[Webkit-unassigned] [Bug 39123] Unneeded fillRect call in RenderBoxModelObject::paintFillLayerExtended

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=39123


Darin Adler <darin at apple.com> changed:

           What    |Removed                     |Added
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                 CC|                            |hyatt at apple.com,
                   |                            |mjs at apple.com




--- Comment #10 from Darin Adler <darin at apple.com>  2010-05-20 10:48:44 PST ---
(In reply to comment #9)
> This patch isn't avoiding doing a fillRect for a fully transparent color. It's checking to see if a later fillRect will fully obscure an earlier one, which I think is a fine optimization.

Sorry, I was totally confused. Now that I know what this is, I can make a different comment.

We have tried this optimization multiple times in the past and have never need able to actually squeeze a speed-up out of it. I’m excited that things are different this time, and also a little skeptical because of the previous attempts.

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