lbajardsilogic@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
lbajardsilogic@0: 
lbajardsilogic@0: /*
lbajardsilogic@0:     Sonic Visualiser
lbajardsilogic@0:     An audio file viewer and annotation editor.
lbajardsilogic@0:     Centre for Digital Music, Queen Mary, University of London.
lbajardsilogic@0:     This file copyright 2006 Chris Cannam and QMUL.
lbajardsilogic@0:     
lbajardsilogic@0:     This program is free software; you can redistribute it and/or
lbajardsilogic@0:     modify it under the terms of the GNU General Public License as
lbajardsilogic@0:     published by the Free Software Foundation; either version 2 of the
lbajardsilogic@0:     License, or (at your option) any later version.  See the file
lbajardsilogic@0:     COPYING included with this distribution for more information.
lbajardsilogic@0: */
lbajardsilogic@0: 
lbajardsilogic@0: #ifndef _FFT_API_H_
lbajardsilogic@0: #define _FFT_API_H_
lbajardsilogic@0: 
lbajardsilogic@0: #ifdef HAVE_FFTW3F
lbajardsilogic@0: 
lbajardsilogic@0: #include <fftw3.h>
lbajardsilogic@0: 
lbajardsilogic@0: #define fftf_complex fftwf_complex
lbajardsilogic@0: #define fftf_malloc fftwf_malloc
lbajardsilogic@0: #define fftf_free fftwf_free
lbajardsilogic@0: #define fftf_plan fftwf_plan
lbajardsilogic@0: #define fftf_plan_dft_r2c_1d fftwf_plan_dft_r2c_1d
lbajardsilogic@0: #define fftf_plan_dft_c2r_1d fftwf_plan_dft_c2r_1d
lbajardsilogic@0: #define fftf_execute fftwf_execute
lbajardsilogic@0: #define fftf_destroy_plan fftwf_destroy_plan
lbajardsilogic@0: 
lbajardsilogic@0: #else
lbajardsilogic@0: 
lbajardsilogic@0: // Provide a fallback FFT implementation if FFTW3f is not available.
lbajardsilogic@0: 
lbajardsilogic@0: typedef float fftf_complex[2];
lbajardsilogic@0: #define fftf_malloc malloc
lbajardsilogic@0: #define fftf_free free
lbajardsilogic@0: 
lbajardsilogic@0: struct fftf_plan_;
lbajardsilogic@0: typedef fftf_plan_ *fftf_plan;
lbajardsilogic@0: 
lbajardsilogic@0: fftf_plan fftf_plan_dft_r2c_1d(int n, float *in, fftf_complex *out, unsigned);
lbajardsilogic@0: fftf_plan fftf_plan_dft_c2r_1d(int n, fftf_complex *in, float *out, unsigned);
lbajardsilogic@0: void fftf_execute(const fftf_plan p);
lbajardsilogic@0: void fftf_destroy_plan(fftf_plan p);
lbajardsilogic@0: 
lbajardsilogic@0: #define FFTW_ESTIMATE 0
lbajardsilogic@0: 
lbajardsilogic@0: #endif
lbajardsilogic@0: 
lbajardsilogic@0: #endif
lbajardsilogic@0: