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