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 33static unsigned translate_opcode(unsigned opcode) 34{ 35 switch(opcode) { 36 case TGSI_OPCODE_ARL: return RC_OPCODE_ARL; 37 case TGSI_OPCODE_MOV: return RC_OPCODE_MOV; 38 case TGSI_OPCODE_LIT: return RC_OPCODE_LIT; 39 case TGSI_OPCODE_RCP: return RC_OPCODE_RCP; 40 case TGSI_OPCODE_RSQ: return RC_OPCODE_RSQ; 41 case TGSI_OPCODE_EXP: return RC_OPCODE_EXP; 42 case TGSI_OPCODE_LOG: return RC_OPCODE_LOG; 43 case TGSI_OPCODE_MUL: return RC_OPCODE_MUL; 44 case TGSI_OPCODE_ADD: return RC_OPCODE_ADD; 45 case TGSI_OPCODE_DP3: return RC_OPCODE_DP3; 46 case TGSI_OPCODE_DP4: return RC_OPCODE_DP4; 47 case TGSI_OPCODE_DST: return RC_OPCODE_DST; 48 case TGSI_OPCODE_MIN: return RC_OPCODE_MIN; 49 case TGSI_OPCODE_MAX: return RC_OPCODE_MAX; 50 case TGSI_OPCODE_SLT: return RC_OPCODE_SLT; 51 case TGSI_OPCODE_SGE: return RC_OPCODE_SGE; 52 case TGSI_OPCODE_MAD: return RC_OPCODE_MAD; 53 case TGSI_OPCODE_LRP: return RC_OPCODE_LRP; 54 case TGSI_OPCODE_FRC: return RC_OPCODE_FRC; 55 case TGSI_OPCODE_FLR: return RC_OPCODE_FLR; 56 case TGSI_OPCODE_ROUND: return RC_OPCODE_ROUND; 57 case TGSI_OPCODE_EX2: return RC_OPCODE_EX2; 58 case TGSI_OPCODE_LG2: return RC_OPCODE_LG2; 59 case TGSI_OPCODE_POW: return RC_OPCODE_POW; 60 case TGSI_OPCODE_COS: return RC_OPCODE_COS; 61 case TGSI_OPCODE_DDX: return RC_OPCODE_DDX; 62 case TGSI_OPCODE_DDY: return RC_OPCODE_DDY; 63 case TGSI_OPCODE_KILL: return RC_OPCODE_KILP; 64 /* case TGSI_OPCODE_PK2H: return RC_OPCODE_PK2H; */ 65 /* case TGSI_OPCODE_PK2US: return RC_OPCODE_PK2US; */ 66 /* case TGSI_OPCODE_PK4B: return RC_OPCODE_PK4B; */ 67 /* case TGSI_OPCODE_PK4UB: return RC_OPCODE_PK4UB; */ 68 case TGSI_OPCODE_SEQ: return RC_OPCODE_SEQ; 69 case TGSI_OPCODE_SGT: return RC_OPCODE_SGT; 70 case TGSI_OPCODE_SIN: return RC_OPCODE_SIN; 71 case TGSI_OPCODE_SLE: return RC_OPCODE_SLE; 72 case TGSI_OPCODE_SNE: return RC_OPCODE_SNE; 73 case TGSI_OPCODE_TEX: return RC_OPCODE_TEX; 74 case TGSI_OPCODE_TXD: return RC_OPCODE_TXD; 75 case TGSI_OPCODE_TXP: return RC_OPCODE_TXP; 76 /* case TGSI_OPCODE_UP2H: return RC_OPCODE_UP2H; */ 77 /* case TGSI_OPCODE_UP2US: return RC_OPCODE_UP2US; */ 78 /* case TGSI_OPCODE_UP4B: return RC_OPCODE_UP4B; */ 79 /* case TGSI_OPCODE_UP4UB: return RC_OPCODE_UP4UB; */ 80 case TGSI_OPCODE_ARR: return RC_OPCODE_ARR; 81 /* case TGSI_OPCODE_CAL: return RC_OPCODE_CAL; */ 82 /* case TGSI_OPCODE_RET: return RC_OPCODE_RET; */ 83 case TGSI_OPCODE_SSG: return RC_OPCODE_SSG; 84 case TGSI_OPCODE_CMP: return RC_OPCODE_CMP; 85 case TGSI_OPCODE_TXB: return RC_OPCODE_TXB; 86 /* case TGSI_OPCODE_DIV: return RC_OPCODE_DIV; */ 87 case TGSI_OPCODE_DP2: return RC_OPCODE_DP2; 88 case TGSI_OPCODE_TXL: return RC_OPCODE_TXL; 89 case TGSI_OPCODE_BRK: return RC_OPCODE_BRK; 90 case TGSI_OPCODE_IF: return RC_OPCODE_IF; 91 case TGSI_OPCODE_BGNLOOP: return RC_OPCODE_BGNLOOP; 92 case TGSI_OPCODE_ELSE: return RC_OPCODE_ELSE; 93 case TGSI_OPCODE_ENDIF: return RC_OPCODE_ENDIF; 94 case TGSI_OPCODE_ENDLOOP: return RC_OPCODE_ENDLOOP; 95 /* case TGSI_OPCODE_PUSHA: return RC_OPCODE_PUSHA; */ 96 /* case TGSI_OPCODE_POPA: return RC_OPCODE_POPA; */ 97 case TGSI_OPCODE_CEIL: return RC_OPCODE_CEIL; 98 /* case TGSI_OPCODE_I2F: return RC_OPCODE_I2F; */ 99 /* case TGSI_OPCODE_NOT: return RC_OPCODE_NOT; */ 100 case TGSI_OPCODE_TRUNC: return RC_OPCODE_TRUNC; 101 /* case TGSI_OPCODE_SHL: return RC_OPCODE_SHL; */ 102 /* case TGSI_OPCODE_ISHR: return RC_OPCODE_SHR; */ 103 /* case TGSI_OPCODE_AND: return RC_OPCODE_AND; */ 104 /* case TGSI_OPCODE_OR: return RC_OPCODE_OR; */ 105 /* case TGSI_OPCODE_MOD: return RC_OPCODE_MOD; */ 106 /* case TGSI_OPCODE_XOR: return RC_OPCODE_XOR; */ 107 /* case TGSI_OPCODE_TXF: return RC_OPCODE_TXF; */ 108 /* case TGSI_OPCODE_TXQ: return RC_OPCODE_TXQ; */ 109 case TGSI_OPCODE_CONT: return RC_OPCODE_CONT; 110 /* case TGSI_OPCODE_EMIT: return RC_OPCODE_EMIT; */ 111 /* case TGSI_OPCODE_ENDPRIM: return RC_OPCODE_ENDPRIM; */ 112 /* case TGSI_OPCODE_BGNLOOP2: return RC_OPCODE_BGNLOOP2; */ 113 /* case TGSI_OPCODE_BGNSUB: return RC_OPCODE_BGNSUB; */ 114 /* case TGSI_OPCODE_ENDLOOP2: return RC_OPCODE_ENDLOOP2; */ 115 /* case TGSI_OPCODE_ENDSUB: return RC_OPCODE_ENDSUB; */ 116 case TGSI_OPCODE_NOP: return RC_OPCODE_NOP; 117 case TGSI_OPCODE_KILL_IF: return RC_OPCODE_KIL; 118 } 119 120 fprintf(stderr, "r300: Unknown TGSI/RC opcode: %s\n", tgsi_get_opcode_name(opcode)); 121 return RC_OPCODE_ILLEGAL_OPCODE; 122} 123 124static unsigned translate_saturate(unsigned saturate) 125{ 126 return saturate ? RC_SATURATE_ZERO_ONE : RC_SATURATE_NONE; 127} 128 129static unsigned translate_register_file(unsigned file) 130{ 131 switch(file) { 132 case TGSI_FILE_CONSTANT: return RC_FILE_CONSTANT; 133 case TGSI_FILE_IMMEDIATE: return RC_FILE_CONSTANT; 134 case TGSI_FILE_INPUT: return RC_FILE_INPUT; 135 case TGSI_FILE_OUTPUT: return RC_FILE_OUTPUT; 136 default: 137 fprintf(stderr, "Unhandled register file: %i\n", file); 138 /* fall-through */ 139 case TGSI_FILE_TEMPORARY: return RC_FILE_TEMPORARY; 140 case TGSI_FILE_ADDRESS: return RC_FILE_ADDRESS; 141 } 142} 143 144static int translate_register_index( 145 struct tgsi_to_rc * ttr, 146 unsigned file, 147 int index) 148{ 149 if (file == TGSI_FILE_IMMEDIATE) 150 return ttr->immediate_offset + index; 151 152 return index; 153} 154 155static void transform_dstreg( 156 struct tgsi_to_rc * ttr, 157 struct rc_dst_register * dst, 158 struct tgsi_full_dst_register * src) 159{ 160 dst->File = translate_register_file(src->Register.File); 161 dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index); 162 dst->WriteMask = src->Register.WriteMask; 163 164 if (src->Register.Indirect) { 165 ttr->error = TRUE; 166 fprintf(stderr, "r300: Relative addressing of destination operands " 167 "is unsupported.\n"); 168 } 169} 170 171static void transform_srcreg( 172 struct tgsi_to_rc * ttr, 173 struct rc_src_register * dst, 174 struct tgsi_full_src_register * src) 175{ 176 unsigned i, j; 177 178 dst->File = translate_register_file(src->Register.File); 179 dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index); 180 dst->RelAddr = src->Register.Indirect; 181 dst->Swizzle = tgsi_util_get_full_src_register_swizzle(src, 0); 182 dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 1) << 3; 183 dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 2) << 6; 184 dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 3) << 9; 185 dst->Abs = src->Register.Absolute; 186 dst->Negate = src->Register.Negate ? RC_MASK_XYZW : 0; 187 188 if (src->Register.File == TGSI_FILE_IMMEDIATE) { 189 for (i = 0; i < ttr->imms_to_swizzle_count; i++) { 190 if (ttr->imms_to_swizzle[i].index == src->Register.Index) { 191 dst->File = RC_FILE_TEMPORARY; 192 dst->Index = 0; 193 dst->Swizzle = 0; 194 for (j = 0; j < 4; j++) { 195 dst->Swizzle |= GET_SWZ(ttr->imms_to_swizzle[i].swizzle, 196 tgsi_util_get_full_src_register_swizzle(src, j)) << (j * 3); 197 } 198 break; 199 } 200 } 201 } 202} 203 204static void transform_texture(struct rc_instruction * dst, struct tgsi_instruction_texture src, 205 uint32_t *shadowSamplers) 206{ 207 switch(src.Texture) { 208 case TGSI_TEXTURE_1D: 209 dst->U.I.TexSrcTarget = RC_TEXTURE_1D; 210 break; 211 case TGSI_TEXTURE_2D: 212 dst->U.I.TexSrcTarget = RC_TEXTURE_2D; 213 break; 214 case TGSI_TEXTURE_3D: 215 dst->U.I.TexSrcTarget = RC_TEXTURE_3D; 216 break; 217 case TGSI_TEXTURE_CUBE: 218 dst->U.I.TexSrcTarget = RC_TEXTURE_CUBE; 219 break; 220 case TGSI_TEXTURE_RECT: 221 dst->U.I.TexSrcTarget = RC_TEXTURE_RECT; 222 break; 223 case TGSI_TEXTURE_SHADOW1D: 224 dst->U.I.TexSrcTarget = RC_TEXTURE_1D; 225 dst->U.I.TexShadow = 1; 226 *shadowSamplers |= 1 << dst->U.I.TexSrcUnit; 227 break; 228 case TGSI_TEXTURE_SHADOW2D: 229 dst->U.I.TexSrcTarget = RC_TEXTURE_2D; 230 dst->U.I.TexShadow = 1; 231 *shadowSamplers |= 1 << dst->U.I.TexSrcUnit; 232 break; 233 case TGSI_TEXTURE_SHADOWRECT: 234 dst->U.I.TexSrcTarget = RC_TEXTURE_RECT; 235 dst->U.I.TexShadow = 1; 236 *shadowSamplers |= 1 << dst->U.I.TexSrcUnit; 237 break; 238 } 239 dst->U.I.TexSwizzle = RC_SWIZZLE_XYZW; 240} 241 242static void transform_instruction(struct tgsi_to_rc * ttr, struct tgsi_full_instruction * src) 243{ 244 struct rc_instruction * dst; 245 int i; 246 247 dst = rc_insert_new_instruction(ttr->compiler, ttr->compiler->Program.Instructions.Prev); 248 dst->U.I.Opcode = translate_opcode(src->Instruction.Opcode); 249 dst->U.I.SaturateMode = translate_saturate(src->Instruction.Saturate); 250 251 if (src->Instruction.NumDstRegs) 252 transform_dstreg(ttr, &dst->U.I.DstReg, &src->Dst[0]); 253 254 for(i = 0; i < src->Instruction.NumSrcRegs; ++i) { 255 if (src->Src[i].Register.File == TGSI_FILE_SAMPLER) 256 dst->U.I.TexSrcUnit = src->Src[i].Register.Index; 257 else 258 transform_srcreg(ttr, &dst->U.I.SrcReg[i], &src->Src[i]); 259 } 260 261 /* Texturing. */ 262 if (src->Instruction.Texture) 263 transform_texture(dst, src->Texture, 264 &ttr->compiler->Program.ShadowSamplers); 265} 266 267static void handle_immediate(struct tgsi_to_rc * ttr, 268 struct tgsi_full_immediate * imm, 269 unsigned index) 270{ 271 struct rc_constant constant; 272 unsigned swizzle = 0; 273 boolean can_swizzle = TRUE; 274 unsigned i; 275 276 for (i = 0; i < 4; i++) { 277 if (imm->u[i].Float == 0.0f) { 278 swizzle |= RC_SWIZZLE_ZERO << (i * 3); 279 } else if (imm->u[i].Float == 0.5f && ttr->use_half_swizzles) { 280 swizzle |= RC_SWIZZLE_HALF << (i * 3); 281 } else if (imm->u[i].Float == 1.0f) { 282 swizzle |= RC_SWIZZLE_ONE << (i * 3); 283 } else { 284 can_swizzle = FALSE; 285 break; 286 } 287 } 288 289 if (can_swizzle) { 290 ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].index = index; 291 ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].swizzle = swizzle; 292 ttr->imms_to_swizzle_count++; 293 } else { 294 constant.Type = RC_CONSTANT_IMMEDIATE; 295 constant.Size = 4; 296 for(i = 0; i < 4; ++i) 297 constant.u.Immediate[i] = imm->u[i].Float; 298 rc_constants_add(&ttr->compiler->Program.Constants, &constant); 299 } 300} 301 302void r300_tgsi_to_rc(struct tgsi_to_rc * ttr, 303 const struct tgsi_token * tokens) 304{ 305 struct tgsi_full_instruction *inst; 306 struct tgsi_parse_context parser; 307 unsigned imm_index = 0; 308 int i; 309 310 ttr->error = FALSE; 311 312 /* Allocate constants placeholders. 313 * 314 * Note: What if declared constants are not contiguous? */ 315 for(i = 0; i <= ttr->info->file_max[TGSI_FILE_CONSTANT]; ++i) { 316 struct rc_constant constant; 317 memset(&constant, 0, sizeof(constant)); 318 constant.Type = RC_CONSTANT_EXTERNAL; 319 constant.Size = 4; 320 constant.u.External = i; 321 rc_constants_add(&ttr->compiler->Program.Constants, &constant); 322 } 323 324 ttr->immediate_offset = ttr->compiler->Program.Constants.Count; 325 326 ttr->imms_to_swizzle = malloc(ttr->info->immediate_count * sizeof(struct swizzled_imms)); 327 ttr->imms_to_swizzle_count = 0; 328 329 tgsi_parse_init(&parser, tokens); 330 331 while (!tgsi_parse_end_of_tokens(&parser)) { 332 tgsi_parse_token(&parser); 333 334 switch (parser.FullToken.Token.Type) { 335 case TGSI_TOKEN_TYPE_DECLARATION: 336 break; 337 case TGSI_TOKEN_TYPE_IMMEDIATE: 338 handle_immediate(ttr, &parser.FullToken.FullImmediate, imm_index); 339 imm_index++; 340 break; 341 case TGSI_TOKEN_TYPE_INSTRUCTION: 342 inst = &parser.FullToken.FullInstruction; 343 if (inst->Instruction.Opcode == TGSI_OPCODE_END) { 344 break; 345 } 346 347 transform_instruction(ttr, inst); 348 break; 349 } 350 } 351 352 tgsi_parse_free(&parser); 353 354 free(ttr->imms_to_swizzle); 355 356 rc_calculate_inputs_outputs(ttr->compiler); 357} 358