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c0f48d6196
git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1998 0778d3d1-df1d-0410-868b-ea421aaaa00d
145 lines
2.7 KiB
C++
145 lines
2.7 KiB
C++
/*
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* audio_port.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
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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( void )
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{
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return m_firstBuffer;
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}
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inline sampleFrameA * secondBuffer( void )
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{
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return m_secondBuffer;
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}
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inline void lockFirstBuffer( void )
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{
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m_firstBufferLock.lock();
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}
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inline void lockSecondBuffer( void )
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{
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m_secondBufferLock.lock();
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}
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inline void unlockFirstBuffer( void )
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{
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m_firstBufferLock.unlock();
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}
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inline void unlockSecondBuffer( void )
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{
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m_secondBufferLock.unlock();
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}
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void nextPeriod( void );
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// indicate whether JACK & Co should provide output-buffer at ext. port
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inline bool extOutputEnabled( void ) 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( void ) const
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{
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return m_nextFxChannel;
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}
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inline effectChain * getEffects( void )
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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( void ) 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( void );
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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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