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https://github.com/LMMS/lmms.git
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100 lines
2.0 KiB
C++
100 lines
2.0 KiB
C++
/*
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* VstSyncController.h - type declarations needed for VST to lmms host sync
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*
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* Copyright (c) 2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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* Copyright (c) 2013 Mike Choi <rdavidian71/at/gmail/dot/com>
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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 VST_SYNC_CONTROLLER_H
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#define VST_SYNC_CONTROLLER_H
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#include <QtCore/QObject>
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#include <QtCore/QSharedMemory>
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#include "VstSyncData.h"
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class VstSyncController : public QObject
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{
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Q_OBJECT
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public:
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VstSyncController();
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~VstSyncController();
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void setAbsolutePosition( int ticks );
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void setPlaybackState( bool enabled )
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{
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m_syncData->isPlaying = enabled;
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}
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void setTempo( int newTempo );
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void setTimeSignature( int num, int denom )
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{
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m_syncData->timeSigNumer = num;
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m_syncData->timeSigDenom = denom;
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}
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void startCycle( int startTick, int endTick );
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void stopCycle()
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{
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m_syncData->isCycle = false;
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}
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void update();
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private slots:
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void updateSampleRate();
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private:
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struct VstSyncData
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{
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bool isPlaying;
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float ppqPos;
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int timeSigNumer;
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int timeSigDenom;
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bool isCycle;
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bool hasSHM;
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float cycleStart;
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float cycleEnd;
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int m_bufferSize;
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int m_sampleRate;
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int m_bpm;
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#ifdef VST_SNC_LATENCY
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float m_latency;
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#endif
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} ;
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VstSyncData* m_syncData;
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int m_shmID;
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QSharedMemory m_shm;
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};
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#endif
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