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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_BITMAP_CONTENT_LAYER_UPDATER_H_ | 5 #ifndef CC_RESOURCES_BITMAP_CONTENT_LAYER_UPDATER_H_ |
6 #define CC_RESOURCES_BITMAP_CONTENT_LAYER_UPDATER_H_ | 6 #define CC_RESOURCES_BITMAP_CONTENT_LAYER_UPDATER_H_ |
7 | 7 |
8 #include "cc/base/cc_export.h" | 8 #include "cc/base/cc_export.h" |
9 #include "cc/resources/content_layer_updater.h" | 9 #include "cc/resources/content_layer_updater.h" |
10 #include "skia/ext/refptr.h" | 10 #include "skia/ext/refptr.h" |
11 #include "third_party/skia/include/core/SkBitmap.h" | 11 #include "third_party/skia/include/core/SkBitmap.h" |
12 | 12 |
13 class SkCanvas; | 13 class SkCanvas; |
14 | 14 |
15 namespace cc { | 15 namespace cc { |
16 | 16 |
17 class LayerPainter; | |
18 class RenderingStatsInstrumenation; | 17 class RenderingStatsInstrumenation; |
19 | 18 |
20 // This class rasterizes the content_rect into a skia bitmap canvas. It then | 19 // This class rasterizes the content_rect into a skia bitmap canvas. It then |
21 // creates a ResourceUpdate with this bitmap canvas and inserts the | 20 // creates a ResourceUpdate with this bitmap canvas and inserts the |
22 // ResourceBundle to the provided ResourceUpdateQueue. Actual texture uploading | 21 // ResourceBundle to the provided ResourceUpdateQueue. Actual texture uploading |
23 // is done by ResourceUpdateController. | 22 // is done by ResourceUpdateController. |
24 class CC_EXPORT BitmapContentLayerUpdater : public ContentLayerUpdater { | 23 class CC_EXPORT BitmapContentLayerUpdater : public ContentLayerUpdater { |
25 public: | 24 public: |
26 class Resource : public LayerUpdater::Resource { | 25 class Resource : public LayerUpdater::Resource { |
27 public: | 26 public: |
28 Resource(BitmapContentLayerUpdater* updater, | 27 Resource(BitmapContentLayerUpdater* updater, |
29 scoped_ptr<PrioritizedResource> resource); | 28 scoped_ptr<PrioritizedResource> resource); |
30 virtual ~Resource(); | 29 virtual ~Resource(); |
31 | 30 |
32 virtual void Update(ResourceUpdateQueue* queue, | 31 virtual void Update(ResourceUpdateQueue* queue, |
33 const gfx::Rect& source_rect, | 32 const gfx::Rect& source_rect, |
34 const gfx::Vector2d& dest_offset, | 33 const gfx::Vector2d& dest_offset, |
35 bool partial_update) OVERRIDE; | 34 bool partial_update) OVERRIDE; |
36 | 35 |
37 private: | 36 private: |
38 BitmapContentLayerUpdater* updater_; | 37 BitmapContentLayerUpdater* updater_; |
39 | 38 |
40 DISALLOW_COPY_AND_ASSIGN(Resource); | 39 DISALLOW_COPY_AND_ASSIGN(Resource); |
41 }; | 40 }; |
42 | 41 |
43 static scoped_refptr<BitmapContentLayerUpdater> Create( | 42 static scoped_refptr<BitmapContentLayerUpdater> Create( |
44 scoped_ptr<LayerPainter> painter, | 43 scoped_ptr<ContentLayerPainter> painter, |
45 RenderingStatsInstrumentation* stats_instrumenation, | 44 RenderingStatsInstrumentation* stats_instrumenation, |
46 int layer_id); | 45 int layer_id); |
47 | 46 |
48 virtual scoped_ptr<LayerUpdater::Resource> CreateResource( | 47 virtual scoped_ptr<LayerUpdater::Resource> CreateResource( |
49 PrioritizedResourceManager* manager) OVERRIDE; | 48 PrioritizedResourceManager* manager) OVERRIDE; |
50 virtual void PrepareToUpdate(const gfx::Rect& content_rect, | 49 virtual void PrepareToUpdate(const gfx::Rect& content_rect, |
51 const gfx::Size& tile_size, | 50 const gfx::Size& tile_size, |
52 float contents_width_scale, | 51 float contents_width_scale, |
53 float contents_height_scale, | 52 float contents_height_scale, |
54 gfx::Rect* resulting_opaque_rect) OVERRIDE; | 53 gfx::Rect* resulting_opaque_rect) OVERRIDE; |
55 void UpdateTexture(ResourceUpdateQueue* queue, | 54 void UpdateTexture(ResourceUpdateQueue* queue, |
56 PrioritizedResource* resource, | 55 PrioritizedResource* resource, |
57 const gfx::Rect& source_rect, | 56 const gfx::Rect& source_rect, |
58 const gfx::Vector2d& dest_offset, | 57 const gfx::Vector2d& dest_offset, |
59 bool partial_update); | 58 bool partial_update); |
60 virtual void SetOpaque(bool opaque) OVERRIDE; | 59 virtual void SetOpaque(bool opaque) OVERRIDE; |
61 virtual void ReduceMemoryUsage() OVERRIDE; | 60 virtual void ReduceMemoryUsage() OVERRIDE; |
62 | 61 |
63 protected: | 62 protected: |
64 BitmapContentLayerUpdater( | 63 BitmapContentLayerUpdater(scoped_ptr<ContentLayerPainter> painter, |
65 scoped_ptr<LayerPainter> painter, | 64 RenderingStatsInstrumentation* stats_instrumenation, |
66 RenderingStatsInstrumentation* stats_instrumenation, | 65 int layer_id); |
67 int layer_id); | |
68 virtual ~BitmapContentLayerUpdater(); | 66 virtual ~BitmapContentLayerUpdater(); |
69 | 67 |
70 SkBitmap bitmap_backing_; | 68 SkBitmap bitmap_backing_; |
71 skia::RefPtr<SkCanvas> canvas_; | 69 skia::RefPtr<SkCanvas> canvas_; |
72 gfx::Size canvas_size_; | 70 gfx::Size canvas_size_; |
73 | 71 |
74 private: | 72 private: |
75 DISALLOW_COPY_AND_ASSIGN(BitmapContentLayerUpdater); | 73 DISALLOW_COPY_AND_ASSIGN(BitmapContentLayerUpdater); |
76 }; | 74 }; |
77 | 75 |
78 } // namespace cc | 76 } // namespace cc |
79 | 77 |
80 #endif // CC_RESOURCES_BITMAP_CONTENT_LAYER_UPDATER_H_ | 78 #endif // CC_RESOURCES_BITMAP_CONTENT_LAYER_UPDATER_H_ |
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