94 lines
3.5 KiB
C++
94 lines
3.5 KiB
C++
//=============================================================================
|
|
// MuseScore
|
|
// Linux Music Score Editor
|
|
//
|
|
// Copyright (C) 2002-2009 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 __JACKAUDIO_H__
|
|
#define __JACKAUDIO_H__
|
|
|
|
#include "config.h"
|
|
#include "driver.h"
|
|
#include <jack/jack.h>
|
|
|
|
namespace Ms {
|
|
|
|
class Synth;
|
|
class Seq;
|
|
class MidiDriver;
|
|
|
|
//---------------------------------------------------------
|
|
// JackAudio
|
|
//---------------------------------------------------------
|
|
|
|
class JackAudio : public Driver {
|
|
unsigned _segmentSize;
|
|
// We use fakeState if preferences.useJackTransport = false to emulate JACK Transport.
|
|
// ALSA, PortAudio do the same thing because of they don't have any transport.
|
|
// Also this implements fake transport when we have to temporarily disconnect from JACK Transport.
|
|
// It may be useful when playing count in to let JACK Transport wait before playing score.
|
|
Transport fakeState;
|
|
|
|
jack_client_t* client;
|
|
char _jackName[8];
|
|
|
|
bool timeSigTempoChanged;
|
|
QList<jack_port_t*> ports;
|
|
QList<jack_port_t*> midiOutputPorts;
|
|
QList<jack_port_t*> midiInputPorts;
|
|
|
|
static int processAudio(jack_nframes_t, void*);
|
|
static void timebase (jack_transport_state_t, jack_nframes_t, jack_position_t*, int, void *);
|
|
void hotPlug();
|
|
void setTimebaseCallback();
|
|
void releaseTimebaseCallback();
|
|
void rememberAudioConnections();
|
|
void restoreAudioConnections();
|
|
void rememberMidiConnections();
|
|
void restoreMidiConnections();
|
|
QList<QString> inputPorts();
|
|
public:
|
|
JackAudio(Seq*);
|
|
virtual ~JackAudio();
|
|
virtual bool init(bool hot = false);
|
|
virtual bool start(bool hotPlug = false);
|
|
virtual bool stop();
|
|
int framePos() const;
|
|
void connect(void*, void*);
|
|
void connect(const char* src, const char* dst);
|
|
void disconnect(void* src, void* dst);
|
|
virtual bool isRealtime() const { return jack_is_realtime(client); }
|
|
virtual void startTransport();
|
|
virtual void stopTransport();
|
|
virtual Transport getState() override;
|
|
virtual void seekTransport(int);
|
|
virtual int sampleRate() const { return jack_get_sample_rate(client); }
|
|
virtual void putEvent(const NPlayEvent&, unsigned framePos);
|
|
virtual void midiRead();
|
|
|
|
virtual void registerPort(const QString& name, bool input, bool midi);
|
|
virtual void unregisterPort(jack_port_t*);
|
|
virtual void handleTimeSigTempoChanged();
|
|
virtual void checkTransportSeek(int, int, bool);
|
|
virtual int bufferSize() {return _segmentSize;}
|
|
void setBufferSize(int nframes) { _segmentSize = nframes;}
|
|
void updateOutPortCount(int);
|
|
};
|
|
|
|
|
|
} // namespace Ms
|
|
#endif
|
|
|