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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "cc/resources/tile_manager.h" | 5 #include "cc/resources/tile_manager.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 #include <limits> | 8 #include <limits> |
9 #include <string> | 9 #include <string> |
10 | 10 |
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382 base::Bind(&TileManager::CheckIfReadyToActivate, | 382 base::Bind(&TileManager::CheckIfReadyToActivate, |
383 base::Unretained(this))) { | 383 base::Unretained(this))) { |
384 rasterizer_->SetClient(this); | 384 rasterizer_->SetClient(this); |
385 } | 385 } |
386 | 386 |
387 TileManager::~TileManager() { | 387 TileManager::~TileManager() { |
388 // Reset global state and manage. This should cause | 388 // Reset global state and manage. This should cause |
389 // our memory usage to drop to zero. | 389 // our memory usage to drop to zero. |
390 global_state_ = GlobalStateThatImpactsTilePriority(); | 390 global_state_ = GlobalStateThatImpactsTilePriority(); |
391 | 391 |
392 CleanUpReleasedTiles(); | |
393 DCHECK_EQ(0u, tiles_.size()); | |
394 | |
395 RasterTaskQueue empty; | 392 RasterTaskQueue empty; |
396 rasterizer_->ScheduleTasks(&empty); | 393 rasterizer_->ScheduleTasks(&empty); |
397 orphan_raster_tasks_.clear(); | 394 orphan_raster_tasks_.clear(); |
398 | 395 |
399 // This should finish all pending tasks and release any uninitialized | 396 // This should finish all pending tasks and release any uninitialized |
400 // resources. | 397 // resources. |
401 rasterizer_->Shutdown(); | 398 rasterizer_->Shutdown(); |
402 rasterizer_->CheckForCompletedTasks(); | 399 rasterizer_->CheckForCompletedTasks(); |
403 | 400 |
| 401 prioritized_tiles_.Clear(); |
| 402 |
| 403 FreeResourcesForReleasedTiles(); |
| 404 CleanUpReleasedTiles(); |
| 405 |
404 DCHECK_EQ(0u, bytes_releasable_); | 406 DCHECK_EQ(0u, bytes_releasable_); |
405 DCHECK_EQ(0u, resources_releasable_); | 407 DCHECK_EQ(0u, resources_releasable_); |
406 } | 408 } |
407 | 409 |
408 void TileManager::Release(Tile* tile) { | 410 void TileManager::Release(Tile* tile) { |
| 411 DCHECK(TilePriority() == tile->combined_priority()); |
| 412 |
409 prioritized_tiles_dirty_ = true; | 413 prioritized_tiles_dirty_ = true; |
410 released_tiles_.push_back(tile); | 414 released_tiles_.push_back(tile); |
411 } | 415 } |
412 | 416 |
413 void TileManager::DidChangeTilePriority(Tile* tile) { | 417 void TileManager::DidChangeTilePriority(Tile* tile) { |
414 prioritized_tiles_dirty_ = true; | 418 prioritized_tiles_dirty_ = true; |
415 } | 419 } |
416 | 420 |
417 bool TileManager::ShouldForceTasksRequiredForActivationToComplete() const { | 421 bool TileManager::ShouldForceTasksRequiredForActivationToComplete() const { |
418 return global_state_.tree_priority != SMOOTHNESS_TAKES_PRIORITY; | 422 return global_state_.tree_priority != SMOOTHNESS_TAKES_PRIORITY; |
419 } | 423 } |
420 | 424 |
421 void TileManager::CleanUpReleasedTiles() { | 425 void TileManager::FreeResourcesForReleasedTiles() { |
422 for (std::vector<Tile*>::iterator it = released_tiles_.begin(); | 426 for (std::vector<Tile*>::iterator it = released_tiles_.begin(); |
423 it != released_tiles_.end(); | 427 it != released_tiles_.end(); |
424 ++it) { | 428 ++it) { |
425 Tile* tile = *it; | 429 Tile* tile = *it; |
426 ManagedTileState& mts = tile->managed_state(); | 430 FreeResourcesForTile(tile); |
| 431 } |
| 432 } |
427 | 433 |
428 for (int mode = 0; mode < NUM_RASTER_MODES; ++mode) { | 434 void TileManager::CleanUpReleasedTiles() { |
429 FreeResourceForTile(tile, static_cast<RasterMode>(mode)); | 435 // Make sure |prioritized_tiles_| doesn't contain any of the tiles |
430 orphan_raster_tasks_.push_back(mts.tile_versions[mode].raster_task_); | 436 // we're about to delete. |
| 437 DCHECK(prioritized_tiles_.IsEmpty()); |
| 438 |
| 439 std::vector<Tile*>::iterator it = released_tiles_.begin(); |
| 440 while (it != released_tiles_.end()) { |
| 441 Tile* tile = *it; |
| 442 |
| 443 if (tile->HasRasterTask()) { |
| 444 ++it; |
| 445 continue; |
431 } | 446 } |
432 | 447 |
| 448 DCHECK(!tile->HasResources()); |
433 DCHECK(tiles_.find(tile->id()) != tiles_.end()); | 449 DCHECK(tiles_.find(tile->id()) != tiles_.end()); |
434 tiles_.erase(tile->id()); | 450 tiles_.erase(tile->id()); |
435 | 451 |
436 LayerCountMap::iterator layer_it = | 452 LayerCountMap::iterator layer_it = |
437 used_layer_counts_.find(tile->layer_id()); | 453 used_layer_counts_.find(tile->layer_id()); |
438 DCHECK_GT(layer_it->second, 0); | 454 DCHECK_GT(layer_it->second, 0); |
439 if (--layer_it->second == 0) { | 455 if (--layer_it->second == 0) { |
440 used_layer_counts_.erase(layer_it); | 456 used_layer_counts_.erase(layer_it); |
441 image_decode_tasks_.erase(tile->layer_id()); | 457 image_decode_tasks_.erase(tile->layer_id()); |
442 } | 458 } |
443 | 459 |
444 delete tile; | 460 delete tile; |
| 461 it = released_tiles_.erase(it); |
445 } | 462 } |
446 | |
447 released_tiles_.clear(); | |
448 } | 463 } |
449 | 464 |
450 void TileManager::UpdatePrioritizedTileSetIfNeeded() { | 465 void TileManager::UpdatePrioritizedTileSetIfNeeded() { |
451 if (!prioritized_tiles_dirty_) | 466 if (!prioritized_tiles_dirty_) |
452 return; | 467 return; |
453 | 468 |
| 469 prioritized_tiles_.Clear(); |
| 470 |
| 471 FreeResourcesForReleasedTiles(); |
454 CleanUpReleasedTiles(); | 472 CleanUpReleasedTiles(); |
455 | 473 |
456 prioritized_tiles_.Clear(); | |
457 GetTilesWithAssignedBins(&prioritized_tiles_); | 474 GetTilesWithAssignedBins(&prioritized_tiles_); |
458 prioritized_tiles_dirty_ = false; | 475 prioritized_tiles_dirty_ = false; |
459 } | 476 } |
460 | 477 |
461 void TileManager::DidFinishRunningTasks() { | 478 void TileManager::DidFinishRunningTasks() { |
462 TRACE_EVENT0("cc", "TileManager::DidFinishRunningTasks"); | 479 TRACE_EVENT0("cc", "TileManager::DidFinishRunningTasks"); |
463 | 480 |
464 bool memory_usage_above_limit = resource_pool_->total_memory_usage_bytes() > | 481 bool memory_usage_above_limit = resource_pool_->total_memory_usage_bytes() > |
465 global_state_.soft_memory_limit_in_bytes; | 482 global_state_.soft_memory_limit_in_bytes; |
466 | 483 |
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477 AssignGpuMemoryToTiles(&prioritized_tiles_, | 494 AssignGpuMemoryToTiles(&prioritized_tiles_, |
478 &tiles_that_need_to_be_rasterized); | 495 &tiles_that_need_to_be_rasterized); |
479 | 496 |
480 // |tiles_that_need_to_be_rasterized| will be empty when we reach a | 497 // |tiles_that_need_to_be_rasterized| will be empty when we reach a |
481 // steady memory state. Keep scheduling tasks until we reach this state. | 498 // steady memory state. Keep scheduling tasks until we reach this state. |
482 if (!tiles_that_need_to_be_rasterized.empty()) { | 499 if (!tiles_that_need_to_be_rasterized.empty()) { |
483 ScheduleTasks(tiles_that_need_to_be_rasterized); | 500 ScheduleTasks(tiles_that_need_to_be_rasterized); |
484 return; | 501 return; |
485 } | 502 } |
486 | 503 |
| 504 FreeResourcesForReleasedTiles(); |
| 505 |
487 resource_pool_->ReduceResourceUsage(); | 506 resource_pool_->ReduceResourceUsage(); |
488 | 507 |
489 // We don't reserve memory for required-for-activation tiles during | 508 // We don't reserve memory for required-for-activation tiles during |
490 // accelerated gestures, so we just postpone activation when we don't | 509 // accelerated gestures, so we just postpone activation when we don't |
491 // have these tiles, and activate after the accelerated gesture. | 510 // have these tiles, and activate after the accelerated gesture. |
492 bool allow_rasterize_on_demand = | 511 bool allow_rasterize_on_demand = |
493 global_state_.tree_priority != SMOOTHNESS_TAKES_PRIORITY; | 512 global_state_.tree_priority != SMOOTHNESS_TAKES_PRIORITY; |
494 | 513 |
495 // Use on-demand raster for any required-for-activation tiles that have not | 514 // Use on-demand raster for any required-for-activation tiles that have not |
496 // been been assigned memory after reaching a steady memory state. This | 515 // been been assigned memory after reaching a steady memory state. This |
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1064 if (task_it != pixel_ref_tasks.end()) | 1083 if (task_it != pixel_ref_tasks.end()) |
1065 pixel_ref_tasks.erase(task_it); | 1084 pixel_ref_tasks.erase(task_it); |
1066 } | 1085 } |
1067 | 1086 |
1068 void TileManager::OnRasterTaskCompleted( | 1087 void TileManager::OnRasterTaskCompleted( |
1069 Tile::Id tile_id, | 1088 Tile::Id tile_id, |
1070 scoped_ptr<ScopedResource> resource, | 1089 scoped_ptr<ScopedResource> resource, |
1071 RasterMode raster_mode, | 1090 RasterMode raster_mode, |
1072 const PicturePileImpl::Analysis& analysis, | 1091 const PicturePileImpl::Analysis& analysis, |
1073 bool was_canceled) { | 1092 bool was_canceled) { |
1074 TileMap::iterator it = tiles_.find(tile_id); | 1093 DCHECK(tiles_.find(tile_id) != tiles_.end()); |
1075 if (it == tiles_.end()) { | |
1076 ++update_visible_tiles_stats_.canceled_count; | |
1077 resource_pool_->ReleaseResource(resource.Pass()); | |
1078 return; | |
1079 } | |
1080 | 1094 |
1081 Tile* tile = it->second; | 1095 Tile* tile = tiles_[tile_id]; |
1082 ManagedTileState& mts = tile->managed_state(); | 1096 ManagedTileState& mts = tile->managed_state(); |
1083 ManagedTileState::TileVersion& tile_version = mts.tile_versions[raster_mode]; | 1097 ManagedTileState::TileVersion& tile_version = mts.tile_versions[raster_mode]; |
1084 DCHECK(tile_version.raster_task_); | 1098 DCHECK(tile_version.raster_task_); |
1085 orphan_raster_tasks_.push_back(tile_version.raster_task_); | 1099 orphan_raster_tasks_.push_back(tile_version.raster_task_); |
1086 tile_version.raster_task_ = NULL; | 1100 tile_version.raster_task_ = NULL; |
1087 | 1101 |
1088 if (was_canceled) { | 1102 if (was_canceled) { |
1089 ++update_visible_tiles_stats_.canceled_count; | 1103 ++update_visible_tiles_stats_.canceled_count; |
1090 resource_pool_->ReleaseResource(resource.Pass()); | 1104 resource_pool_->ReleaseResource(resource.Pass()); |
1091 return; | 1105 return; |
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1158 TRACE_EVENT0("cc", "TileManager::CheckIfReadyToActivate"); | 1172 TRACE_EVENT0("cc", "TileManager::CheckIfReadyToActivate"); |
1159 | 1173 |
1160 rasterizer_->CheckForCompletedTasks(); | 1174 rasterizer_->CheckForCompletedTasks(); |
1161 did_check_for_completed_tasks_since_last_schedule_tasks_ = true; | 1175 did_check_for_completed_tasks_since_last_schedule_tasks_ = true; |
1162 | 1176 |
1163 if (IsReadyToActivate()) | 1177 if (IsReadyToActivate()) |
1164 client_->NotifyReadyToActivate(); | 1178 client_->NotifyReadyToActivate(); |
1165 } | 1179 } |
1166 | 1180 |
1167 } // namespace cc | 1181 } // namespace cc |
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