/*!
 *
 * Copyright (c) 2019-2024 Diality Inc. - All Rights Reserved.
 * \copyright
 * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
 * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
 *
 * \file    types.cpp
 * \author  (last)      Behrouz NematiPour
 * \date    (last)      28-Mar-2023
 * \author  (original)  Behrouz NematiPour
 * \date    (original)  26-Dec-2019
 *
 */
#include "types.h"

// Qt

// Project

/*!
 * \brief   Types::floatCompare
 * \details compares two floats with a tolerance.
 * \param   f1 - float value 1
 * \param   f2 - float value 2
 * \return  true if (almost) equal
 */
bool Types::floatCompare(float f1, float f2) {
    static constexpr auto epsilon = 1.0e-05f;
    if (qAbs(f1 - f2) <= epsilon)
        return true;
    return qAbs(f1 - f2) <= epsilon * qMax(qAbs(f1), qAbs(f2));
}

/*!
 * \brief   Types::getBits
 * \details converts the array of byte to array of bits
 * \param   vData       - the array of bytes
 * \param   vStartIndex - start index of the array to be used for conversion
 * \param   vFlags      - the array of bits
 * \param   vLen        - the amounts of bits to be converted
 * \return  false if there is not enough data available from start index vStartIndex to the length of vLen.
 */
bool Types::getBits(const QByteArray &vData, int &vStartIndex, QBitArray &vFlags, int vLen) {
    vFlags.clear();
    QByteArray data = vData.mid(vStartIndex, vLen);
    quint8 bytes = vLen / 8;
    vStartIndex  = vLen % 8 ? bytes + 1 : bytes ; //CEILING DIVISION TO ROUND UP TO LATEST BIT
    if ( data.length() * 8 < vLen )
        return false;
    vFlags = QBitArray::fromBits(data, vLen);
    return true;
}