/// <summary>
/// Reads the footer data which is the Ndfbin Dictionary.
/// </summary>
/// <returns></returns>
protected NdfFooter ReadFooter()
{
// Footer is 224 bytes
const int footerLength = 224;
var footer = new NdfFooter();
using (var ms = new MemoryStream(ContentData, ContentData.Length - footerLength, footerLength))
{
var qwdbuffer = new byte[8];
var dwdbufer = new byte[4];
ms.Read(qwdbuffer, 0, qwdbuffer.Length);
footer.Header = Encoding.ASCII.GetString(qwdbuffer);
while (ms.Position < ms.Length)
{
var entry = new NdfFooterEntry();
ms.Read(dwdbufer, 0, dwdbufer.Length);
entry.Name = Encoding.ASCII.GetString(dwdbufer);
ms.Seek(4, SeekOrigin.Current);
ms.Read(qwdbuffer, 0, qwdbuffer.Length);
entry.Offset = BitConverter.ToInt64(qwdbuffer, 0);
ms.Read(qwdbuffer, 0, qwdbuffer.Length);
entry.Size = BitConverter.ToInt64(qwdbuffer, 0);
footer.Entries.Add(entry);
}
}
return(footer);
}
protected byte[] GetCompiledContent(NdfBinary ndf)
{
var footer = new NdfFooter();
const long headerSize = (long)NdfbinHeaderSize;
using (var contentStream = new MemoryStream())
{
byte[] buffer = RecompileObj(ndf);
footer.AddEntry("OBJE", contentStream.Position + headerSize, buffer.Length);
contentStream.Write(buffer, 0, buffer.Length);
buffer = RecompileTopo(ndf);
footer.AddEntry("TOPO", contentStream.Position + headerSize, buffer.Length);
contentStream.Write(buffer, 0, buffer.Length);
buffer = RecompileChnk(ndf);
footer.AddEntry("CHNK", contentStream.Position + headerSize, buffer.Length);
contentStream.Write(buffer, 0, buffer.Length);
buffer = RecompileClas(ndf);
footer.AddEntry("CLAS", contentStream.Position + headerSize, buffer.Length);
contentStream.Write(buffer, 0, buffer.Length);
buffer = RecompileProp(ndf);
footer.AddEntry("PROP", contentStream.Position + headerSize, buffer.Length);
contentStream.Write(buffer, 0, buffer.Length);
buffer = RecompileStrTable(ndf.Strings);
footer.AddEntry("STRG", contentStream.Position + headerSize, buffer.Length);
contentStream.Write(buffer, 0, buffer.Length);
buffer = RecompileStrTable(ndf.Trans);
footer.AddEntry("TRAN", contentStream.Position + headerSize, buffer.Length);
contentStream.Write(buffer, 0, buffer.Length);
buffer = RecompileUIntList(ndf.Import);
footer.AddEntry("IMPR", contentStream.Position + headerSize, buffer.Length);
contentStream.Write(buffer, 0, buffer.Length);
buffer = RecompileUIntList(ndf.Export);
footer.AddEntry("EXPR", contentStream.Position + headerSize, buffer.Length);
contentStream.Write(buffer, 0, buffer.Length);
buffer = footer.GetBytes();
footer.Offset = (ulong)contentStream.Position + NdfbinHeaderSize;
contentStream.Write(buffer, 0, buffer.Length);
ndf.Footer = footer;
return(contentStream.ToArray());
}
}
protected byte[] RecompileContent()
{
byte[] buffer;
var footer = new NdfFooter();
using (var ms = new MemoryStream())
{
buffer = RecompileObj();
footer.AddEntry("OBJE", ms.Position + 40, buffer.Length);
ms.Write(buffer, 0, buffer.Length);
buffer = GetSingleNdfBlockData("TOPO");
footer.AddEntry("TOPO", ms.Position + 40, buffer.Length);
ms.Write(buffer, 0, buffer.Length);
buffer = GetSingleNdfBlockData("CHNK");
footer.AddEntry("CHNK", ms.Position + 40, buffer.Length);
ms.Write(buffer, 0, buffer.Length);
buffer = GetSingleNdfBlockData("CLAS");
footer.AddEntry("CLAS", ms.Position + 40, buffer.Length);
ms.Write(buffer, 0, buffer.Length);
buffer = GetSingleNdfBlockData("PROP");
footer.AddEntry("PROP", ms.Position + 40, buffer.Length);
ms.Write(buffer, 0, buffer.Length);
buffer = RecompileStrTable(Strings);
footer.AddEntry("STRG", ms.Position + 40, buffer.Length);
ms.Write(buffer, 0, buffer.Length);
buffer = RecompileStrTable(Trans);
footer.AddEntry("TRAN", ms.Position + 40, buffer.Length);
ms.Write(buffer, 0, buffer.Length);
buffer = GetSingleNdfBlockData("IMPR");
footer.AddEntry("IMPR", ms.Position + 40, buffer.Length);
ms.Write(buffer, 0, buffer.Length);
buffer = GetSingleNdfBlockData("EXPR");
footer.AddEntry("EXPR", ms.Position + 40, buffer.Length);
ms.Write(buffer, 0, buffer.Length);
buffer = footer.GetBytes();
ms.Write(buffer, 0, buffer.Length);
buffer = ms.ToArray();
}
Footer = footer;
return(buffer);
}
/// <summary>
/// Reads the footer data which is the Ndfbin Dictionary.
/// </summary>
/// <returns></returns>
protected NdfFooter ReadFooter(Stream ms, NdfHeader head)
{
var footer = new NdfFooter();
ms.Seek((long)head.FooterOffset, SeekOrigin.Begin);
var dwdBuffer = new byte[4];
var qwdbuffer = new byte[8];
ms.Read(dwdBuffer, 0, dwdBuffer.Length);
if (BitConverter.ToUInt32(dwdBuffer, 0) != 809717588)
{
throw new InvalidDataException("Footer doesnt start with TOC0");
}
ms.Read(dwdBuffer, 0, dwdBuffer.Length);
uint footerEntryCount = BitConverter.ToUInt32(dwdBuffer, 0);
for (int i = 0; i < footerEntryCount; i++)
{
var entry = new NdfFooterEntry();
ms.Read(qwdbuffer, 0, qwdbuffer.Length);
entry.Name = Encoding.ASCII.GetString(qwdbuffer).TrimEnd('\0');
ms.Read(qwdbuffer, 0, qwdbuffer.Length);
entry.Offset = BitConverter.ToInt64(qwdbuffer, 0);
ms.Read(qwdbuffer, 0, qwdbuffer.Length);
entry.Size = BitConverter.ToInt64(qwdbuffer, 0);
footer.Entries.Add(entry);
}
return(footer);
}
