[Webkit-unassigned] [Bug 40147] Failing Philip's Canvas test: toDataURL.jpeg.alpha

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=40147


noel gordon <noel.gordon at gmail.com> changed:

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                 CC|                            |noel.gordon at gmail.com




--- Comment #1 from noel gordon <noel.gordon at gmail.com>  2010-11-29 20:26:06 PST ---
Sought clarification on the this section of the <canvas> spec, bug filed.
  http://www.w3.org/Bugs/Public/show_bug.cgi?id=11431

issue #1 Safari and Chrome-Mac don't composite JPEG toDataURL onto black.
 Needs a fix near http://trac.webkit.org/browser/trunk/WebCore/platform/graphics/cg/ImageBufferCG.cpp?rev=70143#L354
 to specify the background color via dictionary key kCGImageDestinationBackgroundColor 

issue #2 philip test toDataURL.jpeg.alpha
 Is this test correct?  Should the alpha channel be ignored (philip test), or should the unpremultiplied RGB values
 be used instead (FireFox, Safari).  http://www.w3.org/Bugs/Public/show_bug.cgi?id=11431 to resolve.

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