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/* -*- c++ -*- */
/*
* Copyright 2008 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
//#define MSDD_DEBUG2_TRUE
#ifdef MSDD_DEBUG2_TRUE
#include <iostream>
#define MSDD_DEBUG2(x) std::cout << x << std::endl;
#else
#define MSDD_DEBUG2(x)
#endif
#include <msdd_source_c.h>
#include <gr_io_signature.h>
namespace {
static const int NBASIC_SAMPLES_PER_ITEM = 2; // I & Q
};
msdd_source_c_sptr
msdd_make_source_c (int which_board,
int opp_mode,
const char *src,
unsigned short port_src
) throw (std::runtime_error)
{
return msdd_source_c_sptr (new msdd_source_c (
which_board,
opp_mode,
src,
port_src
));
}
msdd_source_c::msdd_source_c (int which_board,
int opp_mode,
const char *src,
unsigned short port_src
) throw (std::runtime_error)
: msdd_source_base ("msdd_source_c",
gr_make_io_signature (1, 1, 2 * sizeof (int)),
which_board, opp_mode, src, port_src
)
{
switch (sizeof_basic_sample()) {
case 4:
d_buffer_copy_behavior.reset(
new msdd::BufferCopyBehaviorComplex <short> ());
break;
default:
assert(false);
}
}
msdd_source_c::~msdd_source_c ()
{
}
int
msdd_source_c::ninput_bytes_reqd_for_noutput_items (int noutput_items)
{
return noutput_items * NBASIC_SAMPLES_PER_ITEM * sizeof_basic_sample();
}
/*
* Copy 8 bit fft from mdss buffer into output buffer
*/
void
msdd_source_c::copy_from_msdd_buffer (gr_vector_void_star &output_items,
int output_index,
int output_items_available,
int &output_items_produced,
const void *msdd_buffer,
int buffer_length,
int &bytes_read)
{
unsigned nmsdd_bytes_per_item = NBASIC_SAMPLES_PER_ITEM * sizeof_basic_sample();
unsigned int nitems = std::min (output_items_available,
(int)(buffer_length / nmsdd_bytes_per_item));
(*d_buffer_copy_behavior.get())(output_items, msdd_buffer, output_index, nitems);
output_items_produced = nitems;
bytes_read = nitems * nmsdd_bytes_per_item;
}
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