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/* -*- c++ -*- */
/*
* Copyright 2004,2010 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gr_interleave.h>
#include <gr_io_signature.h>
#include <string.h>
gr_interleave_sptr
gr_make_interleave (size_t itemsize)
{
return gnuradio::get_initial_sptr(new gr_interleave (itemsize));
}
gr_interleave::gr_interleave (size_t itemsize)
: gr_sync_interpolator ("interleave",
gr_make_io_signature (1, gr_io_signature::IO_INFINITE, itemsize),
gr_make_io_signature (1, 1, itemsize),
1),
d_itemsize (itemsize)
{
}
gr_interleave::~gr_interleave ()
{
// NOP
}
bool
gr_interleave::check_topology (int ninputs, int noutputs)
{
set_interpolation (ninputs);
return true;
}
int
gr_interleave::work (int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
size_t nchan = input_items.size ();
size_t itemsize = d_itemsize;
const char **in = (const char **) &input_items[0];
char *out = (char *) output_items[0];
for (int i = 0; i < noutput_items; i += nchan){
for (unsigned int n = 0; n < nchan; n++){
memcpy (out, in[n], itemsize);
out += itemsize;
in[n] += itemsize;
}
}
return noutput_items;
}
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