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

From: Lee Revell (rlrevell_at_joe-job.com)
Date: 01/29/05

  • Next message: Andrew Morton: "2.6.11-rc2-mm2" 
    To: Parag Warudkar <kernel-stuff@comcast.net>
Date:	Sat, 29 Jan 2005 16:05:14 -0500

    On Sat, 2005-01-29 at 15:57 -0500, Parag Warudkar wrote:
    > Dr. David Alan Gilbert wrote:
    >
    > >* Lee Revell (rlrevell@joe-job.com) 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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