1/* 2 * Copyright 2009 Nicolai Hähnle <nhaehnle@gmail.com> 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * on the rights to use, copy, modify, merge, publish, distribute, sub 8 * license, and/or sell copies of the Software, and to permit persons to whom 9 * the Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */ 22 23#include <stdio.h> 24#include "r300_tgsi_to_rc.h" 25 26#include "compiler/radeon_compiler.h" 27 28#include "tgsi/tgsi_info.h" 29#include "tgsi/tgsi_parse.h" 30#include "tgsi/tgsi_scan.h" 31#include "tgsi/tgsi_util.h" 32 33#include "util/compiler.h" 34 35static unsigned translate_opcode(unsigned opcode) 36{ 37 switch(opcode) { 38 case TGSI_OPCODE_ARL: return RC_OPCODE_ARL; 39 case TGSI_OPCODE_MOV: return RC_OPCODE_MOV; 40 case TGSI_OPCODE_LIT: return RC_OPCODE_LIT; 41 case TGSI_OPCODE_RCP: return RC_OPCODE_RCP; 42 case TGSI_OPCODE_RSQ: return RC_OPCODE_RSQ; 43 case TGSI_OPCODE_EXP: return RC_OPCODE_EXP; 44 case TGSI_OPCODE_LOG: return RC_OPCODE_LOG; 45 case TGSI_OPCODE_MUL: return RC_OPCODE_MUL; 46 case TGSI_OPCODE_ADD: return RC_OPCODE_ADD; 47 case TGSI_OPCODE_DP3: return RC_OPCODE_DP3; 48 case TGSI_OPCODE_DP4: return RC_OPCODE_DP4; 49 case TGSI_OPCODE_DST: return RC_OPCODE_DST; 50 case TGSI_OPCODE_MIN: return RC_OPCODE_MIN; 51 case TGSI_OPCODE_MAX: return RC_OPCODE_MAX; 52 case TGSI_OPCODE_SLT: return RC_OPCODE_SLT; 53 case TGSI_OPCODE_SGE: return RC_OPCODE_SGE; 54 case TGSI_OPCODE_MAD: return RC_OPCODE_MAD; 55 case TGSI_OPCODE_LRP: return RC_OPCODE_LRP; 56 case TGSI_OPCODE_FRC: return RC_OPCODE_FRC; 57 case TGSI_OPCODE_FLR: return RC_OPCODE_FLR; 58 case TGSI_OPCODE_ROUND: return RC_OPCODE_ROUND; 59 case TGSI_OPCODE_EX2: return RC_OPCODE_EX2; 60 case TGSI_OPCODE_LG2: return RC_OPCODE_LG2; 61 case TGSI_OPCODE_POW: return RC_OPCODE_POW; 62 case TGSI_OPCODE_COS: return RC_OPCODE_COS; 63 case TGSI_OPCODE_DDX: return RC_OPCODE_DDX; 64 case TGSI_OPCODE_DDY: return RC_OPCODE_DDY; 65 case TGSI_OPCODE_KILL: return RC_OPCODE_KILP; 66 /* case TGSI_OPCODE_PK2H: return RC_OPCODE_PK2H; */ 67 /* case TGSI_OPCODE_PK2US: return RC_OPCODE_PK2US; */ 68 /* case TGSI_OPCODE_PK4B: return RC_OPCODE_PK4B; */ 69 /* case TGSI_OPCODE_PK4UB: return RC_OPCODE_PK4UB; */ 70 case TGSI_OPCODE_SEQ: return RC_OPCODE_SEQ; 71 case TGSI_OPCODE_SGT: return RC_OPCODE_SGT; 72 case TGSI_OPCODE_SIN: return RC_OPCODE_SIN; 73 case TGSI_OPCODE_SLE: return RC_OPCODE_SLE; 74 case TGSI_OPCODE_SNE: return RC_OPCODE_SNE; 75 case TGSI_OPCODE_TEX: return RC_OPCODE_TEX; 76 case TGSI_OPCODE_TXD: return RC_OPCODE_TXD; 77 case TGSI_OPCODE_TXP: return RC_OPCODE_TXP; 78 /* case TGSI_OPCODE_UP2H: return RC_OPCODE_UP2H; */ 79 /* case TGSI_OPCODE_UP2US: return RC_OPCODE_UP2US; */ 80 /* case TGSI_OPCODE_UP4B: return RC_OPCODE_UP4B; */ 81 /* case TGSI_OPCODE_UP4UB: return RC_OPCODE_UP4UB; */ 82 case TGSI_OPCODE_ARR: return RC_OPCODE_ARR; 83 /* case TGSI_OPCODE_CAL: return RC_OPCODE_CAL; */ 84 /* case TGSI_OPCODE_RET: return RC_OPCODE_RET; */ 85 case TGSI_OPCODE_SSG: return RC_OPCODE_SSG; 86 case TGSI_OPCODE_CMP: return RC_OPCODE_CMP; 87 case TGSI_OPCODE_TXB: return RC_OPCODE_TXB; 88 /* case TGSI_OPCODE_DIV: return RC_OPCODE_DIV; */ 89 case TGSI_OPCODE_DP2: return RC_OPCODE_DP2; 90 case TGSI_OPCODE_TXL: return RC_OPCODE_TXL; 91 case TGSI_OPCODE_BRK: return RC_OPCODE_BRK; 92 case TGSI_OPCODE_IF: return RC_OPCODE_IF; 93 case TGSI_OPCODE_BGNLOOP: return RC_OPCODE_BGNLOOP; 94 case TGSI_OPCODE_ELSE: return RC_OPCODE_ELSE; 95 case TGSI_OPCODE_ENDIF: return RC_OPCODE_ENDIF; 96 case TGSI_OPCODE_ENDLOOP: return RC_OPCODE_ENDLOOP; 97 /* case TGSI_OPCODE_PUSHA: return RC_OPCODE_PUSHA; */ 98 /* case TGSI_OPCODE_POPA: return RC_OPCODE_POPA; */ 99 case TGSI_OPCODE_CEIL: return RC_OPCODE_CEIL; 100 /* case TGSI_OPCODE_I2F: return RC_OPCODE_I2F; */ 101 /* case TGSI_OPCODE_NOT: return RC_OPCODE_NOT; */ 102 case TGSI_OPCODE_TRUNC: return RC_OPCODE_TRUNC; 103 /* case TGSI_OPCODE_SHL: return RC_OPCODE_SHL; */ 104 /* case TGSI_OPCODE_ISHR: return RC_OPCODE_SHR; */ 105 /* case TGSI_OPCODE_AND: return RC_OPCODE_AND; */ 106 /* case TGSI_OPCODE_OR: return RC_OPCODE_OR; */ 107 /* case TGSI_OPCODE_MOD: return RC_OPCODE_MOD; */ 108 /* case TGSI_OPCODE_XOR: return RC_OPCODE_XOR; */ 109 /* case TGSI_OPCODE_TXF: return RC_OPCODE_TXF; */ 110 /* case TGSI_OPCODE_TXQ: return RC_OPCODE_TXQ; */ 111 case TGSI_OPCODE_CONT: return RC_OPCODE_CONT; 112 /* case TGSI_OPCODE_EMIT: return RC_OPCODE_EMIT; */ 113 /* case TGSI_OPCODE_ENDPRIM: return RC_OPCODE_ENDPRIM; */ 114 /* case TGSI_OPCODE_BGNLOOP2: return RC_OPCODE_BGNLOOP2; */ 115 /* case TGSI_OPCODE_BGNSUB: return RC_OPCODE_BGNSUB; */ 116 /* case TGSI_OPCODE_ENDLOOP2: return RC_OPCODE_ENDLOOP2; */ 117 /* case TGSI_OPCODE_ENDSUB: return RC_OPCODE_ENDSUB; */ 118 case TGSI_OPCODE_NOP: return RC_OPCODE_NOP; 119 case TGSI_OPCODE_KILL_IF: return RC_OPCODE_KIL; 120 } 121 122 fprintf(stderr, "r300: Unknown TGSI/RC opcode: %s\n", tgsi_get_opcode_name(opcode)); 123 return RC_OPCODE_ILLEGAL_OPCODE; 124} 125 126static unsigned translate_saturate(unsigned saturate) 127{ 128 return saturate ? RC_SATURATE_ZERO_ONE : RC_SATURATE_NONE; 129} 130 131static unsigned translate_register_file(unsigned file) 132{ 133 switch(file) { 134 case TGSI_FILE_CONSTANT: return RC_FILE_CONSTANT; 135 case TGSI_FILE_IMMEDIATE: return RC_FILE_CONSTANT; 136 case TGSI_FILE_INPUT: return RC_FILE_INPUT; 137 case TGSI_FILE_OUTPUT: return RC_FILE_OUTPUT; 138 default: 139 fprintf(stderr, "Unhandled register file: %i\n", file); 140 FALLTHROUGH; 141 case TGSI_FILE_TEMPORARY: return RC_FILE_TEMPORARY; 142 case TGSI_FILE_ADDRESS: return RC_FILE_ADDRESS; 143 } 144} 145 146static int translate_register_index( 147 struct tgsi_to_rc * ttr, 148 unsigned file, 149 int index) 150{ 151 if (file == TGSI_FILE_IMMEDIATE) 152 return ttr->immediate_offset + index; 153 154 return index; 155} 156 157static void transform_dstreg( 158 struct tgsi_to_rc * ttr, 159 struct rc_dst_register * dst, 160 struct tgsi_full_dst_register * src) 161{ 162 dst->File = translate_register_file(src->Register.File); 163 dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index); 164 dst->WriteMask = src->Register.WriteMask; 165 166 if (src->Register.Indirect) { 167 ttr->error = TRUE; 168 fprintf(stderr, "r300: Relative addressing of destination operands " 169 "is unsupported.\n"); 170 } 171} 172 173static void transform_srcreg( 174 struct tgsi_to_rc * ttr, 175 struct rc_src_register * dst, 176 struct tgsi_full_src_register * src) 177{ 178 unsigned i, j; 179 180 dst->File = translate_register_file(src->Register.File); 181 dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index); 182 dst->RelAddr = src->Register.Indirect; 183 dst->Swizzle = tgsi_util_get_full_src_register_swizzle(src, 0); 184 dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 1) << 3; 185 dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 2) << 6; 186 dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 3) << 9; 187 dst->Abs = src->Register.Absolute; 188 dst->Negate = src->Register.Negate ? RC_MASK_XYZW : 0; 189 190 if (src->Register.File == TGSI_FILE_IMMEDIATE) { 191 for (i = 0; i < ttr->imms_to_swizzle_count; i++) { 192 if (ttr->imms_to_swizzle[i].index == src->Register.Index) { 193 dst->File = RC_FILE_TEMPORARY; 194 dst->Index = 0; 195 dst->Swizzle = 0; 196 for (j = 0; j < 4; j++) { 197 dst->Swizzle |= GET_SWZ(ttr->imms_to_swizzle[i].swizzle, 198 tgsi_util_get_full_src_register_swizzle(src, j)) << (j * 3); 199 } 200 break; 201 } 202 } 203 } 204} 205 206static void transform_texture(struct rc_instruction * dst, struct tgsi_instruction_texture src, 207 uint32_t *shadowSamplers) 208{ 209 switch(src.Texture) { 210 case TGSI_TEXTURE_1D: 211 dst->U.I.TexSrcTarget = RC_TEXTURE_1D; 212 break; 213 case TGSI_TEXTURE_2D: 214 dst->U.I.TexSrcTarget = RC_TEXTURE_2D; 215 break; 216 case TGSI_TEXTURE_3D: 217 dst->U.I.TexSrcTarget = RC_TEXTURE_3D; 218 break; 219 case TGSI_TEXTURE_CUBE: 220 dst->U.I.TexSrcTarget = RC_TEXTURE_CUBE; 221 break; 222 case TGSI_TEXTURE_RECT: 223 dst->U.I.TexSrcTarget = RC_TEXTURE_RECT; 224 break; 225 case TGSI_TEXTURE_SHADOW1D: 226 dst->U.I.TexSrcTarget = RC_TEXTURE_1D; 227 dst->U.I.TexShadow = 1; 228 *shadowSamplers |= 1U << dst->U.I.TexSrcUnit; 229 break; 230 case TGSI_TEXTURE_SHADOW2D: 231 dst->U.I.TexSrcTarget = RC_TEXTURE_2D; 232 dst->U.I.TexShadow = 1; 233 *shadowSamplers |= 1U << dst->U.I.TexSrcUnit; 234 break; 235 case TGSI_TEXTURE_SHADOWRECT: 236 dst->U.I.TexSrcTarget = RC_TEXTURE_RECT; 237 dst->U.I.TexShadow = 1; 238 *shadowSamplers |= 1U << dst->U.I.TexSrcUnit; 239 break; 240 case TGSI_TEXTURE_1D_ARRAY: 241 dst->U.I.TexSrcTarget = RC_TEXTURE_1D_ARRAY; 242 break; 243 case TGSI_TEXTURE_2D_ARRAY: 244 dst->U.I.TexSrcTarget = RC_TEXTURE_2D_ARRAY; 245 break; 246 case TGSI_TEXTURE_SHADOW1D_ARRAY: 247 dst->U.I.TexSrcTarget = RC_TEXTURE_1D_ARRAY; 248 dst->U.I.TexShadow = 1; 249 *shadowSamplers |= 1U << dst->U.I.TexSrcUnit; 250 break; 251 case TGSI_TEXTURE_SHADOW2D_ARRAY: 252 dst->U.I.TexSrcTarget = RC_TEXTURE_2D_ARRAY; 253 dst->U.I.TexShadow = 1; 254 *shadowSamplers |= 1U << dst->U.I.TexSrcUnit; 255 break; 256 case TGSI_TEXTURE_SHADOWCUBE: 257 dst->U.I.TexSrcTarget = RC_TEXTURE_CUBE; 258 dst->U.I.TexShadow = 1; 259 *shadowSamplers |= 1U << dst->U.I.TexSrcUnit; 260 break; 261 } 262 dst->U.I.TexSwizzle = RC_SWIZZLE_XYZW; 263} 264 265static void transform_instruction(struct tgsi_to_rc * ttr, struct tgsi_full_instruction * src) 266{ 267 struct rc_instruction * dst; 268 int i; 269 270 dst = rc_insert_new_instruction(ttr->compiler, ttr->compiler->Program.Instructions.Prev); 271 dst->U.I.Opcode = translate_opcode(src->Instruction.Opcode); 272 dst->U.I.SaturateMode = translate_saturate(src->Instruction.Saturate); 273 274 if (src->Instruction.NumDstRegs) 275 transform_dstreg(ttr, &dst->U.I.DstReg, &src->Dst[0]); 276 277 for(i = 0; i < src->Instruction.NumSrcRegs; ++i) { 278 if (src->Src[i].Register.File == TGSI_FILE_SAMPLER) 279 dst->U.I.TexSrcUnit = src->Src[i].Register.Index; 280 else 281 transform_srcreg(ttr, &dst->U.I.SrcReg[i], &src->Src[i]); 282 } 283 284 /* Texturing. */ 285 if (src->Instruction.Texture) 286 transform_texture(dst, src->Texture, 287 &ttr->compiler->Program.ShadowSamplers); 288} 289 290static void handle_immediate(struct tgsi_to_rc * ttr, 291 struct tgsi_full_immediate * imm, 292 unsigned index) 293{ 294 struct rc_constant constant; 295 unsigned swizzle = 0; 296 boolean can_swizzle = TRUE; 297 unsigned i; 298 299 for (i = 0; i < 4; i++) { 300 if (imm->u[i].Float == 0.0f) { 301 swizzle |= RC_SWIZZLE_ZERO << (i * 3); 302 } else if (imm->u[i].Float == 0.5f && ttr->use_half_swizzles) { 303 swizzle |= RC_SWIZZLE_HALF << (i * 3); 304 } else if (imm->u[i].Float == 1.0f) { 305 swizzle |= RC_SWIZZLE_ONE << (i * 3); 306 } else { 307 can_swizzle = FALSE; 308 break; 309 } 310 } 311 312 if (can_swizzle) { 313 ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].index = index; 314 ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].swizzle = swizzle; 315 ttr->imms_to_swizzle_count++; 316 } else { 317 constant.Type = RC_CONSTANT_IMMEDIATE; 318 constant.Size = 4; 319 for(i = 0; i < 4; ++i) 320 constant.u.Immediate[i] = imm->u[i].Float; 321 rc_constants_add(&ttr->compiler->Program.Constants, &constant); 322 } 323} 324 325void r300_tgsi_to_rc(struct tgsi_to_rc * ttr, 326 const struct tgsi_token * tokens) 327{ 328 struct tgsi_full_instruction *inst; 329 struct tgsi_parse_context parser; 330 unsigned imm_index = 0; 331 int i; 332 333 ttr->error = FALSE; 334 335 /* Allocate constants placeholders. 336 * 337 * Note: What if declared constants are not contiguous? */ 338 for(i = 0; i <= ttr->info->file_max[TGSI_FILE_CONSTANT]; ++i) { 339 struct rc_constant constant; 340 memset(&constant, 0, sizeof(constant)); 341 constant.Type = RC_CONSTANT_EXTERNAL; 342 constant.Size = 4; 343 constant.u.External = i; 344 rc_constants_add(&ttr->compiler->Program.Constants, &constant); 345 } 346 347 ttr->immediate_offset = ttr->compiler->Program.Constants.Count; 348 349 ttr->imms_to_swizzle = malloc(ttr->info->immediate_count * sizeof(struct swizzled_imms)); 350 ttr->imms_to_swizzle_count = 0; 351 352 tgsi_parse_init(&parser, tokens); 353 354 while (!tgsi_parse_end_of_tokens(&parser)) { 355 tgsi_parse_token(&parser); 356 357 switch (parser.FullToken.Token.Type) { 358 case TGSI_TOKEN_TYPE_DECLARATION: 359 break; 360 case TGSI_TOKEN_TYPE_IMMEDIATE: 361 handle_immediate(ttr, &parser.FullToken.FullImmediate, imm_index); 362 imm_index++; 363 break; 364 case TGSI_TOKEN_TYPE_INSTRUCTION: 365 inst = &parser.FullToken.FullInstruction; 366 if (inst->Instruction.Opcode == TGSI_OPCODE_END) { 367 break; 368 } 369 370 transform_instruction(ttr, inst); 371 break; 372 } 373 } 374 375 tgsi_parse_free(&parser); 376 377 free(ttr->imms_to_swizzle); 378 379 rc_calculate_inputs_outputs(ttr->compiler); 380} 381