public void Save(Stream output)
{
using (var bw = new BinaryWriterX(output))
{
//Header
bw.WriteASCII("XBB");
bw.Write((byte)1);
bw.Write(Files.Count());
bw.BaseStream.Position = 0x20;
var offset = 0x20 + Files.Sum(e => e.FileName.Length + 1 + 0x18);
offset = offset + 0x7f & ~0x7f;
var nameOffset = 0x20 + Files.Count() * 0x18;
//FileEntries
foreach (var file in Files)
{
bw.Write(offset);
bw.Write((uint)file.FileSize);
bw.Write(nameOffset);
bw.Write(XbbHash.Create(file.FileName));
offset += (int)file.FileSize;
offset = offset + 0x7f & ~0x7f;
nameOffset += file.FileName.Length + 1;
}
//Hash table
var files = Files.OrderBy(e => XbbHash.Create(e.FileName)).ToList();
for (int i = 0; i < files.Count(); i++)
{
var hash = XbbHash.Create(files[i].FileName);
bw.Write(hash);
bw.Write(Files.FindIndex(e => XbbHash.Create(e.FileName) == hash));
}
//nameList
foreach (var file in Files)
{
bw.WriteASCII(file.FileName);
bw.Write((byte)0);
}
//FileData
foreach (var file in Files)
{
bw.WriteAlignment(0x80);
file.FileData.CopyTo(bw.BaseStream);
}
bw.WriteAlignment(0x80);
}
}
public void Save(Stream output, IList <IArchiveFileInfo> files)
{
var entryPosition = _headerSize;
var hashEntryPosition = entryPosition + files.Count * _entrySize;
var namePosition = hashEntryPosition + files.Count * _hashEntrySize;
using var bw = new BinaryWriterX(output);
// Write names
bw.BaseStream.Position = namePosition;
var nameDictionary = new Dictionary <UPath, int>();
foreach (var file in files)
{
if (!nameDictionary.ContainsKey(file.FilePath))
{
nameDictionary.Add(file.FilePath, (int)bw.BaseStream.Position);
}
bw.WriteString(file.FilePath.ToRelative().FullName, Encoding.ASCII, false);
}
var dataPosition = (bw.BaseStream.Position + 0x7F) & ~0x7F;
// Write files
bw.BaseStream.Position = dataPosition;
var xbbHash = new XbbHash();
var fileEntries = new List <XbbFileEntry>();
var hashEntries = new List <XbbHashEntry>();
foreach (var file in files.Cast <ArchiveFileInfo>())
{
var offset = bw.BaseStream.Position;
var writtenSize = file.SaveFileData(bw.BaseStream, null);
bw.WriteAlignment(0x80);
var hash = xbbHash.ComputeValue(file.FilePath.ToRelative().FullName);
fileEntries.Add(new XbbFileEntry
{
offset = (int)offset,
size = (int)writtenSize,
nameOffset = nameDictionary[file.FilePath],
hash = hash
});
hashEntries.Add(new XbbHashEntry
{
hash = hash,
index = fileEntries.Count - 1
});
}
// Write file entries
bw.BaseStream.Position = entryPosition;
bw.WriteMultiple(fileEntries);
// Write hash entries
bw.BaseStream.Position = hashEntryPosition;
bw.WriteMultiple(hashEntries.OrderBy(x => x.hash));
// Write header
bw.BaseStream.Position = 0;
bw.WriteType(new XbbHeader
{
entryCount = files.Count
});
}
