[PATCH] complete (I hope!) i830 EXA support

[Keith Packard]

On Sun, 2005-09-11 at 19:27 -0700, Jesse Barnes wrote:

> I probably am, but haven't looked at any of the Xv related code, so I 
> can only guess at this point.  Sounds like it's expected behavior 
> though, I won't worry about it.

Most drivers use overlays by default because they do a whole lot better
job displaying video than the texture engine can manage. However, the
result is that video can't be translucent.

The kdrive radeon server uses the texture engine, so you can have
translucent video, but it otherwise kinda sucks -- you get nifty
diagonal weirdness as the video update isn't synced to vretrace and the
texture engine paints only triangles.

A perfect server would use the overlay when possible and switch to the
texture engine when necessary.

-keith

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