11d77d6caf647424f9c1c481145be0465e96c9e3eBrian/************************************************************************** 21d77d6caf647424f9c1c481145be0465e96c9e3eBrian * 31d77d6caf647424f9c1c481145be0465e96c9e3eBrian * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. 41d77d6caf647424f9c1c481145be0465e96c9e3eBrian * All Rights Reserved. 559a168d5c9b5f478e4e8bedcd8522e359e98987eBrian Paul * Copyright 2008 VMware, Inc. All rights Reserved. 61d77d6caf647424f9c1c481145be0465e96c9e3eBrian * 71d77d6caf647424f9c1c481145be0465e96c9e3eBrian * Permission is hereby granted, free of charge, to any person obtaining a 81d77d6caf647424f9c1c481145be0465e96c9e3eBrian * copy of this software and associated documentation files (the 91d77d6caf647424f9c1c481145be0465e96c9e3eBrian * "Software"), to deal in the Software without restriction, including 101d77d6caf647424f9c1c481145be0465e96c9e3eBrian * without limitation the rights to use, copy, modify, merge, publish, 111d77d6caf647424f9c1c481145be0465e96c9e3eBrian * distribute, sub license, and/or sell copies of the Software, and to 121d77d6caf647424f9c1c481145be0465e96c9e3eBrian * permit persons to whom the Software is furnished to do so, subject to 131d77d6caf647424f9c1c481145be0465e96c9e3eBrian * the following conditions: 141d77d6caf647424f9c1c481145be0465e96c9e3eBrian * 151d77d6caf647424f9c1c481145be0465e96c9e3eBrian * The above copyright notice and this permission notice (including the 161d77d6caf647424f9c1c481145be0465e96c9e3eBrian * next paragraph) shall be included in all copies or substantial portions 171d77d6caf647424f9c1c481145be0465e96c9e3eBrian * of the Software. 181d77d6caf647424f9c1c481145be0465e96c9e3eBrian * 191d77d6caf647424f9c1c481145be0465e96c9e3eBrian * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 201d77d6caf647424f9c1c481145be0465e96c9e3eBrian * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 211d77d6caf647424f9c1c481145be0465e96c9e3eBrian * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 221d77d6caf647424f9c1c481145be0465e96c9e3eBrian * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 231d77d6caf647424f9c1c481145be0465e96c9e3eBrian * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 241d77d6caf647424f9c1c481145be0465e96c9e3eBrian * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 251d77d6caf647424f9c1c481145be0465e96c9e3eBrian * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 261d77d6caf647424f9c1c481145be0465e96c9e3eBrian * 271d77d6caf647424f9c1c481145be0465e96c9e3eBrian **************************************************************************/ 281d77d6caf647424f9c1c481145be0465e96c9e3eBrian 291d77d6caf647424f9c1c481145be0465e96c9e3eBrian/** 301d77d6caf647424f9c1c481145be0465e96c9e3eBrian * TGSI program scan utility. 311d77d6caf647424f9c1c481145be0465e96c9e3eBrian * Used to determine which registers and instructions are used by a shader. 321d77d6caf647424f9c1c481145be0465e96c9e3eBrian * 331d77d6caf647424f9c1c481145be0465e96c9e3eBrian * Authors: Brian Paul 341d77d6caf647424f9c1c481145be0465e96c9e3eBrian */ 351d77d6caf647424f9c1c481145be0465e96c9e3eBrian 361d77d6caf647424f9c1c481145be0465e96c9e3eBrian 374f25420bdd834e81a3e22733304efc5261c2998aBrian Paul#include "util/u_math.h" 384f25420bdd834e81a3e22733304efc5261c2998aBrian Paul#include "tgsi/tgsi_parse.h" 39abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca#include "tgsi/tgsi_util.h" 404f25420bdd834e81a3e22733304efc5261c2998aBrian Paul#include "tgsi/tgsi_scan.h" 411d77d6caf647424f9c1c481145be0465e96c9e3eBrian 421d77d6caf647424f9c1c481145be0465e96c9e3eBrian 431d77d6caf647424f9c1c481145be0465e96c9e3eBrian 441d77d6caf647424f9c1c481145be0465e96c9e3eBrian 451d77d6caf647424f9c1c481145be0465e96c9e3eBrian/** 461907135235a684872706d1a28ea8e2b4e1b6e7d3Brian Paul * Scan the given TGSI shader to collect information such as number of 471907135235a684872706d1a28ea8e2b4e1b6e7d3Brian Paul * registers used, special instructions used, etc. 481907135235a684872706d1a28ea8e2b4e1b6e7d3Brian Paul * \return info the result of the scan 491d77d6caf647424f9c1c481145be0465e96c9e3eBrian */ 501d77d6caf647424f9c1c481145be0465e96c9e3eBrianvoid 511d77d6caf647424f9c1c481145be0465e96c9e3eBriantgsi_scan_shader(const struct tgsi_token *tokens, 521d77d6caf647424f9c1c481145be0465e96c9e3eBrian struct tgsi_shader_info *info) 531d77d6caf647424f9c1c481145be0465e96c9e3eBrian{ 543197ad5a56ee94773f974ac727b316c5adfe1b6fBrian uint procType, i; 551d77d6caf647424f9c1c481145be0465e96c9e3eBrian struct tgsi_parse_context parse; 561d77d6caf647424f9c1c481145be0465e96c9e3eBrian 571d77d6caf647424f9c1c481145be0465e96c9e3eBrian memset(info, 0, sizeof(*info)); 583197ad5a56ee94773f974ac727b316c5adfe1b6fBrian for (i = 0; i < TGSI_FILE_COUNT; i++) 593197ad5a56ee94773f974ac727b316c5adfe1b6fBrian info->file_max[i] = -1; 601d77d6caf647424f9c1c481145be0465e96c9e3eBrian 611d77d6caf647424f9c1c481145be0465e96c9e3eBrian /** 621d77d6caf647424f9c1c481145be0465e96c9e3eBrian ** Setup to begin parsing input shader 631d77d6caf647424f9c1c481145be0465e96c9e3eBrian **/ 641d77d6caf647424f9c1c481145be0465e96c9e3eBrian if (tgsi_parse_init( &parse, tokens ) != TGSI_PARSE_OK) { 651d77d6caf647424f9c1c481145be0465e96c9e3eBrian debug_printf("tgsi_parse_init() failed in tgsi_scan_shader()!\n"); 661d77d6caf647424f9c1c481145be0465e96c9e3eBrian return; 671d77d6caf647424f9c1c481145be0465e96c9e3eBrian } 681d77d6caf647424f9c1c481145be0465e96c9e3eBrian procType = parse.FullHeader.Processor.Processor; 691d77d6caf647424f9c1c481145be0465e96c9e3eBrian assert(procType == TGSI_PROCESSOR_FRAGMENT || 701d77d6caf647424f9c1c481145be0465e96c9e3eBrian procType == TGSI_PROCESSOR_VERTEX || 7163428372cadc73a7124f4e7d383eb86a0c7affd7Francisco Jerez procType == TGSI_PROCESSOR_GEOMETRY || 7263428372cadc73a7124f4e7d383eb86a0c7affd7Francisco Jerez procType == TGSI_PROCESSOR_COMPUTE); 731d77d6caf647424f9c1c481145be0465e96c9e3eBrian 741d77d6caf647424f9c1c481145be0465e96c9e3eBrian 751d77d6caf647424f9c1c481145be0465e96c9e3eBrian /** 761d77d6caf647424f9c1c481145be0465e96c9e3eBrian ** Loop over incoming program tokens/instructions 771d77d6caf647424f9c1c481145be0465e96c9e3eBrian */ 781d77d6caf647424f9c1c481145be0465e96c9e3eBrian while( !tgsi_parse_end_of_tokens( &parse ) ) { 791d77d6caf647424f9c1c481145be0465e96c9e3eBrian 801410b7bb509ef37c41043b173bc1047257483af0Brian info->num_tokens++; 811410b7bb509ef37c41043b173bc1047257483af0Brian 821d77d6caf647424f9c1c481145be0465e96c9e3eBrian tgsi_parse_token( &parse ); 831d77d6caf647424f9c1c481145be0465e96c9e3eBrian 841d77d6caf647424f9c1c481145be0465e96c9e3eBrian switch( parse.FullToken.Token.Type ) { 851d77d6caf647424f9c1c481145be0465e96c9e3eBrian case TGSI_TOKEN_TYPE_INSTRUCTION: 861d77d6caf647424f9c1c481145be0465e96c9e3eBrian { 8759a168d5c9b5f478e4e8bedcd8522e359e98987eBrian Paul const struct tgsi_full_instruction *fullinst 881d77d6caf647424f9c1c481145be0465e96c9e3eBrian = &parse.FullToken.FullInstruction; 89abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca uint i; 901d77d6caf647424f9c1c481145be0465e96c9e3eBrian 911d77d6caf647424f9c1c481145be0465e96c9e3eBrian assert(fullinst->Instruction.Opcode < TGSI_OPCODE_LAST); 921d77d6caf647424f9c1c481145be0465e96c9e3eBrian info->opcode_count[fullinst->Instruction.Opcode]++; 9359a168d5c9b5f478e4e8bedcd8522e359e98987eBrian Paul 94abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca for (i = 0; i < fullinst->Instruction.NumSrcRegs; i++) { 95abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca const struct tgsi_full_src_register *src = 96abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca &fullinst->Src[i]; 97abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca int ind = src->Register.Index; 98abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca 99abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca /* Mark which inputs are effectively used */ 100abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca if (src->Register.File == TGSI_FILE_INPUT) { 101abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca unsigned usage_mask; 102abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca usage_mask = tgsi_util_get_inst_usage_mask(fullinst, i); 103abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca if (src->Register.Indirect) { 104abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca for (ind = 0; ind < info->num_inputs; ++ind) { 105abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca info->input_usage_mask[ind] |= usage_mask; 106abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca } 107abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca } else { 108abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca assert(ind >= 0); 109abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca assert(ind < PIPE_MAX_SHADER_INPUTS); 110abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca info->input_usage_mask[ind] |= usage_mask; 111abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca } 112c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz 113c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz if (procType == TGSI_PROCESSOR_FRAGMENT && 114c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz src->Register.File == TGSI_FILE_INPUT && 115c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz info->reads_position && 116c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz src->Register.Index == 0 && 117c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz (src->Register.SwizzleX == TGSI_SWIZZLE_Z || 118c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz src->Register.SwizzleY == TGSI_SWIZZLE_Z || 119c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz src->Register.SwizzleZ == TGSI_SWIZZLE_Z || 120c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz src->Register.SwizzleW == TGSI_SWIZZLE_Z)) { 121c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz info->reads_z = TRUE; 122c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz } 123abe4f3d1aa68aec70d329447abc890b3eaaba9cbJosé Fonseca } 12485206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul 12585206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul /* check for indirect register reads */ 12685206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul if (src->Register.Indirect) { 12785206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul info->indirect_files |= (1 << src->Register.File); 12885206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul } 12985206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul } 13085206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul 13185206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul /* check for indirect register writes */ 13285206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul for (i = 0; i < fullinst->Instruction.NumDstRegs; i++) { 13385206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul const struct tgsi_full_dst_register *dst = &fullinst->Dst[i]; 13485206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul if (dst->Register.Indirect) { 13585206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul info->indirect_files |= (1 << dst->Register.File); 13685206e56a1c3400be47229d4a8c6a1cd7a2f476eBrian Paul } 13759a168d5c9b5f478e4e8bedcd8522e359e98987eBrian Paul } 1386080e567f0ca1fdcce21e76271d4239c33a50db3Brian Paul 1396080e567f0ca1fdcce21e76271d4239c33a50db3Brian Paul info->num_instructions++; 1401d77d6caf647424f9c1c481145be0465e96c9e3eBrian } 1411d77d6caf647424f9c1c481145be0465e96c9e3eBrian break; 1421d77d6caf647424f9c1c481145be0465e96c9e3eBrian 1431d77d6caf647424f9c1c481145be0465e96c9e3eBrian case TGSI_TOKEN_TYPE_DECLARATION: 1441d77d6caf647424f9c1c481145be0465e96c9e3eBrian { 14559a168d5c9b5f478e4e8bedcd8522e359e98987eBrian Paul const struct tgsi_full_declaration *fulldecl 1461d77d6caf647424f9c1c481145be0465e96c9e3eBrian = &parse.FullToken.FullDeclaration; 1471907135235a684872706d1a28ea8e2b4e1b6e7d3Brian Paul const uint file = fulldecl->Declaration.File; 14859a168d5c9b5f478e4e8bedcd8522e359e98987eBrian Paul uint reg; 149fe2b31e4a896167a33d267822b36eb2de0ceecbaKeith Whitwell for (reg = fulldecl->Range.First; 150fe2b31e4a896167a33d267822b36eb2de0ceecbaKeith Whitwell reg <= fulldecl->Range.Last; 15159a168d5c9b5f478e4e8bedcd8522e359e98987eBrian Paul reg++) { 1521410b7bb509ef37c41043b173bc1047257483af0Brian 1531410b7bb509ef37c41043b173bc1047257483af0Brian /* only first 32 regs will appear in this bitfield */ 15459a168d5c9b5f478e4e8bedcd8522e359e98987eBrian Paul info->file_mask[file] |= (1 << reg); 1551d77d6caf647424f9c1c481145be0465e96c9e3eBrian info->file_count[file]++; 156fc4cea08fe8320438c72de7f4af2d7091681dca3Keith Whitwell info->file_max[file] = MAX2(info->file_max[file], (int)reg); 1571d77d6caf647424f9c1c481145be0465e96c9e3eBrian 158b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul if (file == TGSI_FILE_INPUT) { 159763426a0256f0ab06f8af53947bd630f8600183aKeith Whitwell info->input_semantic_name[reg] = (ubyte)fulldecl->Semantic.Name; 160763426a0256f0ab06f8af53947bd630f8600183aKeith Whitwell info->input_semantic_index[reg] = (ubyte)fulldecl->Semantic.Index; 1611279923d72942ee201fcc6ad40d552143f651f03Francisco Jerez info->input_interpolate[reg] = (ubyte)fulldecl->Interp.Interpolate; 1621279923d72942ee201fcc6ad40d552143f651f03Francisco Jerez info->input_centroid[reg] = (ubyte)fulldecl->Interp.Centroid; 1631279923d72942ee201fcc6ad40d552143f651f03Francisco Jerez info->input_cylindrical_wrap[reg] = (ubyte)fulldecl->Interp.CylindricalWrap; 1641410b7bb509ef37c41043b173bc1047257483af0Brian info->num_inputs++; 165c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz 166c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz if (procType == TGSI_PROCESSOR_FRAGMENT && 167c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz fulldecl->Semantic.Name == TGSI_SEMANTIC_POSITION) 168c8c2fc9a7a029bb61520973e55fb3cec18f13e20Jakob Bornecrantz info->reads_position = TRUE; 1691410b7bb509ef37c41043b173bc1047257483af0Brian } 170b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul else if (file == TGSI_FILE_SYSTEM_VALUE) { 171b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul unsigned index = fulldecl->Range.First; 172b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul unsigned semName = fulldecl->Semantic.Name; 173b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul 174b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul info->system_value_semantic_name[index] = semName; 175b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul info->num_system_values = MAX2(info->num_system_values, 176b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul index + 1); 177b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul 178b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul /* 179b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul info->system_value_semantic_name[info->num_system_values++] = 180b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul fulldecl->Semantic.Name; 181b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul */ 182b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul 183b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul if (fulldecl->Semantic.Name == TGSI_SEMANTIC_INSTANCEID) { 184b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul info->uses_instanceid = TRUE; 185b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul } 186e7ccd703a28e14431b90f29540cec0bf67be1e0fChristoph Bumiller else if (fulldecl->Semantic.Name == TGSI_SEMANTIC_VERTEXID) { 187e7ccd703a28e14431b90f29540cec0bf67be1e0fChristoph Bumiller info->uses_vertexid = TRUE; 188e7ccd703a28e14431b90f29540cec0bf67be1e0fChristoph Bumiller } 189b550d8d76b42ef5ba5e8293dcc24220d5b683369Brian Paul } 1901907135235a684872706d1a28ea8e2b4e1b6e7d3Brian Paul else if (file == TGSI_FILE_OUTPUT) { 191763426a0256f0ab06f8af53947bd630f8600183aKeith Whitwell info->output_semantic_name[reg] = (ubyte)fulldecl->Semantic.Name; 192763426a0256f0ab06f8af53947bd630f8600183aKeith Whitwell info->output_semantic_index[reg] = (ubyte)fulldecl->Semantic.Index; 1931410b7bb509ef37c41043b173bc1047257483af0Brian info->num_outputs++; 1941410b7bb509ef37c41043b173bc1047257483af0Brian 195f7e3e46f72fffe4b83cd3f922173ff28e9ab9c7cDave Airlie if (procType == TGSI_PROCESSOR_VERTEX && 196f7e3e46f72fffe4b83cd3f922173ff28e9ab9c7cDave Airlie fulldecl->Semantic.Name == TGSI_SEMANTIC_CLIPDIST) { 197f7e3e46f72fffe4b83cd3f922173ff28e9ab9c7cDave Airlie info->num_written_clipdistance += util_bitcount(fulldecl->Declaration.UsageMask); 198f7e3e46f72fffe4b83cd3f922173ff28e9ab9c7cDave Airlie } 199ff5b0c72db20be099f9fc7dee22aeebbda75ab42Roland Scheidegger /* extra info for special outputs */ 200ff5b0c72db20be099f9fc7dee22aeebbda75ab42Roland Scheidegger if (procType == TGSI_PROCESSOR_FRAGMENT && 2014ecb2c105da590abf79421a06234b636cd1afcd6Dave Airlie fulldecl->Semantic.Name == TGSI_SEMANTIC_POSITION) 2024ecb2c105da590abf79421a06234b636cd1afcd6Dave Airlie info->writes_z = TRUE; 2034ecb2c105da590abf79421a06234b636cd1afcd6Dave Airlie if (procType == TGSI_PROCESSOR_FRAGMENT && 2044ecb2c105da590abf79421a06234b636cd1afcd6Dave Airlie fulldecl->Semantic.Name == TGSI_SEMANTIC_STENCIL) 2054ecb2c105da590abf79421a06234b636cd1afcd6Dave Airlie info->writes_stencil = TRUE; 206ff5b0c72db20be099f9fc7dee22aeebbda75ab42Roland Scheidegger if (procType == TGSI_PROCESSOR_VERTEX && 207ff5b0c72db20be099f9fc7dee22aeebbda75ab42Roland Scheidegger fulldecl->Semantic.Name == TGSI_SEMANTIC_EDGEFLAG) { 208ff5b0c72db20be099f9fc7dee22aeebbda75ab42Roland Scheidegger info->writes_edgeflag = TRUE; 209ff5b0c72db20be099f9fc7dee22aeebbda75ab42Roland Scheidegger } 2101d77d6caf647424f9c1c481145be0465e96c9e3eBrian } 211ff5b0c72db20be099f9fc7dee22aeebbda75ab42Roland Scheidegger 212ff5b0c72db20be099f9fc7dee22aeebbda75ab42Roland Scheidegger } 2131d77d6caf647424f9c1c481145be0465e96c9e3eBrian } 2141d77d6caf647424f9c1c481145be0465e96c9e3eBrian break; 2151d77d6caf647424f9c1c481145be0465e96c9e3eBrian 2161d77d6caf647424f9c1c481145be0465e96c9e3eBrian case TGSI_TOKEN_TYPE_IMMEDIATE: 217f5cca127b0ddcfe36b8dc98a5f405979e8afe673Keith Whitwell { 218f5cca127b0ddcfe36b8dc98a5f405979e8afe673Keith Whitwell uint reg = info->immediate_count++; 219f5cca127b0ddcfe36b8dc98a5f405979e8afe673Keith Whitwell uint file = TGSI_FILE_IMMEDIATE; 220f5cca127b0ddcfe36b8dc98a5f405979e8afe673Keith Whitwell 221f5cca127b0ddcfe36b8dc98a5f405979e8afe673Keith Whitwell info->file_mask[file] |= (1 << reg); 222f5cca127b0ddcfe36b8dc98a5f405979e8afe673Keith Whitwell info->file_count[file]++; 223f5cca127b0ddcfe36b8dc98a5f405979e8afe673Keith Whitwell info->file_max[file] = MAX2(info->file_max[file], (int)reg); 224f5cca127b0ddcfe36b8dc98a5f405979e8afe673Keith Whitwell } 2251d77d6caf647424f9c1c481145be0465e96c9e3eBrian break; 2262253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul 2273ff688ea299581e60caf5d6e1a464f68c717fe83Zack Rusin case TGSI_TOKEN_TYPE_PROPERTY: 2282253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul { 2292253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul const struct tgsi_full_property *fullprop 2302253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul = &parse.FullToken.FullProperty; 2313ff688ea299581e60caf5d6e1a464f68c717fe83Zack Rusin 2322253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul info->properties[info->num_properties].name = 2332253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul fullprop->Property.PropertyName; 2342253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul memcpy(info->properties[info->num_properties].data, 2352253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul fullprop->u, 8 * sizeof(unsigned));; 2363ff688ea299581e60caf5d6e1a464f68c717fe83Zack Rusin 2372253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul ++info->num_properties; 2382253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul } 2392253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul break; 2401d77d6caf647424f9c1c481145be0465e96c9e3eBrian 2411d77d6caf647424f9c1c481145be0465e96c9e3eBrian default: 2421d77d6caf647424f9c1c481145be0465e96c9e3eBrian assert( 0 ); 2431d77d6caf647424f9c1c481145be0465e96c9e3eBrian } 2441d77d6caf647424f9c1c481145be0465e96c9e3eBrian } 2451d77d6caf647424f9c1c481145be0465e96c9e3eBrian 246fb40c5a9c7dc91c03f80780e0a09be0cade98705Brian info->uses_kill = (info->opcode_count[TGSI_OPCODE_KIL] || 247fb40c5a9c7dc91c03f80780e0a09be0cade98705Brian info->opcode_count[TGSI_OPCODE_KILP]); 248fb40c5a9c7dc91c03f80780e0a09be0cade98705Brian 2492253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul /* extract simple properties */ 2502253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul for (i = 0; i < info->num_properties; ++i) { 2512253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul switch (info->properties[i].name) { 2522253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul case TGSI_PROPERTY_FS_COORD_ORIGIN: 2532253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul info->origin_lower_left = info->properties[i].data[0]; 2542253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul break; 2552253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul case TGSI_PROPERTY_FS_COORD_PIXEL_CENTER: 2562253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul info->pixel_center_integer = info->properties[i].data[0]; 2572253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul break; 2582253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul case TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS: 2592253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul info->color0_writes_all_cbufs = info->properties[i].data[0]; 2602253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul break; 2612253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul default: 2622253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul ; 2632253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul } 2642253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul } 2652253906da3c506bb5378a8f2fa203ed0c9021171Brian Paul 2661d77d6caf647424f9c1c481145be0465e96c9e3eBrian tgsi_parse_free (&parse); 2671d77d6caf647424f9c1c481145be0465e96c9e3eBrian} 2688223add3304451d5e75737a6d1be1739e4517943Brian Paul 2698223add3304451d5e75737a6d1be1739e4517943Brian Paul 2708223add3304451d5e75737a6d1be1739e4517943Brian Paul 2718223add3304451d5e75737a6d1be1739e4517943Brian Paul/** 2728223add3304451d5e75737a6d1be1739e4517943Brian Paul * Check if the given shader is a "passthrough" shader consisting of only 2738223add3304451d5e75737a6d1be1739e4517943Brian Paul * MOV instructions of the form: MOV OUT[n], IN[n] 2748223add3304451d5e75737a6d1be1739e4517943Brian Paul * 2758223add3304451d5e75737a6d1be1739e4517943Brian Paul */ 2768223add3304451d5e75737a6d1be1739e4517943Brian Paulboolean 2778223add3304451d5e75737a6d1be1739e4517943Brian Paultgsi_is_passthrough_shader(const struct tgsi_token *tokens) 2788223add3304451d5e75737a6d1be1739e4517943Brian Paul{ 2798223add3304451d5e75737a6d1be1739e4517943Brian Paul struct tgsi_parse_context parse; 2808223add3304451d5e75737a6d1be1739e4517943Brian Paul 2818223add3304451d5e75737a6d1be1739e4517943Brian Paul /** 2828223add3304451d5e75737a6d1be1739e4517943Brian Paul ** Setup to begin parsing input shader 2838223add3304451d5e75737a6d1be1739e4517943Brian Paul **/ 2848223add3304451d5e75737a6d1be1739e4517943Brian Paul if (tgsi_parse_init(&parse, tokens) != TGSI_PARSE_OK) { 2858223add3304451d5e75737a6d1be1739e4517943Brian Paul debug_printf("tgsi_parse_init() failed in tgsi_is_passthrough_shader()!\n"); 2868223add3304451d5e75737a6d1be1739e4517943Brian Paul return FALSE; 2878223add3304451d5e75737a6d1be1739e4517943Brian Paul } 2888223add3304451d5e75737a6d1be1739e4517943Brian Paul 2898223add3304451d5e75737a6d1be1739e4517943Brian Paul /** 2908223add3304451d5e75737a6d1be1739e4517943Brian Paul ** Loop over incoming program tokens/instructions 2918223add3304451d5e75737a6d1be1739e4517943Brian Paul */ 2928223add3304451d5e75737a6d1be1739e4517943Brian Paul while (!tgsi_parse_end_of_tokens(&parse)) { 2938223add3304451d5e75737a6d1be1739e4517943Brian Paul 2948223add3304451d5e75737a6d1be1739e4517943Brian Paul tgsi_parse_token(&parse); 2958223add3304451d5e75737a6d1be1739e4517943Brian Paul 2968223add3304451d5e75737a6d1be1739e4517943Brian Paul switch (parse.FullToken.Token.Type) { 2978223add3304451d5e75737a6d1be1739e4517943Brian Paul case TGSI_TOKEN_TYPE_INSTRUCTION: 2988223add3304451d5e75737a6d1be1739e4517943Brian Paul { 2998223add3304451d5e75737a6d1be1739e4517943Brian Paul struct tgsi_full_instruction *fullinst = 3008223add3304451d5e75737a6d1be1739e4517943Brian Paul &parse.FullToken.FullInstruction; 3018223add3304451d5e75737a6d1be1739e4517943Brian Paul const struct tgsi_full_src_register *src = 3027d6c8f980d1e23ad6f557d650e89c715861a3b0cKeith Whitwell &fullinst->Src[0]; 3038223add3304451d5e75737a6d1be1739e4517943Brian Paul const struct tgsi_full_dst_register *dst = 3047d6c8f980d1e23ad6f557d650e89c715861a3b0cKeith Whitwell &fullinst->Dst[0]; 3058223add3304451d5e75737a6d1be1739e4517943Brian Paul 3068223add3304451d5e75737a6d1be1739e4517943Brian Paul /* Do a whole bunch of checks for a simple move */ 3078223add3304451d5e75737a6d1be1739e4517943Brian Paul if (fullinst->Instruction.Opcode != TGSI_OPCODE_MOV || 3084a531fb46a6ab544666c5eeb362f3622bd44aaffAlan Hourihane (src->Register.File != TGSI_FILE_INPUT && 3094a531fb46a6ab544666c5eeb362f3622bd44aaffAlan Hourihane src->Register.File != TGSI_FILE_SYSTEM_VALUE) || 3105b0824dfe5eaf59fa87134e7482b3d147b262901Keith Whitwell dst->Register.File != TGSI_FILE_OUTPUT || 31191a4e6d53f83c45c1da9240b6325011d96b61386Keith Whitwell src->Register.Index != dst->Register.Index || 3128223add3304451d5e75737a6d1be1739e4517943Brian Paul 31391a4e6d53f83c45c1da9240b6325011d96b61386Keith Whitwell src->Register.Negate || 31491a4e6d53f83c45c1da9240b6325011d96b61386Keith Whitwell src->Register.Absolute || 3158223add3304451d5e75737a6d1be1739e4517943Brian Paul 31691a4e6d53f83c45c1da9240b6325011d96b61386Keith Whitwell src->Register.SwizzleX != TGSI_SWIZZLE_X || 31791a4e6d53f83c45c1da9240b6325011d96b61386Keith Whitwell src->Register.SwizzleY != TGSI_SWIZZLE_Y || 31891a4e6d53f83c45c1da9240b6325011d96b61386Keith Whitwell src->Register.SwizzleZ != TGSI_SWIZZLE_Z || 31991a4e6d53f83c45c1da9240b6325011d96b61386Keith Whitwell src->Register.SwizzleW != TGSI_SWIZZLE_W || 3208223add3304451d5e75737a6d1be1739e4517943Brian Paul 3215b0824dfe5eaf59fa87134e7482b3d147b262901Keith Whitwell dst->Register.WriteMask != TGSI_WRITEMASK_XYZW) 3228223add3304451d5e75737a6d1be1739e4517943Brian Paul { 3238223add3304451d5e75737a6d1be1739e4517943Brian Paul tgsi_parse_free(&parse); 3248223add3304451d5e75737a6d1be1739e4517943Brian Paul return FALSE; 3258223add3304451d5e75737a6d1be1739e4517943Brian Paul } 3268223add3304451d5e75737a6d1be1739e4517943Brian Paul } 3278223add3304451d5e75737a6d1be1739e4517943Brian Paul break; 3288223add3304451d5e75737a6d1be1739e4517943Brian Paul 3298223add3304451d5e75737a6d1be1739e4517943Brian Paul case TGSI_TOKEN_TYPE_DECLARATION: 3308223add3304451d5e75737a6d1be1739e4517943Brian Paul /* fall-through */ 3318223add3304451d5e75737a6d1be1739e4517943Brian Paul case TGSI_TOKEN_TYPE_IMMEDIATE: 3328223add3304451d5e75737a6d1be1739e4517943Brian Paul /* fall-through */ 3333ff688ea299581e60caf5d6e1a464f68c717fe83Zack Rusin case TGSI_TOKEN_TYPE_PROPERTY: 3343ff688ea299581e60caf5d6e1a464f68c717fe83Zack Rusin /* fall-through */ 3358223add3304451d5e75737a6d1be1739e4517943Brian Paul default: 3368223add3304451d5e75737a6d1be1739e4517943Brian Paul ; /* no-op */ 3378223add3304451d5e75737a6d1be1739e4517943Brian Paul } 3388223add3304451d5e75737a6d1be1739e4517943Brian Paul } 3398223add3304451d5e75737a6d1be1739e4517943Brian Paul 3408223add3304451d5e75737a6d1be1739e4517943Brian Paul tgsi_parse_free(&parse); 3418223add3304451d5e75737a6d1be1739e4517943Brian Paul 3428223add3304451d5e75737a6d1be1739e4517943Brian Paul /* if we get here, it's a pass-through shader */ 3438223add3304451d5e75737a6d1be1739e4517943Brian Paul return TRUE; 3448223add3304451d5e75737a6d1be1739e4517943Brian Paul} 345