From a3024caff1c790cf9f24476926aa62198f1e7b53 Mon Sep 17 00:00:00 2001
From: "Xiang, Haihao" <haihao.xiang@intel.com>
Date: Tue, 5 Aug 2008 10:18:56 +0800
Subject: [PATCH] i965: Use program->SamplerUnits[] to get the appropriate
 texture unit.

inst->TexSrcUnit is used as an index into program->SamplerUnits[] since
the commit ade508312c701ce89d3c2cd717994dbbabb4f207, and program->SamplerUnits
is a sampler-to-texture-unit mapping.
---
 src/mesa/drivers/dri/i965/brw_wm_fp.c   | 11 ++++++-----
 src/mesa/drivers/dri/i965/brw_wm_glsl.c | 14 +++++++++-----
 2 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_wm_fp.c b/src/mesa/drivers/dri/i965/brw_wm_fp.c
index ef90260e2a0..61805ec0809 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_fp.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_fp.c
@@ -562,6 +562,7 @@ static void precalc_tex( struct brw_wm_compile *c,
 {
    struct prog_src_register coord;
    struct prog_dst_register tmpcoord;
+   GLuint unit = c->fp->program.Base.SamplerUnits[inst->TexSrcUnit];
 
    if (inst->TexSrcTarget == TEXTURE_CUBE_INDEX) {
        struct prog_instruction *out;
@@ -618,7 +619,7 @@ static void precalc_tex( struct brw_wm_compile *c,
 	 search_or_add_param5( c, 
 			       STATE_INTERNAL, 
 			       STATE_TEXRECT_SCALE,
-			       inst->TexSrcUnit,
+			       unit,
 			       0,0 );
 
       tmpcoord = get_temp(c);
@@ -644,19 +645,19 @@ static void precalc_tex( struct brw_wm_compile *c,
     * conversion requires allocating a temporary variable which we
     * don't have the facility to do that late in the compilation.
     */
-   if (!(c->key.yuvtex_mask & (1<<inst->TexSrcUnit))) {
+   if (!(c->key.yuvtex_mask & (1<<unit))) {
       emit_op(c, 
 	      OPCODE_TEX,
 	      inst->DstReg,
 	      inst->SaturateMode,
-	      inst->TexSrcUnit,
+	      unit,
 	      inst->TexSrcTarget,
 	      coord,
 	      src_undef(),
 	      src_undef());
    }
    else {
-       GLboolean  swap_uv = c->key.yuvtex_swap_mask & (1<<inst->TexSrcUnit);
+       GLboolean  swap_uv = c->key.yuvtex_swap_mask & (1<<unit);
 
       /* 
 	 CONST C0 = { -.5, -.0625,  -.5, 1.164 }
@@ -682,7 +683,7 @@ static void precalc_tex( struct brw_wm_compile *c,
 	      OPCODE_TEX,
 	      tmp,
 	      inst->SaturateMode,
-	      inst->TexSrcUnit,
+	      unit,
 	      inst->TexSrcTarget,
 	      coord,
 	      src_undef(),
diff --git a/src/mesa/drivers/dri/i965/brw_wm_glsl.c b/src/mesa/drivers/dri/i965/brw_wm_glsl.c
index faa2837fa01..305100f8833 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_glsl.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_glsl.c
@@ -998,6 +998,8 @@ static void emit_txb(struct brw_wm_compile *c,
 {
     struct brw_compile *p = &c->func;
     struct brw_reg dst[4], src[4], payload_reg;
+    GLuint unit = c->fp->program.Base.SamplerUnits[inst->TexSrcUnit];
+
     GLuint i;
     payload_reg = get_reg(c, PROGRAM_PAYLOAD, PAYLOAD_DEPTH, 0, 1, 0, 0);
     for (i = 0; i < 4; i++) 
@@ -1029,8 +1031,8 @@ static void emit_txb(struct brw_wm_compile *c,
 	    retype(vec8(dst[0]), BRW_REGISTER_TYPE_UW),
 	    1,
 	    retype(payload_reg, BRW_REGISTER_TYPE_UW),
-	    inst->TexSrcUnit + MAX_DRAW_BUFFERS, /* surface */
-	    inst->TexSrcUnit,     /* sampler */
+	    unit + MAX_DRAW_BUFFERS, /* surface */
+	    unit,     /* sampler */
 	    inst->DstReg.WriteMask,
 	    BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE_BIAS,
 	    4,
@@ -1043,10 +1045,12 @@ static void emit_tex(struct brw_wm_compile *c,
 {
     struct brw_compile *p = &c->func;
     struct brw_reg dst[4], src[4], payload_reg;
+    GLuint unit = c->fp->program.Base.SamplerUnits[inst->TexSrcUnit];
+
     GLuint msg_len;
     GLuint i, nr;
     GLuint emit;
-    GLboolean shadow = (c->key.shadowtex_mask & (1<<inst->TexSrcUnit)) ? 1 : 0;
+    GLboolean shadow = (c->key.shadowtex_mask & (1<<unit)) ? 1 : 0;
 
     payload_reg = get_reg(c, PROGRAM_PAYLOAD, PAYLOAD_DEPTH, 0, 1, 0, 0);
 
@@ -1091,8 +1095,8 @@ static void emit_tex(struct brw_wm_compile *c,
 	    retype(vec8(dst[0]), BRW_REGISTER_TYPE_UW),
 	    1,
 	    retype(payload_reg, BRW_REGISTER_TYPE_UW),
-	    inst->TexSrcUnit + MAX_DRAW_BUFFERS, /* surface */
-	    inst->TexSrcUnit,     /* sampler */
+	    unit + MAX_DRAW_BUFFERS, /* surface */
+	    unit,     /* sampler */
 	    inst->DstReg.WriteMask,
 	    BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE,
 	    4,
-- 
2.30.2