etnaviv: fix alpha test on GC3000
Store ref_value in PE_STENCIL_CONFIG_EXT as done by blob.
Fixes following piglits:
spec@ext_framebuffer_object@fbo-alphatest-formats
spec@ext_packed_float@fbo-alphatest-formats
spec@ext_texture_srgb@fbo-alphatest-formats
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4028>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4028>
projects / mesa.git / commit