From b9cb74c7f826dfd320f5e5b54aa933898f7ddd3d Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keithw@vmware.com>
Date: Fri, 23 Oct 2009 14:31:24 +0100
Subject: gallium: remove the swizzling parts of ExtSwizzle

These haven't been used by the mesa state tracker since the
conversion to tgsi_ureg, and it seems that none of the
other state trackers are using it either.

This helps simplify one of the biggest suprises when starting off with
TGSI shaders.
---
 src/gallium/auxiliary/tgsi/tgsi_exec.c | 34 +++++++++++-----------------------
 1 file changed, 11 insertions(+), 23 deletions(-)

(limited to 'src/gallium/auxiliary/tgsi/tgsi_exec.c')

diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index d9661c75a0..14f0fc4e38 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -210,9 +210,8 @@ tgsi_check_soa_dependencies(const struct tgsi_full_instruction *inst)
          uint channelsWritten = 0x0;
          FOR_EACH_ENABLED_CHANNEL(*inst, chan) {
             /* check if we're reading a channel that's been written */
-            uint swizzle = tgsi_util_get_full_src_register_extswizzle(&inst->FullSrcRegisters[i], chan);
-            if (swizzle <= TGSI_SWIZZLE_W &&
-                (channelsWritten & (1 << swizzle))) {
+            uint swizzle = tgsi_util_get_full_src_register_swizzle(&inst->FullSrcRegisters[i], chan);
+            if (channelsWritten & (1 << swizzle)) {
                return TRUE;
             }
 
@@ -338,7 +337,7 @@ tgsi_exec_machine_bind_shader(
             /* XXX we only handle SOA dependencies properly for MOV/SWZ
              * at this time!
              */
-            if (opcode != TGSI_OPCODE_MOV && opcode != TGSI_OPCODE_SWZ) {
+            if (opcode != TGSI_OPCODE_MOV) {
                debug_printf("Warning: SOA dependency in instruction"
                             " is not handled:\n");
                tgsi_dump_instruction(&parse.FullToken.FullInstruction,
@@ -1130,10 +1129,10 @@ fetch_src_file_channel(
    union tgsi_exec_channel *chan )
 {
    switch( swizzle ) {
-   case TGSI_EXTSWIZZLE_X:
-   case TGSI_EXTSWIZZLE_Y:
-   case TGSI_EXTSWIZZLE_Z:
-   case TGSI_EXTSWIZZLE_W:
+   case TGSI_SWIZZLE_X:
+   case TGSI_SWIZZLE_Y:
+   case TGSI_SWIZZLE_Z:
+   case TGSI_SWIZZLE_W:
       switch( file ) {
       case TGSI_FILE_CONSTANT:
          assert(mach->Consts);
@@ -1201,14 +1200,6 @@ fetch_src_file_channel(
       }
       break;
 
-   case TGSI_EXTSWIZZLE_ZERO:
-      *chan = mach->Temps[TEMP_0_I].xyzw[TEMP_0_C];
-      break;
-
-   case TGSI_EXTSWIZZLE_ONE:
-      *chan = mach->Temps[TEMP_1_I].xyzw[TEMP_1_C];
-      break;
-
    default:
       assert( 0 );
    }
@@ -1367,7 +1358,7 @@ fetch_source(
        */
    }
 
-   swizzle = tgsi_util_get_full_src_register_extswizzle( reg, chan_index );
+   swizzle = tgsi_util_get_full_src_register_swizzle( reg, chan_index );
    fetch_src_file_channel(
       mach,
       reg->SrcRegister.File,
@@ -1689,10 +1680,8 @@ exec_kil(struct tgsi_exec_machine *mach,
    uint kilmask = 0; /* bit 0 = pixel 0, bit 1 = pixel 1, etc */
    union tgsi_exec_channel r[1];
 
-   /* This mask stores component bits that were already tested. Note that
-    * we test if the value is less than zero, so 1.0 and 0.0 need not to be
-    * tested. */
-   uniquemask = (1 << TGSI_EXTSWIZZLE_ZERO) | (1 << TGSI_EXTSWIZZLE_ONE);
+   /* This mask stores component bits that were already tested. */
+   uniquemask = 0;
 
    for (chan_index = 0; chan_index < 4; chan_index++)
    {
@@ -1700,7 +1689,7 @@ exec_kil(struct tgsi_exec_machine *mach,
       uint i;
 
       /* unswizzle channel */
-      swizzle = tgsi_util_get_full_src_register_extswizzle (
+      swizzle = tgsi_util_get_full_src_register_swizzle (
                         &inst->FullSrcRegisters[0],
                         chan_index);
 
@@ -2031,7 +2020,6 @@ exec_instruction(
       break;
 
    case TGSI_OPCODE_MOV:
-   case TGSI_OPCODE_SWZ:
       if (inst->Flags & SOA_DEPENDENCY_FLAG) {
          /* Do all fetches into temp regs, then do all stores to avoid
           * intermediate/accidental clobbering.  This could be done all the
-- 
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