Mesa (master): radeonsi: fix centroid with VRS coarse shading

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Module: Mesa
Branch: master
Commit: dbf09c0c26dda7296322491c35fce02f3147dfa9
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=dbf09c0c26dda7296322491c35fce02f3147dfa9

Author: Marek Olšák <marek.olsak at amd.com>
Date:   Tue Jan 26 15:26:18 2021 -0500

radeonsi: fix centroid with VRS coarse shading

This has no effect on other shading. It should have been the default value.

Fixes: c3432ad8524 - radeonsi: add an option to enable 2x2 coarse shading for non-GUI elements

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer at amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8726>

---

 src/gallium/drivers/radeonsi/si_state.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index c7baed72e91..c36bb17ad27 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -1388,7 +1388,7 @@ static void si_emit_db_render_state(struct si_context *sctx)
       S_028010_DISABLE_ZMASK_EXPCLEAR_OPTIMIZATION(sctx->db_depth_disable_expclear) |
       S_028010_DISABLE_SMEM_EXPCLEAR_OPTIMIZATION(sctx->db_stencil_disable_expclear) |
       S_028010_DECOMPRESS_Z_ON_FLUSH(sctx->framebuffer.nr_samples >= 4) |
-      S_028010_CENTROID_COMPUTATION_MODE(sctx->chip_class >= GFX10_3 ? 2 : 0));
+      S_028010_CENTROID_COMPUTATION_MODE(sctx->chip_class >= GFX10_3 ? 1 : 0));
 
    db_shader_control = sctx->ps_db_shader_control;