From 663631725ee2d633d9ec5821cd48953ffd188d00 Mon Sep 17 00:00:00 2001 From: ftrapero Date: Tue, 27 Jun 2017 12:08:38 +0200 Subject: Squashed 'nx-X11/extras/Mesa_6.4.2/' content from commit 475b1f7 git-subtree-dir: nx-X11/extras/Mesa_6.4.2 git-subtree-split: 475b1f7b56fa36ef4f3b22a749f88a98ddc0d502 --- progs/redbook/sccolorlight.c | 141 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) create mode 100644 progs/redbook/sccolorlight.c (limited to 'progs/redbook/sccolorlight.c') diff --git a/progs/redbook/sccolorlight.c b/progs/redbook/sccolorlight.c new file mode 100644 index 000000000..0ea750e58 --- /dev/null +++ b/progs/redbook/sccolorlight.c @@ -0,0 +1,141 @@ + +/* Copyright (c) Mark J. Kilgard, 1994. */ + +/* + * (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 + * Unpublished-- rights reserved under the copyright laws of the + * United States.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. + */ +/* + * sccolorlight.c + * This program demonstrates the use of a colored + * (magenta, in this example) light source. Objects + * are drawn using a grey material characteristic. + * A single light source illuminates the objects. + */ +#include +#include + +/* Initialize material property and light source. + */ +void myinit(void) +{ + GLfloat light_ambient[] = { 0.0, 0.0, 0.0, 1.0 }; + GLfloat light_diffuse[] = { 1.0, 0.0, 1.0, 1.0 }; + GLfloat light_specular[] = { 1.0, 0.0, 1.0, 1.0 }; +/* light_position is NOT default value */ + GLfloat light_position[] = { 1.0, 1.0, 1.0, 0.0 }; + + glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient); + glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse); + glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular); + glLightfv(GL_LIGHT0, GL_POSITION, light_position); + + glEnable(GL_LIGHTING); + glEnable(GL_LIGHT0); + glDepthFunc(GL_LESS); + glEnable(GL_DEPTH_TEST); +} + +void display(void) +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + glPushMatrix (); + glRotatef (20.0, 1.0, 0.0, 0.0); + + glPushMatrix (); + glTranslatef (-0.75, 0.5, 0.0); + glRotatef (90.0, 1.0, 0.0, 0.0); + glutSolidTorus (0.275, 0.85, 20, 20); + glPopMatrix (); + + glPushMatrix (); + glTranslatef (-0.75, -0.5, 0.0); + glRotatef (270.0, 1.0, 0.0, 0.0); + glutSolidCone (1.0, 2.0, 20, 20); + glPopMatrix (); + + glPushMatrix (); + glTranslatef (0.75, 0.0, -1.0); + glutSolidSphere (1.0, 20, 20); + glPopMatrix (); + + glPopMatrix (); + glFlush(); +} + +void myReshape(int w, int h) +{ + glViewport(0, 0, w, h); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + if (w <= h) + glOrtho (-2.5, 2.5, -2.5*(GLfloat)h/(GLfloat)w, + 2.5*(GLfloat)h/(GLfloat)w, -10.0, 10.0); + else + glOrtho (-2.5*(GLfloat)w/(GLfloat)h, + 2.5*(GLfloat)w/(GLfloat)h, -2.5, 2.5, -10.0, 10.0); + glMatrixMode(GL_MODELVIEW); +} + +static void +key(unsigned char k, int x, int y) +{ + switch (k) { + case 27: /* Escape */ + exit(0); + break; + default: + return; + } + glutPostRedisplay(); +} + +/* Main Loop + * Open window with initial window size, title bar, + * RGBA display mode, and handle input events. + */ +int main(int argc, char** argv) +{ + glutInit(&argc, argv); + glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH); + glutInitWindowSize (500, 500); + glutCreateWindow (argv[0]); + myinit(); + glutReshapeFunc (myReshape); + glutDisplayFunc(display); + glutKeyboardFunc(key); + glutMainLoop(); + return 0; /* ANSI C requires main to return int. */ +} -- cgit v1.2.3