Mesa (master): rav: use 32_AR instead of 32_ABGR when alpha coverage is required

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Module: Mesa
Branch: master
Commit: 9e787904d0a5c0dfde509a03f31f7a0c6f2993c3
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9e787904d0a5c0dfde509a03f31f7a0c6f2993c3

Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date:   Fri Mar  1 18:28:02 2019 +0100

rav: use 32_AR instead of 32_ABGR when alpha coverage is required

This export format is faster. Seems to improve performance in
Wreckfest.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>

---

 src/amd/vulkan/radv_pipeline.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c
index 09363af37e7..55dbe0620a6 100644
--- a/src/amd/vulkan/radv_pipeline.c
+++ b/src/amd/vulkan/radv_pipeline.c
@@ -529,7 +529,7 @@ radv_pipeline_compute_spi_color_formats(struct radv_pipeline *pipeline,
 		 * alpha channel of MRT0 when alpha coverage is enabled because
 		 * the depth attachment needs it.
 		 */
-		col_format |= V_028714_SPI_SHADER_32_ABGR;
+		col_format |= V_028714_SPI_SHADER_32_AR;
 	}
 
 	/* If the i-th target format is set, all previous target formats must