Implement IEditController2::setKnobMode

src/common/logging/vst3.cpp

@@ -253,6 +253,15 @@ bool Vst3Logger::log_request(bool is_host_vst,
     });
 }
 
+bool Vst3Logger::log_request(bool is_host_vst,
+                             const YaEditController2::SetKnobMode& request) {
+    return log_request_base(is_host_vst, [&](auto& message) {
+        message << request.instance_id
+                << ": IEditController2::setKnobMode(mode = " << request.mode
+                << ")";
+    });
+}
+
 bool Vst3Logger::log_request(
     bool is_host_vst,
     const YaPlugView::IsPlatformTypeSupported& request) {

src/common/logging/vst3.h

@@ -88,6 +88,7 @@ class Vst3Logger {
     bool log_request(bool is_host_vst,
                      const YaEditController::SetComponentHandler&);
     bool log_request(bool is_host_vst, const YaEditController::CreateView&);
+    bool log_request(bool is_host_vst, const YaEditController2::SetKnobMode&);
     bool log_request(bool is_host_vst,
                      const YaPlugView::IsPlatformTypeSupported&);
     bool log_request(bool is_host_vst, const YaPlugView::Attached&);

src/common/serialization/vst3.h

@@ -81,6 +81,7 @@ using ControlRequest = std::variant<Vst3PlugViewProxy::Destruct,
                                     YaEditController::SetParamNormalized,
                                     YaEditController::SetComponentHandler,
                                     YaEditController::CreateView,
+                                    YaEditController2::SetKnobMode,
                                     YaPlugView::IsPlatformTypeSupported,
                                     YaPlugView::Attached,
                                     YaPlugView::Removed,

src/common/serialization/vst3/plugin/edit-controller-2.h

@@ -61,6 +61,24 @@ class YaEditController2 : public Steinberg::Vst::IEditController2 {
 
     inline bool supported() const { return arguments.supported; }
 
+    /**
+     * Message to pass through a call to `IEditController2::setKnobMode(mode)`
+     * to the Wine plugin host.
+     */
+    struct SetKnobMode {
+        using Response = UniversalTResult;
+
+        native_size_t instance_id;
+
+        Steinberg::Vst::KnobMode mode;
+
+        template <typename S>
+        void serialize(S& s) {
+            s.value8b(instance_id);
+            s.value4b(mode);
+        }
+    };
+
     virtual tresult PLUGIN_API
     setKnobMode(Steinberg::Vst::KnobMode mode) override = 0;
     virtual tresult PLUGIN_API openHelp(TBool onlyCheck) override = 0;