-
-/* SDL function definitions */
-
-inline void SDLInitVideoDisplay(void);
-inline void SDLInitVideoBuffer(DrawBuffer **, DrawWindow **, boolean);
-inline boolean SDLSetVideoMode(DrawBuffer **, boolean);
-inline void SDLCreateBitmapContent(Bitmap *, int, int, int);
-inline void SDLFreeBitmapPointers(Bitmap *);
-inline void SDLCopyArea(Bitmap *, Bitmap *, int, int, int, int, int, int, int);
-inline void SDLFillRectangle(Bitmap *, int, int, int, int, Uint32);
-inline void SDLDrawSimpleLine(Bitmap *, int, int, int, int, Uint32);
-inline void SDLDrawLine(Bitmap *, int, int, int, int, Uint32);
-inline Pixel SDLGetPixel(Bitmap *, int, int);
-inline void SDLPutPixel(Bitmap *, int, int, Pixel);
-
-inline void SDLInvertArea(Bitmap *, int, int, int, int, Uint32);
-inline void SDLCopyInverseMasked(Bitmap *, Bitmap *, int, int, int, int,
- int, int);
-
-void SDLZoomBitmap(Bitmap *, Bitmap *);
+// this only contains "valid" key modifiers (and ignores keys like "NumLock")
+#define KMOD_Valid (KMOD_Shift | \
+ KMOD_Control | \
+ KMOD_Meta | \
+ KMOD_Alt)
+
+#define KMOD_TextInput (KMOD_Shift | KMOD_Alt_R)
+
+
+// SDL function definitions
+
+void SDLSetAlpha(SDL_Surface *, boolean, int);
+const char *SDLGetRendererName(void);
+boolean SDLSetNativeSurface(SDL_Surface **);
+SDL_Surface *SDLGetNativeSurface(SDL_Surface *);
+void SDLCreateBitmapTextures(Bitmap *);
+void SDLFreeBitmapTextures(Bitmap *);
+
+SDL_Surface *SDL_DisplayFormat(SDL_Surface *);
+void SDLSetWindowScaling(int);
+void SDLSetWindowScalingQuality(char *);
+void SDLSetWindowFullscreen(boolean);
+void SDLSetDisplaySize(void);
+void SDLSetScreenSizeAndOffsets(int, int);
+void SDLSetScreenSizeForRenderer(int, int);
+void SDLSetScreenProperties(void);
+
+void SDLSetScreenRenderingMode(char *);
+void SDLSetScreenVsyncMode(char *);
+void SDLRedrawWindow(void);
+void SDLSetWindowTitle(void);
+
+void SDLLimitScreenUpdates(boolean);
+void SDLInitVideoDisplay(void);
+void SDLInitVideoBuffer(boolean);
+boolean SDLSetVideoMode(boolean);
+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(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 SDLCopyInverseMasked(Bitmap *, Bitmap *, int, int, int, int, int, int);
+
+Bitmap *SDLZoomBitmap(Bitmap *, int, int);