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    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(" (%d %d %d) ", ir->offsets[0], ir->offsets[1], ir->offsets[2]);
 196
 197    if (ir->op != ir_txf) {
 198       if (ir->projector)
 199          ir->projector->accept(this);
 200       else
 201          printf("1");
 202
 203       if (ir->shadow_comparitor) {
 204          printf(" ");
 205          ir->shadow_comparitor->accept(this);
 206       } else {
 207          printf(" ()");
 208       }
 209    }
 210
 211    printf(" ");
 212    switch (ir->op)
 213    {
 214    case ir_tex:
 215       break;
 216    case ir_txb:
 217       ir->lod_info.bias->accept(this);
 218       break;
 219    case ir_txl:
 220    case ir_txf:
 221       ir->lod_info.lod->accept(this);
 222       break;
 223    case ir_txd:
 224       printf("(");
 225       ir->lod_info.grad.dPdx->accept(this);
 226       printf(" ");
 227       ir->lod_info.grad.dPdy->accept(this);
 228       printf(")");
 229       break;
 230    };
 231    printf(")");
 232 }
 233
 234
 235 void ir_print_visitor::visit(ir_swizzle *ir)
 236 {
 237    const unsigned swiz[4] = {
 238       ir->mask.x,
 239       ir->mask.y,
 240       ir->mask.z,
 241       ir->mask.w,
 242    };
 243
 244    printf("(swiz ");
 245    for (unsigned i = 0; i < ir->mask.num_components; i++) {
 246       printf("%c", "xyzw"[swiz[i]]);
 247    }
 248    printf(" ");
 249    ir->val->accept(this);
 250    printf(")");
 251 }
 252
 253
 254 void ir_print_visitor::visit(ir_dereference_variable *ir)
 255 {
 256    ir_variable *var = ir->variable_referenced();
 257    printf("(var_ref %s@%p) ", var->name, (void *) var);
 258 }
 259
 260
 261 void ir_print_visitor::visit(ir_dereference_array *ir)
 262 {
 263    printf("(array_ref ");
 264    ir->array->accept(this);
 265    ir->array_index->accept(this);
 266    printf(") ");
 267 }
 268
 269
 270 void ir_print_visitor::visit(ir_dereference_record *ir)
 271 {
 272    printf("(record_ref ");
 273    ir->record->accept(this);
 274    printf(" %s) ", ir->field);
 275 }
 276
 277
 278 void ir_print_visitor::visit(ir_assignment *ir)
 279 {
 280    printf("(assign ");
 281
 282    if (ir->condition)
 283       ir->condition->accept(this);
 284    else
 285       printf("(constant bool (1))");
 286
 287
 288    char mask[5];
 289    unsigned j = 0;
 290
 291    for (unsigned i = 0; i < 4; i++) {
 292       if ((ir->write_mask & (1 << i)) != 0) {
 293          mask[j] = "xyzw"[i];
 294          j++;
 295       }
 296    }
 297    mask[j] = '\0';
 298
 299    printf(" (%s) ", mask);
 300
 301    ir->lhs->accept(this);
 302
 303    printf(" ");
 304
 305    ir->rhs->accept(this);
 306    printf(") ");
 307 }
 308
 309
 310 void ir_print_visitor::visit(ir_constant *ir)
 311 {
 312    const glsl_type *const base_type = ir->type->get_base_type();
 313
 314    printf("(constant ");
 315    print_type(ir->type);
 316    printf(" (");
 317
 318    if (ir->type->is_array()) {
 319       for (unsigned i = 0; i < ir->type->length; i++)
 320          ir->get_array_element(i)->accept(this);
 321    } else {
 322       for (unsigned i = 0; i < ir->type->components(); i++) {
 323          if (i != 0)
 324             printf(" ");
 325          switch (base_type->base_type) {
 326          case GLSL_TYPE_UINT:  printf("%u", ir->value.u[i]); break;
 327          case GLSL_TYPE_INT:   printf("%d", ir->value.i[i]); break;
 328          case GLSL_TYPE_FLOAT: printf("%f", ir->value.f[i]); break;
 329          case GLSL_TYPE_BOOL:  printf("%d", ir->value.b[i]); break;
 330          default: assert(0);
 331          }
 332       }
 333    }
 334    printf(")) ");
 335 }
 336
 337
 338 void
 339 ir_print_visitor::visit(ir_call *ir)
 340 {
 341    printf("(call %s (", ir->callee_name());
 342    foreach_iter(exec_list_iterator, iter, *ir) {
 343       ir_instruction *const inst = (ir_instruction *) iter.get();
 344
 345       inst->accept(this);
 346    }
 347    printf("))\n");
 348 }
 349
 350
 351 void
 352 ir_print_visitor::visit(ir_return *ir)
 353 {
 354    printf("(return");
 355
 356    ir_rvalue *const value = ir->get_value();
 357    if (value) {
 358       printf(" ");
 359       value->accept(this);
 360    }
 361
 362    printf(")");
 363 }
 364
 365
 366 void
 367 ir_print_visitor::visit(ir_discard *ir)
 368 {
 369    printf("(discard ");
 370
 371    if (ir->condition != NULL) {
 372       printf(" ");
 373       ir->condition->accept(this);
 374    }
 375
 376    printf(")");
 377 }
 378
 379
 380 void
 381 ir_print_visitor::visit(ir_if *ir)
 382 {
 383    printf("(if ");
 384    ir->condition->accept(this);
 385
 386    printf("(\n");
 387    indentation++;
 388
 389    foreach_iter(exec_list_iterator, iter, ir->then_instructions) {
 390       ir_instruction *const inst = (ir_instruction *) iter.get();
 391
 392       indent();
 393       inst->accept(this);
 394       printf("\n");
 395    }
 396
 397    indentation--;
 398    indent();
 399    printf(")\n");
 400
 401    indent();
 402    if (!ir->else_instructions.is_empty()) {
 403       printf("(\n");
 404       indentation++;
 405
 406       foreach_iter(exec_list_iterator, iter, ir->else_instructions) {
 407          ir_instruction *const inst = (ir_instruction *) iter.get();
 408
 409          indent();
 410          inst->accept(this);
 411          printf("\n");
 412       }
 413       indentation--;
 414       indent();
 415       printf("))\n");
 416    } else {
 417       printf("())\n");
 418    }
 419 }
 420
 421
 422 void
 423 ir_print_visitor::visit(ir_loop *ir)
 424 {
 425    printf("(loop (");
 426    if (ir->counter != NULL)
 427       ir->counter->accept(this);
 428    printf(") (");
 429    if (ir->from != NULL)
 430       ir->from->accept(this);
 431    printf(") (");
 432    if (ir->to != NULL)
 433       ir->to->accept(this);
 434    printf(") (");
 435    if (ir->increment != NULL)
 436       ir->increment->accept(this);
 437    printf(") (\n");
 438    indentation++;
 439
 440    foreach_iter(exec_list_iterator, iter, ir->body_instructions) {
 441       ir_instruction *const inst = (ir_instruction *) iter.get();
 442
 443       indent();
 444       inst->accept(this);
 445       printf("\n");
 446    }
 447    indentation--;
 448    indent();
 449    printf("))\n");
 450 }
 451
 452
 453 void
 454 ir_print_visitor::visit(ir_loop_jump *ir)
 455 {
 456    printf("%s", ir->is_break() ? "break" : "continue");
 457 }