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author | John Glover <glover.john@gmail.com> | 2010-10-18 17:32:05 +0100 |
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committer | John Glover <glover.john@gmail.com> | 2010-10-18 17:32:05 +0100 |
commit | 30755b92afeae5a5a32860b4f4297180f6d3398d (patch) | |
tree | c9332a65adc6a27016678fccee6ce979d87fed07 /sndobj/rfftw/fhb_6.c | |
parent | 58a7c36c5a219d8306f276db157097ac30782079 (diff) | |
download | simpl-30755b92afeae5a5a32860b4f4297180f6d3398d.tar.gz simpl-30755b92afeae5a5a32860b4f4297180f6d3398d.tar.bz2 simpl-30755b92afeae5a5a32860b4f4297180f6d3398d.zip |
Moved project over to Git
Diffstat (limited to 'sndobj/rfftw/fhb_6.c')
-rw-r--r-- | sndobj/rfftw/fhb_6.c | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/sndobj/rfftw/fhb_6.c b/sndobj/rfftw/fhb_6.c new file mode 100644 index 0000000..5c062a8 --- /dev/null +++ b/sndobj/rfftw/fhb_6.c @@ -0,0 +1,301 @@ +/*
+ * 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 20:45:10 EST 1999 */
+
+#include <fftw-int.h>
+#include <fftw.h>
+
+/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2hc-backward 6 */
+
+/*
+ * This function contains 72 FP additions, 38 FP multiplications,
+ * (or, 54 additions, 20 multiplications, 18 fused multiply/add),
+ * 25 stack variables, and 48 memory accesses
+ */
+static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000);
+static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627);
+static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000);
+static const fftw_real K1_732050807 = FFTW_KONST(+1.732050807568877293527446341505872366942805254);
+
+/*
+ * Generator Id's :
+ * $Id: fhb_6.c,v 1.1.1.1 2006/05/12 15:14:45 veplaini Exp $
+ * $Id: fhb_6.c,v 1.1.1.1 2006/05/12 15:14:45 veplaini Exp $
+ * $Id: fhb_6.c,v 1.1.1.1 2006/05/12 15:14:45 veplaini Exp $
+ */
+
+void fftw_hc2hc_backward_6(fftw_real *A, const fftw_complex *W, int iostride, int m, int dist)
+{
+ int i;
+ fftw_real *X;
+ fftw_real *Y;
+ X = A;
+ Y = A + (6 * iostride);
+ {
+ fftw_real tmp71;
+ fftw_real tmp75;
+ fftw_real tmp80;
+ fftw_real tmp82;
+ fftw_real tmp74;
+ fftw_real tmp76;
+ fftw_real tmp69;
+ fftw_real tmp70;
+ fftw_real tmp77;
+ fftw_real tmp81;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp69 = X[0];
+ tmp70 = X[3 * iostride];
+ tmp71 = tmp69 - tmp70;
+ tmp75 = tmp69 + tmp70;
+ {
+ fftw_real tmp78;
+ fftw_real tmp79;
+ fftw_real tmp72;
+ fftw_real tmp73;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp78 = Y[-2 * iostride];
+ tmp79 = Y[-iostride];
+ tmp80 = K1_732050807 * (tmp78 + tmp79);
+ tmp82 = K1_732050807 * (tmp78 - tmp79);
+ tmp72 = X[2 * iostride];
+ tmp73 = X[iostride];
+ tmp74 = tmp72 - tmp73;
+ tmp76 = tmp72 + tmp73;
+ }
+ X[3 * iostride] = tmp71 + (K2_000000000 * tmp74);
+ tmp77 = tmp71 - tmp74;
+ X[iostride] = tmp77 - tmp80;
+ X[5 * iostride] = tmp77 + tmp80;
+ X[0] = tmp75 + (K2_000000000 * tmp76);
+ tmp81 = tmp75 - tmp76;
+ X[2 * iostride] = tmp81 + tmp82;
+ X[4 * iostride] = tmp81 - tmp82;
+ }
+ X = X + dist;
+ Y = Y - dist;
+ for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 5) {
+ fftw_real tmp15;
+ fftw_real tmp46;
+ fftw_real tmp25;
+ fftw_real tmp52;
+ fftw_real tmp22;
+ fftw_real tmp35;
+ fftw_real tmp49;
+ fftw_real tmp62;
+ fftw_real tmp32;
+ fftw_real tmp39;
+ fftw_real tmp55;
+ fftw_real tmp59;
+ ASSERT_ALIGNED_DOUBLE;
+ {
+ fftw_real tmp13;
+ fftw_real tmp14;
+ fftw_real tmp23;
+ fftw_real tmp24;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp13 = X[0];
+ tmp14 = Y[-3 * iostride];
+ tmp15 = tmp13 + tmp14;
+ tmp46 = tmp13 - tmp14;
+ tmp23 = Y[0];
+ tmp24 = X[3 * iostride];
+ tmp25 = tmp23 - tmp24;
+ tmp52 = tmp23 + tmp24;
+ }
+ {
+ fftw_real tmp18;
+ fftw_real tmp47;
+ fftw_real tmp21;
+ fftw_real tmp48;
+ ASSERT_ALIGNED_DOUBLE;
+ {
+ fftw_real tmp16;
+ fftw_real tmp17;
+ fftw_real tmp19;
+ fftw_real tmp20;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp16 = X[2 * iostride];
+ tmp17 = Y[-5 * iostride];
+ tmp18 = tmp16 + tmp17;
+ tmp47 = tmp16 - tmp17;
+ tmp19 = Y[-4 * iostride];
+ tmp20 = X[iostride];
+ tmp21 = tmp19 + tmp20;
+ tmp48 = tmp19 - tmp20;
+ }
+ tmp22 = tmp18 + tmp21;
+ tmp35 = K866025403 * (tmp18 - tmp21);
+ tmp49 = tmp47 + tmp48;
+ tmp62 = K866025403 * (tmp47 - tmp48);
+ }
+ {
+ fftw_real tmp28;
+ fftw_real tmp54;
+ fftw_real tmp31;
+ fftw_real tmp53;
+ ASSERT_ALIGNED_DOUBLE;
+ {
+ fftw_real tmp26;
+ fftw_real tmp27;
+ fftw_real tmp29;
+ fftw_real tmp30;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp26 = Y[-2 * iostride];
+ tmp27 = X[5 * iostride];
+ tmp28 = tmp26 - tmp27;
+ tmp54 = tmp26 + tmp27;
+ tmp29 = Y[-iostride];
+ tmp30 = X[4 * iostride];
+ tmp31 = tmp29 - tmp30;
+ tmp53 = tmp29 + tmp30;
+ }
+ tmp32 = tmp28 + tmp31;
+ tmp39 = K866025403 * (tmp31 - tmp28);
+ tmp55 = tmp53 - tmp54;
+ tmp59 = K866025403 * (tmp54 + tmp53);
+ }
+ X[0] = tmp15 + tmp22;
+ {
+ fftw_real tmp36;
+ fftw_real tmp42;
+ fftw_real tmp40;
+ fftw_real tmp44;
+ fftw_real tmp34;
+ fftw_real tmp38;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp34 = tmp25 - (K500000000 * tmp32);
+ tmp36 = tmp34 - tmp35;
+ tmp42 = tmp35 + tmp34;
+ tmp38 = tmp15 - (K500000000 * tmp22);
+ tmp40 = tmp38 - tmp39;
+ tmp44 = tmp38 + tmp39;
+ {
+ fftw_real tmp33;
+ fftw_real tmp37;
+ fftw_real tmp41;
+ fftw_real tmp43;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp33 = c_re(W[1]);
+ tmp37 = c_im(W[1]);
+ Y[-3 * iostride] = (tmp33 * tmp36) - (tmp37 * tmp40);
+ X[2 * iostride] = (tmp37 * tmp36) + (tmp33 * tmp40);
+ tmp41 = c_re(W[3]);
+ tmp43 = c_im(W[3]);
+ Y[-iostride] = (tmp41 * tmp42) - (tmp43 * tmp44);
+ X[4 * iostride] = (tmp43 * tmp42) + (tmp41 * tmp44);
+ }
+ }
+ Y[-5 * iostride] = tmp25 + tmp32;
+ {
+ fftw_real tmp50;
+ fftw_real tmp56;
+ fftw_real tmp45;
+ fftw_real tmp51;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp50 = tmp46 + tmp49;
+ tmp56 = tmp52 - tmp55;
+ tmp45 = c_re(W[2]);
+ tmp51 = c_im(W[2]);
+ X[3 * iostride] = (tmp45 * tmp50) + (tmp51 * tmp56);
+ Y[-2 * iostride] = (tmp45 * tmp56) - (tmp51 * tmp50);
+ }
+ {
+ fftw_real tmp60;
+ fftw_real tmp66;
+ fftw_real tmp64;
+ fftw_real tmp68;
+ fftw_real tmp58;
+ fftw_real tmp63;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp58 = tmp46 - (K500000000 * tmp49);
+ tmp60 = tmp58 - tmp59;
+ tmp66 = tmp58 + tmp59;
+ tmp63 = tmp52 + (K500000000 * tmp55);
+ tmp64 = tmp62 + tmp63;
+ tmp68 = tmp63 - tmp62;
+ {
+ fftw_real tmp57;
+ fftw_real tmp61;
+ fftw_real tmp65;
+ fftw_real tmp67;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp57 = c_re(W[0]);
+ tmp61 = c_im(W[0]);
+ X[iostride] = (tmp57 * tmp60) + (tmp61 * tmp64);
+ Y[-4 * iostride] = (tmp57 * tmp64) - (tmp61 * tmp60);
+ tmp65 = c_re(W[4]);
+ tmp67 = c_im(W[4]);
+ X[5 * iostride] = (tmp65 * tmp66) + (tmp67 * tmp68);
+ Y[0] = (tmp65 * tmp68) - (tmp67 * tmp66);
+ }
+ }
+ }
+ if (i == m) {
+ fftw_real tmp1;
+ fftw_real tmp6;
+ fftw_real tmp4;
+ fftw_real tmp5;
+ fftw_real tmp9;
+ fftw_real tmp11;
+ fftw_real tmp12;
+ fftw_real tmp10;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp1 = X[iostride];
+ tmp6 = Y[-iostride];
+ {
+ fftw_real tmp2;
+ fftw_real tmp3;
+ fftw_real tmp7;
+ fftw_real tmp8;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp2 = X[2 * iostride];
+ tmp3 = X[0];
+ tmp4 = tmp2 + tmp3;
+ tmp5 = K1_732050807 * (tmp2 - tmp3);
+ tmp7 = Y[-2 * iostride];
+ tmp8 = Y[0];
+ tmp9 = tmp7 + tmp8;
+ tmp11 = K1_732050807 * (tmp7 - tmp8);
+ }
+ X[0] = K2_000000000 * (tmp1 + tmp4);
+ tmp12 = (K2_000000000 * tmp1) - tmp4;
+ X[2 * iostride] = tmp11 - tmp12;
+ X[4 * iostride] = tmp12 + tmp11;
+ X[3 * iostride] = K2_000000000 * (tmp6 - tmp9);
+ tmp10 = (K2_000000000 * tmp6) + tmp9;
+ X[iostride] = -(tmp5 + tmp10);
+ X[5 * iostride] = tmp5 - tmp10;
+ }
+}
+
+static const int twiddle_order[] =
+{1, 2, 3, 4, 5};
+fftw_codelet_desc fftw_hc2hc_backward_6_desc =
+{
+ "fftw_hc2hc_backward_6",
+ (void (*)()) fftw_hc2hc_backward_6,
+ 6,
+ FFTW_BACKWARD,
+ FFTW_HC2HC,
+ 146,
+ 5,
+ twiddle_order,
+};
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