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a955fb755a
There once have been huge efforts to implement FX send support in the master branch. In order to make it available on a stable base here's a backport which is non-trivial as there have been major rewrites of the mixer's worker thread architecture. There still seem to be bugs which we have to fix before merging into stable branch. Thanks to Andrew Kelley for the original work.
85 lines
1.7 KiB
C++
85 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 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 _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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void process( sampleFrame* workingBuffer = NULL )
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{
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if( m_state.testAndSetOrdered( Queued, InProgress ) )
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{
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doProcessing( workingBuffer );
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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( sampleFrame* workingBuffer) = 0;
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QAtomicInt m_state;
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} ;
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#endif
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