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68b5a21d14
Avoid crashes caused by worker threads accessing the buffer manager before it is initialized. Therefore initialize it from within the Mixer constructor which has the side effect that it gets initialized in console-only rendering mode as well.
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
/*
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* BufferManager.h - A buffer caching/memory management system
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*
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* Copyright (c) 2014 Vesa Kivimäki <contact/dot/diizy/at/nbl/dot/fi>
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* Copyright (c) 2006-2014 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 BUFFER_MANAGER_H
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#define BUFFER_MANAGER_H
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#include "MemoryManager.h"
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#include "lmms_basics.h"
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#include "engine.h"
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#include "Mixer.h"
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#include <QtCore/QAtomicInt>
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#include <QtCore/QReadWriteLock>
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const int BM_INITIAL_BUFFERS = 512;
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//const int BM_INCREMENT = 64;
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class EXPORT BufferManager
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{
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public:
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static void init( fpp_t framesPerPeriod );
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static sampleFrame * acquire();
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static void release( sampleFrame * buf );
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static void refresh();
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// static void extend( int c );
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private:
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static sampleFrame ** s_available;
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static QAtomicInt s_availableIndex;
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static sampleFrame ** s_released;
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static QAtomicInt s_releasedIndex;
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// static QReadWriteLock s_mutex;
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static int s_size;
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};
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#endif
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