Bug 61169

Summary:	[Chromium] optimize-contrast-canvas.html and optimize-contrast-image.html fails
Product:	WebKit	Reporter:	Fumitoshi Ukai <ukai>
Component:	CSS	Assignee:	Mike Lawther <mikelawther>
Status:	RESOLVED WONTFIX
Severity:	Normal	CC:	adamk, jamesr, mikelawther, pkasting, schenney
Priority:	P2
Version:	528+ (Nightly build)
Hardware:	Unspecified
OS:	Unspecified
Bug Depends on:
Bug Blocks:	108022

Description Fumitoshi Ukai 2011-05-19 23:21:39 PDT

http://trac.webkit.org/changeset/86920 added these two tests, but failed on chromium.
http://test-results.appspot.com/dashboards/flakiness_dashboard.html#group=%40ToT%20-%20chromium.org&tests=css3%2Fimages%2Foptimize-contrast-canvas.html%2Ccss3%2Fimages%2Foptimize-contrast-image.html

Comment 1 Adam Klein 2011-05-24 09:25:21 PDT

Committed r87159: <http://trac.webkit.org/changeset/87159>

Comment 2 Adam Klein 2011-05-24 09:26:06 PDT

Leaving bug open, patch simply added expectations.

Comment 3 Adam Klein 2011-05-26 11:59:36 PDT

Mike/James, any comments on these failures?  The results on Win & Linux look very different (they have gradients) from the Mac results.

Comment 4 Mike Lawther 2011-05-26 15:34:09 PDT

Hi Adam - the gradient look is because Skia is doing a bilinear interpolation instead of a nearest-neighbour - hence the blurring of the edges. The tests are scaling a 2x2 image to 100x100, hence the obviousness of the difference.

I need to look into this - Skia is doing something different with InterpolationQualityNone than what I expect.

Comment 5 Peter Kasting 2011-08-23 14:47:19 PDT

Ping.  It's been three months, this may have fallen off your radar.