FFT Class Reference

#include <FFT.h>

List of all members.

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Detailed Description

Provide the basic FFT computations we need.

This class uses FFTW or its own FFT implementation, depending on the compile flags and relative calculated performances of the two.

Supports real -> complex forward and complex -> real inverse DFTs with power-of-two sizes.

Definition at line 15 of file FFT.h.

Public Types
enum	Exception { InvalidSize }
Public Member Functions
	FFT (unsigned int size)
	~FFT ()
void	forward (double *realIn, double *realOut, double *imagOut)
void	inverse (double *realIn, double *imagIn, double *realOut)
void	tune ()
Protected Member Functions
void	basefft (bool inverse, double *ri, double *ii, double *ro, double *io)
Protected Attributes
unsigned int	m_size
int *	m_table
double *	m_spare

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Member Enumeration Documentation

enum FFT::Exception

Enumerator:

InvalidSize

Definition at line 18 of file FFT.h.

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Constructor & Destructor Documentation

FFT::FFT

(

unsigned int

size

)

Definition at line 7 of file FFT.cpp.

References InvalidSize, m_size, m_spare, and m_table.

FFT::~FFT

(

)

Definition at line 42 of file FFT.cpp.

References m_spare, and m_table.

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Member Function Documentation

void FFT::forward	(	double *	realIn,
		double *	realOut,
		double *	imagOut
	)

Definition at line 90 of file FFT.cpp.

References basefft().

void FFT::inverse	(	double *	realIn,
		double *	imagIn,
		double *	realOut
	)

Definition at line 96 of file FFT.cpp.

References basefft(), and m_spare.

void FFT::tune

(

)

Definition at line 49 of file FFT.cpp.

References basefft(), and m_size.

void FFT::basefft	(	bool	inverse,
		double *	ri,
		double *	ii,
		double *	ro,
		double *	io
	)			[protected]

Definition at line 102 of file FFT.cpp.

References m_size.

Referenced by forward(), inverse(), and tune().

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Member Data Documentation

unsigned int FFT::m_size [protected]

Definition at line 29 of file FFT.h.

Referenced by basefft(), FFT(), and tune().

int* FFT::m_table [protected]

Definition at line 30 of file FFT.h.

Referenced by FFT(), and ~FFT().

double* FFT::m_spare [protected]

Definition at line 31 of file FFT.h.

Referenced by FFT(), inverse(), and ~FFT().

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The documentation for this class was generated from the following files:

• FFT.h
• FFT.cpp

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