Bug 134422 - Subpixel rendering: Background clipping with subpixel behaves differently when composited.
Summary: Subpixel rendering: Background clipping with subpixel behaves differently whe...
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: zalan
URL:
Keywords: InRadar, Regression
Depends on:
Blocks:
 
Reported: 2014-06-27 16:48 PDT by zalan
Modified: 2014-06-27 18:35 PDT (History)
9 users (show)

See Also:

Attachments
Test reduction (3.80 KB, text/html)
2014-06-27 16:49 PDT, zalan 		no flags Details
Patch (18.66 KB, patch)
2014-06-27 17:14 PDT, zalan 		no flags Details | Formatted Diff | Diff
View All Add an attachment (proposed patch, testcase, etc.)

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Description zalan 2014-06-27 16:48:23 PDT 
Attached testcase shows a problem where elements with subpixel offsets don't paint the right/bottom line of pixels when in compositing layers.

This causes an appearance change when toggling compositing on an element.

<rdar://problem/16764428>
<rdar://problem/17373057>
Comment 1 zalan 2014-06-27 16:49:17 PDT 
Created attachment 234033 [details]
Test reduction
Comment 2 zalan 2014-06-27 17:14:07 PDT 
Created attachment 234034 [details]
Patch
Comment 3 WebKit Commit Bot 2014-06-27 18:34:54 PDT 
Comment on attachment 234034 [details]
Patch

Clearing flags on attachment: 234034

Committed r170563: <http://trac.webkit.org/changeset/170563>
Comment 4 WebKit Commit Bot 2014-06-27 18:35:00 PDT 
All reviewed patches have been landed.  Closing bug.