#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"
{
public:
- Position() : speed(0.0f), frame(0) { }
- ~Position() { }
+ 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) {
+ /** Sync timing information taken from the given Session
+ * @return True if timings differed
+ */
- bool didit = false;
+ bool sync (Session* s) {
- double sp = s->transport_speed();
- framecnt_t fr = s->transport_frame();
+ bool changed = false;
- if (speed != sp) {
- speed = sp;
- didit = true;
- }
+ double sp = s->transport_speed();
+ framecnt_t fr = s->transport_frame();
- if (frame != fr) {
- frame = fr;
+ if (speed != sp) {
+ speed = sp;
+ changed = true;
+ }
- s->bbt_time (this->frame, *this);
+ if (frame != fr) {
+ frame = fr;
+ changed = true;
+ }
- const TempoMap& tempo = s->tempo_map();
+ /* Midi beats and clocks always gets updated for now */
- 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;
+ s->bbt_time (this->frame, *this);
- /* Midi Beats in terms of Song Position Pointer is equivalent to total
- sixteenth notes at 'time' */
+ const TempoMap& tempo = s->tempo_map();
+ const Meter& meter = tempo.meter_at_frame (frame);
- midi_beats = (((bars - 1) * divisions) + beats - 1);
- midi_beats += (double)ticks / (double)Position::ticks_per_beat * qnote_scale;
- midi_beats *= 16.0f / divisor;
+ const double divisions = meter.divisions_per_bar();
+ const double divisor = meter.note_divisor();
+ const double qnote_scale = divisor * 0.25f;
+ double mb;
- midi_clocks = midi_beats * 6.0f;
+ /** Midi Beats in terms of Song Position Pointer is equivalent to total
+ * sixteenth notes at 'time'
+ */
- didit = true;
- }
+ mb = (((bars - 1) * divisions) + beats - 1);
+ mb += (double)ticks / (double)Position::ticks_per_beat * qnote_scale;
+ mb *= 16.0f / divisor;
- return didit;
- }
+ if (mb != midi_beats) {
+ midi_beats = mb;
+ midi_clocks = midi_beats * 6.0f;
+ changed = true;
+ }
- double speed;
- framecnt_t frame;
- double midi_beats;
- double midi_clocks;
+ return changed;
+ }
- void print (std::ostream& s) {
- s << "frames: " << frame << " midi beats: " << midi_beats << " speed: " << speed;
- }
+ 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 = new Position();
+ _pos.reset (new Position());
}
MidiClockTicker::~MidiClockTicker()
{
- _midi_port = 0;
- if (_pos) {
- delete _pos;
- _pos = 0;
- }
+ _pos.reset (0);
}
void
MidiClockTicker::set_session (Session* s)
{
SessionHandlePtr::set_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));
}
}
-static bool need_reset = false;
-
void
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;
}
_last_tick = _pos->frame;
- need_reset = true;
- if (_pos->speed == 0.0f && Config->get_send_midi_clock()) {
- uint32_t where = std::floor (_pos->midi_beats);
- send_position_event (where, 0);
+ if (!Config->get_send_midi_clock()) {
return;
}
+
+ _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
return;
}
- DEBUG_TRACE (PBD::DEBUG::MidiClock,
+ DEBUG_TRACE (DEBUG::MidiClock,
string_compose ("Transport state change @ %4, speed: %1 position: %2 play loop: %3\n",
_pos->speed, _pos->frame, _session->get_play_loop(), _pos->frame)
);
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 (std::floor (_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 (PBD::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()
{
Location* loop_location = _session->locations()->auto_loop_location();
assert(loop_location);
- DEBUG_TRACE (PBD::DEBUG::MidiClock,
+ DEBUG_TRACE (DEBUG::MidiClock,
string_compose ("Transport looped, position: %1, loop start: %2, loop end: %3, play loop: %4\n",
_session->transport_frame(), loop_location->start(), loop_location->end(), _session->get_play_loop())
);
}
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;
+ }
+
+ 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 + nframes;
double iter = _last_tick;
- double clock_delta = one_ppqn_in_frames (transport_frame);
while (true) {
- double next_tick = iter + clock_delta;
- frameoffset_t next_tick_offset = llrint (next_tick) - transport_frame;
+ double clock_delta = one_ppqn_in_frames (llrint (iter));
+ double next_tick = iter + clock_delta;
+ frameoffset_t next_tick_offset = llrint (next_tick) - end;
- MIDI::JackMIDIPort* mp = dynamic_cast<MIDI::JackMIDIPort*> (_midi_port);
-
- DEBUG_TRACE (PBD::DEBUG::MidiClock,
- string_compose ("Transport: %1, last tick time: %2, next tick time: %3, offset: %4, cycle length: %5\n",
- transport_frame, _last_tick, next_tick, next_tick_offset, mp ? mp->nframes_this_cycle() : 0));
+ 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, nframes));
-
- if (!mp || (next_tick_offset >= mp->nframes_this_cycle())) {
- return;
+ if (next_tick_offset >= nframes) {
+ break;
}
if (next_tick_offset >= 0) {
- send_midi_clock_event (next_tick_offset);
- _last_tick += clock_delta;
+ send_midi_clock_event (next_tick_offset, nframes);
}
iter = next_tick;
}
- _pos->frame = _last_tick;
+ _last_tick = iter;
+ _pos->frame = end;
}
double
MidiClockTicker::one_ppqn_in_frames (framepos_t transport_position)
{
- const Tempo& current_tempo = _session->tempo_map().tempo_at (transport_position);
- double frames_per_beat = current_tempo.frames_per_beat (_session->nominal_frame_rate());
+ const Tempo& current_tempo = _session->tempo_map().tempo_at_frame (transport_position);
+ double frames_per_beat = _session->tempo_map().frames_per_beat_at (transport_position, _session->nominal_frame_rate());
double quarter_notes_per_beat = 4.0 / current_tempo.note_type();
double frames_per_quarter_note = frames_per_beat / quarter_notes_per_beat;
}
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 (PBD::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 (PBD::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 (PBD::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 (PBD::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;
}
/* 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 (PBD::DEBUG::MidiClock, string_compose ("Song Position Sent: %1\n", midi_beats));
}
projects / ardour.git / blobdiff