itkFFTWRealToComplexConjugateImageFilter.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkFFTWRealToComplexConjugateImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2006/08/29 21:30:32 $
  Version:   $Revision: 1.10 $

  Copyright (c) 2002 Insight Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkFFTWRealToComplexConjugateImageFilter_h
#define __itkFFTWRealToComplexConjugateImageFilter_h

#include "itkFFTRealToComplexConjugateImageFilter.h"
#include "itkFFTWCommon.h"


namespace itk
{
template <class TPixel, unsigned int Dimension = 3>
class ITK_EXPORT FFTWRealToComplexConjugateImageFilter :
    public FFTRealToComplexConjugateImageFilter<TPixel,Dimension>
{
public:
  typedef FFTWRealToComplexConjugateImageFilter Self;
  typedef FFTRealToComplexConjugateImageFilter<TPixel,Dimension> Superclass;
  typedef SmartPointer<Self> Pointer;
  typedef SmartPointer<const Self> constPointer;

  typedef typename Superclass::TInputImageType TInputImageType;
  typedef typename Superclass::TOutputImageType TOutputImageType;

  typedef typename fftw::Proxy<TPixel> FFTWProxyType;

  itkNewMacro(Self);

  itkTypeMacro(FFTWRealToComplexConjugateImageFilter,
               FFTRealToComplexConjugateImageFilter);

  //
  // these should be defined in every FFT filter class
  virtual void GenerateData();  // generates output from input

protected:
  FFTWRealToComplexConjugateImageFilter() : m_PlanComputed(false),
                                            m_LastImageSize(0),
                                            m_InputBuffer(0),
                                            m_OutputBuffer(0)
  {
  }
  ~FFTWRealToComplexConjugateImageFilter()
  {
    if(m_PlanComputed)
      {
      FFTWProxyType::DestroyPlan(this->m_Plan);
      delete [] this->m_InputBuffer;
      delete [] this->m_OutputBuffer;
      }
  }

  virtual bool FullMatrix();
private:
  FFTWRealToComplexConjugateImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
  bool m_PlanComputed;
  typename FFTWProxyType::PlanType m_Plan;
  unsigned int m_LastImageSize;
  TPixel *m_InputBuffer;
  typename FFTWProxyType::ComplexType *m_OutputBuffer;

};
} // namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkFFTWRealToComplexConjugateImageFilter.txx"
#endif

#endif //__itkFFTWRealToComplexConjugateImageFilter_h

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