Move panner bypass state up to the PannerShell so that it is preserved even when...
[ardour.git] / libs / ardour / delivery.cc
index bf152420940a86a30ec2be40ae39edc2778fb0ea..e7d435bacfd5470705bee37666707bfa4521d45e 100644 (file)
@@ -1,16 +1,16 @@
 /*
-    Copyright (C) 2009 Paul Davis 
-    
+    Copyright (C) 2009 Paul Davis
+
     This program is free software; you can redistribute it and/or modify it
     under the terms of the GNU General Public License as published by the Free
     Software Foundation; either version 2 of the License, or (at your option)
     any later version.
-    
+
     This program is distributed in the hope that it will be useful, but WITHOUT
     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     for more details.
-    
+
     You should have received a copy of the GNU General Public License along
     with this program; if not, write to the Free Software Foundation, Inc.,
     675 Mass Ave, Cambridge, MA 02139, USA.
 #include <algorithm>
 
 #include "pbd/enumwriter.h"
+#include "pbd/convert.h"
+
+#include "ardour/midi_buffer.h"
+
+#include "ardour/debug.h"
 #include "ardour/delivery.h"
 #include "ardour/audio_buffer.h"
+#include "ardour/audio_port.h"
+#include "ardour/amp.h"
 #include "ardour/buffer_set.h"
 #include "ardour/configuration.h"
 #include "ardour/io.h"
 #include "ardour/meter.h"
+#include "ardour/mute_master.h"
+#include "ardour/panner.h"
+#include "ardour/panner_shell.h"
+#include "ardour/pannable.h"
+#include "ardour/port.h"
 #include "ardour/session.h"
+#include "ardour/audioengine.h"
+
+#include "i18n.h"
 
 using namespace std;
+using namespace PBD;
 using namespace ARDOUR;
 
+PBD::Signal1<void, pframes_t> Delivery::CycleStart;
+PBD::Signal0<int>             Delivery::PannersLegal;
+bool                          Delivery::panners_legal = false;
+
 /* deliver to an existing IO object */
 
-Delivery::Delivery (Session& s, IO* io, const string& name, Role r)
-       : IOProcessor(s, io, name)
+Delivery::Delivery (Session& s, boost::shared_ptr<IO> io, boost::shared_ptr<Pannable> pannable,
+                    boost::shared_ptr<MuteMaster> mm, const string& name, Role r)
+       : IOProcessor(s, boost::shared_ptr<IO>(), (role_requires_output_ports (r) ? io : boost::shared_ptr<IO>()), name)
        , _role (r)
-       , _metering (false)
-       , _muted_by_self (false)
-       , _muted_by_others (false)
+       , _output_buffers (new BufferSet())
+       , _current_gain (1.0)
+       , _no_outs_cuz_we_no_monitor (false)
+       , _mute_master (mm)
+       , no_panner_reset (false)
+        , scnt (0)
 {
-}
+       if (pannable) {
+               _panshell = boost::shared_ptr<PannerShell>(new PannerShell (_name, _session, pannable));
+       }
 
-/* deliver to a new IO object */
+       _display_to_user = false;
 
-Delivery::Delivery (Session& s, const string& name, Role r)
-       : IOProcessor(s, name)
-       , _role (r)
-       , _metering (false)
-       , _muted_by_self (false)
-       , _muted_by_others (false)
-{
+       if (_output) {
+               _output->changed.connect_same_thread (*this, boost::bind (&Delivery::output_changed, this, _1, _2));
+       }
+
+       CycleStart.connect_same_thread (*this, boost::bind (&Delivery::cycle_start, this, _1));
 }
 
-/* reconstruct from XML */
+/* deliver to a new IO object */
 
-Delivery::Delivery (Session& s, const XMLNode& node)
-       : IOProcessor (s, "reset")
-       , _role (Role (0))
-       , _metering (false)
-       , _muted_by_self (false)
-       , _muted_by_others (false)
+Delivery::Delivery (Session& s, boost::shared_ptr<Pannable> pannable, boost::shared_ptr<MuteMaster> mm, const string& name, Role r)
+       : IOProcessor(s, false, (role_requires_output_ports (r) ? true : false), name)
+       , _role (r)
+       , _output_buffers (new BufferSet())
+       , _current_gain (1.0)
+       , _no_outs_cuz_we_no_monitor (false)
+       , _mute_master (mm)
+       , no_panner_reset (false)
+        , scnt (0)
 {
-       if (set_state (node)) {
-               throw failed_constructor ();
+       if (pannable) {
+               _panshell = boost::shared_ptr<PannerShell>(new PannerShell (_name, _session, pannable));
        }
-}
 
+       _display_to_user = false;
 
-bool
-Delivery::visible () const
-{
-       if (_role & (Main|Solo)) {
-               return false;
+       if (_output) {
+               _output->changed.connect_same_thread (*this, boost::bind (&Delivery::output_changed, this, _1, _2));
        }
 
-       return true;
+       CycleStart.connect_same_thread (*this, boost::bind (&Delivery::cycle_start, this, _1));
 }
 
-bool
-Delivery::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
+
+Delivery::~Delivery()
 {
-       out = in;
-       return true;
+       DEBUG_TRACE (DEBUG::Destruction, string_compose ("delivery %1 destructor\n", _name));
+       delete _output_buffers;
 }
 
-bool
-Delivery::configure_io (ChanCount in, ChanCount out)
+std::string
+Delivery::display_name () const
 {
-       if (out != in) { // always 1:1
-               return false;
+       switch (_role) {
+       case Main:
+               return _("main outs");
+               break;
+       case Listen:
+               return _("listen");
+               break;
+       case Send:
+       case Insert:
+       default:
+               return name();
        }
-       
-       return Processor::configure_io (in, out);
 }
 
 void
-Delivery::run_in_place (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes)
+Delivery::cycle_start (pframes_t /*nframes*/)
 {
-       if (_io->n_outputs().get (_io->default_type()) == 0) {
-               return;
-       }
+       _no_outs_cuz_we_no_monitor = false;
+}
 
-       if (!active() || _muted_by_self || _muted_by_others) {
-               silence (nframes);
-               if (_metering) {
-                       _io->peak_meter().reset();
+bool
+Delivery::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
+{
+       if (_role == Main) {
+
+               /* the out buffers will be set to point to the port output buffers
+                  of our output object.
+               */
+
+               if (_output) {
+                       if (_output->n_ports() != ChanCount::ZERO) {
+                               /* increase number of output ports if the processor chain requires it */
+                               out = ChanCount::max (_output->n_ports(), in);
+                               return true;
+                       } else {
+                               /* not configured yet - we will passthru */
+                               out = in;
+                               return true;
+                       }
+               } else {
+                       fatal << "programming error: this should never be reached" << endmsg;
+                       /*NOTREACHED*/
                }
-       } else {
 
-               // we have to copy the input, because IO::deliver_output may alter the buffers
-               // in-place, which a send must never do.
 
-               BufferSet& sendbufs = _session.get_mix_buffers (bufs.count());
+       } else if (_role == Insert) {
 
-               sendbufs.read_from(bufs, nframes);
-               assert(sendbufs.count() == bufs.count());
+               /* the output buffers will be filled with data from the *input* ports
+                  of this Insert.
+               */
 
-               _io->deliver_output (sendbufs, start_frame, end_frame, nframes);
-               
-               if (_metering) {
-                       if (_io->effective_gain() == 0) {
-                               _io->peak_meter().reset();
+               if (_input) {
+                       if (_input->n_ports() != ChanCount::ZERO) {
+                               out = _input->n_ports();
+                               return true;
                        } else {
-                               _io->peak_meter().run_in_place(_io->output_buffers(), start_frame, end_frame, nframes);
+                               /* not configured yet - we will passthru */
+                               out = in;
+                               return true;
                        }
+               } else {
+                       fatal << "programming error: this should never be reached" << endmsg;
+                       /*NOTREACHED*/
                }
+
+       } else {
+               fatal << "programming error: this should never be reached" << endmsg;
        }
+
+       return false;
 }
 
-void
-Delivery::set_metering (bool yn)
+/** Caller must hold process lock */
+bool
+Delivery::configure_io (ChanCount in, ChanCount out)
 {
-       _metering = yn;
-       
-       if (!_metering) {
-               /* XXX possible thread hazard here */
-               _io->peak_meter().reset();
+       assert (!AudioEngine::instance()->process_lock().trylock());
+
+       /* check configuration by comparison with our I/O port configuration, if appropriate.
+          see ::can_support_io_configuration() for comments
+       */
+
+       if (_role == Main) {
+
+               if (_output) {
+                       if (_output->n_ports() != out) {
+                               if (_output->n_ports() != ChanCount::ZERO) {
+                                       _output->ensure_io (out, false, this);
+                               } else {
+                                       /* I/O not yet configured */
+                               }
+                       }
+               }
+
+       } else if (_role == Insert) {
+
+               if (_input) {
+                       if (_input->n_ports() != in) {
+                               if (_input->n_ports() != ChanCount::ZERO) {
+                                       fatal << _name << " programming error: configure_io called with " << in << " and " << out << " with " << _input->n_ports() << " input ports" << endmsg;
+                                       /*NOTREACHED*/
+                               } else {
+                                       /* I/O not yet configured */
+                               }
+                       }
+               }
+
        }
-}
-void
-Delivery::set_self_mute (bool yn)
-{
-       if (yn != _muted_by_self) {
-               _muted_by_self = yn;
-               SelfMuteChange (); // emit signal
+
+       if (!Processor::configure_io (in, out)) {
+               return false;
        }
+
+       reset_panner ();
+
+       return true;
 }
 
 void
-Delivery::set_nonself_mute (bool yn)
+Delivery::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool result_required)
 {
-       if (yn != _muted_by_others) {
-               _muted_by_others = yn;
-               OtherMuteChange (); // emit signal
+       assert (_output);
+
+       PortSet& ports (_output->ports());
+       gain_t tgain;
+
+       if (_output->n_ports ().get (_output->default_type()) == 0) {
+               goto out;
+       }
+
+       if (!_active && !_pending_active) {
+               _output->silence (nframes);
+               goto out;
+       }
+
+       /* this setup is not just for our purposes, but for anything that comes after us in the
+          processing pathway that wants to use this->output_buffers() for some reason.
+       */
+
+       output_buffers().get_jack_port_addresses (ports, nframes);
+
+       // this Delivery processor is not a derived type, and thus we assume
+       // we really can modify the buffers passed in (it is almost certainly
+       // the main output stage of a Route). Contrast with Send::run()
+       // which cannot do this.
+
+       tgain = target_gain ();
+
+       if (tgain != _current_gain) {
+               /* target gain has changed */
+
+               Amp::apply_gain (bufs, nframes, _current_gain, tgain);
+               _current_gain = tgain;
+
+       } else if (tgain == 0.0) {
+
+               /* we were quiet last time, and we're still supposed to be quiet.
+                  Silence the outputs, and make sure the buffers are quiet too,
+               */
+
+               _output->silence (nframes);
+               if (result_required) {
+                       bufs.set_count (output_buffers().count ());
+                       Amp::apply_simple_gain (bufs, nframes, 0.0);
+               }
+               goto out;
+
+       } else if (tgain != 1.0) {
+
+               /* target gain has not changed, but is not unity */
+               Amp::apply_simple_gain (bufs, nframes, tgain);
+       }
+
+#if 0
+        if (_session.transport_rolling()) {
+                cerr << name() << " first value written : " << scnt << endl;
+                for (BufferSet::audio_iterator b = bufs.audio_begin(); b != bufs.audio_end(); ++b) {
+                        Sample* p = b->data ();
+                        float s = (float) scnt;
+                        for (pframes_t n = 0; n < nframes; ++n) {
+                                p[n] =  s * 0.001;
+                                s += 1.0;
+                        }
+                }
+                scnt += nframes;
+        }
+#endif
+
+       if (_panshell && !_panshell->bypassed()) {
+
+               // Use the panner to distribute audio to output port buffers
+
+               _panshell->run (bufs, output_buffers(), start_frame, end_frame, nframes);
+
+
+       } else {
+
+               // Do a 1:1 copy of data to output ports
+
+               if (bufs.count().n_audio() > 0 && ports.count().n_audio () > 0) {
+                       _output->copy_to_outputs (bufs, DataType::AUDIO, nframes, 0);
+                }
+
+               if (bufs.count().n_midi() > 0 && ports.count().n_midi () > 0) {
+                       _output->copy_to_outputs (bufs, DataType::MIDI, nframes, 0);
+               }
        }
+
+        if (result_required) {
+                bufs.read_from (output_buffers (), nframes);
+        }
+
+  out:
+       _active = _pending_active;
 }
 
 XMLNode&
@@ -170,34 +341,259 @@ Delivery::state (bool full_state)
                node.add_property("type", "delivery");
        }
 
-       node.add_property("metering", (_metering ? "yes" : "no"));
-       node.add_property("self-muted", (_muted_by_self ? "yes" : "no"));
-       node.add_property("other-muted", (_muted_by_others ? "yes" : "no"));
        node.add_property("role", enum_2_string(_role));
 
+       if (_panshell) {
+               node.add_child_nocopy (_panshell->get_state ());
+       }
+
        return node;
 }
 
 int
-Delivery::set_state (const XMLNode& node)
+Delivery::set_state (const XMLNode& node, int version)
 {
        const XMLProperty* prop;
-       
+
+       if (IOProcessor::set_state (node, version)) {
+               return -1;
+       }
+
        if ((prop = node.property ("role")) != 0) {
                _role = Role (string_2_enum (prop->value(), _role));
+               // std::cerr << this << ' ' << _name << " set role to " << enum_2_string (_role) << std::endl;
+       } else {
+               // std::cerr << this << ' ' << _name << " NO ROLE INFO\n";
        }
 
-       if ((prop = node.property ("metering")) != 0) {
-               set_metering (prop->value() == "yes");
+       XMLNode* pan_node = node.child (X_("PannerShell"));
+
+       if (pan_node && _panshell) {
+               _panshell->set_state (*pan_node, version);
        }
 
-       if ((prop = node.property ("self-muted")) != 0) {
-               set_self_mute (prop->value() == "yes");
+       reset_panner ();
+
+       return 0;
+}
+
+void
+Delivery::unpan ()
+{
+       /* caller must hold process lock */
+
+       _panshell.reset ();
+}
+
+void
+Delivery::reset_panner ()
+{
+       if (panners_legal) {
+               if (!no_panner_reset) {
+
+                       uint32_t ntargets;
+
+                       if (_output) {
+                               ntargets = _output->n_ports().n_audio();
+                       } else {
+                               ntargets = _configured_output.n_audio();
+                       }
+
+                       if (_panshell) {
+                               _panshell->configure_io (ChanCount (DataType::AUDIO, pans_required()), ChanCount (DataType::AUDIO, ntargets));
+                               
+                               if (_role == Main) {
+                                       _panshell->pannable()->set_panner (_panshell->panner());
+                               }
+                       }
+               }
+
+       } else {
+               panner_legal_c.disconnect ();
+               PannersLegal.connect_same_thread (panner_legal_c, boost::bind (&Delivery::panners_became_legal, this));
        }
+}
 
-       if ((prop = node.property ("other-muted")) != 0) {
-               set_nonself_mute (prop->value() == "yes");
+int
+Delivery::panners_became_legal ()
+{
+       uint32_t ntargets;
+
+       if (_output) {
+               ntargets = _output->n_ports().n_audio();
+       } else {
+               ntargets = _configured_output.n_audio();
+       }
+
+       if (_panshell) {
+               _panshell->configure_io (ChanCount (DataType::AUDIO, pans_required()), ChanCount (DataType::AUDIO, ntargets));
+               
+               if (_role == Main) {
+                       _panshell->pannable()->set_panner (_panshell->panner());
+               }
        }
 
+       panner_legal_c.disconnect ();
        return 0;
 }
+
+void
+Delivery::defer_pan_reset ()
+{
+       no_panner_reset = true;
+}
+
+void
+Delivery::allow_pan_reset ()
+{
+       no_panner_reset = false;
+       reset_panner ();
+}
+
+
+int
+Delivery::disable_panners (void)
+{
+       panners_legal = false;
+       return 0;
+}
+
+int
+Delivery::reset_panners ()
+{
+       panners_legal = true;
+       return *PannersLegal ();
+}
+
+void
+Delivery::flush_buffers (framecnt_t nframes, framepos_t time)
+{
+       /* io_lock, not taken: function must be called from Session::process() calltree */
+
+       PortSet& ports (_output->ports());
+
+       for (PortSet::iterator i = ports.begin(); i != ports.end(); ++i) {
+               (*i).flush_buffers (nframes, time);
+       }
+}
+
+void
+Delivery::transport_stopped (framepos_t now)
+{
+        Processor::transport_stopped (now);
+
+       if (_panshell) {
+               _panshell->pannable()->transport_stopped (now);
+       }
+
+        if (_output) {
+                PortSet& ports (_output->ports());
+
+                for (PortSet::iterator i = ports.begin(); i != ports.end(); ++i) {
+                        (*i).transport_stopped ();
+                }
+        }
+}
+
+void
+Delivery::realtime_locate ()
+{
+        if (_output) {
+                PortSet& ports (_output->ports());
+
+                for (PortSet::iterator i = ports.begin(); i != ports.end(); ++i) {
+                        (*i).realtime_locate ();
+                }
+        }
+}
+
+gain_t
+Delivery::target_gain ()
+{
+       /* if we've been requested to deactivate, our target gain is zero */
+
+       if (!_pending_active) {
+               return 0.0;
+       }
+
+       /* if we've been told not to output because its a monitoring situation and
+          we're not monitoring, then be quiet.
+       */
+
+       if (_no_outs_cuz_we_no_monitor) {
+               return 0.0;
+       }
+
+        MuteMaster::MutePoint mp = MuteMaster::Main; // stupid gcc uninit warning
+
+        switch (_role) {
+        case Main:
+                mp = MuteMaster::Main;
+                break;
+        case Listen:
+                mp = MuteMaster::Listen;
+                break;
+        case Send:
+        case Insert:
+        case Aux:
+               if (_pre_fader) {
+                       mp = MuteMaster::PreFader;
+               } else {
+                       mp = MuteMaster::PostFader;
+               }
+                break;
+        }
+
+        gain_t desired_gain = _mute_master->mute_gain_at (mp);
+
+        if (_role == Listen && _session.monitor_out() && !_session.listening()) {
+
+                /* nobody is soloed, and this delivery is a listen-send to the
+                   control/monitor/listen bus, we should be silent since
+                   it gets its signal from the master out.
+                */
+
+                desired_gain = 0.0;
+
+        }
+
+       return desired_gain;
+}
+
+void
+Delivery::no_outs_cuz_we_no_monitor (bool yn)
+{
+       _no_outs_cuz_we_no_monitor = yn;
+}
+
+bool
+Delivery::set_name (const std::string& name)
+{
+       bool ret = IOProcessor::set_name (name);
+
+       if (ret) {
+               ret = _panshell->set_name (name);
+       }
+
+       return ret;
+}
+
+void
+Delivery::output_changed (IOChange change, void* /*src*/)
+{
+       if (change.type & IOChange::ConfigurationChanged) {
+               reset_panner ();
+               _output_buffers->attach_buffers (_output->ports ());
+       }
+}
+
+boost::shared_ptr<Panner>
+Delivery::panner () const
+{
+       if (_panshell) {
+               return _panshell->panner();
+       } else {
+               return boost::shared_ptr<Panner>();
+       }
+}
+