Implement IComponent::setIoMode()

src/common/logging/vst3.cpp

@@ -72,6 +72,14 @@ void Vst3Logger::log_request(bool is_host_vst,
     });
 }
 
+void Vst3Logger::log_request(bool is_host_vst,
+                             const YaComponent::SetIoMode& request) {
+    log_request_base(is_host_vst, [&](auto& message) {
+        message << "<IComponent* #" << request.instance_id << ">::setIoMode("
+                << request.mode << ")";
+    });
+}
+
 void Vst3Logger::log_request(bool is_host_vst,
                              const YaPluginFactory::Construct&) {
     log_request_base(is_host_vst,

src/common/logging/vst3.h

@@ -60,6 +60,7 @@ class Vst3Logger {
     void log_request(bool is_host_vst, const YaComponent::Destruct&);
     void log_request(bool is_host_vst, const YaComponent::Initialize&);
     void log_request(bool is_host_vst, const YaComponent::Terminate&);
+    void log_request(bool is_host_vst, const YaComponent::SetIoMode&);
     void log_request(bool is_host_vst, const YaPluginFactory::Construct&);
     void log_request(bool is_host_vst, const YaPluginFactory::SetHostContext&);
     void log_request(bool is_host_vst, const WantsConfiguration&);

src/common/serialization/vst3.h

@@ -61,6 +61,7 @@ using ControlRequest = std::variant<YaComponent::Construct,
                                     YaComponent::Destruct,
                                     YaComponent::Initialize,
                                     YaComponent::Terminate,
+                                    YaComponent::SetIoMode,
                                     YaPluginFactory::Construct,
                                     YaPluginFactory::SetHostContext>;
 

src/common/serialization/vst3/component.h

@@ -171,6 +171,25 @@ class YaComponent : public Steinberg::Vst::IComponent {
 
     // From `IComponent`
     tresult PLUGIN_API getControllerClassId(Steinberg::TUID classId) override;
+
+    /**
+     * Message to pass through a call to `IComponent::setIoMode(IoMode)` to the
+     * Wine plugin host.
+     */
+    struct SetIoMode {
+        using Response = UniversalTResult;
+
+        native_size_t instance_id;
+
+        Steinberg::Vst::IoMode mode;
+
+        template <typename S>
+        void serialize(S& s) {
+            s.value8b(instance_id);
+            s.value4b(mode);
+        }
+    };
+
     virtual tresult PLUGIN_API
     setIoMode(Steinberg::Vst::IoMode mode) override = 0;
     virtual int32 PLUGIN_API

src/plugin/bridges/vst3-impls/component.cpp

@@ -74,9 +74,10 @@ tresult PLUGIN_API YaComponentPluginImpl::terminate() {
 
 tresult PLUGIN_API
 YaComponentPluginImpl::setIoMode(Steinberg::Vst::IoMode mode) {
-    // TODO: Implement
+    return bridge
-    bridge.logger.log("TODO: IComponent::setIoMode()");
+        .send_message(YaComponent::SetIoMode{
-    return Steinberg::kNotImplemented;
+            .instance_id = arguments.instance_id, .mode = mode})
+        .native();
 }
 
 int32 PLUGIN_API

src/wine-host/bridges/vst3.cpp

@@ -107,6 +107,11 @@ void Vst3Bridge::run() {
                 -> YaComponent::Terminate::Response {
                 return component_instances[request.instance_id]->terminate();
             },
+            [&](const YaComponent::SetIoMode& request)
+                -> YaComponent::SetIoMode::Response {
+                return component_instances[request.instance_id]->setIoMode(
+                    request.mode);
+            },
             [&](const YaPluginFactory::Construct&)
                 -> YaPluginFactory::Construct::Response {
                 return YaPluginFactory::ConstructArgs(