src/gallium/drivers/r300/r300_tgsi_to_rc.c

   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 "r300_tgsi_to_rc.h"
  24
  25 #include "radeon_compiler.h"
  26 #include "radeon_program.h"
  27
  28 #include "tgsi/tgsi_parse.h"
  29 #include "tgsi/tgsi_scan.h"
  30 #include "tgsi/tgsi_util.h"
  31
  32
  33 static unsigned translate_opcode(unsigned opcode)
  34 {
  35     switch(opcode) {
  36         case TGSI_OPCODE_ARL: return OPCODE_ARL;
  37         case TGSI_OPCODE_MOV: return OPCODE_MOV;
  38         case TGSI_OPCODE_LIT: return OPCODE_LIT;
  39         case TGSI_OPCODE_RCP: return OPCODE_RCP;
  40         case TGSI_OPCODE_RSQ: return OPCODE_RSQ;
  41         case TGSI_OPCODE_EXP: return OPCODE_EXP;
  42         case TGSI_OPCODE_LOG: return OPCODE_LOG;
  43         case TGSI_OPCODE_MUL: return OPCODE_MUL;
  44         case TGSI_OPCODE_ADD: return OPCODE_ADD;
  45         case TGSI_OPCODE_DP3: return OPCODE_DP3;
  46         case TGSI_OPCODE_DP4: return OPCODE_DP4;
  47         case TGSI_OPCODE_DST: return OPCODE_DST;
  48         case TGSI_OPCODE_MIN: return OPCODE_MIN;
  49         case TGSI_OPCODE_MAX: return OPCODE_MAX;
  50         case TGSI_OPCODE_SLT: return OPCODE_SLT;
  51         case TGSI_OPCODE_SGE: return OPCODE_SGE;
  52         case TGSI_OPCODE_MAD: return OPCODE_MAD;
  53         case TGSI_OPCODE_SUB: return OPCODE_SUB;
  54         case TGSI_OPCODE_LRP: return OPCODE_LRP;
  55      /* case TGSI_OPCODE_CND: return OPCODE_CND; */
  56      /* case TGSI_OPCODE_CND0: return OPCODE_CND0; */
  57         case TGSI_OPCODE_DP2A: return OPCODE_DP2A;
  58                                         /* gap */
  59         case TGSI_OPCODE_FRC: return OPCODE_FRC;
  60      /* case TGSI_OPCODE_CLAMP: return OPCODE_CLAMP; */
  61         case TGSI_OPCODE_FLR: return OPCODE_FLR;
  62      /* case TGSI_OPCODE_ROUND: return OPCODE_ROUND; */
  63         case TGSI_OPCODE_EX2: return OPCODE_EX2;
  64         case TGSI_OPCODE_LG2: return OPCODE_LG2;
  65         case TGSI_OPCODE_POW: return OPCODE_POW;
  66         case TGSI_OPCODE_XPD: return OPCODE_XPD;
  67                                         /* gap */
  68         case TGSI_OPCODE_ABS: return OPCODE_ABS;
  69         case TGSI_OPCODE_RCC: return OPCODE_RCC;
  70         case TGSI_OPCODE_DPH: return OPCODE_DPH;
  71         case TGSI_OPCODE_COS: return OPCODE_COS;
  72         case TGSI_OPCODE_DDX: return OPCODE_DDX;
  73         case TGSI_OPCODE_DDY: return OPCODE_DDY;
  74      /* case TGSI_OPCODE_KILP: return OPCODE_KILP; */
  75         case TGSI_OPCODE_PK2H: return OPCODE_PK2H;
  76         case TGSI_OPCODE_PK2US: return OPCODE_PK2US;
  77         case TGSI_OPCODE_PK4B: return OPCODE_PK4B;
  78         case TGSI_OPCODE_PK4UB: return OPCODE_PK4UB;
  79         case TGSI_OPCODE_RFL: return OPCODE_RFL;
  80         case TGSI_OPCODE_SEQ: return OPCODE_SEQ;
  81         case TGSI_OPCODE_SFL: return OPCODE_SFL;
  82         case TGSI_OPCODE_SGT: return OPCODE_SGT;
  83         case TGSI_OPCODE_SIN: return OPCODE_SIN;
  84         case TGSI_OPCODE_SLE: return OPCODE_SLE;
  85         case TGSI_OPCODE_SNE: return OPCODE_SNE;
  86         case TGSI_OPCODE_STR: return OPCODE_STR;
  87         case TGSI_OPCODE_TEX: return OPCODE_TEX;
  88         case TGSI_OPCODE_TXD: return OPCODE_TXD;
  89         case TGSI_OPCODE_TXP: return OPCODE_TXP;
  90         case TGSI_OPCODE_UP2H: return OPCODE_UP2H;
  91         case TGSI_OPCODE_UP2US: return OPCODE_UP2US;
  92         case TGSI_OPCODE_UP4B: return OPCODE_UP4B;
  93         case TGSI_OPCODE_UP4UB: return OPCODE_UP4UB;
  94         case TGSI_OPCODE_X2D: return OPCODE_X2D;
  95         case TGSI_OPCODE_ARA: return OPCODE_ARA;
  96         case TGSI_OPCODE_ARR: return OPCODE_ARR;
  97         case TGSI_OPCODE_BRA: return OPCODE_BRA;
  98         case TGSI_OPCODE_CAL: return OPCODE_CAL;
  99         case TGSI_OPCODE_RET: return OPCODE_RET;
 100         case TGSI_OPCODE_SSG: return OPCODE_SSG;
 101         case TGSI_OPCODE_CMP: return OPCODE_CMP;
 102         case TGSI_OPCODE_SCS: return OPCODE_SCS;
 103         case TGSI_OPCODE_TXB: return OPCODE_TXB;
 104      /* case TGSI_OPCODE_NRM: return OPCODE_NRM; */
 105      /* case TGSI_OPCODE_DIV: return OPCODE_DIV; */
 106         case TGSI_OPCODE_DP2: return OPCODE_DP2;
 107         case TGSI_OPCODE_TXL: return OPCODE_TXL;
 108         case TGSI_OPCODE_BRK: return OPCODE_BRK;
 109         case TGSI_OPCODE_IF: return OPCODE_IF;
 110      /* case TGSI_OPCODE_LOOP: return OPCODE_LOOP; */
 111      /* case TGSI_OPCODE_REP: return OPCODE_REP; */
 112         case TGSI_OPCODE_ELSE: return OPCODE_ELSE;
 113         case TGSI_OPCODE_ENDIF: return OPCODE_ENDIF;
 114         case TGSI_OPCODE_ENDLOOP: return OPCODE_ENDLOOP;
 115      /* case TGSI_OPCODE_ENDREP: return OPCODE_ENDREP; */
 116         case TGSI_OPCODE_PUSHA: return OPCODE_PUSHA;
 117         case TGSI_OPCODE_POPA: return OPCODE_POPA;
 118      /* case TGSI_OPCODE_CEIL: return OPCODE_CEIL; */
 119      /* case TGSI_OPCODE_I2F: return OPCODE_I2F; */
 120         case TGSI_OPCODE_NOT: return OPCODE_NOT;
 121         case TGSI_OPCODE_TRUNC: return OPCODE_TRUNC;
 122      /* case TGSI_OPCODE_SHL: return OPCODE_SHL; */
 123      /* case TGSI_OPCODE_SHR: return OPCODE_SHR; */
 124         case TGSI_OPCODE_AND: return OPCODE_AND;
 125         case TGSI_OPCODE_OR: return OPCODE_OR;
 126      /* case TGSI_OPCODE_MOD: return OPCODE_MOD; */
 127         case TGSI_OPCODE_XOR: return OPCODE_XOR;
 128      /* case TGSI_OPCODE_SAD: return OPCODE_SAD; */
 129      /* case TGSI_OPCODE_TXF: return OPCODE_TXF; */
 130      /* case TGSI_OPCODE_TXQ: return OPCODE_TXQ; */
 131         case TGSI_OPCODE_CONT: return OPCODE_CONT;
 132      /* case TGSI_OPCODE_EMIT: return OPCODE_EMIT; */
 133      /* case TGSI_OPCODE_ENDPRIM: return OPCODE_ENDPRIM; */
 134      /* case TGSI_OPCODE_BGNLOOP2: return OPCODE_BGNLOOP2; */
 135         case TGSI_OPCODE_BGNSUB: return OPCODE_BGNSUB;
 136      /* case TGSI_OPCODE_ENDLOOP2: return OPCODE_ENDLOOP2; */
 137         case TGSI_OPCODE_ENDSUB: return OPCODE_ENDSUB;
 138         case TGSI_OPCODE_NOISE1: return OPCODE_NOISE1;
 139         case TGSI_OPCODE_NOISE2: return OPCODE_NOISE2;
 140         case TGSI_OPCODE_NOISE3: return OPCODE_NOISE3;
 141         case TGSI_OPCODE_NOISE4: return OPCODE_NOISE4;
 142         case TGSI_OPCODE_NOP: return OPCODE_NOP;
 143                                         /* gap */
 144         case TGSI_OPCODE_NRM4: return OPCODE_NRM4;
 145      /* case TGSI_OPCODE_CALLNZ: return OPCODE_CALLNZ; */
 146      /* case TGSI_OPCODE_IFC: return OPCODE_IFC; */
 147      /* case TGSI_OPCODE_BREAKC: return OPCODE_BREAKC; */
 148         case TGSI_OPCODE_KIL: return OPCODE_KIL;
 149         case TGSI_OPCODE_END: return OPCODE_END;
 150         case TGSI_OPCODE_SWZ: return OPCODE_SWZ;
 151     }
 152
 153     fprintf(stderr, "Unknown opcode: %i\n", opcode);
 154     abort();
 155 }
 156
 157 static unsigned translate_saturate(unsigned saturate)
 158 {
 159     switch(saturate) {
 160         case TGSI_SAT_NONE: return SATURATE_OFF;
 161         case TGSI_SAT_ZERO_ONE: return SATURATE_ZERO_ONE;
 162         case TGSI_SAT_MINUS_PLUS_ONE: return SATURATE_PLUS_MINUS_ONE;
 163     }
 164
 165     fprintf(stderr, "Unknown saturate mode: %i\n", saturate);
 166     abort();
 167 }
 168
 169 static unsigned translate_register_file(unsigned file)
 170 {
 171     switch(file) {
 172         case TGSI_FILE_CONSTANT: return PROGRAM_CONSTANT;
 173         case TGSI_FILE_IMMEDIATE: return PROGRAM_CONSTANT;
 174         case TGSI_FILE_INPUT: return PROGRAM_INPUT;
 175         case TGSI_FILE_OUTPUT: return PROGRAM_OUTPUT;
 176         case TGSI_FILE_TEMPORARY: return PROGRAM_TEMPORARY;
 177         case TGSI_FILE_ADDRESS: return PROGRAM_ADDRESS;
 178     }
 179
 180     fprintf(stderr, "Unhandled register file: %i\n", file);
 181     abort();
 182 }
 183
 184 static int translate_register_index(
 185     struct tgsi_to_rc * ttr,
 186     unsigned file,
 187     int index)
 188 {
 189     if (file == TGSI_FILE_IMMEDIATE)
 190         return ttr->immediate_offset + index;
 191
 192     return index;
 193 }
 194
 195 static void transform_dstreg(
 196     struct tgsi_to_rc * ttr,
 197     struct prog_dst_register * dst,
 198     struct tgsi_full_dst_register * src)
 199 {
 200     dst->File = translate_register_file(src->DstRegister.File);
 201     dst->Index = translate_register_index(ttr, src->DstRegister.File, src->DstRegister.Index);
 202     dst->WriteMask = src->DstRegister.WriteMask;
 203     dst->RelAddr = src->DstRegister.Indirect;
 204 }
 205
 206 static void transform_srcreg(
 207     struct tgsi_to_rc * ttr,
 208     struct prog_src_register * dst,
 209     struct tgsi_full_src_register * src)
 210 {
 211     dst->File = translate_register_file(src->SrcRegister.File);
 212     dst->Index = translate_register_index(ttr, src->SrcRegister.File, src->SrcRegister.Index);
 213     dst->RelAddr = src->SrcRegister.Indirect;
 214     dst->Swizzle = tgsi_util_get_full_src_register_extswizzle(src, 0);
 215     dst->Swizzle |= tgsi_util_get_full_src_register_extswizzle(src, 1) << 3;
 216     dst->Swizzle |= tgsi_util_get_full_src_register_extswizzle(src, 2) << 6;
 217     dst->Swizzle |= tgsi_util_get_full_src_register_extswizzle(src, 3) << 9;
 218     dst->Abs = src->SrcRegisterExtMod.Absolute;
 219     dst->Negate =
 220         src->SrcRegisterExtSwz.NegateX |
 221         (src->SrcRegisterExtSwz.NegateY << 1) |
 222         (src->SrcRegisterExtSwz.NegateZ << 2) |
 223         (src->SrcRegisterExtSwz.NegateW << 3);
 224     dst->Negate ^= src->SrcRegister.Negate ? NEGATE_XYZW : 0;
 225 }
 226
 227 static void transform_texture(struct rc_instruction * dst, struct tgsi_instruction_ext_texture src)
 228 {
 229     switch(src.Texture) {
 230         case TGSI_TEXTURE_1D:
 231             dst->I.TexSrcTarget = TEXTURE_1D_INDEX;
 232             break;
 233         case TGSI_TEXTURE_2D:
 234             dst->I.TexSrcTarget = TEXTURE_2D_INDEX;
 235             break;
 236         case TGSI_TEXTURE_3D:
 237             dst->I.TexSrcTarget = TEXTURE_3D_INDEX;
 238             break;
 239         case TGSI_TEXTURE_CUBE:
 240             dst->I.TexSrcTarget = TEXTURE_CUBE_INDEX;
 241             break;
 242         case TGSI_TEXTURE_RECT:
 243             dst->I.TexSrcTarget = TEXTURE_RECT_INDEX;
 244             break;
 245         case TGSI_TEXTURE_SHADOW1D:
 246             dst->I.TexSrcTarget = TEXTURE_1D_INDEX;
 247             dst->I.TexShadow = 1;
 248             break;
 249         case TGSI_TEXTURE_SHADOW2D:
 250             dst->I.TexSrcTarget = TEXTURE_2D_INDEX;
 251             dst->I.TexShadow = 1;
 252             break;
 253         case TGSI_TEXTURE_SHADOWRECT:
 254             dst->I.TexSrcTarget = TEXTURE_RECT_INDEX;
 255             dst->I.TexShadow = 1;
 256             break;
 257     }
 258 }
 259
 260 static void transform_instruction(struct tgsi_to_rc * ttr, struct tgsi_full_instruction * src)
 261 {
 262     if (src->Instruction.Opcode == TGSI_OPCODE_END)
 263         return;
 264
 265     struct rc_instruction * dst = rc_insert_new_instruction(ttr->compiler, ttr->compiler->Program.Instructions.Prev);
 266     int i;
 267
 268     dst->I.Opcode = translate_opcode(src->Instruction.Opcode);
 269     dst->I.SaturateMode = translate_saturate(src->Instruction.Saturate);
 270
 271     if (src->Instruction.NumDstRegs)
 272         transform_dstreg(ttr, &dst->I.DstReg, &src->FullDstRegisters[0]);
 273
 274     for(i = 0; i < src->Instruction.NumSrcRegs; ++i) {
 275         if (src->FullSrcRegisters[i].SrcRegister.File == TGSI_FILE_SAMPLER)
 276             dst->I.TexSrcUnit = src->FullSrcRegisters[i].SrcRegister.Index;
 277         else
 278             transform_srcreg(ttr, &dst->I.SrcReg[i], &src->FullSrcRegisters[i]);
 279     }
 280
 281     /* Texturing. */
 282     transform_texture(dst, src->InstructionExtTexture);
 283 }
 284
 285 static void handle_immediate(struct tgsi_to_rc * ttr, struct tgsi_full_immediate * imm)
 286 {
 287     struct rc_constant constant;
 288     int i;
 289
 290     constant.Type = RC_CONSTANT_IMMEDIATE;
 291     constant.Size = 4;
 292     for(i = 0; i < 4; ++i)
 293         constant.u.Immediate[i] = imm->u[i].Float;
 294     rc_constants_add(&ttr->compiler->Program.Constants, &constant);
 295 }
 296
 297 void r300_tgsi_to_rc(struct tgsi_to_rc * ttr, const struct tgsi_token * tokens)
 298 {
 299     struct tgsi_parse_context parser;
 300     int i;
 301
 302     /* Allocate constants placeholders.
 303      *
 304      * Note: What if declared constants are not contiguous? */
 305     for(i = 0; i <= ttr->info->file_max[TGSI_FILE_CONSTANT]; ++i) {
 306         struct rc_constant constant;
 307         memset(&constant, 0, sizeof(constant));
 308         constant.Type = RC_CONSTANT_EXTERNAL;
 309         constant.Size = 4;
 310         constant.u.External = i;
 311         rc_constants_add(&ttr->compiler->Program.Constants, &constant);
 312     }
 313
 314     ttr->immediate_offset = ttr->compiler->Program.Constants.Count;
 315
 316     tgsi_parse_init(&parser, tokens);
 317
 318     while (!tgsi_parse_end_of_tokens(&parser)) {
 319         tgsi_parse_token(&parser);
 320
 321         switch (parser.FullToken.Token.Type) {
 322             case TGSI_TOKEN_TYPE_DECLARATION:
 323                 break;
 324             case TGSI_TOKEN_TYPE_IMMEDIATE:
 325                 handle_immediate(ttr, &parser.FullToken.FullImmediate);
 326                 break;
 327             case TGSI_TOKEN_TYPE_INSTRUCTION:
 328                 transform_instruction(ttr, &parser.FullToken.FullInstruction);
 329                 break;
 330         }
 331     }
 332
 333     tgsi_parse_free(&parser);
 334
 335     rc_calculate_inputs_outputs(ttr->compiler);
 336 }
 337