src/glsl/ir_print_visitor.cpp

   1 /*
   2  * Copyright © 2010 Intel Corporation
   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  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #include "ir_print_visitor.h"
  25 #include "glsl_types.h"
  26 #include "glsl_parser_extras.h"
  27
  28 static void print_type(const glsl_type *t);
  29
  30 void
  31 ir_instruction::print(void) const
  32 {
  33    ir_instruction *deconsted = const_cast<ir_instruction *>(this);
  34
  35    ir_print_visitor v;
  36    deconsted->accept(&v);
  37 }
  38
  39 void
  40 _mesa_print_ir(exec_list *instructions,
  41                struct _mesa_glsl_parse_state *state)
  42 {
  43    if (state) {
  44       for (unsigned i = 0; i < state->num_user_structures; i++) {
  45          const glsl_type *const s = state->user_structures[i];
  46
  47          printf("(structure (%s) (%s@%p) (%u) (\n",
  48                 s->name, s->name, (void *) s, s->length);
  49
  50          for (unsigned j = 0; j < s->length; j++) {
  51             printf("\t((");
  52             print_type(s->fields.structure[j].type);
  53             printf(")(%s))\n", s->fields.structure[j].name);
  54          }
  55
  56          printf(")\n");
  57       }
  58    }
  59
  60    printf("(\n");
  61    foreach_iter(exec_list_iterator, iter, *instructions) {
  62       ir_instruction *ir = (ir_instruction *)iter.get();
  63       ir->print();
  64       if (ir->ir_type != ir_type_function)
  65          printf("\n");
  66    }
  67    printf("\n)");
  68 }
  69
  70
  71 void ir_print_visitor::indent(void)
  72 {
  73    for (int i = 0; i < indentation; i++)
  74       printf("  ");
  75 }
  76
  77 static void
  78 print_type(const glsl_type *t)
  79 {
  80    if (t->base_type == GLSL_TYPE_ARRAY) {
  81       printf("(array ");
  82       print_type(t->fields.array);
  83       printf(" %u)", t->length);
  84    } else if ((t->base_type == GLSL_TYPE_STRUCT)
  85               && (strncmp("gl_", t->name, 3) != 0)) {
  86       printf("%s@%p", t->name, (void *) t);
  87    } else {
  88       printf("%s", t->name);
  89    }
  90 }
  91
  92
  93 void ir_print_visitor::visit(ir_variable *ir)
  94 {
  95    printf("(declare ");
  96
  97    const char *const cent = (ir->centroid) ? "centroid " : "";
  98    const char *const inv = (ir->invariant) ? "invariant " : "";
  99    const char *const mode[] = { "", "uniform ", "in ", "out ", "inout ",
 100                                 "temporary " };
 101    const char *const interp[] = { "", "flat", "noperspective" };
 102
 103    printf("(%s%s%s%s) ",
 104           cent, inv, mode[ir->mode], interp[ir->interpolation]);
 105
 106    print_type(ir->type);
 107    printf(" %s@%p)", ir->name, (void *) ir);
 108 }
 109
 110
 111 void ir_print_visitor::visit(ir_function_signature *ir)
 112 {
 113    printf("(signature ");
 114    indentation++;
 115
 116    print_type(ir->return_type);
 117    printf("\n");
 118    indent();
 119
 120    printf("(parameters\n");
 121    indentation++;
 122
 123    foreach_iter(exec_list_iterator, iter, ir->parameters) {
 124       ir_variable *const inst = (ir_variable *) iter.get();
 125
 126       indent();
 127       inst->accept(this);
 128       printf("\n");
 129    }
 130    indentation--;
 131
 132    indent();
 133    printf(")\n");
 134
 135    indent();
 136
 137    printf("(\n");
 138    indentation++;
 139
 140    foreach_iter(exec_list_iterator, iter, ir->body) {
 141       ir_instruction *const inst = (ir_instruction *) iter.get();
 142
 143       indent();
 144       inst->accept(this);
 145       printf("\n");
 146    }
 147    indentation--;
 148    indent();
 149    printf("))\n");
 150    indentation--;
 151 }
 152
 153
 154 void ir_print_visitor::visit(ir_function *ir)
 155 {
 156    if (!ir->has_user_signature())
 157       return;
 158
 159    printf("(function %s\n", ir->name);
 160    indentation++;
 161    foreach_iter(exec_list_iterator, iter, *ir) {
 162       ir_function_signature *const sig = (ir_function_signature *) iter.get();
 163
 164       if (sig->is_builtin)
 165          continue;
 166
 167       indent();
 168       sig->accept(this);
 169       printf("\n");
 170    }
 171    indentation--;
 172    indent();
 173    printf(")\n\n");
 174 }
 175
 176
 177 void ir_print_visitor::visit(ir_expression *ir)
 178 {
 179    printf("(expression ");
 180
 181    print_type(ir->type);
 182
 183    printf(" %s ", ir->operator_string());
 184
 185    for (unsigned i = 0; i < ir->get_num_operands(); i++) {
 186       ir->operands[i]->accept(this);
 187    }
 188
 189    printf(") ");
 190 }
 191
 192
 193 void ir_print_visitor::visit(ir_texture *ir)
 194 {
 195    printf("(%s ", ir->opcode_string());
 196
 197    ir->sampler->accept(this);
 198    printf(" ");
 199
 200    ir->coordinate->accept(this);
 201
 202    printf(" (%d %d %d) ", ir->offsets[0], ir->offsets[1], ir->offsets[2]);
 203
 204    if (ir->op != ir_txf) {
 205       if (ir->projector)
 206          ir->projector->accept(this);
 207       else
 208          printf("1");
 209
 210       if (ir->shadow_comparitor) {
 211          printf(" ");
 212          ir->shadow_comparitor->accept(this);
 213       } else {
 214          printf(" ()");
 215       }
 216    }
 217
 218    printf(" ");
 219    switch (ir->op)
 220    {
 221    case ir_tex:
 222       break;
 223    case ir_txb:
 224       ir->lod_info.bias->accept(this);
 225       break;
 226    case ir_txl:
 227    case ir_txf:
 228       ir->lod_info.lod->accept(this);
 229       break;
 230    case ir_txd:
 231       printf("(");
 232       ir->lod_info.grad.dPdx->accept(this);
 233       printf(" ");
 234       ir->lod_info.grad.dPdy->accept(this);
 235       printf(")");
 236       break;
 237    };
 238    printf(")");
 239 }
 240
 241
 242 void ir_print_visitor::visit(ir_swizzle *ir)
 243 {
 244    const unsigned swiz[4] = {
 245       ir->mask.x,
 246       ir->mask.y,
 247       ir->mask.z,
 248       ir->mask.w,
 249    };
 250
 251    printf("(swiz ");
 252    for (unsigned i = 0; i < ir->mask.num_components; i++) {
 253       printf("%c", "xyzw"[swiz[i]]);
 254    }
 255    printf(" ");
 256    ir->val->accept(this);
 257    printf(")");
 258 }
 259
 260
 261 void ir_print_visitor::visit(ir_dereference_variable *ir)
 262 {
 263    ir_variable *var = ir->variable_referenced();
 264    printf("(var_ref %s@%p) ", var->name, (void *) var);
 265 }
 266
 267
 268 void ir_print_visitor::visit(ir_dereference_array *ir)
 269 {
 270    printf("(array_ref ");
 271    ir->array->accept(this);
 272    ir->array_index->accept(this);
 273    printf(") ");
 274 }
 275
 276
 277 void ir_print_visitor::visit(ir_dereference_record *ir)
 278 {
 279    printf("(record_ref ");
 280    ir->record->accept(this);
 281    printf(" %s) ", ir->field);
 282 }
 283
 284
 285 void ir_print_visitor::visit(ir_assignment *ir)
 286 {
 287    printf("(assign ");
 288
 289    if (ir->condition)
 290       ir->condition->accept(this);
 291    else
 292       printf("(constant bool (1))");
 293
 294
 295    char mask[5];
 296    unsigned j = 0;
 297
 298    for (unsigned i = 0; i < 4; i++) {
 299       if ((ir->write_mask & (1 << i)) != 0) {
 300          mask[j] = "xyzw"[i];
 301          j++;
 302       }
 303    }
 304    mask[j] = '\0';
 305
 306    printf(" (%s) ", mask);
 307
 308    ir->lhs->accept(this);
 309
 310    printf(" ");
 311
 312    ir->rhs->accept(this);
 313    printf(") ");
 314 }
 315
 316
 317 void ir_print_visitor::visit(ir_constant *ir)
 318 {
 319    const glsl_type *const base_type = ir->type->get_base_type();
 320
 321    printf("(constant ");
 322    print_type(ir->type);
 323    printf(" (");
 324
 325    if (ir->type->is_array()) {
 326       for (unsigned i = 0; i < ir->type->length; i++)
 327          ir->get_array_element(i)->accept(this);
 328    } else {
 329       for (unsigned i = 0; i < ir->type->components(); i++) {
 330          if (i != 0)
 331             printf(" ");
 332          switch (base_type->base_type) {
 333          case GLSL_TYPE_UINT:  printf("%u", ir->value.u[i]); break;
 334          case GLSL_TYPE_INT:   printf("%d", ir->value.i[i]); break;
 335          case GLSL_TYPE_FLOAT: printf("%f", ir->value.f[i]); break;
 336          case GLSL_TYPE_BOOL:  printf("%d", ir->value.b[i]); break;
 337          default: assert(0);
 338          }
 339       }
 340    }
 341    printf(")) ");
 342 }
 343
 344
 345 void
 346 ir_print_visitor::visit(ir_call *ir)
 347 {
 348    printf("(call %s (", ir->callee_name());
 349    foreach_iter(exec_list_iterator, iter, *ir) {
 350       ir_instruction *const inst = (ir_instruction *) iter.get();
 351
 352       inst->accept(this);
 353    }
 354    printf("))\n");
 355 }
 356
 357
 358 void
 359 ir_print_visitor::visit(ir_return *ir)
 360 {
 361    printf("(return");
 362
 363    ir_rvalue *const value = ir->get_value();
 364    if (value) {
 365       printf(" ");
 366       value->accept(this);
 367    }
 368
 369    printf(")");
 370 }
 371
 372
 373 void
 374 ir_print_visitor::visit(ir_discard *ir)
 375 {
 376    printf("(discard ");
 377
 378    if (ir->condition != NULL) {
 379       printf(" ");
 380       ir->condition->accept(this);
 381    }
 382
 383    printf(")");
 384 }
 385
 386
 387 void
 388 ir_print_visitor::visit(ir_if *ir)
 389 {
 390    printf("(if ");
 391    ir->condition->accept(this);
 392
 393    printf("(\n");
 394    indentation++;
 395
 396    foreach_iter(exec_list_iterator, iter, ir->then_instructions) {
 397       ir_instruction *const inst = (ir_instruction *) iter.get();
 398
 399       indent();
 400       inst->accept(this);
 401       printf("\n");
 402    }
 403
 404    indentation--;
 405    indent();
 406    printf(")\n");
 407
 408    indent();
 409    if (!ir->else_instructions.is_empty()) {
 410       printf("(\n");
 411       indentation++;
 412
 413       foreach_iter(exec_list_iterator, iter, ir->else_instructions) {
 414          ir_instruction *const inst = (ir_instruction *) iter.get();
 415
 416          indent();
 417          inst->accept(this);
 418          printf("\n");
 419       }
 420       indentation--;
 421       indent();
 422       printf("))\n");
 423    } else {
 424       printf("())\n");
 425    }
 426 }
 427
 428
 429 void
 430 ir_print_visitor::visit(ir_loop *ir)
 431 {
 432    printf("(loop (");
 433    if (ir->counter != NULL)
 434       ir->counter->accept(this);
 435    printf(") (");
 436    if (ir->from != NULL)
 437       ir->from->accept(this);
 438    printf(") (");
 439    if (ir->to != NULL)
 440       ir->to->accept(this);
 441    printf(") (");
 442    if (ir->increment != NULL)
 443       ir->increment->accept(this);
 444    printf(") (\n");
 445    indentation++;
 446
 447    foreach_iter(exec_list_iterator, iter, ir->body_instructions) {
 448       ir_instruction *const inst = (ir_instruction *) iter.get();
 449
 450       indent();
 451       inst->accept(this);
 452       printf("\n");
 453    }
 454    indentation--;
 455    indent();
 456    printf("))\n");
 457 }
 458
 459
 460 void
 461 ir_print_visitor::visit(ir_loop_jump *ir)
 462 {
 463    printf("%s", ir->is_break() ? "break" : "continue");
 464 }