// SPDX-License-Identifier: GPL-2.0-or-later

/*!

  @file    cr2image_int.hpp

  @brief   Internal classes to support CR2 image format

  @author  Andreas Huggel (ahu)

           <a href="mailto:ahuggel@gmx.net">ahuggel@gmx.net</a>

  @date    23-Apr-08, ahu: created

 */

#ifndef EXIV2_CR2HEADER_INT_HPP

#define EXIV2_CR2HEADER_INT_HPP

// *****************************************************************************

// included header files

#include "tiffimage_int.hpp"

#include <array>

// *****************************************************************************

// namespace extensions

namespace Exiv2::Internal {

// *****************************************************************************

// class definitions

/// @brief Canon CR2 header structure.

class Cr2Header : public TiffHeaderBase {

 public:

  //! @name Creators

  //@{

  //! Default constructor

  explicit Cr2Header(ByteOrder byteOrder = littleEndian);

  //@}

  //! @name Manipulators

  //@{

  bool read(const byte* pData, size_t size) override;

  //@}

  //! @name Accessors

  //@{

  [[nodiscard]] DataBuf write() const override;

  [[nodiscard]] bool isImageTag(uint16_t tag, IfdId group, const PrimaryGroups& pPrimaryGroups) const override;

  //@}

  //! Return the address of offset2 from the start of the header

  static uint32_t offset2addr() {

    return 12;

  }

 private:

  // DATA

  uint32_t offset2_{0x00000000};                                          //!< Bytes 12-15 from the header

  static constexpr std::array<byte, 4> cr2sig_ = {0x43, 0x52, 0x2, 0x0};  //!< Signature for CR2 type TIFF

};

}  // namespace Exiv2::Internal

#endif  // EXIV2_CR2HEADER_INT_HPP