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| 1 // Copyright 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 "cc/raster/pixel_buffer_tile_task_worker_pool.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 | |
| 9 #include "base/containers/stack_container.h" | |
| 10 #include "base/strings/stringprintf.h" | |
| 11 #include "base/trace_event/trace_event.h" | |
| 12 #include "base/trace_event/trace_event_argument.h" | |
| 13 #include "cc/debug/traced_value.h" | |
| 14 #include "cc/raster/raster_buffer.h" | |
| 15 #include "cc/resources/platform_color.h" | |
| 16 #include "cc/resources/resource.h" | |
| 17 #include "gpu/command_buffer/client/gles2_interface.h" | |
| 18 | |
| 19 namespace cc { | |
| 20 namespace { | |
| 21 | |
| 22 class RasterBufferImpl : public RasterBuffer { | |
| 23 public: | |
| 24 RasterBufferImpl(ResourceProvider* resource_provider, | |
| 25 const Resource* resource) | |
| 26 : resource_provider_(resource_provider), | |
| 27 resource_(resource), | |
| 28 memory_(NULL), | |
| 29 stride_(0) { | |
| 30 resource_provider_->AcquirePixelBuffer(resource_->id()); | |
| 31 memory_ = resource_provider_->MapPixelBuffer(resource_->id(), &stride_); | |
| 32 } | |
| 33 | |
| 34 ~RasterBufferImpl() override { | |
| 35 resource_provider_->ReleasePixelBuffer(resource_->id()); | |
| 36 } | |
| 37 | |
| 38 // Overridden from RasterBuffer: | |
| 39 void Playback(const RasterSource* raster_source, | |
| 40 const gfx::Rect& raster_full_rect, | |
| 41 const gfx::Rect& raster_dirty_rect, | |
| 42 uint64_t new_content_id, | |
| 43 float scale, | |
| 44 bool include_images) override { | |
| 45 if (!memory_) | |
| 46 return; | |
| 47 | |
| 48 // TileTaskWorkerPool::PlaybackToMemory only supports unsigned strides. | |
| 49 DCHECK_GE(stride_, 0); | |
| 50 TileTaskWorkerPool::PlaybackToMemory( | |
| 51 memory_, resource_->format(), resource_->size(), | |
| 52 static_cast<size_t>(stride_), raster_source, raster_full_rect, | |
| 53 raster_full_rect, scale, include_images); | |
| 54 } | |
| 55 | |
| 56 private: | |
| 57 ResourceProvider* resource_provider_; | |
| 58 const Resource* resource_; | |
| 59 uint8_t* memory_; | |
| 60 int stride_; | |
| 61 | |
| 62 DISALLOW_COPY_AND_ASSIGN(RasterBufferImpl); | |
| 63 }; | |
| 64 | |
| 65 const int kCheckForCompletedRasterTasksDelayMs = 6; | |
| 66 | |
| 67 const size_t kMaxScheduledRasterTasks = 48; | |
| 68 | |
| 69 typedef base::StackVector<RasterTask*, kMaxScheduledRasterTasks> | |
| 70 RasterTaskVector; | |
| 71 | |
| 72 TaskSetCollection NonEmptyTaskSetsFromTaskCounts(const size_t* task_counts) { | |
| 73 TaskSetCollection task_sets; | |
| 74 for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) { | |
| 75 if (task_counts[task_set]) | |
| 76 task_sets[task_set] = true; | |
| 77 } | |
| 78 return task_sets; | |
| 79 } | |
| 80 | |
| 81 void AddTaskSetsToTaskCounts(size_t* task_counts, | |
| 82 const TaskSetCollection& task_sets) { | |
| 83 for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) { | |
| 84 if (task_sets[task_set]) | |
| 85 task_counts[task_set]++; | |
| 86 } | |
| 87 } | |
| 88 | |
| 89 void RemoveTaskSetsFromTaskCounts(size_t* task_counts, | |
| 90 const TaskSetCollection& task_sets) { | |
| 91 for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) { | |
| 92 if (task_sets[task_set]) | |
| 93 task_counts[task_set]--; | |
| 94 } | |
| 95 } | |
| 96 | |
| 97 } // namespace | |
| 98 | |
| 99 PixelBufferTileTaskWorkerPool::RasterTaskState::RasterTaskState( | |
| 100 RasterTask* task, | |
| 101 const TaskSetCollection& task_sets) | |
| 102 : type(UNSCHEDULED), task(task), task_sets(task_sets) { | |
| 103 } | |
| 104 | |
| 105 // static | |
| 106 scoped_ptr<TileTaskWorkerPool> PixelBufferTileTaskWorkerPool::Create( | |
| 107 base::SequencedTaskRunner* task_runner, | |
| 108 TaskGraphRunner* task_graph_runner, | |
| 109 ContextProvider* context_provider, | |
| 110 ResourceProvider* resource_provider, | |
| 111 size_t max_transfer_buffer_usage_bytes) { | |
| 112 return make_scoped_ptr<TileTaskWorkerPool>(new PixelBufferTileTaskWorkerPool( | |
| 113 task_runner, task_graph_runner, context_provider, resource_provider, | |
| 114 max_transfer_buffer_usage_bytes)); | |
| 115 } | |
| 116 | |
| 117 PixelBufferTileTaskWorkerPool::PixelBufferTileTaskWorkerPool( | |
| 118 base::SequencedTaskRunner* task_runner, | |
| 119 TaskGraphRunner* task_graph_runner, | |
| 120 ContextProvider* context_provider, | |
| 121 ResourceProvider* resource_provider, | |
| 122 size_t max_transfer_buffer_usage_bytes) | |
| 123 : task_runner_(task_runner), | |
| 124 task_graph_runner_(task_graph_runner), | |
| 125 namespace_token_(task_graph_runner->GetNamespaceToken()), | |
| 126 context_provider_(context_provider), | |
| 127 resource_provider_(resource_provider), | |
| 128 shutdown_(false), | |
| 129 scheduled_raster_task_count_(0u), | |
| 130 bytes_pending_upload_(0u), | |
| 131 max_bytes_pending_upload_(max_transfer_buffer_usage_bytes), | |
| 132 has_performed_uploads_since_last_flush_(false), | |
| 133 check_for_completed_raster_task_notifier_( | |
| 134 task_runner, | |
| 135 base::Bind( | |
| 136 &PixelBufferTileTaskWorkerPool::CheckForCompletedRasterTasks, | |
| 137 base::Unretained(this)), | |
| 138 base::TimeDelta::FromMilliseconds( | |
| 139 kCheckForCompletedRasterTasksDelayMs)), | |
| 140 task_set_finished_weak_ptr_factory_(this) { | |
| 141 DCHECK(context_provider_); | |
| 142 std::fill(task_counts_, task_counts_ + kNumberOfTaskSets, 0); | |
| 143 } | |
| 144 | |
| 145 PixelBufferTileTaskWorkerPool::~PixelBufferTileTaskWorkerPool() { | |
| 146 DCHECK_EQ(0u, raster_task_states_.size()); | |
| 147 DCHECK_EQ(0u, raster_tasks_with_pending_upload_.size()); | |
| 148 DCHECK_EQ(0u, completed_raster_tasks_.size()); | |
| 149 DCHECK_EQ(0u, completed_image_decode_tasks_.size()); | |
| 150 DCHECK(NonEmptyTaskSetsFromTaskCounts(task_counts_).none()); | |
| 151 } | |
| 152 | |
| 153 TileTaskRunner* PixelBufferTileTaskWorkerPool::AsTileTaskRunner() { | |
| 154 return this; | |
| 155 } | |
| 156 | |
| 157 void PixelBufferTileTaskWorkerPool::SetClient(TileTaskRunnerClient* client) { | |
| 158 client_ = client; | |
| 159 } | |
| 160 | |
| 161 void PixelBufferTileTaskWorkerPool::Shutdown() { | |
| 162 TRACE_EVENT0("cc", "PixelBufferTileTaskWorkerPool::Shutdown"); | |
| 163 | |
| 164 shutdown_ = true; | |
| 165 | |
| 166 TaskGraph empty; | |
| 167 task_graph_runner_->ScheduleTasks(namespace_token_, &empty); | |
| 168 task_graph_runner_->WaitForTasksToFinishRunning(namespace_token_); | |
| 169 | |
| 170 CheckForCompletedRasterizerTasks(); | |
| 171 CheckForCompletedUploads(); | |
| 172 | |
| 173 check_for_completed_raster_task_notifier_.Shutdown(); | |
| 174 | |
| 175 for (RasterTaskState::Vector::iterator it = raster_task_states_.begin(); | |
| 176 it != raster_task_states_.end(); ++it) { | |
| 177 RasterTaskState& state = *it; | |
| 178 | |
| 179 // All unscheduled tasks need to be canceled. | |
| 180 if (state.type == RasterTaskState::UNSCHEDULED) { | |
| 181 completed_raster_tasks_.push_back(state.task); | |
| 182 state.type = RasterTaskState::COMPLETED; | |
| 183 } | |
| 184 } | |
| 185 DCHECK_EQ(completed_raster_tasks_.size(), raster_task_states_.size()); | |
| 186 } | |
| 187 | |
| 188 void PixelBufferTileTaskWorkerPool::ScheduleTasks(TileTaskQueue* queue) { | |
| 189 TRACE_EVENT0("cc", "PixelBufferTileTaskWorkerPool::ScheduleTasks"); | |
| 190 | |
| 191 if (should_notify_client_if_no_tasks_are_pending_.none()) | |
| 192 TRACE_EVENT_ASYNC_BEGIN0("cc", "ScheduledTasks", this); | |
| 193 | |
| 194 should_notify_client_if_no_tasks_are_pending_.set(); | |
| 195 std::fill(task_counts_, task_counts_ + kNumberOfTaskSets, 0); | |
| 196 | |
| 197 // Update raster task state and remove items from old queue. | |
| 198 for (TileTaskQueue::Item::Vector::const_iterator it = queue->items.begin(); | |
| 199 it != queue->items.end(); ++it) { | |
| 200 const TileTaskQueue::Item& item = *it; | |
| 201 RasterTask* task = item.task; | |
| 202 | |
| 203 // Remove any old items that are associated with this task. The result is | |
| 204 // that the old queue is left with all items not present in this queue, | |
| 205 // which we use below to determine what tasks need to be canceled. | |
| 206 TileTaskQueue::Item::Vector::iterator old_it = | |
| 207 std::find_if(raster_tasks_.items.begin(), raster_tasks_.items.end(), | |
| 208 TileTaskQueue::Item::TaskComparator(task)); | |
| 209 if (old_it != raster_tasks_.items.end()) { | |
| 210 std::swap(*old_it, raster_tasks_.items.back()); | |
| 211 raster_tasks_.items.pop_back(); | |
| 212 } | |
| 213 | |
| 214 RasterTaskState::Vector::iterator state_it = | |
| 215 std::find_if(raster_task_states_.begin(), raster_task_states_.end(), | |
| 216 RasterTaskState::TaskComparator(task)); | |
| 217 if (state_it != raster_task_states_.end()) { | |
| 218 RasterTaskState& state = *state_it; | |
| 219 | |
| 220 state.task_sets = item.task_sets; | |
| 221 // |raster_tasks_required_for_activation_count| accounts for all tasks | |
| 222 // that need to complete before we can send a "ready to activate" signal. | |
| 223 // Tasks that have already completed should not be part of this count. | |
| 224 if (state.type != RasterTaskState::COMPLETED) | |
| 225 AddTaskSetsToTaskCounts(task_counts_, item.task_sets); | |
| 226 | |
| 227 continue; | |
| 228 } | |
| 229 | |
| 230 DCHECK(!task->HasBeenScheduled()); | |
| 231 raster_task_states_.push_back(RasterTaskState(task, item.task_sets)); | |
| 232 AddTaskSetsToTaskCounts(task_counts_, item.task_sets); | |
| 233 } | |
| 234 | |
| 235 // Determine what tasks in old queue need to be canceled. | |
| 236 for (TileTaskQueue::Item::Vector::const_iterator it = | |
| 237 raster_tasks_.items.begin(); | |
| 238 it != raster_tasks_.items.end(); ++it) { | |
| 239 const TileTaskQueue::Item& item = *it; | |
| 240 RasterTask* task = item.task; | |
| 241 | |
| 242 RasterTaskState::Vector::iterator state_it = | |
| 243 std::find_if(raster_task_states_.begin(), raster_task_states_.end(), | |
| 244 RasterTaskState::TaskComparator(task)); | |
| 245 // We've already processed completion if we can't find a RasterTaskState for | |
| 246 // this task. | |
| 247 if (state_it == raster_task_states_.end()) | |
| 248 continue; | |
| 249 | |
| 250 RasterTaskState& state = *state_it; | |
| 251 | |
| 252 // Unscheduled task can be canceled. | |
| 253 if (state.type == RasterTaskState::UNSCHEDULED) { | |
| 254 DCHECK(!task->HasBeenScheduled()); | |
| 255 DCHECK(std::find(completed_raster_tasks_.begin(), | |
| 256 completed_raster_tasks_.end(), | |
| 257 task) == completed_raster_tasks_.end()); | |
| 258 completed_raster_tasks_.push_back(task); | |
| 259 state.type = RasterTaskState::COMPLETED; | |
| 260 } | |
| 261 | |
| 262 // No longer in any task set. | |
| 263 state.task_sets.reset(); | |
| 264 } | |
| 265 | |
| 266 raster_tasks_.Swap(queue); | |
| 267 | |
| 268 // Check for completed tasks when ScheduleTasks() is called as | |
| 269 // priorities might have changed and this maximizes the number | |
| 270 // of top priority tasks that are scheduled. | |
| 271 CheckForCompletedRasterizerTasks(); | |
| 272 CheckForCompletedUploads(); | |
| 273 FlushUploads(); | |
| 274 | |
| 275 // Schedule new tasks. | |
| 276 ScheduleMoreTasks(); | |
| 277 | |
| 278 // Reschedule check for completed raster tasks. | |
| 279 check_for_completed_raster_task_notifier_.Schedule(); | |
| 280 | |
| 281 TRACE_EVENT_ASYNC_STEP_INTO1("cc", "ScheduledTasks", this, StateName(), | |
| 282 "state", StateAsValue()); | |
| 283 } | |
| 284 | |
| 285 void PixelBufferTileTaskWorkerPool::CheckForCompletedTasks() { | |
| 286 TRACE_EVENT0("cc", "PixelBufferTileTaskWorkerPool::CheckForCompletedTasks"); | |
| 287 | |
| 288 CheckForCompletedRasterizerTasks(); | |
| 289 CheckForCompletedUploads(); | |
| 290 FlushUploads(); | |
| 291 | |
| 292 for (TileTask::Vector::const_iterator it = | |
| 293 completed_image_decode_tasks_.begin(); | |
| 294 it != completed_image_decode_tasks_.end(); ++it) { | |
| 295 TileTask* task = it->get(); | |
| 296 task->RunReplyOnOriginThread(); | |
| 297 } | |
| 298 completed_image_decode_tasks_.clear(); | |
| 299 | |
| 300 for (RasterTask::Vector::const_iterator it = completed_raster_tasks_.begin(); | |
| 301 it != completed_raster_tasks_.end(); ++it) { | |
| 302 RasterTask* task = it->get(); | |
| 303 RasterTaskState::Vector::iterator state_it = | |
| 304 std::find_if(raster_task_states_.begin(), raster_task_states_.end(), | |
| 305 RasterTaskState::TaskComparator(task)); | |
| 306 DCHECK(state_it != raster_task_states_.end()); | |
| 307 DCHECK_EQ(RasterTaskState::COMPLETED, state_it->type); | |
| 308 | |
| 309 std::swap(*state_it, raster_task_states_.back()); | |
| 310 raster_task_states_.pop_back(); | |
| 311 | |
| 312 task->RunReplyOnOriginThread(); | |
| 313 } | |
| 314 completed_raster_tasks_.clear(); | |
| 315 } | |
| 316 | |
| 317 ResourceFormat PixelBufferTileTaskWorkerPool::GetResourceFormat() const { | |
| 318 return resource_provider_->memory_efficient_texture_format(); | |
| 319 } | |
| 320 | |
| 321 bool PixelBufferTileTaskWorkerPool::GetResourceRequiresSwizzle() const { | |
| 322 return !PlatformColor::SameComponentOrder(GetResourceFormat()); | |
| 323 } | |
| 324 | |
| 325 scoped_ptr<RasterBuffer> PixelBufferTileTaskWorkerPool::AcquireBufferForRaster( | |
| 326 const Resource* resource, | |
| 327 uint64_t resource_content_id, | |
| 328 uint64_t previous_content_id) { | |
| 329 return make_scoped_ptr<RasterBuffer>( | |
| 330 new RasterBufferImpl(resource_provider_, resource)); | |
| 331 } | |
| 332 | |
| 333 void PixelBufferTileTaskWorkerPool::ReleaseBufferForRaster( | |
| 334 scoped_ptr<RasterBuffer> buffer) { | |
| 335 // Nothing to do here. RasterBufferImpl destructor cleans up after itself. | |
| 336 } | |
| 337 | |
| 338 void PixelBufferTileTaskWorkerPool::OnTaskSetFinished(TaskSet task_set) { | |
| 339 TRACE_EVENT2("cc", "PixelBufferTileTaskWorkerPool::OnTaskSetFinished", | |
| 340 "task_set", task_set, | |
| 341 "should_notify_client_if_no_tasks_are_pending", | |
| 342 should_notify_client_if_no_tasks_are_pending_[task_set]); | |
| 343 | |
| 344 // There's no need to call CheckForCompletedRasterTasks() if the client has | |
| 345 // already been notified. | |
| 346 if (!should_notify_client_if_no_tasks_are_pending_[task_set]) | |
| 347 return; | |
| 348 task_set_finished_tasks_pending_[task_set] = false; | |
| 349 | |
| 350 // This reduces latency between the time when all tasks required for | |
| 351 // activation have finished running and the time when the client is | |
| 352 // notified. | |
| 353 CheckForCompletedRasterTasks(); | |
| 354 } | |
| 355 | |
| 356 void PixelBufferTileTaskWorkerPool::FlushUploads() { | |
| 357 if (!has_performed_uploads_since_last_flush_) | |
| 358 return; | |
| 359 | |
| 360 context_provider_->ContextGL()->ShallowFlushCHROMIUM(); | |
| 361 has_performed_uploads_since_last_flush_ = false; | |
| 362 } | |
| 363 | |
| 364 void PixelBufferTileTaskWorkerPool::CheckForCompletedUploads() { | |
| 365 RasterTask::Vector tasks_with_completed_uploads; | |
| 366 | |
| 367 // First check if any have completed. | |
| 368 while (!raster_tasks_with_pending_upload_.empty()) { | |
| 369 RasterTask* task = raster_tasks_with_pending_upload_.front().get(); | |
| 370 DCHECK(std::find_if(raster_task_states_.begin(), raster_task_states_.end(), | |
| 371 RasterTaskState::TaskComparator(task)) != | |
| 372 raster_task_states_.end()); | |
| 373 DCHECK_EQ( | |
| 374 RasterTaskState::UPLOADING, | |
| 375 std::find_if(raster_task_states_.begin(), raster_task_states_.end(), | |
| 376 RasterTaskState::TaskComparator(task))->type); | |
| 377 | |
| 378 // Uploads complete in the order they are issued. | |
| 379 if (!resource_provider_->DidSetPixelsComplete(task->resource()->id())) | |
| 380 break; | |
| 381 | |
| 382 tasks_with_completed_uploads.push_back(task); | |
| 383 raster_tasks_with_pending_upload_.pop_front(); | |
| 384 } | |
| 385 | |
| 386 DCHECK(client_); | |
| 387 TaskSetCollection tasks_that_should_be_forced_to_complete = | |
| 388 client_->TasksThatShouldBeForcedToComplete(); | |
| 389 bool should_force_some_uploads_to_complete = | |
| 390 shutdown_ || tasks_that_should_be_forced_to_complete.any(); | |
| 391 | |
| 392 if (should_force_some_uploads_to_complete) { | |
| 393 RasterTask::Vector tasks_with_uploads_to_force; | |
| 394 RasterTaskDeque::iterator it = raster_tasks_with_pending_upload_.begin(); | |
| 395 while (it != raster_tasks_with_pending_upload_.end()) { | |
| 396 RasterTask* task = it->get(); | |
| 397 RasterTaskState::Vector::const_iterator state_it = | |
| 398 std::find_if(raster_task_states_.begin(), raster_task_states_.end(), | |
| 399 RasterTaskState::TaskComparator(task)); | |
| 400 DCHECK(state_it != raster_task_states_.end()); | |
| 401 const RasterTaskState& state = *state_it; | |
| 402 | |
| 403 // Force all uploads to complete for which the client requests to do so. | |
| 404 // During shutdown, force all pending uploads to complete. | |
| 405 if (shutdown_ || | |
| 406 (state.task_sets & tasks_that_should_be_forced_to_complete).any()) { | |
| 407 tasks_with_uploads_to_force.push_back(task); | |
| 408 tasks_with_completed_uploads.push_back(task); | |
| 409 it = raster_tasks_with_pending_upload_.erase(it); | |
| 410 continue; | |
| 411 } | |
| 412 | |
| 413 ++it; | |
| 414 } | |
| 415 | |
| 416 // Force uploads in reverse order. Since forcing can cause a wait on | |
| 417 // all previous uploads, we would rather wait only once downstream. | |
| 418 for (RasterTask::Vector::reverse_iterator it = | |
| 419 tasks_with_uploads_to_force.rbegin(); | |
| 420 it != tasks_with_uploads_to_force.rend(); ++it) { | |
| 421 RasterTask* task = it->get(); | |
| 422 | |
| 423 resource_provider_->ForceSetPixelsToComplete(task->resource()->id()); | |
| 424 has_performed_uploads_since_last_flush_ = true; | |
| 425 } | |
| 426 } | |
| 427 | |
| 428 // Release shared memory and move tasks with completed uploads | |
| 429 // to |completed_raster_tasks_|. | |
| 430 for (RasterTask::Vector::const_iterator it = | |
| 431 tasks_with_completed_uploads.begin(); | |
| 432 it != tasks_with_completed_uploads.end(); ++it) { | |
| 433 RasterTask* task = it->get(); | |
| 434 RasterTaskState::Vector::iterator state_it = | |
| 435 std::find_if(raster_task_states_.begin(), raster_task_states_.end(), | |
| 436 RasterTaskState::TaskComparator(task)); | |
| 437 DCHECK(state_it != raster_task_states_.end()); | |
| 438 RasterTaskState& state = *state_it; | |
| 439 | |
| 440 // We can use UncheckedSizeInBytes here, since these tasks come from tiles, | |
| 441 // the size of which is controlled by the compositor. | |
| 442 bytes_pending_upload_ -= ResourceUtil::UncheckedSizeInBytes<size_t>( | |
| 443 task->resource()->size(), task->resource()->format()); | |
| 444 | |
| 445 task->WillComplete(); | |
| 446 task->CompleteOnOriginThread(this); | |
| 447 task->DidComplete(); | |
| 448 | |
| 449 DCHECK(std::find(completed_raster_tasks_.begin(), | |
| 450 completed_raster_tasks_.end(), | |
| 451 task) == completed_raster_tasks_.end()); | |
| 452 completed_raster_tasks_.push_back(task); | |
| 453 state.type = RasterTaskState::COMPLETED; | |
| 454 // Triggers if the current task belongs to a set that should be empty. | |
| 455 DCHECK((state.task_sets & ~NonEmptyTaskSetsFromTaskCounts(task_counts_)) | |
| 456 .none()); | |
| 457 RemoveTaskSetsFromTaskCounts(task_counts_, state.task_sets); | |
| 458 } | |
| 459 } | |
| 460 | |
| 461 void PixelBufferTileTaskWorkerPool::CheckForCompletedRasterTasks() { | |
| 462 TRACE_EVENT0("cc", | |
| 463 "PixelBufferTileTaskWorkerPool::CheckForCompletedRasterTasks"); | |
| 464 | |
| 465 // Since this function can be called directly, cancel any pending checks. | |
| 466 check_for_completed_raster_task_notifier_.Cancel(); | |
| 467 | |
| 468 DCHECK(should_notify_client_if_no_tasks_are_pending_.any()); | |
| 469 | |
| 470 CheckForCompletedRasterizerTasks(); | |
| 471 CheckForCompletedUploads(); | |
| 472 FlushUploads(); | |
| 473 | |
| 474 // Determine what client notifications to generate. | |
| 475 TaskSetCollection will_notify_client_that_no_tasks_are_pending = | |
| 476 should_notify_client_if_no_tasks_are_pending_ & | |
| 477 ~task_set_finished_tasks_pending_ & ~PendingTasks(); | |
| 478 | |
| 479 // Adjust the need to generate notifications before scheduling more tasks. | |
| 480 should_notify_client_if_no_tasks_are_pending_ &= | |
| 481 ~will_notify_client_that_no_tasks_are_pending; | |
| 482 | |
| 483 scheduled_raster_task_count_ = 0; | |
| 484 if (PendingRasterTaskCount()) | |
| 485 ScheduleMoreTasks(); | |
| 486 | |
| 487 TRACE_EVENT_ASYNC_STEP_INTO1("cc", "ScheduledTasks", this, StateName(), | |
| 488 "state", StateAsValue()); | |
| 489 | |
| 490 // Schedule another check for completed raster tasks while there are | |
| 491 // pending raster tasks or pending uploads. | |
| 492 if (PendingTasks().any()) | |
| 493 check_for_completed_raster_task_notifier_.Schedule(); | |
| 494 | |
| 495 if (should_notify_client_if_no_tasks_are_pending_.none()) | |
| 496 TRACE_EVENT_ASYNC_END0("cc", "ScheduledTasks", this); | |
| 497 | |
| 498 // Generate client notifications. | |
| 499 for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) { | |
| 500 if (will_notify_client_that_no_tasks_are_pending[task_set]) { | |
| 501 DCHECK(!PendingTasks()[task_set]); | |
| 502 client_->DidFinishRunningTileTasks(task_set); | |
| 503 } | |
| 504 } | |
| 505 } | |
| 506 | |
| 507 void PixelBufferTileTaskWorkerPool::ScheduleMoreTasks() { | |
| 508 TRACE_EVENT0("cc", "PixelBufferTileTaskWorkerPool::ScheduleMoreTasks"); | |
| 509 | |
| 510 RasterTaskVector tasks[kNumberOfTaskSets]; | |
| 511 | |
| 512 size_t priority = kTileTaskPriorityBase; | |
| 513 | |
| 514 graph_.Reset(); | |
| 515 | |
| 516 size_t bytes_pending_upload = bytes_pending_upload_; | |
| 517 TaskSetCollection did_throttle_raster_tasks; | |
| 518 size_t scheduled_raster_task_count = 0; | |
| 519 | |
| 520 for (TileTaskQueue::Item::Vector::const_iterator it = | |
| 521 raster_tasks_.items.begin(); | |
| 522 it != raster_tasks_.items.end(); ++it) { | |
| 523 const TileTaskQueue::Item& item = *it; | |
| 524 RasterTask* task = item.task; | |
| 525 DCHECK(item.task_sets.any()); | |
| 526 | |
| 527 // |raster_task_states_| contains the state of all tasks that we have not | |
| 528 // yet run reply callbacks for. | |
| 529 RasterTaskState::Vector::iterator state_it = | |
| 530 std::find_if(raster_task_states_.begin(), raster_task_states_.end(), | |
| 531 RasterTaskState::TaskComparator(task)); | |
| 532 if (state_it == raster_task_states_.end()) | |
| 533 continue; | |
| 534 | |
| 535 RasterTaskState& state = *state_it; | |
| 536 | |
| 537 // Skip task if completed. | |
| 538 if (state.type == RasterTaskState::COMPLETED) { | |
| 539 DCHECK(std::find(completed_raster_tasks_.begin(), | |
| 540 completed_raster_tasks_.end(), | |
| 541 task) != completed_raster_tasks_.end()); | |
| 542 continue; | |
| 543 } | |
| 544 | |
| 545 // All raster tasks need to be throttled by bytes of pending uploads, | |
| 546 // but if it's the only task allow it to complete no matter what its size, | |
| 547 // to prevent starvation of the task queue. | |
| 548 size_t new_bytes_pending_upload = bytes_pending_upload; | |
| 549 // We can use UncheckedSizeInBytes here, since these tasks come from tiles, | |
| 550 // the size of which is controlled by the compositor. | |
| 551 new_bytes_pending_upload += ResourceUtil::UncheckedSizeInBytes<size_t>( | |
| 552 task->resource()->size(), task->resource()->format()); | |
| 553 if (new_bytes_pending_upload > max_bytes_pending_upload_ && | |
| 554 bytes_pending_upload) { | |
| 555 did_throttle_raster_tasks |= item.task_sets; | |
| 556 continue; | |
| 557 } | |
| 558 | |
| 559 // If raster has finished, just update |bytes_pending_upload|. | |
| 560 if (state.type == RasterTaskState::UPLOADING) { | |
| 561 DCHECK(!task->HasCompleted()); | |
| 562 bytes_pending_upload = new_bytes_pending_upload; | |
| 563 continue; | |
| 564 } | |
| 565 | |
| 566 // Throttle raster tasks based on kMaxScheduledRasterTasks. | |
| 567 if (scheduled_raster_task_count >= kMaxScheduledRasterTasks) { | |
| 568 did_throttle_raster_tasks |= item.task_sets; | |
| 569 continue; | |
| 570 } | |
| 571 | |
| 572 // Update |bytes_pending_upload| now that task has cleared all | |
| 573 // throttling limits. | |
| 574 bytes_pending_upload = new_bytes_pending_upload; | |
| 575 | |
| 576 DCHECK(state.type == RasterTaskState::UNSCHEDULED || | |
| 577 state.type == RasterTaskState::SCHEDULED); | |
| 578 state.type = RasterTaskState::SCHEDULED; | |
| 579 | |
| 580 InsertNodesForRasterTask(&graph_, task, task->dependencies(), priority++); | |
| 581 | |
| 582 ++scheduled_raster_task_count; | |
| 583 for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) { | |
| 584 if (item.task_sets[task_set]) | |
| 585 tasks[task_set].container().push_back(task); | |
| 586 } | |
| 587 } | |
| 588 | |
| 589 // Cancel existing OnTaskSetFinished callbacks. | |
| 590 task_set_finished_weak_ptr_factory_.InvalidateWeakPtrs(); | |
| 591 | |
| 592 scoped_refptr<TileTask> new_task_set_finished_tasks[kNumberOfTaskSets]; | |
| 593 size_t scheduled_task_counts[kNumberOfTaskSets] = {0}; | |
| 594 | |
| 595 for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) { | |
| 596 scheduled_task_counts[task_set] = tasks[task_set].container().size(); | |
| 597 DCHECK_LE(scheduled_task_counts[task_set], task_counts_[task_set]); | |
| 598 // Schedule OnTaskSetFinished call for task set only when notification is | |
| 599 // pending and throttling is not preventing all pending tasks in the set | |
| 600 // from being scheduled. | |
| 601 if (!did_throttle_raster_tasks[task_set] && | |
| 602 should_notify_client_if_no_tasks_are_pending_[task_set]) { | |
| 603 new_task_set_finished_tasks[task_set] = CreateTaskSetFinishedTask( | |
| 604 task_runner_.get(), | |
| 605 base::Bind(&PixelBufferTileTaskWorkerPool::OnTaskSetFinished, | |
| 606 task_set_finished_weak_ptr_factory_.GetWeakPtr(), | |
| 607 task_set)); | |
| 608 task_set_finished_tasks_pending_[task_set] = true; | |
| 609 InsertNodeForTask(&graph_, new_task_set_finished_tasks[task_set].get(), | |
| 610 kTaskSetFinishedTaskPriorityBase + task_set, | |
| 611 scheduled_task_counts[task_set]); | |
| 612 for (RasterTaskVector::ContainerType::const_iterator it = | |
| 613 tasks[task_set].container().begin(); | |
| 614 it != tasks[task_set].container().end(); ++it) { | |
| 615 graph_.edges.push_back( | |
| 616 TaskGraph::Edge(*it, new_task_set_finished_tasks[task_set].get())); | |
| 617 } | |
| 618 } | |
| 619 } | |
| 620 | |
| 621 DCHECK_LE(scheduled_raster_task_count, PendingRasterTaskCount()); | |
| 622 | |
| 623 ScheduleTasksOnOriginThread(this, &graph_); | |
| 624 task_graph_runner_->ScheduleTasks(namespace_token_, &graph_); | |
| 625 | |
| 626 scheduled_raster_task_count_ = scheduled_raster_task_count; | |
| 627 | |
| 628 std::copy(new_task_set_finished_tasks, | |
| 629 new_task_set_finished_tasks + kNumberOfTaskSets, | |
| 630 task_set_finished_tasks_); | |
| 631 } | |
| 632 | |
| 633 size_t PixelBufferTileTaskWorkerPool::PendingRasterTaskCount() const { | |
| 634 size_t num_completed_raster_tasks = | |
| 635 raster_tasks_with_pending_upload_.size() + completed_raster_tasks_.size(); | |
| 636 DCHECK_GE(raster_task_states_.size(), num_completed_raster_tasks); | |
| 637 return raster_task_states_.size() - num_completed_raster_tasks; | |
| 638 } | |
| 639 | |
| 640 TaskSetCollection PixelBufferTileTaskWorkerPool::PendingTasks() const { | |
| 641 return NonEmptyTaskSetsFromTaskCounts(task_counts_); | |
| 642 } | |
| 643 | |
| 644 const char* PixelBufferTileTaskWorkerPool::StateName() const { | |
| 645 if (scheduled_raster_task_count_) | |
| 646 return "rasterizing"; | |
| 647 if (PendingRasterTaskCount()) | |
| 648 return "throttled"; | |
| 649 if (!raster_tasks_with_pending_upload_.empty()) | |
| 650 return "waiting_for_uploads"; | |
| 651 | |
| 652 return "finishing"; | |
| 653 } | |
| 654 | |
| 655 void PixelBufferTileTaskWorkerPool::CheckForCompletedRasterizerTasks() { | |
| 656 TRACE_EVENT0( | |
| 657 "cc", "PixelBufferTileTaskWorkerPool::CheckForCompletedRasterizerTasks"); | |
| 658 | |
| 659 task_graph_runner_->CollectCompletedTasks(namespace_token_, | |
| 660 &completed_tasks_); | |
| 661 for (Task::Vector::const_iterator it = completed_tasks_.begin(); | |
| 662 it != completed_tasks_.end(); ++it) { | |
| 663 TileTask* task = static_cast<TileTask*>(it->get()); | |
| 664 | |
| 665 RasterTask* raster_task = task->AsRasterTask(); | |
| 666 if (!raster_task) { | |
| 667 task->WillComplete(); | |
| 668 task->CompleteOnOriginThread(this); | |
| 669 task->DidComplete(); | |
| 670 | |
| 671 completed_image_decode_tasks_.push_back(task); | |
| 672 continue; | |
| 673 } | |
| 674 | |
| 675 RasterTaskState::Vector::iterator state_it = | |
| 676 std::find_if(raster_task_states_.begin(), raster_task_states_.end(), | |
| 677 RasterTaskState::TaskComparator(raster_task)); | |
| 678 DCHECK(state_it != raster_task_states_.end()); | |
| 679 | |
| 680 RasterTaskState& state = *state_it; | |
| 681 DCHECK_EQ(RasterTaskState::SCHEDULED, state.type); | |
| 682 | |
| 683 resource_provider_->UnmapPixelBuffer(raster_task->resource()->id()); | |
| 684 | |
| 685 if (!raster_task->HasFinishedRunning()) { | |
| 686 // When priorites change, a raster task can be canceled as a result of | |
| 687 // no longer being of high enough priority to fit in our throttled | |
| 688 // raster task budget. The task has not yet completed in this case. | |
| 689 raster_task->WillComplete(); | |
| 690 raster_task->CompleteOnOriginThread(this); | |
| 691 raster_task->DidComplete(); | |
| 692 | |
| 693 TileTaskQueue::Item::Vector::const_iterator item_it = | |
| 694 std::find_if(raster_tasks_.items.begin(), raster_tasks_.items.end(), | |
| 695 TileTaskQueue::Item::TaskComparator(raster_task)); | |
| 696 if (item_it != raster_tasks_.items.end()) { | |
| 697 state.type = RasterTaskState::UNSCHEDULED; | |
| 698 continue; | |
| 699 } | |
| 700 | |
| 701 DCHECK(std::find(completed_raster_tasks_.begin(), | |
| 702 completed_raster_tasks_.end(), | |
| 703 raster_task) == completed_raster_tasks_.end()); | |
| 704 completed_raster_tasks_.push_back(raster_task); | |
| 705 state.type = RasterTaskState::COMPLETED; | |
| 706 // Triggers if the current task belongs to a set that should be empty. | |
| 707 DCHECK((state.task_sets & ~NonEmptyTaskSetsFromTaskCounts(task_counts_)) | |
| 708 .none()); | |
| 709 RemoveTaskSetsFromTaskCounts(task_counts_, state.task_sets); | |
| 710 continue; | |
| 711 } | |
| 712 | |
| 713 resource_provider_->BeginSetPixels(raster_task->resource()->id()); | |
| 714 has_performed_uploads_since_last_flush_ = true; | |
| 715 | |
| 716 // We can use UncheckedSizeInBytes here, since these tasks come from tiles, | |
| 717 // the size of which is controlled by the compositor. | |
| 718 bytes_pending_upload_ += ResourceUtil::UncheckedSizeInBytes<size_t>( | |
| 719 raster_task->resource()->size(), raster_task->resource()->format()); | |
| 720 raster_tasks_with_pending_upload_.push_back(raster_task); | |
| 721 state.type = RasterTaskState::UPLOADING; | |
| 722 } | |
| 723 completed_tasks_.clear(); | |
| 724 } | |
| 725 | |
| 726 scoped_refptr<base::trace_event::ConvertableToTraceFormat> | |
| 727 PixelBufferTileTaskWorkerPool::StateAsValue() const { | |
| 728 scoped_refptr<base::trace_event::TracedValue> state = | |
| 729 new base::trace_event::TracedValue(); | |
| 730 state->SetInteger("completed_count", | |
| 731 static_cast<int>(completed_raster_tasks_.size())); | |
| 732 state->BeginArray("pending_count"); | |
| 733 for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) | |
| 734 state->AppendInteger(static_cast<int>(task_counts_[task_set])); | |
| 735 state->EndArray(); | |
| 736 state->SetInteger("pending_upload_count", | |
| 737 static_cast<int>(raster_tasks_with_pending_upload_.size())); | |
| 738 state->BeginDictionary("throttle_state"); | |
| 739 ThrottleStateAsValueInto(state.get()); | |
| 740 state->EndDictionary(); | |
| 741 return state; | |
| 742 } | |
| 743 | |
| 744 void PixelBufferTileTaskWorkerPool::ThrottleStateAsValueInto( | |
| 745 base::trace_event::TracedValue* throttle_state) const { | |
| 746 throttle_state->SetInteger( | |
| 747 "bytes_available_for_upload", | |
| 748 static_cast<int>(max_bytes_pending_upload_ - bytes_pending_upload_)); | |
| 749 throttle_state->SetInteger("bytes_pending_upload", | |
| 750 static_cast<int>(bytes_pending_upload_)); | |
| 751 throttle_state->SetInteger("scheduled_raster_task_count", | |
| 752 static_cast<int>(scheduled_raster_task_count_)); | |
| 753 } | |
| 754 | |
| 755 } // namespace cc | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1186393004:
gpu: Remove async texture uploads. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master