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-rw-r--r--src/gallium/drivers/radeonsi/si_state_shaders.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c
index 11e73098253..13066ff3c7d 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -1406,6 +1406,9 @@ static unsigned si_get_ps_input_cntl(struct si_context *sctx,
* Don't set any other bits.
* (FLAT_SHADE=1 completely changes behavior) */
ps_input_cntl = S_028644_OFFSET(0x20);
+ /* D3D 9 behaviour. GL is undefined */
+ if (name == TGSI_SEMANTIC_COLOR && index == 0)
+ ps_input_cntl |= S_028644_DEFAULT_VAL(3);
}
return ps_input_cntl;
}