Synchronised line endinge with release branch

1 files changed, 2128 insertions, 2128 deletions

diff --git a/xorg-server/miext/damage/damage.c b/xorg-server/miext/damage/damage.c
index de7b53543..224f5e074 100644
--- a/xorg-server/miext/damage/damage.c
+++ b/xorg-server/miext/damage/damage.c
@@ -1,2128 +1,2128 @@
-/*

- * Copyright © 2003 Keith Packard

- *

- * 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, and that the name of Keith Packard not be used in

- * advertising or publicity pertaining to distribution of the software without

- * specific, written prior permission.  Keith Packard makes no

- * representations about the suitability of this software for any purpose.  It

- * is provided "as is" without express or implied warranty.

- *

- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

- * EVENT SHALL KEITH PACKARD 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.

- */

-

-#ifdef HAVE_DIX_CONFIG_H

-#include <dix-config.h>

-#endif

-

-#include <stdlib.h>

-

-#include    <X11/X.h>

-#include    "scrnintstr.h"

-#include    "windowstr.h"

-#include    <X11/fonts/font.h>

-#include    "dixfontstr.h"

-#include    <X11/fonts/fontstruct.h>

-#include    "mi.h"

-#include    "regionstr.h"

-#include    "globals.h"

-#include    "gcstruct.h"

-#include    "damage.h"

-#include    "damagestr.h"

-#ifdef COMPOSITE

-#include    "cw.h"

-#endif

-

-#define wrap(priv, real, mem, func) {\

-    priv->mem = real->mem; \

-    real->mem = func; \

-}

-

-#define unwrap(priv, real, mem) {\

-    real->mem = priv->mem; \

-}

-

-#define BOX_SAME(a,b) \

-    ((a)->x1 == (b)->x1 && \

-     (a)->y1 == (b)->y1 && \

-     (a)->x2 == (b)->x2 && \

-     (a)->y2 == (b)->y2)

-

-#define DAMAGE_VALIDATE_ENABLE 0

-#define DAMAGE_DEBUG_ENABLE 0

-#if DAMAGE_DEBUG_ENABLE

-#define DAMAGE_DEBUG(x)	ErrorF x

-#else

-#define DAMAGE_DEBUG(x)

-#endif

-

-#define getPixmapDamageRef(pPixmap) ((DamagePtr *) \

-    dixLookupPrivateAddr(&(pPixmap)->devPrivates, damagePixPrivateKey))

-

-#define pixmapDamage(pPixmap)		damagePixPriv(pPixmap)

-

-static DevPrivateKeyRec damageScrPrivateKeyRec;

-#define damageScrPrivateKey (&damageScrPrivateKeyRec)

-static DevPrivateKeyRec damagePixPrivateKeyRec;

-#define damagePixPrivateKey (&damagePixPrivateKeyRec)

-static DevPrivateKeyRec damageGCPrivateKeyRec;

-#define damageGCPrivateKey (&damageGCPrivateKeyRec)

-static DevPrivateKeyRec damageWinPrivateKeyRec;

-#define damageWinPrivateKey (&damageWinPrivateKeyRec)

-

-static DamagePtr *

-getDrawableDamageRef (DrawablePtr pDrawable)

-{

-    PixmapPtr   pPixmap;

-    

-    if (WindowDrawable(pDrawable->type))

-    {

-	ScreenPtr   pScreen = pDrawable->pScreen;

-

-	pPixmap = 0;

-	if (pScreen->GetWindowPixmap

-#ifdef ROOTLESS_WORKAROUND

-	    && ((WindowPtr)pDrawable)->viewable

-#endif

-	    )

-	    pPixmap = (*pScreen->GetWindowPixmap) ((WindowPtr)pDrawable);

-

-	if (!pPixmap)

-	{

-	    damageScrPriv(pScreen);

-

-	    return &pScrPriv->pScreenDamage;

-	}

-    }

-    else

-	pPixmap = (PixmapPtr) pDrawable;

-    return getPixmapDamageRef (pPixmap);

-}

-

-#define getDrawableDamage(pDrawable)	(*getDrawableDamageRef (pDrawable))

-#define getWindowDamage(pWin)		getDrawableDamage(&(pWin)->drawable)

-

-#define drawableDamage(pDrawable)	\

-    DamagePtr	pDamage = getDrawableDamage(pDrawable)

-

-#define windowDamage(pWin)		drawableDamage(&(pWin)->drawable)

-

-#define winDamageRef(pWindow) \

-    DamagePtr	*pPrev = (DamagePtr *) \

-	dixLookupPrivateAddr(&(pWindow)->devPrivates, damageWinPrivateKey)

-

-static void

-damageReportDamagePostRendering (DamagePtr pDamage, RegionPtr pOldDamage, RegionPtr pDamageRegion)

-{

-    BoxRec tmpBox;

-    RegionRec tmpRegion, newDamage;

-    Bool was_empty;

-

-    RegionUnion(&newDamage, pOldDamage, pDamageRegion);

-

-    switch (pDamage->damageLevel) {

-    case DamageReportRawRegion:

-	(*pDamage->damageReportPostRendering) (pDamage, pDamageRegion, pDamage->closure);

-	break;

-    case DamageReportDeltaRegion:

-	RegionNull(&tmpRegion);

-	RegionSubtract(&tmpRegion, pDamageRegion, pOldDamage);

-	if (RegionNotEmpty(&tmpRegion)) {

-	    (*pDamage->damageReportPostRendering) (pDamage, &tmpRegion, pDamage->closure);

-	}

-	RegionUninit(&tmpRegion);

-	break;

-    case DamageReportBoundingBox:

-	tmpBox = *RegionExtents(pOldDamage);

-	if (!BOX_SAME (&tmpBox, RegionExtents(&newDamage))) {

-	    (*pDamage->damageReportPostRendering) (pDamage, &newDamage,

-				      pDamage->closure);

-	}

-	break;

-    case DamageReportNonEmpty:

-	was_empty = !RegionNotEmpty(pOldDamage);

-	if (was_empty && RegionNotEmpty(&newDamage)) {

-	    (*pDamage->damageReportPostRendering) (pDamage, &newDamage,

-				      pDamage->closure);

-	}

-	break;

-    case DamageReportNone:

-	break;

-    }

-

-    RegionUninit(&newDamage);

-}

-

-#if DAMAGE_DEBUG_ENABLE

-static void

-_damageRegionAppend (DrawablePtr pDrawable, RegionPtr pRegion, Bool clip, int subWindowMode, const char *where)

-#define damageRegionAppend(d,r,c,m) _damageRegionAppend(d,r,c,m,__FUNCTION__)

-#else

-static void

-damageRegionAppend (DrawablePtr pDrawable, RegionPtr pRegion, Bool clip,

-			int subWindowMode)

-#endif

-{

-    ScreenPtr	    pScreen = pDrawable->pScreen;

-    damageScrPriv(pScreen);

-    drawableDamage(pDrawable);

-    DamagePtr	    pNext;

-    RegionRec	    clippedRec;

-    RegionPtr	    pDamageRegion;

-    RegionRec	    pixClip;

-    int		    draw_x, draw_y;

-#ifdef COMPOSITE

-    int		    screen_x = 0, screen_y = 0;

-#endif

-

-    /* short circuit for empty regions */

-    if (!RegionNotEmpty(pRegion))

-	return;

-    

-#ifdef COMPOSITE

-    /*

-     * When drawing to a pixmap which is storing window contents,

-     * the region presented is in pixmap relative coordinates which

-     * need to be converted to screen relative coordinates

-     */

-    if (pDrawable->type != DRAWABLE_WINDOW)

-    {

-	screen_x = ((PixmapPtr) pDrawable)->screen_x - pDrawable->x;

-	screen_y = ((PixmapPtr) pDrawable)->screen_y - pDrawable->y;

-    }

-    if (screen_x || screen_y)

-        RegionTranslate(pRegion, screen_x, screen_y);

-#endif

-	

-    if (pDrawable->type == DRAWABLE_WINDOW &&

-	((WindowPtr)(pDrawable))->backingStore == NotUseful)

-    {

-	if (subWindowMode == ClipByChildren)

-	{

-	    RegionIntersect(pRegion, pRegion,

-			     &((WindowPtr)(pDrawable))->clipList);

-	}

-	else if (subWindowMode == IncludeInferiors)

-	{

-	    RegionPtr pTempRegion =

-		NotClippedByChildren((WindowPtr)(pDrawable));

-	    RegionIntersect(pRegion, pRegion, pTempRegion);

-	    RegionDestroy(pTempRegion);

-	}

-	/* If subWindowMode is set to an invalid value, don't perform

-	 * any drawable-based clipping. */

-    }

-        

-

-    RegionNull(&clippedRec);

-    for (; pDamage; pDamage = pNext)

-    {

-	pNext = pDamage->pNext;

-	/*

-	 * Check for internal damage and don't send events

-	 */

-	if (pScrPriv->internalLevel > 0 && !pDamage->isInternal)

-	{

-	    DAMAGE_DEBUG (("non internal damage, skipping at %d\n",

-			   pScrPriv->internalLevel));

-	    continue;

-	}

-	/*

-	 * Check for unrealized windows

-	 */

-	if (pDamage->pDrawable->type == DRAWABLE_WINDOW &&

-	    !((WindowPtr) (pDamage->pDrawable))->realized)

-	{

-	    continue;

-	}

-	

-	draw_x = pDamage->pDrawable->x;

-	draw_y = pDamage->pDrawable->y;

-#ifdef COMPOSITE

-	/*

-	 * Need to move everyone to screen coordinates

-	 * XXX what about off-screen pixmaps with non-zero x/y?

-	 */

-	if (!WindowDrawable(pDamage->pDrawable->type))

-	{

-	    draw_x += ((PixmapPtr) pDamage->pDrawable)->screen_x;

-	    draw_y += ((PixmapPtr) pDamage->pDrawable)->screen_y;

-	}

-#endif

-	

-	/*

-	 * Clip against border or pixmap bounds

-	 */

-	

-	pDamageRegion = pRegion;

-	if (clip || pDamage->pDrawable != pDrawable)

-	{

-	    pDamageRegion = &clippedRec;

-	    if (pDamage->pDrawable->type == DRAWABLE_WINDOW) {

-		RegionIntersect(pDamageRegion, pRegion,

-		    &((WindowPtr)(pDamage->pDrawable))->borderClip);

-	    } else {

-		BoxRec	box;

-		box.x1 = draw_x;

-		box.y1 = draw_y;

-		box.x2 = draw_x + pDamage->pDrawable->width;

-		box.y2 = draw_y + pDamage->pDrawable->height;

-		RegionInit(&pixClip, &box, 1);

-		RegionIntersect(pDamageRegion, pRegion, &pixClip);

-		RegionUninit(&pixClip);

-	    }

-	    /*

-	     * Short circuit empty results

-	     */

-	    if (!RegionNotEmpty(pDamageRegion))

-		continue;

-	}

-	

-	DAMAGE_DEBUG (("%s %d x %d +%d +%d (target 0x%lx monitor 0x%lx)\n",

-		       where,

-		       pDamageRegion->extents.x2 - pDamageRegion->extents.x1,

-		       pDamageRegion->extents.y2 - pDamageRegion->extents.y1,

-		       pDamageRegion->extents.x1, pDamageRegion->extents.y1,

-		       pDrawable->id, pDamage->pDrawable->id));

-	

-	/*

-	 * Move region to target coordinate space

-	 */

-	if (draw_x || draw_y)

-	    RegionTranslate(pDamageRegion, -draw_x, -draw_y);

-

-	/* Store damage region if needed after submission. */

-	if (pDamage->reportAfter || pDamage->damageMarker)

-	    RegionUnion(&pDamage->pendingDamage,

-			 &pDamage->pendingDamage, pDamageRegion);

-

-	/* Duplicate current damage if needed. */

-	if (pDamage->damageMarker)

-	    RegionCopy(&pDamage->backupDamage, &pDamage->damage);

-

-	/* Report damage now, if desired. */

-	if (!pDamage->reportAfter) {

-	    if (pDamage->damageReport)

-		DamageReportDamage (pDamage, pDamageRegion);

-	    else

-		RegionUnion(&pDamage->damage,

-			 &pDamage->damage, pDamageRegion);

-	}

-

-	/*

-	 * translate original region back

-	 */

-	if (pDamageRegion == pRegion && (draw_x || draw_y))

-	    RegionTranslate(pDamageRegion, draw_x, draw_y);

-    }

-#ifdef COMPOSITE

-    if (screen_x || screen_y)

-	RegionTranslate(pRegion, -screen_x, -screen_y);

-#endif

-    

-    RegionUninit(&clippedRec);

-}

-

-static void

-damageRegionProcessPending (DrawablePtr pDrawable)

-{

-    drawableDamage(pDrawable);

-

-    for (; pDamage != NULL; pDamage = pDamage->pNext)

-    {

-	/* submit damage marker whenever possible. */

-	if (pDamage->damageMarker)

-	    (*pDamage->damageMarker) (pDrawable, pDamage, &pDamage->backupDamage, &pDamage->pendingDamage, pDamage->closure);

-	if (pDamage->reportAfter) {

-	    /* It's possible that there is only interest in postRendering reporting. */

-	    if (pDamage->damageReport)

-		DamageReportDamage (pDamage, &pDamage->pendingDamage);

-	    else

-		RegionUnion(&pDamage->damage, &pDamage->damage,

-			&pDamage->pendingDamage);

-	}

-

-	if (pDamage->reportAfter || pDamage->damageMarker)

-	    RegionEmpty(&pDamage->pendingDamage);

-	if (pDamage->damageMarker)

-	    RegionEmpty(&pDamage->backupDamage);

-    }

-    

-}

-

-#if DAMAGE_DEBUG_ENABLE

-#define damageDamageBox(d,b,m) _damageDamageBox(d,b,m,__FUNCTION__)

-static void

-_damageDamageBox (DrawablePtr pDrawable, BoxPtr pBox, int subWindowMode, const char *where)

-#else

-static void

-damageDamageBox (DrawablePtr pDrawable, BoxPtr pBox, int subWindowMode)

-#endif

-{

-    RegionRec	region;

-

-    RegionInit(&region, pBox, 1);

-#if DAMAGE_DEBUG_ENABLE

-    _damageRegionAppend (pDrawable, &region, TRUE, subWindowMode, where);

-#else

-    damageRegionAppend (pDrawable, &region, TRUE, subWindowMode);

-#endif

-    RegionUninit(&region);

-}

-

-static void damageValidateGC(GCPtr, unsigned long, DrawablePtr);

-static void damageChangeGC(GCPtr, unsigned long);

-static void damageCopyGC(GCPtr, unsigned long, GCPtr);

-static void damageDestroyGC(GCPtr);

-static void damageChangeClip(GCPtr, int, pointer, int);

-static void damageDestroyClip(GCPtr);

-static void damageCopyClip(GCPtr, GCPtr);

-

-static GCFuncs damageGCFuncs = {

-    damageValidateGC, damageChangeGC, damageCopyGC, damageDestroyGC,

-    damageChangeClip, damageDestroyClip, damageCopyClip

-};

-

-static GCOps damageGCOps;

-

-static Bool

-damageCreateGC(GCPtr pGC)

-{

-    ScreenPtr pScreen = pGC->pScreen;

-    damageScrPriv(pScreen);

-    damageGCPriv(pGC);

-    Bool ret;

-

-    unwrap (pScrPriv, pScreen, CreateGC);

-    if((ret = (*pScreen->CreateGC) (pGC))) {

-	pGCPriv->ops = NULL;

-	pGCPriv->funcs = pGC->funcs;

-	pGC->funcs = &damageGCFuncs;

-    }

-    wrap (pScrPriv, pScreen, CreateGC, damageCreateGC);

-

-    return ret;

-}

-

-#define DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable) \

-    damageGCPriv(pGC);  \

-    GCFuncs *oldFuncs = pGC->funcs; \

-    unwrap(pGCPriv, pGC, funcs);  \

-    unwrap(pGCPriv, pGC, ops); \

-

-#define DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable) \

-    wrap(pGCPriv, pGC, funcs, oldFuncs); \

-    wrap(pGCPriv, pGC, ops, &damageGCOps)

-

-#define DAMAGE_GC_FUNC_PROLOGUE(pGC) \

-    damageGCPriv(pGC); \

-    unwrap(pGCPriv, pGC, funcs); \

-    if (pGCPriv->ops) unwrap(pGCPriv, pGC, ops)

-

-#define DAMAGE_GC_FUNC_EPILOGUE(pGC) \

-    wrap(pGCPriv, pGC, funcs, &damageGCFuncs);  \

-    if (pGCPriv->ops) wrap(pGCPriv, pGC, ops, &damageGCOps)

-

-static void

-damageValidateGC(GCPtr         pGC,

-		 unsigned long changes,

-		 DrawablePtr   pDrawable)

-{

-    DAMAGE_GC_FUNC_PROLOGUE (pGC);

-    (*pGC->funcs->ValidateGC)(pGC, changes, pDrawable);

-    pGCPriv->ops = pGC->ops;  /* just so it's not NULL */

-    DAMAGE_GC_FUNC_EPILOGUE (pGC);

-}

-

-static void

-damageDestroyGC(GCPtr pGC)

-{

-    DAMAGE_GC_FUNC_PROLOGUE (pGC);

-    (*pGC->funcs->DestroyGC)(pGC);

-    DAMAGE_GC_FUNC_EPILOGUE (pGC);

-}

-

-static void

-damageChangeGC (GCPtr		pGC,

-		unsigned long   mask)

-{

-    DAMAGE_GC_FUNC_PROLOGUE (pGC);

-    (*pGC->funcs->ChangeGC) (pGC, mask);

-    DAMAGE_GC_FUNC_EPILOGUE (pGC);

-}

-

-static void

-damageCopyGC (GCPtr	    pGCSrc,

-	      unsigned long mask,

-	      GCPtr	    pGCDst)

-{

-    DAMAGE_GC_FUNC_PROLOGUE (pGCDst);

-    (*pGCDst->funcs->CopyGC) (pGCSrc, mask, pGCDst);

-    DAMAGE_GC_FUNC_EPILOGUE (pGCDst);

-}

-

-static void

-damageChangeClip (GCPtr	    pGC,

-		  int	    type,

-		  pointer   pvalue,

-		  int	    nrects)

-{

-    DAMAGE_GC_FUNC_PROLOGUE (pGC);

-    (*pGC->funcs->ChangeClip) (pGC, type, pvalue, nrects);

-    DAMAGE_GC_FUNC_EPILOGUE (pGC);

-}

-

-static void

-damageCopyClip(GCPtr pgcDst, GCPtr pgcSrc)

-{

-    DAMAGE_GC_FUNC_PROLOGUE (pgcDst);

-    (* pgcDst->funcs->CopyClip)(pgcDst, pgcSrc);

-    DAMAGE_GC_FUNC_EPILOGUE (pgcDst);

-}

-

-static void

-damageDestroyClip(GCPtr pGC)

-{

-    DAMAGE_GC_FUNC_PROLOGUE (pGC);

-    (* pGC->funcs->DestroyClip)(pGC);

-    DAMAGE_GC_FUNC_EPILOGUE (pGC);

-}

-

-#define TRIM_BOX(box, pGC) if (pGC->pCompositeClip) { \

-    BoxPtr extents = &pGC->pCompositeClip->extents;\

-    if(box.x1 < extents->x1) box.x1 = extents->x1; \

-    if(box.x2 > extents->x2) box.x2 = extents->x2; \

-    if(box.y1 < extents->y1) box.y1 = extents->y1; \

-    if(box.y2 > extents->y2) box.y2 = extents->y2; \

-    }

-

-#define TRANSLATE_BOX(box, pDrawable) { \

-    box.x1 += pDrawable->x; \

-    box.x2 += pDrawable->x; \

-    box.y1 += pDrawable->y; \

-    box.y2 += pDrawable->y; \

-    }

-

-#define TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC) { \

-    TRANSLATE_BOX(box, pDrawable); \

-    TRIM_BOX(box, pGC); \

-    }

-

-#define BOX_NOT_EMPTY(box) \

-    (((box.x2 - box.x1) > 0) && ((box.y2 - box.y1) > 0))

-

-#define checkGCDamage(d,g)	(getDrawableDamage(d) && \

-				 (!g->pCompositeClip ||\

-				  RegionNotEmpty(g->pCompositeClip)))

-

-#define TRIM_PICTURE_BOX(box, pDst) { \

-    BoxPtr extents = &pDst->pCompositeClip->extents;\

-    if(box.x1 < extents->x1) box.x1 = extents->x1; \

-    if(box.x2 > extents->x2) box.x2 = extents->x2; \

-    if(box.y1 < extents->y1) box.y1 = extents->y1; \

-    if(box.y2 > extents->y2) box.y2 = extents->y2; \

-    }

-    

-#define checkPictureDamage(p)	(getDrawableDamage(p->pDrawable) && \

-				 RegionNotEmpty(p->pCompositeClip))

-

-static void

-damageComposite (CARD8      op,

-		   PicturePtr pSrc,

-		   PicturePtr pMask,

-		   PicturePtr pDst,

-		   INT16      xSrc,

-		   INT16      ySrc,

-		   INT16      xMask,

-		   INT16      yMask,

-		   INT16      xDst,

-		   INT16      yDst,

-		   CARD16     width,

-		   CARD16     height)

-{

-    ScreenPtr		pScreen = pDst->pDrawable->pScreen;

-    PictureScreenPtr	ps = GetPictureScreen(pScreen);

-    damageScrPriv(pScreen);

-

-    if (checkPictureDamage (pDst))

-    {

-	BoxRec	box;

-

-	box.x1 = xDst + pDst->pDrawable->x;

-	box.y1 = yDst + pDst->pDrawable->y;

-	box.x2 = box.x1 + width;

-	box.y2 = box.y1 + height;

-	TRIM_PICTURE_BOX(box, pDst);

-	if (BOX_NOT_EMPTY(box))

-	    damageDamageBox (pDst->pDrawable, &box, pDst->subWindowMode);

-    }

-    unwrap (pScrPriv, ps, Composite);

-    (*ps->Composite) (op,

-		       pSrc,

-		       pMask,

-		       pDst,

-		       xSrc,

-		       ySrc,

-		       xMask,

-		       yMask,

-		       xDst,

-		       yDst,

-		       width,

-		       height);

-    damageRegionProcessPending (pDst->pDrawable);

-    wrap (pScrPriv, ps, Composite, damageComposite);

-}

-

-static void

-damageGlyphs (CARD8		op,

-		PicturePtr	pSrc,

-		PicturePtr	pDst,

-		PictFormatPtr	maskFormat,

-		INT16		xSrc,

-		INT16		ySrc,

-		int		nlist,

-		GlyphListPtr	list,

-		GlyphPtr	*glyphs)

-{

-    ScreenPtr		pScreen = pDst->pDrawable->pScreen;

-    PictureScreenPtr	ps = GetPictureScreen(pScreen);

-    damageScrPriv(pScreen);

-

-    if (checkPictureDamage (pDst))

-    {

-	int		nlistTmp = nlist;

-	GlyphListPtr	listTmp = list;

-	GlyphPtr	*glyphsTmp = glyphs;

-	int		x, y;

-	int		n;

-	GlyphPtr	glyph;

-	BoxRec		box;

-	int		x1, y1, x2, y2;

-

-	box.x1 = 32767;

-	box.y1 = 32767;

-	box.x2 = -32767;

-	box.y2 = -32767;

-	x = pDst->pDrawable->x;

-	y = pDst->pDrawable->y;

-	while (nlistTmp--)

-	{

-	    x += listTmp->xOff;

-	    y += listTmp->yOff;

-	    n = listTmp->len;

-	    while (n--)

-	    {

-		glyph = *glyphsTmp++;

-		x1 = x - glyph->info.x;

-		y1 = y - glyph->info.y;

-		x2 = x1 + glyph->info.width;

-		y2 = y1 + glyph->info.height;

-		if (x1 < box.x1)

-		    box.x1 = x1;

-		if (y1 < box.y1)

-		    box.y1 = y1;

-		if (x2 > box.x2)

-		    box.x2 = x2;

-		if (y2 > box.y2)

-		    box.y2 = y2;

-		x += glyph->info.xOff;

-		y += glyph->info.yOff;

-	    }

-	    listTmp++;

-	}

-	TRIM_PICTURE_BOX (box, pDst);

-	if (BOX_NOT_EMPTY(box))

-	    damageDamageBox (pDst->pDrawable, &box, pDst->subWindowMode);

-    }

-    unwrap (pScrPriv, ps, Glyphs);

-    (*ps->Glyphs) (op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, list, glyphs);

-    damageRegionProcessPending (pDst->pDrawable);

-    wrap (pScrPriv, ps, Glyphs, damageGlyphs);

-}

-

-static void

-damageAddTraps (PicturePtr  pPicture,

-		INT16	    x_off,

-		INT16	    y_off,

-		int	    ntrap,

-		xTrap	    *traps)

-{

-    ScreenPtr		pScreen = pPicture->pDrawable->pScreen;

-    PictureScreenPtr	ps = GetPictureScreen(pScreen);

-    damageScrPriv(pScreen);

-

-    if (checkPictureDamage (pPicture))

-    {

-	BoxRec	box;

-	int	i;

-	int	x, y;

-	xTrap	*t = traps;

-

-	box.x1 = 32767;

-	box.y1 = 32767;

-	box.x2 = -32767;

-	box.y2 = -32767;

-	x = pPicture->pDrawable->x + x_off;

-	y = pPicture->pDrawable->y + y_off;

-	for (i = 0; i < ntrap; i++)

-	{

-	    pixman_fixed_t   l = min (t->top.l, t->bot.l);

-	    pixman_fixed_t   r = max (t->top.r, t->bot.r);

-	    int	    x1 = x + pixman_fixed_to_int (l);

-	    int	    x2 = x + pixman_fixed_to_int (pixman_fixed_ceil (r));

-	    int	    y1 = y + pixman_fixed_to_int (t->top.y);

-	    int	    y2 = y + pixman_fixed_to_int (pixman_fixed_ceil (t->bot.y));

-	    

-	    if (x1 < box.x1)

-		box.x1 = x1;

-	    if (x2 > box.x2)

-		box.x2 = x2;

-	    if (y1 < box.y1)

-		box.y1 = y1;

-	    if (y2 > box.y2)

-		box.y2 = y2;

-	}

-	TRIM_PICTURE_BOX (box, pPicture);

-	if (BOX_NOT_EMPTY(box))

-	    damageDamageBox (pPicture->pDrawable, &box, pPicture->subWindowMode);

-    }

-    unwrap (pScrPriv, ps, AddTraps);

-    (*ps->AddTraps) (pPicture, x_off, y_off, ntrap, traps);

-    damageRegionProcessPending (pPicture->pDrawable);

-    wrap (pScrPriv, ps, AddTraps, damageAddTraps);

-}

-

-/**********************************************************/

-

-

-static void

-damageFillSpans(DrawablePtr pDrawable,

-		GC	    *pGC,

-		int	    npt,

-		DDXPointPtr ppt,

-		int	    *pwidth,

-		int	    fSorted)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (npt && checkGCDamage (pDrawable, pGC))

-    {

-	int	    nptTmp = npt;

-	DDXPointPtr pptTmp = ppt;

-	int	    *pwidthTmp = pwidth;

-	BoxRec	    box;

-

-	box.x1 = pptTmp->x;

-	box.x2 = box.x1 + *pwidthTmp;

-	box.y2 = box.y1 = pptTmp->y;

-

-	while(--nptTmp) 

-	{

-	   pptTmp++;

-	   pwidthTmp++;

-	   if(box.x1 > pptTmp->x) box.x1 = pptTmp->x;

-	   if(box.x2 < (pptTmp->x + *pwidthTmp))

-		box.x2 = pptTmp->x + *pwidthTmp;

-	   if(box.y1 > pptTmp->y) box.y1 = pptTmp->y;

-	   else if(box.y2 < pptTmp->y) box.y2 = pptTmp->y;

-	}

-

-	box.y2++;

-

-        if(!pGC->miTranslate) {

-           TRANSLATE_BOX(box, pDrawable);

-        }

-        TRIM_BOX(box, pGC); 

-

-	if(BOX_NOT_EMPTY(box))

-	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-    }

-    

-    (*pGC->ops->FillSpans)(pDrawable, pGC, npt, ppt, pwidth, fSorted);

-

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-static void

-damageSetSpans(DrawablePtr  pDrawable,

-	       GCPtr	    pGC,

-	       char	    *pcharsrc,

-	       DDXPointPtr  ppt,

-	       int	    *pwidth,

-	       int	    npt,

-	       int	    fSorted)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (npt && checkGCDamage (pDrawable, pGC))

-    {

-	DDXPointPtr pptTmp = ppt;

-	int	    *pwidthTmp = pwidth;

-	int	    nptTmp = npt;

-	BoxRec	    box;

-

-	box.x1 = pptTmp->x;

-	box.x2 = box.x1 + *pwidthTmp;

-	box.y2 = box.y1 = pptTmp->y;

-

-	while(--nptTmp) 

-	{

-	   pptTmp++;

-	   pwidthTmp++;

-	   if(box.x1 > pptTmp->x) box.x1 = pptTmp->x;

-	   if(box.x2 < (pptTmp->x + *pwidthTmp))

-		box.x2 = pptTmp->x + *pwidthTmp;

-	   if(box.y1 > pptTmp->y) box.y1 = pptTmp->y;

-	   else if(box.y2 < pptTmp->y) box.y2 = pptTmp->y;

-	}

-

-	box.y2++;

-

-        if(!pGC->miTranslate) {

-           TRANSLATE_BOX(box, pDrawable);

-        }

-        TRIM_BOX(box, pGC); 

-

-	if(BOX_NOT_EMPTY(box))

-	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-    }

-    (*pGC->ops->SetSpans)(pDrawable, pGC, pcharsrc, ppt, pwidth, npt, fSorted);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-static void

-damagePutImage(DrawablePtr  pDrawable,

-	       GCPtr	    pGC,

-	       int	    depth,

-	       int	    x,

-	       int	    y,

-	       int	    w,

-	       int	    h,

-	       int	    leftPad,

-	       int	    format,

-	       char	    *pImage)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-    if (checkGCDamage (pDrawable, pGC))

-    {

-	BoxRec box;

-

-	box.x1 = x + pDrawable->x;

-	box.x2 = box.x1 + w;

-	box.y1 = y + pDrawable->y;

-	box.y2 = box.y1 + h;

-

-	TRIM_BOX(box, pGC);

-	if(BOX_NOT_EMPTY(box))

-	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-    }

-    (*pGC->ops->PutImage)(pDrawable, pGC, depth, x, y, w, h,

-		leftPad, format, pImage);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-static RegionPtr

-damageCopyArea(DrawablePtr   pSrc,

-	       DrawablePtr  pDst,

-	       GC	    *pGC,

-	       int	    srcx,

-	       int	    srcy,

-	       int	    width,

-	       int	    height,

-	       int	    dstx,

-	       int	    dsty)

-{

-    RegionPtr ret;

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDst);

-    

-    if (checkGCDamage (pDst, pGC))

-    {

-	BoxRec box;

-

-	box.x1 = dstx + pDst->x;

-	box.x2 = box.x1 + width;

-	box.y1 = dsty + pDst->y;

-	box.y2 = box.y1 + height;

-

-	TRIM_BOX(box, pGC);

-	if(BOX_NOT_EMPTY(box))

-	   damageDamageBox (pDst, &box, pGC->subWindowMode);

-    }

-

-    ret = (*pGC->ops->CopyArea)(pSrc, pDst,

-            pGC, srcx, srcy, width, height, dstx, dsty);

-    damageRegionProcessPending (pDst);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDst);

-    return ret;

-}

-

-static RegionPtr

-damageCopyPlane(DrawablePtr	pSrc,

-		DrawablePtr	pDst,

-		GCPtr		pGC,

-		int		srcx,

-		int		srcy,

-		int		width,

-		int		height,

-		int		dstx,

-		int		dsty,

-		unsigned long	bitPlane)

-{

-    RegionPtr ret;

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDst);

-

-    if (checkGCDamage (pDst, pGC))

-    {

-	BoxRec box;

-

-	box.x1 = dstx + pDst->x;

-	box.x2 = box.x1 + width;

-	box.y1 = dsty + pDst->y;

-	box.y2 = box.y1 + height;

-

-	TRIM_BOX(box, pGC);

-	if(BOX_NOT_EMPTY(box))

-	   damageDamageBox (pDst, &box, pGC->subWindowMode);

-    }

-

-    ret = (*pGC->ops->CopyPlane)(pSrc, pDst,

-	       pGC, srcx, srcy, width, height, dstx, dsty, bitPlane);

-    damageRegionProcessPending (pDst);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDst);

-    return ret;

-}

-

-static void

-damagePolyPoint(DrawablePtr pDrawable,

-		GCPtr	    pGC,

-		int	    mode,

-		int	    npt,

-		xPoint	    *ppt)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (npt && checkGCDamage (pDrawable, pGC))

-    {

-	BoxRec	box;

-	int	nptTmp = npt;

-	xPoint	*pptTmp = ppt;

-

-	box.x2 = box.x1 = pptTmp->x;

-	box.y2 = box.y1 = pptTmp->y;

-

-	/* this could be slow if the points were spread out */

-

-	while(--nptTmp) 

-	{

-	   pptTmp++;

-	   if(box.x1 > pptTmp->x) box.x1 = pptTmp->x;

-	   else if(box.x2 < pptTmp->x) box.x2 = pptTmp->x;

-	   if(box.y1 > pptTmp->y) box.y1 = pptTmp->y;

-	   else if(box.y2 < pptTmp->y) box.y2 = pptTmp->y;

-	}

-

-	box.x2++;

-	box.y2++;

-

-	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);

-	if(BOX_NOT_EMPTY(box))

-	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-    }

-    (*pGC->ops->PolyPoint)(pDrawable, pGC, mode, npt, ppt);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-static void

-damagePolylines(DrawablePtr pDrawable,

-		GCPtr	    pGC,

-		int	    mode,

-		int	    npt,

-		DDXPointPtr ppt)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (npt && checkGCDamage (pDrawable, pGC))

-    {

-	int	    nptTmp = npt;

-	DDXPointPtr pptTmp = ppt;

-	BoxRec	    box;

-	int	    extra = pGC->lineWidth >> 1;

-

-	box.x2 = box.x1 = pptTmp->x;

-	box.y2 = box.y1 = pptTmp->y;

-

-	if(nptTmp > 1) 

-	{

-	   if(pGC->joinStyle == JoinMiter)

-		extra = 6 * pGC->lineWidth;

-	   else if(pGC->capStyle == CapProjecting)

-		extra = pGC->lineWidth;

-        }

-

-	if(mode == CoordModePrevious) 

-	{

-	   int x = box.x1;

-	   int y = box.y1;

-	   while(--nptTmp) 

-	   {

-		pptTmp++;

-		x += pptTmp->x;

-		y += pptTmp->y;

-		if(box.x1 > x) box.x1 = x;

-		else if(box.x2 < x) box.x2 = x;

-		if(box.y1 > y) box.y1 = y;

-		else if(box.y2 < y) box.y2 = y;

-	    }

-	}

-	else 

-	{

-	   while(--nptTmp) 

-	   {

-		pptTmp++;

-		if(box.x1 > pptTmp->x) box.x1 = pptTmp->x;

-		else if(box.x2 < pptTmp->x) box.x2 = pptTmp->x;

-		if(box.y1 > pptTmp->y) box.y1 = pptTmp->y;

-		else if(box.y2 < pptTmp->y) box.y2 = pptTmp->y;

-	    }

-	}

-

-	box.x2++;

-	box.y2++;

-

-	if(extra) 

-	{

-	   box.x1 -= extra;

-	   box.x2 += extra;

-	   box.y1 -= extra;

-	   box.y2 += extra;

-        }

-

-	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);

-	if(BOX_NOT_EMPTY(box))

-	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-    }

-    (*pGC->ops->Polylines)(pDrawable, pGC, mode, npt, ppt);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-static void

-damagePolySegment(DrawablePtr	pDrawable,

-		  GCPtr		pGC,

-		  int		nSeg,

-		  xSegment	*pSeg)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (nSeg && checkGCDamage (pDrawable, pGC))

-    {

-	BoxRec	    box;

-	int	    extra = pGC->lineWidth;

-	int	    nsegTmp = nSeg;

-	xSegment    *pSegTmp = pSeg;

-

-        if(pGC->capStyle != CapProjecting)

-	   extra >>= 1;

-

-	if(pSegTmp->x2 > pSegTmp->x1) {

-	    box.x1 = pSegTmp->x1;

-	    box.x2 = pSegTmp->x2;

-	} else {

-	    box.x2 = pSegTmp->x1;

-	    box.x1 = pSegTmp->x2;

-	}

-

-	if(pSegTmp->y2 > pSegTmp->y1) {

-	    box.y1 = pSegTmp->y1;

-	    box.y2 = pSegTmp->y2;

-	} else {

-	    box.y2 = pSegTmp->y1;

-	    box.y1 = pSegTmp->y2;

-	}

-

-	while(--nsegTmp) 

-	{

-	    pSegTmp++;

-	    if(pSegTmp->x2 > pSegTmp->x1) 

-	    {

-		if(pSegTmp->x1 < box.x1) box.x1 = pSegTmp->x1;

-		if(pSegTmp->x2 > box.x2) box.x2 = pSegTmp->x2;

-	    }

-	    else 

-	    {

-		if(pSegTmp->x2 < box.x1) box.x1 = pSegTmp->x2;

-		if(pSegTmp->x1 > box.x2) box.x2 = pSegTmp->x1;

-	    }

-	    if(pSegTmp->y2 > pSegTmp->y1) 

-	    {

-		if(pSegTmp->y1 < box.y1) box.y1 = pSegTmp->y1;

-		if(pSegTmp->y2 > box.y2) box.y2 = pSegTmp->y2;

-	    }

-	    else

-	    {

-		if(pSegTmp->y2 < box.y1) box.y1 = pSegTmp->y2;

-		if(pSegTmp->y1 > box.y2) box.y2 = pSegTmp->y1;

-	    }

-	}

-

-	box.x2++;

-	box.y2++;

-

-	if(extra) 

-	{

-	   box.x1 -= extra;

-	   box.x2 += extra;

-	   box.y1 -= extra;

-	   box.y2 += extra;

-        }

-

-	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);

-	if(BOX_NOT_EMPTY(box))

-	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-    }

-    (*pGC->ops->PolySegment)(pDrawable, pGC, nSeg, pSeg);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-static void

-damagePolyRectangle(DrawablePtr  pDrawable,

-		    GCPtr        pGC,

-		    int	         nRects,

-		    xRectangle  *pRects)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (nRects && checkGCDamage (pDrawable, pGC))

-    {

-	BoxRec	    box;

-	int	    offset1, offset2, offset3;

-	int	    nRectsTmp = nRects;

-	xRectangle  *pRectsTmp = pRects;

-

-	offset2 = pGC->lineWidth;

-	if(!offset2) offset2 = 1;

-	offset1 = offset2 >> 1;

-	offset3 = offset2 - offset1;

-

-	while(nRectsTmp--)

-	{

-	    box.x1 = pRectsTmp->x - offset1;

-	    box.y1 = pRectsTmp->y - offset1;

-	    box.x2 = box.x1 + pRectsTmp->width + offset2;

-	    box.y2 = box.y1 + offset2;

-	    TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);

-	    if(BOX_NOT_EMPTY(box))

-		damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-

-	    box.x1 = pRectsTmp->x - offset1;

-	    box.y1 = pRectsTmp->y + offset3;

-	    box.x2 = box.x1 + offset2;

-	    box.y2 = box.y1 + pRectsTmp->height - offset2;

-	    TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);

-	    if(BOX_NOT_EMPTY(box))

-		damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-

-	    box.x1 = pRectsTmp->x + pRectsTmp->width - offset1;

-	    box.y1 = pRectsTmp->y + offset3;

-	    box.x2 = box.x1 + offset2;

-	    box.y2 = box.y1 + pRectsTmp->height - offset2;

-	    TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);

-	    if(BOX_NOT_EMPTY(box))

-		damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-

-	    box.x1 = pRectsTmp->x - offset1;

-	    box.y1 = pRectsTmp->y + pRectsTmp->height - offset1;

-	    box.x2 = box.x1 + pRectsTmp->width + offset2;

-	    box.y2 = box.y1 + offset2;

-	    TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);

-	    if(BOX_NOT_EMPTY(box))

-		damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-

-	    pRectsTmp++;

-	}

-    }

-    (*pGC->ops->PolyRectangle)(pDrawable, pGC, nRects, pRects);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-static void

-damagePolyArc(DrawablePtr   pDrawable,

-	      GCPtr	    pGC,

-	      int	    nArcs,

-	      xArc	    *pArcs)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (nArcs && checkGCDamage (pDrawable, pGC))

-    {

-	int	extra = pGC->lineWidth >> 1;

-	BoxRec	box;

-	int	nArcsTmp = nArcs;

-	xArc	*pArcsTmp = pArcs;

-

-	box.x1 = pArcsTmp->x;

-	box.x2 = box.x1 + pArcsTmp->width;

-	box.y1 = pArcsTmp->y;

-	box.y2 = box.y1 + pArcsTmp->height;

-

-	while(--nArcsTmp) 

-	{

-	    pArcsTmp++;

-	    if(box.x1 > pArcsTmp->x)

-		box.x1 = pArcsTmp->x;

-	    if(box.x2 < (pArcsTmp->x + pArcsTmp->width))

-		box.x2 = pArcsTmp->x + pArcsTmp->width;

-	    if(box.y1 > pArcsTmp->y) 

-		box.y1 = pArcsTmp->y;

-	    if(box.y2 < (pArcsTmp->y + pArcsTmp->height))

-		box.y2 = pArcsTmp->y + pArcsTmp->height;

-        }

-

-	if(extra) 

-	{

-	   box.x1 -= extra;

-	   box.x2 += extra;

-	   box.y1 -= extra;

-	   box.y2 += extra;

-        }

-

-	box.x2++;

-	box.y2++;

-

-	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);

-	if(BOX_NOT_EMPTY(box))

-	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-    }

-    (*pGC->ops->PolyArc)(pDrawable, pGC, nArcs, pArcs);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-static void

-damageFillPolygon(DrawablePtr	pDrawable,

-		  GCPtr		pGC,

-		  int		shape,

-		  int		mode,

-		  int		npt,

-		  DDXPointPtr	ppt)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (npt > 2 && checkGCDamage (pDrawable, pGC))

-    {

-	DDXPointPtr pptTmp = ppt;

-	int	    nptTmp = npt;

-	BoxRec	    box;

-

-	box.x2 = box.x1 = pptTmp->x;

-	box.y2 = box.y1 = pptTmp->y;

-

-	if(mode != CoordModeOrigin) 

-	{

-	   int x = box.x1;

-	   int y = box.y1;

-	   while(--nptTmp) 

-	   {

-		pptTmp++;

-		x += pptTmp->x;

-		y += pptTmp->y;

-		if(box.x1 > x) box.x1 = x;

-		else if(box.x2 < x) box.x2 = x;

-		if(box.y1 > y) box.y1 = y;

-		else if(box.y2 < y) box.y2 = y;

-	    }

-	}

-	else 

-	{

-	   while(--nptTmp) 

-	   {

-		pptTmp++;

-		if(box.x1 > pptTmp->x) box.x1 = pptTmp->x;

-		else if(box.x2 < pptTmp->x) box.x2 = pptTmp->x;

-		if(box.y1 > pptTmp->y) box.y1 = pptTmp->y;

-		else if(box.y2 < pptTmp->y) box.y2 = pptTmp->y;

-	    }

-	}

-

-	box.x2++;

-	box.y2++;

-

-	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);

-	if(BOX_NOT_EMPTY(box))

-	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-    }

-    

-    (*pGC->ops->FillPolygon)(pDrawable, pGC, shape, mode, npt, ppt);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-

-static void

-damagePolyFillRect(DrawablePtr	pDrawable,

-		   GCPtr	pGC,

-		   int		nRects,

-		   xRectangle	*pRects)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-    if (nRects && checkGCDamage (pDrawable, pGC))

-    {

-	BoxRec	    box;

-	xRectangle  *pRectsTmp = pRects;

-	int	    nRectsTmp = nRects;

-

-	box.x1 = pRectsTmp->x;

-	box.x2 = box.x1 + (short)pRectsTmp->width;

-	box.y1 = pRectsTmp->y;

-	box.y2 = box.y1 + (short)pRectsTmp->height;

-

-	while(--nRectsTmp) 

-	{

-	    pRectsTmp++;

-	    if(box.x1 > pRectsTmp->x) box.x1 = pRectsTmp->x;

-	    if(box.x2 < (pRectsTmp->x + pRectsTmp->width))

-		box.x2 = pRectsTmp->x + pRectsTmp->width;

-	    if(box.y1 > pRectsTmp->y) box.y1 = pRectsTmp->y;

-	    if(box.y2 < (pRectsTmp->y + pRectsTmp->height))

-		box.y2 = pRectsTmp->y + pRectsTmp->height;

-	}

-

-	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);

-	if(BOX_NOT_EMPTY(box))

-	    damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-    }

-    (*pGC->ops->PolyFillRect)(pDrawable, pGC, nRects, pRects);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-

-static void

-damagePolyFillArc(DrawablePtr	pDrawable,

-		  GCPtr		pGC,

-		  int		nArcs,

-		  xArc		*pArcs)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (nArcs && checkGCDamage (pDrawable, pGC))

-    {

-	BoxRec	box;

-	int	nArcsTmp = nArcs;

-	xArc	*pArcsTmp = pArcs;

-

-	box.x1 = pArcsTmp->x;

-	box.x2 = box.x1 + pArcsTmp->width;

-	box.y1 = pArcsTmp->y;

-	box.y2 = box.y1 + pArcsTmp->height;

-

-	while(--nArcsTmp) 

-	{

-	    pArcsTmp++;

-	    if(box.x1 > pArcsTmp->x)

-		box.x1 = pArcsTmp->x;

-	    if(box.x2 < (pArcsTmp->x + pArcsTmp->width))

-		box.x2 = pArcsTmp->x + pArcsTmp->width;

-	    if(box.y1 > pArcsTmp->y)

-		box.y1 = pArcsTmp->y;

-	    if(box.y2 < (pArcsTmp->y + pArcsTmp->height))

-		box.y2 = pArcsTmp->y + pArcsTmp->height;

-        }

-

-	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);

-	if(BOX_NOT_EMPTY(box))

-	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-    }

-    (*pGC->ops->PolyFillArc)(pDrawable, pGC, nArcs, pArcs);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-/*

- * general Poly/Image text function.  Extract glyph information,

- * compute bounding box and remove cursor if it is overlapped.

- */

-

-static void

-damageDamageChars (DrawablePtr	pDrawable,

-		   FontPtr	font,

-		   int		x,

-		   int		y,

-		   unsigned int	n,

-		   CharInfoPtr	*charinfo,

-		   Bool		imageblt,

-		   int		subWindowMode)

-{

-    ExtentInfoRec   extents;

-    BoxRec	    box;

-

-    QueryGlyphExtents(font, charinfo, n, &extents);

-    if (imageblt)

-    {

-	if (extents.overallWidth > extents.overallRight)

-	    extents.overallRight = extents.overallWidth;

-	if (extents.overallWidth < extents.overallLeft)

-	    extents.overallLeft = extents.overallWidth;

-	if (extents.overallLeft > 0)

-	    extents.overallLeft = 0;

-	if (extents.fontAscent > extents.overallAscent)

-	    extents.overallAscent = extents.fontAscent;

-	if (extents.fontDescent > extents.overallDescent)

-	    extents.overallDescent = extents.fontDescent;

-    }

-    box.x1 = x + extents.overallLeft;

-    box.y1 = y - extents.overallAscent;

-    box.x2 = x + extents.overallRight;

-    box.y2 = y + extents.overallDescent;

-    damageDamageBox (pDrawable, &box, subWindowMode);

-}

-

-/*

- * values for textType:

- */

-#define TT_POLY8   0

-#define TT_IMAGE8  1

-#define TT_POLY16  2

-#define TT_IMAGE16 3

-

-static int 

-damageText (DrawablePtr	    pDrawable,

-	    GCPtr	    pGC,

-	    int		    x,

-	    int		    y,

-	    unsigned long   count,

-	    char	    *chars,

-	    FontEncoding    fontEncoding,

-	    Bool	    textType)

-{

-    CharInfoPtr	    *charinfo;

-    CharInfoPtr	    *info;

-    unsigned long   i;

-    unsigned int    n;

-    int		    w;

-    Bool	    imageblt;

-

-    imageblt = (textType == TT_IMAGE8) || (textType == TT_IMAGE16);

-

-    charinfo = malloc(count * sizeof(CharInfoPtr));

-    if (!charinfo)

-	return x;

-

-    GetGlyphs(pGC->font, count, (unsigned char *)chars,

-	      fontEncoding, &i, charinfo);

-    n = (unsigned int)i;

-    w = 0;

-    if (!imageblt)

-	for (info = charinfo; i--; info++)

-	    w += (*info)->metrics.characterWidth;

-

-    if (n != 0) {

-	damageDamageChars (pDrawable, pGC->font, x + pDrawable->x, y + pDrawable->y, n,

-			   charinfo, imageblt, pGC->subWindowMode);

-	if (imageblt)

-	    (*pGC->ops->ImageGlyphBlt)(pDrawable, pGC, x, y, n, charinfo,

-				       FONTGLYPHS(pGC->font));

-	else

-	    (*pGC->ops->PolyGlyphBlt)(pDrawable, pGC, x, y, n, charinfo,

-				      FONTGLYPHS(pGC->font));

-    }

-    free(charinfo);

-    return x + w;

-}

-

-static int

-damagePolyText8(DrawablePtr pDrawable,

-		GCPtr	    pGC,

-		int	    x,

-		int	    y,

-		int	    count,

-		char	    *chars)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (checkGCDamage (pDrawable, pGC))

-	x = damageText (pDrawable, pGC, x, y, (unsigned long) count, chars,

-		    Linear8Bit, TT_POLY8);

-    else

-	x = (*pGC->ops->PolyText8)(pDrawable, pGC, x, y, count, chars);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-    return x;

-}

-

-static int

-damagePolyText16(DrawablePtr	pDrawable,

-		 GCPtr		pGC,

-		 int		x,

-		 int		y,

-		 int		count,

-		 unsigned short	*chars)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (checkGCDamage (pDrawable, pGC))

-	x = damageText (pDrawable, pGC, x, y, (unsigned long) count, (char *) chars,

-		    FONTLASTROW(pGC->font) == 0 ? Linear16Bit : TwoD16Bit,

-		    TT_POLY16);

-    else

-	x = (*pGC->ops->PolyText16)(pDrawable, pGC, x, y, count, chars);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-    return x;

-}

-

-static void

-damageImageText8(DrawablePtr	pDrawable,

-		 GCPtr		pGC,

-		 int		x,

-		 int		y,

-		 int		count,

-		 char		*chars)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (checkGCDamage (pDrawable, pGC))

-	damageText (pDrawable, pGC, x, y, (unsigned long) count, chars,

-		    Linear8Bit, TT_IMAGE8);

-    else

-	(*pGC->ops->ImageText8)(pDrawable, pGC, x, y, count, chars);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-static void

-damageImageText16(DrawablePtr	pDrawable,

-		  GCPtr		pGC,

-		  int		x,

-		  int		y,

-		  int		count,

-		  unsigned short *chars)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-

-    if (checkGCDamage (pDrawable, pGC))

-	damageText (pDrawable, pGC, x, y, (unsigned long) count, (char *) chars,

-		    FONTLASTROW(pGC->font) == 0 ? Linear16Bit : TwoD16Bit,

-		    TT_IMAGE16);

-    else

-	(*pGC->ops->ImageText16)(pDrawable, pGC, x, y, count, chars);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-

-static void

-damageImageGlyphBlt(DrawablePtr	    pDrawable,

-		    GCPtr	    pGC,

-		    int		    x,

-		    int		    y,

-		    unsigned int    nglyph,

-		    CharInfoPtr	    *ppci,

-		    pointer	    pglyphBase)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-    damageDamageChars (pDrawable, pGC->font, x + pDrawable->x, y + pDrawable->y,

-		       nglyph, ppci, TRUE, pGC->subWindowMode);

-    (*pGC->ops->ImageGlyphBlt)(pDrawable, pGC, x, y, nglyph,

-					ppci, pglyphBase);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-static void

-damagePolyGlyphBlt(DrawablePtr	pDrawable,

-		   GCPtr	pGC,

-		   int		x,

-		   int		y,

-		   unsigned int	nglyph,

-		   CharInfoPtr	*ppci,

-		   pointer	pglyphBase)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-    damageDamageChars (pDrawable, pGC->font, x + pDrawable->x, y + pDrawable->y,

-		       nglyph, ppci, FALSE, pGC->subWindowMode);

-    (*pGC->ops->PolyGlyphBlt)(pDrawable, pGC, x, y, nglyph,

-				ppci, pglyphBase);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-static void

-damagePushPixels(GCPtr		pGC,

-		 PixmapPtr	pBitMap,

-		 DrawablePtr	pDrawable,

-		 int		dx,

-		 int		dy,

-		 int		xOrg,

-		 int		yOrg)

-{

-    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);

-    if(checkGCDamage (pDrawable, pGC))

-    {

-	BoxRec box;

-

-        box.x1 = xOrg;

-        box.y1 = yOrg;

-

-        if(!pGC->miTranslate) {

-           box.x1 += pDrawable->x;          

-           box.y1 += pDrawable->y;          

-        }

-

-	box.x2 = box.x1 + dx;

-	box.y2 = box.y1 + dy;

-

-	TRIM_BOX(box, pGC);

-	if(BOX_NOT_EMPTY(box))

-	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);

-    }

-    (*pGC->ops->PushPixels)(pGC, pBitMap, pDrawable, dx, dy, xOrg, yOrg);

-    damageRegionProcessPending (pDrawable);

-    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);

-}

-

-static void

-damageRemoveDamage (DamagePtr *pPrev, DamagePtr pDamage)

-{

-    while (*pPrev)

-    {

-	if (*pPrev == pDamage)

-	{

-	    *pPrev = pDamage->pNext;

-	    return;

-	}

-	pPrev = &(*pPrev)->pNext;

-    }

-#if DAMAGE_VALIDATE_ENABLE

-    ErrorF ("Damage not on list\n");

-    OsAbort ();

-#endif

-}

-

-static void

-damageInsertDamage (DamagePtr *pPrev, DamagePtr pDamage)

-{

-#if DAMAGE_VALIDATE_ENABLE

-    DamagePtr	pOld;

-

-    for (pOld = *pPrev; pOld; pOld = pOld->pNext)

-	if (pOld == pDamage) {

-	    ErrorF ("Damage already on list\n");

-	    OsAbort ();

-	}

-#endif

-    pDamage->pNext = *pPrev;

-    *pPrev = pDamage;

-}

-

-static Bool

-damageDestroyPixmap (PixmapPtr pPixmap)

-{

-    ScreenPtr	pScreen = pPixmap->drawable.pScreen;

-    damageScrPriv(pScreen);

-

-    if (pPixmap->refcnt == 1)

-    {

-	DamagePtr	*pPrev = getPixmapDamageRef (pPixmap);

-	DamagePtr	pDamage;

-

-	while ((pDamage = *pPrev))

-	{

-	    damageRemoveDamage (pPrev, pDamage);

-	    if (!pDamage->isWindow)

-		DamageDestroy (pDamage);

-	}

-    }

-    unwrap (pScrPriv, pScreen, DestroyPixmap);

-    (*pScreen->DestroyPixmap) (pPixmap);

-    wrap (pScrPriv, pScreen, DestroyPixmap, damageDestroyPixmap);

-    return TRUE;

-}

-

-static void

-damageCopyWindow(WindowPtr	pWindow,

-		 DDXPointRec	ptOldOrg,

-		 RegionPtr	prgnSrc)

-{

-    ScreenPtr pScreen = pWindow->drawable.pScreen;

-    damageScrPriv(pScreen);

-

-    if (getWindowDamage (pWindow))

-    {

-	int dx = pWindow->drawable.x - ptOldOrg.x;

-	int dy = pWindow->drawable.y - ptOldOrg.y;

-	

-	/*

-	 * The region comes in source relative, but the damage occurs

-	 * at the destination location.  Translate back and forth.

-	 */

-	RegionTranslate(prgnSrc, dx, dy);

-	damageRegionAppend (&pWindow->drawable, prgnSrc, FALSE, -1);

-	RegionTranslate(prgnSrc, -dx, -dy);

-    }

-    unwrap (pScrPriv, pScreen, CopyWindow);

-    (*pScreen->CopyWindow) (pWindow, ptOldOrg, prgnSrc);

-    damageRegionProcessPending (&pWindow->drawable);

-    wrap (pScrPriv, pScreen, CopyWindow, damageCopyWindow);

-}

-

-static GCOps damageGCOps = {

-    damageFillSpans, damageSetSpans,

-    damagePutImage, damageCopyArea,

-    damageCopyPlane, damagePolyPoint,

-    damagePolylines, damagePolySegment,

-    damagePolyRectangle, damagePolyArc,

-    damageFillPolygon, damagePolyFillRect,

-    damagePolyFillArc, damagePolyText8,

-    damagePolyText16, damageImageText8,

-    damageImageText16, damageImageGlyphBlt,

-    damagePolyGlyphBlt, damagePushPixels,

-};

-

-static void

-damageSetWindowPixmap (WindowPtr pWindow, PixmapPtr pPixmap)

-{

-    DamagePtr	pDamage;

-    ScreenPtr	pScreen = pWindow->drawable.pScreen;

-    damageScrPriv(pScreen);

-

-    if ((pDamage = damageGetWinPriv(pWindow)))

-    {

-	PixmapPtr   pOldPixmap = (*pScreen->GetWindowPixmap) (pWindow);

-	DamagePtr   *pPrev = getPixmapDamageRef(pOldPixmap);

-	

-	while (pDamage)

-	{

-	    damageRemoveDamage (pPrev, pDamage);

-	    pDamage = pDamage->pNextWin;

-	}

-    }

-    unwrap (pScrPriv, pScreen, SetWindowPixmap);

-    (*pScreen->SetWindowPixmap) (pWindow, pPixmap);

-    wrap (pScrPriv, pScreen, SetWindowPixmap, damageSetWindowPixmap);

-    if ((pDamage = damageGetWinPriv(pWindow)))

-    {

-	DamagePtr   *pPrev = getPixmapDamageRef(pPixmap);

-	

-	while (pDamage)

-	{

-	    damageInsertDamage (pPrev, pDamage);

-	    pDamage = pDamage->pNextWin;

-	}

-    }

-}

-

-static Bool

-damageDestroyWindow (WindowPtr pWindow)

-{

-    DamagePtr	pDamage;

-    ScreenPtr	pScreen = pWindow->drawable.pScreen;

-    Bool	ret;

-    damageScrPriv(pScreen);

-

-    while ((pDamage = damageGetWinPriv(pWindow)))

-    {

-	DamageUnregister (&pWindow->drawable, pDamage);

-	DamageDestroy (pDamage);

-    }

-    unwrap (pScrPriv, pScreen, DestroyWindow);

-    ret = (*pScreen->DestroyWindow) (pWindow);

-    wrap (pScrPriv, pScreen, DestroyWindow, damageDestroyWindow);

-    return ret;

-}

-

-static Bool

-damageCloseScreen (int i, ScreenPtr pScreen)

-{

-    damageScrPriv(pScreen);

-

-    unwrap (pScrPriv, pScreen, DestroyPixmap);

-    unwrap (pScrPriv, pScreen, CreateGC);

-    unwrap (pScrPriv, pScreen, CopyWindow);

-    unwrap (pScrPriv, pScreen, CloseScreen);

-    free(pScrPriv);

-    return (*pScreen->CloseScreen) (i, pScreen);

-}

-

-/**

- * Default implementations of the damage management functions.

- */

-void miDamageCreate (DamagePtr pDamage)

-{

-}

-

-void miDamageRegister (DrawablePtr pDrawable, DamagePtr pDamage)

-{

-}

-

-void miDamageUnregister (DrawablePtr pDrawable, DamagePtr pDamage)

-{

-}

-

-void miDamageDestroy (DamagePtr pDamage)

-{

-}

-

-/**

- * Public functions for consumption outside this file.

- */

-

-Bool

-DamageSetup (ScreenPtr pScreen)

-{

-    DamageScrPrivPtr	pScrPriv;

-    PictureScreenPtr	ps = GetPictureScreenIfSet(pScreen);

-    const DamageScreenFuncsRec miFuncs = {

-	miDamageCreate, miDamageRegister, miDamageUnregister, miDamageDestroy

-    };

-

-    if (!dixRegisterPrivateKey(&damageScrPrivateKeyRec, PRIVATE_SCREEN, 0))

-	return FALSE;

-

-    if (dixLookupPrivate(&pScreen->devPrivates, damageScrPrivateKey))

-	return TRUE;

-

-    if (!dixRegisterPrivateKey(&damageGCPrivateKeyRec, PRIVATE_GC, sizeof(DamageGCPrivRec)))

-	return FALSE;

-

-    if (!dixRegisterPrivateKey(&damagePixPrivateKeyRec, PRIVATE_PIXMAP, 0))

-	return FALSE;

-

-    if (!dixRegisterPrivateKey(&damageWinPrivateKeyRec, PRIVATE_WINDOW, 0))

-	return FALSE;

-

-    pScrPriv = malloc(sizeof (DamageScrPrivRec));

-    if (!pScrPriv)

-	return FALSE;

-

-    pScrPriv->internalLevel = 0;

-    pScrPriv->pScreenDamage = 0;

-

-    wrap (pScrPriv, pScreen, DestroyPixmap, damageDestroyPixmap);

-    wrap (pScrPriv, pScreen, CreateGC, damageCreateGC);

-    wrap (pScrPriv, pScreen, DestroyWindow, damageDestroyWindow);

-    wrap (pScrPriv, pScreen, SetWindowPixmap, damageSetWindowPixmap);

-    wrap (pScrPriv, pScreen, CopyWindow, damageCopyWindow);

-    wrap (pScrPriv, pScreen, CloseScreen, damageCloseScreen);

-    if (ps) {

-	wrap (pScrPriv, ps, Glyphs, damageGlyphs);

-	wrap (pScrPriv, ps, Composite, damageComposite);

-	wrap (pScrPriv, ps, AddTraps, damageAddTraps);

-    }

-

-    pScrPriv->funcs = miFuncs;

-

-    dixSetPrivate(&pScreen->devPrivates, damageScrPrivateKey, pScrPriv);

-    return TRUE;

-}

-

-DamagePtr

-DamageCreate (DamageReportFunc  damageReport,

-	      DamageDestroyFunc	damageDestroy,

-	      DamageReportLevel	damageLevel,

-	      Bool		isInternal,

-	      ScreenPtr		pScreen,

-	      void		*closure)

-{

-    damageScrPriv(pScreen);

-    DamagePtr	pDamage;

-

-    pDamage = dixAllocateObjectWithPrivates(DamageRec, PRIVATE_DAMAGE);

-    if (!pDamage)

-	return 0;

-    pDamage->pNext = 0;

-    pDamage->pNextWin = 0;

-    RegionNull(&pDamage->damage);

-    RegionNull(&pDamage->pendingDamage);

-    

-    pDamage->damageLevel = damageLevel;

-    pDamage->isInternal = isInternal;

-    pDamage->closure = closure;

-    pDamage->isWindow = FALSE;

-    pDamage->pDrawable = 0;

-    pDamage->reportAfter = FALSE;

-

-    pDamage->damageReport = damageReport;

-    pDamage->damageReportPostRendering = NULL;

-    pDamage->damageDestroy = damageDestroy;

-    pDamage->damageMarker = NULL;

-    pDamage->pScreen = pScreen;

-

-    (*pScrPriv->funcs.Create) (pDamage);

-

-    return pDamage;

-}

-

-void

-DamageRegister (DrawablePtr pDrawable,

-		DamagePtr   pDamage)

-{

-    ScreenPtr pScreen = pDrawable->pScreen;

-    damageScrPriv(pScreen);

-

-#if DAMAGE_VALIDATE_ENABLE

-    if (pDrawable->pScreen != pDamage->pScreen)

-    {

-	ErrorF ("DamageRegister called with mismatched screens\n");

-	OsAbort ();

-    }

-#endif

-

-    if (pDrawable->type == DRAWABLE_WINDOW)

-    {

-	WindowPtr   pWindow = (WindowPtr) pDrawable;

-	winDamageRef(pWindow);

-

-#if DAMAGE_VALIDATE_ENABLE

-	DamagePtr   pOld;

-	

-	for (pOld = *pPrev; pOld; pOld = pOld->pNextWin)

-	    if (pOld == pDamage) {

-		ErrorF ("Damage already on window list\n");

-		OsAbort ();

-	    }

-#endif

-	pDamage->pNextWin = *pPrev;

-	*pPrev = pDamage;

-	pDamage->isWindow = TRUE;

-    }

-    else

-	pDamage->isWindow = FALSE;

-    pDamage->pDrawable = pDrawable;

-    damageInsertDamage (getDrawableDamageRef (pDrawable), pDamage);

-    (*pScrPriv->funcs.Register) (pDrawable, pDamage);

-}

-

-void

-DamageDrawInternal (ScreenPtr pScreen, Bool enable)

-{

-    damageScrPriv (pScreen);

-

-    pScrPriv->internalLevel += enable ? 1 : -1;

-}

-

-void

-DamageUnregister (DrawablePtr	    pDrawable,

-		  DamagePtr	    pDamage)

-{

-    ScreenPtr pScreen = pDrawable->pScreen;

-    damageScrPriv(pScreen);

-

-    (*pScrPriv->funcs.Unregister) (pDrawable, pDamage);

-

-    if (pDrawable->type == DRAWABLE_WINDOW)

-    {

-	WindowPtr   pWindow = (WindowPtr) pDrawable;

-	winDamageRef (pWindow);

-#if DAMAGE_VALIDATE_ENABLE

-	int	found = 0;

-#endif

-

-	while (*pPrev)

-	{

-	    if (*pPrev == pDamage)

-	    {

-		*pPrev = pDamage->pNextWin;

-#if DAMAGE_VALIDATE_ENABLE

-		found = 1;

-#endif

-		break;

-	    }

-	    pPrev = &(*pPrev)->pNextWin;

-	}

-#if DAMAGE_VALIDATE_ENABLE

-	if (!found) {

-	    ErrorF ("Damage not on window list\n");

-	    OsAbort ();

-	}

-#endif

-    }

-    pDamage->pDrawable = 0;

-    damageRemoveDamage (getDrawableDamageRef (pDrawable), pDamage);

-}

-

-void

-DamageDestroy (DamagePtr    pDamage)

-{

-    ScreenPtr pScreen = pDamage->pScreen;

-    damageScrPriv(pScreen);

-

-    if (pDamage->damageDestroy)

-	(*pDamage->damageDestroy) (pDamage, pDamage->closure);

-    (*pScrPriv->funcs.Destroy) (pDamage);

-    RegionUninit(&pDamage->damage);

-    RegionUninit(&pDamage->pendingDamage);

-    dixFreeObjectWithPrivates(pDamage, PRIVATE_DAMAGE);

-}

-

-Bool

-DamageSubtract (DamagePtr	    pDamage,

-		const RegionPtr	    pRegion)

-{

-    RegionPtr	pClip;

-    RegionRec	pixmapClip;

-    DrawablePtr	pDrawable = pDamage->pDrawable;

-    

-    RegionSubtract(&pDamage->damage, &pDamage->damage, pRegion);

-    if (pDrawable)

-    {

-	if (pDrawable->type == DRAWABLE_WINDOW)

-	    pClip = &((WindowPtr) pDrawable)->borderClip;

-	else

-	{

-	    BoxRec  box;

-

-	    box.x1 = pDrawable->x;

-	    box.y1 = pDrawable->y;

-	    box.x2 = pDrawable->x + pDrawable->width;

-	    box.y2 = pDrawable->y + pDrawable->height;

-	    RegionInit(&pixmapClip, &box, 1);

-	    pClip = &pixmapClip;

-	}

-	RegionTranslate(&pDamage->damage, pDrawable->x, pDrawable->y);

-	RegionIntersect(&pDamage->damage, &pDamage->damage, pClip);

-	RegionTranslate(&pDamage->damage, -pDrawable->x, -pDrawable->y);

-	if (pDrawable->type != DRAWABLE_WINDOW)

-	    RegionUninit(&pixmapClip);

-    }

-    return RegionNotEmpty(&pDamage->damage);

-}

-

-void

-DamageEmpty (DamagePtr	    pDamage)

-{

-    RegionEmpty(&pDamage->damage);

-}

-

-RegionPtr

-DamageRegion (DamagePtr		    pDamage)

-{

-    return &pDamage->damage;

-}

-

-RegionPtr

-DamagePendingRegion (DamagePtr	    pDamage)

-{

-    return &pDamage->pendingDamage;

-}

-

-void

-DamageRegionAppend (DrawablePtr pDrawable, RegionPtr pRegion)

-{

-    damageRegionAppend (pDrawable, pRegion, FALSE, -1);

-}

-

-void

-DamageRegionProcessPending (DrawablePtr pDrawable)

-{

-    damageRegionProcessPending (pDrawable);

-}

-

-/* If a damage marker is provided, then this function must be called after rendering is done. */

-/* Please do call back so any future enhancements can assume this function is called. */

-/* There are no strict timing requirements for calling this function, just as soon as (is cheaply) possible. */

-void

-DamageRegionRendered (DrawablePtr pDrawable, DamagePtr pDamage, RegionPtr pOldDamage, RegionPtr pRegion)

-{

-    if (pDamage->damageReportPostRendering)

-	damageReportDamagePostRendering (pDamage, pOldDamage, pRegion);

-}

-

-/* This call is very odd, i'm leaving it intact for API sake, but please don't use it. */

-void

-DamageDamageRegion (DrawablePtr	pDrawable,

-		    const RegionPtr	pRegion)

-{

-    damageRegionAppend (pDrawable, pRegion, FALSE, -1);

-

-    /* Go back and report this damage for DamagePtrs with reportAfter set, since

-     * this call isn't part of an in-progress drawing op in the call chain and

-     * the DDX probably just wants to know about it right away.

-     */

-    damageRegionProcessPending (pDrawable);

-}

-

-void

-DamageSetReportAfterOp (DamagePtr pDamage, Bool reportAfter)

-{

-    pDamage->reportAfter = reportAfter;

-}

-

-void

-DamageSetPostRenderingFunctions(DamagePtr pDamage, DamageReportFunc damageReportPostRendering,

-				DamageMarkerFunc damageMarker)

-{

-    pDamage->damageReportPostRendering = damageReportPostRendering;

-    pDamage->damageMarker = damageMarker;

-}

-

-DamageScreenFuncsPtr

-DamageGetScreenFuncs (ScreenPtr pScreen)

-{

-    damageScrPriv(pScreen);

-    return &pScrPriv->funcs;

-}

-

-void

-DamageReportDamage (DamagePtr pDamage, RegionPtr pDamageRegion)

-{

-    BoxRec tmpBox;

-    RegionRec tmpRegion;

-    Bool was_empty;

-

-    switch (pDamage->damageLevel) {

-    case DamageReportRawRegion:

-	RegionUnion(&pDamage->damage, &pDamage->damage,

-			 pDamageRegion);

-	(*pDamage->damageReport) (pDamage, pDamageRegion, pDamage->closure);

-	break;

-    case DamageReportDeltaRegion:

-	RegionNull(&tmpRegion);

-	RegionSubtract(&tmpRegion, pDamageRegion, &pDamage->damage);

-	if (RegionNotEmpty(&tmpRegion)) {

-	    RegionUnion(&pDamage->damage, &pDamage->damage,

-			 pDamageRegion);

-	    (*pDamage->damageReport) (pDamage, &tmpRegion, pDamage->closure);

-	}

-	RegionUninit(&tmpRegion);

-	break;

-    case DamageReportBoundingBox:

-	tmpBox = *RegionExtents(&pDamage->damage);

-	RegionUnion(&pDamage->damage, &pDamage->damage,

-		     pDamageRegion);

-	if (!BOX_SAME (&tmpBox, RegionExtents(&pDamage->damage))) {

-	    (*pDamage->damageReport) (pDamage, &pDamage->damage,

-				      pDamage->closure);

-	}

-	break;

-    case DamageReportNonEmpty:

-	was_empty = !RegionNotEmpty(&pDamage->damage);

-	RegionUnion(&pDamage->damage, &pDamage->damage,

-		     pDamageRegion);

-	if (was_empty && RegionNotEmpty(&pDamage->damage)) {

-	    (*pDamage->damageReport) (pDamage, &pDamage->damage,

-				      pDamage->closure);

-	}

-	break;

-    case DamageReportNone:

-	RegionUnion(&pDamage->damage, &pDamage->damage,

-		     pDamageRegion);

-	break;

-    }

-}

-

+/*
+ * Copyright © 2003 Keith Packard
+ *
+ * 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, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Keith Packard makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD 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.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <stdlib.h>
+
+#include    <X11/X.h>
+#include    "scrnintstr.h"
+#include    "windowstr.h"
+#include    <X11/fonts/font.h>
+#include    "dixfontstr.h"
+#include    <X11/fonts/fontstruct.h>
+#include    "mi.h"
+#include    "regionstr.h"
+#include    "globals.h"
+#include    "gcstruct.h"
+#include    "damage.h"
+#include    "damagestr.h"
+#ifdef COMPOSITE
+#include    "cw.h"
+#endif
+
+#define wrap(priv, real, mem, func) {\
+    priv->mem = real->mem; \
+    real->mem = func; \
+}
+
+#define unwrap(priv, real, mem) {\
+    real->mem = priv->mem; \
+}
+
+#define BOX_SAME(a,b) \
+    ((a)->x1 == (b)->x1 && \
+     (a)->y1 == (b)->y1 && \
+     (a)->x2 == (b)->x2 && \
+     (a)->y2 == (b)->y2)
+
+#define DAMAGE_VALIDATE_ENABLE 0
+#define DAMAGE_DEBUG_ENABLE 0
+#if DAMAGE_DEBUG_ENABLE
+#define DAMAGE_DEBUG(x)	ErrorF x
+#else
+#define DAMAGE_DEBUG(x)
+#endif
+
+#define getPixmapDamageRef(pPixmap) ((DamagePtr *) \
+    dixLookupPrivateAddr(&(pPixmap)->devPrivates, damagePixPrivateKey))
+
+#define pixmapDamage(pPixmap)		damagePixPriv(pPixmap)
+
+static DevPrivateKeyRec damageScrPrivateKeyRec;
+#define damageScrPrivateKey (&damageScrPrivateKeyRec)
+static DevPrivateKeyRec damagePixPrivateKeyRec;
+#define damagePixPrivateKey (&damagePixPrivateKeyRec)
+static DevPrivateKeyRec damageGCPrivateKeyRec;
+#define damageGCPrivateKey (&damageGCPrivateKeyRec)
+static DevPrivateKeyRec damageWinPrivateKeyRec;
+#define damageWinPrivateKey (&damageWinPrivateKeyRec)
+
+static DamagePtr *
+getDrawableDamageRef (DrawablePtr pDrawable)
+{
+    PixmapPtr   pPixmap;
+    
+    if (WindowDrawable(pDrawable->type))
+    {
+	ScreenPtr   pScreen = pDrawable->pScreen;
+
+	pPixmap = 0;
+	if (pScreen->GetWindowPixmap
+#ifdef ROOTLESS_WORKAROUND
+	    && ((WindowPtr)pDrawable)->viewable
+#endif
+	    )
+	    pPixmap = (*pScreen->GetWindowPixmap) ((WindowPtr)pDrawable);
+
+	if (!pPixmap)
+	{
+	    damageScrPriv(pScreen);
+
+	    return &pScrPriv->pScreenDamage;
+	}
+    }
+    else
+	pPixmap = (PixmapPtr) pDrawable;
+    return getPixmapDamageRef (pPixmap);
+}
+
+#define getDrawableDamage(pDrawable)	(*getDrawableDamageRef (pDrawable))
+#define getWindowDamage(pWin)		getDrawableDamage(&(pWin)->drawable)
+
+#define drawableDamage(pDrawable)	\
+    DamagePtr	pDamage = getDrawableDamage(pDrawable)
+
+#define windowDamage(pWin)		drawableDamage(&(pWin)->drawable)
+
+#define winDamageRef(pWindow) \
+    DamagePtr	*pPrev = (DamagePtr *) \
+	dixLookupPrivateAddr(&(pWindow)->devPrivates, damageWinPrivateKey)
+
+static void
+damageReportDamagePostRendering (DamagePtr pDamage, RegionPtr pOldDamage, RegionPtr pDamageRegion)
+{
+    BoxRec tmpBox;
+    RegionRec tmpRegion, newDamage;
+    Bool was_empty;
+
+    RegionUnion(&newDamage, pOldDamage, pDamageRegion);
+
+    switch (pDamage->damageLevel) {
+    case DamageReportRawRegion:
+	(*pDamage->damageReportPostRendering) (pDamage, pDamageRegion, pDamage->closure);
+	break;
+    case DamageReportDeltaRegion:
+	RegionNull(&tmpRegion);
+	RegionSubtract(&tmpRegion, pDamageRegion, pOldDamage);
+	if (RegionNotEmpty(&tmpRegion)) {
+	    (*pDamage->damageReportPostRendering) (pDamage, &tmpRegion, pDamage->closure);
+	}
+	RegionUninit(&tmpRegion);
+	break;
+    case DamageReportBoundingBox:
+	tmpBox = *RegionExtents(pOldDamage);
+	if (!BOX_SAME (&tmpBox, RegionExtents(&newDamage))) {
+	    (*pDamage->damageReportPostRendering) (pDamage, &newDamage,
+				      pDamage->closure);
+	}
+	break;
+    case DamageReportNonEmpty:
+	was_empty = !RegionNotEmpty(pOldDamage);
+	if (was_empty && RegionNotEmpty(&newDamage)) {
+	    (*pDamage->damageReportPostRendering) (pDamage, &newDamage,
+				      pDamage->closure);
+	}
+	break;
+    case DamageReportNone:
+	break;
+    }
+
+    RegionUninit(&newDamage);
+}
+
+#if DAMAGE_DEBUG_ENABLE
+static void
+_damageRegionAppend (DrawablePtr pDrawable, RegionPtr pRegion, Bool clip, int subWindowMode, const char *where)
+#define damageRegionAppend(d,r,c,m) _damageRegionAppend(d,r,c,m,__FUNCTION__)
+#else
+static void
+damageRegionAppend (DrawablePtr pDrawable, RegionPtr pRegion, Bool clip,
+			int subWindowMode)
+#endif
+{
+    ScreenPtr	    pScreen = pDrawable->pScreen;
+    damageScrPriv(pScreen);
+    drawableDamage(pDrawable);
+    DamagePtr	    pNext;
+    RegionRec	    clippedRec;
+    RegionPtr	    pDamageRegion;
+    RegionRec	    pixClip;
+    int		    draw_x, draw_y;
+#ifdef COMPOSITE
+    int		    screen_x = 0, screen_y = 0;
+#endif
+
+    /* short circuit for empty regions */
+    if (!RegionNotEmpty(pRegion))
+	return;
+    
+#ifdef COMPOSITE
+    /*
+     * When drawing to a pixmap which is storing window contents,
+     * the region presented is in pixmap relative coordinates which
+     * need to be converted to screen relative coordinates
+     */
+    if (pDrawable->type != DRAWABLE_WINDOW)
+    {
+	screen_x = ((PixmapPtr) pDrawable)->screen_x - pDrawable->x;
+	screen_y = ((PixmapPtr) pDrawable)->screen_y - pDrawable->y;
+    }
+    if (screen_x || screen_y)
+        RegionTranslate(pRegion, screen_x, screen_y);
+#endif
+	
+    if (pDrawable->type == DRAWABLE_WINDOW &&
+	((WindowPtr)(pDrawable))->backingStore == NotUseful)
+    {
+	if (subWindowMode == ClipByChildren)
+	{
+	    RegionIntersect(pRegion, pRegion,
+			     &((WindowPtr)(pDrawable))->clipList);
+	}
+	else if (subWindowMode == IncludeInferiors)
+	{
+	    RegionPtr pTempRegion =
+		NotClippedByChildren((WindowPtr)(pDrawable));
+	    RegionIntersect(pRegion, pRegion, pTempRegion);
+	    RegionDestroy(pTempRegion);
+	}
+	/* If subWindowMode is set to an invalid value, don't perform
+	 * any drawable-based clipping. */
+    }
+        
+
+    RegionNull(&clippedRec);
+    for (; pDamage; pDamage = pNext)
+    {
+	pNext = pDamage->pNext;
+	/*
+	 * Check for internal damage and don't send events
+	 */
+	if (pScrPriv->internalLevel > 0 && !pDamage->isInternal)
+	{
+	    DAMAGE_DEBUG (("non internal damage, skipping at %d\n",
+			   pScrPriv->internalLevel));
+	    continue;
+	}
+	/*
+	 * Check for unrealized windows
+	 */
+	if (pDamage->pDrawable->type == DRAWABLE_WINDOW &&
+	    !((WindowPtr) (pDamage->pDrawable))->realized)
+	{
+	    continue;
+	}
+	
+	draw_x = pDamage->pDrawable->x;
+	draw_y = pDamage->pDrawable->y;
+#ifdef COMPOSITE
+	/*
+	 * Need to move everyone to screen coordinates
+	 * XXX what about off-screen pixmaps with non-zero x/y?
+	 */
+	if (!WindowDrawable(pDamage->pDrawable->type))
+	{
+	    draw_x += ((PixmapPtr) pDamage->pDrawable)->screen_x;
+	    draw_y += ((PixmapPtr) pDamage->pDrawable)->screen_y;
+	}
+#endif
+	
+	/*
+	 * Clip against border or pixmap bounds
+	 */
+	
+	pDamageRegion = pRegion;
+	if (clip || pDamage->pDrawable != pDrawable)
+	{
+	    pDamageRegion = &clippedRec;
+	    if (pDamage->pDrawable->type == DRAWABLE_WINDOW) {
+		RegionIntersect(pDamageRegion, pRegion,
+		    &((WindowPtr)(pDamage->pDrawable))->borderClip);
+	    } else {
+		BoxRec	box;
+		box.x1 = draw_x;
+		box.y1 = draw_y;
+		box.x2 = draw_x + pDamage->pDrawable->width;
+		box.y2 = draw_y + pDamage->pDrawable->height;
+		RegionInit(&pixClip, &box, 1);
+		RegionIntersect(pDamageRegion, pRegion, &pixClip);
+		RegionUninit(&pixClip);
+	    }
+	    /*
+	     * Short circuit empty results
+	     */
+	    if (!RegionNotEmpty(pDamageRegion))
+		continue;
+	}
+	
+	DAMAGE_DEBUG (("%s %d x %d +%d +%d (target 0x%lx monitor 0x%lx)\n",
+		       where,
+		       pDamageRegion->extents.x2 - pDamageRegion->extents.x1,
+		       pDamageRegion->extents.y2 - pDamageRegion->extents.y1,
+		       pDamageRegion->extents.x1, pDamageRegion->extents.y1,
+		       pDrawable->id, pDamage->pDrawable->id));
+	
+	/*
+	 * Move region to target coordinate space
+	 */
+	if (draw_x || draw_y)
+	    RegionTranslate(pDamageRegion, -draw_x, -draw_y);
+
+	/* Store damage region if needed after submission. */
+	if (pDamage->reportAfter || pDamage->damageMarker)
+	    RegionUnion(&pDamage->pendingDamage,
+			 &pDamage->pendingDamage, pDamageRegion);
+
+	/* Duplicate current damage if needed. */
+	if (pDamage->damageMarker)
+	    RegionCopy(&pDamage->backupDamage, &pDamage->damage);
+
+	/* Report damage now, if desired. */
+	if (!pDamage->reportAfter) {
+	    if (pDamage->damageReport)
+		DamageReportDamage (pDamage, pDamageRegion);
+	    else
+		RegionUnion(&pDamage->damage,
+			 &pDamage->damage, pDamageRegion);
+	}
+
+	/*
+	 * translate original region back
+	 */
+	if (pDamageRegion == pRegion && (draw_x || draw_y))
+	    RegionTranslate(pDamageRegion, draw_x, draw_y);
+    }
+#ifdef COMPOSITE
+    if (screen_x || screen_y)
+	RegionTranslate(pRegion, -screen_x, -screen_y);
+#endif
+    
+    RegionUninit(&clippedRec);
+}
+
+static void
+damageRegionProcessPending (DrawablePtr pDrawable)
+{
+    drawableDamage(pDrawable);
+
+    for (; pDamage != NULL; pDamage = pDamage->pNext)
+    {
+	/* submit damage marker whenever possible. */
+	if (pDamage->damageMarker)
+	    (*pDamage->damageMarker) (pDrawable, pDamage, &pDamage->backupDamage, &pDamage->pendingDamage, pDamage->closure);
+	if (pDamage->reportAfter) {
+	    /* It's possible that there is only interest in postRendering reporting. */
+	    if (pDamage->damageReport)
+		DamageReportDamage (pDamage, &pDamage->pendingDamage);
+	    else
+		RegionUnion(&pDamage->damage, &pDamage->damage,
+			&pDamage->pendingDamage);
+	}
+
+	if (pDamage->reportAfter || pDamage->damageMarker)
+	    RegionEmpty(&pDamage->pendingDamage);
+	if (pDamage->damageMarker)
+	    RegionEmpty(&pDamage->backupDamage);
+    }
+    
+}
+
+#if DAMAGE_DEBUG_ENABLE
+#define damageDamageBox(d,b,m) _damageDamageBox(d,b,m,__FUNCTION__)
+static void
+_damageDamageBox (DrawablePtr pDrawable, BoxPtr pBox, int subWindowMode, const char *where)
+#else
+static void
+damageDamageBox (DrawablePtr pDrawable, BoxPtr pBox, int subWindowMode)
+#endif
+{
+    RegionRec	region;
+
+    RegionInit(&region, pBox, 1);
+#if DAMAGE_DEBUG_ENABLE
+    _damageRegionAppend (pDrawable, &region, TRUE, subWindowMode, where);
+#else
+    damageRegionAppend (pDrawable, &region, TRUE, subWindowMode);
+#endif
+    RegionUninit(&region);
+}
+
+static void damageValidateGC(GCPtr, unsigned long, DrawablePtr);
+static void damageChangeGC(GCPtr, unsigned long);
+static void damageCopyGC(GCPtr, unsigned long, GCPtr);
+static void damageDestroyGC(GCPtr);
+static void damageChangeClip(GCPtr, int, pointer, int);
+static void damageDestroyClip(GCPtr);
+static void damageCopyClip(GCPtr, GCPtr);
+
+static GCFuncs damageGCFuncs = {
+    damageValidateGC, damageChangeGC, damageCopyGC, damageDestroyGC,
+    damageChangeClip, damageDestroyClip, damageCopyClip
+};
+
+static GCOps damageGCOps;
+
+static Bool
+damageCreateGC(GCPtr pGC)
+{
+    ScreenPtr pScreen = pGC->pScreen;
+    damageScrPriv(pScreen);
+    damageGCPriv(pGC);
+    Bool ret;
+
+    unwrap (pScrPriv, pScreen, CreateGC);
+    if((ret = (*pScreen->CreateGC) (pGC))) {
+	pGCPriv->ops = NULL;
+	pGCPriv->funcs = pGC->funcs;
+	pGC->funcs = &damageGCFuncs;
+    }
+    wrap (pScrPriv, pScreen, CreateGC, damageCreateGC);
+
+    return ret;
+}
+
+#define DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable) \
+    damageGCPriv(pGC);  \
+    GCFuncs *oldFuncs = pGC->funcs; \
+    unwrap(pGCPriv, pGC, funcs);  \
+    unwrap(pGCPriv, pGC, ops); \
+
+#define DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable) \
+    wrap(pGCPriv, pGC, funcs, oldFuncs); \
+    wrap(pGCPriv, pGC, ops, &damageGCOps)
+
+#define DAMAGE_GC_FUNC_PROLOGUE(pGC) \
+    damageGCPriv(pGC); \
+    unwrap(pGCPriv, pGC, funcs); \
+    if (pGCPriv->ops) unwrap(pGCPriv, pGC, ops)
+
+#define DAMAGE_GC_FUNC_EPILOGUE(pGC) \
+    wrap(pGCPriv, pGC, funcs, &damageGCFuncs);  \
+    if (pGCPriv->ops) wrap(pGCPriv, pGC, ops, &damageGCOps)
+
+static void
+damageValidateGC(GCPtr         pGC,
+		 unsigned long changes,
+		 DrawablePtr   pDrawable)
+{
+    DAMAGE_GC_FUNC_PROLOGUE (pGC);
+    (*pGC->funcs->ValidateGC)(pGC, changes, pDrawable);
+    pGCPriv->ops = pGC->ops;  /* just so it's not NULL */
+    DAMAGE_GC_FUNC_EPILOGUE (pGC);
+}
+
+static void
+damageDestroyGC(GCPtr pGC)
+{
+    DAMAGE_GC_FUNC_PROLOGUE (pGC);
+    (*pGC->funcs->DestroyGC)(pGC);
+    DAMAGE_GC_FUNC_EPILOGUE (pGC);
+}
+
+static void
+damageChangeGC (GCPtr		pGC,
+		unsigned long   mask)
+{
+    DAMAGE_GC_FUNC_PROLOGUE (pGC);
+    (*pGC->funcs->ChangeGC) (pGC, mask);
+    DAMAGE_GC_FUNC_EPILOGUE (pGC);
+}
+
+static void
+damageCopyGC (GCPtr	    pGCSrc,
+	      unsigned long mask,
+	      GCPtr	    pGCDst)
+{
+    DAMAGE_GC_FUNC_PROLOGUE (pGCDst);
+    (*pGCDst->funcs->CopyGC) (pGCSrc, mask, pGCDst);
+    DAMAGE_GC_FUNC_EPILOGUE (pGCDst);
+}
+
+static void
+damageChangeClip (GCPtr	    pGC,
+		  int	    type,
+		  pointer   pvalue,
+		  int	    nrects)
+{
+    DAMAGE_GC_FUNC_PROLOGUE (pGC);
+    (*pGC->funcs->ChangeClip) (pGC, type, pvalue, nrects);
+    DAMAGE_GC_FUNC_EPILOGUE (pGC);
+}
+
+static void
+damageCopyClip(GCPtr pgcDst, GCPtr pgcSrc)
+{
+    DAMAGE_GC_FUNC_PROLOGUE (pgcDst);
+    (* pgcDst->funcs->CopyClip)(pgcDst, pgcSrc);
+    DAMAGE_GC_FUNC_EPILOGUE (pgcDst);
+}
+
+static void
+damageDestroyClip(GCPtr pGC)
+{
+    DAMAGE_GC_FUNC_PROLOGUE (pGC);
+    (* pGC->funcs->DestroyClip)(pGC);
+    DAMAGE_GC_FUNC_EPILOGUE (pGC);
+}
+
+#define TRIM_BOX(box, pGC) if (pGC->pCompositeClip) { \
+    BoxPtr extents = &pGC->pCompositeClip->extents;\
+    if(box.x1 < extents->x1) box.x1 = extents->x1; \
+    if(box.x2 > extents->x2) box.x2 = extents->x2; \
+    if(box.y1 < extents->y1) box.y1 = extents->y1; \
+    if(box.y2 > extents->y2) box.y2 = extents->y2; \
+    }
+
+#define TRANSLATE_BOX(box, pDrawable) { \
+    box.x1 += pDrawable->x; \
+    box.x2 += pDrawable->x; \
+    box.y1 += pDrawable->y; \
+    box.y2 += pDrawable->y; \
+    }
+
+#define TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC) { \
+    TRANSLATE_BOX(box, pDrawable); \
+    TRIM_BOX(box, pGC); \
+    }
+
+#define BOX_NOT_EMPTY(box) \
+    (((box.x2 - box.x1) > 0) && ((box.y2 - box.y1) > 0))
+
+#define checkGCDamage(d,g)	(getDrawableDamage(d) && \
+				 (!g->pCompositeClip ||\
+				  RegionNotEmpty(g->pCompositeClip)))
+
+#define TRIM_PICTURE_BOX(box, pDst) { \
+    BoxPtr extents = &pDst->pCompositeClip->extents;\
+    if(box.x1 < extents->x1) box.x1 = extents->x1; \
+    if(box.x2 > extents->x2) box.x2 = extents->x2; \
+    if(box.y1 < extents->y1) box.y1 = extents->y1; \
+    if(box.y2 > extents->y2) box.y2 = extents->y2; \
+    }
+    
+#define checkPictureDamage(p)	(getDrawableDamage(p->pDrawable) && \
+				 RegionNotEmpty(p->pCompositeClip))
+
+static void
+damageComposite (CARD8      op,
+		   PicturePtr pSrc,
+		   PicturePtr pMask,
+		   PicturePtr pDst,
+		   INT16      xSrc,
+		   INT16      ySrc,
+		   INT16      xMask,
+		   INT16      yMask,
+		   INT16      xDst,
+		   INT16      yDst,
+		   CARD16     width,
+		   CARD16     height)
+{
+    ScreenPtr		pScreen = pDst->pDrawable->pScreen;
+    PictureScreenPtr	ps = GetPictureScreen(pScreen);
+    damageScrPriv(pScreen);
+
+    if (checkPictureDamage (pDst))
+    {
+	BoxRec	box;
+
+	box.x1 = xDst + pDst->pDrawable->x;
+	box.y1 = yDst + pDst->pDrawable->y;
+	box.x2 = box.x1 + width;
+	box.y2 = box.y1 + height;
+	TRIM_PICTURE_BOX(box, pDst);
+	if (BOX_NOT_EMPTY(box))
+	    damageDamageBox (pDst->pDrawable, &box, pDst->subWindowMode);
+    }
+    unwrap (pScrPriv, ps, Composite);
+    (*ps->Composite) (op,
+		       pSrc,
+		       pMask,
+		       pDst,
+		       xSrc,
+		       ySrc,
+		       xMask,
+		       yMask,
+		       xDst,
+		       yDst,
+		       width,
+		       height);
+    damageRegionProcessPending (pDst->pDrawable);
+    wrap (pScrPriv, ps, Composite, damageComposite);
+}
+
+static void
+damageGlyphs (CARD8		op,
+		PicturePtr	pSrc,
+		PicturePtr	pDst,
+		PictFormatPtr	maskFormat,
+		INT16		xSrc,
+		INT16		ySrc,
+		int		nlist,
+		GlyphListPtr	list,
+		GlyphPtr	*glyphs)
+{
+    ScreenPtr		pScreen = pDst->pDrawable->pScreen;
+    PictureScreenPtr	ps = GetPictureScreen(pScreen);
+    damageScrPriv(pScreen);
+
+    if (checkPictureDamage (pDst))
+    {
+	int		nlistTmp = nlist;
+	GlyphListPtr	listTmp = list;
+	GlyphPtr	*glyphsTmp = glyphs;
+	int		x, y;
+	int		n;
+	GlyphPtr	glyph;
+	BoxRec		box;
+	int		x1, y1, x2, y2;
+
+	box.x1 = 32767;
+	box.y1 = 32767;
+	box.x2 = -32767;
+	box.y2 = -32767;
+	x = pDst->pDrawable->x;
+	y = pDst->pDrawable->y;
+	while (nlistTmp--)
+	{
+	    x += listTmp->xOff;
+	    y += listTmp->yOff;
+	    n = listTmp->len;
+	    while (n--)
+	    {
+		glyph = *glyphsTmp++;
+		x1 = x - glyph->info.x;
+		y1 = y - glyph->info.y;
+		x2 = x1 + glyph->info.width;
+		y2 = y1 + glyph->info.height;
+		if (x1 < box.x1)
+		    box.x1 = x1;
+		if (y1 < box.y1)
+		    box.y1 = y1;
+		if (x2 > box.x2)
+		    box.x2 = x2;
+		if (y2 > box.y2)
+		    box.y2 = y2;
+		x += glyph->info.xOff;
+		y += glyph->info.yOff;
+	    }
+	    listTmp++;
+	}
+	TRIM_PICTURE_BOX (box, pDst);
+	if (BOX_NOT_EMPTY(box))
+	    damageDamageBox (pDst->pDrawable, &box, pDst->subWindowMode);
+    }
+    unwrap (pScrPriv, ps, Glyphs);
+    (*ps->Glyphs) (op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, list, glyphs);
+    damageRegionProcessPending (pDst->pDrawable);
+    wrap (pScrPriv, ps, Glyphs, damageGlyphs);
+}
+
+static void
+damageAddTraps (PicturePtr  pPicture,
+		INT16	    x_off,
+		INT16	    y_off,
+		int	    ntrap,
+		xTrap	    *traps)
+{
+    ScreenPtr		pScreen = pPicture->pDrawable->pScreen;
+    PictureScreenPtr	ps = GetPictureScreen(pScreen);
+    damageScrPriv(pScreen);
+
+    if (checkPictureDamage (pPicture))
+    {
+	BoxRec	box;
+	int	i;
+	int	x, y;
+	xTrap	*t = traps;
+
+	box.x1 = 32767;
+	box.y1 = 32767;
+	box.x2 = -32767;
+	box.y2 = -32767;
+	x = pPicture->pDrawable->x + x_off;
+	y = pPicture->pDrawable->y + y_off;
+	for (i = 0; i < ntrap; i++)
+	{
+	    pixman_fixed_t   l = min (t->top.l, t->bot.l);
+	    pixman_fixed_t   r = max (t->top.r, t->bot.r);
+	    int	    x1 = x + pixman_fixed_to_int (l);
+	    int	    x2 = x + pixman_fixed_to_int (pixman_fixed_ceil (r));
+	    int	    y1 = y + pixman_fixed_to_int (t->top.y);
+	    int	    y2 = y + pixman_fixed_to_int (pixman_fixed_ceil (t->bot.y));
+	    
+	    if (x1 < box.x1)
+		box.x1 = x1;
+	    if (x2 > box.x2)
+		box.x2 = x2;
+	    if (y1 < box.y1)
+		box.y1 = y1;
+	    if (y2 > box.y2)
+		box.y2 = y2;
+	}
+	TRIM_PICTURE_BOX (box, pPicture);
+	if (BOX_NOT_EMPTY(box))
+	    damageDamageBox (pPicture->pDrawable, &box, pPicture->subWindowMode);
+    }
+    unwrap (pScrPriv, ps, AddTraps);
+    (*ps->AddTraps) (pPicture, x_off, y_off, ntrap, traps);
+    damageRegionProcessPending (pPicture->pDrawable);
+    wrap (pScrPriv, ps, AddTraps, damageAddTraps);
+}
+
+/**********************************************************/
+
+
+static void
+damageFillSpans(DrawablePtr pDrawable,
+		GC	    *pGC,
+		int	    npt,
+		DDXPointPtr ppt,
+		int	    *pwidth,
+		int	    fSorted)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (npt && checkGCDamage (pDrawable, pGC))
+    {
+	int	    nptTmp = npt;
+	DDXPointPtr pptTmp = ppt;
+	int	    *pwidthTmp = pwidth;
+	BoxRec	    box;
+
+	box.x1 = pptTmp->x;
+	box.x2 = box.x1 + *pwidthTmp;
+	box.y2 = box.y1 = pptTmp->y;
+
+	while(--nptTmp) 
+	{
+	   pptTmp++;
+	   pwidthTmp++;
+	   if(box.x1 > pptTmp->x) box.x1 = pptTmp->x;
+	   if(box.x2 < (pptTmp->x + *pwidthTmp))
+		box.x2 = pptTmp->x + *pwidthTmp;
+	   if(box.y1 > pptTmp->y) box.y1 = pptTmp->y;
+	   else if(box.y2 < pptTmp->y) box.y2 = pptTmp->y;
+	}
+
+	box.y2++;
+
+        if(!pGC->miTranslate) {
+           TRANSLATE_BOX(box, pDrawable);
+        }
+        TRIM_BOX(box, pGC); 
+
+	if(BOX_NOT_EMPTY(box))
+	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+    }
+    
+    (*pGC->ops->FillSpans)(pDrawable, pGC, npt, ppt, pwidth, fSorted);
+
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+static void
+damageSetSpans(DrawablePtr  pDrawable,
+	       GCPtr	    pGC,
+	       char	    *pcharsrc,
+	       DDXPointPtr  ppt,
+	       int	    *pwidth,
+	       int	    npt,
+	       int	    fSorted)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (npt && checkGCDamage (pDrawable, pGC))
+    {
+	DDXPointPtr pptTmp = ppt;
+	int	    *pwidthTmp = pwidth;
+	int	    nptTmp = npt;
+	BoxRec	    box;
+
+	box.x1 = pptTmp->x;
+	box.x2 = box.x1 + *pwidthTmp;
+	box.y2 = box.y1 = pptTmp->y;
+
+	while(--nptTmp) 
+	{
+	   pptTmp++;
+	   pwidthTmp++;
+	   if(box.x1 > pptTmp->x) box.x1 = pptTmp->x;
+	   if(box.x2 < (pptTmp->x + *pwidthTmp))
+		box.x2 = pptTmp->x + *pwidthTmp;
+	   if(box.y1 > pptTmp->y) box.y1 = pptTmp->y;
+	   else if(box.y2 < pptTmp->y) box.y2 = pptTmp->y;
+	}
+
+	box.y2++;
+
+        if(!pGC->miTranslate) {
+           TRANSLATE_BOX(box, pDrawable);
+        }
+        TRIM_BOX(box, pGC); 
+
+	if(BOX_NOT_EMPTY(box))
+	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+    }
+    (*pGC->ops->SetSpans)(pDrawable, pGC, pcharsrc, ppt, pwidth, npt, fSorted);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+static void
+damagePutImage(DrawablePtr  pDrawable,
+	       GCPtr	    pGC,
+	       int	    depth,
+	       int	    x,
+	       int	    y,
+	       int	    w,
+	       int	    h,
+	       int	    leftPad,
+	       int	    format,
+	       char	    *pImage)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+    if (checkGCDamage (pDrawable, pGC))
+    {
+	BoxRec box;
+
+	box.x1 = x + pDrawable->x;
+	box.x2 = box.x1 + w;
+	box.y1 = y + pDrawable->y;
+	box.y2 = box.y1 + h;
+
+	TRIM_BOX(box, pGC);
+	if(BOX_NOT_EMPTY(box))
+	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+    }
+    (*pGC->ops->PutImage)(pDrawable, pGC, depth, x, y, w, h,
+		leftPad, format, pImage);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+static RegionPtr
+damageCopyArea(DrawablePtr   pSrc,
+	       DrawablePtr  pDst,
+	       GC	    *pGC,
+	       int	    srcx,
+	       int	    srcy,
+	       int	    width,
+	       int	    height,
+	       int	    dstx,
+	       int	    dsty)
+{
+    RegionPtr ret;
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDst);
+    
+    if (checkGCDamage (pDst, pGC))
+    {
+	BoxRec box;
+
+	box.x1 = dstx + pDst->x;
+	box.x2 = box.x1 + width;
+	box.y1 = dsty + pDst->y;
+	box.y2 = box.y1 + height;
+
+	TRIM_BOX(box, pGC);
+	if(BOX_NOT_EMPTY(box))
+	   damageDamageBox (pDst, &box, pGC->subWindowMode);
+    }
+
+    ret = (*pGC->ops->CopyArea)(pSrc, pDst,
+            pGC, srcx, srcy, width, height, dstx, dsty);
+    damageRegionProcessPending (pDst);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDst);
+    return ret;
+}
+
+static RegionPtr
+damageCopyPlane(DrawablePtr	pSrc,
+		DrawablePtr	pDst,
+		GCPtr		pGC,
+		int		srcx,
+		int		srcy,
+		int		width,
+		int		height,
+		int		dstx,
+		int		dsty,
+		unsigned long	bitPlane)
+{
+    RegionPtr ret;
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDst);
+
+    if (checkGCDamage (pDst, pGC))
+    {
+	BoxRec box;
+
+	box.x1 = dstx + pDst->x;
+	box.x2 = box.x1 + width;
+	box.y1 = dsty + pDst->y;
+	box.y2 = box.y1 + height;
+
+	TRIM_BOX(box, pGC);
+	if(BOX_NOT_EMPTY(box))
+	   damageDamageBox (pDst, &box, pGC->subWindowMode);
+    }
+
+    ret = (*pGC->ops->CopyPlane)(pSrc, pDst,
+	       pGC, srcx, srcy, width, height, dstx, dsty, bitPlane);
+    damageRegionProcessPending (pDst);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDst);
+    return ret;
+}
+
+static void
+damagePolyPoint(DrawablePtr pDrawable,
+		GCPtr	    pGC,
+		int	    mode,
+		int	    npt,
+		xPoint	    *ppt)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (npt && checkGCDamage (pDrawable, pGC))
+    {
+	BoxRec	box;
+	int	nptTmp = npt;
+	xPoint	*pptTmp = ppt;
+
+	box.x2 = box.x1 = pptTmp->x;
+	box.y2 = box.y1 = pptTmp->y;
+
+	/* this could be slow if the points were spread out */
+
+	while(--nptTmp) 
+	{
+	   pptTmp++;
+	   if(box.x1 > pptTmp->x) box.x1 = pptTmp->x;
+	   else if(box.x2 < pptTmp->x) box.x2 = pptTmp->x;
+	   if(box.y1 > pptTmp->y) box.y1 = pptTmp->y;
+	   else if(box.y2 < pptTmp->y) box.y2 = pptTmp->y;
+	}
+
+	box.x2++;
+	box.y2++;
+
+	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);
+	if(BOX_NOT_EMPTY(box))
+	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+    }
+    (*pGC->ops->PolyPoint)(pDrawable, pGC, mode, npt, ppt);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+static void
+damagePolylines(DrawablePtr pDrawable,
+		GCPtr	    pGC,
+		int	    mode,
+		int	    npt,
+		DDXPointPtr ppt)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (npt && checkGCDamage (pDrawable, pGC))
+    {
+	int	    nptTmp = npt;
+	DDXPointPtr pptTmp = ppt;
+	BoxRec	    box;
+	int	    extra = pGC->lineWidth >> 1;
+
+	box.x2 = box.x1 = pptTmp->x;
+	box.y2 = box.y1 = pptTmp->y;
+
+	if(nptTmp > 1) 
+	{
+	   if(pGC->joinStyle == JoinMiter)
+		extra = 6 * pGC->lineWidth;
+	   else if(pGC->capStyle == CapProjecting)
+		extra = pGC->lineWidth;
+        }
+
+	if(mode == CoordModePrevious) 
+	{
+	   int x = box.x1;
+	   int y = box.y1;
+	   while(--nptTmp) 
+	   {
+		pptTmp++;
+		x += pptTmp->x;
+		y += pptTmp->y;
+		if(box.x1 > x) box.x1 = x;
+		else if(box.x2 < x) box.x2 = x;
+		if(box.y1 > y) box.y1 = y;
+		else if(box.y2 < y) box.y2 = y;
+	    }
+	}
+	else 
+	{
+	   while(--nptTmp) 
+	   {
+		pptTmp++;
+		if(box.x1 > pptTmp->x) box.x1 = pptTmp->x;
+		else if(box.x2 < pptTmp->x) box.x2 = pptTmp->x;
+		if(box.y1 > pptTmp->y) box.y1 = pptTmp->y;
+		else if(box.y2 < pptTmp->y) box.y2 = pptTmp->y;
+	    }
+	}
+
+	box.x2++;
+	box.y2++;
+
+	if(extra) 
+	{
+	   box.x1 -= extra;
+	   box.x2 += extra;
+	   box.y1 -= extra;
+	   box.y2 += extra;
+        }
+
+	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);
+	if(BOX_NOT_EMPTY(box))
+	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+    }
+    (*pGC->ops->Polylines)(pDrawable, pGC, mode, npt, ppt);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+static void
+damagePolySegment(DrawablePtr	pDrawable,
+		  GCPtr		pGC,
+		  int		nSeg,
+		  xSegment	*pSeg)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (nSeg && checkGCDamage (pDrawable, pGC))
+    {
+	BoxRec	    box;
+	int	    extra = pGC->lineWidth;
+	int	    nsegTmp = nSeg;
+	xSegment    *pSegTmp = pSeg;
+
+        if(pGC->capStyle != CapProjecting)
+	   extra >>= 1;
+
+	if(pSegTmp->x2 > pSegTmp->x1) {
+	    box.x1 = pSegTmp->x1;
+	    box.x2 = pSegTmp->x2;
+	} else {
+	    box.x2 = pSegTmp->x1;
+	    box.x1 = pSegTmp->x2;
+	}
+
+	if(pSegTmp->y2 > pSegTmp->y1) {
+	    box.y1 = pSegTmp->y1;
+	    box.y2 = pSegTmp->y2;
+	} else {
+	    box.y2 = pSegTmp->y1;
+	    box.y1 = pSegTmp->y2;
+	}
+
+	while(--nsegTmp) 
+	{
+	    pSegTmp++;
+	    if(pSegTmp->x2 > pSegTmp->x1) 
+	    {
+		if(pSegTmp->x1 < box.x1) box.x1 = pSegTmp->x1;
+		if(pSegTmp->x2 > box.x2) box.x2 = pSegTmp->x2;
+	    }
+	    else 
+	    {
+		if(pSegTmp->x2 < box.x1) box.x1 = pSegTmp->x2;
+		if(pSegTmp->x1 > box.x2) box.x2 = pSegTmp->x1;
+	    }
+	    if(pSegTmp->y2 > pSegTmp->y1) 
+	    {
+		if(pSegTmp->y1 < box.y1) box.y1 = pSegTmp->y1;
+		if(pSegTmp->y2 > box.y2) box.y2 = pSegTmp->y2;
+	    }
+	    else
+	    {
+		if(pSegTmp->y2 < box.y1) box.y1 = pSegTmp->y2;
+		if(pSegTmp->y1 > box.y2) box.y2 = pSegTmp->y1;
+	    }
+	}
+
+	box.x2++;
+	box.y2++;
+
+	if(extra) 
+	{
+	   box.x1 -= extra;
+	   box.x2 += extra;
+	   box.y1 -= extra;
+	   box.y2 += extra;
+        }
+
+	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);
+	if(BOX_NOT_EMPTY(box))
+	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+    }
+    (*pGC->ops->PolySegment)(pDrawable, pGC, nSeg, pSeg);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+static void
+damagePolyRectangle(DrawablePtr  pDrawable,
+		    GCPtr        pGC,
+		    int	         nRects,
+		    xRectangle  *pRects)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (nRects && checkGCDamage (pDrawable, pGC))
+    {
+	BoxRec	    box;
+	int	    offset1, offset2, offset3;
+	int	    nRectsTmp = nRects;
+	xRectangle  *pRectsTmp = pRects;
+
+	offset2 = pGC->lineWidth;
+	if(!offset2) offset2 = 1;
+	offset1 = offset2 >> 1;
+	offset3 = offset2 - offset1;
+
+	while(nRectsTmp--)
+	{
+	    box.x1 = pRectsTmp->x - offset1;
+	    box.y1 = pRectsTmp->y - offset1;
+	    box.x2 = box.x1 + pRectsTmp->width + offset2;
+	    box.y2 = box.y1 + offset2;
+	    TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);
+	    if(BOX_NOT_EMPTY(box))
+		damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+
+	    box.x1 = pRectsTmp->x - offset1;
+	    box.y1 = pRectsTmp->y + offset3;
+	    box.x2 = box.x1 + offset2;
+	    box.y2 = box.y1 + pRectsTmp->height - offset2;
+	    TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);
+	    if(BOX_NOT_EMPTY(box))
+		damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+
+	    box.x1 = pRectsTmp->x + pRectsTmp->width - offset1;
+	    box.y1 = pRectsTmp->y + offset3;
+	    box.x2 = box.x1 + offset2;
+	    box.y2 = box.y1 + pRectsTmp->height - offset2;
+	    TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);
+	    if(BOX_NOT_EMPTY(box))
+		damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+
+	    box.x1 = pRectsTmp->x - offset1;
+	    box.y1 = pRectsTmp->y + pRectsTmp->height - offset1;
+	    box.x2 = box.x1 + pRectsTmp->width + offset2;
+	    box.y2 = box.y1 + offset2;
+	    TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);
+	    if(BOX_NOT_EMPTY(box))
+		damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+
+	    pRectsTmp++;
+	}
+    }
+    (*pGC->ops->PolyRectangle)(pDrawable, pGC, nRects, pRects);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+static void
+damagePolyArc(DrawablePtr   pDrawable,
+	      GCPtr	    pGC,
+	      int	    nArcs,
+	      xArc	    *pArcs)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (nArcs && checkGCDamage (pDrawable, pGC))
+    {
+	int	extra = pGC->lineWidth >> 1;
+	BoxRec	box;
+	int	nArcsTmp = nArcs;
+	xArc	*pArcsTmp = pArcs;
+
+	box.x1 = pArcsTmp->x;
+	box.x2 = box.x1 + pArcsTmp->width;
+	box.y1 = pArcsTmp->y;
+	box.y2 = box.y1 + pArcsTmp->height;
+
+	while(--nArcsTmp) 
+	{
+	    pArcsTmp++;
+	    if(box.x1 > pArcsTmp->x)
+		box.x1 = pArcsTmp->x;
+	    if(box.x2 < (pArcsTmp->x + pArcsTmp->width))
+		box.x2 = pArcsTmp->x + pArcsTmp->width;
+	    if(box.y1 > pArcsTmp->y) 
+		box.y1 = pArcsTmp->y;
+	    if(box.y2 < (pArcsTmp->y + pArcsTmp->height))
+		box.y2 = pArcsTmp->y + pArcsTmp->height;
+        }
+
+	if(extra) 
+	{
+	   box.x1 -= extra;
+	   box.x2 += extra;
+	   box.y1 -= extra;
+	   box.y2 += extra;
+        }
+
+	box.x2++;
+	box.y2++;
+
+	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);
+	if(BOX_NOT_EMPTY(box))
+	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+    }
+    (*pGC->ops->PolyArc)(pDrawable, pGC, nArcs, pArcs);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+static void
+damageFillPolygon(DrawablePtr	pDrawable,
+		  GCPtr		pGC,
+		  int		shape,
+		  int		mode,
+		  int		npt,
+		  DDXPointPtr	ppt)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (npt > 2 && checkGCDamage (pDrawable, pGC))
+    {
+	DDXPointPtr pptTmp = ppt;
+	int	    nptTmp = npt;
+	BoxRec	    box;
+
+	box.x2 = box.x1 = pptTmp->x;
+	box.y2 = box.y1 = pptTmp->y;
+
+	if(mode != CoordModeOrigin) 
+	{
+	   int x = box.x1;
+	   int y = box.y1;
+	   while(--nptTmp) 
+	   {
+		pptTmp++;
+		x += pptTmp->x;
+		y += pptTmp->y;
+		if(box.x1 > x) box.x1 = x;
+		else if(box.x2 < x) box.x2 = x;
+		if(box.y1 > y) box.y1 = y;
+		else if(box.y2 < y) box.y2 = y;
+	    }
+	}
+	else 
+	{
+	   while(--nptTmp) 
+	   {
+		pptTmp++;
+		if(box.x1 > pptTmp->x) box.x1 = pptTmp->x;
+		else if(box.x2 < pptTmp->x) box.x2 = pptTmp->x;
+		if(box.y1 > pptTmp->y) box.y1 = pptTmp->y;
+		else if(box.y2 < pptTmp->y) box.y2 = pptTmp->y;
+	    }
+	}
+
+	box.x2++;
+	box.y2++;
+
+	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);
+	if(BOX_NOT_EMPTY(box))
+	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+    }
+    
+    (*pGC->ops->FillPolygon)(pDrawable, pGC, shape, mode, npt, ppt);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+
+static void
+damagePolyFillRect(DrawablePtr	pDrawable,
+		   GCPtr	pGC,
+		   int		nRects,
+		   xRectangle	*pRects)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+    if (nRects && checkGCDamage (pDrawable, pGC))
+    {
+	BoxRec	    box;
+	xRectangle  *pRectsTmp = pRects;
+	int	    nRectsTmp = nRects;
+
+	box.x1 = pRectsTmp->x;
+	box.x2 = box.x1 + (short)pRectsTmp->width;
+	box.y1 = pRectsTmp->y;
+	box.y2 = box.y1 + (short)pRectsTmp->height;
+
+	while(--nRectsTmp) 
+	{
+	    pRectsTmp++;
+	    if(box.x1 > pRectsTmp->x) box.x1 = pRectsTmp->x;
+	    if(box.x2 < (pRectsTmp->x + pRectsTmp->width))
+		box.x2 = pRectsTmp->x + pRectsTmp->width;
+	    if(box.y1 > pRectsTmp->y) box.y1 = pRectsTmp->y;
+	    if(box.y2 < (pRectsTmp->y + pRectsTmp->height))
+		box.y2 = pRectsTmp->y + pRectsTmp->height;
+	}
+
+	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);
+	if(BOX_NOT_EMPTY(box))
+	    damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+    }
+    (*pGC->ops->PolyFillRect)(pDrawable, pGC, nRects, pRects);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+
+static void
+damagePolyFillArc(DrawablePtr	pDrawable,
+		  GCPtr		pGC,
+		  int		nArcs,
+		  xArc		*pArcs)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (nArcs && checkGCDamage (pDrawable, pGC))
+    {
+	BoxRec	box;
+	int	nArcsTmp = nArcs;
+	xArc	*pArcsTmp = pArcs;
+
+	box.x1 = pArcsTmp->x;
+	box.x2 = box.x1 + pArcsTmp->width;
+	box.y1 = pArcsTmp->y;
+	box.y2 = box.y1 + pArcsTmp->height;
+
+	while(--nArcsTmp) 
+	{
+	    pArcsTmp++;
+	    if(box.x1 > pArcsTmp->x)
+		box.x1 = pArcsTmp->x;
+	    if(box.x2 < (pArcsTmp->x + pArcsTmp->width))
+		box.x2 = pArcsTmp->x + pArcsTmp->width;
+	    if(box.y1 > pArcsTmp->y)
+		box.y1 = pArcsTmp->y;
+	    if(box.y2 < (pArcsTmp->y + pArcsTmp->height))
+		box.y2 = pArcsTmp->y + pArcsTmp->height;
+        }
+
+	TRIM_AND_TRANSLATE_BOX(box, pDrawable, pGC);
+	if(BOX_NOT_EMPTY(box))
+	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+    }
+    (*pGC->ops->PolyFillArc)(pDrawable, pGC, nArcs, pArcs);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+/*
+ * general Poly/Image text function.  Extract glyph information,
+ * compute bounding box and remove cursor if it is overlapped.
+ */
+
+static void
+damageDamageChars (DrawablePtr	pDrawable,
+		   FontPtr	font,
+		   int		x,
+		   int		y,
+		   unsigned int	n,
+		   CharInfoPtr	*charinfo,
+		   Bool		imageblt,
+		   int		subWindowMode)
+{
+    ExtentInfoRec   extents;
+    BoxRec	    box;
+
+    QueryGlyphExtents(font, charinfo, n, &extents);
+    if (imageblt)
+    {
+	if (extents.overallWidth > extents.overallRight)
+	    extents.overallRight = extents.overallWidth;
+	if (extents.overallWidth < extents.overallLeft)
+	    extents.overallLeft = extents.overallWidth;
+	if (extents.overallLeft > 0)
+	    extents.overallLeft = 0;
+	if (extents.fontAscent > extents.overallAscent)
+	    extents.overallAscent = extents.fontAscent;
+	if (extents.fontDescent > extents.overallDescent)
+	    extents.overallDescent = extents.fontDescent;
+    }
+    box.x1 = x + extents.overallLeft;
+    box.y1 = y - extents.overallAscent;
+    box.x2 = x + extents.overallRight;
+    box.y2 = y + extents.overallDescent;
+    damageDamageBox (pDrawable, &box, subWindowMode);
+}
+
+/*
+ * values for textType:
+ */
+#define TT_POLY8   0
+#define TT_IMAGE8  1
+#define TT_POLY16  2
+#define TT_IMAGE16 3
+
+static int 
+damageText (DrawablePtr	    pDrawable,
+	    GCPtr	    pGC,
+	    int		    x,
+	    int		    y,
+	    unsigned long   count,
+	    char	    *chars,
+	    FontEncoding    fontEncoding,
+	    Bool	    textType)
+{
+    CharInfoPtr	    *charinfo;
+    CharInfoPtr	    *info;
+    unsigned long   i;
+    unsigned int    n;
+    int		    w;
+    Bool	    imageblt;
+
+    imageblt = (textType == TT_IMAGE8) || (textType == TT_IMAGE16);
+
+    charinfo = malloc(count * sizeof(CharInfoPtr));
+    if (!charinfo)
+	return x;
+
+    GetGlyphs(pGC->font, count, (unsigned char *)chars,
+	      fontEncoding, &i, charinfo);
+    n = (unsigned int)i;
+    w = 0;
+    if (!imageblt)
+	for (info = charinfo; i--; info++)
+	    w += (*info)->metrics.characterWidth;
+
+    if (n != 0) {
+	damageDamageChars (pDrawable, pGC->font, x + pDrawable->x, y + pDrawable->y, n,
+			   charinfo, imageblt, pGC->subWindowMode);
+	if (imageblt)
+	    (*pGC->ops->ImageGlyphBlt)(pDrawable, pGC, x, y, n, charinfo,
+				       FONTGLYPHS(pGC->font));
+	else
+	    (*pGC->ops->PolyGlyphBlt)(pDrawable, pGC, x, y, n, charinfo,
+				      FONTGLYPHS(pGC->font));
+    }
+    free(charinfo);
+    return x + w;
+}
+
+static int
+damagePolyText8(DrawablePtr pDrawable,
+		GCPtr	    pGC,
+		int	    x,
+		int	    y,
+		int	    count,
+		char	    *chars)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (checkGCDamage (pDrawable, pGC))
+	x = damageText (pDrawable, pGC, x, y, (unsigned long) count, chars,
+		    Linear8Bit, TT_POLY8);
+    else
+	x = (*pGC->ops->PolyText8)(pDrawable, pGC, x, y, count, chars);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+    return x;
+}
+
+static int
+damagePolyText16(DrawablePtr	pDrawable,
+		 GCPtr		pGC,
+		 int		x,
+		 int		y,
+		 int		count,
+		 unsigned short	*chars)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (checkGCDamage (pDrawable, pGC))
+	x = damageText (pDrawable, pGC, x, y, (unsigned long) count, (char *) chars,
+		    FONTLASTROW(pGC->font) == 0 ? Linear16Bit : TwoD16Bit,
+		    TT_POLY16);
+    else
+	x = (*pGC->ops->PolyText16)(pDrawable, pGC, x, y, count, chars);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+    return x;
+}
+
+static void
+damageImageText8(DrawablePtr	pDrawable,
+		 GCPtr		pGC,
+		 int		x,
+		 int		y,
+		 int		count,
+		 char		*chars)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (checkGCDamage (pDrawable, pGC))
+	damageText (pDrawable, pGC, x, y, (unsigned long) count, chars,
+		    Linear8Bit, TT_IMAGE8);
+    else
+	(*pGC->ops->ImageText8)(pDrawable, pGC, x, y, count, chars);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+static void
+damageImageText16(DrawablePtr	pDrawable,
+		  GCPtr		pGC,
+		  int		x,
+		  int		y,
+		  int		count,
+		  unsigned short *chars)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+
+    if (checkGCDamage (pDrawable, pGC))
+	damageText (pDrawable, pGC, x, y, (unsigned long) count, (char *) chars,
+		    FONTLASTROW(pGC->font) == 0 ? Linear16Bit : TwoD16Bit,
+		    TT_IMAGE16);
+    else
+	(*pGC->ops->ImageText16)(pDrawable, pGC, x, y, count, chars);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+
+static void
+damageImageGlyphBlt(DrawablePtr	    pDrawable,
+		    GCPtr	    pGC,
+		    int		    x,
+		    int		    y,
+		    unsigned int    nglyph,
+		    CharInfoPtr	    *ppci,
+		    pointer	    pglyphBase)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+    damageDamageChars (pDrawable, pGC->font, x + pDrawable->x, y + pDrawable->y,
+		       nglyph, ppci, TRUE, pGC->subWindowMode);
+    (*pGC->ops->ImageGlyphBlt)(pDrawable, pGC, x, y, nglyph,
+					ppci, pglyphBase);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+static void
+damagePolyGlyphBlt(DrawablePtr	pDrawable,
+		   GCPtr	pGC,
+		   int		x,
+		   int		y,
+		   unsigned int	nglyph,
+		   CharInfoPtr	*ppci,
+		   pointer	pglyphBase)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+    damageDamageChars (pDrawable, pGC->font, x + pDrawable->x, y + pDrawable->y,
+		       nglyph, ppci, FALSE, pGC->subWindowMode);
+    (*pGC->ops->PolyGlyphBlt)(pDrawable, pGC, x, y, nglyph,
+				ppci, pglyphBase);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+static void
+damagePushPixels(GCPtr		pGC,
+		 PixmapPtr	pBitMap,
+		 DrawablePtr	pDrawable,
+		 int		dx,
+		 int		dy,
+		 int		xOrg,
+		 int		yOrg)
+{
+    DAMAGE_GC_OP_PROLOGUE(pGC, pDrawable);
+    if(checkGCDamage (pDrawable, pGC))
+    {
+	BoxRec box;
+
+        box.x1 = xOrg;
+        box.y1 = yOrg;
+
+        if(!pGC->miTranslate) {
+           box.x1 += pDrawable->x;          
+           box.y1 += pDrawable->y;          
+        }
+
+	box.x2 = box.x1 + dx;
+	box.y2 = box.y1 + dy;
+
+	TRIM_BOX(box, pGC);
+	if(BOX_NOT_EMPTY(box))
+	   damageDamageBox (pDrawable, &box, pGC->subWindowMode);
+    }
+    (*pGC->ops->PushPixels)(pGC, pBitMap, pDrawable, dx, dy, xOrg, yOrg);
+    damageRegionProcessPending (pDrawable);
+    DAMAGE_GC_OP_EPILOGUE(pGC, pDrawable);
+}
+
+static void
+damageRemoveDamage (DamagePtr *pPrev, DamagePtr pDamage)
+{
+    while (*pPrev)
+    {
+	if (*pPrev == pDamage)
+	{
+	    *pPrev = pDamage->pNext;
+	    return;
+	}
+	pPrev = &(*pPrev)->pNext;
+    }
+#if DAMAGE_VALIDATE_ENABLE
+    ErrorF ("Damage not on list\n");
+    OsAbort ();
+#endif
+}
+
+static void
+damageInsertDamage (DamagePtr *pPrev, DamagePtr pDamage)
+{
+#if DAMAGE_VALIDATE_ENABLE
+    DamagePtr	pOld;
+
+    for (pOld = *pPrev; pOld; pOld = pOld->pNext)
+	if (pOld == pDamage) {
+	    ErrorF ("Damage already on list\n");
+	    OsAbort ();
+	}
+#endif
+    pDamage->pNext = *pPrev;
+    *pPrev = pDamage;
+}
+
+static Bool
+damageDestroyPixmap (PixmapPtr pPixmap)
+{
+    ScreenPtr	pScreen = pPixmap->drawable.pScreen;
+    damageScrPriv(pScreen);
+
+    if (pPixmap->refcnt == 1)
+    {
+	DamagePtr	*pPrev = getPixmapDamageRef (pPixmap);
+	DamagePtr	pDamage;
+
+	while ((pDamage = *pPrev))
+	{
+	    damageRemoveDamage (pPrev, pDamage);
+	    if (!pDamage->isWindow)
+		DamageDestroy (pDamage);
+	}
+    }
+    unwrap (pScrPriv, pScreen, DestroyPixmap);
+    (*pScreen->DestroyPixmap) (pPixmap);
+    wrap (pScrPriv, pScreen, DestroyPixmap, damageDestroyPixmap);
+    return TRUE;
+}
+
+static void
+damageCopyWindow(WindowPtr	pWindow,
+		 DDXPointRec	ptOldOrg,
+		 RegionPtr	prgnSrc)
+{
+    ScreenPtr pScreen = pWindow->drawable.pScreen;
+    damageScrPriv(pScreen);
+
+    if (getWindowDamage (pWindow))
+    {
+	int dx = pWindow->drawable.x - ptOldOrg.x;
+	int dy = pWindow->drawable.y - ptOldOrg.y;
+	
+	/*
+	 * The region comes in source relative, but the damage occurs
+	 * at the destination location.  Translate back and forth.
+	 */
+	RegionTranslate(prgnSrc, dx, dy);
+	damageRegionAppend (&pWindow->drawable, prgnSrc, FALSE, -1);
+	RegionTranslate(prgnSrc, -dx, -dy);
+    }
+    unwrap (pScrPriv, pScreen, CopyWindow);
+    (*pScreen->CopyWindow) (pWindow, ptOldOrg, prgnSrc);
+    damageRegionProcessPending (&pWindow->drawable);
+    wrap (pScrPriv, pScreen, CopyWindow, damageCopyWindow);
+}
+
+static GCOps damageGCOps = {
+    damageFillSpans, damageSetSpans,
+    damagePutImage, damageCopyArea,
+    damageCopyPlane, damagePolyPoint,
+    damagePolylines, damagePolySegment,
+    damagePolyRectangle, damagePolyArc,
+    damageFillPolygon, damagePolyFillRect,
+    damagePolyFillArc, damagePolyText8,
+    damagePolyText16, damageImageText8,
+    damageImageText16, damageImageGlyphBlt,
+    damagePolyGlyphBlt, damagePushPixels,
+};
+
+static void
+damageSetWindowPixmap (WindowPtr pWindow, PixmapPtr pPixmap)
+{
+    DamagePtr	pDamage;
+    ScreenPtr	pScreen = pWindow->drawable.pScreen;
+    damageScrPriv(pScreen);
+
+    if ((pDamage = damageGetWinPriv(pWindow)))
+    {
+	PixmapPtr   pOldPixmap = (*pScreen->GetWindowPixmap) (pWindow);
+	DamagePtr   *pPrev = getPixmapDamageRef(pOldPixmap);
+	
+	while (pDamage)
+	{
+	    damageRemoveDamage (pPrev, pDamage);
+	    pDamage = pDamage->pNextWin;
+	}
+    }
+    unwrap (pScrPriv, pScreen, SetWindowPixmap);
+    (*pScreen->SetWindowPixmap) (pWindow, pPixmap);
+    wrap (pScrPriv, pScreen, SetWindowPixmap, damageSetWindowPixmap);
+    if ((pDamage = damageGetWinPriv(pWindow)))
+    {
+	DamagePtr   *pPrev = getPixmapDamageRef(pPixmap);
+	
+	while (pDamage)
+	{
+	    damageInsertDamage (pPrev, pDamage);
+	    pDamage = pDamage->pNextWin;
+	}
+    }
+}
+
+static Bool
+damageDestroyWindow (WindowPtr pWindow)
+{
+    DamagePtr	pDamage;
+    ScreenPtr	pScreen = pWindow->drawable.pScreen;
+    Bool	ret;
+    damageScrPriv(pScreen);
+
+    while ((pDamage = damageGetWinPriv(pWindow)))
+    {
+	DamageUnregister (&pWindow->drawable, pDamage);
+	DamageDestroy (pDamage);
+    }
+    unwrap (pScrPriv, pScreen, DestroyWindow);
+    ret = (*pScreen->DestroyWindow) (pWindow);
+    wrap (pScrPriv, pScreen, DestroyWindow, damageDestroyWindow);
+    return ret;
+}
+
+static Bool
+damageCloseScreen (int i, ScreenPtr pScreen)
+{
+    damageScrPriv(pScreen);
+
+    unwrap (pScrPriv, pScreen, DestroyPixmap);
+    unwrap (pScrPriv, pScreen, CreateGC);
+    unwrap (pScrPriv, pScreen, CopyWindow);
+    unwrap (pScrPriv, pScreen, CloseScreen);
+    free(pScrPriv);
+    return (*pScreen->CloseScreen) (i, pScreen);
+}
+
+/**
+ * Default implementations of the damage management functions.
+ */
+void miDamageCreate (DamagePtr pDamage)
+{
+}
+
+void miDamageRegister (DrawablePtr pDrawable, DamagePtr pDamage)
+{
+}
+
+void miDamageUnregister (DrawablePtr pDrawable, DamagePtr pDamage)
+{
+}
+
+void miDamageDestroy (DamagePtr pDamage)
+{
+}
+
+/**
+ * Public functions for consumption outside this file.
+ */
+
+Bool
+DamageSetup (ScreenPtr pScreen)
+{
+    DamageScrPrivPtr	pScrPriv;
+    PictureScreenPtr	ps = GetPictureScreenIfSet(pScreen);
+    const DamageScreenFuncsRec miFuncs = {
+	miDamageCreate, miDamageRegister, miDamageUnregister, miDamageDestroy
+    };
+
+    if (!dixRegisterPrivateKey(&damageScrPrivateKeyRec, PRIVATE_SCREEN, 0))
+	return FALSE;
+
+    if (dixLookupPrivate(&pScreen->devPrivates, damageScrPrivateKey))
+	return TRUE;
+
+    if (!dixRegisterPrivateKey(&damageGCPrivateKeyRec, PRIVATE_GC, sizeof(DamageGCPrivRec)))
+	return FALSE;
+
+    if (!dixRegisterPrivateKey(&damagePixPrivateKeyRec, PRIVATE_PIXMAP, 0))
+	return FALSE;
+
+    if (!dixRegisterPrivateKey(&damageWinPrivateKeyRec, PRIVATE_WINDOW, 0))
+	return FALSE;
+
+    pScrPriv = malloc(sizeof (DamageScrPrivRec));
+    if (!pScrPriv)
+	return FALSE;
+
+    pScrPriv->internalLevel = 0;
+    pScrPriv->pScreenDamage = 0;
+
+    wrap (pScrPriv, pScreen, DestroyPixmap, damageDestroyPixmap);
+    wrap (pScrPriv, pScreen, CreateGC, damageCreateGC);
+    wrap (pScrPriv, pScreen, DestroyWindow, damageDestroyWindow);
+    wrap (pScrPriv, pScreen, SetWindowPixmap, damageSetWindowPixmap);
+    wrap (pScrPriv, pScreen, CopyWindow, damageCopyWindow);
+    wrap (pScrPriv, pScreen, CloseScreen, damageCloseScreen);
+    if (ps) {
+	wrap (pScrPriv, ps, Glyphs, damageGlyphs);
+	wrap (pScrPriv, ps, Composite, damageComposite);
+	wrap (pScrPriv, ps, AddTraps, damageAddTraps);
+    }
+
+    pScrPriv->funcs = miFuncs;
+
+    dixSetPrivate(&pScreen->devPrivates, damageScrPrivateKey, pScrPriv);
+    return TRUE;
+}
+
+DamagePtr
+DamageCreate (DamageReportFunc  damageReport,
+	      DamageDestroyFunc	damageDestroy,
+	      DamageReportLevel	damageLevel,
+	      Bool		isInternal,
+	      ScreenPtr		pScreen,
+	      void		*closure)
+{
+    damageScrPriv(pScreen);
+    DamagePtr	pDamage;
+
+    pDamage = dixAllocateObjectWithPrivates(DamageRec, PRIVATE_DAMAGE);
+    if (!pDamage)
+	return 0;
+    pDamage->pNext = 0;
+    pDamage->pNextWin = 0;
+    RegionNull(&pDamage->damage);
+    RegionNull(&pDamage->pendingDamage);
+    
+    pDamage->damageLevel = damageLevel;
+    pDamage->isInternal = isInternal;
+    pDamage->closure = closure;
+    pDamage->isWindow = FALSE;
+    pDamage->pDrawable = 0;
+    pDamage->reportAfter = FALSE;
+
+    pDamage->damageReport = damageReport;
+    pDamage->damageReportPostRendering = NULL;
+    pDamage->damageDestroy = damageDestroy;
+    pDamage->damageMarker = NULL;
+    pDamage->pScreen = pScreen;
+
+    (*pScrPriv->funcs.Create) (pDamage);
+
+    return pDamage;
+}
+
+void
+DamageRegister (DrawablePtr pDrawable,
+		DamagePtr   pDamage)
+{
+    ScreenPtr pScreen = pDrawable->pScreen;
+    damageScrPriv(pScreen);
+
+#if DAMAGE_VALIDATE_ENABLE
+    if (pDrawable->pScreen != pDamage->pScreen)
+    {
+	ErrorF ("DamageRegister called with mismatched screens\n");
+	OsAbort ();
+    }
+#endif
+
+    if (pDrawable->type == DRAWABLE_WINDOW)
+    {
+	WindowPtr   pWindow = (WindowPtr) pDrawable;
+	winDamageRef(pWindow);
+
+#if DAMAGE_VALIDATE_ENABLE
+	DamagePtr   pOld;
+	
+	for (pOld = *pPrev; pOld; pOld = pOld->pNextWin)
+	    if (pOld == pDamage) {
+		ErrorF ("Damage already on window list\n");
+		OsAbort ();
+	    }
+#endif
+	pDamage->pNextWin = *pPrev;
+	*pPrev = pDamage;
+	pDamage->isWindow = TRUE;
+    }
+    else
+	pDamage->isWindow = FALSE;
+    pDamage->pDrawable = pDrawable;
+    damageInsertDamage (getDrawableDamageRef (pDrawable), pDamage);
+    (*pScrPriv->funcs.Register) (pDrawable, pDamage);
+}
+
+void
+DamageDrawInternal (ScreenPtr pScreen, Bool enable)
+{
+    damageScrPriv (pScreen);
+
+    pScrPriv->internalLevel += enable ? 1 : -1;
+}
+
+void
+DamageUnregister (DrawablePtr	    pDrawable,
+		  DamagePtr	    pDamage)
+{
+    ScreenPtr pScreen = pDrawable->pScreen;
+    damageScrPriv(pScreen);
+
+    (*pScrPriv->funcs.Unregister) (pDrawable, pDamage);
+
+    if (pDrawable->type == DRAWABLE_WINDOW)
+    {
+	WindowPtr   pWindow = (WindowPtr) pDrawable;
+	winDamageRef (pWindow);
+#if DAMAGE_VALIDATE_ENABLE
+	int	found = 0;
+#endif
+
+	while (*pPrev)
+	{
+	    if (*pPrev == pDamage)
+	    {
+		*pPrev = pDamage->pNextWin;
+#if DAMAGE_VALIDATE_ENABLE
+		found = 1;
+#endif
+		break;
+	    }
+	    pPrev = &(*pPrev)->pNextWin;
+	}
+#if DAMAGE_VALIDATE_ENABLE
+	if (!found) {
+	    ErrorF ("Damage not on window list\n");
+	    OsAbort ();
+	}
+#endif
+    }
+    pDamage->pDrawable = 0;
+    damageRemoveDamage (getDrawableDamageRef (pDrawable), pDamage);
+}
+
+void
+DamageDestroy (DamagePtr    pDamage)
+{
+    ScreenPtr pScreen = pDamage->pScreen;
+    damageScrPriv(pScreen);
+
+    if (pDamage->damageDestroy)
+	(*pDamage->damageDestroy) (pDamage, pDamage->closure);
+    (*pScrPriv->funcs.Destroy) (pDamage);
+    RegionUninit(&pDamage->damage);
+    RegionUninit(&pDamage->pendingDamage);
+    dixFreeObjectWithPrivates(pDamage, PRIVATE_DAMAGE);
+}
+
+Bool
+DamageSubtract (DamagePtr	    pDamage,
+		const RegionPtr	    pRegion)
+{
+    RegionPtr	pClip;
+    RegionRec	pixmapClip;
+    DrawablePtr	pDrawable = pDamage->pDrawable;
+    
+    RegionSubtract(&pDamage->damage, &pDamage->damage, pRegion);
+    if (pDrawable)
+    {
+	if (pDrawable->type == DRAWABLE_WINDOW)
+	    pClip = &((WindowPtr) pDrawable)->borderClip;
+	else
+	{
+	    BoxRec  box;
+
+	    box.x1 = pDrawable->x;
+	    box.y1 = pDrawable->y;
+	    box.x2 = pDrawable->x + pDrawable->width;
+	    box.y2 = pDrawable->y + pDrawable->height;
+	    RegionInit(&pixmapClip, &box, 1);
+	    pClip = &pixmapClip;
+	}
+	RegionTranslate(&pDamage->damage, pDrawable->x, pDrawable->y);
+	RegionIntersect(&pDamage->damage, &pDamage->damage, pClip);
+	RegionTranslate(&pDamage->damage, -pDrawable->x, -pDrawable->y);
+	if (pDrawable->type != DRAWABLE_WINDOW)
+	    RegionUninit(&pixmapClip);
+    }
+    return RegionNotEmpty(&pDamage->damage);
+}
+
+void
+DamageEmpty (DamagePtr	    pDamage)
+{
+    RegionEmpty(&pDamage->damage);
+}
+
+RegionPtr
+DamageRegion (DamagePtr		    pDamage)
+{
+    return &pDamage->damage;
+}
+
+RegionPtr
+DamagePendingRegion (DamagePtr	    pDamage)
+{
+    return &pDamage->pendingDamage;
+}
+
+void
+DamageRegionAppend (DrawablePtr pDrawable, RegionPtr pRegion)
+{
+    damageRegionAppend (pDrawable, pRegion, FALSE, -1);
+}
+
+void
+DamageRegionProcessPending (DrawablePtr pDrawable)
+{
+    damageRegionProcessPending (pDrawable);
+}
+
+/* If a damage marker is provided, then this function must be called after rendering is done. */
+/* Please do call back so any future enhancements can assume this function is called. */
+/* There are no strict timing requirements for calling this function, just as soon as (is cheaply) possible. */
+void
+DamageRegionRendered (DrawablePtr pDrawable, DamagePtr pDamage, RegionPtr pOldDamage, RegionPtr pRegion)
+{
+    if (pDamage->damageReportPostRendering)
+	damageReportDamagePostRendering (pDamage, pOldDamage, pRegion);
+}
+
+/* This call is very odd, i'm leaving it intact for API sake, but please don't use it. */
+void
+DamageDamageRegion (DrawablePtr	pDrawable,
+		    const RegionPtr	pRegion)
+{
+    damageRegionAppend (pDrawable, pRegion, FALSE, -1);
+
+    /* Go back and report this damage for DamagePtrs with reportAfter set, since
+     * this call isn't part of an in-progress drawing op in the call chain and
+     * the DDX probably just wants to know about it right away.
+     */
+    damageRegionProcessPending (pDrawable);
+}
+
+void
+DamageSetReportAfterOp (DamagePtr pDamage, Bool reportAfter)
+{
+    pDamage->reportAfter = reportAfter;
+}
+
+void
+DamageSetPostRenderingFunctions(DamagePtr pDamage, DamageReportFunc damageReportPostRendering,
+				DamageMarkerFunc damageMarker)
+{
+    pDamage->damageReportPostRendering = damageReportPostRendering;
+    pDamage->damageMarker = damageMarker;
+}
+
+DamageScreenFuncsPtr
+DamageGetScreenFuncs (ScreenPtr pScreen)
+{
+    damageScrPriv(pScreen);
+    return &pScrPriv->funcs;
+}
+
+void
+DamageReportDamage (DamagePtr pDamage, RegionPtr pDamageRegion)
+{
+    BoxRec tmpBox;
+    RegionRec tmpRegion;
+    Bool was_empty;
+
+    switch (pDamage->damageLevel) {
+    case DamageReportRawRegion:
+	RegionUnion(&pDamage->damage, &pDamage->damage,
+			 pDamageRegion);
+	(*pDamage->damageReport) (pDamage, pDamageRegion, pDamage->closure);
+	break;
+    case DamageReportDeltaRegion:
+	RegionNull(&tmpRegion);
+	RegionSubtract(&tmpRegion, pDamageRegion, &pDamage->damage);
+	if (RegionNotEmpty(&tmpRegion)) {
+	    RegionUnion(&pDamage->damage, &pDamage->damage,
+			 pDamageRegion);
+	    (*pDamage->damageReport) (pDamage, &tmpRegion, pDamage->closure);
+	}
+	RegionUninit(&tmpRegion);
+	break;
+    case DamageReportBoundingBox:
+	tmpBox = *RegionExtents(&pDamage->damage);
+	RegionUnion(&pDamage->damage, &pDamage->damage,
+		     pDamageRegion);
+	if (!BOX_SAME (&tmpBox, RegionExtents(&pDamage->damage))) {
+	    (*pDamage->damageReport) (pDamage, &pDamage->damage,
+				      pDamage->closure);
+	}
+	break;
+    case DamageReportNonEmpty:
+	was_empty = !RegionNotEmpty(&pDamage->damage);
+	RegionUnion(&pDamage->damage, &pDamage->damage,
+		     pDamageRegion);
+	if (was_empty && RegionNotEmpty(&pDamage->damage)) {
+	    (*pDamage->damageReport) (pDamage, &pDamage->damage,
+				      pDamage->closure);
+	}
+	break;
+    case DamageReportNone:
+	RegionUnion(&pDamage->damage, &pDamage->damage,
+		     pDamageRegion);
+	break;
+    }
+}
+