Added preliminary support for tile rasterization with Ganesh

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/gpu_rasterizer.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"
 
 namespace cc {
 class ResourceProvider;
@@ skipping 13 matching lines @@
   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 GpuRasterizerClient,
                               public RefCountedManager<Tile> {
  public:
   static scoped_ptr<TileManager> Create(
       TileManagerClient* client,
       ResourceProvider* resource_provider,
+      ContextProvider* context_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,
-                                 bool can_use_lcd_text);
+                                 bool can_use_lcd_text,
+                                 bool use_gpu_rasterizer);
 
   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 23 matching lines @@
     if (state != global_state_) {
       global_state_ = state;
       prioritized_tiles_dirty_ = true;
       resource_pool_->SetResourceUsageLimits(
           global_state_.memory_limit_in_bytes,
           global_state_.unused_memory_limit_in_bytes,
           global_state_.num_resources_limit);
     }
   }
 
+  // GpuRasterizerClient interface
+  virtual void OnGpuRasterTaskCompleted(
+      Tile* tile, scoped_ptr<ResourcePool::Resource> resource) OVERRIDE;
+
  protected:
   TileManager(TileManagerClient* client,
               ResourceProvider* resource_provider,
+              ContextProvider* context_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
   friend class Tile;
   void DidChangeTilePriority(Tile* tile);
 
   void CleanUpReleasedTiles();
@@ skipping 42 matching lines @@
   void FreeUnusedResourcesForTile(Tile* tile);
   RasterWorkerPool::Task CreateImageDecodeTask(
       Tile* tile, skia::LazyPixelRef* pixel_ref);
   RasterWorkerPool::RasterTask CreateRasterTask(Tile* tile);
   scoped_ptr<base::Value> GetMemoryRequirementsAsValue() const;
   void UpdatePrioritizedTileSetIfNeeded();
 
   TileManagerClient* client_;
   scoped_ptr<ResourcePool> resource_pool_;
   scoped_ptr<RasterWorkerPool> raster_worker_pool_;
+  scoped_ptr<GpuRasterizer> gpu_rasterizer_;
   GlobalStateThatImpactsTilePriority global_state_;
 
   typedef base::hash_map<Tile::Id, Tile*> TileMap;
   TileMap tiles_;
 
   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_;
@@ skipping 23 matching lines @@
   RasterTaskCompletionStats update_visible_tiles_stats_;
 
   std::vector<Tile*> released_tiles_;
 
   DISALLOW_COPY_AND_ASSIGN(TileManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_TILE_MANAGER_H_