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 Unpublished-- rights reserved under the copyright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