[Webkit-unassigned] [Bug 72452] [Chromium] Avoid clear and color mask operations for root layers

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=72452


Adrienne Walker <enne at google.com> changed:

           What    |Removed                     |Added
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                 CC|                            |enne at google.com




--- Comment #6 from Adrienne Walker <enne at google.com>  2011-11-16 11:25:53 PST ---
(In reply to comment #3)
> This seems like a lot of shaders.  Did you consider controlling the alpha behavior with a uniform instead of a new shader?

With the opaque shaders, we're just trying to avoid having to turn off alpha writes for the root layer, right? And, we only need that because we have one platform that trashes the alpha channel for text.  And, that one platform doesn't really have this performance penalty.  So, why don't we just only turn off alpha writes for that one platform?

CCTiledLayerImpl::draw is getting ridiculous.

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