Bug 134422

Summary: Subpixel rendering: Background clipping with subpixel behaves differently when composited.
Product: WebKit Reporter: zalan <zalan>
Component: Layout and RenderingAssignee: zalan <zalan>
Severity: Normal CC: bunhere, cdumez, commit-queue, esprehn+autocc, glenn, gyuyoung.kim, kondapallykalyan, sergio, simon.fraser
Priority: P2 Keywords: InRadar, Regression
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Description Flags
Test reduction
Patch none

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.

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]
Comment 3 WebKit Commit Bot 2014-06-27 18:34:54 PDT
Comment on attachment 234034 [details]

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.