void JackAudioDriver::makeTrackOutputs( Song* pSong )
{

	// Only execute the body of this function if a per-track
	// creation of the output ports is desired.
	if( Preferences::get_instance()->m_bJackTrackOuts == false )
		return;

	InstrumentList * pInstruments = pSong->get_instrument_list();
	Instrument * pInstr;
	int nInstruments = ( int ) pInstruments->size();

	// create dedicated channel output ports
	WARNINGLOG( QString( "Creating / renaming %1 ports" ).arg( nInstruments ) );

	int nTrackCount = 0;

	// Resets the `track_map' matrix.
	for( int i = 0 ; i < MAX_INSTRUMENTS ; i++ ){
		for ( int j = 0 ; j < MAX_COMPONENTS ; j++ ){
			track_map[i][j] = 0;
		}
	}
	// Creates a new output track or reassigns an existing one for
	// each component of each instrument and stores the result in
	// the `track_map'.
	for ( int n = 0; n <= nInstruments - 1; n++ ) {
		pInstr = pInstruments->get( n );
		for (std::vector<InstrumentComponent*>::iterator it = pInstr->get_components()->begin() ; it != pInstr->get_components()->end(); ++it) {
			InstrumentComponent* pCompo = *it;
			setTrackOutput( nTrackCount, pInstr, pCompo, pSong);
			track_map[pInstr->get_id()][pCompo->get_drumkit_componentID()] = nTrackCount;
			nTrackCount++;
		}
	}
	// clean up unused ports
	jack_port_t *p_L, *p_R;
	for ( int n = nTrackCount; n < track_port_count; n++ ) {
		p_L = track_output_ports_L[n];
		p_R = track_output_ports_R[n];
		track_output_ports_L[n] = 0;
		jack_port_unregister( m_pClient, p_L );
		track_output_ports_R[n] = 0;
		jack_port_unregister( m_pClient, p_R );
	}

	track_port_count = nTrackCount;
}
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/**
 * Make sure the number of track outputs match the instruments in @a song , and name the ports.
 */
void JackOutput::makeTrackOutputs( Song * song )
{

	/// Disable Track Outputs
	if( Preferences::get_instance()->m_bJackTrackOuts == false )
		return;
	///

	InstrumentList * instruments = song->get_instrument_list();
	Instrument * instr;
	int nInstruments = ( int )instruments->size();

	// create dedicated channel output ports
	WARNINGLOG( QString( "Creating / renaming %1 ports" ).arg( nInstruments ) );

	int p_trackCount = 0;

	for( int i = 0 ; i < MAX_INSTRUMENTS ; i++ ){
		for ( int j = 0 ; j < MAX_COMPONENTS ; j++ ){
			track_map[i][j] = 0;
		}
	}

	for ( int n = nInstruments - 1; n >= 0; n-- ) {
		instr = instruments->get( n );
		for (std::vector<InstrumentComponent*>::iterator it = instr->get_components()->begin() ; it != instr->get_components()->end(); ++it) {
			InstrumentComponent* pCompo = *it;
			setTrackOutput( p_trackCount, instr , pCompo, song);
			track_map[instr->get_id()][pCompo->get_drumkit_componentID()] = p_trackCount;
			p_trackCount++;
		}
	}
	// clean up unused ports
	jack_port_t *p_L, *p_R;
	for ( int n = p_trackCount; n < track_port_count; n++ ) {
		p_L = track_output_ports_L[n];
		p_R = track_output_ports_R[n];
		track_output_ports_L[n] = 0;
		jack_port_unregister( client, p_L );
		track_output_ports_R[n] = 0;
		jack_port_unregister( client, p_R );
	}

	track_port_count = p_trackCount;
}