Tile Compression

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 84 matching lines @@
     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,
+      int compression_threshold,
       RenderingStatsInstrumentation* rendering_stats_instrumentation,
       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);
@@ skipping 12 matching lines @@
       const;
   void BasicStateAsValueInto(base::debug::TracedValue* dict) const;
   const MemoryHistory::Entry& memory_stats_from_last_assign() const {
     return memory_stats_from_last_assign_;
   }
 
   void InitializeTilesWithResourcesForTesting(const std::vector<Tile*>& tiles) {
     for (size_t i = 0; i < tiles.size(); ++i) {
       ManagedTileState& mts = tiles[i]->managed_state();
 
-      mts.draw_info.resource_ =
-          resource_pool_->AcquireResource(tiles[i]->size());
+      mts.draw_info.resource_ = resource_pool_->AcquireResource(
+          tiles[i]->size(), FORMAT_USAGE_NATIVE);
     }
   }
 
   void ReleaseTileResourcesForTesting(const std::vector<Tile*>& tiles) {
     for (size_t i = 0; i < tiles.size(); ++i) {
       Tile* tile = tiles[i];
       FreeResourcesForTile(tile);
     }
   }
 
@@ skipping 20 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,
+              int compression_threshold,
               RenderingStatsInstrumentation* rendering_stats_instrumentation,
               size_t scheduled_raster_task_limit);
 
   void FreeResourcesForReleasedTiles();
   void CleanUpReleasedTiles();
 
   // Overriden from RefCountedManager<Tile>:
   friend class Tile;
   void Release(Tile* tile) override;
 
@@ skipping 32 matching lines @@
   };
 
   void OnImageDecodeTaskCompleted(int layer_id,
                                   SkPixelRef* pixel_ref,
                                   bool was_canceled);
   void OnRasterTaskCompleted(Tile::Id tile,
                              scoped_ptr<ScopedResource> resource,
                              const RasterSource::SolidColorAnalysis& analysis,
                              bool was_canceled);
 
+  ResourceFormatUsage DetermineResourceFormatUsage(const Tile* tile) const;
   void FreeResourcesForTile(Tile* tile);
   void FreeResourcesForTileAndNotifyClientIfTileWasReadyToDraw(Tile* tile);
   scoped_refptr<ImageDecodeTask> CreateImageDecodeTask(Tile* tile,
                                                        SkPixelRef* pixel_ref);
   scoped_refptr<RasterTask> CreateRasterTask(Tile* tile);
 
   void RebuildEvictionQueueIfNeeded();
   bool FreeTileResourcesUntilUsageIsWithinLimit(const MemoryUsage& limit,
                                                 MemoryUsage* usage);
   bool FreeTileResourcesWithLowerPriorityUntilUsageIsWithinLimit(
@@ skipping 29 matching lines @@
   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_;
 
+  int compression_threshold_;
+
   ResourceFormat resource_format_;
 
   // Queue used when scheduling raster tasks.
   TileTaskQueue raster_queue_;
 
   std::vector<scoped_refptr<RasterTask>> orphan_raster_tasks_;
 
   UniqueNotifier ready_to_activate_check_notifier_;
   UniqueNotifier ready_to_draw_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_