Re: gtk performance testing [was Re: GNOME 2.11/2.12 targeting GTK+ 2.8 (ie cairo based)]



On Wed, 2005-06-15 at 11:16 +0100, Rob Taylor wrote:
> On Fri, 2005-06-10 at 09:33 -0400, Owen Taylor wrote:
> > On Fri, 2005-06-10 at 15:12 +0200, Jeroen Zwartepoorte wrote:
> > > Since everybody is talking about how glitz will eventually speedup
> > > drawing operations by using hardware accelerated OpenGL, i built it
> > > and then rebuilt cairo so cairo will detect glitz and compile with
> > > support for it.
> > > 
> > > How does glitz further integrate into the desktop stack? Can i make
> > > gtk+ use glitz for drawing widgets? If so, how?
> > 
> > The way glitz integrates in is on the server side:
> > 
> >  GTK+ => Cairo --- <RENDER> ---> X server => glitz => OpenGL
> > 
> > This will give the same basic performance benefits as having Cairo
> > use glitz directly, but with many less complications. Currently,
> > we don't foresee having GTK+ render via glitz as a very interesting
> > way to go for the desktop.
> > 
> > Note that the performance slowdowns people have been seeing for
> > GtkTextView likely have not much to do with rendering and everything
> > to do with text measurement.
> 
> You'll have to excude me for not having followed much cairo/X work for a
> while, but does that ' --- <RENDER> ---' imply that cairo is rendering
> lots of traps using the RENDER extension?

Yes.
						Owen

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