itkFFTWComplexToComplexImageFilter.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 __itkFFTWComplexToComplexImageFilter_h
#define __itkFFTWComplexToComplexImageFilter_h

#include "itkFFTComplexToComplexImageFilter.h"
#include "itkFFTWCommon.h"


namespace itk
{
template< typename TImage >
class FFTWComplexToComplexImageFilter:
  public FFTComplexToComplexImageFilter< TImage >
{
public:
  typedef FFTWComplexToComplexImageFilter                      Self;
  typedef FFTComplexToComplexImageFilter< TImage >             Superclass;
  typedef SmartPointer< Self >                                 Pointer;
  typedef SmartPointer< const Self >                           ConstPointer;

  typedef TImage                               ImageType;
  typedef typename ImageType::PixelType        PixelType;
  typedef typename Superclass::InputImageType  InputImageType;
  typedef typename Superclass::OutputImageType OutputImageType;
  typedef typename OutputImageType::RegionType OutputImageRegionType;

  //
  // the proxy type is a wrapper for the fftw API
  // since the proxy is only defined over double and float,
  // trying to use any other pixel type is inoperative, as
  // is trying to use double if only the float FFTW version is
  // configured in, or float if only double is configured.
  //
  typedef typename fftw::Proxy< typename PixelType::value_type > FFTWProxyType;

  itkNewMacro(Self);

  itkTypeMacro(FFTWComplexToComplexImageFilter,
               FFTComplexToComplexImageFilter);

  itkStaticConstMacro(ImageDimension, unsigned int,
                      ImageType::ImageDimension);

  typedef typename ImageType::SizeType ImageSizeType;

  //
  // these should be defined in every FFT filter class
  virtual bool FullMatrix();

  virtual void SetPlanRigor( const int & value )
  {
    // use that method to check the value
    FFTWGlobalConfiguration::GetPlanRigorName( value );
    if( m_PlanRigor != value )
      {
      m_PlanRigor = value;
      this->Modified();
      }
  }
  itkGetConstReferenceMacro( PlanRigor, int );
  void SetPlanRigor( const std::string & name )
  {
    this->SetPlanRigor( FFTWGlobalConfiguration::GetPlanRigorValue( name ) );
  }

protected:
  FFTWComplexToComplexImageFilter()
    {
    m_PlanRigor = FFTWGlobalConfiguration::GetPlanRigor();
    }
  virtual ~FFTWComplexToComplexImageFilter()
    {
    }

  virtual void UpdateOutputData(DataObject *output);

  virtual void BeforeThreadedGenerateData();
  void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread, ThreadIdType threadId );

  void PrintSelf(std::ostream & os, Indent indent) const;

private:
  FFTWComplexToComplexImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  bool m_CanUseDestructiveAlgorithm;

  int m_PlanRigor;

};


} // namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkFFTWComplexToComplexImageFilter.hxx"
#endif

#endif //__itkFFTWComplexToComplexImageFilter_h