291 lines
8.4 KiB
C
291 lines
8.4 KiB
C
/* $XFree86: xc/programs/Xserver/afb/afbfillrct.c,v 3.2tsi Exp $ */
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/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
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/***********************************************************
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Copyright (c) 1987 X Consortium
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of the X Consortium shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from the X Consortium.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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/* $XConsortium: afbfillrct.c,v 5.10 94/04/17 20:28:21 dpw Exp $ */
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#include "X.h"
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#include "Xprotostr.h"
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#include "pixmapstr.h"
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#include "gcstruct.h"
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#include "windowstr.h"
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#include "regionstr.h"
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#include "scrnintstr.h"
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#include "afb.h"
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#include "maskbits.h"
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#define MODEQ(a, b) ((a) %= (b))
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void afbPaintOddSize();
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/*
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filled rectangles.
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translate the rectangles, clip them, and call the
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helper function in the GC.
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*/
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#define NUM_STACK_RECTS 1024
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void
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afbPolyFillRect(pDrawable, pGC, nrectFill, prectInit)
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DrawablePtr pDrawable;
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GCPtr pGC;
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int nrectFill; /* number of rectangles to fill */
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xRectangle *prectInit; /* Pointer to first rectangle to fill */
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{
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xRectangle *prect;
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RegionPtr prgnClip;
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register BoxPtr pbox;
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register BoxPtr pboxClipped;
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BoxPtr pboxClippedBase;
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BoxPtr pextent;
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BoxRec stackRects[NUM_STACK_RECTS];
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int numRects;
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int n;
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int xorg, yorg;
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afbPrivGC *priv;
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unsigned char *rrops;
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unsigned char *rropsOS;
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priv = (afbPrivGC *)pGC->devPrivates[afbGCPrivateIndex].ptr;
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prgnClip = pGC->pCompositeClip;
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rrops = priv->rrops;
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rropsOS = priv->rropOS;
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prect = prectInit;
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xorg = pDrawable->x;
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yorg = pDrawable->y;
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if (xorg || yorg) {
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prect = prectInit;
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n = nrectFill;
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Duff(n, prect->x += xorg; prect->y += yorg; prect++);
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}
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prect = prectInit;
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numRects = REGION_NUM_RECTS(prgnClip) * nrectFill;
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if (numRects > NUM_STACK_RECTS) {
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pboxClippedBase = (BoxPtr)ALLOCATE_LOCAL(numRects * sizeof(BoxRec));
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if (!pboxClippedBase)
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return;
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}
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else
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pboxClippedBase = stackRects;
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pboxClipped = pboxClippedBase;
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if (REGION_NUM_RECTS(prgnClip) == 1) {
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int x1, y1, x2, y2, bx2, by2;
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pextent = REGION_RECTS(prgnClip);
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x1 = pextent->x1;
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y1 = pextent->y1;
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x2 = pextent->x2;
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y2 = pextent->y2;
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while (nrectFill--) {
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if ((pboxClipped->x1 = prect->x) < x1)
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pboxClipped->x1 = x1;
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if ((pboxClipped->y1 = prect->y) < y1)
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pboxClipped->y1 = y1;
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bx2 = (int) prect->x + (int) prect->width;
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if (bx2 > x2)
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bx2 = x2;
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pboxClipped->x2 = bx2;
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by2 = (int) prect->y + (int) prect->height;
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if (by2 > y2)
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by2 = y2;
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pboxClipped->y2 = by2;
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prect++;
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if ((pboxClipped->x1 < pboxClipped->x2) &&
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(pboxClipped->y1 < pboxClipped->y2)) {
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pboxClipped++;
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}
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}
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} else {
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int x1, y1, x2, y2, bx2, by2;
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pextent = REGION_EXTENTS(pGC->pScreen, prgnClip);
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x1 = pextent->x1;
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y1 = pextent->y1;
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x2 = pextent->x2;
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y2 = pextent->y2;
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while (nrectFill--) {
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BoxRec box;
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if ((box.x1 = prect->x) < x1)
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box.x1 = x1;
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if ((box.y1 = prect->y) < y1)
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box.y1 = y1;
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bx2 = (int) prect->x + (int) prect->width;
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if (bx2 > x2)
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bx2 = x2;
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box.x2 = bx2;
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by2 = (int) prect->y + (int) prect->height;
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if (by2 > y2)
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by2 = y2;
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box.y2 = by2;
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prect++;
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if ((box.x1 >= box.x2) || (box.y1 >= box.y2))
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continue;
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n = REGION_NUM_RECTS (prgnClip);
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pbox = REGION_RECTS(prgnClip);
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/* clip the rectangle to each box in the clip region
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this is logically equivalent to calling Intersect()
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*/
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while(n--) {
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pboxClipped->x1 = max(box.x1, pbox->x1);
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pboxClipped->y1 = max(box.y1, pbox->y1);
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pboxClipped->x2 = min(box.x2, pbox->x2);
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pboxClipped->y2 = min(box.y2, pbox->y2);
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pbox++;
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/* see if clipping left anything */
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if(pboxClipped->x1 < pboxClipped->x2 &&
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pboxClipped->y1 < pboxClipped->y2) {
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pboxClipped++;
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}
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}
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}
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}
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if (pboxClipped != pboxClippedBase) {
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switch (pGC->fillStyle) {
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case FillSolid:
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afbSolidFillArea(pDrawable, pboxClipped-pboxClippedBase,
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pboxClippedBase, rrops);
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break;
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case FillTiled:
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switch (pGC->alu) {
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case GXcopy:
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if (pGC->pRotatedPixmap)
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afbTileAreaPPWCopy(pDrawable, pboxClipped-pboxClippedBase,
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pboxClippedBase, GXcopy,
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pGC->pRotatedPixmap, pGC->planemask);
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else
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afbTileAreaCopy (pDrawable, pboxClipped-pboxClippedBase,
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pboxClippedBase, GXcopy,
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pGC->tile.pixmap,
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pGC->patOrg.x, pGC->patOrg.y,
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pGC->planemask);
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break;
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default:
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if (pGC->pRotatedPixmap)
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afbTileAreaPPWGeneral(pDrawable, pboxClipped-pboxClippedBase,
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pboxClippedBase, pGC->alu,
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pGC->pRotatedPixmap,
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pGC->planemask);
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else
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afbTileAreaGeneral(pDrawable, pboxClipped-pboxClippedBase,
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pboxClippedBase, pGC->alu,
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pGC->tile.pixmap,
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pGC->patOrg.x, pGC->patOrg.y,
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pGC->planemask);
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break;
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} /* switch (alu) */
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break;
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case FillStippled:
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if (pGC->pRotatedPixmap)
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afbStippleAreaPPW(pDrawable, pboxClipped-pboxClippedBase,
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pboxClippedBase, pGC->pRotatedPixmap, rrops);
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else
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afbStippleArea(pDrawable, pboxClipped-pboxClippedBase,
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pboxClippedBase, pGC->stipple,
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pGC->patOrg.x, pGC->patOrg.y, rrops);
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break;
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case FillOpaqueStippled:
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switch (pGC->alu) {
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case GXcopy:
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if (pGC->pRotatedPixmap)
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afbOpaqueStippleAreaPPWCopy(pDrawable, pboxClipped-pboxClippedBase,
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pboxClippedBase, GXcopy,
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pGC->pRotatedPixmap,
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rropsOS, pGC->planemask);
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else
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afbOpaqueStippleAreaCopy(pDrawable, pboxClipped-pboxClippedBase,
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pboxClippedBase, GXcopy,
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pGC->stipple,
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pGC->patOrg.x, pGC->patOrg.y, rropsOS,
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pGC->planemask);
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break;
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default:
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if (pGC->pRotatedPixmap)
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afbOpaqueStippleAreaPPWGeneral(pDrawable, pboxClipped-pboxClippedBase,
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pboxClippedBase, pGC->alu,
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pGC->pRotatedPixmap,
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rropsOS,
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pGC->planemask);
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else
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afbOpaqueStippleAreaGeneral(pDrawable, pboxClipped-pboxClippedBase,
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pboxClippedBase, pGC->alu,
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pGC->stipple,
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pGC->patOrg.x, pGC->patOrg.y,
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rropsOS,
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pGC->planemask);
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break;
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} /* switch (alu) */
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break;
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}
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}
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if (pboxClippedBase != stackRects)
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DEALLOCATE_LOCAL(pboxClippedBase);
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}
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