[Webkit-unassigned] [Bug 76720] [chromium] Refactor video drawing to be more data driven

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=76720





--- Comment #18 from Tim Dresser <tdresser at chromium.org>  2012-01-27 06:35:34 PST ---
(In reply to comment #17)
> No, these are all draw-only state and they should live on the one quad that the video layer produces.

I was under the impression that each frame, the CCVideoLayerImpl produces a brand new quad, but the ManagedTexture objects are used in multiple frames.

Currently, the ManagedTexture objects are allocated in CCVideoLayerImpl::reserveTextures. A new ManagedTexture is only created if the layer doesn't have a texture for a specific plane. If my understanding is correct, that means that ManagedTexture objects will be reused for multiple frames. If we switch to calling reserveTextures in the quad, without a backpointer to the layer, then we'll only be able to use each ManagedTexture for one frame.

Does that sound correct?

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