/* -*- 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_s.h>

#include <gr_io_signature.h>

namespace {

  static const int NBASIC_SAMPLES_PER_ITEM = 1;

}

msdd_source_s_sptr

msdd_make_source_s (int which_board, 

                    unsigned int decim_rate,

                    unsigned int fft_points,

                    double initial_rx_freq,

                    int opp_mode,

                    const char *src, 

                    unsigned short port_src

                    ) throw (std::runtime_error)

{

  return msdd_source_s_sptr (new msdd_source_s (which_board,

                                                decim_rate,

                                                fft_points,

                                                initial_rx_freq,

                                                opp_mode,

                                                src,

                                                port_src

                                                ));

}

msdd_source_s::msdd_source_s (int which_board,

                              unsigned int decim_rate,

                              unsigned int fft_points,

                              double initial_rx_freq,

                              int opp_mode,

                              const char *src, 

                              unsigned short port_src

                              ) throw (std::runtime_error)

  : msdd_source_base ("msdd_source_s",

                      gr_make_io_signature (1, 1, sizeof (int)),

                      which_board, opp_mode, src, port_src

                      )

{

  switch (sizeof_basic_sample()) {

  case 1:

       d_buffer_copy_behavior.reset(

        new msdd::BufferCopyBehaviorGeneric<short, unsigned char>());

    break;

  case 2:

       d_buffer_copy_behavior.reset(

               new msdd::BufferCopyBehaviorGeneric<short, float>());

    break;

  case 4:

       d_buffer_copy_behavior.reset(

               new msdd::BufferCopyBehaviorGeneric<short, int>());

    break;

  default:

       assert(false);

  }

}

msdd_source_s::~msdd_source_s ()

{

}

int

msdd_source_s::ninput_bytes_reqd_for_noutput_items (int noutput_items)

{

  return noutput_items * NBASIC_SAMPLES_PER_ITEM * sizeof_basic_sample();

}

void

msdd_source_s::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)

{

  MSDD_DEBUG2("copy_from_msdd_buffer: output_index: " << output_index << " output_items_available: " << output_items_available << " buflen: " << buffer_length)

   unsigned nmsdd_bytes_per_item 

    (msdd_source_s::ninput_bytes_reqd_for_noutput_items(1));

  unsigned int nitems = std::min (output_items_available,

                                  (int)(buffer_length / nmsdd_bytes_per_item));

  MSDD_DEBUG2("copy_from_msdd_buffer: nmsdd_bytes_per_item: " << nmsdd_bytes_per_item << " nitems: " << nitems)

  (*d_buffer_copy_behavior.get())(output_items, msdd_buffer, output_index, nitems);

  output_items_produced = nitems;

  bytes_read = nitems * nmsdd_bytes_per_item;

}