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, 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, 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, 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    bool found_non_builtin_proto = false;
 157
 158    foreach_iter(exec_list_iterator, iter, *ir) {
 159       ir_function_signature *const sig = (ir_function_signature *) iter.get();
 160       if (sig->is_defined || !sig->is_built_in)
 161          found_non_builtin_proto = true;
 162    }
 163    if (!found_non_builtin_proto)
 164       return;
 165
 166    printf("(function %s\n", ir->name);
 167    indentation++;
 168    foreach_iter(exec_list_iterator, iter, *ir) {
 169       ir_function_signature *const sig = (ir_function_signature *) iter.get();
 170
 171       indent();
 172       sig->accept(this);
 173       printf("\n");
 174    }
 175    indentation--;
 176    indent();
 177    printf(")\n\n");
 178 }
 179
 180
 181 void ir_print_visitor::visit(ir_expression *ir)
 182 {
 183    printf("(expression ");
 184
 185    print_type(ir->type);
 186
 187    printf(" %s ", ir->operator_string());
 188
 189    if (ir->operands[0])
 190       ir->operands[0]->accept(this);
 191
 192    if (ir->operands[1])
 193       ir->operands[1]->accept(this);
 194    printf(") ");
 195 }
 196
 197
 198 void ir_print_visitor::visit(ir_texture *ir)
 199 {
 200    printf("(%s ", ir->opcode_string());
 201
 202    ir->sampler->accept(this);
 203    printf(" ");
 204
 205    ir->coordinate->accept(this);
 206
 207    printf(" (%d %d %d) ", ir->offsets[0], ir->offsets[1], ir->offsets[2]);
 208
 209    if (ir->op != ir_txf) {
 210       if (ir->projector)
 211          ir->projector->accept(this);
 212       else
 213          printf("1");
 214
 215       if (ir->shadow_comparitor) {
 216          printf(" ");
 217          ir->shadow_comparitor->accept(this);
 218       } else {
 219          printf(" ()");
 220       }
 221    }
 222
 223    printf(" ");
 224    switch (ir->op)
 225    {
 226    case ir_tex:
 227       break;
 228    case ir_txb:
 229       ir->lod_info.bias->accept(this);
 230       break;
 231    case ir_txl:
 232    case ir_txf:
 233       ir->lod_info.lod->accept(this);
 234       break;
 235    case ir_txd:
 236       printf("(");
 237       ir->lod_info.grad.dPdx->accept(this);
 238       printf(" ");
 239       ir->lod_info.grad.dPdy->accept(this);
 240       printf(")");
 241       break;
 242    };
 243    printf(")");
 244 }
 245
 246
 247 void ir_print_visitor::visit(ir_swizzle *ir)
 248 {
 249    const unsigned swiz[4] = {
 250       ir->mask.x,
 251       ir->mask.y,
 252       ir->mask.z,
 253       ir->mask.w,
 254    };
 255
 256    printf("(swiz ");
 257    for (unsigned i = 0; i < ir->mask.num_components; i++) {
 258       printf("%c", "xyzw"[swiz[i]]);
 259    }
 260    printf(" ");
 261    ir->val->accept(this);
 262    printf(")");
 263 }
 264
 265
 266 void ir_print_visitor::visit(ir_dereference_variable *ir)
 267 {
 268    ir_variable *var = ir->variable_referenced();
 269    printf("(var_ref %s@%p) ", var->name, var);
 270 }
 271
 272
 273 void ir_print_visitor::visit(ir_dereference_array *ir)
 274 {
 275    printf("(array_ref ");
 276    ir->array->accept(this);
 277    ir->array_index->accept(this);
 278    printf(") ");
 279 }
 280
 281
 282 void ir_print_visitor::visit(ir_dereference_record *ir)
 283 {
 284    printf("(record_ref ");
 285    ir->record->accept(this);
 286    printf(" %s) ", ir->field);
 287 }
 288
 289
 290 void ir_print_visitor::visit(ir_assignment *ir)
 291 {
 292    printf("(assign ");
 293
 294    if (ir->condition)
 295       ir->condition->accept(this);
 296    else
 297       printf("(constant bool (1))");
 298
 299    printf(" ");
 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    printf("(\n");
 403    indentation++;
 404
 405    foreach_iter(exec_list_iterator, iter, ir->else_instructions) {
 406       ir_instruction *const inst = (ir_instruction *) iter.get();
 407
 408       indent();
 409       inst->accept(this);
 410       printf("\n");
 411    }
 412    indentation--;
 413    indent();
 414    printf("))\n");
 415 }
 416
 417
 418 void
 419 ir_print_visitor::visit(ir_loop *ir)
 420 {
 421    printf("(loop (");
 422    if (ir->counter != NULL)
 423       ir->counter->accept(this);
 424    printf(") (");
 425    if (ir->from != NULL)
 426       ir->from->accept(this);
 427    printf(") (");
 428    if (ir->to != NULL)
 429       ir->to->accept(this);
 430    printf(") (");
 431    if (ir->increment != NULL)
 432       ir->increment->accept(this);
 433    printf(") (\n");
 434    indentation++;
 435
 436    foreach_iter(exec_list_iterator, iter, ir->body_instructions) {
 437       ir_instruction *const inst = (ir_instruction *) iter.get();
 438
 439       indent();
 440       inst->accept(this);
 441       printf("\n");
 442    }
 443    indentation--;
 444    indent();
 445    printf("))\n");
 446 }
 447
 448
 449 void
 450 ir_print_visitor::visit(ir_loop_jump *ir)
 451 {
 452    printf("%s", ir->is_break() ? "break" : "continue");
 453 }