DRI2 Protocol Spec Draft

Kristian Høgsberg krh at bitplanet.net
Wed Sep 10 11:16:22 PDT 2008

On Tue, Sep 9, 2008 at 1:34 PM, Michel Dänzer
<michel at tungstengraphics.com> wrote:
> On Tue, 2008-09-09 at 10:11 -0700, Keith Packard wrote:
>> On Tue, 2008-09-09 at 18:41 +0200, Michel Dänzer wrote:
>> > Generally, if DRI2CopyRegion seriously wants to be useful for
>> > synchronization purposes, it probably needs to provide at least the same
>> > functionality as the DRM vblank related ioctls.
>> Certainly the combination of DRI2CopyRegion and DRM should be able to
>> provide sufficient synchronization. The question is what portion of this
>> task belongs in the extension and what portion belongs in the DRM kernel
>> API.
> If the GLX implementation is to use DRI2CopyRegion for synchronization
> purposes, then the interface of the latter needs to be at least as
> expressive as the DRM synchronization interfaces currently used by the
> former.

Could you give a quick summary of what those are and where you think
DRI2CopyRegion falls short?


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