[Mesa-dev] gallium: blitters and scissors

[Dave Airlie]

On Wed, Oct 13, 2010 at 12:07 PM, Dave Airlie <airlied at gmail.com> wrote:
> I've noticed that none of the blitters use scissor state, and wondered
> if there was a reason for this.
>
> It looks like drivers are expected to setup scissor state in the
> framebuffer setup and in the set scissor state, but with r600g due to
> the underlying state tracking it can end up doing the wrong thing.
>
> The 3 patches add CSO cache + u_blit + u_blitter scissor usage.
>
> Just wondering if I'm violating some rules of the gallium interface or not.

I realised this was a quite deep hole I started digging in mesa/st,
any advice on whether cleaning it up is a good idea?

Dave.
Dave.