private static void AlignGroupsByRules(
MutagenBinaryReadStream inputStream,
MutagenWriter writer,
AlignmentRules alignmentRules,
RecordLocatorResults fileLocs)
{
while (!inputStream.Complete)
{
// Import until next listed major record
long noRecordLength;
if (fileLocs.GrupLocations.TryGetInDirection(
inputStream.Position,
higher: true,
result: out var nextRec))
{
noRecordLength = nextRec.Value.Location.Min - inputStream.Position;
}
else
{
noRecordLength = inputStream.Remaining;
}
inputStream.WriteTo(writer.BaseStream, (int)noRecordLength);
// If complete overall, return
if (inputStream.Complete)
{
break;
}
var groupMeta = inputStream.GetGroup();
if (!groupMeta.IsGroup)
{
throw new ArgumentException();
}
writer.Write(inputStream.ReadSpan(groupMeta.HeaderLength));
if (!alignmentRules.GroupAlignment.TryGetValue(groupMeta.GroupType, out var groupRules))
{
continue;
}
var storage = new Dictionary <RecordType, List <ReadOnlyMemorySlice <byte> > >();
var rest = new List <ReadOnlyMemorySlice <byte> >();
using (var frame = MutagenFrame.ByLength(inputStream, groupMeta.ContentLength))
{
while (!frame.Complete)
{
var majorMeta = inputStream.GetMajorRecord();
var bytes = inputStream.ReadMemory(checked ((int)majorMeta.TotalLength));
var type = majorMeta.RecordType;
if (groupRules.Contains(type))
{
storage.GetOrAdd(type).Add(bytes);
}
else
{
rest.Add(bytes);
}
}
}
foreach (var rule in groupRules)
{
if (storage.TryGetValue(rule, out var storageBytes))
{
foreach (var item in storageBytes)
{
writer.Write(item);
}
}
}
foreach (var item in rest)
{
writer.Write(item);
}
}
}
public static void Sort(
Func <Stream> streamCreator,
Stream outputStream,
GameMode gameMode)
{
var meta = new ParsingBundle(GameConstants.Get(gameMode));
using var inputStream = new MutagenBinaryReadStream(streamCreator(), meta);
using var locatorStream = new MutagenBinaryReadStream(streamCreator(), meta);
using var writer = new MutagenWriter(outputStream, gameMode, dispose: false);
while (!inputStream.Complete)
{
long noRecordLength;
foreach (var grupLoc in RecordLocator.IterateBaseGroupLocations(locatorStream))
{
noRecordLength = grupLoc.Value - inputStream.Position;
inputStream.WriteTo(writer.BaseStream, (int)noRecordLength);
// If complete overall, return
if (inputStream.Complete)
{
return;
}
var groupMeta = inputStream.GetGroup();
if (!groupMeta.IsGroup)
{
throw new ArgumentException();
}
var storage = new Dictionary <FormID, List <ReadOnlyMemorySlice <byte> > >();
using (var grupFrame = new MutagenFrame(inputStream).SpawnWithLength(groupMeta.TotalLength))
{
inputStream.WriteTo(writer.BaseStream, meta.Constants.GroupConstants.HeaderLength);
locatorStream.Position = grupLoc.Value;
foreach (var rec in RecordLocator.ParseTopLevelGRUP(locatorStream))
{
MajorRecordHeader majorMeta = inputStream.GetMajorRecord();
storage.TryCreateValue(rec.FormID).Add(inputStream.ReadMemory(checked ((int)majorMeta.TotalLength), readSafe: true));
if (grupFrame.Complete)
{
continue;
}
GroupHeader subGroupMeta = inputStream.GetGroup();
if (subGroupMeta.IsGroup)
{
storage.TryCreateValue(rec.FormID).Add(inputStream.ReadMemory(checked ((int)subGroupMeta.TotalLength), readSafe: true));
}
}
}
foreach (var item in storage.OrderBy((i) => i.Key.ID))
{
foreach (var bytes in item.Value)
{
writer.Write(bytes);
}
}
}
inputStream.WriteTo(writer.BaseStream, (int)inputStream.Remaining);
}
}