diff options
Diffstat (limited to 'src/sndobj/rfftw/frc_6.c')
| -rw-r--r-- | src/sndobj/rfftw/frc_6.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/sndobj/rfftw/frc_6.c b/src/sndobj/rfftw/frc_6.c new file mode 100644 index 0000000..1d5b669 --- /dev/null +++ b/src/sndobj/rfftw/frc_6.c @@ -0,0 +1,95 @@ +/*
+ * 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 20:43:54 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 6 */
+
+/*
+ * This function contains 14 FP additions, 4 FP multiplications,
+ * (or, 12 additions, 2 multiplications, 2 fused multiply/add),
+ * 14 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: frc_6.c,v 1.1.1.1 2006/05/12 15:14:59 veplaini Exp $
+ * $Id: frc_6.c,v 1.1.1.1 2006/05/12 15:14:59 veplaini Exp $
+ * $Id: frc_6.c,v 1.1.1.1 2006/05/12 15:14:59 veplaini Exp $
+ */
+
+void fftw_real2hc_6(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride)
+{
+ fftw_real tmp3;
+ fftw_real tmp13;
+ fftw_real tmp9;
+ fftw_real tmp11;
+ fftw_real tmp6;
+ fftw_real tmp12;
+ fftw_real tmp1;
+ fftw_real tmp2;
+ fftw_real tmp10;
+ fftw_real tmp14;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp1 = input[0];
+ tmp2 = input[3 * istride];
+ tmp3 = tmp1 - tmp2;
+ tmp13 = tmp1 + tmp2;
+ {
+ fftw_real tmp7;
+ fftw_real tmp8;
+ fftw_real tmp4;
+ fftw_real tmp5;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp7 = input[4 * istride];
+ tmp8 = input[istride];
+ tmp9 = tmp7 - tmp8;
+ tmp11 = tmp7 + tmp8;
+ tmp4 = input[2 * istride];
+ tmp5 = input[5 * istride];
+ tmp6 = tmp4 - tmp5;
+ tmp12 = tmp4 + tmp5;
+ }
+ imag_output[imag_ostride] = K866025403 * (tmp9 - tmp6);
+ tmp10 = tmp6 + tmp9;
+ real_output[real_ostride] = tmp3 - (K500000000 * tmp10);
+ real_output[3 * real_ostride] = tmp3 + tmp10;
+ imag_output[2 * imag_ostride] = -(K866025403 * (tmp11 - tmp12));
+ tmp14 = tmp12 + tmp11;
+ real_output[2 * real_ostride] = tmp13 - (K500000000 * tmp14);
+ real_output[0] = tmp13 + tmp14;
+}
+
+fftw_codelet_desc fftw_real2hc_6_desc =
+{
+ "fftw_real2hc_6",
+ (void (*)()) fftw_real2hc_6,
+ 6,
+ FFTW_FORWARD,
+ FFTW_REAL2HC,
+ 134,
+ 0,
+ (const int *) 0,
+};
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