void SDLCreateBitmapContent(Bitmap *, int, int, int);
void SDLFreeBitmapPointers(Bitmap *);
void SDLCopyArea(Bitmap *, Bitmap *, int, int, int, int, int, int, int);
+void SDLBlitTexture(Bitmap *, int, int, int, int, int, int, int);
void SDLFillRectangle(Bitmap *, int, int, int, int, Uint32);
void SDLFadeRectangle(Bitmap *, int, int, int, int, int, int, int,
void (*draw_border_function)(void));