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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_TREES_DAMAGE_TRACKER_H_ | 5 #ifndef CC_TREES_DAMAGE_TRACKER_H_ |
6 #define CC_TREES_DAMAGE_TRACKER_H_ | 6 #define CC_TREES_DAMAGE_TRACKER_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
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25 class RenderSurfaceImpl; | 25 class RenderSurfaceImpl; |
26 | 26 |
27 // Computes the region where pixels have actually changed on a | 27 // Computes the region where pixels have actually changed on a |
28 // RenderSurfaceImpl. This region is used to scissor what is actually drawn to | 28 // RenderSurfaceImpl. This region is used to scissor what is actually drawn to |
29 // the screen to save GPU computation and bandwidth. | 29 // the screen to save GPU computation and bandwidth. |
30 class CC_EXPORT DamageTracker { | 30 class CC_EXPORT DamageTracker { |
31 public: | 31 public: |
32 static std::unique_ptr<DamageTracker> Create(); | 32 static std::unique_ptr<DamageTracker> Create(); |
33 ~DamageTracker(); | 33 ~DamageTracker(); |
34 | 34 |
35 static void UpdateDamageTracking(LayerTreeImpl* layer_tree_impl, | 35 static void UpdateDamageTracking( |
36 const LayerImplList& render_surface_list); | 36 LayerTreeImpl* layer_tree_impl, |
| 37 const RenderSurfaceList& render_surface_list); |
37 | 38 |
38 void DidDrawDamagedArea() { current_damage_ = DamageAccumulator(); } | 39 void DidDrawDamagedArea() { current_damage_ = DamageAccumulator(); } |
39 void AddDamageNextUpdate(const gfx::Rect& dmg) { current_damage_.Union(dmg); } | 40 void AddDamageNextUpdate(const gfx::Rect& dmg) { current_damage_.Union(dmg); } |
40 | 41 |
41 bool GetDamageRectIfValid(gfx::Rect* rect); | 42 bool GetDamageRectIfValid(gfx::Rect* rect); |
42 | 43 |
43 private: | 44 private: |
44 DamageTracker(); | 45 DamageTracker(); |
45 | 46 |
46 class DamageAccumulator { | 47 class DamageAccumulator { |
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142 | 143 |
143 // Damage accumulated since the last call to PrepareForUpdate(). | 144 // Damage accumulated since the last call to PrepareForUpdate(). |
144 DamageAccumulator damage_for_this_update_; | 145 DamageAccumulator damage_for_this_update_; |
145 | 146 |
146 DISALLOW_COPY_AND_ASSIGN(DamageTracker); | 147 DISALLOW_COPY_AND_ASSIGN(DamageTracker); |
147 }; | 148 }; |
148 | 149 |
149 } // namespace cc | 150 } // namespace cc |
150 | 151 |
151 #endif // CC_TREES_DAMAGE_TRACKER_H_ | 152 #endif // CC_TREES_DAMAGE_TRACKER_H_ |
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