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Diffstat (limited to 'progs/redbook/bezcurve.c')
-rw-r--r-- | progs/redbook/bezcurve.c | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/progs/redbook/bezcurve.c b/progs/redbook/bezcurve.c deleted file mode 100644 index 60a9c68080..0000000000 --- a/progs/redbook/bezcurve.c +++ /dev/null @@ -1,114 +0,0 @@ -/* - * 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 - * Unpublished-- rights reserved under the copyright laws of the - * United States.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. - */ - -/* bezcurve.c - * This program uses evaluators to draw a Bezier curve. - */ -#include <stdlib.h> -#include <GL/glut.h> - -GLfloat ctrlpoints[4][3] = { - { -4.0, -4.0, 0.0}, { -2.0, 4.0, 0.0}, - {2.0, -4.0, 0.0}, {4.0, 4.0, 0.0}}; - -static void init(void) -{ - glClearColor(0.0, 0.0, 0.0, 0.0); - glShadeModel(GL_FLAT); - glMap1f(GL_MAP1_VERTEX_3, 0.0, 1.0, 3, 4, &ctrlpoints[0][0]); - glEnable(GL_MAP1_VERTEX_3); -} - -static void display(void) -{ - int i; - - glClear(GL_COLOR_BUFFER_BIT); - glColor3f(1.0, 1.0, 1.0); - glBegin(GL_LINE_STRIP); - for (i = 0; i <= 30; i++) - glEvalCoord1f((GLfloat) i/30.0); - glEnd(); - /* The following code displays the control points as dots. */ - glPointSize(5.0); - glColor3f(1.0, 1.0, 0.0); - glBegin(GL_POINTS); - for (i = 0; i < 4; i++) - glVertex3fv(&ctrlpoints[i][0]); - glEnd(); - glFlush(); -} - -static void reshape(int w, int h) -{ - glViewport(0, 0, (GLsizei) w, (GLsizei) h); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - if (w <= h) - glOrtho(-5.0, 5.0, -5.0*(GLfloat)h/(GLfloat)w, - 5.0*(GLfloat)h/(GLfloat)w, -5.0, 5.0); - else - glOrtho(-5.0*(GLfloat)w/(GLfloat)h, - 5.0*(GLfloat)w/(GLfloat)h, -5.0, 5.0, -5.0, 5.0); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); -} - -/* ARGSUSED1 */ -static void keyboard(unsigned char key, int x, int y) -{ - switch (key) { - case 27: - exit(0); - break; - } -} - -int main(int argc, char** argv) -{ - glutInit(&argc, argv); - glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB); - glutInitWindowSize (500, 500); - glutInitWindowPosition (100, 100); - glutCreateWindow (argv[0]); - init (); - glutDisplayFunc(display); - glutReshapeFunc(reshape); - glutKeyboardFunc (keyboard); - glutMainLoop(); - return 0; -} |