extern struct GVBase    *GVBase;
extern struct BLTBase   *BLTBase;
extern struct ModPublic *Public;
extern struct Module    *BlitterMod;

LIBFUNC void LIBBlurArea(mreg(__a0) struct Bitmap *Bitmap, mreg(__d0) WORD StartX,
                         mreg(__d1) WORD StartY, mreg(__d2) WORD Width,
                         mreg(__d3) WORD Height, mreg(__d4) WORD Performance);

LIBFUNC LONG LIBCalcBrightness(mreg(__d0) LONG RGB);

LIBFUNC LONG LIBClosestColour(mreg(__d0) LONG RGB,
                              mreg(__a0) struct RGBPalette *Palette);

LIBFUNC LONG LIBConvertHSVToRGB(mreg(__a0) struct HSV *HSV);

LIBFUNC void LIBConvertRGBToHSV(mreg(__d0) LONG rgb, mreg(__a0) struct HSV *HSV);

LIBFUNC LONG LIBCopyPalette(mreg(__a0) LONG argSrcPalette,
                            mreg(__a1) LONG argDestPalette,
                            mreg(__d0) LONG ColStart,
                            mreg(__d1) LONG AmtColours, 
                            mreg(__d2) LONG DestCol);

LIBFUNC void LIBDarkenArea(mreg(__a0) struct Bitmap *Bitmap, mreg(__d0) WORD StartX,
                           mreg(__d1) WORD StartY, mreg(__d2) WORD EndX,
                           mreg(__d3) WORD EndY, mreg(__d4) WORD Percent);

LIBFUNC void LIBDarkenPixel(mreg(__a0) struct Bitmap *Bitmap, mreg(__d0) WORD X,
                            mreg(__d1) WORD Y, mreg(__d2) WORD Percent);

LIBFUNC void LIBLightenArea(mreg(__a0) struct Bitmap *Bitmap, mreg(__d0) WORD StartX,
                            mreg(__d1) WORD StartY, mreg(__d2) WORD EndX,
                            mreg(__d3) WORD EndY, mreg(__d4) WORD Percent);

LIBFUNC void LIBLightenPixel(mreg(__a0) struct Bitmap *Bitmap, mreg(__d0) WORD X,
                             mreg(__d1) WORD Y, mreg(__d2) WORD Percent);

LIBFUNC LONG LIBRemapBitmap(mreg(__a0) LONG Source,
                            mreg(__a1) LONG Dest,
                            mreg(__d0) WORD Performance);

/************************************************************************************
** Prototypes.
*/

void FreeModule(void);