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/*
ZynAddSubFX - a software synthesizer
FFTwrapper.h - A wrapper for Fast Fourier Transforms
Copyright (C) 2002-2005 Nasca Octavian Paul
Author: Nasca Octavian Paul
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License
as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License (version 2) for more details.
You should have received a copy of the GNU General Public License (version 2)
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef FFT_WRAPPER_H
#define FFT_WRAPPER_H
#include "../globals.h"
#ifdef FFTW_VERSION_2
#include <fftw.h>
/* If you got error messages about rfftw.h, replace the next include line with "#include <srfftw.h>"
or with "#include <drfftw.h> (if one doesn't work try the other). It may be necessary to replace
the <fftw.h> with <dfftw.h> or <sfftw.h>. If the neither one doesn't work,
please install latest version of fftw(recomanded from the sources) from www.fftw.org.
If you'll install fftw3 you need to change the Makefile.inc
Hope all goes right." */
#include <rfftw.h>
#else
#include <fftw3.h>
#define fftw_real double
#define rfftw_plan fftw_plan
#endif
class FFTwrapper{
public:
FFTwrapper(int fftsize_);
~FFTwrapper();
void smps2freqs(REALTYPE *smps,FFTFREQS freqs);
void freqs2smps(FFTFREQS freqs,REALTYPE *smps);
private:
int fftsize;
fftw_real *tmpfftdata1,*tmpfftdata2;
rfftw_plan planfftw,planfftw_inv;
};
#endif
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