public PackagedFileInfo WriteFile(AbstractFileInfo info)
{
// Assume that all files are written uncompressed (worst-case) when calculating package sizes
uint size = info.Size();
if (_streams.Last().Position + size > MaxPackageSize)
{
// Start a new package file if the current one is full.
string partPath = Package.MakePartFilename(_path, _streams.Count);
var nextPart = File.Open(partPath, FileMode.Create, FileAccess.Write);
_streams.Add(nextPart);
}
Stream stream = _streams.Last();
var packaged = new PackagedFileInfo
{
PackageStream = stream,
Name = info.Name,
UncompressedSize = size,
ArchivePart = (UInt32)(_streams.Count - 1),
OffsetInFile = (UInt32)stream.Position,
Flags = BinUtils.MakeCompressionFlags(Compression, CompressionLevel)
};
Stream packagedStream = info.MakeStream();
byte[] compressed;
try
{
using (var reader = new BinaryReader(packagedStream, Encoding.UTF8, true))
{
byte[] uncompressed = reader.ReadBytes((int)reader.BaseStream.Length);
compressed = BinUtils.Compress(uncompressed, Compression, CompressionLevel);
stream.Write(compressed, 0, compressed.Length);
}
}
finally
{
info.ReleaseStream();
}
packaged.SizeOnDisk = (UInt32)(stream.Position - packaged.OffsetInFile);
packaged.Crc = Crc32.Compute(compressed, 0);
int padLength = PaddingLength();
if (stream.Position % padLength <= 0)
{
return(packaged);
}
if ((_package.Metadata.Flags & PackageFlags.Solid) == 0)
{
// Pad the file to a multiple of 64 bytes
var pad = new byte[padLength - stream.Position % padLength];
for (var i = 0; i < pad.Length; i++)
{
pad[i] = 0xAD;
}
stream.Write(pad, 0, pad.Length);
}
return(packaged);
}
