DRI (was Re: OpenOffice crashes due to incorrect accesspermissions on /dev/dri/card*)

[Lee Revell]

On Sat, 2005-01-29 at 15:57 -0500, Parag Warudkar wrote:
> Dr. David Alan Gilbert wrote:
> 
> >* Lee Revell (rlrevell@xxxxxxxxxxx) wrote:
> >  
> >
> >>Stupid question: what the heck does OO use DRI for?  I googled and came
> >>up empty.
> >>    
> >>
> >
> >It does pointless 3D objects in its drawing package.
> >  
> >
> Another stupid question :)
> Does it mean DRI is only used for doing 3D? How about normal, 2D stuff? 
> I thought X uses DRI for both 2D  and 3D if it is available...
> 

No, XAA is normally used for 2D acceleration.  This is hardware
accelerated but doesn't use DRI, X does 2D accel by talking directly to
the hardware without the kernel's involvement.

This is an area where the proprietary guys are a little ahead but there
are some interesting developments like the Xgl server.

Lee



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