/// <summary>
/// A static initializer which populates the FileVersion and the ObjectModelVersion with the parsed contents of V_CURRENT.
/// </summary>
static VimConstants()
{
var parsedCurrent = SerializableHeader.Parse(V_CURRENT);
FileVersion = parsedCurrent.FileVersion;
ObjectModelVersion = parsedCurrent.ObjectModelVersion;
}
public static ExpansionMode GetExpansionMode(this SerializableHeader header)
=> header.ObjectModelVersion.Major <= 2
? ExpansionMode.WorldSpaceGeometry
: ExpansionMode.LocalGeometry;
public static SerializableDocument ReadBuffer(this SerializableDocument doc, Stream stream, string name, long numBytes)
{
Debug.WriteLine($"Reading buffer {name} of size {Util.BytesToString(numBytes)}");
switch (name)
{
case BufferNames.Header:
var bytes = stream.ReadArray <byte>((int)numBytes);
doc.Header = SerializableHeader.Parse(Encoding.UTF8.GetString(bytes));
return(doc);
case BufferNames.Assets:
if (doc.Options?.SkipAssets == true)
{
Debug.WriteLine("Skipping assets");
stream.Advance(numBytes);
return(doc);
}
doc.Assets = stream.ReadBFast().ToArray();
return(doc);
case BufferNames.Strings:
var stringBytes = stream.ReadArray <byte>((int)numBytes);
var joinedStringTable = Encoding.UTF8.GetString(stringBytes);
doc.StringTable = joinedStringTable.Split('\0');
return(doc);
case BufferNames.Geometry:
if (doc.Options?.SkipGeometry == true)
{
Debug.WriteLine("Skipping geometry");
stream.Advance(numBytes);
return(doc);
}
doc.Geometry = G3D.Read(stream);
return(doc);
case BufferNames.Nodes:
if (doc.Options?.SkipGeometry == true)
{
Debug.WriteLine("Skipping nodes");
stream.Advance(numBytes);
return(doc);
}
var cnt = (int)(numBytes / SerializableSceneNode.Size);
Debug.Assert(numBytes % SerializableSceneNode.Size == 0, $"Number of bytes is not divisible by {SerializableSceneNode.Size}");
if (cnt < 0)
{
throw new Exception($"More than {int.MaxValue} items in array");
}
doc.Nodes = stream.ReadArray <SerializableSceneNode>(cnt);
return(doc);
case BufferNames.Entities:
doc.EntityTables = ReadEntityTables(stream);
return(doc);
}
// NOTE: unrecognized buffers are not an error.
Debug.WriteLine($"Unrecognized buffer {name}");
stream.ReadArray <byte>((int)numBytes);
return(doc);
}
