athena/include/Athena/IStreamWriter.hpp

1078 lines
36 KiB
C++

#ifndef ISTREAMWRITER_HPP
#define ISTREAMWRITER_HPP
#include "utf8proc.h"
#include "IStream.hpp"
namespace Athena
{
namespace io
{
class IStreamWriter : public IStream
{
public:
virtual ~IStreamWriter() {}
/** @brief Sets the Endianness of the stream
*
* @param endian The Endianness to set
*/
inline void setEndian(Endian endian)
{m_endian = endian;}
/** @brief Returns the current Endianness of the stream
*
* @return The current Stream Endianness
*/
inline Endian endian() const
{return m_endian;}
/** @brief Returns whether the stream is BigEndian
*
* @return True for BigEndian; False for LittleEndian
*/
inline bool isBigEndian() const
{return (m_endian == Endian::BigEndian);}
/** @brief Returns whether the stream is LittleEndian
*
* @return True for LittleEndian; False for BigEndian
*/
inline bool isLittleEndian() const
{return (m_endian == Endian::LittleEndian);}
/** @brief Sets the buffers position relative to the specified position.<br />
* It seeks relative to the current position by default.
* @param position where in the buffer to seek
* @param origin The location to seek relative to
*/
virtual void seek(atInt64 pos, SeekOrigin origin = SeekOrigin::Current)=0;
/** @brief Sets the buffers position relative to the next 32-byte aligned position.<br />
*/
inline void seekAlign32() {seek(ROUND_UP_32(position()), SeekOrigin::Begin);}
/** @brief Returns whether or not the stream is at the end.
*
* @return True if at end; False otherwise.
*/
inline bool atEnd() const {return position() >= length();}
/** @brief Returns the current position in the stream.
*
* @return The current position in the stream.
*/
virtual atUint64 position() const=0;
/** @brief Returns whether or not the stream is at the end.
*
* @return True if at end; False otherwise.
*/
virtual atUint64 length() const=0;
/** @brief Writes a byte at the current position and advances the position by one byte.
* @param val The value to write
*/
inline void writeUByte(atUint8 val) {writeUBytes(&val, 1);}
inline void writeVal(atUint8 val) {writeUByte(val);}
inline void writeValLittle(atUint8 val) {writeUByte(val);}
inline void writeValBig(atUint8 val) {writeUByte(val);}
/** @brief Writes a byte at the current position and advances the position by one byte.
* @param val The value to write
*/
inline void writeByte(atInt8 val) {writeUByte(val);}
inline void writeVal(atInt8 val) {writeByte(val);}
inline void writeValLittle(atInt8 val) {writeByte(val);}
inline void writeValBig(atInt8 val) {writeByte(val);}
/** @brief Writes the given buffer with the specified length, buffers can be bigger than the length
* however it's undefined behavior to try and write a buffer which is smaller than the given length.
*
* @param data The buffer to write
* @param length The amount to write
*/
virtual void writeUBytes(const atUint8* data, atUint64 len)=0;
/** @brief Writes the given buffer with the specified length, buffers can be bigger than the length
* however it's undefined behavior to try and write a buffer which is smaller than the given length.
*
* @param data The buffer to write
* @param length The amount to write
*/
inline void writeBytes(const atInt8* data, atUint64 len) {writeUBytes((atUint8*)data, len);}
/** @brief Writes an Int16 to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param val The value to write to the buffer
*/
inline void writeInt16(atInt16 val)
{
if (m_endian == BigEndian)
utility::BigInt16(val);
else
utility::LittleInt16(val);
writeUBytes((atUint8*)&val, 2);
}
inline void writeVal(atInt16 val) {writeInt16(val);}
/** @brief Writes an Int16 to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeInt16Little(atInt16 val)
{
utility::LittleInt16(val);
writeUBytes((atUint8*)&val, 2);
}
inline void writeValLittle(atInt16 val) {writeInt16Little(val);}
/** @brief Writes an Int16 to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeInt16Big(atInt16 val)
{
utility::BigInt16(val);
writeUBytes((atUint8*)&val, 2);
}
inline void writeValBig(atInt16 val) {writeInt16Big(val);}
/** @brief Writes an Uint16 to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings
*
* @param val The value to write to the buffer
*/
inline void writeUint16(atUint16 val) {writeInt16(val);}
inline void writeVal(atUint16 val) {writeUint16(val);}
/** @brief Writes an Uint16 to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform
*
* @param val The value to write to the buffer
*/
inline void writeUint16Little(atUint16 val) {writeInt16Little(val);}
inline void writeValLittle(atUint16 val) {writeUint16Little(val);}
/** @brief Writes an Uint16 to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform
*
* @param val The value to write to the buffer
*/
inline void writeUint16Big(atUint16 val) {writeInt16Big(val);}
inline void writeValBig(atUint16 val) {writeUint16Big(val);}
/** @brief Writes an Int32 to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param val The value to write to the buffer
*/
inline void writeInt32(atInt32 val)
{
if (m_endian == BigEndian)
utility::BigInt32(val);
else
utility::LittleInt32(val);
writeUBytes((atUint8*)&val, 4);
}
inline void writeVal(atInt32 val) {writeInt32(val);}
/** @brief Writes an Int32 to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeInt32Little(atInt32 val)
{
utility::LittleInt32(val);
writeUBytes((atUint8*)&val, 4);
}
inline void writeValLittle(atInt32 val) {writeInt32Little(val);}
/** @brief Writes an Int32 to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeInt32Big(atInt32 val)
{
utility::BigInt32(val);
writeUBytes((atUint8*)&val, 4);
}
inline void writeValBig(atInt32 val) {writeInt32Big(val);}
/** @brief Writes an Uint32 to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param val The value to write to the buffer
*/
inline void writeUint32(atUint32 val) {writeInt32(val);}
inline void writeVal(atUint32 val) {writeUint32(val);}
/** @brief Writes an Uint32 to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeUint32Little(atUint32 val) {writeInt32Little(val);}
inline void writeValLittle(atUint32 val) {writeUint32Little(val);}
/** @brief Writes an Uint32 to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeUint32Big(atUint32 val) {writeInt32Big(val);}
inline void writeValBig(atUint32 val) {writeUint32Big(val);}
/** @brief Writes an Int64 to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param val The value to write to the buffer
*/
inline void writeInt64(atInt64 val)
{
if (m_endian == BigEndian)
utility::BigInt64(val);
else
utility::LittleInt64(val);
writeUBytes((atUint8*)&val, 8);
}
inline void writeVal(atInt64 val) {writeInt64(val);}
/** @brief Writes an Int64 to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeInt64Little(atInt64 val)
{
utility::LittleInt64(val);
writeUBytes((atUint8*)&val, 8);
}
inline void writeValLittle(atInt64 val) {writeInt64Little(val);}
/** @brief Writes an Int64 to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeInt64Big(atInt64 val)
{
utility::BigInt64(val);
writeUBytes((atUint8*)&val, 8);
}
inline void writeValBig(atInt64 val) {writeInt64Big(val);}
/** @brief Writes an Uint64 to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param val The value to write to the buffer
*/
inline void writeUint64(atUint64 val) {writeInt64(val);}
inline void writeVal(atUint64 val) {writeUint64(val);}
/** @brief Writes an Uint64 to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeUint64Little(atUint64 val) {writeInt64Little(val);}
inline void writeValLittle(atUint64 val) {writeUint64Little(val);}
/** @brief Writes an Uint64 to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeUint64Big(atUint64 val) {writeInt64Big(val);}
inline void writeValBig(atUint64 val) {writeUint64Big(val);}
/** @brief Writes an float to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param val The value to write to the buffer
*/
inline void writeFloat(float val)
{
if (m_endian == BigEndian)
utility::BigFloat(val);
else
utility::LittleFloat(val);
writeUBytes((atUint8*)&val, 4);
}
inline void writeVal(float val) {writeFloat(val);}
/** @brief Writes an float to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeFloatLittle(float val)
{
utility::LittleFloat(val);
writeUBytes((atUint8*)&val, 4);
}
inline void writeValLittle(float val) {writeFloatLittle(val);}
/** @brief Writes an float to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeFloatBig(float val)
{
utility::BigFloat(val);
writeUBytes((atUint8*)&val, 4);
}
inline void writeValBig(float val) {writeFloatBig(val);}
/** @brief Writes an double to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param val The value to write to the buffer
*/
inline void writeDouble(double val)
{
if (m_endian == BigEndian)
utility::BigDouble(val);
else
utility::LittleDouble(val);
writeUBytes((atUint8*)&val, 8);
}
inline void writeVal(double val) {writeDouble(val);}
/** @brief Writes an double to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeDoubleLittle(double val)
{
utility::LittleDouble(val);
writeUBytes((atUint8*)&val, 8);
}
inline void writeValLittle(double val) {writeDoubleLittle(val);}
/** @brief Writes an double to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param val The value to write to the buffer
*/
inline void writeDoubleBig(double val)
{
utility::BigDouble(val);
writeUBytes((atUint8*)&val, 8);
}
inline void writeValBig(double val) {writeDoubleBig(val);}
/** @brief Writes an bool to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param val The value to write to the buffer
*/
inline void writeBool(bool val) {writeUBytes((atUint8*)&val, 1);}
inline void writeVal(bool val) {writeBool(val);}
inline void writeValLittle(bool val) {writeBool(val);}
inline void writeValBig(bool val) {writeBool(val);}
/** @brief Writes an atVec2f (8 bytes) to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param vec The value to write to the buffer
*/
inline void writeVec2f(atVec2f vec)
{
if (m_endian == BigEndian)
{
utility::BigFloat(vec.vec[0]);
utility::BigFloat(vec.vec[1]);
}
else
{
utility::LittleFloat(vec.vec[0]);
utility::LittleFloat(vec.vec[1]);
}
writeUBytes((atUint8*)&vec, 8);
}
inline void writeVal(atVec2f val) {writeVec2f(val);}
/** @brief Writes an atVec2f (8 bytes) to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param vec The value to write to the buffer
*/
inline void writeVec2fLittle(atVec2f vec)
{
utility::LittleFloat(vec.vec[0]);
utility::LittleFloat(vec.vec[1]);
writeUBytes((atUint8*)&vec, 8);
}
inline void writeValLittle(atVec2f val) {writeVec2fLittle(val);}
/** @brief Writes an atVec2f (8 bytes) to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param vec The value to write to the buffer
*/
inline void writeVec2fBig(atVec2f vec)
{
utility::BigFloat(vec.vec[0]);
utility::BigFloat(vec.vec[1]);
writeUBytes((atUint8*)&vec, 8);
}
inline void writeValBig(atVec2f val) {writeVec2fBig(val);}
/** @brief Writes an atVec3f (12 bytes) to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param vec The value to write to the buffer
*/
inline void writeVec3f(atVec3f vec)
{
if (m_endian == BigEndian)
{
utility::BigFloat(vec.vec[0]);
utility::BigFloat(vec.vec[1]);
utility::BigFloat(vec.vec[2]);
}
else
{
utility::LittleFloat(vec.vec[0]);
utility::LittleFloat(vec.vec[1]);
utility::LittleFloat(vec.vec[2]);
}
writeUBytes((atUint8*)&vec, 12);
}
inline void writeVal(atVec3f val) {writeVec3f(val);}
/** @brief Writes an atVec3f (12 bytes) to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param vec The value to write to the buffer
*/
inline void writeVec3fLittle(atVec3f vec)
{
utility::LittleFloat(vec.vec[0]);
utility::LittleFloat(vec.vec[1]);
utility::LittleFloat(vec.vec[2]);
writeUBytes((atUint8*)&vec, 12);
}
inline void writeValLittle(atVec3f val) {writeVec3fLittle(val);}
/** @brief Writes an atVec3f (12 bytes) to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param vec The value to write to the buffer
*/
inline void writeVec3fBig(atVec3f vec)
{
utility::BigFloat(vec.vec[0]);
utility::BigFloat(vec.vec[1]);
utility::BigFloat(vec.vec[2]);
writeUBytes((atUint8*)&vec, 12);
}
inline void writeValBig(atVec3f val) {writeVec3fBig(val);}
/** @brief Writes an atVec4f (16 bytes) to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param vec The value to write to the buffer
*/
inline void writeVec4f(atVec4f vec)
{
if (m_endian == BigEndian)
{
utility::BigFloat(vec.vec[0]);
utility::BigFloat(vec.vec[1]);
utility::BigFloat(vec.vec[2]);
utility::BigFloat(vec.vec[3]);
}
else
{
utility::LittleFloat(vec.vec[0]);
utility::LittleFloat(vec.vec[1]);
utility::LittleFloat(vec.vec[2]);
utility::LittleFloat(vec.vec[3]);
}
writeUBytes((atUint8*)&vec, 16);
}
inline void writeVal(atVec4f val) {writeVec4f(val);}
/** @brief Writes an atVec4f (16 bytes) to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param vec The value to write to the buffer
*/
inline void writeVec4fLittle(atVec4f vec)
{
utility::LittleFloat(vec.vec[0]);
utility::LittleFloat(vec.vec[1]);
utility::LittleFloat(vec.vec[2]);
utility::LittleFloat(vec.vec[3]);
writeUBytes((atUint8*)&vec, 16);
}
inline void writeValLittle(atVec4f val) {writeVec4fLittle(val);}
/** @brief Writes an atVec4f (16 bytes) to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param vec The value to write to the buffer
*/
inline void writeVec4fBig(atVec4f vec)
{
utility::BigFloat(vec.vec[0]);
utility::BigFloat(vec.vec[1]);
utility::BigFloat(vec.vec[2]);
utility::BigFloat(vec.vec[3]);
writeUBytes((atUint8*)&vec, 16);
}
inline void writeValBig(atVec4f val) {writeVec4fBig(val);}
/** @brief Writes an atVec2d (16 bytes) to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param vec The value to write to the buffer
*/
inline void writeVec2d(atVec2d vec)
{
if (m_endian == BigEndian)
{
utility::BigDouble(vec.vec[0]);
utility::BigDouble(vec.vec[1]);
}
else
{
utility::LittleDouble(vec.vec[0]);
utility::LittleDouble(vec.vec[1]);
}
writeUBytes((atUint8*)&vec, 16);
}
inline void writeVal(atVec2d val) {writeVec2d(val);}
/** @brief Writes an atVec2d (16 bytes) to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param vec The value to write to the buffer
*/
inline void writeVec2dLittle(atVec2d vec)
{
utility::LittleDouble(vec.vec[0]);
utility::LittleDouble(vec.vec[1]);
writeUBytes((atUint8*)&vec, 16);
}
inline void writeValLittle(atVec2d val) {writeVec2dLittle(val);}
/** @brief Writes an atVec2d (16 bytes) to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param vec The value to write to the buffer
*/
inline void writeVec2dBig(atVec2d vec)
{
utility::BigDouble(vec.vec[0]);
utility::BigDouble(vec.vec[1]);
writeUBytes((atUint8*)&vec, 16);
}
inline void writeValBig(atVec2d val) {writeVec2dBig(val);}
/** @brief Writes an atVec3d (24 bytes) to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param vec The value to write to the buffer
*/
inline void writeVec3d(atVec3d vec)
{
if (m_endian == BigEndian)
{
utility::BigDouble(vec.vec[0]);
utility::BigDouble(vec.vec[1]);
utility::BigDouble(vec.vec[2]);
}
else
{
utility::LittleDouble(vec.vec[0]);
utility::LittleDouble(vec.vec[1]);
utility::LittleDouble(vec.vec[2]);
}
writeUBytes((atUint8*)&vec, 24);
}
inline void writeVal(atVec3d val) {writeVec3d(val);}
/** @brief Writes an atVec3d (24 bytes) to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param vec The value to write to the buffer
*/
inline void writeVec3dLittle(atVec3d vec)
{
utility::LittleDouble(vec.vec[0]);
utility::LittleDouble(vec.vec[1]);
utility::LittleDouble(vec.vec[2]);
writeUBytes((atUint8*)&vec, 24);
}
inline void writeValLittle(atVec3d val) {writeVec3dLittle(val);}
/** @brief Writes an atVec3d (24 bytes) to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param vec The value to write to the buffer
*/
inline void writeVec3dBig(atVec3d vec)
{
utility::BigDouble(vec.vec[0]);
utility::BigDouble(vec.vec[1]);
utility::BigDouble(vec.vec[2]);
writeUBytes((atUint8*)&vec, 24);
}
inline void writeValBig(atVec3d val) {writeVec3dBig(val);}
/** @brief Writes an atVec4d (32 bytes) to the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param vec The value to write to the buffer
*/
inline void writeVec4d(atVec4d vec)
{
if (m_endian == BigEndian)
{
utility::BigDouble(vec.vec[0]);
utility::BigDouble(vec.vec[1]);
utility::BigDouble(vec.vec[2]);
utility::BigDouble(vec.vec[3]);
}
else
{
utility::LittleDouble(vec.vec[0]);
utility::LittleDouble(vec.vec[1]);
utility::LittleDouble(vec.vec[2]);
utility::LittleDouble(vec.vec[3]);
}
writeUBytes((atUint8*)&vec, 32);
}
inline void writeVal(atVec4d val) {writeVec4d(val);}
/** @brief Writes an atVec4d (32 bytes) to the buffer and advances the buffer.
* It also swaps the bytes against little depending on the platform.
*
* @param vec The value to write to the buffer
*/
inline void writeVec4dLittle(atVec4d vec)
{
utility::LittleDouble(vec.vec[0]);
utility::LittleDouble(vec.vec[1]);
utility::LittleDouble(vec.vec[2]);
utility::LittleDouble(vec.vec[3]);
writeUBytes((atUint8*)&vec, 32);
}
inline void writeValLittle(atVec4d val) {writeVec4dLittle(val);}
/** @brief Writes an atVec4d (32 bytes) to the buffer and advances the buffer.
* It also swaps the bytes against big depending on the platform.
*
* @param vec The value to write to the buffer
*/
inline void writeVec4dBig(atVec4d vec)
{
utility::BigDouble(vec.vec[0]);
utility::BigDouble(vec.vec[1]);
utility::BigDouble(vec.vec[2]);
utility::BigDouble(vec.vec[3]);
writeUBytes((atUint8*)&vec, 32);
}
inline void writeValBig(atVec4d val) {writeVec4dBig(val);}
/** @brief Converts a UTF8 string to a wide-char string in the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param str The string to write to the buffer
* @param fixedLen If not -1, the number of characters to zero-fill string to
*
* Endianness is set with setEndian
*/
inline void writeStringAsWString(const std::string& str, atInt32 fixedLen = -1)
{
std::string tmpStr = "\xEF\xBB\xBF" + str;
const utf8proc_uint8_t* buf = reinterpret_cast<const utf8proc_uint8_t*>(tmpStr.c_str());
if (fixedLen < 0)
{
while (*buf)
{
utf8proc_int32_t wc;
utf8proc_ssize_t len = utf8proc_iterate(buf, -1, &wc);
if (len < 0)
{
atWarning("invalid UTF-8 character while decoding");
return;
}
buf += len;
if (wc != 0xFEFF)
writeUint16(atUint16(wc));
}
writeUint16(0);
}
else
{
for (atInt32 i=0 ; i<fixedLen ; ++i)
{
utf8proc_int32_t wc = 0;
if (*buf)
{
utf8proc_ssize_t len = utf8proc_iterate(buf, -1, &wc);
if (len < 0)
{
atWarning("invalid UTF-8 character while decoding");
return;
}
buf += len;
}
if (wc == 0xFEFF)
{
--i;
continue;
}
writeUint16(atUint16(wc));
}
}
}
/** @brief Converts a UTF8 string to a wide-char string in the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param str The string to write to the buffer
* @param fixedLen If not -1, the number of characters to zero-fill string to
*
* Endianness is little
*/
inline void writeStringAsWStringLittle(const std::string& str, atInt32 fixedLen = -1)
{
std::string tmpStr = "\xEF\xBB\xBF" + str;
const utf8proc_uint8_t* buf = reinterpret_cast<const utf8proc_uint8_t*>(tmpStr.c_str());
if (fixedLen < 0)
{
while (*buf)
{
utf8proc_int32_t wc;
utf8proc_ssize_t len = utf8proc_iterate(buf, -1, &wc);
if (len < 0)
{
atWarning("invalid UTF-8 character while decoding");
return;
}
buf += len;
if (wc != 0xFEFF)
writeUint16Little(atUint16(wc));
}
writeUint16Little(0);
}
else
{
for (atInt32 i=0 ; i<fixedLen ; ++i)
{
utf8proc_int32_t wc = 0;
if (*buf)
{
utf8proc_ssize_t len = utf8proc_iterate(buf, -1, &wc);
if (len < 0)
{
atWarning("invalid UTF-8 character while decoding");
return;
}
buf += len;
}
if (wc == 0xFEFF)
{
--i;
continue;
}
writeUint16Little(atUint16(wc));
}
}
}
/** @brief Converts a UTF8 string to a wide-char string in the buffer and advances the buffer.
* It also swaps the bytes depending on the platform and Stream settings.
*
* @param str The string to write to the buffer
* @param fixedLen If not -1, the number of characters to zero-fill string to
*
* Endianness is big
*/
inline void writeStringAsWStringBig(const std::string& str, atInt32 fixedLen = -1)
{
std::string tmpStr = "\xEF\xBB\xBF" + str;
const utf8proc_uint8_t* buf = reinterpret_cast<const utf8proc_uint8_t*>(tmpStr.c_str());
if (fixedLen < 0)
{
while (*buf)
{
utf8proc_int32_t wc;
utf8proc_ssize_t len = utf8proc_iterate(buf, -1, &wc);
if (len < 0)
{
atWarning("invalid UTF-8 character while decoding");
return;
}
buf += len;
if (wc != 0xFEFF)
writeUint16Big(atUint16(wc));
}
writeUint16Big(0);
}
else
{
for (atInt32 i=0 ; i<fixedLen ; ++i)
{
utf8proc_int32_t wc = 0;
if (*buf)
{
utf8proc_ssize_t len = utf8proc_iterate(buf, -1, &wc);
if (len < 0)
{
atWarning("invalid UTF-8 character while decoding");
return;
}
buf += len;
}
if (wc == 0xFEFF)
{
--i;
continue;
}
writeUint16Big(atUint16(wc));
}
}
}
/** @brief Writes an string to the buffer and advances the buffer.
*
* @param str The string to write to the buffer
* @param fixedLen If not -1, the number of characters to zero-fill string to
*/
inline void writeString(const std::string& str, atInt32 fixedLen = -1)
{
if (fixedLen < 0)
{
for (atUint8 c : str)
{
writeUByte(c);
if (c == '\0')
break;
}
writeUByte(0);
}
else
{
auto it = str.begin();
for (atInt32 i=0 ; i<fixedLen ; ++i)
{
atUint8 chr;
if (it == str.end())
chr = 0;
else
chr = *it++;
writeUByte(chr);
}
}
}
inline void writeVal(const std::string& val) {writeString(val);}
/** @brief Writes an wstring to the buffer and advances the buffer.
*
* @param str The string to write to the buffer
* @param fixedLen If not -1, the number of characters to zero-fill string to
*
* Endianness is set with setEndian
*/
inline void writeWString(const std::wstring& str, atInt32 fixedLen = -1)
{
if (fixedLen < 0)
{
for (atUint16 c : str)
{
writeUint16(c);
if (c == L'\0')
break;
}
writeUint16(0);
}
else
{
auto it = str.begin();
for (atInt32 i=0 ; i<fixedLen ; ++i)
{
atUint16 chr;
if (it == str.end())
chr = 0;
else
chr = *it++;
writeUint16(chr);
}
}
}
inline void writeVal(const std::wstring& val) {writeWString(val);}
/** @brief Writes an wstring to the buffer and advances the buffer.
*
* @param str The string to write to the buffer
* @param fixedLen If not -1, the number of characters to zero-fill string to
*
* Endianness is little
*/
inline void writeWStringLittle(const std::wstring& str, atInt32 fixedLen = -1)
{
if (fixedLen < 0)
{
for (atUint16 c : str)
{
writeUint16Little(c);
if (c == L'\0')
break;
}
writeUint16Little(0);
}
else
{
auto it = str.begin();
for (atInt32 i=0 ; i<fixedLen ; ++i)
{
atUint16 chr;
if (it == str.end())
chr = 0;
else
chr = *it++;
writeUint16Little(chr);
}
}
}
inline void writeValLittle(const std::wstring& val) {writeWStringLittle(val);}
/** @brief Writes an wstring to the buffer and advances the buffer.
*
* @param str The string to write to the buffer
* @param fixedLen If not -1, the number of characters to zero-fill string to
*
* Endianness is big
*/
inline void writeWStringBig(const std::wstring& str, atInt32 fixedLen = -1)
{
if (fixedLen < 0)
{
for (atUint16 c : str)
{
writeUint16Big(c);
if (c == L'\0')
break;
}
writeUint16Big(0);
}
else
{
auto it = str.begin();
for (atInt32 i=0 ; i<fixedLen ; ++i)
{
atUint16 chr;
if (it == str.end())
chr = 0;
else
chr = *it++;
writeUint16Big(chr);
}
}
}
inline void writeValBig(const std::wstring& val) {writeWStringBig(val);}
inline void fill(atUint8 val, atUint64 length)
{for (atUint64 l=0 ; l<length ; ++l) writeUBytes(&val, 1);}
inline void fill(atInt8 val, atUint64 length)
{fill((atUint8)val, length);}
/** @brief Performs automatic std::vector enumeration writes using numeric type T
* @param vector The std::vector read from when writing data
*
* Endianness is set with setEndian
*/
template <class T>
void enumerate(const std::vector<T>& vector,
typename std::enable_if<std::is_arithmetic<T>::value ||
std::is_same<T, atVec2f>::value ||
std::is_same<T, atVec3f>::value ||
std::is_same<T, atVec4f>::value>::type* = 0)
{
for (const T& item : vector)
writeVal(item);
}
/** @brief Performs automatic std::vector enumeration writes using numeric type T
* @param vector The std::vector read from when writing data
*
* Endianness is little
*/
template <class T>
void enumerateLittle(const std::vector<T>& vector,
typename std::enable_if<std::is_arithmetic<T>::value ||
std::is_same<T, atVec2f>::value ||
std::is_same<T, atVec3f>::value ||
std::is_same<T, atVec4f>::value>::type* = 0)
{
for (const T& item : vector)
writeValLittle(item);
}
/** @brief Performs automatic std::vector enumeration writes using numeric type T
* @param vector The std::vector read from when writing data
*
* Endianness is big
*/
template <class T>
void enumerateBig(const std::vector<T>& vector,
typename std::enable_if<std::is_arithmetic<T>::value ||
std::is_same<T, atVec2f>::value ||
std::is_same<T, atVec3f>::value ||
std::is_same<T, atVec4f>::value>::type* = 0)
{
for (const T& item : vector)
writeValBig(item);
}
/** @brief Performs automatic std::vector enumeration writes using non-numeric type T
* @param vector The std::vector read from when writing data
*/
template <class T>
void enumerate(const std::vector<T>& vector,
typename std::enable_if<!std::is_arithmetic<T>::value &&
!std::is_same<T, atVec2f>::value &&
!std::is_same<T, atVec3f>::value &&
!std::is_same<T, atVec4f>::value>::type* = 0)
{
for (const T& item : vector)
item.write(*this);
}
protected:
Endian m_endian;
};
template <typename T>
IStreamWriter& operator<<(IStreamWriter& lhs, const T& rhs)
{
lhs.writeVal(rhs);
return lhs;
}
}
}
#endif // STREAMWRITER_HPP