From 30755b92afeae5a5a32860b4f4297180f6d3398d Mon Sep 17 00:00:00 2001 From: John Glover Date: Mon, 18 Oct 2010 17:32:05 +0100 Subject: Moved project over to Git --- sndobj/rfftw/frc_16.c | 218 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 218 insertions(+) create mode 100644 sndobj/rfftw/frc_16.c (limited to 'sndobj/rfftw/frc_16.c') diff --git a/sndobj/rfftw/frc_16.c b/sndobj/rfftw/frc_16.c new file mode 100644 index 0000000..fc4c6ba --- /dev/null +++ b/sndobj/rfftw/frc_16.c @@ -0,0 +1,218 @@ +/* + * 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 16 */ + +/* + * This function contains 58 FP additions, 12 FP multiplications, + * (or, 54 additions, 8 multiplications, 4 fused multiply/add), + * 30 stack variables, and 32 memory accesses + */ +static const fftw_real K707106781 = FFTW_KONST(+0.707106781186547524400844362104849039284835938); +static const fftw_real K923879532 = FFTW_KONST(+0.923879532511286756128183189396788286822416626); +static const fftw_real K382683432 = FFTW_KONST(+0.382683432365089771728459984030398866761344562); + +/* + * Generator Id's : + * $Id: frc_16.c,v 1.1.1.1 2006/05/12 15:14:55 veplaini Exp $ + * $Id: frc_16.c,v 1.1.1.1 2006/05/12 15:14:55 veplaini Exp $ + * $Id: frc_16.c,v 1.1.1.1 2006/05/12 15:14:55 veplaini Exp $ + */ + +void fftw_real2hc_16(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 tmp6; + fftw_real tmp7; + fftw_real tmp35; + fftw_real tmp18; + fftw_real tmp33; + fftw_real tmp40; + fftw_real tmp48; + fftw_real tmp56; + fftw_real tmp10; + fftw_real tmp13; + fftw_real tmp14; + fftw_real tmp36; + fftw_real tmp17; + fftw_real tmp26; + fftw_real tmp41; + fftw_real tmp51; + fftw_real tmp57; + fftw_real tmp16; + fftw_real tmp15; + fftw_real tmp43; + fftw_real tmp44; + ASSERT_ALIGNED_DOUBLE; + { + fftw_real tmp1; + fftw_real tmp2; + fftw_real tmp4; + fftw_real tmp5; + ASSERT_ALIGNED_DOUBLE; + tmp1 = input[0]; + tmp2 = input[8 * istride]; + tmp3 = tmp1 + tmp2; + tmp4 = input[4 * istride]; + tmp5 = input[12 * istride]; + tmp6 = tmp4 + tmp5; + tmp7 = tmp3 + tmp6; + tmp35 = tmp1 - tmp2; + tmp18 = tmp4 - tmp5; + } + { + fftw_real tmp29; + fftw_real tmp46; + fftw_real tmp32; + fftw_real tmp47; + ASSERT_ALIGNED_DOUBLE; + { + fftw_real tmp27; + fftw_real tmp28; + fftw_real tmp30; + fftw_real tmp31; + ASSERT_ALIGNED_DOUBLE; + tmp27 = input[istride]; + tmp28 = input[9 * istride]; + tmp29 = tmp27 - tmp28; + tmp46 = tmp27 + tmp28; + tmp30 = input[5 * istride]; + tmp31 = input[13 * istride]; + tmp32 = tmp30 - tmp31; + tmp47 = tmp30 + tmp31; + } + tmp33 = (K382683432 * tmp29) + (K923879532 * tmp32); + tmp40 = (K923879532 * tmp29) - (K382683432 * tmp32); + tmp48 = tmp46 - tmp47; + tmp56 = tmp46 + tmp47; + } + { + fftw_real tmp8; + fftw_real tmp9; + fftw_real tmp11; + fftw_real tmp12; + ASSERT_ALIGNED_DOUBLE; + tmp8 = input[2 * istride]; + tmp9 = input[10 * istride]; + tmp10 = tmp8 + tmp9; + tmp16 = tmp8 - tmp9; + tmp11 = input[14 * istride]; + tmp12 = input[6 * istride]; + tmp13 = tmp11 + tmp12; + tmp15 = tmp11 - tmp12; + } + tmp14 = tmp10 + tmp13; + tmp36 = K707106781 * (tmp16 + tmp15); + tmp17 = K707106781 * (tmp15 - tmp16); + { + fftw_real tmp22; + fftw_real tmp49; + fftw_real tmp25; + fftw_real tmp50; + ASSERT_ALIGNED_DOUBLE; + { + fftw_real tmp20; + fftw_real tmp21; + fftw_real tmp23; + fftw_real tmp24; + ASSERT_ALIGNED_DOUBLE; + tmp20 = input[15 * istride]; + tmp21 = input[7 * istride]; + tmp22 = tmp20 - tmp21; + tmp49 = tmp20 + tmp21; + tmp23 = input[3 * istride]; + tmp24 = input[11 * istride]; + tmp25 = tmp23 - tmp24; + tmp50 = tmp23 + tmp24; + } + tmp26 = (K382683432 * tmp22) - (K923879532 * tmp25); + tmp41 = (K923879532 * tmp22) + (K382683432 * tmp25); + tmp51 = tmp49 - tmp50; + tmp57 = tmp49 + tmp50; + } + { + fftw_real tmp55; + fftw_real tmp58; + fftw_real tmp53; + fftw_real tmp54; + ASSERT_ALIGNED_DOUBLE; + real_output[4 * real_ostride] = tmp7 - tmp14; + tmp55 = tmp7 + tmp14; + tmp58 = tmp56 + tmp57; + real_output[8 * real_ostride] = tmp55 - tmp58; + real_output[0] = tmp55 + tmp58; + imag_output[4 * imag_ostride] = tmp57 - tmp56; + tmp53 = tmp13 - tmp10; + tmp54 = K707106781 * (tmp51 - tmp48); + imag_output[2 * imag_ostride] = tmp53 + tmp54; + imag_output[6 * imag_ostride] = tmp54 - tmp53; + } + { + fftw_real tmp45; + fftw_real tmp52; + fftw_real tmp39; + fftw_real tmp42; + ASSERT_ALIGNED_DOUBLE; + tmp45 = tmp3 - tmp6; + tmp52 = K707106781 * (tmp48 + tmp51); + real_output[6 * real_ostride] = tmp45 - tmp52; + real_output[2 * real_ostride] = tmp45 + tmp52; + tmp39 = tmp35 + tmp36; + tmp42 = tmp40 + tmp41; + real_output[7 * real_ostride] = tmp39 - tmp42; + real_output[real_ostride] = tmp39 + tmp42; + } + tmp43 = tmp18 + tmp17; + tmp44 = tmp41 - tmp40; + imag_output[3 * imag_ostride] = tmp43 + tmp44; + imag_output[5 * imag_ostride] = tmp44 - tmp43; + { + fftw_real tmp19; + fftw_real tmp34; + fftw_real tmp37; + fftw_real tmp38; + ASSERT_ALIGNED_DOUBLE; + tmp19 = tmp17 - tmp18; + tmp34 = tmp26 - tmp33; + imag_output[imag_ostride] = tmp19 + tmp34; + imag_output[7 * imag_ostride] = tmp34 - tmp19; + tmp37 = tmp35 - tmp36; + tmp38 = tmp33 + tmp26; + real_output[5 * real_ostride] = tmp37 - tmp38; + real_output[3 * real_ostride] = tmp37 + tmp38; + } +} + +fftw_codelet_desc fftw_real2hc_16_desc = +{ + "fftw_real2hc_16", + (void (*)()) fftw_real2hc_16, + 16, + FFTW_FORWARD, + FFTW_REAL2HC, + 354, + 0, + (const int *) 0, +}; -- cgit v1.2.3