85 lines
2.2 KiB
HTML
85 lines
2.2 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of lispmtopgm</TITLE>
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</HEAD><BODY>
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<H1>lispmtopgm</H1>
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Section: User Commands (1)<BR>Updated: 06 March 1990<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="ixAAB"></A>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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lispmtopgm - convert a Lisp Machine bitmap file into pgm format
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>lispmtopgm</B>
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[<I>lispmfile</I>]
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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Reads a Lisp Machine bitmap as input.
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<A NAME="ixAAC"></A>
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Produces a portable graymap as output.
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<P>
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This is the file format written by the tv:write-bit-array-file function on
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TI Explorer and Symbolics lisp machines.
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<P>
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Multi-plane bitmaps on lisp machines are color; but the lispm image file
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format does not include a color map, so we must treat it as a graymap
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instead. This is unfortunate.
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<A NAME="lbAE"> </A>
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<H2>SEE ALSO</H2>
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<A HREF="/cgi-bin/man/man2html?1+pgmtolispm">pgmtolispm</A>(1), <A HREF="/cgi-bin/man/man2html?5+pgm">pgm</A>(5)
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<A NAME="lbAF"> </A>
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<H2>BUGS</H2>
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The Lispm bitmap file format is a bit quirky; Usually the image in the file
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has its width rounded up to the next higher multiple of 32, but not always.
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If the width is not a multiple of 32, we don't deal with it properly, but
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because of the Lispm microcode, such arrays are probably not image data
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anyway.
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<P>
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Also, the lispm code for saving bitmaps has a bug, in that if you are writing a
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bitmap which is not mod32 across, the file may be up to 7 bits too short! They
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round down instead of up, and we don't handle this bug gracefully.
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<P>
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No color.
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<A NAME="lbAG"> </A>
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<H2>AUTHOR</H2>
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Copyright (C) 1991 by Jamie Zawinski and Jef Poskanzer.
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="1"><A HREF="#lbAB">NAME</A><DD>
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<DT id="2"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="3"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="4"><A HREF="#lbAE">SEE ALSO</A><DD>
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<DT id="5"><A HREF="#lbAF">BUGS</A><DD>
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<DT id="6"><A HREF="#lbAG">AUTHOR</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:18 GMT, March 31, 2021
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</BODY>
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</HTML>
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