/// <summary>Parse a voice event from the data stream.</summary>
/// <param name="deltaTime">The previously parsed delta-time for this event.</param>
/// <param name="messageType">The previously parsed type of message we're expecting to find.</param>
/// <param name="channel">The previously parsed channel for this message.</param>
/// <param name="data">The data stream from which to read the event information.</param>
/// <param name="pos">The position of the start of the event information.</param>
/// <returns>The parsed voice MIDI event.</returns>
private static MidiEvent ParseVoiceEvent(long deltaTime, byte messageType, byte channel, byte [] data, ref long pos)
{
try
{
MidiEvent tempEvent = null;
// Create the correct voice event based on its message id/type
switch(messageType)
{
// NOTE OFF
case 0x8:
tempEvent = new NoteOff(deltaTime, channel, data[pos], data[pos+1]);
pos += 2;
break;
// NOTE ON
case 0x9:
tempEvent = new NoteOn(deltaTime, channel, data[pos], data[pos+1]);
pos += 2;
break;
// AFTERTOUCH
case 0xA:
tempEvent = new Aftertouch(deltaTime, channel, data[pos], data[pos+1]);
pos += 2;
break;
// CONTROLLER
case 0xB:
tempEvent = new Controller(deltaTime, channel, data[pos], data[pos+1]);
pos += 2;
break;
// PROGRAM CHANGE
case 0xC:
tempEvent = new ProgramChange(deltaTime, channel, data[pos]);
pos += 1;
break;
// CHANNEL PRESSURE
case 0xD:
tempEvent = new ChannelPressure(deltaTime, channel, data[pos]);
pos += 1;
break;
// PITCH WHEEL
case 0xE:
int position = ((data[pos] << 8) | data[pos+1]);
byte upper, lower;
MidiEvent.Split14BitsToBytes(position, out upper, out lower);
tempEvent = new PitchWheel(deltaTime, channel, upper, lower);
pos += 2;
break;
// UH OH!
default: throw new ArgumentOutOfRangeException("messageType", messageType, "Not a voice message.");
}
// Return the newly parsed event
return tempEvent;
}
// Something bad happened; wrap it in a parser exception
catch(Exception exc) { throw new MidiParserException("Unable to parse voice MIDI event.", exc, pos); }
}
// TODO
private void NoteOn( int note, int velocity )
{
if ( velocity > 126 )
{
velocity = 126;
}
byte temp = (byte)( note / 10 );
byte velocityValue = (byte)(velocity);
if (temp == LastNoteNo)
return;
if (LastNoteNo != 255)
NoteOff();
// Convert the raw val to a MIDI note by dividing by 10
LastNoteNo = temp;
Toub.Sound.Midi.NoteOn _n = new NoteOn( 0, 0x0, LastNoteNo, velocityValue );
Toub.Sound.Midi.MidiPlayer.Play(_n);
}
private static MidiEvent ParseVoiceEvent(long deltaTime, byte messageType, byte channel, byte[] data, ref long pos)
{
MidiEvent event3;
try
{
MidiEvent event2 = null;
switch (messageType)
{
case 8:
event2 = new NoteOff(deltaTime, channel, data[(int) ((IntPtr) pos)], data[(int) ((IntPtr) (pos + 1L))]);
pos += 2L;
break;
case 9:
event2 = new NoteOn(deltaTime, channel, data[(int) ((IntPtr) pos)], data[(int) ((IntPtr) (pos + 1L))]);
pos += 2L;
break;
case 10:
event2 = new Aftertouch(deltaTime, channel, data[(int) ((IntPtr) pos)], data[(int) ((IntPtr) (pos + 1L))]);
pos += 2L;
break;
case 11:
event2 = new Controller(deltaTime, channel, data[(int) ((IntPtr) pos)], data[(int) ((IntPtr) (pos + 1L))]);
pos += 2L;
break;
case 12:
event2 = new ProgramChange(deltaTime, channel, data[(int) ((IntPtr) pos)]);
pos += 1L;
break;
case 13:
event2 = new ChannelPressure(deltaTime, channel, data[(int) ((IntPtr) pos)]);
pos += 1L;
break;
case 14:
{
byte num2;
byte num3;
int bits = (data[(int) ((IntPtr) pos)] << 8) | data[(int) ((IntPtr) (pos + 1L))];
MidiEvent.Split14BitsToBytes(bits, out num2, out num3);
event2 = new PitchWheel(deltaTime, channel, num2, num3);
pos += 2L;
break;
}
default:
throw new ArgumentOutOfRangeException("messageType", messageType, "Not a voice message.");
}
event3 = event2;
}
catch (Exception exception)
{
throw new MidiParserException("Unable to parse voice MIDI event.", exception, pos);
}
return event3;
}