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| 1 // Copyright (c) 2013 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 "content/browser/gpu/shader_disk_cache.h" | |
| 6 | |
| 7 #include "base/macros.h" | |
| 8 #include "base/memory/ptr_util.h" | |
| 9 #include "base/single_thread_task_runner.h" | |
| 10 #include "base/threading/thread_checker.h" | |
| 11 #include "gpu/command_buffer/common/constants.h" | |
| 12 #include "net/base/cache_type.h" | |
| 13 #include "net/base/io_buffer.h" | |
| 14 #include "net/base/net_errors.h" | |
| 15 | |
| 16 namespace content { | |
| 17 | |
| 18 namespace { | |
| 19 | |
| 20 static const base::FilePath::CharType kGpuCachePath[] = | |
| 21 FILE_PATH_LITERAL("GPUCache"); | |
| 22 | |
| 23 } // namespace | |
| 24 | |
| 25 // ShaderDiskCacheEntry handles the work of caching/updating the cached | |
| 26 // shaders. | |
| 27 class ShaderDiskCacheEntry : public base::ThreadChecker { | |
| 28 public: | |
| 29 ShaderDiskCacheEntry(ShaderDiskCache* cache, | |
| 30 const std::string& key, | |
| 31 const std::string& shader); | |
| 32 ~ShaderDiskCacheEntry(); | |
| 33 | |
| 34 void Cache(); | |
| 35 | |
| 36 private: | |
| 37 enum OpType { | |
| 38 OPEN_ENTRY, | |
| 39 WRITE_DATA, | |
| 40 CREATE_ENTRY, | |
| 41 }; | |
| 42 | |
| 43 void OnOpComplete(int rv); | |
| 44 | |
| 45 int OpenCallback(int rv); | |
| 46 int WriteCallback(int rv); | |
| 47 int IOComplete(int rv); | |
| 48 | |
| 49 ShaderDiskCache* cache_; | |
| 50 OpType op_type_; | |
| 51 std::string key_; | |
| 52 std::string shader_; | |
| 53 disk_cache::Entry* entry_; | |
| 54 base::WeakPtr<ShaderDiskCacheEntry> weak_ptr_; | |
| 55 base::WeakPtrFactory<ShaderDiskCacheEntry> weak_ptr_factory_; | |
| 56 | |
| 57 DISALLOW_COPY_AND_ASSIGN(ShaderDiskCacheEntry); | |
| 58 }; | |
| 59 | |
| 60 // ShaderDiskReadHelper is used to load all of the cached shaders from the | |
| 61 // disk cache and send to the memory cache. | |
| 62 class ShaderDiskReadHelper : public base::ThreadChecker { | |
| 63 public: | |
| 64 using ShaderLoadedCallback = ShaderDiskCache::ShaderLoadedCallback; | |
| 65 ShaderDiskReadHelper(ShaderDiskCache* cache, | |
| 66 const ShaderLoadedCallback& callback); | |
| 67 ~ShaderDiskReadHelper(); | |
| 68 | |
| 69 void LoadCache(); | |
| 70 | |
| 71 private: | |
| 72 enum OpType { | |
| 73 TERMINATE, | |
| 74 OPEN_NEXT, | |
| 75 OPEN_NEXT_COMPLETE, | |
| 76 READ_COMPLETE, | |
| 77 ITERATION_FINISHED | |
| 78 }; | |
| 79 | |
| 80 | |
| 81 void OnOpComplete(int rv); | |
| 82 | |
| 83 int OpenNextEntry(); | |
| 84 int OpenNextEntryComplete(int rv); | |
| 85 int ReadComplete(int rv); | |
| 86 int IterationComplete(int rv); | |
| 87 | |
| 88 ShaderDiskCache* cache_; | |
| 89 ShaderLoadedCallback shader_loaded_callback_; | |
| 90 OpType op_type_; | |
| 91 std::unique_ptr<disk_cache::Backend::Iterator> iter_; | |
| 92 scoped_refptr<net::IOBufferWithSize> buf_; | |
| 93 disk_cache::Entry* entry_; | |
| 94 base::WeakPtrFactory<ShaderDiskReadHelper> weak_ptr_factory_; | |
| 95 | |
| 96 DISALLOW_COPY_AND_ASSIGN(ShaderDiskReadHelper); | |
| 97 }; | |
| 98 | |
| 99 class ShaderClearHelper : public base::ThreadChecker { | |
| 100 public: | |
| 101 ShaderClearHelper(ShaderCacheFactory* factory, | |
| 102 scoped_refptr<ShaderDiskCache> cache, | |
| 103 const base::FilePath& path, | |
| 104 const base::Time& delete_begin, | |
| 105 const base::Time& delete_end, | |
| 106 const base::Closure& callback); | |
| 107 ~ShaderClearHelper(); | |
| 108 | |
| 109 void Clear(); | |
| 110 | |
| 111 private: | |
| 112 enum OpType { | |
| 113 TERMINATE, | |
| 114 VERIFY_CACHE_SETUP, | |
| 115 DELETE_CACHE | |
| 116 }; | |
| 117 | |
| 118 void DoClearShaderCache(int rv); | |
| 119 | |
| 120 ShaderCacheFactory* factory_; | |
| 121 scoped_refptr<ShaderDiskCache> cache_; | |
| 122 OpType op_type_; | |
| 123 base::FilePath path_; | |
| 124 base::Time delete_begin_; | |
| 125 base::Time delete_end_; | |
| 126 base::Closure callback_; | |
| 127 base::WeakPtrFactory<ShaderClearHelper> weak_ptr_factory_; | |
| 128 | |
| 129 DISALLOW_COPY_AND_ASSIGN(ShaderClearHelper); | |
| 130 }; | |
| 131 | |
| 132 //////////////////////////////////////////////////////////////////////////////// | |
| 133 // ShaderDiskCacheEntry | |
| 134 | |
| 135 ShaderDiskCacheEntry::ShaderDiskCacheEntry(ShaderDiskCache* cache, | |
| 136 const std::string& key, | |
| 137 const std::string& shader) | |
| 138 : cache_(cache), | |
| 139 op_type_(OPEN_ENTRY), | |
| 140 key_(key), | |
| 141 shader_(shader), | |
| 142 entry_(nullptr), | |
| 143 weak_ptr_factory_(this) { | |
| 144 weak_ptr_ = weak_ptr_factory_.GetWeakPtr(); | |
| 145 } | |
| 146 | |
| 147 ShaderDiskCacheEntry::~ShaderDiskCacheEntry() { | |
| 148 DCHECK(CalledOnValidThread()); | |
| 149 if (entry_) | |
| 150 entry_->Close(); | |
| 151 } | |
| 152 | |
| 153 void ShaderDiskCacheEntry::Cache() { | |
| 154 DCHECK(CalledOnValidThread()); | |
| 155 int rv = cache_->backend()->OpenEntry( | |
| 156 key_, &entry_, base::Bind(&ShaderDiskCacheEntry::OnOpComplete, | |
| 157 weak_ptr_factory_.GetWeakPtr())); | |
| 158 if (rv != net::ERR_IO_PENDING) | |
| 159 OnOpComplete(rv); | |
| 160 } | |
| 161 | |
| 162 void ShaderDiskCacheEntry::OnOpComplete(int rv) { | |
| 163 DCHECK(CalledOnValidThread()); | |
| 164 // The function calls inside the switch block below can end up destroying | |
| 165 // |this|. So hold on to a WeakPtr<>, and terminate the while loop if |this| | |
| 166 // has been destroyed. | |
| 167 auto weak_ptr = std::move(weak_ptr_); | |
| 168 do { | |
| 169 switch (op_type_) { | |
| 170 case OPEN_ENTRY: | |
| 171 rv = OpenCallback(rv); | |
| 172 break; | |
| 173 case CREATE_ENTRY: | |
| 174 rv = WriteCallback(rv); | |
| 175 break; | |
| 176 case WRITE_DATA: | |
| 177 rv = IOComplete(rv); | |
| 178 break; | |
| 179 } | |
| 180 } while (rv != net::ERR_IO_PENDING && weak_ptr); | |
| 181 if (weak_ptr) | |
| 182 weak_ptr_ = std::move(weak_ptr); | |
| 183 } | |
| 184 | |
| 185 int ShaderDiskCacheEntry::OpenCallback(int rv) { | |
| 186 DCHECK(CalledOnValidThread()); | |
| 187 if (rv == net::OK) { | |
| 188 cache_->backend()->OnExternalCacheHit(key_); | |
| 189 cache_->EntryComplete(this); | |
| 190 return rv; | |
| 191 } | |
| 192 | |
| 193 op_type_ = CREATE_ENTRY; | |
| 194 return cache_->backend()->CreateEntry( | |
| 195 key_, &entry_, base::Bind(&ShaderDiskCacheEntry::OnOpComplete, | |
| 196 weak_ptr_factory_.GetWeakPtr())); | |
| 197 } | |
| 198 | |
| 199 int ShaderDiskCacheEntry::WriteCallback(int rv) { | |
| 200 DCHECK(CalledOnValidThread()); | |
| 201 if (rv != net::OK) { | |
| 202 LOG(ERROR) << "Failed to create shader cache entry: " << rv; | |
| 203 cache_->EntryComplete(this); | |
| 204 return rv; | |
| 205 } | |
| 206 | |
| 207 op_type_ = WRITE_DATA; | |
| 208 scoped_refptr<net::StringIOBuffer> io_buf = new net::StringIOBuffer(shader_); | |
| 209 return entry_->WriteData(1, 0, io_buf.get(), shader_.length(), | |
| 210 base::Bind(&ShaderDiskCacheEntry::OnOpComplete, | |
| 211 weak_ptr_factory_.GetWeakPtr()), | |
| 212 false); | |
| 213 } | |
| 214 | |
| 215 int ShaderDiskCacheEntry::IOComplete(int rv) { | |
| 216 DCHECK(CalledOnValidThread()); | |
| 217 cache_->EntryComplete(this); | |
| 218 return rv; | |
| 219 } | |
| 220 | |
| 221 //////////////////////////////////////////////////////////////////////////////// | |
| 222 // ShaderDiskReadHelper | |
| 223 | |
| 224 ShaderDiskReadHelper::ShaderDiskReadHelper(ShaderDiskCache* cache, | |
| 225 const ShaderLoadedCallback& callback) | |
| 226 : cache_(cache), | |
| 227 shader_loaded_callback_(callback), | |
| 228 op_type_(OPEN_NEXT), | |
| 229 buf_(NULL), | |
| 230 entry_(NULL), | |
| 231 weak_ptr_factory_(this) {} | |
| 232 | |
| 233 ShaderDiskReadHelper::~ShaderDiskReadHelper() { | |
| 234 DCHECK(CalledOnValidThread()); | |
| 235 if (entry_) | |
| 236 entry_->Close(); | |
| 237 iter_ = nullptr; | |
| 238 } | |
| 239 | |
| 240 void ShaderDiskReadHelper::LoadCache() { | |
| 241 DCHECK(CalledOnValidThread()); | |
| 242 OnOpComplete(net::OK); | |
| 243 } | |
| 244 | |
| 245 void ShaderDiskReadHelper::OnOpComplete(int rv) { | |
| 246 DCHECK(CalledOnValidThread()); | |
| 247 do { | |
| 248 switch (op_type_) { | |
| 249 case OPEN_NEXT: | |
| 250 rv = OpenNextEntry(); | |
| 251 break; | |
| 252 case OPEN_NEXT_COMPLETE: | |
| 253 rv = OpenNextEntryComplete(rv); | |
| 254 break; | |
| 255 case READ_COMPLETE: | |
| 256 rv = ReadComplete(rv); | |
| 257 break; | |
| 258 case ITERATION_FINISHED: | |
| 259 rv = IterationComplete(rv); | |
| 260 break; | |
| 261 case TERMINATE: | |
| 262 cache_->ReadComplete(); | |
| 263 rv = net::ERR_IO_PENDING; // break the loop | |
| 264 break; | |
| 265 } | |
| 266 } while (rv != net::ERR_IO_PENDING); | |
| 267 } | |
| 268 | |
| 269 int ShaderDiskReadHelper::OpenNextEntry() { | |
| 270 DCHECK(CalledOnValidThread()); | |
| 271 op_type_ = OPEN_NEXT_COMPLETE; | |
| 272 if (!iter_) | |
| 273 iter_ = cache_->backend()->CreateIterator(); | |
| 274 return iter_->OpenNextEntry(&entry_, | |
| 275 base::Bind(&ShaderDiskReadHelper::OnOpComplete, | |
| 276 weak_ptr_factory_.GetWeakPtr())); | |
| 277 } | |
| 278 | |
| 279 int ShaderDiskReadHelper::OpenNextEntryComplete(int rv) { | |
| 280 DCHECK(CalledOnValidThread()); | |
| 281 if (rv == net::ERR_FAILED) { | |
| 282 iter_.reset(); | |
| 283 op_type_ = ITERATION_FINISHED; | |
| 284 return net::OK; | |
| 285 } | |
| 286 | |
| 287 if (rv < 0) | |
| 288 return rv; | |
| 289 | |
| 290 op_type_ = READ_COMPLETE; | |
| 291 buf_ = new net::IOBufferWithSize(entry_->GetDataSize(1)); | |
| 292 return entry_->ReadData(1, 0, buf_.get(), buf_->size(), | |
| 293 base::Bind(&ShaderDiskReadHelper::OnOpComplete, | |
| 294 weak_ptr_factory_.GetWeakPtr())); | |
| 295 } | |
| 296 | |
| 297 int ShaderDiskReadHelper::ReadComplete(int rv) { | |
| 298 DCHECK(CalledOnValidThread()); | |
| 299 if (rv && rv == buf_->size() && !shader_loaded_callback_.is_null()) { | |
| 300 shader_loaded_callback_.Run(entry_->GetKey(), | |
| 301 std::string(buf_->data(), buf_->size())); | |
| 302 } | |
| 303 | |
| 304 buf_ = NULL; | |
| 305 entry_->Close(); | |
| 306 entry_ = NULL; | |
| 307 | |
| 308 op_type_ = OPEN_NEXT; | |
| 309 return net::OK; | |
| 310 } | |
| 311 | |
| 312 int ShaderDiskReadHelper::IterationComplete(int rv) { | |
| 313 DCHECK(CalledOnValidThread()); | |
| 314 iter_.reset(); | |
| 315 op_type_ = TERMINATE; | |
| 316 return net::OK; | |
| 317 } | |
| 318 | |
| 319 //////////////////////////////////////////////////////////////////////////////// | |
| 320 // ShaderClearHelper | |
| 321 | |
| 322 ShaderClearHelper::ShaderClearHelper(ShaderCacheFactory* factory, | |
| 323 scoped_refptr<ShaderDiskCache> cache, | |
| 324 const base::FilePath& path, | |
| 325 const base::Time& delete_begin, | |
| 326 const base::Time& delete_end, | |
| 327 const base::Closure& callback) | |
| 328 : factory_(factory), | |
| 329 cache_(std::move(cache)), | |
| 330 op_type_(VERIFY_CACHE_SETUP), | |
| 331 path_(path), | |
| 332 delete_begin_(delete_begin), | |
| 333 delete_end_(delete_end), | |
| 334 callback_(callback), | |
| 335 weak_ptr_factory_(this) {} | |
| 336 | |
| 337 ShaderClearHelper::~ShaderClearHelper() { | |
| 338 DCHECK(CalledOnValidThread()); | |
| 339 } | |
| 340 | |
| 341 void ShaderClearHelper::Clear() { | |
| 342 DCHECK(CalledOnValidThread()); | |
| 343 DoClearShaderCache(net::OK); | |
| 344 } | |
| 345 | |
| 346 void ShaderClearHelper::DoClearShaderCache(int rv) { | |
| 347 DCHECK(CalledOnValidThread()); | |
| 348 while (rv != net::ERR_IO_PENDING) { | |
| 349 switch (op_type_) { | |
| 350 case VERIFY_CACHE_SETUP: | |
| 351 rv = cache_->SetAvailableCallback( | |
| 352 base::Bind(&ShaderClearHelper::DoClearShaderCache, | |
| 353 weak_ptr_factory_.GetWeakPtr())); | |
| 354 op_type_ = DELETE_CACHE; | |
| 355 break; | |
| 356 case DELETE_CACHE: | |
| 357 rv = cache_->Clear(delete_begin_, delete_end_, | |
| 358 base::Bind(&ShaderClearHelper::DoClearShaderCache, | |
| 359 weak_ptr_factory_.GetWeakPtr())); | |
| 360 op_type_ = TERMINATE; | |
| 361 break; | |
| 362 case TERMINATE: | |
| 363 callback_.Run(); | |
| 364 // Calling CacheCleared() destroys |this|. | |
| 365 factory_->CacheCleared(path_); | |
| 366 rv = net::ERR_IO_PENDING; // Break the loop. | |
| 367 break; | |
| 368 } | |
| 369 } | |
| 370 } | |
| 371 | |
| 372 //////////////////////////////////////////////////////////////////////////////// | |
| 373 // ShaderCacheFactory | |
| 374 | |
| 375 ShaderCacheFactory::ShaderCacheFactory( | |
| 376 scoped_refptr<base::SingleThreadTaskRunner> cache_task_runner) | |
| 377 : cache_task_runner_(std::move(cache_task_runner)) {} | |
| 378 | |
| 379 ShaderCacheFactory::~ShaderCacheFactory() { | |
| 380 } | |
| 381 | |
| 382 void ShaderCacheFactory::SetCacheInfo(int32_t client_id, | |
| 383 const base::FilePath& path) { | |
| 384 DCHECK(CalledOnValidThread()); | |
| 385 client_id_to_path_map_[client_id] = path; | |
| 386 } | |
| 387 | |
| 388 void ShaderCacheFactory::RemoveCacheInfo(int32_t client_id) { | |
| 389 DCHECK(CalledOnValidThread()); | |
| 390 client_id_to_path_map_.erase(client_id); | |
| 391 } | |
| 392 | |
| 393 scoped_refptr<ShaderDiskCache> ShaderCacheFactory::Get(int32_t client_id) { | |
| 394 DCHECK(CalledOnValidThread()); | |
| 395 ClientIdToPathMap::iterator iter = client_id_to_path_map_.find(client_id); | |
| 396 if (iter == client_id_to_path_map_.end()) | |
| 397 return NULL; | |
| 398 return ShaderCacheFactory::GetByPath(iter->second); | |
| 399 } | |
| 400 | |
| 401 scoped_refptr<ShaderDiskCache> ShaderCacheFactory::GetByPath( | |
| 402 const base::FilePath& path) { | |
| 403 DCHECK(CalledOnValidThread()); | |
| 404 ShaderCacheMap::iterator iter = shader_cache_map_.find(path); | |
| 405 if (iter != shader_cache_map_.end()) | |
| 406 return iter->second; | |
| 407 | |
| 408 ShaderDiskCache* cache = new ShaderDiskCache(this, path); | |
| 409 cache->Init(cache_task_runner_); | |
| 410 return cache; | |
| 411 } | |
| 412 | |
| 413 void ShaderCacheFactory::AddToCache(const base::FilePath& key, | |
| 414 ShaderDiskCache* cache) { | |
| 415 DCHECK(CalledOnValidThread()); | |
| 416 shader_cache_map_[key] = cache; | |
| 417 } | |
| 418 | |
| 419 void ShaderCacheFactory::RemoveFromCache(const base::FilePath& key) { | |
| 420 DCHECK(CalledOnValidThread()); | |
| 421 shader_cache_map_.erase(key); | |
| 422 } | |
| 423 | |
| 424 void ShaderCacheFactory::ClearByPath(const base::FilePath& path, | |
| 425 const base::Time& delete_begin, | |
| 426 const base::Time& delete_end, | |
| 427 const base::Closure& callback) { | |
| 428 DCHECK(CalledOnValidThread()); | |
| 429 DCHECK(!callback.is_null()); | |
| 430 | |
| 431 auto helper = base::MakeUnique<ShaderClearHelper>( | |
| 432 this, GetByPath(path), path, delete_begin, delete_end, callback); | |
| 433 | |
| 434 // We could receive requests to clear the same path with different | |
| 435 // begin/end times. So, we keep a list of requests. If we haven't seen this | |
| 436 // path before we kick off the clear and add it to the list. If we have see it | |
| 437 // already, then we already have a clear running. We add this clear to the | |
| 438 // list and wait for any previous clears to finish. | |
| 439 ShaderClearMap::iterator iter = shader_clear_map_.find(path); | |
| 440 if (iter != shader_clear_map_.end()) { | |
| 441 iter->second.push(std::move(helper)); | |
| 442 return; | |
| 443 } | |
| 444 | |
| 445 // Insert the helper in the map before calling Clear(), since it can lead to a | |
| 446 // call back into CacheCleared(). | |
| 447 ShaderClearHelper* helper_ptr = helper.get(); | |
| 448 shader_clear_map_.insert( | |
| 449 std::pair<base::FilePath, ShaderClearQueue>(path, ShaderClearQueue())); | |
| 450 shader_clear_map_[path].push(std::move(helper)); | |
| 451 helper_ptr->Clear(); | |
| 452 } | |
| 453 | |
| 454 void ShaderCacheFactory::CacheCleared(const base::FilePath& path) { | |
| 455 DCHECK(CalledOnValidThread()); | |
| 456 | |
| 457 ShaderClearMap::iterator iter = shader_clear_map_.find(path); | |
| 458 if (iter == shader_clear_map_.end()) { | |
| 459 LOG(ERROR) << "Completed clear but missing clear helper."; | |
| 460 return; | |
| 461 } | |
| 462 | |
| 463 iter->second.pop(); | |
| 464 | |
| 465 // If there are remaining items in the list we trigger the Clear on the | |
| 466 // next one. | |
| 467 if (!iter->second.empty()) { | |
| 468 iter->second.front()->Clear(); | |
| 469 return; | |
| 470 } | |
| 471 | |
| 472 shader_clear_map_.erase(iter); | |
| 473 } | |
| 474 | |
| 475 //////////////////////////////////////////////////////////////////////////////// | |
| 476 // ShaderDiskCache | |
| 477 | |
| 478 ShaderDiskCache::ShaderDiskCache(ShaderCacheFactory* factory, | |
| 479 const base::FilePath& cache_path) | |
| 480 : factory_(factory), | |
| 481 cache_available_(false), | |
| 482 cache_path_(cache_path), | |
| 483 is_initialized_(false) { | |
| 484 factory_->AddToCache(cache_path_, this); | |
| 485 } | |
| 486 | |
| 487 ShaderDiskCache::~ShaderDiskCache() { | |
| 488 factory_->RemoveFromCache(cache_path_); | |
| 489 } | |
| 490 | |
| 491 void ShaderDiskCache::Init( | |
| 492 scoped_refptr<base::SingleThreadTaskRunner> cache_task_runner) { | |
| 493 if (is_initialized_) { | |
| 494 NOTREACHED(); // can't initialize disk cache twice. | |
| 495 return; | |
| 496 } | |
| 497 is_initialized_ = true; | |
| 498 | |
| 499 int rv = disk_cache::CreateCacheBackend( | |
| 500 net::SHADER_CACHE, net::CACHE_BACKEND_DEFAULT, | |
| 501 cache_path_.Append(kGpuCachePath), | |
| 502 gpu::kDefaultMaxProgramCacheMemoryBytes, true, cache_task_runner, NULL, | |
| 503 &backend_, base::Bind(&ShaderDiskCache::CacheCreatedCallback, this)); | |
| 504 | |
| 505 if (rv == net::OK) | |
| 506 cache_available_ = true; | |
| 507 } | |
| 508 | |
| 509 void ShaderDiskCache::Cache(const std::string& key, const std::string& shader) { | |
| 510 if (!cache_available_) | |
| 511 return; | |
| 512 | |
| 513 auto shim = base::MakeUnique<ShaderDiskCacheEntry>(this, key, shader); | |
| 514 shim->Cache(); | |
| 515 auto* raw_ptr = shim.get(); | |
| 516 entries_.insert(std::make_pair(raw_ptr, std::move(shim))); | |
| 517 } | |
| 518 | |
| 519 int ShaderDiskCache::Clear( | |
| 520 const base::Time begin_time, const base::Time end_time, | |
| 521 const net::CompletionCallback& completion_callback) { | |
| 522 int rv; | |
| 523 if (begin_time.is_null()) { | |
| 524 rv = backend_->DoomAllEntries(completion_callback); | |
| 525 } else { | |
| 526 rv = backend_->DoomEntriesBetween(begin_time, end_time, | |
| 527 completion_callback); | |
| 528 } | |
| 529 return rv; | |
| 530 } | |
| 531 | |
| 532 int32_t ShaderDiskCache::Size() { | |
| 533 if (!cache_available_) | |
| 534 return -1; | |
| 535 return backend_->GetEntryCount(); | |
| 536 } | |
| 537 | |
| 538 int ShaderDiskCache::SetAvailableCallback( | |
| 539 const net::CompletionCallback& callback) { | |
| 540 if (cache_available_) | |
| 541 return net::OK; | |
| 542 available_callback_ = callback; | |
| 543 return net::ERR_IO_PENDING; | |
| 544 } | |
| 545 | |
| 546 void ShaderDiskCache::CacheCreatedCallback(int rv) { | |
| 547 if (rv != net::OK) { | |
| 548 LOG(ERROR) << "Shader Cache Creation failed: " << rv; | |
| 549 return; | |
| 550 } | |
| 551 helper_ = | |
| 552 base::MakeUnique<ShaderDiskReadHelper>(this, shader_loaded_callback_); | |
| 553 helper_->LoadCache(); | |
| 554 } | |
| 555 | |
| 556 void ShaderDiskCache::EntryComplete(ShaderDiskCacheEntry* entry) { | |
| 557 entries_.erase(entry); | |
| 558 if (entries_.empty() && !cache_complete_callback_.is_null()) | |
| 559 cache_complete_callback_.Run(net::OK); | |
| 560 } | |
| 561 | |
| 562 void ShaderDiskCache::ReadComplete() { | |
| 563 helper_ = nullptr; | |
| 564 | |
| 565 // The cache is considered available after we have finished reading any | |
| 566 // of the old cache values off disk. This prevents a potential race where we | |
| 567 // are reading from disk and execute a cache clear at the same time. | |
| 568 cache_available_ = true; | |
| 569 if (!available_callback_.is_null()) { | |
| 570 available_callback_.Run(net::OK); | |
| 571 available_callback_.Reset(); | |
| 572 } | |
| 573 } | |
| 574 | |
| 575 int ShaderDiskCache::SetCacheCompleteCallback( | |
| 576 const net::CompletionCallback& callback) { | |
| 577 if (entries_.empty()) { | |
| 578 return net::OK; | |
| 579 } | |
| 580 cache_complete_callback_ = callback; | |
| 581 return net::ERR_IO_PENDING; | |
| 582 } | |
| 583 | |
| 584 } // namespace content | |
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Chromium Code Reviews
Issue 2555693005:
gpu: Move ShaderDiskCache into //gpu/ipc/host component. (Closed)
