gallium: add pipe cap for scissored clears and pass scissor state to clear() hook

this adds a new pipe cap that drivers can support which enables passing buffer
clears with scissor test enabled through to be handled by the driver instead
of having mesa draw a quad

also adjust all existing clear() hooks to have the new parameter

Reviewed-by: Marek Olšák <[email protected]>
Reviewed-by: Vasily Khoruzhick <[email protected]>
Reviewed-by: Kristian H. Kristensen <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4310>

0 files changed, 0 insertions, 0 deletions