[Webkit-unassigned] [Bug 86410] [texmap][GStreamer] Composited Video support

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=86410





--- Comment #51 from Zhao, Halley <halley.zhao at intel.com>  2012-10-26 05:15:43 PST ---
> I'm sure it's called for each _screen visible_ frame. Every time you want to re-render the entire WebKit scene onto the screen.
> 
> I don't see a way around it though, it's not specific to video frames, isn't it? I mean, as the video players other content needs updating, too (although only every second).
> 
> Can you elaborate how your ideal rendering pass would look like?

eventually, we just need one texture for each Graphics Layer.
so 3D pipeline (glClear/drawTexture/swapBuffer) isn't necessary when we have such texture alerady. for example: we can use bindSurface only with video texture as input. any gap for it?

if we reach the above solution, it means TextuerMapper is heavy for us, we can create a simple class for it.

comparing to controls, video layer is larger and higher update frequency, it is really expensive to do glClear and copy the texture.

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