3 * Copyright 2004 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
23 // WARNING: this file is machine generated. Edits will be over written
29 #include <gr_multiply_vff.h>
30 #include <gr_io_signature.h>
33 gr_make_multiply_vff (size_t nitems_per_block)
35 return gr_multiply_vff_sptr (new gr_multiply_vff (nitems_per_block));
38 gr_multiply_vff::gr_multiply_vff (size_t nitems_per_block)
39 : gr_sync_block ("multiply_vff",
40 gr_make_io_signature (1, -1, sizeof (float)*nitems_per_block),
41 gr_make_io_signature (1, 1, sizeof (float)*nitems_per_block))
46 gr_multiply_vff::work (int noutput_items,
47 gr_vector_const_void_star &input_items,
48 gr_vector_void_star &output_items)
50 float *optr = (float *) output_items[0];
52 int ninputs = input_items.size ();
53 int nitems_per_block = output_signature()->sizeof_stream_item(0)/sizeof(float);
55 for (int i = 0; i < noutput_items; i++){
56 for (int j = 0; j < nitems_per_block; j++){
57 float acc = ((float *) input_items[0])[i*nitems_per_block+j];
58 for (int k = 1; k < ninputs; k++)
59 acc *= ((float *) input_items[k])[i*nitems_per_block+j];
61 *optr++ = (float) acc;