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/*
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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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#include <ports/rfftw.h>
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#include <ports/f77_func.h>
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#ifdef F77_FUNC_ /* only compile wrappers if fortran mangling is known */
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/* rfftwf77.c: FORTRAN-callable "wrappers" for some of the RFFTW routines.
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   See also fftwf77.c. */
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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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void F77_FUNC_(rfftw_f77_create_plan,RFFTW_F77_CREATE_PLAN)
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(fftw_plan *p, int *n, int *idir, int *flags)
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{
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     fftw_direction dir = *idir < 0 ? FFTW_FORWARD : FFTW_BACKWARD;
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     *p = rfftw_create_plan(*n,dir,*flags);
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}
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void F77_FUNC_(rfftw_f77_destroy_plan,RFFTW_F77_DESTROY_PLAN)
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(fftw_plan *p)
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{
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     rfftw_destroy_plan(*p);
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}
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void F77_FUNC_(rfftw_f77,RFFTW_F77)
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(fftw_plan *p, int *howmany, fftw_real *in, int *istride, int *idist,
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 fftw_real *out, int *ostride, int *odist)
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{
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     rfftw(*p,*howmany,in,*istride,*idist,out,*ostride,*odist);
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}
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void F77_FUNC_(rfftw_f77_one,RFFTW_F77_ONE)
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(fftw_plan *p, fftw_real *in, fftw_real *out)
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{
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     rfftw_one(*p,in,out);
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}
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extern void fftw_reverse_int_array(int *a, int n);
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void F77_FUNC_(rfftwnd_f77_create_plan,RFFTWND_F77_CREATE_PLAN)
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(fftwnd_plan *p, int *rank, int *n, int *idir, int *flags)
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{
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     fftw_direction dir = *idir < 0 ? FFTW_FORWARD : FFTW_BACKWARD;
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     fftw_reverse_int_array(n,*rank);  /* column-major -> row-major */
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     *p = rfftwnd_create_plan(*rank,n,dir,*flags);
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     fftw_reverse_int_array(n,*rank);  /* reverse back */
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}
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void F77_FUNC_(rfftw2d_f77_create_plan,RFFTW2D_F77_CREATE_PLAN)
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(fftwnd_plan *p, int *nx, int *ny, int *idir, int *flags)
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{
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     fftw_direction dir = *idir < 0 ? FFTW_FORWARD : FFTW_BACKWARD;
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     *p = rfftw2d_create_plan(*ny,*nx,dir,*flags);
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}
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void F77_FUNC_(rfftw3d_f77_create_plan,RFFTW3D_F77_CREATE_PLAN)
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(fftwnd_plan *p, int *nx, int *ny, int *nz, int *idir, int *flags)
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{
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     fftw_direction dir = *idir < 0 ? FFTW_FORWARD : FFTW_BACKWARD;
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     *p = rfftw3d_create_plan(*nz,*ny,*nx,dir,*flags);
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}
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void F77_FUNC_(rfftwnd_f77_destroy_plan,RFFTWND_F77_DESTROY_PLAN)
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(fftwnd_plan *p)
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{
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     rfftwnd_destroy_plan(*p);
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}
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void F77_FUNC_(rfftwnd_f77_real_to_complex,RFFTWND_F77_REAL_TO_COMPLEX)
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(fftwnd_plan *p, int *howmany, fftw_real *in, int *istride, int *idist,
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 fftw_complex *out, int *ostride, int *odist)
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{
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     rfftwnd_real_to_complex(*p,*howmany,in,*istride,*idist,
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                             out,*ostride,*odist);
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}
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void F77_FUNC_(rfftwnd_f77_one_real_to_complex,RFFTWND_F77_ONE_REAL_TO_COMPLEX)
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(fftwnd_plan *p, fftw_real *in, fftw_complex *out)
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{
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     rfftwnd_one_real_to_complex(*p,in,out);
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}
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void F77_FUNC_(rfftwnd_f77_complex_to_real,RFFTWND_F77_COMPLEX_TO_REAL)
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(fftwnd_plan *p, int *howmany, fftw_complex *in, int *istride, int *idist,
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 fftw_real *out, int *ostride, int *odist)
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{
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     rfftwnd_complex_to_real(*p,*howmany,in,*istride,*idist,
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                             out,*ostride,*odist);
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}
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void F77_FUNC_(rfftwnd_f77_one_complex_to_real,RFFTWND_F77_ONE_COMPLEX_TO_REAL)
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(fftwnd_plan *p, fftw_complex *in, fftw_real *out)
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{
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     rfftwnd_one_complex_to_real(*p,in,out);
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}
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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 /* defined(F77_FUNC_) */