private static Boolean TryGetNamedMesh(BinaryReader reader,
Double fbxVersion,
FbxNodeMetaData meta,
out NamedMesh mesh)
{
var meshName = GetNameFromProperties(reader, meta);
return(TryGetNamedMesh(reader, meshName, fbxVersion, out mesh));
}
private static FbxNodeMetaData GetNodeMeta64(BinaryReader reader)
{
var data = new FbxNodeMetaData(
reader.ReadInt64(),
reader.ReadInt64(),
reader.ReadInt64(),
reader.ReadByte());
if (!data.IsValid())
{
throw new Exception();
}
return(data);
}
private static String GetNameFromProperties(BinaryReader reader,
FbxNodeMetaData meta)
{
String?meshName = null;
for (var c = 0; c < meta.NumProperties; c++)
{
switch (reader.ReadByte())
{
case _Double:
case _Int64:
reader.BaseStream.Seek(8, SeekOrigin.Current);
break;
case _Int32:
case _Single:
reader.BaseStream.Seek(4, SeekOrigin.Current);
break;
case _Int16:
reader.BaseStream.Seek(2, SeekOrigin.Current);
break;
case _Char:
reader.BaseStream.Seek(1, SeekOrigin.Current);
break;
case _String:
var len = reader.ReadInt32();
if (len == 0)
{
break;
}
if (meshName != null)
{
reader.BaseStream.Seek(len, SeekOrigin.Current);
}
else
{
var sb = new StringBuilder();
for (var i = 0; i < len; i++)
{
var current = reader.ReadChar();
if (current == '\0')
{
meshName ??= sb.ToString();
//reader.BaseStream.Seek(len - i, SeekOrigin.Current);
//break;
}
else if (meshName == null)
{
sb.Append(current);
}
}
//meshName = Encoding.ASCII.GetString(reader.ReadBytes(len));
}
break;
case _ByteArray:
reader.BaseStream.Seek(reader.ReadInt32(), SeekOrigin.Current);
break;
case _BooleanArray:
ReadArray(reader, br => br.ReadBoolean());
break;
case _SingleArray:
ReadArray(reader, br => br.ReadSingle());
break;
case _DoubleArray:
ReadArray(reader, br => br.ReadDouble());
break;
case _IntegerArray:
ReadArray(reader, br => br.ReadInt32());
break;
}
}
return(meshName ?? throw new MissingFieldException("mesh name"));
}
private static Object[] GetPropertyValues(BinaryReader reader,
FbxNodeMetaData meta)
{
var res = new Object[meta.NumProperties];
for (var c = 0; c < meta.NumProperties; c++)
{
var b = reader.ReadByte();
switch (b)
{
case _Double:
res[c] = reader.ReadDouble();
break;
case _Int64:
res[c] = reader.ReadInt64();
break;
case _Int32:
res[c] = reader.ReadInt32();
break;
case _Single:
res[c] = reader.ReadSingle();
break;
case _Int16:
res[c] = reader.ReadInt16();
break;
case _Char:
res[c] = reader.ReadChar();
break;
case _String:
var len = reader.ReadInt32();
res[c] = len == 0
? String.Empty
: Encoding.ASCII.GetString(reader.ReadBytes(len));
break;
case _ByteArray:
res[c] = reader.ReadBytes(reader.ReadInt32());
break;
case _BooleanArray:
res[c] = ReadArray(reader, br => br.ReadBoolean());
break;
case _SingleArray:
res[c] = ReadArray(reader, br => br.ReadSingle());
break;
case _DoubleArray:
res[c] = ReadArray(reader, br => br.ReadDouble());
break;
case _IntegerArray:
res[c] = ReadArray(reader, br => br.ReadInt32());
break;
default:
throw new NotImplementedException();
}
}
return(res);
}