diff options
Diffstat (limited to 'libs/ardour/ticker.cc')
-rw-r--r-- | libs/ardour/ticker.cc | 72 |
1 files changed, 36 insertions, 36 deletions
diff --git a/libs/ardour/ticker.cc b/libs/ardour/ticker.cc index de42683c15..6f831e8808 100644 --- a/libs/ardour/ticker.cc +++ b/libs/ardour/ticker.cc @@ -1,5 +1,5 @@ /* - 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 @@ -26,25 +26,25 @@ namespace ARDOUR { -void Ticker::set_session(Session& s) +void Ticker::set_session(Session& s) { _session = &s; - + 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)); + _session->PositionChanged .connect(mem_fun (*this, &MidiClockTicker::position_changed)); + _session->TransportLooped .connect(mem_fun (*this, &MidiClockTicker::transport_looped)); update_midi_clock_port(); } } @@ -60,18 +60,18 @@ void MidiClockTicker::transport_state_changed() /* no midi clock during export, for now */ return; } - + float speed = _session->transport_speed(); nframes_t position = _session->transport_frame(); -#ifdef DEBUG_MIDI_CLOCK +#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()) { @@ -84,24 +84,24 @@ void MidiClockTicker::transport_state_changed() } 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) { -#ifdef DEBUG_MIDI_CLOCK +#ifdef DEBUG_MIDI_CLOCK cerr << "Position changed:" << position << endl; -#endif +#endif _last_tick = position; } @@ -110,15 +110,15 @@ void MidiClockTicker::transport_looped() Location* loop_location = _session->locations()->auto_loop_location(); assert(loop_location); -#ifdef DEBUG_MIDI_CLOCK +#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; @@ -132,25 +132,25 @@ void MidiClockTicker::tick(const nframes_t& transport_frames, const BBT_Time& /* 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; - -#ifdef DEBUG_MIDI_CLOCK - 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 - + << "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 @@ -175,7 +175,7 @@ void MidiClockTicker::send_midi_clock_event(nframes_t offset) #ifdef WITH_JACK_MIDI assert (MIDI::JACK_MidiPort::is_process_thread()); #endif // WITH_JACK_MIDI -#ifdef DEBUG_MIDI_CLOCK +#ifdef DEBUG_MIDI_CLOCK cerr << "Tick with offset " << offset << endl; #endif // DEBUG_MIDI_CLOCK static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_CLOCK }; |