public void Write(Stream stream)
{
uint filesSize = (uint)FMDX_DATA_PREFIX.Length;
foreach (FMDX.File file in this.Files)
{
filesSize += NumberUtil.Align((uint)file.Data.Length, 0x10);
}
using (BinaryWriter writer = new BinaryWriter(stream, Encoding.UTF8, true)) {
long fmdxStartOffset = writer.BaseStream.Position;
writer.WriteFixedString(4, FMDX_MAGIC);
writer.Write(filesSize);
writer.Write((uint)this.Files.Length);
writer.Write((uint)1); // Always 1.
writer.Write(new byte[68]); // Padding; always observed to be 0.
uint offset = FMDX_HEADER_SIZE + (uint)this.Files.Length * FMDX_FILE_HEADER_SIZE + (uint)FMDX_DATA_PREFIX.Length;
foreach (FMDX.File file in this.Files)
{
WriteFile(writer, file, offset, fmdxStartOffset);
offset += NumberUtil.Align((uint)file.Data.Length, 0x10);
}
writer.Write(FMDX_DATA_PREFIX);
}
}
private void WriteFileSet(Stream stream, FileSet fileSet)
{
PACKFSHD fileSetHeader = new PACKFSHD();
GENESTRT fileSetNameTable = new GENESTRT();
fileSetHeader.Unknown = 0x10000;
fileSetHeader.DataOffset = 0; // Filled in later.
foreach (File file in fileSet.Files)
{
PACKFSHD.FileEntry fileEntry = new PACKFSHD.FileEntry();
fileEntry.NameIndex = fileSetNameTable.AddString(file.Name);
fileEntry.Unknown = 0x2;
fileEntry.Offset = 0; // Filled in later.
fileEntry.UncompressedSize = file.UncompressedSize;
fileEntry.CompressedSize = (uint)file.RawData.Length;
fileSetHeader.Files.Add(fileEntry);
}
SectionSet fileSetSections = new SectionSet();
fileSetSections.Add(new ENDILTLE());
fileSetSections.Add(fileSetHeader);
fileSetSections.Add(fileSetNameTable);
fileSetSections.Add(new GENEEOF());
ulong headersSize;
using (MemoryStream sizeTestStream = new MemoryStream()) {
SectionIO.WriteAll(sizeTestStream, fileSetSections);
headersSize = (ulong)sizeTestStream.Length;
}
ulong currOffset = NumberUtil.Align(headersSize, 0x10);
fileSetHeader.DataOffset = (uint)currOffset - 0x10; // Offset excludes ENDILTLE.
foreach (PACKFSHD.FileEntry fileEntry in fileSetHeader.Files)
{
fileEntry.Offset = currOffset;
currOffset = NumberUtil.Align(currOffset + fileEntry.CompressedSize, 0x10);
}
SectionIO.WriteAll(stream, fileSetSections);
foreach (File file in fileSet.Files)
{
stream.Write(file.RawData);
stream.PadTo(0x10);
}
}
private static void WriteFile(BinaryWriter writer, FMDX.File file, uint offset, long fmdxStartOffset)
{
writer.WriteFixedString(128, file.Path);
writer.Write(offset);
writer.Write((uint)file.Data.Length);
writer.Write(new byte[8]); // Padding; always observed to be 0.
long pos = writer.BaseStream.Position;
writer.BaseStream.Seek(fmdxStartOffset + offset, SeekOrigin.Begin);
writer.Write(file.Data);
uint padding = NumberUtil.Align((uint)file.Data.Length, 0x10) - (uint)file.Data.Length;
if (padding > 0)
{
writer.Write(new byte[padding]);
}
writer.BaseStream.Seek(pos, SeekOrigin.Begin);
}
public void Write(Stream stream)
{
GENESTRT nameTable = new GENESTRT();
nameTable.Strings.Add(this.Name);
PACKHEDR packhedr = new PACKHEDR();
packhedr.Unknown1 = 0x10000;
packhedr.NameIndex = 0;
packhedr.DataOffset = 0; // Filled in later.
packhedr.Unknown3 = 1;
packhedr.Hash = new byte[16]; // TODO
PACKTOC toc = new PACKTOC();
byte[] fileData;
using (MemoryStream fileStream = new MemoryStream()) {
this.WriteFiles(fileStream, toc, nameTable);
fileData = fileStream.ToArray();
}
PACKFSLS fsls = new PACKFSLS();
List <byte[]> fileSetDatas = new List <byte[]>();
uint nameIndex = (uint)nameTable.Strings.Count;
foreach (FileSet fileSet in this.FileSets)
{
byte[] fileSetData;
using (MemoryStream fileSetStream = new MemoryStream()) {
this.WriteFileSet(fileSetStream, fileSet);
fileSetData = fileSetStream.ToArray();
}
PACKFSLS.FileSetEntry entry = new PACKFSLS.FileSetEntry();
entry.NameIndex = nameTable.AddString(fileSet.Name);
entry.PackageIndex = 0;
entry.Offset = 0; // Filled in later.
entry.Size = (ulong)fileSetData.Length;
entry.Hash = new MD5CryptoServiceProvider().ComputeHash(fileSetData);
fsls.FileSets.Add(entry);
fileSetDatas.Add(fileSetData);
}
SectionSet set = new SectionSet();
set.Add(new ENDILTLE());
set.Add(packhedr);
set.Add(toc);
set.Add(fsls);
set.Add(nameTable);
set.Add(new GENEEOF());
ulong headersSize;
using (MemoryStream sizeTestStream = new MemoryStream()) {
SectionIO.WriteAll(sizeTestStream, set);
headersSize = (ulong)sizeTestStream.Length;
}
ulong currOffset = NumberUtil.Align(headersSize, 0x800);
packhedr.DataOffset = (uint)currOffset;
foreach (PACKTOC.Entry entry in toc.Entries)
{
if (entry is PACKTOC.UncompressedFileEntry uFileEntry)
{
uFileEntry.Offset = currOffset;
currOffset = NumberUtil.Align(currOffset + uFileEntry.Size, 0x200);
}
else if (entry is PACKTOC.CompressedFileEntry cFileEntry)
{
cFileEntry.Offset = currOffset;
currOffset = NumberUtil.Align(currOffset + cFileEntry.CompressedSize, 0x200);
}
}
currOffset = NumberUtil.Align(currOffset, 0x800);
foreach (PACKFSLS.FileSetEntry fileSetEntry in fsls.FileSets)
{
fileSetEntry.Offset = currOffset;
currOffset = NumberUtil.Align(currOffset + fileSetEntry.Size, 0x800);
}
SectionIO.WriteAll(stream, set);
stream.PadTo(0x800);
stream.Write(fileData);
foreach (byte[] fileSetData in fileSetDatas)
{
stream.PadTo(0x800);
stream.Write(fileSetData);
}
}
