public Stream OpenFile(ApplicationPackageManifest.Types.PackageRecord record)
{
long offset = 0;
EncodingEntry enc;
if (record.Flags.HasFlag(ContentFlags.Bundle))
{
offset = record.Offset;
}
if (!CASC.EncodingHandler.GetEntry(record.LoadHash, out enc))
{
return(null);
}
MemoryStream ms = new MemoryStream((int)record.Size);
try {
Stream fstream = CASC.OpenFile(enc.Key);
fstream.Position = offset;
fstream.CopyBytes(ms, (int)record.Size);
ms.Position = 0;
} catch (Exception e) {
if (e is BLTEKeyException exception)
{
Debugger.Log(0, "DataTool", $"[DataTool:CASC]: Missing key: {exception.MissingKey:X16}\r\n");
}
return(null);
}
return(ms);
}
public static Stream OpenFile(ApplicationPackageManifest.Types.PackageRecord packageRecord)
{
if (packageRecord.Flags.HasFlag(ContentFlags.Bundle))
{
return(OpenFile(packageRecord.LoadHash, packageRecord.Offset, (int)packageRecord.Size));
}
else
{
return(OpenFile(packageRecord.LoadHash));
}
}
public static Stream OpenFileUnsafe(ApplicationPackageManifest.Types.PackageRecord record, out ulong salsa)
{
salsa = 0;
if (!CASC.EncodingHandler.GetEntry(record.LoadHash, out EncodingEntry enc))
{
return(null);
}
Stream fstream = CASC.OpenFile(enc.Key);
salsa = ((BLTEStream)fstream).SalsaKey;
return(fstream);
}
public static Stream OpenFile(ApplicationPackageManifest.Types.PackageRecord record)
{
EncodingEntry enc;
if (!CASC.EncodingHandler.GetEntry(record.LoadHash, out enc))
{
return(null);
}
try {
if (record.Flags.HasFlag(ContentFlags.Bundle))
{
if (!BundleCache.ContainsKey(record.LoadHash))
{
using (Stream bundleStream = CASC.OpenFile(enc.Key)) {
byte[] buf = new byte[bundleStream.Length];
bundleStream.Read(buf, 0, (int)bundleStream.Length);
BundleCache[record.LoadHash] = buf;
}
}
MemoryStream stream = new MemoryStream((int)record.Size);
stream.Write(BundleCache[record.LoadHash], (int)record.Offset, (int)record.Size);
stream.Position = 0;
return(stream);
}
return(CASC.OpenFile(enc.Key));
} catch (Exception e) {
if (e is BLTEKeyException exception)
{
#if DEBUG
Debugger.Log(0, "DataTool", $"[DataTool:CASC]: Missing key: {exception.MissingKey:X16}\r\n");
#endif
}
return(null);
}
}
