tesses-framework/src/Streams/ByteReader.cpp

#include "TessesFramework/Streams/ByteReader.hpp"
#include "TessesFramework/Serialization/BitConverter.hpp"
namespace Tesses::Framework::Streams
{
    std::shared_ptr<Stream> ByteReader::GetStream()
    {
        return this->strm;
    }
    ByteReader::ByteReader(std::shared_ptr<Stream> strm)
    {
        this->strm = strm;
    }
    
    uint8_t ByteReader::ReadU8()
    {
        auto r = this->strm->ReadByte();
        if(r < 0) throw std::runtime_error("End of file");
        return (uint8_t)r;
    }
    uint16_t ByteReader::ReadU16BE()
    {
        uint8_t data[2];
        if(this->strm->ReadBlock(data,2) != 2) throw std::runtime_error("End of file");
        uint16_t n = 0;
        n |= (uint16_t)data[0] << 8;
        n |= (uint16_t)data[1];

        return n;
    }
    uint16_t ByteReader::ReadU16LE()
    {
        uint8_t data[2];
        if(this->strm->ReadBlock(data,2) != 2) throw std::runtime_error("End of file");
        uint16_t n = 0;
        n |= (uint16_t)data[0];
        n |= (uint16_t)data[1] << 8;
        

        return n;
    }
    uint32_t ByteReader::ReadU32BE()
    {

        uint8_t data[4];
        if(this->strm->ReadBlock(data,4) != 4) throw std::runtime_error("End of file");
        uint32_t n = 0;
        n |= (uint32_t)data[0] << 24;
        n |= (uint32_t)data[1] << 16;
        n |= (uint32_t)data[2] << 8;
        n |= (uint32_t)data[3];

        return n;
    }
    uint32_t ByteReader::ReadU32LE()
    {
        uint8_t data[4];
        if(this->strm->ReadBlock(data,4) != 4) throw std::runtime_error("End of file");
        uint32_t n = 0;
        n |= (uint32_t)data[0];
        n |= (uint32_t)data[1] << 8;
        n |= (uint32_t)data[2] << 16;
        n |= (uint32_t)data[3] << 24;
        return n;
    }
    uint64_t ByteReader::ReadU64BE()
    {
        uint8_t data[8];
        if(this->strm->ReadBlock(data,8) != 8) throw std::runtime_error("End of file");
        uint64_t n = 0;
        n |= (uint64_t)data[0] << 56;
        n |= (uint64_t)data[1] << 48;
        n |= (uint64_t)data[2] << 40;
        n |= (uint64_t)data[3] << 32;
        n |= (uint64_t)data[4] << 24;
        n |= (uint64_t)data[5] << 16;
        n |= (uint64_t)data[6] << 8;
        n |= (uint64_t)data[7];

        return n;
    }
    uint64_t ByteReader::ReadU64LE()
    {
        uint8_t data[8];
        if(this->strm->ReadBlock(data,8) != 8) throw std::runtime_error("End of file");
        uint64_t n = 0;
        n |= (uint64_t)data[0];
        n |= (uint64_t)data[1] << 8;
        n |= (uint64_t)data[2] << 16;
        n |= (uint64_t)data[3] << 24;
        n |= (uint64_t)data[4] << 32;
        n |= (uint64_t)data[5] << 40;
        n |= (uint64_t)data[6] << 48;
        n |= (uint64_t)data[7] << 56;
        

        return n;
    }
    int8_t ByteReader::ReadI8()
    {
        auto v=ReadU8();
        return *(int8_t*)&v;
    }
    int16_t ByteReader::ReadI16BE()
    {
        auto v=ReadU16BE();
        return *(int16_t*)&v;
    }
    int16_t ByteReader::ReadI16LE()
    {
        auto v=ReadU16BE();
        return *(int16_t*)&v;
    }
    int32_t ByteReader::ReadI32BE()
    {
        auto v=ReadU32BE();
        return *(int32_t*)&v;
    }
    int32_t ByteReader::ReadI32LE()
    {
        auto v=ReadU32LE();
        return *(int32_t*)&v;
    }
    int64_t ByteReader::ReadI64BE()
    {
        auto v=ReadU64BE();
        return *(int64_t*)&v;
    }
    int64_t ByteReader::ReadI64LE()
    {
        auto v=ReadU64LE();
        return *(int64_t*)&v;
    }
    float ByteReader::ReadF32BE()
    {
        auto v=ReadU32BE();
        return *(float*)&v;
    }
    float ByteReader::ReadF32LE()
    {
        auto v=ReadU32LE();
        return *(float*)&v;
    }
    double ByteReader::ReadF64BE()
    {
        auto v=ReadU64BE();
        return *(double*)&v;
    }
    double ByteReader::ReadF64LE()
    {
        auto v=ReadU64LE();
        return *(double*)&v;
    }
    
    Uuid ByteReader::ReadUuid()
    {
        uint8_t data[16];
        if(this->strm->ReadBlock(data, 16) != 16)
            throw std::runtime_error("End of file");
        return Serialization::BitConverter::ToUuid(data[0]);
    }
    void ByteReader::ReadUuid(Uuid& uuid)
    {
        uint8_t data[16];
        if(this->strm->ReadBlock(data, 16) != 16)
            throw std::runtime_error("End of file");
        Serialization::BitConverter::ToUuid(data[0],uuid);
    }
    
}