public override void Serialize(Stream stream, NomadObject data)
{
Context.Begin();
// make sure the cache is ready
NomadCache.Clear();
var bs = (stream as BinaryStream)
?? new BinaryStream(stream);
Context.Log("Serializing data...");
WriteHeader(bs, data);
switch (Format)
{
case FormatType.Resource:
case FormatType.Objects:
WriteObject_FmtA(bs, data);
break;
case FormatType.Entities:
DescriptorTag.GlobalFlags |= DescriptorFlags.Use24Bit;
WriteObject_FmtB(bs, data);
DescriptorTag.GlobalFlags &= ~DescriptorFlags.Use24Bit;
break;
}
Context.End();
}
protected void WriteObject_FmtA(BinaryStream stream, NomadObject obj)
{
Context.State = ContextStateType.Object;
Context.ObjectIndex++;
var ptr = (int)stream.Position;
var idx = NomadCache.Find(obj);
if (idx != -1)
{
var cached = NomadCache.Refs[idx];
var tag = DescriptorTag.CreateReference(Context.GetIdx(cached), ReferenceType.Index);
tag.WriteTo(stream);
}
else
{
var nChildren = DescriptorTag.Create(obj.Children.Count);
var nAttributes = DescriptorTag.Create(obj.Attributes.Count);
Context.AddRef(obj, ptr);
nChildren.WriteTo(stream);
stream.Write(obj.Id.Hash);
if (obj.IsRml)
{
WriteRmlData(stream, obj);
}
else
{
nAttributes.WriteTo(stream);
Context.State = ContextStateType.Member;
foreach (var attr in obj.Attributes)
{
WriteAttribute_FmtA(stream, attr);
}
foreach (var child in obj.Children)
{
WriteObject_FmtA(stream, child);
}
}
}
}
protected void WriteObject_FmtB(BinaryStream stream, NomadObject obj)
{
Context.State = ContextStateType.Object;
Context.ObjectIndex++;
var ptr = (int)stream.Position;
var idx = NomadCache.Find(obj);
if (idx != -1)
{
var cached = NomadCache.Refs[idx];
var offset = (int)Context.GetPtr(cached);
var tag = DescriptorTag.CreateReference(offset, ReferenceType.Offset);
tag.WriteTo(stream);
}
else
{
var reference = new NomadReference(obj);
var cached = reference.Get();
Context.AddRef(cached, ptr);
var count = DescriptorTag.Create(obj.Children.Count);
count.WriteTo(stream);
stream.Write(obj.Id.Hash);
WriteAttributesList_FmtB(stream, obj);
foreach (var child in obj.Children)
{
WriteObject_FmtB(stream, child);
}
}
}
public NomadReference(NomadData data)
{
Index = NomadCache.Register(data, out long hash);
Hash = hash;
}