NotePlayHandle: send correct MidiNoteOff events if base note changed

When changing an InstrumentTrack's base note while NotePlayHandles are
active, they will send a wrong MidiNoteOff event due to the masterKey()
translation in InstrumentTrack::processOutEvent().

Therefore in NotePlayHandle remember the original base note value and
add the difference between original and current base note to the value
returned by NotePlayHandle::key(). Fixes hanging notes in MIDI-based
instruments such as ZynAddSubFX.

Furthermore some coding style improvements.

Closes #3146975.
(cherry picked from commit a9717c0cc3)

include/InstrumentTrack.h

@@ -88,12 +88,12 @@ public:
 	void playNote( notePlayHandle * _n, sampleFrame * _working_buffer );
 
 	QString instrumentName() const;
-	inline const Instrument * instrument() const
+	const Instrument *instrument() const
 	{
 		return m_instrument;
 	}
 
-	inline Instrument * instrument()
+	Instrument *instrument()
 	{
 		return m_instrument;
 	}
@@ -108,7 +108,7 @@ public:
 	int masterKey( int _midi_key ) const;
 
 	// translate pitch to midi-pitch [0,16383]
-	inline int midiPitch() const
+	int midiPitch() const
 	{
 		return (int)( ( m_pitchModel.value()+100 ) * 16383 ) / 200;
 	}
@@ -135,17 +135,17 @@ public:
 	// load instrument whose name matches given one
 	Instrument * loadInstrument( const QString & _instrument_name );
 
-	inline AudioPort * audioPort()
+	AudioPort * audioPort()
 	{
 		return &m_audioPort;
 	}
 
-	inline MidiPort * midiPort()
+	MidiPort * midiPort()
 	{
 		return &m_midiPort;
 	}
 
-	Piano * pianoModel()
+	Piano *pianoModel()
 	{
 		return &m_piano;
 	}

include/note_play_handle.h

@@ -56,8 +56,9 @@ public:
 	virtual ~notePlayHandle();
 
 	virtual void setVolume( const volume_t _volume = DefaultVolume );
-	
-	int getMidiVelocity() const;
+
+	int midiVelocity() const;
+	int midiKey() const;
 
 	const float & frequency() const
 	{
@@ -84,7 +85,7 @@ public:
 	inline fpp_t framesLeftForCurrentPeriod() const
 	{
 		return (fpp_t) qMin<f_cnt_t>( framesLeft(),
-				engine::getMixer()->framesPerPeriod() );
+										engine::getMixer()->framesPerPeriod() );
 	}
 
 
@@ -130,16 +131,21 @@ public:
 	float volumeLevel( const f_cnt_t _frame );
 
 	// returns instrument-track this note-play-handle plays
-	inline InstrumentTrack * instrumentTrack()
+	const InstrumentTrack *instrumentTrack() const
 	{
 		return m_instrumentTrack;
 	}
 
-	// returns whether note is a base-note, e.g. is not part of an arpeggio
-	// or a chord
-	inline bool isBaseNote() const
+	InstrumentTrack *instrumentTrack()
 	{
-		return m_baseNote;
+		return m_instrumentTrack;
+	}
+
+	// returns whether note is a top note, e.g. is not part of an arpeggio
+	// or a chord
+	inline bool isTopNote() const
+	{
+		return m_topNote;
 	}
 
 	inline bool isPartOfArpeggio() const
@@ -200,14 +206,14 @@ public:
 
 
 private:
-	class baseDetuning
+	class BaseDetuning
 	{
 	public:
-		baseDetuning( DetuningHelper * _detuning );
+		BaseDetuning( DetuningHelper *detuning );
 
-		void setValue( float _val )
+		void setValue( float val )
 		{
-			m_value = _val;
+			m_value = val;
 		}
 
 		float value() const
@@ -224,38 +230,40 @@ private:
 	
 
 	InstrumentTrack * m_instrumentTrack;	// needed for calling
-					// InstrumentTrack::playNote
-	f_cnt_t m_frames;		// total frames to play
-	f_cnt_t m_totalFramesPlayed;	// total frame-counter - used for
-					// figuring out whether a whole note
-					// has been played
-	f_cnt_t m_framesBeforeRelease;	// number of frames after which note
-					// is released
-	f_cnt_t m_releaseFramesToDo;	// total numbers of frames to be
-					// played after release
-	f_cnt_t m_releaseFramesDone;	// number of frames done after
-					// release of note
-	NotePlayHandleList m_subNotes;	// used for chords and arpeggios
-	volatile bool m_released;	// indicates whether note is released
-	bool m_baseNote;		// indicates whether note is a
-					// base-note (i.e. no sub-note)
-	bool m_partOfArpeggio;		// indicates whether note is part of
-					// an arpeggio (either base-note or
-					// sub-note)
-	bool m_muted;			// indicates whether note is muted
-	track * m_bbTrack;		// related BB track
+											// InstrumentTrack::playNote
+	f_cnt_t m_frames;						// total frames to play
+	f_cnt_t m_totalFramesPlayed;			// total frame-counter - used for
+											// figuring out whether a whole note
+											// has been played
+	f_cnt_t m_framesBeforeRelease;			// number of frames after which note
+											// is released
+	f_cnt_t m_releaseFramesToDo;			// total numbers of frames to be
+											// played after release
+	f_cnt_t m_releaseFramesDone;			// number of frames done after
+											// release of note
+	NotePlayHandleList m_subNotes;			// used for chords and arpeggios
+	volatile bool m_released;				// indicates whether note is released
+	bool m_topNote;							// indicates whether note is a
+											// base-note (i.e. no sub-note)
+	bool m_partOfArpeggio;					// indicates whether note is part of
+											// an arpeggio (either base-note or
+											// sub-note)
+	bool m_muted;							// indicates whether note is muted
+	track * m_bbTrack;						// related BB track
 #ifdef LMMS_SINGERBOT_SUPPORT
-	int m_patternIndex;		// position among relevant notes
+	int m_patternIndex;						// position among relevant notes
 #endif
 
 	// tempo reaction
-	bpm_t m_origTempo;		// original tempo
-	f_cnt_t m_origFrames;		// original m_frames
+	bpm_t m_origTempo;						// original tempo
+	f_cnt_t m_origFrames;					// original m_frames
+
+	int m_origBaseNote;
 
 	float m_frequency;
 	float m_unpitchedFrequency;
 
-	baseDetuning * m_baseDetuning;
+	BaseDetuning * m_baseDetuning;
 
 } ;
 

plugins/sf2_player/sf2_player.cpp

@@ -613,7 +613,7 @@ void sf2Instrument::playNote( notePlayHandle * _n, sampleFrame * )
 		}
 
 		fluid_synth_noteon( m_synth, m_channel, midiNote,
-							_n->getMidiVelocity() );
+							_n->midiVelocity() );
 
 		// get new voice and save it
 		fluid_synth_get_voicelist( m_synth, voices, poly, -1 );

src/core/InstrumentFunctions.cpp

@@ -1,7 +1,7 @@
 /*
  * InstrumentFunctions.cpp - models for instrument-function-tab
  *
- * Copyright (c) 2004-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ * Copyright (c) 2004-2010 Tobias Doerffel <tobydox/at/users.sourceforge.net>
  *
  * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
  *
@@ -166,7 +166,7 @@ void ChordCreator::processNote( notePlayHandle * _n )
 	// at the same time we only add sub-notes if nothing of the note was
 	// played yet, because otherwise we would add chord-subnotes every
 	// time an audio-buffer is rendered...
-	if( ( ( _n->isBaseNote() &&
+	if( ( ( _n->isTopNote() &&
 		_n->instrumentTrack()->isArpeggiatorEnabled() == false ) ||
 						_n->isPartOfArpeggio() ) &&
 				_n->totalFramesPlayed() == 0 &&
@@ -287,7 +287,7 @@ Arpeggiator::~Arpeggiator()
 void Arpeggiator::processNote( notePlayHandle * _n )
 {
 	const int base_note_key = _n->key();
-	if( _n->isBaseNote() == false ||
+	if( _n->isTopNote() == false ||
 			!m_arpEnabledModel.value() ||
 			( _n->released() && _n->releaseFramesDone() >=
 					_n->actualReleaseFramesToDo() ) )

src/core/note_play_handle.cpp

@@ -33,9 +33,8 @@
 #include "song.h"
 
 
-inline notePlayHandle::baseDetuning::baseDetuning(
-						DetuningHelper * _detuning ) :
-	m_detuning( _detuning ),
+notePlayHandle::BaseDetuning::BaseDetuning( DetuningHelper *detuning ) :
+	m_detuning( detuning ),
 	m_value( m_detuning->automationPattern()->valueAt( 0 ) )
 {
 }
@@ -49,7 +48,7 @@ notePlayHandle::notePlayHandle( InstrumentTrack * _it,
 						const f_cnt_t _offset,
 						const f_cnt_t _frames,
 						const note & _n,
-						notePlayHandle * _parent,
+						notePlayHandle *parent,
 						const bool _part_of_arp ) :
 	playHandle( NotePlayHandle, _offset ),
 	note( _n.length(), _n.pos(), _n.key(),
@@ -63,34 +62,34 @@ notePlayHandle::notePlayHandle( InstrumentTrack * _it,
 	m_releaseFramesToDo( 0 ),
 	m_releaseFramesDone( 0 ),
 	m_released( false ),
-	m_baseNote( _parent == NULL  ),
+	m_topNote( parent == NULL  ),
 	m_partOfArpeggio( _part_of_arp ),
 	m_muted( false ),
 	m_bbTrack( NULL ),
 #ifdef LMMS_SINGERBOT_SUPPORT
 	m_patternIndex( 0 ),
 #endif
-	m_origTempo( engine::getSong()->getTempo() )
+	m_origTempo( engine::getSong()->getTempo() ),
+	m_origBaseNote( instrumentTrack()->baseNoteModel()->value() )
 {
-	if( m_baseNote )
+	if( isTopNote() )
 	{
-		m_baseDetuning = new baseDetuning( detuning() );
+		m_baseDetuning = new BaseDetuning( detuning() );
 		m_instrumentTrack->m_processHandles.push_back( this );
 	}
 	else
 	{
-		m_baseDetuning = _parent->m_baseDetuning;
+		m_baseDetuning = parent->m_baseDetuning;
 
-		_parent->m_subNotes.push_back( this );
+		parent->m_subNotes.push_back( this );
 		// if there was an arp-note added and parent is a base-note
 		// we set arp-note-flag for indicating that parent is an
 		// arpeggio-base-note
-		_parent->m_partOfArpeggio = isPartOfArpeggio() &&
-							_parent->isBaseNote();
+		parent->m_partOfArpeggio = isPartOfArpeggio() && parent->isTopNote();
 
-		m_bbTrack = _parent->m_bbTrack;
+		m_bbTrack = parent->m_bbTrack;
 #ifdef LMMS_SINGERBOT_SUPPORT
-		m_patternIndex = _parent->m_patternIndex;
+		m_patternIndex = parent->m_patternIndex;
 #endif
 	}
 
@@ -99,12 +98,12 @@ notePlayHandle::notePlayHandle( InstrumentTrack * _it,
 	setFrames( _frames );
 
 
-	if( !isBaseNote() || !instrumentTrack()->isArpeggiatorEnabled() )
+	if( !isTopNote() || !instrumentTrack()->isArpeggiatorEnabled() )
 	{
 		// send MIDI-note-on-event
 		m_instrumentTrack->processOutEvent( midiEvent( MidiNoteOn,
 			m_instrumentTrack->midiPort()->realOutputChannel(),
-			key(), getMidiVelocity() ),
+			midiKey(), midiVelocity() ),
 				midiTime::fromFrames( offset(),
 						engine::framesPerTick() ) );
 	}
@@ -117,7 +116,7 @@ notePlayHandle::~notePlayHandle()
 {
 	noteOff( 0 );
 
-	if( m_baseNote )
+	if( isTopNote() )
 	{
 		delete m_baseDetuning;
 		m_instrumentTrack->m_processHandles.removeAll( this );
@@ -151,14 +150,14 @@ void notePlayHandle::setVolume( const volume_t _volume )
 	note::setVolume( _volume );
 	m_instrumentTrack->processOutEvent( midiEvent( MidiKeyPressure,
 			m_instrumentTrack->midiPort()->realOutputChannel(),
-						key(), getMidiVelocity() ), 0 );
+						midiKey(), midiVelocity() ), 0 );
 	
 }
 
 
 
 
-int notePlayHandle::getMidiVelocity() const
+int notePlayHandle::midiVelocity() const
 {
 	int vel = getVolume();
 	if( m_instrumentTrack->getVolume() < DefaultVolume )
@@ -171,6 +170,14 @@ int notePlayHandle::getMidiVelocity() const
 
 
 
+int notePlayHandle::midiKey() const
+{
+	return key() - m_origBaseNote + instrumentTrack()->baseNoteModel()->value();
+}
+
+
+
+
 void notePlayHandle::play( sampleFrame * _working_buffer )
 {
 	if( m_muted )
@@ -324,12 +331,12 @@ void notePlayHandle::noteOff( const f_cnt_t _s )
 	m_releaseFramesToDo = qMax<f_cnt_t>( 0, // 10,
 			m_instrumentTrack->m_soundShaping.releaseFrames() );
 
-	if( !isBaseNote() || !instrumentTrack()->isArpeggiatorEnabled() )
+	if( !isTopNote() || !instrumentTrack()->isArpeggiatorEnabled() )
 	{
 		// send MIDI-note-off-event
 		m_instrumentTrack->processOutEvent( midiEvent( MidiNoteOff,
 			m_instrumentTrack->midiPort()->realOutputChannel(),
-								key(), 0 ),
+								midiKey(), 0 ),
 			midiTime::fromFrames( m_framesBeforeRelease,
 						engine::framesPerTick() ) );
 	}
@@ -372,8 +379,8 @@ float notePlayHandle::volumeLevel( const f_cnt_t _frame )
 
 bool notePlayHandle::isArpeggioBaseNote() const
 {
-	return isBaseNote() && ( m_partOfArpeggio ||
-			m_instrumentTrack->isArpeggiatorEnabled() );
+	return isTopNote() && ( m_partOfArpeggio ||
+								m_instrumentTrack->isArpeggiatorEnabled() );
 }
 
 
@@ -456,8 +463,9 @@ bool notePlayHandle::operator==( const notePlayHandle & _nph ) const
 			offset() == _nph.offset() &&
 			m_totalFramesPlayed == _nph.m_totalFramesPlayed &&
 			m_released == _nph.m_released &&
-			m_baseNote == _nph.m_baseNote &&
+			m_topNote == _nph.m_topNote &&
 			m_partOfArpeggio == _nph.m_partOfArpeggio &&
+			m_origBaseNote == _nph.m_origBaseNote &&
 			m_muted == _nph.m_muted;
 }
 

src/gui/piano_roll.cpp

@@ -903,8 +903,8 @@ void pianoRoll::keyPressEvent( QKeyEvent * _ke )
 
 		if( _ke->isAutoRepeat() == false && key_num > -1 )
 		{
-			m_pattern->instrumentTrack()->
-				pianoModel()->handleKeyPress( key_num );
+			m_pattern->instrumentTrack()->pianoModel()->
+													handleKeyPress( key_num );
 			_ke->accept();
 		}
 	}
@@ -1188,8 +1188,8 @@ void pianoRoll::keyReleaseEvent( QKeyEvent * _ke )
 
 		if( _ke->isAutoRepeat() == false && key_num > -1 )
 		{
-			m_pattern->instrumentTrack()->
-				pianoModel()->handleKeyRelease( key_num );
+			m_pattern->instrumentTrack()->pianoModel()->
+													handleKeyRelease( key_num );
 			_ke->accept();
 		}
 	}