xf86-video-ati page flipping fixes

[Ville Syrjälä]

On Thu, May 05, 2011 at 11:46:45AM +0200, Michel Dänzer wrote:
> On Mit, 2011-05-04 at 23:51 +0300, Ville Syrjala wrote:
> > I came to the conclusion that the xserver DRI2 invalidate patches that
> > have been discussed aren't really fixing the problem. I suppose they may
> > make the problem slightly less likely to happen, but at least for me that
> > likelyhood is still very high. The whole mess looks like a simple driver
> > bug to me.
> 
> I think the xserver patches are still necessary, otherwise how are the
> cached DRI2 pPriv->buffers updated for other windows sharing the same
> pixmap? 

As the real front buffers are not handed out to clients, there isn't
that much reason to update them. Making sure the fake front buffer
contain a more recent snapshot of the real front would be one reason
though.

-- 
Ville Syrjälä
syrjala at sci.fi
http://www.sci.fi/~syrjala/