configurable midi audition synth

[ardour.git] / libs / ardour / auditioner.cc

diff --git a/libs/ardour/auditioner.cc b/libs/ardour/auditioner.cc
index fd640f8e3ecd7df79296653ab719d3827daeba68..3e382625a0229a54b452bb070473fbadd02acef2 100644 (file)
--- a/libs/ardour/auditioner.cc
+++ b/libs/ardour/auditioner.cc
@@ -51,6 +51,7 @@ Auditioner::Auditioner (Session& s)
        , via_monitor (false)
        , _midi_audition (false)
        , _synth_added (false)
+       , _synth_changed (false)
        , _queue_panic (false)
 {
 }
@@ -68,6 +69,21 @@ Auditioner::init ()
 
        _output->add_port ("Midiaudition", this, DataType::MIDI);
 
+       lookup_synth();
+
+       _output->changed.connect_same_thread (*this, boost::bind (&Auditioner::output_changed, this, _1, _2));
+       Config->ParameterChanged.connect_same_thread (*this, boost::bind (&Auditioner::config_changed, this, _1));
+
+       return 0;
+}
+
+Auditioner::~Auditioner ()
+{
+}
+
+void
+Auditioner::lookup_synth ()
+{
        string plugin_id = Config->get_midi_audition_synth_uri();
        boost::shared_ptr<Plugin> p;
        if (!plugin_id.empty()) {
@@ -84,14 +100,14 @@ Auditioner::init ()
        if (p) {
                asynth = boost::shared_ptr<Processor> (new PluginInsert (_session, p));
        }
-
-       _output->changed.connect_same_thread (*this, boost::bind (&Auditioner::output_changed, this, _1, _2));
-
-       return 0;
 }
 
-Auditioner::~Auditioner ()
+void
+Auditioner::config_changed (std::string p)
 {
+       if (p == "midi-audition-synth-uri") {
+               _synth_changed = true;
+       }
 }
 
 int
@@ -393,6 +409,16 @@ Auditioner::audition_region (boost::shared_ptr<Region> region)
 
                ProcessorStreams ps;
 
+               if (_synth_changed && _synth_added) {
+                       remove_processor(asynth);
+                       _synth_added = false;
+               }
+               if (_synth_changed && !_synth_added) {
+                       _synth_added = false;
+                       lookup_synth();
+               }
+
+
                if (!_synth_added && asynth) {
                        int rv = add_processor_by_index(asynth, PreFader, &ps, true);
                        if (rv) {