Merge branch 'mesa_7_6_branch' into mesa_7_7_branch

[mesa.git] / src / mesa / state_tracker / st_mesa_to_tgsi.c

diff --git a/src/mesa/state_tracker/st_mesa_to_tgsi.c b/src/mesa/state_tracker/st_mesa_to_tgsi.c
index 70d7c4fee2e40bc67a6d94b1140d5ec9de2a9372..bd94c9d79e8054afff6a9bede8f014ed49b80dbb 100644 (file)
--- a/src/mesa/state_tracker/st_mesa_to_tgsi.c
+++ b/src/mesa/state_tracker/st_mesa_to_tgsi.c
@@ -278,7 +278,7 @@ static struct ureg_src swizzle_4v( struct ureg_src src,
 
 
 /**
- * Translate SWZ instructions into a single MAD.  EG:
+ * Translate a SWZ instruction into a MOV, MUL or MAD instruction.  EG:
  *
  *   SWZ dst, src.x-y10 
  * 
@@ -481,14 +481,6 @@ translate_opcode( unsigned op )
       return TGSI_OPCODE_MOV;
    case OPCODE_MUL:
       return TGSI_OPCODE_MUL;
-   case OPCODE_NOISE1:
-      return TGSI_OPCODE_NOISE1;
-   case OPCODE_NOISE2:
-      return TGSI_OPCODE_NOISE2;
-   case OPCODE_NOISE3:
-      return TGSI_OPCODE_NOISE3;
-   case OPCODE_NOISE4:
-      return TGSI_OPCODE_NOISE4;
    case OPCODE_NOP:
       return TGSI_OPCODE_NOP;
    case OPCODE_NRM3:
@@ -523,8 +515,6 @@ translate_opcode( unsigned op )
       return TGSI_OPCODE_SSG;
    case OPCODE_SUB:
       return TGSI_OPCODE_SUB;
-   case OPCODE_SWZ:
-      return TGSI_OPCODE_SWZ;
    case OPCODE_TEX:
       return TGSI_OPCODE_TEX;
    case OPCODE_TXB:
@@ -616,6 +606,21 @@ compile_instruction(
                  src, num_src );
       break;
 
+   case OPCODE_NOISE1:
+   case OPCODE_NOISE2:
+   case OPCODE_NOISE3:
+   case OPCODE_NOISE4:
+      /* At some point, a motivated person could add a better
+       * implementation of noise.  Currently not even the nvidia
+       * binary drivers do anything more than this.  In any case, the
+       * place to do this is in the GL state tracker, not the poor
+       * driver.
+       */
+      ureg_MOV( ureg, dst[0], ureg_imm1f(ureg, 0.5) );
+      break;
+                
+
+
    default:
       ureg_insn( ureg, 
                  translate_opcode( inst->Opcode ),