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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 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_PICTURE_LAYER_TILING_H_ | 5 #ifndef CC_RESOURCES_PICTURE_LAYER_TILING_H_ |
6 #define CC_RESOURCES_PICTURE_LAYER_TILING_H_ | 6 #define CC_RESOURCES_PICTURE_LAYER_TILING_H_ |
7 | 7 |
8 #include <utility> | 8 #include <utility> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
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24 | 24 |
25 class CC_EXPORT PictureLayerTilingClient { | 25 class CC_EXPORT PictureLayerTilingClient { |
26 public: | 26 public: |
27 // Create a tile at the given content_rect (in the contents scale of the | 27 // Create a tile at the given content_rect (in the contents scale of the |
28 // tiling) This might return null if the client cannot create such a tile. | 28 // tiling) This might return null if the client cannot create such a tile. |
29 virtual scoped_refptr<Tile> CreateTile( | 29 virtual scoped_refptr<Tile> CreateTile( |
30 PictureLayerTiling* tiling, | 30 PictureLayerTiling* tiling, |
31 const gfx::Rect& content_rect) = 0; | 31 const gfx::Rect& content_rect) = 0; |
32 virtual void UpdatePile(Tile* tile) = 0; | 32 virtual void UpdatePile(Tile* tile) = 0; |
33 virtual gfx::Size CalculateTileSize( | 33 virtual gfx::Size CalculateTileSize( |
34 gfx::Size content_bounds) const = 0; | 34 const gfx::Size& content_bounds) const = 0; |
35 virtual const Region* GetInvalidation() = 0; | 35 virtual const Region* GetInvalidation() = 0; |
36 virtual const PictureLayerTiling* GetTwinTiling( | 36 virtual const PictureLayerTiling* GetTwinTiling( |
37 const PictureLayerTiling* tiling) const = 0; | 37 const PictureLayerTiling* tiling) const = 0; |
38 | 38 |
39 protected: | 39 protected: |
40 virtual ~PictureLayerTilingClient() {} | 40 virtual ~PictureLayerTilingClient() {} |
41 }; | 41 }; |
42 | 42 |
43 class CC_EXPORT PictureLayerTiling { | 43 class CC_EXPORT PictureLayerTiling { |
44 public: | 44 public: |
45 ~PictureLayerTiling(); | 45 ~PictureLayerTiling(); |
46 | 46 |
47 // Create a tiling with no tiles. CreateTiles must be called to add some. | 47 // Create a tiling with no tiles. CreateTiles must be called to add some. |
48 static scoped_ptr<PictureLayerTiling> Create( | 48 static scoped_ptr<PictureLayerTiling> Create( |
49 float contents_scale, | 49 float contents_scale, |
50 gfx::Size layer_bounds, | 50 const gfx::Size& layer_bounds, |
51 PictureLayerTilingClient* client); | 51 PictureLayerTilingClient* client); |
52 gfx::Size layer_bounds() const { return layer_bounds_; } | 52 gfx::Size layer_bounds() const { return layer_bounds_; } |
53 void SetLayerBounds(gfx::Size layer_bounds); | 53 void SetLayerBounds(const gfx::Size& layer_bounds); |
54 void Invalidate(const Region& layer_region); | 54 void Invalidate(const Region& layer_region); |
55 void CreateMissingTilesInLiveTilesRect(); | 55 void CreateMissingTilesInLiveTilesRect(); |
56 | 56 |
57 void SetCanUseLCDText(bool can_use_lcd_text); | 57 void SetCanUseLCDText(bool can_use_lcd_text); |
58 | 58 |
59 void SetClient(PictureLayerTilingClient* client); | 59 void SetClient(PictureLayerTilingClient* client); |
60 void set_resolution(TileResolution resolution) { resolution_ = resolution; } | 60 void set_resolution(TileResolution resolution) { resolution_ = resolution; } |
61 TileResolution resolution() const { return resolution_; } | 61 TileResolution resolution() const { return resolution_; } |
62 | 62 |
63 gfx::Rect ContentRect() const; | 63 gfx::Rect ContentRect() const; |
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128 | 128 |
129 friend class PictureLayerTiling; | 129 friend class PictureLayerTiling; |
130 }; | 130 }; |
131 | 131 |
132 Region OpaqueRegionInContentRect(const gfx::Rect& content_rect) const; | 132 Region OpaqueRegionInContentRect(const gfx::Rect& content_rect) const; |
133 | 133 |
134 void Reset(); | 134 void Reset(); |
135 | 135 |
136 void UpdateTilePriorities( | 136 void UpdateTilePriorities( |
137 WhichTree tree, | 137 WhichTree tree, |
138 gfx::Size device_viewport, | 138 const gfx::Size& device_viewport, |
139 const gfx::Rect& viewport_in_layer_space, | 139 const gfx::Rect& viewport_in_layer_space, |
140 const gfx::Rect& visible_layer_rect, | 140 const gfx::Rect& visible_layer_rect, |
141 gfx::Size last_layer_bounds, | 141 const gfx::Size& last_layer_bounds, |
142 gfx::Size current_layer_bounds, | 142 const gfx::Size& current_layer_bounds, |
143 float last_layer_contents_scale, | 143 float last_layer_contents_scale, |
144 float current_layer_contents_scale, | 144 float current_layer_contents_scale, |
145 const gfx::Transform& last_screen_transform, | 145 const gfx::Transform& last_screen_transform, |
146 const gfx::Transform& current_screen_transform, | 146 const gfx::Transform& current_screen_transform, |
147 double current_frame_time_in_seconds, | 147 double current_frame_time_in_seconds, |
148 size_t max_tiles_for_interest_area); | 148 size_t max_tiles_for_interest_area); |
149 | 149 |
150 // Copies the src_tree priority into the dst_tree priority for all tiles. | 150 // Copies the src_tree priority into the dst_tree priority for all tiles. |
151 // The src_tree priority is reset to the lowest priority possible. This | 151 // The src_tree priority is reset to the lowest priority possible. This |
152 // also updates the pile on each tile to be the current client's pile. | 152 // also updates the pile on each tile to be the current client's pile. |
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186 | 186 |
187 bool has_ever_been_updated() const { | 187 bool has_ever_been_updated() const { |
188 return last_impl_frame_time_in_seconds_ != 0.0; | 188 return last_impl_frame_time_in_seconds_ != 0.0; |
189 } | 189 } |
190 | 190 |
191 protected: | 191 protected: |
192 typedef std::pair<int, int> TileMapKey; | 192 typedef std::pair<int, int> TileMapKey; |
193 typedef base::hash_map<TileMapKey, scoped_refptr<Tile> > TileMap; | 193 typedef base::hash_map<TileMapKey, scoped_refptr<Tile> > TileMap; |
194 | 194 |
195 PictureLayerTiling(float contents_scale, | 195 PictureLayerTiling(float contents_scale, |
196 gfx::Size layer_bounds, | 196 const gfx::Size& layer_bounds, |
197 PictureLayerTilingClient* client); | 197 PictureLayerTilingClient* client); |
198 void SetLiveTilesRect(const gfx::Rect& live_tiles_rect); | 198 void SetLiveTilesRect(const gfx::Rect& live_tiles_rect); |
199 void CreateTile(int i, int j, const PictureLayerTiling* twin_tiling); | 199 void CreateTile(int i, int j, const PictureLayerTiling* twin_tiling); |
200 | 200 |
201 // Given properties. | 201 // Given properties. |
202 float contents_scale_; | 202 float contents_scale_; |
203 gfx::Size layer_bounds_; | 203 gfx::Size layer_bounds_; |
204 TileResolution resolution_; | 204 TileResolution resolution_; |
205 PictureLayerTilingClient* client_; | 205 PictureLayerTilingClient* client_; |
206 | 206 |
207 // Internal data. | 207 // Internal data. |
208 TilingData tiling_data_; | 208 TilingData tiling_data_; |
209 TileMap tiles_; // It is not legal to have a NULL tile in the tiles_ map. | 209 TileMap tiles_; // It is not legal to have a NULL tile in the tiles_ map. |
210 gfx::Rect live_tiles_rect_; | 210 gfx::Rect live_tiles_rect_; |
211 | 211 |
212 // State saved for computing velocities based upon finite differences. | 212 // State saved for computing velocities based upon finite differences. |
213 double last_impl_frame_time_in_seconds_; | 213 double last_impl_frame_time_in_seconds_; |
214 | 214 |
215 friend class CoverageIterator; | 215 friend class CoverageIterator; |
216 | 216 |
217 private: | 217 private: |
218 DISALLOW_ASSIGN(PictureLayerTiling); | 218 DISALLOW_ASSIGN(PictureLayerTiling); |
219 | 219 |
220 RectExpansionCache expansion_cache_; | 220 RectExpansionCache expansion_cache_; |
221 }; | 221 }; |
222 | 222 |
223 } // namespace cc | 223 } // namespace cc |
224 | 224 |
225 #endif // CC_RESOURCES_PICTURE_LAYER_TILING_H_ | 225 #endif // CC_RESOURCES_PICTURE_LAYER_TILING_H_ |
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