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1 // Copyright 2011 The Chromium Authors. All rights reserved. | 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 | 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 // Temporary forwarding header |
6 #ifndef SkPictureCanvasLayerTextureUpdater_h | 6 #include "cc/skpicture_canvas_layer_texture_updater.h" |
7 #define SkPictureCanvasLayerTextureUpdater_h | |
8 | |
9 #if USE(ACCELERATED_COMPOSITING) | |
10 | |
11 #include "CanvasLayerTextureUpdater.h" | |
12 #include "SkPicture.h" | |
13 | |
14 class SkCanvas; | |
15 | |
16 namespace cc { | |
17 | |
18 class LayerPainterChromium; | |
19 | |
20 // This class records the contentRect into an SkPicture. Subclasses, provide | |
21 // different implementations of tile updating based on this recorded picture. | |
22 // The BitmapSkPictureCanvasLayerTextureUpdater and | |
23 // FrameBufferSkPictureCanvasLayerTextureUpdater are two examples of such | |
24 // implementations. | |
25 class SkPictureCanvasLayerTextureUpdater : public CanvasLayerTextureUpdater { | |
26 public: | |
27 virtual ~SkPictureCanvasLayerTextureUpdater(); | |
28 | |
29 virtual void setOpaque(bool) OVERRIDE; | |
30 | |
31 protected: | |
32 explicit SkPictureCanvasLayerTextureUpdater(PassOwnPtr<LayerPainterChromium>
); | |
33 | |
34 virtual void prepareToUpdate(const IntRect& contentRect, const IntSize& tile
Size, float contentsWidthScale, float contentsHeightScale, IntRect& resultingOpa
queRect, CCRenderingStats&) OVERRIDE; | |
35 void drawPicture(SkCanvas*); | |
36 | |
37 bool layerIsOpaque() const { return m_layerIsOpaque; } | |
38 | |
39 private: | |
40 // Recording canvas. | |
41 SkPicture m_picture; | |
42 // True when it is known that all output pixels will be opaque. | |
43 bool m_layerIsOpaque; | |
44 }; | |
45 | |
46 } // namespace cc | |
47 #endif // USE(ACCELERATED_COMPOSITING) | |
48 #endif // SkPictureCanvasLayerTextureUpdater_h | |
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