tesses-framework/src/Serialization/BitConverter.cpp

#include "TessesFramework/Serialization/BitConverter.hpp"

namespace Tesses::Framework::Serialization
{
    double BitConverter::ToDoubleBits(uint64_t v)
    {
        static_assert(sizeof(double) == sizeof(uint64_t), "double is not the same size as uint64_t");
        double dest=0;
        memcpy(&dest,&v, sizeof(uint64_t));
        return dest;
    }
    uint64_t BitConverter::ToUintBits(double v)
    {
        //as static_assert is compile time we don't need it here
        uint64_t dest = 0;
        memcpy(&dest,&v, sizeof(uint64_t));
        return dest;
    }
    float BitConverter::ToFloatBits(uint32_t v)
    {
        static_assert(sizeof(float) == sizeof(uint32_t), "float is not the same size as uint32_t");
        float dest=0;
        memcpy(&dest,&v, sizeof(uint32_t));
        return dest;
    }
    uint32_t BitConverter::ToUint32Bits(float v)
    {
        //as static_assert is compile time we don't need it here
        uint32_t dest = 0;
        memcpy(&dest,&v, sizeof(uint32_t));
        return dest;
    }
    double BitConverter::ToDoubleBE(uint8_t& b)
    {
        return ToDoubleBits(ToUint64BE(b));
    }
    float BitConverter::ToFloatBE(uint8_t& b)
    {
        return ToFloatBits(ToUint32BE(b));
    }
    uint64_t BitConverter::ToUint64BE(uint8_t& b)
    {
        uint8_t* b2 = &b;
        uint64_t v = 0;
        v |= ((uint64_t)b2[0] << 56);
        v |= ((uint64_t)b2[1] << 48);
        v |= ((uint64_t)b2[2] << 40);
        v |= ((uint64_t)b2[3] << 32);
        v |= ((uint64_t)b2[4] << 24);
        v |= ((uint64_t)b2[5] << 16);
        v |= ((uint64_t)b2[6] << 8);
        v |= (uint64_t)b2[7];
        return v;
    }
    uint32_t BitConverter::ToUint32BE(uint8_t& b)
    {
        uint8_t* b2 = &b;
        uint32_t v = 0;
       
        v |= ((uint32_t)b2[0] << 24);
        v |= ((uint32_t)b2[1] << 16);
        v |= ((uint32_t)b2[2] << 8);
        v |= (uint32_t)b2[3];
        return v;
    }
    uint16_t BitConverter::ToUint16BE(uint8_t& b)
    {
        uint8_t* b2 = &b;
        uint16_t v = 0;
       
        
        v |= ((uint16_t)b2[0] << 8);
        v |= (uint16_t)b2[1];
        return v;
    }
    double BitConverter::ToDoubleLE(uint8_t& b)
    {
        return ToDoubleBits(ToUint64LE(b));
    }
    float BitConverter::ToFloatLE(uint8_t& b)
    {
        return ToFloatBits(ToUint32LE(b));
    }
     uint64_t BitConverter::ToUint64LE(uint8_t& b)
    {
        uint8_t* b2 = &b;
        uint64_t v = 0;
        v |= (uint64_t)b2[0];
        v |= ((uint64_t)b2[1] << 8);
        v |= ((uint64_t)b2[2] << 16);
        v |= ((uint64_t)b2[3] << 24);
        v |= ((uint64_t)b2[4] << 32);
        v |= ((uint64_t)b2[5] << 40);
        v |= ((uint64_t)b2[6] << 48);
        v |= ((uint64_t)b2[7] << 56);
        
        return v;
    }
    uint32_t BitConverter::ToUint32LE(uint8_t& b)
    {
        uint8_t* b2 = &b;
        uint32_t v = 0;
        v |= (uint32_t)b2[0];
        v |= ((uint32_t)b2[1] << 8);
        v |= ((uint32_t)b2[2] << 16);
        v |= ((uint32_t)b2[3] << 24);
        
        return v;
    }
    uint16_t BitConverter::ToUint16LE(uint8_t& b)
    {
        uint8_t* b2 = &b;
        uint16_t v = 0;
       
        v |= (uint16_t)b2[0];
        v |= ((uint16_t)b2[1] << 8);
        
        return v;
    }
    void BitConverter::FromDoubleBE(uint8_t& b, double v)
    {
        FromUint64BE(b,ToUintBits(v));
    }
    void BitConverter::FromUint64BE(uint8_t& b, uint64_t v)
    {
        uint8_t* b2 = &b;
        b2[0] = (uint8_t)(v >> 56);
        b2[1] = (uint8_t)(v >> 48);
        b2[2] = (uint8_t)(v >> 40);
        b2[3] = (uint8_t)(v >> 32);
        b2[4] = (uint8_t)(v >> 24);
        b2[5] = (uint8_t)(v >> 16);
        b2[6] = (uint8_t)(v >> 8);
        b2[7] = (uint8_t)v;
    }
    void BitConverter::FromUint32BE(uint8_t& b, uint32_t v)
    {
        uint8_t* b2 = &b;
        
        b2[0] = (uint8_t)(v >> 24);
        b2[1] = (uint8_t)(v >> 16);
        b2[2] = (uint8_t)(v >> 8);
        b2[3] = (uint8_t)v;
    }
    void BitConverter::FromUint16BE(uint8_t& b, uint16_t v)
    {
        uint8_t* b2 = &b;
        
        b2[0] = (uint8_t)(v >> 8);
        b2[1] = (uint8_t)v;
    }

    void BitConverter::FromDoubleLE(uint8_t& b, double v)
    {
        FromUint64BE(b,ToUintBits(v));
    }
    void BitConverter::FromFloatLE(uint8_t& b, float v)
    {
        FromUint32BE(b,ToUint32Bits(v));
    }
    void BitConverter::FromUint64LE(uint8_t& b, uint64_t v)
    {
        uint8_t* b2 = &b;
        b2[0] = (uint8_t)v;
        b2[1] = (uint8_t)(v >> 8);
        b2[2] = (uint8_t)(v >> 16);
        b2[3] = (uint8_t)(v >> 24);
        b2[4] = (uint8_t)(v >> 32);
        b2[5] = (uint8_t)(v >> 40);
        b2[6] = (uint8_t)(v >> 48);
        b2[7] = (uint8_t)(v >> 56);
       
    }
    void BitConverter::FromUint32LE(uint8_t& b, uint32_t v)
    {
        uint8_t* b2 = &b;
        
        b2[0] = (uint8_t)v;
        b2[1] = (uint8_t)(v >> 8);
        b2[2] = (uint8_t)(v >> 16);
        b2[3] = (uint8_t)(v >> 24);
       
    }
    void BitConverter::FromUint16LE(uint8_t& b, uint16_t v)
    {
        uint8_t* b2 = &b;
        

        b2[0] = (uint8_t)v;
        b2[1] = (uint8_t)(v >> 8);
    }
    void BitConverter::FromUuid(uint8_t& b, const Uuid& uuid)
    {
        uint8_t* b2 = &b;
        FromUint32BE(b2[0], uuid.time_low);
        FromUint32BE(b2[4], uuid.time_mid);
        FromUint32BE(b2[6], uuid.time_hi_and_version);
        b2[8] = uuid.clock_seq_hi_and_reserved;
        b2[9] = uuid.clock_seq_low;
        for(size_t i = 0; i < 6; i++)
            b2[i+10] = uuid.node[i];
        
    }
  

    Uuid BitConverter::ToUuid(uint8_t& b)
    {
        Uuid uuid;
        BitConverter::ToUuid(b,uuid);
        return uuid;
    }
   

    void BitConverter::ToUuid(uint8_t& b, Uuid& uuid)
    {
        uint8_t* b2 = &b;
        uuid.time_low = ToUint32BE(b2[0]);

        uuid.time_mid = ToUint16BE(b2[4]);

        uuid.time_hi_and_version = ToUint16BE(b2[6]);
       
        uuid.clock_seq_hi_and_reserved = b2[8];
        uuid.clock_seq_low = b2[9];
        for(size_t i = 0; i < 6; i++)
          uuid.node[i]=   b2[i+10];

    }

    int64_t BitConverter::ToSint64BE(uint8_t& b)
    {
        uint64_t src = ToUint64BE(b);
        int64_t dest = 0;
        memcpy(&dest,&src,sizeof(uint64_t));
        return dest;
    }
    int64_t BitConverter::ToSint64LE(uint8_t& b)
    {
        uint64_t src = ToUint64LE(b);
        int64_t dest = 0;
        memcpy(&dest,&src,sizeof(uint64_t));
        return dest;
    }


    int32_t BitConverter::ToSint32BE(uint8_t& b)
    {
        uint32_t src = ToUint32BE(b);
        int32_t dest = 0;
        memcpy(&dest,&src,sizeof(uint32_t));
        return dest;
    }
    int32_t BitConverter::ToSint32LE(uint8_t& b)
    {
        uint32_t src = ToUint32LE(b);
        int32_t dest = 0;
        memcpy(&dest,&src,sizeof(uint32_t));
        return dest;
    }


    int16_t BitConverter::ToSint16BE(uint8_t& b)
    {
        uint16_t src = ToUint16BE(b);
        int16_t dest = 0;
        memcpy(&dest,&src,sizeof(uint16_t));
        return dest;
    }
    int16_t BitConverter::ToSint16LE(uint8_t& b)
    {
        uint16_t src = ToUint16LE(b);
        int16_t dest = 0;
        memcpy(&dest,&src,sizeof(uint16_t));
        return dest;
    }
    

};