void CTrackList::examineMidiEvent(CMidiEvent event)
{
int chan;
chan = event.channel();
assert (chan < MAX_MIDI_CHANNELS && chan >= 0);
if (chan < MAX_MIDI_CHANNELS && chan >= 0)
{
if (event.type() == MIDI_NOTE_ON)
{
m_midiActiveChannels[chan] = true;
// count each note so we can guess the key signature
if (event.note() >= 0 && event.note() < MAX_MIDI_NOTES)
m_noteFrequency[chan][event.note()]++;
// If we have a note and no patch then default to grand piano patch
if (m_midiFirstPatchChannels[chan] == -1)
m_midiFirstPatchChannels[chan] = GM_PIANO_PATCH;
}
if (event.type() == MIDI_PROGRAM_CHANGE && m_midiActiveChannels[chan] == false)
m_midiFirstPatchChannels[chan] = event.programme();
}
}
//! add a midi event to be played immediately
void CMidiDeviceRt::playMidiEvent(const CMidiEvent & event)
{
if (m_midiPorts[1] < 0)
return;
unsigned int channel;
std::vector<unsigned char> message;
channel = event.channel() & 0x0f;
switch(event.type())
{
case MIDI_NOTE_OFF: // NOTE_OFF
message.push_back( channel | MIDI_NOTE_OFF );
message.push_back( event.note());
message.push_back( event.velocity());
break;
case MIDI_NOTE_ON: // NOTE_ON
message.push_back( channel | MIDI_NOTE_ON );
message.push_back( event.note());
message.push_back( event.velocity());
break;
case MIDI_NOTE_PRESSURE: //POLY_AFTERTOUCH: 3 bytes
message.push_back( channel | MIDI_NOTE_PRESSURE);
message.push_back( event.data1());
message.push_back( event.data2());
break;
case MIDI_CONTROL_CHANGE: //CONTROL_CHANGE:
message.push_back( channel | MIDI_CONTROL_CHANGE);
message.push_back( event.data1());
message.push_back( event.data2());
break;
case MIDI_PROGRAM_CHANGE: //PROGRAM_CHANGE:
message.push_back( channel | MIDI_PROGRAM_CHANGE);
message.push_back( event.programme());
break;
case MIDI_CHANNEL_PRESSURE: //AFTERTOUCH: 2 bytes only
message.push_back( channel | MIDI_CHANNEL_PRESSURE);
message.push_back( event.data1());
break;
case MIDI_PITCH_BEND: //PITCH_BEND:
message.push_back( channel | MIDI_PITCH_BEND);
message.push_back( event.data1());
message.push_back( event.data2());
break;
case MIDI_PB_collateRawMidiData: //used for a SYSTEM_EVENT
if (m_rawDataIndex < arraySize(m_savedRawBytes))
m_savedRawBytes[m_rawDataIndex++] = event.data1();
return; // Don't output any thing yet so just return
case MIDI_PB_outputRawMidiData: //used for a SYSTEM_EVENT
for (size_t i = 0; i < m_rawDataIndex; i++)
message.push_back( m_savedRawBytes[i]);
m_rawDataIndex = 0;
break;
}
m_midiout->sendMessage( &message );
//event.printDetails(); // useful for debugging
}