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// Copyright 2013 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_RESOURCES_PICTURE_PILE_BASE_H_
#define CC_RESOURCES_PICTURE_PILE_BASE_H_
#include <list>
#include <utility>
#include "base/containers/hash_tables.h"
#include "base/memory/ref_counted.h"
#include "cc/base/cc_export.h"
#include "cc/base/region.h"
#include "cc/base/tiling_data.h"
#include "cc/resources/picture.h"
#include "ui/gfx/size.h"
namespace base {
class Value;
}
namespace cc {
class CC_EXPORT PicturePileBase : public base::RefCounted<PicturePileBase> {
public:
PicturePileBase();
explicit PicturePileBase(const PicturePileBase* other);
PicturePileBase(const PicturePileBase* other, unsigned thread_index);
void Resize(gfx::Size size);
gfx::Size size() const { return tiling_.total_size(); }
void SetMinContentsScale(float min_contents_scale);
void UpdateRecordedRegion();
const Region& recorded_region() const { return recorded_region_; }
int num_tiles_x() const { return tiling_.num_tiles_x(); }
int num_tiles_y() const { return tiling_.num_tiles_y(); }
gfx::Rect tile_bounds(int x, int y) const { return tiling_.TileBounds(x, y); }
bool HasRecordingAt(int x, int y);
bool CanRaster(float contents_scale, gfx::Rect content_rect);
void SetTileGridSize(gfx::Size tile_grid_size);
TilingData& tiling() { return tiling_; }
scoped_ptr<base::Value> AsValue() const;
protected:
virtual ~PicturePileBase();
int num_raster_threads() { return num_raster_threads_; }
int buffer_pixels() const { return tiling_.border_texels(); }
void Clear();
typedef std::pair<int, int> PictureListMapKey;
typedef std::list<scoped_refptr<Picture> > PictureList;
typedef base::hash_map<PictureListMapKey, PictureList> PictureListMap;
// A picture pile is a tiled set of picture lists. The picture list map
// is a map of tile indices to picture lists.
PictureListMap picture_list_map_;
TilingData tiling_;
Region recorded_region_;
float min_contents_scale_;
SkTileGridPicture::TileGridInfo tile_grid_info_;
SkColor background_color_;
bool contents_opaque_;
int slow_down_raster_scale_factor_for_debug_;
bool show_debug_picture_borders_;
int num_raster_threads_;
private:
void SetBufferPixels(int buffer_pixels);
friend class base::RefCounted<PicturePileBase>;
DISALLOW_COPY_AND_ASSIGN(PicturePileBase);
};
} // namespace cc
#endif // CC_RESOURCES_PICTURE_PILE_BASE_H_
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