1/*
2 * Copyright (c) 1993-1997, Silicon Graphics, Inc.
3 * ALL RIGHTS RESERVED
4 * Permission to use, copy, modify, and distribute this software for
5 * any purpose and without fee is hereby granted, provided that the above
6 * copyright notice appear in all copies and that both the copyright notice
7 * and this permission notice appear in supporting documentation, and that
8 * the name of Silicon Graphics, Inc. not be used in advertising
9 * or publicity pertaining to distribution of the software without specific,
10 * written prior permission.
11 *
12 * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
13 * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
14 * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
15 * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
16 * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
17 * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
18 * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
19 * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
20 * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
21 * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
22 * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
23 * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
24 *
25 * US Government Users Restricted Rights
26 * Use, duplication, or disclosure by the Government is subject to
27 * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
28 * (c)(1)(ii) of the Rights in Technical Data and Computer Software
29 * clause at DFARS 252.227-7013 and/or in similar or successor
30 * clauses in the FAR or the DOD or NASA FAR Supplement.
31 * Unpublished-- rights reserved under the copyright laws of the
32 * United States.  Contractor/manufacturer is Silicon Graphics,
33 * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
34 *
35 * OpenGL(R) is a registered trademark of Silicon Graphics, Inc.
36 */
37
38/*
39 *  lines.c
40 *  This program demonstrates geometric primitives and
41 *  their attributes.
42 */
43#include "glut_wrap.h"
44#include <stdlib.h>
45
46#define drawOneLine(x1,y1,x2,y2)  glBegin(GL_LINES);  \
47   glVertex2f ((x1),(y1)); glVertex2f ((x2),(y2)); glEnd();
48
49static void init(void)
50{
51   glClearColor (0.0, 0.0, 0.0, 0.0);
52   glShadeModel (GL_FLAT);
53}
54
55static void display(void)
56{
57   int i;
58
59   glClear (GL_COLOR_BUFFER_BIT);
60
61/* select white for all lines  */
62   glColor3f (1.0, 1.0, 1.0);
63
64/* in 1st row, 3 lines, each with a different stipple  */
65   glEnable (GL_LINE_STIPPLE);
66
67   glLineStipple (1, 0x0101);  /*  dotted  */
68   drawOneLine (50.0, 125.0, 150.0, 125.0);
69   glLineStipple (1, 0x00FF);  /*  dashed  */
70   drawOneLine (150.0, 125.0, 250.0, 125.0);
71   glLineStipple (1, 0x1C47);  /*  dash/dot/dash  */
72   drawOneLine (250.0, 125.0, 350.0, 125.0);
73
74/* in 2nd row, 3 wide lines, each with different stipple */
75   glLineWidth (5.0);
76   glLineStipple (1, 0x0101);  /*  dotted  */
77   drawOneLine (50.0, 100.0, 150.0, 100.0);
78   glLineStipple (1, 0x00FF);  /*  dashed  */
79   drawOneLine (150.0, 100.0, 250.0, 100.0);
80   glLineStipple (1, 0x1C47);  /*  dash/dot/dash  */
81   drawOneLine (250.0, 100.0, 350.0, 100.0);
82   glLineWidth (1.0);
83
84/* in 3rd row, 6 lines, with dash/dot/dash stipple  */
85/* as part of a single connected line strip         */
86   glLineStipple (1, 0x1C47);  /*  dash/dot/dash  */
87   glBegin (GL_LINE_STRIP);
88   for (i = 0; i < 7; i++)
89      glVertex2f (50.0 + ((GLfloat) i * 50.0), 75.0);
90   glEnd ();
91
92/* in 4th row, 6 independent lines with same stipple  */
93   for (i = 0; i < 6; i++) {
94      drawOneLine (50.0 + ((GLfloat) i * 50.0), 50.0,
95         50.0 + ((GLfloat)(i+1) * 50.0), 50.0);
96   }
97
98/* in 5th row, 1 line, with dash/dot/dash stipple    */
99/* and a stipple repeat factor of 5                  */
100   glLineStipple (5, 0x1C47);  /*  dash/dot/dash  */
101   drawOneLine (50.0, 25.0, 350.0, 25.0);
102
103   glDisable (GL_LINE_STIPPLE);
104   glFlush ();
105}
106
107static void reshape (int w, int h)
108{
109   glViewport (0, 0, (GLsizei) w, (GLsizei) h);
110   glMatrixMode (GL_PROJECTION);
111   glLoadIdentity ();
112   gluOrtho2D (0.0, (GLdouble) w, 0.0, (GLdouble) h);
113}
114
115/* ARGSUSED1 */
116static void keyboard(unsigned char key, int x, int y)
117{
118   switch (key) {
119      case 27:
120         exit(0);
121         break;
122   }
123}
124
125int main(int argc, char** argv)
126{
127   glutInit(&argc, argv);
128   glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
129   glutInitWindowSize (400, 150);
130   glutInitWindowPosition (100, 100);
131   glutCreateWindow (argv[0]);
132   init ();
133   glutDisplayFunc(display);
134   glutReshapeFunc(reshape);
135   glutKeyboardFunc(keyboard);
136   glutMainLoop();
137   return 0;
138}
139