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101 lines
3.0 KiB
C
101 lines
3.0 KiB
C
/* $NetBSD: pxpolypnt.c,v 1.2 2008/04/28 20:57:37 martin Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "px.h"
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#include "cfb.h"
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void
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pxPolyPoint(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
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xPoint *pptInit)
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{
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pxScreenPrivPtr sp;
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pxPrivGCPtr gcPriv;
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xPoint *ppt, *maxppt;
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u_int32_t *pb;
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pxPacket pxp;
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RegionPtr prgnClip;
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BoxPtr pbox, pmaxbox;
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int psy, xorg, yorg;
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PX_TRACE("pxPolyPoint");
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gcPriv = pxGetGCPrivate(pGC);
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prgnClip = cfbGetCompositeClip(pGC);
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sp = gcPriv->sp;
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xorg = pDrawable->x;
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yorg = pDrawable->y;
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ppt = pptInit;
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if (mode == CoordModePrevious) {
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maxppt = ppt + npt -1;
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while (ppt < maxppt) {
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ppt++;
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ppt->x = ppt->x + (ppt-1)->x + xorg;
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ppt->y = ppt->y + (ppt-1)->y + yorg;
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}
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} else if (xorg != 0 || yorg != 0) {
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maxppt = ppt + npt -1;
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for (; ppt < maxppt; ppt++) {
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ppt->x = ppt->x + xorg;
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ppt->y = ppt->y + yorg;
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}
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}
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pb = pxPacketStart(sp, &pxp, 6, 2);
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pb[0] = STAMP_CMD_LINES | STAMP_RGB_CONST | STAMP_LW_PERPACKET;
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pb[1] = gcPriv->pmask;
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pb[2] = 0;
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pb[3] = gcPriv->umet;
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pb[4] = (1 << 2) - 1;
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pb[5] = gcPriv->fgPixel;
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pbox = REGION_RECTS(prgnClip);
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pmaxbox = pbox + REGION_NUM_RECTS(prgnClip);
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maxppt = pptInit + npt;
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for (; pbox < pmaxbox; pbox++) {
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for (ppt = pptInit; ppt < maxppt; ppt++) {
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if (ppt->x < pbox->x1 || ppt->x >= pbox->x2 ||
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ppt->y < pbox->y1 || ppt->y >= pbox->y2)
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continue;
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pb = pxPacketAddPrim(sp, &pxp);
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psy = (ppt->y << 3) + (1 << 2) - 1;
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pb[0] = (ppt->x << 19) | psy;
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pb[1] = ((ppt->x + 1) << 19) | psy;
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}
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}
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pxPacketFlush(sp, &pxp);
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}
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