1 /* 2 * Copyright 1994-1997 Mark Kilgard, All rights reserved. 3 * Distributed under the terms of the MIT License. 4 * 5 * GPL licensing not permitted. 6 * 7 * Authors: 8 * Mark Kilgard 9 */ 10 11 /** 12 (c) Copyright 1993, Silicon Graphics, Inc. 13 14 ALL RIGHTS RESERVED 15 16 Permission to use, copy, modify, and distribute this software 17 for any purpose and without fee is hereby granted, provided 18 that the above copyright notice appear in all copies and that 19 both the copyright notice and this permission notice appear in 20 supporting documentation, and that the name of Silicon 21 Graphics, Inc. not be used in advertising or publicity 22 pertaining to distribution of the software without specific, 23 written prior permission. 24 25 THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU 26 "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR 27 OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF 28 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO 29 EVENT SHALL SILICON GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE 30 ELSE FOR ANY DIRECT, SPECIAL, INCIDENTAL, INDIRECT OR 31 CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER, 32 INCLUDING WITHOUT LIMITATION, LOSS OF PROFIT, LOSS OF USE, 33 SAVINGS OR REVENUE, OR THE CLAIMS OF THIRD PARTIES, WHETHER OR 34 NOT SILICON GRAPHICS, INC. HAS BEEN ADVISED OF THE POSSIBILITY 35 OF SUCH LOSS, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 36 ARISING OUT OF OR IN CONNECTION WITH THE POSSESSION, USE OR 37 PERFORMANCE OF THIS SOFTWARE. 38 39 US Government Users Restricted Rights 40 41 Use, duplication, or disclosure by the Government is subject to 42 restrictions set forth in FAR 52.227.19(c)(2) or subparagraph 43 (c)(1)(ii) of the Rights in Technical Data and Computer 44 Software clause at DFARS 252.227-7013 and/or in similar or 45 successor clauses in the FAR or the DOD or NASA FAR 46 Supplement. Unpublished-- rights reserved under the copyright 47 laws of the United States. Contractor/manufacturer is Silicon 48 Graphics, Inc., 2011 N. Shoreline Blvd., Mountain View, CA 49 94039-7311. 50 51 OpenGL(TM) is a trademark of Silicon Graphics, Inc. 52 */ 53 54 55 #include "glutint.h" 56 57 58 /* Rim, body, lid, and bottom data must be reflected in x and 59 y; handle and spout data across the y axis only. */ 60 61 static int patchdata[][16] = 62 { 63 /* rim */ 64 {102, 103, 104, 105, 4, 5, 6, 7, 8, 9, 10, 11, 65 12, 13, 14, 15}, 66 /* body */ 67 {12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 68 24, 25, 26, 27}, 69 {24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36, 70 37, 38, 39, 40}, 71 /* lid */ 72 {96, 96, 96, 96, 97, 98, 99, 100, 101, 101, 101, 73 101, 0, 1, 2, 3,}, 74 {0, 1, 2, 3, 106, 107, 108, 109, 110, 111, 112, 75 113, 114, 115, 116, 117}, 76 /* bottom */ 77 {118, 118, 118, 118, 124, 122, 119, 121, 123, 126, 78 125, 120, 40, 39, 38, 37}, 79 /* handle */ 80 {41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 81 53, 54, 55, 56}, 82 {53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 83 28, 65, 66, 67}, 84 /* spout */ 85 {68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 86 80, 81, 82, 83}, 87 {80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 88 92, 93, 94, 95} 89 }; 90 /* *INDENT-OFF* */ 91 92 static float cpdata[][3] = 93 { 94 {0.2, 0, 2.7}, {0.2, -0.112, 2.7}, {0.112, -0.2, 2.7}, {0, 95 -0.2, 2.7}, {1.3375, 0, 2.53125}, {1.3375, -0.749, 2.53125}, 96 {0.749, -1.3375, 2.53125}, {0, -1.3375, 2.53125}, {1.4375, 97 0, 2.53125}, {1.4375, -0.805, 2.53125}, {0.805, -1.4375, 98 2.53125}, {0, -1.4375, 2.53125}, {1.5, 0, 2.4}, {1.5, -0.84, 99 2.4}, {0.84, -1.5, 2.4}, {0, -1.5, 2.4}, {1.75, 0, 1.875}, 100 {1.75, -0.98, 1.875}, {0.98, -1.75, 1.875}, {0, -1.75, 101 1.875}, {2, 0, 1.35}, {2, -1.12, 1.35}, {1.12, -2, 1.35}, 102 {0, -2, 1.35}, {2, 0, 0.9}, {2, -1.12, 0.9}, {1.12, -2, 103 0.9}, {0, -2, 0.9}, {-2, 0, 0.9}, {2, 0, 0.45}, {2, -1.12, 104 0.45}, {1.12, -2, 0.45}, {0, -2, 0.45}, {1.5, 0, 0.225}, 105 {1.5, -0.84, 0.225}, {0.84, -1.5, 0.225}, {0, -1.5, 0.225}, 106 {1.5, 0, 0.15}, {1.5, -0.84, 0.15}, {0.84, -1.5, 0.15}, {0, 107 -1.5, 0.15}, {-1.6, 0, 2.025}, {-1.6, -0.3, 2.025}, {-1.5, 108 -0.3, 2.25}, {-1.5, 0, 2.25}, {-2.3, 0, 2.025}, {-2.3, -0.3, 109 2.025}, {-2.5, -0.3, 2.25}, {-2.5, 0, 2.25}, {-2.7, 0, 110 2.025}, {-2.7, -0.3, 2.025}, {-3, -0.3, 2.25}, {-3, 0, 111 2.25}, {-2.7, 0, 1.8}, {-2.7, -0.3, 1.8}, {-3, -0.3, 1.8}, 112 {-3, 0, 1.8}, {-2.7, 0, 1.575}, {-2.7, -0.3, 1.575}, {-3, 113 -0.3, 1.35}, {-3, 0, 1.35}, {-2.5, 0, 1.125}, {-2.5, -0.3, 114 1.125}, {-2.65, -0.3, 0.9375}, {-2.65, 0, 0.9375}, {-2, 115 -0.3, 0.9}, {-1.9, -0.3, 0.6}, {-1.9, 0, 0.6}, {1.7, 0, 116 1.425}, {1.7, -0.66, 1.425}, {1.7, -0.66, 0.6}, {1.7, 0, 117 0.6}, {2.6, 0, 1.425}, {2.6, -0.66, 1.425}, {3.1, -0.66, 118 0.825}, {3.1, 0, 0.825}, {2.3, 0, 2.1}, {2.3, -0.25, 2.1}, 119 {2.4, -0.25, 2.025}, {2.4, 0, 2.025}, {2.7, 0, 2.4}, {2.7, 120 -0.25, 2.4}, {3.3, -0.25, 2.4}, {3.3, 0, 2.4}, {2.8, 0, 121 2.475}, {2.8, -0.25, 2.475}, {3.525, -0.25, 2.49375}, 122 {3.525, 0, 2.49375}, {2.9, 0, 2.475}, {2.9, -0.15, 2.475}, 123 {3.45, -0.15, 2.5125}, {3.45, 0, 2.5125}, {2.8, 0, 2.4}, 124 {2.8, -0.15, 2.4}, {3.2, -0.15, 2.4}, {3.2, 0, 2.4}, {0, 0, 125 3.15}, {0.8, 0, 3.15}, {0.8, -0.45, 3.15}, {0.45, -0.8, 126 3.15}, {0, -0.8, 3.15}, {0, 0, 2.85}, {1.4, 0, 2.4}, {1.4, 127 -0.784, 2.4}, {0.784, -1.4, 2.4}, {0, -1.4, 2.4}, {0.4, 0, 128 2.55}, {0.4, -0.224, 2.55}, {0.224, -0.4, 2.55}, {0, -0.4, 129 2.55}, {1.3, 0, 2.55}, {1.3, -0.728, 2.55}, {0.728, -1.3, 130 2.55}, {0, -1.3, 2.55}, {1.3, 0, 2.4}, {1.3, -0.728, 2.4}, 131 {0.728, -1.3, 2.4}, {0, -1.3, 2.4}, {0, 0, 0}, {1.425, 132 -0.798, 0}, {1.5, 0, 0.075}, {1.425, 0, 0}, {0.798, -1.425, 133 0}, {0, -1.5, 0.075}, {0, -1.425, 0}, {1.5, -0.84, 0.075}, 134 {0.84, -1.5, 0.075} 135 }; 136 137 static float tex[2][2][2] = 138 { 139 { {0, 0}, 140 {1, 0}}, 141 { {0, 1}, 142 {1, 1}} 143 }; 144 145 /* *INDENT-ON* */ 146 147 static void 148 teapot(GLint grid, GLdouble scale, GLenum type) 149 { 150 float p[4][4][3], q[4][4][3], r[4][4][3], s[4][4][3]; 151 long i, j, k, l; 152 153 glPushAttrib(GL_ENABLE_BIT | GL_EVAL_BIT); 154 glEnable(GL_AUTO_NORMAL); 155 glEnable(GL_NORMALIZE); 156 glEnable(GL_MAP2_VERTEX_3); 157 glEnable(GL_MAP2_TEXTURE_COORD_2); 158 glPushMatrix(); 159 glRotatef(270.0, 1.0, 0.0, 0.0); 160 glScalef(0.5 * scale, 0.5 * scale, 0.5 * scale); 161 glTranslatef(0.0, 0.0, -1.5); 162 for (i = 0; i < 10; i++) { 163 for (j = 0; j < 4; j++) { 164 for (k = 0; k < 4; k++) { 165 for (l = 0; l < 3; l++) { 166 p[j][k][l] = cpdata[patchdata[i][j * 4 + k]][l]; 167 q[j][k][l] = cpdata[patchdata[i][j * 4 + (3 - k)]][l]; 168 if (l == 1) 169 q[j][k][l] *= -1.0; 170 if (i < 6) { 171 r[j][k][l] = 172 cpdata[patchdata[i][j * 4 + (3 - k)]][l]; 173 if (l == 0) 174 r[j][k][l] *= -1.0; 175 s[j][k][l] = cpdata[patchdata[i][j * 4 + k]][l]; 176 if (l == 0) 177 s[j][k][l] *= -1.0; 178 if (l == 1) 179 s[j][k][l] *= -1.0; 180 } 181 } 182 } 183 } 184 glMap2f(GL_MAP2_TEXTURE_COORD_2, 0, 1, 2, 2, 0, 1, 4, 2, 185 &tex[0][0][0]); 186 glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, 187 &p[0][0][0]); 188 glMapGrid2f(grid, 0.0, 1.0, grid, 0.0, 1.0); 189 glEvalMesh2(type, 0, grid, 0, grid); 190 glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, 191 &q[0][0][0]); 192 glEvalMesh2(type, 0, grid, 0, grid); 193 if (i < 6) { 194 glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, 195 &r[0][0][0]); 196 glEvalMesh2(type, 0, grid, 0, grid); 197 glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, 198 &s[0][0][0]); 199 glEvalMesh2(type, 0, grid, 0, grid); 200 } 201 } 202 glPopMatrix(); 203 glPopAttrib(); 204 } 205 206 /* CENTRY */ 207 void APIENTRY 208 glutSolidTeapot(GLdouble scale) 209 { 210 teapot(14, scale, GL_FILL); 211 } 212 213 void APIENTRY 214 glutWireTeapot(GLdouble scale) 215 { 216 teapot(10, scale, GL_LINE); 217 } 218 219 /* ENDCENTRY */ 220