extern QGLWidget *global_share_widget;
QSurface *create_surface(const QSurfaceFormat &format);
QSurface *create_surface_with_same_format(const QSurface *surface);
extern QGLWidget *global_share_widget;
QSurface *create_surface(const QSurfaceFormat &format);
QSurface *create_surface_with_same_format(const QSurface *surface);