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BinaryWriter.cpp
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137 lines (134 loc) · 4.25 KB
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#include "BinaryWriter.hpp"
BinaryWriter::BinaryWriter(Stream& _output)
: output(_output),
buffer{ 0 }
{
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(bool value)
{
buffer[0] = (uint8_t)(value ? 1 : 0);
output.Write(buffer, 0, 1);
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(uint8_t value)
{
output.WriteByte(value);
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(const uint8_t* buffer, int offset, int length)
{
output.Write(buffer, 0, length);
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(short value)
{
buffer[0] = (uint8_t)value;
buffer[1] = (uint8_t)(value >> 8);
output.Write(buffer, 0, 2);
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(unsigned short value)
{
buffer[0] = (uint8_t)value;
buffer[1] = (uint8_t)(value >> 8);
output.Write(buffer, 0, 2);
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(int value)
{
buffer[0] = (uint8_t)value;
buffer[1] = (uint8_t)(value >> 8);
buffer[2] = (uint8_t)(value >> 16);
buffer[3] = (uint8_t)(value >> 24);
output.Write(buffer, 0, 4);
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(unsigned int value)
{
buffer[0] = (uint8_t)value;
buffer[1] = (uint8_t)(value >> 8);
buffer[2] = (uint8_t)(value >> 16);
buffer[3] = (uint8_t)(value >> 24);
output.Write(buffer, 0, 4);
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(long long value)
{
buffer[0] = (uint8_t)value;
buffer[1] = (uint8_t)(value >> 8);
buffer[2] = (uint8_t)(value >> 16);
buffer[3] = (uint8_t)(value >> 24);
buffer[4] = (uint8_t)(value >> 32);
buffer[5] = (uint8_t)(value >> 40);
buffer[6] = (uint8_t)(value >> 48);
buffer[7] = (uint8_t)(value >> 56);
output.Write(buffer, 0, 8);
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(unsigned long long value)
{
buffer[0] = (uint8_t)value;
buffer[1] = (uint8_t)(value >> 8);
buffer[2] = (uint8_t)(value >> 16);
buffer[3] = (uint8_t)(value >> 24);
buffer[4] = (uint8_t)(value >> 32);
buffer[5] = (uint8_t)(value >> 40);
buffer[6] = (uint8_t)(value >> 48);
buffer[7] = (uint8_t)(value >> 56);
output.Write(buffer, 0, 8);
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(const void* value)
{
#ifdef _WIN64
Write(reinterpret_cast<unsigned long long>(value));
#else
Write(reinterpret_cast<unsigned int>(value));
#endif
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(float value)
{
auto tmp = *(unsigned int*)&value;
buffer[0] = (uint8_t)tmp;
buffer[1] = (uint8_t)(tmp >> 8);
buffer[2] = (uint8_t)(tmp >> 16);
buffer[3] = (uint8_t)(tmp >> 24);
output.Write(buffer, 0, 4);
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(double value)
{
auto tmp = *(unsigned long long*)&value;
buffer[0] = (uint8_t)tmp;
buffer[1] = (uint8_t)(tmp >> 8);
buffer[2] = (uint8_t)(tmp >> 16);
buffer[3] = (uint8_t)(tmp >> 24);
buffer[4] = (uint8_t)(tmp >> 32);
buffer[5] = (uint8_t)(tmp >> 40);
buffer[6] = (uint8_t)(tmp >> 48);
buffer[7] = (uint8_t)(tmp >> 56);
output.Write(buffer, 0, 8);
}
//---------------------------------------------------------------------------
void BinaryWriter::Write(const std::wstring& value)
{
int byteLength = (int)value.length() * sizeof(std::wstring::value_type);
Write7BitEncodedInt(byteLength);
output.Write(reinterpret_cast<const uint8_t*>(value.data()), 0, byteLength);
}
//---------------------------------------------------------------------------
void BinaryWriter::Write7BitEncodedInt(int value)
{
// Write out an int32 7 bits at a time. The high bit of the byte,
// when on, tells reader to continue reading more byte.
auto v = (unsigned int)value;
while (v >= 0x80)
{
Write((uint8_t)(v | 0x80));
v >>= 7;
}
Write((uint8_t)v);
}
//---------------------------------------------------------------------------