view data/fft/FFTapi.h @ 249:d3ac9f953ebf

* Fix #1672407 confused by plugin-named files in cwd (or home?)
* Fix #1491848 crash when loading new file while transform plugin runs
* Fix #1502287 Background remains black after spectrogram layer deleted
* Fix #1604477 Replacing the main audio file silences secondary audio file
* Fix failure to initialise property box layout to last preference on startup
* Fix resample/wrong-rate display in Pane, ensure that right rate is chosen
  if all current models have an acceptable rate even if previous main model
  had a different one
* Fix "global zoom" broken in previous commit
* Some fixes to spectrogram cache area updating (makes spectrogram appear
  more quickly, previously it had a tendency to refresh with empty space)
* Fixes to colour 3d plot normalization

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam and QMUL.
    
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _FFT_API_H_
#define _FFT_API_H_

#ifdef HAVE_FFTW3F

#include <fftw3.h>

#define fftf_complex fftwf_complex
#define fftf_malloc fftwf_malloc
#define fftf_free fftwf_free
#define fftf_plan fftwf_plan
#define fftf_plan_dft_r2c_1d fftwf_plan_dft_r2c_1d
#define fftf_plan_dft_c2r_1d fftwf_plan_dft_c2r_1d
#define fftf_execute fftwf_execute
#define fftf_destroy_plan fftwf_destroy_plan

#else

// Provide a fallback FFT implementation if FFTW3f is not available.

typedef float fftf_complex[2];
#define fftf_malloc malloc
#define fftf_free free

struct fftf_plan_;
typedef fftf_plan_ *fftf_plan;

fftf_plan fftf_plan_dft_r2c_1d(int n, float *in, fftf_complex *out, unsigned);
fftf_plan fftf_plan_dft_c2r_1d(int n, fftf_complex *in, float *out, unsigned);
void fftf_execute(const fftf_plan p);
void fftf_destroy_plan(fftf_plan p);

#define FFTW_ESTIMATE 0

#endif

#endif