static private MidiMetaMessage ParseMidiMetaMessage(MidiFileFormatReader mffr)
{
MidiMetaMessage result = null;
// Get message type
EMetaEventType type = (EMetaEventType)mffr.ReadUInt8();
// Get body length
uint length = mffr.ReadVarLengthQuantity();
switch (type)
{
case EMetaEventType.TrackSequenceNumber:
result = new MidiMetaTrackSequenceNumberMessage(mffr.ReadUInt16());
break;
case EMetaEventType.TextEvent:
case EMetaEventType.Copyright:
case EMetaEventType.SequenceTrackName:
case EMetaEventType.TrackInstrumentName:
case EMetaEventType.Lyric:
case EMetaEventType.Marker:
case EMetaEventType.CuePoint:
case EMetaEventType.ProgramName:
case EMetaEventType.DeviceName:
case EMetaEventType.MidiChannel:
result = new MidiMetaTextMessage(type, mffr.ReadString(length));
break;
case EMetaEventType.MidiPort:
result = new MidiMetaMidiPortMessage(mffr.ReadUInt8());
break;
case EMetaEventType.EndTrack:
// No extra data for the end of track message
result = new MidiMetaMessage(type);
break;
case EMetaEventType.SetTempo:
result = new MidiMetaTempoMessage(mffr.ReadUInt24());
break;
case EMetaEventType.SmpteOffset:
break;
case EMetaEventType.TimeSignature:
result = new MidiMetaTimeSignatureMessage(mffr.ReadUInt8(), mffr.ReadUInt8(), mffr.ReadUInt8(), mffr.ReadUInt8());
break;
case EMetaEventType.KeySignature:
result = new MidiMetaKeySignatureMessage(mffr.ReadUInt8(), (mffr.ReadUInt8() != 0));
break;
case EMetaEventType.SequencerSpecific:
// Read body
byte[] body = new byte[length];
for (int i = 0; i < length; i++)
{
body[i] = mffr.ReadUInt8();
}
result = new MidiMetaMessage(type, body);
break;
default:
throw new FormatException(string.Format("Found unknown or unsupported metaevent code {0}", type));
}
return(result);
}
public SerMidiMetaKeySignatureMessage(MidiMetaKeySignatureMessage msg)
: base(msg)
{
this.sharpsFlats = msg.SharpsFlat;
this.minor = msg.Minor;
}