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    if (ir->operands[0])
 186       ir->operands[0]->accept(this);
 187
 188    if (ir->operands[1])
 189       ir->operands[1]->accept(this);
 190    printf(") ");
 191 }
 192
 193
 194 void ir_print_visitor::visit(ir_texture *ir)
 195 {
 196    printf("(%s ", ir->opcode_string());
 197
 198    ir->sampler->accept(this);
 199    printf(" ");
 200
 201    ir->coordinate->accept(this);
 202
 203    printf(" (%d %d %d) ", ir->offsets[0], ir->offsets[1], ir->offsets[2]);
 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    else
 293       printf("(constant bool (1))");
 294
 295
 296    char mask[5];
 297    unsigned j = 0;
 298
 299    for (unsigned i = 0; i < 4; i++) {
 300       if ((ir->write_mask & (1 << i)) != 0) {
 301          mask[j] = "xyzw"[i];
 302          j++;
 303       }
 304    }
 305    mask[j] = '\0';
 306
 307    printf(" (%s) ", mask);
 308
 309    ir->lhs->accept(this);
 310
 311    printf(" ");
 312
 313    ir->rhs->accept(this);
 314    printf(") ");
 315 }
 316
 317
 318 void ir_print_visitor::visit(ir_constant *ir)
 319 {
 320    const glsl_type *const base_type = ir->type->get_base_type();
 321
 322    printf("(constant ");
 323    print_type(ir->type);
 324    printf(" (");
 325
 326    if (ir->type->is_array()) {
 327       for (unsigned i = 0; i < ir->type->length; i++)
 328          ir->get_array_element(i)->accept(this);
 329    } else {
 330       for (unsigned i = 0; i < ir->type->components(); i++) {
 331          if (i != 0)
 332             printf(" ");
 333          switch (base_type->base_type) {
 334          case GLSL_TYPE_UINT:  printf("%u", ir->value.u[i]); break;
 335          case GLSL_TYPE_INT:   printf("%d", ir->value.i[i]); break;
 336          case GLSL_TYPE_FLOAT: printf("%f", ir->value.f[i]); break;
 337          case GLSL_TYPE_BOOL:  printf("%d", ir->value.b[i]); break;
 338          default: assert(0);
 339          }
 340       }
 341    }
 342    printf(")) ");
 343 }
 344
 345
 346 void
 347 ir_print_visitor::visit(ir_call *ir)
 348 {
 349    printf("(call %s (", ir->callee_name());
 350    foreach_iter(exec_list_iterator, iter, *ir) {
 351       ir_instruction *const inst = (ir_instruction *) iter.get();
 352
 353       inst->accept(this);
 354    }
 355    printf("))\n");
 356 }
 357
 358
 359 void
 360 ir_print_visitor::visit(ir_return *ir)
 361 {
 362    printf("(return");
 363
 364    ir_rvalue *const value = ir->get_value();
 365    if (value) {
 366       printf(" ");
 367       value->accept(this);
 368    }
 369
 370    printf(")");
 371 }
 372
 373
 374 void
 375 ir_print_visitor::visit(ir_discard *ir)
 376 {
 377    printf("(discard ");
 378
 379    if (ir->condition != NULL) {
 380       printf(" ");
 381       ir->condition->accept(this);
 382    }
 383
 384    printf(")");
 385 }
 386
 387
 388 void
 389 ir_print_visitor::visit(ir_if *ir)
 390 {
 391    printf("(if ");
 392    ir->condition->accept(this);
 393
 394    printf("(\n");
 395    indentation++;
 396
 397    foreach_iter(exec_list_iterator, iter, ir->then_instructions) {
 398       ir_instruction *const inst = (ir_instruction *) iter.get();
 399
 400       indent();
 401       inst->accept(this);
 402       printf("\n");
 403    }
 404
 405    indentation--;
 406    indent();
 407    printf(")\n");
 408
 409    indent();
 410    if (!ir->else_instructions.is_empty()) {
 411       printf("(\n");
 412       indentation++;
 413
 414       foreach_iter(exec_list_iterator, iter, ir->else_instructions) {
 415          ir_instruction *const inst = (ir_instruction *) iter.get();
 416
 417          indent();
 418          inst->accept(this);
 419          printf("\n");
 420       }
 421       indentation--;
 422       indent();
 423       printf("))\n");
 424    } else {
 425       printf("())\n");
 426    }
 427 }
 428
 429
 430 void
 431 ir_print_visitor::visit(ir_loop *ir)
 432 {
 433    printf("(loop (");
 434    if (ir->counter != NULL)
 435       ir->counter->accept(this);
 436    printf(") (");
 437    if (ir->from != NULL)
 438       ir->from->accept(this);
 439    printf(") (");
 440    if (ir->to != NULL)
 441       ir->to->accept(this);
 442    printf(") (");
 443    if (ir->increment != NULL)
 444       ir->increment->accept(this);
 445    printf(") (\n");
 446    indentation++;
 447
 448    foreach_iter(exec_list_iterator, iter, ir->body_instructions) {
 449       ir_instruction *const inst = (ir_instruction *) iter.get();
 450
 451       indent();
 452       inst->accept(this);
 453       printf("\n");
 454    }
 455    indentation--;
 456    indent();
 457    printf("))\n");
 458 }
 459
 460
 461 void
 462 ir_print_visitor::visit(ir_loop_jump *ir)
 463 {
 464    printf("%s", ir->is_break() ? "break" : "continue");
 465 }