BitReaderWriter.h

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/* Copyright 2013-2019 Homegear GmbH
 *
 * libhomegear-base is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * libhomegear-base 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with libhomegear-base.  If not, see
 * <http://www.gnu.org/licenses/>.
 *
 * In addition, as a special exception, the copyright holders give
 * permission to link the code of portions of this program with the
 * OpenSSL library under certain conditions as described in each
 * individual source file, and distribute linked combinations
 * including the two.
 * You must obey the GNU Lesser General Public License in all respects
 * for all of the code used other than OpenSSL.  If you modify
 * file(s) with this exception, you may extend this exception to your
 * version of the file(s), but you are not obligated to do so.  If you
 * do not wish to do so, delete this exception statement from your
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 * files in the program, then also delete it here.
*/

#ifndef BITREADERWRITER_H_
#define BITREADERWRITER_H_

#include <vector>
#include <cstdint>

namespace BaseLib
{

class BitReaderWriter
{
public:
    virtual ~BitReaderWriter();

    static std::vector<uint8_t> getPosition(const std::vector<uint8_t>& data, uint32_t position, uint32_t size);

    static std::vector<uint8_t> getPosition(const std::vector<char>& data, uint32_t position, uint32_t size);

    static uint8_t getPosition8(const std::vector<uint8_t>& data, uint32_t position, uint32_t size);

    static uint16_t getPosition16(const std::vector<uint8_t>& data, uint32_t position, uint32_t size);

    static uint32_t getPosition32(const std::vector<uint8_t>& data, uint32_t position, uint32_t size);

    static uint64_t getPosition64(const std::vector<uint8_t>& data, uint32_t position, uint32_t size);

    static void setPositionLE(uint32_t position, uint32_t size, std::vector<uint8_t>& target, const std::vector<uint8_t>& source);

    static void setPositionLE(uint32_t position, uint32_t size, std::vector<char>& target, const std::vector<uint8_t>& source);

    static void setPositionBE(uint32_t position, uint32_t size, std::vector<uint8_t>& target, const std::vector<uint8_t>& source);

    static void setPositionBE(uint32_t position, uint32_t size, std::vector<char>& target, const std::vector<uint8_t>& source);
private:
    static const uint8_t _bitMaskGet[8];
    static const uint8_t _bitMaskSetSource[9];
    static const uint8_t _bitMaskSetTargetStart[8];
    static const uint8_t _bitMaskSetTargetEnd[8];

    BitReaderWriter();
};

}
#endif