decompressed_image.h

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// Copyright 2013 The Flutter 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 FLUTTER_IMPELLER_PLAYGROUND_IMAGE_DECOMPRESSED_IMAGE_H_
#define FLUTTER_IMPELLER_PLAYGROUND_IMAGE_DECOMPRESSED_IMAGE_H_
 
#include <memory>
#include <optional>
 
#include "flutter/fml/macros.h"
#include "flutter/fml/mapping.h"
#include "impeller/geometry/size.h"
 
namespace impeller {
 
class DecompressedImage {
 public:
  enum class Format {
    kInvalid,
    kGrey,
    kGreyAlpha,
    kRGB,
    kRGBA,
  };
 
  DecompressedImage();
 
  DecompressedImage(ISize size,
                    Format format,
                    std::shared_ptr<const fml::Mapping> allocation);
 
  ~DecompressedImage();
 
  const ISize& GetSize() const;
 
  bool IsValid() const;
 
  Format GetFormat() const;
 
  const std::shared_ptr<const fml::Mapping>& GetAllocation() const;
 
  DecompressedImage ConvertToRGBA() const;
 
 private:
  ISize size_;
  Format format_ = Format::kInvalid;
  std::shared_ptr<const fml::Mapping> allocation_;
  bool is_valid_ = false;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_PLAYGROUND_IMAGE_DECOMPRESSED_IMAGE_H_