diff options
Diffstat (limited to 'sndobj/rfftw/frc_5.c')
| -rw-r--r-- | sndobj/rfftw/frc_5.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/sndobj/rfftw/frc_5.c b/sndobj/rfftw/frc_5.c new file mode 100644 index 0000000..41e9fc9 --- /dev/null +++ b/sndobj/rfftw/frc_5.c @@ -0,0 +1,92 @@ +/*
+ * 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
+ *
+ */
+
+/* This file was automatically generated --- DO NOT EDIT */
+/* Generated on Sun Nov 7 20:43:53 EST 1999 */
+
+#include <fftw-int.h>
+#include <fftw.h>
+
+/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -real2hc 5 */
+
+/*
+ * This function contains 12 FP additions, 6 FP multiplications,
+ * (or, 9 additions, 3 multiplications, 3 fused multiply/add),
+ * 12 stack variables, and 10 memory accesses
+ */
+static const fftw_real K250000000 = FFTW_KONST(+0.250000000000000000000000000000000000000000000);
+static const fftw_real K559016994 = FFTW_KONST(+0.559016994374947424102293417182819058860154590);
+static const fftw_real K587785252 = FFTW_KONST(+0.587785252292473129168705954639072768597652438);
+static const fftw_real K951056516 = FFTW_KONST(+0.951056516295153572116439333379382143405698634);
+
+/*
+ * Generator Id's :
+ * $Id: frc_5.c,v 1.1.1.1 2006/05/12 15:14:56 veplaini Exp $
+ * $Id: frc_5.c,v 1.1.1.1 2006/05/12 15:14:56 veplaini Exp $
+ * $Id: frc_5.c,v 1.1.1.1 2006/05/12 15:14:56 veplaini Exp $
+ */
+
+void fftw_real2hc_5(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride)
+{
+ fftw_real tmp10;
+ fftw_real tmp7;
+ fftw_real tmp8;
+ fftw_real tmp3;
+ fftw_real tmp11;
+ fftw_real tmp6;
+ fftw_real tmp9;
+ fftw_real tmp12;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp10 = input[0];
+ {
+ fftw_real tmp1;
+ fftw_real tmp2;
+ fftw_real tmp4;
+ fftw_real tmp5;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp1 = input[istride];
+ tmp2 = input[4 * istride];
+ tmp7 = tmp1 + tmp2;
+ tmp4 = input[2 * istride];
+ tmp5 = input[3 * istride];
+ tmp8 = tmp4 + tmp5;
+ tmp3 = tmp1 - tmp2;
+ tmp11 = tmp7 + tmp8;
+ tmp6 = tmp4 - tmp5;
+ }
+ imag_output[imag_ostride] = -((K951056516 * tmp3) + (K587785252 * tmp6));
+ imag_output[2 * imag_ostride] = (K951056516 * tmp6) - (K587785252 * tmp3);
+ real_output[0] = tmp10 + tmp11;
+ tmp9 = K559016994 * (tmp7 - tmp8);
+ tmp12 = tmp10 - (K250000000 * tmp11);
+ real_output[real_ostride] = tmp9 + tmp12;
+ real_output[2 * real_ostride] = tmp12 - tmp9;
+}
+
+fftw_codelet_desc fftw_real2hc_5_desc =
+{
+ "fftw_real2hc_5",
+ (void (*)()) fftw_real2hc_5,
+ 5,
+ FFTW_FORWARD,
+ FFTW_REAL2HC,
+ 112,
+ 0,
+ (const int *) 0,
+};
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