From: Michel Dänzer <michel.daenzer@amd.com>
Date: Wed, 13 Feb 2013 15:07:15 +0000 (+0100)
Subject: radeonsi: Don't match TGSI_SEMANTIC_POSITION fs inputs to vs outputs
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b63b3012c91cceafc59c0f727b66ff75f09c98d2;p=mesa.git

radeonsi: Don't match TGSI_SEMANTIC_POSITION fs inputs to vs outputs
---

diff --git a/src/gallium/drivers/radeonsi/si_state_draw.c b/src/gallium/drivers/radeonsi/si_state_draw.c
index 61dea74ac12..f8460b0f823 100644
--- a/src/gallium/drivers/radeonsi/si_state_draw.c
+++ b/src/gallium/drivers/radeonsi/si_state_draw.c
@@ -319,11 +319,14 @@ static void si_update_spi_map(struct r600_context *rctx)
 		unsigned name = ps->input[i].name;
 		unsigned param_offset = ps->input[i].param_offset;
 
+		if (name == TGSI_SEMANTIC_POSITION)
+			/* Read from preloaded VGPRs, not parameters */
+			continue;
+
 bcolor:
 		tmp = 0;
 
-		if (name == TGSI_SEMANTIC_POSITION ||
-		    ps->input[i].interpolate == TGSI_INTERPOLATE_CONSTANT ||
+		if (ps->input[i].interpolate == TGSI_INTERPOLATE_CONSTANT ||
 		    (ps->input[i].interpolate == TGSI_INTERPOLATE_COLOR &&
 		     rctx->ps_shader->current->key.flatshade)) {
 			tmp |= S_028644_FLAT_SHADE(1);