diff options
Diffstat (limited to 'src/fftw/fn_5.c')
| -rw-r--r-- | src/fftw/fn_5.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/fftw/fn_5.c b/src/fftw/fn_5.c new file mode 100644 index 0000000..03e5460 --- /dev/null +++ b/src/fftw/fn_5.c @@ -0,0 +1,150 @@ +/* + * Copyright (c) 1997-1999, 2003 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 Mon Mar 24 02:05:37 EST 2003 */ + +#include "fftw-int.h" +#include "fftw.h" + +/* Generated by: /homee/stevenj/cvs/fftw/gensrc/genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddle 5 */ + +/* + * This function contains 32 FP additions, 12 FP multiplications, + * (or, 26 additions, 6 multiplications, 6 fused multiply/add), + * 16 stack variables, and 20 memory accesses + */ +static const fftw_real K250000000 = +FFTW_KONST(+0.250000000000000000000000000000000000000000000); +static const fftw_real K587785252 = +FFTW_KONST(+0.587785252292473129168705954639072768597652438); +static const fftw_real K951056516 = +FFTW_KONST(+0.951056516295153572116439333379382143405698634); +static const fftw_real K559016994 = +FFTW_KONST(+0.559016994374947424102293417182819058860154590); + +/* + * Generator Id's : + * $Id: fn_5.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ + * $Id: fn_5.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ + * $Id: fn_5.c,v 1.1 2008/10/17 06:13:18 scuri Exp $ + */ + +void fftw_no_twiddle_5(const fftw_complex *input, fftw_complex *output, + int istride, int ostride) +{ + fftw_real tmp1; + fftw_real tmp24; + fftw_real tmp8; + fftw_real tmp9; + fftw_real tmp28; + fftw_real tmp29; + fftw_real tmp14; + fftw_real tmp25; + fftw_real tmp23; + fftw_real tmp17; + ASSERT_ALIGNED_DOUBLE; + tmp1 = c_re(input[0]); + tmp24 = c_im(input[0]); + { + fftw_real tmp2; + fftw_real tmp3; + fftw_real tmp4; + fftw_real tmp5; + fftw_real tmp6; + fftw_real tmp7; + ASSERT_ALIGNED_DOUBLE; + tmp2 = c_re(input[istride]); + tmp3 = c_re(input[4 * istride]); + tmp4 = tmp2 + tmp3; + tmp5 = c_re(input[2 * istride]); + tmp6 = c_re(input[3 * istride]); + tmp7 = tmp5 + tmp6; + tmp8 = tmp4 + tmp7; + tmp9 = K559016994 * (tmp4 - tmp7); + tmp28 = tmp2 - tmp3; + tmp29 = tmp5 - tmp6; + } + { + fftw_real tmp12; + fftw_real tmp13; + fftw_real tmp21; + fftw_real tmp15; + fftw_real tmp16; + fftw_real tmp22; + ASSERT_ALIGNED_DOUBLE; + tmp12 = c_im(input[istride]); + tmp13 = c_im(input[4 * istride]); + tmp21 = tmp12 + tmp13; + tmp15 = c_im(input[2 * istride]); + tmp16 = c_im(input[3 * istride]); + tmp22 = tmp15 + tmp16; + tmp14 = tmp12 - tmp13; + tmp25 = tmp21 + tmp22; + tmp23 = K559016994 * (tmp21 - tmp22); + tmp17 = tmp15 - tmp16; + } + c_re(output[0]) = tmp1 + tmp8; + { + fftw_real tmp18; + fftw_real tmp20; + fftw_real tmp11; + fftw_real tmp19; + fftw_real tmp10; + ASSERT_ALIGNED_DOUBLE; + tmp18 = (K951056516 * tmp14) + (K587785252 * tmp17); + tmp20 = (K951056516 * tmp17) - (K587785252 * tmp14); + tmp10 = tmp1 - (K250000000 * tmp8); + tmp11 = tmp9 + tmp10; + tmp19 = tmp10 - tmp9; + c_re(output[4 * ostride]) = tmp11 - tmp18; + c_re(output[ostride]) = tmp11 + tmp18; + c_re(output[2 * ostride]) = tmp19 - tmp20; + c_re(output[3 * ostride]) = tmp19 + tmp20; + } + c_im(output[0]) = tmp25 + tmp24; + { + fftw_real tmp30; + fftw_real tmp31; + fftw_real tmp27; + fftw_real tmp32; + fftw_real tmp26; + ASSERT_ALIGNED_DOUBLE; + tmp30 = (K951056516 * tmp28) + (K587785252 * tmp29); + tmp31 = (K951056516 * tmp29) - (K587785252 * tmp28); + tmp26 = tmp24 - (K250000000 * tmp25); + tmp27 = tmp23 + tmp26; + tmp32 = tmp26 - tmp23; + c_im(output[ostride]) = tmp27 - tmp30; + c_im(output[4 * ostride]) = tmp30 + tmp27; + c_im(output[2 * ostride]) = tmp31 + tmp32; + c_im(output[3 * ostride]) = tmp32 - tmp31; + } +} + +fftw_codelet_desc fftw_no_twiddle_5_desc = { + "fftw_no_twiddle_5", + (void (*)()) fftw_no_twiddle_5, + 5, + FFTW_FORWARD, + FFTW_NOTW, + 111, + 0, + (const int *) 0, +}; |