itkMINCImageIO.h

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/*=========================================================================
 *
 *  Copyright Insight Software 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
 *
 *         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 itkMINCImageIO_h
#define itkMINCImageIO_h

#include "itkImageIOBase.h"

#include "itkMatrix.h"

#include <itk_minc2.h>

#include "ITKIOMINCExport.h"

namespace itk
{
class ITKIOMINC_EXPORT MINCImageIO : public ImageIOBase
{
public:
  typedef MINCImageIO           Self;
  typedef ImageIOBase           Superclass;
  typedef SmartPointer< Self >  Pointer;
  typedef Matrix< float, 3, 3 > MatrixType;

  itkNewMacro(Self);

  itkTypeMacro(MINCImageIO, Superclass);

  virtual bool SupportsDimension(unsigned long dim) ITK_OVERRIDE
  {
    return dim<4;
  }

  itkSetMacro(CompressionLevel, int);
  itkGetConstMacro(CompressionLevel, int);

  /*-------- This part of the interface deals with reading data. ------ */

  virtual bool CanReadFile(const char *) ITK_OVERRIDE;

  virtual void ReadImageInformation() ITK_OVERRIDE;

  virtual void Read(void *buffer) ITK_OVERRIDE;

  /*-------- This part of the interfaces deals with writing data. ----- */

  virtual bool CanWriteFile(const char *) ITK_OVERRIDE;

  virtual void WriteImageInformation() ITK_OVERRIDE;

  virtual void Write(const void *buffer) ITK_OVERRIDE;

protected:
  MINCImageIO();
  ~MINCImageIO();
  void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;

  void WriteSlice(std::string & fileName, const void *buffer);

  int  m_NDims; /*Number of dimensions*/

  // dimension size and start and step, in FILE ORDER!

  char         **m_DimensionName;
  misize_t      *m_DimensionSize;
  double        *m_DimensionStart;
  double        *m_DimensionStep;
  int            m_DimensionIndices[5];
  midimhandle_t *m_MincFileDims;
  midimhandle_t *m_MincApparentDims;
  mitype_t       m_Volume_type;
  miclass_t      m_Volume_class;
  int            m_CompressionLevel;

  // MINC2 volume handle , currently opened
  mihandle_t     m_Volume;

  MatrixType     m_DirectionCosines;
  // complex type images, composed of complex numbers
  //int m_Complex;

  // will assign m_NDims and allocate all internal buffers to hold the
  // information
  void AllocateDimensions(int nDims);

  // cleanup internal buffers
  void CleanupDimensions();

  // close existing volume, cleanup internal structures
  void CloseVolume();

private:
  MINCImageIO(const Self &) ITK_DELETE_FUNCTION;
  void operator=(const Self &) ITK_DELETE_FUNCTION;

};
} // end namespace itk

#endif // itkMINCImageIO_h