public SubrecordMemoryFrame ReadSubrecordMemoryFrame(IBinaryReadStream stream, RecordType targetType, bool readSafe = false)
{
var meta = GetSubrecord(stream);
if (meta.RecordType != targetType)
{
throw new ArgumentException($"Unexpected header type: {meta.RecordType}");
}
return(new SubrecordMemoryFrame(meta, stream.ReadMemory(meta.TotalLength, readSafe: readSafe)));
}
public bool TryReadSubrecordMemoryFrame(IBinaryReadStream stream, RecordType targetType, out SubrecordMemoryFrame frame, bool readSafe = false)
{
if (!TryGetSubrecord(stream, targetType, out var meta))
{
frame = default;
return(false);
}
frame = new SubrecordMemoryFrame(meta, stream.ReadMemory(meta.TotalLength, readSafe: readSafe));
return(true);
}
public bool TryReadGroupMemoryFrame(IBinaryReadStream stream, out GroupMemoryFrame frame, bool checkIsGroup = true, bool readSafe = true)
{
if (!TryGetGroup(stream, out var meta, checkIsGroup: checkIsGroup))
{
frame = default;
return(false);
}
frame = new GroupMemoryFrame(meta, stream.ReadMemory(checked ((int)meta.TotalLength), readSafe));
return(true);
}
public static ReadOnlyMemorySlice <byte> LockExtractMemory(IBinaryReadStream stream, long min, long max)
{
lock (stream)
{
stream.Position = min;
var size = checked ((int)(max - min));
if (stream.IsPersistantBacking)
{
return(stream.ReadMemory(size));
}
else
{
byte[] data = new byte[size];
stream.Read(data);
return(data);
}
}
}
public SubrecordMemoryFrame ReadSubrecordMemoryFrame(IBinaryReadStream stream, bool readSafe = false)
{
var meta = GetSubrecord(stream);
return(new SubrecordMemoryFrame(meta, stream.ReadMemory(meta.TotalLength, readSafe: readSafe)));
}
public MajorRecordMemoryFrame ReadMajorRecordMemoryFrame(IBinaryReadStream stream, bool readSafe = false)
{
var meta = GetMajorRecord(stream);
return(new MajorRecordMemoryFrame(meta, stream.ReadMemory(checked ((int)meta.TotalLength), readSafe: readSafe)));
}
public GroupMemoryFrame ReadGroupMemoryFrame(IBinaryReadStream stream, bool readSafe = true)
{
var meta = GetGroup(stream);
return(new GroupMemoryFrame(meta, stream.ReadMemory(checked ((int)meta.TotalLength), readSafe)));
}
/// <summary>
/// Reads a ZString from the binary stream
/// </summary>
/// <param name="stream">Stream to read from</param>
/// <param name="length">Length of the zstring</param>
/// <returns>ZString of desired length</returns>
public static string ReadZString(this IBinaryReadStream stream, int length)
{
return(BinaryStringUtility.ToZString(stream.ReadMemory(length)));
}
public VariableHeader ReadVariableMeta(IBinaryReadStream stream) => new VariableHeader(this, stream.ReadMemory(this.HeaderLength));