view Source/FFT.h @ 7:c6f38cba266d

Cleaned up redundant code

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

    FFT.h
    Created: 11 Aug 2014 11:18:53am
    Author:  mickael.legoff

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

#ifndef FFT_H_INCLUDED
#define FFT_H_INCLUDED

#include "FFTW.h"


template < typename FFTImpl >
class FastFourierTransform
{

public:
  FastFourierTransform();
  FastFourierTransform( unsigned fftLength )
  : m_fft_impl( fftLength )
  {

	  m_realPart = new float[fftLength];
	  m_imagPart = new float[fftLength];

	  memset(m_realPart, 0, (fftLength)*sizeof(float));
	  memset(m_imagPart, 0, (fftLength)*sizeof(float));
  }

  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  ~FastFourierTransform()
  {
	  if(m_realPart != NULL)
	  {		
		delete[] m_realPart;
		m_realPart = nullptr;
	  }

	  if(m_imagPart != NULL)
	  {
		delete[] m_imagPart;
		m_imagPart = nullptr;
	  }
  }

  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  void   process( const float* input )   { m_fft_impl.process( input , m_realPart , m_imagPart ); }

  // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  const float *  realPart()      { return m_realPart; }
  const float *  imagPart()      { return m_imagPart; }

private:

  float*  m_realPart;
  float*  m_imagPart;

  FFTImpl   m_fft_impl;

};


typedef   FastFourierTransform<FFTW>  FFT;


#endif  // FFT_H_INCLUDED