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radeonsi: use 32_AR for alpha-to-coverage without a color buffer

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This avoids the fp16 packing instructions.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Marek Olšák 2016-01-16 04:09:45 +01:00
parent f1f0158837
commit 933e3c4145
1 changed files with 1 additions and 1 deletions
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2
src/gallium/drivers/radeonsi/si_state_shaders.c
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@ -624,7 +624,7 @@ static inline void si_shader_selector_key(struct pipe_context *ctx,
*/
if (!(key->ps.spi_shader_col_format & 0xf) &&
blend && blend->alpha_to_coverage)
key->ps.spi_shader_col_format |= V_028710_SPI_SHADER_FP16_ABGR;
key->ps.spi_shader_col_format |= V_028710_SPI_SHADER_32_AR;
if (rs) {
bool is_poly = (sctx->current_rast_prim >= PIPE_PRIM_TRIANGLES &&