radv: Fix 3d blits.

- the offsets are inclusive-exclusive so the +1 was wrong
- Since the GPU doesn't do the interpolation on depth (as we render
  per layer), we have to add an offset for the pixel center.

CC: mesa-stable
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3073
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6458>
1 file changed