cc/picture_layer.h

   1 // Copyright 2012 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 #ifndef CC_PICTURE_LAYER_H_
   6 #define CC_PICTURE_LAYER_H_
   7
   8 #include "cc/layer.h"
   9 #include "cc/picture_pile.h"
  10 #include "cc/occlusion_tracker.h"
  11
  12 namespace cc {
  13
  14 class ContentLayerClient;
  15 class ResourceUpdateQueue;
  16 struct RenderingStats;
  17
  18 class CC_EXPORT PictureLayer : public Layer {
  19 public:
  20   static scoped_refptr<PictureLayer> create(ContentLayerClient*);
  21
  22   void clearClient() { client_ = 0; }
  23
  24   // Implement Layer interface
  25   virtual bool drawsContent() const OVERRIDE;
  26   virtual scoped_ptr<LayerImpl> createLayerImpl() OVERRIDE;
  27   virtual void pushPropertiesTo(LayerImpl*) OVERRIDE;
  28   virtual void setNeedsDisplayRect(const gfx::RectF& layerRect) OVERRIDE;
  29   virtual void update(ResourceUpdateQueue&, const OcclusionTracker*,
  30                       RenderingStats&) OVERRIDE;
  31
  32 protected:
  33   explicit PictureLayer(ContentLayerClient*);
  34   virtual ~PictureLayer();
  35
  36 private:
  37   ContentLayerClient* client_;
  38   PicturePile pile_;
  39   // Invalidation to use the next time update is called.
  40   Region pending_invalidation_;
  41   // Invalidation from the last time update was called.
  42   Region pile_invalidation_;
  43 };
  44
  45 }  // namespace cc
  46
  47 #endif  // CC_PICTURE_LAYER_H_