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Diffstat (limited to 'progs/redbook/aaindex.c')
-rw-r--r-- | progs/redbook/aaindex.c | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/progs/redbook/aaindex.c b/progs/redbook/aaindex.c deleted file mode 100644 index 6011ec44b6..0000000000 --- a/progs/redbook/aaindex.c +++ /dev/null @@ -1,153 +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 - * Unpublished-- rights reserved under the copyright laws of the - * United States.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. - */ - -/* - * aaindex.c - * This program draws shows how to draw anti-aliased lines in color - * index mode. It draws two diagonal lines to form an X; when 'r' - * is typed in the window, the lines are rotated in opposite - * directions. - */ -#include <GL/glut.h> -#include "stdlib.h" - -#define RAMPSIZE 16 -#define RAMP1START 32 -#define RAMP2START 48 - -static float rotAngle = 0.; - -/* Initialize antialiasing for color index mode, - * including loading a green color ramp starting - * at RAMP1START, and a blue color ramp starting - * at RAMP2START. The ramps must be a multiple of 16. - */ -static void init(void) -{ - int i; - - for (i = 0; i < RAMPSIZE; i++) { - GLfloat shade; - shade = (GLfloat) i/(GLfloat) RAMPSIZE; - glutSetColor(RAMP1START+(GLint)i, 0., shade, 0.); - glutSetColor(RAMP2START+(GLint)i, 0., 0., shade); - } - - glEnable (GL_LINE_SMOOTH); - glHint (GL_LINE_SMOOTH_HINT, GL_DONT_CARE); - glLineWidth (1.5); - - glClearIndex ((GLfloat) RAMP1START); -} - -/* Draw 2 diagonal lines to form an X - */ -static void display(void) -{ - glClear(GL_COLOR_BUFFER_BIT); - - glIndexi(RAMP1START); - glPushMatrix(); - glRotatef(-rotAngle, 0.0, 0.0, 0.1); - glBegin (GL_LINES); - glVertex2f (-0.5, 0.5); - glVertex2f (0.5, -0.5); - glEnd (); - glPopMatrix(); - - glIndexi(RAMP2START); - glPushMatrix(); - glRotatef(rotAngle, 0.0, 0.0, 0.1); - glBegin (GL_LINES); - glVertex2f (0.5, 0.5); - glVertex2f (-0.5, -0.5); - glEnd (); - glPopMatrix(); - - glFlush(); -} - -static void reshape(int w, int h) -{ - glViewport(0, 0, (GLsizei) w, (GLsizei) h); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - if (w <= h) - gluOrtho2D (-1.0, 1.0, - -1.0*(GLfloat)h/(GLfloat)w, 1.0*(GLfloat)h/(GLfloat)w); - else - gluOrtho2D (-1.0*(GLfloat)w/(GLfloat)h, - 1.0*(GLfloat)w/(GLfloat)h, -1.0, 1.0); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); -} - -/* ARGSUSED1 */ -static void keyboard(unsigned char key, int x, int y) -{ - switch (key) { - case 'r': - case 'R': - rotAngle += 20.; - if (rotAngle >= 360.) rotAngle = 0.; - glutPostRedisplay(); - break; - case 27: /* Escape Key */ - exit(0); - break; - default: - break; - } -} - -/* Main Loop - * Open window with initial window size, title bar, - * color index display mode, and handle input events. - */ -int main(int argc, char** argv) -{ - glutInit(&argc, argv); - glutInitDisplayMode (GLUT_SINGLE | GLUT_INDEX); - glutInitWindowSize (200, 200); - glutCreateWindow (argv[0]); - init(); - glutReshapeFunc (reshape); - glutKeyboardFunc (keyboard); - glutDisplayFunc (display); - glutMainLoop(); - return 0; -} |