On 08/14/2012 11:09 AM, Ian Romanick wrote: > On 08/13/2012 08:43 AM, Eric Anholt wrote: >> Ian Romanick <i...@freedesktop.org> writes: >>> The tail should not wag the dog. If the application requests such a >>> config, we should not page flip. There are cases where the copy is >>> preferable because it leaves the backbuffer intact. >> >> Well, that would require extra work in dri2 to use the older copyregion >> interface if the bit is set, and then you lose correct vblank syncing. >> Unless you're planning on new dri2 protocol. >> >> Or we could just remove this interface that, as far as I know, no app >> uses. > > I'm pretty sure both Firefox and Blender want this for their UI elements. > Firefox might not use it anymore, but I'm sure Blender does. Blender also > won't > care about vsync.
I just discussed this with GL developers from Firefox (karl in #g...@irc.mozilla.org) and Blender (Psy-Fi in #blendercoders@freenode). They confirmed that neither project uses or has any intention to use GLX_SWAP_COPY_OML. They also gently complained that they wished GL drivers would stop advertising broken features. Eric, Ian, now that Ian's issue is resolved, I'm now waiting on one of your r-b to commit this patch. -Chad _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
