Mesa (mesa_7_7_branch): tgsi: fix detection of front-facing attribute

Brian Paul brianp at kemper.freedesktop.org
Fri Jan 15 21:58:26 UTC 2010


Module: Mesa
Branch: mesa_7_7_branch
Commit: f595e72337f4cdc2ec6b0378f747e31666e70d5c
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f595e72337f4cdc2ec6b0378f747e31666e70d5c

Author: Brian Paul <brianp at vmware.com>
Date:   Fri Jan 15 14:57:55 2010 -0700

tgsi: fix detection of front-facing attribute

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

---

 src/gallium/auxiliary/tgsi/tgsi_scan.c |   10 ++++------
 1 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c
index f9c16f1..a4414d1 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;
                      }
                   }
                }




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