etnaviv: rework ZSA into a derived state
The ZSA state is not fully self contained, as other states (mostly
shader using discard or writing depth information) have an influence
on whether we can use early Z test/write.
Rework the ZSA state into a derived state that gets updated whenever
a new ZSA or SHADER state is bound. This way we can automatically
enable/disable early Z as needed.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7396>
6 files changed