cfb.h

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    ScreenPtr /*pScreen*/,
    pointer /*pbits*/,
    int /*xsize*/,
    int /*ysize*/,
    int /*dpix*/,
    int /*dpiy*/,
    int /*width*/
#endif
);

extern int cfbFinishScreenInit(
#if NeedFunctionPrototypes
    ScreenPtr /*pScreen*/,
    pointer /*pbits*/,
    int /*xsize*/,
    int /*ysize*/,
    int /*dpix*/,
    int /*dpiy*/,
    int /*width*/
#endif
);

extern Bool cfbScreenInit(
#if NeedFunctionPrototypes
    ScreenPtr /*pScreen*/,
    pointer /*pbits*/,
    int /*xsize*/,
    int /*ysize*/,
    int /*dpix*/,
    int /*dpiy*/,
    int /*width*/
#endif
);
/* cfbseg.c */

extern void cfbSegmentSS(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    int /*nseg*/,
    xSegment * /*pSeg*/
#endif
);

extern void cfbSegmentSD(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    int /*nseg*/,
    xSegment * /*pSeg*/
#endif
);
/* cfbsetsp.c */

extern int cfbSetScanline(
#if NeedFunctionPrototypes
    int /*y*/,
    int /*xOrigin*/,
    int /*xStart*/,
    int /*xEnd*/,
    unsigned int * /*psrc*/,
    int /*alu*/,
    int * /*pdstBase*/,
    int /*widthDst*/,
    unsigned long /*planemask*/
#endif
);

extern void cfbSetSpans(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    char * /*psrc*/,
    DDXPointPtr /*ppt*/,
    int * /*pwidth*/,
    int /*nspans*/,
    int /*fSorted*/
#endif
);
/* cfbsolidC.c */

extern void cfbFillRectSolidCopy(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    int /*nBox*/,
    BoxPtr /*pBox*/
#endif
);

extern void cfbSolidSpansCopy(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    int /*nInit*/,
    DDXPointPtr /*pptInit*/,
    int * /*pwidthInit*/,
    int /*fSorted*/
#endif
);
/* cfbsolidG.c */

extern void cfbFillRectSolidGeneral(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    int /*nBox*/,
    BoxPtr /*pBox*/
#endif
);

extern void cfbSolidSpansGeneral(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    int /*nInit*/,
    DDXPointPtr /*pptInit*/,
    int * /*pwidthInit*/,
    int /*fSorted*/
#endif
);
/* cfbsolidX.c */

extern void cfbFillRectSolidXor(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    int /*nBox*/,
    BoxPtr /*pBox*/
#endif
);

extern void cfbSolidSpansXor(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    int /*nInit*/,
    DDXPointPtr /*pptInit*/,
    int * /*pwidthInit*/,
    int /*fSorted*/
#endif
);
/* cfbteblt8.c */

extern void cfbTEGlyphBlt8(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr/*pGC*/,
    int /*xInit*/,
    int /*yInit*/,
    unsigned int /*nglyph*/,
    CharInfoPtr * /*ppci*/,
    pointer /*pglyphBase*/
#endif
);
/* cfbtegblt.c */

extern void cfbTEGlyphBlt(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr/*pGC*/,
    int /*x*/,
    int /*y*/,
    unsigned int /*nglyph*/,
    CharInfoPtr * /*ppci*/,
    pointer /*pglyphBase*/
#endif
);
/* cfbtile32C.c */

extern void cfbFillRectTile32Copy(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    int /*nBox*/,
    BoxPtr /*pBox*/
#endif
);

extern void cfbTile32FSCopy(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    int /*nInit*/,
    DDXPointPtr /*pptInit*/,
    int * /*pwidthInit*/,
    int /*fSorted*/
#endif
);
/* cfbtile32G.c */

extern void cfbFillRectTile32General(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    int /*nBox*/,
    BoxPtr /*pBox*/
#endif
);

extern void cfbTile32FSGeneral(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    GCPtr /*pGC*/,
    int /*nInit*/,
    DDXPointPtr /*pptInit*/,
    int * /*pwidthInit*/,
    int /*fSorted*/
#endif
);
/* cfbtileoddC.c */

extern void cfbFillBoxTileOddCopy(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    int /*nBox*/,
    BoxPtr /*pBox*/,
    PixmapPtr /*tile*/,
    int /*xrot*/,
    int /*yrot*/,
    int /*alu*/,
    unsigned long /*planemask*/
#endif
);

extern void cfbFillSpanTileOddCopy(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    int /*n*/,
    DDXPointPtr /*ppt*/,
    int * /*pwidth*/,
    PixmapPtr /*tile*/,
    int /*xrot*/,
    int /*yrot*/,
    int /*alu*/,
    unsigned long /*planemask*/
#endif
);

extern void cfbFillBoxTile32sCopy(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    int /*nBox*/,
    BoxPtr /*pBox*/,
    PixmapPtr /*tile*/,
    int /*xrot*/,
    int /*yrot*/,
    int /*alu*/,
    unsigned long /*planemask*/
#endif
);

extern void cfbFillSpanTile32sCopy(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    int /*n*/,
    DDXPointPtr /*ppt*/,
    int * /*pwidth*/,
    PixmapPtr /*tile*/,
    int /*xrot*/,
    int /*yrot*/,
    int /*alu*/,
    unsigned long /*planemask*/
#endif
);
/* cfbtileoddG.c */

extern void cfbFillBoxTileOddGeneral(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    int /*nBox*/,
    BoxPtr /*pBox*/,
    PixmapPtr /*tile*/,
    int /*xrot*/,
    int /*yrot*/,
    int /*alu*/,
    unsigned long /*planemask*/
#endif
);

extern void cfbFillSpanTileOddGeneral(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    int /*n*/,
    DDXPointPtr /*ppt*/,
    int * /*pwidth*/,
    PixmapPtr /*tile*/,
    int /*xrot*/,
    int /*yrot*/,
    int /*alu*/,
    unsigned long /*planemask*/
#endif
);

extern void cfbFillBoxTile32sGeneral(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    int /*nBox*/,
    BoxPtr /*pBox*/,
    PixmapPtr /*tile*/,
    int /*xrot*/,
    int /*yrot*/,
    int /*alu*/,
    unsigned long /*planemask*/
#endif
);

extern void cfbFillSpanTile32sGeneral(
#if NeedFunctionPrototypes
    DrawablePtr /*pDrawable*/,
    int /*n*/,
    DDXPointPtr /*ppt*/,
    int * /*pwidth*/,
    PixmapPtr /*tile*/,
    int /*xrot*/,
    int /*yrot*/,
    int /*alu*/,
    unsigned long /*planemask*/
#endif
);
/* cfbwindow.c */

extern Bool cfbCreateWindow(
#if NeedFunctionPrototypes
    WindowPtr /*pWin*/
#endif
);

extern Bool cfbDestroyWindow(
#if NeedFunctionPrototypes
    WindowPtr /*pWin*/
#endif
);

extern Bool cfbMapWindow(
#if NeedFunctionPrototypes
    WindowPtr /*pWindow*/
#endif
);

extern Bool cfbPositionWindow(
#if NeedFunctionPrototypes
    WindowPtr /*pWin*/,
    int /*x*/,
    int /*y*/
#endif
);

extern Bool cfbUnmapWindow(
#if NeedFunctionPrototypes
    WindowPtr /*pWindow*/
#endif
);

extern void cfbCopyWindow(
#if NeedFunctionPrototypes
    WindowPtr /*pWin*/,
    DDXPointRec /*ptOldOrg*/,
    RegionPtr /*prgnSrc*/
#endif
);

extern Bool cfbChangeWindowAttributes(
#if NeedFunctionPrototypes
    WindowPtr /*pWin*/,
    unsigned long /*mask*/
#endif
);
/* cfbzerarcC.c */

extern void cfbZeroPolyArcSS8Copy(
#if NeedFunctionPrototypes
    DrawablePtr /*pDraw*/,
    GCPtr /*pGC*/,
    int /*narcs*/,
    xArc * /*parcs*/
#endif
);
/* cfbzerarcG.c */

extern void cfbZeroPolyArcSS8General(
#if NeedFunctionPrototypes
    DrawablePtr /*pDraw*/,
    GCPtr /*pGC*/,
    int /*narcs*/,
    xArc * /*parcs*/
#endif
);
/* cfbzerarcX.c */

extern void cfbZeroPolyArcSS8Xor(
#if NeedFunctionPrototypes
    DrawablePtr /*pDraw*/,
    GCPtr /*pGC*/,
    int /*narcs*/,
    xArc * /*parcs*/
#endif
);

/*
 * This is the only completely portable way to
 * compute this info
 */

#define BitsPerPixel(d) (\
    PixmapWidthPaddingInfo[d].notPower2 ? \
    (PixmapWidthPaddingInfo[d].bytesPerPixel * 8) : \
    ((1 << PixmapWidthPaddingInfo[d].padBytesLog2) * 8 / \
    (PixmapWidthPaddingInfo[d].padRoundUp+1)))

/* Common macros for extracting drawing information */

#if !defined(SINGLEDEPTH) && PSZ != 8 || defined(FORCE_SEPARATE_PRIVATE)

#define CFB_NEED_SCREEN_PRIVATE

extern int cfbScreenPrivateIndex;
#define cfbGetScreenPixmap(s)	((PixmapPtr) (s)->devPrivates[cfbScreenPrivateIndex].ptr)
#else
#define cfbGetScreenPixmap(s)	((PixmapPtr) (s)->devPrivate)
#endif

#ifdef PIXMAP_PER_WINDOW
#define cfbGetWindowPixmap(d)	((PixmapPtr) ((WindowPtr) d)->devPrivates[frameWindowPrivateIndex].ptr)
#else
#define cfbGetWindowPixmap(d) cfbGetScreenPixmap((d)->pScreen)
#endif

#define cfbGetTypedWidth(pDrawable,wtype) (\
    (((pDrawable)->type != DRAWABLE_PIXMAP) ? \
     (int) (cfbGetWindowPixmap(pDrawable)->devKind) : \
     (int)(((PixmapPtr)pDrawable)->devKind)) / sizeof (wtype))

#define cfbGetByteWidth(pDrawable) cfbGetTypedWidth(pDrawable, unsigned char)

#define cfbGetPixelWidth(pDrawable) cfbGetTypedWidth(pDrawable, PixelType)

#define cfbGetLongWidth(pDrawable) cfbGetTypedWidth(pDrawable, unsigned long)
    
#define cfbGetTypedWidthAndPointer(pDrawable, width, pointer, wtype, ptype) {\
    PixmapPtr   _pPix; \
    if ((pDrawable)->type != DRAWABLE_PIXMAP) \
	_pPix = cfbGetWindowPixmap(pDrawable); \
    else \
	_pPix = (PixmapPtr) (pDrawable); \
    (pointer) = (ptype *) _pPix->devPrivate.ptr; \
    (width) = ((int) _pPix->devKind) / sizeof (wtype); \
}

#define cfbGetByteWidthAndPointer(pDrawable, width, pointer) \
    cfbGetTypedWidthAndPointer(pDrawable, width, pointer, unsigned char, unsigned char)

#define cfbGetLongWidthAndPointer(pDrawable, width, pointer) \
    cfbGetTypedWidthAndPointer(pDrawable, width, pointer, unsigned long, unsigned long)

#define cfbGetPixelWidthAndPointer(pDrawable, width, pointer) \
    cfbGetTypedWidthAndPointer(pDrawable, width, pointer, PixelType, PixelType)

#define cfbGetWindowTypedWidthAndPointer(pWin, width, pointer, wtype, ptype) {\
    PixmapPtr	_pPix = cfbGetWindowPixmap((DrawablePtr) (pWin)); \
    (pointer) = (ptype *) _pPix->devPrivate.ptr; \
    (width) = ((int) _pPix->devKind) / sizeof (wtype); \
}

#define cfbGetWindowLongWidthAndPointer(pWin, width, pointer) \
    cfbGetWindowTypedWidthAndPointer(pWin, width, pointer, unsigned long, unsigned long)

#define cfbGetWindowByteWidthAndPointer(pWin, width, pointer) \
    cfbGetWindowTypedWidthAndPointer(pWin, width, pointer, unsigned char, unsigned char)

#define cfbGetWindowPixelWidthAndPointer(pDrawable, width, pointer) \
    cfbGetWindowTypedWidthAndPointer(pDrawable, width, pointer, PixelType, PixelType)

/* Macros which handle a coordinate in a single register */

/* Most compilers will convert divide by 65536 into a shift, if signed
 * shifts exist.  If your machine does arithmetic shifts and your compiler
 * can't get it right, add to this line.
 */

/* mips compiler - what a joke - it CSEs the 65536 constant into a reg
 * forcing as to use div instead of shift.  Let's be explicit.
 */

#if defined(mips) || defined(sparc) || defined(__alpha) || defined(__alpha__) || defined(__i386__) || defined(i386)
#define GetHighWord(x) (((int) (x)) >> 16)
#else
#define GetHighWord(x) (((int) (x)) / 65536)
#endif

#if IMAGE_BYTE_ORDER == MSBFirst
#define intToCoord(i,x,y)   (((x) = GetHighWord(i)), ((y) = (int) ((short) (i))))
#define coordToInt(x,y)	(((x) << 16) | (y))
#define intToX(i)	(GetHighWord(i))
#define intToY(i)	((int) ((short) i))
#else
#define intToCoord(i,x,y)   (((x) = (int) ((short) (i))), ((y) = GetHighWord(i)))
#define coordToInt(x,y)	(((y) << 16) | (x))
#define intToX(i)	((int) ((short) (i)))
#define intToY(i)	(GetHighWord(i))
#endif