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
 161       if (sig->is_builtin)
 162          continue;
 163
 164       indent();
 165       sig->accept(this);
 166       printf("\n");
 167    }
 168    indentation--;
 169    indent();
 170    printf(")\n\n");
 171 }
 172
 173
 174 void ir_print_visitor::visit(ir_expression *ir)
 175 {
 176    printf("(expression ");
 177
 178    print_type(ir->type);
 179
 180    printf(" %s ", ir->operator_string());
 181
 182    if (ir->operands[0])
 183       ir->operands[0]->accept(this);
 184
 185    if (ir->operands[1])
 186       ir->operands[1]->accept(this);
 187    printf(") ");
 188 }
 189
 190
 191 void ir_print_visitor::visit(ir_texture *ir)
 192 {
 193    printf("(%s ", ir->opcode_string());
 194
 195    ir->sampler->accept(this);
 196    printf(" ");
 197
 198    ir->coordinate->accept(this);
 199
 200    printf(" (%d %d %d) ", ir->offsets[0], ir->offsets[1], ir->offsets[2]);
 201
 202    if (ir->op != ir_txf) {
 203       if (ir->projector)
 204          ir->projector->accept(this);
 205       else
 206          printf("1");
 207
 208       if (ir->shadow_comparitor) {
 209          printf(" ");
 210          ir->shadow_comparitor->accept(this);
 211       } else {
 212          printf(" ()");
 213       }
 214    }
 215
 216    printf(" ");
 217    switch (ir->op)
 218    {
 219    case ir_tex:
 220       break;
 221    case ir_txb:
 222       ir->lod_info.bias->accept(this);
 223       break;
 224    case ir_txl:
 225    case ir_txf:
 226       ir->lod_info.lod->accept(this);
 227       break;
 228    case ir_txd:
 229       printf("(");
 230       ir->lod_info.grad.dPdx->accept(this);
 231       printf(" ");
 232       ir->lod_info.grad.dPdy->accept(this);
 233       printf(")");
 234       break;
 235    };
 236    printf(")");
 237 }
 238
 239
 240 void ir_print_visitor::visit(ir_swizzle *ir)
 241 {
 242    const unsigned swiz[4] = {
 243       ir->mask.x,
 244       ir->mask.y,
 245       ir->mask.z,
 246       ir->mask.w,
 247    };
 248
 249    printf("(swiz ");
 250    for (unsigned i = 0; i < ir->mask.num_components; i++) {
 251       printf("%c", "xyzw"[swiz[i]]);
 252    }
 253    printf(" ");
 254    ir->val->accept(this);
 255    printf(")");
 256 }
 257
 258
 259 void ir_print_visitor::visit(ir_dereference_variable *ir)
 260 {
 261    ir_variable *var = ir->variable_referenced();
 262    printf("(var_ref %s@%p) ", var->name, (void *) var);
 263 }
 264
 265
 266 void ir_print_visitor::visit(ir_dereference_array *ir)
 267 {
 268    printf("(array_ref ");
 269    ir->array->accept(this);
 270    ir->array_index->accept(this);
 271    printf(") ");
 272 }
 273
 274
 275 void ir_print_visitor::visit(ir_dereference_record *ir)
 276 {
 277    printf("(record_ref ");
 278    ir->record->accept(this);
 279    printf(" %s) ", ir->field);
 280 }
 281
 282
 283 void ir_print_visitor::visit(ir_assignment *ir)
 284 {
 285    printf("(assign ");
 286
 287    if (ir->condition)
 288       ir->condition->accept(this);
 289    else
 290       printf("(constant bool (1))");
 291
 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 {
 327       for (unsigned i = 0; i < ir->type->components(); i++) {
 328          if (i != 0)
 329             printf(" ");
 330          switch (base_type->base_type) {
 331          case GLSL_TYPE_UINT:  printf("%u", ir->value.u[i]); break;
 332          case GLSL_TYPE_INT:   printf("%d", ir->value.i[i]); break;
 333          case GLSL_TYPE_FLOAT: printf("%f", ir->value.f[i]); break;
 334          case GLSL_TYPE_BOOL:  printf("%d", ir->value.b[i]); break;
 335          default: assert(0);
 336          }
 337       }
 338    }
 339    printf(")) ");
 340 }
 341
 342
 343 void
 344 ir_print_visitor::visit(ir_call *ir)
 345 {
 346    printf("(call %s (", ir->callee_name());
 347    foreach_iter(exec_list_iterator, iter, *ir) {
 348       ir_instruction *const inst = (ir_instruction *) iter.get();
 349
 350       inst->accept(this);
 351    }
 352    printf("))\n");
 353 }
 354
 355
 356 void
 357 ir_print_visitor::visit(ir_return *ir)
 358 {
 359    printf("(return");
 360
 361    ir_rvalue *const value = ir->get_value();
 362    if (value) {
 363       printf(" ");
 364       value->accept(this);
 365    }
 366
 367    printf(")");
 368 }
 369
 370
 371 void
 372 ir_print_visitor::visit(ir_discard *ir)
 373 {
 374    printf("(discard ");
 375
 376    if (ir->condition != NULL) {
 377       printf(" ");
 378       ir->condition->accept(this);
 379    }
 380
 381    printf(")");
 382 }
 383
 384
 385 void
 386 ir_print_visitor::visit(ir_if *ir)
 387 {
 388    printf("(if ");
 389    ir->condition->accept(this);
 390
 391    printf("(\n");
 392    indentation++;
 393
 394    foreach_iter(exec_list_iterator, iter, ir->then_instructions) {
 395       ir_instruction *const inst = (ir_instruction *) iter.get();
 396
 397       indent();
 398       inst->accept(this);
 399       printf("\n");
 400    }
 401
 402    indentation--;
 403    indent();
 404    printf(")\n");
 405
 406    indent();
 407    if (!ir->else_instructions.is_empty()) {
 408       printf("(\n");
 409       indentation++;
 410
 411       foreach_iter(exec_list_iterator, iter, ir->else_instructions) {
 412          ir_instruction *const inst = (ir_instruction *) iter.get();
 413
 414          indent();
 415          inst->accept(this);
 416          printf("\n");
 417       }
 418       indentation--;
 419       indent();
 420       printf("))\n");
 421    } else {
 422       printf("())\n");
 423    }
 424 }
 425
 426
 427 void
 428 ir_print_visitor::visit(ir_loop *ir)
 429 {
 430    printf("(loop (");
 431    if (ir->counter != NULL)
 432       ir->counter->accept(this);
 433    printf(") (");
 434    if (ir->from != NULL)
 435       ir->from->accept(this);
 436    printf(") (");
 437    if (ir->to != NULL)
 438       ir->to->accept(this);
 439    printf(") (");
 440    if (ir->increment != NULL)
 441       ir->increment->accept(this);
 442    printf(") (\n");
 443    indentation++;
 444
 445    foreach_iter(exec_list_iterator, iter, ir->body_instructions) {
 446       ir_instruction *const inst = (ir_instruction *) iter.get();
 447
 448       indent();
 449       inst->accept(this);
 450       printf("\n");
 451    }
 452    indentation--;
 453    indent();
 454    printf("))\n");
 455 }
 456
 457
 458 void
 459 ir_print_visitor::visit(ir_loop_jump *ir)
 460 {
 461    printf("%s", ir->is_break() ? "break" : "continue");
 462 }