public void Save(Stream output, bool leaveOpen = false)
{
using (var bw = new BinaryWriterX(output, leaveOpen))
{
//SARCHeader
var header = new SARCHeader {
dataOffset = Files.Aggregate(40 + Files.Sum(afi => usesSFNT ? afi.FileName.Length / 4 * 4 + 20 : 16), (n, afi) => Pad(n, afi.FileName))
};
bw.WriteStruct(header); // filesize is added later
//SFATHeader
bw.WriteStruct(new SFATHeader {
nodeCount = (short)Files.Count
});
//SFAT List + nameList
int nameOffset = 0;
int dataOffset = 0;
foreach (var afi in Files)
{
dataOffset = Pad(dataOffset, afi.FileName);
var fileLen = (int)afi.FileData.Length;
var sfatEntry = new SFATEntry
{
nameHash = usesSFNT ? SimpleHash.Create(afi.FileName, 0x65) : Convert.ToUInt32(afi.FileName.Substring(2, 8), 16),
SFNTOffset = (short)(usesSFNT ? nameOffset : 0),
filenameFlags = (short)(usesSFNT ? 0x100 : 0),
dataStart = dataOffset,
dataEnd = dataOffset + fileLen
};
bw.WriteStruct(sfatEntry);
nameOffset += afi.FileName.Length / 4 + 1;
dataOffset = sfatEntry.dataEnd;
}
bw.WriteStruct(new SFNTHeader());
if (usesSFNT)
{
foreach (var afi in Files)
{
bw.WriteASCII(afi.FileName.PadRight(afi.FileName.Length / 4 * 4 + 4, '\0'));
}
}
bw.WriteAlignment(header.dataOffset);
foreach (var afi in Files)
{
bw.Write(new byte[Pad((int)bw.BaseStream.Length, afi.FileName) - (int)bw.BaseStream.Length]); // padding
afi.FileData.CopyTo(bw.BaseStream);
}
bw.BaseStream.Position = 0;
header.fileSize = (int)bw.BaseStream.Length;
bw.WriteStruct(header);
}
}
public Archive(Stream stream)
{
byte[] header = new byte[4];
stream.Read(header, 0, 4);
stream.Seek(-4, SeekOrigin.Current);
if (header[0] == 'Y')
{
archiveFileStream = new Yaz0Stream(stream);
}
else
{
archiveFileStream = stream;
}
using (EndianBinaryReader er = new EndianBinaryReader(archiveFileStream, Encoding.ASCII, true, Endian.Big))
{
archiveHeader = new ArchiveHeader(er);
sfatHeader = new SFATHeader(er);
sfatEntries = new SFATEntry[sfatHeader.NodeCount];
for (int i = 0; i < sfatHeader.NodeCount; i++)
{
sfatEntries[i] = new SFATEntry(er);
}
er.Skip(8); // SFNT, 0x00, 0x08, 0x00, 0x00
sfatStringTable = new string[sfatHeader.NodeCount];
for (int i = 0; i < sfatHeader.NodeCount; i++)
{
// These strings are aligned to 4 bytes.
//while (er.PeekReadByte() == 0)
// er.ReadByte();
sfatStringTable[i] = Encoding.ASCII.GetString(er.ReadBytesUntil(0));
}
}
for (int i = 0; i < sfatEntries.Length; i++)
{
sfatEntries[i].FileName = sfatStringTable[sfatEntries[i].FileNameTableOffset / 4];
}
fileDictionary = new Dictionary <string, ArchiveEntry>(sfatEntries.Length);
for (int i = 0; i < sfatEntries.Length; i++)
{
string name = sfatStringTable[sfatEntries[i].FileNameTableOffset / 4];
uint size = sfatEntries[i].DataOffsetEnd - sfatEntries[i].DataOffsetStart;
fileDictionary.Add(name, new ArchiveEntry(name, sfatEntries[i].DataOffsetStart + archiveHeader.DataOffset, size, sfatEntries[i].FileType));
}
}
