Implement IComponent::getRoutingInfo()

src/common/logging/vst3.cpp

@@ -99,6 +99,19 @@ void Vst3Logger::log_request(bool is_host_vst,
     });
 }
 
+void Vst3Logger::log_request(bool is_host_vst,
+                             const YaComponent::GetRoutingInfo& request) {
+    log_request_base(is_host_vst, [&](auto& message) {
+        message << "<IComponent* #" << request.instance_id
+                << ">::getRoutingInfo(inInfo = <RoutingInfo& for bus "
+                << request.in_info.busIndex << " and channel "
+                << request.in_info.channel
+                << ">, outInfo = <RoutingInfo& for bus "
+                << request.out_info.busIndex << " and channel "
+                << request.out_info.channel << ">)";
+    });
+}
+
 void Vst3Logger::log_request(bool is_host_vst,
                              const YaPluginFactory::Construct&) {
     log_request_base(is_host_vst,
@@ -147,6 +160,22 @@ void Vst3Logger::log_response(bool is_host_vst,
     });
 }
 
+void Vst3Logger::log_response(
+    bool is_host_vst,
+    const YaComponent::GetRoutingInfoResponse& response) {
+    log_response_base(is_host_vst, [&](auto& message) {
+        message << response.result.string();
+        if (response.result.native() == Steinberg::kResultOk) {
+            message << ", <RoutingInfo& for bus "
+                    << response.updated_in_info.busIndex << " and channel "
+                    << response.updated_in_info.channel
+                    << ", <RoutingInfo& for bus "
+                    << response.updated_out_info.busIndex << " and channel "
+                    << response.updated_out_info.channel << ">";
+        }
+    });
+}
+
 void Vst3Logger::log_response(bool is_host_vst,
                               const YaPluginFactory::ConstructArgs& args) {
     log_response_base(is_host_vst, [&](auto& message) {

src/common/logging/vst3.h

@@ -63,6 +63,7 @@ class Vst3Logger {
     void log_request(bool is_host_vst, const YaComponent::SetIoMode&);
     void log_request(bool is_host_vst, const YaComponent::GetBusCount&);
     void log_request(bool is_host_vst, const YaComponent::GetBusInfo&);
+    void log_request(bool is_host_vst, const YaComponent::GetRoutingInfo&);
     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&);
@@ -72,6 +73,8 @@ class Vst3Logger {
         bool is_host_vst,
         const std::variant<YaComponent::ConstructArgs, UniversalTResult>&);
     void log_response(bool is_host_vst, const YaComponent::GetBusInfoResponse&);
+    void log_response(bool is_host_vst,
+                      const YaComponent::GetRoutingInfoResponse&);
     void log_response(bool is_host_vst, const YaPluginFactory::ConstructArgs&);
     void log_response(bool is_host_vst, const Configuration&);
 

src/common/serialization/vst3.h

@@ -64,6 +64,7 @@ using ControlRequest = std::variant<YaComponent::Construct,
                                     YaComponent::SetIoMode,
                                     YaComponent::GetBusCount,
                                     YaComponent::GetBusInfo,
+                                    YaComponent::GetRoutingInfo,
                                     YaPluginFactory::Construct,
                                     YaPluginFactory::SetHostContext>;
 

src/common/serialization/vst3/component.h

@@ -260,6 +260,44 @@ class YaComponent : public Steinberg::Vst::IComponent {
                Steinberg::Vst::BusDirection dir,
                int32 index,
                Steinberg::Vst::BusInfo& bus /*out*/) override = 0;
+
+    /**
+     * The response code and returned routing information for a call to
+     * `IComponent::getRoutingInfo(inInfo, outInfo <out>)`.
+     */
+    struct GetRoutingInfoResponse {
+        UniversalTResult result;
+        Steinberg::Vst::RoutingInfo updated_in_info;
+        Steinberg::Vst::RoutingInfo updated_out_info;
+
+        template <typename S>
+        void serialize(S& s) {
+            s.object(result);
+            s.object(updated_in_info);
+            s.object(updated_out_info);
+        }
+    };
+
+    /**
+     * Message to pass through a call to `IComponent::getRoutingInfo(inInfo,
+     * outInfo <out>)` to the Wine plugin host.
+     */
+    struct GetRoutingInfo {
+        using Response = GetRoutingInfoResponse;
+
+        native_size_t instance_id;
+
+        Steinberg::Vst::RoutingInfo in_info;
+        Steinberg::Vst::RoutingInfo out_info;
+
+        template <typename S>
+        void serialize(S& s) {
+            s.value8b(instance_id);
+            s.object(in_info);
+            s.object(out_info);
+        }
+    };
+
     virtual tresult PLUGIN_API
     getRoutingInfo(Steinberg::Vst::RoutingInfo& inInfo,
                    Steinberg::Vst::RoutingInfo& outInfo /*out*/) override = 0;
@@ -297,5 +335,12 @@ void serialize(S& s, Steinberg::Vst::BusInfo& info) {
     s.value4b(info.busType);
     s.value4b(info.flags);
 }
+
+template <typename S>
+void serialize(S& s, Steinberg::Vst::RoutingInfo& info) {
+    s.value4b(info.mediaType);
+    s.value4b(info.busIndex);
+    s.value4b(info.channel);
+}
 }  // namespace Vst
 }  // namespace Steinberg

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

@@ -108,9 +108,14 @@ YaComponentPluginImpl::getBusInfo(Steinberg::Vst::MediaType type,
 tresult PLUGIN_API YaComponentPluginImpl::getRoutingInfo(
     Steinberg::Vst::RoutingInfo& inInfo,
     Steinberg::Vst::RoutingInfo& outInfo /*out*/) {
-    // TODO: Implement
-    bridge.logger.log("TODO: IComponent::getRoutingInfo()");
-    return Steinberg::kNotImplemented;
+    const GetRoutingInfoResponse response = bridge.send_message(
+        YaComponent::GetRoutingInfo{.instance_id = arguments.instance_id,
+                                    .in_info = inInfo,
+                                    .out_info = outInfo});
+
+    inInfo = response.updated_in_info;
+    outInfo = response.updated_out_info;
+    return response.result.native();
 }
 
 tresult PLUGIN_API

src/wine-host/bridges/vst3.cpp

@@ -130,6 +130,18 @@ void Vst3Bridge::run() {
                 return YaComponent::GetBusInfoResponse{
                     .result = result, .updated_bus = request.bus};
             },
+            [&](YaComponent::GetRoutingInfo& request)
+                -> YaComponent::GetRoutingInfo::Response {
+                const tresult result =
+                    component_instances[request.instance_id]
+                        .component->getRoutingInfo(request.in_info,
+                                                   request.out_info);
+
+                return YaComponent::GetRoutingInfoResponse{
+                    .result = result,
+                    .updated_in_info = request.in_info,
+                    .updated_out_info = request.out_info};
+            },
             [&](const YaPluginFactory::Construct&)
                 -> YaPluginFactory::Construct::Response {
                 return YaPluginFactory::ConstructArgs(