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/debug.h"
28 #include "ardour/delivery.h"
29 #include "ardour/audio_buffer.h"
30 #include "ardour/audio_port.h"
31 #include "ardour/amp.h"
32 #include "ardour/buffer_set.h"
33 #include "ardour/configuration.h"
34 #include "ardour/io.h"
35 #include "ardour/meter.h"
36 #include "ardour/mute_master.h"
37 #include "ardour/panner.h"
38 #include "ardour/panner_shell.h"
39 #include "ardour/pannable.h"
40 #include "ardour/port.h"
41 #include "ardour/session.h"
42 #include "ardour/audioengine.h"
48 using namespace ARDOUR;
50 PBD::Signal1<void, pframes_t> Delivery::CycleStart;
51 PBD::Signal0<int> Delivery::PannersLegal;
52 bool Delivery::panners_legal = false;
54 /* deliver to an existing IO object */
56 Delivery::Delivery (Session& s, boost::shared_ptr<IO> io, boost::shared_ptr<Pannable> pannable,
57 boost::shared_ptr<MuteMaster> mm, const string& name, Role r)
58 : IOProcessor(s, boost::shared_ptr<IO>(), (role_requires_output_ports (r) ? io : boost::shared_ptr<IO>()), name)
60 , _output_buffers (new BufferSet())
62 , _no_outs_cuz_we_no_monitor (false)
64 , no_panner_reset (false)
67 _panshell = boost::shared_ptr<PannerShell>(new PannerShell (_name, _session, pannable));
70 _display_to_user = false;
73 _output->changed.connect_same_thread (*this, boost::bind (&Delivery::output_changed, this, _1, _2));
76 CycleStart.connect_same_thread (*this, boost::bind (&Delivery::cycle_start, this, _1));
79 /* deliver to a new IO object */
81 Delivery::Delivery (Session& s, boost::shared_ptr<Pannable> pannable, boost::shared_ptr<MuteMaster> mm, const string& name, Role r)
82 : IOProcessor(s, false, (role_requires_output_ports (r) ? true : false), name)
84 , _output_buffers (new BufferSet())
86 , _no_outs_cuz_we_no_monitor (false)
88 , no_panner_reset (false)
91 _panshell = boost::shared_ptr<PannerShell>(new PannerShell (_name, _session, pannable));
94 _display_to_user = false;
97 _output->changed.connect_same_thread (*this, boost::bind (&Delivery::output_changed, this, _1, _2));
100 CycleStart.connect_same_thread (*this, boost::bind (&Delivery::cycle_start, this, _1));
104 Delivery::~Delivery()
106 DEBUG_TRACE (DEBUG::Destruction, string_compose ("delivery %1 destructor\n", _name));
107 delete _output_buffers;
111 Delivery::display_name () const
115 return _("main outs");
128 Delivery::cycle_start (pframes_t /*nframes*/)
130 _no_outs_cuz_we_no_monitor = false;
134 Delivery::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
138 /* the out buffers will be set to point to the port output buffers
139 of our output object.
143 if (_output->n_ports() != ChanCount::ZERO) {
144 /* increase number of output ports if the processor chain requires it */
145 out = ChanCount::max (_output->n_ports(), in);
148 /* not configured yet - we will passthru */
153 fatal << "programming error: this should never be reached" << endmsg;
158 } else if (_role == Insert) {
160 /* the output buffers will be filled with data from the *input* ports
165 if (_input->n_ports() != ChanCount::ZERO) {
166 out = _input->n_ports();
169 /* not configured yet - we will passthru */
174 fatal << "programming error: this should never be reached" << endmsg;
179 fatal << "programming error: this should never be reached" << endmsg;
185 /** Caller must hold process lock */
187 Delivery::configure_io (ChanCount in, ChanCount out)
189 assert (!AudioEngine::instance()->process_lock().trylock());
191 /* check configuration by comparison with our I/O port configuration, if appropriate.
192 see ::can_support_io_configuration() for comments
198 if (_output->n_ports() != out) {
199 if (_output->n_ports() != ChanCount::ZERO) {
200 _output->ensure_io (out, false, this);
202 /* I/O not yet configured */
207 } else if (_role == Insert) {
210 if (_input->n_ports() != in) {
211 if (_input->n_ports() != ChanCount::ZERO) {
212 fatal << _name << " programming error: configure_io called with " << in << " and " << out << " with " << _input->n_ports() << " input ports" << endmsg;
215 /* I/O not yet configured */
222 if (!Processor::configure_io (in, out)) {
232 Delivery::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool result_required)
236 PortSet& ports (_output->ports());
239 if (_output->n_ports ().get (_output->default_type()) == 0) {
243 if (!_active && !_pending_active) {
244 _output->silence (nframes);
248 /* this setup is not just for our purposes, but for anything that comes after us in the
249 processing pathway that wants to use this->output_buffers() for some reason.
252 output_buffers().get_jack_port_addresses (ports, nframes);
254 // this Delivery processor is not a derived type, and thus we assume
255 // we really can modify the buffers passed in (it is almost certainly
256 // the main output stage of a Route). Contrast with Send::run()
257 // which cannot do this.
259 tgain = target_gain ();
261 if (tgain != _current_gain) {
262 /* target gain has changed */
264 Amp::apply_gain (bufs, nframes, _current_gain, tgain);
265 _current_gain = tgain;
267 } else if (tgain == 0.0) {
269 /* we were quiet last time, and we're still supposed to be quiet.
270 Silence the outputs, and make sure the buffers are quiet too,
273 _output->silence (nframes);
274 if (result_required) {
275 bufs.set_count (output_buffers().count ());
276 Amp::apply_simple_gain (bufs, nframes, 0.0);
280 } else if (tgain != 1.0) {
282 /* target gain has not changed, but is not unity */
283 Amp::apply_simple_gain (bufs, nframes, tgain);
286 if (_panshell && !_panshell->bypassed() && _panshell->panner()) {
288 // Use the panner to distribute audio to output port buffers
290 _panshell->run (bufs, output_buffers(), start_frame, end_frame, nframes);
292 // MIDI data will not have been delivered by the panner
294 if (bufs.count().n_midi() > 0 && ports.count().n_midi () > 0) {
295 _output->copy_to_outputs (bufs, DataType::MIDI, nframes, 0);
300 // Do a 1:1 copy of data to output ports
302 if (bufs.count().n_audio() > 0 && ports.count().n_audio () > 0) {
303 _output->copy_to_outputs (bufs, DataType::AUDIO, nframes, 0);
306 if (bufs.count().n_midi() > 0 && ports.count().n_midi () > 0) {
307 _output->copy_to_outputs (bufs, DataType::MIDI, nframes, 0);
311 if (result_required) {
312 bufs.read_from (output_buffers (), nframes);
316 _active = _pending_active;
320 Delivery::state (bool full_state)
322 XMLNode& node (IOProcessor::state (full_state));
325 node.add_property("type", "main-outs");
326 } else if (_role & Listen) {
327 node.add_property("type", "listen");
329 node.add_property("type", "delivery");
332 node.add_property("role", enum_2_string(_role));
335 node.add_child_nocopy (_panshell->get_state ());
342 Delivery::set_state (const XMLNode& node, int version)
344 const XMLProperty* prop;
346 if (IOProcessor::set_state (node, version)) {
350 if ((prop = node.property ("role")) != 0) {
351 _role = Role (string_2_enum (prop->value(), _role));
352 // std::cerr << this << ' ' << _name << " set role to " << enum_2_string (_role) << std::endl;
354 // std::cerr << this << ' ' << _name << " NO ROLE INFO\n";
357 XMLNode* pan_node = node.child (X_("PannerShell"));
359 if (pan_node && _panshell) {
360 _panshell->set_state (*pan_node, version);
371 /* caller must hold process lock */
377 Delivery::pan_outs () const
380 return _output->n_ports().n_audio();
383 return _configured_output.n_audio();
387 Delivery::reset_panner ()
390 if (!no_panner_reset) {
393 _panshell->configure_io (ChanCount (DataType::AUDIO, pans_required()), ChanCount (DataType::AUDIO, pan_outs()));
396 _panshell->pannable()->set_panner (_panshell->panner());
402 panner_legal_c.disconnect ();
403 PannersLegal.connect_same_thread (panner_legal_c, boost::bind (&Delivery::panners_became_legal, this));
408 Delivery::panners_became_legal ()
411 _panshell->configure_io (ChanCount (DataType::AUDIO, pans_required()), ChanCount (DataType::AUDIO, pan_outs()));
414 _panshell->pannable()->set_panner (_panshell->panner());
418 panner_legal_c.disconnect ();
423 Delivery::defer_pan_reset ()
425 no_panner_reset = true;
429 Delivery::allow_pan_reset ()
431 no_panner_reset = false;
437 Delivery::disable_panners (void)
439 panners_legal = false;
444 Delivery::reset_panners ()
446 panners_legal = true;
447 return *PannersLegal ();
451 Delivery::flush_buffers (framecnt_t nframes, framepos_t time)
453 /* io_lock, not taken: function must be called from Session::process() calltree */
459 PortSet& ports (_output->ports());
461 for (PortSet::iterator i = ports.begin(); i != ports.end(); ++i) {
462 i->flush_buffers (nframes, time);
467 Delivery::transport_stopped (framepos_t now)
469 Processor::transport_stopped (now);
472 _panshell->pannable()->transport_stopped (now);
476 PortSet& ports (_output->ports());
478 for (PortSet::iterator i = ports.begin(); i != ports.end(); ++i) {
479 i->transport_stopped ();
485 Delivery::realtime_locate ()
488 PortSet& ports (_output->ports());
490 for (PortSet::iterator i = ports.begin(); i != ports.end(); ++i) {
491 i->realtime_locate ();
497 Delivery::target_gain ()
499 /* if we've been requested to deactivate, our target gain is zero */
501 if (!_pending_active) {
505 /* if we've been told not to output because its a monitoring situation and
506 we're not monitoring, then be quiet.
509 if (_no_outs_cuz_we_no_monitor) {
513 MuteMaster::MutePoint mp = MuteMaster::Main; // stupid gcc uninit warning
517 mp = MuteMaster::Main;
520 mp = MuteMaster::Listen;
526 mp = MuteMaster::PreFader;
528 mp = MuteMaster::PostFader;
533 gain_t desired_gain = _mute_master->mute_gain_at (mp);
535 if (_role == Listen && _session.monitor_out() && !_session.listening()) {
537 /* nobody is soloed, and this delivery is a listen-send to the
538 control/monitor/listen bus, we should be silent since
539 it gets its signal from the master out.
550 Delivery::no_outs_cuz_we_no_monitor (bool yn)
552 _no_outs_cuz_we_no_monitor = yn;
556 Delivery::set_name (const std::string& name)
558 bool ret = IOProcessor::set_name (name);
561 ret = _panshell->set_name (name);
567 bool ignore_output_change = false;
570 Delivery::output_changed (IOChange change, void* /*src*/)
572 if (change.type & IOChange::ConfigurationChanged) {
574 _output_buffers->attach_buffers (_output->ports ());
578 boost::shared_ptr<Panner>
579 Delivery::panner () const
582 return _panshell->panner();
584 return boost::shared_ptr<Panner>();