protected bool WriteAttributesList_FmtB(BinaryStream stream, NomadObject obj)
{
var ptr = (int)stream.Position;
byte[] buffer = new byte[0];
using (var bs = new BinaryStream(1024))
{
WriteAttributesData_FmtB(bs, obj.Attributes, ptr);
buffer = bs.ToArray();
}
var length = buffer.Length;
if (length > 65535)
{
throw new InvalidOperationException("Attribute data too large.");
}
stream.Write((short)length);
stream.Write(buffer, 0, length);
// did we write any data?
return(length > 0);
}
public void Serialize(BinaryStream output)
{
output.Write(LastSortedCRC);
output.Write(CompressedSize);
output.Write(DecompressedSize);
output.Write(CompressedBytes);
}
public void Serialize(BinaryStream output)
{
output.Write(Version);
output.Write(Sections.Count);
foreach (var section in Sections)
{
section.Serialize(output);
}
}
public void WriteTo(BinaryStream stream, int baseOffset = 0)
{
var value = Value;
switch (Type)
{
case DescriptorType.None:
stream.WriteByte(value);
break;
case DescriptorType.BigValue:
case DescriptorType.Reference:
{
var code = (byte)~Type;
if (ReferenceType == ReferenceType.Offset)
{
var ptr = (int)stream.Position + baseOffset;
var offset = (ptr - value);
if (offset < 0)
{
throw new InvalidOperationException("Cannot write a forward-offset!");
}
value = offset;
}
if (GlobalFlags.HasFlag(DescriptorFlags.Use24Bit))
{
if ((value & 0xFFFFFF) != value)
{
throw new InvalidOperationException($"Descriptor value '{value}' too large, cannot fit into 24-bits!");
}
value <<= 8;
value |= code;
stream.Write(value);
}
else
{
stream.WriteByte(code);
stream.Write(value);
}
} break;
}
}
public override void Serialize(BinaryStream stream)
{
Offset = (int)stream.Position;
var nChildren = Children.Count;
var nAttributes = Attributes.Count;
var nD = DescriptorTag.Create(nChildren);
nD.WriteTo(stream);
stream.Write(Hash);
if (nAttributes > 0)
{
// write attributes
foreach (var attribute in Attributes)
{
attribute.Serialize(stream, true); // hash
attribute.Serialize(stream, false); // data
}
}
else
{
// no attributes to write!
stream.WriteByte(0);
}
// now write the children out
foreach (var child in Children)
{
child.Serialize(stream);
}
}
public void Serialize(BinaryStream stream)
{
if (Use32Bit)
{
var uid32 = (int)(UID & 0xFFFFFFFF);
stream.Write(uid32);
}
else
{
stream.Write(UID);
}
stream.Write(Offset - 8);
stream.Write((ushort)TotalCount);
stream.Write((ushort)NodesCount);
}
public byte[] Unpack()
{
var memory = new BinaryStream(1024);
using (var bs = new BinaryStream(Data))
{
for (int i = 1; i < Blocks.Count; i++)
{
var block = Blocks[i - 1];
var next = Blocks[i];
var size = (int)(next.VirtualOffset - block.VirtualOffset);
bs.Seek(block.FileOffset - 4, SeekOrigin.Begin);
memory.Seek(block.VirtualOffset, SeekOrigin.Begin);
if (block.IsCompressed == true)
{
var zlib = new InflaterInputStream(bs);
zlib.CopyTo(memory);
}
else
{
var buffer = bs.ReadBytes(size);
memory.Write(buffer, 0, size);
}
}
}
return(memory.ToArray());
}
public void Serialize(BinaryStream stream, int baseOffset = 0)
{
if (Type == DataType.RML)
{
throw new InvalidOperationException("Cannot serialize RML data directly!");
}
var ptr = (int)stream.Position;
var oldSize = Size;
if (Size > 0)
{
var writeData = true;
if (CanBeCached)
{
if (WriteCache.IsCached(this))
{
var cache = WriteCache.GetData(this);
if (cache.Size == Size)
{
stream.Position = (cache.Offset + 1);
var buf = stream.ReadBytes(cache.Size);
var key = Memory.GetCRC32(Buffer);
var bufKey = Memory.GetCRC32(buf);
stream.Position = ptr;
// slow as f**k, but there's no room for error
if (key == bufKey)
{
var nD = DescriptorTag.CreateReference(cache.Offset, ReferenceType.Offset);
nD.WriteTo(stream, baseOffset);
writeData = false;
}
}
}
else
{
WriteCache.Cache(ptr, this);
}
}
if (writeData)
{
var nD = DescriptorTag.Create(Size);
nD.WriteTo(stream, baseOffset);
stream.Write(Buffer);
}
}
else
{
// nothing to write!
stream.WriteByte(0);
}
}
public void Serialize(BinaryStream stream)
{
var nodesCount = 0;
var attrsCount = 0;
switch (Type)
{
case ContainerType.Objects:
{
var root = (NodeObject)Root;
nodesCount = Utils.GetTotalNumberOfNodes(root);
attrsCount = root.Attributes.Count;
}
break;
case ContainerType.Classes:
{
var root = (NodeClass)Root;
nodesCount = Utils.GetTotalNumberOfNodes(root);
attrsCount = root.Attributes.Count;
}
break;
}
if (attrsCount == 0)
{
attrsCount = 1;
}
var totalCount = (nodesCount + attrsCount);
Debug.WriteLine(">> Writing FCB header...");
stream.Write((int)Magic);
stream.Write((short)Type);
stream.Write((short)MagicNumber.FB); // ;)
stream.Write(totalCount);
stream.Write(nodesCount);
Debug.WriteLine(">> Writing data...");
Root.Serialize(stream);
}
protected void WriteAttributeRmlData(BinaryStream stream, NomadValue attr)
{
var rmlBuffer = attr.Data.Buffer;
var rmlSize = DescriptorTag.Create(rmlBuffer.Length);
rmlSize.WriteTo(stream);
stream.Write(rmlBuffer);
}
public void Serialize(BinaryStream stream)
{
stream.Write(4 + Data.Length);
stream.Write(Data, 0, Data.Length);
stream.Write(Blocks.Count);
foreach (var block in Blocks)
{
stream.Write(block.VirtualOffset);
uint foic = 0;
foic |= block.FileOffset;
foic &= 0x7FFFFFFF;
foic |= (block.IsCompressed == true ? 1u : 0u) << 31;
stream.Write(foic);
}
}
public void Serialize(BinaryStream stream, bool writeHash)
{
if (writeHash)
{
stream.Write(Hash);
}
else
{
Serialize(stream);
}
}
public void Serialize(BinaryStream stream)
{
stream.Write(Signature);
stream.Write(Version);
uint offset = 0;
offset += 20;
stream.Write(offset);
offset += 4 + (uint)Data.Data.Length + 4 + ((uint)Data.Blocks.Count * 8);
stream.Write(offset);
offset += 4 + (uint)Header.Data.Length + 4 + ((uint)Header.Blocks.Count * 8);
stream.Write(offset);
Data.Serialize(stream);
Header.Serialize(stream);
Descriptor.Serialize(stream);
}
public void Serialize(BinaryStream output)
{
output.Write(StringCount);
foreach (var value in SortedEnums)
{
output.Write(value);
}
foreach (var value2 in StringOffsets)
{
output.Write(value2);
}
foreach (var tuple in IdValuePairs)
{
output.Write(tuple.Key);
output.Write(tuple.Value, Encoding.Unicode);
}
}
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 WriteHeader(BinaryStream stream, NomadObject data)
{
var childCount = 0;
var attrCount = data.Attributes.Count;
if (attrCount == 0)
{
attrCount = 1;
}
foreach (var obj in data)
{
if (obj.IsObject)
{
childCount++;
continue;
}
}
var totalCount = (childCount + attrCount);
int magic = Nomad.Magic;
int type = (ushort)Format;
if (Nomad.WriteSealOfApproval)
{
// won't trip the "debug info" flag for version 2 resources;
// has no effect on versions 3 and 5 (which is why it went undetected for so long)
// always check your bits, folks!
type |= (MagicNumber.fB << 16); // ;)
}
stream.Write(magic);
stream.Write(type);
stream.Write(totalCount);
stream.Write(childCount);
}
protected void WriteAttribute_FmtA(BinaryStream stream, NomadValue attr)
{
Context.State = ContextStateType.Member;
Context.MemberIndex++;
stream.Write(attr.Id.Hash);
if (attr.IsRml)
{
WriteAttributeRmlData(stream, attr);
}
else
{
WriteAttributeData(stream, attr);
}
}
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 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);
}
}
protected void WriteRmlData(BinaryStream stream, NomadObject data)
{
byte[] rmlBuffer = null;
using (var bs = new BinaryStream(1024))
{
var rmlData = new NomadRmlSerializer();
rmlData.Serialize(bs, data);
rmlBuffer = bs.ToArray();
}
var size = DescriptorTag.Create(rmlBuffer.Length);
var next = DescriptorTag.Create(size);
next.WriteTo(stream);
size.WriteTo(stream);
stream.Write(rmlBuffer, 0, rmlBuffer.Length);
}
private void WriteAttributeHashes(BinaryStream stream)
{
var ptr = (int)stream.Position;
var nAttrs = Attributes.Count;
if (nAttrs > 0)
{
var attrHBuf = new byte[(nAttrs * 4) + 1];
using (var buf = new BinaryStream(attrHBuf))
{
buf.WriteByte(nAttrs);
foreach (var attr in Attributes)
{
attr.Serialize(buf, true);
}
}
if (WriteCache.IsCached(attrHBuf, nAttrs))
{
var cache = WriteCache.GetData(attrHBuf, nAttrs);
var nhD = DescriptorTag.CreateReference(cache.Offset, ReferenceType.Offset);
nhD.WriteTo(stream);
}
else
{
WriteCache.Cache(ptr, attrHBuf, nAttrs);
stream.Write(attrHBuf);
}
}
else
{
// nothing to write
stream.WriteByte(0);
}
}
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 void Serialize(BinaryStream output)
{
output.Write(Name.Hash);
output.Write(StringCount);
foreach (var locStr in LocalizedStrings)
{
locStr.Serialize(output);
}
var vals = new List <DecompressedValues>();
var locStrs = new List <OasisLocalizedString>();
var len = 0;
var crc = 0;
foreach (var locStr in LocalizedStrings)
{
locStrs.Add(locStr);
len += (locStr.Value.Length * 2);
if ((len >= MAX_LENGTH) &&
(locStr.Enum != crc))
{
var val = new DecompressedValues(locStrs);
vals.Add(val);
locStrs = new List <OasisLocalizedString>();
len = 0;
crc = 0;
}
else
{
crc = locStr.Enum;
}
}
if (locStrs.Count != 0)
{
var val = new DecompressedValues(locStrs);
vals.Add(val);
locStrs = new List <OasisLocalizedString>();
}
output.Write(vals.Count);
foreach (var val in vals)
{
var cpr = new CompressedValues();
using (var bs = new BinaryStream(1024))
{
val.Serialize(bs);
var buffer = bs.ToArray();
var size = buffer.Length;
byte[] cprBuffer = null;
var lz = new LZ4Compressor64();
var cprSize = lz.Compress(buffer, cprBuffer);
cpr.CompressedBytes = cprBuffer;
cpr.CompressedSize = cprSize;
cpr.DecompressedSize = size;
cpr.LastSortedCRC = val.SortedEnums.Last();
}
cpr.Serialize(output);
}
}
public void Serialize(BinaryStream output)
{
output.Write(Id);
output.Write(Section);
output.Write(Enum);
}
public override void Serialize(Stream stream, NomadObject data)
{
if (Context.State == ContextStateType.End)
{
Context.Reset();
}
if (data.Id != "RML_DATA")
{
throw new InvalidOperationException("RML data wasn't prepared before initializing.");
}
if ((data.Children.Count != 1) || (data.Attributes.Count != 0))
{
throw new InvalidOperationException("RML data is malformed and cannot be serialized properly.");
}
var _stream = (stream as BinaryStream)
?? new BinaryStream(stream);
var rmlRoot = data.Children[0];
if (!rmlRoot.IsRml)
{
throw new InvalidOperationException("You can't serialize non-RML data as RML data, dumbass!");
}
_strings.Clear();
var strLookup = new Dictionary <string, int>();
var strPtr = 0;
var getStrIdx = new Func <string, int>((str) => {
var ptr = 0;
if (str == null)
{
str = String.Empty;
}
if (strLookup.ContainsKey(str))
{
ptr = strLookup[str];
}
else
{
// add to lookup
ptr = strPtr;
strLookup.Add(str, strPtr);
// add to string table
_strings.Add(strPtr, str);
// must have null-terminator!
var strLen = 1;
if (str != null)
{
strLen += str.Length;
}
strPtr += strLen;
}
return(ptr);
});
var entries = new List <NomadData>();
var elemsCount = 1;
var attrsCount = 0;
entries.Add(rmlRoot);
// iterates through attributes then children (and children's children, etc.)
foreach (var nd in rmlRoot)
{
if (!nd.IsRml)
{
throw new InvalidOperationException("Can't serialize non-RML data!");
}
if (nd.IsAttribute)
{
++attrsCount;
}
else if (nd.IsObject)
{
++elemsCount;
}
entries.Add(nd);
}
// rough size estimate
var rmlSize = ((elemsCount * 4) + (attrsCount * 2));
var strTableLen = -1;
byte[] rmlBuffer = null;
using (var ms = new BinaryStream(rmlSize))
{
var writeInt = new Action <int>((ptr) => {
var nD = DescriptorTag.Create(ptr);
nD.WriteTo(ms);
});
var writeRml = new Action <NomadData>((nd) => {
var nameIdx = getStrIdx(nd.Id);
var valIdx = -1;
if (nd.IsObject)
{
Context.State = ContextStateType.Object;
Context.ObjectIndex++;
var obj = (NomadObject)nd;
valIdx = getStrIdx(obj.Tag);
writeInt(nameIdx);
writeInt(valIdx);
writeInt(obj.Attributes.Count);
writeInt(obj.Children.Count);
}
else if (nd.IsAttribute)
{
Context.State = ContextStateType.Member;
Context.MemberIndex++;
var attr = (NomadValue)nd;
valIdx = getStrIdx(attr.Data);
// required for attributes
ms.WriteByte(0);
writeInt(nameIdx);
writeInt(valIdx);
}
});
writeRml(rmlRoot);
// enumerates attributes, then children (+ nested children)
foreach (var rml in rmlRoot)
{
writeRml(rml);
}
// setup string table size
strTableLen = strPtr;
// write out string table
foreach (var kv in _strings)
{
var str = kv.Value;
var strLen = (str != null) ? str.Length : 0;
var strBuf = new byte[strLen + 1];
if (strLen > 0)
{
Encoding.UTF8.GetBytes(str, 0, strLen, strBuf, 0);
}
ms.Write(strBuf);
}
// commit buffer
rmlBuffer = ms.ToArray();
rmlSize = rmlBuffer.Length;
}
var bufSize = 5; // header + 3 small ints
// expand size as needed
if (strTableLen >= 254)
{
bufSize += 4;
}
if (elemsCount >= 254)
{
bufSize += 4;
}
if (attrsCount >= 254)
{
bufSize += 4;
}
// calculate the final size (hopefully)
bufSize += rmlSize;
byte[] result = null;
using (var ms = new BinaryStream(bufSize))
{
ms.WriteByte(0);
ms.WriteByte(Reserved);
DescriptorTag[] descriptors =
{
DescriptorTag.Create(strTableLen),
DescriptorTag.Create(elemsCount),
DescriptorTag.Create(attrsCount),
};
foreach (var desc in descriptors)
{
desc.WriteTo(ms);
}
// write RML data (+ string table)
ms.Write(rmlBuffer);
// profit!!!
result = ms.ToArray();
}
_stream.Write(result, 0, result.Length);
Context.State = ContextStateType.End;
}
public void SaveBinary(string filename)
{
var root = GetNodeClass();
byte[] buffer;
Debug.WriteLine(">> Generating binary data...");
using (var stream = new BinaryStream(BufferSize))
{
// list of references sorted by their UID
var references = GetEntityReferences(true);
// we need to write the offset to our infos here
Debug.WriteLine(">> Writing infos header...");
var ptr = stream.Position;
stream.Position += 4;
stream.Write(references.Count);
Debug.WriteLine(">> Writing FCB header...");
stream.Write((int)Magic);
stream.Write((short)Type);
stream.Write((short)MagicNumber.FB); // ;)
var nodesCount = Utils.GetTotalNumberOfNodes(root);
var attrCount = root.Attributes.Count;
if (attrCount == 0)
{
attrCount = 1;
}
var totalCount = (nodesCount + attrCount);
stream.Write(totalCount);
stream.Write(nodesCount);
root.Serialize(stream);
//Debug.WriteLine(">> Optimizing data...");
//using (var bs = new BinaryStream(BufferSize))
//{
// root.Serialize(bs);
//
// var dataLen = bs.Position;
// bs.SetLength(dataLen);
//
// var data = OptimizedData.Create(nodesCount, bs.ToArray());
// data.WriteTo(stream);
//}
var refsOffset = (int)(Memory.Align(stream.Position, 8) - ptr);
Debug.WriteLine(">> Writing infos offset...");
stream.Position = ptr;
stream.Write(refsOffset);
Debug.WriteLine(">> Writing infos...");
stream.Position = refsOffset;
foreach (var reference in references)
{
var refData = new EntityReferenceData(reference)
{
Use32Bit = Use32Bit,
};
refData.Serialize(stream);
}
var size = (int)stream.Position;
buffer = new byte[size];
Debug.WriteLine(">> Copying to buffer...");
stream.Position = 0;
stream.Read(buffer, 0, size);
}
Debug.WriteLine(">> Writing to file...");
File.WriteAllBytes(filename, buffer);
}
public void Serialize(BinaryStream stream)
{
stream.Write(Offset);
stream.Write((ushort)TotalCount);
stream.Write((ushort)ChildCount);
}
public NomadObject ReadXmlObject(XElement xml, NomadObject parent = null)
{
Context.State = ContextStateType.Object;
Context.ObjectIndex++;
var name = xml.Name.LocalName;
var id = StringId.Parse(name);
var isRml = false;
if (parent != null)
{
isRml = parent.IsRml;
}
if (!isRml && (id == "RML_DATA"))
{
isRml = true;
}
if (isRml)
{
XElement rmlElem = null;
foreach (var elem in xml.Elements())
{
if (rmlElem != null)
{
throw new XmlException("Too many elements in RML_DATA node!");
}
rmlElem = elem;
}
if (rmlElem == null)
{
throw new XmlException("Empty RML_DATA nodes are cancerous to your health!");
}
var rmlRoot = new NomadObject(true)
{
Id = "RML_DATA"
};
ReadRmlObject(rmlElem, rmlRoot);
byte[] rmlBuffer = null;
using (var bs = new BinaryStream(1024))
{
// don't write size yet
bs.Position += 4;
var rmlData = new NomadRmlSerializer();
rmlData.Serialize(bs, rmlRoot);
// write size
var rmlSize = (int)(bs.Position - 4);
bs.Position = 0;
bs.Write(rmlSize);
rmlBuffer = bs.ToArray();
}
if (parent != null)
{
var rml = new NomadValue()
{
Id = id,
Data = new AttributeData(DataType.RML, rmlBuffer),
};
parent.Attributes.Add(rml);
}
return(rmlRoot);
}
var result = new NomadObject(isRml)
{
Id = id
};
foreach (var attr in xml.Attributes())
{
ReadXmlAttribute(attr, result);
}
foreach (var node in xml.Elements())
{
ReadXmlObject(node, result);
}
if (parent != null)
{
parent.Children.Add(result);
}
return(result);
}
public override void Serialize(BinaryStream stream)
{
Offset = (int)stream.Position;
var nChildren = Children.Count;
var nAttributes = Attributes.Count;
var writeData = true;
if (Size > 16)
{
if (WriteCache.IsCached(this))
{
var cache = WriteCache.GetData(this);
var obj = cache.Object as NodeClass;
if ((obj != null) && obj.Equals(this))
{
Debug.WriteLine($">> [Class:{Offset:X8}] Instance cached @ {cache.Offset:X8} with key {cache.Checksum:X8}");
var nD = DescriptorTag.CreateReference(cache.Offset, ReferenceType.Offset);
nD.WriteTo(stream);
writeData = false;
}
else
{
Debug.WriteLine($">> [Class:{Offset:X8}] !!! FALSE POSITIVE !!!");
}
}
else
{
Debug.WriteLine($">> [Class:{Offset:X8}] Caching new instance with key {GetHashCode():X8}");
WriteCache.Cache(Offset, this);
}
}
if (writeData)
{
var nD = DescriptorTag.Create(nChildren);
nD.WriteTo(stream);
stream.Write(Hash);
// skip size parameter for now
stream.Position += 2;
var attrsPtr = stream.Position;
if (nAttributes > 0)
{
WriteAttributeHashes(stream);
// write attribute data
foreach (var attribute in Attributes)
{
attribute.Serialize(stream);
}
}
else
{
// no attributes to write!
stream.WriteByte(0);
}
var childrenPtr = stream.Position;
var attrsSize = (int)(childrenPtr - attrsPtr);
if (attrsSize > 65535)
{
throw new InvalidOperationException("Attribute data too large.");
}
// write attributes size
stream.Position = (attrsPtr - 2);
stream.Write((short)attrsSize);
// now write the children out
stream.Position = childrenPtr;
foreach (var child in Children)
{
child.Serialize(stream);
}
}
}
