NXmiexpose.c: use upstream miHandleExposures()

It is (functionally) identical to our code, so why have
duplicate code?

1 files changed, 0 insertions, 274 deletions

diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXmiexpose.c b/nx-X11/programs/Xserver/hw/nxagent/NXmiexpose.c
index 48b565564..ff331ecc2 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/NXmiexpose.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/NXmiexpose.c
@@ -102,280 +102,6 @@ Equipment Corporation.
 
 #include "../../mi/miexpose.c"
 
-/* miHandleExposures 
-    generate a region for exposures for areas that were copied from obscured or
-non-existent areas to non-obscured areas of the destination.  Paint the
-background for the region, if the destination is a window.
-
-NOTE:
-     this should generally be called, even if graphicsExposures is false,
-because this is where bits get recovered from backing store.
-
-NOTE:
-     added argument 'plane' is used to indicate how exposures from backing
-store should be accomplished. If plane is 0 (i.e. no bit plane), CopyArea
-should be used, else a CopyPlane of the indicated plane will be used. The
-exposing is done by the backing store's GraphicsExpose function, of course.
-
-*/
-
-RegionPtr
-miHandleExposures(pSrcDrawable, pDstDrawable,
-		  pGC, srcx, srcy, width, height, dstx, dsty, plane)
-    register DrawablePtr	pSrcDrawable;
-    register DrawablePtr	pDstDrawable;
-    GCPtr 			pGC;
-    int 			srcx, srcy;
-    int 			width, height;
-    int 			dstx, dsty;
-    unsigned long		plane;
-{
-    register ScreenPtr pscr;
-    RegionPtr prgnSrcClip;	/* drawable-relative source clip */
-    RegionRec rgnSrcRec;
-    RegionPtr prgnDstClip;	/* drawable-relative dest clip */
-    RegionRec rgnDstRec;
-    BoxRec srcBox;		/* unclipped source */
-    RegionRec rgnExposed;	/* exposed region, calculated source-
-				   relative, made dst relative to
-				   intersect with visible parts of
-				   dest and send events to client, 
-				   and then screen relative to paint 
-				   the window background
-				*/
-    WindowPtr pSrcWin;
-    BoxRec expBox;
-    Bool extents;
-
-    /*
-     * Set the elements reported by the compiler
-     * as uninitialized.
-     */
-
-    expBox.x1 = 0;
-    expBox.y1 = 0;
-    expBox.x2 = 0;
-    expBox.y2 = 0;
-
-    /* This prevents warning about pscr not being used. */
-    pGC->pScreen = pscr = pGC->pScreen;
-
-    /* avoid work if we can */
-    if (!pGC->graphicsExposures &&
-	(pDstDrawable->type == DRAWABLE_PIXMAP) &&
-	((pSrcDrawable->type == DRAWABLE_PIXMAP) ||
-	 (((WindowPtr)pSrcDrawable)->backStorage == NULL)))
-	return NULL;
-	
-    srcBox.x1 = srcx;
-    srcBox.y1 = srcy;
-    srcBox.x2 = srcx+width;
-    srcBox.y2 = srcy+height;
-
-    if (pSrcDrawable->type != DRAWABLE_PIXMAP)
-    {
-	BoxRec TsrcBox;
-
-	TsrcBox.x1 = srcx + pSrcDrawable->x;
-	TsrcBox.y1 = srcy + pSrcDrawable->y;
-	TsrcBox.x2 = TsrcBox.x1 + width;
-	TsrcBox.y2 = TsrcBox.y1 + height;
-	pSrcWin = (WindowPtr) pSrcDrawable;
-	if (pGC->subWindowMode == IncludeInferiors)
- 	{
-	    prgnSrcClip = NotClippedByChildren (pSrcWin);
-	    if ((RegionContainsRect(prgnSrcClip, &TsrcBox)) == rgnIN)
-	    {
-		RegionDestroy(prgnSrcClip);
-		return NULL;
-	    }
-	}
- 	else
- 	{
-	    if ((RegionContainsRect(&pSrcWin->clipList, &TsrcBox)) == rgnIN)
-		return NULL;
-	    prgnSrcClip = &rgnSrcRec;
-	    RegionNull(prgnSrcClip);
-	    RegionCopy(prgnSrcClip, &pSrcWin->clipList);
-	}
-	RegionTranslate(prgnSrcClip,
-				-pSrcDrawable->x, -pSrcDrawable->y);
-    }
-    else
-    {
-	BoxRec	box;
-
-	if ((srcBox.x1 >= 0) && (srcBox.y1 >= 0) &&
-	    (srcBox.x2 <= pSrcDrawable->width) &&
- 	    (srcBox.y2 <= pSrcDrawable->height))
-	    return NULL;
-
-	box.x1 = 0;
-	box.y1 = 0;
-	box.x2 = pSrcDrawable->width;
-	box.y2 = pSrcDrawable->height;
-	prgnSrcClip = &rgnSrcRec;
-	RegionInit(prgnSrcClip, &box, 1);
-	pSrcWin = (WindowPtr)NULL;
-    }
-
-    if (pDstDrawable == pSrcDrawable)
-    {
-	prgnDstClip = prgnSrcClip;
-    }
-    else if (pDstDrawable->type != DRAWABLE_PIXMAP)
-    {
-	if (pGC->subWindowMode == IncludeInferiors)
-	{
-	    prgnDstClip = NotClippedByChildren((WindowPtr)pDstDrawable);
-	}
-	else
-	{
-	    prgnDstClip = &rgnDstRec;
-	    RegionNull(prgnDstClip);
-	    RegionCopy(prgnDstClip,
-				&((WindowPtr)pDstDrawable)->clipList);
-	}
-	RegionTranslate(prgnDstClip,
-				 -pDstDrawable->x, -pDstDrawable->y);
-    }
-    else
-    {
-	BoxRec	box;
-
-	box.x1 = 0;
-	box.y1 = 0;
-	box.x2 = pDstDrawable->width;
-	box.y2 = pDstDrawable->height;
-	prgnDstClip = &rgnDstRec;
-	RegionInit(prgnDstClip, &box, 1);
-    }
-
-    /* drawable-relative source region */
-    RegionInit(&rgnExposed, &srcBox, 1);
-
-    /* now get the hidden parts of the source box*/
-    RegionSubtract(&rgnExposed, &rgnExposed, prgnSrcClip);
-
-    if (pSrcWin && pSrcWin->backStorage)
-    {
-	/*
-	 * Copy any areas from the source backing store. Modifies
-	 * rgnExposed.
-	 */
-	(* pSrcWin->drawable.pScreen->ExposeCopy) ((WindowPtr)pSrcDrawable,
-					      pDstDrawable,
-					      pGC,
-					      &rgnExposed,
-					      srcx, srcy,
-					      dstx, dsty,
-					      plane);
-    }
-    
-    /* move them over the destination */
-    RegionTranslate(&rgnExposed, dstx-srcx, dsty-srcy);
-
-    /* intersect with visible areas of dest */
-    RegionIntersect(&rgnExposed, &rgnExposed, prgnDstClip);
-
-    /*
-     * If we have LOTS of rectangles, we decide to take the extents
-     * and force an exposure on that.  This should require much less
-     * work overall, on both client and server.  This is cheating, but
-     * isn't prohibited by the protocol ("spontaneous combustion" :-)
-     * for windows.
-     */
-    extents = pGC->graphicsExposures &&
-	      (RegionNumRects(&rgnExposed) > RECTLIMIT) &&
-	      (pDstDrawable->type != DRAWABLE_PIXMAP);
-#ifdef SHAPE
-    if (pSrcWin)
-    {
-	RegionPtr	region;
-    	if (!(region = wClipShape (pSrcWin)))
-    	    region = wBoundingShape (pSrcWin);
-    	/*
-     	 * If you try to CopyArea the extents of a shaped window, compacting the
-     	 * exposed region will undo all our work!
-     	 */
-    	if (extents && pSrcWin && region &&
-	    (RegionContainsRect(region, &srcBox) != rgnIN))
-	    	extents = FALSE;
-    }
-#endif
-    if (extents)
-    {
-	WindowPtr pWin = (WindowPtr)pDstDrawable;
-
-	expBox = *RegionExtents(&rgnExposed);
-	RegionReset(&rgnExposed, &expBox);
-	/* need to clear out new areas of backing store */
-	if (pWin->backStorage)
-	    (void) (* pWin->drawable.pScreen->ClearBackingStore)(
-					 pWin,
-					 expBox.x1,
-					 expBox.y1,
-					 expBox.x2 - expBox.x1,
-					 expBox.y2 - expBox.y1,
-					 FALSE);
-    }
-    if ((pDstDrawable->type != DRAWABLE_PIXMAP) &&
-	(((WindowPtr)pDstDrawable)->backgroundState != None))
-    {
-	WindowPtr pWin = (WindowPtr)pDstDrawable;
-
-	/* make the exposed area screen-relative */
-	RegionTranslate(&rgnExposed,
-				 pDstDrawable->x, pDstDrawable->y);
-
-	if (extents)
-	{
-	    /* PaintWindowBackground doesn't clip, so we have to */
-	    RegionIntersect(&rgnExposed, &rgnExposed, &pWin->clipList);
-	}
-	(*pWin->drawable.pScreen->PaintWindowBackground)(
-			(WindowPtr)pDstDrawable, &rgnExposed, PW_BACKGROUND);
-
-	if (extents)
-	{
-	    RegionReset(&rgnExposed, &expBox);
-	}
-	else
-	    RegionTranslate(&rgnExposed,
-				     -pDstDrawable->x, -pDstDrawable->y);
-    }
-    if (prgnDstClip == &rgnDstRec)
-    {
-	RegionUninit(prgnDstClip);
-    }
-    else if (prgnDstClip != prgnSrcClip)
-    {
-	RegionDestroy(prgnDstClip);
-    }
-
-    if (prgnSrcClip == &rgnSrcRec)
-    {
-	RegionUninit(prgnSrcClip);
-    }
-    else
-    {
-	RegionDestroy(prgnSrcClip);
-    }
-
-    if (pGC->graphicsExposures)
-    {
-	/* don't look */
-	RegionPtr exposed = RegionCreate(NullBox, 0);
-	*exposed = rgnExposed;
-	return exposed;
-    }
-    else
-    {
-	RegionUninit(&rgnExposed);
-	return NULL;
-    }
-}
-
 void 
 miWindowExposures(pWin, prgn, other_exposed)
     WindowPtr pWin;