extend strict-i/o to include route outputs.
[ardour.git] / gtk2_ardour / processor_box.cc
index c5428ae2e01dccedf81c712735e496089dd51864..03492d7c84f48536f37fcc5fb081f9a4d096f72b 100644 (file)
@@ -61,6 +61,8 @@
 #include "ardour/session.h"
 #include "ardour/types.h"
 
+#include "LuaBridge/LuaBridge.h"
+
 #include "actions.h"
 #include "ardour_dialog.h"
 #include "ardour_ui.h"
@@ -70,6 +72,7 @@
 #include "luainstance.h"
 #include "mixer_ui.h"
 #include "mixer_strip.h"
+#include "plugin_pin_dialog.h"
 #include "plugin_selector.h"
 #include "plugin_ui.h"
 #include "port_insert_ui.h"
@@ -106,26 +109,46 @@ RefPtr<Action> ProcessorBox::cut_action;
 RefPtr<Action> ProcessorBox::copy_action;
 RefPtr<Action> ProcessorBox::rename_action;
 RefPtr<Action> ProcessorBox::delete_action;
+RefPtr<Action> ProcessorBox::manage_pins_action;
 RefPtr<Action> ProcessorBox::edit_action;
 RefPtr<Action> ProcessorBox::edit_generic_action;
 RefPtr<ActionGroup> ProcessorBox::processor_box_actions;
 Gtkmm2ext::ActionMap ProcessorBox::myactions (X_("processor box"));
 Gtkmm2ext::Bindings* ProcessorBox::bindings = 0;
 
-static const uint32_t audio_port_color = 0x4A8A0EFF; // Green
-static const uint32_t midi_port_color = 0x960909FF; //Red
+
+// TODO consolidate with PluginPinDialog::set_color
+static void set_routing_color (cairo_t* cr, bool midi)
+{
+       static const uint32_t audio_port_color = 0x4A8A0EFF; // Green
+       static const uint32_t midi_port_color = 0x960909FF; //Red
+
+       if (midi) {
+               cairo_set_source_rgb (cr,
+                               UINT_RGBA_R_FLT(midi_port_color),
+                               UINT_RGBA_G_FLT(midi_port_color),
+                               UINT_RGBA_B_FLT(midi_port_color));
+       } else {
+               cairo_set_source_rgb (cr,
+                               UINT_RGBA_R_FLT(audio_port_color),
+                               UINT_RGBA_G_FLT(audio_port_color),
+                               UINT_RGBA_B_FLT(audio_port_color));
+       }
+}
 
 ProcessorEntry::ProcessorEntry (ProcessorBox* parent, boost::shared_ptr<Processor> p, Width w)
        : _button (ArdourButton::led_default_elements)
        , _position (PreFader)
        , _position_num(0)
+       , _parent (parent)
        , _selectable(true)
        , _unknown_processor(false)
-       , _parent (parent)
        , _processor (p)
        , _width (w)
-       , _input_icon(true)
-       , _output_icon(false)
+       , input_icon(true)
+       , output_icon(false)
+       , routing_icon(true)
+       , output_routing_icon(false)
        , _plugin_display(0)
 {
        _vbox.show ();
@@ -151,8 +174,8 @@ ProcessorEntry::ProcessorEntry (ProcessorBox* parent, boost::shared_ptr<Processo
        }
        if (_processor) {
 
-               _vbox.pack_start (_routing_icon);
-               _vbox.pack_start (_input_icon);
+               _vbox.pack_start (routing_icon);
+               _vbox.pack_start (input_icon);
                _vbox.pack_start (_button, true, true);
 
                boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (_processor);
@@ -171,17 +194,21 @@ ProcessorEntry::ProcessorEntry (ProcessorBox* parent, boost::shared_ptr<Processo
                                _plugin_display->show ();
                        }
                }
-               _vbox.pack_end (_output_icon);
+               _vbox.pack_end (output_routing_icon);
+               _vbox.pack_end (output_icon);
 
                _button.set_active (_processor->active());
 
-               _routing_icon.set_no_show_all(true);
-               _input_icon.set_no_show_all(true);
+               input_icon.set_no_show_all(true);
+               routing_icon.set_no_show_all(true);
+               output_icon.set_no_show_all(true);
+               output_routing_icon.set_no_show_all(true);
 
                _button.show ();
-               _routing_icon.set_visible(false);
-               _input_icon.hide();
-               _output_icon.show();
+               input_icon.hide();
+               output_icon.show();
+               routing_icon.hide();
+               output_routing_icon.hide();
 
                _processor->ActiveChanged.connect (active_connection, invalidator (*this), boost::bind (&ProcessorEntry::processor_active_changed, this), gui_context());
                _processor->PropertyChanged.connect (name_connection, invalidator (*this), boost::bind (&ProcessorEntry::processor_property_changed, this, _1), gui_context());
@@ -208,12 +235,6 @@ ProcessorEntry::ProcessorEntry (ProcessorBox* parent, boost::shared_ptr<Processo
                        }
                }
 
-               _input_icon.set_ports(_processor->input_streams());
-               _output_icon.set_ports(_processor->output_streams());
-
-               _routing_icon.set_sources(_processor->input_streams());
-               _routing_icon.set_sinks(_processor->output_streams());
-
                setup_tooltip ();
                setup_visuals ();
        } else {
@@ -340,13 +361,6 @@ ProcessorEntry::set_position (Position p, uint32_t num)
 {
        _position = p;
        _position_num = num;
-
-       if (_position_num == 0 || _routing_icon.get_visible()) {
-               _input_icon.show();
-       } else {
-               _input_icon.hide();
-       }
-
        setup_visuals ();
 }
 
@@ -460,13 +474,11 @@ ProcessorEntry::processor_property_changed (const PropertyChange& what_changed)
 void
 ProcessorEntry::processor_configuration_changed (const ChanCount in, const ChanCount out)
 {
-       _input_icon.set_ports(in);
-       _output_icon.set_ports(out);
-       _routing_icon.set_sources(in);
-       _routing_icon.set_sinks(out);
-       _input_icon.queue_draw();
-       _output_icon.queue_draw();
-       _routing_icon.queue_draw();
+       _parent->setup_routing_feeds ();
+       input_icon.queue_draw();
+       output_icon.queue_draw();
+       routing_icon.queue_draw();
+       output_routing_icon.queue_draw();
 }
 
 void
@@ -929,94 +941,28 @@ PluginInsertProcessorEntry::PluginInsertProcessorEntry (ProcessorBox* b, boost::
        , _plugin_insert (p)
 {
        p->PluginIoReConfigure.connect (
-               _splitting_connection, invalidator (*this), boost::bind (&PluginInsertProcessorEntry::plugin_insert_splitting_changed, this), gui_context()
+               _iomap_connection, invalidator (*this), boost::bind (&PluginInsertProcessorEntry::iomap_changed, this), gui_context()
+               );
+       p->PluginMapChanged.connect (
+               _iomap_connection, invalidator (*this), boost::bind (&PluginInsertProcessorEntry::iomap_changed, this), gui_context()
+               );
+       p->PluginConfigChanged.connect (
+               _iomap_connection, invalidator (*this), boost::bind (&PluginInsertProcessorEntry::iomap_changed, this), gui_context()
                );
-
-       plugin_insert_splitting_changed ();
 }
 
 void
-PluginInsertProcessorEntry::plugin_insert_splitting_changed ()
+PluginInsertProcessorEntry::iomap_changed ()
 {
-       ChanCount in, out; // actual configured i/o
-       _plugin_insert->configured_io (in, out);
-
-       /* get number of input ports */
-       ChanCount sinks = _plugin_insert->natural_input_streams();
-       if (!_plugin_insert->splitting () && _plugin_insert->get_count() > 1) {
-               /* replicated instances */
-               for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
-                       sinks.set(*t, sinks.get(*t) * _plugin_insert->get_count());
-               }
-       }
-       /* MIDI bypass */
-       if (_plugin_insert->natural_output_streams().n_midi() == 0 &&
-                       _plugin_insert->output_streams().n_midi() == 1) {
-               in.set(DataType::MIDI, 1);
-               out.set(DataType::MIDI, 1);
-               sinks.set(DataType::MIDI, 1);
-       }
-
-       /* the Input streams available (*valid* outputs from prev. plugin)
-        * this will be <= sinks. Some input-ports of this processor
-        * may be unconnected.
-        */
-       _routing_icon.set_sources(in);
-
-       /* the actual input ports of this processor */
-       _input_icon.set_ports(sinks);
-       _routing_icon.set_sinks(sinks);
-
-       /* set/override plugin-output ports to actual outputs-streams.
-        *
-        * This plugin may have unconnected output-ports (currently only in Mixbus,
-        * e.g channelstrip-EQ at the top of a MIDI-channel before the synth).
-        *
-        * The *next* processor below this one will only see the
-        * actual available streams (it cannot know the real outputs
-        * of this plugin).
-        *
-        * There is currently no API to query the ports of the previous (or next)
-        * processor.
-        *
-        * (normally - iff configuration succeeds - this is set during
-        * ProcessorEntry::processor_configuration_changed() and should
-        * equal _plugin_insert->output_streams())
-        */
-       _output_icon.set_ports(out);
-#ifndef NDEBUG
-       if (out != _plugin_insert->output_streams()) {
-               std::cerr << "Processor Wiring: " <<  processor()->name()
-                       << " out-ports: " << _plugin_insert->output_streams() // NB. does not include midi-bypass
-                       << " out-connections: " << out
-                       << endmsg;
-       }
-#endif
-
-       _routing_icon.set_splitting(_plugin_insert->splitting ());
-
-       if (_plugin_insert->splitting () ||  in != sinks)
-       {
-               _routing_icon.set_size_request (-1, std::max (7.f, rintf(7.f * UIConfiguration::instance().get_ui_scale())));
-               _routing_icon.set_visible(true);
-               _input_icon.show();
-       } else {
-               _routing_icon.set_visible(false);
-               if (_position_num != 0) {
-                       _input_icon.hide();
-               }
-       }
-
-       _input_icon.queue_draw();
-       _output_icon.queue_draw();
-       _routing_icon.queue_draw();
+       _parent->setup_routing_feeds ();
+       routing_icon.queue_draw();
+       output_routing_icon.queue_draw();
 }
 
 void
 PluginInsertProcessorEntry::hide_things ()
 {
        ProcessorEntry::hide_things ();
-       plugin_insert_splitting_changed ();
 }
 
 ProcessorEntry::PortIcon::PortIcon(bool input) {
@@ -1046,33 +992,13 @@ ProcessorEntry::PortIcon::on_expose_event (GdkEventExpose* ev)
        const double dx = rint(max(2., 2. * UIConfiguration::instance().get_ui_scale()));
        if (_ports.n_total() > 1) {
                for (uint32_t i = 0; i < _ports.n_total(); ++i) {
-                       if (i < _ports.n_midi()) {
-                               cairo_set_source_rgb (cr,
-                                               UINT_RGBA_R_FLT(midi_port_color),
-                                               UINT_RGBA_G_FLT(midi_port_color),
-                                               UINT_RGBA_B_FLT(midi_port_color));
-                       } else {
-                               cairo_set_source_rgb (cr,
-                                               UINT_RGBA_R_FLT(audio_port_color),
-                                               UINT_RGBA_G_FLT(audio_port_color),
-                                               UINT_RGBA_B_FLT(audio_port_color));
-                       }
+                       set_routing_color (cr, i < _ports.n_midi());
                        const float x = rintf(width * (.2f + .6f * i / (_ports.n_total() - 1.f)));
                        cairo_rectangle (cr, x-dx * .5, 0, 1+dx, height);
                        cairo_fill(cr);
                }
        } else if (_ports.n_total() == 1) {
-               if (_ports.n_midi() == 1) {
-                       cairo_set_source_rgb (cr,
-                                       UINT_RGBA_R_FLT(midi_port_color),
-                                       UINT_RGBA_G_FLT(midi_port_color),
-                                       UINT_RGBA_B_FLT(midi_port_color));
-               } else {
-                       cairo_set_source_rgb (cr,
-                                       UINT_RGBA_R_FLT(audio_port_color),
-                                       UINT_RGBA_G_FLT(audio_port_color),
-                                       UINT_RGBA_B_FLT(audio_port_color));
-               }
+               set_routing_color (cr, _ports.n_midi() == 1);
                const float x = rintf(width * .5);
                cairo_rectangle (cr, x-dx * .5, 0, 1+dx, height);
                cairo_fill(cr);
@@ -1083,6 +1009,186 @@ ProcessorEntry::PortIcon::on_expose_event (GdkEventExpose* ev)
        return true;
 }
 
+ProcessorEntry::RoutingIcon::RoutingIcon (bool input)
+       : _feed (false)
+       , _input (input)
+{
+       if (input) {
+               set_size_request (-1, std::max (7.f, rintf(8.f * UIConfiguration::instance().get_ui_scale())));
+       } else {
+               set_size_request (-1, std::max (10.f, rintf(12.f * UIConfiguration::instance().get_ui_scale())));
+       }
+}
+
+void
+ProcessorEntry::RoutingIcon::set (
+               const ARDOUR::ChanCount& in,
+               const ARDOUR::ChanCount& out,
+               const ARDOUR::ChanCount& sinks,
+               const ARDOUR::ChanCount& sources,
+               const ARDOUR::ChanMapping& in_map,
+               const ARDOUR::ChanMapping& out_map,
+               const ARDOUR::ChanMapping& thru_map)
+{
+       _in       = in;
+       _out      = out;
+       _sources  = sources;
+       _sinks    = sinks;
+       _in_map   = in_map;
+       _out_map  = out_map;
+       _thru_map = thru_map;
+}
+
+bool
+ProcessorEntry::RoutingIcon::identity () const {
+       if (!_in_map.is_monotonic () || !_in_map.is_identity ()) {
+               return false;
+       }
+       if (_in_map.n_total () != _sinks.n_total () || _in.n_total () != _sinks.n_total ()) {
+               return false;
+       }
+       if (_feed) {
+               if (!_f_out_map.is_monotonic () || !_f_out_map.is_identity ()) {
+                       return false;
+               }
+               if (_f_out_map.n_total () != _f_sources.n_total () || _sinks != _f_sources) {
+                       return false;
+               }
+       }
+       return true;
+}
+
+bool
+ProcessorEntry::RoutingIcon::out_identity () const {
+       if (!_out_map.is_monotonic () || !_out_map.is_identity ()) {
+               return false;
+       }
+       if (_out_map.n_total () != _sources.n_total () || _out.n_total () != _sources.n_total ()) {
+               return false;
+       }
+       if (_thru_map.n_total () > 0) {
+               return false;
+       }
+       return true;
+}
+
+void
+ProcessorEntry::RoutingIcon::set_feed (
+                               const ARDOUR::ChanCount& out,
+                               const ARDOUR::ChanCount& sources,
+                               const ARDOUR::ChanMapping& out_map,
+                               const ARDOUR::ChanMapping& thru_map)
+{
+       _f_out      = out;
+       _f_sources  = sources;
+       _f_out_map  = out_map;
+       _f_thru_map = thru_map;
+       _feed       = true;
+}
+
+double
+ProcessorEntry::RoutingIcon::pin_x_pos (uint32_t i, double width, uint32_t n_total, uint32_t n_midi, bool midi)
+{
+       if (!midi) { i += n_midi; }
+       if (n_total == 1) {
+               assert (i == 0);
+               return rint (width * .5) +.5;
+       }
+       return rint (width * (.2 + .6 * i / (n_total - 1))) + .5;
+}
+
+void
+ProcessorEntry::RoutingIcon::draw_X (cairo_t* cr, double x0, double height, bool midi)
+{
+       const double y0 = rint (height * .4) + .5;
+       const double dx = min (y0 - .5, 1. + rint (max(2., 2. * UIConfiguration::instance().get_ui_scale())));
+
+       cairo_move_to (cr, x0, 0);
+       cairo_line_to (cr, x0, y0);
+       cairo_move_to (cr, x0 - dx, y0 - dx);
+       cairo_line_to (cr, x0 + dx, y0 + dx);
+       cairo_move_to (cr, x0 - dx, y0 + dx);
+       cairo_line_to (cr, x0 + dx, y0 - dx);
+
+       set_routing_color (cr, midi);
+       cairo_set_line_width  (cr, 1.0);
+       cairo_stroke_preserve (cr);
+       cairo_set_source_rgba (cr, 0, 0, 0, .4); // darken
+       cairo_stroke (cr);
+}
+
+void
+ProcessorEntry::RoutingIcon::draw_gnd (cairo_t* cr, double x0, double height, bool midi)
+{
+       const double dx = 1 + rint (max(2., 2. * UIConfiguration::instance().get_ui_scale()));
+       const double y0 = rint (height * .66) + .5;
+
+       cairo_move_to (cr, x0, height);
+       cairo_line_to (cr, x0, y0);
+       cairo_move_to (cr, x0 - dx, y0);
+       cairo_line_to (cr, x0 + dx, y0);
+
+       set_routing_color (cr, midi);
+       cairo_set_line_width  (cr, 1.0);
+       cairo_stroke (cr);
+}
+
+void
+ProcessorEntry::RoutingIcon::draw_sidechain (cairo_t* cr, double x0, double height, bool midi)
+{
+       const double dx = 1 + rint (max(2., 2. * UIConfiguration::instance().get_ui_scale()));
+       const double y0 = rint (height * .6) + .5;
+
+       cairo_move_to (cr, x0 - dx, height);
+       cairo_line_to (cr, x0, y0);
+       cairo_line_to (cr, x0 + dx, height);
+       cairo_close_path (cr);
+
+       set_routing_color (cr, midi);
+       cairo_fill (cr);
+}
+
+void
+ProcessorEntry::RoutingIcon::draw_thru (cairo_t* cr, double x0, double height, bool midi)
+{
+       const double dx = 1 + rint (max(2., 2. * UIConfiguration::instance().get_ui_scale()));
+       const double y0 = rint (height * .5) + .5;
+
+       cairo_move_to (cr, x0 - dx - .5, y0);
+       cairo_line_to (cr, x0 + dx + .5, y0 - 2);
+
+       cairo_move_to (cr, x0 - dx - .5, y0 + 2);
+       cairo_line_to (cr, x0 + dx + .5, y0);
+
+       cairo_move_to (cr, x0, y0 + 1);
+       cairo_line_to (cr, x0, height);
+
+       set_routing_color (cr, midi);
+       cairo_set_line_width  (cr, 1.0);
+       cairo_stroke (cr);
+}
+
+void
+ProcessorEntry::RoutingIcon::draw_connection (cairo_t* cr, double x0, double x1, double y0, double y1, bool midi, bool dashed)
+{
+       double bz = abs (y1 - y0);
+
+       cairo_move_to (cr, x0, y0);
+       cairo_curve_to (cr, x0, y0 + bz, x1, y1 - bz, x1, y1);
+       cairo_set_line_width  (cr, 1.0);
+       cairo_set_line_cap  (cr,  CAIRO_LINE_CAP_ROUND);
+       cairo_set_source_rgb (cr, 1, 0, 0);
+       if (dashed) {
+               const double dashes[] = { 2, 3 };
+               cairo_set_dash (cr, dashes, 2, 0);
+       }
+       set_routing_color (cr, midi);
+       cairo_stroke (cr);
+       if (dashed) {
+               cairo_set_dash (cr, 0, 0, 0);
+       }
+}
+
 bool
 ProcessorEntry::RoutingIcon::on_expose_event (GdkEventExpose* ev)
 {
@@ -1104,109 +1210,115 @@ ProcessorEntry::RoutingIcon::on_expose_event (GdkEventExpose* ev)
        cairo_rectangle (cr, 0, 0, width, height);
        cairo_fill (cr);
 
-       Gdk::Color const fg = get_style()->get_fg (STATE_NORMAL);
-       cairo_set_source_rgb (cr, fg.get_red_p (), fg.get_green_p (), fg.get_blue_p ());
-
-       const uint32_t sources = _sources.n_total();
-       const uint32_t sinks = _sinks.n_total();
-
-       const uint32_t midi_sources = _sources.n_midi();
-       const uint32_t midi_sinks = _sinks.n_midi();
-       const uint32_t audio_sources = _sources.n_audio();
-       const uint32_t audio_sinks = _sinks.n_audio();
-
-       /* MIDI */
-       cairo_set_source_rgb (cr,
-                       UINT_RGBA_R_FLT(midi_port_color),
-                       UINT_RGBA_G_FLT(midi_port_color),
-                       UINT_RGBA_B_FLT(midi_port_color));
-       if (midi_sources > 0 && midi_sinks > 0 && sinks > 1 && sources > 1) {
-               for (uint32_t i = 0 ; i < midi_sources; ++i) {
-                       const float si_x  = rintf(width * (.2f + .6f * i  / (sinks - 1.f))) + .5f;
-                       const float si_x0 = rintf(width * (.2f + .6f * i / (sources - 1.f))) + .5f;
-                       cairo_move_to (cr, si_x, height);
-                       cairo_curve_to (cr, si_x, 0, si_x0, height, si_x0, 0);
-                       cairo_stroke (cr);
-               }
-       } else if (midi_sources == 1 && midi_sinks == 1 && sinks == 1 && sources == 1) {
-               const float si_x = rintf(width * .5f) + .5f;
-               cairo_move_to (cr, si_x, height);
-               cairo_line_to (cr, si_x, 0);
-               cairo_stroke (cr);
-       } else if (midi_sources == 1 && midi_sinks == 1) {
-               /* unusual cases -- removed synth, midi-track w/audio plugins */
-               const float si_x  = rintf(width * (sinks   > 1 ? .2f : .5f)) + .5f;
-               const float si_x0 = rintf(width * (sources > 1 ? .2f : .5f)) + .5f;
-               cairo_move_to (cr, si_x, height);
-               cairo_curve_to (cr, si_x, 0, si_x0, height, si_x0, 0);
-               cairo_stroke (cr);
-       } else if (midi_sources == 0 && midi_sinks == 1) {
-               const double dx = 1 + rint(max(2., 2. * UIConfiguration::instance().get_ui_scale()));
-               // draw "T"
-               //  TODO connect back to track-input of last midi-out if any, otherwise draw "X"
-               const float si_x  = rintf(width * .2f) + .5f;
-               cairo_move_to (cr, si_x, height);
-               cairo_line_to (cr, si_x, height * .66);
-               cairo_move_to (cr, si_x - dx, height * .66);
-               cairo_line_to (cr, si_x + dx, height * .66);
-               cairo_stroke (cr);
-#ifndef NDEBUG
-       } else if (midi_sources != 0 && midi_sinks != 0) {
-               PBD::warning << string_compose("Programming error: midi routing display: A %1 -> %2 | M %3 -> %4 | T %5 -> %6",
-                               audio_sources, audio_sinks, midi_sources, midi_sinks, sources, sinks) << endmsg;
-#endif
+       if (_input) {
+               expose_input_map (cr, width, height);
+       } else {
+               expose_output_map (cr, width, height);
        }
 
-       /* AUDIO */
-       cairo_set_source_rgb (cr,
-                       UINT_RGBA_R_FLT(audio_port_color),
-                       UINT_RGBA_G_FLT(audio_port_color),
-                       UINT_RGBA_B_FLT(audio_port_color));
-
-       if (_splitting) {
-               assert(audio_sources < 2);
-               assert(audio_sinks > 1);
-               /* assume there is only ever one MIDI port */
-               const float si_x0 = rintf(width * (midi_sources > 0 ? .8f : .5f)) + .5f;
-               for (uint32_t i = midi_sinks; i < sinks; ++i) {
-                       const float si_x = rintf(width * (.2f + .6f * i / (sinks - 1.f))) + .5f;
-                       cairo_move_to (cr, si_x, height);
-                       cairo_curve_to (cr, si_x, 0, si_x0, height, si_x0, 0);
-                       cairo_stroke (cr);
-               }
-       } else if (audio_sources > 1 && sinks > 1) {
-               for (uint32_t i = 0 ; i < audio_sources; ++i) {
-                       const float si_x = rintf(width * (.2f + .6f * (i + midi_sinks) / (sinks - 1.f))) + .5f;
-                       const float si_x0 = rintf(width * (.2f + .6f * (i + midi_sources) / (sources - 1.f))) + .5f;
-                       cairo_move_to (cr, si_x, height);
-                       cairo_curve_to (cr, si_x, 0, si_x0, height, si_x0, 0);
-                       cairo_stroke (cr);
-               }
-       } else if (audio_sources == 1 && audio_sinks > 0) {
-               float si_x, si_x0;
-               if (sinks == 1) {
-                       si_x = rintf(width * .5f) + .5f;
-               } else {
-                       si_x = rintf(width * (.2f + .6f * midi_sinks / (sinks - 1.f))) + .5f;
+       cairo_destroy(cr);
+       return true;
+}
+
+void
+ProcessorEntry::RoutingIcon::expose_input_map (cairo_t* cr, const double width, const double height)
+{
+       const uint32_t pc_in = _sinks.n_total();
+       const uint32_t pc_in_midi = _sinks.n_midi();
+
+       // TODO indicate midi-bypass ??
+       // TODO indicate side-chain
+
+       for (uint32_t i = 0; i < pc_in; ++i) {
+               const bool is_midi = i < pc_in_midi;
+               bool valid_in;
+               uint32_t pn = is_midi ? i : i - pc_in_midi;
+               DataType dt = is_midi ? DataType::MIDI : DataType::AUDIO;
+               uint32_t idx = _in_map.get (dt, pn, &valid_in);
+               if (!valid_in) {
+                       double x = pin_x_pos (i, width, pc_in, 0, is_midi);
+                       draw_gnd (cr, x, height, is_midi);
+                       continue;
+               }
+               if (idx >= _in.get (dt)) {
+                       // side-chain, probably
+                       double x = pin_x_pos (i, width, pc_in, 0, is_midi);
+                       draw_sidechain (cr, x, height, is_midi);
+                       continue;
                }
-               if (sources == 1) {
-                       si_x0 = rintf(width * .5f) + .5f;
+               double c_x0;
+               double c_x1 = pin_x_pos (i, width, pc_in, 0, false);
+
+               if (_feed) {
+                       bool valid_src;
+                       uint32_t src = _f_out_map.get_src (dt, idx, &valid_src);
+                       if (!valid_src) {
+                               double x = pin_x_pos (i, width, pc_in, 0, false);
+                               bool valid_thru;
+                               _f_thru_map.get (dt, idx, &valid_thru);
+                               if (valid_thru) {
+                                       draw_thru (cr, x, height, is_midi);
+                               } else {
+                                       draw_gnd (cr, x, height, is_midi);
+                               }
+                               continue;
+                       }
+                       c_x0 = pin_x_pos (src, width, _f_sources.n_total(), _f_sources.n_midi(), is_midi);
                } else {
-                       si_x0 = rintf(width * (.2f + .6f * midi_sources / (sources - 1.f))) + .5f;
+                       c_x0 = pin_x_pos (idx, width, _in.n_total(), _in.n_midi(), is_midi);
                }
-               cairo_move_to (cr, si_x, height);
-               cairo_curve_to (cr, si_x, 0, si_x0, height, si_x0, 0);
-               cairo_stroke (cr);
-#ifndef NDEBUG
-       } else if (audio_sources != 0 && audio_sinks != 0) {
-               PBD::warning << string_compose("Programming error: audio routing display: A %1 -> %2 | M %3 -> %4 | T %5 -> %6",
-                               audio_sources, audio_sinks, midi_sources, midi_sinks, sources, sinks) << endmsg;
-#endif
+               draw_connection (cr, c_x0, c_x1, 0, height, is_midi);
        }
-       cairo_destroy(cr);
-       return true;
 }
 
+void
+ProcessorEntry::RoutingIcon::expose_output_map (cairo_t* cr, const double width, const double height)
+{
+       const uint32_t pc_out = _sources.n_total();
+       const uint32_t pc_out_midi = _sources.n_midi();
+
+       const uint32_t n_out = _out.n_total();
+       const uint32_t n_out_midi = _out.n_midi();
+
+       for (uint32_t i = 0; i < pc_out; ++i) {
+               const bool is_midi = i < pc_out_midi;
+               bool valid_out;
+               uint32_t pn = is_midi ? i : i - pc_out_midi;
+               DataType dt = is_midi ? DataType::MIDI : DataType::AUDIO;
+               uint32_t idx = _out_map.get (dt, pn, &valid_out);
+               if (!valid_out) {
+                       continue;
+               }
+               double c_x0 = pin_x_pos (i, width, pc_out, 0, false);
+               double c_x1 = pin_x_pos (idx, width, n_out, n_out_midi, is_midi);
+               draw_connection (cr, c_x0, c_x1, 0, height - 3, is_midi);
+       }
+
+       // output arrows
+       for (uint32_t i = 0; i < n_out; ++i) {
+               const bool is_midi = i < n_out_midi;
+               double x = pin_x_pos (i, width, n_out, 0, is_midi);
+               uint32_t pn = is_midi ? i : i - n_out_midi;
+               DataType dt = is_midi ? DataType::MIDI : DataType::AUDIO;
+               bool valid_src;
+               _out_map.get_src (dt, pn, &valid_src);
+               if (!valid_src) {
+                       bool valid_thru;
+                       _thru_map.get (dt, pn, &valid_thru);
+                       if (valid_thru) {
+                               draw_thru (cr, x, height, is_midi);
+                       } else {
+                               draw_gnd (cr, x, height, is_midi);
+                       }
+               }
+               set_routing_color (cr, is_midi);
+               cairo_move_to (cr, x    , height);
+               cairo_line_to (cr, x - 3, height - 3);
+               cairo_line_to (cr, x + 3, height - 3);
+               cairo_close_path (cr);
+               cairo_fill (cr);
+       }
+}
 
 ProcessorEntry::PluginDisplay::PluginDisplay (boost::shared_ptr<ARDOUR::Plugin> p, uint32_t max_height)
        : _plug (p)
@@ -1384,10 +1496,14 @@ uint32_t
 ProcessorEntry::LuaPluginDisplay::render_inline (cairo_t *cr, uint32_t width)
 {
        Cairo::Context ctx (cr);
-       luabridge::LuaRef rv = (*_lua_render_inline)((Cairo::Context *)&ctx, width, _max_height);
-       if (rv.isTable ()) {
-               uint32_t h = rv[2];
-               return h;
+       try {
+               luabridge::LuaRef rv = (*_lua_render_inline)((Cairo::Context *)&ctx, width, _max_height);
+               if (rv.isTable ()) {
+                       uint32_t h = rv[2];
+                       return h;
+               }
+       } catch (luabridge::LuaException const& e) {
+               ;
        }
        return 0;
 }
@@ -1818,6 +1934,8 @@ ProcessorBox::show_processor_menu (int arg)
                pi = boost::dynamic_pointer_cast<PluginInsert> (single_selection->processor ());
        }
 
+       manage_pins_action->set_sensitive (pi != 0);
+
        /* allow editing with an Ardour-generated UI for plugin inserts with editors */
        edit_action->set_sensitive (pi && pi->plugin()->has_editor ());
 
@@ -2076,6 +2194,7 @@ ProcessorBox::choose_lua ()
                default:
                        return true;
        }
+       ss.hide ();
 
        PluginPtr p;
        try {
@@ -2325,6 +2444,8 @@ ProcessorBox::redisplay_processors ()
 
        _route->foreach_processor (sigc::mem_fun (*this, &ProcessorBox::add_processor_to_display));
        _route->foreach_processor (sigc::mem_fun (*this, &ProcessorBox::maybe_add_processor_to_ui_list));
+       _route->foreach_processor (sigc::mem_fun (*this, &ProcessorBox::maybe_add_processor_pin_mgr));
+
        setup_entry_positions ();
 }
 
@@ -2380,6 +2501,32 @@ ProcessorBox::maybe_add_processor_to_ui_list (boost::weak_ptr<Processor> w)
        WM::Manager::instance().register_window (wp);
 }
 
+void
+ProcessorBox::maybe_add_processor_pin_mgr (boost::weak_ptr<Processor> w)
+{
+       boost::shared_ptr<Processor> p = w.lock ();
+       if (!p || p->pinmgr_proxy ()) {
+               return;
+       }
+
+       PluginPinWindowProxy* wp = new PluginPinWindowProxy (
+                       string_compose ("PM-%2-%3", _route->id(), p->id()), w);
+       wp->set_session (_session);
+
+       const XMLNode* ui_xml = _session->extra_xml (X_("UI"));
+       if (ui_xml) {
+               wp->set_state (*ui_xml, 0);
+       }
+
+       void* existing_ui = p->get_ui ();
+
+       if (existing_ui) {
+               wp->use_window (*(reinterpret_cast<Gtk::Window*>(existing_ui)));
+       }
+
+       p->set_pingmgr_proxy (wp);
+       WM::Manager::instance().register_window (wp);
+}
 void
 ProcessorBox::help_count_visible_prefader_processors (boost::weak_ptr<Processor> p, uint32_t* cnt, bool* amp_seen)
 {
@@ -2475,6 +2622,102 @@ ProcessorBox::reordered ()
        setup_entry_positions ();
 }
 
+void
+ProcessorBox::setup_routing_feeds ()
+{
+       list<ProcessorEntry*> children = processor_display.children ();
+       for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
+               boost::shared_ptr<ARDOUR::Processor> p = (*i)->processor();
+               boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (p);
+
+               list<ProcessorEntry*>::iterator next = i;
+               next++;
+
+               if (pi) {
+                       ChanCount sinks = pi->natural_input_streams ();
+                       ChanCount sources = pi->natural_output_streams ();
+                       uint32_t count = pi->get_count ();
+                       ChanCount in, out;
+                       pi->configured_io (in, out);
+
+                       ChanCount midi_thru;
+                       ChanCount midi_bypass;
+                       ChanMapping input_map (pi->input_map ());
+                       if (pi->has_midi_thru ()) {
+                                midi_thru.set(DataType::MIDI, 1);
+                                input_map.set (DataType::MIDI, 0, 0);
+                       }
+                       if (pi->has_midi_bypass ()) {
+                                midi_bypass.set(DataType::MIDI, 1);
+                       }
+
+                       (*i)->input_icon.set_ports (sinks * count + midi_thru);
+                       (*i)->output_icon.set_ports (sources * count + midi_bypass);
+
+                       (*i)->routing_icon.set (
+                                       in, out,
+                                       sinks * count + midi_thru,
+                                       sources * count + midi_bypass,
+                                       input_map,
+                                       pi->output_map (),
+                                       pi->thru_map ());
+
+                       if (next != children.end()) {
+                               (*next)->routing_icon.set_feed (out, sources * count + midi_bypass, pi->output_map (), pi->thru_map ());
+                       }
+
+               } else {
+                       (*i)->input_icon.set_ports (p->input_streams());
+                       (*i)->output_icon.set_ports (p->output_streams());
+                       ChanMapping inmap (p->input_streams ());
+                       ChanMapping outmap (p->input_streams ());
+                       ChanMapping thrumap;
+                       (*i)->routing_icon.set (
+                                       p->input_streams(),
+                                       p->output_streams(),
+                                       p->input_streams(),
+                                       p->output_streams(),
+                                       inmap, outmap, thrumap);
+
+                       if (next != children.end()) {
+                               (*next)->routing_icon.set_feed (p->output_streams(),  p->output_streams(), outmap, thrumap);
+                       }
+               }
+
+               if (i == children.begin()) {
+                       (*i)->routing_icon.unset_feed ();
+               }
+       }
+
+       for (list<ProcessorEntry*>::iterator i = children.begin(); i != children.end(); ++i) {
+               if ((*i)->routing_icon.identity ()) {
+                       (*i)->routing_icon.hide();
+                       if (i == children.begin()) {
+                               (*i)->input_icon.show();
+                       } else {
+                               (*i)->input_icon.hide();
+                       }
+               } else {
+                       (*i)->routing_icon.show();
+                       (*i)->routing_icon.queue_draw();
+                       (*i)->input_icon.show();
+               }
+
+               list<ProcessorEntry*>::iterator next = i;
+               if (++next == children.end()) {
+                       // show additional wires if outputs of last processor are not an identity map.
+                       if ((*i)->routing_icon.out_identity ()) {
+                               (*i)->output_routing_icon.hide();
+                       } else {
+                               (*i)->output_routing_icon.copy_state ((*i)->routing_icon);
+                               (*i)->output_routing_icon.show();
+                       }
+               } else {
+                       (*i)->output_routing_icon.hide();
+               }
+       }
+}
+
 void
 ProcessorBox::setup_entry_positions ()
 {
@@ -2495,6 +2738,7 @@ ProcessorBox::setup_entry_positions ()
                        }
                }
        }
+       setup_routing_feeds ();
 }
 
 void
@@ -3224,6 +3468,10 @@ ProcessorBox::register_actions ()
        myactions.register_action (processor_box_actions, X_("ab_plugins"), _("A/B Plugins"),
                        sigc::ptr_fun (ProcessorBox::rb_ab_plugins));
 
+       manage_pins_action = myactions.register_action (
+               processor_box_actions, X_("manage-pins"), _("Pin Connections..."),
+               sigc::ptr_fun (ProcessorBox::rb_manage_pins));
+
        /* show editors */
        edit_action = myactions.register_action (
                processor_box_actions, X_("edit"), _("Edit..."),
@@ -3256,6 +3504,15 @@ ProcessorBox::rb_ab_plugins ()
        _current_processor_box->ab_plugins ();
 }
 
+void
+ProcessorBox::rb_manage_pins ()
+{
+       if (_current_processor_box == 0) {
+               return;
+       }
+
+       _current_processor_box->for_selected_processors (&ProcessorBox::manage_pins);
+}
 void
 ProcessorBox::rb_choose_plugin ()
 {
@@ -3485,6 +3742,20 @@ ProcessorBox::generic_edit_processor (boost::shared_ptr<Processor> processor)
        }
 }
 
+void
+ProcessorBox::manage_pins (boost::shared_ptr<Processor> processor)
+{
+       if (!processor) {
+               return;
+       }
+       PluginPinWindowProxy* proxy = processor->pinmgr_proxy ();
+       if (proxy) {
+               proxy->get (true);
+               proxy->present();
+       }
+}
+
+
 void
 ProcessorBox::route_property_changed (const PropertyChange& what_changed)
 {
@@ -3746,7 +4017,7 @@ ProcessorWindowProxy::get (bool create)
                        setup ();
                }
        }
-
+       _window->show_all ();
        return _window;
 }
 
@@ -3765,6 +4036,64 @@ ProcessorWindowProxy::show_the_right_window ()
        toggle ();
 }
 
+
+PluginPinWindowProxy::PluginPinWindowProxy(std::string const &name, boost::weak_ptr<ARDOUR::Processor> processor)
+       : WM::ProxyBase (name, string())
+       , _processor (processor)
+{
+       boost::shared_ptr<Processor> p = _processor.lock ();
+       if (!p) {
+               return;
+       }
+       p->DropReferences.connect (going_away_connection, MISSING_INVALIDATOR, boost::bind (&PluginPinWindowProxy::processor_going_away, this), gui_context());
+}
+
+PluginPinWindowProxy::~PluginPinWindowProxy()
+{
+       _window = 0;
+}
+
+ARDOUR::SessionHandlePtr*
+PluginPinWindowProxy::session_handle ()
+{
+       ArdourWindow* aw = dynamic_cast<ArdourWindow*> (_window);
+       if (aw) { return aw; }
+       return 0;
+}
+
+Gtk::Window*
+PluginPinWindowProxy::get (bool create)
+{
+       boost::shared_ptr<Processor> p = _processor.lock ();
+       boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (p);
+       if (!p || !pi) {
+               return 0;
+       }
+
+       if (!_window) {
+               if (!create) {
+                       return 0;
+               }
+               _window = new PluginPinDialog (pi);
+               ArdourWindow* aw = dynamic_cast<ArdourWindow*> (_window);
+               if (aw) {
+                       aw->set_session (_session);
+               }
+       }
+
+       _window->show_all ();
+       return _window;
+}
+
+void
+PluginPinWindowProxy::processor_going_away ()
+{
+       delete _window;
+       _window = 0;
+       WM::Manager::instance().remove (this);
+       going_away_connection.disconnect();
+}
+
 void
 ProcessorBox::load_bindings ()
 {