fft_N.c File Reference

#include <math.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "fft_N.h"

Go to the source code of this file.

Functions
static size_t	reverse_bits (size_t x, int n)
static void *	memdup (const void *src, size_t n)
void	Fft_setup (size_t n)
bool	Fft_transform (CFTTYPE real[], CFTTYPE imag[], size_t n)
bool	Fft_inverseTransform (CFTTYPE real[], CFTTYPE imag[], size_t n)
bool	Fft_transformRadix2 (CFTTYPE real[], CFTTYPE imag[], size_t n)

Variables
static CFTTYPE *	cos_table = 0
static CFTTYPE *	sin_table = 0
static unsigned	len = 0
static size_t	size = 0

Function Documentation

static size_t reverse_bits ( size_t  x, int  n  )

static

Definition at line 137 of file fft_N.c.

Referenced by Fft_transformRadix2().

static void * memdup ( const void *  src, size_t  n  )

static

Definition at line 144 of file fft_N.c.

void Fft_setup

(

size_t

n

)

Definition at line 42 of file fft_N.c.

References CFTTYPE, cos_table, len, sin_table, and size.

Referenced by csl::Convolver::checkBuffers().

bool Fft_transform	(	CFTTYPE	real[],
		CFTTYPE	imag[],
		size_t	n
	)

Definition at line 72 of file fft_N.c.

References Fft_transformRadix2(), and len.

Referenced by Fft_inverseTransform(), csl::Convolver::nextBuffer(), and csl::Convolver::setIRFile().

bool Fft_inverseTransform	(	CFTTYPE	real[],
		CFTTYPE	imag[],
		size_t	n
	)

Definition at line 87 of file fft_N.c.

References Fft_transform().

Referenced by csl::Convolver::nextBuffer().

bool Fft_transformRadix2	(	CFTTYPE	real[],
		CFTTYPE	imag[],
		size_t	n
	)

Definition at line 91 of file fft_N.c.

References CFTTYPE, cos_table, reverse_bits(), sin_table, and size.

Referenced by Fft_transform().

Variable Documentation

CFTTYPE* cos_table = 0

static

Definition at line 37 of file fft_N.c.

Referenced by Fft_setup(), and Fft_transformRadix2().

CFTTYPE* sin_table = 0

static

Definition at line 38 of file fft_N.c.

Referenced by Fft_setup(), and Fft_transformRadix2().

unsigned len = 0

static

Definition at line 39 of file fft_N.c.

Referenced by csl::HRTFDatabase::convertDB(), csl::MIDIIO::dumpDevices(), Fft_setup(), Fft_transform(), load_filter_data(), csl::HRTFDatabase::loadFromFile(), csl::CGestalt::storeToInitFile(), test_convolution_files(), and csl::vlogMsg().

size_t size = 0

static

Definition at line 40 of file fft_N.c.

Referenced by csl::HRTFDatabase::convertDB(), csl::HRTFDatabase::dump(), csl::Envelope::Envelope(), Fft_setup(), Fft_transformRadix2(), csl::Comb::setBuffer(), csl::FAllpass::setBuffer(), csl::HRTFDatabase::size(), and csl::SpeakerSet::SpeakerSet().