QRealComplexFFTW3.hh

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#ifndef __Q_REAL_COMPLEX_FFTW3_
#define __Q_REAL_COMPLEX_FFTW3_
 
#include "QFFT.hh"
#include "QFFTW3.hh"
 
// Portability Issue: If the environment cannot find the FFTW3
// headers, QRealComplexFFTW3 just becomes a wrapper for the
// QRealComplexFFTGSL class which uses gsl.
#if defined(_HAVE_FFTW3_) && !defined(__CINT__) && !defined(__CLING__)
#include <fftw3.h>
#endif
 
Q_BEGIN_NAMESPACE
 
class QVectorC;
 
class QRealComplexFFTW3: public QFFT, virtual public QFFTW3 {
 
public: 
  QRealComplexFFTW3(const size_t size);
  QRealComplexFFTW3();
  virtual ~QRealComplexFFTW3();
  virtual int TransformToFreq(const QVector& data, QVectorC& FFT,
                              bool compress=false); 
  virtual int TransformFromFreq(const QVectorC& FT, QVector& spectrum,
                                bool compress=false); 
  
  
  virtual void SetWindowType(WindowType wt, int coherent = 0);
 
protected:
  
  virtual bool CreatePlan(bool Forward);
  virtual bool ClearCache(bool clearMem=true);
 
  virtual int Transform(const QVector& data, QVector& result); 
 
  bool CheckPlanCompatible(const QVector& data,const QVector& result) const
  { return false; }
 
  bool Resize(size_t s);
  
 
protected:
 
  bool fSizeLock;
 
  const int fStride;
  size_t fAllocatedSize;
 
#if defined(_HAVE_FFTW3_) && !defined(__CINT__) && !defined(__CLING__)
  fftw_plan fFFTW_Forward_Plan;
  fftw_plan fFFTW_Backward_Plan;
 
  fftw_complex *fComplexData;
 
#endif
 
  ClassDef(QRealComplexFFTW3,0);
};
Q_END_NAMESPACE
 
 
#endif