From: Marek Olšák <marek.ol...@amd.com>
Vulkan always sets this. It only affects in-place Z decompression.
This is recommended for performance, but what app uses MSAA depth
texturing?
---
src/gallium/drivers/radeonsi/si_state.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/gallium/drivers/radeonsi/si_state.c
b/src/gallium/drivers/radeonsi/si_state.c
index 81a4341..c6e10b7 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -1104,7 +1104,8 @@ static void si_emit_db_render_state(struct si_context
*sctx, struct r600_atom *s
/* DB_RENDER_OVERRIDE2 */
radeon_set_context_reg(cs, R_028010_DB_RENDER_OVERRIDE2,
S_028010_DISABLE_ZMASK_EXPCLEAR_OPTIMIZATION(sctx->db_depth_disable_expclear) |
-
S_028010_DISABLE_SMEM_EXPCLEAR_OPTIMIZATION(sctx->db_stencil_disable_expclear));
+
S_028010_DISABLE_SMEM_EXPCLEAR_OPTIMIZATION(sctx->db_stencil_disable_expclear) |
+ S_028010_DECOMPRESS_Z_ON_FLUSH(sctx->framebuffer.nr_samples >=
4));
db_shader_control =
S_02880C_ALPHA_TO_MASK_DISABLE(sctx->framebuffer.cb0_is_integer) |
sctx->ps_db_shader_control;
--
2.7.4
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