Bug 17162

Summary: quartz and image surfaces don't show the same results
Product: cairo Reporter: Sven Herzberg <sven.herzberg>
Component: quartz backendAssignee: Vladimir Vukicevic <vladimir>
Status: RESOLVED NOTOURBUG QA Contact: cairo-bugs mailing list <cairo-bugs>
Severity: normal    
Priority: medium    
Version: 1.7.4   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments: Testcase (no self-checking, though)
image.png
quartz.png

Description Sven Herzberg 2008-08-15 16:12:47 UTC
Created attachment 18307 [details]
Testcase (no self-checking, though)

I'll attach a testcase (c) and the output images I get on my Mac. Zooming into the images will show off-by-0.5 drawing errors.

As Behdad mentioned on IRC »you should get sharp lines«
Comment 1 Sven Herzberg 2008-08-15 16:18:06 UTC
Created attachment 18308 [details]
image.png
Comment 2 Sven Herzberg 2008-08-15 16:18:36 UTC
Created attachment 18309 [details]
quartz.png
Comment 3 Sven Herzberg 2008-08-26 10:15:27 UTC
Just to save this information; vlad told me that this bug seems to be fixed on Mac OS X 10.5, so it's my 10.4 setup that appears to expose this bug.
Comment 4 Andrea Canciani 2011-01-18 10:37:44 UTC
This seems to be an old Quartz (not cairo-quartz) bug, that has been fixed in more recent MacOS X versions.

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