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-rw-r--r--src/mesa/state_tracker/st_mesa_to_tgsi.c1680
1 files changed, 840 insertions, 840 deletions
diff --git a/src/mesa/state_tracker/st_mesa_to_tgsi.c b/src/mesa/state_tracker/st_mesa_to_tgsi.c
index af680b9e99c..37ba6a90b58 100644
--- a/src/mesa/state_tracker/st_mesa_to_tgsi.c
+++ b/src/mesa/state_tracker/st_mesa_to_tgsi.c
@@ -1,840 +1,840 @@
-/**************************************************************************
- *
- * Copyright 2007 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.
- *
- **************************************************************************/
-
-/*
- * \author
- * Michal Krol
- */
-
-
-#include "tgsi_platform.h"
-#include "pipe/tgsi/exec/tgsi_core.h"
-#include "st_mesa_to_tgsi.h"
-#include "shader/prog_parameter.h"
-
-#define TGSI_DEBUG 0
-
-#define EMIT_IMMEDIATES 0
-
-
-/*
- * Map mesa register file to TGSI register file.
- */
-static GLuint
-map_register_file(
- enum register_file file )
-{
- switch( file ) {
- case PROGRAM_UNDEFINED:
- return TGSI_FILE_NULL;
- case PROGRAM_TEMPORARY:
- return TGSI_FILE_TEMPORARY;
- //case PROGRAM_LOCAL_PARAM:
- //case PROGRAM_ENV_PARAM:
- case PROGRAM_STATE_VAR:
- case PROGRAM_NAMED_PARAM:
- case PROGRAM_UNIFORM:
- return TGSI_FILE_CONSTANT;
- case PROGRAM_CONSTANT:
-#if EMIT_IMMEDIATES
- return TGSI_FILE_IMMEDIATE;
-#else
- return TGSI_FILE_CONSTANT;
-#endif
- case PROGRAM_INPUT:
- return TGSI_FILE_INPUT;
- case PROGRAM_OUTPUT:
- return TGSI_FILE_OUTPUT;
- case PROGRAM_ADDRESS:
- return TGSI_FILE_ADDRESS;
- default:
- assert( 0 );
- return TGSI_FILE_NULL;
- }
-}
-
-/**
- * Map mesa register file index to TGSI index.
- * Take special care when processing input and output indices.
- * \param file one of TGSI_FILE_x
- * \param index the mesa register file index
- * \param inputMapping maps Mesa input indexes to TGSI input indexes
- * \param outputMapping maps Mesa output indexes to TGSI output indexes
- */
-static GLuint
-map_register_file_index(
- GLuint file,
- GLuint index,
- const GLuint inputMapping[],
- const GLuint outputMapping[],
- const GLuint immediateMapping[])
-{
- switch( file ) {
- case TGSI_FILE_INPUT:
- /* inputs are mapped according to the user-defined map */
- return inputMapping[index];
-
- case TGSI_FILE_OUTPUT:
- return outputMapping[index];
-
-#if EMIT_IMMEDIATES
- case TGSI_FILE_IMMEDIATE:
- return immediateMapping[index];
-#endif
-
- default:
- return index;
- }
-}
-
-/*
- * Map mesa texture target to TGSI texture target.
- */
-static GLuint
-map_texture_target(
- GLuint textarget )
-{
- switch( textarget ) {
- case TEXTURE_1D_INDEX:
- return TGSI_TEXTURE_1D;
- case TEXTURE_2D_INDEX:
- return TGSI_TEXTURE_2D;
- case TEXTURE_3D_INDEX:
- return TGSI_TEXTURE_3D;
- case TEXTURE_CUBE_INDEX:
- return TGSI_TEXTURE_CUBE;
- case TEXTURE_RECT_INDEX:
- return TGSI_TEXTURE_RECT;
- default:
- assert( 0 );
- }
-
- return TGSI_TEXTURE_1D;
-}
-
-static GLuint
-convert_sat(
- GLuint sat )
-{
- switch( sat ) {
- case SATURATE_OFF:
- return TGSI_SAT_NONE;
- case SATURATE_ZERO_ONE:
- return TGSI_SAT_ZERO_ONE;
- case SATURATE_PLUS_MINUS_ONE:
- return TGSI_SAT_MINUS_PLUS_ONE;
- default:
- assert( 0 );
- return TGSI_SAT_NONE;
- }
-}
-
-static GLuint
-convert_writemask(
- GLuint writemask )
-{
- assert( WRITEMASK_X == TGSI_WRITEMASK_X );
- assert( WRITEMASK_Y == TGSI_WRITEMASK_Y );
- assert( WRITEMASK_Z == TGSI_WRITEMASK_Z );
- assert( WRITEMASK_W == TGSI_WRITEMASK_W );
- assert( (writemask & ~TGSI_WRITEMASK_XYZW) == 0 );
-
- return writemask;
-}
-
-#if EMIT_IMMEDIATES
-static struct tgsi_full_immediate
-make_immediate(const float *value, uint size)
-{
- struct tgsi_full_immediate imm;
- imm.Immediate.Type = TGSI_TOKEN_TYPE_IMMEDIATE;
- imm.Immediate.Size = 1 + size; /* one for the token itself */
- imm.Immediate.DataType = TGSI_IMM_FLOAT32;
- imm.u.ImmediateFloat32 = (struct tgsi_immediate_float32 *) value;
- return imm;
-}
-#endif
-
-static void
-compile_instruction(
- const struct prog_instruction *inst,
- struct tgsi_full_instruction *fullinst,
- const GLuint inputMapping[],
- const GLuint outputMapping[],
- const GLuint immediateMapping[],
- GLuint preamble_size,
- GLuint processor )
-{
- GLuint i;
- struct tgsi_full_dst_register *fulldst;
- struct tgsi_full_src_register *fullsrc;
-
- *fullinst = tgsi_default_full_instruction();
-
- fullinst->Instruction.Saturate = convert_sat( inst->SaturateMode );
- fullinst->Instruction.NumDstRegs = _mesa_num_inst_dst_regs( inst->Opcode );
- fullinst->Instruction.NumSrcRegs = _mesa_num_inst_src_regs( inst->Opcode );
-
- fulldst = &fullinst->FullDstRegisters[0];
- fulldst->DstRegister.File = map_register_file( inst->DstReg.File );
- fulldst->DstRegister.Index = map_register_file_index(
- fulldst->DstRegister.File,
- inst->DstReg.Index,
- inputMapping,
- outputMapping,
- NULL
- );
- fulldst->DstRegister.WriteMask = convert_writemask( inst->DstReg.WriteMask );
-
- for( i = 0; i < fullinst->Instruction.NumSrcRegs; i++ ) {
- GLuint j;
-
- fullsrc = &fullinst->FullSrcRegisters[i];
- fullsrc->SrcRegister.File = map_register_file( inst->SrcReg[i].File );
- fullsrc->SrcRegister.Index = map_register_file_index(
- fullsrc->SrcRegister.File,
- inst->SrcReg[i].Index,
- inputMapping,
- outputMapping,
- immediateMapping);
-
- for( j = 0; j < 4; j++ ) {
- GLuint swz;
-
- swz = GET_SWZ( inst->SrcReg[i].Swizzle, j );
- if( swz > SWIZZLE_W ) {
- tgsi_util_set_src_register_extswizzle(
- &fullsrc->SrcRegisterExtSwz,
- swz,
- j );
- }
- else {
- tgsi_util_set_src_register_swizzle(
- &fullsrc->SrcRegister,
- swz,
- j );
- }
- }
-
- if( inst->SrcReg[i].NegateBase == NEGATE_XYZW ) {
- fullsrc->SrcRegister.Negate = 1;
- }
- else if( inst->SrcReg[i].NegateBase != NEGATE_NONE ) {
- if( inst->SrcReg[i].NegateBase & NEGATE_X ) {
- fullsrc->SrcRegisterExtSwz.NegateX = 1;
- }
- if( inst->SrcReg[i].NegateBase & NEGATE_Y ) {
- fullsrc->SrcRegisterExtSwz.NegateY = 1;
- }
- if( inst->SrcReg[i].NegateBase & NEGATE_Z ) {
- fullsrc->SrcRegisterExtSwz.NegateZ = 1;
- }
- if( inst->SrcReg[i].NegateBase & NEGATE_W ) {
- fullsrc->SrcRegisterExtSwz.NegateW = 1;
- }
- }
-
- if( inst->SrcReg[i].Abs ) {
- fullsrc->SrcRegisterExtMod.Absolute = 1;
- }
-
- if( inst->SrcReg[i].NegateAbs ) {
- fullsrc->SrcRegisterExtMod.Negate = 1;
- }
-
- if( inst->SrcReg[i].RelAddr ) {
- fullsrc->SrcRegister.Indirect = 1;
-
- fullsrc->SrcRegisterInd.File = TGSI_FILE_ADDRESS;
- fullsrc->SrcRegisterInd.Index = 0;
- }
- }
-
- switch( inst->Opcode ) {
- case OPCODE_ARL:
- fullinst->Instruction.Opcode = TGSI_OPCODE_ARL;
- break;
- case OPCODE_ABS:
- fullinst->Instruction.Opcode = TGSI_OPCODE_ABS;
- break;
- case OPCODE_ADD:
- fullinst->Instruction.Opcode = TGSI_OPCODE_ADD;
- break;
- case OPCODE_BGNLOOP:
- fullinst->Instruction.Opcode = TGSI_OPCODE_BGNLOOP2;
- fullinst->InstructionExtLabel.Label = inst->BranchTarget + preamble_size;
- break;
- case OPCODE_BGNSUB:
- fullinst->Instruction.Opcode = TGSI_OPCODE_BGNSUB;
- break;
- case OPCODE_BRA:
- fullinst->Instruction.Opcode = TGSI_OPCODE_BRA;
- break;
- case OPCODE_BRK:
- fullinst->Instruction.Opcode = TGSI_OPCODE_BRK;
- break;
- case OPCODE_CAL:
- fullinst->Instruction.Opcode = TGSI_OPCODE_CAL;
- fullinst->InstructionExtLabel.Label = inst->BranchTarget + preamble_size;
- break;
- case OPCODE_CMP:
- fullinst->Instruction.Opcode = TGSI_OPCODE_CMP;
- break;
- case OPCODE_CONT:
- fullinst->Instruction.Opcode = TGSI_OPCODE_CONT;
- break;
- case OPCODE_COS:
- fullinst->Instruction.Opcode = TGSI_OPCODE_COS;
- break;
- case OPCODE_DDX:
- fullinst->Instruction.Opcode = TGSI_OPCODE_DDX;
- break;
- case OPCODE_DDY:
- fullinst->Instruction.Opcode = TGSI_OPCODE_DDY;
- break;
- case OPCODE_DP3:
- fullinst->Instruction.Opcode = TGSI_OPCODE_DP3;
- break;
- case OPCODE_DP4:
- fullinst->Instruction.Opcode = TGSI_OPCODE_DP4;
- break;
- case OPCODE_DPH:
- fullinst->Instruction.Opcode = TGSI_OPCODE_DPH;
- break;
- case OPCODE_DST:
- fullinst->Instruction.Opcode = TGSI_OPCODE_DST;
- break;
- case OPCODE_ELSE:
- fullinst->Instruction.Opcode = TGSI_OPCODE_ELSE;
- fullinst->InstructionExtLabel.Label = inst->BranchTarget + preamble_size;
- break;
- case OPCODE_ENDIF:
- fullinst->Instruction.Opcode = TGSI_OPCODE_ENDIF;
- break;
- case OPCODE_ENDLOOP:
- fullinst->Instruction.Opcode = TGSI_OPCODE_ENDLOOP2;
- fullinst->InstructionExtLabel.Label = inst->BranchTarget + preamble_size;
- break;
- case OPCODE_ENDSUB:
- fullinst->Instruction.Opcode = TGSI_OPCODE_ENDSUB;
- break;
- case OPCODE_EX2:
- fullinst->Instruction.Opcode = TGSI_OPCODE_EX2;
- break;
- case OPCODE_EXP:
- fullinst->Instruction.Opcode = TGSI_OPCODE_EXP;
- break;
- case OPCODE_FLR:
- fullinst->Instruction.Opcode = TGSI_OPCODE_FLR;
- break;
- case OPCODE_FRC:
- fullinst->Instruction.Opcode = TGSI_OPCODE_FRC;
- break;
- case OPCODE_IF:
- fullinst->Instruction.Opcode = TGSI_OPCODE_IF;
- fullinst->InstructionExtLabel.Label = inst->BranchTarget + preamble_size;
- break;
- case OPCODE_INT:
- fullinst->Instruction.Opcode = TGSI_OPCODE_INT;
- break;
- case OPCODE_KIL:
- /* predicated w/ a register */
- fullinst->Instruction.Opcode = TGSI_OPCODE_KILP;
- break;
- case OPCODE_KIL_NV:
- /* unpredicated */
- assert(inst->DstReg.CondMask == COND_TR);
- fullinst->Instruction.Opcode = TGSI_OPCODE_KIL;
- break;
- case OPCODE_LG2:
- fullinst->Instruction.Opcode = TGSI_OPCODE_LG2;
- break;
- case OPCODE_LOG:
- fullinst->Instruction.Opcode = TGSI_OPCODE_LOG;
- break;
- case OPCODE_LIT:
- fullinst->Instruction.Opcode = TGSI_OPCODE_LIT;
- break;
- case OPCODE_LRP:
- fullinst->Instruction.Opcode = TGSI_OPCODE_LRP;
- break;
- case OPCODE_MAD:
- fullinst->Instruction.Opcode = TGSI_OPCODE_MAD;
- break;
- case OPCODE_MAX:
- fullinst->Instruction.Opcode = TGSI_OPCODE_MAX;
- break;
- case OPCODE_MIN:
- fullinst->Instruction.Opcode = TGSI_OPCODE_MIN;
- break;
- case OPCODE_MOV:
- fullinst->Instruction.Opcode = TGSI_OPCODE_MOV;
- break;
- case OPCODE_MUL:
- fullinst->Instruction.Opcode = TGSI_OPCODE_MUL;
- break;
- case OPCODE_NOISE1:
- fullinst->Instruction.Opcode = TGSI_OPCODE_NOISE1;
- break;
- case OPCODE_NOISE2:
- fullinst->Instruction.Opcode = TGSI_OPCODE_NOISE2;
- break;
- case OPCODE_NOISE3:
- fullinst->Instruction.Opcode = TGSI_OPCODE_NOISE3;
- break;
- case OPCODE_NOISE4:
- fullinst->Instruction.Opcode = TGSI_OPCODE_NOISE4;
- break;
- case OPCODE_NOP:
- fullinst->Instruction.Opcode = TGSI_OPCODE_NOP;
- break;
- case OPCODE_POW:
- fullinst->Instruction.Opcode = TGSI_OPCODE_POW;
- break;
- case OPCODE_RCP:
- fullinst->Instruction.Opcode = TGSI_OPCODE_RCP;
- break;
- case OPCODE_RET:
- fullinst->Instruction.Opcode = TGSI_OPCODE_RET;
- break;
- case OPCODE_RSQ:
- fullinst->Instruction.Opcode = TGSI_OPCODE_RSQ;
- tgsi_util_set_full_src_register_sign_mode(
- &fullinst->FullSrcRegisters[0],
- TGSI_UTIL_SIGN_CLEAR );
- break;
- case OPCODE_SCS:
- fullinst->Instruction.Opcode = TGSI_OPCODE_SCS;
- fulldst->DstRegister.WriteMask &= TGSI_WRITEMASK_XY;
- break;
- case OPCODE_SEQ:
- fullinst->Instruction.Opcode = TGSI_OPCODE_SEQ;
- break;
- case OPCODE_SGE:
- fullinst->Instruction.Opcode = TGSI_OPCODE_SGE;
- break;
- case OPCODE_SGT:
- fullinst->Instruction.Opcode = TGSI_OPCODE_SGT;
- break;
- case OPCODE_SIN:
- fullinst->Instruction.Opcode = TGSI_OPCODE_SIN;
- break;
- case OPCODE_SLE:
- fullinst->Instruction.Opcode = TGSI_OPCODE_SLE;
- break;
- case OPCODE_SLT:
- fullinst->Instruction.Opcode = TGSI_OPCODE_SLT;
- break;
- case OPCODE_SNE:
- fullinst->Instruction.Opcode = TGSI_OPCODE_SNE;
- break;
- case OPCODE_SUB:
- fullinst->Instruction.Opcode = TGSI_OPCODE_SUB;
- break;
- case OPCODE_SWZ:
- fullinst->Instruction.Opcode = TGSI_OPCODE_SWZ;
- break;
- case OPCODE_TEX:
- /* ordinary texture lookup */
- fullinst->Instruction.Opcode = TGSI_OPCODE_TEX;
- fullinst->Instruction.NumSrcRegs = 2;
- fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
- fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
- fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
- break;
- case OPCODE_TXB:
- /* texture lookup with LOD bias */
- fullinst->Instruction.Opcode = TGSI_OPCODE_TXB;
- fullinst->Instruction.NumSrcRegs = 2;
- fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
- fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
- fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
- break;
- case OPCODE_TXD:
- /* texture lookup with explicit partial derivatives */
- fullinst->Instruction.Opcode = TGSI_OPCODE_TXD;
- fullinst->Instruction.NumSrcRegs = 4;
- fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
- /* src[0] = coord, src[1] = d[strq]/dx, src[2] = d[strq]/dy */
- fullinst->FullSrcRegisters[3].SrcRegister.File = TGSI_FILE_SAMPLER;
- fullinst->FullSrcRegisters[3].SrcRegister.Index = inst->TexSrcUnit;
- break;
- case OPCODE_TXL:
- /* texture lookup with explicit LOD */
- fullinst->Instruction.Opcode = TGSI_OPCODE_TXL;
- fullinst->Instruction.NumSrcRegs = 2;
- fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
- fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
- fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
- break;
- case OPCODE_TXP:
- /* texture lookup with divide by Q component */
- /* convert to TEX w/ special flag for division */
- fullinst->Instruction.Opcode = TGSI_OPCODE_TEX;
- fullinst->Instruction.NumSrcRegs = 2;
- fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
- fullinst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide = TGSI_EXTSWIZZLE_W;
- fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
- fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
- break;
- case OPCODE_XPD:
- fullinst->Instruction.Opcode = TGSI_OPCODE_XPD;
- fulldst->DstRegister.WriteMask &= TGSI_WRITEMASK_XYZ;
- break;
- case OPCODE_END:
- fullinst->Instruction.Opcode = TGSI_OPCODE_RET;
- break;
- default:
- assert( 0 );
- }
-}
-
-/**
- * \param usage_mask bitfield of TGSI_WRITEMASK_{XYZW} tokens
- */
-static struct tgsi_full_declaration
-make_input_decl(
- GLuint index,
- GLuint interpolate,
- GLuint usage_mask,
- GLboolean semantic_info,
- GLuint semantic_name,
- GLbitfield semantic_index )
-{
- struct tgsi_full_declaration decl;
-
- assert(semantic_name < TGSI_SEMANTIC_COUNT);
-
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_INPUT;
- decl.Declaration.Declare = TGSI_DECLARE_RANGE;
- decl.Declaration.UsageMask = usage_mask;
- decl.Declaration.Semantic = semantic_info;
- decl.Declaration.Interpolate = 1;
- decl.u.DeclarationRange.First = index;
- decl.u.DeclarationRange.Last = index;
- if (semantic_info) {
- decl.Semantic.SemanticName = semantic_name;
- decl.Semantic.SemanticIndex = semantic_index;
- }
- decl.Interpolation.Interpolate = interpolate;
-
- return decl;
-}
-
-/**
- * \param usage_mask bitfield of TGSI_WRITEMASK_{XYZW} tokens
- */
-static struct tgsi_full_declaration
-make_output_decl(
- GLuint index,
- GLuint semantic_name,
- GLuint semantic_index,
- GLbitfield usage_mask )
-{
- struct tgsi_full_declaration decl;
-
- assert(semantic_name < TGSI_SEMANTIC_COUNT);
-
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_OUTPUT;
- decl.Declaration.Declare = TGSI_DECLARE_RANGE;
- decl.Declaration.UsageMask = usage_mask;
- decl.Declaration.Semantic = 1;
- decl.u.DeclarationRange.First = index;
- decl.u.DeclarationRange.Last = index;
- decl.Semantic.SemanticName = semantic_name;
- decl.Semantic.SemanticIndex = semantic_index;
-
- return decl;
-}
-
-
-static struct tgsi_full_declaration
-make_temp_decl(
- GLuint start_index,
- GLuint end_index )
-{
- struct tgsi_full_declaration decl;
- decl = tgsi_default_full_declaration();
- decl.Declaration.File = TGSI_FILE_TEMPORARY;
- decl.Declaration.Declare = TGSI_DECLARE_RANGE;
- decl.u.DeclarationRange.First = start_index;
- decl.u.DeclarationRange.Last = end_index;
- return decl;
-}
-
-
-/**
- * Find the temporaries which are used in the given program.
- */
-static void
-find_temporaries(const struct gl_program *program,
- GLboolean tempsUsed[MAX_PROGRAM_TEMPS])
-{
- GLuint i, j;
-
- for (i = 0; i < MAX_PROGRAM_TEMPS; i++)
- tempsUsed[i] = GL_FALSE;
-
- for (i = 0; i < program->NumInstructions; i++) {
- const struct prog_instruction *inst = program->Instructions + i;
- const GLuint n = _mesa_num_inst_src_regs( inst->Opcode );
- for (j = 0; j < n; j++) {
- if (inst->SrcReg[j].File == PROGRAM_TEMPORARY)
- tempsUsed[inst->SrcReg[j].Index] = GL_TRUE;
- if (inst->DstReg.File == PROGRAM_TEMPORARY)
- tempsUsed[inst->DstReg.Index] = GL_TRUE;
- }
- }
-}
-
-
-
-
-/**
- * Translate Mesa program to TGSI format.
- * \param program the program to translate
- * \param numInputs number of input registers used
- * \param inputMapping maps Mesa fragment program inputs to TGSI generic
- * input indexes
- * \param inputSemanticName the TGSI_SEMANTIC flag for each input
- * \param inputSemanticIndex the semantic index (ex: which texcoord) for each input
- * \param interpMode the TGSI_INTERPOLATE_LINEAR/PERSP mode for each input
-
- * \param numOutputs number of output registers used
- * \param outputMapping maps Mesa fragment program outputs to TGSI
- * generic outputs
- * \param outputSemanticName the TGSI_SEMANTIC flag for each output
- * \param outputSemanticIndex the semantic index (ex: which texcoord) for each output
- * \param tokens array to store translated tokens in
- * \param maxTokens size of the tokens array
- *
- */
-GLboolean
-tgsi_translate_mesa_program(
- uint procType,
- const struct gl_program *program,
- GLuint numInputs,
- const GLuint inputMapping[],
- const ubyte inputSemanticName[],
- const ubyte inputSemanticIndex[],
- const GLuint interpMode[],
- GLuint numOutputs,
- const GLuint outputMapping[],
- const ubyte outputSemanticName[],
- const ubyte outputSemanticIndex[],
- struct tgsi_token *tokens,
- GLuint maxTokens )
-{
- GLuint i;
- GLuint ti; /* token index */
- struct tgsi_header *header;
- struct tgsi_processor *processor;
- struct tgsi_full_instruction fullinst;
- GLuint preamble_size = 0;
- GLuint immediates[1000];
-#if EMIT_IMMEDIATES
- GLuint numImmediates = 0;
-#endif
-
- assert(procType == TGSI_PROCESSOR_FRAGMENT ||
- procType == TGSI_PROCESSOR_VERTEX);
-
- *(struct tgsi_version *) &tokens[0] = tgsi_build_version();
-
- header = (struct tgsi_header *) &tokens[1];
- *header = tgsi_build_header();
-
- processor = (struct tgsi_processor *) &tokens[2];
- *processor = tgsi_build_processor( procType, header );
-
- ti = 3;
-
- /*
- * Declare input attributes.
- */
- if (procType == TGSI_PROCESSOR_FRAGMENT) {
- for (i = 0; i < numInputs; i++) {
- struct tgsi_full_declaration fulldecl;
- switch (inputSemanticName[i]) {
- case TGSI_SEMANTIC_POSITION:
- /* Fragment XY pos */
- fulldecl = make_input_decl(i,
- TGSI_INTERPOLATE_CONSTANT,
- TGSI_WRITEMASK_XY,
- GL_TRUE, TGSI_SEMANTIC_POSITION, 0 );
- ti += tgsi_build_full_declaration(
- &fulldecl,
- &tokens[ti],
- header,
- maxTokens - ti );
- /* Fragment ZW pos */
- fulldecl = make_input_decl(i,
- TGSI_INTERPOLATE_LINEAR,
- TGSI_WRITEMASK_ZW,
- GL_TRUE, TGSI_SEMANTIC_POSITION, 0 );
- ti += tgsi_build_full_declaration(&fulldecl,
- &tokens[ti],
- header,
- maxTokens - ti );
- break;
- default:
- fulldecl = make_input_decl(i,
- interpMode[i],
- TGSI_WRITEMASK_XYZW,
- GL_TRUE, inputSemanticName[i],
- inputSemanticIndex[i]);
- ti += tgsi_build_full_declaration(&fulldecl,
- &tokens[ti],
- header,
- maxTokens - ti );
- break;
- }
- }
- }
- else {
- /* vertex prog */
- for (i = 0; i < numInputs; i++) {
- struct tgsi_full_declaration fulldecl;
- fulldecl = make_input_decl(i,
- TGSI_INTERPOLATE_ATTRIB,
- TGSI_WRITEMASK_XYZW,
- GL_FALSE, inputSemanticName[i],
- inputSemanticIndex[i]);
- ti += tgsi_build_full_declaration(&fulldecl,
- &tokens[ti],
- header,
- maxTokens - ti );
- }
- }
-
- /*
- * Declare output attributes.
- */
- if (procType == TGSI_PROCESSOR_FRAGMENT) {
- for (i = 0; i < numOutputs; i++) {
- struct tgsi_full_declaration fulldecl;
- switch (outputSemanticName[i]) {
- case TGSI_SEMANTIC_POSITION:
- fulldecl = make_output_decl(i,
- TGSI_SEMANTIC_POSITION, 0, /* Z / Depth */
- TGSI_WRITEMASK_Z );
- break;
- case TGSI_SEMANTIC_COLOR:
- fulldecl = make_output_decl(i,
- TGSI_SEMANTIC_COLOR, 0,
- TGSI_WRITEMASK_XYZW );
- break;
- default:
- abort();
- }
- ti += tgsi_build_full_declaration(&fulldecl,
- &tokens[ti],
- header,
- maxTokens - ti );
- }
- }
- else {
- /* vertex prog */
- for (i = 0; i < numOutputs; i++) {
- struct tgsi_full_declaration fulldecl;
- fulldecl = make_output_decl(i,
- outputSemanticName[i],
- outputSemanticIndex[i],
- TGSI_WRITEMASK_XYZW );
- ti += tgsi_build_full_declaration(&fulldecl,
- &tokens[ti],
- header,
- maxTokens - ti );
- }
- }
-
- /* temporary decls */
- {
- GLboolean tempsUsed[MAX_PROGRAM_TEMPS + 1];
- GLboolean inside_range = GL_FALSE;
- GLuint start_range;
-
- find_temporaries(program, tempsUsed);
- tempsUsed[MAX_PROGRAM_TEMPS] = GL_FALSE;
- for (i = 0; i < MAX_PROGRAM_TEMPS + 1; i++) {
- if (tempsUsed[i] && !inside_range) {
- inside_range = GL_TRUE;
- start_range = i;
- }
- else if (!tempsUsed[i] && inside_range) {
- struct tgsi_full_declaration fulldecl;
-
- inside_range = GL_FALSE;
- fulldecl = make_temp_decl( start_range, i - 1 );
- ti += tgsi_build_full_declaration(
- &fulldecl,
- &tokens[ti],
- header,
- maxTokens - ti );
- }
- }
- }
-
- /* immediates/literals */
-#if EMIT_IMMEDIATES
- for (i = 0; i < program->Parameters->NumParameters; i++) {
- if (program->Parameters->Parameters[i].Type == PROGRAM_CONSTANT) {
- struct tgsi_full_immediate fullimm
- = make_immediate(program->Parameters->ParameterValues[i],
- program->Parameters->Parameters[i].Size);
- ti += tgsi_build_full_immediate(&fullimm,
- &tokens[ti],
- header,
- maxTokens - ti);
- immediates[i] = numImmediates;
- numImmediates++;
- }
- }
-#endif
-
- for( i = 0; i < program->NumInstructions; i++ ) {
- compile_instruction(
- &program->Instructions[i],
- &fullinst,
- inputMapping,
- outputMapping,
- immediates,
- preamble_size,
- procType );
-
- ti += tgsi_build_full_instruction(
- &fullinst,
- &tokens[ti],
- header,
- maxTokens - ti );
- }
-
- return GL_TRUE;
-}
-
+/**************************************************************************
+ *
+ * Copyright 2007 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.
+ *
+ **************************************************************************/
+
+/*
+ * \author
+ * Michal Krol
+ */
+
+
+#include "tgsi_platform.h"
+#include "pipe/tgsi/exec/tgsi_core.h"
+#include "st_mesa_to_tgsi.h"
+#include "shader/prog_parameter.h"
+
+#define TGSI_DEBUG 0
+
+#define EMIT_IMMEDIATES 0
+
+
+/*
+ * Map mesa register file to TGSI register file.
+ */
+static GLuint
+map_register_file(
+ enum register_file file )
+{
+ switch( file ) {
+ case PROGRAM_UNDEFINED:
+ return TGSI_FILE_NULL;
+ case PROGRAM_TEMPORARY:
+ return TGSI_FILE_TEMPORARY;
+ //case PROGRAM_LOCAL_PARAM:
+ //case PROGRAM_ENV_PARAM:
+ case PROGRAM_STATE_VAR:
+ case PROGRAM_NAMED_PARAM:
+ case PROGRAM_UNIFORM:
+ return TGSI_FILE_CONSTANT;
+ case PROGRAM_CONSTANT:
+#if EMIT_IMMEDIATES
+ return TGSI_FILE_IMMEDIATE;
+#else
+ return TGSI_FILE_CONSTANT;
+#endif
+ case PROGRAM_INPUT:
+ return TGSI_FILE_INPUT;
+ case PROGRAM_OUTPUT:
+ return TGSI_FILE_OUTPUT;
+ case PROGRAM_ADDRESS:
+ return TGSI_FILE_ADDRESS;
+ default:
+ assert( 0 );
+ return TGSI_FILE_NULL;
+ }
+}
+
+/**
+ * Map mesa register file index to TGSI index.
+ * Take special care when processing input and output indices.
+ * \param file one of TGSI_FILE_x
+ * \param index the mesa register file index
+ * \param inputMapping maps Mesa input indexes to TGSI input indexes
+ * \param outputMapping maps Mesa output indexes to TGSI output indexes
+ */
+static GLuint
+map_register_file_index(
+ GLuint file,
+ GLuint index,
+ const GLuint inputMapping[],
+ const GLuint outputMapping[],
+ const GLuint immediateMapping[])
+{
+ switch( file ) {
+ case TGSI_FILE_INPUT:
+ /* inputs are mapped according to the user-defined map */
+ return inputMapping[index];
+
+ case TGSI_FILE_OUTPUT:
+ return outputMapping[index];
+
+#if EMIT_IMMEDIATES
+ case TGSI_FILE_IMMEDIATE:
+ return immediateMapping[index];
+#endif
+
+ default:
+ return index;
+ }
+}
+
+/*
+ * Map mesa texture target to TGSI texture target.
+ */
+static GLuint
+map_texture_target(
+ GLuint textarget )
+{
+ switch( textarget ) {
+ case TEXTURE_1D_INDEX:
+ return TGSI_TEXTURE_1D;
+ case TEXTURE_2D_INDEX:
+ return TGSI_TEXTURE_2D;
+ case TEXTURE_3D_INDEX:
+ return TGSI_TEXTURE_3D;
+ case TEXTURE_CUBE_INDEX:
+ return TGSI_TEXTURE_CUBE;
+ case TEXTURE_RECT_INDEX:
+ return TGSI_TEXTURE_RECT;
+ default:
+ assert( 0 );
+ }
+
+ return TGSI_TEXTURE_1D;
+}
+
+static GLuint
+convert_sat(
+ GLuint sat )
+{
+ switch( sat ) {
+ case SATURATE_OFF:
+ return TGSI_SAT_NONE;
+ case SATURATE_ZERO_ONE:
+ return TGSI_SAT_ZERO_ONE;
+ case SATURATE_PLUS_MINUS_ONE:
+ return TGSI_SAT_MINUS_PLUS_ONE;
+ default:
+ assert( 0 );
+ return TGSI_SAT_NONE;
+ }
+}
+
+static GLuint
+convert_writemask(
+ GLuint writemask )
+{
+ assert( WRITEMASK_X == TGSI_WRITEMASK_X );
+ assert( WRITEMASK_Y == TGSI_WRITEMASK_Y );
+ assert( WRITEMASK_Z == TGSI_WRITEMASK_Z );
+ assert( WRITEMASK_W == TGSI_WRITEMASK_W );
+ assert( (writemask & ~TGSI_WRITEMASK_XYZW) == 0 );
+
+ return writemask;
+}
+
+#if EMIT_IMMEDIATES
+static struct tgsi_full_immediate
+make_immediate(const float *value, uint size)
+{
+ struct tgsi_full_immediate imm;
+ imm.Immediate.Type = TGSI_TOKEN_TYPE_IMMEDIATE;
+ imm.Immediate.Size = 1 + size; /* one for the token itself */
+ imm.Immediate.DataType = TGSI_IMM_FLOAT32;
+ imm.u.ImmediateFloat32 = (struct tgsi_immediate_float32 *) value;
+ return imm;
+}
+#endif
+
+static void
+compile_instruction(
+ const struct prog_instruction *inst,
+ struct tgsi_full_instruction *fullinst,
+ const GLuint inputMapping[],
+ const GLuint outputMapping[],
+ const GLuint immediateMapping[],
+ GLuint preamble_size,
+ GLuint processor )
+{
+ GLuint i;
+ struct tgsi_full_dst_register *fulldst;
+ struct tgsi_full_src_register *fullsrc;
+
+ *fullinst = tgsi_default_full_instruction();
+
+ fullinst->Instruction.Saturate = convert_sat( inst->SaturateMode );
+ fullinst->Instruction.NumDstRegs = _mesa_num_inst_dst_regs( inst->Opcode );
+ fullinst->Instruction.NumSrcRegs = _mesa_num_inst_src_regs( inst->Opcode );
+
+ fulldst = &fullinst->FullDstRegisters[0];
+ fulldst->DstRegister.File = map_register_file( inst->DstReg.File );
+ fulldst->DstRegister.Index = map_register_file_index(
+ fulldst->DstRegister.File,
+ inst->DstReg.Index,
+ inputMapping,
+ outputMapping,
+ NULL
+ );
+ fulldst->DstRegister.WriteMask = convert_writemask( inst->DstReg.WriteMask );
+
+ for( i = 0; i < fullinst->Instruction.NumSrcRegs; i++ ) {
+ GLuint j;
+
+ fullsrc = &fullinst->FullSrcRegisters[i];
+ fullsrc->SrcRegister.File = map_register_file( inst->SrcReg[i].File );
+ fullsrc->SrcRegister.Index = map_register_file_index(
+ fullsrc->SrcRegister.File,
+ inst->SrcReg[i].Index,
+ inputMapping,
+ outputMapping,
+ immediateMapping);
+
+ for( j = 0; j < 4; j++ ) {
+ GLuint swz;
+
+ swz = GET_SWZ( inst->SrcReg[i].Swizzle, j );
+ if( swz > SWIZZLE_W ) {
+ tgsi_util_set_src_register_extswizzle(
+ &fullsrc->SrcRegisterExtSwz,
+ swz,
+ j );
+ }
+ else {
+ tgsi_util_set_src_register_swizzle(
+ &fullsrc->SrcRegister,
+ swz,
+ j );
+ }
+ }
+
+ if( inst->SrcReg[i].NegateBase == NEGATE_XYZW ) {
+ fullsrc->SrcRegister.Negate = 1;
+ }
+ else if( inst->SrcReg[i].NegateBase != NEGATE_NONE ) {
+ if( inst->SrcReg[i].NegateBase & NEGATE_X ) {
+ fullsrc->SrcRegisterExtSwz.NegateX = 1;
+ }
+ if( inst->SrcReg[i].NegateBase & NEGATE_Y ) {
+ fullsrc->SrcRegisterExtSwz.NegateY = 1;
+ }
+ if( inst->SrcReg[i].NegateBase & NEGATE_Z ) {
+ fullsrc->SrcRegisterExtSwz.NegateZ = 1;
+ }
+ if( inst->SrcReg[i].NegateBase & NEGATE_W ) {
+ fullsrc->SrcRegisterExtSwz.NegateW = 1;
+ }
+ }
+
+ if( inst->SrcReg[i].Abs ) {
+ fullsrc->SrcRegisterExtMod.Absolute = 1;
+ }
+
+ if( inst->SrcReg[i].NegateAbs ) {
+ fullsrc->SrcRegisterExtMod.Negate = 1;
+ }
+
+ if( inst->SrcReg[i].RelAddr ) {
+ fullsrc->SrcRegister.Indirect = 1;
+
+ fullsrc->SrcRegisterInd.File = TGSI_FILE_ADDRESS;
+ fullsrc->SrcRegisterInd.Index = 0;
+ }
+ }
+
+ switch( inst->Opcode ) {
+ case OPCODE_ARL:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_ARL;
+ break;
+ case OPCODE_ABS:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_ABS;
+ break;
+ case OPCODE_ADD:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_ADD;
+ break;
+ case OPCODE_BGNLOOP:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_BGNLOOP2;
+ fullinst->InstructionExtLabel.Label = inst->BranchTarget + preamble_size;
+ break;
+ case OPCODE_BGNSUB:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_BGNSUB;
+ break;
+ case OPCODE_BRA:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_BRA;
+ break;
+ case OPCODE_BRK:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_BRK;
+ break;
+ case OPCODE_CAL:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_CAL;
+ fullinst->InstructionExtLabel.Label = inst->BranchTarget + preamble_size;
+ break;
+ case OPCODE_CMP:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_CMP;
+ break;
+ case OPCODE_CONT:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_CONT;
+ break;
+ case OPCODE_COS:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_COS;
+ break;
+ case OPCODE_DDX:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_DDX;
+ break;
+ case OPCODE_DDY:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_DDY;
+ break;
+ case OPCODE_DP3:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_DP3;
+ break;
+ case OPCODE_DP4:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_DP4;
+ break;
+ case OPCODE_DPH:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_DPH;
+ break;
+ case OPCODE_DST:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_DST;
+ break;
+ case OPCODE_ELSE:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_ELSE;
+ fullinst->InstructionExtLabel.Label = inst->BranchTarget + preamble_size;
+ break;
+ case OPCODE_ENDIF:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_ENDIF;
+ break;
+ case OPCODE_ENDLOOP:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_ENDLOOP2;
+ fullinst->InstructionExtLabel.Label = inst->BranchTarget + preamble_size;
+ break;
+ case OPCODE_ENDSUB:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_ENDSUB;
+ break;
+ case OPCODE_EX2:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_EX2;
+ break;
+ case OPCODE_EXP:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_EXP;
+ break;
+ case OPCODE_FLR:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_FLR;
+ break;
+ case OPCODE_FRC:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_FRC;
+ break;
+ case OPCODE_IF:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_IF;
+ fullinst->InstructionExtLabel.Label = inst->BranchTarget + preamble_size;
+ break;
+ case OPCODE_INT:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_INT;
+ break;
+ case OPCODE_KIL:
+ /* predicated w/ a register */
+ fullinst->Instruction.Opcode = TGSI_OPCODE_KILP;
+ break;
+ case OPCODE_KIL_NV:
+ /* unpredicated */
+ assert(inst->DstReg.CondMask == COND_TR);
+ fullinst->Instruction.Opcode = TGSI_OPCODE_KIL;
+ break;
+ case OPCODE_LG2:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_LG2;
+ break;
+ case OPCODE_LOG:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_LOG;
+ break;
+ case OPCODE_LIT:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_LIT;
+ break;
+ case OPCODE_LRP:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_LRP;
+ break;
+ case OPCODE_MAD:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_MAD;
+ break;
+ case OPCODE_MAX:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_MAX;
+ break;
+ case OPCODE_MIN:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_MIN;
+ break;
+ case OPCODE_MOV:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_MOV;
+ break;
+ case OPCODE_MUL:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_MUL;
+ break;
+ case OPCODE_NOISE1:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_NOISE1;
+ break;
+ case OPCODE_NOISE2:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_NOISE2;
+ break;
+ case OPCODE_NOISE3:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_NOISE3;
+ break;
+ case OPCODE_NOISE4:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_NOISE4;
+ break;
+ case OPCODE_NOP:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_NOP;
+ break;
+ case OPCODE_POW:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_POW;
+ break;
+ case OPCODE_RCP:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_RCP;
+ break;
+ case OPCODE_RET:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_RET;
+ break;
+ case OPCODE_RSQ:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_RSQ;
+ tgsi_util_set_full_src_register_sign_mode(
+ &fullinst->FullSrcRegisters[0],
+ TGSI_UTIL_SIGN_CLEAR );
+ break;
+ case OPCODE_SCS:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_SCS;
+ fulldst->DstRegister.WriteMask &= TGSI_WRITEMASK_XY;
+ break;
+ case OPCODE_SEQ:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_SEQ;
+ break;
+ case OPCODE_SGE:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_SGE;
+ break;
+ case OPCODE_SGT:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_SGT;
+ break;
+ case OPCODE_SIN:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_SIN;
+ break;
+ case OPCODE_SLE:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_SLE;
+ break;
+ case OPCODE_SLT:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_SLT;
+ break;
+ case OPCODE_SNE:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_SNE;
+ break;
+ case OPCODE_SUB:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_SUB;
+ break;
+ case OPCODE_SWZ:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_SWZ;
+ break;
+ case OPCODE_TEX:
+ /* ordinary texture lookup */
+ fullinst->Instruction.Opcode = TGSI_OPCODE_TEX;
+ fullinst->Instruction.NumSrcRegs = 2;
+ fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
+ fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
+ fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
+ break;
+ case OPCODE_TXB:
+ /* texture lookup with LOD bias */
+ fullinst->Instruction.Opcode = TGSI_OPCODE_TXB;
+ fullinst->Instruction.NumSrcRegs = 2;
+ fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
+ fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
+ fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
+ break;
+ case OPCODE_TXD:
+ /* texture lookup with explicit partial derivatives */
+ fullinst->Instruction.Opcode = TGSI_OPCODE_TXD;
+ fullinst->Instruction.NumSrcRegs = 4;
+ fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
+ /* src[0] = coord, src[1] = d[strq]/dx, src[2] = d[strq]/dy */
+ fullinst->FullSrcRegisters[3].SrcRegister.File = TGSI_FILE_SAMPLER;
+ fullinst->FullSrcRegisters[3].SrcRegister.Index = inst->TexSrcUnit;
+ break;
+ case OPCODE_TXL:
+ /* texture lookup with explicit LOD */
+ fullinst->Instruction.Opcode = TGSI_OPCODE_TXL;
+ fullinst->Instruction.NumSrcRegs = 2;
+ fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
+ fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
+ fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
+ break;
+ case OPCODE_TXP:
+ /* texture lookup with divide by Q component */
+ /* convert to TEX w/ special flag for division */
+ fullinst->Instruction.Opcode = TGSI_OPCODE_TEX;
+ fullinst->Instruction.NumSrcRegs = 2;
+ fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
+ fullinst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide = TGSI_EXTSWIZZLE_W;
+ fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
+ fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
+ break;
+ case OPCODE_XPD:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_XPD;
+ fulldst->DstRegister.WriteMask &= TGSI_WRITEMASK_XYZ;
+ break;
+ case OPCODE_END:
+ fullinst->Instruction.Opcode = TGSI_OPCODE_RET;
+ break;
+ default:
+ assert( 0 );
+ }
+}
+
+/**
+ * \param usage_mask bitfield of TGSI_WRITEMASK_{XYZW} tokens
+ */
+static struct tgsi_full_declaration
+make_input_decl(
+ GLuint index,
+ GLuint interpolate,
+ GLuint usage_mask,
+ GLboolean semantic_info,
+ GLuint semantic_name,
+ GLbitfield semantic_index )
+{
+ struct tgsi_full_declaration decl;
+
+ assert(semantic_name < TGSI_SEMANTIC_COUNT);
+
+ decl = tgsi_default_full_declaration();
+ decl.Declaration.File = TGSI_FILE_INPUT;
+ decl.Declaration.Declare = TGSI_DECLARE_RANGE;
+ decl.Declaration.UsageMask = usage_mask;
+ decl.Declaration.Semantic = semantic_info;
+ decl.Declaration.Interpolate = 1;
+ decl.u.DeclarationRange.First = index;
+ decl.u.DeclarationRange.Last = index;
+ if (semantic_info) {
+ decl.Semantic.SemanticName = semantic_name;
+ decl.Semantic.SemanticIndex = semantic_index;
+ }
+ decl.Interpolation.Interpolate = interpolate;
+
+ return decl;
+}
+
+/**
+ * \param usage_mask bitfield of TGSI_WRITEMASK_{XYZW} tokens
+ */
+static struct tgsi_full_declaration
+make_output_decl(
+ GLuint index,
+ GLuint semantic_name,
+ GLuint semantic_index,
+ GLbitfield usage_mask )
+{
+ struct tgsi_full_declaration decl;
+
+ assert(semantic_name < TGSI_SEMANTIC_COUNT);
+
+ decl = tgsi_default_full_declaration();
+ decl.Declaration.File = TGSI_FILE_OUTPUT;
+ decl.Declaration.Declare = TGSI_DECLARE_RANGE;
+ decl.Declaration.UsageMask = usage_mask;
+ decl.Declaration.Semantic = 1;
+ decl.u.DeclarationRange.First = index;
+ decl.u.DeclarationRange.Last = index;
+ decl.Semantic.SemanticName = semantic_name;
+ decl.Semantic.SemanticIndex = semantic_index;
+
+ return decl;
+}
+
+
+static struct tgsi_full_declaration
+make_temp_decl(
+ GLuint start_index,
+ GLuint end_index )
+{
+ struct tgsi_full_declaration decl;
+ decl = tgsi_default_full_declaration();
+ decl.Declaration.File = TGSI_FILE_TEMPORARY;
+ decl.Declaration.Declare = TGSI_DECLARE_RANGE;
+ decl.u.DeclarationRange.First = start_index;
+ decl.u.DeclarationRange.Last = end_index;
+ return decl;
+}
+
+
+/**
+ * Find the temporaries which are used in the given program.
+ */
+static void
+find_temporaries(const struct gl_program *program,
+ GLboolean tempsUsed[MAX_PROGRAM_TEMPS])
+{
+ GLuint i, j;
+
+ for (i = 0; i < MAX_PROGRAM_TEMPS; i++)
+ tempsUsed[i] = GL_FALSE;
+
+ for (i = 0; i < program->NumInstructions; i++) {
+ const struct prog_instruction *inst = program->Instructions + i;
+ const GLuint n = _mesa_num_inst_src_regs( inst->Opcode );
+ for (j = 0; j < n; j++) {
+ if (inst->SrcReg[j].File == PROGRAM_TEMPORARY)
+ tempsUsed[inst->SrcReg[j].Index] = GL_TRUE;
+ if (inst->DstReg.File == PROGRAM_TEMPORARY)
+ tempsUsed[inst->DstReg.Index] = GL_TRUE;
+ }
+ }
+}
+
+
+
+
+/**
+ * Translate Mesa program to TGSI format.
+ * \param program the program to translate
+ * \param numInputs number of input registers used
+ * \param inputMapping maps Mesa fragment program inputs to TGSI generic
+ * input indexes
+ * \param inputSemanticName the TGSI_SEMANTIC flag for each input
+ * \param inputSemanticIndex the semantic index (ex: which texcoord) for each input
+ * \param interpMode the TGSI_INTERPOLATE_LINEAR/PERSP mode for each input
+
+ * \param numOutputs number of output registers used
+ * \param outputMapping maps Mesa fragment program outputs to TGSI
+ * generic outputs
+ * \param outputSemanticName the TGSI_SEMANTIC flag for each output
+ * \param outputSemanticIndex the semantic index (ex: which texcoord) for each output
+ * \param tokens array to store translated tokens in
+ * \param maxTokens size of the tokens array
+ *
+ */
+GLboolean
+tgsi_translate_mesa_program(
+ uint procType,
+ const struct gl_program *program,
+ GLuint numInputs,
+ const GLuint inputMapping[],
+ const ubyte inputSemanticName[],
+ const ubyte inputSemanticIndex[],
+ const GLuint interpMode[],
+ GLuint numOutputs,
+ const GLuint outputMapping[],
+ const ubyte outputSemanticName[],
+ const ubyte outputSemanticIndex[],
+ struct tgsi_token *tokens,
+ GLuint maxTokens )
+{
+ GLuint i;
+ GLuint ti; /* token index */
+ struct tgsi_header *header;
+ struct tgsi_processor *processor;
+ struct tgsi_full_instruction fullinst;
+ GLuint preamble_size = 0;
+ GLuint immediates[1000];
+#if EMIT_IMMEDIATES
+ GLuint numImmediates = 0;
+#endif
+
+ assert(procType == TGSI_PROCESSOR_FRAGMENT ||
+ procType == TGSI_PROCESSOR_VERTEX);
+
+ *(struct tgsi_version *) &tokens[0] = tgsi_build_version();
+
+ header = (struct tgsi_header *) &tokens[1];
+ *header = tgsi_build_header();
+
+ processor = (struct tgsi_processor *) &tokens[2];
+ *processor = tgsi_build_processor( procType, header );
+
+ ti = 3;
+
+ /*
+ * Declare input attributes.
+ */
+ if (procType == TGSI_PROCESSOR_FRAGMENT) {
+ for (i = 0; i < numInputs; i++) {
+ struct tgsi_full_declaration fulldecl;
+ switch (inputSemanticName[i]) {
+ case TGSI_SEMANTIC_POSITION:
+ /* Fragment XY pos */
+ fulldecl = make_input_decl(i,
+ TGSI_INTERPOLATE_CONSTANT,
+ TGSI_WRITEMASK_XY,
+ GL_TRUE, TGSI_SEMANTIC_POSITION, 0 );
+ ti += tgsi_build_full_declaration(
+ &fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ /* Fragment ZW pos */
+ fulldecl = make_input_decl(i,
+ TGSI_INTERPOLATE_LINEAR,
+ TGSI_WRITEMASK_ZW,
+ GL_TRUE, TGSI_SEMANTIC_POSITION, 0 );
+ ti += tgsi_build_full_declaration(&fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ break;
+ default:
+ fulldecl = make_input_decl(i,
+ interpMode[i],
+ TGSI_WRITEMASK_XYZW,
+ GL_TRUE, inputSemanticName[i],
+ inputSemanticIndex[i]);
+ ti += tgsi_build_full_declaration(&fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ break;
+ }
+ }
+ }
+ else {
+ /* vertex prog */
+ for (i = 0; i < numInputs; i++) {
+ struct tgsi_full_declaration fulldecl;
+ fulldecl = make_input_decl(i,
+ TGSI_INTERPOLATE_ATTRIB,
+ TGSI_WRITEMASK_XYZW,
+ GL_FALSE, inputSemanticName[i],
+ inputSemanticIndex[i]);
+ ti += tgsi_build_full_declaration(&fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ }
+ }
+
+ /*
+ * Declare output attributes.
+ */
+ if (procType == TGSI_PROCESSOR_FRAGMENT) {
+ for (i = 0; i < numOutputs; i++) {
+ struct tgsi_full_declaration fulldecl;
+ switch (outputSemanticName[i]) {
+ case TGSI_SEMANTIC_POSITION:
+ fulldecl = make_output_decl(i,
+ TGSI_SEMANTIC_POSITION, 0, /* Z / Depth */
+ TGSI_WRITEMASK_Z );
+ break;
+ case TGSI_SEMANTIC_COLOR:
+ fulldecl = make_output_decl(i,
+ TGSI_SEMANTIC_COLOR, 0,
+ TGSI_WRITEMASK_XYZW );
+ break;
+ default:
+ abort();
+ }
+ ti += tgsi_build_full_declaration(&fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ }
+ }
+ else {
+ /* vertex prog */
+ for (i = 0; i < numOutputs; i++) {
+ struct tgsi_full_declaration fulldecl;
+ fulldecl = make_output_decl(i,
+ outputSemanticName[i],
+ outputSemanticIndex[i],
+ TGSI_WRITEMASK_XYZW );
+ ti += tgsi_build_full_declaration(&fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ }
+ }
+
+ /* temporary decls */
+ {
+ GLboolean tempsUsed[MAX_PROGRAM_TEMPS + 1];
+ GLboolean inside_range = GL_FALSE;
+ GLuint start_range;
+
+ find_temporaries(program, tempsUsed);
+ tempsUsed[MAX_PROGRAM_TEMPS] = GL_FALSE;
+ for (i = 0; i < MAX_PROGRAM_TEMPS + 1; i++) {
+ if (tempsUsed[i] && !inside_range) {
+ inside_range = GL_TRUE;
+ start_range = i;
+ }
+ else if (!tempsUsed[i] && inside_range) {
+ struct tgsi_full_declaration fulldecl;
+
+ inside_range = GL_FALSE;
+ fulldecl = make_temp_decl( start_range, i - 1 );
+ ti += tgsi_build_full_declaration(
+ &fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ }
+ }
+ }
+
+ /* immediates/literals */
+#if EMIT_IMMEDIATES
+ for (i = 0; i < program->Parameters->NumParameters; i++) {
+ if (program->Parameters->Parameters[i].Type == PROGRAM_CONSTANT) {
+ struct tgsi_full_immediate fullimm
+ = make_immediate(program->Parameters->ParameterValues[i],
+ program->Parameters->Parameters[i].Size);
+ ti += tgsi_build_full_immediate(&fullimm,
+ &tokens[ti],
+ header,
+ maxTokens - ti);
+ immediates[i] = numImmediates;
+ numImmediates++;
+ }
+ }
+#endif
+
+ for( i = 0; i < program->NumInstructions; i++ ) {
+ compile_instruction(
+ &program->Instructions[i],
+ &fullinst,
+ inputMapping,
+ outputMapping,
+ immediates,
+ preamble_size,
+ procType );
+
+ ti += tgsi_build_full_instruction(
+ &fullinst,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ }
+
+ return GL_TRUE;
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 03:03:38 +0000