/* SDL function definitions */
+boolean SDLSetNativeSurface(SDL_Surface **);
+SDL_Surface *SDLGetNativeSurface(SDL_Surface *);
+
#if defined(TARGET_SDL2)
SDL_Surface *SDL_DisplayFormat(SDL_Surface *);
void SDLSetWindowScaling(int);
void SDLInvertArea(Bitmap *, int, int, int, int, Uint32);
void SDLCopyInverseMasked(Bitmap *, Bitmap *, int, int, int, int, int, int);
+#if 1
+Bitmap *SDLZoomBitmap(Bitmap *, int, int);
+#else
void SDLZoomBitmap(Bitmap *, Bitmap *);
+#endif
Bitmap *SDLLoadImage(char *);