218 lines
6.1 KiB
C
218 lines
6.1 KiB
C
/* $XFree86: xc/programs/Xserver/hw/xfree86/xf4bpp/ppcFillRct.c,v 1.5tsi 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: ppcFillRct.c /main/5 1996/02/21 17:57:35 kaleb $ */
|
|
|
|
#ifdef HAVE_XORG_CONFIG_H
|
|
#include <xorg-config.h>
|
|
#endif
|
|
|
|
#include "xf4bpp.h"
|
|
#include "mfbmap.h"
|
|
#include "mfb.h"
|
|
#include "maskbits.h"
|
|
#include "scrnintstr.h"
|
|
|
|
#define MODEQ(a, b) ((a) %= (b))
|
|
|
|
/*
|
|
filled rectangles.
|
|
translate the rectangles, clip them, and call the
|
|
helper function in the GC.
|
|
*/
|
|
|
|
#define NUM_STACK_RECTS 1024
|
|
|
|
void
|
|
xf4bppPolyFillRect(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;
|
|
|
|
if (!(pGC->planemask & 0x0F)) /* GJA */
|
|
return;
|
|
|
|
prgnClip = pGC->pCompositeClip;
|
|
|
|
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)
|
|
xf4bppFillArea((WindowPtr)pDrawable, pboxClipped-pboxClippedBase,
|
|
pboxClippedBase, pGC);
|
|
if (pboxClippedBase != stackRects)
|
|
DEALLOCATE_LOCAL(pboxClippedBase);
|
|
}
|