public long Write(Stream stream, XsbFile file)
{
var mem = new MemoryStream();
var writer = new BinaryWriter(mem);
var header = file.Header;
_xsbHeaderStreamWriter.Write(mem, header);
// write crc
var crc = _fcs16Calculator.Calculate(mem.AsMemory().Span.Slice(18));
mem.Position = 8;
writer.Write(crc);
// write to target stream
mem.Position = 0;
mem.CopyTo(stream);
return(mem.Length);
}
public XsbFile Read(Stream stream, long length)
{
var block = stream.TryRead(0, length);
var mem = new MemoryStream(block);
var reader = new BinaryReader(mem);
var result = new XsbFile();
var header = _xsbHeaderStreamReader.Read(mem);
result.Header = header;
var crc = _fcs16Calculator.Calculate(block.AsSpan(18));
if (crc != header.Crc)
{
_logger.Debug($"CRC FCS-16 does not match. Expected:{crc:X4} Found:{header.Crc:X4}");
}
var waveBankNames = new string[result.Header.WaveBankCount];
mem.Position = result.Header.WaveBankNameTableOffset;
for (var i = 0; i < result.Header.WaveBankCount; i++)
{
waveBankNames[i] = reader.ReadBytes(XwbConstants.WavebankBanknameLength)
.TakeWhile(b => b != 0x00).ToArray().GetString();
}
var cues = new List <XsbCue>();
if (result.Header.SimpleCueCount > 0 && result.Header.SimpleCuesOffset > 0)
{
mem.Position = result.Header.SimpleCuesOffset;
cues.AddRange(_xsbCueStreamReader.ReadSimple(mem, result.Header.SimpleCueCount));
}
if (result.Header.ComplexCueCount > 0 && result.Header.ComplexCuesOffset > 0)
{
mem.Position = result.Header.ComplexCuesOffset;
cues.AddRange(_xsbCueStreamReader.ReadComplex(mem, result.Header.ComplexCueCount));
}
var cueNames = Array.Empty <string>();
if (result.Header.CueNameHashTableOffset > 0 && result.Header.CueNameHashValuesOffset > 0)
{
var cueHashIds = new short[result.Header.TotalCueCount];
mem.Position = result.Header.CueNameHashTableOffset;
for (var i = 0; i < result.Header.TotalCueCount; i++)
{
cueHashIds[i] = reader.ReadInt16();
}
var cueHashNameOffsets = new int[cues.Count];
var cueHashValue = new short[cues.Count];
mem.Position = result.Header.CueNameHashValuesOffset;
for (var i = 0; i < cues.Count; i++)
{
cueHashNameOffsets[i] = reader.ReadInt32();
cueHashValue[i] = reader.ReadInt16();
}
cueNames = new string[cues.Count];
for (var i = 0; i < cues.Count; i++)
{
var hashName = new List <byte>();
mem.Position = cueHashNameOffsets[i];
while (true)
{
var b = reader.ReadByte();
if (b == 0x00)
{
break;
}
hashName.Add(b);
}
cueNames[i] = hashName.ToArray().GetString();
}
}
else if (result.Header.CueNamesOffset > 0 && result.Header.CueNameTableLength > 0)
{
mem.Position = result.Header.CueNamesOffset;
cueNames = _xsbCueNameTableStreamReader.Read(mem, result.Header.CueNameTableLength).ToArray();
}
for (var i = 0; i < cueNames.Length; i++)
{
var cue = cues[i];
cue.Name = cueNames[i];
mem.Position = cue.Offset;
cue.Sound = _xsbSoundStreamReader.Read(mem);
cues[i] = cue;
}
result.Cues = cues.ToArray();
return(result);
}
