src/gallium/auxiliary/tgsi/tgsi_dump.c - fp2-dev/platform/external/mesa3d - Gitiles

 /**************************************************************************
  *
  * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
  * without limitation the rights to use, copy, modify, merge, publish,
  * distribute, sub license, and/or sell copies of the Software, and to
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
  *
  * The above copyright notice and this permission notice (including the
  * next paragraph) shall be included in all copies or substantial portions
  * of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
  **************************************************************************/

 #include "util/u_debug.h"
 #include "util/u_string.h"
 #include "util/u_math.h"
 #include "util/u_memory.h"
 #include "tgsi_dump.h"
 #include "tgsi_info.h"
 #include "tgsi_iterate.h"


 /** Number of spaces to indent for IF/LOOP/etc */
 static const int indent_spaces = 3;


 struct dump_ctx
 {
    struct tgsi_iterate_context iter;

    uint instno;
    int indent;

    uint indentation;

    void (*printf)(struct dump_ctx *ctx, const char *format, ...);
 };

 static void
 dump_ctx_printf(struct dump_ctx *ctx, const char *format, ...)
 {
    va_list ap;
    (void)ctx;
    va_start(ap, format);
    debug_vprintf(format, ap);
    va_end(ap);
 }

 static void
 dump_enum(
    struct dump_ctx *ctx,
    uint e,
    const char **enums,
    uint enum_count )
 {
    if (e >= enum_count)
       ctx->printf( ctx, "%u", e );
    else
       ctx->printf( ctx, "%s", enums[e] );
 }

 #define EOL()           ctx->printf( ctx, "\n" )
 #define TXT(S)          ctx->printf( ctx, "%s", S )
 #define CHR(C)          ctx->printf( ctx, "%c", C )
 #define UIX(I)          ctx->printf( ctx, "0x%x", I )
 #define UID(I)          ctx->printf( ctx, "%u", I )
 #define INSTID(I)          ctx->printf( ctx, "% 3u", I )
 #define SID(I)          ctx->printf( ctx, "%d", I )
 #define FLT(F)          ctx->printf( ctx, "%10.4f", F )
 #define ENM(E,ENUMS)    dump_enum( ctx, E, ENUMS, sizeof( ENUMS ) / sizeof( *ENUMS ) )

 static const char *processor_type_names[] =
 {
    "FRAG",
    "VERT",
    "GEOM"
 };

 static const char *file_names[TGSI_FILE_COUNT] =
 {
    "NULL",
    "CONST",
    "IN",
    "OUT",
    "TEMP",
    "SAMP",
    "ADDR",
    "IMM",
    "LOOP",
    "PRED"
 };

 static const char *interpolate_names[] =
 {
    "CONSTANT",
    "LINEAR",
    "PERSPECTIVE"
 };

 static const char *semantic_names[] =
 {
    "POSITION",
    "COLOR",
    "BCOLOR",
    "FOG",
    "PSIZE",
    "GENERIC",
    "NORMAL",
    "FACE"
 };

 static const char *immediate_type_names[] =
 {
    "FLT32"
 };

 static const char *swizzle_names[] =
 {
    "x",
    "y",
    "z",
    "w"
 };

 static const char *texture_names[] =
 {
    "UNKNOWN",
    "1D",
    "2D",
    "3D",
    "CUBE",
    "RECT",
    "SHADOW1D",
    "SHADOW2D",
    "SHADOWRECT"
 };


 static const char *modulate_names[TGSI_MODULATE_COUNT] =
 {
    "",
    "_2X",
    "_4X",
    "_8X",
    "_D2",
    "_D4",
    "_D8"
 };

 static void
 _dump_register(
    struct dump_ctx *ctx,
    uint file,
    int first,
    int last )
 {
    ENM( file, file_names );
    CHR( '[' );
    SID( first );
    if (first != last) {
       TXT( ".." );
       SID( last );
    }
    CHR( ']' );
 }

 static void
 _dump_register_ind(
    struct dump_ctx *ctx,
    uint file,
    int index,
    uint ind_file,
    int ind_index,
    uint ind_swizzle )
 {
    ENM( file, file_names );
    CHR( '[' );
    ENM( ind_file, file_names );
    CHR( '[' );
    SID( ind_index );
    TXT( "]." );
    ENM( ind_swizzle, swizzle_names );
    if (index != 0) {
       if (index > 0)
          CHR( '+' );
       SID( index );
    }
    CHR( ']' );
 }

 static void
 _dump_writemask(
    struct dump_ctx *ctx,
    uint writemask )
 {
    if (writemask != TGSI_WRITEMASK_XYZW) {
       CHR( '.' );
       if (writemask & TGSI_WRITEMASK_X)
          CHR( 'x' );
       if (writemask & TGSI_WRITEMASK_Y)
          CHR( 'y' );
       if (writemask & TGSI_WRITEMASK_Z)
          CHR( 'z' );
       if (writemask & TGSI_WRITEMASK_W)
          CHR( 'w' );
    }
 }

 static boolean
 iter_declaration(
    struct tgsi_iterate_context *iter,
    struct tgsi_full_declaration *decl )
 {
    struct dump_ctx *ctx = (struct dump_ctx *)iter;

    assert(Elements(semantic_names) == TGSI_SEMANTIC_COUNT);
    assert(Elements(interpolate_names) == TGSI_INTERPOLATE_COUNT);

    TXT( "DCL " );

    _dump_register(
       ctx,
       decl->Declaration.File,
       decl->DeclarationRange.First,
       decl->DeclarationRange.Last );
    _dump_writemask(
       ctx,
       decl->Declaration.UsageMask );

    if (decl->Declaration.Semantic) {
       TXT( ", " );
       ENM( decl->Semantic.SemanticName, semantic_names );
       if (decl->Semantic.SemanticIndex != 0 ||
           decl->Semantic.SemanticName == TGSI_SEMANTIC_GENERIC) {
          CHR( '[' );
          UID( decl->Semantic.SemanticIndex );
          CHR( ']' );
       }
    }

    if (iter->processor.Processor == TGSI_PROCESSOR_FRAGMENT &&
        decl->Declaration.File == TGSI_FILE_INPUT)
    {
       TXT( ", " );
       ENM( decl->Declaration.Interpolate, interpolate_names );
    }

    if (decl->Declaration.Centroid) {
       TXT( ", CENTROID" );
    }

    if (decl->Declaration.Invariant) {
       TXT( ", INVARIANT" );
    }

    EOL();

    return TRUE;
 }

 void
 tgsi_dump_declaration(
    const struct tgsi_full_declaration *decl )
 {
    struct dump_ctx ctx;

    ctx.printf = dump_ctx_printf;

    iter_declaration( &ctx.iter, (struct tgsi_full_declaration *)decl );
 }

 static boolean
 iter_immediate(
    struct tgsi_iterate_context *iter,
    struct tgsi_full_immediate *imm )
 {
    struct dump_ctx *ctx = (struct dump_ctx *) iter;

    uint i;

    TXT( "IMM " );
    ENM( imm->Immediate.DataType, immediate_type_names );

    TXT( " { " );

    assert( imm->Immediate.NrTokens <= 4 + 1 );
    for (i = 0; i < imm->Immediate.NrTokens - 1; i++) {
       switch (imm->Immediate.DataType) {
       case TGSI_IMM_FLOAT32:
          FLT( imm->u[i].Float );
          break;
       default:
          assert( 0 );
       }

       if (i < imm->Immediate.NrTokens - 2)
          TXT( ", " );
    }
    TXT( " }" );

    EOL();

    return TRUE;
 }

 void
 tgsi_dump_immediate(
    const struct tgsi_full_immediate *imm )
 {
    struct dump_ctx ctx;

    ctx.printf = dump_ctx_printf;

    iter_immediate( &ctx.iter, (struct tgsi_full_immediate *)imm );
 }

 static boolean
 iter_instruction(
    struct tgsi_iterate_context *iter,
    struct tgsi_full_instruction *inst )
 {
    struct dump_ctx *ctx = (struct dump_ctx *) iter;
    uint instno = ctx->instno++;
    const struct tgsi_opcode_info *info = tgsi_get_opcode_info( inst->Instruction.Opcode );
    uint i;
    boolean first_reg = TRUE;

    INSTID( instno );
    TXT( ": " );

    ctx->indent -= info->pre_dedent;
    for(i = 0; (int)i < ctx->indent; ++i)
       TXT( "  " );
    ctx->indent += info->post_indent;

    TXT( info->mnemonic );

    switch (inst->Instruction.Saturate) {
    case TGSI_SAT_NONE:
       break;
    case TGSI_SAT_ZERO_ONE:
       TXT( "_SAT" );
       break;
    case TGSI_SAT_MINUS_PLUS_ONE:
       TXT( "_SATNV" );
       break;
    default:
       assert( 0 );
    }

    for (i = 0; i < inst->Instruction.NumDstRegs; i++) {
       const struct tgsi_full_dst_register *dst = &inst->FullDstRegisters[i];

       if (!first_reg)
          CHR( ',' );
       CHR( ' ' );

       if (dst->DstRegister.Indirect) {
          _dump_register_ind(
             ctx,
             dst->DstRegister.File,
             dst->DstRegister.Index,
             dst->DstRegisterInd.File,
             dst->DstRegisterInd.Index,
             dst->DstRegisterInd.SwizzleX );
       }
       else {
          _dump_register(
             ctx,
             dst->DstRegister.File,
             dst->DstRegister.Index,
             dst->DstRegister.Index );
       }
       ENM( dst->DstRegisterExtModulate.Modulate, modulate_names );
       _dump_writemask( ctx, dst->DstRegister.WriteMask );

       first_reg = FALSE;
    }

    for (i = 0; i < inst->Instruction.NumSrcRegs; i++) {
       const struct tgsi_full_src_register *src = &inst->FullSrcRegisters[i];

       if (!first_reg)
          CHR( ',' );
       CHR( ' ' );

       if (src->SrcRegisterExtMod.Negate)
          TXT( "-(" );
       if (src->SrcRegisterExtMod.Absolute)
          CHR( '|' );
       if (src->SrcRegisterExtMod.Scale2X)
          TXT( "2*(" );
       if (src->SrcRegisterExtMod.Bias)
          CHR( '(' );
       if (src->SrcRegisterExtMod.Complement)
          TXT( "1-(" );
       if (src->SrcRegister.Negate)
          CHR( '-' );

       if (src->SrcRegister.Indirect) {
          _dump_register_ind(
             ctx,
             src->SrcRegister.File,
             src->SrcRegister.Index,
             src->SrcRegisterInd.File,
             src->SrcRegisterInd.Index,
             src->SrcRegisterInd.SwizzleX );
       }
       else {
          _dump_register(
             ctx,
             src->SrcRegister.File,
             src->SrcRegister.Index,
             src->SrcRegister.Index );
       }

       if (src->SrcRegister.SwizzleX != TGSI_SWIZZLE_X ||
           src->SrcRegister.SwizzleY != TGSI_SWIZZLE_Y ||
           src->SrcRegister.SwizzleZ != TGSI_SWIZZLE_Z ||
           src->SrcRegister.SwizzleW != TGSI_SWIZZLE_W) {
          CHR( '.' );
          ENM( src->SrcRegister.SwizzleX, swizzle_names );
          ENM( src->SrcRegister.SwizzleY, swizzle_names );
          ENM( src->SrcRegister.SwizzleZ, swizzle_names );
          ENM( src->SrcRegister.SwizzleW, swizzle_names );
       }

       if (src->SrcRegisterExtMod.Complement)
          CHR( ')' );
       if (src->SrcRegisterExtMod.Bias)
          TXT( ")-.5" );
       if (src->SrcRegisterExtMod.Scale2X)
          CHR( ')' );
       if (src->SrcRegisterExtMod.Absolute)
          CHR( '|' );
       if (src->SrcRegisterExtMod.Negate)
          CHR( ')' );

       first_reg = FALSE;
    }

    if (inst->InstructionExtTexture.Texture != TGSI_TEXTURE_UNKNOWN) {
       TXT( ", " );
       ENM( inst->InstructionExtTexture.Texture, texture_names );
    }

    switch (inst->Instruction.Opcode) {
    case TGSI_OPCODE_IF:
    case TGSI_OPCODE_ELSE:
    case TGSI_OPCODE_BGNLOOP:
    case TGSI_OPCODE_ENDLOOP:
    case TGSI_OPCODE_CAL:
       TXT( " :" );
       UID( inst->InstructionExtLabel.Label );
       break;
    }

    /* update indentation */
    if (inst->Instruction.Opcode == TGSI_OPCODE_IF ||
        inst->Instruction.Opcode == TGSI_OPCODE_ELSE ||
        inst->Instruction.Opcode == TGSI_OPCODE_BGNFOR ||
        inst->Instruction.Opcode == TGSI_OPCODE_BGNLOOP) {
       ctx->indentation += indent_spaces;
    }

    EOL();

    return TRUE;
 }

 void
 tgsi_dump_instruction(
    const struct tgsi_full_instruction *inst,
    uint instno )
 {
    struct dump_ctx ctx;

    ctx.instno = instno;
    ctx.indent = 0;
    ctx.printf = dump_ctx_printf;
    ctx.indentation = 0;

    iter_instruction( &ctx.iter, (struct tgsi_full_instruction *)inst );
 }

 static boolean
 prolog(
    struct tgsi_iterate_context *iter )
 {
    struct dump_ctx *ctx = (struct dump_ctx *) iter;
    ENM( iter->processor.Processor, processor_type_names );
    UID( iter->version.MajorVersion );
    CHR( '.' );
    UID( iter->version.MinorVersion );
    EOL();
    return TRUE;
 }

 void
 tgsi_dump(
    const struct tgsi_token *tokens,
    uint flags )
 {
    struct dump_ctx ctx;

    ctx.iter.prolog = prolog;
    ctx.iter.iterate_instruction = iter_instruction;
    ctx.iter.iterate_declaration = iter_declaration;
    ctx.iter.iterate_immediate = iter_immediate;
    ctx.iter.epilog = NULL;

    ctx.instno = 0;
    ctx.indent = 0;
    ctx.printf = dump_ctx_printf;
    ctx.indentation = 0;

    tgsi_iterate_shader( tokens, &ctx.iter );
 }

 struct str_dump_ctx
 {
    struct dump_ctx base;
    char *str;
    char *ptr;
    int left;
 };

 static void
 str_dump_ctx_printf(struct dump_ctx *ctx, const char *format, ...)
 {
    struct str_dump_ctx *sctx = (struct str_dump_ctx *)ctx;

    if(sctx->left > 1) {
       int written;
       va_list ap;
       va_start(ap, format);
       written = util_vsnprintf(sctx->ptr, sctx->left, format, ap);
       va_end(ap);

       /* Some complicated logic needed to handle the return value of
        * vsnprintf:
        */
       if (written > 0) {
          written = MIN2(sctx->left, written);
          sctx->ptr += written;
          sctx->left -= written;
       }
    }
 }

 void
 tgsi_dump_str(
    const struct tgsi_token *tokens,
    uint flags,
    char *str,
    size_t size)
 {
    struct str_dump_ctx ctx;

    ctx.base.iter.prolog = prolog;
    ctx.base.iter.iterate_instruction = iter_instruction;
    ctx.base.iter.iterate_declaration = iter_declaration;
    ctx.base.iter.iterate_immediate = iter_immediate;
    ctx.base.iter.epilog = NULL;

    ctx.base.instno = 0;
    ctx.base.indent = 0;
    ctx.base.printf = &str_dump_ctx_printf;
    ctx.base.indentation = 0;

    ctx.str = str;
    ctx.str[0] = 0;
    ctx.ptr = str;
    ctx.left = (int)size;

    tgsi_iterate_shader( tokens, &ctx.base.iter );
 }
	/**************************************************************************
	*
	* Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
	* All Rights Reserved.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the
	* "Software"), to deal in the Software without restriction, including
	* without limitation the rights to use, copy, modify, merge, publish,
	* distribute, sub license, and/or sell copies of the Software, and to
	* permit persons to whom the Software is furnished to do so, subject to
	* the following conditions:
	*
	* The above copyright notice and this permission notice (including the
	* next paragraph) shall be included in all copies or substantial portions
	* of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
	* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
	* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	*
	**************************************************************************/

	#include "util/u_debug.h"
	#include "util/u_string.h"
	#include "util/u_math.h"
	#include "util/u_memory.h"
	#include "tgsi_dump.h"
	#include "tgsi_info.h"
	#include "tgsi_iterate.h"


	/** Number of spaces to indent for IF/LOOP/etc */
	static const int indent_spaces = 3;


	struct dump_ctx
	{
	struct tgsi_iterate_context iter;

	uint instno;
	int indent;

	uint indentation;

	void (printf)(struct dump_ctx ctx, const char *format, ...);
	};

	static void
	dump_ctx_printf(struct dump_ctx ctx, const char format, ...)
	{
	va_list ap;
	(void)ctx;
	va_start(ap, format);
	debug_vprintf(format, ap);
	va_end(ap);
	}

	static void
	dump_enum(
	struct dump_ctx *ctx,
	uint e,
	const char **enums,
	uint enum_count )
	{
	if (e >= enum_count)
	ctx->printf( ctx, "%u", e );
	else
	ctx->printf( ctx, "%s", enums[e] );
	}

	#define EOL() ctx->printf( ctx, "\n" )
	#define TXT(S) ctx->printf( ctx, "%s", S )
	#define CHR(C) ctx->printf( ctx, "%c", C )
	#define UIX(I) ctx->printf( ctx, "0x%x", I )
	#define UID(I) ctx->printf( ctx, "%u", I )
	#define INSTID(I) ctx->printf( ctx, "% 3u", I )
	#define SID(I) ctx->printf( ctx, "%d", I )
	#define FLT(F) ctx->printf( ctx, "%10.4f", F )
	#define ENM(E,ENUMS) dump_enum( ctx, E, ENUMS, sizeof( ENUMS ) / sizeof( *ENUMS ) )

	static const char *processor_type_names[] =
	{
	"FRAG",
	"VERT",
	"GEOM"
	};

	static const char *file_names[TGSI_FILE_COUNT] =
	{
	"NULL",
	"CONST",
	"IN",
	"OUT",
	"TEMP",
	"SAMP",
	"ADDR",
	"IMM",
	"LOOP",
	"PRED"
	};

	static const char *interpolate_names[] =
	{
	"CONSTANT",
	"LINEAR",
	"PERSPECTIVE"
	};

	static const char *semantic_names[] =
	{
	"POSITION",
	"COLOR",
	"BCOLOR",
	"FOG",
	"PSIZE",
	"GENERIC",
	"NORMAL",
	"FACE"
	};

	static const char *immediate_type_names[] =
	{
	"FLT32"
	};

	static const char *swizzle_names[] =
	{
	"x",
	"y",
	"z",
	"w"
	};

	static const char *texture_names[] =
	{
	"UNKNOWN",
	"1D",
	"2D",
	"3D",
	"CUBE",
	"RECT",
	"SHADOW1D",
	"SHADOW2D",
	"SHADOWRECT"
	};


	static const char *modulate_names[TGSI_MODULATE_COUNT] =
	{
	"",
	"_2X",
	"_4X",
	"_8X",
	"_D2",
	"_D4",
	"_D8"
	};

	static void
	_dump_register(
	struct dump_ctx *ctx,
	uint file,
	int first,
	int last )
	{
	ENM( file, file_names );
	CHR( '[' );
	SID( first );
	if (first != last) {
	TXT( ".." );
	SID( last );
	}
	CHR( ']' );
	}

	static void
	_dump_register_ind(
	struct dump_ctx *ctx,
	uint file,
	int index,
	uint ind_file,
	int ind_index,
	uint ind_swizzle )
	{
	ENM( file, file_names );
	CHR( '[' );
	ENM( ind_file, file_names );
	CHR( '[' );
	SID( ind_index );
	TXT( "]." );
	ENM( ind_swizzle, swizzle_names );
	if (index != 0) {
	if (index > 0)
	CHR( '+' );
	SID( index );
	}
	CHR( ']' );
	}

	static void
	_dump_writemask(
	struct dump_ctx *ctx,
	uint writemask )
	{
	if (writemask != TGSI_WRITEMASK_XYZW) {
	CHR( '.' );
	if (writemask & TGSI_WRITEMASK_X)
	CHR( 'x' );
	if (writemask & TGSI_WRITEMASK_Y)
	CHR( 'y' );
	if (writemask & TGSI_WRITEMASK_Z)
	CHR( 'z' );
	if (writemask & TGSI_WRITEMASK_W)
	CHR( 'w' );
	}
	}

	static boolean
	iter_declaration(
	struct tgsi_iterate_context *iter,
	struct tgsi_full_declaration *decl )
	{
	struct dump_ctx ctx = (struct dump_ctx )iter;

	assert(Elements(semantic_names) == TGSI_SEMANTIC_COUNT);
	assert(Elements(interpolate_names) == TGSI_INTERPOLATE_COUNT);

	TXT( "DCL " );

	_dump_register(
	ctx,
	decl->Declaration.File,
	decl->DeclarationRange.First,
	decl->DeclarationRange.Last );
	_dump_writemask(
	ctx,
	decl->Declaration.UsageMask );

	if (decl->Declaration.Semantic) {
	TXT( ", " );
	ENM( decl->Semantic.SemanticName, semantic_names );
	if (decl->Semantic.SemanticIndex != 0 \|\|
	decl->Semantic.SemanticName == TGSI_SEMANTIC_GENERIC) {
	CHR( '[' );
	UID( decl->Semantic.SemanticIndex );
	CHR( ']' );
	}
	}

	if (iter->processor.Processor == TGSI_PROCESSOR_FRAGMENT &&
	decl->Declaration.File == TGSI_FILE_INPUT)
	{
	TXT( ", " );
	ENM( decl->Declaration.Interpolate, interpolate_names );
	}

	if (decl->Declaration.Centroid) {
	TXT( ", CENTROID" );
	}

	if (decl->Declaration.Invariant) {
	TXT( ", INVARIANT" );
	}

	EOL();

	return TRUE;
	}

	void
	tgsi_dump_declaration(
	const struct tgsi_full_declaration *decl )
	{
	struct dump_ctx ctx;

	ctx.printf = dump_ctx_printf;

	iter_declaration( &ctx.iter, (struct tgsi_full_declaration *)decl );
	}

	static boolean
	iter_immediate(
	struct tgsi_iterate_context *iter,
	struct tgsi_full_immediate *imm )
	{
	struct dump_ctx ctx = (struct dump_ctx ) iter;

	uint i;

	TXT( "IMM " );
	ENM( imm->Immediate.DataType, immediate_type_names );

	TXT( " { " );

	assert( imm->Immediate.NrTokens <= 4 + 1 );
	for (i = 0; i < imm->Immediate.NrTokens - 1; i++) {
	switch (imm->Immediate.DataType) {
	case TGSI_IMM_FLOAT32:
	FLT( imm->u[i].Float );
	break;
	default:
	assert( 0 );
	}

	if (i < imm->Immediate.NrTokens - 2)
	TXT( ", " );
	}
	TXT( " }" );

	EOL();

	return TRUE;
	}

	void
	tgsi_dump_immediate(
	const struct tgsi_full_immediate *imm )
	{
	struct dump_ctx ctx;

	ctx.printf = dump_ctx_printf;

	iter_immediate( &ctx.iter, (struct tgsi_full_immediate *)imm );
	}

	static boolean
	iter_instruction(
	struct tgsi_iterate_context *iter,
	struct tgsi_full_instruction *inst )
	{
	struct dump_ctx ctx = (struct dump_ctx ) iter;
	uint instno = ctx->instno++;
	const struct tgsi_opcode_info *info = tgsi_get_opcode_info( inst->Instruction.Opcode );
	uint i;
	boolean first_reg = TRUE;

	INSTID( instno );
	TXT( ": " );

	ctx->indent -= info->pre_dedent;
	for(i = 0; (int)i < ctx->indent; ++i)
	TXT( " " );
	ctx->indent += info->post_indent;

	TXT( info->mnemonic );

	switch (inst->Instruction.Saturate) {
	case TGSI_SAT_NONE:
	break;
	case TGSI_SAT_ZERO_ONE:
	TXT( "_SAT" );
	break;
	case TGSI_SAT_MINUS_PLUS_ONE:
	TXT( "_SATNV" );
	break;
	default:
	assert( 0 );
	}

	for (i = 0; i < inst->Instruction.NumDstRegs; i++) {
	const struct tgsi_full_dst_register *dst = &inst->FullDstRegisters[i];

	if (!first_reg)
	CHR( ',' );
	CHR( ' ' );

	if (dst->DstRegister.Indirect) {
	_dump_register_ind(
	ctx,
	dst->DstRegister.File,
	dst->DstRegister.Index,
	dst->DstRegisterInd.File,
	dst->DstRegisterInd.Index,
	dst->DstRegisterInd.SwizzleX );
	}
	else {
	_dump_register(
	ctx,
	dst->DstRegister.File,
	dst->DstRegister.Index,
	dst->DstRegister.Index );
	}
	ENM( dst->DstRegisterExtModulate.Modulate, modulate_names );
	_dump_writemask( ctx, dst->DstRegister.WriteMask );

	first_reg = FALSE;
	}

	for (i = 0; i < inst->Instruction.NumSrcRegs; i++) {
	const struct tgsi_full_src_register *src = &inst->FullSrcRegisters[i];

	if (!first_reg)
	CHR( ',' );
	CHR( ' ' );

	if (src->SrcRegisterExtMod.Negate)
	TXT( "-(" );
	if (src->SrcRegisterExtMod.Absolute)
	CHR( '\|' );
	if (src->SrcRegisterExtMod.Scale2X)
	TXT( "2*(" );
	if (src->SrcRegisterExtMod.Bias)
	CHR( '(' );
	if (src->SrcRegisterExtMod.Complement)
	TXT( "1-(" );
	if (src->SrcRegister.Negate)
	CHR( '-' );

	if (src->SrcRegister.Indirect) {
	_dump_register_ind(
	ctx,
	src->SrcRegister.File,
	src->SrcRegister.Index,
	src->SrcRegisterInd.File,
	src->SrcRegisterInd.Index,
	src->SrcRegisterInd.SwizzleX );
	}
	else {
	_dump_register(
	ctx,
	src->SrcRegister.File,
	src->SrcRegister.Index,
	src->SrcRegister.Index );
	}

	if (src->SrcRegister.SwizzleX != TGSI_SWIZZLE_X \|\|
	src->SrcRegister.SwizzleY != TGSI_SWIZZLE_Y \|\|
	src->SrcRegister.SwizzleZ != TGSI_SWIZZLE_Z \|\|
	src->SrcRegister.SwizzleW != TGSI_SWIZZLE_W) {
	CHR( '.' );
	ENM( src->SrcRegister.SwizzleX, swizzle_names );
	ENM( src->SrcRegister.SwizzleY, swizzle_names );
	ENM( src->SrcRegister.SwizzleZ, swizzle_names );
	ENM( src->SrcRegister.SwizzleW, swizzle_names );
	}

	if (src->SrcRegisterExtMod.Complement)
	CHR( ')' );
	if (src->SrcRegisterExtMod.Bias)
	TXT( ")-.5" );
	if (src->SrcRegisterExtMod.Scale2X)
	CHR( ')' );
	if (src->SrcRegisterExtMod.Absolute)
	CHR( '\|' );
	if (src->SrcRegisterExtMod.Negate)
	CHR( ')' );

	first_reg = FALSE;
	}

	if (inst->InstructionExtTexture.Texture != TGSI_TEXTURE_UNKNOWN) {
	TXT( ", " );
	ENM( inst->InstructionExtTexture.Texture, texture_names );
	}

	switch (inst->Instruction.Opcode) {
	case TGSI_OPCODE_IF:
	case TGSI_OPCODE_ELSE:
	case TGSI_OPCODE_BGNLOOP:
	case TGSI_OPCODE_ENDLOOP:
	case TGSI_OPCODE_CAL:
	TXT( " :" );
	UID( inst->InstructionExtLabel.Label );
	break;
	}

	/* update indentation */
	if (inst->Instruction.Opcode == TGSI_OPCODE_IF \|\|
	inst->Instruction.Opcode == TGSI_OPCODE_ELSE \|\|
	inst->Instruction.Opcode == TGSI_OPCODE_BGNFOR \|\|
	inst->Instruction.Opcode == TGSI_OPCODE_BGNLOOP) {
	ctx->indentation += indent_spaces;
	}

	EOL();

	return TRUE;
	}

	void
	tgsi_dump_instruction(
	const struct tgsi_full_instruction *inst,
	uint instno )
	{
	struct dump_ctx ctx;

	ctx.instno = instno;
	ctx.indent = 0;
	ctx.printf = dump_ctx_printf;
	ctx.indentation = 0;

	iter_instruction( &ctx.iter, (struct tgsi_full_instruction *)inst );
	}

	static boolean
	prolog(
	struct tgsi_iterate_context *iter )
	{
	struct dump_ctx ctx = (struct dump_ctx ) iter;
	ENM( iter->processor.Processor, processor_type_names );
	UID( iter->version.MajorVersion );
	CHR( '.' );
	UID( iter->version.MinorVersion );
	EOL();
	return TRUE;
	}

	void
	tgsi_dump(
	const struct tgsi_token *tokens,
	uint flags )
	{
	struct dump_ctx ctx;

	ctx.iter.prolog = prolog;
	ctx.iter.iterate_instruction = iter_instruction;
	ctx.iter.iterate_declaration = iter_declaration;
	ctx.iter.iterate_immediate = iter_immediate;
	ctx.iter.epilog = NULL;

	ctx.instno = 0;
	ctx.indent = 0;
	ctx.printf = dump_ctx_printf;
	ctx.indentation = 0;

	tgsi_iterate_shader( tokens, &ctx.iter );
	}

	struct str_dump_ctx
	{
	struct dump_ctx base;
	char *str;
	char *ptr;
	int left;
	};

	static void
	str_dump_ctx_printf(struct dump_ctx ctx, const char format, ...)
	{
	struct str_dump_ctx sctx = (struct str_dump_ctx )ctx;

	if(sctx->left > 1) {
	int written;
	va_list ap;
	va_start(ap, format);
	written = util_vsnprintf(sctx->ptr, sctx->left, format, ap);
	va_end(ap);

	/* Some complicated logic needed to handle the return value of
	* vsnprintf:
	*/
	if (written > 0) {
	written = MIN2(sctx->left, written);
	sctx->ptr += written;
	sctx->left -= written;
	}
	}
	}

	void
	tgsi_dump_str(
	const struct tgsi_token *tokens,
	uint flags,
	char *str,
	size_t size)
	{
	struct str_dump_ctx ctx;

	ctx.base.iter.prolog = prolog;
	ctx.base.iter.iterate_instruction = iter_instruction;
	ctx.base.iter.iterate_declaration = iter_declaration;
	ctx.base.iter.iterate_immediate = iter_immediate;
	ctx.base.iter.epilog = NULL;

	ctx.base.instno = 0;
	ctx.base.indent = 0;
	ctx.base.printf = &str_dump_ctx_printf;
	ctx.base.indentation = 0;

	ctx.str = str;
	ctx.str[0] = 0;
	ctx.ptr = str;
	ctx.left = (int)size;

	tgsi_iterate_shader( tokens, &ctx.base.iter );
	}