private static void WriteTable(
Stream stream, List <Node> itemList, WriteMTableItem writeItem, GetMTableItemSize getItemSize)
{
const int Alignment = 2;
using (var writer = new BinaryWriter(stream))
{
int basePtr = (1 + itemList.Count) * 2;
var ptrs = new ushort[itemList.Count];
writer.BaseStream.Position = basePtr;
for (int i = 0; i < itemList.Count; i++)
{
var node = itemList[i];
ptrs[i] = (ushort)Utility.AlignStream(writer.BaseStream, Alignment);
writeItem(writer, node.Child);
}
Utility.PadStream(writer.BaseStream);
writer.BaseStream.Position = 0;
writer.Write((ushort)itemList.Count);
foreach (var ptr in ptrs)
{
writer.Write((ushort)(ptr - basePtr));
}
}
}
private static void WriteMTable(
Stream stream, Node root, WriteMTableItem writeItem, GetMTableItemSize getItemSize)
{
using (var writer = new BinaryWriter(stream))
{
var itemList = (List <Node>)root.Children;
int basePtr = (1 + itemList.Count) * 2;
var ptrs = new ushort[itemList.Count];
writer.BaseStream.Position = basePtr;
for (int i = 0; i < itemList.Count; i++)
{
var node = itemList[i];
var dimSizes = new List <int>();
while (true)
{
var list = node.Children as List <Node>;
if (list != null)
{
dimSizes.Add(list.Count);
Debug.Assert(list.Count > 0);
node = list[0];
}
else
{
int size = getItemSize(node.Children);
dimSizes.Add(size);
break;
}
}
for (int j = dimSizes.Count - 2; j >= 0; j--)
{
dimSizes[j] *= dimSizes[j + 1];
}
ptrs[i] = (ushort)writer.BaseStream.Position;
writer.Write((byte)(dimSizes.Count - 1));
for (int j = 1; j < dimSizes.Count; j++)
{
writer.Write((byte)dimSizes[j]);
}
WriteArrayDim(writer, itemList[i], writeItem);
}
Utility.PadStream(writer.BaseStream);
writer.BaseStream.Position = 0;
writer.Write((ushort)itemList.Count);
foreach (var ptr in ptrs)
{
writer.Write((ushort)(ptr - basePtr));
}
}
}
public static void ConvertTable(
Stream inStream,
Stream outStream,
ReadMTableItem readItem,
WriteMTableItem writeItem,
GetMTableItemSize getItemSize)
{
var list = ReadTable(inStream, readItem);
WriteTable(outStream, list, writeItem, getItemSize);
}
private static void WriteArrayDim(
BinaryWriter writer, Node node, WriteMTableItem writeItem)
{
var list = node.Children as List <Node>;
if (list != null)
{
foreach (var child in list)
{
WriteArrayDim(writer, child, writeItem);
}
}
else
{
writeItem(writer, node.Children);
}
}
