[Webkit-unassigned] [Bug 25417] Skia CompositeCopy should be mapped to kSrc_Mode not kSrcOver_Mode.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=25417


hamaji at google.com changed:

           What    |Removed                     |Added
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  Attachment #30207|                            |review?
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------- Comment #12 from hamaji at google.com  2009-05-11 16:11 PDT -------
(From update of attachment 30207)
Added test cases except for alpha=0 case. When alpha is zero, some graphic
engine does nothing for optimization but it's not correct behavior for some
composite operations such as copy.
I also updated the function which compares the value of RGB in layout test so
that this compares the actual colors users see (it compares [R*A, G*A, B*A]
instead of [R, G, B]). I did this because Skia's outputs have some errors due
to optimization for the cases alpha is small.


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