rtkHncImageIO.h

/*=========================================================================
 *
 *  Copyright RTK Consortium
 *
 *  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
 *
 *         https://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 rtkHncImageIO_h
#define rtkHncImageIO_h

// itk include
#include <itkImageIOBase.h>
#include "itksys/SystemTools.hxx"

#if defined(_MSC_VER) && (_MSC_VER < 1600)
// SR: taken from
//#include "msinttypes/stdint.h"
#else
#  include <cstdint>
#endif

#include "RTKExport.h"
#include "rtkMacro.h"

namespace rtk
{

/** \class HncImageIO
 *
 * Reads Hnc files (file format used by Varian for Obi raw data).
 *
 * \author Simon Rit
 *
 * \ingroup RTK IOFilters
 */
class RTK_EXPORT HncImageIO : public itk::ImageIOBase
{
public:
  /** Standard class type alias. */
  using Self = HncImageIO;
  using Superclass = itk::ImageIOBase;
  using Pointer = itk::SmartPointer<Self>;
  using PixelType = unsigned short int;

  typedef struct hnc_header
  {
    char         sFileType[32];
    unsigned int FileLength;
    char         sChecksumSpec[4];
    unsigned int nCheckSum;
    char         sCreationDate[8];
    char         sCreationTime[8];
    char         sPatientID[16];
    unsigned int nPatientSer;
    char         sSeriesID[16];
    unsigned int nSeriesSer;
    char         sSliceID[16];
    unsigned int nSliceSer;
    unsigned int SizeX;
    unsigned int SizeY;
    double       dSliceZPos;
    char         sModality[16];
    unsigned int nWindow;
    unsigned int nLevel;
    unsigned int nPixelOffset;
    char         sImageType[4];
    double       dGantryRtn;
    double       dSAD;
    double       dSFD;
    double       dCollX1;
    double       dCollX2;
    double       dCollY1;
    double       dCollY2;
    double       dCollRtn;
    double       dFieldX;
    double       dFieldY;
    double       dBladeX1;
    double       dBladeX2;
    double       dBladeY1;
    double       dBladeY2;
    double       dIDUPosLng;
    double       dIDUPosLat;
    double       dIDUPosVrt;
    double       dIDUPosRtn;
    double       dPatientSupportAngle;
    double       dTableTopEccentricAngle;
    double       dCouchVrt;
    double       dCouchLng;
    double       dCouchLat;
    double       dIDUResolutionX;
    double       dIDUResolutionY;
    double       dImageResolutionX;
    double       dImageResolutionY;
    double       dEnergy;
    double       dDoseRate;
    double       dXRayKV;
    double       dXRayMA;
    double       dMetersetExposure;
    double       dAcqAdjustment;
    double       dCTProjectionAngle;
    double       dCTNormChamber;
    double       dGatingTimeTag;
    double       dGating4DInfoX;
    double       dGating4DInfoY;
    double       dGating4DInfoZ;
    double       dGating4DInfoTime;
  } Hnc_header;

  HncImageIO()
    : Superclass()
  {}

  /** Method for creation through the object factory. */
  itkNewMacro(Self);

  /** Run-time type information (and related methods). */
#ifdef itkOverrideGetNameOfClassMacro
  itkOverrideGetNameOfClassMacro(HncImageIO);
#else
  itkTypeMacro(HncImageIO, itk::ImageIOBase);
#endif

  /*-------- This part of the interface deals with reading data. ------ */
  void
  ReadImageInformation() override;

  bool
  CanReadFile(const char * FileNameToRead) override;

  void
  Read(void * buffer) override;

  /*-------- This part of the interfaces deals with writing data. ----- */
  virtual void
  WriteImageInformation(bool /*keepOfStream*/)
  {}

  void
  WriteImageInformation() override
  {
    WriteImageInformation(false);
  }

  bool
  CanWriteFile(const char * filename) override;

  void
  Write(const void * buffer) override;

}; // end class HncImageIO

} // namespace rtk

#endif /* end #define rtkHncImageIO_h */