2 * Copyright (c) 1993-1997, Silicon Graphics, Inc.
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.
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.
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31 * Unpublished-- rights reserved under the copyright laws of the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.
35 * OpenGL(R) is a registered trademark of Silicon Graphics, Inc.
40 * This program demonstrates vertex arrays.
52 # include <GLUT/glut.h>
62 #define ARRAYELEMENT 2
63 #define DRAWELEMENTS 3
65 static int setupMethod = POINTER;
66 static int derefMethod = DRAWARRAY;
70 static void setupPointers(void)
72 static GLint vertices[] = {
80 static GLfloat colors[] = {
89 glEnableClientState(GL_VERTEX_ARRAY);
90 glEnableClientState(GL_COLOR_ARRAY);
92 glVertexPointer(2, GL_INT, 0, vertices);
93 glColorPointer(3, GL_FLOAT, 0, colors);
96 static void setupInterleave(void)
98 static GLfloat intertwined[] = {
99 1.0, 0.2, 1.0, 100.0, 100.0, 0.0,
100 1.0, 0.2, 0.2, 0.0, 200.0, 0.0,
101 1.0, 1.0, 0.2, 100.0, 300.0, 0.0,
102 0.2, 1.0, 0.2, 200.0, 300.0, 0.0,
103 0.2, 1.0, 1.0, 300.0, 200.0, 0.0,
104 0.2, 0.2, 1.0, 200.0, 100.0, 0.0
107 glInterleavedArrays(GL_C3F_V3F, 0, intertwined);
110 static void init(void)
112 glClearColor(0.0, 0.0, 0.0, 0.0);
113 glShadeModel(GL_SMOOTH);
117 static void display(void)
119 glClear(GL_COLOR_BUFFER_BIT);
121 if (derefMethod == DRAWARRAY)
122 glDrawArrays(GL_TRIANGLES, 0, 6);
123 else if (derefMethod == ARRAYELEMENT) {
124 glBegin(GL_TRIANGLES);
130 else if (derefMethod == DRAWELEMENTS) {
131 GLuint indices[4] = {0, 1, 3, 4};
133 glDrawElements(GL_POLYGON, 4, GL_UNSIGNED_INT, indices);
137 glutDestroyWindow(win);
142 static void reshape(int w, int h)
144 glViewport(0, 0, (GLsizei) w, (GLsizei) h);
145 glMatrixMode(GL_PROJECTION);
147 gluOrtho2D(0.0, (GLdouble) w, 0.0, (GLdouble) h);
150 int main(int argc, char** argv)
152 glutInit(&argc, argv);
153 glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
154 glutInitWindowSize(350, 350);
155 glutInitWindowPosition(100, 100);
156 win = glutCreateWindow(argv[0]);
158 glutDisplayFunc(display);
159 glutReshapeFunc(reshape);