cc: GPU rasterize tiles synchronously in PrepareToDraw.

cc/resources/tile_manager.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_RESOURCES_TILE_MANAGER_H_
 #define CC_RESOURCES_TILE_MANAGER_H_
 
 #include <deque>
 #include <queue>
 #include <set>
@@ skipping 16 matching lines @@
 
 namespace base {
 namespace debug {
 class ConvertableToTraceFormat;
 class TracedValue;
 }
 }
 
 namespace cc {
 class PictureLayerImpl;
+class Rasterizer;
 class ResourceProvider;
 
 class CC_EXPORT TileManagerClient {
  public:
   // Returns the set of layers that the tile manager should consider for raster.
   // TODO(vmpstr): Change the way we determine if we are ready to activate, so
   // that this can be removed.
   virtual const std::vector<PictureLayerImpl*>& GetPictureLayers() const = 0;
 
   // Called when all tiles marked as required for activation are ready to draw.
@@ skipping 42 matching lines @@
                               public RefCountedManager<Tile> {
  public:
   enum NamedTaskSet {
     ALL,
     REQUIRED_FOR_ACTIVATION,
     REQUIRED_FOR_DRAW
     // Adding additional values requires increasing kNumberOfTaskSets in
     // rasterizer.h
   };
 
-  static scoped_ptr<TileManager> Create(
-      TileManagerClient* client,
-      base::SequencedTaskRunner* task_runner,
-      ResourcePool* resource_pool,
-      TileTaskRunner* tile_task_runner,
-      size_t scheduled_raster_task_limit);
+  static scoped_ptr<TileManager> Create(TileManagerClient* client,
+                                        base::SequencedTaskRunner* task_runner,
+                                        ResourcePool* resource_pool,
+                                        TileTaskRunner* tile_task_runner,
+                                        Rasterizer* rasterizer,
+                                        size_t scheduled_raster_task_limit);
   ~TileManager() override;
 
   // Assigns tile memory and schedules work to prepare tiles for drawing.
   // - Runs client_->NotifyReadyToActivate() when all tiles required for
   // activation are prepared, or failed to prepare due to OOM.
   // - Runs client_->NotifyReadyToDraw() when all tiles required draw are
   // prepared, or failed to prepare due to OOM.
   void PrepareTiles(const GlobalStateThatImpactsTilePriority& state);
 
-  void UpdateVisibleTiles();
+  void UpdateVisibleTiles(const GlobalStateThatImpactsTilePriority& state);
 
   scoped_refptr<Tile> CreateTile(RasterSource* raster_source,
                                  const gfx::Size& tile_size,
                                  const gfx::Rect& content_rect,
                                  float contents_scale,
                                  int layer_id,
                                  int source_frame_number,
                                  int flags);
 
   scoped_refptr<base::debug::ConvertableToTraceFormat> BasicStateAsValue()
@@ skipping 40 matching lines @@
 
   void SetScheduledRasterTaskLimitForTesting(size_t limit) {
     scheduled_raster_task_limit_ = limit;
   }
 
  protected:
   TileManager(TileManagerClient* client,
               const scoped_refptr<base::SequencedTaskRunner>& task_runner,
               ResourcePool* resource_pool,
               TileTaskRunner* tile_task_runner,
+              Rasterizer* rasterizer,
               size_t scheduled_raster_task_limit);
 
   void FreeResourcesForReleasedTiles();
   void CleanUpReleasedTiles();
 
   // Overriden from RefCountedManager<Tile>:
   friend class Tile;
   void Release(Tile* tile) override;
 
   // Overriden from TileTaskRunnerClient:
   void DidFinishRunningTileTasks(TaskSet task_set) override;
   TaskSetCollection TasksThatShouldBeForcedToComplete() const override;
 
   typedef std::vector<Tile*> TileVector;
   typedef std::set<Tile*> TileSet;
 
   // Virtual for test
   virtual void ScheduleTasks(
       const TileVector& tiles_that_need_to_be_rasterized);
 
-  void AssignGpuMemoryToTiles(TileVector* tiles_that_need_to_be_rasterized);
+  void AssignGpuMemoryToTiles(TileVector* tiles_that_need_to_be_rasterized,
+                              size_t scheduled_raser_task_limit);
+
+  void SynchronouslyRasterizeTiles(
+      const GlobalStateThatImpactsTilePriority& state);
 
  private:
   class MemoryUsage {
    public:
     MemoryUsage();
     MemoryUsage(int64 memory_bytes, int resource_count);
 
     static MemoryUsage FromConfig(const gfx::Size& size, ResourceFormat format);
     static MemoryUsage FromTile(const Tile* tile);
 
@@ skipping 26 matching lines @@
   void RebuildEvictionQueueIfNeeded();
   bool FreeTileResourcesUntilUsageIsWithinLimit(const MemoryUsage& limit,
                                                 MemoryUsage* usage);
   bool FreeTileResourcesWithLowerPriorityUntilUsageIsWithinLimit(
       const MemoryUsage& limit,
       const TilePriority& oother_priority,
       MemoryUsage* usage);
   bool TilePriorityViolatesMemoryPolicy(const TilePriority& priority);
   bool IsReadyToActivate() const;
   bool IsReadyToDraw() const;
+  void NotifyReadyToActivate();
+  void NotifyReadyToDraw();
   void CheckIfReadyToActivate();
   void CheckIfReadyToDraw();
   void CheckIfMoreTilesNeedToBePrepared();
 
   TileManagerClient* client_;
   scoped_refptr<base::SequencedTaskRunner> task_runner_;
   ResourcePool* resource_pool_;
   TileTaskRunner* tile_task_runner_;
+  Rasterizer* rasterizer_;
   GlobalStateThatImpactsTilePriority global_state_;
   size_t scheduled_raster_task_limit_;
 
   typedef base::hash_map<Tile::Id, Tile*> TileMap;
   TileMap tiles_;
 
   bool all_tiles_that_need_to_be_rasterized_are_scheduled_;
   MemoryHistory::Entry memory_stats_from_last_assign_;
 
   bool did_check_for_completed_tasks_since_last_schedule_tasks_;
@@ skipping 11 matching lines @@
 
   std::vector<Tile*> released_tiles_;
 
   ResourceFormat resource_format_;
 
   // Queue used when scheduling raster tasks.
   TileTaskQueue raster_queue_;
 
   std::vector<scoped_refptr<RasterTask>> orphan_raster_tasks_;
 
+  UniqueNotifier ready_to_activate_notifier_;
+  UniqueNotifier ready_to_draw_notifier_;
   UniqueNotifier ready_to_activate_check_notifier_;
   UniqueNotifier ready_to_draw_check_notifier_;
   UniqueNotifier more_tiles_need_prepare_check_notifier_;
 
   RasterTilePriorityQueue raster_priority_queue_;
   EvictionTilePriorityQueue eviction_priority_queue_;
   bool eviction_priority_queue_is_up_to_date_;
 
   bool did_notify_ready_to_activate_;
   bool did_notify_ready_to_draw_;
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_TILE_MANAGER_H_