public int Compare(MidiEvent x, MidiEvent y)
{
long num = x.AbsoluteTime;
long num2 = y.AbsoluteTime;
if (num == num2)
{
MetaEvent metaEvent = x as MetaEvent;
MetaEvent metaEvent2 = y as MetaEvent;
if (metaEvent != null)
{
if (metaEvent.MetaEventType == MetaEventType.EndTrack)
{
num = 9223372036854775807L;
}
else
{
num = -9223372036854775808L;
}
}
if (metaEvent2 != null)
{
if (metaEvent2.MetaEventType == MetaEventType.EndTrack)
{
num2 = 9223372036854775807L;
}
else
{
num2 = -9223372036854775808L;
}
}
}
return(num.CompareTo(num2));
}
public static bool IsEndTrack(MidiEvent midiEvent)
{
if (midiEvent != null)
{
MetaEvent metaEvent = midiEvent as MetaEvent;
if (metaEvent != null)
{
return(metaEvent.MetaEventType == MetaEventType.EndTrack);
}
}
return(false);
}
public static MetaEvent ReadMetaEvent(BinaryReader br)
{
MetaEventType metaEventType = (MetaEventType)br.ReadByte();
int num = MidiEvent.ReadVarInt(br);
MetaEvent metaEvent = new MetaEvent();
if (metaEventType <= MetaEventType.SetTempo)
{
switch (metaEventType)
{
case MetaEventType.TrackSequenceNumber:
metaEvent = new TrackSequenceNumberEvent(br, num);
goto IL_E7;
case MetaEventType.TextEvent:
case MetaEventType.Copyright:
case MetaEventType.SequenceTrackName:
case MetaEventType.TrackInstrumentName:
case MetaEventType.Lyric:
case MetaEventType.Marker:
case MetaEventType.CuePoint:
case MetaEventType.ProgramName:
case MetaEventType.DeviceName:
metaEvent = new TextEvent(br, num);
goto IL_E7;
default:
if (metaEventType != MetaEventType.EndTrack)
{
if (metaEventType == MetaEventType.SetTempo)
{
metaEvent = new TempoEvent(br, num);
goto IL_E7;
}
}
else
{
if (num != 0)
{
throw new FormatException("End track length");
}
goto IL_E7;
}
break;
}
}
else if (metaEventType <= MetaEventType.TimeSignature)
{
if (metaEventType == MetaEventType.SmpteOffset)
{
metaEvent = new SmpteOffsetEvent(br, num);
goto IL_E7;
}
if (metaEventType == MetaEventType.TimeSignature)
{
metaEvent = new TimeSignatureEvent(br, num);
goto IL_E7;
}
}
else
{
if (metaEventType == MetaEventType.KeySignature)
{
metaEvent = new KeySignatureEvent(br, num);
goto IL_E7;
}
if (metaEventType == MetaEventType.SequencerSpecific)
{
metaEvent = new SequencerSpecificEvent(br, num);
goto IL_E7;
}
}
byte[] array = br.ReadBytes(num);
if (array.Length != num)
{
throw new FormatException("Failed to read metaevent's data fully");
}
return(new RawMetaEvent(metaEventType, 0L, array));
IL_E7:
metaEvent.metaEvent = metaEventType;
metaEvent.metaDataLength = num;
return(metaEvent);
}
public static MidiEvent ReadNextEvent(BinaryReader br, MidiEvent previous)
{
int num = MidiEvent.ReadVarInt(br);
int num2 = 1;
byte b = br.ReadByte();
MidiCommandCode midiCommandCode;
if ((b & 128) == 0)
{
midiCommandCode = previous.CommandCode;
num2 = previous.Channel;
Stream expr_2D = br.BaseStream;
long position = expr_2D.Position;
expr_2D.Position = position - 1L;
}
else if ((b & 240) == 240)
{
midiCommandCode = (MidiCommandCode)b;
}
else
{
midiCommandCode = (MidiCommandCode)(b & 240);
num2 = (int)((b & 15) + 1);
}
MidiEvent midiEvent;
if (midiCommandCode <= MidiCommandCode.ControlChange)
{
if (midiCommandCode <= MidiCommandCode.NoteOn)
{
if (midiCommandCode != MidiCommandCode.NoteOff)
{
if (midiCommandCode != MidiCommandCode.NoteOn)
{
goto IL_154;
}
midiEvent = new NoteOnEvent(br);
goto IL_16A;
}
}
else if (midiCommandCode != MidiCommandCode.KeyAfterTouch)
{
if (midiCommandCode != MidiCommandCode.ControlChange)
{
goto IL_154;
}
midiEvent = new ControlChangeEvent(br);
goto IL_16A;
}
midiEvent = new NoteEvent(br);
goto IL_16A;
}
if (midiCommandCode <= MidiCommandCode.ChannelAfterTouch)
{
if (midiCommandCode == MidiCommandCode.PatchChange)
{
midiEvent = new PatchChangeEvent(br);
goto IL_16A;
}
if (midiCommandCode == MidiCommandCode.ChannelAfterTouch)
{
midiEvent = new ChannelAfterTouchEvent(br);
goto IL_16A;
}
}
else
{
if (midiCommandCode == MidiCommandCode.PitchWheelChange)
{
midiEvent = new PitchWheelChangeEvent(br);
goto IL_16A;
}
if (midiCommandCode == MidiCommandCode.Sysex)
{
midiEvent = SysexEvent.ReadSysexEvent(br);
goto IL_16A;
}
switch (midiCommandCode)
{
case MidiCommandCode.TimingClock:
case MidiCommandCode.StartSequence:
case MidiCommandCode.ContinueSequence:
case MidiCommandCode.StopSequence:
midiEvent = new MidiEvent();
goto IL_16A;
case MidiCommandCode.MetaEvent:
midiEvent = MetaEvent.ReadMetaEvent(br);
goto IL_16A;
}
}
IL_154:
throw new FormatException(string.Format("Unsupported MIDI Command Code {0:X2}", (byte)midiCommandCode));
IL_16A:
midiEvent.channel = num2;
midiEvent.deltaTime = num;
midiEvent.commandCode = midiCommandCode;
return(midiEvent);
}
