137 lines
4.3 KiB
C
137 lines
4.3 KiB
C
/*
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* Copyright (c) 1993-2003, Silicon Graphics, Inc.
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* All Rights Reserved
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose and without fee is hereby granted, provided that the above
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* copyright notice appear in all copies and that both the copyright
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* notice and this permission notice appear in supporting documentation,
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* and that the name of Silicon Graphics, Inc. not be used in
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* advertising or publicity pertaining to distribution of the software
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* without specific, written prior permission.
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*
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* THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" AND
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* WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
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* GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
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* SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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* OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, LOSS OF
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* PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF THIRD
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* PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN ADVISED OF
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* THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE POSSESSION, USE
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* OR PERFORMANCE OF THIS SOFTWARE.
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*
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* US Government Users Restricted Rights
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* Use, duplication, or disclosure by the Government is subject to
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* restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
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* (c)(1)(ii) of the Rights in Technical Data and Computer Software
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* clause at DFARS 252.227-7013 and/or in similar or successor clauses
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* in the FAR or the DOD or NASA FAR Supplement. Unpublished - rights
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* reserved under the copyright laws of the United States.
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*
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* Contractor/manufacturer is:
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* Silicon Graphics, Inc.
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* 1500 Crittenden Lane
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* Mountain View, CA 94043
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* United State of America
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*
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* OpenGL(R) is a registered trademark of Silicon Graphics, Inc.
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*/
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/*
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* mvarray.c
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* This program demonstrates multiple vertex arrays,
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* specifically the OpenGL routine glMultiDrawElements().
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*/
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#include <GL/glew.h>
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#include <GL/glut.h>
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#include <stdlib.h>
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#include <stdio.h>
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#ifdef GL_VERSION_1_3
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static void setupPointer(void)
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{
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static GLint vertices[] = {25, 25,
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75, 75,
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100, 125,
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150, 75,
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200, 175,
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250, 150,
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300, 125,
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100, 200,
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150, 250,
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200, 225,
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250, 300,
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300, 250};
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glEnableClientState (GL_VERTEX_ARRAY);
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glVertexPointer (2, GL_INT, 0, vertices);
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}
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static void init(void)
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{
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glClearColor (0.0, 0.0, 0.0, 0.0);
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glShadeModel (GL_SMOOTH);
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setupPointer ();
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}
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static void display(void)
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{
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static GLubyte oneIndices[] = {0, 1, 2, 3, 4, 5, 6};
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static GLubyte twoIndices[] = {1, 7, 8, 9, 10, 11};
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static GLsizei count[] = {7, 6};
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static GLvoid * indices[2] = {oneIndices, twoIndices};
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glClear (GL_COLOR_BUFFER_BIT);
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glColor3f (1.0, 1.0, 1.0);
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glMultiDrawElementsEXT (GL_LINE_STRIP, count, GL_UNSIGNED_BYTE,
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(const GLvoid **) indices, 2);
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glFlush ();
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}
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static void reshape (int w, int h)
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{
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glViewport (0, 0, (GLsizei) w, (GLsizei) h);
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glMatrixMode (GL_PROJECTION);
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glLoadIdentity ();
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gluOrtho2D (0.0, (GLdouble) w, 0.0, (GLdouble) h);
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}
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static void keyboard(unsigned char key, int x, int y)
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{
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switch (key) {
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case 27:
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exit(0);
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break;
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}
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}
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int main(int argc, char** argv)
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{
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glutInit(&argc, argv);
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glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
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glutInitWindowSize (350, 350);
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glutInitWindowPosition (100, 100);
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glutCreateWindow (argv[0]);
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glewInit();
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init ();
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glutDisplayFunc(display);
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glutReshapeFunc(reshape);
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glutKeyboardFunc (keyboard);
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glutMainLoop();
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return 0;
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}
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#else
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int main(int argc, char** argv)
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{
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fprintf (stderr, "This program demonstrates a feature which is not in OpenGL Version 1.0.\n");
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fprintf (stderr, "If your implementation of OpenGL Version 1.0 has the right extensions,\n");
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fprintf (stderr, "you may be able to modify this program to make it run.\n");
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return 0;
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}
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#endif
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