public async ValueTask <IMemoryOwner <byte> > ReadEntryAsync(PakEntry entry, CancellationToken cancellationToken = default)
{
var taskData = entry.ReadAsync(SourceStream, cancellationToken);
var buf = taskData.IsCompletedSuccessfully ? taskData.Result : await taskData.ConfigureAwait(false);
if (entry.IsEncrypted)
{
if (_aesProvider is null)
{
throw new PakEncryptedException("Pak file contains encrypted entries. AES encryption key is necessary for reading this asset.");
}
_aesProvider.Decrypt(buf.Memory);
}
if (entry.IsCompressed)
{
var decompressTask = UnrealCompression.DecompressAsync(buf.Memory, entry, cancellationToken);
var result = decompressTask.IsCompletedSuccessfully ? decompressTask.Result : await decompressTask.ConfigureAwait(false);
buf.Dispose();
return(result);
}
else
{
return(buf);
}
}
public IMemoryOwner <byte> ReadEntry(PakEntry entry)
{
var buf = entry.Read(SourceStream);
if (entry.IsEncrypted)
{
if (_aesProvider is null)
{
throw new PakEncryptedException("Pak file contains encrypted entries. AES encryption key is necessary for reading this asset.");
}
_aesProvider.Decrypt(buf.Memory);
}
if (entry.IsCompressed)
{
var decompressed = UnrealCompression.Decompress(buf.Memory, entry);
buf.Dispose();
return(decompressed);
}
else
{
return(buf);
}
}