1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23*0Sstevel@tonic-gate /* All Rights Reserved */ 24*0Sstevel@tonic-gate 25*0Sstevel@tonic-gate 26*0Sstevel@tonic-gate /* 27*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 28*0Sstevel@tonic-gate * Use is subject to license terms. 29*0Sstevel@tonic-gate */ 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.2 */ 32*0Sstevel@tonic-gate /*LINTLIBRARY*/ 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #include <stdlib.h> 35*0Sstevel@tonic-gate #include <math.h> 36*0Sstevel@tonic-gate #include "con.h" 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate int ynow = 0; 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate static void 41*0Sstevel@tonic-gate iline(int cx0, int cy0, int cx1, int cy1) { 42*0Sstevel@tonic-gate int maxp, tt; 43*0Sstevel@tonic-gate char chx, chy, command; 44*0Sstevel@tonic-gate float xd, yd; 45*0Sstevel@tonic-gate movep(cx0, cy0); 46*0Sstevel@tonic-gate maxp = (int)(sqrt(dist2(cx0, cy0, cx1, cy1)) / 2.); 47*0Sstevel@tonic-gate xd = cx1 - cx0; 48*0Sstevel@tonic-gate yd = cy1 - cy0; 49*0Sstevel@tonic-gate command = COM|((xd < 0) << 1)|(yd < 0); 50*0Sstevel@tonic-gate if (maxp == 0) { 51*0Sstevel@tonic-gate xd = 0; 52*0Sstevel@tonic-gate yd = 0; 53*0Sstevel@tonic-gate } else { 54*0Sstevel@tonic-gate xd /= maxp; 55*0Sstevel@tonic-gate yd /= maxp; 56*0Sstevel@tonic-gate } 57*0Sstevel@tonic-gate inplot(); 58*0Sstevel@tonic-gate spew(command); 59*0Sstevel@tonic-gate for (tt = 0; tt <= maxp; tt++) { 60*0Sstevel@tonic-gate chx = (char)(cx0 + xd * tt - xnow); 61*0Sstevel@tonic-gate xnow += chx; 62*0Sstevel@tonic-gate chx = abs(chx); 63*0Sstevel@tonic-gate chy = (char)(cy0 + yd * tt - ynow); 64*0Sstevel@tonic-gate ynow += chy; 65*0Sstevel@tonic-gate chy = abs(chy); 66*0Sstevel@tonic-gate spew(ADDR|chx<<3|chy); 67*0Sstevel@tonic-gate } 68*0Sstevel@tonic-gate outplot(); 69*0Sstevel@tonic-gate } 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate void 72*0Sstevel@tonic-gate line(short x0, short y0, short x1, short y1) { 73*0Sstevel@tonic-gate iline(xconv(xsc(x0)), yconv(ysc(y0)), xconv(xsc(x1)), yconv(ysc(y1))); 74*0Sstevel@tonic-gate } 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate void 77*0Sstevel@tonic-gate cont(short x0, short y0) { 78*0Sstevel@tonic-gate iline(xnow, ynow, xconv(xsc(x0)), yconv(ysc(y0))); 79*0Sstevel@tonic-gate } 80