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//=============================================================================
// MuseScore
// Linux Music Score Editor
// $Id: mididriver.h 2154 2009-10-03 14:31:53Z wschweer $
//
// Copyright (C) 2008-2009 Werner Schweer and others
//
// AlsaDriver based on code from Fons Adriaensen (clalsadr.cc)
// Copyright (C) 2003 Fons Adriaensen
// partly based on original work from Paul Davis
//
// 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 __MIDIDRIVER_H__
#define __MIDIDRIVER_H__
#if not defined(Q_OS_WIN)
#include <poll.h>
#endif
#include "config.h"
#include "driver.h"
namespace Ms {
class Event;
class Seq;
//---------------------------------------------------------
// Port
//---------------------------------------------------------
class Port {
enum { ALSA_TYPE, ZERO_TYPE } type;
unsigned char _alsaPort;
unsigned char _alsaClient;
protected:
unsigned char alsaPort() const { return _alsaPort; }
unsigned char alsaClient() const { return _alsaClient; }
public:
Port();
Port(unsigned char client, unsigned char port);
void setZero();
bool isZero() const;
bool operator==(const Port& p) const;
bool operator<(const Port& p) const;
friend class MidiDriver;
friend class AlsaMidiDriver;
};
//---------------------------------------------------------
// MidiDriver
//---------------------------------------------------------
class MidiDriver {
protected:
Port midiInPort;
QList<Port> midiOutPorts;
Seq* seq;
public:
MidiDriver(Seq* s) { seq = s; }
virtual ~MidiDriver() {}
virtual bool init() = 0;
virtual void getInputPollFd(struct pollfd**, int* n) = 0;
virtual void getOutputPollFd(struct pollfd**, int* n) = 0;
virtual void read() = 0;
virtual void write(const Event&) = 0;
};
#ifdef USE_ALSA
//---------------------------------------------------------
// AlsaPort
//---------------------------------------------------------
struct AlsaPort {
unsigned char _alsaPort;
unsigned char _alsaClient;
};
#endif
} // namespace Ms
#endif
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