1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "gpu/command_buffer/service/program_manager.h" 6 7 #include <algorithm> 8 #include <set> 9 #include <utility> 10 #include <vector> 11 12 #include "base/basictypes.h" 13 #include "base/command_line.h" 14 #include "base/logging.h" 15 #include "base/memory/scoped_ptr.h" 16 #include "base/metrics/histogram.h" 17 #include "base/strings/string_number_conversions.h" 18 #include "base/time/time.h" 19 #include "gpu/command_buffer/common/gles2_cmd_format.h" 20 #include "gpu/command_buffer/common/gles2_cmd_utils.h" 21 #include "gpu/command_buffer/service/gles2_cmd_decoder.h" 22 #include "gpu/command_buffer/service/gpu_switches.h" 23 #include "gpu/command_buffer/service/program_cache.h" 24 #include "gpu/command_buffer/service/shader_manager.h" 25 #include "gpu/command_buffer/service/shader_translator.h" 26 #include "third_party/re2/re2/re2.h" 27 28 using base::TimeDelta; 29 using base::TimeTicks; 30 31 namespace gpu { 32 namespace gles2 { 33 34 namespace { 35 36 struct UniformType { 37 explicit UniformType(const ShaderTranslator::VariableInfo uniform) 38 : type(uniform.type), 39 size(uniform.size), 40 precision(uniform.precision) { } 41 42 UniformType() 43 : type(0), 44 size(0), 45 precision(SH_PRECISION_MEDIUMP) { } 46 47 bool operator==(const UniformType& other) const { 48 return type == other.type && 49 size == other.size && 50 precision == other.precision; 51 } 52 53 int type; 54 int size; 55 int precision; 56 }; 57 58 int ShaderTypeToIndex(GLenum shader_type) { 59 switch (shader_type) { 60 case GL_VERTEX_SHADER: 61 return 0; 62 case GL_FRAGMENT_SHADER: 63 return 1; 64 default: 65 NOTREACHED(); 66 return 0; 67 } 68 } 69 70 // Given a name like "foo.bar[123].moo[456]" sets new_name to "foo.bar[123].moo" 71 // and sets element_index to 456. returns false if element expression was not a 72 // whole decimal number. For example: "foo[1b2]" 73 bool GetUniformNameSansElement( 74 const std::string& name, int* element_index, std::string* new_name) { 75 DCHECK(element_index); 76 DCHECK(new_name); 77 if (name.size() < 3 || name[name.size() - 1] != ']') { 78 *element_index = 0; 79 *new_name = name; 80 return true; 81 } 82 83 // Look for an array specification. 84 size_t open_pos = name.find_last_of('['); 85 if (open_pos == std::string::npos || 86 open_pos >= name.size() - 2) { 87 return false; 88 } 89 90 GLint index = 0; 91 size_t last = name.size() - 1; 92 for (size_t pos = open_pos + 1; pos < last; ++pos) { 93 int8 digit = name[pos] - '0'; 94 if (digit < 0 || digit > 9) { 95 return false; 96 } 97 index = index * 10 + digit; 98 } 99 100 *element_index = index; 101 *new_name = name.substr(0, open_pos); 102 return true; 103 } 104 105 bool IsBuiltInVarying(const std::string& name) { 106 // Built-in variables. 107 const char* kBuiltInVaryings[] = { 108 "gl_FragCoord", 109 "gl_FrontFacing", 110 "gl_PointCoord" 111 }; 112 for (size_t ii = 0; ii < arraysize(kBuiltInVaryings); ++ii) { 113 if (name == kBuiltInVaryings[ii]) 114 return true; 115 } 116 return false; 117 } 118 119 } // anonymous namespace. 120 121 Program::UniformInfo::UniformInfo() 122 : size(0), 123 type(GL_NONE), 124 fake_location_base(0), 125 is_array(false) { 126 } 127 128 Program::UniformInfo::UniformInfo(GLsizei _size, 129 GLenum _type, 130 int _fake_location_base, 131 const std::string& _name) 132 : size(_size), 133 type(_type), 134 accepts_api_type(0), 135 fake_location_base(_fake_location_base), 136 is_array(false), 137 name(_name) { 138 switch (type) { 139 case GL_INT: 140 accepts_api_type = kUniform1i; 141 break; 142 case GL_INT_VEC2: 143 accepts_api_type = kUniform2i; 144 break; 145 case GL_INT_VEC3: 146 accepts_api_type = kUniform3i; 147 break; 148 case GL_INT_VEC4: 149 accepts_api_type = kUniform4i; 150 break; 151 152 case GL_BOOL: 153 accepts_api_type = kUniform1i | kUniform1f; 154 break; 155 case GL_BOOL_VEC2: 156 accepts_api_type = kUniform2i | kUniform2f; 157 break; 158 case GL_BOOL_VEC3: 159 accepts_api_type = kUniform3i | kUniform3f; 160 break; 161 case GL_BOOL_VEC4: 162 accepts_api_type = kUniform4i | kUniform4f; 163 break; 164 165 case GL_FLOAT: 166 accepts_api_type = kUniform1f; 167 break; 168 case GL_FLOAT_VEC2: 169 accepts_api_type = kUniform2f; 170 break; 171 case GL_FLOAT_VEC3: 172 accepts_api_type = kUniform3f; 173 break; 174 case GL_FLOAT_VEC4: 175 accepts_api_type = kUniform4f; 176 break; 177 178 case GL_FLOAT_MAT2: 179 accepts_api_type = kUniformMatrix2f; 180 break; 181 case GL_FLOAT_MAT3: 182 accepts_api_type = kUniformMatrix3f; 183 break; 184 case GL_FLOAT_MAT4: 185 accepts_api_type = kUniformMatrix4f; 186 break; 187 188 case GL_SAMPLER_2D: 189 case GL_SAMPLER_2D_RECT_ARB: 190 case GL_SAMPLER_CUBE: 191 case GL_SAMPLER_3D_OES: 192 case GL_SAMPLER_EXTERNAL_OES: 193 accepts_api_type = kUniform1i; 194 break; 195 default: 196 NOTREACHED() << "Unhandled UniformInfo type " << type; 197 break; 198 } 199 } 200 201 Program::UniformInfo::~UniformInfo() {} 202 203 bool ProgramManager::IsInvalidPrefix(const char* name, size_t length) { 204 static const char kInvalidPrefix[] = { 'g', 'l', '_' }; 205 return (length >= sizeof(kInvalidPrefix) && 206 memcmp(name, kInvalidPrefix, sizeof(kInvalidPrefix)) == 0); 207 } 208 209 Program::Program( 210 ProgramManager* manager, GLuint service_id) 211 : manager_(manager), 212 use_count_(0), 213 max_attrib_name_length_(0), 214 max_uniform_name_length_(0), 215 service_id_(service_id), 216 deleted_(false), 217 valid_(false), 218 link_status_(false), 219 uniforms_cleared_(false), 220 num_uniforms_(0) { 221 manager_->StartTracking(this); 222 } 223 224 void Program::Reset() { 225 valid_ = false; 226 link_status_ = false; 227 num_uniforms_ = 0; 228 max_uniform_name_length_ = 0; 229 max_attrib_name_length_ = 0; 230 attrib_infos_.clear(); 231 uniform_infos_.clear(); 232 sampler_indices_.clear(); 233 attrib_location_to_index_map_.clear(); 234 } 235 236 std::string Program::ProcessLogInfo( 237 const std::string& log) { 238 std::string output; 239 re2::StringPiece input(log); 240 std::string prior_log; 241 std::string hashed_name; 242 while (RE2::Consume(&input, 243 "(.*?)(webgl_[0123456789abcdefABCDEF]+)", 244 &prior_log, 245 &hashed_name)) { 246 output += prior_log; 247 248 const std::string* original_name = 249 GetOriginalNameFromHashedName(hashed_name); 250 if (original_name) 251 output += *original_name; 252 else 253 output += hashed_name; 254 } 255 256 return output + input.as_string(); 257 } 258 259 void Program::UpdateLogInfo() { 260 GLint max_len = 0; 261 glGetProgramiv(service_id_, GL_INFO_LOG_LENGTH, &max_len); 262 if (max_len == 0) { 263 set_log_info(NULL); 264 return; 265 } 266 scoped_ptr<char[]> temp(new char[max_len]); 267 GLint len = 0; 268 glGetProgramInfoLog(service_id_, max_len, &len, temp.get()); 269 DCHECK(max_len == 0 || len < max_len); 270 DCHECK(len == 0 || temp[len] == '\0'); 271 std::string log(temp.get(), len); 272 set_log_info(ProcessLogInfo(log).c_str()); 273 } 274 275 void Program::ClearUniforms( 276 std::vector<uint8>* zero_buffer) { 277 DCHECK(zero_buffer); 278 if (uniforms_cleared_) { 279 return; 280 } 281 uniforms_cleared_ = true; 282 for (size_t ii = 0; ii < uniform_infos_.size(); ++ii) { 283 const UniformInfo& uniform_info = uniform_infos_[ii]; 284 if (!uniform_info.IsValid()) { 285 continue; 286 } 287 GLint location = uniform_info.element_locations[0]; 288 GLsizei size = uniform_info.size; 289 uint32 unit_size = GLES2Util::GetGLDataTypeSizeForUniforms( 290 uniform_info.type); 291 uint32 size_needed = size * unit_size; 292 if (size_needed > zero_buffer->size()) { 293 zero_buffer->resize(size_needed, 0u); 294 } 295 const void* zero = &(*zero_buffer)[0]; 296 switch (uniform_info.type) { 297 case GL_FLOAT: 298 glUniform1fv(location, size, reinterpret_cast<const GLfloat*>(zero)); 299 break; 300 case GL_FLOAT_VEC2: 301 glUniform2fv(location, size, reinterpret_cast<const GLfloat*>(zero)); 302 break; 303 case GL_FLOAT_VEC3: 304 glUniform3fv(location, size, reinterpret_cast<const GLfloat*>(zero)); 305 break; 306 case GL_FLOAT_VEC4: 307 glUniform4fv(location, size, reinterpret_cast<const GLfloat*>(zero)); 308 break; 309 case GL_INT: 310 case GL_BOOL: 311 case GL_SAMPLER_2D: 312 case GL_SAMPLER_CUBE: 313 case GL_SAMPLER_EXTERNAL_OES: 314 case GL_SAMPLER_3D_OES: 315 case GL_SAMPLER_2D_RECT_ARB: 316 glUniform1iv(location, size, reinterpret_cast<const GLint*>(zero)); 317 break; 318 case GL_INT_VEC2: 319 case GL_BOOL_VEC2: 320 glUniform2iv(location, size, reinterpret_cast<const GLint*>(zero)); 321 break; 322 case GL_INT_VEC3: 323 case GL_BOOL_VEC3: 324 glUniform3iv(location, size, reinterpret_cast<const GLint*>(zero)); 325 break; 326 case GL_INT_VEC4: 327 case GL_BOOL_VEC4: 328 glUniform4iv(location, size, reinterpret_cast<const GLint*>(zero)); 329 break; 330 case GL_FLOAT_MAT2: 331 glUniformMatrix2fv( 332 location, size, false, reinterpret_cast<const GLfloat*>(zero)); 333 break; 334 case GL_FLOAT_MAT3: 335 glUniformMatrix3fv( 336 location, size, false, reinterpret_cast<const GLfloat*>(zero)); 337 break; 338 case GL_FLOAT_MAT4: 339 glUniformMatrix4fv( 340 location, size, false, reinterpret_cast<const GLfloat*>(zero)); 341 break; 342 default: 343 NOTREACHED(); 344 break; 345 } 346 } 347 } 348 349 namespace { 350 351 struct UniformData { 352 UniformData() : size(-1), type(GL_NONE), location(0), added(false) { 353 } 354 std::string queried_name; 355 std::string corrected_name; 356 std::string original_name; 357 GLsizei size; 358 GLenum type; 359 GLint location; 360 bool added; 361 }; 362 363 struct UniformDataComparer { 364 bool operator()(const UniformData& lhs, const UniformData& rhs) const { 365 return lhs.queried_name < rhs.queried_name; 366 } 367 }; 368 369 } // anonymous namespace 370 371 void Program::Update() { 372 Reset(); 373 UpdateLogInfo(); 374 link_status_ = true; 375 uniforms_cleared_ = false; 376 GLint num_attribs = 0; 377 GLint max_len = 0; 378 GLint max_location = -1; 379 glGetProgramiv(service_id_, GL_ACTIVE_ATTRIBUTES, &num_attribs); 380 glGetProgramiv(service_id_, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &max_len); 381 // TODO(gman): Should we check for error? 382 scoped_ptr<char[]> name_buffer(new char[max_len]); 383 for (GLint ii = 0; ii < num_attribs; ++ii) { 384 GLsizei length = 0; 385 GLsizei size = 0; 386 GLenum type = 0; 387 glGetActiveAttrib( 388 service_id_, ii, max_len, &length, &size, &type, name_buffer.get()); 389 DCHECK(max_len == 0 || length < max_len); 390 DCHECK(length == 0 || name_buffer[length] == '\0'); 391 if (!ProgramManager::IsInvalidPrefix(name_buffer.get(), length)) { 392 std::string name; 393 std::string original_name; 394 GetCorrectedVariableInfo( 395 false, name_buffer.get(), &name, &original_name, &size, &type); 396 // TODO(gman): Should we check for error? 397 GLint location = glGetAttribLocation(service_id_, name_buffer.get()); 398 if (location > max_location) { 399 max_location = location; 400 } 401 attrib_infos_.push_back( 402 VertexAttrib(size, type, original_name, location)); 403 max_attrib_name_length_ = std::max( 404 max_attrib_name_length_, static_cast<GLsizei>(original_name.size())); 405 } 406 } 407 408 // Create attrib location to index map. 409 attrib_location_to_index_map_.resize(max_location + 1); 410 for (GLint ii = 0; ii <= max_location; ++ii) { 411 attrib_location_to_index_map_[ii] = -1; 412 } 413 for (size_t ii = 0; ii < attrib_infos_.size(); ++ii) { 414 const VertexAttrib& info = attrib_infos_[ii]; 415 attrib_location_to_index_map_[info.location] = ii; 416 } 417 418 #if !defined(NDEBUG) 419 if (CommandLine::ForCurrentProcess()->HasSwitch( 420 switches::kEnableGPUServiceLoggingGPU)) { 421 DVLOG(1) << "----: attribs for service_id: " << service_id(); 422 for (size_t ii = 0; ii < attrib_infos_.size(); ++ii) { 423 const VertexAttrib& info = attrib_infos_[ii]; 424 DVLOG(1) << ii << ": loc = " << info.location 425 << ", size = " << info.size 426 << ", type = " << GLES2Util::GetStringEnum(info.type) 427 << ", name = " << info.name; 428 } 429 } 430 #endif 431 432 max_len = 0; 433 GLint num_uniforms = 0; 434 glGetProgramiv(service_id_, GL_ACTIVE_UNIFORMS, &num_uniforms); 435 glGetProgramiv(service_id_, GL_ACTIVE_UNIFORM_MAX_LENGTH, &max_len); 436 name_buffer.reset(new char[max_len]); 437 438 // Reads all the names. 439 std::vector<UniformData> uniform_data; 440 for (GLint ii = 0; ii < num_uniforms; ++ii) { 441 GLsizei length = 0; 442 UniformData data; 443 glGetActiveUniform( 444 service_id_, ii, max_len, &length, 445 &data.size, &data.type, name_buffer.get()); 446 DCHECK(max_len == 0 || length < max_len); 447 DCHECK(length == 0 || name_buffer[length] == '\0'); 448 if (!ProgramManager::IsInvalidPrefix(name_buffer.get(), length)) { 449 data.queried_name = std::string(name_buffer.get()); 450 GetCorrectedVariableInfo( 451 true, name_buffer.get(), &data.corrected_name, &data.original_name, 452 &data.size, &data.type); 453 uniform_data.push_back(data); 454 } 455 } 456 457 // NOTE: We don't care if 2 uniforms are bound to the same location. 458 // One of them will take preference. The spec allows this, same as 459 // BindAttribLocation. 460 // 461 // The reason we don't check is if we were to fail we'd have to 462 // restore the previous program but since we've already linked successfully 463 // at this point the previous program is gone. 464 465 // Assigns the uniforms with bindings. 466 size_t next_available_index = 0; 467 for (size_t ii = 0; ii < uniform_data.size(); ++ii) { 468 UniformData& data = uniform_data[ii]; 469 data.location = glGetUniformLocation( 470 service_id_, data.queried_name.c_str()); 471 // remove "[0]" 472 std::string short_name; 473 int element_index = 0; 474 bool good ALLOW_UNUSED = GetUniformNameSansElement( 475 data.queried_name, &element_index, &short_name);\ 476 DCHECK(good); 477 LocationMap::const_iterator it = bind_uniform_location_map_.find( 478 short_name); 479 if (it != bind_uniform_location_map_.end()) { 480 data.added = AddUniformInfo( 481 data.size, data.type, data.location, it->second, data.corrected_name, 482 data.original_name, &next_available_index); 483 } 484 } 485 486 // Assigns the uniforms that were not bound. 487 for (size_t ii = 0; ii < uniform_data.size(); ++ii) { 488 const UniformData& data = uniform_data[ii]; 489 if (!data.added) { 490 AddUniformInfo( 491 data.size, data.type, data.location, -1, data.corrected_name, 492 data.original_name, &next_available_index); 493 } 494 } 495 496 #if !defined(NDEBUG) 497 if (CommandLine::ForCurrentProcess()->HasSwitch( 498 switches::kEnableGPUServiceLoggingGPU)) { 499 DVLOG(1) << "----: uniforms for service_id: " << service_id(); 500 for (size_t ii = 0; ii < uniform_infos_.size(); ++ii) { 501 const UniformInfo& info = uniform_infos_[ii]; 502 if (info.IsValid()) { 503 DVLOG(1) << ii << ": loc = " << info.element_locations[0] 504 << ", size = " << info.size 505 << ", type = " << GLES2Util::GetStringEnum(info.type) 506 << ", name = " << info.name; 507 } 508 } 509 } 510 #endif 511 512 valid_ = true; 513 } 514 515 void Program::ExecuteBindAttribLocationCalls() { 516 for (LocationMap::const_iterator it = bind_attrib_location_map_.begin(); 517 it != bind_attrib_location_map_.end(); ++it) { 518 const std::string* mapped_name = GetAttribMappedName(it->first); 519 if (mapped_name && *mapped_name != it->first) 520 glBindAttribLocation(service_id_, it->second, mapped_name->c_str()); 521 } 522 } 523 524 bool Program::Link(ShaderManager* manager, 525 ShaderTranslator* vertex_translator, 526 ShaderTranslator* fragment_translator, 527 Program::VaryingsPackingOption varyings_packing_option, 528 const ShaderCacheCallback& shader_callback) { 529 ClearLinkStatus(); 530 if (!CanLink()) { 531 set_log_info("missing shaders"); 532 return false; 533 } 534 if (DetectAttribLocationBindingConflicts()) { 535 set_log_info("glBindAttribLocation() conflicts"); 536 return false; 537 } 538 std::string conflicting_name; 539 if (DetectUniformsMismatch(&conflicting_name)) { 540 std::string info_log = "Uniforms with the same name but different " 541 "type/precision: " + conflicting_name; 542 set_log_info(ProcessLogInfo(info_log).c_str()); 543 return false; 544 } 545 if (DetectVaryingsMismatch(&conflicting_name)) { 546 std::string info_log = "Varyings with the same name but different type, " 547 "or statically used varyings in fragment shader are " 548 "not declared in vertex shader: " + conflicting_name; 549 set_log_info(ProcessLogInfo(info_log).c_str()); 550 return false; 551 } 552 if (DetectGlobalNameConflicts(&conflicting_name)) { 553 std::string info_log = "Name conflicts between an uniform and an " 554 "attribute: " + conflicting_name; 555 set_log_info(ProcessLogInfo(info_log).c_str()); 556 return false; 557 } 558 if (!CheckVaryingsPacking(varyings_packing_option)) { 559 set_log_info("Varyings over maximum register limit"); 560 return false; 561 } 562 563 TimeTicks before_time = TimeTicks::HighResNow(); 564 bool link = true; 565 ProgramCache* cache = manager_->program_cache_; 566 if (cache) { 567 DCHECK(!attached_shaders_[0]->signature_source().empty() && 568 !attached_shaders_[1]->signature_source().empty()); 569 ProgramCache::LinkedProgramStatus status = cache->GetLinkedProgramStatus( 570 attached_shaders_[0]->signature_source(), 571 vertex_translator, 572 attached_shaders_[1]->signature_source(), 573 fragment_translator, 574 &bind_attrib_location_map_); 575 576 if (status == ProgramCache::LINK_SUCCEEDED) { 577 ProgramCache::ProgramLoadResult success = 578 cache->LoadLinkedProgram(service_id(), 579 attached_shaders_[0].get(), 580 vertex_translator, 581 attached_shaders_[1].get(), 582 fragment_translator, 583 &bind_attrib_location_map_, 584 shader_callback); 585 link = success != ProgramCache::PROGRAM_LOAD_SUCCESS; 586 UMA_HISTOGRAM_BOOLEAN("GPU.ProgramCache.LoadBinarySuccess", !link); 587 } 588 } 589 590 if (link) { 591 ExecuteBindAttribLocationCalls(); 592 before_time = TimeTicks::HighResNow(); 593 if (cache && gfx::g_driver_gl.ext.b_GL_ARB_get_program_binary) { 594 glProgramParameteri(service_id(), 595 PROGRAM_BINARY_RETRIEVABLE_HINT, 596 GL_TRUE); 597 } 598 glLinkProgram(service_id()); 599 } 600 601 GLint success = 0; 602 glGetProgramiv(service_id(), GL_LINK_STATUS, &success); 603 if (success == GL_TRUE) { 604 Update(); 605 if (link) { 606 if (cache) { 607 cache->SaveLinkedProgram(service_id(), 608 attached_shaders_[0].get(), 609 vertex_translator, 610 attached_shaders_[1].get(), 611 fragment_translator, 612 &bind_attrib_location_map_, 613 shader_callback); 614 } 615 UMA_HISTOGRAM_CUSTOM_COUNTS( 616 "GPU.ProgramCache.BinaryCacheMissTime", 617 (TimeTicks::HighResNow() - before_time).InMicroseconds(), 618 0, 619 TimeDelta::FromSeconds(10).InMicroseconds(), 620 50); 621 } else { 622 UMA_HISTOGRAM_CUSTOM_COUNTS( 623 "GPU.ProgramCache.BinaryCacheHitTime", 624 (TimeTicks::HighResNow() - before_time).InMicroseconds(), 625 0, 626 TimeDelta::FromSeconds(1).InMicroseconds(), 627 50); 628 } 629 } else { 630 UpdateLogInfo(); 631 } 632 return success == GL_TRUE; 633 } 634 635 void Program::Validate() { 636 if (!IsValid()) { 637 set_log_info("program not linked"); 638 return; 639 } 640 glValidateProgram(service_id()); 641 UpdateLogInfo(); 642 } 643 644 GLint Program::GetUniformFakeLocation( 645 const std::string& name) const { 646 bool getting_array_location = false; 647 size_t open_pos = std::string::npos; 648 int index = 0; 649 if (!GLES2Util::ParseUniformName( 650 name, &open_pos, &index, &getting_array_location)) { 651 return -1; 652 } 653 for (GLuint ii = 0; ii < uniform_infos_.size(); ++ii) { 654 const UniformInfo& info = uniform_infos_[ii]; 655 if (!info.IsValid()) { 656 continue; 657 } 658 if (info.name == name || 659 (info.is_array && 660 info.name.compare(0, info.name.size() - 3, name) == 0)) { 661 return info.fake_location_base; 662 } else if (getting_array_location && info.is_array) { 663 // Look for an array specification. 664 size_t open_pos_2 = info.name.find_last_of('['); 665 if (open_pos_2 == open_pos && 666 name.compare(0, open_pos, info.name, 0, open_pos) == 0) { 667 if (index >= 0 && index < info.size) { 668 DCHECK_GT(static_cast<int>(info.element_locations.size()), index); 669 if (info.element_locations[index] == -1) 670 return -1; 671 return ProgramManager::MakeFakeLocation( 672 info.fake_location_base, index); 673 } 674 } 675 } 676 } 677 return -1; 678 } 679 680 GLint Program::GetAttribLocation( 681 const std::string& name) const { 682 for (GLuint ii = 0; ii < attrib_infos_.size(); ++ii) { 683 const VertexAttrib& info = attrib_infos_[ii]; 684 if (info.name == name) { 685 return info.location; 686 } 687 } 688 return -1; 689 } 690 691 const Program::UniformInfo* 692 Program::GetUniformInfoByFakeLocation( 693 GLint fake_location, GLint* real_location, GLint* array_index) const { 694 DCHECK(real_location); 695 DCHECK(array_index); 696 if (fake_location < 0) { 697 return NULL; 698 } 699 700 GLint uniform_index = GetUniformInfoIndexFromFakeLocation(fake_location); 701 if (uniform_index >= 0 && 702 static_cast<size_t>(uniform_index) < uniform_infos_.size()) { 703 const UniformInfo& uniform_info = uniform_infos_[uniform_index]; 704 if (!uniform_info.IsValid()) { 705 return NULL; 706 } 707 GLint element_index = GetArrayElementIndexFromFakeLocation(fake_location); 708 if (element_index < uniform_info.size) { 709 *real_location = uniform_info.element_locations[element_index]; 710 *array_index = element_index; 711 return &uniform_info; 712 } 713 } 714 return NULL; 715 } 716 717 const std::string* Program::GetAttribMappedName( 718 const std::string& original_name) const { 719 for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { 720 Shader* shader = attached_shaders_[ii].get(); 721 if (shader) { 722 const std::string* mapped_name = 723 shader->GetAttribMappedName(original_name); 724 if (mapped_name) 725 return mapped_name; 726 } 727 } 728 return NULL; 729 } 730 731 const std::string* Program::GetOriginalNameFromHashedName( 732 const std::string& hashed_name) const { 733 for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { 734 Shader* shader = attached_shaders_[ii].get(); 735 if (shader) { 736 const std::string* original_name = 737 shader->GetOriginalNameFromHashedName(hashed_name); 738 if (original_name) 739 return original_name; 740 } 741 } 742 return NULL; 743 } 744 745 bool Program::SetUniformLocationBinding( 746 const std::string& name, GLint location) { 747 std::string short_name; 748 int element_index = 0; 749 if (!GetUniformNameSansElement(name, &element_index, &short_name) || 750 element_index != 0) { 751 return false; 752 } 753 754 bind_uniform_location_map_[short_name] = location; 755 return true; 756 } 757 758 // Note: This is only valid to call right after a program has been linked 759 // successfully. 760 void Program::GetCorrectedVariableInfo( 761 bool use_uniforms, 762 const std::string& name, std::string* corrected_name, 763 std::string* original_name, 764 GLsizei* size, GLenum* type) const { 765 DCHECK(corrected_name); 766 DCHECK(original_name); 767 DCHECK(size); 768 DCHECK(type); 769 const char* kArraySpec = "[0]"; 770 for (int jj = 0; jj < 2; ++jj) { 771 std::string test_name(name + ((jj == 1) ? kArraySpec : "")); 772 for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { 773 Shader* shader = attached_shaders_[ii].get(); 774 if (shader) { 775 const Shader::VariableInfo* variable_info = 776 use_uniforms ? shader->GetUniformInfo(test_name) : 777 shader->GetAttribInfo(test_name); 778 // Note: There is an assuption here that if an attrib is defined in more 779 // than 1 attached shader their types and sizes match. Should we check 780 // for that case? 781 if (variable_info) { 782 *corrected_name = test_name; 783 *original_name = variable_info->name; 784 *type = variable_info->type; 785 *size = variable_info->size; 786 return; 787 } 788 } 789 } 790 } 791 *corrected_name = name; 792 *original_name = name; 793 } 794 795 bool Program::AddUniformInfo( 796 GLsizei size, GLenum type, GLint location, GLint fake_base_location, 797 const std::string& name, const std::string& original_name, 798 size_t* next_available_index) { 799 DCHECK(next_available_index); 800 const char* kArraySpec = "[0]"; 801 size_t uniform_index = 802 fake_base_location >= 0 ? fake_base_location : *next_available_index; 803 if (uniform_infos_.size() < uniform_index + 1) { 804 uniform_infos_.resize(uniform_index + 1); 805 } 806 807 // return if this location is already in use. 808 if (uniform_infos_[uniform_index].IsValid()) { 809 DCHECK_GE(fake_base_location, 0); 810 return false; 811 } 812 813 uniform_infos_[uniform_index] = UniformInfo( 814 size, type, uniform_index, original_name); 815 ++num_uniforms_; 816 817 UniformInfo& info = uniform_infos_[uniform_index]; 818 info.element_locations.resize(size); 819 info.element_locations[0] = location; 820 DCHECK_GE(size, 0); 821 size_t num_texture_units = info.IsSampler() ? static_cast<size_t>(size) : 0u; 822 info.texture_units.clear(); 823 info.texture_units.resize(num_texture_units, 0); 824 825 if (size > 1) { 826 // Go through the array element locations looking for a match. 827 // We can skip the first element because it's the same as the 828 // the location without the array operators. 829 size_t array_pos = name.rfind(kArraySpec); 830 std::string base_name = name; 831 if (name.size() > 3) { 832 if (array_pos != name.size() - 3) { 833 info.name = name + kArraySpec; 834 } else { 835 base_name = name.substr(0, name.size() - 3); 836 } 837 } 838 for (GLsizei ii = 1; ii < info.size; ++ii) { 839 std::string element_name(base_name + "[" + base::IntToString(ii) + "]"); 840 info.element_locations[ii] = 841 glGetUniformLocation(service_id_, element_name.c_str()); 842 } 843 } 844 845 info.is_array = 846 (size > 1 || 847 (info.name.size() > 3 && 848 info.name.rfind(kArraySpec) == info.name.size() - 3)); 849 850 if (info.IsSampler()) { 851 sampler_indices_.push_back(info.fake_location_base); 852 } 853 max_uniform_name_length_ = 854 std::max(max_uniform_name_length_, 855 static_cast<GLsizei>(info.name.size())); 856 857 while (*next_available_index < uniform_infos_.size() && 858 uniform_infos_[*next_available_index].IsValid()) { 859 *next_available_index = *next_available_index + 1; 860 } 861 862 return true; 863 } 864 865 const Program::UniformInfo* 866 Program::GetUniformInfo( 867 GLint index) const { 868 if (static_cast<size_t>(index) >= uniform_infos_.size()) { 869 return NULL; 870 } 871 872 const UniformInfo& info = uniform_infos_[index]; 873 return info.IsValid() ? &info : NULL; 874 } 875 876 bool Program::SetSamplers( 877 GLint num_texture_units, GLint fake_location, 878 GLsizei count, const GLint* value) { 879 if (fake_location < 0) { 880 return true; 881 } 882 GLint uniform_index = GetUniformInfoIndexFromFakeLocation(fake_location); 883 if (uniform_index >= 0 && 884 static_cast<size_t>(uniform_index) < uniform_infos_.size()) { 885 UniformInfo& info = uniform_infos_[uniform_index]; 886 if (!info.IsValid()) { 887 return false; 888 } 889 GLint element_index = GetArrayElementIndexFromFakeLocation(fake_location); 890 if (element_index < info.size) { 891 count = std::min(info.size - element_index, count); 892 if (info.IsSampler() && count > 0) { 893 for (GLsizei ii = 0; ii < count; ++ii) { 894 if (value[ii] < 0 || value[ii] >= num_texture_units) { 895 return false; 896 } 897 } 898 std::copy(value, value + count, 899 info.texture_units.begin() + element_index); 900 return true; 901 } 902 } 903 } 904 return true; 905 } 906 907 void Program::GetProgramiv(GLenum pname, GLint* params) { 908 switch (pname) { 909 case GL_ACTIVE_ATTRIBUTES: 910 *params = attrib_infos_.size(); 911 break; 912 case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH: 913 // Notice +1 to accomodate NULL terminator. 914 *params = max_attrib_name_length_ + 1; 915 break; 916 case GL_ACTIVE_UNIFORMS: 917 *params = num_uniforms_; 918 break; 919 case GL_ACTIVE_UNIFORM_MAX_LENGTH: 920 // Notice +1 to accomodate NULL terminator. 921 *params = max_uniform_name_length_ + 1; 922 break; 923 case GL_LINK_STATUS: 924 *params = link_status_; 925 break; 926 case GL_INFO_LOG_LENGTH: 927 // Notice +1 to accomodate NULL terminator. 928 *params = log_info_.get() ? (log_info_->size() + 1) : 0; 929 break; 930 case GL_DELETE_STATUS: 931 *params = deleted_; 932 break; 933 case GL_VALIDATE_STATUS: 934 if (!IsValid()) { 935 *params = GL_FALSE; 936 } else { 937 glGetProgramiv(service_id_, pname, params); 938 } 939 break; 940 default: 941 glGetProgramiv(service_id_, pname, params); 942 break; 943 } 944 } 945 946 bool Program::AttachShader( 947 ShaderManager* shader_manager, 948 Shader* shader) { 949 DCHECK(shader_manager); 950 DCHECK(shader); 951 int index = ShaderTypeToIndex(shader->shader_type()); 952 if (attached_shaders_[index].get() != NULL) { 953 return false; 954 } 955 attached_shaders_[index] = scoped_refptr<Shader>(shader); 956 shader_manager->UseShader(shader); 957 return true; 958 } 959 960 bool Program::DetachShader( 961 ShaderManager* shader_manager, 962 Shader* shader) { 963 DCHECK(shader_manager); 964 DCHECK(shader); 965 if (attached_shaders_[ShaderTypeToIndex(shader->shader_type())].get() != 966 shader) { 967 return false; 968 } 969 attached_shaders_[ShaderTypeToIndex(shader->shader_type())] = NULL; 970 shader_manager->UnuseShader(shader); 971 return true; 972 } 973 974 void Program::DetachShaders(ShaderManager* shader_manager) { 975 DCHECK(shader_manager); 976 for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { 977 if (attached_shaders_[ii].get()) { 978 DetachShader(shader_manager, attached_shaders_[ii].get()); 979 } 980 } 981 } 982 983 bool Program::CanLink() const { 984 for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { 985 if (!attached_shaders_[ii].get() || !attached_shaders_[ii]->valid()) { 986 return false; 987 } 988 } 989 return true; 990 } 991 992 bool Program::DetectAttribLocationBindingConflicts() const { 993 std::set<GLint> location_binding_used; 994 for (LocationMap::const_iterator it = bind_attrib_location_map_.begin(); 995 it != bind_attrib_location_map_.end(); ++it) { 996 // Find out if an attribute is declared in this program's shaders. 997 bool active = false; 998 for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { 999 if (!attached_shaders_[ii].get() || !attached_shaders_[ii]->valid()) 1000 continue; 1001 if (attached_shaders_[ii]->GetAttribInfo(it->first)) { 1002 active = true; 1003 break; 1004 } 1005 } 1006 if (active) { 1007 std::pair<std::set<GLint>::iterator, bool> result = 1008 location_binding_used.insert(it->second); 1009 if (!result.second) 1010 return true; 1011 } 1012 } 1013 return false; 1014 } 1015 1016 bool Program::DetectUniformsMismatch(std::string* conflicting_name) const { 1017 typedef std::map<std::string, UniformType> UniformMap; 1018 UniformMap uniform_map; 1019 for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { 1020 const ShaderTranslator::VariableMap& shader_uniforms = 1021 attached_shaders_[ii]->uniform_map(); 1022 for (ShaderTranslator::VariableMap::const_iterator iter = 1023 shader_uniforms.begin(); 1024 iter != shader_uniforms.end(); ++iter) { 1025 const std::string& name = iter->first; 1026 UniformType type(iter->second); 1027 UniformMap::iterator map_entry = uniform_map.find(name); 1028 if (map_entry == uniform_map.end()) { 1029 uniform_map[name] = type; 1030 } else { 1031 // If a uniform is already in the map, i.e., it has already been 1032 // declared by other shader, then the type and precision must match. 1033 if (map_entry->second == type) 1034 continue; 1035 *conflicting_name = name; 1036 return true; 1037 } 1038 } 1039 } 1040 return false; 1041 } 1042 1043 bool Program::DetectVaryingsMismatch(std::string* conflicting_name) const { 1044 DCHECK(attached_shaders_[0].get() && 1045 attached_shaders_[0]->shader_type() == GL_VERTEX_SHADER && 1046 attached_shaders_[1].get() && 1047 attached_shaders_[1]->shader_type() == GL_FRAGMENT_SHADER); 1048 const ShaderTranslator::VariableMap* vertex_varyings = 1049 &(attached_shaders_[0]->varying_map()); 1050 const ShaderTranslator::VariableMap* fragment_varyings = 1051 &(attached_shaders_[1]->varying_map()); 1052 1053 for (ShaderTranslator::VariableMap::const_iterator iter = 1054 fragment_varyings->begin(); 1055 iter != fragment_varyings->end(); ++iter) { 1056 const std::string& name = iter->first; 1057 if (IsBuiltInVarying(name)) 1058 continue; 1059 1060 ShaderTranslator::VariableMap::const_iterator hit = 1061 vertex_varyings->find(name); 1062 if (hit == vertex_varyings->end()) { 1063 if (iter->second.static_use) { 1064 *conflicting_name = name; 1065 return true; 1066 } 1067 continue; 1068 } 1069 1070 if (hit->second.type != iter->second.type || 1071 hit->second.size != iter->second.size) { 1072 *conflicting_name = name; 1073 return true; 1074 } 1075 1076 } 1077 return false; 1078 } 1079 1080 bool Program::DetectGlobalNameConflicts(std::string* conflicting_name) const { 1081 DCHECK(attached_shaders_[0].get() && 1082 attached_shaders_[0]->shader_type() == GL_VERTEX_SHADER && 1083 attached_shaders_[1].get() && 1084 attached_shaders_[1]->shader_type() == GL_FRAGMENT_SHADER); 1085 const ShaderTranslator::VariableMap* uniforms[2]; 1086 uniforms[0] = &(attached_shaders_[0]->uniform_map()); 1087 uniforms[1] = &(attached_shaders_[1]->uniform_map()); 1088 const ShaderTranslator::VariableMap* attribs = 1089 &(attached_shaders_[0]->attrib_map()); 1090 1091 for (ShaderTranslator::VariableMap::const_iterator iter = 1092 attribs->begin(); iter != attribs->end(); ++iter) { 1093 for (int ii = 0; ii < 2; ++ii) { 1094 if (uniforms[ii]->find(iter->first) != uniforms[ii]->end()) { 1095 *conflicting_name = iter->first; 1096 return true; 1097 } 1098 } 1099 } 1100 return false; 1101 } 1102 1103 bool Program::CheckVaryingsPacking( 1104 Program::VaryingsPackingOption option) const { 1105 DCHECK(attached_shaders_[0].get() && 1106 attached_shaders_[0]->shader_type() == GL_VERTEX_SHADER && 1107 attached_shaders_[1].get() && 1108 attached_shaders_[1]->shader_type() == GL_FRAGMENT_SHADER); 1109 const ShaderTranslator::VariableMap* vertex_varyings = 1110 &(attached_shaders_[0]->varying_map()); 1111 const ShaderTranslator::VariableMap* fragment_varyings = 1112 &(attached_shaders_[1]->varying_map()); 1113 1114 std::map<std::string, ShVariableInfo> combined_map; 1115 1116 for (ShaderTranslator::VariableMap::const_iterator iter = 1117 fragment_varyings->begin(); 1118 iter != fragment_varyings->end(); ++iter) { 1119 if (!iter->second.static_use && option == kCountOnlyStaticallyUsed) 1120 continue; 1121 if (!IsBuiltInVarying(iter->first)) { 1122 ShaderTranslator::VariableMap::const_iterator vertex_iter = 1123 vertex_varyings->find(iter->first); 1124 if (vertex_iter == vertex_varyings->end() || 1125 (!vertex_iter->second.static_use && 1126 option == kCountOnlyStaticallyUsed)) 1127 continue; 1128 } 1129 1130 ShVariableInfo var; 1131 var.type = static_cast<sh::GLenum>(iter->second.type); 1132 var.size = iter->second.size; 1133 combined_map[iter->first] = var; 1134 } 1135 1136 if (combined_map.size() == 0) 1137 return true; 1138 scoped_ptr<ShVariableInfo[]> variables( 1139 new ShVariableInfo[combined_map.size()]); 1140 size_t index = 0; 1141 for (std::map<std::string, ShVariableInfo>::const_iterator iter = 1142 combined_map.begin(); 1143 iter != combined_map.end(); ++iter) { 1144 variables[index].type = iter->second.type; 1145 variables[index].size = iter->second.size; 1146 ++index; 1147 } 1148 return ShCheckVariablesWithinPackingLimits( 1149 static_cast<int>(manager_->max_varying_vectors()), 1150 variables.get(), 1151 combined_map.size()) == 1; 1152 } 1153 1154 static uint32 ComputeOffset(const void* start, const void* position) { 1155 return static_cast<const uint8*>(position) - 1156 static_cast<const uint8*>(start); 1157 } 1158 1159 void Program::GetProgramInfo( 1160 ProgramManager* manager, CommonDecoder::Bucket* bucket) const { 1161 // NOTE: It seems to me the math in here does not need check for overflow 1162 // because the data being calucated from has various small limits. The max 1163 // number of attribs + uniforms is somewhere well under 1024. The maximum size 1164 // of an identifier is 256 characters. 1165 uint32 num_locations = 0; 1166 uint32 total_string_size = 0; 1167 1168 for (size_t ii = 0; ii < attrib_infos_.size(); ++ii) { 1169 const VertexAttrib& info = attrib_infos_[ii]; 1170 num_locations += 1; 1171 total_string_size += info.name.size(); 1172 } 1173 1174 for (size_t ii = 0; ii < uniform_infos_.size(); ++ii) { 1175 const UniformInfo& info = uniform_infos_[ii]; 1176 if (info.IsValid()) { 1177 num_locations += info.element_locations.size(); 1178 total_string_size += info.name.size(); 1179 } 1180 } 1181 1182 uint32 num_inputs = attrib_infos_.size() + num_uniforms_; 1183 uint32 input_size = num_inputs * sizeof(ProgramInput); 1184 uint32 location_size = num_locations * sizeof(int32); 1185 uint32 size = sizeof(ProgramInfoHeader) + 1186 input_size + location_size + total_string_size; 1187 1188 bucket->SetSize(size); 1189 ProgramInfoHeader* header = bucket->GetDataAs<ProgramInfoHeader*>(0, size); 1190 ProgramInput* inputs = bucket->GetDataAs<ProgramInput*>( 1191 sizeof(ProgramInfoHeader), input_size); 1192 int32* locations = bucket->GetDataAs<int32*>( 1193 sizeof(ProgramInfoHeader) + input_size, location_size); 1194 char* strings = bucket->GetDataAs<char*>( 1195 sizeof(ProgramInfoHeader) + input_size + location_size, 1196 total_string_size); 1197 DCHECK(header); 1198 DCHECK(inputs); 1199 DCHECK(locations); 1200 DCHECK(strings); 1201 1202 header->link_status = link_status_; 1203 header->num_attribs = attrib_infos_.size(); 1204 header->num_uniforms = num_uniforms_; 1205 1206 for (size_t ii = 0; ii < attrib_infos_.size(); ++ii) { 1207 const VertexAttrib& info = attrib_infos_[ii]; 1208 inputs->size = info.size; 1209 inputs->type = info.type; 1210 inputs->location_offset = ComputeOffset(header, locations); 1211 inputs->name_offset = ComputeOffset(header, strings); 1212 inputs->name_length = info.name.size(); 1213 *locations++ = info.location; 1214 memcpy(strings, info.name.c_str(), info.name.size()); 1215 strings += info.name.size(); 1216 ++inputs; 1217 } 1218 1219 for (size_t ii = 0; ii < uniform_infos_.size(); ++ii) { 1220 const UniformInfo& info = uniform_infos_[ii]; 1221 if (info.IsValid()) { 1222 inputs->size = info.size; 1223 inputs->type = info.type; 1224 inputs->location_offset = ComputeOffset(header, locations); 1225 inputs->name_offset = ComputeOffset(header, strings); 1226 inputs->name_length = info.name.size(); 1227 DCHECK(static_cast<size_t>(info.size) == info.element_locations.size()); 1228 for (size_t jj = 0; jj < info.element_locations.size(); ++jj) { 1229 if (info.element_locations[jj] == -1) 1230 *locations++ = -1; 1231 else 1232 *locations++ = ProgramManager::MakeFakeLocation(ii, jj); 1233 } 1234 memcpy(strings, info.name.c_str(), info.name.size()); 1235 strings += info.name.size(); 1236 ++inputs; 1237 } 1238 } 1239 1240 DCHECK_EQ(ComputeOffset(header, strings), size); 1241 } 1242 1243 Program::~Program() { 1244 if (manager_) { 1245 if (manager_->have_context_) { 1246 glDeleteProgram(service_id()); 1247 } 1248 manager_->StopTracking(this); 1249 manager_ = NULL; 1250 } 1251 } 1252 1253 1254 ProgramManager::ProgramManager(ProgramCache* program_cache, 1255 uint32 max_varying_vectors) 1256 : program_count_(0), 1257 have_context_(true), 1258 program_cache_(program_cache), 1259 max_varying_vectors_(max_varying_vectors) { } 1260 1261 ProgramManager::~ProgramManager() { 1262 DCHECK(programs_.empty()); 1263 } 1264 1265 void ProgramManager::Destroy(bool have_context) { 1266 have_context_ = have_context; 1267 programs_.clear(); 1268 } 1269 1270 void ProgramManager::StartTracking(Program* /* program */) { 1271 ++program_count_; 1272 } 1273 1274 void ProgramManager::StopTracking(Program* /* program */) { 1275 --program_count_; 1276 } 1277 1278 Program* ProgramManager::CreateProgram( 1279 GLuint client_id, GLuint service_id) { 1280 std::pair<ProgramMap::iterator, bool> result = 1281 programs_.insert( 1282 std::make_pair(client_id, 1283 scoped_refptr<Program>( 1284 new Program(this, service_id)))); 1285 DCHECK(result.second); 1286 return result.first->second.get(); 1287 } 1288 1289 Program* ProgramManager::GetProgram(GLuint client_id) { 1290 ProgramMap::iterator it = programs_.find(client_id); 1291 return it != programs_.end() ? it->second.get() : NULL; 1292 } 1293 1294 bool ProgramManager::GetClientId(GLuint service_id, GLuint* client_id) const { 1295 // This doesn't need to be fast. It's only used during slow queries. 1296 for (ProgramMap::const_iterator it = programs_.begin(); 1297 it != programs_.end(); ++it) { 1298 if (it->second->service_id() == service_id) { 1299 *client_id = it->first; 1300 return true; 1301 } 1302 } 1303 return false; 1304 } 1305 1306 ProgramCache* ProgramManager::program_cache() const { 1307 return program_cache_; 1308 } 1309 1310 bool ProgramManager::IsOwned(Program* program) { 1311 for (ProgramMap::iterator it = programs_.begin(); 1312 it != programs_.end(); ++it) { 1313 if (it->second.get() == program) { 1314 return true; 1315 } 1316 } 1317 return false; 1318 } 1319 1320 void ProgramManager::RemoveProgramInfoIfUnused( 1321 ShaderManager* shader_manager, Program* program) { 1322 DCHECK(shader_manager); 1323 DCHECK(program); 1324 DCHECK(IsOwned(program)); 1325 if (program->IsDeleted() && !program->InUse()) { 1326 program->DetachShaders(shader_manager); 1327 for (ProgramMap::iterator it = programs_.begin(); 1328 it != programs_.end(); ++it) { 1329 if (it->second.get() == program) { 1330 programs_.erase(it); 1331 return; 1332 } 1333 } 1334 NOTREACHED(); 1335 } 1336 } 1337 1338 void ProgramManager::MarkAsDeleted( 1339 ShaderManager* shader_manager, 1340 Program* program) { 1341 DCHECK(shader_manager); 1342 DCHECK(program); 1343 DCHECK(IsOwned(program)); 1344 program->MarkAsDeleted(); 1345 RemoveProgramInfoIfUnused(shader_manager, program); 1346 } 1347 1348 void ProgramManager::UseProgram(Program* program) { 1349 DCHECK(program); 1350 DCHECK(IsOwned(program)); 1351 program->IncUseCount(); 1352 } 1353 1354 void ProgramManager::UnuseProgram( 1355 ShaderManager* shader_manager, 1356 Program* program) { 1357 DCHECK(shader_manager); 1358 DCHECK(program); 1359 DCHECK(IsOwned(program)); 1360 program->DecUseCount(); 1361 RemoveProgramInfoIfUnused(shader_manager, program); 1362 } 1363 1364 void ProgramManager::ClearUniforms(Program* program) { 1365 DCHECK(program); 1366 program->ClearUniforms(&zero_); 1367 } 1368 1369 int32 ProgramManager::MakeFakeLocation(int32 index, int32 element) { 1370 return index + element * 0x10000; 1371 } 1372 1373 } // namespace gles2 1374 } // namespace gpu 1375
