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/*
* (c) Copyright 1993, 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* Unpublished-- rights reserved under the copyright laws of the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(TM) is a trademark of Silicon Graphics, Inc.
*/
/*
* double.c
* This program demonstrates double buffering for
* flicker-free animation. The left and middle mouse
* buttons start and stop the spinning motion of the square.
*/
#include <GL/gl.h>
#include <GL/glu.h>
/*#include <GL/glx.h>*/
#include <stdlib.h>
#include "glaux.h"
static GLfloat spin = 0.0;
void display(void)
{
glClear (GL_COLOR_BUFFER_BIT);
glPushMatrix ();
glRotatef (spin, 0.0, 0.0, 1.0);
glRectf (-25.0, -25.0, 25.0, 25.0);
glPopMatrix ();
glFlush();
/* glXSwapBuffers (auxXDisplay(), auxXWindow());*/
auxSwapBuffers();
}
void spinDisplay (void)
{
spin = spin + 2.0;
if (spin > 360.0)
spin = spin - 360.0;
display();
}
void startIdleFunc (AUX_EVENTREC *event)
{
auxIdleFunc(spinDisplay);
}
void stopIdleFunc (AUX_EVENTREC *event)
{
auxIdleFunc(0);
}
void myinit (void)
{
glClearColor (0.0, 0.0, 0.0, 1.0);
glColor3f (1.0, 1.0, 1.0);
glShadeModel (GL_FLAT);
}
void myReshape(int w, int h)
{
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if (w <= h)
glOrtho (-50.0, 50.0, -50.0*(GLfloat)h/(GLfloat)w,
50.0*(GLfloat)h/(GLfloat)w, -1.0, 1.0);
else
glOrtho (-50.0*(GLfloat)w/(GLfloat)h,
50.0*(GLfloat)w/(GLfloat)h, -50.0, 50.0, -1.0, 1.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity ();
}
/* Main Loop
* Open window with initial window size, title bar,
* RGBA display mode, and handle input events.
*/
int main(int argc, char** argv)
{
auxInitDisplayMode (AUX_DOUBLE | AUX_RGB);
auxInitPosition (0, 0, 500, 500);
auxInitWindow (argv[0]);
myinit ();
myReshape( 500, 500 ); /* Added by Brian */
auxReshapeFunc (myReshape);
auxIdleFunc (spinDisplay);
auxMouseFunc (AUX_LEFTBUTTON, AUX_MOUSEDOWN, startIdleFunc);
auxMouseFunc (AUX_MIDDLEBUTTON, AUX_MOUSEDOWN, stopIdleFunc);
auxMainLoop(display);
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.