Implement IPlugView::setFrame()

src/common/logging/vst3.cpp

@@ -318,6 +318,14 @@ bool Vst3Logger::log_request(bool is_host_vst,
     });
 }
 
+bool Vst3Logger::log_request(bool is_host_vst,
+                             const YaPlugView::SetFrame& request) {
+    return log_request_base(is_host_vst, [&](auto& message) {
+        message << request.owner_instance_id
+                << ": IPlugView::setFrame(frame = <IPlugFrame*>)";
+    });
+}
+
 bool Vst3Logger::log_request(bool is_host_vst,
                              const YaPluginBase::Initialize& request) {
     return log_request_base(is_host_vst, [&](auto& message) {

src/common/logging/vst3.h

@@ -97,6 +97,7 @@ class Vst3Logger {
     bool log_request(bool is_host_vst, const YaPlugView::GetSize&);
     bool log_request(bool is_host_vst, const YaPlugView::OnSize&);
     bool log_request(bool is_host_vst, const YaPlugView::OnFocus&);
+    bool log_request(bool is_host_vst, const YaPlugView::SetFrame&);
     bool log_request(bool is_host_vst, const YaPluginBase::Initialize&);
     bool log_request(bool is_host_vst, const YaPluginBase::Terminate&);
     bool log_request(bool is_host_vst, const YaPluginFactory::Construct&);

src/common/serialization/vst3.h

@@ -88,6 +88,7 @@ using ControlRequest = std::variant<Vst3PlugViewProxy::Destruct,
                                     YaPlugView::GetSize,
                                     YaPlugView::OnSize,
                                     YaPlugView::OnFocus,
+                                    YaPlugView::SetFrame,
                                     YaPluginBase::Initialize,
                                     YaPluginBase::Terminate,
                                     YaPluginFactory::Construct,

src/common/serialization/vst3/plug-view/plug-view.h

@@ -20,6 +20,7 @@
 
 #include "../../common.h"
 #include "../base.h"
+#include "../plug-frame-proxy.h"
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
@@ -276,6 +277,29 @@ class YaPlugView : public Steinberg::IPlugView {
     };
 
     virtual tresult PLUGIN_API onFocus(TBool state) override = 0;
+
+    /**
+     * Message to pass through a call to `IPlugView::setFrame()` to the Wine
+     * plugin host. We will read what interfaces the passed `IPlugFrame` object
+     * implements so we can then create a proxy object on the Wine side that the
+     * plugin can use to make callbacks with. The lifetime of this
+     * `Vst3PlugFrameProxy` object should be bound to the `IPlugView` we are
+     * creating it for.
+     */
+    struct SetFrame {
+        using Response = UniversalTResult;
+
+        native_size_t owner_instance_id;
+
+        Vst3PlugFrameProxy::ConstructArgs plug_frame_args;
+
+        template <typename S>
+        void serialize(S& s) {
+            s.value8b(owner_instance_id);
+            s.object(plug_frame_args);
+        }
+    };
+
     virtual tresult PLUGIN_API
     setFrame(Steinberg::IPlugFrame* frame) override = 0;
     virtual tresult PLUGIN_API canResize() override = 0;