[Libva] [PATCH] va/x11: Require synchronisation to vblank with DRI2SwapBuffers

[Chris Wilson]

On Thu, Dec 24, 2015 at 03:48:07PM +0000, Chris Wilson wrote:
> On Thu, Dec 24, 2015 at 03:42:37PM +0000, Chris Wilson wrote:
> > By passing divisor=0, we imply we do not care about synchronisation of
> > this request to the vertical refresh - the spec says that if we miss the
> > target frame, the swap will be presented as quickly as possible and may
> > forgo waiting until the next vblank. By using divisor=1, we request that
> > the swap be presented upon the vertical refresh immediately following
> > recipe, enforcing the synchronisation to vblank and avoiding tearing.
>   ^receipt

Ping.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre