Bug 76090 - thin gap between adjacent/coincident filled areas
Summary: thin gap between adjacent/coincident filled areas
Status: RESOLVED MOVED
Alias: None
Product: cairo
Classification: Unclassified
Component: general (show other bugs)
Version: 1.12.16
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Chris Wilson
QA Contact: cairo-bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-03-12 19:56 UTC by Rick Brownrigg
Modified: 2018-08-25 13:26 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Attachments
Simple C-code to demonstrate the reported issue (1.18 KB, text/plain)
2014-03-12 19:56 UTC, Rick Brownrigg
Details
example of the gap artifact (945 bytes, image/pdf)
2014-03-12 19:57 UTC, Rick Brownrigg
Details

Description Rick Brownrigg 2014-03-12 19:56:11 UTC
Created attachment 95678 [details]
Simple C-code to demonstrate the reported issue

We have had persistent problems with thin "gaps" appearing between two adjacent fill areas that share a common, long, straight boundary.  A snapshot and a simple program to reproduce the problem are attached.

The issue occurs persistently with the document-type backends, i.e., PDF, PS, SVG.  It also occurs for the image surface as well, but can be eliminated by turning antialiasing off.  

This has been observed for many versions of cairo over the past few years. We have undertaken a number of work-arounds, with various levels of success, but ultimately as seen by the test program, I think its fair to say this graphic artifact should not be present.
Comment 1 Rick Brownrigg 2014-03-12 19:57:56 UTC
Created attachment 95679 [details]
example of the gap artifact
Comment 2 GitLab Migration User 2018-08-25 13:26:55 UTC
-- GitLab Migration Automatic Message --

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

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/cairo/cairo/issues/12.


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