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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 CCDamageTracker_h | 5 #ifndef CCDamageTracker_h |
6 #define CCDamageTracker_h | 6 #define CCDamageTracker_h |
7 | 7 |
8 #include "base/hash_tables.h" | 8 #include "base/hash_tables.h" |
9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
10 #include "FloatRect.h" | 10 #include "ui/gfx/rect_f.h" |
11 #include <vector> | 11 #include <vector> |
12 | 12 |
| 13 class SkImageFilter; |
| 14 |
| 15 namespace gfx { |
| 16 class Rect; |
| 17 } |
| 18 |
13 namespace WebKit { | 19 namespace WebKit { |
14 class WebFilterOperations; | 20 class WebFilterOperations; |
15 } | 21 } |
16 | 22 |
17 class SkImageFilter; | |
18 | |
19 namespace cc { | 23 namespace cc { |
20 | 24 |
21 class LayerImpl; | 25 class LayerImpl; |
22 class RenderSurfaceImpl; | 26 class RenderSurfaceImpl; |
23 | 27 |
24 // Computes the region where pixels have actually changed on a RenderSurfaceImpl
. This region is used | 28 // Computes the region where pixels have actually changed on a RenderSurfaceImpl
. This region is used |
25 // to scissor what is actually drawn to the screen to save GPU computation and b
andwidth. | 29 // to scissor what is actually drawn to the screen to save GPU computation and b
andwidth. |
26 class DamageTracker { | 30 class DamageTracker { |
27 public: | 31 public: |
28 static scoped_ptr<DamageTracker> create(); | 32 static scoped_ptr<DamageTracker> create(); |
29 ~DamageTracker(); | 33 ~DamageTracker(); |
30 | 34 |
31 void didDrawDamagedArea() { m_currentDamageRect = FloatRect(); } | 35 void didDrawDamagedArea() { m_currentDamageRect = gfx::RectF(); } |
32 void forceFullDamageNextUpdate() { m_forceFullDamageNextUpdate = true; } | 36 void forceFullDamageNextUpdate() { m_forceFullDamageNextUpdate = true; } |
33 void updateDamageTrackingState(const std::vector<LayerImpl*>& layerList, int
targetSurfaceLayerID, bool targetSurfacePropertyChangedOnlyFromDescendant, cons
t IntRect& targetSurfaceContentRect, LayerImpl* targetSurfaceMaskLayer, const We
bKit::WebFilterOperations&, SkImageFilter* filter); | 37 void updateDamageTrackingState(const std::vector<LayerImpl*>& layerList, int
targetSurfaceLayerID, bool targetSurfacePropertyChangedOnlyFromDescendant, cons
t gfx::Rect& targetSurfaceContentRect, LayerImpl* targetSurfaceMaskLayer, const
WebKit::WebFilterOperations&, SkImageFilter* filter); |
34 | 38 |
35 const FloatRect& currentDamageRect() { return m_currentDamageRect; } | 39 const gfx::RectF& currentDamageRect() { return m_currentDamageRect; } |
36 | 40 |
37 private: | 41 private: |
38 DamageTracker(); | 42 DamageTracker(); |
39 | 43 |
40 FloatRect trackDamageFromActiveLayers(const std::vector<LayerImpl*>& layerLi
st, int targetSurfaceLayerID); | 44 gfx::RectF trackDamageFromActiveLayers(const std::vector<LayerImpl*>& layerL
ist, int targetSurfaceLayerID); |
41 FloatRect trackDamageFromSurfaceMask(LayerImpl* targetSurfaceMaskLayer); | 45 gfx::RectF trackDamageFromSurfaceMask(LayerImpl* targetSurfaceMaskLayer); |
42 FloatRect trackDamageFromLeftoverRects(); | 46 gfx::RectF trackDamageFromLeftoverRects(); |
43 | 47 |
44 FloatRect removeRectFromCurrentFrame(int layerID, bool& layerIsNew); | 48 gfx::RectF removeRectFromCurrentFrame(int layerID, bool& layerIsNew); |
45 void saveRectForNextFrame(int layerID, const FloatRect& targetSpaceRect); | 49 void saveRectForNextFrame(int layerID, const gfx::RectF& targetSpaceRect); |
46 | 50 |
47 // These helper functions are used only in trackDamageFromActiveLayers(). | 51 // These helper functions are used only in trackDamageFromActiveLayers(). |
48 void extendDamageForLayer(LayerImpl*, FloatRect& targetDamageRect); | 52 void extendDamageForLayer(LayerImpl*, gfx::RectF& targetDamageRect); |
49 void extendDamageForRenderSurface(LayerImpl*, FloatRect& targetDamageRect); | 53 void extendDamageForRenderSurface(LayerImpl*, gfx::RectF& targetDamageRect); |
50 | 54 |
51 // To correctly track exposed regions, two hashtables of rects are maintaine
d. | 55 // To correctly track exposed regions, two hashtables of rects are maintaine
d. |
52 // The "current" map is used to compute exposed regions of the current frame
, while | 56 // The "current" map is used to compute exposed regions of the current frame
, while |
53 // the "next" map is used to collect layer rects that are used in the next f
rame. | 57 // the "next" map is used to collect layer rects that are used in the next f
rame. |
54 typedef base::hash_map<int, FloatRect> RectMap; | 58 typedef base::hash_map<int, gfx::RectF> RectMap; |
55 scoped_ptr<RectMap> m_currentRectHistory; | 59 scoped_ptr<RectMap> m_currentRectHistory; |
56 scoped_ptr<RectMap> m_nextRectHistory; | 60 scoped_ptr<RectMap> m_nextRectHistory; |
57 | 61 |
58 FloatRect m_currentDamageRect; | 62 gfx::RectF m_currentDamageRect; |
59 bool m_forceFullDamageNextUpdate; | 63 bool m_forceFullDamageNextUpdate; |
60 }; | 64 }; |
61 | 65 |
62 } // namespace cc | 66 } // namespace cc |
63 | 67 |
64 #endif // CCDamageTracker_h | 68 #endif // CCDamageTracker_h |
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