diff -puriN SDL_perl-1.20.3/SDL_perl.xs sdlperl-1.20.3/SDL_perl.xs
--- SDL_perl-1.20.3/SDL_perl.xs	2003-03-27 11:17:23 +0100
+++ sdlperl-1.20.3/SDL_perl.xs	2006-03-01 00:42:56 +0100
@@ -241,6 +241,23 @@ XS(boot_SDL_perl)
 
 }
 
+MODULE = SDL::sdlpl             PACKAGE = SDL::sdlpl
+PROTOTYPES : DISABLE
+
+SDL_Surface *
+sdl_display_format ( surface )
+	SDL_Surface *surface
+	CODE:
+		RETVAL = SDL_DisplayFormat(surface);
+	OUTPUT:
+		RETVAL
+
+void
+sdl_free_surface ( surface )
+	SDL_Surface *surface
+	CODE:
+		SDL_FreeSurface(surface);
+
 MODULE = SDL_perl	PACKAGE = SDL
 PROTOTYPES : DISABLE