mvarray.c revision 32001f49 
1/*
2 * Copyright (c) 1993-2003, Silicon Graphics, Inc.
3 * All Rights Reserved
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose and without fee is hereby granted, provided that the above
7 * copyright notice appear in all copies and that both the copyright
8 * notice and this permission notice appear in supporting documentation,
9 * and that the name of Silicon Graphics, Inc. not be used in
10 * advertising or publicity pertaining to distribution of the software
11 * without specific, written prior permission.
12 *
13 * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" AND
14 * WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
16 * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
17 * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
18 * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
19 * OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, LOSS OF
20 * PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF THIRD
21 * PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN ADVISED OF
22 * THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON ANY THEORY OF
23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE POSSESSION, USE
24 * OR PERFORMANCE OF THIS SOFTWARE.
25 *
26 * US Government Users Restricted Rights
27 * Use, duplication, or disclosure by the Government is subject to
28 * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
29 * (c)(1)(ii) of the Rights in Technical Data and Computer Software
30 * clause at DFARS 252.227-7013 and/or in similar or successor clauses
31 * in the FAR or the DOD or NASA FAR Supplement.  Unpublished - rights
32 * reserved under the copyright laws of the United States.
33 *
34 * Contractor/manufacturer is:
35 *	Silicon Graphics, Inc.
36 *	1500 Crittenden Lane
37 *	Mountain View, CA  94043
38 *	United State of America
39 *
40 * OpenGL(R) is a registered trademark of Silicon Graphics, Inc.
41 */
42
43/*
44 *  mvarray.c
45 *  This program demonstrates multiple vertex arrays,
46 *  specifically the OpenGL routine glMultiDrawElements().
47 */
48
49#include <GL/glew.h>
50#include "glut_wrap.h"
51#include <stdlib.h>
52#include <stdio.h>
53
54#ifdef GL_VERSION_1_3
55
56static void setupPointer(void)
57{
58   static GLint vertices[] = {25, 25,
59                       75, 75,
60                       100, 125,
61                       150, 75,
62                       200, 175,
63                       250, 150,
64                       300, 125,
65                       100, 200,
66                       150, 250,
67                       200, 225,
68                       250, 300,
69                       300, 250};
70
71   glEnableClientState (GL_VERTEX_ARRAY);
72   glVertexPointer (2, GL_INT, 0, vertices);
73}
74
75static void init(void)
76{
77   glClearColor (0.0, 0.0, 0.0, 0.0);
78   glShadeModel (GL_SMOOTH);
79   setupPointer ();
80}
81
82static void display(void)
83{
84   static GLubyte oneIndices[] = {0, 1, 2, 3, 4, 5, 6};
85   static GLubyte twoIndices[] = {1, 7, 8, 9, 10, 11};
86   static GLsizei count[] = {7, 6};
87   static GLvoid * indices[2] = {oneIndices, twoIndices};
88
89   glClear (GL_COLOR_BUFFER_BIT);
90   glColor3f (1.0, 1.0, 1.0);
91   glMultiDrawElementsEXT (GL_LINE_STRIP, count, GL_UNSIGNED_BYTE,
92                           (const GLvoid **) indices, 2);
93   glFlush ();
94}
95
96static void reshape (int w, int h)
97{
98   glViewport (0, 0, (GLsizei) w, (GLsizei) h);
99   glMatrixMode (GL_PROJECTION);
100   glLoadIdentity ();
101   gluOrtho2D (0.0, (GLdouble) w, 0.0, (GLdouble) h);
102}
103
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 (350, 350);
118   glutInitWindowPosition (100, 100);
119   glutCreateWindow (argv[0]);
120   glewInit();
121   init ();
122   glutDisplayFunc(display);
123   glutReshapeFunc(reshape);
124   glutKeyboardFunc (keyboard);
125   glutMainLoop();
126   return 0;
127}
128#else
129int main(int argc, char** argv)
130{
131    fprintf (stderr, "This program demonstrates a feature which is not in OpenGL Version 1.0.\n");
132    fprintf (stderr, "If your implementation of OpenGL Version 1.0 has the right extensions,\n");
133    fprintf (stderr, "you may be able to modify this program to make it run.\n");
134    return 0;
135}
136#endif
137