picture_pile_base.h revision eb525c5499e34cc9c4b825d6d9e75bb07cc06ace 
1// Copyright 2013 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_PICTURE_PILE_BASE_H_
6#define CC_RESOURCES_PICTURE_PILE_BASE_H_
7
8#include <list>
9#include <utility>
10
11#include "base/containers/hash_tables.h"
12#include "base/memory/ref_counted.h"
13#include "cc/base/cc_export.h"
14#include "cc/base/region.h"
15#include "cc/base/tiling_data.h"
16#include "cc/resources/picture.h"
17#include "ui/gfx/size.h"
18
19namespace base {
20class Value;
21}
22
23namespace cc {
24
25class CC_EXPORT PicturePileBase : public base::RefCounted<PicturePileBase> {
26 public:
27  PicturePileBase();
28  explicit PicturePileBase(const PicturePileBase* other);
29  PicturePileBase(const PicturePileBase* other, unsigned thread_index);
30
31  void Resize(gfx::Size size);
32  gfx::Size size() const { return tiling_.total_size(); }
33  void SetMinContentsScale(float min_contents_scale);
34
35  void UpdateRecordedRegion();
36  const Region& recorded_region() const { return recorded_region_; }
37
38  int num_tiles_x() const { return tiling_.num_tiles_x(); }
39  int num_tiles_y() const { return tiling_.num_tiles_y(); }
40  gfx::Rect tile_bounds(int x, int y) const { return tiling_.TileBounds(x, y); }
41  bool HasRecordingAt(int x, int y);
42  bool CanRaster(float contents_scale, gfx::Rect content_rect);
43
44  void SetTileGridSize(gfx::Size tile_grid_size);
45  TilingData& tiling() { return tiling_; }
46
47  scoped_ptr<base::Value> AsValue() const;
48
49 protected:
50  virtual ~PicturePileBase();
51
52  int num_raster_threads() { return num_raster_threads_; }
53  int buffer_pixels() const { return tiling_.border_texels(); }
54  void Clear();
55
56  typedef std::pair<int, int> PictureListMapKey;
57  typedef std::list<scoped_refptr<Picture> > PictureList;
58  typedef base::hash_map<PictureListMapKey, PictureList> PictureListMap;
59
60  // A picture pile is a tiled set of picture lists.  The picture list map
61  // is a map of tile indices to picture lists.
62  PictureListMap picture_list_map_;
63  TilingData tiling_;
64  Region recorded_region_;
65  float min_contents_scale_;
66  SkTileGridPicture::TileGridInfo tile_grid_info_;
67  SkColor background_color_;
68  bool contents_opaque_;
69  int slow_down_raster_scale_factor_for_debug_;
70  bool show_debug_picture_borders_;
71  int num_raster_threads_;
72
73 private:
74  void SetBufferPixels(int buffer_pixels);
75
76  friend class base::RefCounted<PicturePileBase>;
77  DISALLOW_COPY_AND_ASSIGN(PicturePileBase);
78};
79
80}  // namespace cc
81
82#endif  // CC_RESOURCES_PICTURE_PILE_BASE_H_
83