inline void SDLCopyArea(Bitmap, Bitmap, int, int, int, int, int, int, int);
inline void SDLFillRectangle(Bitmap, int, int, int, int, unsigned int);
inline void SDLDrawSimpleLine(SDL_Surface *, int, int, int, int, unsigned int);
inline void SDLCopyArea(Bitmap, Bitmap, int, int, int, int, int, int, int);
inline void SDLFillRectangle(Bitmap, int, int, int, int, unsigned int);
inline void SDLDrawSimpleLine(SDL_Surface *, int, int, int, int, unsigned int);