mirror of
https://github.com/LMMS/lmms.git
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144 lines
3.3 KiB
C++
144 lines
3.3 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 LMMS_AUDIO_JACK_H
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#define LMMS_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 <vector>
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#ifdef AUDIO_BUS_HANDLE_SUPPORT
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#include <QMap>
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#endif
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#include "AudioDevice.h"
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#include "AudioDeviceSetupWidget.h"
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#ifdef AUDIO_BUS_HANDLE_SUPPORT
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#include "AudioBusHandle.h"
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#endif
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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& successful, 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", "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 registerPort(AudioBusHandle* port) override;
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void unregisterPort(AudioBusHandle* port) override;
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void renamePort(AudioBusHandle* port) override;
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int processCallback(jack_nframes_t nframes);
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static int staticProcessCallback(jack_nframes_t nframes, 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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std::vector<jack_port_t*> m_outputPorts;
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jack_default_audio_sample_t** m_tempOutBufs;
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SampleFrame* 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_BUS_HANDLE_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<AudioBusHandle*, 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 // LMMS_AUDIO_JACK_H
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