cc/bitmap_skpicture_content_layer_updater.h

   1 // Copyright 2011 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_BITMAP_SKPICTURE_CONTENT_LAYER_UPDATER_H_
   6 #define CC_BITMAP_SKPICTURE_CONTENT_LAYER_UPDATER_H_
   7
   8 #include "cc/skpicture_content_layer_updater.h"
   9 #include "third_party/skia/include/core/SkBitmap.h"
  10
  11 namespace cc {
  12
  13 // This class records the contentRect into an SkPicture, then software rasterizes
  14 // the SkPicture into bitmaps for each tile. This implements Settings::perTilePainting.
  15 class BitmapSkPictureContentLayerUpdater : public SkPictureContentLayerUpdater {
  16 public:
  17     class Resource : public ContentLayerUpdater::Resource {
  18     public:
  19         Resource(BitmapSkPictureContentLayerUpdater*, scoped_ptr<PrioritizedResource>);
  20
  21         virtual void update(ResourceUpdateQueue&, const gfx::Rect& sourceRect, const gfx::Vector2d& destOffset, bool partialUpdate, RenderingStats&) OVERRIDE;
  22
  23     private:
  24         BitmapSkPictureContentLayerUpdater* updater() { return m_updater; }
  25
  26         SkBitmap m_bitmap;
  27         BitmapSkPictureContentLayerUpdater* m_updater;
  28     };
  29
  30     static scoped_refptr<BitmapSkPictureContentLayerUpdater> create(scoped_ptr<LayerPainter>);
  31
  32     virtual scoped_ptr<LayerUpdater::Resource> createResource(PrioritizedResourceManager*) OVERRIDE;
  33     void paintContentsRect(SkCanvas*, const gfx::Rect& sourceRect, RenderingStats&);
  34
  35 private:
  36     explicit BitmapSkPictureContentLayerUpdater(scoped_ptr<LayerPainter>);
  37     virtual ~BitmapSkPictureContentLayerUpdater();
  38 };
  39
  40 }  // namespace cc
  41
  42 #endif  // CC_BITMAP_SKPICTURE_CONTENT_LAYER_UPDATER_H_