diff options
Diffstat (limited to 'sndobj/rfftw/frc_8.c')
| -rw-r--r-- | sndobj/rfftw/frc_8.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/sndobj/rfftw/frc_8.c b/sndobj/rfftw/frc_8.c new file mode 100644 index 0000000..660c9e1 --- /dev/null +++ b/sndobj/rfftw/frc_8.c @@ -0,0 +1,114 @@ +/*
+ * 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 8 */
+
+/*
+ * This function contains 20 FP additions, 2 FP multiplications,
+ * (or, 20 additions, 2 multiplications, 0 fused multiply/add),
+ * 12 stack variables, and 16 memory accesses
+ */
+static const fftw_real K707106781 = FFTW_KONST(+0.707106781186547524400844362104849039284835938);
+
+/*
+ * Generator Id's :
+ * $Id: frc_8.c,v 1.1.1.1 2006/05/12 15:14:59 veplaini Exp $
+ * $Id: frc_8.c,v 1.1.1.1 2006/05/12 15:14:59 veplaini Exp $
+ * $Id: frc_8.c,v 1.1.1.1 2006/05/12 15:14:59 veplaini Exp $
+ */
+
+void fftw_real2hc_8(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 tmp7;
+ fftw_real tmp13;
+ fftw_real tmp19;
+ fftw_real tmp6;
+ fftw_real tmp16;
+ fftw_real tmp10;
+ fftw_real tmp18;
+ ASSERT_ALIGNED_DOUBLE;
+ {
+ fftw_real tmp1;
+ fftw_real tmp2;
+ fftw_real tmp11;
+ fftw_real tmp12;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp1 = input[0];
+ tmp2 = input[4 * istride];
+ tmp3 = tmp1 + tmp2;
+ tmp7 = tmp1 - tmp2;
+ tmp11 = input[7 * istride];
+ tmp12 = input[3 * istride];
+ tmp13 = tmp11 - tmp12;
+ tmp19 = tmp11 + tmp12;
+ }
+ {
+ fftw_real tmp4;
+ fftw_real tmp5;
+ fftw_real tmp8;
+ fftw_real tmp9;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp4 = input[2 * istride];
+ tmp5 = input[6 * istride];
+ tmp6 = tmp4 + tmp5;
+ tmp16 = tmp4 - tmp5;
+ tmp8 = input[istride];
+ tmp9 = input[5 * istride];
+ tmp10 = tmp8 - tmp9;
+ tmp18 = tmp8 + tmp9;
+ }
+ {
+ fftw_real tmp17;
+ fftw_real tmp20;
+ fftw_real tmp14;
+ fftw_real tmp15;
+ ASSERT_ALIGNED_DOUBLE;
+ real_output[2 * real_ostride] = tmp3 - tmp6;
+ tmp17 = tmp3 + tmp6;
+ tmp20 = tmp18 + tmp19;
+ real_output[4 * real_ostride] = tmp17 - tmp20;
+ real_output[0] = tmp17 + tmp20;
+ imag_output[2 * imag_ostride] = tmp19 - tmp18;
+ tmp14 = K707106781 * (tmp10 + tmp13);
+ real_output[3 * real_ostride] = tmp7 - tmp14;
+ real_output[real_ostride] = tmp7 + tmp14;
+ tmp15 = K707106781 * (tmp13 - tmp10);
+ imag_output[imag_ostride] = tmp15 - tmp16;
+ imag_output[3 * imag_ostride] = tmp16 + tmp15;
+ }
+}
+
+fftw_codelet_desc fftw_real2hc_8_desc =
+{
+ "fftw_real2hc_8",
+ (void (*)()) fftw_real2hc_8,
+ 8,
+ FFTW_FORWARD,
+ FFTW_REAL2HC,
+ 178,
+ 0,
+ (const int *) 0,
+};
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