Function initialize

distrho/src/DistrhoPluginVST3.cpp:3642–3691

    // v3_plugin_base

    static v3_result V3_API initialize(void* const self, v3_funknown** const context)
    {
        dpf_edit_controller* const controller = *static_cast<dpf_edit_controller**>(self);

        // check if already initialized
       #if DPF_VST3_USES_SEPARATE_CONTROLLER
        DISTRHO_SAFE_ASSERT_RETURN(controller->vst3 == nullptr, V3_INVALID_ARG);
       #else
        DISTRHO_SAFE_ASSERT_RETURN(! controller->initialized, V3_INVALID_ARG);
       #endif

        // query for host application
        v3_host_application** hostApplication = nullptr;
        if (context != nullptr)
            v3_cpp_obj_query_interface(context, v3_host_application_iid, &hostApplication);

        d_debug("dpf_edit_controller::initialize => %p %p | host %p", self, context, hostApplication);

        // save it for later so we can unref it
        controller->hostApplicationFromInitialize = hostApplication;

       #if DPF_VST3_USES_SEPARATE_CONTROLLER
        // provide the factory application to the plugin if this new one is missing
        if (hostApplication == nullptr)
            hostApplication = controller->hostApplicationFromFactory;

        // default early values
        if (d_nextBufferSize == 0)
            d_nextBufferSize = 1024;
        if (d_nextSampleRate <= 0.0)
            d_nextSampleRate = 44100.0;

        d_nextCanRequestParameterValueChanges = true;

        // create the actual plugin
        controller->vst3 = new PluginVst3(hostApplication, false);

        // set connection point if needed
        if (dpf_comp2ctrl_connection_point* const point = controller->connectionComp2Ctrl)
        {
            if (point->other != nullptr)
                controller->vst3->comp2ctrl_connect(point->other);
        }
       #else
        // mark as initialized
        controller->initialized = true;
       #endif

        return V3_OK;
    }

    static v3_result V3_API terminate(void* self)
    {