-inline void SDLDrawSimpleLine(SDL_Surface *, int, int, int, int, unsigned int);
-inline void SDLDrawLine(SDL_Surface *, int, int, int, int, Uint32);
-/* functions from SGE library */
-void sge_Line(SDL_Surface *, Sint16, Sint16, Sint16, Sint16, Uint32);
+inline void SDLDrawSimpleLine(Bitmap *, int, int, int, int, unsigned int);
+inline void SDLDrawLine(Bitmap *, int, int, int, int, Uint32);