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//=============================================================================
// MusE
// Linux Music Editor
// $Id:$
//
// Copyright (C) 2002-2006 by Werner Schweer and others
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//=============================================================================
#ifndef __AUDIODEV_H__
#define __AUDIODEV_H__
#include "driver.h"
class MidiInPort;
//---------------------------------------------------------
// AudioDevice
//---------------------------------------------------------
class AudioDriver : public Driver {
public:
AudioDriver() {}
virtual ~AudioDriver() {}
virtual void start(int priority) = 0;
virtual bool restart() { return false; } // return true on error
virtual void stop () = 0;
virtual unsigned frameTime() const = 0;
virtual float* getBuffer(Port, unsigned long nframes) = 0;
virtual void registerClient() = 0;
virtual Port registerOutPort(const QString& name, bool midi) = 0;
virtual Port registerInPort(const QString& name, bool midi) = 0;
virtual int realtimePriority() const = 0; // return zero if not realtime
virtual void startTransport() = 0;
virtual void stopTransport() = 0;
virtual void seekTransport(unsigned frame) = 0;
virtual void setFreewheel(bool f) = 0;
virtual void graphChanged() {}
virtual void startMidiCycle(Port) {}
virtual void collectMidiEvents(MidiInPort*, Port) {}
};
#endif
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