along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id$
*/
#include <cmath>
#include <unistd.h>
#include <pbd/error.h>
-
+
#include <glibmm/thread.h>
#include <ardour/ardour.h>
#include <ardour/cycles.h>
#include <ardour/cycle_timer.h>
+#include <midi++/manager.h>
+
#include "i18n.h"
using namespace ARDOUR;
using namespace PBD;
using namespace std;
+/** Called by the audio engine when there is work to be done with JACK.
+ * @param nframes Number of frames to process.
+ */
void
-Session::process (jack_nframes_t nframes)
+Session::process (nframes_t nframes)
{
- if (synced_to_jack() && waiting_to_start) {
- if ( _engine.transport_state() == AudioEngine::TransportRolling) {
- actually_start_transport ();
- }
- }
+ // This is no more the appriopriate place to call cycle
+ // start. cycle_start needs to be called at the Route::roll()
+ // where the signals which we want to mixdown have been calculated.
+ //
+ MIDI::Manager::instance()->cycle_start(nframes);
+
+ _silent = false;
if (non_realtime_work_pending()) {
- if (g_atomic_int_get (&butler_should_do_transport_work) == 0) {
+ if (!transport_work_requested ()) {
post_transport ();
}
}
(this->*process_function) (nframes);
-
+
+ // the ticker is for sending time information like MidiClock
+ nframes_t transport_frames = transport_frame();
+ BBT_Time transport_bbt;
+ bbt_time(transport_frames, transport_bbt);
+ SMPTE::Time transport_smpte;
+ smpte_time(transport_frames, transport_smpte);
+ tick (transport_frames, transport_bbt, transport_smpte); /* EMIT SIGNAL */
+
SendFeedback (); /* EMIT SIGNAL */
+
+ MIDI::Manager::instance()->cycle_end();
}
void
}
int
-Session::no_roll (jack_nframes_t nframes, jack_nframes_t offset)
+Session::no_roll (nframes_t nframes, nframes_t offset)
{
- jack_nframes_t end_frame = _transport_frame + nframes;
+ nframes_t end_frame = _transport_frame + nframes; // FIXME: varispeed + no_roll ??
int ret = 0;
bool declick = get_transport_declick_required();
boost::shared_ptr<RouteList> r = routes.reader ();
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
- if ((*i)->hidden()) {
+ if ((*i)->is_hidden()) {
continue;
}
}
int
-Session::process_routes (jack_nframes_t nframes, jack_nframes_t offset)
+Session::process_routes (nframes_t nframes, nframes_t offset)
{
bool record_active;
int declick = get_transport_declick_required();
record_active = actively_recording(); // || (get_record_enabled() && get_punch_in());
+ const nframes_t start_frame = _transport_frame;
+ const nframes_t end_frame = _transport_frame + (nframes_t)floor(nframes * _transport_speed);
+
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
int ret;
- if ((*i)->hidden()) {
+ if ((*i)->is_hidden()) {
continue;
}
(*i)->set_pending_declick (declick);
- if ((ret = (*i)->roll (nframes, _transport_frame, _transport_frame + nframes, offset, declick, record_active, rec_monitors)) < 0) {
+ if ((ret = (*i)->roll (nframes, start_frame, end_frame, offset, declick, record_active, rec_monitors)) < 0) {
/* we have to do this here. Route::roll() for an AudioTrack will have called AudioDiskstream::process(),
and the DS will expect AudioDiskstream::commit() to be called. but we're aborting from that
}
int
-Session::silent_process_routes (jack_nframes_t nframes, jack_nframes_t offset)
+Session::silent_process_routes (nframes_t nframes, nframes_t offset)
{
bool record_active = actively_recording();
int declick = get_transport_declick_required();
/* force a declick out */
declick = -1;
}
+
+ const nframes_t start_frame = _transport_frame;
+ const nframes_t end_frame = _transport_frame + lrintf(nframes * _transport_speed);
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
int ret;
- if ((*i)->hidden()) {
+ if ((*i)->is_hidden()) {
continue;
}
- if ((ret = (*i)->silent_roll (nframes, _transport_frame, _transport_frame + nframes, offset, record_active, rec_monitors)) < 0) {
+ if ((ret = (*i)->silent_roll (nframes, start_frame, end_frame, offset, record_active, rec_monitors)) < 0) {
/* we have to do this here. Route::roll() for an AudioTrack will have called AudioDiskstream::process(),
and the DS will expect AudioDiskstream::commit() to be called. but we're aborting from that
}
void
-Session::commit_diskstreams (jack_nframes_t nframes, bool &needs_butler)
+Session::commit_diskstreams (nframes_t nframes, bool &needs_butler)
{
int dret;
float pworst = 1.0f;
}
/* force all diskstreams not handled by a Route to call do their stuff.
+ Note: the diskstreams that were handled by a route will just return zero
+ from this call, because they know they were processed. So in fact, this
+ also runs commit() for every diskstream.
*/
if ((dret = (*i)->process (_transport_frame, nframes, 0, actively_recording(), get_rec_monitors_input())) == 0) {
}
}
+/** Process callback used when the auditioner is not active */
void
-Session::process_with_events (jack_nframes_t nframes)
+Session::process_with_events (nframes_t nframes)
{
- Event* ev;
- jack_nframes_t this_nframes;
- jack_nframes_t end_frame;
- jack_nframes_t offset;
+ Event* ev;
+ nframes_t this_nframes;
+ nframes_t end_frame;
+ nframes_t offset;
bool session_needs_butler = false;
- jack_nframes_t stop_limit;
+ nframes_t stop_limit;
long frames_moved;
-
+
/* make sure the auditioner is silent */
if (auditioner) {
process_event (ev);
}
+ /* Events caused a transport change, send an MTC Full Frame (SMPTE) message.
+ * This is sent whether rolling or not, to give slaves an idea of ardour time
+ * on locates (and allow slow slaves to position and prepare for rolling)
+ */
+ if (_send_smpte_update) {
+ send_full_time_code(nframes);
+ }
+
if (!process_can_proceed()) {
- no_roll (nframes, 0);
+ _silent = true;
return;
}
-
+
if (events.empty() || next_event == events.end()) {
process_without_events (nframes);
return;
}
- end_frame = _transport_frame + nframes;
+ end_frame = _transport_frame + (nframes_t)abs(floor(nframes * _transport_speed));
{
Event* this_event;
Events::iterator the_next_one;
- if (post_transport_work & (PostTransportLocate|PostTransportStop)) {
- no_roll (nframes, 0);
+ if (!process_can_proceed()) {
+ _silent = true;
return;
}
no_roll (nframes, 0);
return;
}
+
+ if (!_exporting) {
+ send_midi_time_code_for_cycle (nframes);
+ }
if (actively_recording()) {
stop_limit = max_frames;
offset = 0;
+ /* yes folks, here it is, the actual loop where we really truly
+ process some audio */
while (nframes) {
- if (this_event == 0 || this_event->action_frame > end_frame || this_event->action_frame < _transport_frame) {
+ this_nframes = nframes; /* real (jack) time relative */
+ frames_moved = (long) floor (_transport_speed * nframes); /* transport relative */
- this_nframes = nframes;
-
- } else {
-
- /* compute nframes to next event */
-
- if (this_event->action_frame < end_frame) {
- this_nframes = nframes - (end_frame - this_event->action_frame);
- } else {
- this_nframes = nframes;
- }
- }
+ /* running an event, position transport precisely to its time */
+ if (this_event && this_event->action_frame <= end_frame && this_event->action_frame >= _transport_frame) {
+ /* this isn't quite right for reverse play */
+ frames_moved = (long) (this_event->action_frame - _transport_frame);
+ this_nframes = (nframes_t) abs( floor(frames_moved / _transport_speed) );
+ }
if (this_nframes) {
nframes -= this_nframes;
offset += this_nframes;
- frames_moved = (jack_nframes_t) floor (_transport_speed * this_nframes);
-
if (frames_moved < 0) {
decrement_transport_position (-frames_moved);
} else {
}
/* this is necessary to handle the case of seamless looping */
- /* not sure if it will work in conjuction with varispeed */
- end_frame = _transport_frame + nframes;
+ end_frame = _transport_frame + (nframes_t) floor (nframes * _transport_speed);
}
} /* implicit release of route lock */
-
- if (session_needs_butler) {
+ if (session_needs_butler)
summon_butler ();
- }
-
- if (!_engine.freewheeling() && session_send_mtc) {
- send_midi_time_code_in_another_thread ();
- }
-
- return;
-}
+}
void
Session::reset_slave_state ()
}
bool
-Session::follow_slave (jack_nframes_t nframes, jack_nframes_t offset)
+Session::follow_slave (nframes_t nframes, nframes_t offset)
{
float slave_speed;
- jack_nframes_t slave_transport_frame;
- jack_nframes_t this_delta;
+ nframes_t slave_transport_frame;
+ nframes_t this_delta;
int dir;
bool starting;
cerr << "delta = " << (int) (dir * this_delta)
<< " speed = " << slave_speed
<< " ts = " << _transport_speed
- << " M@"<< slave_transport_frame << " S@" << _transport_frame
+ << " M@ "<< slave_transport_frame << " S@ " << _transport_frame
<< " avgdelta = " << average_slave_delta
<< endl;
#endif
- if (Config->get_timecode_source_is_synced()) {
+ if (_slave->is_always_synced() || Config->get_timecode_source_is_synced()) {
/* if the TC source is synced, then we assume that its
speed is binary: 0.0 or 1.0
}
if (delta_accumulator_cnt != 0 || this_delta < _current_frame_rate) {
- delta_accumulator[delta_accumulator_cnt++] = dir*this_delta;
+ delta_accumulator[delta_accumulator_cnt++] = long(dir) * long(this_delta);
}
if (have_first_delta_accumulator) {
- average_slave_delta = 0;
+ average_slave_delta = 0L;
for (int i = 0; i < delta_accumulator_size; ++i) {
average_slave_delta += delta_accumulator[i];
}
- average_slave_delta /= delta_accumulator_size;
- if (average_slave_delta < 0) {
+ average_slave_delta /= long(delta_accumulator_size);
+ if (average_slave_delta < 0L) {
average_dir = -1;
- average_slave_delta = -average_slave_delta;
+ average_slave_delta = abs(average_slave_delta);
} else {
average_dir = 1;
}
if (slave_state == Waiting) {
// cerr << "waiting at " << slave_transport_frame << endl;
-
if (slave_transport_frame >= slave_wait_end) {
// cerr << "\tstart at " << _transport_frame << endl;
slave_state = Running;
bool ok = true;
- jack_nframes_t frame_delta = slave_transport_frame - _transport_frame;
+ nframes_t frame_delta = slave_transport_frame - _transport_frame;
boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
/* XXX what? */
}
- memset (delta_accumulator, 0, sizeof (jack_nframes_t) * delta_accumulator_size);
- average_slave_delta = 0;
+ memset (delta_accumulator, 0, sizeof (long) * delta_accumulator_size);
+ average_slave_delta = 0L;
this_delta = 0;
}
}
slave_state = Stopped;
}
- if (slave_state == Running && !Config->get_timecode_source_is_synced()) {
+ if (slave_state == Running && !_slave->is_always_synced() && !Config->get_timecode_source_is_synced()) {
if (_transport_speed != 0.0f) {
float adjusted_speed = slave_speed +
(delta / (adjust_seconds * _current_frame_rate));
- // cerr << "adjust using " << delta
- // << " towards " << adjusted_speed
- // << " ratio = " << adjusted_speed / slave_speed
- // << " current = " << _transport_speed
- // << " slave @ " << slave_speed
- // << endl;
+#if 0
+ cerr << "adjust using " << delta
+ << " towards " << adjusted_speed
+ << " ratio = " << adjusted_speed / slave_speed
+ << " current = " << _transport_speed
+ << " slave @ " << slave_speed
+ << endl;
+#endif
request_transport_speed (adjusted_speed);
#if 1
- if ((jack_nframes_t) average_slave_delta > _slave->resolution()) {
- // cerr << "not locked\n";
+ if (abs(average_slave_delta) > (long) _slave->resolution()) {
+ cerr << "average slave delta greater than slave resolution, going to silent motion\n";
goto silent_motion;
}
#endif
increment_transport_position (frames_moved);
}
- jack_nframes_t stop_limit;
+ nframes_t stop_limit;
if (actively_recording()) {
stop_limit = max_frames;
noroll:
/* don't move at all */
+ cerr << "********* noroll" << endl;
no_roll (nframes, 0);
return false;
}
void
-Session::process_without_events (jack_nframes_t nframes)
+Session::process_without_events (nframes_t nframes)
{
bool session_needs_butler = false;
- jack_nframes_t stop_limit;
+ nframes_t stop_limit;
long frames_moved;
- jack_nframes_t offset = 0;
+ nframes_t offset = 0;
- {
- if (post_transport_work & (PostTransportLocate|PostTransportStop)) {
- no_roll (nframes, 0);
- return;
- }
-
- if (!_exporting && _slave) {
- if (!follow_slave (nframes, 0)) {
- return;
- }
- }
+ if (!process_can_proceed()) {
+ _silent = true;
+ return;
+ }
- if (_transport_speed == 0) {
- no_roll (nframes, 0);
+ if (!_exporting && _slave) {
+ if (!follow_slave (nframes, 0)) {
return;
}
+ }
+
+ if (_transport_speed == 0) {
+ no_roll (nframes, 0);
+ return;
+ }
- if (actively_recording()) {
- stop_limit = max_frames;
+ if (!_exporting) {
+ send_midi_time_code_for_cycle (nframes);
+ }
+
+ if (actively_recording()) {
+ stop_limit = max_frames;
+ } else {
+ if (Config->get_stop_at_session_end()) {
+ stop_limit = current_end_frame();
} else {
- if (Config->get_stop_at_session_end()) {
- stop_limit = current_end_frame();
- } else {
- stop_limit = max_frames;
- }
+ stop_limit = max_frames;
}
+ }
- if (maybe_stop (stop_limit)) {
- no_roll (nframes, 0);
- return;
- }
+ if (maybe_stop (stop_limit)) {
+ no_roll (nframes, 0);
+ return;
+ }
- if (maybe_sync_start (nframes, offset)) {
- return;
- }
+ if (maybe_sync_start (nframes, offset)) {
+ return;
+ }
- click (_transport_frame, nframes, offset);
+ click (_transport_frame, nframes, offset);
- prepare_diskstreams ();
+ prepare_diskstreams ();
- frames_moved = (long) floor (_transport_speed * nframes);
+ frames_moved = (long) floor (_transport_speed * nframes);
- if (process_routes (nframes, offset)) {
- no_roll (nframes, offset);
- return;
- }
+ if (process_routes (nframes, offset)) {
+ no_roll (nframes, offset);
+ return;
+ }
- commit_diskstreams (nframes, session_needs_butler);
+ commit_diskstreams (nframes, session_needs_butler);
- if (frames_moved < 0) {
- decrement_transport_position (-frames_moved);
- } else {
- increment_transport_position (frames_moved);
- }
+ if (frames_moved < 0) {
+ decrement_transport_position (-frames_moved);
+ } else {
+ increment_transport_position (frames_moved);
+ }
- maybe_stop (stop_limit);
- check_declick_out ();
+ maybe_stop (stop_limit);
+ check_declick_out ();
- } /* implicit release of route lock */
-
- if (session_needs_butler) {
+ if (session_needs_butler)
summon_butler ();
- }
-
- if (!_engine.freewheeling() && session_send_mtc) {
- send_midi_time_code_in_another_thread ();
- }
-
- return;
-}
+}
+/** Process callback used when the auditioner is active.
+ * @param nframes number of frames to process.
+ */
void
-Session::process_audition (jack_nframes_t nframes)
+Session::process_audition (nframes_t nframes)
{
Event* ev;
boost::shared_ptr<RouteList> r = routes.reader ();
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
- if (!(*i)->hidden()) {
+ if (!(*i)->is_hidden()) {
(*i)->silence (nframes, 0);
}
}
}
if (!auditioner->active()) {
+ /* auditioner no longer active, so go back to the normal process callback */
process_function = &Session::process_with_events;
}
}
bool
-Session::maybe_sync_start (jack_nframes_t& nframes, jack_nframes_t& offset)
+Session::maybe_sync_start (nframes_t& nframes, nframes_t& offset)
{
- jack_nframes_t sync_offset;
-
+ nframes_t sync_offset;
+
if (!waiting_for_sync_offset) {
return false;
}
if (_engine.get_sync_offset (sync_offset) && sync_offset < nframes) {
+ /* generate silence up to the sync point, then
+ adjust nframes + offset to reflect whatever
+ is left to do.
+ */
+
no_roll (sync_offset, 0);
nframes -= sync_offset;
offset += sync_offset;
waiting_for_sync_offset = false;
if (nframes == 0) {
- return true; // done
+ return true; // done, nothing left to process
}
} else {
+
+ /* sync offset point is not within this process()
+ cycle, so just generate silence. and don't bother
+ with any fancy stuff here, just the minimal silence.
+ */
+
+ g_atomic_int_inc (&processing_prohibited);
no_roll (nframes, 0);
- return true; // done
+ g_atomic_int_dec_and_test (&processing_prohibited);
+
+ if (Config->get_locate_while_waiting_for_sync()) {
+ if (micro_locate (nframes)) {
+ /* XXX ERROR !!! XXX */
+ }
+ }
+
+ return true; // done, nothing left to process
}
return false;
projects / ardour.git / blobdiff