[Webkit-unassigned] [Bug 42300] Canvas: Don't add shadow rect to dirty region when shadow alpha is 0

Wed Jul 14 16:14:27 PDT 2010

https://bugs.webkit.org/show_bug.cgi?id=42300

Darin Adler <darin at apple.com> changed:

           What    |Removed                     |Added
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  Attachment #61578|review?                     |review+
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--- Comment #2 from Darin Adler <darin at apple.com>  2010-07-14 16:14:27 PST ---
(From update of attachment 61578)
It’s unfortunate we have to construct a Color just to check the alpha channel. That’s going to cost some actual instructions and CPU time. Maybe we should have more functions that operate directly on RGBA32 values.

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