From fa63d6d32c93a5d8cd88c0c7d4a8ac4c1c1c1a9d Mon Sep 17 00:00:00 2001
From: Brian <brian.paul@tungstengraphics.com>
Date: Thu, 8 Nov 2007 11:39:42 -0700
Subject: [PATCH] check for divide by W flag when translating TGSI_OPCODE_TEX
 (fixes projected textures)

---
 src/mesa/pipe/i915simple/i915_fpc_translate.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/mesa/pipe/i915simple/i915_fpc_translate.c b/src/mesa/pipe/i915simple/i915_fpc_translate.c
index 7838031c17b..b867b87e745 100644
--- a/src/mesa/pipe/i915simple/i915_fpc_translate.c
+++ b/src/mesa/pipe/i915simple/i915_fpc_translate.c
@@ -831,7 +831,13 @@ i915_translate_instruction(struct i915_fp_compile *p,
       break;
 
    case TGSI_OPCODE_TEX:
-      emit_tex(p, inst, T0_TEXLD);
+      if (inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide
+          == TGSI_EXTSWIZZLE_W) {
+         emit_tex(p, inst, T0_TEXLDP);
+      }
+      else {
+         emit_tex(p, inst, T0_TEXLD);
+      }
       break;
 
    case TGSI_OPCODE_TXB:
-- 
2.30.2