public File(string source)
{
if (!System.IO.File.Exists(source))
{
return;
}
_source = source;
bigHeader = new byte[0x10];
refPackHeader = new byte[0x08];
preBuffer = new byte[0x00800000];
stream = new FileStream(source, FileMode.Open, FileAccess.Read, FileShare.Read);
stream.Read(bigHeader, 0, 0x10);
stream.Position = 0;
uint headerSize = HeaderSize;
stream.Read((bigHeader = new byte[headerSize]), 0, (int)headerSize);
Files = new PackedFile[FileCount];
int position = 0x10;
for (int idx = 0; idx < FileCount; ++idx)
{
Files[idx] = new PackedFile();
Files[idx].Offset = FileHelper.Invert(FileHelper.GetUInt(position, bigHeader));
position += 0x04;
Files[idx].Size = FileHelper.Invert(FileHelper.GetUInt(position, bigHeader));
position += 0x04;
Files[idx].Name = FileHelper.GetString(position, bigHeader);
position += Files[idx].Name.Length + 1;
}
}
public bool Contains(PackedFile file)
{
for (int idx = 0; idx < Files.Length; ++idx)
{
if (file == Files[idx])
{
return(true);
}
}
return(false);
}
public uint GetFileSize(PackedFile file)
{
stream.Position = file.Offset;
stream.Read(refPackHeader, 0, 0x08);
if (IsFileCompressed())
{
int size = (((refPackHeader[0x02] << 0x08) + refPackHeader[0x03]) << 0x08) + refPackHeader[0x04];
if ((refPackHeader[0x00] & 0x80) != 0)
{
size = (size << 0x08) + refPackHeader[0x05];
}
return((uint)size);
}
return(file.Size);
}
public byte[] GetFile(PackedFile file, uint length, uint offset = 0)
{
byte[] result;
stream.Position = file.Offset;
stream.Read(refPackHeader, 0, 0x02);
if (IsFileCompressed())
{
result = Decompress(file.Offset, length, offset);
}
else
{
result = new byte[length];
stream.Position = file.Offset + offset;
stream.Read(result, 0, (int)length);
}
return(result);
}
public bool GetIsFileCompressed(PackedFile file)
{
stream.Position = file.Offset;
stream.Read(refPackHeader, 0, 0x08);
return(IsFileCompressed());
}