mirror of
https://github.com/cookiengineer/audacity
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99 lines
4.5 KiB
C
99 lines
4.5 KiB
C
/*
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* Copyright (c) 1997-1999 Massachusetts Institute of Technology
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/* rfftw.h -- system-wide definitions for rfftw */
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#ifndef RFFTW_H
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#define RFFTW_H
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#include <fftw.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/****************************************************************************/
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#define RFFTW_V2
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typedef fftw_plan rfftw_plan;
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typedef fftwnd_plan rfftwnd_plan;
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#define FFTW_REAL_TO_COMPLEX FFTW_FORWARD
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#define FFTW_COMPLEX_TO_REAL FFTW_BACKWARD
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extern void rfftw(rfftw_plan plan, int howmany, fftw_real *in, int istride,
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int idist, fftw_real *out, int ostride, int odist);
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extern void rfftw_one(rfftw_plan plan, fftw_real *in, fftw_real *out);
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extern rfftw_plan rfftw_create_plan_specific(int n, fftw_direction dir,
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int flags,
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fftw_real *in, int istride,
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fftw_real *out, int ostride);
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extern rfftw_plan rfftw_create_plan(int n, fftw_direction dir, int flags);
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extern void rfftw_destroy_plan(rfftw_plan plan);
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extern void rfftw_fprint_plan(FILE *f, rfftw_plan p);
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extern void rfftw_print_plan(rfftw_plan p);
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extern void rfftw_executor_simple(int n, fftw_real *in,
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fftw_real *out,
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fftw_plan_node *p,
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int istride,
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int ostride);
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extern rfftwnd_plan rfftwnd_create_plan_specific(int rank, const int *n,
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fftw_direction dir, int flags,
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fftw_real *in, int istride,
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fftw_real *out, int ostride);
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extern rfftwnd_plan rfftw2d_create_plan_specific(int nx, int ny,
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fftw_direction dir, int flags,
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fftw_real *in, int istride,
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fftw_real *out, int ostride);
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extern rfftwnd_plan rfftw3d_create_plan_specific(int nx, int ny, int nz,
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fftw_direction dir, int flags,
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fftw_real *in, int istride,
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fftw_real *out, int ostride);
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extern rfftwnd_plan rfftwnd_create_plan(int rank, const int *n,
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fftw_direction dir, int flags);
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extern rfftwnd_plan rfftw2d_create_plan(int nx, int ny,
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fftw_direction dir, int flags);
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extern rfftwnd_plan rfftw3d_create_plan(int nx, int ny, int nz,
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fftw_direction dir, int flags);
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extern void rfftwnd_destroy_plan(rfftwnd_plan plan);
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extern void rfftwnd_fprint_plan(FILE *f, rfftwnd_plan plan);
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extern void rfftwnd_print_plan(rfftwnd_plan plan);
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extern void rfftwnd_real_to_complex(rfftwnd_plan p, int howmany,
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fftw_real *in, int istride, int idist,
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fftw_complex *out, int ostride, int odist);
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extern void rfftwnd_complex_to_real(rfftwnd_plan p, int howmany,
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fftw_complex *in, int istride, int idist,
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fftw_real *out, int ostride, int odist);
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extern void rfftwnd_one_real_to_complex(rfftwnd_plan p,
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fftw_real *in, fftw_complex *out);
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extern void rfftwnd_one_complex_to_real(rfftwnd_plan p,
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fftw_complex *in, fftw_real *out);
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/****************************************************************************/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif /* __cplusplus */
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#endif /* RFFTW_H */
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