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/* -*- c++ -*- */
/*
* Copyright 2014 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <gnuradio/blocks/pack_k_bits.h>
#include <iostream>
#include <stdexcept>
namespace gr {
namespace blocks {
namespace kernel {
pack_k_bits::pack_k_bits(unsigned k) : d_k(k)
{
if (d_k == 0)
throw std::out_of_range("pack_k_bits: k must be > 0");
}
pack_k_bits::~pack_k_bits() {}
void pack_k_bits::pack(unsigned char* bytes, const unsigned char* bits, int nbytes) const
{
for (int i = 0; i < nbytes; i++) {
bytes[i] = 0x00;
for (unsigned int j = 0; j < d_k; j++) {
bytes[i] |= (0x01 & bits[i * d_k + j]) << (d_k - j - 1);
}
}
}
void pack_k_bits::pack_rev(unsigned char* bytes,
const unsigned char* bits,
int nbytes) const
{
for (int i = 0; i < nbytes; i++) {
bytes[i] = 0x00;
for (unsigned int j = 0; j < d_k; j++) {
bytes[i] |= (0x01 & bits[i * d_k + j]) << j;
}
}
}
} /* namespace kernel */
} /* namespace blocks */
} /* namespace gr */
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