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VST3: implement optional IEditController interfaces

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This commit is contained in:
Robin Gareus 2020-10-08 03:05:09 +02:00
parent fa3051fb24
commit 9419d6f76f
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
3 changed files with 54 additions and 3 deletions
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7
libs/ardour/ardour/vst3_plugin.h
View File

@ -50,6 +50,7 @@ class LIBARDOUR_API VST3PI
: public Vst::IComponentHandler
, public Vst::IComponentHandler2
, public Vst::IConnectionPoint
, public Vst::IUnitHandler
, public IPlugFrame
{
public:
@ -76,6 +77,10 @@ public:
/* IPlugFrame */
tresult PLUGIN_API resizeView (IPlugView* view, ViewRect* newSize) SMTG_OVERRIDE;
/* IUnitHandler API */
tresult PLUGIN_API notifyUnitSelection (Vst::UnitID) SMTG_OVERRIDE;
tresult PLUGIN_API notifyProgramListChange (Vst::ProgramListID, int32) SMTG_OVERRIDE;
/* GUI */
bool has_editor () const;
IPlugView* view ();
@ -128,7 +133,7 @@ public:
std::string format_parameter (uint32_t p) const;
Vst::ParamID index_to_id (uint32_t) const;
enum ParameterChange { BeginGesture, EndGesture , ValueChange, InternalChange };
enum ParameterChange { BeginGesture, EndGesture , ValueChange, InternalChange, PresetChange };
PBD::Signal3<void, ParameterChange, uint32_t, float> OnParameterChange;
/* API for Ardour -- Setup/Processing */

6
libs/ardour/vst3_host.cc
View File

@ -43,6 +43,8 @@ DEF_CLASS_IID (Vst::IComponentHandler)
DEF_CLASS_IID (Vst::IComponentHandler2)
DEF_CLASS_IID (Vst::IConnectionPoint)
DEF_CLASS_IID (Vst::IEditController)
DEF_CLASS_IID (Vst::IEditController2)
DEF_CLASS_IID (Vst::IEditControllerHostEditing)
DEF_CLASS_IID (Vst::IEventList)
DEF_CLASS_IID (Vst::IHostApplication)
DEF_CLASS_IID (Vst::IMessage)
@ -291,10 +293,10 @@ PlugInterfaceSupport::PlugInterfaceSupport ()
//---VST 3.0.1--------------------------------
addPlugInterfaceSupported (IMidiMapping::iid);
#if 0
//---VST 3.1----------------------------------
addPlugInterfaceSupported (IEditController2::iid);
#if 0
//---VST 3.0.2--------------------------------
addPlugInterfaceSupported (IParameterFinder::iid);
@ -304,7 +306,9 @@ PlugInterfaceSupport::PlugInterfaceSupport ()
//---VST 3.5----------------------------------
addPlugInterfaceSupported (IKeyswitchController::iid);
addPlugInterfaceSupported (IContextMenuTarget::iid);
#endif
addPlugInterfaceSupported (IEditControllerHostEditing::iid);
#if 0
addPlugInterfaceSupported (IXmlRepresentationController::iid);
addPlugInterfaceSupported (INoteExpressionController::iid);

44
libs/ardour/vst3_plugin.cc
View File

@ -108,6 +108,9 @@ VST3Plugin::parameter_change_handler (VST3PI::ParameterChange t, uint32_t param,
case VST3PI::InternalChange:
Plugin::state_changed ();
break;
case VST3PI::PresetChange:
PresetsChanged (unique_id (), this, false); /* EMIT SIGNAL */
break;
}
}
@ -1013,6 +1016,13 @@ VST3PI::VST3PI (boost::shared_ptr<ARDOUR::VST3PluginModule> m, std::string uniqu
memset (&_program_change_port, 0, sizeof (_program_change_port));
_program_change_port.id = Vst::kNoParamId;
FUnknownPtr<Vst::IEditControllerHostEditing> host_editing (_controller);
FUnknownPtr<Vst::IEditController2> controller2 (_controller);
if (controller2) {
controller2->setKnobMode (Vst::kRelativCircularMode);
}
int32 n_params = _controller->getParameterCount ();
for (int32 i = 0; i < n_params; ++i) {
Vst::ParameterInfo pi;
@ -1023,7 +1033,8 @@ VST3PI::VST3PI (boost::shared_ptr<ARDOUR::VST3PluginModule> m, std::string uniqu
_program_change_port = pi;
continue;
}
if (0 == (pi.flags & Vst::ParameterInfo::kCanAutomate)) {
/* allow non-automatable parameters IFF IEditControllerHostEditing is available */
if (0 == (pi.flags & Vst::ParameterInfo::kCanAutomate) && !host_editing) {
/* but allow read-only, not automatable params (ctrl outputs) */
if (0 == (pi.flags & Vst::ParameterInfo::kIsReadOnly)) {
continue;
@ -1278,6 +1289,19 @@ VST3PI::restartComponent (int32 flags)
return kResultOk;
}
tresult
VST3PI::notifyUnitSelection (Vst::UnitID unitId)
{
return kResultFalse;
}
tresult
VST3PI::notifyProgramListChange (Vst::ProgramListID, int32)
{
OnParameterChange (PresetChange, 0, 0); /* EMIT SIGNAL */
return kResultOk;
}
tresult
VST3PI::performEdit (Vst::ParamID id, Vst::ParamValue v)
{
@ -1679,13 +1703,22 @@ void
VST3PI::update_contoller_param ()
{
/* GUI thread */
FUnknownPtr<Vst::IEditControllerHostEditing> host_editing (_controller);
std::map<uint32_t, Vst::ParamID>::const_iterator i;
for (i = _ctrl_index_id.begin (); i != _ctrl_index_id.end (); ++i) {
if (!_update_ctrl[i->first]) {
continue;
}
_update_ctrl[i->first] = false;
if (!parameter_is_automatable (i->first) && !parameter_is_readonly (i->first)) {
assert (host_editing);
host_editing->beginEditFromHost (i->second);
}
_controller->setParamNormalized (i->second, _shadow_data[i->first]);
if (!parameter_is_automatable (i->first) && !parameter_is_readonly (i->first)) {
host_editing->endEditFromHost (i->second);
}
}
}
@ -1716,7 +1749,16 @@ VST3PI::get_parameter (uint32_t p) const
Vst::ParamID id = index_to_id (p);
if (_update_ctrl[p]) {
_update_ctrl[p] = false;
FUnknownPtr<Vst::IEditControllerHostEditing> host_editing (_controller);
if (!parameter_is_automatable (p) && !parameter_is_readonly (p)) {
assert (host_editing);
host_editing->beginEditFromHost (id);
}
_controller->setParamNormalized (id, _shadow_data[p]); // GUI thread only
if (!parameter_is_automatable (p) && !parameter_is_readonly (p)) {
host_editing->endEditFromHost (id);
}
}
return _controller->normalizedParamToPlain (id, _shadow_data[p]);
}