ref: 7592cc985f084dbfab7f941100d1f09b33a43e22
dir: /libfaad/fftw/fni_6.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 20:44:04 EST 1999 */ #include <fftw-int.h> #include <fftw.h> /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -notwiddleinv 6 */ /* * This function contains 36 FP additions, 8 FP multiplications, * (or, 32 additions, 4 multiplications, 4 fused multiply/add), * 20 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: fni_6.c,v 1.1 2002/04/07 21:26:04 menno Exp $ * $Id: fni_6.c,v 1.1 2002/04/07 21:26:04 menno Exp $ * $Id: fni_6.c,v 1.1 2002/04/07 21:26:04 menno Exp $ */ void fftwi_no_twiddle_6(const fftw_complex *input, fftw_complex *output, int istride, int ostride) { fftw_real tmp3; fftw_real tmp11; fftw_real tmp26; fftw_real tmp29; fftw_real tmp6; fftw_real tmp12; fftw_real tmp9; fftw_real tmp13; fftw_real tmp10; fftw_real tmp14; fftw_real tmp18; fftw_real tmp31; fftw_real tmp21; fftw_real tmp30; fftw_real tmp27; fftw_real tmp32; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp1; fftw_real tmp2; fftw_real tmp24; fftw_real tmp25; ASSERT_ALIGNED_DOUBLE; tmp1 = c_re(input[0]); tmp2 = c_re(input[3 * istride]); tmp3 = tmp1 - tmp2; tmp11 = tmp1 + tmp2; tmp24 = c_im(input[0]); tmp25 = c_im(input[3 * istride]); tmp26 = tmp24 - tmp25; tmp29 = tmp24 + tmp25; } { fftw_real tmp4; fftw_real tmp5; fftw_real tmp7; fftw_real tmp8; ASSERT_ALIGNED_DOUBLE; tmp4 = c_re(input[2 * istride]); tmp5 = c_re(input[5 * istride]); tmp6 = tmp4 - tmp5; tmp12 = tmp4 + tmp5; tmp7 = c_re(input[4 * istride]); tmp8 = c_re(input[istride]); tmp9 = tmp7 - tmp8; tmp13 = tmp7 + tmp8; } tmp10 = tmp6 + tmp9; tmp14 = tmp12 + tmp13; { fftw_real tmp16; fftw_real tmp17; fftw_real tmp19; fftw_real tmp20; ASSERT_ALIGNED_DOUBLE; tmp16 = c_im(input[4 * istride]); tmp17 = c_im(input[istride]); tmp18 = tmp16 - tmp17; tmp31 = tmp16 + tmp17; tmp19 = c_im(input[2 * istride]); tmp20 = c_im(input[5 * istride]); tmp21 = tmp19 - tmp20; tmp30 = tmp19 + tmp20; } tmp27 = tmp21 + tmp18; tmp32 = tmp30 + tmp31; { fftw_real tmp15; fftw_real tmp22; fftw_real tmp35; fftw_real tmp36; ASSERT_ALIGNED_DOUBLE; c_re(output[3 * ostride]) = tmp3 + tmp10; tmp15 = tmp3 - (K500000000 * tmp10); tmp22 = K866025403 * (tmp18 - tmp21); c_re(output[5 * ostride]) = tmp15 - tmp22; c_re(output[ostride]) = tmp15 + tmp22; c_re(output[0]) = tmp11 + tmp14; tmp35 = tmp11 - (K500000000 * tmp14); tmp36 = K866025403 * (tmp31 - tmp30); c_re(output[2 * ostride]) = tmp35 - tmp36; c_re(output[4 * ostride]) = tmp35 + tmp36; } { fftw_real tmp23; fftw_real tmp28; fftw_real tmp33; fftw_real tmp34; ASSERT_ALIGNED_DOUBLE; c_im(output[3 * ostride]) = tmp26 + tmp27; tmp23 = K866025403 * (tmp6 - tmp9); tmp28 = tmp26 - (K500000000 * tmp27); c_im(output[ostride]) = tmp23 + tmp28; c_im(output[5 * ostride]) = tmp28 - tmp23; c_im(output[0]) = tmp29 + tmp32; tmp33 = tmp29 - (K500000000 * tmp32); tmp34 = K866025403 * (tmp12 - tmp13); c_im(output[2 * ostride]) = tmp33 - tmp34; c_im(output[4 * ostride]) = tmp34 + tmp33; } } fftw_codelet_desc fftwi_no_twiddle_6_desc = { "fftwi_no_twiddle_6", (void (*)()) fftwi_no_twiddle_6, 6, FFTW_BACKWARD, FFTW_NOTW, 144, 0, (const int *) 0, };