From 514706446ed89eab4d8aa1ef240049a3260d6d13 Mon Sep 17 00:00:00 2001 From: Matthew Flatt Date: Sat, 6 Nov 2010 16:33:01 -0600 Subject: [PATCH] overhaul plot organization by moving needed C source to src/plot and building during `make', but stripping out the copies of gd, png, and zlib; instead, hook a dc<%>-based back end into plot --- collects/dynext/compile-unit.rkt | 4 +- collects/dynext/link-unit.rkt | 17 +- collects/dynext/private/info.rkt | 3 - collects/dynext/private/macinc.rktl | 64 - collects/dynext/private/stdio.rkt | 92 +- collects/meta/check-dists.rkt | 2 +- collects/meta/dist-specs.rkt | 3 - collects/plot/fit-low-level.rkt | 9 +- collects/plot/info.rkt | 2 - collects/plot/plplot.rkt | 90 +- collects/plot/pre-installer.rkt | 61 - collects/plot/src/.gitignore | 1 - collects/plot/src/all/adler32.c | 48 - collects/plot/src/all/compress.c | 68 - collects/plot/src/all/crc32.c | 162 - collects/plot/src/all/csa.h | 46 - collects/plot/src/all/csa_internal.h | 99 - collects/plot/src/all/deflate.c | 1350 ----- collects/plot/src/all/deflate.h | 318 - collects/plot/src/all/gd.c | 3114 ---------- collects/plot/src/all/gd.h | 626 -- collects/plot/src/all/gd_drv.c | 1143 ---- collects/plot/src/all/gd_gd.c | 325 - collects/plot/src/all/gd_gd2.c | 1016 ---- collects/plot/src/all/gd_io.c | 179 - collects/plot/src/all/gd_io.h | 47 - collects/plot/src/all/gd_io_dp.c | 421 -- collects/plot/src/all/gd_io_file.c | 147 - collects/plot/src/all/gd_io_ss.c | 168 - collects/plot/src/all/gd_jpeg.c | 850 --- collects/plot/src/all/gd_png.c | 792 --- collects/plot/src/all/gd_ss.c | 58 - collects/plot/src/all/gd_topal.c | 2010 ------ collects/plot/src/all/gdcache.c | 218 - collects/plot/src/all/gdcache.h | 85 - collects/plot/src/all/gdfontg.c | 4382 ------------- collects/plot/src/all/gdfontg.h | 29 - collects/plot/src/all/gdfontl.c | 4639 -------------- collects/plot/src/all/gdfontl.h | 30 - collects/plot/src/all/gdfontmb.c | 3869 ------------ collects/plot/src/all/gdfontmb.h | 28 - collects/plot/src/all/gdfonts.c | 3869 ------------ collects/plot/src/all/gdfonts.h | 28 - collects/plot/src/all/gdfontt.c | 2590 -------- collects/plot/src/all/gdfontt.h | 29 - collects/plot/src/all/gdhelpers.c | 101 - collects/plot/src/all/gdhelpers.h | 19 - collects/plot/src/all/gdkanji.c | 660 -- collects/plot/src/all/gdtables.c | 726 --- collects/plot/src/all/gdxpm.c | 154 - collects/plot/src/all/gzio.c | 875 --- collects/plot/src/all/infblock.c | 403 -- collects/plot/src/all/infblock.h | 39 - collects/plot/src/all/infcodes.c | 251 - collects/plot/src/all/infcodes.h | 27 - collects/plot/src/all/inffast.c | 183 - collects/plot/src/all/inffast.h | 17 - collects/plot/src/all/inffixed.h | 151 - collects/plot/src/all/inflate.c | 366 -- collects/plot/src/all/inftrees.c | 454 -- collects/plot/src/all/inftrees.h | 58 - collects/plot/src/all/infutil.c | 87 - collects/plot/src/all/infutil.h | 98 - collects/plot/src/all/jisx0208.h | 1206 ---- collects/plot/src/all/png.c | 805 --- collects/plot/src/all/png.h | 3283 ---------- collects/plot/src/all/pngasmrd.h | 11 - collects/plot/src/all/pngconf.h | 1348 ---- collects/plot/src/all/pngerror.c | 291 - collects/plot/src/all/pnggccrd.c | 5397 ----------------- collects/plot/src/all/pngget.c | 927 --- collects/plot/src/all/pngmem.c | 566 -- collects/plot/src/all/pngpread.c | 1543 ----- collects/plot/src/all/pngread.c | 1424 ----- collects/plot/src/all/pngrio.c | 161 - collects/plot/src/all/pngrtran.c | 4175 ------------- collects/plot/src/all/pngrutil.c | 3101 ---------- collects/plot/src/all/pngset.c | 1160 ---- collects/plot/src/all/pngtrans.c | 640 -- collects/plot/src/all/pngvcrd.c | 3845 ------------ collects/plot/src/all/pngwio.c | 228 - collects/plot/src/all/pngwrite.c | 1450 ----- collects/plot/src/all/pngwtran.c | 563 -- collects/plot/src/all/pngwutil.c | 2675 -------- collects/plot/src/all/ps.h | 70 - collects/plot/src/all/resource.h | 24 - collects/plot/src/all/trees.c | 1214 ---- collects/plot/src/all/trees.h | 128 - collects/plot/src/all/uncompr.c | 58 - collects/plot/src/all/version.h | 19 - collects/plot/src/all/wbmp.c | 376 -- collects/plot/src/all/wbmp.h | 48 - collects/plot/src/all/zconf.h | 279 - collects/plot/src/all/zlib.h | 893 --- collects/plot/src/all/zutil.c | 225 - collects/plot/src/all/zutil.h | 220 - collects/plot/view.rkt | 62 +- src/Makefile.in | 16 + src/configure | 32 +- src/plot/Makefile.in | 58 + src/plot/build.rkt | 32 + src/plot/dllexport.h | 6 + {collects/plot/src => src/plot}/fit/fit.c | 0 {collects/plot/src => src/plot}/fit/fit.h | 2 +- {collects/plot/src => src/plot}/fit/matrix.c | 0 {collects/plot/src => src/plot}/fit/matrix.h | 2 +- src/plot/plplot/dc_drv.c | 266 + .../src/all => src/plot/plplot}/disptab.h | 0 .../src/all => src/plot/plplot}/drivers.h | 1 + .../src/all => src/plot/plplot}/metadefs.h | 0 .../plot/src/all => src/plot/plplot}/nan.h | 0 .../plot/src/all => src/plot/plplot}/pdf.h | 0 .../src/all => src/plot/plplot}/pdfutils.c | 0 .../src/all => src/plot/plplot}/plConfig.h | 0 .../plot/src/all => src/plot/plplot}/plDevs.h | 0 .../plot/src/all => src/plot/plplot}/plargs.c | 0 .../plot/src/all => src/plot/plplot}/plbox.c | 0 .../plot/src/all => src/plot/plplot}/plbuf.c | 0 .../src/all => src/plot/plplot}/plcdemos.h | 0 .../plot/src/all => src/plot/plplot}/plcont.c | 0 .../plot/src/all => src/plot/plplot}/plcore.c | 4 +- .../plot/src/all => src/plot/plplot}/plcore.h | 1 + .../plot/src/all => src/plot/plplot}/plctrl.c | 0 .../plot/src/all => src/plot/plplot}/plcvt.c | 0 .../src/all => src/plot/plplot}/pldebug.h | 0 .../plot/src/all => src/plot/plplot}/pldtik.c | 0 .../src/all => src/plot/plplot}/plevent.h | 0 .../plot/src/all => src/plot/plplot}/plfill.c | 0 .../src/all => src/plot/plplot}/plfreetype.h | 0 .../src/all => src/plot/plplot}/plgridd.c | 0 .../plot/src/all => src/plot/plplot}/plhist.c | 0 .../src/all => src/plot/plplot}/plimage.c | 0 .../plot/src/all => src/plot/plplot}/plline.c | 0 .../plot/src/all => src/plot/plplot}/plmap.c | 0 .../plot/src/all => src/plot/plplot}/plmeta.c | 0 .../plot/src/all => src/plot/plplot}/plot3d.c | 0 .../plot/src/all => src/plot/plplot}/plpage.c | 0 .../plot/src/all => src/plot/plplot}/plplot.h | 4 +- .../src/all => src/plot/plplot}/plplotP.h | 0 .../plot/src/all => src/plot/plplot}/plsdef.c | 0 .../src/all => src/plot/plplot}/plshade.c | 0 .../src/all => src/plot/plplot}/plstripc.c | 0 .../plot/src/all => src/plot/plplot}/plstrm.h | 0 .../plot/src/all => src/plot/plplot}/plsym.c | 0 .../plot/src/all => src/plot/plplot}/pltick.c | 0 .../plot/src/all => src/plot/plplot}/plvpor.c | 0 .../plot/src/all => src/plot/plplot}/plwind.c | 0 .../plot/src/all => src/plot/plplot}/plxwd.h | 0 src/racket/configure.ac | 17 +- src/racket/gc2/xform-mod.rkt | 7 + 150 files changed, 610 insertions(+), 76053 deletions(-) delete mode 100644 collects/dynext/private/info.rkt delete mode 100644 collects/dynext/private/macinc.rktl delete mode 100644 collects/plot/pre-installer.rkt delete mode 100644 collects/plot/src/.gitignore delete mode 100644 collects/plot/src/all/adler32.c delete mode 100644 collects/plot/src/all/compress.c delete mode 100644 collects/plot/src/all/crc32.c delete mode 100644 collects/plot/src/all/csa.h delete mode 100644 collects/plot/src/all/csa_internal.h delete mode 100644 collects/plot/src/all/deflate.c delete mode 100644 collects/plot/src/all/deflate.h delete mode 100644 collects/plot/src/all/gd.c delete mode 100644 collects/plot/src/all/gd.h delete mode 100644 collects/plot/src/all/gd_drv.c delete mode 100644 collects/plot/src/all/gd_gd.c delete mode 100644 collects/plot/src/all/gd_gd2.c delete mode 100644 collects/plot/src/all/gd_io.c delete mode 100644 collects/plot/src/all/gd_io.h delete mode 100644 collects/plot/src/all/gd_io_dp.c delete mode 100644 collects/plot/src/all/gd_io_file.c delete mode 100644 collects/plot/src/all/gd_io_ss.c delete mode 100644 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collects/plot/src/all/gdtables.c delete mode 100644 collects/plot/src/all/gdxpm.c delete mode 100644 collects/plot/src/all/gzio.c delete mode 100644 collects/plot/src/all/infblock.c delete mode 100644 collects/plot/src/all/infblock.h delete mode 100644 collects/plot/src/all/infcodes.c delete mode 100644 collects/plot/src/all/infcodes.h delete mode 100644 collects/plot/src/all/inffast.c delete mode 100644 collects/plot/src/all/inffast.h delete mode 100644 collects/plot/src/all/inffixed.h delete mode 100644 collects/plot/src/all/inflate.c delete mode 100644 collects/plot/src/all/inftrees.c delete mode 100644 collects/plot/src/all/inftrees.h delete mode 100644 collects/plot/src/all/infutil.c delete mode 100644 collects/plot/src/all/infutil.h delete mode 100644 collects/plot/src/all/jisx0208.h delete mode 100644 collects/plot/src/all/png.c delete mode 100644 collects/plot/src/all/png.h delete mode 100644 collects/plot/src/all/pngasmrd.h delete mode 100644 collects/plot/src/all/pngconf.h 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collects/plot/src/all/trees.h delete mode 100644 collects/plot/src/all/uncompr.c delete mode 100644 collects/plot/src/all/version.h delete mode 100644 collects/plot/src/all/wbmp.c delete mode 100644 collects/plot/src/all/wbmp.h delete mode 100644 collects/plot/src/all/zconf.h delete mode 100644 collects/plot/src/all/zlib.h delete mode 100644 collects/plot/src/all/zutil.c delete mode 100644 collects/plot/src/all/zutil.h create mode 100644 src/plot/Makefile.in create mode 100644 src/plot/build.rkt create mode 100644 src/plot/dllexport.h rename {collects/plot/src => src/plot}/fit/fit.c (100%) rename {collects/plot/src => src/plot}/fit/fit.h (98%) rename {collects/plot/src => src/plot}/fit/matrix.c (100%) rename {collects/plot/src => src/plot}/fit/matrix.h (98%) create mode 100644 src/plot/plplot/dc_drv.c rename {collects/plot/src/all => src/plot/plplot}/disptab.h (100%) rename {collects/plot/src/all => src/plot/plplot}/drivers.h (98%) rename {collects/plot/src/all => src/plot/plplot}/metadefs.h (100%) rename {collects/plot/src/all => src/plot/plplot}/nan.h (100%) rename {collects/plot/src/all => src/plot/plplot}/pdf.h (100%) rename {collects/plot/src/all => src/plot/plplot}/pdfutils.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plConfig.h (100%) rename {collects/plot/src/all => src/plot/plplot}/plDevs.h (100%) rename {collects/plot/src/all => src/plot/plplot}/plargs.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plbox.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plbuf.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plcdemos.h (100%) rename {collects/plot/src/all => src/plot/plplot}/plcont.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plcore.c (99%) rename {collects/plot/src/all => src/plot/plplot}/plcore.h (99%) rename {collects/plot/src/all => src/plot/plplot}/plctrl.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plcvt.c (100%) rename {collects/plot/src/all => src/plot/plplot}/pldebug.h (100%) rename {collects/plot/src/all => src/plot/plplot}/pldtik.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plevent.h (100%) rename {collects/plot/src/all => src/plot/plplot}/plfill.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plfreetype.h (100%) rename {collects/plot/src/all => src/plot/plplot}/plgridd.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plhist.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plimage.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plline.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plmap.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plmeta.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plot3d.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plpage.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plplot.h (99%) rename {collects/plot/src/all => src/plot/plplot}/plplotP.h (100%) rename {collects/plot/src/all => src/plot/plplot}/plsdef.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plshade.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plstripc.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plstrm.h (100%) rename {collects/plot/src/all => src/plot/plplot}/plsym.c (100%) rename {collects/plot/src/all => src/plot/plplot}/pltick.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plvpor.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plwind.c (100%) rename {collects/plot/src/all => src/plot/plplot}/plxwd.h (100%) diff --git a/collects/dynext/compile-unit.rkt b/collects/dynext/compile-unit.rkt index 4d40926611..3c2cff9454 100644 --- a/collects/dynext/compile-unit.rkt +++ b/collects/dynext/compile-unit.rkt @@ -1,10 +1,10 @@ (module compile-unit mzscheme (require mzlib/unit - mzlib/include mzlib/process mzlib/sendevent "private/dirs.ss" + "private/stdio.rkt" "private/cmdargs.ss") (require "compile-sig.ss") @@ -266,7 +266,7 @@ [else (bad-name name)])])) (define-values (my-process* stdio-compile) - (let-values ([(p* do-stdio) (include (build-path "private" "stdio.rkt"))]) + (let-values ([(p* do-stdio) (get-stdio)]) (values p* (lambda (start-process quiet?) diff --git a/collects/dynext/link-unit.rkt b/collects/dynext/link-unit.rkt index 5bc2db2a1d..e54bfe32ee 100644 --- a/collects/dynext/link-unit.rkt +++ b/collects/dynext/link-unit.rkt @@ -1,10 +1,10 @@ (module link-unit mzscheme (require mzlib/unit - mzlib/include mzlib/process mzlib/sendevent "private/dirs.ss" + "private/stdio.rkt" "private/cmdargs.ss" "filename-version.ss") @@ -349,7 +349,7 @@ in)) libs output-strings)]) - (unless quiet? + (unless #f ; quiet? (printf "link-extension: ~a\n" command)) (stdio-link (lambda (quiet?) (apply my-process* command)) @@ -420,19 +420,14 @@ (delete-file expfile)))))) (error 'link-extension "can't find an installed linker"))))) - (define (macos-link quiet? input-files output-file) - (macos-make 'link-extension "linking-project" "so" quiet? - input-files output-file null)) - (define link-extension (case (system-type) - [(unix windows macosx) unix/windows-link] - [(macos) macos-link])) + [(unix windows macosx) unix/windows-link])) ;; ---- some helpers: (define-values (my-process* stdio-link) - (let-values ([(p* do-stdio) (include (build-path "private" "stdio.rkt"))]) + (let-values ([(p* do-stdio) (get-stdio)]) (values p* (lambda (start-process quiet?) @@ -444,6 +439,4 @@ (let ([f (build-path d (format "tmp~a.~a" n suffix))]) (if (file-exists? f) (loop (add1 n)) - f))))) - - (include (build-path "private" "macinc.rktl")))) + f))))))) diff --git a/collects/dynext/private/info.rkt b/collects/dynext/private/info.rkt deleted file mode 100644 index 913318c4cf..0000000000 --- a/collects/dynext/private/info.rkt +++ /dev/null @@ -1,3 +0,0 @@ -#lang setup/infotab - -(define compile-omit-paths '("stdio.rkt")) diff --git a/collects/dynext/private/macinc.rktl b/collects/dynext/private/macinc.rktl deleted file mode 100644 index c2f849657e..0000000000 --- a/collects/dynext/private/macinc.rktl +++ /dev/null @@ -1,64 +0,0 @@ - (define (cw-event . args) - (apply send-event "CWIE" args)) - (define (cw . args) - (apply cw-event "MMPR" args)) - - (define (ping-cw?) - (with-handlers ([void (lambda (x) #f)]) - (cw "GDoc") - #t)) - - (define (macos-make name base-project tmp-suffix quiet? input-files output-file includes) - (define src-files (map path->complete-path input-files)) - (define dest-file (path->complete-path output-file)) - (define proj-dir (build-path (collection-path "dynext"))) - (define tmp-proj (build-path proj-dir "building-extension")) - (define ext-out (build-path proj-dir (format "extension.~a" tmp-suffix))) - (define debug-out (string-append ext-out ".xSYM")) - (define data-out (string-append tmp-proj " Data")) - (define (delete f) - (cond - [(file-exists? f) (delete-file f)] - [(directory-exists? f) (map (lambda (i) (delete (build-path f i))) - (directory-list f)) - (delete-directory f)] - [else (void)])) - - (when (string=? (system-library-subpath) "68k-mac") - (error name "not supported for 68k-mac")) - - (delete dest-file) - (delete tmp-proj) - (unless (copy-file (build-path proj-dir base-project) - tmp-proj) - (error name "couldn't create the CodeWarrior project")) - - (with-handlers ([void (lambda (exn) - (error name "~a" (exn-message exn)))]) - (let ([started? (ping-cw?)]) - (unless started? - ; Start CW - (system "CWIE") - (unless (ping-cw?) - (sleep 1) ; wait a second... - (unless (ping-cw?) - (error name "couldn't start CodeWarrior; try starting CW, then leave it open while compiling")))) - ; Open the project - (cw-event "aevt" "odoc" `#(file ,tmp-proj)) - (cw "SDfP" `#(file ,tmp-proj)) - (cw "AddF" (map (lambda (f) `#(file ,f)) src-files)) - (cw "Make") - ; Clean up - (cw "ClsP") - (unless started? - (cw-event "aevt" "quit") - (let loop () (sleep 1) (when (ping-cw?) (loop)))))) - - (delete tmp-proj) - (delete debug-out) - (delete data-out) - - (unless (rename-file-or-directory ext-out dest-file) - (unless (copy-file ext-out dest-file) - (error name "couldn't move output to destination: ~a" - output-file)))) diff --git a/collects/dynext/private/stdio.rkt b/collects/dynext/private/stdio.rkt index e4f533310a..d3b1f9e2a8 100644 --- a/collects/dynext/private/stdio.rkt +++ b/collects/dynext/private/stdio.rkt @@ -1,50 +1,56 @@ +#lang racket/base +(require racket/system) -(values - (if (member (system-library-subpath) '("rs6k-aix" "parisc-hpux")) - (letrec ([pseudo-process* - (lambda (c . args) - (if (null? args) - (let ([r (process* "/usr/bin/csh" "-t")]) - (display c (cadr r)) - (newline (cadr r)) - r) - (apply pseudo-process* (string-append c " " (car args)) (cdr args))))]) - pseudo-process*) - process*) - - (lambda (start-process quiet? error) - (let* ([l (start-process quiet?)] - [in (car l)] - [out (cadr l)] - [in-error (cadddr l)] - [control (cadddr (cdr l))] +(provide get-stdio) - [collect-output (box "")] - - [make-collector - (lambda (in dest box) - (thread (lambda () - (let loop () - (let ([t (read-line in 'any)]) - (unless (eof-object? t) - (unless quiet? (fprintf (dest) "~a\n" t)) - (set-box! box (string-append (unbox box) - (string #\newline) t)) - (loop)))))))] - [in-thread (make-collector in current-output-port collect-output)] - [in-error-thread (make-collector in-error current-error-port collect-output)]) +(define (get-stdio) + (values + (if (member (system-library-subpath) '("rs6k-aix" "parisc-hpux")) + (letrec ([pseudo-process* + (lambda (c . args) + (if (null? args) + (let ([r (process* "/usr/bin/csh" "-t")]) + (display c (cadr r)) + (newline (cadr r)) + r) + (apply pseudo-process* (string-append c " " (car args)) (cdr args))))]) + pseudo-process*) + process*) + + (lambda (start-process quiet? error) + (let* ([l (start-process quiet?)] + [in (car l)] + [out (cadr l)] + [in-error (cadddr l)] + [control (cadddr (cdr l))] - (close-output-port out) + [collect-output (box "")] + + [make-collector + (lambda (in dest box) + (thread (lambda () + (let loop () + (let ([t (read-line in 'any)]) + (unless (eof-object? t) + (unless quiet? (fprintf (dest) "~a\n" t)) + (set-box! box (string-append (unbox box) + (string #\newline) t)) + (loop)))))))] + [in-thread (make-collector in current-output-port collect-output)] + [in-error-thread (make-collector in-error current-error-port collect-output)]) - (control 'wait) + (close-output-port out) - (thread-wait in-thread) - (thread-wait in-error-thread) + (control 'wait) - (close-input-port in) - (close-input-port in-error) + (thread-wait in-thread) + (thread-wait in-error-thread) + + (close-input-port in) + (close-input-port in-error) + + (unless (eq? (control 'status) 'done-ok) + (error (if quiet? + (unbox collect-output) + "command failed"))))))) - (unless (eq? (control 'status) 'done-ok) - (error (if quiet? - (unbox collect-output) - "command failed")))))) diff --git a/collects/meta/check-dists.rkt b/collects/meta/check-dists.rkt index 700e839cf9..600bdb1ba1 100644 --- a/collects/meta/check-dists.rkt +++ b/collects/meta/check-dists.rkt @@ -26,7 +26,7 @@ (set-bin-files-delayed-lists! ;; FIXME: hard-wired list of binary-specific files - '(("racket/collects/sgl/compiled/gl-info_ss.zo"))) + '()) (expand-spec 'distributions) diff --git a/collects/meta/dist-specs.rkt b/collects/meta/dist-specs.rkt index 7c80d49424..abfeb7c217 100644 --- a/collects/meta/dist-specs.rkt +++ b/collects/meta/dist-specs.rkt @@ -537,9 +537,6 @@ mr-extras :+= (- (+ (package: "mrlib/") ;; -------------------- sgl mr-extras :+= (package: "sgl/") -;; gl-info.rkt doesn't exist, but gl-info.zo holds platform-dependent data -platform-dependent :+= (and (collects: "sgl/") - (srcfile: "sgl/gl-info")) ;; -------------------- syntax-color mz-extras :+= (package: "syntax-color") diff --git a/collects/plot/fit-low-level.rkt b/collects/plot/fit-low-level.rkt index 6d55629914..82415aeb12 100644 --- a/collects/plot/fit-low-level.rkt +++ b/collects/plot/fit-low-level.rkt @@ -1,10 +1,9 @@ -(module fit-low-level mzscheme - (require mzlib/foreign mzlib/runtime-path) +(module fit-low-level racket/base + (require mzlib/foreign mzlib/runtime-path + (for-syntax racket/base)) (unsafe!) - (define-runtime-path libfit-path - (build-path "compiled" "native" (system-library-subpath #f) - (path-replace-suffix "libfit" (system-type 'so-suffix)))) + (define-runtime-path libfit-path '(so "libfit")) (define libfit (ffi-lib libfit-path)) diff --git a/collects/plot/info.rkt b/collects/plot/info.rkt index 3e04e6ed0d..c3b882fa43 100644 --- a/collects/plot/info.rkt +++ b/collects/plot/info.rkt @@ -1,7 +1,5 @@ #lang setup/infotab -(define pre-install-collection "pre-installer.rkt") - (define scribblings '(("plot.scrbl" (multi-page) (gui-library 50)))) (define compile-omit-paths '("demos")) diff --git a/collects/plot/plplot.rkt b/collects/plot/plplot.rkt index 109a76a536..7ef52d4175 100644 --- a/collects/plot/plplot.rkt +++ b/collects/plot/plplot.rkt @@ -1,11 +1,12 @@ -(module plplot mzscheme +#lang racket/base +(require mzlib/etc + racket/list + ffi/unsafe + racket/runtime-path + racket/class + (for-syntax racket/base)) -(require mzlib/etc mzlib/list mzlib/foreign mzlib/runtime-path) -(unsafe!) - -(define-runtime-path plplot-path - (build-path "compiled" "native" (system-library-subpath #f) - (path-replace-suffix "libplplot" (system-type 'so-suffix)))) +(define-runtime-path plplot-path '(so "libplplot")) (define-runtime-path font-dir "fonts") (define libplplot (ffi-lib plplot-path)) @@ -29,6 +30,20 @@ (ptr-set! p _byte len 0) malloced-bytes))) +(define-cstruct _dc_Dev + ([user_data _pointer] + [drawLine _fpointer] + [drawLines _fpointer] + [fillPoly _fpointer] + [setWidth _fpointer] + [setColor _fpointer] + [setColorRGB _fpointer] + [startPage _fpointer] + [endPage _fpointer] + [endDoc _fpointer])) + +(define _PLINT _int) + (define _plflt _double*) (define _plint _int) @@ -67,7 +82,7 @@ (get-ffi-obj "c_plsfnam" libplplot (_fun _string -> _void))) (define* pl-init-plot - (get-ffi-obj "c_plinit" libplplot (_fun -> _void))) + (get-ffi-obj "c_plinit" libplplot (_fun -> _dc_Dev-pointer))) (define* pl-finish-plot (get-ffi-obj "c_plend" libplplot (_fun -> _void))) @@ -314,6 +329,63 @@ (plscmap1l 0 '(0.0 1.0) '(240 0) '(.6 .6) '(.8 .8)) (pl-mesh3dc-int x-vals y-vals z-vals opts levels))) +(define (dc-draw-line dest x1 y1 x2 y2) + (send (ptr-ref dest _racket) draw-line x1 y1 x2 y2)) +(define (dc-draw-multi dest xs ys n go) + (let ([xs (cast xs _pointer (_vector o _short n))] + [ys (cast ys _pointer (_vector o _short n))]) + (go (ptr-ref dest _racket) + (for/list ([x (in-vector xs)] + [y (in-vector ys)]) + (cons x y))))) +(define (dc-draw-lines dest xs ys n) + (dc-draw-multi dest xs ys n + (lambda (dc l) (send dc draw-lines l)))) +(define (dc-fill-poly dest xs ys n) + (dc-draw-multi dest xs ys n + (lambda (dc l) (send dc draw-polygon l)))) +(define (dc-set-width dest w) + (send (ptr-ref dest _racket) set-width w)) +(define (dc-set-color dest index) + (send (ptr-ref dest _racket) set-index-color index)) +(define (dc-set-color/rgb dest r g b) + (send (ptr-ref dest _racket) set-rgb-color r g b)) +(define (dc-start-page dest) + (send (ptr-ref dest _racket) start-page)) +(define (dc-end-page dest) + (send (ptr-ref dest _racket) end-page)) +(define (dc-end-doc dest) + (send (ptr-ref dest _racket) end-doc) + (free-immobile-cell dest)) +(define draw_line (function-ptr dc-draw-line + (_fun _pointer _short _short _short _short -> _void))) +(define draw_lines (function-ptr dc-draw-lines + (_fun _pointer _pointer _pointer _PLINT -> _void))) +(define fill_poly (function-ptr dc-fill-poly + (_fun _pointer _pointer _pointer _PLINT -> _void))) +(define set_width (function-ptr dc-set-width + (_fun _pointer _int -> _void))) +(define set_color (function-ptr dc-set-color + (_fun _pointer _int -> _void))) +(define set_color_rgb (function-ptr dc-set-color/rgb + (_fun _pointer _int _int _int -> _void))) +(define start_page (function-ptr dc-start-page + (_fun _pointer -> _void))) +(define end_page (function-ptr dc-end-page + (_fun _pointer -> _void))) +(define end_doc (function-ptr dc-end-doc + (_fun _pointer -> _void))) -) +(provide init-dev!) +(define (init-dev! dev obj) + (set-dc_Dev-user_data! dev (malloc-immobile-cell obj)) + (set-dc_Dev-drawLine! dev draw_line) + (set-dc_Dev-drawLines! dev draw_lines) + (set-dc_Dev-fillPoly! dev fill_poly) + (set-dc_Dev-setWidth! dev set_width) + (set-dc_Dev-setColor! dev set_color) + (set-dc_Dev-setColorRGB! dev set_color_rgb) + (set-dc_Dev-startPage! dev start_page) + (set-dc_Dev-endPage! dev end_page) + (set-dc_Dev-endDoc! dev end_doc)) diff --git a/collects/plot/pre-installer.rkt b/collects/plot/pre-installer.rkt deleted file mode 100644 index 6aa7301939..0000000000 --- a/collects/plot/pre-installer.rkt +++ /dev/null @@ -1,61 +0,0 @@ -#lang scheme/base -(require scheme/runtime-path scheme/path scheme/file - dynext/file dynext/link dynext/compile) - -(define-runtime-path top-dir ".") -(define (from-top . ps) (simplify-path (apply build-path top-dir ps) #f)) - -(define dir->libname '(["all" "libplplot"] ["fit" "libfit"])) -(define src-dir (from-top "src")) -(define tmp-dir (from-top "src/tmp")) -(define sys-subpath (system-library-subpath #f)) -(define native-dir (from-top "compiled" "native" sys-subpath)) - -(define (build-library lib) - (define libname (cond [(assoc (path->string lib) dir->libname) => cadr] - [else (error 'plot-preinstaller - "Found an unknown source directory: ~s\n" - lib)])) - (define so-name (build-path native-dir (append-extension-suffix libname))) - (define c-files (filter (lambda (f) - (regexp-match? "\\.[cC]$" (path->string f))) - (directory-list))) - (parameterize ([current-extension-compiler-flags - (append (current-extension-compiler-flags) - (case (system-type) - [(windows) '("/DHAVE_LIBPNG" "/DPLD_png")] - [else '("-DHAVE_LIBPNG" "-DPLD_png")]))] - ;; we compile a simple .so, not an extension - [current-standard-link-libraries '()]) - (when (or (not (file-exists? so-name)) - (let ([so-time (file-or-directory-modify-seconds so-name)]) - (for/or ([f c-files]) - ((file-or-directory-modify-seconds f) . > . so-time)))) - (printf "plot: compiling \"~a\" -> \"~a\"...\n" - (find-relative-path (from-top) (current-directory)) - (find-relative-path (from-top) so-name)) - (make-directory* tmp-dir) - (for ([c-file c-files]) - (let ([o-file (append-object-suffix (path-replace-suffix c-file #""))]) - ;; first #t means quiet (here and in link-extension) - (compile-extension #t c-file (build-path tmp-dir o-file) null))) - (parameterize ([current-directory tmp-dir]) - (let* ([o-files (directory-list)] - [flags (if (string=? "i386-cygwin" (path->string sys-subpath)) - ;; DLL needs every dependence explicit: - '("-lc" "-lm" "-lcygwin" "-lkernel32") - null)]) - (link-extension #t (append o-files flags) so-name))) - (delete-directory/files tmp-dir)))) - -(provide pre-installer) -(define (pre-installer main-collects-parent-dir) - (unless (directory-exists? src-dir) - (error 'plot-preinstall "Could not find the source directory at \"~a\"" - src-dir)) - (unless (directory-exists? native-dir) (make-directory* native-dir)) - (parameterize ([current-directory src-dir]) - (for ([path (directory-list)]) - (when (directory-exists? path) - (parameterize ([current-directory path]) - (build-library path)))))) diff --git a/collects/plot/src/.gitignore b/collects/plot/src/.gitignore deleted file mode 100644 index 82520ca123..0000000000 --- a/collects/plot/src/.gitignore +++ /dev/null @@ -1 +0,0 @@ -/tmp/ diff --git a/collects/plot/src/all/adler32.c b/collects/plot/src/all/adler32.c deleted file mode 100644 index 07503edd95..0000000000 --- a/collects/plot/src/all/adler32.c +++ /dev/null @@ -1,48 +0,0 @@ -/* adler32.c -- compute the Adler-32 checksum of a data stream - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id: adler32.c,v 1.1 2004/03/01 20:54:45 cozmic Exp $ */ - -#include "zlib.h" - -#define BASE 65521L /* largest prime smaller than 65536 */ -#define NMAX 5552 -/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ - -#define DO1(buf,i) {s1 += buf[i]; s2 += s1;} -#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1); -#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2); -#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); -#define DO16(buf) DO8(buf,0); DO8(buf,8); - -/* ========================================================================= */ -uLong ZEXPORT adler32(adler, buf, len) - uLong adler; - const Bytef *buf; - uInt len; -{ - unsigned long s1 = adler & 0xffff; - unsigned long s2 = (adler >> 16) & 0xffff; - int k; - - if (buf == Z_NULL) return 1L; - - while (len > 0) { - k = len < NMAX ? len : NMAX; - len -= k; - while (k >= 16) { - DO16(buf); - buf += 16; - k -= 16; - } - if (k != 0) do { - s1 += *buf++; - s2 += s1; - } while (--k); - s1 %= BASE; - s2 %= BASE; - } - return (s2 << 16) | s1; -} diff --git a/collects/plot/src/all/compress.c b/collects/plot/src/all/compress.c deleted file mode 100644 index a28c37ea08..0000000000 --- a/collects/plot/src/all/compress.c +++ /dev/null @@ -1,68 +0,0 @@ -/* compress.c -- compress a memory buffer - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id: compress.c,v 1.1 2004/03/01 20:54:45 cozmic Exp $ */ - -#include "zlib.h" - -/* =========================================================================== - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least 0.1% larger than sourceLen plus - 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. - - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -*/ -int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; - int level; -{ - z_stream stream; - int err; - - stream.next_in = (Bytef*)source; - stream.avail_in = (uInt)sourceLen; -#ifdef MAXSEG_64K - /* Check for source > 64K on 16-bit machine: */ - if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; -#endif - stream.next_out = dest; - stream.avail_out = (uInt)*destLen; - if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; - - stream.zalloc = (alloc_func)0; - stream.zfree = (free_func)0; - stream.opaque = (voidpf)0; - - err = deflateInit(&stream, level); - if (err != Z_OK) return err; - - err = deflate(&stream, Z_FINISH); - if (err != Z_STREAM_END) { - deflateEnd(&stream); - return err == Z_OK ? Z_BUF_ERROR : err; - } - *destLen = stream.total_out; - - err = deflateEnd(&stream); - return err; -} - -/* =========================================================================== - */ -int ZEXPORT compress (dest, destLen, source, sourceLen) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; -{ - return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION); -} diff --git a/collects/plot/src/all/crc32.c b/collects/plot/src/all/crc32.c deleted file mode 100644 index 5380ea9278..0000000000 --- a/collects/plot/src/all/crc32.c +++ /dev/null @@ -1,162 +0,0 @@ -/* crc32.c -- compute the CRC-32 of a data stream - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id: crc32.c,v 1.1 2004/03/01 20:54:46 cozmic Exp $ */ - -#include "zlib.h" - -#define local static - -#ifdef DYNAMIC_CRC_TABLE - -local int crc_table_empty = 1; -local uLongf crc_table[256]; -local void make_crc_table OF((void)); - -/* - Generate a table for a byte-wise 32-bit CRC calculation on the polynomial: - x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1. - - Polynomials over GF(2) are represented in binary, one bit per coefficient, - with the lowest powers in the most significant bit. Then adding polynomials - is just exclusive-or, and multiplying a polynomial by x is a right shift by - one. If we call the above polynomial p, and represent a byte as the - polynomial q, also with the lowest power in the most significant bit (so the - byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p, - where a mod b means the remainder after dividing a by b. - - This calculation is done using the shift-register method of multiplying and - taking the remainder. The register is initialized to zero, and for each - incoming bit, x^32 is added mod p to the register if the bit is a one (where - x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by - x (which is shifting right by one and adding x^32 mod p if the bit shifted - out is a one). We start with the highest power (least significant bit) of - q and repeat for all eight bits of q. - - The table is simply the CRC of all possible eight bit values. This is all - the information needed to generate CRC's on data a byte at a time for all - combinations of CRC register values and incoming bytes. -*/ -local void make_crc_table() -{ - uLong c; - int n, k; - uLong poly; /* polynomial exclusive-or pattern */ - /* terms of polynomial defining this crc (except x^32): */ - static const Byte p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26}; - - /* make exclusive-or pattern from polynomial (0xedb88320L) */ - poly = 0L; - for (n = 0; n < sizeof(p)/sizeof(Byte); n++) - poly |= 1L << (31 - p[n]); - - for (n = 0; n < 256; n++) - { - c = (uLong)n; - for (k = 0; k < 8; k++) - c = c & 1 ? poly ^ (c >> 1) : c >> 1; - crc_table[n] = c; - } - crc_table_empty = 0; -} -#else -/* ======================================================================== - * Table of CRC-32's of all single-byte values (made by make_crc_table) - */ -local const uLongf crc_table[256] = { - 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L, - 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L, - 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, - 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL, - 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L, - 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L, - 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, - 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL, - 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L, - 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL, - 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, - 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L, - 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L, - 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL, - 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, - 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L, - 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL, - 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L, - 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, - 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L, - 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL, - 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L, - 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L, - 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL, - 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L, - 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L, - 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L, - 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L, - 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L, - 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL, - 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, - 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L, - 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L, - 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL, - 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL, - 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L, - 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL, - 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L, - 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, - 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L, - 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL, - 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L, - 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, - 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL, - 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L, - 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L, - 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, - 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L, - 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L, - 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L, - 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, - 0x2d02ef8dL -}; -#endif - -/* ========================================================================= - * This function can be used by asm versions of crc32() - */ -const uLongf * ZEXPORT get_crc_table() -{ -#ifdef DYNAMIC_CRC_TABLE - if (crc_table_empty) make_crc_table(); -#endif - return (const uLongf *)crc_table; -} - -/* ========================================================================= */ -#define DO1(buf) crc = crc_table[((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8); -#define DO2(buf) DO1(buf); DO1(buf); -#define DO4(buf) DO2(buf); DO2(buf); -#define DO8(buf) DO4(buf); DO4(buf); - -/* ========================================================================= */ -uLong ZEXPORT crc32(crc, buf, len) - uLong crc; - const Bytef *buf; - uInt len; -{ - if (buf == Z_NULL) return 0L; -#ifdef DYNAMIC_CRC_TABLE - if (crc_table_empty) - make_crc_table(); -#endif - crc = crc ^ 0xffffffffL; - while (len >= 8) - { - DO8(buf); - len -= 8; - } - if (len) do { - DO1(buf); - } while (--len); - return crc ^ 0xffffffffL; -} diff --git a/collects/plot/src/all/csa.h b/collects/plot/src/all/csa.h deleted file mode 100644 index 651ef97848..0000000000 --- a/collects/plot/src/all/csa.h +++ /dev/null @@ -1,46 +0,0 @@ -/****************************************************************************** - * - * File: csa.h - * - * Created: 16/10/2002 - * - * Author: Pavel Sakov - * CSIRO Marine Research - * - * Purpose: A header for csa library (2D data approximation with - * bivariate cubic spline) - * - * Revisions: None - * - *****************************************************************************/ - -#if !defined(_CSA_H) -#define _CSA_H - -#if !defined(_POINT_STRUCT) -#define _POINT_STRUCT -typedef struct { - double x; - double y; - double z; -} point; -#endif - -extern int csa_verbose; -extern char* csa_version; - -struct csa; -typedef struct csa csa; - -csa* csa_create(); -void csa_destroy(csa* a); -void csa_addpoints(csa* a, int n, point points[]); -void csa_calculatespline(csa* a); -void csa_approximate_point(csa* a, point* p); -void csa_approximate_points(csa* a, int n, point* points); - -void csa_setnmin(csa* a, int nmin); -void csa_setnmax(csa* a, int nmax); -void csa_setk(csa* a, int k); - -#endif diff --git a/collects/plot/src/all/csa_internal.h b/collects/plot/src/all/csa_internal.h deleted file mode 100644 index 1a06dbf724..0000000000 --- a/collects/plot/src/all/csa_internal.h +++ /dev/null @@ -1,99 +0,0 @@ -/****************************************************************************** - * - * File: csa.h - * - * Created: 16/10/2002 - * - * Author: Pavel Sakov - * CSIRO Marine Research - * - * Purpose: An "internal" header for csa library (2D data approximation - * with bivariate cubic spline) - * - * Revisions: None - * - *****************************************************************************/ - -#if !defined(_CSA_INTERNAL_H) -#define _CSA_INTERNAL_H - -#include "csa.h" - -struct square; -typedef struct square square; - -typedef struct { - square* parent; - int index; /* index within parent square; 0 <= index <= - * 3 */ - point vertices[3]; - point middle; /* barycenter */ - double h; /* parent square edge length */ - double r; /* data visibility radius */ - - /* - * points used -- in primary triangles only - */ - int nallocated; - int npoints; - point** points; - - int primary; /* flag -- whether calculate spline - * coefficients directly (by least squares - * method) (primary = 1) or indirectly (from - * * C1 smoothness conditions) (primary = 0) - */ - int hascoeffs; /* flag -- whether there are no NaNs among - * the spline coefficients */ - int order; /* spline order -- for primary triangles - * only */ -} triangle; - -struct square { - csa* parent; - int i, j; /* indices */ - - int nallocated; - int npoints; - point** points; - - int primary; /* flag -- whether this square contains a - * primary triangle */ - - triangle* triangles[4]; - - double coeffs[25]; -}; - -struct csa { - int verbose; /* flag */ - - double xmin; - double xmax; - double ymin; - double ymax; - - int nallocated; - int npoints; - point** points; - - /* - * squarization - */ - int ni; - int nj; - double h; - square*** squares; /* square* [j][i] */ - - int npt; /* Number of Primary Triangles */ - triangle** pt; /* Primary Triangles -- triangle* [npt] */ - - /* - * algorithm parameters - */ - int nmin; - int nmax; - double k; -}; - -#endif diff --git a/collects/plot/src/all/deflate.c b/collects/plot/src/all/deflate.c deleted file mode 100644 index dde41bad11..0000000000 --- a/collects/plot/src/all/deflate.c +++ /dev/null @@ -1,1350 +0,0 @@ -/* deflate.c -- compress data using the deflation algorithm - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * ALGORITHM - * - * The "deflation" process depends on being able to identify portions - * of the input text which are identical to earlier input (within a - * sliding window trailing behind the input currently being processed). - * - * The most straightforward technique turns out to be the fastest for - * most input files: try all possible matches and select the longest. - * The key feature of this algorithm is that insertions into the string - * dictionary are very simple and thus fast, and deletions are avoided - * completely. Insertions are performed at each input character, whereas - * string matches are performed only when the previous match ends. So it - * is preferable to spend more time in matches to allow very fast string - * insertions and avoid deletions. The matching algorithm for small - * strings is inspired from that of Rabin & Karp. A brute force approach - * is used to find longer strings when a small match has been found. - * A similar algorithm is used in comic (by Jan-Mark Wams) and freeze - * (by Leonid Broukhis). - * A previous version of this file used a more sophisticated algorithm - * (by Fiala and Greene) which is guaranteed to run in linear amortized - * time, but has a larger average cost, uses more memory and is patented. - * However the F&G algorithm may be faster for some highly redundant - * files if the parameter max_chain_length (described below) is too large. - * - * ACKNOWLEDGEMENTS - * - * The idea of lazy evaluation of matches is due to Jan-Mark Wams, and - * I found it in 'freeze' written by Leonid Broukhis. - * Thanks to many people for bug reports and testing. - * - * REFERENCES - * - * Deutsch, L.P.,"DEFLATE Compressed Data Format Specification". - * Available in ftp://ds.internic.net/rfc/rfc1951.txt - * - * A description of the Rabin and Karp algorithm is given in the book - * "Algorithms" by R. Sedgewick, Addison-Wesley, p252. - * - * Fiala,E.R., and Greene,D.H. - * Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595 - * - */ - -/* @(#) $Id: deflate.c,v 1.1 2004/03/01 20:54:46 cozmic Exp $ */ - -#include "deflate.h" - -const char deflate_copyright[] = - " deflate 1.1.4 Copyright 1995-2002 Jean-loup Gailly "; -/* - If you use the zlib library in a product, an acknowledgment is welcome - in the documentation of your product. If for some reason you cannot - include such an acknowledgment, I would appreciate that you keep this - copyright string in the executable of your product. - */ - -/* =========================================================================== - * Function prototypes. - */ -typedef enum { - need_more, /* block not completed, need more input or more output */ - block_done, /* block flush performed */ - finish_started, /* finish started, need only more output at next deflate */ - finish_done /* finish done, accept no more input or output */ -} block_state; - -typedef block_state (*compress_func) OF((deflate_state *s, int flush)); -/* Compression function. Returns the block state after the call. */ - -local void fill_window OF((deflate_state *s)); -local block_state deflate_stored OF((deflate_state *s, int flush)); -local block_state deflate_fast OF((deflate_state *s, int flush)); -local block_state deflate_slow OF((deflate_state *s, int flush)); -local void lm_init OF((deflate_state *s)); -local void putShortMSB OF((deflate_state *s, uInt b)); -local void flush_pending OF((z_streamp strm)); -local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size)); -#ifdef ASMV - void match_init OF((void)); /* asm code initialization */ - uInt longest_match OF((deflate_state *s, IPos cur_match)); -#else -local uInt longest_match OF((deflate_state *s, IPos cur_match)); -#endif - -#ifdef DEBUG -local void check_match OF((deflate_state *s, IPos start, IPos match, - int length)); -#endif - -/* =========================================================================== - * Local data - */ - -#define NIL 0 -/* Tail of hash chains */ - -#ifndef TOO_FAR -# define TOO_FAR 4096 -#endif -/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */ - -#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) -/* Minimum amount of lookahead, except at the end of the input file. - * See deflate.c for comments about the MIN_MATCH+1. - */ - -/* Values for max_lazy_match, good_match and max_chain_length, depending on - * the desired pack level (0..9). The values given below have been tuned to - * exclude worst case performance for pathological files. Better values may be - * found for specific files. - */ -typedef struct config_s { - ush good_length; /* reduce lazy search above this match length */ - ush max_lazy; /* do not perform lazy search above this match length */ - ush nice_length; /* quit search above this match length */ - ush max_chain; - compress_func func; -} config; - -local const config configuration_table[10] = { -/* good lazy nice chain */ -/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ -/* 1 */ {4, 4, 8, 4, deflate_fast}, /* maximum speed, no lazy matches */ -/* 2 */ {4, 5, 16, 8, deflate_fast}, -/* 3 */ {4, 6, 32, 32, deflate_fast}, - -/* 4 */ {4, 4, 16, 16, deflate_slow}, /* lazy matches */ -/* 5 */ {8, 16, 32, 32, deflate_slow}, -/* 6 */ {8, 16, 128, 128, deflate_slow}, -/* 7 */ {8, 32, 128, 256, deflate_slow}, -/* 8 */ {32, 128, 258, 1024, deflate_slow}, -/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* maximum compression */ - -/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4 - * For deflate_fast() (levels <= 3) good is ignored and lazy has a different - * meaning. - */ - -#define EQUAL 0 -/* result of memcmp for equal strings */ - -struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ - -/* =========================================================================== - * Update a hash value with the given input byte - * IN assertion: all calls to to UPDATE_HASH are made with consecutive - * input characters, so that a running hash key can be computed from the - * previous key instead of complete recalculation each time. - */ -#define UPDATE_HASH(s,h,c) (h = (((h)<hash_shift) ^ (c)) & s->hash_mask) - - -/* =========================================================================== - * Insert string str in the dictionary and set match_head to the previous head - * of the hash chain (the most recent string with same hash key). Return - * the previous length of the hash chain. - * If this file is compiled with -DFASTEST, the compression level is forced - * to 1, and no hash chains are maintained. - * IN assertion: all calls to to INSERT_STRING are made with consecutive - * input characters and the first MIN_MATCH bytes of str are valid - * (except for the last MIN_MATCH-1 bytes of the input file). - */ -#ifdef FASTEST -#define INSERT_STRING(s, str, match_head) \ - (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ - match_head = s->head[s->ins_h], \ - s->head[s->ins_h] = (Pos)(str)) -#else -#define INSERT_STRING(s, str, match_head) \ - (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ - s->prev[(str) & s->w_mask] = match_head = s->head[s->ins_h], \ - s->head[s->ins_h] = (Pos)(str)) -#endif - -/* =========================================================================== - * Initialize the hash table (avoiding 64K overflow for 16 bit systems). - * prev[] will be initialized on the fly. - */ -#define CLEAR_HASH(s) \ - s->head[s->hash_size-1] = NIL; \ - zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head)); - -/* ========================================================================= */ -int ZEXPORT deflateInit_(strm, level, version, stream_size) - z_streamp strm; - int level; - const char *version; - int stream_size; -{ - return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, - Z_DEFAULT_STRATEGY, version, stream_size); - /* To do: ignore strm->next_in if we use it as window */ -} - -/* ========================================================================= */ -int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, - version, stream_size) - z_streamp strm; - int level; - int method; - int windowBits; - int memLevel; - int strategy; - const char *version; - int stream_size; -{ - deflate_state *s; - int noheader = 0; - static const char* my_version = ZLIB_VERSION; - - ushf *overlay; - /* We overlay pending_buf and d_buf+l_buf. This works since the average - * output size for (length,distance) codes is <= 24 bits. - */ - - if (version == Z_NULL || version[0] != my_version[0] || - stream_size != sizeof(z_stream)) { - return Z_VERSION_ERROR; - } - if (strm == Z_NULL) return Z_STREAM_ERROR; - - strm->msg = Z_NULL; - if (strm->zalloc == Z_NULL) { - strm->zalloc = zcalloc; - strm->opaque = (voidpf)0; - } - if (strm->zfree == Z_NULL) strm->zfree = zcfree; - - if (level == Z_DEFAULT_COMPRESSION) level = 6; -#ifdef FASTEST - level = 1; -#endif - - if (windowBits < 0) { /* undocumented feature: suppress zlib header */ - noheader = 1; - windowBits = -windowBits; - } - if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED || - windowBits < 9 || windowBits > 15 || level < 0 || level > 9 || - strategy < 0 || strategy > Z_HUFFMAN_ONLY) { - return Z_STREAM_ERROR; - } - s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state)); - if (s == Z_NULL) return Z_MEM_ERROR; - strm->state = (struct internal_state FAR *)s; - s->strm = strm; - - s->noheader = noheader; - s->w_bits = windowBits; - s->w_size = 1 << s->w_bits; - s->w_mask = s->w_size - 1; - - s->hash_bits = memLevel + 7; - s->hash_size = 1 << s->hash_bits; - s->hash_mask = s->hash_size - 1; - s->hash_shift = ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH); - - s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte)); - s->prev = (Posf *) ZALLOC(strm, s->w_size, sizeof(Pos)); - s->head = (Posf *) ZALLOC(strm, s->hash_size, sizeof(Pos)); - - s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */ - - overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2); - s->pending_buf = (uchf *) overlay; - s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L); - - if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL || - s->pending_buf == Z_NULL) { - strm->msg = (char*)ERR_MSG(Z_MEM_ERROR); - deflateEnd (strm); - return Z_MEM_ERROR; - } - s->d_buf = overlay + s->lit_bufsize/sizeof(ush); - s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize; - - s->level = level; - s->strategy = strategy; - s->method = (Byte)method; - - return deflateReset(strm); -} - -/* ========================================================================= */ -int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) - z_streamp strm; - const Bytef *dictionary; - uInt dictLength; -{ - deflate_state *s; - uInt length = dictLength; - uInt n; - IPos hash_head = 0; - - if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL || - strm->state->status != INIT_STATE) return Z_STREAM_ERROR; - - s = strm->state; - strm->adler = adler32(strm->adler, dictionary, dictLength); - - if (length < MIN_MATCH) return Z_OK; - if (length > MAX_DIST(s)) { - length = MAX_DIST(s); -#ifndef USE_DICT_HEAD - dictionary += dictLength - length; /* use the tail of the dictionary */ -#endif - } - zmemcpy(s->window, dictionary, length); - s->strstart = length; - s->block_start = (long)length; - - /* Insert all strings in the hash table (except for the last two bytes). - * s->lookahead stays null, so s->ins_h will be recomputed at the next - * call of fill_window. - */ - s->ins_h = s->window[0]; - UPDATE_HASH(s, s->ins_h, s->window[1]); - for (n = 0; n <= length - MIN_MATCH; n++) { - INSERT_STRING(s, n, hash_head); - } - if (hash_head) hash_head = 0; /* to make compiler happy */ - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflateReset (strm) - z_streamp strm; -{ - deflate_state *s; - - if (strm == Z_NULL || strm->state == Z_NULL || - strm->zalloc == Z_NULL || strm->zfree == Z_NULL) return Z_STREAM_ERROR; - - strm->total_in = strm->total_out = 0; - strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */ - strm->data_type = Z_UNKNOWN; - - s = (deflate_state *)strm->state; - s->pending = 0; - s->pending_out = s->pending_buf; - - if (s->noheader < 0) { - s->noheader = 0; /* was set to -1 by deflate(..., Z_FINISH); */ - } - s->status = s->noheader ? BUSY_STATE : INIT_STATE; - strm->adler = 1; - s->last_flush = Z_NO_FLUSH; - - _tr_init(s); - lm_init(s); - - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflateParams(strm, level, strategy) - z_streamp strm; - int level; - int strategy; -{ - deflate_state *s; - compress_func func; - int err = Z_OK; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - s = strm->state; - - if (level == Z_DEFAULT_COMPRESSION) { - level = 6; - } - if (level < 0 || level > 9 || strategy < 0 || strategy > Z_HUFFMAN_ONLY) { - return Z_STREAM_ERROR; - } - func = configuration_table[s->level].func; - - if (func != configuration_table[level].func && strm->total_in != 0) { - /* Flush the last buffer: */ - err = deflate(strm, Z_PARTIAL_FLUSH); - } - if (s->level != level) { - s->level = level; - s->max_lazy_match = configuration_table[level].max_lazy; - s->good_match = configuration_table[level].good_length; - s->nice_match = configuration_table[level].nice_length; - s->max_chain_length = configuration_table[level].max_chain; - } - s->strategy = strategy; - return err; -} - -/* ========================================================================= - * Put a short in the pending buffer. The 16-bit value is put in MSB order. - * IN assertion: the stream state is correct and there is enough room in - * pending_buf. - */ -local void putShortMSB (s, b) - deflate_state *s; - uInt b; -{ - put_byte(s, (Byte)(b >> 8)); - put_byte(s, (Byte)(b & 0xff)); -} - -/* ========================================================================= - * Flush as much pending output as possible. All deflate() output goes - * through this function so some applications may wish to modify it - * to avoid allocating a large strm->next_out buffer and copying into it. - * (See also read_buf()). - */ -local void flush_pending(strm) - z_streamp strm; -{ - unsigned len = strm->state->pending; - - if (len > strm->avail_out) len = strm->avail_out; - if (len == 0) return; - - zmemcpy(strm->next_out, strm->state->pending_out, len); - strm->next_out += len; - strm->state->pending_out += len; - strm->total_out += len; - strm->avail_out -= len; - strm->state->pending -= len; - if (strm->state->pending == 0) { - strm->state->pending_out = strm->state->pending_buf; - } -} - -/* ========================================================================= */ -int ZEXPORT deflate (strm, flush) - z_streamp strm; - int flush; -{ - int old_flush; /* value of flush param for previous deflate call */ - deflate_state *s; - - if (strm == Z_NULL || strm->state == Z_NULL || - flush > Z_FINISH || flush < 0) { - return Z_STREAM_ERROR; - } - s = strm->state; - - if (strm->next_out == Z_NULL || - (strm->next_in == Z_NULL && strm->avail_in != 0) || - (s->status == FINISH_STATE && flush != Z_FINISH)) { - ERR_RETURN(strm, Z_STREAM_ERROR); - } - if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR); - - s->strm = strm; /* just in case */ - old_flush = s->last_flush; - s->last_flush = flush; - - /* Write the zlib header */ - if (s->status == INIT_STATE) { - - uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8; - uInt level_flags = (s->level-1) >> 1; - - if (level_flags > 3) level_flags = 3; - header |= (level_flags << 6); - if (s->strstart != 0) header |= PRESET_DICT; - header += 31 - (header % 31); - - s->status = BUSY_STATE; - putShortMSB(s, header); - - /* Save the adler32 of the preset dictionary: */ - if (s->strstart != 0) { - putShortMSB(s, (uInt)(strm->adler >> 16)); - putShortMSB(s, (uInt)(strm->adler & 0xffff)); - } - strm->adler = 1L; - } - - /* Flush as much pending output as possible */ - if (s->pending != 0) { - flush_pending(strm); - if (strm->avail_out == 0) { - /* Since avail_out is 0, deflate will be called again with - * more output space, but possibly with both pending and - * avail_in equal to zero. There won't be anything to do, - * but this is not an error situation so make sure we - * return OK instead of BUF_ERROR at next call of deflate: - */ - s->last_flush = -1; - return Z_OK; - } - - /* Make sure there is something to do and avoid duplicate consecutive - * flushes. For repeated and useless calls with Z_FINISH, we keep - * returning Z_STREAM_END instead of Z_BUFF_ERROR. - */ - } else if (strm->avail_in == 0 && flush <= old_flush && - flush != Z_FINISH) { - ERR_RETURN(strm, Z_BUF_ERROR); - } - - /* User must not provide more input after the first FINISH: */ - if (s->status == FINISH_STATE && strm->avail_in != 0) { - ERR_RETURN(strm, Z_BUF_ERROR); - } - - /* Start a new block or continue the current one. - */ - if (strm->avail_in != 0 || s->lookahead != 0 || - (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) { - block_state bstate; - - bstate = (*(configuration_table[s->level].func))(s, flush); - - if (bstate == finish_started || bstate == finish_done) { - s->status = FINISH_STATE; - } - if (bstate == need_more || bstate == finish_started) { - if (strm->avail_out == 0) { - s->last_flush = -1; /* avoid BUF_ERROR next call, see above */ - } - return Z_OK; - /* If flush != Z_NO_FLUSH && avail_out == 0, the next call - * of deflate should use the same flush parameter to make sure - * that the flush is complete. So we don't have to output an - * empty block here, this will be done at next call. This also - * ensures that for a very small output buffer, we emit at most - * one empty block. - */ - } - if (bstate == block_done) { - if (flush == Z_PARTIAL_FLUSH) { - _tr_align(s); - } else { /* FULL_FLUSH or SYNC_FLUSH */ - _tr_stored_block(s, (char*)0, 0L, 0); - /* For a full flush, this empty block will be recognized - * as a special marker by inflate_sync(). - */ - if (flush == Z_FULL_FLUSH) { - CLEAR_HASH(s); /* forget history */ - } - } - flush_pending(strm); - if (strm->avail_out == 0) { - s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */ - return Z_OK; - } - } - } - Assert(strm->avail_out > 0, "bug2"); - - if (flush != Z_FINISH) return Z_OK; - if (s->noheader) return Z_STREAM_END; - - /* Write the zlib trailer (adler32) */ - putShortMSB(s, (uInt)(strm->adler >> 16)); - putShortMSB(s, (uInt)(strm->adler & 0xffff)); - flush_pending(strm); - /* If avail_out is zero, the application will call deflate again - * to flush the rest. - */ - s->noheader = -1; /* write the trailer only once! */ - return s->pending != 0 ? Z_OK : Z_STREAM_END; -} - -/* ========================================================================= */ -int ZEXPORT deflateEnd (strm) - z_streamp strm; -{ - int status; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - - status = strm->state->status; - if (status != INIT_STATE && status != BUSY_STATE && - status != FINISH_STATE) { - return Z_STREAM_ERROR; - } - - /* Deallocate in reverse order of allocations: */ - TRY_FREE(strm, strm->state->pending_buf); - TRY_FREE(strm, strm->state->head); - TRY_FREE(strm, strm->state->prev); - TRY_FREE(strm, strm->state->window); - - ZFREE(strm, strm->state); - strm->state = Z_NULL; - - return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK; -} - -/* ========================================================================= - * Copy the source state to the destination state. - * To simplify the source, this is not supported for 16-bit MSDOS (which - * doesn't have enough memory anyway to duplicate compression states). - */ -int ZEXPORT deflateCopy (dest, source) - z_streamp dest; - z_streamp source; -{ -#ifdef MAXSEG_64K - return Z_STREAM_ERROR; -#else - deflate_state *ds; - deflate_state *ss; - ushf *overlay; - - - if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) { - return Z_STREAM_ERROR; - } - - ss = source->state; - - *dest = *source; - - ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state)); - if (ds == Z_NULL) return Z_MEM_ERROR; - dest->state = (struct internal_state FAR *) ds; - *ds = *ss; - ds->strm = dest; - - ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte)); - ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos)); - ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos)); - overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2); - ds->pending_buf = (uchf *) overlay; - - if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL || - ds->pending_buf == Z_NULL) { - deflateEnd (dest); - return Z_MEM_ERROR; - } - /* following zmemcpy do not work for 16-bit MSDOS */ - zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte)); - zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos)); - zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos)); - zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size); - - ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf); - ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush); - ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize; - - ds->l_desc.dyn_tree = ds->dyn_ltree; - ds->d_desc.dyn_tree = ds->dyn_dtree; - ds->bl_desc.dyn_tree = ds->bl_tree; - - return Z_OK; -#endif -} - -/* =========================================================================== - * Read a new buffer from the current input stream, update the adler32 - * and total number of bytes read. All deflate() input goes through - * this function so some applications may wish to modify it to avoid - * allocating a large strm->next_in buffer and copying from it. - * (See also flush_pending()). - */ -local int read_buf(strm, buf, size) - z_streamp strm; - Bytef *buf; - unsigned size; -{ - unsigned len = strm->avail_in; - - if (len > size) len = size; - if (len == 0) return 0; - - strm->avail_in -= len; - - if (!strm->state->noheader) { - strm->adler = adler32(strm->adler, strm->next_in, len); - } - zmemcpy(buf, strm->next_in, len); - strm->next_in += len; - strm->total_in += len; - - return (int)len; -} - -/* =========================================================================== - * Initialize the "longest match" routines for a new zlib stream - */ -local void lm_init (s) - deflate_state *s; -{ - s->window_size = (ulg)2L*s->w_size; - - CLEAR_HASH(s); - - /* Set the default configuration parameters: - */ - s->max_lazy_match = configuration_table[s->level].max_lazy; - s->good_match = configuration_table[s->level].good_length; - s->nice_match = configuration_table[s->level].nice_length; - s->max_chain_length = configuration_table[s->level].max_chain; - - s->strstart = 0; - s->block_start = 0L; - s->lookahead = 0; - s->match_length = s->prev_length = MIN_MATCH-1; - s->match_available = 0; - s->ins_h = 0; -#ifdef ASMV - match_init(); /* initialize the asm code */ -#endif -} - -/* =========================================================================== - * Set match_start to the longest match starting at the given string and - * return its length. Matches shorter or equal to prev_length are discarded, - * in which case the result is equal to prev_length and match_start is - * garbage. - * IN assertions: cur_match is the head of the hash chain for the current - * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1 - * OUT assertion: the match length is not greater than s->lookahead. - */ -#ifndef ASMV -/* For 80x86 and 680x0, an optimized version will be provided in match.asm or - * match.S. The code will be functionally equivalent. - */ -#ifndef FASTEST -local uInt longest_match(s, cur_match) - deflate_state *s; - IPos cur_match; /* current match */ -{ - unsigned chain_length = s->max_chain_length;/* max hash chain length */ - register Bytef *scan = s->window + s->strstart; /* current string */ - register Bytef *match; /* matched string */ - register int len; /* length of current match */ - int best_len = s->prev_length; /* best match length so far */ - int nice_match = s->nice_match; /* stop if match long enough */ - IPos limit = s->strstart > (IPos)MAX_DIST(s) ? - s->strstart - (IPos)MAX_DIST(s) : NIL; - /* Stop when cur_match becomes <= limit. To simplify the code, - * we prevent matches with the string of window index 0. - */ - Posf *prev = s->prev; - uInt wmask = s->w_mask; - -#ifdef UNALIGNED_OK - /* Compare two bytes at a time. Note: this is not always beneficial. - * Try with and without -DUNALIGNED_OK to check. - */ - register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1; - register ush scan_start = *(ushf*)scan; - register ush scan_end = *(ushf*)(scan+best_len-1); -#else - register Bytef *strend = s->window + s->strstart + MAX_MATCH; - register Byte scan_end1 = scan[best_len-1]; - register Byte scan_end = scan[best_len]; -#endif - - /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. - * It is easy to get rid of this optimization if necessary. - */ - Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); - - /* Do not waste too much time if we already have a good match: */ - if (s->prev_length >= s->good_match) { - chain_length >>= 2; - } - /* Do not look for matches beyond the end of the input. This is necessary - * to make deflate deterministic. - */ - if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; - - Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); - - do { - Assert(cur_match < s->strstart, "no future"); - match = s->window + cur_match; - - /* Skip to next match if the match length cannot increase - * or if the match length is less than 2: - */ -#if (defined(UNALIGNED_OK) && MAX_MATCH == 258) - /* This code assumes sizeof(unsigned short) == 2. Do not use - * UNALIGNED_OK if your compiler uses a different size. - */ - if (*(ushf*)(match+best_len-1) != scan_end || - *(ushf*)match != scan_start) continue; - - /* It is not necessary to compare scan[2] and match[2] since they are - * always equal when the other bytes match, given that the hash keys - * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at - * strstart+3, +5, ... up to strstart+257. We check for insufficient - * lookahead only every 4th comparison; the 128th check will be made - * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is - * necessary to put more guard bytes at the end of the window, or - * to check more often for insufficient lookahead. - */ - Assert(scan[2] == match[2], "scan[2]?"); - scan++, match++; - do { - } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - scan < strend); - /* The funny "do {}" generates better code on most compilers */ - - /* Here, scan <= window+strstart+257 */ - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - if (*scan == *match) scan++; - - len = (MAX_MATCH - 1) - (int)(strend-scan); - scan = strend - (MAX_MATCH-1); - -#else /* UNALIGNED_OK */ - - if (match[best_len] != scan_end || - match[best_len-1] != scan_end1 || - *match != *scan || - *++match != scan[1]) continue; - - /* The check at best_len-1 can be removed because it will be made - * again later. (This heuristic is not always a win.) - * It is not necessary to compare scan[2] and match[2] since they - * are always equal when the other bytes match, given that - * the hash keys are equal and that HASH_BITS >= 8. - */ - scan += 2, match++; - Assert(*scan == *match, "match[2]?"); - - /* We check for insufficient lookahead only every 8th comparison; - * the 256th check will be made at strstart+258. - */ - do { - } while (*++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - scan < strend); - - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - - len = MAX_MATCH - (int)(strend - scan); - scan = strend - MAX_MATCH; - -#endif /* UNALIGNED_OK */ - - if (len > best_len) { - s->match_start = cur_match; - best_len = len; - if (len >= nice_match) break; -#ifdef UNALIGNED_OK - scan_end = *(ushf*)(scan+best_len-1); -#else - scan_end1 = scan[best_len-1]; - scan_end = scan[best_len]; -#endif - } - } while ((cur_match = prev[cur_match & wmask]) > limit - && --chain_length != 0); - - if ((uInt)best_len <= s->lookahead) return (uInt)best_len; - return s->lookahead; -} - -#else /* FASTEST */ -/* --------------------------------------------------------------------------- - * Optimized version for level == 1 only - */ -local uInt longest_match(s, cur_match) - deflate_state *s; - IPos cur_match; /* current match */ -{ - register Bytef *scan = s->window + s->strstart; /* current string */ - register Bytef *match; /* matched string */ - register int len; /* length of current match */ - register Bytef *strend = s->window + s->strstart + MAX_MATCH; - - /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. - * It is easy to get rid of this optimization if necessary. - */ - Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); - - Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); - - Assert(cur_match < s->strstart, "no future"); - - match = s->window + cur_match; - - /* Return failure if the match length is less than 2: - */ - if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1; - - /* The check at best_len-1 can be removed because it will be made - * again later. (This heuristic is not always a win.) - * It is not necessary to compare scan[2] and match[2] since they - * are always equal when the other bytes match, given that - * the hash keys are equal and that HASH_BITS >= 8. - */ - scan += 2, match += 2; - Assert(*scan == *match, "match[2]?"); - - /* We check for insufficient lookahead only every 8th comparison; - * the 256th check will be made at strstart+258. - */ - do { - } while (*++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - scan < strend); - - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - - len = MAX_MATCH - (int)(strend - scan); - - if (len < MIN_MATCH) return MIN_MATCH - 1; - - s->match_start = cur_match; - return len <= s->lookahead ? len : s->lookahead; -} -#endif /* FASTEST */ -#endif /* ASMV */ - -#ifdef DEBUG -/* =========================================================================== - * Check that the match at match_start is indeed a match. - */ -local void check_match(s, start, match, length) - deflate_state *s; - IPos start, match; - int length; -{ - /* check that the match is indeed a match */ - if (zmemcmp(s->window + match, - s->window + start, length) != EQUAL) { - fprintf(stderr, " start %u, match %u, length %d\n", - start, match, length); - do { - fprintf(stderr, "%c%c", s->window[match++], s->window[start++]); - } while (--length != 0); - z_error("invalid match"); - } - if (z_verbose > 1) { - fprintf(stderr,"\\[%d,%d]", start-match, length); - do { putc(s->window[start++], stderr); } while (--length != 0); - } -} -#else -# define check_match(s, start, match, length) -#endif - -/* =========================================================================== - * Fill the window when the lookahead becomes insufficient. - * Updates strstart and lookahead. - * - * IN assertion: lookahead < MIN_LOOKAHEAD - * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD - * At least one byte has been read, or avail_in == 0; reads are - * performed for at least two bytes (required for the zip translate_eol - * option -- not supported here). - */ -local void fill_window(s) - deflate_state *s; -{ - register unsigned n, m; - register Posf *p; - unsigned more; /* Amount of free space at the end of the window. */ - uInt wsize = s->w_size; - - do { - more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart); - - /* Deal with !@#$% 64K limit: */ - if (more == 0 && s->strstart == 0 && s->lookahead == 0) { - more = wsize; - - } else if (more == (unsigned)(-1)) { - /* Very unlikely, but possible on 16 bit machine if strstart == 0 - * and lookahead == 1 (input done one byte at time) - */ - more--; - - /* If the window is almost full and there is insufficient lookahead, - * move the upper half to the lower one to make room in the upper half. - */ - } else if (s->strstart >= wsize+MAX_DIST(s)) { - - zmemcpy(s->window, s->window+wsize, (unsigned)wsize); - s->match_start -= wsize; - s->strstart -= wsize; /* we now have strstart >= MAX_DIST */ - s->block_start -= (long) wsize; - - /* Slide the hash table (could be avoided with 32 bit values - at the expense of memory usage). We slide even when level == 0 - to keep the hash table consistent if we switch back to level > 0 - later. (Using level 0 permanently is not an optimal usage of - zlib, so we don't care about this pathological case.) - */ - n = s->hash_size; - p = &s->head[n]; - do { - m = *--p; - *p = (Pos)(m >= wsize ? m-wsize : NIL); - } while (--n); - - n = wsize; -#ifndef FASTEST - p = &s->prev[n]; - do { - m = *--p; - *p = (Pos)(m >= wsize ? m-wsize : NIL); - /* If n is not on any hash chain, prev[n] is garbage but - * its value will never be used. - */ - } while (--n); -#endif - more += wsize; - } - if (s->strm->avail_in == 0) return; - - /* If there was no sliding: - * strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 && - * more == window_size - lookahead - strstart - * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1) - * => more >= window_size - 2*WSIZE + 2 - * In the BIG_MEM or MMAP case (not yet supported), - * window_size == input_size + MIN_LOOKAHEAD && - * strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD. - * Otherwise, window_size == 2*WSIZE so more >= 2. - * If there was sliding, more >= WSIZE. So in all cases, more >= 2. - */ - Assert(more >= 2, "more < 2"); - - n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more); - s->lookahead += n; - - /* Initialize the hash value now that we have some input: */ - if (s->lookahead >= MIN_MATCH) { - s->ins_h = s->window[s->strstart]; - UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); -#if MIN_MATCH != 3 - Call UPDATE_HASH() MIN_MATCH-3 more times -#endif - } - /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage, - * but this is not important since only literal bytes will be emitted. - */ - - } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0); -} - -/* =========================================================================== - * Flush the current block, with given end-of-file flag. - * IN assertion: strstart is set to the end of the current match. - */ -#define FLUSH_BLOCK_ONLY(s, eof) { \ - _tr_flush_block(s, (s->block_start >= 0L ? \ - (charf *)&s->window[(unsigned)s->block_start] : \ - (charf *)Z_NULL), \ - (ulg)((long)s->strstart - s->block_start), \ - (eof)); \ - s->block_start = s->strstart; \ - flush_pending(s->strm); \ - Tracev((stderr,"[FLUSH]")); \ -} - -/* Same but force premature exit if necessary. */ -#define FLUSH_BLOCK(s, eof) { \ - FLUSH_BLOCK_ONLY(s, eof); \ - if (s->strm->avail_out == 0) return (eof) ? finish_started : need_more; \ -} - -/* =========================================================================== - * Copy without compression as much as possible from the input stream, return - * the current block state. - * This function does not insert new strings in the dictionary since - * uncompressible data is probably not useful. This function is used - * only for the level=0 compression option. - * NOTE: this function should be optimized to avoid extra copying from - * window to pending_buf. - */ -local block_state deflate_stored(s, flush) - deflate_state *s; - int flush; -{ - /* Stored blocks are limited to 0xffff bytes, pending_buf is limited - * to pending_buf_size, and each stored block has a 5 byte header: - */ - ulg max_block_size = 0xffff; - ulg max_start; - - if (max_block_size > s->pending_buf_size - 5) { - max_block_size = s->pending_buf_size - 5; - } - - /* Copy as much as possible from input to output: */ - for (;;) { - /* Fill the window as much as possible: */ - if (s->lookahead <= 1) { - - Assert(s->strstart < s->w_size+MAX_DIST(s) || - s->block_start >= (long)s->w_size, "slide too late"); - - fill_window(s); - if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more; - - if (s->lookahead == 0) break; /* flush the current block */ - } - Assert(s->block_start >= 0L, "block gone"); - - s->strstart += s->lookahead; - s->lookahead = 0; - - /* Emit a stored block if pending_buf will be full: */ - max_start = s->block_start + max_block_size; - if (s->strstart == 0 || (ulg)s->strstart >= max_start) { - /* strstart == 0 is possible when wraparound on 16-bit machine */ - s->lookahead = (uInt)(s->strstart - max_start); - s->strstart = (uInt)max_start; - FLUSH_BLOCK(s, 0); - } - /* Flush if we may have to slide, otherwise block_start may become - * negative and the data will be gone: - */ - if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) { - FLUSH_BLOCK(s, 0); - } - } - FLUSH_BLOCK(s, flush == Z_FINISH); - return flush == Z_FINISH ? finish_done : block_done; -} - -/* =========================================================================== - * Compress as much as possible from the input stream, return the current - * block state. - * This function does not perform lazy evaluation of matches and inserts - * new strings in the dictionary only for unmatched strings or for short - * matches. It is used only for the fast compression options. - */ -local block_state deflate_fast(s, flush) - deflate_state *s; - int flush; -{ - IPos hash_head = NIL; /* head of the hash chain */ - int bflush; /* set if current block must be flushed */ - - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the next match, plus MIN_MATCH bytes to insert the - * string following the next match. - */ - if (s->lookahead < MIN_LOOKAHEAD) { - fill_window(s); - if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { - return need_more; - } - if (s->lookahead == 0) break; /* flush the current block */ - } - - /* Insert the string window[strstart .. strstart+2] in the - * dictionary, and set hash_head to the head of the hash chain: - */ - if (s->lookahead >= MIN_MATCH) { - INSERT_STRING(s, s->strstart, hash_head); - } - - /* Find the longest match, discarding those <= prev_length. - * At this point we have always match_length < MIN_MATCH - */ - if (hash_head != NIL && s->strstart - hash_head <= MAX_DIST(s)) { - /* To simplify the code, we prevent matches with the string - * of window index 0 (in particular we have to avoid a match - * of the string with itself at the start of the input file). - */ - if (s->strategy != Z_HUFFMAN_ONLY) { - s->match_length = longest_match (s, hash_head); - } - /* longest_match() sets match_start */ - } - if (s->match_length >= MIN_MATCH) { - check_match(s, s->strstart, s->match_start, s->match_length); - - _tr_tally_dist(s, s->strstart - s->match_start, - s->match_length - MIN_MATCH, bflush); - - s->lookahead -= s->match_length; - - /* Insert new strings in the hash table only if the match length - * is not too large. This saves time but degrades compression. - */ -#ifndef FASTEST - if (s->match_length <= s->max_insert_length && - s->lookahead >= MIN_MATCH) { - s->match_length--; /* string at strstart already in hash table */ - do { - s->strstart++; - INSERT_STRING(s, s->strstart, hash_head); - /* strstart never exceeds WSIZE-MAX_MATCH, so there are - * always MIN_MATCH bytes ahead. - */ - } while (--s->match_length != 0); - s->strstart++; - } else -#endif - { - s->strstart += s->match_length; - s->match_length = 0; - s->ins_h = s->window[s->strstart]; - UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); -#if MIN_MATCH != 3 - Call UPDATE_HASH() MIN_MATCH-3 more times -#endif - /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not - * matter since it will be recomputed at next deflate call. - */ - } - } else { - /* No match, output a literal byte */ - Tracevv((stderr,"%c", s->window[s->strstart])); - _tr_tally_lit (s, s->window[s->strstart], bflush); - s->lookahead--; - s->strstart++; - } - if (bflush) FLUSH_BLOCK(s, 0); - } - FLUSH_BLOCK(s, flush == Z_FINISH); - return flush == Z_FINISH ? finish_done : block_done; -} - -/* =========================================================================== - * Same as above, but achieves better compression. We use a lazy - * evaluation for matches: a match is finally adopted only if there is - * no better match at the next window position. - */ -local block_state deflate_slow(s, flush) - deflate_state *s; - int flush; -{ - IPos hash_head = NIL; /* head of hash chain */ - int bflush; /* set if current block must be flushed */ - - /* Process the input block. */ - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the next match, plus MIN_MATCH bytes to insert the - * string following the next match. - */ - if (s->lookahead < MIN_LOOKAHEAD) { - fill_window(s); - if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { - return need_more; - } - if (s->lookahead == 0) break; /* flush the current block */ - } - - /* Insert the string window[strstart .. strstart+2] in the - * dictionary, and set hash_head to the head of the hash chain: - */ - if (s->lookahead >= MIN_MATCH) { - INSERT_STRING(s, s->strstart, hash_head); - } - - /* Find the longest match, discarding those <= prev_length. - */ - s->prev_length = s->match_length, s->prev_match = s->match_start; - s->match_length = MIN_MATCH-1; - - if (hash_head != NIL && s->prev_length < s->max_lazy_match && - s->strstart - hash_head <= MAX_DIST(s)) { - /* To simplify the code, we prevent matches with the string - * of window index 0 (in particular we have to avoid a match - * of the string with itself at the start of the input file). - */ - if (s->strategy != Z_HUFFMAN_ONLY) { - s->match_length = longest_match (s, hash_head); - } - /* longest_match() sets match_start */ - - if (s->match_length <= 5 && (s->strategy == Z_FILTERED || - (s->match_length == MIN_MATCH && - s->strstart - s->match_start > TOO_FAR))) { - - /* If prev_match is also MIN_MATCH, match_start is garbage - * but we will ignore the current match anyway. - */ - s->match_length = MIN_MATCH-1; - } - } - /* If there was a match at the previous step and the current - * match is not better, output the previous match: - */ - if (s->prev_length >= MIN_MATCH && s->match_length <= s->prev_length) { - uInt max_insert = s->strstart + s->lookahead - MIN_MATCH; - /* Do not insert strings in hash table beyond this. */ - - check_match(s, s->strstart-1, s->prev_match, s->prev_length); - - _tr_tally_dist(s, s->strstart -1 - s->prev_match, - s->prev_length - MIN_MATCH, bflush); - - /* Insert in hash table all strings up to the end of the match. - * strstart-1 and strstart are already inserted. If there is not - * enough lookahead, the last two strings are not inserted in - * the hash table. - */ - s->lookahead -= s->prev_length-1; - s->prev_length -= 2; - do { - if (++s->strstart <= max_insert) { - INSERT_STRING(s, s->strstart, hash_head); - } - } while (--s->prev_length != 0); - s->match_available = 0; - s->match_length = MIN_MATCH-1; - s->strstart++; - - if (bflush) FLUSH_BLOCK(s, 0); - - } else if (s->match_available) { - /* If there was no match at the previous position, output a - * single literal. If there was a match but the current match - * is longer, truncate the previous match to a single literal. - */ - Tracevv((stderr,"%c", s->window[s->strstart-1])); - _tr_tally_lit(s, s->window[s->strstart-1], bflush); - if (bflush) { - FLUSH_BLOCK_ONLY(s, 0); - } - s->strstart++; - s->lookahead--; - if (s->strm->avail_out == 0) return need_more; - } else { - /* There is no previous match to compare with, wait for - * the next step to decide. - */ - s->match_available = 1; - s->strstart++; - s->lookahead--; - } - } - Assert (flush != Z_NO_FLUSH, "no flush?"); - if (s->match_available) { - Tracevv((stderr,"%c", s->window[s->strstart-1])); - _tr_tally_lit(s, s->window[s->strstart-1], bflush); - s->match_available = 0; - } - FLUSH_BLOCK(s, flush == Z_FINISH); - return flush == Z_FINISH ? finish_done : block_done; -} diff --git a/collects/plot/src/all/deflate.h b/collects/plot/src/all/deflate.h deleted file mode 100644 index 69c8713a4a..0000000000 --- a/collects/plot/src/all/deflate.h +++ /dev/null @@ -1,318 +0,0 @@ -/* deflate.h -- internal compression state - * Copyright (C) 1995-2002 Jean-loup Gailly - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* @(#) $Id: deflate.h,v 1.1 2004/03/01 20:54:46 cozmic Exp $ */ - -#ifndef _DEFLATE_H -#define _DEFLATE_H - -#include "zutil.h" - -/* =========================================================================== - * Internal compression state. - */ - -#define LENGTH_CODES 29 -/* number of length codes, not counting the special END_BLOCK code */ - -#define LITERALS 256 -/* number of literal bytes 0..255 */ - -#define L_CODES (LITERALS+1+LENGTH_CODES) -/* number of Literal or Length codes, including the END_BLOCK code */ - -#define D_CODES 30 -/* number of distance codes */ - -#define BL_CODES 19 -/* number of codes used to transfer the bit lengths */ - -#define HEAP_SIZE (2*L_CODES+1) -/* maximum heap size */ - -#define MAX_BITS 15 -/* All codes must not exceed MAX_BITS bits */ - -#define INIT_STATE 42 -#define BUSY_STATE 113 -#define FINISH_STATE 666 -/* Stream status */ - - -/* Data structure describing a single value and its code string. */ -typedef struct ct_data_s { - union { - ush freq; /* frequency count */ - ush code; /* bit string */ - } fc; - union { - ush dad; /* father node in Huffman tree */ - ush len; /* length of bit string */ - } dl; -} FAR ct_data; - -#define Freq fc.freq -#define Code fc.code -#define Dad dl.dad -#define Len dl.len - -typedef struct static_tree_desc_s static_tree_desc; - -typedef struct tree_desc_s { - ct_data *dyn_tree; /* the dynamic tree */ - int max_code; /* largest code with non zero frequency */ - static_tree_desc *stat_desc; /* the corresponding static tree */ -} FAR tree_desc; - -typedef ush Pos; -typedef Pos FAR Posf; -typedef unsigned IPos; - -/* A Pos is an index in the character window. We use short instead of int to - * save space in the various tables. IPos is used only for parameter passing. - */ - -typedef struct internal_state { - z_streamp strm; /* pointer back to this zlib stream */ - int status; /* as the name implies */ - Bytef *pending_buf; /* output still pending */ - ulg pending_buf_size; /* size of pending_buf */ - Bytef *pending_out; /* next pending byte to output to the stream */ - int pending; /* nb of bytes in the pending buffer */ - int noheader; /* suppress zlib header and adler32 */ - Byte data_type; /* UNKNOWN, BINARY or ASCII */ - Byte method; /* STORED (for zip only) or DEFLATED */ - int last_flush; /* value of flush param for previous deflate call */ - - /* used by deflate.c: */ - - uInt w_size; /* LZ77 window size (32K by default) */ - uInt w_bits; /* log2(w_size) (8..16) */ - uInt w_mask; /* w_size - 1 */ - - Bytef *window; - /* Sliding window. Input bytes are read into the second half of the window, - * and move to the first half later to keep a dictionary of at least wSize - * bytes. With this organization, matches are limited to a distance of - * wSize-MAX_MATCH bytes, but this ensures that IO is always - * performed with a length multiple of the block size. Also, it limits - * the window size to 64K, which is quite useful on MSDOS. - * To do: use the user input buffer as sliding window. - */ - - ulg window_size; - /* Actual size of window: 2*wSize, except when the user input buffer - * is directly used as sliding window. - */ - - Posf *prev; - /* Link to older string with same hash index. To limit the size of this - * array to 64K, this link is maintained only for the last 32K strings. - * An index in this array is thus a window index modulo 32K. - */ - - Posf *head; /* Heads of the hash chains or NIL. */ - - uInt ins_h; /* hash index of string to be inserted */ - uInt hash_size; /* number of elements in hash table */ - uInt hash_bits; /* log2(hash_size) */ - uInt hash_mask; /* hash_size-1 */ - - uInt hash_shift; - /* Number of bits by which ins_h must be shifted at each input - * step. It must be such that after MIN_MATCH steps, the oldest - * byte no longer takes part in the hash key, that is: - * hash_shift * MIN_MATCH >= hash_bits - */ - - long block_start; - /* Window position at the beginning of the current output block. Gets - * negative when the window is moved backwards. - */ - - uInt match_length; /* length of best match */ - IPos prev_match; /* previous match */ - int match_available; /* set if previous match exists */ - uInt strstart; /* start of string to insert */ - uInt match_start; /* start of matching string */ - uInt lookahead; /* number of valid bytes ahead in window */ - - uInt prev_length; - /* Length of the best match at previous step. Matches not greater than this - * are discarded. This is used in the lazy match evaluation. - */ - - uInt max_chain_length; - /* To speed up deflation, hash chains are never searched beyond this - * length. A higher limit improves compression ratio but degrades the - * speed. - */ - - uInt max_lazy_match; - /* Attempt to find a better match only when the current match is strictly - * smaller than this value. This mechanism is used only for compression - * levels >= 4. - */ -# define max_insert_length max_lazy_match - /* Insert new strings in the hash table only if the match length is not - * greater than this length. This saves time but degrades compression. - * max_insert_length is used only for compression levels <= 3. - */ - - int level; /* compression level (1..9) */ - int strategy; /* favor or force Huffman coding*/ - - uInt good_match; - /* Use a faster search when the previous match is longer than this */ - - int nice_match; /* Stop searching when current match exceeds this */ - - /* used by trees.c: */ - /* Didn't use ct_data typedef below to supress compiler warning */ - struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */ - struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */ - struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */ - - struct tree_desc_s l_desc; /* desc. for literal tree */ - struct tree_desc_s d_desc; /* desc. for distance tree */ - struct tree_desc_s bl_desc; /* desc. for bit length tree */ - - ush bl_count[MAX_BITS+1]; - /* number of codes at each bit length for an optimal tree */ - - int heap[2*L_CODES+1]; /* heap used to build the Huffman trees */ - int heap_len; /* number of elements in the heap */ - int heap_max; /* element of largest frequency */ - /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used. - * The same heap array is used to build all trees. - */ - - uch depth[2*L_CODES+1]; - /* Depth of each subtree used as tie breaker for trees of equal frequency - */ - - uchf *l_buf; /* buffer for literals or lengths */ - - uInt lit_bufsize; - /* Size of match buffer for literals/lengths. There are 4 reasons for - * limiting lit_bufsize to 64K: - * - frequencies can be kept in 16 bit counters - * - if compression is not successful for the first block, all input - * data is still in the window so we can still emit a stored block even - * when input comes from standard input. (This can also be done for - * all blocks if lit_bufsize is not greater than 32K.) - * - if compression is not successful for a file smaller than 64K, we can - * even emit a stored file instead of a stored block (saving 5 bytes). - * This is applicable only for zip (not gzip or zlib). - * - creating new Huffman trees less frequently may not provide fast - * adaptation to changes in the input data statistics. (Take for - * example a binary file with poorly compressible code followed by - * a highly compressible string table.) Smaller buffer sizes give - * fast adaptation but have of course the overhead of transmitting - * trees more frequently. - * - I can't count above 4 - */ - - uInt last_lit; /* running index in l_buf */ - - ushf *d_buf; - /* Buffer for distances. To simplify the code, d_buf and l_buf have - * the same number of elements. To use different lengths, an extra flag - * array would be necessary. - */ - - ulg opt_len; /* bit length of current block with optimal trees */ - ulg static_len; /* bit length of current block with static trees */ - uInt matches; /* number of string matches in current block */ - int last_eob_len; /* bit length of EOB code for last block */ - -#ifdef DEBUG - ulg compressed_len; /* total bit length of compressed file mod 2^32 */ - ulg bits_sent; /* bit length of compressed data sent mod 2^32 */ -#endif - - ush bi_buf; - /* Output buffer. bits are inserted starting at the bottom (least - * significant bits). - */ - int bi_valid; - /* Number of valid bits in bi_buf. All bits above the last valid bit - * are always zero. - */ - -} FAR deflate_state; - -/* Output a byte on the stream. - * IN assertion: there is enough room in pending_buf. - */ -#define put_byte(s, c) {s->pending_buf[s->pending++] = (c);} - - -#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) -/* Minimum amount of lookahead, except at the end of the input file. - * See deflate.c for comments about the MIN_MATCH+1. - */ - -#define MAX_DIST(s) ((s)->w_size-MIN_LOOKAHEAD) -/* In order to simplify the code, particularly on 16 bit machines, match - * distances are limited to MAX_DIST instead of WSIZE. - */ - - /* in trees.c */ -void _tr_init OF((deflate_state *s)); -int _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc)); -void _tr_flush_block OF((deflate_state *s, charf *buf, ulg stored_len, - int eof)); -void _tr_align OF((deflate_state *s)); -void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len, - int eof)); - -#define d_code(dist) \ - ((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)]) -/* Mapping from a distance to a distance code. dist is the distance - 1 and - * must not have side effects. _dist_code[256] and _dist_code[257] are never - * used. - */ - -#ifndef DEBUG -/* Inline versions of _tr_tally for speed: */ - -#if defined(GEN_TREES_H) || !defined(STDC) - extern uch _length_code[]; - extern uch _dist_code[]; -#else - extern const uch _length_code[]; - extern const uch _dist_code[]; -#endif - -# define _tr_tally_lit(s, c, flush) \ - { uch cc = (c); \ - s->d_buf[s->last_lit] = 0; \ - s->l_buf[s->last_lit++] = cc; \ - s->dyn_ltree[cc].Freq++; \ - flush = (s->last_lit == s->lit_bufsize-1); \ - } -# define _tr_tally_dist(s, distance, length, flush) \ - { uch len = (length); \ - ush dist = (distance); \ - s->d_buf[s->last_lit] = dist; \ - s->l_buf[s->last_lit++] = len; \ - dist--; \ - s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \ - s->dyn_dtree[d_code(dist)].Freq++; \ - flush = (s->last_lit == s->lit_bufsize-1); \ - } -#else -# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c) -# define _tr_tally_dist(s, distance, length, flush) \ - flush = _tr_tally(s, distance, length) -#endif - -#endif diff --git a/collects/plot/src/all/gd.c b/collects/plot/src/all/gd.c deleted file mode 100644 index 2e404e394e..0000000000 --- a/collects/plot/src/all/gd.c +++ /dev/null @@ -1,3114 +0,0 @@ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include -/* 2.03: don't include zlib here or we can't build without PNG */ -#include "gd.h" -#include "gdhelpers.h" - -/* 2.0.12: this now checks the clipping rectangle */ -#define gdImageBoundsSafeMacro(im, x, y) (!((((y) < (im)->cy1) || ((y) > (im)->cy2)) || (((x) < (im)->cx1) || ((x) > (im)->cx2)))) - -#ifdef _OSD_POSIX /* BS2000 uses the EBCDIC char set instead of ASCII */ -#define CHARSET_EBCDIC -#define __attribute__(any) /*nothing */ -#endif -/*_OSD_POSIX*/ - -#ifndef CHARSET_EBCDIC -#define ASC(ch) ch -#else /*CHARSET_EBCDIC */ -#define ASC(ch) gd_toascii[(unsigned char)ch] -static const unsigned char gd_toascii[256] = { -/*00 */ 0x00, 0x01, 0x02, 0x03, 0x85, 0x09, 0x86, 0x7f, - 0x87, 0x8d, 0x8e, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /*................ */ -/*10 */ 0x10, 0x11, 0x12, 0x13, 0x8f, 0x0a, 0x08, 0x97, - 0x18, 0x19, 0x9c, 0x9d, 0x1c, 0x1d, 0x1e, 0x1f, /*................ */ -/*20 */ 0x80, 0x81, 0x82, 0x83, 0x84, 0x92, 0x17, 0x1b, - 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x05, 0x06, 0x07, /*................ */ -/*30 */ 0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04, - 0x98, 0x99, 0x9a, 0x9b, 0x14, 0x15, 0x9e, 0x1a, /*................ */ -/*40 */ 0x20, 0xa0, 0xe2, 0xe4, 0xe0, 0xe1, 0xe3, 0xe5, - 0xe7, 0xf1, 0x60, 0x2e, 0x3c, 0x28, 0x2b, 0x7c, /* .........`.<(+| */ -/*50 */ 0x26, 0xe9, 0xea, 0xeb, 0xe8, 0xed, 0xee, 0xef, - 0xec, 0xdf, 0x21, 0x24, 0x2a, 0x29, 0x3b, 0x9f, /*&.........!$*);. */ -/*60 */ 0x2d, 0x2f, 0xc2, 0xc4, 0xc0, 0xc1, 0xc3, 0xc5, - 0xc7, 0xd1, 0x5e, 0x2c, 0x25, 0x5f, 0x3e, 0x3f, -/*-/........^,%_>?*/ -/*70 */ 0xf8, 0xc9, 0xca, 0xcb, 0xc8, 0xcd, 0xce, 0xcf, - 0xcc, 0xa8, 0x3a, 0x23, 0x40, 0x27, 0x3d, 0x22, /*..........:#@'=" */ -/*80 */ 0xd8, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, - 0x68, 0x69, 0xab, 0xbb, 0xf0, 0xfd, 0xfe, 0xb1, /*.abcdefghi...... */ -/*90 */ 0xb0, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, - 0x71, 0x72, 0xaa, 0xba, 0xe6, 0xb8, 0xc6, 0xa4, /*.jklmnopqr...... */ -/*a0 */ 0xb5, 0xaf, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, - 0x79, 0x7a, 0xa1, 0xbf, 0xd0, 0xdd, 0xde, 0xae, /*..stuvwxyz...... */ -/*b0 */ 0xa2, 0xa3, 0xa5, 0xb7, 0xa9, 0xa7, 0xb6, 0xbc, - 0xbd, 0xbe, 0xac, 0x5b, 0x5c, 0x5d, 0xb4, 0xd7, /*...........[\].. */ -/*c0 */ 0xf9, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, - 0x48, 0x49, 0xad, 0xf4, 0xf6, 0xf2, 0xf3, 0xf5, /*.ABCDEFGHI...... */ -/*d0 */ 0xa6, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, - 0x51, 0x52, 0xb9, 0xfb, 0xfc, 0xdb, 0xfa, 0xff, /*.JKLMNOPQR...... */ -/*e0 */ 0xd9, 0xf7, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, - 0x59, 0x5a, 0xb2, 0xd4, 0xd6, 0xd2, 0xd3, 0xd5, /*..STUVWXYZ...... */ -/*f0 */ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, - 0x38, 0x39, 0xb3, 0x7b, 0xdc, 0x7d, 0xda, 0x7e /*0123456789.{.}.~ */ -}; -#endif /*CHARSET_EBCDIC */ - -extern int gdCosT[]; -extern int gdSinT[]; - -static void gdImageBrushApply (gdImagePtr im, int x, int y); -static void gdImageTileApply (gdImagePtr im, int x, int y); -static void gdImageAntiAliasedApply (gdImagePtr im, int x, int y); -static int gdImageGetTrueColorPixel (gdImagePtr im, int x, int y); - -gdImagePtr -gdImageCreate (int sx, int sy) -{ - int i; - gdImagePtr im; - im = (gdImage *) gdMalloc (sizeof (gdImage)); - memset (im, 0, sizeof (gdImage)); - /* Row-major ever since gd 1.3 */ - im->pixels = (unsigned char **) gdMalloc (sizeof (unsigned char *) * sy); - im->AA_opacity = - (unsigned char **) gdMalloc (sizeof (unsigned char *) * sy); - im->polyInts = 0; - im->polyAllocated = 0; - im->brush = 0; - im->tile = 0; - im->style = 0; - for (i = 0; (i < sy); i++) - { - /* Row-major ever since gd 1.3 */ - im->pixels[i] = (unsigned char *) gdCalloc (sx, sizeof (unsigned char)); - im->AA_opacity[i] = - (unsigned char *) gdCalloc (sx, sizeof (unsigned char)); - } - im->sx = sx; - im->sy = sy; - im->colorsTotal = 0; - im->transparent = (-1); - im->interlace = 0; - im->thick = 1; - im->AA = 0; - im->AA_polygon = 0; - for (i = 0; (i < gdMaxColors); i++) - { - im->open[i] = 1; - im->red[i] = 0; - im->green[i] = 0; - im->blue[i] = 0; - }; - im->trueColor = 0; - im->tpixels = 0; - im->cx1 = 0; - im->cy1 = 0; - im->cx2 = im->sx - 1; - im->cy2 = im->sy - 1; - return im; -} - -gdImagePtr -gdImageCreateTrueColor (int sx, int sy) -{ - int i; - gdImagePtr im; - im = (gdImage *) gdMalloc (sizeof (gdImage)); - memset (im, 0, sizeof (gdImage)); - im->tpixels = (int **) gdMalloc (sizeof (int *) * sy); - im->AA_opacity = - (unsigned char **) gdMalloc (sizeof (unsigned char *) * sy); - im->polyInts = 0; - im->polyAllocated = 0; - im->brush = 0; - im->tile = 0; - im->style = 0; - for (i = 0; (i < sy); i++) - { - im->tpixels[i] = (int *) gdCalloc (sx, sizeof (int)); - im->AA_opacity[i] = - (unsigned char *) gdCalloc (sx, sizeof (unsigned char)); - } - im->sx = sx; - im->sy = sy; - im->transparent = (-1); - im->interlace = 0; - im->trueColor = 1; - /* 2.0.2: alpha blending is now on by default, and saving of alpha is - off by default. This allows font antialiasing to work as expected - on the first try in JPEGs -- quite important -- and also allows - for smaller PNGs when saving of alpha channel is not really - desired, which it usually isn't! */ - im->saveAlphaFlag = 0; - im->alphaBlendingFlag = 1; - im->thick = 1; - im->AA = 0; - im->AA_polygon = 0; - im->cx1 = 0; - im->cy1 = 0; - im->cx2 = im->sx - 1; - im->cy2 = im->sy - 1; - return im; -} - -void -gdImageDestroy (gdImagePtr im) -{ - int i; - if (im->pixels) - { - for (i = 0; (i < im->sy); i++) - { - gdFree (im->pixels[i]); - } - gdFree (im->pixels); - } - if (im->tpixels) - { - for (i = 0; (i < im->sy); i++) - { - gdFree (im->tpixels[i]); - } - gdFree (im->tpixels); - } - if (im->AA_opacity) - { - for (i = 0; (i < im->sy); i++) - { - gdFree (im->AA_opacity[i]); - } - gdFree (im->AA_opacity); - } - if (im->polyInts) - { - gdFree (im->polyInts); - } - if (im->style) - { - gdFree (im->style); - } - gdFree (im); -} - -int -gdImageColorClosest (gdImagePtr im, int r, int g, int b) -{ - return gdImageColorClosestAlpha (im, r, g, b, gdAlphaOpaque); -} - -int -gdImageColorClosestAlpha (gdImagePtr im, int r, int g, int b, int a) -{ - int i; - long rd, gd, bd, ad; - int ct = (-1); - int first = 1; - long mindist = 0; - if (im->trueColor) - { - return gdTrueColorAlpha (r, g, b, a); - } - for (i = 0; (i < (im->colorsTotal)); i++) - { - long dist; - if (im->open[i]) - { - continue; - } - rd = (im->red[i] - r); - gd = (im->green[i] - g); - bd = (im->blue[i] - b); - /* gd 2.02: whoops, was - b (thanks to David Marwood) */ - ad = (im->blue[i] - a); - dist = rd * rd + gd * gd + bd * bd + ad * ad; - if (first || (dist < mindist)) - { - mindist = dist; - ct = i; - first = 0; - } - } - return ct; -} - -/* This code is taken from http://www.acm.org/jgt/papers/SmithLyons96/hwb_rgb.html, an article - * on colour conversion to/from RBG and HWB colour systems. - * It has been modified to return the converted value as a * parameter. - */ - -#define RETURN_HWB(h, w, b) {HWB->H = h; HWB->W = w; HWB->B = b; return HWB;} -#define RETURN_RGB(r, g, b) {RGB->R = r; RGB->G = g; RGB->B = b; return RGB;} -#define HWB_UNDEFINED -1 -#define SETUP_RGB(s, r, g, b) {s.R = r/255.0; s.G = g/255.0; s.B = b/255.0;} - -#define MIN(a,b) ((a)<(b)?(a):(b)) -#define MIN3(a,b,c) ((a)<(b)?(MIN(a,c)):(MIN(b,c))) -#define MAX(a,b) ((a)<(b)?(b):(a)) -#define MAX3(a,b,c) ((a)<(b)?(MAX(b,c)):(MAX(a,c))) - - -/* - * Theoretically, hue 0 (pure red) is identical to hue 6 in these transforms. Pure - * red always maps to 6 in this implementation. Therefore UNDEFINED can be - * defined as 0 in situations where only unsigned numbers are desired. - */ -typedef struct -{ - float R, G, B; -} -RGBType; -typedef struct -{ - float H, W, B; -} -HWBType; - -static HWBType * -RGB_to_HWB (RGBType RGB, HWBType * HWB) -{ - - /* - * RGB are each on [0, 1]. W and B are returned on [0, 1] and H is - * returned on [0, 6]. Exception: H is returned UNDEFINED if W == 1 - B. - */ - - float R = RGB.R, G = RGB.G, B = RGB.B, w, v, b, f; - int i; - - w = MIN3 (R, G, B); - v = MAX3 (R, G, B); - b = 1 - v; - if (v == w) - RETURN_HWB (HWB_UNDEFINED, w, b); - f = (R == w) ? G - B : ((G == w) ? B - R : R - G); - i = (R == w) ? 3 : ((G == w) ? 5 : 1); - RETURN_HWB (i - f / (v - w), w, b); - -} - -static float -HWB_Diff (int r1, int g1, int b1, int r2, int g2, int b2) -{ - RGBType RGB1, RGB2; - HWBType HWB1, HWB2; - float diff; - - SETUP_RGB (RGB1, r1, g1, b1); - SETUP_RGB (RGB2, r2, g2, b2); - - RGB_to_HWB (RGB1, &HWB1); - RGB_to_HWB (RGB2, &HWB2); - - /* - * I made this bit up; it seems to produce OK results, and it is certainly - * more visually correct than the current RGB metric. (PJW) - */ - - if ((HWB1.H == HWB_UNDEFINED) || (HWB2.H == HWB_UNDEFINED)) - { - diff = 0; /* Undefined hues always match... */ - } - else - { - diff = abs (HWB1.H - HWB2.H); - if (diff > 3) - { - diff = 6 - diff; /* Remember, it's a colour circle */ - } - } - - diff = - diff * diff + (HWB1.W - HWB2.W) * (HWB1.W - HWB2.W) + (HWB1.B - - HWB2.B) * (HWB1.B - - HWB2.B); - - return diff; -} - - -#if 0 -/* - * This is not actually used, but is here for completeness, in case someone wants to - * use the HWB stuff for anything else... - */ -static RGBType * -HWB_to_RGB (HWBType HWB, RGBType * RGB) -{ - - /* - * H is given on [0, 6] or UNDEFINED. W and B are given on [0, 1]. - * RGB are each returned on [0, 1]. - */ - - float h = HWB.H, w = HWB.W, b = HWB.B, v, n, f; - int i; - - v = 1 - b; - if (h == HWB_UNDEFINED) - RETURN_RGB (v, v, v); - i = floor (h); - f = h - i; - if (i & 1) - f = 1 - f; /* if i is odd */ - n = w + f * (v - w); /* linear interpolation between w and v */ - switch (i) - { - case 6: - case 0: - RETURN_RGB (v, n, w); - case 1: - RETURN_RGB (n, v, w); - case 2: - RETURN_RGB (w, v, n); - case 3: - RETURN_RGB (w, n, v); - case 4: - RETURN_RGB (n, w, v); - case 5: - RETURN_RGB (v, w, n); - } - - return RGB; - -} -#endif - -int -gdImageColorClosestHWB (gdImagePtr im, int r, int g, int b) -{ - int i; - /* long rd, gd, bd; */ - int ct = (-1); - int first = 1; - float mindist = 0; - if (im->trueColor) - { - return gdTrueColor (r, g, b); - } - for (i = 0; (i < (im->colorsTotal)); i++) - { - float dist; - if (im->open[i]) - { - continue; - } - dist = HWB_Diff (im->red[i], im->green[i], im->blue[i], r, g, b); - if (first || (dist < mindist)) - { - mindist = dist; - ct = i; - first = 0; - } - } - return ct; -} - -int -gdImageColorExact (gdImagePtr im, int r, int g, int b) -{ - return gdImageColorExactAlpha (im, r, g, b, gdAlphaOpaque); -} - -int -gdImageColorExactAlpha (gdImagePtr im, int r, int g, int b, int a) -{ - int i; - if (im->trueColor) - { - return gdTrueColorAlpha (r, g, b, a); - } - for (i = 0; (i < (im->colorsTotal)); i++) - { - if (im->open[i]) - { - continue; - } - if ((im->red[i] == r) && - (im->green[i] == g) && (im->blue[i] == b) && (im->alpha[i] == a)) - { - return i; - } - } - return -1; -} - -int -gdImageColorAllocate (gdImagePtr im, int r, int g, int b) -{ - return gdImageColorAllocateAlpha (im, r, g, b, gdAlphaOpaque); -} - -int -gdImageColorAllocateAlpha (gdImagePtr im, int r, int g, int b, int a) -{ - int i; - int ct = (-1); - if (im->trueColor) - { - return gdTrueColorAlpha (r, g, b, a); - } - for (i = 0; (i < (im->colorsTotal)); i++) - { - if (im->open[i]) - { - ct = i; - break; - } - } - if (ct == (-1)) - { - ct = im->colorsTotal; - if (ct == gdMaxColors) - { - return -1; - } - im->colorsTotal++; - } - im->red[ct] = r; - im->green[ct] = g; - im->blue[ct] = b; - im->alpha[ct] = a; - im->open[ct] = 0; - return ct; -} - -/* - * gdImageColorResolve is an alternative for the code fragment: - * - * if ((color=gdImageColorExact(im,R,G,B)) < 0) - * if ((color=gdImageColorAllocate(im,R,G,B)) < 0) - * color=gdImageColorClosest(im,R,G,B); - * - * in a single function. Its advantage is that it is guaranteed to - * return a color index in one search over the color table. - */ - -int -gdImageColorResolve (gdImagePtr im, int r, int g, int b) -{ - return gdImageColorResolveAlpha (im, r, g, b, gdAlphaOpaque); -} - -int -gdImageColorResolveAlpha (gdImagePtr im, int r, int g, int b, int a) -{ - int c; - int ct = -1; - int op = -1; - long rd, gd, bd, ad, dist; - long mindist = 4 * 255 * 255; /* init to max poss dist */ - if (im->trueColor) - { - return gdTrueColorAlpha (r, g, b, a); - } - - for (c = 0; c < im->colorsTotal; c++) - { - if (im->open[c]) - { - op = c; /* Save open slot */ - continue; /* Color not in use */ - } - if (c == im->transparent) - { - /* don't ever resolve to the color that has - * been designated as the transparent color */ - continue; - } - rd = (long) (im->red[c] - r); - gd = (long) (im->green[c] - g); - bd = (long) (im->blue[c] - b); - ad = (long) (im->alpha[c] - a); - dist = rd * rd + gd * gd + bd * bd + ad * ad; - if (dist < mindist) - { - if (dist == 0) - { - return c; /* Return exact match color */ - } - mindist = dist; - ct = c; - } - } - /* no exact match. We now know closest, but first try to allocate exact */ - if (op == -1) - { - op = im->colorsTotal; - if (op == gdMaxColors) - { /* No room for more colors */ - return ct; /* Return closest available color */ - } - im->colorsTotal++; - } - im->red[op] = r; - im->green[op] = g; - im->blue[op] = b; - im->alpha[op] = a; - im->open[op] = 0; - return op; /* Return newly allocated color */ -} - -void -gdImageColorDeallocate (gdImagePtr im, int color) -{ - if (im->trueColor) - { - return; - } - /* Mark it open. */ - im->open[color] = 1; -} - -void -gdImageColorTransparent (gdImagePtr im, int color) -{ - if (!im->trueColor) - { - if (im->transparent != -1) - { - im->alpha[im->transparent] = gdAlphaOpaque; - } - if (color != -1) - { - im->alpha[color] = gdAlphaTransparent; - } - } - im->transparent = color; -} - -void -gdImagePaletteCopy (gdImagePtr to, gdImagePtr from) -{ - int i; - int x, y, p; - int xlate[256]; - if (to->trueColor) - { - return; - } - if (from->trueColor) - { - return; - } - - for (i = 0; i < 256; i++) - { - xlate[i] = -1; - }; - - for (x = 0; x < (to->sx); x++) - { - for (y = 0; y < (to->sy); y++) - { - p = gdImageGetPixel (to, x, y); - if (xlate[p] == -1) - { - /* This ought to use HWB, but we don't have an alpha-aware - version of that yet. */ - xlate[p] = - gdImageColorClosestAlpha (from, to->red[p], to->green[p], - to->blue[p], to->alpha[p]); - /*printf("Mapping %d (%d, %d, %d, %d) to %d (%d, %d, %d, %d)\n", */ - /* p, to->red[p], to->green[p], to->blue[p], to->alpha[p], */ - /* xlate[p], from->red[xlate[p]], from->green[xlate[p]], from->blue[xlate[p]], from->alpha[xlate[p]]); */ - }; - gdImageSetPixel (to, x, y, xlate[p]); - }; - }; - - for (i = 0; (i < (from->colorsTotal)); i++) - { - /*printf("Copying color %d (%d, %d, %d, %d)\n", i, from->red[i], from->blue[i], from->green[i], from->alpha[i]); */ - to->red[i] = from->red[i]; - to->blue[i] = from->blue[i]; - to->green[i] = from->green[i]; - to->alpha[i] = from->alpha[i]; - to->open[i] = 0; - }; - - for (i = from->colorsTotal; (i < to->colorsTotal); i++) - { - to->open[i] = 1; - }; - - to->colorsTotal = from->colorsTotal; - -} - -/* 2.0.10: before the drawing routines, some code to clip points that are - * outside the drawing window. Nick Atty (nick@canalplan.org.uk) - * - * This is the Sutherland Hodgman Algorithm, as implemented by - * Duvanenko, Robbins and Gyurcsik - SH(DRG) for short. See Dr Dobb's - * Journal, January 1996, pp107-110 and 116-117 - * - * Given the end points of a line, and a bounding rectangle (which we - * know to be from (0,0) to (SX,SY)), adjust the endpoints to be on - * the edges of the rectangle if the line should be drawn at all, - * otherwise return a failure code */ - -/* this does "one-dimensional" clipping: note that the second time it - is called, all the x parameters refer to height and the y to width - - the comments ignore this (if you can understand it when it's - looking at the X parameters, it should become clear what happens on - the second call!) The code is simplified from that in the article, - as we know that gd images always start at (0,0) */ - -static int -clip_1d (int *x0, int *y0, int *x1, int *y1, int maxdim) -{ - double m; /* gradient of line */ - if (*x0 < 0) - { /* start of line is left of window */ - if (*x1 < 0) /* as is the end, so the line never cuts the window */ - return 0; - m = (*y1 - *y0) / (double) (*x1 - *x0); /* calculate the slope of the line */ - /* adjust x0 to be on the left boundary (ie to be zero), and y0 to match */ - *y0 -= m * *x0; - *x0 = 0; - /* now, perhaps, adjust the far end of the line as well */ - if (*x1 > maxdim) - { - *y1 += m * (maxdim - *x1); - *x1 = maxdim; - } - return 1; - } - if (*x0 > maxdim) - { /* start of line is right of window - - complement of above */ - if (*x1 > maxdim) /* as is the end, so the line misses the window */ - return 0; - m = (*y1 - *y0) / (double) (*x1 - *x0); /* calculate the slope of the line */ - *y0 += m * (maxdim - *x0); /* adjust so point is on the right - boundary */ - *x0 = maxdim; - /* now, perhaps, adjust the end of the line */ - if (*x1 < 0) - { - *y1 -= m * *x1; - *x1 = 0; - } - return 1; - } - /* the final case - the start of the line is inside the window */ - if (*x1 > maxdim) - { /* other end is outside to the right */ - m = (*y1 - *y0) / (double) (*x1 - *x0); /* calculate the slope of the line */ - *y1 += m * (maxdim - *x1); - *x1 = maxdim; - return 1; - } - if (*x1 < 0) - { /* other end is outside to the left */ - m = (*y1 - *y0) / (double) (*x1 - *x0); /* calculate the slope of the line */ - *y1 -= m * *x1; - *x1 = 0; - return 1; - } - /* only get here if both points are inside the window */ - return 1; -} - -/* end of line clipping code */ - -void -gdImageSetPixel (gdImagePtr im, int x, int y, int color) -{ - int p; - switch (color) - { - case gdStyled: - if (!im->style) - { - /* Refuse to draw if no style is set. */ - return; - } - else - { - p = im->style[im->stylePos++]; - } - if (p != (gdTransparent)) - { - gdImageSetPixel (im, x, y, p); - } - im->stylePos = im->stylePos % im->styleLength; - break; - case gdStyledBrushed: - if (!im->style) - { - /* Refuse to draw if no style is set. */ - return; - } - p = im->style[im->stylePos++]; - if ((p != gdTransparent) && (p != 0)) - { - gdImageSetPixel (im, x, y, gdBrushed); - } - im->stylePos = im->stylePos % im->styleLength; - break; - case gdBrushed: - gdImageBrushApply (im, x, y); - break; - case gdTiled: - gdImageTileApply (im, x, y); - break; - case gdAntiAliased: - gdImageAntiAliasedApply (im, x, y); - break; - default: - if (gdImageBoundsSafeMacro (im, x, y)) - { - if (im->trueColor) - { - if (im->alphaBlendingFlag) - { - im->tpixels[y][x] = gdAlphaBlend (im->tpixels[y][x], color); - } - else - { - im->tpixels[y][x] = color; - } - } - else - { - im->pixels[y][x] = color; - } - } - break; - } -} - -static void -gdImageBrushApply (gdImagePtr im, int x, int y) -{ - int lx, ly; - int hy; - int hx; - int x1, y1, x2, y2; - int srcx, srcy; - if (!im->brush) - { - return; - } - hy = gdImageSY (im->brush) / 2; - y1 = y - hy; - y2 = y1 + gdImageSY (im->brush); - hx = gdImageSX (im->brush) / 2; - x1 = x - hx; - x2 = x1 + gdImageSX (im->brush); - srcy = 0; - if (im->trueColor) - { - if (im->brush->trueColor) - { - for (ly = y1; (ly < y2); ly++) - { - srcx = 0; - for (lx = x1; (lx < x2); lx++) - { - int p; - p = gdImageGetTrueColorPixel (im->brush, srcx, srcy); - /* 2.0.9, Thomas Winzig: apply simple full transparency */ - if (p != gdImageGetTransparent (im->brush)) - { - gdImageSetPixel (im, lx, ly, p); - } - srcx++; - } - srcy++; - } - } - else - { - /* 2.0.12: Brush palette, image truecolor (thanks to Thorben Kundinger - for pointing out the issue) */ - for (ly = y1; (ly < y2); ly++) - { - srcx = 0; - for (lx = x1; (lx < x2); lx++) - { - int p, tc; - p = gdImageGetPixel (im->brush, srcx, srcy); - tc = gdImageGetTrueColorPixel (im->brush, srcx, srcy); - /* 2.0.9, Thomas Winzig: apply simple full transparency */ - if (p != gdImageGetTransparent (im->brush)) - { - gdImageSetPixel (im, lx, ly, tc); - } - srcx++; - } - srcy++; - } - } - } - else - { - for (ly = y1; (ly < y2); ly++) - { - srcx = 0; - for (lx = x1; (lx < x2); lx++) - { - int p; - p = gdImageGetPixel (im->brush, srcx, srcy); - /* Allow for non-square brushes! */ - if (p != gdImageGetTransparent (im->brush)) - { - /* Truecolor brush. Very slow - on a palette destination. */ - if (im->brush->trueColor) - { - gdImageSetPixel (im, lx, ly, - gdImageColorResolveAlpha (im, - gdTrueColorGetRed - (p), - gdTrueColorGetGreen - (p), - gdTrueColorGetBlue - (p), - gdTrueColorGetAlpha - (p))); - } - else - { - gdImageSetPixel (im, lx, ly, im->brushColorMap[p]); - } - } - srcx++; - } - srcy++; - } - } -} - -static void -gdImageTileApply (gdImagePtr im, int x, int y) -{ - int srcx, srcy; - int p; - if (!im->tile) - { - return; - } - srcx = x % gdImageSX (im->tile); - srcy = y % gdImageSY (im->tile); - if (im->trueColor) - { - p = gdImageGetTrueColorPixel (im->tile, srcx, srcy); - gdImageSetPixel (im, x, y, p); - } - else - { - p = gdImageGetPixel (im->tile, srcx, srcy); - /* Allow for transparency */ - if (p != gdImageGetTransparent (im->tile)) - { - if (im->tile->trueColor) - { - /* Truecolor tile. Very slow - on a palette destination. */ - gdImageSetPixel (im, x, y, - gdImageColorResolveAlpha (im, - gdTrueColorGetRed - (p), - gdTrueColorGetGreen - (p), - gdTrueColorGetBlue - (p), - gdTrueColorGetAlpha - (p))); - } - else - { - gdImageSetPixel (im, x, y, im->tileColorMap[p]); - } - } - } -} - -static void -gdImageAntiAliasedApply (gdImagePtr im, int px, int py) -{ - float p_dist, p_alpha; - unsigned char opacity; - - /* - * Find the perpendicular distance from point C (px, py) to the line - * segment AB that is being drawn. (Adapted from an algorithm from the - * comp.graphics.algorithms FAQ.) - */ - - int LAC_2, LBC_2; - - int Ax_Cx = im->AAL_x1 - px; - int Ay_Cy = im->AAL_y1 - py; - - int Bx_Cx = im->AAL_x2 - px; - int By_Cy = im->AAL_y2 - py; - /* 2.0.13: bounds check! AA_opacity is just as capable of - overflowing as the main pixel array. Arne Jorgensen. - 2.0.14: typo fixed. 2.0.15: moved down below declarations - to satisfy non-C++ compilers. */ - if (!gdImageBoundsSafeMacro (im, px, py)) - { - return; - } - /* Get the squares of the lengths of the segemnts AC and BC. */ - LAC_2 = (Ax_Cx * Ax_Cx) + (Ay_Cy * Ay_Cy); - LBC_2 = (Bx_Cx * Bx_Cx) + (By_Cy * By_Cy); - - if (((im->AAL_LAB_2 + LAC_2) >= LBC_2) && - ((im->AAL_LAB_2 + LBC_2) >= LAC_2)) - { - /* The two angles are acute. The point lies inside the portion of the - * plane spanned by the line segment. */ - p_dist = fabs ((float) ((Ay_Cy * im->AAL_Bx_Ax) - - (Ax_Cx * im->AAL_By_Ay)) / im->AAL_LAB); - } - else - { - /* The point is past an end of the line segment. It's length from the - * segment is the shorter of the lengths from the endpoints, but call - * the distance -1, so as not to compute the alpha nor draw the pixel. - */ - p_dist = -1; - } - - if ((p_dist >= 0) && (p_dist <= (float) (im->thick))) - { - p_alpha = pow (1.0 - (p_dist / 1.5), 2); - - if (p_alpha > 0) - { - if (p_alpha >= 1) - opacity = 255; - else - opacity = (unsigned char) (p_alpha * 255.0); - if (!(im->AA_polygon) || (im->AA_opacity[py][px] < opacity)) - im->AA_opacity[py][px] = opacity; - } - } -} - -int -gdImageGetPixel (gdImagePtr im, int x, int y) -{ - if (gdImageBoundsSafeMacro (im, x, y)) - { - if (im->trueColor) - { - return im->tpixels[y][x]; - } - else - { - return im->pixels[y][x]; - } - } - else - { - return 0; - } -} - -static int -gdImageGetTrueColorPixel (gdImagePtr im, int x, int y) -{ - int p = gdImageGetPixel (im, x, y); - if (!im->trueColor) - { - return gdTrueColorAlpha (im->red[p], im->green[p], im->blue[p], - (im->transparent == p) ? gdAlphaTransparent : - gdAlphaOpaque); - } - else - { - return p; - } -} - -void -gdImageAABlend (gdImagePtr im) -{ - float p_alpha, old_alpha; - int color = im->AA_color, color_red, color_green, color_blue; - int old_color, old_red, old_green, old_blue; - int p_color, p_red, p_green, p_blue; - int px, py; - - color_red = gdImageRed (im, color); - color_green = gdImageGreen (im, color); - color_blue = gdImageBlue (im, color); - - /* Impose the anti-aliased drawing on the image. */ - for (py = 0; py < im->sy; py++) - { - for (px = 0; px < im->sx; px++) - { - if (im->AA_opacity[py][px] != 0) - { - old_color = gdImageGetPixel (im, px, py); - - if ((old_color != color) - && ((old_color != im->AA_dont_blend) - || (im->AA_opacity[py][px] == 255))) - { - /* Only blend with different colors that aren't the - * dont_blend color. */ - p_alpha = (float) (im->AA_opacity[py][px]) / 255.0; - old_alpha = 1.0 - p_alpha; - - if (p_alpha >= 1.0) - p_color = color; - else - { - old_red = gdImageRed (im, old_color); - old_green = gdImageGreen (im, old_color); - old_blue = gdImageBlue (im, old_color); - - p_red = (int) (((float) color_red * p_alpha) + - ((float) old_red * old_alpha)); - p_green = (int) (((float) color_green * p_alpha) + - ((float) old_green * old_alpha)); - p_blue = (int) (((float) color_blue * p_alpha) + - ((float) old_blue * old_alpha)); - p_color = - gdImageColorResolve (im, p_red, p_green, p_blue); - } - gdImageSetPixel (im, px, py, p_color); - } - } - } - /* Clear the AA_opacity array behind us. */ - memset (im->AA_opacity[py], 0, im->sx); - } -} - -/* Bresenham as presented in Foley & Van Dam */ -void -gdImageLine (gdImagePtr im, int x1, int y1, int x2, int y2, int color) -{ - int dx, dy, incr1, incr2, d, x, y, xend, yend, xdirflag, ydirflag; - int wid; - int w, wstart; - int thick = im->thick; - - /* 2.0.10: Nick Atty: clip to edges of drawing rectangle, return if no - points need to be drawn */ - - if (clip_1d (&x1, &y1, &x2, &y2, gdImageSX (im)) == 0) - return; - if (clip_1d (&y1, &x1, &y2, &x2, gdImageSY (im)) == 0) - return; - - /* gdAntiAliased passed as color: set anti-aliased line (AAL) global vars. */ - if (color == gdAntiAliased) - { - im->AAL_x1 = x1; - im->AAL_y1 = y1; - im->AAL_x2 = x2; - im->AAL_y2 = y2; - - /* Compute what we can for point-to-line distance calculation later. */ - im->AAL_Bx_Ax = x2 - x1; - im->AAL_By_Ay = y2 - y1; - im->AAL_LAB_2 = - (im->AAL_Bx_Ax * im->AAL_Bx_Ax) + (im->AAL_By_Ay * im->AAL_By_Ay); - im->AAL_LAB = sqrt (im->AAL_LAB_2); - - /* For AA, we must draw pixels outside the width of the line. Keep in - * mind that this will be curtailed by cos/sin of theta later. */ - thick += 4; - } - - dx = abs (x2 - x1); - dy = abs (y2 - y1); - if (dy <= dx) - { - /* More-or-less horizontal. use wid for vertical stroke */ - /* Doug Claar: watch out for NaN in atan2 (2.0.5) */ - if ((dx == 0) && (dy == 0)) - { - wid = 1; - } - else - { - /* 2.0.12: Michael Schwartz: divide rather than multiply; - TBB: but watch out for /0! */ - double ac = cos (atan2 (dy, dx)); - if (ac != 0) - { - wid = thick / ac; - } - else - { - wid = 1; - } - if (wid == 0) - { - wid = 1; - } - } - d = 2 * dy - dx; - incr1 = 2 * dy; - incr2 = 2 * (dy - dx); - if (x1 > x2) - { - x = x2; - y = y2; - ydirflag = (-1); - xend = x1; - } - else - { - x = x1; - y = y1; - ydirflag = 1; - xend = x2; - } - - /* Set up line thickness */ - wstart = y - wid / 2; - for (w = wstart; w < wstart + wid; w++) - gdImageSetPixel (im, x, w, color); - - if (((y2 - y1) * ydirflag) > 0) - { - while (x < xend) - { - x++; - if (d < 0) - { - d += incr1; - } - else - { - y++; - d += incr2; - } - wstart = y - wid / 2; - for (w = wstart; w < wstart + wid; w++) - gdImageSetPixel (im, x, w, color); - } - } - else - { - while (x < xend) - { - x++; - if (d < 0) - { - d += incr1; - } - else - { - y--; - d += incr2; - } - wstart = y - wid / 2; - for (w = wstart; w < wstart + wid; w++) - gdImageSetPixel (im, x, w, color); - } - } - } - else - { - /* More-or-less vertical. use wid for horizontal stroke */ - /* 2.0.12: Michael Schwartz: divide rather than multiply; - TBB: but watch out for /0! */ - double as = sin (atan2 (dy, dx)); - if (as != 0) - { - wid = thick / as; - } - else - { - wid = 1; - } - if (wid == 0) - wid = 1; - - d = 2 * dx - dy; - incr1 = 2 * dx; - incr2 = 2 * (dx - dy); - if (y1 > y2) - { - y = y2; - x = x2; - yend = y1; - xdirflag = (-1); - } - else - { - y = y1; - x = x1; - yend = y2; - xdirflag = 1; - } - - /* Set up line thickness */ - wstart = x - wid / 2; - for (w = wstart; w < wstart + wid; w++) - gdImageSetPixel (im, w, y, color); - - if (((x2 - x1) * xdirflag) > 0) - { - while (y < yend) - { - y++; - if (d < 0) - { - d += incr1; - } - else - { - x++; - d += incr2; - } - wstart = x - wid / 2; - for (w = wstart; w < wstart + wid; w++) - gdImageSetPixel (im, w, y, color); - } - } - else - { - while (y < yend) - { - y++; - if (d < 0) - { - d += incr1; - } - else - { - x--; - d += incr2; - } - wstart = x - wid / 2; - for (w = wstart; w < wstart + wid; w++) - gdImageSetPixel (im, w, y, color); - } - } - } - - /* If this is the only line we are drawing, go ahead and blend. */ - if ((color == gdAntiAliased) && !(im->AA_polygon)) - gdImageAABlend (im); -} -static void dashedSet (gdImagePtr im, int x, int y, int color, - int *onP, int *dashStepP, int wid, int vert); - -void -gdImageDashedLine (gdImagePtr im, int x1, int y1, int x2, int y2, int color) -{ - int dx, dy, incr1, incr2, d, x, y, xend, yend, xdirflag, ydirflag; - int dashStep = 0; - int on = 1; - int wid; - int vert; - int thick = im->thick; - - dx = abs (x2 - x1); - dy = abs (y2 - y1); - if (dy <= dx) - { - /* More-or-less horizontal. use wid for vertical stroke */ - /* 2.0.12: Michael Schwartz: divide rather than multiply; - TBB: but watch out for /0! */ - double as = sin (atan2 (dy, dx)); - if (as != 0) - { - wid = thick / as; - } - else - { - wid = 1; - } - vert = 1; - - d = 2 * dy - dx; - incr1 = 2 * dy; - incr2 = 2 * (dy - dx); - if (x1 > x2) - { - x = x2; - y = y2; - ydirflag = (-1); - xend = x1; - } - else - { - x = x1; - y = y1; - ydirflag = 1; - xend = x2; - } - dashedSet (im, x, y, color, &on, &dashStep, wid, vert); - if (((y2 - y1) * ydirflag) > 0) - { - while (x < xend) - { - x++; - if (d < 0) - { - d += incr1; - } - else - { - y++; - d += incr2; - } - dashedSet (im, x, y, color, &on, &dashStep, wid, vert); - } - } - else - { - while (x < xend) - { - x++; - if (d < 0) - { - d += incr1; - } - else - { - y--; - d += incr2; - } - dashedSet (im, x, y, color, &on, &dashStep, wid, vert); - } - } - } - else - { - /* 2.0.12: Michael Schwartz: divide rather than multiply; - TBB: but watch out for /0! */ - double as = sin (atan2 (dy, dx)); - if (as != 0) - { - wid = thick / as; - } - else - { - wid = 1; - } - vert = 0; - - d = 2 * dx - dy; - incr1 = 2 * dx; - incr2 = 2 * (dx - dy); - if (y1 > y2) - { - y = y2; - x = x2; - yend = y1; - xdirflag = (-1); - } - else - { - y = y1; - x = x1; - yend = y2; - xdirflag = 1; - } - dashedSet (im, x, y, color, &on, &dashStep, wid, vert); - if (((x2 - x1) * xdirflag) > 0) - { - while (y < yend) - { - y++; - if (d < 0) - { - d += incr1; - } - else - { - x++; - d += incr2; - } - dashedSet (im, x, y, color, &on, &dashStep, wid, vert); - } - } - else - { - while (y < yend) - { - y++; - if (d < 0) - { - d += incr1; - } - else - { - x--; - d += incr2; - } - dashedSet (im, x, y, color, &on, &dashStep, wid, vert); - } - } - } -} - -static void -dashedSet (gdImagePtr im, int x, int y, int color, - int *onP, int *dashStepP, int wid, int vert) -{ - int dashStep = *dashStepP; - int on = *onP; - int w, wstart; - - dashStep++; - if (dashStep == gdDashSize) - { - dashStep = 0; - on = !on; - } - if (on) - { - if (vert) - { - wstart = y - wid / 2; - for (w = wstart; w < wstart + wid; w++) - gdImageSetPixel (im, x, w, color); - } - else - { - wstart = x - wid / 2; - for (w = wstart; w < wstart + wid; w++) - gdImageSetPixel (im, w, y, color); - } - } - *dashStepP = dashStep; - *onP = on; -} - -int -gdImageBoundsSafe (gdImagePtr im, int x, int y) -{ - return gdImageBoundsSafeMacro (im, x, y); -} - -void -gdImageChar (gdImagePtr im, gdFontPtr f, int x, int y, int c, int color) -{ - int cx, cy; - int px, py; - int fline; - cx = 0; - cy = 0; -#ifdef CHARSET_EBCDIC - c = ASC (c); -#endif /*CHARSET_EBCDIC */ - if ((c < f->offset) || (c >= (f->offset + f->nchars))) - { - return; - } - fline = (c - f->offset) * f->h * f->w; - for (py = y; (py < (y + f->h)); py++) - { - for (px = x; (px < (x + f->w)); px++) - { - if (f->data[fline + cy * f->w + cx]) - { - gdImageSetPixel (im, px, py, color); - } - cx++; - } - cx = 0; - cy++; - } -} - -void -gdImageCharUp (gdImagePtr im, gdFontPtr f, int x, int y, int c, int color) -{ - int cx, cy; - int px, py; - int fline; - cx = 0; - cy = 0; -#ifdef CHARSET_EBCDIC - c = ASC (c); -#endif /*CHARSET_EBCDIC */ - if ((c < f->offset) || (c >= (f->offset + f->nchars))) - { - return; - } - fline = (c - f->offset) * f->h * f->w; - for (py = y; (py > (y - f->w)); py--) - { - for (px = x; (px < (x + f->h)); px++) - { - if (f->data[fline + cy * f->w + cx]) - { - gdImageSetPixel (im, px, py, color); - } - cy++; - } - cy = 0; - cx++; - } -} - -void -gdImageString (gdImagePtr im, gdFontPtr f, - int x, int y, unsigned char *s, int color) -{ - int i; - int l; - l = strlen ((char *) s); - for (i = 0; (i < l); i++) - { - gdImageChar (im, f, x, y, s[i], color); - x += f->w; - } -} - -void -gdImageStringUp (gdImagePtr im, gdFontPtr f, - int x, int y, unsigned char *s, int color) -{ - int i; - int l; - l = strlen ((char *) s); - for (i = 0; (i < l); i++) - { - gdImageCharUp (im, f, x, y, s[i], color); - y -= f->w; - } -} - -static int strlen16 (unsigned short *s); - -void -gdImageString16 (gdImagePtr im, gdFontPtr f, - int x, int y, unsigned short *s, int color) -{ - int i; - int l; - l = strlen16 (s); - for (i = 0; (i < l); i++) - { - gdImageChar (im, f, x, y, s[i], color); - x += f->w; - } -} - -void -gdImageStringUp16 (gdImagePtr im, gdFontPtr f, - int x, int y, unsigned short *s, int color) -{ - int i; - int l; - l = strlen16 (s); - for (i = 0; (i < l); i++) - { - gdImageCharUp (im, f, x, y, s[i], color); - y -= f->w; - } -} - -static int -strlen16 (unsigned short *s) -{ - int len = 0; - while (*s) - { - s++; - len++; - } - return len; -} - -#ifndef HAVE_LSQRT -/* If you don't have a nice square root function for longs, you can use - ** this hack - */ -long -lsqrt (long n) -{ - long result = (long) sqrt ((double) n); - return result; -} -#endif - -/* s and e are integers modulo 360 (degrees), with 0 degrees - being the rightmost extreme and degrees changing clockwise. - cx and cy are the center in pixels; w and h are the horizontal - and vertical diameter in pixels. Nice interface, but slow. - See gd_arc_f_buggy.c for a better version that doesn't - seem to be bug-free yet. */ - -void -gdImageArc (gdImagePtr im, int cx, int cy, int w, int h, int s, int e, - int color) -{ - gdImageFilledArc (im, cx, cy, w, h, s, e, color, gdNoFill); -} - -void -gdImageFilledArc (gdImagePtr im, int cx, int cy, int w, int h, int s, int e, - int color, int style) -{ - gdPoint pts[3]; - int i; - int lx = 0, ly = 0; - int fx = 0, fy = 0; - while (e < s) - { - e += 360; - } - for (i = s; (i <= e); i++) - { - int x, y; - x = ((long) gdCosT[i % 360] * (long) w / (2 * 1024)) + cx; - y = ((long) gdSinT[i % 360] * (long) h / (2 * 1024)) + cy; - if (i != s) - { - if (!(style & gdChord)) - { - if (style & gdNoFill) - { - gdImageLine (im, lx, ly, x, y, color); - } - else - { - /* This is expensive! */ - pts[0].x = lx; - pts[0].y = ly; - pts[1].x = x; - pts[1].y = y; - pts[2].x = cx; - pts[2].y = cy; - gdImageFilledPolygon (im, pts, 3, color); - } - } - } - else - { - fx = x; - fy = y; - } - lx = x; - ly = y; - } - if (style & gdChord) - { - if (style & gdNoFill) - { - if (style & gdEdged) - { - gdImageLine (im, cx, cy, lx, ly, color); - gdImageLine (im, cx, cy, fx, fy, color); - } - gdImageLine (im, fx, fy, lx, ly, color); - } - else - { - pts[0].x = fx; - pts[0].y = fy; - pts[1].x = lx; - pts[1].y = ly; - pts[2].x = cx; - pts[2].y = cy; - gdImageFilledPolygon (im, pts, 3, color); - } - } - else - { - if (style & gdNoFill) - { - if (style & gdEdged) - { - gdImageLine (im, cx, cy, lx, ly, color); - gdImageLine (im, cx, cy, fx, fy, color); - } - } - } -} - -void -gdImageFilledEllipse (gdImagePtr im, int cx, int cy, int w, int h, int color) -{ - gdImageFilledArc (im, cx, cy, w, h, 0, 360, color, gdPie); -} - -void -gdImageFillToBorder (gdImagePtr im, int x, int y, int border, int color) -{ - int lastBorder; - /* Seek left */ - int leftLimit, rightLimit; - int i; - leftLimit = (-1); - if (border < 0) - { - /* Refuse to fill to a non-solid border */ - return; - } - for (i = x; (i >= 0); i--) - { - if (gdImageGetPixel (im, i, y) == border) - { - break; - } - gdImageSetPixel (im, i, y, color); - leftLimit = i; - } - if (leftLimit == (-1)) - { - return; - } - /* Seek right */ - rightLimit = x; - for (i = (x + 1); (i < im->sx); i++) - { - if (gdImageGetPixel (im, i, y) == border) - { - break; - } - gdImageSetPixel (im, i, y, color); - rightLimit = i; - } - /* Look at lines above and below and start paints */ - /* Above */ - if (y > 0) - { - lastBorder = 1; - for (i = leftLimit; (i <= rightLimit); i++) - { - int c; - c = gdImageGetPixel (im, i, y - 1); - if (lastBorder) - { - if ((c != border) && (c != color)) - { - gdImageFillToBorder (im, i, y - 1, border, color); - lastBorder = 0; - } - } - else if ((c == border) || (c == color)) - { - lastBorder = 1; - } - } - } - /* Below */ - if (y < ((im->sy) - 1)) - { - lastBorder = 1; - for (i = leftLimit; (i <= rightLimit); i++) - { - int c; - c = gdImageGetPixel (im, i, y + 1); - if (lastBorder) - { - if ((c != border) && (c != color)) - { - gdImageFillToBorder (im, i, y + 1, border, color); - lastBorder = 0; - } - } - else if ((c == border) || (c == color)) - { - lastBorder = 1; - } - } - } -} - -void -gdImageFill (gdImagePtr im, int x, int y, int color) -{ - int lastBorder; - int old; - int leftLimit, rightLimit; - int i; - old = gdImageGetPixel (im, x, y); - if (color == gdTiled) - { - /* Tile fill -- got to watch out! */ - int p, tileColor; - int srcx, srcy; - if (!im->tile) - { - return; - } - /* Refuse to flood-fill with a transparent pattern -- - I can't do it without allocating another image */ - if (gdImageGetTransparent (im->tile) != (-1)) - { - return; - } - srcx = x % gdImageSX (im->tile); - srcy = y % gdImageSY (im->tile); - p = gdImageGetPixel (im->tile, srcx, srcy); - if (im->trueColor) - { - tileColor = p; - } - else - { - if (im->tile->trueColor) - { - tileColor = gdImageColorResolveAlpha (im, - gdTrueColorGetRed (p), - gdTrueColorGetGreen (p), - gdTrueColorGetBlue (p), - gdTrueColorGetAlpha (p)); - } - else - { - tileColor = im->tileColorMap[p]; - } - } - if (old == tileColor) - { - /* Nothing to be done */ - return; - } - } - else - { - if (old == color) - { - /* Nothing to be done */ - return; - } - } - /* Seek left */ - leftLimit = (-1); - for (i = x; (i >= 0); i--) - { - if (gdImageGetPixel (im, i, y) != old) - { - break; - } - gdImageSetPixel (im, i, y, color); - leftLimit = i; - } - if (leftLimit == (-1)) - { - return; - } - /* Seek right */ - rightLimit = x; - for (i = (x + 1); (i < im->sx); i++) - { - if (gdImageGetPixel (im, i, y) != old) - { - break; - } - gdImageSetPixel (im, i, y, color); - rightLimit = i; - } - /* Look at lines above and below and start paints */ - /* Above */ - if (y > 0) - { - lastBorder = 1; - for (i = leftLimit; (i <= rightLimit); i++) - { - int c; - c = gdImageGetPixel (im, i, y - 1); - if (lastBorder) - { - if (c == old) - { - gdImageFill (im, i, y - 1, color); - lastBorder = 0; - } - } - else if (c != old) - { - lastBorder = 1; - } - } - } - /* Below */ - if (y < ((im->sy) - 1)) - { - lastBorder = 1; - for (i = leftLimit; (i <= rightLimit); i++) - { - int c; - c = gdImageGetPixel (im, i, y + 1); - if (lastBorder) - { - if (c == old) - { - gdImageFill (im, i, y + 1, color); - lastBorder = 0; - } - } - else if (c != old) - { - lastBorder = 1; - } - } - } -} - -void -gdImageRectangle (gdImagePtr im, int x1, int y1, int x2, int y2, int color) -{ - int x1h = x1, x1v = x1, y1h = y1, y1v = y1, x2h = x2, x2v = x2, y2h = y2, - y2v = y2; - int thick = im->thick; - if (thick > 1) - { - int half = thick / 2; - int half1 = thick - half; - - if (y1 < y2) - { - y1v = y1h - half; - y2v = y2h + half1 - 1; - } - else - { - y1v = y1h + half1 - 1; - y2v = y2h - half; - } - } - - gdImageLine (im, x1h, y1h, x2h, y1h, color); - gdImageLine (im, x1h, y2h, x2h, y2h, color); - gdImageLine (im, x1v, y1v, x1v, y2v, color); - gdImageLine (im, x2v, y1v, x2v, y2v, color); -} - -void -gdImageFilledRectangle (gdImagePtr im, int x1, int y1, int x2, int y2, - int color) -{ - int x, y; - /* Nick Atty: limit the points at the edge. Note that this also - nicely kills any plotting for rectangles completely outside the - window as it makes the tests in the for loops fail */ - if (x1 < 0) - x1 = 0; - if (x1 > gdImageSX (im)) - x1 = gdImageSX (im); - if (y1 < 0) - y1 = 0; - if (y1 > gdImageSY (im)) - y1 = gdImageSY (im); - - for (y = y1; (y <= y2); y++) - { - for (x = x1; (x <= x2); x++) - { - gdImageSetPixel (im, x, y, color); - } - } -} - -void -gdImageCopy (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, int srcX, - int srcY, int w, int h) -{ - int c; - int x, y; - int tox, toy; - int i; - int colorMap[gdMaxColors]; - if (dst->trueColor) - { - /* 2.0: much easier when the destination is truecolor. */ - /* 2.0.10: needs a transparent-index check that is still valid if - the source is not truecolor. Thanks to Frank Warmerdam. */ - for (y = 0; (y < h); y++) - { - for (x = 0; (x < w); x++) - { - int p = gdImageGetPixel (src, srcX + x, srcY + y); - if (p != src->transparent) - { - int c = gdImageGetTrueColorPixel (src, srcX + x, - srcY + y); - gdImageSetPixel (dst, dstX + x, dstY + y, c); - } - } - } - return; - } - for (i = 0; (i < gdMaxColors); i++) - { - colorMap[i] = (-1); - } - toy = dstY; - for (y = srcY; (y < (srcY + h)); y++) - { - tox = dstX; - for (x = srcX; (x < (srcX + w)); x++) - { - int nc; - int mapTo; - c = gdImageGetPixel (src, x, y); - /* Added 7/24/95: support transparent copies */ - if (gdImageGetTransparent (src) == c) - { - tox++; - continue; - } - /* Have we established a mapping for this color? */ - if (src->trueColor) - { - /* 2.05: remap to the palette available in the - destination image. This is slow and - works badly, but it beats crashing! Thanks - to Padhrig McCarthy. */ - mapTo = gdImageColorResolveAlpha (dst, - gdTrueColorGetRed (c), - gdTrueColorGetGreen (c), - gdTrueColorGetBlue (c), - gdTrueColorGetAlpha (c)); - } - else if (colorMap[c] == (-1)) - { - /* If it's the same image, mapping is trivial */ - if (dst == src) - { - nc = c; - } - else - { - /* Get best match possible. This - function never returns error. */ - nc = gdImageColorResolveAlpha (dst, - src->red[c], src->green[c], - src->blue[c], src->alpha[c]); - } - colorMap[c] = nc; - mapTo = colorMap[c]; - } - else - { - mapTo = colorMap[c]; - } - gdImageSetPixel (dst, tox, toy, mapTo); - tox++; - } - toy++; - } -} - -/* This function is a substitute for real alpha channel operations, - so it doesn't pay attention to the alpha channel. */ -void -gdImageCopyMerge (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, - int srcX, int srcY, int w, int h, int pct) -{ - - int c, dc; - int x, y; - int tox, toy; - int ncR, ncG, ncB; - toy = dstY; - for (y = srcY; (y < (srcY + h)); y++) - { - tox = dstX; - for (x = srcX; (x < (srcX + w)); x++) - { - int nc; - c = gdImageGetPixel (src, x, y); - /* Added 7/24/95: support transparent copies */ - if (gdImageGetTransparent (src) == c) - { - tox++; - continue; - } - /* If it's the same image, mapping is trivial */ - if (dst == src) - { - nc = c; - } - else - { - dc = gdImageGetPixel (dst, tox, toy); - - ncR = gdImageRed (src, c) * (pct / 100.0) - + gdImageRed (dst, dc) * ((100 - pct) / 100.0); - ncG = gdImageGreen (src, c) * (pct / 100.0) - + gdImageGreen (dst, dc) * ((100 - pct) / 100.0); - ncB = gdImageBlue (src, c) * (pct / 100.0) - + gdImageBlue (dst, dc) * ((100 - pct) / 100.0); - - /* Find a reasonable color */ - nc = gdImageColorResolve (dst, ncR, ncG, ncB); - } - gdImageSetPixel (dst, tox, toy, nc); - tox++; - } - toy++; - } -} - -/* This function is a substitute for real alpha channel operations, - so it doesn't pay attention to the alpha channel. */ -void -gdImageCopyMergeGray (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, - int srcX, int srcY, int w, int h, int pct) -{ - - int c, dc; - int x, y; - int tox, toy; - int ncR, ncG, ncB; - float g; - toy = dstY; - for (y = srcY; (y < (srcY + h)); y++) - { - tox = dstX; - for (x = srcX; (x < (srcX + w)); x++) - { - int nc; - c = gdImageGetPixel (src, x, y); - /* Added 7/24/95: support transparent copies */ - if (gdImageGetTransparent (src) == c) - { - tox++; - continue; - } - /* - * If it's the same image, mapping is NOT trivial since we - * merge with greyscale target, but if pct is 100, the grey - * value is not used, so it becomes trivial. pjw 2.0.12. - */ - if (dst == src && pct == 100) - { - nc = c; - } - else - { - dc = gdImageGetPixel (dst, tox, toy); - g = 0.29900 * dst->red[dc] - + 0.58700 * dst->green[dc] + 0.11400 * dst->blue[dc]; - - ncR = gdImageRed (src, c) * (pct / 100.0) - + g * ((100 - pct) / 100.0); - ncG = gdImageGreen (src, c) * (pct / 100.0) - + g * ((100 - pct) / 100.0); - ncB = gdImageBlue (src, c) * (pct / 100.0) - + g * ((100 - pct) / 100.0); - - /* First look for an exact match */ - nc = gdImageColorExact (dst, ncR, ncG, ncB); - if (nc == (-1)) - { - /* No, so try to allocate it */ - nc = gdImageColorAllocate (dst, ncR, ncG, ncB); - /* If we're out of colors, go for the - closest color */ - if (nc == (-1)) - { - nc = gdImageColorClosest (dst, ncR, ncG, ncB); - } - } - } - gdImageSetPixel (dst, tox, toy, nc); - tox++; - } - toy++; - } -} - -void -gdImageCopyResized (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, - int srcX, int srcY, int dstW, int dstH, int srcW, - int srcH) -{ - int c; - int x, y; - int tox, toy; - int ydest; - int i; - int colorMap[gdMaxColors]; - /* Stretch vectors */ - int *stx; - int *sty; - /* We only need to use floating point to determine the correct - stretch vector for one line's worth. */ - double accum; - stx = (int *) gdMalloc (sizeof (int) * srcW); - sty = (int *) gdMalloc (sizeof (int) * srcH); - accum = 0; - for (i = 0; (i < srcW); i++) - { - int got; - accum += (double) dstW / (double) srcW; - got = (int) floor (accum); - stx[i] = got; - accum -= got; - } - accum = 0; - for (i = 0; (i < srcH); i++) - { - int got; - accum += (double) dstH / (double) srcH; - got = (int) floor (accum); - sty[i] = got; - accum -= got; - } - for (i = 0; (i < gdMaxColors); i++) - { - colorMap[i] = (-1); - } - toy = dstY; - for (y = srcY; (y < (srcY + srcH)); y++) - { - for (ydest = 0; (ydest < sty[y - srcY]); ydest++) - { - tox = dstX; - for (x = srcX; (x < (srcX + srcW)); x++) - { - int nc = 0; - int mapTo; - if (!stx[x - srcX]) - { - continue; - } - if (dst->trueColor) - { - /* 2.0.9: Thorben Kundinger: Maybe the source image is not - a truecolor image */ - if (!src->trueColor) - { - int tmp = gdImageGetPixel (src, x, y); - mapTo = gdImageGetTrueColorPixel (src, x, y); - if (gdImageGetTransparent (src) == tmp) - { - tox++; - continue; - } - } - else - { - /* TK: old code follows */ - mapTo = gdImageGetTrueColorPixel (src, x, y); - /* Added 7/24/95: support transparent copies */ - if (gdImageGetTransparent (src) == mapTo) - { - tox++; - continue; - } - } - } - else - { - c = gdImageGetPixel (src, x, y); - /* Added 7/24/95: support transparent copies */ - if (gdImageGetTransparent (src) == c) - { - tox += stx[x - srcX]; - continue; - } - if (src->trueColor) - { - /* Remap to the palette available in the - destination image. This is slow and - works badly. */ - mapTo = gdImageColorResolveAlpha (dst, - gdTrueColorGetRed (c), - gdTrueColorGetGreen - (c), - gdTrueColorGetBlue - (c), - gdTrueColorGetAlpha - (c)); - } - else - { - /* Have we established a mapping for this color? */ - if (colorMap[c] == (-1)) - { - /* If it's the same image, mapping is trivial */ - if (dst == src) - { - nc = c; - } - else - { - /* Find or create the best match */ - /* 2.0.5: can't use gdTrueColorGetRed, etc with palette */ - nc = gdImageColorResolveAlpha (dst, - gdImageRed (src, - c), - gdImageGreen - (src, c), - gdImageBlue (src, - c), - gdImageAlpha - (src, c)); - } - colorMap[c] = nc; - } - mapTo = colorMap[c]; - } - } - for (i = 0; (i < stx[x - srcX]); i++) - { - gdImageSetPixel (dst, tox, toy, mapTo); - tox++; - } - } - toy++; - } - } - gdFree (stx); - gdFree (sty); -} - -/* gd 2.0.8: gdImageCopyRotated is added. Source - is a rectangle, with its upper left corner at - srcX and srcY. Destination is the *center* of - the rotated copy. Angle is in degrees, same as - gdImageArc. Floating point destination center - coordinates allow accurate rotation of - objects of odd-numbered width or height. */ - -void -gdImageCopyRotated (gdImagePtr dst, - gdImagePtr src, - double dstX, double dstY, - int srcX, int srcY, - int srcWidth, int srcHeight, int angle) -{ - double dx, dy; - double radius = sqrt (srcWidth * srcWidth + srcHeight * srcHeight); - double aCos = cos (angle * .0174532925); - double aSin = sin (angle * .0174532925); - double scX = srcX + ((double) srcWidth) / 2; - double scY = srcY + ((double) srcHeight) / 2; - int cmap[gdMaxColors]; - int i; - for (i = 0; (i < gdMaxColors); i++) - { - cmap[i] = (-1); - } - for (dy = dstY - radius; (dy <= dstY + radius); dy++) - { - for (dx = dstX - radius; (dx <= dstX + radius); dx++) - { - double sxd = (dx - dstX) * aCos - (dy - dstY) * aSin; - double syd = (dy - dstY) * aCos + (dx - dstX) * aSin; - int sx = sxd + scX; - int sy = syd + scY; - if ((sx >= srcX) && (sx < srcX + srcWidth) && - (sy >= srcY) && (sy < srcY + srcHeight)) - { - int c = gdImageGetPixel (src, sx, sy); - if (!src->trueColor) - { - /* Use a table to avoid an expensive - lookup on every single pixel */ - if (cmap[c] == -1) - { - cmap[c] = gdImageColorResolveAlpha (dst, - gdImageRed (src, c), - gdImageGreen (src, - c), - gdImageBlue (src, - c), - gdImageAlpha (src, - c)); - } - gdImageSetPixel (dst, dx, dy, cmap[c]); - } - else - { - gdImageSetPixel (dst, - dx, dy, - gdImageColorResolveAlpha (dst, - gdImageRed (src, - c), - gdImageGreen - (src, c), - gdImageBlue (src, - c), - gdImageAlpha - (src, c))); - } - } - } - } -} - -/* When gd 1.x was first created, floating point was to be avoided. - These days it is often faster than table lookups or integer - arithmetic. The routine below is shamelessly, gloriously - floating point. TBB */ - -/* 2.0.10: cast instead of floor() yields 35% performance improvement. - Thanks to John Buckman. */ - -#define floor2(exp) ((long) exp) -/*#define floor2(exp) floor(exp)*/ - -void -gdImageCopyResampled (gdImagePtr dst, - gdImagePtr src, - int dstX, int dstY, - int srcX, int srcY, - int dstW, int dstH, int srcW, int srcH) -{ - int x, y; - if (!dst->trueColor) - { - gdImageCopyResized (dst, src, dstX, dstY, srcX, srcY, dstW, dstH, - srcW, srcH); - return; - } - for (y = dstY; (y < dstY + dstH); y++) - { - for (x = dstX; (x < dstX + dstW); x++) - { - float sy1, sy2, sx1, sx2; - float sx, sy; - float spixels = 0; - float red = 0.0, green = 0.0, blue = 0.0, alpha = 0.0; - sy1 = ((float) y - (float) dstY) * (float) srcH / (float) dstH; - sy2 = ((float) (y + 1) - (float) dstY) * (float) srcH / - (float) dstH; - sy = sy1; - do - { - float yportion; - if (floor2 (sy) == floor2 (sy1)) - { - yportion = 1.0 - (sy - floor2 (sy)); - if (yportion > sy2 - sy1) - { - yportion = sy2 - sy1; - } - sy = floor2 (sy); - } - else if (sy == floor2 (sy2)) - { - yportion = sy2 - floor2 (sy2); - } - else - { - yportion = 1.0; - } - sx1 = ((float) x - (float) dstX) * (float) srcW / dstW; - sx2 = ((float) (x + 1) - (float) dstX) * (float) srcW / dstW; - sx = sx1; - do - { - float xportion; - float pcontribution; - int p; - if (floor2 (sx) == floor2 (sx1)) - { - xportion = 1.0 - (sx - floor2 (sx)); - if (xportion > sx2 - sx1) - { - xportion = sx2 - sx1; - } - sx = floor2 (sx); - } - else if (sx == floor2 (sx2)) - { - xportion = sx2 - floor2 (sx2); - } - else - { - xportion = 1.0; - } - pcontribution = xportion * yportion; - /* 2.08: previously srcX and srcY were ignored. - Andrew Pattison */ - p = gdImageGetTrueColorPixel (src, - (int) sx + srcX, - (int) sy + srcY); - red += gdTrueColorGetRed (p) * pcontribution; - green += gdTrueColorGetGreen (p) * pcontribution; - blue += gdTrueColorGetBlue (p) * pcontribution; - alpha += gdTrueColorGetAlpha (p) * pcontribution; - spixels += xportion * yportion; - sx += 1.0; - } - while (sx < sx2); - sy += 1.0; - } - while (sy < sy2); - if (spixels != 0.0) - { - red /= spixels; - green /= spixels; - blue /= spixels; - alpha /= spixels; - } - /* Clamping to allow for rounding errors above */ - if (red > 255.0) - { - red = 255.0; - } - if (green > 255.0) - { - green = 255.0; - } - if (blue > 255.0) - { - blue = 255.0; - } - if (alpha > gdAlphaMax) - { - alpha = gdAlphaMax; - } - gdImageSetPixel (dst, - x, y, - gdTrueColorAlpha ((int) red, - (int) green, - (int) blue, (int) alpha)); - } - } -} - -gdImagePtr -gdImageCreateFromXbm (FILE * fd) -{ - gdImagePtr im; - int bit; - int w, h; - int bytes; - int ch; - int i, x, y; - char *sp; - char s[161]; - if (!fgets (s, 160, fd)) - { - return 0; - } - sp = &s[0]; - /* Skip #define */ - sp = strchr (sp, ' '); - if (!sp) - { - return 0; - } - /* Skip width label */ - sp++; - sp = strchr (sp, ' '); - if (!sp) - { - return 0; - } - /* Get width */ - w = atoi (sp + 1); - if (!w) - { - return 0; - } - if (!fgets (s, 160, fd)) - { - return 0; - } - sp = s; - /* Skip #define */ - sp = strchr (sp, ' '); - if (!sp) - { - return 0; - } - /* Skip height label */ - sp++; - sp = strchr (sp, ' '); - if (!sp) - { - return 0; - } - /* Get height */ - h = atoi (sp + 1); - if (!h) - { - return 0; - } - /* Skip declaration line */ - if (!fgets (s, 160, fd)) - { - return 0; - } - bytes = (w * h / 8) + 1; - im = gdImageCreate (w, h); - gdImageColorAllocate (im, 255, 255, 255); - gdImageColorAllocate (im, 0, 0, 0); - x = 0; - y = 0; - for (i = 0; (i < bytes); i++) - { - char h[3]; - unsigned int b; - /* Skip spaces, commas, CRs, 0x */ - while (1) - { - ch = getc (fd); - if (ch == EOF) - { - goto fail; - } - if (ch == 'x') - { - break; - } - } - /* Get hex value */ - ch = getc (fd); - if (ch == EOF) - { - goto fail; - } - h[0] = ch; - ch = getc (fd); - if (ch == EOF) - { - goto fail; - } - h[1] = ch; - h[2] = '\0'; - sscanf (h, "%x", &b); - for (bit = 1; (bit <= 128); (bit = bit << 1)) - { - gdImageSetPixel (im, x++, y, (b & bit) ? 1 : 0); - if (x == im->sx) - { - x = 0; - y++; - if (y == im->sy) - { - return im; - } - /* Fix 8/8/95 */ - break; - } - } - } - /* Shouldn't happen */ - fprintf (stderr, "Error: bug in gdImageCreateFromXbm!\n"); - return 0; -fail: - gdImageDestroy (im); - return 0; -} - -void -gdImagePolygon (gdImagePtr im, gdPointPtr p, int n, int c) -{ - int i; - int lx, ly; - if (!n) - { - return; - } - - /* Let it be known that we are drawing a polygon so that the opacity - * mask doesn't get cleared after each line. */ - if (c == gdAntiAliased) - im->AA_polygon = 1; - - lx = p->x; - ly = p->y; - gdImageLine (im, lx, ly, p[n - 1].x, p[n - 1].y, c); - for (i = 1; (i < n); i++) - { - p++; - gdImageLine (im, lx, ly, p->x, p->y, c); - lx = p->x; - ly = p->y; - } - - if (c == gdAntiAliased) - { - im->AA_polygon = 0; - gdImageAABlend (im); - } -} - -int gdCompareInt (const void *a, const void *b); - -/* THANKS to Kirsten Schulz for the polygon fixes! */ - -/* The intersection finding technique of this code could be improved */ -/* by remembering the previous intertersection, and by using the slope. */ -/* That could help to adjust intersections to produce a nice */ -/* interior_extrema. */ - -void -gdImageFilledPolygon (gdImagePtr im, gdPointPtr p, int n, int c) -{ - int i; - int y; - int miny, maxy; - int x1, y1; - int x2, y2; - int ind1, ind2; - int ints; - int fill_color; - if (!n) - { - return; - } - - if (c == gdAntiAliased) - fill_color = im->AA_color; - else - fill_color = c; - - if (!im->polyAllocated) - { - im->polyInts = (int *) gdMalloc (sizeof (int) * n); - im->polyAllocated = n; - } - if (im->polyAllocated < n) - { - while (im->polyAllocated < n) - { - im->polyAllocated *= 2; - } - im->polyInts = (int *) gdRealloc (im->polyInts, - sizeof (int) * im->polyAllocated); - } - miny = p[0].y; - maxy = p[0].y; - for (i = 1; (i < n); i++) - { - if (p[i].y < miny) - { - miny = p[i].y; - } - if (p[i].y > maxy) - { - maxy = p[i].y; - } - } - /* Fix in 1.3: count a vertex only once */ - for (y = miny; (y <= maxy); y++) - { -/*1.4 int interLast = 0; */ -/* int dirLast = 0; */ -/* int interFirst = 1; */ - ints = 0; - for (i = 0; (i < n); i++) - { - if (!i) - { - ind1 = n - 1; - ind2 = 0; - } - else - { - ind1 = i - 1; - ind2 = i; - } - y1 = p[ind1].y; - y2 = p[ind2].y; - if (y1 < y2) - { - x1 = p[ind1].x; - x2 = p[ind2].x; - } - else if (y1 > y2) - { - y2 = p[ind1].y; - y1 = p[ind2].y; - x2 = p[ind1].x; - x1 = p[ind2].x; - } - else - { - continue; - } - - /* Do the following math as float intermediately, and round to ensure - * that Polygon and FilledPolygon for the same set of points have the - * same footprint. */ - if ((y >= y1) && (y < y2)) - { - im->polyInts[ints++] = (float) ((y - y1) * (x2 - x1)) / - (float) (y2 - y1) + 0.5 + x1; - } - else if ((y == maxy) && (y > y1) && (y <= y2)) - { - im->polyInts[ints++] = (float) ((y - y1) * (x2 - x1)) / - (float) (y2 - y1) + 0.5 + x1; - } - } - qsort (im->polyInts, ints, sizeof (int), gdCompareInt); - - for (i = 0; (i < (ints)); i += 2) - { - gdImageLine (im, im->polyInts[i], y, im->polyInts[i + 1], y, - fill_color); - } - } - - /* If we are drawing this AA, then redraw the border with AA lines. */ - if (c == gdAntiAliased) - gdImagePolygon (im, p, n, c); -} - -int -gdCompareInt (const void *a, const void *b) -{ - return (*(const int *) a) - (*(const int *) b); -} - -void -gdImageSetStyle (gdImagePtr im, int *style, int noOfPixels) -{ - if (im->style) - { - gdFree (im->style); - } - im->style = (int *) gdMalloc (sizeof (int) * noOfPixels); - memcpy (im->style, style, sizeof (int) * noOfPixels); - im->styleLength = noOfPixels; - im->stylePos = 0; -} - -void -gdImageSetThickness (gdImagePtr im, int thickness) -{ - im->thick = thickness; -} - -void -gdImageSetBrush (gdImagePtr im, gdImagePtr brush) -{ - int i; - im->brush = brush; - if ((!im->trueColor) && (!im->brush->trueColor)) - { - for (i = 0; (i < gdImageColorsTotal (brush)); i++) - { - int index; - index = gdImageColorResolveAlpha (im, - gdImageRed (brush, i), - gdImageGreen (brush, i), - gdImageBlue (brush, i), - gdImageAlpha (brush, i)); - im->brushColorMap[i] = index; - } - } -} - -void -gdImageSetTile (gdImagePtr im, gdImagePtr tile) -{ - int i; - im->tile = tile; - if ((!im->trueColor) && (!im->tile->trueColor)) - { - for (i = 0; (i < gdImageColorsTotal (tile)); i++) - { - int index; - index = gdImageColorResolveAlpha (im, - gdImageRed (tile, i), - gdImageGreen (tile, i), - gdImageBlue (tile, i), - gdImageAlpha (tile, i)); - im->tileColorMap[i] = index; - } - } -} - -void -gdImageSetAntiAliased (gdImagePtr im, int c) -{ - im->AA = 1; - im->AA_color = c; - im->AA_dont_blend = -1; -} - -void -gdImageSetAntiAliasedDontBlend (gdImagePtr im, int c, int dont_blend) -{ - im->AA = 1; - im->AA_color = c; - im->AA_dont_blend = dont_blend; -} - -void -gdImageInterlace (gdImagePtr im, int interlaceArg) -{ - im->interlace = interlaceArg; -} - -int -gdImageCompare (gdImagePtr im1, gdImagePtr im2) -{ - int x, y; - int p1, p2; - int cmpStatus = 0; - int sx, sy; - - if (im1->interlace != im2->interlace) - { - cmpStatus |= GD_CMP_INTERLACE; - } - - if (im1->transparent != im2->transparent) - { - cmpStatus |= GD_CMP_TRANSPARENT; - } - - if (im1->trueColor != im2->trueColor) - { - cmpStatus |= GD_CMP_TRUECOLOR; - } - - sx = im1->sx; - if (im1->sx != im2->sx) - { - cmpStatus |= GD_CMP_SIZE_X + GD_CMP_IMAGE; - if (im2->sx < im1->sx) - { - sx = im2->sx; - } - } - - sy = im1->sy; - if (im1->sy != im2->sy) - { - cmpStatus |= GD_CMP_SIZE_Y + GD_CMP_IMAGE; - if (im2->sy < im1->sy) - { - sy = im2->sy; - } - } - - if (im1->colorsTotal != im2->colorsTotal) - { - cmpStatus |= GD_CMP_NUM_COLORS; - } - - for (y = 0; (y < sy); y++) - { - for (x = 0; (x < sx); x++) - { - p1 = - im1->trueColor ? gdImageTrueColorPixel (im1, x, - y) : - gdImagePalettePixel (im1, x, y); - p2 = - im2->trueColor ? gdImageTrueColorPixel (im2, x, - y) : - gdImagePalettePixel (im2, x, y); - if (gdImageRed (im1, p1) != gdImageRed (im2, p2)) - { - cmpStatus |= GD_CMP_COLOR + GD_CMP_IMAGE; - break; - } - if (gdImageGreen (im1, p1) != gdImageGreen (im2, p2)) - { - cmpStatus |= GD_CMP_COLOR + GD_CMP_IMAGE; - break; - } - if (gdImageBlue (im1, p1) != gdImageBlue (im2, p2)) - { - cmpStatus |= GD_CMP_COLOR + GD_CMP_IMAGE; - break; - } -#if 0 - /* Soon we'll add alpha channel to palettes */ - if (gdImageAlpha (im1, p1) != gdImageAlpha (im2, p2)) - { - cmpStatus |= GD_CMP_COLOR + GD_CMP_IMAGE; - break; - } -#endif - } - if (cmpStatus & GD_CMP_COLOR) - { - break; - }; - } - - return cmpStatus; -} - -int -gdAlphaBlend (int dst, int src) -{ - /* 2.0.12: TBB: alpha in the destination should be a - component of the result. Thanks to Frank Warmerdam for - pointing out the issue. */ - return ((((gdTrueColorGetAlpha (src) * - gdTrueColorGetAlpha (dst)) / gdAlphaMax) << 24) + - ((((gdAlphaTransparent - gdTrueColorGetAlpha (src)) * - gdTrueColorGetRed (src) / gdAlphaMax) + - (gdTrueColorGetAlpha (src) * - gdTrueColorGetRed (dst)) / gdAlphaMax) << 16) + - ((((gdAlphaTransparent - gdTrueColorGetAlpha (src)) * - gdTrueColorGetGreen (src) / gdAlphaMax) + - (gdTrueColorGetAlpha (src) * - gdTrueColorGetGreen (dst)) / gdAlphaMax) << 8) + - (((gdAlphaTransparent - gdTrueColorGetAlpha (src)) * - gdTrueColorGetBlue (src) / gdAlphaMax) + - (gdTrueColorGetAlpha (src) * - gdTrueColorGetBlue (dst)) / gdAlphaMax)); -} - -void -gdImageAlphaBlending (gdImagePtr im, int alphaBlendingArg) -{ - im->alphaBlendingFlag = alphaBlendingArg; -} - -void -gdImageSaveAlpha (gdImagePtr im, int saveAlphaArg) -{ - im->saveAlphaFlag = saveAlphaArg; -} - -void -gdImageSetClip (gdImagePtr im, int x1, int y1, int x2, int y2) -{ - if (x1 < 0) { - x1 = 0; - } - if (x1 >= im->sx) { - x1 = im->sx - 1; - } - if (x2 < 0) { - x2 = 0; - } - if (x2 >= im->sx) { - x2 = im->sx - 1; - } - if (y1 < 0) { - y1 = 0; - } - if (y1 >= im->sy) { - y1 = im->sy - 1; - } - if (y2 < 0) { - y2 = 0; - } - if (y2 >= im->sy) { - y2 = im->sy - 1; - } - im->cx1 = x1; - im->cy1 = y1; - im->cx2 = x2; - im->cy2 = y2; -} - -void -gdImageGetClip (gdImagePtr im, int *x1P, int *y1P, int *x2P, int *y2P) -{ - *x1P = im->cx1; - *y1P = im->cy1; - *x2P = im->cx2; - *y2P = im->cy2; -} - diff --git a/collects/plot/src/all/gd.h b/collects/plot/src/all/gd.h deleted file mode 100644 index 26a90bb7bf..0000000000 --- a/collects/plot/src/all/gd.h +++ /dev/null @@ -1,626 +0,0 @@ -#ifndef GD_H -#define GD_H 1 - -#ifdef __cplusplus -extern "C" -{ -#endif - -/* some might want to set DEFAULT_FONTPATH from configure in config.h */ -#ifndef DEFAULT_FONTPATH -/* default fontpath for unix systems - whatever happened to standards ! */ -#define DEFAULT_FONTPATH "/usr/X11R6/lib/X11/fonts/TrueType:/usr/X11R6/lib/X11/fonts/truetype:/usr/X11R6/lib/X11/fonts/TTF:/usr/share/fonts/TrueType:/usr/share/fonts/truetype:/usr/openwin/lib/X11/fonts/TrueType:/usr/X11R6/lib/X11/fonts/Type1" -#endif -#ifndef PATHSEPARATOR -#define PATHSEPARATOR ":" -#endif - -/* gd.h: declarations file for the graphic-draw module. - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, provided - * that the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation. This software is provided "AS IS." Thomas Boutell and - * Boutell.Com, Inc. disclaim all warranties, either express or implied, - * including but not limited to implied warranties of merchantability and - * fitness for a particular purpose, with respect to this code and accompanying - * documentation. */ - -/* stdio is needed for file I/O. */ -#include -#include "gd_io.h" - -/* The maximum number of palette entries in palette-based images. - In the wonderful new world of gd 2.0, you can of course have - many more colors when using truecolor mode. */ - -#define gdMaxColors 256 - -/* Image type. See functions below; you will not need to change - the elements directly. Use the provided macros to - access sx, sy, the color table, and colorsTotal for - read-only purposes. */ - -/* If 'truecolor' is set true, the image is truecolor; - pixels are represented by integers, which - must be 32 bits wide or more. - - True colors are repsented as follows: - - ARGB - - Where 'A' (alpha channel) occupies only the - LOWER 7 BITS of the MSB. This very small - loss of alpha channel resolution allows gd 2.x - to keep backwards compatibility by allowing - signed integers to be used to represent colors, - and negative numbers to represent special cases, - just as in gd 1.x. */ - -#define gdAlphaMax 127 -#define gdAlphaOpaque 0 -#define gdAlphaTransparent 127 -#define gdRedMax 255 -#define gdGreenMax 255 -#define gdBlueMax 255 -#define gdTrueColorGetAlpha(c) (((c) & 0x7F000000) >> 24) -#define gdTrueColorGetRed(c) (((c) & 0xFF0000) >> 16) -#define gdTrueColorGetGreen(c) (((c) & 0x00FF00) >> 8) -#define gdTrueColorGetBlue(c) ((c) & 0x0000FF) - -/* This function accepts truecolor pixel values only. The - source color is composited with the destination color - based on the alpha channel value of the source color. - The resulting color is opaque. */ - - int gdAlphaBlend (int dest, int src); - - typedef struct gdImageStruct - { - /* Palette-based image pixels */ - unsigned char **pixels; - int sx; - int sy; - /* These are valid in palette images only. See also - 'alpha', which appears later in the structure to - preserve binary backwards compatibility */ - int colorsTotal; - int red[gdMaxColors]; - int green[gdMaxColors]; - int blue[gdMaxColors]; - int open[gdMaxColors]; - /* For backwards compatibility, this is set to the - first palette entry with 100% transparency, - and is also set and reset by the - gdImageColorTransparent function. Newer - applications can allocate palette entries - with any desired level of transparency; however, - bear in mind that many viewers, notably - many web browsers, fail to implement - full alpha channel for PNG and provide - support for full opacity or transparency only. */ - int transparent; - int *polyInts; - int polyAllocated; - struct gdImageStruct *brush; - struct gdImageStruct *tile; - int brushColorMap[gdMaxColors]; - int tileColorMap[gdMaxColors]; - int styleLength; - int stylePos; - int *style; - int interlace; - /* New in 2.0: thickness of line. Initialized to 1. */ - int thick; - /* New in 2.0: alpha channel for palettes. Note that only - Macintosh Internet Explorer and (possibly) Netscape 6 - really support multiple levels of transparency in - palettes, to my knowledge, as of 2/15/01. Most - common browsers will display 100% opaque and - 100% transparent correctly, and do something - unpredictable and/or undesirable for levels - in between. TBB */ - int alpha[gdMaxColors]; - /* Truecolor flag and pixels. New 2.0 fields appear here at the - end to minimize breakage of existing object code. */ - int trueColor; - int **tpixels; - /* Should alpha channel be copied, or applied, each time a - pixel is drawn? This applies to truecolor images only. - No attempt is made to alpha-blend in palette images, - even if semitransparent palette entries exist. - To do that, build your image as a truecolor image, - then quantize down to 8 bits. */ - int alphaBlendingFlag; - /* Should the alpha channel of the image be saved? This affects - PNG at the moment; other future formats may also - have that capability. JPEG doesn't. */ - int saveAlphaFlag; - - /* 2.0.12: anti-aliased globals */ - int AA; - int AA_color; - int AA_dont_blend; - unsigned char **AA_opacity; - int AA_polygon; - /* Stored and pre-computed variables for determining the perpendicular - distance from a point to the anti-aliased line being drawn: */ - int AAL_x1; - int AAL_y1; - int AAL_x2; - int AAL_y2; - int AAL_Bx_Ax; - int AAL_By_Ay; - int AAL_LAB_2; - float AAL_LAB; - - /* 2.0.12: simple clipping rectangle. These values - must be checked for safety when set; please use - gdImageSetClip */ - int cx1; - int cy1; - int cx2; - int cy2; - } - gdImage; - - typedef gdImage *gdImagePtr; - - typedef struct - { - /* # of characters in font */ - int nchars; - /* First character is numbered... (usually 32 = space) */ - int offset; - /* Character width and height */ - int w; - int h; - /* Font data; array of characters, one row after another. - Easily included in code, also easily loaded from - data files. */ - char *data; - } - gdFont; - -/* Text functions take these. */ - typedef gdFont *gdFontPtr; - -/* For backwards compatibility only. Use gdImageSetStyle() - for MUCH more flexible line drawing. Also see - gdImageSetBrush(). */ -#define gdDashSize 4 - -/* Special colors. */ - -#define gdStyled (-2) -#define gdBrushed (-3) -#define gdStyledBrushed (-4) -#define gdTiled (-5) - -/* NOT the same as the transparent color index. - This is used in line styles only. */ -#define gdTransparent (-6) - -#define gdAntiAliased (-7) - -/* Functions to manipulate images. */ - -/* Creates a palette-based image (up to 256 colors). */ - gdImagePtr gdImageCreate (int sx, int sy); - -/* An alternate name for the above (2.0). */ -#define gdImageCreatePalette gdImageCreate - -/* Creates a truecolor image (millions of colors). */ - gdImagePtr gdImageCreateTrueColor (int sx, int sy); - -/* Creates an image from various file types. These functions - return a palette or truecolor image based on the - nature of the file being loaded. Truecolor PNG - stays truecolor; palette PNG stays palette-based; - JPEG is always truecolor. */ - gdImagePtr gdImageCreateFromPng (FILE * fd); - gdImagePtr gdImageCreateFromPngCtx (gdIOCtxPtr in); - gdImagePtr gdImageCreateFromWBMP (FILE * inFile); - gdImagePtr gdImageCreateFromWBMPCtx (gdIOCtx * infile); - gdImagePtr gdImageCreateFromJpeg (FILE * infile); - gdImagePtr gdImageCreateFromJpegCtx (gdIOCtx * infile); - -/* A custom data source. */ -/* The source function must return -1 on error, otherwise the number - of bytes fetched. 0 is EOF, not an error! */ -/* context will be passed to your source function. */ - - typedef struct - { - int (*source) (void *context, char *buffer, int len); - void *context; - } - gdSource, *gdSourcePtr; - - gdImagePtr gdImageCreateFromPngSource (gdSourcePtr in); - - gdImagePtr gdImageCreateFromGd (FILE * in); - gdImagePtr gdImageCreateFromGdCtx (gdIOCtxPtr in); - - gdImagePtr gdImageCreateFromGd2 (FILE * in); - gdImagePtr gdImageCreateFromGd2Ctx (gdIOCtxPtr in); - - gdImagePtr gdImageCreateFromGd2Part (FILE * in, int srcx, int srcy, int w, - int h); - gdImagePtr gdImageCreateFromGd2PartCtx (gdIOCtxPtr in, int srcx, int srcy, - int w, int h); - /* 2.0.10: prototype was missing */ - gdImagePtr gdImageCreateFromXpm (char *filename); - gdImagePtr gdImageCreateFromXbm (FILE * in); - - void gdImageDestroy (gdImagePtr im); - -/* Replaces or blends with the background depending on the - most recent call to gdImageAlphaBlending and the - alpha channel value of 'color'; default is to overwrite. - Tiling and line styling are also implemented - here. All other gd drawing functions pass through this call, - allowing for many useful effects. */ - - void gdImageSetPixel (gdImagePtr im, int x, int y, int color); - - int gdImageGetPixel (gdImagePtr im, int x, int y); - - void gdImageAABlend (gdImagePtr im); - - void gdImageLine (gdImagePtr im, int x1, int y1, int x2, int y2, int color); - -/* For backwards compatibility only. Use gdImageSetStyle() - for much more flexible line drawing. */ - void gdImageDashedLine (gdImagePtr im, int x1, int y1, int x2, int y2, - int color); -/* Corners specified (not width and height). Upper left first, lower right - second. */ - void gdImageRectangle (gdImagePtr im, int x1, int y1, int x2, int y2, - int color); -/* Solid bar. Upper left corner first, lower right corner second. */ - void gdImageFilledRectangle (gdImagePtr im, int x1, int y1, int x2, int y2, - int color); - void gdImageSetClip(gdImagePtr im, int x1, int y1, int x2, int y2); - void gdImageGetClip(gdImagePtr im, int *x1P, int *y1P, int *x2P, int *y2P); - int gdImageBoundsSafe (gdImagePtr im, int x, int y); - void gdImageChar (gdImagePtr im, gdFontPtr f, int x, int y, int c, - int color); - void gdImageCharUp (gdImagePtr im, gdFontPtr f, int x, int y, int c, - int color); - void gdImageString (gdImagePtr im, gdFontPtr f, int x, int y, - unsigned char *s, int color); - void gdImageStringUp (gdImagePtr im, gdFontPtr f, int x, int y, - unsigned char *s, int color); - void gdImageString16 (gdImagePtr im, gdFontPtr f, int x, int y, - unsigned short *s, int color); - void gdImageStringUp16 (gdImagePtr im, gdFontPtr f, int x, int y, - unsigned short *s, int color); - -/* clean up after using fonts in gdImageStringFT() */ - void gdFreeFontCache (); - -/* Calls gdImageStringFT. Provided for backwards compatibility only. */ - char *gdImageStringTTF (gdImage * im, int *brect, int fg, char *fontlist, - double ptsize, double angle, int x, int y, - char *string); - -/* FreeType 2 text output */ - char *gdImageStringFT (gdImage * im, int *brect, int fg, char *fontlist, - double ptsize, double angle, int x, int y, - char *string); - -/* 2.0.5: provides an extensible way to pass additional parameters. - Thanks to Wez Furlong, sorry for the delay. */ - - typedef struct - { - int flags; /* Logical OR of gdFTEX_ values */ - double linespacing; /* fine tune line spacing for '\n' */ - int charmap; /* TBB: 2.0.12: may be gdFTEX_Unicode, - gdFTEX_Shift_JIS, or gdFTEX_Big5; - when not specified, maps are searched - for in the above order. */ - } - gdFTStringExtra, *gdFTStringExtraPtr; - -#define gdFTEX_LINESPACE 1 -#define gdFTEX_CHARMAP 2 - -/* These are NOT flags; set one in 'charmap' if you set the - gdFTEX_CHARMAP bit in 'flags'. */ -#define gdFTEX_Unicode 0 -#define gdFTEX_Shift_JIS 1 -#define gdFTEX_Big5 2 - - char *gdImageStringFTEx (gdImage * im, int *brect, int fg, char *fontlist, - double ptsize, double angle, int x, int y, - char *string, gdFTStringExtraPtr strex); - -/* Point type for use in polygon drawing. */ - typedef struct - { - int x, y; - } - gdPoint, *gdPointPtr; - - void gdImagePolygon (gdImagePtr im, gdPointPtr p, int n, int c); - void gdImageFilledPolygon (gdImagePtr im, gdPointPtr p, int n, int c); - -/* These functions still work with truecolor images, - for which they never return error. */ - int gdImageColorAllocate (gdImagePtr im, int r, int g, int b); -/* gd 2.0: palette entries with non-opaque transparency are permitted. */ - int gdImageColorAllocateAlpha (gdImagePtr im, int r, int g, int b, int a); -/* Assumes opaque is the preferred alpha channel value */ - int gdImageColorClosest (gdImagePtr im, int r, int g, int b); -/* Closest match taking all four parameters into account. - A slightly different color with the same transparency - beats the exact same color with radically different - transparency */ - int gdImageColorClosestAlpha (gdImagePtr im, int r, int g, int b, int a); -/* An alternate method */ - int gdImageColorClosestHWB (gdImagePtr im, int r, int g, int b); -/* Returns exact, 100% opaque matches only */ - int gdImageColorExact (gdImagePtr im, int r, int g, int b); -/* Returns an exact match only, including alpha */ - int gdImageColorExactAlpha (gdImagePtr im, int r, int g, int b, int a); -/* Opaque only */ - int gdImageColorResolve (gdImagePtr im, int r, int g, int b); -/* Based on gdImageColorExactAlpha and gdImageColorClosestAlpha */ - int gdImageColorResolveAlpha (gdImagePtr im, int r, int g, int b, int a); - -/* A simpler way to obtain an opaque truecolor value for drawing on a - truecolor image. Not for use with palette images! */ - -#define gdTrueColor(r, g, b) (((r) << 16) + \ - ((g) << 8) + \ - (b)) - -/* Returns a truecolor value with an alpha channel component. - gdAlphaMax (127, **NOT 255**) is transparent, 0 is completely - opaque. */ - -#define gdTrueColorAlpha(r, g, b, a) (((a) << 24) + \ - ((r) << 16) + \ - ((g) << 8) + \ - (b)) - - void gdImageColorDeallocate (gdImagePtr im, int color); - -/* Converts a truecolor image to a palette-based image, - using a high-quality two-pass quantization routine - which attempts to preserve alpha channel information - as well as R/G/B color information when creating - a palette. If ditherFlag is set, the image will be - dithered to approximate colors better, at the expense - of some obvious "speckling." colorsWanted can be - anything up to 256. If the original source image - includes photographic information or anything that - came out of a JPEG, 256 is strongly recommended. - - Better yet, don't use this function -- write real - truecolor PNGs and JPEGs. The disk space gain of - conversion to palette is not great (for small images - it can be negative) and the quality loss is ugly. */ - - void gdImageTrueColorToPalette (gdImagePtr im, int ditherFlag, - int colorsWanted); - -/* Specifies a color index (if a palette image) or an - RGB color (if a truecolor image) which should be - considered 100% transparent. FOR TRUECOLOR IMAGES, - THIS IS IGNORED IF AN ALPHA CHANNEL IS BEING - SAVED. Use gdImageSaveAlpha(im, 0); to - turn off the saving of a full alpha channel in - a truecolor image. Note that gdImageColorTransparent - is usually compatible with older browsers that - do not understand full alpha channels well. TBB */ - void gdImageColorTransparent (gdImagePtr im, int color); - - void gdImagePaletteCopy (gdImagePtr dst, gdImagePtr src); - void gdImagePng (gdImagePtr im, FILE * out); - void gdImagePngCtx (gdImagePtr im, gdIOCtx * out); - /* 2.0.12: Compression level: 0-9 or -1, where 0 is NO COMPRESSION at all, - 1 is FASTEST but produces larger files, 9 provides the best - compression (smallest files) but takes a long time to compress, and - -1 selects the default compiled into the zlib library. */ - void gdImagePngEx (gdImagePtr im, FILE * out, int level); - void gdImagePngCtxEx (gdImagePtr im, gdIOCtx * out, int level); - - void gdImageWBMP (gdImagePtr image, int fg, FILE * out); - void gdImageWBMPCtx (gdImagePtr image, int fg, gdIOCtx * out); - -/* Guaranteed to correctly free memory returned - by the gdImage*Ptr functions */ - void gdFree (void *m); - -/* Best to free this memory with gdFree(), not free() */ - void *gdImageWBMPPtr (gdImagePtr im, int *size, int fg); - -/* 100 is highest quality (there is always a little loss with JPEG). - 0 is lowest. 10 is about the lowest useful setting. */ - void gdImageJpeg (gdImagePtr im, FILE * out, int quality); - void gdImageJpegCtx (gdImagePtr im, gdIOCtx * out, int quality); - -/* Best to free this memory with gdFree(), not free() */ - void *gdImageJpegPtr (gdImagePtr im, int *size, int quality); - -/* A custom data sink. For backwards compatibility. Use - gdIOCtx instead. */ -/* The sink function must return -1 on error, otherwise the number - of bytes written, which must be equal to len. */ -/* context will be passed to your sink function. */ - typedef struct - { - int (*sink) (void *context, const char *buffer, int len); - void *context; - } - gdSink, *gdSinkPtr; - - void gdImagePngToSink (gdImagePtr im, gdSinkPtr out); - - void gdImageGd (gdImagePtr im, FILE * out); - void gdImageGd2 (gdImagePtr im, FILE * out, int cs, int fmt); - -/* Best to free this memory with gdFree(), not free() */ - void *gdImagePngPtr (gdImagePtr im, int *size); - void *gdImagePngPtrEx (gdImagePtr im, int *size, int level); - -/* Best to free this memory with gdFree(), not free() */ - void *gdImageGdPtr (gdImagePtr im, int *size); - -/* Best to free this memory with gdFree(), not free() */ - void *gdImageGd2Ptr (gdImagePtr im, int cs, int fmt, int *size); - - void gdImageEllipse (gdImagePtr im, int cx, int cy, int w, int h, - int color); - -/* Style is a bitwise OR ( | operator ) of these. - gdArc and gdChord are mutually exclusive; - gdChord just connects the starting and ending - angles with a straight line, while gdArc produces - a rounded edge. gdPie is a synonym for gdArc. - gdNoFill indicates that the arc or chord should be - outlined, not filled. gdEdged, used together with - gdNoFill, indicates that the beginning and ending - angles should be connected to the center; this is - a good way to outline (rather than fill) a - 'pie slice'. */ -#define gdArc 0 -#define gdPie gdArc -#define gdChord 1 -#define gdNoFill 2 -#define gdEdged 4 - - void gdImageFilledArc (gdImagePtr im, int cx, int cy, int w, int h, int s, - int e, int color, int style); - void gdImageArc (gdImagePtr im, int cx, int cy, int w, int h, int s, int e, - int color); - void gdImageFilledEllipse (gdImagePtr im, int cx, int cy, int w, int h, - int color); - void gdImageFillToBorder (gdImagePtr im, int x, int y, int border, - int color); - void gdImageFill (gdImagePtr im, int x, int y, int color); - void gdImageCopy (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, - int srcX, int srcY, int w, int h); - void gdImageCopyMerge (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, - int srcX, int srcY, int w, int h, int pct); - void gdImageCopyMergeGray (gdImagePtr dst, gdImagePtr src, int dstX, - int dstY, int srcX, int srcY, int w, int h, - int pct); - -/* Stretches or shrinks to fit, as needed. Does NOT attempt - to average the entire set of source pixels that scale down onto the - destination pixel. */ - void gdImageCopyResized (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, - int srcX, int srcY, int dstW, int dstH, int srcW, - int srcH); - -/* gd 2.0: stretches or shrinks to fit, as needed. When called with a - truecolor destination image, this function averages the - entire set of source pixels that scale down onto the - destination pixel, taking into account what portion of the - destination pixel each source pixel represents. This is a - floating point operation, but this is not a performance issue - on modern hardware, except for some embedded devices. If the - destination is a palette image, gdImageCopyResized is - substituted automatically. */ - void gdImageCopyResampled (gdImagePtr dst, gdImagePtr src, int dstX, - int dstY, int srcX, int srcY, int dstW, int dstH, - int srcW, int srcH); - -/* gd 2.0.8: gdImageCopyRotated is added. Source - is a rectangle, with its upper left corner at - srcX and srcY. Destination is the *center* of - the rotated copy. Angle is in degrees, same as - gdImageArc. Floating point destination center - coordinates allow accurate rotation of - objects of odd-numbered width or height. */ - void gdImageCopyRotated (gdImagePtr dst, - gdImagePtr src, - double dstX, double dstY, - int srcX, int srcY, - int srcWidth, int srcHeight, int angle); - - void gdImageSetBrush (gdImagePtr im, gdImagePtr brush); - void gdImageSetTile (gdImagePtr im, gdImagePtr tile); - void gdImageSetAntiAliased (gdImagePtr im, int c); - void gdImageSetAntiAliasedDontBlend (gdImagePtr im, int c, int dont_blend); - void gdImageSetStyle (gdImagePtr im, int *style, int noOfPixels); -/* Line thickness (defaults to 1). Affects lines, ellipses, - rectangles, polygons and so forth. */ - void gdImageSetThickness (gdImagePtr im, int thickness); -/* On or off (1 or 0) for all three of these. */ - void gdImageInterlace (gdImagePtr im, int interlaceArg); - void gdImageAlphaBlending (gdImagePtr im, int alphaBlendingArg); - void gdImageSaveAlpha (gdImagePtr im, int saveAlphaArg); - -/* Macros to access information about images. */ - -/* Returns nonzero if the image is a truecolor image, - zero for a palette image. */ - -#define gdImageTrueColor(im) ((im)->trueColor) - -#define gdImageSX(im) ((im)->sx) -#define gdImageSY(im) ((im)->sy) -#define gdImageColorsTotal(im) ((im)->colorsTotal) -#define gdImageRed(im, c) ((im)->trueColor ? gdTrueColorGetRed(c) : \ - (im)->red[(c)]) -#define gdImageGreen(im, c) ((im)->trueColor ? gdTrueColorGetGreen(c) : \ - (im)->green[(c)]) -#define gdImageBlue(im, c) ((im)->trueColor ? gdTrueColorGetBlue(c) : \ - (im)->blue[(c)]) -#define gdImageAlpha(im, c) ((im)->trueColor ? gdTrueColorGetAlpha(c) : \ - (im)->alpha[(c)]) -#define gdImageGetTransparent(im) ((im)->transparent) -#define gdImageGetInterlaced(im) ((im)->interlace) - -/* These macros provide direct access to pixels in - palette-based and truecolor images, respectively. - If you use these macros, you must perform your own - bounds checking. Use of the macro for the correct type - of image is also your responsibility. */ -#define gdImagePalettePixel(im, x, y) (im)->pixels[(y)][(x)] -#define gdImageTrueColorPixel(im, x, y) (im)->tpixels[(y)][(x)] - -/* I/O Support routines. */ - - gdIOCtx *gdNewFileCtx (FILE *); - gdIOCtx *gdNewDynamicCtx (int, void *); - gdIOCtx *gdNewSSCtx (gdSourcePtr in, gdSinkPtr out); - void *gdDPExtractData (struct gdIOCtx *ctx, int *size); - -#define GD2_CHUNKSIZE 128 -#define GD2_CHUNKSIZE_MIN 64 -#define GD2_CHUNKSIZE_MAX 4096 - -#define GD2_VERS 2 -#define GD2_ID "gd2" - -#define GD2_FMT_RAW 1 -#define GD2_FMT_COMPRESSED 2 - -/* Image comparison definitions */ - int gdImageCompare (gdImagePtr im1, gdImagePtr im2); - -#define GD_CMP_IMAGE 1 /* Actual image IS different */ -#define GD_CMP_NUM_COLORS 2 /* Number of Colours in pallette differ */ -#define GD_CMP_COLOR 4 /* Image colours differ */ -#define GD_CMP_SIZE_X 8 /* Image width differs */ -#define GD_CMP_SIZE_Y 16 /* Image heights differ */ -#define GD_CMP_TRANSPARENT 32 /* Transparent colour */ -#define GD_CMP_BACKGROUND 64 /* Background colour */ -#define GD_CMP_INTERLACE 128 /* Interlaced setting */ -#define GD_CMP_TRUECOLOR 256 /* Truecolor vs palette differs */ - -/* resolution affects ttf font rendering, particularly hinting */ -#define GD_RESOLUTION 96 /* pixels per inch */ - -#ifdef __cplusplus -} -#endif - -#endif /* GD_H */ diff --git a/collects/plot/src/all/gd_drv.c b/collects/plot/src/all/gd_drv.c deleted file mode 100644 index 0150f70b62..0000000000 --- a/collects/plot/src/all/gd_drv.c +++ /dev/null @@ -1,1143 +0,0 @@ -/* $Id: gd_drv.c,v 1.1 2004/03/01 20:54:46 cozmic Exp $ - - PNG and JPEG device driver based on libgd -*/ - -/* - * The GD drivers, PNG and JPEG, support a number of different options - * depending on the version of GD installed. - * - * If you have installed GD Ver 2.+ you gain support for truecolour (24 - * bit, 16 millionish) modes as well as different line widths. These - * capibilities are part of GD more so than the GD driver, so they aren't - * available in any 1.? versions of the driver. - * - * 24 bit support is, by default, set to "auto" if you have V2.+ of GD. - * What this means is the *driver* decides when to use 24 bit or 8 bit - * modes for PNG files. The logic is rather simple - if you have less than - * 257 colours, it is set to 8 bit mode, if more then it's in 24 bit mode. - * This should work fine for most people, most of the time, in most - * situations; however, it can be overridden in case it has to via the - * "-drvopt" command line switch. The png driver has two related settings: - * 8bit and - * 24bit - * - * If either of these command line toggles are set, that mode becomes the - * standard used regardless of the number of colours used. It can be envoked - * as follows: - * x08c -dev png -drvopt 8bit -fam -o 8bitpng - * or - * x08c -dev png -drvopt 24bit -fam -o 24bitpng - * - * NOTE: - * The 24 bit PNG file is an RGBA file, not RGB - it includes alpha channel - * (transparency). Transparency is set to opaque, but the fact it is an - * RGBA and not an RGB might cause some problems with some viewers. - * Sadly, I can't do anything about it... sorry. - * - * - * Stuff for GD V1.? as well as V2.+ - * - * optimise - * - * From version 1.17 of the GD driver, a command line option has been - * added to try and optimise the PNG files. If successful, the optimise - * command will create 4 bit (16 colour) PNGs instead of 8 bit (256 colour) - * ones. This results in slightly smaller files with no loss in any colour - * information. The function has no real memory overhead, but does have a - * slight speed hit in exchange for the optimisation. For example: - * x08c -dev png -drvopt 8bit,optimise -fam -o 8bitpng - * forces the png driver to make 8bit pngs, and will then optimise any PNG - * images with 16 or less colours into a 4 bit PNG. Note, this DOESN'T WORK - * WITH 24bit PNGs yet, and will never work with JPEGs. - * - * - * Also as of version 1.17 of the GD driver, the options for palette - * modification previously set with the command line option "-hack" have - * now been moved to two options settable from the -drvopt switch. - * - * def_black15 - * - * -drvopt def_black15 sets index 15, usually white, to black if index 0, - * the background colour and usually black, has been set to white from the - * command line option -bg - * - * swp_red15 - * - * -drvopt swp_red15 swaps index 15, usually white, with index 1, which is - * usually red. This might be desirable occasionally, but it is principally - * included for cases when the background has been set on the command line - * to white, and the "def_black15" option has been issued to redefine index - * 15 as black. By issuing a command like: - * x08c -dev png -bg ffffff -drvopt def_black15,swp_red15 - * the driver will set the background to white, then redefine index 15 of - * cmap0, which is usually white to black, then swap index 2 (red) to 15 - * (white originally, now black), so at the end of the day, the "default" - * plotting colour is now black. Why do all of this ? It is a very quick - * way of making a nice web-friendly png without having to redefine the - * cmaps within your program. - * - */ - - -#include "plDevs.h" - -#if defined(PLD_png) || defined(PLD_jpeg) - -#include "plplotP.h" -#include "drivers.h" - -#include "gd.h" - -/* Device info */ -char* plD_DEVICE_INFO_gd = "jpeg:JPEG file:0:gd:40:jpeg\n" - "png:PNG file:0:gd:39:png"; - - -#ifdef HAVE_FREETYPE - -/* - * Freetype support has been added to the GD family of drivers using the - * plfreetype.c module, and implemented as a driver-specific optional extra - * invoked via the -drvopt command line toggle. It uses the - * "PLESC_HAS_TEXT" command for rendering within the driver. - * - * Freetype support is turned on/off at compile time by defining - * "HAVE_FREETYPE". - * - * To give the user some level of control over the fonts that are used, - * environmental variables can be set to over-ride the definitions used by - * the five default plplot fonts. - * - * Freetype rendering is used with the command line "-drvopt text". - * Anti-aliased fonts can be used by issuing "-drvopt text,smooth" - */ - -#include "plfreetype.h" - -#endif - -/* Prototypes for functions in this file. */ - -static void fill_polygon (PLStream *pls); -static void setcmap (PLStream *pls); -static void plD_init_png_Dev(PLStream *pls); -static void plD_gd_optimise (PLStream *pls); -static void plD_black15_gd (PLStream *pls); -static void plD_red15_gd (PLStream *pls); - -#ifdef HAVE_FREETYPE - -static void plD_pixel_gd (PLStream *pls, short x, short y); -static void init_freetype_lv1 (PLStream *pls); -static void init_freetype_lv2 (PLStream *pls); - -extern void plD_FreeType_init(PLStream *pls); -extern void plD_render_freetype_text (PLStream *pls, EscText *args); -extern void plD_FreeType_Destroy(PLStream *pls); -extern void pl_set_extended_cmap0(PLStream *pls, int ncol0_width, int ncol0_org); - -#endif - -/* top level declarations */ - -static int NCOLOURS=gdMaxColors; - -/* In an attempt to fix a problem with the hidden line removal functions - * that results in hidden lines *not* being removed from "small" plot - * pages (ie, like a normal video screen), a "virtual" page of much - * greater size is used to trick the algorithm into working correctly. - * If, in future, this gets fixed on its own, then don't define - * "use_experimental_hidden_line_hack" - */ - -#define use_experimental_hidden_line_hack - -/* I think the current version of Freetype supports up to a maximum of - * 128 grey levels for text smoothing. You can get quite acceptable - * results with as few as 4 grey-levels. Uusually only about 5 get used - * anyway, but the question is where, in the "grey spectrum" will they be ? - * Who knows ? The following define lets you set a maximum limit on the - * number of grey-levels used. It is really only here for the 24bit mode - * and could be set to 255, but that would slow things down and use more - * memory. 64 seems to be a nice compromise, but if you want to change it, - * then change it here. - */ - -#ifndef max_number_of_grey_levels_used_in_text_smoothing -#define max_number_of_grey_levels_used_in_text_smoothing 64 -#endif - -/* Not present in versions before 2.0 */ - -#ifndef gdImagePalettePixel -#define gdImagePalettePixel( im, x, y ) (im)->pixels[(y)][(x)] -#endif - -/* Struct to hold device-specific info. */ - -typedef struct { - - gdImagePtr im_out; /* Graphics pointer */ - PLINT pngx; - PLINT pngy; - - int colour; /* Current Colour */ - int totcol; /* Total number of colours */ - int ncol1; /* Actual size of ncol1 we got */ - - int scale; /* scaling factor to "blow up" to */ - /* the "virtual" page in removing hidden lines*/ - - int optimise; /* Flag used for 4bit pngs */ - int black15; /* Flag used for forcing a black colour */ - int red15; /* Flag for swapping red and 15 */ - -#if GD2_VERS >= 2 - int truecolour; /* Flag to ALWAYS force 24 bit mode */ - int palette; /* Flag to ALWAYS force 8 bit mode */ -#endif - -} png_Dev; - -void plD_init_png (PLStream *); -void plD_line_png (PLStream *, short, short, short, short); -void plD_polyline_png (PLStream *, short *, short *, PLINT); -void plD_eop_png (PLStream *); -void plD_eop_jpeg (PLStream *); -void plD_bop_png (PLStream *); -void plD_tidy_png (PLStream *); -void plD_state_png (PLStream *, PLINT); -void plD_esc_png (PLStream *, PLINT, void *); - -#ifdef PLD_png - -void plD_dispatch_init_png( PLDispatchTable *pdt ) -{ - pdt->pl_MenuStr = "PNG file"; - pdt->pl_DevName = "png"; - pdt->pl_type = plDevType_FileOriented; - pdt->pl_seq = 39; - pdt->pl_init = (plD_init_fp) plD_init_png; - pdt->pl_line = (plD_line_fp) plD_line_png; - pdt->pl_polyline = (plD_polyline_fp) plD_polyline_png; - pdt->pl_eop = (plD_eop_fp) plD_eop_png; - pdt->pl_bop = (plD_bop_fp) plD_bop_png; - pdt->pl_tidy = (plD_tidy_fp) plD_tidy_png; - pdt->pl_state = (plD_state_fp) plD_state_png; - pdt->pl_esc = (plD_esc_fp) plD_esc_png; -} - -#endif - -#ifdef PLD_jpeg - -void plD_dispatch_init_jpeg( PLDispatchTable *pdt ) -{ - pdt->pl_MenuStr = "JPEG File"; - pdt->pl_DevName = "jpeg"; - pdt->pl_type = plDevType_FileOriented; - pdt->pl_seq = 40; - pdt->pl_init = (plD_init_fp) plD_init_png; - pdt->pl_line = (plD_line_fp) plD_line_png; - pdt->pl_polyline = (plD_polyline_fp) plD_polyline_png; - pdt->pl_eop = (plD_eop_fp) plD_eop_jpeg; - pdt->pl_bop = (plD_bop_fp) plD_bop_png; - pdt->pl_tidy = (plD_tidy_fp) plD_tidy_png; - pdt->pl_state = (plD_state_fp) plD_state_png; - pdt->pl_esc = (plD_esc_fp) plD_esc_png; -} -#endif - -/*--------------------------------------------------------------------------*\ - * plD_init_png_Dev() - * -\*--------------------------------------------------------------------------*/ - -static void -plD_init_png_Dev(PLStream *pls) -{ - png_Dev *dev; - int i; - -/* Stuff for the driver options, these vars are copied into the driver - * structure so that everything is thread safe and reenterant. - */ - - int optimise=0; - int black15=0; - int red15=0; -#if GD2_VERS >= 2 - int truecolour=0; - int palette=0; -#endif -#ifdef HAVE_FREETYPE - int freetype=0; - int smooth_text=0; - FT_Data *FT; -#endif - - DrvOpt gd_options[] = {{"optimise", DRV_INT, &optimise, "Optimise PNG palette when possible"}, - {"def_black15", DRV_INT, &black15, "Define idx 15 as black. If the background is \"whiteish\" (from \"-bg\" option), force index 15 (traditionally white) to be \"black\""}, - {"swp_red15", DRV_INT, &red15, "Swap index 1 (usually red) and 1 (usually white); always done after \"black15\"; quite useful for quick changes to web pages"}, -#if GD2_VERS >= 2 - {"8bit", DRV_INT, &palette, "Palette (8 bit) mode"}, - {"24bit", DRV_INT, &truecolour, "Truecolor (24 bit) mode"}, -#endif -#ifdef HAVE_FREETYPE - {"text", DRV_INT, &freetype, "Use driver text (FreeType)"}, - {"smooth", DRV_INT, &smooth_text, "Turn text smoothing on (1) or off (0)"}, -#endif - {NULL, DRV_INT, NULL, NULL}}; - - -/* Allocate and initialize device-specific data */ - - if (pls->dev != NULL) - free((void *) pls->dev); - - pls->dev = calloc(1, (size_t) sizeof(png_Dev)); - if (pls->dev == NULL) - plexit("plD_init_png_Dev: Out of memory."); - - dev = (png_Dev *) pls->dev; - - dev->colour=1; /* Set a fall back pen colour in case user doesn't */ - -/* - * Set the compression/quality level for JPEG files - * The higher the value, the bigger/better the image is - */ - if ( (pls->dev_compression<=0)||(pls->dev_compression>99) ) - pls->dev_compression=90; - -/* Check for and set up driver options */ - - plParseDrvOpts(gd_options); - - dev->black15=black15; - dev->red15=red15; - dev->optimise=optimise; - -#if GD2_VERS >= 2 - - dev->palette=palette; - dev->truecolour=truecolour; - - if ((dev->truecolour>0) && (dev->palette>0)) - plwarn("Selecting both \"truecolor\" AND \"palette\" driver options is contradictory, so\nI will just use my best judgment.\n"); - else if (dev->truecolour>0) - NCOLOURS=16777216; - else if ((dev->truecolour==0)&&(dev->palette==0)&&((pls->ncol1+pls->ncol0)>NCOLOURS)) - { - NCOLOURS=16777216; - } - -#endif - -#ifdef HAVE_FREETYPE -if (freetype) - { - pls->dev_text = 1; /* want to draw text */ - init_freetype_lv1(pls); - FT=(FT_Data *)pls->FT; - FT->want_smooth_text=smooth_text; - } - -#endif -} - -/*----------------------------------------------------------------------*\ - * plD_init_png() - * - * Initialize device. -\*----------------------------------------------------------------------*/ - -void plD_init_png(PLStream *pls) -{ - png_Dev *dev=NULL; - - pls->termin = 0; /* Not an interactive device */ - pls->icol0 = 1; - pls->bytecnt = 0; - pls->page = 0; - pls->dev_fill0 = 1; /* Can do solid fills */ - - if (!pls->colorset) - pls->color = 1; /* Is a color device */ - -/* Initialize family file info */ - plFamInit(pls); - -/* Prompt for a file name if not already set */ - plOpenFile(pls); - -/* Allocate and initialize device-specific data */ - plD_init_png_Dev(pls); - dev=(png_Dev *)pls->dev; - - if (pls->xlength <= 0 || pls->ylength <=0) - { -/* use default width, height of 800x600 if not specifed by -geometry option - * or plspage */ - plspage(0., 0., 800, 600, 0, 0); - } - - pls->graphx = GRAPHICS_MODE; - - dev->pngx = pls->xlength - 1; /* should I use -1 or not??? */ - dev->pngy = pls->ylength - 1; - -#ifdef use_experimental_hidden_line_hack - - if (dev->pngx>dev->pngy) /* Work out the scaling factor for the */ - { /* "virtual" (oversized) page */ - dev->scale=PIXELS_X/dev->pngx; - } - else - { - dev->scale=PIXELS_Y/dev->pngy; - } -#else - - dev->scale=1; - -#endif - - - if (pls->xdpi<=0) - { -/* This corresponds to a typical monitor resolution of 4 pixels/mm. */ - plspage(4.*25.4, 4.*25.4, 0, 0, 0, 0); - } - else - { - pls->ydpi=pls->xdpi; /* Set X and Y dpi's to the same value */ - } -/* Convert DPI to pixels/mm */ - plP_setpxl(dev->scale*pls->xdpi/25.4,dev->scale*pls->ydpi/25.4); - - plP_setphy(0, dev->scale*dev->pngx, 0, dev->scale*dev->pngy); - -#ifdef HAVE_FREETYPE -if (pls->dev_text) - { - init_freetype_lv2(pls); - } -#endif - -} - -/*----------------------------------------------------------------------*\ - * plD_line_png() - * - * Draw a line in the current color from (x1,y1) to (x2,y2). -\*----------------------------------------------------------------------*/ - -void -plD_line_png(PLStream *pls, short x1a, short y1a, short x2a, short y2a) -{ - png_Dev *dev=(png_Dev *)pls->dev; - int x1 = x1a/dev->scale, y1 = y1a/dev->scale, x2 = x2a/dev->scale, y2 = y2a/dev->scale; - y1 = dev->pngy - y1; - y2 = dev->pngy - y2; - - gdImageLine(dev->im_out, x1, y1, x2, y2, dev->colour); - -} - -/*----------------------------------------------------------------------*\ - * plD_polyline_png() - * - * Draw a polyline in the current color. -\*----------------------------------------------------------------------*/ - -void -plD_polyline_png(PLStream *pls, short *xa, short *ya, PLINT npts) -{ - PLINT i; - - for (i = 0; i < npts - 1; i++) - plD_line_png(pls, xa[i], ya[i], xa[i + 1], ya[i + 1]); -} - - -/*----------------------------------------------------------------------*\ - * fill_polygon() - * - * Fill polygon described in points pls->dev_x[] and pls->dev_y[]. -\*----------------------------------------------------------------------*/ - -static void -fill_polygon(PLStream *pls) -{ -png_Dev *dev=(png_Dev *)pls->dev; - - int i; - gdPoint *points=NULL; - - if (pls->dev_npts < 1) - return; - - points = malloc((size_t)pls->dev_npts * sizeof(gdPoint)); - - for (i = 0; i < pls->dev_npts; i++) - { - points[i].x = pls->dev_x[i]/dev->scale; - points[i].y = dev->pngy - (pls->dev_y[i]/dev->scale); - } - - gdImageFilledPolygon(dev->im_out, points, pls->dev_npts, dev->colour); - free(points); - -} - -/*----------------------------------------------------------------------*\ - * setcmap() - * - * Sets up color palette. -\*----------------------------------------------------------------------*/ - -static void -setcmap(PLStream *pls) -{ - int i, ncol1=pls->ncol1; - int ncol0=pls->ncol0, total_colours; - PLColor cmap1col; - png_Dev *dev=(png_Dev *)pls->dev; - PLFLT tmp_colour_pos; - -/* - * Yuckky fix to get rid of the previosuly allocated palette from the - * GD image - */ - - for (i=0;i<256;i++) - { - gdImageColorDeallocate(dev->im_out,i); - } - - if (ncol0>NCOLOURS/2) /* Check for ridiculous number of colours */ - { /* in ncol0, and appropriately adjust the */ - plwarn("Too many colours in cmap0."); /* number, issuing a */ - ncol0=NCOLOURS/2; /* warning if it does */ - pls->ncol0=ncol0; - } - - dev->totcol=0; /* Reset the number of colours counter to zero */ - - total_colours=ncol0+ncol1; /* Work out how many colours are wanted */ - - if (total_colours>NCOLOURS) /* Do some rather modest error */ - { /* checking to make sure that */ - total_colours=NCOLOURS; /* we are not defining more colours */ - ncol1=total_colours-ncol0; /* than we have room for. */ - - if (ncol1<=0) - { - plexit("Problem setting colourmap in PNG or JPEG driver."); - } - } - - dev->ncol1=ncol1; /* The actual size of ncol1, regardless of what was asked. - * This is dependent on colour slots available. - * It might well be the same as ncol1. - */ - -/* Initialize cmap 0 colors */ - -if (ncol0>0) /* make sure the program actually asked for cmap0 first */ - { - for (i = 0; i < ncol0; i++) - { - gdImageColorAllocate(dev->im_out, - pls->cmap0[i].r, pls->cmap0[i].g, pls->cmap0[i].b); - ++dev->totcol; /* count the number of colours we use as we use them */ - } - - - } - -/* Initialize any remaining slots for cmap1 */ - - -if (ncol1>0) /* make sure that we want to define cmap1 first */ - { - for (i = 0; i < ncol1; i++) - { - - if (ncol1ncol1) /* Check the dynamic range of colours */ - { - - /* - * Ok, now if we have less colour slots available than are being - * defined by pls->ncol1, then we still want to use the full - * dynamic range of cmap1 as best we can, so what we do is work - * out an approximation to the index in the full dynamic range - * in cases when pls->ncol1 exceeds the number of free colours. - */ - - tmp_colour_pos= i>0 ? pls->ncol1*((PLFLT)i/ncol1) : 0; - plcol_interp(pls, &cmap1col, (int) tmp_colour_pos, pls->ncol1); - - } - else - { - plcol_interp(pls, &cmap1col, i, ncol1); - } - - - gdImageColorAllocate(dev->im_out, - cmap1col.r, cmap1col.g, cmap1col.b); - - ++dev->totcol; /* count the number of colours we use as we go */ - } - } -} - - -/*----------------------------------------------------------------------*\ - * plD_state_png() - * - * Handle change in PLStream state (color, pen width, fill attribute, etc). -\*----------------------------------------------------------------------*/ - -void -plD_state_png(PLStream *pls, PLINT op) -{ -png_Dev *dev=(png_Dev *)pls->dev; -PLFLT tmp_colour_pos; -#if GD2_VERS >= 2 -long temp_col; -#endif - - - switch (op) { - -#if GD2_VERS >= 2 - case PLSTATE_WIDTH: - gdImageSetThickness(dev->im_out, pls->width); - break; -#endif - - case PLSTATE_COLOR0: -#if GD2_VERS >= 2 - - if ( (pls->icol0 == PL_RGB_COLOR)|| /* Should never happen since PL_RGB_COLOR is depreciated, but here for backwards compatibility */ - (gdImageTrueColor(dev->im_out)) ) /* We will do this if we are in "TrueColour" mode */ - { - if ( (dev->totcol < NCOLOURS)|| /* See if there are slots left, if so we will allocate a new colour */ - (gdImageTrueColor(dev->im_out)) ) /* In TrueColour mode we allocate each colour as we come to it */ - { - /* Next allocate a new colour to a temporary slot since what we do with it will varay depending on if its a pallter index or truecolour */ - temp_col=gdImageColorAllocate(dev->im_out,pls->curcolor.r, - pls->curcolor.g, pls->curcolor.b); - - if (gdImageTrueColor(dev->im_out)) - dev->colour = temp_col; /* If it's truecolour, then we will directly set dev->colour to our "new" colour */ - else - { - dev->colour = dev->totcol; /* or else, we will just set it to the last colour */ - dev->totcol++; /* Bump the total colours for next time round */ - } - } - - } - else /* just a normal colour allocate, so don't worry about the above stuff, just grab the index */ - { - dev->colour = pls->icol0; - } - -#else - dev->colour = pls->icol0; - if (dev->colour == PL_RGB_COLOR) - { - if (dev->totcol < NCOLOURS) - { - gdImageColorAllocate(dev->im_out,pls->curcolor.r, pls->curcolor.g, pls->curcolor.b); - dev->colour = dev->totcol; - } - - } -#endif - break; - - case PLSTATE_COLOR1: - -#if GD2_VERS >= 2 - if (!gdImageTrueColor(dev->im_out)) - { -#endif - /* - * Start by checking to see if we have to compensate for cases where - * we don't have the full dynamic range of cmap1 at our disposal - */ - if (dev->ncol1ncol1) - { - tmp_colour_pos=dev->ncol1*((PLFLT)pls->icol1/(pls->ncol1>0 ? pls->ncol1 : 1)); - dev->colour = pls->ncol0 + (int)tmp_colour_pos; - } - else - dev->colour = pls->ncol0 + pls->icol1; -#if GD2_VERS >= 2 - } - else /* it is a truecolour image */ - { - dev->colour = gdTrueColor(pls->curcolor.r, pls->curcolor.g, pls->curcolor.b); - } -#endif - break; - - - case PLSTATE_CMAP0: - case PLSTATE_CMAP1: - -#if GD2_VERS >= 2 - if (!gdImageTrueColor(dev->im_out)) - { -#endif - - /* - * Code to redefine the entire palette - */ - - - if (pls->color) - setcmap(pls); - -#if GD2_VERS >= 2 -} -#endif - - break; - } -} - - -/*----------------------------------------------------------------------*\ - * plD_esc_png() - * - * Escape function. -\*----------------------------------------------------------------------*/ - -void plD_esc_png(PLStream *pls, PLINT op, void *ptr) -{ - switch (op) { - - case PLESC_FILL: /* fill */ - fill_polygon(pls); - break; - -#ifdef HAVE_FREETYPE - case PLESC_HAS_TEXT: - plD_render_freetype_text(pls, (EscText *)ptr); - break; -#endif - - } -} - -/*----------------------------------------------------------------------*\ - * plD_bop_png() - * - * Set up for the next page. - * Advance to next family file if necessary (file output). -\*----------------------------------------------------------------------*/ - -void plD_bop_png(PLStream *pls) -{ - png_Dev *dev; - - plGetFam(pls); -/* force new file if pls->family set for all subsequent calls to plGetFam - * n.b. putting this after plGetFam call is important since plinit calls - * bop, and you don't want the familying sequence started until after - * that first call to bop.*/ - -/* n.b. pls->dev can change because of an indirect call to plD_init_png - * from plGetFam if familying is enabled. Thus, wait to define dev until - * now. */ - - dev = (png_Dev *) pls->dev; - - pls->famadv = 1; - - pls->page++; - -if (dev->black15) plD_black15_gd(pls); -if (dev->red15) plD_red15_gd(pls); - -#if GD2_VERS >= 2 - if ( ( ((dev->truecolour>0) && (dev->palette>0))|| /* In an EXTREMELY convaluted */ - ((dev->truecolour==0) && (dev->palette==0))&& /* manner, all this is just */ - ((pls->ncol1+pls->ncol0)<=256) )|| /* asking the question, do we */ - ( ((dev->palette>0)&&(dev->truecolour==0)) ) ) /* want truecolour or not ? */ - { -#endif - - dev->im_out = gdImageCreate(pls->xlength, pls->ylength); - - setcmap(pls); - -#if GD2_VERS >= 2 - } - else - { - dev->im_out = gdImageCreateTrueColor(pls->xlength, pls->ylength); - -/* - * In truecolour mode, the background colour GD makes is ALWAYS black, so to - * "simulate" (stimulate?) a background colour other than black, we will just - * draw a dirty big rectange covering the whole image and colour it in - * whatever colour cmap0[0] happens to be. - * - * Question to C gurus: while it is slightly illogical and ugly, would: - * if ((pls->cmap0[0].r+pls->cmap0[0].g+pls->cmap0[0].b)!=0) - * be more computationally efficient than: - * if ((pls->cmap0[0].r!=0)||(pls->cmap0[0].g!=0)||(pls->cmap0[0].b!=0)) - * ??? - */ - - if ( (pls->cmap0[0].r!=0)||(pls->cmap0[0].g!=0)|| - (pls->cmap0[0].b!=0) ) - { - gdImageFilledRectangle(dev->im_out,0,0, pls->xlength-1, pls->ylength-1, - gdTrueColor(pls->cmap0[0].r,pls->cmap0[0].g, - pls->cmap0[0].b)); - } - - } - - -/* This ensures the line width is set correctly at the beginning of - * each page */ - - plD_state_png(pls, PLSTATE_WIDTH); - -#endif - - -} - -/*----------------------------------------------------------------------*\ - * plD_tidy_png() - * - * Close graphics file or otherwise clean up. -\*----------------------------------------------------------------------*/ - -void plD_tidy_png(PLStream *pls) -{ - -#ifdef HAVE_FREETYPE - if (pls->dev_text) - { - FT_Data *FT=(FT_Data *)pls->FT; - plscmap0n(FT->ncol0_org); - plD_FreeType_Destroy(pls); - } -#endif - - fclose(pls->OutFile); - free_mem(pls->dev); -} - -/*----------------------------------------------------------------------*\ - * plD_black15_gd() - * - * This small function simply redefines index 15 of cmap0, which is - * usually set to white, to black, but only if index 0, which is usually - * black, has been redefined to white (for example, through -bg). - * -\*----------------------------------------------------------------------*/ - -void plD_black15_gd(PLStream *pls) -{ - -if (pls->ncol0>15) - { - if ((pls->cmap0[0].r>227)&&(pls->cmap0[0].g>227)&&(pls->cmap0[0].b>227)) - { - pls->cmap0[15].r=0; - pls->cmap0[15].g=0; - pls->cmap0[15].b=0; - } - } -} - - -/*----------------------------------------------------------------------*\ - * plD_red15_gd() - * - * - * This function swaps index 1, often the default plotting colour, with - * index 15, the last defined colour. - * - * Colour 15 is usually white, and 1 is usually red, so swapping the two - * might be desirable occasionally, but it is principally here for cases - * when the background has been set on the command line to white, and the - * "def_black15" option has been issued to redefine index 15 as black. By - * issuing a command like - * - * ... -bg ffffff -drvopt def_black15,swp_red15 - * - * the driver will set the background to white, then redefine index 15 of - * cmap0, which is usually white to black, then swap index 2 (red) to 15 - * (white originally, now black), so at the end of the day, the "default" - * plotting colour is now black. Why do all of this ? It is a very quick - * way of making a nice web-friendly png without having to redefine the - * cmaps within your program. - * - * If you don't like it, don't use it ! - * -\*----------------------------------------------------------------------*/ - -void plD_red15_gd(PLStream *pls) -{ -char r=pls->cmap0[1].r; -char g=pls->cmap0[1].g; -char b=pls->cmap0[1].b; - -if (pls->ncol0>15) - { - pls->cmap0[1].r=pls->cmap0[15].r; - pls->cmap0[1].g=pls->cmap0[15].r; - pls->cmap0[1].b=pls->cmap0[15].r; - - pls->cmap0[15].r=r; - pls->cmap0[15].g=g; - pls->cmap0[15].b=b; - } -} - - -/*----------------------------------------------------------------------*\ - * plD_gd_optimise() - * - * - * This function pretty much does exactly what it says - it optimises the - * PNG file. It does this by checking to see if all the allocated colours - * were actually used. If they were not, then it deallocates them. This - * function often results in the PNG file being saved as a 4 bit (16 - * colour) PNG rather than an 8 bit (256 colour) PNG. The file size - * difference is not huge, not as great as for GIFs for example (I think - * most of the saving comes from removing redundant entries from the - * palette entry in the header); however some modest size savings occur. - * - * The function isn't always successful - the optimiser will always - * deallocate unused colours as it finds them, but GD will only deallocate - * them "for real" until 16 colours are used up, and then stop since it - * doesn't make a difference if you have 17 colours or 255 colours. The - * result of this is you may end up with an image using say, 130 colours, - * but you will have 240 colour entries, some of which aren't used, and - * aren't blanked out. - * - * Another side-effect of this function is the relative position of the - * colour indices MAY shift as colours are deallocated. I really don't - * think this should worry anyone, but if it does, don't optimise the - * image ! - * -\*----------------------------------------------------------------------*/ - -void plD_gd_optimise(PLStream *pls) -{ -png_Dev *dev=(png_Dev *)pls->dev; -int i,j; -char *bbuf; - -bbuf=calloc(256,(size_t) 1); /* Allocate a buffer to "check off" colours as they are used */ -if (bbuf==NULL) plexit("plD_gd_optimise: Out of memory."); - - for(i=0;i<(pls->xlength-1);i++) /* Walk through the image pixel by pixel */ - { /* checking to see what colour it is */ - for(j=0;j<(pls->ylength-1);j++) /* and adding it to the list of used colours */ - { - bbuf[gdImagePalettePixel(dev->im_out, i, j)]=1; - } - } - -for (i=0;i<256;i++) /* next walk over the colours and deallocate */ - { /* unused ones */ - if (bbuf[i]==0) gdImageColorDeallocate(dev->im_out,i); - } - -free(bbuf); -} - - -#ifdef PLD_png - -/*----------------------------------------------------------------------*\ - * plD_eop_png() - * - * End of page. -\*----------------------------------------------------------------------*/ - -void plD_eop_png(PLStream *pls) -{ -png_Dev *dev=(png_Dev *)pls->dev; -int i; - - if (pls->family || pls->page == 1) { - - if (dev->optimise) - { -#if GD2_VERS >= 2 - if ( ( ((dev->truecolour>0) && (dev->palette>0))|| /* In an EXTREMELY convaluted */ - ((dev->truecolour==0) && (dev->palette==0))&& /* manner, all this is just */ - ((pls->ncol1+pls->ncol0)<=256) )|| /* asking the question, do we */ - ( ((dev->palette>0)&&(dev->truecolour==0)) ) ) /* want truecolour or not ? */ - { -#endif - plD_gd_optimise(pls); - -#if GD2_VERS >= 2 - } -#endif - } - - gdImagePng(dev->im_out, pls->OutFile); - - gdImageDestroy(dev->im_out); - } -} - -#endif - -#ifdef HAVE_FREETYPE - -/*----------------------------------------------------------------------*\ - * void plD_pixel_gd (PLStream *pls, short x, short y) - * - * callback function, of type "plD_pixel_fp", which specifies how a single - * pixel is set in the current colour. -\*----------------------------------------------------------------------*/ - -void plD_pixel_gd (PLStream *pls, short x, short y) -{ -png_Dev *dev=(png_Dev *)pls->dev; - - gdImageSetPixel(dev->im_out, x, y,dev->colour); - -} - -/*----------------------------------------------------------------------*\ - * void init_freetype_lv1 (PLStream *pls) - * - * "level 1" initialisation of the freetype library. - * "Level 1" initialisation calls plD_FreeType_init(pls) which allocates - * memory to the pls->FT structure, then sets up the pixel callback - * function. -\*----------------------------------------------------------------------*/ - -static void init_freetype_lv1 (PLStream *pls) -{ -FT_Data *FT; - -plD_FreeType_init(pls); - -FT=(FT_Data *)pls->FT; -FT->pixel= (plD_pixel_fp)plD_pixel_gd; - - -} - -/*----------------------------------------------------------------------*\ - * void init_freetype_lv2 (PLStream *pls) - * - * "Level 2" initialisation of the freetype library. - * "Level 2" fills in a few setting that aren't public until after the - * graphics sub-syetm has been initialised. - * The "level 2" initialisation fills in a few things that are defined - * later in the initialisation process for the GD driver. - * - * FT->scale is a scaling factor to convert co-ordinates. This is used by - * the GD and other drivers to scale back a larger virtual page and this - * eliminate the "hidden line removal bug". Set it to 1 if your device - * doesn't have scaling. - * - * Some coordinate systems have zero on the bottom, others have zero on - * the top. Freetype does it one way, and most everything else does it the - * other. To make sure everything is working ok, we have to "flip" the - * coordinates, and to do this we need to know how big in the Y dimension - * the page is, and whether we have to invert the page or leave it alone. - * - * FT->ymax specifies the size of the page FT->invert_y=1 tells us to - * invert the y-coordinates, FT->invert_y=0 will not invert the - * coordinates. -\*----------------------------------------------------------------------*/ - -static void init_freetype_lv2 (PLStream *pls) -{ -png_Dev *dev=(png_Dev *)pls->dev; -FT_Data *FT=(FT_Data *)pls->FT; - -FT->scale=dev->scale; -FT->ymax=dev->pngy; -FT->invert_y=1; -FT->smooth_text=0; - -if (FT->want_smooth_text==1) /* do we want to at least *try* for smoothing ? */ - { - FT->ncol0_org=pls->ncol0; /* save a copy of the original size of ncol0 */ - FT->ncol0_xtra=NCOLOURS-(pls->ncol1+pls->ncol0); /* work out how many free slots we have */ - FT->ncol0_width=FT->ncol0_xtra/(pls->ncol0-1); /* find out how many different shades of anti-aliasing we can do */ - if (FT->ncol0_width>4) /* are there enough colour slots free for text smoothing ? */ - { - if (FT->ncol0_width>max_number_of_grey_levels_used_in_text_smoothing) - FT->ncol0_width=max_number_of_grey_levels_used_in_text_smoothing; /* set a maximum number of shades */ - plscmap0n(FT->ncol0_org+(FT->ncol0_width*pls->ncol0)); /* redefine the size of cmap0 */ -/* the level manipulations are to turn off the plP_state(PLSTATE_CMAP0) - * call in plscmap0 which (a) leads to segfaults since the GD image is - * not defined at this point and (b) would be inefficient in any case since - * setcmap is always called later (see plD_bop_png) to update the driver - * color palette to be consistent with cmap0. */ - { - PLINT level_save; - level_save = pls->level; - pls->level = 0; - pl_set_extended_cmap0(pls, FT->ncol0_width, FT->ncol0_org); /* call the function to add the extra cmap0 entries and calculate stuff */ - pls->level = level_save; - } - FT->smooth_text=1; /* Yippee ! We had success setting up the extended cmap0 */ - } - else - plwarn("Insufficient colour slots available in CMAP0 to do text smoothing."); - } -} - -#endif - - -#ifdef PLD_jpeg - -/*----------------------------------------------------------------------*\ - * plD_eop_jpeg() - * - * End of page. -\*----------------------------------------------------------------------*/ - -void plD_eop_jpeg(PLStream *pls) -{ -png_Dev *dev=(png_Dev *)pls->dev; -int i; - - if (pls->family || pls->page == 1) { - gdImageJpeg(dev->im_out, pls->OutFile, pls->dev_compression); - - gdImageDestroy(dev->im_out); - } -} - -#endif - -/*#endif*/ - - -#else -int -pldummy_png() -{ - return 0; -} - -#endif /* PNG */ diff --git a/collects/plot/src/all/gd_gd.c b/collects/plot/src/all/gd_gd.c deleted file mode 100644 index 63b1663b0c..0000000000 --- a/collects/plot/src/all/gd_gd.c +++ /dev/null @@ -1,325 +0,0 @@ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include -#include "gd.h" - -#define TRUE 1 -#define FALSE 0 - -/* Exported functions: */ -extern void gdImageGd (gdImagePtr im, FILE * out); - - -/* Use this for commenting out debug-print statements. */ -/* Just use the first '#define' to allow all the prints... */ -/*#define GD2_DBG(s) (s) */ -#define GD2_DBG(s) - -/* */ -/* Shared code to read color tables from gd file. */ -/* */ -int -_gdGetColors (gdIOCtx * in, gdImagePtr im, int gd2xFlag) -{ - int i; - if (gd2xFlag) - { - int trueColorFlag; - if (!gdGetByte (&trueColorFlag, in)) - { - goto fail1; - } - /* 2.0.12: detect bad truecolor .gd files created by pre-2.0.12. - Beginning in 2.0.12 truecolor is indicated by the initial 2-byte - signature. */ - if (trueColorFlag != im->trueColor) - { - goto fail1; - } - /* This should have been a word all along */ - if (!im->trueColor) - { - if (!gdGetWord (&im->colorsTotal, in)) - { - goto fail1; - } - } - /* Int to accommodate truecolor single-color transparency */ - if (!gdGetInt (&im->transparent, in)) - { - goto fail1; - } - } - else - { - if (!gdGetByte (&im->colorsTotal, in)) - { - goto fail1; - } - if (!gdGetWord (&im->transparent, in)) - { - goto fail1; - } - if (im->transparent == 257) - { - im->transparent = (-1); - } - } - GD2_DBG (printf - ("Pallette had %d colours (T=%d)\n", im->colorsTotal, - im->transparent)); - if (im->trueColor) - { - return TRUE; - } - for (i = 0; (i < gdMaxColors); i++) - { - if (!gdGetByte (&im->red[i], in)) - { - goto fail1; - } - if (!gdGetByte (&im->green[i], in)) - { - goto fail1; - } - if (!gdGetByte (&im->blue[i], in)) - { - goto fail1; - } - if (gd2xFlag) - { - if (!gdGetByte (&im->alpha[i], in)) - { - goto fail1; - } - } - } - - for (i = 0; (i < im->colorsTotal); i++) - { - im->open[i] = 0; - }; - - return TRUE; -fail1: - return FALSE; -} - -/* */ -/* Use the common basic header info to make the image object. */ -/* */ -static gdImagePtr -_gdCreateFromFile (gdIOCtx * in, int *sx, int *sy) -{ - gdImagePtr im; - int gd2xFlag = 0; - int trueColorFlag = 0; - if (!gdGetWord (sx, in)) - { - goto fail1; - } - if ((*sx == 65535) || (*sx == 65534)) - { - /* This is a gd 2.0 .gd file */ - gd2xFlag = 1; - /* 2.0.12: 65534 signals a truecolor .gd file. - There is a slight redundancy here but we can - live with it. */ - if (*sx == 65534) - { - trueColorFlag = 1; - } - if (!gdGetWord (sx, in)) - { - goto fail1; - } - } - if (!gdGetWord (sy, in)) - { - goto fail1; - } - - GD2_DBG (printf ("Image is %dx%d\n", *sx, *sy)); - if (trueColorFlag) - { - im = gdImageCreateTrueColor (*sx, *sy); - } - else - { - im = gdImageCreate (*sx, *sy); - } - if (!_gdGetColors (in, im, gd2xFlag)) - { - goto fail2; - } - - return im; -fail2: - gdImageDestroy (im); -fail1: - return 0; -} - -gdImagePtr -gdImageCreateFromGd (FILE * inFile) -{ - gdImagePtr im; - gdIOCtx *in; - - in = gdNewFileCtx (inFile); - im = gdImageCreateFromGdCtx (in); - - in->gd_free (in); - - return im; -} - -gdImagePtr -gdImageCreateFromGdCtx (gdIOCtxPtr in) -{ - int sx, sy; - int x, y; - gdImagePtr im; - - /* Read the header */ - im = _gdCreateFromFile (in, &sx, &sy); - - if (im == NULL) - { - goto fail1; - }; - - /* Then the data... */ - /* 2.0.12: support truecolor properly in .gd as well as in .gd2. - Problem reported by Andreas Pfaller. */ - if (im->trueColor) - { - for (y = 0; (y < sy); y++) - { - for (x = 0; (x < sx); x++) - { - int pix; - if (!gdGetInt (&pix, in)) - { - goto fail2; - } - im->tpixels[y][x] = pix; - } - } - } - else - { - for (y = 0; (y < sy); y++) - { - for (x = 0; (x < sx); x++) - { - int ch; - ch = gdGetC (in); - if (ch == EOF) - { - goto fail2; - } - /* ROW-MAJOR IN GD 1.3 */ - im->pixels[y][x] = ch; - } - } - } - return im; - -fail2: - gdImageDestroy (im); -fail1: - return 0; -} - -void -_gdPutColors (gdImagePtr im, gdIOCtx * out) -{ - int i; - - gdPutC (im->trueColor, out); - if (!im->trueColor) - { - gdPutWord (im->colorsTotal, out); - } - gdPutInt (im->transparent, out); - if (!im->trueColor) - { - for (i = 0; (i < gdMaxColors); i++) - { - gdPutC ((unsigned char) im->red[i], out); - gdPutC ((unsigned char) im->green[i], out); - gdPutC ((unsigned char) im->blue[i], out); - gdPutC ((unsigned char) im->alpha[i], out); - } - } -} - -static void -_gdPutHeader (gdImagePtr im, gdIOCtx * out) -{ - /* 65535 indicates this is a gd 2.x .gd file. - 2.0.12: 65534 indicates truecolor. */ - if (im->trueColor) - { - gdPutWord (65534, out); - } - else - { - gdPutWord (65535, out); - } - gdPutWord (im->sx, out); - gdPutWord (im->sy, out); - - _gdPutColors (im, out); - -} - -static void -_gdImageGd (gdImagePtr im, gdIOCtx * out) -{ - int x, y; - - _gdPutHeader (im, out); - - for (y = 0; (y < im->sy); y++) - { - for (x = 0; (x < im->sx); x++) - { - /* ROW-MAJOR IN GD 1.3 */ - if (im->trueColor) - { - gdPutInt (im->tpixels[y][x], out); - } - else - { - gdPutC ((unsigned char) im->pixels[y][x], out); - } - } - } -} - -void -gdImageGd (gdImagePtr im, FILE * outFile) -{ - gdIOCtx *out = gdNewFileCtx (outFile); - _gdImageGd (im, out); - out->gd_free (out); -} - -void * -gdImageGdPtr (gdImagePtr im, int *size) -{ - void *rv; - gdIOCtx *out = gdNewDynamicCtx (2048, NULL); - _gdImageGd (im, out); - rv = gdDPExtractData (out, size); - out->gd_free (out); - return rv; -} diff --git a/collects/plot/src/all/gd_gd2.c b/collects/plot/src/all/gd_gd2.c deleted file mode 100644 index ab6af3da3e..0000000000 --- a/collects/plot/src/all/gd_gd2.c +++ /dev/null @@ -1,1016 +0,0 @@ -/* - * gd_gd2.c - * - * Implements the I/O and support for the GD2 format. - * - * Changing the definition of GD2_DBG (below) will cause copious messages - * to be displayed while it processes requests. - * - * Designed, Written & Copyright 1999, Philip Warner. - * - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include -#include -#include "gd.h" -#include "gdhelpers.h" - -/* 2.03: gd2 is no longer mandatory */ -/* JCE - test after including gd.h so that HAVE_LIBZ can be set in - * a config.h file included by gd.h */ -#ifdef HAVE_LIBZ -#include - -#define TRUE 1 -#define FALSE 0 - -/* 2.11: not part of the API, as the save routine can figure it out - from im->trueColor, and the load routine doesn't need to tell - the end user the saved format. NOTE: adding 2 is assumed - to result in the correct format value for truecolor! */ -#define GD2_FMT_TRUECOLOR_RAW 3 -#define GD2_FMT_TRUECOLOR_COMPRESSED 4 - -#define gd2_compressed(fmt) (((fmt) == GD2_FMT_COMPRESSED) || \ - ((fmt) == GD2_FMT_TRUECOLOR_COMPRESSED)) - -#define gd2_truecolor(fmt) (((fmt) == GD2_FMT_TRUECOLOR_RAW) || \ - ((fmt) == GD2_FMT_TRUECOLOR_COMPRESSED)) - -/* Use this for commenting out debug-print statements. */ -/* Just use the first '#define' to allow all the prints... */ -/*#define GD2_DBG(s) (s) */ -#define GD2_DBG(s) - -typedef struct -{ - int offset; - int size; -} -t_chunk_info; - -extern int _gdGetColors (gdIOCtx * in, gdImagePtr im, int gd2xFlag); -extern void _gdPutColors (gdImagePtr im, gdIOCtx * out); - -/* */ -/* Read the extra info in the gd2 header. */ -/* */ -static int -_gd2GetHeader (gdIOCtxPtr in, int *sx, int *sy, - int *cs, int *vers, int *fmt, int *ncx, int *ncy, - t_chunk_info ** chunkIdx) -{ - int i; - int ch; - char id[5]; - t_chunk_info *cidx; - int sidx; - int nc; - - GD2_DBG (printf ("Reading gd2 header info\n")); - - for (i = 0; i < 4; i++) - { - ch = gdGetC (in); - if (ch == EOF) - { - goto fail1; - }; - id[i] = ch; - }; - id[4] = 0; - - GD2_DBG (printf ("Got file code: %s\n", id)); - - /* Equiv. of 'magick'. */ - if (strcmp (id, GD2_ID) != 0) - { - GD2_DBG (printf ("Not a valid gd2 file\n")); - goto fail1; - }; - - /* Version */ - if (gdGetWord (vers, in) != 1) - { - goto fail1; - }; - GD2_DBG (printf ("Version: %d\n", *vers)); - - if ((*vers != 1) && (*vers != 2)) - { - GD2_DBG (printf ("Bad version: %d\n", *vers)); - goto fail1; - }; - - /* Image Size */ - if (!gdGetWord (sx, in)) - { - GD2_DBG (printf ("Could not get x-size\n")); - goto fail1; - } - if (!gdGetWord (sy, in)) - { - GD2_DBG (printf ("Could not get y-size\n")); - goto fail1; - } - GD2_DBG (printf ("Image is %dx%d\n", *sx, *sy)); - - /* Chunk Size (pixels, not bytes!) */ - if (gdGetWord (cs, in) != 1) - { - goto fail1; - }; - GD2_DBG (printf ("ChunkSize: %d\n", *cs)); - - if ((*cs < GD2_CHUNKSIZE_MIN) || (*cs > GD2_CHUNKSIZE_MAX)) - { - GD2_DBG (printf ("Bad chunk size: %d\n", *cs)); - goto fail1; - }; - - /* Data Format */ - if (gdGetWord (fmt, in) != 1) - { - goto fail1; - }; - GD2_DBG (printf ("Format: %d\n", *fmt)); - - if ((*fmt != GD2_FMT_RAW) && (*fmt != GD2_FMT_COMPRESSED) && - (*fmt != GD2_FMT_TRUECOLOR_RAW) && - (*fmt != GD2_FMT_TRUECOLOR_COMPRESSED)) - { - GD2_DBG (printf ("Bad data format: %d\n", *fmt)); - goto fail1; - }; - - - /* # of chunks wide */ - if (gdGetWord (ncx, in) != 1) - { - goto fail1; - }; - GD2_DBG (printf ("%d Chunks Wide\n", *ncx)); - - /* # of chunks high */ - if (gdGetWord (ncy, in) != 1) - { - goto fail1; - }; - GD2_DBG (printf ("%d Chunks vertically\n", *ncy)); - - if (gd2_compressed (*fmt)) - { - nc = (*ncx) * (*ncy); - GD2_DBG (printf ("Reading %d chunk index entries\n", nc)); - sidx = sizeof (t_chunk_info) * nc; - cidx = gdCalloc (sidx, 1); - for (i = 0; i < nc; i++) - { - if (gdGetInt (&cidx[i].offset, in) != 1) - { - goto fail1; - }; - if (gdGetInt (&cidx[i].size, in) != 1) - { - goto fail1; - }; - }; - *chunkIdx = cidx; - }; - - GD2_DBG (printf ("gd2 header complete\n")); - - return 1; - -fail1: - return 0; -} - -static gdImagePtr -_gd2CreateFromFile (gdIOCtxPtr in, int *sx, int *sy, - int *cs, int *vers, int *fmt, - int *ncx, int *ncy, t_chunk_info ** cidx) -{ - gdImagePtr im; - - if (_gd2GetHeader (in, sx, sy, cs, vers, fmt, ncx, ncy, cidx) != 1) - { - GD2_DBG (printf ("Bad GD2 header\n")); - goto fail1; - } - if (gd2_truecolor (*fmt)) - { - im = gdImageCreateTrueColor (*sx, *sy); - } - else - { - im = gdImageCreate (*sx, *sy); - } - if (im == NULL) - { - GD2_DBG (printf ("Could not create gdImage\n")); - goto fail1; - }; - - if (!_gdGetColors (in, im, (*vers) == 2)) - { - GD2_DBG (printf ("Could not read color palette\n")); - goto fail2; - } - GD2_DBG (printf ("Image palette completed: %d colours\n", im->colorsTotal)); - - return im; - -fail2: - gdImageDestroy (im); - return 0; - -fail1: - return 0; - -} - -static int -_gd2ReadChunk (int offset, char *compBuf, int compSize, char *chunkBuf, - uLongf * chunkLen, gdIOCtx * in) -{ - int zerr; - - if (gdTell (in) != offset) - { - GD2_DBG (printf ("Positioning in file to %d\n", offset)); - gdSeek (in, offset); - } - else - { - GD2_DBG (printf ("Already Positioned in file to %d\n", offset)); - }; - - /* Read and uncompress an entire chunk. */ - GD2_DBG (printf ("Reading file\n")); - if (gdGetBuf (compBuf, compSize, in) != compSize) - { - return FALSE; - }; - GD2_DBG (printf - ("Got %d bytes. Uncompressing into buffer of %d bytes\n", compSize, - *chunkLen)); - zerr = - uncompress ((unsigned char *) chunkBuf, chunkLen, - (unsigned char *) compBuf, compSize); - if (zerr != Z_OK) - { - GD2_DBG (printf ("Error %d from uncompress\n", zerr)); - return FALSE; - }; - GD2_DBG (printf ("Got chunk\n")); - return TRUE; -} - -gdImagePtr -gdImageCreateFromGd2 (FILE * inFile) -{ - gdIOCtx *in = gdNewFileCtx (inFile); - gdImagePtr im; - - im = gdImageCreateFromGd2Ctx (in); - - in->gd_free (in); - - return im; -} - -gdImagePtr -gdImageCreateFromGd2Ctx (gdIOCtxPtr in) -{ - int sx, sy; - int i; - int ncx, ncy, nc, cs, cx, cy; - int x, y, ylo, yhi, xlo, xhi; - int vers, fmt; - t_chunk_info *chunkIdx = NULL; /* So we can gdFree it with impunity. */ - unsigned char *chunkBuf = NULL; /* So we can gdFree it with impunity. */ - int chunkNum = 0; - int chunkMax = 0; - uLongf chunkLen; - int chunkPos = 0; - int compMax = 0; - int bytesPerPixel; - char *compBuf = NULL; /* So we can gdFree it with impunity. */ - - gdImagePtr im; - - /* Get the header */ - im = - _gd2CreateFromFile (in, &sx, &sy, &cs, &vers, &fmt, &ncx, &ncy, - &chunkIdx); - - if (im == NULL) - { - return 0; - }; - bytesPerPixel = im->trueColor ? 4 : 1; - nc = ncx * ncy; - - if (gd2_compressed (fmt)) - { - /* Find the maximum compressed chunk size. */ - compMax = 0; - for (i = 0; (i < nc); i++) - { - if (chunkIdx[i].size > compMax) - { - compMax = chunkIdx[i].size; - }; - }; - compMax++; - - /* Allocate buffers */ - chunkMax = cs * bytesPerPixel * cs; - chunkBuf = gdCalloc (chunkMax, 1); - compBuf = gdCalloc (compMax, 1); - GD2_DBG (printf ("Largest compressed chunk is %d bytes\n", compMax)); - }; - -/* if ( (ncx != sx / cs) || (ncy != sy / cs)) { */ -/* goto fail2; */ -/* }; */ - - /* Read the data... */ - for (cy = 0; (cy < ncy); cy++) - { - for (cx = 0; (cx < ncx); cx++) - { - - ylo = cy * cs; - yhi = ylo + cs; - if (yhi > im->sy) - { - yhi = im->sy; - }; - - GD2_DBG (printf - ("Processing Chunk %d (%d, %d), y from %d to %d\n", - chunkNum, cx, cy, ylo, yhi)); - - if (gd2_compressed (fmt)) - { - - chunkLen = chunkMax; - - if (!_gd2ReadChunk (chunkIdx[chunkNum].offset, - compBuf, - chunkIdx[chunkNum].size, - (char *) chunkBuf, &chunkLen, in)) - { - GD2_DBG (printf ("Error reading comproessed chunk\n")); - goto fail2; - }; - - chunkPos = 0; - }; - - for (y = ylo; (y < yhi); y++) - { - - xlo = cx * cs; - xhi = xlo + cs; - if (xhi > im->sx) - { - xhi = im->sx; - }; - /*GD2_DBG(printf("y=%d: ",y)); */ - if (!gd2_compressed (fmt)) - { - for (x = xlo; x < xhi; x++) - { - - if (im->trueColor) - { - if (!gdGetInt (&im->tpixels[y][x], in)) - { - /*printf("EOF while reading\n"); */ - /*gdImageDestroy(im); */ - /*return 0; */ - im->tpixels[y][x] = 0; - } - } - else - { - int ch; - if (!gdGetByte (&ch, in)) - { - /*printf("EOF while reading\n"); */ - /*gdImageDestroy(im); */ - /*return 0; */ - ch = 0; - } - im->pixels[y][x] = ch; - } - } - } - else - { - for (x = xlo; x < xhi; x++) - { - if (im->trueColor) - { - /* 2.0.1: work around a gcc bug by being verbose. - TBB */ - int a = chunkBuf[chunkPos++] << 24; - int r = chunkBuf[chunkPos++] << 16; - int g = chunkBuf[chunkPos++] << 8; - int b = chunkBuf[chunkPos++]; - /* 2.0.11: tpixels */ - im->tpixels[y][x] = a + r + g + b; - } - else - { - im->pixels[y][x] = chunkBuf[chunkPos++]; - } - }; - }; - /*GD2_DBG(printf("\n")); */ - }; - chunkNum++; - }; - }; - - GD2_DBG (printf ("Freeing memory\n")); - - gdFree (chunkBuf); - gdFree (compBuf); - gdFree (chunkIdx); - - GD2_DBG (printf ("Done\n")); - - return im; - -fail2: - gdImageDestroy (im); - gdFree (chunkBuf); - gdFree (compBuf); - gdFree (chunkIdx); - return 0; - -} - -gdImagePtr -gdImageCreateFromGd2Part (FILE * inFile, int srcx, int srcy, int w, int h) -{ - gdImagePtr im; - gdIOCtx *in = gdNewFileCtx (inFile); - - im = gdImageCreateFromGd2PartCtx (in, srcx, srcy, w, h); - - in->gd_free (in); - - return im; -} - -gdImagePtr -gdImageCreateFromGd2PartCtx (gdIOCtx * in, int srcx, int srcy, int w, int h) -{ - int scx, scy, ecx, ecy, fsx, fsy; - int nc, ncx, ncy, cs, cx, cy; - int x, y, ylo, yhi, xlo, xhi; - int dstart, dpos; - int i; - /* 2.0.12: unsigned is correct; fixes problems with color munging. - Thanks to Steven Brown. */ - unsigned int ch; - int vers, fmt; - t_chunk_info *chunkIdx = NULL; - unsigned char *chunkBuf = NULL; - int chunkNum; - int chunkMax = 0; - uLongf chunkLen; - int chunkPos = 0; - int compMax; - char *compBuf = NULL; - - gdImagePtr im; - - /* */ - /* The next few lines are basically copied from gd2CreateFromFile */ - /* - we change the file size, so don't want to use the code directly. */ - /* but we do need to know the file size. */ - /* */ - if (_gd2GetHeader (in, &fsx, &fsy, &cs, &vers, &fmt, &ncx, &ncy, &chunkIdx) - != 1) - { - goto fail1; - } - - GD2_DBG (printf ("File size is %dx%d\n", fsx, fsy)); - - /* This is the difference - make a file based on size of chunks. */ - if (gd2_truecolor (fmt)) - { - im = gdImageCreateTrueColor (w, h); - } - else - { - im = gdImageCreate (w, h); - } - if (im == NULL) - { - goto fail1; - }; - - if (!_gdGetColors (in, im, vers == 2)) - { - goto fail2; - } - GD2_DBG (printf ("Image palette completed: %d colours\n", im->colorsTotal)); - - /* Process the header info */ - nc = ncx * ncy; - - if (gd2_compressed (fmt)) - { - /* Find the maximum compressed chunk size. */ - compMax = 0; - for (i = 0; (i < nc); i++) - { - if (chunkIdx[i].size > compMax) - { - compMax = chunkIdx[i].size; - }; - }; - compMax++; - - if (im->trueColor) - { - chunkMax = cs * cs * 4; - } - else - { - chunkMax = cs * cs; - } - chunkBuf = gdCalloc (chunkMax, 1); - compBuf = gdCalloc (compMax, 1); - }; - -/* Don't bother with this... */ -/* if ( (ncx != sx / cs) || (ncy != sy / cs)) { */ -/* goto fail2; */ -/* }; */ - - - /* Work out start/end chunks */ - scx = srcx / cs; - scy = srcy / cs; - if (scx < 0) - { - scx = 0; - }; - if (scy < 0) - { - scy = 0; - }; - - ecx = (srcx + w) / cs; - ecy = (srcy + h) / cs; - if (ecx >= ncx) - { - ecx = ncx - 1; - }; - if (ecy >= ncy) - { - ecy = ncy - 1; - }; - - /* Remember file position of image data. */ - dstart = gdTell (in); - GD2_DBG (printf ("Data starts at %d\n", dstart)); - - /* Loop through the chunks. */ - for (cy = scy; (cy <= ecy); cy++) - { - - ylo = cy * cs; - yhi = ylo + cs; - if (yhi > fsy) - { - yhi = fsy; - }; - - for (cx = scx; (cx <= ecx); cx++) - { - - xlo = cx * cs; - xhi = xlo + cs; - if (xhi > fsx) - { - xhi = fsx; - }; - - GD2_DBG (printf - ("Processing Chunk (%d, %d), from %d to %d\n", cx, cy, ylo, - yhi)); - - if (!gd2_compressed (fmt)) - { - GD2_DBG (printf ("Using raw format data\n")); - if (im->trueColor) - { - dpos = - (cy * (cs * fsx) * 4 + cx * cs * (yhi - ylo) * 4) + - dstart; - } - else - { - dpos = cy * (cs * fsx) + cx * cs * (yhi - ylo) + dstart; - } - /* gd 2.0.11: gdSeek returns TRUE on success, not 0. - Longstanding bug. 01/16/03 */ - if (!gdSeek (in, dpos)) - { - printf ("Error from seek: %d\n", errno); - goto fail2; - }; - GD2_DBG (printf - ("Reading (%d, %d) from position %d\n", cx, cy, - dpos - dstart)); - } - else - { - chunkNum = cx + cy * ncx; - - chunkLen = chunkMax; - if (!_gd2ReadChunk (chunkIdx[chunkNum].offset, - compBuf, - chunkIdx[chunkNum].size, - (char*) chunkBuf, &chunkLen, in)) - { - printf ("Error reading comproessed chunk\n"); - goto fail2; - }; - chunkPos = 0; - GD2_DBG (printf - ("Reading (%d, %d) from chunk %d\n", cx, cy, - chunkNum)); - }; - - GD2_DBG (printf - (" into (%d, %d) - (%d, %d)\n", xlo, ylo, xhi, yhi)); - for (y = ylo; (y < yhi); y++) - { - - for (x = xlo; x < xhi; x++) - { - if (!gd2_compressed (fmt)) - { - if (im->trueColor) - { - if (!gdGetInt ( (int*) &ch, in)) - { - ch = 0; - /*printf("EOF while reading file\n"); */ - /*goto fail2; */ - } - } - else - { - ch = gdGetC (in); - if (ch == EOF) - { - ch = 0; - /*printf("EOF while reading file\n"); */ - /*goto fail2; */ - } - } - } - else - { - if (im->trueColor) - { - ch = chunkBuf[chunkPos++]; - ch = (ch << 8) + chunkBuf[chunkPos++]; - ch = (ch << 8) + chunkBuf[chunkPos++]; - ch = (ch << 8) + chunkBuf[chunkPos++]; - } - else - { - ch = chunkBuf[chunkPos++]; - } - }; - - /* Only use a point that is in the image. */ - if ((x >= srcx) && (x < (srcx + w)) && (x < fsx) && (x >= 0) - && (y >= srcy) && (y < (srcy + h)) && (y < fsy) - && (y >= 0)) - { - /* 2.0.11: tpixels */ - if (im->trueColor) - { - im->tpixels[y - srcy][x - srcx] = ch; - } - else - { - im->pixels[y - srcy][x - srcx] = ch; - } - } - }; - }; - }; - }; - - gdFree (chunkBuf); - gdFree (compBuf); - gdFree (chunkIdx); - - return im; - -fail2: - gdImageDestroy (im); -fail1: - gdFree (chunkBuf); - gdFree (compBuf); - gdFree (chunkIdx); - - return 0; - -} - -static void -_gd2PutHeader (gdImagePtr im, gdIOCtx * out, int cs, int fmt, int cx, int cy) -{ - int i; - - /* Send the gd2 id, to verify file format. */ - for (i = 0; i < 4; i++) - { - gdPutC ((unsigned char) (GD2_ID[i]), out); - }; - - /* */ - /* We put the version info first, so future versions can easily change header info. */ - /* */ - gdPutWord (GD2_VERS, out); - gdPutWord (im->sx, out); - gdPutWord (im->sy, out); - gdPutWord (cs, out); - gdPutWord (fmt, out); - gdPutWord (cx, out); - gdPutWord (cy, out); - -} - -static void -_gdImageGd2 (gdImagePtr im, gdIOCtx * out, int cs, int fmt) -{ - int ncx, ncy, cx, cy; - int x, y, ylo, yhi, xlo, xhi; - int chunkLen; - int chunkNum = 0; - char *chunkData = NULL; /* So we can gdFree it with impunity. */ - char *compData = NULL; /* So we can gdFree it with impunity. */ - uLongf compLen; - int idxPos = 0; - int idxSize; - t_chunk_info *chunkIdx = NULL; - int posSave; - int bytesPerPixel = im->trueColor ? 4 : 1; - int compMax = 0; - - /*printf("Trying to write GD2 file\n"); */ - - /* */ - /* Force fmt to a valid value since we don't return anything. */ - /* */ - if ((fmt != GD2_FMT_RAW) && (fmt != GD2_FMT_COMPRESSED)) - { - fmt = im->trueColor ? GD2_FMT_TRUECOLOR_COMPRESSED : GD2_FMT_COMPRESSED; - }; - if (im->trueColor) - { - fmt += 2; - } - /* */ - /* Make sure chunk size is valid. These are arbitrary values; 64 because it seems */ - /* a little silly to expect performance improvements on a 64x64 bit scale, and */ - /* 4096 because we buffer one chunk, and a 16MB buffer seems a little large - it may be */ - /* OK for one user, but for another to read it, they require the buffer. */ - /* */ - if (cs == 0) - { - cs = GD2_CHUNKSIZE; - } - else if (cs < GD2_CHUNKSIZE_MIN) - { - cs = GD2_CHUNKSIZE_MIN; - } - else if (cs > GD2_CHUNKSIZE_MAX) - { - cs = GD2_CHUNKSIZE_MAX; - }; - - /* Work out number of chunks. */ - ncx = im->sx / cs + 1; - ncy = im->sy / cs + 1; - - /* Write the standard header. */ - _gd2PutHeader (im, out, cs, fmt, ncx, ncy); - - if (gd2_compressed (fmt)) - { - /* */ - /* Work out size of buffer for compressed data, If CHUNKSIZE is large, */ - /* then these will be large! */ - /* */ - /* The zlib notes say output buffer size should be (input size) * 1.01 * 12 */ - /* - we'll use 1.02 to be paranoid. */ - /* */ - compMax = cs * bytesPerPixel * cs * 1.02 + 12; - - /* */ - /* Allocate the buffers. */ - /* */ - chunkData = gdCalloc (cs * bytesPerPixel * cs, 1); - compData = gdCalloc (compMax, 1); - - /* */ - /* Save the file position of chunk index, and allocate enough space for */ - /* each chunk_info block . */ - /* */ - idxPos = gdTell (out); - idxSize = ncx * ncy * sizeof (t_chunk_info); - GD2_DBG (printf ("Index size is %d\n", idxSize)); - gdSeek (out, idxPos + idxSize); - - chunkIdx = gdCalloc (idxSize * sizeof (t_chunk_info), 1); - }; - - _gdPutColors (im, out); - - GD2_DBG (printf ("Size: %dx%d\n", im->sx, im->sy)); - GD2_DBG (printf ("Chunks: %dx%d\n", ncx, ncy)); - - for (cy = 0; (cy < ncy); cy++) - { - for (cx = 0; (cx < ncx); cx++) - { - - ylo = cy * cs; - yhi = ylo + cs; - if (yhi > im->sy) - { - yhi = im->sy; - }; - - GD2_DBG (printf - ("Processing Chunk (%dx%d), y from %d to %d\n", cx, cy, - ylo, yhi)); - chunkLen = 0; - for (y = ylo; (y < yhi); y++) - { - - /*GD2_DBG(printf("y=%d: ",y)); */ - - xlo = cx * cs; - xhi = xlo + cs; - if (xhi > im->sx) - { - xhi = im->sx; - }; - - if (gd2_compressed (fmt)) - { - for (x = xlo; x < xhi; x++) - { - /* 2.0.11: use truecolor pixel array. TBB */ - /*GD2_DBG(printf("%d...",x)); */ - if (im->trueColor) - { - int p = im->tpixels[y][x]; - chunkData[chunkLen++] = gdTrueColorGetAlpha (p); - chunkData[chunkLen++] = gdTrueColorGetRed (p); - chunkData[chunkLen++] = gdTrueColorGetGreen (p); - chunkData[chunkLen++] = gdTrueColorGetBlue (p); - } - else - { - int p = im->pixels[y][x]; - chunkData[chunkLen++] = p; - } - }; - } - else - { - for (x = xlo; x < xhi; x++) - { - /*GD2_DBG(printf("%d, ",x)); */ - - if (im->trueColor) - { - gdPutInt (im->tpixels[y][x], out); - } - else - { - gdPutC ((unsigned char) im->pixels[y][x], out); - } - }; - }; - /*GD2_DBG(printf("y=%d done.\n",y)); */ - }; - if (gd2_compressed (fmt)) - { - compLen = compMax; - if (compress ((unsigned char *) - &compData[0], &compLen, - (unsigned char *) &chunkData[0], - chunkLen) != Z_OK) - { - printf ("Error from compressing\n"); - } - else - { - chunkIdx[chunkNum].offset = gdTell (out); - chunkIdx[chunkNum++].size = compLen; - GD2_DBG (printf - ("Chunk %d size %d offset %d\n", chunkNum, - chunkIdx[chunkNum - 1].size, - chunkIdx[chunkNum - 1].offset)); - - if (gdPutBuf (compData, compLen, out) <= 0) - { - /* Any alternate suggestions for handling this? */ - printf ("Error %d on write\n", errno); - }; - }; - }; - }; - }; - if (gd2_compressed (fmt)) - { - /* Save the position, write the index, restore position (paranoia). */ - GD2_DBG (printf ("Seeking %d to write index\n", idxPos)); - posSave = gdTell (out); - gdSeek (out, idxPos); - GD2_DBG (printf ("Writing index\n")); - for (x = 0; x < chunkNum; x++) - { - GD2_DBG (printf - ("Chunk %d size %d offset %d\n", x, chunkIdx[x].size, - chunkIdx[x].offset)); - gdPutInt (chunkIdx[x].offset, out); - gdPutInt (chunkIdx[x].size, out); - }; - /* We don't use fwrite for *endian reasons. */ - /*fwrite(chunkIdx, sizeof(int)*2, chunkNum, out); */ - gdSeek (out, posSave); - }; - - GD2_DBG (printf ("Freeing memory\n")); - gdFree (chunkData); - gdFree (compData); - gdFree (chunkIdx); - GD2_DBG (printf ("Done\n")); - - /*printf("Memory block size is %d\n",gdTell(out)); */ - -} - -void -gdImageGd2 (gdImagePtr im, FILE * outFile, int cs, int fmt) -{ - gdIOCtx *out = gdNewFileCtx (outFile); - _gdImageGd2 (im, out, cs, fmt); - out->gd_free (out); -} - -void * -gdImageGd2Ptr (gdImagePtr im, int cs, int fmt, int *size) -{ - void *rv; - gdIOCtx *out = gdNewDynamicCtx (2048, NULL); - _gdImageGd2 (im, out, cs, fmt); - rv = gdDPExtractData (out, size); - out->gd_free (out); - return rv; -} - -#else /* no HAVE_LIBZ */ -gdImagePtr -gdImageCreateFromGd2 (FILE * inFile) -{ - fprintf (stderr, "GD2 support is not available - no libz\n"); - return NULL; -} - -gdImagePtr -gdImageCreateFromGd2Ctx (gdIOCtxPtr in) -{ - fprintf (stderr, "GD2 support is not available - no libz\n"); - return NULL; -} -#endif /* HAVE_LIBZ */ diff --git a/collects/plot/src/all/gd_io.c b/collects/plot/src/all/gd_io.c deleted file mode 100644 index 5848fd9ddd..0000000000 --- a/collects/plot/src/all/gd_io.c +++ /dev/null @@ -1,179 +0,0 @@ - - -/* - * io.c - * - * Implements the imple I/O 'helper' routines. - * - * Not really essential, but these routines were used extensively in GD, - * so they were moved here. They also make IOCtx calls look better... - * - * Written (or, at least, moved) 1999, Philip Warner. - * - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include "gd.h" - -/* Use this for commenting out debug-print statements. */ -/* Just use the first '#define' to allow all the prints... */ -/*#define IO_DBG(s) (s) */ -#define IO_DBG(s) - - -/* - * Write out a word to the I/O context pointer - */ -void -Putword (int w, gdIOCtx * ctx) -{ - unsigned char buf[2]; - buf[0] = w & 0xff; - buf[1] = (w / 256) & 0xff; - (ctx->putBuf) (ctx, (char *) buf, 2); -} - -void -Putchar (int c, gdIOCtx * ctx) -{ - (ctx->putC) (ctx, c & 0xff); -} - -void -gdPutC (const unsigned char c, gdIOCtx * ctx) -{ - (ctx->putC) (ctx, c); -} - -void -gdPutWord (int w, gdIOCtx * ctx) -{ - IO_DBG (printf ("Putting word...\n")); - (ctx->putC) (ctx, (unsigned char) (w >> 8)); - (ctx->putC) (ctx, (unsigned char) (w & 0xFF)); - IO_DBG (printf ("put.\n")); -} - -void -gdPutInt (int w, gdIOCtx * ctx) -{ - IO_DBG (printf ("Putting int...\n")); - (ctx->putC) (ctx, (unsigned char) (w >> 24)); - (ctx->putC) (ctx, (unsigned char) ((w >> 16) & 0xFF)); - (ctx->putC) (ctx, (unsigned char) ((w >> 8) & 0xFF)); - (ctx->putC) (ctx, (unsigned char) (w & 0xFF)); - IO_DBG (printf ("put.\n")); -} - -int -gdGetC (gdIOCtx * ctx) -{ - return ((ctx->getC) (ctx)); -} - - - -int -gdGetByte (int *result, gdIOCtx * ctx) -{ - int r; - r = (ctx->getC) (ctx); - if (r == EOF) - { - return 0; - } - *result = r; - return 1; -} - -int -gdGetWord (int *result, gdIOCtx * ctx) -{ - int r; - r = (ctx->getC) (ctx); - if (r == EOF) - { - return 0; - } - *result = r << 8; - r = (ctx->getC) (ctx); - if (r == EOF) - { - return 0; - } - *result += r; - return 1; -} - - -int -gdGetInt (int *result, gdIOCtx * ctx) -{ - int r; - r = (ctx->getC) (ctx); - if (r == EOF) - { - return 0; - } - *result = r << 24; - - r = (ctx->getC) (ctx); - if (r == EOF) - { - return 0; - } - *result += r << 16; - - r = (ctx->getC) (ctx); - if (r == EOF) - { - return 0; - } - *result += r << 8; - - r = (ctx->getC) (ctx); - if (r == EOF) - { - return 0; - } - *result += r; - - return 1; -} - -int -gdPutBuf (const void *buf, int size, gdIOCtx * ctx) -{ - IO_DBG (printf ("Putting buf...\n")); - return (ctx->putBuf) (ctx, buf, size); - IO_DBG (printf ("put.\n")); -} - -int -gdGetBuf (void *buf, int size, gdIOCtx * ctx) -{ - return (ctx->getBuf) (ctx, buf, size); -} - - -int -gdSeek (gdIOCtx * ctx, const int pos) -{ - IO_DBG (printf ("Seeking...\n")); - return ((ctx->seek) (ctx, pos)); - IO_DBG (printf ("Done.\n")); -} - -long -gdTell (gdIOCtx * ctx) -{ - IO_DBG (printf ("Telling...\n")); - return ((ctx->tell) (ctx)); - IO_DBG (printf ("told.\n")); -} diff --git a/collects/plot/src/all/gd_io.h b/collects/plot/src/all/gd_io.h deleted file mode 100644 index cfe7aab70c..0000000000 --- a/collects/plot/src/all/gd_io.h +++ /dev/null @@ -1,47 +0,0 @@ -#ifndef GD_IO_H -#define GD_IO_H 1 - -#include - -#ifdef VMS -#define Putchar gdPutchar -#endif - -typedef struct gdIOCtx -{ - int (*getC) (struct gdIOCtx *); - int (*getBuf) (struct gdIOCtx *, void *, int); - - void (*putC) (struct gdIOCtx *, int); - int (*putBuf) (struct gdIOCtx *, const void *, int); - - /* seek must return 1 on SUCCESS, 0 on FAILURE. Unlike fseek! */ - int (*seek) (struct gdIOCtx *, const int); - - long (*tell) (struct gdIOCtx *); - - void (*gd_free) (struct gdIOCtx *); - -} -gdIOCtx; - -typedef struct gdIOCtx *gdIOCtxPtr; - -void Putword (int w, gdIOCtx * ctx); -void Putchar (int c, gdIOCtx * ctx); - -void gdPutC (const unsigned char c, gdIOCtx * ctx); -int gdPutBuf (const void *, int, gdIOCtx *); -void gdPutWord (int w, gdIOCtx * ctx); -void gdPutInt (int w, gdIOCtx * ctx); - -int gdGetC (gdIOCtx * ctx); -int gdGetBuf (void *, int, gdIOCtx *); -int gdGetByte (int *result, gdIOCtx * ctx); -int gdGetWord (int *result, gdIOCtx * ctx); -int gdGetInt (int *result, gdIOCtx * ctx); - -int gdSeek (gdIOCtx * ctx, const int); -long gdTell (gdIOCtx * ctx); - -#endif diff --git a/collects/plot/src/all/gd_io_dp.c b/collects/plot/src/all/gd_io_dp.c deleted file mode 100644 index 97b5c848ff..0000000000 --- a/collects/plot/src/all/gd_io_dp.c +++ /dev/null @@ -1,421 +0,0 @@ -/* - * io_dp.c - * - * Implements the dynamic pointer interface. - * - * Based on GD.pm code by Lincoln Stein for interfacing to libgd. - * Added support for reading as well as support for 'tell' and 'seek'. - * - * As will all I/O modules, most functions are for local use only (called - * via function pointers in the I/O context). - * - * gdDPExtractData is the exception to this: it will return the pointer to - * the internal data, and reset the internal storage. - * - * Written/Modified 1999, Philip Warner. - * - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include "gd.h" -#include "gdhelpers.h" - -#define TRUE 1 -#define FALSE 0 - -/* this is used for creating images in main memory */ -typedef struct dpStruct -{ - void *data; - int logicalSize; - int realSize; - int dataGood; - int pos; -} -dynamicPtr; - -typedef struct dpIOCtx -{ - gdIOCtx ctx; - dynamicPtr *dp; -} -dpIOCtx; - -typedef struct dpIOCtx *dpIOCtxPtr; - - -/* these functions operate on in-memory dynamic pointers */ -static int allocDynamic (dynamicPtr * dp, int initialSize, void *data); -static int appendDynamic (dynamicPtr * dp, const void *src, int size); -static int gdReallocDynamic (dynamicPtr * dp, int required); -static int trimDynamic (dynamicPtr * dp); -static void gdFreeDynamicCtx (struct gdIOCtx *ctx); -static dynamicPtr *newDynamic (int initialSize, void *data); - -static int dynamicPutbuf (struct gdIOCtx *, const void *, int); -static void dynamicPutchar (struct gdIOCtx *, int a); - -static int dynamicGetbuf (gdIOCtxPtr ctx, void *buf, int len); -static int dynamicGetchar (gdIOCtxPtr ctx); - -static int dynamicSeek (struct gdIOCtx *, const int); -static long dynamicTell (struct gdIOCtx *); - -/* return data as a dynamic pointer */ -gdIOCtx * -gdNewDynamicCtx (int initialSize, void *data) -{ - dpIOCtx *ctx; - dynamicPtr *dp; - - ctx = (dpIOCtx *) gdMalloc (sizeof (dpIOCtx)); - if (ctx == NULL) - { - return NULL; - } - - dp = newDynamic (initialSize, data); - if (!dp) - { - gdFree (ctx); - return NULL; - }; - - ctx->dp = dp; - - ctx->ctx.getC = dynamicGetchar; - ctx->ctx.putC = dynamicPutchar; - - ctx->ctx.getBuf = dynamicGetbuf; - ctx->ctx.putBuf = dynamicPutbuf; - - ctx->ctx.seek = dynamicSeek; - ctx->ctx.tell = dynamicTell; - - ctx->ctx.gd_free = gdFreeDynamicCtx; - - return (gdIOCtx *) ctx; -} - -void * -gdDPExtractData (struct gdIOCtx *ctx, int *size) -{ - dynamicPtr *dp; - dpIOCtx *dctx; - void *data; - - dctx = (dpIOCtx *) ctx; - dp = dctx->dp; - - /* clean up the data block and return it */ - if (dp->dataGood) - { - trimDynamic (dp); - *size = dp->logicalSize; - data = dp->data; - } - else - { - *size = 0; - data = NULL; - if (dp->data != NULL) - { - gdFree (dp->data); - } - } - - dp->data = NULL; - dp->realSize = 0; - dp->logicalSize = 0; - - return data; -} - -static void -gdFreeDynamicCtx (struct gdIOCtx *ctx) -{ - dynamicPtr *dp; - dpIOCtx *dctx; - - dctx = (dpIOCtx *) ctx; - dp = dctx->dp; - - gdFree (ctx); - - /* clean up the data block and return it */ - if (dp->data != NULL) - { - gdFree (dp->data); - dp->data = NULL; - } - - dp->realSize = 0; - dp->logicalSize = 0; - - gdFree (dp); - -} - -static long -dynamicTell (struct gdIOCtx *ctx) -{ - dpIOCtx *dctx; - - dctx = (dpIOCtx *) ctx; - return (dctx->dp->pos); -} - -static int -dynamicSeek (struct gdIOCtx *ctx, const int pos) -{ - int bytesNeeded; - dynamicPtr *dp; - dpIOCtx *dctx; - - dctx = (dpIOCtx *) ctx; - dp = dctx->dp; - - if (!dp->dataGood) - return FALSE; - - bytesNeeded = pos; - if (bytesNeeded > dp->realSize) - { - if (!gdReallocDynamic (dp, dp->realSize * 2)) - { - dp->dataGood = FALSE; - return FALSE; - } - } - - /* if we get here, we can be sure that we have enough bytes - to copy safely */ - - /* Extend the logical size if we seek beyond EOF. */ - if (pos > dp->logicalSize) - { - dp->logicalSize = pos; - }; - - dp->pos = pos; - - return TRUE; -} - -/* return data as a dynamic pointer */ -static dynamicPtr * -newDynamic (int initialSize, void *data) -{ - dynamicPtr *dp; - dp = (dynamicPtr *) gdMalloc (sizeof (dynamicPtr)); - if (dp == NULL) - { - return NULL; - } - - if (!allocDynamic (dp, initialSize, data)) - return NULL; - - dp->pos = 0; - - return dp; -} - -static int -dynamicPutbuf (struct gdIOCtx *ctx, const void *buf, int size) -{ - dpIOCtx *dctx; - dctx = (dpIOCtx *) ctx; - - appendDynamic (dctx->dp, buf, size); - - if (dctx->dp->dataGood) - { - return size; - } - else - { - return -1; - }; - -} - -static void -dynamicPutchar (struct gdIOCtx *ctx, int a) -{ - unsigned char b; - dpIOCtxPtr dctx; - - b = a; - dctx = (dpIOCtxPtr) ctx; - - appendDynamic (dctx->dp, &b, 1); -} - -static int -dynamicGetbuf (gdIOCtxPtr ctx, void *buf, int len) -{ - int rlen, remain; - dpIOCtxPtr dctx; - dynamicPtr *dp; - - dctx = (dpIOCtxPtr) ctx; - dp = dctx->dp; - - remain = dp->logicalSize - dp->pos; - if (remain >= len) - { - rlen = len; - } - else - { - if (remain == 0) - { - return EOF; - } - rlen = remain; - } - - memcpy (buf, (void *) ((char *) dp->data + dp->pos), rlen); - dp->pos += rlen; - - return rlen; -} - -static int -dynamicGetchar (gdIOCtxPtr ctx) -{ - unsigned char b; - int rv; - - rv = dynamicGetbuf (ctx, &b, 1); - - if (rv != 1) - { - return EOF; - } - else - { - return b; /* (b & 0xff); */ - } -} - -/* ********************************************************************* - - * InitDynamic - Return a dynamically resizable void* - * - * ********************************************************************* - */ -static int -allocDynamic (dynamicPtr * dp, int initialSize, void *data) -{ - - if (data == NULL) - { - dp->logicalSize = 0; - dp->dataGood = FALSE; - dp->data = gdMalloc (initialSize); - } - else - { - dp->logicalSize = initialSize; - dp->dataGood = TRUE; - dp->data = data; - } - - if (dp->data != NULL) - { - dp->realSize = initialSize; - dp->dataGood = TRUE; - dp->pos = 0; - return TRUE; - } - else - { - dp->realSize = 0; - return FALSE; - } -} - -/* append bytes to the end of a dynamic pointer */ -static int -appendDynamic (dynamicPtr * dp, const void *src, int size) -{ - int bytesNeeded; - char *tmp; - - if (!dp->dataGood) - return FALSE; - -/* bytesNeeded = dp->logicalSize + size; */ - bytesNeeded = dp->pos + size; - - if (bytesNeeded > dp->realSize) - { - if (!gdReallocDynamic (dp, bytesNeeded * 2)) - { - dp->dataGood = FALSE; - return FALSE; - } - } - - /* if we get here, we can be sure that we have enough bytes - to copy safely */ - /*printf("Mem OK Size: %d, Pos: %d\n", dp->realSize, dp->pos); */ - - tmp = (char *) dp->data; - memcpy ((void *) (tmp + (dp->pos)), src, size); - dp->pos += size; - - if (dp->pos > dp->logicalSize) - { - dp->logicalSize = dp->pos; - }; - - return TRUE; -} - -/* grow (or shrink) dynamic pointer */ -static int -gdReallocDynamic (dynamicPtr * dp, int required) -{ - void *newPtr; - - /* First try gdRealloc(). If that doesn't work, make a new - memory block and copy. */ - if ((newPtr = gdRealloc (dp->data, required))) - { - dp->realSize = required; - dp->data = newPtr; - return TRUE; - } - - /* create a new pointer */ - newPtr = gdMalloc (required); - if (!newPtr) - { - dp->dataGood = FALSE; - return FALSE; - } - - /* copy the old data into it */ - memcpy (newPtr, dp->data, dp->logicalSize); - gdFree (dp->data); - dp->data = newPtr; - - dp->realSize = required; - return TRUE; -} - -/* trim pointer so that its real and logical sizes match */ -static int -trimDynamic (dynamicPtr * dp) -{ - return gdReallocDynamic (dp, dp->logicalSize); -} diff --git a/collects/plot/src/all/gd_io_file.c b/collects/plot/src/all/gd_io_file.c deleted file mode 100644 index 78b8148236..0000000000 --- a/collects/plot/src/all/gd_io_file.c +++ /dev/null @@ -1,147 +0,0 @@ - -/* - * io_file.c - * - * Implements the file interface. - * - * As will all I/O modules, most functions are for local use only (called - * via function pointers in the I/O context). - * - * Most functions are just 'wrappers' for standard file functions. - * - * Written/Modified 1999, Philip Warner. - * - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -/* For platforms with incomplete ANSI defines. Fortunately, - SEEK_SET is defined to be zero by the standard. */ - -#ifndef SEEK_SET -#define SEEK_SET 0 -#endif /* SEEK_SET */ - -#include -#include -#include -#include "gd.h" -#include "gdhelpers.h" - -/* this is used for creating images in main memory */ - -typedef struct fileIOCtx -{ - gdIOCtx ctx; - FILE *f; -} -fileIOCtx; - -struct fileIOCtx *fileIOCtxPtr; - -gdIOCtx *newFileCtx (FILE * f); - -static int fileGetbuf (gdIOCtx *, void *, int); -static int filePutbuf (gdIOCtx *, const void *, int); -static void filePutchar (gdIOCtx *, int); -static int fileGetchar (gdIOCtx * ctx); - -static int fileSeek (struct gdIOCtx *, const int); -static long fileTell (struct gdIOCtx *); -static void gdFreeFileCtx (gdIOCtx * ctx); - -/* return data as a dynamic pointer */ -gdIOCtx * -gdNewFileCtx (FILE * f) -{ - fileIOCtx *ctx; - - ctx = (fileIOCtx *) gdMalloc (sizeof (fileIOCtx)); - if (ctx == NULL) - { - return NULL; - } - - ctx->f = f; - - ctx->ctx.getC = fileGetchar; - ctx->ctx.putC = filePutchar; - - ctx->ctx.getBuf = fileGetbuf; - ctx->ctx.putBuf = filePutbuf; - - ctx->ctx.tell = fileTell; - ctx->ctx.seek = fileSeek; - - ctx->ctx.gd_free = gdFreeFileCtx; - - return (gdIOCtx *) ctx; -} - -static void -gdFreeFileCtx (gdIOCtx * ctx) -{ - gdFree (ctx); -} - - -static int -filePutbuf (gdIOCtx * ctx, const void *buf, int size) -{ - fileIOCtx *fctx; - fctx = (fileIOCtx *) ctx; - - return fwrite (buf, 1, size, fctx->f); - -} - -static int -fileGetbuf (gdIOCtx * ctx, void *buf, int size) -{ - fileIOCtx *fctx; - fctx = (fileIOCtx *) ctx; - - return (fread (buf, 1, size, fctx->f)); - -} - -static void -filePutchar (gdIOCtx * ctx, int a) -{ - unsigned char b; - fileIOCtx *fctx; - fctx = (fileIOCtx *) ctx; - - b = a; - - putc (b, fctx->f); -} - -static int -fileGetchar (gdIOCtx * ctx) -{ - fileIOCtx *fctx; - fctx = (fileIOCtx *) ctx; - - return getc (fctx->f); -} - - -static int -fileSeek (struct gdIOCtx *ctx, const int pos) -{ - fileIOCtx *fctx; - fctx = (fileIOCtx *) ctx; - return (fseek (fctx->f, pos, SEEK_SET) == 0); -} - -static long -fileTell (struct gdIOCtx *ctx) -{ - fileIOCtx *fctx; - fctx = (fileIOCtx *) ctx; - - return ftell (fctx->f); -} diff --git a/collects/plot/src/all/gd_io_ss.c b/collects/plot/src/all/gd_io_ss.c deleted file mode 100644 index 257c1d430b..0000000000 --- a/collects/plot/src/all/gd_io_ss.c +++ /dev/null @@ -1,168 +0,0 @@ - -/* - * io_ss.c - * - * Implements the Source/Sink interface. - * - * As will all I/O modules, most functions are for local use only (called - * via function pointers in the I/O context). - * - * The Source/Sink model is the primary 'user' interface for alternate data - * sources; the IOCtx interface is intended (at least in version 1.5) to be - * used internally until it settles down a bit. - * - * This module just layers the Source/Sink interface on top of the IOCtx; no - * support is provided for tell/seek, so GD2 writing is not possible, and - * retrieving parts of GD2 files is also not possible. - * - * A new SS context does not need to be created with both a Source and a Sink. - * - * Written/Modified 1999, Philip Warner. - * - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include "gd.h" -#include "gdhelpers.h" - -/* this is used for creating images in main memory */ - -typedef struct ssIOCtx -{ - gdIOCtx ctx; - gdSourcePtr src; - gdSinkPtr snk; -} -ssIOCtx; - -typedef struct ssIOCtx *ssIOCtxPtr; - -gdIOCtx *gdNewSSCtx (gdSourcePtr src, gdSinkPtr snk); - -static int sourceGetbuf (gdIOCtx *, void *, int); -static int sourceGetchar (gdIOCtx * ctx); -static int sinkPutbuf (gdIOCtx * ctx, const void *buf, int size); -static void sinkPutchar (gdIOCtx * ctx, int a); -static void gdFreeSsCtx (gdIOCtx * ctx); - -/* return data as a dynamic pointer */ -gdIOCtx * -gdNewSSCtx (gdSourcePtr src, gdSinkPtr snk) -{ - ssIOCtxPtr ctx; - - ctx = (ssIOCtxPtr) gdMalloc (sizeof (ssIOCtx)); - if (ctx == NULL) - { - return NULL; - } - - ctx->src = src; - ctx->snk = snk; - - ctx->ctx.getC = sourceGetchar; - ctx->ctx.getBuf = sourceGetbuf; - - ctx->ctx.putC = sinkPutchar; - ctx->ctx.putBuf = sinkPutbuf; - - ctx->ctx.tell = NULL; - ctx->ctx.seek = NULL; - - ctx->ctx.gd_free = gdFreeSsCtx; - - return (gdIOCtx *) ctx; -} - -static void -gdFreeSsCtx (gdIOCtx * ctx) -{ - gdFree (ctx); -} - - -static int -sourceGetbuf (gdIOCtx * ctx, void *buf, int size) -{ - ssIOCtx *lctx; - int res; - - lctx = (ssIOCtx *) ctx; - - res = ((lctx->src->source) (lctx->src->context, buf, size)); - -/* - ** Translate the return values from the Source object: - ** 0 is EOF, -1 is error - */ - - if (res == 0) - { - return EOF; - } - else if (res < 0) - { - return 0; - } - else - { - return res; - }; - -} - -static int -sourceGetchar (gdIOCtx * ctx) -{ - int res; - unsigned char buf; - - res = sourceGetbuf (ctx, &buf, 1); - - if (res == 1) - { - return buf; - } - else - { - return EOF; - }; - -} - -static int -sinkPutbuf (gdIOCtx * ctx, const void *buf, int size) -{ - ssIOCtxPtr lctx; - int res; - - lctx = (ssIOCtx *) ctx; - - res = (lctx->snk->sink) (lctx->snk->context, buf, size); - - if (res <= 0) - { - return 0; - } - else - { - return res; - }; - -} - -static void -sinkPutchar (gdIOCtx * ctx, int a) -{ - unsigned char b; - - b = a; - sinkPutbuf (ctx, &b, 1); - -} diff --git a/collects/plot/src/all/gd_jpeg.c b/collects/plot/src/all/gd_jpeg.c deleted file mode 100644 index 391e9d9694..0000000000 --- a/collects/plot/src/all/gd_jpeg.c +++ /dev/null @@ -1,850 +0,0 @@ -/* - * gd_jpeg.c: Read and write JPEG (JFIF) format image files using the - * gd graphics library (http://www.boutell.com/gd/). - * - * This software is based in part on the work of the Independent JPEG - * Group. For more information on the IJG JPEG software (and JPEG - * documentation, etc.), see ftp://ftp.uu.net/graphics/jpeg/. - * - * NOTE: IJG 12-bit JSAMPLE (BITS_IN_JSAMPLE == 12) mode is not - * supported at all on read in gd 2.0, and is not supported on write - * except for palette images, which is sort of pointless (TBB). Even that - * has never been tested according to DB. - * - * Copyright 2000 Doug Becker, mailto:thebeckers@home.com - * - * Modification 4/18/00 TBB: JPEG_DEBUG rather than just DEBUG, - * so VC++ builds don't spew to standard output, causing - * major CGI brain damage - * - * 2.0.10: more efficient gdImageCreateFromJpegCtx, thanks to - * Christian Aberger - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include -#include - -#include "gd.h" -/* TBB: move this up so include files are not brought in */ -/* JCE: arrange HAVE_LIBJPEG so that it can be set in gd.h */ -#ifdef HAVE_LIBJPEG -#include "gdhelpers.h" - -/* 1.8.1: remove dependency on jinclude.h */ -#include "jpeglib.h" -#include "jerror.h" - -static const char *const GD_JPEG_VERSION = "1.0"; - -typedef struct _jmpbuf_wrapper -{ - jmp_buf jmpbuf; -} -jmpbuf_wrapper; - -/* Called by the IJG JPEG library upon encountering a fatal error */ -static void -fatal_jpeg_error (j_common_ptr cinfo) -{ - jmpbuf_wrapper *jmpbufw; - - fprintf (stderr, "gd-jpeg: JPEG library reports unrecoverable error: "); - (*cinfo->err->output_message) (cinfo); - fflush (stderr); - - jmpbufw = (jmpbuf_wrapper *) cinfo->client_data; - jpeg_destroy (cinfo); - - if (jmpbufw != 0) - { - longjmp (jmpbufw->jmpbuf, 1); - fprintf (stderr, "gd-jpeg: EXTREMELY fatal error: longjmp" - " returned control; terminating\n"); - } - else - { - fprintf (stderr, "gd-jpeg: EXTREMELY fatal error: jmpbuf" - " unrecoverable; terminating\n"); - } - - fflush (stderr); - exit (99); -} - -/* - * Write IM to OUTFILE as a JFIF-formatted JPEG image, using quality - * QUALITY. If QUALITY is in the range 0-100, increasing values - * represent higher quality but also larger image size. If QUALITY is - * negative, the IJG JPEG library's default quality is used (which - * should be near optimal for many applications). See the IJG JPEG - * library documentation for more details. */ - -void -gdImageJpeg (gdImagePtr im, FILE * outFile, int quality) -{ - gdIOCtx *out = gdNewFileCtx (outFile); - gdImageJpegCtx (im, out, quality); - out->gd_free (out); -} - -void * -gdImageJpegPtr (gdImagePtr im, int *size, int quality) -{ - void *rv; - gdIOCtx *out = gdNewDynamicCtx (2048, NULL); - gdImageJpegCtx (im, out, quality); - rv = gdDPExtractData (out, size); - out->gd_free (out); - return rv; -} - -void jpeg_gdIOCtx_dest (j_compress_ptr cinfo, gdIOCtx * outfile); - -void -gdImageJpegCtx (gdImagePtr im, gdIOCtx * outfile, int quality) -{ - struct jpeg_compress_struct cinfo; - struct jpeg_error_mgr jerr; - int i, j, jidx; - /* volatile so we can gdFree it on return from longjmp */ - volatile JSAMPROW row = 0; - JSAMPROW rowptr[1]; - jmpbuf_wrapper jmpbufw; - JDIMENSION nlines; - char comment[255]; - -#ifdef JPEG_DEBUG - printf ("gd-jpeg: gd JPEG version %s\n", GD_JPEG_VERSION); - printf ("gd-jpeg: JPEG library version %d, %d-bit sample values\n", - JPEG_LIB_VERSION, BITS_IN_JSAMPLE); - if (!im->trueColor) - { - for (i = 0; i < im->colorsTotal; i++) - { - if (!im->open[i]) - printf ("gd-jpeg: gd colormap index %d: (%d, %d, %d)\n", i, - im->red[i], im->green[i], im->blue[i]); - } - } -#endif /* JPEG_DEBUG */ - - memset (&cinfo, 0, sizeof (cinfo)); - memset (&jerr, 0, sizeof (jerr)); - - cinfo.err = jpeg_std_error (&jerr); - cinfo.client_data = &jmpbufw; - if (setjmp (jmpbufw.jmpbuf) != 0) - { - /* we're here courtesy of longjmp */ - if (row) - gdFree (row); - return; - } - - cinfo.err->error_exit = fatal_jpeg_error; - - jpeg_create_compress (&cinfo); - - cinfo.image_width = im->sx; - cinfo.image_height = im->sy; - cinfo.input_components = 3; /* # of color components per pixel */ - cinfo.in_color_space = JCS_RGB; /* colorspace of input image */ - jpeg_set_defaults (&cinfo); - if (quality >= 0) - jpeg_set_quality (&cinfo, quality, TRUE); - - /* If user requests interlace, translate that to progressive JPEG */ - if (gdImageGetInterlaced (im)) - { -#ifdef JPEG_DEBUG - printf ("gd-jpeg: interlace set, outputting progressive" - " JPEG image\n"); -#endif - jpeg_simple_progression (&cinfo); - } - - jpeg_gdIOCtx_dest (&cinfo, outfile); - - row = (JSAMPROW) gdCalloc (1, cinfo.image_width * cinfo.input_components - * sizeof (JSAMPLE)); - if (row == 0) - { - fprintf (stderr, "gd-jpeg: error: unable to allocate JPEG row " - "structure: gdCalloc returns NULL\n"); - jpeg_destroy_compress (&cinfo); - return; - } - - rowptr[0] = row; - - jpeg_start_compress (&cinfo, TRUE); - - sprintf (comment, "CREATOR: gd-jpeg v%s (using IJG JPEG v%d),", - GD_JPEG_VERSION, JPEG_LIB_VERSION); - if (quality >= 0) - sprintf (comment + strlen (comment), " quality = %d\n", quality); - else - strcat (comment + strlen (comment), " default quality\n"); - jpeg_write_marker (&cinfo, JPEG_COM, (unsigned char *) comment, - (unsigned int) strlen (comment)); - if (im->trueColor) - { -#if BITS_IN_JSAMPLE == 12 - fprintf (stderr, - "gd-jpeg: error: jpeg library was compiled for 12-bit\n" - "precision. This is mostly useless, because JPEGs on the web are\n" - "8-bit and such versions of the jpeg library won't read or write\n" - "them. GD doesn't support these unusual images. Edit your\n" - "jmorecfg.h file to specify the correct precision and completely\n" - "'make clean' and 'make install' libjpeg again. Sorry.\n"); - goto error; -#endif /* BITS_IN_JSAMPLE == 12 */ - for (i = 0; i < im->sy; i++) - { - for (jidx = 0, j = 0; j < im->sx; j++) - { - int val = im->tpixels[i][j]; - row[jidx++] = gdTrueColorGetRed (val); - row[jidx++] = gdTrueColorGetGreen (val); - row[jidx++] = gdTrueColorGetBlue (val); - } - - nlines = jpeg_write_scanlines (&cinfo, rowptr, 1); - if (nlines != 1) - fprintf (stderr, "gd_jpeg: warning: jpeg_write_scanlines" - " returns %u -- expected 1\n", nlines); - } - } - else - { - for (i = 0; i < im->sy; i++) - { - for (jidx = 0, j = 0; j < im->sx; j++) - { - int idx = im->pixels[i][j]; - - /* - * NB: Although gd RGB values are ints, their max value is - * 255 (see the documentation for gdImageColorAllocate()) - * -- perfect for 8-bit JPEG encoding (which is the norm) - */ -#if BITS_IN_JSAMPLE == 8 - row[jidx++] = im->red[idx]; - row[jidx++] = im->green[idx]; - row[jidx++] = im->blue[idx]; -#elif BITS_IN_JSAMPLE == 12 - row[jidx++] = im->red[idx] << 4; - row[jidx++] = im->green[idx] << 4; - row[jidx++] = im->blue[idx] << 4; -#else -#error IJG JPEG library BITS_IN_JSAMPLE value must be 8 or 12 -#endif - } - - nlines = jpeg_write_scanlines (&cinfo, rowptr, 1); - if (nlines != 1) - fprintf (stderr, "gd_jpeg: warning: jpeg_write_scanlines" - " returns %u -- expected 1\n", nlines); - } - } - jpeg_finish_compress (&cinfo); - jpeg_destroy_compress (&cinfo); - gdFree (row); -} - -gdImagePtr -gdImageCreateFromJpeg (FILE * inFile) -{ - gdImagePtr im; - gdIOCtx *in = gdNewFileCtx (inFile); - im = gdImageCreateFromJpegCtx (in); - in->gd_free (in); - return im; -} - -void jpeg_gdIOCtx_src (j_decompress_ptr cinfo, gdIOCtx * infile); - -/* - * Create a gd-format image from the JPEG-format INFILE. Returns the - * image, or NULL upon error. - */ -gdImagePtr -gdImageCreateFromJpegCtx (gdIOCtx * infile) -{ - struct jpeg_decompress_struct cinfo; - struct jpeg_error_mgr jerr; - jmpbuf_wrapper jmpbufw; - /* volatile so we can gdFree them after longjmp */ - volatile JSAMPROW row = 0; - volatile gdImagePtr im = 0; - JSAMPROW rowptr[1]; - int i, j, retval; - JDIMENSION nrows; - -#ifdef JPEG_DEBUG - printf ("gd-jpeg: gd JPEG version %s\n", GD_JPEG_VERSION); - printf ("gd-jpeg: JPEG library version %d, %d-bit sample values\n", - JPEG_LIB_VERSION, BITS_IN_JSAMPLE); -#endif - - memset (&cinfo, 0, sizeof (cinfo)); - memset (&jerr, 0, sizeof (jerr)); - - cinfo.err = jpeg_std_error (&jerr); - cinfo.client_data = &jmpbufw; - if (setjmp (jmpbufw.jmpbuf) != 0) - { - /* we're here courtesy of longjmp */ - if (row) - gdFree (row); - if (im) - gdImageDestroy (im); - return 0; - } - - cinfo.err->error_exit = fatal_jpeg_error; - - jpeg_create_decompress (&cinfo); - - jpeg_gdIOCtx_src (&cinfo, infile); - - retval = jpeg_read_header (&cinfo, TRUE); - if (retval != JPEG_HEADER_OK) - fprintf (stderr, "gd-jpeg: warning: jpeg_read_header returns" - " %d, expected %d\n", retval, JPEG_HEADER_OK); - - if (cinfo.image_height > INT_MAX) - fprintf (stderr, "gd-jpeg: warning: JPEG image height (%u) is" - " greater than INT_MAX (%d) (and thus greater than" - " gd can handle)", cinfo.image_height, INT_MAX); - - if (cinfo.image_width > INT_MAX) - fprintf (stderr, "gd-jpeg: warning: JPEG image width (%u) is" - " greater than INT_MAX (%d) (and thus greater than" - " gd can handle)\n", cinfo.image_width, INT_MAX); - - im = gdImageCreateTrueColor ((int) cinfo.image_width, - (int) cinfo.image_height); - if (im == 0) - { - fprintf (stderr, "gd-jpeg error: cannot allocate gdImage" " struct\n"); - goto error; - } - - /* - * Force the image into RGB colorspace, but don't - * reduce the number of colors anymore (GD 2.0) - */ - cinfo.out_color_space = JCS_RGB; - - if (jpeg_start_decompress (&cinfo) != TRUE) - fprintf (stderr, "gd-jpeg: warning: jpeg_start_decompress" - " reports suspended data source\n"); - -#ifdef JPEG_DEBUG - printf ("gd-jpeg: JPEG image information:"); - if (cinfo.saw_JFIF_marker) - printf (" JFIF version %d.%.2d", - (int) cinfo.JFIF_major_version, (int) cinfo.JFIF_minor_version); - else if (cinfo.saw_Adobe_marker) - printf (" Adobe format"); - else - printf (" UNKNOWN format"); - - printf (" %ux%u (raw) / %ux%u (scaled) %d-bit", cinfo.image_width, - cinfo.image_height, cinfo.output_width, - cinfo.output_height, cinfo.data_precision); - printf (" %s", (cinfo.progressive_mode ? "progressive" : "baseline")); - printf (" image, %d quantized colors, ", cinfo.actual_number_of_colors); - - switch (cinfo.jpeg_color_space) - { - case JCS_GRAYSCALE: - printf ("grayscale"); - break; - - case JCS_RGB: - printf ("RGB"); - break; - - case JCS_YCbCr: - printf ("YCbCr (a.k.a. YUV)"); - break; - - case JCS_CMYK: - printf ("CMYK"); - break; - - case JCS_YCCK: - printf ("YCbCrK"); - break; - - default: - printf ("UNKNOWN (value: %d)", (int) cinfo.jpeg_color_space); - break; - } - printf (" colorspace\n"); - fflush (stdout); -#endif /* JPEG_DEBUG */ - - /* REMOVED by TBB 2/12/01. This field of the structure is - documented as private, and sure enough it's gone in the - latest libjpeg, replaced by something else. Unfortunately - there is still no right way to find out if the file was - progressive or not; just declare your intent before you - write one by calling gdImageInterlace(im, 1) yourself. - After all, we're not really supposed to rework JPEGs and - write them out again anyway. Lossy compression, remember? */ -#if 0 - gdImageInterlace (im, cinfo.progressive_mode != 0); -#endif - if (cinfo.output_components != 3) - { - fprintf (stderr, "gd-jpeg: error: JPEG color quantization" - " request resulted in output_components == %d" - " (expected 3)\n", cinfo.output_components); - goto error; - } - -#if BITS_IN_JSAMPLE == 12 - fprintf (stderr, "gd-jpeg: error: jpeg library was compiled for 12-bit\n" - "precision. This is mostly useless, because JPEGs on the web are\n" - "8-bit and such versions of the jpeg library won't read or write\n" - "them. GD doesn't support these unusual images. Edit your\n" - "jmorecfg.h file to specify the correct precision and completely\n" - "'make clean' and 'make install' libjpeg again. Sorry.\n"); - goto error; -#endif /* BITS_IN_JSAMPLE == 12 */ - - row = gdCalloc (cinfo.output_width * 3, sizeof (JSAMPLE)); - if (row == 0) - { - fprintf (stderr, "gd-jpeg: error: unable to allocate row for" - " JPEG scanline: gdCalloc returns NULL\n"); - goto error; - } - rowptr[0] = row; - - for (i = 0; i < cinfo.output_height; i++) - { - register JSAMPROW currow = row; - register int *tpix = im->tpixels[i]; - nrows = jpeg_read_scanlines (&cinfo, rowptr, 1); - if (nrows != 1) - { - fprintf (stderr, "gd-jpeg: error: jpeg_read_scanlines" - " returns %u, expected 1\n", nrows); - goto error; - } - for (j = 0; j < cinfo.output_width; j++, currow += 3, tpix++) - { - *tpix = gdTrueColor (currow[0], currow[1], currow[2]); - } - } - - if (jpeg_finish_decompress (&cinfo) != TRUE) - fprintf (stderr, "gd-jpeg: warning: jpeg_finish_decompress" - " reports suspended data source\n"); - - - jpeg_destroy_decompress (&cinfo); - gdFree (row); - return im; - -error: - jpeg_destroy_decompress (&cinfo); - if (row) - gdFree (row); - if (im) - gdImageDestroy (im); - return 0; -} - -/* - - * gdIOCtx JPEG data sources and sinks, T. Boutell - * almost a simple global replace from T. Lane's stdio versions. - * - */ - -/* Different versions of libjpeg use either 'jboolean' or 'boolean', and - some platforms define 'boolean', and so forth. Deal with this - madness by typedeffing 'safeboolean' to 'boolean' if HAVE_BOOLEAN - is already set, because this is the test that libjpeg uses. - Otherwise, typedef it to int, because that's what libjpeg does - if HAVE_BOOLEAN is not defined. -TBB */ - -#ifdef HAVE_BOOLEAN -typedef boolean safeboolean; -#else -typedef int safeboolean; -#endif /* HAVE_BOOLEAN */ - -/* Expanded data source object for gdIOCtx input */ - -typedef struct -{ - struct jpeg_source_mgr pub; /* public fields */ - - gdIOCtx *infile; /* source stream */ - unsigned char *buffer; /* start of buffer */ - safeboolean start_of_file; /* have we gotten any data yet? */ - -} -my_source_mgr; - -typedef my_source_mgr *my_src_ptr; - -#define INPUT_BUF_SIZE 4096 /* choose an efficiently fread'able size */ - -/* - * Initialize source --- called by jpeg_read_header - * before any data is actually read. - */ - -void -init_source (j_decompress_ptr cinfo) -{ - my_src_ptr src = (my_src_ptr) cinfo->src; - - /* We reset the empty-input-file flag for each image, - * but we don't clear the input buffer. - * This is correct behavior for reading a series of images from one source. - */ - src->start_of_file = TRUE; -} - - -/* - * Fill the input buffer --- called whenever buffer is emptied. - * - * In typical applications, this should read fresh data into the buffer - * (ignoring the current state of next_input_byte & bytes_in_buffer), - * reset the pointer & count to the start of the buffer, and return TRUE - * indicating that the buffer has been reloaded. It is not necessary to - * fill the buffer entirely, only to obtain at least one more byte. - * - * There is no such thing as an EOF return. If the end of the file has been - * reached, the routine has a choice of ERREXIT() or inserting fake data into - * the buffer. In most cases, generating a warning message and inserting a - * fake EOI marker is the best course of action --- this will allow the - * decompressor to output however much of the image is there. However, - * the resulting error message is misleading if the real problem is an empty - * input file, so we handle that case specially. - * - * In applications that need to be able to suspend compression due to input - * not being available yet, a FALSE return indicates that no more data can be - * obtained right now, but more may be forthcoming later. In this situation, - * the decompressor will return to its caller (with an indication of the - * number of scanlines it has read, if any). The application should resume - * decompression after it has loaded more data into the input buffer. Note - * that there are substantial restrictions on the use of suspension --- see - * the documentation. - * - * When suspending, the decompressor will back up to a convenient restart point - * (typically the start of the current MCU). next_input_byte & bytes_in_buffer - * indicate where the restart point will be if the current call returns FALSE. - * Data beyond this point must be rescanned after resumption, so move it to - * the front of the buffer rather than discarding it. - */ - -#define END_JPEG_SEQUENCE "\r\n[*]--:END JPEG:--[*]\r\n" -safeboolean -fill_input_buffer (j_decompress_ptr cinfo) -{ - my_src_ptr src = (my_src_ptr) cinfo->src; - /* 2.0.12: signed size. Thanks to Geert Jansen */ - /* 2.0.14: some platforms (mingw-msys) don't have ssize_t. Call - an int an int. */ - int nbytes = 0; - memset (src->buffer, 0, INPUT_BUF_SIZE); - - while (nbytes < INPUT_BUF_SIZE) - { - - int got = gdGetBuf (src->buffer + nbytes, - INPUT_BUF_SIZE - nbytes, - src->infile); - - if ((got == EOF) || (got == 0)) - { - - /* EOF or error. If we got any data, don't worry about it. - If we didn't, then this is unexpected. */ - if (!nbytes) - { - - nbytes = -1; - - } - - break; - - } - - nbytes += got; - - } - - if (nbytes <= 0) - { - if (src->start_of_file) /* Treat empty input file as fatal error */ - ERREXIT (cinfo, JERR_INPUT_EMPTY); - WARNMS (cinfo, JWRN_JPEG_EOF); - /* Insert a fake EOI marker */ - src->buffer[0] = (unsigned char) 0xFF; - src->buffer[1] = (unsigned char) JPEG_EOI; - nbytes = 2; - } - - src->pub.next_input_byte = src->buffer; - src->pub.bytes_in_buffer = nbytes; - src->start_of_file = FALSE; - - return TRUE; -} - - -/* - * Skip data --- used to skip over a potentially large amount of - * uninteresting data (such as an APPn marker). - * - * Writers of suspendable-input applications must note that skip_input_data - * is not granted the right to give a suspension return. If the skip extends - * beyond the data currently in the buffer, the buffer can be marked empty so - * that the next read will cause a fill_input_buffer call that can suspend. - * Arranging for additional bytes to be discarded before reloading the input - * buffer is the application writer's problem. - */ - -void -skip_input_data (j_decompress_ptr cinfo, long num_bytes) -{ - my_src_ptr src = (my_src_ptr) cinfo->src; - - /* Just a dumb implementation for now. Not clear that being smart is worth - * any trouble anyway --- large skips are infrequent. - */ - if (num_bytes > 0) - { - while (num_bytes > (long) src->pub.bytes_in_buffer) - { - num_bytes -= (long) src->pub.bytes_in_buffer; - (void) fill_input_buffer (cinfo); - /* note we assume that fill_input_buffer will never return FALSE, - * so suspension need not be handled. - */ - } - src->pub.next_input_byte += (size_t) num_bytes; - src->pub.bytes_in_buffer -= (size_t) num_bytes; - } -} - - -/* - * An additional method that can be provided by data source modules is the - * resync_to_restart method for error recovery in the presence of RST markers. - * For the moment, this source module just uses the default resync method - * provided by the JPEG library. That method assumes that no backtracking - * is possible. - */ - - -/* - * Terminate source --- called by jpeg_finish_decompress - * after all data has been read. Often a no-op. - * - * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding - * application must deal with any cleanup that should happen even - * for error exit. - */ - -void -term_source (j_decompress_ptr cinfo) -{ - -#if 0 -/* never used */ - my_src_ptr src = (my_src_ptr) cinfo->src; - -#endif -} - - -/* - * Prepare for input from a gdIOCtx stream. - * The caller must have already opened the stream, and is responsible - * for closing it after finishing decompression. - */ - -void -jpeg_gdIOCtx_src (j_decompress_ptr cinfo, gdIOCtx * infile) -{ - my_src_ptr src; - - /* The source object and input buffer are made permanent so that a series - * of JPEG images can be read from the same file by calling jpeg_gdIOCtx_src - * only before the first one. (If we discarded the buffer at the end of - * one image, we'd likely lose the start of the next one.) - * This makes it unsafe to use this manager and a different source - * manager serially with the same JPEG object. Caveat programmer. - */ - if (cinfo->src == NULL) - { /* first time for this JPEG object? */ - cinfo->src = (struct jpeg_source_mgr *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - sizeof (my_source_mgr)); - src = (my_src_ptr) cinfo->src; - src->buffer = (unsigned char *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - INPUT_BUF_SIZE * sizeof (unsigned char)); - - } - - src = (my_src_ptr) cinfo->src; - src->pub.init_source = init_source; - src->pub.fill_input_buffer = fill_input_buffer; - src->pub.skip_input_data = skip_input_data; - src->pub.resync_to_restart = jpeg_resync_to_restart; /* use default method */ - src->pub.term_source = term_source; - src->infile = infile; - src->pub.bytes_in_buffer = 0; /* forces fill_input_buffer on first read */ - src->pub.next_input_byte = NULL; /* until buffer loaded */ -} - -/* Expanded data destination object for stdio output */ - -typedef struct -{ - struct jpeg_destination_mgr pub; /* public fields */ - gdIOCtx *outfile; /* target stream */ - unsigned char *buffer; /* start of buffer */ -} -my_destination_mgr; - -typedef my_destination_mgr *my_dest_ptr; - -#define OUTPUT_BUF_SIZE 4096 /* choose an efficiently fwrite'able size */ - -/* - * Initialize destination --- called by jpeg_start_compress - * before any data is actually written. - */ - -void -init_destination (j_compress_ptr cinfo) -{ - my_dest_ptr dest = (my_dest_ptr) cinfo->dest; - - /* Allocate the output buffer --- it will be released when done with image */ - dest->buffer = (unsigned char *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - OUTPUT_BUF_SIZE * sizeof (unsigned char)); - - dest->pub.next_output_byte = dest->buffer; - dest->pub.free_in_buffer = OUTPUT_BUF_SIZE; -} - - -/* - * Empty the output buffer --- called whenever buffer fills up. - * - * In typical applications, this should write the entire output buffer - * (ignoring the current state of next_output_byte & free_in_buffer), - * reset the pointer & count to the start of the buffer, and return TRUE - * indicating that the buffer has been dumped. - * - * In applications that need to be able to suspend compression due to output - * overrun, a FALSE return indicates that the buffer cannot be emptied now. - * In this situation, the compressor will return to its caller (possibly with - * an indication that it has not accepted all the supplied scanlines). The - * application should resume compression after it has made more room in the - * output buffer. Note that there are substantial restrictions on the use of - * suspension --- see the documentation. - * - * When suspending, the compressor will back up to a convenient restart point - * (typically the start of the current MCU). next_output_byte & free_in_buffer - * indicate where the restart point will be if the current call returns FALSE. - * Data beyond this point will be regenerated after resumption, so do not - * write it out when emptying the buffer externally. - */ - -safeboolean -empty_output_buffer (j_compress_ptr cinfo) -{ - my_dest_ptr dest = (my_dest_ptr) cinfo->dest; - - if (gdPutBuf (dest->buffer, OUTPUT_BUF_SIZE, dest->outfile) != - (size_t) OUTPUT_BUF_SIZE) - ERREXIT (cinfo, JERR_FILE_WRITE); - - dest->pub.next_output_byte = dest->buffer; - dest->pub.free_in_buffer = OUTPUT_BUF_SIZE; - - return TRUE; -} - - -/* - * Terminate destination --- called by jpeg_finish_compress - * after all data has been written. Usually needs to flush buffer. - * - * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding - * application must deal with any cleanup that should happen even - * for error exit. - */ - -void -term_destination (j_compress_ptr cinfo) -{ - my_dest_ptr dest = (my_dest_ptr) cinfo->dest; - size_t datacount = OUTPUT_BUF_SIZE - dest->pub.free_in_buffer; - - /* Write any data remaining in the buffer */ - if (datacount > 0) - { - if (gdPutBuf (dest->buffer, datacount, dest->outfile) != datacount) - ERREXIT (cinfo, JERR_FILE_WRITE); - } -} - - -/* - * Prepare for output to a stdio stream. - * The caller must have already opened the stream, and is responsible - * for closing it after finishing compression. - */ - -void -jpeg_gdIOCtx_dest (j_compress_ptr cinfo, gdIOCtx * outfile) -{ - my_dest_ptr dest; - - /* The destination object is made permanent so that multiple JPEG images - * can be written to the same file without re-executing jpeg_stdio_dest. - * This makes it dangerous to use this manager and a different destination - * manager serially with the same JPEG object, because their private object - * sizes may be different. Caveat programmer. - */ - if (cinfo->dest == NULL) - { /* first time for this JPEG object? */ - cinfo->dest = (struct jpeg_destination_mgr *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - sizeof (my_destination_mgr)); - } - - dest = (my_dest_ptr) cinfo->dest; - dest->pub.init_destination = init_destination; - dest->pub.empty_output_buffer = empty_output_buffer; - dest->pub.term_destination = term_destination; - dest->outfile = outfile; -} - -#endif /* HAVE_LIBJPEG */ diff --git a/collects/plot/src/all/gd_png.c b/collects/plot/src/all/gd_png.c deleted file mode 100644 index 44a1eb8796..0000000000 --- a/collects/plot/src/all/gd_png.c +++ /dev/null @@ -1,792 +0,0 @@ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include -#include "gd.h" - -/* JCE: Arrange HAVE_LIBPNG so that it can be set in gd.h */ -#ifdef HAVE_LIBPNG - -#include "gdhelpers.h" -#include "png.h" /* includes zlib.h and setjmp.h */ - -#define TRUE 1 -#define FALSE 0 - -/*--------------------------------------------------------------------------- - - gd_png.c Copyright 1999 Greg Roelofs and Thomas Boutell - - The routines in this file, gdImagePng*() and gdImageCreateFromPng*(), - are drop-in replacements for gdImageGif*() and gdImageCreateFromGif*(), - except that these functions are noisier in the case of errors (comment - out all fprintf() statements to disable that). - - GD 2.0 supports RGBA truecolor and will read and write truecolor PNGs. - GD 2.0 supports 8 bits of color resolution per channel and - 7 bits of alpha channel resolution. Images with more than 8 bits - per channel are reduced to 8 bits. Images with an alpha channel are - only able to resolve down to '1/128th opaque' instead of '1/256th', - and this conversion is also automatic. I very much doubt you can see it. - Both tRNS and true alpha are supported. - - Gamma is ignored, and there is no support for text annotations. - - Last updated: 9 February 2001 - - ---------------------------------------------------------------------------*/ - -#ifndef PNG_SETJMP_NOT_SUPPORTED -typedef struct _jmpbuf_wrapper -{ - jmp_buf jmpbuf; -} -jmpbuf_wrapper; - -static jmpbuf_wrapper gdPngJmpbufStruct; - -static void -gdPngErrorHandler (png_structp png_ptr, png_const_charp msg) -{ - jmpbuf_wrapper *jmpbuf_ptr; - - /* This function, aside from the extra step of retrieving the "error - * pointer" (below) and the fact that it exists within the application - * rather than within libpng, is essentially identical to libpng's - * default error handler. The second point is critical: since both - * setjmp() and longjmp() are called from the same code, they are - * guaranteed to have compatible notions of how big a jmp_buf is, - * regardless of whether _BSD_SOURCE or anything else has (or has not) - * been defined. */ - - fprintf (stderr, "gd-png: fatal libpng error: %s\n", msg); - fflush (stderr); - - jmpbuf_ptr = png_get_error_ptr (png_ptr); - if (jmpbuf_ptr == NULL) - { /* we are completely hosed now */ - fprintf (stderr, - "gd-png: EXTREMELY fatal error: jmpbuf unrecoverable; terminating.\n"); - fflush (stderr); - exit (99); - } - - longjmp (jmpbuf_ptr->jmpbuf, 1); -} -#endif - -static void -gdPngReadData (png_structp png_ptr, png_bytep data, png_size_t length) -{ - gdGetBuf (data, length, (gdIOCtx *) png_get_io_ptr (png_ptr)); -} - -static void -gdPngWriteData (png_structp png_ptr, png_bytep data, png_size_t length) -{ - gdPutBuf (data, length, (gdIOCtx *) png_get_io_ptr (png_ptr)); -} - -static void -gdPngFlushData (png_structp png_ptr) -{ -} - -gdImagePtr -gdImageCreateFromPng (FILE * inFile) -{ - gdImagePtr im; - gdIOCtx *in = gdNewFileCtx (inFile); - im = gdImageCreateFromPngCtx (in); - in->gd_free (in); - return im; -} - - -/* This routine is based in part on the Chapter 13 demo code in "PNG: The - * Definitive Guide" (http://www.cdrom.com/pub/png/pngbook.html). - */ -gdImagePtr -gdImageCreateFromPngCtx (gdIOCtx * infile) -{ - png_byte sig[8]; - png_structp png_ptr; - png_infop info_ptr; - png_uint_32 width, height, rowbytes; - int bit_depth, color_type, interlace_type; - int num_palette, num_trans; - png_colorp palette; - png_color_16p trans_gray_rgb; - png_color_16p trans_color_rgb; - png_bytep trans; - png_bytep image_data = NULL; - png_bytepp row_pointers = NULL; - gdImagePtr im = NULL; - int i, j, *open = NULL; - volatile int transparent = -1; - volatile int palette_allocated = FALSE; - - /* Make sure the signature can't match by dumb luck -- TBB */ - /* GRR: isn't sizeof(infile) equal to the size of the pointer? */ - memset (infile, 0, sizeof (infile)); - - /* first do a quick check that the file really is a PNG image; could - * have used slightly more general png_sig_cmp() function instead */ - gdGetBuf (sig, 8, infile); - if (!png_check_sig (sig, 8)) - return NULL; /* bad signature */ - -#ifndef PNG_SETJMP_NOT_SUPPORTED - png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING, &gdPngJmpbufStruct, - gdPngErrorHandler, NULL); -#else - png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); -#endif - if (png_ptr == NULL) - { - fprintf (stderr, "gd-png error: cannot allocate libpng main struct\n"); - return NULL; - } - - info_ptr = png_create_info_struct (png_ptr); - if (info_ptr == NULL) - { - fprintf (stderr, "gd-png error: cannot allocate libpng info struct\n"); - png_destroy_read_struct (&png_ptr, NULL, NULL); - return NULL; - } - - /* we could create a second info struct here (end_info), but it's only - * useful if we want to keep pre- and post-IDAT chunk info separated - * (mainly for PNG-aware image editors and converters) */ - - /* setjmp() must be called in every non-callback function that calls a - * PNG-reading libpng function */ -#ifndef PNG_SETJMP_NOT_SUPPORTED - if (setjmp (gdPngJmpbufStruct.jmpbuf)) - { - fprintf (stderr, "gd-png error: setjmp returns error condition\n"); - png_destroy_read_struct (&png_ptr, &info_ptr, NULL); - return NULL; - } -#endif - - png_set_sig_bytes (png_ptr, 8); /* we already read the 8 signature bytes */ - - png_set_read_fn (png_ptr, (void *) infile, gdPngReadData); - png_read_info (png_ptr, info_ptr); /* read all PNG info up to image data */ - - png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, - &interlace_type, NULL, NULL); - if ((color_type == PNG_COLOR_TYPE_RGB) || - (color_type == PNG_COLOR_TYPE_RGB_ALPHA)) - { - im = gdImageCreateTrueColor ((int) width, (int) height); - } - else - { - im = gdImageCreate ((int) width, (int) height); - } - if (im == NULL) - { - fprintf (stderr, "gd-png error: cannot allocate gdImage struct\n"); - png_destroy_read_struct (&png_ptr, &info_ptr, NULL); - gdFree (image_data); - gdFree (row_pointers); - return NULL; - } - - if (bit_depth == 16) - png_set_strip_16 (png_ptr); - else if (bit_depth < 8) - png_set_packing (png_ptr); /* expand to 1 byte per pixel */ - switch (color_type) - { - case PNG_COLOR_TYPE_PALETTE: - png_get_PLTE (png_ptr, info_ptr, &palette, &num_palette); -#ifdef DEBUG - fprintf (stderr, "gd-png color_type is palette, colors: %d\n", - num_palette); -#endif /* DEBUG */ - if (png_get_valid (png_ptr, info_ptr, PNG_INFO_tRNS)) - { - /* gd 2.0: we support this rather thoroughly now. Grab the - first fully transparent entry, if any, as the value of - the simple-transparency index, mostly for backwards - binary compatibility. The alpha channel is where it's - really at these days. */ - int firstZero = 1; - png_get_tRNS (png_ptr, info_ptr, &trans, &num_trans, NULL); - for (i = 0; i < num_trans; ++i) - { - im->alpha[i] = gdAlphaMax - (trans[i] >> 1); - if ((trans[i] == 0) && (firstZero)) - { - /* 2.0.5: long-forgotten patch from Wez Furlong */ - transparent = i; - firstZero = 0; - } - } - } - break; - - case PNG_COLOR_TYPE_GRAY: - case PNG_COLOR_TYPE_GRAY_ALPHA: - /* create a fake palette and check for single-shade transparency */ - if ((palette = - (png_colorp) gdMalloc (256 * sizeof (png_color))) == NULL) - { - fprintf (stderr, "gd-png error: cannot allocate gray palette\n"); - png_destroy_read_struct (&png_ptr, &info_ptr, NULL); - return NULL; - } - palette_allocated = TRUE; - if (bit_depth < 8) - { - num_palette = 1 << bit_depth; - for (i = 0; i < 256; ++i) - { - j = (255 * i) / (num_palette - 1); - palette[i].red = palette[i].green = palette[i].blue = j; - } - } - else - { - num_palette = 256; - for (i = 0; i < 256; ++i) - { - palette[i].red = palette[i].green = palette[i].blue = i; - } - } - if (png_get_valid (png_ptr, info_ptr, PNG_INFO_tRNS)) - { - png_get_tRNS (png_ptr, info_ptr, NULL, NULL, &trans_gray_rgb); - if (bit_depth == 16) /* png_set_strip_16() not yet in effect */ - transparent = trans_gray_rgb->gray >> 8; - else - transparent = trans_gray_rgb->gray; - /* Note slight error in 16-bit case: up to 256 16-bit shades - * may get mapped to a single 8-bit shade, and only one of them - * is supposed to be transparent. IOW, both opaque pixels and - * transparent pixels will be mapped into the transparent entry. - * There is no particularly good way around this in the case - * that all 256 8-bit shades are used, but one could write some - * custom 16-bit code to handle the case where there are gdFree - * palette entries. This error will be extremely rare in - * general, though. (Quite possibly there is only one such - * image in existence.) */ - } - break; - - case PNG_COLOR_TYPE_RGB: - case PNG_COLOR_TYPE_RGB_ALPHA: - /* gd 2.0: we now support truecolor. See the comment above - for a rare situation in which the transparent pixel may not - work properly with 16-bit channels. */ - if (png_get_valid (png_ptr, info_ptr, PNG_INFO_tRNS)) - { - png_get_tRNS (png_ptr, info_ptr, NULL, NULL, &trans_color_rgb); - if (bit_depth == 16) /* png_set_strip_16() not yet in effect */ - transparent = gdTrueColor (trans_color_rgb->red >> 8, - trans_color_rgb->green >> 8, - trans_color_rgb->blue >> 8); - else - transparent = gdTrueColor (trans_color_rgb->red, - trans_color_rgb->green, - trans_color_rgb->blue); - } - break; - } - - png_read_update_info (png_ptr, info_ptr); - - /* allocate space for the PNG image data */ - rowbytes = png_get_rowbytes (png_ptr, info_ptr); - if ((image_data = (png_bytep) gdMalloc (rowbytes * height)) == NULL) - { - fprintf (stderr, "gd-png error: cannot allocate image data\n"); - png_destroy_read_struct (&png_ptr, &info_ptr, NULL); - return NULL; - } - if ((row_pointers = - (png_bytepp) gdMalloc (height * sizeof (png_bytep))) == NULL) - { - fprintf (stderr, "gd-png error: cannot allocate row pointers\n"); - png_destroy_read_struct (&png_ptr, &info_ptr, NULL); - gdFree (image_data); - return NULL; - } - - /* set the individual row_pointers to point at the correct offsets */ - for (j = 0; j < height; ++j) - { - row_pointers[j] = image_data + j * rowbytes; - } - - png_read_image (png_ptr, row_pointers); /* read whole image... */ - png_read_end (png_ptr, NULL); /* ...done! */ - - if (!im->trueColor) - { - im->colorsTotal = num_palette; - /* load the palette and mark all entries "open" (unused) for now */ - open = im->open; - for (i = 0; i < num_palette; ++i) - { - im->red[i] = palette[i].red; - im->green[i] = palette[i].green; - im->blue[i] = palette[i].blue; - open[i] = 1; - } - for (i = num_palette; i < gdMaxColors; ++i) - { - open[i] = 1; - } - } - /* 2.0.12: Slaven Rezic: palette images are not the only images - with a simple transparent color setting */ - im->transparent = transparent; - im->interlace = (interlace_type == PNG_INTERLACE_ADAM7); - - /* can't nuke structs until done with palette */ - png_destroy_read_struct (&png_ptr, &info_ptr, NULL); - switch (color_type) - { - case PNG_COLOR_TYPE_RGB: - for (j = 0; j < height; j++) - { - int boffset = 0; - for (i = 0; i < width; i++) - { - register png_byte r = row_pointers[j][boffset++]; - register png_byte g = row_pointers[j][boffset++]; - register png_byte b = row_pointers[j][boffset++]; - im->tpixels[j][i] = gdTrueColor (r, g, b); - } - } - break; - case PNG_COLOR_TYPE_RGB_ALPHA: - for (j = 0; j < height; j++) - { - int boffset = 0; - for (i = 0; i < width; i++) - { - register png_byte r = row_pointers[j][boffset++]; - register png_byte g = row_pointers[j][boffset++]; - register png_byte b = row_pointers[j][boffset++]; - /* gd has only 7 bits of alpha channel resolution, and - 127 is transparent, 0 opaque. A moment of convenience, - a lifetime of compatibility. */ - register png_byte a = gdAlphaMax - - (row_pointers[j][boffset++] >> 1); - im->tpixels[j][i] = gdTrueColorAlpha (r, g, b, a); - } - } - break; - default: - /* Palette image, or something coerced to be one */ - for (j = 0; j < height; ++j) - { - for (i = 0; i < width; ++i) - { - register png_byte idx = row_pointers[j][i]; - im->pixels[j][i] = idx; - open[idx] = 0; - } - } - } -#ifdef DEBUG - if (!im->trueColor) - { - for (i = num_palette; i < gdMaxColors; ++i) - { - if (!open[i]) - { - fprintf (stderr, - "gd-png warning: image data references out-of-range" - " color index (%d)\n", i); - } - } - } -#endif - - if (palette_allocated) - gdFree (palette); - gdFree (image_data); - gdFree (row_pointers); - - return im; -} - - -void -gdImagePngEx (gdImagePtr im, FILE * outFile, int level) -{ - gdIOCtx *out = gdNewFileCtx (outFile); - gdImagePngCtxEx (im, out, level); - out->gd_free (out); -} - -void -gdImagePng (gdImagePtr im, FILE * outFile) -{ - gdIOCtx *out = gdNewFileCtx (outFile); - gdImagePngCtxEx (im, out, -1); - out->gd_free (out); -} - -void * -gdImagePngPtr (gdImagePtr im, int *size) -{ - void *rv; - gdIOCtx *out = gdNewDynamicCtx (2048, NULL); - gdImagePngCtxEx (im, out, -1); - rv = gdDPExtractData (out, size); - out->gd_free (out); - return rv; -} - -void * -gdImagePngPtrEx (gdImagePtr im, int *size, int level) -{ - void *rv; - gdIOCtx *out = gdNewDynamicCtx (2048, NULL); - gdImagePngCtxEx (im, out, level); - rv = gdDPExtractData (out, size); - out->gd_free (out); - return rv; -} - -void -gdImagePngCtx (gdImagePtr im, gdIOCtx * outfile) -{ - /* 2.0.13: 'return' here was an error, thanks to Kevin Smith */ - gdImagePngCtxEx (im, outfile, -1); -} - -/* This routine is based in part on code from Dale Lutz (Safe Software Inc.) - * and in part on demo code from Chapter 15 of "PNG: The Definitive Guide" - * (http://www.cdrom.com/pub/png/pngbook.html). - */ -void -gdImagePngCtxEx (gdImagePtr im, gdIOCtx * outfile, int level) -{ - int i, j, bit_depth = 0, interlace_type; - int width = im->sx; - int height = im->sy; - int colors = im->colorsTotal; - int *open = im->open; - int mapping[gdMaxColors]; /* mapping[gd_index] == png_index */ - png_byte trans_values[256]; - png_color_16 trans_rgb_value; - png_color palette[gdMaxColors]; - png_structp png_ptr; - png_infop info_ptr; - volatile int transparent = im->transparent; - volatile int remap = FALSE; - - -#ifndef PNG_SETJMP_NOT_SUPPORTED - png_ptr = png_create_write_struct (PNG_LIBPNG_VER_STRING, - &gdPngJmpbufStruct, gdPngErrorHandler, - NULL); -#else - png_ptr = png_create_write_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); -#endif - if (png_ptr == NULL) - { - fprintf (stderr, "gd-png error: cannot allocate libpng main struct\n"); - return; - } - - info_ptr = png_create_info_struct (png_ptr); - if (info_ptr == NULL) - { - fprintf (stderr, "gd-png error: cannot allocate libpng info struct\n"); - png_destroy_write_struct (&png_ptr, (png_infopp) NULL); - return; - } - -#ifndef PNG_SETJMP_NOT_SUPPORTED - if (setjmp (gdPngJmpbufStruct.jmpbuf)) - { - fprintf (stderr, "gd-png error: setjmp returns error condition\n"); - png_destroy_write_struct (&png_ptr, &info_ptr); - return; - } -#endif - - png_set_write_fn (png_ptr, (void *) outfile, gdPngWriteData, - gdPngFlushData); - - /* This is best for palette images, and libpng defaults to it for - palette images anyway, so we don't need to do it explicitly. - What to ideally do for truecolor images depends, alas, on the image. - gd is intentionally imperfect and doesn't spend a lot of time - fussing with such things. */ -/* png_set_filter(png_ptr, 0, PNG_FILTER_NONE); */ - - /* 2.0.12: this is finally a parameter */ - png_set_compression_level (png_ptr, level); - - /* can set this to a smaller value without compromising compression if all - * image data is 16K or less; will save some decoder memory [min == 8] */ -/* png_set_compression_window_bits(png_ptr, 15); */ - - if (!im->trueColor) - { - if (transparent >= im->colorsTotal || - (transparent >= 0 && open[transparent])) - transparent = -1; - } - if (!im->trueColor) - { - for (i = 0; i < gdMaxColors; ++i) - mapping[i] = -1; - } - if (!im->trueColor) - { - /* count actual number of colors used (colorsTotal == high-water mark) */ - colors = 0; - for (i = 0; i < im->colorsTotal; ++i) - { - if (!open[i]) - { - mapping[i] = colors; - ++colors; - } - } - if (colors < im->colorsTotal) - { - remap = TRUE; - } - if (colors <= 2) - bit_depth = 1; - else if (colors <= 4) - bit_depth = 2; - else if (colors <= 16) - bit_depth = 4; - else - bit_depth = 8; - } - interlace_type = im->interlace ? PNG_INTERLACE_ADAM7 : PNG_INTERLACE_NONE; - - if (im->trueColor) - { - if (im->saveAlphaFlag) - { - png_set_IHDR (png_ptr, info_ptr, width, height, 8, - PNG_COLOR_TYPE_RGB_ALPHA, interlace_type, - PNG_COMPRESSION_TYPE_DEFAULT, - PNG_FILTER_TYPE_DEFAULT); - } - else - { - png_set_IHDR (png_ptr, info_ptr, width, height, 8, - PNG_COLOR_TYPE_RGB, interlace_type, - PNG_COMPRESSION_TYPE_DEFAULT, - PNG_FILTER_TYPE_DEFAULT); - } - } - else - { - png_set_IHDR (png_ptr, info_ptr, width, height, bit_depth, - PNG_COLOR_TYPE_PALETTE, interlace_type, - PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); - } - if (im->trueColor && (!im->saveAlphaFlag) && (transparent >= 0)) - { - /* 2.0.9: fixed by Thomas Winzig */ - trans_rgb_value.red = gdTrueColorGetRed (im->transparent); - trans_rgb_value.green = gdTrueColorGetGreen (im->transparent); - trans_rgb_value.blue = gdTrueColorGetBlue (im->transparent); - png_set_tRNS (png_ptr, info_ptr, 0, 0, &trans_rgb_value); - } - if (!im->trueColor) - { - /* Oy veh. Remap the PNG palette to put the - entries with interesting alpha channel - values first. This minimizes the size - of the tRNS chunk and thus the size - of the PNG file as a whole. */ - int tc = 0; - int i; - int j; - int k; - for (i = 0; (i < im->colorsTotal); i++) - { - if ((!im->open[i]) && (im->alpha[i] != gdAlphaOpaque)) - { - tc++; - } - } - if (tc) - { -#if 0 - for (i = 0; (i < im->colorsTotal); i++) - { - trans_values[i] = 255 - - ((im->alpha[i] << 1) + (im->alpha[i] >> 6)); - } - png_set_tRNS (png_ptr, info_ptr, trans_values, 256, NULL); -#endif - if (!remap) - { - remap = TRUE; - } - /* (Semi-)transparent indexes come up from the bottom - of the list of real colors; opaque - indexes come down from the top */ - j = 0; - k = colors - 1; - for (i = 0; (i < im->colorsTotal); i++) - { - if (!im->open[i]) - { - if (im->alpha[i] != gdAlphaOpaque) - { - /* Andrew Hull: >> 6, not >> 7! (gd 2.0.5) */ - trans_values[j] = 255 - - ((im->alpha[i] << 1) + (im->alpha[i] >> 6)); - mapping[i] = j++; - } - else - { - mapping[i] = k--; - } - } - } - png_set_tRNS (png_ptr, info_ptr, trans_values, tc, NULL); - } - } - - /* convert palette to libpng layout */ - if (!im->trueColor) - { - if (remap) - for (i = 0; i < im->colorsTotal; ++i) - { - if (mapping[i] < 0) - continue; - palette[mapping[i]].red = im->red[i]; - palette[mapping[i]].green = im->green[i]; - palette[mapping[i]].blue = im->blue[i]; - } - else - for (i = 0; i < colors; ++i) - { - palette[i].red = im->red[i]; - palette[i].green = im->green[i]; - palette[i].blue = im->blue[i]; - } - png_set_PLTE (png_ptr, info_ptr, palette, colors); - } - - /* write out the PNG header info (everything up to first IDAT) */ - png_write_info (png_ptr, info_ptr); - - /* make sure < 8-bit images are packed into pixels as tightly as possible */ - png_set_packing (png_ptr); - - /* This code allocates a set of row buffers and copies the gd image data - * into them only in the case that remapping is necessary; in gd 1.3 and - * later, the im->pixels array is laid out identically to libpng's row - * pointers and can be passed to png_write_image() function directly. - * The remapping case could be accomplished with less memory for non- - * interlaced images, but interlacing causes some serious complications. */ - if (im->trueColor) - { - int channels = im->saveAlphaFlag ? 4 : 3; - /* Our little 7-bit alpha channel trick costs us a bit here. */ - png_bytep *row_pointers; - row_pointers = gdMalloc (sizeof (png_bytep) * height); - if (row_pointers == NULL) - { - fprintf (stderr, "gd-png error: unable to allocate row_pointers\n"); - } - for (j = 0; j < height; ++j) - { - int bo = 0; - if ((row_pointers[j] = - (png_bytep) gdMalloc (width * channels)) == NULL) - { - fprintf (stderr, "gd-png error: unable to allocate rows\n"); - for (i = 0; i < j; ++i) - gdFree (row_pointers[i]); - return; - } - for (i = 0; i < width; ++i) - { - unsigned char a; - row_pointers[j][bo++] = gdTrueColorGetRed (im->tpixels[j][i]); - row_pointers[j][bo++] = gdTrueColorGetGreen (im->tpixels[j][i]); - row_pointers[j][bo++] = gdTrueColorGetBlue (im->tpixels[j][i]); - if (im->saveAlphaFlag) - { - /* convert the 7-bit alpha channel to an 8-bit alpha channel. - We do a little bit-flipping magic, repeating the MSB - as the LSB, to ensure that 0 maps to 0 and - 127 maps to 255. We also have to invert to match - PNG's convention in which 255 is opaque. */ - a = gdTrueColorGetAlpha (im->tpixels[j][i]); - /* Andrew Hull: >> 6, not >> 7! (gd 2.0.5) */ - row_pointers[j][bo++] = 255 - ((a << 1) + (a >> 6)); - } - } - } - - png_write_image (png_ptr, row_pointers); - png_write_end (png_ptr, info_ptr); - - for (j = 0; j < height; ++j) - gdFree (row_pointers[j]); - gdFree (row_pointers); - } - else - { - if (remap) - { - png_bytep *row_pointers; - row_pointers = gdMalloc (sizeof (png_bytep) * height); - if (row_pointers == NULL) - { - fprintf (stderr, - "gd-png error: unable to allocate row_pointers\n"); - } - for (j = 0; j < height; ++j) - { - if ((row_pointers[j] = (png_bytep) gdMalloc (width)) == NULL) - { - fprintf (stderr, "gd-png error: unable to allocate rows\n"); - for (i = 0; i < j; ++i) - gdFree (row_pointers[i]); - return; - } - for (i = 0; i < width; ++i) - row_pointers[j][i] = mapping[im->pixels[j][i]]; - } - - png_write_image (png_ptr, row_pointers); - png_write_end (png_ptr, info_ptr); - - for (j = 0; j < height; ++j) - gdFree (row_pointers[j]); - gdFree (row_pointers); - } - else - { - png_write_image (png_ptr, im->pixels); - png_write_end (png_ptr, info_ptr); - } - } - /* 1.6.3: maybe we should give that memory BACK! TBB */ - png_destroy_write_struct (&png_ptr, &info_ptr); -} - - -#endif /* HAVE_LIBPNG */ diff --git a/collects/plot/src/all/gd_ss.c b/collects/plot/src/all/gd_ss.c deleted file mode 100644 index e16417004e..0000000000 --- a/collects/plot/src/all/gd_ss.c +++ /dev/null @@ -1,58 +0,0 @@ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include -#include "gd.h" - -#define TRUE 1 -#define FALSE 0 - -/* Exported functions: */ -extern void gdImagePngToSink (gdImagePtr im, gdSinkPtr out); -extern gdImagePtr gdImageCreateFromPngSource (gdSourcePtr inSource); - -/* Use this for commenting out debug-print statements. */ -/* Just use the first '#define' to allow all the prints... */ -/*#define GD_SS_DBG(s) (s) */ -#define GD_SS_DBG(s) - -#ifdef HAVE_LIBPNG -void -gdImagePngToSink (gdImagePtr im, gdSinkPtr outSink) -{ - gdIOCtx *out = gdNewSSCtx (NULL, outSink); - gdImagePngCtx (im, out); - out->gd_free (out); -} - -gdImagePtr -gdImageCreateFromPngSource (gdSourcePtr inSource) -{ - gdIOCtx *in = gdNewSSCtx (inSource, NULL); - gdImagePtr im; - - im = gdImageCreateFromPngCtx (in); - - in->gd_free (in); - - return im; -} -#else /* no HAVE_LIBPNG */ -void -gdImagePngToSink (gdImagePtr im, gdSinkPtr outSink) -{ - fprintf (stderr, "PNG support is not available\n"); -} - -gdImagePtr -gdImageCreateFromPngSource (gdSourcePtr inSource) -{ - fprintf (stderr, "PNG support is not available\n"); - return NULL; -} -#endif /* HAVE_LIBPNG */ diff --git a/collects/plot/src/all/gd_topal.c b/collects/plot/src/all/gd_topal.c deleted file mode 100644 index e1e0612410..0000000000 --- a/collects/plot/src/all/gd_topal.c +++ /dev/null @@ -1,2010 +0,0 @@ -/* 2.0.12: a new adaptation from the same original, this time - by Barend Gehrels. My attempt to incorporate alpha channel - into the result worked poorly and degraded the quality of - palette conversion even when the source contained no - alpha channel data. This version does not attempt to produce - an output file with transparency in some of the palette - indexes, which, in practice, doesn't look so hot anyway. TBB */ - -/* - * gd_topal, adapted from jquant2.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains 2-pass color quantization (color mapping) routines. - * These routines provide selection of a custom color map for an image, - * followed by mapping of the image to that color map, with optional - * Floyd-Steinberg dithering. - * It is also possible to use just the second pass to map to an arbitrary - * externally-given color map. - * - * Note: ordered dithering is not supported, since there isn't any fast - * way to compute intercolor distances; it's unclear that ordered dither's - * fundamental assumptions even hold with an irregularly spaced color map. - */ - -#ifdef ORIGINAL_LIB_JPEG - -#define JPEG_INTERNALS - -#include "jinclude.h" -#include "jpeglib.h" - -#else - -/* - * THOMAS BOUTELL & BAREND GEHRELS, february 2003 - * adapted the code to work within gd rather than within libjpeg. - * If it is not working, it's not Thomas G. Lane's fault. - */ - -/* - SETTING THIS ONE CAUSES STRIPED IMAGE - to be done: solve this - #define ORIGINAL_LIB_JPEG_REVERSE_ODD_ROWS - */ - -#include -#include "gd.h" -#include "gdhelpers.h" - -/* (Re)define some defines known by libjpeg */ -#define QUANT_2PASS_SUPPORTED - -#define RGB_RED 0 -#define RGB_GREEN 1 -#define RGB_BLUE 2 - -#define JSAMPLE unsigned char -#define MAXJSAMPLE (gdMaxColors-1) -#define BITS_IN_JSAMPLE 8 - -#define JSAMPROW int* -#define JDIMENSION int - -#define METHODDEF(type) static type -#define LOCAL(type) static type - - -/* We assume that right shift corresponds to signed division by 2 with - * rounding towards minus infinity. This is correct for typical "arithmetic - * shift" instructions that shift in copies of the sign bit. But some - * C compilers implement >> with an unsigned shift. For these machines you - * must define RIGHT_SHIFT_IS_UNSIGNED. - * RIGHT_SHIFT provides a proper signed right shift of an INT32 quantity. - * It is only applied with constant shift counts. SHIFT_TEMPS must be - * included in the variables of any routine using RIGHT_SHIFT. - */ - -#ifdef RIGHT_SHIFT_IS_UNSIGNED -#define SHIFT_TEMPS INT32 shift_temp; -#define RIGHT_SHIFT(x,shft) \ - ((shift_temp = (x)) < 0 ? \ - (shift_temp >> (shft)) | ((~((INT32) 0)) << (32-(shft))) : \ - (shift_temp >> (shft))) -#else -#define SHIFT_TEMPS -#define RIGHT_SHIFT(x,shft) ((x) >> (shft)) -#endif - - -#define range_limit(x) { if(x<0) x=0; if (x>255) x=255; } - - -#ifndef INT16 -#define INT16 short -#endif - -#ifndef UINT16 -#define UINT16 unsigned short -#endif - -#ifndef INT32 -#define INT32 int -#endif - -#ifndef FAR -#define FAR -#endif - - - -#ifndef boolean -#define boolean int -#endif - -#ifndef TRUE -#define TRUE 1 -#endif - -#ifndef FALSE -#define FALSE 0 -#endif - - -#define input_buf (im->tpixels) -#define output_buf (im->pixels) - -#endif - -#ifdef QUANT_2PASS_SUPPORTED - - -/* - * This module implements the well-known Heckbert paradigm for color - * quantization. Most of the ideas used here can be traced back to - * Heckbert's seminal paper - * Heckbert, Paul. "Color Image Quantization for Frame Buffer Display", - * Proc. SIGGRAPH '82, Computer Graphics v.16 #3 (July 1982), pp 297-304. - * - * In the first pass over the image, we accumulate a histogram showing the - * usage count of each possible color. To keep the histogram to a reasonable - * size, we reduce the precision of the input; typical practice is to retain - * 5 or 6 bits per color, so that 8 or 4 different input values are counted - * in the same histogram cell. - * - * Next, the color-selection step begins with a box representing the whole - * color space, and repeatedly splits the "largest" remaining box until we - * have as many boxes as desired colors. Then the mean color in each - * remaining box becomes one of the possible output colors. - * - * The second pass over the image maps each input pixel to the closest output - * color (optionally after applying a Floyd-Steinberg dithering correction). - * This mapping is logically trivial, but making it go fast enough requires - * considerable care. - * - * Heckbert-style quantizers vary a good deal in their policies for choosing - * the "largest" box and deciding where to cut it. The particular policies - * used here have proved out well in experimental comparisons, but better ones - * may yet be found. - * - * In earlier versions of the IJG code, this module quantized in YCbCr color - * space, processing the raw upsampled data without a color conversion step. - * This allowed the color conversion math to be done only once per colormap - * entry, not once per pixel. However, that optimization precluded other - * useful optimizations (such as merging color conversion with upsampling) - * and it also interfered with desired capabilities such as quantizing to an - * externally-supplied colormap. We have therefore abandoned that approach. - * The present code works in the post-conversion color space, typically RGB. - * - * To improve the visual quality of the results, we actually work in scaled - * RGB space, giving G distances more weight than R, and R in turn more than - * B. To do everything in integer math, we must use integer scale factors. - * The 2/3/1 scale factors used here correspond loosely to the relative - * weights of the colors in the NTSC grayscale equation. - * If you want to use this code to quantize a non-RGB color space, you'll - * probably need to change these scale factors. - */ - -#define R_SCALE 2 /* scale R distances by this much */ -#define G_SCALE 3 /* scale G distances by this much */ -#define B_SCALE 1 /* and B by this much */ - -/* Relabel R/G/B as components 0/1/2, respecting the RGB ordering defined - * in jmorecfg.h. As the code stands, it will do the right thing for R,G,B - * and B,G,R orders. If you define some other weird order in jmorecfg.h, - * you'll get compile errors until you extend this logic. In that case - * you'll probably want to tweak the histogram sizes too. - */ - -#if RGB_RED == 0 -#define C0_SCALE R_SCALE -#endif -#if RGB_BLUE == 0 -#define C0_SCALE B_SCALE -#endif -#if RGB_GREEN == 1 -#define C1_SCALE G_SCALE -#endif -#if RGB_RED == 2 -#define C2_SCALE R_SCALE -#endif -#if RGB_BLUE == 2 -#define C2_SCALE B_SCALE -#endif - - -/* - * First we have the histogram data structure and routines for creating it. - * - * The number of bits of precision can be adjusted by changing these symbols. - * We recommend keeping 6 bits for G and 5 each for R and B. - * If you have plenty of memory and cycles, 6 bits all around gives marginally - * better results; if you are short of memory, 5 bits all around will save - * some space but degrade the results. - * To maintain a fully accurate histogram, we'd need to allocate a "long" - * (preferably unsigned long) for each cell. In practice this is overkill; - * we can get by with 16 bits per cell. Few of the cell counts will overflow, - * and clamping those that do overflow to the maximum value will give close- - * enough results. This reduces the recommended histogram size from 256Kb - * to 128Kb, which is a useful savings on PC-class machines. - * (In the second pass the histogram space is re-used for pixel mapping data; - * in that capacity, each cell must be able to store zero to the number of - * desired colors. 16 bits/cell is plenty for that too.) - * Since the JPEG code is intended to run in small memory model on 80x86 - * machines, we can't just allocate the histogram in one chunk. Instead - * of a true 3-D array, we use a row of pointers to 2-D arrays. Each - * pointer corresponds to a C0 value (typically 2^5 = 32 pointers) and - * each 2-D array has 2^6*2^5 = 2048 or 2^6*2^6 = 4096 entries. Note that - * on 80x86 machines, the pointer row is in near memory but the actual - * arrays are in far memory (same arrangement as we use for image arrays). - */ - -#define MAXNUMCOLORS (MAXJSAMPLE+1) /* maximum size of colormap */ - -/* These will do the right thing for either R,G,B or B,G,R color order, - * but you may not like the results for other color orders. - */ -#define HIST_C0_BITS 5 /* bits of precision in R/B histogram */ -#define HIST_C1_BITS 6 /* bits of precision in G histogram */ -#define HIST_C2_BITS 5 /* bits of precision in B/R histogram */ - -/* Number of elements along histogram axes. */ -#define HIST_C0_ELEMS (1<cquantize; -#endif - register JSAMPROW ptr; - register histptr histp; - register hist3d histogram = cquantize->histogram; - int row; - JDIMENSION col; -#ifdef ORIGINAL_LIB_JPEG - JDIMENSION width = cinfo->output_width; -#else - int width = im->sx; - int num_rows = im->sy; -#endif - - for (row = 0; row < num_rows; row++) - { - ptr = input_buf[row]; - for (col = width; col > 0; col--) - { -#ifdef ORIGINAL_LIB_JPEG - int r = GETJSAMPLE (ptr[0]) >> C0_SHIFT; - int g = GETJSAMPLE (ptr[1]) >> C1_SHIFT; - int b = GETJSAMPLE (ptr[2]) >> C2_SHIFT; -#else - int r = gdTrueColorGetRed (*ptr) >> C0_SHIFT; - int g = gdTrueColorGetGreen (*ptr) >> C1_SHIFT; - int b = gdTrueColorGetBlue (*ptr) >> C2_SHIFT; - /* 2.0.12: Steven Brown: support a single totally transparent - color in the original. */ - if ((im->transparent >= 0) && (*ptr == im->transparent)) - { - ptr++; - continue; - } -#endif - /* get pixel value and index into the histogram */ - histp = &histogram[r][g][b]; - /* increment, check for overflow and undo increment if so. */ - if (++(*histp) == 0) - (*histp)--; -#ifdef ORIGINAL_LIB_JPEG - ptr += 3; -#else - ptr++; -#endif - } - } -} - - -/* - * Next we have the really interesting routines: selection of a colormap - * given the completed histogram. - * These routines work with a list of "boxes", each representing a rectangular - * subset of the input color space (to histogram precision). - */ - -typedef struct -{ - /* The bounds of the box (inclusive); expressed as histogram indexes */ - int c0min, c0max; - int c1min, c1max; - int c2min, c2max; - /* The volume (actually 2-norm) of the box */ - INT32 volume; - /* The number of nonzero histogram cells within this box */ - long colorcount; -} -box; - -typedef box *boxptr; - - -LOCAL (boxptr) find_biggest_color_pop (boxptr boxlist, int numboxes) -/* Find the splittable box with the largest color population */ -/* Returns NULL if no splittable boxes remain */ -{ - register boxptr boxp; - register int i; - register long maxc = 0; - boxptr which = NULL; - - for (i = 0, boxp = boxlist; i < numboxes; i++, boxp++) - { - if (boxp->colorcount > maxc && boxp->volume > 0) - { - which = boxp; - maxc = boxp->colorcount; - } - } - return which; -} - - -LOCAL (boxptr) find_biggest_volume (boxptr boxlist, int numboxes) -/* Find the splittable box with the largest (scaled) volume */ -/* Returns NULL if no splittable boxes remain */ -{ - register boxptr boxp; - register int i; - register INT32 maxv = 0; - boxptr which = NULL; - - for (i = 0, boxp = boxlist; i < numboxes; i++, boxp++) - { - if (boxp->volume > maxv) - { - which = boxp; - maxv = boxp->volume; - } - } - return which; -} - - -LOCAL (void) -#ifndef ORIGINAL_LIB_JPEG - update_box (gdImagePtr im, my_cquantize_ptr cquantize, boxptr boxp) -{ -#else - update_box (j_decompress_ptr cinfo, boxptr boxp) -/* Shrink the min/max bounds of a box to enclose only nonzero elements, */ -/* and recompute its volume and population */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; -#endif - hist3d histogram = cquantize->histogram; - histptr histp; - int c0, c1, c2; - int c0min, c0max, c1min, c1max, c2min, c2max; - INT32 dist0, dist1, dist2; - long ccount; - - c0min = boxp->c0min; - c0max = boxp->c0max; - c1min = boxp->c1min; - c1max = boxp->c1max; - c2min = boxp->c2min; - c2max = boxp->c2max; - - if (c0max > c0min) - for (c0 = c0min; c0 <= c0max; c0++) - for (c1 = c1min; c1 <= c1max; c1++) - { - histp = &histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - if (*histp++ != 0) - { - boxp->c0min = c0min = c0; - goto have_c0min; - } - } -have_c0min: - if (c0max > c0min) - for (c0 = c0max; c0 >= c0min; c0--) - for (c1 = c1min; c1 <= c1max; c1++) - { - histp = &histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - if (*histp++ != 0) - { - boxp->c0max = c0max = c0; - goto have_c0max; - } - } -have_c0max: - if (c1max > c1min) - for (c1 = c1min; c1 <= c1max; c1++) - for (c0 = c0min; c0 <= c0max; c0++) - { - histp = &histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - if (*histp++ != 0) - { - boxp->c1min = c1min = c1; - goto have_c1min; - } - } -have_c1min: - if (c1max > c1min) - for (c1 = c1max; c1 >= c1min; c1--) - for (c0 = c0min; c0 <= c0max; c0++) - { - histp = &histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - if (*histp++ != 0) - { - boxp->c1max = c1max = c1; - goto have_c1max; - } - } -have_c1max: - if (c2max > c2min) - for (c2 = c2min; c2 <= c2max; c2++) - for (c0 = c0min; c0 <= c0max; c0++) - { - histp = &histogram[c0][c1min][c2]; - for (c1 = c1min; c1 <= c1max; c1++, histp += HIST_C2_ELEMS) - if (*histp != 0) - { - boxp->c2min = c2min = c2; - goto have_c2min; - } - } -have_c2min: - if (c2max > c2min) - for (c2 = c2max; c2 >= c2min; c2--) - for (c0 = c0min; c0 <= c0max; c0++) - { - histp = &histogram[c0][c1min][c2]; - for (c1 = c1min; c1 <= c1max; c1++, histp += HIST_C2_ELEMS) - if (*histp != 0) - { - boxp->c2max = c2max = c2; - goto have_c2max; - } - } -have_c2max: - - /* Update box volume. - * We use 2-norm rather than real volume here; this biases the method - * against making long narrow boxes, and it has the side benefit that - * a box is splittable iff norm > 0. - * Since the differences are expressed in histogram-cell units, - * we have to shift back to JSAMPLE units to get consistent distances; - * after which, we scale according to the selected distance scale factors. - */ - dist0 = ((c0max - c0min) << C0_SHIFT) * C0_SCALE; - dist1 = ((c1max - c1min) << C1_SHIFT) * C1_SCALE; - dist2 = ((c2max - c2min) << C2_SHIFT) * C2_SCALE; - boxp->volume = dist0 * dist0 + dist1 * dist1 + dist2 * dist2; - - /* Now scan remaining volume of box and compute population */ - ccount = 0; - for (c0 = c0min; c0 <= c0max; c0++) - for (c1 = c1min; c1 <= c1max; c1++) - { - histp = &histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++, histp++) - if (*histp != 0) - { - ccount++; - } - } - boxp->colorcount = ccount; -} - - -LOCAL (int) -#ifdef ORIGINAL_LIB_JPEG -median_cut (j_decompress_ptr cinfo, boxptr boxlist, int numboxes, - int desired_colors) -#else -median_cut (gdImagePtr im, my_cquantize_ptr cquantize, - boxptr boxlist, int numboxes, int desired_colors) -#endif -/* Repeatedly select and split the largest box until we have enough boxes */ -{ - int n, lb; - int c0, c1, c2, cmax; - register boxptr b1, b2; - - while (numboxes < desired_colors) - { - /* Select box to split. - * Current algorithm: by population for first half, then by volume. - */ - if (numboxes * 2 <= desired_colors) - { - b1 = find_biggest_color_pop (boxlist, numboxes); - } - else - { - b1 = find_biggest_volume (boxlist, numboxes); - } - if (b1 == NULL) /* no splittable boxes left! */ - break; - b2 = &boxlist[numboxes]; /* where new box will go */ - /* Copy the color bounds to the new box. */ - b2->c0max = b1->c0max; - b2->c1max = b1->c1max; - b2->c2max = b1->c2max; - b2->c0min = b1->c0min; - b2->c1min = b1->c1min; - b2->c2min = b1->c2min; - /* Choose which axis to split the box on. - * Current algorithm: longest scaled axis. - * See notes in update_box about scaling distances. - */ - c0 = ((b1->c0max - b1->c0min) << C0_SHIFT) * C0_SCALE; - c1 = ((b1->c1max - b1->c1min) << C1_SHIFT) * C1_SCALE; - c2 = ((b1->c2max - b1->c2min) << C2_SHIFT) * C2_SCALE; - /* We want to break any ties in favor of green, then red, blue last. - * This code does the right thing for R,G,B or B,G,R color orders only. - */ -#if RGB_RED == 0 - cmax = c1; - n = 1; - if (c0 > cmax) - { - cmax = c0; - n = 0; - } - if (c2 > cmax) - { - n = 2; - } -#else - cmax = c1; - n = 1; - if (c2 > cmax) - { - cmax = c2; - n = 2; - } - if (c0 > cmax) - { - n = 0; - } -#endif - /* Choose split point along selected axis, and update box bounds. - * Current algorithm: split at halfway point. - * (Since the box has been shrunk to minimum volume, - * any split will produce two nonempty subboxes.) - * Note that lb value is max for lower box, so must be < old max. - */ - switch (n) - { - case 0: - lb = (b1->c0max + b1->c0min) / 2; - b1->c0max = lb; - b2->c0min = lb + 1; - break; - case 1: - lb = (b1->c1max + b1->c1min) / 2; - b1->c1max = lb; - b2->c1min = lb + 1; - break; - case 2: - lb = (b1->c2max + b1->c2min) / 2; - b1->c2max = lb; - b2->c2min = lb + 1; - break; - } - /* Update stats for boxes */ -#ifdef ORIGINAL_LIB_JPEG - update_box (cinfo, b1); - update_box (cinfo, b2); -#else - update_box (im, cquantize, b1); - update_box (im, cquantize, b2); -#endif - numboxes++; - } - return numboxes; -} - - -LOCAL (void) -#ifndef ORIGINAL_LIB_JPEG - compute_color (gdImagePtr im, my_cquantize_ptr cquantize, - boxptr boxp, int icolor) -{ -#else - compute_color (j_decompress_ptr cinfo, boxptr boxp, int icolor) -/* Compute representative color for a box, put it in colormap[icolor] */ -{ - /* Current algorithm: mean weighted by pixels (not colors) */ - /* Note it is important to get the rounding correct! */ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; -#endif - hist3d histogram = cquantize->histogram; - histptr histp; - int c0, c1, c2; - int c0min, c0max, c1min, c1max, c2min, c2max; - long count; - long total = 0; - long c0total = 0; - long c1total = 0; - long c2total = 0; - - c0min = boxp->c0min; - c0max = boxp->c0max; - c1min = boxp->c1min; - c1max = boxp->c1max; - c2min = boxp->c2min; - c2max = boxp->c2max; - - for (c0 = c0min; c0 <= c0max; c0++) - for (c1 = c1min; c1 <= c1max; c1++) - { - histp = &histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - { - if ((count = *histp++) != 0) - { - total += count; - c0total += - ((c0 << C0_SHIFT) + ((1 << C0_SHIFT) >> 1)) * count; - c1total += - ((c1 << C1_SHIFT) + ((1 << C1_SHIFT) >> 1)) * count; - c2total += - ((c2 << C2_SHIFT) + ((1 << C2_SHIFT) >> 1)) * count; - } - } - } - -#ifdef ORIGINAL_LIB_JPEG - cinfo->colormap[0][icolor] = (JSAMPLE) ((c0total + (total >> 1)) / total); - cinfo->colormap[1][icolor] = (JSAMPLE) ((c1total + (total >> 1)) / total); - cinfo->colormap[2][icolor] = (JSAMPLE) ((c2total + (total >> 1)) / total); -#else - im->red[icolor] = (int) ((c0total + (total >> 1)) / total); - im->green[icolor] = (int) ((c1total + (total >> 1)) / total); - im->blue[icolor] = (int) ((c2total + (total >> 1)) / total); -#endif -} - - -LOCAL (void) -#ifdef ORIGINAL_LIB_JPEG -select_colors (j_decompress_ptr cinfo, int desired_colors) -#else -select_colors (gdImagePtr im, my_cquantize_ptr cquantize, int desired_colors) -#endif -/* Master routine for color selection */ -{ - boxptr boxlist; - int numboxes; - int i; - - /* Allocate workspace for box list */ -#ifdef ORIGINAL_LIB_JPEG - boxlist = (boxptr) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, desired_colors * SIZEOF (box)); -#else - boxlist = (boxptr) gdMalloc (desired_colors * sizeof (box)); -#endif - /* Initialize one box containing whole space */ - numboxes = 1; - boxlist[0].c0min = 0; - boxlist[0].c0max = MAXJSAMPLE >> C0_SHIFT; - boxlist[0].c1min = 0; - boxlist[0].c1max = MAXJSAMPLE >> C1_SHIFT; - boxlist[0].c2min = 0; - boxlist[0].c2max = MAXJSAMPLE >> C2_SHIFT; -#ifdef ORIGINAL_LIB_JPEG - /* Shrink it to actually-used volume and set its statistics */ - update_box (cinfo, &boxlist[0]); - /* Perform median-cut to produce final box list */ - numboxes = median_cut (cinfo, boxlist, numboxes, desired_colors); - /* Compute the representative color for each box, fill colormap */ - for (i = 0; i < numboxes; i++) - compute_color (cinfo, &boxlist[i], i); - cinfo->actual_number_of_colors = numboxes; - TRACEMS1 (cinfo, 1, JTRC_QUANT_SELECTED, numboxes); -#else - /* Shrink it to actually-used volume and set its statistics */ - update_box (im, cquantize, &boxlist[0]); - /* Perform median-cut to produce final box list */ - numboxes = median_cut (im, cquantize, boxlist, numboxes, desired_colors); - /* Compute the representative color for each box, fill colormap */ - for (i = 0; i < numboxes; i++) - compute_color (im, cquantize, &boxlist[i], i); - im->colorsTotal = numboxes; - - /* If we had a pure transparency color, add it as the last palette entry. - * Skip incrementing the color count so that the dither / matching phase - * won't use it on pixels that shouldn't have been transparent. We'll - * increment it after all that finishes. */ - if (im->transparent >= 0) - { - /* Save the transparent color. */ - im->red[im->colorsTotal] = gdTrueColorGetRed (im->transparent); - im->green[im->colorsTotal] = gdTrueColorGetGreen (im->transparent); - im->blue[im->colorsTotal] = gdTrueColorGetBlue (im->transparent); - im->alpha[im->colorsTotal] = gdAlphaTransparent; - im->open[im->colorsTotal] = 0; - } - - gdFree (boxlist); -#endif -} - - -/* - * These routines are concerned with the time-critical task of mapping input - * colors to the nearest color in the selected colormap. - * - * We re-use the histogram space as an "inverse color map", essentially a - * cache for the results of nearest-color searches. All colors within a - * histogram cell will be mapped to the same colormap entry, namely the one - * closest to the cell's center. This may not be quite the closest entry to - * the actual input color, but it's almost as good. A zero in the cache - * indicates we haven't found the nearest color for that cell yet; the array - * is cleared to zeroes before starting the mapping pass. When we find the - * nearest color for a cell, its colormap index plus one is recorded in the - * cache for future use. The pass2 scanning routines call fill_inverse_cmap - * when they need to use an unfilled entry in the cache. - * - * Our method of efficiently finding nearest colors is based on the "locally - * sorted search" idea described by Heckbert and on the incremental distance - * calculation described by Spencer W. Thomas in chapter III.1 of Graphics - * Gems II (James Arvo, ed. Academic Press, 1991). Thomas points out that - * the distances from a given colormap entry to each cell of the histogram can - * be computed quickly using an incremental method: the differences between - * distances to adjacent cells themselves differ by a constant. This allows a - * fairly fast implementation of the "brute force" approach of computing the - * distance from every colormap entry to every histogram cell. Unfortunately, - * it needs a work array to hold the best-distance-so-far for each histogram - * cell (because the inner loop has to be over cells, not colormap entries). - * The work array elements have to be INT32s, so the work array would need - * 256Kb at our recommended precision. This is not feasible in DOS machines. - * - * To get around these problems, we apply Thomas' method to compute the - * nearest colors for only the cells within a small subbox of the histogram. - * The work array need be only as big as the subbox, so the memory usage - * problem is solved. Furthermore, we need not fill subboxes that are never - * referenced in pass2; many images use only part of the color gamut, so a - * fair amount of work is saved. An additional advantage of this - * approach is that we can apply Heckbert's locality criterion to quickly - * eliminate colormap entries that are far away from the subbox; typically - * three-fourths of the colormap entries are rejected by Heckbert's criterion, - * and we need not compute their distances to individual cells in the subbox. - * The speed of this approach is heavily influenced by the subbox size: too - * small means too much overhead, too big loses because Heckbert's criterion - * can't eliminate as many colormap entries. Empirically the best subbox - * size seems to be about 1/512th of the histogram (1/8th in each direction). - * - * Thomas' article also describes a refined method which is asymptotically - * faster than the brute-force method, but it is also far more complex and - * cannot efficiently be applied to small subboxes. It is therefore not - * useful for programs intended to be portable to DOS machines. On machines - * with plenty of memory, filling the whole histogram in one shot with Thomas' - * refined method might be faster than the present code --- but then again, - * it might not be any faster, and it's certainly more complicated. - */ - - -/* log2(histogram cells in update box) for each axis; this can be adjusted */ -#define BOX_C0_LOG (HIST_C0_BITS-3) -#define BOX_C1_LOG (HIST_C1_BITS-3) -#define BOX_C2_LOG (HIST_C2_BITS-3) - -#define BOX_C0_ELEMS (1<actual_number_of_colors; -#else - int numcolors = im->colorsTotal; -#endif - int maxc0, maxc1, maxc2; - int centerc0, centerc1, centerc2; - int i, x, ncolors; - INT32 minmaxdist, min_dist, max_dist, tdist; - INT32 mindist[MAXNUMCOLORS]; /* min distance to colormap entry i */ - - /* Compute true coordinates of update box's upper corner and center. - * Actually we compute the coordinates of the center of the upper-corner - * histogram cell, which are the upper bounds of the volume we care about. - * Note that since ">>" rounds down, the "center" values may be closer to - * min than to max; hence comparisons to them must be "<=", not "<". - */ - maxc0 = minc0 + ((1 << BOX_C0_SHIFT) - (1 << C0_SHIFT)); - centerc0 = (minc0 + maxc0) >> 1; - maxc1 = minc1 + ((1 << BOX_C1_SHIFT) - (1 << C1_SHIFT)); - centerc1 = (minc1 + maxc1) >> 1; - maxc2 = minc2 + ((1 << BOX_C2_SHIFT) - (1 << C2_SHIFT)); - centerc2 = (minc2 + maxc2) >> 1; - - /* For each color in colormap, find: - * 1. its minimum squared-distance to any point in the update box - * (zero if color is within update box); - * 2. its maximum squared-distance to any point in the update box. - * Both of these can be found by considering only the corners of the box. - * We save the minimum distance for each color in mindist[]; - * only the smallest maximum distance is of interest. - */ - minmaxdist = 0x7FFFFFFFL; - - for (i = 0; i < numcolors; i++) - { - /* We compute the squared-c0-distance term, then add in the other two. */ -#ifdef ORIGINAL_LIB_JPEG - x = GETJSAMPLE (cinfo->colormap[0][i]); -#else - x = im->red[i]; -#endif - if (x < minc0) - { - tdist = (x - minc0) * C0_SCALE; - min_dist = tdist * tdist; - tdist = (x - maxc0) * C0_SCALE; - max_dist = tdist * tdist; - } - else if (x > maxc0) - { - tdist = (x - maxc0) * C0_SCALE; - min_dist = tdist * tdist; - tdist = (x - minc0) * C0_SCALE; - max_dist = tdist * tdist; - } - else - { - /* within cell range so no contribution to min_dist */ - min_dist = 0; - if (x <= centerc0) - { - tdist = (x - maxc0) * C0_SCALE; - max_dist = tdist * tdist; - } - else - { - tdist = (x - minc0) * C0_SCALE; - max_dist = tdist * tdist; - } - } - -#ifdef ORIGINAL_LIB_JPEG - x = GETJSAMPLE (cinfo->colormap[1][i]); -#else - x = im->green[i]; -#endif - if (x < minc1) - { - tdist = (x - minc1) * C1_SCALE; - min_dist += tdist * tdist; - tdist = (x - maxc1) * C1_SCALE; - max_dist += tdist * tdist; - } - else if (x > maxc1) - { - tdist = (x - maxc1) * C1_SCALE; - min_dist += tdist * tdist; - tdist = (x - minc1) * C1_SCALE; - max_dist += tdist * tdist; - } - else - { - /* within cell range so no contribution to min_dist */ - if (x <= centerc1) - { - tdist = (x - maxc1) * C1_SCALE; - max_dist += tdist * tdist; - } - else - { - tdist = (x - minc1) * C1_SCALE; - max_dist += tdist * tdist; - } - } - -#ifdef ORIGINAL_LIB_JPEG - x = GETJSAMPLE (cinfo->colormap[2][i]); -#else - x = im->blue[i]; -#endif - if (x < minc2) - { - tdist = (x - minc2) * C2_SCALE; - min_dist += tdist * tdist; - tdist = (x - maxc2) * C2_SCALE; - max_dist += tdist * tdist; - } - else if (x > maxc2) - { - tdist = (x - maxc2) * C2_SCALE; - min_dist += tdist * tdist; - tdist = (x - minc2) * C2_SCALE; - max_dist += tdist * tdist; - } - else - { - /* within cell range so no contribution to min_dist */ - if (x <= centerc2) - { - tdist = (x - maxc2) * C2_SCALE; - max_dist += tdist * tdist; - } - else - { - tdist = (x - minc2) * C2_SCALE; - max_dist += tdist * tdist; - } - } - - mindist[i] = min_dist; /* save away the results */ - if (max_dist < minmaxdist) - minmaxdist = max_dist; - } - - /* Now we know that no cell in the update box is more than minmaxdist - * away from some colormap entry. Therefore, only colors that are - * within minmaxdist of some part of the box need be considered. - */ - ncolors = 0; - for (i = 0; i < numcolors; i++) - { - if (mindist[i] <= minmaxdist) - colorlist[ncolors++] = (JSAMPLE) i; - } - return ncolors; -} - - -LOCAL (void) find_best_colors ( -#ifdef ORIGINAL_LIB_JPEG - j_decompress_ptr cinfo, -#else - gdImagePtr im, my_cquantize_ptr cquantize, -#endif - int minc0, int minc1, int minc2, - int numcolors, JSAMPLE colorlist[], - JSAMPLE bestcolor[]) -/* Find the closest colormap entry for each cell in the update box, - * given the list of candidate colors prepared by find_nearby_colors. - * Return the indexes of the closest entries in the bestcolor[] array. - * This routine uses Thomas' incremental distance calculation method to - * find the distance from a colormap entry to successive cells in the box. - */ -{ - int ic0, ic1, ic2; - int i, icolor; - register INT32 *bptr; /* pointer into bestdist[] array */ - JSAMPLE *cptr; /* pointer into bestcolor[] array */ - INT32 dist0, dist1; /* initial distance values */ - register INT32 dist2; /* current distance in inner loop */ - INT32 xx0, xx1; /* distance increments */ - register INT32 xx2; - INT32 inc0, inc1, inc2; /* initial values for increments */ - /* This array holds the distance to the nearest-so-far color for each cell */ - INT32 bestdist[BOX_C0_ELEMS * BOX_C1_ELEMS * BOX_C2_ELEMS]; - - /* Initialize best-distance for each cell of the update box */ - bptr = bestdist; - for (i = BOX_C0_ELEMS * BOX_C1_ELEMS * BOX_C2_ELEMS - 1; i >= 0; i--) - *bptr++ = 0x7FFFFFFFL; - - /* For each color selected by find_nearby_colors, - * compute its distance to the center of each cell in the box. - * If that's less than best-so-far, update best distance and color number. - */ - - /* Nominal steps between cell centers ("x" in Thomas article) */ -#define STEP_C0 ((1 << C0_SHIFT) * C0_SCALE) -#define STEP_C1 ((1 << C1_SHIFT) * C1_SCALE) -#define STEP_C2 ((1 << C2_SHIFT) * C2_SCALE) - - for (i = 0; i < numcolors; i++) - { - int r, g, b; -#ifdef ORIGINAL_LIB_JPEG - - icolor = GETJSAMPLE (colorlist[i]); - r = GETJSAMPLE (cinfo->colormap[0][icolor]); - g = GETJSAMPLE (cinfo->colormap[1][icolor]); - b = GETJSAMPLE (cinfo->colormap[2][icolor]); -#else - icolor = colorlist[i]; - r = im->red[icolor]; - g = im->green[icolor]; - b = im->blue[icolor]; -#endif - - /* Compute (square of) distance from minc0/c1/c2 to this color */ - inc0 = (minc0 - r) * C0_SCALE; - dist0 = inc0 * inc0; - inc1 = (minc1 - g) * C1_SCALE; - dist0 += inc1 * inc1; - inc2 = (minc2 - b) * C2_SCALE; - dist0 += inc2 * inc2; - /* Form the initial difference increments */ - inc0 = inc0 * (2 * STEP_C0) + STEP_C0 * STEP_C0; - inc1 = inc1 * (2 * STEP_C1) + STEP_C1 * STEP_C1; - inc2 = inc2 * (2 * STEP_C2) + STEP_C2 * STEP_C2; - /* Now loop over all cells in box, updating distance per Thomas method */ - bptr = bestdist; - cptr = bestcolor; - xx0 = inc0; - for (ic0 = BOX_C0_ELEMS - 1; ic0 >= 0; ic0--) - { - dist1 = dist0; - xx1 = inc1; - for (ic1 = BOX_C1_ELEMS - 1; ic1 >= 0; ic1--) - { - dist2 = dist1; - xx2 = inc2; - for (ic2 = BOX_C2_ELEMS - 1; ic2 >= 0; ic2--) - { - if (dist2 < *bptr) - { - *bptr = dist2; - *cptr = (JSAMPLE) icolor; - } - dist2 += xx2; - xx2 += 2 * STEP_C2 * STEP_C2; - bptr++; - cptr++; - } - dist1 += xx1; - xx1 += 2 * STEP_C1 * STEP_C1; - } - dist0 += xx0; - xx0 += 2 * STEP_C0 * STEP_C0; - } - } -} - - -LOCAL (void) -fill_inverse_cmap ( -#ifdef ORIGINAL_LIB_JPEG - j_decompress_ptr cinfo, -#else - gdImagePtr im, my_cquantize_ptr cquantize, -#endif - int c0, int c1, int c2) -/* Fill the inverse-colormap entries in the update box that contains */ -/* histogram cell c0/c1/c2. (Only that one cell MUST be filled, but */ -/* we can fill as many others as we wish.) */ -{ -#ifdef ORIGINAL_LIB_JPEG - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; -#endif - hist3d histogram = cquantize->histogram; - int minc0, minc1, minc2; /* lower left corner of update box */ - int ic0, ic1, ic2; - register JSAMPLE *cptr; /* pointer into bestcolor[] array */ - register histptr cachep; /* pointer into main cache array */ - /* This array lists the candidate colormap indexes. */ - JSAMPLE colorlist[MAXNUMCOLORS]; - int numcolors; /* number of candidate colors */ - /* This array holds the actually closest colormap index for each cell. */ - JSAMPLE bestcolor[BOX_C0_ELEMS * BOX_C1_ELEMS * BOX_C2_ELEMS]; - - /* Convert cell coordinates to update box ID */ - c0 >>= BOX_C0_LOG; - c1 >>= BOX_C1_LOG; - c2 >>= BOX_C2_LOG; - - /* Compute true coordinates of update box's origin corner. - * Actually we compute the coordinates of the center of the corner - * histogram cell, which are the lower bounds of the volume we care about. - */ - minc0 = (c0 << BOX_C0_SHIFT) + ((1 << C0_SHIFT) >> 1); - minc1 = (c1 << BOX_C1_SHIFT) + ((1 << C1_SHIFT) >> 1); - minc2 = (c2 << BOX_C2_SHIFT) + ((1 << C2_SHIFT) >> 1); - - /* Determine which colormap entries are close enough to be candidates - * for the nearest entry to some cell in the update box. - */ -#ifdef ORIGINAL_LIB_JPEG - numcolors = find_nearby_colors (cinfo, minc0, minc1, minc2, colorlist); - - /* Determine the actually nearest colors. */ - find_best_colors (cinfo, minc0, minc1, minc2, numcolors, colorlist, - bestcolor); -#else - numcolors = - find_nearby_colors (im, cquantize, minc0, minc1, minc2, colorlist); - find_best_colors (im, cquantize, minc0, minc1, minc2, numcolors, - colorlist, bestcolor); -#endif - - /* Save the best color numbers (plus 1) in the main cache array */ - c0 <<= BOX_C0_LOG; /* convert ID back to base cell indexes */ - c1 <<= BOX_C1_LOG; - c2 <<= BOX_C2_LOG; - cptr = bestcolor; - for (ic0 = 0; ic0 < BOX_C0_ELEMS; ic0++) - { - for (ic1 = 0; ic1 < BOX_C1_ELEMS; ic1++) - { - cachep = &histogram[c0 + ic0][c1 + ic1][c2]; - for (ic2 = 0; ic2 < BOX_C2_ELEMS; ic2++) - { -#ifdef ORIGINAL_LIB_JPEG - *cachep++ = (histcell) (GETJSAMPLE (*cptr++) + 1); -#else - *cachep++ = (histcell) ((*cptr++) + 1); -#endif - } - } - } -} - - -/* - * Map some rows of pixels to the output colormapped representation. - */ - -METHODDEF (void) -#ifndef ORIGINAL_LIB_JPEG -pass2_no_dither (gdImagePtr im, my_cquantize_ptr cquantize) -{ - register int *inptr; - register unsigned char *outptr; - int width = im->sx; - int num_rows = im->sy; -#else -pass2_no_dither (j_decompress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows) -/* This version performs no dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - register JSAMPROW inptr, outptr; - JDIMENSION width = cinfo->output_width; -#endif - hist3d histogram = cquantize->histogram; - register int c0, c1, c2; - int row; - JDIMENSION col; - register histptr cachep; - - - for (row = 0; row < num_rows; row++) - { - inptr = input_buf[row]; - outptr = output_buf[row]; - for (col = width; col > 0; col--) - { - /* get pixel value and index into the cache */ - int r, g, b; -#ifdef ORIGINAL_LIB_JPEG - r = GETJSAMPLE (*inptr++); - g = GETJSAMPLE (*inptr++); - b = GETJSAMPLE (*inptr++); -#else - r = gdTrueColorGetRed (*inptr); - g = gdTrueColorGetGreen (*inptr); - b = gdTrueColorGetBlue (*inptr++); - - /* If the pixel is transparent, we assign it the palette index that - * will later be added at the end of the palette as the transparent - * index. */ - if ((im->transparent >= 0) && (im->transparent == *inptr)) - { - *outptr++ = im->colorsTotal; - continue; - } -#endif - c0 = r >> C0_SHIFT; - c1 = g >> C1_SHIFT; - c2 = b >> C2_SHIFT; - cachep = &histogram[c0][c1][c2]; - /* If we have not seen this color before, find nearest colormap entry */ - /* and update the cache */ - if (*cachep == 0) -#ifdef ORIGINAL_LIB_JPEG - fill_inverse_cmap (cinfo, c0, c1, c2); -#else - fill_inverse_cmap (im, cquantize, c0, c1, c2); -#endif - /* Now emit the colormap index for this cell */ -#ifdef ORIGINAL_LIB_JPEG - *outptr++ = (JSAMPLE) (*cachep - 1); -#else - *outptr++ = (*cachep - 1); -#endif - } - } -} - - -METHODDEF (void) -#ifndef ORIGINAL_LIB_JPEG -pass2_fs_dither (gdImagePtr im, my_cquantize_ptr cquantize) -{ -#else -pass2_fs_dither (j_decompress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows) -/* This version performs Floyd-Steinberg dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - JSAMPROW inptr; /* => current input pixel */ -#endif - hist3d histogram = cquantize->histogram; - register LOCFSERROR cur0, cur1, cur2; /* current error or pixel value */ - LOCFSERROR belowerr0, belowerr1, belowerr2; /* error for pixel below cur */ - LOCFSERROR bpreverr0, bpreverr1, bpreverr2; /* error for below/prev col */ - register FSERRPTR errorptr; /* => fserrors[] at column before current */ - histptr cachep; - int dir; /* +1 or -1 depending on direction */ - int dir3; /* 3*dir, for advancing inptr & errorptr */ - int row; - JDIMENSION col; -#ifdef ORIGINAL_LIB_JPEG - JSAMPROW outptr; /* => current output pixel */ - JDIMENSION width = cinfo->output_width; - JSAMPLE *range_limit = cinfo->sample_range_limit; - JSAMPROW colormap0 = cinfo->colormap[0]; - JSAMPROW colormap1 = cinfo->colormap[1]; - JSAMPROW colormap2 = cinfo->colormap[2]; -#else - int *inptr; /* => current input pixel */ - unsigned char *outptr; /* => current output pixel */ - int width = im->sx; - int num_rows = im->sy; - int *colormap0 = im->red; - int *colormap1 = im->green; - int *colormap2 = im->blue; -#endif - int *error_limit = cquantize->error_limiter; - - - SHIFT_TEMPS for (row = 0; row < num_rows; row++) - { - inptr = input_buf[row]; - outptr = output_buf[row]; - if (cquantize->on_odd_row) - { - /* work right to left in this row */ - inptr += (width - 1) * 3; /* so point to rightmost pixel */ - outptr += width - 1; - dir = -1; - dir3 = -3; - errorptr = cquantize->fserrors + (width + 1) * 3; /* => entry after last column */ -#ifdef ORIGINAL_LIB_JPEG_REVERSE_ODD_ROWS - cquantize->on_odd_row = FALSE; /* flip for next time */ -#endif - } - else - { - /* work left to right in this row */ - dir = 1; - dir3 = 3; - errorptr = cquantize->fserrors; /* => entry before first real column */ -#ifdef ORIGINAL_LIB_JPEG_REVERSE_ODD_ROWS - cquantize->on_odd_row = TRUE; /* flip for next time */ -#endif - } - /* Preset error values: no error propagated to first pixel from left */ - cur0 = cur1 = cur2 = 0; - /* and no error propagated to row below yet */ - belowerr0 = belowerr1 = belowerr2 = 0; - bpreverr0 = bpreverr1 = bpreverr2 = 0; - - for (col = width; col > 0; col--) - { - - /* If this pixel is transparent, we want to assign it to the special - * transparency color index past the end of the palette rather than - * go through matching / dithering. */ - if ((im->transparent >= 0) && (*inptr == im->transparent)) - { - *outptr = im->colorsTotal; - errorptr[0] = 0; - errorptr[1] = 0; - errorptr[2] = 0; - errorptr[3] = 0; - inptr += dir; - outptr += dir; - errorptr += dir3; - continue; - } - /* curN holds the error propagated from the previous pixel on the - * current line. Add the error propagated from the previous line - * to form the complete error correction term for this pixel, and - * round the error term (which is expressed * 16) to an integer. - * RIGHT_SHIFT rounds towards minus infinity, so adding 8 is correct - * for either sign of the error value. - * Note: errorptr points to *previous* column's array entry. - */ - cur0 = RIGHT_SHIFT (cur0 + errorptr[dir3 + 0] + 8, 4); - cur1 = RIGHT_SHIFT (cur1 + errorptr[dir3 + 1] + 8, 4); - cur2 = RIGHT_SHIFT (cur2 + errorptr[dir3 + 2] + 8, 4); - /* Limit the error using transfer function set by init_error_limit. - * See comments with init_error_limit for rationale. - */ - cur0 = error_limit[cur0]; - cur1 = error_limit[cur1]; - cur2 = error_limit[cur2]; - /* Form pixel value + error, and range-limit to 0..MAXJSAMPLE. - * The maximum error is +- MAXJSAMPLE (or less with error limiting); - * this sets the required size of the range_limit array. - */ -#ifdef ORIGINAL_LIB_JPEG - cur0 += GETJSAMPLE (inptr[0]); - cur1 += GETJSAMPLE (inptr[1]); - cur2 += GETJSAMPLE (inptr[2]); - cur0 = GETJSAMPLE (range_limit[cur0]); - cur1 = GETJSAMPLE (range_limit[cur1]); - cur2 = GETJSAMPLE (range_limit[cur2]); -#else - cur0 += gdTrueColorGetRed (*inptr); - cur1 += gdTrueColorGetGreen (*inptr); - cur2 += gdTrueColorGetBlue (*inptr); - range_limit (cur0); - range_limit (cur1); - range_limit (cur2); -#endif - - /* Index into the cache with adjusted pixel value */ - cachep = - &histogram[cur0 >> C0_SHIFT][cur1 >> C1_SHIFT][cur2 >> C2_SHIFT]; - /* If we have not seen this color before, find nearest colormap */ - /* entry and update the cache */ - if (*cachep == 0) -#ifdef ORIGINAL_LIB_JPEG - fill_inverse_cmap (cinfo, cur0 >> C0_SHIFT, cur1 >> C1_SHIFT, - cur2 >> C2_SHIFT); -#else - fill_inverse_cmap (im, cquantize, cur0 >> C0_SHIFT, - cur1 >> C1_SHIFT, cur2 >> C2_SHIFT); -#endif - /* Now emit the colormap index for this cell */ - { - register int pixcode = *cachep - 1; - *outptr = (JSAMPLE) pixcode; - /* Compute representation error for this pixel */ -#define GETJSAMPLE - cur0 -= GETJSAMPLE (colormap0[pixcode]); - cur1 -= GETJSAMPLE (colormap1[pixcode]); - cur2 -= GETJSAMPLE (colormap2[pixcode]); -#undef GETJSAMPLE - } - /* Compute error fractions to be propagated to adjacent pixels. - * Add these into the running sums, and simultaneously shift the - * next-line error sums left by 1 column. - */ - { - register LOCFSERROR bnexterr, delta; - - bnexterr = cur0; /* Process component 0 */ - delta = cur0 * 2; - cur0 += delta; /* form error * 3 */ - errorptr[0] = (FSERROR) (bpreverr0 + cur0); - cur0 += delta; /* form error * 5 */ - bpreverr0 = belowerr0 + cur0; - belowerr0 = bnexterr; - cur0 += delta; /* form error * 7 */ - bnexterr = cur1; /* Process component 1 */ - delta = cur1 * 2; - cur1 += delta; /* form error * 3 */ - errorptr[1] = (FSERROR) (bpreverr1 + cur1); - cur1 += delta; /* form error * 5 */ - bpreverr1 = belowerr1 + cur1; - belowerr1 = bnexterr; - cur1 += delta; /* form error * 7 */ - bnexterr = cur2; /* Process component 2 */ - delta = cur2 * 2; - cur2 += delta; /* form error * 3 */ - errorptr[2] = (FSERROR) (bpreverr2 + cur2); - cur2 += delta; /* form error * 5 */ - bpreverr2 = belowerr2 + cur2; - belowerr2 = bnexterr; - cur2 += delta; /* form error * 7 */ - } - /* At this point curN contains the 7/16 error value to be propagated - * to the next pixel on the current line, and all the errors for the - * next line have been shifted over. We are therefore ready to move on. - */ -#ifdef ORIGINAL_LIB_JPEG - inptr += dir3; /* Advance pixel pointers to next column */ -#else - inptr += dir; /* Advance pixel pointers to next column */ -#endif - outptr += dir; - errorptr += dir3; /* advance errorptr to current column */ - } - /* Post-loop cleanup: we must unload the final error values into the - * final fserrors[] entry. Note we need not unload belowerrN because - * it is for the dummy column before or after the actual array. - */ - errorptr[0] = (FSERROR) bpreverr0; /* unload prev errs into array */ - errorptr[1] = (FSERROR) bpreverr1; - errorptr[2] = (FSERROR) bpreverr2; - } -} - - -/* - * Initialize the error-limiting transfer function (lookup table). - * The raw F-S error computation can potentially compute error values of up to - * +- MAXJSAMPLE. But we want the maximum correction applied to a pixel to be - * much less, otherwise obviously wrong pixels will be created. (Typical - * effects include weird fringes at color-area boundaries, isolated bright - * pixels in a dark area, etc.) The standard advice for avoiding this problem - * is to ensure that the "corners" of the color cube are allocated as output - * colors; then repeated errors in the same direction cannot cause cascading - * error buildup. However, that only prevents the error from getting - * completely out of hand; Aaron Giles reports that error limiting improves - * the results even with corner colors allocated. - * A simple clamping of the error values to about +- MAXJSAMPLE/8 works pretty - * well, but the smoother transfer function used below is even better. Thanks - * to Aaron Giles for this idea. - */ - -LOCAL (void) -#ifdef ORIGINAL_LIB_JPEG -init_error_limit (j_decompress_ptr cinfo) -#else -init_error_limit (gdImagePtr im, my_cquantize_ptr cquantize) -#endif -/* Allocate and fill in the error_limiter table */ -{ - int *table; - int in, out; -#ifdef ORIGINAL_LIB_JPEG - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - table = (int *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE * 2 + 1) * SIZEOF (int)); -#else - cquantize->error_limiter_storage = - (int *) gdMalloc ((MAXJSAMPLE * 2 + 1) * sizeof (int)); - if (!cquantize->error_limiter_storage) - { - return; - } - table = cquantize->error_limiter_storage; -#endif - - table += MAXJSAMPLE; /* so can index -MAXJSAMPLE .. +MAXJSAMPLE */ - cquantize->error_limiter = table; - -#define STEPSIZE ((MAXJSAMPLE+1)/16) - /* Map errors 1:1 up to +- MAXJSAMPLE/16 */ - out = 0; - for (in = 0; in < STEPSIZE; in++, out++) - { - table[in] = out; - table[-in] = -out; - } - /* Map errors 1:2 up to +- 3*MAXJSAMPLE/16 */ - for (; in < STEPSIZE * 3; in++, out += (in & 1) ? 0 : 1) - { - table[in] = out; - table[-in] = -out; - } - /* Clamp the rest to final out value (which is (MAXJSAMPLE+1)/8) */ - for (; in <= MAXJSAMPLE; in++) - { - table[in] = out; - table[-in] = -out; - } -#undef STEPSIZE -} - - -/* - * Finish up at the end of each pass. - */ - -#ifdef ORIGINAL_LIB_JPEG -METHODDEF (void) -finish_pass1 (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - - /* Select the representative colors and fill in cinfo->colormap */ - cinfo->colormap = cquantize->sv_colormap; - select_colors (cinfo, cquantize->desired); - /* Force next pass to zero the color index table */ - cquantize->needs_zeroed = TRUE; -} - - -METHODDEF (void) -finish_pass2 (j_decompress_ptr cinfo) -{ - /* no work */ -} - -/* - * Initialize for each processing pass. - */ - -METHODDEF (void) -start_pass_2_quant (j_decompress_ptr cinfo, boolean is_pre_scan) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - int i; - - /* Only F-S dithering or no dithering is supported. */ - /* If user asks for ordered dither, give him F-S. */ - if (cinfo->dither_mode != JDITHER_NONE) - cinfo->dither_mode = JDITHER_FS; - - if (is_pre_scan) - { - /* Set up method pointers */ - cquantize->pub.color_quantize = prescan_quantize; - cquantize->pub.finish_pass = finish_pass1; - cquantize->needs_zeroed = TRUE; /* Always zero histogram */ - } - else - { - /* Set up method pointers */ - if (cinfo->dither_mode == JDITHER_FS) - cquantize->pub.color_quantize = pass2_fs_dither; - else - cquantize->pub.color_quantize = pass2_no_dither; - cquantize->pub.finish_pass = finish_pass2; - - /* Make sure color count is acceptable */ - i = cinfo->actual_number_of_colors; - if (i < 1) - ERREXIT1 (cinfo, JERR_QUANT_FEW_COLORS, 1); - if (i > MAXNUMCOLORS) - ERREXIT1 (cinfo, JERR_QUANT_MANY_COLORS, MAXNUMCOLORS); - - if (cinfo->dither_mode == JDITHER_FS) - { - size_t arraysize = (size_t) ((cinfo->output_width + 2) * - (3 * SIZEOF (FSERROR))); - /* Allocate Floyd-Steinberg workspace if we didn't already. */ - if (cquantize->fserrors == NULL) - cquantize->fserrors = (FSERRPTR) (*cinfo->mem->alloc_large) - ((j_common_ptr) cinfo, JPOOL_IMAGE, arraysize); - /* Initialize the propagated errors to zero. */ - jzero_far ((void FAR *) cquantize->fserrors, arraysize); - /* Make the error-limit table if we didn't already. */ - if (cquantize->error_limiter == NULL) - init_error_limit (cinfo); - cquantize->on_odd_row = FALSE; - } - - } - /* Zero the histogram or inverse color map, if necessary */ - if (cquantize->needs_zeroed) - { - for (i = 0; i < HIST_C0_ELEMS; i++) - { - jzero_far ((void FAR *) histogram[i], - HIST_C1_ELEMS * HIST_C2_ELEMS * SIZEOF (histcell)); - } - cquantize->needs_zeroed = FALSE; - } -} - - -/* - * Switch to a new external colormap between output passes. - */ - -METHODDEF (void) -new_color_map_2_quant (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - - /* Reset the inverse color map */ - cquantize->needs_zeroed = TRUE; -} -#else -static void -zeroHistogram (hist3d histogram) -{ - int i; - /* Zero the histogram or inverse color map */ - for (i = 0; i < HIST_C0_ELEMS; i++) - { - memset (histogram[i], - 0, HIST_C1_ELEMS * HIST_C2_ELEMS * sizeof (histcell)); - } -} -#endif - -/* - * Module initialization routine for 2-pass color quantization. - */ - -#ifdef ORIGINAL_LIB_JPEG -GLOBAL (void) -jinit_2pass_quantizer (j_decompress_ptr cinfo) -#else -void -gdImageTrueColorToPalette (gdImagePtr im, int dither, int colorsWanted) -#endif -{ - my_cquantize_ptr cquantize = NULL; - int i; - -#ifndef ORIGINAL_LIB_JPEG - /* Allocate the JPEG palette-storage */ - size_t arraysize; - int maxColors = gdMaxColors; - if (!im->trueColor) - { - /* Nothing to do! */ - return; - } - - /* If we have a transparent color (the alphaless mode of transparency), we - * must reserve a palette entry for it at the end of the palette. */ - if (im->transparent >= 0) - { - maxColors--; - } - if (colorsWanted > maxColors) - { - colorsWanted = maxColors; - } - im->pixels = gdCalloc (sizeof (unsigned char *), im->sy); - if (!im->pixels) - { - /* No can do */ - goto outOfMemory; - } - for (i = 0; (i < im->sy); i++) - { - im->pixels[i] = gdCalloc (sizeof (unsigned char *), im->sx); - if (!im->pixels[i]) - { - goto outOfMemory; - } - } -#endif - -#ifdef ORIGINAL_LIB_JPEG - cquantize = (my_cquantize_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF (my_cquantizer)); - cinfo->cquantize = (struct jpeg_color_quantizer *) cquantize; - cquantize->pub.start_pass = start_pass_2_quant; - cquantize->pub.new_color_map = new_color_map_2_quant; - /* Make sure jdmaster didn't give me a case I can't handle */ - if (cinfo->out_color_components != 3) - ERREXIT (cinfo, JERR_NOTIMPL); -#else - cquantize = (my_cquantize_ptr) gdCalloc (sizeof (my_cquantizer), 1); - if (!cquantize) - { - /* No can do */ - goto outOfMemory; - } -#endif - cquantize->fserrors = NULL; /* flag optional arrays not allocated */ - cquantize->error_limiter = NULL; - - - /* Allocate the histogram/inverse colormap storage */ -#ifdef ORIGINAL_LIB_JPEG - cquantize->histogram = (hist3d) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, HIST_C0_ELEMS * SIZEOF (hist2d)); - for (i = 0; i < HIST_C0_ELEMS; i++) - { - cquantize->histogram[i] = (hist2d) (*cinfo->mem->alloc_large) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - HIST_C1_ELEMS * HIST_C2_ELEMS * SIZEOF (histcell)); - } - cquantize->needs_zeroed = TRUE; /* histogram is garbage now */ -#else - cquantize->histogram = (hist3d) gdMalloc (HIST_C0_ELEMS * sizeof (hist2d)); - for (i = 0; i < HIST_C0_ELEMS; i++) - { - cquantize->histogram[i] = - (hist2d) gdMalloc (HIST_C1_ELEMS * HIST_C2_ELEMS * sizeof (histcell)); - if (!cquantize->histogram[i]) - { - goto outOfMemory; - } - } -#endif - -#ifdef ORIGINAL_LIB_JPEG - /* Allocate storage for the completed colormap, if required. - * We do this now since it is FAR storage and may affect - * the memory manager's space calculations. - */ - if (cinfo->enable_2pass_quant) - { - /* Make sure color count is acceptable */ - int desired = cinfo->desired_number_of_colors; - /* Lower bound on # of colors ... somewhat arbitrary as long as > 0 */ - if (desired < 8) - ERREXIT1 (cinfo, JERR_QUANT_FEW_COLORS, 8); - /* Make sure colormap indexes can be represented by JSAMPLEs */ - if (desired > MAXNUMCOLORS) - ERREXIT1 (cinfo, JERR_QUANT_MANY_COLORS, MAXNUMCOLORS); - cquantize->sv_colormap = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, (JDIMENSION) desired, - (JDIMENSION) 3); - cquantize->desired = desired; - } - else - cquantize->sv_colormap = NULL; - - /* Only F-S dithering or no dithering is supported. */ - /* If user asks for ordered dither, give him F-S. */ - if (cinfo->dither_mode != JDITHER_NONE) - cinfo->dither_mode = JDITHER_FS; - - /* Allocate Floyd-Steinberg workspace if necessary. - * This isn't really needed until pass 2, but again it is FAR storage. - * Although we will cope with a later change in dither_mode, - * we do not promise to honor max_memory_to_use if dither_mode changes. - */ - if (cinfo->dither_mode == JDITHER_FS) - { - cquantize->fserrors = (FSERRPTR) (*cinfo->mem->alloc_large) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (size_t) ((cinfo->output_width + 2) * (3 * SIZEOF (FSERROR)))); - /* Might as well create the error-limiting table too. */ - init_error_limit (cinfo); - } -#else - - cquantize->fserrors = (FSERRPTR) gdMalloc (3 * sizeof (FSERROR)); - init_error_limit (im, cquantize); - arraysize = (size_t) ((im->sx + 2) * (3 * sizeof (FSERROR))); - /* Allocate Floyd-Steinberg workspace. */ - cquantize->fserrors = gdCalloc (arraysize, 1); - if (!cquantize->fserrors) - { - goto outOfMemory; - } - cquantize->on_odd_row = FALSE; - - /* Do the work! */ - zeroHistogram (cquantize->histogram); - prescan_quantize (im, cquantize); - /* TBB 2.0.5: pass colorsWanted, not 256! */ - select_colors (im, cquantize, colorsWanted); - zeroHistogram (cquantize->histogram); - if (dither) - { - pass2_fs_dither (im, cquantize); - } - else - { - pass2_no_dither (im, cquantize); - } -#if 0 /* 2.0.12; we no longer attempt full alpha in palettes */ - if (cquantize->transparentIsPresent) - { - int mt = -1; - int mtIndex = -1; - for (i = 0; (i < im->colorsTotal); i++) - { - if (im->alpha[i] > mt) - { - mtIndex = i; - mt = im->alpha[i]; - } - } - for (i = 0; (i < im->colorsTotal); i++) - { - if (im->alpha[i] == mt) - { - im->alpha[i] = gdAlphaTransparent; - } - } - } - if (cquantize->opaqueIsPresent) - { - int mo = 128; - int moIndex = -1; - for (i = 0; (i < im->colorsTotal); i++) - { - if (im->alpha[i] < mo) - { - moIndex = i; - mo = im->alpha[i]; - } - } - for (i = 0; (i < im->colorsTotal); i++) - { - if (im->alpha[i] == mo) - { - im->alpha[i] = gdAlphaOpaque; - } - } - } -#endif - - /* If we had a 'transparent' color, increment the color count so it's - * officially in the palette and convert the transparent variable to point to - * an index rather than a color (Its data already exists and transparent - * pixels have already been mapped to it by this point, it is done late as to - * avoid color matching / dithering with it). */ - if (im->transparent >= 0) - { - im->transparent = im->colorsTotal; - im->colorsTotal++; - } - - /* Success! Get rid of the truecolor image data. */ - im->trueColor = 0; - /* Junk the truecolor pixels */ - for (i = 0; i < im->sy; i++) - { - gdFree (im->tpixels[i]); - } - gdFree (im->tpixels); - im->tpixels = 0; - /* Tediously free stuff. */ -outOfMemory: - if (im->trueColor) - { - /* On failure only */ - for (i = 0; i < im->sy; i++) - { - if (im->pixels[i]) - { - gdFree (im->pixels[i]); - } - } - if (im->pixels) - { - gdFree (im->pixels); - } - im->pixels = 0; - } - for (i = 0; i < HIST_C0_ELEMS; i++) - { - if (cquantize->histogram[i]) - { - gdFree (cquantize->histogram[i]); - } - } - if (cquantize->histogram) - { - gdFree (cquantize->histogram); - } - if (cquantize->fserrors) - { - gdFree (cquantize->fserrors); - } - if (cquantize->error_limiter_storage) - { - gdFree (cquantize->error_limiter_storage); - } - if (cquantize) - { - gdFree (cquantize); - } - -#endif -} - -#endif diff --git a/collects/plot/src/all/gdcache.c b/collects/plot/src/all/gdcache.c deleted file mode 100644 index b5b8913415..0000000000 --- a/collects/plot/src/all/gdcache.c +++ /dev/null @@ -1,218 +0,0 @@ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "gd.h" -#include "gdhelpers.h" - -#ifdef HAVE_LIBTTF -#define NEED_CACHE 1 -#else -#ifdef HAVE_LIBFREETYPE -#define NEED_CACHE 1 -#endif -#endif - -#ifdef NEED_CACHE - -/* - * gdcache.c - * - * Caches of pointers to user structs in which the least-recently-used - * element is replaced in the event of a cache miss after the cache has - * reached a given size. - * - * John Ellson (ellson@graphviz.org) Oct 31, 1997 - * - * Test this with: - * gcc -o gdcache -g -Wall -DTEST gdcache.c - * - * The cache is implemented by a singly-linked list of elements - * each containing a pointer to a user struct that is being managed by - * the cache. - * - * The head structure has a pointer to the most-recently-used - * element, and elements are moved to this position in the list each - * time they are used. The head also contains pointers to three - * user defined functions: - * - a function to test if a cached userdata matches some keydata - * - a function to provide a new userdata struct to the cache - * if there has been a cache miss. - * - a function to release a userdata struct when it is - * no longer being managed by the cache - * - * In the event of a cache miss the cache is allowed to grow up to - * a specified maximum size. After the maximum size is reached then - * the least-recently-used element is discarded to make room for the - * new. The most-recently-returned value is always left at the - * beginning of the list after retrieval. - * - * In the current implementation the cache is traversed by a linear - * search from most-recent to least-recent. This linear search - * probably limits the usefulness of this implementation to cache - * sizes of a few tens of elements. - */ - -#include "gdcache.h" - -/*********************************************************/ -/* implementation */ -/*********************************************************/ - - -/* create a new cache */ -gdCache_head_t * -gdCacheCreate (int size, - gdCacheTestFn_t gdCacheTest, - gdCacheFetchFn_t gdCacheFetch, - gdCacheReleaseFn_t gdCacheRelease) -{ - gdCache_head_t *head; - - head = (gdCache_head_t *) gdMalloc (sizeof (gdCache_head_t)); - head->mru = NULL; - head->size = size; - head->gdCacheTest = gdCacheTest; - head->gdCacheFetch = gdCacheFetch; - head->gdCacheRelease = gdCacheRelease; - return head; -} - -void -gdCacheDelete (gdCache_head_t * head) -{ - gdCache_element_t *elem, *prev; - - elem = head->mru; - while (elem) - { - (*(head->gdCacheRelease)) (elem->userdata); - prev = elem; - elem = elem->next; - gdFree ((char *) prev); - } - gdFree ((char *) head); -} - -void * -gdCacheGet (gdCache_head_t * head, void *keydata) -{ - int i = 0; - gdCache_element_t *elem, *prev = NULL, *prevprev = NULL; - void *userdata; - - elem = head->mru; - while (elem) - { - if ((*(head->gdCacheTest)) (elem->userdata, keydata)) - { - if (i) - { /* if not already most-recently-used */ - /* relink to top of list */ - prev->next = elem->next; - elem->next = head->mru; - head->mru = elem; - } - return elem->userdata; - } - prevprev = prev; - prev = elem; - elem = elem->next; - i++; - } - userdata = (*(head->gdCacheFetch)) (&(head->error), keydata); - if (!userdata) - { - /* if there was an error in the fetch then don't cache */ - return NULL; - } - if (i < head->size) - { /* cache still growing - add new elem */ - elem = (gdCache_element_t *) gdMalloc (sizeof (gdCache_element_t)); - } - else - { /* cache full - replace least-recently-used */ - /* preveprev becomes new end of list */ - prevprev->next = NULL; - elem = prev; - (*(head->gdCacheRelease)) (elem->userdata); - } - /* relink to top of list */ - elem->next = head->mru; - head->mru = elem; - elem->userdata = userdata; - return userdata; -} - - - -/*********************************************************/ -/* test stub */ -/*********************************************************/ - - -#ifdef TEST - -#include - -typedef struct -{ - int key; - int value; -} -key_value_t; - -static int -cacheTest (void *map, void *key) -{ - return (((key_value_t *) map)->key == *(int *) key); -} - -static void * -cacheFetch (char **error, void *key) -{ - key_value_t *map; - - map = (key_value_t *) gdMalloc (sizeof (key_value_t)); - map->key = *(int *) key; - map->value = 3; - - *error = NULL; - return (void *) map; -} - -static void -cacheRelease (void *map) -{ - gdFree ((char *) map); -} - -int -main (char *argv[], int argc) -{ - gdCache_head_t *cacheTable; - int elem, key; - - cacheTable = gdCacheCreate (3, cacheTest, cacheFetch, cacheRelease); - - key = 20; - elem = *(int *) gdCacheGet (cacheTable, &key); - key = 30; - elem = *(int *) gdCacheGet (cacheTable, &key); - key = 40; - elem = *(int *) gdCacheGet (cacheTable, &key); - key = 50; - elem = *(int *) gdCacheGet (cacheTable, &key); - key = 30; - elem = *(int *) gdCacheGet (cacheTable, &key); - key = 30; - elem = *(int *) gdCacheGet (cacheTable, &key); - - gdCacheDelete (cacheTable); - - return 0; -} - -#endif /* TEST */ -#endif /* HAVE_LIBTTF */ diff --git a/collects/plot/src/all/gdcache.h b/collects/plot/src/all/gdcache.h deleted file mode 100644 index 549e224a51..0000000000 --- a/collects/plot/src/all/gdcache.h +++ /dev/null @@ -1,85 +0,0 @@ -/* - * gdcache.h - * - * Caches of pointers to user structs in which the least-recently-used - * element is replaced in the event of a cache miss after the cache has - * reached a given size. - * - * John Ellson (ellson@graphviz.org) Oct 31, 1997 - * - * Test this with: - * gcc -o gdcache -g -Wall -DTEST gdcache.c - * - * The cache is implemented by a singly-linked list of elements - * each containing a pointer to a user struct that is being managed by - * the cache. - * - * The head structure has a pointer to the most-recently-used - * element, and elements are moved to this position in the list each - * time they are used. The head also contains pointers to three - * user defined functions: - * - a function to test if a cached userdata matches some keydata - * - a function to provide a new userdata struct to the cache - * if there has been a cache miss. - * - a function to release a userdata struct when it is - * no longer being managed by the cache - * - * In the event of a cache miss the cache is allowed to grow up to - * a specified maximum size. After the maximum size is reached then - * the least-recently-used element is discarded to make room for the - * new. The most-recently-returned value is always left at the - * beginning of the list after retrieval. - * - * In the current implementation the cache is traversed by a linear - * search from most-recent to least-recent. This linear search - * probably limits the usefulness of this implementation to cache - * sizes of a few tens of elements. - */ - -/*********************************************************/ -/* header */ -/*********************************************************/ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#ifndef NULL -#define NULL (void *)0 -#endif - -/* user defined function templates */ -typedef int (*gdCacheTestFn_t) (void *userdata, void *keydata); -typedef void *(*gdCacheFetchFn_t) (char **error, void *keydata); -typedef void (*gdCacheReleaseFn_t) (void *userdata); - -/* element structure */ -typedef struct gdCache_element_s gdCache_element_t; -struct gdCache_element_s -{ - gdCache_element_t *next; - void *userdata; -}; - -/* head structure */ -typedef struct gdCache_head_s gdCache_head_t; -struct gdCache_head_s -{ - gdCache_element_t *mru; - int size; - char *error; - gdCacheTestFn_t gdCacheTest; - gdCacheFetchFn_t gdCacheFetch; - gdCacheReleaseFn_t gdCacheRelease; -}; - -/* function templates */ -gdCache_head_t *gdCacheCreate (int size, - gdCacheTestFn_t gdCacheTest, - gdCacheFetchFn_t gdCacheFetch, - gdCacheReleaseFn_t gdCacheRelease); - -void gdCacheDelete (gdCache_head_t * head); - -void *gdCacheGet (gdCache_head_t * head, void *keydata); diff --git a/collects/plot/src/all/gdfontg.c b/collects/plot/src/all/gdfontg.c deleted file mode 100644 index 4fd0fceeae..0000000000 --- a/collects/plot/src/all/gdfontg.c +++ /dev/null @@ -1,4382 +0,0 @@ - - -/* - This is a header file for gd font, generated using - bdftogd version 0.51 by Jan Pazdziora, adelton@fi.muni.cz - from bdf font - -Misc-Fixed-Bold-R-Normal-Sans-15-140-75-75-C-90-ISO8859-2 - at Mon Jan 26 14:45:58 1998. - The original bdf was holding following copyright: - "Libor Skarvada, libor@informatics.muni.cz" - */ - - -#include "gdfontg.h" - -char gdFontGiantData[] = { -/* Char 0 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 1 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 0, 0, 0, - 0, 1, 1, 1, 1, 1, 1, 0, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 0, - 0, 1, 1, 1, 1, 1, 1, 0, 0, - 0, 0, 1, 1, 1, 1, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 2 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 0, - 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 0, - 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 0, - 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 0, - 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 0, - 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 0, - 0, 1, 0, 1, 0, 1, 0, 1, 0, - 1, 0, 1, 0, 1, 0, 1, 0, 0, - 0, 1, 0, 1, 0, 1, 0, 1, 0, - -/* Char 3 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 4 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 1, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 5 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 1, 1, 1, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 0, 1, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 1, 0, 0, 0, - 0, 1, 1, 1, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 1, 0, 0, - 0, 0, 1, 1, 0, 0, 1, 1, 0, - 0, 0, 1, 1, 1, 1, 1, 0, 0, - 0, 0, 1, 1, 0, 0, 1, 1, 0, - 0, 0, 1, 1, 0, 0, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 6 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 1, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 7 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 0, 0, 0, - 0, 1, 1, 0, 0, 1, 1, 0, 0, - 0, 1, 1, 0, 0, 1, 1, 0, 0, - 0, 0, 1, 1, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 8 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 9 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, 0, 0, - 1, 1, 1, 0, 1, 1, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 0, 0, 0, - 1, 1, 0, 1, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 10 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, 0, 0, - 0, 1, 1, 1, 1, 0, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 11 */ - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 12 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - -/* Char 13 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - -/* Char 14 */ - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 15 */ - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - -/* Char 16 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 17 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 18 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 19 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 20 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 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0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 1, 1, 0, 0, - 0, 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 0, 1, 1, 0, 0, 1, 1, 1, 0, - 0, 0, 1, 1, 1, 0, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 251 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 1, 1, 0, - 0, 0, 1, 1, 0, 1, 1, 0, 0, - 0, 1, 1, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 0, 1, 1, 0, 0, 1, 1, 1, 0, - 0, 0, 1, 1, 1, 0, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 252 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, 1, 1, 0, 0, - 0, 1, 1, 0, 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 0, 1, 1, 0, 0, 1, 1, 1, 0, - 0, 0, 1, 1, 1, 0, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 253 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 1, 1, 0, 0, - 0, 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 0, 0, 1, 1, 0, - 0, 1, 1, 0, 0, 1, 1, 1, 0, - 0, 0, 1, 1, 1, 0, 1, 1, 0, - 1, 0, 0, 0, 0, 0, 1, 1, 0, - 0, 1, 1, 1, 1, 1, 1, 0, 0, - -/* Char 254 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 1, 1, 0, - 0, 0, 0, 1, 1, 1, 1, 0, 0, - 0, 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 1, 0, 0, 0, 0, - -/* Char 255 */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, - - -}; - -gdFont gdFontGiantRep = { - 256, - 0, - 9, - 15, - gdFontGiantData -}; - -gdFontPtr gdFontGiant = &gdFontGiantRep; - -/* This file has not been truncated. */ diff --git a/collects/plot/src/all/gdfontg.h b/collects/plot/src/all/gdfontg.h deleted file mode 100644 index 9dce47053e..0000000000 --- a/collects/plot/src/all/gdfontg.h +++ /dev/null @@ -1,29 +0,0 @@ - -#ifndef _GDFONTG_H_ -#define _GDFONTG_H_ 1 - -#ifdef __cplusplus -extern "C" -{ -#endif - -/* - This is a header file for gd font, generated using - bdftogd version 0.51 by Jan Pazdziora, adelton@fi.muni.cz - from bdf font - -Misc-Fixed-Bold-R-Normal-Sans-15-140-75-75-C-90-ISO8859-2 - at Mon Jan 26 14:45:58 1998. - The original bdf was holding following copyright: - "Libor Skarvada, libor@informatics.muni.cz" - */ - - -#include "gd.h" - - extern gdFontPtr gdFontGiant; - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/collects/plot/src/all/gdfontl.c b/collects/plot/src/all/gdfontl.c deleted file mode 100644 index 8e8a279c8f..0000000000 --- a/collects/plot/src/all/gdfontl.c +++ /dev/null @@ -1,4639 +0,0 @@ - - -/* - This is a header file for gd font, generated using - bdftogd version 0.5 by Jan Pazdziora, adelton@fi.muni.cz - from bdf font - -misc-fixed-medium-r-normal--16-140-75-75-c-80-iso8859-2 - at Tue Jan 6 19:39:27 1998. - - The original bdf was holding following copyright: - "Libor Skarvada, libor@informatics.muni.cz" - */ - - -#include "gdfontl.h" - -char gdFontLargeData[] = { -/* Char 0 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 1 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 0, 0, 0, - 0, 1, 1, 1, 1, 1, 0, 0, - 1, 1, 1, 1, 1, 1, 1, 0, - 1, 1, 1, 1, 1, 1, 1, 0, - 0, 1, 1, 1, 1, 1, 0, 0, - 0, 0, 1, 1, 1, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 2 */ - 1, 0, 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, 0, 1, - -/* Char 3 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 1, 0, 0, 0, - 1, 0, 0, 0, 1, 0, 0, 0, - 1, 1, 1, 1, 1, 0, 0, 0, - 1, 0, 0, 0, 1, 0, 0, 0, - 1, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 4 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 1, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 5 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 1, 1, 1, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, 0, 0, - 0, 1, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 0, 0, - 0, 0, 0, 1, 0, 0, 1, 0, - 0, 0, 0, 1, 1, 1, 0, 0, - 0, 0, 0, 1, 0, 1, 0, 0, - 0, 0, 0, 1, 0, 0, 1, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 6 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 1, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 7 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, 1, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 8 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 1, 1, 1, 1, 1, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 1, 1, 1, 1, 1, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 9 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 1, 0, 0, 0, - 1, 1, 0, 0, 1, 0, 0, 0, - 1, 0, 1, 0, 1, 0, 0, 0, - 1, 0, 0, 1, 1, 0, 0, 0, - 1, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 10 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 1, 0, 0, 0, - 1, 0, 0, 0, 1, 0, 0, 0, - 0, 1, 0, 1, 0, 0, 0, 0, - 0, 1, 0, 1, 0, 0, 0, 0, - 0, 0, 1, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 11 */ - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 1, 1, 1, 1, 0, 0, 0, 0, - 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0, 1, 0, 0, 0, 0, 1, 0, - 0, 1, 0, 0, 0, 0, 1, 0, - 0, 1, 0, 0, 0, 0, 1, 0, - 0, 1, 0, 0, 0, 1, 1, 0, - 0, 0, 1, 1, 1, 0, 1, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 252 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 1, 0, 0, 0, 0, 1, 0, - 0, 1, 0, 0, 0, 0, 1, 0, - 0, 1, 0, 0, 0, 0, 1, 0, - 0, 1, 0, 0, 0, 0, 1, 0, - 0, 1, 0, 0, 0, 0, 1, 0, - 0, 1, 0, 0, 0, 1, 1, 0, - 0, 0, 1, 1, 1, 0, 1, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - -/* Char 253 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 1, 0, 0, - 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 1, 0, 0, 0, 0, 1, 0, - 0, 1, 0, 0, 0, 0, 1, 0, - 0, 1, 0, 0, 0, 0, 1, 0, - 0, 1, 0, 0, 0, 0, 1, 0, - 0, 1, 0, 0, 0, 0, 1, 0, - 0, 0, 1, 0, 0, 1, 1, 0, - 0, 0, 0, 1, 1, 0, 1, 0, - 0, 0, 0, 0, 0, 0, 1, 0, - 0, 0, 0, 0, 0, 1, 0, 0, - 0, 0, 1, 1, 1, 0, 0, 0, - -/* Char 254 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 1, 1, 1, 1, 1, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 1, 0, - 0, 0, 0, 0, 1, 1, 0, 0, - 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 1, 0, 0, 0, 0, - -/* Char 255 */ - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - - -}; - -gdFont gdFontLargeRep = { - 256, - 0, - 8, - 16, - gdFontLargeData -}; - -gdFontPtr gdFontLarge = &gdFontLargeRep; - -/* This file has not been truncated. */ diff --git a/collects/plot/src/all/gdfontl.h b/collects/plot/src/all/gdfontl.h deleted file mode 100644 index 591107350c..0000000000 --- a/collects/plot/src/all/gdfontl.h +++ /dev/null @@ -1,30 +0,0 @@ - -#ifndef _GDFONTL_H_ -#define _GDFONTL_H_ 1 - -#ifdef __cplusplus -extern "C" -{ -#endif - -/* - This is a header file for gd font, generated using - bdftogd version 0.5 by Jan Pazdziora, adelton@fi.muni.cz - from bdf font - -misc-fixed-medium-r-normal--16-140-75-75-c-80-iso8859-2 - at Tue Jan 6 19:39:27 1998. - - The original bdf was holding following copyright: - "Libor Skarvada, libor@informatics.muni.cz" - */ - - -#include "gd.h" - - extern gdFontPtr gdFontLarge; - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/collects/plot/src/all/gdfontmb.c b/collects/plot/src/all/gdfontmb.c deleted file mode 100644 index 5c168e6ac1..0000000000 --- a/collects/plot/src/all/gdfontmb.c +++ /dev/null @@ -1,3869 +0,0 @@ - - -/* - This is a header file for gd font, generated using - bdftogd version 0.5 by Jan Pazdziora, adelton@fi.muni.cz - from bdf font - -misc-fixed-bold-r-normal-sans-13-94-100-100-c-70-iso8859-2 - at Thu Jan 8 13:54:57 1998. - No copyright info was found in the original bdf. - */ - - -#include "gdfontmb.h" - -char gdFontMediumBoldData[] = { -/* Char 0 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 1 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 1, 1, 1, 1, 0, 0, - 1, 1, 1, 1, 1, 1, 0, - 0, 1, 1, 1, 1, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 2 */ - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 0, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 0, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 0, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 0, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 0, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 3 */ - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 1, 1, 0, 0, - 1, 1, 0, 1, 1, 0, 0, - 1, 1, 1, 1, 1, 0, 0, - 1, 1, 0, 1, 1, 0, 0, - 1, 1, 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 0, - 0, 0, 0, 1, 1, 0, 0, - 0, 0, 0, 1, 1, 0, 0, - 0, 0, 0, 1, 1, 0, 0, - 0, 0, 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 4 */ - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, - 1, 1, 1, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 1, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 5 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 1, 1, 1, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, - 0, 1, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 0, 0, - 0, 0, 1, 1, 0, 1, 0, - 0, 0, 1, 1, 1, 0, 0, - 0, 0, 1, 1, 0, 1, 0, - 0, 0, 1, 1, 0, 1, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 6 */ - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 1, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 7 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 1, 1, 1, 1, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 1, 1, 1, 1, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 8 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 0, - 1, 1, 1, 1, 1, 1, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 0, - 1, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 9 */ - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 1, 0, 1, 1, 0, - 1, 1, 1, 1, 1, 1, 0, - 1, 1, 0, 1, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 10 */ - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 1, 0, 0, 1, 0, 0, - 0, 1, 1, 1, 1, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 0, - 0, 0, 0, 1, 1, 0, 0, - 0, 0, 0, 1, 1, 0, 0, - 0, 0, 0, 1, 1, 0, 0, - 0, 0, 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 11 */ - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 1, 1, 1, 1, 0, 0, 0, - 1, 1, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 12 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 0, 0, 0, - 1, 1, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - -/* Char 13 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 1, - 0, 0, 1, 1, 1, 1, 1, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - -/* Char 14 */ - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 1, 1, 1, - 0, 0, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 15 */ - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - -/* Char 16 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 17 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 18 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 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1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 250 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 0, - 0, 1, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 251 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, 1, 1, - 1, 1, 0, 0, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 252 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - -/* Char 253 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 0, - 0, 1, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 1, 1, 0, 0, 1, 1, 0, - 0, 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 1, 1, 0, - 0, 0, 0, 0, 1, 1, 0, - 0, 1, 1, 1, 1, 0, 0, - -/* Char 254 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, 0, 0, - 0, 1, 1, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 0, 0, - 0, 1, 1, 0, 0, 0, 0, - 0, 1, 1, 0, 0, 0, 0, - 0, 1, 1, 0, 0, 0, 0, - 0, 1, 1, 0, 1, 1, 0, - 0, 0, 1, 1, 1, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 1, 1, 0, 0, 0, 0, - -/* Char 255 */ - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, - - -}; - -gdFont gdFontMediumBoldRep = { - 256, - 0, - 7, - 13, - gdFontMediumBoldData -}; - -gdFontPtr gdFontMediumBold = &gdFontMediumBoldRep; - -/* This file has not been truncated. */ diff --git a/collects/plot/src/all/gdfontmb.h b/collects/plot/src/all/gdfontmb.h deleted file mode 100644 index 361d9076e1..0000000000 --- a/collects/plot/src/all/gdfontmb.h +++ /dev/null @@ -1,28 +0,0 @@ - -#ifndef _GDFONTMB_H_ -#define _GDFONTMB_H_ 1 - -#ifdef __cplusplus -extern "C" -{ -#endif - -/* - This is a header file for gd font, generated using - bdftogd version 0.5 by Jan Pazdziora, adelton@fi.muni.cz - from bdf font - -misc-fixed-bold-r-normal-sans-13-94-100-100-c-70-iso8859-2 - at Thu Jan 8 13:54:57 1998. - No copyright info was found in the original bdf. - */ - - -#include "gd.h" - - extern gdFontPtr gdFontMediumBold; - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/collects/plot/src/all/gdfonts.c b/collects/plot/src/all/gdfonts.c deleted file mode 100644 index 765d36b21b..0000000000 --- a/collects/plot/src/all/gdfonts.c +++ /dev/null @@ -1,3869 +0,0 @@ - - -/* - This is a header file for gd font, generated using - bdftogd version 0.5 by Jan Pazdziora, adelton@fi.muni.cz - from bdf font - -misc-fixed-medium-r-semicondensed-sans-12-116-75-75-c-60-iso8859-2 - at Thu Jan 8 14:13:20 1998. - No copyright info was found in the original bdf. - */ - - -#include "gdfonts.h" - -char gdFontSmallData[] = { -/* Char 0 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 1 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 1, 1, 1, 0, 0, - 1, 1, 1, 1, 1, 0, - 0, 1, 1, 1, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 2 */ - 0, 0, 0, 0, 0, 0, - 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, 1, - 1, 0, 1, 0, 1, 0, - -/* Char 3 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 0, 1, 0, 0, 0, - 1, 0, 1, 0, 0, 0, - 1, 1, 1, 0, 0, 0, - 1, 0, 1, 0, 0, 0, - 1, 0, 1, 0, 0, 0, - 0, 0, 1, 1, 1, 0, - 0, 0, 0, 1, 0, 0, - 0, 0, 0, 1, 0, 0, - 0, 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 4 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 1, 1, 0, 0, 0, - 1, 0, 0, 0, 0, 0, - 1, 1, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, - 1, 0, 1, 1, 1, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 5 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 1, 1, 1, 0, 0, - 1, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, - 0, 1, 1, 1, 0, 0, - 0, 1, 1, 1, 0, 0, - 0, 1, 0, 0, 1, 0, - 0, 1, 1, 1, 0, 0, - 0, 1, 0, 1, 0, 0, - 0, 1, 0, 0, 1, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 6 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, - 1, 1, 1, 0, 0, 0, - 0, 0, 1, 1, 1, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 1, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 7 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, 0, - 1, 0, 0, 1, 0, 0, - 1, 0, 0, 1, 0, 0, - 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 8 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 1, 1, 1, 1, 1, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 9 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 1, 0, - 1, 1, 0, 0, 1, 0, - 1, 0, 1, 0, 1, 0, - 1, 0, 0, 1, 1, 0, - 1, 0, 0, 0, 1, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, - -/* Char 10 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 0, 1, 0, 1, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 11 */ - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 1, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 12 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 1, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - -/* Char 13 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, 1, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - -/* Char 14 */ - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 15 */ - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 1, 1, 1, 1, 1, 1, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - -/* Char 16 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 17 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 18 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 19 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 20 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 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1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 0, 1, 1, 1, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 247 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 248 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 1, 0, 1, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 0, 1, 1, 0, 0, - 1, 1, 0, 0, 1, 0, - 1, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 249 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 1, 0, 1, 0, 0, - 0, 0, 1, 0, 0, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 1, 1, 0, - 0, 1, 1, 0, 1, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 250 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, - 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 1, 1, 0, - 0, 1, 1, 0, 1, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 251 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 1, 0, 0, 1, 0, - 1, 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 1, 1, 0, - 0, 1, 1, 0, 1, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 252 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 1, 0, 1, 0, 0, - 0, 1, 0, 1, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 1, 1, 0, - 0, 1, 1, 0, 1, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - -/* Char 253 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 1, 0, - 0, 1, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 0, 1, 0, - 1, 0, 0, 1, 1, 0, - 0, 1, 1, 0, 1, 0, - 0, 0, 0, 0, 1, 0, - 0, 0, 0, 1, 0, 0, - 1, 1, 1, 0, 0, 0, - -/* Char 254 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 1, 0, 0, 0, 0, - 0, 1, 0, 0, 0, 0, - 1, 1, 1, 1, 0, 0, - 0, 1, 0, 0, 0, 0, - 0, 1, 0, 0, 0, 0, - 0, 1, 0, 0, 0, 0, - 0, 1, 0, 0, 1, 0, - 0, 0, 1, 1, 0, 0, - 0, 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, 0, - -/* Char 255 */ - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, - - -}; - -gdFont gdFontSmallRep = { - 256, - 0, - 6, - 13, - gdFontSmallData -}; - -gdFontPtr gdFontSmall = &gdFontSmallRep; - -/* This file has not been truncated. */ diff --git a/collects/plot/src/all/gdfonts.h b/collects/plot/src/all/gdfonts.h deleted file mode 100644 index c671d73a41..0000000000 --- a/collects/plot/src/all/gdfonts.h +++ /dev/null @@ -1,28 +0,0 @@ - -#ifndef _GDFONTS_H_ -#define _GDFONTS_H_ 1 - -#ifdef __cplusplus -extern "C" -{ -#endif - -/* - This is a header file for gd font, generated using - bdftogd version 0.5 by Jan Pazdziora, adelton@fi.muni.cz - from bdf font - -misc-fixed-medium-r-semicondensed-sans-12-116-75-75-c-60-iso8859-2 - at Thu Jan 8 14:13:20 1998. - No copyright info was found in the original bdf. - */ - - -#include "gd.h" - - extern gdFontPtr gdFontSmall; - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/collects/plot/src/all/gdfontt.c b/collects/plot/src/all/gdfontt.c deleted file mode 100644 index 3366b46417..0000000000 --- a/collects/plot/src/all/gdfontt.c +++ /dev/null @@ -1,2590 +0,0 @@ - - -/* - This is a header file for gd font, generated using - bdftogd version 0.5 by Jan Pazdziora, adelton@fi.muni.cz - from bdf font - -Misc-Fixed-Medium-R-Normal--8-80-75-75-C-50-ISO8859-2 - at Thu Jan 8 13:49:54 1998. - The original bdf was holding following copyright: - "Libor Skarvada, libor@informatics.muni.cz" - */ - - -#include "gdfontt.h" - -char gdFontTinyData[] = { -/* Char 0 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 1 */ - 0, 0, 0, 0, 0, - 0, 0, 1, 0, 0, - 0, 1, 1, 1, 0, - 1, 1, 1, 1, 1, - 0, 1, 1, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 2 */ - 0, 1, 0, 1, 0, - 1, 0, 1, 0, 0, - 0, 1, 0, 1, 0, - 1, 0, 1, 0, 0, - 0, 1, 0, 1, 0, - 1, 0, 1, 0, 0, - 0, 1, 0, 1, 0, - 1, 0, 1, 0, 0, - -/* Char 3 */ - 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, - 0, 1, 1, 1, 0, - 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, - 0, 0, 1, 1, 1, - 0, 0, 0, 1, 0, - 0, 0, 0, 1, 0, - -/* Char 4 */ - 1, 1, 1, 0, 0, - 1, 0, 0, 0, 0, - 1, 1, 0, 0, 0, - 1, 0, 1, 1, 1, - 1, 0, 1, 0, 0, - 0, 0, 1, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - -/* Char 5 */ - 0, 1, 1, 0, 0, - 1, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 1, 1, 0, - 0, 0, 1, 0, 1, - 0, 0, 1, 1, 0, - 0, 0, 1, 0, 1, - -/* Char 6 */ - 1, 0, 0, 0, 0, - 1, 0, 0, 0, 0, - 1, 0, 0, 0, 0, - 1, 1, 1, 0, 0, - 0, 0, 1, 1, 1, - 0, 0, 1, 0, 0, - 0, 0, 1, 1, 0, - 0, 0, 1, 0, 0, - -/* Char 7 */ - 0, 0, 0, 0, 0, - 0, 1, 0, 0, 0, - 1, 0, 1, 0, 0, - 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 8 */ - 0, 0, 0, 0, 0, - 0, 0, 1, 0, 0, - 0, 1, 1, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 9 */ - 1, 0, 0, 1, 0, - 1, 1, 0, 1, 0, - 1, 0, 1, 1, 0, - 1, 0, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 1, 1, - -/* Char 10 */ - 1, 0, 1, 0, 0, - 1, 0, 1, 0, 0, - 1, 0, 1, 0, 0, - 0, 1, 0, 0, 0, - 0, 0, 1, 1, 1, - 0, 0, 0, 1, 0, - 0, 0, 0, 1, 0, - 0, 0, 0, 1, 0, - -/* Char 11 */ - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 1, 1, 1, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 12 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - -/* Char 13 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 1, 1, 1, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - -/* Char 14 */ - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 1, 1, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 15 */ - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 1, 1, 1, 1, 1, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - -/* Char 16 */ - 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 17 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 18 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 19 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 20 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 21 */ - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 1, 1, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - -/* Char 22 */ - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 1, 1, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - -/* Char 23 */ - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 24 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - -/* Char 25 */ - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - -/* Char 26 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 1, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 27 */ - 0, 0, 0, 0, 0, - 0, 1, 0, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 1, 0, 0, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 28 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, - 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, - 0, 1, 0, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 29 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 1, 0, - 1, 1, 1, 1, 1, - 0, 0, 1, 0, 0, - 1, 1, 1, 1, 1, - 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 30 */ - 0, 0, 0, 0, 0, - 0, 0, 1, 1, 0, - 0, 1, 0, 0, 1, - 1, 1, 1, 0, 0, - 0, 1, 0, 0, 0, - 0, 1, 0, 0, 1, - 1, 0, 1, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 31 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 32 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 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0, 0, 1, 0, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 230 */ - 0, 0, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 1, 0, - 1, 0, 0, 0, 0, - 1, 0, 0, 0, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 231 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 1, 0, - 1, 0, 0, 0, 0, - 1, 0, 0, 0, 0, - 0, 1, 1, 1, 0, - 1, 1, 1, 0, 0, - -/* Char 232 */ - 0, 1, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 1, 0, - 1, 0, 0, 0, 0, - 1, 0, 0, 0, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 233 */ - 0, 0, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 1, 0, 1, 1, 0, - 1, 1, 0, 0, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 234 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 1, 0, 1, 1, 0, - 1, 1, 0, 0, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 1, 1, - -/* Char 235 */ - 0, 0, 0, 0, 0, - 1, 0, 0, 1, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 1, 0, 1, 1, 0, - 1, 1, 0, 0, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 236 */ - 0, 1, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 1, 0, 1, 1, 0, - 1, 1, 0, 0, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 237 */ - 0, 0, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 238 */ - 0, 0, 1, 0, 0, - 0, 1, 0, 1, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 1, 0, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 239 */ - 0, 0, 0, 1, 1, - 0, 0, 1, 0, 1, - 0, 0, 1, 0, 1, - 0, 1, 1, 0, 0, - 1, 0, 1, 0, 0, - 1, 0, 1, 0, 0, - 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 240 */ - 0, 0, 0, 1, 0, - 0, 0, 1, 1, 1, - 0, 0, 0, 1, 0, - 0, 1, 1, 1, 0, - 1, 0, 0, 1, 0, - 1, 0, 1, 1, 0, - 0, 1, 0, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 241 */ - 0, 0, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 1, 0, 1, 0, 0, - 1, 1, 0, 1, 0, - 1, 0, 0, 1, 0, - 1, 0, 0, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 242 */ - 0, 1, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 1, 0, 1, 0, 0, - 1, 1, 0, 1, 0, - 1, 0, 0, 1, 0, - 1, 0, 0, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 243 */ - 0, 0, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 1, 0, 0, 1, 0, - 1, 0, 0, 1, 0, - 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 244 */ - 0, 1, 1, 0, 0, - 1, 0, 0, 1, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 1, 0, 0, 1, 0, - 1, 0, 0, 1, 0, - 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 245 */ - 0, 1, 0, 0, 1, - 1, 0, 0, 1, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 1, 0, 0, 1, 0, - 1, 0, 0, 1, 0, - 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 246 */ - 1, 0, 0, 1, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 1, 0, 0, 1, 0, - 1, 0, 0, 1, 0, - 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 247 */ - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, - 1, 1, 1, 1, 0, - 0, 0, 0, 0, 0, - 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 248 */ - 0, 1, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 1, 0, 1, 0, 0, - 1, 1, 0, 1, 0, - 1, 0, 0, 0, 0, - 1, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - -/* Char 249 */ - 0, 1, 1, 0, 0, - 0, 1, 1, 0, 0, - 0, 0, 0, 0, 0, - 1, 0, 0, 1, 0, - 1, 0, 0, 1, 0, - 1, 0, 1, 1, 0, - 0, 1, 0, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 250 */ - 0, 0, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 1, 0, 0, 1, 0, - 1, 0, 0, 1, 0, - 1, 0, 1, 1, 0, - 0, 1, 0, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 251 */ - 0, 1, 0, 0, 1, - 1, 0, 0, 1, 0, - 0, 0, 0, 0, 0, - 1, 0, 0, 1, 0, - 1, 0, 0, 1, 0, - 1, 0, 1, 1, 0, - 0, 1, 0, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 252 */ - 1, 0, 0, 1, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 1, 0, 0, 1, 0, - 1, 0, 0, 1, 0, - 1, 0, 1, 1, 0, - 0, 1, 0, 1, 0, - 0, 0, 0, 0, 0, - -/* Char 253 */ - 0, 0, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 1, 0, 0, 1, 0, - 1, 0, 0, 1, 0, - 0, 1, 1, 1, 0, - 0, 0, 0, 1, 0, - 0, 1, 1, 0, 0, - -/* Char 254 */ - 0, 0, 0, 0, 0, - 0, 1, 0, 0, 0, - 0, 1, 0, 0, 0, - 1, 1, 1, 0, 0, - 0, 1, 0, 0, 0, - 0, 1, 0, 1, 0, - 0, 0, 1, 0, 0, - 0, 1, 1, 0, 0, - -/* Char 255 */ - 0, 0, 0, 0, 0, - 0, 0, 1, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, - - -}; - -gdFont gdFontTinyRep = { - 256, - 0, - 5, - 8, - gdFontTinyData -}; - -gdFontPtr gdFontTiny = &gdFontTinyRep; - -/* This file has not been truncated. */ diff --git a/collects/plot/src/all/gdfontt.h b/collects/plot/src/all/gdfontt.h deleted file mode 100644 index 609dce1c14..0000000000 --- a/collects/plot/src/all/gdfontt.h +++ /dev/null @@ -1,29 +0,0 @@ - -#ifndef _GDFONTT_H_ -#define _GDFONTT_H_ 1 - -#ifdef __cplusplus -extern "C" -{ -#endif - -/* - This is a header file for gd font, generated using - bdftogd version 0.5 by Jan Pazdziora, adelton@fi.muni.cz - from bdf font - -Misc-Fixed-Medium-R-Normal--8-80-75-75-C-50-ISO8859-2 - at Thu Jan 8 13:49:54 1998. - The original bdf was holding following copyright: - "Libor Skarvada, libor@informatics.muni.cz" - */ - - -#include "gd.h" - - extern gdFontPtr gdFontTiny; - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/collects/plot/src/all/gdhelpers.c b/collects/plot/src/all/gdhelpers.c deleted file mode 100644 index bd83f5c3c0..0000000000 --- a/collects/plot/src/all/gdhelpers.c +++ /dev/null @@ -1,101 +0,0 @@ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "gd.h" -#include "gdhelpers.h" -#include -#include - -/* TBB: gd_strtok_r is not portable; provide an implementation */ - -#define SEP_TEST (separators[*((unsigned char *) s)]) - -char * -gd_strtok_r (char *s, char *sep, char **state) -{ - char separators[256]; - char *start; - char *result = 0; - memset (separators, 0, sizeof (separators)); - while (*sep) - { - separators[*((unsigned char *) sep)] = 1; - sep++; - } - if (!s) - { - /* Pick up where we left off */ - s = *state; - } - start = s; - /* 1. EOS */ - if (!(*s)) - { - *state = s; - return 0; - } - /* 2. Leading separators, if any */ - if (SEP_TEST) - { - do - { - s++; - } - while (SEP_TEST); - /* 2a. EOS after separators only */ - if (!(*s)) - { - *state = s; - return 0; - } - } - /* 3. A token */ - result = s; - do - { - /* 3a. Token at end of string */ - if (!(*s)) - { - *state = s; - return result; - } - s++; - } - while (!SEP_TEST); - /* 4. Terminate token and skip trailing separators */ - *s = '\0'; - do - { - s++; - } - while (SEP_TEST); - /* 5. Return token */ - *state = s; - return result; -} - -void * -gdCalloc (size_t nmemb, size_t size) -{ - return calloc (nmemb, size); -} - -void * -gdMalloc (size_t size) -{ - return malloc (size); -} - -void * -gdRealloc (void *ptr, size_t size) -{ - return realloc (ptr, size); -} - -void -gdFree (void *ptr) -{ - free (ptr); -} diff --git a/collects/plot/src/all/gdhelpers.h b/collects/plot/src/all/gdhelpers.h deleted file mode 100644 index 3f2e9dcfdb..0000000000 --- a/collects/plot/src/all/gdhelpers.h +++ /dev/null @@ -1,19 +0,0 @@ -#ifndef GDHELPERS_H -#define GDHELPERS_H 1 - -/* sys/types.h is needed for size_t on Sparc-SunOS-4.1 */ -#include - -/* TBB: strtok_r is not universal; provide an implementation of it. */ - -extern char *gd_strtok_r (char *s, char *sep, char **state); - -/* These functions wrap memory management. gdFree is - in gd.h, where callers can utilize it to correctly - free memory allocated by these functions with the - right version of free(). */ -void *gdCalloc (size_t nmemb, size_t size); -void *gdMalloc (size_t size); -void *gdRealloc (void *ptr, size_t size); - -#endif /* GDHELPERS_H */ diff --git a/collects/plot/src/all/gdkanji.c b/collects/plot/src/all/gdkanji.c deleted file mode 100644 index a6d090025d..0000000000 --- a/collects/plot/src/all/gdkanji.c +++ /dev/null @@ -1,660 +0,0 @@ - -/* gdkanji.c (Kanji code converter) */ -/* written by Masahito Yamaga (ma@yama-ga.com) */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include "gd.h" -#include "gdhelpers.h" - -#ifdef HAVE_ERRNO_H -#include -#endif - -#include -#if defined(HAVE_ICONV_H) -#include -#endif - -#ifndef HAVE_ICONV_T_DEF -typedef void *iconv_t; -#endif - -#ifndef HAVE_ICONV -#define ICONV_CONST /**/ - iconv_t iconv_open (const char *, const char *); -size_t iconv (iconv_t, ICONV_CONST char **, size_t *, char **, size_t *); -int iconv_close (iconv_t); - -iconv_t -iconv_open (const char *tocode, const char *fromcode) -{ - return (iconv_t) (-1); -} - -size_t -iconv (iconv_t cd, ICONV_CONST char **inbuf, size_t * inbytesleft, - char **outbuf, size_t * outbytesleft) -{ - return 0; -} - -int -iconv_close (iconv_t cd) -{ - return 0; -} - -#endif /* !HAVE_ICONV */ - -#define LIBNAME "any2eucjp()" - -#if defined(__MSC__) || defined(__BORLANDC__) || defined(__TURBOC__) || defined(_Windows) || defined(MSDOS) -#ifndef SJISPRE -#define SJISPRE 1 -#endif -#endif - -#ifdef TRUE -#undef TRUE -#endif -#ifdef FALSE -#undef FALSE -#endif - -#define TRUE 1 -#define FALSE 0 - -#define NEW 1 -#define OLD 2 -#define ESCI 3 -#define NEC 4 -#define EUC 5 -#define SJIS 6 -#define EUCORSJIS 7 -#define ASCII 8 - -#define NEWJISSTR "JIS7" -#define OLDJISSTR "jis" -#define EUCSTR "eucJP" -#define SJISSTR "SJIS" - -#define ESC 27 -#define SS2 142 - -static void -debug (const char *format, ...) -{ -#ifdef DEBUG - va_list args; - - va_start (args, format); - fprintf (stdout, "%s: ", LIBNAME); - vfprintf (stdout, format, args); - fprintf (stdout, "\n"); - va_end (args); -#endif -} - -static void -error (const char *format, ...) -{ - va_list args; - - va_start (args, format); - fprintf (stderr, "%s: ", LIBNAME); - vfprintf (stderr, format, args); - fprintf (stderr, "\n"); - va_end (args); -} - -/* DetectKanjiCode() derived from DetectCodeType() by Ken Lunde. */ - -static int -DetectKanjiCode (unsigned char *str) -{ - static int whatcode = ASCII; - int oldcode = ASCII; - int c, i; - char *lang = NULL; - - c = '\1'; - i = 0; - - if (whatcode != EUCORSJIS && whatcode != ASCII) - { - oldcode = whatcode; - whatcode = ASCII; - } - - while ((whatcode == EUCORSJIS || whatcode == ASCII) && c != '\0') - { - if ((c = str[i++]) != '\0') - { - if (c == ESC) - { - c = str[i++]; - if (c == '$') - { - c = str[i++]; - if (c == 'B') - whatcode = NEW; - else if (c == '@') - whatcode = OLD; - } - else if (c == '(') - { - c = str[i++]; - if (c == 'I') - whatcode = ESCI; - } - else if (c == 'K') - whatcode = NEC; - } - else if ((c >= 129 && c <= 141) || (c >= 143 && c <= 159)) - whatcode = SJIS; - else if (c == SS2) - { - c = str[i++]; - if ((c >= 64 && c <= 126) || (c >= 128 && c <= 160) - || (c >= 224 && c <= 252)) - whatcode = SJIS; - else if (c >= 161 && c <= 223) - whatcode = EUCORSJIS; - } - else if (c >= 161 && c <= 223) - { - c = str[i++]; - if (c >= 240 && c <= 254) - whatcode = EUC; - else if (c >= 161 && c <= 223) - whatcode = EUCORSJIS; - else if (c >= 224 && c <= 239) - { - whatcode = EUCORSJIS; - while (c >= 64 && c != '\0' && whatcode == EUCORSJIS) - { - if (c >= 129) - { - if (c <= 141 || (c >= 143 && c <= 159)) - whatcode = SJIS; - else if (c >= 253 && c <= 254) - whatcode = EUC; - } - c = str[i++]; - } - } - else if (c <= 159) - whatcode = SJIS; - } - else if (c >= 240 && c <= 254) - whatcode = EUC; - else if (c >= 224 && c <= 239) - { - c = str[i++]; - if ((c >= 64 && c <= 126) || (c >= 128 && c <= 160)) - whatcode = SJIS; - else if (c >= 253 && c <= 254) - whatcode = EUC; - else if (c >= 161 && c <= 252) - whatcode = EUCORSJIS; - } - } - } - -#ifdef DEBUG - if (whatcode == ASCII) - debug ("Kanji code not included."); - else if (whatcode == EUCORSJIS) - debug ("Kanji code not detected."); - else - debug ("Kanji code detected at %d byte.", i); -#endif - - if (whatcode == EUCORSJIS && oldcode != ASCII) - whatcode = oldcode; - - if (whatcode == EUCORSJIS) - { - if (getenv ("LC_ALL")) - lang = getenv ("LC_ALL"); - else if (getenv ("LC_CTYPE")) - lang = getenv ("LC_CTYPE"); - else if (getenv ("LANG")) - lang = getenv ("LANG"); - - if (lang) - { - if (strcmp (lang, "ja_JP.SJIS") == 0 || -#ifdef hpux - strcmp (lang, "japanese") == 0 || -#endif - strcmp (lang, "ja_JP.mscode") == 0 || - strcmp (lang, "ja_JP.PCK") == 0) - whatcode = SJIS; - else if (strncmp (lang, "ja", 2) == 0) -#ifdef SJISPRE - whatcode = SJIS; -#else - whatcode = EUC; -#endif - } - } - - if (whatcode == EUCORSJIS) -#ifdef SJISPRE - whatcode = SJIS; -#else - whatcode = EUC; -#endif - - return whatcode; -} - -/* SJIStoJIS() is sjis2jis() by Ken Lunde. */ - -static void -SJIStoJIS (int *p1, int *p2) -{ - register unsigned char c1 = *p1; - register unsigned char c2 = *p2; - register int adjust = c2 < 159; - register int rowOffset = c1 < 160 ? 112 : 176; - register int cellOffset = adjust ? (31 + (c2 > 127)) : 126; - - *p1 = ((c1 - rowOffset) << 1) - adjust; - *p2 -= cellOffset; -} - -/* han2zen() was derived from han2zen() written by Ken Lunde. */ - -#define IS_DAKU(c) ((c >= 182 && c <= 196) || (c >= 202 && c <= 206) || (c == 179)) -#define IS_HANDAKU(c) (c >= 202 && c <= 206) - -static void -han2zen (int *p1, int *p2) -{ - int c = *p1; - int daku = FALSE; - int handaku = FALSE; - int mtable[][2] = { - {129, 66}, - {129, 117}, - {129, 118}, - {129, 65}, - {129, 69}, - {131, 146}, - {131, 64}, - {131, 66}, - {131, 68}, - {131, 70}, - {131, 72}, - {131, 131}, - {131, 133}, - {131, 135}, - {131, 98}, - {129, 91}, - {131, 65}, - {131, 67}, - {131, 69}, - {131, 71}, - {131, 73}, - {131, 74}, - {131, 76}, - {131, 78}, - {131, 80}, - {131, 82}, - {131, 84}, - {131, 86}, - {131, 88}, - {131, 90}, - {131, 92}, - {131, 94}, - {131, 96}, - {131, 99}, - {131, 101}, - {131, 103}, - {131, 105}, - {131, 106}, - {131, 107}, - {131, 108}, - {131, 109}, - {131, 110}, - {131, 113}, - {131, 116}, - {131, 119}, - {131, 122}, - {131, 125}, - {131, 126}, - {131, 128}, - {131, 129}, - {131, 130}, - {131, 132}, - {131, 134}, - {131, 136}, - {131, 137}, - {131, 138}, - {131, 139}, - {131, 140}, - {131, 141}, - {131, 143}, - {131, 147}, - {129, 74}, - {129, 75} - }; - - if (*p2 == 222 && IS_DAKU (*p1)) - daku = TRUE; /* Daku-ten */ - else if (*p2 == 223 && IS_HANDAKU (*p1)) - handaku = TRUE; /* Han-daku-ten */ - - *p1 = mtable[c - 161][0]; - *p2 = mtable[c - 161][1]; - - if (daku) - { - if ((*p2 >= 74 && *p2 <= 103) || (*p2 >= 110 && *p2 <= 122)) - (*p2)++; - else if (*p2 == 131 && *p2 == 69) - *p2 = 148; - } - else if (handaku && *p2 >= 110 && *p2 <= 122) - (*p2) += 2; -} - -/* Recast strcpy to handle unsigned chars used below. */ -#define ustrcpy(A,B) (strcpy((char*)(A),(const char*)(B))) - -static void -do_convert (unsigned char *to, unsigned char *from, const char *code) -{ -#ifdef HAVE_ICONV - iconv_t cd; - size_t from_len, to_len; - - if ((cd = iconv_open (EUCSTR, code)) == (iconv_t) - 1) - { - error ("iconv_open() error"); -#ifdef HAVE_ERRNO_H - if (errno == EINVAL) - error ("invalid code specification: \"%s\" or \"%s\"", EUCSTR, code); -#endif - strcpy ((char *) to, (const char *) from); - return; - } - - from_len = strlen ((const char *) from) + 1; - to_len = BUFSIZ; - - if ((int) (iconv (cd, (char **) &from, &from_len, (char **) &to, &to_len)) - == -1) - { -#ifdef HAVE_ERRNO_H - if (errno == EINVAL) - error ("invalid end of input string"); - else if (errno == EILSEQ) - error ("invalid code in input string"); - else if (errno == E2BIG) - error ("output buffer overflow at do_convert()"); - else -#endif - error ("something happen"); - strcpy ((char *) to, (const char *) from); - return; - } - - if (iconv_close (cd) != 0) - { - error ("iconv_close() error"); - } -#else - int p1, p2, i, j; - int jisx0208 = FALSE; - int hankaku = FALSE; - - j = 0; - if (strcmp (code, NEWJISSTR) == 0 || strcmp (code, OLDJISSTR) == 0) - { - for (i = 0; from[i] != '\0' && j < BUFSIZ; i++) - { - if (from[i] == ESC) - { - i++; - if (from[i] == '$') - { - jisx0208 = TRUE; - hankaku = FALSE; - i++; - } - else if (from[i] == '(') - { - jisx0208 = FALSE; - i++; - if (from[i] == 'I') /* Hankaku Kana */ - hankaku = TRUE; - else - hankaku = FALSE; - } - } - else - { - if (jisx0208) - to[j++] = from[i] + 128; - else if (hankaku) - { - to[j++] = SS2; - to[j++] = from[i] + 128; - } - else - to[j++] = from[i]; - } - } - } - else if (strcmp (code, SJISSTR) == 0) - { - for (i = 0; from[i] != '\0' && j < BUFSIZ; i++) - { - p1 = from[i]; - if (p1 < 127) - to[j++] = p1; - else if ((p1 >= 161) && (p1 <= 223)) - { /* Hankaku Kana */ - to[j++] = SS2; - to[j++] = p1; - } - else - { - p2 = from[++i]; - SJIStoJIS (&p1, &p2); - to[j++] = p1 + 128; - to[j++] = p2 + 128; - } - } - } - else - { - error ("invalid code specification: \"%s\"", code); - return; - } - - if (j >= BUFSIZ) - { - error ("output buffer overflow at do_convert()"); - ustrcpy (to, from); - } - else - to[j] = '\0'; -#endif /* HAVE_ICONV */ -} - -static int -do_check_and_conv (unsigned char *to, unsigned char *from) -{ - static unsigned char tmp[BUFSIZ]; - int p1, p2, i, j; - int kanji = TRUE; - - switch (DetectKanjiCode (from)) - { - case NEW: - debug ("Kanji code is New JIS."); - do_convert (tmp, from, NEWJISSTR); - break; - case OLD: - debug ("Kanji code is Old JIS."); - do_convert (tmp, from, OLDJISSTR); - break; - case ESCI: - debug - ("This string includes Hankaku-Kana (jisx0201) escape sequence [ESC] + ( + I."); - do_convert (tmp, from, NEWJISSTR); - break; - case NEC: - debug ("Kanji code is NEC Kanji."); - error ("cannot convert NEC Kanji."); - ustrcpy (tmp, from); - kanji = FALSE; - break; - case EUC: - debug ("Kanji code is EUC."); - ustrcpy (tmp, from); - break; - case SJIS: - debug ("Kanji code is SJIS."); - do_convert (tmp, from, SJISSTR); - break; - case EUCORSJIS: - debug ("Kanji code is EUC or SJIS."); - ustrcpy (tmp, from); - kanji = FALSE; - break; - case ASCII: - debug ("This is ASCII string."); - ustrcpy (tmp, from); - kanji = FALSE; - break; - default: - debug ("This string includes unknown code."); - ustrcpy (tmp, from); - kanji = FALSE; - break; - } - - /* Hankaku Kana ---> Zenkaku Kana */ - if (kanji) - { - j = 0; - for (i = 0; tmp[i] != '\0' && j < BUFSIZ; i++) - { - if (tmp[i] == SS2) - { - p1 = tmp[++i]; - if (tmp[i + 1] == SS2) - { - p2 = tmp[i + 2]; - if (p2 == 222 || p2 == 223) - i += 2; - else - p2 = 0; - } - else - p2 = 0; - han2zen (&p1, &p2); - SJIStoJIS (&p1, &p2); - to[j++] = p1 + 128; - to[j++] = p2 + 128; - } - else - to[j++] = tmp[i]; - } - - if (j >= BUFSIZ) - { - error ("output buffer overflow at Hankaku --> Zenkaku"); - ustrcpy (to, tmp); - } - else - to[j] = '\0'; - } - else - ustrcpy (to, tmp); - - return kanji; -} - -int -any2eucjp (unsigned char *dest, unsigned char *src, unsigned int dest_max) -{ - static unsigned char tmp_dest[BUFSIZ]; - int ret; - - if (strlen ((const char *) src) >= BUFSIZ) - { - error ("input string too large"); - return -1; - } - if (dest_max > BUFSIZ) - { - error - ("invalid maximum size of destination\nit should be less than %d.", - BUFSIZ); - return -1; - } - ret = do_check_and_conv (tmp_dest, src); - if (strlen ((const char *) tmp_dest) >= dest_max) - { - error ("output buffer overflow"); - ustrcpy (dest, src); - return -1; - } - ustrcpy (dest, tmp_dest); - return ret; -} - -#if 0 -unsigned int -strwidth (unsigned char *s) -{ - unsigned char *t; - unsigned int i; - - t = (unsigned char *) gdMalloc (BUFSIZ); - any2eucjp (t, s, BUFSIZ); - i = strlen (t); - gdFree (t); - return i; -} - -#ifdef DEBUG -int -main () -{ - unsigned char input[BUFSIZ]; - unsigned char *output; - unsigned char *str; - int c, i = 0; - - while ((c = fgetc (stdin)) != '\n' && i < BUFSIZ) - input[i++] = c; - input[i] = '\0'; - - printf ("input : %d bytes\n", strlen ((const char *) input)); - printf ("output: %d bytes\n", strwidth (input)); - - output = (unsigned char *) gdMalloc (BUFSIZ); - any2eucjp (output, input, BUFSIZ); - str = output; - while (*str != '\0') - putchar (*(str++)); - putchar ('\n'); - gdFree (output); - - return 0; -} -#endif -#endif diff --git a/collects/plot/src/all/gdtables.c b/collects/plot/src/all/gdtables.c deleted file mode 100644 index 71d618e372..0000000000 --- a/collects/plot/src/all/gdtables.c +++ /dev/null @@ -1,726 +0,0 @@ - -int gdCosT[] = { - 1024, - 1023, - 1023, - 1022, - 1021, - 1020, - 1018, - 1016, - 1014, - 1011, - 1008, - 1005, - 1001, - 997, - 993, - 989, - 984, - 979, - 973, - 968, - 962, - 955, - 949, - 942, - 935, - 928, - 920, - 912, - 904, - 895, - 886, - 877, - 868, - 858, - 848, - 838, - 828, - 817, - 806, - 795, - 784, - 772, - 760, - 748, - 736, - 724, - 711, - 698, - 685, - 671, - 658, - 644, - 630, - 616, - 601, - 587, - 572, - 557, - 542, - 527, - 512, - 496, - 480, - 464, - 448, - 432, - 416, - 400, - 383, - 366, - 350, - 333, - 316, - 299, - 282, - 265, - 247, - 230, - 212, - 195, - 177, - 160, - 142, - 124, - 107, - 89, - 71, - 53, - 35, - 17, - 0, - -17, - -35, - -53, - -71, - -89, - -107, - -124, - -142, - -160, - -177, - -195, - -212, - -230, - -247, - -265, - -282, - -299, - -316, - -333, - -350, - -366, - -383, - -400, - -416, - -432, - -448, - -464, - -480, - -496, - -512, - -527, - -542, - -557, - -572, - -587, - -601, - -616, - -630, - -644, - -658, - -671, - -685, - -698, - -711, - -724, - -736, - -748, - -760, - -772, - -784, - -795, - -806, - -817, - -828, - -838, - -848, - -858, - -868, - -877, - -886, - -895, - -904, - -912, - -920, - -928, - -935, - -942, - -949, - -955, - -962, - -968, - -973, - -979, - -984, - -989, - -993, - -997, - -1001, - -1005, - -1008, - -1011, - -1014, - -1016, - -1018, - -1020, - -1021, - -1022, - -1023, - -1023, - -1024, - -1023, - -1023, - -1022, - -1021, - -1020, - -1018, - -1016, - -1014, - -1011, - -1008, - -1005, - -1001, - -997, - -993, - -989, - -984, - -979, - -973, - -968, - -962, - -955, - -949, - -942, - -935, - -928, - -920, - -912, - -904, - -895, - -886, - -877, - -868, - -858, - -848, - -838, - -828, - -817, - -806, - -795, - -784, - -772, - -760, - -748, - -736, - -724, - -711, - -698, - -685, - -671, - -658, - -644, - -630, - -616, - -601, - -587, - -572, - -557, - -542, - -527, - -512, - -496, - -480, - -464, - -448, - -432, - -416, - -400, - -383, - -366, - -350, - -333, - -316, - -299, - -282, - -265, - -247, - -230, - -212, - -195, - -177, - -160, - -142, - -124, - -107, - -89, - -71, - -53, - -35, - -17, - 0, - 17, - 35, - 53, - 71, - 89, - 107, - 124, - 142, - 160, - 177, - 195, - 212, - 230, - 247, - 265, - 282, - 299, - 316, - 333, - 350, - 366, - 383, - 400, - 416, - 432, - 448, - 464, - 480, - 496, - 512, - 527, - 542, - 557, - 572, - 587, - 601, - 616, - 630, - 644, - 658, - 671, - 685, - 698, - 711, - 724, - 736, - 748, - 760, - 772, - 784, - 795, - 806, - 817, - 828, - 838, - 848, - 858, - 868, - 877, - 886, - 895, - 904, - 912, - 920, - 928, - 935, - 942, - 949, - 955, - 962, - 968, - 973, - 979, - 984, - 989, - 993, - 997, - 1001, - 1005, - 1008, - 1011, - 1014, - 1016, - 1018, - 1020, - 1021, - 1022, - 1023, - 1023 -}; - -int gdSinT[] = { - 0, - 17, - 35, - 53, - 71, - 89, - 107, - 124, - 142, - 160, - 177, - 195, - 212, - 230, - 247, - 265, - 282, - 299, - 316, - 333, - 350, - 366, - 383, - 400, - 416, - 432, - 448, - 464, - 480, - 496, - 512, - 527, - 542, - 557, - 572, - 587, - 601, - 616, - 630, - 644, - 658, - 671, - 685, - 698, - 711, - 724, - 736, - 748, - 760, - 772, - 784, - 795, - 806, - 817, - 828, - 838, - 848, - 858, - 868, - 877, - 886, - 895, - 904, - 912, - 920, - 928, - 935, - 942, - 949, - 955, - 962, - 968, - 973, - 979, - 984, - 989, - 993, - 997, - 1001, - 1005, - 1008, - 1011, - 1014, - 1016, - 1018, - 1020, - 1021, - 1022, - 1023, - 1023, - 1024, - 1023, - 1023, - 1022, - 1021, - 1020, - 1018, - 1016, - 1014, - 1011, - 1008, - 1005, - 1001, - 997, - 993, - 989, - 984, - 979, - 973, - 968, - 962, - 955, - 949, - 942, - 935, - 928, - 920, - 912, - 904, - 895, - 886, - 877, - 868, - 858, - 848, - 838, - 828, - 817, - 806, - 795, - 784, - 772, - 760, - 748, - 736, - 724, - 711, - 698, - 685, - 671, - 658, - 644, - 630, - 616, - 601, - 587, - 572, - 557, - 542, - 527, - 512, - 496, - 480, - 464, - 448, - 432, - 416, - 400, - 383, - 366, - 350, - 333, - 316, - 299, - 282, - 265, - 247, - 230, - 212, - 195, - 177, - 160, - 142, - 124, - 107, - 89, - 71, - 53, - 35, - 17, - 0, - -17, - -35, - -53, - -71, - -89, - -107, - -124, - -142, - -160, - -177, - -195, - -212, - -230, - -247, - -265, - -282, - -299, - -316, - -333, - -350, - -366, - -383, - -400, - -416, - -432, - -448, - -464, - -480, - -496, - -512, - -527, - -542, - -557, - -572, - -587, - -601, - -616, - -630, - -644, - -658, - -671, - -685, - -698, - -711, - -724, - -736, - -748, - -760, - -772, - -784, - -795, - -806, - -817, - -828, - -838, - -848, - -858, - -868, - -877, - -886, - -895, - -904, - -912, - -920, - -928, - -935, - -942, - -949, - -955, - -962, - -968, - -973, - -979, - -984, - -989, - -993, - -997, - -1001, - -1005, - -1008, - -1011, - -1014, - -1016, - -1018, - -1020, - -1021, - -1022, - -1023, - -1023, - -1024, - -1023, - -1023, - -1022, - -1021, - -1020, - -1018, - -1016, - -1014, - -1011, - -1008, - -1005, - -1001, - -997, - -993, - -989, - -984, - -979, - -973, - -968, - -962, - -955, - -949, - -942, - -935, - -928, - -920, - -912, - -904, - -895, - -886, - -877, - -868, - -858, - -848, - -838, - -828, - -817, - -806, - -795, - -784, - -772, - -760, - -748, - -736, - -724, - -711, - -698, - -685, - -671, - -658, - -644, - -630, - -616, - -601, - -587, - -572, - -557, - -542, - -527, - -512, - -496, - -480, - -464, - -448, - -432, - -416, - -400, - -383, - -366, - -350, - -333, - -316, - -299, - -282, - -265, - -247, - -230, - -212, - -195, - -177, - -160, - -142, - -124, - -107, - -89, - -71, - -53, - -35, - -17 -}; diff --git a/collects/plot/src/all/gdxpm.c b/collects/plot/src/all/gdxpm.c deleted file mode 100644 index 42406b80c6..0000000000 --- a/collects/plot/src/all/gdxpm.c +++ /dev/null @@ -1,154 +0,0 @@ - -/* - add ability to load xpm files to gd, requires the xpm - library. - Caolan.McNamara@ul.ie - http://www.csn.ul.ie/~caolan - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include "gd.h" -#include "gdhelpers.h" - -#ifndef HAVE_LIBXPM -gdImagePtr -gdImageCreateFromXpm (char *filename) -{ - fprintf (stderr, "libgd was not built with xpm support\n"); - return (NULL); -} - -#else - -#include - -gdImagePtr -gdImageCreateFromXpm (char *filename) -{ - XpmInfo info; - XpmImage image; - int i, j, k, number; - char buf[5]; - gdImagePtr im = 0; - char *apixel; - int *pointer; - int red = 0, green = 0, blue = 0; - int *colors; - int ret; - - ret = XpmReadFileToXpmImage (filename, &image, &info); - if (ret != XpmSuccess) - return 0; - - if (!(im = gdImageCreate (image.width, image.height))) - return 0; - - number = image.ncolors; - colors = (int *) gdMalloc (sizeof (int) * number); - if (colors == NULL) - return (0); - for (i = 0; i < number; i++) - { - switch (strlen (image.colorTable[i].c_color)) - { - case 4: - buf[1] = '\0'; - buf[0] = image.colorTable[i].c_color[1]; - red = strtol (buf, NULL, 16); - - buf[0] = image.colorTable[i].c_color[3]; - green = strtol (buf, NULL, 16); - - buf[0] = image.colorTable[i].c_color[5]; - blue = strtol (buf, NULL, 16); - break; - case 7: - buf[2] = '\0'; - buf[0] = image.colorTable[i].c_color[1]; - buf[1] = image.colorTable[i].c_color[2]; - red = strtol (buf, NULL, 16); - - buf[0] = image.colorTable[i].c_color[3]; - buf[1] = image.colorTable[i].c_color[4]; - green = strtol (buf, NULL, 16); - - buf[0] = image.colorTable[i].c_color[5]; - buf[1] = image.colorTable[i].c_color[6]; - blue = strtol (buf, NULL, 16); - break; - case 10: - buf[3] = '\0'; - buf[0] = image.colorTable[i].c_color[1]; - buf[1] = image.colorTable[i].c_color[2]; - buf[2] = image.colorTable[i].c_color[3]; - red = strtol (buf, NULL, 16); - red /= 64; - - buf[0] = image.colorTable[i].c_color[4]; - buf[1] = image.colorTable[i].c_color[5]; - buf[2] = image.colorTable[i].c_color[6]; - green = strtol (buf, NULL, 16); - green /= 64; - - buf[0] = image.colorTable[i].c_color[7]; - buf[1] = image.colorTable[i].c_color[8]; - buf[2] = image.colorTable[i].c_color[9]; - blue = strtol (buf, NULL, 16); - blue /= 64; - break; - case 13: - buf[4] = '\0'; - buf[0] = image.colorTable[i].c_color[1]; - buf[1] = image.colorTable[i].c_color[2]; - buf[2] = image.colorTable[i].c_color[3]; - buf[3] = image.colorTable[i].c_color[4]; - red = strtol (buf, NULL, 16); - red /= 256; - - buf[0] = image.colorTable[i].c_color[5]; - buf[1] = image.colorTable[i].c_color[6]; - buf[2] = image.colorTable[i].c_color[7]; - buf[3] = image.colorTable[i].c_color[8]; - green = strtol (buf, NULL, 16); - green /= 256; - - buf[0] = image.colorTable[i].c_color[9]; - buf[1] = image.colorTable[i].c_color[10]; - buf[2] = image.colorTable[i].c_color[11]; - buf[3] = image.colorTable[i].c_color[12]; - blue = strtol (buf, NULL, 16); - blue /= 256; - break; - } - - - colors[i] = gdImageColorResolve (im, red, green, blue); - if (colors[i] == -1) - fprintf (stderr, "ARRRGH\n"); - } - - apixel = (char *) gdMalloc (image.cpp + 1); - if (apixel == NULL) - return (0); - apixel[image.cpp] = '\0'; - - pointer = (int *) image.data; - for (i = 0; i < image.height; i++) - { - for (j = 0; j < image.width; j++) - { - k = *pointer++; - gdImageSetPixel (im, j, i, colors[k]); - } - } - gdFree (apixel); - gdFree (colors); - return (im); -} -#endif /* HAVE_LIBXPM */ diff --git a/collects/plot/src/all/gzio.c b/collects/plot/src/all/gzio.c deleted file mode 100644 index e02b59793c..0000000000 --- a/collects/plot/src/all/gzio.c +++ /dev/null @@ -1,875 +0,0 @@ -/* gzio.c -- IO on .gz files - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - * - * Compile this file with -DNO_DEFLATE to avoid the compression code. - */ - -/* @(#) $Id: gzio.c,v 1.1 2004/03/01 20:54:49 cozmic Exp $ */ - -#include - -#include "zutil.h" - -struct internal_state {int dummy;}; /* for buggy compilers */ - -#ifndef Z_BUFSIZE -# ifdef MAXSEG_64K -# define Z_BUFSIZE 4096 /* minimize memory usage for 16-bit DOS */ -# else -# define Z_BUFSIZE 16384 -# endif -#endif -#ifndef Z_PRINTF_BUFSIZE -# define Z_PRINTF_BUFSIZE 4096 -#endif - -#define ALLOC(size) malloc(size) -#define TRYFREE(p) {if (p) free(p);} - -static int gz_magic[2] = {0x1f, 0x8b}; /* gzip magic header */ - -/* gzip flag byte */ -#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */ -#define HEAD_CRC 0x02 /* bit 1 set: header CRC present */ -#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ -#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ -#define COMMENT 0x10 /* bit 4 set: file comment present */ -#define RESERVED 0xE0 /* bits 5..7: reserved */ - -typedef struct gz_stream { - z_stream stream; - int z_err; /* error code for last stream operation */ - int z_eof; /* set if end of input file */ - FILE *file; /* .gz file */ - Byte *inbuf; /* input buffer */ - Byte *outbuf; /* output buffer */ - uLong crc; /* crc32 of uncompressed data */ - char *msg; /* error message */ - char *path; /* path name for debugging only */ - int transparent; /* 1 if input file is not a .gz file */ - char mode; /* 'w' or 'r' */ - long startpos; /* start of compressed data in file (header skipped) */ -} gz_stream; - - -local gzFile gz_open OF((const char *path, const char *mode, int fd)); -local int do_flush OF((gzFile file, int flush)); -local int get_byte OF((gz_stream *s)); -local void check_header OF((gz_stream *s)); -local int destroy OF((gz_stream *s)); -local void putLong OF((FILE *file, uLong x)); -local uLong getLong OF((gz_stream *s)); - -/* =========================================================================== - Opens a gzip (.gz) file for reading or writing. The mode parameter - is as in fopen ("rb" or "wb"). The file is given either by file descriptor - or path name (if fd == -1). - gz_open return NULL if the file could not be opened or if there was - insufficient memory to allocate the (de)compression state; errno - can be checked to distinguish the two cases (if errno is zero, the - zlib error is Z_MEM_ERROR). -*/ -local gzFile gz_open (path, mode, fd) - const char *path; - const char *mode; - int fd; -{ - int err; - int level = Z_DEFAULT_COMPRESSION; /* compression level */ - int strategy = Z_DEFAULT_STRATEGY; /* compression strategy */ - char *p = (char*)mode; - gz_stream *s; - char fmode[80]; /* copy of mode, without the compression level */ - char *m = fmode; - - if (!path || !mode) return Z_NULL; - - s = (gz_stream *)ALLOC(sizeof(gz_stream)); - if (!s) return Z_NULL; - - s->stream.zalloc = (alloc_func)0; - s->stream.zfree = (free_func)0; - s->stream.opaque = (voidpf)0; - s->stream.next_in = s->inbuf = Z_NULL; - s->stream.next_out = s->outbuf = Z_NULL; - s->stream.avail_in = s->stream.avail_out = 0; - s->file = NULL; - s->z_err = Z_OK; - s->z_eof = 0; - s->crc = crc32(0L, Z_NULL, 0); - s->msg = NULL; - s->transparent = 0; - - s->path = (char*)ALLOC(strlen(path)+1); - if (s->path == NULL) { - return destroy(s), (gzFile)Z_NULL; - } - strcpy(s->path, path); /* do this early for debugging */ - - s->mode = '\0'; - do { - if (*p == 'r') s->mode = 'r'; - if (*p == 'w' || *p == 'a') s->mode = 'w'; - if (*p >= '0' && *p <= '9') { - level = *p - '0'; - } else if (*p == 'f') { - strategy = Z_FILTERED; - } else if (*p == 'h') { - strategy = Z_HUFFMAN_ONLY; - } else { - *m++ = *p; /* copy the mode */ - } - } while (*p++ && m != fmode + sizeof(fmode)); - if (s->mode == '\0') return destroy(s), (gzFile)Z_NULL; - - if (s->mode == 'w') { -#ifdef NO_DEFLATE - err = Z_STREAM_ERROR; -#else - err = deflateInit2(&(s->stream), level, - Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, strategy); - /* windowBits is passed < 0 to suppress zlib header */ - - s->stream.next_out = s->outbuf = (Byte*)ALLOC(Z_BUFSIZE); -#endif - if (err != Z_OK || s->outbuf == Z_NULL) { - return destroy(s), (gzFile)Z_NULL; - } - } else { - s->stream.next_in = s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); - - err = inflateInit2(&(s->stream), -MAX_WBITS); - /* windowBits is passed < 0 to tell that there is no zlib header. - * Note that in this case inflate *requires* an extra "dummy" byte - * after the compressed stream in order to complete decompression and - * return Z_STREAM_END. Here the gzip CRC32 ensures that 4 bytes are - * present after the compressed stream. - */ - if (err != Z_OK || s->inbuf == Z_NULL) { - return destroy(s), (gzFile)Z_NULL; - } - } - s->stream.avail_out = Z_BUFSIZE; - - errno = 0; - s->file = fd < 0 ? F_OPEN(path, fmode) : (FILE*)fdopen(fd, fmode); - - if (s->file == NULL) { - return destroy(s), (gzFile)Z_NULL; - } - if (s->mode == 'w') { - /* Write a very simple .gz header: - */ - fprintf(s->file, "%c%c%c%c%c%c%c%c%c%c", gz_magic[0], gz_magic[1], - Z_DEFLATED, 0 /*flags*/, 0,0,0,0 /*time*/, 0 /*xflags*/, OS_CODE); - s->startpos = 10L; - /* We use 10L instead of ftell(s->file) to because ftell causes an - * fflush on some systems. This version of the library doesn't use - * startpos anyway in write mode, so this initialization is not - * necessary. - */ - } else { - check_header(s); /* skip the .gz header */ - s->startpos = (ftell(s->file) - s->stream.avail_in); - } - - return (gzFile)s; -} - -/* =========================================================================== - Opens a gzip (.gz) file for reading or writing. -*/ -gzFile ZEXPORT gzopen (path, mode) - const char *path; - const char *mode; -{ - return gz_open (path, mode, -1); -} - -/* =========================================================================== - Associate a gzFile with the file descriptor fd. fd is not dup'ed here - to mimic the behavio(u)r of fdopen. -*/ -gzFile ZEXPORT gzdopen (fd, mode) - int fd; - const char *mode; -{ - char name[20]; - - if (fd < 0) return (gzFile)Z_NULL; - sprintf(name, "", fd); /* for debugging */ - - return gz_open (name, mode, fd); -} - -/* =========================================================================== - * Update the compression level and strategy - */ -int ZEXPORT gzsetparams (file, level, strategy) - gzFile file; - int level; - int strategy; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR; - - /* Make room to allow flushing */ - if (s->stream.avail_out == 0) { - - s->stream.next_out = s->outbuf; - if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) { - s->z_err = Z_ERRNO; - } - s->stream.avail_out = Z_BUFSIZE; - } - - return deflateParams (&(s->stream), level, strategy); -} - -/* =========================================================================== - Read a byte from a gz_stream; update next_in and avail_in. Return EOF - for end of file. - IN assertion: the stream s has been sucessfully opened for reading. -*/ -local int get_byte(s) - gz_stream *s; -{ - if (s->z_eof) return EOF; - if (s->stream.avail_in == 0) { - errno = 0; - s->stream.avail_in = fread(s->inbuf, 1, Z_BUFSIZE, s->file); - if (s->stream.avail_in == 0) { - s->z_eof = 1; - if (ferror(s->file)) s->z_err = Z_ERRNO; - return EOF; - } - s->stream.next_in = s->inbuf; - } - s->stream.avail_in--; - return *(s->stream.next_in)++; -} - -/* =========================================================================== - Check the gzip header of a gz_stream opened for reading. Set the stream - mode to transparent if the gzip magic header is not present; set s->err - to Z_DATA_ERROR if the magic header is present but the rest of the header - is incorrect. - IN assertion: the stream s has already been created sucessfully; - s->stream.avail_in is zero for the first time, but may be non-zero - for concatenated .gz files. -*/ -local void check_header(s) - gz_stream *s; -{ - int method; /* method byte */ - int flags; /* flags byte */ - uInt len; - int c; - - /* Check the gzip magic header */ - for (len = 0; len < 2; len++) { - c = get_byte(s); - if (c != gz_magic[len]) { - if (len != 0) s->stream.avail_in++, s->stream.next_in--; - if (c != EOF) { - s->stream.avail_in++, s->stream.next_in--; - s->transparent = 1; - } - s->z_err = s->stream.avail_in != 0 ? Z_OK : Z_STREAM_END; - return; - } - } - method = get_byte(s); - flags = get_byte(s); - if (method != Z_DEFLATED || (flags & RESERVED) != 0) { - s->z_err = Z_DATA_ERROR; - return; - } - - /* Discard time, xflags and OS code: */ - for (len = 0; len < 6; len++) (void)get_byte(s); - - if ((flags & EXTRA_FIELD) != 0) { /* skip the extra field */ - len = (uInt)get_byte(s); - len += ((uInt)get_byte(s))<<8; - /* len is garbage if EOF but the loop below will quit anyway */ - while (len-- != 0 && get_byte(s) != EOF) ; - } - if ((flags & ORIG_NAME) != 0) { /* skip the original file name */ - while ((c = get_byte(s)) != 0 && c != EOF) ; - } - if ((flags & COMMENT) != 0) { /* skip the .gz file comment */ - while ((c = get_byte(s)) != 0 && c != EOF) ; - } - if ((flags & HEAD_CRC) != 0) { /* skip the header crc */ - for (len = 0; len < 2; len++) (void)get_byte(s); - } - s->z_err = s->z_eof ? Z_DATA_ERROR : Z_OK; -} - - /* =========================================================================== - * Cleanup then free the given gz_stream. Return a zlib error code. - Try freeing in the reverse order of allocations. - */ -local int destroy (s) - gz_stream *s; -{ - int err = Z_OK; - - if (!s) return Z_STREAM_ERROR; - - TRYFREE(s->msg); - - if (s->stream.state != NULL) { - if (s->mode == 'w') { -#ifdef NO_DEFLATE - err = Z_STREAM_ERROR; -#else - err = deflateEnd(&(s->stream)); -#endif - } else if (s->mode == 'r') { - err = inflateEnd(&(s->stream)); - } - } - if (s->file != NULL && fclose(s->file)) { -#ifdef ESPIPE - if (errno != ESPIPE) /* fclose is broken for pipes in HP/UX */ -#endif - err = Z_ERRNO; - } - if (s->z_err < 0) err = s->z_err; - - TRYFREE(s->inbuf); - TRYFREE(s->outbuf); - TRYFREE(s->path); - TRYFREE(s); - return err; -} - -/* =========================================================================== - Reads the given number of uncompressed bytes from the compressed file. - gzread returns the number of bytes actually read (0 for end of file). -*/ -int ZEXPORT gzread (file, buf, len) - gzFile file; - voidp buf; - unsigned len; -{ - gz_stream *s = (gz_stream*)file; - Bytef *start = (Bytef*)buf; /* starting point for crc computation */ - Byte *next_out; /* == stream.next_out but not forced far (for MSDOS) */ - - if (s == NULL || s->mode != 'r') return Z_STREAM_ERROR; - - if (s->z_err == Z_DATA_ERROR || s->z_err == Z_ERRNO) return -1; - if (s->z_err == Z_STREAM_END) return 0; /* EOF */ - - next_out = (Byte*)buf; - s->stream.next_out = (Bytef*)buf; - s->stream.avail_out = len; - - while (s->stream.avail_out != 0) { - - if (s->transparent) { - /* Copy first the lookahead bytes: */ - uInt n = s->stream.avail_in; - if (n > s->stream.avail_out) n = s->stream.avail_out; - if (n > 0) { - zmemcpy(s->stream.next_out, s->stream.next_in, n); - next_out += n; - s->stream.next_out = next_out; - s->stream.next_in += n; - s->stream.avail_out -= n; - s->stream.avail_in -= n; - } - if (s->stream.avail_out > 0) { - s->stream.avail_out -= fread(next_out, 1, s->stream.avail_out, - s->file); - } - len -= s->stream.avail_out; - s->stream.total_in += (uLong)len; - s->stream.total_out += (uLong)len; - if (len == 0) s->z_eof = 1; - return (int)len; - } - if (s->stream.avail_in == 0 && !s->z_eof) { - - errno = 0; - s->stream.avail_in = fread(s->inbuf, 1, Z_BUFSIZE, s->file); - if (s->stream.avail_in == 0) { - s->z_eof = 1; - if (ferror(s->file)) { - s->z_err = Z_ERRNO; - break; - } - } - s->stream.next_in = s->inbuf; - } - s->z_err = inflate(&(s->stream), Z_NO_FLUSH); - - if (s->z_err == Z_STREAM_END) { - /* Check CRC and original size */ - s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start)); - start = s->stream.next_out; - - if (getLong(s) != s->crc) { - s->z_err = Z_DATA_ERROR; - } else { - (void)getLong(s); - /* The uncompressed length returned by above getlong() may - * be different from s->stream.total_out) in case of - * concatenated .gz files. Check for such files: - */ - check_header(s); - if (s->z_err == Z_OK) { - uLong total_in = s->stream.total_in; - uLong total_out = s->stream.total_out; - - inflateReset(&(s->stream)); - s->stream.total_in = total_in; - s->stream.total_out = total_out; - s->crc = crc32(0L, Z_NULL, 0); - } - } - } - if (s->z_err != Z_OK || s->z_eof) break; - } - s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start)); - - return (int)(len - s->stream.avail_out); -} - - -/* =========================================================================== - Reads one byte from the compressed file. gzgetc returns this byte - or -1 in case of end of file or error. -*/ -int ZEXPORT gzgetc(file) - gzFile file; -{ - unsigned char c; - - return gzread(file, &c, 1) == 1 ? c : -1; -} - - -/* =========================================================================== - Reads bytes from the compressed file until len-1 characters are - read, or a newline character is read and transferred to buf, or an - end-of-file condition is encountered. The string is then terminated - with a null character. - gzgets returns buf, or Z_NULL in case of error. - - The current implementation is not optimized at all. -*/ -char * ZEXPORT gzgets(file, buf, len) - gzFile file; - char *buf; - int len; -{ - char *b = buf; - if (buf == Z_NULL || len <= 0) return Z_NULL; - - while (--len > 0 && gzread(file, buf, 1) == 1 && *buf++ != '\n') ; - *buf = '\0'; - return b == buf && len > 0 ? Z_NULL : b; -} - - -#ifndef NO_DEFLATE -/* =========================================================================== - Writes the given number of uncompressed bytes into the compressed file. - gzwrite returns the number of bytes actually written (0 in case of error). -*/ -int ZEXPORT gzwrite (file, buf, len) - gzFile file; - const voidp buf; - unsigned len; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR; - - s->stream.next_in = (Bytef*)buf; - s->stream.avail_in = len; - - while (s->stream.avail_in != 0) { - - if (s->stream.avail_out == 0) { - - s->stream.next_out = s->outbuf; - if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) { - s->z_err = Z_ERRNO; - break; - } - s->stream.avail_out = Z_BUFSIZE; - } - s->z_err = deflate(&(s->stream), Z_NO_FLUSH); - if (s->z_err != Z_OK) break; - } - s->crc = crc32(s->crc, (const Bytef *)buf, len); - - return (int)(len - s->stream.avail_in); -} - -/* =========================================================================== - Converts, formats, and writes the args to the compressed file under - control of the format string, as in fprintf. gzprintf returns the number of - uncompressed bytes actually written (0 in case of error). -*/ -#ifdef STDC -#include - -int ZEXPORTVA gzprintf (gzFile file, const char *format, /* args */ ...) -{ - char buf[Z_PRINTF_BUFSIZE]; - va_list va; - int len; - - va_start(va, format); -#ifdef HAS_vsnprintf - (void)vsnprintf(buf, sizeof(buf), format, va); -#else - (void)vsprintf(buf, format, va); -#endif - va_end(va); - len = strlen(buf); /* some *sprintf don't return the nb of bytes written */ - if (len <= 0) return 0; - - return gzwrite(file, buf, (unsigned)len); -} -#else /* not ANSI C */ - -int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, - a11, a12, a13, a14, a15, a16, a17, a18, a19, a20) - gzFile file; - const char *format; - int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, - a11, a12, a13, a14, a15, a16, a17, a18, a19, a20; -{ - char buf[Z_PRINTF_BUFSIZE]; - int len; - -#ifdef HAS_snprintf - snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); -#else - sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); -#endif - len = strlen(buf); /* old sprintf doesn't return the nb of bytes written */ - if (len <= 0) return 0; - - return gzwrite(file, buf, len); -} -#endif - -/* =========================================================================== - Writes c, converted to an unsigned char, into the compressed file. - gzputc returns the value that was written, or -1 in case of error. -*/ -int ZEXPORT gzputc(file, c) - gzFile file; - int c; -{ - unsigned char cc = (unsigned char) c; /* required for big endian systems */ - - return gzwrite(file, &cc, 1) == 1 ? (int)cc : -1; -} - - -/* =========================================================================== - Writes the given null-terminated string to the compressed file, excluding - the terminating null character. - gzputs returns the number of characters written, or -1 in case of error. -*/ -int ZEXPORT gzputs(file, s) - gzFile file; - const char *s; -{ - return gzwrite(file, (char*)s, (unsigned)strlen(s)); -} - - -/* =========================================================================== - Flushes all pending output into the compressed file. The parameter - flush is as in the deflate() function. -*/ -local int do_flush (file, flush) - gzFile file; - int flush; -{ - uInt len; - int done = 0; - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR; - - s->stream.avail_in = 0; /* should be zero already anyway */ - - for (;;) { - len = Z_BUFSIZE - s->stream.avail_out; - - if (len != 0) { - if ((uInt)fwrite(s->outbuf, 1, len, s->file) != len) { - s->z_err = Z_ERRNO; - return Z_ERRNO; - } - s->stream.next_out = s->outbuf; - s->stream.avail_out = Z_BUFSIZE; - } - if (done) break; - s->z_err = deflate(&(s->stream), flush); - - /* Ignore the second of two consecutive flushes: */ - if (len == 0 && s->z_err == Z_BUF_ERROR) s->z_err = Z_OK; - - /* deflate has finished flushing only when it hasn't used up - * all the available space in the output buffer: - */ - done = (s->stream.avail_out != 0 || s->z_err == Z_STREAM_END); - - if (s->z_err != Z_OK && s->z_err != Z_STREAM_END) break; - } - return s->z_err == Z_STREAM_END ? Z_OK : s->z_err; -} - -int ZEXPORT gzflush (file, flush) - gzFile file; - int flush; -{ - gz_stream *s = (gz_stream*)file; - int err = do_flush (file, flush); - - if (err) return err; - fflush(s->file); - return s->z_err == Z_STREAM_END ? Z_OK : s->z_err; -} -#endif /* NO_DEFLATE */ - -/* =========================================================================== - Sets the starting position for the next gzread or gzwrite on the given - compressed file. The offset represents a number of bytes in the - gzseek returns the resulting offset location as measured in bytes from - the beginning of the uncompressed stream, or -1 in case of error. - SEEK_END is not implemented, returns error. - In this version of the library, gzseek can be extremely slow. -*/ -z_off_t ZEXPORT gzseek (file, offset, whence) - gzFile file; - z_off_t offset; - int whence; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || whence == SEEK_END || - s->z_err == Z_ERRNO || s->z_err == Z_DATA_ERROR) { - return -1L; - } - - if (s->mode == 'w') { -#ifdef NO_DEFLATE - return -1L; -#else - if (whence == SEEK_SET) { - offset -= s->stream.total_in; - } - if (offset < 0) return -1L; - - /* At this point, offset is the number of zero bytes to write. */ - if (s->inbuf == Z_NULL) { - s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); /* for seeking */ - zmemzero(s->inbuf, Z_BUFSIZE); - } - while (offset > 0) { - uInt size = Z_BUFSIZE; - if (offset < Z_BUFSIZE) size = (uInt)offset; - - size = gzwrite(file, s->inbuf, size); - if (size == 0) return -1L; - - offset -= size; - } - return (z_off_t)s->stream.total_in; -#endif - } - /* Rest of function is for reading only */ - - /* compute absolute position */ - if (whence == SEEK_CUR) { - offset += s->stream.total_out; - } - if (offset < 0) return -1L; - - if (s->transparent) { - /* map to fseek */ - s->stream.avail_in = 0; - s->stream.next_in = s->inbuf; - if (fseek(s->file, offset, SEEK_SET) < 0) return -1L; - - s->stream.total_in = s->stream.total_out = (uLong)offset; - return offset; - } - - /* For a negative seek, rewind and use positive seek */ - if ((uLong)offset >= s->stream.total_out) { - offset -= s->stream.total_out; - } else if (gzrewind(file) < 0) { - return -1L; - } - /* offset is now the number of bytes to skip. */ - - if (offset != 0 && s->outbuf == Z_NULL) { - s->outbuf = (Byte*)ALLOC(Z_BUFSIZE); - } - while (offset > 0) { - int size = Z_BUFSIZE; - if (offset < Z_BUFSIZE) size = (int)offset; - - size = gzread(file, s->outbuf, (uInt)size); - if (size <= 0) return -1L; - offset -= size; - } - return (z_off_t)s->stream.total_out; -} - -/* =========================================================================== - Rewinds input file. -*/ -int ZEXPORT gzrewind (file) - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'r') return -1; - - s->z_err = Z_OK; - s->z_eof = 0; - s->stream.avail_in = 0; - s->stream.next_in = s->inbuf; - s->crc = crc32(0L, Z_NULL, 0); - - if (s->startpos == 0) { /* not a compressed file */ - rewind(s->file); - return 0; - } - - (void) inflateReset(&s->stream); - return fseek(s->file, s->startpos, SEEK_SET); -} - -/* =========================================================================== - Returns the starting position for the next gzread or gzwrite on the - given compressed file. This position represents a number of bytes in the - uncompressed data stream. -*/ -z_off_t ZEXPORT gztell (file) - gzFile file; -{ - return gzseek(file, 0L, SEEK_CUR); -} - -/* =========================================================================== - Returns 1 when EOF has previously been detected reading the given - input stream, otherwise zero. -*/ -int ZEXPORT gzeof (file) - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - return (s == NULL || s->mode != 'r') ? 0 : s->z_eof; -} - -/* =========================================================================== - Outputs a long in LSB order to the given file -*/ -local void putLong (file, x) - FILE *file; - uLong x; -{ - int n; - for (n = 0; n < 4; n++) { - fputc((int)(x & 0xff), file); - x >>= 8; - } -} - -/* =========================================================================== - Reads a long in LSB order from the given gz_stream. Sets z_err in case - of error. -*/ -local uLong getLong (s) - gz_stream *s; -{ - uLong x = (uLong)get_byte(s); - int c; - - x += ((uLong)get_byte(s))<<8; - x += ((uLong)get_byte(s))<<16; - c = get_byte(s); - if (c == EOF) s->z_err = Z_DATA_ERROR; - x += ((uLong)c)<<24; - return x; -} - -/* =========================================================================== - Flushes all pending output if necessary, closes the compressed file - and deallocates all the (de)compression state. -*/ -int ZEXPORT gzclose (file) - gzFile file; -{ - int err; - gz_stream *s = (gz_stream*)file; - - if (s == NULL) return Z_STREAM_ERROR; - - if (s->mode == 'w') { -#ifdef NO_DEFLATE - return Z_STREAM_ERROR; -#else - err = do_flush (file, Z_FINISH); - if (err != Z_OK) return destroy((gz_stream*)file); - - putLong (s->file, s->crc); - putLong (s->file, s->stream.total_in); -#endif - } - return destroy((gz_stream*)file); -} - -/* =========================================================================== - Returns the error message for the last error which occured on the - given compressed file. errnum is set to zlib error number. If an - error occured in the file system and not in the compression library, - errnum is set to Z_ERRNO and the application may consult errno - to get the exact error code. -*/ -const char* ZEXPORT gzerror (file, errnum) - gzFile file; - int *errnum; -{ - char *m; - gz_stream *s = (gz_stream*)file; - - if (s == NULL) { - *errnum = Z_STREAM_ERROR; - return (const char*)ERR_MSG(Z_STREAM_ERROR); - } - *errnum = s->z_err; - if (*errnum == Z_OK) return (const char*)""; - - m = (char*)(*errnum == Z_ERRNO ? zstrerror(errno) : s->stream.msg); - - if (m == NULL || *m == '\0') m = (char*)ERR_MSG(s->z_err); - - TRYFREE(s->msg); - s->msg = (char*)ALLOC(strlen(s->path) + strlen(m) + 3); - strcpy(s->msg, s->path); - strcat(s->msg, ": "); - strcat(s->msg, m); - return (const char*)s->msg; -} diff --git a/collects/plot/src/all/infblock.c b/collects/plot/src/all/infblock.c deleted file mode 100644 index dd7a6d40a8..0000000000 --- a/collects/plot/src/all/infblock.c +++ /dev/null @@ -1,403 +0,0 @@ -/* infblock.c -- interpret and process block types to last block - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "infblock.h" -#include "inftrees.h" -#include "infcodes.h" -#include "infutil.h" - -struct inflate_codes_state {int dummy;}; /* for buggy compilers */ - -/* simplify the use of the inflate_huft type with some defines */ -#define exop word.what.Exop -#define bits word.what.Bits - -/* Table for deflate from PKZIP's appnote.txt. */ -local const uInt border[] = { /* Order of the bit length code lengths */ - 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - -/* - Notes beyond the 1.93a appnote.txt: - - 1. Distance pointers never point before the beginning of the output - stream. - 2. Distance pointers can point back across blocks, up to 32k away. - 3. There is an implied maximum of 7 bits for the bit length table and - 15 bits for the actual data. - 4. If only one code exists, then it is encoded using one bit. (Zero - would be more efficient, but perhaps a little confusing.) If two - codes exist, they are coded using one bit each (0 and 1). - 5. There is no way of sending zero distance codes--a dummy must be - sent if there are none. (History: a pre 2.0 version of PKZIP would - store blocks with no distance codes, but this was discovered to be - too harsh a criterion.) Valid only for 1.93a. 2.04c does allow - zero distance codes, which is sent as one code of zero bits in - length. - 6. There are up to 286 literal/length codes. Code 256 represents the - end-of-block. Note however that the static length tree defines - 288 codes just to fill out the Huffman codes. Codes 286 and 287 - cannot be used though, since there is no length base or extra bits - defined for them. Similarily, there are up to 30 distance codes. - However, static trees define 32 codes (all 5 bits) to fill out the - Huffman codes, but the last two had better not show up in the data. - 7. Unzip can check dynamic Huffman blocks for complete code sets. - The exception is that a single code would not be complete (see #4). - 8. The five bits following the block type is really the number of - literal codes sent minus 257. - 9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits - (1+6+6). Therefore, to output three times the length, you output - three codes (1+1+1), whereas to output four times the same length, - you only need two codes (1+3). Hmm. - 10. In the tree reconstruction algorithm, Code = Code + Increment - only if BitLength(i) is not zero. (Pretty obvious.) - 11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19) - 12. Note: length code 284 can represent 227-258, but length code 285 - really is 258. The last length deserves its own, short code - since it gets used a lot in very redundant files. The length - 258 is special since 258 - 3 (the min match length) is 255. - 13. The literal/length and distance code bit lengths are read as a - single stream of lengths. It is possible (and advantageous) for - a repeat code (16, 17, or 18) to go across the boundary between - the two sets of lengths. - */ - - -void inflate_blocks_reset(s, z, c) -inflate_blocks_statef *s; -z_streamp z; -uLongf *c; -{ - if (c != Z_NULL) - *c = s->check; - if (s->mode == BTREE || s->mode == DTREE) - ZFREE(z, s->sub.trees.blens); - if (s->mode == CODES) - inflate_codes_free(s->sub.decode.codes, z); - s->mode = TYPE; - s->bitk = 0; - s->bitb = 0; - s->read = s->write = s->window; - if (s->checkfn != Z_NULL) - z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0); - Tracev((stderr, "inflate: blocks reset\n")); -} - - -inflate_blocks_statef *inflate_blocks_new(z, c, w) -z_streamp z; -check_func c; -uInt w; -{ - inflate_blocks_statef *s; - - if ((s = (inflate_blocks_statef *)ZALLOC - (z,1,sizeof(struct inflate_blocks_state))) == Z_NULL) - return s; - if ((s->hufts = - (inflate_huft *)ZALLOC(z, sizeof(inflate_huft), MANY)) == Z_NULL) - { - ZFREE(z, s); - return Z_NULL; - } - if ((s->window = (Bytef *)ZALLOC(z, 1, w)) == Z_NULL) - { - ZFREE(z, s->hufts); - ZFREE(z, s); - return Z_NULL; - } - s->end = s->window + w; - s->checkfn = c; - s->mode = TYPE; - Tracev((stderr, "inflate: blocks allocated\n")); - inflate_blocks_reset(s, z, Z_NULL); - return s; -} - - -int inflate_blocks(s, z, r) -inflate_blocks_statef *s; -z_streamp z; -int r; -{ - uInt t; /* temporary storage */ - uLong b; /* bit buffer */ - uInt k; /* bits in bit buffer */ - Bytef *p; /* input data pointer */ - uInt n; /* bytes available there */ - Bytef *q; /* output window write pointer */ - uInt m; /* bytes to end of window or read pointer */ - - /* copy input/output information to locals (UPDATE macro restores) */ - LOAD - - /* process input based on current state */ - while (1) switch (s->mode) - { - case TYPE: - NEEDBITS(3) - t = (uInt)b & 7; - s->last = t & 1; - switch (t >> 1) - { - case 0: /* stored */ - Tracev((stderr, "inflate: stored block%s\n", - s->last ? " (last)" : "")); - DUMPBITS(3) - t = k & 7; /* go to byte boundary */ - DUMPBITS(t) - s->mode = LENS; /* get length of stored block */ - break; - case 1: /* fixed */ - Tracev((stderr, "inflate: fixed codes block%s\n", - s->last ? " (last)" : "")); - { - uInt bl, bd; - inflate_huft *tl, *td; - - inflate_trees_fixed(&bl, &bd, &tl, &td, z); - s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z); - if (s->sub.decode.codes == Z_NULL) - { - r = Z_MEM_ERROR; - LEAVE - } - } - DUMPBITS(3) - s->mode = CODES; - break; - case 2: /* dynamic */ - Tracev((stderr, "inflate: dynamic codes block%s\n", - s->last ? " (last)" : "")); - DUMPBITS(3) - s->mode = TABLE; - break; - case 3: /* illegal */ - DUMPBITS(3) - s->mode = BAD; - z->msg = (char*)"invalid block type"; - r = Z_DATA_ERROR; - LEAVE - } - break; - case LENS: - NEEDBITS(32) - if ((((~b) >> 16) & 0xffff) != (b & 0xffff)) - { - s->mode = BAD; - z->msg = (char*)"invalid stored block lengths"; - r = Z_DATA_ERROR; - LEAVE - } - s->sub.left = (uInt)b & 0xffff; - b = k = 0; /* dump bits */ - Tracev((stderr, "inflate: stored length %u\n", s->sub.left)); - s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE); - break; - case STORED: - if (n == 0) - LEAVE - NEEDOUT - t = s->sub.left; - if (t > n) t = n; - if (t > m) t = m; - zmemcpy(q, p, t); - p += t; n -= t; - q += t; m -= t; - if ((s->sub.left -= t) != 0) - break; - Tracev((stderr, "inflate: stored end, %lu total out\n", - z->total_out + (q >= s->read ? q - s->read : - (s->end - s->read) + (q - s->window)))); - s->mode = s->last ? DRY : TYPE; - break; - case TABLE: - NEEDBITS(14) - s->sub.trees.table = t = (uInt)b & 0x3fff; -#ifndef PKZIP_BUG_WORKAROUND - if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29) - { - s->mode = BAD; - z->msg = (char*)"too many length or distance symbols"; - r = Z_DATA_ERROR; - LEAVE - } -#endif - t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f); - if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL) - { - r = Z_MEM_ERROR; - LEAVE - } - DUMPBITS(14) - s->sub.trees.index = 0; - Tracev((stderr, "inflate: table sizes ok\n")); - s->mode = BTREE; - case BTREE: - while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10)) - { - NEEDBITS(3) - s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7; - DUMPBITS(3) - } - while (s->sub.trees.index < 19) - s->sub.trees.blens[border[s->sub.trees.index++]] = 0; - s->sub.trees.bb = 7; - t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb, - &s->sub.trees.tb, s->hufts, z); - if (t != Z_OK) - { - r = t; - if (r == Z_DATA_ERROR) - { - ZFREE(z, s->sub.trees.blens); - s->mode = BAD; - } - LEAVE - } - s->sub.trees.index = 0; - Tracev((stderr, "inflate: bits tree ok\n")); - s->mode = DTREE; - case DTREE: - while (t = s->sub.trees.table, - s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f)) - { - inflate_huft *h; - uInt i, j, c; - - t = s->sub.trees.bb; - NEEDBITS(t) - h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]); - t = h->bits; - c = h->base; - if (c < 16) - { - DUMPBITS(t) - s->sub.trees.blens[s->sub.trees.index++] = c; - } - else /* c == 16..18 */ - { - i = c == 18 ? 7 : c - 14; - j = c == 18 ? 11 : 3; - NEEDBITS(t + i) - DUMPBITS(t) - j += (uInt)b & inflate_mask[i]; - DUMPBITS(i) - i = s->sub.trees.index; - t = s->sub.trees.table; - if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) || - (c == 16 && i < 1)) - { - ZFREE(z, s->sub.trees.blens); - s->mode = BAD; - z->msg = (char*)"invalid bit length repeat"; - r = Z_DATA_ERROR; - LEAVE - } - c = c == 16 ? s->sub.trees.blens[i - 1] : 0; - do { - s->sub.trees.blens[i++] = c; - } while (--j); - s->sub.trees.index = i; - } - } - s->sub.trees.tb = Z_NULL; - { - uInt bl, bd; - inflate_huft *tl, *td; - inflate_codes_statef *c; - - bl = 9; /* must be <= 9 for lookahead assumptions */ - bd = 6; /* must be <= 9 for lookahead assumptions */ - t = s->sub.trees.table; - t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f), - s->sub.trees.blens, &bl, &bd, &tl, &td, - s->hufts, z); - if (t != Z_OK) - { - if (t == (uInt)Z_DATA_ERROR) - { - ZFREE(z, s->sub.trees.blens); - s->mode = BAD; - } - r = t; - LEAVE - } - Tracev((stderr, "inflate: trees ok\n")); - if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL) - { - r = Z_MEM_ERROR; - LEAVE - } - s->sub.decode.codes = c; - } - ZFREE(z, s->sub.trees.blens); - s->mode = CODES; - case CODES: - UPDATE - if ((r = inflate_codes(s, z, r)) != Z_STREAM_END) - return inflate_flush(s, z, r); - r = Z_OK; - inflate_codes_free(s->sub.decode.codes, z); - LOAD - Tracev((stderr, "inflate: codes end, %lu total out\n", - z->total_out + (q >= s->read ? q - s->read : - (s->end - s->read) + (q - s->window)))); - if (!s->last) - { - s->mode = TYPE; - break; - } - s->mode = DRY; - case DRY: - FLUSH - if (s->read != s->write) - LEAVE - s->mode = DONE; - case DONE: - r = Z_STREAM_END; - LEAVE - case BAD: - r = Z_DATA_ERROR; - LEAVE - default: - r = Z_STREAM_ERROR; - LEAVE - } -} - - -int inflate_blocks_free(s, z) -inflate_blocks_statef *s; -z_streamp z; -{ - inflate_blocks_reset(s, z, Z_NULL); - ZFREE(z, s->window); - ZFREE(z, s->hufts); - ZFREE(z, s); - Tracev((stderr, "inflate: blocks freed\n")); - return Z_OK; -} - - -void inflate_set_dictionary(s, d, n) -inflate_blocks_statef *s; -const Bytef *d; -uInt n; -{ - zmemcpy(s->window, d, n); - s->read = s->write = s->window + n; -} - - -/* Returns true if inflate is currently at the end of a block generated - * by Z_SYNC_FLUSH or Z_FULL_FLUSH. - * IN assertion: s != Z_NULL - */ -int inflate_blocks_sync_point(s) -inflate_blocks_statef *s; -{ - return s->mode == LENS; -} diff --git a/collects/plot/src/all/infblock.h b/collects/plot/src/all/infblock.h deleted file mode 100644 index 173b2267ad..0000000000 --- a/collects/plot/src/all/infblock.h +++ /dev/null @@ -1,39 +0,0 @@ -/* infblock.h -- header to use infblock.c - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -struct inflate_blocks_state; -typedef struct inflate_blocks_state FAR inflate_blocks_statef; - -extern inflate_blocks_statef * inflate_blocks_new OF(( - z_streamp z, - check_func c, /* check function */ - uInt w)); /* window size */ - -extern int inflate_blocks OF(( - inflate_blocks_statef *, - z_streamp , - int)); /* initial return code */ - -extern void inflate_blocks_reset OF(( - inflate_blocks_statef *, - z_streamp , - uLongf *)); /* check value on output */ - -extern int inflate_blocks_free OF(( - inflate_blocks_statef *, - z_streamp)); - -extern void inflate_set_dictionary OF(( - inflate_blocks_statef *s, - const Bytef *d, /* dictionary */ - uInt n)); /* dictionary length */ - -extern int inflate_blocks_sync_point OF(( - inflate_blocks_statef *s)); diff --git a/collects/plot/src/all/infcodes.c b/collects/plot/src/all/infcodes.c deleted file mode 100644 index 9abe5412b9..0000000000 --- a/collects/plot/src/all/infcodes.c +++ /dev/null @@ -1,251 +0,0 @@ -/* infcodes.c -- process literals and length/distance pairs - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "inftrees.h" -#include "infblock.h" -#include "infcodes.h" -#include "infutil.h" -#include "inffast.h" - -/* simplify the use of the inflate_huft type with some defines */ -#define exop word.what.Exop -#define bits word.what.Bits - -typedef enum { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ - START, /* x: set up for LEN */ - LEN, /* i: get length/literal/eob next */ - LENEXT, /* i: getting length extra (have base) */ - DIST, /* i: get distance next */ - DISTEXT, /* i: getting distance extra */ - COPY, /* o: copying bytes in window, waiting for space */ - LIT, /* o: got literal, waiting for output space */ - WASH, /* o: got eob, possibly still output waiting */ - END, /* x: got eob and all data flushed */ - BADCODE} /* x: got error */ -inflate_codes_mode; - -/* inflate codes private state */ -struct inflate_codes_state { - - /* mode */ - inflate_codes_mode mode; /* current inflate_codes mode */ - - /* mode dependent information */ - uInt len; - union { - struct { - inflate_huft *tree; /* pointer into tree */ - uInt need; /* bits needed */ - } code; /* if LEN or DIST, where in tree */ - uInt lit; /* if LIT, literal */ - struct { - uInt get; /* bits to get for extra */ - uInt dist; /* distance back to copy from */ - } copy; /* if EXT or COPY, where and how much */ - } sub; /* submode */ - - /* mode independent information */ - Byte lbits; /* ltree bits decoded per branch */ - Byte dbits; /* dtree bits decoder per branch */ - inflate_huft *ltree; /* literal/length/eob tree */ - inflate_huft *dtree; /* distance tree */ - -}; - - -inflate_codes_statef *inflate_codes_new(bl, bd, tl, td, z) -uInt bl, bd; -inflate_huft *tl; -inflate_huft *td; /* need separate declaration for Borland C++ */ -z_streamp z; -{ - inflate_codes_statef *c; - - if ((c = (inflate_codes_statef *) - ZALLOC(z,1,sizeof(struct inflate_codes_state))) != Z_NULL) - { - c->mode = START; - c->lbits = (Byte)bl; - c->dbits = (Byte)bd; - c->ltree = tl; - c->dtree = td; - Tracev((stderr, "inflate: codes new\n")); - } - return c; -} - - -int inflate_codes(s, z, r) -inflate_blocks_statef *s; -z_streamp z; -int r; -{ - uInt j; /* temporary storage */ - inflate_huft *t; /* temporary pointer */ - uInt e; /* extra bits or operation */ - uLong b; /* bit buffer */ - uInt k; /* bits in bit buffer */ - Bytef *p; /* input data pointer */ - uInt n; /* bytes available there */ - Bytef *q; /* output window write pointer */ - uInt m; /* bytes to end of window or read pointer */ - Bytef *f; /* pointer to copy strings from */ - inflate_codes_statef *c = s->sub.decode.codes; /* codes state */ - - /* copy input/output information to locals (UPDATE macro restores) */ - LOAD - - /* process input and output based on current state */ - while (1) switch (c->mode) - { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ - case START: /* x: set up for LEN */ -#ifndef SLOW - if (m >= 258 && n >= 10) - { - UPDATE - r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z); - LOAD - if (r != Z_OK) - { - c->mode = r == Z_STREAM_END ? WASH : BADCODE; - break; - } - } -#endif /* !SLOW */ - c->sub.code.need = c->lbits; - c->sub.code.tree = c->ltree; - c->mode = LEN; - case LEN: /* i: get length/literal/eob next */ - j = c->sub.code.need; - NEEDBITS(j) - t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); - DUMPBITS(t->bits) - e = (uInt)(t->exop); - if (e == 0) /* literal */ - { - c->sub.lit = t->base; - Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? - "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", t->base)); - c->mode = LIT; - break; - } - if (e & 16) /* length */ - { - c->sub.copy.get = e & 15; - c->len = t->base; - c->mode = LENEXT; - break; - } - if ((e & 64) == 0) /* next table */ - { - c->sub.code.need = e; - c->sub.code.tree = t + t->base; - break; - } - if (e & 32) /* end of block */ - { - Tracevv((stderr, "inflate: end of block\n")); - c->mode = WASH; - break; - } - c->mode = BADCODE; /* invalid code */ - z->msg = (char*)"invalid literal/length code"; - r = Z_DATA_ERROR; - LEAVE - case LENEXT: /* i: getting length extra (have base) */ - j = c->sub.copy.get; - NEEDBITS(j) - c->len += (uInt)b & inflate_mask[j]; - DUMPBITS(j) - c->sub.code.need = c->dbits; - c->sub.code.tree = c->dtree; - Tracevv((stderr, "inflate: length %u\n", c->len)); - c->mode = DIST; - case DIST: /* i: get distance next */ - j = c->sub.code.need; - NEEDBITS(j) - t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); - DUMPBITS(t->bits) - e = (uInt)(t->exop); - if (e & 16) /* distance */ - { - c->sub.copy.get = e & 15; - c->sub.copy.dist = t->base; - c->mode = DISTEXT; - break; - } - if ((e & 64) == 0) /* next table */ - { - c->sub.code.need = e; - c->sub.code.tree = t + t->base; - break; - } - c->mode = BADCODE; /* invalid code */ - z->msg = (char*)"invalid distance code"; - r = Z_DATA_ERROR; - LEAVE - case DISTEXT: /* i: getting distance extra */ - j = c->sub.copy.get; - NEEDBITS(j) - c->sub.copy.dist += (uInt)b & inflate_mask[j]; - DUMPBITS(j) - Tracevv((stderr, "inflate: distance %u\n", c->sub.copy.dist)); - c->mode = COPY; - case COPY: /* o: copying bytes in window, waiting for space */ - f = q - c->sub.copy.dist; - while (f < s->window) /* modulo window size-"while" instead */ - f += s->end - s->window; /* of "if" handles invalid distances */ - while (c->len) - { - NEEDOUT - OUTBYTE(*f++) - if (f == s->end) - f = s->window; - c->len--; - } - c->mode = START; - break; - case LIT: /* o: got literal, waiting for output space */ - NEEDOUT - OUTBYTE(c->sub.lit) - c->mode = START; - break; - case WASH: /* o: got eob, possibly more output */ - if (k > 7) /* return unused byte, if any */ - { - Assert(k < 16, "inflate_codes grabbed too many bytes") - k -= 8; - n++; - p--; /* can always return one */ - } - FLUSH - if (s->read != s->write) - LEAVE - c->mode = END; - case END: - r = Z_STREAM_END; - LEAVE - case BADCODE: /* x: got error */ - r = Z_DATA_ERROR; - LEAVE - default: - r = Z_STREAM_ERROR; - LEAVE - } -#ifdef NEED_DUMMY_RETURN - return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ -#endif -} - - -void inflate_codes_free(c, z) -inflate_codes_statef *c; -z_streamp z; -{ - ZFREE(z, c); - Tracev((stderr, "inflate: codes free\n")); -} diff --git a/collects/plot/src/all/infcodes.h b/collects/plot/src/all/infcodes.h deleted file mode 100644 index 46821a02be..0000000000 --- a/collects/plot/src/all/infcodes.h +++ /dev/null @@ -1,27 +0,0 @@ -/* infcodes.h -- header to use infcodes.c - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -struct inflate_codes_state; -typedef struct inflate_codes_state FAR inflate_codes_statef; - -extern inflate_codes_statef *inflate_codes_new OF(( - uInt, uInt, - inflate_huft *, inflate_huft *, - z_streamp )); - -extern int inflate_codes OF(( - inflate_blocks_statef *, - z_streamp , - int)); - -extern void inflate_codes_free OF(( - inflate_codes_statef *, - z_streamp )); - diff --git a/collects/plot/src/all/inffast.c b/collects/plot/src/all/inffast.c deleted file mode 100644 index aa7f1d4d2a..0000000000 --- a/collects/plot/src/all/inffast.c +++ /dev/null @@ -1,183 +0,0 @@ -/* inffast.c -- process literals and length/distance pairs fast - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "inftrees.h" -#include "infblock.h" -#include "infcodes.h" -#include "infutil.h" -#include "inffast.h" - -struct inflate_codes_state {int dummy;}; /* for buggy compilers */ - -/* simplify the use of the inflate_huft type with some defines */ -#define exop word.what.Exop -#define bits word.what.Bits - -/* macros for bit input with no checking and for returning unused bytes */ -#define GRABBITS(j) {while(k<(j)){b|=((uLong)NEXTBYTE)<avail_in-n;c=(k>>3)>3:c;n+=c;p-=c;k-=c<<3;} - -/* Called with number of bytes left to write in window at least 258 - (the maximum string length) and number of input bytes available - at least ten. The ten bytes are six bytes for the longest length/ - distance pair plus four bytes for overloading the bit buffer. */ - -int inflate_fast(bl, bd, tl, td, s, z) -uInt bl, bd; -inflate_huft *tl; -inflate_huft *td; /* need separate declaration for Borland C++ */ -inflate_blocks_statef *s; -z_streamp z; -{ - inflate_huft *t; /* temporary pointer */ - uInt e; /* extra bits or operation */ - uLong b; /* bit buffer */ - uInt k; /* bits in bit buffer */ - Bytef *p; /* input data pointer */ - uInt n; /* bytes available there */ - Bytef *q; /* output window write pointer */ - uInt m; /* bytes to end of window or read pointer */ - uInt ml; /* mask for literal/length tree */ - uInt md; /* mask for distance tree */ - uInt c; /* bytes to copy */ - uInt d; /* distance back to copy from */ - Bytef *r; /* copy source pointer */ - - /* load input, output, bit values */ - LOAD - - /* initialize masks */ - ml = inflate_mask[bl]; - md = inflate_mask[bd]; - - /* do until not enough input or output space for fast loop */ - do { /* assume called with m >= 258 && n >= 10 */ - /* get literal/length code */ - GRABBITS(20) /* max bits for literal/length code */ - if ((e = (t = tl + ((uInt)b & ml))->exop) == 0) - { - DUMPBITS(t->bits) - Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? - "inflate: * literal '%c'\n" : - "inflate: * literal 0x%02x\n", t->base)); - *q++ = (Byte)t->base; - m--; - continue; - } - do { - DUMPBITS(t->bits) - if (e & 16) - { - /* get extra bits for length */ - e &= 15; - c = t->base + ((uInt)b & inflate_mask[e]); - DUMPBITS(e) - Tracevv((stderr, "inflate: * length %u\n", c)); - - /* decode distance base of block to copy */ - GRABBITS(15); /* max bits for distance code */ - e = (t = td + ((uInt)b & md))->exop; - do { - DUMPBITS(t->bits) - if (e & 16) - { - /* get extra bits to add to distance base */ - e &= 15; - GRABBITS(e) /* get extra bits (up to 13) */ - d = t->base + ((uInt)b & inflate_mask[e]); - DUMPBITS(e) - Tracevv((stderr, "inflate: * distance %u\n", d)); - - /* do the copy */ - m -= c; - r = q - d; - if (r < s->window) /* wrap if needed */ - { - do { - r += s->end - s->window; /* force pointer in window */ - } while (r < s->window); /* covers invalid distances */ - e = s->end - r; - if (c > e) - { - c -= e; /* wrapped copy */ - do { - *q++ = *r++; - } while (--e); - r = s->window; - do { - *q++ = *r++; - } while (--c); - } - else /* normal copy */ - { - *q++ = *r++; c--; - *q++ = *r++; c--; - do { - *q++ = *r++; - } while (--c); - } - } - else /* normal copy */ - { - *q++ = *r++; c--; - *q++ = *r++; c--; - do { - *q++ = *r++; - } while (--c); - } - break; - } - else if ((e & 64) == 0) - { - t += t->base; - e = (t += ((uInt)b & inflate_mask[e]))->exop; - } - else - { - z->msg = (char*)"invalid distance code"; - UNGRAB - UPDATE - return Z_DATA_ERROR; - } - } while (1); - break; - } - if ((e & 64) == 0) - { - t += t->base; - if ((e = (t += ((uInt)b & inflate_mask[e]))->exop) == 0) - { - DUMPBITS(t->bits) - Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? - "inflate: * literal '%c'\n" : - "inflate: * literal 0x%02x\n", t->base)); - *q++ = (Byte)t->base; - m--; - break; - } - } - else if (e & 32) - { - Tracevv((stderr, "inflate: * end of block\n")); - UNGRAB - UPDATE - return Z_STREAM_END; - } - else - { - z->msg = (char*)"invalid literal/length code"; - UNGRAB - UPDATE - return Z_DATA_ERROR; - } - } while (1); - } while (m >= 258 && n >= 10); - - /* not enough input or output--restore pointers and return */ - UNGRAB - UPDATE - return Z_OK; -} diff --git a/collects/plot/src/all/inffast.h b/collects/plot/src/all/inffast.h deleted file mode 100644 index a31a4bbb05..0000000000 --- a/collects/plot/src/all/inffast.h +++ /dev/null @@ -1,17 +0,0 @@ -/* inffast.h -- header to use inffast.c - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -extern int inflate_fast OF(( - uInt, - uInt, - inflate_huft *, - inflate_huft *, - inflate_blocks_statef *, - z_streamp )); diff --git a/collects/plot/src/all/inffixed.h b/collects/plot/src/all/inffixed.h deleted file mode 100644 index 77f7e76314..0000000000 --- a/collects/plot/src/all/inffixed.h +++ /dev/null @@ -1,151 +0,0 @@ -/* inffixed.h -- table for decoding fixed codes - * Generated automatically by the maketree.c program - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -local uInt fixed_bl = 9; -local uInt fixed_bd = 5; -local inflate_huft fixed_tl[] = { - {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115}, - {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},192}, - {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},160}, - {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},224}, - {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},144}, - {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},208}, - {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},176}, - {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},240}, - {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227}, - {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},200}, - {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},168}, - {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},232}, - {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},152}, - {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},216}, - {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},184}, - {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},248}, - {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163}, - {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},196}, - {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},164}, - {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},228}, - {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},148}, - {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},212}, - {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},180}, - {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},244}, - {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0}, - {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},204}, - {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},172}, - {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},236}, - {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},156}, - {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},220}, - {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},188}, - {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},252}, - {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131}, - {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},194}, - {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},162}, - {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},226}, - {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},146}, - {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},210}, - {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},178}, - {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},242}, - {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258}, - {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},202}, - {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},170}, - {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},234}, - {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},154}, - {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},218}, - {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},186}, - {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},250}, - {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195}, - {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},198}, - {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},166}, - {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},230}, - {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},150}, - {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},214}, - {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},182}, - {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},246}, - {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0}, - {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},206}, - {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},174}, - {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},238}, - {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},158}, - {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},222}, - {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},190}, - {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},254}, - {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115}, - {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},193}, - {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},161}, - {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},225}, - {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},145}, - {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},209}, - {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},177}, - {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},241}, - {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227}, - {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},201}, - {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},169}, - {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},233}, - {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},153}, - {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},217}, - {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},185}, - {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},249}, - {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163}, - {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},197}, - {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},165}, - {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},229}, - {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},149}, - {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},213}, - {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},181}, - {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},245}, - {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0}, - {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},205}, - {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},173}, - {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},237}, - {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},157}, - {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},221}, - {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},189}, - {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},253}, - {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131}, - {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},195}, - {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},163}, - {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},227}, - {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},147}, - {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},211}, - {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},179}, - {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},243}, - {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258}, - {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},203}, - {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},171}, - {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},235}, - {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},155}, - {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},219}, - {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},187}, - {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},251}, - {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195}, - {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},199}, - {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},167}, - {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},231}, - {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},151}, - {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},215}, - {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},183}, - {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},247}, - {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0}, - {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},207}, - {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},175}, - {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},239}, - {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},159}, - {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},223}, - {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},191}, - {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},255} - }; -local inflate_huft fixed_td[] = { - {{{80,5}},1}, {{{87,5}},257}, {{{83,5}},17}, {{{91,5}},4097}, - {{{81,5}},5}, {{{89,5}},1025}, {{{85,5}},65}, {{{93,5}},16385}, - {{{80,5}},3}, {{{88,5}},513}, {{{84,5}},33}, {{{92,5}},8193}, - {{{82,5}},9}, {{{90,5}},2049}, {{{86,5}},129}, {{{192,5}},24577}, - {{{80,5}},2}, {{{87,5}},385}, {{{83,5}},25}, {{{91,5}},6145}, - {{{81,5}},7}, {{{89,5}},1537}, {{{85,5}},97}, {{{93,5}},24577}, - {{{80,5}},4}, {{{88,5}},769}, {{{84,5}},49}, {{{92,5}},12289}, - {{{82,5}},13}, {{{90,5}},3073}, {{{86,5}},193}, {{{192,5}},24577} - }; diff --git a/collects/plot/src/all/inflate.c b/collects/plot/src/all/inflate.c deleted file mode 100644 index dfb2e867d8..0000000000 --- a/collects/plot/src/all/inflate.c +++ /dev/null @@ -1,366 +0,0 @@ -/* inflate.c -- zlib interface to inflate modules - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "infblock.h" - -struct inflate_blocks_state {int dummy;}; /* for buggy compilers */ - -typedef enum { - METHOD, /* waiting for method byte */ - FLAG, /* waiting for flag byte */ - DICT4, /* four dictionary check bytes to go */ - DICT3, /* three dictionary check bytes to go */ - DICT2, /* two dictionary check bytes to go */ - DICT1, /* one dictionary check byte to go */ - DICT0, /* waiting for inflateSetDictionary */ - BLOCKS, /* decompressing blocks */ - CHECK4, /* four check bytes to go */ - CHECK3, /* three check bytes to go */ - CHECK2, /* two check bytes to go */ - CHECK1, /* one check byte to go */ - DONE, /* finished check, done */ - BAD} /* got an error--stay here */ -inflate_mode; - -/* inflate private state */ -struct internal_state { - - /* mode */ - inflate_mode mode; /* current inflate mode */ - - /* mode dependent information */ - union { - uInt method; /* if FLAGS, method byte */ - struct { - uLong was; /* computed check value */ - uLong need; /* stream check value */ - } check; /* if CHECK, check values to compare */ - uInt marker; /* if BAD, inflateSync's marker bytes count */ - } sub; /* submode */ - - /* mode independent information */ - int nowrap; /* flag for no wrapper */ - uInt wbits; /* log2(window size) (8..15, defaults to 15) */ - inflate_blocks_statef - *blocks; /* current inflate_blocks state */ - -}; - - -int ZEXPORT inflateReset(z) -z_streamp z; -{ - if (z == Z_NULL || z->state == Z_NULL) - return Z_STREAM_ERROR; - z->total_in = z->total_out = 0; - z->msg = Z_NULL; - z->state->mode = z->state->nowrap ? BLOCKS : METHOD; - inflate_blocks_reset(z->state->blocks, z, Z_NULL); - Tracev((stderr, "inflate: reset\n")); - return Z_OK; -} - - -int ZEXPORT inflateEnd(z) -z_streamp z; -{ - if (z == Z_NULL || z->state == Z_NULL || z->zfree == Z_NULL) - return Z_STREAM_ERROR; - if (z->state->blocks != Z_NULL) - inflate_blocks_free(z->state->blocks, z); - ZFREE(z, z->state); - z->state = Z_NULL; - Tracev((stderr, "inflate: end\n")); - return Z_OK; -} - - -int ZEXPORT inflateInit2_(z, w, version, stream_size) -z_streamp z; -int w; -const char *version; -int stream_size; -{ - if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || - stream_size != sizeof(z_stream)) - return Z_VERSION_ERROR; - - /* initialize state */ - if (z == Z_NULL) - return Z_STREAM_ERROR; - z->msg = Z_NULL; - if (z->zalloc == Z_NULL) - { - z->zalloc = zcalloc; - z->opaque = (voidpf)0; - } - if (z->zfree == Z_NULL) z->zfree = zcfree; - if ((z->state = (struct internal_state FAR *) - ZALLOC(z,1,sizeof(struct internal_state))) == Z_NULL) - return Z_MEM_ERROR; - z->state->blocks = Z_NULL; - - /* handle undocumented nowrap option (no zlib header or check) */ - z->state->nowrap = 0; - if (w < 0) - { - w = - w; - z->state->nowrap = 1; - } - - /* set window size */ - if (w < 8 || w > 15) - { - inflateEnd(z); - return Z_STREAM_ERROR; - } - z->state->wbits = (uInt)w; - - /* create inflate_blocks state */ - if ((z->state->blocks = - inflate_blocks_new(z, z->state->nowrap ? Z_NULL : adler32, (uInt)1 << w)) - == Z_NULL) - { - inflateEnd(z); - return Z_MEM_ERROR; - } - Tracev((stderr, "inflate: allocated\n")); - - /* reset state */ - inflateReset(z); - return Z_OK; -} - - -int ZEXPORT inflateInit_(z, version, stream_size) -z_streamp z; -const char *version; -int stream_size; -{ - return inflateInit2_(z, DEF_WBITS, version, stream_size); -} - - -#define NEEDBYTE {if(z->avail_in==0)return r;r=f;} -#define NEXTBYTE (z->avail_in--,z->total_in++,*z->next_in++) - -int ZEXPORT inflate(z, f) -z_streamp z; -int f; -{ - int r; - uInt b; - - if (z == Z_NULL || z->state == Z_NULL || z->next_in == Z_NULL) - return Z_STREAM_ERROR; - f = f == Z_FINISH ? Z_BUF_ERROR : Z_OK; - r = Z_BUF_ERROR; - while (1) switch (z->state->mode) - { - case METHOD: - NEEDBYTE - if (((z->state->sub.method = NEXTBYTE) & 0xf) != Z_DEFLATED) - { - z->state->mode = BAD; - z->msg = (char*)"unknown compression method"; - z->state->sub.marker = 5; /* can't try inflateSync */ - break; - } - if ((z->state->sub.method >> 4) + 8 > z->state->wbits) - { - z->state->mode = BAD; - z->msg = (char*)"invalid window size"; - z->state->sub.marker = 5; /* can't try inflateSync */ - break; - } - z->state->mode = FLAG; - case FLAG: - NEEDBYTE - b = NEXTBYTE; - if (((z->state->sub.method << 8) + b) % 31) - { - z->state->mode = BAD; - z->msg = (char*)"incorrect header check"; - z->state->sub.marker = 5; /* can't try inflateSync */ - break; - } - Tracev((stderr, "inflate: zlib header ok\n")); - if (!(b & PRESET_DICT)) - { - z->state->mode = BLOCKS; - break; - } - z->state->mode = DICT4; - case DICT4: - NEEDBYTE - z->state->sub.check.need = (uLong)NEXTBYTE << 24; - z->state->mode = DICT3; - case DICT3: - NEEDBYTE - z->state->sub.check.need += (uLong)NEXTBYTE << 16; - z->state->mode = DICT2; - case DICT2: - NEEDBYTE - z->state->sub.check.need += (uLong)NEXTBYTE << 8; - z->state->mode = DICT1; - case DICT1: - NEEDBYTE - z->state->sub.check.need += (uLong)NEXTBYTE; - z->adler = z->state->sub.check.need; - z->state->mode = DICT0; - return Z_NEED_DICT; - case DICT0: - z->state->mode = BAD; - z->msg = (char*)"need dictionary"; - z->state->sub.marker = 0; /* can try inflateSync */ - return Z_STREAM_ERROR; - case BLOCKS: - r = inflate_blocks(z->state->blocks, z, r); - if (r == Z_DATA_ERROR) - { - z->state->mode = BAD; - z->state->sub.marker = 0; /* can try inflateSync */ - break; - } - if (r == Z_OK) - r = f; - if (r != Z_STREAM_END) - return r; - r = f; - inflate_blocks_reset(z->state->blocks, z, &z->state->sub.check.was); - if (z->state->nowrap) - { - z->state->mode = DONE; - break; - } - z->state->mode = CHECK4; - case CHECK4: - NEEDBYTE - z->state->sub.check.need = (uLong)NEXTBYTE << 24; - z->state->mode = CHECK3; - case CHECK3: - NEEDBYTE - z->state->sub.check.need += (uLong)NEXTBYTE << 16; - z->state->mode = CHECK2; - case CHECK2: - NEEDBYTE - z->state->sub.check.need += (uLong)NEXTBYTE << 8; - z->state->mode = CHECK1; - case CHECK1: - NEEDBYTE - z->state->sub.check.need += (uLong)NEXTBYTE; - - if (z->state->sub.check.was != z->state->sub.check.need) - { - z->state->mode = BAD; - z->msg = (char*)"incorrect data check"; - z->state->sub.marker = 5; /* can't try inflateSync */ - break; - } - Tracev((stderr, "inflate: zlib check ok\n")); - z->state->mode = DONE; - case DONE: - return Z_STREAM_END; - case BAD: - return Z_DATA_ERROR; - default: - return Z_STREAM_ERROR; - } -#ifdef NEED_DUMMY_RETURN - return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ -#endif -} - - -int ZEXPORT inflateSetDictionary(z, dictionary, dictLength) -z_streamp z; -const Bytef *dictionary; -uInt dictLength; -{ - uInt length = dictLength; - - if (z == Z_NULL || z->state == Z_NULL || z->state->mode != DICT0) - return Z_STREAM_ERROR; - - if (adler32(1L, dictionary, dictLength) != z->adler) return Z_DATA_ERROR; - z->adler = 1L; - - if (length >= ((uInt)1<state->wbits)) - { - length = (1<state->wbits)-1; - dictionary += dictLength - length; - } - inflate_set_dictionary(z->state->blocks, dictionary, length); - z->state->mode = BLOCKS; - return Z_OK; -} - - -int ZEXPORT inflateSync(z) -z_streamp z; -{ - uInt n; /* number of bytes to look at */ - Bytef *p; /* pointer to bytes */ - uInt m; /* number of marker bytes found in a row */ - uLong r, w; /* temporaries to save total_in and total_out */ - - /* set up */ - if (z == Z_NULL || z->state == Z_NULL) - return Z_STREAM_ERROR; - if (z->state->mode != BAD) - { - z->state->mode = BAD; - z->state->sub.marker = 0; - } - if ((n = z->avail_in) == 0) - return Z_BUF_ERROR; - p = z->next_in; - m = z->state->sub.marker; - - /* search */ - while (n && m < 4) - { - static const Byte mark[4] = {0, 0, 0xff, 0xff}; - if (*p == mark[m]) - m++; - else if (*p) - m = 0; - else - m = 4 - m; - p++, n--; - } - - /* restore */ - z->total_in += p - z->next_in; - z->next_in = p; - z->avail_in = n; - z->state->sub.marker = m; - - /* return no joy or set up to restart on a new block */ - if (m != 4) - return Z_DATA_ERROR; - r = z->total_in; w = z->total_out; - inflateReset(z); - z->total_in = r; z->total_out = w; - z->state->mode = BLOCKS; - return Z_OK; -} - - -/* Returns true if inflate is currently at the end of a block generated - * by Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP - * implementation to provide an additional safety check. PPP uses Z_SYNC_FLUSH - * but removes the length bytes of the resulting empty stored block. When - * decompressing, PPP checks that at the end of input packet, inflate is - * waiting for these length bytes. - */ -int ZEXPORT inflateSyncPoint(z) -z_streamp z; -{ - if (z == Z_NULL || z->state == Z_NULL || z->state->blocks == Z_NULL) - return Z_STREAM_ERROR; - return inflate_blocks_sync_point(z->state->blocks); -} diff --git a/collects/plot/src/all/inftrees.c b/collects/plot/src/all/inftrees.c deleted file mode 100644 index 4c32ca30d9..0000000000 --- a/collects/plot/src/all/inftrees.c +++ /dev/null @@ -1,454 +0,0 @@ -/* inftrees.c -- generate Huffman trees for efficient decoding - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "inftrees.h" - -#if !defined(BUILDFIXED) && !defined(STDC) -# define BUILDFIXED /* non ANSI compilers may not accept inffixed.h */ -#endif - -const char inflate_copyright[] = - " inflate 1.1.4 Copyright 1995-2002 Mark Adler "; -/* - If you use the zlib library in a product, an acknowledgment is welcome - in the documentation of your product. If for some reason you cannot - include such an acknowledgment, I would appreciate that you keep this - copyright string in the executable of your product. - */ -struct internal_state {int dummy;}; /* for buggy compilers */ - -/* simplify the use of the inflate_huft type with some defines */ -#define exop word.what.Exop -#define bits word.what.Bits - - -local int huft_build OF(( - uIntf *, /* code lengths in bits */ - uInt, /* number of codes */ - uInt, /* number of "simple" codes */ - const uIntf *, /* list of base values for non-simple codes */ - const uIntf *, /* list of extra bits for non-simple codes */ - inflate_huft * FAR*,/* result: starting table */ - uIntf *, /* maximum lookup bits (returns actual) */ - inflate_huft *, /* space for trees */ - uInt *, /* hufts used in space */ - uIntf * )); /* space for values */ - -/* Tables for deflate from PKZIP's appnote.txt. */ -local const uInt cplens[31] = { /* Copy lengths for literal codes 257..285 */ - 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, - 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; - /* see note #13 above about 258 */ -local const uInt cplext[31] = { /* Extra bits for literal codes 257..285 */ - 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, - 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 112, 112}; /* 112==invalid */ -local const uInt cpdist[30] = { /* Copy offsets for distance codes 0..29 */ - 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, - 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, - 8193, 12289, 16385, 24577}; -local const uInt cpdext[30] = { /* Extra bits for distance codes */ - 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, - 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, - 12, 12, 13, 13}; - -/* - Huffman code decoding is performed using a multi-level table lookup. - The fastest way to decode is to simply build a lookup table whose - size is determined by the longest code. However, the time it takes - to build this table can also be a factor if the data being decoded - is not very long. The most common codes are necessarily the - shortest codes, so those codes dominate the decoding time, and hence - the speed. The idea is you can have a shorter table that decodes the - shorter, more probable codes, and then point to subsidiary tables for - the longer codes. The time it costs to decode the longer codes is - then traded against the time it takes to make longer tables. - - This results of this trade are in the variables lbits and dbits - below. lbits is the number of bits the first level table for literal/ - length codes can decode in one step, and dbits is the same thing for - the distance codes. Subsequent tables are also less than or equal to - those sizes. These values may be adjusted either when all of the - codes are shorter than that, in which case the longest code length in - bits is used, or when the shortest code is *longer* than the requested - table size, in which case the length of the shortest code in bits is - used. - - There are two different values for the two tables, since they code a - different number of possibilities each. The literal/length table - codes 286 possible values, or in a flat code, a little over eight - bits. The distance table codes 30 possible values, or a little less - than five bits, flat. The optimum values for speed end up being - about one bit more than those, so lbits is 8+1 and dbits is 5+1. - The optimum values may differ though from machine to machine, and - possibly even between compilers. Your mileage may vary. - */ - - -/* If BMAX needs to be larger than 16, then h and x[] should be uLong. */ -#define BMAX 15 /* maximum bit length of any code */ - -local int huft_build(b, n, s, d, e, t, m, hp, hn, v) -uIntf *b; /* code lengths in bits (all assumed <= BMAX) */ -uInt n; /* number of codes (assumed <= 288) */ -uInt s; /* number of simple-valued codes (0..s-1) */ -const uIntf *d; /* list of base values for non-simple codes */ -const uIntf *e; /* list of extra bits for non-simple codes */ -inflate_huft * FAR *t; /* result: starting table */ -uIntf *m; /* maximum lookup bits, returns actual */ -inflate_huft *hp; /* space for trees */ -uInt *hn; /* hufts used in space */ -uIntf *v; /* working area: values in order of bit length */ -/* Given a list of code lengths and a maximum table size, make a set of - tables to decode that set of codes. Return Z_OK on success, Z_BUF_ERROR - if the given code set is incomplete (the tables are still built in this - case), or Z_DATA_ERROR if the input is invalid. */ -{ - - uInt a; /* counter for codes of length k */ - uInt c[BMAX+1]; /* bit length count table */ - uInt f; /* i repeats in table every f entries */ - int g; /* maximum code length */ - int h; /* table level */ - register uInt i; /* counter, current code */ - register uInt j; /* counter */ - register int k; /* number of bits in current code */ - int l; /* bits per table (returned in m) */ - uInt mask; /* (1 << w) - 1, to avoid cc -O bug on HP */ - register uIntf *p; /* pointer into c[], b[], or v[] */ - inflate_huft *q; /* points to current table */ - struct inflate_huft_s r; /* table entry for structure assignment */ - inflate_huft *u[BMAX]; /* table stack */ - register int w; /* bits before this table == (l * h) */ - uInt x[BMAX+1]; /* bit offsets, then code stack */ - uIntf *xp; /* pointer into x */ - int y; /* number of dummy codes added */ - uInt z; /* number of entries in current table */ - - - /* Generate counts for each bit length */ - p = c; -#define C0 *p++ = 0; -#define C2 C0 C0 C0 C0 -#define C4 C2 C2 C2 C2 - C4 /* clear c[]--assume BMAX+1 is 16 */ - p = b; i = n; - do { - c[*p++]++; /* assume all entries <= BMAX */ - } while (--i); - if (c[0] == n) /* null input--all zero length codes */ - { - *t = (inflate_huft *)Z_NULL; - *m = 0; - return Z_OK; - } - - - /* Find minimum and maximum length, bound *m by those */ - l = *m; - for (j = 1; j <= BMAX; j++) - if (c[j]) - break; - k = j; /* minimum code length */ - if ((uInt)l < j) - l = j; - for (i = BMAX; i; i--) - if (c[i]) - break; - g = i; /* maximum code length */ - if ((uInt)l > i) - l = i; - *m = l; - - - /* Adjust last length count to fill out codes, if needed */ - for (y = 1 << j; j < i; j++, y <<= 1) - if ((y -= c[j]) < 0) - return Z_DATA_ERROR; - if ((y -= c[i]) < 0) - return Z_DATA_ERROR; - c[i] += y; - - - /* Generate starting offsets into the value table for each length */ - x[1] = j = 0; - p = c + 1; xp = x + 2; - while (--i) { /* note that i == g from above */ - *xp++ = (j += *p++); - } - - - /* Make a table of values in order of bit lengths */ - p = b; i = 0; - do { - if ((j = *p++) != 0) - v[x[j]++] = i; - } while (++i < n); - n = x[g]; /* set n to length of v */ - - - /* Generate the Huffman codes and for each, make the table entries */ - x[0] = i = 0; /* first Huffman code is zero */ - p = v; /* grab values in bit order */ - h = -1; /* no tables yet--level -1 */ - w = -l; /* bits decoded == (l * h) */ - u[0] = (inflate_huft *)Z_NULL; /* just to keep compilers happy */ - q = (inflate_huft *)Z_NULL; /* ditto */ - z = 0; /* ditto */ - - /* go through the bit lengths (k already is bits in shortest code) */ - for (; k <= g; k++) - { - a = c[k]; - while (a--) - { - /* here i is the Huffman code of length k bits for value *p */ - /* make tables up to required level */ - while (k > w + l) - { - h++; - w += l; /* previous table always l bits */ - - /* compute minimum size table less than or equal to l bits */ - z = g - w; - z = z > (uInt)l ? l : z; /* table size upper limit */ - if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */ - { /* too few codes for k-w bit table */ - f -= a + 1; /* deduct codes from patterns left */ - xp = c + k; - if (j < z) - while (++j < z) /* try smaller tables up to z bits */ - { - if ((f <<= 1) <= *++xp) - break; /* enough codes to use up j bits */ - f -= *xp; /* else deduct codes from patterns */ - } - } - z = 1 << j; /* table entries for j-bit table */ - - /* allocate new table */ - if (*hn + z > MANY) /* (note: doesn't matter for fixed) */ - return Z_DATA_ERROR; /* overflow of MANY */ - u[h] = q = hp + *hn; - *hn += z; - - /* connect to last table, if there is one */ - if (h) - { - x[h] = i; /* save pattern for backing up */ - r.bits = (Byte)l; /* bits to dump before this table */ - r.exop = (Byte)j; /* bits in this table */ - j = i >> (w - l); - r.base = (uInt)(q - u[h-1] - j); /* offset to this table */ - u[h-1][j] = r; /* connect to last table */ - } - else - *t = q; /* first table is returned result */ - } - - /* set up table entry in r */ - r.bits = (Byte)(k - w); - if (p >= v + n) - r.exop = 128 + 64; /* out of values--invalid code */ - else if (*p < s) - { - r.exop = (Byte)(*p < 256 ? 0 : 32 + 64); /* 256 is end-of-block */ - r.base = *p++; /* simple code is just the value */ - } - else - { - r.exop = (Byte)(e[*p - s] + 16 + 64);/* non-simple--look up in lists */ - r.base = d[*p++ - s]; - } - - /* fill code-like entries with r */ - f = 1 << (k - w); - for (j = i >> w; j < z; j += f) - q[j] = r; - - /* backwards increment the k-bit code i */ - for (j = 1 << (k - 1); i & j; j >>= 1) - i ^= j; - i ^= j; - - /* backup over finished tables */ - mask = (1 << w) - 1; /* needed on HP, cc -O bug */ - while ((i & mask) != x[h]) - { - h--; /* don't need to update q */ - w -= l; - mask = (1 << w) - 1; - } - } - } - - - /* Return Z_BUF_ERROR if we were given an incomplete table */ - return y != 0 && g != 1 ? Z_BUF_ERROR : Z_OK; -} - - -int inflate_trees_bits(c, bb, tb, hp, z) -uIntf *c; /* 19 code lengths */ -uIntf *bb; /* bits tree desired/actual depth */ -inflate_huft * FAR *tb; /* bits tree result */ -inflate_huft *hp; /* space for trees */ -z_streamp z; /* for messages */ -{ - int r; - uInt hn = 0; /* hufts used in space */ - uIntf *v; /* work area for huft_build */ - - if ((v = (uIntf*)ZALLOC(z, 19, sizeof(uInt))) == Z_NULL) - return Z_MEM_ERROR; - r = huft_build(c, 19, 19, (uIntf*)Z_NULL, (uIntf*)Z_NULL, - tb, bb, hp, &hn, v); - if (r == Z_DATA_ERROR) - z->msg = (char*)"oversubscribed dynamic bit lengths tree"; - else if (r == Z_BUF_ERROR || *bb == 0) - { - z->msg = (char*)"incomplete dynamic bit lengths tree"; - r = Z_DATA_ERROR; - } - ZFREE(z, v); - return r; -} - - -int inflate_trees_dynamic(nl, nd, c, bl, bd, tl, td, hp, z) -uInt nl; /* number of literal/length codes */ -uInt nd; /* number of distance codes */ -uIntf *c; /* that many (total) code lengths */ -uIntf *bl; /* literal desired/actual bit depth */ -uIntf *bd; /* distance desired/actual bit depth */ -inflate_huft * FAR *tl; /* literal/length tree result */ -inflate_huft * FAR *td; /* distance tree result */ -inflate_huft *hp; /* space for trees */ -z_streamp z; /* for messages */ -{ - int r; - uInt hn = 0; /* hufts used in space */ - uIntf *v; /* work area for huft_build */ - - /* allocate work area */ - if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) - return Z_MEM_ERROR; - - /* build literal/length tree */ - r = huft_build(c, nl, 257, cplens, cplext, tl, bl, hp, &hn, v); - if (r != Z_OK || *bl == 0) - { - if (r == Z_DATA_ERROR) - z->msg = (char*)"oversubscribed literal/length tree"; - else if (r != Z_MEM_ERROR) - { - z->msg = (char*)"incomplete literal/length tree"; - r = Z_DATA_ERROR; - } - ZFREE(z, v); - return r; - } - - /* build distance tree */ - r = huft_build(c + nl, nd, 0, cpdist, cpdext, td, bd, hp, &hn, v); - if (r != Z_OK || (*bd == 0 && nl > 257)) - { - if (r == Z_DATA_ERROR) - z->msg = (char*)"oversubscribed distance tree"; - else if (r == Z_BUF_ERROR) { -#ifdef PKZIP_BUG_WORKAROUND - r = Z_OK; - } -#else - z->msg = (char*)"incomplete distance tree"; - r = Z_DATA_ERROR; - } - else if (r != Z_MEM_ERROR) - { - z->msg = (char*)"empty distance tree with lengths"; - r = Z_DATA_ERROR; - } - ZFREE(z, v); - return r; -#endif - } - - /* done */ - ZFREE(z, v); - return Z_OK; -} - - -/* build fixed tables only once--keep them here */ -#ifdef BUILDFIXED -local int fixed_built = 0; -#define FIXEDH 544 /* number of hufts used by fixed tables */ -local inflate_huft fixed_mem[FIXEDH]; -local uInt fixed_bl; -local uInt fixed_bd; -local inflate_huft *fixed_tl; -local inflate_huft *fixed_td; -#else -#include "inffixed.h" -#endif - - -int inflate_trees_fixed(bl, bd, tl, td, z) -uIntf *bl; /* literal desired/actual bit depth */ -uIntf *bd; /* distance desired/actual bit depth */ -inflate_huft * FAR *tl; /* literal/length tree result */ -inflate_huft * FAR *td; /* distance tree result */ -z_streamp z; /* for memory allocation */ -{ -#ifdef BUILDFIXED - /* build fixed tables if not already */ - if (!fixed_built) - { - int k; /* temporary variable */ - uInt f = 0; /* number of hufts used in fixed_mem */ - uIntf *c; /* length list for huft_build */ - uIntf *v; /* work area for huft_build */ - - /* allocate memory */ - if ((c = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) - return Z_MEM_ERROR; - if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) - { - ZFREE(z, c); - return Z_MEM_ERROR; - } - - /* literal table */ - for (k = 0; k < 144; k++) - c[k] = 8; - for (; k < 256; k++) - c[k] = 9; - for (; k < 280; k++) - c[k] = 7; - for (; k < 288; k++) - c[k] = 8; - fixed_bl = 9; - huft_build(c, 288, 257, cplens, cplext, &fixed_tl, &fixed_bl, - fixed_mem, &f, v); - - /* distance table */ - for (k = 0; k < 30; k++) - c[k] = 5; - fixed_bd = 5; - huft_build(c, 30, 0, cpdist, cpdext, &fixed_td, &fixed_bd, - fixed_mem, &f, v); - - /* done */ - ZFREE(z, v); - ZFREE(z, c); - fixed_built = 1; - } -#endif - *bl = fixed_bl; - *bd = fixed_bd; - *tl = fixed_tl; - *td = fixed_td; - return Z_OK; -} diff --git a/collects/plot/src/all/inftrees.h b/collects/plot/src/all/inftrees.h deleted file mode 100644 index 04b73b7296..0000000000 --- a/collects/plot/src/all/inftrees.h +++ /dev/null @@ -1,58 +0,0 @@ -/* inftrees.h -- header to use inftrees.c - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* Huffman code lookup table entry--this entry is four bytes for machines - that have 16-bit pointers (e.g. PC's in the small or medium model). */ - -typedef struct inflate_huft_s FAR inflate_huft; - -struct inflate_huft_s { - union { - struct { - Byte Exop; /* number of extra bits or operation */ - Byte Bits; /* number of bits in this code or subcode */ - } what; - uInt pad; /* pad structure to a power of 2 (4 bytes for */ - } word; /* 16-bit, 8 bytes for 32-bit int's) */ - uInt base; /* literal, length base, distance base, - or table offset */ -}; - -/* Maximum size of dynamic tree. The maximum found in a long but non- - exhaustive search was 1004 huft structures (850 for length/literals - and 154 for distances, the latter actually the result of an - exhaustive search). The actual maximum is not known, but the - value below is more than safe. */ -#define MANY 1440 - -extern int inflate_trees_bits OF(( - uIntf *, /* 19 code lengths */ - uIntf *, /* bits tree desired/actual depth */ - inflate_huft * FAR *, /* bits tree result */ - inflate_huft *, /* space for trees */ - z_streamp)); /* for messages */ - -extern int inflate_trees_dynamic OF(( - uInt, /* number of literal/length codes */ - uInt, /* number of distance codes */ - uIntf *, /* that many (total) code lengths */ - uIntf *, /* literal desired/actual bit depth */ - uIntf *, /* distance desired/actual bit depth */ - inflate_huft * FAR *, /* literal/length tree result */ - inflate_huft * FAR *, /* distance tree result */ - inflate_huft *, /* space for trees */ - z_streamp)); /* for messages */ - -extern int inflate_trees_fixed OF(( - uIntf *, /* literal desired/actual bit depth */ - uIntf *, /* distance desired/actual bit depth */ - inflate_huft * FAR *, /* literal/length tree result */ - inflate_huft * FAR *, /* distance tree result */ - z_streamp)); /* for memory allocation */ diff --git a/collects/plot/src/all/infutil.c b/collects/plot/src/all/infutil.c deleted file mode 100644 index 9a076221f2..0000000000 --- a/collects/plot/src/all/infutil.c +++ /dev/null @@ -1,87 +0,0 @@ -/* inflate_util.c -- data and routines common to blocks and codes - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "infblock.h" -#include "inftrees.h" -#include "infcodes.h" -#include "infutil.h" - -struct inflate_codes_state {int dummy;}; /* for buggy compilers */ - -/* And'ing with mask[n] masks the lower n bits */ -uInt inflate_mask[17] = { - 0x0000, - 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff, - 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff -}; - - -/* copy as much as possible from the sliding window to the output area */ -int inflate_flush(s, z, r) -inflate_blocks_statef *s; -z_streamp z; -int r; -{ - uInt n; - Bytef *p; - Bytef *q; - - /* local copies of source and destination pointers */ - p = z->next_out; - q = s->read; - - /* compute number of bytes to copy as far as end of window */ - n = (uInt)((q <= s->write ? s->write : s->end) - q); - if (n > z->avail_out) n = z->avail_out; - if (n && r == Z_BUF_ERROR) r = Z_OK; - - /* update counters */ - z->avail_out -= n; - z->total_out += n; - - /* update check information */ - if (s->checkfn != Z_NULL) - z->adler = s->check = (*s->checkfn)(s->check, q, n); - - /* copy as far as end of window */ - zmemcpy(p, q, n); - p += n; - q += n; - - /* see if more to copy at beginning of window */ - if (q == s->end) - { - /* wrap pointers */ - q = s->window; - if (s->write == s->end) - s->write = s->window; - - /* compute bytes to copy */ - n = (uInt)(s->write - q); - if (n > z->avail_out) n = z->avail_out; - if (n && r == Z_BUF_ERROR) r = Z_OK; - - /* update counters */ - z->avail_out -= n; - z->total_out += n; - - /* update check information */ - if (s->checkfn != Z_NULL) - z->adler = s->check = (*s->checkfn)(s->check, q, n); - - /* copy */ - zmemcpy(p, q, n); - p += n; - q += n; - } - - /* update pointers */ - z->next_out = p; - s->read = q; - - /* done */ - return r; -} diff --git a/collects/plot/src/all/infutil.h b/collects/plot/src/all/infutil.h deleted file mode 100644 index 4401df82fc..0000000000 --- a/collects/plot/src/all/infutil.h +++ /dev/null @@ -1,98 +0,0 @@ -/* infutil.h -- types and macros common to blocks and codes - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -#ifndef _INFUTIL_H -#define _INFUTIL_H - -typedef enum { - TYPE, /* get type bits (3, including end bit) */ - LENS, /* get lengths for stored */ - STORED, /* processing stored block */ - TABLE, /* get table lengths */ - BTREE, /* get bit lengths tree for a dynamic block */ - DTREE, /* get length, distance trees for a dynamic block */ - CODES, /* processing fixed or dynamic block */ - DRY, /* output remaining window bytes */ - DONE, /* finished last block, done */ - BAD} /* got a data error--stuck here */ -inflate_block_mode; - -/* inflate blocks semi-private state */ -struct inflate_blocks_state { - - /* mode */ - inflate_block_mode mode; /* current inflate_block mode */ - - /* mode dependent information */ - union { - uInt left; /* if STORED, bytes left to copy */ - struct { - uInt table; /* table lengths (14 bits) */ - uInt index; /* index into blens (or border) */ - uIntf *blens; /* bit lengths of codes */ - uInt bb; /* bit length tree depth */ - inflate_huft *tb; /* bit length decoding tree */ - } trees; /* if DTREE, decoding info for trees */ - struct { - inflate_codes_statef - *codes; - } decode; /* if CODES, current state */ - } sub; /* submode */ - uInt last; /* true if this block is the last block */ - - /* mode independent information */ - uInt bitk; /* bits in bit buffer */ - uLong bitb; /* bit buffer */ - inflate_huft *hufts; /* single malloc for tree space */ - Bytef *window; /* sliding window */ - Bytef *end; /* one byte after sliding window */ - Bytef *read; /* window read pointer */ - Bytef *write; /* window write pointer */ - check_func checkfn; /* check function */ - uLong check; /* check on output */ - -}; - - -/* defines for inflate input/output */ -/* update pointers and return */ -#define UPDBITS {s->bitb=b;s->bitk=k;} -#define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;} -#define UPDOUT {s->write=q;} -#define UPDATE {UPDBITS UPDIN UPDOUT} -#define LEAVE {UPDATE return inflate_flush(s,z,r);} -/* get bytes and bits */ -#define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;} -#define NEEDBYTE {if(n)r=Z_OK;else LEAVE} -#define NEXTBYTE (n--,*p++) -#define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<>=(j);k-=(j);} -/* output bytes */ -#define WAVAIL (uInt)(qread?s->read-q-1:s->end-q) -#define LOADOUT {q=s->write;m=(uInt)WAVAIL;} -#define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=(uInt)WAVAIL;}} -#define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT} -#define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;} -#define OUTBYTE(a) {*q++=(Byte)(a);m--;} -/* load local pointers */ -#define LOAD {LOADIN LOADOUT} - -/* masks for lower bits (size given to avoid silly warnings with Visual C++) */ -extern uInt inflate_mask[17]; - -/* copy as much as possible from the sliding window to the output area */ -extern int inflate_flush OF(( - inflate_blocks_statef *, - z_streamp , - int)); - -struct internal_state {int dummy;}; /* for buggy compilers */ - -#endif diff --git a/collects/plot/src/all/jisx0208.h b/collects/plot/src/all/jisx0208.h deleted file mode 100644 index 4ddce67f80..0000000000 --- a/collects/plot/src/all/jisx0208.h +++ /dev/null @@ -1,1206 +0,0 @@ -#ifndef JISX0208_H -#define JISX0208_H -/* This file was derived from "src/VF_Ftype.c" in VFlib2-2.24.2 - by Dr. Kakugawa */ - -/* JIS -> Unicode mapping table */ -static unsigned short UnicodeTbl[][94] = { - { /* category 01 */ - 0x0000, 0x3001, 0x3002, 0xFF0C, 0xFF0E, 0x30FB, 0xFF1A, 0xFF1B, - 0xFF1F, 0xFF01, 0x309B, 0x309C, 0x00B4, 0xFF40, 0x00A8, 0xFF3E, - 0xFFE3, 0xFF3F, 0x30FD, 0x30FE, 0x309D, 0x309E, 0x3003, 0x4EDD, - 0x3005, 0x3006, 0x3007, 0x30FC, 0x2015, 0x2010, 0xFF0F, 0xFF3C, - 0xFF5E, 0x2225, 0xFF5C, 0x2026, 0x2025, 0x2018, 0x2019, 0x201C, - 0x201D, 0xFF08, 0xFF09, 0x3014, 0x3015, 0xFF3B, 0xFF3D, 0xFF5B, - 0xFF5D, 0x3008, 0x3009, 0x300A, 0x300B, 0x300C, 0x300D, 0x300E, - 0x300F, 0x3010, 0x3011, 0xFF0B, 0xFF0D, 0x00B1, 0x00D7, 0x00F7, - 0xFF1D, 0x2260, 0xFF1C, 0xFF1E, 0x2266, 0x2267, 0x221E, 0x2234, - 0x2642, 0x2640, 0x00B0, 0x2032, 0x2033, 0x2103, 0xFFE5, 0xFF04, - 0xFFE0, 0xFFE1, 0xFF05, 0xFF03, 0xFF06, 0xFF0A, 0xFF20, 0x00A7, - 0x2606, 0x2605, 0x25CB, 0x25CF, 0x25CE, 0x25C7}, - { /* category 02 */ - 0x25C6, 0x25A1, 0x25A0, 0x25B3, 0x25B2, 0x25BD, 0x25BC, 0x203B, - 0x3012, 0x2192, 0x2190, 0x2191, 0x2193, 0x3013, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x2208, 0x220B, 0x2286, 0x2287, 0x2282, 0x2283, 0x222A, - 0x2229, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x2227, 0x2228, 0xFFE2, 0x21D2, 0x21D4, 0x2200, 0x2203, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x2220, 0x22A5, 0x2312, 0x2202, 0x2207, - 0x2261, 0x2252, 0x226A, 0x226B, 0x221A, 0x223D, 0x221D, 0x2235, - 0x222B, 0x222C, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x212B, 0x2030, 0x266F, 0x266D, 0x266A, 0x2020, 0x2021, /**/ - 0x00B6, 0x0000, 0x0000, 0x0000, 0x0000, 0x25EF}, - { /* category 03 */ - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xFF10, - 0xFF11, 0xFF12, 0xFF13, 0xFF14, 0xFF15, 0xFF16, 0xFF17, 0xFF18, - 0xFF19, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0xFF21, 0xFF22, 0xFF23, 0xFF24, 0xFF25, 0xFF26, 0xFF27, 0xFF28, - 0xFF29, 0xFF2A, 0xFF2B, 0xFF2C, 0xFF2D, 0xFF2E, 0xFF2F, 0xFF30, - 0xFF31, 0xFF32, 0xFF33, 0xFF34, 0xFF35, 0xFF36, 0xFF37, 0xFF38, - 0xFF39, 0xFF3A, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0xFF41, 0xFF42, 0xFF43, 0xFF44, 0xFF45, 0xFF46, 0xFF47, 0xFF48, - 0xFF49, 0xFF4A, 0xFF4B, 0xFF4C, 0xFF4D, 0xFF4E, 0xFF4F, 0xFF50, - 0xFF51, 0xFF52, 0xFF53, 0xFF54, 0xFF55, 0xFF56, 0xFF57, 0xFF58, - 0xFF59, 0xFF5A, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 04 */ - 0x3041, 0x3042, 0x3043, 0x3044, 0x3045, 0x3046, 0x3047, 0x3048, - 0x3049, 0x304A, 0x304B, 0x304C, 0x304D, 0x304E, 0x304F, 0x3050, - 0x3051, 0x3052, 0x3053, 0x3054, 0x3055, 0x3056, 0x3057, 0x3058, - 0x3059, 0x305A, 0x305B, 0x305C, 0x305D, 0x305E, 0x305F, 0x3060, - 0x3061, 0x3062, 0x3063, 0x3064, 0x3065, 0x3066, 0x3067, 0x3068, - 0x3069, 0x306A, 0x306B, 0x306C, 0x306D, 0x306E, 0x306F, 0x3070, - 0x3071, 0x3072, 0x3073, 0x3074, 0x3075, 0x3076, 0x3077, 0x3078, - 0x3079, 0x307A, 0x307B, 0x307C, 0x307D, 0x307E, 0x307F, 0x3080, - 0x3081, 0x3082, 0x3083, 0x3084, 0x3085, 0x3086, 0x3087, 0x3088, - 0x3089, 0x308A, 0x308B, 0x308C, 0x308D, 0x308E, 0x308F, 0x3090, - 0x3091, 0x3092, 0x3093, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 05 */ - 0x30A1, 0x30A2, 0x30A3, 0x30A4, 0x30A5, 0x30A6, 0x30A7, 0x30A8, - 0x30A9, 0x30AA, 0x30AB, 0x30AC, 0x30AD, 0x30AE, 0x30AF, 0x30B0, - 0x30B1, 0x30B2, 0x30B3, 0x30B4, 0x30B5, 0x30B6, 0x30B7, 0x30B8, - 0x30B9, 0x30BA, 0x30BB, 0x30BC, 0x30BD, 0x30BE, 0x30BF, 0x30C0, - 0x30C1, 0x30C2, 0x30C3, 0x30C4, 0x30C5, 0x30C6, 0x30C7, 0x30C8, - 0x30C9, 0x30CA, 0x30CB, 0x30CC, 0x30CD, 0x30CE, 0x30CF, 0x30D0, - 0x30D1, 0x30D2, 0x30D3, 0x30D4, 0x30D5, 0x30D6, 0x30D7, 0x30D8, - 0x30D9, 0x30DA, 0x30DB, 0x30DC, 0x30DD, 0x30DE, 0x30DF, 0x30E0, - 0x30E1, 0x30E2, 0x30E3, 0x30E4, 0x30E5, 0x30E6, 0x30E7, 0x30E8, - 0x30E9, 0x30EA, 0x30EB, 0x30EC, 0x30ED, 0x30EE, 0x30EF, 0x30F0, - 0x30F1, 0x30F2, 0x30F3, 0x30F4, 0x30F5, 0x30F6, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 06 */ - 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397, 0x0398, - 0x0399, 0x039A, 0x039B, 0x039C, 0x039D, 0x039E, 0x039F, 0x03A0, - 0x03A1, 0x03A3, 0x03A4, 0x03A5, 0x03A6, 0x03A7, 0x03A8, 0x03A9, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7, 0x03B8, - 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, 0x03C0, - 0x03C1, 0x03C3, 0x03C4, 0x03C5, 0x03C6, 0x03C7, 0x03C8, 0x03C9, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 07 */ - 0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0401, 0x0416, - 0x0417, 0x0418, 0x0419, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E, - 0x041F, 0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, - 0x0427, 0x0428, 0x0429, 0x042A, 0x042B, 0x042C, 0x042D, 0x042E, - 0x042F, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0451, 0x0436, - 0x0437, 0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, - 0x043F, 0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, - 0x0447, 0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, - 0x044F, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 08 */ - 0x2500, 0x2502, 0x250C, 0x2510, 0x2518, 0x2514, 0x251C, 0x252C, - 0x2524, 0x2534, 0x253C, 0x2501, 0x2503, 0x250F, 0x2513, 0x251B, - 0x2517, 0x2523, 0x2533, 0x252B, 0x253B, 0x254B, 0x2520, 0x252F, - 0x2528, 0x2537, 0x253F, 0x251D, 0x2530, 0x2525, 0x2538, 0x2542, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 09 */ - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 10 */ - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 11 */ - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 12 */ - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 13 */ - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 14 */ - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 15 */ - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 16 */ - 0x4E9C, 0x5516, 0x5A03, 0x963F, 0x54C0, 0x611B, 0x6328, 0x59F6, - 0x9022, 0x8475, 0x831C, 0x7A50, 0x60AA, 0x63E1, 0x6E25, 0x65ED, - 0x8466, 0x82A6, 0x9BF5, 0x6893, 0x5727, 0x65A1, 0x6271, 0x5B9B, - 0x59D0, 0x867B, 0x98F4, 0x7D62, 0x7DBE, 0x9B8E, 0x6216, 0x7C9F, - 0x88B7, 0x5B89, 0x5EB5, 0x6309, 0x6697, 0x6848, 0x95C7, 0x978D, - 0x674F, 0x4EE5, 0x4F0A, 0x4F4D, 0x4F9D, 0x5049, 0x56F2, 0x5937, - 0x59D4, 0x5A01, 0x5C09, 0x60DF, 0x610F, 0x6170, 0x6613, 0x6905, - 0x70BA, 0x754F, 0x7570, 0x79FB, 0x7DAD, 0x7DEF, 0x80C3, 0x840E, - 0x8863, 0x8B02, 0x9055, 0x907A, 0x533B, 0x4E95, 0x4EA5, 0x57DF, - 0x80B2, 0x90C1, 0x78EF, 0x4E00, 0x58F1, 0x6EA2, 0x9038, 0x7A32, - 0x8328, 0x828B, 0x9C2F, 0x5141, 0x5370, 0x54BD, 0x54E1, 0x56E0, - 0x59FB, 0x5F15, 0x98F2, 0x6DEB, 0x80E4, 0x852D}, - { /* category 17 */ - 0x9662, 0x9670, 0x96A0, 0x97FB, 0x540B, 0x53F3, 0x5B87, 0x70CF, - 0x7FBD, 0x8FC2, 0x96E8, 0x536F, 0x9D5C, 0x7ABA, 0x4E11, 0x7893, - 0x81FC, 0x6E26, 0x5618, 0x5504, 0x6B1D, 0x851A, 0x9C3B, 0x59E5, - 0x53A9, 0x6D66, 0x74DC, 0x958F, 0x5642, 0x4E91, 0x904B, 0x96F2, - 0x834F, 0x990C, 0x53E1, 0x55B6, 0x5B30, 0x5F71, 0x6620, 0x66F3, - 0x6804, 0x6C38, 0x6CF3, 0x6D29, 0x745B, 0x76C8, 0x7A4E, 0x9834, - 0x82F1, 0x885B, 0x8A60, 0x92ED, 0x6DB2, 0x75AB, 0x76CA, 0x99C5, - 0x60A6, 0x8B01, 0x8D8A, 0x95B2, 0x698E, 0x53AD, 0x5186, 0x5712, - 0x5830, 0x5944, 0x5BB4, 0x5EF6, 0x6028, 0x63A9, 0x63F4, 0x6CBF, - 0x6F14, 0x708E, 0x7114, 0x7159, 0x71D5, 0x733F, 0x7E01, 0x8276, - 0x82D1, 0x8597, 0x9060, 0x925B, 0x9D1B, 0x5869, 0x65BC, 0x6C5A, - 0x7525, 0x51F9, 0x592E, 0x5965, 0x5F80, 0x5FDC}, - { /* category 18 */ - 0x62BC, 0x65FA, 0x6A2A, 0x6B27, 0x6BB4, 0x738B, 0x7FC1, 0x8956, - 0x9D2C, 0x9D0E, 0x9EC4, 0x5CA1, 0x6C96, 0x837B, 0x5104, 0x5C4B, - 0x61B6, 0x81C6, 0x6876, 0x7261, 0x4E59, 0x4FFA, 0x5378, 0x6069, - 0x6E29, 0x7A4F, 0x97F3, 0x4E0B, 0x5316, 0x4EEE, 0x4F55, 0x4F3D, - 0x4FA1, 0x4F73, 0x52A0, 0x53EF, 0x5609, 0x590F, 0x5AC1, 0x5BB6, - 0x5BE1, 0x79D1, 0x6687, 0x679C, 0x67B6, 0x6B4C, 0x6CB3, 0x706B, - 0x73C2, 0x798D, 0x79BE, 0x7A3C, 0x7B87, 0x82B1, 0x82DB, 0x8304, - 0x8377, 0x83EF, 0x83D3, 0x8766, 0x8AB2, 0x5629, 0x8CA8, 0x8FE6, - 0x904E, 0x971E, 0x868A, 0x4FC4, 0x5CE8, 0x6211, 0x7259, 0x753B, - 0x81E5, 0x82BD, 0x86FE, 0x8CC0, 0x96C5, 0x9913, 0x99D5, 0x4ECB, - 0x4F1A, 0x89E3, 0x56DE, 0x584A, 0x58CA, 0x5EFB, 0x5FEB, 0x602A, - 0x6094, 0x6062, 0x61D0, 0x6212, 0x62D0, 0x6539}, - { /* category 19 */ - 0x9B41, 0x6666, 0x68B0, 0x6D77, 0x7070, 0x754C, 0x7686, 0x7D75, - 0x82A5, 0x87F9, 0x958B, 0x968E, 0x8C9D, 0x51F1, 0x52BE, 0x5916, - 0x54B3, 0x5BB3, 0x5D16, 0x6168, 0x6982, 0x6DAF, 0x788D, 0x84CB, - 0x8857, 0x8A72, 0x93A7, 0x9AB8, 0x6D6C, 0x99A8, 0x86D9, 0x57A3, - 0x67FF, 0x86CE, 0x920E, 0x5283, 0x5687, 0x5404, 0x5ED3, 0x62E1, - 0x64B9, 0x683C, 0x6838, 0x6BBB, 0x7372, 0x78BA, 0x7A6B, 0x899A, - 0x89D2, 0x8D6B, 0x8F03, 0x90ED, 0x95A3, 0x9694, 0x9769, 0x5B66, - 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0x9169, 0x9173, 0x9172, 0x918B, 0x9189, 0x9182, 0x91A2, 0x91AB, - 0x91AF, 0x91AA, 0x91B5, 0x91B4, 0x91BA, 0x91C0, 0x91C1, 0x91C9, - 0x91CB, 0x91D0, 0x91D6, 0x91DF, 0x91E1, 0x91DB, 0x91FC, 0x91F5, - 0x91F6, 0x921E, 0x91FF, 0x9214, 0x922C, 0x9215, 0x9211, 0x925E, - 0x9257, 0x9245, 0x9249, 0x9264, 0x9248, 0x9295, 0x923F, 0x924B, - 0x9250, 0x929C, 0x9296, 0x9293, 0x929B, 0x925A, 0x92CF, 0x92B9, - 0x92B7, 0x92E9, 0x930F, 0x92FA, 0x9344, 0x932E}, - { /* category 79 */ - 0x9319, 0x9322, 0x931A, 0x9323, 0x933A, 0x9335, 0x933B, 0x935C, - 0x9360, 0x937C, 0x936E, 0x9356, 0x93B0, 0x93AC, 0x93AD, 0x9394, - 0x93B9, 0x93D6, 0x93D7, 0x93E8, 0x93E5, 0x93D8, 0x93C3, 0x93DD, - 0x93D0, 0x93C8, 0x93E4, 0x941A, 0x9414, 0x9413, 0x9403, 0x9407, - 0x9410, 0x9436, 0x942B, 0x9435, 0x9421, 0x943A, 0x9441, 0x9452, - 0x9444, 0x945B, 0x9460, 0x9462, 0x945E, 0x946A, 0x9229, 0x9470, - 0x9475, 0x9477, 0x947D, 0x945A, 0x947C, 0x947E, 0x9481, 0x947F, - 0x9582, 0x9587, 0x958A, 0x9594, 0x9596, 0x9598, 0x9599, 0x95A0, - 0x95A8, 0x95A7, 0x95AD, 0x95BC, 0x95BB, 0x95B9, 0x95BE, 0x95CA, - 0x6FF6, 0x95C3, 0x95CD, 0x95CC, 0x95D5, 0x95D4, 0x95D6, 0x95DC, - 0x95E1, 0x95E5, 0x95E2, 0x9621, 0x9628, 0x962E, 0x962F, 0x9642, - 0x964C, 0x964F, 0x964B, 0x9677, 0x965C, 0x965E}, - { /* category 80 */ - 0x965D, 0x965F, 0x9666, 0x9672, 0x966C, 0x968D, 0x9698, 0x9695, - 0x9697, 0x96AA, 0x96A7, 0x96B1, 0x96B2, 0x96B0, 0x96B4, 0x96B6, - 0x96B8, 0x96B9, 0x96CE, 0x96CB, 0x96C9, 0x96CD, 0x894D, 0x96DC, - 0x970D, 0x96D5, 0x96F9, 0x9704, 0x9706, 0x9708, 0x9713, 0x970E, - 0x9711, 0x970F, 0x9716, 0x9719, 0x9724, 0x972A, 0x9730, 0x9739, - 0x973D, 0x973E, 0x9744, 0x9746, 0x9748, 0x9742, 0x9749, 0x975C, - 0x9760, 0x9764, 0x9766, 0x9768, 0x52D2, 0x976B, 0x9771, 0x9779, - 0x9785, 0x977C, 0x9781, 0x977A, 0x9786, 0x978B, 0x978F, 0x9790, - 0x979C, 0x97A8, 0x97A6, 0x97A3, 0x97B3, 0x97B4, 0x97C3, 0x97C6, - 0x97C8, 0x97CB, 0x97DC, 0x97ED, 0x9F4F, 0x97F2, 0x7ADF, 0x97F6, - 0x97F5, 0x980F, 0x980C, 0x9838, 0x9824, 0x9821, 0x9837, 0x983D, - 0x9846, 0x984F, 0x984B, 0x986B, 0x986F, 0x9870}, - { /* category 81 */ - 0x9871, 0x9874, 0x9873, 0x98AA, 0x98AF, 0x98B1, 0x98B6, 0x98C4, - 0x98C3, 0x98C6, 0x98E9, 0x98EB, 0x9903, 0x9909, 0x9912, 0x9914, - 0x9918, 0x9921, 0x991D, 0x991E, 0x9924, 0x9920, 0x992C, 0x992E, - 0x993D, 0x993E, 0x9942, 0x9949, 0x9945, 0x9950, 0x994B, 0x9951, - 0x9952, 0x994C, 0x9955, 0x9997, 0x9998, 0x99A5, 0x99AD, 0x99AE, - 0x99BC, 0x99DF, 0x99DB, 0x99DD, 0x99D8, 0x99D1, 0x99ED, 0x99EE, - 0x99F1, 0x99F2, 0x99FB, 0x99F8, 0x9A01, 0x9A0F, 0x9A05, 0x99E2, - 0x9A19, 0x9A2B, 0x9A37, 0x9A45, 0x9A42, 0x9A40, 0x9A43, 0x9A3E, - 0x9A55, 0x9A4D, 0x9A5B, 0x9A57, 0x9A5F, 0x9A62, 0x9A65, 0x9A64, - 0x9A69, 0x9A6B, 0x9A6A, 0x9AAD, 0x9AB0, 0x9ABC, 0x9AC0, 0x9ACF, - 0x9AD1, 0x9AD3, 0x9AD4, 0x9ADE, 0x9ADF, 0x9AE2, 0x9AE3, 0x9AE6, - 0x9AEF, 0x9AEB, 0x9AEE, 0x9AF4, 0x9AF1, 0x9AF7}, - { /* category 82 */ - 0x9AFB, 0x9B06, 0x9B18, 0x9B1A, 0x9B1F, 0x9B22, 0x9B23, 0x9B25, - 0x9B27, 0x9B28, 0x9B29, 0x9B2A, 0x9B2E, 0x9B2F, 0x9B32, 0x9B44, - 0x9B43, 0x9B4F, 0x9B4D, 0x9B4E, 0x9B51, 0x9B58, 0x9B74, 0x9B93, - 0x9B83, 0x9B91, 0x9B96, 0x9B97, 0x9B9F, 0x9BA0, 0x9BA8, 0x9BB4, - 0x9BC0, 0x9BCA, 0x9BB9, 0x9BC6, 0x9BCF, 0x9BD1, 0x9BD2, 0x9BE3, - 0x9BE2, 0x9BE4, 0x9BD4, 0x9BE1, 0x9C3A, 0x9BF2, 0x9BF1, 0x9BF0, - 0x9C15, 0x9C14, 0x9C09, 0x9C13, 0x9C0C, 0x9C06, 0x9C08, 0x9C12, - 0x9C0A, 0x9C04, 0x9C2E, 0x9C1B, 0x9C25, 0x9C24, 0x9C21, 0x9C30, - 0x9C47, 0x9C32, 0x9C46, 0x9C3E, 0x9C5A, 0x9C60, 0x9C67, 0x9C76, - 0x9C78, 0x9CE7, 0x9CEC, 0x9CF0, 0x9D09, 0x9D08, 0x9CEB, 0x9D03, - 0x9D06, 0x9D2A, 0x9D26, 0x9DAF, 0x9D23, 0x9D1F, 0x9D44, 0x9D15, - 0x9D12, 0x9D41, 0x9D3F, 0x9D3E, 0x9D46, 0x9D48}, - { /* category 83 */ - 0x9D5D, 0x9D5E, 0x9D64, 0x9D51, 0x9D50, 0x9D59, 0x9D72, 0x9D89, - 0x9D87, 0x9DAB, 0x9D6F, 0x9D7A, 0x9D9A, 0x9DA4, 0x9DA9, 0x9DB2, - 0x9DC4, 0x9DC1, 0x9DBB, 0x9DB8, 0x9DBA, 0x9DC6, 0x9DCF, 0x9DC2, - 0x9DD9, 0x9DD3, 0x9DF8, 0x9DE6, 0x9DED, 0x9DEF, 0x9DFD, 0x9E1A, - 0x9E1B, 0x9E1E, 0x9E75, 0x9E79, 0x9E7D, 0x9E81, 0x9E88, 0x9E8B, - 0x9E8C, 0x9E92, 0x9E95, 0x9E91, 0x9E9D, 0x9EA5, 0x9EA9, 0x9EB8, - 0x9EAA, 0x9EAD, 0x9761, 0x9ECC, 0x9ECE, 0x9ECF, 0x9ED0, 0x9ED4, - 0x9EDC, 0x9EDE, 0x9EDD, 0x9EE0, 0x9EE5, 0x9EE8, 0x9EEF, 0x9EF4, - 0x9EF6, 0x9EF7, 0x9EF9, 0x9EFB, 0x9EFC, 0x9EFD, 0x9F07, 0x9F08, - 0x76B7, 0x9F15, 0x9F21, 0x9F2C, 0x9F3E, 0x9F4A, 0x9F52, 0x9F54, - 0x9F63, 0x9F5F, 0x9F60, 0x9F61, 0x9F66, 0x9F67, 0x9F6C, 0x9F6A, - 0x9F77, 0x9F72, 0x9F76, 0x9F95, 0x9F9C, 0x9FA0}, - { /* category 84 */ - 0x582F, 0x69C7, 0x9059, 0x7464, 0x51DC, 0x7199, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 85 */ - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 86 */ - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 87 */ - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 88 */ - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, - { /* category 89 */ - 0x7E8A, 0x891C, 0x9348, 0x9288, 0x84DC, 0x4FC9, 0x70BB, 0x6631, - 0x68C8, 0x92F9, 0x66FB, 0x5F45, 0x4E28, 0x4EE1, 0x4EFC, 0x4F00, - 0x4F03, 0x4F39, 0x4F56, 0x4F92, 0x4F8A, 0x4F9A, 0x4F94, 0x4FCD, - 0x5040, 0x5022, 0x4FFF, 0x501E, 0x5046, 0x5070, 0x5042, 0x5094, - 0x50F4, 0x50D8, 0x514A, 0x5164, 0x519D, 0x51BE, 0x51EC, 0x5215, - 0x529C, 0x52A6, 0x52C0, 0x52DB, 0x5300, 0x5307, 0x5324, 0x5372, - 0x5393, 0x53B2, 0x53DD, 0xFA0E, 0x549C, 0x548A, 0x54A9, 0x54FF, - 0x5586, 0x5759, 0x5765, 0x57AC, 0x57C8, 0x57C7, 0xFA0F, 0xFA10, - 0x589E, 0x58B2, 0x590B, 0x5953, 0x595B, 0x595D, 0x5963, 0x59A4, - 0x59BA, 0x5B56, 0x5BC0, 0x752F, 0x5BD8, 0x5BEC, 0x5C1E, 0x5CA6, - 0x5CBA, 0x5CF5, 0x5D27, 0x5D53, 0xFA11, 0x5D42, 0x5D6D, 0x5DB8, - 0x5DB9, 0x5DD0, 0x5F21, 0x5F34, 0x5F67, 0x5FB7}, - { /* category 90 */ - 0x5FDE, 0x605D, 0x6085, 0x608A, 0x60DE, 0x60D5, 0x6120, 0x60F2, - 0x6111, 0x6137, 0x6130, 0x6198, 0x6213, 0x62A6, 0x63F5, 0x6460, - 0x649D, 0x64CE, 0x654E, 0x6600, 0x6615, 0x663B, 0x6609, 0x662E, - 0x661E, 0x6624, 0x6665, 0x6657, 0x6659, 0xFA12, 0x6673, 0x6699, - 0x66A0, 0x66B2, 0x66BF, 0x66FA, 0x670E, 0xF929, 0x6766, 0x67BB, - 0x6852, 0x67C0, 0x6801, 0x6844, 0x68CF, 0xFA13, 0x6968, 0xFA14, - 0x6998, 0x69E2, 0x6A30, 0x6A6B, 0x6A46, 0x6A73, 0x6A7E, 0x6AE2, - 0x6AE4, 0x6BD6, 0x6C3F, 0x6C5C, 0x6C86, 0x6C6F, 0x6CDA, 0x6D04, - 0x6D87, 0x6D6F, 0x6D96, 0x6DAC, 0x6DCF, 0x6DF8, 0x6DF2, 0x6DFC, - 0x6E39, 0x6E5C, 0x6E27, 0x6E3C, 0x6EBF, 0x6F88, 0x6FB5, 0x6FF5, - 0x7005, 0x7007, 0x7028, 0x7085, 0x70AB, 0x710F, 0x7104, 0x715C, - 0x7146, 0x7147, 0xFA15, 0x71C1, 0x71FE, 0x72B1}, - { /* category 91 */ - 0x72BE, 0x7324, 0xFA16, 0x7377, 0x73BD, 0x73C9, 0x73D6, 0x73E3, - 0x73D2, 0x7407, 0x73F5, 0x7426, 0x742A, 0x7429, 0x742E, 0x7462, - 0x7489, 0x749F, 0x7501, 0x756F, 0x7682, 0x769C, 0x769E, 0x769B, - 0x76A6, 0xFA17, 0x7746, 0x52AF, 0x7821, 0x784E, 0x7864, 0x787A, - 0x7930, 0xFA18, 0xFA19, 0xFA1A, 0x7994, 0xFA1B, 0x799B, 0x7AD1, - 0x7AE7, 0xFA1C, 0x7AEB, 0x7B9E, 0xFA1D, 0x7D48, 0x7D5C, 0x7DB7, - 0x7DA0, 0x7DD6, 0x7E52, 0x7F47, 0x7FA1, 0xFA1E, 0x8301, 0x8362, - 0x837F, 0x83C7, 0x83F6, 0x8448, 0x84B4, 0x8553, 0x8559, 0x856B, - 0xFA1F, 0x85B0, 0xFA20, 0xFA21, 0x8807, 0x88F5, 0x8A12, 0x8A37, - 0x8A79, 0x8AA7, 0x8ABE, 0x8ADF, 0xFA22, 0x8AF6, 0x8B53, 0x8B7F, - 0x8CF0, 0x8CF4, 0x8D12, 0x8D76, 0xFA23, 0x8ECF, 0xFA24, 0xFA25, - 0x9067, 0x90DE, 0xFA26, 0x9115, 0x9127, 0x91DA}, - { /* category 92 */ - 0x91D7, 0x91DE, 0x91ED, 0x91EE, 0x91E4, 0x91E5, 0x9206, 0x9210, - 0x920A, 0x923A, 0x9240, 0x923C, 0x924E, 0x9259, 0x9251, 0x9239, - 0x9267, 0x92A7, 0x9277, 0x9278, 0x92E7, 0x92D7, 0x92D9, 0x92D0, - 0xFA27, 0x92D5, 0x92E0, 0x92D3, 0x9325, 0x9321, 0x92FB, 0xFA28, - 0x931E, 0x92FF, 0x931D, 0x9302, 0x9370, 0x9357, 0x93A4, 0x93C6, - 0x93DE, 0x93F8, 0x9431, 0x9445, 0x9448, 0x9592, 0xF9DC, 0xFA29, - 0x969D, 0x96AF, 0x9733, 0x973B, 0x9743, 0x974D, 0x974F, 0x9751, - 0x9755, 0x9857, 0x9865, 0xFA2A, 0xFA2B, 0x9927, 0xFA2C, 0x999E, - 0x9A4E, 0x9AD9, 0x9ADC, 0x9B75, 0x9B72, 0x9B8F, 0x9BB1, 0x9BBB, - 0x9C00, 0x9D70, 0x9D6B, 0xFA2D, 0x9E19, 0x9ED1, 0x0000, 0x0000, - 0x2170, 0x2171, 0x2172, 0x2173, 0x2174, 0x2175, 0x2176, 0x2177, - 0x2178, 0x2179, 0xFFE2, 0xFFE4, 0xFF07, 0xFF02} -}; - -#endif /* JISX0208_H */ diff --git a/collects/plot/src/all/png.c b/collects/plot/src/all/png.c deleted file mode 100644 index 2a55ccb798..0000000000 --- a/collects/plot/src/all/png.c +++ /dev/null @@ -1,805 +0,0 @@ - -/* png.c - location for general purpose libpng functions - * - * libpng version 1.2.5 - October 3, 2002 - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - */ - -#define PNG_INTERNAL -#define PNG_NO_EXTERN -#include "png.h" - -/* Generate a compiler error if there is an old png.h in the search path. */ -typedef version_1_2_5 Your_png_h_is_not_version_1_2_5; - -/* Version information for C files. This had better match the version - * string defined in png.h. */ - -#ifdef PNG_USE_GLOBAL_ARRAYS -/* png_libpng_ver was changed to a function in version 1.0.5c */ -const char png_libpng_ver[18] = "1.2.5"; - -/* png_sig was changed to a function in version 1.0.5c */ -/* Place to hold the signature string for a PNG file. */ -const png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10}; - -/* Invoke global declarations for constant strings for known chunk types */ -PNG_IHDR; -PNG_IDAT; -PNG_IEND; -PNG_PLTE; -PNG_bKGD; -PNG_cHRM; -PNG_gAMA; -PNG_hIST; -PNG_iCCP; -PNG_iTXt; -PNG_oFFs; -PNG_pCAL; -PNG_sCAL; -PNG_pHYs; -PNG_sBIT; -PNG_sPLT; -PNG_sRGB; -PNG_tEXt; -PNG_tIME; -PNG_tRNS; -PNG_zTXt; - -/* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - -/* start of interlace block */ -const int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; - -/* offset to next interlace block */ -const int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; - -/* start of interlace block in the y direction */ -const int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1}; - -/* offset to next interlace block in the y direction */ -const int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2}; - -/* width of interlace block (used in assembler routines only) */ -#ifdef PNG_HAVE_ASSEMBLER_COMBINE_ROW -const int FARDATA png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; -#endif - -/* Height of interlace block. This is not currently used - if you need - * it, uncomment it here and in png.h -const int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1}; -*/ - -/* Mask to determine which pixels are valid in a pass */ -const int FARDATA png_pass_mask[] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff}; - -/* Mask to determine which pixels to overwrite while displaying */ -const int FARDATA png_pass_dsp_mask[] - = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff}; - -#endif - -/* Tells libpng that we have already handled the first "num_bytes" bytes - * of the PNG file signature. If the PNG data is embedded into another - * stream we can set num_bytes = 8 so that libpng will not attempt to read - * or write any of the magic bytes before it starts on the IHDR. - */ - -void PNGAPI -png_set_sig_bytes(png_structp png_ptr, int num_bytes) -{ - png_debug(1, "in png_set_sig_bytes\n"); - if (num_bytes > 8) - png_error(png_ptr, "Too many bytes for PNG signature."); - - png_ptr->sig_bytes = (png_byte)(num_bytes < 0 ? 0 : num_bytes); -} - -/* Checks whether the supplied bytes match the PNG signature. We allow - * checking less than the full 8-byte signature so that those apps that - * already read the first few bytes of a file to determine the file type - * can simply check the remaining bytes for extra assurance. Returns - * an integer less than, equal to, or greater than zero if sig is found, - * respectively, to be less than, to match, or be greater than the correct - * PNG signature (this is the same behaviour as strcmp, memcmp, etc). - */ -int PNGAPI -png_sig_cmp(png_bytep sig, png_size_t start, png_size_t num_to_check) -{ - png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10}; - if (num_to_check > 8) - num_to_check = 8; - else if (num_to_check < 1) - return (0); - - if (start > 7) - return (0); - - if (start + num_to_check > 8) - num_to_check = 8 - start; - - return ((int)(png_memcmp(&sig[start], &png_signature[start], num_to_check))); -} - -/* (Obsolete) function to check signature bytes. It does not allow one - * to check a partial signature. This function might be removed in the - * future - use png_sig_cmp(). Returns true (nonzero) if the file is a PNG. - */ -int PNGAPI -png_check_sig(png_bytep sig, int num) -{ - return ((int)!png_sig_cmp(sig, (png_size_t)0, (png_size_t)num)); -} - -/* Function to allocate memory for zlib and clear it to 0. */ -#ifdef PNG_1_0_X -voidpf PNGAPI -#else -voidpf /* private */ -#endif -png_zalloc(voidpf png_ptr, uInt items, uInt size) -{ - png_uint_32 num_bytes = (png_uint_32)items * size; - png_voidp ptr; - png_structp p=png_ptr; - png_uint_32 save_flags=p->flags; - - p->flags|=PNG_FLAG_MALLOC_NULL_MEM_OK; - ptr = (png_voidp)png_malloc((png_structp)png_ptr, num_bytes); - p->flags=save_flags; - -#ifndef PNG_NO_ZALLOC_ZERO - if (ptr == NULL) - return ((voidpf)ptr); - - if (num_bytes > (png_uint_32)0x8000L) - { - png_memset(ptr, 0, (png_size_t)0x8000L); - png_memset((png_bytep)ptr + (png_size_t)0x8000L, 0, - (png_size_t)(num_bytes - (png_uint_32)0x8000L)); - } - else - { - png_memset(ptr, 0, (png_size_t)num_bytes); - } -#endif - return ((voidpf)ptr); -} - -/* function to free memory for zlib */ -#ifdef PNG_1_0_X -void PNGAPI -#else -void /* private */ -#endif -png_zfree(voidpf png_ptr, voidpf ptr) -{ - png_free((png_structp)png_ptr, (png_voidp)ptr); -} - -/* Reset the CRC variable to 32 bits of 1's. Care must be taken - * in case CRC is > 32 bits to leave the top bits 0. - */ -void /* PRIVATE */ -png_reset_crc(png_structp png_ptr) -{ - png_ptr->crc = crc32(0, Z_NULL, 0); -} - -/* Calculate the CRC over a section of data. We can only pass as - * much data to this routine as the largest single buffer size. We - * also check that this data will actually be used before going to the - * trouble of calculating it. - */ -void /* PRIVATE */ -png_calculate_crc(png_structp png_ptr, png_bytep ptr, png_size_t length) -{ - int need_crc = 1; - - if (png_ptr->chunk_name[0] & 0x20) /* ancillary */ - { - if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) == - (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN)) - need_crc = 0; - } - else /* critical */ - { - if (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE) - need_crc = 0; - } - - if (need_crc) - png_ptr->crc = crc32(png_ptr->crc, ptr, (uInt)length); -} - -/* Allocate the memory for an info_struct for the application. We don't - * really need the png_ptr, but it could potentially be useful in the - * future. This should be used in favour of malloc(sizeof(png_info)) - * and png_info_init() so that applications that want to use a shared - * libpng don't have to be recompiled if png_info changes size. - */ -png_infop PNGAPI -png_create_info_struct(png_structp png_ptr) -{ - png_infop info_ptr; - - png_debug(1, "in png_create_info_struct\n"); - if(png_ptr == NULL) return (NULL); -#ifdef PNG_USER_MEM_SUPPORTED - info_ptr = (png_infop)png_create_struct_2(PNG_STRUCT_INFO, - png_ptr->malloc_fn, png_ptr->mem_ptr); -#else - info_ptr = (png_infop)png_create_struct(PNG_STRUCT_INFO); -#endif - if (info_ptr != NULL) - png_info_init_3(&info_ptr, sizeof(png_info)); - - return (info_ptr); -} - -/* This function frees the memory associated with a single info struct. - * Normally, one would use either png_destroy_read_struct() or - * png_destroy_write_struct() to free an info struct, but this may be - * useful for some applications. - */ -void PNGAPI -png_destroy_info_struct(png_structp png_ptr, png_infopp info_ptr_ptr) -{ - png_infop info_ptr = NULL; - - png_debug(1, "in png_destroy_info_struct\n"); - if (info_ptr_ptr != NULL) - info_ptr = *info_ptr_ptr; - - if (info_ptr != NULL) - { - png_info_destroy(png_ptr, info_ptr); - -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)info_ptr, png_ptr->free_fn, - png_ptr->mem_ptr); -#else - png_destroy_struct((png_voidp)info_ptr); -#endif - *info_ptr_ptr = NULL; - } -} - -/* Initialize the info structure. This is now an internal function (0.89) - * and applications using it are urged to use png_create_info_struct() - * instead. - */ -#undef png_info_init -void PNGAPI -png_info_init(png_infop info_ptr) -{ - /* We only come here via pre-1.0.12-compiled applications */ - png_info_init_3(&info_ptr, 0); -} - -void PNGAPI -png_info_init_3(png_infopp ptr_ptr, png_size_t png_info_struct_size) -{ - png_infop info_ptr = *ptr_ptr; - - png_debug(1, "in png_info_init_3\n"); - - if(sizeof(png_info) > png_info_struct_size) - { - png_destroy_struct(info_ptr); - info_ptr = (png_infop)png_create_struct(PNG_STRUCT_INFO); - *ptr_ptr = info_ptr; - } - - /* set everything to 0 */ - png_memset(info_ptr, 0, sizeof (png_info)); -} - -#ifdef PNG_FREE_ME_SUPPORTED -void PNGAPI -png_data_freer(png_structp png_ptr, png_infop info_ptr, - int freer, png_uint_32 mask) -{ - png_debug(1, "in png_data_freer\n"); - if (png_ptr == NULL || info_ptr == NULL) - return; - if(freer == PNG_DESTROY_WILL_FREE_DATA) - info_ptr->free_me |= mask; - else if(freer == PNG_USER_WILL_FREE_DATA) - info_ptr->free_me &= ~mask; - else - png_warning(png_ptr, - "Unknown freer parameter in png_data_freer."); -} -#endif - -void PNGAPI -png_free_data(png_structp png_ptr, png_infop info_ptr, png_uint_32 mask, - int num) -{ - png_debug(1, "in png_free_data\n"); - if (png_ptr == NULL || info_ptr == NULL) - return; - -#if defined(PNG_TEXT_SUPPORTED) -/* free text item num or (if num == -1) all text items */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_TEXT) & info_ptr->free_me) -#else -if (mask & PNG_FREE_TEXT) -#endif -{ - if (num != -1) - { - if (info_ptr->text && info_ptr->text[num].key) - { - png_free(png_ptr, info_ptr->text[num].key); - info_ptr->text[num].key = NULL; - } - } - else - { - int i; - for (i = 0; i < info_ptr->num_text; i++) - png_free_data(png_ptr, info_ptr, PNG_FREE_TEXT, i); - png_free(png_ptr, info_ptr->text); - info_ptr->text = NULL; - info_ptr->num_text=0; - } -} -#endif - -#if defined(PNG_tRNS_SUPPORTED) -/* free any tRNS entry */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_TRNS) & info_ptr->free_me) -#else -if ((mask & PNG_FREE_TRNS) && (png_ptr->flags & PNG_FLAG_FREE_TRNS)) -#endif -{ - png_free(png_ptr, info_ptr->trans); - info_ptr->valid &= ~PNG_INFO_tRNS; -#ifndef PNG_FREE_ME_SUPPORTED - png_ptr->flags &= ~PNG_FLAG_FREE_TRNS; -#endif - info_ptr->trans = NULL; -} -#endif - -#if defined(PNG_sCAL_SUPPORTED) -/* free any sCAL entry */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_SCAL) & info_ptr->free_me) -#else -if (mask & PNG_FREE_SCAL) -#endif -{ -#if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED) - png_free(png_ptr, info_ptr->scal_s_width); - png_free(png_ptr, info_ptr->scal_s_height); - info_ptr->scal_s_width = NULL; - info_ptr->scal_s_height = NULL; -#endif - info_ptr->valid &= ~PNG_INFO_sCAL; -} -#endif - -#if defined(PNG_pCAL_SUPPORTED) -/* free any pCAL entry */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_PCAL) & info_ptr->free_me) -#else -if (mask & PNG_FREE_PCAL) -#endif -{ - png_free(png_ptr, info_ptr->pcal_purpose); - png_free(png_ptr, info_ptr->pcal_units); - info_ptr->pcal_purpose = NULL; - info_ptr->pcal_units = NULL; - if (info_ptr->pcal_params != NULL) - { - int i; - for (i = 0; i < (int)info_ptr->pcal_nparams; i++) - { - png_free(png_ptr, info_ptr->pcal_params[i]); - info_ptr->pcal_params[i]=NULL; - } - png_free(png_ptr, info_ptr->pcal_params); - info_ptr->pcal_params = NULL; - } - info_ptr->valid &= ~PNG_INFO_pCAL; -} -#endif - -#if defined(PNG_iCCP_SUPPORTED) -/* free any iCCP entry */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_ICCP) & info_ptr->free_me) -#else -if (mask & PNG_FREE_ICCP) -#endif -{ - png_free(png_ptr, info_ptr->iccp_name); - png_free(png_ptr, info_ptr->iccp_profile); - info_ptr->iccp_name = NULL; - info_ptr->iccp_profile = NULL; - info_ptr->valid &= ~PNG_INFO_iCCP; -} -#endif - -#if defined(PNG_sPLT_SUPPORTED) -/* free a given sPLT entry, or (if num == -1) all sPLT entries */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_SPLT) & info_ptr->free_me) -#else -if (mask & PNG_FREE_SPLT) -#endif -{ - if (num != -1) - { - if(info_ptr->splt_palettes) - { - png_free(png_ptr, info_ptr->splt_palettes[num].name); - png_free(png_ptr, info_ptr->splt_palettes[num].entries); - info_ptr->splt_palettes[num].name = NULL; - info_ptr->splt_palettes[num].entries = NULL; - } - } - else - { - if(info_ptr->splt_palettes_num) - { - int i; - for (i = 0; i < (int)info_ptr->splt_palettes_num; i++) - png_free_data(png_ptr, info_ptr, PNG_FREE_SPLT, i); - - png_free(png_ptr, info_ptr->splt_palettes); - info_ptr->splt_palettes = NULL; - info_ptr->splt_palettes_num = 0; - } - info_ptr->valid &= ~PNG_INFO_sPLT; - } -} -#endif - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_UNKN) & info_ptr->free_me) -#else -if (mask & PNG_FREE_UNKN) -#endif -{ - if (num != -1) - { - if(info_ptr->unknown_chunks) - { - png_free(png_ptr, info_ptr->unknown_chunks[num].data); - info_ptr->unknown_chunks[num].data = NULL; - } - } - else - { - int i; - - if(info_ptr->unknown_chunks_num) - { - for (i = 0; i < (int)info_ptr->unknown_chunks_num; i++) - png_free_data(png_ptr, info_ptr, PNG_FREE_UNKN, i); - - png_free(png_ptr, info_ptr->unknown_chunks); - info_ptr->unknown_chunks = NULL; - info_ptr->unknown_chunks_num = 0; - } - } -} -#endif - -#if defined(PNG_hIST_SUPPORTED) -/* free any hIST entry */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_HIST) & info_ptr->free_me) -#else -if ((mask & PNG_FREE_HIST) && (png_ptr->flags & PNG_FLAG_FREE_HIST)) -#endif -{ - png_free(png_ptr, info_ptr->hist); - info_ptr->hist = NULL; - info_ptr->valid &= ~PNG_INFO_hIST; -#ifndef PNG_FREE_ME_SUPPORTED - png_ptr->flags &= ~PNG_FLAG_FREE_HIST; -#endif -} -#endif - -/* free any PLTE entry that was internally allocated */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_PLTE) & info_ptr->free_me) -#else -if ((mask & PNG_FREE_PLTE) && (png_ptr->flags & PNG_FLAG_FREE_PLTE)) -#endif -{ - png_zfree(png_ptr, info_ptr->palette); - info_ptr->palette = NULL; - info_ptr->valid &= ~PNG_INFO_PLTE; -#ifndef PNG_FREE_ME_SUPPORTED - png_ptr->flags &= ~PNG_FLAG_FREE_PLTE; -#endif - info_ptr->num_palette = 0; -} - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -/* free any image bits attached to the info structure */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_ROWS) & info_ptr->free_me) -#else -if (mask & PNG_FREE_ROWS) -#endif -{ - if(info_ptr->row_pointers) - { - int row; - for (row = 0; row < (int)info_ptr->height; row++) - { - png_free(png_ptr, info_ptr->row_pointers[row]); - info_ptr->row_pointers[row]=NULL; - } - png_free(png_ptr, info_ptr->row_pointers); - info_ptr->row_pointers=NULL; - } - info_ptr->valid &= ~PNG_INFO_IDAT; -} -#endif - -#ifdef PNG_FREE_ME_SUPPORTED - if(num == -1) - info_ptr->free_me &= ~mask; - else - info_ptr->free_me &= ~(mask & ~PNG_FREE_MUL); -#endif -} - -/* This is an internal routine to free any memory that the info struct is - * pointing to before re-using it or freeing the struct itself. Recall - * that png_free() checks for NULL pointers for us. - */ -void /* PRIVATE */ -png_info_destroy(png_structp png_ptr, png_infop info_ptr) -{ - png_debug(1, "in png_info_destroy\n"); - - png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1); - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - if (png_ptr->num_chunk_list) - { - png_free(png_ptr, png_ptr->chunk_list); - png_ptr->chunk_list=NULL; - png_ptr->num_chunk_list=0; - } -#endif - - png_info_init_3(&info_ptr, sizeof(png_info)); -} - -/* This function returns a pointer to the io_ptr associated with the user - * functions. The application should free any memory associated with this - * pointer before png_write_destroy() or png_read_destroy() are called. - */ -png_voidp PNGAPI -png_get_io_ptr(png_structp png_ptr) -{ - return (png_ptr->io_ptr); -} - -#if !defined(PNG_NO_STDIO) -/* Initialize the default input/output functions for the PNG file. If you - * use your own read or write routines, you can call either png_set_read_fn() - * or png_set_write_fn() instead of png_init_io(). If you have defined - * PNG_NO_STDIO, you must use a function of your own because "FILE *" isn't - * necessarily available. - */ -void PNGAPI -png_init_io(png_structp png_ptr, png_FILE_p fp) -{ - png_debug(1, "in png_init_io\n"); - png_ptr->io_ptr = (png_voidp)fp; -} -#endif - -#if defined(PNG_TIME_RFC1123_SUPPORTED) -/* Convert the supplied time into an RFC 1123 string suitable for use in - * a "Creation Time" or other text-based time string. - */ -png_charp PNGAPI -png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime) -{ - static PNG_CONST char short_months[12][4] = - {"Jan", "Feb", "Mar", "Apr", "May", "Jun", - "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; - - if (png_ptr->time_buffer == NULL) - { - png_ptr->time_buffer = (png_charp)png_malloc(png_ptr, (png_uint_32)(29* - sizeof(char))); - } - -#if defined(_WIN32_WCE) - { - wchar_t time_buf[29]; - wsprintf(time_buf, TEXT("%d %S %d %02d:%02d:%02d +0000"), - ptime->day % 32, short_months[(ptime->month - 1) % 12], - ptime->year, ptime->hour % 24, ptime->minute % 60, - ptime->second % 61); - WideCharToMultiByte(CP_ACP, 0, time_buf, -1, png_ptr->time_buffer, 29, - NULL, NULL); - } -#else -#ifdef USE_FAR_KEYWORD - { - char near_time_buf[29]; - sprintf(near_time_buf, "%d %s %d %02d:%02d:%02d +0000", - ptime->day % 32, short_months[(ptime->month - 1) % 12], - ptime->year, ptime->hour % 24, ptime->minute % 60, - ptime->second % 61); - png_memcpy(png_ptr->time_buffer, near_time_buf, - 29*sizeof(char)); - } -#else - sprintf(png_ptr->time_buffer, "%d %s %d %02d:%02d:%02d +0000", - ptime->day % 32, short_months[(ptime->month - 1) % 12], - ptime->year, ptime->hour % 24, ptime->minute % 60, - ptime->second % 61); -#endif -#endif /* _WIN32_WCE */ - return ((png_charp)png_ptr->time_buffer); -} -#endif /* PNG_TIME_RFC1123_SUPPORTED */ - -#if 0 -/* Signature string for a PNG file. */ -png_bytep PNGAPI -png_sig_bytes(void) -{ - return ((png_bytep)"\211\120\116\107\015\012\032\012"); -} -#endif - -png_charp PNGAPI -png_get_copyright(png_structp png_ptr) -{ - if (png_ptr != NULL || png_ptr == NULL) /* silence compiler warning */ - return ((png_charp) "\n libpng version 1.2.5 - October 3, 2002\n\ - Copyright (c) 1998-2002 Glenn Randers-Pehrson\n\ - Copyright (c) 1996-1997 Andreas Dilger\n\ - Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n"); - return ((png_charp) ""); -} - -/* The following return the library version as a short string in the - * format 1.0.0 through 99.99.99zz. To get the version of *.h files used - * with your application, print out PNG_LIBPNG_VER_STRING, which is defined - * in png.h. - */ - -png_charp PNGAPI -png_get_libpng_ver(png_structp png_ptr) -{ - /* Version of *.c files used when building libpng */ - if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */ - return((png_charp) "1.2.5"); - return((png_charp) "1.2.5"); -} - -png_charp PNGAPI -png_get_header_ver(png_structp png_ptr) -{ - /* Version of *.h files used when building libpng */ - if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */ - return((png_charp) PNG_LIBPNG_VER_STRING); - return((png_charp) PNG_LIBPNG_VER_STRING); -} - -png_charp PNGAPI -png_get_header_version(png_structp png_ptr) -{ - /* Returns longer string containing both version and date */ - if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */ - return((png_charp) PNG_HEADER_VERSION_STRING); - return((png_charp) PNG_HEADER_VERSION_STRING); -} - -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -int PNGAPI -png_handle_as_unknown(png_structp png_ptr, png_bytep chunk_name) -{ - /* check chunk_name and return "keep" value if it's on the list, else 0 */ - int i; - png_bytep p; - if((png_ptr == NULL && chunk_name == NULL) || png_ptr->num_chunk_list<=0) - return 0; - p=png_ptr->chunk_list+png_ptr->num_chunk_list*5-5; - for (i = png_ptr->num_chunk_list; i; i--, p-=5) - if (!png_memcmp(chunk_name, p, 4)) - return ((int)*(p+4)); - return 0; -} -#endif - -/* This function, added to libpng-1.0.6g, is untested. */ -int PNGAPI -png_reset_zstream(png_structp png_ptr) -{ - return (inflateReset(&png_ptr->zstream)); -} - -/* This function was added to libpng-1.0.7 */ -png_uint_32 PNGAPI -png_access_version_number(void) -{ - /* Version of *.c files used when building libpng */ - return((png_uint_32) 10205L); -} - - -#if !defined(PNG_1_0_X) -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) - /* GRR: could add this: && defined(PNG_MMX_CODE_SUPPORTED) */ -/* this INTERNAL function was added to libpng 1.2.0 */ -void /* PRIVATE */ -png_init_mmx_flags (png_structp png_ptr) -{ - png_ptr->mmx_rowbytes_threshold = 0; - png_ptr->mmx_bitdepth_threshold = 0; - -# if (defined(PNG_USE_PNGVCRD) || defined(PNG_USE_PNGGCCRD)) - - png_ptr->asm_flags |= PNG_ASM_FLAG_MMX_SUPPORT_COMPILED; - - if (png_mmx_support() > 0) { - png_ptr->asm_flags |= PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU -# ifdef PNG_HAVE_ASSEMBLER_COMBINE_ROW - | PNG_ASM_FLAG_MMX_READ_COMBINE_ROW -# endif -# ifdef PNG_HAVE_ASSEMBLER_READ_INTERLACE - | PNG_ASM_FLAG_MMX_READ_INTERLACE -# endif -# ifndef PNG_HAVE_ASSEMBLER_READ_FILTER_ROW - ; -# else - | PNG_ASM_FLAG_MMX_READ_FILTER_SUB - | PNG_ASM_FLAG_MMX_READ_FILTER_UP - | PNG_ASM_FLAG_MMX_READ_FILTER_AVG - | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ; - - png_ptr->mmx_rowbytes_threshold = PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT; - png_ptr->mmx_bitdepth_threshold = PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT; -# endif - } else { - png_ptr->asm_flags &= ~( PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU - | PNG_MMX_READ_FLAGS - | PNG_MMX_WRITE_FLAGS ); - } - -# else /* !((PNGVCRD || PNGGCCRD) && PNG_ASSEMBLER_CODE_SUPPORTED)) */ - - /* clear all MMX flags; no support is compiled in */ - png_ptr->asm_flags &= ~( PNG_MMX_FLAGS ); - -# endif /* ?(PNGVCRD || PNGGCCRD) */ -} - -#endif /* !(PNG_ASSEMBLER_CODE_SUPPORTED) */ - -/* this function was added to libpng 1.2.0 */ -#if !defined(PNG_USE_PNGGCCRD) && \ - !(defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_USE_PNGVCRD)) -int PNGAPI -png_mmx_support(void) -{ - return -1; -} -#endif -#endif /* PNG_1_0_X */ diff --git a/collects/plot/src/all/png.h b/collects/plot/src/all/png.h deleted file mode 100644 index f059910e62..0000000000 --- a/collects/plot/src/all/png.h +++ /dev/null @@ -1,3283 +0,0 @@ -/* png.h - header file for PNG reference library - * - * libpng version 1.2.5 - October 3, 2002 - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * Authors and maintainers: - * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat - * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger - * libpng versions 0.97, January 1998, through 1.2.5 - October 3, 2002: Glenn - * See also "Contributing Authors", below. - * - * Note about libpng version numbers: - * - * Due to various miscommunications, unforeseen code incompatibilities - * and occasional factors outside the authors' control, version numbering - * on the library has not always been consistent and straightforward. - * The following table summarizes matters since version 0.89c, which was - * the first widely used release: - * - * source png.h png.h shared-lib - * version string int version - * ------- ------ ----- ---------- - * 0.89c "1.0 beta 3" 0.89 89 1.0.89 - * 0.90 "1.0 beta 4" 0.90 90 0.90 [should have been 2.0.90] - * 0.95 "1.0 beta 5" 0.95 95 0.95 [should have been 2.0.95] - * 0.96 "1.0 beta 6" 0.96 96 0.96 [should have been 2.0.96] - * 0.97b "1.00.97 beta 7" 1.00.97 97 1.0.1 [should have been 2.0.97] - * 0.97c 0.97 97 2.0.97 - * 0.98 0.98 98 2.0.98 - * 0.99 0.99 98 2.0.99 - * 0.99a-m 0.99 99 2.0.99 - * 1.00 1.00 100 2.1.0 [100 should be 10000] - * 1.0.0 (from here on, the 100 2.1.0 [100 should be 10000] - * 1.0.1 png.h string is 10001 2.1.0 - * 1.0.1a-e identical to the 10002 from here on, the shared library - * 1.0.2 source version) 10002 is 2.V where V is the source code - * 1.0.2a-b 10003 version, except as noted. - * 1.0.3 10003 - * 1.0.3a-d 10004 - * 1.0.4 10004 - * 1.0.4a-f 10005 - * 1.0.5 (+ 2 patches) 10005 - * 1.0.5a-d 10006 - * 1.0.5e-r 10100 (not source compatible) - * 1.0.5s-v 10006 (not binary compatible) - * 1.0.6 (+ 3 patches) 10006 (still binary incompatible) - * 1.0.6d-f 10007 (still binary incompatible) - * 1.0.6g 10007 - * 1.0.6h 10007 10.6h (testing xy.z so-numbering) - * 1.0.6i 10007 10.6i - * 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0) - * 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 (binary compatible) - * 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 (binary compatible) - * 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 (binary compatible) - * 1.0.7 1 10007 (still compatible) - * 1.0.8beta1-4 1 10008 2.1.0.8beta1-4 - * 1.0.8rc1 1 10008 2.1.0.8rc1 - * 1.0.8 1 10008 2.1.0.8 - * 1.0.9beta1-6 1 10009 2.1.0.9beta1-6 - * 1.0.9rc1 1 10009 2.1.0.9rc1 - * 1.0.9beta7-10 1 10009 2.1.0.9beta7-10 - * 1.0.9rc2 1 10009 2.1.0.9rc2 - * 1.0.9 1 10009 2.1.0.9 - * 1.0.10beta1 1 10010 2.1.0.10beta1 - * 1.0.10rc1 1 10010 2.1.0.10rc1 - * 1.0.10 1 10010 2.1.0.10 - * 1.0.11beta1-3 1 10011 2.1.0.11beta1-3 - * 1.0.11rc1 1 10011 2.1.0.11rc1 - * 1.0.11 1 10011 2.1.0.11 - * 1.0.12beta1-2 2 10012 2.1.0.12beta1-2 - * 1.0.12rc1 2 10012 2.1.0.12rc1 - * 1.0.12 2 10012 2.1.0.12 - * 1.1.0a-f - 10100 2.1.1.0a-f (branch abandoned) - * 1.2.0beta1-2 2 10200 2.1.2.0beta1-2 - * 1.2.0beta3-5 3 10200 3.1.2.0beta3-5 - * 1.2.0rc1 3 10200 3.1.2.0rc1 - * 1.2.0 3 10200 3.1.2.0 - * 1.2.1beta1-4 3 10201 3.1.2.1beta1-4 - * 1.2.1rc1-2 3 10201 3.1.2.1rc1-2 - * 1.2.1 3 10201 3.1.2.1 - * 1.2.2beta1-6 12 10202 12.so.0.1.2.2beta1-6 - * 1.0.13beta1 10 10013 10.so.0.1.0.13beta1 - * 1.0.13rc1 10 10013 10.so.0.1.0.13rc1 - * 1.2.2rc1 12 10202 12.so.0.1.2.2rc1 - * 1.0.13 10 10013 10.so.0.1.0.13 - * 1.2.2 12 10202 12.so.0.1.2.2 - * 1.2.3rc1-6 12 10203 12.so.0.1.2.3rc1-6 - * 1.2.3 12 10203 12.so.0.1.2.3 - * 1.2.4beta1-3 13 10204 12.so.0.1.2.4beta1-3 - * 1.0.14rc1 13 10014 10.so.0.1.0.14rc1 - * 1.2.4rc1 13 10204 12.so.0.1.2.4rc1 - * 1.0.14 10 10014 10.so.0.1.0.14 - * 1.2.4 13 10204 12.so.0.1.2.4 - * 1.2.5beta1-2 13 10205 12.so.0.1.2.5beta1-2 - * 1.0.15rc1-3 10 10015 10.so.0.1.0.15rc1-3 - * 1.2.5rc1-3 13 10205 12.so.0.1.2.5rc1-3 - * 1.0.15 10 10015 10.so.0.1.0.15 - * 1.2.5 13 10205 12.so.0.1.2.5 - * - * Henceforth the source version will match the shared-library major - * and minor numbers; the shared-library major version number will be - * used for changes in backward compatibility, as it is intended. The - * PNG_LIBPNG_VER macro, which is not used within libpng but is available - * for applications, is an unsigned integer of the form xyyzz corresponding - * to the source version x.y.z (leading zeros in y and z). Beta versions - * were given the previous public release number plus a letter, until - * version 1.0.6j; from then on they were given the upcoming public - * release number plus "betaNN" or "rcN". - * - * Binary incompatibility exists only when applications make direct access - * to the info_ptr or png_ptr members through png.h, and the compiled - * application is loaded with a different version of the library. - * - * DLLNUM will change each time there are forward or backward changes - * in binary compatibility (e.g., when a new feature is added). - * - * See libpng.txt or libpng.3 for more information. The PNG specification - * is available as RFC 2083 - * and as a W3C Recommendation - */ - -/* - * COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: - * - * If you modify libpng you may insert additional notices immediately following - * this sentence. - * - * libpng versions 1.0.7, July 1, 2000, through 1.2.5, October 3, 2002, are - * Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are - * distributed according to the same disclaimer and license as libpng-1.0.6 - * with the following individuals added to the list of Contributing Authors - * - * Simon-Pierre Cadieux - * Eric S. Raymond - * Gilles Vollant - * - * and with the following additions to the disclaimer: - * - * There is no warranty against interference with your enjoyment of the - * library or against infringement. There is no warranty that our - * efforts or the library will fulfill any of your particular purposes - * or needs. This library is provided with all faults, and the entire - * risk of satisfactory quality, performance, accuracy, and effort is with - * the user. - * - * libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are - * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson - * Distributed according to the same disclaimer and license as libpng-0.96, - * with the following individuals added to the list of Contributing Authors: - * - * Tom Lane - * Glenn Randers-Pehrson - * Willem van Schaik - * - * libpng versions 0.89, June 1996, through 0.96, May 1997, are - * Copyright (c) 1996, 1997 Andreas Dilger - * Distributed according to the same disclaimer and license as libpng-0.88, - * with the following individuals added to the list of Contributing Authors: - * - * John Bowler - * Kevin Bracey - * Sam Bushell - * Magnus Holmgren - * Greg Roelofs - * Tom Tanner - * - * libpng versions 0.5, May 1995, through 0.88, January 1996, are - * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. - * - * For the purposes of this copyright and license, "Contributing Authors" - * is defined as the following set of individuals: - * - * Andreas Dilger - * Dave Martindale - * Guy Eric Schalnat - * Paul Schmidt - * Tim Wegner - * - * The PNG Reference Library is supplied "AS IS". The Contributing Authors - * and Group 42, Inc. disclaim all warranties, expressed or implied, - * including, without limitation, the warranties of merchantability and of - * fitness for any purpose. The Contributing Authors and Group 42, Inc. - * assume no liability for direct, indirect, incidental, special, exemplary, - * or consequential damages, which may result from the use of the PNG - * Reference Library, even if advised of the possibility of such damage. - * - * Permission is hereby granted to use, copy, modify, and distribute this - * source code, or portions hereof, for any purpose, without fee, subject - * to the following restrictions: - * - * 1. The origin of this source code must not be misrepresented. - * - * 2. Altered versions must be plainly marked as such and - * must not be misrepresented as being the original source. - * - * 3. This Copyright notice may not be removed or altered from - * any source or altered source distribution. - * - * The Contributing Authors and Group 42, Inc. specifically permit, without - * fee, and encourage the use of this source code as a component to - * supporting the PNG file format in commercial products. If you use this - * source code in a product, acknowledgment is not required but would be - * appreciated. - */ - -/* - * A "png_get_copyright" function is available, for convenient use in "about" - * boxes and the like: - * - * printf("%s",png_get_copyright(NULL)); - * - * Also, the PNG logo (in PNG format, of course) is supplied in the - * files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31). - */ - -/* - * Libpng is OSI Certified Open Source Software. OSI Certified is a - * certification mark of the Open Source Initiative. - */ - -/* - * The contributing authors would like to thank all those who helped - * with testing, bug fixes, and patience. This wouldn't have been - * possible without all of you. - * - * Thanks to Frank J. T. Wojcik for helping with the documentation. - */ - -/* - * Y2K compliance in libpng: - * ========================= - * - * October 3, 2002 - * - * Since the PNG Development group is an ad-hoc body, we can't make - * an official declaration. - * - * This is your unofficial assurance that libpng from version 0.71 and - * upward through 1.2.5 are Y2K compliant. It is my belief that earlier - * versions were also Y2K compliant. - * - * Libpng only has three year fields. One is a 2-byte unsigned integer - * that will hold years up to 65535. The other two hold the date in text - * format, and will hold years up to 9999. - * - * The integer is - * "png_uint_16 year" in png_time_struct. - * - * The strings are - * "png_charp time_buffer" in png_struct and - * "near_time_buffer", which is a local character string in png.c. - * - * There are seven time-related functions: - * png.c: png_convert_to_rfc_1123() in png.c - * (formerly png_convert_to_rfc_1152() in error) - * png_convert_from_struct_tm() in pngwrite.c, called in pngwrite.c - * png_convert_from_time_t() in pngwrite.c - * png_get_tIME() in pngget.c - * png_handle_tIME() in pngrutil.c, called in pngread.c - * png_set_tIME() in pngset.c - * png_write_tIME() in pngwutil.c, called in pngwrite.c - * - * All handle dates properly in a Y2K environment. The - * png_convert_from_time_t() function calls gmtime() to convert from system - * clock time, which returns (year - 1900), which we properly convert to - * the full 4-digit year. There is a possibility that applications using - * libpng are not passing 4-digit years into the png_convert_to_rfc_1123() - * function, or that they are incorrectly passing only a 2-digit year - * instead of "year - 1900" into the png_convert_from_struct_tm() function, - * but this is not under our control. The libpng documentation has always - * stated that it works with 4-digit years, and the APIs have been - * documented as such. - * - * The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned - * integer to hold the year, and can hold years as large as 65535. - * - * zlib, upon which libpng depends, is also Y2K compliant. It contains - * no date-related code. - * - * Glenn Randers-Pehrson - * libpng maintainer - * PNG Development Group - */ - -#ifndef PNG_H -#define PNG_H - -/* This is not the place to learn how to use libpng. The file libpng.txt - * describes how to use libpng, and the file example.c summarizes it - * with some code on which to build. This file is useful for looking - * at the actual function definitions and structure components. - */ - -/* Version information for png.h - this should match the version in png.c */ -#define PNG_LIBPNG_VER_STRING "1.2.5" - -#define PNG_LIBPNG_VER_SONUM 0 -#define PNG_LIBPNG_VER_DLLNUM %DLLNUM% - -/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ -#define PNG_LIBPNG_VER_MAJOR 1 -#define PNG_LIBPNG_VER_MINOR 2 -#define PNG_LIBPNG_VER_RELEASE 5 -/* This should match the numeric part of the final component of - * PNG_LIBPNG_VER_STRING, omitting any leading zero: */ - -#define PNG_LIBPNG_VER_BUILD 0 - -#define PNG_LIBPNG_BUILD_ALPHA 1 -#define PNG_LIBPNG_BUILD_BETA 2 -#define PNG_LIBPNG_BUILD_RC 3 -#define PNG_LIBPNG_BUILD_STABLE 4 -#define PNG_LIBPNG_BUILD_TYPEMASK 7 -#define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with STABLE only */ -#define PNG_LIBPNG_BUILD_TYPE 4 - -/* Careful here. At one time, Guy wanted to use 082, but that would be octal. - * We must not include leading zeros. - * Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only - * version 1.0.0 was mis-numbered 100 instead of 10000). From - * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release */ -#define PNG_LIBPNG_VER 10205 /* 1.2.5 */ - -#ifndef PNG_VERSION_INFO_ONLY - -/* include the compression library's header */ -#include "zlib.h" - -/* include all user configurable info, including optional assembler routines */ -#include "pngconf.h" - -/* Inhibit C++ name-mangling for libpng functions but not for system calls. */ -#ifdef __cplusplus -extern "C" { -#endif /* __cplusplus */ - -/* This file is arranged in several sections. The first section contains - * structure and type definitions. The second section contains the external - * library functions, while the third has the internal library functions, - * which applications aren't expected to use directly. - */ - -#ifndef PNG_NO_TYPECAST_NULL -#define int_p_NULL (int *)NULL -#define png_bytep_NULL (png_bytep)NULL -#define png_bytepp_NULL (png_bytepp)NULL -#define png_doublep_NULL (png_doublep)NULL -#define png_error_ptr_NULL (png_error_ptr)NULL -#define png_flush_ptr_NULL (png_flush_ptr)NULL -#define png_free_ptr_NULL (png_free_ptr)NULL -#define png_infopp_NULL (png_infopp)NULL -#define png_malloc_ptr_NULL (png_malloc_ptr)NULL -#define png_read_status_ptr_NULL (png_read_status_ptr)NULL -#define png_rw_ptr_NULL (png_rw_ptr)NULL -#define png_structp_NULL (png_structp)NULL -#define png_uint_16p_NULL (png_uint_16p)NULL -#define png_voidp_NULL (png_voidp)NULL -#define png_write_status_ptr_NULL (png_write_status_ptr)NULL -#else -#define int_p_NULL NULL -#define png_bytep_NULL NULL -#define png_bytepp_NULL NULL -#define png_doublep_NULL NULL -#define png_error_ptr_NULL NULL -#define png_flush_ptr_NULL NULL -#define png_free_ptr_NULL NULL -#define png_infopp_NULL NULL -#define png_malloc_ptr_NULL NULL -#define png_read_status_ptr_NULL NULL -#define png_rw_ptr_NULL NULL -#define png_structp_NULL NULL -#define png_uint_16p_NULL NULL -#define png_voidp_NULL NULL -#define png_write_status_ptr_NULL NULL -#endif - -/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */ -#if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN) -/* Version information for C files, stored in png.c. This had better match - * the version above. - */ -#ifdef PNG_USE_GLOBAL_ARRAYS -PNG_EXPORT_VAR (const char) png_libpng_ver[18]; - /* need room for 99.99.99beta99z */ -#else -#define png_libpng_ver png_get_header_ver(NULL) -#endif - -#ifdef PNG_USE_GLOBAL_ARRAYS -/* This was removed in version 1.0.5c */ -/* Structures to facilitate easy interlacing. See png.c for more details */ -PNG_EXPORT_VAR (const int FARDATA) png_pass_start[7]; -PNG_EXPORT_VAR (const int FARDATA) png_pass_inc[7]; -PNG_EXPORT_VAR (const int FARDATA) png_pass_ystart[7]; -PNG_EXPORT_VAR (const int FARDATA) png_pass_yinc[7]; -PNG_EXPORT_VAR (const int FARDATA) png_pass_mask[7]; -PNG_EXPORT_VAR (const int FARDATA) png_pass_dsp_mask[7]; -#ifdef PNG_HAVE_ASSEMBLER_COMBINE_ROW -PNG_EXPORT_VAR (const int FARDATA) png_pass_width[7]; -#endif -/* This isn't currently used. If you need it, see png.c for more details. -PNG_EXPORT_VAR (const int FARDATA) png_pass_height[7]; -*/ -#endif - -#endif /* PNG_NO_EXTERN */ - -/* Three color definitions. The order of the red, green, and blue, (and the - * exact size) is not important, although the size of the fields need to - * be png_byte or png_uint_16 (as defined below). - */ -typedef struct png_color_struct -{ - png_byte red; - png_byte green; - png_byte blue; -} png_color; -typedef png_color FAR * png_colorp; -typedef png_color FAR * FAR * png_colorpp; - -typedef struct png_color_16_struct -{ - png_byte index; /* used for palette files */ - png_uint_16 red; /* for use in red green blue files */ - png_uint_16 green; - png_uint_16 blue; - png_uint_16 gray; /* for use in grayscale files */ -} png_color_16; -typedef png_color_16 FAR * png_color_16p; -typedef png_color_16 FAR * FAR * png_color_16pp; - -typedef struct png_color_8_struct -{ - png_byte red; /* for use in red green blue files */ - png_byte green; - png_byte blue; - png_byte gray; /* for use in grayscale files */ - png_byte alpha; /* for alpha channel files */ -} png_color_8; -typedef png_color_8 FAR * png_color_8p; -typedef png_color_8 FAR * FAR * png_color_8pp; - -/* - * The following two structures are used for the in-core representation - * of sPLT chunks. - */ -typedef struct png_sPLT_entry_struct -{ - png_uint_16 red; - png_uint_16 green; - png_uint_16 blue; - png_uint_16 alpha; - png_uint_16 frequency; -} png_sPLT_entry; -typedef png_sPLT_entry FAR * png_sPLT_entryp; -typedef png_sPLT_entry FAR * FAR * png_sPLT_entrypp; - -/* When the depth of the sPLT palette is 8 bits, the color and alpha samples - * occupy the LSB of their respective members, and the MSB of each member - * is zero-filled. The frequency member always occupies the full 16 bits. - */ - -typedef struct png_sPLT_struct -{ - png_charp name; /* palette name */ - png_byte depth; /* depth of palette samples */ - png_sPLT_entryp entries; /* palette entries */ - png_int_32 nentries; /* number of palette entries */ -} png_sPLT_t; -typedef png_sPLT_t FAR * png_sPLT_tp; -typedef png_sPLT_t FAR * FAR * png_sPLT_tpp; - -#ifdef PNG_TEXT_SUPPORTED -/* png_text holds the contents of a text/ztxt/itxt chunk in a PNG file, - * and whether that contents is compressed or not. The "key" field - * points to a regular zero-terminated C string. The "text", "lang", and - * "lang_key" fields can be regular C strings, empty strings, or NULL pointers. - * However, the * structure returned by png_get_text() will always contain - * regular zero-terminated C strings (possibly empty), never NULL pointers, - * so they can be safely used in printf() and other string-handling functions. - */ -typedef struct png_text_struct -{ - int compression; /* compression value: - -1: tEXt, none - 0: zTXt, deflate - 1: iTXt, none - 2: iTXt, deflate */ - png_charp key; /* keyword, 1-79 character description of "text" */ - png_charp text; /* comment, may be an empty string (ie "") - or a NULL pointer */ - png_size_t text_length; /* length of the text string */ -#ifdef PNG_iTXt_SUPPORTED - png_size_t itxt_length; /* length of the itxt string */ - png_charp lang; /* language code, 0-79 characters - or a NULL pointer */ - png_charp lang_key; /* keyword translated UTF-8 string, 0 or more - chars or a NULL pointer */ -#endif -} png_text; -typedef png_text FAR * png_textp; -typedef png_text FAR * FAR * png_textpp; -#endif - -/* Supported compression types for text in PNG files (tEXt, and zTXt). - * The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed. */ -#define PNG_TEXT_COMPRESSION_NONE_WR -3 -#define PNG_TEXT_COMPRESSION_zTXt_WR -2 -#define PNG_TEXT_COMPRESSION_NONE -1 -#define PNG_TEXT_COMPRESSION_zTXt 0 -#define PNG_ITXT_COMPRESSION_NONE 1 -#define PNG_ITXT_COMPRESSION_zTXt 2 -#define PNG_TEXT_COMPRESSION_LAST 3 /* Not a valid value */ - -/* png_time is a way to hold the time in an machine independent way. - * Two conversions are provided, both from time_t and struct tm. There - * is no portable way to convert to either of these structures, as far - * as I know. If you know of a portable way, send it to me. As a side - * note - PNG has always been Year 2000 compliant! - */ -typedef struct png_time_struct -{ - png_uint_16 year; /* full year, as in, 1995 */ - png_byte month; /* month of year, 1 - 12 */ - png_byte day; /* day of month, 1 - 31 */ - png_byte hour; /* hour of day, 0 - 23 */ - png_byte minute; /* minute of hour, 0 - 59 */ - png_byte second; /* second of minute, 0 - 60 (for leap seconds) */ -} png_time; -typedef png_time FAR * png_timep; -typedef png_time FAR * FAR * png_timepp; - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -/* png_unknown_chunk is a structure to hold queued chunks for which there is - * no specific support. The idea is that we can use this to queue - * up private chunks for output even though the library doesn't actually - * know about their semantics. - */ -typedef struct png_unknown_chunk_t -{ - png_byte name[5]; - png_byte *data; - png_size_t size; - - /* libpng-using applications should NOT directly modify this byte. */ - png_byte location; /* mode of operation at read time */ -} -png_unknown_chunk; -typedef png_unknown_chunk FAR * png_unknown_chunkp; -typedef png_unknown_chunk FAR * FAR * png_unknown_chunkpp; -#endif - -/* png_info is a structure that holds the information in a PNG file so - * that the application can find out the characteristics of the image. - * If you are reading the file, this structure will tell you what is - * in the PNG file. If you are writing the file, fill in the information - * you want to put into the PNG file, then call png_write_info(). - * The names chosen should be very close to the PNG specification, so - * consult that document for information about the meaning of each field. - * - * With libpng < 0.95, it was only possible to directly set and read the - * the values in the png_info_struct, which meant that the contents and - * order of the values had to remain fixed. With libpng 0.95 and later, - * however, there are now functions that abstract the contents of - * png_info_struct from the application, so this makes it easier to use - * libpng with dynamic libraries, and even makes it possible to use - * libraries that don't have all of the libpng ancillary chunk-handing - * functionality. - * - * In any case, the order of the parameters in png_info_struct should NOT - * be changed for as long as possible to keep compatibility with applications - * that use the old direct-access method with png_info_struct. - * - * The following members may have allocated storage attached that should be - * cleaned up before the structure is discarded: palette, trans, text, - * pcal_purpose, pcal_units, pcal_params, hist, iccp_name, iccp_profile, - * splt_palettes, scal_unit, row_pointers, and unknowns. By default, these - * are automatically freed when the info structure is deallocated, if they were - * allocated internally by libpng. This behavior can be changed by means - * of the png_data_freer() function. - * - * More allocation details: all the chunk-reading functions that - * change these members go through the corresponding png_set_* - * functions. A function to clear these members is available: see - * png_free_data(). The png_set_* functions do not depend on being - * able to point info structure members to any of the storage they are - * passed (they make their own copies), EXCEPT that the png_set_text - * functions use the same storage passed to them in the text_ptr or - * itxt_ptr structure argument, and the png_set_rows and png_set_unknowns - * functions do not make their own copies. - */ -typedef struct png_info_struct -{ - /* the following are necessary for every PNG file */ - png_uint_32 width; /* width of image in pixels (from IHDR) */ - png_uint_32 height; /* height of image in pixels (from IHDR) */ - png_uint_32 valid; /* valid chunk data (see PNG_INFO_ below) */ - png_uint_32 rowbytes; /* bytes needed to hold an untransformed row */ - png_colorp palette; /* array of color values (valid & PNG_INFO_PLTE) */ - png_uint_16 num_palette; /* number of color entries in "palette" (PLTE) */ - png_uint_16 num_trans; /* number of transparent palette color (tRNS) */ - png_byte bit_depth; /* 1, 2, 4, 8, or 16 bits/channel (from IHDR) */ - png_byte color_type; /* see PNG_COLOR_TYPE_ below (from IHDR) */ - /* The following three should have been named *_method not *_type */ - png_byte compression_type; /* must be PNG_COMPRESSION_TYPE_BASE (IHDR) */ - png_byte filter_type; /* must be PNG_FILTER_TYPE_BASE (from IHDR) */ - png_byte interlace_type; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */ - - /* The following is informational only on read, and not used on writes. */ - png_byte channels; /* number of data channels per pixel (1, 2, 3, 4) */ - png_byte pixel_depth; /* number of bits per pixel */ - png_byte spare_byte; /* to align the data, and for future use */ - png_byte signature[8]; /* magic bytes read by libpng from start of file */ - - /* The rest of the data is optional. If you are reading, check the - * valid field to see if the information in these are valid. If you - * are writing, set the valid field to those chunks you want written, - * and initialize the appropriate fields below. - */ - -#if defined(PNG_gAMA_SUPPORTED) && defined(PNG_FLOATING_POINT_SUPPORTED) - /* The gAMA chunk describes the gamma characteristics of the system - * on which the image was created, normally in the range [1.0, 2.5]. - * Data is valid if (valid & PNG_INFO_gAMA) is non-zero. - */ - float gamma; /* gamma value of image, if (valid & PNG_INFO_gAMA) */ -#endif - -#if defined(PNG_sRGB_SUPPORTED) - /* GR-P, 0.96a */ - /* Data valid if (valid & PNG_INFO_sRGB) non-zero. */ - png_byte srgb_intent; /* sRGB rendering intent [0, 1, 2, or 3] */ -#endif - -#if defined(PNG_TEXT_SUPPORTED) - /* The tEXt, and zTXt chunks contain human-readable textual data in - * uncompressed, compressed, and optionally compressed forms, respectively. - * The data in "text" is an array of pointers to uncompressed, - * null-terminated C strings. Each chunk has a keyword that describes the - * textual data contained in that chunk. Keywords are not required to be - * unique, and the text string may be empty. Any number of text chunks may - * be in an image. - */ - int num_text; /* number of comments read/to write */ - int max_text; /* current size of text array */ - png_textp text; /* array of comments read/to write */ -#endif /* PNG_TEXT_SUPPORTED */ - -#if defined(PNG_tIME_SUPPORTED) - /* The tIME chunk holds the last time the displayed image data was - * modified. See the png_time struct for the contents of this struct. - */ - png_time mod_time; -#endif - -#if defined(PNG_sBIT_SUPPORTED) - /* The sBIT chunk specifies the number of significant high-order bits - * in the pixel data. Values are in the range [1, bit_depth], and are - * only specified for the channels in the pixel data. The contents of - * the low-order bits is not specified. Data is valid if - * (valid & PNG_INFO_sBIT) is non-zero. - */ - png_color_8 sig_bit; /* significant bits in color channels */ -#endif - -#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_EXPAND_SUPPORTED) || \ -defined(PNG_READ_BACKGROUND_SUPPORTED) - /* The tRNS chunk supplies transparency data for paletted images and - * other image types that don't need a full alpha channel. There are - * "num_trans" transparency values for a paletted image, stored in the - * same order as the palette colors, starting from index 0. Values - * for the data are in the range [0, 255], ranging from fully transparent - * to fully opaque, respectively. For non-paletted images, there is a - * single color specified that should be treated as fully transparent. - * Data is valid if (valid & PNG_INFO_tRNS) is non-zero. - */ - png_bytep trans; /* transparent values for paletted image */ - png_color_16 trans_values; /* transparent color for non-palette image */ -#endif - -#if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - /* The bKGD chunk gives the suggested image background color if the - * display program does not have its own background color and the image - * is needs to composited onto a background before display. The colors - * in "background" are normally in the same color space/depth as the - * pixel data. Data is valid if (valid & PNG_INFO_bKGD) is non-zero. - */ - png_color_16 background; -#endif - -#if defined(PNG_oFFs_SUPPORTED) - /* The oFFs chunk gives the offset in "offset_unit_type" units rightwards - * and downwards from the top-left corner of the display, page, or other - * application-specific co-ordinate space. See the PNG_OFFSET_ defines - * below for the unit types. Valid if (valid & PNG_INFO_oFFs) non-zero. - */ - png_int_32 x_offset; /* x offset on page */ - png_int_32 y_offset; /* y offset on page */ - png_byte offset_unit_type; /* offset units type */ -#endif - -#if defined(PNG_pHYs_SUPPORTED) - /* The pHYs chunk gives the physical pixel density of the image for - * display or printing in "phys_unit_type" units (see PNG_RESOLUTION_ - * defines below). Data is valid if (valid & PNG_INFO_pHYs) is non-zero. - */ - png_uint_32 x_pixels_per_unit; /* horizontal pixel density */ - png_uint_32 y_pixels_per_unit; /* vertical pixel density */ - png_byte phys_unit_type; /* resolution type (see PNG_RESOLUTION_ below) */ -#endif - -#if defined(PNG_hIST_SUPPORTED) - /* The hIST chunk contains the relative frequency or importance of the - * various palette entries, so that a viewer can intelligently select a - * reduced-color palette, if required. Data is an array of "num_palette" - * values in the range [0,65535]. Data valid if (valid & PNG_INFO_hIST) - * is non-zero. - */ - png_uint_16p hist; -#endif - -#ifdef PNG_cHRM_SUPPORTED - /* The cHRM chunk describes the CIE color characteristics of the monitor - * on which the PNG was created. This data allows the viewer to do gamut - * mapping of the input image to ensure that the viewer sees the same - * colors in the image as the creator. Values are in the range - * [0.0, 0.8]. Data valid if (valid & PNG_INFO_cHRM) non-zero. - */ -#ifdef PNG_FLOATING_POINT_SUPPORTED - float x_white; - float y_white; - float x_red; - float y_red; - float x_green; - float y_green; - float x_blue; - float y_blue; -#endif -#endif - -#if defined(PNG_pCAL_SUPPORTED) - /* The pCAL chunk describes a transformation between the stored pixel - * values and original physical data values used to create the image. - * The integer range [0, 2^bit_depth - 1] maps to the floating-point - * range given by [pcal_X0, pcal_X1], and are further transformed by a - * (possibly non-linear) transformation function given by "pcal_type" - * and "pcal_params" into "pcal_units". Please see the PNG_EQUATION_ - * defines below, and the PNG-Group's PNG extensions document for a - * complete description of the transformations and how they should be - * implemented, and for a description of the ASCII parameter strings. - * Data values are valid if (valid & PNG_INFO_pCAL) non-zero. - */ - png_charp pcal_purpose; /* pCAL chunk description string */ - png_int_32 pcal_X0; /* minimum value */ - png_int_32 pcal_X1; /* maximum value */ - png_charp pcal_units; /* Latin-1 string giving physical units */ - png_charpp pcal_params; /* ASCII strings containing parameter values */ - png_byte pcal_type; /* equation type (see PNG_EQUATION_ below) */ - png_byte pcal_nparams; /* number of parameters given in pcal_params */ -#endif - -/* New members added in libpng-1.0.6 */ -#ifdef PNG_FREE_ME_SUPPORTED - png_uint_32 free_me; /* flags items libpng is responsible for freeing */ -#endif - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - /* storage for unknown chunks that the library doesn't recognize. */ - png_unknown_chunkp unknown_chunks; - png_size_t unknown_chunks_num; -#endif - -#if defined(PNG_iCCP_SUPPORTED) - /* iCCP chunk data. */ - png_charp iccp_name; /* profile name */ - png_charp iccp_profile; /* International Color Consortium profile data */ - /* Note to maintainer: should be png_bytep */ - png_uint_32 iccp_proflen; /* ICC profile data length */ - png_byte iccp_compression; /* Always zero */ -#endif - -#if defined(PNG_sPLT_SUPPORTED) - /* data on sPLT chunks (there may be more than one). */ - png_sPLT_tp splt_palettes; - png_uint_32 splt_palettes_num; -#endif - -#if defined(PNG_sCAL_SUPPORTED) - /* The sCAL chunk describes the actual physical dimensions of the - * subject matter of the graphic. The chunk contains a unit specification - * a byte value, and two ASCII strings representing floating-point - * values. The values are width and height corresponsing to one pixel - * in the image. This external representation is converted to double - * here. Data values are valid if (valid & PNG_INFO_sCAL) is non-zero. - */ - png_byte scal_unit; /* unit of physical scale */ -#ifdef PNG_FLOATING_POINT_SUPPORTED - double scal_pixel_width; /* width of one pixel */ - double scal_pixel_height; /* height of one pixel */ -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - png_charp scal_s_width; /* string containing height */ - png_charp scal_s_height; /* string containing width */ -#endif -#endif - -#if defined(PNG_INFO_IMAGE_SUPPORTED) - /* Memory has been allocated if (valid & PNG_ALLOCATED_INFO_ROWS) non-zero */ - /* Data valid if (valid & PNG_INFO_IDAT) non-zero */ - png_bytepp row_pointers; /* the image bits */ -#endif - -#if defined(PNG_FIXED_POINT_SUPPORTED) && defined(PNG_gAMA_SUPPORTED) - png_fixed_point int_gamma; /* gamma of image, if (valid & PNG_INFO_gAMA) */ -#endif - -#if defined(PNG_cHRM_SUPPORTED) && defined(PNG_FIXED_POINT_SUPPORTED) - png_fixed_point int_x_white; - png_fixed_point int_y_white; - png_fixed_point int_x_red; - png_fixed_point int_y_red; - png_fixed_point int_x_green; - png_fixed_point int_y_green; - png_fixed_point int_x_blue; - png_fixed_point int_y_blue; -#endif - -} png_info; - -typedef png_info FAR * png_infop; -typedef png_info FAR * FAR * png_infopp; - -/* Maximum positive integer used in PNG is (2^31)-1 */ -#define PNG_MAX_UINT ((png_uint_32)0x7fffffffL) - -/* These describe the color_type field in png_info. */ -/* color type masks */ -#define PNG_COLOR_MASK_PALETTE 1 -#define PNG_COLOR_MASK_COLOR 2 -#define PNG_COLOR_MASK_ALPHA 4 - -/* color types. Note that not all combinations are legal */ -#define PNG_COLOR_TYPE_GRAY 0 -#define PNG_COLOR_TYPE_PALETTE (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_PALETTE) -#define PNG_COLOR_TYPE_RGB (PNG_COLOR_MASK_COLOR) -#define PNG_COLOR_TYPE_RGB_ALPHA (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_ALPHA) -#define PNG_COLOR_TYPE_GRAY_ALPHA (PNG_COLOR_MASK_ALPHA) -/* aliases */ -#define PNG_COLOR_TYPE_RGBA PNG_COLOR_TYPE_RGB_ALPHA -#define PNG_COLOR_TYPE_GA PNG_COLOR_TYPE_GRAY_ALPHA - -/* This is for compression type. PNG 1.0-1.2 only define the single type. */ -#define PNG_COMPRESSION_TYPE_BASE 0 /* Deflate method 8, 32K window */ -#define PNG_COMPRESSION_TYPE_DEFAULT PNG_COMPRESSION_TYPE_BASE - -/* This is for filter type. PNG 1.0-1.2 only define the single type. */ -#define PNG_FILTER_TYPE_BASE 0 /* Single row per-byte filtering */ -#define PNG_INTRAPIXEL_DIFFERENCING 64 /* Used only in MNG datastreams */ -#define PNG_FILTER_TYPE_DEFAULT PNG_FILTER_TYPE_BASE - -/* These are for the interlacing type. These values should NOT be changed. */ -#define PNG_INTERLACE_NONE 0 /* Non-interlaced image */ -#define PNG_INTERLACE_ADAM7 1 /* Adam7 interlacing */ -#define PNG_INTERLACE_LAST 2 /* Not a valid value */ - -/* These are for the oFFs chunk. These values should NOT be changed. */ -#define PNG_OFFSET_PIXEL 0 /* Offset in pixels */ -#define PNG_OFFSET_MICROMETER 1 /* Offset in micrometers (1/10^6 meter) */ -#define PNG_OFFSET_LAST 2 /* Not a valid value */ - -/* These are for the pCAL chunk. These values should NOT be changed. */ -#define PNG_EQUATION_LINEAR 0 /* Linear transformation */ -#define PNG_EQUATION_BASE_E 1 /* Exponential base e transform */ -#define PNG_EQUATION_ARBITRARY 2 /* Arbitrary base exponential transform */ -#define PNG_EQUATION_HYPERBOLIC 3 /* Hyperbolic sine transformation */ -#define PNG_EQUATION_LAST 4 /* Not a valid value */ - -/* These are for the sCAL chunk. These values should NOT be changed. */ -#define PNG_SCALE_UNKNOWN 0 /* unknown unit (image scale) */ -#define PNG_SCALE_METER 1 /* meters per pixel */ -#define PNG_SCALE_RADIAN 2 /* radians per pixel */ -#define PNG_SCALE_LAST 3 /* Not a valid value */ - -/* These are for the pHYs chunk. These values should NOT be changed. */ -#define PNG_RESOLUTION_UNKNOWN 0 /* pixels/unknown unit (aspect ratio) */ -#define PNG_RESOLUTION_METER 1 /* pixels/meter */ -#define PNG_RESOLUTION_LAST 2 /* Not a valid value */ - -/* These are for the sRGB chunk. These values should NOT be changed. */ -#define PNG_sRGB_INTENT_PERCEPTUAL 0 -#define PNG_sRGB_INTENT_RELATIVE 1 -#define PNG_sRGB_INTENT_SATURATION 2 -#define PNG_sRGB_INTENT_ABSOLUTE 3 -#define PNG_sRGB_INTENT_LAST 4 /* Not a valid value */ - -/* This is for text chunks */ -#define PNG_KEYWORD_MAX_LENGTH 79 - -/* Maximum number of entries in PLTE/sPLT/tRNS arrays */ -#define PNG_MAX_PALETTE_LENGTH 256 - -/* These determine if an ancillary chunk's data has been successfully read - * from the PNG header, or if the application has filled in the corresponding - * data in the info_struct to be written into the output file. The values - * of the PNG_INFO_ defines should NOT be changed. - */ -#define PNG_INFO_gAMA 0x0001 -#define PNG_INFO_sBIT 0x0002 -#define PNG_INFO_cHRM 0x0004 -#define PNG_INFO_PLTE 0x0008 -#define PNG_INFO_tRNS 0x0010 -#define PNG_INFO_bKGD 0x0020 -#define PNG_INFO_hIST 0x0040 -#define PNG_INFO_pHYs 0x0080 -#define PNG_INFO_oFFs 0x0100 -#define PNG_INFO_tIME 0x0200 -#define PNG_INFO_pCAL 0x0400 -#define PNG_INFO_sRGB 0x0800 /* GR-P, 0.96a */ -#define PNG_INFO_iCCP 0x1000 /* ESR, 1.0.6 */ -#define PNG_INFO_sPLT 0x2000 /* ESR, 1.0.6 */ -#define PNG_INFO_sCAL 0x4000 /* ESR, 1.0.6 */ -#define PNG_INFO_IDAT 0x8000L /* ESR, 1.0.6 */ - -/* This is used for the transformation routines, as some of them - * change these values for the row. It also should enable using - * the routines for other purposes. - */ -typedef struct png_row_info_struct -{ - png_uint_32 width; /* width of row */ - png_uint_32 rowbytes; /* number of bytes in row */ - png_byte color_type; /* color type of row */ - png_byte bit_depth; /* bit depth of row */ - png_byte channels; /* number of channels (1, 2, 3, or 4) */ - png_byte pixel_depth; /* bits per pixel (depth * channels) */ -} png_row_info; - -typedef png_row_info FAR * png_row_infop; -typedef png_row_info FAR * FAR * png_row_infopp; - -/* These are the function types for the I/O functions and for the functions - * that allow the user to override the default I/O functions with his or her - * own. The png_error_ptr type should match that of user-supplied warning - * and error functions, while the png_rw_ptr type should match that of the - * user read/write data functions. - */ -typedef struct png_struct_def png_struct; -typedef png_struct FAR * png_structp; - -typedef void (PNGAPI *png_error_ptr) PNGARG((png_structp, png_const_charp)); -typedef void (PNGAPI *png_rw_ptr) PNGARG((png_structp, png_bytep, png_size_t)); -typedef void (PNGAPI *png_flush_ptr) PNGARG((png_structp)); -typedef void (PNGAPI *png_read_status_ptr) PNGARG((png_structp, png_uint_32, - int)); -typedef void (PNGAPI *png_write_status_ptr) PNGARG((png_structp, png_uint_32, - int)); - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -typedef void (PNGAPI *png_progressive_info_ptr) PNGARG((png_structp, png_infop)); -typedef void (PNGAPI *png_progressive_end_ptr) PNGARG((png_structp, png_infop)); -typedef void (PNGAPI *png_progressive_row_ptr) PNGARG((png_structp, png_bytep, - png_uint_32, int)); -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -typedef void (PNGAPI *png_user_transform_ptr) PNGARG((png_structp, - png_row_infop, png_bytep)); -#endif - -#if defined(PNG_USER_CHUNKS_SUPPORTED) -typedef int (PNGAPI *png_user_chunk_ptr) PNGARG((png_structp, png_unknown_chunkp)); -#endif -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -typedef void (PNGAPI *png_unknown_chunk_ptr) PNGARG((png_structp)); -#endif - -/* Transform masks for the high-level interface */ -#define PNG_TRANSFORM_IDENTITY 0x0000 /* read and write */ -#define PNG_TRANSFORM_STRIP_16 0x0001 /* read only */ -#define PNG_TRANSFORM_STRIP_ALPHA 0x0002 /* read only */ -#define PNG_TRANSFORM_PACKING 0x0004 /* read and write */ -#define PNG_TRANSFORM_PACKSWAP 0x0008 /* read and write */ -#define PNG_TRANSFORM_EXPAND 0x0010 /* read only */ -#define PNG_TRANSFORM_INVERT_MONO 0x0020 /* read and write */ -#define PNG_TRANSFORM_SHIFT 0x0040 /* read and write */ -#define PNG_TRANSFORM_BGR 0x0080 /* read and write */ -#define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */ -#define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */ -#define PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* read and write */ -#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* WRITE only */ - -/* Flags for MNG supported features */ -#define PNG_FLAG_MNG_EMPTY_PLTE 0x01 -#define PNG_FLAG_MNG_FILTER_64 0x04 -#define PNG_ALL_MNG_FEATURES 0x05 - -typedef png_voidp (*png_malloc_ptr) PNGARG((png_structp, png_size_t)); -typedef void (*png_free_ptr) PNGARG((png_structp, png_voidp)); - -/* The structure that holds the information to read and write PNG files. - * The only people who need to care about what is inside of this are the - * people who will be modifying the library for their own special needs. - * It should NOT be accessed directly by an application, except to store - * the jmp_buf. - */ - -struct png_struct_def -{ -#ifdef PNG_SETJMP_SUPPORTED - jmp_buf jmpbuf; /* used in png_error */ -#endif - png_error_ptr error_fn; /* function for printing errors and aborting */ - png_error_ptr warning_fn; /* function for printing warnings */ - png_voidp error_ptr; /* user supplied struct for error functions */ - png_rw_ptr write_data_fn; /* function for writing output data */ - png_rw_ptr read_data_fn; /* function for reading input data */ - png_voidp io_ptr; /* ptr to application struct for I/O functions */ - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) - png_user_transform_ptr read_user_transform_fn; /* user read transform */ -#endif - -#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) - png_user_transform_ptr write_user_transform_fn; /* user write transform */ -#endif - -/* These were added in libpng-1.0.2 */ -#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) - png_voidp user_transform_ptr; /* user supplied struct for user transform */ - png_byte user_transform_depth; /* bit depth of user transformed pixels */ - png_byte user_transform_channels; /* channels in user transformed pixels */ -#endif -#endif - - png_uint_32 mode; /* tells us where we are in the PNG file */ - png_uint_32 flags; /* flags indicating various things to libpng */ - png_uint_32 transformations; /* which transformations to perform */ - - z_stream zstream; /* pointer to decompression structure (below) */ - png_bytep zbuf; /* buffer for zlib */ - png_size_t zbuf_size; /* size of zbuf */ - int zlib_level; /* holds zlib compression level */ - int zlib_method; /* holds zlib compression method */ - int zlib_window_bits; /* holds zlib compression window bits */ - int zlib_mem_level; /* holds zlib compression memory level */ - int zlib_strategy; /* holds zlib compression strategy */ - - png_uint_32 width; /* width of image in pixels */ - png_uint_32 height; /* height of image in pixels */ - png_uint_32 num_rows; /* number of rows in current pass */ - png_uint_32 usr_width; /* width of row at start of write */ - png_uint_32 rowbytes; /* size of row in bytes */ - png_uint_32 irowbytes; /* size of current interlaced row in bytes */ - png_uint_32 iwidth; /* width of current interlaced row in pixels */ - png_uint_32 row_number; /* current row in interlace pass */ - png_bytep prev_row; /* buffer to save previous (unfiltered) row */ - png_bytep row_buf; /* buffer to save current (unfiltered) row */ - png_bytep sub_row; /* buffer to save "sub" row when filtering */ - png_bytep up_row; /* buffer to save "up" row when filtering */ - png_bytep avg_row; /* buffer to save "avg" row when filtering */ - png_bytep paeth_row; /* buffer to save "Paeth" row when filtering */ - png_row_info row_info; /* used for transformation routines */ - - png_uint_32 idat_size; /* current IDAT size for read */ - png_uint_32 crc; /* current chunk CRC value */ - png_colorp palette; /* palette from the input file */ - png_uint_16 num_palette; /* number of color entries in palette */ - png_uint_16 num_trans; /* number of transparency values */ - png_byte chunk_name[5]; /* null-terminated name of current chunk */ - png_byte compression; /* file compression type (always 0) */ - png_byte filter; /* file filter type (always 0) */ - png_byte interlaced; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */ - png_byte pass; /* current interlace pass (0 - 6) */ - png_byte do_filter; /* row filter flags (see PNG_FILTER_ below ) */ - png_byte color_type; /* color type of file */ - png_byte bit_depth; /* bit depth of file */ - png_byte usr_bit_depth; /* bit depth of users row */ - png_byte pixel_depth; /* number of bits per pixel */ - png_byte channels; /* number of channels in file */ - png_byte usr_channels; /* channels at start of write */ - png_byte sig_bytes; /* magic bytes read/written from start of file */ - -#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) -#ifdef PNG_LEGACY_SUPPORTED - png_byte filler; /* filler byte for pixel expansion */ -#else - png_uint_16 filler; /* filler bytes for pixel expansion */ -#endif -#endif - -#if defined(PNG_bKGD_SUPPORTED) - png_byte background_gamma_type; -# ifdef PNG_FLOATING_POINT_SUPPORTED - float background_gamma; -# endif - png_color_16 background; /* background color in screen gamma space */ -#if defined(PNG_READ_GAMMA_SUPPORTED) - png_color_16 background_1; /* background normalized to gamma 1.0 */ -#endif -#endif /* PNG_bKGD_SUPPORTED */ - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) - png_flush_ptr output_flush_fn;/* Function for flushing output */ - png_uint_32 flush_dist; /* how many rows apart to flush, 0 - no flush */ - png_uint_32 flush_rows; /* number of rows written since last flush */ -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - int gamma_shift; /* number of "insignificant" bits 16-bit gamma */ -#ifdef PNG_FLOATING_POINT_SUPPORTED - float gamma; /* file gamma value */ - float screen_gamma; /* screen gamma value (display_exponent) */ -#endif -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - png_bytep gamma_table; /* gamma table for 8-bit depth files */ - png_bytep gamma_from_1; /* converts from 1.0 to screen */ - png_bytep gamma_to_1; /* converts from file to 1.0 */ - png_uint_16pp gamma_16_table; /* gamma table for 16-bit depth files */ - png_uint_16pp gamma_16_from_1; /* converts from 1.0 to screen */ - png_uint_16pp gamma_16_to_1; /* converts from file to 1.0 */ -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_sBIT_SUPPORTED) - png_color_8 sig_bit; /* significant bits in each available channel */ -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) - png_color_8 shift; /* shift for significant bit tranformation */ -#endif - -#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \ - || defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - png_bytep trans; /* transparency values for paletted files */ - png_color_16 trans_values; /* transparency values for non-paletted files */ -#endif - - png_read_status_ptr read_row_fn; /* called after each row is decoded */ - png_write_status_ptr write_row_fn; /* called after each row is encoded */ -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED - png_progressive_info_ptr info_fn; /* called after header data fully read */ - png_progressive_row_ptr row_fn; /* called after each prog. row is decoded */ - png_progressive_end_ptr end_fn; /* called after image is complete */ - png_bytep save_buffer_ptr; /* current location in save_buffer */ - png_bytep save_buffer; /* buffer for previously read data */ - png_bytep current_buffer_ptr; /* current location in current_buffer */ - png_bytep current_buffer; /* buffer for recently used data */ - png_uint_32 push_length; /* size of current input chunk */ - png_uint_32 skip_length; /* bytes to skip in input data */ - png_size_t save_buffer_size; /* amount of data now in save_buffer */ - png_size_t save_buffer_max; /* total size of save_buffer */ - png_size_t buffer_size; /* total amount of available input data */ - png_size_t current_buffer_size; /* amount of data now in current_buffer */ - int process_mode; /* what push library is currently doing */ - int cur_palette; /* current push library palette index */ - -# if defined(PNG_TEXT_SUPPORTED) - png_size_t current_text_size; /* current size of text input data */ - png_size_t current_text_left; /* how much text left to read in input */ - png_charp current_text; /* current text chunk buffer */ - png_charp current_text_ptr; /* current location in current_text */ -# endif /* PNG_PROGRESSIVE_READ_SUPPORTED && PNG_TEXT_SUPPORTED */ - -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ - -#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__) -/* for the Borland special 64K segment handler */ - png_bytepp offset_table_ptr; - png_bytep offset_table; - png_uint_16 offset_table_number; - png_uint_16 offset_table_count; - png_uint_16 offset_table_count_free; -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) - png_bytep palette_lookup; /* lookup table for dithering */ - png_bytep dither_index; /* index translation for palette files */ -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) || defined(PNG_hIST_SUPPORTED) - png_uint_16p hist; /* histogram */ -#endif - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - png_byte heuristic_method; /* heuristic for row filter selection */ - png_byte num_prev_filters; /* number of weights for previous rows */ - png_bytep prev_filters; /* filter type(s) of previous row(s) */ - png_uint_16p filter_weights; /* weight(s) for previous line(s) */ - png_uint_16p inv_filter_weights; /* 1/weight(s) for previous line(s) */ - png_uint_16p filter_costs; /* relative filter calculation cost */ - png_uint_16p inv_filter_costs; /* 1/relative filter calculation cost */ -#endif - -#if defined(PNG_TIME_RFC1123_SUPPORTED) - png_charp time_buffer; /* String to hold RFC 1123 time text */ -#endif - -/* New members added in libpng-1.0.6 */ - -#ifdef PNG_FREE_ME_SUPPORTED - png_uint_32 free_me; /* flags items libpng is responsible for freeing */ -#endif - -#if defined(PNG_USER_CHUNKS_SUPPORTED) - png_voidp user_chunk_ptr; - png_user_chunk_ptr read_user_chunk_fn; /* user read chunk handler */ -#endif - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - int num_chunk_list; - png_bytep chunk_list; -#endif - -/* New members added in libpng-1.0.3 */ -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - png_byte rgb_to_gray_status; - /* These were changed from png_byte in libpng-1.0.6 */ - png_uint_16 rgb_to_gray_red_coeff; - png_uint_16 rgb_to_gray_green_coeff; - png_uint_16 rgb_to_gray_blue_coeff; -#endif - -/* New member added in libpng-1.0.4 (renamed in 1.0.9) */ -#if defined(PNG_MNG_FEATURES_SUPPORTED) || \ - defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ - defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) -/* changed from png_byte to png_uint_32 at version 1.2.0 */ -#ifdef PNG_1_0_X - png_byte mng_features_permitted; -#else - png_uint_32 mng_features_permitted; -#endif /* PNG_1_0_X */ -#endif - -/* New member added in libpng-1.0.7 */ -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - png_fixed_point int_gamma; -#endif - -/* New member added in libpng-1.0.9, ifdef'ed out in 1.0.12, enabled in 1.2.0 */ -#if defined(PNG_MNG_FEATURES_SUPPORTED) - png_byte filter_type; -#endif - -#if defined(PNG_1_0_X) || (defined(PNG_DEBUG) && defined(PNG_USE_PNGGCCRD)) -/* New member added in libpng-1.0.10, ifdef'ed out in 1.2.0 */ - png_uint_32 row_buf_size; -#endif - -/* New members added in libpng-1.2.0 */ -#if !defined(PNG_1_0_X) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) - png_byte mmx_bitdepth_threshold; - png_uint_32 mmx_rowbytes_threshold; - png_uint_32 asm_flags; -#endif - -/* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */ -#ifdef PNG_USER_MEM_SUPPORTED - png_voidp mem_ptr; /* user supplied struct for mem functions */ - png_malloc_ptr malloc_fn; /* function for allocating memory */ - png_free_ptr free_fn; /* function for freeing memory */ -#endif - -/* New member added in libpng-1.0.13 and 1.2.0 */ - png_bytep big_row_buf; /* buffer to save current (unfiltered) row */ - -#if defined(PNG_READ_DITHER_SUPPORTED) -/* The following three members were added at version 1.0.14 and 1.2.4 */ - png_bytep dither_sort; /* working sort array */ - png_bytep index_to_palette; /* where the original index currently is */ - /* in the palette */ - png_bytep palette_to_index; /* which original index points to this */ - /* palette color */ -#endif - -}; - - -/* This prevents a compiler error in png.c if png.c and png.h are both at - version 1.2.5 - */ -typedef png_structp version_1_2_5; - -typedef png_struct FAR * FAR * png_structpp; - -/* Here are the function definitions most commonly used. This is not - * the place to find out how to use libpng. See libpng.txt for the - * full explanation, see example.c for the summary. This just provides - * a simple one line description of the use of each function. - */ - -/* Returns the version number of the library */ -extern PNG_EXPORT(png_uint_32,png_access_version_number) PNGARG((void)); - -/* Tell lib we have already handled the first magic bytes. - * Handling more than 8 bytes from the beginning of the file is an error. - */ -extern PNG_EXPORT(void,png_set_sig_bytes) PNGARG((png_structp png_ptr, - int num_bytes)); - -/* Check sig[start] through sig[start + num_to_check - 1] to see if it's a - * PNG file. Returns zero if the supplied bytes match the 8-byte PNG - * signature, and non-zero otherwise. Having num_to_check == 0 or - * start > 7 will always fail (ie return non-zero). - */ -extern PNG_EXPORT(int,png_sig_cmp) PNGARG((png_bytep sig, png_size_t start, - png_size_t num_to_check)); - -/* Simple signature checking function. This is the same as calling - * png_check_sig(sig, n) := !png_sig_cmp(sig, 0, n). - */ -extern PNG_EXPORT(int,png_check_sig) PNGARG((png_bytep sig, int num)); - -/* Allocate and initialize png_ptr struct for reading, and any other memory. */ -extern PNG_EXPORT(png_structp,png_create_read_struct) - PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn)); - -/* Allocate and initialize png_ptr struct for writing, and any other memory */ -extern PNG_EXPORT(png_structp,png_create_write_struct) - PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn)); - -extern PNG_EXPORT(png_uint_32,png_get_compression_buffer_size) - PNGARG((png_structp png_ptr)); - -extern PNG_EXPORT(void,png_set_compression_buffer_size) - PNGARG((png_structp png_ptr, png_uint_32 size)); - -/* Reset the compression stream */ -extern PNG_EXPORT(int,png_reset_zstream) PNGARG((png_structp png_ptr)); - -/* New functions added in libpng-1.0.2 (not enabled by default until 1.2.0) */ -#ifdef PNG_USER_MEM_SUPPORTED -extern PNG_EXPORT(png_structp,png_create_read_struct_2) - PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn)); -extern PNG_EXPORT(png_structp,png_create_write_struct_2) - PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn)); -#endif - -/* Write a PNG chunk - size, type, (optional) data, CRC. */ -extern PNG_EXPORT(void,png_write_chunk) PNGARG((png_structp png_ptr, - png_bytep chunk_name, png_bytep data, png_size_t length)); - -/* Write the start of a PNG chunk - length and chunk name. */ -extern PNG_EXPORT(void,png_write_chunk_start) PNGARG((png_structp png_ptr, - png_bytep chunk_name, png_uint_32 length)); - -/* Write the data of a PNG chunk started with png_write_chunk_start(). */ -extern PNG_EXPORT(void,png_write_chunk_data) PNGARG((png_structp png_ptr, - png_bytep data, png_size_t length)); - -/* Finish a chunk started with png_write_chunk_start() (includes CRC). */ -extern PNG_EXPORT(void,png_write_chunk_end) PNGARG((png_structp png_ptr)); - -/* Allocate and initialize the info structure */ -extern PNG_EXPORT(png_infop,png_create_info_struct) - PNGARG((png_structp png_ptr)); - -/* Initialize the info structure (old interface - DEPRECATED) */ -extern PNG_EXPORT(void,png_info_init) PNGARG((png_infop info_ptr)); -#undef png_info_init -#define png_info_init(info_ptr) png_info_init_3(&info_ptr, sizeof(png_info)); -extern PNG_EXPORT(void,png_info_init_3) PNGARG((png_infopp info_ptr, - png_size_t png_info_struct_size)); - -/* Writes all the PNG information before the image. */ -extern PNG_EXPORT(void,png_write_info_before_PLTE) PNGARG((png_structp png_ptr, - png_infop info_ptr)); -extern PNG_EXPORT(void,png_write_info) PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -/* read the information before the actual image data. */ -extern PNG_EXPORT(void,png_read_info) PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -#if defined(PNG_TIME_RFC1123_SUPPORTED) -extern PNG_EXPORT(png_charp,png_convert_to_rfc1123) - PNGARG((png_structp png_ptr, png_timep ptime)); -#endif - -#if !defined(_WIN32_WCE) -/* "time.h" functions are not supported on WindowsCE */ -#if defined(PNG_WRITE_tIME_SUPPORTED) -/* convert from a struct tm to png_time */ -extern PNG_EXPORT(void,png_convert_from_struct_tm) PNGARG((png_timep ptime, - struct tm FAR * ttime)); - -/* convert from time_t to png_time. Uses gmtime() */ -extern PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime, - time_t ttime)); -#endif /* PNG_WRITE_tIME_SUPPORTED */ -#endif /* _WIN32_WCE */ - -#if defined(PNG_READ_EXPAND_SUPPORTED) -/* Expand data to 24-bit RGB, or 8-bit grayscale, with alpha if available. */ -extern PNG_EXPORT(void,png_set_expand) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(void,png_set_gray_1_2_4_to_8) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(void,png_set_palette_to_rgb) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(void,png_set_tRNS_to_alpha) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -/* Use blue, green, red order for pixels. */ -extern PNG_EXPORT(void,png_set_bgr) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) -/* Expand the grayscale to 24-bit RGB if necessary. */ -extern PNG_EXPORT(void,png_set_gray_to_rgb) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) -/* Reduce RGB to grayscale. */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_rgb_to_gray) PNGARG((png_structp png_ptr, - int error_action, double red, double green )); -#endif -extern PNG_EXPORT(void,png_set_rgb_to_gray_fixed) PNGARG((png_structp png_ptr, - int error_action, png_fixed_point red, png_fixed_point green )); -extern PNG_EXPORT(png_byte,png_get_rgb_to_gray_status) PNGARG((png_structp - png_ptr)); -#endif - -extern PNG_EXPORT(void,png_build_grayscale_palette) PNGARG((int bit_depth, - png_colorp palette)); - -#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED) -extern PNG_EXPORT(void,png_set_strip_alpha) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \ - defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) -extern PNG_EXPORT(void,png_set_swap_alpha) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \ - defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) -extern PNG_EXPORT(void,png_set_invert_alpha) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) -/* Add a filler byte to 24-bit RGB images. */ -extern PNG_EXPORT(void,png_set_filler) PNGARG((png_structp png_ptr, - png_uint_32 filler, int flags)); -/* The values of the PNG_FILLER_ defines should NOT be changed */ -#define PNG_FILLER_BEFORE 0 -#define PNG_FILLER_AFTER 1 -#endif /* PNG_READ_FILLER_SUPPORTED || PNG_WRITE_FILLER_SUPPORTED */ - -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -/* Swap bytes in 16-bit depth files. */ -extern PNG_EXPORT(void,png_set_swap) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED) -/* Use 1 byte per pixel in 1, 2, or 4-bit depth files. */ -extern PNG_EXPORT(void,png_set_packing) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) || defined(PNG_WRITE_PACKSWAP_SUPPORTED) -/* Swap packing order of pixels in bytes. */ -extern PNG_EXPORT(void,png_set_packswap) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) -/* Converts files to legal bit depths. */ -extern PNG_EXPORT(void,png_set_shift) PNGARG((png_structp png_ptr, - png_color_8p true_bits)); -#endif - -#if defined(PNG_READ_INTERLACING_SUPPORTED) || \ - defined(PNG_WRITE_INTERLACING_SUPPORTED) -/* Have the code handle the interlacing. Returns the number of passes. */ -extern PNG_EXPORT(int,png_set_interlace_handling) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) -/* Invert monochrome files */ -extern PNG_EXPORT(void,png_set_invert_mono) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) -/* Handle alpha and tRNS by replacing with a background color. */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr, - png_color_16p background_color, int background_gamma_code, - int need_expand, double background_gamma)); -#endif -#define PNG_BACKGROUND_GAMMA_UNKNOWN 0 -#define PNG_BACKGROUND_GAMMA_SCREEN 1 -#define PNG_BACKGROUND_GAMMA_FILE 2 -#define PNG_BACKGROUND_GAMMA_UNIQUE 3 -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) -/* strip the second byte of information from a 16-bit depth file. */ -extern PNG_EXPORT(void,png_set_strip_16) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) -/* Turn on dithering, and reduce the palette to the number of colors available. */ -extern PNG_EXPORT(void,png_set_dither) PNGARG((png_structp png_ptr, - png_colorp palette, int num_palette, int maximum_colors, - png_uint_16p histogram, int full_dither)); -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) -/* Handle gamma correction. Screen_gamma=(display_exponent) */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_gamma) PNGARG((png_structp png_ptr, - double screen_gamma, double default_file_gamma)); -#endif -#endif - -#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ - defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) -/* Permit or disallow empty PLTE (0: not permitted, 1: permitted) */ -/* Deprecated and will be removed. Use png_permit_mng_features() instead. */ -extern PNG_EXPORT(void,png_permit_empty_plte) PNGARG((png_structp png_ptr, - int empty_plte_permitted)); -#endif - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -/* Set how many lines between output flushes - 0 for no flushing */ -extern PNG_EXPORT(void,png_set_flush) PNGARG((png_structp png_ptr, int nrows)); -/* Flush the current PNG output buffer */ -extern PNG_EXPORT(void,png_write_flush) PNGARG((png_structp png_ptr)); -#endif - -/* optional update palette with requested transformations */ -extern PNG_EXPORT(void,png_start_read_image) PNGARG((png_structp png_ptr)); - -/* optional call to update the users info structure */ -extern PNG_EXPORT(void,png_read_update_info) PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -/* read one or more rows of image data. */ -extern PNG_EXPORT(void,png_read_rows) PNGARG((png_structp png_ptr, - png_bytepp row, png_bytepp display_row, png_uint_32 num_rows)); - -/* read a row of data. */ -extern PNG_EXPORT(void,png_read_row) PNGARG((png_structp png_ptr, - png_bytep row, - png_bytep display_row)); - -/* read the whole image into memory at once. */ -extern PNG_EXPORT(void,png_read_image) PNGARG((png_structp png_ptr, - png_bytepp image)); - -/* write a row of image data */ -extern PNG_EXPORT(void,png_write_row) PNGARG((png_structp png_ptr, - png_bytep row)); - -/* write a few rows of image data */ -extern PNG_EXPORT(void,png_write_rows) PNGARG((png_structp png_ptr, - png_bytepp row, png_uint_32 num_rows)); - -/* write the image data */ -extern PNG_EXPORT(void,png_write_image) PNGARG((png_structp png_ptr, - png_bytepp image)); - -/* writes the end of the PNG file. */ -extern PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -/* read the end of the PNG file. */ -extern PNG_EXPORT(void,png_read_end) PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -/* free any memory associated with the png_info_struct */ -extern PNG_EXPORT(void,png_destroy_info_struct) PNGARG((png_structp png_ptr, - png_infopp info_ptr_ptr)); - -/* free any memory associated with the png_struct and the png_info_structs */ -extern PNG_EXPORT(void,png_destroy_read_struct) PNGARG((png_structpp - png_ptr_ptr, png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr)); - -/* free all memory used by the read (old method - NOT DLL EXPORTED) */ -extern void png_read_destroy PNGARG((png_structp png_ptr, png_infop info_ptr, - png_infop end_info_ptr)); - -/* free any memory associated with the png_struct and the png_info_structs */ -extern PNG_EXPORT(void,png_destroy_write_struct) - PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)); - -/* free any memory used in png_ptr struct (old method - NOT DLL EXPORTED) */ -extern void png_write_destroy PNGARG((png_structp png_ptr)); - -/* set the libpng method of handling chunk CRC errors */ -extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr, - int crit_action, int ancil_action)); - -/* Values for png_set_crc_action() to say how to handle CRC errors in - * ancillary and critical chunks, and whether to use the data contained - * therein. Note that it is impossible to "discard" data in a critical - * chunk. For versions prior to 0.90, the action was always error/quit, - * whereas in version 0.90 and later, the action for CRC errors in ancillary - * chunks is warn/discard. These values should NOT be changed. - * - * value action:critical action:ancillary - */ -#define PNG_CRC_DEFAULT 0 /* error/quit warn/discard data */ -#define PNG_CRC_ERROR_QUIT 1 /* error/quit error/quit */ -#define PNG_CRC_WARN_DISCARD 2 /* (INVALID) warn/discard data */ -#define PNG_CRC_WARN_USE 3 /* warn/use data warn/use data */ -#define PNG_CRC_QUIET_USE 4 /* quiet/use data quiet/use data */ -#define PNG_CRC_NO_CHANGE 5 /* use current value use current value */ - -/* These functions give the user control over the scan-line filtering in - * libpng and the compression methods used by zlib. These functions are - * mainly useful for testing, as the defaults should work with most users. - * Those users who are tight on memory or want faster performance at the - * expense of compression can modify them. See the compression library - * header file (zlib.h) for an explination of the compression functions. - */ - -/* set the filtering method(s) used by libpng. Currently, the only valid - * value for "method" is 0. - */ -extern PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method, - int filters)); - -/* Flags for png_set_filter() to say which filters to use. The flags - * are chosen so that they don't conflict with real filter types - * below, in case they are supplied instead of the #defined constants. - * These values should NOT be changed. - */ -#define PNG_NO_FILTERS 0x00 -#define PNG_FILTER_NONE 0x08 -#define PNG_FILTER_SUB 0x10 -#define PNG_FILTER_UP 0x20 -#define PNG_FILTER_AVG 0x40 -#define PNG_FILTER_PAETH 0x80 -#define PNG_ALL_FILTERS (PNG_FILTER_NONE | PNG_FILTER_SUB | PNG_FILTER_UP | \ - PNG_FILTER_AVG | PNG_FILTER_PAETH) - -/* Filter values (not flags) - used in pngwrite.c, pngwutil.c for now. - * These defines should NOT be changed. - */ -#define PNG_FILTER_VALUE_NONE 0 -#define PNG_FILTER_VALUE_SUB 1 -#define PNG_FILTER_VALUE_UP 2 -#define PNG_FILTER_VALUE_AVG 3 -#define PNG_FILTER_VALUE_PAETH 4 -#define PNG_FILTER_VALUE_LAST 5 - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) /* EXPERIMENTAL */ -/* The "heuristic_method" is given by one of the PNG_FILTER_HEURISTIC_ - * defines, either the default (minimum-sum-of-absolute-differences), or - * the experimental method (weighted-minimum-sum-of-absolute-differences). - * - * Weights are factors >= 1.0, indicating how important it is to keep the - * filter type consistent between rows. Larger numbers mean the current - * filter is that many times as likely to be the same as the "num_weights" - * previous filters. This is cumulative for each previous row with a weight. - * There needs to be "num_weights" values in "filter_weights", or it can be - * NULL if the weights aren't being specified. Weights have no influence on - * the selection of the first row filter. Well chosen weights can (in theory) - * improve the compression for a given image. - * - * Costs are factors >= 1.0 indicating the relative decoding costs of a - * filter type. Higher costs indicate more decoding expense, and are - * therefore less likely to be selected over a filter with lower computational - * costs. There needs to be a value in "filter_costs" for each valid filter - * type (given by PNG_FILTER_VALUE_LAST), or it can be NULL if you aren't - * setting the costs. Costs try to improve the speed of decompression without - * unduly increasing the compressed image size. - * - * A negative weight or cost indicates the default value is to be used, and - * values in the range [0.0, 1.0) indicate the value is to remain unchanged. - * The default values for both weights and costs are currently 1.0, but may - * change if good general weighting/cost heuristics can be found. If both - * the weights and costs are set to 1.0, this degenerates the WEIGHTED method - * to the UNWEIGHTED method, but with added encoding time/computation. - */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_filter_heuristics) PNGARG((png_structp png_ptr, - int heuristic_method, int num_weights, png_doublep filter_weights, - png_doublep filter_costs)); -#endif -#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */ - -/* Heuristic used for row filter selection. These defines should NOT be - * changed. - */ -#define PNG_FILTER_HEURISTIC_DEFAULT 0 /* Currently "UNWEIGHTED" */ -#define PNG_FILTER_HEURISTIC_UNWEIGHTED 1 /* Used by libpng < 0.95 */ -#define PNG_FILTER_HEURISTIC_WEIGHTED 2 /* Experimental feature */ -#define PNG_FILTER_HEURISTIC_LAST 3 /* Not a valid value */ - -/* Set the library compression level. Currently, valid values range from - * 0 - 9, corresponding directly to the zlib compression levels 0 - 9 - * (0 - no compression, 9 - "maximal" compression). Note that tests have - * shown that zlib compression levels 3-6 usually perform as well as level 9 - * for PNG images, and do considerably fewer caclulations. In the future, - * these values may not correspond directly to the zlib compression levels. - */ -extern PNG_EXPORT(void,png_set_compression_level) PNGARG((png_structp png_ptr, - int level)); - -extern PNG_EXPORT(void,png_set_compression_mem_level) - PNGARG((png_structp png_ptr, int mem_level)); - -extern PNG_EXPORT(void,png_set_compression_strategy) - PNGARG((png_structp png_ptr, int strategy)); - -extern PNG_EXPORT(void,png_set_compression_window_bits) - PNGARG((png_structp png_ptr, int window_bits)); - -extern PNG_EXPORT(void,png_set_compression_method) PNGARG((png_structp png_ptr, - int method)); - -/* These next functions are called for input/output, memory, and error - * handling. They are in the file pngrio.c, pngwio.c, and pngerror.c, - * and call standard C I/O routines such as fread(), fwrite(), and - * fprintf(). These functions can be made to use other I/O routines - * at run time for those applications that need to handle I/O in a - * different manner by calling png_set_???_fn(). See libpng.txt for - * more information. - */ - -#if !defined(PNG_NO_STDIO) -/* Initialize the input/output for the PNG file to the default functions. */ -extern PNG_EXPORT(void,png_init_io) PNGARG((png_structp png_ptr, png_FILE_p fp)); -#endif - -/* Replace the (error and abort), and warning functions with user - * supplied functions. If no messages are to be printed you must still - * write and use replacement functions. The replacement error_fn should - * still do a longjmp to the last setjmp location if you are using this - * method of error handling. If error_fn or warning_fn is NULL, the - * default function will be used. - */ - -extern PNG_EXPORT(void,png_set_error_fn) PNGARG((png_structp png_ptr, - png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warning_fn)); - -/* Return the user pointer associated with the error functions */ -extern PNG_EXPORT(png_voidp,png_get_error_ptr) PNGARG((png_structp png_ptr)); - -/* Replace the default data output functions with a user supplied one(s). - * If buffered output is not used, then output_flush_fn can be set to NULL. - * If PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile time - * output_flush_fn will be ignored (and thus can be NULL). - */ -extern PNG_EXPORT(void,png_set_write_fn) PNGARG((png_structp png_ptr, - png_voidp io_ptr, png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)); - -/* Replace the default data input function with a user supplied one. */ -extern PNG_EXPORT(void,png_set_read_fn) PNGARG((png_structp png_ptr, - png_voidp io_ptr, png_rw_ptr read_data_fn)); - -/* Return the user pointer associated with the I/O functions */ -extern PNG_EXPORT(png_voidp,png_get_io_ptr) PNGARG((png_structp png_ptr)); - -extern PNG_EXPORT(void,png_set_read_status_fn) PNGARG((png_structp png_ptr, - png_read_status_ptr read_row_fn)); - -extern PNG_EXPORT(void,png_set_write_status_fn) PNGARG((png_structp png_ptr, - png_write_status_ptr write_row_fn)); - -#ifdef PNG_USER_MEM_SUPPORTED -/* Replace the default memory allocation functions with user supplied one(s). */ -extern PNG_EXPORT(void,png_set_mem_fn) PNGARG((png_structp png_ptr, - png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn)); -/* Return the user pointer associated with the memory functions */ -extern PNG_EXPORT(png_voidp,png_get_mem_ptr) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -extern PNG_EXPORT(void,png_set_read_user_transform_fn) PNGARG((png_structp - png_ptr, png_user_transform_ptr read_user_transform_fn)); -#endif - -#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -extern PNG_EXPORT(void,png_set_write_user_transform_fn) PNGARG((png_structp - png_ptr, png_user_transform_ptr write_user_transform_fn)); -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -extern PNG_EXPORT(void,png_set_user_transform_info) PNGARG((png_structp - png_ptr, png_voidp user_transform_ptr, int user_transform_depth, - int user_transform_channels)); -/* Return the user pointer associated with the user transform functions */ -extern PNG_EXPORT(png_voidp,png_get_user_transform_ptr) - PNGARG((png_structp png_ptr)); -#endif - -#ifdef PNG_USER_CHUNKS_SUPPORTED -extern PNG_EXPORT(void,png_set_read_user_chunk_fn) PNGARG((png_structp png_ptr, - png_voidp user_chunk_ptr, png_user_chunk_ptr read_user_chunk_fn)); -extern PNG_EXPORT(png_voidp,png_get_user_chunk_ptr) PNGARG((png_structp - png_ptr)); -#endif - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -/* Sets the function callbacks for the push reader, and a pointer to a - * user-defined structure available to the callback functions. - */ -extern PNG_EXPORT(void,png_set_progressive_read_fn) PNGARG((png_structp png_ptr, - png_voidp progressive_ptr, - png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, - png_progressive_end_ptr end_fn)); - -/* returns the user pointer associated with the push read functions */ -extern PNG_EXPORT(png_voidp,png_get_progressive_ptr) - PNGARG((png_structp png_ptr)); - -/* function to be called when data becomes available */ -extern PNG_EXPORT(void,png_process_data) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_bytep buffer, png_size_t buffer_size)); - -/* function that combines rows. Not very much different than the - * png_combine_row() call. Is this even used????? - */ -extern PNG_EXPORT(void,png_progressive_combine_row) PNGARG((png_structp png_ptr, - png_bytep old_row, png_bytep new_row)); -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ - -extern PNG_EXPORT(png_voidp,png_malloc) PNGARG((png_structp png_ptr, - png_uint_32 size)); - -#if defined(PNG_1_0_X) -# define png_malloc_warn png_malloc -#else -/* Added at libpng version 1.2.4 */ -extern PNG_EXPORT(png_voidp,png_malloc_warn) PNGARG((png_structp png_ptr, - png_uint_32 size)); -#endif - -/* frees a pointer allocated by png_malloc() */ -extern PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr)); - -#if defined(PNG_1_0_X) -/* Function to allocate memory for zlib. */ -extern PNG_EXPORT(voidpf,png_zalloc) PNGARG((voidpf png_ptr, uInt items, - uInt size)); - -/* Function to free memory for zlib */ -extern PNG_EXPORT(void,png_zfree) PNGARG((voidpf png_ptr, voidpf ptr)); -#endif - -/* Free data that was allocated internally */ -extern PNG_EXPORT(void,png_free_data) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 free_me, int num)); -#ifdef PNG_FREE_ME_SUPPORTED -/* Reassign responsibility for freeing existing data, whether allocated - * by libpng or by the application */ -extern PNG_EXPORT(void,png_data_freer) PNGARG((png_structp png_ptr, - png_infop info_ptr, int freer, png_uint_32 mask)); -#endif -/* assignments for png_data_freer */ -#define PNG_DESTROY_WILL_FREE_DATA 1 -#define PNG_SET_WILL_FREE_DATA 1 -#define PNG_USER_WILL_FREE_DATA 2 -/* Flags for png_ptr->free_me and info_ptr->free_me */ -#define PNG_FREE_HIST 0x0008 -#define PNG_FREE_ICCP 0x0010 -#define PNG_FREE_SPLT 0x0020 -#define PNG_FREE_ROWS 0x0040 -#define PNG_FREE_PCAL 0x0080 -#define PNG_FREE_SCAL 0x0100 -#define PNG_FREE_UNKN 0x0200 -#define PNG_FREE_LIST 0x0400 -#define PNG_FREE_PLTE 0x1000 -#define PNG_FREE_TRNS 0x2000 -#define PNG_FREE_TEXT 0x4000 -#define PNG_FREE_ALL 0x7fff -#define PNG_FREE_MUL 0x4220 /* PNG_FREE_SPLT|PNG_FREE_TEXT|PNG_FREE_UNKN */ - -#ifdef PNG_USER_MEM_SUPPORTED -extern PNG_EXPORT(png_voidp,png_malloc_default) PNGARG((png_structp png_ptr, - png_uint_32 size)); -extern PNG_EXPORT(void,png_free_default) PNGARG((png_structp png_ptr, - png_voidp ptr)); -#endif - -extern PNG_EXPORT(png_voidp,png_memcpy_check) PNGARG((png_structp png_ptr, - png_voidp s1, png_voidp s2, png_uint_32 size)); - -extern PNG_EXPORT(png_voidp,png_memset_check) PNGARG((png_structp png_ptr, - png_voidp s1, int value, png_uint_32 size)); - -#if defined(USE_FAR_KEYWORD) /* memory model conversion function */ -extern void *png_far_to_near PNGARG((png_structp png_ptr,png_voidp ptr, - int check)); -#endif /* USE_FAR_KEYWORD */ - -/* Fatal error in PNG image of libpng - can't continue */ -extern PNG_EXPORT(void,png_error) PNGARG((png_structp png_ptr, - png_const_charp error_message)); - -/* The same, but the chunk name is prepended to the error string. */ -extern PNG_EXPORT(void,png_chunk_error) PNGARG((png_structp png_ptr, - png_const_charp error_message)); - -/* Non-fatal error in libpng. Can continue, but may have a problem. */ -extern PNG_EXPORT(void,png_warning) PNGARG((png_structp png_ptr, - png_const_charp warning_message)); - -/* Non-fatal error in libpng, chunk name is prepended to message. */ -extern PNG_EXPORT(void,png_chunk_warning) PNGARG((png_structp png_ptr, - png_const_charp warning_message)); - -/* The png_set_ functions are for storing values in the png_info_struct. - * Similarly, the png_get_ calls are used to read values from the - * png_info_struct, either storing the parameters in the passed variables, or - * setting pointers into the png_info_struct where the data is stored. The - * png_get_ functions return a non-zero value if the data was available - * in info_ptr, or return zero and do not change any of the parameters if the - * data was not available. - * - * These functions should be used instead of directly accessing png_info - * to avoid problems with future changes in the size and internal layout of - * png_info_struct. - */ -/* Returns "flag" if chunk data is valid in info_ptr. */ -extern PNG_EXPORT(png_uint_32,png_get_valid) PNGARG((png_structp png_ptr, -png_infop info_ptr, png_uint_32 flag)); - -/* Returns number of bytes needed to hold a transformed row. */ -extern PNG_EXPORT(png_uint_32,png_get_rowbytes) PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -/* Returns row_pointers, which is an array of pointers to scanlines that was -returned from png_read_png(). */ -extern PNG_EXPORT(png_bytepp,png_get_rows) PNGARG((png_structp png_ptr, -png_infop info_ptr)); -/* Set row_pointers, which is an array of pointers to scanlines for use -by png_write_png(). */ -extern PNG_EXPORT(void,png_set_rows) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_bytepp row_pointers)); -#endif - -/* Returns number of color channels in image. */ -extern PNG_EXPORT(png_byte,png_get_channels) PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -#ifdef PNG_EASY_ACCESS_SUPPORTED -/* Returns image width in pixels. */ -extern PNG_EXPORT(png_uint_32, png_get_image_width) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image height in pixels. */ -extern PNG_EXPORT(png_uint_32, png_get_image_height) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image bit_depth. */ -extern PNG_EXPORT(png_byte, png_get_bit_depth) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image color_type. */ -extern PNG_EXPORT(png_byte, png_get_color_type) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image filter_type. */ -extern PNG_EXPORT(png_byte, png_get_filter_type) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image interlace_type. */ -extern PNG_EXPORT(png_byte, png_get_interlace_type) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image compression_type. */ -extern PNG_EXPORT(png_byte, png_get_compression_type) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image resolution in pixels per meter, from pHYs chunk data. */ -extern PNG_EXPORT(png_uint_32, png_get_pixels_per_meter) PNGARG((png_structp -png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_uint_32, png_get_x_pixels_per_meter) PNGARG((png_structp -png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_uint_32, png_get_y_pixels_per_meter) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns pixel aspect ratio, computed from pHYs chunk data. */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(float, png_get_pixel_aspect_ratio) PNGARG((png_structp -png_ptr, png_infop info_ptr)); -#endif - -/* Returns image x, y offset in pixels or microns, from oFFs chunk data. */ -extern PNG_EXPORT(png_int_32, png_get_x_offset_pixels) PNGARG((png_structp -png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_int_32, png_get_y_offset_pixels) PNGARG((png_structp -png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_int_32, png_get_x_offset_microns) PNGARG((png_structp -png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_int_32, png_get_y_offset_microns) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -#endif /* PNG_EASY_ACCESS_SUPPORTED */ - -/* Returns pointer to signature string read from PNG header */ -extern PNG_EXPORT(png_bytep,png_get_signature) PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -#if defined(PNG_bKGD_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_bKGD) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_color_16p *background)); -#endif - -#if defined(PNG_bKGD_SUPPORTED) -extern PNG_EXPORT(void,png_set_bKGD) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_color_16p background)); -#endif - -#if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_cHRM) PNGARG((png_structp png_ptr, - png_infop info_ptr, double *white_x, double *white_y, double *red_x, - double *red_y, double *green_x, double *green_y, double *blue_x, - double *blue_y)); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_cHRM_fixed) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_fixed_point *int_white_x, png_fixed_point - *int_white_y, png_fixed_point *int_red_x, png_fixed_point *int_red_y, - png_fixed_point *int_green_x, png_fixed_point *int_green_y, png_fixed_point - *int_blue_x, png_fixed_point *int_blue_y)); -#endif -#endif - -#if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_cHRM) PNGARG((png_structp png_ptr, - png_infop info_ptr, double white_x, double white_y, double red_x, - double red_y, double green_x, double green_y, double blue_x, double blue_y)); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_cHRM_fixed) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_fixed_point int_white_x, png_fixed_point int_white_y, - png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point - int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, - png_fixed_point int_blue_y)); -#endif -#endif - -#if defined(PNG_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_gAMA) PNGARG((png_structp png_ptr, - png_infop info_ptr, double *file_gamma)); -#endif -extern PNG_EXPORT(png_uint_32,png_get_gAMA_fixed) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_fixed_point *int_file_gamma)); -#endif - -#if defined(PNG_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_gAMA) PNGARG((png_structp png_ptr, - png_infop info_ptr, double file_gamma)); -#endif -extern PNG_EXPORT(void,png_set_gAMA_fixed) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_fixed_point int_file_gamma)); -#endif - -#if defined(PNG_hIST_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_hIST) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_16p *hist)); -#endif - -#if defined(PNG_hIST_SUPPORTED) -extern PNG_EXPORT(void,png_set_hIST) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_16p hist)); -#endif - -extern PNG_EXPORT(png_uint_32,png_get_IHDR) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 *width, png_uint_32 *height, - int *bit_depth, int *color_type, int *interlace_method, - int *compression_method, int *filter_method)); - -extern PNG_EXPORT(void,png_set_IHDR) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth, - int color_type, int interlace_method, int compression_method, - int filter_method)); - -#if defined(PNG_oFFs_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_oFFs) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_int_32 *offset_x, png_int_32 *offset_y, - int *unit_type)); -#endif - -#if defined(PNG_oFFs_SUPPORTED) -extern PNG_EXPORT(void,png_set_oFFs) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_int_32 offset_x, png_int_32 offset_y, - int unit_type)); -#endif - -#if defined(PNG_pCAL_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_pCAL) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_charp *purpose, png_int_32 *X0, png_int_32 *X1, - int *type, int *nparams, png_charp *units, png_charpp *params)); -#endif - -#if defined(PNG_pCAL_SUPPORTED) -extern PNG_EXPORT(void,png_set_pCAL) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_charp purpose, png_int_32 X0, png_int_32 X1, - int type, int nparams, png_charp units, png_charpp params)); -#endif - -#if defined(PNG_pHYs_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_pHYs) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)); -#endif - -#if defined(PNG_pHYs_SUPPORTED) -extern PNG_EXPORT(void,png_set_pHYs) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 res_x, png_uint_32 res_y, int unit_type)); -#endif - -extern PNG_EXPORT(png_uint_32,png_get_PLTE) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_colorp *palette, int *num_palette)); - -extern PNG_EXPORT(void,png_set_PLTE) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_colorp palette, int num_palette)); - -#if defined(PNG_sBIT_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_sBIT) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_color_8p *sig_bit)); -#endif - -#if defined(PNG_sBIT_SUPPORTED) -extern PNG_EXPORT(void,png_set_sBIT) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_color_8p sig_bit)); -#endif - -#if defined(PNG_sRGB_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_sRGB) PNGARG((png_structp png_ptr, - png_infop info_ptr, int *intent)); -#endif - -#if defined(PNG_sRGB_SUPPORTED) -extern PNG_EXPORT(void,png_set_sRGB) PNGARG((png_structp png_ptr, - png_infop info_ptr, int intent)); -extern PNG_EXPORT(void,png_set_sRGB_gAMA_and_cHRM) PNGARG((png_structp png_ptr, - png_infop info_ptr, int intent)); -#endif - -#if defined(PNG_iCCP_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_iCCP) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_charpp name, int *compression_type, - png_charpp profile, png_uint_32 *proflen)); - /* Note to maintainer: profile should be png_bytepp */ -#endif - -#if defined(PNG_iCCP_SUPPORTED) -extern PNG_EXPORT(void,png_set_iCCP) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_charp name, int compression_type, - png_charp profile, png_uint_32 proflen)); - /* Note to maintainer: profile should be png_bytep */ -#endif - -#if defined(PNG_sPLT_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_sPLT) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_sPLT_tpp entries)); -#endif - -#if defined(PNG_sPLT_SUPPORTED) -extern PNG_EXPORT(void,png_set_sPLT) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_sPLT_tp entries, int nentries)); -#endif - -#if defined(PNG_TEXT_SUPPORTED) -/* png_get_text also returns the number of text chunks in *num_text */ -extern PNG_EXPORT(png_uint_32,png_get_text) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_textp *text_ptr, int *num_text)); -#endif - -/* - * Note while png_set_text() will accept a structure whose text, - * language, and translated keywords are NULL pointers, the structure - * returned by png_get_text will always contain regular - * zero-terminated C strings. They might be empty strings but - * they will never be NULL pointers. - */ - -#if defined(PNG_TEXT_SUPPORTED) -extern PNG_EXPORT(void,png_set_text) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_textp text_ptr, int num_text)); -#endif - -#if defined(PNG_tIME_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_tIME) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_timep *mod_time)); -#endif - -#if defined(PNG_tIME_SUPPORTED) -extern PNG_EXPORT(void,png_set_tIME) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_timep mod_time)); -#endif - -#if defined(PNG_tRNS_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_tRNS) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_bytep *trans, int *num_trans, - png_color_16p *trans_values)); -#endif - -#if defined(PNG_tRNS_SUPPORTED) -extern PNG_EXPORT(void,png_set_tRNS) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_bytep trans, int num_trans, - png_color_16p trans_values)); -#endif - -#if defined(PNG_tRNS_SUPPORTED) -#endif - -#if defined(PNG_sCAL_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_sCAL) PNGARG((png_structp png_ptr, - png_infop info_ptr, int *unit, double *width, double *height)); -#else -#ifdef PNG_FIXED_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_sCAL_s) PNGARG((png_structp png_ptr, - png_infop info_ptr, int *unit, png_charpp swidth, png_charpp sheight)); -#endif -#endif -#endif /* PNG_sCAL_SUPPORTED */ - -#if defined(PNG_sCAL_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_sCAL) PNGARG((png_structp png_ptr, - png_infop info_ptr, int unit, double width, double height)); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr, - png_infop info_ptr, int unit, png_charp swidth, png_charp sheight)); -#endif -#endif /* PNG_sCAL_SUPPORTED || PNG_WRITE_sCAL_SUPPORTED */ - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -/* provide a list of chunks and how they are to be handled, if the built-in - handling or default unknown chunk handling is not desired. Any chunks not - listed will be handled in the default manner. The IHDR and IEND chunks - must not be listed. - keep = 0: follow default behavour - = 1: do not keep - = 2: keep only if safe-to-copy - = 3: keep even if unsafe-to-copy -*/ -extern PNG_EXPORT(void, png_set_keep_unknown_chunks) PNGARG((png_structp - png_ptr, int keep, png_bytep chunk_list, int num_chunks)); -extern PNG_EXPORT(void, png_set_unknown_chunks) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns)); -extern PNG_EXPORT(void, png_set_unknown_chunk_location) - PNGARG((png_structp png_ptr, png_infop info_ptr, int chunk, int location)); -extern PNG_EXPORT(png_uint_32,png_get_unknown_chunks) PNGARG((png_structp - png_ptr, png_infop info_ptr, png_unknown_chunkpp entries)); -#endif -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -PNG_EXPORT(int,png_handle_as_unknown) PNGARG((png_structp png_ptr, png_bytep - chunk_name)); -#endif - -/* Png_free_data() will turn off the "valid" flag for anything it frees. - If you need to turn it off for a chunk that your application has freed, - you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK); */ -extern PNG_EXPORT(void, png_set_invalid) PNGARG((png_structp png_ptr, - png_infop info_ptr, int mask)); - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -/* The "params" pointer is currently not used and is for future expansion. */ -extern PNG_EXPORT(void, png_read_png) PNGARG((png_structp png_ptr, - png_infop info_ptr, - int transforms, - png_voidp params)); -extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr, - png_infop info_ptr, - int transforms, - png_voidp params)); -#endif - -/* Define PNG_DEBUG at compile time for debugging information. Higher - * numbers for PNG_DEBUG mean more debugging information. This has - * only been added since version 0.95 so it is not implemented throughout - * libpng yet, but more support will be added as needed. - */ -#ifdef PNG_DEBUG -#if (PNG_DEBUG > 0) -#if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER) -#include -#if (PNG_DEBUG > 1) -#define png_debug(l,m) _RPT0(_CRT_WARN,m) -#define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m,p1) -#define png_debug2(l,m,p1,p2) _RPT2(_CRT_WARN,m,p1,p2) -#endif -#else /* PNG_DEBUG_FILE || !_MSC_VER */ -#ifndef PNG_DEBUG_FILE -#define PNG_DEBUG_FILE stderr -#endif /* PNG_DEBUG_FILE */ -#if (PNG_DEBUG > 1) -#define png_debug(l,m) \ -{ \ - int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \ - (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \ -} -#define png_debug1(l,m,p1) \ -{ \ - int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \ - (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \ -} -#define png_debug2(l,m,p1,p2) \ -{ \ - int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \ - (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \ -} -#endif /* (PNG_DEBUG > 1) */ -#endif /* _MSC_VER */ -#endif /* (PNG_DEBUG > 0) */ -#endif /* PNG_DEBUG */ -#ifndef png_debug -#define png_debug(l, m) -#endif -#ifndef png_debug1 -#define png_debug1(l, m, p1) -#endif -#ifndef png_debug2 -#define png_debug2(l, m, p1, p2) -#endif - -extern PNG_EXPORT(png_bytep,png_sig_bytes) PNGARG((void)); - -extern PNG_EXPORT(png_charp,png_get_copyright) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(png_charp,png_get_header_ver) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr)); - -#ifdef PNG_MNG_FEATURES_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp - png_ptr, png_uint_32 mng_features_permitted)); -#endif - -/* Added to version 1.2.0 */ -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) -#define PNG_ASM_FLAG_MMX_SUPPORT_COMPILED 0x01 /* not user-settable */ -#define PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU 0x02 /* not user-settable */ -#define PNG_ASM_FLAG_MMX_READ_COMBINE_ROW 0x04 -#define PNG_ASM_FLAG_MMX_READ_INTERLACE 0x08 -#define PNG_ASM_FLAG_MMX_READ_FILTER_SUB 0x10 -#define PNG_ASM_FLAG_MMX_READ_FILTER_UP 0x20 -#define PNG_ASM_FLAG_MMX_READ_FILTER_AVG 0x40 -#define PNG_ASM_FLAG_MMX_READ_FILTER_PAETH 0x80 -#define PNG_ASM_FLAGS_INITIALIZED 0x80000000 /* not user-settable */ - -#define PNG_MMX_READ_FLAGS ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \ - | PNG_ASM_FLAG_MMX_READ_INTERLACE \ - | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \ - | PNG_ASM_FLAG_MMX_READ_FILTER_UP \ - | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \ - | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ) -#define PNG_MMX_WRITE_FLAGS ( 0 ) - -#define PNG_MMX_FLAGS ( PNG_ASM_FLAG_MMX_SUPPORT_COMPILED \ - | PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU \ - | PNG_MMX_READ_FLAGS \ - | PNG_MMX_WRITE_FLAGS ) - -#define PNG_SELECT_READ 1 -#define PNG_SELECT_WRITE 2 - - -#if !defined(PNG_1_0_X) -/* pngget.c */ -extern PNG_EXPORT(png_uint_32,png_get_mmx_flagmask) - PNGARG((int flag_select, int *compilerID)); - -/* pngget.c */ -extern PNG_EXPORT(png_uint_32,png_get_asm_flagmask) - PNGARG((int flag_select)); - -/* pngget.c */ -extern PNG_EXPORT(png_uint_32,png_get_asm_flags) - PNGARG((png_structp png_ptr)); - -/* pngget.c */ -extern PNG_EXPORT(png_byte,png_get_mmx_bitdepth_threshold) - PNGARG((png_structp png_ptr)); - -/* pngget.c */ -extern PNG_EXPORT(png_uint_32,png_get_mmx_rowbytes_threshold) - PNGARG((png_structp png_ptr)); - -/* pngset.c */ -extern PNG_EXPORT(void,png_set_asm_flags) - PNGARG((png_structp png_ptr, png_uint_32 asm_flags)); - -/* pngset.c */ -extern PNG_EXPORT(void,png_set_mmx_thresholds) - PNGARG((png_structp png_ptr, png_byte mmx_bitdepth_threshold, - png_uint_32 mmx_rowbytes_threshold)); - -#endif /* PNG_1_0_X */ -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - -#if !defined(PNG_1_0_X) -/* png.c, pnggccrd.c, or pngvcrd.c */ -extern PNG_EXPORT(int,png_mmx_support) PNGARG((void)); - -/* Strip the prepended error numbers ("#nnn ") from error and warning - * messages before passing them to the error or warning handler. */ -#ifdef PNG_ERROR_NUMBERS_SUPPORTED -extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp - png_ptr, png_uint_32 strip_mode)); -#endif -#endif /* PNG_1_0_X */ - -/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */ - -#define PNG_HEADER_VERSION_STRING \ - " libpng version 1.2.5 - October 3, 2002 (header)\n" - -#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED -/* With these routines we avoid an integer divide, which will be slower on - * most machines. However, it does take more operations than the corresponding - * divide method, so it may be slower on a few RISC systems. There are two - * shifts (by 8 or 16 bits) and an addition, versus a single integer divide. - * - * Note that the rounding factors are NOT supposed to be the same! 128 and - * 32768 are correct for the NODIV code; 127 and 32767 are correct for the - * standard method. - * - * [Optimized code by Greg Roelofs and Mark Adler...blame us for bugs. :-) ] - */ - - /* fg and bg should be in `gamma 1.0' space; alpha is the opacity */ - -# define png_composite(composite, fg, alpha, bg) \ - { png_uint_16 temp = (png_uint_16)((png_uint_16)(fg) * (png_uint_16)(alpha) \ - + (png_uint_16)(bg)*(png_uint_16)(255 - \ - (png_uint_16)(alpha)) + (png_uint_16)128); \ - (composite) = (png_byte)((temp + (temp >> 8)) >> 8); } - -# define png_composite_16(composite, fg, alpha, bg) \ - { png_uint_32 temp = (png_uint_32)((png_uint_32)(fg) * (png_uint_32)(alpha) \ - + (png_uint_32)(bg)*(png_uint_32)(65535L - \ - (png_uint_32)(alpha)) + (png_uint_32)32768L); \ - (composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); } - -#else /* standard method using integer division */ - -# define png_composite(composite, fg, alpha, bg) \ - (composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \ - (png_uint_16)(bg) * (png_uint_16)(255 - (png_uint_16)(alpha)) + \ - (png_uint_16)127) / 255) - -# define png_composite_16(composite, fg, alpha, bg) \ - (composite) = (png_uint_16)(((png_uint_32)(fg) * (png_uint_32)(alpha) + \ - (png_uint_32)(bg)*(png_uint_32)(65535L - (png_uint_32)(alpha)) + \ - (png_uint_32)32767) / (png_uint_32)65535L) - -#endif /* PNG_READ_COMPOSITE_NODIV_SUPPORTED */ - -/* These next functions are used internally in the code. They generally - * shouldn't be used unless you are writing code to add or replace some - * functionality in libpng. More information about most functions can - * be found in the files where the functions are located. - */ - -#if defined(PNG_INTERNAL) - -/* Various modes of operation. Note that after an init, mode is set to - * zero automatically when the structure is created. - */ -#define PNG_HAVE_IHDR 0x01 -#define PNG_HAVE_PLTE 0x02 -#define PNG_HAVE_IDAT 0x04 -#define PNG_AFTER_IDAT 0x08 -#define PNG_HAVE_IEND 0x10 -#define PNG_HAVE_gAMA 0x20 -#define PNG_HAVE_cHRM 0x40 -#define PNG_HAVE_sRGB 0x80 -#define PNG_HAVE_CHUNK_HEADER 0x100 -#define PNG_WROTE_tIME 0x200 -#define PNG_WROTE_INFO_BEFORE_PLTE 0x400 -#define PNG_BACKGROUND_IS_GRAY 0x800 -#define PNG_HAVE_PNG_SIGNATURE 0x1000 - -/* flags for the transformations the PNG library does on the image data */ -#define PNG_BGR 0x0001 -#define PNG_INTERLACE 0x0002 -#define PNG_PACK 0x0004 -#define PNG_SHIFT 0x0008 -#define PNG_SWAP_BYTES 0x0010 -#define PNG_INVERT_MONO 0x0020 -#define PNG_DITHER 0x0040 -#define PNG_BACKGROUND 0x0080 -#define PNG_BACKGROUND_EXPAND 0x0100 - /* 0x0200 unused */ -#define PNG_16_TO_8 0x0400 -#define PNG_RGBA 0x0800 -#define PNG_EXPAND 0x1000 -#define PNG_GAMMA 0x2000 -#define PNG_GRAY_TO_RGB 0x4000 -#define PNG_FILLER 0x8000L -#define PNG_PACKSWAP 0x10000L -#define PNG_SWAP_ALPHA 0x20000L -#define PNG_STRIP_ALPHA 0x40000L -#define PNG_INVERT_ALPHA 0x80000L -#define PNG_USER_TRANSFORM 0x100000L -#define PNG_RGB_TO_GRAY_ERR 0x200000L -#define PNG_RGB_TO_GRAY_WARN 0x400000L -#define PNG_RGB_TO_GRAY 0x600000L /* two bits, RGB_TO_GRAY_ERR|WARN */ - -/* flags for png_create_struct */ -#define PNG_STRUCT_PNG 0x0001 -#define PNG_STRUCT_INFO 0x0002 - -/* Scaling factor for filter heuristic weighting calculations */ -#define PNG_WEIGHT_SHIFT 8 -#define PNG_WEIGHT_FACTOR (1<<(PNG_WEIGHT_SHIFT)) -#define PNG_COST_SHIFT 3 -#define PNG_COST_FACTOR (1<<(PNG_COST_SHIFT)) - -/* flags for the png_ptr->flags rather than declaring a byte for each one */ -#define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001 -#define PNG_FLAG_ZLIB_CUSTOM_LEVEL 0x0002 -#define PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL 0x0004 -#define PNG_FLAG_ZLIB_CUSTOM_WINDOW_BITS 0x0008 -#define PNG_FLAG_ZLIB_CUSTOM_METHOD 0x0010 -#define PNG_FLAG_ZLIB_FINISHED 0x0020 -#define PNG_FLAG_ROW_INIT 0x0040 -#define PNG_FLAG_FILLER_AFTER 0x0080 -#define PNG_FLAG_CRC_ANCILLARY_USE 0x0100 -#define PNG_FLAG_CRC_ANCILLARY_NOWARN 0x0200 -#define PNG_FLAG_CRC_CRITICAL_USE 0x0400 -#define PNG_FLAG_CRC_CRITICAL_IGNORE 0x0800 -#define PNG_FLAG_FREE_PLTE 0x1000 -#define PNG_FLAG_FREE_TRNS 0x2000 -#define PNG_FLAG_FREE_HIST 0x4000 -#define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000L -#define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000L -#define PNG_FLAG_LIBRARY_MISMATCH 0x20000L -#define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000L -#define PNG_FLAG_STRIP_ERROR_TEXT 0x80000L -#define PNG_FLAG_MALLOC_NULL_MEM_OK 0x100000L - -/* For use in png_set_keep_unknown, png_handle_as_unknown */ -#define HANDLE_CHUNK_AS_DEFAULT 0 -#define HANDLE_CHUNK_NEVER 1 -#define HANDLE_CHUNK_IF_SAFE 2 -#define HANDLE_CHUNK_ALWAYS 3 - -#define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \ - PNG_FLAG_CRC_ANCILLARY_NOWARN) - -#define PNG_FLAG_CRC_CRITICAL_MASK (PNG_FLAG_CRC_CRITICAL_USE | \ - PNG_FLAG_CRC_CRITICAL_IGNORE) - -#define PNG_FLAG_CRC_MASK (PNG_FLAG_CRC_ANCILLARY_MASK | \ - PNG_FLAG_CRC_CRITICAL_MASK) - -/* save typing and make code easier to understand */ -#define PNG_COLOR_DIST(c1, c2) (abs((int)((c1).red) - (int)((c2).red)) + \ - abs((int)((c1).green) - (int)((c2).green)) + \ - abs((int)((c1).blue) - (int)((c2).blue))) - -/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */ -#if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN) -/* place to hold the signature string for a PNG file. */ -#ifdef PNG_USE_GLOBAL_ARRAYS - PNG_EXPORT_VAR (const png_byte FARDATA) png_sig[8]; -#else -#define png_sig png_sig_bytes(NULL) -#endif -#endif /* PNG_NO_EXTERN */ - -/* Constant strings for known chunk types. If you need to add a chunk, - * define the name here, and add an invocation of the macro in png.c and - * wherever it's needed. - */ -#define PNG_IHDR const png_byte png_IHDR[5] = { 73, 72, 68, 82, '\0'} -#define PNG_IDAT const png_byte png_IDAT[5] = { 73, 68, 65, 84, '\0'} -#define PNG_IEND const png_byte png_IEND[5] = { 73, 69, 78, 68, '\0'} -#define PNG_PLTE const png_byte png_PLTE[5] = { 80, 76, 84, 69, '\0'} -#define PNG_bKGD const png_byte png_bKGD[5] = { 98, 75, 71, 68, '\0'} -#define PNG_cHRM const png_byte png_cHRM[5] = { 99, 72, 82, 77, '\0'} -#define PNG_gAMA const png_byte png_gAMA[5] = {103, 65, 77, 65, '\0'} -#define PNG_hIST const png_byte png_hIST[5] = {104, 73, 83, 84, '\0'} -#define PNG_iCCP const png_byte png_iCCP[5] = {105, 67, 67, 80, '\0'} -#define PNG_iTXt const png_byte png_iTXt[5] = {105, 84, 88, 116, '\0'} -#define PNG_oFFs const png_byte png_oFFs[5] = {111, 70, 70, 115, '\0'} -#define PNG_pCAL const png_byte png_pCAL[5] = {112, 67, 65, 76, '\0'} -#define PNG_sCAL const png_byte png_sCAL[5] = {115, 67, 65, 76, '\0'} -#define PNG_pHYs const png_byte png_pHYs[5] = {112, 72, 89, 115, '\0'} -#define PNG_sBIT const png_byte png_sBIT[5] = {115, 66, 73, 84, '\0'} -#define PNG_sPLT const png_byte png_sPLT[5] = {115, 80, 76, 84, '\0'} -#define PNG_sRGB const png_byte png_sRGB[5] = {115, 82, 71, 66, '\0'} -#define PNG_tEXt const png_byte png_tEXt[5] = {116, 69, 88, 116, '\0'} -#define PNG_tIME const png_byte png_tIME[5] = {116, 73, 77, 69, '\0'} -#define PNG_tRNS const png_byte png_tRNS[5] = {116, 82, 78, 83, '\0'} -#define PNG_zTXt const png_byte png_zTXt[5] = {122, 84, 88, 116, '\0'} - -#ifdef PNG_USE_GLOBAL_ARRAYS -PNG_EXPORT_VAR (const png_byte FARDATA) png_IHDR[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_IDAT[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_IEND[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_PLTE[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_bKGD[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_cHRM[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_gAMA[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_hIST[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_iCCP[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_iTXt[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_oFFs[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_pCAL[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_sCAL[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_pHYs[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_sBIT[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_sPLT[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_sRGB[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_tEXt[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_tIME[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_tRNS[5]; -PNG_EXPORT_VAR (const png_byte FARDATA) png_zTXt[5]; -#endif /* PNG_USE_GLOBAL_ARRAYS */ - - -/* Inline macros to do direct reads of bytes from the input buffer. These - * require that you are using an architecture that uses PNG byte ordering - * (MSB first) and supports unaligned data storage. I think that PowerPC - * in big-endian mode and 680x0 are the only ones that will support this. - * The x86 line of processors definitely do not. The png_get_int_32() - * routine also assumes we are using two's complement format for negative - * values, which is almost certainly true. - */ -#if defined(PNG_READ_BIG_ENDIAN_SUPPORTED) -# if defined(PNG_pCAL_SUPPORTED) || defined(PNG_oFFs_SUPPORTED) -# define png_get_int_32(buf) ( *((png_int_32p) (buf))) -# endif -# define png_get_uint_32(buf) ( *((png_uint_32p) (buf))) -# define png_get_uint_16(buf) ( *((png_uint_16p) (buf))) -#else -# if defined(PNG_pCAL_SUPPORTED) || defined(PNG_oFFs_SUPPORTED) -PNG_EXTERN png_int_32 png_get_int_32 PNGARG((png_bytep buf)); -# endif -PNG_EXTERN png_uint_32 png_get_uint_32 PNGARG((png_bytep buf)); -PNG_EXTERN png_uint_16 png_get_uint_16 PNGARG((png_bytep buf)); -#endif /* !PNG_READ_BIG_ENDIAN_SUPPORTED */ - -/* Initialize png_ptr struct for reading, and allocate any other memory. - * (old interface - DEPRECATED - use png_create_read_struct instead). - */ -extern PNG_EXPORT(void,png_read_init) PNGARG((png_structp png_ptr)); -#undef png_read_init -#define png_read_init(png_ptr) png_read_init_3(&png_ptr, \ - PNG_LIBPNG_VER_STRING, sizeof(png_struct)); -extern PNG_EXPORT(void,png_read_init_3) PNGARG((png_structpp ptr_ptr, - png_const_charp user_png_ver, png_size_t png_struct_size)); -extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr, - png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t - png_info_size)); - -/* Initialize png_ptr struct for writing, and allocate any other memory. - * (old interface - DEPRECATED - use png_create_write_struct instead). - */ -extern PNG_EXPORT(void,png_write_init) PNGARG((png_structp png_ptr)); -#undef png_write_init -#define png_write_init(png_ptr) png_write_init_3(&png_ptr, \ - PNG_LIBPNG_VER_STRING, sizeof(png_struct)); -extern PNG_EXPORT(void,png_write_init_3) PNGARG((png_structpp ptr_ptr, - png_const_charp user_png_ver, png_size_t png_struct_size)); -extern PNG_EXPORT(void,png_write_init_2) PNGARG((png_structp png_ptr, - png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t - png_info_size)); - -/* Allocate memory for an internal libpng struct */ -PNG_EXTERN png_voidp png_create_struct PNGARG((int type)); - -/* Free memory from internal libpng struct */ -PNG_EXTERN void png_destroy_struct PNGARG((png_voidp struct_ptr)); - -PNG_EXTERN png_voidp png_create_struct_2 PNGARG((int type, png_malloc_ptr - malloc_fn, png_voidp mem_ptr)); -PNG_EXTERN void png_destroy_struct_2 PNGARG((png_voidp struct_ptr, - png_free_ptr free_fn, png_voidp mem_ptr)); - -/* Free any memory that info_ptr points to and reset struct. */ -PNG_EXTERN void png_info_destroy PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -#ifndef PNG_1_0_X -/* Function to allocate memory for zlib. */ -PNG_EXTERN voidpf png_zalloc PNGARG((voidpf png_ptr, uInt items, uInt size)); - -/* Function to free memory for zlib */ -PNG_EXTERN void png_zfree PNGARG((voidpf png_ptr, voidpf ptr)); - -/* Next four functions are used internally as callbacks. PNGAPI is required - * but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3. */ - -PNG_EXTERN void PNGAPI png_default_read_data PNGARG((png_structp png_ptr, - png_bytep data, png_size_t length)); - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -PNG_EXTERN void PNGAPI png_push_fill_buffer PNGARG((png_structp png_ptr, - png_bytep buffer, png_size_t length)); -#endif - -PNG_EXTERN void PNGAPI png_default_write_data PNGARG((png_structp png_ptr, - png_bytep data, png_size_t length)); - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -#if !defined(PNG_NO_STDIO) -PNG_EXTERN void PNGAPI png_default_flush PNGARG((png_structp png_ptr)); -#endif -#endif -#else /* PNG_1_0_X */ -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -PNG_EXTERN void png_push_fill_buffer PNGARG((png_structp png_ptr, - png_bytep buffer, png_size_t length)); -#endif -#endif /* PNG_1_0_X */ - -/* Reset the CRC variable */ -PNG_EXTERN void png_reset_crc PNGARG((png_structp png_ptr)); - -/* Write the "data" buffer to whatever output you are using. */ -PNG_EXTERN void png_write_data PNGARG((png_structp png_ptr, png_bytep data, - png_size_t length)); - -/* Read data from whatever input you are using into the "data" buffer */ -PNG_EXTERN void png_read_data PNGARG((png_structp png_ptr, png_bytep data, - png_size_t length)); - -/* Read bytes into buf, and update png_ptr->crc */ -PNG_EXTERN void png_crc_read PNGARG((png_structp png_ptr, png_bytep buf, - png_size_t length)); - -/* Decompress data in a chunk that uses compression */ -#if defined(PNG_zTXt_SUPPORTED) || defined(PNG_iTXt_SUPPORTED) || \ - defined(PNG_iCCP_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) -PNG_EXTERN png_charp png_decompress_chunk PNGARG((png_structp png_ptr, - int comp_type, png_charp chunkdata, png_size_t chunklength, - png_size_t prefix_length, png_size_t *data_length)); -#endif - -/* Read "skip" bytes, read the file crc, and (optionally) verify png_ptr->crc */ -PNG_EXTERN int png_crc_finish PNGARG((png_structp png_ptr, png_uint_32 skip)); - -/* Read the CRC from the file and compare it to the libpng calculated CRC */ -PNG_EXTERN int png_crc_error PNGARG((png_structp png_ptr)); - -/* Calculate the CRC over a section of data. Note that we are only - * passing a maximum of 64K on systems that have this as a memory limit, - * since this is the maximum buffer size we can specify. - */ -PNG_EXTERN void png_calculate_crc PNGARG((png_structp png_ptr, png_bytep ptr, - png_size_t length)); - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -PNG_EXTERN void png_flush PNGARG((png_structp png_ptr)); -#endif - - -/* Place a 32-bit number into a buffer in PNG byte order (big-endian). - * The only currently known PNG chunks that use signed numbers are - * the ancillary extension chunks, oFFs and pCAL. - */ -PNG_EXTERN void png_save_uint_32 PNGARG((png_bytep buf, png_uint_32 i)); - -#if defined(PNG_WRITE_pCAL_SUPPORTED) || defined(PNG_WRITE_oFFs_SUPPORTED) -PNG_EXTERN void png_save_int_32 PNGARG((png_bytep buf, png_int_32 i)); -#endif - -/* Place a 16-bit number into a buffer in PNG byte order. - * The parameter is declared unsigned int, not png_uint_16, - * just to avoid potential problems on pre-ANSI C compilers. - */ -PNG_EXTERN void png_save_uint_16 PNGARG((png_bytep buf, unsigned int i)); - -/* simple function to write the signature */ -PNG_EXTERN void png_write_sig PNGARG((png_structp png_ptr)); - -/* write various chunks */ - -/* Write the IHDR chunk, and update the png_struct with the necessary - * information. - */ -PNG_EXTERN void png_write_IHDR PNGARG((png_structp png_ptr, png_uint_32 width, - png_uint_32 height, - int bit_depth, int color_type, int compression_method, int filter_method, - int interlace_method)); - -PNG_EXTERN void png_write_PLTE PNGARG((png_structp png_ptr, png_colorp palette, - png_uint_32 num_pal)); - -PNG_EXTERN void png_write_IDAT PNGARG((png_structp png_ptr, png_bytep data, - png_size_t length)); - -PNG_EXTERN void png_write_IEND PNGARG((png_structp png_ptr)); - -#if defined(PNG_WRITE_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -PNG_EXTERN void png_write_gAMA PNGARG((png_structp png_ptr, double file_gamma)); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -PNG_EXTERN void png_write_gAMA_fixed PNGARG((png_structp png_ptr, png_fixed_point - file_gamma)); -#endif -#endif - -#if defined(PNG_WRITE_sBIT_SUPPORTED) -PNG_EXTERN void png_write_sBIT PNGARG((png_structp png_ptr, png_color_8p sbit, - int color_type)); -#endif - -#if defined(PNG_WRITE_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -PNG_EXTERN void png_write_cHRM PNGARG((png_structp png_ptr, - double white_x, double white_y, - double red_x, double red_y, double green_x, double green_y, - double blue_x, double blue_y)); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -PNG_EXTERN void png_write_cHRM_fixed PNGARG((png_structp png_ptr, - png_fixed_point int_white_x, png_fixed_point int_white_y, - png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point - int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, - png_fixed_point int_blue_y)); -#endif -#endif - -#if defined(PNG_WRITE_sRGB_SUPPORTED) -PNG_EXTERN void png_write_sRGB PNGARG((png_structp png_ptr, - int intent)); -#endif - -#if defined(PNG_WRITE_iCCP_SUPPORTED) -PNG_EXTERN void png_write_iCCP PNGARG((png_structp png_ptr, - png_charp name, int compression_type, - png_charp profile, int proflen)); - /* Note to maintainer: profile should be png_bytep */ -#endif - -#if defined(PNG_WRITE_sPLT_SUPPORTED) -PNG_EXTERN void png_write_sPLT PNGARG((png_structp png_ptr, - png_sPLT_tp palette)); -#endif - -#if defined(PNG_WRITE_tRNS_SUPPORTED) -PNG_EXTERN void png_write_tRNS PNGARG((png_structp png_ptr, png_bytep trans, - png_color_16p values, int number, int color_type)); -#endif - -#if defined(PNG_WRITE_bKGD_SUPPORTED) -PNG_EXTERN void png_write_bKGD PNGARG((png_structp png_ptr, - png_color_16p values, int color_type)); -#endif - -#if defined(PNG_WRITE_hIST_SUPPORTED) -PNG_EXTERN void png_write_hIST PNGARG((png_structp png_ptr, png_uint_16p hist, - int num_hist)); -#endif - -#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_pCAL_SUPPORTED) || \ - defined(PNG_WRITE_iCCP_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED) -PNG_EXTERN png_size_t png_check_keyword PNGARG((png_structp png_ptr, - png_charp key, png_charpp new_key)); -#endif - -#if defined(PNG_WRITE_tEXt_SUPPORTED) -PNG_EXTERN void png_write_tEXt PNGARG((png_structp png_ptr, png_charp key, - png_charp text, png_size_t text_len)); -#endif - -#if defined(PNG_WRITE_zTXt_SUPPORTED) -PNG_EXTERN void png_write_zTXt PNGARG((png_structp png_ptr, png_charp key, - png_charp text, png_size_t text_len, int compression)); -#endif - -#if defined(PNG_WRITE_iTXt_SUPPORTED) -PNG_EXTERN void png_write_iTXt PNGARG((png_structp png_ptr, - int compression, png_charp key, png_charp lang, png_charp lang_key, - png_charp text)); -#endif - -#if defined(PNG_TEXT_SUPPORTED) /* Added at version 1.0.14 and 1.2.4 */ -PNG_EXTERN int png_set_text_2 PNGARG((png_structp png_ptr, - png_infop info_ptr, png_textp text_ptr, int num_text)); -#endif - -#if defined(PNG_WRITE_oFFs_SUPPORTED) -PNG_EXTERN void png_write_oFFs PNGARG((png_structp png_ptr, - png_int_32 x_offset, png_int_32 y_offset, int unit_type)); -#endif - -#if defined(PNG_WRITE_pCAL_SUPPORTED) -PNG_EXTERN void png_write_pCAL PNGARG((png_structp png_ptr, png_charp purpose, - png_int_32 X0, png_int_32 X1, int type, int nparams, - png_charp units, png_charpp params)); -#endif - -#if defined(PNG_WRITE_pHYs_SUPPORTED) -PNG_EXTERN void png_write_pHYs PNGARG((png_structp png_ptr, - png_uint_32 x_pixels_per_unit, png_uint_32 y_pixels_per_unit, - int unit_type)); -#endif - -#if defined(PNG_WRITE_tIME_SUPPORTED) -PNG_EXTERN void png_write_tIME PNGARG((png_structp png_ptr, - png_timep mod_time)); -#endif - -#if defined(PNG_WRITE_sCAL_SUPPORTED) -#if defined(PNG_FLOATING_POINT_SUPPORTED) && !defined(PNG_NO_STDIO) -PNG_EXTERN void png_write_sCAL PNGARG((png_structp png_ptr, - int unit, double width, double height)); -#else -#ifdef PNG_FIXED_POINT_SUPPORTED -PNG_EXTERN void png_write_sCAL_s PNGARG((png_structp png_ptr, - int unit, png_charp width, png_charp height)); -#endif -#endif -#endif - -/* Called when finished processing a row of data */ -PNG_EXTERN void png_write_finish_row PNGARG((png_structp png_ptr)); - -/* Internal use only. Called before first row of data */ -PNG_EXTERN void png_write_start_row PNGARG((png_structp png_ptr)); - -#if defined(PNG_READ_GAMMA_SUPPORTED) -PNG_EXTERN void png_build_gamma_table PNGARG((png_structp png_ptr)); -#endif - -/* combine a row of data, dealing with alpha, etc. if requested */ -PNG_EXTERN void png_combine_row PNGARG((png_structp png_ptr, png_bytep row, - int mask)); - -#if defined(PNG_READ_INTERLACING_SUPPORTED) -/* expand an interlaced row */ -/* OLD pre-1.0.9 interface: -PNG_EXTERN void png_do_read_interlace PNGARG((png_row_infop row_info, - png_bytep row, int pass, png_uint_32 transformations)); - */ -PNG_EXTERN void png_do_read_interlace PNGARG((png_structp png_ptr)); -#endif - -/* GRR TO DO (2.0 or whenever): simplify other internal calling interfaces */ - -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) -/* grab pixels out of a row for an interlaced pass */ -PNG_EXTERN void png_do_write_interlace PNGARG((png_row_infop row_info, - png_bytep row, int pass)); -#endif - -/* unfilter a row */ -PNG_EXTERN void png_read_filter_row PNGARG((png_structp png_ptr, - png_row_infop row_info, png_bytep row, png_bytep prev_row, int filter)); - -/* Choose the best filter to use and filter the row data */ -PNG_EXTERN void png_write_find_filter PNGARG((png_structp png_ptr, - png_row_infop row_info)); - -/* Write out the filtered row. */ -PNG_EXTERN void png_write_filtered_row PNGARG((png_structp png_ptr, - png_bytep filtered_row)); -/* finish a row while reading, dealing with interlacing passes, etc. */ -PNG_EXTERN void png_read_finish_row PNGARG((png_structp png_ptr)); - -/* initialize the row buffers, etc. */ -PNG_EXTERN void png_read_start_row PNGARG((png_structp png_ptr)); -/* optional call to update the users info structure */ -PNG_EXTERN void png_read_transform_info PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -/* these are the functions that do the transformations */ -#if defined(PNG_READ_FILLER_SUPPORTED) -PNG_EXTERN void png_do_read_filler PNGARG((png_row_infop row_info, - png_bytep row, png_uint_32 filler, png_uint_32 flags)); -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_read_swap_alpha PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_write_swap_alpha PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_read_invert_alpha PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_write_invert_alpha PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_WRITE_FILLER_SUPPORTED) || \ - defined(PNG_READ_STRIP_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_strip_filler PNGARG((png_row_infop row_info, - png_bytep row, png_uint_32 flags)); -#endif - -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -PNG_EXTERN void png_do_swap PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) || defined(PNG_WRITE_PACKSWAP_SUPPORTED) -PNG_EXTERN void png_do_packswap PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) -PNG_EXTERN int png_do_rgb_to_gray PNGARG((png_structp png_ptr, png_row_infop - row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) -PNG_EXTERN void png_do_gray_to_rgb PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) -PNG_EXTERN void png_do_unpack PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) -PNG_EXTERN void png_do_unshift PNGARG((png_row_infop row_info, png_bytep row, - png_color_8p sig_bits)); -#endif - -#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) -PNG_EXTERN void png_do_invert PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) -PNG_EXTERN void png_do_chop PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) -PNG_EXTERN void png_do_dither PNGARG((png_row_infop row_info, - png_bytep row, png_bytep palette_lookup, png_bytep dither_lookup)); - -# if defined(PNG_CORRECT_PALETTE_SUPPORTED) -PNG_EXTERN void png_correct_palette PNGARG((png_structp png_ptr, - png_colorp palette, int num_palette)); -# endif -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -PNG_EXTERN void png_do_bgr PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_WRITE_PACK_SUPPORTED) -PNG_EXTERN void png_do_pack PNGARG((png_row_infop row_info, - png_bytep row, png_uint_32 bit_depth)); -#endif - -#if defined(PNG_WRITE_SHIFT_SUPPORTED) -PNG_EXTERN void png_do_shift PNGARG((png_row_infop row_info, png_bytep row, - png_color_8p bit_depth)); -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) -#if defined(PNG_READ_GAMMA_SUPPORTED) -PNG_EXTERN void png_do_background PNGARG((png_row_infop row_info, png_bytep row, - png_color_16p trans_values, png_color_16p background, - png_color_16p background_1, - png_bytep gamma_table, png_bytep gamma_from_1, png_bytep gamma_to_1, - png_uint_16pp gamma_16, png_uint_16pp gamma_16_from_1, - png_uint_16pp gamma_16_to_1, int gamma_shift)); -#else -PNG_EXTERN void png_do_background PNGARG((png_row_infop row_info, png_bytep row, - png_color_16p trans_values, png_color_16p background)); -#endif -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) -PNG_EXTERN void png_do_gamma PNGARG((png_row_infop row_info, png_bytep row, - png_bytep gamma_table, png_uint_16pp gamma_16_table, - int gamma_shift)); -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) -PNG_EXTERN void png_do_expand_palette PNGARG((png_row_infop row_info, - png_bytep row, png_colorp palette, png_bytep trans, int num_trans)); -PNG_EXTERN void png_do_expand PNGARG((png_row_infop row_info, - png_bytep row, png_color_16p trans_value)); -#endif - -/* The following decodes the appropriate chunks, and does error correction, - * then calls the appropriate callback for the chunk if it is valid. - */ - -/* decode the IHDR chunk */ -PNG_EXTERN void png_handle_IHDR PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -PNG_EXTERN void png_handle_PLTE PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -PNG_EXTERN void png_handle_IEND PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); - -#if defined(PNG_READ_bKGD_SUPPORTED) -PNG_EXTERN void png_handle_bKGD PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_cHRM_SUPPORTED) -PNG_EXTERN void png_handle_cHRM PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_gAMA_SUPPORTED) -PNG_EXTERN void png_handle_gAMA PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_hIST_SUPPORTED) -PNG_EXTERN void png_handle_hIST PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_iCCP_SUPPORTED) -extern void png_handle_iCCP PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif /* PNG_READ_iCCP_SUPPORTED */ - -#if defined(PNG_READ_iTXt_SUPPORTED) -PNG_EXTERN void png_handle_iTXt PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_oFFs_SUPPORTED) -PNG_EXTERN void png_handle_oFFs PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_pCAL_SUPPORTED) -PNG_EXTERN void png_handle_pCAL PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_pHYs_SUPPORTED) -PNG_EXTERN void png_handle_pHYs PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_sBIT_SUPPORTED) -PNG_EXTERN void png_handle_sBIT PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_sCAL_SUPPORTED) -PNG_EXTERN void png_handle_sCAL PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_sPLT_SUPPORTED) -extern void png_handle_sPLT PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif /* PNG_READ_sPLT_SUPPORTED */ - -#if defined(PNG_READ_sRGB_SUPPORTED) -PNG_EXTERN void png_handle_sRGB PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_tEXt_SUPPORTED) -PNG_EXTERN void png_handle_tEXt PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_tIME_SUPPORTED) -PNG_EXTERN void png_handle_tIME PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_tRNS_SUPPORTED) -PNG_EXTERN void png_handle_tRNS PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_zTXt_SUPPORTED) -PNG_EXTERN void png_handle_zTXt PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -PNG_EXTERN void png_handle_unknown PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); - -PNG_EXTERN void png_check_chunk_name PNGARG((png_structp png_ptr, - png_bytep chunk_name)); - -/* handle the transformations for reading and writing */ -PNG_EXTERN void png_do_read_transformations PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_do_write_transformations PNGARG((png_structp png_ptr)); - -PNG_EXTERN void png_init_read_transformations PNGARG((png_structp png_ptr)); - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -PNG_EXTERN void png_push_read_chunk PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_push_read_sig PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_push_check_crc PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_push_crc_skip PNGARG((png_structp png_ptr, - png_uint_32 length)); -PNG_EXTERN void png_push_crc_finish PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_push_save_buffer PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_push_restore_buffer PNGARG((png_structp png_ptr, - png_bytep buffer, png_size_t buffer_length)); -PNG_EXTERN void png_push_read_IDAT PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_process_IDAT_data PNGARG((png_structp png_ptr, - png_bytep buffer, png_size_t buffer_length)); -PNG_EXTERN void png_push_process_row PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_push_handle_unknown PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); -PNG_EXTERN void png_push_have_info PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_push_have_end PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_push_have_row PNGARG((png_structp png_ptr, png_bytep row)); -PNG_EXTERN void png_push_read_end PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_process_some_data PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_read_push_finish_row PNGARG((png_structp png_ptr)); -#if defined(PNG_READ_tEXt_SUPPORTED) -PNG_EXTERN void png_push_handle_tEXt PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); -PNG_EXTERN void png_push_read_tEXt PNGARG((png_structp png_ptr, - png_infop info_ptr)); -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) -PNG_EXTERN void png_push_handle_zTXt PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); -PNG_EXTERN void png_push_read_zTXt PNGARG((png_structp png_ptr, - png_infop info_ptr)); -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) -PNG_EXTERN void png_push_handle_iTXt PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); -PNG_EXTERN void png_push_read_iTXt PNGARG((png_structp png_ptr, - png_infop info_ptr)); -#endif - -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ - -#ifdef PNG_MNG_FEATURES_SUPPORTED -PNG_EXTERN void png_do_read_intrapixel PNGARG((png_row_infop row_info, - png_bytep row)); -PNG_EXTERN void png_do_write_intrapixel PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) -/* png.c */ /* PRIVATE */ -PNG_EXTERN void png_init_mmx_flags PNGARG((png_structp png_ptr)); -#endif -/* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */ - -#endif /* PNG_INTERNAL */ - -#ifdef __cplusplus -} -#endif - -#endif /* PNG_VERSION_INFO_ONLY */ -/* do not put anything past this line */ -#endif /* PNG_H */ diff --git a/collects/plot/src/all/pngasmrd.h b/collects/plot/src/all/pngasmrd.h deleted file mode 100644 index d086d8c4dd..0000000000 --- a/collects/plot/src/all/pngasmrd.h +++ /dev/null @@ -1,11 +0,0 @@ -/* pngasmrd.h - assembler version of utilities to read a PNG file - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 2002 Glenn Randers-Pehrson - * - */ - -/* This file is obsolete in libpng-1.0.9 and later; its contents now appear - * at the end of pngconf.h. - */ diff --git a/collects/plot/src/all/pngconf.h b/collects/plot/src/all/pngconf.h deleted file mode 100644 index 95835ec2c4..0000000000 --- a/collects/plot/src/all/pngconf.h +++ /dev/null @@ -1,1348 +0,0 @@ -/* pngconf.h - machine configurable file for libpng - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -/* Any machine specific code is near the front of this file, so if you - * are configuring libpng for a machine, you may want to read the section - * starting here down to where it starts to typedef png_color, png_text, - * and png_info. - */ - -#ifndef PNGCONF_H -#define PNGCONF_H - -/* This is the size of the compression buffer, and thus the size of - * an IDAT chunk. Make this whatever size you feel is best for your - * machine. One of these will be allocated per png_struct. When this - * is full, it writes the data to the disk, and does some other - * calculations. Making this an extremely small size will slow - * the library down, but you may want to experiment to determine - * where it becomes significant, if you are concerned with memory - * usage. Note that zlib allocates at least 32Kb also. For readers, - * this describes the size of the buffer available to read the data in. - * Unless this gets smaller than the size of a row (compressed), - * it should not make much difference how big this is. - */ - -#ifndef PNG_ZBUF_SIZE -# define PNG_ZBUF_SIZE 8192 -#endif - -/* Enable if you want a write-only libpng */ - -#ifndef PNG_NO_READ_SUPPORTED -# define PNG_READ_SUPPORTED -#endif - -/* Enable if you want a read-only libpng */ - -#ifndef PNG_NO_WRITE_SUPPORTED -# define PNG_WRITE_SUPPORTED -#endif - -/* Enabled by default in 1.2.0. You can disable this if you don't need to - support PNGs that are embedded in MNG datastreams */ -#if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES) -# ifndef PNG_MNG_FEATURES_SUPPORTED -# define PNG_MNG_FEATURES_SUPPORTED -# endif -#endif - -#ifndef PNG_NO_FLOATING_POINT_SUPPORTED -# ifndef PNG_FLOATING_POINT_SUPPORTED -# define PNG_FLOATING_POINT_SUPPORTED -# endif -#endif - -/* If you are running on a machine where you cannot allocate more - * than 64K of memory at once, uncomment this. While libpng will not - * normally need that much memory in a chunk (unless you load up a very - * large file), zlib needs to know how big of a chunk it can use, and - * libpng thus makes sure to check any memory allocation to verify it - * will fit into memory. -#define PNG_MAX_MALLOC_64K - */ -#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) -# define PNG_MAX_MALLOC_64K -#endif - -/* Special munging to support doing things the 'cygwin' way: - * 'Normal' png-on-win32 defines/defaults: - * PNG_BUILD_DLL -- building dll - * PNG_USE_DLL -- building an application, linking to dll - * (no define) -- building static library, or building an - * application and linking to the static lib - * 'Cygwin' defines/defaults: - * PNG_BUILD_DLL -- (ignored) building the dll - * (no define) -- (ignored) building an application, linking to the dll - * PNG_STATIC -- (ignored) building the static lib, or building an - * application that links to the static lib. - * ALL_STATIC -- (ignored) building various static libs, or building an - * application that links to the static libs. - * Thus, - * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and - * this bit of #ifdefs will define the 'correct' config variables based on - * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but - * unnecessary. - * - * Also, the precedence order is: - * ALL_STATIC (since we can't #undef something outside our namespace) - * PNG_BUILD_DLL - * PNG_STATIC - * (nothing) == PNG_USE_DLL - * - * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent - * of auto-import in binutils, we no longer need to worry about - * __declspec(dllexport) / __declspec(dllimport) and friends. Therefore, - * we don't need to worry about PNG_STATIC or ALL_STATIC when it comes - * to __declspec() stuff. However, we DO need to worry about - * PNG_BUILD_DLL and PNG_STATIC because those change some defaults - * such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed. - */ -#if defined(__CYGWIN__) -# if defined(ALL_STATIC) -# if defined(PNG_BUILD_DLL) -# undef PNG_BUILD_DLL -# endif -# if defined(PNG_USE_DLL) -# undef PNG_USE_DLL -# endif -# if defined(PNG_DLL) -# undef PNG_DLL -# endif -# if !defined(PNG_STATIC) -# define PNG_STATIC -# endif -# else -# if defined (PNG_BUILD_DLL) -# if defined(PNG_STATIC) -# undef PNG_STATIC -# endif -# if defined(PNG_USE_DLL) -# undef PNG_USE_DLL -# endif -# if !defined(PNG_DLL) -# define PNG_DLL -# endif -# else -# if defined(PNG_STATIC) -# if defined(PNG_USE_DLL) -# undef PNG_USE_DLL -# endif -# if defined(PNG_DLL) -# undef PNG_DLL -# endif -# else -# if !defined(PNG_USE_DLL) -# define PNG_USE_DLL -# endif -# if !defined(PNG_DLL) -# define PNG_DLL -# endif -# endif -# endif -# endif -#endif - -/* This protects us against compilers that run on a windowing system - * and thus don't have or would rather us not use the stdio types: - * stdin, stdout, and stderr. The only one currently used is stderr - * in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will - * prevent these from being compiled and used. #defining PNG_NO_STDIO - * will also prevent these, plus will prevent the entire set of stdio - * macros and functions (FILE *, printf, etc.) from being compiled and used, - * unless (PNG_DEBUG > 0) has been #defined. - * - * #define PNG_NO_CONSOLE_IO - * #define PNG_NO_STDIO - */ - -#if defined(_WIN32_WCE) -# include - /* Console I/O functions are not supported on WindowsCE */ -# define PNG_NO_CONSOLE_IO -# ifdef PNG_DEBUG -# undef PNG_DEBUG -# endif -#endif - -#ifdef PNG_BUILD_DLL -# ifndef PNG_CONSOLE_IO_SUPPORTED -# ifndef PNG_NO_CONSOLE_IO -# define PNG_NO_CONSOLE_IO -# endif -# endif -#endif - -# ifdef PNG_NO_STDIO -# ifndef PNG_NO_CONSOLE_IO -# define PNG_NO_CONSOLE_IO -# endif -# ifdef PNG_DEBUG -# if (PNG_DEBUG > 0) -# include -# endif -# endif -# else -# if !defined(_WIN32_WCE) -/* "stdio.h" functions are not supported on WindowsCE */ -# include -# endif -# endif - -/* This macro protects us against machines that don't have function - * prototypes (ie K&R style headers). If your compiler does not handle - * function prototypes, define this macro and use the included ansi2knr. - * I've always been able to use _NO_PROTO as the indicator, but you may - * need to drag the empty declaration out in front of here, or change the - * ifdef to suit your own needs. - */ -#ifndef PNGARG - -#ifdef OF /* zlib prototype munger */ -# define PNGARG(arglist) OF(arglist) -#else - -#ifdef _NO_PROTO -# define PNGARG(arglist) () -# ifndef PNG_TYPECAST_NULL -# define PNG_TYPECAST_NULL -# endif -#else -# define PNGARG(arglist) arglist -#endif /* _NO_PROTO */ - -#endif /* OF */ - -#endif /* PNGARG */ - -/* Try to determine if we are compiling on a Mac. Note that testing for - * just __MWERKS__ is not good enough, because the Codewarrior is now used - * on non-Mac platforms. - */ -#ifndef MACOS -# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ - defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC) || defined(FOR_MAC) -# define MACOS -# endif -#endif - -/* enough people need this for various reasons to include it here */ -#if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE) -# include -#endif - -#if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED) -# define PNG_SETJMP_SUPPORTED -#endif - -#ifdef PNG_SETJMP_SUPPORTED -/* This is an attempt to force a single setjmp behaviour on Linux. If - * the X config stuff didn't define _BSD_SOURCE we wouldn't need this. - */ - -# ifdef __linux__ -# ifdef _BSD_SOURCE -# define PNG_SAVE_BSD_SOURCE -# undef _BSD_SOURCE -# endif -# ifdef _SETJMP_H - __png.h__ already includes setjmp.h; - __dont__ include it again.; -# endif -# endif /* __linux__ */ - - /* include setjmp.h for error handling */ -# include - -# ifdef __linux__ -# ifdef PNG_SAVE_BSD_SOURCE -# define _BSD_SOURCE -# undef PNG_SAVE_BSD_SOURCE -# endif -# endif /* __linux__ */ -#endif /* PNG_SETJMP_SUPPORTED */ - -#ifdef BSD -# include -#else -# include -#endif - -/* Other defines for things like memory and the like can go here. */ -#ifdef PNG_INTERNAL - -#include - -/* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which - * aren't usually used outside the library (as far as I know), so it is - * debatable if they should be exported at all. In the future, when it is - * possible to have run-time registry of chunk-handling functions, some of - * these will be made available again. -#define PNG_EXTERN extern - */ -#define PNG_EXTERN - -/* Other defines specific to compilers can go here. Try to keep - * them inside an appropriate ifdef/endif pair for portability. - */ - -#if defined(PNG_FLOATING_POINT_SUPPORTED) -# if defined(MACOS) - /* We need to check that hasn't already been included earlier - * as it seems it doesn't agree with , yet we should really use - * if possible. - */ -# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) -# include -# endif -# else -# include -# endif -# if defined(_AMIGA) && defined(__SASC) && defined(_M68881) - /* Amiga SAS/C: We must include builtin FPU functions when compiling using - * MATH=68881 - */ -# include -# endif -#endif - -/* Codewarrior on NT has linking problems without this. */ -#if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__) -# define PNG_ALWAYS_EXTERN -#endif - -/* For some reason, Borland C++ defines memcmp, etc. in mem.h, not - * stdlib.h like it should (I think). Or perhaps this is a C++ - * "feature"? - */ -#ifdef __TURBOC__ -# include -# include "alloc.h" -#endif - -#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \ - defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__)) -# include -#endif - -/* This controls how fine the dithering gets. As this allocates - * a largish chunk of memory (32K), those who are not as concerned - * with dithering quality can decrease some or all of these. - */ -#ifndef PNG_DITHER_RED_BITS -# define PNG_DITHER_RED_BITS 5 -#endif -#ifndef PNG_DITHER_GREEN_BITS -# define PNG_DITHER_GREEN_BITS 5 -#endif -#ifndef PNG_DITHER_BLUE_BITS -# define PNG_DITHER_BLUE_BITS 5 -#endif - -/* This controls how fine the gamma correction becomes when you - * are only interested in 8 bits anyway. Increasing this value - * results in more memory being used, and more pow() functions - * being called to fill in the gamma tables. Don't set this value - * less then 8, and even that may not work (I haven't tested it). - */ - -#ifndef PNG_MAX_GAMMA_8 -# define PNG_MAX_GAMMA_8 11 -#endif - -/* This controls how much a difference in gamma we can tolerate before - * we actually start doing gamma conversion. - */ -#ifndef PNG_GAMMA_THRESHOLD -# define PNG_GAMMA_THRESHOLD 0.05 -#endif - -#endif /* PNG_INTERNAL */ - -/* The following uses const char * instead of char * for error - * and warning message functions, so some compilers won't complain. - * If you do not want to use const, define PNG_NO_CONST here. - */ - -#ifndef PNG_NO_CONST -# define PNG_CONST const -#else -# define PNG_CONST -#endif - -/* The following defines give you the ability to remove code from the - * library that you will not be using. I wish I could figure out how to - * automate this, but I can't do that without making it seriously hard - * on the users. So if you are not using an ability, change the #define - * to and #undef, and that part of the library will not be compiled. If - * your linker can't find a function, you may want to make sure the - * ability is defined here. Some of these depend upon some others being - * defined. I haven't figured out all the interactions here, so you may - * have to experiment awhile to get everything to compile. If you are - * creating or using a shared library, you probably shouldn't touch this, - * as it will affect the size of the structures, and this will cause bad - * things to happen if the library and/or application ever change. - */ - -/* Any features you will not be using can be undef'ed here */ - -/* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user - * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS - * on the compile line, then pick and choose which ones to define without - * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED - * if you only want to have a png-compliant reader/writer but don't need - * any of the extra transformations. This saves about 80 kbytes in a - * typical installation of the library. (PNG_NO_* form added in version - * 1.0.1c, for consistency) - */ - -/* The size of the png_text structure changed in libpng-1.0.6 when - * iTXt is supported. It is turned off by default, to support old apps - * that malloc the png_text structure instead of calling png_set_text() - * and letting libpng malloc it. It will be turned on by default in - * libpng-1.3.0. - */ - -#ifndef PNG_iTXt_SUPPORTED -# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt) -# define PNG_NO_READ_iTXt -# endif -# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt) -# define PNG_NO_WRITE_iTXt -# endif -#endif - -/* The following support, added after version 1.0.0, can be turned off here en - * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility - * with old applications that require the length of png_struct and png_info - * to remain unchanged. - */ - -#ifdef PNG_LEGACY_SUPPORTED -# define PNG_NO_FREE_ME -# define PNG_NO_READ_UNKNOWN_CHUNKS -# define PNG_NO_WRITE_UNKNOWN_CHUNKS -# define PNG_NO_READ_USER_CHUNKS -# define PNG_NO_READ_iCCP -# define PNG_NO_WRITE_iCCP -# define PNG_NO_READ_iTXt -# define PNG_NO_WRITE_iTXt -# define PNG_NO_READ_sCAL -# define PNG_NO_WRITE_sCAL -# define PNG_NO_READ_sPLT -# define PNG_NO_WRITE_sPLT -# define PNG_NO_INFO_IMAGE -# define PNG_NO_READ_RGB_TO_GRAY -# define PNG_NO_READ_USER_TRANSFORM -# define PNG_NO_WRITE_USER_TRANSFORM -# define PNG_NO_USER_MEM -# define PNG_NO_READ_EMPTY_PLTE -# define PNG_NO_MNG_FEATURES -# define PNG_NO_FIXED_POINT_SUPPORTED -#endif - -/* Ignore attempt to turn off both floating and fixed point support */ -#if !defined(PNG_FLOATING_POINT_SUPPORTED) || \ - !defined(PNG_NO_FIXED_POINT_SUPPORTED) -# define PNG_FIXED_POINT_SUPPORTED -#endif - -#ifndef PNG_NO_FREE_ME -# define PNG_FREE_ME_SUPPORTED -#endif - -#if defined(PNG_READ_SUPPORTED) - -#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ - !defined(PNG_NO_READ_TRANSFORMS) -# define PNG_READ_TRANSFORMS_SUPPORTED -#endif - -#ifdef PNG_READ_TRANSFORMS_SUPPORTED -# ifndef PNG_NO_READ_EXPAND -# define PNG_READ_EXPAND_SUPPORTED -# endif -# ifndef PNG_NO_READ_SHIFT -# define PNG_READ_SHIFT_SUPPORTED -# endif -# ifndef PNG_NO_READ_PACK -# define PNG_READ_PACK_SUPPORTED -# endif -# ifndef PNG_NO_READ_BGR -# define PNG_READ_BGR_SUPPORTED -# endif -# ifndef PNG_NO_READ_SWAP -# define PNG_READ_SWAP_SUPPORTED -# endif -# ifndef PNG_NO_READ_PACKSWAP -# define PNG_READ_PACKSWAP_SUPPORTED -# endif -# ifndef PNG_NO_READ_INVERT -# define PNG_READ_INVERT_SUPPORTED -# endif -# ifndef PNG_NO_READ_DITHER -# define PNG_READ_DITHER_SUPPORTED -# endif -# ifndef PNG_NO_READ_BACKGROUND -# define PNG_READ_BACKGROUND_SUPPORTED -# endif -# ifndef PNG_NO_READ_16_TO_8 -# define PNG_READ_16_TO_8_SUPPORTED -# endif -# ifndef PNG_NO_READ_FILLER -# define PNG_READ_FILLER_SUPPORTED -# endif -# ifndef PNG_NO_READ_GAMMA -# define PNG_READ_GAMMA_SUPPORTED -# endif -# ifndef PNG_NO_READ_GRAY_TO_RGB -# define PNG_READ_GRAY_TO_RGB_SUPPORTED -# endif -# ifndef PNG_NO_READ_SWAP_ALPHA -# define PNG_READ_SWAP_ALPHA_SUPPORTED -# endif -# ifndef PNG_NO_READ_INVERT_ALPHA -# define PNG_READ_INVERT_ALPHA_SUPPORTED -# endif -# ifndef PNG_NO_READ_STRIP_ALPHA -# define PNG_READ_STRIP_ALPHA_SUPPORTED -# endif -# ifndef PNG_NO_READ_USER_TRANSFORM -# define PNG_READ_USER_TRANSFORM_SUPPORTED -# endif -# ifndef PNG_NO_READ_RGB_TO_GRAY -# define PNG_READ_RGB_TO_GRAY_SUPPORTED -# endif -#endif /* PNG_READ_TRANSFORMS_SUPPORTED */ - -#if !defined(PNG_NO_PROGRESSIVE_READ) && \ - !defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED) /* if you don't do progressive */ -# define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */ -#endif /* about interlacing capability! You'll */ - /* still have interlacing unless you change the following line: */ - -#define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */ - -#ifndef PNG_NO_READ_COMPOSITE_NODIV -# ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */ -# define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */ -# endif -#endif - -/* Deprecated, will be removed from version 2.0.0. - Use PNG_MNG_FEATURES_SUPPORTED instead. */ -#ifndef PNG_NO_READ_EMPTY_PLTE -# define PNG_READ_EMPTY_PLTE_SUPPORTED -#endif - -#endif /* PNG_READ_SUPPORTED */ - -#if defined(PNG_WRITE_SUPPORTED) - -# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ - !defined(PNG_NO_WRITE_TRANSFORMS) -# define PNG_WRITE_TRANSFORMS_SUPPORTED -#endif - -#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED -# ifndef PNG_NO_WRITE_SHIFT -# define PNG_WRITE_SHIFT_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_PACK -# define PNG_WRITE_PACK_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_BGR -# define PNG_WRITE_BGR_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_SWAP -# define PNG_WRITE_SWAP_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_PACKSWAP -# define PNG_WRITE_PACKSWAP_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_INVERT -# define PNG_WRITE_INVERT_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_FILLER -# define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */ -# endif -# ifndef PNG_NO_WRITE_SWAP_ALPHA -# define PNG_WRITE_SWAP_ALPHA_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_INVERT_ALPHA -# define PNG_WRITE_INVERT_ALPHA_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_USER_TRANSFORM -# define PNG_WRITE_USER_TRANSFORM_SUPPORTED -# endif -#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */ - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) -# ifndef PNG_NO_USER_TRANSFORM_PTR -# define PNG_USER_TRANSFORM_PTR_SUPPORTED -# endif -#endif - -#define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant - encoders, but can cause trouble - if left undefined */ - -#if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \ - defined(PNG_FLOATING_POINT_SUPPORTED) -# define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED -#endif - -#ifndef PNG_1_0_X -#ifndef PNG_NO_ERROR_NUMBERS -#define PNG_ERROR_NUMBERS_SUPPORTED -#endif -#endif /* PNG_1_0_X */ - -#ifndef PNG_NO_WRITE_FLUSH -# define PNG_WRITE_FLUSH_SUPPORTED -#endif - -/* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */ -#ifndef PNG_NO_WRITE_EMPTY_PLTE -# define PNG_WRITE_EMPTY_PLTE_SUPPORTED -#endif - -#endif /* PNG_WRITE_SUPPORTED */ - -#ifndef PNG_NO_STDIO -# define PNG_TIME_RFC1123_SUPPORTED -#endif - -/* This adds extra functions in pngget.c for accessing data from the - * info pointer (added in version 0.99) - * png_get_image_width() - * png_get_image_height() - * png_get_bit_depth() - * png_get_color_type() - * png_get_compression_type() - * png_get_filter_type() - * png_get_interlace_type() - * png_get_pixel_aspect_ratio() - * png_get_pixels_per_meter() - * png_get_x_offset_pixels() - * png_get_y_offset_pixels() - * png_get_x_offset_microns() - * png_get_y_offset_microns() - */ -#if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED) -# define PNG_EASY_ACCESS_SUPPORTED -#endif - -/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 - even when PNG_USE_PNGVCRD or PNG_USE_PNGGCCRD is not defined */ -#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE) -# ifndef PNG_ASSEMBLER_CODE_SUPPORTED -# define PNG_ASSEMBLER_CODE_SUPPORTED -# endif -# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) -# define PNG_MMX_CODE_SUPPORTED -# endif -#endif - -/* If you are sure that you don't need thread safety and you are compiling - with PNG_USE_PNGCCRD for an MMX application, you can define this for - faster execution. See pnggccrd.c. -#define PNG_THREAD_UNSAFE_OK -*/ - -#if !defined(PNG_1_0_X) -#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED) -# define PNG_USER_MEM_SUPPORTED -#endif -#endif /* PNG_1_0_X */ - -/* These are currently experimental features, define them if you want */ - -/* very little testing */ -/* -#ifdef PNG_READ_SUPPORTED -# ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED -# define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED -# endif -#endif -*/ - -/* This is only for PowerPC big-endian and 680x0 systems */ -/* some testing */ -/* -#ifdef PNG_READ_SUPPORTED -# ifndef PNG_PNG_READ_BIG_ENDIAN_SUPPORTED -# define PNG_READ_BIG_ENDIAN_SUPPORTED -# endif -#endif -*/ - -/* Buggy compilers (e.g., gcc 2.7.2.2) need this */ -/* -#define PNG_NO_POINTER_INDEXING -*/ - -/* These functions are turned off by default, as they will be phased out. */ -/* -#define PNG_USELESS_TESTS_SUPPORTED -#define PNG_CORRECT_PALETTE_SUPPORTED -*/ - -/* Any chunks you are not interested in, you can undef here. The - * ones that allocate memory may be expecially important (hIST, - * tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info - * a bit smaller. - */ - -#if defined(PNG_READ_SUPPORTED) && \ - !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ - !defined(PNG_NO_READ_ANCILLARY_CHUNKS) -# define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED -#endif - -#if defined(PNG_WRITE_SUPPORTED) && \ - !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ - !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS) -# define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED -#endif - -#ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED - -#ifdef PNG_NO_READ_TEXT -# define PNG_NO_READ_iTXt -# define PNG_NO_READ_tEXt -# define PNG_NO_READ_zTXt -#endif -#ifndef PNG_NO_READ_bKGD -# define PNG_READ_bKGD_SUPPORTED -# define PNG_bKGD_SUPPORTED -#endif -#ifndef PNG_NO_READ_cHRM -# define PNG_READ_cHRM_SUPPORTED -# define PNG_cHRM_SUPPORTED -#endif -#ifndef PNG_NO_READ_gAMA -# define PNG_READ_gAMA_SUPPORTED -# define PNG_gAMA_SUPPORTED -#endif -#ifndef PNG_NO_READ_hIST -# define PNG_READ_hIST_SUPPORTED -# define PNG_hIST_SUPPORTED -#endif -#ifndef PNG_NO_READ_iCCP -# define PNG_READ_iCCP_SUPPORTED -# define PNG_iCCP_SUPPORTED -#endif -#ifndef PNG_NO_READ_iTXt -# ifndef PNG_READ_iTXt_SUPPORTED -# define PNG_READ_iTXt_SUPPORTED -# endif -# ifndef PNG_iTXt_SUPPORTED -# define PNG_iTXt_SUPPORTED -# endif -#endif -#ifndef PNG_NO_READ_oFFs -# define PNG_READ_oFFs_SUPPORTED -# define PNG_oFFs_SUPPORTED -#endif -#ifndef PNG_NO_READ_pCAL -# define PNG_READ_pCAL_SUPPORTED -# define PNG_pCAL_SUPPORTED -#endif -#ifndef PNG_NO_READ_sCAL -# define PNG_READ_sCAL_SUPPORTED -# define PNG_sCAL_SUPPORTED -#endif -#ifndef PNG_NO_READ_pHYs -# define PNG_READ_pHYs_SUPPORTED -# define PNG_pHYs_SUPPORTED -#endif -#ifndef PNG_NO_READ_sBIT -# define PNG_READ_sBIT_SUPPORTED -# define PNG_sBIT_SUPPORTED -#endif -#ifndef PNG_NO_READ_sPLT -# define PNG_READ_sPLT_SUPPORTED -# define PNG_sPLT_SUPPORTED -#endif -#ifndef PNG_NO_READ_sRGB -# define PNG_READ_sRGB_SUPPORTED -# define PNG_sRGB_SUPPORTED -#endif -#ifndef PNG_NO_READ_tEXt -# define PNG_READ_tEXt_SUPPORTED -# define PNG_tEXt_SUPPORTED -#endif -#ifndef PNG_NO_READ_tIME -# define PNG_READ_tIME_SUPPORTED -# define PNG_tIME_SUPPORTED -#endif -#ifndef PNG_NO_READ_tRNS -# define PNG_READ_tRNS_SUPPORTED -# define PNG_tRNS_SUPPORTED -#endif -#ifndef PNG_NO_READ_zTXt -# define PNG_READ_zTXt_SUPPORTED -# define PNG_zTXt_SUPPORTED -#endif -#ifndef PNG_NO_READ_UNKNOWN_CHUNKS -# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED -# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED -# define PNG_UNKNOWN_CHUNKS_SUPPORTED -# endif -# ifndef PNG_NO_HANDLE_AS_UNKNOWN -# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# endif -#endif -#if !defined(PNG_NO_READ_USER_CHUNKS) && \ - defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) -# define PNG_READ_USER_CHUNKS_SUPPORTED -# define PNG_USER_CHUNKS_SUPPORTED -# ifdef PNG_NO_READ_UNKNOWN_CHUNKS -# undef PNG_NO_READ_UNKNOWN_CHUNKS -# endif -# ifdef PNG_NO_HANDLE_AS_UNKNOWN -# undef PNG_NO_HANDLE_AS_UNKNOWN -# endif -#endif -#ifndef PNG_NO_READ_OPT_PLTE -# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ -#endif /* optional PLTE chunk in RGB and RGBA images */ -#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ - defined(PNG_READ_zTXt_SUPPORTED) -# define PNG_READ_TEXT_SUPPORTED -# define PNG_TEXT_SUPPORTED -#endif - -#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ - -#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED - -#ifdef PNG_NO_WRITE_TEXT -# define PNG_NO_WRITE_iTXt -# define PNG_NO_WRITE_tEXt -# define PNG_NO_WRITE_zTXt -#endif -#ifndef PNG_NO_WRITE_bKGD -# define PNG_WRITE_bKGD_SUPPORTED -# ifndef PNG_bKGD_SUPPORTED -# define PNG_bKGD_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_cHRM -# define PNG_WRITE_cHRM_SUPPORTED -# ifndef PNG_cHRM_SUPPORTED -# define PNG_cHRM_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_gAMA -# define PNG_WRITE_gAMA_SUPPORTED -# ifndef PNG_gAMA_SUPPORTED -# define PNG_gAMA_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_hIST -# define PNG_WRITE_hIST_SUPPORTED -# ifndef PNG_hIST_SUPPORTED -# define PNG_hIST_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_iCCP -# define PNG_WRITE_iCCP_SUPPORTED -# ifndef PNG_iCCP_SUPPORTED -# define PNG_iCCP_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_iTXt -# ifndef PNG_WRITE_iTXt_SUPPORTED -# define PNG_WRITE_iTXt_SUPPORTED -# endif -# ifndef PNG_iTXt_SUPPORTED -# define PNG_iTXt_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_oFFs -# define PNG_WRITE_oFFs_SUPPORTED -# ifndef PNG_oFFs_SUPPORTED -# define PNG_oFFs_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_pCAL -# define PNG_WRITE_pCAL_SUPPORTED -# ifndef PNG_pCAL_SUPPORTED -# define PNG_pCAL_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_sCAL -# define PNG_WRITE_sCAL_SUPPORTED -# ifndef PNG_sCAL_SUPPORTED -# define PNG_sCAL_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_pHYs -# define PNG_WRITE_pHYs_SUPPORTED -# ifndef PNG_pHYs_SUPPORTED -# define PNG_pHYs_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_sBIT -# define PNG_WRITE_sBIT_SUPPORTED -# ifndef PNG_sBIT_SUPPORTED -# define PNG_sBIT_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_sPLT -# define PNG_WRITE_sPLT_SUPPORTED -# ifndef PNG_sPLT_SUPPORTED -# define PNG_sPLT_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_sRGB -# define PNG_WRITE_sRGB_SUPPORTED -# ifndef PNG_sRGB_SUPPORTED -# define PNG_sRGB_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_tEXt -# define PNG_WRITE_tEXt_SUPPORTED -# ifndef PNG_tEXt_SUPPORTED -# define PNG_tEXt_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_tIME -# define PNG_WRITE_tIME_SUPPORTED -# ifndef PNG_tIME_SUPPORTED -# define PNG_tIME_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_tRNS -# define PNG_WRITE_tRNS_SUPPORTED -# ifndef PNG_tRNS_SUPPORTED -# define PNG_tRNS_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_zTXt -# define PNG_WRITE_zTXt_SUPPORTED -# ifndef PNG_zTXt_SUPPORTED -# define PNG_zTXt_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS -# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED -# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED -# define PNG_UNKNOWN_CHUNKS_SUPPORTED -# endif -# ifndef PNG_NO_HANDLE_AS_UNKNOWN -# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# endif -# endif -#endif -#if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ - defined(PNG_WRITE_zTXt_SUPPORTED) -# define PNG_WRITE_TEXT_SUPPORTED -# ifndef PNG_TEXT_SUPPORTED -# define PNG_TEXT_SUPPORTED -# endif -#endif - -#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ - -/* Turn this off to disable png_read_png() and - * png_write_png() and leave the row_pointers member - * out of the info structure. - */ -#ifndef PNG_NO_INFO_IMAGE -# define PNG_INFO_IMAGE_SUPPORTED -#endif - -/* need the time information for reading tIME chunks */ -#if defined(PNG_tIME_SUPPORTED) -# if !defined(_WIN32_WCE) - /* "time.h" functions are not supported on WindowsCE */ -# include -# endif -#endif - -/* Some typedefs to get us started. These should be safe on most of the - * common platforms. The typedefs should be at least as large as the - * numbers suggest (a png_uint_32 must be at least 32 bits long), but they - * don't have to be exactly that size. Some compilers dislike passing - * unsigned shorts as function parameters, so you may be better off using - * unsigned int for png_uint_16. Likewise, for 64-bit systems, you may - * want to have unsigned int for png_uint_32 instead of unsigned long. - */ - -typedef unsigned long png_uint_32; -typedef long png_int_32; -typedef unsigned short png_uint_16; -typedef short png_int_16; -typedef unsigned char png_byte; - -/* This is usually size_t. It is typedef'ed just in case you need it to - change (I'm not sure if you will or not, so I thought I'd be safe) */ -typedef size_t png_size_t; - -/* The following is needed for medium model support. It cannot be in the - * PNG_INTERNAL section. Needs modification for other compilers besides - * MSC. Model independent support declares all arrays and pointers to be - * large using the far keyword. The zlib version used must also support - * model independent data. As of version zlib 1.0.4, the necessary changes - * have been made in zlib. The USE_FAR_KEYWORD define triggers other - * changes that are needed. (Tim Wegner) - */ - -/* Separate compiler dependencies (problem here is that zlib.h always - defines FAR. (SJT) */ -#ifdef __BORLANDC__ -# if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__) -# define LDATA 1 -# else -# define LDATA 0 -# endif - /* GRR: why is Cygwin in here? Cygwin is not Borland C... */ -# if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__) -# define PNG_MAX_MALLOC_64K -# if (LDATA != 1) -# ifndef FAR -# define FAR __far -# endif -# define USE_FAR_KEYWORD -# endif /* LDATA != 1 */ - /* Possibly useful for moving data out of default segment. - * Uncomment it if you want. Could also define FARDATA as - * const if your compiler supports it. (SJT) -# define FARDATA FAR - */ -# endif /* __WIN32__, __FLAT__, __CYGWIN__ */ -#endif /* __BORLANDC__ */ - - -/* Suggest testing for specific compiler first before testing for - * FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM, - * making reliance oncertain keywords suspect. (SJT) - */ - -/* MSC Medium model */ -#if defined(FAR) -# if defined(M_I86MM) -# define USE_FAR_KEYWORD -# define FARDATA FAR -# include -# endif -#endif - -/* SJT: default case */ -#ifndef FAR -# define FAR -#endif - -/* At this point FAR is always defined */ -#ifndef FARDATA -# define FARDATA -#endif - -/* Typedef for floating-point numbers that are converted - to fixed-point with a multiple of 100,000, e.g., int_gamma */ -typedef png_int_32 png_fixed_point; - -/* Add typedefs for pointers */ -typedef void FAR * png_voidp; -typedef png_byte FAR * png_bytep; -typedef png_uint_32 FAR * png_uint_32p; -typedef png_int_32 FAR * png_int_32p; -typedef png_uint_16 FAR * png_uint_16p; -typedef png_int_16 FAR * png_int_16p; -typedef PNG_CONST char FAR * png_const_charp; -typedef char FAR * png_charp; -typedef png_fixed_point FAR * png_fixed_point_p; - -#ifndef PNG_NO_STDIO -#if defined(_WIN32_WCE) -typedef HANDLE png_FILE_p; -#else -typedef FILE * png_FILE_p; -#endif -#endif - -#ifdef PNG_FLOATING_POINT_SUPPORTED -typedef double FAR * png_doublep; -#endif - -/* Pointers to pointers; i.e. arrays */ -typedef png_byte FAR * FAR * png_bytepp; -typedef png_uint_32 FAR * FAR * png_uint_32pp; -typedef png_int_32 FAR * FAR * png_int_32pp; -typedef png_uint_16 FAR * FAR * png_uint_16pp; -typedef png_int_16 FAR * FAR * png_int_16pp; -typedef PNG_CONST char FAR * FAR * png_const_charpp; -typedef char FAR * FAR * png_charpp; -typedef png_fixed_point FAR * FAR * png_fixed_point_pp; -#ifdef PNG_FLOATING_POINT_SUPPORTED -typedef double FAR * FAR * png_doublepp; -#endif - -/* Pointers to pointers to pointers; i.e., pointer to array */ -typedef char FAR * FAR * FAR * png_charppp; - -/* libpng typedefs for types in zlib. If zlib changes - * or another compression library is used, then change these. - * Eliminates need to change all the source files. - */ -typedef charf * png_zcharp; -typedef charf * FAR * png_zcharpp; -typedef z_stream FAR * png_zstreamp; - -/* - * Define PNG_BUILD_DLL if the module being built is a Windows - * LIBPNG DLL. - * - * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL. - * It is equivalent to Microsoft predefined macro _DLL that is - * automatically defined when you compile using the share - * version of the CRT (C Run-Time library) - * - * The cygwin mods make this behavior a little different: - * Define PNG_BUILD_DLL if you are building a dll for use with cygwin - * Define PNG_STATIC if you are building a static library for use with cygwin, - * -or- if you are building an application that you want to link to the - * static library. - * PNG_USE_DLL is defined by default (no user action needed) unless one of - * the other flags is defined. - */ - -#if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL)) -# define PNG_DLL -#endif -/* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib. - * When building a static lib, default to no GLOBAL ARRAYS, but allow - * command-line override - */ -#if defined(__CYGWIN__) -# if !defined(PNG_STATIC) -# if defined(PNG_USE_GLOBAL_ARRAYS) -# undef PNG_USE_GLOBAL_ARRAYS -# endif -# if !defined(PNG_USE_LOCAL_ARRAYS) -# define PNG_USE_LOCAL_ARRAYS -# endif -# else -# if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS) -# if defined(PNG_USE_GLOBAL_ARRAYS) -# undef PNG_USE_GLOBAL_ARRAYS -# endif -# endif -# endif -# if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) -# define PNG_USE_LOCAL_ARRAYS -# endif -#endif - -/* Do not use global arrays (helps with building DLL's) - * They are no longer used in libpng itself, since version 1.0.5c, - * but might be required for some pre-1.0.5c applications. - */ -#if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) -# if defined(PNG_NO_GLOBAL_ARRAYS) || (defined(__GNUC__) && defined(PNG_DLL)) -# define PNG_USE_LOCAL_ARRAYS -# else -# define PNG_USE_GLOBAL_ARRAYS -# endif -#endif - -#if defined(__CYGWIN__) -# undef PNGAPI -# define PNGAPI __cdecl -# undef PNG_IMPEXP -# define PNG_IMPEXP -#endif - -/* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall", - * you may get warnings regarding the linkage of png_zalloc and png_zfree. - * Don't ignore those warnings; you must also reset the default calling - * convention in your compiler to match your PNGAPI, and you must build - * zlib and your applications the same way you build libpng. - */ - -#ifndef PNGAPI - -#if defined(__MINGW32__) && !defined(PNG_MODULEDEF) -# ifndef PNG_NO_MODULEDEF -# define PNG_NO_MODULEDEF -# endif -#endif - -#if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF) -# define PNG_IMPEXP -#endif - -#if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \ - (( defined(_Windows) || defined(_WINDOWS) || \ - defined(WIN32) || defined(_WIN32) || defined(__WIN32__) )) - -# if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800)) -# define PNGAPI __cdecl -# else -# define PNGAPI _cdecl -# endif - -# if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \ - 0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */) -# define PNG_IMPEXP -# endif - -# if !defined(PNG_IMPEXP) - -# define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol -# define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol - - /* Borland/Microsoft */ -# if defined(_MSC_VER) || defined(__BORLANDC__) -# if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500) -# define PNG_EXPORT PNG_EXPORT_TYPE1 -# else -# define PNG_EXPORT PNG_EXPORT_TYPE2 -# if defined(PNG_BUILD_DLL) -# define PNG_IMPEXP __export -# else -# define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in - VC++ */ -# endif /* Exists in Borland C++ for - C++ classes (== huge) */ -# endif -# endif - -# if !defined(PNG_IMPEXP) -# if defined(PNG_BUILD_DLL) -# define PNG_IMPEXP __declspec(dllexport) -# else -# define PNG_IMPEXP __declspec(dllimport) -# endif -# endif -# endif /* PNG_IMPEXP */ -#else /* !(DLL || non-cygwin WINDOWS) */ -# if (defined(__IBMC__) || defined(IBMCPP__)) && defined(__OS2__) -# define PNGAPI _System -# define PNG_IMPEXP -# else -# if 0 /* ... other platforms, with other meanings */ -# else -# define PNGAPI -# define PNG_IMPEXP -# endif -# endif -#endif -#endif - -#ifndef PNGAPI -# define PNGAPI -#endif -#ifndef PNG_IMPEXP -# define PNG_IMPEXP -#endif - -#ifndef PNG_EXPORT -# define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol -#endif - -#ifdef PNG_USE_GLOBAL_ARRAYS -# ifndef PNG_EXPORT_VAR -# define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type -# endif -#endif - -/* User may want to use these so they are not in PNG_INTERNAL. Any library - * functions that are passed far data must be model independent. - */ - -#ifndef PNG_ABORT -# define PNG_ABORT() abort() -#endif - -#ifdef PNG_SETJMP_SUPPORTED -# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf) -#else -# define png_jmpbuf(png_ptr) \ - (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED) -#endif - -#if defined(USE_FAR_KEYWORD) /* memory model independent fns */ -/* use this to make far-to-near assignments */ -# define CHECK 1 -# define NOCHECK 0 -# define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK)) -# define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK)) -# define png_strcpy _fstrcpy -# define png_strlen _fstrlen -# define png_memcmp _fmemcmp /* SJT: added */ -# define png_memcpy _fmemcpy -# define png_memset _fmemset -#else /* use the usual functions */ -# define CVT_PTR(ptr) (ptr) -# define CVT_PTR_NOCHECK(ptr) (ptr) -# define png_strcpy strcpy -# define png_strlen strlen -# define png_memcmp memcmp /* SJT: added */ -# define png_memcpy memcpy -# define png_memset memset -#endif -/* End of memory model independent support */ - -/* Just a little check that someone hasn't tried to define something - * contradictory. - */ -#if (PNG_ZBUF_SIZE > 65536) && defined(PNG_MAX_MALLOC_64K) -# undef PNG_ZBUF_SIZE -# define PNG_ZBUF_SIZE 65536 -#endif - -#ifdef PNG_READ_SUPPORTED -/* Prior to libpng-1.0.9, this block was in pngasmrd.h */ -#if defined(PNG_INTERNAL) - -/* These are the default thresholds before the MMX code kicks in; if either - * rowbytes or bitdepth is below the threshold, plain C code is used. These - * can be overridden at runtime via the png_set_mmx_thresholds() call in - * libpng 1.2.0 and later. The values below were chosen by Intel. - */ - -#ifndef PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT -# define PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT 128 /* >= */ -#endif -#ifndef PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT -# define PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT 9 /* >= */ -#endif - -/* Set this in the makefile for VC++ on Pentium, not here. */ -/* Platform must be Pentium. Makefile must assemble and load pngvcrd.c . - * MMX will be detected at run time and used if present. - */ -#ifdef PNG_USE_PNGVCRD -# define PNG_HAVE_ASSEMBLER_COMBINE_ROW -# define PNG_HAVE_ASSEMBLER_READ_INTERLACE -# define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW -#endif - -/* Set this in the makefile for gcc/as on Pentium, not here. */ -/* Platform must be Pentium. Makefile must assemble and load pnggccrd.c . - * MMX will be detected at run time and used if present. - */ -#ifdef PNG_USE_PNGGCCRD -# define PNG_HAVE_ASSEMBLER_COMBINE_ROW -# define PNG_HAVE_ASSEMBLER_READ_INTERLACE -# define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW -#endif -/* - see pnggccrd.c for info about what is currently enabled */ - -#endif /* PNG_INTERNAL */ -#endif /* PNG_READ_SUPPORTED */ - -#endif /* PNGCONF_H */ - diff --git a/collects/plot/src/all/pngerror.c b/collects/plot/src/all/pngerror.c deleted file mode 100644 index fc3c304779..0000000000 --- a/collects/plot/src/all/pngerror.c +++ /dev/null @@ -1,291 +0,0 @@ - -/* pngerror.c - stub functions for i/o and memory allocation - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file provides a location for all error handling. Users who - * need special error handling are expected to write replacement functions - * and use png_set_error_fn() to use those functions. See the instructions - * at each function. - */ - -#define PNG_INTERNAL -#include "png.h" - -static void /* PRIVATE */ -png_default_error PNGARG((png_structp png_ptr, - png_const_charp error_message)); -static void /* PRIVATE */ -png_default_warning PNGARG((png_structp png_ptr, - png_const_charp warning_message)); - -/* This function is called whenever there is a fatal error. This function - * should not be changed. If there is a need to handle errors differently, - * you should supply a replacement error function and use png_set_error_fn() - * to replace the error function at run-time. - */ -void PNGAPI -png_error(png_structp png_ptr, png_const_charp error_message) -{ -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - char msg[16]; - if (png_ptr->flags&(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) - { - int offset = 0; - if (*error_message == '#') - { - for (offset=1; offset<15; offset++) - if (*(error_message+offset) == ' ') - break; - if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT) - { - int i; - for (i=0; iflags&PNG_FLAG_STRIP_ERROR_TEXT) - { - msg[0]='0'; - msg[1]='\0'; - error_message=msg; - } - } - } -#endif - if (png_ptr->error_fn != NULL) - (*(png_ptr->error_fn))(png_ptr, error_message); - - /* if the following returns or doesn't exist, use the default function, - which will not return */ - png_default_error(png_ptr, error_message); -} - -/* This function is called whenever there is a non-fatal error. This function - * should not be changed. If there is a need to handle warnings differently, - * you should supply a replacement warning function and use - * png_set_error_fn() to replace the warning function at run-time. - */ -void PNGAPI -png_warning(png_structp png_ptr, png_const_charp warning_message) -{ - int offset = 0; -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - if (png_ptr->flags&(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) -#endif - { - if (*warning_message == '#') - { - for (offset=1; offset<15; offset++) - if (*(warning_message+offset) == ' ') - break; - } - } - if (png_ptr->warning_fn != NULL) - (*(png_ptr->warning_fn))(png_ptr, - (png_const_charp)(warning_message+offset)); - else - png_default_warning(png_ptr, (png_const_charp)(warning_message+offset)); -} - -/* These utilities are used internally to build an error message that relates - * to the current chunk. The chunk name comes from png_ptr->chunk_name, - * this is used to prefix the message. The message is limited in length - * to 63 bytes, the name characters are output as hex digits wrapped in [] - * if the character is invalid. - */ -#define isnonalpha(c) ((c) < 41 || (c) > 122 || ((c) > 90 && (c) < 97)) -static PNG_CONST char png_digit[16] = { - '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', - 'F' }; - -static void /* PRIVATE */ -png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp - error_message) -{ - int iout = 0, iin = 0; - - while (iin < 4) - { - int c = png_ptr->chunk_name[iin++]; - if (isnonalpha(c)) - { - buffer[iout++] = '['; - buffer[iout++] = png_digit[(c & 0xf0) >> 4]; - buffer[iout++] = png_digit[c & 0x0f]; - buffer[iout++] = ']'; - } - else - { - buffer[iout++] = (png_byte)c; - } - } - - if (error_message == NULL) - buffer[iout] = 0; - else - { - buffer[iout++] = ':'; - buffer[iout++] = ' '; - png_memcpy(buffer+iout, error_message, 64); - buffer[iout+63] = 0; - } -} - -void PNGAPI -png_chunk_error(png_structp png_ptr, png_const_charp error_message) -{ - char msg[18+64]; - png_format_buffer(png_ptr, msg, error_message); - png_error(png_ptr, msg); -} - -void PNGAPI -png_chunk_warning(png_structp png_ptr, png_const_charp warning_message) -{ - char msg[18+64]; - png_format_buffer(png_ptr, msg, warning_message); - png_warning(png_ptr, msg); -} - -/* This is the default error handling function. Note that replacements for - * this function MUST NOT RETURN, or the program will likely crash. This - * function is used by default, or if the program supplies NULL for the - * error function pointer in png_set_error_fn(). - */ -static void /* PRIVATE */ -png_default_error(png_structp png_ptr, png_const_charp error_message) -{ -#ifndef PNG_NO_CONSOLE_IO -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - if (*error_message == '#') - { - int offset; - char error_number[16]; - for (offset=0; offset<15; offset++) - { - error_number[offset] = *(error_message+offset+1); - if (*(error_message+offset) == ' ') - break; - } - if((offset > 1) && (offset < 15)) - { - error_number[offset-1]='\0'; - fprintf(stderr, "libpng error no. %s: %s\n", error_number, - error_message+offset); - } - else - fprintf(stderr, "libpng error: %s, offset=%d\n", error_message,offset); - } - else -#endif - fprintf(stderr, "libpng error: %s\n", error_message); -#else - if (error_message) - /* make compiler happy */ ; -#endif - -#ifdef PNG_SETJMP_SUPPORTED -# ifdef USE_FAR_KEYWORD - { - jmp_buf jmpbuf; - png_memcpy(jmpbuf,png_ptr->jmpbuf,sizeof(jmp_buf)); - longjmp(jmpbuf, 1); - } -# else - longjmp(png_ptr->jmpbuf, 1); -# endif -#else - if (png_ptr) - /* make compiler happy */ ; - PNG_ABORT(); -#endif -} - -/* This function is called when there is a warning, but the library thinks - * it can continue anyway. Replacement functions don't have to do anything - * here if you don't want them to. In the default configuration, png_ptr is - * not used, but it is passed in case it may be useful. - */ -static void /* PRIVATE */ -png_default_warning(png_structp png_ptr, png_const_charp warning_message) -{ -#ifndef PNG_NO_CONSOLE_IO -# ifdef PNG_ERROR_NUMBERS_SUPPORTED - if (*warning_message == '#') - { - int offset; - char warning_number[16]; - for (offset=0; offset<15; offset++) - { - warning_number[offset]=*(warning_message+offset+1); - if (*(warning_message+offset) == ' ') - break; - } - if((offset > 1) && (offset < 15)) - { - warning_number[offset-1]='\0'; - fprintf(stderr, "libpng warning no. %s: %s\n", warning_number, - warning_message+offset); - } - else - fprintf(stderr, "libpng warning: %s\n", warning_message); - } - else -# endif - fprintf(stderr, "libpng warning: %s\n", warning_message); -#else - if (warning_message) - /* appease compiler */ ; -#endif - if (png_ptr) - return; -} - -/* This function is called when the application wants to use another method - * of handling errors and warnings. Note that the error function MUST NOT - * return to the calling routine or serious problems will occur. The return - * method used in the default routine calls longjmp(png_ptr->jmpbuf, 1) - */ -void PNGAPI -png_set_error_fn(png_structp png_ptr, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warning_fn) -{ - png_ptr->error_ptr = error_ptr; - png_ptr->error_fn = error_fn; - png_ptr->warning_fn = warning_fn; -} - - -/* This function returns a pointer to the error_ptr associated with the user - * functions. The application should free any memory associated with this - * pointer before png_write_destroy and png_read_destroy are called. - */ -png_voidp PNGAPI -png_get_error_ptr(png_structp png_ptr) -{ - return ((png_voidp)png_ptr->error_ptr); -} - - -#ifdef PNG_ERROR_NUMBERS_SUPPORTED -void PNGAPI -png_set_strip_error_numbers(png_structp png_ptr, png_uint_32 strip_mode) -{ - if(png_ptr != NULL) - { - png_ptr->flags &= - ((~(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))&strip_mode); - } -} -#endif diff --git a/collects/plot/src/all/pnggccrd.c b/collects/plot/src/all/pnggccrd.c deleted file mode 100644 index 8d81c31471..0000000000 --- a/collects/plot/src/all/pnggccrd.c +++ /dev/null @@ -1,5397 +0,0 @@ -/* pnggccrd.c - mixed C/assembler version of utilities to read a PNG file - * - * For Intel x86 CPU (Pentium-MMX or later) and GNU C compiler. - * - * See http://www.intel.com/drg/pentiumII/appnotes/916/916.htm - * and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm - * for Intel's performance analysis of the MMX vs. non-MMX code. - * - * libpng version 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * Copyright (c) 1998, Intel Corporation - * - * Based on MSVC code contributed by Nirav Chhatrapati, Intel Corp., 1998. - * Interface to libpng contributed by Gilles Vollant, 1999. - * GNU C port by Greg Roelofs, 1999-2001. - * - * Lines 2350-4300 converted in place with intel2gas 1.3.1: - * - * intel2gas -mdI pnggccrd.c.partially-msvc -o pnggccrd.c - * - * and then cleaned up by hand. See http://hermes.terminal.at/intel2gas/ . - * - * NOTE: A sufficiently recent version of GNU as (or as.exe under DOS/Windows) - * is required to assemble the newer MMX instructions such as movq. - * For djgpp, see - * - * ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2gnu/bnu281b.zip - * - * (or a later version in the same directory). For Linux, check your - * distribution's web site(s) or try these links: - * - * http://rufus.w3.org/linux/RPM/binutils.html - * http://www.debian.org/Packages/stable/devel/binutils.html - * ftp://ftp.slackware.com/pub/linux/slackware/slackware/slakware/d1/ - * binutils.tgz - * - * For other platforms, see the main GNU site: - * - * ftp://ftp.gnu.org/pub/gnu/binutils/ - * - * Version 2.5.2l.15 is definitely too old... - */ - -/* - * TEMPORARY PORTING NOTES AND CHANGELOG (mostly by Greg Roelofs) - * ===================================== - * - * 19991006: - * - fixed sign error in post-MMX cleanup code (16- & 32-bit cases) - * - * 19991007: - * - additional optimizations (possible or definite): - * x [DONE] write MMX code for 64-bit case (pixel_bytes == 8) [not tested] - * - write MMX code for 48-bit case (pixel_bytes == 6) - * - figure out what's up with 24-bit case (pixel_bytes == 3): - * why subtract 8 from width_mmx in the pass 4/5 case? - * (only width_mmx case) (near line 1606) - * x [DONE] replace pixel_bytes within each block with the true - * constant value (or are compilers smart enough to do that?) - * - rewrite all MMX interlacing code so it's aligned with - * the *beginning* of the row buffer, not the end. This - * would not only allow one to eliminate half of the memory - * writes for odd passes (that is, pass == odd), it may also - * eliminate some unaligned-data-access exceptions (assuming - * there's a penalty for not aligning 64-bit accesses on - * 64-bit boundaries). The only catch is that the "leftover" - * pixel(s) at the end of the row would have to be saved, - * but there are enough unused MMX registers in every case, - * so this is not a problem. A further benefit is that the - * post-MMX cleanup code (C code) in at least some of the - * cases could be done within the assembler block. - * x [DONE] the "v3 v2 v1 v0 v7 v6 v5 v4" comments are confusing, - * inconsistent, and don't match the MMX Programmer's Reference - * Manual conventions anyway. They should be changed to - * "b7 b6 b5 b4 b3 b2 b1 b0," where b0 indicates the byte that - * was lowest in memory (e.g., corresponding to a left pixel) - * and b7 is the byte that was highest (e.g., a right pixel). - * - * 19991016: - * - Brennan's Guide notwithstanding, gcc under Linux does *not* - * want globals prefixed by underscores when referencing them-- - * i.e., if the variable is const4, then refer to it as const4, - * not _const4. This seems to be a djgpp-specific requirement. - * Also, such variables apparently *must* be declared outside - * of functions; neither static nor automatic variables work if - * defined within the scope of a single function, but both - * static and truly global (multi-module) variables work fine. - * - * 19991023: - * - fixed png_combine_row() non-MMX replication bug (odd passes only?) - * - switched from string-concatenation-with-macros to cleaner method of - * renaming global variables for djgpp--i.e., always use prefixes in - * inlined assembler code (== strings) and conditionally rename the - * variables, not the other way around. Hence _const4, _mask8_0, etc. - * - * 19991024: - * - fixed mmxsupport()/png_do_read_interlace() first-row bug - * This one was severely weird: even though mmxsupport() doesn't touch - * ebx (where "row" pointer was stored), it nevertheless managed to zero - * the register (even in static/non-fPIC code--see below), which in turn - * caused png_do_read_interlace() to return prematurely on the first row of - * interlaced images (i.e., without expanding the interlaced pixels). - * Inspection of the generated assembly code didn't turn up any clues, - * although it did point at a minor optimization (i.e., get rid of - * mmx_supported_local variable and just use eax). Possibly the CPUID - * instruction is more destructive than it looks? (Not yet checked.) - * - "info gcc" was next to useless, so compared fPIC and non-fPIC assembly - * listings... Apparently register spillage has to do with ebx, since - * it's used to index the global offset table. Commenting it out of the - * input-reg lists in png_combine_row() eliminated compiler barfage, so - * ifdef'd with __PIC__ macro: if defined, use a global for unmask - * - * 19991107: - * - verified CPUID clobberage: 12-char string constant ("GenuineIntel", - * "AuthenticAMD", etc.) placed in ebx:ecx:edx. Still need to polish. - * - * 19991120: - * - made "diff" variable (now "_dif") global to simplify conversion of - * filtering routines (running out of regs, sigh). "diff" is still used - * in interlacing routines, however. - * - fixed up both versions of mmxsupport() (ORIG_THAT_USED_TO_CLOBBER_EBX - * macro determines which is used); original not yet tested. - * - * 20000213: - * - when compiling with gcc, be sure to use -fomit-frame-pointer - * - * 20000319: - * - fixed a register-name typo in png_do_read_interlace(), default (MMX) case, - * pass == 4 or 5, that caused visible corruption of interlaced images - * - * 20000623: - * - Various problems were reported with gcc 2.95.2 in the Cygwin environment, - * many of the form "forbidden register 0 (ax) was spilled for class AREG." - * This is explained at http://gcc.gnu.org/fom_serv/cache/23.html, and - * Chuck Wilson supplied a patch involving dummy output registers. See - * http://sourceforge.net/bugs/?func=detailbug&bug_id=108741&group_id=5624 - * for the original (anonymous) SourceForge bug report. - * - * 20000706: - * - Chuck Wilson passed along these remaining gcc 2.95.2 errors: - * pnggccrd.c: In function `png_combine_row': - * pnggccrd.c:525: more than 10 operands in `asm' - * pnggccrd.c:669: more than 10 operands in `asm' - * pnggccrd.c:828: more than 10 operands in `asm' - * pnggccrd.c:994: more than 10 operands in `asm' - * pnggccrd.c:1177: more than 10 operands in `asm' - * They are all the same problem and can be worked around by using the - * global _unmask variable unconditionally, not just in the -fPIC case. - * Reportedly earlier versions of gcc also have the problem with more than - * 10 operands; they just don't report it. Much strangeness ensues, etc. - * - * 20000729: - * - enabled png_read_filter_row_mmx_up() (shortest remaining unconverted - * MMX routine); began converting png_read_filter_row_mmx_sub() - * - to finish remaining sections: - * - clean up indentation and comments - * - preload local variables - * - add output and input regs (order of former determines numerical - * mapping of latter) - * - avoid all usage of ebx (including bx, bh, bl) register [20000823] - * - remove "$" from addressing of Shift and Mask variables [20000823] - * - * 20000731: - * - global union vars causing segfaults in png_read_filter_row_mmx_sub()? - * - * 20000822: - * - ARGH, stupid png_read_filter_row_mmx_sub() segfault only happens with - * shared-library (-fPIC) version! Code works just fine as part of static - * library. Damn damn damn damn damn, should have tested that sooner. - * ebx is getting clobbered again (explicitly this time); need to save it - * on stack or rewrite asm code to avoid using it altogether. Blargh! - * - * 20000823: - * - first section was trickiest; all remaining sections have ebx -> edx now. - * (-fPIC works again.) Also added missing underscores to various Shift* - * and *Mask* globals and got rid of leading "$" signs. - * - * 20000826: - * - added visual separators to help navigate microscopic printed copies - * (http://pobox.com/~newt/code/gpr-latest.zip, mode 10); started working - * on png_read_filter_row_mmx_avg() - * - * 20000828: - * - finished png_read_filter_row_mmx_avg(): only Paeth left! (930 lines...) - * What the hell, did png_read_filter_row_mmx_paeth(), too. Comments not - * cleaned up/shortened in either routine, but functionality is complete - * and seems to be working fine. - * - * 20000829: - * - ahhh, figured out last(?) bit of gcc/gas asm-fu: if register is listed - * as an input reg (with dummy output variables, etc.), then it *cannot* - * also appear in the clobber list or gcc 2.95.2 will barf. The solution - * is simple enough... - * - * 20000914: - * - bug in png_read_filter_row_mmx_avg(): 16-bit grayscale not handled - * correctly (but 48-bit RGB just fine) - * - * 20000916: - * - fixed bug in png_read_filter_row_mmx_avg(), bpp == 2 case; three errors: - * - "_ShiftBpp.use = 24;" should have been "_ShiftBpp.use = 16;" - * - "_ShiftRem.use = 40;" should have been "_ShiftRem.use = 48;" - * - "psllq _ShiftRem, %%mm2" should have been "psrlq _ShiftRem, %%mm2" - * - * 20010101: - * - added new png_init_mmx_flags() function (here only because it needs to - * call mmxsupport(), which should probably become global png_mmxsupport()); - * modified other MMX routines to run conditionally (png_ptr->asm_flags) - * - * 20010103: - * - renamed mmxsupport() to png_mmx_support(), with auto-set of mmx_supported, - * and made it public; moved png_init_mmx_flags() to png.c as internal func - * - * 20010104: - * - removed dependency on png_read_filter_row_c() (C code already duplicated - * within MMX version of png_read_filter_row()) so no longer necessary to - * compile it into pngrutil.o - * - * 20010310: - * - fixed buffer-overrun bug in png_combine_row() C code (non-MMX) - * - * 20020304: - * - eliminated incorrect use of width_mmx in pixel_bytes == 8 case - * - * STILL TO DO: - * - test png_do_read_interlace() 64-bit case (pixel_bytes == 8) - * - write MMX code for 48-bit case (pixel_bytes == 6) - * - figure out what's up with 24-bit case (pixel_bytes == 3): - * why subtract 8 from width_mmx in the pass 4/5 case? - * (only width_mmx case) (near line 1606) - * - rewrite all MMX interlacing code so it's aligned with beginning - * of the row buffer, not the end (see 19991007 for details) - * x pick one version of mmxsupport() and get rid of the other - * - add error messages to any remaining bogus default cases - * - enable pixel_depth == 8 cases in png_read_filter_row()? (test speed) - * x add support for runtime enable/disable/query of various MMX routines - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_USE_PNGGCCRD) - -int PNGAPI png_mmx_support(void); - -#ifdef PNG_USE_LOCAL_ARRAYS -static const int FARDATA png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; -static const int FARDATA png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; -static const int FARDATA png_pass_width[7] = {8, 4, 4, 2, 2, 1, 1}; -#endif - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) -/* djgpp, Win32, and Cygwin add their own underscores to global variables, - * so define them without: */ -#if defined(__DJGPP__) || defined(WIN32) || defined(__CYGWIN__) -# define _mmx_supported mmx_supported -# define _const4 const4 -# define _const6 const6 -# define _mask8_0 mask8_0 -# define _mask16_1 mask16_1 -# define _mask16_0 mask16_0 -# define _mask24_2 mask24_2 -# define _mask24_1 mask24_1 -# define _mask24_0 mask24_0 -# define _mask32_3 mask32_3 -# define _mask32_2 mask32_2 -# define _mask32_1 mask32_1 -# define _mask32_0 mask32_0 -# define _mask48_5 mask48_5 -# define _mask48_4 mask48_4 -# define _mask48_3 mask48_3 -# define _mask48_2 mask48_2 -# define _mask48_1 mask48_1 -# define _mask48_0 mask48_0 -# define _LBCarryMask LBCarryMask -# define _HBClearMask HBClearMask -# define _ActiveMask ActiveMask -# define _ActiveMask2 ActiveMask2 -# define _ActiveMaskEnd ActiveMaskEnd -# define _ShiftBpp ShiftBpp -# define _ShiftRem ShiftRem -#ifdef PNG_THREAD_UNSAFE_OK -# define _unmask unmask -# define _FullLength FullLength -# define _MMXLength MMXLength -# define _dif dif -# define _patemp patemp -# define _pbtemp pbtemp -# define _pctemp pctemp -#endif -#endif - - -/* These constants are used in the inlined MMX assembly code. - Ignore gcc's "At top level: defined but not used" warnings. */ - -/* GRR 20000706: originally _unmask was needed only when compiling with -fPIC, - * since that case uses the %ebx register for indexing the Global Offset Table - * and there were no other registers available. But gcc 2.95 and later emit - * "more than 10 operands in `asm'" errors when %ebx is used to preload unmask - * in the non-PIC case, so we'll just use the global unconditionally now. - */ -#ifdef PNG_THREAD_UNSAFE_OK -static int _unmask; -#endif - -static unsigned long long _mask8_0 = 0x0102040810204080LL; - -static unsigned long long _mask16_1 = 0x0101020204040808LL; -static unsigned long long _mask16_0 = 0x1010202040408080LL; - -static unsigned long long _mask24_2 = 0x0101010202020404LL; -static unsigned long long _mask24_1 = 0x0408080810101020LL; -static unsigned long long _mask24_0 = 0x2020404040808080LL; - -static unsigned long long _mask32_3 = 0x0101010102020202LL; -static unsigned long long _mask32_2 = 0x0404040408080808LL; -static unsigned long long _mask32_1 = 0x1010101020202020LL; -static unsigned long long _mask32_0 = 0x4040404080808080LL; - -static unsigned long long _mask48_5 = 0x0101010101010202LL; -static unsigned long long _mask48_4 = 0x0202020204040404LL; -static unsigned long long _mask48_3 = 0x0404080808080808LL; -static unsigned long long _mask48_2 = 0x1010101010102020LL; -static unsigned long long _mask48_1 = 0x2020202040404040LL; -static unsigned long long _mask48_0 = 0x4040808080808080LL; - -static unsigned long long _const4 = 0x0000000000FFFFFFLL; -//static unsigned long long _const5 = 0x000000FFFFFF0000LL; // NOT USED -static unsigned long long _const6 = 0x00000000000000FFLL; - -// These are used in the row-filter routines and should/would be local -// variables if not for gcc addressing limitations. -// WARNING: Their presence probably defeats the thread safety of libpng. - -#ifdef PNG_THREAD_UNSAFE_OK -static png_uint_32 _FullLength; -static png_uint_32 _MMXLength; -static int _dif; -static int _patemp; // temp variables for Paeth routine -static int _pbtemp; -static int _pctemp; -#endif - -void /* PRIVATE */ -png_squelch_warnings(void) -{ -#ifdef PNG_THREAD_UNSAFE_OK - _dif = _dif; - _patemp = _patemp; - _pbtemp = _pbtemp; - _pctemp = _pctemp; - _MMXLength = _MMXLength; -#endif - _const4 = _const4; - _const6 = _const6; - _mask8_0 = _mask8_0; - _mask16_1 = _mask16_1; - _mask16_0 = _mask16_0; - _mask24_2 = _mask24_2; - _mask24_1 = _mask24_1; - _mask24_0 = _mask24_0; - _mask32_3 = _mask32_3; - _mask32_2 = _mask32_2; - _mask32_1 = _mask32_1; - _mask32_0 = _mask32_0; - _mask48_5 = _mask48_5; - _mask48_4 = _mask48_4; - _mask48_3 = _mask48_3; - _mask48_2 = _mask48_2; - _mask48_1 = _mask48_1; - _mask48_0 = _mask48_0; -} -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - - -static int _mmx_supported = 2; - -/*===========================================================================*/ -/* */ -/* P N G _ C O M B I N E _ R O W */ -/* */ -/*===========================================================================*/ - -#if defined(PNG_HAVE_ASSEMBLER_COMBINE_ROW) - -#define BPP2 2 -#define BPP3 3 /* bytes per pixel (a.k.a. pixel_bytes) */ -#define BPP4 4 -#define BPP6 6 /* (defined only to help avoid cut-and-paste errors) */ -#define BPP8 8 - -/* Combines the row recently read in with the previous row. - This routine takes care of alpha and transparency if requested. - This routine also handles the two methods of progressive display - of interlaced images, depending on the mask value. - The mask value describes which pixels are to be combined with - the row. The pattern always repeats every 8 pixels, so just 8 - bits are needed. A one indicates the pixel is to be combined; a - zero indicates the pixel is to be skipped. This is in addition - to any alpha or transparency value associated with the pixel. - If you want all pixels to be combined, pass 0xff (255) in mask. */ - -/* Use this routine for the x86 platform - it uses a faster MMX routine - if the machine supports MMX. */ - -void /* PRIVATE */ -png_combine_row(png_structp png_ptr, png_bytep row, int mask) -{ - png_debug(1, "in png_combine_row (pnggccrd.c)\n"); - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) - if (_mmx_supported == 2) { - /* this should have happened in png_init_mmx_flags() already */ - png_warning(png_ptr, "asm_flags may not have been initialized"); - png_mmx_support(); - } -#endif - - if (mask == 0xff) - { - png_debug(2,"mask == 0xff: doing single png_memcpy()\n"); - png_memcpy(row, png_ptr->row_buf + 1, - (png_size_t)((png_ptr->width * png_ptr->row_info.pixel_depth + 7) >> 3)); - } - else /* (png_combine_row() is never called with mask == 0) */ - { - switch (png_ptr->row_info.pixel_depth) - { - case 1: /* png_ptr->row_info.pixel_depth */ - { - png_bytep sp; - png_bytep dp; - int s_inc, s_start, s_end; - int m; - int shift; - png_uint_32 i; - - sp = png_ptr->row_buf + 1; - dp = row; - m = 0x80; -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - { - s_start = 0; - s_end = 7; - s_inc = 1; - } - else -#endif - { - s_start = 7; - s_end = 0; - s_inc = -1; - } - - shift = s_start; - - for (i = 0; i < png_ptr->width; i++) - { - if (m & mask) - { - int value; - - value = (*sp >> shift) & 0x1; - *dp &= (png_byte)((0x7f7f >> (7 - shift)) & 0xff); - *dp |= (png_byte)(value << shift); - } - - if (shift == s_end) - { - shift = s_start; - sp++; - dp++; - } - else - shift += s_inc; - - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - - case 2: /* png_ptr->row_info.pixel_depth */ - { - png_bytep sp; - png_bytep dp; - int s_start, s_end, s_inc; - int m; - int shift; - png_uint_32 i; - int value; - - sp = png_ptr->row_buf + 1; - dp = row; - m = 0x80; -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - { - s_start = 0; - s_end = 6; - s_inc = 2; - } - else -#endif - { - s_start = 6; - s_end = 0; - s_inc = -2; - } - - shift = s_start; - - for (i = 0; i < png_ptr->width; i++) - { - if (m & mask) - { - value = (*sp >> shift) & 0x3; - *dp &= (png_byte)((0x3f3f >> (6 - shift)) & 0xff); - *dp |= (png_byte)(value << shift); - } - - if (shift == s_end) - { - shift = s_start; - sp++; - dp++; - } - else - shift += s_inc; - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - - case 4: /* png_ptr->row_info.pixel_depth */ - { - png_bytep sp; - png_bytep dp; - int s_start, s_end, s_inc; - int m; - int shift; - png_uint_32 i; - int value; - - sp = png_ptr->row_buf + 1; - dp = row; - m = 0x80; -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - { - s_start = 0; - s_end = 4; - s_inc = 4; - } - else -#endif - { - s_start = 4; - s_end = 0; - s_inc = -4; - } - shift = s_start; - - for (i = 0; i < png_ptr->width; i++) - { - if (m & mask) - { - value = (*sp >> shift) & 0xf; - *dp &= (png_byte)((0xf0f >> (4 - shift)) & 0xff); - *dp |= (png_byte)(value << shift); - } - - if (shift == s_end) - { - shift = s_start; - sp++; - dp++; - } - else - shift += s_inc; - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - - case 8: /* png_ptr->row_info.pixel_depth */ - { - png_bytep srcptr; - png_bytep dstptr; - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK) -#if !defined(PNG_1_0_X) - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW) - /* && _mmx_supported */ ) -#else - if (_mmx_supported) -#endif - { - png_uint_32 len; - int diff; - int dummy_value_a; // fix 'forbidden register spilled' error - int dummy_value_d; - int dummy_value_c; - int dummy_value_S; - int dummy_value_D; - _unmask = ~mask; // global variable for -fPIC version - srcptr = png_ptr->row_buf + 1; - dstptr = row; - len = png_ptr->width &~7; // reduce to multiple of 8 - diff = (int) (png_ptr->width & 7); // amount lost - - __asm__ __volatile__ ( - "movd _unmask, %%mm7 \n\t" // load bit pattern - "psubb %%mm6, %%mm6 \n\t" // zero mm6 - "punpcklbw %%mm7, %%mm7 \n\t" - "punpcklwd %%mm7, %%mm7 \n\t" - "punpckldq %%mm7, %%mm7 \n\t" // fill reg with 8 masks - - "movq _mask8_0, %%mm0 \n\t" - "pand %%mm7, %%mm0 \n\t" // nonzero if keep byte - "pcmpeqb %%mm6, %%mm0 \n\t" // zeros->1s, v versa - -// preload "movl len, %%ecx \n\t" // load length of line -// preload "movl srcptr, %%esi \n\t" // load source -// preload "movl dstptr, %%edi \n\t" // load dest - - "cmpl $0, %%ecx \n\t" // len == 0 ? - "je mainloop8end \n\t" - - "mainloop8: \n\t" - "movq (%%esi), %%mm4 \n\t" // *srcptr - "pand %%mm0, %%mm4 \n\t" - "movq %%mm0, %%mm6 \n\t" - "pandn (%%edi), %%mm6 \n\t" // *dstptr - "por %%mm6, %%mm4 \n\t" - "movq %%mm4, (%%edi) \n\t" - "addl $8, %%esi \n\t" // inc by 8 bytes processed - "addl $8, %%edi \n\t" - "subl $8, %%ecx \n\t" // dec by 8 pixels processed - "ja mainloop8 \n\t" - - "mainloop8end: \n\t" -// preload "movl diff, %%ecx \n\t" // (diff is in eax) - "movl %%eax, %%ecx \n\t" - "cmpl $0, %%ecx \n\t" - "jz end8 \n\t" -// preload "movl mask, %%edx \n\t" - "sall $24, %%edx \n\t" // make low byte, high byte - - "secondloop8: \n\t" - "sall %%edx \n\t" // move high bit to CF - "jnc skip8 \n\t" // if CF = 0 - "movb (%%esi), %%al \n\t" - "movb %%al, (%%edi) \n\t" - - "skip8: \n\t" - "incl %%esi \n\t" - "incl %%edi \n\t" - "decl %%ecx \n\t" - "jnz secondloop8 \n\t" - - "end8: \n\t" - "EMMS \n\t" // DONE - - : "=a" (dummy_value_a), // output regs (dummy) - "=d" (dummy_value_d), - "=c" (dummy_value_c), - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "3" (srcptr), // esi // input regs - "4" (dstptr), // edi - "0" (diff), // eax -// was (unmask) "b" RESERVED // ebx // Global Offset Table idx - "2" (len), // ecx - "1" (mask) // edx - -#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm4", "%mm6", "%mm7" // clobber list -#endif - ); - } - else /* mmx _not supported - Use modified C routine */ -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - { - register png_uint_32 i; - png_uint_32 initial_val = png_pass_start[png_ptr->pass]; - /* png.c: png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; */ - register int stride = png_pass_inc[png_ptr->pass]; - /* png.c: png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; */ - register int rep_bytes = png_pass_width[png_ptr->pass]; - /* png.c: png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; */ - png_uint_32 len = png_ptr->width &~7; /* reduce to mult. of 8 */ - int diff = (int) (png_ptr->width & 7); /* amount lost */ - register png_uint_32 final_val = len; /* GRR bugfix */ - - srcptr = png_ptr->row_buf + 1 + initial_val; - dstptr = row + initial_val; - - for (i = initial_val; i < final_val; i += stride) - { - png_memcpy(dstptr, srcptr, rep_bytes); - srcptr += stride; - dstptr += stride; - } - if (diff) /* number of leftover pixels: 3 for pngtest */ - { - final_val+=diff /* *BPP1 */ ; - for (; i < final_val; i += stride) - { - if (rep_bytes > (int)(final_val-i)) - rep_bytes = (int)(final_val-i); - png_memcpy(dstptr, srcptr, rep_bytes); - srcptr += stride; - dstptr += stride; - } - } - - } /* end of else (_mmx_supported) */ - - break; - } /* end 8 bpp */ - - case 16: /* png_ptr->row_info.pixel_depth */ - { - png_bytep srcptr; - png_bytep dstptr; - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK) -#if !defined(PNG_1_0_X) - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW) - /* && _mmx_supported */ ) -#else - if (_mmx_supported) -#endif - { - png_uint_32 len; - int diff; - int dummy_value_a; // fix 'forbidden register spilled' error - int dummy_value_d; - int dummy_value_c; - int dummy_value_S; - int dummy_value_D; - _unmask = ~mask; // global variable for -fPIC version - srcptr = png_ptr->row_buf + 1; - dstptr = row; - len = png_ptr->width &~7; // reduce to multiple of 8 - diff = (int) (png_ptr->width & 7); // amount lost // - - __asm__ __volatile__ ( - "movd _unmask, %%mm7 \n\t" // load bit pattern - "psubb %%mm6, %%mm6 \n\t" // zero mm6 - "punpcklbw %%mm7, %%mm7 \n\t" - "punpcklwd %%mm7, %%mm7 \n\t" - "punpckldq %%mm7, %%mm7 \n\t" // fill reg with 8 masks - - "movq _mask16_0, %%mm0 \n\t" - "movq _mask16_1, %%mm1 \n\t" - - "pand %%mm7, %%mm0 \n\t" - "pand %%mm7, %%mm1 \n\t" - - "pcmpeqb %%mm6, %%mm0 \n\t" - "pcmpeqb %%mm6, %%mm1 \n\t" - -// preload "movl len, %%ecx \n\t" // load length of line -// preload "movl srcptr, %%esi \n\t" // load source -// preload "movl dstptr, %%edi \n\t" // load dest - - "cmpl $0, %%ecx \n\t" - "jz mainloop16end \n\t" - - "mainloop16: \n\t" - "movq (%%esi), %%mm4 \n\t" - "pand %%mm0, %%mm4 \n\t" - "movq %%mm0, %%mm6 \n\t" - "movq (%%edi), %%mm7 \n\t" - "pandn %%mm7, %%mm6 \n\t" - "por %%mm6, %%mm4 \n\t" - "movq %%mm4, (%%edi) \n\t" - - "movq 8(%%esi), %%mm5 \n\t" - "pand %%mm1, %%mm5 \n\t" - "movq %%mm1, %%mm7 \n\t" - "movq 8(%%edi), %%mm6 \n\t" - "pandn %%mm6, %%mm7 \n\t" - "por %%mm7, %%mm5 \n\t" - "movq %%mm5, 8(%%edi) \n\t" - - "addl $16, %%esi \n\t" // inc by 16 bytes processed - "addl $16, %%edi \n\t" - "subl $8, %%ecx \n\t" // dec by 8 pixels processed - "ja mainloop16 \n\t" - - "mainloop16end: \n\t" -// preload "movl diff, %%ecx \n\t" // (diff is in eax) - "movl %%eax, %%ecx \n\t" - "cmpl $0, %%ecx \n\t" - "jz end16 \n\t" -// preload "movl mask, %%edx \n\t" - "sall $24, %%edx \n\t" // make low byte, high byte - - "secondloop16: \n\t" - "sall %%edx \n\t" // move high bit to CF - "jnc skip16 \n\t" // if CF = 0 - "movw (%%esi), %%ax \n\t" - "movw %%ax, (%%edi) \n\t" - - "skip16: \n\t" - "addl $2, %%esi \n\t" - "addl $2, %%edi \n\t" - "decl %%ecx \n\t" - "jnz secondloop16 \n\t" - - "end16: \n\t" - "EMMS \n\t" // DONE - - : "=a" (dummy_value_a), // output regs (dummy) - "=c" (dummy_value_c), - "=d" (dummy_value_d), - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "0" (diff), // eax // input regs -// was (unmask) " " RESERVED // ebx // Global Offset Table idx - "1" (len), // ecx - "2" (mask), // edx - "3" (srcptr), // esi - "4" (dstptr) // edi - -#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1", "%mm4" // clobber list - , "%mm5", "%mm6", "%mm7" -#endif - ); - } - else /* mmx _not supported - Use modified C routine */ -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - { - register png_uint_32 i; - png_uint_32 initial_val = BPP2 * png_pass_start[png_ptr->pass]; - /* png.c: png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; */ - register int stride = BPP2 * png_pass_inc[png_ptr->pass]; - /* png.c: png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; */ - register int rep_bytes = BPP2 * png_pass_width[png_ptr->pass]; - /* png.c: png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; */ - png_uint_32 len = png_ptr->width &~7; /* reduce to mult. of 8 */ - int diff = (int) (png_ptr->width & 7); /* amount lost */ - register png_uint_32 final_val = BPP2 * len; /* GRR bugfix */ - - srcptr = png_ptr->row_buf + 1 + initial_val; - dstptr = row + initial_val; - - for (i = initial_val; i < final_val; i += stride) - { - png_memcpy(dstptr, srcptr, rep_bytes); - srcptr += stride; - dstptr += stride; - } - if (diff) /* number of leftover pixels: 3 for pngtest */ - { - final_val+=diff*BPP2; - for (; i < final_val; i += stride) - { - if (rep_bytes > (int)(final_val-i)) - rep_bytes = (int)(final_val-i); - png_memcpy(dstptr, srcptr, rep_bytes); - srcptr += stride; - dstptr += stride; - } - } - } /* end of else (_mmx_supported) */ - - break; - } /* end 16 bpp */ - - case 24: /* png_ptr->row_info.pixel_depth */ - { - png_bytep srcptr; - png_bytep dstptr; - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK) -#if !defined(PNG_1_0_X) - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW) - /* && _mmx_supported */ ) -#else - if (_mmx_supported) -#endif - { - png_uint_32 len; - int diff; - int dummy_value_a; // fix 'forbidden register spilled' error - int dummy_value_d; - int dummy_value_c; - int dummy_value_S; - int dummy_value_D; - _unmask = ~mask; // global variable for -fPIC version - srcptr = png_ptr->row_buf + 1; - dstptr = row; - len = png_ptr->width &~7; // reduce to multiple of 8 - diff = (int) (png_ptr->width & 7); // amount lost // - - __asm__ __volatile__ ( - "movd _unmask, %%mm7 \n\t" // load bit pattern - "psubb %%mm6, %%mm6 \n\t" // zero mm6 - "punpcklbw %%mm7, %%mm7 \n\t" - "punpcklwd %%mm7, %%mm7 \n\t" - "punpckldq %%mm7, %%mm7 \n\t" // fill reg with 8 masks - - "movq _mask24_0, %%mm0 \n\t" - "movq _mask24_1, %%mm1 \n\t" - "movq _mask24_2, %%mm2 \n\t" - - "pand %%mm7, %%mm0 \n\t" - "pand %%mm7, %%mm1 \n\t" - "pand %%mm7, %%mm2 \n\t" - - "pcmpeqb %%mm6, %%mm0 \n\t" - "pcmpeqb %%mm6, %%mm1 \n\t" - "pcmpeqb %%mm6, %%mm2 \n\t" - -// preload "movl len, %%ecx \n\t" // load length of line -// preload "movl srcptr, %%esi \n\t" // load source -// preload "movl dstptr, %%edi \n\t" // load dest - - "cmpl $0, %%ecx \n\t" - "jz mainloop24end \n\t" - - "mainloop24: \n\t" - "movq (%%esi), %%mm4 \n\t" - "pand %%mm0, %%mm4 \n\t" - "movq %%mm0, %%mm6 \n\t" - "movq (%%edi), %%mm7 \n\t" - "pandn %%mm7, %%mm6 \n\t" - "por %%mm6, %%mm4 \n\t" - "movq %%mm4, (%%edi) \n\t" - - "movq 8(%%esi), %%mm5 \n\t" - "pand %%mm1, %%mm5 \n\t" - "movq %%mm1, %%mm7 \n\t" - "movq 8(%%edi), %%mm6 \n\t" - "pandn %%mm6, %%mm7 \n\t" - "por %%mm7, %%mm5 \n\t" - "movq %%mm5, 8(%%edi) \n\t" - - "movq 16(%%esi), %%mm6 \n\t" - "pand %%mm2, %%mm6 \n\t" - "movq %%mm2, %%mm4 \n\t" - "movq 16(%%edi), %%mm7 \n\t" - "pandn %%mm7, %%mm4 \n\t" - "por %%mm4, %%mm6 \n\t" - "movq %%mm6, 16(%%edi) \n\t" - - "addl $24, %%esi \n\t" // inc by 24 bytes processed - "addl $24, %%edi \n\t" - "subl $8, %%ecx \n\t" // dec by 8 pixels processed - - "ja mainloop24 \n\t" - - "mainloop24end: \n\t" -// preload "movl diff, %%ecx \n\t" // (diff is in eax) - "movl %%eax, %%ecx \n\t" - "cmpl $0, %%ecx \n\t" - "jz end24 \n\t" -// preload "movl mask, %%edx \n\t" - "sall $24, %%edx \n\t" // make low byte, high byte - - "secondloop24: \n\t" - "sall %%edx \n\t" // move high bit to CF - "jnc skip24 \n\t" // if CF = 0 - "movw (%%esi), %%ax \n\t" - "movw %%ax, (%%edi) \n\t" - "xorl %%eax, %%eax \n\t" - "movb 2(%%esi), %%al \n\t" - "movb %%al, 2(%%edi) \n\t" - - "skip24: \n\t" - "addl $3, %%esi \n\t" - "addl $3, %%edi \n\t" - "decl %%ecx \n\t" - "jnz secondloop24 \n\t" - - "end24: \n\t" - "EMMS \n\t" // DONE - - : "=a" (dummy_value_a), // output regs (dummy) - "=d" (dummy_value_d), - "=c" (dummy_value_c), - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "3" (srcptr), // esi // input regs - "4" (dstptr), // edi - "0" (diff), // eax -// was (unmask) "b" RESERVED // ebx // Global Offset Table idx - "2" (len), // ecx - "1" (mask) // edx - -#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1", "%mm2" // clobber list - , "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - } - else /* mmx _not supported - Use modified C routine */ -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - { - register png_uint_32 i; - png_uint_32 initial_val = BPP3 * png_pass_start[png_ptr->pass]; - /* png.c: png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; */ - register int stride = BPP3 * png_pass_inc[png_ptr->pass]; - /* png.c: png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; */ - register int rep_bytes = BPP3 * png_pass_width[png_ptr->pass]; - /* png.c: png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; */ - png_uint_32 len = png_ptr->width &~7; /* reduce to mult. of 8 */ - int diff = (int) (png_ptr->width & 7); /* amount lost */ - register png_uint_32 final_val = BPP3 * len; /* GRR bugfix */ - - srcptr = png_ptr->row_buf + 1 + initial_val; - dstptr = row + initial_val; - - for (i = initial_val; i < final_val; i += stride) - { - png_memcpy(dstptr, srcptr, rep_bytes); - srcptr += stride; - dstptr += stride; - } - if (diff) /* number of leftover pixels: 3 for pngtest */ - { - final_val+=diff*BPP3; - for (; i < final_val; i += stride) - { - if (rep_bytes > (int)(final_val-i)) - rep_bytes = (int)(final_val-i); - png_memcpy(dstptr, srcptr, rep_bytes); - srcptr += stride; - dstptr += stride; - } - } - } /* end of else (_mmx_supported) */ - - break; - } /* end 24 bpp */ - - case 32: /* png_ptr->row_info.pixel_depth */ - { - png_bytep srcptr; - png_bytep dstptr; - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK) -#if !defined(PNG_1_0_X) - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW) - /* && _mmx_supported */ ) -#else - if (_mmx_supported) -#endif - { - png_uint_32 len; - int diff; - int dummy_value_a; // fix 'forbidden register spilled' error - int dummy_value_d; - int dummy_value_c; - int dummy_value_S; - int dummy_value_D; - _unmask = ~mask; // global variable for -fPIC version - srcptr = png_ptr->row_buf + 1; - dstptr = row; - len = png_ptr->width &~7; // reduce to multiple of 8 - diff = (int) (png_ptr->width & 7); // amount lost // - - __asm__ __volatile__ ( - "movd _unmask, %%mm7 \n\t" // load bit pattern - "psubb %%mm6, %%mm6 \n\t" // zero mm6 - "punpcklbw %%mm7, %%mm7 \n\t" - "punpcklwd %%mm7, %%mm7 \n\t" - "punpckldq %%mm7, %%mm7 \n\t" // fill reg with 8 masks - - "movq _mask32_0, %%mm0 \n\t" - "movq _mask32_1, %%mm1 \n\t" - "movq _mask32_2, %%mm2 \n\t" - "movq _mask32_3, %%mm3 \n\t" - - "pand %%mm7, %%mm0 \n\t" - "pand %%mm7, %%mm1 \n\t" - "pand %%mm7, %%mm2 \n\t" - "pand %%mm7, %%mm3 \n\t" - - "pcmpeqb %%mm6, %%mm0 \n\t" - "pcmpeqb %%mm6, %%mm1 \n\t" - "pcmpeqb %%mm6, %%mm2 \n\t" - "pcmpeqb %%mm6, %%mm3 \n\t" - -// preload "movl len, %%ecx \n\t" // load length of line -// preload "movl srcptr, %%esi \n\t" // load source -// preload "movl dstptr, %%edi \n\t" // load dest - - "cmpl $0, %%ecx \n\t" // lcr - "jz mainloop32end \n\t" - - "mainloop32: \n\t" - "movq (%%esi), %%mm4 \n\t" - "pand %%mm0, %%mm4 \n\t" - "movq %%mm0, %%mm6 \n\t" - "movq (%%edi), %%mm7 \n\t" - "pandn %%mm7, %%mm6 \n\t" - "por %%mm6, %%mm4 \n\t" - "movq %%mm4, (%%edi) \n\t" - - "movq 8(%%esi), %%mm5 \n\t" - "pand %%mm1, %%mm5 \n\t" - "movq %%mm1, %%mm7 \n\t" - "movq 8(%%edi), %%mm6 \n\t" - "pandn %%mm6, %%mm7 \n\t" - "por %%mm7, %%mm5 \n\t" - "movq %%mm5, 8(%%edi) \n\t" - - "movq 16(%%esi), %%mm6 \n\t" - "pand %%mm2, %%mm6 \n\t" - "movq %%mm2, %%mm4 \n\t" - "movq 16(%%edi), %%mm7 \n\t" - "pandn %%mm7, %%mm4 \n\t" - "por %%mm4, %%mm6 \n\t" - "movq %%mm6, 16(%%edi) \n\t" - - "movq 24(%%esi), %%mm7 \n\t" - "pand %%mm3, %%mm7 \n\t" - "movq %%mm3, %%mm5 \n\t" - "movq 24(%%edi), %%mm4 \n\t" - "pandn %%mm4, %%mm5 \n\t" - "por %%mm5, %%mm7 \n\t" - "movq %%mm7, 24(%%edi) \n\t" - - "addl $32, %%esi \n\t" // inc by 32 bytes processed - "addl $32, %%edi \n\t" - "subl $8, %%ecx \n\t" // dec by 8 pixels processed - "ja mainloop32 \n\t" - - "mainloop32end: \n\t" -// preload "movl diff, %%ecx \n\t" // (diff is in eax) - "movl %%eax, %%ecx \n\t" - "cmpl $0, %%ecx \n\t" - "jz end32 \n\t" -// preload "movl mask, %%edx \n\t" - "sall $24, %%edx \n\t" // low byte => high byte - - "secondloop32: \n\t" - "sall %%edx \n\t" // move high bit to CF - "jnc skip32 \n\t" // if CF = 0 - "movl (%%esi), %%eax \n\t" - "movl %%eax, (%%edi) \n\t" - - "skip32: \n\t" - "addl $4, %%esi \n\t" - "addl $4, %%edi \n\t" - "decl %%ecx \n\t" - "jnz secondloop32 \n\t" - - "end32: \n\t" - "EMMS \n\t" // DONE - - : "=a" (dummy_value_a), // output regs (dummy) - "=d" (dummy_value_d), - "=c" (dummy_value_c), - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "3" (srcptr), // esi // input regs - "4" (dstptr), // edi - "0" (diff), // eax -// was (unmask) "b" RESERVED // ebx // Global Offset Table idx - "2" (len), // ecx - "1" (mask) // edx - -#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1", "%mm2", "%mm3" // clobber list - , "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - } - else /* mmx _not supported - Use modified C routine */ -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - { - register png_uint_32 i; - png_uint_32 initial_val = BPP4 * png_pass_start[png_ptr->pass]; - /* png.c: png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; */ - register int stride = BPP4 * png_pass_inc[png_ptr->pass]; - /* png.c: png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; */ - register int rep_bytes = BPP4 * png_pass_width[png_ptr->pass]; - /* png.c: png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; */ - png_uint_32 len = png_ptr->width &~7; /* reduce to mult. of 8 */ - int diff = (int) (png_ptr->width & 7); /* amount lost */ - register png_uint_32 final_val = BPP4 * len; /* GRR bugfix */ - - srcptr = png_ptr->row_buf + 1 + initial_val; - dstptr = row + initial_val; - - for (i = initial_val; i < final_val; i += stride) - { - png_memcpy(dstptr, srcptr, rep_bytes); - srcptr += stride; - dstptr += stride; - } - if (diff) /* number of leftover pixels: 3 for pngtest */ - { - final_val+=diff*BPP4; - for (; i < final_val; i += stride) - { - if (rep_bytes > (int)(final_val-i)) - rep_bytes = (int)(final_val-i); - png_memcpy(dstptr, srcptr, rep_bytes); - srcptr += stride; - dstptr += stride; - } - } - } /* end of else (_mmx_supported) */ - - break; - } /* end 32 bpp */ - - case 48: /* png_ptr->row_info.pixel_depth */ - { - png_bytep srcptr; - png_bytep dstptr; - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK) -#if !defined(PNG_1_0_X) - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW) - /* && _mmx_supported */ ) -#else - if (_mmx_supported) -#endif - { - png_uint_32 len; - int diff; - int dummy_value_a; // fix 'forbidden register spilled' error - int dummy_value_d; - int dummy_value_c; - int dummy_value_S; - int dummy_value_D; - _unmask = ~mask; // global variable for -fPIC version - srcptr = png_ptr->row_buf + 1; - dstptr = row; - len = png_ptr->width &~7; // reduce to multiple of 8 - diff = (int) (png_ptr->width & 7); // amount lost // - - __asm__ __volatile__ ( - "movd _unmask, %%mm7 \n\t" // load bit pattern - "psubb %%mm6, %%mm6 \n\t" // zero mm6 - "punpcklbw %%mm7, %%mm7 \n\t" - "punpcklwd %%mm7, %%mm7 \n\t" - "punpckldq %%mm7, %%mm7 \n\t" // fill reg with 8 masks - - "movq _mask48_0, %%mm0 \n\t" - "movq _mask48_1, %%mm1 \n\t" - "movq _mask48_2, %%mm2 \n\t" - "movq _mask48_3, %%mm3 \n\t" - "movq _mask48_4, %%mm4 \n\t" - "movq _mask48_5, %%mm5 \n\t" - - "pand %%mm7, %%mm0 \n\t" - "pand %%mm7, %%mm1 \n\t" - "pand %%mm7, %%mm2 \n\t" - "pand %%mm7, %%mm3 \n\t" - "pand %%mm7, %%mm4 \n\t" - "pand %%mm7, %%mm5 \n\t" - - "pcmpeqb %%mm6, %%mm0 \n\t" - "pcmpeqb %%mm6, %%mm1 \n\t" - "pcmpeqb %%mm6, %%mm2 \n\t" - "pcmpeqb %%mm6, %%mm3 \n\t" - "pcmpeqb %%mm6, %%mm4 \n\t" - "pcmpeqb %%mm6, %%mm5 \n\t" - -// preload "movl len, %%ecx \n\t" // load length of line -// preload "movl srcptr, %%esi \n\t" // load source -// preload "movl dstptr, %%edi \n\t" // load dest - - "cmpl $0, %%ecx \n\t" - "jz mainloop48end \n\t" - - "mainloop48: \n\t" - "movq (%%esi), %%mm7 \n\t" - "pand %%mm0, %%mm7 \n\t" - "movq %%mm0, %%mm6 \n\t" - "pandn (%%edi), %%mm6 \n\t" - "por %%mm6, %%mm7 \n\t" - "movq %%mm7, (%%edi) \n\t" - - "movq 8(%%esi), %%mm6 \n\t" - "pand %%mm1, %%mm6 \n\t" - "movq %%mm1, %%mm7 \n\t" - "pandn 8(%%edi), %%mm7 \n\t" - "por %%mm7, %%mm6 \n\t" - "movq %%mm6, 8(%%edi) \n\t" - - "movq 16(%%esi), %%mm6 \n\t" - "pand %%mm2, %%mm6 \n\t" - "movq %%mm2, %%mm7 \n\t" - "pandn 16(%%edi), %%mm7 \n\t" - "por %%mm7, %%mm6 \n\t" - "movq %%mm6, 16(%%edi) \n\t" - - "movq 24(%%esi), %%mm7 \n\t" - "pand %%mm3, %%mm7 \n\t" - "movq %%mm3, %%mm6 \n\t" - "pandn 24(%%edi), %%mm6 \n\t" - "por %%mm6, %%mm7 \n\t" - "movq %%mm7, 24(%%edi) \n\t" - - "movq 32(%%esi), %%mm6 \n\t" - "pand %%mm4, %%mm6 \n\t" - "movq %%mm4, %%mm7 \n\t" - "pandn 32(%%edi), %%mm7 \n\t" - "por %%mm7, %%mm6 \n\t" - "movq %%mm6, 32(%%edi) \n\t" - - "movq 40(%%esi), %%mm7 \n\t" - "pand %%mm5, %%mm7 \n\t" - "movq %%mm5, %%mm6 \n\t" - "pandn 40(%%edi), %%mm6 \n\t" - "por %%mm6, %%mm7 \n\t" - "movq %%mm7, 40(%%edi) \n\t" - - "addl $48, %%esi \n\t" // inc by 48 bytes processed - "addl $48, %%edi \n\t" - "subl $8, %%ecx \n\t" // dec by 8 pixels processed - - "ja mainloop48 \n\t" - - "mainloop48end: \n\t" -// preload "movl diff, %%ecx \n\t" // (diff is in eax) - "movl %%eax, %%ecx \n\t" - "cmpl $0, %%ecx \n\t" - "jz end48 \n\t" -// preload "movl mask, %%edx \n\t" - "sall $24, %%edx \n\t" // make low byte, high byte - - "secondloop48: \n\t" - "sall %%edx \n\t" // move high bit to CF - "jnc skip48 \n\t" // if CF = 0 - "movl (%%esi), %%eax \n\t" - "movl %%eax, (%%edi) \n\t" - - "skip48: \n\t" - "addl $4, %%esi \n\t" - "addl $4, %%edi \n\t" - "decl %%ecx \n\t" - "jnz secondloop48 \n\t" - - "end48: \n\t" - "EMMS \n\t" // DONE - - : "=a" (dummy_value_a), // output regs (dummy) - "=d" (dummy_value_d), - "=c" (dummy_value_c), - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "3" (srcptr), // esi // input regs - "4" (dstptr), // edi - "0" (diff), // eax -// was (unmask) "b" RESERVED // ebx // Global Offset Table idx - "2" (len), // ecx - "1" (mask) // edx - -#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1", "%mm2", "%mm3" // clobber list - , "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - } - else /* mmx _not supported - Use modified C routine */ -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - { - register png_uint_32 i; - png_uint_32 initial_val = BPP6 * png_pass_start[png_ptr->pass]; - /* png.c: png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; */ - register int stride = BPP6 * png_pass_inc[png_ptr->pass]; - /* png.c: png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; */ - register int rep_bytes = BPP6 * png_pass_width[png_ptr->pass]; - /* png.c: png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; */ - png_uint_32 len = png_ptr->width &~7; /* reduce to mult. of 8 */ - int diff = (int) (png_ptr->width & 7); /* amount lost */ - register png_uint_32 final_val = BPP6 * len; /* GRR bugfix */ - - srcptr = png_ptr->row_buf + 1 + initial_val; - dstptr = row + initial_val; - - for (i = initial_val; i < final_val; i += stride) - { - png_memcpy(dstptr, srcptr, rep_bytes); - srcptr += stride; - dstptr += stride; - } - if (diff) /* number of leftover pixels: 3 for pngtest */ - { - final_val+=diff*BPP6; - for (; i < final_val; i += stride) - { - if (rep_bytes > (int)(final_val-i)) - rep_bytes = (int)(final_val-i); - png_memcpy(dstptr, srcptr, rep_bytes); - srcptr += stride; - dstptr += stride; - } - } - } /* end of else (_mmx_supported) */ - - break; - } /* end 48 bpp */ - - case 64: /* png_ptr->row_info.pixel_depth */ - { - png_bytep srcptr; - png_bytep dstptr; - register png_uint_32 i; - png_uint_32 initial_val = BPP8 * png_pass_start[png_ptr->pass]; - /* png.c: png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; */ - register int stride = BPP8 * png_pass_inc[png_ptr->pass]; - /* png.c: png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; */ - register int rep_bytes = BPP8 * png_pass_width[png_ptr->pass]; - /* png.c: png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; */ - png_uint_32 len = png_ptr->width &~7; /* reduce to mult. of 8 */ - int diff = (int) (png_ptr->width & 7); /* amount lost */ - register png_uint_32 final_val = BPP8 * len; /* GRR bugfix */ - - srcptr = png_ptr->row_buf + 1 + initial_val; - dstptr = row + initial_val; - - for (i = initial_val; i < final_val; i += stride) - { - png_memcpy(dstptr, srcptr, rep_bytes); - srcptr += stride; - dstptr += stride; - } - if (diff) /* number of leftover pixels: 3 for pngtest */ - { - final_val+=diff*BPP8; - for (; i < final_val; i += stride) - { - if (rep_bytes > (int)(final_val-i)) - rep_bytes = (int)(final_val-i); - png_memcpy(dstptr, srcptr, rep_bytes); - srcptr += stride; - dstptr += stride; - } - } - - break; - } /* end 64 bpp */ - - default: /* png_ptr->row_info.pixel_depth != 1,2,4,8,16,24,32,48,64 */ - { - /* this should never happen */ - png_warning(png_ptr, "Invalid row_info.pixel_depth in pnggccrd"); - break; - } - } /* end switch (png_ptr->row_info.pixel_depth) */ - - } /* end if (non-trivial mask) */ - -} /* end png_combine_row() */ - -#endif /* PNG_HAVE_ASSEMBLER_COMBINE_ROW */ - - - - -/*===========================================================================*/ -/* */ -/* P N G _ D O _ R E A D _ I N T E R L A C E */ -/* */ -/*===========================================================================*/ - -#if defined(PNG_READ_INTERLACING_SUPPORTED) -#if defined(PNG_HAVE_ASSEMBLER_READ_INTERLACE) - -/* png_do_read_interlace() is called after any 16-bit to 8-bit conversion - * has taken place. [GRR: what other steps come before and/or after?] - */ - -void /* PRIVATE */ -png_do_read_interlace(png_structp png_ptr) -{ - png_row_infop row_info = &(png_ptr->row_info); - png_bytep row = png_ptr->row_buf + 1; - int pass = png_ptr->pass; -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - png_uint_32 transformations = png_ptr->transformations; -#endif - - png_debug(1, "in png_do_read_interlace (pnggccrd.c)\n"); - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) - if (_mmx_supported == 2) { -#if !defined(PNG_1_0_X) - /* this should have happened in png_init_mmx_flags() already */ - png_warning(png_ptr, "asm_flags may not have been initialized"); -#endif - png_mmx_support(); - } -#endif - - if (row != NULL && row_info != NULL) - { - png_uint_32 final_width; - - final_width = row_info->width * png_pass_inc[pass]; - - switch (row_info->pixel_depth) - { - case 1: - { - png_bytep sp, dp; - int sshift, dshift; - int s_start, s_end, s_inc; - png_byte v; - png_uint_32 i; - int j; - - sp = row + (png_size_t)((row_info->width - 1) >> 3); - dp = row + (png_size_t)((final_width - 1) >> 3); -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (transformations & PNG_PACKSWAP) - { - sshift = (int)((row_info->width + 7) & 7); - dshift = (int)((final_width + 7) & 7); - s_start = 7; - s_end = 0; - s_inc = -1; - } - else -#endif - { - sshift = 7 - (int)((row_info->width + 7) & 7); - dshift = 7 - (int)((final_width + 7) & 7); - s_start = 0; - s_end = 7; - s_inc = 1; - } - - for (i = row_info->width; i; i--) - { - v = (png_byte)((*sp >> sshift) & 0x1); - for (j = 0; j < png_pass_inc[pass]; j++) - { - *dp &= (png_byte)((0x7f7f >> (7 - dshift)) & 0xff); - *dp |= (png_byte)(v << dshift); - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - else - dshift += s_inc; - } - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - else - sshift += s_inc; - } - break; - } - - case 2: - { - png_bytep sp, dp; - int sshift, dshift; - int s_start, s_end, s_inc; - png_uint_32 i; - - sp = row + (png_size_t)((row_info->width - 1) >> 2); - dp = row + (png_size_t)((final_width - 1) >> 2); -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (transformations & PNG_PACKSWAP) - { - sshift = (png_size_t)(((row_info->width + 3) & 3) << 1); - dshift = (png_size_t)(((final_width + 3) & 3) << 1); - s_start = 6; - s_end = 0; - s_inc = -2; - } - else -#endif - { - sshift = (png_size_t)((3 - ((row_info->width + 3) & 3)) << 1); - dshift = (png_size_t)((3 - ((final_width + 3) & 3)) << 1); - s_start = 0; - s_end = 6; - s_inc = 2; - } - - for (i = row_info->width; i; i--) - { - png_byte v; - int j; - - v = (png_byte)((*sp >> sshift) & 0x3); - for (j = 0; j < png_pass_inc[pass]; j++) - { - *dp &= (png_byte)((0x3f3f >> (6 - dshift)) & 0xff); - *dp |= (png_byte)(v << dshift); - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - else - dshift += s_inc; - } - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - else - sshift += s_inc; - } - break; - } - - case 4: - { - png_bytep sp, dp; - int sshift, dshift; - int s_start, s_end, s_inc; - png_uint_32 i; - - sp = row + (png_size_t)((row_info->width - 1) >> 1); - dp = row + (png_size_t)((final_width - 1) >> 1); -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (transformations & PNG_PACKSWAP) - { - sshift = (png_size_t)(((row_info->width + 1) & 1) << 2); - dshift = (png_size_t)(((final_width + 1) & 1) << 2); - s_start = 4; - s_end = 0; - s_inc = -4; - } - else -#endif - { - sshift = (png_size_t)((1 - ((row_info->width + 1) & 1)) << 2); - dshift = (png_size_t)((1 - ((final_width + 1) & 1)) << 2); - s_start = 0; - s_end = 4; - s_inc = 4; - } - - for (i = row_info->width; i; i--) - { - png_byte v; - int j; - - v = (png_byte)((*sp >> sshift) & 0xf); - for (j = 0; j < png_pass_inc[pass]; j++) - { - *dp &= (png_byte)((0xf0f >> (4 - dshift)) & 0xff); - *dp |= (png_byte)(v << dshift); - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - else - dshift += s_inc; - } - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - else - sshift += s_inc; - } - break; - } - - /*====================================================================*/ - - default: /* 8-bit or larger (this is where the routine is modified) */ - { -#if 0 -// static unsigned long long _const4 = 0x0000000000FFFFFFLL; no good -// static unsigned long long const4 = 0x0000000000FFFFFFLL; no good -// unsigned long long _const4 = 0x0000000000FFFFFFLL; no good -// unsigned long long const4 = 0x0000000000FFFFFFLL; no good -#endif - png_bytep sptr, dp; - png_uint_32 i; - png_size_t pixel_bytes; - int width = (int)row_info->width; - - pixel_bytes = (row_info->pixel_depth >> 3); - - /* point sptr at the last pixel in the pre-expanded row: */ - sptr = row + (width - 1) * pixel_bytes; - - /* point dp at the last pixel position in the expanded row: */ - dp = row + (final_width - 1) * pixel_bytes; - - /* New code by Nirav Chhatrapati - Intel Corporation */ - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) -#if !defined(PNG_1_0_X) - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_INTERLACE) - /* && _mmx_supported */ ) -#else - if (_mmx_supported) -#endif - { - //-------------------------------------------------------------- - if (pixel_bytes == 3) - { - if (((pass == 0) || (pass == 1)) && width) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $21, %%edi \n\t" - // (png_pass_inc[pass] - 1)*pixel_bytes - - ".loop3_pass0: \n\t" - "movd (%%esi), %%mm0 \n\t" // x x x x x 2 1 0 - "pand _const4, %%mm0 \n\t" // z z z z z 2 1 0 - "movq %%mm0, %%mm1 \n\t" // z z z z z 2 1 0 - "psllq $16, %%mm0 \n\t" // z z z 2 1 0 z z - "movq %%mm0, %%mm2 \n\t" // z z z 2 1 0 z z - "psllq $24, %%mm0 \n\t" // 2 1 0 z z z z z - "psrlq $8, %%mm1 \n\t" // z z z z z z 2 1 - "por %%mm2, %%mm0 \n\t" // 2 1 0 2 1 0 z z - "por %%mm1, %%mm0 \n\t" // 2 1 0 2 1 0 2 1 - "movq %%mm0, %%mm3 \n\t" // 2 1 0 2 1 0 2 1 - "psllq $16, %%mm0 \n\t" // 0 2 1 0 2 1 z z - "movq %%mm3, %%mm4 \n\t" // 2 1 0 2 1 0 2 1 - "punpckhdq %%mm0, %%mm3 \n\t" // 0 2 1 0 2 1 0 2 - "movq %%mm4, 16(%%edi) \n\t" - "psrlq $32, %%mm0 \n\t" // z z z z 0 2 1 0 - "movq %%mm3, 8(%%edi) \n\t" - "punpckldq %%mm4, %%mm0 \n\t" // 1 0 2 1 0 2 1 0 - "subl $3, %%esi \n\t" - "movq %%mm0, (%%edi) \n\t" - "subl $24, %%edi \n\t" - "decl %%ecx \n\t" - "jnz .loop3_pass0 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width) // ecx -// doesn't work "i" (0x0000000000FFFFFFLL) // %1 (a.k.a. _const4) - -#if 0 /* %mm0, ..., %mm4 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1", "%mm2" // clobber list - , "%mm3", "%mm4" -#endif - ); - } - else if (((pass == 2) || (pass == 3)) && width) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $9, %%edi \n\t" - // (png_pass_inc[pass] - 1)*pixel_bytes - - ".loop3_pass2: \n\t" - "movd (%%esi), %%mm0 \n\t" // x x x x x 2 1 0 - "pand _const4, %%mm0 \n\t" // z z z z z 2 1 0 - "movq %%mm0, %%mm1 \n\t" // z z z z z 2 1 0 - "psllq $16, %%mm0 \n\t" // z z z 2 1 0 z z - "movq %%mm0, %%mm2 \n\t" // z z z 2 1 0 z z - "psllq $24, %%mm0 \n\t" // 2 1 0 z z z z z - "psrlq $8, %%mm1 \n\t" // z z z z z z 2 1 - "por %%mm2, %%mm0 \n\t" // 2 1 0 2 1 0 z z - "por %%mm1, %%mm0 \n\t" // 2 1 0 2 1 0 2 1 - "movq %%mm0, 4(%%edi) \n\t" - "psrlq $16, %%mm0 \n\t" // z z 2 1 0 2 1 0 - "subl $3, %%esi \n\t" - "movd %%mm0, (%%edi) \n\t" - "subl $12, %%edi \n\t" - "decl %%ecx \n\t" - "jnz .loop3_pass2 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width) // ecx - -#if 0 /* %mm0, ..., %mm2 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1", "%mm2" // clobber list -#endif - ); - } - else if (width) /* && ((pass == 4) || (pass == 5)) */ - { - int width_mmx = ((width >> 1) << 1) - 8; // GRR: huh? - if (width_mmx < 0) - width_mmx = 0; - width -= width_mmx; // 8 or 9 pix, 24 or 27 bytes - if (width_mmx) - { - // png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; - // sptr points at last pixel in pre-expanded row - // dp points at last pixel position in expanded row - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $3, %%esi \n\t" - "subl $9, %%edi \n\t" - // (png_pass_inc[pass] + 1)*pixel_bytes - - ".loop3_pass4: \n\t" - "movq (%%esi), %%mm0 \n\t" // x x 5 4 3 2 1 0 - "movq %%mm0, %%mm1 \n\t" // x x 5 4 3 2 1 0 - "movq %%mm0, %%mm2 \n\t" // x x 5 4 3 2 1 0 - "psllq $24, %%mm0 \n\t" // 4 3 2 1 0 z z z - "pand _const4, %%mm1 \n\t" // z z z z z 2 1 0 - "psrlq $24, %%mm2 \n\t" // z z z x x 5 4 3 - "por %%mm1, %%mm0 \n\t" // 4 3 2 1 0 2 1 0 - "movq %%mm2, %%mm3 \n\t" // z z z x x 5 4 3 - "psllq $8, %%mm2 \n\t" // z z x x 5 4 3 z - "movq %%mm0, (%%edi) \n\t" - "psrlq $16, %%mm3 \n\t" // z z z z z x x 5 - "pand _const6, %%mm3 \n\t" // z z z z z z z 5 - "por %%mm3, %%mm2 \n\t" // z z x x 5 4 3 5 - "subl $6, %%esi \n\t" - "movd %%mm2, 8(%%edi) \n\t" - "subl $12, %%edi \n\t" - "subl $2, %%ecx \n\t" - "jnz .loop3_pass4 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width_mmx) // ecx - -#if 0 /* %mm0, ..., %mm3 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1" // clobber list - , "%mm2", "%mm3" -#endif - ); - } - - sptr -= width_mmx*3; - dp -= width_mmx*6; - for (i = width; i; i--) - { - png_byte v[8]; - int j; - - png_memcpy(v, sptr, 3); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, 3); - dp -= 3; - } - sptr -= 3; - } - } - } /* end of pixel_bytes == 3 */ - - //-------------------------------------------------------------- - else if (pixel_bytes == 1) - { - if (((pass == 0) || (pass == 1)) && width) - { - int width_mmx = ((width >> 2) << 2); - width -= width_mmx; // 0-3 pixels => 0-3 bytes - if (width_mmx) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $3, %%esi \n\t" - "subl $31, %%edi \n\t" - - ".loop1_pass0: \n\t" - "movd (%%esi), %%mm0 \n\t" // x x x x 3 2 1 0 - "movq %%mm0, %%mm1 \n\t" // x x x x 3 2 1 0 - "punpcklbw %%mm0, %%mm0 \n\t" // 3 3 2 2 1 1 0 0 - "movq %%mm0, %%mm2 \n\t" // 3 3 2 2 1 1 0 0 - "punpcklwd %%mm0, %%mm0 \n\t" // 1 1 1 1 0 0 0 0 - "movq %%mm0, %%mm3 \n\t" // 1 1 1 1 0 0 0 0 - "punpckldq %%mm0, %%mm0 \n\t" // 0 0 0 0 0 0 0 0 - "punpckhdq %%mm3, %%mm3 \n\t" // 1 1 1 1 1 1 1 1 - "movq %%mm0, (%%edi) \n\t" - "punpckhwd %%mm2, %%mm2 \n\t" // 3 3 3 3 2 2 2 2 - "movq %%mm3, 8(%%edi) \n\t" - "movq %%mm2, %%mm4 \n\t" // 3 3 3 3 2 2 2 2 - "punpckldq %%mm2, %%mm2 \n\t" // 2 2 2 2 2 2 2 2 - "punpckhdq %%mm4, %%mm4 \n\t" // 3 3 3 3 3 3 3 3 - "movq %%mm2, 16(%%edi) \n\t" - "subl $4, %%esi \n\t" - "movq %%mm4, 24(%%edi) \n\t" - "subl $32, %%edi \n\t" - "subl $4, %%ecx \n\t" - "jnz .loop1_pass0 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width_mmx) // ecx - -#if 0 /* %mm0, ..., %mm4 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1", "%mm2" // clobber list - , "%mm3", "%mm4" -#endif - ); - } - - sptr -= width_mmx; - dp -= width_mmx*8; - for (i = width; i; i--) - { - int j; - - /* I simplified this part in version 1.0.4e - * here and in several other instances where - * pixel_bytes == 1 -- GR-P - * - * Original code: - * - * png_byte v[8]; - * png_memcpy(v, sptr, pixel_bytes); - * for (j = 0; j < png_pass_inc[pass]; j++) - * { - * png_memcpy(dp, v, pixel_bytes); - * dp -= pixel_bytes; - * } - * sptr -= pixel_bytes; - * - * Replacement code is in the next three lines: - */ - - for (j = 0; j < png_pass_inc[pass]; j++) - { - *dp-- = *sptr; - } - --sptr; - } - } - else if (((pass == 2) || (pass == 3)) && width) - { - int width_mmx = ((width >> 2) << 2); - width -= width_mmx; // 0-3 pixels => 0-3 bytes - if (width_mmx) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $3, %%esi \n\t" - "subl $15, %%edi \n\t" - - ".loop1_pass2: \n\t" - "movd (%%esi), %%mm0 \n\t" // x x x x 3 2 1 0 - "punpcklbw %%mm0, %%mm0 \n\t" // 3 3 2 2 1 1 0 0 - "movq %%mm0, %%mm1 \n\t" // 3 3 2 2 1 1 0 0 - "punpcklwd %%mm0, %%mm0 \n\t" // 1 1 1 1 0 0 0 0 - "punpckhwd %%mm1, %%mm1 \n\t" // 3 3 3 3 2 2 2 2 - "movq %%mm0, (%%edi) \n\t" - "subl $4, %%esi \n\t" - "movq %%mm1, 8(%%edi) \n\t" - "subl $16, %%edi \n\t" - "subl $4, %%ecx \n\t" - "jnz .loop1_pass2 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width_mmx) // ecx - -#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1" // clobber list -#endif - ); - } - - sptr -= width_mmx; - dp -= width_mmx*4; - for (i = width; i; i--) - { - int j; - - for (j = 0; j < png_pass_inc[pass]; j++) - { - *dp-- = *sptr; - } - --sptr; - } - } - else if (width) /* && ((pass == 4) || (pass == 5)) */ - { - int width_mmx = ((width >> 3) << 3); - width -= width_mmx; // 0-3 pixels => 0-3 bytes - if (width_mmx) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $7, %%esi \n\t" - "subl $15, %%edi \n\t" - - ".loop1_pass4: \n\t" - "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0 - "movq %%mm0, %%mm1 \n\t" // 7 6 5 4 3 2 1 0 - "punpcklbw %%mm0, %%mm0 \n\t" // 3 3 2 2 1 1 0 0 - "punpckhbw %%mm1, %%mm1 \n\t" // 7 7 6 6 5 5 4 4 - "movq %%mm1, 8(%%edi) \n\t" - "subl $8, %%esi \n\t" - "movq %%mm0, (%%edi) \n\t" - "subl $16, %%edi \n\t" - "subl $8, %%ecx \n\t" - "jnz .loop1_pass4 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (none) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width_mmx) // ecx - -#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1" // clobber list -#endif - ); - } - - sptr -= width_mmx; - dp -= width_mmx*2; - for (i = width; i; i--) - { - int j; - - for (j = 0; j < png_pass_inc[pass]; j++) - { - *dp-- = *sptr; - } - --sptr; - } - } - } /* end of pixel_bytes == 1 */ - - //-------------------------------------------------------------- - else if (pixel_bytes == 2) - { - if (((pass == 0) || (pass == 1)) && width) - { - int width_mmx = ((width >> 1) << 1); - width -= width_mmx; // 0,1 pixels => 0,2 bytes - if (width_mmx) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $2, %%esi \n\t" - "subl $30, %%edi \n\t" - - ".loop2_pass0: \n\t" - "movd (%%esi), %%mm0 \n\t" // x x x x 3 2 1 0 - "punpcklwd %%mm0, %%mm0 \n\t" // 3 2 3 2 1 0 1 0 - "movq %%mm0, %%mm1 \n\t" // 3 2 3 2 1 0 1 0 - "punpckldq %%mm0, %%mm0 \n\t" // 1 0 1 0 1 0 1 0 - "punpckhdq %%mm1, %%mm1 \n\t" // 3 2 3 2 3 2 3 2 - "movq %%mm0, (%%edi) \n\t" - "movq %%mm0, 8(%%edi) \n\t" - "movq %%mm1, 16(%%edi) \n\t" - "subl $4, %%esi \n\t" - "movq %%mm1, 24(%%edi) \n\t" - "subl $32, %%edi \n\t" - "subl $2, %%ecx \n\t" - "jnz .loop2_pass0 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width_mmx) // ecx - -#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1" // clobber list -#endif - ); - } - - sptr -= (width_mmx*2 - 2); // sign fixed - dp -= (width_mmx*16 - 2); // sign fixed - for (i = width; i; i--) - { - png_byte v[8]; - int j; - sptr -= 2; - png_memcpy(v, sptr, 2); - for (j = 0; j < png_pass_inc[pass]; j++) - { - dp -= 2; - png_memcpy(dp, v, 2); - } - } - } - else if (((pass == 2) || (pass == 3)) && width) - { - int width_mmx = ((width >> 1) << 1) ; - width -= width_mmx; // 0,1 pixels => 0,2 bytes - if (width_mmx) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $2, %%esi \n\t" - "subl $14, %%edi \n\t" - - ".loop2_pass2: \n\t" - "movd (%%esi), %%mm0 \n\t" // x x x x 3 2 1 0 - "punpcklwd %%mm0, %%mm0 \n\t" // 3 2 3 2 1 0 1 0 - "movq %%mm0, %%mm1 \n\t" // 3 2 3 2 1 0 1 0 - "punpckldq %%mm0, %%mm0 \n\t" // 1 0 1 0 1 0 1 0 - "punpckhdq %%mm1, %%mm1 \n\t" // 3 2 3 2 3 2 3 2 - "movq %%mm0, (%%edi) \n\t" - "subl $4, %%esi \n\t" - "movq %%mm1, 8(%%edi) \n\t" - "subl $16, %%edi \n\t" - "subl $2, %%ecx \n\t" - "jnz .loop2_pass2 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width_mmx) // ecx - -#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1" // clobber list -#endif - ); - } - - sptr -= (width_mmx*2 - 2); // sign fixed - dp -= (width_mmx*8 - 2); // sign fixed - for (i = width; i; i--) - { - png_byte v[8]; - int j; - sptr -= 2; - png_memcpy(v, sptr, 2); - for (j = 0; j < png_pass_inc[pass]; j++) - { - dp -= 2; - png_memcpy(dp, v, 2); - } - } - } - else if (width) // pass == 4 or 5 - { - int width_mmx = ((width >> 1) << 1) ; - width -= width_mmx; // 0,1 pixels => 0,2 bytes - if (width_mmx) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $2, %%esi \n\t" - "subl $6, %%edi \n\t" - - ".loop2_pass4: \n\t" - "movd (%%esi), %%mm0 \n\t" // x x x x 3 2 1 0 - "punpcklwd %%mm0, %%mm0 \n\t" // 3 2 3 2 1 0 1 0 - "subl $4, %%esi \n\t" - "movq %%mm0, (%%edi) \n\t" - "subl $8, %%edi \n\t" - "subl $2, %%ecx \n\t" - "jnz .loop2_pass4 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width_mmx) // ecx - -#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0" // clobber list -#endif - ); - } - - sptr -= (width_mmx*2 - 2); // sign fixed - dp -= (width_mmx*4 - 2); // sign fixed - for (i = width; i; i--) - { - png_byte v[8]; - int j; - sptr -= 2; - png_memcpy(v, sptr, 2); - for (j = 0; j < png_pass_inc[pass]; j++) - { - dp -= 2; - png_memcpy(dp, v, 2); - } - } - } - } /* end of pixel_bytes == 2 */ - - //-------------------------------------------------------------- - else if (pixel_bytes == 4) - { - if (((pass == 0) || (pass == 1)) && width) - { - int width_mmx = ((width >> 1) << 1); - width -= width_mmx; // 0,1 pixels => 0,4 bytes - if (width_mmx) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $4, %%esi \n\t" - "subl $60, %%edi \n\t" - - ".loop4_pass0: \n\t" - "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0 - "movq %%mm0, %%mm1 \n\t" // 7 6 5 4 3 2 1 0 - "punpckldq %%mm0, %%mm0 \n\t" // 3 2 1 0 3 2 1 0 - "punpckhdq %%mm1, %%mm1 \n\t" // 7 6 5 4 7 6 5 4 - "movq %%mm0, (%%edi) \n\t" - "movq %%mm0, 8(%%edi) \n\t" - "movq %%mm0, 16(%%edi) \n\t" - "movq %%mm0, 24(%%edi) \n\t" - "movq %%mm1, 32(%%edi) \n\t" - "movq %%mm1, 40(%%edi) \n\t" - "movq %%mm1, 48(%%edi) \n\t" - "subl $8, %%esi \n\t" - "movq %%mm1, 56(%%edi) \n\t" - "subl $64, %%edi \n\t" - "subl $2, %%ecx \n\t" - "jnz .loop4_pass0 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width_mmx) // ecx - -#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1" // clobber list -#endif - ); - } - - sptr -= (width_mmx*4 - 4); // sign fixed - dp -= (width_mmx*32 - 4); // sign fixed - for (i = width; i; i--) - { - png_byte v[8]; - int j; - sptr -= 4; - png_memcpy(v, sptr, 4); - for (j = 0; j < png_pass_inc[pass]; j++) - { - dp -= 4; - png_memcpy(dp, v, 4); - } - } - } - else if (((pass == 2) || (pass == 3)) && width) - { - int width_mmx = ((width >> 1) << 1); - width -= width_mmx; // 0,1 pixels => 0,4 bytes - if (width_mmx) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $4, %%esi \n\t" - "subl $28, %%edi \n\t" - - ".loop4_pass2: \n\t" - "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0 - "movq %%mm0, %%mm1 \n\t" // 7 6 5 4 3 2 1 0 - "punpckldq %%mm0, %%mm0 \n\t" // 3 2 1 0 3 2 1 0 - "punpckhdq %%mm1, %%mm1 \n\t" // 7 6 5 4 7 6 5 4 - "movq %%mm0, (%%edi) \n\t" - "movq %%mm0, 8(%%edi) \n\t" - "movq %%mm1, 16(%%edi) \n\t" - "movq %%mm1, 24(%%edi) \n\t" - "subl $8, %%esi \n\t" - "subl $32, %%edi \n\t" - "subl $2, %%ecx \n\t" - "jnz .loop4_pass2 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width_mmx) // ecx - -#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1" // clobber list -#endif - ); - } - - sptr -= (width_mmx*4 - 4); // sign fixed - dp -= (width_mmx*16 - 4); // sign fixed - for (i = width; i; i--) - { - png_byte v[8]; - int j; - sptr -= 4; - png_memcpy(v, sptr, 4); - for (j = 0; j < png_pass_inc[pass]; j++) - { - dp -= 4; - png_memcpy(dp, v, 4); - } - } - } - else if (width) // pass == 4 or 5 - { - int width_mmx = ((width >> 1) << 1) ; - width -= width_mmx; // 0,1 pixels => 0,4 bytes - if (width_mmx) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $4, %%esi \n\t" - "subl $12, %%edi \n\t" - - ".loop4_pass4: \n\t" - "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0 - "movq %%mm0, %%mm1 \n\t" // 7 6 5 4 3 2 1 0 - "punpckldq %%mm0, %%mm0 \n\t" // 3 2 1 0 3 2 1 0 - "punpckhdq %%mm1, %%mm1 \n\t" // 7 6 5 4 7 6 5 4 - "movq %%mm0, (%%edi) \n\t" - "subl $8, %%esi \n\t" - "movq %%mm1, 8(%%edi) \n\t" - "subl $16, %%edi \n\t" - "subl $2, %%ecx \n\t" - "jnz .loop4_pass4 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width_mmx) // ecx - -#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0", "%mm1" // clobber list -#endif - ); - } - - sptr -= (width_mmx*4 - 4); // sign fixed - dp -= (width_mmx*8 - 4); // sign fixed - for (i = width; i; i--) - { - png_byte v[8]; - int j; - sptr -= 4; - png_memcpy(v, sptr, 4); - for (j = 0; j < png_pass_inc[pass]; j++) - { - dp -= 4; - png_memcpy(dp, v, 4); - } - } - } - } /* end of pixel_bytes == 4 */ - - //-------------------------------------------------------------- - else if (pixel_bytes == 8) - { -// GRR TEST: should work, but needs testing (special 64-bit version of rpng2?) - // GRR NOTE: no need to combine passes here! - if (((pass == 0) || (pass == 1)) && width) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - // source is 8-byte RRGGBBAA - // dest is 64-byte RRGGBBAA RRGGBBAA RRGGBBAA RRGGBBAA ... - __asm__ __volatile__ ( - "subl $56, %%edi \n\t" // start of last block - - ".loop8_pass0: \n\t" - "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0 - "movq %%mm0, (%%edi) \n\t" - "movq %%mm0, 8(%%edi) \n\t" - "movq %%mm0, 16(%%edi) \n\t" - "movq %%mm0, 24(%%edi) \n\t" - "movq %%mm0, 32(%%edi) \n\t" - "movq %%mm0, 40(%%edi) \n\t" - "movq %%mm0, 48(%%edi) \n\t" - "subl $8, %%esi \n\t" - "movq %%mm0, 56(%%edi) \n\t" - "subl $64, %%edi \n\t" - "decl %%ecx \n\t" - "jnz .loop8_pass0 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width) // ecx - -#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0" // clobber list -#endif - ); - } - else if (((pass == 2) || (pass == 3)) && width) - { - // source is 8-byte RRGGBBAA - // dest is 32-byte RRGGBBAA RRGGBBAA RRGGBBAA RRGGBBAA - // (recall that expansion is _in place_: sptr and dp - // both point at locations within same row buffer) - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $24, %%edi \n\t" // start of last block - - ".loop8_pass2: \n\t" - "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0 - "movq %%mm0, (%%edi) \n\t" - "movq %%mm0, 8(%%edi) \n\t" - "movq %%mm0, 16(%%edi) \n\t" - "subl $8, %%esi \n\t" - "movq %%mm0, 24(%%edi) \n\t" - "subl $32, %%edi \n\t" - "decl %%ecx \n\t" - "jnz .loop8_pass2 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width) // ecx - -#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0" // clobber list -#endif - ); - } - } - else if (width) // pass == 4 or 5 - { - // source is 8-byte RRGGBBAA - // dest is 16-byte RRGGBBAA RRGGBBAA - { - int dummy_value_c; // fix 'forbidden register spilled' - int dummy_value_S; - int dummy_value_D; - - __asm__ __volatile__ ( - "subl $8, %%edi \n\t" // start of last block - - ".loop8_pass4: \n\t" - "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0 - "movq %%mm0, (%%edi) \n\t" - "subl $8, %%esi \n\t" - "movq %%mm0, 8(%%edi) \n\t" - "subl $16, %%edi \n\t" - "decl %%ecx \n\t" - "jnz .loop8_pass4 \n\t" - "EMMS \n\t" // DONE - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "1" (sptr), // esi // input regs - "2" (dp), // edi - "0" (width) // ecx - -#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */ - : "%mm0" // clobber list -#endif - ); - } - } - - } /* end of pixel_bytes == 8 */ - - //-------------------------------------------------------------- - else if (pixel_bytes == 6) - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, 6); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, 6); - dp -= 6; - } - sptr -= 6; - } - } /* end of pixel_bytes == 6 */ - - //-------------------------------------------------------------- - else - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, pixel_bytes); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, pixel_bytes); - dp -= pixel_bytes; - } - sptr-= pixel_bytes; - } - } - } // end of _mmx_supported ======================================== - - else /* MMX not supported: use modified C code - takes advantage - * of inlining of png_memcpy for a constant */ - /* GRR 19991007: does it? or should pixel_bytes in each - * block be replaced with immediate value (e.g., 1)? */ - /* GRR 19991017: replaced with constants in each case */ -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - { - if (pixel_bytes == 1) - { - for (i = width; i; i--) - { - int j; - for (j = 0; j < png_pass_inc[pass]; j++) - { - *dp-- = *sptr; - } - --sptr; - } - } - else if (pixel_bytes == 3) - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, 3); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, 3); - dp -= 3; - } - sptr -= 3; - } - } - else if (pixel_bytes == 2) - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, 2); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, 2); - dp -= 2; - } - sptr -= 2; - } - } - else if (pixel_bytes == 4) - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, 4); - for (j = 0; j < png_pass_inc[pass]; j++) - { -#ifdef PNG_DEBUG - if (dp < row || dp+3 > row+png_ptr->row_buf_size) - { - printf("dp out of bounds: row=%d, dp=%d, rp=%d\n", - row, dp, row+png_ptr->row_buf_size); - printf("row_buf=%d\n",png_ptr->row_buf_size); - } -#endif - png_memcpy(dp, v, 4); - dp -= 4; - } - sptr -= 4; - } - } - else if (pixel_bytes == 6) - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, 6); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, 6); - dp -= 6; - } - sptr -= 6; - } - } - else if (pixel_bytes == 8) - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, 8); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, 8); - dp -= 8; - } - sptr -= 8; - } - } - else /* GRR: should never be reached */ - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, pixel_bytes); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, pixel_bytes); - dp -= pixel_bytes; - } - sptr -= pixel_bytes; - } - } - - } /* end if (MMX not supported) */ - break; - } - } /* end switch (row_info->pixel_depth) */ - - row_info->width = final_width; - row_info->rowbytes = ((final_width * - (png_uint_32)row_info->pixel_depth + 7) >> 3); - } - -} /* end png_do_read_interlace() */ - -#endif /* PNG_HAVE_ASSEMBLER_READ_INTERLACE */ -#endif /* PNG_READ_INTERLACING_SUPPORTED */ - - - -#if defined(PNG_HAVE_ASSEMBLER_READ_FILTER_ROW) -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) - -// These variables are utilized in the functions below. They are declared -// globally here to ensure alignment on 8-byte boundaries. - -union uAll { - long long use; - double align; -} _LBCarryMask = {0x0101010101010101LL}, - _HBClearMask = {0x7f7f7f7f7f7f7f7fLL}, - _ActiveMask, _ActiveMask2, _ActiveMaskEnd, _ShiftBpp, _ShiftRem; - -#ifdef PNG_THREAD_UNSAFE_OK -//===========================================================================// -// // -// P N G _ R E A D _ F I L T E R _ R O W _ M M X _ A V G // -// // -//===========================================================================// - -// Optimized code for PNG Average filter decoder - -static void /* PRIVATE */ -png_read_filter_row_mmx_avg(png_row_infop row_info, png_bytep row, - png_bytep prev_row) -{ - int bpp; - int dummy_value_c; // fix 'forbidden register 2 (cx) was spilled' error - int dummy_value_S; - int dummy_value_D; - - bpp = (row_info->pixel_depth + 7) >> 3; // get # bytes per pixel - _FullLength = row_info->rowbytes; // # of bytes to filter - - __asm__ __volatile__ ( - // initialize address pointers and offset -#ifdef __PIC__ - "pushl %%ebx \n\t" // save index to Global Offset Table -#endif -//pre "movl row, %%edi \n\t" // edi: Avg(x) - "xorl %%ebx, %%ebx \n\t" // ebx: x - "movl %%edi, %%edx \n\t" -//pre "movl prev_row, %%esi \n\t" // esi: Prior(x) -//pre "subl bpp, %%edx \n\t" // (bpp is preloaded into ecx) - "subl %%ecx, %%edx \n\t" // edx: Raw(x-bpp) - - "xorl %%eax,%%eax \n\t" - - // Compute the Raw value for the first bpp bytes - // Raw(x) = Avg(x) + (Prior(x)/2) - "avg_rlp: \n\t" - "movb (%%esi,%%ebx,),%%al \n\t" // load al with Prior(x) - "incl %%ebx \n\t" - "shrb %%al \n\t" // divide by 2 - "addb -1(%%edi,%%ebx,),%%al \n\t" // add Avg(x); -1 to offset inc ebx -//pre "cmpl bpp, %%ebx \n\t" // (bpp is preloaded into ecx) - "cmpl %%ecx, %%ebx \n\t" - "movb %%al,-1(%%edi,%%ebx,) \n\t" // write Raw(x); -1 to offset inc ebx - "jb avg_rlp \n\t" // mov does not affect flags - - // get # of bytes to alignment - "movl %%edi, _dif \n\t" // take start of row - "addl %%ebx, _dif \n\t" // add bpp - "addl $0xf, _dif \n\t" // add 7+8 to incr past alignment bdry - "andl $0xfffffff8, _dif \n\t" // mask to alignment boundary - "subl %%edi, _dif \n\t" // subtract from start => value ebx at - "jz avg_go \n\t" // alignment - - // fix alignment - // Compute the Raw value for the bytes up to the alignment boundary - // Raw(x) = Avg(x) + ((Raw(x-bpp) + Prior(x))/2) - "xorl %%ecx, %%ecx \n\t" - - "avg_lp1: \n\t" - "xorl %%eax, %%eax \n\t" - "movb (%%esi,%%ebx,), %%cl \n\t" // load cl with Prior(x) - "movb (%%edx,%%ebx,), %%al \n\t" // load al with Raw(x-bpp) - "addw %%cx, %%ax \n\t" - "incl %%ebx \n\t" - "shrw %%ax \n\t" // divide by 2 - "addb -1(%%edi,%%ebx,), %%al \n\t" // add Avg(x); -1 to offset inc ebx - "cmpl _dif, %%ebx \n\t" // check if at alignment boundary - "movb %%al, -1(%%edi,%%ebx,) \n\t" // write Raw(x); -1 to offset inc ebx - "jb avg_lp1 \n\t" // repeat until at alignment boundary - - "avg_go: \n\t" - "movl _FullLength, %%eax \n\t" - "movl %%eax, %%ecx \n\t" - "subl %%ebx, %%eax \n\t" // subtract alignment fix - "andl $0x00000007, %%eax \n\t" // calc bytes over mult of 8 - "subl %%eax, %%ecx \n\t" // drop over bytes from original length - "movl %%ecx, _MMXLength \n\t" -#ifdef __PIC__ - "popl %%ebx \n\t" // restore index to Global Offset Table -#endif - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "0" (bpp), // ecx // input regs - "1" (prev_row), // esi - "2" (row) // edi - - : "%eax", "%edx" // clobber list -#ifndef __PIC__ - , "%ebx" -#endif - // GRR: INCLUDE "memory" as clobbered? (_dif, _MMXLength) - // (seems to work fine without...) - ); - - // now do the math for the rest of the row - switch (bpp) - { - case 3: - { - _ActiveMask.use = 0x0000000000ffffffLL; - _ShiftBpp.use = 24; // == 3 * 8 - _ShiftRem.use = 40; // == 64 - 24 - - __asm__ __volatile__ ( - // re-init address pointers and offset - "movq _ActiveMask, %%mm7 \n\t" - "movl _dif, %%ecx \n\t" // ecx: x = offset to - "movq _LBCarryMask, %%mm5 \n\t" // alignment boundary -// preload "movl row, %%edi \n\t" // edi: Avg(x) - "movq _HBClearMask, %%mm4 \n\t" -// preload "movl prev_row, %%esi \n\t" // esi: Prior(x) - - // prime the pump: load the first Raw(x-bpp) data set - "movq -8(%%edi,%%ecx,), %%mm2 \n\t" // load previous aligned 8 bytes - // (correct pos. in loop below) - "avg_3lp: \n\t" - "movq (%%edi,%%ecx,), %%mm0 \n\t" // load mm0 with Avg(x) - "movq %%mm5, %%mm3 \n\t" - "psrlq _ShiftRem, %%mm2 \n\t" // correct position Raw(x-bpp) - // data - "movq (%%esi,%%ecx,), %%mm1 \n\t" // load mm1 with Prior(x) - "movq %%mm7, %%mm6 \n\t" - "pand %%mm1, %%mm3 \n\t" // get lsb for each prev_row byte - "psrlq $1, %%mm1 \n\t" // divide prev_row bytes by 2 - "pand %%mm4, %%mm1 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm1, %%mm0 \n\t" // add (Prev_row/2) to Avg for - // each byte - // add 1st active group (Raw(x-bpp)/2) to average with LBCarry - "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting - // LBCarrys - "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte - // where both - // lsb's were == 1 (only valid for active group) - "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2 - "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2) - // for each byte - "pand %%mm6, %%mm2 \n\t" // leave only Active Group 1 - // bytes to add to Avg - "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to - // Avg for each Active - // byte - // add 2nd active group (Raw(x-bpp)/2) to average with _LBCarry - "psllq _ShiftBpp, %%mm6 \n\t" // shift the mm6 mask to cover - // bytes 3-5 - "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2 - "psllq _ShiftBpp, %%mm2 \n\t" // shift data to pos. correctly - "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting - // LBCarrys - "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte - // where both - // lsb's were == 1 (only valid for active group) - "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2 - "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2) - // for each byte - "pand %%mm6, %%mm2 \n\t" // leave only Active Group 2 - // bytes to add to Avg - "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to - // Avg for each Active - // byte - - // add 3rd active group (Raw(x-bpp)/2) to average with _LBCarry - "psllq _ShiftBpp, %%mm6 \n\t" // shift mm6 mask to cover last - // two - // bytes - "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2 - "psllq _ShiftBpp, %%mm2 \n\t" // shift data to pos. correctly - // Data only needs to be shifted once here to - // get the correct x-bpp offset. - "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting - // LBCarrys - "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte - // where both - // lsb's were == 1 (only valid for active group) - "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2 - "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2) - // for each byte - "pand %%mm6, %%mm2 \n\t" // leave only Active Group 2 - // bytes to add to Avg - "addl $8, %%ecx \n\t" - "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to - // Avg for each Active - // byte - // now ready to write back to memory - "movq %%mm0, -8(%%edi,%%ecx,) \n\t" - // move updated Raw(x) to use as Raw(x-bpp) for next loop - "cmpl _MMXLength, %%ecx \n\t" - "movq %%mm0, %%mm2 \n\t" // mov updated Raw(x) to mm2 - "jb avg_3lp \n\t" - - : "=S" (dummy_value_S), // output regs (dummy) - "=D" (dummy_value_D) - - : "0" (prev_row), // esi // input regs - "1" (row) // edi - - : "%ecx" // clobber list -#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm2", "%mm3" - , "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - } - break; // end 3 bpp - - case 6: - case 4: - //case 7: // who wrote this? PNG doesn't support 5 or 7 bytes/pixel - //case 5: // GRR BOGUS - { - _ActiveMask.use = 0xffffffffffffffffLL; // use shift below to clear - // appropriate inactive bytes - _ShiftBpp.use = bpp << 3; - _ShiftRem.use = 64 - _ShiftBpp.use; - - __asm__ __volatile__ ( - "movq _HBClearMask, %%mm4 \n\t" - - // re-init address pointers and offset - "movl _dif, %%ecx \n\t" // ecx: x = offset to - // alignment boundary - - // load _ActiveMask and clear all bytes except for 1st active group - "movq _ActiveMask, %%mm7 \n\t" -// preload "movl row, %%edi \n\t" // edi: Avg(x) - "psrlq _ShiftRem, %%mm7 \n\t" -// preload "movl prev_row, %%esi \n\t" // esi: Prior(x) - "movq %%mm7, %%mm6 \n\t" - "movq _LBCarryMask, %%mm5 \n\t" - "psllq _ShiftBpp, %%mm6 \n\t" // create mask for 2nd active - // group - - // prime the pump: load the first Raw(x-bpp) data set - "movq -8(%%edi,%%ecx,), %%mm2 \n\t" // load previous aligned 8 bytes - // (we correct pos. in loop below) - "avg_4lp: \n\t" - "movq (%%edi,%%ecx,), %%mm0 \n\t" - "psrlq _ShiftRem, %%mm2 \n\t" // shift data to pos. correctly - "movq (%%esi,%%ecx,), %%mm1 \n\t" - // add (Prev_row/2) to average - "movq %%mm5, %%mm3 \n\t" - "pand %%mm1, %%mm3 \n\t" // get lsb for each prev_row byte - "psrlq $1, %%mm1 \n\t" // divide prev_row bytes by 2 - "pand %%mm4, %%mm1 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm1, %%mm0 \n\t" // add (Prev_row/2) to Avg for - // each byte - // add 1st active group (Raw(x-bpp)/2) to average with _LBCarry - "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting - // LBCarrys - "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte - // where both - // lsb's were == 1 (only valid for active group) - "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2 - "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2) - // for each byte - "pand %%mm7, %%mm2 \n\t" // leave only Active Group 1 - // bytes to add to Avg - "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to Avg - // for each Active - // byte - // add 2nd active group (Raw(x-bpp)/2) to average with _LBCarry - "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2 - "psllq _ShiftBpp, %%mm2 \n\t" // shift data to pos. correctly - "addl $8, %%ecx \n\t" - "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting - // LBCarrys - "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte - // where both - // lsb's were == 1 (only valid for active group) - "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2 - "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2) - // for each byte - "pand %%mm6, %%mm2 \n\t" // leave only Active Group 2 - // bytes to add to Avg - "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to - // Avg for each Active - // byte - "cmpl _MMXLength, %%ecx \n\t" - // now ready to write back to memory - "movq %%mm0, -8(%%edi,%%ecx,) \n\t" - // prep Raw(x-bpp) for next loop - "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2 - "jb avg_4lp \n\t" - - : "=S" (dummy_value_S), // output regs (dummy) - "=D" (dummy_value_D) - - : "0" (prev_row), // esi // input regs - "1" (row) // edi - - : "%ecx" // clobber list -#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm2", "%mm3" - , "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - } - break; // end 4,6 bpp - - case 2: - { - _ActiveMask.use = 0x000000000000ffffLL; - _ShiftBpp.use = 16; // == 2 * 8 - _ShiftRem.use = 48; // == 64 - 16 - - __asm__ __volatile__ ( - // load _ActiveMask - "movq _ActiveMask, %%mm7 \n\t" - // re-init address pointers and offset - "movl _dif, %%ecx \n\t" // ecx: x = offset to alignment - // boundary - "movq _LBCarryMask, %%mm5 \n\t" -// preload "movl row, %%edi \n\t" // edi: Avg(x) - "movq _HBClearMask, %%mm4 \n\t" -// preload "movl prev_row, %%esi \n\t" // esi: Prior(x) - - // prime the pump: load the first Raw(x-bpp) data set - "movq -8(%%edi,%%ecx,), %%mm2 \n\t" // load previous aligned 8 bytes - // (we correct pos. in loop below) - "avg_2lp: \n\t" - "movq (%%edi,%%ecx,), %%mm0 \n\t" - "psrlq _ShiftRem, %%mm2 \n\t" // shift data to pos. correctly - "movq (%%esi,%%ecx,), %%mm1 \n\t" // (GRR BUGFIX: was psllq) - // add (Prev_row/2) to average - "movq %%mm5, %%mm3 \n\t" - "pand %%mm1, %%mm3 \n\t" // get lsb for each prev_row byte - "psrlq $1, %%mm1 \n\t" // divide prev_row bytes by 2 - "pand %%mm4, %%mm1 \n\t" // clear invalid bit 7 of each - // byte - "movq %%mm7, %%mm6 \n\t" - "paddb %%mm1, %%mm0 \n\t" // add (Prev_row/2) to Avg for - // each byte - - // add 1st active group (Raw(x-bpp)/2) to average with _LBCarry - "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting - // LBCarrys - "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte - // where both - // lsb's were == 1 (only valid - // for active group) - "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2 - "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2) - // for each byte - "pand %%mm6, %%mm2 \n\t" // leave only Active Group 1 - // bytes to add to Avg - "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to Avg - // for each Active byte - - // add 2nd active group (Raw(x-bpp)/2) to average with _LBCarry - "psllq _ShiftBpp, %%mm6 \n\t" // shift the mm6 mask to cover - // bytes 2 & 3 - "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2 - "psllq _ShiftBpp, %%mm2 \n\t" // shift data to pos. correctly - "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting - // LBCarrys - "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte - // where both - // lsb's were == 1 (only valid - // for active group) - "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2 - "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2) - // for each byte - "pand %%mm6, %%mm2 \n\t" // leave only Active Group 2 - // bytes to add to Avg - "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to - // Avg for each Active byte - - // add 3rd active group (Raw(x-bpp)/2) to average with _LBCarry - "psllq _ShiftBpp, %%mm6 \n\t" // shift the mm6 mask to cover - // bytes 4 & 5 - "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2 - "psllq _ShiftBpp, %%mm2 \n\t" // shift data to pos. correctly - "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting - // LBCarrys - "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte - // where both lsb's were == 1 - // (only valid for active group) - "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2 - "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2) - // for each byte - "pand %%mm6, %%mm2 \n\t" // leave only Active Group 2 - // bytes to add to Avg - "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to - // Avg for each Active byte - - // add 4th active group (Raw(x-bpp)/2) to average with _LBCarry - "psllq _ShiftBpp, %%mm6 \n\t" // shift the mm6 mask to cover - // bytes 6 & 7 - "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2 - "psllq _ShiftBpp, %%mm2 \n\t" // shift data to pos. correctly - "addl $8, %%ecx \n\t" - "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting - // LBCarrys - "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte - // where both - // lsb's were == 1 (only valid - // for active group) - "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2 - "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2) - // for each byte - "pand %%mm6, %%mm2 \n\t" // leave only Active Group 2 - // bytes to add to Avg - "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to - // Avg for each Active byte - - "cmpl _MMXLength, %%ecx \n\t" - // now ready to write back to memory - "movq %%mm0, -8(%%edi,%%ecx,) \n\t" - // prep Raw(x-bpp) for next loop - "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2 - "jb avg_2lp \n\t" - - : "=S" (dummy_value_S), // output regs (dummy) - "=D" (dummy_value_D) - - : "0" (prev_row), // esi // input regs - "1" (row) // edi - - : "%ecx" // clobber list -#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm2", "%mm3" - , "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - } - break; // end 2 bpp - - case 1: - { - __asm__ __volatile__ ( - // re-init address pointers and offset -#ifdef __PIC__ - "pushl %%ebx \n\t" // save Global Offset Table index -#endif - "movl _dif, %%ebx \n\t" // ebx: x = offset to alignment - // boundary -// preload "movl row, %%edi \n\t" // edi: Avg(x) - "cmpl _FullLength, %%ebx \n\t" // test if offset at end of array - "jnb avg_1end \n\t" - // do Paeth decode for remaining bytes -// preload "movl prev_row, %%esi \n\t" // esi: Prior(x) - "movl %%edi, %%edx \n\t" -// preload "subl bpp, %%edx \n\t" // (bpp is preloaded into ecx) - "subl %%ecx, %%edx \n\t" // edx: Raw(x-bpp) - "xorl %%ecx, %%ecx \n\t" // zero ecx before using cl & cx - // in loop below - "avg_1lp: \n\t" - // Raw(x) = Avg(x) + ((Raw(x-bpp) + Prior(x))/2) - "xorl %%eax, %%eax \n\t" - "movb (%%esi,%%ebx,), %%cl \n\t" // load cl with Prior(x) - "movb (%%edx,%%ebx,), %%al \n\t" // load al with Raw(x-bpp) - "addw %%cx, %%ax \n\t" - "incl %%ebx \n\t" - "shrw %%ax \n\t" // divide by 2 - "addb -1(%%edi,%%ebx,), %%al \n\t" // add Avg(x); -1 to offset - // inc ebx - "cmpl _FullLength, %%ebx \n\t" // check if at end of array - "movb %%al, -1(%%edi,%%ebx,) \n\t" // write back Raw(x); - // mov does not affect flags; -1 to offset inc ebx - "jb avg_1lp \n\t" - - "avg_1end: \n\t" -#ifdef __PIC__ - "popl %%ebx \n\t" // Global Offset Table index -#endif - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "0" (bpp), // ecx // input regs - "1" (prev_row), // esi - "2" (row) // edi - - : "%eax", "%edx" // clobber list -#ifndef __PIC__ - , "%ebx" -#endif - ); - } - return; // end 1 bpp - - case 8: - { - __asm__ __volatile__ ( - // re-init address pointers and offset - "movl _dif, %%ecx \n\t" // ecx: x == offset to alignment - "movq _LBCarryMask, %%mm5 \n\t" // boundary -// preload "movl row, %%edi \n\t" // edi: Avg(x) - "movq _HBClearMask, %%mm4 \n\t" -// preload "movl prev_row, %%esi \n\t" // esi: Prior(x) - - // prime the pump: load the first Raw(x-bpp) data set - "movq -8(%%edi,%%ecx,), %%mm2 \n\t" // load previous aligned 8 bytes - // (NO NEED to correct pos. in loop below) - - "avg_8lp: \n\t" - "movq (%%edi,%%ecx,), %%mm0 \n\t" - "movq %%mm5, %%mm3 \n\t" - "movq (%%esi,%%ecx,), %%mm1 \n\t" - "addl $8, %%ecx \n\t" - "pand %%mm1, %%mm3 \n\t" // get lsb for each prev_row byte - "psrlq $1, %%mm1 \n\t" // divide prev_row bytes by 2 - "pand %%mm2, %%mm3 \n\t" // get LBCarrys for each byte - // where both lsb's were == 1 - "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2 - "pand %%mm4, %%mm1 \n\t" // clear invalid bit 7, each byte - "paddb %%mm3, %%mm0 \n\t" // add LBCarrys to Avg, each byte - "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7, each byte - "paddb %%mm1, %%mm0 \n\t" // add (Prev_row/2) to Avg, each - "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) to Avg for each - "cmpl _MMXLength, %%ecx \n\t" - "movq %%mm0, -8(%%edi,%%ecx,) \n\t" - "movq %%mm0, %%mm2 \n\t" // reuse as Raw(x-bpp) - "jb avg_8lp \n\t" - - : "=S" (dummy_value_S), // output regs (dummy) - "=D" (dummy_value_D) - - : "0" (prev_row), // esi // input regs - "1" (row) // edi - - : "%ecx" // clobber list -#if 0 /* %mm0, ..., %mm5 not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm2" - , "%mm3", "%mm4", "%mm5" -#endif - ); - } - break; // end 8 bpp - - default: // bpp greater than 8 (!= 1,2,3,4,[5],6,[7],8) - { - -#ifdef PNG_DEBUG - // GRR: PRINT ERROR HERE: SHOULD NEVER BE REACHED - png_debug(1, - "Internal logic error in pnggccrd (png_read_filter_row_mmx_avg())\n"); -#endif - -#if 0 - __asm__ __volatile__ ( - "movq _LBCarryMask, %%mm5 \n\t" - // re-init address pointers and offset - "movl _dif, %%ebx \n\t" // ebx: x = offset to - // alignment boundary - "movl row, %%edi \n\t" // edi: Avg(x) - "movq _HBClearMask, %%mm4 \n\t" - "movl %%edi, %%edx \n\t" - "movl prev_row, %%esi \n\t" // esi: Prior(x) - "subl bpp, %%edx \n\t" // edx: Raw(x-bpp) - "avg_Alp: \n\t" - "movq (%%edi,%%ebx,), %%mm0 \n\t" - "movq %%mm5, %%mm3 \n\t" - "movq (%%esi,%%ebx,), %%mm1 \n\t" - "pand %%mm1, %%mm3 \n\t" // get lsb for each prev_row byte - "movq (%%edx,%%ebx,), %%mm2 \n\t" - "psrlq $1, %%mm1 \n\t" // divide prev_row bytes by 2 - "pand %%mm2, %%mm3 \n\t" // get LBCarrys for each byte - // where both lsb's were == 1 - "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2 - "pand %%mm4, %%mm1 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm3, %%mm0 \n\t" // add LBCarrys to Avg for each - // byte - "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each - // byte - "paddb %%mm1, %%mm0 \n\t" // add (Prev_row/2) to Avg for - // each byte - "addl $8, %%ebx \n\t" - "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) to Avg for each - // byte - "cmpl _MMXLength, %%ebx \n\t" - "movq %%mm0, -8(%%edi,%%ebx,) \n\t" - "jb avg_Alp \n\t" - - : // FIXASM: output regs/vars go here, e.g.: "=m" (memory_var) - - : // FIXASM: input regs, e.g.: "c" (count), "S" (src), "D" (dest) - - : "%ebx", "%edx", "%edi", "%esi" // CHECKASM: clobber list - ); -#endif /* 0 - NEVER REACHED */ - } - break; - - } // end switch (bpp) - - __asm__ __volatile__ ( - // MMX acceleration complete; now do clean-up - // check if any remaining bytes left to decode -#ifdef __PIC__ - "pushl %%ebx \n\t" // save index to Global Offset Table -#endif - "movl _MMXLength, %%ebx \n\t" // ebx: x == offset bytes after MMX -//pre "movl row, %%edi \n\t" // edi: Avg(x) - "cmpl _FullLength, %%ebx \n\t" // test if offset at end of array - "jnb avg_end \n\t" - - // do Avg decode for remaining bytes -//pre "movl prev_row, %%esi \n\t" // esi: Prior(x) - "movl %%edi, %%edx \n\t" -//pre "subl bpp, %%edx \n\t" // (bpp is preloaded into ecx) - "subl %%ecx, %%edx \n\t" // edx: Raw(x-bpp) - "xorl %%ecx, %%ecx \n\t" // zero ecx before using cl & cx below - - "avg_lp2: \n\t" - // Raw(x) = Avg(x) + ((Raw(x-bpp) + Prior(x))/2) - "xorl %%eax, %%eax \n\t" - "movb (%%esi,%%ebx,), %%cl \n\t" // load cl with Prior(x) - "movb (%%edx,%%ebx,), %%al \n\t" // load al with Raw(x-bpp) - "addw %%cx, %%ax \n\t" - "incl %%ebx \n\t" - "shrw %%ax \n\t" // divide by 2 - "addb -1(%%edi,%%ebx,), %%al \n\t" // add Avg(x); -1 to offset inc ebx - "cmpl _FullLength, %%ebx \n\t" // check if at end of array - "movb %%al, -1(%%edi,%%ebx,) \n\t" // write back Raw(x) [mov does not - "jb avg_lp2 \n\t" // affect flags; -1 to offset inc ebx] - - "avg_end: \n\t" - "EMMS \n\t" // end MMX; prep for poss. FP instrs. -#ifdef __PIC__ - "popl %%ebx \n\t" // restore index to Global Offset Table -#endif - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "0" (bpp), // ecx // input regs - "1" (prev_row), // esi - "2" (row) // edi - - : "%eax", "%edx" // clobber list -#ifndef __PIC__ - , "%ebx" -#endif - ); - -} /* end png_read_filter_row_mmx_avg() */ -#endif - - - -#ifdef PNG_THREAD_UNSAFE_OK -//===========================================================================// -// // -// P N G _ R E A D _ F I L T E R _ R O W _ M M X _ P A E T H // -// // -//===========================================================================// - -// Optimized code for PNG Paeth filter decoder - -static void /* PRIVATE */ -png_read_filter_row_mmx_paeth(png_row_infop row_info, png_bytep row, - png_bytep prev_row) -{ - int bpp; - int dummy_value_c; // fix 'forbidden register 2 (cx) was spilled' error - int dummy_value_S; - int dummy_value_D; - - bpp = (row_info->pixel_depth + 7) >> 3; // Get # bytes per pixel - _FullLength = row_info->rowbytes; // # of bytes to filter - - __asm__ __volatile__ ( -#ifdef __PIC__ - "pushl %%ebx \n\t" // save index to Global Offset Table -#endif - "xorl %%ebx, %%ebx \n\t" // ebx: x offset -//pre "movl row, %%edi \n\t" - "xorl %%edx, %%edx \n\t" // edx: x-bpp offset -//pre "movl prev_row, %%esi \n\t" - "xorl %%eax, %%eax \n\t" - - // Compute the Raw value for the first bpp bytes - // Note: the formula works out to be always - // Paeth(x) = Raw(x) + Prior(x) where x < bpp - "paeth_rlp: \n\t" - "movb (%%edi,%%ebx,), %%al \n\t" - "addb (%%esi,%%ebx,), %%al \n\t" - "incl %%ebx \n\t" -//pre "cmpl bpp, %%ebx \n\t" (bpp is preloaded into ecx) - "cmpl %%ecx, %%ebx \n\t" - "movb %%al, -1(%%edi,%%ebx,) \n\t" - "jb paeth_rlp \n\t" - // get # of bytes to alignment - "movl %%edi, _dif \n\t" // take start of row - "addl %%ebx, _dif \n\t" // add bpp - "xorl %%ecx, %%ecx \n\t" - "addl $0xf, _dif \n\t" // add 7 + 8 to incr past alignment - // boundary - "andl $0xfffffff8, _dif \n\t" // mask to alignment boundary - "subl %%edi, _dif \n\t" // subtract from start ==> value ebx - // at alignment - "jz paeth_go \n\t" - // fix alignment - - "paeth_lp1: \n\t" - "xorl %%eax, %%eax \n\t" - // pav = p - a = (a + b - c) - a = b - c - "movb (%%esi,%%ebx,), %%al \n\t" // load Prior(x) into al - "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl - "subl %%ecx, %%eax \n\t" // subtract Prior(x-bpp) - "movl %%eax, _patemp \n\t" // Save pav for later use - "xorl %%eax, %%eax \n\t" - // pbv = p - b = (a + b - c) - b = a - c - "movb (%%edi,%%edx,), %%al \n\t" // load Raw(x-bpp) into al - "subl %%ecx, %%eax \n\t" // subtract Prior(x-bpp) - "movl %%eax, %%ecx \n\t" - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - "addl _patemp, %%eax \n\t" // pcv = pav + pbv - // pc = abs(pcv) - "testl $0x80000000, %%eax \n\t" - "jz paeth_pca \n\t" - "negl %%eax \n\t" // reverse sign of neg values - - "paeth_pca: \n\t" - "movl %%eax, _pctemp \n\t" // save pc for later use - // pb = abs(pbv) - "testl $0x80000000, %%ecx \n\t" - "jz paeth_pba \n\t" - "negl %%ecx \n\t" // reverse sign of neg values - - "paeth_pba: \n\t" - "movl %%ecx, _pbtemp \n\t" // save pb for later use - // pa = abs(pav) - "movl _patemp, %%eax \n\t" - "testl $0x80000000, %%eax \n\t" - "jz paeth_paa \n\t" - "negl %%eax \n\t" // reverse sign of neg values - - "paeth_paa: \n\t" - "movl %%eax, _patemp \n\t" // save pa for later use - // test if pa <= pb - "cmpl %%ecx, %%eax \n\t" - "jna paeth_abb \n\t" - // pa > pb; now test if pb <= pc - "cmpl _pctemp, %%ecx \n\t" - "jna paeth_bbc \n\t" - // pb > pc; Raw(x) = Paeth(x) + Prior(x-bpp) - "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl - "jmp paeth_paeth \n\t" - - "paeth_bbc: \n\t" - // pb <= pc; Raw(x) = Paeth(x) + Prior(x) - "movb (%%esi,%%ebx,), %%cl \n\t" // load Prior(x) into cl - "jmp paeth_paeth \n\t" - - "paeth_abb: \n\t" - // pa <= pb; now test if pa <= pc - "cmpl _pctemp, %%eax \n\t" - "jna paeth_abc \n\t" - // pa > pc; Raw(x) = Paeth(x) + Prior(x-bpp) - "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl - "jmp paeth_paeth \n\t" - - "paeth_abc: \n\t" - // pa <= pc; Raw(x) = Paeth(x) + Raw(x-bpp) - "movb (%%edi,%%edx,), %%cl \n\t" // load Raw(x-bpp) into cl - - "paeth_paeth: \n\t" - "incl %%ebx \n\t" - "incl %%edx \n\t" - // Raw(x) = (Paeth(x) + Paeth_Predictor( a, b, c )) mod 256 - "addb %%cl, -1(%%edi,%%ebx,) \n\t" - "cmpl _dif, %%ebx \n\t" - "jb paeth_lp1 \n\t" - - "paeth_go: \n\t" - "movl _FullLength, %%ecx \n\t" - "movl %%ecx, %%eax \n\t" - "subl %%ebx, %%eax \n\t" // subtract alignment fix - "andl $0x00000007, %%eax \n\t" // calc bytes over mult of 8 - "subl %%eax, %%ecx \n\t" // drop over bytes from original length - "movl %%ecx, _MMXLength \n\t" -#ifdef __PIC__ - "popl %%ebx \n\t" // restore index to Global Offset Table -#endif - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "0" (bpp), // ecx // input regs - "1" (prev_row), // esi - "2" (row) // edi - - : "%eax", "%edx" // clobber list -#ifndef __PIC__ - , "%ebx" -#endif - ); - - // now do the math for the rest of the row - switch (bpp) - { - case 3: - { - _ActiveMask.use = 0x0000000000ffffffLL; - _ActiveMaskEnd.use = 0xffff000000000000LL; - _ShiftBpp.use = 24; // == bpp(3) * 8 - _ShiftRem.use = 40; // == 64 - 24 - - __asm__ __volatile__ ( - "movl _dif, %%ecx \n\t" -// preload "movl row, %%edi \n\t" -// preload "movl prev_row, %%esi \n\t" - "pxor %%mm0, %%mm0 \n\t" - // prime the pump: load the first Raw(x-bpp) data set - "movq -8(%%edi,%%ecx,), %%mm1 \n\t" - "paeth_3lp: \n\t" - "psrlq _ShiftRem, %%mm1 \n\t" // shift last 3 bytes to 1st - // 3 bytes - "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x) - "punpcklbw %%mm0, %%mm1 \n\t" // unpack High bytes of a - "movq -8(%%esi,%%ecx,), %%mm3 \n\t" // prep c=Prior(x-bpp) bytes - "punpcklbw %%mm0, %%mm2 \n\t" // unpack High bytes of b - "psrlq _ShiftRem, %%mm3 \n\t" // shift last 3 bytes to 1st - // 3 bytes - // pav = p - a = (a + b - c) - a = b - c - "movq %%mm2, %%mm4 \n\t" - "punpcklbw %%mm0, %%mm3 \n\t" // unpack High bytes of c - // pbv = p - b = (a + b - c) - b = a - c - "movq %%mm1, %%mm5 \n\t" - "psubw %%mm3, %%mm4 \n\t" - "pxor %%mm7, %%mm7 \n\t" - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - "movq %%mm4, %%mm6 \n\t" - "psubw %%mm3, %%mm5 \n\t" - - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0 - "paddw %%mm5, %%mm6 \n\t" - "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0 - "psubw %%mm0, %%mm4 \n\t" - "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0 - "psubw %%mm0, %%mm4 \n\t" - "psubw %%mm7, %%mm5 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0 - "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "psubw %%mm7, %%mm5 \n\t" - "psubw %%mm0, %%mm6 \n\t" - // test pa <= pb - "movq %%mm4, %%mm7 \n\t" - "psubw %%mm0, %%mm6 \n\t" - "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb? - "movq %%mm7, %%mm0 \n\t" - // use mm7 mask to merge pa & pb - "pand %%mm7, %%mm5 \n\t" - // use mm0 mask copy to merge a & b - "pand %%mm0, %%mm2 \n\t" - "pandn %%mm4, %%mm7 \n\t" - "pandn %%mm1, %%mm0 \n\t" - "paddw %%mm5, %%mm7 \n\t" - "paddw %%mm2, %%mm0 \n\t" - // test ((pa <= pb)? pa:pb) <= pc - "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc? - "pxor %%mm1, %%mm1 \n\t" - "pand %%mm7, %%mm3 \n\t" - "pandn %%mm0, %%mm7 \n\t" - "paddw %%mm3, %%mm7 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "packuswb %%mm1, %%mm7 \n\t" - "movq (%%esi,%%ecx,), %%mm3 \n\t" // load c=Prior(x-bpp) - "pand _ActiveMask, %%mm7 \n\t" - "movq %%mm3, %%mm2 \n\t" // load b=Prior(x) step 1 - "paddb (%%edi,%%ecx,), %%mm7 \n\t" // add Paeth predictor with Raw(x) - "punpcklbw %%mm0, %%mm3 \n\t" // unpack High bytes of c - "movq %%mm7, (%%edi,%%ecx,) \n\t" // write back updated value - "movq %%mm7, %%mm1 \n\t" // now mm1 will be used as - // Raw(x-bpp) - // now do Paeth for 2nd set of bytes (3-5) - "psrlq _ShiftBpp, %%mm2 \n\t" // load b=Prior(x) step 2 - "punpcklbw %%mm0, %%mm1 \n\t" // unpack High bytes of a - "pxor %%mm7, %%mm7 \n\t" - "punpcklbw %%mm0, %%mm2 \n\t" // unpack High bytes of b - // pbv = p - b = (a + b - c) - b = a - c - "movq %%mm1, %%mm5 \n\t" - // pav = p - a = (a + b - c) - a = b - c - "movq %%mm2, %%mm4 \n\t" - "psubw %%mm3, %%mm5 \n\t" - "psubw %%mm3, %%mm4 \n\t" - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = - // pav + pbv = pbv + pav - "movq %%mm5, %%mm6 \n\t" - "paddw %%mm4, %%mm6 \n\t" - - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - "pcmpgtw %%mm5, %%mm0 \n\t" // create mask pbv bytes < 0 - "pcmpgtw %%mm4, %%mm7 \n\t" // create mask pav bytes < 0 - "pand %%mm5, %%mm0 \n\t" // only pbv bytes < 0 in mm0 - "pand %%mm4, %%mm7 \n\t" // only pav bytes < 0 in mm7 - "psubw %%mm0, %%mm5 \n\t" - "psubw %%mm7, %%mm4 \n\t" - "psubw %%mm0, %%mm5 \n\t" - "psubw %%mm7, %%mm4 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0 - "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "psubw %%mm0, %%mm6 \n\t" - // test pa <= pb - "movq %%mm4, %%mm7 \n\t" - "psubw %%mm0, %%mm6 \n\t" - "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb? - "movq %%mm7, %%mm0 \n\t" - // use mm7 mask to merge pa & pb - "pand %%mm7, %%mm5 \n\t" - // use mm0 mask copy to merge a & b - "pand %%mm0, %%mm2 \n\t" - "pandn %%mm4, %%mm7 \n\t" - "pandn %%mm1, %%mm0 \n\t" - "paddw %%mm5, %%mm7 \n\t" - "paddw %%mm2, %%mm0 \n\t" - // test ((pa <= pb)? pa:pb) <= pc - "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc? - "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x) - "pand %%mm7, %%mm3 \n\t" - "pandn %%mm0, %%mm7 \n\t" - "pxor %%mm1, %%mm1 \n\t" - "paddw %%mm3, %%mm7 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "packuswb %%mm1, %%mm7 \n\t" - "movq %%mm2, %%mm3 \n\t" // load c=Prior(x-bpp) step 1 - "pand _ActiveMask, %%mm7 \n\t" - "punpckhbw %%mm0, %%mm2 \n\t" // unpack High bytes of b - "psllq _ShiftBpp, %%mm7 \n\t" // shift bytes to 2nd group of - // 3 bytes - // pav = p - a = (a + b - c) - a = b - c - "movq %%mm2, %%mm4 \n\t" - "paddb (%%edi,%%ecx,), %%mm7 \n\t" // add Paeth predictor with Raw(x) - "psllq _ShiftBpp, %%mm3 \n\t" // load c=Prior(x-bpp) step 2 - "movq %%mm7, (%%edi,%%ecx,) \n\t" // write back updated value - "movq %%mm7, %%mm1 \n\t" - "punpckhbw %%mm0, %%mm3 \n\t" // unpack High bytes of c - "psllq _ShiftBpp, %%mm1 \n\t" // shift bytes - // now mm1 will be used as Raw(x-bpp) - // now do Paeth for 3rd, and final, set of bytes (6-7) - "pxor %%mm7, %%mm7 \n\t" - "punpckhbw %%mm0, %%mm1 \n\t" // unpack High bytes of a - "psubw %%mm3, %%mm4 \n\t" - // pbv = p - b = (a + b - c) - b = a - c - "movq %%mm1, %%mm5 \n\t" - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - "movq %%mm4, %%mm6 \n\t" - "psubw %%mm3, %%mm5 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "paddw %%mm5, %%mm6 \n\t" - - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0 - "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0 - "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0 - "psubw %%mm0, %%mm4 \n\t" - "psubw %%mm7, %%mm5 \n\t" - "psubw %%mm0, %%mm4 \n\t" - "psubw %%mm7, %%mm5 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0 - "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "psubw %%mm0, %%mm6 \n\t" - // test pa <= pb - "movq %%mm4, %%mm7 \n\t" - "psubw %%mm0, %%mm6 \n\t" - "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb? - "movq %%mm7, %%mm0 \n\t" - // use mm0 mask copy to merge a & b - "pand %%mm0, %%mm2 \n\t" - // use mm7 mask to merge pa & pb - "pand %%mm7, %%mm5 \n\t" - "pandn %%mm1, %%mm0 \n\t" - "pandn %%mm4, %%mm7 \n\t" - "paddw %%mm2, %%mm0 \n\t" - "paddw %%mm5, %%mm7 \n\t" - // test ((pa <= pb)? pa:pb) <= pc - "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc? - "pand %%mm7, %%mm3 \n\t" - "pandn %%mm0, %%mm7 \n\t" - "paddw %%mm3, %%mm7 \n\t" - "pxor %%mm1, %%mm1 \n\t" - "packuswb %%mm7, %%mm1 \n\t" - // step ecx to next set of 8 bytes and repeat loop til done - "addl $8, %%ecx \n\t" - "pand _ActiveMaskEnd, %%mm1 \n\t" - "paddb -8(%%edi,%%ecx,), %%mm1 \n\t" // add Paeth predictor with - // Raw(x) - - "cmpl _MMXLength, %%ecx \n\t" - "pxor %%mm0, %%mm0 \n\t" // pxor does not affect flags - "movq %%mm1, -8(%%edi,%%ecx,) \n\t" // write back updated value - // mm1 will be used as Raw(x-bpp) next loop - // mm3 ready to be used as Prior(x-bpp) next loop - "jb paeth_3lp \n\t" - - : "=S" (dummy_value_S), // output regs (dummy) - "=D" (dummy_value_D) - - : "0" (prev_row), // esi // input regs - "1" (row) // edi - - : "%ecx" // clobber list -#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm2", "%mm3" - , "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - } - break; // end 3 bpp - - case 6: - //case 7: // GRR BOGUS - //case 5: // GRR BOGUS - { - _ActiveMask.use = 0x00000000ffffffffLL; - _ActiveMask2.use = 0xffffffff00000000LL; - _ShiftBpp.use = bpp << 3; // == bpp * 8 - _ShiftRem.use = 64 - _ShiftBpp.use; - - __asm__ __volatile__ ( - "movl _dif, %%ecx \n\t" -// preload "movl row, %%edi \n\t" -// preload "movl prev_row, %%esi \n\t" - // prime the pump: load the first Raw(x-bpp) data set - "movq -8(%%edi,%%ecx,), %%mm1 \n\t" - "pxor %%mm0, %%mm0 \n\t" - - "paeth_6lp: \n\t" - // must shift to position Raw(x-bpp) data - "psrlq _ShiftRem, %%mm1 \n\t" - // do first set of 4 bytes - "movq -8(%%esi,%%ecx,), %%mm3 \n\t" // read c=Prior(x-bpp) bytes - "punpcklbw %%mm0, %%mm1 \n\t" // unpack Low bytes of a - "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x) - "punpcklbw %%mm0, %%mm2 \n\t" // unpack Low bytes of b - // must shift to position Prior(x-bpp) data - "psrlq _ShiftRem, %%mm3 \n\t" - // pav = p - a = (a + b - c) - a = b - c - "movq %%mm2, %%mm4 \n\t" - "punpcklbw %%mm0, %%mm3 \n\t" // unpack Low bytes of c - // pbv = p - b = (a + b - c) - b = a - c - "movq %%mm1, %%mm5 \n\t" - "psubw %%mm3, %%mm4 \n\t" - "pxor %%mm7, %%mm7 \n\t" - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - "movq %%mm4, %%mm6 \n\t" - "psubw %%mm3, %%mm5 \n\t" - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0 - "paddw %%mm5, %%mm6 \n\t" - "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0 - "psubw %%mm0, %%mm4 \n\t" - "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0 - "psubw %%mm0, %%mm4 \n\t" - "psubw %%mm7, %%mm5 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0 - "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "psubw %%mm7, %%mm5 \n\t" - "psubw %%mm0, %%mm6 \n\t" - // test pa <= pb - "movq %%mm4, %%mm7 \n\t" - "psubw %%mm0, %%mm6 \n\t" - "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb? - "movq %%mm7, %%mm0 \n\t" - // use mm7 mask to merge pa & pb - "pand %%mm7, %%mm5 \n\t" - // use mm0 mask copy to merge a & b - "pand %%mm0, %%mm2 \n\t" - "pandn %%mm4, %%mm7 \n\t" - "pandn %%mm1, %%mm0 \n\t" - "paddw %%mm5, %%mm7 \n\t" - "paddw %%mm2, %%mm0 \n\t" - // test ((pa <= pb)? pa:pb) <= pc - "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc? - "pxor %%mm1, %%mm1 \n\t" - "pand %%mm7, %%mm3 \n\t" - "pandn %%mm0, %%mm7 \n\t" - "paddw %%mm3, %%mm7 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "packuswb %%mm1, %%mm7 \n\t" - "movq -8(%%esi,%%ecx,), %%mm3 \n\t" // load c=Prior(x-bpp) - "pand _ActiveMask, %%mm7 \n\t" - "psrlq _ShiftRem, %%mm3 \n\t" - "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x) step 1 - "paddb (%%edi,%%ecx,), %%mm7 \n\t" // add Paeth predictor and Raw(x) - "movq %%mm2, %%mm6 \n\t" - "movq %%mm7, (%%edi,%%ecx,) \n\t" // write back updated value - "movq -8(%%edi,%%ecx,), %%mm1 \n\t" - "psllq _ShiftBpp, %%mm6 \n\t" - "movq %%mm7, %%mm5 \n\t" - "psrlq _ShiftRem, %%mm1 \n\t" - "por %%mm6, %%mm3 \n\t" - "psllq _ShiftBpp, %%mm5 \n\t" - "punpckhbw %%mm0, %%mm3 \n\t" // unpack High bytes of c - "por %%mm5, %%mm1 \n\t" - // do second set of 4 bytes - "punpckhbw %%mm0, %%mm2 \n\t" // unpack High bytes of b - "punpckhbw %%mm0, %%mm1 \n\t" // unpack High bytes of a - // pav = p - a = (a + b - c) - a = b - c - "movq %%mm2, %%mm4 \n\t" - // pbv = p - b = (a + b - c) - b = a - c - "movq %%mm1, %%mm5 \n\t" - "psubw %%mm3, %%mm4 \n\t" - "pxor %%mm7, %%mm7 \n\t" - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - "movq %%mm4, %%mm6 \n\t" - "psubw %%mm3, %%mm5 \n\t" - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0 - "paddw %%mm5, %%mm6 \n\t" - "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0 - "psubw %%mm0, %%mm4 \n\t" - "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0 - "psubw %%mm0, %%mm4 \n\t" - "psubw %%mm7, %%mm5 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0 - "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "psubw %%mm7, %%mm5 \n\t" - "psubw %%mm0, %%mm6 \n\t" - // test pa <= pb - "movq %%mm4, %%mm7 \n\t" - "psubw %%mm0, %%mm6 \n\t" - "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb? - "movq %%mm7, %%mm0 \n\t" - // use mm7 mask to merge pa & pb - "pand %%mm7, %%mm5 \n\t" - // use mm0 mask copy to merge a & b - "pand %%mm0, %%mm2 \n\t" - "pandn %%mm4, %%mm7 \n\t" - "pandn %%mm1, %%mm0 \n\t" - "paddw %%mm5, %%mm7 \n\t" - "paddw %%mm2, %%mm0 \n\t" - // test ((pa <= pb)? pa:pb) <= pc - "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc? - "pxor %%mm1, %%mm1 \n\t" - "pand %%mm7, %%mm3 \n\t" - "pandn %%mm0, %%mm7 \n\t" - "pxor %%mm1, %%mm1 \n\t" - "paddw %%mm3, %%mm7 \n\t" - "pxor %%mm0, %%mm0 \n\t" - // step ecx to next set of 8 bytes and repeat loop til done - "addl $8, %%ecx \n\t" - "packuswb %%mm7, %%mm1 \n\t" - "paddb -8(%%edi,%%ecx,), %%mm1 \n\t" // add Paeth predictor with Raw(x) - "cmpl _MMXLength, %%ecx \n\t" - "movq %%mm1, -8(%%edi,%%ecx,) \n\t" // write back updated value - // mm1 will be used as Raw(x-bpp) next loop - "jb paeth_6lp \n\t" - - : "=S" (dummy_value_S), // output regs (dummy) - "=D" (dummy_value_D) - - : "0" (prev_row), // esi // input regs - "1" (row) // edi - - : "%ecx" // clobber list -#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm2", "%mm3" - , "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - } - break; // end 6 bpp - - case 4: - { - _ActiveMask.use = 0x00000000ffffffffLL; - - __asm__ __volatile__ ( - "movl _dif, %%ecx \n\t" -// preload "movl row, %%edi \n\t" -// preload "movl prev_row, %%esi \n\t" - "pxor %%mm0, %%mm0 \n\t" - // prime the pump: load the first Raw(x-bpp) data set - "movq -8(%%edi,%%ecx,), %%mm1 \n\t" // only time should need to read - // a=Raw(x-bpp) bytes - "paeth_4lp: \n\t" - // do first set of 4 bytes - "movq -8(%%esi,%%ecx,), %%mm3 \n\t" // read c=Prior(x-bpp) bytes - "punpckhbw %%mm0, %%mm1 \n\t" // unpack Low bytes of a - "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x) - "punpcklbw %%mm0, %%mm2 \n\t" // unpack High bytes of b - // pav = p - a = (a + b - c) - a = b - c - "movq %%mm2, %%mm4 \n\t" - "punpckhbw %%mm0, %%mm3 \n\t" // unpack High bytes of c - // pbv = p - b = (a + b - c) - b = a - c - "movq %%mm1, %%mm5 \n\t" - "psubw %%mm3, %%mm4 \n\t" - "pxor %%mm7, %%mm7 \n\t" - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - "movq %%mm4, %%mm6 \n\t" - "psubw %%mm3, %%mm5 \n\t" - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0 - "paddw %%mm5, %%mm6 \n\t" - "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0 - "psubw %%mm0, %%mm4 \n\t" - "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0 - "psubw %%mm0, %%mm4 \n\t" - "psubw %%mm7, %%mm5 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0 - "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "psubw %%mm7, %%mm5 \n\t" - "psubw %%mm0, %%mm6 \n\t" - // test pa <= pb - "movq %%mm4, %%mm7 \n\t" - "psubw %%mm0, %%mm6 \n\t" - "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb? - "movq %%mm7, %%mm0 \n\t" - // use mm7 mask to merge pa & pb - "pand %%mm7, %%mm5 \n\t" - // use mm0 mask copy to merge a & b - "pand %%mm0, %%mm2 \n\t" - "pandn %%mm4, %%mm7 \n\t" - "pandn %%mm1, %%mm0 \n\t" - "paddw %%mm5, %%mm7 \n\t" - "paddw %%mm2, %%mm0 \n\t" - // test ((pa <= pb)? pa:pb) <= pc - "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc? - "pxor %%mm1, %%mm1 \n\t" - "pand %%mm7, %%mm3 \n\t" - "pandn %%mm0, %%mm7 \n\t" - "paddw %%mm3, %%mm7 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "packuswb %%mm1, %%mm7 \n\t" - "movq (%%esi,%%ecx,), %%mm3 \n\t" // load c=Prior(x-bpp) - "pand _ActiveMask, %%mm7 \n\t" - "movq %%mm3, %%mm2 \n\t" // load b=Prior(x) step 1 - "paddb (%%edi,%%ecx,), %%mm7 \n\t" // add Paeth predictor with Raw(x) - "punpcklbw %%mm0, %%mm3 \n\t" // unpack High bytes of c - "movq %%mm7, (%%edi,%%ecx,) \n\t" // write back updated value - "movq %%mm7, %%mm1 \n\t" // now mm1 will be used as Raw(x-bpp) - // do second set of 4 bytes - "punpckhbw %%mm0, %%mm2 \n\t" // unpack Low bytes of b - "punpcklbw %%mm0, %%mm1 \n\t" // unpack Low bytes of a - // pav = p - a = (a + b - c) - a = b - c - "movq %%mm2, %%mm4 \n\t" - // pbv = p - b = (a + b - c) - b = a - c - "movq %%mm1, %%mm5 \n\t" - "psubw %%mm3, %%mm4 \n\t" - "pxor %%mm7, %%mm7 \n\t" - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - "movq %%mm4, %%mm6 \n\t" - "psubw %%mm3, %%mm5 \n\t" - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0 - "paddw %%mm5, %%mm6 \n\t" - "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0 - "psubw %%mm0, %%mm4 \n\t" - "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0 - "psubw %%mm0, %%mm4 \n\t" - "psubw %%mm7, %%mm5 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0 - "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "psubw %%mm7, %%mm5 \n\t" - "psubw %%mm0, %%mm6 \n\t" - // test pa <= pb - "movq %%mm4, %%mm7 \n\t" - "psubw %%mm0, %%mm6 \n\t" - "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb? - "movq %%mm7, %%mm0 \n\t" - // use mm7 mask to merge pa & pb - "pand %%mm7, %%mm5 \n\t" - // use mm0 mask copy to merge a & b - "pand %%mm0, %%mm2 \n\t" - "pandn %%mm4, %%mm7 \n\t" - "pandn %%mm1, %%mm0 \n\t" - "paddw %%mm5, %%mm7 \n\t" - "paddw %%mm2, %%mm0 \n\t" - // test ((pa <= pb)? pa:pb) <= pc - "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc? - "pxor %%mm1, %%mm1 \n\t" - "pand %%mm7, %%mm3 \n\t" - "pandn %%mm0, %%mm7 \n\t" - "pxor %%mm1, %%mm1 \n\t" - "paddw %%mm3, %%mm7 \n\t" - "pxor %%mm0, %%mm0 \n\t" - // step ecx to next set of 8 bytes and repeat loop til done - "addl $8, %%ecx \n\t" - "packuswb %%mm7, %%mm1 \n\t" - "paddb -8(%%edi,%%ecx,), %%mm1 \n\t" // add predictor with Raw(x) - "cmpl _MMXLength, %%ecx \n\t" - "movq %%mm1, -8(%%edi,%%ecx,) \n\t" // write back updated value - // mm1 will be used as Raw(x-bpp) next loop - "jb paeth_4lp \n\t" - - : "=S" (dummy_value_S), // output regs (dummy) - "=D" (dummy_value_D) - - : "0" (prev_row), // esi // input regs - "1" (row) // edi - - : "%ecx" // clobber list -#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm2", "%mm3" - , "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - } - break; // end 4 bpp - - case 8: // bpp == 8 - { - _ActiveMask.use = 0x00000000ffffffffLL; - - __asm__ __volatile__ ( - "movl _dif, %%ecx \n\t" -// preload "movl row, %%edi \n\t" -// preload "movl prev_row, %%esi \n\t" - "pxor %%mm0, %%mm0 \n\t" - // prime the pump: load the first Raw(x-bpp) data set - "movq -8(%%edi,%%ecx,), %%mm1 \n\t" // only time should need to read - // a=Raw(x-bpp) bytes - "paeth_8lp: \n\t" - // do first set of 4 bytes - "movq -8(%%esi,%%ecx,), %%mm3 \n\t" // read c=Prior(x-bpp) bytes - "punpcklbw %%mm0, %%mm1 \n\t" // unpack Low bytes of a - "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x) - "punpcklbw %%mm0, %%mm2 \n\t" // unpack Low bytes of b - // pav = p - a = (a + b - c) - a = b - c - "movq %%mm2, %%mm4 \n\t" - "punpcklbw %%mm0, %%mm3 \n\t" // unpack Low bytes of c - // pbv = p - b = (a + b - c) - b = a - c - "movq %%mm1, %%mm5 \n\t" - "psubw %%mm3, %%mm4 \n\t" - "pxor %%mm7, %%mm7 \n\t" - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - "movq %%mm4, %%mm6 \n\t" - "psubw %%mm3, %%mm5 \n\t" - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0 - "paddw %%mm5, %%mm6 \n\t" - "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0 - "psubw %%mm0, %%mm4 \n\t" - "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0 - "psubw %%mm0, %%mm4 \n\t" - "psubw %%mm7, %%mm5 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0 - "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "psubw %%mm7, %%mm5 \n\t" - "psubw %%mm0, %%mm6 \n\t" - // test pa <= pb - "movq %%mm4, %%mm7 \n\t" - "psubw %%mm0, %%mm6 \n\t" - "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb? - "movq %%mm7, %%mm0 \n\t" - // use mm7 mask to merge pa & pb - "pand %%mm7, %%mm5 \n\t" - // use mm0 mask copy to merge a & b - "pand %%mm0, %%mm2 \n\t" - "pandn %%mm4, %%mm7 \n\t" - "pandn %%mm1, %%mm0 \n\t" - "paddw %%mm5, %%mm7 \n\t" - "paddw %%mm2, %%mm0 \n\t" - // test ((pa <= pb)? pa:pb) <= pc - "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc? - "pxor %%mm1, %%mm1 \n\t" - "pand %%mm7, %%mm3 \n\t" - "pandn %%mm0, %%mm7 \n\t" - "paddw %%mm3, %%mm7 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "packuswb %%mm1, %%mm7 \n\t" - "movq -8(%%esi,%%ecx,), %%mm3 \n\t" // read c=Prior(x-bpp) bytes - "pand _ActiveMask, %%mm7 \n\t" - "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x) - "paddb (%%edi,%%ecx,), %%mm7 \n\t" // add Paeth predictor with Raw(x) - "punpckhbw %%mm0, %%mm3 \n\t" // unpack High bytes of c - "movq %%mm7, (%%edi,%%ecx,) \n\t" // write back updated value - "movq -8(%%edi,%%ecx,), %%mm1 \n\t" // read a=Raw(x-bpp) bytes - - // do second set of 4 bytes - "punpckhbw %%mm0, %%mm2 \n\t" // unpack High bytes of b - "punpckhbw %%mm0, %%mm1 \n\t" // unpack High bytes of a - // pav = p - a = (a + b - c) - a = b - c - "movq %%mm2, %%mm4 \n\t" - // pbv = p - b = (a + b - c) - b = a - c - "movq %%mm1, %%mm5 \n\t" - "psubw %%mm3, %%mm4 \n\t" - "pxor %%mm7, %%mm7 \n\t" - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - "movq %%mm4, %%mm6 \n\t" - "psubw %%mm3, %%mm5 \n\t" - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0 - "paddw %%mm5, %%mm6 \n\t" - "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0 - "psubw %%mm0, %%mm4 \n\t" - "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0 - "psubw %%mm0, %%mm4 \n\t" - "psubw %%mm7, %%mm5 \n\t" - "pxor %%mm0, %%mm0 \n\t" - "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0 - "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7 - "psubw %%mm7, %%mm5 \n\t" - "psubw %%mm0, %%mm6 \n\t" - // test pa <= pb - "movq %%mm4, %%mm7 \n\t" - "psubw %%mm0, %%mm6 \n\t" - "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb? - "movq %%mm7, %%mm0 \n\t" - // use mm7 mask to merge pa & pb - "pand %%mm7, %%mm5 \n\t" - // use mm0 mask copy to merge a & b - "pand %%mm0, %%mm2 \n\t" - "pandn %%mm4, %%mm7 \n\t" - "pandn %%mm1, %%mm0 \n\t" - "paddw %%mm5, %%mm7 \n\t" - "paddw %%mm2, %%mm0 \n\t" - // test ((pa <= pb)? pa:pb) <= pc - "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc? - "pxor %%mm1, %%mm1 \n\t" - "pand %%mm7, %%mm3 \n\t" - "pandn %%mm0, %%mm7 \n\t" - "pxor %%mm1, %%mm1 \n\t" - "paddw %%mm3, %%mm7 \n\t" - "pxor %%mm0, %%mm0 \n\t" - // step ecx to next set of 8 bytes and repeat loop til done - "addl $8, %%ecx \n\t" - "packuswb %%mm7, %%mm1 \n\t" - "paddb -8(%%edi,%%ecx,), %%mm1 \n\t" // add Paeth predictor with Raw(x) - "cmpl _MMXLength, %%ecx \n\t" - "movq %%mm1, -8(%%edi,%%ecx,) \n\t" // write back updated value - // mm1 will be used as Raw(x-bpp) next loop - "jb paeth_8lp \n\t" - - : "=S" (dummy_value_S), // output regs (dummy) - "=D" (dummy_value_D) - - : "0" (prev_row), // esi // input regs - "1" (row) // edi - - : "%ecx" // clobber list -#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm2", "%mm3" - , "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - } - break; // end 8 bpp - - case 1: // bpp = 1 - case 2: // bpp = 2 - default: // bpp > 8 - { - __asm__ __volatile__ ( -#ifdef __PIC__ - "pushl %%ebx \n\t" // save Global Offset Table index -#endif - "movl _dif, %%ebx \n\t" - "cmpl _FullLength, %%ebx \n\t" - "jnb paeth_dend \n\t" - -// preload "movl row, %%edi \n\t" -// preload "movl prev_row, %%esi \n\t" - // do Paeth decode for remaining bytes - "movl %%ebx, %%edx \n\t" -// preload "subl bpp, %%edx \n\t" // (bpp is preloaded into ecx) - "subl %%ecx, %%edx \n\t" // edx = ebx - bpp - "xorl %%ecx, %%ecx \n\t" // zero ecx before using cl & cx - - "paeth_dlp: \n\t" - "xorl %%eax, %%eax \n\t" - // pav = p - a = (a + b - c) - a = b - c - "movb (%%esi,%%ebx,), %%al \n\t" // load Prior(x) into al - "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl - "subl %%ecx, %%eax \n\t" // subtract Prior(x-bpp) - "movl %%eax, _patemp \n\t" // Save pav for later use - "xorl %%eax, %%eax \n\t" - // pbv = p - b = (a + b - c) - b = a - c - "movb (%%edi,%%edx,), %%al \n\t" // load Raw(x-bpp) into al - "subl %%ecx, %%eax \n\t" // subtract Prior(x-bpp) - "movl %%eax, %%ecx \n\t" - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - "addl _patemp, %%eax \n\t" // pcv = pav + pbv - // pc = abs(pcv) - "testl $0x80000000, %%eax \n\t" - "jz paeth_dpca \n\t" - "negl %%eax \n\t" // reverse sign of neg values - - "paeth_dpca: \n\t" - "movl %%eax, _pctemp \n\t" // save pc for later use - // pb = abs(pbv) - "testl $0x80000000, %%ecx \n\t" - "jz paeth_dpba \n\t" - "negl %%ecx \n\t" // reverse sign of neg values - - "paeth_dpba: \n\t" - "movl %%ecx, _pbtemp \n\t" // save pb for later use - // pa = abs(pav) - "movl _patemp, %%eax \n\t" - "testl $0x80000000, %%eax \n\t" - "jz paeth_dpaa \n\t" - "negl %%eax \n\t" // reverse sign of neg values - - "paeth_dpaa: \n\t" - "movl %%eax, _patemp \n\t" // save pa for later use - // test if pa <= pb - "cmpl %%ecx, %%eax \n\t" - "jna paeth_dabb \n\t" - // pa > pb; now test if pb <= pc - "cmpl _pctemp, %%ecx \n\t" - "jna paeth_dbbc \n\t" - // pb > pc; Raw(x) = Paeth(x) + Prior(x-bpp) - "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl - "jmp paeth_dpaeth \n\t" - - "paeth_dbbc: \n\t" - // pb <= pc; Raw(x) = Paeth(x) + Prior(x) - "movb (%%esi,%%ebx,), %%cl \n\t" // load Prior(x) into cl - "jmp paeth_dpaeth \n\t" - - "paeth_dabb: \n\t" - // pa <= pb; now test if pa <= pc - "cmpl _pctemp, %%eax \n\t" - "jna paeth_dabc \n\t" - // pa > pc; Raw(x) = Paeth(x) + Prior(x-bpp) - "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl - "jmp paeth_dpaeth \n\t" - - "paeth_dabc: \n\t" - // pa <= pc; Raw(x) = Paeth(x) + Raw(x-bpp) - "movb (%%edi,%%edx,), %%cl \n\t" // load Raw(x-bpp) into cl - - "paeth_dpaeth: \n\t" - "incl %%ebx \n\t" - "incl %%edx \n\t" - // Raw(x) = (Paeth(x) + Paeth_Predictor( a, b, c )) mod 256 - "addb %%cl, -1(%%edi,%%ebx,) \n\t" - "cmpl _FullLength, %%ebx \n\t" - "jb paeth_dlp \n\t" - - "paeth_dend: \n\t" -#ifdef __PIC__ - "popl %%ebx \n\t" // index to Global Offset Table -#endif - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "0" (bpp), // ecx // input regs - "1" (prev_row), // esi - "2" (row) // edi - - : "%eax", "%edx" // clobber list -#ifndef __PIC__ - , "%ebx" -#endif - ); - } - return; // No need to go further with this one - - } // end switch (bpp) - - __asm__ __volatile__ ( - // MMX acceleration complete; now do clean-up - // check if any remaining bytes left to decode -#ifdef __PIC__ - "pushl %%ebx \n\t" // save index to Global Offset Table -#endif - "movl _MMXLength, %%ebx \n\t" - "cmpl _FullLength, %%ebx \n\t" - "jnb paeth_end \n\t" -//pre "movl row, %%edi \n\t" -//pre "movl prev_row, %%esi \n\t" - // do Paeth decode for remaining bytes - "movl %%ebx, %%edx \n\t" -//pre "subl bpp, %%edx \n\t" // (bpp is preloaded into ecx) - "subl %%ecx, %%edx \n\t" // edx = ebx - bpp - "xorl %%ecx, %%ecx \n\t" // zero ecx before using cl & cx below - - "paeth_lp2: \n\t" - "xorl %%eax, %%eax \n\t" - // pav = p - a = (a + b - c) - a = b - c - "movb (%%esi,%%ebx,), %%al \n\t" // load Prior(x) into al - "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl - "subl %%ecx, %%eax \n\t" // subtract Prior(x-bpp) - "movl %%eax, _patemp \n\t" // Save pav for later use - "xorl %%eax, %%eax \n\t" - // pbv = p - b = (a + b - c) - b = a - c - "movb (%%edi,%%edx,), %%al \n\t" // load Raw(x-bpp) into al - "subl %%ecx, %%eax \n\t" // subtract Prior(x-bpp) - "movl %%eax, %%ecx \n\t" - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - "addl _patemp, %%eax \n\t" // pcv = pav + pbv - // pc = abs(pcv) - "testl $0x80000000, %%eax \n\t" - "jz paeth_pca2 \n\t" - "negl %%eax \n\t" // reverse sign of neg values - - "paeth_pca2: \n\t" - "movl %%eax, _pctemp \n\t" // save pc for later use - // pb = abs(pbv) - "testl $0x80000000, %%ecx \n\t" - "jz paeth_pba2 \n\t" - "negl %%ecx \n\t" // reverse sign of neg values - - "paeth_pba2: \n\t" - "movl %%ecx, _pbtemp \n\t" // save pb for later use - // pa = abs(pav) - "movl _patemp, %%eax \n\t" - "testl $0x80000000, %%eax \n\t" - "jz paeth_paa2 \n\t" - "negl %%eax \n\t" // reverse sign of neg values - - "paeth_paa2: \n\t" - "movl %%eax, _patemp \n\t" // save pa for later use - // test if pa <= pb - "cmpl %%ecx, %%eax \n\t" - "jna paeth_abb2 \n\t" - // pa > pb; now test if pb <= pc - "cmpl _pctemp, %%ecx \n\t" - "jna paeth_bbc2 \n\t" - // pb > pc; Raw(x) = Paeth(x) + Prior(x-bpp) - "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl - "jmp paeth_paeth2 \n\t" - - "paeth_bbc2: \n\t" - // pb <= pc; Raw(x) = Paeth(x) + Prior(x) - "movb (%%esi,%%ebx,), %%cl \n\t" // load Prior(x) into cl - "jmp paeth_paeth2 \n\t" - - "paeth_abb2: \n\t" - // pa <= pb; now test if pa <= pc - "cmpl _pctemp, %%eax \n\t" - "jna paeth_abc2 \n\t" - // pa > pc; Raw(x) = Paeth(x) + Prior(x-bpp) - "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl - "jmp paeth_paeth2 \n\t" - - "paeth_abc2: \n\t" - // pa <= pc; Raw(x) = Paeth(x) + Raw(x-bpp) - "movb (%%edi,%%edx,), %%cl \n\t" // load Raw(x-bpp) into cl - - "paeth_paeth2: \n\t" - "incl %%ebx \n\t" - "incl %%edx \n\t" - // Raw(x) = (Paeth(x) + Paeth_Predictor( a, b, c )) mod 256 - "addb %%cl, -1(%%edi,%%ebx,) \n\t" - "cmpl _FullLength, %%ebx \n\t" - "jb paeth_lp2 \n\t" - - "paeth_end: \n\t" - "EMMS \n\t" // end MMX; prep for poss. FP instrs. -#ifdef __PIC__ - "popl %%ebx \n\t" // restore index to Global Offset Table -#endif - - : "=c" (dummy_value_c), // output regs (dummy) - "=S" (dummy_value_S), - "=D" (dummy_value_D) - - : "0" (bpp), // ecx // input regs - "1" (prev_row), // esi - "2" (row) // edi - - : "%eax", "%edx" // clobber list (no input regs!) -#ifndef __PIC__ - , "%ebx" -#endif - ); - -} /* end png_read_filter_row_mmx_paeth() */ -#endif - - - - -#ifdef PNG_THREAD_UNSAFE_OK -//===========================================================================// -// // -// P N G _ R E A D _ F I L T E R _ R O W _ M M X _ S U B // -// // -//===========================================================================// - -// Optimized code for PNG Sub filter decoder - -static void /* PRIVATE */ -png_read_filter_row_mmx_sub(png_row_infop row_info, png_bytep row) -{ - int bpp; - int dummy_value_a; - int dummy_value_D; - - bpp = (row_info->pixel_depth + 7) >> 3; // calc number of bytes per pixel - _FullLength = row_info->rowbytes - bpp; // number of bytes to filter - - __asm__ __volatile__ ( -//pre "movl row, %%edi \n\t" - "movl %%edi, %%esi \n\t" // lp = row -//pre "movl bpp, %%eax \n\t" - "addl %%eax, %%edi \n\t" // rp = row + bpp -//irr "xorl %%eax, %%eax \n\t" - // get # of bytes to alignment - "movl %%edi, _dif \n\t" // take start of row - "addl $0xf, _dif \n\t" // add 7 + 8 to incr past - // alignment boundary - "xorl %%ecx, %%ecx \n\t" - "andl $0xfffffff8, _dif \n\t" // mask to alignment boundary - "subl %%edi, _dif \n\t" // subtract from start ==> value - "jz sub_go \n\t" // ecx at alignment - - "sub_lp1: \n\t" // fix alignment - "movb (%%esi,%%ecx,), %%al \n\t" - "addb %%al, (%%edi,%%ecx,) \n\t" - "incl %%ecx \n\t" - "cmpl _dif, %%ecx \n\t" - "jb sub_lp1 \n\t" - - "sub_go: \n\t" - "movl _FullLength, %%eax \n\t" - "movl %%eax, %%edx \n\t" - "subl %%ecx, %%edx \n\t" // subtract alignment fix - "andl $0x00000007, %%edx \n\t" // calc bytes over mult of 8 - "subl %%edx, %%eax \n\t" // drop over bytes from length - "movl %%eax, _MMXLength \n\t" - - : "=a" (dummy_value_a), // 0 // output regs (dummy) - "=D" (dummy_value_D) // 1 - - : "0" (bpp), // eax // input regs - "1" (row) // edi - - : "%ebx", "%ecx", "%edx" // clobber list - , "%esi" - -#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm2", "%mm3" - , "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - - // now do the math for the rest of the row - switch (bpp) - { - case 3: - { - _ActiveMask.use = 0x0000ffffff000000LL; - _ShiftBpp.use = 24; // == 3 * 8 - _ShiftRem.use = 40; // == 64 - 24 - - __asm__ __volatile__ ( -// preload "movl row, %%edi \n\t" - "movq _ActiveMask, %%mm7 \n\t" // load _ActiveMask for 2nd - // active byte group - "movl %%edi, %%esi \n\t" // lp = row -// preload "movl bpp, %%eax \n\t" - "addl %%eax, %%edi \n\t" // rp = row + bpp - "movq %%mm7, %%mm6 \n\t" - "movl _dif, %%edx \n\t" - "psllq _ShiftBpp, %%mm6 \n\t" // move mask in mm6 to cover - // 3rd active byte group - // prime the pump: load the first Raw(x-bpp) data set - "movq -8(%%edi,%%edx,), %%mm1 \n\t" - - "sub_3lp: \n\t" // shift data for adding first - "psrlq _ShiftRem, %%mm1 \n\t" // bpp bytes (no need for mask; - // shift clears inactive bytes) - // add 1st active group - "movq (%%edi,%%edx,), %%mm0 \n\t" - "paddb %%mm1, %%mm0 \n\t" - - // add 2nd active group - "movq %%mm0, %%mm1 \n\t" // mov updated Raws to mm1 - "psllq _ShiftBpp, %%mm1 \n\t" // shift data to pos. correctly - "pand %%mm7, %%mm1 \n\t" // mask to use 2nd active group - "paddb %%mm1, %%mm0 \n\t" - - // add 3rd active group - "movq %%mm0, %%mm1 \n\t" // mov updated Raws to mm1 - "psllq _ShiftBpp, %%mm1 \n\t" // shift data to pos. correctly - "pand %%mm6, %%mm1 \n\t" // mask to use 3rd active group - "addl $8, %%edx \n\t" - "paddb %%mm1, %%mm0 \n\t" - - "cmpl _MMXLength, %%edx \n\t" - "movq %%mm0, -8(%%edi,%%edx,) \n\t" // write updated Raws to array - "movq %%mm0, %%mm1 \n\t" // prep 1st add at top of loop - "jb sub_3lp \n\t" - - : "=a" (dummy_value_a), // 0 // output regs (dummy) - "=D" (dummy_value_D) // 1 - - : "0" (bpp), // eax // input regs - "1" (row) // edi - - : "%edx", "%esi" // clobber list -#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm6", "%mm7" -#endif - ); - } - break; - - case 1: - { - __asm__ __volatile__ ( - "movl _dif, %%edx \n\t" -// preload "movl row, %%edi \n\t" - "cmpl _FullLength, %%edx \n\t" - "jnb sub_1end \n\t" - "movl %%edi, %%esi \n\t" // lp = row - "xorl %%eax, %%eax \n\t" -// preload "movl bpp, %%eax \n\t" - "addl %%eax, %%edi \n\t" // rp = row + bpp - - "sub_1lp: \n\t" - "movb (%%esi,%%edx,), %%al \n\t" - "addb %%al, (%%edi,%%edx,) \n\t" - "incl %%edx \n\t" - "cmpl _FullLength, %%edx \n\t" - "jb sub_1lp \n\t" - - "sub_1end: \n\t" - - : "=a" (dummy_value_a), // 0 // output regs (dummy) - "=D" (dummy_value_D) // 1 - - : "0" (bpp), // eax // input regs - "1" (row) // edi - - : "%edx", "%esi" // clobber list - ); - } - return; - - case 6: - case 4: - //case 7: // GRR BOGUS - //case 5: // GRR BOGUS - { - _ShiftBpp.use = bpp << 3; - _ShiftRem.use = 64 - _ShiftBpp.use; - - __asm__ __volatile__ ( -// preload "movl row, %%edi \n\t" - "movl _dif, %%edx \n\t" - "movl %%edi, %%esi \n\t" // lp = row -// preload "movl bpp, %%eax \n\t" - "addl %%eax, %%edi \n\t" // rp = row + bpp - - // prime the pump: load the first Raw(x-bpp) data set - "movq -8(%%edi,%%edx,), %%mm1 \n\t" - - "sub_4lp: \n\t" // shift data for adding first - "psrlq _ShiftRem, %%mm1 \n\t" // bpp bytes (no need for mask; - // shift clears inactive bytes) - "movq (%%edi,%%edx,), %%mm0 \n\t" - "paddb %%mm1, %%mm0 \n\t" - - // add 2nd active group - "movq %%mm0, %%mm1 \n\t" // mov updated Raws to mm1 - "psllq _ShiftBpp, %%mm1 \n\t" // shift data to pos. correctly - "addl $8, %%edx \n\t" - "paddb %%mm1, %%mm0 \n\t" - - "cmpl _MMXLength, %%edx \n\t" - "movq %%mm0, -8(%%edi,%%edx,) \n\t" - "movq %%mm0, %%mm1 \n\t" // prep 1st add at top of loop - "jb sub_4lp \n\t" - - : "=a" (dummy_value_a), // 0 // output regs (dummy) - "=D" (dummy_value_D) // 1 - - : "0" (bpp), // eax // input regs - "1" (row) // edi - - : "%edx", "%esi" // clobber list -#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1" -#endif - ); - } - break; - - case 2: - { - _ActiveMask.use = 0x00000000ffff0000LL; - _ShiftBpp.use = 16; // == 2 * 8 - _ShiftRem.use = 48; // == 64 - 16 - - __asm__ __volatile__ ( - "movq _ActiveMask, %%mm7 \n\t" // load _ActiveMask for 2nd - // active byte group - "movl _dif, %%edx \n\t" - "movq %%mm7, %%mm6 \n\t" -// preload "movl row, %%edi \n\t" - "psllq _ShiftBpp, %%mm6 \n\t" // move mask in mm6 to cover - // 3rd active byte group - "movl %%edi, %%esi \n\t" // lp = row - "movq %%mm6, %%mm5 \n\t" -// preload "movl bpp, %%eax \n\t" - "addl %%eax, %%edi \n\t" // rp = row + bpp - "psllq _ShiftBpp, %%mm5 \n\t" // move mask in mm5 to cover - // 4th active byte group - // prime the pump: load the first Raw(x-bpp) data set - "movq -8(%%edi,%%edx,), %%mm1 \n\t" - - "sub_2lp: \n\t" // shift data for adding first - "psrlq _ShiftRem, %%mm1 \n\t" // bpp bytes (no need for mask; - // shift clears inactive bytes) - // add 1st active group - "movq (%%edi,%%edx,), %%mm0 \n\t" - "paddb %%mm1, %%mm0 \n\t" - - // add 2nd active group - "movq %%mm0, %%mm1 \n\t" // mov updated Raws to mm1 - "psllq _ShiftBpp, %%mm1 \n\t" // shift data to pos. correctly - "pand %%mm7, %%mm1 \n\t" // mask to use 2nd active group - "paddb %%mm1, %%mm0 \n\t" - - // add 3rd active group - "movq %%mm0, %%mm1 \n\t" // mov updated Raws to mm1 - "psllq _ShiftBpp, %%mm1 \n\t" // shift data to pos. correctly - "pand %%mm6, %%mm1 \n\t" // mask to use 3rd active group - "paddb %%mm1, %%mm0 \n\t" - - // add 4th active group - "movq %%mm0, %%mm1 \n\t" // mov updated Raws to mm1 - "psllq _ShiftBpp, %%mm1 \n\t" // shift data to pos. correctly - "pand %%mm5, %%mm1 \n\t" // mask to use 4th active group - "addl $8, %%edx \n\t" - "paddb %%mm1, %%mm0 \n\t" - "cmpl _MMXLength, %%edx \n\t" - "movq %%mm0, -8(%%edi,%%edx,) \n\t" // write updated Raws to array - "movq %%mm0, %%mm1 \n\t" // prep 1st add at top of loop - "jb sub_2lp \n\t" - - : "=a" (dummy_value_a), // 0 // output regs (dummy) - "=D" (dummy_value_D) // 1 - - : "0" (bpp), // eax // input regs - "1" (row) // edi - - : "%edx", "%esi" // clobber list -#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm5", "%mm6", "%mm7" -#endif - ); - } - break; - - case 8: - { - __asm__ __volatile__ ( -// preload "movl row, %%edi \n\t" - "movl _dif, %%edx \n\t" - "movl %%edi, %%esi \n\t" // lp = row -// preload "movl bpp, %%eax \n\t" - "addl %%eax, %%edi \n\t" // rp = row + bpp - "movl _MMXLength, %%ecx \n\t" - - // prime the pump: load the first Raw(x-bpp) data set - "movq -8(%%edi,%%edx,), %%mm7 \n\t" - "andl $0x0000003f, %%ecx \n\t" // calc bytes over mult of 64 - - "sub_8lp: \n\t" - "movq (%%edi,%%edx,), %%mm0 \n\t" // load Sub(x) for 1st 8 bytes - "paddb %%mm7, %%mm0 \n\t" - "movq 8(%%edi,%%edx,), %%mm1 \n\t" // load Sub(x) for 2nd 8 bytes - "movq %%mm0, (%%edi,%%edx,) \n\t" // write Raw(x) for 1st 8 bytes - - // Now mm0 will be used as Raw(x-bpp) for the 2nd group of 8 bytes. - // This will be repeated for each group of 8 bytes with the 8th - // group being used as the Raw(x-bpp) for the 1st group of the - // next loop. - - "paddb %%mm0, %%mm1 \n\t" - "movq 16(%%edi,%%edx,), %%mm2 \n\t" // load Sub(x) for 3rd 8 bytes - "movq %%mm1, 8(%%edi,%%edx,) \n\t" // write Raw(x) for 2nd 8 bytes - "paddb %%mm1, %%mm2 \n\t" - "movq 24(%%edi,%%edx,), %%mm3 \n\t" // load Sub(x) for 4th 8 bytes - "movq %%mm2, 16(%%edi,%%edx,) \n\t" // write Raw(x) for 3rd 8 bytes - "paddb %%mm2, %%mm3 \n\t" - "movq 32(%%edi,%%edx,), %%mm4 \n\t" // load Sub(x) for 5th 8 bytes - "movq %%mm3, 24(%%edi,%%edx,) \n\t" // write Raw(x) for 4th 8 bytes - "paddb %%mm3, %%mm4 \n\t" - "movq 40(%%edi,%%edx,), %%mm5 \n\t" // load Sub(x) for 6th 8 bytes - "movq %%mm4, 32(%%edi,%%edx,) \n\t" // write Raw(x) for 5th 8 bytes - "paddb %%mm4, %%mm5 \n\t" - "movq 48(%%edi,%%edx,), %%mm6 \n\t" // load Sub(x) for 7th 8 bytes - "movq %%mm5, 40(%%edi,%%edx,) \n\t" // write Raw(x) for 6th 8 bytes - "paddb %%mm5, %%mm6 \n\t" - "movq 56(%%edi,%%edx,), %%mm7 \n\t" // load Sub(x) for 8th 8 bytes - "movq %%mm6, 48(%%edi,%%edx,) \n\t" // write Raw(x) for 7th 8 bytes - "addl $64, %%edx \n\t" - "paddb %%mm6, %%mm7 \n\t" - "cmpl %%ecx, %%edx \n\t" - "movq %%mm7, -8(%%edi,%%edx,) \n\t" // write Raw(x) for 8th 8 bytes - "jb sub_8lp \n\t" - - "cmpl _MMXLength, %%edx \n\t" - "jnb sub_8lt8 \n\t" - - "sub_8lpA: \n\t" - "movq (%%edi,%%edx,), %%mm0 \n\t" - "addl $8, %%edx \n\t" - "paddb %%mm7, %%mm0 \n\t" - "cmpl _MMXLength, %%edx \n\t" - "movq %%mm0, -8(%%edi,%%edx,) \n\t" // -8 to offset early addl edx - "movq %%mm0, %%mm7 \n\t" // move calculated Raw(x) data - // to mm1 to be new Raw(x-bpp) - // for next loop - "jb sub_8lpA \n\t" - - "sub_8lt8: \n\t" - - : "=a" (dummy_value_a), // 0 // output regs (dummy) - "=D" (dummy_value_D) // 1 - - : "0" (bpp), // eax // input regs - "1" (row) // edi - - : "%ecx", "%edx", "%esi" // clobber list -#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm2", "%mm3", "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - } - break; - - default: // bpp greater than 8 bytes GRR BOGUS - { - __asm__ __volatile__ ( - "movl _dif, %%edx \n\t" -// preload "movl row, %%edi \n\t" - "movl %%edi, %%esi \n\t" // lp = row -// preload "movl bpp, %%eax \n\t" - "addl %%eax, %%edi \n\t" // rp = row + bpp - - "sub_Alp: \n\t" - "movq (%%edi,%%edx,), %%mm0 \n\t" - "movq (%%esi,%%edx,), %%mm1 \n\t" - "addl $8, %%edx \n\t" - "paddb %%mm1, %%mm0 \n\t" - "cmpl _MMXLength, %%edx \n\t" - "movq %%mm0, -8(%%edi,%%edx,) \n\t" // mov does not affect flags; - // -8 to offset addl edx - "jb sub_Alp \n\t" - - : "=a" (dummy_value_a), // 0 // output regs (dummy) - "=D" (dummy_value_D) // 1 - - : "0" (bpp), // eax // input regs - "1" (row) // edi - - : "%edx", "%esi" // clobber list -#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1" -#endif - ); - } - break; - - } // end switch (bpp) - - __asm__ __volatile__ ( - "movl _MMXLength, %%edx \n\t" -//pre "movl row, %%edi \n\t" - "cmpl _FullLength, %%edx \n\t" - "jnb sub_end \n\t" - - "movl %%edi, %%esi \n\t" // lp = row -//pre "movl bpp, %%eax \n\t" - "addl %%eax, %%edi \n\t" // rp = row + bpp - "xorl %%eax, %%eax \n\t" - - "sub_lp2: \n\t" - "movb (%%esi,%%edx,), %%al \n\t" - "addb %%al, (%%edi,%%edx,) \n\t" - "incl %%edx \n\t" - "cmpl _FullLength, %%edx \n\t" - "jb sub_lp2 \n\t" - - "sub_end: \n\t" - "EMMS \n\t" // end MMX instructions - - : "=a" (dummy_value_a), // 0 // output regs (dummy) - "=D" (dummy_value_D) // 1 - - : "0" (bpp), // eax // input regs - "1" (row) // edi - - : "%edx", "%esi" // clobber list - ); - -} // end of png_read_filter_row_mmx_sub() -#endif - - - - -//===========================================================================// -// // -// P N G _ R E A D _ F I L T E R _ R O W _ M M X _ U P // -// // -//===========================================================================// - -// Optimized code for PNG Up filter decoder - -static void /* PRIVATE */ -png_read_filter_row_mmx_up(png_row_infop row_info, png_bytep row, - png_bytep prev_row) -{ - png_uint_32 len; - int dummy_value_d; // fix 'forbidden register 3 (dx) was spilled' error - int dummy_value_S; - int dummy_value_D; - - len = row_info->rowbytes; // number of bytes to filter - - __asm__ __volatile__ ( -//pre "movl row, %%edi \n\t" - // get # of bytes to alignment -#ifdef __PIC__ - "pushl %%ebx \n\t" -#endif - "movl %%edi, %%ecx \n\t" - "xorl %%ebx, %%ebx \n\t" - "addl $0x7, %%ecx \n\t" - "xorl %%eax, %%eax \n\t" - "andl $0xfffffff8, %%ecx \n\t" -//pre "movl prev_row, %%esi \n\t" - "subl %%edi, %%ecx \n\t" - "jz up_go \n\t" - - "up_lp1: \n\t" // fix alignment - "movb (%%edi,%%ebx,), %%al \n\t" - "addb (%%esi,%%ebx,), %%al \n\t" - "incl %%ebx \n\t" - "cmpl %%ecx, %%ebx \n\t" - "movb %%al, -1(%%edi,%%ebx,) \n\t" // mov does not affect flags; -1 to - "jb up_lp1 \n\t" // offset incl ebx - - "up_go: \n\t" -//pre "movl len, %%edx \n\t" - "movl %%edx, %%ecx \n\t" - "subl %%ebx, %%edx \n\t" // subtract alignment fix - "andl $0x0000003f, %%edx \n\t" // calc bytes over mult of 64 - "subl %%edx, %%ecx \n\t" // drop over bytes from length - - // unrolled loop - use all MMX registers and interleave to reduce - // number of branch instructions (loops) and reduce partial stalls - "up_loop: \n\t" - "movq (%%esi,%%ebx,), %%mm1 \n\t" - "movq (%%edi,%%ebx,), %%mm0 \n\t" - "movq 8(%%esi,%%ebx,), %%mm3 \n\t" - "paddb %%mm1, %%mm0 \n\t" - "movq 8(%%edi,%%ebx,), %%mm2 \n\t" - "movq %%mm0, (%%edi,%%ebx,) \n\t" - "paddb %%mm3, %%mm2 \n\t" - "movq 16(%%esi,%%ebx,), %%mm5 \n\t" - "movq %%mm2, 8(%%edi,%%ebx,) \n\t" - "movq 16(%%edi,%%ebx,), %%mm4 \n\t" - "movq 24(%%esi,%%ebx,), %%mm7 \n\t" - "paddb %%mm5, %%mm4 \n\t" - "movq 24(%%edi,%%ebx,), %%mm6 \n\t" - "movq %%mm4, 16(%%edi,%%ebx,) \n\t" - "paddb %%mm7, %%mm6 \n\t" - "movq 32(%%esi,%%ebx,), %%mm1 \n\t" - "movq %%mm6, 24(%%edi,%%ebx,) \n\t" - "movq 32(%%edi,%%ebx,), %%mm0 \n\t" - "movq 40(%%esi,%%ebx,), %%mm3 \n\t" - "paddb %%mm1, %%mm0 \n\t" - "movq 40(%%edi,%%ebx,), %%mm2 \n\t" - "movq %%mm0, 32(%%edi,%%ebx,) \n\t" - "paddb %%mm3, %%mm2 \n\t" - "movq 48(%%esi,%%ebx,), %%mm5 \n\t" - "movq %%mm2, 40(%%edi,%%ebx,) \n\t" - "movq 48(%%edi,%%ebx,), %%mm4 \n\t" - "movq 56(%%esi,%%ebx,), %%mm7 \n\t" - "paddb %%mm5, %%mm4 \n\t" - "movq 56(%%edi,%%ebx,), %%mm6 \n\t" - "movq %%mm4, 48(%%edi,%%ebx,) \n\t" - "addl $64, %%ebx \n\t" - "paddb %%mm7, %%mm6 \n\t" - "cmpl %%ecx, %%ebx \n\t" - "movq %%mm6, -8(%%edi,%%ebx,) \n\t" // (+56)movq does not affect flags; - "jb up_loop \n\t" // -8 to offset addl ebx - - "cmpl $0, %%edx \n\t" // test for bytes over mult of 64 - "jz up_end \n\t" - - "cmpl $8, %%edx \n\t" // test for less than 8 bytes - "jb up_lt8 \n\t" // [added by lcreeve@netins.net] - - "addl %%edx, %%ecx \n\t" - "andl $0x00000007, %%edx \n\t" // calc bytes over mult of 8 - "subl %%edx, %%ecx \n\t" // drop over bytes from length - "jz up_lt8 \n\t" - - "up_lpA: \n\t" // use MMX regs to update 8 bytes sim. - "movq (%%esi,%%ebx,), %%mm1 \n\t" - "movq (%%edi,%%ebx,), %%mm0 \n\t" - "addl $8, %%ebx \n\t" - "paddb %%mm1, %%mm0 \n\t" - "cmpl %%ecx, %%ebx \n\t" - "movq %%mm0, -8(%%edi,%%ebx,) \n\t" // movq does not affect flags; -8 to - "jb up_lpA \n\t" // offset add ebx - "cmpl $0, %%edx \n\t" // test for bytes over mult of 8 - "jz up_end \n\t" - - "up_lt8: \n\t" - "xorl %%eax, %%eax \n\t" - "addl %%edx, %%ecx \n\t" // move over byte count into counter - - "up_lp2: \n\t" // use x86 regs for remaining bytes - "movb (%%edi,%%ebx,), %%al \n\t" - "addb (%%esi,%%ebx,), %%al \n\t" - "incl %%ebx \n\t" - "cmpl %%ecx, %%ebx \n\t" - "movb %%al, -1(%%edi,%%ebx,) \n\t" // mov does not affect flags; -1 to - "jb up_lp2 \n\t" // offset inc ebx - - "up_end: \n\t" - "EMMS \n\t" // conversion of filtered row complete -#ifdef __PIC__ - "popl %%ebx \n\t" -#endif - - : "=d" (dummy_value_d), // 0 // output regs (dummy) - "=S" (dummy_value_S), // 1 - "=D" (dummy_value_D) // 2 - - : "0" (len), // edx // input regs - "1" (prev_row), // esi - "2" (row) // edi - - : "%eax", "%ebx", "%ecx" // clobber list (no input regs!) - -#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */ - , "%mm0", "%mm1", "%mm2", "%mm3" - , "%mm4", "%mm5", "%mm6", "%mm7" -#endif - ); - -} // end of png_read_filter_row_mmx_up() - -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - - - - -/*===========================================================================*/ -/* */ -/* P N G _ R E A D _ F I L T E R _ R O W */ -/* */ -/*===========================================================================*/ - - -/* Optimized png_read_filter_row routines */ - -void /* PRIVATE */ -png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep - row, png_bytep prev_row, int filter) -{ -#ifdef PNG_DEBUG - char filnm[10]; -#endif - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) -/* GRR: these are superseded by png_ptr->asm_flags: */ -#define UseMMX_sub 1 // GRR: converted 20000730 -#define UseMMX_up 1 // GRR: converted 20000729 -#define UseMMX_avg 1 // GRR: converted 20000828 (+ 16-bit bugfix 20000916) -#define UseMMX_paeth 1 // GRR: converted 20000828 - - if (_mmx_supported == 2) { - /* this should have happened in png_init_mmx_flags() already */ -#if !defined(PNG_1_0_X) - png_warning(png_ptr, "asm_flags may not have been initialized"); -#endif - png_mmx_support(); - } -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - -#ifdef PNG_DEBUG - png_debug(1, "in png_read_filter_row (pnggccrd.c)\n"); - switch (filter) - { - case 0: sprintf(filnm, "none"); - break; - case 1: sprintf(filnm, "sub-%s", -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK) -#if !defined(PNG_1_0_X) - (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB)? "MMX" : -#endif -#endif -"x86"); - break; - case 2: sprintf(filnm, "up-%s", -#ifdef PNG_ASSEMBLER_CODE_SUPPORTED -#if !defined(PNG_1_0_X) - (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP)? "MMX" : -#endif -#endif - "x86"); - break; - case 3: sprintf(filnm, "avg-%s", -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK) -#if !defined(PNG_1_0_X) - (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG)? "MMX" : -#endif -#endif - "x86"); - break; - case 4: sprintf(filnm, "Paeth-%s", -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK) -#if !defined(PNG_1_0_X) - (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH)? "MMX": -#endif -#endif -"x86"); - break; - default: sprintf(filnm, "unknw"); - break; - } - png_debug2(0, "row_number=%5ld, %5s, ", png_ptr->row_number, filnm); - png_debug1(0, "row=0x%08lx, ", (unsigned long)row); - png_debug2(0, "pixdepth=%2d, bytes=%d, ", (int)row_info->pixel_depth, - (int)((row_info->pixel_depth + 7) >> 3)); - png_debug1(0,"rowbytes=%8ld\n", row_info->rowbytes); -#endif /* PNG_DEBUG */ - - switch (filter) - { - case PNG_FILTER_VALUE_NONE: - break; - - case PNG_FILTER_VALUE_SUB: -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK) -#if !defined(PNG_1_0_X) - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB) && - (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) && - (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold)) -#else - if (_mmx_supported) -#endif - { - png_read_filter_row_mmx_sub(row_info, row); - } - else -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - { - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3; - png_bytep rp = row + bpp; - png_bytep lp = row; - - for (i = bpp; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + (int)(*lp++)) & 0xff); - rp++; - } - } /* end !UseMMX_sub */ - break; - - case PNG_FILTER_VALUE_UP: -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) -#if !defined(PNG_1_0_X) - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP) && - (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) && - (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold)) -#else - if (_mmx_supported) -#endif - { - png_read_filter_row_mmx_up(row_info, row, prev_row); - } - else -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - { - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - png_bytep rp = row; - png_bytep pp = prev_row; - - for (i = 0; i < istop; ++i) - { - *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff); - rp++; - } - } /* end !UseMMX_up */ - break; - - case PNG_FILTER_VALUE_AVG: -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK) -#if !defined(PNG_1_0_X) - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG) && - (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) && - (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold)) -#else - if (_mmx_supported) -#endif - { - png_read_filter_row_mmx_avg(row_info, row, prev_row); - } - else -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - { - png_uint_32 i; - png_bytep rp = row; - png_bytep pp = prev_row; - png_bytep lp = row; - png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3; - png_uint_32 istop = row_info->rowbytes - bpp; - - for (i = 0; i < bpp; i++) - { - *rp = (png_byte)(((int)(*rp) + - ((int)(*pp++) >> 1)) & 0xff); - rp++; - } - - for (i = 0; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + - ((int)(*pp++ + *lp++) >> 1)) & 0xff); - rp++; - } - } /* end !UseMMX_avg */ - break; - - case PNG_FILTER_VALUE_PAETH: -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK) -#if !defined(PNG_1_0_X) - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH) && - (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) && - (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold)) -#else - if (_mmx_supported) -#endif - { - png_read_filter_row_mmx_paeth(row_info, row, prev_row); - } - else -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - { - png_uint_32 i; - png_bytep rp = row; - png_bytep pp = prev_row; - png_bytep lp = row; - png_bytep cp = prev_row; - png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3; - png_uint_32 istop = row_info->rowbytes - bpp; - - for (i = 0; i < bpp; i++) - { - *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff); - rp++; - } - - for (i = 0; i < istop; i++) /* use leftover rp,pp */ - { - int a, b, c, pa, pb, pc, p; - - a = *lp++; - b = *pp++; - c = *cp++; - - p = b - c; - pc = a - c; - -#ifdef PNG_USE_ABS - pa = abs(p); - pb = abs(pc); - pc = abs(p + pc); -#else - pa = p < 0 ? -p : p; - pb = pc < 0 ? -pc : pc; - pc = (p + pc) < 0 ? -(p + pc) : p + pc; -#endif - - /* - if (pa <= pb && pa <= pc) - p = a; - else if (pb <= pc) - p = b; - else - p = c; - */ - - p = (pa <= pb && pa <= pc) ? a : (pb <= pc) ? b : c; - - *rp = (png_byte)(((int)(*rp) + p) & 0xff); - rp++; - } - } /* end !UseMMX_paeth */ - break; - - default: - png_warning(png_ptr, "Ignoring bad row-filter type"); - *row=0; - break; - } -} - -#endif /* PNG_HAVE_ASSEMBLER_READ_FILTER_ROW */ - - -/*===========================================================================*/ -/* */ -/* P N G _ M M X _ S U P P O R T */ -/* */ -/*===========================================================================*/ - -/* GRR NOTES: (1) the following code assumes 386 or better (pushfl/popfl) - * (2) all instructions compile with gcc 2.7.2.3 and later - * (3) the function is moved down here to prevent gcc from - * inlining it in multiple places and then barfing be- - * cause the ".NOT_SUPPORTED" label is multiply defined - * [is there a way to signal that a *single* function should - * not be inlined? is there a way to modify the label for - * each inlined instance, e.g., by appending _1, _2, etc.? - * maybe if don't use leading "." in label name? (nope...sigh)] - */ - -int PNGAPI -png_mmx_support(void) -{ -#if defined(PNG_MMX_CODE_SUPPORTED) - __asm__ __volatile__ ( - "pushl %%ebx \n\t" // ebx gets clobbered by CPUID instruction - "pushl %%ecx \n\t" // so does ecx... - "pushl %%edx \n\t" // ...and edx (but ecx & edx safe on Linux) -// ".byte 0x66 \n\t" // convert 16-bit pushf to 32-bit pushfd -// "pushf \n\t" // 16-bit pushf - "pushfl \n\t" // save Eflag to stack - "popl %%eax \n\t" // get Eflag from stack into eax - "movl %%eax, %%ecx \n\t" // make another copy of Eflag in ecx - "xorl $0x200000, %%eax \n\t" // toggle ID bit in Eflag (i.e., bit 21) - "pushl %%eax \n\t" // save modified Eflag back to stack -// ".byte 0x66 \n\t" // convert 16-bit popf to 32-bit popfd -// "popf \n\t" // 16-bit popf - "popfl \n\t" // restore modified value to Eflag reg - "pushfl \n\t" // save Eflag to stack - "popl %%eax \n\t" // get Eflag from stack - "pushl %%ecx \n\t" // save original Eflag to stack - "popfl \n\t" // restore original Eflag - "xorl %%ecx, %%eax \n\t" // compare new Eflag with original Eflag - "jz 0f \n\t" // if same, CPUID instr. is not supported - - "xorl %%eax, %%eax \n\t" // set eax to zero -// ".byte 0x0f, 0xa2 \n\t" // CPUID instruction (two-byte opcode) - "cpuid \n\t" // get the CPU identification info - "cmpl $1, %%eax \n\t" // make sure eax return non-zero value - "jl 0f \n\t" // if eax is zero, MMX is not supported - - "xorl %%eax, %%eax \n\t" // set eax to zero and... - "incl %%eax \n\t" // ...increment eax to 1. This pair is - // faster than the instruction "mov eax, 1" - "cpuid \n\t" // get the CPU identification info again - "andl $0x800000, %%edx \n\t" // mask out all bits but MMX bit (23) - "cmpl $0, %%edx \n\t" // 0 = MMX not supported - "jz 0f \n\t" // non-zero = yes, MMX IS supported - - "movl $1, %%eax \n\t" // set return value to 1 - "jmp 1f \n\t" // DONE: have MMX support - - "0: \n\t" // .NOT_SUPPORTED: target label for jump instructions - "movl $0, %%eax \n\t" // set return value to 0 - "1: \n\t" // .RETURN: target label for jump instructions - "movl %%eax, _mmx_supported \n\t" // save in global static variable, too - "popl %%edx \n\t" // restore edx - "popl %%ecx \n\t" // restore ecx - "popl %%ebx \n\t" // restore ebx - -// "ret \n\t" // DONE: no MMX support - // (fall through to standard C "ret") - - : // output list (none) - - : // any variables used on input (none) - - : "%eax" // clobber list -// , "%ebx", "%ecx", "%edx" // GRR: we handle these manually -// , "memory" // if write to a variable gcc thought was in a reg -// , "cc" // "condition codes" (flag bits) - ); -#else - _mmx_supported = 0; -#endif /* PNG_MMX_CODE_SUPPORTED */ - - return _mmx_supported; -} - - -#endif /* PNG_USE_PNGGCCRD */ diff --git a/collects/plot/src/all/pngget.c b/collects/plot/src/all/pngget.c deleted file mode 100644 index f7f5c6702b..0000000000 --- a/collects/plot/src/all/pngget.c +++ /dev/null @@ -1,927 +0,0 @@ - -/* pngget.c - retrieval of values from info struct - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -#define PNG_INTERNAL -#include "png.h" - -png_uint_32 PNGAPI -png_get_valid(png_structp png_ptr, png_infop info_ptr, png_uint_32 flag) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->valid & flag); - else - return(0); -} - -png_uint_32 PNGAPI -png_get_rowbytes(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->rowbytes); - else - return(0); -} - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -png_bytepp PNGAPI -png_get_rows(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->row_pointers); - else - return(0); -} -#endif - -#ifdef PNG_EASY_ACCESS_SUPPORTED -/* easy access to info, added in libpng-0.99 */ -png_uint_32 PNGAPI -png_get_image_width(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->width; - } - return (0); -} - -png_uint_32 PNGAPI -png_get_image_height(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->height; - } - return (0); -} - -png_byte PNGAPI -png_get_bit_depth(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->bit_depth; - } - return (0); -} - -png_byte PNGAPI -png_get_color_type(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->color_type; - } - return (0); -} - -png_byte PNGAPI -png_get_filter_type(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->filter_type; - } - return (0); -} - -png_byte PNGAPI -png_get_interlace_type(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->interlace_type; - } - return (0); -} - -png_byte PNGAPI -png_get_compression_type(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->compression_type; - } - return (0); -} - -png_uint_32 PNGAPI -png_get_x_pixels_per_meter(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_pHYs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_pHYs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_x_pixels_per_meter"); - if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER) - return (0); - else return (info_ptr->x_pixels_per_unit); - } -#else - return (0); -#endif - return (0); -} - -png_uint_32 PNGAPI -png_get_y_pixels_per_meter(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_pHYs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_pHYs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_y_pixels_per_meter"); - if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER) - return (0); - else return (info_ptr->y_pixels_per_unit); - } -#else - return (0); -#endif - return (0); -} - -png_uint_32 PNGAPI -png_get_pixels_per_meter(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_pHYs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_pHYs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_pixels_per_meter"); - if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER || - info_ptr->x_pixels_per_unit != info_ptr->y_pixels_per_unit) - return (0); - else return (info_ptr->x_pixels_per_unit); - } -#else - return (0); -#endif - return (0); -} - -#ifdef PNG_FLOATING_POINT_SUPPORTED -float PNGAPI -png_get_pixel_aspect_ratio(png_structp png_ptr, png_infop info_ptr) - { - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_pHYs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_pHYs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_aspect_ratio"); - if (info_ptr->x_pixels_per_unit == 0) - return ((float)0.0); - else - return ((float)((float)info_ptr->y_pixels_per_unit - /(float)info_ptr->x_pixels_per_unit)); - } -#else - return (0.0); -#endif - return ((float)0.0); -} -#endif - -png_int_32 PNGAPI -png_get_x_offset_microns(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_oFFs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_oFFs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_x_offset_microns"); - if(info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER) - return (0); - else return (info_ptr->x_offset); - } -#else - return (0); -#endif - return (0); -} - -png_int_32 PNGAPI -png_get_y_offset_microns(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_oFFs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_oFFs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_y_offset_microns"); - if(info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER) - return (0); - else return (info_ptr->y_offset); - } -#else - return (0); -#endif - return (0); -} - -png_int_32 PNGAPI -png_get_x_offset_pixels(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_oFFs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_oFFs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_x_offset_microns"); - if(info_ptr->offset_unit_type != PNG_OFFSET_PIXEL) - return (0); - else return (info_ptr->x_offset); - } -#else - return (0); -#endif - return (0); -} - -png_int_32 PNGAPI -png_get_y_offset_pixels(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_oFFs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_oFFs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_y_offset_microns"); - if(info_ptr->offset_unit_type != PNG_OFFSET_PIXEL) - return (0); - else return (info_ptr->y_offset); - } -#else - return (0); -#endif - return (0); -} - -#if defined(PNG_INCH_CONVERSIONS) && defined(PNG_FLOATING_POINT_SUPPORTED) -png_uint_32 PNGAPI -png_get_pixels_per_inch(png_structp png_ptr, png_infop info_ptr) -{ - return ((png_uint_32)((float)png_get_pixels_per_meter(png_ptr, info_ptr) - *.0254 +.5)); -} - -png_uint_32 PNGAPI -png_get_x_pixels_per_inch(png_structp png_ptr, png_infop info_ptr) -{ - return ((png_uint_32)((float)png_get_x_pixels_per_meter(png_ptr, info_ptr) - *.0254 +.5)); -} - -png_uint_32 PNGAPI -png_get_y_pixels_per_inch(png_structp png_ptr, png_infop info_ptr) -{ - return ((png_uint_32)((float)png_get_y_pixels_per_meter(png_ptr, info_ptr) - *.0254 +.5)); -} - -float PNGAPI -png_get_x_offset_inches(png_structp png_ptr, png_infop info_ptr) -{ - return ((float)png_get_x_offset_microns(png_ptr, info_ptr) - *.00003937); -} - -float PNGAPI -png_get_y_offset_inches(png_structp png_ptr, png_infop info_ptr) -{ - return ((float)png_get_y_offset_microns(png_ptr, info_ptr) - *.00003937); -} - -#if defined(PNG_pHYs_SUPPORTED) -png_uint_32 PNGAPI -png_get_pHYs_dpi(png_structp png_ptr, png_infop info_ptr, - png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type) -{ - png_uint_32 retval = 0; - - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) - { - png_debug1(1, "in %s retrieval function\n", "pHYs"); - if (res_x != NULL) - { - *res_x = info_ptr->x_pixels_per_unit; - retval |= PNG_INFO_pHYs; - } - if (res_y != NULL) - { - *res_y = info_ptr->y_pixels_per_unit; - retval |= PNG_INFO_pHYs; - } - if (unit_type != NULL) - { - *unit_type = (int)info_ptr->phys_unit_type; - retval |= PNG_INFO_pHYs; - if(*unit_type == 1) - { - if (res_x != NULL) *res_x = (png_uint_32)(*res_x * .0254 + .50); - if (res_y != NULL) *res_y = (png_uint_32)(*res_y * .0254 + .50); - } - } - } - return (retval); -} -#endif /* PNG_pHYs_SUPPORTED */ -#endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_SUPPORTED */ - -/* png_get_channels really belongs in here, too, but it's been around longer */ - -#endif /* PNG_EASY_ACCESS_SUPPORTED */ - -png_byte PNGAPI -png_get_channels(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->channels); - else - return (0); -} - -png_bytep PNGAPI -png_get_signature(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->signature); - else - return (NULL); -} - -#if defined(PNG_bKGD_SUPPORTED) -png_uint_32 PNGAPI -png_get_bKGD(png_structp png_ptr, png_infop info_ptr, - png_color_16p *background) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD) - && background != NULL) - { - png_debug1(1, "in %s retrieval function\n", "bKGD"); - *background = &(info_ptr->background); - return (PNG_INFO_bKGD); - } - return (0); -} -#endif - -#if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_cHRM(png_structp png_ptr, png_infop info_ptr, - double *white_x, double *white_y, double *red_x, double *red_y, - double *green_x, double *green_y, double *blue_x, double *blue_y) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM)) - { - png_debug1(1, "in %s retrieval function\n", "cHRM"); - if (white_x != NULL) - *white_x = (double)info_ptr->x_white; - if (white_y != NULL) - *white_y = (double)info_ptr->y_white; - if (red_x != NULL) - *red_x = (double)info_ptr->x_red; - if (red_y != NULL) - *red_y = (double)info_ptr->y_red; - if (green_x != NULL) - *green_x = (double)info_ptr->x_green; - if (green_y != NULL) - *green_y = (double)info_ptr->y_green; - if (blue_x != NULL) - *blue_x = (double)info_ptr->x_blue; - if (blue_y != NULL) - *blue_y = (double)info_ptr->y_blue; - return (PNG_INFO_cHRM); - } - return (0); -} -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_cHRM_fixed(png_structp png_ptr, png_infop info_ptr, - png_fixed_point *white_x, png_fixed_point *white_y, png_fixed_point *red_x, - png_fixed_point *red_y, png_fixed_point *green_x, png_fixed_point *green_y, - png_fixed_point *blue_x, png_fixed_point *blue_y) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM)) - { - png_debug1(1, "in %s retrieval function\n", "cHRM"); - if (white_x != NULL) - *white_x = info_ptr->int_x_white; - if (white_y != NULL) - *white_y = info_ptr->int_y_white; - if (red_x != NULL) - *red_x = info_ptr->int_x_red; - if (red_y != NULL) - *red_y = info_ptr->int_y_red; - if (green_x != NULL) - *green_x = info_ptr->int_x_green; - if (green_y != NULL) - *green_y = info_ptr->int_y_green; - if (blue_x != NULL) - *blue_x = info_ptr->int_x_blue; - if (blue_y != NULL) - *blue_y = info_ptr->int_y_blue; - return (PNG_INFO_cHRM); - } - return (0); -} -#endif -#endif - -#if defined(PNG_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_gAMA(png_structp png_ptr, png_infop info_ptr, double *file_gamma) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA) - && file_gamma != NULL) - { - png_debug1(1, "in %s retrieval function\n", "gAMA"); - *file_gamma = (double)info_ptr->gamma; - return (PNG_INFO_gAMA); - } - return (0); -} -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, - png_fixed_point *int_file_gamma) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA) - && int_file_gamma != NULL) - { - png_debug1(1, "in %s retrieval function\n", "gAMA"); - *int_file_gamma = info_ptr->int_gamma; - return (PNG_INFO_gAMA); - } - return (0); -} -#endif -#endif - -#if defined(PNG_sRGB_SUPPORTED) -png_uint_32 PNGAPI -png_get_sRGB(png_structp png_ptr, png_infop info_ptr, int *file_srgb_intent) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB) - && file_srgb_intent != NULL) - { - png_debug1(1, "in %s retrieval function\n", "sRGB"); - *file_srgb_intent = (int)info_ptr->srgb_intent; - return (PNG_INFO_sRGB); - } - return (0); -} -#endif - -#if defined(PNG_iCCP_SUPPORTED) -png_uint_32 PNGAPI -png_get_iCCP(png_structp png_ptr, png_infop info_ptr, - png_charpp name, int *compression_type, - png_charpp profile, png_uint_32 *proflen) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP) - && name != NULL && profile != NULL && proflen != NULL) - { - png_debug1(1, "in %s retrieval function\n", "iCCP"); - *name = info_ptr->iccp_name; - *profile = info_ptr->iccp_profile; - /* compression_type is a dummy so the API won't have to change - if we introduce multiple compression types later. */ - *proflen = (int)info_ptr->iccp_proflen; - *compression_type = (int)info_ptr->iccp_compression; - return (PNG_INFO_iCCP); - } - return (0); -} -#endif - -#if defined(PNG_sPLT_SUPPORTED) -png_uint_32 PNGAPI -png_get_sPLT(png_structp png_ptr, png_infop info_ptr, - png_sPLT_tpp spalettes) -{ - if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL) - *spalettes = info_ptr->splt_palettes; - return ((png_uint_32)info_ptr->splt_palettes_num); -} -#endif - -#if defined(PNG_hIST_SUPPORTED) -png_uint_32 PNGAPI -png_get_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p *hist) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST) - && hist != NULL) - { - png_debug1(1, "in %s retrieval function\n", "hIST"); - *hist = info_ptr->hist; - return (PNG_INFO_hIST); - } - return (0); -} -#endif - -png_uint_32 PNGAPI -png_get_IHDR(png_structp png_ptr, png_infop info_ptr, - png_uint_32 *width, png_uint_32 *height, int *bit_depth, - int *color_type, int *interlace_type, int *compression_type, - int *filter_type) - -{ - if (png_ptr != NULL && info_ptr != NULL && width != NULL && height != NULL && - bit_depth != NULL && color_type != NULL) - { - int pixel_depth, channels; - png_uint_32 rowbytes_per_pixel; - - png_debug1(1, "in %s retrieval function\n", "IHDR"); - *width = info_ptr->width; - *height = info_ptr->height; - *bit_depth = info_ptr->bit_depth; - if (info_ptr->bit_depth < 1 || info_ptr->bit_depth > 16) - png_error(png_ptr, "Invalid bit depth"); - *color_type = info_ptr->color_type; - if (info_ptr->color_type > 6) - png_error(png_ptr, "Invalid color type"); - if (compression_type != NULL) - *compression_type = info_ptr->compression_type; - if (filter_type != NULL) - *filter_type = info_ptr->filter_type; - if (interlace_type != NULL) - *interlace_type = info_ptr->interlace_type; - - /* check for potential overflow of rowbytes */ - if (*color_type == PNG_COLOR_TYPE_PALETTE) - channels = 1; - else if (*color_type & PNG_COLOR_MASK_COLOR) - channels = 3; - else - channels = 1; - if (*color_type & PNG_COLOR_MASK_ALPHA) - channels++; - pixel_depth = *bit_depth * channels; - rowbytes_per_pixel = (pixel_depth + 7) >> 3; - if (width == 0 || *width > PNG_MAX_UINT) - png_error(png_ptr, "Invalid image width"); - if (height == 0 || *height > PNG_MAX_UINT) - png_error(png_ptr, "Invalid image height"); - if (*width > PNG_MAX_UINT/rowbytes_per_pixel - 64) - { - png_error(png_ptr, - "Width too large for libpng to process image data."); - } - return (1); - } - return (0); -} - -#if defined(PNG_oFFs_SUPPORTED) -png_uint_32 PNGAPI -png_get_oFFs(png_structp png_ptr, png_infop info_ptr, - png_int_32 *offset_x, png_int_32 *offset_y, int *unit_type) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs) - && offset_x != NULL && offset_y != NULL && unit_type != NULL) - { - png_debug1(1, "in %s retrieval function\n", "oFFs"); - *offset_x = info_ptr->x_offset; - *offset_y = info_ptr->y_offset; - *unit_type = (int)info_ptr->offset_unit_type; - return (PNG_INFO_oFFs); - } - return (0); -} -#endif - -#if defined(PNG_pCAL_SUPPORTED) -png_uint_32 PNGAPI -png_get_pCAL(png_structp png_ptr, png_infop info_ptr, - png_charp *purpose, png_int_32 *X0, png_int_32 *X1, int *type, int *nparams, - png_charp *units, png_charpp *params) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL) - && purpose != NULL && X0 != NULL && X1 != NULL && type != NULL && - nparams != NULL && units != NULL && params != NULL) - { - png_debug1(1, "in %s retrieval function\n", "pCAL"); - *purpose = info_ptr->pcal_purpose; - *X0 = info_ptr->pcal_X0; - *X1 = info_ptr->pcal_X1; - *type = (int)info_ptr->pcal_type; - *nparams = (int)info_ptr->pcal_nparams; - *units = info_ptr->pcal_units; - *params = info_ptr->pcal_params; - return (PNG_INFO_pCAL); - } - return (0); -} -#endif - -#if defined(PNG_sCAL_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_sCAL(png_structp png_ptr, png_infop info_ptr, - int *unit, double *width, double *height) -{ - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->valid & PNG_INFO_sCAL)) - { - *unit = info_ptr->scal_unit; - *width = info_ptr->scal_pixel_width; - *height = info_ptr->scal_pixel_height; - return (PNG_INFO_sCAL); - } - return(0); -} -#else -#ifdef PNG_FIXED_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_sCAL_s(png_structp png_ptr, png_infop info_ptr, - int *unit, png_charpp width, png_charpp height) -{ - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->valid & PNG_INFO_sCAL)) - { - *unit = info_ptr->scal_unit; - *width = info_ptr->scal_s_width; - *height = info_ptr->scal_s_height; - return (PNG_INFO_sCAL); - } - return(0); -} -#endif -#endif -#endif - -#if defined(PNG_pHYs_SUPPORTED) -png_uint_32 PNGAPI -png_get_pHYs(png_structp png_ptr, png_infop info_ptr, - png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type) -{ - png_uint_32 retval = 0; - - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->valid & PNG_INFO_pHYs)) - { - png_debug1(1, "in %s retrieval function\n", "pHYs"); - if (res_x != NULL) - { - *res_x = info_ptr->x_pixels_per_unit; - retval |= PNG_INFO_pHYs; - } - if (res_y != NULL) - { - *res_y = info_ptr->y_pixels_per_unit; - retval |= PNG_INFO_pHYs; - } - if (unit_type != NULL) - { - *unit_type = (int)info_ptr->phys_unit_type; - retval |= PNG_INFO_pHYs; - } - } - return (retval); -} -#endif - -png_uint_32 PNGAPI -png_get_PLTE(png_structp png_ptr, png_infop info_ptr, png_colorp *palette, - int *num_palette) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_PLTE) - && palette != NULL) - { - png_debug1(1, "in %s retrieval function\n", "PLTE"); - *palette = info_ptr->palette; - *num_palette = info_ptr->num_palette; - png_debug1(3, "num_palette = %d\n", *num_palette); - return (PNG_INFO_PLTE); - } - return (0); -} - -#if defined(PNG_sBIT_SUPPORTED) -png_uint_32 PNGAPI -png_get_sBIT(png_structp png_ptr, png_infop info_ptr, png_color_8p *sig_bit) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT) - && sig_bit != NULL) - { - png_debug1(1, "in %s retrieval function\n", "sBIT"); - *sig_bit = &(info_ptr->sig_bit); - return (PNG_INFO_sBIT); - } - return (0); -} -#endif - -#if defined(PNG_TEXT_SUPPORTED) -png_uint_32 PNGAPI -png_get_text(png_structp png_ptr, png_infop info_ptr, png_textp *text_ptr, - int *num_text) -{ - if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0) - { - png_debug1(1, "in %s retrieval function\n", - (png_ptr->chunk_name[0] == '\0' ? "text" - : (png_const_charp)png_ptr->chunk_name)); - if (text_ptr != NULL) - *text_ptr = info_ptr->text; - if (num_text != NULL) - *num_text = info_ptr->num_text; - return ((png_uint_32)info_ptr->num_text); - } - if (num_text != NULL) - *num_text = 0; - return(0); -} -#endif - -#if defined(PNG_tIME_SUPPORTED) -png_uint_32 PNGAPI -png_get_tIME(png_structp png_ptr, png_infop info_ptr, png_timep *mod_time) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME) - && mod_time != NULL) - { - png_debug1(1, "in %s retrieval function\n", "tIME"); - *mod_time = &(info_ptr->mod_time); - return (PNG_INFO_tIME); - } - return (0); -} -#endif - -#if defined(PNG_tRNS_SUPPORTED) -png_uint_32 PNGAPI -png_get_tRNS(png_structp png_ptr, png_infop info_ptr, - png_bytep *trans, int *num_trans, png_color_16p *trans_values) -{ - png_uint_32 retval = 0; - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS)) - { - png_debug1(1, "in %s retrieval function\n", "tRNS"); - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (trans != NULL) - { - *trans = info_ptr->trans; - retval |= PNG_INFO_tRNS; - } - if (trans_values != NULL) - *trans_values = &(info_ptr->trans_values); - } - else /* if (info_ptr->color_type != PNG_COLOR_TYPE_PALETTE) */ - { - if (trans_values != NULL) - { - *trans_values = &(info_ptr->trans_values); - retval |= PNG_INFO_tRNS; - } - if(trans != NULL) - *trans = NULL; - } - if(num_trans != NULL) - { - *num_trans = info_ptr->num_trans; - retval |= PNG_INFO_tRNS; - } - } - return (retval); -} -#endif - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -png_uint_32 PNGAPI -png_get_unknown_chunks(png_structp png_ptr, png_infop info_ptr, - png_unknown_chunkpp unknowns) -{ - if (png_ptr != NULL && info_ptr != NULL && unknowns != NULL) - *unknowns = info_ptr->unknown_chunks; - return ((png_uint_32)info_ptr->unknown_chunks_num); -} -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) -png_byte PNGAPI -png_get_rgb_to_gray_status (png_structp png_ptr) -{ - return (png_byte)(png_ptr? png_ptr->rgb_to_gray_status : 0); -} -#endif - -#if defined(PNG_USER_CHUNKS_SUPPORTED) -png_voidp PNGAPI -png_get_user_chunk_ptr(png_structp png_ptr) -{ - return (png_ptr? png_ptr->user_chunk_ptr : NULL); -} -#endif - - -png_uint_32 PNGAPI -png_get_compression_buffer_size(png_structp png_ptr) -{ - return (png_uint_32)(png_ptr? png_ptr->zbuf_size : 0L); -} - - -#ifndef PNG_1_0_X -#ifdef PNG_ASSEMBLER_CODE_SUPPORTED -/* this function was added to libpng 1.2.0 and should exist by default */ -png_uint_32 PNGAPI -png_get_asm_flags (png_structp png_ptr) -{ - return (png_uint_32)(png_ptr? png_ptr->asm_flags : 0L); -} - -/* this function was added to libpng 1.2.0 and should exist by default */ -png_uint_32 PNGAPI -png_get_asm_flagmask (int flag_select) -{ - png_uint_32 settable_asm_flags = 0; - - if (flag_select & PNG_SELECT_READ) - settable_asm_flags |= - PNG_ASM_FLAG_MMX_READ_COMBINE_ROW | - PNG_ASM_FLAG_MMX_READ_INTERLACE | - PNG_ASM_FLAG_MMX_READ_FILTER_SUB | - PNG_ASM_FLAG_MMX_READ_FILTER_UP | - PNG_ASM_FLAG_MMX_READ_FILTER_AVG | - PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ; - /* no non-MMX flags yet */ - -#if 0 - /* GRR: no write-flags yet, either, but someday... */ - if (flag_select & PNG_SELECT_WRITE) - settable_asm_flags |= - PNG_ASM_FLAG_MMX_WRITE_ [whatever] ; -#endif /* 0 */ - - return settable_asm_flags; /* _theoretically_ settable capabilities only */ -} -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) - /* GRR: could add this: && defined(PNG_MMX_CODE_SUPPORTED) */ -/* this function was added to libpng 1.2.0 */ -png_uint_32 PNGAPI -png_get_mmx_flagmask (int flag_select, int *compilerID) -{ - png_uint_32 settable_mmx_flags = 0; - - if (flag_select & PNG_SELECT_READ) - settable_mmx_flags |= - PNG_ASM_FLAG_MMX_READ_COMBINE_ROW | - PNG_ASM_FLAG_MMX_READ_INTERLACE | - PNG_ASM_FLAG_MMX_READ_FILTER_SUB | - PNG_ASM_FLAG_MMX_READ_FILTER_UP | - PNG_ASM_FLAG_MMX_READ_FILTER_AVG | - PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ; -#if 0 - /* GRR: no MMX write support yet, but someday... */ - if (flag_select & PNG_SELECT_WRITE) - settable_mmx_flags |= - PNG_ASM_FLAG_MMX_WRITE_ [whatever] ; -#endif /* 0 */ - - if (compilerID != NULL) { -#ifdef PNG_USE_PNGVCRD - *compilerID = 1; /* MSVC */ -#else -#ifdef PNG_USE_PNGGCCRD - *compilerID = 2; /* gcc/gas */ -#else - *compilerID = -1; /* unknown (i.e., no asm/MMX code compiled) */ -#endif -#endif - } - - return settable_mmx_flags; /* _theoretically_ settable capabilities only */ -} - -/* this function was added to libpng 1.2.0 */ -png_byte PNGAPI -png_get_mmx_bitdepth_threshold (png_structp png_ptr) -{ - return (png_byte)(png_ptr? png_ptr->mmx_bitdepth_threshold : 0); -} - -/* this function was added to libpng 1.2.0 */ -png_uint_32 PNGAPI -png_get_mmx_rowbytes_threshold (png_structp png_ptr) -{ - return (png_uint_32)(png_ptr? png_ptr->mmx_rowbytes_threshold : 0L); -} -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ -#endif /* PNG_1_0_X */ diff --git a/collects/plot/src/all/pngmem.c b/collects/plot/src/all/pngmem.c deleted file mode 100644 index 66eec0b09f..0000000000 --- a/collects/plot/src/all/pngmem.c +++ /dev/null @@ -1,566 +0,0 @@ - -/* pngmem.c - stub functions for memory allocation - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file provides a location for all memory allocation. Users who - * need special memory handling are expected to supply replacement - * functions for png_malloc() and png_free(), and to use - * png_create_read_struct_2() and png_create_write_struct_2() to - * identify the replacement functions. - */ - -#define PNG_INTERNAL -#include "png.h" - -/* Borland DOS special memory handler */ -#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__) -/* if you change this, be sure to change the one in png.h also */ - -/* Allocate memory for a png_struct. The malloc and memset can be replaced - by a single call to calloc() if this is thought to improve performance. */ -png_voidp /* PRIVATE */ -png_create_struct(int type) -{ -#ifdef PNG_USER_MEM_SUPPORTED - return (png_create_struct_2(type, png_malloc_ptr_NULL, png_voidp_NULL)); -} - -/* Alternate version of png_create_struct, for use with user-defined malloc. */ -png_voidp /* PRIVATE */ -png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr) -{ -#endif /* PNG_USER_MEM_SUPPORTED */ - png_size_t size; - png_voidp struct_ptr; - - if (type == PNG_STRUCT_INFO) - size = sizeof(png_info); - else if (type == PNG_STRUCT_PNG) - size = sizeof(png_struct); - else - return (png_get_copyright()); - -#ifdef PNG_USER_MEM_SUPPORTED - if(malloc_fn != NULL) - { - png_struct dummy_struct; - png_structp png_ptr = &dummy_struct; - png_ptr->mem_ptr=mem_ptr; - struct_ptr = (*(malloc_fn))(png_ptr, (png_uint_32)size); - } - else -#endif /* PNG_USER_MEM_SUPPORTED */ - struct_ptr = (png_voidp)farmalloc(size)); - if (struct_ptr != NULL) - png_memset(struct_ptr, 0, size); - return (struct_ptr); -} - -/* Free memory allocated by a png_create_struct() call */ -void /* PRIVATE */ -png_destroy_struct(png_voidp struct_ptr) -{ -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2(struct_ptr, png_free_ptr_NULL, png_voidp_NULL); -} - -/* Free memory allocated by a png_create_struct() call */ -void /* PRIVATE */ -png_destroy_struct_2(png_voidp struct_ptr, png_free_ptr free_fn, - png_voidp mem_ptr) -{ -#endif - if (struct_ptr != NULL) - { -#ifdef PNG_USER_MEM_SUPPORTED - if(free_fn != NULL) - { - png_struct dummy_struct; - png_structp png_ptr = &dummy_struct; - png_ptr->mem_ptr=mem_ptr; - (*(free_fn))(png_ptr, struct_ptr); - return; - } -#endif /* PNG_USER_MEM_SUPPORTED */ - farfree (struct_ptr); - } -} - -/* Allocate memory. For reasonable files, size should never exceed - * 64K. However, zlib may allocate more then 64K if you don't tell - * it not to. See zconf.h and png.h for more information. zlib does - * need to allocate exactly 64K, so whatever you call here must - * have the ability to do that. - * - * Borland seems to have a problem in DOS mode for exactly 64K. - * It gives you a segment with an offset of 8 (perhaps to store its - * memory stuff). zlib doesn't like this at all, so we have to - * detect and deal with it. This code should not be needed in - * Windows or OS/2 modes, and only in 16 bit mode. This code has - * been updated by Alexander Lehmann for version 0.89 to waste less - * memory. - * - * Note that we can't use png_size_t for the "size" declaration, - * since on some systems a png_size_t is a 16-bit quantity, and as a - * result, we would be truncating potentially larger memory requests - * (which should cause a fatal error) and introducing major problems. - */ - -png_voidp PNGAPI -png_malloc(png_structp png_ptr, png_uint_32 size) -{ - png_voidp ret; - - if (png_ptr == NULL || size == 0) - return (NULL); - -#ifdef PNG_USER_MEM_SUPPORTED - if(png_ptr->malloc_fn != NULL) - { - ret = ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, (png_size_t)size)); - if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out of memory!"); - return (ret); - } - else - return png_malloc_default(png_ptr, size); -} - -png_voidp PNGAPI -png_malloc_default(png_structp png_ptr, png_uint_32 size) -{ - png_voidp ret; -#endif /* PNG_USER_MEM_SUPPORTED */ - -#ifdef PNG_MAX_MALLOC_64K - if (size > (png_uint_32)65536L) - png_error(png_ptr, "Cannot Allocate > 64K"); -#endif - - if (size == (png_uint_32)65536L) - { - if (png_ptr->offset_table == NULL) - { - /* try to see if we need to do any of this fancy stuff */ - ret = farmalloc(size); - if (ret == NULL || ((png_size_t)ret & 0xffff)) - { - int num_blocks; - png_uint_32 total_size; - png_bytep table; - int i; - png_byte huge * hptr; - - if (ret != NULL) - { - farfree(ret); - ret = NULL; - } - - if(png_ptr->zlib_window_bits > 14) - num_blocks = (int)(1 << (png_ptr->zlib_window_bits - 14)); - else - num_blocks = 1; - if (png_ptr->zlib_mem_level >= 7) - num_blocks += (int)(1 << (png_ptr->zlib_mem_level - 7)); - else - num_blocks++; - - total_size = ((png_uint_32)65536L) * (png_uint_32)num_blocks+16; - - table = farmalloc(total_size); - - if (table == NULL) - { - if (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out Of Memory."); /* Note "O" and "M" */ - else - png_warning(png_ptr, "Out Of Memory."); - return (NULL); - } - - if ((png_size_t)table & 0xfff0) - { - if (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, - "Farmalloc didn't return normalized pointer"); - else - png_warning(png_ptr, - "Farmalloc didn't return normalized pointer"); - return (NULL); - } - - png_ptr->offset_table = table; - png_ptr->offset_table_ptr = farmalloc(num_blocks * - sizeof (png_bytep)); - - if (png_ptr->offset_table_ptr == NULL) - { - if (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out Of memory."); /* Note "O" and "M" */ - else - png_warning(png_ptr, "Out Of memory."); - return (NULL); - } - - hptr = (png_byte huge *)table; - if ((png_size_t)hptr & 0xf) - { - hptr = (png_byte huge *)((long)(hptr) & 0xfffffff0L); - hptr = hptr + 16L; /* "hptr += 16L" fails on Turbo C++ 3.0 */ - } - for (i = 0; i < num_blocks; i++) - { - png_ptr->offset_table_ptr[i] = (png_bytep)hptr; - hptr = hptr + (png_uint_32)65536L; /* "+=" fails on TC++3.0 */ - } - - png_ptr->offset_table_number = num_blocks; - png_ptr->offset_table_count = 0; - png_ptr->offset_table_count_free = 0; - } - } - - if (png_ptr->offset_table_count >= png_ptr->offset_table_number) - { - if (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out of Memory."); /* Note "o" and "M" */ - else - png_warning(png_ptr, "Out of Memory."); - return (NULL); - } - - ret = png_ptr->offset_table_ptr[png_ptr->offset_table_count++]; - } - else - ret = farmalloc(size); - - if (ret == NULL) - { - if (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out of memory."); /* Note "o" and "m" */ - else - png_warning(png_ptr, "Out of memory."); /* Note "o" and "m" */ - } - - return (ret); -} - -/* free a pointer allocated by png_malloc(). In the default - configuration, png_ptr is not used, but is passed in case it - is needed. If ptr is NULL, return without taking any action. */ -void PNGAPI -png_free(png_structp png_ptr, png_voidp ptr) -{ - if (png_ptr == NULL || ptr == NULL) - return; - -#ifdef PNG_USER_MEM_SUPPORTED - if (png_ptr->free_fn != NULL) - { - (*(png_ptr->free_fn))(png_ptr, ptr); - return; - } - else png_free_default(png_ptr, ptr); -} - -void PNGAPI -png_free_default(png_structp png_ptr, png_voidp ptr) -{ -#endif /* PNG_USER_MEM_SUPPORTED */ - - if (png_ptr->offset_table != NULL) - { - int i; - - for (i = 0; i < png_ptr->offset_table_count; i++) - { - if (ptr == png_ptr->offset_table_ptr[i]) - { - ptr = NULL; - png_ptr->offset_table_count_free++; - break; - } - } - if (png_ptr->offset_table_count_free == png_ptr->offset_table_count) - { - farfree(png_ptr->offset_table); - farfree(png_ptr->offset_table_ptr); - png_ptr->offset_table = NULL; - png_ptr->offset_table_ptr = NULL; - } - } - - if (ptr != NULL) - { - farfree(ptr); - } -} - -#else /* Not the Borland DOS special memory handler */ - -/* Allocate memory for a png_struct or a png_info. The malloc and - memset can be replaced by a single call to calloc() if this is thought - to improve performance noticably. */ -png_voidp /* PRIVATE */ -png_create_struct(int type) -{ -#ifdef PNG_USER_MEM_SUPPORTED - return (png_create_struct_2(type, png_malloc_ptr_NULL, png_voidp_NULL)); -} - -/* Allocate memory for a png_struct or a png_info. The malloc and - memset can be replaced by a single call to calloc() if this is thought - to improve performance noticably. */ -png_voidp /* PRIVATE */ -png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr) -{ -#endif /* PNG_USER_MEM_SUPPORTED */ - png_size_t size; - png_voidp struct_ptr; - - if (type == PNG_STRUCT_INFO) - size = sizeof(png_info); - else if (type == PNG_STRUCT_PNG) - size = sizeof(png_struct); - else - return (NULL); - -#ifdef PNG_USER_MEM_SUPPORTED - if(malloc_fn != NULL) - { - png_struct dummy_struct; - png_structp png_ptr = &dummy_struct; - png_ptr->mem_ptr=mem_ptr; - struct_ptr = (*(malloc_fn))(png_ptr, size); - if (struct_ptr != NULL) - png_memset(struct_ptr, 0, size); - return (struct_ptr); - } -#endif /* PNG_USER_MEM_SUPPORTED */ - -#if defined(__TURBOC__) && !defined(__FLAT__) - if ((struct_ptr = (png_voidp)farmalloc(size)) != NULL) -#else -# if defined(_MSC_VER) && defined(MAXSEG_64K) - if ((struct_ptr = (png_voidp)halloc(size,1)) != NULL) -# else - if ((struct_ptr = (png_voidp)malloc(size)) != NULL) -# endif -#endif - { - png_memset(struct_ptr, 0, size); - } - - return (struct_ptr); -} - - -/* Free memory allocated by a png_create_struct() call */ -void /* PRIVATE */ -png_destroy_struct(png_voidp struct_ptr) -{ -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2(struct_ptr, png_free_ptr_NULL, png_voidp_NULL); -} - -/* Free memory allocated by a png_create_struct() call */ -void /* PRIVATE */ -png_destroy_struct_2(png_voidp struct_ptr, png_free_ptr free_fn, - png_voidp mem_ptr) -{ -#endif /* PNG_USER_MEM_SUPPORTED */ - if (struct_ptr != NULL) - { -#ifdef PNG_USER_MEM_SUPPORTED - if(free_fn != NULL) - { - png_struct dummy_struct; - png_structp png_ptr = &dummy_struct; - png_ptr->mem_ptr=mem_ptr; - (*(free_fn))(png_ptr, struct_ptr); - return; - } -#endif /* PNG_USER_MEM_SUPPORTED */ -#if defined(__TURBOC__) && !defined(__FLAT__) - farfree(struct_ptr); -#else -# if defined(_MSC_VER) && defined(MAXSEG_64K) - hfree(struct_ptr); -# else - free(struct_ptr); -# endif -#endif - } -} - -/* Allocate memory. For reasonable files, size should never exceed - 64K. However, zlib may allocate more then 64K if you don't tell - it not to. See zconf.h and png.h for more information. zlib does - need to allocate exactly 64K, so whatever you call here must - have the ability to do that. */ - -png_voidp PNGAPI -png_malloc(png_structp png_ptr, png_uint_32 size) -{ - png_voidp ret; - - if (png_ptr == NULL || size == 0) - return (NULL); - -#ifdef PNG_USER_MEM_SUPPORTED - if(png_ptr->malloc_fn != NULL) - { - ret = ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, (png_size_t)size)); - if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out of Memory!"); - return (ret); - } - else - return (png_malloc_default(png_ptr, size)); -} - -png_voidp PNGAPI -png_malloc_default(png_structp png_ptr, png_uint_32 size) -{ - png_voidp ret; -#endif /* PNG_USER_MEM_SUPPORTED */ - -#ifdef PNG_MAX_MALLOC_64K - if (size > (png_uint_32)65536L) - { - if(png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Cannot Allocate > 64K"); - else - return NULL; - } -#endif - -#if defined(__TURBOC__) && !defined(__FLAT__) - ret = farmalloc(size); -#else -# if defined(_MSC_VER) && defined(MAXSEG_64K) - ret = halloc(size, 1); -# else - ret = malloc((size_t)size); -# endif -#endif - - if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out of Memory"); - - return (ret); -} - -/* Free a pointer allocated by png_malloc(). If ptr is NULL, return - without taking any action. */ -void PNGAPI -png_free(png_structp png_ptr, png_voidp ptr) -{ - if (png_ptr == NULL || ptr == NULL) - return; - -#ifdef PNG_USER_MEM_SUPPORTED - if (png_ptr->free_fn != NULL) - { - (*(png_ptr->free_fn))(png_ptr, ptr); - return; - } - else png_free_default(png_ptr, ptr); -} -void PNGAPI -png_free_default(png_structp png_ptr, png_voidp ptr) -{ - if (png_ptr == NULL || ptr == NULL) - return; - -#endif /* PNG_USER_MEM_SUPPORTED */ - -#if defined(__TURBOC__) && !defined(__FLAT__) - farfree(ptr); -#else -# if defined(_MSC_VER) && defined(MAXSEG_64K) - hfree(ptr); -# else - free(ptr); -# endif -#endif -} - -#endif /* Not Borland DOS special memory handler */ - -#if defined(PNG_1_0_X) -# define png_malloc_warn png_malloc -#else -/* This function was added at libpng version 1.2.3. The png_malloc_warn() - * function will issue a png_warning and return NULL instead of issuing a - * png_error, if it fails to allocate the requested memory. - */ -png_voidp PNGAPI -png_malloc_warn(png_structp png_ptr, png_uint_32 size) -{ - png_voidp ptr; - png_uint_32 save_flags=png_ptr->flags; - - png_ptr->flags|=PNG_FLAG_MALLOC_NULL_MEM_OK; - ptr = (png_voidp)png_malloc((png_structp)png_ptr, size); - png_ptr->flags=save_flags; - return(ptr); -} -#endif - -png_voidp PNGAPI -png_memcpy_check (png_structp png_ptr, png_voidp s1, png_voidp s2, - png_uint_32 length) -{ - png_size_t size; - - size = (png_size_t)length; - if ((png_uint_32)size != length) - png_error(png_ptr,"Overflow in png_memcpy_check."); - - return(png_memcpy (s1, s2, size)); -} - -png_voidp PNGAPI -png_memset_check (png_structp png_ptr, png_voidp s1, int value, - png_uint_32 length) -{ - png_size_t size; - - size = (png_size_t)length; - if ((png_uint_32)size != length) - png_error(png_ptr,"Overflow in png_memset_check."); - - return (png_memset (s1, value, size)); - -} - -#ifdef PNG_USER_MEM_SUPPORTED -/* This function is called when the application wants to use another method - * of allocating and freeing memory. - */ -void PNGAPI -png_set_mem_fn(png_structp png_ptr, png_voidp mem_ptr, png_malloc_ptr - malloc_fn, png_free_ptr free_fn) -{ - png_ptr->mem_ptr = mem_ptr; - png_ptr->malloc_fn = malloc_fn; - png_ptr->free_fn = free_fn; -} - -/* This function returns a pointer to the mem_ptr associated with the user - * functions. The application should free any memory associated with this - * pointer before png_write_destroy and png_read_destroy are called. - */ -png_voidp PNGAPI -png_get_mem_ptr(png_structp png_ptr) -{ - return ((png_voidp)png_ptr->mem_ptr); -} -#endif /* PNG_USER_MEM_SUPPORTED */ diff --git a/collects/plot/src/all/pngpread.c b/collects/plot/src/all/pngpread.c deleted file mode 100644 index 9f924c34cc..0000000000 --- a/collects/plot/src/all/pngpread.c +++ /dev/null @@ -1,1543 +0,0 @@ - -/* pngpread.c - read a png file in push mode - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -#define PNG_INTERNAL -#include "png.h" - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED - -/* push model modes */ -#define PNG_READ_SIG_MODE 0 -#define PNG_READ_CHUNK_MODE 1 -#define PNG_READ_IDAT_MODE 2 -#define PNG_SKIP_MODE 3 -#define PNG_READ_tEXt_MODE 4 -#define PNG_READ_zTXt_MODE 5 -#define PNG_READ_DONE_MODE 6 -#define PNG_READ_iTXt_MODE 7 -#define PNG_ERROR_MODE 8 - -void PNGAPI -png_process_data(png_structp png_ptr, png_infop info_ptr, - png_bytep buffer, png_size_t buffer_size) -{ - png_push_restore_buffer(png_ptr, buffer, buffer_size); - - while (png_ptr->buffer_size) - { - png_process_some_data(png_ptr, info_ptr); - } -} - -/* What we do with the incoming data depends on what we were previously - * doing before we ran out of data... - */ -void /* PRIVATE */ -png_process_some_data(png_structp png_ptr, png_infop info_ptr) -{ - switch (png_ptr->process_mode) - { - case PNG_READ_SIG_MODE: - { - png_push_read_sig(png_ptr, info_ptr); - break; - } - case PNG_READ_CHUNK_MODE: - { - png_push_read_chunk(png_ptr, info_ptr); - break; - } - case PNG_READ_IDAT_MODE: - { - png_push_read_IDAT(png_ptr); - break; - } -#if defined(PNG_READ_tEXt_SUPPORTED) - case PNG_READ_tEXt_MODE: - { - png_push_read_tEXt(png_ptr, info_ptr); - break; - } -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - case PNG_READ_zTXt_MODE: - { - png_push_read_zTXt(png_ptr, info_ptr); - break; - } -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - case PNG_READ_iTXt_MODE: - { - png_push_read_iTXt(png_ptr, info_ptr); - break; - } -#endif - case PNG_SKIP_MODE: - { - png_push_crc_finish(png_ptr); - break; - } - default: - { - png_ptr->buffer_size = 0; - break; - } - } -} - -/* Read any remaining signature bytes from the stream and compare them with - * the correct PNG signature. It is possible that this routine is called - * with bytes already read from the signature, either because they have been - * checked by the calling application, or because of multiple calls to this - * routine. - */ -void /* PRIVATE */ -png_push_read_sig(png_structp png_ptr, png_infop info_ptr) -{ - png_size_t num_checked = png_ptr->sig_bytes, - num_to_check = 8 - num_checked; - - if (png_ptr->buffer_size < num_to_check) - { - num_to_check = png_ptr->buffer_size; - } - - png_push_fill_buffer(png_ptr, &(info_ptr->signature[num_checked]), - num_to_check); - png_ptr->sig_bytes = (png_byte)(png_ptr->sig_bytes+num_to_check); - - if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check)) - { - if (num_checked < 4 && - png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4)) - png_error(png_ptr, "Not a PNG file"); - else - png_error(png_ptr, "PNG file corrupted by ASCII conversion"); - } - else - { - if (png_ptr->sig_bytes >= 8) - { - png_ptr->process_mode = PNG_READ_CHUNK_MODE; - } - } -} - -void /* PRIVATE */ -png_push_read_chunk(png_structp png_ptr, png_infop info_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IHDR; - PNG_IDAT; - PNG_IEND; - PNG_PLTE; -#if defined(PNG_READ_bKGD_SUPPORTED) - PNG_bKGD; -#endif -#if defined(PNG_READ_cHRM_SUPPORTED) - PNG_cHRM; -#endif -#if defined(PNG_READ_gAMA_SUPPORTED) - PNG_gAMA; -#endif -#if defined(PNG_READ_hIST_SUPPORTED) - PNG_hIST; -#endif -#if defined(PNG_READ_iCCP_SUPPORTED) - PNG_iCCP; -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - PNG_iTXt; -#endif -#if defined(PNG_READ_oFFs_SUPPORTED) - PNG_oFFs; -#endif -#if defined(PNG_READ_pCAL_SUPPORTED) - PNG_pCAL; -#endif -#if defined(PNG_READ_pHYs_SUPPORTED) - PNG_pHYs; -#endif -#if defined(PNG_READ_sBIT_SUPPORTED) - PNG_sBIT; -#endif -#if defined(PNG_READ_sCAL_SUPPORTED) - PNG_sCAL; -#endif -#if defined(PNG_READ_sRGB_SUPPORTED) - PNG_sRGB; -#endif -#if defined(PNG_READ_sPLT_SUPPORTED) - PNG_sPLT; -#endif -#if defined(PNG_READ_tEXt_SUPPORTED) - PNG_tEXt; -#endif -#if defined(PNG_READ_tIME_SUPPORTED) - PNG_tIME; -#endif -#if defined(PNG_READ_tRNS_SUPPORTED) - PNG_tRNS; -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - PNG_zTXt; -#endif -#endif /* PNG_USE_LOCAL_ARRAYS */ - /* First we make sure we have enough data for the 4 byte chunk name - * and the 4 byte chunk length before proceeding with decoding the - * chunk data. To fully decode each of these chunks, we also make - * sure we have enough data in the buffer for the 4 byte CRC at the - * end of every chunk (except IDAT, which is handled separately). - */ - if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER)) - { - png_byte chunk_length[4]; - - if (png_ptr->buffer_size < 8) - { - png_push_save_buffer(png_ptr); - return; - } - - png_push_fill_buffer(png_ptr, chunk_length, 4); - png_ptr->push_length = png_get_uint_32(chunk_length); - png_reset_crc(png_ptr); - png_crc_read(png_ptr, png_ptr->chunk_name, 4); - png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; - } - - if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_IHDR(png_ptr, info_ptr, png_ptr->push_length); - } - else if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_PLTE(png_ptr, info_ptr, png_ptr->push_length); - } - else if (!png_memcmp(png_ptr->chunk_name, (png_bytep)png_IDAT, 4)) - { - /* If we reach an IDAT chunk, this means we have read all of the - * header chunks, and we can start reading the image (or if this - * is called after the image has been read - we have an error). - */ - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before IDAT"); - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - !(png_ptr->mode & PNG_HAVE_PLTE)) - png_error(png_ptr, "Missing PLTE before IDAT"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - { - if (png_ptr->push_length == 0) - return; - - if (png_ptr->mode & PNG_AFTER_IDAT) - png_error(png_ptr, "Too many IDAT's found"); - } - - png_ptr->idat_size = png_ptr->push_length; - png_ptr->mode |= PNG_HAVE_IDAT; - png_ptr->process_mode = PNG_READ_IDAT_MODE; - png_push_have_info(png_ptr, info_ptr); - png_ptr->zstream.avail_out = (uInt)png_ptr->irowbytes; - png_ptr->zstream.next_out = png_ptr->row_buf; - return; - } - else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_IEND(png_ptr, info_ptr, png_ptr->push_length); - - png_ptr->process_mode = PNG_READ_DONE_MODE; - png_push_have_end(png_ptr, info_ptr); - } -#if defined(PNG_READ_gAMA_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_gAMA, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_gAMA(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_sBIT_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sBIT, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_sBIT(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_cHRM_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_cHRM, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_cHRM(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_sRGB_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sRGB, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_sRGB(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_iCCP_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_iCCP, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_iCCP(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_sPLT_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sPLT, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_sPLT(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_tRNS_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tRNS, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_tRNS(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_bKGD_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_bKGD, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_bKGD(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_hIST_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_hIST, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_hIST(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_pHYs_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_pHYs, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_pHYs(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_oFFs_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_oFFs, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_oFFs(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_pCAL_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_pCAL, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_pCAL(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_sCAL_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sCAL, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_sCAL(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_tIME_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tIME, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_tIME(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_tEXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tEXt, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_push_handle_tEXt(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_zTXt, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_push_handle_zTXt(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_iTXt, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_push_handle_iTXt(png_ptr, info_ptr, png_ptr->push_length); - } -#endif - else - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_push_handle_unknown(png_ptr, info_ptr, png_ptr->push_length); - } - - png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; -} - -void /* PRIVATE */ -png_push_crc_skip(png_structp png_ptr, png_uint_32 skip) -{ - png_ptr->process_mode = PNG_SKIP_MODE; - png_ptr->skip_length = skip; -} - -void /* PRIVATE */ -png_push_crc_finish(png_structp png_ptr) -{ - if (png_ptr->skip_length && png_ptr->save_buffer_size) - { - png_size_t save_size; - - if (png_ptr->skip_length < (png_uint_32)png_ptr->save_buffer_size) - save_size = (png_size_t)png_ptr->skip_length; - else - save_size = png_ptr->save_buffer_size; - - png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size); - - png_ptr->skip_length -= save_size; - png_ptr->buffer_size -= save_size; - png_ptr->save_buffer_size -= save_size; - png_ptr->save_buffer_ptr += save_size; - } - if (png_ptr->skip_length && png_ptr->current_buffer_size) - { - png_size_t save_size; - - if (png_ptr->skip_length < (png_uint_32)png_ptr->current_buffer_size) - save_size = (png_size_t)png_ptr->skip_length; - else - save_size = png_ptr->current_buffer_size; - - png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size); - - png_ptr->skip_length -= save_size; - png_ptr->buffer_size -= save_size; - png_ptr->current_buffer_size -= save_size; - png_ptr->current_buffer_ptr += save_size; - } - if (!png_ptr->skip_length) - { - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - - png_crc_finish(png_ptr, 0); - png_ptr->process_mode = PNG_READ_CHUNK_MODE; - } -} - -void PNGAPI -png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length) -{ - png_bytep ptr; - - ptr = buffer; - if (png_ptr->save_buffer_size) - { - png_size_t save_size; - - if (length < png_ptr->save_buffer_size) - save_size = length; - else - save_size = png_ptr->save_buffer_size; - - png_memcpy(ptr, png_ptr->save_buffer_ptr, save_size); - length -= save_size; - ptr += save_size; - png_ptr->buffer_size -= save_size; - png_ptr->save_buffer_size -= save_size; - png_ptr->save_buffer_ptr += save_size; - } - if (length && png_ptr->current_buffer_size) - { - png_size_t save_size; - - if (length < png_ptr->current_buffer_size) - save_size = length; - else - save_size = png_ptr->current_buffer_size; - - png_memcpy(ptr, png_ptr->current_buffer_ptr, save_size); - png_ptr->buffer_size -= save_size; - png_ptr->current_buffer_size -= save_size; - png_ptr->current_buffer_ptr += save_size; - } -} - -void /* PRIVATE */ -png_push_save_buffer(png_structp png_ptr) -{ - if (png_ptr->save_buffer_size) - { - if (png_ptr->save_buffer_ptr != png_ptr->save_buffer) - { - png_size_t i,istop; - png_bytep sp; - png_bytep dp; - - istop = png_ptr->save_buffer_size; - for (i = 0, sp = png_ptr->save_buffer_ptr, dp = png_ptr->save_buffer; - i < istop; i++, sp++, dp++) - { - *dp = *sp; - } - } - } - if (png_ptr->save_buffer_size + png_ptr->current_buffer_size > - png_ptr->save_buffer_max) - { - png_size_t new_max; - png_bytep old_buffer; - - new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256; - old_buffer = png_ptr->save_buffer; - png_ptr->save_buffer = (png_bytep)png_malloc(png_ptr, - (png_uint_32)new_max); - png_memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size); - png_free(png_ptr, old_buffer); - png_ptr->save_buffer_max = new_max; - } - if (png_ptr->current_buffer_size) - { - png_memcpy(png_ptr->save_buffer + png_ptr->save_buffer_size, - png_ptr->current_buffer_ptr, png_ptr->current_buffer_size); - png_ptr->save_buffer_size += png_ptr->current_buffer_size; - png_ptr->current_buffer_size = 0; - } - png_ptr->save_buffer_ptr = png_ptr->save_buffer; - png_ptr->buffer_size = 0; -} - -void /* PRIVATE */ -png_push_restore_buffer(png_structp png_ptr, png_bytep buffer, - png_size_t buffer_length) -{ - png_ptr->current_buffer = buffer; - png_ptr->current_buffer_size = buffer_length; - png_ptr->buffer_size = buffer_length + png_ptr->save_buffer_size; - png_ptr->current_buffer_ptr = png_ptr->current_buffer; -} - -void /* PRIVATE */ -png_push_read_IDAT(png_structp png_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IDAT; -#endif - if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER)) - { - png_byte chunk_length[4]; - - if (png_ptr->buffer_size < 8) - { - png_push_save_buffer(png_ptr); - return; - } - - png_push_fill_buffer(png_ptr, chunk_length, 4); - png_ptr->push_length = png_get_uint_32(chunk_length); - - png_reset_crc(png_ptr); - png_crc_read(png_ptr, png_ptr->chunk_name, 4); - png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; - - if (png_memcmp(png_ptr->chunk_name, (png_bytep)png_IDAT, 4)) - { - png_ptr->process_mode = PNG_READ_CHUNK_MODE; - if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED)) - png_error(png_ptr, "Not enough compressed data"); - return; - } - - png_ptr->idat_size = png_ptr->push_length; - } - if (png_ptr->idat_size && png_ptr->save_buffer_size) - { - png_size_t save_size; - - if (png_ptr->idat_size < (png_uint_32)png_ptr->save_buffer_size) - { - save_size = (png_size_t)png_ptr->idat_size; - /* check for overflow */ - if((png_uint_32)save_size != png_ptr->idat_size) - png_error(png_ptr, "save_size overflowed in pngpread"); - } - else - save_size = png_ptr->save_buffer_size; - - png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size); - if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED)) - png_process_IDAT_data(png_ptr, png_ptr->save_buffer_ptr, save_size); - png_ptr->idat_size -= save_size; - png_ptr->buffer_size -= save_size; - png_ptr->save_buffer_size -= save_size; - png_ptr->save_buffer_ptr += save_size; - } - if (png_ptr->idat_size && png_ptr->current_buffer_size) - { - png_size_t save_size; - - if (png_ptr->idat_size < (png_uint_32)png_ptr->current_buffer_size) - { - save_size = (png_size_t)png_ptr->idat_size; - /* check for overflow */ - if((png_uint_32)save_size != png_ptr->idat_size) - png_error(png_ptr, "save_size overflowed in pngpread"); - } - else - save_size = png_ptr->current_buffer_size; - - png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size); - if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED)) - png_process_IDAT_data(png_ptr, png_ptr->current_buffer_ptr, save_size); - - png_ptr->idat_size -= save_size; - png_ptr->buffer_size -= save_size; - png_ptr->current_buffer_size -= save_size; - png_ptr->current_buffer_ptr += save_size; - } - if (!png_ptr->idat_size) - { - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - - png_crc_finish(png_ptr, 0); - png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; - png_ptr->mode |= PNG_AFTER_IDAT; - } -} - -void /* PRIVATE */ -png_process_IDAT_data(png_structp png_ptr, png_bytep buffer, - png_size_t buffer_length) -{ - int ret; - - if ((png_ptr->flags & PNG_FLAG_ZLIB_FINISHED) && buffer_length) - png_error(png_ptr, "Extra compression data"); - - png_ptr->zstream.next_in = buffer; - png_ptr->zstream.avail_in = (uInt)buffer_length; - for(;;) - { - ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH); - if (ret != Z_OK) - { - if (ret == Z_STREAM_END) - { - if (png_ptr->zstream.avail_in) - png_error(png_ptr, "Extra compressed data"); - if (!(png_ptr->zstream.avail_out)) - { - png_push_process_row(png_ptr); - } - - png_ptr->mode |= PNG_AFTER_IDAT; - png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED; - break; - } - else if (ret == Z_BUF_ERROR) - break; - else - png_error(png_ptr, "Decompression Error"); - } - if (!(png_ptr->zstream.avail_out)) - { - if (( -#if defined(PNG_READ_INTERLACING_SUPPORTED) - png_ptr->interlaced && png_ptr->pass > 6) || - (!png_ptr->interlaced && -#endif - png_ptr->row_number == png_ptr->num_rows-1)) - { - if (png_ptr->zstream.avail_in) - png_warning(png_ptr, "Too much data in IDAT chunks"); - png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED; - break; - } - png_push_process_row(png_ptr); - png_ptr->zstream.avail_out = (uInt)png_ptr->irowbytes; - png_ptr->zstream.next_out = png_ptr->row_buf; - } - else - break; - } -} - -void /* PRIVATE */ -png_push_process_row(png_structp png_ptr) -{ - png_ptr->row_info.color_type = png_ptr->color_type; - png_ptr->row_info.width = png_ptr->iwidth; - png_ptr->row_info.channels = png_ptr->channels; - png_ptr->row_info.bit_depth = png_ptr->bit_depth; - png_ptr->row_info.pixel_depth = png_ptr->pixel_depth; - - png_ptr->row_info.rowbytes = ((png_ptr->row_info.width * - (png_uint_32)png_ptr->row_info.pixel_depth + 7) >> 3); - - png_read_filter_row(png_ptr, &(png_ptr->row_info), - png_ptr->row_buf + 1, png_ptr->prev_row + 1, - (int)(png_ptr->row_buf[0])); - - png_memcpy_check(png_ptr, png_ptr->prev_row, png_ptr->row_buf, - png_ptr->rowbytes + 1); - - if (png_ptr->transformations) - png_do_read_transformations(png_ptr); - -#if defined(PNG_READ_INTERLACING_SUPPORTED) - /* blow up interlaced rows to full size */ - if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE)) - { - if (png_ptr->pass < 6) -/* old interface (pre-1.0.9): - png_do_read_interlace(&(png_ptr->row_info), - png_ptr->row_buf + 1, png_ptr->pass, png_ptr->transformations); - */ - png_do_read_interlace(png_ptr); - - switch (png_ptr->pass) - { - case 0: - { - int i; - for (i = 0; i < 8 && png_ptr->pass == 0; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); /* updates png_ptr->pass */ - } - if (png_ptr->pass == 2) /* pass 1 might be empty */ - { - for (i = 0; i < 4 && png_ptr->pass == 2; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - } - if (png_ptr->pass == 4 && png_ptr->height <= 4) - { - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - } - if (png_ptr->pass == 6 && png_ptr->height <= 4) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - break; - } - case 1: - { - int i; - for (i = 0; i < 8 && png_ptr->pass == 1; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - if (png_ptr->pass == 2) /* skip top 4 generated rows */ - { - for (i = 0; i < 4 && png_ptr->pass == 2; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - } - break; - } - case 2: - { - int i; - for (i = 0; i < 4 && png_ptr->pass == 2; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - for (i = 0; i < 4 && png_ptr->pass == 2; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - if (png_ptr->pass == 4) /* pass 3 might be empty */ - { - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - } - break; - } - case 3: - { - int i; - for (i = 0; i < 4 && png_ptr->pass == 3; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - if (png_ptr->pass == 4) /* skip top two generated rows */ - { - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - } - break; - } - case 4: - { - int i; - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - if (png_ptr->pass == 6) /* pass 5 might be empty */ - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - break; - } - case 5: - { - int i; - for (i = 0; i < 2 && png_ptr->pass == 5; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - if (png_ptr->pass == 6) /* skip top generated row */ - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - break; - } - case 6: - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - if (png_ptr->pass != 6) - break; - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - } - } - else -#endif - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } -} - -void /* PRIVATE */ -png_read_push_finish_row(png_structp png_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* start of interlace block */ - const int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; - - /* offset to next interlace block */ - const int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; - - /* start of interlace block in the y direction */ - const int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1}; - - /* offset to next interlace block in the y direction */ - const int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2}; - - /* Width of interlace block. This is not currently used - if you need - * it, uncomment it here and in png.h - const int FARDATA png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; - */ - - /* Height of interlace block. This is not currently used - if you need - * it, uncomment it here and in png.h - const int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1}; - */ -#endif - - png_ptr->row_number++; - if (png_ptr->row_number < png_ptr->num_rows) - return; - - if (png_ptr->interlaced) - { - png_ptr->row_number = 0; - png_memset_check(png_ptr, png_ptr->prev_row, 0, - png_ptr->rowbytes + 1); - do - { - png_ptr->pass++; - if ((png_ptr->pass == 1 && png_ptr->width < 5) || - (png_ptr->pass == 3 && png_ptr->width < 3) || - (png_ptr->pass == 5 && png_ptr->width < 2)) - png_ptr->pass++; - - if (png_ptr->pass > 7) - png_ptr->pass--; - if (png_ptr->pass >= 7) - break; - - png_ptr->iwidth = (png_ptr->width + - png_pass_inc[png_ptr->pass] - 1 - - png_pass_start[png_ptr->pass]) / - png_pass_inc[png_ptr->pass]; - - png_ptr->irowbytes = ((png_ptr->iwidth * - png_ptr->pixel_depth + 7) >> 3) + 1; - - if (png_ptr->transformations & PNG_INTERLACE) - break; - - png_ptr->num_rows = (png_ptr->height + - png_pass_yinc[png_ptr->pass] - 1 - - png_pass_ystart[png_ptr->pass]) / - png_pass_yinc[png_ptr->pass]; - - } while (png_ptr->iwidth == 0 || png_ptr->num_rows == 0); - } -} - -#if defined(PNG_READ_tEXt_SUPPORTED) -void /* PRIVATE */ -png_push_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 - length) -{ - if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND)) - { - png_error(png_ptr, "Out of place tEXt"); - /* to quiet some compiler warnings */ - if(info_ptr == NULL) return; - } - -#ifdef PNG_MAX_MALLOC_64K - png_ptr->skip_length = 0; /* This may not be necessary */ - - if (length > (png_uint_32)65535L) /* Can't hold entire string in memory */ - { - png_warning(png_ptr, "tEXt chunk too large to fit in memory"); - png_ptr->skip_length = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - - png_ptr->current_text = (png_charp)png_malloc(png_ptr, - (png_uint_32)(length+1)); - png_ptr->current_text[length] = '\0'; - png_ptr->current_text_ptr = png_ptr->current_text; - png_ptr->current_text_size = (png_size_t)length; - png_ptr->current_text_left = (png_size_t)length; - png_ptr->process_mode = PNG_READ_tEXt_MODE; -} - -void /* PRIVATE */ -png_push_read_tEXt(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr->buffer_size && png_ptr->current_text_left) - { - png_size_t text_size; - - if (png_ptr->buffer_size < png_ptr->current_text_left) - text_size = png_ptr->buffer_size; - else - text_size = png_ptr->current_text_left; - png_crc_read(png_ptr, (png_bytep)png_ptr->current_text_ptr, text_size); - png_ptr->current_text_left -= text_size; - png_ptr->current_text_ptr += text_size; - } - if (!(png_ptr->current_text_left)) - { - png_textp text_ptr; - png_charp text; - png_charp key; - int ret; - - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - - png_push_crc_finish(png_ptr); - -#if defined(PNG_MAX_MALLOC_64K) - if (png_ptr->skip_length) - return; -#endif - - key = png_ptr->current_text; - - for (text = key; *text; text++) - /* empty loop */ ; - - if (text != key + png_ptr->current_text_size) - text++; - - text_ptr = (png_textp)png_malloc(png_ptr, (png_uint_32)sizeof(png_text)); - text_ptr->compression = PNG_TEXT_COMPRESSION_NONE; - text_ptr->key = key; -#ifdef PNG_iTXt_SUPPORTED - text_ptr->lang = NULL; - text_ptr->lang_key = NULL; -#endif - text_ptr->text = text; - - ret = png_set_text_2(png_ptr, info_ptr, text_ptr, 1); - - png_free(png_ptr, key); - png_free(png_ptr, text_ptr); - png_ptr->current_text = NULL; - - if (ret) - png_warning(png_ptr, "Insufficient memory to store text chunk."); - } -} -#endif - -#if defined(PNG_READ_zTXt_SUPPORTED) -void /* PRIVATE */ -png_push_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 - length) -{ - if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND)) - { - png_error(png_ptr, "Out of place zTXt"); - /* to quiet some compiler warnings */ - if(info_ptr == NULL) return; - } - -#ifdef PNG_MAX_MALLOC_64K - /* We can't handle zTXt chunks > 64K, since we don't have enough space - * to be able to store the uncompressed data. Actually, the threshold - * is probably around 32K, but it isn't as definite as 64K is. - */ - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr, "zTXt chunk too large to fit in memory"); - png_push_crc_skip(png_ptr, length); - return; - } -#endif - - png_ptr->current_text = (png_charp)png_malloc(png_ptr, - (png_uint_32)(length+1)); - png_ptr->current_text[length] = '\0'; - png_ptr->current_text_ptr = png_ptr->current_text; - png_ptr->current_text_size = (png_size_t)length; - png_ptr->current_text_left = (png_size_t)length; - png_ptr->process_mode = PNG_READ_zTXt_MODE; -} - -void /* PRIVATE */ -png_push_read_zTXt(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr->buffer_size && png_ptr->current_text_left) - { - png_size_t text_size; - - if (png_ptr->buffer_size < (png_uint_32)png_ptr->current_text_left) - text_size = png_ptr->buffer_size; - else - text_size = png_ptr->current_text_left; - png_crc_read(png_ptr, (png_bytep)png_ptr->current_text_ptr, text_size); - png_ptr->current_text_left -= text_size; - png_ptr->current_text_ptr += text_size; - } - if (!(png_ptr->current_text_left)) - { - png_textp text_ptr; - png_charp text; - png_charp key; - int ret; - png_size_t text_size, key_size; - - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - - png_push_crc_finish(png_ptr); - - key = png_ptr->current_text; - - for (text = key; *text; text++) - /* empty loop */ ; - - /* zTXt can't have zero text */ - if (text == key + png_ptr->current_text_size) - { - png_ptr->current_text = NULL; - png_free(png_ptr, key); - return; - } - - text++; - - if (*text != PNG_TEXT_COMPRESSION_zTXt) /* check compression byte */ - { - png_ptr->current_text = NULL; - png_free(png_ptr, key); - return; - } - - text++; - - png_ptr->zstream.next_in = (png_bytep )text; - png_ptr->zstream.avail_in = (uInt)(png_ptr->current_text_size - - (text - key)); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - - key_size = text - key; - text_size = 0; - text = NULL; - ret = Z_STREAM_END; - - while (png_ptr->zstream.avail_in) - { - ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH); - if (ret != Z_OK && ret != Z_STREAM_END) - { - inflateReset(&png_ptr->zstream); - png_ptr->zstream.avail_in = 0; - png_ptr->current_text = NULL; - png_free(png_ptr, key); - png_free(png_ptr, text); - return; - } - if (!(png_ptr->zstream.avail_out) || ret == Z_STREAM_END) - { - if (text == NULL) - { - text = (png_charp)png_malloc(png_ptr, - (png_uint_32)(png_ptr->zbuf_size - png_ptr->zstream.avail_out - + key_size + 1)); - png_memcpy(text + key_size, png_ptr->zbuf, - png_ptr->zbuf_size - png_ptr->zstream.avail_out); - png_memcpy(text, key, key_size); - text_size = key_size + png_ptr->zbuf_size - - png_ptr->zstream.avail_out; - *(text + text_size) = '\0'; - } - else - { - png_charp tmp; - - tmp = text; - text = (png_charp)png_malloc(png_ptr, text_size + - (png_uint_32)(png_ptr->zbuf_size - png_ptr->zstream.avail_out - + 1)); - png_memcpy(text, tmp, text_size); - png_free(png_ptr, tmp); - png_memcpy(text + text_size, png_ptr->zbuf, - png_ptr->zbuf_size - png_ptr->zstream.avail_out); - text_size += png_ptr->zbuf_size - png_ptr->zstream.avail_out; - *(text + text_size) = '\0'; - } - if (ret != Z_STREAM_END) - { - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - } - } - else - { - break; - } - - if (ret == Z_STREAM_END) - break; - } - - inflateReset(&png_ptr->zstream); - png_ptr->zstream.avail_in = 0; - - if (ret != Z_STREAM_END) - { - png_ptr->current_text = NULL; - png_free(png_ptr, key); - png_free(png_ptr, text); - return; - } - - png_ptr->current_text = NULL; - png_free(png_ptr, key); - key = text; - text += key_size; - - text_ptr = (png_textp)png_malloc(png_ptr, (png_uint_32)sizeof(png_text)); - text_ptr->compression = PNG_TEXT_COMPRESSION_zTXt; - text_ptr->key = key; -#ifdef PNG_iTXt_SUPPORTED - text_ptr->lang = NULL; - text_ptr->lang_key = NULL; -#endif - text_ptr->text = text; - - ret = png_set_text_2(png_ptr, info_ptr, text_ptr, 1); - - png_free(png_ptr, key); - png_free(png_ptr, text_ptr); - - if (ret) - png_warning(png_ptr, "Insufficient memory to store text chunk."); - } -} -#endif - -#if defined(PNG_READ_iTXt_SUPPORTED) -void /* PRIVATE */ -png_push_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 - length) -{ - if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND)) - { - png_error(png_ptr, "Out of place iTXt"); - /* to quiet some compiler warnings */ - if(info_ptr == NULL) return; - } - -#ifdef PNG_MAX_MALLOC_64K - png_ptr->skip_length = 0; /* This may not be necessary */ - - if (length > (png_uint_32)65535L) /* Can't hold entire string in memory */ - { - png_warning(png_ptr, "iTXt chunk too large to fit in memory"); - png_ptr->skip_length = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - - png_ptr->current_text = (png_charp)png_malloc(png_ptr, - (png_uint_32)(length+1)); - png_ptr->current_text[length] = '\0'; - png_ptr->current_text_ptr = png_ptr->current_text; - png_ptr->current_text_size = (png_size_t)length; - png_ptr->current_text_left = (png_size_t)length; - png_ptr->process_mode = PNG_READ_iTXt_MODE; -} - -void /* PRIVATE */ -png_push_read_iTXt(png_structp png_ptr, png_infop info_ptr) -{ - - if (png_ptr->buffer_size && png_ptr->current_text_left) - { - png_size_t text_size; - - if (png_ptr->buffer_size < png_ptr->current_text_left) - text_size = png_ptr->buffer_size; - else - text_size = png_ptr->current_text_left; - png_crc_read(png_ptr, (png_bytep)png_ptr->current_text_ptr, text_size); - png_ptr->current_text_left -= text_size; - png_ptr->current_text_ptr += text_size; - } - if (!(png_ptr->current_text_left)) - { - png_textp text_ptr; - png_charp key; - int comp_flag; - png_charp lang; - png_charp lang_key; - png_charp text; - int ret; - - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - - png_push_crc_finish(png_ptr); - -#if defined(PNG_MAX_MALLOC_64K) - if (png_ptr->skip_length) - return; -#endif - - key = png_ptr->current_text; - - for (lang = key; *lang; lang++) - /* empty loop */ ; - - if (lang != key + png_ptr->current_text_size) - lang++; - - comp_flag = *lang++; - lang++; /* skip comp_type, always zero */ - - for (lang_key = lang; *lang_key; lang_key++) - /* empty loop */ ; - lang_key++; /* skip NUL separator */ - - for (text = lang_key; *text; text++) - /* empty loop */ ; - - if (text != key + png_ptr->current_text_size) - text++; - - text_ptr = (png_textp)png_malloc(png_ptr, (png_uint_32)sizeof(png_text)); - text_ptr->compression = comp_flag + 2; - text_ptr->key = key; - text_ptr->lang = lang; - text_ptr->lang_key = lang_key; - text_ptr->text = text; - text_ptr->text_length = 0; - text_ptr->itxt_length = png_strlen(text); - - ret = png_set_text_2(png_ptr, info_ptr, text_ptr, 1); - - png_ptr->current_text = NULL; - - png_free(png_ptr, text_ptr); - if (ret) - png_warning(png_ptr, "Insufficient memory to store iTXt chunk."); - } -} -#endif - -/* This function is called when we haven't found a handler for this - * chunk. If there isn't a problem with the chunk itself (ie a bad chunk - * name or a critical chunk), the chunk is (currently) silently ignored. - */ -void /* PRIVATE */ -png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 - length) -{ - png_uint_32 skip=0; - png_check_chunk_name(png_ptr, png_ptr->chunk_name); - - if (!(png_ptr->chunk_name[0] & 0x20)) - { -#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) - if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) != - HANDLE_CHUNK_ALWAYS -#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) - && png_ptr->read_user_chunk_fn == NULL -#endif - ) -#endif - png_chunk_error(png_ptr, "unknown critical chunk"); - - /* to quiet compiler warnings about unused info_ptr */ - if (info_ptr == NULL) - return; - } - -#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) - if (png_ptr->flags & PNG_FLAG_KEEP_UNKNOWN_CHUNKS) - { - png_unknown_chunk chunk; - -#ifdef PNG_MAX_MALLOC_64K - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr, "unknown chunk too large to fit in memory"); - skip = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - - png_strcpy((png_charp)chunk.name, (png_charp)png_ptr->chunk_name); - chunk.data = (png_bytep)png_malloc(png_ptr, length); - png_crc_read(png_ptr, chunk.data, length); - chunk.size = length; -#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) - if(png_ptr->read_user_chunk_fn != NULL) - { - /* callback to user unknown chunk handler */ - if ((*(png_ptr->read_user_chunk_fn)) (png_ptr, &chunk) <= 0) - { - if (!(png_ptr->chunk_name[0] & 0x20)) - if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) != - HANDLE_CHUNK_ALWAYS) - png_chunk_error(png_ptr, "unknown critical chunk"); - } - png_set_unknown_chunks(png_ptr, info_ptr, &chunk, 1); - } - else -#endif - png_set_unknown_chunks(png_ptr, info_ptr, &chunk, 1); - png_free(png_ptr, chunk.data); - } - else -#endif - skip=length; - png_push_crc_skip(png_ptr, skip); -} - -void /* PRIVATE */ -png_push_have_info(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr->info_fn != NULL) - (*(png_ptr->info_fn))(png_ptr, info_ptr); -} - -void /* PRIVATE */ -png_push_have_end(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr->end_fn != NULL) - (*(png_ptr->end_fn))(png_ptr, info_ptr); -} - -void /* PRIVATE */ -png_push_have_row(png_structp png_ptr, png_bytep row) -{ - if (png_ptr->row_fn != NULL) - (*(png_ptr->row_fn))(png_ptr, row, png_ptr->row_number, - (int)png_ptr->pass); -} - -void PNGAPI -png_progressive_combine_row (png_structp png_ptr, - png_bytep old_row, png_bytep new_row) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - const int FARDATA png_pass_dsp_mask[7] = - {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff}; -#endif - if (new_row != NULL) /* new_row must == png_ptr->row_buf here. */ - png_combine_row(png_ptr, old_row, png_pass_dsp_mask[png_ptr->pass]); -} - -void PNGAPI -png_set_progressive_read_fn(png_structp png_ptr, png_voidp progressive_ptr, - png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, - png_progressive_end_ptr end_fn) -{ - png_ptr->info_fn = info_fn; - png_ptr->row_fn = row_fn; - png_ptr->end_fn = end_fn; - - png_set_read_fn(png_ptr, progressive_ptr, png_push_fill_buffer); -} - -png_voidp PNGAPI -png_get_progressive_ptr(png_structp png_ptr) -{ - return png_ptr->io_ptr; -} -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ diff --git a/collects/plot/src/all/pngread.c b/collects/plot/src/all/pngread.c deleted file mode 100644 index e91d3e89ca..0000000000 --- a/collects/plot/src/all/pngread.c +++ /dev/null @@ -1,1424 +0,0 @@ - -/* pngread.c - read a PNG file - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file contains routines that an application calls directly to - * read a PNG file or stream. - */ - -#define PNG_INTERNAL -#include "png.h" - -/* Create a PNG structure for reading, and allocate any memory needed. */ -png_structp PNGAPI -png_create_read_struct(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn) -{ - -#ifdef PNG_USER_MEM_SUPPORTED - return (png_create_read_struct_2(user_png_ver, error_ptr, error_fn, - warn_fn, png_voidp_NULL, png_malloc_ptr_NULL, png_free_ptr_NULL)); -} - -/* Alternate create PNG structure for reading, and allocate any memory needed. */ -png_structp PNGAPI -png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn) -{ -#endif /* PNG_USER_MEM_SUPPORTED */ - - png_structp png_ptr; - -#ifdef PNG_SETJMP_SUPPORTED -#ifdef USE_FAR_KEYWORD - jmp_buf jmpbuf; -#endif -#endif - - int i; - - png_debug(1, "in png_create_read_struct\n"); -#ifdef PNG_USER_MEM_SUPPORTED - png_ptr = (png_structp)png_create_struct_2(PNG_STRUCT_PNG, - (png_malloc_ptr)malloc_fn, (png_voidp)mem_ptr); -#else - png_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG); -#endif - if (png_ptr == NULL) - return (NULL); - -#if !defined(PNG_1_0_X) -#ifdef PNG_ASSEMBLER_CODE_SUPPORTED - png_init_mmx_flags(png_ptr); /* 1.2.0 addition */ -#endif -#endif /* PNG_1_0_X */ - -#ifdef PNG_SETJMP_SUPPORTED -#ifdef USE_FAR_KEYWORD - if (setjmp(jmpbuf)) -#else - if (setjmp(png_ptr->jmpbuf)) -#endif - { - png_free(png_ptr, png_ptr->zbuf); - png_ptr->zbuf=NULL; -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)png_ptr, - (png_free_ptr)free_fn, (png_voidp)mem_ptr); -#else - png_destroy_struct((png_voidp)png_ptr); -#endif - return (NULL); - } -#ifdef USE_FAR_KEYWORD - png_memcpy(png_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf)); -#endif -#endif - -#ifdef PNG_USER_MEM_SUPPORTED - png_set_mem_fn(png_ptr, mem_ptr, malloc_fn, free_fn); -#endif - - png_set_error_fn(png_ptr, error_ptr, error_fn, warn_fn); - - i=0; - do - { - if(user_png_ver[i] != png_libpng_ver[i]) - png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; - } while (png_libpng_ver[i++]); - - if (png_ptr->flags & PNG_FLAG_LIBRARY_MISMATCH) - { - /* Libpng 0.90 and later are binary incompatible with libpng 0.89, so - * we must recompile any applications that use any older library version. - * For versions after libpng 1.0, we will be compatible, so we need - * only check the first digit. - */ - if (user_png_ver == NULL || user_png_ver[0] != png_libpng_ver[0] || - (user_png_ver[0] == '1' && user_png_ver[2] != png_libpng_ver[2]) || - (user_png_ver[0] == '0' && user_png_ver[2] < '9')) - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char msg[80]; - if (user_png_ver) - { - sprintf(msg, "Application was compiled with png.h from libpng-%.20s", - user_png_ver); - png_warning(png_ptr, msg); - } - sprintf(msg, "Application is running with png.c from libpng-%.20s", - png_libpng_ver); - png_warning(png_ptr, msg); -#endif -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags=0; -#endif - png_error(png_ptr, - "Incompatible libpng version in application and library"); - } - } - - /* initialize zbuf - compression buffer */ - png_ptr->zbuf_size = PNG_ZBUF_SIZE; - png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, - (png_uint_32)png_ptr->zbuf_size); - png_ptr->zstream.zalloc = png_zalloc; - png_ptr->zstream.zfree = png_zfree; - png_ptr->zstream.opaque = (voidpf)png_ptr; - - switch (inflateInit(&png_ptr->zstream)) - { - case Z_OK: /* Do nothing */ break; - case Z_MEM_ERROR: - case Z_STREAM_ERROR: png_error(png_ptr, "zlib memory error"); break; - case Z_VERSION_ERROR: png_error(png_ptr, "zlib version error"); break; - default: png_error(png_ptr, "Unknown zlib error"); - } - - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - - png_set_read_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL); - -#ifdef PNG_SETJMP_SUPPORTED -/* Applications that neglect to set up their own setjmp() and then encounter - a png_error() will longjmp here. Since the jmpbuf is then meaningless we - abort instead of returning. */ -#ifdef USE_FAR_KEYWORD - if (setjmp(jmpbuf)) - PNG_ABORT(); - png_memcpy(png_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf)); -#else - if (setjmp(png_ptr->jmpbuf)) - PNG_ABORT(); -#endif -#endif - return (png_ptr); -} - -/* Initialize PNG structure for reading, and allocate any memory needed. - This interface is deprecated in favour of the png_create_read_struct(), - and it will eventually disappear. */ -#undef png_read_init -void PNGAPI -png_read_init(png_structp png_ptr) -{ - /* We only come here via pre-1.0.7-compiled applications */ - png_read_init_2(png_ptr, "1.0.6 or earlier", 0, 0); -} - -void PNGAPI -png_read_init_2(png_structp png_ptr, png_const_charp user_png_ver, - png_size_t png_struct_size, png_size_t png_info_size) -{ - /* We only come here via pre-1.0.12-compiled applications */ -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - if(sizeof(png_struct) > png_struct_size || sizeof(png_info) > png_info_size) - { - char msg[80]; - png_ptr->warning_fn=NULL; - if (user_png_ver) - { - sprintf(msg, "Application was compiled with png.h from libpng-%.20s", - user_png_ver); - png_warning(png_ptr, msg); - } - sprintf(msg, "Application is running with png.c from libpng-%.20s", - png_libpng_ver); - png_warning(png_ptr, msg); - } -#endif - if(sizeof(png_struct) > png_struct_size) - { - png_ptr->error_fn=NULL; -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags=0; -#endif - png_error(png_ptr, - "The png struct allocated by the application for reading is too small."); - } - if(sizeof(png_info) > png_info_size) - { - png_ptr->error_fn=NULL; -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags=0; -#endif - png_error(png_ptr, - "The info struct allocated by application for reading is too small."); - } - png_read_init_3(&png_ptr, user_png_ver, png_struct_size); -} - -void PNGAPI -png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver, - png_size_t png_struct_size) -{ -#ifdef PNG_SETJMP_SUPPORTED - jmp_buf tmp_jmp; /* to save current jump buffer */ -#endif - - int i=0; - - png_structp png_ptr=*ptr_ptr; - - do - { - if(user_png_ver[i] != png_libpng_ver[i]) - { -#ifdef PNG_LEGACY_SUPPORTED - png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; -#else - png_ptr->warning_fn=NULL; - png_warning(png_ptr, - "Application uses deprecated png_read_init() and should be recompiled."); - break; -#endif - } - } while (png_libpng_ver[i++]); - - png_debug(1, "in png_read_init_3\n"); - -#ifdef PNG_SETJMP_SUPPORTED - /* save jump buffer and error functions */ - png_memcpy(tmp_jmp, png_ptr->jmpbuf, sizeof (jmp_buf)); -#endif - - if(sizeof(png_struct) > png_struct_size) - { - png_destroy_struct(png_ptr); - *ptr_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG); - png_ptr = *ptr_ptr; - } - - /* reset all variables to 0 */ - png_memset(png_ptr, 0, sizeof (png_struct)); - -#ifdef PNG_SETJMP_SUPPORTED - /* restore jump buffer */ - png_memcpy(png_ptr->jmpbuf, tmp_jmp, sizeof (jmp_buf)); -#endif - - /* initialize zbuf - compression buffer */ - png_ptr->zbuf_size = PNG_ZBUF_SIZE; - png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, - (png_uint_32)png_ptr->zbuf_size); - png_ptr->zstream.zalloc = png_zalloc; - png_ptr->zstream.zfree = png_zfree; - png_ptr->zstream.opaque = (voidpf)png_ptr; - - switch (inflateInit(&png_ptr->zstream)) - { - case Z_OK: /* Do nothing */ break; - case Z_MEM_ERROR: - case Z_STREAM_ERROR: png_error(png_ptr, "zlib memory"); break; - case Z_VERSION_ERROR: png_error(png_ptr, "zlib version"); break; - default: png_error(png_ptr, "Unknown zlib error"); - } - - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - - png_set_read_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL); -} - -/* Read the information before the actual image data. This has been - * changed in v0.90 to allow reading a file that already has the magic - * bytes read from the stream. You can tell libpng how many bytes have - * been read from the beginning of the stream (up to the maximum of 8) - * via png_set_sig_bytes(), and we will only check the remaining bytes - * here. The application can then have access to the signature bytes we - * read if it is determined that this isn't a valid PNG file. - */ -void PNGAPI -png_read_info(png_structp png_ptr, png_infop info_ptr) -{ - png_debug(1, "in png_read_info\n"); - /* If we haven't checked all of the PNG signature bytes, do so now. */ - if (png_ptr->sig_bytes < 8) - { - png_size_t num_checked = png_ptr->sig_bytes, - num_to_check = 8 - num_checked; - - png_read_data(png_ptr, &(info_ptr->signature[num_checked]), num_to_check); - png_ptr->sig_bytes = 8; - - if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check)) - { - if (num_checked < 4 && - png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4)) - png_error(png_ptr, "Not a PNG file"); - else - png_error(png_ptr, "PNG file corrupted by ASCII conversion"); - } - if (num_checked < 3) - png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE; - } - - for(;;) - { -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IHDR; - PNG_IDAT; - PNG_IEND; - PNG_PLTE; -#if defined(PNG_READ_bKGD_SUPPORTED) - PNG_bKGD; -#endif -#if defined(PNG_READ_cHRM_SUPPORTED) - PNG_cHRM; -#endif -#if defined(PNG_READ_gAMA_SUPPORTED) - PNG_gAMA; -#endif -#if defined(PNG_READ_hIST_SUPPORTED) - PNG_hIST; -#endif -#if defined(PNG_READ_iCCP_SUPPORTED) - PNG_iCCP; -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - PNG_iTXt; -#endif -#if defined(PNG_READ_oFFs_SUPPORTED) - PNG_oFFs; -#endif -#if defined(PNG_READ_pCAL_SUPPORTED) - PNG_pCAL; -#endif -#if defined(PNG_READ_pHYs_SUPPORTED) - PNG_pHYs; -#endif -#if defined(PNG_READ_sBIT_SUPPORTED) - PNG_sBIT; -#endif -#if defined(PNG_READ_sCAL_SUPPORTED) - PNG_sCAL; -#endif -#if defined(PNG_READ_sPLT_SUPPORTED) - PNG_sPLT; -#endif -#if defined(PNG_READ_sRGB_SUPPORTED) - PNG_sRGB; -#endif -#if defined(PNG_READ_tEXt_SUPPORTED) - PNG_tEXt; -#endif -#if defined(PNG_READ_tIME_SUPPORTED) - PNG_tIME; -#endif -#if defined(PNG_READ_tRNS_SUPPORTED) - PNG_tRNS; -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - PNG_zTXt; -#endif -#endif /* PNG_GLOBAL_ARRAYS */ - png_byte chunk_length[4]; - png_uint_32 length; - - png_read_data(png_ptr, chunk_length, 4); - length = png_get_uint_32(chunk_length); - - png_reset_crc(png_ptr); - png_crc_read(png_ptr, png_ptr->chunk_name, 4); - - png_debug2(0, "Reading %s chunk, length=%lu.\n", png_ptr->chunk_name, - length); - - if (length > PNG_MAX_UINT) - png_error(png_ptr, "Invalid chunk length."); - - /* This should be a binary subdivision search or a hash for - * matching the chunk name rather than a linear search. - */ - if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4)) - png_handle_IHDR(png_ptr, info_ptr, length); - else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4)) - png_handle_IEND(png_ptr, info_ptr, length); -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED - else if (png_handle_as_unknown(png_ptr, png_ptr->chunk_name)) - { - if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - png_ptr->mode |= PNG_HAVE_IDAT; - png_handle_unknown(png_ptr, info_ptr, length); - if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4)) - png_ptr->mode |= PNG_HAVE_PLTE; - else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - { - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before IDAT"); - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - !(png_ptr->mode & PNG_HAVE_PLTE)) - png_error(png_ptr, "Missing PLTE before IDAT"); - break; - } - } -#endif - else if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4)) - png_handle_PLTE(png_ptr, info_ptr, length); - else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - { - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before IDAT"); - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - !(png_ptr->mode & PNG_HAVE_PLTE)) - png_error(png_ptr, "Missing PLTE before IDAT"); - - png_ptr->idat_size = length; - png_ptr->mode |= PNG_HAVE_IDAT; - break; - } -#if defined(PNG_READ_bKGD_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_bKGD, 4)) - png_handle_bKGD(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_cHRM_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_cHRM, 4)) - png_handle_cHRM(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_gAMA_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_gAMA, 4)) - png_handle_gAMA(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_hIST_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_hIST, 4)) - png_handle_hIST(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_oFFs_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_oFFs, 4)) - png_handle_oFFs(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_pCAL_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_pCAL, 4)) - png_handle_pCAL(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sCAL_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sCAL, 4)) - png_handle_sCAL(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_pHYs_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_pHYs, 4)) - png_handle_pHYs(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sBIT_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sBIT, 4)) - png_handle_sBIT(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sRGB_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sRGB, 4)) - png_handle_sRGB(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_iCCP_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_iCCP, 4)) - png_handle_iCCP(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sPLT_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sPLT, 4)) - png_handle_sPLT(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_tEXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tEXt, 4)) - png_handle_tEXt(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_tIME_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tIME, 4)) - png_handle_tIME(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_tRNS_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tRNS, 4)) - png_handle_tRNS(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_zTXt, 4)) - png_handle_zTXt(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_iTXt, 4)) - png_handle_iTXt(png_ptr, info_ptr, length); -#endif - else - png_handle_unknown(png_ptr, info_ptr, length); - } -} - -/* optional call to update the users info_ptr structure */ -void PNGAPI -png_read_update_info(png_structp png_ptr, png_infop info_ptr) -{ - png_debug(1, "in png_read_update_info\n"); - if (!(png_ptr->flags & PNG_FLAG_ROW_INIT)) - png_read_start_row(png_ptr); - else - png_warning(png_ptr, - "Ignoring extra png_read_update_info() call; row buffer not reallocated"); - png_read_transform_info(png_ptr, info_ptr); -} - -/* Initialize palette, background, etc, after transformations - * are set, but before any reading takes place. This allows - * the user to obtain a gamma-corrected palette, for example. - * If the user doesn't call this, we will do it ourselves. - */ -void PNGAPI -png_start_read_image(png_structp png_ptr) -{ - png_debug(1, "in png_start_read_image\n"); - if (!(png_ptr->flags & PNG_FLAG_ROW_INIT)) - png_read_start_row(png_ptr); -} - -void PNGAPI -png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IDAT; - const int png_pass_dsp_mask[7] = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff}; - const int png_pass_mask[7] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff}; -#endif - int ret; - png_debug2(1, "in png_read_row (row %lu, pass %d)\n", - png_ptr->row_number, png_ptr->pass); - if (!(png_ptr->flags & PNG_FLAG_ROW_INIT)) - png_read_start_row(png_ptr); - if (png_ptr->row_number == 0 && png_ptr->pass == 0) - { - /* check for transforms that have been set but were defined out */ -#if defined(PNG_WRITE_INVERT_SUPPORTED) && !defined(PNG_READ_INVERT_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_MONO) - png_warning(png_ptr, "PNG_READ_INVERT_SUPPORTED is not defined."); -#endif -#if defined(PNG_WRITE_FILLER_SUPPORTED) && !defined(PNG_READ_FILLER_SUPPORTED) - if (png_ptr->transformations & PNG_FILLER) - png_warning(png_ptr, "PNG_READ_FILLER_SUPPORTED is not defined."); -#endif -#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) && !defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - png_warning(png_ptr, "PNG_READ_PACKSWAP_SUPPORTED is not defined."); -#endif -#if defined(PNG_WRITE_PACK_SUPPORTED) && !defined(PNG_READ_PACK_SUPPORTED) - if (png_ptr->transformations & PNG_PACK) - png_warning(png_ptr, "PNG_READ_PACK_SUPPORTED is not defined."); -#endif -#if defined(PNG_WRITE_SHIFT_SUPPORTED) && !defined(PNG_READ_SHIFT_SUPPORTED) - if (png_ptr->transformations & PNG_SHIFT) - png_warning(png_ptr, "PNG_READ_SHIFT_SUPPORTED is not defined."); -#endif -#if defined(PNG_WRITE_BGR_SUPPORTED) && !defined(PNG_READ_BGR_SUPPORTED) - if (png_ptr->transformations & PNG_BGR) - png_warning(png_ptr, "PNG_READ_BGR_SUPPORTED is not defined."); -#endif -#if defined(PNG_WRITE_SWAP_SUPPORTED) && !defined(PNG_READ_SWAP_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_BYTES) - png_warning(png_ptr, "PNG_READ_SWAP_SUPPORTED is not defined."); -#endif - } - -#if defined(PNG_READ_INTERLACING_SUPPORTED) - /* if interlaced and we do not need a new row, combine row and return */ - if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE)) - { - switch (png_ptr->pass) - { - case 0: - if (png_ptr->row_number & 0x07) - { - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - png_read_finish_row(png_ptr); - return; - } - break; - case 1: - if ((png_ptr->row_number & 0x07) || png_ptr->width < 5) - { - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - png_read_finish_row(png_ptr); - return; - } - break; - case 2: - if ((png_ptr->row_number & 0x07) != 4) - { - if (dsp_row != NULL && (png_ptr->row_number & 4)) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - png_read_finish_row(png_ptr); - return; - } - break; - case 3: - if ((png_ptr->row_number & 3) || png_ptr->width < 3) - { - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - png_read_finish_row(png_ptr); - return; - } - break; - case 4: - if ((png_ptr->row_number & 3) != 2) - { - if (dsp_row != NULL && (png_ptr->row_number & 2)) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - png_read_finish_row(png_ptr); - return; - } - break; - case 5: - if ((png_ptr->row_number & 1) || png_ptr->width < 2) - { - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - png_read_finish_row(png_ptr); - return; - } - break; - case 6: - if (!(png_ptr->row_number & 1)) - { - png_read_finish_row(png_ptr); - return; - } - break; - } - } -#endif - - if (!(png_ptr->mode & PNG_HAVE_IDAT)) - png_error(png_ptr, "Invalid attempt to read row data"); - - png_ptr->zstream.next_out = png_ptr->row_buf; - png_ptr->zstream.avail_out = (uInt)png_ptr->irowbytes; - do - { - if (!(png_ptr->zstream.avail_in)) - { - while (!png_ptr->idat_size) - { - png_byte chunk_length[4]; - - png_crc_finish(png_ptr, 0); - - png_read_data(png_ptr, chunk_length, 4); - png_ptr->idat_size = png_get_uint_32(chunk_length); - - if (png_ptr->idat_size > PNG_MAX_UINT) - png_error(png_ptr, "Invalid chunk length."); - - png_reset_crc(png_ptr); - png_crc_read(png_ptr, png_ptr->chunk_name, 4); - if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - png_error(png_ptr, "Not enough image data"); - } - png_ptr->zstream.avail_in = (uInt)png_ptr->zbuf_size; - png_ptr->zstream.next_in = png_ptr->zbuf; - if (png_ptr->zbuf_size > png_ptr->idat_size) - png_ptr->zstream.avail_in = (uInt)png_ptr->idat_size; - png_crc_read(png_ptr, png_ptr->zbuf, - (png_size_t)png_ptr->zstream.avail_in); - png_ptr->idat_size -= png_ptr->zstream.avail_in; - } - ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH); - if (ret == Z_STREAM_END) - { - if (png_ptr->zstream.avail_out || png_ptr->zstream.avail_in || - png_ptr->idat_size) - png_error(png_ptr, "Extra compressed data"); - png_ptr->mode |= PNG_AFTER_IDAT; - png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED; - break; - } - if (ret != Z_OK) - png_error(png_ptr, png_ptr->zstream.msg ? png_ptr->zstream.msg : - "Decompression error"); - - } while (png_ptr->zstream.avail_out); - - png_ptr->row_info.color_type = png_ptr->color_type; - png_ptr->row_info.width = png_ptr->iwidth; - png_ptr->row_info.channels = png_ptr->channels; - png_ptr->row_info.bit_depth = png_ptr->bit_depth; - png_ptr->row_info.pixel_depth = png_ptr->pixel_depth; - png_ptr->row_info.rowbytes = ((png_ptr->row_info.width * - (png_uint_32)png_ptr->row_info.pixel_depth + 7) >> 3); - - if(png_ptr->row_buf[0]) - png_read_filter_row(png_ptr, &(png_ptr->row_info), - png_ptr->row_buf + 1, png_ptr->prev_row + 1, - (int)(png_ptr->row_buf[0])); - - png_memcpy_check(png_ptr, png_ptr->prev_row, png_ptr->row_buf, - png_ptr->rowbytes + 1); - -#if defined(PNG_MNG_FEATURES_SUPPORTED) - if((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING)) - { - /* Intrapixel differencing */ - png_do_read_intrapixel(&(png_ptr->row_info), png_ptr->row_buf + 1); - } -#endif - - if (png_ptr->transformations) - png_do_read_transformations(png_ptr); - -#if defined(PNG_READ_INTERLACING_SUPPORTED) - /* blow up interlaced rows to full size */ - if (png_ptr->interlaced && - (png_ptr->transformations & PNG_INTERLACE)) - { - if (png_ptr->pass < 6) -/* old interface (pre-1.0.9): - png_do_read_interlace(&(png_ptr->row_info), - png_ptr->row_buf + 1, png_ptr->pass, png_ptr->transformations); - */ - png_do_read_interlace(png_ptr); - - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - if (row != NULL) - png_combine_row(png_ptr, row, - png_pass_mask[png_ptr->pass]); - } - else -#endif - { - if (row != NULL) - png_combine_row(png_ptr, row, 0xff); - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, 0xff); - } - png_read_finish_row(png_ptr); - - if (png_ptr->read_row_fn != NULL) - (*(png_ptr->read_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass); -} - -/* Read one or more rows of image data. If the image is interlaced, - * and png_set_interlace_handling() has been called, the rows need to - * contain the contents of the rows from the previous pass. If the - * image has alpha or transparency, and png_handle_alpha()[*] has been - * called, the rows contents must be initialized to the contents of the - * screen. - * - * "row" holds the actual image, and pixels are placed in it - * as they arrive. If the image is displayed after each pass, it will - * appear to "sparkle" in. "display_row" can be used to display a - * "chunky" progressive image, with finer detail added as it becomes - * available. If you do not want this "chunky" display, you may pass - * NULL for display_row. If you do not want the sparkle display, and - * you have not called png_handle_alpha(), you may pass NULL for rows. - * If you have called png_handle_alpha(), and the image has either an - * alpha channel or a transparency chunk, you must provide a buffer for - * rows. In this case, you do not have to provide a display_row buffer - * also, but you may. If the image is not interlaced, or if you have - * not called png_set_interlace_handling(), the display_row buffer will - * be ignored, so pass NULL to it. - * - * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.5 - */ - -void PNGAPI -png_read_rows(png_structp png_ptr, png_bytepp row, - png_bytepp display_row, png_uint_32 num_rows) -{ - png_uint_32 i; - png_bytepp rp; - png_bytepp dp; - - png_debug(1, "in png_read_rows\n"); - rp = row; - dp = display_row; - if (rp != NULL && dp != NULL) - for (i = 0; i < num_rows; i++) - { - png_bytep rptr = *rp++; - png_bytep dptr = *dp++; - - png_read_row(png_ptr, rptr, dptr); - } - else if(rp != NULL) - for (i = 0; i < num_rows; i++) - { - png_bytep rptr = *rp; - png_read_row(png_ptr, rptr, png_bytep_NULL); - rp++; - } - else if(dp != NULL) - for (i = 0; i < num_rows; i++) - { - png_bytep dptr = *dp; - png_read_row(png_ptr, png_bytep_NULL, dptr); - dp++; - } -} - -/* Read the entire image. If the image has an alpha channel or a tRNS - * chunk, and you have called png_handle_alpha()[*], you will need to - * initialize the image to the current image that PNG will be overlaying. - * We set the num_rows again here, in case it was incorrectly set in - * png_read_start_row() by a call to png_read_update_info() or - * png_start_read_image() if png_set_interlace_handling() wasn't called - * prior to either of these functions like it should have been. You can - * only call this function once. If you desire to have an image for - * each pass of a interlaced image, use png_read_rows() instead. - * - * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.5 - */ -void PNGAPI -png_read_image(png_structp png_ptr, png_bytepp image) -{ - png_uint_32 i,image_height; - int pass, j; - png_bytepp rp; - - png_debug(1, "in png_read_image\n"); - -#ifdef PNG_READ_INTERLACING_SUPPORTED - pass = png_set_interlace_handling(png_ptr); -#else - if (png_ptr->interlaced) - png_error(png_ptr, - "Cannot read interlaced image -- interlace handler disabled."); - pass = 1; -#endif - - - image_height=png_ptr->height; - png_ptr->num_rows = image_height; /* Make sure this is set correctly */ - - for (j = 0; j < pass; j++) - { - rp = image; - for (i = 0; i < image_height; i++) - { - png_read_row(png_ptr, *rp, png_bytep_NULL); - rp++; - } - } -} - -/* Read the end of the PNG file. Will not read past the end of the - * file, will verify the end is accurate, and will read any comments - * or time information at the end of the file, if info is not NULL. - */ -void PNGAPI -png_read_end(png_structp png_ptr, png_infop info_ptr) -{ - png_byte chunk_length[4]; - png_uint_32 length; - - png_debug(1, "in png_read_end\n"); - png_crc_finish(png_ptr, 0); /* Finish off CRC from last IDAT chunk */ - - do - { -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IHDR; - PNG_IDAT; - PNG_IEND; - PNG_PLTE; -#if defined(PNG_READ_bKGD_SUPPORTED) - PNG_bKGD; -#endif -#if defined(PNG_READ_cHRM_SUPPORTED) - PNG_cHRM; -#endif -#if defined(PNG_READ_gAMA_SUPPORTED) - PNG_gAMA; -#endif -#if defined(PNG_READ_hIST_SUPPORTED) - PNG_hIST; -#endif -#if defined(PNG_READ_iCCP_SUPPORTED) - PNG_iCCP; -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - PNG_iTXt; -#endif -#if defined(PNG_READ_oFFs_SUPPORTED) - PNG_oFFs; -#endif -#if defined(PNG_READ_pCAL_SUPPORTED) - PNG_pCAL; -#endif -#if defined(PNG_READ_pHYs_SUPPORTED) - PNG_pHYs; -#endif -#if defined(PNG_READ_sBIT_SUPPORTED) - PNG_sBIT; -#endif -#if defined(PNG_READ_sCAL_SUPPORTED) - PNG_sCAL; -#endif -#if defined(PNG_READ_sPLT_SUPPORTED) - PNG_sPLT; -#endif -#if defined(PNG_READ_sRGB_SUPPORTED) - PNG_sRGB; -#endif -#if defined(PNG_READ_tEXt_SUPPORTED) - PNG_tEXt; -#endif -#if defined(PNG_READ_tIME_SUPPORTED) - PNG_tIME; -#endif -#if defined(PNG_READ_tRNS_SUPPORTED) - PNG_tRNS; -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - PNG_zTXt; -#endif -#endif /* PNG_GLOBAL_ARRAYS */ - - png_read_data(png_ptr, chunk_length, 4); - length = png_get_uint_32(chunk_length); - - png_reset_crc(png_ptr); - png_crc_read(png_ptr, png_ptr->chunk_name, 4); - - png_debug1(0, "Reading %s chunk.\n", png_ptr->chunk_name); - - if (length > PNG_MAX_UINT) - png_error(png_ptr, "Invalid chunk length."); - - if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4)) - png_handle_IHDR(png_ptr, info_ptr, length); - else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4)) - png_handle_IEND(png_ptr, info_ptr, length); -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED - else if (png_handle_as_unknown(png_ptr, png_ptr->chunk_name)) - { - if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - { - if (length > 0 || png_ptr->mode & PNG_AFTER_IDAT) - png_error(png_ptr, "Too many IDAT's found"); - } - else - png_ptr->mode |= PNG_AFTER_IDAT; - png_handle_unknown(png_ptr, info_ptr, length); - if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4)) - png_ptr->mode |= PNG_HAVE_PLTE; - } -#endif - else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - { - /* Zero length IDATs are legal after the last IDAT has been - * read, but not after other chunks have been read. - */ - if (length > 0 || png_ptr->mode & PNG_AFTER_IDAT) - png_error(png_ptr, "Too many IDAT's found"); - png_crc_finish(png_ptr, length); - } - else if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4)) - png_handle_PLTE(png_ptr, info_ptr, length); -#if defined(PNG_READ_bKGD_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_bKGD, 4)) - png_handle_bKGD(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_cHRM_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_cHRM, 4)) - png_handle_cHRM(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_gAMA_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_gAMA, 4)) - png_handle_gAMA(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_hIST_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_hIST, 4)) - png_handle_hIST(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_oFFs_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_oFFs, 4)) - png_handle_oFFs(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_pCAL_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_pCAL, 4)) - png_handle_pCAL(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sCAL_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sCAL, 4)) - png_handle_sCAL(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_pHYs_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_pHYs, 4)) - png_handle_pHYs(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sBIT_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sBIT, 4)) - png_handle_sBIT(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sRGB_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sRGB, 4)) - png_handle_sRGB(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_iCCP_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_iCCP, 4)) - png_handle_iCCP(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sPLT_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sPLT, 4)) - png_handle_sPLT(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_tEXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tEXt, 4)) - png_handle_tEXt(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_tIME_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tIME, 4)) - png_handle_tIME(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_tRNS_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tRNS, 4)) - png_handle_tRNS(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_zTXt, 4)) - png_handle_zTXt(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_iTXt, 4)) - png_handle_iTXt(png_ptr, info_ptr, length); -#endif - else - png_handle_unknown(png_ptr, info_ptr, length); - } while (!(png_ptr->mode & PNG_HAVE_IEND)); -} - -/* free all memory used by the read */ -void PNGAPI -png_destroy_read_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr, - png_infopp end_info_ptr_ptr) -{ - png_structp png_ptr = NULL; - png_infop info_ptr = NULL, end_info_ptr = NULL; -#ifdef PNG_USER_MEM_SUPPORTED - png_free_ptr free_fn = NULL; - png_voidp mem_ptr = NULL; -#endif - - png_debug(1, "in png_destroy_read_struct\n"); - if (png_ptr_ptr != NULL) - png_ptr = *png_ptr_ptr; - - if (info_ptr_ptr != NULL) - info_ptr = *info_ptr_ptr; - - if (end_info_ptr_ptr != NULL) - end_info_ptr = *end_info_ptr_ptr; - -#ifdef PNG_USER_MEM_SUPPORTED - free_fn = png_ptr->free_fn; - mem_ptr = png_ptr->mem_ptr; -#endif - - png_read_destroy(png_ptr, info_ptr, end_info_ptr); - - if (info_ptr != NULL) - { -#if defined(PNG_TEXT_SUPPORTED) - png_free_data(png_ptr, info_ptr, PNG_FREE_TEXT, -1); -#endif - -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)info_ptr, (png_free_ptr)free_fn, - (png_voidp)mem_ptr); -#else - png_destroy_struct((png_voidp)info_ptr); -#endif - *info_ptr_ptr = NULL; - } - - if (end_info_ptr != NULL) - { -#if defined(PNG_READ_TEXT_SUPPORTED) - png_free_data(png_ptr, end_info_ptr, PNG_FREE_TEXT, -1); -#endif -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)end_info_ptr, (png_free_ptr)free_fn, - (png_voidp)mem_ptr); -#else - png_destroy_struct((png_voidp)end_info_ptr); -#endif - *end_info_ptr_ptr = NULL; - } - - if (png_ptr != NULL) - { -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)png_ptr, (png_free_ptr)free_fn, - (png_voidp)mem_ptr); -#else - png_destroy_struct((png_voidp)png_ptr); -#endif - *png_ptr_ptr = NULL; - } -} - -/* free all memory used by the read (old method) */ -void /* PRIVATE */ -png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr) -{ -#ifdef PNG_SETJMP_SUPPORTED - jmp_buf tmp_jmp; -#endif - png_error_ptr error_fn; - png_error_ptr warning_fn; - png_voidp error_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - png_free_ptr free_fn; -#endif - - png_debug(1, "in png_read_destroy\n"); - if (info_ptr != NULL) - png_info_destroy(png_ptr, info_ptr); - - if (end_info_ptr != NULL) - png_info_destroy(png_ptr, end_info_ptr); - - png_free(png_ptr, png_ptr->zbuf); - png_free(png_ptr, png_ptr->big_row_buf); - png_free(png_ptr, png_ptr->prev_row); -#if defined(PNG_READ_DITHER_SUPPORTED) - png_free(png_ptr, png_ptr->palette_lookup); - png_free(png_ptr, png_ptr->dither_index); -#endif -#if defined(PNG_READ_GAMMA_SUPPORTED) - png_free(png_ptr, png_ptr->gamma_table); -#endif -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - png_free(png_ptr, png_ptr->gamma_from_1); - png_free(png_ptr, png_ptr->gamma_to_1); -#endif -#ifdef PNG_FREE_ME_SUPPORTED - if (png_ptr->free_me & PNG_FREE_PLTE) - png_zfree(png_ptr, png_ptr->palette); - png_ptr->free_me &= ~PNG_FREE_PLTE; -#else - if (png_ptr->flags & PNG_FLAG_FREE_PLTE) - png_zfree(png_ptr, png_ptr->palette); - png_ptr->flags &= ~PNG_FLAG_FREE_PLTE; -#endif -#if defined(PNG_tRNS_SUPPORTED) || \ - defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) -#ifdef PNG_FREE_ME_SUPPORTED - if (png_ptr->free_me & PNG_FREE_TRNS) - png_free(png_ptr, png_ptr->trans); - png_ptr->free_me &= ~PNG_FREE_TRNS; -#else - if (png_ptr->flags & PNG_FLAG_FREE_TRNS) - png_free(png_ptr, png_ptr->trans); - png_ptr->flags &= ~PNG_FLAG_FREE_TRNS; -#endif -#endif -#if defined(PNG_READ_hIST_SUPPORTED) -#ifdef PNG_FREE_ME_SUPPORTED - if (png_ptr->free_me & PNG_FREE_HIST) - png_free(png_ptr, png_ptr->hist); - png_ptr->free_me &= ~PNG_FREE_HIST; -#else - if (png_ptr->flags & PNG_FLAG_FREE_HIST) - png_free(png_ptr, png_ptr->hist); - png_ptr->flags &= ~PNG_FLAG_FREE_HIST; -#endif -#endif -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (png_ptr->gamma_16_table != NULL) - { - int i; - int istop = (1 << (8 - png_ptr->gamma_shift)); - for (i = 0; i < istop; i++) - { - png_free(png_ptr, png_ptr->gamma_16_table[i]); - } - png_free(png_ptr, png_ptr->gamma_16_table); - } -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->gamma_16_from_1 != NULL) - { - int i; - int istop = (1 << (8 - png_ptr->gamma_shift)); - for (i = 0; i < istop; i++) - { - png_free(png_ptr, png_ptr->gamma_16_from_1[i]); - } - png_free(png_ptr, png_ptr->gamma_16_from_1); - } - if (png_ptr->gamma_16_to_1 != NULL) - { - int i; - int istop = (1 << (8 - png_ptr->gamma_shift)); - for (i = 0; i < istop; i++) - { - png_free(png_ptr, png_ptr->gamma_16_to_1[i]); - } - png_free(png_ptr, png_ptr->gamma_16_to_1); - } -#endif -#endif -#if defined(PNG_TIME_RFC1123_SUPPORTED) - png_free(png_ptr, png_ptr->time_buffer); -#endif - - inflateEnd(&png_ptr->zstream); -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED - png_free(png_ptr, png_ptr->save_buffer); -#endif - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -#ifdef PNG_TEXT_SUPPORTED - png_free(png_ptr, png_ptr->current_text); -#endif /* PNG_TEXT_SUPPORTED */ -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ - - /* Save the important info out of the png_struct, in case it is - * being used again. - */ -#ifdef PNG_SETJMP_SUPPORTED - png_memcpy(tmp_jmp, png_ptr->jmpbuf, sizeof (jmp_buf)); -#endif - - error_fn = png_ptr->error_fn; - warning_fn = png_ptr->warning_fn; - error_ptr = png_ptr->error_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - free_fn = png_ptr->free_fn; -#endif - - png_memset(png_ptr, 0, sizeof (png_struct)); - - png_ptr->error_fn = error_fn; - png_ptr->warning_fn = warning_fn; - png_ptr->error_ptr = error_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - png_ptr->free_fn = free_fn; -#endif - -#ifdef PNG_SETJMP_SUPPORTED - png_memcpy(png_ptr->jmpbuf, tmp_jmp, sizeof (jmp_buf)); -#endif - -} - -void PNGAPI -png_set_read_status_fn(png_structp png_ptr, png_read_status_ptr read_row_fn) -{ - png_ptr->read_row_fn = read_row_fn; -} - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -void PNGAPI -png_read_png(png_structp png_ptr, png_infop info_ptr, - int transforms, - voidp params) -{ - int row; - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) - /* invert the alpha channel from opacity to transparency */ - if (transforms & PNG_TRANSFORM_INVERT_ALPHA) - png_set_invert_alpha(png_ptr); -#endif - - /* The call to png_read_info() gives us all of the information from the - * PNG file before the first IDAT (image data chunk). - */ - png_read_info(png_ptr, info_ptr); - - /* -------------- image transformations start here ------------------- */ - -#if defined(PNG_READ_16_TO_8_SUPPORTED) - /* tell libpng to strip 16 bit/color files down to 8 bits/color */ - if (transforms & PNG_TRANSFORM_STRIP_16) - png_set_strip_16(png_ptr); -#endif - -#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED) - /* Strip alpha bytes from the input data without combining with the - * background (not recommended). - */ - if (transforms & PNG_TRANSFORM_STRIP_ALPHA) - png_set_strip_alpha(png_ptr); -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) && !defined(PNG_READ_EXPAND_SUPPORTED) - /* Extract multiple pixels with bit depths of 1, 2, and 4 from a single - * byte into separate bytes (useful for paletted and grayscale images). - */ - if (transforms & PNG_TRANSFORM_PACKING) - png_set_packing(png_ptr); -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - /* Change the order of packed pixels to least significant bit first - * (not useful if you are using png_set_packing). */ - if (transforms & PNG_TRANSFORM_PACKSWAP) - png_set_packswap(png_ptr); -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) - /* Expand paletted colors into true RGB triplets - * Expand grayscale images to full 8 bits from 1, 2, or 4 bits/pixel - * Expand paletted or RGB images with transparency to full alpha - * channels so the data will be available as RGBA quartets. - */ - if (transforms & PNG_TRANSFORM_EXPAND) - if ((png_ptr->bit_depth < 8) || - (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) || - (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))) - png_set_expand(png_ptr); -#endif - - /* We don't handle background color or gamma transformation or dithering. */ - -#if defined(PNG_READ_INVERT_SUPPORTED) - /* invert monochrome files to have 0 as white and 1 as black */ - if (transforms & PNG_TRANSFORM_INVERT_MONO) - png_set_invert_mono(png_ptr); -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) - /* If you want to shift the pixel values from the range [0,255] or - * [0,65535] to the original [0,7] or [0,31], or whatever range the - * colors were originally in: - */ - if ((transforms & PNG_TRANSFORM_SHIFT) - && png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT)) - { - png_color_8p sig_bit; - - png_get_sBIT(png_ptr, info_ptr, &sig_bit); - png_set_shift(png_ptr, sig_bit); - } -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) - /* flip the RGB pixels to BGR (or RGBA to BGRA) */ - if (transforms & PNG_TRANSFORM_BGR) - png_set_bgr(png_ptr); -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) - /* swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */ - if (transforms & PNG_TRANSFORM_SWAP_ALPHA) - png_set_swap_alpha(png_ptr); -#endif - -#if defined(PNG_READ_SWAP_SUPPORTED) - /* swap bytes of 16 bit files to least significant byte first */ - if (transforms & PNG_TRANSFORM_SWAP_ENDIAN) - png_set_swap(png_ptr); -#endif - - /* We don't handle adding filler bytes */ - - /* Optional call to gamma correct and add the background to the palette - * and update info structure. REQUIRED if you are expecting libpng to - * update the palette for you (i.e., you selected such a transform above). - */ - png_read_update_info(png_ptr, info_ptr); - - /* -------------- image transformations end here ------------------- */ - -#ifdef PNG_FREE_ME_SUPPORTED - png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0); -#endif - if(info_ptr->row_pointers == NULL) - { - info_ptr->row_pointers = (png_bytepp)png_malloc(png_ptr, - info_ptr->height * sizeof(png_bytep)); -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_ROWS; -#endif - for (row = 0; row < (int)info_ptr->height; row++) - { - info_ptr->row_pointers[row] = (png_bytep)png_malloc(png_ptr, - png_get_rowbytes(png_ptr, info_ptr)); - } - } - - png_read_image(png_ptr, info_ptr->row_pointers); - info_ptr->valid |= PNG_INFO_IDAT; - - /* read rest of file, and get additional chunks in info_ptr - REQUIRED */ - png_read_end(png_ptr, info_ptr); - - if(transforms == 0 || params == NULL) - /* quiet compiler warnings */ return; - -} -#endif diff --git a/collects/plot/src/all/pngrio.c b/collects/plot/src/all/pngrio.c deleted file mode 100644 index c33b1cdce3..0000000000 --- a/collects/plot/src/all/pngrio.c +++ /dev/null @@ -1,161 +0,0 @@ - -/* pngrio.c - functions for data input - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file provides a location for all input. Users who need - * special handling are expected to write a function that has the same - * arguments as this and performs a similar function, but that possibly - * has a different input method. Note that you shouldn't change this - * function, but rather write a replacement function and then make - * libpng use it at run time with png_set_read_fn(...). - */ - -#define PNG_INTERNAL -#include "png.h" - -/* Read the data from whatever input you are using. The default routine - reads from a file pointer. Note that this routine sometimes gets called - with very small lengths, so you should implement some kind of simple - buffering if you are using unbuffered reads. This should never be asked - to read more then 64K on a 16 bit machine. */ -void /* PRIVATE */ -png_read_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_debug1(4,"reading %d bytes\n", (int)length); - if (png_ptr->read_data_fn != NULL) - (*(png_ptr->read_data_fn))(png_ptr, data, length); - else - png_error(png_ptr, "Call to NULL read function"); -} - -#if !defined(PNG_NO_STDIO) -/* This is the function that does the actual reading of data. If you are - not reading from a standard C stream, you should create a replacement - read_data function and use it at run time with png_set_read_fn(), rather - than changing the library. */ -#ifndef USE_FAR_KEYWORD -void PNGAPI -png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_size_t check; - - /* fread() returns 0 on error, so it is OK to store this in a png_size_t - * instead of an int, which is what fread() actually returns. - */ -#if defined(_WIN32_WCE) - if ( !ReadFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) ) - check = 0; -#else - check = (png_size_t)fread(data, (png_size_t)1, length, - (png_FILE_p)png_ptr->io_ptr); -#endif - - if (check != length) - png_error(png_ptr, "Read Error"); -} -#else -/* this is the model-independent version. Since the standard I/O library - can't handle far buffers in the medium and small models, we have to copy - the data. -*/ - -#define NEAR_BUF_SIZE 1024 -#define MIN(a,b) (a <= b ? a : b) - -static void /* PRIVATE */ -png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - int check; - png_byte *n_data; - png_FILE_p io_ptr; - - /* Check if data really is near. If so, use usual code. */ - n_data = (png_byte *)CVT_PTR_NOCHECK(data); - io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr); - if ((png_bytep)n_data == data) - { -#if defined(_WIN32_WCE) - if ( !ReadFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) ) - check = 0; -#else - check = fread(n_data, 1, length, io_ptr); -#endif - } - else - { - png_byte buf[NEAR_BUF_SIZE]; - png_size_t read, remaining, err; - check = 0; - remaining = length; - do - { - read = MIN(NEAR_BUF_SIZE, remaining); -#if defined(_WIN32_WCE) - if ( !ReadFile((HANDLE)(io_ptr), buf, read, &err, NULL) ) - err = 0; -#else - err = fread(buf, (png_size_t)1, read, io_ptr); -#endif - png_memcpy(data, buf, read); /* copy far buffer to near buffer */ - if(err != read) - break; - else - check += err; - data += read; - remaining -= read; - } - while (remaining != 0); - } - if ((png_uint_32)check != (png_uint_32)length) - png_error(png_ptr, "read Error"); -} -#endif -#endif - -/* This function allows the application to supply a new input function - for libpng if standard C streams aren't being used. - - This function takes as its arguments: - png_ptr - pointer to a png input data structure - io_ptr - pointer to user supplied structure containing info about - the input functions. May be NULL. - read_data_fn - pointer to a new input function that takes as its - arguments a pointer to a png_struct, a pointer to - a location where input data can be stored, and a 32-bit - unsigned int that is the number of bytes to be read. - To exit and output any fatal error messages the new write - function should call png_error(png_ptr, "Error msg"). */ -void PNGAPI -png_set_read_fn(png_structp png_ptr, png_voidp io_ptr, - png_rw_ptr read_data_fn) -{ - png_ptr->io_ptr = io_ptr; - -#if !defined(PNG_NO_STDIO) - if (read_data_fn != NULL) - png_ptr->read_data_fn = read_data_fn; - else - png_ptr->read_data_fn = png_default_read_data; -#else - png_ptr->read_data_fn = read_data_fn; -#endif - - /* It is an error to write to a read device */ - if (png_ptr->write_data_fn != NULL) - { - png_ptr->write_data_fn = NULL; - png_warning(png_ptr, - "It's an error to set both read_data_fn and write_data_fn in the "); - png_warning(png_ptr, - "same structure. Resetting write_data_fn to NULL."); - } - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) - png_ptr->output_flush_fn = NULL; -#endif -} diff --git a/collects/plot/src/all/pngrtran.c b/collects/plot/src/all/pngrtran.c deleted file mode 100644 index 3de91202c1..0000000000 --- a/collects/plot/src/all/pngrtran.c +++ /dev/null @@ -1,4175 +0,0 @@ - -/* pngrtran.c - transforms the data in a row for PNG readers - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file contains functions optionally called by an application - * in order to tell libpng how to handle data when reading a PNG. - * Transformations that are used in both reading and writing are - * in pngtrans.c. - */ - -#define PNG_INTERNAL -#include "png.h" - -/* Set the action on getting a CRC error for an ancillary or critical chunk. */ -void PNGAPI -png_set_crc_action(png_structp png_ptr, int crit_action, int ancil_action) -{ - png_debug(1, "in png_set_crc_action\n"); - /* Tell libpng how we react to CRC errors in critical chunks */ - switch (crit_action) - { - case PNG_CRC_NO_CHANGE: /* leave setting as is */ - break; - case PNG_CRC_WARN_USE: /* warn/use data */ - png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK; - png_ptr->flags |= PNG_FLAG_CRC_CRITICAL_USE; - break; - case PNG_CRC_QUIET_USE: /* quiet/use data */ - png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK; - png_ptr->flags |= PNG_FLAG_CRC_CRITICAL_USE | - PNG_FLAG_CRC_CRITICAL_IGNORE; - break; - case PNG_CRC_WARN_DISCARD: /* not a valid action for critical data */ - png_warning(png_ptr, "Can't discard critical data on CRC error."); - case PNG_CRC_ERROR_QUIT: /* error/quit */ - case PNG_CRC_DEFAULT: - default: - png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK; - break; - } - - switch (ancil_action) - { - case PNG_CRC_NO_CHANGE: /* leave setting as is */ - break; - case PNG_CRC_WARN_USE: /* warn/use data */ - png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; - png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_USE; - break; - case PNG_CRC_QUIET_USE: /* quiet/use data */ - png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; - png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_USE | - PNG_FLAG_CRC_ANCILLARY_NOWARN; - break; - case PNG_CRC_ERROR_QUIT: /* error/quit */ - png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; - png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_NOWARN; - break; - case PNG_CRC_WARN_DISCARD: /* warn/discard data */ - case PNG_CRC_DEFAULT: - default: - png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; - break; - } -} - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) && \ - defined(PNG_FLOATING_POINT_SUPPORTED) -/* handle alpha and tRNS via a background color */ -void PNGAPI -png_set_background(png_structp png_ptr, - png_color_16p background_color, int background_gamma_code, - int need_expand, double background_gamma) -{ - png_debug(1, "in png_set_background\n"); - if (background_gamma_code == PNG_BACKGROUND_GAMMA_UNKNOWN) - { - png_warning(png_ptr, "Application must supply a known background gamma"); - return; - } - - png_ptr->transformations |= PNG_BACKGROUND; - png_memcpy(&(png_ptr->background), background_color, sizeof(png_color_16)); - png_ptr->background_gamma = (float)background_gamma; - png_ptr->background_gamma_type = (png_byte)(background_gamma_code); - png_ptr->transformations |= (need_expand ? PNG_BACKGROUND_EXPAND : 0); - - /* Note: if need_expand is set and color_type is either RGB or RGB_ALPHA - * (in which case need_expand is superfluous anyway), the background color - * might actually be gray yet not be flagged as such. This is not a problem - * for the current code, which uses PNG_BACKGROUND_IS_GRAY only to - * decide when to do the png_do_gray_to_rgb() transformation. - */ - if ((need_expand && !(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) || - (!need_expand && background_color->red == background_color->green && - background_color->red == background_color->blue)) - png_ptr->mode |= PNG_BACKGROUND_IS_GRAY; -} -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) -/* strip 16 bit depth files to 8 bit depth */ -void PNGAPI -png_set_strip_16(png_structp png_ptr) -{ - png_debug(1, "in png_set_strip_16\n"); - png_ptr->transformations |= PNG_16_TO_8; -} -#endif - -#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED) -void PNGAPI -png_set_strip_alpha(png_structp png_ptr) -{ - png_debug(1, "in png_set_strip_alpha\n"); - png_ptr->transformations |= PNG_STRIP_ALPHA; -} -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) -/* Dither file to 8 bit. Supply a palette, the current number - * of elements in the palette, the maximum number of elements - * allowed, and a histogram if possible. If the current number - * of colors is greater then the maximum number, the palette will be - * modified to fit in the maximum number. "full_dither" indicates - * whether we need a dithering cube set up for RGB images, or if we - * simply are reducing the number of colors in a paletted image. - */ - -typedef struct png_dsort_struct -{ - struct png_dsort_struct FAR * next; - png_byte left; - png_byte right; -} png_dsort; -typedef png_dsort FAR * png_dsortp; -typedef png_dsort FAR * FAR * png_dsortpp; - -void PNGAPI -png_set_dither(png_structp png_ptr, png_colorp palette, - int num_palette, int maximum_colors, png_uint_16p histogram, - int full_dither) -{ - png_debug(1, "in png_set_dither\n"); - png_ptr->transformations |= PNG_DITHER; - - if (!full_dither) - { - int i; - - png_ptr->dither_index = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(num_palette * sizeof (png_byte))); - for (i = 0; i < num_palette; i++) - png_ptr->dither_index[i] = (png_byte)i; - } - - if (num_palette > maximum_colors) - { - if (histogram != NULL) - { - /* This is easy enough, just throw out the least used colors. - Perhaps not the best solution, but good enough. */ - - int i; - - /* initialize an array to sort colors */ - png_ptr->dither_sort = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(num_palette * sizeof (png_byte))); - - /* initialize the dither_sort array */ - for (i = 0; i < num_palette; i++) - png_ptr->dither_sort[i] = (png_byte)i; - - /* Find the least used palette entries by starting a - bubble sort, and running it until we have sorted - out enough colors. Note that we don't care about - sorting all the colors, just finding which are - least used. */ - - for (i = num_palette - 1; i >= maximum_colors; i--) - { - int done; /* to stop early if the list is pre-sorted */ - int j; - - done = 1; - for (j = 0; j < i; j++) - { - if (histogram[png_ptr->dither_sort[j]] - < histogram[png_ptr->dither_sort[j + 1]]) - { - png_byte t; - - t = png_ptr->dither_sort[j]; - png_ptr->dither_sort[j] = png_ptr->dither_sort[j + 1]; - png_ptr->dither_sort[j + 1] = t; - done = 0; - } - } - if (done) - break; - } - - /* swap the palette around, and set up a table, if necessary */ - if (full_dither) - { - int j = num_palette; - - /* put all the useful colors within the max, but don't - move the others */ - for (i = 0; i < maximum_colors; i++) - { - if ((int)png_ptr->dither_sort[i] >= maximum_colors) - { - do - j--; - while ((int)png_ptr->dither_sort[j] >= maximum_colors); - palette[i] = palette[j]; - } - } - } - else - { - int j = num_palette; - - /* move all the used colors inside the max limit, and - develop a translation table */ - for (i = 0; i < maximum_colors; i++) - { - /* only move the colors we need to */ - if ((int)png_ptr->dither_sort[i] >= maximum_colors) - { - png_color tmp_color; - - do - j--; - while ((int)png_ptr->dither_sort[j] >= maximum_colors); - - tmp_color = palette[j]; - palette[j] = palette[i]; - palette[i] = tmp_color; - /* indicate where the color went */ - png_ptr->dither_index[j] = (png_byte)i; - png_ptr->dither_index[i] = (png_byte)j; - } - } - - /* find closest color for those colors we are not using */ - for (i = 0; i < num_palette; i++) - { - if ((int)png_ptr->dither_index[i] >= maximum_colors) - { - int min_d, k, min_k, d_index; - - /* find the closest color to one we threw out */ - d_index = png_ptr->dither_index[i]; - min_d = PNG_COLOR_DIST(palette[d_index], palette[0]); - for (k = 1, min_k = 0; k < maximum_colors; k++) - { - int d; - - d = PNG_COLOR_DIST(palette[d_index], palette[k]); - - if (d < min_d) - { - min_d = d; - min_k = k; - } - } - /* point to closest color */ - png_ptr->dither_index[i] = (png_byte)min_k; - } - } - } - png_free(png_ptr, png_ptr->dither_sort); - png_ptr->dither_sort=NULL; - } - else - { - /* This is much harder to do simply (and quickly). Perhaps - we need to go through a median cut routine, but those - don't always behave themselves with only a few colors - as input. So we will just find the closest two colors, - and throw out one of them (chosen somewhat randomly). - [We don't understand this at all, so if someone wants to - work on improving it, be our guest - AED, GRP] - */ - int i; - int max_d; - int num_new_palette; - png_dsortp t; - png_dsortpp hash; - - t=NULL; - - /* initialize palette index arrays */ - png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(num_palette * sizeof (png_byte))); - png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(num_palette * sizeof (png_byte))); - - /* initialize the sort array */ - for (i = 0; i < num_palette; i++) - { - png_ptr->index_to_palette[i] = (png_byte)i; - png_ptr->palette_to_index[i] = (png_byte)i; - } - - hash = (png_dsortpp)png_malloc(png_ptr, (png_uint_32)(769 * - sizeof (png_dsortp))); - for (i = 0; i < 769; i++) - hash[i] = NULL; -/* png_memset(hash, 0, 769 * sizeof (png_dsortp)); */ - - num_new_palette = num_palette; - - /* initial wild guess at how far apart the farthest pixel - pair we will be eliminating will be. Larger - numbers mean more areas will be allocated, Smaller - numbers run the risk of not saving enough data, and - having to do this all over again. - - I have not done extensive checking on this number. - */ - max_d = 96; - - while (num_new_palette > maximum_colors) - { - for (i = 0; i < num_new_palette - 1; i++) - { - int j; - - for (j = i + 1; j < num_new_palette; j++) - { - int d; - - d = PNG_COLOR_DIST(palette[i], palette[j]); - - if (d <= max_d) - { - - t = (png_dsortp)png_malloc_warn(png_ptr, - (png_uint_32)(sizeof(png_dsort))); - if (t == NULL) - break; - t->next = hash[d]; - t->left = (png_byte)i; - t->right = (png_byte)j; - hash[d] = t; - } - } - if (t == NULL) - break; - } - - if (t != NULL) - for (i = 0; i <= max_d; i++) - { - if (hash[i] != NULL) - { - png_dsortp p; - - for (p = hash[i]; p; p = p->next) - { - if ((int)png_ptr->index_to_palette[p->left] - < num_new_palette && - (int)png_ptr->index_to_palette[p->right] - < num_new_palette) - { - int j, next_j; - - if (num_new_palette & 0x01) - { - j = p->left; - next_j = p->right; - } - else - { - j = p->right; - next_j = p->left; - } - - num_new_palette--; - palette[png_ptr->index_to_palette[j]] - = palette[num_new_palette]; - if (!full_dither) - { - int k; - - for (k = 0; k < num_palette; k++) - { - if (png_ptr->dither_index[k] == - png_ptr->index_to_palette[j]) - png_ptr->dither_index[k] = - png_ptr->index_to_palette[next_j]; - if ((int)png_ptr->dither_index[k] == - num_new_palette) - png_ptr->dither_index[k] = - png_ptr->index_to_palette[j]; - } - } - - png_ptr->index_to_palette[png_ptr->palette_to_index - [num_new_palette]] = png_ptr->index_to_palette[j]; - png_ptr->palette_to_index[png_ptr->index_to_palette[j]] - = png_ptr->palette_to_index[num_new_palette]; - - png_ptr->index_to_palette[j] = (png_byte)num_new_palette; - png_ptr->palette_to_index[num_new_palette] = (png_byte)j; - } - if (num_new_palette <= maximum_colors) - break; - } - if (num_new_palette <= maximum_colors) - break; - } - } - - for (i = 0; i < 769; i++) - { - if (hash[i] != NULL) - { - png_dsortp p = hash[i]; - while (p) - { - t = p->next; - png_free(png_ptr, p); - p = t; - } - } - hash[i] = 0; - } - max_d += 96; - } - png_free(png_ptr, hash); - png_free(png_ptr, png_ptr->palette_to_index); - png_free(png_ptr, png_ptr->index_to_palette); - png_ptr->palette_to_index=NULL; - png_ptr->index_to_palette=NULL; - } - num_palette = maximum_colors; - } - if (png_ptr->palette == NULL) - { - png_ptr->palette = palette; - } - png_ptr->num_palette = (png_uint_16)num_palette; - - if (full_dither) - { - int i; - png_bytep distance; - int total_bits = PNG_DITHER_RED_BITS + PNG_DITHER_GREEN_BITS + - PNG_DITHER_BLUE_BITS; - int num_red = (1 << PNG_DITHER_RED_BITS); - int num_green = (1 << PNG_DITHER_GREEN_BITS); - int num_blue = (1 << PNG_DITHER_BLUE_BITS); - png_size_t num_entries = ((png_size_t)1 << total_bits); - - png_ptr->palette_lookup = (png_bytep )png_malloc(png_ptr, - (png_uint_32)(num_entries * sizeof (png_byte))); - - png_memset(png_ptr->palette_lookup, 0, num_entries * sizeof (png_byte)); - - distance = (png_bytep)png_malloc(png_ptr, (png_uint_32)(num_entries * - sizeof(png_byte))); - - png_memset(distance, 0xff, num_entries * sizeof(png_byte)); - - for (i = 0; i < num_palette; i++) - { - int ir, ig, ib; - int r = (palette[i].red >> (8 - PNG_DITHER_RED_BITS)); - int g = (palette[i].green >> (8 - PNG_DITHER_GREEN_BITS)); - int b = (palette[i].blue >> (8 - PNG_DITHER_BLUE_BITS)); - - for (ir = 0; ir < num_red; ir++) - { - int dr = abs(ir - r); - int index_r = (ir << (PNG_DITHER_BLUE_BITS + PNG_DITHER_GREEN_BITS)); - - for (ig = 0; ig < num_green; ig++) - { - int dg = abs(ig - g); - int dt = dr + dg; - int dm = ((dr > dg) ? dr : dg); - int index_g = index_r | (ig << PNG_DITHER_BLUE_BITS); - - for (ib = 0; ib < num_blue; ib++) - { - int d_index = index_g | ib; - int db = abs(ib - b); - int dmax = ((dm > db) ? dm : db); - int d = dmax + dt + db; - - if (d < (int)distance[d_index]) - { - distance[d_index] = (png_byte)d; - png_ptr->palette_lookup[d_index] = (png_byte)i; - } - } - } - } - } - - png_free(png_ptr, distance); - } -} -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) && defined(PNG_FLOATING_POINT_SUPPORTED) -/* Transform the image from the file_gamma to the screen_gamma. We - * only do transformations on images where the file_gamma and screen_gamma - * are not close reciprocals, otherwise it slows things down slightly, and - * also needlessly introduces small errors. - * - * We will turn off gamma transformation later if no semitransparent entries - * are present in the tRNS array for palette images. We can't do it here - * because we don't necessarily have the tRNS chunk yet. - */ -void PNGAPI -png_set_gamma(png_structp png_ptr, double scrn_gamma, double file_gamma) -{ - png_debug(1, "in png_set_gamma\n"); - if ((fabs(scrn_gamma * file_gamma - 1.0) > PNG_GAMMA_THRESHOLD) || - (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) || - (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)) - png_ptr->transformations |= PNG_GAMMA; - png_ptr->gamma = (float)file_gamma; - png_ptr->screen_gamma = (float)scrn_gamma; -} -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) -/* Expand paletted images to RGB, expand grayscale images of - * less than 8-bit depth to 8-bit depth, and expand tRNS chunks - * to alpha channels. - */ -void PNGAPI -png_set_expand(png_structp png_ptr) -{ - png_debug(1, "in png_set_expand\n"); - png_ptr->transformations |= PNG_EXPAND; -} - -/* GRR 19990627: the following three functions currently are identical - * to png_set_expand(). However, it is entirely reasonable that someone - * might wish to expand an indexed image to RGB but *not* expand a single, - * fully transparent palette entry to a full alpha channel--perhaps instead - * convert tRNS to the grayscale/RGB format (16-bit RGB value), or replace - * the transparent color with a particular RGB value, or drop tRNS entirely. - * IOW, a future version of the library may make the transformations flag - * a bit more fine-grained, with separate bits for each of these three - * functions. - * - * More to the point, these functions make it obvious what libpng will be - * doing, whereas "expand" can (and does) mean any number of things. - */ - -/* Expand paletted images to RGB. */ -void PNGAPI -png_set_palette_to_rgb(png_structp png_ptr) -{ - png_debug(1, "in png_set_expand\n"); - png_ptr->transformations |= PNG_EXPAND; -} - -/* Expand grayscale images of less than 8-bit depth to 8 bits. */ -void PNGAPI -png_set_gray_1_2_4_to_8(png_structp png_ptr) -{ - png_debug(1, "in png_set_expand\n"); - png_ptr->transformations |= PNG_EXPAND; -} - -/* Expand tRNS chunks to alpha channels. */ -void PNGAPI -png_set_tRNS_to_alpha(png_structp png_ptr) -{ - png_debug(1, "in png_set_expand\n"); - png_ptr->transformations |= PNG_EXPAND; -} -#endif /* defined(PNG_READ_EXPAND_SUPPORTED) */ - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) -void PNGAPI -png_set_gray_to_rgb(png_structp png_ptr) -{ - png_debug(1, "in png_set_gray_to_rgb\n"); - png_ptr->transformations |= PNG_GRAY_TO_RGB; -} -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) -#if defined(PNG_FLOATING_POINT_SUPPORTED) -/* Convert a RGB image to a grayscale of the same width. This allows us, - * for example, to convert a 24 bpp RGB image into an 8 bpp grayscale image. - */ - -void PNGAPI -png_set_rgb_to_gray(png_structp png_ptr, int error_action, double red, - double green) -{ - int red_fixed = (int)((float)red*100000.0 + 0.5); - int green_fixed = (int)((float)green*100000.0 + 0.5); - png_set_rgb_to_gray_fixed(png_ptr, error_action, red_fixed, green_fixed); -} -#endif - -void PNGAPI -png_set_rgb_to_gray_fixed(png_structp png_ptr, int error_action, - png_fixed_point red, png_fixed_point green) -{ - png_debug(1, "in png_set_rgb_to_gray\n"); - switch(error_action) - { - case 1: png_ptr->transformations |= PNG_RGB_TO_GRAY; - break; - case 2: png_ptr->transformations |= PNG_RGB_TO_GRAY_WARN; - break; - case 3: png_ptr->transformations |= PNG_RGB_TO_GRAY_ERR; - } - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) -#if defined(PNG_READ_EXPAND_SUPPORTED) - png_ptr->transformations |= PNG_EXPAND; -#else - { - png_warning(png_ptr, "Cannot do RGB_TO_GRAY without EXPAND_SUPPORTED."); - png_ptr->transformations &= ~PNG_RGB_TO_GRAY; - } -#endif - { - png_uint_16 red_int, green_int; - if(red < 0 || green < 0) - { - red_int = 6968; /* .212671 * 32768 + .5 */ - green_int = 23434; /* .715160 * 32768 + .5 */ - } - else if(red + green < 100000L) - { - red_int = (png_uint_16)(((png_uint_32)red*32768L)/100000L); - green_int = (png_uint_16)(((png_uint_32)green*32768L)/100000L); - } - else - { - png_warning(png_ptr, "ignoring out of range rgb_to_gray coefficients"); - red_int = 6968; - green_int = 23434; - } - png_ptr->rgb_to_gray_red_coeff = red_int; - png_ptr->rgb_to_gray_green_coeff = green_int; - png_ptr->rgb_to_gray_blue_coeff = (png_uint_16)(32768-red_int-green_int); - } -} -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -void PNGAPI -png_set_read_user_transform_fn(png_structp png_ptr, png_user_transform_ptr - read_user_transform_fn) -{ - png_debug(1, "in png_set_read_user_transform_fn\n"); -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) - png_ptr->transformations |= PNG_USER_TRANSFORM; - png_ptr->read_user_transform_fn = read_user_transform_fn; -#endif -#ifdef PNG_LEGACY_SUPPORTED - if(read_user_transform_fn) - png_warning(png_ptr, - "This version of libpng does not support user transforms"); -#endif -} -#endif - -/* Initialize everything needed for the read. This includes modifying - * the palette. - */ -void /* PRIVATE */ -png_init_read_transformations(png_structp png_ptr) -{ - png_debug(1, "in png_init_read_transformations\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if(png_ptr != NULL) -#endif - { -#if defined(PNG_READ_BACKGROUND_SUPPORTED) || defined(PNG_READ_SHIFT_SUPPORTED) \ - || defined(PNG_READ_GAMMA_SUPPORTED) - int color_type = png_ptr->color_type; -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) && defined(PNG_READ_BACKGROUND_SUPPORTED) - if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) && - (png_ptr->transformations & PNG_EXPAND)) - { - if (!(color_type & PNG_COLOR_MASK_COLOR)) /* i.e., GRAY or GRAY_ALPHA */ - { - /* expand background chunk. */ - switch (png_ptr->bit_depth) - { - case 1: - png_ptr->background.gray *= (png_uint_16)0xff; - png_ptr->background.red = png_ptr->background.green - = png_ptr->background.blue = png_ptr->background.gray; - break; - case 2: - png_ptr->background.gray *= (png_uint_16)0x55; - png_ptr->background.red = png_ptr->background.green - = png_ptr->background.blue = png_ptr->background.gray; - break; - case 4: - png_ptr->background.gray *= (png_uint_16)0x11; - png_ptr->background.red = png_ptr->background.green - = png_ptr->background.blue = png_ptr->background.gray; - break; - case 8: - case 16: - png_ptr->background.red = png_ptr->background.green - = png_ptr->background.blue = png_ptr->background.gray; - break; - } - } - else if (color_type == PNG_COLOR_TYPE_PALETTE) - { - png_ptr->background.red = - png_ptr->palette[png_ptr->background.index].red; - png_ptr->background.green = - png_ptr->palette[png_ptr->background.index].green; - png_ptr->background.blue = - png_ptr->palette[png_ptr->background.index].blue; - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_ALPHA) - { -#if defined(PNG_READ_EXPAND_SUPPORTED) - if (!(png_ptr->transformations & PNG_EXPAND)) -#endif - { - /* invert the alpha channel (in tRNS) unless the pixels are - going to be expanded, in which case leave it for later */ - int i,istop; - istop=(int)png_ptr->num_trans; - for (i=0; itrans[i] = (png_byte)(255 - png_ptr->trans[i]); - } - } -#endif - - } - } -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) && defined(PNG_READ_GAMMA_SUPPORTED) - png_ptr->background_1 = png_ptr->background; -#endif -#if defined(PNG_READ_GAMMA_SUPPORTED) && defined(PNG_FLOATING_POINT_SUPPORTED) - - if ((color_type == PNG_COLOR_TYPE_PALETTE && png_ptr->num_trans != 0) - && (fabs(png_ptr->screen_gamma * png_ptr->gamma - 1.0) - < PNG_GAMMA_THRESHOLD)) - { - int i,k; - k=0; - for (i=0; inum_trans; i++) - { - if (png_ptr->trans[i] != 0 && png_ptr->trans[i] != 0xff) - k=1; /* partial transparency is present */ - } - if (k == 0) - png_ptr->transformations &= (~PNG_GAMMA); - } - - if (png_ptr->transformations & (PNG_GAMMA | PNG_RGB_TO_GRAY)) - { - png_build_gamma_table(png_ptr); -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->transformations & PNG_BACKGROUND) - { - if (color_type == PNG_COLOR_TYPE_PALETTE) - { - /* could skip if no transparency and - */ - png_color back, back_1; - png_colorp palette = png_ptr->palette; - int num_palette = png_ptr->num_palette; - int i; - if (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_FILE) - { - back.red = png_ptr->gamma_table[png_ptr->background.red]; - back.green = png_ptr->gamma_table[png_ptr->background.green]; - back.blue = png_ptr->gamma_table[png_ptr->background.blue]; - - back_1.red = png_ptr->gamma_to_1[png_ptr->background.red]; - back_1.green = png_ptr->gamma_to_1[png_ptr->background.green]; - back_1.blue = png_ptr->gamma_to_1[png_ptr->background.blue]; - } - else - { - double g, gs; - - switch (png_ptr->background_gamma_type) - { - case PNG_BACKGROUND_GAMMA_SCREEN: - g = (png_ptr->screen_gamma); - gs = 1.0; - break; - case PNG_BACKGROUND_GAMMA_FILE: - g = 1.0 / (png_ptr->gamma); - gs = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma); - break; - case PNG_BACKGROUND_GAMMA_UNIQUE: - g = 1.0 / (png_ptr->background_gamma); - gs = 1.0 / (png_ptr->background_gamma * - png_ptr->screen_gamma); - break; - default: - g = 1.0; /* back_1 */ - gs = 1.0; /* back */ - } - - if ( fabs(gs - 1.0) < PNG_GAMMA_THRESHOLD) - { - back.red = (png_byte)png_ptr->background.red; - back.green = (png_byte)png_ptr->background.green; - back.blue = (png_byte)png_ptr->background.blue; - } - else - { - back.red = (png_byte)(pow( - (double)png_ptr->background.red/255, gs) * 255.0 + .5); - back.green = (png_byte)(pow( - (double)png_ptr->background.green/255, gs) * 255.0 + .5); - back.blue = (png_byte)(pow( - (double)png_ptr->background.blue/255, gs) * 255.0 + .5); - } - - back_1.red = (png_byte)(pow( - (double)png_ptr->background.red/255, g) * 255.0 + .5); - back_1.green = (png_byte)(pow( - (double)png_ptr->background.green/255, g) * 255.0 + .5); - back_1.blue = (png_byte)(pow( - (double)png_ptr->background.blue/255, g) * 255.0 + .5); - } - for (i = 0; i < num_palette; i++) - { - if (i < (int)png_ptr->num_trans && png_ptr->trans[i] != 0xff) - { - if (png_ptr->trans[i] == 0) - { - palette[i] = back; - } - else /* if (png_ptr->trans[i] != 0xff) */ - { - png_byte v, w; - - v = png_ptr->gamma_to_1[palette[i].red]; - png_composite(w, v, png_ptr->trans[i], back_1.red); - palette[i].red = png_ptr->gamma_from_1[w]; - - v = png_ptr->gamma_to_1[palette[i].green]; - png_composite(w, v, png_ptr->trans[i], back_1.green); - palette[i].green = png_ptr->gamma_from_1[w]; - - v = png_ptr->gamma_to_1[palette[i].blue]; - png_composite(w, v, png_ptr->trans[i], back_1.blue); - palette[i].blue = png_ptr->gamma_from_1[w]; - } - } - else - { - palette[i].red = png_ptr->gamma_table[palette[i].red]; - palette[i].green = png_ptr->gamma_table[palette[i].green]; - palette[i].blue = png_ptr->gamma_table[palette[i].blue]; - } - } - } - /* if (png_ptr->background_gamma_type!=PNG_BACKGROUND_GAMMA_UNKNOWN) */ - else - /* color_type != PNG_COLOR_TYPE_PALETTE */ - { - double m = (double)(((png_uint_32)1 << png_ptr->bit_depth) - 1); - double g = 1.0; - double gs = 1.0; - - switch (png_ptr->background_gamma_type) - { - case PNG_BACKGROUND_GAMMA_SCREEN: - g = (png_ptr->screen_gamma); - gs = 1.0; - break; - case PNG_BACKGROUND_GAMMA_FILE: - g = 1.0 / (png_ptr->gamma); - gs = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma); - break; - case PNG_BACKGROUND_GAMMA_UNIQUE: - g = 1.0 / (png_ptr->background_gamma); - gs = 1.0 / (png_ptr->background_gamma * - png_ptr->screen_gamma); - break; - } - - png_ptr->background_1.gray = (png_uint_16)(pow( - (double)png_ptr->background.gray / m, g) * m + .5); - png_ptr->background.gray = (png_uint_16)(pow( - (double)png_ptr->background.gray / m, gs) * m + .5); - - if ((png_ptr->background.red != png_ptr->background.green) || - (png_ptr->background.red != png_ptr->background.blue) || - (png_ptr->background.red != png_ptr->background.gray)) - { - /* RGB or RGBA with color background */ - png_ptr->background_1.red = (png_uint_16)(pow( - (double)png_ptr->background.red / m, g) * m + .5); - png_ptr->background_1.green = (png_uint_16)(pow( - (double)png_ptr->background.green / m, g) * m + .5); - png_ptr->background_1.blue = (png_uint_16)(pow( - (double)png_ptr->background.blue / m, g) * m + .5); - png_ptr->background.red = (png_uint_16)(pow( - (double)png_ptr->background.red / m, gs) * m + .5); - png_ptr->background.green = (png_uint_16)(pow( - (double)png_ptr->background.green / m, gs) * m + .5); - png_ptr->background.blue = (png_uint_16)(pow( - (double)png_ptr->background.blue / m, gs) * m + .5); - } - else - { - /* GRAY, GRAY ALPHA, RGB, or RGBA with gray background */ - png_ptr->background_1.red = png_ptr->background_1.green - = png_ptr->background_1.blue = png_ptr->background_1.gray; - png_ptr->background.red = png_ptr->background.green - = png_ptr->background.blue = png_ptr->background.gray; - } - } - } - else - /* transformation does not include PNG_BACKGROUND */ -#endif /* PNG_READ_BACKGROUND_SUPPORTED */ - if (color_type == PNG_COLOR_TYPE_PALETTE) - { - png_colorp palette = png_ptr->palette; - int num_palette = png_ptr->num_palette; - int i; - - for (i = 0; i < num_palette; i++) - { - palette[i].red = png_ptr->gamma_table[palette[i].red]; - palette[i].green = png_ptr->gamma_table[palette[i].green]; - palette[i].blue = png_ptr->gamma_table[palette[i].blue]; - } - } - } -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - else -#endif -#endif /* PNG_READ_GAMMA_SUPPORTED && PNG_FLOATING_POINT_SUPPORTED */ -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - /* No GAMMA transformation */ - if ((png_ptr->transformations & PNG_BACKGROUND) && - (color_type == PNG_COLOR_TYPE_PALETTE)) - { - int i; - int istop = (int)png_ptr->num_trans; - png_color back; - png_colorp palette = png_ptr->palette; - - back.red = (png_byte)png_ptr->background.red; - back.green = (png_byte)png_ptr->background.green; - back.blue = (png_byte)png_ptr->background.blue; - - for (i = 0; i < istop; i++) - { - if (png_ptr->trans[i] == 0) - { - palette[i] = back; - } - else if (png_ptr->trans[i] != 0xff) - { - /* The png_composite() macro is defined in png.h */ - png_composite(palette[i].red, palette[i].red, - png_ptr->trans[i], back.red); - png_composite(palette[i].green, palette[i].green, - png_ptr->trans[i], back.green); - png_composite(palette[i].blue, palette[i].blue, - png_ptr->trans[i], back.blue); - } - } - } -#endif /* PNG_READ_BACKGROUND_SUPPORTED */ - -#if defined(PNG_READ_SHIFT_SUPPORTED) - if ((png_ptr->transformations & PNG_SHIFT) && - (color_type == PNG_COLOR_TYPE_PALETTE)) - { - png_uint_16 i; - png_uint_16 istop = png_ptr->num_palette; - int sr = 8 - png_ptr->sig_bit.red; - int sg = 8 - png_ptr->sig_bit.green; - int sb = 8 - png_ptr->sig_bit.blue; - - if (sr < 0 || sr > 8) - sr = 0; - if (sg < 0 || sg > 8) - sg = 0; - if (sb < 0 || sb > 8) - sb = 0; - for (i = 0; i < istop; i++) - { - png_ptr->palette[i].red >>= sr; - png_ptr->palette[i].green >>= sg; - png_ptr->palette[i].blue >>= sb; - } - } -#endif /* PNG_READ_SHIFT_SUPPORTED */ - } -#if !defined(PNG_READ_GAMMA_SUPPORTED) && !defined(PNG_READ_SHIFT_SUPPORTED) \ - && !defined(PNG_READ_BACKGROUND_SUPPORTED) - if(png_ptr) - return; -#endif -} - -/* Modify the info structure to reflect the transformations. The - * info should be updated so a PNG file could be written with it, - * assuming the transformations result in valid PNG data. - */ -void /* PRIVATE */ -png_read_transform_info(png_structp png_ptr, png_infop info_ptr) -{ - png_debug(1, "in png_read_transform_info\n"); -#if defined(PNG_READ_EXPAND_SUPPORTED) - if (png_ptr->transformations & PNG_EXPAND) - { - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (png_ptr->num_trans) - info_ptr->color_type = PNG_COLOR_TYPE_RGB_ALPHA; - else - info_ptr->color_type = PNG_COLOR_TYPE_RGB; - info_ptr->bit_depth = 8; - info_ptr->num_trans = 0; - } - else - { - if (png_ptr->num_trans) - info_ptr->color_type |= PNG_COLOR_MASK_ALPHA; - if (info_ptr->bit_depth < 8) - info_ptr->bit_depth = 8; - info_ptr->num_trans = 0; - } - } -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->transformations & PNG_BACKGROUND) - { - info_ptr->color_type &= ~PNG_COLOR_MASK_ALPHA; - info_ptr->num_trans = 0; - info_ptr->background = png_ptr->background; - } -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (png_ptr->transformations & PNG_GAMMA) - { -#ifdef PNG_FLOATING_POINT_SUPPORTED - info_ptr->gamma = png_ptr->gamma; -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - info_ptr->int_gamma = png_ptr->int_gamma; -#endif - } -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) - if ((png_ptr->transformations & PNG_16_TO_8) && (info_ptr->bit_depth == 16)) - info_ptr->bit_depth = 8; -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) - if (png_ptr->transformations & PNG_DITHER) - { - if (((info_ptr->color_type == PNG_COLOR_TYPE_RGB) || - (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)) && - png_ptr->palette_lookup && info_ptr->bit_depth == 8) - { - info_ptr->color_type = PNG_COLOR_TYPE_PALETTE; - } - } -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) - if ((png_ptr->transformations & PNG_PACK) && (info_ptr->bit_depth < 8)) - info_ptr->bit_depth = 8; -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) - if (png_ptr->transformations & PNG_GRAY_TO_RGB) - info_ptr->color_type |= PNG_COLOR_MASK_COLOR; -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - if (png_ptr->transformations & PNG_RGB_TO_GRAY) - info_ptr->color_type &= ~PNG_COLOR_MASK_COLOR; -#endif - - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - info_ptr->channels = 1; - else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR) - info_ptr->channels = 3; - else - info_ptr->channels = 1; - -#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED) - if (png_ptr->transformations & PNG_STRIP_ALPHA) - info_ptr->color_type &= ~PNG_COLOR_MASK_ALPHA; -#endif - - if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA) - info_ptr->channels++; - -#if defined(PNG_READ_FILLER_SUPPORTED) - /* STRIP_ALPHA and FILLER allowed: MASK_ALPHA bit stripped above */ - if ((png_ptr->transformations & PNG_FILLER) && - ((info_ptr->color_type == PNG_COLOR_TYPE_RGB) || - (info_ptr->color_type == PNG_COLOR_TYPE_GRAY))) - { - info_ptr->channels++; -#if 0 /* if adding a true alpha channel not just filler */ - info_ptr->color_type |= PNG_COLOR_MASK_ALPHA; -#endif - } -#endif - -#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) && \ -defined(PNG_READ_USER_TRANSFORM_SUPPORTED) - if(png_ptr->transformations & PNG_USER_TRANSFORM) - { - if(info_ptr->bit_depth < png_ptr->user_transform_depth) - info_ptr->bit_depth = png_ptr->user_transform_depth; - if(info_ptr->channels < png_ptr->user_transform_channels) - info_ptr->channels = png_ptr->user_transform_channels; - } -#endif - - info_ptr->pixel_depth = (png_byte)(info_ptr->channels * - info_ptr->bit_depth); - info_ptr->rowbytes = ((info_ptr->width * info_ptr->pixel_depth + 7) >> 3); - -#if !defined(PNG_READ_EXPAND_SUPPORTED) - if(png_ptr) - return; -#endif -} - -/* Transform the row. The order of transformations is significant, - * and is very touchy. If you add a transformation, take care to - * decide how it fits in with the other transformations here. - */ -void /* PRIVATE */ -png_do_read_transformations(png_structp png_ptr) -{ - png_debug(1, "in png_do_read_transformations\n"); -#if !defined(PNG_USELESS_TESTS_SUPPORTED) - if (png_ptr->row_buf == NULL) - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char msg[50]; - - sprintf(msg, "NULL row buffer for row %ld, pass %d", png_ptr->row_number, - png_ptr->pass); - png_error(png_ptr, msg); -#else - png_error(png_ptr, "NULL row buffer"); -#endif - } -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) - if (png_ptr->transformations & PNG_EXPAND) - { - if (png_ptr->row_info.color_type == PNG_COLOR_TYPE_PALETTE) - { - png_do_expand_palette(&(png_ptr->row_info), png_ptr->row_buf + 1, - png_ptr->palette, png_ptr->trans, png_ptr->num_trans); - } - else - { - if (png_ptr->num_trans) - png_do_expand(&(png_ptr->row_info), png_ptr->row_buf + 1, - &(png_ptr->trans_values)); - else - png_do_expand(&(png_ptr->row_info), png_ptr->row_buf + 1, - NULL); - } - } -#endif - -#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED) - if (png_ptr->transformations & PNG_STRIP_ALPHA) - png_do_strip_filler(&(png_ptr->row_info), png_ptr->row_buf + 1, - PNG_FLAG_FILLER_AFTER); -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - if (png_ptr->transformations & PNG_RGB_TO_GRAY) - { - int rgb_error = - png_do_rgb_to_gray(png_ptr, &(png_ptr->row_info), png_ptr->row_buf + 1); - if(rgb_error) - { - png_ptr->rgb_to_gray_status=1; - if(png_ptr->transformations == PNG_RGB_TO_GRAY_WARN) - png_warning(png_ptr, "png_do_rgb_to_gray found nongray pixel"); - if(png_ptr->transformations == PNG_RGB_TO_GRAY_ERR) - png_error(png_ptr, "png_do_rgb_to_gray found nongray pixel"); - } - } -#endif - -/* -From Andreas Dilger e-mail to png-implement, 26 March 1998: - - In most cases, the "simple transparency" should be done prior to doing - gray-to-RGB, or you will have to test 3x as many bytes to check if a - pixel is transparent. You would also need to make sure that the - transparency information is upgraded to RGB. - - To summarize, the current flow is: - - Gray + simple transparency -> compare 1 or 2 gray bytes and composite - with background "in place" if transparent, - convert to RGB if necessary - - Gray + alpha -> composite with gray background and remove alpha bytes, - convert to RGB if necessary - - To support RGB backgrounds for gray images we need: - - Gray + simple transparency -> convert to RGB + simple transparency, compare - 3 or 6 bytes and composite with background - "in place" if transparent (3x compare/pixel - compared to doing composite with gray bkgrnd) - - Gray + alpha -> convert to RGB + alpha, composite with background and - remove alpha bytes (3x float operations/pixel - compared with composite on gray background) - - Greg's change will do this. The reason it wasn't done before is for - performance, as this increases the per-pixel operations. If we would check - in advance if the background was gray or RGB, and position the gray-to-RGB - transform appropriately, then it would save a lot of work/time. - */ - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) - /* if gray -> RGB, do so now only if background is non-gray; else do later - * for performance reasons */ - if ((png_ptr->transformations & PNG_GRAY_TO_RGB) && - !(png_ptr->mode & PNG_BACKGROUND_IS_GRAY)) - png_do_gray_to_rgb(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - if ((png_ptr->transformations & PNG_BACKGROUND) && - ((png_ptr->num_trans != 0 ) || - (png_ptr->color_type & PNG_COLOR_MASK_ALPHA))) - png_do_background(&(png_ptr->row_info), png_ptr->row_buf + 1, - &(png_ptr->trans_values), &(png_ptr->background) -#if defined(PNG_READ_GAMMA_SUPPORTED) - , &(png_ptr->background_1), - png_ptr->gamma_table, png_ptr->gamma_from_1, - png_ptr->gamma_to_1, png_ptr->gamma_16_table, - png_ptr->gamma_16_from_1, png_ptr->gamma_16_to_1, - png_ptr->gamma_shift -#endif -); -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) - if ((png_ptr->transformations & PNG_GAMMA) && -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - !((png_ptr->transformations & PNG_BACKGROUND) && - ((png_ptr->num_trans != 0) || - (png_ptr->color_type & PNG_COLOR_MASK_ALPHA))) && -#endif - (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE)) - png_do_gamma(&(png_ptr->row_info), png_ptr->row_buf + 1, - png_ptr->gamma_table, png_ptr->gamma_16_table, - png_ptr->gamma_shift); -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) - if (png_ptr->transformations & PNG_16_TO_8) - png_do_chop(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) - if (png_ptr->transformations & PNG_DITHER) - { - png_do_dither((png_row_infop)&(png_ptr->row_info), png_ptr->row_buf + 1, - png_ptr->palette_lookup, png_ptr->dither_index); - if(png_ptr->row_info.rowbytes == (png_uint_32)0) - png_error(png_ptr, "png_do_dither returned rowbytes=0"); - } -#endif - -#if defined(PNG_READ_INVERT_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_MONO) - png_do_invert(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) - if (png_ptr->transformations & PNG_SHIFT) - png_do_unshift(&(png_ptr->row_info), png_ptr->row_buf + 1, - &(png_ptr->shift)); -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) - if (png_ptr->transformations & PNG_PACK) - png_do_unpack(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) - if (png_ptr->transformations & PNG_BGR) - png_do_bgr(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - png_do_packswap(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) - /* if gray -> RGB, do so now only if we did not do so above */ - if ((png_ptr->transformations & PNG_GRAY_TO_RGB) && - (png_ptr->mode & PNG_BACKGROUND_IS_GRAY)) - png_do_gray_to_rgb(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_FILLER_SUPPORTED) - if (png_ptr->transformations & PNG_FILLER) - png_do_read_filler(&(png_ptr->row_info), png_ptr->row_buf + 1, - (png_uint_32)png_ptr->filler, png_ptr->flags); -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_ALPHA) - png_do_read_invert_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_ALPHA) - png_do_read_swap_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_SWAP_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_BYTES) - png_do_swap(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) - if (png_ptr->transformations & PNG_USER_TRANSFORM) - { - if(png_ptr->read_user_transform_fn != NULL) - (*(png_ptr->read_user_transform_fn)) /* user read transform function */ - (png_ptr, /* png_ptr */ - &(png_ptr->row_info), /* row_info: */ - /* png_uint_32 width; width of row */ - /* png_uint_32 rowbytes; number of bytes in row */ - /* png_byte color_type; color type of pixels */ - /* png_byte bit_depth; bit depth of samples */ - /* png_byte channels; number of channels (1-4) */ - /* png_byte pixel_depth; bits per pixel (depth*channels) */ - png_ptr->row_buf + 1); /* start of pixel data for row */ -#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) - if(png_ptr->user_transform_depth) - png_ptr->row_info.bit_depth = png_ptr->user_transform_depth; - if(png_ptr->user_transform_channels) - png_ptr->row_info.channels = png_ptr->user_transform_channels; -#endif - png_ptr->row_info.pixel_depth = (png_byte)(png_ptr->row_info.bit_depth * - png_ptr->row_info.channels); - png_ptr->row_info.rowbytes = (png_ptr->row_info.width * - png_ptr->row_info.pixel_depth+7)>>3; - } -#endif - -} - -#if defined(PNG_READ_PACK_SUPPORTED) -/* Unpack pixels of 1, 2, or 4 bits per pixel into 1 byte per pixel, - * without changing the actual values. Thus, if you had a row with - * a bit depth of 1, you would end up with bytes that only contained - * the numbers 0 or 1. If you would rather they contain 0 and 255, use - * png_do_shift() after this. - */ -void /* PRIVATE */ -png_do_unpack(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_unpack\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL && row_info->bit_depth < 8) -#else - if (row_info->bit_depth < 8) -#endif - { - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - switch (row_info->bit_depth) - { - case 1: - { - png_bytep sp = row + (png_size_t)((row_width - 1) >> 3); - png_bytep dp = row + (png_size_t)row_width - 1; - png_uint_32 shift = 7 - (int)((row_width + 7) & 0x07); - for (i = 0; i < row_width; i++) - { - *dp = (png_byte)((*sp >> shift) & 0x01); - if (shift == 7) - { - shift = 0; - sp--; - } - else - shift++; - - dp--; - } - break; - } - case 2: - { - - png_bytep sp = row + (png_size_t)((row_width - 1) >> 2); - png_bytep dp = row + (png_size_t)row_width - 1; - png_uint_32 shift = (int)((3 - ((row_width + 3) & 0x03)) << 1); - for (i = 0; i < row_width; i++) - { - *dp = (png_byte)((*sp >> shift) & 0x03); - if (shift == 6) - { - shift = 0; - sp--; - } - else - shift += 2; - - dp--; - } - break; - } - case 4: - { - png_bytep sp = row + (png_size_t)((row_width - 1) >> 1); - png_bytep dp = row + (png_size_t)row_width - 1; - png_uint_32 shift = (int)((1 - ((row_width + 1) & 0x01)) << 2); - for (i = 0; i < row_width; i++) - { - *dp = (png_byte)((*sp >> shift) & 0x0f); - if (shift == 4) - { - shift = 0; - sp--; - } - else - shift = 4; - - dp--; - } - break; - } - } - row_info->bit_depth = 8; - row_info->pixel_depth = (png_byte)(8 * row_info->channels); - row_info->rowbytes = row_width * row_info->channels; - } -} -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) -/* Reverse the effects of png_do_shift. This routine merely shifts the - * pixels back to their significant bits values. Thus, if you have - * a row of bit depth 8, but only 5 are significant, this will shift - * the values back to 0 through 31. - */ -void /* PRIVATE */ -png_do_unshift(png_row_infop row_info, png_bytep row, png_color_8p sig_bits) -{ - png_debug(1, "in png_do_unshift\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && sig_bits != NULL && -#endif - row_info->color_type != PNG_COLOR_TYPE_PALETTE) - { - int shift[4]; - int channels = 0; - int c; - png_uint_16 value = 0; - png_uint_32 row_width = row_info->width; - - if (row_info->color_type & PNG_COLOR_MASK_COLOR) - { - shift[channels++] = row_info->bit_depth - sig_bits->red; - shift[channels++] = row_info->bit_depth - sig_bits->green; - shift[channels++] = row_info->bit_depth - sig_bits->blue; - } - else - { - shift[channels++] = row_info->bit_depth - sig_bits->gray; - } - if (row_info->color_type & PNG_COLOR_MASK_ALPHA) - { - shift[channels++] = row_info->bit_depth - sig_bits->alpha; - } - - for (c = 0; c < channels; c++) - { - if (shift[c] <= 0) - shift[c] = 0; - else - value = 1; - } - - if (!value) - return; - - switch (row_info->bit_depth) - { - case 2: - { - png_bytep bp; - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - - for (bp = row, i = 0; i < istop; i++) - { - *bp >>= 1; - *bp++ &= 0x55; - } - break; - } - case 4: - { - png_bytep bp = row; - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - png_byte mask = (png_byte)((((int)0xf0 >> shift[0]) & (int)0xf0) | - (png_byte)((int)0xf >> shift[0])); - - for (i = 0; i < istop; i++) - { - *bp >>= shift[0]; - *bp++ &= mask; - } - break; - } - case 8: - { - png_bytep bp = row; - png_uint_32 i; - png_uint_32 istop = row_width * channels; - - for (i = 0; i < istop; i++) - { - *bp++ >>= shift[i%channels]; - } - break; - } - case 16: - { - png_bytep bp = row; - png_uint_32 i; - png_uint_32 istop = channels * row_width; - - for (i = 0; i < istop; i++) - { - value = (png_uint_16)((*bp << 8) + *(bp + 1)); - value >>= shift[i%channels]; - *bp++ = (png_byte)(value >> 8); - *bp++ = (png_byte)(value & 0xff); - } - break; - } - } - } -} -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) -/* chop rows of bit depth 16 down to 8 */ -void /* PRIVATE */ -png_do_chop(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_chop\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL && row_info->bit_depth == 16) -#else - if (row_info->bit_depth == 16) -#endif - { - png_bytep sp = row; - png_bytep dp = row; - png_uint_32 i; - png_uint_32 istop = row_info->width * row_info->channels; - - for (i = 0; i> 8)) >> 8; - * - * Approximate calculation with shift/add instead of multiply/divide: - * *dp = ((((png_uint_32)(*sp) << 8) | - * (png_uint_32)((int)(*(sp + 1)) - *sp)) + 128) >> 8; - * - * What we actually do to avoid extra shifting and conversion: - */ - - *dp = *sp + ((((int)(*(sp + 1)) - *sp) > 128) ? 1 : 0); -#else - /* Simply discard the low order byte */ - *dp = *sp; -#endif - } - row_info->bit_depth = 8; - row_info->pixel_depth = (png_byte)(8 * row_info->channels); - row_info->rowbytes = row_info->width * row_info->channels; - } -} -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) -void /* PRIVATE */ -png_do_read_swap_alpha(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_read_swap_alpha\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - png_uint_32 row_width = row_info->width; - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - /* This converts from RGBA to ARGB */ - if (row_info->bit_depth == 8) - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_byte save; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - save = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = save; - } - } - /* This converts from RRGGBBAA to AARRGGBB */ - else - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_byte save[2]; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - save[0] = *(--sp); - save[1] = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = save[0]; - *(--dp) = save[1]; - } - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - /* This converts from GA to AG */ - if (row_info->bit_depth == 8) - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_byte save; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - save = *(--sp); - *(--dp) = *(--sp); - *(--dp) = save; - } - } - /* This converts from GGAA to AAGG */ - else - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_byte save[2]; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - save[0] = *(--sp); - save[1] = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = save[0]; - *(--dp) = save[1]; - } - } - } - } -} -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) -void /* PRIVATE */ -png_do_read_invert_alpha(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_read_invert_alpha\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - png_uint_32 row_width = row_info->width; - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - /* This inverts the alpha channel in RGBA */ - if (row_info->bit_depth == 8) - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - *(--dp) = (png_byte)(255 - *(--sp)); - -/* This does nothing: - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - We can replace it with: -*/ - sp-=3; - dp=sp; - } - } - /* This inverts the alpha channel in RRGGBBAA */ - else - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - *(--dp) = (png_byte)(255 - *(--sp)); - *(--dp) = (png_byte)(255 - *(--sp)); - -/* This does nothing: - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - We can replace it with: -*/ - sp-=6; - dp=sp; - } - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - /* This inverts the alpha channel in GA */ - if (row_info->bit_depth == 8) - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - *(--dp) = (png_byte)(255 - *(--sp)); - *(--dp) = *(--sp); - } - } - /* This inverts the alpha channel in GGAA */ - else - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - *(--dp) = (png_byte)(255 - *(--sp)); - *(--dp) = (png_byte)(255 - *(--sp)); -/* - *(--dp) = *(--sp); - *(--dp) = *(--sp); -*/ - sp-=2; - dp=sp; - } - } - } - } -} -#endif - -#if defined(PNG_READ_FILLER_SUPPORTED) -/* Add filler channel if we have RGB color */ -void /* PRIVATE */ -png_do_read_filler(png_row_infop row_info, png_bytep row, - png_uint_32 filler, png_uint_32 flags) -{ - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - png_byte hi_filler = (png_byte)((filler>>8) & 0xff); - png_byte lo_filler = (png_byte)(filler & 0xff); - - png_debug(1, "in png_do_read_filler\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - row_info->color_type == PNG_COLOR_TYPE_GRAY) - { - if(row_info->bit_depth == 8) - { - /* This changes the data from G to GX */ - if (flags & PNG_FLAG_FILLER_AFTER) - { - png_bytep sp = row + (png_size_t)row_width; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 1; i < row_width; i++) - { - *(--dp) = lo_filler; - *(--dp) = *(--sp); - } - *(--dp) = lo_filler; - row_info->channels = 2; - row_info->pixel_depth = 16; - row_info->rowbytes = row_width * 2; - } - /* This changes the data from G to XG */ - else - { - png_bytep sp = row + (png_size_t)row_width; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 0; i < row_width; i++) - { - *(--dp) = *(--sp); - *(--dp) = lo_filler; - } - row_info->channels = 2; - row_info->pixel_depth = 16; - row_info->rowbytes = row_width * 2; - } - } - else if(row_info->bit_depth == 16) - { - /* This changes the data from GG to GGXX */ - if (flags & PNG_FLAG_FILLER_AFTER) - { - png_bytep sp = row + (png_size_t)row_width; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 1; i < row_width; i++) - { - *(--dp) = hi_filler; - *(--dp) = lo_filler; - *(--dp) = *(--sp); - *(--dp) = *(--sp); - } - *(--dp) = hi_filler; - *(--dp) = lo_filler; - row_info->channels = 2; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - } - /* This changes the data from GG to XXGG */ - else - { - png_bytep sp = row + (png_size_t)row_width; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 0; i < row_width; i++) - { - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = hi_filler; - *(--dp) = lo_filler; - } - row_info->channels = 2; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - } - } - } /* COLOR_TYPE == GRAY */ - else if (row_info->color_type == PNG_COLOR_TYPE_RGB) - { - if(row_info->bit_depth == 8) - { - /* This changes the data from RGB to RGBX */ - if (flags & PNG_FLAG_FILLER_AFTER) - { - png_bytep sp = row + (png_size_t)row_width * 3; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 1; i < row_width; i++) - { - *(--dp) = lo_filler; - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - } - *(--dp) = lo_filler; - row_info->channels = 4; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - } - /* This changes the data from RGB to XRGB */ - else - { - png_bytep sp = row + (png_size_t)row_width * 3; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 0; i < row_width; i++) - { - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = lo_filler; - } - row_info->channels = 4; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - } - } - else if(row_info->bit_depth == 16) - { - /* This changes the data from RRGGBB to RRGGBBXX */ - if (flags & PNG_FLAG_FILLER_AFTER) - { - png_bytep sp = row + (png_size_t)row_width * 3; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 1; i < row_width; i++) - { - *(--dp) = hi_filler; - *(--dp) = lo_filler; - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - } - *(--dp) = hi_filler; - *(--dp) = lo_filler; - row_info->channels = 4; - row_info->pixel_depth = 64; - row_info->rowbytes = row_width * 8; - } - /* This changes the data from RRGGBB to XXRRGGBB */ - else - { - png_bytep sp = row + (png_size_t)row_width * 3; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 0; i < row_width; i++) - { - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = hi_filler; - *(--dp) = lo_filler; - } - row_info->channels = 4; - row_info->pixel_depth = 64; - row_info->rowbytes = row_width * 8; - } - } - } /* COLOR_TYPE == RGB */ -} -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) -/* expand grayscale files to RGB, with or without alpha */ -void /* PRIVATE */ -png_do_gray_to_rgb(png_row_infop row_info, png_bytep row) -{ - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - png_debug(1, "in png_do_gray_to_rgb\n"); - if (row_info->bit_depth >= 8 && -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - !(row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - if (row_info->color_type == PNG_COLOR_TYPE_GRAY) - { - if (row_info->bit_depth == 8) - { - png_bytep sp = row + (png_size_t)row_width - 1; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 0; i < row_width; i++) - { - *(dp--) = *sp; - *(dp--) = *sp; - *(dp--) = *(sp--); - } - } - else - { - png_bytep sp = row + (png_size_t)row_width * 2 - 1; - png_bytep dp = sp + (png_size_t)row_width * 4; - for (i = 0; i < row_width; i++) - { - *(dp--) = *sp; - *(dp--) = *(sp - 1); - *(dp--) = *sp; - *(dp--) = *(sp - 1); - *(dp--) = *(sp--); - *(dp--) = *(sp--); - } - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - if (row_info->bit_depth == 8) - { - png_bytep sp = row + (png_size_t)row_width * 2 - 1; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 0; i < row_width; i++) - { - *(dp--) = *(sp--); - *(dp--) = *sp; - *(dp--) = *sp; - *(dp--) = *(sp--); - } - } - else - { - png_bytep sp = row + (png_size_t)row_width * 4 - 1; - png_bytep dp = sp + (png_size_t)row_width * 4; - for (i = 0; i < row_width; i++) - { - *(dp--) = *(sp--); - *(dp--) = *(sp--); - *(dp--) = *sp; - *(dp--) = *(sp - 1); - *(dp--) = *sp; - *(dp--) = *(sp - 1); - *(dp--) = *(sp--); - *(dp--) = *(sp--); - } - } - } - row_info->channels += (png_byte)2; - row_info->color_type |= PNG_COLOR_MASK_COLOR; - row_info->pixel_depth = (png_byte)(row_info->channels * - row_info->bit_depth); - row_info->rowbytes = ((row_width * - row_info->pixel_depth + 7) >> 3); - } -} -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) -/* reduce RGB files to grayscale, with or without alpha - * using the equation given in Poynton's ColorFAQ at - * - * Copyright (c) 1998-01-04 Charles Poynton poynton@inforamp.net - * - * Y = 0.212671 * R + 0.715160 * G + 0.072169 * B - * - * We approximate this with - * - * Y = 0.21268 * R + 0.7151 * G + 0.07217 * B - * - * which can be expressed with integers as - * - * Y = (6969 * R + 23434 * G + 2365 * B)/32768 - * - * The calculation is to be done in a linear colorspace. - * - * Other integer coefficents can be used via png_set_rgb_to_gray(). - */ -int /* PRIVATE */ -png_do_rgb_to_gray(png_structp png_ptr, png_row_infop row_info, png_bytep row) - -{ - png_uint_32 i; - - png_uint_32 row_width = row_info->width; - int rgb_error = 0; - - png_debug(1, "in png_do_rgb_to_gray\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - (row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - png_uint_32 rc = png_ptr->rgb_to_gray_red_coeff; - png_uint_32 gc = png_ptr->rgb_to_gray_green_coeff; - png_uint_32 bc = png_ptr->rgb_to_gray_blue_coeff; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - { - if (row_info->bit_depth == 8) - { -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->gamma_from_1 != NULL && png_ptr->gamma_to_1 != NULL) - { - png_bytep sp = row; - png_bytep dp = row; - - for (i = 0; i < row_width; i++) - { - png_byte red = png_ptr->gamma_to_1[*(sp++)]; - png_byte green = png_ptr->gamma_to_1[*(sp++)]; - png_byte blue = png_ptr->gamma_to_1[*(sp++)]; - if(red != green || red != blue) - { - rgb_error |= 1; - *(dp++) = png_ptr->gamma_from_1[ - (rc*red+gc*green+bc*blue)>>15]; - } - else - *(dp++) = *(sp-1); - } - } - else -#endif - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_byte red = *(sp++); - png_byte green = *(sp++); - png_byte blue = *(sp++); - if(red != green || red != blue) - { - rgb_error |= 1; - *(dp++) = (png_byte)((rc*red+gc*green+bc*blue)>>15); - } - else - *(dp++) = *(sp-1); - } - } - } - - else /* RGB bit_depth == 16 */ - { -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->gamma_16_to_1 != NULL && - png_ptr->gamma_16_from_1 != NULL) - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 red, green, blue, w; - - red = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - green = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - blue = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - - if(red == green && red == blue) - w = red; - else - { - png_uint_16 red_1 = png_ptr->gamma_16_to_1[(red&0xff) >> - png_ptr->gamma_shift][red>>8]; - png_uint_16 green_1 = png_ptr->gamma_16_to_1[(green&0xff) >> - png_ptr->gamma_shift][green>>8]; - png_uint_16 blue_1 = png_ptr->gamma_16_to_1[(blue&0xff) >> - png_ptr->gamma_shift][blue>>8]; - png_uint_16 gray16 = (png_uint_16)((rc*red_1 + gc*green_1 - + bc*blue_1)>>15); - w = png_ptr->gamma_16_from_1[(gray16&0xff) >> - png_ptr->gamma_shift][gray16 >> 8]; - rgb_error |= 1; - } - - *(dp++) = (png_byte)((w>>8) & 0xff); - *(dp++) = (png_byte)(w & 0xff); - } - } - else -#endif - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 red, green, blue, gray16; - - red = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - green = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - blue = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - - if(red != green || red != blue) - rgb_error |= 1; - gray16 = (png_uint_16)((rc*red + gc*green + bc*blue)>>15); - *(dp++) = (png_byte)((gray16>>8) & 0xff); - *(dp++) = (png_byte)(gray16 & 0xff); - } - } - } - } - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - if (row_info->bit_depth == 8) - { -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->gamma_from_1 != NULL && png_ptr->gamma_to_1 != NULL) - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_byte red = png_ptr->gamma_to_1[*(sp++)]; - png_byte green = png_ptr->gamma_to_1[*(sp++)]; - png_byte blue = png_ptr->gamma_to_1[*(sp++)]; - if(red != green || red != blue) - rgb_error |= 1; - *(dp++) = png_ptr->gamma_from_1 - [(rc*red + gc*green + bc*blue)>>15]; - *(dp++) = *(sp++); /* alpha */ - } - } - else -#endif - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_byte red = *(sp++); - png_byte green = *(sp++); - png_byte blue = *(sp++); - if(red != green || red != blue) - rgb_error |= 1; - *(dp++) = (png_byte)((gc*red + gc*green + bc*blue)>>8); - *(dp++) = *(sp++); /* alpha */ - } - } - } - else /* RGBA bit_depth == 16 */ - { -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->gamma_16_to_1 != NULL && - png_ptr->gamma_16_from_1 != NULL) - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 red, green, blue, w; - - red = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - green = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - blue = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - - if(red == green && red == blue) - w = red; - else - { - png_uint_16 red_1 = png_ptr->gamma_16_to_1[(red&0xff) >> - png_ptr->gamma_shift][red>>8]; - png_uint_16 green_1 = png_ptr->gamma_16_to_1[(green&0xff) >> - png_ptr->gamma_shift][green>>8]; - png_uint_16 blue_1 = png_ptr->gamma_16_to_1[(blue&0xff) >> - png_ptr->gamma_shift][blue>>8]; - png_uint_16 gray16 = (png_uint_16)((rc * red_1 - + gc * green_1 + bc * blue_1)>>15); - w = png_ptr->gamma_16_from_1[(gray16&0xff) >> - png_ptr->gamma_shift][gray16 >> 8]; - rgb_error |= 1; - } - - *(dp++) = (png_byte)((w>>8) & 0xff); - *(dp++) = (png_byte)(w & 0xff); - *(dp++) = *(sp++); /* alpha */ - *(dp++) = *(sp++); - } - } - else -#endif - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 red, green, blue, gray16; - red = (png_uint_16)((*(sp)<<8) | *(sp+1)); sp+=2; - green = (png_uint_16)((*(sp)<<8) | *(sp+1)); sp+=2; - blue = (png_uint_16)((*(sp)<<8) | *(sp+1)); sp+=2; - if(red != green || red != blue) - rgb_error |= 1; - gray16 = (png_uint_16)((rc*red + gc*green + bc*blue)>>15); - *(dp++) = (png_byte)((gray16>>8) & 0xff); - *(dp++) = (png_byte)(gray16 & 0xff); - *(dp++) = *(sp++); /* alpha */ - *(dp++) = *(sp++); - } - } - } - } - row_info->channels -= (png_byte)2; - row_info->color_type &= ~PNG_COLOR_MASK_COLOR; - row_info->pixel_depth = (png_byte)(row_info->channels * - row_info->bit_depth); - row_info->rowbytes = ((row_width * - row_info->pixel_depth + 7) >> 3); - } - return rgb_error; -} -#endif - -/* Build a grayscale palette. Palette is assumed to be 1 << bit_depth - * large of png_color. This lets grayscale images be treated as - * paletted. Most useful for gamma correction and simplification - * of code. - */ -void PNGAPI -png_build_grayscale_palette(int bit_depth, png_colorp palette) -{ - int num_palette; - int color_inc; - int i; - int v; - - png_debug(1, "in png_do_build_grayscale_palette\n"); - if (palette == NULL) - return; - - switch (bit_depth) - { - case 1: - num_palette = 2; - color_inc = 0xff; - break; - case 2: - num_palette = 4; - color_inc = 0x55; - break; - case 4: - num_palette = 16; - color_inc = 0x11; - break; - case 8: - num_palette = 256; - color_inc = 1; - break; - default: - num_palette = 0; - color_inc = 0; - break; - } - - for (i = 0, v = 0; i < num_palette; i++, v += color_inc) - { - palette[i].red = (png_byte)v; - palette[i].green = (png_byte)v; - palette[i].blue = (png_byte)v; - } -} - -/* This function is currently unused. Do we really need it? */ -#if defined(PNG_READ_DITHER_SUPPORTED) && defined(PNG_CORRECT_PALETTE_SUPPORTED) -void /* PRIVATE */ -png_correct_palette(png_structp png_ptr, png_colorp palette, - int num_palette) -{ - png_debug(1, "in png_correct_palette\n"); -#if defined(PNG_READ_BACKGROUND_SUPPORTED) && \ - defined(PNG_READ_GAMMA_SUPPORTED) && defined(PNG_FLOATING_POINT_SUPPORTED) - if (png_ptr->transformations & (PNG_GAMMA | PNG_BACKGROUND)) - { - png_color back, back_1; - - if (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_FILE) - { - back.red = png_ptr->gamma_table[png_ptr->background.red]; - back.green = png_ptr->gamma_table[png_ptr->background.green]; - back.blue = png_ptr->gamma_table[png_ptr->background.blue]; - - back_1.red = png_ptr->gamma_to_1[png_ptr->background.red]; - back_1.green = png_ptr->gamma_to_1[png_ptr->background.green]; - back_1.blue = png_ptr->gamma_to_1[png_ptr->background.blue]; - } - else - { - double g; - - g = 1.0 / (png_ptr->background_gamma * png_ptr->screen_gamma); - - if (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_SCREEN || - fabs(g - 1.0) < PNG_GAMMA_THRESHOLD) - { - back.red = png_ptr->background.red; - back.green = png_ptr->background.green; - back.blue = png_ptr->background.blue; - } - else - { - back.red = - (png_byte)(pow((double)png_ptr->background.red/255, g) * - 255.0 + 0.5); - back.green = - (png_byte)(pow((double)png_ptr->background.green/255, g) * - 255.0 + 0.5); - back.blue = - (png_byte)(pow((double)png_ptr->background.blue/255, g) * - 255.0 + 0.5); - } - - g = 1.0 / png_ptr->background_gamma; - - back_1.red = - (png_byte)(pow((double)png_ptr->background.red/255, g) * - 255.0 + 0.5); - back_1.green = - (png_byte)(pow((double)png_ptr->background.green/255, g) * - 255.0 + 0.5); - back_1.blue = - (png_byte)(pow((double)png_ptr->background.blue/255, g) * - 255.0 + 0.5); - } - - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - png_uint_32 i; - - for (i = 0; i < (png_uint_32)num_palette; i++) - { - if (i < png_ptr->num_trans && png_ptr->trans[i] == 0) - { - palette[i] = back; - } - else if (i < png_ptr->num_trans && png_ptr->trans[i] != 0xff) - { - png_byte v, w; - - v = png_ptr->gamma_to_1[png_ptr->palette[i].red]; - png_composite(w, v, png_ptr->trans[i], back_1.red); - palette[i].red = png_ptr->gamma_from_1[w]; - - v = png_ptr->gamma_to_1[png_ptr->palette[i].green]; - png_composite(w, v, png_ptr->trans[i], back_1.green); - palette[i].green = png_ptr->gamma_from_1[w]; - - v = png_ptr->gamma_to_1[png_ptr->palette[i].blue]; - png_composite(w, v, png_ptr->trans[i], back_1.blue); - palette[i].blue = png_ptr->gamma_from_1[w]; - } - else - { - palette[i].red = png_ptr->gamma_table[palette[i].red]; - palette[i].green = png_ptr->gamma_table[palette[i].green]; - palette[i].blue = png_ptr->gamma_table[palette[i].blue]; - } - } - } - else - { - int i; - - for (i = 0; i < num_palette; i++) - { - if (palette[i].red == (png_byte)png_ptr->trans_values.gray) - { - palette[i] = back; - } - else - { - palette[i].red = png_ptr->gamma_table[palette[i].red]; - palette[i].green = png_ptr->gamma_table[palette[i].green]; - palette[i].blue = png_ptr->gamma_table[palette[i].blue]; - } - } - } - } - else -#endif -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (png_ptr->transformations & PNG_GAMMA) - { - int i; - - for (i = 0; i < num_palette; i++) - { - palette[i].red = png_ptr->gamma_table[palette[i].red]; - palette[i].green = png_ptr->gamma_table[palette[i].green]; - palette[i].blue = png_ptr->gamma_table[palette[i].blue]; - } - } -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - else -#endif -#endif -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->transformations & PNG_BACKGROUND) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - png_color back; - - back.red = (png_byte)png_ptr->background.red; - back.green = (png_byte)png_ptr->background.green; - back.blue = (png_byte)png_ptr->background.blue; - - for (i = 0; i < (int)png_ptr->num_trans; i++) - { - if (png_ptr->trans[i] == 0) - { - palette[i].red = back.red; - palette[i].green = back.green; - palette[i].blue = back.blue; - } - else if (png_ptr->trans[i] != 0xff) - { - png_composite(palette[i].red, png_ptr->palette[i].red, - png_ptr->trans[i], back.red); - png_composite(palette[i].green, png_ptr->palette[i].green, - png_ptr->trans[i], back.green); - png_composite(palette[i].blue, png_ptr->palette[i].blue, - png_ptr->trans[i], back.blue); - } - } - } - else /* assume grayscale palette (what else could it be?) */ - { - int i; - - for (i = 0; i < num_palette; i++) - { - if (i == (png_byte)png_ptr->trans_values.gray) - { - palette[i].red = (png_byte)png_ptr->background.red; - palette[i].green = (png_byte)png_ptr->background.green; - palette[i].blue = (png_byte)png_ptr->background.blue; - } - } - } - } -#endif -} -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) -/* Replace any alpha or transparency with the supplied background color. - * "background" is already in the screen gamma, while "background_1" is - * at a gamma of 1.0. Paletted files have already been taken care of. - */ -void /* PRIVATE */ -png_do_background(png_row_infop row_info, png_bytep row, - png_color_16p trans_values, png_color_16p background -#if defined(PNG_READ_GAMMA_SUPPORTED) - , png_color_16p background_1, - png_bytep gamma_table, png_bytep gamma_from_1, png_bytep gamma_to_1, - png_uint_16pp gamma_16, png_uint_16pp gamma_16_from_1, - png_uint_16pp gamma_16_to_1, int gamma_shift -#endif - ) -{ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - int shift; - - png_debug(1, "in png_do_background\n"); - if (background != NULL && -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - (!(row_info->color_type & PNG_COLOR_MASK_ALPHA) || - (row_info->color_type != PNG_COLOR_TYPE_PALETTE && trans_values))) - { - switch (row_info->color_type) - { - case PNG_COLOR_TYPE_GRAY: - { - switch (row_info->bit_depth) - { - case 1: - { - sp = row; - shift = 7; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x01) - == trans_values->gray) - { - *sp &= (png_byte)((0x7f7f >> (7 - shift)) & 0xff); - *sp |= (png_byte)(background->gray << shift); - } - if (!shift) - { - shift = 7; - sp++; - } - else - shift--; - } - break; - } - case 2: - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_table != NULL) - { - sp = row; - shift = 6; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x03) - == trans_values->gray) - { - *sp &= (png_byte)((0x3f3f >> (6 - shift)) & 0xff); - *sp |= (png_byte)(background->gray << shift); - } - else - { - png_byte p = (png_byte)((*sp >> shift) & 0x03); - png_byte g = (png_byte)((gamma_table [p | (p << 2) | - (p << 4) | (p << 6)] >> 6) & 0x03); - *sp &= (png_byte)((0x3f3f >> (6 - shift)) & 0xff); - *sp |= (png_byte)(g << shift); - } - if (!shift) - { - shift = 6; - sp++; - } - else - shift -= 2; - } - } - else -#endif - { - sp = row; - shift = 6; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x03) - == trans_values->gray) - { - *sp &= (png_byte)((0x3f3f >> (6 - shift)) & 0xff); - *sp |= (png_byte)(background->gray << shift); - } - if (!shift) - { - shift = 6; - sp++; - } - else - shift -= 2; - } - } - break; - } - case 4: - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_table != NULL) - { - sp = row; - shift = 4; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x0f) - == trans_values->gray) - { - *sp &= (png_byte)((0xf0f >> (4 - shift)) & 0xff); - *sp |= (png_byte)(background->gray << shift); - } - else - { - png_byte p = (png_byte)((*sp >> shift) & 0x0f); - png_byte g = (png_byte)((gamma_table[p | - (p << 4)] >> 4) & 0x0f); - *sp &= (png_byte)((0xf0f >> (4 - shift)) & 0xff); - *sp |= (png_byte)(g << shift); - } - if (!shift) - { - shift = 4; - sp++; - } - else - shift -= 4; - } - } - else -#endif - { - sp = row; - shift = 4; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x0f) - == trans_values->gray) - { - *sp &= (png_byte)((0xf0f >> (4 - shift)) & 0xff); - *sp |= (png_byte)(background->gray << shift); - } - if (!shift) - { - shift = 4; - sp++; - } - else - shift -= 4; - } - } - break; - } - case 8: - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_table != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp++) - { - if (*sp == trans_values->gray) - { - *sp = (png_byte)background->gray; - } - else - { - *sp = gamma_table[*sp]; - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp++) - { - if (*sp == trans_values->gray) - { - *sp = (png_byte)background->gray; - } - } - } - break; - } - case 16: - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_16 != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 2) - { - png_uint_16 v; - - v = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - if (v == trans_values->gray) - { - /* background is already in screen gamma */ - *sp = (png_byte)((background->gray >> 8) & 0xff); - *(sp + 1) = (png_byte)(background->gray & 0xff); - } - else - { - v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 2) - { - png_uint_16 v; - - v = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - if (v == trans_values->gray) - { - *sp = (png_byte)((background->gray >> 8) & 0xff); - *(sp + 1) = (png_byte)(background->gray & 0xff); - } - } - } - break; - } - } - break; - } - case PNG_COLOR_TYPE_RGB: - { - if (row_info->bit_depth == 8) - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_table != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 3) - { - if (*sp == trans_values->red && - *(sp + 1) == trans_values->green && - *(sp + 2) == trans_values->blue) - { - *sp = (png_byte)background->red; - *(sp + 1) = (png_byte)background->green; - *(sp + 2) = (png_byte)background->blue; - } - else - { - *sp = gamma_table[*sp]; - *(sp + 1) = gamma_table[*(sp + 1)]; - *(sp + 2) = gamma_table[*(sp + 2)]; - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 3) - { - if (*sp == trans_values->red && - *(sp + 1) == trans_values->green && - *(sp + 2) == trans_values->blue) - { - *sp = (png_byte)background->red; - *(sp + 1) = (png_byte)background->green; - *(sp + 2) = (png_byte)background->blue; - } - } - } - } - else /* if (row_info->bit_depth == 16) */ - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_16 != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 6) - { - png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - png_uint_16 g = (png_uint_16)(((*(sp+2)) << 8) + *(sp+3)); - png_uint_16 b = (png_uint_16)(((*(sp+4)) << 8) + *(sp+5)); - if (r == trans_values->red && g == trans_values->green && - b == trans_values->blue) - { - /* background is already in screen gamma */ - *sp = (png_byte)((background->red >> 8) & 0xff); - *(sp + 1) = (png_byte)(background->red & 0xff); - *(sp + 2) = (png_byte)((background->green >> 8) & 0xff); - *(sp + 3) = (png_byte)(background->green & 0xff); - *(sp + 4) = (png_byte)((background->blue >> 8) & 0xff); - *(sp + 5) = (png_byte)(background->blue & 0xff); - } - else - { - png_uint_16 v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)]; - *(sp + 2) = (png_byte)((v >> 8) & 0xff); - *(sp + 3) = (png_byte)(v & 0xff); - v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)]; - *(sp + 4) = (png_byte)((v >> 8) & 0xff); - *(sp + 5) = (png_byte)(v & 0xff); - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 6) - { - png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp+1)); - png_uint_16 g = (png_uint_16)(((*(sp+2)) << 8) + *(sp+3)); - png_uint_16 b = (png_uint_16)(((*(sp+4)) << 8) + *(sp+5)); - - if (r == trans_values->red && g == trans_values->green && - b == trans_values->blue) - { - *sp = (png_byte)((background->red >> 8) & 0xff); - *(sp + 1) = (png_byte)(background->red & 0xff); - *(sp + 2) = (png_byte)((background->green >> 8) & 0xff); - *(sp + 3) = (png_byte)(background->green & 0xff); - *(sp + 4) = (png_byte)((background->blue >> 8) & 0xff); - *(sp + 5) = (png_byte)(background->blue & 0xff); - } - } - } - } - break; - } - case PNG_COLOR_TYPE_GRAY_ALPHA: - { - if (row_info->bit_depth == 8) - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_to_1 != NULL && gamma_from_1 != NULL && - gamma_table != NULL) - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 2, dp++) - { - png_uint_16 a = *(sp + 1); - - if (a == 0xff) - { - *dp = gamma_table[*sp]; - } - else if (a == 0) - { - /* background is already in screen gamma */ - *dp = (png_byte)background->gray; - } - else - { - png_byte v, w; - - v = gamma_to_1[*sp]; - png_composite(w, v, a, background_1->gray); - *dp = gamma_from_1[w]; - } - } - } - else -#endif - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 2, dp++) - { - png_byte a = *(sp + 1); - - if (a == 0xff) - { - *dp = *sp; - } -#if defined(PNG_READ_GAMMA_SUPPORTED) - else if (a == 0) - { - *dp = (png_byte)background->gray; - } - else - { - png_composite(*dp, *sp, a, background_1->gray); - } -#else - *dp = (png_byte)background->gray; -#endif - } - } - } - else /* if (png_ptr->bit_depth == 16) */ - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_16 != NULL && gamma_16_from_1 != NULL && - gamma_16_to_1 != NULL) - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 4, dp += 2) - { - png_uint_16 a = (png_uint_16)(((*(sp+2)) << 8) + *(sp+3)); - - if (a == (png_uint_16)0xffff) - { - png_uint_16 v; - - v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; - *dp = (png_byte)((v >> 8) & 0xff); - *(dp + 1) = (png_byte)(v & 0xff); - } -#if defined(PNG_READ_GAMMA_SUPPORTED) - else if (a == 0) -#else - else -#endif - { - /* background is already in screen gamma */ - *dp = (png_byte)((background->gray >> 8) & 0xff); - *(dp + 1) = (png_byte)(background->gray & 0xff); - } -#if defined(PNG_READ_GAMMA_SUPPORTED) - else - { - png_uint_16 g, v, w; - - g = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp]; - png_composite_16(v, g, a, background_1->gray); - w = gamma_16_from_1[(v&0xff) >> gamma_shift][v >> 8]; - *dp = (png_byte)((w >> 8) & 0xff); - *(dp + 1) = (png_byte)(w & 0xff); - } -#endif - } - } - else -#endif - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 4, dp += 2) - { - png_uint_16 a = (png_uint_16)(((*(sp+2)) << 8) + *(sp+3)); - if (a == (png_uint_16)0xffff) - { - png_memcpy(dp, sp, 2); - } -#if defined(PNG_READ_GAMMA_SUPPORTED) - else if (a == 0) -#else - else -#endif - { - *dp = (png_byte)((background->gray >> 8) & 0xff); - *(dp + 1) = (png_byte)(background->gray & 0xff); - } -#if defined(PNG_READ_GAMMA_SUPPORTED) - else - { - png_uint_16 g, v; - - g = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - png_composite_16(v, g, a, background_1->gray); - *dp = (png_byte)((v >> 8) & 0xff); - *(dp + 1) = (png_byte)(v & 0xff); - } -#endif - } - } - } - break; - } - case PNG_COLOR_TYPE_RGB_ALPHA: - { - if (row_info->bit_depth == 8) - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_to_1 != NULL && gamma_from_1 != NULL && - gamma_table != NULL) - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 4, dp += 3) - { - png_byte a = *(sp + 3); - - if (a == 0xff) - { - *dp = gamma_table[*sp]; - *(dp + 1) = gamma_table[*(sp + 1)]; - *(dp + 2) = gamma_table[*(sp + 2)]; - } - else if (a == 0) - { - /* background is already in screen gamma */ - *dp = (png_byte)background->red; - *(dp + 1) = (png_byte)background->green; - *(dp + 2) = (png_byte)background->blue; - } - else - { - png_byte v, w; - - v = gamma_to_1[*sp]; - png_composite(w, v, a, background_1->red); - *dp = gamma_from_1[w]; - v = gamma_to_1[*(sp + 1)]; - png_composite(w, v, a, background_1->green); - *(dp + 1) = gamma_from_1[w]; - v = gamma_to_1[*(sp + 2)]; - png_composite(w, v, a, background_1->blue); - *(dp + 2) = gamma_from_1[w]; - } - } - } - else -#endif - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 4, dp += 3) - { - png_byte a = *(sp + 3); - - if (a == 0xff) - { - *dp = *sp; - *(dp + 1) = *(sp + 1); - *(dp + 2) = *(sp + 2); - } - else if (a == 0) - { - *dp = (png_byte)background->red; - *(dp + 1) = (png_byte)background->green; - *(dp + 2) = (png_byte)background->blue; - } - else - { - png_composite(*dp, *sp, a, background->red); - png_composite(*(dp + 1), *(sp + 1), a, - background->green); - png_composite(*(dp + 2), *(sp + 2), a, - background->blue); - } - } - } - } - else /* if (row_info->bit_depth == 16) */ - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_16 != NULL && gamma_16_from_1 != NULL && - gamma_16_to_1 != NULL) - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 8, dp += 6) - { - png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6)) - << 8) + (png_uint_16)(*(sp + 7))); - if (a == (png_uint_16)0xffff) - { - png_uint_16 v; - - v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; - *dp = (png_byte)((v >> 8) & 0xff); - *(dp + 1) = (png_byte)(v & 0xff); - v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)]; - *(dp + 2) = (png_byte)((v >> 8) & 0xff); - *(dp + 3) = (png_byte)(v & 0xff); - v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)]; - *(dp + 4) = (png_byte)((v >> 8) & 0xff); - *(dp + 5) = (png_byte)(v & 0xff); - } - else if (a == 0) - { - /* background is already in screen gamma */ - *dp = (png_byte)((background->red >> 8) & 0xff); - *(dp + 1) = (png_byte)(background->red & 0xff); - *(dp + 2) = (png_byte)((background->green >> 8) & 0xff); - *(dp + 3) = (png_byte)(background->green & 0xff); - *(dp + 4) = (png_byte)((background->blue >> 8) & 0xff); - *(dp + 5) = (png_byte)(background->blue & 0xff); - } - else - { - png_uint_16 v, w, x; - - v = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp]; - png_composite_16(w, v, a, background_1->red); - x = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> 8]; - *dp = (png_byte)((x >> 8) & 0xff); - *(dp + 1) = (png_byte)(x & 0xff); - v = gamma_16_to_1[*(sp + 3) >> gamma_shift][*(sp + 2)]; - png_composite_16(w, v, a, background_1->green); - x = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> 8]; - *(dp + 2) = (png_byte)((x >> 8) & 0xff); - *(dp + 3) = (png_byte)(x & 0xff); - v = gamma_16_to_1[*(sp + 5) >> gamma_shift][*(sp + 4)]; - png_composite_16(w, v, a, background_1->blue); - x = gamma_16_from_1[(w & 0xff) >> gamma_shift][w >> 8]; - *(dp + 4) = (png_byte)((x >> 8) & 0xff); - *(dp + 5) = (png_byte)(x & 0xff); - } - } - } - else -#endif - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 8, dp += 6) - { - png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6)) - << 8) + (png_uint_16)(*(sp + 7))); - if (a == (png_uint_16)0xffff) - { - png_memcpy(dp, sp, 6); - } - else if (a == 0) - { - *dp = (png_byte)((background->red >> 8) & 0xff); - *(dp + 1) = (png_byte)(background->red & 0xff); - *(dp + 2) = (png_byte)((background->green >> 8) & 0xff); - *(dp + 3) = (png_byte)(background->green & 0xff); - *(dp + 4) = (png_byte)((background->blue >> 8) & 0xff); - *(dp + 5) = (png_byte)(background->blue & 0xff); - } - else - { - png_uint_16 v; - - png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8) - + *(sp + 3)); - png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8) - + *(sp + 5)); - - png_composite_16(v, r, a, background->red); - *dp = (png_byte)((v >> 8) & 0xff); - *(dp + 1) = (png_byte)(v & 0xff); - png_composite_16(v, g, a, background->green); - *(dp + 2) = (png_byte)((v >> 8) & 0xff); - *(dp + 3) = (png_byte)(v & 0xff); - png_composite_16(v, b, a, background->blue); - *(dp + 4) = (png_byte)((v >> 8) & 0xff); - *(dp + 5) = (png_byte)(v & 0xff); - } - } - } - } - break; - } - } - - if (row_info->color_type & PNG_COLOR_MASK_ALPHA) - { - row_info->color_type &= ~PNG_COLOR_MASK_ALPHA; - row_info->channels--; - row_info->pixel_depth = (png_byte)(row_info->channels * - row_info->bit_depth); - row_info->rowbytes = ((row_width * - row_info->pixel_depth + 7) >> 3); - } - } -} -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) -/* Gamma correct the image, avoiding the alpha channel. Make sure - * you do this after you deal with the transparency issue on grayscale - * or RGB images. If your bit depth is 8, use gamma_table, if it - * is 16, use gamma_16_table and gamma_shift. Build these with - * build_gamma_table(). - */ -void /* PRIVATE */ -png_do_gamma(png_row_infop row_info, png_bytep row, - png_bytep gamma_table, png_uint_16pp gamma_16_table, - int gamma_shift) -{ - png_bytep sp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - png_debug(1, "in png_do_gamma\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - ((row_info->bit_depth <= 8 && gamma_table != NULL) || - (row_info->bit_depth == 16 && gamma_16_table != NULL))) - { - switch (row_info->color_type) - { - case PNG_COLOR_TYPE_RGB: - { - if (row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++) - { - *sp = gamma_table[*sp]; - sp++; - *sp = gamma_table[*sp]; - sp++; - *sp = gamma_table[*sp]; - sp++; - } - } - else /* if (row_info->bit_depth == 16) */ - { - sp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 v; - - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - } - } - break; - } - case PNG_COLOR_TYPE_RGB_ALPHA: - { - if (row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++) - { - *sp = gamma_table[*sp]; - sp++; - *sp = gamma_table[*sp]; - sp++; - *sp = gamma_table[*sp]; - sp++; - sp++; - } - } - else /* if (row_info->bit_depth == 16) */ - { - sp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 4; - } - } - break; - } - case PNG_COLOR_TYPE_GRAY_ALPHA: - { - if (row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++) - { - *sp = gamma_table[*sp]; - sp += 2; - } - } - else /* if (row_info->bit_depth == 16) */ - { - sp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 4; - } - } - break; - } - case PNG_COLOR_TYPE_GRAY: - { - if (row_info->bit_depth == 2) - { - sp = row; - for (i = 0; i < row_width; i += 4) - { - int a = *sp & 0xc0; - int b = *sp & 0x30; - int c = *sp & 0x0c; - int d = *sp & 0x03; - - *sp = (png_byte)( - ((((int)gamma_table[a|(a>>2)|(a>>4)|(a>>6)]) ) & 0xc0)| - ((((int)gamma_table[(b<<2)|b|(b>>2)|(b>>4)])>>2) & 0x30)| - ((((int)gamma_table[(c<<4)|(c<<2)|c|(c>>2)])>>4) & 0x0c)| - ((((int)gamma_table[(d<<6)|(d<<4)|(d<<2)|d])>>6) )); - sp++; - } - } - if (row_info->bit_depth == 4) - { - sp = row; - for (i = 0; i < row_width; i += 2) - { - int msb = *sp & 0xf0; - int lsb = *sp & 0x0f; - - *sp = (png_byte)((((int)gamma_table[msb | (msb >> 4)]) & 0xf0) - | (((int)gamma_table[(lsb << 4) | lsb]) >> 4)); - sp++; - } - } - else if (row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++) - { - *sp = gamma_table[*sp]; - sp++; - } - } - else if (row_info->bit_depth == 16) - { - sp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - } - } - break; - } - } - } -} -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) -/* Expands a palette row to an RGB or RGBA row depending - * upon whether you supply trans and num_trans. - */ -void /* PRIVATE */ -png_do_expand_palette(png_row_infop row_info, png_bytep row, - png_colorp palette, png_bytep trans, int num_trans) -{ - int shift, value; - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - png_debug(1, "in png_do_expand_palette\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - row_info->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (row_info->bit_depth < 8) - { - switch (row_info->bit_depth) - { - case 1: - { - sp = row + (png_size_t)((row_width - 1) >> 3); - dp = row + (png_size_t)row_width - 1; - shift = 7 - (int)((row_width + 7) & 0x07); - for (i = 0; i < row_width; i++) - { - if ((*sp >> shift) & 0x01) - *dp = 1; - else - *dp = 0; - if (shift == 7) - { - shift = 0; - sp--; - } - else - shift++; - - dp--; - } - break; - } - case 2: - { - sp = row + (png_size_t)((row_width - 1) >> 2); - dp = row + (png_size_t)row_width - 1; - shift = (int)((3 - ((row_width + 3) & 0x03)) << 1); - for (i = 0; i < row_width; i++) - { - value = (*sp >> shift) & 0x03; - *dp = (png_byte)value; - if (shift == 6) - { - shift = 0; - sp--; - } - else - shift += 2; - - dp--; - } - break; - } - case 4: - { - sp = row + (png_size_t)((row_width - 1) >> 1); - dp = row + (png_size_t)row_width - 1; - shift = (int)((row_width & 0x01) << 2); - for (i = 0; i < row_width; i++) - { - value = (*sp >> shift) & 0x0f; - *dp = (png_byte)value; - if (shift == 4) - { - shift = 0; - sp--; - } - else - shift += 4; - - dp--; - } - break; - } - } - row_info->bit_depth = 8; - row_info->pixel_depth = 8; - row_info->rowbytes = row_width; - } - switch (row_info->bit_depth) - { - case 8: - { - if (trans != NULL) - { - sp = row + (png_size_t)row_width - 1; - dp = row + (png_size_t)(row_width << 2) - 1; - - for (i = 0; i < row_width; i++) - { - if ((int)(*sp) >= num_trans) - *dp-- = 0xff; - else - *dp-- = trans[*sp]; - *dp-- = palette[*sp].blue; - *dp-- = palette[*sp].green; - *dp-- = palette[*sp].red; - sp--; - } - row_info->bit_depth = 8; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - row_info->color_type = 6; - row_info->channels = 4; - } - else - { - sp = row + (png_size_t)row_width - 1; - dp = row + (png_size_t)(row_width * 3) - 1; - - for (i = 0; i < row_width; i++) - { - *dp-- = palette[*sp].blue; - *dp-- = palette[*sp].green; - *dp-- = palette[*sp].red; - sp--; - } - row_info->bit_depth = 8; - row_info->pixel_depth = 24; - row_info->rowbytes = row_width * 3; - row_info->color_type = 2; - row_info->channels = 3; - } - break; - } - } - } -} - -/* If the bit depth < 8, it is expanded to 8. Also, if the - * transparency value is supplied, an alpha channel is built. - */ -void /* PRIVATE */ -png_do_expand(png_row_infop row_info, png_bytep row, - png_color_16p trans_value) -{ - int shift, value; - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - png_debug(1, "in png_do_expand\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - if (row_info->color_type == PNG_COLOR_TYPE_GRAY) - { - png_uint_16 gray = (png_uint_16)(trans_value ? trans_value->gray : 0); - - if (row_info->bit_depth < 8) - { - switch (row_info->bit_depth) - { - case 1: - { - gray = (png_uint_16)(gray*0xff); - sp = row + (png_size_t)((row_width - 1) >> 3); - dp = row + (png_size_t)row_width - 1; - shift = 7 - (int)((row_width + 7) & 0x07); - for (i = 0; i < row_width; i++) - { - if ((*sp >> shift) & 0x01) - *dp = 0xff; - else - *dp = 0; - if (shift == 7) - { - shift = 0; - sp--; - } - else - shift++; - - dp--; - } - break; - } - case 2: - { - gray = (png_uint_16)(gray*0x55); - sp = row + (png_size_t)((row_width - 1) >> 2); - dp = row + (png_size_t)row_width - 1; - shift = (int)((3 - ((row_width + 3) & 0x03)) << 1); - for (i = 0; i < row_width; i++) - { - value = (*sp >> shift) & 0x03; - *dp = (png_byte)(value | (value << 2) | (value << 4) | - (value << 6)); - if (shift == 6) - { - shift = 0; - sp--; - } - else - shift += 2; - - dp--; - } - break; - } - case 4: - { - gray = (png_uint_16)(gray*0x11); - sp = row + (png_size_t)((row_width - 1) >> 1); - dp = row + (png_size_t)row_width - 1; - shift = (int)((1 - ((row_width + 1) & 0x01)) << 2); - for (i = 0; i < row_width; i++) - { - value = (*sp >> shift) & 0x0f; - *dp = (png_byte)(value | (value << 4)); - if (shift == 4) - { - shift = 0; - sp--; - } - else - shift = 4; - - dp--; - } - break; - } - } - row_info->bit_depth = 8; - row_info->pixel_depth = 8; - row_info->rowbytes = row_width; - } - - if (trans_value != NULL) - { - if (row_info->bit_depth == 8) - { - sp = row + (png_size_t)row_width - 1; - dp = row + (png_size_t)(row_width << 1) - 1; - for (i = 0; i < row_width; i++) - { - if (*sp == gray) - *dp-- = 0; - else - *dp-- = 0xff; - *dp-- = *sp--; - } - } - else if (row_info->bit_depth == 16) - { - sp = row + row_info->rowbytes - 1; - dp = row + (row_info->rowbytes << 1) - 1; - for (i = 0; i < row_width; i++) - { - if (((png_uint_16)*(sp) | - ((png_uint_16)*(sp - 1) << 8)) == gray) - { - *dp-- = 0; - *dp-- = 0; - } - else - { - *dp-- = 0xff; - *dp-- = 0xff; - } - *dp-- = *sp--; - *dp-- = *sp--; - } - } - row_info->color_type = PNG_COLOR_TYPE_GRAY_ALPHA; - row_info->channels = 2; - row_info->pixel_depth = (png_byte)(row_info->bit_depth << 1); - row_info->rowbytes = - ((row_width * row_info->pixel_depth) >> 3); - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_RGB && trans_value) - { - if (row_info->bit_depth == 8) - { - sp = row + (png_size_t)row_info->rowbytes - 1; - dp = row + (png_size_t)(row_width << 2) - 1; - for (i = 0; i < row_width; i++) - { - if (*(sp - 2) == trans_value->red && - *(sp - 1) == trans_value->green && - *(sp - 0) == trans_value->blue) - *dp-- = 0; - else - *dp-- = 0xff; - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - } - } - else if (row_info->bit_depth == 16) - { - sp = row + row_info->rowbytes - 1; - dp = row + (png_size_t)(row_width << 3) - 1; - for (i = 0; i < row_width; i++) - { - if ((((png_uint_16)*(sp - 4) | - ((png_uint_16)*(sp - 5) << 8)) == trans_value->red) && - (((png_uint_16)*(sp - 2) | - ((png_uint_16)*(sp - 3) << 8)) == trans_value->green) && - (((png_uint_16)*(sp - 0) | - ((png_uint_16)*(sp - 1) << 8)) == trans_value->blue)) - { - *dp-- = 0; - *dp-- = 0; - } - else - { - *dp-- = 0xff; - *dp-- = 0xff; - } - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - } - } - row_info->color_type = PNG_COLOR_TYPE_RGB_ALPHA; - row_info->channels = 4; - row_info->pixel_depth = (png_byte)(row_info->bit_depth << 2); - row_info->rowbytes = - ((row_width * row_info->pixel_depth) >> 3); - } - } -} -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) -void /* PRIVATE */ -png_do_dither(png_row_infop row_info, png_bytep row, - png_bytep palette_lookup, png_bytep dither_lookup) -{ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - png_debug(1, "in png_do_dither\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB && - palette_lookup && row_info->bit_depth == 8) - { - int r, g, b, p; - sp = row; - dp = row; - for (i = 0; i < row_width; i++) - { - r = *sp++; - g = *sp++; - b = *sp++; - - /* this looks real messy, but the compiler will reduce - it down to a reasonable formula. For example, with - 5 bits per color, we get: - p = (((r >> 3) & 0x1f) << 10) | - (((g >> 3) & 0x1f) << 5) | - ((b >> 3) & 0x1f); - */ - p = (((r >> (8 - PNG_DITHER_RED_BITS)) & - ((1 << PNG_DITHER_RED_BITS) - 1)) << - (PNG_DITHER_GREEN_BITS + PNG_DITHER_BLUE_BITS)) | - (((g >> (8 - PNG_DITHER_GREEN_BITS)) & - ((1 << PNG_DITHER_GREEN_BITS) - 1)) << - (PNG_DITHER_BLUE_BITS)) | - ((b >> (8 - PNG_DITHER_BLUE_BITS)) & - ((1 << PNG_DITHER_BLUE_BITS) - 1)); - - *dp++ = palette_lookup[p]; - } - row_info->color_type = PNG_COLOR_TYPE_PALETTE; - row_info->channels = 1; - row_info->pixel_depth = row_info->bit_depth; - row_info->rowbytes = - ((row_width * row_info->pixel_depth + 7) >> 3); - } - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA && - palette_lookup != NULL && row_info->bit_depth == 8) - { - int r, g, b, p; - sp = row; - dp = row; - for (i = 0; i < row_width; i++) - { - r = *sp++; - g = *sp++; - b = *sp++; - sp++; - - p = (((r >> (8 - PNG_DITHER_RED_BITS)) & - ((1 << PNG_DITHER_RED_BITS) - 1)) << - (PNG_DITHER_GREEN_BITS + PNG_DITHER_BLUE_BITS)) | - (((g >> (8 - PNG_DITHER_GREEN_BITS)) & - ((1 << PNG_DITHER_GREEN_BITS) - 1)) << - (PNG_DITHER_BLUE_BITS)) | - ((b >> (8 - PNG_DITHER_BLUE_BITS)) & - ((1 << PNG_DITHER_BLUE_BITS) - 1)); - - *dp++ = palette_lookup[p]; - } - row_info->color_type = PNG_COLOR_TYPE_PALETTE; - row_info->channels = 1; - row_info->pixel_depth = row_info->bit_depth; - row_info->rowbytes = - ((row_width * row_info->pixel_depth + 7) >> 3); - } - else if (row_info->color_type == PNG_COLOR_TYPE_PALETTE && - dither_lookup && row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++, sp++) - { - *sp = dither_lookup[*sp]; - } - } - } -} -#endif - -#ifdef PNG_FLOATING_POINT_SUPPORTED -#if defined(PNG_READ_GAMMA_SUPPORTED) -static int png_gamma_shift[] = - {0x10, 0x21, 0x42, 0x84, 0x110, 0x248, 0x550, 0xff0}; - -/* We build the 8- or 16-bit gamma tables here. Note that for 16-bit - * tables, we don't make a full table if we are reducing to 8-bit in - * the future. Note also how the gamma_16 tables are segmented so that - * we don't need to allocate > 64K chunks for a full 16-bit table. - */ -void /* PRIVATE */ -png_build_gamma_table(png_structp png_ptr) -{ - png_debug(1, "in png_build_gamma_table\n"); - if(png_ptr->gamma != 0.0) - { - if (png_ptr->bit_depth <= 8) - { - int i; - double g; - - if (png_ptr->screen_gamma > .000001) - g = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma); - else - g = 1.0; - - png_ptr->gamma_table = (png_bytep)png_malloc(png_ptr, - (png_uint_32)256); - - for (i = 0; i < 256; i++) - { - png_ptr->gamma_table[i] = (png_byte)(pow((double)i / 255.0, - g) * 255.0 + .5); - } - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \ - defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - if (png_ptr->transformations & ((PNG_BACKGROUND) | PNG_RGB_TO_GRAY)) - { - - g = 1.0 / (png_ptr->gamma); - - png_ptr->gamma_to_1 = (png_bytep)png_malloc(png_ptr, - (png_uint_32)256); - - for (i = 0; i < 256; i++) - { - png_ptr->gamma_to_1[i] = (png_byte)(pow((double)i / 255.0, - g) * 255.0 + .5); - } - - - png_ptr->gamma_from_1 = (png_bytep)png_malloc(png_ptr, - (png_uint_32)256); - - if(png_ptr->screen_gamma > 0.000001) - g = 1.0 / png_ptr->screen_gamma; - else - g = png_ptr->gamma; /* probably doing rgb_to_gray */ - - for (i = 0; i < 256; i++) - { - png_ptr->gamma_from_1[i] = (png_byte)(pow((double)i / 255.0, - g) * 255.0 + .5); - - } - } -#endif /* PNG_READ_BACKGROUND_SUPPORTED || PNG_RGB_TO_GRAY_SUPPORTED */ - } - else - { - double g; - int i, j, shift, num; - int sig_bit; - png_uint_32 ig; - - if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) - { - sig_bit = (int)png_ptr->sig_bit.red; - if ((int)png_ptr->sig_bit.green > sig_bit) - sig_bit = png_ptr->sig_bit.green; - if ((int)png_ptr->sig_bit.blue > sig_bit) - sig_bit = png_ptr->sig_bit.blue; - } - else - { - sig_bit = (int)png_ptr->sig_bit.gray; - } - - if (sig_bit > 0) - shift = 16 - sig_bit; - else - shift = 0; - - if (png_ptr->transformations & PNG_16_TO_8) - { - if (shift < (16 - PNG_MAX_GAMMA_8)) - shift = (16 - PNG_MAX_GAMMA_8); - } - - if (shift > 8) - shift = 8; - if (shift < 0) - shift = 0; - - png_ptr->gamma_shift = (png_byte)shift; - - num = (1 << (8 - shift)); - - if (png_ptr->screen_gamma > .000001) - g = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma); - else - g = 1.0; - - png_ptr->gamma_16_table = (png_uint_16pp)png_malloc(png_ptr, - (png_uint_32)(num * sizeof (png_uint_16p))); - - if (png_ptr->transformations & (PNG_16_TO_8 | PNG_BACKGROUND)) - { - double fin, fout; - png_uint_32 last, max; - - for (i = 0; i < num; i++) - { - png_ptr->gamma_16_table[i] = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(256 * sizeof (png_uint_16))); - } - - g = 1.0 / g; - last = 0; - for (i = 0; i < 256; i++) - { - fout = ((double)i + 0.5) / 256.0; - fin = pow(fout, g); - max = (png_uint_32)(fin * (double)((png_uint_32)num << 8)); - while (last <= max) - { - png_ptr->gamma_16_table[(int)(last & (0xff >> shift))] - [(int)(last >> (8 - shift))] = (png_uint_16)( - (png_uint_16)i | ((png_uint_16)i << 8)); - last++; - } - } - while (last < ((png_uint_32)num << 8)) - { - png_ptr->gamma_16_table[(int)(last & (0xff >> shift))] - [(int)(last >> (8 - shift))] = (png_uint_16)65535L; - last++; - } - } - else - { - for (i = 0; i < num; i++) - { - png_ptr->gamma_16_table[i] = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(256 * sizeof (png_uint_16))); - - ig = (((png_uint_32)i * (png_uint_32)png_gamma_shift[shift]) >> 4); - for (j = 0; j < 256; j++) - { - png_ptr->gamma_16_table[i][j] = - (png_uint_16)(pow((double)(ig + ((png_uint_32)j << 8)) / - 65535.0, g) * 65535.0 + .5); - } - } - } - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \ - defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - if (png_ptr->transformations & (PNG_BACKGROUND | PNG_RGB_TO_GRAY)) - { - - g = 1.0 / (png_ptr->gamma); - - png_ptr->gamma_16_to_1 = (png_uint_16pp)png_malloc(png_ptr, - (png_uint_32)(num * sizeof (png_uint_16p ))); - - for (i = 0; i < num; i++) - { - png_ptr->gamma_16_to_1[i] = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(256 * sizeof (png_uint_16))); - - ig = (((png_uint_32)i * - (png_uint_32)png_gamma_shift[shift]) >> 4); - for (j = 0; j < 256; j++) - { - png_ptr->gamma_16_to_1[i][j] = - (png_uint_16)(pow((double)(ig + ((png_uint_32)j << 8)) / - 65535.0, g) * 65535.0 + .5); - } - } - - if(png_ptr->screen_gamma > 0.000001) - g = 1.0 / png_ptr->screen_gamma; - else - g = png_ptr->gamma; /* probably doing rgb_to_gray */ - - png_ptr->gamma_16_from_1 = (png_uint_16pp)png_malloc(png_ptr, - (png_uint_32)(num * sizeof (png_uint_16p))); - - for (i = 0; i < num; i++) - { - png_ptr->gamma_16_from_1[i] = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(256 * sizeof (png_uint_16))); - - ig = (((png_uint_32)i * - (png_uint_32)png_gamma_shift[shift]) >> 4); - for (j = 0; j < 256; j++) - { - png_ptr->gamma_16_from_1[i][j] = - (png_uint_16)(pow((double)(ig + ((png_uint_32)j << 8)) / - 65535.0, g) * 65535.0 + .5); - } - } - } -#endif /* PNG_READ_BACKGROUND_SUPPORTED || PNG_RGB_TO_GRAY_SUPPORTED */ - } - } -} -#endif -/* To do: install integer version of png_build_gamma_table here */ -#endif - -#if defined(PNG_MNG_FEATURES_SUPPORTED) -/* undoes intrapixel differencing */ -void /* PRIVATE */ -png_do_read_intrapixel(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_read_intrapixel\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - (row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - int bytes_per_pixel; - png_uint_32 row_width = row_info->width; - if (row_info->bit_depth == 8) - { - png_bytep rp; - png_uint_32 i; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - bytes_per_pixel = 3; - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - bytes_per_pixel = 4; - else - return; - - for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) - { - *(rp) = (png_byte)((256 + *rp + *(rp+1))&0xff); - *(rp+2) = (png_byte)((256 + *(rp+2) + *(rp+1))&0xff); - } - } - else if (row_info->bit_depth == 16) - { - png_bytep rp; - png_uint_32 i; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - bytes_per_pixel = 6; - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - bytes_per_pixel = 8; - else - return; - - for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) - { - png_uint_32 s0=*(rp )<<8 | *(rp+1); - png_uint_32 s1=*(rp+2)<<8 | *(rp+3); - png_uint_32 s2=*(rp+4)<<8 | *(rp+5); - png_uint_32 red=(65536+s0+s1)&0xffff; - png_uint_32 blue=(65536+s2+s1)&0xffff; - *(rp ) = (png_byte)((red>>8)&0xff); - *(rp+1) = (png_byte)(red&0xff); - *(rp+4) = (png_byte)((blue>>8)&0xff); - *(rp+5) = (png_byte)(blue&0xff); - } - } - } -} -#endif /* PNG_MNG_FEATURES_SUPPORTED */ diff --git a/collects/plot/src/all/pngrutil.c b/collects/plot/src/all/pngrutil.c deleted file mode 100644 index 9cbfed65f0..0000000000 --- a/collects/plot/src/all/pngrutil.c +++ /dev/null @@ -1,3101 +0,0 @@ - -/* pngrutil.c - utilities to read a PNG file - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file contains routines that are only called from within - * libpng itself during the course of reading an image. - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(_WIN32_WCE) -/* strtod() function is not supported on WindowsCE */ -# ifdef PNG_FLOATING_POINT_SUPPORTED -__inline double strtod(const char *nptr, char **endptr) -{ - double result = 0; - int len; - wchar_t *str, *end; - - len = MultiByteToWideChar(CP_ACP, 0, nptr, -1, NULL, 0); - str = (wchar_t *)malloc(len * sizeof(wchar_t)); - if ( NULL != str ) - { - MultiByteToWideChar(CP_ACP, 0, nptr, -1, str, len); - result = wcstod(str, &end); - len = WideCharToMultiByte(CP_ACP, 0, end, -1, NULL, 0, NULL, NULL); - *endptr = (char *)nptr + (png_strlen(nptr) - len + 1); - free(str); - } - return result; -} -# endif -#endif - -#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED -/* Grab an unsigned 32-bit integer from a buffer in big-endian format. */ -png_uint_32 /* PRIVATE */ -png_get_uint_32(png_bytep buf) -{ - png_uint_32 i = ((png_uint_32)(*buf) << 24) + - ((png_uint_32)(*(buf + 1)) << 16) + - ((png_uint_32)(*(buf + 2)) << 8) + - (png_uint_32)(*(buf + 3)); - - return (i); -} - -#if defined(PNG_READ_pCAL_SUPPORTED) || defined(PNG_READ_oFFs_SUPPORTED) -/* Grab a signed 32-bit integer from a buffer in big-endian format. The - * data is stored in the PNG file in two's complement format, and it is - * assumed that the machine format for signed integers is the same. */ -png_int_32 /* PRIVATE */ -png_get_int_32(png_bytep buf) -{ - png_int_32 i = ((png_int_32)(*buf) << 24) + - ((png_int_32)(*(buf + 1)) << 16) + - ((png_int_32)(*(buf + 2)) << 8) + - (png_int_32)(*(buf + 3)); - - return (i); -} -#endif /* PNG_READ_pCAL_SUPPORTED */ - -/* Grab an unsigned 16-bit integer from a buffer in big-endian format. */ -png_uint_16 /* PRIVATE */ -png_get_uint_16(png_bytep buf) -{ - png_uint_16 i = (png_uint_16)(((png_uint_16)(*buf) << 8) + - (png_uint_16)(*(buf + 1))); - - return (i); -} -#endif /* PNG_READ_BIG_ENDIAN_SUPPORTED */ - -/* Read data, and (optionally) run it through the CRC. */ -void /* PRIVATE */ -png_crc_read(png_structp png_ptr, png_bytep buf, png_size_t length) -{ - png_read_data(png_ptr, buf, length); - png_calculate_crc(png_ptr, buf, length); -} - -/* Optionally skip data and then check the CRC. Depending on whether we - are reading a ancillary or critical chunk, and how the program has set - things up, we may calculate the CRC on the data and print a message. - Returns '1' if there was a CRC error, '0' otherwise. */ -int /* PRIVATE */ -png_crc_finish(png_structp png_ptr, png_uint_32 skip) -{ - png_size_t i; - png_size_t istop = png_ptr->zbuf_size; - - for (i = (png_size_t)skip; i > istop; i -= istop) - { - png_crc_read(png_ptr, png_ptr->zbuf, png_ptr->zbuf_size); - } - if (i) - { - png_crc_read(png_ptr, png_ptr->zbuf, i); - } - - if (png_crc_error(png_ptr)) - { - if (((png_ptr->chunk_name[0] & 0x20) && /* Ancillary */ - !(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN)) || - (!(png_ptr->chunk_name[0] & 0x20) && /* Critical */ - (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_USE))) - { - png_chunk_warning(png_ptr, "CRC error"); - } - else - { - png_chunk_error(png_ptr, "CRC error"); - } - return (1); - } - - return (0); -} - -/* Compare the CRC stored in the PNG file with that calculated by libpng from - the data it has read thus far. */ -int /* PRIVATE */ -png_crc_error(png_structp png_ptr) -{ - png_byte crc_bytes[4]; - png_uint_32 crc; - int need_crc = 1; - - if (png_ptr->chunk_name[0] & 0x20) /* ancillary */ - { - if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) == - (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN)) - need_crc = 0; - } - else /* critical */ - { - if (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE) - need_crc = 0; - } - - png_read_data(png_ptr, crc_bytes, 4); - - if (need_crc) - { - crc = png_get_uint_32(crc_bytes); - return ((int)(crc != png_ptr->crc)); - } - else - return (0); -} - -#if defined(PNG_READ_zTXt_SUPPORTED) || defined(PNG_READ_iTXt_SUPPORTED) || \ - defined(PNG_READ_iCCP_SUPPORTED) -/* - * Decompress trailing data in a chunk. The assumption is that chunkdata - * points at an allocated area holding the contents of a chunk with a - * trailing compressed part. What we get back is an allocated area - * holding the original prefix part and an uncompressed version of the - * trailing part (the malloc area passed in is freed). - */ -png_charp /* PRIVATE */ -png_decompress_chunk(png_structp png_ptr, int comp_type, - png_charp chunkdata, png_size_t chunklength, - png_size_t prefix_size, png_size_t *newlength) -{ - static char msg[] = "Error decoding compressed text"; - png_charp text = NULL; - png_size_t text_size; - - if (comp_type == PNG_COMPRESSION_TYPE_BASE) - { - int ret = Z_OK; - png_ptr->zstream.next_in = (png_bytep)(chunkdata + prefix_size); - png_ptr->zstream.avail_in = (uInt)(chunklength - prefix_size); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - - text_size = 0; - text = NULL; - - while (png_ptr->zstream.avail_in) - { - ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH); - if (ret != Z_OK && ret != Z_STREAM_END) - { - if (png_ptr->zstream.msg != NULL) - png_warning(png_ptr, png_ptr->zstream.msg); - else - png_warning(png_ptr, msg); - inflateReset(&png_ptr->zstream); - png_ptr->zstream.avail_in = 0; - - if (text == NULL) - { - text_size = prefix_size + sizeof(msg) + 1; - text = (png_charp)png_malloc_warn(png_ptr, text_size); - if (text == NULL) - { - png_free(png_ptr,chunkdata); - png_error(png_ptr,"Not enough memory to decompress chunk"); - } - png_memcpy(text, chunkdata, prefix_size); - } - - text[text_size - 1] = 0x00; - - /* Copy what we can of the error message into the text chunk */ - text_size = (png_size_t)(chunklength - (text - chunkdata) - 1); - text_size = sizeof(msg) > text_size ? text_size : sizeof(msg); - png_memcpy(text + prefix_size, msg, text_size + 1); - break; - } - if (!png_ptr->zstream.avail_out || ret == Z_STREAM_END) - { - if (text == NULL) - { - text_size = prefix_size + - png_ptr->zbuf_size - png_ptr->zstream.avail_out; - text = (png_charp)png_malloc_warn(png_ptr, text_size + 1); - if (text == NULL) - { - png_free(png_ptr,chunkdata); - png_error(png_ptr,"Not enough memory to decompress chunk."); - } - png_memcpy(text + prefix_size, png_ptr->zbuf, - text_size - prefix_size); - png_memcpy(text, chunkdata, prefix_size); - *(text + text_size) = 0x00; - } - else - { - png_charp tmp; - - tmp = text; - text = (png_charp)png_malloc_warn(png_ptr, - (png_uint_32)(text_size + - png_ptr->zbuf_size - png_ptr->zstream.avail_out + 1)); - if (text == NULL) - { - png_free(png_ptr, tmp); - png_free(png_ptr, chunkdata); - png_error(png_ptr,"Not enough memory to decompress chunk.."); - } - png_memcpy(text, tmp, text_size); - png_free(png_ptr, tmp); - png_memcpy(text + text_size, png_ptr->zbuf, - (png_ptr->zbuf_size - png_ptr->zstream.avail_out)); - text_size += png_ptr->zbuf_size - png_ptr->zstream.avail_out; - *(text + text_size) = 0x00; - } - if (ret == Z_STREAM_END) - break; - else - { - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - } - } - } - if (ret != Z_STREAM_END) - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char umsg[50]; - - if (ret == Z_BUF_ERROR) - sprintf(umsg,"Buffer error in compressed datastream in %s chunk", - png_ptr->chunk_name); - else if (ret == Z_DATA_ERROR) - sprintf(umsg,"Data error in compressed datastream in %s chunk", - png_ptr->chunk_name); - else - sprintf(umsg,"Incomplete compressed datastream in %s chunk", - png_ptr->chunk_name); - png_warning(png_ptr, umsg); -#else - png_warning(png_ptr, - "Incomplete compressed datastream in chunk other than IDAT"); -#endif - text_size=prefix_size; - if (text == NULL) - { - text = (png_charp)png_malloc_warn(png_ptr, text_size+1); - if (text == NULL) - { - png_free(png_ptr, chunkdata); - png_error(png_ptr,"Not enough memory for text."); - } - png_memcpy(text, chunkdata, prefix_size); - } - *(text + text_size) = 0x00; - } - - inflateReset(&png_ptr->zstream); - png_ptr->zstream.avail_in = 0; - - png_free(png_ptr, chunkdata); - chunkdata = text; - *newlength=text_size; - } - else /* if (comp_type != PNG_COMPRESSION_TYPE_BASE) */ - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char umsg[50]; - - sprintf(umsg, "Unknown zTXt compression type %d", comp_type); - png_warning(png_ptr, umsg); -#else - png_warning(png_ptr, "Unknown zTXt compression type"); -#endif - - *(chunkdata + prefix_size) = 0x00; - *newlength=prefix_size; - } - - return chunkdata; -} -#endif - -/* read and check the IDHR chunk */ -void /* PRIVATE */ -png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_byte buf[13]; - png_uint_32 width, height; - int bit_depth, color_type, compression_type, filter_type; - int interlace_type; - - png_debug(1, "in png_handle_IHDR\n"); - - if (png_ptr->mode & PNG_HAVE_IHDR) - png_error(png_ptr, "Out of place IHDR"); - - /* check the length */ - if (length != 13) - png_error(png_ptr, "Invalid IHDR chunk"); - - png_ptr->mode |= PNG_HAVE_IHDR; - - png_crc_read(png_ptr, buf, 13); - png_crc_finish(png_ptr, 0); - - width = png_get_uint_32(buf); - height = png_get_uint_32(buf + 4); - bit_depth = buf[8]; - color_type = buf[9]; - compression_type = buf[10]; - filter_type = buf[11]; - interlace_type = buf[12]; - - - /* set internal variables */ - png_ptr->width = width; - png_ptr->height = height; - png_ptr->bit_depth = (png_byte)bit_depth; - png_ptr->interlaced = (png_byte)interlace_type; - png_ptr->color_type = (png_byte)color_type; -#if defined(PNG_MNG_FEATURES_SUPPORTED) - png_ptr->filter_type = (png_byte)filter_type; -#endif - - /* find number of channels */ - switch (png_ptr->color_type) - { - case PNG_COLOR_TYPE_GRAY: - case PNG_COLOR_TYPE_PALETTE: - png_ptr->channels = 1; - break; - case PNG_COLOR_TYPE_RGB: - png_ptr->channels = 3; - break; - case PNG_COLOR_TYPE_GRAY_ALPHA: - png_ptr->channels = 2; - break; - case PNG_COLOR_TYPE_RGB_ALPHA: - png_ptr->channels = 4; - break; - } - - /* set up other useful info */ - png_ptr->pixel_depth = (png_byte)(png_ptr->bit_depth * - png_ptr->channels); - png_ptr->rowbytes = ((png_ptr->width * - (png_uint_32)png_ptr->pixel_depth + 7) >> 3); - png_debug1(3,"bit_depth = %d\n", png_ptr->bit_depth); - png_debug1(3,"channels = %d\n", png_ptr->channels); - png_debug1(3,"rowbytes = %lu\n", png_ptr->rowbytes); - png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth, - color_type, interlace_type, compression_type, filter_type); -} - -/* read and check the palette */ -void /* PRIVATE */ -png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_color palette[PNG_MAX_PALETTE_LENGTH]; - int num, i; -#ifndef PNG_NO_POINTER_INDEXING - png_colorp pal_ptr; -#endif - - png_debug(1, "in png_handle_PLTE\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before PLTE"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid PLTE after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->mode & PNG_HAVE_PLTE) - png_error(png_ptr, "Duplicate PLTE chunk"); - - png_ptr->mode |= PNG_HAVE_PLTE; - - if (!(png_ptr->color_type&PNG_COLOR_MASK_COLOR)) - { - png_warning(png_ptr, - "Ignoring PLTE chunk in grayscale PNG"); - png_crc_finish(png_ptr, length); - return; - } -#if !defined(PNG_READ_OPT_PLTE_SUPPORTED) - if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE) - { - png_crc_finish(png_ptr, length); - return; - } -#endif - - if (length > 3*PNG_MAX_PALETTE_LENGTH || length % 3) - { - if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE) - { - png_warning(png_ptr, "Invalid palette chunk"); - png_crc_finish(png_ptr, length); - return; - } - else - { - png_error(png_ptr, "Invalid palette chunk"); - } - } - - num = (int)length / 3; - -#ifndef PNG_NO_POINTER_INDEXING - for (i = 0, pal_ptr = palette; i < num; i++, pal_ptr++) - { - png_byte buf[3]; - - png_crc_read(png_ptr, buf, 3); - pal_ptr->red = buf[0]; - pal_ptr->green = buf[1]; - pal_ptr->blue = buf[2]; - } -#else - for (i = 0; i < num; i++) - { - png_byte buf[3]; - - png_crc_read(png_ptr, buf, 3); - /* don't depend upon png_color being any order */ - palette[i].red = buf[0]; - palette[i].green = buf[1]; - palette[i].blue = buf[2]; - } -#endif - - /* If we actually NEED the PLTE chunk (ie for a paletted image), we do - whatever the normal CRC configuration tells us. However, if we - have an RGB image, the PLTE can be considered ancillary, so - we will act as though it is. */ -#if !defined(PNG_READ_OPT_PLTE_SUPPORTED) - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) -#endif - { - png_crc_finish(png_ptr, 0); - } -#if !defined(PNG_READ_OPT_PLTE_SUPPORTED) - else if (png_crc_error(png_ptr)) /* Only if we have a CRC error */ - { - /* If we don't want to use the data from an ancillary chunk, - we have two options: an error abort, or a warning and we - ignore the data in this chunk (which should be OK, since - it's considered ancillary for a RGB or RGBA image). */ - if (!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_USE)) - { - if (png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) - { - png_chunk_error(png_ptr, "CRC error"); - } - else - { - png_chunk_warning(png_ptr, "CRC error"); - return; - } - } - /* Otherwise, we (optionally) emit a warning and use the chunk. */ - else if (!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN)) - { - png_chunk_warning(png_ptr, "CRC error"); - } - } -#endif - - png_set_PLTE(png_ptr, info_ptr, palette, num); - -#if defined(PNG_READ_tRNS_SUPPORTED) - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS)) - { - if (png_ptr->num_trans > (png_uint_16)num) - { - png_warning(png_ptr, "Truncating incorrect tRNS chunk length"); - png_ptr->num_trans = (png_uint_16)num; - } - if (info_ptr->num_trans > (png_uint_16)num) - { - png_warning(png_ptr, "Truncating incorrect info tRNS chunk length"); - info_ptr->num_trans = (png_uint_16)num; - } - } - } -#endif - -} - -void /* PRIVATE */ -png_handle_IEND(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_debug(1, "in png_handle_IEND\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR) || !(png_ptr->mode & PNG_HAVE_IDAT)) - { - png_error(png_ptr, "No image in file"); - - info_ptr = info_ptr; /* quiet compiler warnings about unused info_ptr */ - } - - png_ptr->mode |= (PNG_AFTER_IDAT | PNG_HAVE_IEND); - - if (length != 0) - { - png_warning(png_ptr, "Incorrect IEND chunk length"); - } - png_crc_finish(png_ptr, length); -} - -#if defined(PNG_READ_gAMA_SUPPORTED) -void /* PRIVATE */ -png_handle_gAMA(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_fixed_point igamma; -#ifdef PNG_FLOATING_POINT_SUPPORTED - float file_gamma; -#endif - png_byte buf[4]; - - png_debug(1, "in png_handle_gAMA\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before gAMA"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid gAMA after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->mode & PNG_HAVE_PLTE) - /* Should be an error, but we can cope with it */ - png_warning(png_ptr, "Out of place gAMA chunk"); - - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA) -#if defined(PNG_READ_sRGB_SUPPORTED) - && !(info_ptr->valid & PNG_INFO_sRGB) -#endif - ) - { - png_warning(png_ptr, "Duplicate gAMA chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (length != 4) - { - png_warning(png_ptr, "Incorrect gAMA chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 4); - if (png_crc_finish(png_ptr, 0)) - return; - - igamma = (png_fixed_point)png_get_uint_32(buf); - /* check for zero gamma */ - if (igamma == 0) - { - png_warning(png_ptr, - "Ignoring gAMA chunk with gamma=0"); - return; - } - -#if defined(PNG_READ_sRGB_SUPPORTED) - if (info_ptr->valid & PNG_INFO_sRGB) - if(igamma < 45000L || igamma > 46000L) - { - png_warning(png_ptr, - "Ignoring incorrect gAMA value when sRGB is also present"); -#ifndef PNG_NO_CONSOLE_IO - fprintf(stderr, "gamma = (%d/100000)\n", (int)igamma); -#endif - return; - } -#endif /* PNG_READ_sRGB_SUPPORTED */ - -#ifdef PNG_FLOATING_POINT_SUPPORTED - file_gamma = (float)igamma / (float)100000.0; -# ifdef PNG_READ_GAMMA_SUPPORTED - png_ptr->gamma = file_gamma; -# endif - png_set_gAMA(png_ptr, info_ptr, file_gamma); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - png_set_gAMA_fixed(png_ptr, info_ptr, igamma); -#endif -} -#endif - -#if defined(PNG_READ_sBIT_SUPPORTED) -void /* PRIVATE */ -png_handle_sBIT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_size_t truelen; - png_byte buf[4]; - - png_debug(1, "in png_handle_sBIT\n"); - - buf[0] = buf[1] = buf[2] = buf[3] = 0; - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before sBIT"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid sBIT after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->mode & PNG_HAVE_PLTE) - { - /* Should be an error, but we can cope with it */ - png_warning(png_ptr, "Out of place sBIT chunk"); - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT)) - { - png_warning(png_ptr, "Duplicate sBIT chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - truelen = 3; - else - truelen = (png_size_t)png_ptr->channels; - - if (length != truelen) - { - png_warning(png_ptr, "Incorrect sBIT chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, truelen); - if (png_crc_finish(png_ptr, 0)) - return; - - if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) - { - png_ptr->sig_bit.red = buf[0]; - png_ptr->sig_bit.green = buf[1]; - png_ptr->sig_bit.blue = buf[2]; - png_ptr->sig_bit.alpha = buf[3]; - } - else - { - png_ptr->sig_bit.gray = buf[0]; - png_ptr->sig_bit.red = buf[0]; - png_ptr->sig_bit.green = buf[0]; - png_ptr->sig_bit.blue = buf[0]; - png_ptr->sig_bit.alpha = buf[1]; - } - png_set_sBIT(png_ptr, info_ptr, &(png_ptr->sig_bit)); -} -#endif - -#if defined(PNG_READ_cHRM_SUPPORTED) -void /* PRIVATE */ -png_handle_cHRM(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_byte buf[4]; -#ifdef PNG_FLOATING_POINT_SUPPORTED - float white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y; -#endif - png_fixed_point int_x_white, int_y_white, int_x_red, int_y_red, int_x_green, - int_y_green, int_x_blue, int_y_blue; - - png_uint_32 uint_x, uint_y; - - png_debug(1, "in png_handle_cHRM\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before cHRM"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid cHRM after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->mode & PNG_HAVE_PLTE) - /* Should be an error, but we can cope with it */ - png_warning(png_ptr, "Missing PLTE before cHRM"); - - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM) -#if defined(PNG_READ_sRGB_SUPPORTED) - && !(info_ptr->valid & PNG_INFO_sRGB) -#endif - ) - { - png_warning(png_ptr, "Duplicate cHRM chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (length != 32) - { - png_warning(png_ptr, "Incorrect cHRM chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 4); - uint_x = png_get_uint_32(buf); - - png_crc_read(png_ptr, buf, 4); - uint_y = png_get_uint_32(buf); - - if (uint_x > 80000L || uint_y > 80000L || - uint_x + uint_y > 100000L) - { - png_warning(png_ptr, "Invalid cHRM white point"); - png_crc_finish(png_ptr, 24); - return; - } - int_x_white = (png_fixed_point)uint_x; - int_y_white = (png_fixed_point)uint_y; - - png_crc_read(png_ptr, buf, 4); - uint_x = png_get_uint_32(buf); - - png_crc_read(png_ptr, buf, 4); - uint_y = png_get_uint_32(buf); - - if (uint_x > 80000L || uint_y > 80000L || - uint_x + uint_y > 100000L) - { - png_warning(png_ptr, "Invalid cHRM red point"); - png_crc_finish(png_ptr, 16); - return; - } - int_x_red = (png_fixed_point)uint_x; - int_y_red = (png_fixed_point)uint_y; - - png_crc_read(png_ptr, buf, 4); - uint_x = png_get_uint_32(buf); - - png_crc_read(png_ptr, buf, 4); - uint_y = png_get_uint_32(buf); - - if (uint_x > 80000L || uint_y > 80000L || - uint_x + uint_y > 100000L) - { - png_warning(png_ptr, "Invalid cHRM green point"); - png_crc_finish(png_ptr, 8); - return; - } - int_x_green = (png_fixed_point)uint_x; - int_y_green = (png_fixed_point)uint_y; - - png_crc_read(png_ptr, buf, 4); - uint_x = png_get_uint_32(buf); - - png_crc_read(png_ptr, buf, 4); - uint_y = png_get_uint_32(buf); - - if (uint_x > 80000L || uint_y > 80000L || - uint_x + uint_y > 100000L) - { - png_warning(png_ptr, "Invalid cHRM blue point"); - png_crc_finish(png_ptr, 0); - return; - } - int_x_blue = (png_fixed_point)uint_x; - int_y_blue = (png_fixed_point)uint_y; - -#ifdef PNG_FLOATING_POINT_SUPPORTED - white_x = (float)int_x_white / (float)100000.0; - white_y = (float)int_y_white / (float)100000.0; - red_x = (float)int_x_red / (float)100000.0; - red_y = (float)int_y_red / (float)100000.0; - green_x = (float)int_x_green / (float)100000.0; - green_y = (float)int_y_green / (float)100000.0; - blue_x = (float)int_x_blue / (float)100000.0; - blue_y = (float)int_y_blue / (float)100000.0; -#endif - -#if defined(PNG_READ_sRGB_SUPPORTED) - if (info_ptr->valid & PNG_INFO_sRGB) - { - if (abs(int_x_white - 31270L) > 1000 || - abs(int_y_white - 32900L) > 1000 || - abs(int_x_red - 64000L) > 1000 || - abs(int_y_red - 33000L) > 1000 || - abs(int_x_green - 30000L) > 1000 || - abs(int_y_green - 60000L) > 1000 || - abs(int_x_blue - 15000L) > 1000 || - abs(int_y_blue - 6000L) > 1000) - { - - png_warning(png_ptr, - "Ignoring incorrect cHRM value when sRGB is also present"); -#ifndef PNG_NO_CONSOLE_IO -#ifdef PNG_FLOATING_POINT_SUPPORTED - fprintf(stderr,"wx=%f, wy=%f, rx=%f, ry=%f\n", - white_x, white_y, red_x, red_y); - fprintf(stderr,"gx=%f, gy=%f, bx=%f, by=%f\n", - green_x, green_y, blue_x, blue_y); -#else - fprintf(stderr,"wx=%ld, wy=%ld, rx=%ld, ry=%ld\n", - int_x_white, int_y_white, int_x_red, int_y_red); - fprintf(stderr,"gx=%ld, gy=%ld, bx=%ld, by=%ld\n", - int_x_green, int_y_green, int_x_blue, int_y_blue); -#endif -#endif /* PNG_NO_CONSOLE_IO */ - } - png_crc_finish(png_ptr, 0); - return; - } -#endif /* PNG_READ_sRGB_SUPPORTED */ - -#ifdef PNG_FLOATING_POINT_SUPPORTED - png_set_cHRM(png_ptr, info_ptr, - white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - png_set_cHRM_fixed(png_ptr, info_ptr, - int_x_white, int_y_white, int_x_red, int_y_red, int_x_green, - int_y_green, int_x_blue, int_y_blue); -#endif - if (png_crc_finish(png_ptr, 0)) - return; -} -#endif - -#if defined(PNG_READ_sRGB_SUPPORTED) -void /* PRIVATE */ -png_handle_sRGB(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - int intent; - png_byte buf[1]; - - png_debug(1, "in png_handle_sRGB\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before sRGB"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid sRGB after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->mode & PNG_HAVE_PLTE) - /* Should be an error, but we can cope with it */ - png_warning(png_ptr, "Out of place sRGB chunk"); - - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB)) - { - png_warning(png_ptr, "Duplicate sRGB chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (length != 1) - { - png_warning(png_ptr, "Incorrect sRGB chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 1); - if (png_crc_finish(png_ptr, 0)) - return; - - intent = buf[0]; - /* check for bad intent */ - if (intent >= PNG_sRGB_INTENT_LAST) - { - png_warning(png_ptr, "Unknown sRGB intent"); - return; - } - -#if defined(PNG_READ_gAMA_SUPPORTED) && defined(PNG_READ_GAMMA_SUPPORTED) - if ((info_ptr->valid & PNG_INFO_gAMA)) - { - int igamma; -#ifdef PNG_FIXED_POINT_SUPPORTED - igamma=(int)info_ptr->int_gamma; -#else -# ifdef PNG_FLOATING_POINT_SUPPORTED - igamma=(int)(info_ptr->gamma * 100000.); -# endif -#endif - if(igamma < 45000L || igamma > 46000L) - { - png_warning(png_ptr, - "Ignoring incorrect gAMA value when sRGB is also present"); -#ifndef PNG_NO_CONSOLE_IO -# ifdef PNG_FIXED_POINT_SUPPORTED - fprintf(stderr,"incorrect gamma=(%d/100000)\n",(int)png_ptr->int_gamma); -# else -# ifdef PNG_FLOATING_POINT_SUPPORTED - fprintf(stderr,"incorrect gamma=%f\n",png_ptr->gamma); -# endif -# endif -#endif - } - } -#endif /* PNG_READ_gAMA_SUPPORTED */ - -#ifdef PNG_READ_cHRM_SUPPORTED -#ifdef PNG_FIXED_POINT_SUPPORTED - if (info_ptr->valid & PNG_INFO_cHRM) - if (abs(info_ptr->int_x_white - 31270L) > 1000 || - abs(info_ptr->int_y_white - 32900L) > 1000 || - abs(info_ptr->int_x_red - 64000L) > 1000 || - abs(info_ptr->int_y_red - 33000L) > 1000 || - abs(info_ptr->int_x_green - 30000L) > 1000 || - abs(info_ptr->int_y_green - 60000L) > 1000 || - abs(info_ptr->int_x_blue - 15000L) > 1000 || - abs(info_ptr->int_y_blue - 6000L) > 1000) - { - png_warning(png_ptr, - "Ignoring incorrect cHRM value when sRGB is also present"); - } -#endif /* PNG_FIXED_POINT_SUPPORTED */ -#endif /* PNG_READ_cHRM_SUPPORTED */ - - png_set_sRGB_gAMA_and_cHRM(png_ptr, info_ptr, intent); -} -#endif /* PNG_READ_sRGB_SUPPORTED */ - -#if defined(PNG_READ_iCCP_SUPPORTED) -void /* PRIVATE */ -png_handle_iCCP(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -/* Note: this does not properly handle chunks that are > 64K under DOS */ -{ - png_charp chunkdata; - png_byte compression_type; - png_bytep pC; - png_charp profile; - png_uint_32 skip = 0; - png_uint_32 profile_size = 0; - png_uint_32 profile_length = 0; - png_size_t slength, prefix_length, data_length; - - png_debug(1, "in png_handle_iCCP\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before iCCP"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid iCCP after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->mode & PNG_HAVE_PLTE) - /* Should be an error, but we can cope with it */ - png_warning(png_ptr, "Out of place iCCP chunk"); - - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP)) - { - png_warning(png_ptr, "Duplicate iCCP chunk"); - png_crc_finish(png_ptr, length); - return; - } - -#ifdef PNG_MAX_MALLOC_64K - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr, "iCCP chunk too large to fit in memory"); - skip = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - - chunkdata = (png_charp)png_malloc(png_ptr, length + 1); - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)chunkdata, slength); - - if (png_crc_finish(png_ptr, skip)) - { - png_free(png_ptr, chunkdata); - return; - } - - chunkdata[slength] = 0x00; - - for (profile = chunkdata; *profile; profile++) - /* empty loop to find end of name */ ; - - ++profile; - - /* there should be at least one zero (the compression type byte) - following the separator, and we should be on it */ - if ( profile >= chunkdata + slength) - { - png_free(png_ptr, chunkdata); - png_warning(png_ptr, "Malformed iCCP chunk"); - return; - } - - /* compression_type should always be zero */ - compression_type = *profile++; - if (compression_type) - { - png_warning(png_ptr, "Ignoring nonzero compression type in iCCP chunk"); - compression_type=0x00; /* Reset it to zero (libpng-1.0.6 through 1.0.8 - wrote nonzero) */ - } - - prefix_length = profile - chunkdata; - chunkdata = png_decompress_chunk(png_ptr, compression_type, chunkdata, - slength, prefix_length, &data_length); - - profile_length = data_length - prefix_length; - - if ( prefix_length > data_length || profile_length < 4) - { - png_free(png_ptr, chunkdata); - png_warning(png_ptr, "Profile size field missing from iCCP chunk"); - return; - } - - /* Check the profile_size recorded in the first 32 bits of the ICC profile */ - pC = (png_bytep)(chunkdata+prefix_length); - profile_size = ((*(pC ))<<24) | - ((*(pC+1))<<16) | - ((*(pC+2))<< 8) | - ((*(pC+3)) ); - - if(profile_size < profile_length) - profile_length = profile_size; - - if(profile_size > profile_length) - { - png_free(png_ptr, chunkdata); - png_warning(png_ptr, "Ignoring truncated iCCP profile.\n"); - return; - } - - png_set_iCCP(png_ptr, info_ptr, chunkdata, compression_type, - chunkdata + prefix_length, profile_length); - png_free(png_ptr, chunkdata); -} -#endif /* PNG_READ_iCCP_SUPPORTED */ - -#if defined(PNG_READ_sPLT_SUPPORTED) -void /* PRIVATE */ -png_handle_sPLT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -/* Note: this does not properly handle chunks that are > 64K under DOS */ -{ - png_bytep chunkdata; - png_bytep entry_start; - png_sPLT_t new_palette; -#ifdef PNG_NO_POINTER_INDEXING - png_sPLT_entryp pp; -#endif - int data_length, entry_size, i; - png_uint_32 skip = 0; - png_size_t slength; - - png_debug(1, "in png_handle_sPLT\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before sPLT"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid sPLT after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - -#ifdef PNG_MAX_MALLOC_64K - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr, "sPLT chunk too large to fit in memory"); - skip = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - - chunkdata = (png_bytep)png_malloc(png_ptr, length + 1); - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)chunkdata, slength); - - if (png_crc_finish(png_ptr, skip)) - { - png_free(png_ptr, chunkdata); - return; - } - - chunkdata[slength] = 0x00; - - for (entry_start = chunkdata; *entry_start; entry_start++) - /* empty loop to find end of name */ ; - ++entry_start; - - /* a sample depth should follow the separator, and we should be on it */ - if (entry_start > chunkdata + slength) - { - png_free(png_ptr, chunkdata); - png_warning(png_ptr, "malformed sPLT chunk"); - return; - } - - new_palette.depth = *entry_start++; - entry_size = (new_palette.depth == 8 ? 6 : 10); - data_length = (slength - (entry_start - chunkdata)); - - /* integrity-check the data length */ - if (data_length % entry_size) - { - png_free(png_ptr, chunkdata); - png_warning(png_ptr, "sPLT chunk has bad length"); - return; - } - - new_palette.nentries = data_length / entry_size; - new_palette.entries = (png_sPLT_entryp)png_malloc( - png_ptr, new_palette.nentries * sizeof(png_sPLT_entry)); - -#ifndef PNG_NO_POINTER_INDEXING - for (i = 0; i < new_palette.nentries; i++) - { - png_sPLT_entryp pp = new_palette.entries + i; - - if (new_palette.depth == 8) - { - pp->red = *entry_start++; - pp->green = *entry_start++; - pp->blue = *entry_start++; - pp->alpha = *entry_start++; - } - else - { - pp->red = png_get_uint_16(entry_start); entry_start += 2; - pp->green = png_get_uint_16(entry_start); entry_start += 2; - pp->blue = png_get_uint_16(entry_start); entry_start += 2; - pp->alpha = png_get_uint_16(entry_start); entry_start += 2; - } - pp->frequency = png_get_uint_16(entry_start); entry_start += 2; - } -#else - pp = new_palette.entries; - for (i = 0; i < new_palette.nentries; i++) - { - - if (new_palette.depth == 8) - { - pp[i].red = *entry_start++; - pp[i].green = *entry_start++; - pp[i].blue = *entry_start++; - pp[i].alpha = *entry_start++; - } - else - { - pp[i].red = png_get_uint_16(entry_start); entry_start += 2; - pp[i].green = png_get_uint_16(entry_start); entry_start += 2; - pp[i].blue = png_get_uint_16(entry_start); entry_start += 2; - pp[i].alpha = png_get_uint_16(entry_start); entry_start += 2; - } - pp->frequency = png_get_uint_16(entry_start); entry_start += 2; - } -#endif - - /* discard all chunk data except the name and stash that */ - new_palette.name = (png_charp)chunkdata; - - png_set_sPLT(png_ptr, info_ptr, &new_palette, 1); - - png_free(png_ptr, chunkdata); - png_free(png_ptr, new_palette.entries); -} -#endif /* PNG_READ_sPLT_SUPPORTED */ - -#if defined(PNG_READ_tRNS_SUPPORTED) -void /* PRIVATE */ -png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_byte readbuf[PNG_MAX_PALETTE_LENGTH]; - - png_debug(1, "in png_handle_tRNS\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before tRNS"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid tRNS after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS)) - { - png_warning(png_ptr, "Duplicate tRNS chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (!(png_ptr->mode & PNG_HAVE_PLTE)) - { - /* Should be an error, but we can cope with it */ - png_warning(png_ptr, "Missing PLTE before tRNS"); - } - else if (length > (png_uint_32)png_ptr->num_palette) - { - png_warning(png_ptr, "Incorrect tRNS chunk length"); - png_crc_finish(png_ptr, length); - return; - } - if (length == 0) - { - png_warning(png_ptr, "Zero length tRNS chunk"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, readbuf, (png_size_t)length); - png_ptr->num_trans = (png_uint_16)length; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) - { - png_byte buf[6]; - - if (length != 6) - { - png_warning(png_ptr, "Incorrect tRNS chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, (png_size_t)length); - png_ptr->num_trans = 1; - png_ptr->trans_values.red = png_get_uint_16(buf); - png_ptr->trans_values.green = png_get_uint_16(buf + 2); - png_ptr->trans_values.blue = png_get_uint_16(buf + 4); - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY) - { - png_byte buf[6]; - - if (length != 2) - { - png_warning(png_ptr, "Incorrect tRNS chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 2); - png_ptr->num_trans = 1; - png_ptr->trans_values.gray = png_get_uint_16(buf); - } - else - { - png_warning(png_ptr, "tRNS chunk not allowed with alpha channel"); - png_crc_finish(png_ptr, length); - return; - } - - if (png_crc_finish(png_ptr, 0)) - return; - - png_set_tRNS(png_ptr, info_ptr, readbuf, png_ptr->num_trans, - &(png_ptr->trans_values)); -} -#endif - -#if defined(PNG_READ_bKGD_SUPPORTED) -void /* PRIVATE */ -png_handle_bKGD(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_size_t truelen; - png_byte buf[6]; - - png_debug(1, "in png_handle_bKGD\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before bKGD"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid bKGD after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - !(png_ptr->mode & PNG_HAVE_PLTE)) - { - png_warning(png_ptr, "Missing PLTE before bKGD"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD)) - { - png_warning(png_ptr, "Duplicate bKGD chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - truelen = 1; - else if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) - truelen = 6; - else - truelen = 2; - - if (length != truelen) - { - png_warning(png_ptr, "Incorrect bKGD chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, truelen); - if (png_crc_finish(png_ptr, 0)) - return; - - /* We convert the index value into RGB components so that we can allow - * arbitrary RGB values for background when we have transparency, and - * so it is easy to determine the RGB values of the background color - * from the info_ptr struct. */ - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - png_ptr->background.index = buf[0]; - if(info_ptr->num_palette) - { - if(buf[0] > info_ptr->num_palette) - { - png_warning(png_ptr, "Incorrect bKGD chunk index value"); - return; - } - png_ptr->background.red = - (png_uint_16)png_ptr->palette[buf[0]].red; - png_ptr->background.green = - (png_uint_16)png_ptr->palette[buf[0]].green; - png_ptr->background.blue = - (png_uint_16)png_ptr->palette[buf[0]].blue; - } - } - else if (!(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) /* GRAY */ - { - png_ptr->background.red = - png_ptr->background.green = - png_ptr->background.blue = - png_ptr->background.gray = png_get_uint_16(buf); - } - else - { - png_ptr->background.red = png_get_uint_16(buf); - png_ptr->background.green = png_get_uint_16(buf + 2); - png_ptr->background.blue = png_get_uint_16(buf + 4); - } - - png_set_bKGD(png_ptr, info_ptr, &(png_ptr->background)); -} -#endif - -#if defined(PNG_READ_hIST_SUPPORTED) -void /* PRIVATE */ -png_handle_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - int num, i; - png_uint_16 readbuf[PNG_MAX_PALETTE_LENGTH]; - - png_debug(1, "in png_handle_hIST\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before hIST"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid hIST after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (!(png_ptr->mode & PNG_HAVE_PLTE)) - { - png_warning(png_ptr, "Missing PLTE before hIST"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST)) - { - png_warning(png_ptr, "Duplicate hIST chunk"); - png_crc_finish(png_ptr, length); - return; - } - - num = (int)length / 2 ; - if (num != png_ptr->num_palette) - { - png_warning(png_ptr, "Incorrect hIST chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - for (i = 0; i < num; i++) - { - png_byte buf[2]; - - png_crc_read(png_ptr, buf, 2); - readbuf[i] = png_get_uint_16(buf); - } - - if (png_crc_finish(png_ptr, 0)) - return; - - png_set_hIST(png_ptr, info_ptr, readbuf); -} -#endif - -#if defined(PNG_READ_pHYs_SUPPORTED) -void /* PRIVATE */ -png_handle_pHYs(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_byte buf[9]; - png_uint_32 res_x, res_y; - int unit_type; - - png_debug(1, "in png_handle_pHYs\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before pHYs"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid pHYs after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) - { - png_warning(png_ptr, "Duplicate pHYs chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (length != 9) - { - png_warning(png_ptr, "Incorrect pHYs chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 9); - if (png_crc_finish(png_ptr, 0)) - return; - - res_x = png_get_uint_32(buf); - res_y = png_get_uint_32(buf + 4); - unit_type = buf[8]; - png_set_pHYs(png_ptr, info_ptr, res_x, res_y, unit_type); -} -#endif - -#if defined(PNG_READ_oFFs_SUPPORTED) -void /* PRIVATE */ -png_handle_oFFs(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_byte buf[9]; - png_int_32 offset_x, offset_y; - int unit_type; - - png_debug(1, "in png_handle_oFFs\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before oFFs"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid oFFs after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)) - { - png_warning(png_ptr, "Duplicate oFFs chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (length != 9) - { - png_warning(png_ptr, "Incorrect oFFs chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 9); - if (png_crc_finish(png_ptr, 0)) - return; - - offset_x = png_get_int_32(buf); - offset_y = png_get_int_32(buf + 4); - unit_type = buf[8]; - png_set_oFFs(png_ptr, info_ptr, offset_x, offset_y, unit_type); -} -#endif - -#if defined(PNG_READ_pCAL_SUPPORTED) -/* read the pCAL chunk (described in the PNG Extensions document) */ -void /* PRIVATE */ -png_handle_pCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_charp purpose; - png_int_32 X0, X1; - png_byte type, nparams; - png_charp buf, units, endptr; - png_charpp params; - png_size_t slength; - int i; - - png_debug(1, "in png_handle_pCAL\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before pCAL"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid pCAL after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL)) - { - png_warning(png_ptr, "Duplicate pCAL chunk"); - png_crc_finish(png_ptr, length); - return; - } - - png_debug1(2, "Allocating and reading pCAL chunk data (%lu bytes)\n", - length + 1); - purpose = (png_charp)png_malloc_warn(png_ptr, length + 1); - if (purpose == NULL) - { - png_warning(png_ptr, "No memory for pCAL purpose."); - return; - } - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)purpose, slength); - - if (png_crc_finish(png_ptr, 0)) - { - png_free(png_ptr, purpose); - return; - } - - purpose[slength] = 0x00; /* null terminate the last string */ - - png_debug(3, "Finding end of pCAL purpose string\n"); - for (buf = purpose; *buf; buf++) - /* empty loop */ ; - - endptr = purpose + slength; - - /* We need to have at least 12 bytes after the purpose string - in order to get the parameter information. */ - if (endptr <= buf + 12) - { - png_warning(png_ptr, "Invalid pCAL data"); - png_free(png_ptr, purpose); - return; - } - - png_debug(3, "Reading pCAL X0, X1, type, nparams, and units\n"); - X0 = png_get_int_32((png_bytep)buf+1); - X1 = png_get_int_32((png_bytep)buf+5); - type = buf[9]; - nparams = buf[10]; - units = buf + 11; - - png_debug(3, "Checking pCAL equation type and number of parameters\n"); - /* Check that we have the right number of parameters for known - equation types. */ - if ((type == PNG_EQUATION_LINEAR && nparams != 2) || - (type == PNG_EQUATION_BASE_E && nparams != 3) || - (type == PNG_EQUATION_ARBITRARY && nparams != 3) || - (type == PNG_EQUATION_HYPERBOLIC && nparams != 4)) - { - png_warning(png_ptr, "Invalid pCAL parameters for equation type"); - png_free(png_ptr, purpose); - return; - } - else if (type >= PNG_EQUATION_LAST) - { - png_warning(png_ptr, "Unrecognized equation type for pCAL chunk"); - } - - for (buf = units; *buf; buf++) - /* Empty loop to move past the units string. */ ; - - png_debug(3, "Allocating pCAL parameters array\n"); - params = (png_charpp)png_malloc_warn(png_ptr, (png_uint_32)(nparams - *sizeof(png_charp))) ; - if (params == NULL) - { - png_free(png_ptr, purpose); - png_warning(png_ptr, "No memory for pCAL params."); - return; - } - - /* Get pointers to the start of each parameter string. */ - for (i = 0; i < (int)nparams; i++) - { - buf++; /* Skip the null string terminator from previous parameter. */ - - png_debug1(3, "Reading pCAL parameter %d\n", i); - for (params[i] = buf; *buf != 0x00 && buf <= endptr; buf++) - /* Empty loop to move past each parameter string */ ; - - /* Make sure we haven't run out of data yet */ - if (buf > endptr) - { - png_warning(png_ptr, "Invalid pCAL data"); - png_free(png_ptr, purpose); - png_free(png_ptr, params); - return; - } - } - - png_set_pCAL(png_ptr, info_ptr, purpose, X0, X1, type, nparams, - units, params); - - png_free(png_ptr, purpose); - png_free(png_ptr, params); -} -#endif - -#if defined(PNG_READ_sCAL_SUPPORTED) -/* read the sCAL chunk */ -void /* PRIVATE */ -png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_charp buffer, ep; -#ifdef PNG_FLOATING_POINT_SUPPORTED - double width, height; - png_charp vp; -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - png_charp swidth, sheight; -#endif -#endif - png_size_t slength; - - png_debug(1, "in png_handle_sCAL\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before sCAL"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid sCAL after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sCAL)) - { - png_warning(png_ptr, "Duplicate sCAL chunk"); - png_crc_finish(png_ptr, length); - return; - } - - png_debug1(2, "Allocating and reading sCAL chunk data (%lu bytes)\n", - length + 1); - buffer = (png_charp)png_malloc_warn(png_ptr, length + 1); - if (buffer == NULL) - { - png_warning(png_ptr, "Out of memory while processing sCAL chunk"); - return; - } - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)buffer, slength); - - if (png_crc_finish(png_ptr, 0)) - { - png_free(png_ptr, buffer); - return; - } - - buffer[slength] = 0x00; /* null terminate the last string */ - - ep = buffer + 1; /* skip unit byte */ - -#ifdef PNG_FLOATING_POINT_SUPPORTED - width = strtod(ep, &vp); - if (*vp) - { - png_warning(png_ptr, "malformed width string in sCAL chunk"); - return; - } -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - swidth = (png_charp)png_malloc_warn(png_ptr, png_strlen(ep) + 1); - if (swidth == NULL) - { - png_warning(png_ptr, "Out of memory while processing sCAL chunk width"); - return; - } - png_memcpy(swidth, ep, (png_size_t)png_strlen(ep)); -#endif -#endif - - for (ep = buffer; *ep; ep++) - /* empty loop */ ; - ep++; - -#ifdef PNG_FLOATING_POINT_SUPPORTED - height = strtod(ep, &vp); - if (*vp) - { - png_warning(png_ptr, "malformed height string in sCAL chunk"); - return; - } -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - sheight = (png_charp)png_malloc_warn(png_ptr, png_strlen(ep) + 1); - if (swidth == NULL) - { - png_warning(png_ptr, "Out of memory while processing sCAL chunk height"); - return; - } - png_memcpy(sheight, ep, (png_size_t)png_strlen(ep)); -#endif -#endif - - if (buffer + slength < ep -#ifdef PNG_FLOATING_POINT_SUPPORTED - || width <= 0. || height <= 0. -#endif - ) - { - png_warning(png_ptr, "Invalid sCAL data"); - png_free(png_ptr, buffer); -#if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED) - png_free(png_ptr, swidth); - png_free(png_ptr, sheight); -#endif - return; - } - - -#ifdef PNG_FLOATING_POINT_SUPPORTED - png_set_sCAL(png_ptr, info_ptr, buffer[0], width, height); -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - png_set_sCAL_s(png_ptr, info_ptr, buffer[0], swidth, sheight); -#endif -#endif - - png_free(png_ptr, buffer); -#if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED) - png_free(png_ptr, swidth); - png_free(png_ptr, sheight); -#endif -} -#endif - -#if defined(PNG_READ_tIME_SUPPORTED) -void /* PRIVATE */ -png_handle_tIME(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_byte buf[7]; - png_time mod_time; - - png_debug(1, "in png_handle_tIME\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Out of place tIME chunk"); - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME)) - { - png_warning(png_ptr, "Duplicate tIME chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - - if (length != 7) - { - png_warning(png_ptr, "Incorrect tIME chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 7); - if (png_crc_finish(png_ptr, 0)) - return; - - mod_time.second = buf[6]; - mod_time.minute = buf[5]; - mod_time.hour = buf[4]; - mod_time.day = buf[3]; - mod_time.month = buf[2]; - mod_time.year = png_get_uint_16(buf); - - png_set_tIME(png_ptr, info_ptr, &mod_time); -} -#endif - -#if defined(PNG_READ_tEXt_SUPPORTED) -/* Note: this does not properly handle chunks that are > 64K under DOS */ -void /* PRIVATE */ -png_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_textp text_ptr; - png_charp key; - png_charp text; - png_uint_32 skip = 0; - png_size_t slength; - int ret; - - png_debug(1, "in png_handle_tEXt\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before tEXt"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - -#ifdef PNG_MAX_MALLOC_64K - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr, "tEXt chunk too large to fit in memory"); - skip = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - - key = (png_charp)png_malloc_warn(png_ptr, length + 1); - if (key == NULL) - { - png_warning(png_ptr, "No memory to process text chunk."); - return; - } - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)key, slength); - - if (png_crc_finish(png_ptr, skip)) - { - png_free(png_ptr, key); - return; - } - - key[slength] = 0x00; - - for (text = key; *text; text++) - /* empty loop to find end of key */ ; - - if (text != key + slength) - text++; - - text_ptr = (png_textp)png_malloc_warn(png_ptr, (png_uint_32)sizeof(png_text)); - if (text_ptr == NULL) - { - png_warning(png_ptr, "Not enough memory to process text chunk."); - png_free(png_ptr, key); - return; - } - text_ptr->compression = PNG_TEXT_COMPRESSION_NONE; - text_ptr->key = key; -#ifdef PNG_iTXt_SUPPORTED - text_ptr->lang = NULL; - text_ptr->lang_key = NULL; - text_ptr->itxt_length = 0; -#endif - text_ptr->text = text; - text_ptr->text_length = png_strlen(text); - - ret=png_set_text_2(png_ptr, info_ptr, text_ptr, 1); - - png_free(png_ptr, key); - png_free(png_ptr, text_ptr); - if (ret) - png_warning(png_ptr, "Insufficient memory to process text chunk."); -} -#endif - -#if defined(PNG_READ_zTXt_SUPPORTED) -/* note: this does not correctly handle chunks that are > 64K under DOS */ -void /* PRIVATE */ -png_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_textp text_ptr; - png_charp chunkdata; - png_charp text; - int comp_type; - int ret; - png_size_t slength, prefix_len, data_len; - - png_debug(1, "in png_handle_zTXt\n"); - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before zTXt"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - -#ifdef PNG_MAX_MALLOC_64K - /* We will no doubt have problems with chunks even half this size, but - there is no hard and fast rule to tell us where to stop. */ - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr,"zTXt chunk too large to fit in memory"); - png_crc_finish(png_ptr, length); - return; - } -#endif - - chunkdata = (png_charp)png_malloc_warn(png_ptr, length + 1); - if (chunkdata == NULL) - { - png_warning(png_ptr,"Out of memory processing zTXt chunk."); - return; - } - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)chunkdata, slength); - if (png_crc_finish(png_ptr, 0)) - { - png_free(png_ptr, chunkdata); - return; - } - - chunkdata[slength] = 0x00; - - for (text = chunkdata; *text; text++) - /* empty loop */ ; - - /* zTXt must have some text after the chunkdataword */ - if (text == chunkdata + slength) - { - comp_type = PNG_TEXT_COMPRESSION_NONE; - png_warning(png_ptr, "Zero length zTXt chunk"); - } - else - { - comp_type = *(++text); - if (comp_type != PNG_TEXT_COMPRESSION_zTXt) - { - png_warning(png_ptr, "Unknown compression type in zTXt chunk"); - comp_type = PNG_TEXT_COMPRESSION_zTXt; - } - text++; /* skip the compression_method byte */ - } - prefix_len = text - chunkdata; - - chunkdata = (png_charp)png_decompress_chunk(png_ptr, comp_type, chunkdata, - (png_size_t)length, prefix_len, &data_len); - - text_ptr = (png_textp)png_malloc_warn(png_ptr, (png_uint_32)sizeof(png_text)); - if (text_ptr == NULL) - { - png_warning(png_ptr,"Not enough memory to process zTXt chunk."); - png_free(png_ptr, chunkdata); - return; - } - text_ptr->compression = comp_type; - text_ptr->key = chunkdata; -#ifdef PNG_iTXt_SUPPORTED - text_ptr->lang = NULL; - text_ptr->lang_key = NULL; - text_ptr->itxt_length = 0; -#endif - text_ptr->text = chunkdata + prefix_len; - text_ptr->text_length = data_len; - - ret=png_set_text_2(png_ptr, info_ptr, text_ptr, 1); - - png_free(png_ptr, text_ptr); - png_free(png_ptr, chunkdata); - if (ret) - png_error(png_ptr, "Insufficient memory to store zTXt chunk."); -} -#endif - -#if defined(PNG_READ_iTXt_SUPPORTED) -/* note: this does not correctly handle chunks that are > 64K under DOS */ -void /* PRIVATE */ -png_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_textp text_ptr; - png_charp chunkdata; - png_charp key, lang, text, lang_key; - int comp_flag; - int comp_type = 0; - int ret; - png_size_t slength, prefix_len, data_len; - - png_debug(1, "in png_handle_iTXt\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before iTXt"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - -#ifdef PNG_MAX_MALLOC_64K - /* We will no doubt have problems with chunks even half this size, but - there is no hard and fast rule to tell us where to stop. */ - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr,"iTXt chunk too large to fit in memory"); - png_crc_finish(png_ptr, length); - return; - } -#endif - - chunkdata = (png_charp)png_malloc_warn(png_ptr, length + 1); - if (chunkdata == NULL) - { - png_warning(png_ptr, "No memory to process iTXt chunk."); - return; - } - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)chunkdata, slength); - if (png_crc_finish(png_ptr, 0)) - { - png_free(png_ptr, chunkdata); - return; - } - - chunkdata[slength] = 0x00; - - for (lang = chunkdata; *lang; lang++) - /* empty loop */ ; - lang++; /* skip NUL separator */ - - /* iTXt must have a language tag (possibly empty), two compression bytes, - translated keyword (possibly empty), and possibly some text after the - keyword */ - - if (lang >= chunkdata + slength) - { - comp_flag = PNG_TEXT_COMPRESSION_NONE; - png_warning(png_ptr, "Zero length iTXt chunk"); - } - else - { - comp_flag = *lang++; - comp_type = *lang++; - } - - for (lang_key = lang; *lang_key; lang_key++) - /* empty loop */ ; - lang_key++; /* skip NUL separator */ - - for (text = lang_key; *text; text++) - /* empty loop */ ; - text++; /* skip NUL separator */ - - prefix_len = text - chunkdata; - - key=chunkdata; - if (comp_flag) - chunkdata = png_decompress_chunk(png_ptr, comp_type, chunkdata, - (size_t)length, prefix_len, &data_len); - else - data_len=png_strlen(chunkdata + prefix_len); - text_ptr = (png_textp)png_malloc_warn(png_ptr, (png_uint_32)sizeof(png_text)); - if (text_ptr == NULL) - { - png_warning(png_ptr,"Not enough memory to process iTXt chunk."); - png_free(png_ptr, chunkdata); - return; - } - text_ptr->compression = (int)comp_flag + 1; - text_ptr->lang_key = chunkdata+(lang_key-key); - text_ptr->lang = chunkdata+(lang-key); - text_ptr->itxt_length = data_len; - text_ptr->text_length = 0; - text_ptr->key = chunkdata; - text_ptr->text = chunkdata + prefix_len; - - ret=png_set_text_2(png_ptr, info_ptr, text_ptr, 1); - - png_free(png_ptr, text_ptr); - png_free(png_ptr, chunkdata); - if (ret) - png_error(png_ptr, "Insufficient memory to store iTXt chunk."); -} -#endif - -/* This function is called when we haven't found a handler for a - chunk. If there isn't a problem with the chunk itself (ie bad - chunk name, CRC, or a critical chunk), the chunk is silently ignored - -- unless the PNG_FLAG_UNKNOWN_CHUNKS_SUPPORTED flag is on in which - case it will be saved away to be written out later. */ -void /* PRIVATE */ -png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_uint_32 skip = 0; - - png_debug(1, "in png_handle_unknown\n"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - { -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IDAT; -#endif - if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) /* not an IDAT */ - png_ptr->mode |= PNG_AFTER_IDAT; - } - - png_check_chunk_name(png_ptr, png_ptr->chunk_name); - - if (!(png_ptr->chunk_name[0] & 0x20)) - { -#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) - if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) != - HANDLE_CHUNK_ALWAYS -#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) - && png_ptr->read_user_chunk_fn == NULL -#endif - ) -#endif - png_chunk_error(png_ptr, "unknown critical chunk"); - } - -#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) - if (png_ptr->flags & PNG_FLAG_KEEP_UNKNOWN_CHUNKS) - { - png_unknown_chunk chunk; - -#ifdef PNG_MAX_MALLOC_64K - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr, "unknown chunk too large to fit in memory"); - skip = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - png_strcpy((png_charp)chunk.name, (png_charp)png_ptr->chunk_name); - chunk.data = (png_bytep)png_malloc(png_ptr, length); - chunk.size = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)chunk.data, length); -#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) - if(png_ptr->read_user_chunk_fn != NULL) - { - /* callback to user unknown chunk handler */ - if ((*(png_ptr->read_user_chunk_fn)) (png_ptr, &chunk) <= 0) - { - if (!(png_ptr->chunk_name[0] & 0x20)) - if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) != - HANDLE_CHUNK_ALWAYS) - { - png_free(png_ptr, chunk.data); - png_chunk_error(png_ptr, "unknown critical chunk"); - } - png_set_unknown_chunks(png_ptr, info_ptr, &chunk, 1); - } - } - else -#endif - png_set_unknown_chunks(png_ptr, info_ptr, &chunk, 1); - png_free(png_ptr, chunk.data); - } - else -#endif - skip = length; - - png_crc_finish(png_ptr, skip); - -#if !defined(PNG_READ_USER_CHUNKS_SUPPORTED) - info_ptr = info_ptr; /* quiet compiler warnings about unused info_ptr */ -#endif -} - -/* This function is called to verify that a chunk name is valid. - This function can't have the "critical chunk check" incorporated - into it, since in the future we will need to be able to call user - functions to handle unknown critical chunks after we check that - the chunk name itself is valid. */ - -#define isnonalpha(c) ((c) < 41 || (c) > 122 || ((c) > 90 && (c) < 97)) - -void /* PRIVATE */ -png_check_chunk_name(png_structp png_ptr, png_bytep chunk_name) -{ - png_debug(1, "in png_check_chunk_name\n"); - if (isnonalpha(chunk_name[0]) || isnonalpha(chunk_name[1]) || - isnonalpha(chunk_name[2]) || isnonalpha(chunk_name[3])) - { - png_chunk_error(png_ptr, "invalid chunk type"); - } -} - -/* Combines the row recently read in with the existing pixels in the - row. This routine takes care of alpha and transparency if requested. - This routine also handles the two methods of progressive display - of interlaced images, depending on the mask value. - The mask value describes which pixels are to be combined with - the row. The pattern always repeats every 8 pixels, so just 8 - bits are needed. A one indicates the pixel is to be combined, - a zero indicates the pixel is to be skipped. This is in addition - to any alpha or transparency value associated with the pixel. If - you want all pixels to be combined, pass 0xff (255) in mask. */ -#ifndef PNG_HAVE_ASSEMBLER_COMBINE_ROW -void /* PRIVATE */ -png_combine_row(png_structp png_ptr, png_bytep row, int mask) -{ - png_debug(1,"in png_combine_row\n"); - if (mask == 0xff) - { - png_memcpy(row, png_ptr->row_buf + 1, - (png_size_t)((png_ptr->width * - png_ptr->row_info.pixel_depth + 7) >> 3)); - } - else - { - switch (png_ptr->row_info.pixel_depth) - { - case 1: - { - png_bytep sp = png_ptr->row_buf + 1; - png_bytep dp = row; - int s_inc, s_start, s_end; - int m = 0x80; - int shift; - png_uint_32 i; - png_uint_32 row_width = png_ptr->width; - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - { - s_start = 0; - s_end = 7; - s_inc = 1; - } - else -#endif - { - s_start = 7; - s_end = 0; - s_inc = -1; - } - - shift = s_start; - - for (i = 0; i < row_width; i++) - { - if (m & mask) - { - int value; - - value = (*sp >> shift) & 0x01; - *dp &= (png_byte)((0x7f7f >> (7 - shift)) & 0xff); - *dp |= (png_byte)(value << shift); - } - - if (shift == s_end) - { - shift = s_start; - sp++; - dp++; - } - else - shift += s_inc; - - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - case 2: - { - png_bytep sp = png_ptr->row_buf + 1; - png_bytep dp = row; - int s_start, s_end, s_inc; - int m = 0x80; - int shift; - png_uint_32 i; - png_uint_32 row_width = png_ptr->width; - int value; - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - { - s_start = 0; - s_end = 6; - s_inc = 2; - } - else -#endif - { - s_start = 6; - s_end = 0; - s_inc = -2; - } - - shift = s_start; - - for (i = 0; i < row_width; i++) - { - if (m & mask) - { - value = (*sp >> shift) & 0x03; - *dp &= (png_byte)((0x3f3f >> (6 - shift)) & 0xff); - *dp |= (png_byte)(value << shift); - } - - if (shift == s_end) - { - shift = s_start; - sp++; - dp++; - } - else - shift += s_inc; - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - case 4: - { - png_bytep sp = png_ptr->row_buf + 1; - png_bytep dp = row; - int s_start, s_end, s_inc; - int m = 0x80; - int shift; - png_uint_32 i; - png_uint_32 row_width = png_ptr->width; - int value; - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - { - s_start = 0; - s_end = 4; - s_inc = 4; - } - else -#endif - { - s_start = 4; - s_end = 0; - s_inc = -4; - } - shift = s_start; - - for (i = 0; i < row_width; i++) - { - if (m & mask) - { - value = (*sp >> shift) & 0xf; - *dp &= (png_byte)((0xf0f >> (4 - shift)) & 0xff); - *dp |= (png_byte)(value << shift); - } - - if (shift == s_end) - { - shift = s_start; - sp++; - dp++; - } - else - shift += s_inc; - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - default: - { - png_bytep sp = png_ptr->row_buf + 1; - png_bytep dp = row; - png_size_t pixel_bytes = (png_ptr->row_info.pixel_depth >> 3); - png_uint_32 i; - png_uint_32 row_width = png_ptr->width; - png_byte m = 0x80; - - - for (i = 0; i < row_width; i++) - { - if (m & mask) - { - png_memcpy(dp, sp, pixel_bytes); - } - - sp += pixel_bytes; - dp += pixel_bytes; - - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - } - } -} -#endif /* !PNG_HAVE_ASSEMBLER_COMBINE_ROW */ - -#ifdef PNG_READ_INTERLACING_SUPPORTED -#ifndef PNG_HAVE_ASSEMBLER_READ_INTERLACE /* else in pngvcrd.c, pnggccrd.c */ -/* OLD pre-1.0.9 interface: -void png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass, - png_uint_32 transformations) - */ -void /* PRIVATE */ -png_do_read_interlace(png_structp png_ptr) -{ - png_row_infop row_info = &(png_ptr->row_info); - png_bytep row = png_ptr->row_buf + 1; - int pass = png_ptr->pass; - png_uint_32 transformations = png_ptr->transformations; -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - /* offset to next interlace block */ - const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; -#endif - - png_debug(1,"in png_do_read_interlace (stock C version)\n"); - if (row != NULL && row_info != NULL) - { - png_uint_32 final_width; - - final_width = row_info->width * png_pass_inc[pass]; - - switch (row_info->pixel_depth) - { - case 1: - { - png_bytep sp = row + (png_size_t)((row_info->width - 1) >> 3); - png_bytep dp = row + (png_size_t)((final_width - 1) >> 3); - int sshift, dshift; - int s_start, s_end, s_inc; - int jstop = png_pass_inc[pass]; - png_byte v; - png_uint_32 i; - int j; - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (transformations & PNG_PACKSWAP) - { - sshift = (int)((row_info->width + 7) & 0x07); - dshift = (int)((final_width + 7) & 0x07); - s_start = 7; - s_end = 0; - s_inc = -1; - } - else -#endif - { - sshift = 7 - (int)((row_info->width + 7) & 0x07); - dshift = 7 - (int)((final_width + 7) & 0x07); - s_start = 0; - s_end = 7; - s_inc = 1; - } - - for (i = 0; i < row_info->width; i++) - { - v = (png_byte)((*sp >> sshift) & 0x01); - for (j = 0; j < jstop; j++) - { - *dp &= (png_byte)((0x7f7f >> (7 - dshift)) & 0xff); - *dp |= (png_byte)(v << dshift); - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - else - dshift += s_inc; - } - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - else - sshift += s_inc; - } - break; - } - case 2: - { - png_bytep sp = row + (png_uint_32)((row_info->width - 1) >> 2); - png_bytep dp = row + (png_uint_32)((final_width - 1) >> 2); - int sshift, dshift; - int s_start, s_end, s_inc; - int jstop = png_pass_inc[pass]; - png_uint_32 i; - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (transformations & PNG_PACKSWAP) - { - sshift = (int)(((row_info->width + 3) & 0x03) << 1); - dshift = (int)(((final_width + 3) & 0x03) << 1); - s_start = 6; - s_end = 0; - s_inc = -2; - } - else -#endif - { - sshift = (int)((3 - ((row_info->width + 3) & 0x03)) << 1); - dshift = (int)((3 - ((final_width + 3) & 0x03)) << 1); - s_start = 0; - s_end = 6; - s_inc = 2; - } - - for (i = 0; i < row_info->width; i++) - { - png_byte v; - int j; - - v = (png_byte)((*sp >> sshift) & 0x03); - for (j = 0; j < jstop; j++) - { - *dp &= (png_byte)((0x3f3f >> (6 - dshift)) & 0xff); - *dp |= (png_byte)(v << dshift); - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - else - dshift += s_inc; - } - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - else - sshift += s_inc; - } - break; - } - case 4: - { - png_bytep sp = row + (png_size_t)((row_info->width - 1) >> 1); - png_bytep dp = row + (png_size_t)((final_width - 1) >> 1); - int sshift, dshift; - int s_start, s_end, s_inc; - png_uint_32 i; - int jstop = png_pass_inc[pass]; - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (transformations & PNG_PACKSWAP) - { - sshift = (int)(((row_info->width + 1) & 0x01) << 2); - dshift = (int)(((final_width + 1) & 0x01) << 2); - s_start = 4; - s_end = 0; - s_inc = -4; - } - else -#endif - { - sshift = (int)((1 - ((row_info->width + 1) & 0x01)) << 2); - dshift = (int)((1 - ((final_width + 1) & 0x01)) << 2); - s_start = 0; - s_end = 4; - s_inc = 4; - } - - for (i = 0; i < row_info->width; i++) - { - png_byte v = (png_byte)((*sp >> sshift) & 0xf); - int j; - - for (j = 0; j < jstop; j++) - { - *dp &= (png_byte)((0xf0f >> (4 - dshift)) & 0xff); - *dp |= (png_byte)(v << dshift); - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - else - dshift += s_inc; - } - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - else - sshift += s_inc; - } - break; - } - default: - { - png_size_t pixel_bytes = (row_info->pixel_depth >> 3); - png_bytep sp = row + (png_size_t)(row_info->width - 1) * pixel_bytes; - png_bytep dp = row + (png_size_t)(final_width - 1) * pixel_bytes; - - int jstop = png_pass_inc[pass]; - png_uint_32 i; - - for (i = 0; i < row_info->width; i++) - { - png_byte v[8]; - int j; - - png_memcpy(v, sp, pixel_bytes); - for (j = 0; j < jstop; j++) - { - png_memcpy(dp, v, pixel_bytes); - dp -= pixel_bytes; - } - sp -= pixel_bytes; - } - break; - } - } - row_info->width = final_width; - row_info->rowbytes = ((final_width * - (png_uint_32)row_info->pixel_depth + 7) >> 3); - } -#if !defined(PNG_READ_PACKSWAP_SUPPORTED) - transformations = transformations; /* silence compiler warning */ -#endif -} -#endif /* !PNG_HAVE_ASSEMBLER_READ_INTERLACE */ -#endif /* PNG_READ_INTERLACING_SUPPORTED */ - -#ifndef PNG_HAVE_ASSEMBLER_READ_FILTER_ROW -void /* PRIVATE */ -png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep row, - png_bytep prev_row, int filter) -{ - png_debug(1, "in png_read_filter_row\n"); - png_debug2(2,"row = %lu, filter = %d\n", png_ptr->row_number, filter); - switch (filter) - { - case PNG_FILTER_VALUE_NONE: - break; - case PNG_FILTER_VALUE_SUB: - { - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3; - png_bytep rp = row + bpp; - png_bytep lp = row; - - for (i = bpp; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + (int)(*lp++)) & 0xff); - rp++; - } - break; - } - case PNG_FILTER_VALUE_UP: - { - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - png_bytep rp = row; - png_bytep pp = prev_row; - - for (i = 0; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff); - rp++; - } - break; - } - case PNG_FILTER_VALUE_AVG: - { - png_uint_32 i; - png_bytep rp = row; - png_bytep pp = prev_row; - png_bytep lp = row; - png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3; - png_uint_32 istop = row_info->rowbytes - bpp; - - for (i = 0; i < bpp; i++) - { - *rp = (png_byte)(((int)(*rp) + - ((int)(*pp++) / 2 )) & 0xff); - rp++; - } - - for (i = 0; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + - (int)(*pp++ + *lp++) / 2 ) & 0xff); - rp++; - } - break; - } - case PNG_FILTER_VALUE_PAETH: - { - png_uint_32 i; - png_bytep rp = row; - png_bytep pp = prev_row; - png_bytep lp = row; - png_bytep cp = prev_row; - png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3; - png_uint_32 istop=row_info->rowbytes - bpp; - - for (i = 0; i < bpp; i++) - { - *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff); - rp++; - } - - for (i = 0; i < istop; i++) /* use leftover rp,pp */ - { - int a, b, c, pa, pb, pc, p; - - a = *lp++; - b = *pp++; - c = *cp++; - - p = b - c; - pc = a - c; - -#ifdef PNG_USE_ABS - pa = abs(p); - pb = abs(pc); - pc = abs(p + pc); -#else - pa = p < 0 ? -p : p; - pb = pc < 0 ? -pc : pc; - pc = (p + pc) < 0 ? -(p + pc) : p + pc; -#endif - - /* - if (pa <= pb && pa <= pc) - p = a; - else if (pb <= pc) - p = b; - else - p = c; - */ - - p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c; - - *rp = (png_byte)(((int)(*rp) + p) & 0xff); - rp++; - } - break; - } - default: - png_warning(png_ptr, "Ignoring bad adaptive filter type"); - *row=0; - break; - } -} -#endif /* !PNG_HAVE_ASSEMBLER_READ_FILTER_ROW */ - -void /* PRIVATE */ -png_read_finish_row(png_structp png_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* start of interlace block */ - const int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* offset to next interlace block */ - const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - /* start of interlace block in the y direction */ - const int png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; - - /* offset to next interlace block in the y direction */ - const int png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; -#endif - - png_debug(1, "in png_read_finish_row\n"); - png_ptr->row_number++; - if (png_ptr->row_number < png_ptr->num_rows) - return; - - if (png_ptr->interlaced) - { - png_ptr->row_number = 0; - png_memset_check(png_ptr, png_ptr->prev_row, 0, png_ptr->rowbytes + 1); - do - { - png_ptr->pass++; - if (png_ptr->pass >= 7) - break; - png_ptr->iwidth = (png_ptr->width + - png_pass_inc[png_ptr->pass] - 1 - - png_pass_start[png_ptr->pass]) / - png_pass_inc[png_ptr->pass]; - png_ptr->irowbytes = ((png_ptr->iwidth * - (png_uint_32)png_ptr->pixel_depth + 7) >> 3) +1; - - if (!(png_ptr->transformations & PNG_INTERLACE)) - { - png_ptr->num_rows = (png_ptr->height + - png_pass_yinc[png_ptr->pass] - 1 - - png_pass_ystart[png_ptr->pass]) / - png_pass_yinc[png_ptr->pass]; - if (!(png_ptr->num_rows)) - continue; - } - else /* if (png_ptr->transformations & PNG_INTERLACE) */ - break; - } while (png_ptr->iwidth == 0); - - if (png_ptr->pass < 7) - return; - } - - if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED)) - { -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IDAT; -#endif - char extra; - int ret; - - png_ptr->zstream.next_out = (Byte *)&extra; - png_ptr->zstream.avail_out = (uInt)1; - for(;;) - { - if (!(png_ptr->zstream.avail_in)) - { - while (!png_ptr->idat_size) - { - png_byte chunk_length[4]; - - png_crc_finish(png_ptr, 0); - - png_read_data(png_ptr, chunk_length, 4); - png_ptr->idat_size = png_get_uint_32(chunk_length); - - png_reset_crc(png_ptr); - png_crc_read(png_ptr, png_ptr->chunk_name, 4); - if (png_memcmp(png_ptr->chunk_name, (png_bytep)png_IDAT, 4)) - png_error(png_ptr, "Not enough image data"); - - } - png_ptr->zstream.avail_in = (uInt)png_ptr->zbuf_size; - png_ptr->zstream.next_in = png_ptr->zbuf; - if (png_ptr->zbuf_size > png_ptr->idat_size) - png_ptr->zstream.avail_in = (uInt)png_ptr->idat_size; - png_crc_read(png_ptr, png_ptr->zbuf, png_ptr->zstream.avail_in); - png_ptr->idat_size -= png_ptr->zstream.avail_in; - } - ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH); - if (ret == Z_STREAM_END) - { - if (!(png_ptr->zstream.avail_out) || png_ptr->zstream.avail_in || - png_ptr->idat_size) - png_warning(png_ptr, "Extra compressed data"); - png_ptr->mode |= PNG_AFTER_IDAT; - png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED; - break; - } - if (ret != Z_OK) - png_error(png_ptr, png_ptr->zstream.msg ? png_ptr->zstream.msg : - "Decompression Error"); - - if (!(png_ptr->zstream.avail_out)) - { - png_warning(png_ptr, "Extra compressed data."); - png_ptr->mode |= PNG_AFTER_IDAT; - png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED; - break; - } - - } - png_ptr->zstream.avail_out = 0; - } - - if (png_ptr->idat_size || png_ptr->zstream.avail_in) - png_warning(png_ptr, "Extra compression data"); - - inflateReset(&png_ptr->zstream); - - png_ptr->mode |= PNG_AFTER_IDAT; -} - -void /* PRIVATE */ -png_read_start_row(png_structp png_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* start of interlace block */ - const int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* offset to next interlace block */ - const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - /* start of interlace block in the y direction */ - const int png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; - - /* offset to next interlace block in the y direction */ - const int png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; -#endif - - int max_pixel_depth; - png_uint_32 row_bytes; - - png_debug(1, "in png_read_start_row\n"); - png_ptr->zstream.avail_in = 0; - png_init_read_transformations(png_ptr); - if (png_ptr->interlaced) - { - if (!(png_ptr->transformations & PNG_INTERLACE)) - png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 - - png_pass_ystart[0]) / png_pass_yinc[0]; - else - png_ptr->num_rows = png_ptr->height; - - png_ptr->iwidth = (png_ptr->width + - png_pass_inc[png_ptr->pass] - 1 - - png_pass_start[png_ptr->pass]) / - png_pass_inc[png_ptr->pass]; - - row_bytes = ((png_ptr->iwidth * - (png_uint_32)png_ptr->pixel_depth + 7) >> 3) +1; - png_ptr->irowbytes = (png_size_t)row_bytes; - if((png_uint_32)png_ptr->irowbytes != row_bytes) - png_error(png_ptr, "Rowbytes overflow in png_read_start_row"); - } - else - { - png_ptr->num_rows = png_ptr->height; - png_ptr->iwidth = png_ptr->width; - png_ptr->irowbytes = png_ptr->rowbytes + 1; - } - max_pixel_depth = png_ptr->pixel_depth; - -#if defined(PNG_READ_PACK_SUPPORTED) - if ((png_ptr->transformations & PNG_PACK) && png_ptr->bit_depth < 8) - max_pixel_depth = 8; -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) - if (png_ptr->transformations & PNG_EXPAND) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (png_ptr->num_trans) - max_pixel_depth = 32; - else - max_pixel_depth = 24; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY) - { - if (max_pixel_depth < 8) - max_pixel_depth = 8; - if (png_ptr->num_trans) - max_pixel_depth *= 2; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) - { - if (png_ptr->num_trans) - { - max_pixel_depth *= 4; - max_pixel_depth /= 3; - } - } - } -#endif - -#if defined(PNG_READ_FILLER_SUPPORTED) - if (png_ptr->transformations & (PNG_FILLER)) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - max_pixel_depth = 32; - else if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY) - { - if (max_pixel_depth <= 8) - max_pixel_depth = 16; - else - max_pixel_depth = 32; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) - { - if (max_pixel_depth <= 32) - max_pixel_depth = 32; - else - max_pixel_depth = 64; - } - } -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) - if (png_ptr->transformations & PNG_GRAY_TO_RGB) - { - if ( -#if defined(PNG_READ_EXPAND_SUPPORTED) - (png_ptr->num_trans && (png_ptr->transformations & PNG_EXPAND)) || -#endif -#if defined(PNG_READ_FILLER_SUPPORTED) - (png_ptr->transformations & (PNG_FILLER)) || -#endif - png_ptr->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - if (max_pixel_depth <= 16) - max_pixel_depth = 32; - else - max_pixel_depth = 64; - } - else - { - if (max_pixel_depth <= 8) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - max_pixel_depth = 32; - else - max_pixel_depth = 24; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - max_pixel_depth = 64; - else - max_pixel_depth = 48; - } - } -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) && \ -defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) - if(png_ptr->transformations & PNG_USER_TRANSFORM) - { - int user_pixel_depth=png_ptr->user_transform_depth* - png_ptr->user_transform_channels; - if(user_pixel_depth > max_pixel_depth) - max_pixel_depth=user_pixel_depth; - } -#endif - - /* align the width on the next larger 8 pixels. Mainly used - for interlacing */ - row_bytes = ((png_ptr->width + 7) & ~((png_uint_32)7)); - /* calculate the maximum bytes needed, adding a byte and a pixel - for safety's sake */ - row_bytes = ((row_bytes * (png_uint_32)max_pixel_depth + 7) >> 3) + - 1 + ((max_pixel_depth + 7) >> 3); -#ifdef PNG_MAX_MALLOC_64K - if (row_bytes > (png_uint_32)65536L) - png_error(png_ptr, "This image requires a row greater than 64KB"); -#endif - png_ptr->big_row_buf = (png_bytep)png_malloc(png_ptr, row_bytes+64); - png_ptr->row_buf = png_ptr->big_row_buf+32; -#if defined(PNG_DEBUG) && defined(PNG_USE_PNGGCCRD) - png_ptr->row_buf_size = row_bytes; -#endif - -#ifdef PNG_MAX_MALLOC_64K - if ((png_uint_32)png_ptr->rowbytes + 1 > (png_uint_32)65536L) - png_error(png_ptr, "This image requires a row greater than 64KB"); -#endif - png_ptr->prev_row = (png_bytep)png_malloc(png_ptr, (png_uint_32)( - png_ptr->rowbytes + 1)); - - png_memset_check(png_ptr, png_ptr->prev_row, 0, png_ptr->rowbytes + 1); - - png_debug1(3, "width = %lu,\n", png_ptr->width); - png_debug1(3, "height = %lu,\n", png_ptr->height); - png_debug1(3, "iwidth = %lu,\n", png_ptr->iwidth); - png_debug1(3, "num_rows = %lu\n", png_ptr->num_rows); - png_debug1(3, "rowbytes = %lu,\n", png_ptr->rowbytes); - png_debug1(3, "irowbytes = %lu,\n", png_ptr->irowbytes); - - png_ptr->flags |= PNG_FLAG_ROW_INIT; -} diff --git a/collects/plot/src/all/pngset.c b/collects/plot/src/all/pngset.c deleted file mode 100644 index 8e4e6197c9..0000000000 --- a/collects/plot/src/all/pngset.c +++ /dev/null @@ -1,1160 +0,0 @@ - -/* pngset.c - storage of image information into info struct - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * The functions here are used during reads to store data from the file - * into the info struct, and during writes to store application data - * into the info struct for writing into the file. This abstracts the - * info struct and allows us to change the structure in the future. - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_bKGD_SUPPORTED) -void PNGAPI -png_set_bKGD(png_structp png_ptr, png_infop info_ptr, png_color_16p background) -{ - png_debug1(1, "in %s storage function\n", "bKGD"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - png_memcpy(&(info_ptr->background), background, sizeof(png_color_16)); - info_ptr->valid |= PNG_INFO_bKGD; -} -#endif - -#if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_cHRM(png_structp png_ptr, png_infop info_ptr, - double white_x, double white_y, double red_x, double red_y, - double green_x, double green_y, double blue_x, double blue_y) -{ - png_debug1(1, "in %s storage function\n", "cHRM"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (white_x < 0.0 || white_y < 0.0 || - red_x < 0.0 || red_y < 0.0 || - green_x < 0.0 || green_y < 0.0 || - blue_x < 0.0 || blue_y < 0.0) - { - png_warning(png_ptr, - "Ignoring attempt to set negative chromaticity value"); - return; - } - if (white_x > 21474.83 || white_y > 21474.83 || - red_x > 21474.83 || red_y > 21474.83 || - green_x > 21474.83 || green_y > 21474.83 || - blue_x > 21474.83 || blue_y > 21474.83) - { - png_warning(png_ptr, - "Ignoring attempt to set chromaticity value exceeding 21474.83"); - return; - } - - info_ptr->x_white = (float)white_x; - info_ptr->y_white = (float)white_y; - info_ptr->x_red = (float)red_x; - info_ptr->y_red = (float)red_y; - info_ptr->x_green = (float)green_x; - info_ptr->y_green = (float)green_y; - info_ptr->x_blue = (float)blue_x; - info_ptr->y_blue = (float)blue_y; -#ifdef PNG_FIXED_POINT_SUPPORTED - info_ptr->int_x_white = (png_fixed_point)(white_x*100000.+0.5); - info_ptr->int_y_white = (png_fixed_point)(white_y*100000.+0.5); - info_ptr->int_x_red = (png_fixed_point)( red_x*100000.+0.5); - info_ptr->int_y_red = (png_fixed_point)( red_y*100000.+0.5); - info_ptr->int_x_green = (png_fixed_point)(green_x*100000.+0.5); - info_ptr->int_y_green = (png_fixed_point)(green_y*100000.+0.5); - info_ptr->int_x_blue = (png_fixed_point)( blue_x*100000.+0.5); - info_ptr->int_y_blue = (png_fixed_point)( blue_y*100000.+0.5); -#endif - info_ptr->valid |= PNG_INFO_cHRM; -} -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -void PNGAPI -png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr, - png_fixed_point white_x, png_fixed_point white_y, png_fixed_point red_x, - png_fixed_point red_y, png_fixed_point green_x, png_fixed_point green_y, - png_fixed_point blue_x, png_fixed_point blue_y) -{ - png_debug1(1, "in %s storage function\n", "cHRM"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (white_x < 0 || white_y < 0 || - red_x < 0 || red_y < 0 || - green_x < 0 || green_y < 0 || - blue_x < 0 || blue_y < 0) - { - png_warning(png_ptr, - "Ignoring attempt to set negative chromaticity value"); - return; - } - if (white_x > (double) PNG_MAX_UINT || white_y > (double) PNG_MAX_UINT || - red_x > (double) PNG_MAX_UINT || red_y > (double) PNG_MAX_UINT || - green_x > (double) PNG_MAX_UINT || green_y > (double) PNG_MAX_UINT || - blue_x > (double) PNG_MAX_UINT || blue_y > (double) PNG_MAX_UINT) - { - png_warning(png_ptr, - "Ignoring attempt to set chromaticity value exceeding 21474.83"); - return; - } - info_ptr->int_x_white = white_x; - info_ptr->int_y_white = white_y; - info_ptr->int_x_red = red_x; - info_ptr->int_y_red = red_y; - info_ptr->int_x_green = green_x; - info_ptr->int_y_green = green_y; - info_ptr->int_x_blue = blue_x; - info_ptr->int_y_blue = blue_y; -#ifdef PNG_FLOATING_POINT_SUPPORTED - info_ptr->x_white = (float)(white_x/100000.); - info_ptr->y_white = (float)(white_y/100000.); - info_ptr->x_red = (float)( red_x/100000.); - info_ptr->y_red = (float)( red_y/100000.); - info_ptr->x_green = (float)(green_x/100000.); - info_ptr->y_green = (float)(green_y/100000.); - info_ptr->x_blue = (float)( blue_x/100000.); - info_ptr->y_blue = (float)( blue_y/100000.); -#endif - info_ptr->valid |= PNG_INFO_cHRM; -} -#endif -#endif - -#if defined(PNG_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_gAMA(png_structp png_ptr, png_infop info_ptr, double file_gamma) -{ - double gamma; - png_debug1(1, "in %s storage function\n", "gAMA"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - /* Check for overflow */ - if (file_gamma > 21474.83) - { - png_warning(png_ptr, "Limiting gamma to 21474.83"); - gamma=21474.83; - } - else - gamma=file_gamma; - info_ptr->gamma = (float)gamma; -#ifdef PNG_FIXED_POINT_SUPPORTED - info_ptr->int_gamma = (int)(gamma*100000.+.5); -#endif - info_ptr->valid |= PNG_INFO_gAMA; - if(gamma == 0.0) - png_warning(png_ptr, "Setting gamma=0"); -} -#endif -void PNGAPI -png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point - int_gamma) -{ - png_fixed_point gamma; - - png_debug1(1, "in %s storage function\n", "gAMA"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (int_gamma > (png_fixed_point) PNG_MAX_UINT) - { - png_warning(png_ptr, "Limiting gamma to 21474.83"); - gamma=PNG_MAX_UINT; - } - else - { - if (int_gamma < 0) - { - png_warning(png_ptr, "Setting negative gamma to zero"); - gamma=0; - } - else - gamma=int_gamma; - } -#ifdef PNG_FLOATING_POINT_SUPPORTED - info_ptr->gamma = (float)(gamma/100000.); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - info_ptr->int_gamma = gamma; -#endif - info_ptr->valid |= PNG_INFO_gAMA; - if(gamma == 0) - png_warning(png_ptr, "Setting gamma=0"); -} -#endif - -#if defined(PNG_hIST_SUPPORTED) -void PNGAPI -png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist) -{ - int i; - - png_debug1(1, "in %s storage function\n", "hIST"); - if (png_ptr == NULL || info_ptr == NULL) - return; - if (info_ptr->num_palette == 0) - { - png_warning(png_ptr, - "Palette size 0, hIST allocation skipped."); - return; - } - -#ifdef PNG_FREE_ME_SUPPORTED - png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0); -#endif - /* Changed from info->num_palette to 256 in version 1.2.1 */ - png_ptr->hist = (png_uint_16p)png_malloc_warn(png_ptr, - (png_uint_32)(256 * sizeof (png_uint_16))); - if (png_ptr->hist == NULL) - { - png_warning(png_ptr, "Insufficient memory for hIST chunk data."); - return; - } - - for (i = 0; i < info_ptr->num_palette; i++) - png_ptr->hist[i] = hist[i]; - info_ptr->hist = png_ptr->hist; - info_ptr->valid |= PNG_INFO_hIST; - -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_HIST; -#else - png_ptr->flags |= PNG_FLAG_FREE_HIST; -#endif -} -#endif - -void PNGAPI -png_set_IHDR(png_structp png_ptr, png_infop info_ptr, - png_uint_32 width, png_uint_32 height, int bit_depth, - int color_type, int interlace_type, int compression_type, - int filter_type) -{ - int rowbytes_per_pixel; - png_debug1(1, "in %s storage function\n", "IHDR"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - /* check for width and height valid values */ - if (width == 0 || height == 0) - png_error(png_ptr, "Image width or height is zero in IHDR"); - if (width > PNG_MAX_UINT || height > PNG_MAX_UINT) - png_error(png_ptr, "Invalid image size in IHDR"); - - /* check other values */ - if (bit_depth != 1 && bit_depth != 2 && bit_depth != 4 && - bit_depth != 8 && bit_depth != 16) - png_error(png_ptr, "Invalid bit depth in IHDR"); - - if (color_type < 0 || color_type == 1 || - color_type == 5 || color_type > 6) - png_error(png_ptr, "Invalid color type in IHDR"); - - if (((color_type == PNG_COLOR_TYPE_PALETTE) && bit_depth > 8) || - ((color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_GRAY_ALPHA || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) && bit_depth < 8)) - png_error(png_ptr, "Invalid color type/bit depth combination in IHDR"); - - if (interlace_type >= PNG_INTERLACE_LAST) - png_error(png_ptr, "Unknown interlace method in IHDR"); - - if (compression_type != PNG_COMPRESSION_TYPE_BASE) - png_error(png_ptr, "Unknown compression method in IHDR"); - -#if defined(PNG_MNG_FEATURES_SUPPORTED) - /* Accept filter_method 64 (intrapixel differencing) only if - * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and - * 2. Libpng did not read a PNG signature (this filter_method is only - * used in PNG datastreams that are embedded in MNG datastreams) and - * 3. The application called png_permit_mng_features with a mask that - * included PNG_FLAG_MNG_FILTER_64 and - * 4. The filter_method is 64 and - * 5. The color_type is RGB or RGBA - */ - if((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)&&png_ptr->mng_features_permitted) - png_warning(png_ptr,"MNG features are not allowed in a PNG datastream\n"); - if(filter_type != PNG_FILTER_TYPE_BASE) - { - if(!((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (filter_type == PNG_INTRAPIXEL_DIFFERENCING) && - ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) && - (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA))) - png_error(png_ptr, "Unknown filter method in IHDR"); - if(png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) - png_warning(png_ptr, "Invalid filter method in IHDR"); - } -#else - if(filter_type != PNG_FILTER_TYPE_BASE) - png_error(png_ptr, "Unknown filter method in IHDR"); -#endif - - info_ptr->width = width; - info_ptr->height = height; - info_ptr->bit_depth = (png_byte)bit_depth; - info_ptr->color_type =(png_byte) color_type; - info_ptr->compression_type = (png_byte)compression_type; - info_ptr->filter_type = (png_byte)filter_type; - info_ptr->interlace_type = (png_byte)interlace_type; - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - info_ptr->channels = 1; - else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR) - info_ptr->channels = 3; - else - info_ptr->channels = 1; - if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA) - info_ptr->channels++; - info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth); - - /* check for overflow */ - rowbytes_per_pixel = (info_ptr->pixel_depth + 7) >> 3; - if ( width > PNG_MAX_UINT/rowbytes_per_pixel - 64) - { - png_warning(png_ptr, - "Width too large to process image data; rowbytes will overflow."); - info_ptr->rowbytes = (png_size_t)0; - } - else - info_ptr->rowbytes = (info_ptr->width * info_ptr->pixel_depth + 7) >> 3; -} - -#if defined(PNG_oFFs_SUPPORTED) -void PNGAPI -png_set_oFFs(png_structp png_ptr, png_infop info_ptr, - png_int_32 offset_x, png_int_32 offset_y, int unit_type) -{ - png_debug1(1, "in %s storage function\n", "oFFs"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->x_offset = offset_x; - info_ptr->y_offset = offset_y; - info_ptr->offset_unit_type = (png_byte)unit_type; - info_ptr->valid |= PNG_INFO_oFFs; -} -#endif - -#if defined(PNG_pCAL_SUPPORTED) -void PNGAPI -png_set_pCAL(png_structp png_ptr, png_infop info_ptr, - png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, - png_charp units, png_charpp params) -{ - png_uint_32 length; - int i; - - png_debug1(1, "in %s storage function\n", "pCAL"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - length = png_strlen(purpose) + 1; - png_debug1(3, "allocating purpose for info (%lu bytes)\n", length); - info_ptr->pcal_purpose = (png_charp)png_malloc_warn(png_ptr, length); - if (info_ptr->pcal_purpose == NULL) - { - png_warning(png_ptr, "Insufficient memory for pCAL purpose."); - return; - } - png_memcpy(info_ptr->pcal_purpose, purpose, (png_size_t)length); - - png_debug(3, "storing X0, X1, type, and nparams in info\n"); - info_ptr->pcal_X0 = X0; - info_ptr->pcal_X1 = X1; - info_ptr->pcal_type = (png_byte)type; - info_ptr->pcal_nparams = (png_byte)nparams; - - length = png_strlen(units) + 1; - png_debug1(3, "allocating units for info (%lu bytes)\n", length); - info_ptr->pcal_units = (png_charp)png_malloc_warn(png_ptr, length); - if (info_ptr->pcal_units == NULL) - { - png_warning(png_ptr, "Insufficient memory for pCAL units."); - return; - } - png_memcpy(info_ptr->pcal_units, units, (png_size_t)length); - - info_ptr->pcal_params = (png_charpp)png_malloc_warn(png_ptr, - (png_uint_32)((nparams + 1) * sizeof(png_charp))); - if (info_ptr->pcal_params == NULL) - { - png_warning(png_ptr, "Insufficient memory for pCAL params."); - return; - } - - info_ptr->pcal_params[nparams] = NULL; - - for (i = 0; i < nparams; i++) - { - length = png_strlen(params[i]) + 1; - png_debug2(3, "allocating parameter %d for info (%lu bytes)\n", i, length); - info_ptr->pcal_params[i] = (png_charp)png_malloc_warn(png_ptr, length); - if (info_ptr->pcal_params[i] == NULL) - { - png_warning(png_ptr, "Insufficient memory for pCAL parameter."); - return; - } - png_memcpy(info_ptr->pcal_params[i], params[i], (png_size_t)length); - } - - info_ptr->valid |= PNG_INFO_pCAL; -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_PCAL; -#endif -} -#endif - -#if defined(PNG_READ_sCAL_SUPPORTED) || defined(PNG_WRITE_sCAL_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_sCAL(png_structp png_ptr, png_infop info_ptr, - int unit, double width, double height) -{ - png_debug1(1, "in %s storage function\n", "sCAL"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->scal_unit = (png_byte)unit; - info_ptr->scal_pixel_width = width; - info_ptr->scal_pixel_height = height; - - info_ptr->valid |= PNG_INFO_sCAL; -} -#else -#ifdef PNG_FIXED_POINT_SUPPORTED -void PNGAPI -png_set_sCAL_s(png_structp png_ptr, png_infop info_ptr, - int unit, png_charp swidth, png_charp sheight) -{ - png_uint_32 length; - - png_debug1(1, "in %s storage function\n", "sCAL"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->scal_unit = (png_byte)unit; - - length = png_strlen(swidth) + 1; - png_debug1(3, "allocating unit for info (%d bytes)\n", length); - info_ptr->scal_s_width = (png_charp)png_malloc(png_ptr, length); - png_memcpy(info_ptr->scal_s_width, swidth, (png_size_t)length); - - length = png_strlen(sheight) + 1; - png_debug1(3, "allocating unit for info (%d bytes)\n", length); - info_ptr->scal_s_height = (png_charp)png_malloc(png_ptr, length); - png_memcpy(info_ptr->scal_s_height, sheight, (png_size_t)length); - - info_ptr->valid |= PNG_INFO_sCAL; -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_SCAL; -#endif -} -#endif -#endif -#endif - -#if defined(PNG_pHYs_SUPPORTED) -void PNGAPI -png_set_pHYs(png_structp png_ptr, png_infop info_ptr, - png_uint_32 res_x, png_uint_32 res_y, int unit_type) -{ - png_debug1(1, "in %s storage function\n", "pHYs"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->x_pixels_per_unit = res_x; - info_ptr->y_pixels_per_unit = res_y; - info_ptr->phys_unit_type = (png_byte)unit_type; - info_ptr->valid |= PNG_INFO_pHYs; -} -#endif - -void PNGAPI -png_set_PLTE(png_structp png_ptr, png_infop info_ptr, - png_colorp palette, int num_palette) -{ - - png_debug1(1, "in %s storage function\n", "PLTE"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - /* - * It may not actually be necessary to set png_ptr->palette here; - * we do it for backward compatibility with the way the png_handle_tRNS - * function used to do the allocation. - */ -#ifdef PNG_FREE_ME_SUPPORTED - png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0); -#endif - /* Changed in libpng-1.2.1 to allocate 256 instead of num_palette entries, - in case of an invalid PNG file that has too-large sample values. */ - png_ptr->palette = (png_colorp)png_zalloc(png_ptr, (uInt)256, - sizeof (png_color)); - if (png_ptr->palette == NULL) - png_error(png_ptr, "Unable to malloc palette"); - png_memcpy(png_ptr->palette, palette, num_palette * sizeof (png_color)); - info_ptr->palette = png_ptr->palette; - info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette; - -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_PLTE; -#else - png_ptr->flags |= PNG_FLAG_FREE_PLTE; -#endif - - info_ptr->valid |= PNG_INFO_PLTE; -} - -#if defined(PNG_sBIT_SUPPORTED) -void PNGAPI -png_set_sBIT(png_structp png_ptr, png_infop info_ptr, - png_color_8p sig_bit) -{ - png_debug1(1, "in %s storage function\n", "sBIT"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - png_memcpy(&(info_ptr->sig_bit), sig_bit, sizeof (png_color_8)); - info_ptr->valid |= PNG_INFO_sBIT; -} -#endif - -#if defined(PNG_sRGB_SUPPORTED) -void PNGAPI -png_set_sRGB(png_structp png_ptr, png_infop info_ptr, int intent) -{ - png_debug1(1, "in %s storage function\n", "sRGB"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->srgb_intent = (png_byte)intent; - info_ptr->valid |= PNG_INFO_sRGB; -} - -void PNGAPI -png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr, - int intent) -{ -#if defined(PNG_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED - float file_gamma; -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - png_fixed_point int_file_gamma; -#endif -#endif -#if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED - float white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y; -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - png_fixed_point int_white_x, int_white_y, int_red_x, int_red_y, int_green_x, - int_green_y, int_blue_x, int_blue_y; -#endif -#endif - png_debug1(1, "in %s storage function\n", "sRGB_gAMA_and_cHRM"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - png_set_sRGB(png_ptr, info_ptr, intent); - -#if defined(PNG_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED - file_gamma = (float).45455; - png_set_gAMA(png_ptr, info_ptr, file_gamma); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - int_file_gamma = 45455L; - png_set_gAMA_fixed(png_ptr, info_ptr, int_file_gamma); -#endif -#endif - -#if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FIXED_POINT_SUPPORTED - int_white_x = 31270L; - int_white_y = 32900L; - int_red_x = 64000L; - int_red_y = 33000L; - int_green_x = 30000L; - int_green_y = 60000L; - int_blue_x = 15000L; - int_blue_y = 6000L; - - png_set_cHRM_fixed(png_ptr, info_ptr, - int_white_x, int_white_y, int_red_x, int_red_y, int_green_x, int_green_y, - int_blue_x, int_blue_y); -#endif -#ifdef PNG_FLOATING_POINT_SUPPORTED - white_x = (float).3127; - white_y = (float).3290; - red_x = (float).64; - red_y = (float).33; - green_x = (float).30; - green_y = (float).60; - blue_x = (float).15; - blue_y = (float).06; - - png_set_cHRM(png_ptr, info_ptr, - white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y); -#endif -#endif -} -#endif - - -#if defined(PNG_iCCP_SUPPORTED) -void PNGAPI -png_set_iCCP(png_structp png_ptr, png_infop info_ptr, - png_charp name, int compression_type, - png_charp profile, png_uint_32 proflen) -{ - png_charp new_iccp_name; - png_charp new_iccp_profile; - - png_debug1(1, "in %s storage function\n", "iCCP"); - if (png_ptr == NULL || info_ptr == NULL || name == NULL || profile == NULL) - return; - - new_iccp_name = (png_charp)png_malloc(png_ptr, png_strlen(name)+1); - png_strcpy(new_iccp_name, name); - new_iccp_profile = (png_charp)png_malloc(png_ptr, proflen); - png_memcpy(new_iccp_profile, profile, (png_size_t)proflen); - - png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, 0); - - info_ptr->iccp_proflen = proflen; - info_ptr->iccp_name = new_iccp_name; - info_ptr->iccp_profile = new_iccp_profile; - /* Compression is always zero but is here so the API and info structure - * does not have to change if we introduce multiple compression types */ - info_ptr->iccp_compression = (png_byte)compression_type; -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_ICCP; -#endif - info_ptr->valid |= PNG_INFO_iCCP; -} -#endif - -#if defined(PNG_TEXT_SUPPORTED) -void PNGAPI -png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, - int num_text) -{ - int ret; - ret=png_set_text_2(png_ptr, info_ptr, text_ptr, num_text); - if (ret) - png_error(png_ptr, "Insufficient memory to store text"); -} - -int /* PRIVATE */ -png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, - int num_text) -{ - int i; - - png_debug1(1, "in %s storage function\n", (png_ptr->chunk_name[0] == '\0' ? - "text" : (png_const_charp)png_ptr->chunk_name)); - - if (png_ptr == NULL || info_ptr == NULL || num_text == 0) - return(0); - - /* Make sure we have enough space in the "text" array in info_struct - * to hold all of the incoming text_ptr objects. - */ - if (info_ptr->num_text + num_text > info_ptr->max_text) - { - if (info_ptr->text != NULL) - { - png_textp old_text; - int old_max; - - old_max = info_ptr->max_text; - info_ptr->max_text = info_ptr->num_text + num_text + 8; - old_text = info_ptr->text; - info_ptr->text = (png_textp)png_malloc_warn(png_ptr, - (png_uint_32)(info_ptr->max_text * sizeof (png_text))); - if (info_ptr->text == NULL) - { - png_free(png_ptr, old_text); - return(1); - } - png_memcpy(info_ptr->text, old_text, (png_size_t)(old_max * - sizeof(png_text))); - png_free(png_ptr, old_text); - } - else - { - info_ptr->max_text = num_text + 8; - info_ptr->num_text = 0; - info_ptr->text = (png_textp)png_malloc_warn(png_ptr, - (png_uint_32)(info_ptr->max_text * sizeof (png_text))); - if (info_ptr->text == NULL) - return(1); -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_TEXT; -#endif - } - png_debug1(3, "allocated %d entries for info_ptr->text\n", - info_ptr->max_text); - } - for (i = 0; i < num_text; i++) - { - png_size_t text_length,key_len; - png_size_t lang_len,lang_key_len; - png_textp textp = &(info_ptr->text[info_ptr->num_text]); - - if (text_ptr[i].key == NULL) - continue; - - key_len = png_strlen(text_ptr[i].key); - - if(text_ptr[i].compression <= 0) - { - lang_len = 0; - lang_key_len = 0; - } - else -#ifdef PNG_iTXt_SUPPORTED - { - /* set iTXt data */ - if (text_ptr[i].lang != NULL) - lang_len = png_strlen(text_ptr[i].lang); - else - lang_len = 0; - if (text_ptr[i].lang_key != NULL) - lang_key_len = png_strlen(text_ptr[i].lang_key); - else - lang_key_len = 0; - } -#else - { - png_warning(png_ptr, "iTXt chunk not supported."); - continue; - } -#endif - - if (text_ptr[i].text == NULL || text_ptr[i].text[0] == '\0') - { - text_length = 0; -#ifdef PNG_iTXt_SUPPORTED - if(text_ptr[i].compression > 0) - textp->compression = PNG_ITXT_COMPRESSION_NONE; - else -#endif - textp->compression = PNG_TEXT_COMPRESSION_NONE; - } - else - { - text_length = png_strlen(text_ptr[i].text); - textp->compression = text_ptr[i].compression; - } - - textp->key = (png_charp)png_malloc_warn(png_ptr, - (png_uint_32)(key_len + text_length + lang_len + lang_key_len + 4)); - if (textp->key == NULL) - return(1); - png_debug2(2, "Allocated %lu bytes at %x in png_set_text\n", - (png_uint_32)(key_len + lang_len + lang_key_len + text_length + 4), - (int)textp->key); - - png_memcpy(textp->key, text_ptr[i].key, - (png_size_t)(key_len)); - *(textp->key+key_len) = '\0'; -#ifdef PNG_iTXt_SUPPORTED - if (text_ptr[i].compression > 0) - { - textp->lang=textp->key + key_len + 1; - png_memcpy(textp->lang, text_ptr[i].lang, lang_len); - *(textp->lang+lang_len) = '\0'; - textp->lang_key=textp->lang + lang_len + 1; - png_memcpy(textp->lang_key, text_ptr[i].lang_key, lang_key_len); - *(textp->lang_key+lang_key_len) = '\0'; - textp->text=textp->lang_key + lang_key_len + 1; - } - else -#endif - { -#ifdef PNG_iTXt_SUPPORTED - textp->lang=NULL; - textp->lang_key=NULL; -#endif - textp->text=textp->key + key_len + 1; - } - if(text_length) - png_memcpy(textp->text, text_ptr[i].text, - (png_size_t)(text_length)); - *(textp->text+text_length) = '\0'; - -#ifdef PNG_iTXt_SUPPORTED - if(textp->compression > 0) - { - textp->text_length = 0; - textp->itxt_length = text_length; - } - else -#endif - { - textp->text_length = text_length; -#ifdef PNG_iTXt_SUPPORTED - textp->itxt_length = 0; -#endif - } - info_ptr->text[info_ptr->num_text]= *textp; - info_ptr->num_text++; - png_debug1(3, "transferred text chunk %d\n", info_ptr->num_text); - } - return(0); -} -#endif - -#if defined(PNG_tIME_SUPPORTED) -void PNGAPI -png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time) -{ - png_debug1(1, "in %s storage function\n", "tIME"); - if (png_ptr == NULL || info_ptr == NULL || - (png_ptr->mode & PNG_WROTE_tIME)) - return; - - png_memcpy(&(info_ptr->mod_time), mod_time, sizeof (png_time)); - info_ptr->valid |= PNG_INFO_tIME; -} -#endif - -#if defined(PNG_tRNS_SUPPORTED) -void PNGAPI -png_set_tRNS(png_structp png_ptr, png_infop info_ptr, - png_bytep trans, int num_trans, png_color_16p trans_values) -{ - png_debug1(1, "in %s storage function\n", "tRNS"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (trans != NULL) - { - /* - * It may not actually be necessary to set png_ptr->trans here; - * we do it for backward compatibility with the way the png_handle_tRNS - * function used to do the allocation. - */ -#ifdef PNG_FREE_ME_SUPPORTED - png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0); -#endif - /* Changed from num_trans to 256 in version 1.2.1 */ - png_ptr->trans = info_ptr->trans = (png_bytep)png_malloc(png_ptr, - (png_uint_32)256); - png_memcpy(info_ptr->trans, trans, (png_size_t)num_trans); -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_TRNS; -#else - png_ptr->flags |= PNG_FLAG_FREE_TRNS; -#endif - } - - if (trans_values != NULL) - { - png_memcpy(&(info_ptr->trans_values), trans_values, - sizeof(png_color_16)); - if (num_trans == 0) - num_trans = 1; - } - info_ptr->num_trans = (png_uint_16)num_trans; - info_ptr->valid |= PNG_INFO_tRNS; -} -#endif - -#if defined(PNG_sPLT_SUPPORTED) -void PNGAPI -png_set_sPLT(png_structp png_ptr, - png_infop info_ptr, png_sPLT_tp entries, int nentries) -{ - png_sPLT_tp np; - int i; - - np = (png_sPLT_tp)png_malloc_warn(png_ptr, - (info_ptr->splt_palettes_num + nentries) * sizeof(png_sPLT_t)); - if (np == NULL) - { - png_warning(png_ptr, "No memory for sPLT palettes."); - return; - } - - png_memcpy(np, info_ptr->splt_palettes, - info_ptr->splt_palettes_num * sizeof(png_sPLT_t)); - png_free(png_ptr, info_ptr->splt_palettes); - info_ptr->splt_palettes=NULL; - - for (i = 0; i < nentries; i++) - { - png_sPLT_tp to = np + info_ptr->splt_palettes_num + i; - png_sPLT_tp from = entries + i; - - to->name = (png_charp)png_malloc(png_ptr, - png_strlen(from->name) + 1); - png_strcpy(to->name, from->name); - to->entries = (png_sPLT_entryp)png_malloc(png_ptr, - from->nentries * sizeof(png_sPLT_t)); - png_memcpy(to->entries, from->entries, - from->nentries * sizeof(png_sPLT_t)); - to->nentries = from->nentries; - to->depth = from->depth; - } - - info_ptr->splt_palettes = np; - info_ptr->splt_palettes_num += nentries; - info_ptr->valid |= PNG_INFO_sPLT; -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_SPLT; -#endif -} -#endif /* PNG_sPLT_SUPPORTED */ - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -void PNGAPI -png_set_unknown_chunks(png_structp png_ptr, - png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns) -{ - png_unknown_chunkp np; - int i; - - if (png_ptr == NULL || info_ptr == NULL || num_unknowns == 0) - return; - - np = (png_unknown_chunkp)png_malloc_warn(png_ptr, - (info_ptr->unknown_chunks_num + num_unknowns) * - sizeof(png_unknown_chunk)); - if (np == NULL) - { - png_warning(png_ptr, "Out of memory while processing unknown chunk."); - return; - } - - png_memcpy(np, info_ptr->unknown_chunks, - info_ptr->unknown_chunks_num * sizeof(png_unknown_chunk)); - png_free(png_ptr, info_ptr->unknown_chunks); - info_ptr->unknown_chunks=NULL; - - for (i = 0; i < num_unknowns; i++) - { - png_unknown_chunkp to = np + info_ptr->unknown_chunks_num + i; - png_unknown_chunkp from = unknowns + i; - - png_strcpy((png_charp)to->name, (png_charp)from->name); - to->data = (png_bytep)png_malloc(png_ptr, from->size); - if (to->data == NULL) - png_warning(png_ptr, "Out of memory while processing unknown chunk."); - else - { - png_memcpy(to->data, from->data, from->size); - to->size = from->size; - - /* note our location in the read or write sequence */ - to->location = (png_byte)(png_ptr->mode & 0xff); - } - } - - info_ptr->unknown_chunks = np; - info_ptr->unknown_chunks_num += num_unknowns; -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_UNKN; -#endif -} -void PNGAPI -png_set_unknown_chunk_location(png_structp png_ptr, png_infop info_ptr, - int chunk, int location) -{ - if(png_ptr != NULL && info_ptr != NULL && chunk >= 0 && chunk < - (int)info_ptr->unknown_chunks_num) - info_ptr->unknown_chunks[chunk].location = (png_byte)location; -} -#endif - -#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ - defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) -void PNGAPI -png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted) -{ - /* This function is deprecated in favor of png_permit_mng_features() - and will be removed from libpng-2.0.0 */ - png_debug(1, "in png_permit_empty_plte, DEPRECATED.\n"); - if (png_ptr == NULL) - return; - png_ptr->mng_features_permitted = (png_byte) - ((png_ptr->mng_features_permitted & (~(PNG_FLAG_MNG_EMPTY_PLTE))) | - ((empty_plte_permitted & PNG_FLAG_MNG_EMPTY_PLTE))); -} -#endif - -#if defined(PNG_MNG_FEATURES_SUPPORTED) -png_uint_32 PNGAPI -png_permit_mng_features (png_structp png_ptr, png_uint_32 mng_features) -{ - png_debug(1, "in png_permit_mng_features\n"); - if (png_ptr == NULL) - return (png_uint_32)0; - png_ptr->mng_features_permitted = - (png_byte)(mng_features & PNG_ALL_MNG_FEATURES); - return (png_uint_32)png_ptr->mng_features_permitted; -} -#endif - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -void PNGAPI -png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep - chunk_list, int num_chunks) -{ - png_bytep new_list, p; - int i, old_num_chunks; - if (num_chunks == 0) - { - if(keep == HANDLE_CHUNK_ALWAYS || keep == HANDLE_CHUNK_IF_SAFE) - png_ptr->flags |= PNG_FLAG_KEEP_UNKNOWN_CHUNKS; - else - png_ptr->flags &= ~PNG_FLAG_KEEP_UNKNOWN_CHUNKS; - - if(keep == HANDLE_CHUNK_ALWAYS) - png_ptr->flags |= PNG_FLAG_KEEP_UNSAFE_CHUNKS; - else - png_ptr->flags &= ~PNG_FLAG_KEEP_UNSAFE_CHUNKS; - return; - } - if (chunk_list == NULL) - return; - old_num_chunks=png_ptr->num_chunk_list; - new_list=(png_bytep)png_malloc(png_ptr, - (png_uint_32)(5*(num_chunks+old_num_chunks))); - if(png_ptr->chunk_list != NULL) - { - png_memcpy(new_list, png_ptr->chunk_list, - (png_size_t)(5*old_num_chunks)); - png_free(png_ptr, png_ptr->chunk_list); - png_ptr->chunk_list=NULL; - } - png_memcpy(new_list+5*old_num_chunks, chunk_list, - (png_size_t)(5*num_chunks)); - for (p=new_list+5*old_num_chunks+4, i=0; inum_chunk_list=old_num_chunks+num_chunks; - png_ptr->chunk_list=new_list; -#ifdef PNG_FREE_ME_SUPPORTED - png_ptr->free_me |= PNG_FREE_LIST; -#endif -} -#endif - -#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) -void PNGAPI -png_set_read_user_chunk_fn(png_structp png_ptr, png_voidp user_chunk_ptr, - png_user_chunk_ptr read_user_chunk_fn) -{ - png_debug(1, "in png_set_read_user_chunk_fn\n"); - png_ptr->read_user_chunk_fn = read_user_chunk_fn; - png_ptr->user_chunk_ptr = user_chunk_ptr; -} -#endif - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -void PNGAPI -png_set_rows(png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers) -{ - png_debug1(1, "in %s storage function\n", "rows"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - if(info_ptr->row_pointers && (info_ptr->row_pointers != row_pointers)) - png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0); - info_ptr->row_pointers = row_pointers; - if(row_pointers) - info_ptr->valid |= PNG_INFO_IDAT; -} -#endif - -void PNGAPI -png_set_compression_buffer_size(png_structp png_ptr, png_uint_32 size) -{ - if(png_ptr->zbuf) - png_free(png_ptr, png_ptr->zbuf); - png_ptr->zbuf_size = (png_size_t)size; - png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, size); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; -} - -void PNGAPI -png_set_invalid(png_structp png_ptr, png_infop info_ptr, int mask) -{ - if (png_ptr && info_ptr) - info_ptr->valid &= ~(mask); -} - - -#ifndef PNG_1_0_X -#ifdef PNG_ASSEMBLER_CODE_SUPPORTED -/* this function was added to libpng 1.2.0 and should always exist by default */ -void PNGAPI -png_set_asm_flags (png_structp png_ptr, png_uint_32 asm_flags) -{ - png_uint_32 settable_asm_flags; - png_uint_32 settable_mmx_flags; - - settable_mmx_flags = -#ifdef PNG_HAVE_ASSEMBLER_COMBINE_ROW - PNG_ASM_FLAG_MMX_READ_COMBINE_ROW | -#endif -#ifdef PNG_HAVE_ASSEMBLER_READ_INTERLACE - PNG_ASM_FLAG_MMX_READ_INTERLACE | -#endif -#ifdef PNG_HAVE_ASSEMBLER_READ_FILTER_ROW - PNG_ASM_FLAG_MMX_READ_FILTER_SUB | - PNG_ASM_FLAG_MMX_READ_FILTER_UP | - PNG_ASM_FLAG_MMX_READ_FILTER_AVG | - PNG_ASM_FLAG_MMX_READ_FILTER_PAETH | -#endif - 0; - - /* could be some non-MMX ones in the future, but not currently: */ - settable_asm_flags = settable_mmx_flags; - - if (!(png_ptr->asm_flags & PNG_ASM_FLAG_MMX_SUPPORT_COMPILED) || - !(png_ptr->asm_flags & PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU)) - { - /* clear all MMX flags if MMX isn't supported */ - settable_asm_flags &= ~settable_mmx_flags; - png_ptr->asm_flags &= ~settable_mmx_flags; - } - - /* we're replacing the settable bits with those passed in by the user, - * so first zero them out of the master copy, then logical-OR in the - * allowed subset that was requested */ - - png_ptr->asm_flags &= ~settable_asm_flags; /* zero them */ - png_ptr->asm_flags |= (asm_flags & settable_asm_flags); /* set them */ -} -#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */ - -#ifdef PNG_ASSEMBLER_CODE_SUPPORTED -/* this function was added to libpng 1.2.0 */ -void PNGAPI -png_set_mmx_thresholds (png_structp png_ptr, - png_byte mmx_bitdepth_threshold, - png_uint_32 mmx_rowbytes_threshold) -{ - png_ptr->mmx_bitdepth_threshold = mmx_bitdepth_threshold; - png_ptr->mmx_rowbytes_threshold = mmx_rowbytes_threshold; -} -#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */ -#endif /* ?PNG_1_0_X */ diff --git a/collects/plot/src/all/pngtrans.c b/collects/plot/src/all/pngtrans.c deleted file mode 100644 index f08fb4ecfe..0000000000 --- a/collects/plot/src/all/pngtrans.c +++ /dev/null @@ -1,640 +0,0 @@ - -/* pngtrans.c - transforms the data in a row (used by both readers and writers) - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -/* turn on BGR-to-RGB mapping */ -void PNGAPI -png_set_bgr(png_structp png_ptr) -{ - png_debug(1, "in png_set_bgr\n"); - png_ptr->transformations |= PNG_BGR; -} -#endif - -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -/* turn on 16 bit byte swapping */ -void PNGAPI -png_set_swap(png_structp png_ptr) -{ - png_debug(1, "in png_set_swap\n"); - if (png_ptr->bit_depth == 16) - png_ptr->transformations |= PNG_SWAP_BYTES; -} -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED) -/* turn on pixel packing */ -void PNGAPI -png_set_packing(png_structp png_ptr) -{ - png_debug(1, "in png_set_packing\n"); - if (png_ptr->bit_depth < 8) - { - png_ptr->transformations |= PNG_PACK; - png_ptr->usr_bit_depth = 8; - } -} -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED) -/* turn on packed pixel swapping */ -void PNGAPI -png_set_packswap(png_structp png_ptr) -{ - png_debug(1, "in png_set_packswap\n"); - if (png_ptr->bit_depth < 8) - png_ptr->transformations |= PNG_PACKSWAP; -} -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) -void PNGAPI -png_set_shift(png_structp png_ptr, png_color_8p true_bits) -{ - png_debug(1, "in png_set_shift\n"); - png_ptr->transformations |= PNG_SHIFT; - png_ptr->shift = *true_bits; -} -#endif - -#if defined(PNG_READ_INTERLACING_SUPPORTED) || \ - defined(PNG_WRITE_INTERLACING_SUPPORTED) -int PNGAPI -png_set_interlace_handling(png_structp png_ptr) -{ - png_debug(1, "in png_set_interlace handling\n"); - if (png_ptr->interlaced) - { - png_ptr->transformations |= PNG_INTERLACE; - return (7); - } - - return (1); -} -#endif - -#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) -/* Add a filler byte on read, or remove a filler or alpha byte on write. - * The filler type has changed in v0.95 to allow future 2-byte fillers - * for 48-bit input data, as well as to avoid problems with some compilers - * that don't like bytes as parameters. - */ -void PNGAPI -png_set_filler(png_structp png_ptr, png_uint_32 filler, int filler_loc) -{ - png_debug(1, "in png_set_filler\n"); - png_ptr->transformations |= PNG_FILLER; - png_ptr->filler = (png_byte)filler; - if (filler_loc == PNG_FILLER_AFTER) - png_ptr->flags |= PNG_FLAG_FILLER_AFTER; - else - png_ptr->flags &= ~PNG_FLAG_FILLER_AFTER; - - /* This should probably go in the "do_filler" routine. - * I attempted to do that in libpng-1.0.1a but that caused problems - * so I restored it in libpng-1.0.2a - */ - - if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) - { - png_ptr->usr_channels = 4; - } - - /* Also I added this in libpng-1.0.2a (what happens when we expand - * a less-than-8-bit grayscale to GA? */ - - if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY && png_ptr->bit_depth >= 8) - { - png_ptr->usr_channels = 2; - } -} -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \ - defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) -void PNGAPI -png_set_swap_alpha(png_structp png_ptr) -{ - png_debug(1, "in png_set_swap_alpha\n"); - png_ptr->transformations |= PNG_SWAP_ALPHA; -} -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \ - defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) -void PNGAPI -png_set_invert_alpha(png_structp png_ptr) -{ - png_debug(1, "in png_set_invert_alpha\n"); - png_ptr->transformations |= PNG_INVERT_ALPHA; -} -#endif - -#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) -void PNGAPI -png_set_invert_mono(png_structp png_ptr) -{ - png_debug(1, "in png_set_invert_mono\n"); - png_ptr->transformations |= PNG_INVERT_MONO; -} - -/* invert monochrome grayscale data */ -void /* PRIVATE */ -png_do_invert(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_invert\n"); - /* This test removed from libpng version 1.0.13 and 1.2.0: - * if (row_info->bit_depth == 1 && - */ -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row == NULL || row_info == NULL) - return; -#endif - if (row_info->color_type == PNG_COLOR_TYPE_GRAY) - { - png_bytep rp = row; - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - - for (i = 0; i < istop; i++) - { - *rp = (png_byte)(~(*rp)); - rp++; - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA && - row_info->bit_depth == 8) - { - png_bytep rp = row; - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - - for (i = 0; i < istop; i+=2) - { - *rp = (png_byte)(~(*rp)); - rp+=2; - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA && - row_info->bit_depth == 16) - { - png_bytep rp = row; - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - - for (i = 0; i < istop; i+=4) - { - *rp = (png_byte)(~(*rp)); - *(rp+1) = (png_byte)(~(*(rp+1))); - rp+=4; - } - } -} -#endif - -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -/* swaps byte order on 16 bit depth images */ -void /* PRIVATE */ -png_do_swap(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_swap\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - row_info->bit_depth == 16) - { - png_bytep rp = row; - png_uint_32 i; - png_uint_32 istop= row_info->width * row_info->channels; - - for (i = 0; i < istop; i++, rp += 2) - { - png_byte t = *rp; - *rp = *(rp + 1); - *(rp + 1) = t; - } - } -} -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED) -static png_byte onebppswaptable[256] = { - 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, - 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0, - 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, - 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, - 0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, - 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4, - 0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, - 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC, - 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, - 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2, - 0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA, - 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA, - 0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, - 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6, - 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE, - 0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE, - 0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1, - 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1, - 0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, - 0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9, - 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5, - 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5, - 0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED, - 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD, - 0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, - 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3, - 0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB, - 0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB, - 0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7, - 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7, - 0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, - 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF -}; - -static png_byte twobppswaptable[256] = { - 0x00, 0x40, 0x80, 0xC0, 0x10, 0x50, 0x90, 0xD0, - 0x20, 0x60, 0xA0, 0xE0, 0x30, 0x70, 0xB0, 0xF0, - 0x04, 0x44, 0x84, 0xC4, 0x14, 0x54, 0x94, 0xD4, - 0x24, 0x64, 0xA4, 0xE4, 0x34, 0x74, 0xB4, 0xF4, - 0x08, 0x48, 0x88, 0xC8, 0x18, 0x58, 0x98, 0xD8, - 0x28, 0x68, 0xA8, 0xE8, 0x38, 0x78, 0xB8, 0xF8, - 0x0C, 0x4C, 0x8C, 0xCC, 0x1C, 0x5C, 0x9C, 0xDC, - 0x2C, 0x6C, 0xAC, 0xEC, 0x3C, 0x7C, 0xBC, 0xFC, - 0x01, 0x41, 0x81, 0xC1, 0x11, 0x51, 0x91, 0xD1, - 0x21, 0x61, 0xA1, 0xE1, 0x31, 0x71, 0xB1, 0xF1, - 0x05, 0x45, 0x85, 0xC5, 0x15, 0x55, 0x95, 0xD5, - 0x25, 0x65, 0xA5, 0xE5, 0x35, 0x75, 0xB5, 0xF5, - 0x09, 0x49, 0x89, 0xC9, 0x19, 0x59, 0x99, 0xD9, - 0x29, 0x69, 0xA9, 0xE9, 0x39, 0x79, 0xB9, 0xF9, - 0x0D, 0x4D, 0x8D, 0xCD, 0x1D, 0x5D, 0x9D, 0xDD, - 0x2D, 0x6D, 0xAD, 0xED, 0x3D, 0x7D, 0xBD, 0xFD, - 0x02, 0x42, 0x82, 0xC2, 0x12, 0x52, 0x92, 0xD2, - 0x22, 0x62, 0xA2, 0xE2, 0x32, 0x72, 0xB2, 0xF2, - 0x06, 0x46, 0x86, 0xC6, 0x16, 0x56, 0x96, 0xD6, - 0x26, 0x66, 0xA6, 0xE6, 0x36, 0x76, 0xB6, 0xF6, - 0x0A, 0x4A, 0x8A, 0xCA, 0x1A, 0x5A, 0x9A, 0xDA, - 0x2A, 0x6A, 0xAA, 0xEA, 0x3A, 0x7A, 0xBA, 0xFA, - 0x0E, 0x4E, 0x8E, 0xCE, 0x1E, 0x5E, 0x9E, 0xDE, - 0x2E, 0x6E, 0xAE, 0xEE, 0x3E, 0x7E, 0xBE, 0xFE, - 0x03, 0x43, 0x83, 0xC3, 0x13, 0x53, 0x93, 0xD3, - 0x23, 0x63, 0xA3, 0xE3, 0x33, 0x73, 0xB3, 0xF3, - 0x07, 0x47, 0x87, 0xC7, 0x17, 0x57, 0x97, 0xD7, - 0x27, 0x67, 0xA7, 0xE7, 0x37, 0x77, 0xB7, 0xF7, - 0x0B, 0x4B, 0x8B, 0xCB, 0x1B, 0x5B, 0x9B, 0xDB, - 0x2B, 0x6B, 0xAB, 0xEB, 0x3B, 0x7B, 0xBB, 0xFB, - 0x0F, 0x4F, 0x8F, 0xCF, 0x1F, 0x5F, 0x9F, 0xDF, - 0x2F, 0x6F, 0xAF, 0xEF, 0x3F, 0x7F, 0xBF, 0xFF -}; - -static png_byte fourbppswaptable[256] = { - 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, - 0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0, - 0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71, - 0x81, 0x91, 0xA1, 0xB1, 0xC1, 0xD1, 0xE1, 0xF1, - 0x02, 0x12, 0x22, 0x32, 0x42, 0x52, 0x62, 0x72, - 0x82, 0x92, 0xA2, 0xB2, 0xC2, 0xD2, 0xE2, 0xF2, - 0x03, 0x13, 0x23, 0x33, 0x43, 0x53, 0x63, 0x73, - 0x83, 0x93, 0xA3, 0xB3, 0xC3, 0xD3, 0xE3, 0xF3, - 0x04, 0x14, 0x24, 0x34, 0x44, 0x54, 0x64, 0x74, - 0x84, 0x94, 0xA4, 0xB4, 0xC4, 0xD4, 0xE4, 0xF4, - 0x05, 0x15, 0x25, 0x35, 0x45, 0x55, 0x65, 0x75, - 0x85, 0x95, 0xA5, 0xB5, 0xC5, 0xD5, 0xE5, 0xF5, - 0x06, 0x16, 0x26, 0x36, 0x46, 0x56, 0x66, 0x76, - 0x86, 0x96, 0xA6, 0xB6, 0xC6, 0xD6, 0xE6, 0xF6, - 0x07, 0x17, 0x27, 0x37, 0x47, 0x57, 0x67, 0x77, - 0x87, 0x97, 0xA7, 0xB7, 0xC7, 0xD7, 0xE7, 0xF7, - 0x08, 0x18, 0x28, 0x38, 0x48, 0x58, 0x68, 0x78, - 0x88, 0x98, 0xA8, 0xB8, 0xC8, 0xD8, 0xE8, 0xF8, - 0x09, 0x19, 0x29, 0x39, 0x49, 0x59, 0x69, 0x79, - 0x89, 0x99, 0xA9, 0xB9, 0xC9, 0xD9, 0xE9, 0xF9, - 0x0A, 0x1A, 0x2A, 0x3A, 0x4A, 0x5A, 0x6A, 0x7A, - 0x8A, 0x9A, 0xAA, 0xBA, 0xCA, 0xDA, 0xEA, 0xFA, - 0x0B, 0x1B, 0x2B, 0x3B, 0x4B, 0x5B, 0x6B, 0x7B, - 0x8B, 0x9B, 0xAB, 0xBB, 0xCB, 0xDB, 0xEB, 0xFB, - 0x0C, 0x1C, 0x2C, 0x3C, 0x4C, 0x5C, 0x6C, 0x7C, - 0x8C, 0x9C, 0xAC, 0xBC, 0xCC, 0xDC, 0xEC, 0xFC, - 0x0D, 0x1D, 0x2D, 0x3D, 0x4D, 0x5D, 0x6D, 0x7D, - 0x8D, 0x9D, 0xAD, 0xBD, 0xCD, 0xDD, 0xED, 0xFD, - 0x0E, 0x1E, 0x2E, 0x3E, 0x4E, 0x5E, 0x6E, 0x7E, - 0x8E, 0x9E, 0xAE, 0xBE, 0xCE, 0xDE, 0xEE, 0xFE, - 0x0F, 0x1F, 0x2F, 0x3F, 0x4F, 0x5F, 0x6F, 0x7F, - 0x8F, 0x9F, 0xAF, 0xBF, 0xCF, 0xDF, 0xEF, 0xFF -}; - -/* swaps pixel packing order within bytes */ -void /* PRIVATE */ -png_do_packswap(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_packswap\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - row_info->bit_depth < 8) - { - png_bytep rp, end, table; - - end = row + row_info->rowbytes; - - if (row_info->bit_depth == 1) - table = onebppswaptable; - else if (row_info->bit_depth == 2) - table = twobppswaptable; - else if (row_info->bit_depth == 4) - table = fourbppswaptable; - else - return; - - for (rp = row; rp < end; rp++) - *rp = table[*rp]; - } -} -#endif /* PNG_READ_PACKSWAP_SUPPORTED or PNG_WRITE_PACKSWAP_SUPPORTED */ - -#if defined(PNG_WRITE_FILLER_SUPPORTED) || \ - defined(PNG_READ_STRIP_ALPHA_SUPPORTED) -/* remove filler or alpha byte(s) */ -void /* PRIVATE */ -png_do_strip_filler(png_row_infop row_info, png_bytep row, png_uint_32 flags) -{ - png_debug(1, "in png_do_strip_filler\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { -/* - if (row_info->color_type == PNG_COLOR_TYPE_RGB || - row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) -*/ - png_bytep sp=row; - png_bytep dp=row; - png_uint_32 row_width=row_info->width; - png_uint_32 i; - - if (row_info->channels == 4) - { - if (row_info->bit_depth == 8) - { - /* This converts from RGBX or RGBA to RGB */ - if (flags & PNG_FLAG_FILLER_AFTER) - { - dp+=3; sp+=4; - for (i = 1; i < row_width; i++) - { - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - sp++; - } - } - /* This converts from XRGB or ARGB to RGB */ - else - { - for (i = 0; i < row_width; i++) - { - sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - } - } - row_info->pixel_depth = 24; - row_info->rowbytes = row_width * 3; - } - else /* if (row_info->bit_depth == 16) */ - { - if (flags & PNG_FLAG_FILLER_AFTER) - { - /* This converts from RRGGBBXX or RRGGBBAA to RRGGBB */ - sp += 8; dp += 6; - for (i = 1; i < row_width; i++) - { - /* This could be (although png_memcpy is probably slower): - png_memcpy(dp, sp, 6); - sp += 8; - dp += 6; - */ - - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - sp += 2; - } - } - else - { - /* This converts from XXRRGGBB or AARRGGBB to RRGGBB */ - for (i = 0; i < row_width; i++) - { - /* This could be (although png_memcpy is probably slower): - png_memcpy(dp, sp, 6); - sp += 8; - dp += 6; - */ - - sp+=2; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - } - } - row_info->pixel_depth = 48; - row_info->rowbytes = row_width * 6; - } - row_info->channels = 3; - row_info->color_type &= ~PNG_COLOR_MASK_ALPHA; - } -/* - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY || - row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) -*/ - else if (row_info->channels == 2) - { - if (row_info->bit_depth == 8) - { - /* This converts from GX or GA to G */ - if (flags & PNG_FLAG_FILLER_AFTER) - { - for (i = 0; i < row_width; i++) - { - *dp++ = *sp++; - sp++; - } - } - /* This converts from XG or AG to G */ - else - { - for (i = 0; i < row_width; i++) - { - sp++; - *dp++ = *sp++; - } - } - row_info->pixel_depth = 8; - row_info->rowbytes = row_width; - } - else /* if (row_info->bit_depth == 16) */ - { - if (flags & PNG_FLAG_FILLER_AFTER) - { - /* This converts from GGXX or GGAA to GG */ - sp += 4; dp += 2; - for (i = 1; i < row_width; i++) - { - *dp++ = *sp++; - *dp++ = *sp++; - sp += 2; - } - } - else - { - /* This converts from XXGG or AAGG to GG */ - for (i = 0; i < row_width; i++) - { - sp += 2; - *dp++ = *sp++; - *dp++ = *sp++; - } - } - row_info->pixel_depth = 16; - row_info->rowbytes = row_width * 2; - } - row_info->channels = 1; - row_info->color_type &= ~PNG_COLOR_MASK_ALPHA; - } - } -} -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -/* swaps red and blue bytes within a pixel */ -void /* PRIVATE */ -png_do_bgr(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_bgr\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - (row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - png_uint_32 row_width = row_info->width; - if (row_info->bit_depth == 8) - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - { - png_bytep rp; - png_uint_32 i; - - for (i = 0, rp = row; i < row_width; i++, rp += 3) - { - png_byte save = *rp; - *rp = *(rp + 2); - *(rp + 2) = save; - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - png_bytep rp; - png_uint_32 i; - - for (i = 0, rp = row; i < row_width; i++, rp += 4) - { - png_byte save = *rp; - *rp = *(rp + 2); - *(rp + 2) = save; - } - } - } - else if (row_info->bit_depth == 16) - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - { - png_bytep rp; - png_uint_32 i; - - for (i = 0, rp = row; i < row_width; i++, rp += 6) - { - png_byte save = *rp; - *rp = *(rp + 4); - *(rp + 4) = save; - save = *(rp + 1); - *(rp + 1) = *(rp + 5); - *(rp + 5) = save; - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - png_bytep rp; - png_uint_32 i; - - for (i = 0, rp = row; i < row_width; i++, rp += 8) - { - png_byte save = *rp; - *rp = *(rp + 4); - *(rp + 4) = save; - save = *(rp + 1); - *(rp + 1) = *(rp + 5); - *(rp + 5) = save; - } - } - } - } -} -#endif /* PNG_READ_BGR_SUPPORTED or PNG_WRITE_BGR_SUPPORTED */ - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -void PNGAPI -png_set_user_transform_info(png_structp png_ptr, png_voidp - user_transform_ptr, int user_transform_depth, int user_transform_channels) -{ - png_debug(1, "in png_set_user_transform_info\n"); -#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) - png_ptr->user_transform_ptr = user_transform_ptr; - png_ptr->user_transform_depth = (png_byte)user_transform_depth; - png_ptr->user_transform_channels = (png_byte)user_transform_channels; -#else - if(user_transform_ptr || user_transform_depth || user_transform_channels) - png_warning(png_ptr, - "This version of libpng does not support user transform info"); -#endif -} -#endif - -/* This function returns a pointer to the user_transform_ptr associated with - * the user transform functions. The application should free any memory - * associated with this pointer before png_write_destroy and png_read_destroy - * are called. - */ -png_voidp PNGAPI -png_get_user_transform_ptr(png_structp png_ptr) -{ -#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) - return ((png_voidp)png_ptr->user_transform_ptr); -#else - if(png_ptr) - return (NULL); - return (NULL); -#endif -} diff --git a/collects/plot/src/all/pngvcrd.c b/collects/plot/src/all/pngvcrd.c deleted file mode 100644 index 4f513eb4d9..0000000000 --- a/collects/plot/src/all/pngvcrd.c +++ /dev/null @@ -1,3845 +0,0 @@ -/* pngvcrd.c - mixed C/assembler version of utilities to read a PNG file - * - * For Intel x86 CPU and Microsoft Visual C++ compiler - * - * libpng version 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * Copyright (c) 1998, Intel Corporation - * - * Contributed by Nirav Chhatrapati, Intel Corporation, 1998 - * Interface to libpng contributed by Gilles Vollant, 1999 - * - * - * In png_do_read_interlace() in libpng versions 1.0.3a through 1.0.4d, - * a sign error in the post-MMX cleanup code for each pixel_depth resulted - * in bad pixels at the beginning of some rows of some images, and also - * (due to out-of-range memory reads and writes) caused heap corruption - * when compiled with MSVC 6.0. The error was fixed in version 1.0.4e. - * - * [png_read_filter_row_mmx_avg() bpp == 2 bugfix, GRR 20000916] - * - * [runtime MMX configuration, GRR 20010102] - * - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_USE_PNGVCRD) - -static int mmx_supported=2; - - -int PNGAPI -png_mmx_support(void) -{ - int mmx_supported_local = 0; - _asm { - push ebx //CPUID will trash these - push ecx - push edx - - pushfd //Save Eflag to stack - pop eax //Get Eflag from stack into eax - mov ecx, eax //Make another copy of Eflag in ecx - xor eax, 0x200000 //Toggle ID bit in Eflag [i.e. bit(21)] - push eax //Save modified Eflag back to stack - - popfd //Restored modified value back to Eflag reg - pushfd //Save Eflag to stack - pop eax //Get Eflag from stack - push ecx // save original Eflag to stack - popfd // restore original Eflag - xor eax, ecx //Compare the new Eflag with the original Eflag - jz NOT_SUPPORTED //If the same, CPUID instruction is not supported, - //skip following instructions and jump to - //NOT_SUPPORTED label - - xor eax, eax //Set eax to zero - - _asm _emit 0x0f //CPUID instruction (two bytes opcode) - _asm _emit 0xa2 - - cmp eax, 1 //make sure eax return non-zero value - jl NOT_SUPPORTED //If eax is zero, mmx not supported - - xor eax, eax //set eax to zero - inc eax //Now increment eax to 1. This instruction is - //faster than the instruction "mov eax, 1" - - _asm _emit 0x0f //CPUID instruction - _asm _emit 0xa2 - - and edx, 0x00800000 //mask out all bits but mmx bit(24) - cmp edx, 0 // 0 = mmx not supported - jz NOT_SUPPORTED // non-zero = Yes, mmx IS supported - - mov mmx_supported_local, 1 //set return value to 1 - -NOT_SUPPORTED: - mov eax, mmx_supported_local //move return value to eax - pop edx //CPUID trashed these - pop ecx - pop ebx - } - - //mmx_supported_local=0; // test code for force don't support MMX - //printf("MMX : %u (1=MMX supported)\n",mmx_supported_local); - - mmx_supported = mmx_supported_local; - return mmx_supported_local; -} - -/* Combines the row recently read in with the previous row. - This routine takes care of alpha and transparency if requested. - This routine also handles the two methods of progressive display - of interlaced images, depending on the mask value. - The mask value describes which pixels are to be combined with - the row. The pattern always repeats every 8 pixels, so just 8 - bits are needed. A one indicates the pixel is to be combined; a - zero indicates the pixel is to be skipped. This is in addition - to any alpha or transparency value associated with the pixel. If - you want all pixels to be combined, pass 0xff (255) in mask. */ - -/* Use this routine for x86 platform - uses faster MMX routine if machine - supports MMX */ - -void /* PRIVATE */ -png_combine_row(png_structp png_ptr, png_bytep row, int mask) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; -#endif - - png_debug(1,"in png_combine_row_asm\n"); - - if (mmx_supported == 2) { - /* this should have happened in png_init_mmx_flags() already */ - png_warning(png_ptr, "asm_flags may not have been initialized"); - png_mmx_support(); - } - - if (mask == 0xff) - { - png_memcpy(row, png_ptr->row_buf + 1, - (png_size_t)((png_ptr->width * png_ptr->row_info.pixel_depth + 7) >> 3)); - } - /* GRR: add "else if (mask == 0)" case? - * or does png_combine_row() not even get called in that case? */ - else - { - switch (png_ptr->row_info.pixel_depth) - { - case 1: - { - png_bytep sp; - png_bytep dp; - int s_inc, s_start, s_end; - int m; - int shift; - png_uint_32 i; - - sp = png_ptr->row_buf + 1; - dp = row; - m = 0x80; -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - { - s_start = 0; - s_end = 7; - s_inc = 1; - } - else -#endif - { - s_start = 7; - s_end = 0; - s_inc = -1; - } - - shift = s_start; - - for (i = 0; i < png_ptr->width; i++) - { - if (m & mask) - { - int value; - - value = (*sp >> shift) & 0x1; - *dp &= (png_byte)((0x7f7f >> (7 - shift)) & 0xff); - *dp |= (png_byte)(value << shift); - } - - if (shift == s_end) - { - shift = s_start; - sp++; - dp++; - } - else - shift += s_inc; - - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - - case 2: - { - png_bytep sp; - png_bytep dp; - int s_start, s_end, s_inc; - int m; - int shift; - png_uint_32 i; - int value; - - sp = png_ptr->row_buf + 1; - dp = row; - m = 0x80; -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - { - s_start = 0; - s_end = 6; - s_inc = 2; - } - else -#endif - { - s_start = 6; - s_end = 0; - s_inc = -2; - } - - shift = s_start; - - for (i = 0; i < png_ptr->width; i++) - { - if (m & mask) - { - value = (*sp >> shift) & 0x3; - *dp &= (png_byte)((0x3f3f >> (6 - shift)) & 0xff); - *dp |= (png_byte)(value << shift); - } - - if (shift == s_end) - { - shift = s_start; - sp++; - dp++; - } - else - shift += s_inc; - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - - case 4: - { - png_bytep sp; - png_bytep dp; - int s_start, s_end, s_inc; - int m; - int shift; - png_uint_32 i; - int value; - - sp = png_ptr->row_buf + 1; - dp = row; - m = 0x80; -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - { - s_start = 0; - s_end = 4; - s_inc = 4; - } - else -#endif - { - s_start = 4; - s_end = 0; - s_inc = -4; - } - shift = s_start; - - for (i = 0; i < png_ptr->width; i++) - { - if (m & mask) - { - value = (*sp >> shift) & 0xf; - *dp &= (png_byte)((0xf0f >> (4 - shift)) & 0xff); - *dp |= (png_byte)(value << shift); - } - - if (shift == s_end) - { - shift = s_start; - sp++; - dp++; - } - else - shift += s_inc; - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - - case 8: - { - png_bytep srcptr; - png_bytep dstptr; - png_uint_32 len; - int m; - int diff, unmask; - - __int64 mask0=0x0102040810204080; - - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW) - /* && mmx_supported */ ) - { - srcptr = png_ptr->row_buf + 1; - dstptr = row; - m = 0x80; - unmask = ~mask; - len = png_ptr->width &~7; //reduce to multiple of 8 - diff = png_ptr->width & 7; //amount lost - - _asm - { - movd mm7, unmask //load bit pattern - psubb mm6,mm6 //zero mm6 - punpcklbw mm7,mm7 - punpcklwd mm7,mm7 - punpckldq mm7,mm7 //fill register with 8 masks - - movq mm0,mask0 - - pand mm0,mm7 //nonzero if keep byte - pcmpeqb mm0,mm6 //zeros->1s, v versa - - mov ecx,len //load length of line (pixels) - mov esi,srcptr //load source - mov ebx,dstptr //load dest - cmp ecx,0 //lcr - je mainloop8end - -mainloop8: - movq mm4,[esi] - pand mm4,mm0 - movq mm6,mm0 - pandn mm6,[ebx] - por mm4,mm6 - movq [ebx],mm4 - - add esi,8 //inc by 8 bytes processed - add ebx,8 - sub ecx,8 //dec by 8 pixels processed - - ja mainloop8 -mainloop8end: - - mov ecx,diff - cmp ecx,0 - jz end8 - - mov edx,mask - sal edx,24 //make low byte the high byte - -secondloop8: - sal edx,1 //move high bit to CF - jnc skip8 //if CF = 0 - mov al,[esi] - mov [ebx],al -skip8: - inc esi - inc ebx - - dec ecx - jnz secondloop8 -end8: - emms - } - } - else /* mmx not supported - use modified C routine */ - { - register unsigned int incr1, initial_val, final_val; - png_size_t pixel_bytes; - png_uint_32 i; - register int disp = png_pass_inc[png_ptr->pass]; - int offset_table[7] = {0, 4, 0, 2, 0, 1, 0}; - - pixel_bytes = (png_ptr->row_info.pixel_depth >> 3); - srcptr = png_ptr->row_buf + 1 + offset_table[png_ptr->pass]* - pixel_bytes; - dstptr = row + offset_table[png_ptr->pass]*pixel_bytes; - initial_val = offset_table[png_ptr->pass]*pixel_bytes; - final_val = png_ptr->width*pixel_bytes; - incr1 = (disp)*pixel_bytes; - for (i = initial_val; i < final_val; i += incr1) - { - png_memcpy(dstptr, srcptr, pixel_bytes); - srcptr += incr1; - dstptr += incr1; - } - } /* end of else */ - - break; - } // end 8 bpp - - case 16: - { - png_bytep srcptr; - png_bytep dstptr; - png_uint_32 len; - int unmask, diff; - __int64 mask1=0x0101020204040808, - mask0=0x1010202040408080; - - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW) - /* && mmx_supported */ ) - { - srcptr = png_ptr->row_buf + 1; - dstptr = row; - - unmask = ~mask; - len = (png_ptr->width)&~7; - diff = (png_ptr->width)&7; - _asm - { - movd mm7, unmask //load bit pattern - psubb mm6,mm6 //zero mm6 - punpcklbw mm7,mm7 - punpcklwd mm7,mm7 - punpckldq mm7,mm7 //fill register with 8 masks - - movq mm0,mask0 - movq mm1,mask1 - - pand mm0,mm7 - pand mm1,mm7 - - pcmpeqb mm0,mm6 - pcmpeqb mm1,mm6 - - mov ecx,len //load length of line - mov esi,srcptr //load source - mov ebx,dstptr //load dest - cmp ecx,0 //lcr - jz mainloop16end - -mainloop16: - movq mm4,[esi] - pand mm4,mm0 - movq mm6,mm0 - movq mm7,[ebx] - pandn mm6,mm7 - por mm4,mm6 - movq [ebx],mm4 - - movq mm5,[esi+8] - pand mm5,mm1 - movq mm7,mm1 - movq mm6,[ebx+8] - pandn mm7,mm6 - por mm5,mm7 - movq [ebx+8],mm5 - - add esi,16 //inc by 16 bytes processed - add ebx,16 - sub ecx,8 //dec by 8 pixels processed - - ja mainloop16 - -mainloop16end: - mov ecx,diff - cmp ecx,0 - jz end16 - - mov edx,mask - sal edx,24 //make low byte the high byte -secondloop16: - sal edx,1 //move high bit to CF - jnc skip16 //if CF = 0 - mov ax,[esi] - mov [ebx],ax -skip16: - add esi,2 - add ebx,2 - - dec ecx - jnz secondloop16 -end16: - emms - } - } - else /* mmx not supported - use modified C routine */ - { - register unsigned int incr1, initial_val, final_val; - png_size_t pixel_bytes; - png_uint_32 i; - register int disp = png_pass_inc[png_ptr->pass]; - int offset_table[7] = {0, 4, 0, 2, 0, 1, 0}; - - pixel_bytes = (png_ptr->row_info.pixel_depth >> 3); - srcptr = png_ptr->row_buf + 1 + offset_table[png_ptr->pass]* - pixel_bytes; - dstptr = row + offset_table[png_ptr->pass]*pixel_bytes; - initial_val = offset_table[png_ptr->pass]*pixel_bytes; - final_val = png_ptr->width*pixel_bytes; - incr1 = (disp)*pixel_bytes; - for (i = initial_val; i < final_val; i += incr1) - { - png_memcpy(dstptr, srcptr, pixel_bytes); - srcptr += incr1; - dstptr += incr1; - } - } /* end of else */ - - break; - } // end 16 bpp - - case 24: - { - png_bytep srcptr; - png_bytep dstptr; - png_uint_32 len; - int unmask, diff; - - __int64 mask2=0x0101010202020404, //24bpp - mask1=0x0408080810101020, - mask0=0x2020404040808080; - - srcptr = png_ptr->row_buf + 1; - dstptr = row; - - unmask = ~mask; - len = (png_ptr->width)&~7; - diff = (png_ptr->width)&7; - - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW) - /* && mmx_supported */ ) - { - _asm - { - movd mm7, unmask //load bit pattern - psubb mm6,mm6 //zero mm6 - punpcklbw mm7,mm7 - punpcklwd mm7,mm7 - punpckldq mm7,mm7 //fill register with 8 masks - - movq mm0,mask0 - movq mm1,mask1 - movq mm2,mask2 - - pand mm0,mm7 - pand mm1,mm7 - pand mm2,mm7 - - pcmpeqb mm0,mm6 - pcmpeqb mm1,mm6 - pcmpeqb mm2,mm6 - - mov ecx,len //load length of line - mov esi,srcptr //load source - mov ebx,dstptr //load dest - cmp ecx,0 - jz mainloop24end - -mainloop24: - movq mm4,[esi] - pand mm4,mm0 - movq mm6,mm0 - movq mm7,[ebx] - pandn mm6,mm7 - por mm4,mm6 - movq [ebx],mm4 - - - movq mm5,[esi+8] - pand mm5,mm1 - movq mm7,mm1 - movq mm6,[ebx+8] - pandn mm7,mm6 - por mm5,mm7 - movq [ebx+8],mm5 - - movq mm6,[esi+16] - pand mm6,mm2 - movq mm4,mm2 - movq mm7,[ebx+16] - pandn mm4,mm7 - por mm6,mm4 - movq [ebx+16],mm6 - - add esi,24 //inc by 24 bytes processed - add ebx,24 - sub ecx,8 //dec by 8 pixels processed - - ja mainloop24 - -mainloop24end: - mov ecx,diff - cmp ecx,0 - jz end24 - - mov edx,mask - sal edx,24 //make low byte the high byte -secondloop24: - sal edx,1 //move high bit to CF - jnc skip24 //if CF = 0 - mov ax,[esi] - mov [ebx],ax - xor eax,eax - mov al,[esi+2] - mov [ebx+2],al -skip24: - add esi,3 - add ebx,3 - - dec ecx - jnz secondloop24 - -end24: - emms - } - } - else /* mmx not supported - use modified C routine */ - { - register unsigned int incr1, initial_val, final_val; - png_size_t pixel_bytes; - png_uint_32 i; - register int disp = png_pass_inc[png_ptr->pass]; - int offset_table[7] = {0, 4, 0, 2, 0, 1, 0}; - - pixel_bytes = (png_ptr->row_info.pixel_depth >> 3); - srcptr = png_ptr->row_buf + 1 + offset_table[png_ptr->pass]* - pixel_bytes; - dstptr = row + offset_table[png_ptr->pass]*pixel_bytes; - initial_val = offset_table[png_ptr->pass]*pixel_bytes; - final_val = png_ptr->width*pixel_bytes; - incr1 = (disp)*pixel_bytes; - for (i = initial_val; i < final_val; i += incr1) - { - png_memcpy(dstptr, srcptr, pixel_bytes); - srcptr += incr1; - dstptr += incr1; - } - } /* end of else */ - - break; - } // end 24 bpp - - case 32: - { - png_bytep srcptr; - png_bytep dstptr; - png_uint_32 len; - int unmask, diff; - - __int64 mask3=0x0101010102020202, //32bpp - mask2=0x0404040408080808, - mask1=0x1010101020202020, - mask0=0x4040404080808080; - - srcptr = png_ptr->row_buf + 1; - dstptr = row; - - unmask = ~mask; - len = (png_ptr->width)&~7; - diff = (png_ptr->width)&7; - - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW) - /* && mmx_supported */ ) - { - _asm - { - movd mm7, unmask //load bit pattern - psubb mm6,mm6 //zero mm6 - punpcklbw mm7,mm7 - punpcklwd mm7,mm7 - punpckldq mm7,mm7 //fill register with 8 masks - - movq mm0,mask0 - movq mm1,mask1 - movq mm2,mask2 - movq mm3,mask3 - - pand mm0,mm7 - pand mm1,mm7 - pand mm2,mm7 - pand mm3,mm7 - - pcmpeqb mm0,mm6 - pcmpeqb mm1,mm6 - pcmpeqb mm2,mm6 - pcmpeqb mm3,mm6 - - mov ecx,len //load length of line - mov esi,srcptr //load source - mov ebx,dstptr //load dest - - cmp ecx,0 //lcr - jz mainloop32end - -mainloop32: - movq mm4,[esi] - pand mm4,mm0 - movq mm6,mm0 - movq mm7,[ebx] - pandn mm6,mm7 - por mm4,mm6 - movq [ebx],mm4 - - movq mm5,[esi+8] - pand mm5,mm1 - movq mm7,mm1 - movq mm6,[ebx+8] - pandn mm7,mm6 - por mm5,mm7 - movq [ebx+8],mm5 - - movq mm6,[esi+16] - pand mm6,mm2 - movq mm4,mm2 - movq mm7,[ebx+16] - pandn mm4,mm7 - por mm6,mm4 - movq [ebx+16],mm6 - - movq mm7,[esi+24] - pand mm7,mm3 - movq mm5,mm3 - movq mm4,[ebx+24] - pandn mm5,mm4 - por mm7,mm5 - movq [ebx+24],mm7 - - add esi,32 //inc by 32 bytes processed - add ebx,32 - sub ecx,8 //dec by 8 pixels processed - - ja mainloop32 - -mainloop32end: - mov ecx,diff - cmp ecx,0 - jz end32 - - mov edx,mask - sal edx,24 //make low byte the high byte -secondloop32: - sal edx,1 //move high bit to CF - jnc skip32 //if CF = 0 - mov eax,[esi] - mov [ebx],eax -skip32: - add esi,4 - add ebx,4 - - dec ecx - jnz secondloop32 - -end32: - emms - } - } - else /* mmx _not supported - Use modified C routine */ - { - register unsigned int incr1, initial_val, final_val; - png_size_t pixel_bytes; - png_uint_32 i; - register int disp = png_pass_inc[png_ptr->pass]; - int offset_table[7] = {0, 4, 0, 2, 0, 1, 0}; - - pixel_bytes = (png_ptr->row_info.pixel_depth >> 3); - srcptr = png_ptr->row_buf + 1 + offset_table[png_ptr->pass]* - pixel_bytes; - dstptr = row + offset_table[png_ptr->pass]*pixel_bytes; - initial_val = offset_table[png_ptr->pass]*pixel_bytes; - final_val = png_ptr->width*pixel_bytes; - incr1 = (disp)*pixel_bytes; - for (i = initial_val; i < final_val; i += incr1) - { - png_memcpy(dstptr, srcptr, pixel_bytes); - srcptr += incr1; - dstptr += incr1; - } - } /* end of else */ - - break; - } // end 32 bpp - - case 48: - { - png_bytep srcptr; - png_bytep dstptr; - png_uint_32 len; - int unmask, diff; - - __int64 mask5=0x0101010101010202, - mask4=0x0202020204040404, - mask3=0x0404080808080808, - mask2=0x1010101010102020, - mask1=0x2020202040404040, - mask0=0x4040808080808080; - - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW) - /* && mmx_supported */ ) - { - srcptr = png_ptr->row_buf + 1; - dstptr = row; - - unmask = ~mask; - len = (png_ptr->width)&~7; - diff = (png_ptr->width)&7; - _asm - { - movd mm7, unmask //load bit pattern - psubb mm6,mm6 //zero mm6 - punpcklbw mm7,mm7 - punpcklwd mm7,mm7 - punpckldq mm7,mm7 //fill register with 8 masks - - movq mm0,mask0 - movq mm1,mask1 - movq mm2,mask2 - movq mm3,mask3 - movq mm4,mask4 - movq mm5,mask5 - - pand mm0,mm7 - pand mm1,mm7 - pand mm2,mm7 - pand mm3,mm7 - pand mm4,mm7 - pand mm5,mm7 - - pcmpeqb mm0,mm6 - pcmpeqb mm1,mm6 - pcmpeqb mm2,mm6 - pcmpeqb mm3,mm6 - pcmpeqb mm4,mm6 - pcmpeqb mm5,mm6 - - mov ecx,len //load length of line - mov esi,srcptr //load source - mov ebx,dstptr //load dest - - cmp ecx,0 - jz mainloop48end - -mainloop48: - movq mm7,[esi] - pand mm7,mm0 - movq mm6,mm0 - pandn mm6,[ebx] - por mm7,mm6 - movq [ebx],mm7 - - movq mm6,[esi+8] - pand mm6,mm1 - movq mm7,mm1 - pandn mm7,[ebx+8] - por mm6,mm7 - movq [ebx+8],mm6 - - movq mm6,[esi+16] - pand mm6,mm2 - movq mm7,mm2 - pandn mm7,[ebx+16] - por mm6,mm7 - movq [ebx+16],mm6 - - movq mm7,[esi+24] - pand mm7,mm3 - movq mm6,mm3 - pandn mm6,[ebx+24] - por mm7,mm6 - movq [ebx+24],mm7 - - movq mm6,[esi+32] - pand mm6,mm4 - movq mm7,mm4 - pandn mm7,[ebx+32] - por mm6,mm7 - movq [ebx+32],mm6 - - movq mm7,[esi+40] - pand mm7,mm5 - movq mm6,mm5 - pandn mm6,[ebx+40] - por mm7,mm6 - movq [ebx+40],mm7 - - add esi,48 //inc by 32 bytes processed - add ebx,48 - sub ecx,8 //dec by 8 pixels processed - - ja mainloop48 -mainloop48end: - - mov ecx,diff - cmp ecx,0 - jz end48 - - mov edx,mask - sal edx,24 //make low byte the high byte - -secondloop48: - sal edx,1 //move high bit to CF - jnc skip48 //if CF = 0 - mov eax,[esi] - mov [ebx],eax -skip48: - add esi,4 - add ebx,4 - - dec ecx - jnz secondloop48 - -end48: - emms - } - } - else /* mmx _not supported - Use modified C routine */ - { - register unsigned int incr1, initial_val, final_val; - png_size_t pixel_bytes; - png_uint_32 i; - register int disp = png_pass_inc[png_ptr->pass]; - int offset_table[7] = {0, 4, 0, 2, 0, 1, 0}; - - pixel_bytes = (png_ptr->row_info.pixel_depth >> 3); - srcptr = png_ptr->row_buf + 1 + offset_table[png_ptr->pass]* - pixel_bytes; - dstptr = row + offset_table[png_ptr->pass]*pixel_bytes; - initial_val = offset_table[png_ptr->pass]*pixel_bytes; - final_val = png_ptr->width*pixel_bytes; - incr1 = (disp)*pixel_bytes; - for (i = initial_val; i < final_val; i += incr1) - { - png_memcpy(dstptr, srcptr, pixel_bytes); - srcptr += incr1; - dstptr += incr1; - } - } /* end of else */ - - break; - } // end 48 bpp - - default: - { - png_bytep sptr; - png_bytep dp; - png_size_t pixel_bytes; - int offset_table[7] = {0, 4, 0, 2, 0, 1, 0}; - unsigned int i; - register int disp = png_pass_inc[png_ptr->pass]; // get the offset - register unsigned int incr1, initial_val, final_val; - - pixel_bytes = (png_ptr->row_info.pixel_depth >> 3); - sptr = png_ptr->row_buf + 1 + offset_table[png_ptr->pass]* - pixel_bytes; - dp = row + offset_table[png_ptr->pass]*pixel_bytes; - initial_val = offset_table[png_ptr->pass]*pixel_bytes; - final_val = png_ptr->width*pixel_bytes; - incr1 = (disp)*pixel_bytes; - for (i = initial_val; i < final_val; i += incr1) - { - png_memcpy(dp, sptr, pixel_bytes); - sptr += incr1; - dp += incr1; - } - break; - } - } /* end switch (png_ptr->row_info.pixel_depth) */ - } /* end if (non-trivial mask) */ - -} /* end png_combine_row() */ - - -#if defined(PNG_READ_INTERLACING_SUPPORTED) - -void /* PRIVATE */ -png_do_read_interlace(png_structp png_ptr) -{ - png_row_infop row_info = &(png_ptr->row_info); - png_bytep row = png_ptr->row_buf + 1; - int pass = png_ptr->pass; - png_uint_32 transformations = png_ptr->transformations; -#ifdef PNG_USE_LOCAL_ARRAYS - const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; -#endif - - png_debug(1,"in png_do_read_interlace\n"); - - if (mmx_supported == 2) { - /* this should have happened in png_init_mmx_flags() already */ - png_warning(png_ptr, "asm_flags may not have been initialized"); - png_mmx_support(); - } - - if (row != NULL && row_info != NULL) - { - png_uint_32 final_width; - - final_width = row_info->width * png_pass_inc[pass]; - - switch (row_info->pixel_depth) - { - case 1: - { - png_bytep sp, dp; - int sshift, dshift; - int s_start, s_end, s_inc; - png_byte v; - png_uint_32 i; - int j; - - sp = row + (png_size_t)((row_info->width - 1) >> 3); - dp = row + (png_size_t)((final_width - 1) >> 3); -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (transformations & PNG_PACKSWAP) - { - sshift = (int)((row_info->width + 7) & 7); - dshift = (int)((final_width + 7) & 7); - s_start = 7; - s_end = 0; - s_inc = -1; - } - else -#endif - { - sshift = 7 - (int)((row_info->width + 7) & 7); - dshift = 7 - (int)((final_width + 7) & 7); - s_start = 0; - s_end = 7; - s_inc = 1; - } - - for (i = row_info->width; i; i--) - { - v = (png_byte)((*sp >> sshift) & 0x1); - for (j = 0; j < png_pass_inc[pass]; j++) - { - *dp &= (png_byte)((0x7f7f >> (7 - dshift)) & 0xff); - *dp |= (png_byte)(v << dshift); - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - else - dshift += s_inc; - } - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - else - sshift += s_inc; - } - break; - } - - case 2: - { - png_bytep sp, dp; - int sshift, dshift; - int s_start, s_end, s_inc; - png_uint_32 i; - - sp = row + (png_size_t)((row_info->width - 1) >> 2); - dp = row + (png_size_t)((final_width - 1) >> 2); -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (transformations & PNG_PACKSWAP) - { - sshift = (png_size_t)(((row_info->width + 3) & 3) << 1); - dshift = (png_size_t)(((final_width + 3) & 3) << 1); - s_start = 6; - s_end = 0; - s_inc = -2; - } - else -#endif - { - sshift = (png_size_t)((3 - ((row_info->width + 3) & 3)) << 1); - dshift = (png_size_t)((3 - ((final_width + 3) & 3)) << 1); - s_start = 0; - s_end = 6; - s_inc = 2; - } - - for (i = row_info->width; i; i--) - { - png_byte v; - int j; - - v = (png_byte)((*sp >> sshift) & 0x3); - for (j = 0; j < png_pass_inc[pass]; j++) - { - *dp &= (png_byte)((0x3f3f >> (6 - dshift)) & 0xff); - *dp |= (png_byte)(v << dshift); - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - else - dshift += s_inc; - } - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - else - sshift += s_inc; - } - break; - } - - case 4: - { - png_bytep sp, dp; - int sshift, dshift; - int s_start, s_end, s_inc; - png_uint_32 i; - - sp = row + (png_size_t)((row_info->width - 1) >> 1); - dp = row + (png_size_t)((final_width - 1) >> 1); -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (transformations & PNG_PACKSWAP) - { - sshift = (png_size_t)(((row_info->width + 1) & 1) << 2); - dshift = (png_size_t)(((final_width + 1) & 1) << 2); - s_start = 4; - s_end = 0; - s_inc = -4; - } - else -#endif - { - sshift = (png_size_t)((1 - ((row_info->width + 1) & 1)) << 2); - dshift = (png_size_t)((1 - ((final_width + 1) & 1)) << 2); - s_start = 0; - s_end = 4; - s_inc = 4; - } - - for (i = row_info->width; i; i--) - { - png_byte v; - int j; - - v = (png_byte)((*sp >> sshift) & 0xf); - for (j = 0; j < png_pass_inc[pass]; j++) - { - *dp &= (png_byte)((0xf0f >> (4 - dshift)) & 0xff); - *dp |= (png_byte)(v << dshift); - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - else - dshift += s_inc; - } - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - else - sshift += s_inc; - } - break; - } - - default: // This is the place where the routine is modified - { - __int64 const4 = 0x0000000000FFFFFF; - // __int64 const5 = 0x000000FFFFFF0000; // unused... - __int64 const6 = 0x00000000000000FF; - png_bytep sptr, dp; - png_uint_32 i; - png_size_t pixel_bytes; - int width = row_info->width; - - pixel_bytes = (row_info->pixel_depth >> 3); - - sptr = row + (width - 1) * pixel_bytes; - dp = row + (final_width - 1) * pixel_bytes; - // New code by Nirav Chhatrapati - Intel Corporation - // sign fix by GRR - // NOTE: there is NO MMX code for 48-bit and 64-bit images - - // use MMX routine if machine supports it - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_INTERLACE) - /* && mmx_supported */ ) - { - if (pixel_bytes == 3) - { - if (((pass == 0) || (pass == 1)) && width) - { - _asm - { - mov esi, sptr - mov edi, dp - mov ecx, width - sub edi, 21 // (png_pass_inc[pass] - 1)*pixel_bytes -loop_pass0: - movd mm0, [esi] ; X X X X X v2 v1 v0 - pand mm0, const4 ; 0 0 0 0 0 v2 v1 v0 - movq mm1, mm0 ; 0 0 0 0 0 v2 v1 v0 - psllq mm0, 16 ; 0 0 0 v2 v1 v0 0 0 - movq mm2, mm0 ; 0 0 0 v2 v1 v0 0 0 - psllq mm0, 24 ; v2 v1 v0 0 0 0 0 0 - psrlq mm1, 8 ; 0 0 0 0 0 0 v2 v1 - por mm0, mm2 ; v2 v1 v0 v2 v1 v0 0 0 - por mm0, mm1 ; v2 v1 v0 v2 v1 v0 v2 v1 - movq mm3, mm0 ; v2 v1 v0 v2 v1 v0 v2 v1 - psllq mm0, 16 ; v0 v2 v1 v0 v2 v1 0 0 - movq mm4, mm3 ; v2 v1 v0 v2 v1 v0 v2 v1 - punpckhdq mm3, mm0 ; v0 v2 v1 v0 v2 v1 v0 v2 - movq [edi+16] , mm4 - psrlq mm0, 32 ; 0 0 0 0 v0 v2 v1 v0 - movq [edi+8] , mm3 - punpckldq mm0, mm4 ; v1 v0 v2 v1 v0 v2 v1 v0 - sub esi, 3 - movq [edi], mm0 - sub edi, 24 - //sub esi, 3 - dec ecx - jnz loop_pass0 - EMMS - } - } - else if (((pass == 2) || (pass == 3)) && width) - { - _asm - { - mov esi, sptr - mov edi, dp - mov ecx, width - sub edi, 9 // (png_pass_inc[pass] - 1)*pixel_bytes -loop_pass2: - movd mm0, [esi] ; X X X X X v2 v1 v0 - pand mm0, const4 ; 0 0 0 0 0 v2 v1 v0 - movq mm1, mm0 ; 0 0 0 0 0 v2 v1 v0 - psllq mm0, 16 ; 0 0 0 v2 v1 v0 0 0 - movq mm2, mm0 ; 0 0 0 v2 v1 v0 0 0 - psllq mm0, 24 ; v2 v1 v0 0 0 0 0 0 - psrlq mm1, 8 ; 0 0 0 0 0 0 v2 v1 - por mm0, mm2 ; v2 v1 v0 v2 v1 v0 0 0 - por mm0, mm1 ; v2 v1 v0 v2 v1 v0 v2 v1 - movq [edi+4], mm0 ; move to memory - psrlq mm0, 16 ; 0 0 v2 v1 v0 v2 v1 v0 - movd [edi], mm0 ; move to memory - sub esi, 3 - sub edi, 12 - dec ecx - jnz loop_pass2 - EMMS - } - } - else if (width) /* && ((pass == 4) || (pass == 5)) */ - { - int width_mmx = ((width >> 1) << 1) - 8; - if (width_mmx < 0) - width_mmx = 0; - width -= width_mmx; // 8 or 9 pix, 24 or 27 bytes - if (width_mmx) - { - _asm - { - mov esi, sptr - mov edi, dp - mov ecx, width_mmx - sub esi, 3 - sub edi, 9 -loop_pass4: - movq mm0, [esi] ; X X v2 v1 v0 v5 v4 v3 - movq mm7, mm0 ; X X v2 v1 v0 v5 v4 v3 - movq mm6, mm0 ; X X v2 v1 v0 v5 v4 v3 - psllq mm0, 24 ; v1 v0 v5 v4 v3 0 0 0 - pand mm7, const4 ; 0 0 0 0 0 v5 v4 v3 - psrlq mm6, 24 ; 0 0 0 X X v2 v1 v0 - por mm0, mm7 ; v1 v0 v5 v4 v3 v5 v4 v3 - movq mm5, mm6 ; 0 0 0 X X v2 v1 v0 - psllq mm6, 8 ; 0 0 X X v2 v1 v0 0 - movq [edi], mm0 ; move quad to memory - psrlq mm5, 16 ; 0 0 0 0 0 X X v2 - pand mm5, const6 ; 0 0 0 0 0 0 0 v2 - por mm6, mm5 ; 0 0 X X v2 v1 v0 v2 - movd [edi+8], mm6 ; move double to memory - sub esi, 6 - sub edi, 12 - sub ecx, 2 - jnz loop_pass4 - EMMS - } - } - - sptr -= width_mmx*3; - dp -= width_mmx*6; - for (i = width; i; i--) - { - png_byte v[8]; - int j; - - png_memcpy(v, sptr, 3); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, 3); - dp -= 3; - } - sptr -= 3; - } - } - } /* end of pixel_bytes == 3 */ - - else if (pixel_bytes == 1) - { - if (((pass == 0) || (pass == 1)) && width) - { - int width_mmx = ((width >> 2) << 2); - width -= width_mmx; - if (width_mmx) - { - _asm - { - mov esi, sptr - mov edi, dp - mov ecx, width_mmx - sub edi, 31 - sub esi, 3 -loop1_pass0: - movd mm0, [esi] ; X X X X v0 v1 v2 v3 - movq mm1, mm0 ; X X X X v0 v1 v2 v3 - punpcklbw mm0, mm0 ; v0 v0 v1 v1 v2 v2 v3 v3 - movq mm2, mm0 ; v0 v0 v1 v1 v2 v2 v3 v3 - punpcklwd mm0, mm0 ; v2 v2 v2 v2 v3 v3 v3 v3 - movq mm3, mm0 ; v2 v2 v2 v2 v3 v3 v3 v3 - punpckldq mm0, mm0 ; v3 v3 v3 v3 v3 v3 v3 v3 - punpckhdq mm3, mm3 ; v2 v2 v2 v2 v2 v2 v2 v2 - movq [edi], mm0 ; move to memory v3 - punpckhwd mm2, mm2 ; v0 v0 v0 v0 v1 v1 v1 v1 - movq [edi+8], mm3 ; move to memory v2 - movq mm4, mm2 ; v0 v0 v0 v0 v1 v1 v1 v1 - punpckldq mm2, mm2 ; v1 v1 v1 v1 v1 v1 v1 v1 - punpckhdq mm4, mm4 ; v0 v0 v0 v0 v0 v0 v0 v0 - movq [edi+16], mm2 ; move to memory v1 - movq [edi+24], mm4 ; move to memory v0 - sub esi, 4 - sub edi, 32 - sub ecx, 4 - jnz loop1_pass0 - EMMS - } - } - - sptr -= width_mmx; - dp -= width_mmx*8; - for (i = width; i; i--) - { - int j; - - /* I simplified this part in version 1.0.4e - * here and in several other instances where - * pixel_bytes == 1 -- GR-P - * - * Original code: - * - * png_byte v[8]; - * png_memcpy(v, sptr, pixel_bytes); - * for (j = 0; j < png_pass_inc[pass]; j++) - * { - * png_memcpy(dp, v, pixel_bytes); - * dp -= pixel_bytes; - * } - * sptr -= pixel_bytes; - * - * Replacement code is in the next three lines: - */ - - for (j = 0; j < png_pass_inc[pass]; j++) - *dp-- = *sptr; - sptr--; - } - } - else if (((pass == 2) || (pass == 3)) && width) - { - int width_mmx = ((width >> 2) << 2); - width -= width_mmx; - if (width_mmx) - { - _asm - { - mov esi, sptr - mov edi, dp - mov ecx, width_mmx - sub edi, 15 - sub esi, 3 -loop1_pass2: - movd mm0, [esi] ; X X X X v0 v1 v2 v3 - punpcklbw mm0, mm0 ; v0 v0 v1 v1 v2 v2 v3 v3 - movq mm1, mm0 ; v0 v0 v1 v1 v2 v2 v3 v3 - punpcklwd mm0, mm0 ; v2 v2 v2 v2 v3 v3 v3 v3 - punpckhwd mm1, mm1 ; v0 v0 v0 v0 v1 v1 v1 v1 - movq [edi], mm0 ; move to memory v2 and v3 - sub esi, 4 - movq [edi+8], mm1 ; move to memory v1 and v0 - sub edi, 16 - sub ecx, 4 - jnz loop1_pass2 - EMMS - } - } - - sptr -= width_mmx; - dp -= width_mmx*4; - for (i = width; i; i--) - { - int j; - - for (j = 0; j < png_pass_inc[pass]; j++) - { - *dp-- = *sptr; - } - sptr --; - } - } - else if (width) /* && ((pass == 4) || (pass == 5))) */ - { - int width_mmx = ((width >> 3) << 3); - width -= width_mmx; - if (width_mmx) - { - _asm - { - mov esi, sptr - mov edi, dp - mov ecx, width_mmx - sub edi, 15 - sub esi, 7 -loop1_pass4: - movq mm0, [esi] ; v0 v1 v2 v3 v4 v5 v6 v7 - movq mm1, mm0 ; v0 v1 v2 v3 v4 v5 v6 v7 - punpcklbw mm0, mm0 ; v4 v4 v5 v5 v6 v6 v7 v7 - //movq mm1, mm0 ; v0 v0 v1 v1 v2 v2 v3 v3 - punpckhbw mm1, mm1 ;v0 v0 v1 v1 v2 v2 v3 v3 - movq [edi+8], mm1 ; move to memory v0 v1 v2 and v3 - sub esi, 8 - movq [edi], mm0 ; move to memory v4 v5 v6 and v7 - //sub esi, 4 - sub edi, 16 - sub ecx, 8 - jnz loop1_pass4 - EMMS - } - } - - sptr -= width_mmx; - dp -= width_mmx*2; - for (i = width; i; i--) - { - int j; - - for (j = 0; j < png_pass_inc[pass]; j++) - { - *dp-- = *sptr; - } - sptr --; - } - } - } /* end of pixel_bytes == 1 */ - - else if (pixel_bytes == 2) - { - if (((pass == 0) || (pass == 1)) && width) - { - int width_mmx = ((width >> 1) << 1); - width -= width_mmx; - if (width_mmx) - { - _asm - { - mov esi, sptr - mov edi, dp - mov ecx, width_mmx - sub esi, 2 - sub edi, 30 -loop2_pass0: - movd mm0, [esi] ; X X X X v1 v0 v3 v2 - punpcklwd mm0, mm0 ; v1 v0 v1 v0 v3 v2 v3 v2 - movq mm1, mm0 ; v1 v0 v1 v0 v3 v2 v3 v2 - punpckldq mm0, mm0 ; v3 v2 v3 v2 v3 v2 v3 v2 - punpckhdq mm1, mm1 ; v1 v0 v1 v0 v1 v0 v1 v0 - movq [edi], mm0 - movq [edi + 8], mm0 - movq [edi + 16], mm1 - movq [edi + 24], mm1 - sub esi, 4 - sub edi, 32 - sub ecx, 2 - jnz loop2_pass0 - EMMS - } - } - - sptr -= (width_mmx*2 - 2); // sign fixed - dp -= (width_mmx*16 - 2); // sign fixed - for (i = width; i; i--) - { - png_byte v[8]; - int j; - sptr -= 2; - png_memcpy(v, sptr, 2); - for (j = 0; j < png_pass_inc[pass]; j++) - { - dp -= 2; - png_memcpy(dp, v, 2); - } - } - } - else if (((pass == 2) || (pass == 3)) && width) - { - int width_mmx = ((width >> 1) << 1) ; - width -= width_mmx; - if (width_mmx) - { - _asm - { - mov esi, sptr - mov edi, dp - mov ecx, width_mmx - sub esi, 2 - sub edi, 14 -loop2_pass2: - movd mm0, [esi] ; X X X X v1 v0 v3 v2 - punpcklwd mm0, mm0 ; v1 v0 v1 v0 v3 v2 v3 v2 - movq mm1, mm0 ; v1 v0 v1 v0 v3 v2 v3 v2 - punpckldq mm0, mm0 ; v3 v2 v3 v2 v3 v2 v3 v2 - punpckhdq mm1, mm1 ; v1 v0 v1 v0 v1 v0 v1 v0 - movq [edi], mm0 - sub esi, 4 - movq [edi + 8], mm1 - //sub esi, 4 - sub edi, 16 - sub ecx, 2 - jnz loop2_pass2 - EMMS - } - } - - sptr -= (width_mmx*2 - 2); // sign fixed - dp -= (width_mmx*8 - 2); // sign fixed - for (i = width; i; i--) - { - png_byte v[8]; - int j; - sptr -= 2; - png_memcpy(v, sptr, 2); - for (j = 0; j < png_pass_inc[pass]; j++) - { - dp -= 2; - png_memcpy(dp, v, 2); - } - } - } - else if (width) // pass == 4 or 5 - { - int width_mmx = ((width >> 1) << 1) ; - width -= width_mmx; - if (width_mmx) - { - _asm - { - mov esi, sptr - mov edi, dp - mov ecx, width_mmx - sub esi, 2 - sub edi, 6 -loop2_pass4: - movd mm0, [esi] ; X X X X v1 v0 v3 v2 - punpcklwd mm0, mm0 ; v1 v0 v1 v0 v3 v2 v3 v2 - sub esi, 4 - movq [edi], mm0 - sub edi, 8 - sub ecx, 2 - jnz loop2_pass4 - EMMS - } - } - - sptr -= (width_mmx*2 - 2); // sign fixed - dp -= (width_mmx*4 - 2); // sign fixed - for (i = width; i; i--) - { - png_byte v[8]; - int j; - sptr -= 2; - png_memcpy(v, sptr, 2); - for (j = 0; j < png_pass_inc[pass]; j++) - { - dp -= 2; - png_memcpy(dp, v, 2); - } - } - } - } /* end of pixel_bytes == 2 */ - - else if (pixel_bytes == 4) - { - if (((pass == 0) || (pass == 1)) && width) - { - int width_mmx = ((width >> 1) << 1) ; - width -= width_mmx; - if (width_mmx) - { - _asm - { - mov esi, sptr - mov edi, dp - mov ecx, width_mmx - sub esi, 4 - sub edi, 60 -loop4_pass0: - movq mm0, [esi] ; v3 v2 v1 v0 v7 v6 v5 v4 - movq mm1, mm0 ; v3 v2 v1 v0 v7 v6 v5 v4 - punpckldq mm0, mm0 ; v7 v6 v5 v4 v7 v6 v5 v4 - punpckhdq mm1, mm1 ; v3 v2 v1 v0 v3 v2 v1 v0 - movq [edi], mm0 - movq [edi + 8], mm0 - movq [edi + 16], mm0 - movq [edi + 24], mm0 - movq [edi+32], mm1 - movq [edi + 40], mm1 - movq [edi+ 48], mm1 - sub esi, 8 - movq [edi + 56], mm1 - sub edi, 64 - sub ecx, 2 - jnz loop4_pass0 - EMMS - } - } - - sptr -= (width_mmx*4 - 4); // sign fixed - dp -= (width_mmx*32 - 4); // sign fixed - for (i = width; i; i--) - { - png_byte v[8]; - int j; - sptr -= 4; - png_memcpy(v, sptr, 4); - for (j = 0; j < png_pass_inc[pass]; j++) - { - dp -= 4; - png_memcpy(dp, v, 4); - } - } - } - else if (((pass == 2) || (pass == 3)) && width) - { - int width_mmx = ((width >> 1) << 1) ; - width -= width_mmx; - if (width_mmx) - { - _asm - { - mov esi, sptr - mov edi, dp - mov ecx, width_mmx - sub esi, 4 - sub edi, 28 -loop4_pass2: - movq mm0, [esi] ; v3 v2 v1 v0 v7 v6 v5 v4 - movq mm1, mm0 ; v3 v2 v1 v0 v7 v6 v5 v4 - punpckldq mm0, mm0 ; v7 v6 v5 v4 v7 v6 v5 v4 - punpckhdq mm1, mm1 ; v3 v2 v1 v0 v3 v2 v1 v0 - movq [edi], mm0 - movq [edi + 8], mm0 - movq [edi+16], mm1 - movq [edi + 24], mm1 - sub esi, 8 - sub edi, 32 - sub ecx, 2 - jnz loop4_pass2 - EMMS - } - } - - sptr -= (width_mmx*4 - 4); // sign fixed - dp -= (width_mmx*16 - 4); // sign fixed - for (i = width; i; i--) - { - png_byte v[8]; - int j; - sptr -= 4; - png_memcpy(v, sptr, 4); - for (j = 0; j < png_pass_inc[pass]; j++) - { - dp -= 4; - png_memcpy(dp, v, 4); - } - } - } - else if (width) // pass == 4 or 5 - { - int width_mmx = ((width >> 1) << 1) ; - width -= width_mmx; - if (width_mmx) - { - _asm - { - mov esi, sptr - mov edi, dp - mov ecx, width_mmx - sub esi, 4 - sub edi, 12 -loop4_pass4: - movq mm0, [esi] ; v3 v2 v1 v0 v7 v6 v5 v4 - movq mm1, mm0 ; v3 v2 v1 v0 v7 v6 v5 v4 - punpckldq mm0, mm0 ; v7 v6 v5 v4 v7 v6 v5 v4 - punpckhdq mm1, mm1 ; v3 v2 v1 v0 v3 v2 v1 v0 - movq [edi], mm0 - sub esi, 8 - movq [edi + 8], mm1 - sub edi, 16 - sub ecx, 2 - jnz loop4_pass4 - EMMS - } - } - - sptr -= (width_mmx*4 - 4); // sign fixed - dp -= (width_mmx*8 - 4); // sign fixed - for (i = width; i; i--) - { - png_byte v[8]; - int j; - sptr -= 4; - png_memcpy(v, sptr, 4); - for (j = 0; j < png_pass_inc[pass]; j++) - { - dp -= 4; - png_memcpy(dp, v, 4); - } - } - } - - } /* end of pixel_bytes == 4 */ - - else if (pixel_bytes == 6) - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, 6); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, 6); - dp -= 6; - } - sptr -= 6; - } - } /* end of pixel_bytes == 6 */ - - else - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, pixel_bytes); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, pixel_bytes); - dp -= pixel_bytes; - } - sptr-= pixel_bytes; - } - } - } /* end of mmx_supported */ - - else /* MMX not supported: use modified C code - takes advantage - * of inlining of memcpy for a constant */ - { - if (pixel_bytes == 1) - { - for (i = width; i; i--) - { - int j; - for (j = 0; j < png_pass_inc[pass]; j++) - *dp-- = *sptr; - sptr--; - } - } - else if (pixel_bytes == 3) - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, pixel_bytes); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, pixel_bytes); - dp -= pixel_bytes; - } - sptr -= pixel_bytes; - } - } - else if (pixel_bytes == 2) - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, pixel_bytes); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, pixel_bytes); - dp -= pixel_bytes; - } - sptr -= pixel_bytes; - } - } - else if (pixel_bytes == 4) - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, pixel_bytes); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, pixel_bytes); - dp -= pixel_bytes; - } - sptr -= pixel_bytes; - } - } - else if (pixel_bytes == 6) - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, pixel_bytes); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, pixel_bytes); - dp -= pixel_bytes; - } - sptr -= pixel_bytes; - } - } - else - { - for (i = width; i; i--) - { - png_byte v[8]; - int j; - png_memcpy(v, sptr, pixel_bytes); - for (j = 0; j < png_pass_inc[pass]; j++) - { - png_memcpy(dp, v, pixel_bytes); - dp -= pixel_bytes; - } - sptr -= pixel_bytes; - } - } - - } /* end of MMX not supported */ - break; - } - } /* end switch (row_info->pixel_depth) */ - - row_info->width = final_width; - row_info->rowbytes = ((final_width * - (png_uint_32)row_info->pixel_depth + 7) >> 3); - } - -} - -#endif /* PNG_READ_INTERLACING_SUPPORTED */ - - -// These variables are utilized in the functions below. They are declared -// globally here to ensure alignment on 8-byte boundaries. - -union uAll { - __int64 use; - double align; -} LBCarryMask = {0x0101010101010101}, - HBClearMask = {0x7f7f7f7f7f7f7f7f}, - ActiveMask, ActiveMask2, ActiveMaskEnd, ShiftBpp, ShiftRem; - - -// Optimized code for PNG Average filter decoder -void /* PRIVATE */ -png_read_filter_row_mmx_avg(png_row_infop row_info, png_bytep row - , png_bytep prev_row) -{ - int bpp; - png_uint_32 FullLength; - png_uint_32 MMXLength; - //png_uint_32 len; - int diff; - - bpp = (row_info->pixel_depth + 7) >> 3; // Get # bytes per pixel - FullLength = row_info->rowbytes; // # of bytes to filter - _asm { - // Init address pointers and offset - mov edi, row // edi ==> Avg(x) - xor ebx, ebx // ebx ==> x - mov edx, edi - mov esi, prev_row // esi ==> Prior(x) - sub edx, bpp // edx ==> Raw(x-bpp) - - xor eax, eax - // Compute the Raw value for the first bpp bytes - // Raw(x) = Avg(x) + (Prior(x)/2) -davgrlp: - mov al, [esi + ebx] // Load al with Prior(x) - inc ebx - shr al, 1 // divide by 2 - add al, [edi+ebx-1] // Add Avg(x); -1 to offset inc ebx - cmp ebx, bpp - mov [edi+ebx-1], al // Write back Raw(x); - // mov does not affect flags; -1 to offset inc ebx - jb davgrlp - // get # of bytes to alignment - mov diff, edi // take start of row - add diff, ebx // add bpp - add diff, 0xf // add 7 + 8 to incr past alignment boundary - and diff, 0xfffffff8 // mask to alignment boundary - sub diff, edi // subtract from start ==> value ebx at alignment - jz davggo - // fix alignment - // Compute the Raw value for the bytes upto the alignment boundary - // Raw(x) = Avg(x) + ((Raw(x-bpp) + Prior(x))/2) - xor ecx, ecx -davglp1: - xor eax, eax - mov cl, [esi + ebx] // load cl with Prior(x) - mov al, [edx + ebx] // load al with Raw(x-bpp) - add ax, cx - inc ebx - shr ax, 1 // divide by 2 - add al, [edi+ebx-1] // Add Avg(x); -1 to offset inc ebx - cmp ebx, diff // Check if at alignment boundary - mov [edi+ebx-1], al // Write back Raw(x); - // mov does not affect flags; -1 to offset inc ebx - jb davglp1 // Repeat until at alignment boundary -davggo: - mov eax, FullLength - mov ecx, eax - sub eax, ebx // subtract alignment fix - and eax, 0x00000007 // calc bytes over mult of 8 - sub ecx, eax // drop over bytes from original length - mov MMXLength, ecx - } // end _asm block - // Now do the math for the rest of the row - switch ( bpp ) - { - case 3: - { - ActiveMask.use = 0x0000000000ffffff; - ShiftBpp.use = 24; // == 3 * 8 - ShiftRem.use = 40; // == 64 - 24 - _asm { - // Re-init address pointers and offset - movq mm7, ActiveMask - mov ebx, diff // ebx ==> x = offset to alignment boundary - movq mm5, LBCarryMask - mov edi, row // edi ==> Avg(x) - movq mm4, HBClearMask - mov esi, prev_row // esi ==> Prior(x) - // PRIME the pump (load the first Raw(x-bpp) data set - movq mm2, [edi + ebx - 8] // Load previous aligned 8 bytes - // (we correct position in loop below) -davg3lp: - movq mm0, [edi + ebx] // Load mm0 with Avg(x) - // Add (Prev_row/2) to Average - movq mm3, mm5 - psrlq mm2, ShiftRem // Correct position Raw(x-bpp) data - movq mm1, [esi + ebx] // Load mm1 with Prior(x) - movq mm6, mm7 - pand mm3, mm1 // get lsb for each prev_row byte - psrlq mm1, 1 // divide prev_row bytes by 2 - pand mm1, mm4 // clear invalid bit 7 of each byte - paddb mm0, mm1 // add (Prev_row/2) to Avg for each byte - // Add 1st active group (Raw(x-bpp)/2) to Average with LBCarry - movq mm1, mm3 // now use mm1 for getting LBCarrys - pand mm1, mm2 // get LBCarrys for each byte where both - // lsb's were == 1 (Only valid for active group) - psrlq mm2, 1 // divide raw bytes by 2 - pand mm2, mm4 // clear invalid bit 7 of each byte - paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte - pand mm2, mm6 // Leave only Active Group 1 bytes to add to Avg - paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active - // byte - // Add 2nd active group (Raw(x-bpp)/2) to Average with LBCarry - psllq mm6, ShiftBpp // shift the mm6 mask to cover bytes 3-5 - movq mm2, mm0 // mov updated Raws to mm2 - psllq mm2, ShiftBpp // shift data to position correctly - movq mm1, mm3 // now use mm1 for getting LBCarrys - pand mm1, mm2 // get LBCarrys for each byte where both - // lsb's were == 1 (Only valid for active group) - psrlq mm2, 1 // divide raw bytes by 2 - pand mm2, mm4 // clear invalid bit 7 of each byte - paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte - pand mm2, mm6 // Leave only Active Group 2 bytes to add to Avg - paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active - // byte - - // Add 3rd active group (Raw(x-bpp)/2) to Average with LBCarry - psllq mm6, ShiftBpp // shift the mm6 mask to cover the last two - // bytes - movq mm2, mm0 // mov updated Raws to mm2 - psllq mm2, ShiftBpp // shift data to position correctly - // Data only needs to be shifted once here to - // get the correct x-bpp offset. - movq mm1, mm3 // now use mm1 for getting LBCarrys - pand mm1, mm2 // get LBCarrys for each byte where both - // lsb's were == 1 (Only valid for active group) - psrlq mm2, 1 // divide raw bytes by 2 - pand mm2, mm4 // clear invalid bit 7 of each byte - paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte - pand mm2, mm6 // Leave only Active Group 2 bytes to add to Avg - add ebx, 8 - paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active - // byte - - // Now ready to write back to memory - movq [edi + ebx - 8], mm0 - // Move updated Raw(x) to use as Raw(x-bpp) for next loop - cmp ebx, MMXLength - movq mm2, mm0 // mov updated Raw(x) to mm2 - jb davg3lp - } // end _asm block - } - break; - - case 6: - case 4: - case 7: - case 5: - { - ActiveMask.use = 0xffffffffffffffff; // use shift below to clear - // appropriate inactive bytes - ShiftBpp.use = bpp << 3; - ShiftRem.use = 64 - ShiftBpp.use; - _asm { - movq mm4, HBClearMask - // Re-init address pointers and offset - mov ebx, diff // ebx ==> x = offset to alignment boundary - // Load ActiveMask and clear all bytes except for 1st active group - movq mm7, ActiveMask - mov edi, row // edi ==> Avg(x) - psrlq mm7, ShiftRem - mov esi, prev_row // esi ==> Prior(x) - movq mm6, mm7 - movq mm5, LBCarryMask - psllq mm6, ShiftBpp // Create mask for 2nd active group - // PRIME the pump (load the first Raw(x-bpp) data set - movq mm2, [edi + ebx - 8] // Load previous aligned 8 bytes - // (we correct position in loop below) -davg4lp: - movq mm0, [edi + ebx] - psrlq mm2, ShiftRem // shift data to position correctly - movq mm1, [esi + ebx] - // Add (Prev_row/2) to Average - movq mm3, mm5 - pand mm3, mm1 // get lsb for each prev_row byte - psrlq mm1, 1 // divide prev_row bytes by 2 - pand mm1, mm4 // clear invalid bit 7 of each byte - paddb mm0, mm1 // add (Prev_row/2) to Avg for each byte - // Add 1st active group (Raw(x-bpp)/2) to Average with LBCarry - movq mm1, mm3 // now use mm1 for getting LBCarrys - pand mm1, mm2 // get LBCarrys for each byte where both - // lsb's were == 1 (Only valid for active group) - psrlq mm2, 1 // divide raw bytes by 2 - pand mm2, mm4 // clear invalid bit 7 of each byte - paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte - pand mm2, mm7 // Leave only Active Group 1 bytes to add to Avg - paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active - // byte - // Add 2nd active group (Raw(x-bpp)/2) to Average with LBCarry - movq mm2, mm0 // mov updated Raws to mm2 - psllq mm2, ShiftBpp // shift data to position correctly - add ebx, 8 - movq mm1, mm3 // now use mm1 for getting LBCarrys - pand mm1, mm2 // get LBCarrys for each byte where both - // lsb's were == 1 (Only valid for active group) - psrlq mm2, 1 // divide raw bytes by 2 - pand mm2, mm4 // clear invalid bit 7 of each byte - paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte - pand mm2, mm6 // Leave only Active Group 2 bytes to add to Avg - paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active - // byte - cmp ebx, MMXLength - // Now ready to write back to memory - movq [edi + ebx - 8], mm0 - // Prep Raw(x-bpp) for next loop - movq mm2, mm0 // mov updated Raws to mm2 - jb davg4lp - } // end _asm block - } - break; - case 2: - { - ActiveMask.use = 0x000000000000ffff; - ShiftBpp.use = 16; // == 2 * 8 [BUGFIX] - ShiftRem.use = 48; // == 64 - 16 [BUGFIX] - _asm { - // Load ActiveMask - movq mm7, ActiveMask - // Re-init address pointers and offset - mov ebx, diff // ebx ==> x = offset to alignment boundary - movq mm5, LBCarryMask - mov edi, row // edi ==> Avg(x) - movq mm4, HBClearMask - mov esi, prev_row // esi ==> Prior(x) - // PRIME the pump (load the first Raw(x-bpp) data set - movq mm2, [edi + ebx - 8] // Load previous aligned 8 bytes - // (we correct position in loop below) -davg2lp: - movq mm0, [edi + ebx] - psrlq mm2, ShiftRem // shift data to position correctly [BUGFIX] - movq mm1, [esi + ebx] - // Add (Prev_row/2) to Average - movq mm3, mm5 - pand mm3, mm1 // get lsb for each prev_row byte - psrlq mm1, 1 // divide prev_row bytes by 2 - pand mm1, mm4 // clear invalid bit 7 of each byte - movq mm6, mm7 - paddb mm0, mm1 // add (Prev_row/2) to Avg for each byte - // Add 1st active group (Raw(x-bpp)/2) to Average with LBCarry - movq mm1, mm3 // now use mm1 for getting LBCarrys - pand mm1, mm2 // get LBCarrys for each byte where both - // lsb's were == 1 (Only valid for active group) - psrlq mm2, 1 // divide raw bytes by 2 - pand mm2, mm4 // clear invalid bit 7 of each byte - paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte - pand mm2, mm6 // Leave only Active Group 1 bytes to add to Avg - paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active byte - // Add 2nd active group (Raw(x-bpp)/2) to Average with LBCarry - psllq mm6, ShiftBpp // shift the mm6 mask to cover bytes 2 & 3 - movq mm2, mm0 // mov updated Raws to mm2 - psllq mm2, ShiftBpp // shift data to position correctly - movq mm1, mm3 // now use mm1 for getting LBCarrys - pand mm1, mm2 // get LBCarrys for each byte where both - // lsb's were == 1 (Only valid for active group) - psrlq mm2, 1 // divide raw bytes by 2 - pand mm2, mm4 // clear invalid bit 7 of each byte - paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte - pand mm2, mm6 // Leave only Active Group 2 bytes to add to Avg - paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active byte - - // Add rdd active group (Raw(x-bpp)/2) to Average with LBCarry - psllq mm6, ShiftBpp // shift the mm6 mask to cover bytes 4 & 5 - movq mm2, mm0 // mov updated Raws to mm2 - psllq mm2, ShiftBpp // shift data to position correctly - // Data only needs to be shifted once here to - // get the correct x-bpp offset. - movq mm1, mm3 // now use mm1 for getting LBCarrys - pand mm1, mm2 // get LBCarrys for each byte where both - // lsb's were == 1 (Only valid for active group) - psrlq mm2, 1 // divide raw bytes by 2 - pand mm2, mm4 // clear invalid bit 7 of each byte - paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte - pand mm2, mm6 // Leave only Active Group 2 bytes to add to Avg - paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active byte - - // Add 4th active group (Raw(x-bpp)/2) to Average with LBCarry - psllq mm6, ShiftBpp // shift the mm6 mask to cover bytes 6 & 7 - movq mm2, mm0 // mov updated Raws to mm2 - psllq mm2, ShiftBpp // shift data to position correctly - // Data only needs to be shifted once here to - // get the correct x-bpp offset. - add ebx, 8 - movq mm1, mm3 // now use mm1 for getting LBCarrys - pand mm1, mm2 // get LBCarrys for each byte where both - // lsb's were == 1 (Only valid for active group) - psrlq mm2, 1 // divide raw bytes by 2 - pand mm2, mm4 // clear invalid bit 7 of each byte - paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte - pand mm2, mm6 // Leave only Active Group 2 bytes to add to Avg - paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active byte - - cmp ebx, MMXLength - // Now ready to write back to memory - movq [edi + ebx - 8], mm0 - // Prep Raw(x-bpp) for next loop - movq mm2, mm0 // mov updated Raws to mm2 - jb davg2lp - } // end _asm block - } - break; - - case 1: // bpp == 1 - { - _asm { - // Re-init address pointers and offset - mov ebx, diff // ebx ==> x = offset to alignment boundary - mov edi, row // edi ==> Avg(x) - cmp ebx, FullLength // Test if offset at end of array - jnb davg1end - // Do Paeth decode for remaining bytes - mov esi, prev_row // esi ==> Prior(x) - mov edx, edi - xor ecx, ecx // zero ecx before using cl & cx in loop below - sub edx, bpp // edx ==> Raw(x-bpp) -davg1lp: - // Raw(x) = Avg(x) + ((Raw(x-bpp) + Prior(x))/2) - xor eax, eax - mov cl, [esi + ebx] // load cl with Prior(x) - mov al, [edx + ebx] // load al with Raw(x-bpp) - add ax, cx - inc ebx - shr ax, 1 // divide by 2 - add al, [edi+ebx-1] // Add Avg(x); -1 to offset inc ebx - cmp ebx, FullLength // Check if at end of array - mov [edi+ebx-1], al // Write back Raw(x); - // mov does not affect flags; -1 to offset inc ebx - jb davg1lp -davg1end: - } // end _asm block - } - return; - - case 8: // bpp == 8 - { - _asm { - // Re-init address pointers and offset - mov ebx, diff // ebx ==> x = offset to alignment boundary - movq mm5, LBCarryMask - mov edi, row // edi ==> Avg(x) - movq mm4, HBClearMask - mov esi, prev_row // esi ==> Prior(x) - // PRIME the pump (load the first Raw(x-bpp) data set - movq mm2, [edi + ebx - 8] // Load previous aligned 8 bytes - // (NO NEED to correct position in loop below) -davg8lp: - movq mm0, [edi + ebx] - movq mm3, mm5 - movq mm1, [esi + ebx] - add ebx, 8 - pand mm3, mm1 // get lsb for each prev_row byte - psrlq mm1, 1 // divide prev_row bytes by 2 - pand mm3, mm2 // get LBCarrys for each byte where both - // lsb's were == 1 - psrlq mm2, 1 // divide raw bytes by 2 - pand mm1, mm4 // clear invalid bit 7 of each byte - paddb mm0, mm3 // add LBCarrys to Avg for each byte - pand mm2, mm4 // clear invalid bit 7 of each byte - paddb mm0, mm1 // add (Prev_row/2) to Avg for each byte - paddb mm0, mm2 // add (Raw/2) to Avg for each byte - cmp ebx, MMXLength - movq [edi + ebx - 8], mm0 - movq mm2, mm0 // reuse as Raw(x-bpp) - jb davg8lp - } // end _asm block - } - break; - default: // bpp greater than 8 - { - _asm { - movq mm5, LBCarryMask - // Re-init address pointers and offset - mov ebx, diff // ebx ==> x = offset to alignment boundary - mov edi, row // edi ==> Avg(x) - movq mm4, HBClearMask - mov edx, edi - mov esi, prev_row // esi ==> Prior(x) - sub edx, bpp // edx ==> Raw(x-bpp) -davgAlp: - movq mm0, [edi + ebx] - movq mm3, mm5 - movq mm1, [esi + ebx] - pand mm3, mm1 // get lsb for each prev_row byte - movq mm2, [edx + ebx] - psrlq mm1, 1 // divide prev_row bytes by 2 - pand mm3, mm2 // get LBCarrys for each byte where both - // lsb's were == 1 - psrlq mm2, 1 // divide raw bytes by 2 - pand mm1, mm4 // clear invalid bit 7 of each byte - paddb mm0, mm3 // add LBCarrys to Avg for each byte - pand mm2, mm4 // clear invalid bit 7 of each byte - paddb mm0, mm1 // add (Prev_row/2) to Avg for each byte - add ebx, 8 - paddb mm0, mm2 // add (Raw/2) to Avg for each byte - cmp ebx, MMXLength - movq [edi + ebx - 8], mm0 - jb davgAlp - } // end _asm block - } - break; - } // end switch ( bpp ) - - _asm { - // MMX acceleration complete now do clean-up - // Check if any remaining bytes left to decode - mov ebx, MMXLength // ebx ==> x = offset bytes remaining after MMX - mov edi, row // edi ==> Avg(x) - cmp ebx, FullLength // Test if offset at end of array - jnb davgend - // Do Paeth decode for remaining bytes - mov esi, prev_row // esi ==> Prior(x) - mov edx, edi - xor ecx, ecx // zero ecx before using cl & cx in loop below - sub edx, bpp // edx ==> Raw(x-bpp) -davglp2: - // Raw(x) = Avg(x) + ((Raw(x-bpp) + Prior(x))/2) - xor eax, eax - mov cl, [esi + ebx] // load cl with Prior(x) - mov al, [edx + ebx] // load al with Raw(x-bpp) - add ax, cx - inc ebx - shr ax, 1 // divide by 2 - add al, [edi+ebx-1] // Add Avg(x); -1 to offset inc ebx - cmp ebx, FullLength // Check if at end of array - mov [edi+ebx-1], al // Write back Raw(x); - // mov does not affect flags; -1 to offset inc ebx - jb davglp2 -davgend: - emms // End MMX instructions; prep for possible FP instrs. - } // end _asm block -} - -// Optimized code for PNG Paeth filter decoder -void /* PRIVATE */ -png_read_filter_row_mmx_paeth(png_row_infop row_info, png_bytep row, - png_bytep prev_row) -{ - png_uint_32 FullLength; - png_uint_32 MMXLength; - //png_uint_32 len; - int bpp; - int diff; - //int ptemp; - int patemp, pbtemp, pctemp; - - bpp = (row_info->pixel_depth + 7) >> 3; // Get # bytes per pixel - FullLength = row_info->rowbytes; // # of bytes to filter - _asm - { - xor ebx, ebx // ebx ==> x offset - mov edi, row - xor edx, edx // edx ==> x-bpp offset - mov esi, prev_row - xor eax, eax - - // Compute the Raw value for the first bpp bytes - // Note: the formula works out to be always - // Paeth(x) = Raw(x) + Prior(x) where x < bpp -dpthrlp: - mov al, [edi + ebx] - add al, [esi + ebx] - inc ebx - cmp ebx, bpp - mov [edi + ebx - 1], al - jb dpthrlp - // get # of bytes to alignment - mov diff, edi // take start of row - add diff, ebx // add bpp - xor ecx, ecx - add diff, 0xf // add 7 + 8 to incr past alignment boundary - and diff, 0xfffffff8 // mask to alignment boundary - sub diff, edi // subtract from start ==> value ebx at alignment - jz dpthgo - // fix alignment -dpthlp1: - xor eax, eax - // pav = p - a = (a + b - c) - a = b - c - mov al, [esi + ebx] // load Prior(x) into al - mov cl, [esi + edx] // load Prior(x-bpp) into cl - sub eax, ecx // subtract Prior(x-bpp) - mov patemp, eax // Save pav for later use - xor eax, eax - // pbv = p - b = (a + b - c) - b = a - c - mov al, [edi + edx] // load Raw(x-bpp) into al - sub eax, ecx // subtract Prior(x-bpp) - mov ecx, eax - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - add eax, patemp // pcv = pav + pbv - // pc = abs(pcv) - test eax, 0x80000000 - jz dpthpca - neg eax // reverse sign of neg values -dpthpca: - mov pctemp, eax // save pc for later use - // pb = abs(pbv) - test ecx, 0x80000000 - jz dpthpba - neg ecx // reverse sign of neg values -dpthpba: - mov pbtemp, ecx // save pb for later use - // pa = abs(pav) - mov eax, patemp - test eax, 0x80000000 - jz dpthpaa - neg eax // reverse sign of neg values -dpthpaa: - mov patemp, eax // save pa for later use - // test if pa <= pb - cmp eax, ecx - jna dpthabb - // pa > pb; now test if pb <= pc - cmp ecx, pctemp - jna dpthbbc - // pb > pc; Raw(x) = Paeth(x) + Prior(x-bpp) - mov cl, [esi + edx] // load Prior(x-bpp) into cl - jmp dpthpaeth -dpthbbc: - // pb <= pc; Raw(x) = Paeth(x) + Prior(x) - mov cl, [esi + ebx] // load Prior(x) into cl - jmp dpthpaeth -dpthabb: - // pa <= pb; now test if pa <= pc - cmp eax, pctemp - jna dpthabc - // pa > pc; Raw(x) = Paeth(x) + Prior(x-bpp) - mov cl, [esi + edx] // load Prior(x-bpp) into cl - jmp dpthpaeth -dpthabc: - // pa <= pc; Raw(x) = Paeth(x) + Raw(x-bpp) - mov cl, [edi + edx] // load Raw(x-bpp) into cl -dpthpaeth: - inc ebx - inc edx - // Raw(x) = (Paeth(x) + Paeth_Predictor( a, b, c )) mod 256 - add [edi + ebx - 1], cl - cmp ebx, diff - jb dpthlp1 -dpthgo: - mov ecx, FullLength - mov eax, ecx - sub eax, ebx // subtract alignment fix - and eax, 0x00000007 // calc bytes over mult of 8 - sub ecx, eax // drop over bytes from original length - mov MMXLength, ecx - } // end _asm block - // Now do the math for the rest of the row - switch ( bpp ) - { - case 3: - { - ActiveMask.use = 0x0000000000ffffff; - ActiveMaskEnd.use = 0xffff000000000000; - ShiftBpp.use = 24; // == bpp(3) * 8 - ShiftRem.use = 40; // == 64 - 24 - _asm - { - mov ebx, diff - mov edi, row - mov esi, prev_row - pxor mm0, mm0 - // PRIME the pump (load the first Raw(x-bpp) data set - movq mm1, [edi+ebx-8] -dpth3lp: - psrlq mm1, ShiftRem // shift last 3 bytes to 1st 3 bytes - movq mm2, [esi + ebx] // load b=Prior(x) - punpcklbw mm1, mm0 // Unpack High bytes of a - movq mm3, [esi+ebx-8] // Prep c=Prior(x-bpp) bytes - punpcklbw mm2, mm0 // Unpack High bytes of b - psrlq mm3, ShiftRem // shift last 3 bytes to 1st 3 bytes - // pav = p - a = (a + b - c) - a = b - c - movq mm4, mm2 - punpcklbw mm3, mm0 // Unpack High bytes of c - // pbv = p - b = (a + b - c) - b = a - c - movq mm5, mm1 - psubw mm4, mm3 - pxor mm7, mm7 - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - movq mm6, mm4 - psubw mm5, mm3 - - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - pcmpgtw mm0, mm4 // Create mask pav bytes < 0 - paddw mm6, mm5 - pand mm0, mm4 // Only pav bytes < 0 in mm7 - pcmpgtw mm7, mm5 // Create mask pbv bytes < 0 - psubw mm4, mm0 - pand mm7, mm5 // Only pbv bytes < 0 in mm0 - psubw mm4, mm0 - psubw mm5, mm7 - pxor mm0, mm0 - pcmpgtw mm0, mm6 // Create mask pcv bytes < 0 - pand mm0, mm6 // Only pav bytes < 0 in mm7 - psubw mm5, mm7 - psubw mm6, mm0 - // test pa <= pb - movq mm7, mm4 - psubw mm6, mm0 - pcmpgtw mm7, mm5 // pa > pb? - movq mm0, mm7 - // use mm7 mask to merge pa & pb - pand mm5, mm7 - // use mm0 mask copy to merge a & b - pand mm2, mm0 - pandn mm7, mm4 - pandn mm0, mm1 - paddw mm7, mm5 - paddw mm0, mm2 - // test ((pa <= pb)? pa:pb) <= pc - pcmpgtw mm7, mm6 // pab > pc? - pxor mm1, mm1 - pand mm3, mm7 - pandn mm7, mm0 - paddw mm7, mm3 - pxor mm0, mm0 - packuswb mm7, mm1 - movq mm3, [esi + ebx] // load c=Prior(x-bpp) - pand mm7, ActiveMask - movq mm2, mm3 // load b=Prior(x) step 1 - paddb mm7, [edi + ebx] // add Paeth predictor with Raw(x) - punpcklbw mm3, mm0 // Unpack High bytes of c - movq [edi + ebx], mm7 // write back updated value - movq mm1, mm7 // Now mm1 will be used as Raw(x-bpp) - // Now do Paeth for 2nd set of bytes (3-5) - psrlq mm2, ShiftBpp // load b=Prior(x) step 2 - punpcklbw mm1, mm0 // Unpack High bytes of a - pxor mm7, mm7 - punpcklbw mm2, mm0 // Unpack High bytes of b - // pbv = p - b = (a + b - c) - b = a - c - movq mm5, mm1 - // pav = p - a = (a + b - c) - a = b - c - movq mm4, mm2 - psubw mm5, mm3 - psubw mm4, mm3 - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = - // pav + pbv = pbv + pav - movq mm6, mm5 - paddw mm6, mm4 - - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - pcmpgtw mm0, mm5 // Create mask pbv bytes < 0 - pcmpgtw mm7, mm4 // Create mask pav bytes < 0 - pand mm0, mm5 // Only pbv bytes < 0 in mm0 - pand mm7, mm4 // Only pav bytes < 0 in mm7 - psubw mm5, mm0 - psubw mm4, mm7 - psubw mm5, mm0 - psubw mm4, mm7 - pxor mm0, mm0 - pcmpgtw mm0, mm6 // Create mask pcv bytes < 0 - pand mm0, mm6 // Only pav bytes < 0 in mm7 - psubw mm6, mm0 - // test pa <= pb - movq mm7, mm4 - psubw mm6, mm0 - pcmpgtw mm7, mm5 // pa > pb? - movq mm0, mm7 - // use mm7 mask to merge pa & pb - pand mm5, mm7 - // use mm0 mask copy to merge a & b - pand mm2, mm0 - pandn mm7, mm4 - pandn mm0, mm1 - paddw mm7, mm5 - paddw mm0, mm2 - // test ((pa <= pb)? pa:pb) <= pc - pcmpgtw mm7, mm6 // pab > pc? - movq mm2, [esi + ebx] // load b=Prior(x) - pand mm3, mm7 - pandn mm7, mm0 - pxor mm1, mm1 - paddw mm7, mm3 - pxor mm0, mm0 - packuswb mm7, mm1 - movq mm3, mm2 // load c=Prior(x-bpp) step 1 - pand mm7, ActiveMask - punpckhbw mm2, mm0 // Unpack High bytes of b - psllq mm7, ShiftBpp // Shift bytes to 2nd group of 3 bytes - // pav = p - a = (a + b - c) - a = b - c - movq mm4, mm2 - paddb mm7, [edi + ebx] // add Paeth predictor with Raw(x) - psllq mm3, ShiftBpp // load c=Prior(x-bpp) step 2 - movq [edi + ebx], mm7 // write back updated value - movq mm1, mm7 - punpckhbw mm3, mm0 // Unpack High bytes of c - psllq mm1, ShiftBpp // Shift bytes - // Now mm1 will be used as Raw(x-bpp) - // Now do Paeth for 3rd, and final, set of bytes (6-7) - pxor mm7, mm7 - punpckhbw mm1, mm0 // Unpack High bytes of a - psubw mm4, mm3 - // pbv = p - b = (a + b - c) - b = a - c - movq mm5, mm1 - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - movq mm6, mm4 - psubw mm5, mm3 - pxor mm0, mm0 - paddw mm6, mm5 - - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - pcmpgtw mm0, mm4 // Create mask pav bytes < 0 - pcmpgtw mm7, mm5 // Create mask pbv bytes < 0 - pand mm0, mm4 // Only pav bytes < 0 in mm7 - pand mm7, mm5 // Only pbv bytes < 0 in mm0 - psubw mm4, mm0 - psubw mm5, mm7 - psubw mm4, mm0 - psubw mm5, mm7 - pxor mm0, mm0 - pcmpgtw mm0, mm6 // Create mask pcv bytes < 0 - pand mm0, mm6 // Only pav bytes < 0 in mm7 - psubw mm6, mm0 - // test pa <= pb - movq mm7, mm4 - psubw mm6, mm0 - pcmpgtw mm7, mm5 // pa > pb? - movq mm0, mm7 - // use mm0 mask copy to merge a & b - pand mm2, mm0 - // use mm7 mask to merge pa & pb - pand mm5, mm7 - pandn mm0, mm1 - pandn mm7, mm4 - paddw mm0, mm2 - paddw mm7, mm5 - // test ((pa <= pb)? pa:pb) <= pc - pcmpgtw mm7, mm6 // pab > pc? - pand mm3, mm7 - pandn mm7, mm0 - paddw mm7, mm3 - pxor mm1, mm1 - packuswb mm1, mm7 - // Step ebx to next set of 8 bytes and repeat loop til done - add ebx, 8 - pand mm1, ActiveMaskEnd - paddb mm1, [edi + ebx - 8] // add Paeth predictor with Raw(x) - - cmp ebx, MMXLength - pxor mm0, mm0 // pxor does not affect flags - movq [edi + ebx - 8], mm1 // write back updated value - // mm1 will be used as Raw(x-bpp) next loop - // mm3 ready to be used as Prior(x-bpp) next loop - jb dpth3lp - } // end _asm block - } - break; - - case 6: - case 7: - case 5: - { - ActiveMask.use = 0x00000000ffffffff; - ActiveMask2.use = 0xffffffff00000000; - ShiftBpp.use = bpp << 3; // == bpp * 8 - ShiftRem.use = 64 - ShiftBpp.use; - _asm - { - mov ebx, diff - mov edi, row - mov esi, prev_row - // PRIME the pump (load the first Raw(x-bpp) data set - movq mm1, [edi+ebx-8] - pxor mm0, mm0 -dpth6lp: - // Must shift to position Raw(x-bpp) data - psrlq mm1, ShiftRem - // Do first set of 4 bytes - movq mm3, [esi+ebx-8] // read c=Prior(x-bpp) bytes - punpcklbw mm1, mm0 // Unpack Low bytes of a - movq mm2, [esi + ebx] // load b=Prior(x) - punpcklbw mm2, mm0 // Unpack Low bytes of b - // Must shift to position Prior(x-bpp) data - psrlq mm3, ShiftRem - // pav = p - a = (a + b - c) - a = b - c - movq mm4, mm2 - punpcklbw mm3, mm0 // Unpack Low bytes of c - // pbv = p - b = (a + b - c) - b = a - c - movq mm5, mm1 - psubw mm4, mm3 - pxor mm7, mm7 - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - movq mm6, mm4 - psubw mm5, mm3 - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - pcmpgtw mm0, mm4 // Create mask pav bytes < 0 - paddw mm6, mm5 - pand mm0, mm4 // Only pav bytes < 0 in mm7 - pcmpgtw mm7, mm5 // Create mask pbv bytes < 0 - psubw mm4, mm0 - pand mm7, mm5 // Only pbv bytes < 0 in mm0 - psubw mm4, mm0 - psubw mm5, mm7 - pxor mm0, mm0 - pcmpgtw mm0, mm6 // Create mask pcv bytes < 0 - pand mm0, mm6 // Only pav bytes < 0 in mm7 - psubw mm5, mm7 - psubw mm6, mm0 - // test pa <= pb - movq mm7, mm4 - psubw mm6, mm0 - pcmpgtw mm7, mm5 // pa > pb? - movq mm0, mm7 - // use mm7 mask to merge pa & pb - pand mm5, mm7 - // use mm0 mask copy to merge a & b - pand mm2, mm0 - pandn mm7, mm4 - pandn mm0, mm1 - paddw mm7, mm5 - paddw mm0, mm2 - // test ((pa <= pb)? pa:pb) <= pc - pcmpgtw mm7, mm6 // pab > pc? - pxor mm1, mm1 - pand mm3, mm7 - pandn mm7, mm0 - paddw mm7, mm3 - pxor mm0, mm0 - packuswb mm7, mm1 - movq mm3, [esi + ebx - 8] // load c=Prior(x-bpp) - pand mm7, ActiveMask - psrlq mm3, ShiftRem - movq mm2, [esi + ebx] // load b=Prior(x) step 1 - paddb mm7, [edi + ebx] // add Paeth predictor with Raw(x) - movq mm6, mm2 - movq [edi + ebx], mm7 // write back updated value - movq mm1, [edi+ebx-8] - psllq mm6, ShiftBpp - movq mm5, mm7 - psrlq mm1, ShiftRem - por mm3, mm6 - psllq mm5, ShiftBpp - punpckhbw mm3, mm0 // Unpack High bytes of c - por mm1, mm5 - // Do second set of 4 bytes - punpckhbw mm2, mm0 // Unpack High bytes of b - punpckhbw mm1, mm0 // Unpack High bytes of a - // pav = p - a = (a + b - c) - a = b - c - movq mm4, mm2 - // pbv = p - b = (a + b - c) - b = a - c - movq mm5, mm1 - psubw mm4, mm3 - pxor mm7, mm7 - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - movq mm6, mm4 - psubw mm5, mm3 - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - pcmpgtw mm0, mm4 // Create mask pav bytes < 0 - paddw mm6, mm5 - pand mm0, mm4 // Only pav bytes < 0 in mm7 - pcmpgtw mm7, mm5 // Create mask pbv bytes < 0 - psubw mm4, mm0 - pand mm7, mm5 // Only pbv bytes < 0 in mm0 - psubw mm4, mm0 - psubw mm5, mm7 - pxor mm0, mm0 - pcmpgtw mm0, mm6 // Create mask pcv bytes < 0 - pand mm0, mm6 // Only pav bytes < 0 in mm7 - psubw mm5, mm7 - psubw mm6, mm0 - // test pa <= pb - movq mm7, mm4 - psubw mm6, mm0 - pcmpgtw mm7, mm5 // pa > pb? - movq mm0, mm7 - // use mm7 mask to merge pa & pb - pand mm5, mm7 - // use mm0 mask copy to merge a & b - pand mm2, mm0 - pandn mm7, mm4 - pandn mm0, mm1 - paddw mm7, mm5 - paddw mm0, mm2 - // test ((pa <= pb)? pa:pb) <= pc - pcmpgtw mm7, mm6 // pab > pc? - pxor mm1, mm1 - pand mm3, mm7 - pandn mm7, mm0 - pxor mm1, mm1 - paddw mm7, mm3 - pxor mm0, mm0 - // Step ex to next set of 8 bytes and repeat loop til done - add ebx, 8 - packuswb mm1, mm7 - paddb mm1, [edi + ebx - 8] // add Paeth predictor with Raw(x) - cmp ebx, MMXLength - movq [edi + ebx - 8], mm1 // write back updated value - // mm1 will be used as Raw(x-bpp) next loop - jb dpth6lp - } // end _asm block - } - break; - - case 4: - { - ActiveMask.use = 0x00000000ffffffff; - _asm { - mov ebx, diff - mov edi, row - mov esi, prev_row - pxor mm0, mm0 - // PRIME the pump (load the first Raw(x-bpp) data set - movq mm1, [edi+ebx-8] // Only time should need to read - // a=Raw(x-bpp) bytes -dpth4lp: - // Do first set of 4 bytes - movq mm3, [esi+ebx-8] // read c=Prior(x-bpp) bytes - punpckhbw mm1, mm0 // Unpack Low bytes of a - movq mm2, [esi + ebx] // load b=Prior(x) - punpcklbw mm2, mm0 // Unpack High bytes of b - // pav = p - a = (a + b - c) - a = b - c - movq mm4, mm2 - punpckhbw mm3, mm0 // Unpack High bytes of c - // pbv = p - b = (a + b - c) - b = a - c - movq mm5, mm1 - psubw mm4, mm3 - pxor mm7, mm7 - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - movq mm6, mm4 - psubw mm5, mm3 - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - pcmpgtw mm0, mm4 // Create mask pav bytes < 0 - paddw mm6, mm5 - pand mm0, mm4 // Only pav bytes < 0 in mm7 - pcmpgtw mm7, mm5 // Create mask pbv bytes < 0 - psubw mm4, mm0 - pand mm7, mm5 // Only pbv bytes < 0 in mm0 - psubw mm4, mm0 - psubw mm5, mm7 - pxor mm0, mm0 - pcmpgtw mm0, mm6 // Create mask pcv bytes < 0 - pand mm0, mm6 // Only pav bytes < 0 in mm7 - psubw mm5, mm7 - psubw mm6, mm0 - // test pa <= pb - movq mm7, mm4 - psubw mm6, mm0 - pcmpgtw mm7, mm5 // pa > pb? - movq mm0, mm7 - // use mm7 mask to merge pa & pb - pand mm5, mm7 - // use mm0 mask copy to merge a & b - pand mm2, mm0 - pandn mm7, mm4 - pandn mm0, mm1 - paddw mm7, mm5 - paddw mm0, mm2 - // test ((pa <= pb)? pa:pb) <= pc - pcmpgtw mm7, mm6 // pab > pc? - pxor mm1, mm1 - pand mm3, mm7 - pandn mm7, mm0 - paddw mm7, mm3 - pxor mm0, mm0 - packuswb mm7, mm1 - movq mm3, [esi + ebx] // load c=Prior(x-bpp) - pand mm7, ActiveMask - movq mm2, mm3 // load b=Prior(x) step 1 - paddb mm7, [edi + ebx] // add Paeth predictor with Raw(x) - punpcklbw mm3, mm0 // Unpack High bytes of c - movq [edi + ebx], mm7 // write back updated value - movq mm1, mm7 // Now mm1 will be used as Raw(x-bpp) - // Do second set of 4 bytes - punpckhbw mm2, mm0 // Unpack Low bytes of b - punpcklbw mm1, mm0 // Unpack Low bytes of a - // pav = p - a = (a + b - c) - a = b - c - movq mm4, mm2 - // pbv = p - b = (a + b - c) - b = a - c - movq mm5, mm1 - psubw mm4, mm3 - pxor mm7, mm7 - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - movq mm6, mm4 - psubw mm5, mm3 - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - pcmpgtw mm0, mm4 // Create mask pav bytes < 0 - paddw mm6, mm5 - pand mm0, mm4 // Only pav bytes < 0 in mm7 - pcmpgtw mm7, mm5 // Create mask pbv bytes < 0 - psubw mm4, mm0 - pand mm7, mm5 // Only pbv bytes < 0 in mm0 - psubw mm4, mm0 - psubw mm5, mm7 - pxor mm0, mm0 - pcmpgtw mm0, mm6 // Create mask pcv bytes < 0 - pand mm0, mm6 // Only pav bytes < 0 in mm7 - psubw mm5, mm7 - psubw mm6, mm0 - // test pa <= pb - movq mm7, mm4 - psubw mm6, mm0 - pcmpgtw mm7, mm5 // pa > pb? - movq mm0, mm7 - // use mm7 mask to merge pa & pb - pand mm5, mm7 - // use mm0 mask copy to merge a & b - pand mm2, mm0 - pandn mm7, mm4 - pandn mm0, mm1 - paddw mm7, mm5 - paddw mm0, mm2 - // test ((pa <= pb)? pa:pb) <= pc - pcmpgtw mm7, mm6 // pab > pc? - pxor mm1, mm1 - pand mm3, mm7 - pandn mm7, mm0 - pxor mm1, mm1 - paddw mm7, mm3 - pxor mm0, mm0 - // Step ex to next set of 8 bytes and repeat loop til done - add ebx, 8 - packuswb mm1, mm7 - paddb mm1, [edi + ebx - 8] // add Paeth predictor with Raw(x) - cmp ebx, MMXLength - movq [edi + ebx - 8], mm1 // write back updated value - // mm1 will be used as Raw(x-bpp) next loop - jb dpth4lp - } // end _asm block - } - break; - case 8: // bpp == 8 - { - ActiveMask.use = 0x00000000ffffffff; - _asm { - mov ebx, diff - mov edi, row - mov esi, prev_row - pxor mm0, mm0 - // PRIME the pump (load the first Raw(x-bpp) data set - movq mm1, [edi+ebx-8] // Only time should need to read - // a=Raw(x-bpp) bytes -dpth8lp: - // Do first set of 4 bytes - movq mm3, [esi+ebx-8] // read c=Prior(x-bpp) bytes - punpcklbw mm1, mm0 // Unpack Low bytes of a - movq mm2, [esi + ebx] // load b=Prior(x) - punpcklbw mm2, mm0 // Unpack Low bytes of b - // pav = p - a = (a + b - c) - a = b - c - movq mm4, mm2 - punpcklbw mm3, mm0 // Unpack Low bytes of c - // pbv = p - b = (a + b - c) - b = a - c - movq mm5, mm1 - psubw mm4, mm3 - pxor mm7, mm7 - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - movq mm6, mm4 - psubw mm5, mm3 - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - pcmpgtw mm0, mm4 // Create mask pav bytes < 0 - paddw mm6, mm5 - pand mm0, mm4 // Only pav bytes < 0 in mm7 - pcmpgtw mm7, mm5 // Create mask pbv bytes < 0 - psubw mm4, mm0 - pand mm7, mm5 // Only pbv bytes < 0 in mm0 - psubw mm4, mm0 - psubw mm5, mm7 - pxor mm0, mm0 - pcmpgtw mm0, mm6 // Create mask pcv bytes < 0 - pand mm0, mm6 // Only pav bytes < 0 in mm7 - psubw mm5, mm7 - psubw mm6, mm0 - // test pa <= pb - movq mm7, mm4 - psubw mm6, mm0 - pcmpgtw mm7, mm5 // pa > pb? - movq mm0, mm7 - // use mm7 mask to merge pa & pb - pand mm5, mm7 - // use mm0 mask copy to merge a & b - pand mm2, mm0 - pandn mm7, mm4 - pandn mm0, mm1 - paddw mm7, mm5 - paddw mm0, mm2 - // test ((pa <= pb)? pa:pb) <= pc - pcmpgtw mm7, mm6 // pab > pc? - pxor mm1, mm1 - pand mm3, mm7 - pandn mm7, mm0 - paddw mm7, mm3 - pxor mm0, mm0 - packuswb mm7, mm1 - movq mm3, [esi+ebx-8] // read c=Prior(x-bpp) bytes - pand mm7, ActiveMask - movq mm2, [esi + ebx] // load b=Prior(x) - paddb mm7, [edi + ebx] // add Paeth predictor with Raw(x) - punpckhbw mm3, mm0 // Unpack High bytes of c - movq [edi + ebx], mm7 // write back updated value - movq mm1, [edi+ebx-8] // read a=Raw(x-bpp) bytes - - // Do second set of 4 bytes - punpckhbw mm2, mm0 // Unpack High bytes of b - punpckhbw mm1, mm0 // Unpack High bytes of a - // pav = p - a = (a + b - c) - a = b - c - movq mm4, mm2 - // pbv = p - b = (a + b - c) - b = a - c - movq mm5, mm1 - psubw mm4, mm3 - pxor mm7, mm7 - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - movq mm6, mm4 - psubw mm5, mm3 - // pa = abs(p-a) = abs(pav) - // pb = abs(p-b) = abs(pbv) - // pc = abs(p-c) = abs(pcv) - pcmpgtw mm0, mm4 // Create mask pav bytes < 0 - paddw mm6, mm5 - pand mm0, mm4 // Only pav bytes < 0 in mm7 - pcmpgtw mm7, mm5 // Create mask pbv bytes < 0 - psubw mm4, mm0 - pand mm7, mm5 // Only pbv bytes < 0 in mm0 - psubw mm4, mm0 - psubw mm5, mm7 - pxor mm0, mm0 - pcmpgtw mm0, mm6 // Create mask pcv bytes < 0 - pand mm0, mm6 // Only pav bytes < 0 in mm7 - psubw mm5, mm7 - psubw mm6, mm0 - // test pa <= pb - movq mm7, mm4 - psubw mm6, mm0 - pcmpgtw mm7, mm5 // pa > pb? - movq mm0, mm7 - // use mm7 mask to merge pa & pb - pand mm5, mm7 - // use mm0 mask copy to merge a & b - pand mm2, mm0 - pandn mm7, mm4 - pandn mm0, mm1 - paddw mm7, mm5 - paddw mm0, mm2 - // test ((pa <= pb)? pa:pb) <= pc - pcmpgtw mm7, mm6 // pab > pc? - pxor mm1, mm1 - pand mm3, mm7 - pandn mm7, mm0 - pxor mm1, mm1 - paddw mm7, mm3 - pxor mm0, mm0 - // Step ex to next set of 8 bytes and repeat loop til done - add ebx, 8 - packuswb mm1, mm7 - paddb mm1, [edi + ebx - 8] // add Paeth predictor with Raw(x) - cmp ebx, MMXLength - movq [edi + ebx - 8], mm1 // write back updated value - // mm1 will be used as Raw(x-bpp) next loop - jb dpth8lp - } // end _asm block - } - break; - - case 1: // bpp = 1 - case 2: // bpp = 2 - default: // bpp > 8 - { - _asm { - mov ebx, diff - cmp ebx, FullLength - jnb dpthdend - mov edi, row - mov esi, prev_row - // Do Paeth decode for remaining bytes - mov edx, ebx - xor ecx, ecx // zero ecx before using cl & cx in loop below - sub edx, bpp // Set edx = ebx - bpp -dpthdlp: - xor eax, eax - // pav = p - a = (a + b - c) - a = b - c - mov al, [esi + ebx] // load Prior(x) into al - mov cl, [esi + edx] // load Prior(x-bpp) into cl - sub eax, ecx // subtract Prior(x-bpp) - mov patemp, eax // Save pav for later use - xor eax, eax - // pbv = p - b = (a + b - c) - b = a - c - mov al, [edi + edx] // load Raw(x-bpp) into al - sub eax, ecx // subtract Prior(x-bpp) - mov ecx, eax - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - add eax, patemp // pcv = pav + pbv - // pc = abs(pcv) - test eax, 0x80000000 - jz dpthdpca - neg eax // reverse sign of neg values -dpthdpca: - mov pctemp, eax // save pc for later use - // pb = abs(pbv) - test ecx, 0x80000000 - jz dpthdpba - neg ecx // reverse sign of neg values -dpthdpba: - mov pbtemp, ecx // save pb for later use - // pa = abs(pav) - mov eax, patemp - test eax, 0x80000000 - jz dpthdpaa - neg eax // reverse sign of neg values -dpthdpaa: - mov patemp, eax // save pa for later use - // test if pa <= pb - cmp eax, ecx - jna dpthdabb - // pa > pb; now test if pb <= pc - cmp ecx, pctemp - jna dpthdbbc - // pb > pc; Raw(x) = Paeth(x) + Prior(x-bpp) - mov cl, [esi + edx] // load Prior(x-bpp) into cl - jmp dpthdpaeth -dpthdbbc: - // pb <= pc; Raw(x) = Paeth(x) + Prior(x) - mov cl, [esi + ebx] // load Prior(x) into cl - jmp dpthdpaeth -dpthdabb: - // pa <= pb; now test if pa <= pc - cmp eax, pctemp - jna dpthdabc - // pa > pc; Raw(x) = Paeth(x) + Prior(x-bpp) - mov cl, [esi + edx] // load Prior(x-bpp) into cl - jmp dpthdpaeth -dpthdabc: - // pa <= pc; Raw(x) = Paeth(x) + Raw(x-bpp) - mov cl, [edi + edx] // load Raw(x-bpp) into cl -dpthdpaeth: - inc ebx - inc edx - // Raw(x) = (Paeth(x) + Paeth_Predictor( a, b, c )) mod 256 - add [edi + ebx - 1], cl - cmp ebx, FullLength - jb dpthdlp -dpthdend: - } // end _asm block - } - return; // No need to go further with this one - } // end switch ( bpp ) - _asm - { - // MMX acceleration complete now do clean-up - // Check if any remaining bytes left to decode - mov ebx, MMXLength - cmp ebx, FullLength - jnb dpthend - mov edi, row - mov esi, prev_row - // Do Paeth decode for remaining bytes - mov edx, ebx - xor ecx, ecx // zero ecx before using cl & cx in loop below - sub edx, bpp // Set edx = ebx - bpp -dpthlp2: - xor eax, eax - // pav = p - a = (a + b - c) - a = b - c - mov al, [esi + ebx] // load Prior(x) into al - mov cl, [esi + edx] // load Prior(x-bpp) into cl - sub eax, ecx // subtract Prior(x-bpp) - mov patemp, eax // Save pav for later use - xor eax, eax - // pbv = p - b = (a + b - c) - b = a - c - mov al, [edi + edx] // load Raw(x-bpp) into al - sub eax, ecx // subtract Prior(x-bpp) - mov ecx, eax - // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv - add eax, patemp // pcv = pav + pbv - // pc = abs(pcv) - test eax, 0x80000000 - jz dpthpca2 - neg eax // reverse sign of neg values -dpthpca2: - mov pctemp, eax // save pc for later use - // pb = abs(pbv) - test ecx, 0x80000000 - jz dpthpba2 - neg ecx // reverse sign of neg values -dpthpba2: - mov pbtemp, ecx // save pb for later use - // pa = abs(pav) - mov eax, patemp - test eax, 0x80000000 - jz dpthpaa2 - neg eax // reverse sign of neg values -dpthpaa2: - mov patemp, eax // save pa for later use - // test if pa <= pb - cmp eax, ecx - jna dpthabb2 - // pa > pb; now test if pb <= pc - cmp ecx, pctemp - jna dpthbbc2 - // pb > pc; Raw(x) = Paeth(x) + Prior(x-bpp) - mov cl, [esi + edx] // load Prior(x-bpp) into cl - jmp dpthpaeth2 -dpthbbc2: - // pb <= pc; Raw(x) = Paeth(x) + Prior(x) - mov cl, [esi + ebx] // load Prior(x) into cl - jmp dpthpaeth2 -dpthabb2: - // pa <= pb; now test if pa <= pc - cmp eax, pctemp - jna dpthabc2 - // pa > pc; Raw(x) = Paeth(x) + Prior(x-bpp) - mov cl, [esi + edx] // load Prior(x-bpp) into cl - jmp dpthpaeth2 -dpthabc2: - // pa <= pc; Raw(x) = Paeth(x) + Raw(x-bpp) - mov cl, [edi + edx] // load Raw(x-bpp) into cl -dpthpaeth2: - inc ebx - inc edx - // Raw(x) = (Paeth(x) + Paeth_Predictor( a, b, c )) mod 256 - add [edi + ebx - 1], cl - cmp ebx, FullLength - jb dpthlp2 -dpthend: - emms // End MMX instructions; prep for possible FP instrs. - } // end _asm block -} - -// Optimized code for PNG Sub filter decoder -void /* PRIVATE */ -png_read_filter_row_mmx_sub(png_row_infop row_info, png_bytep row) -{ - //int test; - int bpp; - png_uint_32 FullLength; - png_uint_32 MMXLength; - int diff; - - bpp = (row_info->pixel_depth + 7) >> 3; // Get # bytes per pixel - FullLength = row_info->rowbytes - bpp; // # of bytes to filter - _asm { - mov edi, row - mov esi, edi // lp = row - add edi, bpp // rp = row + bpp - xor eax, eax - // get # of bytes to alignment - mov diff, edi // take start of row - add diff, 0xf // add 7 + 8 to incr past - // alignment boundary - xor ebx, ebx - and diff, 0xfffffff8 // mask to alignment boundary - sub diff, edi // subtract from start ==> value - // ebx at alignment - jz dsubgo - // fix alignment -dsublp1: - mov al, [esi+ebx] - add [edi+ebx], al - inc ebx - cmp ebx, diff - jb dsublp1 -dsubgo: - mov ecx, FullLength - mov edx, ecx - sub edx, ebx // subtract alignment fix - and edx, 0x00000007 // calc bytes over mult of 8 - sub ecx, edx // drop over bytes from length - mov MMXLength, ecx - } // end _asm block - - // Now do the math for the rest of the row - switch ( bpp ) - { - case 3: - { - ActiveMask.use = 0x0000ffffff000000; - ShiftBpp.use = 24; // == 3 * 8 - ShiftRem.use = 40; // == 64 - 24 - _asm { - mov edi, row - movq mm7, ActiveMask // Load ActiveMask for 2nd active byte group - mov esi, edi // lp = row - add edi, bpp // rp = row + bpp - movq mm6, mm7 - mov ebx, diff - psllq mm6, ShiftBpp // Move mask in mm6 to cover 3rd active - // byte group - // PRIME the pump (load the first Raw(x-bpp) data set - movq mm1, [edi+ebx-8] -dsub3lp: - psrlq mm1, ShiftRem // Shift data for adding 1st bpp bytes - // no need for mask; shift clears inactive bytes - // Add 1st active group - movq mm0, [edi+ebx] - paddb mm0, mm1 - // Add 2nd active group - movq mm1, mm0 // mov updated Raws to mm1 - psllq mm1, ShiftBpp // shift data to position correctly - pand mm1, mm7 // mask to use only 2nd active group - paddb mm0, mm1 - // Add 3rd active group - movq mm1, mm0 // mov updated Raws to mm1 - psllq mm1, ShiftBpp // shift data to position correctly - pand mm1, mm6 // mask to use only 3rd active group - add ebx, 8 - paddb mm0, mm1 - cmp ebx, MMXLength - movq [edi+ebx-8], mm0 // Write updated Raws back to array - // Prep for doing 1st add at top of loop - movq mm1, mm0 - jb dsub3lp - } // end _asm block - } - break; - - case 1: - { - // Placed here just in case this is a duplicate of the - // non-MMX code for the SUB filter in png_read_filter_row below - // - // png_bytep rp; - // png_bytep lp; - // png_uint_32 i; - // bpp = (row_info->pixel_depth + 7) >> 3; - // for (i = (png_uint_32)bpp, rp = row + bpp, lp = row; - // i < row_info->rowbytes; i++, rp++, lp++) - // { - // *rp = (png_byte)(((int)(*rp) + (int)(*lp)) & 0xff); - // } - _asm { - mov ebx, diff - mov edi, row - cmp ebx, FullLength - jnb dsub1end - mov esi, edi // lp = row - xor eax, eax - add edi, bpp // rp = row + bpp -dsub1lp: - mov al, [esi+ebx] - add [edi+ebx], al - inc ebx - cmp ebx, FullLength - jb dsub1lp -dsub1end: - } // end _asm block - } - return; - - case 6: - case 7: - case 4: - case 5: - { - ShiftBpp.use = bpp << 3; - ShiftRem.use = 64 - ShiftBpp.use; - _asm { - mov edi, row - mov ebx, diff - mov esi, edi // lp = row - add edi, bpp // rp = row + bpp - // PRIME the pump (load the first Raw(x-bpp) data set - movq mm1, [edi+ebx-8] -dsub4lp: - psrlq mm1, ShiftRem // Shift data for adding 1st bpp bytes - // no need for mask; shift clears inactive bytes - movq mm0, [edi+ebx] - paddb mm0, mm1 - // Add 2nd active group - movq mm1, mm0 // mov updated Raws to mm1 - psllq mm1, ShiftBpp // shift data to position correctly - // there is no need for any mask - // since shift clears inactive bits/bytes - add ebx, 8 - paddb mm0, mm1 - cmp ebx, MMXLength - movq [edi+ebx-8], mm0 - movq mm1, mm0 // Prep for doing 1st add at top of loop - jb dsub4lp - } // end _asm block - } - break; - - case 2: - { - ActiveMask.use = 0x00000000ffff0000; - ShiftBpp.use = 16; // == 2 * 8 - ShiftRem.use = 48; // == 64 - 16 - _asm { - movq mm7, ActiveMask // Load ActiveMask for 2nd active byte group - mov ebx, diff - movq mm6, mm7 - mov edi, row - psllq mm6, ShiftBpp // Move mask in mm6 to cover 3rd active - // byte group - mov esi, edi // lp = row - movq mm5, mm6 - add edi, bpp // rp = row + bpp - psllq mm5, ShiftBpp // Move mask in mm5 to cover 4th active - // byte group - // PRIME the pump (load the first Raw(x-bpp) data set - movq mm1, [edi+ebx-8] -dsub2lp: - // Add 1st active group - psrlq mm1, ShiftRem // Shift data for adding 1st bpp bytes - // no need for mask; shift clears inactive - // bytes - movq mm0, [edi+ebx] - paddb mm0, mm1 - // Add 2nd active group - movq mm1, mm0 // mov updated Raws to mm1 - psllq mm1, ShiftBpp // shift data to position correctly - pand mm1, mm7 // mask to use only 2nd active group - paddb mm0, mm1 - // Add 3rd active group - movq mm1, mm0 // mov updated Raws to mm1 - psllq mm1, ShiftBpp // shift data to position correctly - pand mm1, mm6 // mask to use only 3rd active group - paddb mm0, mm1 - // Add 4th active group - movq mm1, mm0 // mov updated Raws to mm1 - psllq mm1, ShiftBpp // shift data to position correctly - pand mm1, mm5 // mask to use only 4th active group - add ebx, 8 - paddb mm0, mm1 - cmp ebx, MMXLength - movq [edi+ebx-8], mm0 // Write updated Raws back to array - movq mm1, mm0 // Prep for doing 1st add at top of loop - jb dsub2lp - } // end _asm block - } - break; - case 8: - { - _asm { - mov edi, row - mov ebx, diff - mov esi, edi // lp = row - add edi, bpp // rp = row + bpp - mov ecx, MMXLength - movq mm7, [edi+ebx-8] // PRIME the pump (load the first - // Raw(x-bpp) data set - and ecx, 0x0000003f // calc bytes over mult of 64 -dsub8lp: - movq mm0, [edi+ebx] // Load Sub(x) for 1st 8 bytes - paddb mm0, mm7 - movq mm1, [edi+ebx+8] // Load Sub(x) for 2nd 8 bytes - movq [edi+ebx], mm0 // Write Raw(x) for 1st 8 bytes - // Now mm0 will be used as Raw(x-bpp) for - // the 2nd group of 8 bytes. This will be - // repeated for each group of 8 bytes with - // the 8th group being used as the Raw(x-bpp) - // for the 1st group of the next loop. - paddb mm1, mm0 - movq mm2, [edi+ebx+16] // Load Sub(x) for 3rd 8 bytes - movq [edi+ebx+8], mm1 // Write Raw(x) for 2nd 8 bytes - paddb mm2, mm1 - movq mm3, [edi+ebx+24] // Load Sub(x) for 4th 8 bytes - movq [edi+ebx+16], mm2 // Write Raw(x) for 3rd 8 bytes - paddb mm3, mm2 - movq mm4, [edi+ebx+32] // Load Sub(x) for 5th 8 bytes - movq [edi+ebx+24], mm3 // Write Raw(x) for 4th 8 bytes - paddb mm4, mm3 - movq mm5, [edi+ebx+40] // Load Sub(x) for 6th 8 bytes - movq [edi+ebx+32], mm4 // Write Raw(x) for 5th 8 bytes - paddb mm5, mm4 - movq mm6, [edi+ebx+48] // Load Sub(x) for 7th 8 bytes - movq [edi+ebx+40], mm5 // Write Raw(x) for 6th 8 bytes - paddb mm6, mm5 - movq mm7, [edi+ebx+56] // Load Sub(x) for 8th 8 bytes - movq [edi+ebx+48], mm6 // Write Raw(x) for 7th 8 bytes - add ebx, 64 - paddb mm7, mm6 - cmp ebx, ecx - movq [edi+ebx-8], mm7 // Write Raw(x) for 8th 8 bytes - jb dsub8lp - cmp ebx, MMXLength - jnb dsub8lt8 -dsub8lpA: - movq mm0, [edi+ebx] - add ebx, 8 - paddb mm0, mm7 - cmp ebx, MMXLength - movq [edi+ebx-8], mm0 // use -8 to offset early add to ebx - movq mm7, mm0 // Move calculated Raw(x) data to mm1 to - // be the new Raw(x-bpp) for the next loop - jb dsub8lpA -dsub8lt8: - } // end _asm block - } - break; - - default: // bpp greater than 8 bytes - { - _asm { - mov ebx, diff - mov edi, row - mov esi, edi // lp = row - add edi, bpp // rp = row + bpp -dsubAlp: - movq mm0, [edi+ebx] - movq mm1, [esi+ebx] - add ebx, 8 - paddb mm0, mm1 - cmp ebx, MMXLength - movq [edi+ebx-8], mm0 // mov does not affect flags; -8 to offset - // add ebx - jb dsubAlp - } // end _asm block - } - break; - - } // end switch ( bpp ) - - _asm { - mov ebx, MMXLength - mov edi, row - cmp ebx, FullLength - jnb dsubend - mov esi, edi // lp = row - xor eax, eax - add edi, bpp // rp = row + bpp -dsublp2: - mov al, [esi+ebx] - add [edi+ebx], al - inc ebx - cmp ebx, FullLength - jb dsublp2 -dsubend: - emms // End MMX instructions; prep for possible FP instrs. - } // end _asm block -} - -// Optimized code for PNG Up filter decoder -void /* PRIVATE */ -png_read_filter_row_mmx_up(png_row_infop row_info, png_bytep row, - png_bytep prev_row) -{ - png_uint_32 len; - len = row_info->rowbytes; // # of bytes to filter - _asm { - mov edi, row - // get # of bytes to alignment - mov ecx, edi - xor ebx, ebx - add ecx, 0x7 - xor eax, eax - and ecx, 0xfffffff8 - mov esi, prev_row - sub ecx, edi - jz dupgo - // fix alignment -duplp1: - mov al, [edi+ebx] - add al, [esi+ebx] - inc ebx - cmp ebx, ecx - mov [edi + ebx-1], al // mov does not affect flags; -1 to offset inc ebx - jb duplp1 -dupgo: - mov ecx, len - mov edx, ecx - sub edx, ebx // subtract alignment fix - and edx, 0x0000003f // calc bytes over mult of 64 - sub ecx, edx // drop over bytes from length - // Unrolled loop - use all MMX registers and interleave to reduce - // number of branch instructions (loops) and reduce partial stalls -duploop: - movq mm1, [esi+ebx] - movq mm0, [edi+ebx] - movq mm3, [esi+ebx+8] - paddb mm0, mm1 - movq mm2, [edi+ebx+8] - movq [edi+ebx], mm0 - paddb mm2, mm3 - movq mm5, [esi+ebx+16] - movq [edi+ebx+8], mm2 - movq mm4, [edi+ebx+16] - movq mm7, [esi+ebx+24] - paddb mm4, mm5 - movq mm6, [edi+ebx+24] - movq [edi+ebx+16], mm4 - paddb mm6, mm7 - movq mm1, [esi+ebx+32] - movq [edi+ebx+24], mm6 - movq mm0, [edi+ebx+32] - movq mm3, [esi+ebx+40] - paddb mm0, mm1 - movq mm2, [edi+ebx+40] - movq [edi+ebx+32], mm0 - paddb mm2, mm3 - movq mm5, [esi+ebx+48] - movq [edi+ebx+40], mm2 - movq mm4, [edi+ebx+48] - movq mm7, [esi+ebx+56] - paddb mm4, mm5 - movq mm6, [edi+ebx+56] - movq [edi+ebx+48], mm4 - add ebx, 64 - paddb mm6, mm7 - cmp ebx, ecx - movq [edi+ebx-8], mm6 // (+56)movq does not affect flags; - // -8 to offset add ebx - jb duploop - - cmp edx, 0 // Test for bytes over mult of 64 - jz dupend - - - // 2 lines added by lcreeve@netins.net - // (mail 11 Jul 98 in png-implement list) - cmp edx, 8 //test for less than 8 bytes - jb duplt8 - - - add ecx, edx - and edx, 0x00000007 // calc bytes over mult of 8 - sub ecx, edx // drop over bytes from length - jz duplt8 - // Loop using MMX registers mm0 & mm1 to update 8 bytes simultaneously -duplpA: - movq mm1, [esi+ebx] - movq mm0, [edi+ebx] - add ebx, 8 - paddb mm0, mm1 - cmp ebx, ecx - movq [edi+ebx-8], mm0 // movq does not affect flags; -8 to offset add ebx - jb duplpA - cmp edx, 0 // Test for bytes over mult of 8 - jz dupend -duplt8: - xor eax, eax - add ecx, edx // move over byte count into counter - // Loop using x86 registers to update remaining bytes -duplp2: - mov al, [edi + ebx] - add al, [esi + ebx] - inc ebx - cmp ebx, ecx - mov [edi + ebx-1], al // mov does not affect flags; -1 to offset inc ebx - jb duplp2 -dupend: - // Conversion of filtered row completed - emms // End MMX instructions; prep for possible FP instrs. - } // end _asm block -} - - -// Optimized png_read_filter_row routines -void /* PRIVATE */ -png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep - row, png_bytep prev_row, int filter) -{ -#ifdef PNG_DEBUG - char filnm[10]; -#endif - - if (mmx_supported == 2) { - /* this should have happened in png_init_mmx_flags() already */ - png_warning(png_ptr, "asm_flags may not have been initialized"); - png_mmx_support(); - } - -#ifdef PNG_DEBUG - png_debug(1, "in png_read_filter_row\n"); - switch (filter) - { - case 0: sprintf(filnm, "none"); - break; - case 1: sprintf(filnm, "sub-%s", - (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB)? "MMX" : "x86"); - break; - case 2: sprintf(filnm, "up-%s", - (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP)? "MMX" : "x86"); - break; - case 3: sprintf(filnm, "avg-%s", - (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG)? "MMX" : "x86"); - break; - case 4: sprintf(filnm, "Paeth-%s", - (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH)? "MMX":"x86"); - break; - default: sprintf(filnm, "unknw"); - break; - } - png_debug2(0,"row=%5d, %s, ", png_ptr->row_number, filnm); - png_debug2(0, "pd=%2d, b=%d, ", (int)row_info->pixel_depth, - (int)((row_info->pixel_depth + 7) >> 3)); - png_debug1(0,"len=%8d, ", row_info->rowbytes); -#endif /* PNG_DEBUG */ - - switch (filter) - { - case PNG_FILTER_VALUE_NONE: - break; - - case PNG_FILTER_VALUE_SUB: - { - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB) && - (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) && - (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold)) - { - png_read_filter_row_mmx_sub(row_info, row); - } - else - { - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3; - png_bytep rp = row + bpp; - png_bytep lp = row; - - for (i = bpp; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + (int)(*lp++)) & 0xff); - rp++; - } - } - break; - } - - case PNG_FILTER_VALUE_UP: - { - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP) && - (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) && - (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold)) - { - png_read_filter_row_mmx_up(row_info, row, prev_row); - } - else - { - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - png_bytep rp = row; - png_bytep pp = prev_row; - - for (i = 0; i < istop; ++i) - { - *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff); - rp++; - } - } - break; - } - - case PNG_FILTER_VALUE_AVG: - { - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG) && - (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) && - (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold)) - { - png_read_filter_row_mmx_avg(row_info, row, prev_row); - } - else - { - png_uint_32 i; - png_bytep rp = row; - png_bytep pp = prev_row; - png_bytep lp = row; - png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3; - png_uint_32 istop = row_info->rowbytes - bpp; - - for (i = 0; i < bpp; i++) - { - *rp = (png_byte)(((int)(*rp) + - ((int)(*pp++) >> 1)) & 0xff); - rp++; - } - - for (i = 0; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + - ((int)(*pp++ + *lp++) >> 1)) & 0xff); - rp++; - } - } - break; - } - - case PNG_FILTER_VALUE_PAETH: - { - if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH) && - (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) && - (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold)) - { - png_read_filter_row_mmx_paeth(row_info, row, prev_row); - } - else - { - png_uint_32 i; - png_bytep rp = row; - png_bytep pp = prev_row; - png_bytep lp = row; - png_bytep cp = prev_row; - png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3; - png_uint_32 istop=row_info->rowbytes - bpp; - - for (i = 0; i < bpp; i++) - { - *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff); - rp++; - } - - for (i = 0; i < istop; i++) // use leftover rp,pp - { - int a, b, c, pa, pb, pc, p; - - a = *lp++; - b = *pp++; - c = *cp++; - - p = b - c; - pc = a - c; - -#ifdef PNG_USE_ABS - pa = abs(p); - pb = abs(pc); - pc = abs(p + pc); -#else - pa = p < 0 ? -p : p; - pb = pc < 0 ? -pc : pc; - pc = (p + pc) < 0 ? -(p + pc) : p + pc; -#endif - - /* - if (pa <= pb && pa <= pc) - p = a; - else if (pb <= pc) - p = b; - else - p = c; - */ - - p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c; - - *rp = (png_byte)(((int)(*rp) + p) & 0xff); - rp++; - } - } - break; - } - - default: - png_warning(png_ptr, "Ignoring bad row filter type"); - *row=0; - break; - } -} - -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED && PNG_USE_PNGVCRD */ diff --git a/collects/plot/src/all/pngwio.c b/collects/plot/src/all/pngwio.c deleted file mode 100644 index b39b4145f0..0000000000 --- a/collects/plot/src/all/pngwio.c +++ /dev/null @@ -1,228 +0,0 @@ - -/* pngwio.c - functions for data output - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file provides a location for all output. Users who need - * special handling are expected to write functions that have the same - * arguments as these and perform similar functions, but that possibly - * use different output methods. Note that you shouldn't change these - * functions, but rather write replacement functions and then change - * them at run time with png_set_write_fn(...). - */ - -#define PNG_INTERNAL -#include "png.h" -#ifdef PNG_WRITE_SUPPORTED - -/* Write the data to whatever output you are using. The default routine - writes to a file pointer. Note that this routine sometimes gets called - with very small lengths, so you should implement some kind of simple - buffering if you are using unbuffered writes. This should never be asked - to write more than 64K on a 16 bit machine. */ - -void /* PRIVATE */ -png_write_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - if (png_ptr->write_data_fn != NULL ) - (*(png_ptr->write_data_fn))(png_ptr, data, length); - else - png_error(png_ptr, "Call to NULL write function"); -} - -#if !defined(PNG_NO_STDIO) -/* This is the function that does the actual writing of data. If you are - not writing to a standard C stream, you should create a replacement - write_data function and use it at run time with png_set_write_fn(), rather - than changing the library. */ -#ifndef USE_FAR_KEYWORD -void PNGAPI -png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_uint_32 check; - -#if defined(_WIN32_WCE) - if ( !WriteFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) ) - check = 0; -#else - check = fwrite(data, 1, length, (png_FILE_p)(png_ptr->io_ptr)); -#endif - if (check != length) - png_error(png_ptr, "Write Error"); -} -#else -/* this is the model-independent version. Since the standard I/O library - can't handle far buffers in the medium and small models, we have to copy - the data. -*/ - -#define NEAR_BUF_SIZE 1024 -#define MIN(a,b) (a <= b ? a : b) - -void PNGAPI -png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_uint_32 check; - png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */ - png_FILE_p io_ptr; - - /* Check if data really is near. If so, use usual code. */ - near_data = (png_byte *)CVT_PTR_NOCHECK(data); - io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr); - if ((png_bytep)near_data == data) - { -#if defined(_WIN32_WCE) - if ( !WriteFile(io_ptr, near_data, length, &check, NULL) ) - check = 0; -#else - check = fwrite(near_data, 1, length, io_ptr); -#endif - } - else - { - png_byte buf[NEAR_BUF_SIZE]; - png_size_t written, remaining, err; - check = 0; - remaining = length; - do - { - written = MIN(NEAR_BUF_SIZE, remaining); - png_memcpy(buf, data, written); /* copy far buffer to near buffer */ -#if defined(_WIN32_WCE) - if ( !WriteFile(io_ptr, buf, written, &err, NULL) ) - err = 0; -#else - err = fwrite(buf, 1, written, io_ptr); -#endif - if (err != written) - break; - else - check += err; - data += written; - remaining -= written; - } - while (remaining != 0); - } - if (check != length) - png_error(png_ptr, "Write Error"); -} - -#endif -#endif - -/* This function is called to output any data pending writing (normally - to disk). After png_flush is called, there should be no data pending - writing in any buffers. */ -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -void /* PRIVATE */ -png_flush(png_structp png_ptr) -{ - if (png_ptr->output_flush_fn != NULL) - (*(png_ptr->output_flush_fn))(png_ptr); -} - -#if !defined(PNG_NO_STDIO) -void PNGAPI -png_default_flush(png_structp png_ptr) -{ -#if !defined(_WIN32_WCE) - png_FILE_p io_ptr; - io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr)); - if (io_ptr != NULL) - fflush(io_ptr); -#endif -} -#endif -#endif - -/* This function allows the application to supply new output functions for - libpng if standard C streams aren't being used. - - This function takes as its arguments: - png_ptr - pointer to a png output data structure - io_ptr - pointer to user supplied structure containing info about - the output functions. May be NULL. - write_data_fn - pointer to a new output function that takes as its - arguments a pointer to a png_struct, a pointer to - data to be written, and a 32-bit unsigned int that is - the number of bytes to be written. The new write - function should call png_error(png_ptr, "Error msg") - to exit and output any fatal error messages. - flush_data_fn - pointer to a new flush function that takes as its - arguments a pointer to a png_struct. After a call to - the flush function, there should be no data in any buffers - or pending transmission. If the output method doesn't do - any buffering of ouput, a function prototype must still be - supplied although it doesn't have to do anything. If - PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile - time, output_flush_fn will be ignored, although it must be - supplied for compatibility. */ -void PNGAPI -png_set_write_fn(png_structp png_ptr, png_voidp io_ptr, - png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn) -{ - png_ptr->io_ptr = io_ptr; - -#if !defined(PNG_NO_STDIO) - if (write_data_fn != NULL) - png_ptr->write_data_fn = write_data_fn; - else - png_ptr->write_data_fn = png_default_write_data; -#else - png_ptr->write_data_fn = write_data_fn; -#endif - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -#if !defined(PNG_NO_STDIO) - if (output_flush_fn != NULL) - png_ptr->output_flush_fn = output_flush_fn; - else - png_ptr->output_flush_fn = png_default_flush; -#else - png_ptr->output_flush_fn = output_flush_fn; -#endif -#endif /* PNG_WRITE_FLUSH_SUPPORTED */ - - /* It is an error to read while writing a png file */ - if (png_ptr->read_data_fn != NULL) - { - png_ptr->read_data_fn = NULL; - png_warning(png_ptr, - "Attempted to set both read_data_fn and write_data_fn in"); - png_warning(png_ptr, - "the same structure. Resetting read_data_fn to NULL."); - } -} - -#if defined(USE_FAR_KEYWORD) -#if defined(_MSC_VER) -void *png_far_to_near(png_structp png_ptr,png_voidp ptr, int check) -{ - void *near_ptr; - void FAR *far_ptr; - FP_OFF(near_ptr) = FP_OFF(ptr); - far_ptr = (void FAR *)near_ptr; - if(check != 0) - if(FP_SEG(ptr) != FP_SEG(far_ptr)) - png_error(png_ptr,"segment lost in conversion"); - return(near_ptr); -} -# else -void *png_far_to_near(png_structp png_ptr,png_voidp ptr, int check) -{ - void *near_ptr; - void FAR *far_ptr; - near_ptr = (void FAR *)ptr; - far_ptr = (void FAR *)near_ptr; - if(check != 0) - if(far_ptr != ptr) - png_error(png_ptr,"segment lost in conversion"); - return(near_ptr); -} -# endif -# endif -#endif /* PNG_WRITE_SUPPORTED */ diff --git a/collects/plot/src/all/pngwrite.c b/collects/plot/src/all/pngwrite.c deleted file mode 100644 index 10c9ea4068..0000000000 --- a/collects/plot/src/all/pngwrite.c +++ /dev/null @@ -1,1450 +0,0 @@ - -/* pngwrite.c - general routines to write a PNG file - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -/* get internal access to png.h */ -#define PNG_INTERNAL -#include "png.h" -#ifdef PNG_WRITE_SUPPORTED - -/* Writes all the PNG information. This is the suggested way to use the - * library. If you have a new chunk to add, make a function to write it, - * and put it in the correct location here. If you want the chunk written - * after the image data, put it in png_write_end(). I strongly encourage - * you to supply a PNG_INFO_ flag, and check info_ptr->valid before writing - * the chunk, as that will keep the code from breaking if you want to just - * write a plain PNG file. If you have long comments, I suggest writing - * them in png_write_end(), and compressing them. - */ -void PNGAPI -png_write_info_before_PLTE(png_structp png_ptr, png_infop info_ptr) -{ - png_debug(1, "in png_write_info_before_PLTE\n"); - if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE)) - { - png_write_sig(png_ptr); /* write PNG signature */ -#if defined(PNG_MNG_FEATURES_SUPPORTED) - if((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)&&(png_ptr->mng_features_permitted)) - { - png_warning(png_ptr,"MNG features are not allowed in a PNG datastream\n"); - png_ptr->mng_features_permitted=0; - } -#endif - /* write IHDR information. */ - png_write_IHDR(png_ptr, info_ptr->width, info_ptr->height, - info_ptr->bit_depth, info_ptr->color_type, info_ptr->compression_type, - info_ptr->filter_type, -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) - info_ptr->interlace_type); -#else - 0); -#endif - /* the rest of these check to see if the valid field has the appropriate - flag set, and if it does, writes the chunk. */ -#if defined(PNG_WRITE_gAMA_SUPPORTED) - if (info_ptr->valid & PNG_INFO_gAMA) - { -# ifdef PNG_FLOATING_POINT_SUPPORTED - png_write_gAMA(png_ptr, info_ptr->gamma); -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - png_write_gAMA_fixed(png_ptr, info_ptr->int_gamma); -# endif -#endif - } -#endif -#if defined(PNG_WRITE_sRGB_SUPPORTED) - if (info_ptr->valid & PNG_INFO_sRGB) - png_write_sRGB(png_ptr, (int)info_ptr->srgb_intent); -#endif -#if defined(PNG_WRITE_iCCP_SUPPORTED) - if (info_ptr->valid & PNG_INFO_iCCP) - png_write_iCCP(png_ptr, info_ptr->iccp_name, PNG_COMPRESSION_TYPE_BASE, - info_ptr->iccp_profile, (int)info_ptr->iccp_proflen); -#endif -#if defined(PNG_WRITE_sBIT_SUPPORTED) - if (info_ptr->valid & PNG_INFO_sBIT) - png_write_sBIT(png_ptr, &(info_ptr->sig_bit), info_ptr->color_type); -#endif -#if defined(PNG_WRITE_cHRM_SUPPORTED) - if (info_ptr->valid & PNG_INFO_cHRM) - { -#ifdef PNG_FLOATING_POINT_SUPPORTED - png_write_cHRM(png_ptr, - info_ptr->x_white, info_ptr->y_white, - info_ptr->x_red, info_ptr->y_red, - info_ptr->x_green, info_ptr->y_green, - info_ptr->x_blue, info_ptr->y_blue); -#else -# ifdef PNG_FIXED_POINT_SUPPORTED - png_write_cHRM_fixed(png_ptr, - info_ptr->int_x_white, info_ptr->int_y_white, - info_ptr->int_x_red, info_ptr->int_y_red, - info_ptr->int_x_green, info_ptr->int_y_green, - info_ptr->int_x_blue, info_ptr->int_y_blue); -# endif -#endif - } -#endif -#if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) - if (info_ptr->unknown_chunks_num) - { - png_unknown_chunk *up; - - png_debug(5, "writing extra chunks\n"); - - for (up = info_ptr->unknown_chunks; - up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num; - up++) - { - int keep=png_handle_as_unknown(png_ptr, up->name); - if (keep != HANDLE_CHUNK_NEVER && - up->location && (!(up->location & PNG_HAVE_PLTE)) && - ((up->name[3] & 0x20) || keep == HANDLE_CHUNK_ALWAYS || - (png_ptr->flags & PNG_FLAG_KEEP_UNSAFE_CHUNKS))) - { - png_write_chunk(png_ptr, up->name, up->data, up->size); - } - } - } -#endif - png_ptr->mode |= PNG_WROTE_INFO_BEFORE_PLTE; - } -} - -void PNGAPI -png_write_info(png_structp png_ptr, png_infop info_ptr) -{ -#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED) - int i; -#endif - - png_debug(1, "in png_write_info\n"); - - png_write_info_before_PLTE(png_ptr, info_ptr); - - if (info_ptr->valid & PNG_INFO_PLTE) - png_write_PLTE(png_ptr, info_ptr->palette, - (png_uint_32)info_ptr->num_palette); - else if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - png_error(png_ptr, "Valid palette required for paletted images\n"); - -#if defined(PNG_WRITE_tRNS_SUPPORTED) - if (info_ptr->valid & PNG_INFO_tRNS) - { -#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) - /* invert the alpha channel (in tRNS) */ - if ((png_ptr->transformations & PNG_INVERT_ALPHA) && - info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - int j; - for (j=0; j<(int)info_ptr->num_trans; j++) - info_ptr->trans[j] = (png_byte)(255 - info_ptr->trans[j]); - } -#endif - png_write_tRNS(png_ptr, info_ptr->trans, &(info_ptr->trans_values), - info_ptr->num_trans, info_ptr->color_type); - } -#endif -#if defined(PNG_WRITE_bKGD_SUPPORTED) - if (info_ptr->valid & PNG_INFO_bKGD) - png_write_bKGD(png_ptr, &(info_ptr->background), info_ptr->color_type); -#endif -#if defined(PNG_WRITE_hIST_SUPPORTED) - if (info_ptr->valid & PNG_INFO_hIST) - png_write_hIST(png_ptr, info_ptr->hist, info_ptr->num_palette); -#endif -#if defined(PNG_WRITE_oFFs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_oFFs) - png_write_oFFs(png_ptr, info_ptr->x_offset, info_ptr->y_offset, - info_ptr->offset_unit_type); -#endif -#if defined(PNG_WRITE_pCAL_SUPPORTED) - if (info_ptr->valid & PNG_INFO_pCAL) - png_write_pCAL(png_ptr, info_ptr->pcal_purpose, info_ptr->pcal_X0, - info_ptr->pcal_X1, info_ptr->pcal_type, info_ptr->pcal_nparams, - info_ptr->pcal_units, info_ptr->pcal_params); -#endif -#if defined(PNG_WRITE_sCAL_SUPPORTED) - if (info_ptr->valid & PNG_INFO_sCAL) -#if defined(PNG_FLOATING_POINT_SUPPORTED) && !defined(PNG_NO_STDIO) - png_write_sCAL(png_ptr, (int)info_ptr->scal_unit, - info_ptr->scal_pixel_width, info_ptr->scal_pixel_height); -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - png_write_sCAL_s(png_ptr, (int)info_ptr->scal_unit, - info_ptr->scal_s_width, info_ptr->scal_s_height); -#else - png_warning(png_ptr, - "png_write_sCAL not supported; sCAL chunk not written.\n"); -#endif -#endif -#endif -#if defined(PNG_WRITE_pHYs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_pHYs) - png_write_pHYs(png_ptr, info_ptr->x_pixels_per_unit, - info_ptr->y_pixels_per_unit, info_ptr->phys_unit_type); -#endif -#if defined(PNG_WRITE_tIME_SUPPORTED) - if (info_ptr->valid & PNG_INFO_tIME) - { - png_write_tIME(png_ptr, &(info_ptr->mod_time)); - png_ptr->mode |= PNG_WROTE_tIME; - } -#endif -#if defined(PNG_WRITE_sPLT_SUPPORTED) - if (info_ptr->valid & PNG_INFO_sPLT) - for (i = 0; i < (int)info_ptr->splt_palettes_num; i++) - png_write_sPLT(png_ptr, info_ptr->splt_palettes + i); -#endif -#if defined(PNG_WRITE_TEXT_SUPPORTED) - /* Check to see if we need to write text chunks */ - for (i = 0; i < info_ptr->num_text; i++) - { - png_debug2(2, "Writing header text chunk %d, type %d\n", i, - info_ptr->text[i].compression); - /* an internationalized chunk? */ - if (info_ptr->text[i].compression > 0) - { -#if defined(PNG_WRITE_iTXt_SUPPORTED) - /* write international chunk */ - png_write_iTXt(png_ptr, - info_ptr->text[i].compression, - info_ptr->text[i].key, - info_ptr->text[i].lang, - info_ptr->text[i].lang_key, - info_ptr->text[i].text); -#else - png_warning(png_ptr, "Unable to write international text\n"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; - } - /* If we want a compressed text chunk */ - else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_zTXt) - { -#if defined(PNG_WRITE_zTXt_SUPPORTED) - /* write compressed chunk */ - png_write_zTXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, 0, - info_ptr->text[i].compression); -#else - png_warning(png_ptr, "Unable to write compressed text\n"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; - } - else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE) - { -#if defined(PNG_WRITE_tEXt_SUPPORTED) - /* write uncompressed chunk */ - png_write_tEXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, - 0); -#else - png_warning(png_ptr, "Unable to write uncompressed text\n"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; - } - } -#endif -#if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) - if (info_ptr->unknown_chunks_num) - { - png_unknown_chunk *up; - - png_debug(5, "writing extra chunks\n"); - - for (up = info_ptr->unknown_chunks; - up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num; - up++) - { - int keep=png_handle_as_unknown(png_ptr, up->name); - if (keep != HANDLE_CHUNK_NEVER && - up->location && (up->location & PNG_HAVE_PLTE) && - !(up->location & PNG_HAVE_IDAT) && - ((up->name[3] & 0x20) || keep == HANDLE_CHUNK_ALWAYS || - (png_ptr->flags & PNG_FLAG_KEEP_UNSAFE_CHUNKS))) - { - png_write_chunk(png_ptr, up->name, up->data, up->size); - } - } - } -#endif -} - -/* Writes the end of the PNG file. If you don't want to write comments or - * time information, you can pass NULL for info. If you already wrote these - * in png_write_info(), do not write them again here. If you have long - * comments, I suggest writing them here, and compressing them. - */ -void PNGAPI -png_write_end(png_structp png_ptr, png_infop info_ptr) -{ - png_debug(1, "in png_write_end\n"); - if (!(png_ptr->mode & PNG_HAVE_IDAT)) - png_error(png_ptr, "No IDATs written into file"); - - /* see if user wants us to write information chunks */ - if (info_ptr != NULL) - { -#if defined(PNG_WRITE_TEXT_SUPPORTED) - int i; /* local index variable */ -#endif -#if defined(PNG_WRITE_tIME_SUPPORTED) - /* check to see if user has supplied a time chunk */ - if ((info_ptr->valid & PNG_INFO_tIME) && - !(png_ptr->mode & PNG_WROTE_tIME)) - png_write_tIME(png_ptr, &(info_ptr->mod_time)); -#endif -#if defined(PNG_WRITE_TEXT_SUPPORTED) - /* loop through comment chunks */ - for (i = 0; i < info_ptr->num_text; i++) - { - png_debug2(2, "Writing trailer text chunk %d, type %d\n", i, - info_ptr->text[i].compression); - /* an internationalized chunk? */ - if (info_ptr->text[i].compression > 0) - { -#if defined(PNG_WRITE_iTXt_SUPPORTED) - /* write international chunk */ - png_write_iTXt(png_ptr, - info_ptr->text[i].compression, - info_ptr->text[i].key, - info_ptr->text[i].lang, - info_ptr->text[i].lang_key, - info_ptr->text[i].text); -#else - png_warning(png_ptr, "Unable to write international text\n"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; - } - else if (info_ptr->text[i].compression >= PNG_TEXT_COMPRESSION_zTXt) - { -#if defined(PNG_WRITE_zTXt_SUPPORTED) - /* write compressed chunk */ - png_write_zTXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, 0, - info_ptr->text[i].compression); -#else - png_warning(png_ptr, "Unable to write compressed text\n"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; - } - else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE) - { -#if defined(PNG_WRITE_tEXt_SUPPORTED) - /* write uncompressed chunk */ - png_write_tEXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, 0); -#else - png_warning(png_ptr, "Unable to write uncompressed text\n"); -#endif - - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; - } - } -#endif -#if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) - if (info_ptr->unknown_chunks_num) - { - png_unknown_chunk *up; - - png_debug(5, "writing extra chunks\n"); - - for (up = info_ptr->unknown_chunks; - up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num; - up++) - { - int keep=png_handle_as_unknown(png_ptr, up->name); - if (keep != HANDLE_CHUNK_NEVER && - up->location && (up->location & PNG_AFTER_IDAT) && - ((up->name[3] & 0x20) || keep == HANDLE_CHUNK_ALWAYS || - (png_ptr->flags & PNG_FLAG_KEEP_UNSAFE_CHUNKS))) - { - png_write_chunk(png_ptr, up->name, up->data, up->size); - } - } - } -#endif - } - - png_ptr->mode |= PNG_AFTER_IDAT; - - /* write end of PNG file */ - png_write_IEND(png_ptr); -#if 0 -/* This flush, added in libpng-1.0.8, causes some applications to crash - because they do not set png_ptr->output_flush_fn */ - png_flush(png_ptr); -#endif -} - -#if defined(PNG_WRITE_tIME_SUPPORTED) -#if !defined(_WIN32_WCE) -/* "time.h" functions are not supported on WindowsCE */ -void PNGAPI -png_convert_from_struct_tm(png_timep ptime, struct tm FAR * ttime) -{ - png_debug(1, "in png_convert_from_struct_tm\n"); - ptime->year = (png_uint_16)(1900 + ttime->tm_year); - ptime->month = (png_byte)(ttime->tm_mon + 1); - ptime->day = (png_byte)ttime->tm_mday; - ptime->hour = (png_byte)ttime->tm_hour; - ptime->minute = (png_byte)ttime->tm_min; - ptime->second = (png_byte)ttime->tm_sec; -} - -void PNGAPI -png_convert_from_time_t(png_timep ptime, time_t ttime) -{ - struct tm *tbuf; - - png_debug(1, "in png_convert_from_time_t\n"); - tbuf = gmtime(&ttime); - png_convert_from_struct_tm(ptime, tbuf); -} -#endif -#endif - -/* Initialize png_ptr structure, and allocate any memory needed */ -png_structp PNGAPI -png_create_write_struct(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn) -{ -#ifdef PNG_USER_MEM_SUPPORTED - return (png_create_write_struct_2(user_png_ver, error_ptr, error_fn, - warn_fn, png_voidp_NULL, png_malloc_ptr_NULL, png_free_ptr_NULL)); -} - -/* Alternate initialize png_ptr structure, and allocate any memory needed */ -png_structp PNGAPI -png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn) -{ -#endif /* PNG_USER_MEM_SUPPORTED */ - png_structp png_ptr; -#ifdef PNG_SETJMP_SUPPORTED -#ifdef USE_FAR_KEYWORD - jmp_buf jmpbuf; -#endif -#endif - int i; - png_debug(1, "in png_create_write_struct\n"); -#ifdef PNG_USER_MEM_SUPPORTED - png_ptr = (png_structp)png_create_struct_2(PNG_STRUCT_PNG, - (png_malloc_ptr)malloc_fn, (png_voidp)mem_ptr); -#else - png_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG); -#endif /* PNG_USER_MEM_SUPPORTED */ - if (png_ptr == NULL) - return (NULL); - -#if !defined(PNG_1_0_X) -#ifdef PNG_ASSEMBLER_CODE_SUPPORTED - png_init_mmx_flags(png_ptr); /* 1.2.0 addition */ -#endif -#endif /* PNG_1_0_X */ - -#ifdef PNG_SETJMP_SUPPORTED -#ifdef USE_FAR_KEYWORD - if (setjmp(jmpbuf)) -#else - if (setjmp(png_ptr->jmpbuf)) -#endif - { - png_free(png_ptr, png_ptr->zbuf); - png_ptr->zbuf=NULL; - png_destroy_struct(png_ptr); - return (NULL); - } -#ifdef USE_FAR_KEYWORD - png_memcpy(png_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf)); -#endif -#endif - -#ifdef PNG_USER_MEM_SUPPORTED - png_set_mem_fn(png_ptr, mem_ptr, malloc_fn, free_fn); -#endif /* PNG_USER_MEM_SUPPORTED */ - png_set_error_fn(png_ptr, error_ptr, error_fn, warn_fn); - - i=0; - do - { - if(user_png_ver[i] != png_libpng_ver[i]) - png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; - } while (png_libpng_ver[i++]); - - if (png_ptr->flags & PNG_FLAG_LIBRARY_MISMATCH) - { - /* Libpng 0.90 and later are binary incompatible with libpng 0.89, so - * we must recompile any applications that use any older library version. - * For versions after libpng 1.0, we will be compatible, so we need - * only check the first digit. - */ - if (user_png_ver == NULL || user_png_ver[0] != png_libpng_ver[0] || - (user_png_ver[0] == '1' && user_png_ver[2] != png_libpng_ver[2]) || - (user_png_ver[0] == '0' && user_png_ver[2] < '9')) - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char msg[80]; - if (user_png_ver) - { - sprintf(msg, "Application was compiled with png.h from libpng-%.20s", - user_png_ver); - png_warning(png_ptr, msg); - } - sprintf(msg, "Application is running with png.c from libpng-%.20s", - png_libpng_ver); - png_warning(png_ptr, msg); -#endif -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags=0; -#endif - png_error(png_ptr, - "Incompatible libpng version in application and library"); - } - } - - /* initialize zbuf - compression buffer */ - png_ptr->zbuf_size = PNG_ZBUF_SIZE; - png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, - (png_uint_32)png_ptr->zbuf_size); - - png_set_write_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL, - png_flush_ptr_NULL); - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - png_set_filter_heuristics(png_ptr, PNG_FILTER_HEURISTIC_DEFAULT, - 1, png_doublep_NULL, png_doublep_NULL); -#endif - -#ifdef PNG_SETJMP_SUPPORTED -/* Applications that neglect to set up their own setjmp() and then encounter - a png_error() will longjmp here. Since the jmpbuf is then meaningless we - abort instead of returning. */ -#ifdef USE_FAR_KEYWORD - if (setjmp(jmpbuf)) - PNG_ABORT(); - png_memcpy(png_ptr->jmpbuf,jmpbuf,sizeof(jmp_buf)); -#else - if (setjmp(png_ptr->jmpbuf)) - PNG_ABORT(); -#endif -#endif - return (png_ptr); -} - -/* Initialize png_ptr structure, and allocate any memory needed */ -#undef png_write_init -void PNGAPI -png_write_init(png_structp png_ptr) -{ - /* We only come here via pre-1.0.7-compiled applications */ - png_write_init_2(png_ptr, "1.0.6 or earlier", 0, 0); -} - -void PNGAPI -png_write_init_2(png_structp png_ptr, png_const_charp user_png_ver, - png_size_t png_struct_size, png_size_t png_info_size) -{ - /* We only come here via pre-1.0.12-compiled applications */ -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - if(sizeof(png_struct) > png_struct_size || sizeof(png_info) > png_info_size) - { - char msg[80]; - png_ptr->warning_fn=NULL; - if (user_png_ver) - { - sprintf(msg, "Application was compiled with png.h from libpng-%.20s", - user_png_ver); - png_warning(png_ptr, msg); - } - sprintf(msg, "Application is running with png.c from libpng-%.20s", - png_libpng_ver); - png_warning(png_ptr, msg); - } -#endif - if(sizeof(png_struct) > png_struct_size) - { - png_ptr->error_fn=NULL; -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags=0; -#endif - png_error(png_ptr, - "The png struct allocated by the application for writing is too small."); - } - if(sizeof(png_info) > png_info_size) - { - png_ptr->error_fn=NULL; -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags=0; -#endif - png_error(png_ptr, - "The info struct allocated by the application for writing is too small."); - } - png_write_init_3(&png_ptr, user_png_ver, png_struct_size); -} - - -void PNGAPI -png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver, - png_size_t png_struct_size) -{ - png_structp png_ptr=*ptr_ptr; -#ifdef PNG_SETJMP_SUPPORTED - jmp_buf tmp_jmp; /* to save current jump buffer */ -#endif - int i = 0; - do - { - if (user_png_ver[i] != png_libpng_ver[i]) - { -#ifdef PNG_LEGACY_SUPPORTED - png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; -#else - png_ptr->warning_fn=NULL; - png_warning(png_ptr, - "Application uses deprecated png_write_init() and should be recompiled."); - break; -#endif - } - } while (png_libpng_ver[i++]); - - png_debug(1, "in png_write_init_3\n"); - -#ifdef PNG_SETJMP_SUPPORTED - /* save jump buffer and error functions */ - png_memcpy(tmp_jmp, png_ptr->jmpbuf, sizeof (jmp_buf)); -#endif - - if (sizeof(png_struct) > png_struct_size) - { - png_destroy_struct(png_ptr); - png_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG); - *ptr_ptr = png_ptr; - } - - /* reset all variables to 0 */ - png_memset(png_ptr, 0, sizeof (png_struct)); - -#if !defined(PNG_1_0_X) -#ifdef PNG_ASSEMBLER_CODE_SUPPORTED - png_init_mmx_flags(png_ptr); /* 1.2.0 addition */ -#endif -#endif /* PNG_1_0_X */ - -#ifdef PNG_SETJMP_SUPPORTED - /* restore jump buffer */ - png_memcpy(png_ptr->jmpbuf, tmp_jmp, sizeof (jmp_buf)); -#endif - - png_set_write_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL, - png_flush_ptr_NULL); - - /* initialize zbuf - compression buffer */ - png_ptr->zbuf_size = PNG_ZBUF_SIZE; - png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, - (png_uint_32)png_ptr->zbuf_size); - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - png_set_filter_heuristics(png_ptr, PNG_FILTER_HEURISTIC_DEFAULT, - 1, png_doublep_NULL, png_doublep_NULL); -#endif -} - -/* Write a few rows of image data. If the image is interlaced, - * either you will have to write the 7 sub images, or, if you - * have called png_set_interlace_handling(), you will have to - * "write" the image seven times. - */ -void PNGAPI -png_write_rows(png_structp png_ptr, png_bytepp row, - png_uint_32 num_rows) -{ - png_uint_32 i; /* row counter */ - png_bytepp rp; /* row pointer */ - - png_debug(1, "in png_write_rows\n"); - /* loop through the rows */ - for (i = 0, rp = row; i < num_rows; i++, rp++) - { - png_write_row(png_ptr, *rp); - } -} - -/* Write the image. You only need to call this function once, even - * if you are writing an interlaced image. - */ -void PNGAPI -png_write_image(png_structp png_ptr, png_bytepp image) -{ - png_uint_32 i; /* row index */ - int pass, num_pass; /* pass variables */ - png_bytepp rp; /* points to current row */ - - png_debug(1, "in png_write_image\n"); -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) - /* intialize interlace handling. If image is not interlaced, - this will set pass to 1 */ - num_pass = png_set_interlace_handling(png_ptr); -#else - num_pass = 1; -#endif - /* loop through passes */ - for (pass = 0; pass < num_pass; pass++) - { - /* loop through image */ - for (i = 0, rp = image; i < png_ptr->height; i++, rp++) - { - png_write_row(png_ptr, *rp); - } - } -} - -/* called by user to write a row of image data */ -void PNGAPI -png_write_row(png_structp png_ptr, png_bytep row) -{ - png_debug2(1, "in png_write_row (row %ld, pass %d)\n", - png_ptr->row_number, png_ptr->pass); - /* initialize transformations and other stuff if first time */ - if (png_ptr->row_number == 0 && png_ptr->pass == 0) - { - /* make sure we wrote the header info */ - if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE)) - png_error(png_ptr, - "png_write_info was never called before png_write_row."); - - /* check for transforms that have been set but were defined out */ -#if !defined(PNG_WRITE_INVERT_SUPPORTED) && defined(PNG_READ_INVERT_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_MONO) - png_warning(png_ptr, "PNG_WRITE_INVERT_SUPPORTED is not defined."); -#endif -#if !defined(PNG_WRITE_FILLER_SUPPORTED) && defined(PNG_READ_FILLER_SUPPORTED) - if (png_ptr->transformations & PNG_FILLER) - png_warning(png_ptr, "PNG_WRITE_FILLER_SUPPORTED is not defined."); -#endif -#if !defined(PNG_WRITE_PACKSWAP_SUPPORTED) && defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - png_warning(png_ptr, "PNG_WRITE_PACKSWAP_SUPPORTED is not defined."); -#endif -#if !defined(PNG_WRITE_PACK_SUPPORTED) && defined(PNG_READ_PACK_SUPPORTED) - if (png_ptr->transformations & PNG_PACK) - png_warning(png_ptr, "PNG_WRITE_PACK_SUPPORTED is not defined."); -#endif -#if !defined(PNG_WRITE_SHIFT_SUPPORTED) && defined(PNG_READ_SHIFT_SUPPORTED) - if (png_ptr->transformations & PNG_SHIFT) - png_warning(png_ptr, "PNG_WRITE_SHIFT_SUPPORTED is not defined."); -#endif -#if !defined(PNG_WRITE_BGR_SUPPORTED) && defined(PNG_READ_BGR_SUPPORTED) - if (png_ptr->transformations & PNG_BGR) - png_warning(png_ptr, "PNG_WRITE_BGR_SUPPORTED is not defined."); -#endif -#if !defined(PNG_WRITE_SWAP_SUPPORTED) && defined(PNG_READ_SWAP_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_BYTES) - png_warning(png_ptr, "PNG_WRITE_SWAP_SUPPORTED is not defined."); -#endif - - png_write_start_row(png_ptr); - } - -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) - /* if interlaced and not interested in row, return */ - if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE)) - { - switch (png_ptr->pass) - { - case 0: - if (png_ptr->row_number & 0x07) - { - png_write_finish_row(png_ptr); - return; - } - break; - case 1: - if ((png_ptr->row_number & 0x07) || png_ptr->width < 5) - { - png_write_finish_row(png_ptr); - return; - } - break; - case 2: - if ((png_ptr->row_number & 0x07) != 4) - { - png_write_finish_row(png_ptr); - return; - } - break; - case 3: - if ((png_ptr->row_number & 0x03) || png_ptr->width < 3) - { - png_write_finish_row(png_ptr); - return; - } - break; - case 4: - if ((png_ptr->row_number & 0x03) != 2) - { - png_write_finish_row(png_ptr); - return; - } - break; - case 5: - if ((png_ptr->row_number & 0x01) || png_ptr->width < 2) - { - png_write_finish_row(png_ptr); - return; - } - break; - case 6: - if (!(png_ptr->row_number & 0x01)) - { - png_write_finish_row(png_ptr); - return; - } - break; - } - } -#endif - - /* set up row info for transformations */ - png_ptr->row_info.color_type = png_ptr->color_type; - png_ptr->row_info.width = png_ptr->usr_width; - png_ptr->row_info.channels = png_ptr->usr_channels; - png_ptr->row_info.bit_depth = png_ptr->usr_bit_depth; - png_ptr->row_info.pixel_depth = (png_byte)(png_ptr->row_info.bit_depth * - png_ptr->row_info.channels); - - png_ptr->row_info.rowbytes = ((png_ptr->row_info.width * - (png_uint_32)png_ptr->row_info.pixel_depth + 7) >> 3); - - png_debug1(3, "row_info->color_type = %d\n", png_ptr->row_info.color_type); - png_debug1(3, "row_info->width = %lu\n", png_ptr->row_info.width); - png_debug1(3, "row_info->channels = %d\n", png_ptr->row_info.channels); - png_debug1(3, "row_info->bit_depth = %d\n", png_ptr->row_info.bit_depth); - png_debug1(3, "row_info->pixel_depth = %d\n", png_ptr->row_info.pixel_depth); - png_debug1(3, "row_info->rowbytes = %lu\n", png_ptr->row_info.rowbytes); - - /* Copy user's row into buffer, leaving room for filter byte. */ - png_memcpy_check(png_ptr, png_ptr->row_buf + 1, row, - png_ptr->row_info.rowbytes); - -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) - /* handle interlacing */ - if (png_ptr->interlaced && png_ptr->pass < 6 && - (png_ptr->transformations & PNG_INTERLACE)) - { - png_do_write_interlace(&(png_ptr->row_info), - png_ptr->row_buf + 1, png_ptr->pass); - /* this should always get caught above, but still ... */ - if (!(png_ptr->row_info.width)) - { - png_write_finish_row(png_ptr); - return; - } - } -#endif - - /* handle other transformations */ - if (png_ptr->transformations) - png_do_write_transformations(png_ptr); - -#if defined(PNG_MNG_FEATURES_SUPPORTED) - /* Write filter_method 64 (intrapixel differencing) only if - * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and - * 2. Libpng did not write a PNG signature (this filter_method is only - * used in PNG datastreams that are embedded in MNG datastreams) and - * 3. The application called png_permit_mng_features with a mask that - * included PNG_FLAG_MNG_FILTER_64 and - * 4. The filter_method is 64 and - * 5. The color_type is RGB or RGBA - */ - if((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING)) - { - /* Intrapixel differencing */ - png_do_write_intrapixel(&(png_ptr->row_info), png_ptr->row_buf + 1); - } -#endif - - /* Find a filter if necessary, filter the row and write it out. */ - png_write_find_filter(png_ptr, &(png_ptr->row_info)); - - if (png_ptr->write_row_fn != NULL) - (*(png_ptr->write_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass); -} - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -/* Set the automatic flush interval or 0 to turn flushing off */ -void PNGAPI -png_set_flush(png_structp png_ptr, int nrows) -{ - png_debug(1, "in png_set_flush\n"); - png_ptr->flush_dist = (nrows < 0 ? 0 : nrows); -} - -/* flush the current output buffers now */ -void PNGAPI -png_write_flush(png_structp png_ptr) -{ - int wrote_IDAT; - - png_debug(1, "in png_write_flush\n"); - /* We have already written out all of the data */ - if (png_ptr->row_number >= png_ptr->num_rows) - return; - - do - { - int ret; - - /* compress the data */ - ret = deflate(&png_ptr->zstream, Z_SYNC_FLUSH); - wrote_IDAT = 0; - - /* check for compression errors */ - if (ret != Z_OK) - { - if (png_ptr->zstream.msg != NULL) - png_error(png_ptr, png_ptr->zstream.msg); - else - png_error(png_ptr, "zlib error"); - } - - if (!(png_ptr->zstream.avail_out)) - { - /* write the IDAT and reset the zlib output buffer */ - png_write_IDAT(png_ptr, png_ptr->zbuf, - png_ptr->zbuf_size); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - wrote_IDAT = 1; - } - } while(wrote_IDAT == 1); - - /* If there is any data left to be output, write it into a new IDAT */ - if (png_ptr->zbuf_size != png_ptr->zstream.avail_out) - { - /* write the IDAT and reset the zlib output buffer */ - png_write_IDAT(png_ptr, png_ptr->zbuf, - png_ptr->zbuf_size - png_ptr->zstream.avail_out); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - } - png_ptr->flush_rows = 0; - png_flush(png_ptr); -} -#endif /* PNG_WRITE_FLUSH_SUPPORTED */ - -/* free all memory used by the write */ -void PNGAPI -png_destroy_write_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr) -{ - png_structp png_ptr = NULL; - png_infop info_ptr = NULL; -#ifdef PNG_USER_MEM_SUPPORTED - png_free_ptr free_fn = NULL; - png_voidp mem_ptr = NULL; -#endif - - png_debug(1, "in png_destroy_write_struct\n"); - if (png_ptr_ptr != NULL) - { - png_ptr = *png_ptr_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - free_fn = png_ptr->free_fn; - mem_ptr = png_ptr->mem_ptr; -#endif - } - - if (info_ptr_ptr != NULL) - info_ptr = *info_ptr_ptr; - - if (info_ptr != NULL) - { - png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1); - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - if (png_ptr->num_chunk_list) - { - png_free(png_ptr, png_ptr->chunk_list); - png_ptr->chunk_list=NULL; - png_ptr->num_chunk_list=0; - } -#endif - -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)info_ptr, (png_free_ptr)free_fn, - (png_voidp)mem_ptr); -#else - png_destroy_struct((png_voidp)info_ptr); -#endif - *info_ptr_ptr = NULL; - } - - if (png_ptr != NULL) - { - png_write_destroy(png_ptr); -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)png_ptr, (png_free_ptr)free_fn, - (png_voidp)mem_ptr); -#else - png_destroy_struct((png_voidp)png_ptr); -#endif - *png_ptr_ptr = NULL; - } -} - - -/* Free any memory used in png_ptr struct (old method) */ -void /* PRIVATE */ -png_write_destroy(png_structp png_ptr) -{ -#ifdef PNG_SETJMP_SUPPORTED - jmp_buf tmp_jmp; /* save jump buffer */ -#endif - png_error_ptr error_fn; - png_error_ptr warning_fn; - png_voidp error_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - png_free_ptr free_fn; -#endif - - png_debug(1, "in png_write_destroy\n"); - /* free any memory zlib uses */ - deflateEnd(&png_ptr->zstream); - - /* free our memory. png_free checks NULL for us. */ - png_free(png_ptr, png_ptr->zbuf); - png_free(png_ptr, png_ptr->row_buf); - png_free(png_ptr, png_ptr->prev_row); - png_free(png_ptr, png_ptr->sub_row); - png_free(png_ptr, png_ptr->up_row); - png_free(png_ptr, png_ptr->avg_row); - png_free(png_ptr, png_ptr->paeth_row); - -#if defined(PNG_TIME_RFC1123_SUPPORTED) - png_free(png_ptr, png_ptr->time_buffer); -#endif - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - png_free(png_ptr, png_ptr->prev_filters); - png_free(png_ptr, png_ptr->filter_weights); - png_free(png_ptr, png_ptr->inv_filter_weights); - png_free(png_ptr, png_ptr->filter_costs); - png_free(png_ptr, png_ptr->inv_filter_costs); -#endif - -#ifdef PNG_SETJMP_SUPPORTED - /* reset structure */ - png_memcpy(tmp_jmp, png_ptr->jmpbuf, sizeof (jmp_buf)); -#endif - - error_fn = png_ptr->error_fn; - warning_fn = png_ptr->warning_fn; - error_ptr = png_ptr->error_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - free_fn = png_ptr->free_fn; -#endif - - png_memset(png_ptr, 0, sizeof (png_struct)); - - png_ptr->error_fn = error_fn; - png_ptr->warning_fn = warning_fn; - png_ptr->error_ptr = error_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - png_ptr->free_fn = free_fn; -#endif - -#ifdef PNG_SETJMP_SUPPORTED - png_memcpy(png_ptr->jmpbuf, tmp_jmp, sizeof (jmp_buf)); -#endif -} - -/* Allow the application to select one or more row filters to use. */ -void PNGAPI -png_set_filter(png_structp png_ptr, int method, int filters) -{ - png_debug(1, "in png_set_filter\n"); -#if defined(PNG_MNG_FEATURES_SUPPORTED) - if((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (method == PNG_INTRAPIXEL_DIFFERENCING)) - method = PNG_FILTER_TYPE_BASE; -#endif - if (method == PNG_FILTER_TYPE_BASE) - { - switch (filters & (PNG_ALL_FILTERS | 0x07)) - { - case 5: - case 6: - case 7: png_warning(png_ptr, "Unknown row filter for method 0"); - case PNG_FILTER_VALUE_NONE: png_ptr->do_filter=PNG_FILTER_NONE; break; - case PNG_FILTER_VALUE_SUB: png_ptr->do_filter=PNG_FILTER_SUB; break; - case PNG_FILTER_VALUE_UP: png_ptr->do_filter=PNG_FILTER_UP; break; - case PNG_FILTER_VALUE_AVG: png_ptr->do_filter=PNG_FILTER_AVG; break; - case PNG_FILTER_VALUE_PAETH: png_ptr->do_filter=PNG_FILTER_PAETH;break; - default: png_ptr->do_filter = (png_byte)filters; break; - } - - /* If we have allocated the row_buf, this means we have already started - * with the image and we should have allocated all of the filter buffers - * that have been selected. If prev_row isn't already allocated, then - * it is too late to start using the filters that need it, since we - * will be missing the data in the previous row. If an application - * wants to start and stop using particular filters during compression, - * it should start out with all of the filters, and then add and - * remove them after the start of compression. - */ - if (png_ptr->row_buf != NULL) - { - if ((png_ptr->do_filter & PNG_FILTER_SUB) && png_ptr->sub_row == NULL) - { - png_ptr->sub_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->sub_row[0] = PNG_FILTER_VALUE_SUB; - } - - if ((png_ptr->do_filter & PNG_FILTER_UP) && png_ptr->up_row == NULL) - { - if (png_ptr->prev_row == NULL) - { - png_warning(png_ptr, "Can't add Up filter after starting"); - png_ptr->do_filter &= ~PNG_FILTER_UP; - } - else - { - png_ptr->up_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->up_row[0] = PNG_FILTER_VALUE_UP; - } - } - - if ((png_ptr->do_filter & PNG_FILTER_AVG) && png_ptr->avg_row == NULL) - { - if (png_ptr->prev_row == NULL) - { - png_warning(png_ptr, "Can't add Average filter after starting"); - png_ptr->do_filter &= ~PNG_FILTER_AVG; - } - else - { - png_ptr->avg_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->avg_row[0] = PNG_FILTER_VALUE_AVG; - } - } - - if ((png_ptr->do_filter & PNG_FILTER_PAETH) && - png_ptr->paeth_row == NULL) - { - if (png_ptr->prev_row == NULL) - { - png_warning(png_ptr, "Can't add Paeth filter after starting"); - png_ptr->do_filter &= (png_byte)(~PNG_FILTER_PAETH); - } - else - { - png_ptr->paeth_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->paeth_row[0] = PNG_FILTER_VALUE_PAETH; - } - } - - if (png_ptr->do_filter == PNG_NO_FILTERS) - png_ptr->do_filter = PNG_FILTER_NONE; - } - } - else - png_error(png_ptr, "Unknown custom filter method"); -} - -/* This allows us to influence the way in which libpng chooses the "best" - * filter for the current scanline. While the "minimum-sum-of-absolute- - * differences metric is relatively fast and effective, there is some - * question as to whether it can be improved upon by trying to keep the - * filtered data going to zlib more consistent, hopefully resulting in - * better compression. - */ -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) /* GRR 970116 */ -void PNGAPI -png_set_filter_heuristics(png_structp png_ptr, int heuristic_method, - int num_weights, png_doublep filter_weights, - png_doublep filter_costs) -{ - int i; - - png_debug(1, "in png_set_filter_heuristics\n"); - if (heuristic_method >= PNG_FILTER_HEURISTIC_LAST) - { - png_warning(png_ptr, "Unknown filter heuristic method"); - return; - } - - if (heuristic_method == PNG_FILTER_HEURISTIC_DEFAULT) - { - heuristic_method = PNG_FILTER_HEURISTIC_UNWEIGHTED; - } - - if (num_weights < 0 || filter_weights == NULL || - heuristic_method == PNG_FILTER_HEURISTIC_UNWEIGHTED) - { - num_weights = 0; - } - - png_ptr->num_prev_filters = (png_byte)num_weights; - png_ptr->heuristic_method = (png_byte)heuristic_method; - - if (num_weights > 0) - { - if (png_ptr->prev_filters == NULL) - { - png_ptr->prev_filters = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(sizeof(png_byte) * num_weights)); - - /* To make sure that the weighting starts out fairly */ - for (i = 0; i < num_weights; i++) - { - png_ptr->prev_filters[i] = 255; - } - } - - if (png_ptr->filter_weights == NULL) - { - png_ptr->filter_weights = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(sizeof(png_uint_16) * num_weights)); - - png_ptr->inv_filter_weights = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(sizeof(png_uint_16) * num_weights)); - for (i = 0; i < num_weights; i++) - { - png_ptr->inv_filter_weights[i] = - png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR; - } - } - - for (i = 0; i < num_weights; i++) - { - if (filter_weights[i] < 0.0) - { - png_ptr->inv_filter_weights[i] = - png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR; - } - else - { - png_ptr->inv_filter_weights[i] = - (png_uint_16)((double)PNG_WEIGHT_FACTOR*filter_weights[i]+0.5); - png_ptr->filter_weights[i] = - (png_uint_16)((double)PNG_WEIGHT_FACTOR/filter_weights[i]+0.5); - } - } - } - - /* If, in the future, there are other filter methods, this would - * need to be based on png_ptr->filter. - */ - if (png_ptr->filter_costs == NULL) - { - png_ptr->filter_costs = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(sizeof(png_uint_16) * PNG_FILTER_VALUE_LAST)); - - png_ptr->inv_filter_costs = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(sizeof(png_uint_16) * PNG_FILTER_VALUE_LAST)); - - for (i = 0; i < PNG_FILTER_VALUE_LAST; i++) - { - png_ptr->inv_filter_costs[i] = - png_ptr->filter_costs[i] = PNG_COST_FACTOR; - } - } - - /* Here is where we set the relative costs of the different filters. We - * should take the desired compression level into account when setting - * the costs, so that Paeth, for instance, has a high relative cost at low - * compression levels, while it has a lower relative cost at higher - * compression settings. The filter types are in order of increasing - * relative cost, so it would be possible to do this with an algorithm. - */ - for (i = 0; i < PNG_FILTER_VALUE_LAST; i++) - { - if (filter_costs == NULL || filter_costs[i] < 0.0) - { - png_ptr->inv_filter_costs[i] = - png_ptr->filter_costs[i] = PNG_COST_FACTOR; - } - else if (filter_costs[i] >= 1.0) - { - png_ptr->inv_filter_costs[i] = - (png_uint_16)((double)PNG_COST_FACTOR / filter_costs[i] + 0.5); - png_ptr->filter_costs[i] = - (png_uint_16)((double)PNG_COST_FACTOR * filter_costs[i] + 0.5); - } - } -} -#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */ - -void PNGAPI -png_set_compression_level(png_structp png_ptr, int level) -{ - png_debug(1, "in png_set_compression_level\n"); - png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_LEVEL; - png_ptr->zlib_level = level; -} - -void PNGAPI -png_set_compression_mem_level(png_structp png_ptr, int mem_level) -{ - png_debug(1, "in png_set_compression_mem_level\n"); - png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL; - png_ptr->zlib_mem_level = mem_level; -} - -void PNGAPI -png_set_compression_strategy(png_structp png_ptr, int strategy) -{ - png_debug(1, "in png_set_compression_strategy\n"); - png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_STRATEGY; - png_ptr->zlib_strategy = strategy; -} - -void PNGAPI -png_set_compression_window_bits(png_structp png_ptr, int window_bits) -{ - if (window_bits > 15) - png_warning(png_ptr, "Only compression windows <= 32k supported by PNG"); - else if (window_bits < 8) - png_warning(png_ptr, "Only compression windows >= 256 supported by PNG"); -#ifndef WBITS_8_OK - /* avoid libpng bug with 256-byte windows */ - if (window_bits == 8) - { - png_warning(png_ptr, "Compression window is being reset to 512"); - window_bits=9; - } -#endif - png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_WINDOW_BITS; - png_ptr->zlib_window_bits = window_bits; -} - -void PNGAPI -png_set_compression_method(png_structp png_ptr, int method) -{ - png_debug(1, "in png_set_compression_method\n"); - if (method != 8) - png_warning(png_ptr, "Only compression method 8 is supported by PNG"); - png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_METHOD; - png_ptr->zlib_method = method; -} - -void PNGAPI -png_set_write_status_fn(png_structp png_ptr, png_write_status_ptr write_row_fn) -{ - png_ptr->write_row_fn = write_row_fn; -} - -#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) -void PNGAPI -png_set_write_user_transform_fn(png_structp png_ptr, png_user_transform_ptr - write_user_transform_fn) -{ - png_debug(1, "in png_set_write_user_transform_fn\n"); - png_ptr->transformations |= PNG_USER_TRANSFORM; - png_ptr->write_user_transform_fn = write_user_transform_fn; -} -#endif - - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -void PNGAPI -png_write_png(png_structp png_ptr, png_infop info_ptr, - int transforms, voidp params) -{ -#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) - /* invert the alpha channel from opacity to transparency */ - if (transforms & PNG_TRANSFORM_INVERT_ALPHA) - png_set_invert_alpha(png_ptr); -#endif - - /* Write the file header information. */ - png_write_info(png_ptr, info_ptr); - - /* ------ these transformations don't touch the info structure ------- */ - -#if defined(PNG_WRITE_INVERT_SUPPORTED) - /* invert monochrome pixels */ - if (transforms & PNG_TRANSFORM_INVERT_MONO) - png_set_invert_mono(png_ptr); -#endif - -#if defined(PNG_WRITE_SHIFT_SUPPORTED) - /* Shift the pixels up to a legal bit depth and fill in - * as appropriate to correctly scale the image. - */ - if ((transforms & PNG_TRANSFORM_SHIFT) - && (info_ptr->valid & PNG_INFO_sBIT)) - png_set_shift(png_ptr, &info_ptr->sig_bit); -#endif - -#if defined(PNG_WRITE_PACK_SUPPORTED) - /* pack pixels into bytes */ - if (transforms & PNG_TRANSFORM_PACKING) - png_set_packing(png_ptr); -#endif - -#if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) - /* swap location of alpha bytes from ARGB to RGBA */ - if (transforms & PNG_TRANSFORM_SWAP_ALPHA) - png_set_swap_alpha(png_ptr); -#endif - -#if defined(PNG_WRITE_FILLER_SUPPORTED) - /* Get rid of filler (OR ALPHA) bytes, pack XRGB/RGBX/ARGB/RGBA into - * RGB (4 channels -> 3 channels). The second parameter is not used. - */ - if (transforms & PNG_TRANSFORM_STRIP_FILLER) - png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); -#endif - -#if defined(PNG_WRITE_BGR_SUPPORTED) - /* flip BGR pixels to RGB */ - if (transforms & PNG_TRANSFORM_BGR) - png_set_bgr(png_ptr); -#endif - -#if defined(PNG_WRITE_SWAP_SUPPORTED) - /* swap bytes of 16-bit files to most significant byte first */ - if (transforms & PNG_TRANSFORM_SWAP_ENDIAN) - png_set_swap(png_ptr); -#endif - -#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) - /* swap bits of 1, 2, 4 bit packed pixel formats */ - if (transforms & PNG_TRANSFORM_PACKSWAP) - png_set_packswap(png_ptr); -#endif - - /* ----------------------- end of transformations ------------------- */ - - /* write the bits */ - if (info_ptr->valid & PNG_INFO_IDAT) - png_write_image(png_ptr, info_ptr->row_pointers); - - /* It is REQUIRED to call this to finish writing the rest of the file */ - png_write_end(png_ptr, info_ptr); - - if(transforms == 0 || params == NULL) - /* quiet compiler warnings */ return; -} -#endif -#endif /* PNG_WRITE_SUPPORTED */ diff --git a/collects/plot/src/all/pngwtran.c b/collects/plot/src/all/pngwtran.c deleted file mode 100644 index c28da116b7..0000000000 --- a/collects/plot/src/all/pngwtran.c +++ /dev/null @@ -1,563 +0,0 @@ - -/* pngwtran.c - transforms the data in a row for PNG writers - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -#define PNG_INTERNAL -#include "png.h" -#ifdef PNG_WRITE_SUPPORTED - -/* Transform the data according to the user's wishes. The order of - * transformations is significant. - */ -void /* PRIVATE */ -png_do_write_transformations(png_structp png_ptr) -{ - png_debug(1, "in png_do_write_transformations\n"); - - if (png_ptr == NULL) - return; - -#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) - if (png_ptr->transformations & PNG_USER_TRANSFORM) - if(png_ptr->write_user_transform_fn != NULL) - (*(png_ptr->write_user_transform_fn)) /* user write transform function */ - (png_ptr, /* png_ptr */ - &(png_ptr->row_info), /* row_info: */ - /* png_uint_32 width; width of row */ - /* png_uint_32 rowbytes; number of bytes in row */ - /* png_byte color_type; color type of pixels */ - /* png_byte bit_depth; bit depth of samples */ - /* png_byte channels; number of channels (1-4) */ - /* png_byte pixel_depth; bits per pixel (depth*channels) */ - png_ptr->row_buf + 1); /* start of pixel data for row */ -#endif -#if defined(PNG_WRITE_FILLER_SUPPORTED) - if (png_ptr->transformations & PNG_FILLER) - png_do_strip_filler(&(png_ptr->row_info), png_ptr->row_buf + 1, - png_ptr->flags); -#endif -#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - png_do_packswap(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif -#if defined(PNG_WRITE_PACK_SUPPORTED) - if (png_ptr->transformations & PNG_PACK) - png_do_pack(&(png_ptr->row_info), png_ptr->row_buf + 1, - (png_uint_32)png_ptr->bit_depth); -#endif -#if defined(PNG_WRITE_SWAP_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_BYTES) - png_do_swap(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif -#if defined(PNG_WRITE_SHIFT_SUPPORTED) - if (png_ptr->transformations & PNG_SHIFT) - png_do_shift(&(png_ptr->row_info), png_ptr->row_buf + 1, - &(png_ptr->shift)); -#endif -#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_ALPHA) - png_do_write_invert_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif -#if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_ALPHA) - png_do_write_swap_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif -#if defined(PNG_WRITE_BGR_SUPPORTED) - if (png_ptr->transformations & PNG_BGR) - png_do_bgr(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif -#if defined(PNG_WRITE_INVERT_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_MONO) - png_do_invert(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif -} - -#if defined(PNG_WRITE_PACK_SUPPORTED) -/* Pack pixels into bytes. Pass the true bit depth in bit_depth. The - * row_info bit depth should be 8 (one pixel per byte). The channels - * should be 1 (this only happens on grayscale and paletted images). - */ -void /* PRIVATE */ -png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth) -{ - png_debug(1, "in png_do_pack\n"); - if (row_info->bit_depth == 8 && -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - row_info->channels == 1) - { - switch ((int)bit_depth) - { - case 1: - { - png_bytep sp, dp; - int mask, v; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - sp = row; - dp = row; - mask = 0x80; - v = 0; - - for (i = 0; i < row_width; i++) - { - if (*sp != 0) - v |= mask; - sp++; - if (mask > 1) - mask >>= 1; - else - { - mask = 0x80; - *dp = (png_byte)v; - dp++; - v = 0; - } - } - if (mask != 0x80) - *dp = (png_byte)v; - break; - } - case 2: - { - png_bytep sp, dp; - int shift, v; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - sp = row; - dp = row; - shift = 6; - v = 0; - for (i = 0; i < row_width; i++) - { - png_byte value; - - value = (png_byte)(*sp & 0x03); - v |= (value << shift); - if (shift == 0) - { - shift = 6; - *dp = (png_byte)v; - dp++; - v = 0; - } - else - shift -= 2; - sp++; - } - if (shift != 6) - *dp = (png_byte)v; - break; - } - case 4: - { - png_bytep sp, dp; - int shift, v; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - sp = row; - dp = row; - shift = 4; - v = 0; - for (i = 0; i < row_width; i++) - { - png_byte value; - - value = (png_byte)(*sp & 0x0f); - v |= (value << shift); - - if (shift == 0) - { - shift = 4; - *dp = (png_byte)v; - dp++; - v = 0; - } - else - shift -= 4; - - sp++; - } - if (shift != 4) - *dp = (png_byte)v; - break; - } - } - row_info->bit_depth = (png_byte)bit_depth; - row_info->pixel_depth = (png_byte)(bit_depth * row_info->channels); - row_info->rowbytes = - ((row_info->width * row_info->pixel_depth + 7) >> 3); - } -} -#endif - -#if defined(PNG_WRITE_SHIFT_SUPPORTED) -/* Shift pixel values to take advantage of whole range. Pass the - * true number of bits in bit_depth. The row should be packed - * according to row_info->bit_depth. Thus, if you had a row of - * bit depth 4, but the pixels only had values from 0 to 7, you - * would pass 3 as bit_depth, and this routine would translate the - * data to 0 to 15. - */ -void /* PRIVATE */ -png_do_shift(png_row_infop row_info, png_bytep row, png_color_8p bit_depth) -{ - png_debug(1, "in png_do_shift\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL && -#else - if ( -#endif - row_info->color_type != PNG_COLOR_TYPE_PALETTE) - { - int shift_start[4], shift_dec[4]; - int channels = 0; - - if (row_info->color_type & PNG_COLOR_MASK_COLOR) - { - shift_start[channels] = row_info->bit_depth - bit_depth->red; - shift_dec[channels] = bit_depth->red; - channels++; - shift_start[channels] = row_info->bit_depth - bit_depth->green; - shift_dec[channels] = bit_depth->green; - channels++; - shift_start[channels] = row_info->bit_depth - bit_depth->blue; - shift_dec[channels] = bit_depth->blue; - channels++; - } - else - { - shift_start[channels] = row_info->bit_depth - bit_depth->gray; - shift_dec[channels] = bit_depth->gray; - channels++; - } - if (row_info->color_type & PNG_COLOR_MASK_ALPHA) - { - shift_start[channels] = row_info->bit_depth - bit_depth->alpha; - shift_dec[channels] = bit_depth->alpha; - channels++; - } - - /* with low row depths, could only be grayscale, so one channel */ - if (row_info->bit_depth < 8) - { - png_bytep bp = row; - png_uint_32 i; - png_byte mask; - png_uint_32 row_bytes = row_info->rowbytes; - - if (bit_depth->gray == 1 && row_info->bit_depth == 2) - mask = 0x55; - else if (row_info->bit_depth == 4 && bit_depth->gray == 3) - mask = 0x11; - else - mask = 0xff; - - for (i = 0; i < row_bytes; i++, bp++) - { - png_uint_16 v; - int j; - - v = *bp; - *bp = 0; - for (j = shift_start[0]; j > -shift_dec[0]; j -= shift_dec[0]) - { - if (j > 0) - *bp |= (png_byte)((v << j) & 0xff); - else - *bp |= (png_byte)((v >> (-j)) & mask); - } - } - } - else if (row_info->bit_depth == 8) - { - png_bytep bp = row; - png_uint_32 i; - png_uint_32 istop = channels * row_info->width; - - for (i = 0; i < istop; i++, bp++) - { - - png_uint_16 v; - int j; - int c = (int)(i%channels); - - v = *bp; - *bp = 0; - for (j = shift_start[c]; j > -shift_dec[c]; j -= shift_dec[c]) - { - if (j > 0) - *bp |= (png_byte)((v << j) & 0xff); - else - *bp |= (png_byte)((v >> (-j)) & 0xff); - } - } - } - else - { - png_bytep bp; - png_uint_32 i; - png_uint_32 istop = channels * row_info->width; - - for (bp = row, i = 0; i < istop; i++) - { - int c = (int)(i%channels); - png_uint_16 value, v; - int j; - - v = (png_uint_16)(((png_uint_16)(*bp) << 8) + *(bp + 1)); - value = 0; - for (j = shift_start[c]; j > -shift_dec[c]; j -= shift_dec[c]) - { - if (j > 0) - value |= (png_uint_16)((v << j) & (png_uint_16)0xffff); - else - value |= (png_uint_16)((v >> (-j)) & (png_uint_16)0xffff); - } - *bp++ = (png_byte)(value >> 8); - *bp++ = (png_byte)(value & 0xff); - } - } - } -} -#endif - -#if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) -void /* PRIVATE */ -png_do_write_swap_alpha(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_write_swap_alpha\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - /* This converts from ARGB to RGBA */ - if (row_info->bit_depth == 8) - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - for (i = 0, sp = dp = row; i < row_width; i++) - { - png_byte save = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = save; - } - } - /* This converts from AARRGGBB to RRGGBBAA */ - else - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - png_byte save[2]; - save[0] = *(sp++); - save[1] = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = save[0]; - *(dp++) = save[1]; - } - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - /* This converts from AG to GA */ - if (row_info->bit_depth == 8) - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - png_byte save = *(sp++); - *(dp++) = *(sp++); - *(dp++) = save; - } - } - /* This converts from AAGG to GGAA */ - else - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - png_byte save[2]; - save[0] = *(sp++); - save[1] = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = save[0]; - *(dp++) = save[1]; - } - } - } - } -} -#endif - -#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) -void /* PRIVATE */ -png_do_write_invert_alpha(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_write_invert_alpha\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - /* This inverts the alpha channel in RGBA */ - if (row_info->bit_depth == 8) - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - for (i = 0, sp = dp = row; i < row_width; i++) - { - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = (png_byte)(255 - *(sp++)); - } - } - /* This inverts the alpha channel in RRGGBBAA */ - else - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = (png_byte)(255 - *(sp++)); - *(dp++) = (png_byte)(255 - *(sp++)); - } - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - /* This inverts the alpha channel in GA */ - if (row_info->bit_depth == 8) - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - *(dp++) = *(sp++); - *(dp++) = (png_byte)(255 - *(sp++)); - } - } - /* This inverts the alpha channel in GGAA */ - else - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = (png_byte)(255 - *(sp++)); - *(dp++) = (png_byte)(255 - *(sp++)); - } - } - } - } -} -#endif - -#if defined(PNG_MNG_FEATURES_SUPPORTED) -/* undoes intrapixel differencing */ -void /* PRIVATE */ -png_do_write_intrapixel(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_write_intrapixel\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - (row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - int bytes_per_pixel; - png_uint_32 row_width = row_info->width; - if (row_info->bit_depth == 8) - { - png_bytep rp; - png_uint_32 i; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - bytes_per_pixel = 3; - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - bytes_per_pixel = 4; - else - return; - - for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) - { - *(rp) = (png_byte)((*rp - *(rp+1))&0xff); - *(rp+2) = (png_byte)((*(rp+2) - *(rp+1))&0xff); - } - } - else if (row_info->bit_depth == 16) - { - png_bytep rp; - png_uint_32 i; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - bytes_per_pixel = 6; - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - bytes_per_pixel = 8; - else - return; - - for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) - { - png_uint_32 s0=*(rp )<<8 | *(rp+1); - png_uint_32 s1=*(rp+2)<<8 | *(rp+3); - png_uint_32 s2=*(rp+4)<<8 | *(rp+5); - png_uint_32 red=(s0-s1)&0xffff; - png_uint_32 blue=(s2-s1)&0xffff; - *(rp ) = (png_byte)((red>>8)&0xff); - *(rp+1) = (png_byte)(red&0xff); - *(rp+4) = (png_byte)((blue>>8)&0xff); - *(rp+5) = (png_byte)(blue&0xff); - } - } - } -} -#endif /* PNG_MNG_FEATURES_SUPPORTED */ -#endif /* PNG_WRITE_SUPPORTED */ diff --git a/collects/plot/src/all/pngwutil.c b/collects/plot/src/all/pngwutil.c deleted file mode 100644 index 4b5ab6c87e..0000000000 --- a/collects/plot/src/all/pngwutil.c +++ /dev/null @@ -1,2675 +0,0 @@ - -/* pngwutil.c - utilities to write a PNG file - * - * libpng 1.2.5 - October 3, 2002 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2002 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -#define PNG_INTERNAL -#include "png.h" -#ifdef PNG_WRITE_SUPPORTED - -/* Place a 32-bit number into a buffer in PNG byte order. We work - * with unsigned numbers for convenience, although one supported - * ancillary chunk uses signed (two's complement) numbers. - */ -void /* PRIVATE */ -png_save_uint_32(png_bytep buf, png_uint_32 i) -{ - buf[0] = (png_byte)((i >> 24) & 0xff); - buf[1] = (png_byte)((i >> 16) & 0xff); - buf[2] = (png_byte)((i >> 8) & 0xff); - buf[3] = (png_byte)(i & 0xff); -} - -#if defined(PNG_WRITE_pCAL_SUPPORTED) || defined(PNG_WRITE_oFFs_SUPPORTED) -/* The png_save_int_32 function assumes integers are stored in two's - * complement format. If this isn't the case, then this routine needs to - * be modified to write data in two's complement format. - */ -void /* PRIVATE */ -png_save_int_32(png_bytep buf, png_int_32 i) -{ - buf[0] = (png_byte)((i >> 24) & 0xff); - buf[1] = (png_byte)((i >> 16) & 0xff); - buf[2] = (png_byte)((i >> 8) & 0xff); - buf[3] = (png_byte)(i & 0xff); -} -#endif - -/* Place a 16-bit number into a buffer in PNG byte order. - * The parameter is declared unsigned int, not png_uint_16, - * just to avoid potential problems on pre-ANSI C compilers. - */ -void /* PRIVATE */ -png_save_uint_16(png_bytep buf, unsigned int i) -{ - buf[0] = (png_byte)((i >> 8) & 0xff); - buf[1] = (png_byte)(i & 0xff); -} - -/* Write a PNG chunk all at once. The type is an array of ASCII characters - * representing the chunk name. The array must be at least 4 bytes in - * length, and does not need to be null terminated. To be safe, pass the - * pre-defined chunk names here, and if you need a new one, define it - * where the others are defined. The length is the length of the data. - * All the data must be present. If that is not possible, use the - * png_write_chunk_start(), png_write_chunk_data(), and png_write_chunk_end() - * functions instead. - */ -void PNGAPI -png_write_chunk(png_structp png_ptr, png_bytep chunk_name, - png_bytep data, png_size_t length) -{ - png_write_chunk_start(png_ptr, chunk_name, (png_uint_32)length); - png_write_chunk_data(png_ptr, data, length); - png_write_chunk_end(png_ptr); -} - -/* Write the start of a PNG chunk. The type is the chunk type. - * The total_length is the sum of the lengths of all the data you will be - * passing in png_write_chunk_data(). - */ -void PNGAPI -png_write_chunk_start(png_structp png_ptr, png_bytep chunk_name, - png_uint_32 length) -{ - png_byte buf[4]; - png_debug2(0, "Writing %s chunk (%lu bytes)\n", chunk_name, length); - - /* write the length */ - png_save_uint_32(buf, length); - png_write_data(png_ptr, buf, (png_size_t)4); - - /* write the chunk name */ - png_write_data(png_ptr, chunk_name, (png_size_t)4); - /* reset the crc and run it over the chunk name */ - png_reset_crc(png_ptr); - png_calculate_crc(png_ptr, chunk_name, (png_size_t)4); -} - -/* Write the data of a PNG chunk started with png_write_chunk_start(). - * Note that multiple calls to this function are allowed, and that the - * sum of the lengths from these calls *must* add up to the total_length - * given to png_write_chunk_start(). - */ -void PNGAPI -png_write_chunk_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - /* write the data, and run the CRC over it */ - if (data != NULL && length > 0) - { - png_calculate_crc(png_ptr, data, length); - png_write_data(png_ptr, data, length); - } -} - -/* Finish a chunk started with png_write_chunk_start(). */ -void PNGAPI -png_write_chunk_end(png_structp png_ptr) -{ - png_byte buf[4]; - - /* write the crc */ - png_save_uint_32(buf, png_ptr->crc); - - png_write_data(png_ptr, buf, (png_size_t)4); -} - -/* Simple function to write the signature. If we have already written - * the magic bytes of the signature, or more likely, the PNG stream is - * being embedded into another stream and doesn't need its own signature, - * we should call png_set_sig_bytes() to tell libpng how many of the - * bytes have already been written. - */ -void /* PRIVATE */ -png_write_sig(png_structp png_ptr) -{ - png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10}; - /* write the rest of the 8 byte signature */ - png_write_data(png_ptr, &png_signature[png_ptr->sig_bytes], - (png_size_t)8 - png_ptr->sig_bytes); - if(png_ptr->sig_bytes < 3) - png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE; -} - -#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_iCCP_SUPPORTED) -/* - * This pair of functions encapsulates the operation of (a) compressing a - * text string, and (b) issuing it later as a series of chunk data writes. - * The compression_state structure is shared context for these functions - * set up by the caller in order to make the whole mess thread-safe. - */ - -typedef struct -{ - char *input; /* the uncompressed input data */ - int input_len; /* its length */ - int num_output_ptr; /* number of output pointers used */ - int max_output_ptr; /* size of output_ptr */ - png_charpp output_ptr; /* array of pointers to output */ -} compression_state; - -/* compress given text into storage in the png_ptr structure */ -static int /* PRIVATE */ -png_text_compress(png_structp png_ptr, - png_charp text, png_size_t text_len, int compression, - compression_state *comp) -{ - int ret; - - comp->num_output_ptr = comp->max_output_ptr = 0; - comp->output_ptr = NULL; - comp->input = NULL; - - /* we may just want to pass the text right through */ - if (compression == PNG_TEXT_COMPRESSION_NONE) - { - comp->input = text; - comp->input_len = text_len; - return((int)text_len); - } - - if (compression >= PNG_TEXT_COMPRESSION_LAST) - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char msg[50]; - sprintf(msg, "Unknown compression type %d", compression); - png_warning(png_ptr, msg); -#else - png_warning(png_ptr, "Unknown compression type"); -#endif - } - - /* We can't write the chunk until we find out how much data we have, - * which means we need to run the compressor first and save the - * output. This shouldn't be a problem, as the vast majority of - * comments should be reasonable, but we will set up an array of - * malloc'd pointers to be sure. - * - * If we knew the application was well behaved, we could simplify this - * greatly by assuming we can always malloc an output buffer large - * enough to hold the compressed text ((1001 * text_len / 1000) + 12) - * and malloc this directly. The only time this would be a bad idea is - * if we can't malloc more than 64K and we have 64K of random input - * data, or if the input string is incredibly large (although this - * wouldn't cause a failure, just a slowdown due to swapping). - */ - - /* set up the compression buffers */ - png_ptr->zstream.avail_in = (uInt)text_len; - png_ptr->zstream.next_in = (Bytef *)text; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - png_ptr->zstream.next_out = (Bytef *)png_ptr->zbuf; - - /* this is the same compression loop as in png_write_row() */ - do - { - /* compress the data */ - ret = deflate(&png_ptr->zstream, Z_NO_FLUSH); - if (ret != Z_OK) - { - /* error */ - if (png_ptr->zstream.msg != NULL) - png_error(png_ptr, png_ptr->zstream.msg); - else - png_error(png_ptr, "zlib error"); - } - /* check to see if we need more room */ - if (!png_ptr->zstream.avail_out && png_ptr->zstream.avail_in) - { - /* make sure the output array has room */ - if (comp->num_output_ptr >= comp->max_output_ptr) - { - int old_max; - - old_max = comp->max_output_ptr; - comp->max_output_ptr = comp->num_output_ptr + 4; - if (comp->output_ptr != NULL) - { - png_charpp old_ptr; - - old_ptr = comp->output_ptr; - comp->output_ptr = (png_charpp)png_malloc(png_ptr, - (png_uint_32)(comp->max_output_ptr * sizeof (png_charpp))); - png_memcpy(comp->output_ptr, old_ptr, old_max - * sizeof (png_charp)); - png_free(png_ptr, old_ptr); - } - else - comp->output_ptr = (png_charpp)png_malloc(png_ptr, - (png_uint_32)(comp->max_output_ptr * sizeof (png_charp))); - } - - /* save the data */ - comp->output_ptr[comp->num_output_ptr] = (png_charp)png_malloc(png_ptr, - (png_uint_32)png_ptr->zbuf_size); - png_memcpy(comp->output_ptr[comp->num_output_ptr], png_ptr->zbuf, - png_ptr->zbuf_size); - comp->num_output_ptr++; - - /* and reset the buffer */ - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - png_ptr->zstream.next_out = png_ptr->zbuf; - } - /* continue until we don't have any more to compress */ - } while (png_ptr->zstream.avail_in); - - /* finish the compression */ - do - { - /* tell zlib we are finished */ - ret = deflate(&png_ptr->zstream, Z_FINISH); - - if (ret == Z_OK) - { - /* check to see if we need more room */ - if (!(png_ptr->zstream.avail_out)) - { - /* check to make sure our output array has room */ - if (comp->num_output_ptr >= comp->max_output_ptr) - { - int old_max; - - old_max = comp->max_output_ptr; - comp->max_output_ptr = comp->num_output_ptr + 4; - if (comp->output_ptr != NULL) - { - png_charpp old_ptr; - - old_ptr = comp->output_ptr; - /* This could be optimized to realloc() */ - comp->output_ptr = (png_charpp)png_malloc(png_ptr, - (png_uint_32)(comp->max_output_ptr * sizeof (png_charpp))); - png_memcpy(comp->output_ptr, old_ptr, - old_max * sizeof (png_charp)); - png_free(png_ptr, old_ptr); - } - else - comp->output_ptr = (png_charpp)png_malloc(png_ptr, - (png_uint_32)(comp->max_output_ptr * sizeof (png_charp))); - } - - /* save off the data */ - comp->output_ptr[comp->num_output_ptr] = - (png_charp)png_malloc(png_ptr, (png_uint_32)png_ptr->zbuf_size); - png_memcpy(comp->output_ptr[comp->num_output_ptr], png_ptr->zbuf, - png_ptr->zbuf_size); - comp->num_output_ptr++; - - /* and reset the buffer pointers */ - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - png_ptr->zstream.next_out = png_ptr->zbuf; - } - } - else if (ret != Z_STREAM_END) - { - /* we got an error */ - if (png_ptr->zstream.msg != NULL) - png_error(png_ptr, png_ptr->zstream.msg); - else - png_error(png_ptr, "zlib error"); - } - } while (ret != Z_STREAM_END); - - /* text length is number of buffers plus last buffer */ - text_len = png_ptr->zbuf_size * comp->num_output_ptr; - if (png_ptr->zstream.avail_out < png_ptr->zbuf_size) - text_len += png_ptr->zbuf_size - (png_size_t)png_ptr->zstream.avail_out; - - return((int)text_len); -} - -/* ship the compressed text out via chunk writes */ -static void /* PRIVATE */ -png_write_compressed_data_out(png_structp png_ptr, compression_state *comp) -{ - int i; - - /* handle the no-compression case */ - if (comp->input) - { - png_write_chunk_data(png_ptr, (png_bytep)comp->input, - (png_size_t)comp->input_len); - return; - } - - /* write saved output buffers, if any */ - for (i = 0; i < comp->num_output_ptr; i++) - { - png_write_chunk_data(png_ptr,(png_bytep)comp->output_ptr[i], - png_ptr->zbuf_size); - png_free(png_ptr, comp->output_ptr[i]); - comp->output_ptr[i]=NULL; - } - if (comp->max_output_ptr != 0) - png_free(png_ptr, comp->output_ptr); - comp->output_ptr=NULL; - /* write anything left in zbuf */ - if (png_ptr->zstream.avail_out < (png_uint_32)png_ptr->zbuf_size) - png_write_chunk_data(png_ptr, png_ptr->zbuf, - png_ptr->zbuf_size - png_ptr->zstream.avail_out); - - /* reset zlib for another zTXt/iTXt or the image data */ - deflateReset(&png_ptr->zstream); - -} -#endif - -/* Write the IHDR chunk, and update the png_struct with the necessary - * information. Note that the rest of this code depends upon this - * information being correct. - */ -void /* PRIVATE */ -png_write_IHDR(png_structp png_ptr, png_uint_32 width, png_uint_32 height, - int bit_depth, int color_type, int compression_type, int filter_type, - int interlace_type) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IHDR; -#endif - png_byte buf[13]; /* buffer to store the IHDR info */ - - png_debug(1, "in png_write_IHDR\n"); - /* Check that we have valid input data from the application info */ - switch (color_type) - { - case PNG_COLOR_TYPE_GRAY: - switch (bit_depth) - { - case 1: - case 2: - case 4: - case 8: - case 16: png_ptr->channels = 1; break; - default: png_error(png_ptr,"Invalid bit depth for grayscale image"); - } - break; - case PNG_COLOR_TYPE_RGB: - if (bit_depth != 8 && bit_depth != 16) - png_error(png_ptr, "Invalid bit depth for RGB image"); - png_ptr->channels = 3; - break; - case PNG_COLOR_TYPE_PALETTE: - switch (bit_depth) - { - case 1: - case 2: - case 4: - case 8: png_ptr->channels = 1; break; - default: png_error(png_ptr, "Invalid bit depth for paletted image"); - } - break; - case PNG_COLOR_TYPE_GRAY_ALPHA: - if (bit_depth != 8 && bit_depth != 16) - png_error(png_ptr, "Invalid bit depth for grayscale+alpha image"); - png_ptr->channels = 2; - break; - case PNG_COLOR_TYPE_RGB_ALPHA: - if (bit_depth != 8 && bit_depth != 16) - png_error(png_ptr, "Invalid bit depth for RGBA image"); - png_ptr->channels = 4; - break; - default: - png_error(png_ptr, "Invalid image color type specified"); - } - - if (compression_type != PNG_COMPRESSION_TYPE_BASE) - { - png_warning(png_ptr, "Invalid compression type specified"); - compression_type = PNG_COMPRESSION_TYPE_BASE; - } - - /* Write filter_method 64 (intrapixel differencing) only if - * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and - * 2. Libpng did not write a PNG signature (this filter_method is only - * used in PNG datastreams that are embedded in MNG datastreams) and - * 3. The application called png_permit_mng_features with a mask that - * included PNG_FLAG_MNG_FILTER_64 and - * 4. The filter_method is 64 and - * 5. The color_type is RGB or RGBA - */ - if ( -#if defined(PNG_MNG_FEATURES_SUPPORTED) - !((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) && - (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) && - (filter_type == PNG_INTRAPIXEL_DIFFERENCING)) && -#endif - filter_type != PNG_FILTER_TYPE_BASE) - { - png_warning(png_ptr, "Invalid filter type specified"); - filter_type = PNG_FILTER_TYPE_BASE; - } - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - if (interlace_type != PNG_INTERLACE_NONE && - interlace_type != PNG_INTERLACE_ADAM7) - { - png_warning(png_ptr, "Invalid interlace type specified"); - interlace_type = PNG_INTERLACE_ADAM7; - } -#else - interlace_type=PNG_INTERLACE_NONE; -#endif - - /* save off the relevent information */ - png_ptr->bit_depth = (png_byte)bit_depth; - png_ptr->color_type = (png_byte)color_type; - png_ptr->interlaced = (png_byte)interlace_type; -#if defined(PNG_MNG_FEATURES_SUPPORTED) - png_ptr->filter_type = (png_byte)filter_type; -#endif - png_ptr->width = width; - png_ptr->height = height; - - png_ptr->pixel_depth = (png_byte)(bit_depth * png_ptr->channels); - png_ptr->rowbytes = ((width * (png_size_t)png_ptr->pixel_depth + 7) >> 3); - /* set the usr info, so any transformations can modify it */ - png_ptr->usr_width = png_ptr->width; - png_ptr->usr_bit_depth = png_ptr->bit_depth; - png_ptr->usr_channels = png_ptr->channels; - - /* pack the header information into the buffer */ - png_save_uint_32(buf, width); - png_save_uint_32(buf + 4, height); - buf[8] = (png_byte)bit_depth; - buf[9] = (png_byte)color_type; - buf[10] = (png_byte)compression_type; - buf[11] = (png_byte)filter_type; - buf[12] = (png_byte)interlace_type; - - /* write the chunk */ - png_write_chunk(png_ptr, (png_bytep)png_IHDR, buf, (png_size_t)13); - - /* initialize zlib with PNG info */ - png_ptr->zstream.zalloc = png_zalloc; - png_ptr->zstream.zfree = png_zfree; - png_ptr->zstream.opaque = (voidpf)png_ptr; - if (!(png_ptr->do_filter)) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE || - png_ptr->bit_depth < 8) - png_ptr->do_filter = PNG_FILTER_NONE; - else - png_ptr->do_filter = PNG_ALL_FILTERS; - } - if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_STRATEGY)) - { - if (png_ptr->do_filter != PNG_FILTER_NONE) - png_ptr->zlib_strategy = Z_FILTERED; - else - png_ptr->zlib_strategy = Z_DEFAULT_STRATEGY; - } - if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_LEVEL)) - png_ptr->zlib_level = Z_DEFAULT_COMPRESSION; - if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL)) - png_ptr->zlib_mem_level = 8; - if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_WINDOW_BITS)) - png_ptr->zlib_window_bits = 15; - if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_METHOD)) - png_ptr->zlib_method = 8; - deflateInit2(&png_ptr->zstream, png_ptr->zlib_level, - png_ptr->zlib_method, png_ptr->zlib_window_bits, - png_ptr->zlib_mem_level, png_ptr->zlib_strategy); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - - png_ptr->mode = PNG_HAVE_IHDR; -} - -/* write the palette. We are careful not to trust png_color to be in the - * correct order for PNG, so people can redefine it to any convenient - * structure. - */ -void /* PRIVATE */ -png_write_PLTE(png_structp png_ptr, png_colorp palette, png_uint_32 num_pal) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_PLTE; -#endif - png_uint_32 i; - png_colorp pal_ptr; - png_byte buf[3]; - - png_debug(1, "in png_write_PLTE\n"); - if (( -#if defined(PNG_MNG_FEATURES_SUPPORTED) - !(png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) && -#endif - num_pal == 0) || num_pal > 256) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - png_error(png_ptr, "Invalid number of colors in palette"); - } - else - { - png_warning(png_ptr, "Invalid number of colors in palette"); - return; - } - } - - if (!(png_ptr->color_type&PNG_COLOR_MASK_COLOR)) - { - png_warning(png_ptr, - "Ignoring request to write a PLTE chunk in grayscale PNG"); - return; - } - - png_ptr->num_palette = (png_uint_16)num_pal; - png_debug1(3, "num_palette = %d\n", png_ptr->num_palette); - - png_write_chunk_start(png_ptr, (png_bytep)png_PLTE, num_pal * 3); -#ifndef PNG_NO_POINTER_INDEXING - for (i = 0, pal_ptr = palette; i < num_pal; i++, pal_ptr++) - { - buf[0] = pal_ptr->red; - buf[1] = pal_ptr->green; - buf[2] = pal_ptr->blue; - png_write_chunk_data(png_ptr, buf, (png_size_t)3); - } -#else - /* This is a little slower but some buggy compilers need to do this instead */ - pal_ptr=palette; - for (i = 0; i < num_pal; i++) - { - buf[0] = pal_ptr[i].red; - buf[1] = pal_ptr[i].green; - buf[2] = pal_ptr[i].blue; - png_write_chunk_data(png_ptr, buf, (png_size_t)3); - } -#endif - png_write_chunk_end(png_ptr); - png_ptr->mode |= PNG_HAVE_PLTE; -} - -/* write an IDAT chunk */ -void /* PRIVATE */ -png_write_IDAT(png_structp png_ptr, png_bytep data, png_size_t length) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IDAT; -#endif - png_debug(1, "in png_write_IDAT\n"); - png_write_chunk(png_ptr, (png_bytep)png_IDAT, data, length); - png_ptr->mode |= PNG_HAVE_IDAT; -} - -/* write an IEND chunk */ -void /* PRIVATE */ -png_write_IEND(png_structp png_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IEND; -#endif - png_debug(1, "in png_write_IEND\n"); - png_write_chunk(png_ptr, (png_bytep)png_IEND, png_bytep_NULL, - (png_size_t)0); - png_ptr->mode |= PNG_HAVE_IEND; -} - -#if defined(PNG_WRITE_gAMA_SUPPORTED) -/* write a gAMA chunk */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -void /* PRIVATE */ -png_write_gAMA(png_structp png_ptr, double file_gamma) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_gAMA; -#endif - png_uint_32 igamma; - png_byte buf[4]; - - png_debug(1, "in png_write_gAMA\n"); - /* file_gamma is saved in 1/100,000ths */ - igamma = (png_uint_32)(file_gamma * 100000.0 + 0.5); - png_save_uint_32(buf, igamma); - png_write_chunk(png_ptr, (png_bytep)png_gAMA, buf, (png_size_t)4); -} -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -void /* PRIVATE */ -png_write_gAMA_fixed(png_structp png_ptr, png_fixed_point file_gamma) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_gAMA; -#endif - png_byte buf[4]; - - png_debug(1, "in png_write_gAMA\n"); - /* file_gamma is saved in 1/100,000ths */ - png_save_uint_32(buf, (png_uint_32)file_gamma); - png_write_chunk(png_ptr, (png_bytep)png_gAMA, buf, (png_size_t)4); -} -#endif -#endif - -#if defined(PNG_WRITE_sRGB_SUPPORTED) -/* write a sRGB chunk */ -void /* PRIVATE */ -png_write_sRGB(png_structp png_ptr, int srgb_intent) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_sRGB; -#endif - png_byte buf[1]; - - png_debug(1, "in png_write_sRGB\n"); - if(srgb_intent >= PNG_sRGB_INTENT_LAST) - png_warning(png_ptr, - "Invalid sRGB rendering intent specified"); - buf[0]=(png_byte)srgb_intent; - png_write_chunk(png_ptr, (png_bytep)png_sRGB, buf, (png_size_t)1); -} -#endif - -#if defined(PNG_WRITE_iCCP_SUPPORTED) -/* write an iCCP chunk */ -void /* PRIVATE */ -png_write_iCCP(png_structp png_ptr, png_charp name, int compression_type, - png_charp profile, int profile_len) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_iCCP; -#endif - png_size_t name_len; - png_charp new_name; - compression_state comp; - - png_debug(1, "in png_write_iCCP\n"); - if (name == NULL || (name_len = png_check_keyword(png_ptr, name, - &new_name)) == 0) - { - png_warning(png_ptr, "Empty keyword in iCCP chunk"); - return; - } - - if (compression_type != PNG_COMPRESSION_TYPE_BASE) - png_warning(png_ptr, "Unknown compression type in iCCP chunk"); - - if (profile == NULL) - profile_len = 0; - - if (profile_len) - profile_len = png_text_compress(png_ptr, profile, (png_size_t)profile_len, - PNG_COMPRESSION_TYPE_BASE, &comp); - - /* make sure we include the NULL after the name and the compression type */ - png_write_chunk_start(png_ptr, (png_bytep)png_iCCP, - (png_uint_32)name_len+profile_len+2); - new_name[name_len+1]=0x00; - png_write_chunk_data(png_ptr, (png_bytep)new_name, name_len + 2); - - if (profile_len) - png_write_compressed_data_out(png_ptr, &comp); - - png_write_chunk_end(png_ptr); - png_free(png_ptr, new_name); -} -#endif - -#if defined(PNG_WRITE_sPLT_SUPPORTED) -/* write a sPLT chunk */ -void /* PRIVATE */ -png_write_sPLT(png_structp png_ptr, png_sPLT_tp spalette) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_sPLT; -#endif - png_size_t name_len; - png_charp new_name; - png_byte entrybuf[10]; - int entry_size = (spalette->depth == 8 ? 6 : 10); - int palette_size = entry_size * spalette->nentries; - png_sPLT_entryp ep; -#ifdef PNG_NO_POINTER_INDEXING - int i; -#endif - - png_debug(1, "in png_write_sPLT\n"); - if (spalette->name == NULL || (name_len = png_check_keyword(png_ptr, - spalette->name, &new_name))==0) - { - png_warning(png_ptr, "Empty keyword in sPLT chunk"); - return; - } - - /* make sure we include the NULL after the name */ - png_write_chunk_start(png_ptr, (png_bytep)png_sPLT, - (png_uint_32)(name_len + 2 + palette_size)); - png_write_chunk_data(png_ptr, (png_bytep)new_name, name_len + 1); - png_write_chunk_data(png_ptr, (png_bytep)&spalette->depth, 1); - - /* loop through each palette entry, writing appropriately */ -#ifndef PNG_NO_POINTER_INDEXING - for (ep = spalette->entries; epentries+spalette->nentries; ep++) - { - if (spalette->depth == 8) - { - entrybuf[0] = (png_byte)ep->red; - entrybuf[1] = (png_byte)ep->green; - entrybuf[2] = (png_byte)ep->blue; - entrybuf[3] = (png_byte)ep->alpha; - png_save_uint_16(entrybuf + 4, ep->frequency); - } - else - { - png_save_uint_16(entrybuf + 0, ep->red); - png_save_uint_16(entrybuf + 2, ep->green); - png_save_uint_16(entrybuf + 4, ep->blue); - png_save_uint_16(entrybuf + 6, ep->alpha); - png_save_uint_16(entrybuf + 8, ep->frequency); - } - png_write_chunk_data(png_ptr, entrybuf, (png_size_t)entry_size); - } -#else - ep=spalette->entries; - for (i=0; i>spalette->nentries; i++) - { - if (spalette->depth == 8) - { - entrybuf[0] = (png_byte)ep[i].red; - entrybuf[1] = (png_byte)ep[i].green; - entrybuf[2] = (png_byte)ep[i].blue; - entrybuf[3] = (png_byte)ep[i].alpha; - png_save_uint_16(entrybuf + 4, ep[i].frequency); - } - else - { - png_save_uint_16(entrybuf + 0, ep[i].red); - png_save_uint_16(entrybuf + 2, ep[i].green); - png_save_uint_16(entrybuf + 4, ep[i].blue); - png_save_uint_16(entrybuf + 6, ep[i].alpha); - png_save_uint_16(entrybuf + 8, ep[i].frequency); - } - png_write_chunk_data(png_ptr, entrybuf, entry_size); - } -#endif - - png_write_chunk_end(png_ptr); - png_free(png_ptr, new_name); -} -#endif - -#if defined(PNG_WRITE_sBIT_SUPPORTED) -/* write the sBIT chunk */ -void /* PRIVATE */ -png_write_sBIT(png_structp png_ptr, png_color_8p sbit, int color_type) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_sBIT; -#endif - png_byte buf[4]; - png_size_t size; - - png_debug(1, "in png_write_sBIT\n"); - /* make sure we don't depend upon the order of PNG_COLOR_8 */ - if (color_type & PNG_COLOR_MASK_COLOR) - { - png_byte maxbits; - - maxbits = (png_byte)(color_type==PNG_COLOR_TYPE_PALETTE ? 8 : - png_ptr->usr_bit_depth); - if (sbit->red == 0 || sbit->red > maxbits || - sbit->green == 0 || sbit->green > maxbits || - sbit->blue == 0 || sbit->blue > maxbits) - { - png_warning(png_ptr, "Invalid sBIT depth specified"); - return; - } - buf[0] = sbit->red; - buf[1] = sbit->green; - buf[2] = sbit->blue; - size = 3; - } - else - { - if (sbit->gray == 0 || sbit->gray > png_ptr->usr_bit_depth) - { - png_warning(png_ptr, "Invalid sBIT depth specified"); - return; - } - buf[0] = sbit->gray; - size = 1; - } - - if (color_type & PNG_COLOR_MASK_ALPHA) - { - if (sbit->alpha == 0 || sbit->alpha > png_ptr->usr_bit_depth) - { - png_warning(png_ptr, "Invalid sBIT depth specified"); - return; - } - buf[size++] = sbit->alpha; - } - - png_write_chunk(png_ptr, (png_bytep)png_sBIT, buf, size); -} -#endif - -#if defined(PNG_WRITE_cHRM_SUPPORTED) -/* write the cHRM chunk */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -void /* PRIVATE */ -png_write_cHRM(png_structp png_ptr, double white_x, double white_y, - double red_x, double red_y, double green_x, double green_y, - double blue_x, double blue_y) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_cHRM; -#endif - png_byte buf[32]; - png_uint_32 itemp; - - png_debug(1, "in png_write_cHRM\n"); - /* each value is saved in 1/100,000ths */ - if (white_x < 0 || white_x > 0.8 || white_y < 0 || white_y > 0.8 || - white_x + white_y > 1.0) - { - png_warning(png_ptr, "Invalid cHRM white point specified"); -#if !defined(PNG_NO_CONSOLE_IO) - fprintf(stderr,"white_x=%f, white_y=%f\n",white_x, white_y); -#endif - return; - } - itemp = (png_uint_32)(white_x * 100000.0 + 0.5); - png_save_uint_32(buf, itemp); - itemp = (png_uint_32)(white_y * 100000.0 + 0.5); - png_save_uint_32(buf + 4, itemp); - - if (red_x < 0 || red_x > 0.8 || red_y < 0 || red_y > 0.8 || - red_x + red_y > 1.0) - { - png_warning(png_ptr, "Invalid cHRM red point specified"); - return; - } - itemp = (png_uint_32)(red_x * 100000.0 + 0.5); - png_save_uint_32(buf + 8, itemp); - itemp = (png_uint_32)(red_y * 100000.0 + 0.5); - png_save_uint_32(buf + 12, itemp); - - if (green_x < 0 || green_x > 0.8 || green_y < 0 || green_y > 0.8 || - green_x + green_y > 1.0) - { - png_warning(png_ptr, "Invalid cHRM green point specified"); - return; - } - itemp = (png_uint_32)(green_x * 100000.0 + 0.5); - png_save_uint_32(buf + 16, itemp); - itemp = (png_uint_32)(green_y * 100000.0 + 0.5); - png_save_uint_32(buf + 20, itemp); - - if (blue_x < 0 || blue_x > 0.8 || blue_y < 0 || blue_y > 0.8 || - blue_x + blue_y > 1.0) - { - png_warning(png_ptr, "Invalid cHRM blue point specified"); - return; - } - itemp = (png_uint_32)(blue_x * 100000.0 + 0.5); - png_save_uint_32(buf + 24, itemp); - itemp = (png_uint_32)(blue_y * 100000.0 + 0.5); - png_save_uint_32(buf + 28, itemp); - - png_write_chunk(png_ptr, (png_bytep)png_cHRM, buf, (png_size_t)32); -} -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -void /* PRIVATE */ -png_write_cHRM_fixed(png_structp png_ptr, png_fixed_point white_x, - png_fixed_point white_y, png_fixed_point red_x, png_fixed_point red_y, - png_fixed_point green_x, png_fixed_point green_y, png_fixed_point blue_x, - png_fixed_point blue_y) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_cHRM; -#endif - png_byte buf[32]; - - png_debug(1, "in png_write_cHRM\n"); - /* each value is saved in 1/100,000ths */ - if (white_x > 80000L || white_y > 80000L || white_x + white_y > 100000L) - { - png_warning(png_ptr, "Invalid fixed cHRM white point specified"); -#if !defined(PNG_NO_CONSOLE_IO) - fprintf(stderr,"white_x=%ld, white_y=%ld\n",white_x, white_y); -#endif - return; - } - png_save_uint_32(buf, (png_uint_32)white_x); - png_save_uint_32(buf + 4, (png_uint_32)white_y); - - if (red_x > 80000L || red_y > 80000L || red_x + red_y > 100000L) - { - png_warning(png_ptr, "Invalid cHRM fixed red point specified"); - return; - } - png_save_uint_32(buf + 8, (png_uint_32)red_x); - png_save_uint_32(buf + 12, (png_uint_32)red_y); - - if (green_x > 80000L || green_y > 80000L || green_x + green_y > 100000L) - { - png_warning(png_ptr, "Invalid fixed cHRM green point specified"); - return; - } - png_save_uint_32(buf + 16, (png_uint_32)green_x); - png_save_uint_32(buf + 20, (png_uint_32)green_y); - - if (blue_x > 80000L || blue_y > 80000L || blue_x + blue_y > 100000L) - { - png_warning(png_ptr, "Invalid fixed cHRM blue point specified"); - return; - } - png_save_uint_32(buf + 24, (png_uint_32)blue_x); - png_save_uint_32(buf + 28, (png_uint_32)blue_y); - - png_write_chunk(png_ptr, (png_bytep)png_cHRM, buf, (png_size_t)32); -} -#endif -#endif - -#if defined(PNG_WRITE_tRNS_SUPPORTED) -/* write the tRNS chunk */ -void /* PRIVATE */ -png_write_tRNS(png_structp png_ptr, png_bytep trans, png_color_16p tran, - int num_trans, int color_type) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_tRNS; -#endif - png_byte buf[6]; - - png_debug(1, "in png_write_tRNS\n"); - if (color_type == PNG_COLOR_TYPE_PALETTE) - { - if (num_trans <= 0 || num_trans > (int)png_ptr->num_palette) - { - png_warning(png_ptr,"Invalid number of transparent colors specified"); - return; - } - /* write the chunk out as it is */ - png_write_chunk(png_ptr, (png_bytep)png_tRNS, trans, (png_size_t)num_trans); - } - else if (color_type == PNG_COLOR_TYPE_GRAY) - { - /* one 16 bit value */ - if(tran->gray >= (1 << png_ptr->bit_depth)) - { - png_warning(png_ptr, - "Ignoring attempt to write tRNS chunk out-of-range for bit_depth"); - return; - } - png_save_uint_16(buf, tran->gray); - png_write_chunk(png_ptr, (png_bytep)png_tRNS, buf, (png_size_t)2); - } - else if (color_type == PNG_COLOR_TYPE_RGB) - { - /* three 16 bit values */ - png_save_uint_16(buf, tran->red); - png_save_uint_16(buf + 2, tran->green); - png_save_uint_16(buf + 4, tran->blue); - if(png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4])) - { - png_warning(png_ptr, - "Ignoring attempt to write 16-bit tRNS chunk when bit_depth is 8"); - return; - } - png_write_chunk(png_ptr, (png_bytep)png_tRNS, buf, (png_size_t)6); - } - else - { - png_warning(png_ptr, "Can't write tRNS with an alpha channel"); - } -} -#endif - -#if defined(PNG_WRITE_bKGD_SUPPORTED) -/* write the background chunk */ -void /* PRIVATE */ -png_write_bKGD(png_structp png_ptr, png_color_16p back, int color_type) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_bKGD; -#endif - png_byte buf[6]; - - png_debug(1, "in png_write_bKGD\n"); - if (color_type == PNG_COLOR_TYPE_PALETTE) - { - if ( -#if defined(PNG_MNG_FEATURES_SUPPORTED) - (png_ptr->num_palette || - (!(png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE))) && -#endif - back->index > png_ptr->num_palette) - { - png_warning(png_ptr, "Invalid background palette index"); - return; - } - buf[0] = back->index; - png_write_chunk(png_ptr, (png_bytep)png_bKGD, buf, (png_size_t)1); - } - else if (color_type & PNG_COLOR_MASK_COLOR) - { - png_save_uint_16(buf, back->red); - png_save_uint_16(buf + 2, back->green); - png_save_uint_16(buf + 4, back->blue); - if(png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4])) - { - png_warning(png_ptr, - "Ignoring attempt to write 16-bit bKGD chunk when bit_depth is 8"); - return; - } - png_write_chunk(png_ptr, (png_bytep)png_bKGD, buf, (png_size_t)6); - } - else - { - if(back->gray >= (1 << png_ptr->bit_depth)) - { - png_warning(png_ptr, - "Ignoring attempt to write bKGD chunk out-of-range for bit_depth"); - return; - } - png_save_uint_16(buf, back->gray); - png_write_chunk(png_ptr, (png_bytep)png_bKGD, buf, (png_size_t)2); - } -} -#endif - -#if defined(PNG_WRITE_hIST_SUPPORTED) -/* write the histogram */ -void /* PRIVATE */ -png_write_hIST(png_structp png_ptr, png_uint_16p hist, int num_hist) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_hIST; -#endif - int i; - png_byte buf[3]; - - png_debug(1, "in png_write_hIST\n"); - if (num_hist > (int)png_ptr->num_palette) - { - png_debug2(3, "num_hist = %d, num_palette = %d\n", num_hist, - png_ptr->num_palette); - png_warning(png_ptr, "Invalid number of histogram entries specified"); - return; - } - - png_write_chunk_start(png_ptr, (png_bytep)png_hIST, (png_uint_32)(num_hist * 2)); - for (i = 0; i < num_hist; i++) - { - png_save_uint_16(buf, hist[i]); - png_write_chunk_data(png_ptr, buf, (png_size_t)2); - } - png_write_chunk_end(png_ptr); -} -#endif - -#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_pCAL_SUPPORTED) || \ - defined(PNG_WRITE_iCCP_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED) -/* Check that the tEXt or zTXt keyword is valid per PNG 1.0 specification, - * and if invalid, correct the keyword rather than discarding the entire - * chunk. The PNG 1.0 specification requires keywords 1-79 characters in - * length, forbids leading or trailing whitespace, multiple internal spaces, - * and the non-break space (0x80) from ISO 8859-1. Returns keyword length. - * - * The new_key is allocated to hold the corrected keyword and must be freed - * by the calling routine. This avoids problems with trying to write to - * static keywords without having to have duplicate copies of the strings. - */ -png_size_t /* PRIVATE */ -png_check_keyword(png_structp png_ptr, png_charp key, png_charpp new_key) -{ - png_size_t key_len; - png_charp kp, dp; - int kflag; - int kwarn=0; - - png_debug(1, "in png_check_keyword\n"); - *new_key = NULL; - - if (key == NULL || (key_len = png_strlen(key)) == 0) - { - png_warning(png_ptr, "zero length keyword"); - return ((png_size_t)0); - } - - png_debug1(2, "Keyword to be checked is '%s'\n", key); - - *new_key = (png_charp)png_malloc(png_ptr, (png_uint_32)(key_len + 2)); - - /* Replace non-printing characters with a blank and print a warning */ - for (kp = key, dp = *new_key; *kp != '\0'; kp++, dp++) - { - if (*kp < 0x20 || (*kp > 0x7E && (png_byte)*kp < 0xA1)) - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char msg[40]; - - sprintf(msg, "invalid keyword character 0x%02X", *kp); - png_warning(png_ptr, msg); -#else - png_warning(png_ptr, "invalid character in keyword"); -#endif - *dp = ' '; - } - else - { - *dp = *kp; - } - } - *dp = '\0'; - - /* Remove any trailing white space. */ - kp = *new_key + key_len - 1; - if (*kp == ' ') - { - png_warning(png_ptr, "trailing spaces removed from keyword"); - - while (*kp == ' ') - { - *(kp--) = '\0'; - key_len--; - } - } - - /* Remove any leading white space. */ - kp = *new_key; - if (*kp == ' ') - { - png_warning(png_ptr, "leading spaces removed from keyword"); - - while (*kp == ' ') - { - kp++; - key_len--; - } - } - - png_debug1(2, "Checking for multiple internal spaces in '%s'\n", kp); - - /* Remove multiple internal spaces. */ - for (kflag = 0, dp = *new_key; *kp != '\0'; kp++) - { - if (*kp == ' ' && kflag == 0) - { - *(dp++) = *kp; - kflag = 1; - } - else if (*kp == ' ') - { - key_len--; - kwarn=1; - } - else - { - *(dp++) = *kp; - kflag = 0; - } - } - *dp = '\0'; - if(kwarn) - png_warning(png_ptr, "extra interior spaces removed from keyword"); - - if (key_len == 0) - { - png_free(png_ptr, *new_key); - *new_key=NULL; - png_warning(png_ptr, "Zero length keyword"); - } - - if (key_len > 79) - { - png_warning(png_ptr, "keyword length must be 1 - 79 characters"); - new_key[79] = '\0'; - key_len = 79; - } - - return (key_len); -} -#endif - -#if defined(PNG_WRITE_tEXt_SUPPORTED) -/* write a tEXt chunk */ -void /* PRIVATE */ -png_write_tEXt(png_structp png_ptr, png_charp key, png_charp text, - png_size_t text_len) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_tEXt; -#endif - png_size_t key_len; - png_charp new_key; - - png_debug(1, "in png_write_tEXt\n"); - if (key == NULL || (key_len = png_check_keyword(png_ptr, key, &new_key))==0) - { - png_warning(png_ptr, "Empty keyword in tEXt chunk"); - return; - } - - if (text == NULL || *text == '\0') - text_len = 0; - else - text_len = png_strlen(text); - - /* make sure we include the 0 after the key */ - png_write_chunk_start(png_ptr, (png_bytep)png_tEXt, (png_uint_32)key_len+text_len+1); - /* - * We leave it to the application to meet PNG-1.0 requirements on the - * contents of the text. PNG-1.0 through PNG-1.2 discourage the use of - * any non-Latin-1 characters except for NEWLINE. ISO PNG will forbid them. - * The NUL character is forbidden by PNG-1.0 through PNG-1.2 and ISO PNG. - */ - png_write_chunk_data(png_ptr, (png_bytep)new_key, key_len + 1); - if (text_len) - png_write_chunk_data(png_ptr, (png_bytep)text, text_len); - - png_write_chunk_end(png_ptr); - png_free(png_ptr, new_key); -} -#endif - -#if defined(PNG_WRITE_zTXt_SUPPORTED) -/* write a compressed text chunk */ -void /* PRIVATE */ -png_write_zTXt(png_structp png_ptr, png_charp key, png_charp text, - png_size_t text_len, int compression) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_zTXt; -#endif - png_size_t key_len; - char buf[1]; - png_charp new_key; - compression_state comp; - - png_debug(1, "in png_write_zTXt\n"); - - if (key == NULL || (key_len = png_check_keyword(png_ptr, key, &new_key))==0) - { - png_warning(png_ptr, "Empty keyword in zTXt chunk"); - return; - } - - if (text == NULL || *text == '\0' || compression==PNG_TEXT_COMPRESSION_NONE) - { - png_write_tEXt(png_ptr, new_key, text, (png_size_t)0); - png_free(png_ptr, new_key); - return; - } - - text_len = png_strlen(text); - - png_free(png_ptr, new_key); - - /* compute the compressed data; do it now for the length */ - text_len = png_text_compress(png_ptr, text, text_len, compression, - &comp); - - /* write start of chunk */ - png_write_chunk_start(png_ptr, (png_bytep)png_zTXt, (png_uint_32) - (key_len+text_len+2)); - /* write key */ - png_write_chunk_data(png_ptr, (png_bytep)key, key_len + 1); - buf[0] = (png_byte)compression; - /* write compression */ - png_write_chunk_data(png_ptr, (png_bytep)buf, (png_size_t)1); - /* write the compressed data */ - png_write_compressed_data_out(png_ptr, &comp); - - /* close the chunk */ - png_write_chunk_end(png_ptr); -} -#endif - -#if defined(PNG_WRITE_iTXt_SUPPORTED) -/* write an iTXt chunk */ -void /* PRIVATE */ -png_write_iTXt(png_structp png_ptr, int compression, png_charp key, - png_charp lang, png_charp lang_key, png_charp text) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_iTXt; -#endif - png_size_t lang_len, key_len, lang_key_len, text_len; - png_charp new_lang, new_key; - png_byte cbuf[2]; - compression_state comp; - - png_debug(1, "in png_write_iTXt\n"); - - if (key == NULL || (key_len = png_check_keyword(png_ptr, key, &new_key))==0) - { - png_warning(png_ptr, "Empty keyword in iTXt chunk"); - return; - } - if (lang == NULL || (lang_len = png_check_keyword(png_ptr, lang, &new_lang))==0) - { - png_warning(png_ptr, "Empty language field in iTXt chunk"); - new_lang = NULL; - lang_len = 0; - } - - if (lang_key == NULL) - lang_key_len = 0; - else - lang_key_len = png_strlen(lang_key); - - if (text == NULL) - text_len = 0; - else - text_len = png_strlen(text); - - /* compute the compressed data; do it now for the length */ - text_len = png_text_compress(png_ptr, text, text_len, compression-2, - &comp); - - - /* make sure we include the compression flag, the compression byte, - * and the NULs after the key, lang, and lang_key parts */ - - png_write_chunk_start(png_ptr, (png_bytep)png_iTXt, - (png_uint_32)( - 5 /* comp byte, comp flag, terminators for key, lang and lang_key */ - + key_len - + lang_len - + lang_key_len - + text_len)); - - /* - * We leave it to the application to meet PNG-1.0 requirements on the - * contents of the text. PNG-1.0 through PNG-1.2 discourage the use of - * any non-Latin-1 characters except for NEWLINE. ISO PNG will forbid them. - * The NUL character is forbidden by PNG-1.0 through PNG-1.2 and ISO PNG. - */ - png_write_chunk_data(png_ptr, (png_bytep)new_key, key_len + 1); - - /* set the compression flag */ - if (compression == PNG_ITXT_COMPRESSION_NONE || \ - compression == PNG_TEXT_COMPRESSION_NONE) - cbuf[0] = 0; - else /* compression == PNG_ITXT_COMPRESSION_zTXt */ - cbuf[0] = 1; - /* set the compression method */ - cbuf[1] = 0; - png_write_chunk_data(png_ptr, cbuf, 2); - - cbuf[0] = 0; - png_write_chunk_data(png_ptr, (new_lang ? (png_bytep)new_lang : cbuf), lang_len + 1); - png_write_chunk_data(png_ptr, (lang_key ? (png_bytep)lang_key : cbuf), lang_key_len + 1); - png_write_compressed_data_out(png_ptr, &comp); - - png_write_chunk_end(png_ptr); - png_free(png_ptr, new_key); - if (new_lang) - png_free(png_ptr, new_lang); -} -#endif - -#if defined(PNG_WRITE_oFFs_SUPPORTED) -/* write the oFFs chunk */ -void /* PRIVATE */ -png_write_oFFs(png_structp png_ptr, png_int_32 x_offset, png_int_32 y_offset, - int unit_type) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_oFFs; -#endif - png_byte buf[9]; - - png_debug(1, "in png_write_oFFs\n"); - if (unit_type >= PNG_OFFSET_LAST) - png_warning(png_ptr, "Unrecognized unit type for oFFs chunk"); - - png_save_int_32(buf, x_offset); - png_save_int_32(buf + 4, y_offset); - buf[8] = (png_byte)unit_type; - - png_write_chunk(png_ptr, (png_bytep)png_oFFs, buf, (png_size_t)9); -} -#endif - -#if defined(PNG_WRITE_pCAL_SUPPORTED) -/* write the pCAL chunk (described in the PNG extensions document) */ -void /* PRIVATE */ -png_write_pCAL(png_structp png_ptr, png_charp purpose, png_int_32 X0, - png_int_32 X1, int type, int nparams, png_charp units, png_charpp params) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_pCAL; -#endif - png_size_t purpose_len, units_len, total_len; - png_uint_32p params_len; - png_byte buf[10]; - png_charp new_purpose; - int i; - - png_debug1(1, "in png_write_pCAL (%d parameters)\n", nparams); - if (type >= PNG_EQUATION_LAST) - png_warning(png_ptr, "Unrecognized equation type for pCAL chunk"); - - purpose_len = png_check_keyword(png_ptr, purpose, &new_purpose) + 1; - png_debug1(3, "pCAL purpose length = %d\n", (int)purpose_len); - units_len = png_strlen(units) + (nparams == 0 ? 0 : 1); - png_debug1(3, "pCAL units length = %d\n", (int)units_len); - total_len = purpose_len + units_len + 10; - - params_len = (png_uint_32p)png_malloc(png_ptr, (png_uint_32)(nparams - *sizeof(png_uint_32))); - - /* Find the length of each parameter, making sure we don't count the - null terminator for the last parameter. */ - for (i = 0; i < nparams; i++) - { - params_len[i] = png_strlen(params[i]) + (i == nparams - 1 ? 0 : 1); - png_debug2(3, "pCAL parameter %d length = %lu\n", i, params_len[i]); - total_len += (png_size_t)params_len[i]; - } - - png_debug1(3, "pCAL total length = %d\n", (int)total_len); - png_write_chunk_start(png_ptr, (png_bytep)png_pCAL, (png_uint_32)total_len); - png_write_chunk_data(png_ptr, (png_bytep)new_purpose, purpose_len); - png_save_int_32(buf, X0); - png_save_int_32(buf + 4, X1); - buf[8] = (png_byte)type; - buf[9] = (png_byte)nparams; - png_write_chunk_data(png_ptr, buf, (png_size_t)10); - png_write_chunk_data(png_ptr, (png_bytep)units, (png_size_t)units_len); - - png_free(png_ptr, new_purpose); - - for (i = 0; i < nparams; i++) - { - png_write_chunk_data(png_ptr, (png_bytep)params[i], - (png_size_t)params_len[i]); - } - - png_free(png_ptr, params_len); - png_write_chunk_end(png_ptr); -} -#endif - -#if defined(PNG_WRITE_sCAL_SUPPORTED) -/* write the sCAL chunk */ -#if defined(PNG_FLOATING_POINT_SUPPORTED) && !defined(PNG_NO_STDIO) -void /* PRIVATE */ -png_write_sCAL(png_structp png_ptr, int unit, double width,double height) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_sCAL; -#endif - png_size_t total_len; - char wbuf[32], hbuf[32]; - - png_debug(1, "in png_write_sCAL\n"); - -#if defined(_WIN32_WCE) -/* sprintf() function is not supported on WindowsCE */ - { - wchar_t wc_buf[32]; - swprintf(wc_buf, TEXT("%12.12e"), width); - WideCharToMultiByte(CP_ACP, 0, wc_buf, -1, wbuf, 32, NULL, NULL); - swprintf(wc_buf, TEXT("%12.12e"), height); - WideCharToMultiByte(CP_ACP, 0, wc_buf, -1, hbuf, 32, NULL, NULL); - } -#else - sprintf(wbuf, "%12.12e", width); - sprintf(hbuf, "%12.12e", height); -#endif - total_len = 1 + png_strlen(wbuf)+1 + png_strlen(hbuf); - - png_debug1(3, "sCAL total length = %d\n", (int)total_len); - png_write_chunk_start(png_ptr, (png_bytep)png_sCAL, (png_uint_32)total_len); - png_write_chunk_data(png_ptr, (png_bytep)&unit, 1); - png_write_chunk_data(png_ptr, (png_bytep)wbuf, png_strlen(wbuf)+1); - png_write_chunk_data(png_ptr, (png_bytep)hbuf, png_strlen(hbuf)); - - png_write_chunk_end(png_ptr); -} -#else -#ifdef PNG_FIXED_POINT_SUPPORTED -void /* PRIVATE */ -png_write_sCAL_s(png_structp png_ptr, int unit, png_charp width, - png_charp height) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_sCAL; -#endif - png_size_t total_len; - char wbuf[32], hbuf[32]; - - png_debug(1, "in png_write_sCAL_s\n"); - - png_strcpy(wbuf,(const char *)width); - png_strcpy(hbuf,(const char *)height); - total_len = 1 + png_strlen(wbuf)+1 + png_strlen(hbuf); - - png_debug1(3, "sCAL total length = %d\n", total_len); - png_write_chunk_start(png_ptr, (png_bytep)png_sCAL, (png_uint_32)total_len); - png_write_chunk_data(png_ptr, (png_bytep)&unit, 1); - png_write_chunk_data(png_ptr, (png_bytep)wbuf, png_strlen(wbuf)+1); - png_write_chunk_data(png_ptr, (png_bytep)hbuf, png_strlen(hbuf)); - - png_write_chunk_end(png_ptr); -} -#endif -#endif -#endif - -#if defined(PNG_WRITE_pHYs_SUPPORTED) -/* write the pHYs chunk */ -void /* PRIVATE */ -png_write_pHYs(png_structp png_ptr, png_uint_32 x_pixels_per_unit, - png_uint_32 y_pixels_per_unit, - int unit_type) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_pHYs; -#endif - png_byte buf[9]; - - png_debug(1, "in png_write_pHYs\n"); - if (unit_type >= PNG_RESOLUTION_LAST) - png_warning(png_ptr, "Unrecognized unit type for pHYs chunk"); - - png_save_uint_32(buf, x_pixels_per_unit); - png_save_uint_32(buf + 4, y_pixels_per_unit); - buf[8] = (png_byte)unit_type; - - png_write_chunk(png_ptr, (png_bytep)png_pHYs, buf, (png_size_t)9); -} -#endif - -#if defined(PNG_WRITE_tIME_SUPPORTED) -/* Write the tIME chunk. Use either png_convert_from_struct_tm() - * or png_convert_from_time_t(), or fill in the structure yourself. - */ -void /* PRIVATE */ -png_write_tIME(png_structp png_ptr, png_timep mod_time) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_tIME; -#endif - png_byte buf[7]; - - png_debug(1, "in png_write_tIME\n"); - if (mod_time->month > 12 || mod_time->month < 1 || - mod_time->day > 31 || mod_time->day < 1 || - mod_time->hour > 23 || mod_time->second > 60) - { - png_warning(png_ptr, "Invalid time specified for tIME chunk"); - return; - } - - png_save_uint_16(buf, mod_time->year); - buf[2] = mod_time->month; - buf[3] = mod_time->day; - buf[4] = mod_time->hour; - buf[5] = mod_time->minute; - buf[6] = mod_time->second; - - png_write_chunk(png_ptr, (png_bytep)png_tIME, buf, (png_size_t)7); -} -#endif - -/* initializes the row writing capability of libpng */ -void /* PRIVATE */ -png_write_start_row(png_structp png_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* start of interlace block */ - int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* offset to next interlace block */ - int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - /* start of interlace block in the y direction */ - int png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; - - /* offset to next interlace block in the y direction */ - int png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; -#endif - - png_size_t buf_size; - - png_debug(1, "in png_write_start_row\n"); - buf_size = (png_size_t)(((png_ptr->width * png_ptr->usr_channels * - png_ptr->usr_bit_depth + 7) >> 3) + 1); - - /* set up row buffer */ - png_ptr->row_buf = (png_bytep)png_malloc(png_ptr, (png_uint_32)buf_size); - png_ptr->row_buf[0] = PNG_FILTER_VALUE_NONE; - - /* set up filtering buffer, if using this filter */ - if (png_ptr->do_filter & PNG_FILTER_SUB) - { - png_ptr->sub_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->sub_row[0] = PNG_FILTER_VALUE_SUB; - } - - /* We only need to keep the previous row if we are using one of these. */ - if (png_ptr->do_filter & (PNG_FILTER_AVG | PNG_FILTER_UP | PNG_FILTER_PAETH)) - { - /* set up previous row buffer */ - png_ptr->prev_row = (png_bytep)png_malloc(png_ptr, (png_uint_32)buf_size); - png_memset(png_ptr->prev_row, 0, buf_size); - - if (png_ptr->do_filter & PNG_FILTER_UP) - { - png_ptr->up_row = (png_bytep )png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->up_row[0] = PNG_FILTER_VALUE_UP; - } - - if (png_ptr->do_filter & PNG_FILTER_AVG) - { - png_ptr->avg_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->avg_row[0] = PNG_FILTER_VALUE_AVG; - } - - if (png_ptr->do_filter & PNG_FILTER_PAETH) - { - png_ptr->paeth_row = (png_bytep )png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->paeth_row[0] = PNG_FILTER_VALUE_PAETH; - } - } - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - /* if interlaced, we need to set up width and height of pass */ - if (png_ptr->interlaced) - { - if (!(png_ptr->transformations & PNG_INTERLACE)) - { - png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 - - png_pass_ystart[0]) / png_pass_yinc[0]; - png_ptr->usr_width = (png_ptr->width + png_pass_inc[0] - 1 - - png_pass_start[0]) / png_pass_inc[0]; - } - else - { - png_ptr->num_rows = png_ptr->height; - png_ptr->usr_width = png_ptr->width; - } - } - else -#endif - { - png_ptr->num_rows = png_ptr->height; - png_ptr->usr_width = png_ptr->width; - } - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - png_ptr->zstream.next_out = png_ptr->zbuf; -} - -/* Internal use only. Called when finished processing a row of data. */ -void /* PRIVATE */ -png_write_finish_row(png_structp png_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* start of interlace block */ - int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* offset to next interlace block */ - int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - /* start of interlace block in the y direction */ - int png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; - - /* offset to next interlace block in the y direction */ - int png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; -#endif - - int ret; - - png_debug(1, "in png_write_finish_row\n"); - /* next row */ - png_ptr->row_number++; - - /* see if we are done */ - if (png_ptr->row_number < png_ptr->num_rows) - return; - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - /* if interlaced, go to next pass */ - if (png_ptr->interlaced) - { - png_ptr->row_number = 0; - if (png_ptr->transformations & PNG_INTERLACE) - { - png_ptr->pass++; - } - else - { - /* loop until we find a non-zero width or height pass */ - do - { - png_ptr->pass++; - if (png_ptr->pass >= 7) - break; - png_ptr->usr_width = (png_ptr->width + - png_pass_inc[png_ptr->pass] - 1 - - png_pass_start[png_ptr->pass]) / - png_pass_inc[png_ptr->pass]; - png_ptr->num_rows = (png_ptr->height + - png_pass_yinc[png_ptr->pass] - 1 - - png_pass_ystart[png_ptr->pass]) / - png_pass_yinc[png_ptr->pass]; - if (png_ptr->transformations & PNG_INTERLACE) - break; - } while (png_ptr->usr_width == 0 || png_ptr->num_rows == 0); - - } - - /* reset the row above the image for the next pass */ - if (png_ptr->pass < 7) - { - if (png_ptr->prev_row != NULL) - png_memset(png_ptr->prev_row, 0, - (png_size_t) (((png_uint_32)png_ptr->usr_channels * - (png_uint_32)png_ptr->usr_bit_depth * - png_ptr->width + 7) >> 3) + 1); - return; - } - } -#endif - - /* if we get here, we've just written the last row, so we need - to flush the compressor */ - do - { - /* tell the compressor we are done */ - ret = deflate(&png_ptr->zstream, Z_FINISH); - /* check for an error */ - if (ret == Z_OK) - { - /* check to see if we need more room */ - if (!(png_ptr->zstream.avail_out)) - { - png_write_IDAT(png_ptr, png_ptr->zbuf, png_ptr->zbuf_size); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - } - } - else if (ret != Z_STREAM_END) - { - if (png_ptr->zstream.msg != NULL) - png_error(png_ptr, png_ptr->zstream.msg); - else - png_error(png_ptr, "zlib error"); - } - } while (ret != Z_STREAM_END); - - /* write any extra space */ - if (png_ptr->zstream.avail_out < png_ptr->zbuf_size) - { - png_write_IDAT(png_ptr, png_ptr->zbuf, png_ptr->zbuf_size - - png_ptr->zstream.avail_out); - } - - deflateReset(&png_ptr->zstream); -} - -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) -/* Pick out the correct pixels for the interlace pass. - * The basic idea here is to go through the row with a source - * pointer and a destination pointer (sp and dp), and copy the - * correct pixels for the pass. As the row gets compacted, - * sp will always be >= dp, so we should never overwrite anything. - * See the default: case for the easiest code to understand. - */ -void /* PRIVATE */ -png_do_write_interlace(png_row_infop row_info, png_bytep row, int pass) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* start of interlace block */ - int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* offset to next interlace block */ - int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; -#endif - - png_debug(1, "in png_do_write_interlace\n"); - /* we don't have to do anything on the last pass (6) */ -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL && pass < 6) -#else - if (pass < 6) -#endif - { - /* each pixel depth is handled separately */ - switch (row_info->pixel_depth) - { - case 1: - { - png_bytep sp; - png_bytep dp; - int shift; - int d; - int value; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - dp = row; - d = 0; - shift = 7; - for (i = png_pass_start[pass]; i < row_width; - i += png_pass_inc[pass]) - { - sp = row + (png_size_t)(i >> 3); - value = (int)(*sp >> (7 - (int)(i & 0x07))) & 0x01; - d |= (value << shift); - - if (shift == 0) - { - shift = 7; - *dp++ = (png_byte)d; - d = 0; - } - else - shift--; - - } - if (shift != 7) - *dp = (png_byte)d; - break; - } - case 2: - { - png_bytep sp; - png_bytep dp; - int shift; - int d; - int value; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - dp = row; - shift = 6; - d = 0; - for (i = png_pass_start[pass]; i < row_width; - i += png_pass_inc[pass]) - { - sp = row + (png_size_t)(i >> 2); - value = (*sp >> ((3 - (int)(i & 0x03)) << 1)) & 0x03; - d |= (value << shift); - - if (shift == 0) - { - shift = 6; - *dp++ = (png_byte)d; - d = 0; - } - else - shift -= 2; - } - if (shift != 6) - *dp = (png_byte)d; - break; - } - case 4: - { - png_bytep sp; - png_bytep dp; - int shift; - int d; - int value; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - dp = row; - shift = 4; - d = 0; - for (i = png_pass_start[pass]; i < row_width; - i += png_pass_inc[pass]) - { - sp = row + (png_size_t)(i >> 1); - value = (*sp >> ((1 - (int)(i & 0x01)) << 2)) & 0x0f; - d |= (value << shift); - - if (shift == 0) - { - shift = 4; - *dp++ = (png_byte)d; - d = 0; - } - else - shift -= 4; - } - if (shift != 4) - *dp = (png_byte)d; - break; - } - default: - { - png_bytep sp; - png_bytep dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - png_size_t pixel_bytes; - - /* start at the beginning */ - dp = row; - /* find out how many bytes each pixel takes up */ - pixel_bytes = (row_info->pixel_depth >> 3); - /* loop through the row, only looking at the pixels that - matter */ - for (i = png_pass_start[pass]; i < row_width; - i += png_pass_inc[pass]) - { - /* find out where the original pixel is */ - sp = row + (png_size_t)i * pixel_bytes; - /* move the pixel */ - if (dp != sp) - png_memcpy(dp, sp, pixel_bytes); - /* next pixel */ - dp += pixel_bytes; - } - break; - } - } - /* set new row width */ - row_info->width = (row_info->width + - png_pass_inc[pass] - 1 - - png_pass_start[pass]) / - png_pass_inc[pass]; - row_info->rowbytes = ((row_info->width * - row_info->pixel_depth + 7) >> 3); - } -} -#endif - -/* This filters the row, chooses which filter to use, if it has not already - * been specified by the application, and then writes the row out with the - * chosen filter. - */ -#define PNG_MAXSUM (~((png_uint_32)0) >> 1) -#define PNG_HISHIFT 10 -#define PNG_LOMASK ((png_uint_32)0xffffL) -#define PNG_HIMASK ((png_uint_32)(~PNG_LOMASK >> PNG_HISHIFT)) -void /* PRIVATE */ -png_write_find_filter(png_structp png_ptr, png_row_infop row_info) -{ - png_bytep prev_row, best_row, row_buf; - png_uint_32 mins, bpp; - png_byte filter_to_do = png_ptr->do_filter; - png_uint_32 row_bytes = row_info->rowbytes; -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - int num_p_filters = (int)png_ptr->num_prev_filters; -#endif - - png_debug(1, "in png_write_find_filter\n"); - /* find out how many bytes offset each pixel is */ - bpp = (row_info->pixel_depth + 7) / 8; - - prev_row = png_ptr->prev_row; - best_row = row_buf = png_ptr->row_buf; - mins = PNG_MAXSUM; - - /* The prediction method we use is to find which method provides the - * smallest value when summing the absolute values of the distances - * from zero, using anything >= 128 as negative numbers. This is known - * as the "minimum sum of absolute differences" heuristic. Other - * heuristics are the "weighted minimum sum of absolute differences" - * (experimental and can in theory improve compression), and the "zlib - * predictive" method (not implemented yet), which does test compressions - * of lines using different filter methods, and then chooses the - * (series of) filter(s) that give minimum compressed data size (VERY - * computationally expensive). - * - * GRR 980525: consider also - * (1) minimum sum of absolute differences from running average (i.e., - * keep running sum of non-absolute differences & count of bytes) - * [track dispersion, too? restart average if dispersion too large?] - * (1b) minimum sum of absolute differences from sliding average, probably - * with window size <= deflate window (usually 32K) - * (2) minimum sum of squared differences from zero or running average - * (i.e., ~ root-mean-square approach) - */ - - - /* We don't need to test the 'no filter' case if this is the only filter - * that has been chosen, as it doesn't actually do anything to the data. - */ - if ((filter_to_do & PNG_FILTER_NONE) && - filter_to_do != PNG_FILTER_NONE) - { - png_bytep rp; - png_uint_32 sum = 0; - png_uint_32 i; - int v; - - for (i = 0, rp = row_buf + 1; i < row_bytes; i++, rp++) - { - v = *rp; - sum += (v < 128) ? v : 256 - v; - } - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - png_uint_32 sumhi, sumlo; - int j; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; /* Gives us some footroom */ - - /* Reduce the sum if we match any of the previous rows */ - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_NONE) - { - sumlo = (sumlo * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - sumhi = (sumhi * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - /* Factor in the cost of this filter (this is here for completeness, - * but it makes no sense to have a "cost" for the NONE filter, as - * it has the minimum possible computational cost - none). - */ - sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_NONE]) >> - PNG_COST_SHIFT; - sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_NONE]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - mins = sum; - } - - /* sub filter */ - if (filter_to_do == PNG_FILTER_SUB) - /* it's the only filter so no testing is needed */ - { - png_bytep rp, lp, dp; - png_uint_32 i; - for (i = 0, rp = row_buf + 1, dp = png_ptr->sub_row + 1; i < bpp; - i++, rp++, dp++) - { - *dp = *rp; - } - for (lp = row_buf + 1; i < row_bytes; - i++, rp++, lp++, dp++) - { - *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff); - } - best_row = png_ptr->sub_row; - } - - else if (filter_to_do & PNG_FILTER_SUB) - { - png_bytep rp, dp, lp; - png_uint_32 sum = 0, lmins = mins; - png_uint_32 i; - int v; - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - /* We temporarily increase the "minimum sum" by the factor we - * would reduce the sum of this filter, so that we can do the - * early exit comparison without scaling the sum each time. - */ - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 lmhi, lmlo; - lmlo = lmins & PNG_LOMASK; - lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_SUB) - { - lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> - PNG_COST_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> - PNG_COST_SHIFT; - - if (lmhi > PNG_HIMASK) - lmins = PNG_MAXSUM; - else - lmins = (lmhi << PNG_HISHIFT) + lmlo; - } -#endif - - for (i = 0, rp = row_buf + 1, dp = png_ptr->sub_row + 1; i < bpp; - i++, rp++, dp++) - { - v = *dp = *rp; - - sum += (v < 128) ? v : 256 - v; - } - for (lp = row_buf + 1; i < row_info->rowbytes; - i++, rp++, lp++, dp++) - { - v = *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff); - - sum += (v < 128) ? v : 256 - v; - - if (sum > lmins) /* We are already worse, don't continue. */ - break; - } - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 sumhi, sumlo; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_SUB) - { - sumlo = (sumlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - sumhi = (sumhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - sumlo = (sumlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> - PNG_COST_SHIFT; - sumhi = (sumhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - - if (sum < mins) - { - mins = sum; - best_row = png_ptr->sub_row; - } - } - - /* up filter */ - if (filter_to_do == PNG_FILTER_UP) - { - png_bytep rp, dp, pp; - png_uint_32 i; - - for (i = 0, rp = row_buf + 1, dp = png_ptr->up_row + 1, - pp = prev_row + 1; i < row_bytes; - i++, rp++, pp++, dp++) - { - *dp = (png_byte)(((int)*rp - (int)*pp) & 0xff); - } - best_row = png_ptr->up_row; - } - - else if (filter_to_do & PNG_FILTER_UP) - { - png_bytep rp, dp, pp; - png_uint_32 sum = 0, lmins = mins; - png_uint_32 i; - int v; - - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 lmhi, lmlo; - lmlo = lmins & PNG_LOMASK; - lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_UP) - { - lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_UP]) >> - PNG_COST_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_UP]) >> - PNG_COST_SHIFT; - - if (lmhi > PNG_HIMASK) - lmins = PNG_MAXSUM; - else - lmins = (lmhi << PNG_HISHIFT) + lmlo; - } -#endif - - for (i = 0, rp = row_buf + 1, dp = png_ptr->up_row + 1, - pp = prev_row + 1; i < row_bytes; i++) - { - v = *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff); - - sum += (v < 128) ? v : 256 - v; - - if (sum > lmins) /* We are already worse, don't continue. */ - break; - } - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 sumhi, sumlo; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_UP) - { - sumlo = (sumlo * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - sumhi = (sumhi * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_UP]) >> - PNG_COST_SHIFT; - sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_UP]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - - if (sum < mins) - { - mins = sum; - best_row = png_ptr->up_row; - } - } - - /* avg filter */ - if (filter_to_do == PNG_FILTER_AVG) - { - png_bytep rp, dp, pp, lp; - png_uint_32 i; - for (i = 0, rp = row_buf + 1, dp = png_ptr->avg_row + 1, - pp = prev_row + 1; i < bpp; i++) - { - *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff); - } - for (lp = row_buf + 1; i < row_bytes; i++) - { - *dp++ = (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2)) - & 0xff); - } - best_row = png_ptr->avg_row; - } - - else if (filter_to_do & PNG_FILTER_AVG) - { - png_bytep rp, dp, pp, lp; - png_uint_32 sum = 0, lmins = mins; - png_uint_32 i; - int v; - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 lmhi, lmlo; - lmlo = lmins & PNG_LOMASK; - lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_AVG) - { - lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_AVG]) >> - PNG_COST_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_AVG]) >> - PNG_COST_SHIFT; - - if (lmhi > PNG_HIMASK) - lmins = PNG_MAXSUM; - else - lmins = (lmhi << PNG_HISHIFT) + lmlo; - } -#endif - - for (i = 0, rp = row_buf + 1, dp = png_ptr->avg_row + 1, - pp = prev_row + 1; i < bpp; i++) - { - v = *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff); - - sum += (v < 128) ? v : 256 - v; - } - for (lp = row_buf + 1; i < row_bytes; i++) - { - v = *dp++ = - (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2)) & 0xff); - - sum += (v < 128) ? v : 256 - v; - - if (sum > lmins) /* We are already worse, don't continue. */ - break; - } - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 sumhi, sumlo; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_NONE) - { - sumlo = (sumlo * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - sumhi = (sumhi * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_AVG]) >> - PNG_COST_SHIFT; - sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_AVG]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - - if (sum < mins) - { - mins = sum; - best_row = png_ptr->avg_row; - } - } - - /* Paeth filter */ - if (filter_to_do == PNG_FILTER_PAETH) - { - png_bytep rp, dp, pp, cp, lp; - png_uint_32 i; - for (i = 0, rp = row_buf + 1, dp = png_ptr->paeth_row + 1, - pp = prev_row + 1; i < bpp; i++) - { - *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff); - } - - for (lp = row_buf + 1, cp = prev_row + 1; i < row_bytes; i++) - { - int a, b, c, pa, pb, pc, p; - - b = *pp++; - c = *cp++; - a = *lp++; - - p = b - c; - pc = a - c; - -#ifdef PNG_USE_ABS - pa = abs(p); - pb = abs(pc); - pc = abs(p + pc); -#else - pa = p < 0 ? -p : p; - pb = pc < 0 ? -pc : pc; - pc = (p + pc) < 0 ? -(p + pc) : p + pc; -#endif - - p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c; - - *dp++ = (png_byte)(((int)*rp++ - p) & 0xff); - } - best_row = png_ptr->paeth_row; - } - - else if (filter_to_do & PNG_FILTER_PAETH) - { - png_bytep rp, dp, pp, cp, lp; - png_uint_32 sum = 0, lmins = mins; - png_uint_32 i; - int v; - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 lmhi, lmlo; - lmlo = lmins & PNG_LOMASK; - lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_PAETH) - { - lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_PAETH]) >> - PNG_COST_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_PAETH]) >> - PNG_COST_SHIFT; - - if (lmhi > PNG_HIMASK) - lmins = PNG_MAXSUM; - else - lmins = (lmhi << PNG_HISHIFT) + lmlo; - } -#endif - - for (i = 0, rp = row_buf + 1, dp = png_ptr->paeth_row + 1, - pp = prev_row + 1; i < bpp; i++) - { - v = *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff); - - sum += (v < 128) ? v : 256 - v; - } - - for (lp = row_buf + 1, cp = prev_row + 1; i < row_bytes; i++) - { - int a, b, c, pa, pb, pc, p; - - b = *pp++; - c = *cp++; - a = *lp++; - -#ifndef PNG_SLOW_PAETH - p = b - c; - pc = a - c; -#ifdef PNG_USE_ABS - pa = abs(p); - pb = abs(pc); - pc = abs(p + pc); -#else - pa = p < 0 ? -p : p; - pb = pc < 0 ? -pc : pc; - pc = (p + pc) < 0 ? -(p + pc) : p + pc; -#endif - p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c; -#else /* PNG_SLOW_PAETH */ - p = a + b - c; - pa = abs(p - a); - pb = abs(p - b); - pc = abs(p - c); - if (pa <= pb && pa <= pc) - p = a; - else if (pb <= pc) - p = b; - else - p = c; -#endif /* PNG_SLOW_PAETH */ - - v = *dp++ = (png_byte)(((int)*rp++ - p) & 0xff); - - sum += (v < 128) ? v : 256 - v; - - if (sum > lmins) /* We are already worse, don't continue. */ - break; - } - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 sumhi, sumlo; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_PAETH) - { - sumlo = (sumlo * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - sumhi = (sumhi * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_PAETH]) >> - PNG_COST_SHIFT; - sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_PAETH]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - - if (sum < mins) - { - best_row = png_ptr->paeth_row; - } - } - - /* Do the actual writing of the filtered row data from the chosen filter. */ - - png_write_filtered_row(png_ptr, best_row); - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - /* Save the type of filter we picked this time for future calculations */ - if (png_ptr->num_prev_filters > 0) - { - int j; - for (j = 1; j < num_p_filters; j++) - { - png_ptr->prev_filters[j] = png_ptr->prev_filters[j - 1]; - } - png_ptr->prev_filters[j] = best_row[0]; - } -#endif -} - - -/* Do the actual writing of a previously filtered row. */ -void /* PRIVATE */ -png_write_filtered_row(png_structp png_ptr, png_bytep filtered_row) -{ - png_debug(1, "in png_write_filtered_row\n"); - png_debug1(2, "filter = %d\n", filtered_row[0]); - /* set up the zlib input buffer */ - - png_ptr->zstream.next_in = filtered_row; - png_ptr->zstream.avail_in = (uInt)png_ptr->row_info.rowbytes + 1; - /* repeat until we have compressed all the data */ - do - { - int ret; /* return of zlib */ - - /* compress the data */ - ret = deflate(&png_ptr->zstream, Z_NO_FLUSH); - /* check for compression errors */ - if (ret != Z_OK) - { - if (png_ptr->zstream.msg != NULL) - png_error(png_ptr, png_ptr->zstream.msg); - else - png_error(png_ptr, "zlib error"); - } - - /* see if it is time to write another IDAT */ - if (!(png_ptr->zstream.avail_out)) - { - /* write the IDAT and reset the zlib output buffer */ - png_write_IDAT(png_ptr, png_ptr->zbuf, png_ptr->zbuf_size); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - } - /* repeat until all data has been compressed */ - } while (png_ptr->zstream.avail_in); - - /* swap the current and previous rows */ - if (png_ptr->prev_row != NULL) - { - png_bytep tptr; - - tptr = png_ptr->prev_row; - png_ptr->prev_row = png_ptr->row_buf; - png_ptr->row_buf = tptr; - } - - /* finish row - updates counters and flushes zlib if last row */ - png_write_finish_row(png_ptr); - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) - png_ptr->flush_rows++; - - if (png_ptr->flush_dist > 0 && - png_ptr->flush_rows >= png_ptr->flush_dist) - { - png_write_flush(png_ptr); - } -#endif -} -#endif /* PNG_WRITE_SUPPORTED */ diff --git a/collects/plot/src/all/ps.h b/collects/plot/src/all/ps.h deleted file mode 100644 index a672f0ca66..0000000000 --- a/collects/plot/src/all/ps.h +++ /dev/null @@ -1,70 +0,0 @@ -/* - * These definitions are for the Postscript (ps.c) and - * Postscript/LaTeX (pstex.c) drivers - */ - -#ifndef __PS_H__ -#define __PS_H__ - -/* top level declarations */ - -#define LINELENGTH 78 -#define COPIES 1 -#define XSIZE 540 /* 7.5 x 10 [inches] */ -#define YSIZE 720 /* (72 points = 1 inch) */ -#define ENLARGE 5 -#define XPSSIZE ENLARGE*XSIZE -#define YPSSIZE ENLARGE*YSIZE -#define XOFFSET 32 /* Margins -- */ -#define YOFFSET 32 /* .5 inches each */ -#define PSX XPSSIZE-1 -#define PSY YPSSIZE-1 -#define OF pls->OutFile -#define MIN_WIDTH 1 /* Minimum pen width */ -#define MAX_WIDTH 30 /* Maximum pen width */ -#define DEF_WIDTH 3 /* Default pen width */ - -/* These are for covering the page with the background color */ - -#define XMIN -XOFFSET*ENLARGE -#define XMAX PSX+XOFFSET*ENLARGE -#define YMIN -XOFFSET*ENLARGE -#define YMAX PSY+XOFFSET*ENLARGE - -/* Struct to hold device-specific info. */ - -typedef struct { - PLFLT pxlx, pxly; - PLINT xold, yold; - - PLINT xmin, xmax, xlen; - PLINT ymin, ymax, ylen; - - PLINT xmin_dev, xmax_dev, xlen_dev; - PLINT ymin_dev, ymax_dev, ylen_dev; - - PLFLT xscale_dev, yscale_dev; - - int llx, lly, urx, ury, ptcnt; -} PSDev; - -void plD_init_pstex (PLStream *); -void plD_line_pstex (PLStream *, short, short, short, short); -void plD_polyline_pstex (PLStream *, short *, short *, PLINT); -void plD_eop_pstex (PLStream *); -void plD_bop_pstex (PLStream *); -void plD_tidy_pstex (PLStream *); -void plD_state_pstex (PLStream *, PLINT); -void plD_esc_pstex (PLStream *, PLINT, void *); - -void plD_init_psm (PLStream *); -void plD_init_psc (PLStream *); -void plD_line_ps (PLStream *, short, short, short, short); -void plD_polyline_ps (PLStream *, short *, short *, PLINT); -void plD_eop_ps (PLStream *); -void plD_bop_ps (PLStream *); -void plD_tidy_ps (PLStream *); -void plD_state_ps (PLStream *, PLINT); -void plD_esc_ps (PLStream *, PLINT, void *); - -#endif /* __PS_H__ */ diff --git a/collects/plot/src/all/resource.h b/collects/plot/src/all/resource.h deleted file mode 100644 index f21f20f302..0000000000 --- a/collects/plot/src/all/resource.h +++ /dev/null @@ -1,24 +0,0 @@ -//{{NO_DEPENDENCIES}} -// Microsoft Developer Studio generated include file. -// Used by plplot.rc -// -#define IDR_MENU1 101 -#define IDI_ICON1 102 -#define PLCOMMANDS 106 -#define PLICON 107 -#define CM_NEXTPLOT 40002 -#define CM_PRINTPLOT 40003 -#define CM_EDITCOPY 40004 -#define CM_ABOUT 40005 - -// Next default values for new objects -// -#ifdef APSTUDIO_INVOKED -#ifndef APSTUDIO_READONLY_SYMBOLS -#define _APS_NO_MFC 1 -#define _APS_NEXT_RESOURCE_VALUE 108 -#define _APS_NEXT_COMMAND_VALUE 40006 -#define _APS_NEXT_CONTROL_VALUE 1000 -#define _APS_NEXT_SYMED_VALUE 101 -#endif -#endif diff --git a/collects/plot/src/all/trees.c b/collects/plot/src/all/trees.c deleted file mode 100644 index ea29ca1e4a..0000000000 --- a/collects/plot/src/all/trees.c +++ /dev/null @@ -1,1214 +0,0 @@ -/* trees.c -- output deflated data using Huffman coding - * Copyright (C) 1995-2002 Jean-loup Gailly - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * ALGORITHM - * - * The "deflation" process uses several Huffman trees. The more - * common source values are represented by shorter bit sequences. - * - * Each code tree is stored in a compressed form which is itself - * a Huffman encoding of the lengths of all the code strings (in - * ascending order by source values). The actual code strings are - * reconstructed from the lengths in the inflate process, as described - * in the deflate specification. - * - * REFERENCES - * - * Deutsch, L.P.,"'Deflate' Compressed Data Format Specification". - * Available in ftp.uu.net:/pub/archiving/zip/doc/deflate-1.1.doc - * - * Storer, James A. - * Data Compression: Methods and Theory, pp. 49-50. - * Computer Science Press, 1988. ISBN 0-7167-8156-5. - * - * Sedgewick, R. - * Algorithms, p290. - * Addison-Wesley, 1983. ISBN 0-201-06672-6. - */ - -/* @(#) $Id: trees.c,v 1.1 2004/03/01 20:54:55 cozmic Exp $ */ - -/* #define GEN_TREES_H */ - -#include "deflate.h" - -#ifdef DEBUG -# include -#endif - -/* =========================================================================== - * Constants - */ - -#define MAX_BL_BITS 7 -/* Bit length codes must not exceed MAX_BL_BITS bits */ - -#define END_BLOCK 256 -/* end of block literal code */ - -#define REP_3_6 16 -/* repeat previous bit length 3-6 times (2 bits of repeat count) */ - -#define REPZ_3_10 17 -/* repeat a zero length 3-10 times (3 bits of repeat count) */ - -#define REPZ_11_138 18 -/* repeat a zero length 11-138 times (7 bits of repeat count) */ - -local const int extra_lbits[LENGTH_CODES] /* extra bits for each length code */ - = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0}; - -local const int extra_dbits[D_CODES] /* extra bits for each distance code */ - = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; - -local const int extra_blbits[BL_CODES]/* extra bits for each bit length code */ - = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7}; - -local const uch bl_order[BL_CODES] - = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15}; -/* The lengths of the bit length codes are sent in order of decreasing - * probability, to avoid transmitting the lengths for unused bit length codes. - */ - -#define Buf_size (8 * 2*sizeof(char)) -/* Number of bits used within bi_buf. (bi_buf might be implemented on - * more than 16 bits on some systems.) - */ - -/* =========================================================================== - * Local data. These are initialized only once. - */ - -#define DIST_CODE_LEN 512 /* see definition of array dist_code below */ - -#if defined(GEN_TREES_H) || !defined(STDC) -/* non ANSI compilers may not accept trees.h */ - -local ct_data static_ltree[L_CODES+2]; -/* The static literal tree. Since the bit lengths are imposed, there is no - * need for the L_CODES extra codes used during heap construction. However - * The codes 286 and 287 are needed to build a canonical tree (see _tr_init - * below). - */ - -local ct_data static_dtree[D_CODES]; -/* The static distance tree. (Actually a trivial tree since all codes use - * 5 bits.) - */ - -uch _dist_code[DIST_CODE_LEN]; -/* Distance codes. The first 256 values correspond to the distances - * 3 .. 258, the last 256 values correspond to the top 8 bits of - * the 15 bit distances. - */ - -uch _length_code[MAX_MATCH-MIN_MATCH+1]; -/* length code for each normalized match length (0 == MIN_MATCH) */ - -local int base_length[LENGTH_CODES]; -/* First normalized length for each code (0 = MIN_MATCH) */ - -local int base_dist[D_CODES]; -/* First normalized distance for each code (0 = distance of 1) */ - -#else -# include "trees.h" -#endif /* GEN_TREES_H */ - -struct static_tree_desc_s { - const ct_data *static_tree; /* static tree or NULL */ - const intf *extra_bits; /* extra bits for each code or NULL */ - int extra_base; /* base index for extra_bits */ - int elems; /* max number of elements in the tree */ - int max_length; /* max bit length for the codes */ -}; - -local static_tree_desc static_l_desc = -{static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS}; - -local static_tree_desc static_d_desc = -{static_dtree, extra_dbits, 0, D_CODES, MAX_BITS}; - -local static_tree_desc static_bl_desc = -{(const ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS}; - -/* =========================================================================== - * Local (static) routines in this file. - */ - -local void tr_static_init OF((void)); -local void init_block OF((deflate_state *s)); -local void pqdownheap OF((deflate_state *s, ct_data *tree, int k)); -local void gen_bitlen OF((deflate_state *s, tree_desc *desc)); -local void gen_codes OF((ct_data *tree, int max_code, ushf *bl_count)); -local void build_tree OF((deflate_state *s, tree_desc *desc)); -local void scan_tree OF((deflate_state *s, ct_data *tree, int max_code)); -local void send_tree OF((deflate_state *s, ct_data *tree, int max_code)); -local int build_bl_tree OF((deflate_state *s)); -local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes, - int blcodes)); -local void compress_block OF((deflate_state *s, ct_data *ltree, - ct_data *dtree)); -local void set_data_type OF((deflate_state *s)); -local unsigned bi_reverse OF((unsigned value, int length)); -local void bi_windup OF((deflate_state *s)); -local void bi_flush OF((deflate_state *s)); -local void copy_block OF((deflate_state *s, charf *buf, unsigned len, - int header)); - -#ifdef GEN_TREES_H -local void gen_trees_header OF((void)); -#endif - -#ifndef DEBUG -# define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len) - /* Send a code of the given tree. c and tree must not have side effects */ - -#else /* DEBUG */ -# define send_code(s, c, tree) \ - { if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \ - send_bits(s, tree[c].Code, tree[c].Len); } -#endif - -/* =========================================================================== - * Output a short LSB first on the stream. - * IN assertion: there is enough room in pendingBuf. - */ -#define put_short(s, w) { \ - put_byte(s, (uch)((w) & 0xff)); \ - put_byte(s, (uch)((ush)(w) >> 8)); \ -} - -/* =========================================================================== - * Send a value on a given number of bits. - * IN assertion: length <= 16 and value fits in length bits. - */ -#ifdef DEBUG -local void send_bits OF((deflate_state *s, int value, int length)); - -local void send_bits(s, value, length) - deflate_state *s; - int value; /* value to send */ - int length; /* number of bits */ -{ - Tracevv((stderr," l %2d v %4x ", length, value)); - Assert(length > 0 && length <= 15, "invalid length"); - s->bits_sent += (ulg)length; - - /* If not enough room in bi_buf, use (valid) bits from bi_buf and - * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid)) - * unused bits in value. - */ - if (s->bi_valid > (int)Buf_size - length) { - s->bi_buf |= (value << s->bi_valid); - put_short(s, s->bi_buf); - s->bi_buf = (ush)value >> (Buf_size - s->bi_valid); - s->bi_valid += length - Buf_size; - } else { - s->bi_buf |= value << s->bi_valid; - s->bi_valid += length; - } -} -#else /* !DEBUG */ - -#define send_bits(s, value, length) \ -{ int len = length;\ - if (s->bi_valid > (int)Buf_size - len) {\ - int val = value;\ - s->bi_buf |= (val << s->bi_valid);\ - put_short(s, s->bi_buf);\ - s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\ - s->bi_valid += len - Buf_size;\ - } else {\ - s->bi_buf |= (value) << s->bi_valid;\ - s->bi_valid += len;\ - }\ -} -#endif /* DEBUG */ - - -#define MAX(a,b) (a >= b ? a : b) -/* the arguments must not have side effects */ - -/* =========================================================================== - * Initialize the various 'constant' tables. - */ -local void tr_static_init() -{ -#if defined(GEN_TREES_H) || !defined(STDC) - static int static_init_done = 0; - int n; /* iterates over tree elements */ - int bits; /* bit counter */ - int length; /* length value */ - int code; /* code value */ - int dist; /* distance index */ - ush bl_count[MAX_BITS+1]; - /* number of codes at each bit length for an optimal tree */ - - if (static_init_done) return; - - /* For some embedded targets, global variables are not initialized: */ - static_l_desc.static_tree = static_ltree; - static_l_desc.extra_bits = extra_lbits; - static_d_desc.static_tree = static_dtree; - static_d_desc.extra_bits = extra_dbits; - static_bl_desc.extra_bits = extra_blbits; - - /* Initialize the mapping length (0..255) -> length code (0..28) */ - length = 0; - for (code = 0; code < LENGTH_CODES-1; code++) { - base_length[code] = length; - for (n = 0; n < (1< dist code (0..29) */ - dist = 0; - for (code = 0 ; code < 16; code++) { - base_dist[code] = dist; - for (n = 0; n < (1<>= 7; /* from now on, all distances are divided by 128 */ - for ( ; code < D_CODES; code++) { - base_dist[code] = dist << 7; - for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) { - _dist_code[256 + dist++] = (uch)code; - } - } - Assert (dist == 256, "tr_static_init: 256+dist != 512"); - - /* Construct the codes of the static literal tree */ - for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0; - n = 0; - while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++; - while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++; - while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++; - while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++; - /* Codes 286 and 287 do not exist, but we must include them in the - * tree construction to get a canonical Huffman tree (longest code - * all ones) - */ - gen_codes((ct_data *)static_ltree, L_CODES+1, bl_count); - - /* The static distance tree is trivial: */ - for (n = 0; n < D_CODES; n++) { - static_dtree[n].Len = 5; - static_dtree[n].Code = bi_reverse((unsigned)n, 5); - } - static_init_done = 1; - -# ifdef GEN_TREES_H - gen_trees_header(); -# endif -#endif /* defined(GEN_TREES_H) || !defined(STDC) */ -} - -/* =========================================================================== - * Genererate the file trees.h describing the static trees. - */ -#ifdef GEN_TREES_H -# ifndef DEBUG -# include -# endif - -# define SEPARATOR(i, last, width) \ - ((i) == (last)? "\n};\n\n" : \ - ((i) % (width) == (width)-1 ? ",\n" : ", ")) - -void gen_trees_header() -{ - FILE *header = fopen("trees.h", "w"); - int i; - - Assert (header != NULL, "Can't open trees.h"); - fprintf(header, - "/* header created automatically with -DGEN_TREES_H */\n\n"); - - fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n"); - for (i = 0; i < L_CODES+2; i++) { - fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code, - static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5)); - } - - fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n"); - for (i = 0; i < D_CODES; i++) { - fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code, - static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5)); - } - - fprintf(header, "const uch _dist_code[DIST_CODE_LEN] = {\n"); - for (i = 0; i < DIST_CODE_LEN; i++) { - fprintf(header, "%2u%s", _dist_code[i], - SEPARATOR(i, DIST_CODE_LEN-1, 20)); - } - - fprintf(header, "const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {\n"); - for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) { - fprintf(header, "%2u%s", _length_code[i], - SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20)); - } - - fprintf(header, "local const int base_length[LENGTH_CODES] = {\n"); - for (i = 0; i < LENGTH_CODES; i++) { - fprintf(header, "%1u%s", base_length[i], - SEPARATOR(i, LENGTH_CODES-1, 20)); - } - - fprintf(header, "local const int base_dist[D_CODES] = {\n"); - for (i = 0; i < D_CODES; i++) { - fprintf(header, "%5u%s", base_dist[i], - SEPARATOR(i, D_CODES-1, 10)); - } - - fclose(header); -} -#endif /* GEN_TREES_H */ - -/* =========================================================================== - * Initialize the tree data structures for a new zlib stream. - */ -void _tr_init(s) - deflate_state *s; -{ - tr_static_init(); - - s->l_desc.dyn_tree = s->dyn_ltree; - s->l_desc.stat_desc = &static_l_desc; - - s->d_desc.dyn_tree = s->dyn_dtree; - s->d_desc.stat_desc = &static_d_desc; - - s->bl_desc.dyn_tree = s->bl_tree; - s->bl_desc.stat_desc = &static_bl_desc; - - s->bi_buf = 0; - s->bi_valid = 0; - s->last_eob_len = 8; /* enough lookahead for inflate */ -#ifdef DEBUG - s->compressed_len = 0L; - s->bits_sent = 0L; -#endif - - /* Initialize the first block of the first file: */ - init_block(s); -} - -/* =========================================================================== - * Initialize a new block. - */ -local void init_block(s) - deflate_state *s; -{ - int n; /* iterates over tree elements */ - - /* Initialize the trees. */ - for (n = 0; n < L_CODES; n++) s->dyn_ltree[n].Freq = 0; - for (n = 0; n < D_CODES; n++) s->dyn_dtree[n].Freq = 0; - for (n = 0; n < BL_CODES; n++) s->bl_tree[n].Freq = 0; - - s->dyn_ltree[END_BLOCK].Freq = 1; - s->opt_len = s->static_len = 0L; - s->last_lit = s->matches = 0; -} - -#define SMALLEST 1 -/* Index within the heap array of least frequent node in the Huffman tree */ - - -/* =========================================================================== - * Remove the smallest element from the heap and recreate the heap with - * one less element. Updates heap and heap_len. - */ -#define pqremove(s, tree, top) \ -{\ - top = s->heap[SMALLEST]; \ - s->heap[SMALLEST] = s->heap[s->heap_len--]; \ - pqdownheap(s, tree, SMALLEST); \ -} - -/* =========================================================================== - * Compares to subtrees, using the tree depth as tie breaker when - * the subtrees have equal frequency. This minimizes the worst case length. - */ -#define smaller(tree, n, m, depth) \ - (tree[n].Freq < tree[m].Freq || \ - (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m])) - -/* =========================================================================== - * Restore the heap property by moving down the tree starting at node k, - * exchanging a node with the smallest of its two sons if necessary, stopping - * when the heap property is re-established (each father smaller than its - * two sons). - */ -local void pqdownheap(s, tree, k) - deflate_state *s; - ct_data *tree; /* the tree to restore */ - int k; /* node to move down */ -{ - int v = s->heap[k]; - int j = k << 1; /* left son of k */ - while (j <= s->heap_len) { - /* Set j to the smallest of the two sons: */ - if (j < s->heap_len && - smaller(tree, s->heap[j+1], s->heap[j], s->depth)) { - j++; - } - /* Exit if v is smaller than both sons */ - if (smaller(tree, v, s->heap[j], s->depth)) break; - - /* Exchange v with the smallest son */ - s->heap[k] = s->heap[j]; k = j; - - /* And continue down the tree, setting j to the left son of k */ - j <<= 1; - } - s->heap[k] = v; -} - -/* =========================================================================== - * Compute the optimal bit lengths for a tree and update the total bit length - * for the current block. - * IN assertion: the fields freq and dad are set, heap[heap_max] and - * above are the tree nodes sorted by increasing frequency. - * OUT assertions: the field len is set to the optimal bit length, the - * array bl_count contains the frequencies for each bit length. - * The length opt_len is updated; static_len is also updated if stree is - * not null. - */ -local void gen_bitlen(s, desc) - deflate_state *s; - tree_desc *desc; /* the tree descriptor */ -{ - ct_data *tree = desc->dyn_tree; - int max_code = desc->max_code; - const ct_data *stree = desc->stat_desc->static_tree; - const intf *extra = desc->stat_desc->extra_bits; - int base = desc->stat_desc->extra_base; - int max_length = desc->stat_desc->max_length; - int h; /* heap index */ - int n, m; /* iterate over the tree elements */ - int bits; /* bit length */ - int xbits; /* extra bits */ - ush f; /* frequency */ - int overflow = 0; /* number of elements with bit length too large */ - - for (bits = 0; bits <= MAX_BITS; bits++) s->bl_count[bits] = 0; - - /* In a first pass, compute the optimal bit lengths (which may - * overflow in the case of the bit length tree). - */ - tree[s->heap[s->heap_max]].Len = 0; /* root of the heap */ - - for (h = s->heap_max+1; h < HEAP_SIZE; h++) { - n = s->heap[h]; - bits = tree[tree[n].Dad].Len + 1; - if (bits > max_length) bits = max_length, overflow++; - tree[n].Len = (ush)bits; - /* We overwrite tree[n].Dad which is no longer needed */ - - if (n > max_code) continue; /* not a leaf node */ - - s->bl_count[bits]++; - xbits = 0; - if (n >= base) xbits = extra[n-base]; - f = tree[n].Freq; - s->opt_len += (ulg)f * (bits + xbits); - if (stree) s->static_len += (ulg)f * (stree[n].Len + xbits); - } - if (overflow == 0) return; - - Trace((stderr,"\nbit length overflow\n")); - /* This happens for example on obj2 and pic of the Calgary corpus */ - - /* Find the first bit length which could increase: */ - do { - bits = max_length-1; - while (s->bl_count[bits] == 0) bits--; - s->bl_count[bits]--; /* move one leaf down the tree */ - s->bl_count[bits+1] += 2; /* move one overflow item as its brother */ - s->bl_count[max_length]--; - /* The brother of the overflow item also moves one step up, - * but this does not affect bl_count[max_length] - */ - overflow -= 2; - } while (overflow > 0); - - /* Now recompute all bit lengths, scanning in increasing frequency. - * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all - * lengths instead of fixing only the wrong ones. This idea is taken - * from 'ar' written by Haruhiko Okumura.) - */ - for (bits = max_length; bits != 0; bits--) { - n = s->bl_count[bits]; - while (n != 0) { - m = s->heap[--h]; - if (m > max_code) continue; - if (tree[m].Len != (unsigned) bits) { - Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits)); - s->opt_len += ((long)bits - (long)tree[m].Len) - *(long)tree[m].Freq; - tree[m].Len = (ush)bits; - } - n--; - } - } -} - -/* =========================================================================== - * Generate the codes for a given tree and bit counts (which need not be - * optimal). - * IN assertion: the array bl_count contains the bit length statistics for - * the given tree and the field len is set for all tree elements. - * OUT assertion: the field code is set for all tree elements of non - * zero code length. - */ -local void gen_codes (tree, max_code, bl_count) - ct_data *tree; /* the tree to decorate */ - int max_code; /* largest code with non zero frequency */ - ushf *bl_count; /* number of codes at each bit length */ -{ - ush next_code[MAX_BITS+1]; /* next code value for each bit length */ - ush code = 0; /* running code value */ - int bits; /* bit index */ - int n; /* code index */ - - /* The distribution counts are first used to generate the code values - * without bit reversal. - */ - for (bits = 1; bits <= MAX_BITS; bits++) { - next_code[bits] = code = (code + bl_count[bits-1]) << 1; - } - /* Check that the bit counts in bl_count are consistent. The last code - * must be all ones. - */ - Assert (code + bl_count[MAX_BITS]-1 == (1<dyn_tree; - const ct_data *stree = desc->stat_desc->static_tree; - int elems = desc->stat_desc->elems; - int n, m; /* iterate over heap elements */ - int max_code = -1; /* largest code with non zero frequency */ - int node; /* new node being created */ - - /* Construct the initial heap, with least frequent element in - * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1]. - * heap[0] is not used. - */ - s->heap_len = 0, s->heap_max = HEAP_SIZE; - - for (n = 0; n < elems; n++) { - if (tree[n].Freq != 0) { - s->heap[++(s->heap_len)] = max_code = n; - s->depth[n] = 0; - } else { - tree[n].Len = 0; - } - } - - /* The pkzip format requires that at least one distance code exists, - * and that at least one bit should be sent even if there is only one - * possible code. So to avoid special checks later on we force at least - * two codes of non zero frequency. - */ - while (s->heap_len < 2) { - node = s->heap[++(s->heap_len)] = (max_code < 2 ? ++max_code : 0); - tree[node].Freq = 1; - s->depth[node] = 0; - s->opt_len--; if (stree) s->static_len -= stree[node].Len; - /* node is 0 or 1 so it does not have extra bits */ - } - desc->max_code = max_code; - - /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree, - * establish sub-heaps of increasing lengths: - */ - for (n = s->heap_len/2; n >= 1; n--) pqdownheap(s, tree, n); - - /* Construct the Huffman tree by repeatedly combining the least two - * frequent nodes. - */ - node = elems; /* next internal node of the tree */ - do { - pqremove(s, tree, n); /* n = node of least frequency */ - m = s->heap[SMALLEST]; /* m = node of next least frequency */ - - s->heap[--(s->heap_max)] = n; /* keep the nodes sorted by frequency */ - s->heap[--(s->heap_max)] = m; - - /* Create a new node father of n and m */ - tree[node].Freq = tree[n].Freq + tree[m].Freq; - s->depth[node] = (uch) (MAX(s->depth[n], s->depth[m]) + 1); - tree[n].Dad = tree[m].Dad = (ush)node; -#ifdef DUMP_BL_TREE - if (tree == s->bl_tree) { - fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)", - node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq); - } -#endif - /* and insert the new node in the heap */ - s->heap[SMALLEST] = node++; - pqdownheap(s, tree, SMALLEST); - - } while (s->heap_len >= 2); - - s->heap[--(s->heap_max)] = s->heap[SMALLEST]; - - /* At this point, the fields freq and dad are set. We can now - * generate the bit lengths. - */ - gen_bitlen(s, (tree_desc *)desc); - - /* The field len is now set, we can generate the bit codes */ - gen_codes ((ct_data *)tree, max_code, s->bl_count); -} - -/* =========================================================================== - * Scan a literal or distance tree to determine the frequencies of the codes - * in the bit length tree. - */ -local void scan_tree (s, tree, max_code) - deflate_state *s; - ct_data *tree; /* the tree to be scanned */ - int max_code; /* and its largest code of non zero frequency */ -{ - int n; /* iterates over all tree elements */ - int prevlen = -1; /* last emitted length */ - int curlen; /* length of current code */ - int nextlen = tree[0].Len; /* length of next code */ - int count = 0; /* repeat count of the current code */ - int max_count = 7; /* max repeat count */ - int min_count = 4; /* min repeat count */ - - if (nextlen == 0) max_count = 138, min_count = 3; - tree[max_code+1].Len = (ush)0xffff; /* guard */ - - for (n = 0; n <= max_code; n++) { - curlen = nextlen; nextlen = tree[n+1].Len; - if (++count < max_count && curlen == nextlen) { - continue; - } else if (count < min_count) { - s->bl_tree[curlen].Freq += count; - } else if (curlen != 0) { - if (curlen != prevlen) s->bl_tree[curlen].Freq++; - s->bl_tree[REP_3_6].Freq++; - } else if (count <= 10) { - s->bl_tree[REPZ_3_10].Freq++; - } else { - s->bl_tree[REPZ_11_138].Freq++; - } - count = 0; prevlen = curlen; - if (nextlen == 0) { - max_count = 138, min_count = 3; - } else if (curlen == nextlen) { - max_count = 6, min_count = 3; - } else { - max_count = 7, min_count = 4; - } - } -} - -/* =========================================================================== - * Send a literal or distance tree in compressed form, using the codes in - * bl_tree. - */ -local void send_tree (s, tree, max_code) - deflate_state *s; - ct_data *tree; /* the tree to be scanned */ - int max_code; /* and its largest code of non zero frequency */ -{ - int n; /* iterates over all tree elements */ - int prevlen = -1; /* last emitted length */ - int curlen; /* length of current code */ - int nextlen = tree[0].Len; /* length of next code */ - int count = 0; /* repeat count of the current code */ - int max_count = 7; /* max repeat count */ - int min_count = 4; /* min repeat count */ - - /* tree[max_code+1].Len = -1; */ /* guard already set */ - if (nextlen == 0) max_count = 138, min_count = 3; - - for (n = 0; n <= max_code; n++) { - curlen = nextlen; nextlen = tree[n+1].Len; - if (++count < max_count && curlen == nextlen) { - continue; - } else if (count < min_count) { - do { send_code(s, curlen, s->bl_tree); } while (--count != 0); - - } else if (curlen != 0) { - if (curlen != prevlen) { - send_code(s, curlen, s->bl_tree); count--; - } - Assert(count >= 3 && count <= 6, " 3_6?"); - send_code(s, REP_3_6, s->bl_tree); send_bits(s, count-3, 2); - - } else if (count <= 10) { - send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count-3, 3); - - } else { - send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count-11, 7); - } - count = 0; prevlen = curlen; - if (nextlen == 0) { - max_count = 138, min_count = 3; - } else if (curlen == nextlen) { - max_count = 6, min_count = 3; - } else { - max_count = 7, min_count = 4; - } - } -} - -/* =========================================================================== - * Construct the Huffman tree for the bit lengths and return the index in - * bl_order of the last bit length code to send. - */ -local int build_bl_tree(s) - deflate_state *s; -{ - int max_blindex; /* index of last bit length code of non zero freq */ - - /* Determine the bit length frequencies for literal and distance trees */ - scan_tree(s, (ct_data *)s->dyn_ltree, s->l_desc.max_code); - scan_tree(s, (ct_data *)s->dyn_dtree, s->d_desc.max_code); - - /* Build the bit length tree: */ - build_tree(s, (tree_desc *)(&(s->bl_desc))); - /* opt_len now includes the length of the tree representations, except - * the lengths of the bit lengths codes and the 5+5+4 bits for the counts. - */ - - /* Determine the number of bit length codes to send. The pkzip format - * requires that at least 4 bit length codes be sent. (appnote.txt says - * 3 but the actual value used is 4.) - */ - for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) { - if (s->bl_tree[bl_order[max_blindex]].Len != 0) break; - } - /* Update opt_len to include the bit length tree and counts */ - s->opt_len += 3*(max_blindex+1) + 5+5+4; - Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld", - s->opt_len, s->static_len)); - - return max_blindex; -} - -/* =========================================================================== - * Send the header for a block using dynamic Huffman trees: the counts, the - * lengths of the bit length codes, the literal tree and the distance tree. - * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4. - */ -local void send_all_trees(s, lcodes, dcodes, blcodes) - deflate_state *s; - int lcodes, dcodes, blcodes; /* number of codes for each tree */ -{ - int rank; /* index in bl_order */ - - Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes"); - Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES, - "too many codes"); - Tracev((stderr, "\nbl counts: ")); - send_bits(s, lcodes-257, 5); /* not +255 as stated in appnote.txt */ - send_bits(s, dcodes-1, 5); - send_bits(s, blcodes-4, 4); /* not -3 as stated in appnote.txt */ - for (rank = 0; rank < blcodes; rank++) { - Tracev((stderr, "\nbl code %2d ", bl_order[rank])); - send_bits(s, s->bl_tree[bl_order[rank]].Len, 3); - } - Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent)); - - send_tree(s, (ct_data *)s->dyn_ltree, lcodes-1); /* literal tree */ - Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent)); - - send_tree(s, (ct_data *)s->dyn_dtree, dcodes-1); /* distance tree */ - Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent)); -} - -/* =========================================================================== - * Send a stored block - */ -void _tr_stored_block(s, buf, stored_len, eof) - deflate_state *s; - charf *buf; /* input block */ - ulg stored_len; /* length of input block */ - int eof; /* true if this is the last block for a file */ -{ - send_bits(s, (STORED_BLOCK<<1)+eof, 3); /* send block type */ -#ifdef DEBUG - s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L; - s->compressed_len += (stored_len + 4) << 3; -#endif - copy_block(s, buf, (unsigned)stored_len, 1); /* with header */ -} - -/* =========================================================================== - * Send one empty static block to give enough lookahead for inflate. - * This takes 10 bits, of which 7 may remain in the bit buffer. - * The current inflate code requires 9 bits of lookahead. If the - * last two codes for the previous block (real code plus EOB) were coded - * on 5 bits or less, inflate may have only 5+3 bits of lookahead to decode - * the last real code. In this case we send two empty static blocks instead - * of one. (There are no problems if the previous block is stored or fixed.) - * To simplify the code, we assume the worst case of last real code encoded - * on one bit only. - */ -void _tr_align(s) - deflate_state *s; -{ - send_bits(s, STATIC_TREES<<1, 3); - send_code(s, END_BLOCK, static_ltree); -#ifdef DEBUG - s->compressed_len += 10L; /* 3 for block type, 7 for EOB */ -#endif - bi_flush(s); - /* Of the 10 bits for the empty block, we have already sent - * (10 - bi_valid) bits. The lookahead for the last real code (before - * the EOB of the previous block) was thus at least one plus the length - * of the EOB plus what we have just sent of the empty static block. - */ - if (1 + s->last_eob_len + 10 - s->bi_valid < 9) { - send_bits(s, STATIC_TREES<<1, 3); - send_code(s, END_BLOCK, static_ltree); -#ifdef DEBUG - s->compressed_len += 10L; -#endif - bi_flush(s); - } - s->last_eob_len = 7; -} - -/* =========================================================================== - * Determine the best encoding for the current block: dynamic trees, static - * trees or store, and output the encoded block to the zip file. - */ -void _tr_flush_block(s, buf, stored_len, eof) - deflate_state *s; - charf *buf; /* input block, or NULL if too old */ - ulg stored_len; /* length of input block */ - int eof; /* true if this is the last block for a file */ -{ - ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */ - int max_blindex = 0; /* index of last bit length code of non zero freq */ - - /* Build the Huffman trees unless a stored block is forced */ - if (s->level > 0) { - - /* Check if the file is ascii or binary */ - if (s->data_type == Z_UNKNOWN) set_data_type(s); - - /* Construct the literal and distance trees */ - build_tree(s, (tree_desc *)(&(s->l_desc))); - Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len, - s->static_len)); - - build_tree(s, (tree_desc *)(&(s->d_desc))); - Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len, - s->static_len)); - /* At this point, opt_len and static_len are the total bit lengths of - * the compressed block data, excluding the tree representations. - */ - - /* Build the bit length tree for the above two trees, and get the index - * in bl_order of the last bit length code to send. - */ - max_blindex = build_bl_tree(s); - - /* Determine the best encoding. Compute first the block length in bytes*/ - opt_lenb = (s->opt_len+3+7)>>3; - static_lenb = (s->static_len+3+7)>>3; - - Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ", - opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len, - s->last_lit)); - - if (static_lenb <= opt_lenb) opt_lenb = static_lenb; - - } else { - Assert(buf != (char*)0, "lost buf"); - opt_lenb = static_lenb = stored_len + 5; /* force a stored block */ - } - -#ifdef FORCE_STORED - if (buf != (char*)0) { /* force stored block */ -#else - if (stored_len+4 <= opt_lenb && buf != (char*)0) { - /* 4: two words for the lengths */ -#endif - /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE. - * Otherwise we can't have processed more than WSIZE input bytes since - * the last block flush, because compression would have been - * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to - * transform a block into a stored block. - */ - _tr_stored_block(s, buf, stored_len, eof); - -#ifdef FORCE_STATIC - } else if (static_lenb >= 0) { /* force static trees */ -#else - } else if (static_lenb == opt_lenb) { -#endif - send_bits(s, (STATIC_TREES<<1)+eof, 3); - compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree); -#ifdef DEBUG - s->compressed_len += 3 + s->static_len; -#endif - } else { - send_bits(s, (DYN_TREES<<1)+eof, 3); - send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1, - max_blindex+1); - compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree); -#ifdef DEBUG - s->compressed_len += 3 + s->opt_len; -#endif - } - Assert (s->compressed_len == s->bits_sent, "bad compressed size"); - /* The above check is made mod 2^32, for files larger than 512 MB - * and uLong implemented on 32 bits. - */ - init_block(s); - - if (eof) { - bi_windup(s); -#ifdef DEBUG - s->compressed_len += 7; /* align on byte boundary */ -#endif - } - Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3, - s->compressed_len-7*eof)); -} - -/* =========================================================================== - * Save the match info and tally the frequency counts. Return true if - * the current block must be flushed. - */ -int _tr_tally (s, dist, lc) - deflate_state *s; - unsigned dist; /* distance of matched string */ - unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */ -{ - s->d_buf[s->last_lit] = (ush)dist; - s->l_buf[s->last_lit++] = (uch)lc; - if (dist == 0) { - /* lc is the unmatched char */ - s->dyn_ltree[lc].Freq++; - } else { - s->matches++; - /* Here, lc is the match length - MIN_MATCH */ - dist--; /* dist = match distance - 1 */ - Assert((ush)dist < (ush)MAX_DIST(s) && - (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) && - (ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match"); - - s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++; - s->dyn_dtree[d_code(dist)].Freq++; - } - -#ifdef TRUNCATE_BLOCK - /* Try to guess if it is profitable to stop the current block here */ - if ((s->last_lit & 0x1fff) == 0 && s->level > 2) { - /* Compute an upper bound for the compressed length */ - ulg out_length = (ulg)s->last_lit*8L; - ulg in_length = (ulg)((long)s->strstart - s->block_start); - int dcode; - for (dcode = 0; dcode < D_CODES; dcode++) { - out_length += (ulg)s->dyn_dtree[dcode].Freq * - (5L+extra_dbits[dcode]); - } - out_length >>= 3; - Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ", - s->last_lit, in_length, out_length, - 100L - out_length*100L/in_length)); - if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1; - } -#endif - return (s->last_lit == s->lit_bufsize-1); - /* We avoid equality with lit_bufsize because of wraparound at 64K - * on 16 bit machines and because stored blocks are restricted to - * 64K-1 bytes. - */ -} - -/* =========================================================================== - * Send the block data compressed using the given Huffman trees - */ -local void compress_block(s, ltree, dtree) - deflate_state *s; - ct_data *ltree; /* literal tree */ - ct_data *dtree; /* distance tree */ -{ - unsigned dist; /* distance of matched string */ - int lc; /* match length or unmatched char (if dist == 0) */ - unsigned lx = 0; /* running index in l_buf */ - unsigned code; /* the code to send */ - int extra; /* number of extra bits to send */ - - if (s->last_lit != 0) do { - dist = s->d_buf[lx]; - lc = s->l_buf[lx++]; - if (dist == 0) { - send_code(s, lc, ltree); /* send a literal byte */ - Tracecv(isgraph(lc), (stderr," '%c' ", lc)); - } else { - /* Here, lc is the match length - MIN_MATCH */ - code = _length_code[lc]; - send_code(s, code+LITERALS+1, ltree); /* send the length code */ - extra = extra_lbits[code]; - if (extra != 0) { - lc -= base_length[code]; - send_bits(s, lc, extra); /* send the extra length bits */ - } - dist--; /* dist is now the match distance - 1 */ - code = d_code(dist); - Assert (code < D_CODES, "bad d_code"); - - send_code(s, code, dtree); /* send the distance code */ - extra = extra_dbits[code]; - if (extra != 0) { - dist -= base_dist[code]; - send_bits(s, dist, extra); /* send the extra distance bits */ - } - } /* literal or match pair ? */ - - /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */ - Assert(s->pending < s->lit_bufsize + 2*lx, "pendingBuf overflow"); - - } while (lx < s->last_lit); - - send_code(s, END_BLOCK, ltree); - s->last_eob_len = ltree[END_BLOCK].Len; -} - -/* =========================================================================== - * Set the data type to ASCII or BINARY, using a crude approximation: - * binary if more than 20% of the bytes are <= 6 or >= 128, ascii otherwise. - * IN assertion: the fields freq of dyn_ltree are set and the total of all - * frequencies does not exceed 64K (to fit in an int on 16 bit machines). - */ -local void set_data_type(s) - deflate_state *s; -{ - int n = 0; - unsigned ascii_freq = 0; - unsigned bin_freq = 0; - while (n < 7) bin_freq += s->dyn_ltree[n++].Freq; - while (n < 128) ascii_freq += s->dyn_ltree[n++].Freq; - while (n < LITERALS) bin_freq += s->dyn_ltree[n++].Freq; - s->data_type = (Byte)(bin_freq > (ascii_freq >> 2) ? Z_BINARY : Z_ASCII); -} - -/* =========================================================================== - * Reverse the first len bits of a code, using straightforward code (a faster - * method would use a table) - * IN assertion: 1 <= len <= 15 - */ -local unsigned bi_reverse(code, len) - unsigned code; /* the value to invert */ - int len; /* its bit length */ -{ - register unsigned res = 0; - do { - res |= code & 1; - code >>= 1, res <<= 1; - } while (--len > 0); - return res >> 1; -} - -/* =========================================================================== - * Flush the bit buffer, keeping at most 7 bits in it. - */ -local void bi_flush(s) - deflate_state *s; -{ - if (s->bi_valid == 16) { - put_short(s, s->bi_buf); - s->bi_buf = 0; - s->bi_valid = 0; - } else if (s->bi_valid >= 8) { - put_byte(s, (Byte)s->bi_buf); - s->bi_buf >>= 8; - s->bi_valid -= 8; - } -} - -/* =========================================================================== - * Flush the bit buffer and align the output on a byte boundary - */ -local void bi_windup(s) - deflate_state *s; -{ - if (s->bi_valid > 8) { - put_short(s, s->bi_buf); - } else if (s->bi_valid > 0) { - put_byte(s, (Byte)s->bi_buf); - } - s->bi_buf = 0; - s->bi_valid = 0; -#ifdef DEBUG - s->bits_sent = (s->bits_sent+7) & ~7; -#endif -} - -/* =========================================================================== - * Copy a stored block, storing first the length and its - * one's complement if requested. - */ -local void copy_block(s, buf, len, header) - deflate_state *s; - charf *buf; /* the input data */ - unsigned len; /* its length */ - int header; /* true if block header must be written */ -{ - bi_windup(s); /* align on byte boundary */ - s->last_eob_len = 8; /* enough lookahead for inflate */ - - if (header) { - put_short(s, (ush)len); - put_short(s, (ush)~len); -#ifdef DEBUG - s->bits_sent += 2*16; -#endif - } -#ifdef DEBUG - s->bits_sent += (ulg)len<<3; -#endif - while (len--) { - put_byte(s, *buf++); - } -} diff --git a/collects/plot/src/all/trees.h b/collects/plot/src/all/trees.h deleted file mode 100644 index 72facf900f..0000000000 --- a/collects/plot/src/all/trees.h +++ /dev/null @@ -1,128 +0,0 @@ -/* header created automatically with -DGEN_TREES_H */ - -local const ct_data static_ltree[L_CODES+2] = { -{{ 12},{ 8}}, {{140},{ 8}}, {{ 76},{ 8}}, {{204},{ 8}}, {{ 44},{ 8}}, -{{172},{ 8}}, {{108},{ 8}}, {{236},{ 8}}, {{ 28},{ 8}}, {{156},{ 8}}, -{{ 92},{ 8}}, {{220},{ 8}}, {{ 60},{ 8}}, {{188},{ 8}}, {{124},{ 8}}, -{{252},{ 8}}, {{ 2},{ 8}}, {{130},{ 8}}, {{ 66},{ 8}}, {{194},{ 8}}, -{{ 34},{ 8}}, {{162},{ 8}}, {{ 98},{ 8}}, {{226},{ 8}}, {{ 18},{ 8}}, -{{146},{ 8}}, {{ 82},{ 8}}, {{210},{ 8}}, {{ 50},{ 8}}, {{178},{ 8}}, -{{114},{ 8}}, {{242},{ 8}}, {{ 10},{ 8}}, {{138},{ 8}}, {{ 74},{ 8}}, -{{202},{ 8}}, {{ 42},{ 8}}, {{170},{ 8}}, {{106},{ 8}}, {{234},{ 8}}, -{{ 26},{ 8}}, {{154},{ 8}}, {{ 90},{ 8}}, {{218},{ 8}}, {{ 58},{ 8}}, -{{186},{ 8}}, {{122},{ 8}}, {{250},{ 8}}, {{ 6},{ 8}}, {{134},{ 8}}, -{{ 70},{ 8}}, {{198},{ 8}}, {{ 38},{ 8}}, {{166},{ 8}}, {{102},{ 8}}, -{{230},{ 8}}, {{ 22},{ 8}}, {{150},{ 8}}, {{ 86},{ 8}}, {{214},{ 8}}, -{{ 54},{ 8}}, {{182},{ 8}}, {{118},{ 8}}, {{246},{ 8}}, {{ 14},{ 8}}, -{{142},{ 8}}, {{ 78},{ 8}}, {{206},{ 8}}, {{ 46},{ 8}}, {{174},{ 8}}, -{{110},{ 8}}, {{238},{ 8}}, {{ 30},{ 8}}, {{158},{ 8}}, {{ 94},{ 8}}, -{{222},{ 8}}, {{ 62},{ 8}}, {{190},{ 8}}, {{126},{ 8}}, {{254},{ 8}}, -{{ 1},{ 8}}, {{129},{ 8}}, {{ 65},{ 8}}, {{193},{ 8}}, {{ 33},{ 8}}, -{{161},{ 8}}, {{ 97},{ 8}}, {{225},{ 8}}, {{ 17},{ 8}}, {{145},{ 8}}, -{{ 81},{ 8}}, {{209},{ 8}}, {{ 49},{ 8}}, {{177},{ 8}}, {{113},{ 8}}, -{{241},{ 8}}, {{ 9},{ 8}}, {{137},{ 8}}, {{ 73},{ 8}}, {{201},{ 8}}, -{{ 41},{ 8}}, {{169},{ 8}}, {{105},{ 8}}, {{233},{ 8}}, {{ 25},{ 8}}, -{{153},{ 8}}, {{ 89},{ 8}}, {{217},{ 8}}, {{ 57},{ 8}}, {{185},{ 8}}, -{{121},{ 8}}, {{249},{ 8}}, {{ 5},{ 8}}, {{133},{ 8}}, {{ 69},{ 8}}, -{{197},{ 8}}, {{ 37},{ 8}}, {{165},{ 8}}, {{101},{ 8}}, {{229},{ 8}}, -{{ 21},{ 8}}, {{149},{ 8}}, {{ 85},{ 8}}, {{213},{ 8}}, {{ 53},{ 8}}, -{{181},{ 8}}, {{117},{ 8}}, {{245},{ 8}}, {{ 13},{ 8}}, {{141},{ 8}}, -{{ 77},{ 8}}, {{205},{ 8}}, {{ 45},{ 8}}, {{173},{ 8}}, {{109},{ 8}}, -{{237},{ 8}}, {{ 29},{ 8}}, {{157},{ 8}}, {{ 93},{ 8}}, {{221},{ 8}}, -{{ 61},{ 8}}, {{189},{ 8}}, {{125},{ 8}}, {{253},{ 8}}, {{ 19},{ 9}}, -{{275},{ 9}}, {{147},{ 9}}, {{403},{ 9}}, {{ 83},{ 9}}, {{339},{ 9}}, -{{211},{ 9}}, {{467},{ 9}}, {{ 51},{ 9}}, {{307},{ 9}}, {{179},{ 9}}, -{{435},{ 9}}, {{115},{ 9}}, {{371},{ 9}}, {{243},{ 9}}, {{499},{ 9}}, -{{ 11},{ 9}}, {{267},{ 9}}, {{139},{ 9}}, {{395},{ 9}}, {{ 75},{ 9}}, -{{331},{ 9}}, {{203},{ 9}}, {{459},{ 9}}, {{ 43},{ 9}}, {{299},{ 9}}, -{{171},{ 9}}, {{427},{ 9}}, {{107},{ 9}}, {{363},{ 9}}, {{235},{ 9}}, -{{491},{ 9}}, {{ 27},{ 9}}, {{283},{ 9}}, {{155},{ 9}}, {{411},{ 9}}, -{{ 91},{ 9}}, {{347},{ 9}}, {{219},{ 9}}, {{475},{ 9}}, {{ 59},{ 9}}, -{{315},{ 9}}, {{187},{ 9}}, {{443},{ 9}}, {{123},{ 9}}, {{379},{ 9}}, -{{251},{ 9}}, {{507},{ 9}}, {{ 7},{ 9}}, {{263},{ 9}}, {{135},{ 9}}, -{{391},{ 9}}, {{ 71},{ 9}}, {{327},{ 9}}, {{199},{ 9}}, {{455},{ 9}}, -{{ 39},{ 9}}, {{295},{ 9}}, {{167},{ 9}}, {{423},{ 9}}, {{103},{ 9}}, -{{359},{ 9}}, {{231},{ 9}}, {{487},{ 9}}, {{ 23},{ 9}}, {{279},{ 9}}, -{{151},{ 9}}, {{407},{ 9}}, {{ 87},{ 9}}, {{343},{ 9}}, {{215},{ 9}}, -{{471},{ 9}}, {{ 55},{ 9}}, {{311},{ 9}}, {{183},{ 9}}, {{439},{ 9}}, -{{119},{ 9}}, {{375},{ 9}}, {{247},{ 9}}, {{503},{ 9}}, {{ 15},{ 9}}, -{{271},{ 9}}, {{143},{ 9}}, {{399},{ 9}}, {{ 79},{ 9}}, {{335},{ 9}}, -{{207},{ 9}}, {{463},{ 9}}, {{ 47},{ 9}}, {{303},{ 9}}, {{175},{ 9}}, -{{431},{ 9}}, {{111},{ 9}}, {{367},{ 9}}, {{239},{ 9}}, {{495},{ 9}}, -{{ 31},{ 9}}, {{287},{ 9}}, {{159},{ 9}}, {{415},{ 9}}, {{ 95},{ 9}}, -{{351},{ 9}}, {{223},{ 9}}, {{479},{ 9}}, {{ 63},{ 9}}, {{319},{ 9}}, -{{191},{ 9}}, {{447},{ 9}}, {{127},{ 9}}, {{383},{ 9}}, {{255},{ 9}}, -{{511},{ 9}}, {{ 0},{ 7}}, {{ 64},{ 7}}, {{ 32},{ 7}}, {{ 96},{ 7}}, -{{ 16},{ 7}}, {{ 80},{ 7}}, {{ 48},{ 7}}, {{112},{ 7}}, {{ 8},{ 7}}, -{{ 72},{ 7}}, {{ 40},{ 7}}, {{104},{ 7}}, {{ 24},{ 7}}, {{ 88},{ 7}}, -{{ 56},{ 7}}, {{120},{ 7}}, {{ 4},{ 7}}, {{ 68},{ 7}}, {{ 36},{ 7}}, -{{100},{ 7}}, {{ 20},{ 7}}, {{ 84},{ 7}}, {{ 52},{ 7}}, {{116},{ 7}}, -{{ 3},{ 8}}, {{131},{ 8}}, {{ 67},{ 8}}, {{195},{ 8}}, {{ 35},{ 8}}, -{{163},{ 8}}, {{ 99},{ 8}}, {{227},{ 8}} -}; - -local const ct_data static_dtree[D_CODES] = { -{{ 0},{ 5}}, {{16},{ 5}}, {{ 8},{ 5}}, {{24},{ 5}}, {{ 4},{ 5}}, -{{20},{ 5}}, {{12},{ 5}}, {{28},{ 5}}, {{ 2},{ 5}}, {{18},{ 5}}, -{{10},{ 5}}, {{26},{ 5}}, {{ 6},{ 5}}, {{22},{ 5}}, {{14},{ 5}}, -{{30},{ 5}}, {{ 1},{ 5}}, {{17},{ 5}}, {{ 9},{ 5}}, {{25},{ 5}}, -{{ 5},{ 5}}, {{21},{ 5}}, {{13},{ 5}}, {{29},{ 5}}, {{ 3},{ 5}}, -{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}} -}; - -const uch _dist_code[DIST_CODE_LEN] = { - 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, - 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, -10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, -11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, -12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, -13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, -13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, -14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, -14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, -14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, -15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, -15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, -15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 16, 17, -18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, -23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, -26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, -26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, -27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, -27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, -28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, -28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, -28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, -29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, -29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, -29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29 -}; - -const uch _length_code[MAX_MATCH-MIN_MATCH+1]= { - 0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12, -13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, -17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, -19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, -21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, -22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, -23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, -25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, -26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, -26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, -27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28 -}; - -local const int base_length[LENGTH_CODES] = { -0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56, -64, 80, 96, 112, 128, 160, 192, 224, 0 -}; - -local const int base_dist[D_CODES] = { - 0, 1, 2, 3, 4, 6, 8, 12, 16, 24, - 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, - 1024, 1536, 2048, 3072, 4096, 6144, 8192, 12288, 16384, 24576 -}; - diff --git a/collects/plot/src/all/uncompr.c b/collects/plot/src/all/uncompr.c deleted file mode 100644 index 47c37ca002..0000000000 --- a/collects/plot/src/all/uncompr.c +++ /dev/null @@ -1,58 +0,0 @@ -/* uncompr.c -- decompress a memory buffer - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id: uncompr.c,v 1.1 2004/03/01 20:54:55 cozmic Exp $ */ - -#include "zlib.h" - -/* =========================================================================== - Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be large enough to hold the - entire uncompressed data. (The size of the uncompressed data must have - been saved previously by the compressor and transmitted to the decompressor - by some mechanism outside the scope of this compression library.) - Upon exit, destLen is the actual size of the compressed buffer. - This function can be used to decompress a whole file at once if the - input file is mmap'ed. - - uncompress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted. -*/ -int ZEXPORT uncompress (dest, destLen, source, sourceLen) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; -{ - z_stream stream; - int err; - - stream.next_in = (Bytef*)source; - stream.avail_in = (uInt)sourceLen; - /* Check for source > 64K on 16-bit machine: */ - if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; - - stream.next_out = dest; - stream.avail_out = (uInt)*destLen; - if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; - - stream.zalloc = (alloc_func)0; - stream.zfree = (free_func)0; - - err = inflateInit(&stream); - if (err != Z_OK) return err; - - err = inflate(&stream, Z_FINISH); - if (err != Z_STREAM_END) { - inflateEnd(&stream); - return err == Z_OK ? Z_BUF_ERROR : err; - } - *destLen = stream.total_out; - - err = inflateEnd(&stream); - return err; -} diff --git a/collects/plot/src/all/version.h b/collects/plot/src/all/version.h deleted file mode 100644 index efaba71e49..0000000000 --- a/collects/plot/src/all/version.h +++ /dev/null @@ -1,19 +0,0 @@ -/****************************************************************************** - * - * File: version.h - * - * Created: 16/10/2002 - * - * Author: Pavel Sakov - * CSIRO Marine Research - * - * Purpose: Version string for csa library - * - *****************************************************************************/ - -#if !defined(_VERSION_H) -#define _VERSION_H - -char* csa_version = "0.05"; - -#endif diff --git a/collects/plot/src/all/wbmp.c b/collects/plot/src/all/wbmp.c deleted file mode 100644 index 850f095845..0000000000 --- a/collects/plot/src/all/wbmp.c +++ /dev/null @@ -1,376 +0,0 @@ - -/* WBMP - ** ---- - ** WBMP Level 0: B/W, Uncompressed - ** This implements the WBMP format as specified in WAPSpec 1.1 and 1.2. - ** It does not support ExtHeaders as defined in the spec. The spec states - ** that a WAP client does not need to implement ExtHeaders. - ** - ** (c) 2000 Johan Van den Brande - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include - -#include "wbmp.h" -#include "gd.h" -#include "gdhelpers.h" - -#ifdef NOTDEF -#define __TEST /* Compile with main function */ -#define __DEBUG /* Extra verbose when with __TEST */ -#define __WRITE /* readwbmp and writewbmp(stdout) */ -#define __VIEW /* view the wbmp on stdout */ -#endif - -/* getmbi - ** ------ - ** Get a multibyte integer from a generic getin function - ** 'getin' can be getc, with in = NULL - ** you can find getin as a function just above the main function - ** This way you gain a lot of flexibilty about how this package - ** reads a wbmp file. - */ -int -getmbi (int (*getin) (void *in), void *in) -{ - int i, mbi = 0; - - do - { - i = getin (in); - if (i < 0) - return (-1); - mbi = (mbi << 7) | (i & 0x7f); - } - while (i & 0x80); - - return (mbi); -} - - -/* putmbi - ** ------ - ** Put a multibyte intgerer in some kind of output stream - ** I work here with a function pointer, to make it as generic - ** as possible. Look at this function as an iterator on the - ** mbi integers it spits out. - ** - */ -void -putmbi (int i, void (*putout) (int c, void *out), void *out) -{ - int cnt, l, accu; - - /* Get number of septets */ - cnt = 0; - accu = 0; - while (accu != i) - accu += i & 0x7f << 7 * cnt++; - - /* Produce the multibyte output */ - for (l = cnt - 1; l > 0; l--) - putout (0x80 | (i & 0x7f << 7 * l) >> 7 * l, out); - - putout (i & 0x7f, out); - -} - - - -/* skipheader - ** ---------- - ** Skips the ExtHeader. Not needed for the moment - ** - */ -int -skipheader (int (*getin) (void *in), void *in) -{ - int i; - - do - { - i = getin (in); - if (i < 0) - return (-1); - } - while (i & 0x80); - - return (0); -} - -/* create wbmp - ** ----------- - ** create an empty wbmp - ** - */ -Wbmp * -createwbmp (int width, int height, int color) -{ - int i; - - Wbmp *wbmp; - if ((wbmp = (Wbmp *) gdMalloc (sizeof (Wbmp))) == NULL) - return (NULL); - - if ((wbmp->bitmap = - (int *) gdMalloc (sizeof (int) * width * height)) == NULL) - { - gdFree (wbmp); - return (NULL); - } - - wbmp->width = width; - wbmp->height = height; - - for (i = 0; i < width * height; wbmp->bitmap[i++] = color); - - return (wbmp); -} - - - -/* readwbmp - ** ------- - ** Actually reads the WBMP format from an open file descriptor - ** It goes along by returning a pointer to a WBMP struct. - ** - */ -int -readwbmp (int (*getin) (void *in), void *in, Wbmp ** return_wbmp) -{ - int row, col, byte, pel, pos; - Wbmp *wbmp; - - if ((wbmp = (Wbmp *) gdMalloc (sizeof (Wbmp))) == NULL) - return (-1); - - wbmp->type = getin (in); - if (wbmp->type != 0) - { - gdFree (wbmp); - return (-1); - } - - if (skipheader (getin, in)) - return (-1); - - - wbmp->width = getmbi (getin, in); - if (wbmp->width == -1) - { - gdFree (wbmp); - return (-1); - } - - wbmp->height = getmbi (getin, in); - if (wbmp->height == -1) - { - gdFree (wbmp); - return (-1); - } - -#ifdef __DEBUG - printf ("W: %d, H: %d\n", wbmp->width, wbmp->height); -#endif - - if ((wbmp->bitmap = - (int *) gdMalloc (sizeof (int) * wbmp->width * wbmp->height)) == NULL) - { - gdFree (wbmp); - return (-1); - } - -#ifdef __DEBUG - printf ("DATA CONSTRUCTED\n"); -#endif - - pos = 0; - for (row = 0; row < wbmp->height; row++) - { - for (col = 0; col < wbmp->width;) - { - byte = getin (in); - - for (pel = 7; pel >= 0; pel--) - { - if (col++ < wbmp->width) - { - if (byte & 1 << pel) - { - wbmp->bitmap[pos] = WBMP_WHITE; - } - else - { - wbmp->bitmap[pos] = WBMP_BLACK; - } - pos++; - } - } - } - } - - *return_wbmp = wbmp; - - return (0); -} - - -/* writewbmp - ** --------- - ** Write a wbmp to a file descriptor - ** - ** Why not just giving a filedescriptor to this function? - ** Well, the incentive to write this function was the complete - ** integration in gd library from www.boutell.com. They use - ** their own io functions, so the passing of a function seemed to be - ** a logic(?) decision ... - ** - */ -int -writewbmp (Wbmp * wbmp, void (*putout) (int c, void *out), void *out) -{ - int row, col; - int bitpos, octet; - - /* Generate the header */ - putout (0, out); /* WBMP Type 0: B/W, Uncompressed bitmap */ - putout (0, out); /* FixHeaderField */ - - - - /* Size of the image */ - putmbi (wbmp->width, putout, out); /* width */ - putmbi (wbmp->height, putout, out); /* height */ - - - /* Image data */ - for (row = 0; row < wbmp->height; row++) - { - bitpos = 8; - octet = 0; - for (col = 0; col < wbmp->width; col++) - { - octet |= - ((wbmp->bitmap[row * wbmp->width + col] == - 1) ? WBMP_WHITE : WBMP_BLACK) << --bitpos; - if (bitpos == 0) - { - bitpos = 8; - putout (octet, out); - octet = 0; - } - } - if (bitpos != 8) - putout (octet, out); - - } - return (0); - -} - - -/* freewbmp - ** -------- - ** gdFrees up memory occupied by a WBMP structure - ** - */ -void -freewbmp (Wbmp * wbmp) -{ - gdFree (wbmp->bitmap); - gdFree (wbmp); -} - - -/* printwbmp - ** --------- - ** print a WBMP to stdout for visualisation - ** - */ -void -printwbmp (Wbmp * wbmp) -{ - int row, col; - for (row = 0; row < wbmp->height; row++) - { - for (col = 0; col < wbmp->width; col++) - { - if (wbmp->bitmap[wbmp->width * row + col] == WBMP_BLACK) - { - putchar ('#'); - } - else - { - putchar (' '); - } - } - putchar ('\n'); - } -} - -#ifdef __TEST - -/* putout to file descriptor - ** ------------------------- - */ -int -putout (int c, void *out) -{ - return (putc (c, (FILE *) out)); -} - -/* getin from file descriptor - ** -------------------------- - */ -int -getin (void *in) -{ - return (getc ((FILE *) in)); -} - - -/* Main function - ** ------------- - ** - */ -int -main (int argc, char *argv[]) -{ - FILE *wbmp_file; - Wbmp *wbmp; - - wbmp_file = fopen (argv[1], "rb"); - if (wbmp_file) - { - readwbmp (&getin, wbmp_file, &wbmp); - -#ifdef __VIEW - -#ifdef __DEBUG - printf ("\nVIEWING IMAGE\n"); -#endif - - printwbmp (wbmp); -#endif - -#ifdef __WRITE - -#ifdef __DEBUG - printf ("\nDUMPING WBMP to STDOUT\n"); -#endif - - writewbmp (wbmp, &putout, stdout); -#endif - - freewbmp (wbmp); - fclose (wbmp_file); - } -} -#endif diff --git a/collects/plot/src/all/wbmp.h b/collects/plot/src/all/wbmp.h deleted file mode 100644 index 3cb3de6366..0000000000 --- a/collects/plot/src/all/wbmp.h +++ /dev/null @@ -1,48 +0,0 @@ -/* WBMP -** ---- -** WBMP Level 0: B/W, Uncompressed -** This implements the WBMP format as specified in WAPSpec 1.1 and 1.2. -** It does not support ExtHeaders as defined in the spec. The spec states -** that a WAP client does not need to implement ExtHeaders. -** -** (c) 2000 Johan Van den Brande -** -** Header file -*/ -#ifndef __WBMP_H -#define __WBMP_H 1 - - -/* WBMP struct -** ----------- -** A Wireless bitmap structure -** -*/ - -typedef struct Wbmp_ -{ - int type; /* type of the wbmp */ - int width; /* width of the image */ - int height; /* height of the image */ - int *bitmap; /* pointer to data: 0 = WHITE , 1 = BLACK */ -} -Wbmp; - -#define WBMP_WHITE 1 -#define WBMP_BLACK 0 - - -/* Proto's -** ------- -** -*/ -void putmbi (int i, void (*putout) (int c, void *out), void *out); -int getmbi (int (*getin) (void *in), void *in); -int skipheader (int (*getin) (void *in), void *in); -Wbmp *createwbmp (int width, int height, int color); -int readwbmp (int (*getin) (void *in), void *in, Wbmp ** wbmp); -int writewbmp (Wbmp * wbmp, void (*putout) (int c, void *out), void *out); -void freewbmp (Wbmp * wbmp); -void printwbmp (Wbmp * wbmp); - -#endif diff --git a/collects/plot/src/all/zconf.h b/collects/plot/src/all/zconf.h deleted file mode 100644 index 91f72c1c17..0000000000 --- a/collects/plot/src/all/zconf.h +++ /dev/null @@ -1,279 +0,0 @@ -/* zconf.h -- configuration of the zlib compression library - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id: zconf.h,v 1.1 2004/03/01 20:54:56 cozmic Exp $ */ - -#ifndef _ZCONF_H -#define _ZCONF_H - -/* - * If you *really* need a unique prefix for all types and library functions, - * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. - */ -#ifdef Z_PREFIX -# define deflateInit_ z_deflateInit_ -# define deflate z_deflate -# define deflateEnd z_deflateEnd -# define inflateInit_ z_inflateInit_ -# define inflate z_inflate -# define inflateEnd z_inflateEnd -# define deflateInit2_ z_deflateInit2_ -# define deflateSetDictionary z_deflateSetDictionary -# define deflateCopy z_deflateCopy -# define deflateReset z_deflateReset -# define deflateParams z_deflateParams -# define inflateInit2_ z_inflateInit2_ -# define inflateSetDictionary z_inflateSetDictionary -# define inflateSync z_inflateSync -# define inflateSyncPoint z_inflateSyncPoint -# define inflateReset z_inflateReset -# define compress z_compress -# define compress2 z_compress2 -# define uncompress z_uncompress -# define adler32 z_adler32 -# define crc32 z_crc32 -# define get_crc_table z_get_crc_table - -# define Byte z_Byte -# define uInt z_uInt -# define uLong z_uLong -# define Bytef z_Bytef -# define charf z_charf -# define intf z_intf -# define uIntf z_uIntf -# define uLongf z_uLongf -# define voidpf z_voidpf -# define voidp z_voidp -#endif - -#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32) -# define WIN32 -#endif -#if defined(__GNUC__) || defined(WIN32) || defined(__386__) || defined(i386) -# ifndef __32BIT__ -# define __32BIT__ -# endif -#endif -#if defined(__MSDOS__) && !defined(MSDOS) -# define MSDOS -#endif - -/* - * Compile with -DMAXSEG_64K if the alloc function cannot allocate more - * than 64k bytes at a time (needed on systems with 16-bit int). - */ -#if defined(MSDOS) && !defined(__32BIT__) -# define MAXSEG_64K -#endif -#ifdef MSDOS -# define UNALIGNED_OK -#endif - -#if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32)) && !defined(STDC) -# define STDC -#endif -#if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__) -# ifndef STDC -# define STDC -# endif -#endif - -#ifndef STDC -# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ -# define const -# endif -#endif - -/* Some Mac compilers merge all .h files incorrectly: */ -#if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__) -# define NO_DUMMY_DECL -#endif - -/* Old Borland C incorrectly complains about missing returns: */ -#if defined(__BORLANDC__) && (__BORLANDC__ < 0x500) -# define NEED_DUMMY_RETURN -#endif - - -/* Maximum value for memLevel in deflateInit2 */ -#ifndef MAX_MEM_LEVEL -# ifdef MAXSEG_64K -# define MAX_MEM_LEVEL 8 -# else -# define MAX_MEM_LEVEL 9 -# endif -#endif - -/* Maximum value for windowBits in deflateInit2 and inflateInit2. - * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files - * created by gzip. (Files created by minigzip can still be extracted by - * gzip.) - */ -#ifndef MAX_WBITS -# define MAX_WBITS 15 /* 32K LZ77 window */ -#endif - -/* The memory requirements for deflate are (in bytes): - (1 << (windowBits+2)) + (1 << (memLevel+9)) - that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) - plus a few kilobytes for small objects. For example, if you want to reduce - the default memory requirements from 256K to 128K, compile with - make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" - Of course this will generally degrade compression (there's no free lunch). - - The memory requirements for inflate are (in bytes) 1 << windowBits - that is, 32K for windowBits=15 (default value) plus a few kilobytes - for small objects. -*/ - - /* Type declarations */ - -#ifndef OF /* function prototypes */ -# ifdef STDC -# define OF(args) args -# else -# define OF(args) () -# endif -#endif - -/* The following definitions for FAR are needed only for MSDOS mixed - * model programming (small or medium model with some far allocations). - * This was tested only with MSC; for other MSDOS compilers you may have - * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, - * just define FAR to be empty. - */ -#if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__) - /* MSC small or medium model */ -# define SMALL_MEDIUM -# ifdef _MSC_VER -# define FAR _far -# else -# define FAR far -# endif -#endif -#if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__)) -# ifndef __32BIT__ -# define SMALL_MEDIUM -# define FAR _far -# endif -#endif - -/* Compile with -DZLIB_DLL for Windows DLL support */ -#if defined(ZLIB_DLL) -# if defined(_WINDOWS) || defined(WINDOWS) -# ifdef FAR -# undef FAR -# endif -# include -# define ZEXPORT WINAPI -# ifdef WIN32 -# define ZEXPORTVA WINAPIV -# else -# define ZEXPORTVA FAR _cdecl _export -# endif -# endif -# if defined (__BORLANDC__) -# if (__BORLANDC__ >= 0x0500) && defined (WIN32) -# include -# define ZEXPORT __declspec(dllexport) WINAPI -# define ZEXPORTRVA __declspec(dllexport) WINAPIV -# else -# if defined (_Windows) && defined (__DLL__) -# define ZEXPORT _export -# define ZEXPORTVA _export -# endif -# endif -# endif -#endif - -#if defined (__BEOS__) -# if defined (ZLIB_DLL) -# define ZEXTERN extern __declspec(dllexport) -# else -# define ZEXTERN extern __declspec(dllimport) -# endif -#endif - -#ifndef ZEXPORT -# define ZEXPORT -#endif -#ifndef ZEXPORTVA -# define ZEXPORTVA -#endif -#ifndef ZEXTERN -# define ZEXTERN extern -#endif - -#ifndef FAR -# define FAR -#endif - -#if !defined(MACOS) && !defined(TARGET_OS_MAC) -typedef unsigned char Byte; /* 8 bits */ -#endif -typedef unsigned int uInt; /* 16 bits or more */ -typedef unsigned long uLong; /* 32 bits or more */ - -#ifdef SMALL_MEDIUM - /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ -# define Bytef Byte FAR -#else - typedef Byte FAR Bytef; -#endif -typedef char FAR charf; -typedef int FAR intf; -typedef uInt FAR uIntf; -typedef uLong FAR uLongf; - -#ifdef STDC - typedef void FAR *voidpf; - typedef void *voidp; -#else - typedef Byte FAR *voidpf; - typedef Byte *voidp; -#endif - -#ifdef HAVE_UNISTD_H -# include /* for off_t */ -# include /* for SEEK_* and off_t */ -# define z_off_t off_t -#endif -#ifndef SEEK_SET -# define SEEK_SET 0 /* Seek from beginning of file. */ -# define SEEK_CUR 1 /* Seek from current position. */ -# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ -#endif -#ifndef z_off_t -# define z_off_t long -#endif - -/* MVS linker does not support external names larger than 8 bytes */ -#if defined(__MVS__) -# pragma map(deflateInit_,"DEIN") -# pragma map(deflateInit2_,"DEIN2") -# pragma map(deflateEnd,"DEEND") -# pragma map(inflateInit_,"ININ") -# pragma map(inflateInit2_,"ININ2") -# pragma map(inflateEnd,"INEND") -# pragma map(inflateSync,"INSY") -# pragma map(inflateSetDictionary,"INSEDI") -# pragma map(inflate_blocks,"INBL") -# pragma map(inflate_blocks_new,"INBLNE") -# pragma map(inflate_blocks_free,"INBLFR") -# pragma map(inflate_blocks_reset,"INBLRE") -# pragma map(inflate_codes_free,"INCOFR") -# pragma map(inflate_codes,"INCO") -# pragma map(inflate_fast,"INFA") -# pragma map(inflate_flush,"INFLU") -# pragma map(inflate_mask,"INMA") -# pragma map(inflate_set_dictionary,"INSEDI2") -# pragma map(inflate_copyright,"INCOPY") -# pragma map(inflate_trees_bits,"INTRBI") -# pragma map(inflate_trees_dynamic,"INTRDY") -# pragma map(inflate_trees_fixed,"INTRFI") -# pragma map(inflate_trees_free,"INTRFR") -#endif - -#endif /* _ZCONF_H */ diff --git a/collects/plot/src/all/zlib.h b/collects/plot/src/all/zlib.h deleted file mode 100644 index 52cb529f6f..0000000000 --- a/collects/plot/src/all/zlib.h +++ /dev/null @@ -1,893 +0,0 @@ -/* zlib.h -- interface of the 'zlib' general purpose compression library - version 1.1.4, March 11th, 2002 - - Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - Jean-loup Gailly Mark Adler - jloup@gzip.org madler@alumni.caltech.edu - - - The data format used by the zlib library is described by RFCs (Request for - Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt - (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). -*/ - -#ifndef _ZLIB_H -#define _ZLIB_H - -#include "zconf.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define ZLIB_VERSION "1.1.4" - -/* - The 'zlib' compression library provides in-memory compression and - decompression functions, including integrity checks of the uncompressed - data. This version of the library supports only one compression method - (deflation) but other algorithms will be added later and will have the same - stream interface. - - Compression can be done in a single step if the buffers are large - enough (for example if an input file is mmap'ed), or can be done by - repeated calls of the compression function. In the latter case, the - application must provide more input and/or consume the output - (providing more output space) before each call. - - The library also supports reading and writing files in gzip (.gz) format - with an interface similar to that of stdio. - - The library does not install any signal handler. The decoder checks - the consistency of the compressed data, so the library should never - crash even in case of corrupted input. -*/ - -typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size)); -typedef void (*free_func) OF((voidpf opaque, voidpf address)); - -struct internal_state; - -typedef struct z_stream_s { - Bytef *next_in; /* next input byte */ - uInt avail_in; /* number of bytes available at next_in */ - uLong total_in; /* total nb of input bytes read so far */ - - Bytef *next_out; /* next output byte should be put there */ - uInt avail_out; /* remaining free space at next_out */ - uLong total_out; /* total nb of bytes output so far */ - - char *msg; /* last error message, NULL if no error */ - struct internal_state FAR *state; /* not visible by applications */ - - alloc_func zalloc; /* used to allocate the internal state */ - free_func zfree; /* used to free the internal state */ - voidpf opaque; /* private data object passed to zalloc and zfree */ - - int data_type; /* best guess about the data type: ascii or binary */ - uLong adler; /* adler32 value of the uncompressed data */ - uLong reserved; /* reserved for future use */ -} z_stream; - -typedef z_stream FAR *z_streamp; - -/* - The application must update next_in and avail_in when avail_in has - dropped to zero. It must update next_out and avail_out when avail_out - has dropped to zero. The application must initialize zalloc, zfree and - opaque before calling the init function. All other fields are set by the - compression library and must not be updated by the application. - - The opaque value provided by the application will be passed as the first - parameter for calls of zalloc and zfree. This can be useful for custom - memory management. The compression library attaches no meaning to the - opaque value. - - zalloc must return Z_NULL if there is not enough memory for the object. - If zlib is used in a multi-threaded application, zalloc and zfree must be - thread safe. - - On 16-bit systems, the functions zalloc and zfree must be able to allocate - exactly 65536 bytes, but will not be required to allocate more than this - if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, - pointers returned by zalloc for objects of exactly 65536 bytes *must* - have their offset normalized to zero. The default allocation function - provided by this library ensures this (see zutil.c). To reduce memory - requirements and avoid any allocation of 64K objects, at the expense of - compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h). - - The fields total_in and total_out can be used for statistics or - progress reports. After compression, total_in holds the total size of - the uncompressed data and may be saved for use in the decompressor - (particularly if the decompressor wants to decompress everything in - a single step). -*/ - - /* constants */ - -#define Z_NO_FLUSH 0 -#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */ -#define Z_SYNC_FLUSH 2 -#define Z_FULL_FLUSH 3 -#define Z_FINISH 4 -/* Allowed flush values; see deflate() below for details */ - -#define Z_OK 0 -#define Z_STREAM_END 1 -#define Z_NEED_DICT 2 -#define Z_ERRNO (-1) -#define Z_STREAM_ERROR (-2) -#define Z_DATA_ERROR (-3) -#define Z_MEM_ERROR (-4) -#define Z_BUF_ERROR (-5) -#define Z_VERSION_ERROR (-6) -/* Return codes for the compression/decompression functions. Negative - * values are errors, positive values are used for special but normal events. - */ - -#define Z_NO_COMPRESSION 0 -#define Z_BEST_SPEED 1 -#define Z_BEST_COMPRESSION 9 -#define Z_DEFAULT_COMPRESSION (-1) -/* compression levels */ - -#define Z_FILTERED 1 -#define Z_HUFFMAN_ONLY 2 -#define Z_DEFAULT_STRATEGY 0 -/* compression strategy; see deflateInit2() below for details */ - -#define Z_BINARY 0 -#define Z_ASCII 1 -#define Z_UNKNOWN 2 -/* Possible values of the data_type field */ - -#define Z_DEFLATED 8 -/* The deflate compression method (the only one supported in this version) */ - -#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ - -#define zlib_version zlibVersion() -/* for compatibility with versions < 1.0.2 */ - - /* basic functions */ - -ZEXTERN const char * ZEXPORT zlibVersion OF((void)); -/* The application can compare zlibVersion and ZLIB_VERSION for consistency. - If the first character differs, the library code actually used is - not compatible with the zlib.h header file used by the application. - This check is automatically made by deflateInit and inflateInit. - */ - -/* -ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level)); - - Initializes the internal stream state for compression. The fields - zalloc, zfree and opaque must be initialized before by the caller. - If zalloc and zfree are set to Z_NULL, deflateInit updates them to - use default allocation functions. - - The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: - 1 gives best speed, 9 gives best compression, 0 gives no compression at - all (the input data is simply copied a block at a time). - Z_DEFAULT_COMPRESSION requests a default compromise between speed and - compression (currently equivalent to level 6). - - deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if level is not a valid compression level, - Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible - with the version assumed by the caller (ZLIB_VERSION). - msg is set to null if there is no error message. deflateInit does not - perform any compression: this will be done by deflate(). -*/ - - -ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); -/* - deflate compresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce some - output latency (reading input without producing any output) except when - forced to flush. - - The detailed semantics are as follows. deflate performs one or both of the - following actions: - - - Compress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in and avail_in are updated and - processing will resume at this point for the next call of deflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. This action is forced if the parameter flush is non zero. - Forcing flush frequently degrades the compression ratio, so this parameter - should be set only when necessary (in interactive applications). - Some output may be provided even if flush is not set. - - Before the call of deflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming - more output, and updating avail_in or avail_out accordingly; avail_out - should never be zero before the call. The application can consume the - compressed output when it wants, for example when the output buffer is full - (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK - and with zero avail_out, it must be called again after making room in the - output buffer because there might be more output pending. - - If the parameter flush is set to Z_SYNC_FLUSH, all pending output is - flushed to the output buffer and the output is aligned on a byte boundary, so - that the decompressor can get all input data available so far. (In particular - avail_in is zero after the call if enough output space has been provided - before the call.) Flushing may degrade compression for some compression - algorithms and so it should be used only when necessary. - - If flush is set to Z_FULL_FLUSH, all output is flushed as with - Z_SYNC_FLUSH, and the compression state is reset so that decompression can - restart from this point if previous compressed data has been damaged or if - random access is desired. Using Z_FULL_FLUSH too often can seriously degrade - the compression. - - If deflate returns with avail_out == 0, this function must be called again - with the same value of the flush parameter and more output space (updated - avail_out), until the flush is complete (deflate returns with non-zero - avail_out). - - If the parameter flush is set to Z_FINISH, pending input is processed, - pending output is flushed and deflate returns with Z_STREAM_END if there - was enough output space; if deflate returns with Z_OK, this function must be - called again with Z_FINISH and more output space (updated avail_out) but no - more input data, until it returns with Z_STREAM_END or an error. After - deflate has returned Z_STREAM_END, the only possible operations on the - stream are deflateReset or deflateEnd. - - Z_FINISH can be used immediately after deflateInit if all the compression - is to be done in a single step. In this case, avail_out must be at least - 0.1% larger than avail_in plus 12 bytes. If deflate does not return - Z_STREAM_END, then it must be called again as described above. - - deflate() sets strm->adler to the adler32 checksum of all input read - so far (that is, total_in bytes). - - deflate() may update data_type if it can make a good guess about - the input data type (Z_ASCII or Z_BINARY). In doubt, the data is considered - binary. This field is only for information purposes and does not affect - the compression algorithm in any manner. - - deflate() returns Z_OK if some progress has been made (more input - processed or more output produced), Z_STREAM_END if all input has been - consumed and all output has been produced (only when flush is set to - Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example - if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible - (for example avail_in or avail_out was zero). -*/ - - -ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any - pending output. - - deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the - stream state was inconsistent, Z_DATA_ERROR if the stream was freed - prematurely (some input or output was discarded). In the error case, - msg may be set but then points to a static string (which must not be - deallocated). -*/ - - -/* -ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm)); - - Initializes the internal stream state for decompression. The fields - next_in, avail_in, zalloc, zfree and opaque must be initialized before by - the caller. If next_in is not Z_NULL and avail_in is large enough (the exact - value depends on the compression method), inflateInit determines the - compression method from the zlib header and allocates all data structures - accordingly; otherwise the allocation will be deferred to the first call of - inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to - use default allocation functions. - - inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_VERSION_ERROR if the zlib library version is incompatible with the - version assumed by the caller. msg is set to null if there is no error - message. inflateInit does not perform any decompression apart from reading - the zlib header if present: this will be done by inflate(). (So next_in and - avail_in may be modified, but next_out and avail_out are unchanged.) -*/ - - -ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); -/* - inflate decompresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may some - introduce some output latency (reading input without producing any output) - except when forced to flush. - - The detailed semantics are as follows. inflate performs one or both of the - following actions: - - - Decompress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in is updated and processing - will resume at this point for the next call of inflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. inflate() provides as much output as possible, until there - is no more input data or no more space in the output buffer (see below - about the flush parameter). - - Before the call of inflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming - more output, and updating the next_* and avail_* values accordingly. - The application can consume the uncompressed output when it wants, for - example when the output buffer is full (avail_out == 0), or after each - call of inflate(). If inflate returns Z_OK and with zero avail_out, it - must be called again after making room in the output buffer because there - might be more output pending. - - If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much - output as possible to the output buffer. The flushing behavior of inflate is - not specified for values of the flush parameter other than Z_SYNC_FLUSH - and Z_FINISH, but the current implementation actually flushes as much output - as possible anyway. - - inflate() should normally be called until it returns Z_STREAM_END or an - error. However if all decompression is to be performed in a single step - (a single call of inflate), the parameter flush should be set to - Z_FINISH. In this case all pending input is processed and all pending - output is flushed; avail_out must be large enough to hold all the - uncompressed data. (The size of the uncompressed data may have been saved - by the compressor for this purpose.) The next operation on this stream must - be inflateEnd to deallocate the decompression state. The use of Z_FINISH - is never required, but can be used to inform inflate that a faster routine - may be used for the single inflate() call. - - If a preset dictionary is needed at this point (see inflateSetDictionary - below), inflate sets strm-adler to the adler32 checksum of the - dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise - it sets strm->adler to the adler32 checksum of all output produced - so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or - an error code as described below. At the end of the stream, inflate() - checks that its computed adler32 checksum is equal to that saved by the - compressor and returns Z_STREAM_END only if the checksum is correct. - - inflate() returns Z_OK if some progress has been made (more input processed - or more output produced), Z_STREAM_END if the end of the compressed data has - been reached and all uncompressed output has been produced, Z_NEED_DICT if a - preset dictionary is needed at this point, Z_DATA_ERROR if the input data was - corrupted (input stream not conforming to the zlib format or incorrect - adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent - (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if no progress is possible or if there was not - enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR - case, the application may then call inflateSync to look for a good - compression block. -*/ - - -ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any - pending output. - - inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state - was inconsistent. In the error case, msg may be set but then points to a - static string (which must not be deallocated). -*/ - - /* Advanced functions */ - -/* - The following functions are needed only in some special applications. -*/ - -/* -ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, - int level, - int method, - int windowBits, - int memLevel, - int strategy)); - - This is another version of deflateInit with more compression options. The - fields next_in, zalloc, zfree and opaque must be initialized before by - the caller. - - The method parameter is the compression method. It must be Z_DEFLATED in - this version of the library. - - The windowBits parameter is the base two logarithm of the window size - (the size of the history buffer). It should be in the range 8..15 for this - version of the library. Larger values of this parameter result in better - compression at the expense of memory usage. The default value is 15 if - deflateInit is used instead. - - The memLevel parameter specifies how much memory should be allocated - for the internal compression state. memLevel=1 uses minimum memory but - is slow and reduces compression ratio; memLevel=9 uses maximum memory - for optimal speed. The default value is 8. See zconf.h for total memory - usage as a function of windowBits and memLevel. - - The strategy parameter is used to tune the compression algorithm. Use the - value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a - filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no - string match). Filtered data consists mostly of small values with a - somewhat random distribution. In this case, the compression algorithm is - tuned to compress them better. The effect of Z_FILTERED is to force more - Huffman coding and less string matching; it is somewhat intermediate - between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects - the compression ratio but not the correctness of the compressed output even - if it is not set appropriately. - - deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid - method). msg is set to null if there is no error message. deflateInit2 does - not perform any compression: this will be done by deflate(). -*/ - -ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm, - const Bytef *dictionary, - uInt dictLength)); -/* - Initializes the compression dictionary from the given byte sequence - without producing any compressed output. This function must be called - immediately after deflateInit, deflateInit2 or deflateReset, before any - call of deflate. The compressor and decompressor must use exactly the same - dictionary (see inflateSetDictionary). - - The dictionary should consist of strings (byte sequences) that are likely - to be encountered later in the data to be compressed, with the most commonly - used strings preferably put towards the end of the dictionary. Using a - dictionary is most useful when the data to be compressed is short and can be - predicted with good accuracy; the data can then be compressed better than - with the default empty dictionary. - - Depending on the size of the compression data structures selected by - deflateInit or deflateInit2, a part of the dictionary may in effect be - discarded, for example if the dictionary is larger than the window size in - deflate or deflate2. Thus the strings most likely to be useful should be - put at the end of the dictionary, not at the front. - - Upon return of this function, strm->adler is set to the Adler32 value - of the dictionary; the decompressor may later use this value to determine - which dictionary has been used by the compressor. (The Adler32 value - applies to the whole dictionary even if only a subset of the dictionary is - actually used by the compressor.) - - deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a - parameter is invalid (such as NULL dictionary) or the stream state is - inconsistent (for example if deflate has already been called for this stream - or if the compression method is bsort). deflateSetDictionary does not - perform any compression: this will be done by deflate(). -*/ - -ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest, - z_streamp source)); -/* - Sets the destination stream as a complete copy of the source stream. - - This function can be useful when several compression strategies will be - tried, for example when there are several ways of pre-processing the input - data with a filter. The streams that will be discarded should then be freed - by calling deflateEnd. Note that deflateCopy duplicates the internal - compression state which can be quite large, so this strategy is slow and - can consume lots of memory. - - deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if the source stream state was inconsistent - (such as zalloc being NULL). msg is left unchanged in both source and - destination. -*/ - -ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm)); -/* - This function is equivalent to deflateEnd followed by deflateInit, - but does not free and reallocate all the internal compression state. - The stream will keep the same compression level and any other attributes - that may have been set by deflateInit2. - - deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being NULL). -*/ - -ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, - int level, - int strategy)); -/* - Dynamically update the compression level and compression strategy. The - interpretation of level and strategy is as in deflateInit2. This can be - used to switch between compression and straight copy of the input data, or - to switch to a different kind of input data requiring a different - strategy. If the compression level is changed, the input available so far - is compressed with the old level (and may be flushed); the new level will - take effect only at the next call of deflate(). - - Before the call of deflateParams, the stream state must be set as for - a call of deflate(), since the currently available input may have to - be compressed and flushed. In particular, strm->avail_out must be non-zero. - - deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source - stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR - if strm->avail_out was zero. -*/ - -/* -ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, - int windowBits)); - - This is another version of inflateInit with an extra parameter. The - fields next_in, avail_in, zalloc, zfree and opaque must be initialized - before by the caller. - - The windowBits parameter is the base two logarithm of the maximum window - size (the size of the history buffer). It should be in the range 8..15 for - this version of the library. The default value is 15 if inflateInit is used - instead. If a compressed stream with a larger window size is given as - input, inflate() will return with the error code Z_DATA_ERROR instead of - trying to allocate a larger window. - - inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative - memLevel). msg is set to null if there is no error message. inflateInit2 - does not perform any decompression apart from reading the zlib header if - present: this will be done by inflate(). (So next_in and avail_in may be - modified, but next_out and avail_out are unchanged.) -*/ - -ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm, - const Bytef *dictionary, - uInt dictLength)); -/* - Initializes the decompression dictionary from the given uncompressed byte - sequence. This function must be called immediately after a call of inflate - if this call returned Z_NEED_DICT. The dictionary chosen by the compressor - can be determined from the Adler32 value returned by this call of - inflate. The compressor and decompressor must use exactly the same - dictionary (see deflateSetDictionary). - - inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a - parameter is invalid (such as NULL dictionary) or the stream state is - inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the - expected one (incorrect Adler32 value). inflateSetDictionary does not - perform any decompression: this will be done by subsequent calls of - inflate(). -*/ - -ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); -/* - Skips invalid compressed data until a full flush point (see above the - description of deflate with Z_FULL_FLUSH) can be found, or until all - available input is skipped. No output is provided. - - inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR - if no more input was provided, Z_DATA_ERROR if no flush point has been found, - or Z_STREAM_ERROR if the stream structure was inconsistent. In the success - case, the application may save the current current value of total_in which - indicates where valid compressed data was found. In the error case, the - application may repeatedly call inflateSync, providing more input each time, - until success or end of the input data. -*/ - -ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm)); -/* - This function is equivalent to inflateEnd followed by inflateInit, - but does not free and reallocate all the internal decompression state. - The stream will keep attributes that may have been set by inflateInit2. - - inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being NULL). -*/ - - - /* utility functions */ - -/* - The following utility functions are implemented on top of the - basic stream-oriented functions. To simplify the interface, some - default options are assumed (compression level and memory usage, - standard memory allocation functions). The source code of these - utility functions can easily be modified if you need special options. -*/ - -ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen)); -/* - Compresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be at least 0.1% larger than - sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the - compressed buffer. - This function can be used to compress a whole file at once if the - input file is mmap'ed. - compress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer. -*/ - -ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen, - int level)); -/* - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least 0.1% larger than sourceLen plus - 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. - - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -*/ - -ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen)); -/* - Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be large enough to hold the - entire uncompressed data. (The size of the uncompressed data must have - been saved previously by the compressor and transmitted to the decompressor - by some mechanism outside the scope of this compression library.) - Upon exit, destLen is the actual size of the compressed buffer. - This function can be used to decompress a whole file at once if the - input file is mmap'ed. - - uncompress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted. -*/ - - -typedef voidp gzFile; - -ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); -/* - Opens a gzip (.gz) file for reading or writing. The mode parameter - is as in fopen ("rb" or "wb") but can also include a compression level - ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for - Huffman only compression as in "wb1h". (See the description - of deflateInit2 for more information about the strategy parameter.) - - gzopen can be used to read a file which is not in gzip format; in this - case gzread will directly read from the file without decompression. - - gzopen returns NULL if the file could not be opened or if there was - insufficient memory to allocate the (de)compression state; errno - can be checked to distinguish the two cases (if errno is zero, the - zlib error is Z_MEM_ERROR). */ - -ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode)); -/* - gzdopen() associates a gzFile with the file descriptor fd. File - descriptors are obtained from calls like open, dup, creat, pipe or - fileno (in the file has been previously opened with fopen). - The mode parameter is as in gzopen. - The next call of gzclose on the returned gzFile will also close the - file descriptor fd, just like fclose(fdopen(fd), mode) closes the file - descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode). - gzdopen returns NULL if there was insufficient memory to allocate - the (de)compression state. -*/ - -ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy)); -/* - Dynamically update the compression level or strategy. See the description - of deflateInit2 for the meaning of these parameters. - gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not - opened for writing. -*/ - -ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); -/* - Reads the given number of uncompressed bytes from the compressed file. - If the input file was not in gzip format, gzread copies the given number - of bytes into the buffer. - gzread returns the number of uncompressed bytes actually read (0 for - end of file, -1 for error). */ - -ZEXTERN int ZEXPORT gzwrite OF((gzFile file, - const voidp buf, unsigned len)); -/* - Writes the given number of uncompressed bytes into the compressed file. - gzwrite returns the number of uncompressed bytes actually written - (0 in case of error). -*/ - -ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...)); -/* - Converts, formats, and writes the args to the compressed file under - control of the format string, as in fprintf. gzprintf returns the number of - uncompressed bytes actually written (0 in case of error). -*/ - -ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); -/* - Writes the given null-terminated string to the compressed file, excluding - the terminating null character. - gzputs returns the number of characters written, or -1 in case of error. -*/ - -ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len)); -/* - Reads bytes from the compressed file until len-1 characters are read, or - a newline character is read and transferred to buf, or an end-of-file - condition is encountered. The string is then terminated with a null - character. - gzgets returns buf, or Z_NULL in case of error. -*/ - -ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c)); -/* - Writes c, converted to an unsigned char, into the compressed file. - gzputc returns the value that was written, or -1 in case of error. -*/ - -ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); -/* - Reads one byte from the compressed file. gzgetc returns this byte - or -1 in case of end of file or error. -*/ - -ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); -/* - Flushes all pending output into the compressed file. The parameter - flush is as in the deflate() function. The return value is the zlib - error number (see function gzerror below). gzflush returns Z_OK if - the flush parameter is Z_FINISH and all output could be flushed. - gzflush should be called only when strictly necessary because it can - degrade compression. -*/ - -ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, - z_off_t offset, int whence)); -/* - Sets the starting position for the next gzread or gzwrite on the - given compressed file. The offset represents a number of bytes in the - uncompressed data stream. The whence parameter is defined as in lseek(2); - the value SEEK_END is not supported. - If the file is opened for reading, this function is emulated but can be - extremely slow. If the file is opened for writing, only forward seeks are - supported; gzseek then compresses a sequence of zeroes up to the new - starting position. - - gzseek returns the resulting offset location as measured in bytes from - the beginning of the uncompressed stream, or -1 in case of error, in - particular if the file is opened for writing and the new starting position - would be before the current position. -*/ - -ZEXTERN int ZEXPORT gzrewind OF((gzFile file)); -/* - Rewinds the given file. This function is supported only for reading. - - gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) -*/ - -ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file)); -/* - Returns the starting position for the next gzread or gzwrite on the - given compressed file. This position represents a number of bytes in the - uncompressed data stream. - - gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) -*/ - -ZEXTERN int ZEXPORT gzeof OF((gzFile file)); -/* - Returns 1 when EOF has previously been detected reading the given - input stream, otherwise zero. -*/ - -ZEXTERN int ZEXPORT gzclose OF((gzFile file)); -/* - Flushes all pending output if necessary, closes the compressed file - and deallocates all the (de)compression state. The return value is the zlib - error number (see function gzerror below). -*/ - -ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); -/* - Returns the error message for the last error which occurred on the - given compressed file. errnum is set to zlib error number. If an - error occurred in the file system and not in the compression library, - errnum is set to Z_ERRNO and the application may consult errno - to get the exact error code. -*/ - - /* checksum functions */ - -/* - These functions are not related to compression but are exported - anyway because they might be useful in applications using the - compression library. -*/ - -ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len)); - -/* - Update a running Adler-32 checksum with the bytes buf[0..len-1] and - return the updated checksum. If buf is NULL, this function returns - the required initial value for the checksum. - An Adler-32 checksum is almost as reliable as a CRC32 but can be computed - much faster. Usage example: - - uLong adler = adler32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - adler = adler32(adler, buffer, length); - } - if (adler != original_adler) error(); -*/ - -ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); -/* - Update a running crc with the bytes buf[0..len-1] and return the updated - crc. If buf is NULL, this function returns the required initial value - for the crc. Pre- and post-conditioning (one's complement) is performed - within this function so it shouldn't be done by the application. - Usage example: - - uLong crc = crc32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - crc = crc32(crc, buffer, length); - } - if (crc != original_crc) error(); -*/ - - - /* various hacks, don't look :) */ - -/* deflateInit and inflateInit are macros to allow checking the zlib version - * and the compiler's view of z_stream: - */ -ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method, - int windowBits, int memLevel, - int strategy, const char *version, - int stream_size)); -ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits, - const char *version, int stream_size)); -#define deflateInit(strm, level) \ - deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) -#define inflateInit(strm) \ - inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) -#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ - deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ - (strategy), ZLIB_VERSION, sizeof(z_stream)) -#define inflateInit2(strm, windowBits) \ - inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) - - -#if !defined(_Z_UTIL_H) && !defined(NO_DUMMY_DECL) - struct internal_state {int dummy;}; /* hack for buggy compilers */ -#endif - -ZEXTERN const char * ZEXPORT zError OF((int err)); -ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp z)); -ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void)); - -#ifdef __cplusplus -} -#endif - -#endif /* _ZLIB_H */ diff --git a/collects/plot/src/all/zutil.c b/collects/plot/src/all/zutil.c deleted file mode 100644 index f8f2d3ac19..0000000000 --- a/collects/plot/src/all/zutil.c +++ /dev/null @@ -1,225 +0,0 @@ -/* zutil.c -- target dependent utility functions for the compression library - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id: zutil.c,v 1.1 2004/03/01 20:54:56 cozmic Exp $ */ - -#include "zutil.h" - -struct internal_state {int dummy;}; /* for buggy compilers */ - -#ifndef STDC -extern void exit OF((int)); -#endif - -const char *z_errmsg[10] = { -"need dictionary", /* Z_NEED_DICT 2 */ -"stream end", /* Z_STREAM_END 1 */ -"", /* Z_OK 0 */ -"file error", /* Z_ERRNO (-1) */ -"stream error", /* Z_STREAM_ERROR (-2) */ -"data error", /* Z_DATA_ERROR (-3) */ -"insufficient memory", /* Z_MEM_ERROR (-4) */ -"buffer error", /* Z_BUF_ERROR (-5) */ -"incompatible version",/* Z_VERSION_ERROR (-6) */ -""}; - - -const char * ZEXPORT zlibVersion() -{ - return ZLIB_VERSION; -} - -#ifdef DEBUG - -# ifndef verbose -# define verbose 0 -# endif -int z_verbose = verbose; - -void z_error (m) - char *m; -{ - fprintf(stderr, "%s\n", m); - exit(1); -} -#endif - -/* exported to allow conversion of error code to string for compress() and - * uncompress() - */ -const char * ZEXPORT zError(err) - int err; -{ - return ERR_MSG(err); -} - - -#ifndef HAVE_MEMCPY - -void zmemcpy(dest, source, len) - Bytef* dest; - const Bytef* source; - uInt len; -{ - if (len == 0) return; - do { - *dest++ = *source++; /* ??? to be unrolled */ - } while (--len != 0); -} - -int zmemcmp(s1, s2, len) - const Bytef* s1; - const Bytef* s2; - uInt len; -{ - uInt j; - - for (j = 0; j < len; j++) { - if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1; - } - return 0; -} - -void zmemzero(dest, len) - Bytef* dest; - uInt len; -{ - if (len == 0) return; - do { - *dest++ = 0; /* ??? to be unrolled */ - } while (--len != 0); -} -#endif - -#ifdef __TURBOC__ -#if (defined( __BORLANDC__) || !defined(SMALL_MEDIUM)) && !defined(__32BIT__) -/* Small and medium model in Turbo C are for now limited to near allocation - * with reduced MAX_WBITS and MAX_MEM_LEVEL - */ -# define MY_ZCALLOC - -/* Turbo C malloc() does not allow dynamic allocation of 64K bytes - * and farmalloc(64K) returns a pointer with an offset of 8, so we - * must fix the pointer. Warning: the pointer must be put back to its - * original form in order to free it, use zcfree(). - */ - -#define MAX_PTR 10 -/* 10*64K = 640K */ - -local int next_ptr = 0; - -typedef struct ptr_table_s { - voidpf org_ptr; - voidpf new_ptr; -} ptr_table; - -local ptr_table table[MAX_PTR]; -/* This table is used to remember the original form of pointers - * to large buffers (64K). Such pointers are normalized with a zero offset. - * Since MSDOS is not a preemptive multitasking OS, this table is not - * protected from concurrent access. This hack doesn't work anyway on - * a protected system like OS/2. Use Microsoft C instead. - */ - -voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) -{ - voidpf buf = opaque; /* just to make some compilers happy */ - ulg bsize = (ulg)items*size; - - /* If we allocate less than 65520 bytes, we assume that farmalloc - * will return a usable pointer which doesn't have to be normalized. - */ - if (bsize < 65520L) { - buf = farmalloc(bsize); - if (*(ush*)&buf != 0) return buf; - } else { - buf = farmalloc(bsize + 16L); - } - if (buf == NULL || next_ptr >= MAX_PTR) return NULL; - table[next_ptr].org_ptr = buf; - - /* Normalize the pointer to seg:0 */ - *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4; - *(ush*)&buf = 0; - table[next_ptr++].new_ptr = buf; - return buf; -} - -void zcfree (voidpf opaque, voidpf ptr) -{ - int n; - if (*(ush*)&ptr != 0) { /* object < 64K */ - farfree(ptr); - return; - } - /* Find the original pointer */ - for (n = 0; n < next_ptr; n++) { - if (ptr != table[n].new_ptr) continue; - - farfree(table[n].org_ptr); - while (++n < next_ptr) { - table[n-1] = table[n]; - } - next_ptr--; - return; - } - ptr = opaque; /* just to make some compilers happy */ - Assert(0, "zcfree: ptr not found"); -} -#endif -#endif /* __TURBOC__ */ - - -#if defined(M_I86) && !defined(__32BIT__) -/* Microsoft C in 16-bit mode */ - -# define MY_ZCALLOC - -#if (!defined(_MSC_VER) || (_MSC_VER <= 600)) -# define _halloc halloc -# define _hfree hfree -#endif - -voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) -{ - if (opaque) opaque = 0; /* to make compiler happy */ - return _halloc((long)items, size); -} - -void zcfree (voidpf opaque, voidpf ptr) -{ - if (opaque) opaque = 0; /* to make compiler happy */ - _hfree(ptr); -} - -#endif /* MSC */ - - -#ifndef MY_ZCALLOC /* Any system without a special alloc function */ - -#ifndef STDC -extern voidp calloc OF((uInt items, uInt size)); -extern void free OF((voidpf ptr)); -#endif - -voidpf zcalloc (opaque, items, size) - voidpf opaque; - unsigned items; - unsigned size; -{ - if (opaque) items += size - size; /* make compiler happy */ - return (voidpf)calloc(items, size); -} - -void zcfree (opaque, ptr) - voidpf opaque; - voidpf ptr; -{ - free(ptr); - if (opaque) return; /* make compiler happy */ -} - -#endif /* MY_ZCALLOC */ diff --git a/collects/plot/src/all/zutil.h b/collects/plot/src/all/zutil.h deleted file mode 100644 index 1f443e8cb3..0000000000 --- a/collects/plot/src/all/zutil.h +++ /dev/null @@ -1,220 +0,0 @@ -/* zutil.h -- internal interface and configuration of the compression library - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* @(#) $Id: zutil.h,v 1.1 2004/03/01 20:54:56 cozmic Exp $ */ - -#ifndef _Z_UTIL_H -#define _Z_UTIL_H - -#include "zlib.h" - -#ifdef STDC -# include -# include -# include -#endif -#ifdef NO_ERRNO_H - extern int errno; -#else -# include -#endif - -#ifndef local -# define local static -#endif -/* compile with -Dlocal if your debugger can't find static symbols */ - -typedef unsigned char uch; -typedef uch FAR uchf; -typedef unsigned short ush; -typedef ush FAR ushf; -typedef unsigned long ulg; - -extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */ -/* (size given to avoid silly warnings with Visual C++) */ - -#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] - -#define ERR_RETURN(strm,err) \ - return (strm->msg = (char*)ERR_MSG(err), (err)) -/* To be used only when the state is known to be valid */ - - /* common constants */ - -#ifndef DEF_WBITS -# define DEF_WBITS MAX_WBITS -#endif -/* default windowBits for decompression. MAX_WBITS is for compression only */ - -#if MAX_MEM_LEVEL >= 8 -# define DEF_MEM_LEVEL 8 -#else -# define DEF_MEM_LEVEL MAX_MEM_LEVEL -#endif -/* default memLevel */ - -#define STORED_BLOCK 0 -#define STATIC_TREES 1 -#define DYN_TREES 2 -/* The three kinds of block type */ - -#define MIN_MATCH 3 -#define MAX_MATCH 258 -/* The minimum and maximum match lengths */ - -#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ - - /* target dependencies */ - -#ifdef MSDOS -# define OS_CODE 0x00 -# if defined(__TURBOC__) || defined(__BORLANDC__) -# if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) - /* Allow compilation with ANSI keywords only enabled */ - void _Cdecl farfree( void *block ); - void *_Cdecl farmalloc( unsigned long nbytes ); -# else -# include -# endif -# else /* MSC or DJGPP */ -# include -# endif -#endif - -#ifdef OS2 -# define OS_CODE 0x06 -#endif - -#ifdef WIN32 /* Window 95 & Windows NT */ -# define OS_CODE 0x0b -#endif - -#if defined(VAXC) || defined(VMS) -# define OS_CODE 0x02 -# define F_OPEN(name, mode) \ - fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") -#endif - -#ifdef AMIGA -# define OS_CODE 0x01 -#endif - -#if defined(ATARI) || defined(atarist) -# define OS_CODE 0x05 -#endif - -#if defined(MACOS) || defined(TARGET_OS_MAC) -# define OS_CODE 0x07 -# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os -# include /* for fdopen */ -# else -# ifndef fdopen -# define fdopen(fd,mode) NULL /* No fdopen() */ -# endif -# endif -#endif - -#ifdef __50SERIES /* Prime/PRIMOS */ -# define OS_CODE 0x0F -#endif - -#ifdef TOPS20 -# define OS_CODE 0x0a -#endif - -#if defined(_BEOS_) || defined(RISCOS) -# define fdopen(fd,mode) NULL /* No fdopen() */ -#endif - -#if (defined(_MSC_VER) && (_MSC_VER > 600)) -# define fdopen(fd,type) _fdopen(fd,type) -#endif - - - /* Common defaults */ - -#ifndef OS_CODE -# define OS_CODE 0x03 /* assume Unix */ -#endif - -#ifndef F_OPEN -# define F_OPEN(name, mode) fopen((name), (mode)) -#endif - - /* functions */ - -#ifdef HAVE_STRERROR - extern char *strerror OF((int)); -# define zstrerror(errnum) strerror(errnum) -#else -# define zstrerror(errnum) "" -#endif - -#if defined(pyr) -# define NO_MEMCPY -#endif -#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) - /* Use our own functions for small and medium model with MSC <= 5.0. - * You may have to use the same strategy for Borland C (untested). - * The __SC__ check is for Symantec. - */ -# define NO_MEMCPY -#endif -#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) -# define HAVE_MEMCPY -#endif -#ifdef HAVE_MEMCPY -# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ -# define zmemcpy _fmemcpy -# define zmemcmp _fmemcmp -# define zmemzero(dest, len) _fmemset(dest, 0, len) -# else -# define zmemcpy memcpy -# define zmemcmp memcmp -# define zmemzero(dest, len) memset(dest, 0, len) -# endif -#else - extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); - extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); - extern void zmemzero OF((Bytef* dest, uInt len)); -#endif - -/* Diagnostic functions */ -#ifdef DEBUG -# include - extern int z_verbose; - extern void z_error OF((char *m)); -# define Assert(cond,msg) {if(!(cond)) z_error(msg);} -# define Trace(x) {if (z_verbose>=0) fprintf x ;} -# define Tracev(x) {if (z_verbose>0) fprintf x ;} -# define Tracevv(x) {if (z_verbose>1) fprintf x ;} -# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} -# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} -#else -# define Assert(cond,msg) -# define Trace(x) -# define Tracev(x) -# define Tracevv(x) -# define Tracec(c,x) -# define Tracecv(c,x) -#endif - - -typedef uLong (ZEXPORT *check_func) OF((uLong check, const Bytef *buf, - uInt len)); -voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); -void zcfree OF((voidpf opaque, voidpf ptr)); - -#define ZALLOC(strm, items, size) \ - (*((strm)->zalloc))((strm)->opaque, (items), (size)) -#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) -#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} - -#endif /* _Z_UTIL_H */ diff --git a/collects/plot/view.rkt b/collects/plot/view.rkt index c9394f272f..93e9fd3e7b 100644 --- a/collects/plot/view.rkt +++ b/collects/plot/view.rkt @@ -66,14 +66,14 @@ (x-label "X axis") (y-label "Y axis") (title "") - (device 'png) + (device 'dc) (fgcolor '( 0 0 0)) (bgcolor '(255 255 255)) (lncolor '(255 0 0 ))) - (define bitmap #f) (define x-size 400) (define y-size 300) + (define bitmap (make-bitmap width height)) (inherit set-bitmap @@ -118,44 +118,48 @@ ; does housekeeping/setup for plplot (define (start-plot) (cond - [(eq? device 'png) - (set! bitmap (if out-file - (build-path out-file) - (make-temporary-file))) + [(eq? device 'dc) (init-colors) (pl-setup-page width height) - (pl-set-device "png") - (pl-set-output-file (path->string bitmap)) - (pl-init-plot)] - ; [(eq? device 'mem) - ; (init-colors) - ; (set! bitmap (make-u8vector (* x-size y-size 4) 255)) - ; (pl-setup-memory x-size y-size bitmap) - ; (pl-set-device "mem") - ; (pl-init-plot)] + (pl-set-device "dc") + (let ([dev (pl-init-plot)]) + (init-dev! dev (let ([dc (make-object bitmap-dc% bitmap)]) + (send dc set-origin 0 height) + (send dc set-scale 1 -1) + (send dc set-smoothing 'aligned) + (new (class object% + (define/public (draw-line x1 y1 x2 y2) + (send dc draw-line x1 y1 x2 y2)) + (define/public (draw-lines points) + (send dc draw-lines points)) + (define/public (draw-polygon points) + (send dc draw-polygon points)) + (define/public (set-width n) + (send dc set-pen (send (send dc get-pen) get-color) n 'solid)) + (define/public (set-index-color i) + (let ([color (make-object color% (symbol->string (car (list-ref colors i))))]) + (send dc set-pen color (send (send dc get-pen) get-width) 'solid) + (send dc set-brush color 'solid))) + (define/public (set-rgb-color r g b) + (let ([color (make-object color% r g b)]) + (send dc set-pen color (send (send dc get-pen) get-width) 'solid) + (send dc set-brush color 'solid))) + (define/public (start-page) (void)) + (define/public (end-page) (void)) + (define/public (end-doc) + (send dc set-bitmap #f)) + (super-new))))))] [else (error "Incorrect device specified")])) ; finish the plot.. loads the file (define (finish-plot) (cond - [(eq? device 'png) + [(eq? device 'dc) (pl-finish-plot) - (load-file bitmap) - (or out-file (delete-file bitmap))] -; [(eq? device 'mem) -; (pl-finish-plot) -; (set-bitmap (bits->bitmap-dc% bitmap))] + (set-bitmap bitmap)] [else (error "Incorrect device specified")])) - - ;(define (bits->bitmap-dc% bitmap) - ; (let ((bmdc (instantiate bitmap-dc% () (bitmap (make-object bitmap% x-size y-size #f)))) - ; (result-string (u8vec->scheme-string bitmap))) - ; (send bmdc set-argb-pixels 0 0 x-size y-size result-string) - ; (begin0 - ; (send bmdc get-bitmap) - ; (send bmdc set-bitmap #f)))) (super-instantiate ()))) diff --git a/src/Makefile.in b/src/Makefile.in index 1042d7e059..72a5e8a916 100644 --- a/src/Makefile.in +++ b/src/Makefile.in @@ -31,20 +31,28 @@ all: 3m: cd racket; $(MAKE) 3m $(MAKE) @MAKE_GRACKET@-3m + $(MAKE) @MAKE_PLOT@-3m gracket-3m: cd gracket; $(MAKE) 3m +plot-3m: + cd plot; $(MAKE) 3m + no-3m: $(NOOP) cgc: cd racket; $(MAKE) cgc $(MAKE) @MAKE_GRACKET@-cgc + $(MAKE) @MAKE_PLOT@-cgc gracket-cgc: cd gracket; $(MAKE) cgc +plot-cgc: + cd plot; $(MAKE) cgc + no-cgc: $(NOOP) @@ -76,6 +84,7 @@ install-common-first: mkdir -p $(ALLDIRINFO) install-common-middle: + $(MAKE) install-@MAKE_PLOT@ $(MAKE) @MAKE_COPYTREE@-run $(MAKE) install-@MAKE_GRACKET@-post-collects $(MAKE) lib-finish @@ -83,6 +92,12 @@ install-common-middle: install-common-last: $(MAKE) fix-paths +install-plot: + cd plot; $(MAKE) install + +install-no: + $(NOOP) + lib-finish: @LIBFINISH@ "$(libdir)" @@ -161,6 +176,7 @@ install-both-common: $(MAKE) install-common-first cd racket; $(MAKE) install-both $(MAKE) install-@MAKE_GRACKET@-both + $(MAKE) install-@MAKE_PLOT@-both $(MAKE) install-common-middle install-both: diff --git a/src/configure b/src/configure index 711e1a810c..96d44ec0e4 100755 --- a/src/configure +++ b/src/configure @@ -703,6 +703,7 @@ FRAMEWORK_REL_INSTALL FRAMEWORK_PREFIX INSTALL_ORIG_TREE EXE_SUFFIX +SO_SUFFIX MZRT_CGC_FLAGS LIBATOM LIBSFX @@ -712,6 +713,7 @@ ICP MRLIBINSTALL LIBFINISH MAKE_GRACKET +MAKE_PLOT MAKE_WBUILD MAKE_COPYTREE MAKE_FINISH @@ -1322,6 +1324,7 @@ Optional Features: --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no) --enable-FEATURE[=ARG] include FEATURE [ARG=yes] --enable-gracket compile GRacket as well as Racket (enabled by default) + --enable-plot compile plot libraries (enabled by default) --enable-docs build docs on install (enabled by default) --enable-shared create shared libraries --enable-dynlib same as --enable-shared @@ -1806,6 +1809,13 @@ else enable_gracket=yes fi +# Check whether --enable-plot was given. +if test "${enable_plot+set}" = set; then + enableval=$enable_plot; +else + enable_plot=yes +fi + # Check whether --enable-docs was given. if test "${enable_docs+set}" = set; then enableval=$enable_docs; @@ -2195,6 +2205,7 @@ show_explicitly_enabled "${enable_xonx}" "X-on-X" show_explicitly_enabled "${enable_shared}" "Shared libraries" show_explicitly_disabled "${enable_gracket}" GRacket +show_explicitly_disabled "${enable_plot}" Plot if test "$LIBTOOLPROG" != "" ; then echo "=== Libtool program: $LIBTOOLPROG" @@ -2266,6 +2277,7 @@ ar_libtool_no_undefined="" LIBRACKET_DEP="" EXE_SUFFIX= +SO_SUFFIX=.so MMM=3m MMM_INSTALLED= @@ -5297,9 +5309,7 @@ case $OS in STRIP_DEBUG="/usr/bin/strip -S" - # zlib comes with the OS - ZLIB_A="" - ZLIB_INC="" + SO_SUFFIX=.dylib GC_THREADS_FLAG="-DGC_DARWIN_THREADS" @@ -9185,6 +9195,8 @@ LIBS="$LIBS $EXTRALIBS" + + @@ -9256,6 +9268,14 @@ fi makefiles="$makefiles foreign/Makefile" ac_configure_args="$ac_configure_args$SUB_CONFIGURE_EXTRAS" +if test "${enable_plot}" = "yes" ; then + makefiles="$makefiles + plot/Makefile" + MAKE_PLOT=plot +else + MAKE_PLOT=no +fi + if test "${enable_gracket}" = "yes" ; then makefiles="$makefiles gracket/Makefile @@ -9968,6 +9988,7 @@ FRAMEWORK_REL_INSTALL!$FRAMEWORK_REL_INSTALL$ac_delim FRAMEWORK_PREFIX!$FRAMEWORK_PREFIX$ac_delim INSTALL_ORIG_TREE!$INSTALL_ORIG_TREE$ac_delim EXE_SUFFIX!$EXE_SUFFIX$ac_delim +SO_SUFFIX!$SO_SUFFIX$ac_delim MZRT_CGC_FLAGS!$MZRT_CGC_FLAGS$ac_delim LIBATOM!$LIBATOM$ac_delim LIBSFX!$LIBSFX$ac_delim @@ -9975,7 +9996,6 @@ WXLIBS!$WXLIBS$ac_delim WXVARIANT!$WXVARIANT$ac_delim ICP!$ICP$ac_delim MRLIBINSTALL!$MRLIBINSTALL$ac_delim -LIBFINISH!$LIBFINISH$ac_delim _ACEOF if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then @@ -10017,7 +10037,9 @@ _ACEOF ac_delim='%!_!# ' for ac_last_try in false false false false false :; do cat >conf$$subs.sed <<_ACEOF +LIBFINISH!$LIBFINISH$ac_delim MAKE_GRACKET!$MAKE_GRACKET$ac_delim +MAKE_PLOT!$MAKE_PLOT$ac_delim MAKE_WBUILD!$MAKE_WBUILD$ac_delim MAKE_COPYTREE!$MAKE_COPYTREE$ac_delim MAKE_FINISH!$MAKE_FINISH$ac_delim @@ -10052,7 +10074,7 @@ LIBOBJS!$LIBOBJS$ac_delim LTLIBOBJS!$LTLIBOBJS$ac_delim _ACEOF - if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 33; then + if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 35; then break elif $ac_last_try; then { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5 diff --git a/src/plot/Makefile.in b/src/plot/Makefile.in new file mode 100644 index 0000000000..14c0d190af --- /dev/null +++ b/src/plot/Makefile.in @@ -0,0 +1,58 @@ + +srcdir = @srcdir@ +prefix = @prefix@ +exec_prefix = @exec_prefix@ +bindir = @bindir@ +libdir = @libdir@ +libpltdir = @libpltdir@ +collectsdir = @collectsdir@ +builddir = @builddir@ + +ICP=@ICP@ + +PLPLOT_SRCS = $(srcdir)/plplot/dc_drv.c \ + $(srcdir)/plplot/plcont.c \ + $(srcdir)/plplot/plfill.c \ + $(srcdir)/plplot/plmap.c \ + $(srcdir)/plplot/plshade.c \ + $(srcdir)/plplot/plwind.c \ + $(srcdir)/plplot/pdfutils.c \ + $(srcdir)/plplot/plcore.c \ + $(srcdir)/plplot/plgridd.c \ + $(srcdir)/plplot/plmeta.c \ + $(srcdir)/plplot/plstripc.c \ + $(srcdir)/plplot/plargs.c \ + $(srcdir)/plplot/plctrl.c \ + $(srcdir)/plplot/plhist.c \ + $(srcdir)/plplot/plot3d.c \ + $(srcdir)/plplot/plsym.c \ + $(srcdir)/plplot/plbox.c \ + $(srcdir)/plplot/plcvt.c \ + $(srcdir)/plplot/plimage.c \ + $(srcdir)/plplot/plpage.c \ + $(srcdir)/plplot/pltick.c \ + $(srcdir)/plplot/plbuf.c \ + $(srcdir)/plplot/pldtik.c \ + $(srcdir)/plplot/plline.c \ + $(srcdir)/plplot/plsdef.c \ + $(srcdir)/plplot/plvpor.c + +FIT_SRCS = $(srcdir)/fit/fit.c $(srcdir)/fit/matrix.c + +XCOLLECTS = -X ../racket/gc2/xform-collects + +CC = @CC@ + +# In 3m mode, we can reply on an xform-collects setup +3m: + env CC="$(CC)" LD="@MZLINKER@" ../racket/racket3m $(XCOLLECTS) $(srcdir)/build.rkt "libplplot" $(PLPLOT_SRCS) + env CC="$(CC)" LD="@MZLINKER@" ../racket/racket3m $(XCOLLECTS) $(srcdir)/build.rkt "libfit" $(FIT_SRCS) + +# In just-cgc mode, it's slow to load build.rkt: +cgc: + env CC="$(CC)" LD="@MZLINKER@" ../racket/racketcgc -c $(srcdir)/build.rkt "libplplot" $(PLPLOT_SRCS) + env CC="$(CC)" LD="@MZLINKER@" ../racket/racketcgc -c $(srcdir)/build.rkt "libfit" $(FIT_SRCS) + +install: + cd ..; $(ICP) plot/libplplot@SO_SUFFIX@ "$(DESTDIR)$(libpltdir)/libplplot@SO_SUFFIX@" + cd ..; $(ICP) plot/libfit@SO_SUFFIX@ "$(DESTDIR)$(libpltdir)/libfit@SO_SUFFIX@" diff --git a/src/plot/build.rkt b/src/plot/build.rkt new file mode 100644 index 0000000000..8bd0b99bb4 --- /dev/null +++ b/src/plot/build.rkt @@ -0,0 +1,32 @@ +(module build racket/base + (require racket/path + racket/file + dynext/file + dynext/link + dynext/compile) + + (define-values (libname c-files) + (let ([l (vector->list (current-command-line-arguments))]) + (values (car l) + (cdr l)))) + + (define sys-subpath (system-library-subpath #f)) + + (define so-name (append-extension-suffix libname)) + (parameterize (;; we compile a simple .so, not an extension + [current-standard-link-libraries '()]) + (when (or (not (file-exists? so-name)) + (let ([so-time (file-or-directory-modify-seconds so-name)]) + (for/or ([f c-files]) + ((file-or-directory-modify-seconds f) . > . so-time)))) + (let ([o-files + (for/list ([c-file c-files]) + (let ([o-file (append-object-suffix (path-replace-suffix (file-name-from-path c-file) #""))]) + ;; first #f means not quiet (here and in link-extension) + (compile-extension #f c-file o-file null) + o-file))]) + (let* ([flags (if (string=? "i386-cygwin" (path->string sys-subpath)) + ;; DLL needs every dependence explicit: + '("-lc" "-lm" "-lcygwin" "-lkernel32") + null)]) + (link-extension #f (append o-files flags) so-name)))))) diff --git a/src/plot/dllexport.h b/src/plot/dllexport.h new file mode 100644 index 0000000000..b0f4023d2b --- /dev/null +++ b/src/plot/dllexport.h @@ -0,0 +1,6 @@ + +#if (defined(__WIN32__) || defined(WIN32) || defined(_WIN32)) +# define MZ_DLLEXPORT __declspec(dllexport) +#else +# define MZ_DLLEXPORT +#endif diff --git a/collects/plot/src/fit/fit.c b/src/plot/fit/fit.c similarity index 100% rename from collects/plot/src/fit/fit.c rename to src/plot/fit/fit.c diff --git a/collects/plot/src/fit/fit.h b/src/plot/fit/fit.h similarity index 98% rename from collects/plot/src/fit/fit.h rename to src/plot/fit/fit.h index 594084c9ac..871bfff387 100644 --- a/collects/plot/src/fit/fit.h +++ b/src/plot/fit/fit.h @@ -30,7 +30,7 @@ * This software is provided "as is" without express or implied warranty. */ -#include +#include "../dllexport.h" MZ_DLLEXPORT double * do_fit(void * function, diff --git a/collects/plot/src/fit/matrix.c b/src/plot/fit/matrix.c similarity index 100% rename from collects/plot/src/fit/matrix.c rename to src/plot/fit/matrix.c diff --git a/collects/plot/src/fit/matrix.h b/src/plot/fit/matrix.h similarity index 98% rename from collects/plot/src/fit/matrix.h rename to src/plot/fit/matrix.h index 415703aa5e..3201566d6c 100644 --- a/collects/plot/src/fit/matrix.h +++ b/src/plot/fit/matrix.h @@ -34,7 +34,7 @@ #ifndef MATRIX_H #define MATRIX_H -#include +#include "../dllexport.h" #ifdef EXT diff --git a/src/plot/plplot/dc_drv.c b/src/plot/plplot/dc_drv.c new file mode 100644 index 0000000000..b87956953a --- /dev/null +++ b/src/plot/plplot/dc_drv.c @@ -0,0 +1,266 @@ +/* + Device driver whose handlers are inplemented in Racket + using dc<%>. +*/ + +#include "plDevs.h" +#include "plplotP.h" +#include "drivers.h" + +/* Device info */ +char* plD_DEVICE_INFO_dc = "dc:dc<%>:0:dc:50:dc"; + +void plD_init_dc (PLStream *); +void plD_line_dc (PLStream *, short, short, short, short); +void plD_polyline_dc (PLStream *, short *, short *, PLINT); +void plD_eop_dc (PLStream *); +void plD_eop_jpeg (PLStream *); +void plD_bop_dc (PLStream *); +void plD_tidy_dc (PLStream *); +void plD_state_dc (PLStream *, PLINT); +void plD_esc_dc (PLStream *, PLINT, void *); + +typedef struct { + void *p; + void (*drawLine)(void *p, short x1a, short y1a, short x2a, short y2a); + void (*drawLines)(void *p, short *xa, short *ya, PLINT npts); + void (*fillPoly)(void *p, short *xa, short *ya, PLINT npts); + void (*setWidth)(void *p, int w); + void (*setColor)(void *p, short i); + void (*setColorRGB)(void *p, short r, short g, short b); + void (*startPage)(void *p); + void (*endPage)(void *p); + void (*endDoc)(void *p); +} dc_Dev; + +void plD_dispatch_init_dc( PLDispatchTable *pdt ) +{ + pdt->pl_MenuStr = "drawing context"; + pdt->pl_DevName = "dc<%>"; + pdt->pl_type = plDevType_FileOriented; + pdt->pl_seq = 50; + pdt->pl_init = (plD_init_fp) plD_init_dc; + pdt->pl_line = (plD_line_fp) plD_line_dc; + pdt->pl_polyline = (plD_polyline_fp) plD_polyline_dc; + pdt->pl_eop = (plD_eop_fp) plD_eop_dc; + pdt->pl_bop = (plD_bop_fp) plD_bop_dc; + pdt->pl_tidy = (plD_tidy_fp) plD_tidy_dc; + pdt->pl_state = (plD_state_fp) plD_state_dc; + pdt->pl_esc = (plD_esc_fp) plD_esc_dc; +} + +/*--------------------------------------------------------------------------*\ + * plD_init_dc_Dev() + * +\*--------------------------------------------------------------------------*/ + +static void +plD_init_dc_Dev(PLStream *pls) +{ + /* Allocate and initialize device-specific data */ + dc_Dev *dev; + + if (pls->dev != NULL) + free((void *) pls->dev); + + pls->dev = calloc(1, (size_t) sizeof(dc_Dev)); + if (pls->dev == NULL) + plexit("plD_init_dc_Dev: Out of memory."); + + dev = (dc_Dev *) pls->dev; +} + +/*----------------------------------------------------------------------*\ + * plD_init_dc() + * + * Initialize device. +\*----------------------------------------------------------------------*/ + +void plD_init_dc(PLStream *pls) +{ + dc_Dev *dev; + + pls->termin = 0; /* Not an interactive device */ + pls->icol0 = 1; + pls->bytecnt = 0; + pls->page = 0; + pls->dev_fill0 = 1; /* Can do solid fills */ + + if (!pls->colorset) + pls->color = 1; /* Is a color device */ + +/* Initialize family file info */ + plFamInit(pls); + +/* Allocate and initialize device-specific data */ + plD_init_dc_Dev(pls); + dev=(dc_Dev *)pls->dev; + + if (pls->xlength <= 0 || pls->ylength <=0) + { +/* use default width, height of 800x600 if not specifed by -geometry option + * or plspage */ + plspage(0., 0., 800, 600, 0, 0); + } + + pls->graphx = GRAPHICS_MODE; + + if (pls->xdpi<=0) + { +/* This corresponds to a typical monitor resolution of 4 pixels/mm. */ + plspage(4.*25.4, 4.*25.4, 0, 0, 0, 0); + } + else + { + pls->ydpi=pls->xdpi; /* Set X and Y dpi's to the same value */ + } +/* Convert DPI to pixels/mm */ + plP_setpxl(1*pls->xdpi/25.4,1*pls->ydpi/25.4); + + plP_setphy(0, 1*(pls->xlength - 1), 0, 1*(pls->ylength - 1)); +} + +/*----------------------------------------------------------------------*\ + * plD_line_dc() + * + * Draw a line in the current color from (x1,y1) to (x2,y2). +\*----------------------------------------------------------------------*/ + +void +plD_line_dc(PLStream *pls, short x1a, short y1a, short x2a, short y2a) +{ + dc_Dev *dev=(dc_Dev *)pls->dev; + + if (dev->drawLine) + dev->drawLine(dev->p, x1a, y1a, x2a, y2a); +} + +/*----------------------------------------------------------------------*\ + * plD_polyline_dc() + * + * Draw a polyline in the current color. +\*----------------------------------------------------------------------*/ + +void +plD_polyline_dc(PLStream *pls, short *xa, short *ya, PLINT npts) +{ + dc_Dev *dev=(dc_Dev *)pls->dev; + + if (dev->drawLines) + dev->drawLines(dev->p, xa, ya, npts); +} + + +/*----------------------------------------------------------------------*\ + * fill_polygon() + * + * Fill polygon described in points pls->dev_x[] and pls->dev_y[]. +\*----------------------------------------------------------------------*/ + +static void +fill_polygon(PLStream *pls) +{ + dc_Dev *dev=(dc_Dev *)pls->dev; + + if (dev->fillPoly) + dev->fillPoly(dev->p, pls->dev_x, pls->dev_y, pls->dev_npts); +} + + +/*----------------------------------------------------------------------*\ + * plD_state_dc() + * + * Handle change in PLStream state (color, pen width, fill attribute, etc). +\*----------------------------------------------------------------------*/ + +void +plD_state_dc(PLStream *pls, PLINT op) +{ + dc_Dev *dev=(dc_Dev *)pls->dev; + + switch (op) { + + case PLSTATE_WIDTH: + if (dev->setWidth) + dev->setWidth(dev->p, pls->width); + break; + + case PLSTATE_COLOR0: + + if (pls->icol0 == PL_RGB_COLOR) { + if (dev->setColorRGB) + dev->setColorRGB(dev->p, pls->curcolor.r, pls->curcolor.g, pls->curcolor.b); + } else { + if (dev->setColor) + dev->setColor(dev->p, pls->icol0); + } + break; + + case PLSTATE_COLOR1: + if (dev->setColorRGB) + dev->setColorRGB(dev->p, pls->curcolor.r, pls->curcolor.g, pls->curcolor.b); + break; + } +} + + +/*----------------------------------------------------------------------*\ + * plD_esc_dc() + * + * Escape function. +\*----------------------------------------------------------------------*/ + +void plD_esc_dc(PLStream *pls, PLINT op, void *ptr) +{ + switch (op) { + + case PLESC_FILL: /* fill */ + fill_polygon(pls); + break; + + } +} + +/*----------------------------------------------------------------------*\ + * plD_bop_dc() + * + * Set up for the next page. + * Advance to next family file if necessary (file output). +\*----------------------------------------------------------------------*/ + +void plD_bop_dc(PLStream *pls) +{ + dc_Dev *dev=(dc_Dev *)pls->dev; + + if (dev->startPage) + dev->startPage(dev->p); +} + +/*----------------------------------------------------------------------*\ + * plD_tidy_dc() + * + * Close graphics file or otherwise clean up. +\*----------------------------------------------------------------------*/ + +void plD_tidy_dc(PLStream *pls) +{ + dc_Dev *dev=(dc_Dev *)pls->dev; + + if (dev->endDoc) + dev->endDoc(dev->p); + +} + +/*----------------------------------------------------------------------*\ + * plD_eop_dc() + * + * End of page. +\*----------------------------------------------------------------------*/ + +void plD_eop_dc(PLStream *pls) +{ + dc_Dev *dev=(dc_Dev *)pls->dev; + + if (dev->endPage) + dev->endPage(dev->p); +} diff --git a/collects/plot/src/all/disptab.h b/src/plot/plplot/disptab.h similarity index 100% rename from collects/plot/src/all/disptab.h rename to src/plot/plplot/disptab.h diff --git a/collects/plot/src/all/drivers.h b/src/plot/plplot/drivers.h similarity index 98% rename from collects/plot/src/all/drivers.h rename to src/plot/plplot/drivers.h index aab3e7664e..30fc09190b 100644 --- a/collects/plot/src/all/drivers.h +++ b/src/plot/plplot/drivers.h @@ -59,6 +59,7 @@ void plD_dispatch_init_tkwin ( PLDispatchTable *pdt ); void plD_dispatch_init_pstex ( PLDispatchTable *pdt ); void plD_dispatch_init_ntk ( PLDispatchTable *pdt ); void plD_dispatch_init_mem ( PLDispatchTable *pdt ); +void plD_dispatch_init_dc ( PLDispatchTable *pdt ); /* Prototypes for plot buffer calls. */ diff --git a/collects/plot/src/all/metadefs.h b/src/plot/plplot/metadefs.h similarity index 100% rename from collects/plot/src/all/metadefs.h rename to src/plot/plplot/metadefs.h diff --git a/collects/plot/src/all/nan.h b/src/plot/plplot/nan.h similarity index 100% rename from collects/plot/src/all/nan.h rename to src/plot/plplot/nan.h diff --git a/collects/plot/src/all/pdf.h b/src/plot/plplot/pdf.h similarity index 100% rename from collects/plot/src/all/pdf.h rename to src/plot/plplot/pdf.h diff --git a/collects/plot/src/all/pdfutils.c b/src/plot/plplot/pdfutils.c similarity index 100% rename from collects/plot/src/all/pdfutils.c rename to src/plot/plplot/pdfutils.c diff --git a/collects/plot/src/all/plConfig.h b/src/plot/plplot/plConfig.h similarity index 100% rename from collects/plot/src/all/plConfig.h rename to src/plot/plplot/plConfig.h diff --git a/collects/plot/src/all/plDevs.h b/src/plot/plplot/plDevs.h similarity index 100% rename from collects/plot/src/all/plDevs.h rename to src/plot/plplot/plDevs.h diff --git a/collects/plot/src/all/plargs.c b/src/plot/plplot/plargs.c similarity index 100% rename from collects/plot/src/all/plargs.c rename to src/plot/plplot/plargs.c diff --git a/collects/plot/src/all/plbox.c b/src/plot/plplot/plbox.c similarity index 100% rename from collects/plot/src/all/plbox.c rename to src/plot/plplot/plbox.c diff --git a/collects/plot/src/all/plbuf.c b/src/plot/plplot/plbuf.c similarity index 100% rename from collects/plot/src/all/plbuf.c rename to src/plot/plplot/plbuf.c diff --git a/collects/plot/src/all/plcdemos.h b/src/plot/plplot/plcdemos.h similarity index 100% rename from collects/plot/src/all/plcdemos.h rename to src/plot/plplot/plcdemos.h diff --git a/collects/plot/src/all/plcont.c b/src/plot/plplot/plcont.c similarity index 100% rename from collects/plot/src/all/plcont.c rename to src/plot/plplot/plcont.c diff --git a/collects/plot/src/all/plcore.c b/src/plot/plplot/plcore.c similarity index 99% rename from collects/plot/src/all/plcore.c rename to src/plot/plplot/plcore.c index e3f2362af4..206b66d29a 100644 --- a/collects/plot/src/all/plcore.c +++ b/src/plot/plplot/plcore.c @@ -1155,7 +1155,7 @@ c_plstart(const char *devname, PLINT nx, PLINT ny) \*--------------------------------------------------------------------------*/ MZ_DLLEXPORT -void +void * c_plinit(void) { PLFLT lx, ly, xpmm_loc, ypmm_loc, aspect_old, aspect_new; @@ -1266,6 +1266,8 @@ c_plinit(void) plP_gpixmm(&xpmm_loc, &ypmm_loc); plP_setpxl(xpmm_loc*plsc->caspfactor, ypmm_loc/plsc->caspfactor); + + return plsc->dev; } /*--------------------------------------------------------------------------*\ diff --git a/collects/plot/src/all/plcore.h b/src/plot/plplot/plcore.h similarity index 99% rename from collects/plot/src/all/plcore.h rename to src/plot/plplot/plcore.h index 9f619ce4b4..1a3927ffa6 100644 --- a/collects/plot/src/all/plcore.h +++ b/src/plot/plplot/plcore.h @@ -219,6 +219,7 @@ static PLDispatchInit static_device_initializers[] = { #if defined(PLD_tkwin) && !defined(ENABLE_DYNDRIVERS) plD_dispatch_init_tkwin, #endif + plD_dispatch_init_dc, NULL }; diff --git a/collects/plot/src/all/plctrl.c b/src/plot/plplot/plctrl.c similarity index 100% rename from collects/plot/src/all/plctrl.c rename to src/plot/plplot/plctrl.c diff --git a/collects/plot/src/all/plcvt.c b/src/plot/plplot/plcvt.c similarity index 100% rename from collects/plot/src/all/plcvt.c rename to src/plot/plplot/plcvt.c diff --git a/collects/plot/src/all/pldebug.h b/src/plot/plplot/pldebug.h similarity index 100% rename from collects/plot/src/all/pldebug.h rename to src/plot/plplot/pldebug.h diff --git a/collects/plot/src/all/pldtik.c b/src/plot/plplot/pldtik.c similarity index 100% rename from collects/plot/src/all/pldtik.c rename to src/plot/plplot/pldtik.c diff --git a/collects/plot/src/all/plevent.h b/src/plot/plplot/plevent.h similarity index 100% rename from collects/plot/src/all/plevent.h rename to src/plot/plplot/plevent.h diff --git a/collects/plot/src/all/plfill.c b/src/plot/plplot/plfill.c similarity index 100% rename from collects/plot/src/all/plfill.c rename to src/plot/plplot/plfill.c diff --git a/collects/plot/src/all/plfreetype.h b/src/plot/plplot/plfreetype.h similarity index 100% rename from collects/plot/src/all/plfreetype.h rename to src/plot/plplot/plfreetype.h diff --git a/collects/plot/src/all/plgridd.c b/src/plot/plplot/plgridd.c similarity index 100% rename from collects/plot/src/all/plgridd.c rename to src/plot/plplot/plgridd.c diff --git a/collects/plot/src/all/plhist.c b/src/plot/plplot/plhist.c similarity index 100% rename from collects/plot/src/all/plhist.c rename to src/plot/plplot/plhist.c diff --git a/collects/plot/src/all/plimage.c b/src/plot/plplot/plimage.c similarity index 100% rename from collects/plot/src/all/plimage.c rename to src/plot/plplot/plimage.c diff --git a/collects/plot/src/all/plline.c b/src/plot/plplot/plline.c similarity index 100% rename from collects/plot/src/all/plline.c rename to src/plot/plplot/plline.c diff --git a/collects/plot/src/all/plmap.c b/src/plot/plplot/plmap.c similarity index 100% rename from collects/plot/src/all/plmap.c rename to src/plot/plplot/plmap.c diff --git a/collects/plot/src/all/plmeta.c b/src/plot/plplot/plmeta.c similarity index 100% rename from collects/plot/src/all/plmeta.c rename to src/plot/plplot/plmeta.c diff --git a/collects/plot/src/all/plot3d.c b/src/plot/plplot/plot3d.c similarity index 100% rename from collects/plot/src/all/plot3d.c rename to src/plot/plplot/plot3d.c diff --git a/collects/plot/src/all/plpage.c b/src/plot/plplot/plpage.c similarity index 100% rename from collects/plot/src/all/plpage.c rename to src/plot/plplot/plpage.c diff --git a/collects/plot/src/all/plplot.h b/src/plot/plplot/plplot.h similarity index 99% rename from collects/plot/src/all/plplot.h rename to src/plot/plplot/plplot.h index a8ac98f155..acd3e7bf10 100644 --- a/collects/plot/src/all/plplot.h +++ b/src/plot/plplot/plplot.h @@ -24,7 +24,7 @@ #ifndef __PLPLOT_H__ #define __PLPLOT_H__ -#include "scheme.h" +#include "../dllexport.h" #include "plConfig.h" @@ -1036,7 +1036,7 @@ c_plhls(PLFLT h, PLFLT l, PLFLT s); /* Initializes PLplot, using preset or default options */ MZ_DLLEXPORT -void +void * c_plinit(void); /* Draws a line segment from (x1, y1) to (x2, y2). */ diff --git a/collects/plot/src/all/plplotP.h b/src/plot/plplot/plplotP.h similarity index 100% rename from collects/plot/src/all/plplotP.h rename to src/plot/plplot/plplotP.h diff --git a/collects/plot/src/all/plsdef.c b/src/plot/plplot/plsdef.c similarity index 100% rename from collects/plot/src/all/plsdef.c rename to src/plot/plplot/plsdef.c diff --git a/collects/plot/src/all/plshade.c b/src/plot/plplot/plshade.c similarity index 100% rename from collects/plot/src/all/plshade.c rename to src/plot/plplot/plshade.c diff --git a/collects/plot/src/all/plstripc.c b/src/plot/plplot/plstripc.c similarity index 100% rename from collects/plot/src/all/plstripc.c rename to src/plot/plplot/plstripc.c diff --git a/collects/plot/src/all/plstrm.h b/src/plot/plplot/plstrm.h similarity index 100% rename from collects/plot/src/all/plstrm.h rename to src/plot/plplot/plstrm.h diff --git a/collects/plot/src/all/plsym.c b/src/plot/plplot/plsym.c similarity index 100% rename from collects/plot/src/all/plsym.c rename to src/plot/plplot/plsym.c diff --git a/collects/plot/src/all/pltick.c b/src/plot/plplot/pltick.c similarity index 100% rename from collects/plot/src/all/pltick.c rename to src/plot/plplot/pltick.c diff --git a/collects/plot/src/all/plvpor.c b/src/plot/plplot/plvpor.c similarity index 100% rename from collects/plot/src/all/plvpor.c rename to src/plot/plplot/plvpor.c diff --git a/collects/plot/src/all/plwind.c b/src/plot/plplot/plwind.c similarity index 100% rename from collects/plot/src/all/plwind.c rename to src/plot/plplot/plwind.c diff --git a/collects/plot/src/all/plxwd.h b/src/plot/plplot/plxwd.h similarity index 100% rename from collects/plot/src/all/plxwd.h rename to src/plot/plplot/plxwd.h diff --git a/src/racket/configure.ac b/src/racket/configure.ac index 16068325cd..3c823e76d4 100644 --- a/src/racket/configure.ac +++ b/src/racket/configure.ac @@ -24,6 +24,7 @@ AC_CONFIG_SRCDIR(racket/src/bignum.c) AC_CONFIG_HEADERS([racket/mzconfig.h]) AC_ARG_ENABLE(gracket, [ --enable-gracket compile GRacket as well as Racket (enabled by default)], , enable_gracket=yes ) +AC_ARG_ENABLE(plot, [ --enable-plot compile plot libraries (enabled by default)], , enable_plot=yes ) AC_ARG_ENABLE(docs, [ --enable-docs build docs on install (enabled by default)], , enable_docs=yes) AC_ARG_ENABLE(shared, [ --enable-shared create shared libraries]) AC_ARG_ENABLE(dynlib, [ --enable-dynlib same as --enable-shared]) @@ -267,6 +268,7 @@ show_explicitly_enabled "${enable_xonx}" "X-on-X" show_explicitly_enabled "${enable_shared}" "Shared libraries" show_explicitly_disabled "${enable_gracket}" GRacket +show_explicitly_disabled "${enable_plot}" Plot if test "$LIBTOOLPROG" != "" ; then echo "=== Libtool program: $LIBTOOLPROG" @@ -338,6 +340,7 @@ ar_libtool_no_undefined="" LIBRACKET_DEP="" EXE_SUFFIX= +SO_SUFFIX=.so MMM=3m MMM_INSTALLED= @@ -629,9 +632,7 @@ case $OS in STRIP_DEBUG="/usr/bin/strip -S" - # zlib comes with the OS - ZLIB_A="" - ZLIB_INC="" + SO_SUFFIX=.dylib GC_THREADS_FLAG="-DGC_DARWIN_THREADS" @@ -1163,6 +1164,7 @@ AC_SUBST(FRAMEWORK_REL_INSTALL) AC_SUBST(FRAMEWORK_PREFIX) AC_SUBST(INSTALL_ORIG_TREE) AC_SUBST(EXE_SUFFIX) +AC_SUBST(SO_SUFFIX) AC_SUBST(MZRT_CGC_FLAGS) AC_SUBST(LIBATOM) @@ -1174,6 +1176,7 @@ AC_SUBST(MRLIBINSTALL) AC_SUBST(LIBFINISH) AC_SUBST(MAKE_GRACKET) +AC_SUBST(MAKE_PLOT) AC_SUBST(MAKE_WBUILD) AC_SUBST(MAKE_COPYTREE) AC_SUBST(MAKE_FINISH) @@ -1249,6 +1252,14 @@ fi makefiles="$makefiles foreign/Makefile" ac_configure_args="$ac_configure_args$SUB_CONFIGURE_EXTRAS" +if test "${enable_plot}" = "yes" ; then + makefiles="$makefiles + plot/Makefile" + MAKE_PLOT=plot +else + MAKE_PLOT=no +fi + if test "${enable_gracket}" = "yes" ; then makefiles="$makefiles gracket/Makefile diff --git a/src/racket/gc2/xform-mod.rkt b/src/racket/gc2/xform-mod.rkt index 32a32fb8cf..5e972f3b23 100644 --- a/src/racket/gc2/xform-mod.rkt +++ b/src/racket/gc2/xform-mod.rkt @@ -2,6 +2,13 @@ (require (lib "xform.rkt" "compiler" "private") mzlib/cmdline) + ;; bogus requires that set up files for "plot" compilation: + (require (only racket/path) + (only racket/file) + (only dynext/file) + (only dynext/link) + (only dynext/compile)) + (define precompiling-header? (getenv "XFORM_PRECOMP")) (define precompiled-header (getenv "XFORM_USE_PRECOMP"))