From 30755b92afeae5a5a32860b4f4297180f6d3398d Mon Sep 17 00:00:00 2001
From: John Glover <glover.john@gmail.com>
Date: Mon, 18 Oct 2010 17:32:05 +0100
Subject: Moved project over to Git

---
 sndobj/rfftw/rfftwf77.c | 130 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 sndobj/rfftw/rfftwf77.c

(limited to 'sndobj/rfftw/rfftwf77.c')

diff --git a/sndobj/rfftw/rfftwf77.c b/sndobj/rfftw/rfftwf77.c
new file mode 100644
index 0000000..23d2eda
--- /dev/null
+++ b/sndobj/rfftw/rfftwf77.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 1997-1999 Massachusetts Institute of Technology
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <rfftw.h>
+#include <f77_func.h>
+
+#ifdef F77_FUNC_ /* only compile wrappers if fortran mangling is known */
+
+/* rfftwf77.c: FORTRAN-callable "wrappers" for some of the RFFTW routines.
+
+   See also fftwf77.c. */
+
+#ifdef __cplusplus
+extern "C" {
+#endif                          /* __cplusplus */
+
+/************************************************************************/
+
+void F77_FUNC_(rfftw_f77_create_plan,RFFTW_F77_CREATE_PLAN)
+(fftw_plan *p, int *n, int *idir, int *flags)
+{
+     fftw_direction dir = *idir < 0 ? FFTW_FORWARD : FFTW_BACKWARD;
+
+     *p = rfftw_create_plan(*n,dir,*flags);
+}
+
+void F77_FUNC_(rfftw_f77_destroy_plan,RFFTW_F77_DESTROY_PLAN)
+(fftw_plan *p)
+{
+     rfftw_destroy_plan(*p);
+}
+
+void F77_FUNC_(rfftw_f77,RFFTW_F77)
+(fftw_plan *p, int *howmany, fftw_real *in, int *istride, int *idist,
+ fftw_real *out, int *ostride, int *odist)
+{
+     rfftw(*p,*howmany,in,*istride,*idist,out,*ostride,*odist);
+}
+
+void F77_FUNC_(rfftw_f77_one,RFFTW_F77_ONE)
+(fftw_plan *p, fftw_real *in, fftw_real *out)
+{
+     rfftw_one(*p,in,out);
+}
+
+extern void fftw_reverse_int_array(int *a, int n);
+
+void F77_FUNC_(rfftwnd_f77_create_plan,RFFTWND_F77_CREATE_PLAN)
+(fftwnd_plan *p, int *rank, int *n, int *idir, int *flags)
+{
+     fftw_direction dir = *idir < 0 ? FFTW_FORWARD : FFTW_BACKWARD;
+
+     fftw_reverse_int_array(n,*rank);  /* column-major -> row-major */
+     *p = rfftwnd_create_plan(*rank,n,dir,*flags);
+     fftw_reverse_int_array(n,*rank);  /* reverse back */
+}
+
+void F77_FUNC_(rfftw2d_f77_create_plan,RFFTW2D_F77_CREATE_PLAN)
+(fftwnd_plan *p, int *nx, int *ny, int *idir, int *flags)
+{
+     fftw_direction dir = *idir < 0 ? FFTW_FORWARD : FFTW_BACKWARD;
+
+     *p = rfftw2d_create_plan(*ny,*nx,dir,*flags);
+}
+
+void F77_FUNC_(rfftw3d_f77_create_plan,RFFTW3D_F77_CREATE_PLAN)
+(fftwnd_plan *p, int *nx, int *ny, int *nz, int *idir, int *flags)
+{
+     fftw_direction dir = *idir < 0 ? FFTW_FORWARD : FFTW_BACKWARD;
+
+     *p = rfftw3d_create_plan(*nz,*ny,*nx,dir,*flags);
+}
+
+void F77_FUNC_(rfftwnd_f77_destroy_plan,RFFTWND_F77_DESTROY_PLAN)
+(fftwnd_plan *p)
+{
+     rfftwnd_destroy_plan(*p);
+}
+
+void F77_FUNC_(rfftwnd_f77_real_to_complex,RFFTWND_F77_REAL_TO_COMPLEX)
+(fftwnd_plan *p, int *howmany, fftw_real *in, int *istride, int *idist,
+ fftw_complex *out, int *ostride, int *odist)
+{
+     rfftwnd_real_to_complex(*p,*howmany,in,*istride,*idist,
+			     out,*ostride,*odist);
+}
+
+void F77_FUNC_(rfftwnd_f77_one_real_to_complex,RFFTWND_F77_ONE_REAL_TO_COMPLEX)
+(fftwnd_plan *p, fftw_real *in, fftw_complex *out)
+{
+     rfftwnd_one_real_to_complex(*p,in,out);
+}
+
+void F77_FUNC_(rfftwnd_f77_complex_to_real,RFFTWND_F77_COMPLEX_TO_REAL)
+(fftwnd_plan *p, int *howmany, fftw_complex *in, int *istride, int *idist,
+ fftw_real *out, int *ostride, int *odist)
+{
+     rfftwnd_complex_to_real(*p,*howmany,in,*istride,*idist,
+			     out,*ostride,*odist);
+}
+
+void F77_FUNC_(rfftwnd_f77_one_complex_to_real,RFFTWND_F77_ONE_COMPLEX_TO_REAL)
+(fftwnd_plan *p, fftw_complex *in, fftw_real *out)
+{
+     rfftwnd_one_complex_to_real(*p,in,out);
+}
+
+/****************************************************************************/
+
+#ifdef __cplusplus
+}                               /* extern "C" */
+#endif                          /* __cplusplus */
+
+#endif /* defined(F77_FUNC_) */
-- 
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