[Mesa-dev] [PATCH] intel: Don't advertise GLX_SWAP_COPY_OML

[Ian Romanick]

On 08/13/2012 08:43 AM, Eric Anholt wrote:
> Ian Romanick <idr at 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.