chromium/src/third_party/blink/renderer/platform/graphics/picture_snapshot.h

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
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 *     * Redistributions of source code must retain the above copyright
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 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PICTURE_SNAPSHOT_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PICTURE_SNAPSHOT_H_

#include <memory>

#include "base/macros.h"
#include "third_party/blink/renderer/platform/graphics/graphics_context.h"
#include "third_party/blink/renderer/platform/json/json_values.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/blink/renderer/platform/wtf/ref_counted.h"

#include "third_party/skia/include/core/SkPicture.h"
#include "third_party/skia/include/core/SkPictureRecorder.h"
#include "third_party/skia/include/core/SkRefCnt.h"

namespace blink {

class FloatRect;

class PLATFORM_EXPORT PictureSnapshot : public RefCounted<PictureSnapshot> {
  USING_FAST_MALLOC(PictureSnapshot);

 public:
  struct TilePictureStream : RefCounted<TilePictureStream> {
    FloatPoint layer_offset;
    sk_sp<SkPicture> picture;
  };

  static scoped_refptr<PictureSnapshot> Load(
      const Vector<scoped_refptr<TilePictureStream>>&);

  PictureSnapshot(sk_sp<const SkPicture>);

  Vector<uint8_t> Replay(unsigned from_step = 0,
                         unsigned to_step = 0,
                         double scale = 1.0) const;
  Vector<Vector<base::TimeDelta>> Profile(unsigned min_iterations,
                                          base::TimeDelta min_duration,
                                          const FloatRect* clip_rect) const;
  std::unique_ptr<JSONArray> SnapshotCommandLog() const;
  bool IsEmpty() const;

 private:
  std::unique_ptr<SkBitmap> CreateBitmap() const;

  sk_sp<const SkPicture> picture_;

  DISALLOW_COPY_AND_ASSIGN(PictureSnapshot);
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PICTURE_SNAPSHOT_H_