cc/resources/image_layer_updater.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_RESOURCES_IMAGE_LAYER_UPDATER_H_
   6 #define CC_RESOURCES_IMAGE_LAYER_UPDATER_H_
   7
   8 #include "cc/base/cc_export.h"
   9 #include "cc/resources/layer_updater.h"
  10 #include "third_party/skia/include/core/SkBitmap.h"
  11
  12 namespace cc {
  13
  14 class ResourceUpdateQueue;
  15
  16 class CC_EXPORT ImageLayerUpdater : public LayerUpdater {
  17  public:
  18   class Resource : public LayerUpdater::Resource {
  19    public:
  20     Resource(ImageLayerUpdater* updater,
  21              scoped_ptr<PrioritizedResource> texture);
  22     virtual ~Resource();
  23
  24     virtual void Update(ResourceUpdateQueue* queue,
  25                         const gfx::Rect& source_rect,
  26                         const gfx::Vector2d& dest_offset,
  27                         bool partial_update) OVERRIDE;
  28
  29    private:
  30     ImageLayerUpdater* updater_;
  31
  32     DISALLOW_COPY_AND_ASSIGN(Resource);
  33   };
  34
  35   static scoped_refptr<ImageLayerUpdater> Create();
  36
  37   virtual scoped_ptr<LayerUpdater::Resource> CreateResource(
  38       PrioritizedResourceManager*) OVERRIDE;
  39
  40   void UpdateTexture(ResourceUpdateQueue* queue,
  41                      PrioritizedResource* texture,
  42                      const gfx::Rect& source_rect,
  43                      const gfx::Vector2d& dest_offset,
  44                      bool partial_update);
  45
  46   void SetBitmap(const SkBitmap& bitmap);
  47   bool UsingBitmap(const SkBitmap& bitmap) const;
  48
  49  private:
  50   ImageLayerUpdater() {}
  51   virtual ~ImageLayerUpdater() {}
  52
  53   SkBitmap bitmap_;
  54
  55   DISALLOW_COPY_AND_ASSIGN(ImageLayerUpdater);
  56 };
  57
  58 }  // namespace cc
  59
  60 #endif  // CC_RESOURCES_IMAGE_LAYER_UPDATER_H_