diff src/fftw-3.3.3/api/plan-guru-dft-c2r.h @ 10:37bf6b4a2645

Add FFTW3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.3/api/plan-guru-dft-c2r.h	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2003, 2007-11 Matteo Frigo
+ * Copyright (c) 2003, 2007-11 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include "api.h"
+#include "rdft.h"
+
+X(plan) XGURU(dft_c2r)(int rank, const IODIM *dims,
+		       int howmany_rank, const IODIM *howmany_dims,
+		       C *in, R *out, unsigned flags)
+{
+     R *ri, *ii;
+
+     if (!GURU_KOSHERP(rank, dims, howmany_rank, howmany_dims)) return 0;
+
+     EXTRACT_REIM(FFT_SIGN, in, &ri, &ii);
+
+     if (out != ri)
+	  flags |= FFTW_DESTROY_INPUT;
+     return X(mkapiplan)(
+	  0, flags, 
+	  X(mkproblem_rdft2_d_3pointers)(
+	       MKTENSOR_IODIMS(rank, dims, 2, 1),
+	       MKTENSOR_IODIMS(howmany_rank, howmany_dims, 2, 1),
+	       TAINT_UNALIGNED(out, flags),
+	       TAINT_UNALIGNED(ri, flags),
+	       TAINT_UNALIGNED(ii, flags), HC2R));
+}