X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fticker.cc;h=7a2fa32ad76b1dfe65794fa44fc64c0314d6312f;hb=91fac4c96dc6210dcc056da70dc608700d7eb570;hp=0a4081bec7d63add3a6cf25c3355e9abeb0313c6;hpb=aaabaf5d3c8624f398809bb468e2b121a23abda0;p=ardour.git diff --git a/libs/ardour/ticker.cc b/libs/ardour/ticker.cc index 0a4081bec7..7a2fa32ad7 100644 --- a/libs/ardour/ticker.cc +++ b/libs/ardour/ticker.cc @@ -19,13 +19,13 @@ #include "pbd/compose.h" #include "pbd/stacktrace.h" -#include "midi++/port.h" -#include "midi++/jack_midi_port.h" -#include "midi++/manager.h" - #include "evoral/midi_events.h" +#include "ardour/async_midi_port.h" #include "ardour/audioengine.h" +#include "ardour/midi_buffer.h" +#include "ardour/midi_port.h" +#include "ardour/lmath.h" #include "ardour/ticker.h" #include "ardour/session.h" #include "ardour/tempo.h" @@ -39,72 +39,80 @@ class MidiClockTicker::Position : public Timecode::BBT_Time { public: - Position() : speed(0.0f), frame(0) { } - ~Position() { } - - /** Sync timing information taken from the given Session - @return True if timings differed */ - bool sync (Session* s) { - - bool didit = false; - - double sp = s->transport_speed(); - framecnt_t fr = s->transport_frame(); - - if (speed != sp) { - speed = sp; - didit = true; - } - - if (frame != fr) { - frame = fr; - didit = true; - } - - /* Midi beats and clocks always gets updated for now */ - - s->bbt_time (this->frame, *this); - - const TempoMap& tempo = s->tempo_map(); - - const double divisions = tempo.meter_at(frame).divisions_per_bar(); - const double divisor = tempo.meter_at(frame).note_divisor(); - const double qnote_scale = divisor * 0.25f; - - /** Midi Beats in terms of Song Position Pointer is equivalent to total - sixteenth notes at 'time' */ - - midi_beats = (((bars - 1) * divisions) + beats - 1); - midi_beats += (double)ticks / (double)Position::ticks_per_beat * qnote_scale; - midi_beats *= 16.0f / divisor; - - midi_clocks = midi_beats * 6.0f; - - return didit; - } - - double speed; - framecnt_t frame; - double midi_beats; - double midi_clocks; - - void print (std::ostream& s) { - s << "frames: " << frame << " midi beats: " << midi_beats << " speed: " << speed; - } + Position() : speed(0.0f), frame(0), midi_beats(0) { } + ~Position() { } + + /** Sync timing information taken from the given Session + * @return True if timings differed + */ + + bool sync (Session* s) { + + bool changed = false; + + double sp = s->transport_speed(); + framecnt_t fr = s->transport_frame(); + + if (speed != sp) { + speed = sp; + changed = true; + } + + if (frame != fr) { + frame = fr; + changed = true; + } + + /* Midi beats and clocks always gets updated for now */ + + s->bbt_time (this->frame, *this); + + const TempoMap& tempo = s->tempo_map(); + + const double divisions = tempo.meter_at(frame).divisions_per_bar(); + const double divisor = tempo.meter_at(frame).note_divisor(); + const double qnote_scale = divisor * 0.25f; + double mb; + + /** Midi Beats in terms of Song Position Pointer is equivalent to total + * sixteenth notes at 'time' + */ + + mb = (((bars - 1) * divisions) + beats - 1); + mb += (double)ticks / (double)Position::ticks_per_beat * qnote_scale; + mb *= 16.0f / divisor; + + if (mb != midi_beats) { + midi_beats = mb; + midi_clocks = midi_beats * 6.0f; + changed = true; + } + + return changed; + } + + double speed; + framecnt_t frame; + double midi_beats; + double midi_clocks; + + void print (std::ostream& s) { + s << "frames: " << frame << " midi beats: " << midi_beats << " speed: " << speed; + } }; MidiClockTicker::MidiClockTicker () - : _midi_port (0) - , _ppqn (24) + : _ppqn (24) , _last_tick (0.0) + , _send_pos (false) + , _send_state (false) { _pos.reset (new Position()); } MidiClockTicker::~MidiClockTicker() { - _midi_port = 0; _pos.reset (0); } @@ -115,7 +123,6 @@ MidiClockTicker::set_session (Session* s) if (_session) { _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)); _session->Located.connect_same_thread (_session_connections, boost::bind (&MidiClockTicker::session_located, this)); @@ -129,7 +136,7 @@ MidiClockTicker::session_located() { DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Session Located: %1, speed: %2\n", _session->transport_frame(), _session->transport_speed())); - if (0 == _session || ! _pos->sync (_session)) { + if (!_session || !_pos->sync (_session)) { return; } @@ -139,41 +146,20 @@ MidiClockTicker::session_located() return; } - if (_pos->speed == 0.0f) { - uint32_t where = llrint (_pos->midi_beats); - send_position_event (where, 0); - } else if (_pos->speed == 1.0f) { -#if 1 - /* Experimental. To really do this and have accuracy, the - stop/locate/continue sequence would need queued to send immediately - before the next midi clock. */ - - send_stop_event (0); - - if (_pos->frame == 0) { - send_start_event (0); - } else { - uint32_t where = llrint (_pos->midi_beats); - send_position_event (where, 0); - send_continue_event (0); - } -#endif - } else { - /* Varispeed not supported */ - } + _send_pos = true; } void MidiClockTicker::session_going_away () { SessionHandlePtr::session_going_away(); - _midi_port = 0; + _midi_port.reset (); } void MidiClockTicker::update_midi_clock_port() { - _midi_port = MIDI::Manager::instance()->midi_clock_output_port(); + _midi_port = _session->midi_clock_output_port(); } void @@ -204,48 +190,11 @@ MidiClockTicker::transport_state_changed() return; } - if (_pos->speed == 1.0f) { - - if (_session->get_play_loop()) { - assert(_session->locations()->auto_loop_location()); - - if (_pos->frame == _session->locations()->auto_loop_location()->start()) { - send_start_event(0); - } else { - send_continue_event(0); - } - - } else if (_pos->frame == 0) { - send_start_event(0); - } else { - send_continue_event(0); - } - - // send_midi_clock_event (0); - - } else if (_pos->speed == 0.0f) { - send_stop_event (0); - send_position_event (llrint (_pos->midi_beats), 0); - } + _send_state = true; // tick (_pos->frame); } -void -MidiClockTicker::position_changed (framepos_t) -{ -#if 0 - const double speed = _session->transport_speed(); - DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Transport Position Change: %1, speed: %2\n", position, speed)); - - if (speed == 0.0f && Config->get_send_midi_clock()) { - send_position_event (position, 0); - } - - _last_tick = position; -#endif -} - void MidiClockTicker::transport_looped() { @@ -270,18 +219,65 @@ MidiClockTicker::transport_looped() } void -MidiClockTicker::tick (const framepos_t& /* transport_frame */) +MidiClockTicker::tick (const framepos_t& /* transport_frame */, pframes_t nframes) { - if (!Config->get_send_midi_clock() || _session == 0 || _session->transport_speed() != 1.0f || _midi_port == 0) { + if (!Config->get_send_midi_clock() || _session == 0 || _midi_port == 0) { return; } - MIDI::JackMIDIPort* mp = dynamic_cast (_midi_port); - if (! mp) { + if (_send_pos) { + if (_pos->speed == 0.0f) { + send_position_event (llrint (_pos->midi_beats), 0, nframes); + } else if (_pos->speed == 1.0f) { + send_stop_event (0, nframes); + + if (_pos->frame == 0) { + send_start_event (0, nframes); + } else { + send_position_event (llrint (_pos->midi_beats), 0, nframes); + send_continue_event (0, nframes); + } + } else { + /* Varispeed not supported */ + } + + _send_pos = false; + } + + + if (_send_state) { + if (_pos->speed == 1.0f) { + if (_session->get_play_loop()) { + assert(_session->locations()->auto_loop_location()); + + if (_pos->frame == _session->locations()->auto_loop_location()->start()) { + send_start_event (0, nframes); + } else { + send_continue_event (0, nframes); + } + + } else if (_pos->frame == 0) { + send_start_event (0, nframes); + } else { + send_continue_event (0, nframes); + } + + // send_midi_clock_event (0); + + } else if (_pos->speed == 0.0f) { + send_stop_event (0, nframes); + send_position_event (llrint (_pos->midi_beats), 0, nframes); + } + + _send_state = false; + } + + if (_session->transport_speed() != 1.0f) { + /* no varispeed support and nothing to do after this if stopped */ return; } - const framepos_t end = _pos->frame + mp->nframes_this_cycle(); + const framepos_t end = _pos->frame + nframes; double iter = _last_tick; while (true) { @@ -291,14 +287,14 @@ MidiClockTicker::tick (const framepos_t& /* transport_frame */) DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Tick: iter: %1, last tick time: %2, next tick time: %3, offset: %4, cycle length: %5\n", - iter, _last_tick, next_tick, next_tick_offset, mp ? mp->nframes_this_cycle() : 0)); + iter, _last_tick, next_tick, next_tick_offset, nframes)); - if (!mp || (next_tick_offset >= mp->nframes_this_cycle())) { + if (next_tick_offset >= nframes) { break; } if (next_tick_offset >= 0) { - send_midi_clock_event (next_tick_offset); + send_midi_clock_event (next_tick_offset, nframes); } iter = next_tick; @@ -308,7 +304,6 @@ MidiClockTicker::tick (const framepos_t& /* transport_frame */) _pos->frame = end; } - double MidiClockTicker::one_ppqn_in_frames (framepos_t transport_position) { @@ -322,59 +317,64 @@ MidiClockTicker::one_ppqn_in_frames (framepos_t transport_position) } void -MidiClockTicker::send_midi_clock_event (pframes_t offset) +MidiClockTicker::send_midi_clock_event (pframes_t offset, pframes_t nframes) { if (!_midi_port) { return; } - DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Tick with offset %1\n", offset)); + static uint8_t msg = MIDI_CMD_COMMON_CLOCK; + + MidiBuffer& mb (_midi_port->get_midi_buffer (nframes)); + mb.push_back (offset, 1, &msg); - static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_CLOCK }; - _midi_port->write (_midi_clock_tick, 1, offset); + DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Tick with offset %1\n", offset)); } void -MidiClockTicker::send_start_event (pframes_t offset) +MidiClockTicker::send_start_event (pframes_t offset, pframes_t nframes) { if (!_midi_port) { return; } - DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Start %1\n", _last_tick)); + static uint8_t msg = { MIDI_CMD_COMMON_START }; + MidiBuffer& mb (_midi_port->get_midi_buffer (nframes)); + mb.push_back (offset, 1, &msg); - static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_START }; - _midi_port->write (_midi_clock_tick, 1, offset); + DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Start %1\n", _last_tick)); } void -MidiClockTicker::send_continue_event (pframes_t offset) +MidiClockTicker::send_continue_event (pframes_t offset, pframes_t nframes) { if (!_midi_port) { return; } - DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Continue %1\n", _last_tick)); + static uint8_t msg = { MIDI_CMD_COMMON_CONTINUE }; + MidiBuffer& mb (_midi_port->get_midi_buffer (nframes)); + mb.push_back (offset, 1, &msg); - static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_CONTINUE }; - _midi_port->write (_midi_clock_tick, 1, offset); + DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Continue %1\n", _last_tick)); } void -MidiClockTicker::send_stop_event (pframes_t offset) +MidiClockTicker::send_stop_event (pframes_t offset, pframes_t nframes) { if (!_midi_port) { return; } - DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Stop %1\n", _last_tick)); + static uint8_t msg = MIDI_CMD_COMMON_STOP; + MidiBuffer& mb (_midi_port->get_midi_buffer (nframes)); + mb.push_back (offset, 1, &msg); - static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_STOP }; - _midi_port->write (_midi_clock_tick, 1, offset); + DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Stop %1\n", _last_tick)); } void -MidiClockTicker::send_position_event (uint32_t midi_beats, pframes_t offset) +MidiClockTicker::send_position_event (uint32_t midi_beats, pframes_t offset, pframes_t nframes) { if (!_midi_port) { return; @@ -386,13 +386,15 @@ MidiClockTicker::send_position_event (uint32_t midi_beats, pframes_t offset) } /* split midi beats into a 14bit value */ - MIDI::byte msg[3] = { - MIDI_CMD_COMMON_SONG_POS, - midi_beats & 0x007f, - midi_beats & 0x3f80 - }; + MIDI::byte msg[3]; + msg[0] = MIDI_CMD_COMMON_SONG_POS; + msg[1] = midi_beats & 0x007f; + msg[2] = midi_beats >> 7; + + MidiBuffer& mb (_midi_port->get_midi_buffer (nframes)); + mb.push_back (offset, 3, &msg[0]); - _midi_port->midimsg (msg, sizeof (msg), offset); + DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Song Position Sent: %1 to %2 (events now %3, buf = %4)\n", midi_beats, _midi_port->name(), + mb.size(), &mb)); - DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Song Position Sent: %1\n", midi_beats)); }