Bug 134422

Summary:

Subpixel rendering: Background clipping with subpixel behaves differently when composited.

Product:

WebKit

Reporter:

zalan <zalan>

Component:

Layout and Rendering

Assignee:

zalan <zalan>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

bunhere, cdumez, commit-queue, esprehn+autocc, glenn, gyuyoung.kim, kondapallykalyan, sergio, simon.fraser

Priority:

Keywords:

InRadar, Regression

Version:

528+ (Nightly build)

Hardware:

Unspecified

OS:

Unspecified

Attachments:

Description	Flags
Test reduction	none
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.

<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.