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/*
* Acceleration for the Creator and Creator3D framebuffer - Point rops.
*
* Copyright (C) 1999 Jakub Jelinek (jakub@redhat.com)
* Copyright (C) 1999 David S. Miller (davem@redhat.com)
*
* 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
* JAKUB JELINEK OR DAVID MILLER 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.
*
*/
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/sunffb/ffb_point.c,v 1.1 2000/05/18 23:21:37 dawes Exp $ */
#include "ffb.h"
#include "ffb_regs.h"
#include "ffb_rcache.h"
#include "ffb_fifo.h"
#include "ffb_loops.h"
#include "pixmapstr.h"
#include "scrnintstr.h"
#define PSZ 8
#include "cfb.h"
#undef PSZ
#include "cfb32.h"
void
CreatorPolyPoint(DrawablePtr pDrawable, GCPtr pGC, int mode,
int npt, xPoint *pptInit)
{
FFBPtr pFfb = GET_FFB_FROM_SCREEN (pGC->pScreen);
WindowPtr pWin = (WindowPtr) pDrawable;
ffb_fbcPtr ffb = pFfb->regs;
RegionPtr clip;
int numRects;
register int off, c1, c2;
register char *addrp;
register int *ppt, pt, i;
BoxPtr pbox;
xPoint *pptPrev;
FFBLOG(("CreatorPolyPoint: ALU(%x) PMSK(%08x) mode(%d) npt(%d)\n",
pGC->alu, pGC->planemask, mode, npt));
if (pGC->alu == GXnoop)
return;
clip = cfbGetCompositeClip(pGC);
numRects = REGION_NUM_RECTS(clip);
off = *(int *)&pDrawable->x;
off -= (off & 0x8000) << 1;
if (mode == CoordModePrevious && npt > 1) {
for (pptPrev = pptInit + 1, i = npt - 1; --i >= 0; pptPrev++) {
pptPrev->x += pptPrev[-1].x;
pptPrev->y += pptPrev[-1].y;
}
}
FFB_ATTR_GC(pFfb, pGC, pWin,
FFB_PPC_APE_DISABLE | FFB_PPC_CS_CONST,
pFfb->drawop_cache);
FFBWait(pFfb, ffb);
if (pGC->depth == 8) {
addrp = (char *)pFfb->sfb8r + (pDrawable->y << 11) + (pDrawable->x << 0);
pbox = REGION_RECTS(clip);
while (numRects--) {
c1 = *(int *)&pbox->x1 - off;
c2 = *(int *)&pbox->x2 - off - 0x00010001;
for (ppt = (int *)pptInit, i = npt; --i >= 0; ) {
pt = *ppt++;
if (!(((pt - c1) | (c2 - pt)) & 0x80008000))
*(unsigned char *)(addrp + ((pt << 11) & 0x3ff800) +
((pt >> 16) & 0x07ff)) = 0;
}
pbox++;
}
} else {
addrp = (char *)pFfb->sfb32 + (pDrawable->y << 13) + (pDrawable->x << 2);
pbox = REGION_RECTS(clip);
while (numRects--) {
c1 = *(int *)&pbox->x1 - off;
c2 = *(int *)&pbox->x2 - off - 0x00010001;
for (ppt = (int *)pptInit, i = npt; --i >= 0; ) {
pt = *ppt++;
if (!(((pt - c1) | (c2 - pt)) & 0x80008000))
*(unsigned int *)(addrp + ((pt << 13) & 0xffe000) +
((pt >> 14) & 0x1ffc)) = 0;
}
pbox++;
}
}
}
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