From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Wed, 17 Sep 2008 22:49:26 +0000 (-0600)
Subject: gallium: fix fog vs. pointcoord attribute handling in mesa->TGSI conversion
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4ee8d1ad679ea8540e91616933a880cdb3836a19;p=mesa.git

gallium: fix fog vs. pointcoord attribute handling in mesa->TGSI conversion
---

diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c
index 936a6e32ea1..b2abf0286e7 100644
--- a/src/mesa/state_tracker/st_program.c
+++ b/src/mesa/state_tracker/st_program.c
@@ -409,7 +409,10 @@ st_translate_fragment_program(struct st_context *st,
             interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
             break;
          case FRAG_ATTRIB_FOGC:
-            stfp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
+            if (stfp->Base.UsesPointCoord)
+               stfp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+            else
+               stfp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG;
             stfp->input_semantic_index[slot] = 0;
             interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
             break;