update osx project

src/app.cpp

@@ -24,6 +24,20 @@ void destroy_window();
 
 App* App::I = nullptr; // singleton
 
+std::deque<std::packaged_task<void()>> App::render_tasklist;
+std::mutex App::render_task_mutex;
+std::condition_variable App::render_cv;
+std::thread App::render_thread;
+std::thread::id App::render_thread_id;
+bool App::render_running = false;
+
+std::deque<std::packaged_task<void()>> App::ui_tasklist;
+std::mutex App::ui_task_mutex;
+std::condition_variable App::ui_cv;
+std::thread App::ui_thread;
+std::thread::id App::ui_thread_id;
+bool App::ui_running = false;
+
 void App::create()
 {
     width = 1920/2;