Bug 131525

Summary: Subpixel rendering: WK1: Trail of cruft in redraw during animations.
Product: WebKit Reporter: zalan <zalan>
Component: Layout and RenderingAssignee: zalan <zalan>
Severity: Normal CC: commit-queue, dino, esprehn+autocc, glenn, kondapallykalyan, simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar, Regression
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Description Flags
Patch none

Description zalan 2014-04-10 20:34:39 PDT
Repaint rect is snapped to integral position which can result in cruft. Use enclosing integral rect for now  (until we transition views to device pixel boundaries).
Comment 1 zalan 2014-04-10 20:47:29 PDT
Created attachment 229101 [details]
Comment 2 zalan 2014-04-10 20:48:17 PDT
Comment 3 Simon Fraser (smfr) 2014-04-10 22:02:35 PDT
Comment on attachment 229101 [details]

Can you explain in the change log why WK1 is different? It's not clear to me.
Comment 4 zalan 2014-04-11 09:13:29 PDT
Created attachment 229137 [details]
Comment 5 zalan 2014-04-11 09:15:29 PDT
(In reply to comment #3)
> (From update of attachment 229101 [details])
> Can you explain in the change log why WK1 is different? It's not clear to me.
Done. WK2 has compositing RenderView so RenderLayerBacking takes care of the repaintrects.
Comment 6 WebKit Commit Bot 2014-04-11 09:51:09 PDT
Comment on attachment 229137 [details]

Clearing flags on attachment: 229137

Committed r167129: <http://trac.webkit.org/changeset/167129>
Comment 7 WebKit Commit Bot 2014-04-11 09:51:13 PDT
All reviewed patches have been landed.  Closing bug.