#include "pbd/error.h"
#include "pbd/enumwriter.h"
-#include <glibmm/thread.h>
+#include <glibmm/threads.h>
-#include "ardour/ardour.h"
#include "ardour/audioengine.h"
#include "ardour/auditioner.h"
#include "ardour/butler.h"
+#include "ardour/cycle_timer.h"
#include "ardour/debug.h"
+#include "ardour/graph.h"
+#include "ardour/port.h"
#include "ardour/process_thread.h"
+#include "ardour/scene_changer.h"
#include "ardour/session.h"
#include "ardour/slave.h"
-#include "ardour/timestamps.h"
-#include "ardour/graph.h"
-#include "ardour/audio_port.h"
-#include "ardour/tempo.h"
-#include "ardour/cycle_timer.h"
+#include "ardour/ticker.h"
+#include "ardour/types.h"
-#include "midi++/manager.h"
#include "midi++/mmc.h"
-#include "i18n.h"
+#include "pbd/i18n.h"
using namespace ARDOUR;
using namespace PBD;
void
Session::process (pframes_t nframes)
{
- MIDI::Manager::instance()->cycle_start(nframes);
+ framepos_t transport_at_start = _transport_frame;
_silent = false;
(this->*process_function) (nframes);
+ /* realtime-safe meter-position and processor-order changes
+ *
+ * ideally this would be done in
+ * Route::process_output_buffers() but various functions
+ * callig it hold a _processor_lock reader-lock
+ */
+ boost::shared_ptr<RouteList> r = routes.reader ();
+ for (RouteList::const_iterator i = r->begin(); i != r->end(); ++i) {
+ if ((*i)->apply_processor_changes_rt()) {
+ _rt_emit_pending = true;
+ }
+ }
+ if (_rt_emit_pending) {
+ if (!_rt_thread_active) {
+ emit_route_signals ();
+ }
+ if (pthread_mutex_trylock (&_rt_emit_mutex) == 0) {
+ pthread_cond_signal (&_rt_emit_cond);
+ pthread_mutex_unlock (&_rt_emit_mutex);
+ _rt_emit_pending = false;
+ }
+ }
+
_engine.main_thread()->drop_buffers ();
- // the ticker is for sending time information like MidiClock
- framepos_t transport_frames = transport_frame();
- Timecode::BBT_Time transport_bbt;
+ /* deliver MIDI clock. Note that we need to use the transport frame
+ * position at the start of process(), not the value at the end of
+ * it. We may already have ticked() because of a transport state
+ * change, for example.
+ */
+
try {
- _tempo_map->bbt_time_rt (transport_frames, transport_bbt);
- Timecode::Time transport_timecode;
- timecode_time(transport_frames, transport_timecode);
- tick (transport_frames, transport_bbt, transport_timecode); /* EMIT SIGNAL */
+ if (!_silent && !_engine.freewheeling() && Config->get_send_midi_clock() && (transport_speed() == 1.0f || transport_speed() == 0.0f) && midi_clock->has_midi_port()) {
+ midi_clock->tick (transport_at_start, nframes);
+ }
+
+ _scene_changer->run (transport_at_start, transport_at_start + nframes);
+
} catch (...) {
/* don't bother with a message */
}
SendFeedback (); /* EMIT SIGNAL */
-
- MIDI::Manager::instance()->cycle_end();
}
int
Session::no_roll (pframes_t nframes)
{
PT_TIMING_CHECK (4);
-
+
framepos_t end_frame = _transport_frame + nframes; // FIXME: varispeed + no_roll ??
int ret = 0;
- bool declick = get_transport_declick_required();
+ int declick = (config.get_use_transport_fades() ? get_transport_declick_required() : false);
boost::shared_ptr<RouteList> r = routes.reader ();
if (_click_io) {
_click_io->silence (nframes);
}
- if (1 || _process_graph->threads_in_use() > 0) {
+ ltc_tx_send_time_code_for_cycle (_transport_frame, end_frame, _target_transport_speed, _transport_speed, nframes);
+
+ if (_process_graph) {
DEBUG_TRACE(DEBUG::ProcessThreads,"calling graph/no-roll\n");
_process_graph->routes_no_roll( nframes, _transport_frame, end_frame, non_realtime_work_pending(), declick);
} else {
PT_TIMING_CHECK (10);
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
- if ((*i)->is_hidden()) {
+ if ((*i)->is_auditioner()) {
continue;
}
return ret;
}
+/** @param need_butler to be set to true by this method if it needs the butler,
+ * otherwise it must be left alone.
+ */
int
Session::process_routes (pframes_t nframes, bool& need_butler)
{
- int declick = get_transport_declick_required();
+ int declick = (config.get_use_transport_fades() ? get_transport_declick_required() : false);
boost::shared_ptr<RouteList> r = routes.reader ();
- if (transport_sub_state & StopPendingCapture) {
- /* force a declick out */
- declick = -1;
- }
-
const framepos_t start_frame = _transport_frame;
const framepos_t end_frame = _transport_frame + floor (nframes * _transport_speed);
- /* XXX this is hack to force use of the graph even if we are only
- using 1 thread. its needed because otherwise when we remove
- tracks, the graph never gets updated.
- */
- if (1 || _process_graph->threads_in_use() > 0) {
+ if (_process_graph) {
DEBUG_TRACE(DEBUG::ProcessThreads,"calling graph/process-routes\n");
- _process_graph->process_routes (nframes, start_frame, end_frame, declick, need_butler);
+ if (_process_graph->process_routes (nframes, start_frame, end_frame, declick, need_butler) < 0) {
+ stop_transport ();
+ return -1;
+ }
} else {
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
int ret;
- if ((*i)->is_hidden()) {
+ if ((*i)->is_auditioner()) {
continue;
}
(*i)->set_pending_declick (declick);
- if ((ret = (*i)->roll (nframes, start_frame, end_frame, declick, need_butler)) < 0) {
+ bool b = false;
+
+ if ((ret = (*i)->roll (nframes, start_frame, end_frame, declick, b)) < 0) {
stop_transport ();
return -1;
}
+
+ if (b) {
+ need_butler = true;
+ }
}
}
return 0;
}
+/** @param need_butler to be set to true by this method if it needs the butler,
+ * otherwise it must be left alone.
+ */
int
Session::silent_process_routes (pframes_t nframes, bool& need_butler)
{
const framepos_t start_frame = _transport_frame;
const framepos_t end_frame = _transport_frame + lrintf(nframes * _transport_speed);
- /* XXX this is hack to force use of the graph even if we are only
- using 1 thread. its needed because otherwise when we remove
- tracks, the graph never gets updated.
- */
- if (1 || _process_graph->threads_in_use() > 0) {
+ if (_process_graph) {
_process_graph->silent_process_routes (nframes, start_frame, end_frame, need_butler);
} else {
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
int ret;
- if ((*i)->is_hidden()) {
+ if ((*i)->is_auditioner()) {
continue;
}
- if ((ret = (*i)->silent_roll (nframes, start_frame, end_frame, need_butler)) < 0) {
+ bool b = false;
+
+ if ((ret = (*i)->silent_roll (nframes, start_frame, end_frame, b)) < 0) {
stop_transport ();
return -1;
}
+
+ if (b) {
+ need_butler = true;
+ }
}
}
Session::process_with_events (pframes_t nframes)
{
PT_TIMING_CHECK (3);
-
+
SessionEvent* ev;
pframes_t this_nframes;
framepos_t end_frame;
* and prepare for rolling)
*/
if (_send_timecode_update) {
- send_full_time_code (_transport_frame);
+ send_full_time_code (_transport_frame, nframes);
}
if (!process_can_proceed()) {
}
if (events.empty() || next_event == events.end()) {
+ try_run_lua (nframes); // also during export ?? ->move to process_without_events()
process_without_events (nframes);
return;
}
if (_transport_speed == 1.0) {
frames_moved = (framecnt_t) nframes;
} else {
- interpolation.set_target_speed (fabs(_target_transport_speed));
- interpolation.set_speed (fabs(_transport_speed));
+ interpolation.set_target_speed (_target_transport_speed);
+ interpolation.set_speed (_transport_speed);
frames_moved = (framecnt_t) interpolation.interpolate (0, nframes, 0, 0);
}
send_midi_time_code_for_cycle (_transport_frame, end_frame, nframes);
}
+ ltc_tx_send_time_code_for_cycle (_transport_frame, end_frame, _target_transport_speed, _transport_speed, nframes);
+
framepos_t stop_limit = compute_stop_limit ();
if (maybe_stop (stop_limit)) {
this_nframes = abs (floor(frames_moved / _transport_speed));
}
+ try_run_lua (this_nframes);
+
if (this_nframes) {
click (_transport_frame, this_nframes);
check_declick_out ();
}
- _engine.split_cycle (this_nframes);
+ if (nframes > 0) {
+ _engine.split_cycle (this_nframes);
+ }
/* now handle this event and all others scheduled for the same time */
slave_speed = 0.0f;
}
- if (_slave->is_always_synced() || config.get_timecode_source_is_synced()) {
+ if (_slave->is_always_synced() ||
+ (Config->get_timecode_source_is_synced() && (dynamic_cast<TimecodeSlave*>(_slave)) != 0)
+ ) {
/* if the TC source is synced, then we assume that its
speed is binary: 0.0 or 1.0
_slave_state, slave_transport_frame, slave_speed, this_delta, average_slave_delta));
- if (_slave_state == Running && !_slave->is_always_synced() && !config.get_timecode_source_is_synced()) {
+ if (_slave_state == Running && !_slave->is_always_synced() &&
+ !(Config->get_timecode_source_is_synced() && (dynamic_cast<TimecodeSlave*>(_slave)) != 0)
+ ) {
if (_transport_speed != 0.0f) {
#endif
if (_slave->give_slave_full_control_over_transport_speed()) {
- set_transport_speed (slave_speed, false, false);
+ set_transport_speed (slave_speed, 0, false, false);
//std::cout << "set speed = " << slave_speed << "\n";
} else {
float adjusted_speed = slave_speed + (1.5 * (delta / float(_current_frame_rate)));
}
#if 1
- if ((framecnt_t) abs(average_slave_delta) > _slave->resolution()) {
+ if (!actively_recording() && (framecnt_t) abs(average_slave_delta) > _slave->resolution()) {
cerr << "average slave delta greater than slave resolution (" << _slave->resolution() << "), going to silent motion\n";
goto silent_motion;
}
} else {
- _slave_state = Running;
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("slave stopped -> running at %1\n", slave_transport_frame));
+
+ memset (delta_accumulator, 0, sizeof (int32_t) * delta_accumulator_size);
+ average_slave_delta = 0L;
Location* al = _locations->auto_loop_location();
}
if (slave_transport_frame != _transport_frame) {
+ DEBUG_TRACE (DEBUG::Slave, string_compose ("require locate to run. eng: %1 -> sl: %2\n", _transport_frame, slave_transport_frame));
locate (slave_transport_frame, false, false);
}
+ _slave_state = Running;
}
break;
cerr << "cannot micro-seek\n";
/* XXX what? */
}
-
- memset (delta_accumulator, 0, sizeof (int32_t) * delta_accumulator_size);
- average_slave_delta = 0L;
}
}
force_locate (slave_transport_frame, false);
}
- _slave_state = Stopped;
+ reset_slave_state();
}
}
for now.
*/
- bool need_butler;
+ bool need_butler = false;
silent_process_routes (nframes, need_butler);
if (!_exporting && _slave) {
if (!follow_slave (nframes)) {
+ ltc_tx_send_time_code_for_cycle (_transport_frame, _transport_frame, 0, 0 , nframes);
return;
}
}
if (_transport_speed == 1.0) {
frames_moved = (framecnt_t) nframes;
} else {
- interpolation.set_target_speed (fabs(_target_transport_speed));
- interpolation.set_speed (fabs(_transport_speed));
+ interpolation.set_target_speed (_target_transport_speed);
+ interpolation.set_speed (_transport_speed);
frames_moved = (framecnt_t) interpolation.interpolate (0, nframes, 0, 0);
}
send_midi_time_code_for_cycle (_transport_frame, _transport_frame + frames_moved, nframes);
}
+ ltc_tx_send_time_code_for_cycle (_transport_frame, _transport_frame + frames_moved, _target_transport_speed, _transport_speed, nframes);
+
framepos_t const stop_limit = compute_stop_limit ();
if (maybe_stop (stop_limit)) {
get_track_statistics ();
- /* XXX: I'm not sure whether this is correct, but at least it
- matches process_with_events, so that this new frames_moved
- is -ve when transport speed is -ve. This means that the
- transport position is updated correctly when we are in
- reverse. It seems a bit wrong that we're not using the
- interpolator to compute this.
- */
-
- frames_moved = (framecnt_t) floor (_transport_speed * nframes);
-
if (frames_moved < 0) {
decrement_transport_position (-frames_moved);
} else {
boost::shared_ptr<RouteList> r = routes.reader ();
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
- if (!(*i)->is_hidden()) {
+ if (!(*i)->is_auditioner()) {
(*i)->silence (nframes);
}
}
/* if using a monitor section, run it because otherwise we don't hear anything */
- if (auditioner->needs_monitor()) {
- _monitor_out->passthru (_transport_frame, _transport_frame + nframes, nframes, false);
+ if (_monitor_out && auditioner->needs_monitor()) {
+ _monitor_out->monitor_run (_transport_frame, _transport_frame + nframes, nframes, false);
}
/* handle pending events */
switch (ev->type) {
case SessionEvent::SetLoop:
- set_play_loop (ev->yes_or_no);
+ set_play_loop (ev->yes_or_no, ev->speed);
break;
case SessionEvent::AutoLoop:
if (play_loop) {
+ /* roll after locate, do not flush, set "with loop"
+ true only if we are seamless looping
+ */
start_locate (ev->target_frame, true, false, Config->get_seamless_loop());
}
remove = false;
del = false;
break;
+ case SessionEvent::AutoLoopDeclick:
+ if (play_loop) {
+ /* Request a declick fade-out and a fade-in; the fade-out will happen
+ at the end of the loop, and the fade-in at the start.
+ */
+ transport_sub_state |= (PendingLoopDeclickOut | PendingLoopDeclickIn);
+ }
+ remove = false;
+ del = false;
+ break;
+
case SessionEvent::Locate:
if (ev->yes_or_no) {
- // cerr << "forced locate to " << ev->target_frame << endl;
+ /* args: do not roll after locate, do flush, not with loop */
locate (ev->target_frame, false, true, false);
} else {
- // cerr << "soft locate to " << ev->target_frame << endl;
+ /* args: do not roll after locate, do flush, not with loop */
start_locate (ev->target_frame, false, true, false);
}
_send_timecode_update = true;
case SessionEvent::LocateRoll:
if (ev->yes_or_no) {
- // cerr << "forced locate to+roll " << ev->target_frame << endl;
+ /* args: roll after locate, do flush, not with loop */
locate (ev->target_frame, true, true, false);
} else {
- // cerr << "soft locate to+roll " << ev->target_frame << endl;
+ /* args: roll after locate, do flush, not with loop */
start_locate (ev->target_frame, true, true, false);
}
_send_timecode_update = true;
break;
+ case SessionEvent::Skip:
+ if (Config->get_skip_playback()) {
+ start_locate (ev->target_frame, true, true, false);
+ _send_timecode_update = true;
+ }
+ remove = false;
+ del = false;
+ break;
+
case SessionEvent::LocateRollLocate:
// locate is handled by ::request_roll_at_and_return()
_requested_return_frame = ev->target_frame;
case SessionEvent::SetTransportSpeed:
- set_transport_speed (ev->speed, ev->yes_or_no, ev->second_yes_or_no);
+ set_transport_speed (ev->speed, ev->target_frame, ev->yes_or_no, ev->second_yes_or_no, ev->third_yes_or_no);
break;
case SessionEvent::PunchIn:
case SessionEvent::StopOnce:
if (!non_realtime_work_pending()) {
- stop_transport (ev->yes_or_no);
_clear_event_type (SessionEvent::StopOnce);
+ stop_transport (ev->yes_or_no);
}
remove = false;
del = false;
break;
case SessionEvent::RangeLocate:
+ /* args: roll after locate, do flush, not with loop */
start_locate (ev->target_frame, true, true, false);
remove = false;
del = false;
break;
case SessionEvent::SetSyncSource:
+ DEBUG_TRACE (DEBUG::Slave, "seen request for new slave\n");
use_sync_source (ev->slave);
break;
set_play_range (ev->audio_range, (ev->speed == 1.0f));
break;
+ case SessionEvent::CancelPlayAudioRange:
+ unset_play_range();
+ break;
+
case SessionEvent::RealTimeOperation:
process_rtop (ev);
del = false; // other side of RT request needs to clean up
default:
fatal << string_compose(_("Programming error: illegal event type in process_event (%1)"), ev->type) << endmsg;
- /*NOTREACHED*/
+ abort(); /*NOTREACHED*/
break;
};
if (!Config->get_stop_at_session_end ()) {
return max_framepos;
}
-
+
+ if (_slave) {
+ return max_framepos;
+ }
+
+
bool const punching_in = (config.get_punch_in () && _locations->auto_punch_location());
bool const punching_out = (config.get_punch_out () && _locations->auto_punch_location());
return current_end_frame ();
}
+
+
+
+/* dedicated thread for signal emission.
+ *
+ * while sending cross-thread signals from the process thread
+ * is fine in general, PBD::Signal's use of boost::function and
+ * boost:bind can produce a vast overhead which is not
+ * acceptable for low latency.
+ *
+ * This works around the issue by moving the boost overhead
+ * out of the RT thread. The overall load is probably higher but
+ * the realtime thread remains unaffected.
+ */
+
+void
+Session::emit_route_signals ()
+{
+ // TODO use RAII to allow using these signals in other places
+ BatchUpdateStart(); /* EMIT SIGNAL */
+ boost::shared_ptr<RouteList> r = routes.reader ();
+ for (RouteList::const_iterator ci = r->begin(); ci != r->end(); ++ci) {
+ (*ci)->emit_pending_signals ();
+ }
+ BatchUpdateEnd(); /* EMIT SIGNAL */
+}
+
+void
+Session::emit_thread_start ()
+{
+ if (_rt_thread_active) {
+ return;
+ }
+ _rt_thread_active = true;
+
+ if (pthread_create (&_rt_emit_thread, NULL, emit_thread, this)) {
+ _rt_thread_active = false;
+ }
+}
+
+void
+Session::emit_thread_terminate ()
+{
+ if (!_rt_thread_active) {
+ return;
+ }
+ _rt_thread_active = false;
+
+ if (pthread_mutex_lock (&_rt_emit_mutex) == 0) {
+ pthread_cond_signal (&_rt_emit_cond);
+ pthread_mutex_unlock (&_rt_emit_mutex);
+ }
+
+ void *status;
+ pthread_join (_rt_emit_thread, &status);
+}
+
+void *
+Session::emit_thread (void *arg)
+{
+ Session *s = static_cast<Session *>(arg);
+ s->emit_thread_run ();
+ pthread_exit (0);
+ return 0;
+}
+
+void
+Session::emit_thread_run ()
+{
+ pthread_mutex_lock (&_rt_emit_mutex);
+ while (_rt_thread_active) {
+ emit_route_signals();
+ pthread_cond_wait (&_rt_emit_cond, &_rt_emit_mutex);
+ }
+ pthread_mutex_unlock (&_rt_emit_mutex);
+}
projects / ardour.git / blobdiff