The initial commit adding X-Video acceleration to this Gallium3D state tracker can be found on the Mesa master repository. This work will appear in Mesa 7.7, but of course most users are waiting on proper Gallium3D hardware drivers to arrive, not to mention that X-Video and EXA support is already implemented in most of the current X.Org DDX drivers. It, of course, will become more interesting once VDPAU and XvMC are supported by a Gallium3D state tracker.
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