inline void SDLFillRectangle(Bitmap *, int, int, int, int, unsigned int);
inline void SDLDrawSimpleLine(Bitmap *, int, int, int, int, unsigned int);
inline void SDLDrawLine(Bitmap *, int, int, int, int, Uint32);
+inline Pixel SDLGetPixel(Bitmap *, int, int);
Bitmap *SDLLoadImage(char *);