Dri2 buffer format

Jerome Glisse j.glisse at gmail.com
Mon Nov 8 09:53:56 PST 2010

On Mon, Nov 8, 2010 at 10:52 AM, Russell Shaw <rjshaw at netspace.net.au> wrote:
> Hi,
> How should the "format" of a DRI2 buffer be determined?
> http://www.x.org/releases/current/doc/dri2proto/dri2proto.txt
> DRI2ATTACH_FORMAT { attachment: CARD32
>            format:     CARD32 }
>    The DRI2ATTACH_FORMAT describes an attachment and the associated
>    format.  'attachment' describes the attachment point for the buffer,
>    'format' describes an opaque, device-dependent format for the buffer.

As the spec says, it's opaque and only the driver understand it, intel,
radeon, nouveau all use different things i think. DRI2 is meant to be
use btw different driver of same hw which should all understand each


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