mirror of
https://github.com/LMMS/lmms.git
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139 lines
3.3 KiB
C++
139 lines
3.3 KiB
C++
/*
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* AudioSoundIo.h - device-class that performs PCM-output via libsoundio
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*
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* Copyright (c) 2015 Andrew Kelley <superjoe30@gmail.com>
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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_SOUNDIO_H
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#define AUDIO_SOUNDIO_H
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#include <QtCore/QObject>
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#include "lmmsconfig.h"
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#include "ComboBoxModel.h"
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#ifdef LMMS_HAVE_SOUNDIO
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#include <soundio/soundio.h>
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#include "AudioDevice.h"
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#include "AudioDeviceSetupWidget.h"
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class ComboBox;
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class LcdSpinBox;
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// Exists only to work around "Error: Meta object features not supported for nested classes"
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class AudioSoundIoSetupUtil : public QObject
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{
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Q_OBJECT
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public:
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virtual ~AudioSoundIoSetupUtil();
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void *m_setupWidget;
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public slots:
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void updateDevices();
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void reconnectSoundIo();
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};
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class AudioSoundIo : public AudioDevice
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{
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public:
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AudioSoundIo( bool & _success_ful, Mixer* mixer );
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virtual ~AudioSoundIo();
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inline static QString name()
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{
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return QT_TRANSLATE_NOOP( "setupWidget", "soundio" );
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}
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class setupWidget : public AudioDeviceSetupWidget
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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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void updateDevices();
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void reconnectSoundIo();
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private:
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AudioSoundIoSetupUtil m_setupUtil;
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ComboBox * m_backend;
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ComboBox * m_device;
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ComboBoxModel m_backendModel;
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ComboBoxModel m_deviceModel;
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SoundIo * m_soundio;
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struct DeviceId {
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QString id;
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bool is_raw;
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};
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QList<DeviceId> m_deviceList;
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int m_defaultOutIndex;
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bool m_isFirst;
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} ;
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private:
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virtual void startProcessing();
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virtual void stopProcessing();
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SoundIo *m_soundio;
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SoundIoOutStream *m_outstream;
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surroundSampleFrame * m_outBuf;
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int m_outBufSize;
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fpp_t m_outBufFramesTotal;
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fpp_t m_outBufFrameIndex;
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bool m_stopped;
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int m_disconnectErr;
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void onBackendDisconnect(int err);
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void writeCallback(int frame_count_min, int frame_count_max);
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void errorCallback(int err);
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void underflowCallback();
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static void staticWriteCallback(SoundIoOutStream *outstream, int frame_count_min, int frame_count_max) {
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return ((AudioSoundIo *)outstream->userdata)->writeCallback(frame_count_min, frame_count_max);
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}
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static void staticErrorCallback(SoundIoOutStream *outstream, int err) {
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return ((AudioSoundIo *)outstream->userdata)->errorCallback(err);
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}
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static void staticUnderflowCallback(SoundIoOutStream *outstream) {
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return ((AudioSoundIo *)outstream->userdata)->underflowCallback();
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}
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static void staticOnBackendDisconnect(SoundIo *soundio, int err) {
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return ((AudioSoundIo *)soundio->userdata)->onBackendDisconnect(err);
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}
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};
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#endif
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#endif
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