Keith Whitwell wrote:
> 
> > > The private-backbuffer case really has
> > > to be the backbuffer as treating the frontbuffer as private would break the
> > > blitting technique that we use to keep the (real) backbuffer uptodate...  To
> > > have a private backbuffer & ignore cliprects, it really does have to be the
> > > backbuffer.
> >
> > I thought we only supported private back buffers when we had a single 3D
> > window, so wouldn't back buffer functionality be excluded when we
> > support page flipping?
> 
> Yes, but we mentioned early on that when there are many cliprects it might be
> better to revert to swapping and a private backbuffer...

Doh!  Of course.

Is the blitting technique flexible...i.e. can the new backbuffer become
the new "real" backbuffer even though it may have started out as the
front buffer?

I think I may have already seen a bug related to this.  I ran tuxracer,
but the desktop failed to redraw after I exited.  xrefresh didn't fix
it, and running again didn't reproduce it.  Maybe I should try a few
more times.  If the server is confused about which is back and which is
front, I should be able to reproduce at least 50% of the time :-)

--                             /\
         Jens Owen            /  \/\ _    
  [EMAIL PROTECTED]  /    \ \ \   Steamboat Springs, Colorado

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