X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fticker.cc;h=dbe81ae32cae2de6965360e249dde58148366a3f;hb=db6706429643d80e68a050daa015d17f36d5321b;hp=0012d47abfc3f60c9c2598b03f58aa9a5d52e3b3;hpb=2e61c9c034a768286e98c5baffdaed9b3931fc81;p=ardour.git diff --git a/libs/ardour/ticker.cc b/libs/ardour/ticker.cc index 0012d47abf..dbe81ae32c 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 @@ -22,53 +22,65 @@ #include "ardour/session.h" #include "ardour/tempo.h" -#define DEBUG_TICKER 0 +#ifdef DEBUG_MIDI_CLOCK +#include +using namespace std; +#endif + +using namespace ARDOUR; -namespace ARDOUR +void Ticker::set_session (Session* s) { + SessionHandlePtr::set_session (s); + if (_session) { + _session->tick.connect_same_thread (_session_connections, boost::bind (&Ticker::tick, this, _1, _2, _3)); + } +} -void Ticker::set_session(Session& s) +void MidiClockTicker::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)); + Ticker::set_session (s); + + if (_session) { + _session->MIDIClock_PortChanged.connect_same_thread (_session_connections, boost::bind (&MidiClockTicker::update_midi_clock_port, this)); + _session->TransportStateChange.connect_same_thread (_session_connections, boost::bind (&MidiClockTicker::transport_state_changed, this)); + _session->PositionChanged.connect_same_thread (_session_connections, boost::bind (&MidiClockTicker::position_changed, this, _1)); + _session->TransportLooped.connect_same_thread (_session_connections, boost::bind (&MidiClockTicker::transport_looped, this)); + update_midi_clock_port(); } } -void MidiClockTicker::set_session(Session& s) +void +MidiClockTicker::session_going_away () { - 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)); - update_midi_clock_port(); - } + SessionHandlePtr::session_going_away(); + _midi_port = 0; } void MidiClockTicker::update_midi_clock_port() { - _midi_port = _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()) { @@ -81,24 +93,24 @@ 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)); + + tick(position, *((ARDOUR::BBT_Time *) 0), *((Timecode::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; } @@ -107,50 +119,48 @@ void MidiClockTicker::transport_looped() Location* loop_location = _session->locations()->auto_loop_location(); assert(loop_location); -#if DEBUG_TICKER +#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 Timecode::Time& /*transport_smpt*/) { -#ifdef WITH_JACK_MIDI - if (!Config->get_send_midi_clock() || _session == 0 || _session->transport_speed() != 1.0f) + if (!Config->get_send_midi_clock() || _session == 0 || _session->transport_speed() != 1.0f || _midi_port == 0) return; MIDI::JACK_MidiPort* jack_port = dynamic_cast(_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 - + << "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) @@ -169,33 +179,49 @@ double MidiClockTicker::one_ppqn_in_frames(nframes_t transport_position) void MidiClockTicker::send_midi_clock_event(nframes_t offset) { + if (!_midi_port) { + return; + } + #ifdef WITH_JACK_MIDI assert (MIDI::JACK_MidiPort::is_process_thread()); #endif // WITH_JACK_MIDI -#if DEBUG_TICKER +#ifdef DEBUG_MIDI_CLOCK cerr << "Tick with offset " << offset << endl; -#endif // DEBUG_TICKER +#endif // DEBUG_MIDI_CLOCK static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_CLOCK }; _midi_port->write(_midi_clock_tick, 1, offset); } void MidiClockTicker::send_start_event(nframes_t offset) { + if (!_midi_port) { + return; + } + static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_START }; _midi_port->write(_midi_clock_tick, 1, offset); } void MidiClockTicker::send_continue_event(nframes_t offset) { + if (!_midi_port) { + return; + } + static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_CONTINUE }; _midi_port->write(_midi_clock_tick, 1, offset); } void MidiClockTicker::send_stop_event(nframes_t offset) { + if (!_midi_port) { + return; + } + static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_STOP }; _midi_port->write(_midi_clock_tick, 1, offset); } -} +