radeonsi: use 32_AR for alpha-to-coverage without a color buffer
authorMarek Olšák <marek.olsak@amd.com>
Sat, 16 Jan 2016 03:09:45 +0000 (04:09 +0100)
committerMarek Olšák <marek.olsak@amd.com>
Fri, 22 Jan 2016 14:02:40 +0000 (15:02 +0100)
commit933e3c4145d97e73000beaf1f96db2a70f209f26
tree62f58291121ea8cb907c82c3b5784f9f873cd009
parentf1f01588372a26b7c217fa1898eefea75290feed
radeonsi: use 32_AR for alpha-to-coverage without a color buffer

This avoids the fp16 packing instructions.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
src/gallium/drivers/radeonsi/si_state_shaders.c