Tobias Doerffel
3a827f061f
The MIDI event handling in InstrumentTrack was complex and buggy. It has been simplified now such that processInEvent() tries to handle note on, note off and key pressure events. The actions taken should result in equivalent calls to processOutEvent() by NotePlayHandle instances. The processOutEvent() function sends according MIDI events to the attached instruments. All unhandled MIDI events are directly forwarded to the instrument in processInEvent(). It's possible that some corner-cases are not handled yet with the new code and we have regressions now. Furthermore renamed midiTime/midiEvent to MidiTime/MidiEvent to match coding style. Closes #72.
164 lines
3.4 KiB
C++
164 lines
3.4 KiB
C++
/*
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* MidiAlsaSeq.h - ALSA-sequencer-client
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*
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* Copyright (c) 2005-2013 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef _MIDI_ALSA_SEQ_H
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#define _MIDI_ALSA_SEQ_H
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#include "lmmsconfig.h"
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#ifdef LMMS_HAVE_ALSA
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#include <alsa/asoundlib.h>
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#endif
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#include <QtCore/QMutex>
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#include <QtCore/QThread>
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#include <QtCore/QTimer>
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#include "MidiClient.h"
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struct pollfd;
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class QLineEdit;
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class MidiAlsaSeq : public QThread, public MidiClient
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{
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Q_OBJECT
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public:
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MidiAlsaSeq();
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virtual ~MidiAlsaSeq();
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static QString probeDevice();
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inline static QString name()
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{
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return QT_TRANSLATE_NOOP( "setupWidget",
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"ALSA-Sequencer (Advanced Linux Sound "
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"Architecture)" );
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}
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virtual void processOutEvent( const MidiEvent & _me,
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const MidiTime & _time,
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const MidiPort * _port );
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virtual void applyPortMode( MidiPort * _port );
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virtual void applyPortName( MidiPort * _port );
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virtual void removePort( MidiPort * _port );
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// list seq-ports from ALSA
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virtual QStringList readablePorts() const
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{
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return m_readablePorts;
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}
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virtual QStringList writablePorts() const
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{
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return m_writablePorts;
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}
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// return name of port which specified MIDI event came from
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virtual QString sourcePortName( const MidiEvent & ) const;
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// (un)subscribe given MidiPort to/from destination-port
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virtual void subscribeReadablePort( MidiPort * _port,
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const QString & _dest,
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bool _subscribe = true );
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virtual void subscribeWritablePort( MidiPort * _port,
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const QString & _dest,
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bool _subscribe = true );
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virtual void connectRPChanged( QObject * _receiver,
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const char * _member )
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{
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connect( this, SIGNAL( readablePortsChanged() ),
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_receiver, _member );
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}
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virtual void connectWPChanged( QObject * _receiver,
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const char * _member )
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{
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connect( this, SIGNAL( writablePortsChanged() ),
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_receiver, _member );
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}
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class setupWidget : public MidiClient::setupWidget
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{
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public:
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setupWidget( QWidget * _parent );
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virtual ~setupWidget();
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virtual void saveSettings();
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private:
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QLineEdit * m_device;
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} ;
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private slots:
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void changeQueueTempo( bpm_t _bpm );
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void updatePortList();
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private:
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virtual void run();
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#ifdef LMMS_HAVE_ALSA
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QMutex m_seqMutex;
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snd_seq_t * m_seqHandle;
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struct Ports
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{
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Ports() { p[0] = -1; p[1] = -1; }
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int & operator[]( const int _i ) { return p[_i]; }
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private: int p[2];
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} ;
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QMap<MidiPort *, Ports> m_portIDs;
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#endif
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int m_queueID;
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volatile bool m_quit;
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QTimer m_portListUpdateTimer;
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QStringList m_readablePorts;
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QStringList m_writablePorts;
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int m_pipe[2];
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signals:
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void readablePortsChanged();
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void writablePortsChanged();
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} ;
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#endif
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