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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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