diff options
Diffstat (limited to 'src/sndobj/rfftw/frc_12.c')
| -rw-r--r-- | src/sndobj/rfftw/frc_12.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/src/sndobj/rfftw/frc_12.c b/src/sndobj/rfftw/frc_12.c new file mode 100644 index 0000000..3e573bf --- /dev/null +++ b/src/sndobj/rfftw/frc_12.c @@ -0,0 +1,164 @@ +/*
+ * 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 20:43:55 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 12 */
+
+/*
+ * This function contains 38 FP additions, 8 FP multiplications,
+ * (or, 34 additions, 4 multiplications, 4 fused multiply/add),
+ * 18 stack variables, and 24 memory accesses
+ */
+static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627);
+static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000);
+
+/*
+ * Generator Id's :
+ * $Id: frc_12.c,v 1.1.1.1 2006/05/12 15:14:56 veplaini Exp $
+ * $Id: frc_12.c,v 1.1.1.1 2006/05/12 15:14:56 veplaini Exp $
+ * $Id: frc_12.c,v 1.1.1.1 2006/05/12 15:14:56 veplaini Exp $
+ */
+
+void fftw_real2hc_12(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride)
+{
+ fftw_real tmp5;
+ fftw_real tmp25;
+ fftw_real tmp11;
+ fftw_real tmp23;
+ fftw_real tmp30;
+ fftw_real tmp35;
+ fftw_real tmp10;
+ fftw_real tmp26;
+ fftw_real tmp12;
+ fftw_real tmp18;
+ fftw_real tmp29;
+ fftw_real tmp34;
+ fftw_real tmp31;
+ fftw_real tmp32;
+ ASSERT_ALIGNED_DOUBLE;
+ {
+ fftw_real tmp1;
+ fftw_real tmp2;
+ fftw_real tmp3;
+ fftw_real tmp4;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp1 = input[0];
+ tmp2 = input[4 * istride];
+ tmp3 = input[8 * istride];
+ tmp4 = tmp2 + tmp3;
+ tmp5 = tmp1 + tmp4;
+ tmp25 = tmp1 - (K500000000 * tmp4);
+ tmp11 = tmp3 - tmp2;
+ }
+ {
+ fftw_real tmp19;
+ fftw_real tmp20;
+ fftw_real tmp21;
+ fftw_real tmp22;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp19 = input[9 * istride];
+ tmp20 = input[istride];
+ tmp21 = input[5 * istride];
+ tmp22 = tmp20 + tmp21;
+ tmp23 = tmp19 - (K500000000 * tmp22);
+ tmp30 = tmp19 + tmp22;
+ tmp35 = tmp21 - tmp20;
+ }
+ {
+ fftw_real tmp6;
+ fftw_real tmp7;
+ fftw_real tmp8;
+ fftw_real tmp9;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp6 = input[6 * istride];
+ tmp7 = input[10 * istride];
+ tmp8 = input[2 * istride];
+ tmp9 = tmp7 + tmp8;
+ tmp10 = tmp6 + tmp9;
+ tmp26 = tmp6 - (K500000000 * tmp9);
+ tmp12 = tmp8 - tmp7;
+ }
+ {
+ fftw_real tmp14;
+ fftw_real tmp15;
+ fftw_real tmp16;
+ fftw_real tmp17;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp14 = input[3 * istride];
+ tmp15 = input[7 * istride];
+ tmp16 = input[11 * istride];
+ tmp17 = tmp15 + tmp16;
+ tmp18 = tmp14 - (K500000000 * tmp17);
+ tmp29 = tmp14 + tmp17;
+ tmp34 = tmp16 - tmp15;
+ }
+ real_output[3 * real_ostride] = tmp5 - tmp10;
+ imag_output[3 * imag_ostride] = tmp29 - tmp30;
+ tmp31 = tmp5 + tmp10;
+ tmp32 = tmp29 + tmp30;
+ real_output[6 * real_ostride] = tmp31 - tmp32;
+ real_output[0] = tmp31 + tmp32;
+ {
+ fftw_real tmp37;
+ fftw_real tmp38;
+ fftw_real tmp33;
+ fftw_real tmp36;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp37 = tmp34 + tmp35;
+ tmp38 = tmp11 + tmp12;
+ imag_output[2 * imag_ostride] = K866025403 * (tmp37 - tmp38);
+ imag_output[4 * imag_ostride] = K866025403 * (tmp38 + tmp37);
+ tmp33 = tmp25 - tmp26;
+ tmp36 = K866025403 * (tmp34 - tmp35);
+ real_output[5 * real_ostride] = tmp33 - tmp36;
+ real_output[real_ostride] = tmp33 + tmp36;
+ }
+ {
+ fftw_real tmp27;
+ fftw_real tmp28;
+ fftw_real tmp13;
+ fftw_real tmp24;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp27 = tmp25 + tmp26;
+ tmp28 = tmp18 + tmp23;
+ real_output[2 * real_ostride] = tmp27 - tmp28;
+ real_output[4 * real_ostride] = tmp27 + tmp28;
+ tmp13 = K866025403 * (tmp11 - tmp12);
+ tmp24 = tmp18 - tmp23;
+ imag_output[imag_ostride] = tmp13 - tmp24;
+ imag_output[5 * imag_ostride] = -(tmp13 + tmp24);
+ }
+}
+
+fftw_codelet_desc fftw_real2hc_12_desc =
+{
+ "fftw_real2hc_12",
+ (void (*)()) fftw_real2hc_12,
+ 12,
+ FFTW_FORWARD,
+ FFTW_REAL2HC,
+ 266,
+ 0,
+ (const int *) 0,
+};
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