452 lines
11 KiB
C
452 lines
11 KiB
C
/*
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* (c) Copyright 1993, Silicon Graphics, Inc.
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* ALL RIGHTS RESERVED
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* Permission to use, copy, modify, and distribute this software for
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* any purpose and without fee is hereby granted, provided that the above
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* copyright notice appear in all copies and that both the copyright notice
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* and this permission notice appear in supporting documentation, and that
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* the name of Silicon Graphics, Inc. not be used in advertising
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* or publicity pertaining to distribution of the software without specific,
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* written prior permission.
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*
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* THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
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* AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
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* GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
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* SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
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* KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
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* LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
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* THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
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* ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
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* POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* US Government Users Restricted Rights
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* Use, duplication, or disclosure by the Government is subject to
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* restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
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* (c)(1)(ii) of the Rights in Technical Data and Computer Software
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* clause at DFARS 252.227-7013 and/or in similar or successor
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* clauses in the FAR or the DOD or NASA FAR Supplement.
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* Unpublished-- rights reserved under the copyright laws of the
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* United States. Contractor/manufacturer is Silicon Graphics,
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* Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
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*
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* OpenGL(TM) is a trademark of Silicon Graphics, Inc.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "tk.h"
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#define PI 3.141592654
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#define BLACK 0
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#define GRAY 128
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#define WHITE 255
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#define RD 0xA40000FF
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#define WT 0xFFFFFFFF
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#define brickImageWidth 16
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#define brickImageHeight 16
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GLenum rgb, doubleBuffer, directRender;
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float black[3] = {
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0.0, 0.0, 0.0
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};
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float blue[3] = {
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0.0, 0.0, 1.0
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};
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float gray[3] = {
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0.5, 0.5, 0.5
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};
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float white[3] = {
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1.0, 1.0, 1.0
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};
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GLenum doDither = GL_TRUE;
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GLenum shade = GL_TRUE;
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// mf
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GLenum texture = GL_FALSE;
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float xRotation = 30.0, yRotation = 30.0, zRotation = 0.0;
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GLint radius1, radius2;
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GLdouble angle1, angle2;
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GLint slices, stacks;
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GLint height;
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GLint orientation = GLU_OUTSIDE;
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GLint whichQuadric;
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GLUquadricObj *quadObj;
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GLuint brickImage[brickImageWidth*brickImageHeight] = {
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RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD,
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RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD,
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RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD,
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RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD,
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WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT,
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RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD,
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RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD,
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RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD,
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RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD,
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WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT,
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RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD,
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RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD,
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RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD,
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RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD,
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WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT,
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RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD
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};
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char *texFileName = 0;
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static void ErrorHandler(GLenum which)
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{
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fprintf(stderr, "Quad Error: %s\n", gluErrorString(which));
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}
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static void Init(void)
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{
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static GLint colorIndexes[3] = {0, 200, 255};
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static float ambient[] = {0.1, 0.1, 0.1, 1.0};
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static float diffuse[] = {0.5, 1.0, 1.0, 1.0};
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static float position[] = {90.0, 90.0, 150.0, 0.0};
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static float front_mat_shininess[] = {30.0};
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static float front_mat_specular[] = {0.2, 0.2, 0.2, 1.0};
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static float front_mat_diffuse[] = {0.5, 0.28, 0.38, 1.0};
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static float back_mat_shininess[] = {50.0};
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static float back_mat_specular[] = {0.5, 0.5, 0.2, 1.0};
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static float back_mat_diffuse[] = {1.0, 1.0, 0.2, 1.0};
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static float lmodel_ambient[] = {1.0, 1.0, 1.0, 1.0};
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static float lmodel_twoside[] = {GL_TRUE};
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static float decal[] = {GL_DECAL};
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static float modulate[] = {GL_MODULATE};
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static float repeat[] = {GL_REPEAT};
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static float nearest[] = {GL_NEAREST};
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TK_RGBImageRec *image;
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if (!rgb) {
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tkSetGreyRamp();
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}
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glClearColor(0.0, 0.0, 0.0, 0.0);
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glDepthFunc(GL_LEQUAL);
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glEnable(GL_DEPTH_TEST);
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glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
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glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
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glLightfv(GL_LIGHT0, GL_POSITION, position);
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glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
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glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside);
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glEnable(GL_LIGHTING);
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glEnable(GL_LIGHT0);
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glMaterialfv(GL_FRONT, GL_SHININESS, front_mat_shininess);
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glMaterialfv(GL_FRONT, GL_SPECULAR, front_mat_specular);
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glMaterialfv(GL_FRONT, GL_DIFFUSE, front_mat_diffuse);
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glMaterialfv(GL_BACK, GL_SHININESS, back_mat_shininess);
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glMaterialfv(GL_BACK, GL_SPECULAR, back_mat_specular);
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glMaterialfv(GL_BACK, GL_DIFFUSE, back_mat_diffuse);
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if (!rgb) {
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glMaterialiv( GL_FRONT_AND_BACK, GL_COLOR_INDEXES, colorIndexes);
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}
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glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, decal);
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glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, repeat);
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glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, repeat);
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glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, nearest);
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glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, nearest);
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if (texFileName) {
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image = tkRGBImageLoad(texFileName);
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glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
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gluBuild2DMipmaps(GL_TEXTURE_2D, 3, image->sizeX, image->sizeY,
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GL_RGB, GL_UNSIGNED_BYTE, image->data);
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} else {
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glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
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glTexImage2D(GL_TEXTURE_2D, 0, 4, brickImageWidth, brickImageHeight,
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0, GL_RGBA, GL_UNSIGNED_BYTE, (GLvoid *)brickImage);
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}
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quadObj = gluNewQuadric();
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gluQuadricCallback(quadObj, GLU_ERROR, ErrorHandler);
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radius1 = 10;
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radius2 = 5;
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angle1 = 90;
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angle2 = 180;
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slices = 16;
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stacks = 10;
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height = 20;
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}
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static void Reshape(int width, int height)
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{
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glViewport(0, 0, (GLint)width, (GLint)height);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glFrustum(-1, 1, -1, 1, 1, 10);
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gluLookAt(2, 2, 2, 0, 0, 0, 0, 0, 1);
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glMatrixMode(GL_MODELVIEW);
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}
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static GLenum Key(int key, GLenum mask)
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{
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switch (key) {
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case TK_ESCAPE:
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tkQuit();
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case TK_LEFT:
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yRotation += 5;
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break;
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case TK_RIGHT:
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yRotation -= 5;
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break;
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case TK_UP:
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xRotation += 5;
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break;
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case TK_DOWN:
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xRotation -= 5;
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break;
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case TK_X:
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zRotation += 5;
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break;
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case TK_x:
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zRotation -= 5;
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break;
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case TK_1:
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gluQuadricDrawStyle(quadObj, GLU_FILL);
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break;
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case TK_2:
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gluQuadricDrawStyle(quadObj, GLU_POINT);
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break;
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case TK_3:
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gluQuadricDrawStyle(quadObj, GLU_LINE);
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break;
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case TK_4:
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gluQuadricDrawStyle(quadObj, GLU_SILHOUETTE);
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break;
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case TK_0:
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shade = !shade;
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if (shade) {
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glShadeModel(GL_SMOOTH);
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gluQuadricNormals(quadObj, GLU_SMOOTH);
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} else {
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glShadeModel(GL_FLAT);
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gluQuadricNormals(quadObj, GLU_FLAT);
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}
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break;
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case TK_A:
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stacks++;
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break;
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case TK_a:
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stacks--;
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break;
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case TK_S:
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slices++;
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break;
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case TK_s:
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slices--;
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break;
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case TK_d:
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switch(orientation) {
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case GLU_OUTSIDE:
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orientation = GLU_INSIDE;
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break;
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case GLU_INSIDE:
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default:
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orientation = GLU_OUTSIDE;
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break;
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}
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gluQuadricOrientation(quadObj, orientation);
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break;
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case TK_f:
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whichQuadric = whichQuadric >= 3 ? 0 : whichQuadric + 1;
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break;
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case TK_G:
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radius1 += 1;
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break;
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case TK_g:
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radius1 -= 1;
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break;
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case TK_J:
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radius2 += 1;
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break;
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case TK_j:
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radius2 -= 1;
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break;
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case TK_H:
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height += 2;
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break;
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case TK_h:
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height -= 2;
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break;
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case TK_K:
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angle1 += 5;
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break;
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case TK_k:
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angle1 -= 5;
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break;
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case TK_L:
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angle2 += 5;
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break;
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case TK_l:
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angle2 -= 5;
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break;
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case TK_z:
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texture = !texture;
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if (texture) {
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gluQuadricTexture(quadObj, GL_TRUE);
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glEnable(GL_TEXTURE_2D);
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} else {
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gluQuadricTexture(quadObj, GL_FALSE);
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glDisable(GL_TEXTURE_2D);
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}
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break;
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case TK_q:
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glDisable(GL_CULL_FACE);
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break;
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case TK_w:
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glEnable(GL_CULL_FACE);
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glCullFace(GL_FRONT);
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break;
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case TK_e:
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glEnable(GL_CULL_FACE);
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glCullFace(GL_BACK);
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break;
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case TK_r:
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glFrontFace(GL_CW);
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break;
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case TK_t:
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glFrontFace(GL_CCW);
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break;
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case TK_y:
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doDither = !doDither;
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(doDither) ? glEnable(GL_DITHER) : glDisable(GL_DITHER);
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break;
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default:
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return GL_FALSE;
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}
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return GL_TRUE;
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}
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static void Draw(void)
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{
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glLoadIdentity();
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glRotatef(xRotation, 1, 0, 0);
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glRotatef(yRotation, 0, 1, 0);
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glRotatef(zRotation, 0, 0, 1);
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glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
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glColor3f(1.0, 1.0, 1.0);
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switch (whichQuadric) {
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case 0:
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glTranslatef(0, 0, -height/20.0);
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gluCylinder(quadObj, radius1/10.0, radius2/10.0, height/10.0,
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slices, stacks);
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break;
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case 1:
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gluSphere(quadObj, radius1/10.0, slices, stacks);
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break;
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case 2:
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gluPartialDisk(quadObj, radius2/10.0, radius1/10.0, slices,
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stacks, angle1, angle2);
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break;
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case 3:
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gluDisk(quadObj, radius2/10.0, radius1/10.0, slices, stacks);
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break;
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}
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glFlush();
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if (doubleBuffer) {
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tkSwapBuffers();
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}
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}
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static GLenum Args(int argc, char **argv)
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{
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GLint i;
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rgb = GL_TRUE;
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doubleBuffer = GL_FALSE;
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directRender = GL_FALSE;
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for (i = 1; i < argc; i++) {
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if (strcmp(argv[i], "-ci") == 0) {
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rgb = GL_FALSE;
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} else if (strcmp(argv[i], "-rgb") == 0) {
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rgb = GL_TRUE;
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} else if (strcmp(argv[i], "-sb") == 0) {
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doubleBuffer = GL_FALSE;
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} else if (strcmp(argv[i], "-db") == 0) {
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doubleBuffer = GL_TRUE;
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} else if (strcmp(argv[i], "-dr") == 0) {
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directRender = GL_TRUE;
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} else if (strcmp(argv[i], "-ir") == 0) {
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directRender = GL_FALSE;
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} else if (strcmp(argv[i], "-f") == 0) {
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if (i+1 >= argc || argv[i+1][0] == '-') {
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printf("-f (No file name).\n");
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return GL_FALSE;
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} else {
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texFileName = argv[++i];
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}
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} else {
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printf("%s (Bad option).\n", argv[i]);
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return GL_FALSE;
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}
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}
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return GL_TRUE;
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}
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void main(int argc, char **argv)
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{
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GLenum type;
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if (Args(argc, argv) == GL_FALSE) {
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tkQuit();
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}
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tkInitPosition(0, 0, 300, 300);
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type = TK_DEPTH16;
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type |= (rgb) ? TK_RGB : TK_INDEX;
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type |= (doubleBuffer) ? TK_DOUBLE : TK_SINGLE;
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type |= (directRender) ? TK_DIRECT : TK_INDIRECT;
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tkInitDisplayMode(type);
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if (tkInitWindow("Quad Test") == GL_FALSE) {
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tkQuit();
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}
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Init();
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tkExposeFunc(Reshape);
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tkReshapeFunc(Reshape);
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tkKeyDownFunc(Key);
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tkDisplayFunc(Draw);
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tkExec();
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}
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