mirror of
https://github.com/LMMS/lmms.git
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148 lines
3.2 KiB
C++
148 lines
3.2 KiB
C++
/*
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* AudioJack.h - support for JACK-transport
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*
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* Copyright (c) 2005-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of LMMS - https://lmms.io
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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 AUDIO_JACK_H
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#define AUDIO_JACK_H
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#include "lmmsconfig.h"
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#ifdef LMMS_HAVE_JACK
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#ifndef LMMS_HAVE_WEAKJACK
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#include <jack/jack.h>
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#else
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#include "weak_libjack.h"
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#endif
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#include <atomic>
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#include <QVector>
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#include "AudioDevice.h"
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#include "AudioDeviceSetupWidget.h"
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class QLineEdit;
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namespace lmms
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{
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class MidiJack;
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namespace gui
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{
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class LcdSpinBox;
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}
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class AudioJack : public QObject, public AudioDevice
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{
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Q_OBJECT
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public:
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AudioJack( bool & _success_ful, AudioEngine* audioEngine );
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~AudioJack() override;
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// this is to allow the jack midi connection to use the same jack client connection
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// the jack callback is handled here, we call the midi client so that it can read
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// it's midi data during the callback
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AudioJack * addMidiClient(MidiJack *midiClient);
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void removeMidiClient() { m_midiClient = nullptr; }
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jack_client_t * jackClient() {return m_client;};
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inline static QString name()
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{
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return QT_TRANSLATE_NOOP( "AudioDeviceSetupWidget",
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"JACK (JACK Audio Connection Kit)" );
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}
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class setupWidget : public gui::AudioDeviceSetupWidget
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{
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public:
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setupWidget( QWidget * _parent );
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~setupWidget() override;
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void saveSettings() override;
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private:
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QLineEdit * m_clientName;
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gui::LcdSpinBox * m_channels;
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} ;
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private slots:
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void restartAfterZombified();
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private:
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bool initJackClient();
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void startProcessing() override;
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void stopProcessing() override;
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void applyQualitySettings() override;
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void registerPort( AudioPort * _port ) override;
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void unregisterPort( AudioPort * _port ) override;
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void renamePort( AudioPort * _port ) override;
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int processCallback( jack_nframes_t _nframes, void * _udata );
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static int staticProcessCallback( jack_nframes_t _nframes,
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void * _udata );
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static void shutdownCallback( void * _udata );
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jack_client_t * m_client;
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bool m_active;
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std::atomic<bool> m_stopped;
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std::atomic<MidiJack *> m_midiClient;
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QVector<jack_port_t *> m_outputPorts;
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jack_default_audio_sample_t * * m_tempOutBufs;
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surroundSampleFrame * m_outBuf;
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f_cnt_t m_framesDoneInCurBuf;
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f_cnt_t m_framesToDoInCurBuf;
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#ifdef AUDIO_PORT_SUPPORT
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struct StereoPort
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{
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jack_port_t * ports[2];
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} ;
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using JackPortMap = QMap<AudioPort *, StereoPort>;
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JackPortMap m_portMap;
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#endif
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signals:
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void zombified();
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} ;
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} // namespace lmms
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#endif // LMMS_HAVE_JACK
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#endif
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