cc/raster/bitmap_tile_task_worker_pool.cc

   1 // Copyright 2014 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/bitmap_tile_task_worker_pool.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/strings/stringprintf.h"
  10 #include "base/trace_event/trace_event.h"
  11 #include "base/trace_event/trace_event_argument.h"
  12 #include "cc/debug/traced_value.h"
  13 #include "cc/playback/raster_source.h"
  14 #include "cc/raster/raster_buffer.h"
  15 #include "cc/resources/platform_color.h"
  16 #include "cc/resources/resource.h"
  17
  18 namespace cc {
  19 namespace {
  20
  21 class RasterBufferImpl : public RasterBuffer {
  22  public:
  23   RasterBufferImpl(ResourceProvider* resource_provider,
  24                    const Resource* resource,
  25                    uint64_t resource_content_id,
  26                    uint64_t previous_content_id)
  27       : lock_(resource_provider, resource->id()),
  28         resource_(resource),
  29         resource_has_previous_content_(
  30             resource_content_id && resource_content_id == previous_content_id) {
  31   }
  32
  33   // Overridden from RasterBuffer:
  34   void Playback(const RasterSource* raster_source,
  35                 const gfx::Rect& raster_full_rect,
  36                 const gfx::Rect& raster_dirty_rect,
  37                 uint64_t new_content_id,
  38                 float scale) override {
  39     gfx::Rect playback_rect = raster_full_rect;
  40     if (resource_has_previous_content_) {
  41       playback_rect.Intersect(raster_dirty_rect);
  42     }
  43     DCHECK(!playback_rect.IsEmpty())
  44         << "Why are we rastering a tile that's not dirty?";
  45
  46     size_t stride = 0u;
  47     TileTaskWorkerPool::PlaybackToMemory(
  48         lock_.sk_bitmap().getPixels(), resource_->format(), resource_->size(),
  49         stride, raster_source, raster_full_rect, playback_rect, scale);
  50   }
  51
  52  private:
  53   ResourceProvider::ScopedWriteLockSoftware lock_;
  54   const Resource* resource_;
  55   bool resource_has_previous_content_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(RasterBufferImpl);
  58 };
  59
  60 }  // namespace
  61
  62 // static
  63 scoped_ptr<TileTaskWorkerPool> BitmapTileTaskWorkerPool::Create(
  64     base::SequencedTaskRunner* task_runner,
  65     TaskGraphRunner* task_graph_runner,
  66     ResourceProvider* resource_provider) {
  67   return make_scoped_ptr<TileTaskWorkerPool>(new BitmapTileTaskWorkerPool(
  68       task_runner, task_graph_runner, resource_provider));
  69 }
  70
  71 BitmapTileTaskWorkerPool::BitmapTileTaskWorkerPool(
  72     base::SequencedTaskRunner* task_runner,
  73     TaskGraphRunner* task_graph_runner,
  74     ResourceProvider* resource_provider)
  75     : task_runner_(task_runner),
  76       task_graph_runner_(task_graph_runner),
  77       namespace_token_(task_graph_runner->GetNamespaceToken()),
  78       resource_provider_(resource_provider),
  79       task_set_finished_weak_ptr_factory_(this) {
  80 }
  81
  82 BitmapTileTaskWorkerPool::~BitmapTileTaskWorkerPool() {
  83 }
  84
  85 TileTaskRunner* BitmapTileTaskWorkerPool::AsTileTaskRunner() {
  86   return this;
  87 }
  88
  89 void BitmapTileTaskWorkerPool::SetClient(TileTaskRunnerClient* client) {
  90   client_ = client;
  91 }
  92
  93 void BitmapTileTaskWorkerPool::Shutdown() {
  94   TRACE_EVENT0("cc", "BitmapTileTaskWorkerPool::Shutdown");
  95
  96   TaskGraph empty;
  97   task_graph_runner_->ScheduleTasks(namespace_token_, &empty);
  98   task_graph_runner_->WaitForTasksToFinishRunning(namespace_token_);
  99 }
 100
 101 void BitmapTileTaskWorkerPool::ScheduleTasks(TileTaskQueue* queue) {
 102   TRACE_EVENT0("cc", "BitmapTileTaskWorkerPool::ScheduleTasks");
 103
 104   if (tasks_pending_.none())
 105     TRACE_EVENT_ASYNC_BEGIN0("cc", "ScheduledTasks", this);
 106
 107   // Mark all task sets as pending.
 108   tasks_pending_.set();
 109
 110   size_t priority = kTileTaskPriorityBase;
 111
 112   graph_.Reset();
 113
 114   // Cancel existing OnTaskSetFinished callbacks.
 115   task_set_finished_weak_ptr_factory_.InvalidateWeakPtrs();
 116
 117   scoped_refptr<TileTask> new_task_set_finished_tasks[kNumberOfTaskSets];
 118
 119   size_t task_count[kNumberOfTaskSets] = {0};
 120
 121   for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) {
 122     new_task_set_finished_tasks[task_set] = CreateTaskSetFinishedTask(
 123         task_runner_.get(),
 124         base::Bind(&BitmapTileTaskWorkerPool::OnTaskSetFinished,
 125                    task_set_finished_weak_ptr_factory_.GetWeakPtr(), task_set));
 126   }
 127
 128   for (TileTaskQueue::Item::Vector::const_iterator it = queue->items.begin();
 129        it != queue->items.end(); ++it) {
 130     const TileTaskQueue::Item& item = *it;
 131     RasterTask* task = item.task;
 132     DCHECK(!task->HasCompleted());
 133
 134     for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) {
 135       if (!item.task_sets[task_set])
 136         continue;
 137
 138       ++task_count[task_set];
 139
 140       graph_.edges.push_back(
 141           TaskGraph::Edge(task, new_task_set_finished_tasks[task_set].get()));
 142     }
 143
 144     InsertNodesForRasterTask(&graph_, task, task->dependencies(), priority++);
 145   }
 146
 147   for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set) {
 148     InsertNodeForTask(&graph_, new_task_set_finished_tasks[task_set].get(),
 149                       kTaskSetFinishedTaskPriorityBase + task_set,
 150                       task_count[task_set]);
 151   }
 152
 153   ScheduleTasksOnOriginThread(this, &graph_);
 154   task_graph_runner_->ScheduleTasks(namespace_token_, &graph_);
 155
 156   std::copy(new_task_set_finished_tasks,
 157             new_task_set_finished_tasks + kNumberOfTaskSets,
 158             task_set_finished_tasks_);
 159
 160   TRACE_EVENT_ASYNC_STEP_INTO1("cc", "ScheduledTasks", this, "running", "state",
 161                                StateAsValue());
 162 }
 163
 164 void BitmapTileTaskWorkerPool::CheckForCompletedTasks() {
 165   TRACE_EVENT0("cc", "BitmapTileTaskWorkerPool::CheckForCompletedTasks");
 166
 167   task_graph_runner_->CollectCompletedTasks(namespace_token_,
 168                                             &completed_tasks_);
 169   for (Task::Vector::const_iterator it = completed_tasks_.begin();
 170        it != completed_tasks_.end(); ++it) {
 171     TileTask* task = static_cast<TileTask*>(it->get());
 172
 173     task->WillComplete();
 174     task->CompleteOnOriginThread(this);
 175     task->DidComplete();
 176
 177     task->RunReplyOnOriginThread();
 178   }
 179   completed_tasks_.clear();
 180 }
 181
 182 ResourceFormat BitmapTileTaskWorkerPool::GetResourceFormat() const {
 183   return resource_provider_->best_texture_format();
 184 }
 185
 186 bool BitmapTileTaskWorkerPool::GetResourceRequiresSwizzle() const {
 187   return !PlatformColor::SameComponentOrder(GetResourceFormat());
 188 }
 189
 190 scoped_ptr<RasterBuffer> BitmapTileTaskWorkerPool::AcquireBufferForRaster(
 191     const Resource* resource,
 192     uint64_t resource_content_id,
 193     uint64_t previous_content_id) {
 194   return scoped_ptr<RasterBuffer>(new RasterBufferImpl(
 195       resource_provider_, resource, resource_content_id, previous_content_id));
 196 }
 197
 198 void BitmapTileTaskWorkerPool::ReleaseBufferForRaster(
 199     scoped_ptr<RasterBuffer> buffer) {
 200   // Nothing to do here. RasterBufferImpl destructor cleans up after itself.
 201 }
 202
 203 void BitmapTileTaskWorkerPool::OnTaskSetFinished(TaskSet task_set) {
 204   TRACE_EVENT1("cc", "BitmapTileTaskWorkerPool::OnTaskSetFinished", "task_set",
 205                task_set);
 206
 207   DCHECK(tasks_pending_[task_set]);
 208   tasks_pending_[task_set] = false;
 209   if (tasks_pending_.any()) {
 210     TRACE_EVENT_ASYNC_STEP_INTO1("cc", "ScheduledTasks", this, "running",
 211                                  "state", StateAsValue());
 212   } else {
 213     TRACE_EVENT_ASYNC_END0("cc", "ScheduledTasks", this);
 214   }
 215   client_->DidFinishRunningTileTasks(task_set);
 216 }
 217
 218 scoped_refptr<base::trace_event::ConvertableToTraceFormat>
 219 BitmapTileTaskWorkerPool::StateAsValue() const {
 220   scoped_refptr<base::trace_event::TracedValue> state =
 221       new base::trace_event::TracedValue();
 222
 223   state->BeginArray("tasks_pending");
 224   for (TaskSet task_set = 0; task_set < kNumberOfTaskSets; ++task_set)
 225     state->AppendBoolean(tasks_pending_[task_set]);
 226   state->EndArray();
 227   return state;
 228 }
 229
 230 }  // namespace cc