/// <summary>
/// Takes a span aligned to a major record, and attempts to locate the game setting type.
/// Will throw if the span is misaligned or doesn't start at a valid major record header.
/// </summary>
/// <param name="span">Data beginning at the start of a major record</param>
/// <param name="meta">Game meta information to use in parsing</param>
/// <returns>A response of the GameSettingType if found, or a reason if not.</returns>
public static GetResponse <GameSettingType> GetGameSettingType(ReadOnlyMemorySlice <byte> span, GameConstants meta)
{
var majorMeta = meta.MajorRecordFrame(span);
var edidLoc = UtilityTranslation.FindFirstSubrecord(majorMeta.Content, meta, Constants.EditorID);
if (edidLoc == null)
{
return(GetResponse <GameSettingType> .Fail($"EDID was not located"));
}
var edidMeta = meta.SubrecordFrame(majorMeta.Content.Slice(edidLoc.Value));
var edid = BinaryStringUtility.ProcessWholeToZString(edidMeta.Content);
if (edid.Length == 0)
{
return(GetResponse <GameSettingType> .Fail("No EDID parsed."));
}
if (!TryGetGameSettingType(edid[0], out var settingType))
{
return(GetResponse <GameSettingType> .Fail($"Unknown game setting type: {edid[0]}"));
}
return(GetResponse <GameSettingType> .Succeed(settingType));
}
public static void CompileSetGroupLength(
IEnumerable <Stream> streams,
byte[] bytes)
{
UtilityTranslation.SetGroupLength(bytes, (uint)streams.NotNull().Sum(i => i.Length));
}