text: /* $Xorg: gcstruct.h,v 1.4 2001/02/09 02:05:15 xorgcvs Exp $ */
  /***********************************************************
  
  Copyright 1987, 1998  The Open Group
  
  Permission to use, copy, modify, distribute, and sell this software and its
  documentation for any purpose is hereby granted without fee, provided that
  the above copyright notice appear in all copies and that both that
  copyright notice and this permission notice appear in supporting
  documentation.
  
  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  
  Except as contained in this notice, the name of The Open Group shall not be
  used in advertising or otherwise to promote the sale, use or other dealings
  in this Software without prior written authorization from The Open Group.
  
  
  Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
  
                          All Rights Reserved
  
  Permission to use, copy, modify, and distribute this software and its 
  documentation for any purpose and without fee is hereby granted, 
  provided that the above copyright notice appear in all copies and that
  both that copyright notice and this permission notice appear in 
  supporting documentation, and that the name of Digital not be
  used in advertising or publicity pertaining to distribution of the
  software without specific, written prior permission.  
  
  DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  SOFTWARE.
  
  ******************************************************************/
  
  
  /* $XFree86: xc/programs/Xserver/include/gcstruct.h,v 1.6 2001/12/14 19:59:54 dawes Exp $ */
  
  #ifndef GCSTRUCT_H
  #define GCSTRUCT_H
  
  #include "gc.h"
  
  #include "miscstruct.h"
  #include "region.h"
  #include "pixmap.h"
  #include "screenint.h"
  #include "Xprotostr.h"
  
  /*
   * functions which modify the state of the GC
   */
  
  typedef struct _GCFuncs {
      void	(* ValidateGC)(
  #if NeedNestedPrototypes
  		GCPtr /*pGC*/,
  		unsigned long /*stateChanges*/,
  		DrawablePtr /*pDrawable*/
  #endif
  );
  
      void	(* ChangeGC)(
  #if NeedNestedPrototypes
  		GCPtr /*pGC*/,
  		unsigned long /*mask*/
  #endif
  );
  
      void	(* CopyGC)(
  #if NeedNestedPrototypes
  		GCPtr /*pGCSrc*/,
  		unsigned long /*mask*/,
  		GCPtr /*pGCDst*/
  #endif
  );
  
      void	(* DestroyGC)(
  #if NeedNestedPrototypes
  		GCPtr /*pGC*/
  #endif
  );
  
      void	(* ChangeClip)(
  #if NeedNestedPrototypes
  		GCPtr /*pGC*/,
  		int /*type*/,
  		pointer /*pvalue*/,
  		int /*nrects*/
  #endif
  );
  
      void	(* DestroyClip)(
  #if NeedNestedPrototypes
  		GCPtr /*pGC*/
  #endif
  );
  
      void	(* CopyClip)(
  #if NeedNestedPrototypes
  		GCPtr /*pgcDst*/,
  		GCPtr /*pgcSrc*/
  #endif
  );
      DevUnion	devPrivate;
  } GCFuncs;
  
  /*
   * graphics operations invoked through a GC
   */
  
  typedef struct _GCOps {
      void	(* FillSpans)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*nInit*/,
  		DDXPointPtr /*pptInit*/,
  		int * /*pwidthInit*/,
  		int /*fSorted*/
  #endif
  );
  
      void	(* SetSpans)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		char * /*psrc*/,
  		DDXPointPtr /*ppt*/,
  		int * /*pwidth*/,
  		int /*nspans*/,
  		int /*fSorted*/
  #endif
  );
  
      void	(* PutImage)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*depth*/,
  		int /*x*/,
  		int /*y*/,
  		int /*w*/,
  		int /*h*/,
  		int /*leftPad*/,
  		int /*format*/,
  		char * /*pBits*/
  #endif
  );
  
      RegionPtr	(* CopyArea)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pSrc*/,
  		DrawablePtr /*pDst*/,
  		GCPtr /*pGC*/,
  		int /*srcx*/,
  		int /*srcy*/,
  		int /*w*/,
  		int /*h*/,
  		int /*dstx*/,
  		int /*dsty*/
  #endif
  );
  
      RegionPtr	(* CopyPlane)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pSrcDrawable*/,
  		DrawablePtr /*pDstDrawable*/,
  		GCPtr /*pGC*/,
  		int /*srcx*/,
  		int /*srcy*/,
  		int /*width*/,
  		int /*height*/,
  		int /*dstx*/,
  		int /*dsty*/,
  		unsigned long /*bitPlane*/
  #endif
  );
      void	(* PolyPoint)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*mode*/,
  		int /*npt*/,
  		DDXPointPtr /*pptInit*/
  #endif
  );
  
      void	(* Polylines)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*mode*/,
  		int /*npt*/,
  		DDXPointPtr /*pptInit*/
  #endif
  );
  
      void	(* PolySegment)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*nseg*/,
  		xSegment * /*pSegs*/
  #endif
  );
  
      void	(* PolyRectangle)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*nrects*/,
  		xRectangle * /*pRects*/
  #endif
  );
  
      void	(* PolyArc)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*narcs*/,
  		xArc * /*parcs*/
  #endif
  );
  
      void	(* FillPolygon)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*shape*/,
  		int /*mode*/,
  		int /*count*/,
  		DDXPointPtr /*pPts*/
  #endif
  );
  
      void	(* PolyFillRect)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*nrectFill*/,
  		xRectangle * /*prectInit*/
  #endif
  );
  
      void	(* PolyFillArc)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*narcs*/,
  		xArc * /*parcs*/
  #endif
  );
  
      int		(* PolyText8)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*x*/,
  		int /*y*/,
  		int /*count*/,
  		char * /*chars*/
  #endif
  );
  
      int		(* PolyText16)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*x*/,
  		int /*y*/,
  		int /*count*/,
  		unsigned short * /*chars*/
  #endif
  );
  
      void	(* ImageText8)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*x*/,
  		int /*y*/,
  		int /*count*/,
  		char * /*chars*/
  #endif
  );
  
      void	(* ImageText16)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*x*/,
  		int /*y*/,
  		int /*count*/,
  		unsigned short * /*chars*/
  #endif
  );
  
      void	(* ImageGlyphBlt)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*x*/,
  		int /*y*/,
  		unsigned int /*nglyph*/,
  		CharInfoPtr * /*ppci*/,
  		pointer /*pglyphBase*/
  #endif
  );
  
      void	(* PolyGlyphBlt)(
  #if NeedNestedPrototypes
  		DrawablePtr /*pDrawable*/,
  		GCPtr /*pGC*/,
  		int /*x*/,
  		int /*y*/,
  		unsigned int /*nglyph*/,
  		CharInfoPtr * /*ppci*/,
  		pointer /*pglyphBase*/
  #endif
  );
  
      void	(* PushPixels)(
  #if NeedNestedPrototypes
  		GCPtr /*pGC*/,
  		PixmapPtr /*pBitMap*/,
  		DrawablePtr /*pDst*/,
  		int /*w*/,
  		int /*h*/,
  		int /*x*/,
  		int /*y*/
  #endif
  );
  
  #ifdef NEED_LINEHELPER
      void	(* LineHelper)();
  #endif
  
      DevUnion	devPrivate;
  } GCOps;
  
  /* there is padding in the bit fields because the Sun compiler doesn't
   * force alignment to 32-bit boundaries.  losers.
   */
  typedef struct _GC {
      ScreenPtr		pScreen;		
      unsigned char	depth;    
      unsigned char	alu;
      unsigned short	lineWidth;          
      unsigned short	dashOffset;
      unsigned short	numInDashList;
      unsigned char	*dash;
      unsigned int	lineStyle : 2;
      unsigned int	capStyle : 2;
      unsigned int	joinStyle : 2;
      unsigned int	fillStyle : 2;
      unsigned int	fillRule : 1;
      unsigned int 	arcMode : 1;
      unsigned int	subWindowMode : 1;
      unsigned int	graphicsExposures : 1;
      unsigned int	clientClipType : 2; /* CT_<kind> */
      unsigned int	miTranslate:1; /* should mi things translate? */
      unsigned int	tileIsPixel:1; /* tile is solid pixel */
      unsigned int	fExpose:1;     /* Call exposure handling */
      unsigned int	freeCompClip:1;  /* Free composite clip */
      unsigned int	unused:14; /* see comment above */
      unsigned long	planemask;
      unsigned long	fgPixel;
      unsigned long	bgPixel;
      /*
       * alas -- both tile and stipple must be here as they
       * are independently specifiable
       */
      PixUnion		tile;
      PixmapPtr		stipple;
      DDXPointRec		patOrg;		/* origin for (tile, stipple) */
      struct _Font	*font;
      DDXPointRec		clipOrg;
      DDXPointRec		lastWinOrg;	/* position of window last validated */
      pointer		clientClip;
      unsigned long	stateChanges;	/* masked with GC_<kind> */
      unsigned long       serialNumber;
      GCFuncs		*funcs;
      GCOps		*ops;
      DevUnion		*devPrivates;
      /*
       * The following were moved here from private storage to allow device-
       * independent access to them from screen wrappers.
       * --- 1997.11.03  Marc Aurele La France (tsi@xfree86.org)
       */
      PixmapPtr		pRotatedPixmap; /* tile/stipple rotated for alignment */
      RegionPtr		pCompositeClip;
      /* fExpose & freeCompClip defined above */
  } GC;
  
  #endif /* GCSTRUCT_H */
  