From 647213804582a6b6cfd4fbfeb1c9874ef53307f3 Mon Sep 17 00:00:00 2001
From: Ian Romanick <idr@us.ibm.com>
Date: Thu, 13 Mar 2008 11:19:50 -0700
Subject: [PATCH] Replicate TXP changes in the SPU version of TGSI exec

Replicate changes from commit ba75e82b6ebaf88dd2e4a8f764b2d296d715bf8a
in spu_exec.c
---
 src/gallium/drivers/cell/spu/spu_exec.c | 45 ++++++++++-----------------------
 1 file changed, 14 insertions(+), 31 deletions(-)

diff --git a/src/gallium/drivers/cell/spu/spu_exec.c b/src/gallium/drivers/cell/spu/spu_exec.c
index 1560c0f..061fbeb 100644
--- a/src/gallium/drivers/cell/spu/spu_exec.c
+++ b/src/gallium/drivers/cell/spu/spu_exec.c
@@ -672,7 +672,7 @@ fetch_texel( struct spu_sampler *sampler,
 static void
 exec_tex(struct spu_exec_machine *mach,
          const struct tgsi_full_instruction *inst,
-         boolean biasLod)
+         boolean biasLod, boolean projected)
 {
    const uint unit = inst->FullSrcRegisters[1].SrcRegister.Index;
    union spu_exec_channel r[8];
@@ -686,17 +686,9 @@ exec_tex(struct spu_exec_machine *mach,
 
       FETCH(&r[0], 0, CHAN_X);
 
-      switch (inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide) {
-      case TGSI_EXTSWIZZLE_W:
+      if (projected) {
          FETCH(&r[1], 0, CHAN_W);
          r[0].q = micro_div(r[0].q, r[1].q);
-         break;
-
-      case TGSI_EXTSWIZZLE_ONE:
-         break;
-
-      default:
-         assert (0);
       }
 
       if (biasLod) {
@@ -718,19 +710,11 @@ exec_tex(struct spu_exec_machine *mach,
       FETCH(&r[1], 0, CHAN_Y);
       FETCH(&r[2], 0, CHAN_Z);
 
-      switch (inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide) {
-      case TGSI_EXTSWIZZLE_W:
+      if (projected) {
          FETCH(&r[3], 0, CHAN_W);
          r[0].q = micro_div(r[0].q, r[3].q);
          r[1].q = micro_div(r[1].q, r[3].q);
          r[2].q = micro_div(r[2].q, r[3].q);
-         break;
-
-      case TGSI_EXTSWIZZLE_ONE:
-         break;
-
-      default:
-         assert (0);
       }
 
       if (biasLod) {
@@ -752,19 +736,11 @@ exec_tex(struct spu_exec_machine *mach,
       FETCH(&r[1], 0, CHAN_Y);
       FETCH(&r[2], 0, CHAN_Z);
 
-      switch (inst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide) {
-      case TGSI_EXTSWIZZLE_W:
+      if (projected) {
          FETCH(&r[3], 0, CHAN_W);
          r[0].q = micro_div(r[0].q, r[3].q);
          r[1].q = micro_div(r[1].q, r[3].q);
          r[2].q = micro_div(r[2].q, r[3].q);
-         break;
-
-      case TGSI_EXTSWIZZLE_ONE:
-         break;
-
-      default:
-         assert (0);
       }
 
       if (biasLod) {
@@ -1450,14 +1426,14 @@ exec_instruction(
       /* simple texture lookup */
       /* src[0] = texcoord */
       /* src[1] = sampler unit */
-      exec_tex(mach, inst, FALSE);
+      exec_tex(mach, inst, FALSE, FALSE);
       break;
 
    case TGSI_OPCODE_TXB:
       /* Texture lookup with lod bias */
       /* src[0] = texcoord (src[0].w = load bias) */
       /* src[1] = sampler unit */
-      exec_tex(mach, inst, TRUE);
+      exec_tex(mach, inst, TRUE, FALSE);
       break;
 
    case TGSI_OPCODE_TXD:
@@ -1473,7 +1449,14 @@ exec_instruction(
       /* Texture lookup with explit LOD */
       /* src[0] = texcoord (src[0].w = load bias) */
       /* src[1] = sampler unit */
-      exec_tex(mach, inst, TRUE);
+      exec_tex(mach, inst, TRUE, FALSE);
+      break;
+
+   case TGSI_OPCODE_TXP:
+      /* Texture lookup with projection
+      /* src[0] = texcoord (src[0].w = projection) */
+      /* src[1] = sampler unit */
+      exec_tex(mach, inst, TRUE, TRUE);
       break;
 
    case TGSI_OPCODE_UP2H:
-- 
2.7.4