/// <summary>
/// Determines the type of message received and triggers the correct
/// event in response.
/// </summary>
/// <param name="message">
/// The short Midi message received.
/// </param>
/// <param name="timeStamp">
/// Number of milliseconds that have passed since the input device
/// began recording.
/// </param>
private void DispatchShortMessage(int message, int timeStamp)
{
// Unpack status value.
int status = ShortMessage.UnpackStatus(message);
// If a channel message was received.
if (ChannelMessage.IsChannelMessage(status))
{
// If anyone is listening for channel messages.
if (ChannelMessageReceived != null)
{
// Create channel message.
ChannelMessage msg = new ChannelMessage(message);
// Create channel message event argument.
ChannelMessageEventArgs e =
new ChannelMessageEventArgs(msg, timeStamp);
// Trigger channel message received event.
ChannelMessageReceived(this, e);
}
}
// Else if a system common message was received
else if (SysCommonMessage.IsSysCommonMessage(status))
{
// If anyone is listening for system common messages
if (SysCommonReceived != null)
{
// Create system common message.
SysCommonMessage msg = new SysCommonMessage(message);
// Create system common event argument.
SysCommonEventArgs e = new SysCommonEventArgs(msg, timeStamp);
// Trigger system common received event.
SysCommonReceived(this, e);
}
}
// Else if a system realtime message was received
else if (SysRealtimeMessage.IsSysRealtimeMessage(status))
{
// If anyone is listening for system realtime messages
if (SysRealtimeReceived != null)
{
// Create system realtime message.
SysRealtimeMessage msg = new SysRealtimeMessage(message);
// Create system realtime event argument.
SysRealtimeEventArgs e = new SysRealtimeEventArgs(msg, timeStamp);
// Trigger system realtime received event.
SysRealtimeReceived(this, e);
}
}
}
/// <summary>
/// Handles system common received events.
/// </summary>
/// <param name="sender">
/// The MIDI receiver responsible for the event.
/// </param>
/// <param name="e">
/// Information about the event.
/// </param>
private void SysCommonReceivedHandler(object sender, SysCommonEventArgs e)
{
// Guard.
if (!SlaveEnabled)
{
return;
}
// If the position has changed.
if (e.Message.Type == SysCommonType.SongPositionPointer &&
PositionChanged != null)
{
SongPositionPointer spp =
new SongPositionPointer(tickGenerator.Ppqn, e.Message);
bool wasRunning = IsRunning();
// If the tick Generator is running, stop it momentarily to
// give listeners a chance to update their position when the
// PositionChanged event is raised.
//
// Ideally, any master device sending a song position pointer
// messages would send a stop message first so that the slave
// is not running when the position is changed.
if (wasRunning)
{
tickGenerator.Stop();
}
PositionChanged(this,
new PositionChangedEventArgs(spp.PositionInTicks));
if (MasterEnabled)
{
midiSender.Send(e.Message);
}
// Restart tick generator if it was previously running.
if (wasRunning)
{
tickGenerator.Start();
}
}
}
/// <summary>
/// Determines the type of message received and triggers the correct
/// event in response.
/// </summary>
/// <param name="message">
/// The short Midi message received.
/// </param>
/// <param name="timeStamp">
/// Number of milliseconds that have passed since the input device
/// began recording.
/// </param>
private void DispatchShortMessage(int message, int timeStamp)
{
// Unpack status value.
int status = ShortMessage.UnpackStatus(message);
// If a channel message was received.
if(ChannelMessage.IsChannelMessage(status))
{
// If anyone is listening for channel messages.
if(ChannelMessageReceived != null)
{
// Create channel message.
ChannelMessage msg = new ChannelMessage(message);
// Create channel message event argument.
ChannelMessageEventArgs e =
new ChannelMessageEventArgs(msg, timeStamp);
// Trigger channel message received event.
ChannelMessageReceived(this, e);
}
}
// Else if a system common message was received
else if(SysCommonMessage.IsSysCommonMessage(status))
{
// If anyone is listening for system common messages
if(SysCommonReceived != null)
{
// Create system common message.
SysCommonMessage msg = new SysCommonMessage(message);
// Create system common event argument.
SysCommonEventArgs e = new SysCommonEventArgs(msg, timeStamp);
// Trigger system common received event.
SysCommonReceived(this, e);
}
}
// Else if a system realtime message was received
else if(SysRealtimeMessage.IsSysRealtimeMessage(status))
{
// If anyone is listening for system realtime messages
if(SysRealtimeReceived != null)
{
// Create system realtime message.
SysRealtimeMessage msg = new SysRealtimeMessage(message);
// Create system realtime event argument.
SysRealtimeEventArgs e = new SysRealtimeEventArgs(msg, timeStamp);
// Trigger system realtime received event.
SysRealtimeReceived(this, e);
}
}
}
/// <summary>
/// Handles system common received events.
/// </summary>
/// <param name="sender">
/// The MIDI receiver responsible for the event.
/// </param>
/// <param name="e">
/// Information about the event.
/// </param>
private void SysCommonReceivedHandler(object sender, SysCommonEventArgs e)
{
// Guard.
if(!SlaveEnabled)
return;
// If the position has changed.
if(e.Message.Type == SysCommonType.SongPositionPointer &&
PositionChanged != null)
{
SongPositionPointer spp =
new SongPositionPointer(tickGenerator.Ppqn, e.Message);
bool wasRunning = IsRunning();
// If the tick Generator is running, stop it momentarily to
// give listeners a chance to update their position when the
// PositionChanged event is raised.
//
// Ideally, any master device sending a song position pointer
// messages would send a stop message first so that the slave
// is not running when the position is changed.
if(wasRunning)
tickGenerator.Stop();
PositionChanged(this,
new PositionChangedEventArgs(spp.PositionInTicks));
if(MasterEnabled)
midiSender.Send(e.Message);
// Restart tick generator if it was previously running.
if(wasRunning)
tickGenerator.Start();
}
}
