/// <summary>
/// Initializes a new instance of the <see cref="KbinReader"/> class.
/// </summary>
/// <param name="buffer">An array of bytes containing the contents of a binary XML.</param>
public KbinReader(byte[] buffer)
{
//Read header section.
var binaryBuffer = new BigEndianBinaryBuffer(buffer);
var signature = binaryBuffer.ReadU8();
var compressionFlag = binaryBuffer.ReadU8();
var encodingFlag = binaryBuffer.ReadU8();
var encodingFlagNot = binaryBuffer.ReadU8();
//Verify magic.
if (signature != 0xA0)
{
throw new KbinException($"Signature was invalid. 0x{signature.ToString("X2")} != 0xA0");
}
//Encoding flag should be an inverse of the fourth byte.
if ((byte)~encodingFlag != encodingFlagNot)
{
throw new KbinException($"Third byte was not an inverse of the fourth. {~encodingFlag} != {encodingFlagNot}");
}
var compressed = compressionFlag == 0x42;
Encoding = EncodingDictionary.EncodingMap[encodingFlag];
//Get buffer lengths and load.
var span = new Span <byte>(buffer);
var nodeLength = binaryBuffer.ReadS32();
_nodeBuffer = new NodeBuffer(span.Slice(8, nodeLength).ToArray(), compressed, Encoding);
var dataLength = BitConverterHelper.GetBigEndianInt32(span.Slice(nodeLength + 8, 4));
_dataBuffer = new DataBuffer(span.Slice(nodeLength + 12, dataLength).ToArray(), Encoding);
var settings = new XmlWriterSettings
{
Async = false,
Encoding = Encoding,
Indent = false
};
_writerStream = new MemoryStream();
_xmlWriter = XmlWriter.Create(_writerStream, settings);
_xmlWriter.WriteStartDocument();
}
public static string DoubleToString(Span <byte> bytes) => BitConverterHelper.GetBigEndianDouble(bytes).ToString("0.000000");
public static string SingleToStringWithoutCopy(Span <byte> bytes) => BitConverterHelper.GetBigEndianSingleWithoutCopy(bytes).ToString("0.000000");
public static string S64ToString(Span <byte> bytes) => BitConverterHelper.GetBigEndianInt64(bytes).ToString();
public static string U32ToString(Span <byte> bytes) => BitConverterHelper.GetBigEndianUInt32(bytes).ToString();
public static Span <byte> DoubleToBytes(ReadOnlySpan <char> input) => BitConverterHelper.GetBigEndianBytes(double.Parse(input
#if NETSTANDARD2_0
.ToString()
#endif
));
public static Span <byte> S64ToBytes(ReadOnlySpan <char> str) => BitConverterHelper.GetBigEndianBytes(long.Parse(str
#if NETSTANDARD2_0
.ToString()
#endif
));
