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xn65/includes/xna/csharp/binary.hpp

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