2 Copyright (C) 2009 Paul Davis
4 This program is free software; you can redistribute it and/or modify it
5 under the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2 of the License, or (at your option)
9 This program is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License along
15 with this program; if not, write to the Free Software Foundation, Inc.,
16 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include "pbd/enumwriter.h"
23 #include "pbd/convert.h"
25 #include "ardour/midi_buffer.h"
27 #include "ardour/delivery.h"
28 #include "ardour/audio_buffer.h"
29 #include "ardour/amp.h"
30 #include "ardour/buffer_set.h"
31 #include "ardour/configuration.h"
32 #include "ardour/io.h"
33 #include "ardour/meter.h"
34 #include "ardour/mute_master.h"
35 #include "ardour/panner.h"
36 #include "ardour/port.h"
37 #include "ardour/session.h"
38 #include "ardour/audioengine.h"
44 using namespace ARDOUR;
46 PBD::Signal1<void, pframes_t> Delivery::CycleStart;
47 PBD::Signal0<int> Delivery::PannersLegal;
48 bool Delivery::panners_legal = false;
50 /* deliver to an existing IO object */
52 Delivery::Delivery (Session& s, boost::shared_ptr<IO> io, boost::shared_ptr<MuteMaster> mm, const string& name, Role r)
53 : IOProcessor(s, boost::shared_ptr<IO>(), (role_requires_output_ports (r) ? io : boost::shared_ptr<IO>()), name)
55 , _output_buffers (new BufferSet())
58 , _no_outs_cuz_we_no_monitor (false)
60 , no_panner_reset (false)
62 _panner = boost::shared_ptr<Panner>(new Panner (_name, _session));
63 _display_to_user = false;
66 _output->changed.connect_same_thread (*this, boost::bind (&Delivery::output_changed, this, _1, _2));
69 CycleStart.connect_same_thread (*this, boost::bind (&Delivery::cycle_start, this, _1));
72 /* deliver to a new IO object */
74 Delivery::Delivery (Session& s, boost::shared_ptr<MuteMaster> mm, const string& name, Role r)
75 : IOProcessor(s, false, (role_requires_output_ports (r) ? true : false), name)
77 , _output_buffers (new BufferSet())
80 , _no_outs_cuz_we_no_monitor (false)
82 , no_panner_reset (false)
84 _panner = boost::shared_ptr<Panner>(new Panner (_name, _session));
85 _display_to_user = false;
88 _output->changed.connect_same_thread (*this, boost::bind (&Delivery::output_changed, this, _1, _2));
91 CycleStart.connect_same_thread (*this, boost::bind (&Delivery::cycle_start, this, _1));
97 delete _output_buffers;
101 Delivery::display_name () const
105 return _("main outs");
118 Delivery::cycle_start (pframes_t /*nframes*/)
121 _no_outs_cuz_we_no_monitor = false;
125 Delivery::increment_output_offset (framecnt_t n)
131 Delivery::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
135 /* the out buffers will be set to point to the port output buffers
136 of our output object.
140 if (_output->n_ports() != ChanCount::ZERO) {
141 /* increase number of output ports if the processor chain requires it */
142 out = ChanCount::max (_output->n_ports(), in);
145 /* not configured yet - we will passthru */
150 fatal << "programming error: this should never be reached" << endmsg;
155 } else if (_role == Insert) {
157 /* the output buffers will be filled with data from the *input* ports
162 if (_input->n_ports() != ChanCount::ZERO) {
163 out = _input->n_ports();
166 /* not configured yet - we will passthru */
171 fatal << "programming error: this should never be reached" << endmsg;
176 fatal << "programming error: this should never be reached" << endmsg;
182 /** Caller must hold process lock */
184 Delivery::configure_io (ChanCount in, ChanCount out)
186 assert (!AudioEngine::instance()->process_lock().trylock());
188 /* check configuration by comparison with our I/O port configuration, if appropriate.
189 see ::can_support_io_configuration() for comments
195 if (_output->n_ports() != out) {
196 if (_output->n_ports() != ChanCount::ZERO) {
197 _output->ensure_io (out, false, this);
199 /* I/O not yet configured */
204 } else if (_role == Insert) {
207 if (_input->n_ports() != in) {
208 if (_input->n_ports() != ChanCount::ZERO) {
209 fatal << _name << " programming error: configure_io called with " << in << " and " << out << " with " << _input->n_ports() << " input ports" << endmsg;
212 /* I/O not yet configured */
219 if (!Processor::configure_io (in, out)) {
229 Delivery::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool result_required)
233 PortSet& ports (_output->ports());
236 if (_output->n_ports ().get (_output->default_type()) == 0) {
240 if (!_active && !_pending_active) {
241 _output->silence (nframes);
245 /* this setup is not just for our purposes, but for anything that comes after us in the
246 processing pathway that wants to use this->output_buffers() for some reason.
249 output_buffers().attach_buffers (ports, nframes, _output_offset);
251 // this Delivery processor is not a derived type, and thus we assume
252 // we really can modify the buffers passed in (it is almost certainly
253 // the main output stage of a Route). Contrast with Send::run()
254 // which cannot do this.
256 tgain = target_gain ();
258 if (tgain != _current_gain) {
259 /* target gain has changed */
261 Amp::apply_gain (bufs, nframes, _current_gain, tgain);
262 _current_gain = tgain;
264 } else if (tgain == 0.0) {
266 /* we were quiet last time, and we're still supposed to be quiet.
267 Silence the outputs, and make sure the buffers are quiet too,
270 _output->silence (nframes);
271 if (result_required) {
272 Amp::apply_simple_gain (bufs, nframes, 0.0);
276 } else if (tgain != 1.0) {
278 /* target gain has not changed, but is not unity */
279 Amp::apply_simple_gain (bufs, nframes, tgain);
282 if (_panner && _panner->npanners() && !_panner->bypassed()) {
284 // Use the panner to distribute audio to output port buffers
286 _panner->run (bufs, output_buffers(), start_frame, end_frame, nframes);
288 if (result_required) {
289 bufs.read_from (output_buffers (), nframes);
294 // Do a 1:1 copy of data to output ports
296 if (bufs.count().n_audio() > 0 && ports.count().n_audio () > 0) {
297 _output->copy_to_outputs (bufs, DataType::AUDIO, nframes, _output_offset);
300 if (bufs.count().n_midi() > 0 && ports.count().n_midi () > 0) {
301 _output->copy_to_outputs (bufs, DataType::MIDI, nframes, _output_offset);
308 _active = _pending_active;
312 Delivery::state (bool full_state)
314 XMLNode& node (IOProcessor::state (full_state));
317 node.add_property("type", "main-outs");
318 } else if (_role & Listen) {
319 node.add_property("type", "listen");
321 node.add_property("type", "delivery");
324 node.add_property("role", enum_2_string(_role));
325 node.add_child_nocopy (_panner->state (full_state));
331 Delivery::set_state (const XMLNode& node, int version)
333 const XMLProperty* prop;
335 if (IOProcessor::set_state (node, version)) {
339 if ((prop = node.property ("role")) != 0) {
340 _role = Role (string_2_enum (prop->value(), _role));
341 // std::cerr << this << ' ' << _name << " set role to " << enum_2_string (_role) << std::endl;
343 // std::cerr << this << ' ' << _name << " NO ROLE INFO\n";
346 XMLNode* pan_node = node.child (X_("Panner"));
349 _panner->set_state (*pan_node, version);
358 Delivery::reset_panner ()
361 if (!no_panner_reset) {
366 ntargets = _output->n_ports().n_audio();
368 ntargets = _configured_output.n_audio();
371 _panner->reset (ntargets, pans_required());
374 panner_legal_c.disconnect ();
375 PannersLegal.connect_same_thread (panner_legal_c, boost::bind (&Delivery::panners_became_legal, this));
380 Delivery::panners_became_legal ()
385 ntargets = _output->n_ports().n_audio();
387 ntargets = _configured_output.n_audio();
390 _panner->reset (ntargets, pans_required());
391 _panner->load (); // automation
392 panner_legal_c.disconnect ();
397 Delivery::defer_pan_reset ()
399 no_panner_reset = true;
403 Delivery::allow_pan_reset ()
405 no_panner_reset = false;
411 Delivery::disable_panners (void)
413 panners_legal = false;
418 Delivery::reset_panners ()
420 panners_legal = true;
421 return *PannersLegal ();
426 Delivery::start_pan_touch (uint32_t which, double when)
428 if (which < _panner->npanners()) {
429 _panner->pan_control(which)->start_touch(when);
434 Delivery::end_pan_touch (uint32_t which, bool mark, double when)
436 if (which < _panner->npanners()) {
437 _panner->pan_control(which)->stop_touch(mark, when);
444 Delivery::flush_buffers (framecnt_t nframes, framepos_t time)
446 /* io_lock, not taken: function must be called from Session::process() calltree */
448 PortSet& ports (_output->ports());
450 for (PortSet::iterator i = ports.begin(); i != ports.end(); ++i) {
451 (*i).flush_buffers (nframes, time, _output_offset);
456 Delivery::transport_stopped (framepos_t now)
458 Processor::transport_stopped (now);
460 _panner->transport_stopped (now);
463 PortSet& ports (_output->ports());
465 for (PortSet::iterator i = ports.begin(); i != ports.end(); ++i) {
466 (*i).transport_stopped ();
472 Delivery::target_gain ()
474 /* if we've been requested to deactivate, our target gain is zero */
476 if (!_pending_active) {
480 /* if we've been told not to output because its a monitoring situation and
481 we're not monitoring, then be quiet.
484 if (_no_outs_cuz_we_no_monitor) {
488 MuteMaster::MutePoint mp = MuteMaster::Main; // stupid gcc uninit warning
492 mp = MuteMaster::Main;
495 mp = MuteMaster::Listen;
501 mp = MuteMaster::PreFader;
503 mp = MuteMaster::PostFader;
508 gain_t desired_gain = _mute_master->mute_gain_at (mp);
510 if (_role == Listen && _session.monitor_out() && !_session.listening()) {
512 /* nobody is soloed, and this delivery is a listen-send to the
513 control/monitor/listen bus, we should be silent since
514 it gets its signal from the master out.
525 Delivery::no_outs_cuz_we_no_monitor (bool yn)
527 _no_outs_cuz_we_no_monitor = yn;
531 Delivery::set_name (const std::string& name)
533 bool ret = IOProcessor::set_name (name);
536 ret = _panner->set_name (name);
543 Delivery::output_changed (IOChange change, void* /*src*/)
545 if (change.type & IOChange::ConfigurationChanged) {