/* -*- c++ -*- */
/*
 * Copyright 2006,2013,2018 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.
 */


#ifndef PACKED_TO_UNPACKED_IMPL_H
#define PACKED_TO_UNPACKED_IMPL_H

#include <gnuradio/blocks/log2_const.h>
#include <gnuradio/blocks/packed_to_unpacked.h>

namespace gr {
namespace blocks {

template <class T>
class packed_to_unpacked_impl : public packed_to_unpacked<T>
{
private:
    unsigned int d_bits_per_chunk;
    endianness_t d_endianness;
    unsigned int d_index;
    const unsigned int d_bits_per_type = sizeof(T) * 8;
    const unsigned int d_log2_l_type = log2_const<sizeof(T) * 8>();
    unsigned int get_bit_le(const T* in_vector, unsigned int bit_addr);
    unsigned int get_bit_be(const T* in_vector, unsigned int bit_addr);

public:
    packed_to_unpacked_impl(unsigned int bits_per_chunk, endianness_t endianness);
    ~packed_to_unpacked_impl();

    void forecast(int noutput_items, gr_vector_int& ninput_items_required);
    int general_work(int noutput_items,
                     gr_vector_int& ninput_items,
                     gr_vector_const_void_star& input_items,
                     gr_vector_void_star& output_items);

    bool check_topology(int ninputs, int noutputs) { return ninputs == noutputs; }
};

} /* namespace blocks */
} /* namespace gr */

#endif /* PACKED_TO_UNPACKED_IMPL_H */