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//=========================================================
// MusE
// Linux Music Editor
// $Id: mididev.h,v 1.3.2.4 2009/04/04 01:49:50 terminator356 Exp $
//
// (C) Copyright 2000 Werner Schweer (ws@seh.de)
// (C) Copyright 2011 Tim E. Real (terminator356 on users dot sourceforge dot net)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; version 2 of
// the License, or (at your option) any later version.
//
// 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=========================================================
#ifndef __MIDIDEV_H__
#define __MIDIDEV_H__
#include <list>
#include "mpevent.h"
#include "route.h"
#include "globaldefs.h"
#include <QString>
namespace MusECore {
class Xml;
//---------------------------------------------------------
// MidiDevice
//---------------------------------------------------------
class MidiDevice {
// Used for multiple reads of fifos during process.
int _tmpRecordCount[MIDI_CHANNELS + 1];
bool _sysexFIFOProcessed;
protected:
QString _name;
int _port; // connected to midi port; -1 - not connected
int _rwFlags; // possible open flags, 1 write, 2 read, 3 rw
int _openFlags; // configured open flags
bool _readEnable; // set when opened/closed.
bool _writeEnable; //
bool _sysexReadingChunks;
MPEventList _stuckNotes;
MPEventList _playEvents;
// Fifo for midi events sent from gui direct to midi port:
MidiFifo eventFifo;
// Recording fifos. To speed up processing, one per channel plus one special system 'channel' for channel-less events like sysex.
MidiRecFifo _recordFifo[MIDI_CHANNELS + 1];
volatile bool stopPending;
volatile bool seekPending;
RouteList _inRoutes, _outRoutes;
void init();
virtual bool putMidiEvent(const MidiPlayEvent&) = 0;
virtual void processStuckNotes();
public:
enum { ALSA_MIDI=0, JACK_MIDI=1, SYNTH_MIDI=2 };
MidiDevice();
MidiDevice(const QString& name);
virtual ~MidiDevice() {}
virtual int deviceType() const = 0;
virtual void* inClientPort() { return 0; }
virtual void* outClientPort() { return 0; }
virtual QString open() = 0;
virtual void close() = 0;
virtual void writeRouting(int, Xml&) const { };
RouteList* inRoutes() { return &_inRoutes; }
RouteList* outRoutes() { return &_outRoutes; }
bool noInRoute() const { return _inRoutes.empty(); }
bool noOutRoute() const { return _outRoutes.empty(); }
const QString& name() const { return _name; }
virtual void setName(const QString& s) { _name = s; }
int midiPort() const { return _port; }
void setPort(int p);
int rwFlags() const { return _rwFlags; }
int openFlags() const { return _openFlags; }
void setOpenFlags(int val) { _openFlags = val; }
void setrwFlags(int val) { _rwFlags = val; }
virtual bool isSynti() const { return false; }
virtual int selectRfd() { return -1; }
virtual int selectWfd() { return -1; }
virtual int bytesToWrite() { return 0; }
virtual void flush() {}
virtual void processInput() {}
virtual void discardInput() {}
virtual void recordEvent(MidiRecordEvent&);
// Schedule an event for playback. Returns false if event cannot be delivered.
virtual bool addScheduledEvent(const MidiPlayEvent& ev) { _playEvents.add(ev); return true; }
// Add a stuck note. Returns false if event cannot be delivered.
virtual bool addStuckNote(const MidiPlayEvent& ev) { _stuckNotes.add(ev); return true; }
// Put an event for immediate playback.
virtual bool putEvent(const MidiPlayEvent&);
// This method will try to putEvent 'tries' times, waiting 'delayUs' microseconds between tries.
// Since it waits, it should not be used in RT or other time-sensitive threads. p4.0.15
bool putEventWithRetry(const MidiPlayEvent&, int tries = 2, long delayUs = 50000); // 2 tries, 50 mS by default.
virtual void handleStop();
virtual void handleSeek();
virtual void collectMidiEvents() {}
virtual void processMidi() {}
void beforeProcess();
void afterProcess();
int tmpRecordCount(const unsigned int ch) { return _tmpRecordCount[ch]; }
MidiRecFifo& recordEvents(const unsigned int ch) { return _recordFifo[ch]; }
bool sysexFIFOProcessed() { return _sysexFIFOProcessed; }
void setSysexFIFOProcessed(bool v) { _sysexFIFOProcessed = v; }
bool sysexReadingChunks() { return _sysexReadingChunks; }
void setSysexReadingChunks(bool v) { _sysexReadingChunks = v; }
bool sendNullRPNParams(unsigned time, int port, int chan, bool);
};
//---------------------------------------------------------
// MidiDeviceList
//---------------------------------------------------------
typedef std::list<MidiDevice*>::iterator iMidiDevice;
class MidiDeviceList : public std::list<MidiDevice*>
{
public:
void add(MidiDevice* dev);
void remove(MidiDevice* dev);
MidiDevice* find(const QString& name, int typeHint = -1);
iMidiDevice find(const MidiDevice* dev);
};
extern void initMidiDevices();
extern bool filterEvent(const MEvent& event, int type, bool thru);
} // namespace MusECore
namespace MusEGlobal {
extern MusECore::MidiDeviceList midiDevices;
}
#endif
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