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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_RASTER_TILE_PRIORITY_QUEUE_H_
#define CC_TILES_RASTER_TILE_PRIORITY_QUEUE_H_
#include <vector>
#include "base/macros.h"
#include "cc/base/cc_export.h"
#include "cc/layers/picture_layer_impl.h"
#include "cc/tiles/tile_priority.h"
namespace cc {
class PrioritizedTile;
class CC_EXPORT RasterTilePriorityQueue {
public:
enum class Type { ALL, REQUIRED_FOR_ACTIVATION, REQUIRED_FOR_DRAW };
static scoped_ptr<RasterTilePriorityQueue> Create(
const std::vector<PictureLayerImpl*>& active_layers,
const std::vector<PictureLayerImpl*>& pending_layers,
TreePriority tree_priority,
Type type);
virtual ~RasterTilePriorityQueue() {}
virtual bool IsEmpty() const = 0;
virtual const PrioritizedTile& Top() const = 0;
virtual void Pop() = 0;
protected:
RasterTilePriorityQueue() {}
private:
DISALLOW_COPY_AND_ASSIGN(RasterTilePriorityQueue);
};
} // namespace cc
#endif // CC_TILES_RASTER_TILE_PRIORITY_QUEUE_H_
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