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+/* $XFree86: xc/programs/Xserver/afb/afbfillrct.c,v 3.1 1998/03/20 21:04:54 hohndel Exp $ */
+/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
+/***********************************************************
+
+Copyright (c) 1987 X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from the X Consortium.
+
+
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+******************************************************************/
+/* $XConsortium: afbfillrct.c,v 5.10 94/04/17 20:28:21 dpw Exp $ */
+
+#include "X.h"
+#include "Xprotostr.h"
+#include "pixmapstr.h"
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "miscstruct.h"
+#include "regionstr.h"
+#include "scrnintstr.h"
+
+#include "afb.h"
+#include "maskbits.h"
+
+#define MODEQ(a, b) ((a) %= (b))
+void afbPaintOddSize();
+
+/*
+ filled rectangles.
+ translate the rectangles, clip them, and call the
+helper function in the GC.
+*/
+
+#define NUM_STACK_RECTS 1024
+
+void
+afbPolyFillRect(pDrawable, pGC, nrectFill, prectInit)
+ DrawablePtr pDrawable;
+ GCPtr pGC;
+ int nrectFill; /* number of rectangles to fill */
+ xRectangle *prectInit; /* Pointer to first rectangle to fill */
+{
+ xRectangle *prect;
+ RegionPtr prgnClip;
+ register BoxPtr pbox;
+ register BoxPtr pboxClipped;
+ BoxPtr pboxClippedBase;
+ BoxPtr pextent;
+ BoxRec stackRects[NUM_STACK_RECTS];
+ int numRects;
+ int n;
+ int xorg, yorg;
+ afbPrivGC *priv;
+ PixmapPtr ppix;
+ unsigned char *rrops;
+ unsigned char *rropsOS;
+
+ priv = (afbPrivGC *)pGC->devPrivates[afbGCPrivateIndex].ptr;
+ ppix = pGC->pRotatedPixmap;
+ prgnClip = pGC->pCompositeClip;
+ rrops = priv->rrops;
+ rropsOS = priv->rropOS;
+
+ prect = prectInit;
+ xorg = pDrawable->x;
+ yorg = pDrawable->y;
+ if (xorg || yorg) {
+ prect = prectInit;
+ n = nrectFill;
+ Duff(n, prect->x += xorg; prect->y += yorg; prect++);
+ }
+
+ prect = prectInit;
+
+ numRects = REGION_NUM_RECTS(prgnClip) * nrectFill;
+ if (numRects > NUM_STACK_RECTS) {
+ pboxClippedBase = (BoxPtr)ALLOCATE_LOCAL(numRects * sizeof(BoxRec));
+ if (!pboxClippedBase)
+ return;
+ }
+ else
+ pboxClippedBase = stackRects;
+
+ pboxClipped = pboxClippedBase;
+
+ if (REGION_NUM_RECTS(prgnClip) == 1) {
+ int x1, y1, x2, y2, bx2, by2;
+
+ pextent = REGION_RECTS(prgnClip);
+ x1 = pextent->x1;
+ y1 = pextent->y1;
+ x2 = pextent->x2;
+ y2 = pextent->y2;
+ while (nrectFill--) {
+ if ((pboxClipped->x1 = prect->x) < x1)
+ pboxClipped->x1 = x1;
+
+ if ((pboxClipped->y1 = prect->y) < y1)
+ pboxClipped->y1 = y1;
+
+ bx2 = (int) prect->x + (int) prect->width;
+ if (bx2 > x2)
+ bx2 = x2;
+ pboxClipped->x2 = bx2;
+
+ by2 = (int) prect->y + (int) prect->height;
+ if (by2 > y2)
+ by2 = y2;
+ pboxClipped->y2 = by2;
+
+ prect++;
+ if ((pboxClipped->x1 < pboxClipped->x2) &&
+ (pboxClipped->y1 < pboxClipped->y2)) {
+ pboxClipped++;
+ }
+ }
+ } else {
+ int x1, y1, x2, y2, bx2, by2;
+
+ pextent = REGION_EXTENTS(pGC->pScreen, prgnClip);
+ x1 = pextent->x1;
+ y1 = pextent->y1;
+ x2 = pextent->x2;
+ y2 = pextent->y2;
+ while (nrectFill--) {
+ BoxRec box;
+
+ if ((box.x1 = prect->x) < x1)
+ box.x1 = x1;
+
+ if ((box.y1 = prect->y) < y1)
+ box.y1 = y1;
+
+ bx2 = (int) prect->x + (int) prect->width;
+ if (bx2 > x2)
+ bx2 = x2;
+ box.x2 = bx2;
+
+ by2 = (int) prect->y + (int) prect->height;
+ if (by2 > y2)
+ by2 = y2;
+ box.y2 = by2;
+
+ prect++;
+
+ if ((box.x1 >= box.x2) || (box.y1 >= box.y2))
+ continue;
+
+ n = REGION_NUM_RECTS (prgnClip);
+ pbox = REGION_RECTS(prgnClip);
+
+ /* clip the rectangle to each box in the clip region
+ this is logically equivalent to calling Intersect()
+ */
+ while(n--) {
+ pboxClipped->x1 = max(box.x1, pbox->x1);
+ pboxClipped->y1 = max(box.y1, pbox->y1);
+ pboxClipped->x2 = min(box.x2, pbox->x2);
+ pboxClipped->y2 = min(box.y2, pbox->y2);
+ pbox++;
+
+ /* see if clipping left anything */
+ if(pboxClipped->x1 < pboxClipped->x2 &&
+ pboxClipped->y1 < pboxClipped->y2) {
+ pboxClipped++;
+ }
+ }
+ }
+ }
+ if (pboxClipped != pboxClippedBase) {
+ switch (pGC->fillStyle) {
+ case FillSolid:
+ afbSolidFillArea(pDrawable, pboxClipped-pboxClippedBase,
+ pboxClippedBase, rrops);
+ break;
+ case FillTiled:
+ switch (pGC->alu) {
+ case GXcopy:
+ if (pGC->pRotatedPixmap)
+ afbTileAreaPPWCopy(pDrawable, pboxClipped-pboxClippedBase,
+ pboxClippedBase, GXcopy,
+ pGC->pRotatedPixmap, pGC->planemask);
+ else
+ afbTileAreaCopy (pDrawable, pboxClipped-pboxClippedBase,
+ pboxClippedBase, GXcopy,
+ pGC->tile.pixmap,
+ pGC->patOrg.x, pGC->patOrg.y,
+ pGC->planemask);
+ break;
+
+ default:
+ if (pGC->pRotatedPixmap)
+ afbTileAreaPPWGeneral(pDrawable, pboxClipped-pboxClippedBase,
+ pboxClippedBase, pGC->alu,
+ pGC->pRotatedPixmap,
+ pGC->planemask);
+ else
+ afbTileAreaGeneral(pDrawable, pboxClipped-pboxClippedBase,
+ pboxClippedBase, pGC->alu,
+ pGC->tile.pixmap,
+ pGC->patOrg.x, pGC->patOrg.y,
+ pGC->planemask);
+ break;
+ } /* switch (alu) */
+ break;
+
+ case FillStippled:
+ if (pGC->pRotatedPixmap)
+ afbStippleAreaPPW(pDrawable, pboxClipped-pboxClippedBase,
+ pboxClippedBase, pGC->pRotatedPixmap, rrops);
+ else
+ afbStippleArea(pDrawable, pboxClipped-pboxClippedBase,
+ pboxClippedBase, pGC->stipple,
+ pGC->patOrg.x, pGC->patOrg.y, rrops);
+ break;
+
+ case FillOpaqueStippled:
+ switch (pGC->alu) {
+ case GXcopy:
+ if (pGC->pRotatedPixmap)
+ afbOpaqueStippleAreaPPWCopy(pDrawable, pboxClipped-pboxClippedBase,
+ pboxClippedBase, GXcopy,
+ pGC->pRotatedPixmap,
+ rropsOS, pGC->planemask);
+ else
+ afbOpaqueStippleAreaCopy(pDrawable, pboxClipped-pboxClippedBase,
+ pboxClippedBase, GXcopy,
+ pGC->stipple,
+ pGC->patOrg.x, pGC->patOrg.y, rropsOS,
+ pGC->planemask);
+ break;
+
+ default:
+ if (pGC->pRotatedPixmap)
+ afbOpaqueStippleAreaPPWGeneral(pDrawable, pboxClipped-pboxClippedBase,
+ pboxClippedBase, pGC->alu,
+ pGC->pRotatedPixmap,
+ rropsOS,
+ pGC->planemask);
+ else
+ afbOpaqueStippleAreaGeneral(pDrawable, pboxClipped-pboxClippedBase,
+ pboxClippedBase, pGC->alu,
+ pGC->stipple,
+ pGC->patOrg.x, pGC->patOrg.y,
+ rropsOS,
+ pGC->planemask);
+ break;
+ } /* switch (alu) */
+ break;
+ }
+ }
+ if (pboxClippedBase != stackRects)
+ DEALLOCATE_LOCAL(pboxClippedBase);
+}
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