Don't raise an error when trying to auto-connect master to physical outputs if the...
[ardour.git] / libs / ardour / delivery.cc
index 04875617247293473914024f0ea121cb29c8039f..1b5f96d36cfb14e871bfa9c15f5b1a518034ba1d 100644 (file)
@@ -22,6 +22,8 @@
 #include "pbd/enumwriter.h"
 #include "pbd/convert.h"
 
+#include "ardour/midi_buffer.h"
+
 #include "ardour/delivery.h"
 #include "ardour/audio_buffer.h"
 #include "ardour/amp.h"
@@ -47,7 +49,7 @@ bool                         Delivery::panners_legal = false;
 /* deliver to an existing IO object */
 
 Delivery::Delivery (Session& s, boost::shared_ptr<IO> io, boost::shared_ptr<MuteMaster> mm, const string& name, Role r)
-       : IOProcessor(s, boost::shared_ptr<IO>(), (r == Listen ? boost::shared_ptr<IO>() : io), name)
+       : IOProcessor(s, boost::shared_ptr<IO>(), (role_requires_output_ports (r) ? io : boost::shared_ptr<IO>()), name)
        , _role (r)
        , _output_buffers (new BufferSet())
        , _current_gain (1.0)
@@ -71,7 +73,7 @@ Delivery::Delivery (Session& s, boost::shared_ptr<IO> io, boost::shared_ptr<Mute
 /* deliver to a new IO object */
 
 Delivery::Delivery (Session& s, boost::shared_ptr<MuteMaster> mm, const string& name, Role r)
-       : IOProcessor(s, false, (r == Listen ? false : true), name)
+       : IOProcessor(s, false, (role_requires_output_ports (r) ? true : false), name)
        , _role (r)
        , _output_buffers (new BufferSet())
        , _current_gain (1.0)
@@ -145,8 +147,25 @@ Delivery::Delivery (Session& s, boost::shared_ptr<IO> out, boost::shared_ptr<Mut
        CycleStart.connect (mem_fun (*this, &Delivery::cycle_start));
 }
 
+std::string
+Delivery::display_name () const
+{
+       switch (_role) {
+       case Main:
+               return _("main outs");
+               break;
+       case Listen:
+               return _("listen");
+               break;
+       case Send:
+       case Insert:
+       default:
+               return name();
+       }
+}
+
 void
-Delivery::cycle_start (nframes_t nframes)
+Delivery::cycle_start (nframes_t /*nframes*/)
 {
        _output_offset = 0;
        _no_outs_cuz_we_no_monitor = false;
@@ -161,44 +180,124 @@ Delivery::increment_output_offset (nframes_t n)
 bool
 Delivery::visible () const
 {
-       if (_role & Main) {
-               return false;
-       }
-
        return true;
 }
 
 bool
 Delivery::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
 {
-       out = in;
-       return true;
+       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) {
+                               out = _output->n_ports();
+                               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 if (_role == Insert) {
+
+               /* the output buffers will be filled with data from the *input* ports
+                  of this Insert. 
+               */
+
+               if (_input) { 
+                       if (_input->n_ports() != ChanCount::ZERO) {
+                               out = _input->n_ports();
+                               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 {
+               fatal << "programming error: this should never be reached" << endmsg;
+       }
+
+       return false;
 }
 
 bool
 Delivery::configure_io (ChanCount in, ChanCount out)
 {
-       if (out != in) { // always 1:1
+       /* 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) {
+                                       fatal << _name << " programming error: configure_io with nports = " << _output->n_ports() << " called with " << in << " and " << out << " with " << _output->n_ports() << " output ports" << endmsg;
+                                       /*NOTREACHED*/
+                               } 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 */
+                               }
+                       }
+               }
+       }
+
+       if (!Processor::configure_io (in, out)) {
                return false;
        }
 
        reset_panner ();
-       
-       return Processor::configure_io (in, out);
+
+       return true;
 }
 
 void
 Delivery::run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes)
 {
+       assert (_output);
+
+       PortSet& ports (_output->ports());
+       gain_t tgain;
+
        if (_output->n_ports ().get (_output->default_type()) == 0) {
-               return;
+               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.
        */
 
-       PortSet& ports (_output->ports());
        output_buffers().attach_buffers (ports, nframes, _output_offset);
 
        // this Delivery processor is not a derived type, and thus we assume
@@ -206,7 +305,7 @@ Delivery::run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nfra
        // the main output stage of a Route). Contrast with Send::run()
        // which cannot do this.
 
-       gain_t tgain = target_gain ();
+       tgain = target_gain ();
        
        if (tgain != _current_gain) {
                
@@ -220,11 +319,10 @@ Delivery::run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nfra
                /* 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);
                Amp::apply_simple_gain (bufs, nframes, 0.0);
-               
-               return;
+               goto out;
 
        } else if (tgain != 1.0) {
 
@@ -232,8 +330,6 @@ Delivery::run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nfra
                Amp::apply_simple_gain (bufs, nframes, tgain);
        }
 
-       // Attach output buffers to port buffers
-
        if (_panner && _panner->npanners() && !_panner->bypassed()) {
 
                // Use the panner to distribute audio to output port buffers
@@ -251,8 +347,10 @@ Delivery::run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nfra
                        _output->copy_to_outputs (bufs, DataType::MIDI, nframes, _output_offset);
                }
        }
-}
 
+  out:
+       _active = _pending_active;
+}
 
 XMLNode&
 Delivery::state (bool full_state)
@@ -406,6 +504,12 @@ Delivery::flush (nframes_t nframes)
 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.
        */
@@ -431,11 +535,9 @@ Delivery::target_gain ()
                        break;
                case Send:
                case Insert:
-                       if (_placement == PreFader) {
-                               mp = MuteMaster::PreFader;
-                       } else {
-                               mp = MuteMaster::PostFader;
-                       }
+               case Aux:
+                       /* XXX FIX ME this is wrong, we need per-delivery muting */
+                       mp = MuteMaster::PreFader;
                        break;
                }
 
@@ -476,7 +578,7 @@ Delivery::set_name (const std::string& name)
 }
 
 void
-Delivery::output_changed (IOChange change, void* src)
+Delivery::output_changed (IOChange change, void* /*src*/)
 {
        if (change & ARDOUR::ConfigurationChanged) {
                reset_panner ();