diff src/fftw-3.3.3/api/execute-split-dft-c2r.c @ 10:37bf6b4a2645

Add FFTW3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.3/api/execute-split-dft-c2r.c	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,30 @@
+/*
+ * 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"
+
+/* guru interface: requires care in alignment, r - i, etcetera. */
+void X(execute_split_dft_c2r)(const X(plan) p, R *ri, R *ii, R *out)
+{
+     plan_rdft2 *pln = (plan_rdft2 *) p->pln;
+     problem_rdft2 *prb = (problem_rdft2 *) p->prb;
+     pln->apply((plan *) pln, out, out + (prb->r1 - prb->r0), ri, ii);
+}