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                                 "const_in ", "sys ", "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    printf("(function %s\n", ir->name);
 157    indentation++;
 158    foreach_iter(exec_list_iterator, iter, *ir) {
 159       ir_function_signature *const sig = (ir_function_signature *) iter.get();
 160       indent();
 161       sig->accept(this);
 162       printf("\n");
 163    }
 164    indentation--;
 165    indent();
 166    printf(")\n\n");
 167 }
 168
 169
 170 void ir_print_visitor::visit(ir_expression *ir)
 171 {
 172    printf("(expression ");
 173
 174    print_type(ir->type);
 175
 176    printf(" %s ", ir->operator_string());
 177
 178    for (unsigned i = 0; i < ir->get_num_operands(); i++) {
 179       ir->operands[i]->accept(this);
 180    }
 181
 182    printf(") ");
 183 }
 184
 185
 186 void ir_print_visitor::visit(ir_texture *ir)
 187 {
 188    printf("(%s ", ir->opcode_string());
 189
 190    ir->sampler->accept(this);
 191    printf(" ");
 192
 193    ir->coordinate->accept(this);
 194
 195    printf(" ");
 196
 197    if (ir->offset != NULL) {
 198       ir->offset->accept(this);
 199    } else {
 200       printf("0");
 201    }
 202
 203    printf(" ");
 204
 205    if (ir->op != ir_txf) {
 206       if (ir->projector)
 207          ir->projector->accept(this);
 208       else
 209          printf("1");
 210
 211       if (ir->shadow_comparitor) {
 212          printf(" ");
 213          ir->shadow_comparitor->accept(this);
 214       } else {
 215          printf(" ()");
 216       }
 217    }
 218
 219    printf(" ");
 220    switch (ir->op)
 221    {
 222    case ir_tex:
 223       break;
 224    case ir_txb:
 225       ir->lod_info.bias->accept(this);
 226       break;
 227    case ir_txl:
 228    case ir_txf:
 229       ir->lod_info.lod->accept(this);
 230       break;
 231    case ir_txd:
 232       printf("(");
 233       ir->lod_info.grad.dPdx->accept(this);
 234       printf(" ");
 235       ir->lod_info.grad.dPdy->accept(this);
 236       printf(")");
 237       break;
 238    };
 239    printf(")");
 240 }
 241
 242
 243 void ir_print_visitor::visit(ir_swizzle *ir)
 244 {
 245    const unsigned swiz[4] = {
 246       ir->mask.x,
 247       ir->mask.y,
 248       ir->mask.z,
 249       ir->mask.w,
 250    };
 251
 252    printf("(swiz ");
 253    for (unsigned i = 0; i < ir->mask.num_components; i++) {
 254       printf("%c", "xyzw"[swiz[i]]);
 255    }
 256    printf(" ");
 257    ir->val->accept(this);
 258    printf(")");
 259 }
 260
 261
 262 void ir_print_visitor::visit(ir_dereference_variable *ir)
 263 {
 264    ir_variable *var = ir->variable_referenced();
 265    printf("(var_ref %s@%p) ", var->name, (void *) var);
 266 }
 267
 268
 269 void ir_print_visitor::visit(ir_dereference_array *ir)
 270 {
 271    printf("(array_ref ");
 272    ir->array->accept(this);
 273    ir->array_index->accept(this);
 274    printf(") ");
 275 }
 276
 277
 278 void ir_print_visitor::visit(ir_dereference_record *ir)
 279 {
 280    printf("(record_ref ");
 281    ir->record->accept(this);
 282    printf(" %s) ", ir->field);
 283 }
 284
 285
 286 void ir_print_visitor::visit(ir_assignment *ir)
 287 {
 288    printf("(assign ");
 289
 290    if (ir->condition)
 291       ir->condition->accept(this);
 292
 293    char mask[5];
 294    unsigned j = 0;
 295
 296    for (unsigned i = 0; i < 4; i++) {
 297       if ((ir->write_mask & (1 << i)) != 0) {
 298          mask[j] = "xyzw"[i];
 299          j++;
 300       }
 301    }
 302    mask[j] = '\0';
 303
 304    printf(" (%s) ", mask);
 305
 306    ir->lhs->accept(this);
 307
 308    printf(" ");
 309
 310    ir->rhs->accept(this);
 311    printf(") ");
 312 }
 313
 314
 315 void ir_print_visitor::visit(ir_constant *ir)
 316 {
 317    const glsl_type *const base_type = ir->type->get_base_type();
 318
 319    printf("(constant ");
 320    print_type(ir->type);
 321    printf(" (");
 322
 323    if (ir->type->is_array()) {
 324       for (unsigned i = 0; i < ir->type->length; i++)
 325          ir->get_array_element(i)->accept(this);
 326    } else if (ir->type->is_record()) {
 327       ir_constant *value = (ir_constant *) ir->components.get_head();
 328       for (unsigned i = 0; i < ir->type->length; i++) {
 329          printf("(%s ", ir->type->fields.structure->name);
 330          value->accept(this);
 331          printf(")");
 332
 333          value = (ir_constant *) value->next;
 334       }
 335    } else {
 336       for (unsigned i = 0; i < ir->type->components(); i++) {
 337          if (i != 0)
 338             printf(" ");
 339          switch (base_type->base_type) {
 340          case GLSL_TYPE_UINT:  printf("%u", ir->value.u[i]); break;
 341          case GLSL_TYPE_INT:   printf("%d", ir->value.i[i]); break;
 342          case GLSL_TYPE_FLOAT: printf("%f", ir->value.f[i]); break;
 343          case GLSL_TYPE_BOOL:  printf("%d", ir->value.b[i]); break;
 344          default: assert(0);
 345          }
 346       }
 347    }
 348    printf(")) ");
 349 }
 350
 351
 352 void
 353 ir_print_visitor::visit(ir_call *ir)
 354 {
 355    printf("(call %s (", ir->callee_name());
 356    foreach_iter(exec_list_iterator, iter, *ir) {
 357       ir_instruction *const inst = (ir_instruction *) iter.get();
 358
 359       inst->accept(this);
 360    }
 361    printf("))\n");
 362 }
 363
 364
 365 void
 366 ir_print_visitor::visit(ir_return *ir)
 367 {
 368    printf("(return");
 369
 370    ir_rvalue *const value = ir->get_value();
 371    if (value) {
 372       printf(" ");
 373       value->accept(this);
 374    }
 375
 376    printf(")");
 377 }
 378
 379
 380 void
 381 ir_print_visitor::visit(ir_discard *ir)
 382 {
 383    printf("(discard ");
 384
 385    if (ir->condition != NULL) {
 386       printf(" ");
 387       ir->condition->accept(this);
 388    }
 389
 390    printf(")");
 391 }
 392
 393
 394 void
 395 ir_print_visitor::visit(ir_if *ir)
 396 {
 397    printf("(if ");
 398    ir->condition->accept(this);
 399
 400    printf("(\n");
 401    indentation++;
 402
 403    foreach_iter(exec_list_iterator, iter, ir->then_instructions) {
 404       ir_instruction *const inst = (ir_instruction *) iter.get();
 405
 406       indent();
 407       inst->accept(this);
 408       printf("\n");
 409    }
 410
 411    indentation--;
 412    indent();
 413    printf(")\n");
 414
 415    indent();
 416    if (!ir->else_instructions.is_empty()) {
 417       printf("(\n");
 418       indentation++;
 419
 420       foreach_iter(exec_list_iterator, iter, ir->else_instructions) {
 421          ir_instruction *const inst = (ir_instruction *) iter.get();
 422
 423          indent();
 424          inst->accept(this);
 425          printf("\n");
 426       }
 427       indentation--;
 428       indent();
 429       printf("))\n");
 430    } else {
 431       printf("())\n");
 432    }
 433 }
 434
 435
 436 void
 437 ir_print_visitor::visit(ir_loop *ir)
 438 {
 439    printf("(loop (");
 440    if (ir->counter != NULL)
 441       ir->counter->accept(this);
 442    printf(") (");
 443    if (ir->from != NULL)
 444       ir->from->accept(this);
 445    printf(") (");
 446    if (ir->to != NULL)
 447       ir->to->accept(this);
 448    printf(") (");
 449    if (ir->increment != NULL)
 450       ir->increment->accept(this);
 451    printf(") (\n");
 452    indentation++;
 453
 454    foreach_iter(exec_list_iterator, iter, ir->body_instructions) {
 455       ir_instruction *const inst = (ir_instruction *) iter.get();
 456
 457       indent();
 458       inst->accept(this);
 459       printf("\n");
 460    }
 461    indentation--;
 462    indent();
 463    printf("))\n");
 464 }
 465
 466
 467 void
 468 ir_print_visitor::visit(ir_loop_jump *ir)
 469 {
 470    printf("%s", ir->is_break() ? "break" : "continue");
 471 }