X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=gnuradio-core%2Fsrc%2Flib%2Fgengen%2Fgr_sub_ss.cc;fp=gnuradio-core%2Fsrc%2Flib%2Fgengen%2Fgr_sub_ss.cc;h=d3837c253ecad0c54dd9f56cae5521a086bd71b4;hb=ea29b08aeb54227e6628f655ccfdb96fe4d8c378;hp=0000000000000000000000000000000000000000;hpb=09a1e803a9e6587c78d20cdf16891e5295874668;p=debian%2Fgnuradio diff --git a/gnuradio-core/src/lib/gengen/gr_sub_ss.cc b/gnuradio-core/src/lib/gengen/gr_sub_ss.cc new file mode 100644 index 00000000..d3837c25 --- /dev/null +++ b/gnuradio-core/src/lib/gengen/gr_sub_ss.cc @@ -0,0 +1,71 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004, 2009 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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 3, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +// WARNING: this file is machine generated. Edits will be over written + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include + +gr_sub_ss_sptr +gr_make_sub_ss (size_t vlen) +{ + return gr_sub_ss_sptr (new gr_sub_ss (vlen)); +} + +gr_sub_ss::gr_sub_ss (size_t vlen) + : gr_sync_block ("sub_ss", + gr_make_io_signature (1, -1, sizeof (short)*vlen), + gr_make_io_signature (1, 1, sizeof (short)*vlen)), + d_vlen (vlen) +{ +} + +int +gr_sub_ss::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + short *optr = (short *) output_items[0]; + + int ninputs = input_items.size (); + + if (ninputs == 1){ // negate + for (int i = 0; i < noutput_items*d_vlen; i++) + *optr++ = (short) -((short *) input_items[0])[i]; + } + + else { + for (int i = 0; i < noutput_items*d_vlen; i++){ + short acc = ((short *) input_items[0])[i]; + for (int j = 1; j < ninputs; j++) + acc -= ((short *) input_items[j])[i]; + + *optr++ = (short) acc; + } + } + + return noutput_items; +}