Xgl and direct rendering

[Michel Dänzer]

On Wed, 2006-03-01 at 18:39 +0100, Matthias Hopf wrote:
> On Mar 01, 06 17:51:29 +0100, Michel Dänzer wrote:
> > > > Sure, but a mechanism to have the fullscreen front buffer be scanned out
> > > > directly by the display hardware would still be nice.
> > > 
> > > Right... But that isn't easily possible, as a front buffer suddenly
> > > might become transparent, or moved to the background, and then we would
> > > have to switch to an off-screen buffer, which is not doable right now.
> > 
> > It could always be the same buffer. In that case, you'd just have to
> > switch back to scanning out the root/compositor window buffer and
> > compositing the desktop.
> 
> I currently don't see how this can be done with OpenGL.

Take off those OpenGL glasses. ;P I'm not thinking in terms of specific
APIs here, just trying to identify interesting use cases. I'm sure we
can fix the APIs as necessary. :)


-- 
Earthling Michel Dänzer      |     Debian (powerpc), X and DRI developer
Libre software enthusiast    |   http://svcs.affero.net/rm.php?r=daenzer