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857de8d2c8
Well, this commit got a bit out of hand, what with 26 files changed. Oh well. Basically, we're using the buffermanager to dispense temporary buffers for playhandles and audioports to use. This allows us to change the way playhandles work. Earlier, playhandles of the same track were waiting in line to push their output to the audioport. This was of course inefficient, so now they just register themselves to the port, then the port handles mixing the buffers. Caveat: this is still a work in progress, the vol/pan knobs on instruments are temporarily non-functional - will be fixed in the next commit, but I have to get some sleep now.
90 lines
1.7 KiB
C++
90 lines
1.7 KiB
C++
/*
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* ThreadableJob.h - declaration of class ThreadableJob
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*
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* Copyright (c) 2009-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of LMMS - http://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 THREADABLE_JOB_H
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#define THREADABLE_JOB_H
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#include <QtCore/QAtomicInt>
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#include "lmms_basics.h"
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class ThreadableJob
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{
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public:
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enum ProcessingState
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{
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Unstarted,
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Queued,
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InProgress,
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Done
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};
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ThreadableJob() :
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m_state( ThreadableJob::Unstarted )
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{
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}
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inline ProcessingState state() const
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{
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return static_cast<ProcessingState>( (int) m_state );
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}
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inline void reset()
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{
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m_state = Unstarted;
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}
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inline void queue()
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{
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m_state = Queued;
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}
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inline void done()
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{
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m_state = Done;
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}
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void process()
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{
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if( m_state.testAndSetOrdered( Queued, InProgress ) )
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{
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doProcessing();
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m_state = Done;
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}
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}
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virtual bool requiresProcessing() const = 0;
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protected:
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virtual void doProcessing() = 0;
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QAtomicInt m_state;
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} ;
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#endif
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