func init() { cairo.XtensionRegisterRawToSurface(cairo.SurfaceTypeRecording, reviv) }
func init() { cairo.XtensionRegisterRawToSurface(cairo.SurfaceTypeSVG, cNew) }
func init() { cairo.XtensionRegisterRawToSurface(cairo.SurfaceTypeScript, revivSurf) }