From: Maciej Cencora <m.cencora@gmail.com>
Date: Sun, 27 Sep 2009 20:28:46 +0000 (+0200)
Subject: r300g: don't force vertex position for HW TCL path
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=98f6bea1685957fe9261e50f8a56f7dcb34f9b38;p=mesa.git

r300g: don't force vertex position for HW TCL path

It could be generated by vertex shader.
---

diff --git a/src/gallium/drivers/r300/r300_state_derived.c b/src/gallium/drivers/r300/r300_state_derived.c
index 083861a0712..ed5dc1b9ff0 100644
--- a/src/gallium/drivers/r300/r300_state_derived.c
+++ b/src/gallium/drivers/r300/r300_state_derived.c
@@ -128,7 +128,9 @@ static void r300_vs_tab_routes(struct r300_context* r300,
 
     vinfo->hwfmt[0] = 0x5555; /* XXX this is classic Mesa bonghits */
 
-    if (!pos) {
+    /* We need to add vertex position attribute only for SW TCL case,
+     * for HW TCL case it could be generated by vertex shader */
+    if (!pos && !r300screen->caps->has_tcl) {
         debug_printf("r300: Forcing vertex position attribute emit...\n");
         /* Make room for the position attribute
          * at the beginning of the tab. */