/// <summary>
/// Receives a long midi error message.
/// </summary>
/// <param name="buffer">The buffer containing the long midi message error.</param>
/// <param name="timestamp">Not used. A new timestamp is generated.</param>
public override void LongError(MidiBufferStream buffer, long timestamp)
{
if (NextErrorReceiver != null)
{
NextErrorReceiver.LongError(buffer, GetCurrentTimestamp());
}
}
/// <summary>
/// Receives a short midi error message.
/// </summary>
/// <param name="data">The short error message data.</param>
/// <param name="timestamp">Not used. A new timestamp is generated.</param>
public override void ShortError(int data, long timestamp)
{
if (NextErrorReceiver != null)
{
NextErrorReceiver.ShortError(data, GetCurrentTimestamp());
}
}
/// <summary>
/// Handles the long and short error messages.
/// </summary>
/// <param name="umsg">Type of message.</param>
/// <param name="param1">First parameter.</param>
/// <param name="param2">Second parameter.</param>
/// <returns>Returns true if the <paramref name="umsg"/> has been handled.</returns>
private bool HandleErrorMessage(uint umsg, IntPtr param1, IntPtr param2)
{
bool handled = true;
switch (umsg)
{
case NativeMethods.MIM_ERROR:
NextErrorReceiver.ShortError(param1.ToInt32(), param2.ToInt32());
break;
case NativeMethods.MIM_LONGERROR:
var buffer = BufferManager.FindBuffer(param1);
if (buffer != null)
{
NextErrorReceiver.LongError(buffer, param2.ToInt32());
if (AutoReturnBuffers)
{
BufferManager.ReturnBuffer(buffer);
}
}
break;
default:
handled = false;
break;
}
return(handled);
}
/// <summary>
/// Dispatches the <paramref name="record"/> to the appropriate receiver component.
/// </summary>
/// <param name="record">Must not be null.</param>
private void DispatchRecord(MidiPortEvent record)
{
Contract.Requires(record != null);
Check.IfArgumentNull(record, "record");
if (NextReceiver != null)
{
switch (record.RecordType)
{
case MidiPortEventType.MoreData:
case MidiPortEventType.ShortData:
NextReceiver.ShortData(record.Data, (int)record.Timestamp);
break;
case MidiPortEventType.LongData:
NextReceiver.LongData(record.Buffer, (int)record.Timestamp);
break;
}
}
if (NextErrorReceiver != null)
{
switch (record.RecordType)
{
case MidiPortEventType.ShortError:
NextErrorReceiver.ShortError(record.Data, (int)record.Timestamp);
break;
case MidiPortEventType.LongError:
NextErrorReceiver.LongError(record.Buffer, (int)record.Timestamp);
break;
}
}
if (NextPortEventReceiver != null)
{
NextPortEventReceiver.PortEvent(record);
}
}
