itkDCMTKImageIO.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef itkDCMTKImageIO_h
#define itkDCMTKImageIO_h
#include "ITKIODCMTKExport.h"
 
 
#include <fstream>
#include <cstdio>
#include "itkImageIOBase.h"
 
class DicomImage;
 
namespace itk
{
class DCMTKImageIOEnums
{
public:
  enum class LogLevel : uint8_t
  {
    TRACE_LOG_LEVEL = 0,
    DEBUG_LOG_LEVEL,
    INFO_LOG_LEVEL,
    WARN_LOG_LEVEL,
    ERROR_LOG_LEVEL,
    FATAL_LOG_LEVEL,
    OFF_LOG_LEVEL,
  };
};
// Define how to print enumeration
extern ITKIODCMTK_EXPORT std::ostream &
                         operator<<(std::ostream & out, const DCMTKImageIOEnums::LogLevel value);
 
class ITKIODCMTK_EXPORT DCMTKImageIO : public ImageIOBase
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(DCMTKImageIO);
 
  using Self = DCMTKImageIO;
  using Superclass = ImageIOBase;
  using Pointer = SmartPointer<Self>;
 
  itkNewMacro(Self);
 
  itkTypeMacro(DCMTKImageIO, ImageIOBase);
 
  using LogLevelEnum = DCMTKImageIOEnums::LogLevel;
#if !defined(ITK_LEGACY_REMOVE)
 
  static constexpr LogLevelEnum TRACE_LOG_LEVEL = LogLevelEnum::TRACE_LOG_LEVEL;
  static constexpr LogLevelEnum DEBUG_LOG_LEVEL = LogLevelEnum::DEBUG_LOG_LEVEL;
  static constexpr LogLevelEnum INFO_LOG_LEVEL = LogLevelEnum::INFO_LOG_LEVEL;
  static constexpr LogLevelEnum WARN_LOG_LEVEL = LogLevelEnum::WARN_LOG_LEVEL;
  static constexpr LogLevelEnum ERROR_LOG_LEVEL = LogLevelEnum::ERROR_LOG_LEVEL;
  static constexpr LogLevelEnum FATAL_LOG_LEVEL = LogLevelEnum::FATAL_LOG_LEVEL;
  static constexpr LogLevelEnum OFF_LOG_LEVEL = LogLevelEnum::OFF_LOG_LEVEL;
#endif
 
  void
  SetDicomImagePointer(DicomImage * UserProvided)
  {
    m_DImage = UserProvided;
    m_DicomImageSetByUser = true;
  }
 
  /*-------- This part of the interfaces deals with reading data. ----- */
 
  bool
  CanReadFile(const char *) override;
 
  void
  ReadImageInformation() override;
 
  void
  Read(void * buffer) override;
 
  /*-------- This part of the interfaces deals with writing data. ----- */
 
  bool
  CanWriteFile(const char *) override;
 
  void
  WriteImageInformation() override;
 
  void
  Write(const void * buffer) override;
 
  void
  SetLogLevel(LogLevelEnum level);
 
  LogLevelEnum
  GetLogLevel() const;
 
  DCMTKImageIO();
  ~DCMTKImageIO() override;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
private:
  void
  OpenDicomImage();
 
  void
  ReorderRGBValues(void * buffer, const void * data, size_t count, unsigned int voxel_size);
 
  template <typename T>
  void
  ReorderRGBValues(void * buffer, const void * data, size_t count, unsigned int voxel_size)
  {
    auto *        output_buffer = static_cast<T *>(buffer);
    const auto ** input_buffer = static_cast<const T **>(const_cast<void *>(data));
    for (size_t pos = 0; pos < count; ++pos)
    {
      for (unsigned int color = 0; color < voxel_size; ++color)
      {
        *(output_buffer++) = input_buffer[color][pos];
      }
    }
  }
 
  /*----- internal helpers --------------------------------------------*/
  bool m_UseJPEGCodec;
  bool m_UseJPLSCodec;
  bool m_UseRLECodec;
 
  DicomImage * m_DImage;
 
  bool m_DicomImageSetByUser;
 
  double      m_RescaleSlope;
  double      m_RescaleIntercept;
  std::string m_LastFileName;
};
 
// Define how to print enumeration
extern ITKCommon_EXPORT std::ostream &
                        operator<<(std::ostream & out, DCMTKImageIO::LogLevelEnum value);
 
} // end namespace itk
 
#endif // itkDCMTKImageIO_h