-inline void SDLInitVideoDisplay(void);
-inline void SDLInitVideoBuffer(DrawBuffer *, DrawWindow *, boolean);
-inline boolean SDLSetVideoMode(DrawBuffer *, boolean);
-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);
+void SDLInitVideoDisplay(void);
+void SDLInitVideoBuffer(DrawBuffer **, DrawWindow **, boolean);
+boolean SDLSetVideoMode(DrawBuffer **, boolean);
+void SDLCreateBitmapContent(Bitmap *, int, int, int);
+void SDLFreeBitmapPointers(Bitmap *);
+void SDLCopyArea(Bitmap *, 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));
+void SDLDrawSimpleLine(Bitmap *, int, int, int, int, Uint32);
+void SDLDrawLine(Bitmap *, int, int, int, int, Uint32);
+Pixel SDLGetPixel(Bitmap *, int, int);
+void SDLPutPixel(Bitmap *, int, int, Pixel);
+
+void SDLInvertArea(Bitmap *, int, int, int, int, Uint32);
+void SDLCopyInverseMasked(Bitmap *, Bitmap *, int, int, int, int, int, int);
+
+void SDLZoomBitmap(Bitmap *, Bitmap *);
+
+Bitmap *SDLLoadImage(char *);
+
+void SDLSetMouseCursor(struct MouseCursorInfo *);
+
+void SDLOpenAudio(void);
+void SDLCloseAudio(void);
+
+void SDLNextEvent(Event *);
+void SDLHandleWindowManagerEvent(Event *);