From 416bd737074a287ea47106c73ea6bcfde40a75a8 Mon Sep 17 00:00:00 2001 From: John Glover Date: Fri, 24 Jun 2011 18:17:23 +0100 Subject: Change to using distutils. Currently only builds the simplsndobj module --- src/sndobj/rfftw/fhb_4.c | 193 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 193 insertions(+) create mode 100644 src/sndobj/rfftw/fhb_4.c (limited to 'src/sndobj/rfftw/fhb_4.c') diff --git a/src/sndobj/rfftw/fhb_4.c b/src/sndobj/rfftw/fhb_4.c new file mode 100644 index 0000000..5400df3 --- /dev/null +++ b/src/sndobj/rfftw/fhb_4.c @@ -0,0 +1,193 @@ +/* + * 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 +#include + +/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -hc2hc-backward 4 */ + +/* + * This function contains 34 FP additions, 18 FP multiplications, + * (or, 28 additions, 12 multiplications, 6 fused multiply/add), + * 15 stack variables, and 32 memory accesses + */ +static const fftw_real K1_414213562 = FFTW_KONST(+1.414213562373095048801688724209698078569671875); +static const fftw_real K2_000000000 = FFTW_KONST(+2.000000000000000000000000000000000000000000000); + +/* + * Generator Id's : + * $Id: fhb_4.c,v 1.1.1.1 2006/05/12 15:14:46 veplaini Exp $ + * $Id: fhb_4.c,v 1.1.1.1 2006/05/12 15:14:46 veplaini Exp $ + * $Id: fhb_4.c,v 1.1.1.1 2006/05/12 15:14:46 veplaini Exp $ + */ + +void fftw_hc2hc_backward_4(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 + (4 * iostride); + { + fftw_real tmp39; + fftw_real tmp42; + fftw_real tmp37; + fftw_real tmp40; + ASSERT_ALIGNED_DOUBLE; + { + fftw_real tmp38; + fftw_real tmp41; + fftw_real tmp35; + fftw_real tmp36; + ASSERT_ALIGNED_DOUBLE; + tmp38 = X[iostride]; + tmp39 = K2_000000000 * tmp38; + tmp41 = Y[-iostride]; + tmp42 = K2_000000000 * tmp41; + tmp35 = X[0]; + tmp36 = X[2 * iostride]; + tmp37 = tmp35 + tmp36; + tmp40 = tmp35 - tmp36; + } + X[2 * iostride] = tmp37 - tmp39; + X[0] = tmp37 + tmp39; + X[3 * iostride] = tmp40 + tmp42; + X[iostride] = tmp40 - tmp42; + } + X = X + dist; + Y = Y - dist; + for (i = 2; i < m; i = i + 2, X = X + dist, Y = Y - dist, W = W + 3) { + fftw_real tmp9; + fftw_real tmp28; + fftw_real tmp18; + fftw_real tmp25; + fftw_real tmp12; + fftw_real tmp24; + fftw_real tmp21; + fftw_real tmp29; + ASSERT_ALIGNED_DOUBLE; + { + fftw_real tmp7; + fftw_real tmp8; + fftw_real tmp16; + fftw_real tmp17; + ASSERT_ALIGNED_DOUBLE; + tmp7 = X[0]; + tmp8 = Y[-2 * iostride]; + tmp9 = tmp7 + tmp8; + tmp28 = tmp7 - tmp8; + tmp16 = Y[0]; + tmp17 = X[2 * iostride]; + tmp18 = tmp16 - tmp17; + tmp25 = tmp16 + tmp17; + } + { + fftw_real tmp10; + fftw_real tmp11; + fftw_real tmp19; + fftw_real tmp20; + ASSERT_ALIGNED_DOUBLE; + tmp10 = X[iostride]; + tmp11 = Y[-3 * iostride]; + tmp12 = tmp10 + tmp11; + tmp24 = tmp10 - tmp11; + tmp19 = Y[-iostride]; + tmp20 = X[3 * iostride]; + tmp21 = tmp19 - tmp20; + tmp29 = tmp19 + tmp20; + } + X[0] = tmp9 + tmp12; + { + fftw_real tmp14; + fftw_real tmp22; + fftw_real tmp13; + fftw_real tmp15; + ASSERT_ALIGNED_DOUBLE; + tmp14 = tmp9 - tmp12; + tmp22 = tmp18 - tmp21; + tmp13 = c_re(W[1]); + tmp15 = c_im(W[1]); + X[2 * iostride] = (tmp13 * tmp14) + (tmp15 * tmp22); + Y[-iostride] = (tmp13 * tmp22) - (tmp15 * tmp14); + } + Y[-3 * iostride] = tmp18 + tmp21; + { + fftw_real tmp26; + fftw_real tmp30; + fftw_real tmp23; + fftw_real tmp27; + ASSERT_ALIGNED_DOUBLE; + tmp26 = tmp24 + tmp25; + tmp30 = tmp28 - tmp29; + tmp23 = c_re(W[0]); + tmp27 = c_im(W[0]); + Y[-2 * iostride] = (tmp23 * tmp26) - (tmp27 * tmp30); + X[iostride] = (tmp27 * tmp26) + (tmp23 * tmp30); + } + { + fftw_real tmp32; + fftw_real tmp34; + fftw_real tmp31; + fftw_real tmp33; + ASSERT_ALIGNED_DOUBLE; + tmp32 = tmp25 - tmp24; + tmp34 = tmp28 + tmp29; + tmp31 = c_re(W[2]); + tmp33 = c_im(W[2]); + Y[0] = (tmp31 * tmp32) - (tmp33 * tmp34); + X[3 * iostride] = (tmp33 * tmp32) + (tmp31 * tmp34); + } + } + if (i == m) { + fftw_real tmp1; + fftw_real tmp2; + fftw_real tmp3; + fftw_real tmp4; + fftw_real tmp5; + fftw_real tmp6; + ASSERT_ALIGNED_DOUBLE; + tmp1 = X[0]; + tmp2 = X[iostride]; + tmp3 = tmp1 - tmp2; + tmp4 = Y[0]; + tmp5 = Y[-iostride]; + tmp6 = tmp4 + tmp5; + X[0] = K2_000000000 * (tmp1 + tmp2); + X[2 * iostride] = -(K2_000000000 * (tmp4 - tmp5)); + X[iostride] = K1_414213562 * (tmp3 - tmp6); + X[3 * iostride] = -(K1_414213562 * (tmp3 + tmp6)); + } +} + +static const int twiddle_order[] = +{1, 2, 3}; +fftw_codelet_desc fftw_hc2hc_backward_4_desc = +{ + "fftw_hc2hc_backward_4", + (void (*)()) fftw_hc2hc_backward_4, + 4, + FFTW_BACKWARD, + FFTW_HC2HC, + 102, + 3, + twiddle_order, +}; -- cgit v1.2.3