protected void WriteAttributeData(BinaryStream stream, NomadValue attr, int baseOffset = 0)
{
var ptr = (int)stream.Position + baseOffset;
var data = attr.Data;
var type = data.Type;
var size = data.Size;
var buffer = data.Buffer;
if (data.Type == DataType.RML)
{
throw new InvalidOperationException("Cannot serialize RML data directly!");
}
var oldSize = size;
var attrData = (Format != FormatType.Resource)
? Utils.GetAttributeDataMiniBuffer(buffer, type)
: Utils.GetAttributeDataBuffer(buffer, type);
size = attrData.Length;
var writeData = true;
if (size > 4)
{
// return cached instance, else cache it and return empty
var cache = WriteCache.PreCache(ptr, attrData, size);
if (!cache.IsEmpty)
{
// sizes must match
if (cache.Size == size)
{
var nD = DescriptorTag.CreateReference(cache.Offset, ReferenceType.Offset);
nD.WriteTo(stream, baseOffset);
writeData = false;
}
}
}
if (writeData)
{
var nD = DescriptorTag.Create(size);
nD.WriteTo(stream);
stream.Write(attrData);
}
}
protected void WriteAttributesData_FmtB(BinaryStream stream, List <NomadValue> attributes, int baseOffset)
{
var ptr = (int)stream.Position + baseOffset;
var nAttrs = attributes.Count;
if (nAttrs > 0)
{
var attrData = new byte[nAttrs * 4];
using (var bs = new BinaryStream(attrData))
{
foreach (var attr in attributes)
{
bs.Write(attr.Id.Hash);
}
}
var cache = WriteCache.PreCache(ptr, attrData, nAttrs);
if (!cache.IsEmpty)
{
var ndAttrs = DescriptorTag.CreateReference(cache.Offset, ReferenceType.Offset);
ndAttrs.WriteTo(stream, baseOffset);
}
else
{
var count = DescriptorTag.Create(nAttrs);
count.WriteTo(stream);
stream.Write(attrData);
}
foreach (var attr in attributes)
{
WriteAttribute_FmtB(stream, attr, baseOffset);
}
}
else
{
// nothing to write
stream.WriteByte(0);
}
}