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add StartTouch and EndTouch signals to Plugin class; make PluginInsert handle these signals and mark the start end of touch/gestures for a given AutomationControl; net result is that touch automation now works for AudioUnit plugins, at least those whose GUIs send kAudioUnitEvent_{Begin,End}ParameterGesture events

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git-svn-id: svn://localhost/ardour2/branches/3.0@13028 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis 2012-07-11 15:31:02 +00:00
parent a782dd36e7
commit 8d6d3c309d
4 changed files with 79 additions and 5 deletions
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3
libs/ardour/ardour/plugin.h
View file

@ -255,6 +255,9 @@ class Plugin : public PBD::StatefulDestructible, public Latent
void set_cycles (uint32_t c) { _cycles = c; }
cycles_t cycles() const { return _cycles; }
PBD::Signal1<void,uint32_t> StartTouch;
PBD::Signal1<void,uint32_t> EndTouch;
protected:
friend class PluginInsert;

6
libs/ardour/ardour/plugin_insert.h
View file

@ -138,6 +138,9 @@ class PluginInsert : public Processor
Hide, ///< we `hide' some of the plugin's inputs by feeding them silence
};
PBD::Signal1<void,uint32_t> StartTouch;
PBD::Signal1<void,uint32_t> EndTouch;
private:
/* disallow copy construction */
PluginInsert (const PluginInsert&);
@ -185,6 +188,9 @@ class PluginInsert : public Processor
boost::shared_ptr<Plugin> plugin_factory (boost::shared_ptr<Plugin>);
void add_plugin (boost::shared_ptr<Plugin>);
void start_touch (uint32_t param_id);
void end_touch (uint32_t param_id);
};
} // namespace ARDOUR

52
libs/ardour/audio_unit.cc
View file

@ -2753,6 +2753,26 @@ AUPlugin::listen_to_parameter (uint32_t param_id)
return -1;
}
event.mEventType = kAudioUnitEvent_BeginParameterChangeGesture;
event.mArgument.mParameter.mAudioUnit = unit->AU();
event.mArgument.mParameter.mParameterID = descriptors[param_id].id;
event.mArgument.mParameter.mScope = descriptors[param_id].scope;
event.mArgument.mParameter.mElement = descriptors[param_id].element;
if (AUEventListenerAddEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) {
return -1;
}
event.mEventType = kAudioUnitEvent_EndParameterChangeGesture;
event.mArgument.mParameter.mAudioUnit = unit->AU();
event.mArgument.mParameter.mParameterID = descriptors[param_id].id;
event.mArgument.mParameter.mScope = descriptors[param_id].scope;
event.mArgument.mParameter.mElement = descriptors[param_id].element;
if (AUEventListenerAddEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) {
return -1;
}
return 0;
}
@ -2775,6 +2795,26 @@ AUPlugin::end_listen_to_parameter (uint32_t param_id)
return -1;
}
event.mEventType = kAudioUnitEvent_BeginParameterChangeGesture;
event.mArgument.mParameter.mAudioUnit = unit->AU();
event.mArgument.mParameter.mParameterID = descriptors[param_id].id;
event.mArgument.mParameter.mScope = descriptors[param_id].scope;
event.mArgument.mParameter.mElement = descriptors[param_id].element;
if (AUEventListenerRemoveEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) {
return -1;
}
event.mEventType = kAudioUnitEvent_EndParameterChangeGesture;
event.mArgument.mParameter.mAudioUnit = unit->AU();
event.mArgument.mParameter.mParameterID = descriptors[param_id].id;
event.mArgument.mParameter.mScope = descriptors[param_id].scope;
event.mArgument.mParameter.mElement = descriptors[param_id].element;
if (AUEventListenerRemoveEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) {
return -1;
}
return 0;
}
@ -2789,17 +2829,19 @@ AUPlugin::parameter_change_listener (void* /*arg*/, void* /*src*/, const AudioUn
{
ParameterMap::iterator i;
if ((i = parameter_map.find (event->mArgument.mParameter.mParameterID)) == parameter_map.end()) {
return;
}
switch (event->mEventType) {
case kAudioUnitEvent_BeginParameterChangeGesture:
StartTouch (i->second);
break;
case kAudioUnitEvent_EndParameterChangeGesture:
EndTouch (i->second);
break;
case kAudioUnitEvent_ParameterValueChange:
i = parameter_map.find (event->mArgument.mParameter.mParameterID);
if (i != parameter_map.end()) {
ParameterChanged (i->second, new_value);
}
ParameterChanged (i->second, new_value);
break;
default:
break;

23
libs/ardour/plugin_insert.cc
View file

@ -1263,7 +1263,12 @@ PluginInsert::add_plugin (boost::shared_ptr<Plugin> plugin)
plugin->set_insert_info (this);
if (_plugins.empty()) {
/* first (and probably only) plugin instance - connect to relevant signals
*/
plugin->ParameterChanged.connect_same_thread (*this, boost::bind (&PluginInsert::parameter_changed, this, _1, _2));
plugin->StartTouch.connect_same_thread (*this, boost::bind (&PluginInsert::start_touch, this, _1));
plugin->EndTouch.connect_same_thread (*this, boost::bind (&PluginInsert::end_touch, this, _1));
}
_plugins.push_back (plugin);
@ -1292,3 +1297,21 @@ PluginInsert::monitoring_changed ()
(*i)->monitoring_changed ();
}
}
void
PluginInsert::start_touch (uint32_t param_id)
{
boost::shared_ptr<AutomationControl> ac = automation_control (Evoral::Parameter (PluginAutomation, 0, param_id));
if (ac) {
ac->start_touch (session().audible_frame());
}
}
void
PluginInsert::end_touch (uint32_t param_id)
{
boost::shared_ptr<AutomationControl> ac = automation_control (Evoral::Parameter (PluginAutomation, 0, param_id));
if (ac) {
ac->stop_touch (true, session().audible_frame());
}
}