On Thu, Feb 27, 2003 at 06:58:42PM +0100, Michel D�nzer wrote:
> On Don, 2003-02-27 at 09:33, Sven Luther wrote:
> > On Thu, Feb 27, 2003 at 02:14:37AM +0100, Michel D�nzer wrote:
> > > On Mit, 2003-02-26 at 18:16, Alex Deucher wrote:
> > > > -- Sven Luther <[EMAIL PROTECTED]> wrote:
> > >
> > > [ video memory management ]
> > >
> > > > > How is it done right now ? Is a part of the onchip memory reserved
> > > > > for framebuffer and XAA, and another part free for 3D use ?
> > > >
> > > > Not sure. I'm not familiar with the memory manager either. I seem to
> > > > recall some drivers have the (compile time) option of allocating more
> > > > or less to 2D vs 3D. I believe it was the mga driver, and the issue
> > > > was not having enough memory for Xv cause 3D has reserved too much.
> > >
> > > Some drivers (tdfx and radeon at least) only reserve offscreen memory
> > > for 3D when it's actually used, the amount is still static though.
> >
> > Do they get it from the OS memory manager, or do they do another trick ?
>
> See RADEONDRITransitionTo{2,3}d() .
Ok, thanks.
They do use the OS memory manager.
Friendly,
Sven Luther
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