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[Michel Dänzer]

On Mon, 2004-12-13 at 23:13 -0500, Vladimir Dergachev wrote:
> >>>> well, the drm is only used if 3d is enabled.  but if you don't have
> >>>> enough ram for 3d or you don't want to use the dri, the driver falls
> >>>> back to MMIO.  It'd be nice to use the drm for 2d all the time
> >>>> assuming the drm is available for your platform.
> >>>
> >>> I admit I don't know the dri code that well, but it seemed to me that
> >>> depth buffer (for instance..) was allocated dynamically in a function
> >>> that allocates context, right ?
> >>
> >> no, the back and depth buffers are allocated statically when the server starts.
> >
> > No, they aren't. Obviously though, 3D acceleration isn't enabled if they
> > can't fit into the available memory.
> 
> Well, I just don't see any checks for buffer size in
> ati/radeon_dri.c::RADEONDRIScreenInit()

It's in RADEONScreenInit() in radeon_driver.c. Look for the dreaded
'Static buffer allocation failed'.


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