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In Mixer, the old C-macro based code has been replaced by an OOP-like design. Management of job queue now happens via some static member methods of MixerWorkerThread. All the moved code still needs to be splitted into some new files but here's a first dirty version. All objects that are intended to be processed by MixerWorkerThreads have to inherit ThreadableJob (name of class is subject of change). One can add jobs to the job queue even if the queue is already being processed. This is merely important for multithreading with upcoming FX sends support.
151 lines
2.8 KiB
C++
151 lines
2.8 KiB
C++
/*
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* AudioPort.h - base-class for objects providing sound at a port
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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 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 _AUDIO_PORT_H
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#define _AUDIO_PORT_H
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#include <QtCore/QString>
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#include <QtCore/QMutex>
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#include <QtCore/QMutexLocker>
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#include "mixer.h"
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class EffectChain;
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class AudioPort : public ThreadableJob
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{
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public:
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AudioPort( const QString & _name, bool _has_effect_chain = true );
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~AudioPort();
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inline sampleFrameA * firstBuffer()
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{
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return m_firstBuffer;
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}
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inline sampleFrameA * secondBuffer()
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{
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return m_secondBuffer;
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}
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inline void lockFirstBuffer()
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{
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m_firstBufferLock.lock();
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}
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inline void lockSecondBuffer()
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{
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m_secondBufferLock.lock();
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}
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inline void unlockFirstBuffer()
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{
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m_firstBufferLock.unlock();
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}
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inline void unlockSecondBuffer()
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{
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m_secondBufferLock.unlock();
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}
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void nextPeriod();
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// indicate whether JACK & Co should provide output-buffer at ext. port
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inline bool extOutputEnabled() const
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{
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return m_extOutputEnabled;
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}
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void setExtOutputEnabled( bool _enabled );
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// next effect-channel after this audio-port
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// (-1 = none 0 = master)
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inline fx_ch_t nextFxChannel() const
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{
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return m_nextFxChannel;
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}
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inline EffectChain * effects()
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{
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return m_effects;
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}
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void setNextFxChannel( const fx_ch_t _chnl )
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{
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m_nextFxChannel = _chnl;
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}
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const QString & name() const
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{
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return m_name;
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}
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void setName( const QString & _new_name );
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bool processEffects();
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// ThreadableJob stuff
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virtual void doProcessing( sampleFrame * );
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virtual bool requiresProcessing() const
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{
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return true;
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}
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enum bufferUsages
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{
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NoUsage,
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FirstBuffer,
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BothBuffers
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} ;
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private:
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volatile bufferUsages m_bufferUsage;
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sampleFrameA * m_firstBuffer;
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sampleFrameA * m_secondBuffer;
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QMutex m_firstBufferLock;
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QMutex m_secondBufferLock;
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bool m_extOutputEnabled;
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fx_ch_t m_nextFxChannel;
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QString m_name;
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EffectChain * m_effects;
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friend class mixer;
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friend class MixerWorkerThread;
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} ;
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#endif
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