////  Created by Bradley Austin Davis on 2015/10/25//  Copyright 2015 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #include <mutex> #include <QtCore/QObject>#include <QtCore/QtPlugin>#include <QtCore/QStringList> #include <plugins/RuntimePlugin.h>#include <plugins/DisplayPlugin.h> #include "OculusLegacyDisplayPlugin.h" class OculusProvider : public QObject, public DisplayProvider{    Q_OBJECT    Q_PLUGIN_METADATA(IID DisplayProvider_iid FILE "oculus.json")    Q_INTERFACES(DisplayProvider) public:    OculusProvider(QObject* parent = nullptr) : QObject(parent) {}    virtual ~OculusProvider() {}     virtual DisplayPluginList getDisplayPlugins() override {        static std::once_flag once;        std::call_once(once, [&] {            DisplayPluginPointer plugin(new OculusLegacyDisplayPlugin());            if (plugin->isSupported()) {                _displayPlugins.push_back(plugin);            }        });        return _displayPlugins;    }     virtual void destroyDisplayPlugins() override {        _displayPlugins.clear();    } private:    DisplayPluginList _displayPlugins;}; #include "OculusProvider.moc"