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xn65/includes/xna/csharp/binary.hpp
2024-11-08 15:26:57 -03:00

154 lines
5.9 KiB
C++

#ifndef XNA_CSHARP_BINARY_HPP
#define XNA_CSHARP_BINARY_HPP
#include "stream.hpp"
#include "../default.hpp"
namespace xna {
//A simplified port of the System.IO.BinaryReader class.
class BinaryReader {
public:
BinaryReader(sptr<Stream> const& input);
//Returns the next available character and does not advance the byte or character position.
Int PeekChar();
//Reads bytes from the underlying stream and advances the current position of the stream.
virtual Int Read();
//Reads a Boolean value from the current stream and advances the current position of the stream by one byte.
virtual bool ReadBoolean();
//Reads the next byte from the current stream and advances the current position of the stream by one byte.
virtual Byte ReadByte();
//Reads a signed byte from this stream and advances the current position of the stream by one byte.
virtual Sbyte ReadSByte();
//Reads the next character from the current stream and advances the current position of the stream.
virtual Char ReadChar();
//Reads a 2-byte signed integer from the current stream and advances the current position of the stream by two bytes.
virtual Short ReadInt16();
//Reads a 2-byte unsigned integer from the current stream and advances the position of the stream by two bytes.
virtual Ushort ReadUInt16();
//Reads a 4-byte signed integer from the current stream and advances the current position of the stream by four bytes.
virtual Int ReadInt32();
//Reads a 4-byte unsigned integer from the current stream and advances the position of the stream by four bytes.
virtual Uint ReadUInt32();
//Reads a 8-byte signed integer from the current stream and advances the current position of the stream by eight bytes.
virtual Long ReadInt64();
//Reads a 8-byte unsigned integer from the current stream and advances the position of the stream by eight bytes.
virtual Ulong ReadUInt64();
//Reads a 4-byte floating point value from the current stream and advances the current position of the stream by four bytes.
virtual float ReadSingle();
//Reads an 8-byte floating point value from the current stream and advances the current position of the stream by eight bytes.
virtual double ReadDouble();
//Reads a string from the current stream.
virtual std::string ReadString();
//Reads chars from the underlying stream and advances the current position of the stream.
virtual Int Read(std::vector<Char>& buffer, size_t index, size_t count);
//Reads bytes from the underlying stream and advances the current position of the stream.
virtual Int Read(std::vector<Byte>& buffer, size_t index, size_t count);
// Reads the specified number of bytes from the current stream into a byte array
// and advances the current position by that number of bytes.
virtual std::vector<Byte> ReadBytes(size_t count);
// Reads a 32-bit integer in compressed format.
// This function may throw a std::format_error exception.
Int Read7BitEncodedInt();
// Reads a 64-bit integer in compressed format.
// This function may throw a std::format_error exception.
Long Read7BitEncodedInt64();
//Exposes access to the underlying stream of the BinaryReader.
virtual inline sptr<Stream> BaseStream() const {
return stream;
}
//Closes the current reader and the underlying stream.
virtual inline void Close() {
stream = nullptr;
}
protected:
Int InternalReadOneChar();
void FillBuffer(Int numBytes);
Int InternalReadChars(Char* buffer, size_t bufferSize, size_t index, size_t count);
private:
static constexpr int maxCharBytesSize = 128;
static constexpr int bufferLength = 16;
sptr<Stream> stream = nullptr;
std::vector<Byte> charBytes;
std::vector<Char> singleChar;
std::vector<Byte> buffer;
std::vector<Char> charBuffer;
};
//A simplified port of the System.IO.BinaryWriter class.
class BinaryWriter {
public:
BinaryWriter(sptr<Stream> const& stream);
protected:
BinaryWriter() = default;
//Sets the position within the current stream.
Long Seek(Int offset, SeekOrigin origin);
//
// Writes a value to the current stream.
//
//Writes a value to the current stream.
virtual void Write(bool value);
//Writes a value to the current stream.
virtual void Write(Byte value);
//Writes a value to the current stream.
virtual void Write(Sbyte value);
//Writes a value to the current stream.
virtual void Write(Byte const* buffer, Int bufferLength);
//Writes a value to the current stream.
virtual void Write(std::vector<Byte> const& buffer);
//Writes a value to the current stream.
virtual void Write(Byte const* buffer, Int bufferLength, Int index, Int count);
//Writes a value to the current stream.
virtual void Write(std::vector<Byte> const& buffer, Int index, Int count);
//Writes a value to the current stream.
virtual void Write(Char ch);
//Writes a value to the current stream.
virtual void Write(double value);
//Writes a value to the current stream.
virtual void Write(Short value);
//Writes a value to the current stream.
virtual void Write(Ushort value);
//Writes a value to the current stream.
virtual void Write(Int value);
//Writes a value to the current stream.
virtual void Write(Uint value);
//Writes a value to the current stream.
virtual void Write(Long value);
//Writes a value to the current stream.
virtual void Write(Ulong value);
//Writes a value to the current stream.
virtual void Write(float value);
//Writes a value to the current stream.
virtual void Write(std::string const& value);
//Writes a value to the current stream.
virtual void Write(const char* _string, size_t stringLength);
//Exposes access to the underlying stream of the BinaryWriter.
virtual inline sptr<Stream> BaseStream() const {
return OutStream;
}
//Writes a 32-bit integer in a compressed format.
void Write7BitEncodedInt(Int value);
protected:
sptr<Stream> OutStream = nullptr;
private:
std::vector<Byte> _buffer;
};
}
#endif