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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 <set> | 8 #include <set> |
9 #include <utility> | 9 #include <utility> |
10 #include <vector> | 10 #include <vector> |
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41 virtual gfx::Size CalculateTileSize( | 41 virtual gfx::Size CalculateTileSize( |
42 const gfx::Size& content_bounds) const = 0; | 42 const gfx::Size& content_bounds) const = 0; |
43 // This invalidation region defines the area (if any, it can by null) that | 43 // This invalidation region defines the area (if any, it can by null) that |
44 // tiles can not be shared between pending and active trees. | 44 // tiles can not be shared between pending and active trees. |
45 virtual const Region* GetPendingInvalidation() = 0; | 45 virtual const Region* GetPendingInvalidation() = 0; |
46 virtual const PictureLayerTiling* GetPendingOrActiveTwinTiling( | 46 virtual const PictureLayerTiling* GetPendingOrActiveTwinTiling( |
47 const PictureLayerTiling* tiling) const = 0; | 47 const PictureLayerTiling* tiling) const = 0; |
48 virtual PictureLayerTiling* GetRecycledTwinTiling( | 48 virtual PictureLayerTiling* GetRecycledTwinTiling( |
49 const PictureLayerTiling* tiling) = 0; | 49 const PictureLayerTiling* tiling) = 0; |
50 virtual TilePriority::PriorityBin GetMaxTilePriorityBin() const = 0; | 50 virtual TilePriority::PriorityBin GetMaxTilePriorityBin() const = 0; |
51 virtual size_t GetMaxTilesForInterestArea() const = 0; | |
52 virtual float GetSkewportTargetTimeInSeconds() const = 0; | |
53 virtual int GetSkewportExtrapolationLimitInContentPixels() const = 0; | |
54 virtual WhichTree GetTree() const = 0; | 51 virtual WhichTree GetTree() const = 0; |
55 virtual bool RequiresHighResToDraw() const = 0; | 52 virtual bool RequiresHighResToDraw() const = 0; |
56 | 53 |
57 protected: | 54 protected: |
58 virtual ~PictureLayerTilingClient() {} | 55 virtual ~PictureLayerTilingClient() {} |
59 }; | 56 }; |
60 | 57 |
61 class CC_EXPORT PictureLayerTiling { | 58 class CC_EXPORT PictureLayerTiling { |
62 public: | 59 public: |
63 static const int kBorderTexels = 1; | 60 static const int kBorderTexels = 1; |
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117 TilingData::Iterator visible_iterator_; | 114 TilingData::Iterator visible_iterator_; |
118 TilingData::SpiralDifferenceIterator spiral_iterator_; | 115 TilingData::SpiralDifferenceIterator spiral_iterator_; |
119 }; | 116 }; |
120 | 117 |
121 ~PictureLayerTiling(); | 118 ~PictureLayerTiling(); |
122 | 119 |
123 // Create a tiling with no tiles. CreateTiles must be called to add some. | 120 // Create a tiling with no tiles. CreateTiles must be called to add some. |
124 static scoped_ptr<PictureLayerTiling> Create( | 121 static scoped_ptr<PictureLayerTiling> Create( |
125 float contents_scale, | 122 float contents_scale, |
126 const gfx::Size& layer_bounds, | 123 const gfx::Size& layer_bounds, |
127 PictureLayerTilingClient* client); | 124 PictureLayerTilingClient* client, |
| 125 size_t max_tiles_for_interest_area, |
| 126 float skewport_target_time_in_seconds, |
| 127 int skewport_extrapolation_limit_in_content_pixels); |
| 128 |
128 gfx::Size layer_bounds() const { return layer_bounds_; } | 129 gfx::Size layer_bounds() const { return layer_bounds_; } |
129 void UpdateTilesToCurrentRasterSource(RasterSource* raster_source, | 130 void UpdateTilesToCurrentRasterSource(RasterSource* raster_source, |
130 const Region& layer_invalidation, | 131 const Region& layer_invalidation, |
131 const gfx::Size& new_layer_bounds); | 132 const gfx::Size& new_layer_bounds); |
132 void CreateMissingTilesInLiveTilesRect(); | 133 void CreateMissingTilesInLiveTilesRect(); |
133 void RemoveTilesInRegion(const Region& layer_region); | 134 void RemoveTilesInRegion(const Region& layer_region); |
134 | 135 |
135 void SetClient(PictureLayerTilingClient* client); | 136 void SetClient(PictureLayerTilingClient* client); |
136 void set_resolution(TileResolution resolution) { resolution_ = resolution; } | 137 void set_resolution(TileResolution resolution) { resolution_ = resolution; } |
137 TileResolution resolution() const { return resolution_; } | 138 TileResolution resolution() const { return resolution_; } |
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281 protected: | 282 protected: |
282 friend class CoverageIterator; | 283 friend class CoverageIterator; |
283 friend class TilingRasterTileIterator; | 284 friend class TilingRasterTileIterator; |
284 friend class TilingSetEvictionQueue; | 285 friend class TilingSetEvictionQueue; |
285 | 286 |
286 typedef std::pair<int, int> TileMapKey; | 287 typedef std::pair<int, int> TileMapKey; |
287 typedef base::hash_map<TileMapKey, scoped_refptr<Tile>> TileMap; | 288 typedef base::hash_map<TileMapKey, scoped_refptr<Tile>> TileMap; |
288 | 289 |
289 PictureLayerTiling(float contents_scale, | 290 PictureLayerTiling(float contents_scale, |
290 const gfx::Size& layer_bounds, | 291 const gfx::Size& layer_bounds, |
291 PictureLayerTilingClient* client); | 292 PictureLayerTilingClient* client, |
| 293 size_t max_tiles_for_interest_area, |
| 294 float skewport_target_time_in_seconds, |
| 295 int skewport_extrapolation_limit_in_content_pixels); |
292 void SetLiveTilesRect(const gfx::Rect& live_tiles_rect); | 296 void SetLiveTilesRect(const gfx::Rect& live_tiles_rect); |
293 void VerifyLiveTilesRect(); | 297 void VerifyLiveTilesRect(); |
294 Tile* CreateTile(int i, int j, const PictureLayerTiling* twin_tiling); | 298 Tile* CreateTile(int i, int j, const PictureLayerTiling* twin_tiling); |
295 // Returns true if the Tile existed and was removed from the tiling. | 299 // Returns true if the Tile existed and was removed from the tiling. |
296 bool RemoveTileAt(int i, int j, PictureLayerTiling* recycled_twin); | 300 bool RemoveTileAt(int i, int j, PictureLayerTiling* recycled_twin); |
297 | 301 |
298 // Computes a skewport. The calculation extrapolates the last visible | 302 // Computes a skewport. The calculation extrapolates the last visible |
299 // rect and the current visible rect to expand the skewport to where it | 303 // rect and the current visible rect to expand the skewport to where it |
300 // would be in |skewport_target_time| seconds. Note that the skewport | 304 // would be in |skewport_target_time| seconds. Note that the skewport |
301 // is guaranteed to contain the current visible rect. | 305 // is guaranteed to contain the current visible rect. |
302 gfx::Rect ComputeSkewport(double current_frame_time_in_seconds, | 306 gfx::Rect ComputeSkewport(double current_frame_time_in_seconds, |
303 const gfx::Rect& visible_rect_in_content_space) | 307 const gfx::Rect& visible_rect_in_content_space) |
304 const; | 308 const; |
305 | 309 |
306 void UpdateEvictionCacheIfNeeded(TreePriority tree_priority); | 310 void UpdateEvictionCacheIfNeeded(TreePriority tree_priority); |
307 const std::vector<Tile*>* GetEvictionTiles(TreePriority tree_priority, | 311 const std::vector<Tile*>* GetEvictionTiles(TreePriority tree_priority, |
308 EvictionCategory category); | 312 EvictionCategory category); |
309 | 313 |
310 void Invalidate(const Region& layer_region); | 314 void Invalidate(const Region& layer_region); |
311 | 315 |
312 void DoInvalidate(const Region& layer_region, | 316 void DoInvalidate(const Region& layer_region, |
313 bool recreate_invalidated_tiles); | 317 bool recreate_invalidated_tiles); |
314 | 318 |
315 void UpdateTileAndTwinPriority(Tile* tile) const; | 319 void UpdateTileAndTwinPriority(Tile* tile) const; |
316 void UpdateTilePriority(Tile* tile) const; | 320 void UpdateTilePriority(Tile* tile) const; |
317 | 321 |
| 322 const size_t max_tiles_for_interest_area_; |
| 323 const float skewport_target_time_in_seconds_; |
| 324 const int skewport_extrapolation_limit_in_content_pixels_; |
| 325 |
318 // Given properties. | 326 // Given properties. |
319 float contents_scale_; | 327 float contents_scale_; |
320 gfx::Size layer_bounds_; | 328 gfx::Size layer_bounds_; |
321 TileResolution resolution_; | 329 TileResolution resolution_; |
322 PictureLayerTilingClient* client_; | 330 PictureLayerTilingClient* client_; |
323 | 331 |
324 // Internal data. | 332 // Internal data. |
325 TilingData tiling_data_; | 333 TilingData tiling_data_; |
326 TileMap tiles_; // It is not legal to have a NULL tile in the tiles_ map. | 334 TileMap tiles_; // It is not legal to have a NULL tile in the tiles_ map. |
327 gfx::Rect live_tiles_rect_; | 335 gfx::Rect live_tiles_rect_; |
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362 | 370 |
363 private: | 371 private: |
364 DISALLOW_ASSIGN(PictureLayerTiling); | 372 DISALLOW_ASSIGN(PictureLayerTiling); |
365 | 373 |
366 RectExpansionCache expansion_cache_; | 374 RectExpansionCache expansion_cache_; |
367 }; | 375 }; |
368 | 376 |
369 } // namespace cc | 377 } // namespace cc |
370 | 378 |
371 #endif // CC_RESOURCES_PICTURE_LAYER_TILING_H_ | 379 #endif // CC_RESOURCES_PICTURE_LAYER_TILING_H_ |
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