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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CC_RESOURCES_RASTER_TILE_PRIORITY_QUEUE_H_ | |
| 6 #define CC_RESOURCES_RASTER_TILE_PRIORITY_QUEUE_H_ | |
| 7 | |
| 8 #include <vector> | |
| 9 | |
| 10 #include "cc/base/cc_export.h" | |
| 11 #include "cc/layers/picture_layer_impl.h" | |
| 12 #include "cc/resources/tile_priority.h" | |
| 13 | |
| 14 namespace cc { | |
| 15 class PrioritizedTile; | |
| 16 | |
| 17 class CC_EXPORT RasterTilePriorityQueue { | |
| 18 public: | |
| 19 enum class Type { ALL, REQUIRED_FOR_ACTIVATION, REQUIRED_FOR_DRAW }; | |
| 20 | |
| 21 static scoped_ptr<RasterTilePriorityQueue> Create( | |
| 22 const std::vector<PictureLayerImpl*>& active_layers, | |
| 23 const std::vector<PictureLayerImpl*>& pending_layers, | |
| 24 TreePriority tree_priority, | |
| 25 Type type); | |
| 26 | |
| 27 virtual ~RasterTilePriorityQueue() {} | |
| 28 | |
| 29 virtual bool IsEmpty() const = 0; | |
| 30 virtual const PrioritizedTile& Top() const = 0; | |
| 31 virtual void Pop() = 0; | |
| 32 | |
| 33 protected: | |
| 34 RasterTilePriorityQueue() {} | |
| 35 | |
| 36 private: | |
| 37 DISALLOW_COPY_AND_ASSIGN(RasterTilePriorityQueue); | |
| 38 }; | |
| 39 | |
| 40 } // namespace cc | |
| 41 | |
| 42 #endif // CC_RESOURCES_RASTER_TILE_PRIORITY_QUEUE_H_ | |
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