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/panner_shell.h"
37 #include "ardour/pannable.h"
38 #include "ardour/port.h"
39 #include "ardour/session.h"
40 #include "ardour/audioengine.h"
46 using namespace ARDOUR;
48 PBD::Signal1<void, pframes_t> Delivery::CycleStart;
49 PBD::Signal0<int> Delivery::PannersLegal;
50 bool Delivery::panners_legal = false;
52 /* deliver to an existing IO object */
54 Delivery::Delivery (Session& s, boost::shared_ptr<IO> io, boost::shared_ptr<Pannable> pannable,
55 boost::shared_ptr<MuteMaster> mm, const string& name, Role r)
56 : IOProcessor(s, boost::shared_ptr<IO>(), (role_requires_output_ports (r) ? io : boost::shared_ptr<IO>()), name)
58 , _output_buffers (new BufferSet())
61 , _no_outs_cuz_we_no_monitor (false)
63 , no_panner_reset (false)
65 _panshell = boost::shared_ptr<PannerShell>(new PannerShell (_name, _session, pannable));
66 _display_to_user = false;
69 _output->changed.connect_same_thread (*this, boost::bind (&Delivery::output_changed, this, _1, _2));
72 CycleStart.connect_same_thread (*this, boost::bind (&Delivery::cycle_start, this, _1));
75 /* deliver to a new IO object */
77 Delivery::Delivery (Session& s, boost::shared_ptr<Pannable> pannable, boost::shared_ptr<MuteMaster> mm, const string& name, Role r)
78 : IOProcessor(s, false, (role_requires_output_ports (r) ? true : false), name)
80 , _output_buffers (new BufferSet())
83 , _no_outs_cuz_we_no_monitor (false)
85 , no_panner_reset (false)
87 _panshell = boost::shared_ptr<PannerShell>(new PannerShell (_name, _session, pannable));
88 _display_to_user = false;
91 _output->changed.connect_same_thread (*this, boost::bind (&Delivery::output_changed, this, _1, _2));
94 CycleStart.connect_same_thread (*this, boost::bind (&Delivery::cycle_start, this, _1));
100 delete _output_buffers;
104 Delivery::display_name () const
108 return _("main outs");
121 Delivery::cycle_start (pframes_t /*nframes*/)
124 _no_outs_cuz_we_no_monitor = false;
128 Delivery::increment_output_offset (framecnt_t n)
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)
234 boost::shared_ptr<Panner> panner;
238 PortSet& ports (_output->ports());
241 if (_output->n_ports ().get (_output->default_type()) == 0) {
245 if (!_active && !_pending_active) {
246 _output->silence (nframes);
250 /* this setup is not just for our purposes, but for anything that comes after us in the
251 processing pathway that wants to use this->output_buffers() for some reason.
254 output_buffers().get_jack_port_addresses (ports, nframes, _output_offset);
256 // this Delivery processor is not a derived type, and thus we assume
257 // we really can modify the buffers passed in (it is almost certainly
258 // the main output stage of a Route). Contrast with Send::run()
259 // which cannot do this.
261 tgain = target_gain ();
263 if (tgain != _current_gain) {
264 /* target gain has changed */
266 Amp::apply_gain (bufs, nframes, _current_gain, tgain);
267 _current_gain = tgain;
269 } else if (tgain == 0.0) {
271 /* we were quiet last time, and we're still supposed to be quiet.
272 Silence the outputs, and make sure the buffers are quiet too,
275 _output->silence (nframes);
276 if (result_required) {
277 Amp::apply_simple_gain (bufs, nframes, 0.0);
281 } else if (tgain != 1.0) {
283 /* target gain has not changed, but is not unity */
284 Amp::apply_simple_gain (bufs, nframes, tgain);
287 panner = _panshell->panner();
289 if (panner && !panner->bypassed()) {
291 // Use the panner to distribute audio to output port buffers
293 _panshell->run (bufs, output_buffers(), start_frame, end_frame, nframes);
295 if (result_required) {
296 bufs.read_from (output_buffers (), nframes);
301 // Do a 1:1 copy of data to output ports
303 if (bufs.count().n_audio() > 0 && ports.count().n_audio () > 0) {
304 _output->copy_to_outputs (bufs, DataType::AUDIO, nframes, _output_offset);
307 if (bufs.count().n_midi() > 0 && ports.count().n_midi () > 0) {
308 _output->copy_to_outputs (bufs, DataType::MIDI, nframes, _output_offset);
315 _active = _pending_active;
319 Delivery::state (bool full_state)
321 XMLNode& node (IOProcessor::state (full_state));
324 node.add_property("type", "main-outs");
325 } else if (_role & Listen) {
326 node.add_property("type", "listen");
328 node.add_property("type", "delivery");
331 node.add_property("role", enum_2_string(_role));
332 node.add_child_nocopy (_panshell->state (full_state));
338 Delivery::set_state (const XMLNode& node, int version)
340 const XMLProperty* prop;
342 if (IOProcessor::set_state (node, version)) {
346 if ((prop = node.property ("role")) != 0) {
347 _role = Role (string_2_enum (prop->value(), _role));
348 // std::cerr << this << ' ' << _name << " set role to " << enum_2_string (_role) << std::endl;
350 // std::cerr << this << ' ' << _name << " NO ROLE INFO\n";
353 XMLNode* pan_node = node.child (X_("Panner"));
356 _panshell->set_state (*pan_node, version);
365 Delivery::reset_panner ()
367 if (_role == Listen) {
368 /* monitor out gets no panner */
373 if (!no_panner_reset) {
378 ntargets = _output->n_ports().n_audio();
380 ntargets = _configured_output.n_audio();
383 _panshell->configure_io (ChanCount (DataType::AUDIO, pans_required()), ChanCount (DataType::AUDIO, ntargets));
386 panner_legal_c.disconnect ();
387 PannersLegal.connect_same_thread (panner_legal_c, boost::bind (&Delivery::panners_became_legal, this));
392 Delivery::panners_became_legal ()
397 ntargets = _output->n_ports().n_audio();
399 ntargets = _configured_output.n_audio();
402 _panshell->configure_io (ChanCount (DataType::AUDIO, pans_required()), ChanCount (DataType::AUDIO, ntargets));
403 panner_legal_c.disconnect ();
408 Delivery::defer_pan_reset ()
410 no_panner_reset = true;
414 Delivery::allow_pan_reset ()
416 no_panner_reset = false;
422 Delivery::disable_panners (void)
424 panners_legal = false;
429 Delivery::reset_panners ()
431 panners_legal = true;
432 return *PannersLegal ();
436 Delivery::flush_buffers (framecnt_t nframes, framepos_t time)
438 /* io_lock, not taken: function must be called from Session::process() calltree */
440 PortSet& ports (_output->ports());
442 for (PortSet::iterator i = ports.begin(); i != ports.end(); ++i) {
443 (*i).flush_buffers (nframes, time, _output_offset);
448 Delivery::transport_stopped (framepos_t now)
450 Processor::transport_stopped (now);
451 _panshell->pannable()->transport_stopped (now);
454 PortSet& ports (_output->ports());
456 for (PortSet::iterator i = ports.begin(); i != ports.end(); ++i) {
457 (*i).transport_stopped ();
463 Delivery::target_gain ()
465 /* if we've been requested to deactivate, our target gain is zero */
467 if (!_pending_active) {
471 /* if we've been told not to output because its a monitoring situation and
472 we're not monitoring, then be quiet.
475 if (_no_outs_cuz_we_no_monitor) {
479 MuteMaster::MutePoint mp = MuteMaster::Main; // stupid gcc uninit warning
483 mp = MuteMaster::Main;
486 mp = MuteMaster::Listen;
492 mp = MuteMaster::PreFader;
494 mp = MuteMaster::PostFader;
499 gain_t desired_gain = _mute_master->mute_gain_at (mp);
501 if (_role == Listen && _session.monitor_out() && !_session.listening()) {
503 /* nobody is soloed, and this delivery is a listen-send to the
504 control/monitor/listen bus, we should be silent since
505 it gets its signal from the master out.
516 Delivery::no_outs_cuz_we_no_monitor (bool yn)
518 _no_outs_cuz_we_no_monitor = yn;
522 Delivery::set_name (const std::string& name)
524 bool ret = IOProcessor::set_name (name);
527 ret = _panshell->set_name (name);
534 Delivery::output_changed (IOChange change, void* /*src*/)
536 if (change.type & IOChange::ConfigurationChanged) {
538 _output_buffers->attach_buffers (_output->ports ());
542 boost::shared_ptr<Panner>
543 Delivery::panner () const
545 return _panshell->panner();