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author | ftrapero <frantracer@gmail.com> | 2017-06-27 12:08:38 +0200 |
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committer | ftrapero <frantracer@gmail.com> | 2017-06-27 12:08:38 +0200 |
commit | b30506dface604c78e445905ce263f166945d67b (patch) | |
tree | 1c23f91f36eb445850b654daa9c5e30bb47072e5 /nx-X11/extras/Mesa_6.4.2/progs/redbook/torus.c | |
parent | c032f0e341c981036e9b3245a0e0710ad61599d0 (diff) | |
parent | 663631725ee2d633d9ec5821cd48953ffd188d00 (diff) | |
download | nx-libs-b30506dface604c78e445905ce263f166945d67b.tar.gz nx-libs-b30506dface604c78e445905ce263f166945d67b.tar.bz2 nx-libs-b30506dface604c78e445905ce263f166945d67b.zip |
Include mesa-6.4.2 project
Diffstat (limited to 'nx-X11/extras/Mesa_6.4.2/progs/redbook/torus.c')
-rw-r--r-- | nx-X11/extras/Mesa_6.4.2/progs/redbook/torus.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa_6.4.2/progs/redbook/torus.c b/nx-X11/extras/Mesa_6.4.2/progs/redbook/torus.c new file mode 100644 index 000000000..7ae4d41e2 --- /dev/null +++ b/nx-X11/extras/Mesa_6.4.2/progs/redbook/torus.c @@ -0,0 +1,152 @@ +/* + * 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. + */ + +/* + * torus.c + * This program demonstrates the creation of a display list. + */ + +#include <GL/glut.h> +#include <stdio.h> +#include <math.h> +#include <stdlib.h> + +/* Some <math.h> files do not define M_PI... */ +#ifndef M_PI +#define M_PI 3.14159265358979323846 +#endif + +GLuint theTorus; + +/* Draw a torus */ +static void torus(int numc, int numt) +{ + int i, j, k; + double s, t, x, y, z, twopi; + + twopi = 2 * (double)M_PI; + for (i = 0; i < numc; i++) { + glBegin(GL_QUAD_STRIP); + for (j = 0; j <= numt; j++) { + for (k = 1; k >= 0; k--) { + s = (i + k) % numc + 0.5; + t = j % numt; + + x = (1+.1*cos(s*twopi/numc))*cos(t*twopi/numt); + y = (1+.1*cos(s*twopi/numc))*sin(t*twopi/numt); + z = .1 * sin(s * twopi / numc); + glVertex3f(x, y, z); + } + } + glEnd(); + } +} + +/* Create display list with Torus and initialize state */ +static void init(void) +{ + theTorus = glGenLists (1); + glNewList(theTorus, GL_COMPILE); + torus(8, 25); + glEndList(); + + glShadeModel(GL_FLAT); + glClearColor(0.0, 0.0, 0.0, 0.0); +} + +/* Clear window and draw torus */ +void display(void) +{ + glClear(GL_COLOR_BUFFER_BIT); + glColor3f (1.0, 1.0, 1.0); + glCallList(theTorus); + glFlush(); +} + +/* Handle window resize */ +void reshape(int w, int h) +{ + glViewport(0, 0, (GLsizei) w, (GLsizei) h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluPerspective(30, (GLfloat) w/(GLfloat) h, 1.0, 100.0); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + gluLookAt(0, 0, 10, 0, 0, 0, 0, 1, 0); +} + +/* Rotate about x-axis when "x" typed; rotate about y-axis + when "y" typed; "i" returns torus to original view */ +/* ARGSUSED1 */ +void keyboard(unsigned char key, int x, int y) +{ + switch (key) { + case 'x': + case 'X': + glRotatef(30.,1.0,0.0,0.0); + glutPostRedisplay(); + break; + case 'y': + case 'Y': + glRotatef(30.,0.0,1.0,0.0); + glutPostRedisplay(); + break; + case 'i': + case 'I': + glLoadIdentity(); + gluLookAt(0, 0, 10, 0, 0, 0, 0, 1, 0); + glutPostRedisplay(); + break; + case 27: + exit(0); + break; + } +} + +int main(int argc, char **argv) +{ + glutInitWindowSize(200, 200); + glutInit(&argc, argv); + glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB); + glutCreateWindow(argv[0]); + init(); + glutReshapeFunc(reshape); + glutKeyboardFunc(keyboard); + glutDisplayFunc(display); + glutMainLoop(); + return 0; +} |