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 Unpublished-- rights reserved under the copyright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
teapot(GLint grid,GLdouble scale,GLenum type)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
glutSolidTeapot(GLdouble scale)208 glutSolidTeapot(GLdouble scale)
209 {
210 teapot(14, scale, GL_FILL);
211 }
212
213 void APIENTRY
glutWireTeapot(GLdouble scale)214 glutWireTeapot(GLdouble scale)
215 {
216 teapot(10, scale, GL_LINE);
217 }
218
219 /* ENDCENTRY */
220