1 /* 2 * Copyright 2009 Nicolai Hhnle <nhaehnle (at) 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 static 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_DP2A: return RC_OPCODE_DP2A; */ 55 case TGSI_OPCODE_FRC: return RC_OPCODE_FRC; 56 case TGSI_OPCODE_CLAMP: return RC_OPCODE_CLAMP; 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_XPD: return RC_OPCODE_XPD; 63 case TGSI_OPCODE_DPH: return RC_OPCODE_DPH; 64 case TGSI_OPCODE_COS: return RC_OPCODE_COS; 65 case TGSI_OPCODE_DDX: return RC_OPCODE_DDX; 66 case TGSI_OPCODE_DDY: return RC_OPCODE_DDY; 67 case TGSI_OPCODE_KILL: return RC_OPCODE_KILP; 68 /* case TGSI_OPCODE_PK2H: return RC_OPCODE_PK2H; */ 69 /* case TGSI_OPCODE_PK2US: return RC_OPCODE_PK2US; */ 70 /* case TGSI_OPCODE_PK4B: return RC_OPCODE_PK4B; */ 71 /* case TGSI_OPCODE_PK4UB: return RC_OPCODE_PK4UB; */ 72 case TGSI_OPCODE_SEQ: return RC_OPCODE_SEQ; 73 case TGSI_OPCODE_SGT: return RC_OPCODE_SGT; 74 case TGSI_OPCODE_SIN: return RC_OPCODE_SIN; 75 case TGSI_OPCODE_SLE: return RC_OPCODE_SLE; 76 case TGSI_OPCODE_SNE: return RC_OPCODE_SNE; 77 case TGSI_OPCODE_TEX: return RC_OPCODE_TEX; 78 case TGSI_OPCODE_TXD: return RC_OPCODE_TXD; 79 case TGSI_OPCODE_TXP: return RC_OPCODE_TXP; 80 /* case TGSI_OPCODE_UP2H: return RC_OPCODE_UP2H; */ 81 /* case TGSI_OPCODE_UP2US: return RC_OPCODE_UP2US; */ 82 /* case TGSI_OPCODE_UP4B: return RC_OPCODE_UP4B; */ 83 /* case TGSI_OPCODE_UP4UB: return RC_OPCODE_UP4UB; */ 84 case TGSI_OPCODE_ARR: return RC_OPCODE_ARR; 85 /* case TGSI_OPCODE_CAL: return RC_OPCODE_CAL; */ 86 /* case TGSI_OPCODE_RET: return RC_OPCODE_RET; */ 87 case TGSI_OPCODE_SSG: return RC_OPCODE_SSG; 88 case TGSI_OPCODE_CMP: return RC_OPCODE_CMP; 89 case TGSI_OPCODE_SCS: return RC_OPCODE_SCS; 90 case TGSI_OPCODE_TXB: return RC_OPCODE_TXB; 91 /* case TGSI_OPCODE_DIV: return RC_OPCODE_DIV; */ 92 case TGSI_OPCODE_DP2: return RC_OPCODE_DP2; 93 case TGSI_OPCODE_TXL: return RC_OPCODE_TXL; 94 case TGSI_OPCODE_BRK: return RC_OPCODE_BRK; 95 case TGSI_OPCODE_IF: return RC_OPCODE_IF; 96 case TGSI_OPCODE_BGNLOOP: return RC_OPCODE_BGNLOOP; 97 case TGSI_OPCODE_ELSE: return RC_OPCODE_ELSE; 98 case TGSI_OPCODE_ENDIF: return RC_OPCODE_ENDIF; 99 case TGSI_OPCODE_ENDLOOP: return RC_OPCODE_ENDLOOP; 100 /* case TGSI_OPCODE_PUSHA: return RC_OPCODE_PUSHA; */ 101 /* case TGSI_OPCODE_POPA: return RC_OPCODE_POPA; */ 102 case TGSI_OPCODE_CEIL: return RC_OPCODE_CEIL; 103 /* case TGSI_OPCODE_I2F: return RC_OPCODE_I2F; */ 104 /* case TGSI_OPCODE_NOT: return RC_OPCODE_NOT; */ 105 case TGSI_OPCODE_TRUNC: return RC_OPCODE_TRUNC; 106 /* case TGSI_OPCODE_SHL: return RC_OPCODE_SHL; */ 107 /* case TGSI_OPCODE_ISHR: return RC_OPCODE_SHR; */ 108 /* case TGSI_OPCODE_AND: return RC_OPCODE_AND; */ 109 /* case TGSI_OPCODE_OR: return RC_OPCODE_OR; */ 110 /* case TGSI_OPCODE_MOD: return RC_OPCODE_MOD; */ 111 /* case TGSI_OPCODE_XOR: return RC_OPCODE_XOR; */ 112 /* case TGSI_OPCODE_SAD: return RC_OPCODE_SAD; */ 113 /* case TGSI_OPCODE_TXF: return RC_OPCODE_TXF; */ 114 /* case TGSI_OPCODE_TXQ: return RC_OPCODE_TXQ; */ 115 case TGSI_OPCODE_CONT: return RC_OPCODE_CONT; 116 /* case TGSI_OPCODE_EMIT: return RC_OPCODE_EMIT; */ 117 /* case TGSI_OPCODE_ENDPRIM: return RC_OPCODE_ENDPRIM; */ 118 /* case TGSI_OPCODE_BGNLOOP2: return RC_OPCODE_BGNLOOP2; */ 119 /* case TGSI_OPCODE_BGNSUB: return RC_OPCODE_BGNSUB; */ 120 /* case TGSI_OPCODE_ENDLOOP2: return RC_OPCODE_ENDLOOP2; */ 121 /* case TGSI_OPCODE_ENDSUB: return RC_OPCODE_ENDSUB; */ 122 case TGSI_OPCODE_NOP: return RC_OPCODE_NOP; 123 /* case TGSI_OPCODE_CALLNZ: return RC_OPCODE_CALLNZ; */ 124 /* case TGSI_OPCODE_BREAKC: return RC_OPCODE_BREAKC; */ 125 case TGSI_OPCODE_KILL_IF: return RC_OPCODE_KIL; 126 } 127 128 fprintf(stderr, "r300: Unknown TGSI/RC opcode: %s\n", tgsi_get_opcode_name(opcode)); 129 return RC_OPCODE_ILLEGAL_OPCODE; 130 } 131 132 static unsigned translate_saturate(unsigned saturate) 133 { 134 return saturate ? RC_SATURATE_ZERO_ONE : RC_SATURATE_NONE; 135 } 136 137 static unsigned translate_register_file(unsigned file) 138 { 139 switch(file) { 140 case TGSI_FILE_CONSTANT: return RC_FILE_CONSTANT; 141 case TGSI_FILE_IMMEDIATE: return RC_FILE_CONSTANT; 142 case TGSI_FILE_INPUT: return RC_FILE_INPUT; 143 case TGSI_FILE_OUTPUT: return RC_FILE_OUTPUT; 144 default: 145 fprintf(stderr, "Unhandled register file: %i\n", file); 146 /* fall-through */ 147 case TGSI_FILE_TEMPORARY: return RC_FILE_TEMPORARY; 148 case TGSI_FILE_ADDRESS: return RC_FILE_ADDRESS; 149 } 150 } 151 152 static int translate_register_index( 153 struct tgsi_to_rc * ttr, 154 unsigned file, 155 int index) 156 { 157 if (file == TGSI_FILE_IMMEDIATE) 158 return ttr->immediate_offset + index; 159 160 return index; 161 } 162 163 static void transform_dstreg( 164 struct tgsi_to_rc * ttr, 165 struct rc_dst_register * dst, 166 struct tgsi_full_dst_register * src) 167 { 168 dst->File = translate_register_file(src->Register.File); 169 dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index); 170 dst->WriteMask = src->Register.WriteMask; 171 172 if (src->Register.Indirect) { 173 ttr->error = TRUE; 174 fprintf(stderr, "r300: Relative addressing of destination operands " 175 "is unsupported.\n"); 176 } 177 } 178 179 static void transform_srcreg( 180 struct tgsi_to_rc * ttr, 181 struct rc_src_register * dst, 182 struct tgsi_full_src_register * src) 183 { 184 unsigned i, j; 185 186 dst->File = translate_register_file(src->Register.File); 187 dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index); 188 dst->RelAddr = src->Register.Indirect; 189 dst->Swizzle = tgsi_util_get_full_src_register_swizzle(src, 0); 190 dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 1) << 3; 191 dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 2) << 6; 192 dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 3) << 9; 193 dst->Abs = src->Register.Absolute; 194 dst->Negate = src->Register.Negate ? RC_MASK_XYZW : 0; 195 196 if (src->Register.File == TGSI_FILE_IMMEDIATE) { 197 for (i = 0; i < ttr->imms_to_swizzle_count; i++) { 198 if (ttr->imms_to_swizzle[i].index == src->Register.Index) { 199 dst->File = RC_FILE_TEMPORARY; 200 dst->Index = 0; 201 dst->Swizzle = 0; 202 for (j = 0; j < 4; j++) { 203 dst->Swizzle |= GET_SWZ(ttr->imms_to_swizzle[i].swizzle, 204 tgsi_util_get_full_src_register_swizzle(src, j)) << (j * 3); 205 } 206 break; 207 } 208 } 209 } 210 } 211 212 static void transform_texture(struct rc_instruction * dst, struct tgsi_instruction_texture src, 213 uint32_t *shadowSamplers) 214 { 215 switch(src.Texture) { 216 case TGSI_TEXTURE_1D: 217 dst->U.I.TexSrcTarget = RC_TEXTURE_1D; 218 break; 219 case TGSI_TEXTURE_2D: 220 dst->U.I.TexSrcTarget = RC_TEXTURE_2D; 221 break; 222 case TGSI_TEXTURE_3D: 223 dst->U.I.TexSrcTarget = RC_TEXTURE_3D; 224 break; 225 case TGSI_TEXTURE_CUBE: 226 dst->U.I.TexSrcTarget = RC_TEXTURE_CUBE; 227 break; 228 case TGSI_TEXTURE_RECT: 229 dst->U.I.TexSrcTarget = RC_TEXTURE_RECT; 230 break; 231 case TGSI_TEXTURE_SHADOW1D: 232 dst->U.I.TexSrcTarget = RC_TEXTURE_1D; 233 dst->U.I.TexShadow = 1; 234 *shadowSamplers |= 1 << dst->U.I.TexSrcUnit; 235 break; 236 case TGSI_TEXTURE_SHADOW2D: 237 dst->U.I.TexSrcTarget = RC_TEXTURE_2D; 238 dst->U.I.TexShadow = 1; 239 *shadowSamplers |= 1 << dst->U.I.TexSrcUnit; 240 break; 241 case TGSI_TEXTURE_SHADOWRECT: 242 dst->U.I.TexSrcTarget = RC_TEXTURE_RECT; 243 dst->U.I.TexShadow = 1; 244 *shadowSamplers |= 1 << dst->U.I.TexSrcUnit; 245 break; 246 } 247 dst->U.I.TexSwizzle = RC_SWIZZLE_XYZW; 248 } 249 250 static void transform_instruction(struct tgsi_to_rc * ttr, struct tgsi_full_instruction * src) 251 { 252 struct rc_instruction * dst; 253 int i; 254 255 dst = rc_insert_new_instruction(ttr->compiler, ttr->compiler->Program.Instructions.Prev); 256 dst->U.I.Opcode = translate_opcode(src->Instruction.Opcode); 257 dst->U.I.SaturateMode = translate_saturate(src->Instruction.Saturate); 258 259 if (src->Instruction.NumDstRegs) 260 transform_dstreg(ttr, &dst->U.I.DstReg, &src->Dst[0]); 261 262 for(i = 0; i < src->Instruction.NumSrcRegs; ++i) { 263 if (src->Src[i].Register.File == TGSI_FILE_SAMPLER) 264 dst->U.I.TexSrcUnit = src->Src[i].Register.Index; 265 else 266 transform_srcreg(ttr, &dst->U.I.SrcReg[i], &src->Src[i]); 267 } 268 269 /* Texturing. */ 270 if (src->Instruction.Texture) 271 transform_texture(dst, src->Texture, 272 &ttr->compiler->Program.ShadowSamplers); 273 } 274 275 static void handle_immediate(struct tgsi_to_rc * ttr, 276 struct tgsi_full_immediate * imm, 277 unsigned index) 278 { 279 struct rc_constant constant; 280 unsigned swizzle = 0; 281 boolean can_swizzle = TRUE; 282 unsigned i; 283 284 for (i = 0; i < 4; i++) { 285 if (imm->u[i].Float == 0.0f) { 286 swizzle |= RC_SWIZZLE_ZERO << (i * 3); 287 } else if (imm->u[i].Float == 0.5f && ttr->use_half_swizzles) { 288 swizzle |= RC_SWIZZLE_HALF << (i * 3); 289 } else if (imm->u[i].Float == 1.0f) { 290 swizzle |= RC_SWIZZLE_ONE << (i * 3); 291 } else { 292 can_swizzle = FALSE; 293 break; 294 } 295 } 296 297 if (can_swizzle) { 298 ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].index = index; 299 ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].swizzle = swizzle; 300 ttr->imms_to_swizzle_count++; 301 } else { 302 constant.Type = RC_CONSTANT_IMMEDIATE; 303 constant.Size = 4; 304 for(i = 0; i < 4; ++i) 305 constant.u.Immediate[i] = imm->u[i].Float; 306 rc_constants_add(&ttr->compiler->Program.Constants, &constant); 307 } 308 } 309 310 void r300_tgsi_to_rc(struct tgsi_to_rc * ttr, 311 const struct tgsi_token * tokens) 312 { 313 struct tgsi_full_instruction *inst; 314 struct tgsi_parse_context parser; 315 unsigned imm_index = 0; 316 int i; 317 318 ttr->error = FALSE; 319 320 /* Allocate constants placeholders. 321 * 322 * Note: What if declared constants are not contiguous? */ 323 for(i = 0; i <= ttr->info->file_max[TGSI_FILE_CONSTANT]; ++i) { 324 struct rc_constant constant; 325 memset(&constant, 0, sizeof(constant)); 326 constant.Type = RC_CONSTANT_EXTERNAL; 327 constant.Size = 4; 328 constant.u.External = i; 329 rc_constants_add(&ttr->compiler->Program.Constants, &constant); 330 } 331 332 ttr->immediate_offset = ttr->compiler->Program.Constants.Count; 333 334 ttr->imms_to_swizzle = malloc(ttr->info->immediate_count * sizeof(struct swizzled_imms)); 335 ttr->imms_to_swizzle_count = 0; 336 337 tgsi_parse_init(&parser, tokens); 338 339 while (!tgsi_parse_end_of_tokens(&parser)) { 340 tgsi_parse_token(&parser); 341 342 switch (parser.FullToken.Token.Type) { 343 case TGSI_TOKEN_TYPE_DECLARATION: 344 break; 345 case TGSI_TOKEN_TYPE_IMMEDIATE: 346 handle_immediate(ttr, &parser.FullToken.FullImmediate, imm_index); 347 imm_index++; 348 break; 349 case TGSI_TOKEN_TYPE_INSTRUCTION: 350 inst = &parser.FullToken.FullInstruction; 351 if (inst->Instruction.Opcode == TGSI_OPCODE_END) { 352 break; 353 } 354 355 transform_instruction(ttr, inst); 356 break; 357 } 358 } 359 360 tgsi_parse_free(&parser); 361 362 free(ttr->imms_to_swizzle); 363 364 rc_calculate_inputs_outputs(ttr->compiler); 365 } 366
