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bug#35871: 27.0.50; [PATCH] Fix SVG transparency with Cairo


From: YAMAMOTO Mitsuharu
Subject: bug#35871: 27.0.50; [PATCH] Fix SVG transparency with Cairo
Date: Fri, 24 May 2019 09:02:32 +0900
User-agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM/1.14.9 (Gojō) APEL/10.8 EasyPG/1.0.0 Emacs/25.3 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO)

On Fri, 24 May 2019 05:05:31 +0900,
Kévin Le Gouguec wrote:
> While trying out the Cairo build, I noticed that some SVG images did
> not look as smooth as in the "regular" build.  More specifically,
> semi-transparent parts of SVG images (when the alpha value is neither
> 0% nor 100%) did not seem to be displayed properly.

As I mentioned in (*), the current image support on cairo has several
problems including this one.  I'm thinking about porting the core part
of the image support code on the Mac port, to cairo.

(*): https://lists.gnu.org/r/bug-gnu-emacs/2019-05/msg00205.html 

                                     YAMAMOTO Mitsuharu
                                mituharu@math.s.chiba-u.ac.jp





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