ref: 1328d84e8b10421e3db2e0c778f359532b0a9cc4
dir: /libfaad/fftw/fn_7.c/
/* * 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 20:43:47 EST 1999 */ #include <fftw-int.h> #include <fftw.h> /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddle 7 */ /* * This function contains 60 FP additions, 36 FP multiplications, * (or, 60 additions, 36 multiplications, 0 fused multiply/add), * 22 stack variables, and 28 memory accesses */ static const fftw_real K222520933 = FFTW_KONST(+0.222520933956314404288902564496794759466355569); static const fftw_real K900968867 = FFTW_KONST(+0.900968867902419126236102319507445051165919162); static const fftw_real K623489801 = FFTW_KONST(+0.623489801858733530525004884004239810632274731); static const fftw_real K433883739 = FFTW_KONST(+0.433883739117558120475768332848358754609990728); static const fftw_real K974927912 = FFTW_KONST(+0.974927912181823607018131682993931217232785801); static const fftw_real K781831482 = FFTW_KONST(+0.781831482468029808708444526674057750232334519); /* * Generator Id's : * $Id: fn_7.c,v 1.1 2002/04/07 21:26:04 menno Exp $ * $Id: fn_7.c,v 1.1 2002/04/07 21:26:04 menno Exp $ * $Id: fn_7.c,v 1.1 2002/04/07 21:26:04 menno Exp $ */ void fftw_no_twiddle_7(const fftw_complex *input, fftw_complex *output, int istride, int ostride) { fftw_real tmp1; fftw_real tmp30; fftw_real tmp4; fftw_real tmp26; fftw_real tmp14; fftw_real tmp33; fftw_real tmp7; fftw_real tmp28; fftw_real tmp20; fftw_real tmp31; fftw_real tmp10; fftw_real tmp27; fftw_real tmp17; fftw_real tmp32; ASSERT_ALIGNED_DOUBLE; tmp1 = c_re(input[0]); tmp30 = c_im(input[0]); { fftw_real tmp2; fftw_real tmp3; fftw_real tmp12; fftw_real tmp13; ASSERT_ALIGNED_DOUBLE; tmp2 = c_re(input[istride]); tmp3 = c_re(input[6 * istride]); tmp4 = tmp2 + tmp3; tmp26 = tmp3 - tmp2; tmp12 = c_im(input[istride]); tmp13 = c_im(input[6 * istride]); tmp14 = tmp12 - tmp13; tmp33 = tmp12 + tmp13; } { fftw_real tmp5; fftw_real tmp6; fftw_real tmp18; fftw_real tmp19; ASSERT_ALIGNED_DOUBLE; tmp5 = c_re(input[2 * istride]); tmp6 = c_re(input[5 * istride]); tmp7 = tmp5 + tmp6; tmp28 = tmp6 - tmp5; tmp18 = c_im(input[2 * istride]); tmp19 = c_im(input[5 * istride]); tmp20 = tmp18 - tmp19; tmp31 = tmp18 + tmp19; } { fftw_real tmp8; fftw_real tmp9; fftw_real tmp15; fftw_real tmp16; ASSERT_ALIGNED_DOUBLE; tmp8 = c_re(input[3 * istride]); tmp9 = c_re(input[4 * istride]); tmp10 = tmp8 + tmp9; tmp27 = tmp9 - tmp8; tmp15 = c_im(input[3 * istride]); tmp16 = c_im(input[4 * istride]); tmp17 = tmp15 - tmp16; tmp32 = tmp15 + tmp16; } { fftw_real tmp23; fftw_real tmp22; fftw_real tmp35; fftw_real tmp36; ASSERT_ALIGNED_DOUBLE; c_re(output[0]) = tmp1 + tmp4 + tmp7 + tmp10; tmp23 = (K781831482 * tmp14) + (K974927912 * tmp20) + (K433883739 * tmp17); tmp22 = tmp1 + (K623489801 * tmp4) - (K900968867 * tmp10) - (K222520933 * tmp7); c_re(output[6 * ostride]) = tmp22 - tmp23; c_re(output[ostride]) = tmp22 + tmp23; { fftw_real tmp25; fftw_real tmp24; fftw_real tmp21; fftw_real tmp11; ASSERT_ALIGNED_DOUBLE; tmp25 = (K433883739 * tmp14) + (K974927912 * tmp17) - (K781831482 * tmp20); tmp24 = tmp1 + (K623489801 * tmp7) - (K222520933 * tmp10) - (K900968867 * tmp4); c_re(output[4 * ostride]) = tmp24 - tmp25; c_re(output[3 * ostride]) = tmp24 + tmp25; tmp21 = (K974927912 * tmp14) - (K781831482 * tmp17) - (K433883739 * tmp20); tmp11 = tmp1 + (K623489801 * tmp10) - (K900968867 * tmp7) - (K222520933 * tmp4); c_re(output[5 * ostride]) = tmp11 - tmp21; c_re(output[2 * ostride]) = tmp11 + tmp21; } c_im(output[0]) = tmp30 + tmp33 + tmp31 + tmp32; tmp35 = (K781831482 * tmp26) + (K974927912 * tmp28) + (K433883739 * tmp27); tmp36 = tmp30 + (K623489801 * tmp33) - (K900968867 * tmp32) - (K222520933 * tmp31); c_im(output[ostride]) = tmp35 + tmp36; c_im(output[6 * ostride]) = tmp36 - tmp35; { fftw_real tmp29; fftw_real tmp34; fftw_real tmp37; fftw_real tmp38; ASSERT_ALIGNED_DOUBLE; tmp29 = (K433883739 * tmp26) + (K974927912 * tmp27) - (K781831482 * tmp28); tmp34 = tmp30 + (K623489801 * tmp31) - (K222520933 * tmp32) - (K900968867 * tmp33); c_im(output[3 * ostride]) = tmp29 + tmp34; c_im(output[4 * ostride]) = tmp34 - tmp29; tmp37 = (K974927912 * tmp26) - (K781831482 * tmp27) - (K433883739 * tmp28); tmp38 = tmp30 + (K623489801 * tmp32) - (K900968867 * tmp31) - (K222520933 * tmp33); c_im(output[2 * ostride]) = tmp37 + tmp38; c_im(output[5 * ostride]) = tmp38 - tmp37; } } } fftw_codelet_desc fftw_no_twiddle_7_desc = { "fftw_no_twiddle_7", (void (*)()) fftw_no_twiddle_7, 7, FFTW_FORWARD, FFTW_NOTW, 155, 0, (const int *) 0, };