diff options
Diffstat (limited to 'src/sndobj/rfftw/frc_7.c')
| -rw-r--r-- | src/sndobj/rfftw/frc_7.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/sndobj/rfftw/frc_7.c b/src/sndobj/rfftw/frc_7.c new file mode 100644 index 0000000..3760736 --- /dev/null +++ b/src/sndobj/rfftw/frc_7.c @@ -0,0 +1,98 @@ +/*
+ * 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 7 */
+
+/*
+ * This function contains 24 FP additions, 18 FP multiplications,
+ * (or, 24 additions, 18 multiplications, 0 fused multiply/add),
+ * 13 stack variables, and 14 memory accesses
+ */
+static const fftw_real K222520933 = FFTW_KONST(+0.222520933956314404288902564496794759466355569);
+static const fftw_real K900968867 = FFTW_KONST(+0.900968867902419126236102319507445051165919162);
+static const fftw_real K623489801 = FFTW_KONST(+0.623489801858733530525004884004239810632274731);
+static const fftw_real K433883739 = FFTW_KONST(+0.433883739117558120475768332848358754609990728);
+static const fftw_real K781831482 = FFTW_KONST(+0.781831482468029808708444526674057750232334519);
+static const fftw_real K974927912 = FFTW_KONST(+0.974927912181823607018131682993931217232785801);
+
+/*
+ * Generator Id's :
+ * $Id: frc_7.c,v 1.1.1.1 2006/05/12 15:15:01 veplaini Exp $
+ * $Id: frc_7.c,v 1.1.1.1 2006/05/12 15:15:01 veplaini Exp $
+ * $Id: frc_7.c,v 1.1.1.1 2006/05/12 15:15:01 veplaini Exp $
+ */
+
+void fftw_real2hc_7(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride)
+{
+ fftw_real tmp1;
+ fftw_real tmp10;
+ fftw_real tmp11;
+ fftw_real tmp4;
+ fftw_real tmp13;
+ fftw_real tmp7;
+ fftw_real tmp12;
+ fftw_real tmp8;
+ fftw_real tmp9;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp1 = input[0];
+ tmp8 = input[istride];
+ tmp9 = input[6 * istride];
+ tmp10 = tmp8 + tmp9;
+ tmp11 = tmp9 - tmp8;
+ {
+ fftw_real tmp2;
+ fftw_real tmp3;
+ fftw_real tmp5;
+ fftw_real tmp6;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp2 = input[2 * istride];
+ tmp3 = input[5 * istride];
+ tmp4 = tmp2 + tmp3;
+ tmp13 = tmp3 - tmp2;
+ tmp5 = input[3 * istride];
+ tmp6 = input[4 * istride];
+ tmp7 = tmp5 + tmp6;
+ tmp12 = tmp6 - tmp5;
+ }
+ imag_output[2 * imag_ostride] = (K974927912 * tmp11) - (K781831482 * tmp12) - (K433883739 * tmp13);
+ imag_output[imag_ostride] = (K781831482 * tmp11) + (K974927912 * tmp13) + (K433883739 * tmp12);
+ imag_output[3 * imag_ostride] = (K433883739 * tmp11) + (K974927912 * tmp12) - (K781831482 * tmp13);
+ real_output[2 * real_ostride] = tmp1 + (K623489801 * tmp7) - (K900968867 * tmp4) - (K222520933 * tmp10);
+ real_output[real_ostride] = tmp1 + (K623489801 * tmp10) - (K900968867 * tmp7) - (K222520933 * tmp4);
+ real_output[3 * real_ostride] = tmp1 + (K623489801 * tmp4) - (K222520933 * tmp7) - (K900968867 * tmp10);
+ real_output[0] = tmp1 + tmp10 + tmp4 + tmp7;
+}
+
+fftw_codelet_desc fftw_real2hc_7_desc =
+{
+ "fftw_real2hc_7",
+ (void (*)()) fftw_real2hc_7,
+ 7,
+ FFTW_FORWARD,
+ FFTW_REAL2HC,
+ 156,
+ 0,
+ (const int *) 0,
+};
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