Mesa (master): tgsi: Allow TEMPORARY registers as indirect address into source operands.

[Michał Król]

Module: Mesa
Branch: master
Commit: 463351ea6c953c3db7f135ba97160a212562daef
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=463351ea6c953c3db7f135ba97160a212562daef

Author: Michal Krol <michal at vmware.com>
Date:   Mon Jan 18 14:01:40 2010 +0100

tgsi: Allow TEMPORARY registers as indirect address into source operands.

---

 src/gallium/auxiliary/tgsi/tgsi_sanity.c |    4 ----
 src/gallium/auxiliary/tgsi/tgsi_ureg.c   |    3 ++-
 src/gallium/auxiliary/tgsi/tgsi_ureg.h   |   12 +++++++++---
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/src/gallium/auxiliary/tgsi/tgsi_sanity.c b/src/gallium/auxiliary/tgsi/tgsi_sanity.c
index e1e4f97..8bea457 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_sanity.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_sanity.c
@@ -335,10 +335,6 @@ iter_instruction(
          fill_scan_register1d(ind_reg,
                               inst->Src[i].Indirect.File,
                               inst->Src[i].Indirect.Index);
-         if (!(ind_reg->file == TGSI_FILE_ADDRESS || ind_reg->file == TGSI_FILE_LOOP) ||
-             ind_reg->indices[0] != 0) {
-            report_warning(ctx, "Indirect register neither ADDR[0] nor LOOP[0]");
-         }
          check_register_usage(
             ctx,
             ind_reg,
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.c b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
index a67d9c3..ab557a2 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
@@ -247,6 +247,7 @@ ureg_src_register( unsigned file,
    src.SwizzleZ = TGSI_SWIZZLE_Z;
    src.SwizzleW = TGSI_SWIZZLE_W;
    src.Indirect = 0;
+   src.IndirectFile = TGSI_FILE_NULL;
    src.IndirectIndex = 0;
    src.IndirectSwizzle = 0;
    src.Absolute = 0;
@@ -720,7 +721,7 @@ ureg_emit_src( struct ureg_program *ureg,
    if (src.Indirect) {
       out[0].src.Indirect = 1;
       out[n].value = 0;
-      out[n].src.File = TGSI_FILE_ADDRESS;
+      out[n].src.File = src.IndirectFile;
       out[n].src.SwizzleX = src.IndirectSwizzle;
       out[n].src.SwizzleY = src.IndirectSwizzle;
       out[n].src.SwizzleZ = src.IndirectSwizzle;
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.h b/src/gallium/auxiliary/tgsi/tgsi_ureg.h
index a743be7..8c8a6bb 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.h
@@ -52,9 +52,10 @@ struct ureg_src
    unsigned Absolute    : 1;  /* BOOL */
    unsigned Negate      : 1;  /* BOOL */
    int      Index       : 16; /* SINT */
+   unsigned IndirectFile    : 4;  /* TGSI_FILE_ */
    int      IndirectIndex   : 16; /* SINT */
-   int      IndirectSwizzle : 2;  /* TGSI_SWIZZLE_ */
-   int      DimensionIndex : 16;  /* SINT */
+   unsigned IndirectSwizzle : 2;  /* TGSI_SWIZZLE_ */
+   int      DimensionIndex  : 16; /* SINT */
 };
 
 /* Very similar to a tgsi_dst_register, removing unsupported fields
@@ -773,8 +774,9 @@ static INLINE struct ureg_src
 ureg_src_indirect( struct ureg_src reg, struct ureg_src addr )
 {
    assert(reg.File != TGSI_FILE_NULL);
-   assert(addr.File == TGSI_FILE_ADDRESS);
+   assert(addr.File == TGSI_FILE_ADDRESS || addr.File == TGSI_FILE_TEMPORARY);
    reg.Indirect = 1;
+   reg.IndirectFile = addr.File;
    reg.IndirectIndex = addr.Index;
    reg.IndirectSwizzle = addr.SwizzleX;
    return reg;
@@ -794,6 +796,8 @@ ureg_dst( struct ureg_src src )
 {
    struct ureg_dst dst;
 
+   assert(!src.Indirect || src.IndirectFile == TGSI_FILE_ADDRESS);
+
    dst.File      = src.File;
    dst.WriteMask = TGSI_WRITEMASK_XYZW;
    dst.Indirect  = src.Indirect;
@@ -822,6 +826,7 @@ ureg_src( struct ureg_dst dst )
    src.SwizzleZ  = TGSI_SWIZZLE_Z;
    src.SwizzleW  = TGSI_SWIZZLE_W;
    src.Indirect  = dst.Indirect;
+   src.IndirectFile = TGSI_FILE_ADDRESS;
    src.IndirectIndex = dst.IndirectIndex;
    src.IndirectSwizzle = dst.IndirectSwizzle;
    src.Absolute  = 0;
@@ -868,6 +873,7 @@ ureg_src_undef( void )
    src.SwizzleZ  = 0;
    src.SwizzleW  = 0;
    src.Indirect  = 0;
+   src.IndirectFile = TGSI_FILE_NULL;
    src.IndirectIndex = 0;
    src.IndirectSwizzle = 0;
    src.Absolute  = 0;