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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 #ifndef CC_RESOURCES_LAYER_UPDATER_H_ | 5 #ifndef CC_RESOURCES_LAYER_UPDATER_H_ |
6 #define CC_RESOURCES_LAYER_UPDATER_H_ | 6 #define CC_RESOURCES_LAYER_UPDATER_H_ |
7 | 7 |
8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
10 #include "cc/base/cc_export.h" | 10 #include "cc/base/cc_export.h" |
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42 }; | 42 }; |
43 | 43 |
44 LayerUpdater() {} | 44 LayerUpdater() {} |
45 | 45 |
46 virtual scoped_ptr<Resource> CreateResource( | 46 virtual scoped_ptr<Resource> CreateResource( |
47 PrioritizedResourceManager* manager) = 0; | 47 PrioritizedResourceManager* manager) = 0; |
48 // The |resulting_opaque_rect| gives back a region of the layer that was | 48 // The |resulting_opaque_rect| gives back a region of the layer that was |
49 // painted opaque. If the layer is marked opaque in the updater, then this | 49 // painted opaque. If the layer is marked opaque in the updater, then this |
50 // region should be ignored in preference for the entire layer's area. | 50 // region should be ignored in preference for the entire layer's area. |
51 virtual void PrepareToUpdate(gfx::Rect content_rect, | 51 virtual void PrepareToUpdate(gfx::Rect content_rect, |
| 52 gfx::Rect paint_rect, |
52 gfx::Size tile_size, | 53 gfx::Size tile_size, |
53 float contents_width_scale, | 54 float contents_width_scale, |
54 float contents_height_scale, | 55 float contents_height_scale, |
55 gfx::Rect* resulting_opaque_rect) {} | 56 gfx::Rect* resulting_opaque_rect) {} |
56 virtual void ReduceMemoryUsage() {} | 57 virtual void ReduceMemoryUsage() {} |
57 | 58 |
58 // Set true by the layer when it is known that the entire output is going to | 59 // Set true by the layer when it is known that the entire output is going to |
59 // be opaque. | 60 // be opaque. |
60 virtual void SetOpaque(bool opaque) {} | 61 virtual void SetOpaque(bool opaque) {} |
61 | 62 |
62 protected: | 63 protected: |
63 virtual ~LayerUpdater() {} | 64 virtual ~LayerUpdater() {} |
64 | 65 |
65 private: | 66 private: |
66 friend class base::RefCounted<LayerUpdater>; | 67 friend class base::RefCounted<LayerUpdater>; |
67 | 68 |
68 DISALLOW_COPY_AND_ASSIGN(LayerUpdater); | 69 DISALLOW_COPY_AND_ASSIGN(LayerUpdater); |
69 }; | 70 }; |
70 | 71 |
71 } // namespace cc | 72 } // namespace cc |
72 | 73 |
73 #endif // CC_RESOURCES_LAYER_UPDATER_H_ | 74 #endif // CC_RESOURCES_LAYER_UPDATER_H_ |
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