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racket/draw: faster draw-bitmap when alpha < 1.0

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In common cases, use Cairo's alpha support instead of cloning the
bitmap to apply an alpha.

original commit: c3eae40f4c3dcda84096a544885751205783c1cd
This commit is contained in:
Matthew Flatt 2013-09-27 14:43:25 -04:00
parent c10054b96a
commit b805bfc4ae
1 changed files with 1 additions and 1 deletions
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2
pkgs/gui-pkgs/gui-test/tests/gracket/draw.rkt
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@ -12,7 +12,7 @@
(define sys-path (define sys-path
(lambda (f) (lambda (f)
(build-path (collection-path "icons") f))) (collection-file-path f "icons")))
(define local-path (define local-path
(let ([d (current-load-relative-directory)]) (let ([d (current-load-relative-directory)])