On Wed, 2003-07-30 at 18:26, Ian Romanick wrote:
[...] we don't want the R200 driver to expose GLX_MESA_swap_control if there's no vblank interrupt available. Since it can't implement the functionality, we don't want to advertise it.
It could poll for vertical blank...
I thought about that. The problem is that the swap_control extensions say "only swap after at least N refreshes have happened." Without interrupts, how do we know how many refreshes have happened between any two points of time out side the poll-loop? If there's a way, then we can fall-back to that.
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