[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





--- Comment #3 from James Robinson <jamesr at chromium.org>  2011-11-15 20:58:46 PST ---
This seems like a lot of shaders.  Did you consider controlling the alpha behavior with a uniform instead of a new shader?

For non-composited content we don't need any opaque AA variants, since we don't draw the non-composited content tiles with the AA shaders.  I'm not sure AA with a 1.0 alpha value makes too much sense anyway.

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