view Source/FFT.h @ 1:e86e9c111b29

Updates stuff that potentially fixes the memory leak and also makes it work on Windows and Linux (Need to test). Still have to fix fftw include for linux in Jucer.

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

    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