/* * 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 20:43:58 EST 1999 */ #include #include /* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -real2hc 15 */ /* * This function contains 64 FP additions, 25 FP multiplications, * (or, 50 additions, 11 multiplications, 14 fused multiply/add), * 40 stack variables, and 30 memory accesses */ static const fftw_real K509036960 = FFTW_KONST(+0.509036960455127183450980863393907648510733164); static const fftw_real K823639103 = FFTW_KONST(+0.823639103546331925877420039278190003029660514); static const fftw_real K250000000 = FFTW_KONST(+0.250000000000000000000000000000000000000000000); static const fftw_real K559016994 = FFTW_KONST(+0.559016994374947424102293417182819058860154590); static const fftw_real K587785252 = FFTW_KONST(+0.587785252292473129168705954639072768597652438); static const fftw_real K951056516 = FFTW_KONST(+0.951056516295153572116439333379382143405698634); static const fftw_real K484122918 = FFTW_KONST(+0.484122918275927110647408174972799951354115213); static const fftw_real K216506350 = FFTW_KONST(+0.216506350946109661690930792688234045867850657); static const fftw_real K866025403 = FFTW_KONST(+0.866025403784438646763723170752936183471402627); static const fftw_real K500000000 = FFTW_KONST(+0.500000000000000000000000000000000000000000000); /* * Generator Id's : * $Id: exprdag.ml,v 1.41 1999/05/26 15:44:14 fftw Exp $ * $Id: fft.ml,v 1.43 1999/05/17 19:44:18 fftw Exp $ * $Id: to_c.ml,v 1.25 1999/10/26 21:41:32 stevenj Exp $ */ void fftw_real2hc_15(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride) { fftw_real tmp3; fftw_real tmp53; fftw_real tmp47; fftw_real tmp39; fftw_real tmp40; fftw_real tmp10; fftw_real tmp17; fftw_real tmp18; fftw_real tmp57; fftw_real tmp58; fftw_real tmp59; fftw_real tmp31; fftw_real tmp34; fftw_real tmp43; fftw_real tmp54; fftw_real tmp55; fftw_real tmp56; fftw_real tmp24; fftw_real tmp27; fftw_real tmp42; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp45; fftw_real tmp1; fftw_real tmp2; fftw_real tmp46; ASSERT_ALIGNED_DOUBLE; tmp45 = input[0]; tmp1 = input[10 * istride]; tmp2 = input[5 * istride]; tmp46 = tmp2 + tmp1; tmp3 = tmp1 - tmp2; tmp53 = tmp45 + tmp46; tmp47 = tmp45 - (K500000000 * tmp46); } { fftw_real tmp22; fftw_real tmp29; fftw_real tmp32; fftw_real tmp6; fftw_real tmp23; fftw_real tmp25; fftw_real tmp16; fftw_real tmp33; fftw_real tmp9; fftw_real tmp26; fftw_real tmp13; fftw_real tmp30; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp4; fftw_real tmp5; fftw_real tmp14; fftw_real tmp15; ASSERT_ALIGNED_DOUBLE; tmp22 = input[3 * istride]; tmp29 = input[6 * istride]; tmp32 = input[9 * istride]; tmp4 = input[13 * istride]; tmp5 = input[8 * istride]; tmp6 = tmp4 - tmp5; tmp23 = tmp5 + tmp4; tmp25 = input[12 * istride]; tmp14 = input[4 * istride]; tmp15 = input[14 * istride]; tmp16 = tmp14 - tmp15; tmp33 = tmp15 + tmp14; { fftw_real tmp7; fftw_real tmp8; fftw_real tmp11; fftw_real tmp12; ASSERT_ALIGNED_DOUBLE; tmp7 = input[7 * istride]; tmp8 = input[2 * istride]; tmp9 = tmp7 - tmp8; tmp26 = tmp8 + tmp7; tmp11 = input[istride]; tmp12 = input[11 * istride]; tmp13 = tmp11 - tmp12; tmp30 = tmp12 + tmp11; } } tmp39 = tmp6 - tmp9; tmp40 = tmp13 - tmp16; tmp10 = tmp6 + tmp9; tmp17 = tmp13 + tmp16; tmp18 = tmp10 + tmp17; tmp57 = tmp29 + tmp30; tmp58 = tmp32 + tmp33; tmp59 = tmp57 + tmp58; tmp31 = tmp29 - (K500000000 * tmp30); tmp34 = tmp32 - (K500000000 * tmp33); tmp43 = tmp31 + tmp34; tmp54 = tmp22 + tmp23; tmp55 = tmp25 + tmp26; tmp56 = tmp54 + tmp55; tmp24 = tmp22 - (K500000000 * tmp23); tmp27 = tmp25 - (K500000000 * tmp26); tmp42 = tmp24 + tmp27; } imag_output[5 * imag_ostride] = -(K866025403 * (tmp3 + tmp18)); { fftw_real tmp21; fftw_real tmp37; fftw_real tmp36; fftw_real tmp38; ASSERT_ALIGNED_DOUBLE; { fftw_real tmp19; fftw_real tmp20; fftw_real tmp28; fftw_real tmp35; ASSERT_ALIGNED_DOUBLE; tmp19 = (K866025403 * tmp3) - (K216506350 * tmp18); tmp20 = K484122918 * (tmp10 - tmp17); tmp21 = tmp19 + tmp20; tmp37 = tmp20 - tmp19; tmp28 = tmp24 - tmp27; tmp35 = tmp31 - tmp34; tmp36 = (K951056516 * tmp28) + (K587785252 * tmp35); tmp38 = (K951056516 * tmp35) - (K587785252 * tmp28); } imag_output[imag_ostride] = tmp21 - tmp36; imag_output[4 * imag_ostride] = tmp21 + tmp36; imag_output[2 * imag_ostride] = tmp37 + tmp38; imag_output[7 * imag_ostride] = tmp38 - tmp37; } { fftw_real tmp63; fftw_real tmp64; fftw_real tmp62; fftw_real tmp60; fftw_real tmp61; ASSERT_ALIGNED_DOUBLE; tmp63 = tmp54 - tmp55; tmp64 = tmp57 - tmp58; imag_output[3 * imag_ostride] = (K587785252 * tmp63) - (K951056516 * tmp64); imag_output[6 * imag_ostride] = -((K951056516 * tmp63) + (K587785252 * tmp64)); tmp62 = K559016994 * (tmp56 - tmp59); tmp60 = tmp56 + tmp59; tmp61 = tmp53 - (K250000000 * tmp60); real_output[3 * real_ostride] = tmp61 - tmp62; real_output[6 * real_ostride] = tmp62 + tmp61; real_output[0] = tmp53 + tmp60; { fftw_real tmp41; fftw_real tmp52; fftw_real tmp44; fftw_real tmp48; fftw_real tmp49; fftw_real tmp51; fftw_real tmp50; ASSERT_ALIGNED_DOUBLE; tmp41 = (K823639103 * tmp39) + (K509036960 * tmp40); tmp52 = (K509036960 * tmp39) - (K823639103 * tmp40); tmp44 = K559016994 * (tmp42 - tmp43); tmp48 = tmp42 + tmp43; tmp49 = tmp47 - (K250000000 * tmp48); real_output[5 * real_ostride] = tmp47 + tmp48; tmp51 = tmp49 - tmp44; real_output[2 * real_ostride] = tmp51 - tmp52; real_output[7 * real_ostride] = tmp52 + tmp51; tmp50 = tmp44 + tmp49; real_output[real_ostride] = tmp41 + tmp50; real_output[4 * real_ostride] = tmp50 - tmp41; } } } fftw_codelet_desc fftw_real2hc_15_desc = { "fftw_real2hc_15", (void (*)()) fftw_real2hc_15, 15, FFTW_FORWARD, FFTW_REAL2HC, 332, 0, (const int *) 0, };