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1 // Copyright 2011 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 | 5 |
6 #ifndef SkPictureContentLayerUpdater_h | 6 #ifndef SkPictureContentLayerUpdater_h |
7 #define SkPictureContentLayerUpdater_h | 7 #define SkPictureContentLayerUpdater_h |
8 | 8 |
9 #include "cc/content_layer_updater.h" | 9 #include "cc/content_layer_updater.h" |
10 #include "third_party/skia/include/core/SkPicture.h" | 10 #include "third_party/skia/include/core/SkPicture.h" |
11 | 11 |
12 class SkCanvas; | 12 class SkCanvas; |
13 | 13 |
14 namespace cc { | 14 namespace cc { |
15 | 15 |
16 class LayerPainter; | 16 class LayerPainter; |
17 | 17 |
18 // This class records the contentRect into an SkPicture. Subclasses, provide | 18 // This class records the contentRect into an SkPicture. Subclasses, provide |
19 // different implementations of tile updating based on this recorded picture. | 19 // different implementations of tile updating based on this recorded picture. |
20 // The BitmapSkPictureContentLayerUpdater and | 20 // The BitmapSkPictureContentLayerUpdater and |
21 // FrameBufferSkPictureContentLayerUpdater are two examples of such | 21 // FrameBufferSkPictureContentLayerUpdater are two examples of such |
22 // implementations. | 22 // implementations. |
23 class SkPictureContentLayerUpdater : public ContentLayerUpdater { | 23 class SkPictureContentLayerUpdater : public ContentLayerUpdater { |
24 public: | 24 public: |
25 class Resource : public LayerUpdater::Resource { | 25 class Resource : public LayerUpdater::Resource { |
26 public: | 26 public: |
27 Resource(SkPictureContentLayerUpdater*, scoped_ptr<PrioritizedTexture>); | 27 Resource(SkPictureContentLayerUpdater*, scoped_ptr<PrioritizedTexture>); |
28 virtual ~Resource(); | 28 virtual ~Resource(); |
29 | 29 |
30 virtual void update(ResourceUpdateQueue&, const IntRect& sourceRect, con
st IntSize& destOffset, bool partialUpdate, RenderingStats&) OVERRIDE; | 30 virtual void update(ResourceUpdateQueue&, const gfx::Rect& sourceRect, c
onst gfx::Vector2d& destOffset, bool partialUpdate, RenderingStats&) OVERRIDE; |
31 | 31 |
32 private: | 32 private: |
33 SkPictureContentLayerUpdater* updater() { return m_updater; } | 33 SkPictureContentLayerUpdater* updater() { return m_updater; } |
34 | 34 |
35 SkPictureContentLayerUpdater* m_updater; | 35 SkPictureContentLayerUpdater* m_updater; |
36 }; | 36 }; |
37 | 37 |
38 static scoped_refptr<SkPictureContentLayerUpdater> create(scoped_ptr<LayerPa
inter>); | 38 static scoped_refptr<SkPictureContentLayerUpdater> create(scoped_ptr<LayerPa
inter>); |
39 | 39 |
40 virtual scoped_ptr<LayerUpdater::Resource> createResource(PrioritizedTexture
Manager*) OVERRIDE; | 40 virtual scoped_ptr<LayerUpdater::Resource> createResource(PrioritizedTexture
Manager*) OVERRIDE; |
41 virtual void setOpaque(bool) OVERRIDE; | 41 virtual void setOpaque(bool) OVERRIDE; |
42 | 42 |
43 protected: | 43 protected: |
44 explicit SkPictureContentLayerUpdater(scoped_ptr<LayerPainter>); | 44 explicit SkPictureContentLayerUpdater(scoped_ptr<LayerPainter>); |
45 virtual ~SkPictureContentLayerUpdater(); | 45 virtual ~SkPictureContentLayerUpdater(); |
46 | 46 |
47 virtual void prepareToUpdate(const IntRect& contentRect, const IntSize& tile
Size, float contentsWidthScale, float contentsHeightScale, IntRect& resultingOpa
queRect, RenderingStats&) OVERRIDE; | 47 virtual void prepareToUpdate(const gfx::Rect& contentRect, const gfx::Size&
tileSize, float contentsWidthScale, float contentsHeightScale, gfx::Rect& result
ingOpaqueRect, RenderingStats&) OVERRIDE; |
48 void drawPicture(SkCanvas*); | 48 void drawPicture(SkCanvas*); |
49 void updateTexture(ResourceUpdateQueue& queue, PrioritizedTexture* texture,
const IntRect& sourceRect, const IntSize& destOffset, bool partialUpdate); | 49 void updateTexture(ResourceUpdateQueue& queue, PrioritizedTexture* texture,
const gfx::Rect& sourceRect, const gfx::Vector2d& destOffset, bool partialUpdate
); |
50 | 50 |
51 bool layerIsOpaque() const { return m_layerIsOpaque; } | 51 bool layerIsOpaque() const { return m_layerIsOpaque; } |
52 | 52 |
53 private: | 53 private: |
54 // Recording canvas. | 54 // Recording canvas. |
55 SkPicture m_picture; | 55 SkPicture m_picture; |
56 // True when it is known that all output pixels will be opaque. | 56 // True when it is known that all output pixels will be opaque. |
57 bool m_layerIsOpaque; | 57 bool m_layerIsOpaque; |
58 }; | 58 }; |
59 | 59 |
60 } // namespace cc | 60 } // namespace cc |
61 #endif // SkPictureContentLayerUpdater_h | 61 #endif // SkPictureContentLayerUpdater_h |
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