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31 * Unpublished-- rights reserved under the copyright laws of the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 *  model.c
40 *  This program demonstrates modeling transformations
41 */
42#include "glut_wrap.h"
43#include <stdlib.h>
44
45static void init(void)
46{
47   glClearColor (0.0, 0.0, 0.0, 0.0);
48   glShadeModel (GL_FLAT);
49}
50
51static void draw_triangle(void)
52{
53   glBegin (GL_LINE_LOOP);
54   glVertex2f(0.0, 25.0);
55   glVertex2f(25.0, -25.0);
56   glVertex2f(-25.0, -25.0);
57   glEnd();
58}
59
60static void display(void)
61{
62   glClear (GL_COLOR_BUFFER_BIT);
63   glColor3f (1.0, 1.0, 1.0);
64
65   glLoadIdentity ();
66   glColor3f (1.0, 1.0, 1.0);
67   draw_triangle ();
68
69   glEnable (GL_LINE_STIPPLE);
70   glLineStipple (1, 0xF0F0);
71   glLoadIdentity ();
72   glTranslatef (-20.0, 0.0, 0.0);
73   draw_triangle ();
74
75   glLineStipple (1, 0xF00F);
76   glLoadIdentity ();
77   glScalef (1.5, 0.5, 1.0);
78   draw_triangle ();
79
80   glLineStipple (1, 0x8888);
81   glLoadIdentity ();
82   glRotatef (90.0, 0.0, 0.0, 1.0);
83   draw_triangle ();
84   glDisable (GL_LINE_STIPPLE);
85
86   glFlush ();
87}
88
89static void reshape (int w, int h)
90{
91   glViewport (0, 0, (GLsizei) w, (GLsizei) h);
92   glMatrixMode (GL_PROJECTION);
93   glLoadIdentity ();
94   if (w <= h)
95      glOrtho (-50.0, 50.0, -50.0*(GLfloat)h/(GLfloat)w,
96         50.0*(GLfloat)h/(GLfloat)w, -1.0, 1.0);
97   else
98      glOrtho (-50.0*(GLfloat)w/(GLfloat)h,
99         50.0*(GLfloat)w/(GLfloat)h, -50.0, 50.0, -1.0, 1.0);
100   glMatrixMode(GL_MODELVIEW);
101}
102
103/* ARGSUSED1 */
104static void keyboard(unsigned char key, int x, int y)
105{
106   switch (key) {
107      case 27:
108         exit(0);
109         break;
110   }
111}
112
113int main(int argc, char** argv)
114{
115   glutInit(&argc, argv);
116   glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
117   glutInitWindowSize (500, 500);
118   glutInitWindowPosition (100, 100);
119   glutCreateWindow (argv[0]);
120   init ();
121   glutDisplayFunc(display);
122   glutReshapeFunc(reshape);
123   glutKeyboardFunc (keyboard);
124   glutMainLoop();
125   return 0;
126}
127