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-rw-r--r--progs/redbook/hello.c110
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diff --git a/progs/redbook/hello.c b/progs/redbook/hello.c
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--- a/progs/redbook/hello.c
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-/*
- * Copyright (c) 1993-1997, Silicon Graphics, Inc.
- * ALL RIGHTS RESERVED
- * Permission to use, copy, modify, and distribute this software for
- * any purpose and without fee is hereby granted, provided that the above
- * copyright notice appear in all copies and that both the copyright notice
- * and this permission notice appear in supporting documentation, and that
- * the name of Silicon Graphics, Inc. not be used in advertising
- * or publicity pertaining to distribution of the software without specific,
- * written prior permission.
- *
- * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
- * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
- * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
- * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
- * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
- * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
- * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
- * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
- * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
- * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * US Government Users Restricted Rights
- * Use, duplication, or disclosure by the Government is subject to
- * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
- * (c)(1)(ii) of the Rights in Technical Data and Computer Software
- * clause at DFARS 252.227-7013 and/or in similar or successor
- * clauses in the FAR or the DOD or NASA FAR Supplement.
- * Unpublished-- rights reserved under the copyright laws of the
- * United States. Contractor/manufacturer is Silicon Graphics,
- * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
- *
- * OpenGL(R) is a registered trademark of Silicon Graphics, Inc.
- */
-
-/*
- * hello.c
- * This is a simple, introductory OpenGL program.
- */
-#include <stdlib.h>
-#include <GL/glut.h>
-
-static void display(void)
-{
-/* clear all pixels */
- glClear (GL_COLOR_BUFFER_BIT);
-
-/* draw white polygon (rectangle) with corners at
- * (0.25, 0.25, 0.0) and (0.75, 0.75, 0.0)
- */
- glColor3f (1.0, 1.0, 1.0);
- glBegin(GL_POLYGON);
- glVertex3f (0.25, 0.25, 0.0);
- glVertex3f (0.75, 0.25, 0.0);
- glVertex3f (0.75, 0.75, 0.0);
- glVertex3f (0.25, 0.75, 0.0);
- glEnd();
-
-/* don't wait!
- * start processing buffered OpenGL routines
- */
- glFlush ();
-}
-
-static void init (void)
-{
-/* select clearing color */
- glClearColor (0.0, 0.0, 0.0, 0.0);
-
-/* initialize viewing values */
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
-}
-
-static void
-key(unsigned char k, int x, int y)
-{
- switch (k) {
- case 27: /* Escape */
- exit(0);
- break;
- default:
- return;
- }
- glutPostRedisplay();
-}
-
-/*
- * Declare initial window size, position, and display mode
- * (single buffer and RGBA). Open window with "hello"
- * in its title bar. Call initialization routines.
- * Register callback function to display graphics.
- * Enter main loop and process events.
- */
-int main(int argc, char** argv)
-{
- glutInit(&argc, argv);
- glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
- glutInitWindowSize (250, 250);
- glutInitWindowPosition (100, 100);
- glutCreateWindow ("hello");
- init ();
- glutDisplayFunc(display);
- glutKeyboardFunc(key);
- glutMainLoop();
- return 0; /* ANSI C requires main to return int. */
-}