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Antidote
2013-01-26 12:19:24 -08:00
commit ad0505a501
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src/BinaryWriter.cpp Normal file
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#include "BinaryWriter.hpp"
#include "IOException.hpp"
#include "FileNotFoundException.hpp"
#include "utility.hpp"
#include "utf8.h"
#include <stdio.h>
#include <string.h>
#include <vector>
#include <iostream>
BinaryWriter::BinaryWriter(const Uint8* data, Uint64 length)
: Stream(data, length)
{}
BinaryWriter::BinaryWriter(const Stream& stream) :
Stream(stream)
{}
BinaryWriter::BinaryWriter(const std::string& filename)
: m_filename(filename)
{
m_length = 0x10;
m_bitPosition = 0;
m_position = 0;
m_data = new Uint8[m_length];
if (!m_data)
throw IOException("Could not allocate memory!");
memset(m_data, 0, m_length);
}
void BinaryWriter::save(const std::string& filename)
{
if (filename.empty() && m_filename.empty())
throw Exception("InvalidOperationException: BinaryWriter::Save() -> No file specified, cannot save.");
if (!filename.empty())
m_filename = filename;
FILE* out = fopen(m_filename.c_str(), "wb");
if (!out)
throw FileNotFoundException(m_filename);
fwrite(m_data, 1, m_length, out);
fclose(out);
}
Int8 BinaryWriter::readByte()
{
throw IOException("Stream not open for reading");
}
Int8* BinaryWriter::readBytes(Int64)
{
throw IOException("Stream not open for reading");
}
void BinaryWriter::writeInt16(Int16 val)
{
if (m_bitPosition > 0)
{
m_bitPosition = 0;
m_position += sizeof(Uint8);
}
if (m_position + sizeof(Int16) > m_length && m_autoResize)
resize(m_position + sizeof(Int16));
else if (m_position > m_length)
throw IOException("BinaryWriter::WriteInt16() -> Position outside stream bounds");
if ((!isSystemBigEndian() && m_endian == Stream::BigEndian) || (isSystemBigEndian() && m_endian == Stream::LittleEndian))
val = swap16(val);
*(Int16*)(m_data + m_position) = val;
m_position += sizeof(Int16);
}
void BinaryWriter::writeUInt16(Uint16 val)
{
if (m_bitPosition > 0)
{
m_bitPosition = 0;
m_position += sizeof(Uint8);
}
if (m_position + sizeof(Uint16) > m_length && m_autoResize)
resize(m_position + sizeof(Uint16));
else if (m_position > m_length)
throw IOException("BinaryWriter::WriteUInt16() -> Position outside stream bounds");
if ((!isSystemBigEndian() && m_endian == Stream::BigEndian) || (isSystemBigEndian() && m_endian == Stream::LittleEndian))
val = swapU16(val);
*(Uint16*)(m_data + m_position) = val;
m_position += sizeof(Uint16);
}
void BinaryWriter::writeInt32(Int32 val)
{
if (m_bitPosition > 0)
{
m_bitPosition = 0;
m_position += sizeof(Uint8);
}
if (m_position + sizeof(Int32) > m_length && m_autoResize)
resize(m_position + sizeof(Int32));
else if (m_position > m_length)
throw IOException("BinaryWriter::WriteInt32() -> Position outside stream bounds");
if ((!isSystemBigEndian() && m_endian == Stream::BigEndian) || (isSystemBigEndian() && m_endian == Stream::LittleEndian))
val = swap32(val);
*(Int32*)(m_data + m_position) = val;
m_position += sizeof(Int32);
}
void BinaryWriter::writeUInt32(Uint32 val)
{
if (m_bitPosition > 0)
{
m_bitPosition = 0;
m_position += sizeof(Uint8);
}
if (m_position + sizeof(Uint32) > m_length && m_autoResize)
resize(m_position + sizeof(Uint32));
else if (m_position > m_length)
throw IOException("BinaryWriter::WriteUInt32() -> Position outside stream bounds");
if ((!isSystemBigEndian() && m_endian == Stream::BigEndian) || (isSystemBigEndian() && m_endian == Stream::LittleEndian))
val = swap32(val);
*(Uint32*)(m_data + m_position) = val;
m_position += sizeof(Uint32);
}
void BinaryWriter::writeInt64(Int64 val)
{
if (m_bitPosition > 0)
{
m_bitPosition = 0;
m_position += sizeof(Uint8);
}
if (m_position + sizeof(Int64) > m_length && m_autoResize)
resize(m_position + sizeof(Int64));
else if (m_position > m_length)
throw IOException("BinaryWriter::WriteInt64() -> Position outside stream bounds");
if ((!isSystemBigEndian() && m_endian == Stream::BigEndian) || (isSystemBigEndian() && m_endian == Stream::LittleEndian))
val = swap64(val);
*(Int64*)(m_data + m_position) = val;
m_position += sizeof(Int64);
}
void BinaryWriter::writeUInt64(Uint64 val)
{
if (m_bitPosition > 0)
{
m_bitPosition = 0;
m_position += sizeof(Uint8);
}
if (m_position + sizeof(Uint64) > m_length && m_autoResize)
resize(m_position + sizeof(Uint64));
else if (m_position > m_length)
throw IOException("BinaryWriter::WriteUInt64() -> Position outside stream bounds");
if ((!isSystemBigEndian() && m_endian == Stream::BigEndian) || (isSystemBigEndian() && m_endian == Stream::LittleEndian))
val = swap64(val);
*(Uint64*)(m_data + m_position) = val;
m_position += sizeof(Uint64);
}
void BinaryWriter::writeFloat(float val)
{
if (m_bitPosition > 0)
{
m_bitPosition = 0;
m_position += sizeof(Uint8);
}
if (m_position + sizeof(float) > m_length && m_autoResize)
resize(m_position + sizeof(float));
else if (m_position > m_length)
throw IOException("BinaryWriter::WriteFloat() -> Position outside stream bounds");
if ((!isSystemBigEndian() && m_endian == Stream::BigEndian) || (isSystemBigEndian() && m_endian == Stream::LittleEndian))
val = swapFloat(val);
*(float*)(m_data + m_position) = val;
m_position += sizeof(float);
}
void BinaryWriter::writeDouble(double val)
{
if (m_bitPosition > 0)
{
m_bitPosition = 0;
m_position += sizeof(Uint8);
}
if (m_position + sizeof(double) > m_length && m_autoResize)
resize(m_position + sizeof(double));
else if (m_position > m_length)
throw IOException("BinaryWriter::WriteDouble() -> Position outside stream bounds");
if ((!isSystemBigEndian() && m_endian == Stream::BigEndian) || (isSystemBigEndian() && m_endian == Stream::LittleEndian))
val = swapDouble(val);
*(double*)(m_data + m_position)= val;
m_position += sizeof(double);
}
void BinaryWriter::writeBool(bool val)
{
if (m_bitPosition > 0)
{
m_bitPosition = 0;
m_position += sizeof(Uint8);
}
if (m_position + sizeof(bool) > m_length && m_autoResize)
resize(m_position + sizeof(bool));
else if (m_position > m_length)
throw IOException("BinaryWriter::WriteBool() -> Position outside stream bounds");
*(bool*)(m_data + m_position) = val;
m_position += sizeof(bool);
}
void BinaryWriter::writeUnicode(const std::string& str)
{
std::string tmpStr = "\xEF\xBB\xBF" + str;
std::vector<short> tmp;
utf8::utf8to16(tmpStr.begin(), tmpStr.end(), back_inserter(tmp));
for (Uint16 chr : tmp)
{
if (chr != 0xFEFF)
writeInt16(chr);
}
}
bool BinaryWriter::isOpenForReading()
{
return false;
}