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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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