Bug 30429

Summary: Incorrect AA behaviour copying PDF to Image
Product: cairo Reporter: Ian Britten <britten>
Component: pdf backendAssignee: Adrian Johnson <ajohnson>
Status: RESOLVED MOVED QA Contact: cairo-bugs mailing list <cairo-bugs>
Severity: normal    
Priority: medium    
Version: 1.8.6   
Hardware: All   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments: Example of AA problem when copying PDF to Image

Description Ian Britten 2010-09-28 09:18:17 UTC 
Created attachment 39016 [details]
Example of AA problem when copying PDF to Image

As first mentioned at http://lists.cairographics.org/archives/cairo/2010-September/020901.html , there seems to be some backwards logic regarding disabling AA, when copying a PDF surface to an image surface.  Attached is a sample program that demonstrates the problem.

To me, whether the final image pixels are AA'd or not should be determined by the AA setting on the target image surface, at the time the source PDF is copied to it.  My sample seems to indicate the opposite though - AA needs to be disabled on the *source* PDF surface, _before_ any data is drawn to it (And, the AA setting on the target Image surface is ignored).
Comment 1 GitLab Migration User 2018-08-25 13:32:33 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

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