[Webkit-unassigned] [Bug 79659] Optimize Canvas fill and drawImage with SourceIn, DestinationIn, SourceOut, and DestinationAtop using transparencyLayer.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=79659





--- Comment #26 from Dirk Schulze <krit at webkit.org>  2014-04-14 08:40:46 PST ---
(In reply to comment #25)
> (From update of attachment 229271 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=229271&action=review
> 
> > Source/WebCore/ChangeLog:18
> > +        An inline function will create a transparency layer for CG. Cairo graphics
> > +        does not composite correctly when a transparency layer gets created. 
> > +        The inline function is just a NOOP for Cairo.
> 
> Why is this OK for Cairo? Does this behave correctly on Cairo?

Yes, I build it with Cairo as well. The existing tests pass now which were skipped before.

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