76488 – [skia] css3/images/cross-fade-background-size.html renders incorrectly in Skia

Bug 76488 - [skia] css3/images/cross-fade-background-size.html renders incorrectly in Skia

Summary: [skia] css3/images/cross-fade-background-size.html renders incorrectly in Skia

Status:	RESOLVED WONTFIX

Alias:	None

Product:	WebKit
Classification:	Unclassified
Component:	New Bugs (show other bugs)
Version:	528+ (Nightly build)
Hardware:	Unspecified Unspecified

Importance:	P2 Normal
Assignee:	Nobody

URL:
Keywords:

Depends on:
Blocks:

Reported:	2012-01-17 15:47 PST by James Robinson
Modified:	2013-04-09 13:13 PDT (History)
CC List:	4 users (show)

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Description James Robinson 2012-01-17 15:47:57 PST

http://trac.webkit.org/export/105172/trunk/LayoutTests/css3/images/cross-fade-background-size.html should look like http://trac.webkit.org/browser/trunk/LayoutTests/platform/mac/css3/images/cross-fade-background-size-expected.png?rev=105172 but instead it looks like http://build.chromium.org/f/chromium/layout_test_results/Webkit_Linux/results/layout-test-results/css3/images/cross-fade-background-size-actual.png in Skia.

Comment 1 Mike Reed 2012-01-18 06:31:45 PST

-webkit-cross-fade

Is that turning into a skia call, or is this implemented in chrome's compositor layer?

Comment 2 Stephen White 2012-01-18 07:24:05 PST

(In reply to comment #1)
> -webkit-cross-fade
> 
> Is that turning into a skia call, or is this implemented in chrome's compositor layer?

It looks like the code in question is in platform/graphics/CrossFadeGeneratedImage.cpp.  It makes some pretty ordinary GraphicsContext calls (which turn into skia calls).  My guess is perhaps some weird artifact of the resampling mode, as if it's ending up in "nearest" rather than "linear".