xserver git update 15/5/2010

1 files changed, 2166 insertions, 2166 deletions

diff --git a/xorg-server/miext/damage/damage.c b/xorg-server/miext/damage/damage.c
index de1857355..f662e928c 100644
--- a/xorg-server/miext/damage/damage.c
+++ b/xorg-server/miext/damage/damage.c
@@ -1,2166 +1,2166 @@
-/*
- * 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 int damageScrPrivateKeyIndex;
-static DevPrivateKey damageScrPrivateKey = &damageScrPrivateKeyIndex;
-static int damagePixPrivateKeyIndex;
-static DevPrivateKey damagePixPrivateKey = &damagePixPrivateKeyIndex;
-static int damageGCPrivateKeyIndex;
-static DevPrivateKey damageGCPrivateKey = &damageGCPrivateKeyIndex;
-static int damageWinPrivateKeyIndex;
-static DevPrivateKey damageWinPrivateKey = &damageWinPrivateKeyIndex;
-
-static DamagePtr *
-getDrawableDamageRef (DrawablePtr pDrawable)
-{
-    PixmapPtr   pPixmap;
-    
-    if (pDrawable->type == DRAWABLE_WINDOW)
-    {
-	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
-damageReportDamage (DamagePtr pDamage, RegionPtr pDamageRegion)
-{
-    BoxRec tmpBox;
-    RegionRec tmpRegion;
-    Bool was_empty;
-
-    switch (pDamage->damageLevel) {
-    case DamageReportRawRegion:
-	REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage,
-			 pDamageRegion);
-	(*pDamage->damageReport) (pDamage, pDamageRegion, pDamage->closure);
-	break;
-    case DamageReportDeltaRegion:
-	REGION_NULL (pScreen, &tmpRegion);
-	REGION_SUBTRACT (pScreen, &tmpRegion, pDamageRegion, &pDamage->damage);
-	if (REGION_NOTEMPTY (pScreen, &tmpRegion)) {
-	    REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage,
-			 pDamageRegion);
-	    (*pDamage->damageReport) (pDamage, &tmpRegion, pDamage->closure);
-	}
-	REGION_UNINIT(pScreen, &tmpRegion);
-	break;
-    case DamageReportBoundingBox:
-	tmpBox = *REGION_EXTENTS (pScreen, &pDamage->damage);
-	REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage,
-		     pDamageRegion);
-	if (!BOX_SAME (&tmpBox, REGION_EXTENTS (pScreen, &pDamage->damage))) {
-	    (*pDamage->damageReport) (pDamage, &pDamage->damage,
-				      pDamage->closure);
-	}
-	break;
-    case DamageReportNonEmpty:
-	was_empty = !REGION_NOTEMPTY(pScreen, &pDamage->damage);
-	REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage,
-		     pDamageRegion);
-	if (was_empty && REGION_NOTEMPTY(pScreen, &pDamage->damage)) {
-	    (*pDamage->damageReport) (pDamage, &pDamage->damage,
-				      pDamage->closure);
-	}
-	break;
-    case DamageReportNone:
-	REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage,
-		     pDamageRegion);
-	break;
-    }
-}
-
-static void
-damageReportDamagePostRendering (DamagePtr pDamage, RegionPtr pOldDamage, RegionPtr pDamageRegion)
-{
-    BoxRec tmpBox;
-    RegionRec tmpRegion, newDamage;
-    Bool was_empty;
-
-    REGION_UNION(pScreem, &newDamage, pOldDamage, pDamageRegion);
-
-    switch (pDamage->damageLevel) {
-    case DamageReportRawRegion:
-	(*pDamage->damageReportPostRendering) (pDamage, pDamageRegion, pDamage->closure);
-	break;
-    case DamageReportDeltaRegion:
-	REGION_NULL (pScreen, &tmpRegion);
-	REGION_SUBTRACT (pScreen, &tmpRegion, pDamageRegion, pOldDamage);
-	if (REGION_NOTEMPTY (pScreen, &tmpRegion)) {
-	    (*pDamage->damageReportPostRendering) (pDamage, &tmpRegion, pDamage->closure);
-	}
-	REGION_UNINIT(pScreen, &tmpRegion);
-	break;
-    case DamageReportBoundingBox:
-	tmpBox = *REGION_EXTENTS (pScreen, pOldDamage);
-	if (!BOX_SAME (&tmpBox, REGION_EXTENTS (pScreen, &newDamage))) {
-	    (*pDamage->damageReportPostRendering) (pDamage, &newDamage,
-				      pDamage->closure);
-	}
-	break;
-    case DamageReportNonEmpty:
-	was_empty = !REGION_NOTEMPTY(pScreen, pOldDamage);
-	if (was_empty && REGION_NOTEMPTY(pScreen, &newDamage)) {
-	    (*pDamage->damageReportPostRendering) (pDamage, &newDamage,
-				      pDamage->closure);
-	}
-	break;
-    case DamageReportNone:
-	break;
-    }
-
-    REGION_UNINIT(pScreen, &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 (!REGION_NOTEMPTY(pScreen, 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)
-        REGION_TRANSLATE (pScreen, pRegion, screen_x, screen_y);
-#endif
-	
-    if (pDrawable->type == DRAWABLE_WINDOW &&
-	((WindowPtr)(pDrawable))->backingStore == NotUseful)
-    {
-	if (subWindowMode == ClipByChildren)
-	{
-	    REGION_INTERSECT(pScreen, pRegion, pRegion,
-			     &((WindowPtr)(pDrawable))->clipList);
-	}
-	else if (subWindowMode == IncludeInferiors)
-	{
-	    RegionPtr pTempRegion =
-		NotClippedByChildren((WindowPtr)(pDrawable));
-	    REGION_INTERSECT(pScreen, pRegion, pRegion, pTempRegion);
-	    REGION_DESTROY(pScreen, pTempRegion);
-	}
-	/* If subWindowMode is set to an invalid value, don't perform
-	 * any drawable-based clipping. */
-    }
-        
-
-    REGION_NULL (pScreen, &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 (pDamage->pDrawable->type != DRAWABLE_WINDOW)
-	{
-	    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) {
-		REGION_INTERSECT (pScreen, 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;
-		REGION_INIT(pScreen, &pixClip, &box, 1);
-		REGION_INTERSECT (pScreen, pDamageRegion, pRegion, &pixClip);
-		REGION_UNINIT(pScreen, &pixClip);
-	    }
-	    /*
-	     * Short circuit empty results
-	     */
-	    if (!REGION_NOTEMPTY(pScreen, 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)
-	    REGION_TRANSLATE (pScreen, pDamageRegion, -draw_x, -draw_y);
-
-	/* Store damage region if needed after submission. */
-	if (pDamage->reportAfter || pDamage->damageMarker)
-	    REGION_UNION(pScreen, &pDamage->pendingDamage,
-			 &pDamage->pendingDamage, pDamageRegion);
-
-	/* Duplicate current damage if needed. */
-	if (pDamage->damageMarker)
-	    REGION_COPY(pScreen, &pDamage->backupDamage, &pDamage->damage);
-
-	/* Report damage now, if desired. */
-	if (!pDamage->reportAfter) {
-	    if (pDamage->damageReport)
-		damageReportDamage (pDamage, pDamageRegion);
-	    else
-		REGION_UNION(pScreen, &pDamage->damage,
-			 &pDamage->damage, pDamageRegion);
-	}
-
-	/*
-	 * translate original region back
-	 */
-	if (pDamageRegion == pRegion && (draw_x || draw_y))
-	    REGION_TRANSLATE (pScreen, pDamageRegion, draw_x, draw_y);
-    }
-#ifdef COMPOSITE
-    if (screen_x || screen_y)
-	REGION_TRANSLATE (pScreen, pRegion, -screen_x, -screen_y);
-#endif
-    
-    REGION_UNINIT (pScreen, &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
-		REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage,
-			&pDamage->pendingDamage);
-	}
-
-	if (pDamage->reportAfter || pDamage->damageMarker)
-	    REGION_EMPTY (pScreen, &pDamage->pendingDamage);
-	if (pDamage->damageMarker)
-	    REGION_EMPTY (pScreen, &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;
-
-    REGION_INIT (pDrawable->pScreen, &region, pBox, 1);
-#if DAMAGE_DEBUG_ENABLE
-    _damageRegionAppend (pDrawable, &region, TRUE, subWindowMode, where);
-#else
-    damageRegionAppend (pDrawable, &region, TRUE, subWindowMode);
-#endif
-    REGION_UNINIT (pDrawable->pScreen, &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;
-
-    pGC->pCompositeClip = 0;
-    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;
-}
-
-#ifdef NOTUSED
-static void
-damageWrapGC (GCPtr pGC)
-{
-    damageGCPriv(pGC);
-
-    pGCPriv->ops = NULL;
-    pGCPriv->funcs = pGC->funcs;
-    pGC->funcs = &damageGCFuncs;
-}
-
-static void
-damageUnwrapGC (GCPtr pGC)
-{
-    damageGCPriv(pGC);
-
-    pGC->funcs = pGCPriv->funcs;
-    if (pGCPriv->ops)
-	pGC->ops = pGCPriv->ops;
-}
-#endif
-
-#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 ||\
-				  REGION_NOTEMPTY(d->pScreen, \
-						  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) && \
-				 REGION_NOTEMPTY(pScreen, 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);
-    
-    /* The driver will only call SourceValidate() when pSrc != pDst,
-     * but the software sprite (misprite.c) always need to know when a
-     * drawable is copied so it can remove the sprite. See #1030. */
-    if ((pSrc == pDst) && pSrc->pScreen->SourceValidate &&
-	pSrc->type == DRAWABLE_WINDOW &&
-	((WindowPtr)pSrc)->viewable)
-    {
-	(*pSrc->pScreen->SourceValidate) (pSrc, srcx, srcy, width, height);
-    }
-    
-    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);
-
-    /* The driver will only call SourceValidate() when pSrc != pDst,
-     * but the software sprite (misprite.c) always need to know when a
-     * drawable is copied so it can remove the sprite. See #1030. */
-    if ((pSrc == pDst) && pSrc->pScreen->SourceValidate &&
-	pSrc->type == DRAWABLE_WINDOW &&
-	((WindowPtr)pSrc)->viewable)
-    {
-        (*pSrc->pScreen->SourceValidate) (pSrc, srcx, srcy, width, height);
-    }
-
-    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 + pRectsTmp->width;
-	box.y1 = pRectsTmp->y;
-	box.y2 = box.y1 + 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 = xalloc(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));
-    }
-    xfree(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.
-	 */
-	REGION_TRANSLATE (pScreen, prgnSrc, dx, dy);
-	damageRegionAppend (&pWindow->drawable, prgnSrc, FALSE, -1);
-	REGION_TRANSLATE (pScreen, 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,
-    {NULL}		/* devPrivate */
-};
-
-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);
-    xfree (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 (dixLookupPrivate(&pScreen->devPrivates, damageScrPrivateKey))
-	return TRUE;
-
-    if (!dixRequestPrivate(damageGCPrivateKey, sizeof(DamageGCPrivRec)))
-	return FALSE;
-
-    pScrPriv = xalloc (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 = xalloc (sizeof (DamageRec));
-    if (!pDamage)
-	return 0;
-    pDamage->pNext = 0;
-    pDamage->pNextWin = 0;
-    REGION_NULL(pScreen, &pDamage->damage);
-    REGION_NULL(pScreen, &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;
-    pDamage->devPrivates = NULL;
-
-    (*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);
-    dixFreePrivates(pDamage->devPrivates);
-    pDamage->devPrivates = NULL;
-    REGION_UNINIT (pScreen, &pDamage->damage);
-    REGION_UNINIT (pScreen, &pDamage->pendingDamage);
-    xfree (pDamage);
-}
-
-Bool
-DamageSubtract (DamagePtr	    pDamage,
-		const RegionPtr	    pRegion)
-{
-    RegionPtr	pClip;
-    RegionRec	pixmapClip;
-    DrawablePtr	pDrawable = pDamage->pDrawable;
-    
-    REGION_SUBTRACT (pDrawable->pScreen, &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;
-	    REGION_INIT (pDrawable->pScreen, &pixmapClip, &box, 1);
-	    pClip = &pixmapClip;
-	}
-	REGION_TRANSLATE (pDrawable->pScreen, &pDamage->damage, pDrawable->x, pDrawable->y);
-	REGION_INTERSECT (pDrawable->pScreen, &pDamage->damage, &pDamage->damage, pClip);
-	REGION_TRANSLATE (pDrawable->pScreen, &pDamage->damage, -pDrawable->x, -pDrawable->y);
-	if (pDrawable->type != DRAWABLE_WINDOW)
-	    REGION_UNINIT(pDrawable->pScreen, &pixmapClip);
-    }
-    return REGION_NOTEMPTY (pDrawable->pScreen, &pDamage->damage);
-}
-
-void
-DamageEmpty (DamagePtr	    pDamage)
-{
-    REGION_EMPTY (pDamage->pDrawable->pScreen, &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,
-		    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;
-}
+/*

+ * 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 int damageScrPrivateKeyIndex;

+static DevPrivateKey damageScrPrivateKey = &damageScrPrivateKeyIndex;

+static int damagePixPrivateKeyIndex;

+static DevPrivateKey damagePixPrivateKey = &damagePixPrivateKeyIndex;

+static int damageGCPrivateKeyIndex;

+static DevPrivateKey damageGCPrivateKey = &damageGCPrivateKeyIndex;

+static int damageWinPrivateKeyIndex;

+static DevPrivateKey damageWinPrivateKey = &damageWinPrivateKeyIndex;

+

+static DamagePtr *

+getDrawableDamageRef (DrawablePtr pDrawable)

+{

+    PixmapPtr   pPixmap;

+    

+    if (pDrawable->type == DRAWABLE_WINDOW)

+    {

+	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

+damageReportDamage (DamagePtr pDamage, RegionPtr pDamageRegion)

+{

+    BoxRec tmpBox;

+    RegionRec tmpRegion;

+    Bool was_empty;

+

+    switch (pDamage->damageLevel) {

+    case DamageReportRawRegion:

+	REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage,

+			 pDamageRegion);

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

+	break;

+    case DamageReportDeltaRegion:

+	REGION_NULL (pScreen, &tmpRegion);

+	REGION_SUBTRACT (pScreen, &tmpRegion, pDamageRegion, &pDamage->damage);

+	if (REGION_NOTEMPTY (pScreen, &tmpRegion)) {

+	    REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage,

+			 pDamageRegion);

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

+	}

+	REGION_UNINIT(pScreen, &tmpRegion);

+	break;

+    case DamageReportBoundingBox:

+	tmpBox = *REGION_EXTENTS (pScreen, &pDamage->damage);

+	REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage,

+		     pDamageRegion);

+	if (!BOX_SAME (&tmpBox, REGION_EXTENTS (pScreen, &pDamage->damage))) {

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

+				      pDamage->closure);

+	}

+	break;

+    case DamageReportNonEmpty:

+	was_empty = !REGION_NOTEMPTY(pScreen, &pDamage->damage);

+	REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage,

+		     pDamageRegion);

+	if (was_empty && REGION_NOTEMPTY(pScreen, &pDamage->damage)) {

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

+				      pDamage->closure);

+	}

+	break;

+    case DamageReportNone:

+	REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage,

+		     pDamageRegion);

+	break;

+    }

+}

+

+static void

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

+{

+    BoxRec tmpBox;

+    RegionRec tmpRegion, newDamage;

+    Bool was_empty;

+

+    REGION_UNION(pScreem, &newDamage, pOldDamage, pDamageRegion);

+

+    switch (pDamage->damageLevel) {

+    case DamageReportRawRegion:

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

+	break;

+    case DamageReportDeltaRegion:

+	REGION_NULL (pScreen, &tmpRegion);

+	REGION_SUBTRACT (pScreen, &tmpRegion, pDamageRegion, pOldDamage);

+	if (REGION_NOTEMPTY (pScreen, &tmpRegion)) {

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

+	}

+	REGION_UNINIT(pScreen, &tmpRegion);

+	break;

+    case DamageReportBoundingBox:

+	tmpBox = *REGION_EXTENTS (pScreen, pOldDamage);

+	if (!BOX_SAME (&tmpBox, REGION_EXTENTS (pScreen, &newDamage))) {

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

+				      pDamage->closure);

+	}

+	break;

+    case DamageReportNonEmpty:

+	was_empty = !REGION_NOTEMPTY(pScreen, pOldDamage);

+	if (was_empty && REGION_NOTEMPTY(pScreen, &newDamage)) {

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

+				      pDamage->closure);

+	}

+	break;

+    case DamageReportNone:

+	break;

+    }

+

+    REGION_UNINIT(pScreen, &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 (!REGION_NOTEMPTY(pScreen, 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)

+        REGION_TRANSLATE (pScreen, pRegion, screen_x, screen_y);

+#endif

+	

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

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

+    {

+	if (subWindowMode == ClipByChildren)

+	{

+	    REGION_INTERSECT(pScreen, pRegion, pRegion,

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

+	}

+	else if (subWindowMode == IncludeInferiors)

+	{

+	    RegionPtr pTempRegion =

+		NotClippedByChildren((WindowPtr)(pDrawable));

+	    REGION_INTERSECT(pScreen, pRegion, pRegion, pTempRegion);

+	    REGION_DESTROY(pScreen, pTempRegion);

+	}

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

+	 * any drawable-based clipping. */

+    }

+        

+

+    REGION_NULL (pScreen, &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 (pDamage->pDrawable->type != DRAWABLE_WINDOW)

+	{

+	    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) {

+		REGION_INTERSECT (pScreen, 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;

+		REGION_INIT(pScreen, &pixClip, &box, 1);

+		REGION_INTERSECT (pScreen, pDamageRegion, pRegion, &pixClip);

+		REGION_UNINIT(pScreen, &pixClip);

+	    }

+	    /*

+	     * Short circuit empty results

+	     */

+	    if (!REGION_NOTEMPTY(pScreen, 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)

+	    REGION_TRANSLATE (pScreen, pDamageRegion, -draw_x, -draw_y);

+

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

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

+	    REGION_UNION(pScreen, &pDamage->pendingDamage,

+			 &pDamage->pendingDamage, pDamageRegion);

+

+	/* Duplicate current damage if needed. */

+	if (pDamage->damageMarker)

+	    REGION_COPY(pScreen, &pDamage->backupDamage, &pDamage->damage);

+

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

+	if (!pDamage->reportAfter) {

+	    if (pDamage->damageReport)

+		damageReportDamage (pDamage, pDamageRegion);

+	    else

+		REGION_UNION(pScreen, &pDamage->damage,

+			 &pDamage->damage, pDamageRegion);

+	}

+

+	/*

+	 * translate original region back

+	 */

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

+	    REGION_TRANSLATE (pScreen, pDamageRegion, draw_x, draw_y);

+    }

+#ifdef COMPOSITE

+    if (screen_x || screen_y)

+	REGION_TRANSLATE (pScreen, pRegion, -screen_x, -screen_y);

+#endif

+    

+    REGION_UNINIT (pScreen, &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

+		REGION_UNION(pScreen, &pDamage->damage, &pDamage->damage,

+			&pDamage->pendingDamage);

+	}

+

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

+	    REGION_EMPTY (pScreen, &pDamage->pendingDamage);

+	if (pDamage->damageMarker)

+	    REGION_EMPTY (pScreen, &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;

+

+    REGION_INIT (pDrawable->pScreen, &region, pBox, 1);

+#if DAMAGE_DEBUG_ENABLE

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

+#else

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

+#endif

+    REGION_UNINIT (pDrawable->pScreen, &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;

+

+    pGC->pCompositeClip = 0;

+    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;

+}

+

+#ifdef NOTUSED

+static void

+damageWrapGC (GCPtr pGC)

+{

+    damageGCPriv(pGC);

+

+    pGCPriv->ops = NULL;

+    pGCPriv->funcs = pGC->funcs;

+    pGC->funcs = &damageGCFuncs;

+}

+

+static void

+damageUnwrapGC (GCPtr pGC)

+{

+    damageGCPriv(pGC);

+

+    pGC->funcs = pGCPriv->funcs;

+    if (pGCPriv->ops)

+	pGC->ops = pGCPriv->ops;

+}

+#endif

+

+#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 ||\

+				  REGION_NOTEMPTY(d->pScreen, \

+						  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) && \

+				 REGION_NOTEMPTY(pScreen, 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);

+    

+    /* The driver will only call SourceValidate() when pSrc != pDst,

+     * but the software sprite (misprite.c) always need to know when a

+     * drawable is copied so it can remove the sprite. See #1030. */

+    if ((pSrc == pDst) && pSrc->pScreen->SourceValidate &&

+	pSrc->type == DRAWABLE_WINDOW &&

+	((WindowPtr)pSrc)->viewable)

+    {

+	(*pSrc->pScreen->SourceValidate) (pSrc, srcx, srcy, width, height);

+    }

+    

+    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);

+

+    /* The driver will only call SourceValidate() when pSrc != pDst,

+     * but the software sprite (misprite.c) always need to know when a

+     * drawable is copied so it can remove the sprite. See #1030. */

+    if ((pSrc == pDst) && pSrc->pScreen->SourceValidate &&

+	pSrc->type == DRAWABLE_WINDOW &&

+	((WindowPtr)pSrc)->viewable)

+    {

+        (*pSrc->pScreen->SourceValidate) (pSrc, srcx, srcy, width, height);

+    }

+

+    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 + pRectsTmp->width;

+	box.y1 = pRectsTmp->y;

+	box.y2 = box.y1 + 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.

+	 */

+	REGION_TRANSLATE (pScreen, prgnSrc, dx, dy);

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

+	REGION_TRANSLATE (pScreen, 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,

+    {NULL}		/* devPrivate */

+};

+

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

+	return TRUE;

+

+    if (!dixRequestPrivate(damageGCPrivateKey, sizeof(DamageGCPrivRec)))

+	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 = malloc(sizeof (DamageRec));

+    if (!pDamage)

+	return 0;

+    pDamage->pNext = 0;

+    pDamage->pNextWin = 0;

+    REGION_NULL(pScreen, &pDamage->damage);

+    REGION_NULL(pScreen, &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;

+    pDamage->devPrivates = NULL;

+

+    (*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);

+    dixFreePrivates(pDamage->devPrivates);

+    pDamage->devPrivates = NULL;

+    REGION_UNINIT (pScreen, &pDamage->damage);

+    REGION_UNINIT (pScreen, &pDamage->pendingDamage);

+    free(pDamage);

+}

+

+Bool

+DamageSubtract (DamagePtr	    pDamage,

+		const RegionPtr	    pRegion)

+{

+    RegionPtr	pClip;

+    RegionRec	pixmapClip;

+    DrawablePtr	pDrawable = pDamage->pDrawable;

+    

+    REGION_SUBTRACT (pDrawable->pScreen, &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;

+	    REGION_INIT (pDrawable->pScreen, &pixmapClip, &box, 1);

+	    pClip = &pixmapClip;

+	}

+	REGION_TRANSLATE (pDrawable->pScreen, &pDamage->damage, pDrawable->x, pDrawable->y);

+	REGION_INTERSECT (pDrawable->pScreen, &pDamage->damage, &pDamage->damage, pClip);

+	REGION_TRANSLATE (pDrawable->pScreen, &pDamage->damage, -pDrawable->x, -pDrawable->y);

+	if (pDrawable->type != DRAWABLE_WINDOW)

+	    REGION_UNINIT(pDrawable->pScreen, &pixmapClip);

+    }

+    return REGION_NOTEMPTY (pDrawable->pScreen, &pDamage->damage);

+}

+

+void

+DamageEmpty (DamagePtr	    pDamage)

+{

+    REGION_EMPTY (pDamage->pDrawable->pScreen, &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,

+		    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;

+}