Experimental options
Alex Deucher
alexdeucher at gmail.com
Mon Dec 13 20:40:32 PST 2004
On Mon, 13 Dec 2004 23:13:17 -0500 (EST), Vladimir Dergachev
<volodya at mindspring.com> 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()
>
see radeon_driver.c::RADEONScreenInit() lines 4856 to 4924.
Alex
> If they are made than it is likely in generic DRI code, in which case this
> should be worked around there first.
>
> best
>
> Vladimir Dergachev
>
>
>
> >
> >
> > --
> > Earthling Michel Dänzer | Debian (powerpc), X and DRI developer
> > Libre software enthusiast | http://svcs.affero.net/rm.php?r=daenzer
> >
>
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