From: Brian Paul <brianp@vmware.com>
Date: Fri, 15 Jan 2010 21:57:55 +0000 (-0700)
Subject: tgsi: fix detection of front-facing attribute
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f595e72337f4cdc2ec6b0378f747e31666e70d5c;p=mesa.git

tgsi: fix detection of front-facing attribute

This code was not updated when we added TGSI_SEMANTIC_FACE a while ago.
---

diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c
index f9c16f1b6cb..a4414d118a8 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c
@@ -101,12 +101,10 @@ tgsi_scan_shader(const struct tgsi_token *tokens,
                   if (src->SrcRegister.File == TGSI_FILE_INPUT) {
                      const int ind = src->SrcRegister.Index;
                      if (info->input_semantic_name[ind] == TGSI_SEMANTIC_FOG) {
-                        if (src->SrcRegister.SwizzleX == TGSI_SWIZZLE_X) {
-                           info->uses_fogcoord = TRUE;
-                        }
-                        else if (src->SrcRegister.SwizzleX == TGSI_SWIZZLE_Y) {
-                           info->uses_frontfacing = TRUE;
-                        }
+                        info->uses_fogcoord = TRUE;
+                     }
+                     else if (info->input_semantic_name[ind] == TGSI_SEMANTIC_FACE) {
+                        info->uses_frontfacing = TRUE;
                      }
                   }
                }