cc: Added tile bundles

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 <queue>
 #include <set>
 #include <vector>
 
 #include "base/containers/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "cc/base/ref_counted_managed.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/resources/managed_tile_state.h"
 #include "cc/resources/memory_history.h"
 #include "cc/resources/picture_pile_impl.h"
 #include "cc/resources/prioritized_tile_set.h"
 #include "cc/resources/raster_worker_pool.h"
 #include "cc/resources/resource_pool.h"
 #include "cc/resources/tile.h"
+#include "cc/resources/tile_bundle.h"
 
 namespace cc {
 class ResourceProvider;
 
 class CC_EXPORT TileManagerClient {
  public:
   virtual void NotifyReadyToActivate() = 0;
 
  protected:
   virtual ~TileManagerClient() {}
 };
 
 struct RasterTaskCompletionStats {
   RasterTaskCompletionStats();
 
   size_t completed_count;
   size_t canceled_count;
 };
 scoped_ptr<base::Value> RasterTaskCompletionStatsAsValue(
     const RasterTaskCompletionStats& stats);
 
 // This class manages tiles, deciding which should get rasterized and which
 // should no longer have any memory assigned to them. Tile objects are "owned"
 // by layers; they automatically register with the manager when they are
 // created, and unregister from the manager when they are deleted.
 class CC_EXPORT TileManager : public RasterWorkerPoolClient,
-                              public RefCountedManager<Tile> {
+                              public RefCountedManager<Tile>,
+                              public RefCountedManager<TileBundle> {
  public:
   static scoped_ptr<TileManager> Create(
       TileManagerClient* client,
       ResourceProvider* resource_provider,
       size_t num_raster_threads,
       RenderingStatsInstrumentation* rendering_stats_instrumentation,
       bool use_map_image,
       size_t max_transfer_buffer_usage_bytes,
       size_t max_raster_usage_bytes,
       GLenum map_image_texture_target);
   virtual ~TileManager();
 
   void ManageTiles(const GlobalStateThatImpactsTilePriority& state);
 
   // Returns true when visible tiles have been initialized.
   bool UpdateVisibleTiles();
 
   scoped_refptr<Tile> CreateTile(PicturePileImpl* picture_pile,
                                  gfx::Size tile_size,
                                  gfx::Rect content_rect,
                                  gfx::Rect opaque_rect,
                                  float contents_scale,
                                  int layer_id,
                                  int source_frame_number,
                                  int flags);
 
+  scoped_refptr<TileBundle> CreateTileBundle(int offset_x,
+                                             int offset_y,
+                                             int width,
+                                             int height);
+
   scoped_ptr<base::Value> BasicStateAsValue() const;
   scoped_ptr<base::Value> AllTilesAsValue() const;
   void GetMemoryStats(size_t* memory_required_bytes,
                       size_t* memory_nice_to_have_bytes,
                       size_t* memory_allocated_bytes,
                       size_t* memory_used_bytes) const;
 
   const MemoryHistory::Entry& memory_stats_from_last_assign() const {
     return memory_stats_from_last_assign_;
   }
@@ skipping 30 matching lines @@
   }
 
  protected:
   TileManager(TileManagerClient* client,
               ResourceProvider* resource_provider,
               scoped_ptr<RasterWorkerPool> raster_worker_pool,
               size_t num_raster_threads,
               size_t max_raster_usage_bytes,
               RenderingStatsInstrumentation* rendering_stats_instrumentation);
 
-  // Methods called by Tile
+  // Methods called by Tile and TileBundle
+  friend class TileBundle;
   friend class Tile;
+
   void DidChangeTilePriority(Tile* tile);
+  void DidChangeTileBundlePriority(TileBundle* bundle);
 
   void CleanUpReleasedTiles();
 
-  // Overriden from RefCountedManager<Tile>:
+  // Overridden from RefCountedManager<Tile>:
   virtual void Release(Tile* tile) OVERRIDE;
 
-  // Overriden from RasterWorkerPoolClient:
+  // Overridden from RefCountedManager<TileBundle>:
+  virtual void Release(TileBundle* bundle) OVERRIDE;
+
+  // Overridden from RasterWorkerPoolClient:
   virtual bool ShouldForceTasksRequiredForActivationToComplete() const
       OVERRIDE;
   virtual void DidFinishRunningTasks() OVERRIDE;
   virtual void DidFinishRunningTasksRequiredForActivation() OVERRIDE;
 
   typedef std::vector<Tile*> TileVector;
   typedef std::set<Tile*> TileSet;
 
   // Virtual for test
   virtual void ScheduleTasks(
@@ skipping 32 matching lines @@
   void UpdatePrioritizedTileSetIfNeeded();
 
   TileManagerClient* client_;
   scoped_ptr<ResourcePool> resource_pool_;
   scoped_ptr<RasterWorkerPool> raster_worker_pool_;
   GlobalStateThatImpactsTilePriority global_state_;
 
   typedef base::hash_map<Tile::Id, Tile*> TileMap;
   TileMap tiles_;
 
+  typedef base::hash_map<TileBundle::Id, TileBundle*> TileBundleMap;
+  TileBundleMap bundles_;
+
   PrioritizedTileSet prioritized_tiles_;
   bool prioritized_tiles_dirty_;
 
   bool all_tiles_that_need_to_be_rasterized_have_memory_;
   bool all_tiles_required_for_activation_have_memory_;
 
   size_t memory_required_bytes_;
   size_t memory_nice_to_have_bytes_;
 
   size_t bytes_releasable_;
@@ skipping 11 matching lines @@
   typedef base::hash_map<uint32_t, RasterWorkerPool::Task> PixelRefTaskMap;
   typedef base::hash_map<int, PixelRefTaskMap> LayerPixelRefTaskMap;
   LayerPixelRefTaskMap image_decode_tasks_;
 
   typedef base::hash_map<int, int> LayerCountMap;
   LayerCountMap used_layer_counts_;
 
   RasterTaskCompletionStats update_visible_tiles_stats_;
 
   std::vector<Tile*> released_tiles_;
+  std::vector<TileBundle*> released_tile_bundles_;
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_TILE_MANAGER_H_