Chris@226: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@226: 
Chris@226: /*
Chris@226:     Sonic Visualiser
Chris@226:     An audio file viewer and annotation editor.
Chris@226:     Centre for Digital Music, Queen Mary, University of London.
Chris@226:     This file copyright 2006 Chris Cannam and QMUL.
Chris@226:     
Chris@226:     This program is free software; you can redistribute it and/or
Chris@226:     modify it under the terms of the GNU General Public License as
Chris@226:     published by the Free Software Foundation; either version 2 of the
Chris@226:     License, or (at your option) any later version.  See the file
Chris@226:     COPYING included with this distribution for more information.
Chris@226: */
Chris@226: 
Chris@226: #ifndef _FFT_API_H_
Chris@226: #define _FFT_API_H_
Chris@226: 
Chris@226: #ifdef HAVE_FFTW3F
Chris@226: 
Chris@226: #include <fftw3.h>
Chris@226: 
Chris@226: #define fftf_complex fftwf_complex
Chris@226: #define fftf_malloc fftwf_malloc
Chris@226: #define fftf_free fftwf_free
Chris@226: #define fftf_plan fftwf_plan
Chris@226: #define fftf_plan_dft_r2c_1d fftwf_plan_dft_r2c_1d
Chris@226: #define fftf_plan_dft_c2r_1d fftwf_plan_dft_c2r_1d
Chris@226: #define fftf_execute fftwf_execute
Chris@226: #define fftf_destroy_plan fftwf_destroy_plan
Chris@226: 
Chris@226: #else
Chris@226: 
Chris@226: // Provide a fallback FFT implementation if FFTW3f is not available.
Chris@226: 
Chris@226: typedef float fftf_complex[2];
Chris@226: #define fftf_malloc malloc
Chris@226: #define fftf_free free
Chris@226: 
Chris@226: struct fftf_plan_;
Chris@226: typedef fftf_plan_ *fftf_plan;
Chris@226: 
Chris@226: fftf_plan fftf_plan_dft_r2c_1d(int n, float *in, fftf_complex *out, unsigned);
Chris@226: fftf_plan fftf_plan_dft_c2r_1d(int n, fftf_complex *in, float *out, unsigned);
Chris@226: void fftf_execute(const fftf_plan p);
Chris@226: void fftf_destroy_plan(fftf_plan p);
Chris@226: 
Chris@226: #define FFTW_ESTIMATE 0
Chris@293: #define FFTW_MEASURE 0
Chris@226: 
Chris@226: #endif
Chris@226: 
Chris@226: #endif
Chris@226: