#include "ardour/boost_debug.h"
#include "ardour/buffer_set.h"
#include "ardour/debug.h"
+#include "ardour/delayline.h"
#include "ardour/gain_control.h"
#include "ardour/io.h"
#include "ardour/meter.h"
using namespace PBD;
using namespace std;
+PBD::Signal0<void> Send::ChangedLatency;
+
string
Send::name_and_id_new_send (Session& s, Role r, uint32_t& bitslot, bool ignore_bitslot)
{
_amp.reset (new Amp (_session, _("Fader"), _gain_control, true));
_meter.reset (new PeakMeter (_session, name()));
- _delayline.reset (new DelayLine (_session, name()));
+ _send_delay.reset (new DelayLine (_session, "Send-" + name()));
+ _thru_delay.reset (new DelayLine (_session, "Thru-" + name()));
if (panner_shell()) {
panner_shell()->Changed.connect_same_thread (*this, boost::bind (&Send::panshell_changed, this));
Send::~Send ()
{
- _session.unmark_send_id (_bitslot);
+ _session.unmark_send_id (_bitslot);
}
void
Processor::deactivate ();
}
+samplecnt_t
+Send::signal_latency () const
+{
+ if (!_pending_active) {
+ return 0;
+ }
+ if (_user_latency) {
+ return _user_latency;
+ }
+ if (_delay_out > _delay_in) {
+ return _delay_out - _delay_in;
+ }
+ return 0;
+}
+
+void
+Send::update_delaylines ()
+{
+ if (_role == Listen) {
+ /* Don't align monitor-listen (just yet).
+ * They're present on each route, may change positions
+ * and could potentially signficiantly increase worst-case
+ * Latency: In PFL mode all tracks/busses would additionally be
+ * aligned at PFL position.
+ *
+ * We should only align active monitor-sends when at least one is active.
+ */
+ return;
+ }
+
+ bool changed;
+ if (_delay_out > _delay_in) {
+ changed = _thru_delay->set_delay(_delay_out - _delay_in);
+ _send_delay->set_delay(0);
+ } else {
+ changed = _thru_delay->set_delay(0);
+ _send_delay->set_delay(_delay_in - _delay_out);
+ }
+
+ if (changed) {
+ // TODO -- ideally postpone for effective no-op changes
+ // (in case both _delay_out and _delay_in are changed by the
+ // same amount in a single latency-update cycle).
+ ChangedLatency (); /* EMIT SIGNAL */
+ }
+}
+
void
-Send::set_delay_in(framecnt_t delay)
+Send::set_delay_in (samplecnt_t delay)
{
- if (!_delayline) return;
if (_delay_in == delay) {
return;
}
_delay_in = delay;
DEBUG_TRACE (DEBUG::LatencyCompensation,
- string_compose ("Send::set_delay_in(%1) + %2 = %3\n",
- delay, _delay_out, _delay_out + _delay_in));
- _delayline.get()->set_delay(_delay_out + _delay_in);
+ string_compose ("Send::set_delay_in %1: (%2) - %3 = %4\n",
+ name (), _delay_in, _delay_out, _delay_in - _delay_out));
+
+ update_delaylines ();
}
void
-Send::set_delay_out(framecnt_t delay)
+Send::set_delay_out (samplecnt_t delay)
{
- if (!_delayline) return;
if (_delay_out == delay) {
return;
}
_delay_out = delay;
DEBUG_TRACE (DEBUG::LatencyCompensation,
- string_compose ("Send::set_delay_out(%1) + %2 = %3\n",
- delay, _delay_in, _delay_out + _delay_in));
- _delayline.get()->set_delay(_delay_out + _delay_in);
+ string_compose ("Send::set_delay_out %1: %2 - (%3) = %4\n",
+ name (), _delay_in, _delay_out, _delay_in - _delay_out));
+
+ update_delaylines ();
}
void
-Send::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, double speed, pframes_t nframes, bool)
+Send::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_sample, double speed, pframes_t nframes, bool)
{
if (_output->n_ports() == ChanCount::ZERO) {
_meter->reset ();
/* gain control */
_amp->set_gain_automation_buffer (_session.send_gain_automation_buffer ());
- _amp->setup_gain_automation (start_frame, end_frame, nframes);
- _amp->run (sendbufs, start_frame, end_frame, speed, nframes, true);
+ _amp->setup_gain_automation (start_sample, end_sample, nframes);
+ _amp->run (sendbufs, start_sample, end_sample, speed, nframes, true);
- _delayline->run (sendbufs, start_frame, end_frame, speed, nframes, true);
+ _send_delay->run (sendbufs, start_sample, end_sample, speed, nframes, true);
/* deliver to outputs */
- Delivery::run (sendbufs, start_frame, end_frame, speed, nframes, true);
+ Delivery::run (sendbufs, start_sample, end_sample, speed, nframes, true);
/* consider metering */
if (_amp->gain_control()->get_value() == 0) {
_meter->reset();
} else {
- _meter->run (*_output_buffers, start_frame, end_frame, speed, nframes, true);
+ _meter->run (*_output_buffers, start_sample, end_sample, speed, nframes, true);
}
}
+ _thru_delay->run (bufs, start_sample, end_sample, speed, nframes, true);
+
/* _active was set to _pending_active by Delivery::run() */
}
}
}
+ _send_delay->set_name ("Send-" + name());
+ _thru_delay->set_name ("Thru-" + name());
+
return 0;
}
return false;
}
- if (_delayline && !_delayline->configure_io(in, out)) {
- cerr << "send delayline config failed\n";
+ if (!_thru_delay->configure_io (in, out)) {
+ return false;
+ }
+
+ if (!_send_delay->configure_io (ChanCount (DataType::AUDIO, pan_outs()), ChanCount (DataType::AUDIO, pan_outs()))) {
return false;
}
/* we ignore Deliver::_display_to_user */
if (_role == Listen) {
- /* don't make the monitor/control/listen send visible */
+ /* don't make the monitor/control/listen send visible */
return false;
}
return true;
}
-string
-Send::value_as_string (boost::shared_ptr<const AutomationControl> ac) const
-{
- return _amp->value_as_string (ac);
-}
-
void
Send::snd_output_changed (IOChange change, void* /*src*/)
{