2 Copyright (C) 2000 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #include "pbd/xml++.h"
25 #include "ardour/amp.h"
26 #include "ardour/boost_debug.h"
27 #include "ardour/buffer_set.h"
28 #include "ardour/debug.h"
29 #include "ardour/delayline.h"
30 #include "ardour/gain_control.h"
31 #include "ardour/io.h"
32 #include "ardour/meter.h"
33 #include "ardour/panner_shell.h"
34 #include "ardour/send.h"
35 #include "ardour/session.h"
40 class AutomationControl;
45 using namespace ARDOUR;
49 PBD::Signal0<void> Send::ChangedLatency;
52 Send::name_and_id_new_send (Session& s, Role r, uint32_t& bitslot, bool ignore_bitslot)
55 /* this happens during initial construction of sends from XML,
56 before they get ::set_state() called. lets not worry about
65 return string_compose (_("aux %1"), (bitslot = s.next_aux_send_id ()) + 1);
66 case Delivery::Listen:
67 return _("listen"); // no ports, no need for numbering
69 return string_compose (_("send %1"), (bitslot = s.next_send_id ()) + 1);
70 case Delivery::Foldback:
71 return string_compose (_("foldback %1"), (bitslot = s.next_aux_send_id ()) + 1);
73 fatal << string_compose (_("programming error: send created using role %1"), enum_2_string (r)) << endmsg;
74 abort(); /*NOTREACHED*/
80 Send::Send (Session& s, boost::shared_ptr<Pannable> p, boost::shared_ptr<MuteMaster> mm, Role r, bool ignore_bitslot)
81 : Delivery (s, p, mm, name_and_id_new_send (s, r, _bitslot, ignore_bitslot), r)
85 , _remove_on_disconnect (false)
87 if (_role == Listen) {
88 /* we don't need to do this but it keeps things looking clean
89 in a debugger. _bitslot is not used by listen sends.
94 //boost_debug_shared_ptr_mark_interesting (this, "send");
96 boost::shared_ptr<AutomationList> gl (new AutomationList (Evoral::Parameter (GainAutomation)));
97 _gain_control = boost::shared_ptr<GainControl> (new GainControl (_session, Evoral::Parameter(GainAutomation), gl));
98 add_control (_gain_control);
100 _amp.reset (new Amp (_session, _("Fader"), _gain_control, true));
101 _meter.reset (new PeakMeter (_session, name()));
103 _send_delay.reset (new DelayLine (_session, "Send-" + name()));
104 _thru_delay.reset (new DelayLine (_session, "Thru-" + name()));
106 if (panner_shell()) {
107 panner_shell()->Changed.connect_same_thread (*this, boost::bind (&Send::panshell_changed, this));
110 _output->changed.connect_same_thread (*this, boost::bind (&Send::snd_output_changed, this, _1, _2));
116 _session.unmark_send_id (_bitslot);
125 Processor::activate ();
132 _meter->deactivate ();
135 Processor::deactivate ();
139 Send::signal_latency () const
141 if (!_pending_active) {
145 return _user_latency;
147 if (_delay_out > _delay_in) {
148 return _delay_out - _delay_in;
154 Send::update_delaylines ()
156 if (_role == Listen) {
157 /* Don't align monitor-listen (just yet).
158 * They're present on each route, may change positions
159 * and could potentially signficiantly increase worst-case
160 * Latency: In PFL mode all tracks/busses would additionally be
161 * aligned at PFL position.
163 * We should only align active monitor-sends when at least one is active.
169 if (_delay_out > _delay_in) {
170 changed = _thru_delay->set_delay(_delay_out - _delay_in);
171 _send_delay->set_delay(0);
173 changed = _thru_delay->set_delay(0);
174 _send_delay->set_delay(_delay_in - _delay_out);
178 // TODO -- ideally postpone for effective no-op changes
179 // (in case both _delay_out and _delay_in are changed by the
180 // same amount in a single latency-update cycle).
181 ChangedLatency (); /* EMIT SIGNAL */
186 Send::set_delay_in (samplecnt_t delay)
188 if (_delay_in == delay) {
193 DEBUG_TRACE (DEBUG::LatencyCompensation,
194 string_compose ("Send::set_delay_in %1: (%2) - %3 = %4\n",
195 name (), _delay_in, _delay_out, _delay_in - _delay_out));
197 update_delaylines ();
201 Send::set_delay_out (samplecnt_t delay)
203 if (_delay_out == delay) {
207 DEBUG_TRACE (DEBUG::LatencyCompensation,
208 string_compose ("Send::set_delay_out %1: %2 - (%3) = %4\n",
209 name (), _delay_in, _delay_out, _delay_in - _delay_out));
211 update_delaylines ();
215 Send::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_sample, double speed, pframes_t nframes, bool)
217 if (_output->n_ports() == ChanCount::ZERO) {
219 _active = _pending_active;
223 if (!_active && !_pending_active) {
225 _output->silence (nframes);
226 _active = _pending_active;
230 // we have to copy the input, because deliver_output() may alter the buffers
231 // in-place, which a send must never do.
233 BufferSet& sendbufs = _session.get_mix_buffers (bufs.count());
234 sendbufs.read_from (bufs, nframes);
235 assert(sendbufs.count() == bufs.count());
239 _amp->set_gain_automation_buffer (_session.send_gain_automation_buffer ());
240 _amp->setup_gain_automation (start_sample, end_sample, nframes);
241 _amp->run (sendbufs, start_sample, end_sample, speed, nframes, true);
243 _send_delay->run (sendbufs, start_sample, end_sample, speed, nframes, true);
245 /* deliver to outputs */
247 Delivery::run (sendbufs, start_sample, end_sample, speed, nframes, true);
249 /* consider metering */
252 if (_amp->gain_control()->get_value() == 0) {
255 _meter->run (*_output_buffers, start_sample, end_sample, speed, nframes, true);
259 _thru_delay->run (bufs, start_sample, end_sample, speed, nframes, true);
261 /* _active was set to _pending_active by Delivery::run() */
267 XMLNode& node = Delivery::state ();
269 node.set_property ("type", "send");
271 if (_role != Listen) {
272 node.set_property ("bitslot", _bitslot);
275 node.set_property ("selfdestruct", _remove_on_disconnect);
277 node.add_child_nocopy (_amp->get_state ());
283 Send::set_state (const XMLNode& node, int version)
285 if (version < 3000) {
286 return set_state_2X (node, version);
289 XMLProperty const * prop;
291 Delivery::set_state (node, version);
293 if (node.property ("ignore-bitslot") == 0) {
295 /* don't try to reset bitslot if there is a node for it already: this can cause
296 issues with the session's accounting of send ID's
299 if ((prop = node.property ("bitslot")) == 0) {
300 if (_role == Delivery::Aux || _role == Delivery::Foldback) {
301 _bitslot = _session.next_aux_send_id ();
302 } else if (_role == Delivery::Send) {
303 _bitslot = _session.next_send_id ();
305 // bitslot doesn't matter but make it zero anyway
309 if (_role == Delivery::Aux || _role == Delivery::Foldback) {
310 _session.unmark_aux_send_id (_bitslot);
311 _bitslot = string_to<uint32_t>(prop->value());
312 _session.mark_aux_send_id (_bitslot);
313 } else if (_role == Delivery::Send) {
314 _session.unmark_send_id (_bitslot);
315 _bitslot = string_to<uint32_t>(prop->value());
316 _session.mark_send_id (_bitslot);
318 // bitslot doesn't matter but make it zero anyway
324 node.get_property (X_("selfdestruct"), _remove_on_disconnect);
326 XMLNodeList nlist = node.children();
327 for (XMLNodeIterator i = nlist.begin(); i != nlist.end(); ++i) {
328 if ((*i)->name() == X_("Processor")) {
329 _amp->set_state (**i, version);
333 _send_delay->set_name ("Send-" + name());
334 _thru_delay->set_name ("Thru-" + name());
340 Send::set_state_2X (const XMLNode& node, int /* version */)
342 /* use the IO's name for the name of the send */
343 XMLNodeList const & children = node.children ();
345 XMLNodeList::const_iterator i = children.begin();
346 while (i != children.end() && (*i)->name() != X_("Redirect")) {
350 if (i == children.end()) {
354 XMLNodeList const & grand_children = (*i)->children ();
355 XMLNodeList::const_iterator j = grand_children.begin ();
356 while (j != grand_children.end() && (*j)->name() != X_("IO")) {
360 if (j == grand_children.end()) {
364 XMLProperty const * prop = (*j)->property (X_("name"));
369 set_name (prop->value ());
375 Send::can_support_io_configuration (const ChanCount& in, ChanCount& out)
377 /* sends have no impact at all on the channel configuration of the
378 streams passing through the route. so, out == in.
385 /** Caller must hold process lock */
387 Send::configure_io (ChanCount in, ChanCount out)
389 if (!_amp->configure_io (in, out)) {
393 if (!Processor::configure_io (in, out)) {
397 if (!_meter->configure_io (ChanCount (DataType::AUDIO, pan_outs()), ChanCount (DataType::AUDIO, pan_outs()))) {
401 if (!_thru_delay->configure_io (in, out)) {
405 if (!_send_delay->configure_io (ChanCount (DataType::AUDIO, pan_outs()), ChanCount (DataType::AUDIO, pan_outs()))) {
415 Send::panshell_changed ()
417 _meter->configure_io (ChanCount (DataType::AUDIO, pan_outs()), ChanCount (DataType::AUDIO, pan_outs()));
421 Send::set_name (const string& new_name)
425 if (_role == Delivery::Send) {
428 /* rip any existing numeric part of the name, and append the bitslot
431 string::size_type last_letter = new_name.find_last_not_of ("0123456789");
433 if (last_letter != string::npos) {
434 unique_name = new_name.substr (0, last_letter + 1);
436 unique_name = new_name;
439 snprintf (buf, sizeof (buf), "%u", (_bitslot + 1));
443 unique_name = new_name;
446 return Delivery::set_name (unique_name);
450 Send::display_to_user () const
452 /* we ignore Deliver::_display_to_user */
454 if (_role == Listen || _role == Foldback) {
455 /* don't make the monitor/control/listen send visible */
463 Send::snd_output_changed (IOChange change, void* /*src*/)
465 if (change.type & IOChange::ConnectionsChanged) {
466 if (!_output->connected() && _remove_on_disconnect) {
467 _remove_on_disconnect = false;
468 SelfDestruct (); /* EMIT SIGNAL */