[Libva] [PATCH][G45] Add RGBA subpicture formats (take 2)

[Gwenole Beauchesne]

Hi,

On Tue, 3 Nov 2009, Gwenole Beauchesne wrote:

> This patch tries to add RGBA subpicture format with 
> I965_SURFACEFORMAT_R8G8B8A8_UNORM. However, this is not fully working as this 
> looks like B&W only. What am I missing?

Actually, the shader render program turned out to be wrong. It was 
sampling YCbCr instead of ARGB pixels. I finally fixed that by reusing the 
exa_wm_src_sample_argb shader program.

Here is a new patch attached that also brings BGRA surfaces.

Regards,
Gwenole.
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