From 5a422aba704c375a307a902bafe658342e209906 Mon Sep 17 00:00:00 2001
From: scuri <scuri>
Date: Fri, 17 Oct 2008 06:10:15 +0000
Subject: First commit - moving from LuaForge to SourceForge

---
 src/fftw/fn_3.c | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 src/fftw/fn_3.c

(limited to 'src/fftw/fn_3.c')

diff --git a/src/fftw/fn_3.c b/src/fftw/fn_3.c
new file mode 100644
index 0000000..4f143d7
--- /dev/null
+++ b/src/fftw/fn_3.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 1997-1999, 2003 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
+ *
+ */
+
+/* This file was automatically generated --- DO NOT EDIT */
+/* Generated on Mon Mar 24 02:05:37 EST 2003 */
+
+#include "fftw-int.h"
+#include "fftw.h"
+
+/* Generated by: /homee/stevenj/cvs/fftw/gensrc/genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddle 3 */
+
+/*
+ * This function contains 12 FP additions, 4 FP multiplications,
+ * (or, 10 additions, 2 multiplications, 2 fused multiply/add),
+ * 12 stack variables, and 12 memory accesses
+ */
+static const fftw_real K500000000 =
+FFTW_KONST(+0.500000000000000000000000000000000000000000000);
+static const fftw_real K866025403 =
+FFTW_KONST(+0.866025403784438646763723170752936183471402627);
+
+/*
+ * Generator Id's : 
+ * $Id: fn_3.c,v 1.1 2008/10/17 06:13:18 scuri Exp $
+ * $Id: fn_3.c,v 1.1 2008/10/17 06:13:18 scuri Exp $
+ * $Id: fn_3.c,v 1.1 2008/10/17 06:13:18 scuri Exp $
+ */
+
+void fftw_no_twiddle_3(const fftw_complex *input, fftw_complex *output,
+		       int istride, int ostride)
+{
+     fftw_real tmp1;
+     fftw_real tmp10;
+     fftw_real tmp4;
+     fftw_real tmp9;
+     fftw_real tmp8;
+     fftw_real tmp11;
+     fftw_real tmp5;
+     fftw_real tmp12;
+     ASSERT_ALIGNED_DOUBLE;
+     tmp1 = c_re(input[0]);
+     tmp10 = c_im(input[0]);
+     {
+	  fftw_real tmp2;
+	  fftw_real tmp3;
+	  fftw_real tmp6;
+	  fftw_real tmp7;
+	  ASSERT_ALIGNED_DOUBLE;
+	  tmp2 = c_re(input[istride]);
+	  tmp3 = c_re(input[2 * istride]);
+	  tmp4 = tmp2 + tmp3;
+	  tmp9 = K866025403 * (tmp3 - tmp2);
+	  tmp6 = c_im(input[istride]);
+	  tmp7 = c_im(input[2 * istride]);
+	  tmp8 = K866025403 * (tmp6 - tmp7);
+	  tmp11 = tmp6 + tmp7;
+     }
+     c_re(output[0]) = tmp1 + tmp4;
+     tmp5 = tmp1 - (K500000000 * tmp4);
+     c_re(output[2 * ostride]) = tmp5 - tmp8;
+     c_re(output[ostride]) = tmp5 + tmp8;
+     c_im(output[0]) = tmp10 + tmp11;
+     tmp12 = tmp10 - (K500000000 * tmp11);
+     c_im(output[ostride]) = tmp9 + tmp12;
+     c_im(output[2 * ostride]) = tmp12 - tmp9;
+}
+
+fftw_codelet_desc fftw_no_twiddle_3_desc = {
+     "fftw_no_twiddle_3",
+     (void (*)()) fftw_no_twiddle_3,
+     3,
+     FFTW_FORWARD,
+     FFTW_NOTW,
+     67,
+     0,
+     (const int *) 0,
+};
-- 
cgit v1.2.3