/*
- Copyright (C) 2008 Hans Baier
+ Copyright (C) 2008 Hans Baier
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
#include "ardour/session.h"
#include "ardour/tempo.h"
-#define DEBUG_TICKER 0
+#ifdef DEBUG_MIDI_CLOCK
+#include <iostream>
+using namespace std;
+#endif
namespace ARDOUR
{
-void Ticker::set_session(Session& s)
+void Ticker::set_session(Session& s)
{
_session = &s;
-
- if(_session) {
+
+ if (_session) {
_session->tick.connect(mem_fun (*this, &Ticker::tick));
_session->GoingAway.connect(mem_fun (*this, &Ticker::going_away));
}
}
-void MidiClockTicker::set_session(Session& s)
+void MidiClockTicker::set_session(Session& s)
{
Ticker::set_session(s);
-
- if(_session) {
- _session->MIDIClock_PortChanged.connect(mem_fun (*this, &MidiClockTicker::update_midi_clock_port));
- _session->TransportStateChange .connect(mem_fun (*this, &MidiClockTicker::transport_state_changed));
- _session->PositionChanged .connect(mem_fun (*this, &MidiClockTicker::position_changed));
- _session->TransportLooped .connect(mem_fun (*this, &MidiClockTicker::transport_looped));
+
+ if (_session) {
+ _session->MIDIClock_PortChanged.connect(
+ mem_fun (*this, &MidiClockTicker::update_midi_clock_port));
+ _session->TransportStateChange.connect(
+ mem_fun (*this, &MidiClockTicker::transport_state_changed));
+ _session->PositionChanged.connect(
+ mem_fun (*this, &MidiClockTicker::position_changed));
+ _session->TransportLooped.connect(
+ mem_fun (*this, &MidiClockTicker::transport_looped));
update_midi_clock_port();
}
}
void MidiClockTicker::update_midi_clock_port()
{
- _jack_port = (MIDI::JACK_MidiPort*) _session->midi_clock_port();
+ _midi_port = _session->midi_clock_port();
}
void MidiClockTicker::transport_state_changed()
{
- float speed = _session->transport_speed();
- nframes_t position = _session->transport_frame();
-#if DEBUG_TICKER
+ if (_session->exporting()) {
+ /* no midi clock during export, for now */
+ return;
+ }
+
+ float speed = _session->transport_speed();
+ nframes_t position = _session->transport_frame();
+#ifdef DEBUG_MIDI_CLOCK
cerr << "Transport state change, speed:" << speed << "position:" << position<< " play loop " << _session->get_play_loop() << endl;
-#endif
+#endif
if (speed == 1.0f) {
_last_tick = position;
-
- if (!Config->get_send_midi_clock())
+
+ if (!Config->get_send_midi_clock())
return;
-
+
if (_session->get_play_loop()) {
assert(_session->locations()->auto_loop_location());
if (position == _session->locations()->auto_loop_location()->start()) {
} else {
send_continue_event(0);
}
-
+
send_midi_clock_event(0);
-
+
} else if (speed == 0.0f) {
- if (!Config->get_send_midi_clock())
+ if (!Config->get_send_midi_clock())
return;
-
+
send_stop_event(0);
}
-
+
tick(position, *((ARDOUR::BBT_Time *) 0), *((SMPTE::Time *)0));
}
void MidiClockTicker::position_changed(nframes_t position)
{
-#if DEBUG_TICKER
+#ifdef DEBUG_MIDI_CLOCK
cerr << "Position changed:" << position << endl;
-#endif
+#endif
_last_tick = position;
}
void MidiClockTicker::transport_looped()
{
- nframes_t position = _session->transport_frame();
-
Location* loop_location = _session->locations()->auto_loop_location();
assert(loop_location);
-#if DEBUG_TICKER
- cerr << "Transport looped, position:" << position
+#ifdef DEBUG_MIDI_CLOCK
+ cerr << "Transport looped, position:" << _session->transport_frame()
<< " loop start " << loop_location->start( )
<< " loop end " << loop_location->end( )
<< " play loop " << _session->get_play_loop()
<< endl;
#endif
-
- // adjust _last_tick, so that the next MIDI clock message is sent
+
+ // adjust _last_tick, so that the next MIDI clock message is sent
// in due time (and the tick interval is still constant)
nframes_t elapsed_since_last_tick = loop_location->end() - _last_tick;
_last_tick = loop_location->start() - elapsed_since_last_tick;
}
-void MidiClockTicker::tick(const nframes_t& transport_frames, const BBT_Time& transport_bbt, const SMPTE::Time& transport_smpt)
-{
+void MidiClockTicker::tick(const nframes_t& transport_frames, const BBT_Time& /*transport_bbt*/, const SMPTE::Time& /*transport_smpt*/)
+{
+#ifdef WITH_JACK_MIDI
if (!Config->get_send_midi_clock() || _session == 0 || _session->transport_speed() != 1.0f)
return;
+ MIDI::JACK_MidiPort* jack_port = dynamic_cast<MIDI::JACK_MidiPort*>(_midi_port);
+ assert(jack_port);
+
while (true) {
double next_tick = _last_tick + one_ppqn_in_frames(transport_frames);
nframes_t next_tick_offset = nframes_t(next_tick) - transport_frames;
-
-#if DEBUG_TICKER
- cerr << "Transport:" << transport_frames
- << ":Last tick time:" << _last_tick << ":"
- << ":Next tick time:" << next_tick << ":"
+
+#ifdef DEBUG_MIDI_CLOCK
+ cerr << "Transport:" << transport_frames
+ << ":Last tick time:" << _last_tick << ":"
+ << ":Next tick time:" << next_tick << ":"
<< "Offset:" << next_tick_offset << ":"
- << "cycle length:" << _jack_port->nframes_this_cycle()
- << endl;
-#endif
-
- if (next_tick_offset >= _jack_port->nframes_this_cycle())
+ << "cycle length:" << jack_port->nframes_this_cycle()
+ << endl;
+#endif
+
+ if (next_tick_offset >= jack_port->nframes_this_cycle())
return;
-
+
send_midi_clock_event(next_tick_offset);
-
+
_last_tick = next_tick;
}
+#endif // WITH_JACK_MIDI
}
double MidiClockTicker::one_ppqn_in_frames(nframes_t transport_position)
void MidiClockTicker::send_midi_clock_event(nframes_t offset)
{
- assert(_jack_port->is_process_thread());
-#if DEBUG_TICKER
+#ifdef WITH_JACK_MIDI
+ assert (MIDI::JACK_MidiPort::is_process_thread());
+#endif // WITH_JACK_MIDI
+#ifdef DEBUG_MIDI_CLOCK
cerr << "Tick with offset " << offset << endl;
-#endif
+#endif // DEBUG_MIDI_CLOCK
static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_CLOCK };
- _jack_port->write(_midi_clock_tick, 1, offset);
+ _midi_port->write(_midi_clock_tick, 1, offset);
}
void MidiClockTicker::send_start_event(nframes_t offset)
{
static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_START };
- _jack_port->write(_midi_clock_tick, 1, offset);
+ _midi_port->write(_midi_clock_tick, 1, offset);
}
void MidiClockTicker::send_continue_event(nframes_t offset)
{
static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_CONTINUE };
- _jack_port->write(_midi_clock_tick, 1, offset);
+ _midi_port->write(_midi_clock_tick, 1, offset);
}
void MidiClockTicker::send_stop_event(nframes_t offset)
{
static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_STOP };
- _jack_port->write(_midi_clock_tick, 1, offset);
+ _midi_port->write(_midi_clock_tick, 1, offset);
}
}
projects / ardour.git / blobdiff