62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
//=============================================================================
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// MuseScore
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// Linux Music Score Editor
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//
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// Copyright (C) 2002-2009 Werner Schweer and others
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2.
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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
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// GNU 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 License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//=============================================================================
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#ifndef __DRIVER_H__
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#define __DRIVER_H__
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namespace Ms {
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class Seq;
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class Event;
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class NPlayEvent;
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enum class Transport : char;
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//---------------------------------------------------------
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// Driver
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//---------------------------------------------------------
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class Driver {
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protected:
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Seq* seq;
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public:
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Driver(Seq* s) { seq = s; }
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virtual ~Driver() {}
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virtual bool init(bool hot = false) = 0;
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virtual bool start(bool hotPlug = false) = 0;
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virtual bool stop() = 0;
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virtual void stopTransport() = 0;
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virtual void startTransport() = 0;
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virtual Transport getState() = 0;
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virtual void seekTransport(int) {}
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virtual int sampleRate() const = 0;
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virtual void putEvent(const NPlayEvent&, unsigned /*framePos*/) {}
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virtual void midiRead() {}
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virtual void handleTimeSigTempoChanged() {}
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virtual void checkTransportSeek(int, int, bool) {}
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virtual int bufferSize() {return 0;}
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virtual void updateOutPortCount(int) {}
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};
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extern bool alsaIsUsed, jackIsUsed, portAudioIsUsed, pulseAudioIsUsed;
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} // namespace Ms
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#endif
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