/*
    RawSpeed - RAW file decoder.

    Copyright (C) 2009-2014 Klaus Post
    Copyright (C) 2014 Pedro Côrte-Real

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/

#pragma once

#include "adt/Optional.h"
#include "common/RawImage.h"
#include "decoders/RawDecoder.h"
#include "io/Buffer.h"
#include "tiff/TiffIFD.h"
#include <array>
#include <cmath>
#include <cstdint>

namespace rawspeed {

class CameraMetaData;

class MrwDecoder final : public RawDecoder {
  TiffRootIFDOwner rootIFD;

  uint32_t raw_width = 0;
  uint32_t raw_height = 0;
  Buffer imageData;
  uint32_t bpp = 0;
  uint32_t packed = 0;
  Optional<std::array<float, 4>> wb_coeffs;

public:
  explicit MrwDecoder(Buffer file);
  RawImage decodeRawInternal() override;
  void checkSupportInternal(const CameraMetaData* meta) override;
  void decodeMetaDataInternal(const CameraMetaData* meta) override;
  static int isMRW(Buffer input);

private:
  [[nodiscard]] int getDecoderVersion() const override { return 0; }
  void parseHeader();
};

} // namespace rawspeed
