[Xorg] Implementing "Xv" extension on DDX which don'tsupportitin hardware...

[John Dennis]

> > Typically its the background pixel color of the Xv client application.
> 
> No, I mean: Which "side" paints the color key ? The Xv implementation in
> the Xserver or the X client ?

As I said, the client. This is perhaps unfortunate, clearly it is the
ddx Xv implementation which has the knowledge about color keying, but
this is not the design of X where windows have backgrounds and those
backgrounds are automatically repainted by non Xv aware portions of the
server.