[webkit-reviews] review granted: [Bug 79659] Optimize Canvas fill and drawImage with SourceIn, DestinationIn, SourceOut, and DestinationAtop using transparencyLayer. : [Attachment 229271] Patch

[bugzilla-daemon at webkit.org]

Darin Adler <darin at apple.com> has granted Dirk Schulze <krit at webkit.org>'s
request for review:
Bug 79659: Optimize Canvas fill and drawImage with SourceIn, DestinationIn,
SourceOut, and DestinationAtop using transparencyLayer.
https://bugs.webkit.org/show_bug.cgi?id=79659

Attachment 229271: Patch
https://bugs.webkit.org/attachment.cgi?id=229271&action=review

------- Additional Comments from Darin Adler <darin at apple.com>
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?