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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_TILES_EVICTION_TILE_PRIORITY_QUEUE_H_
#define CC_TILES_EVICTION_TILE_PRIORITY_QUEUE_H_
#include <set>
#include <utility>
#include <vector>
#include "cc/base/cc_export.h"
#include "cc/layers/picture_layer_impl.h"
#include "cc/tiles/tile_priority.h"
#include "cc/tiles/tiling_set_eviction_queue.h"
namespace cc {
class PrioritizedTile;
class CC_EXPORT EvictionTilePriorityQueue {
public:
EvictionTilePriorityQueue();
~EvictionTilePriorityQueue();
void Build(const std::vector<PictureLayerImpl*>& active_layers,
const std::vector<PictureLayerImpl*>& pending_layers,
TreePriority tree_priority);
bool IsEmpty() const;
const PrioritizedTile& Top() const;
void Pop();
private:
ScopedPtrVector<TilingSetEvictionQueue>& GetNextQueues();
const ScopedPtrVector<TilingSetEvictionQueue>& GetNextQueues() const;
ScopedPtrVector<TilingSetEvictionQueue> active_queues_;
ScopedPtrVector<TilingSetEvictionQueue> pending_queues_;
TreePriority tree_priority_;
DISALLOW_COPY_AND_ASSIGN(EvictionTilePriorityQueue);
};
} // namespace cc
#endif // CC_TILES_EVICTION_TILE_PRIORITY_QUEUE_H_
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