src/glut/dos/teapot.c

   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  Unpublished-- rights reserved under the copyright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/glu.h>
  49 #include "GL/glut.h"
  50
  51 /* Rim, body, lid, and bottom data must be reflected in x and
  52    y; handle and spout data across the y axis only.  */
  53
  54 static int patchdata[][16] =
  55 {
  56     /* rim */
  57   {102, 103, 104, 105, 4, 5, 6, 7, 8, 9, 10, 11,
  58     12, 13, 14, 15},
  59     /* body */
  60   {12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
  61     24, 25, 26, 27},
  62   {24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36,
  63     37, 38, 39, 40},
  64     /* lid */
  65   {96, 96, 96, 96, 97, 98, 99, 100, 101, 101, 101,
  66     101, 0, 1, 2, 3,},
  67   {0, 1, 2, 3, 106, 107, 108, 109, 110, 111, 112,
  68     113, 114, 115, 116, 117},
  69     /* bottom */
  70   {118, 118, 118, 118, 124, 122, 119, 121, 123, 126,
  71     125, 120, 40, 39, 38, 37},
  72     /* handle */
  73   {41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
  74     53, 54, 55, 56},
  75   {53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
  76     28, 65, 66, 67},
  77     /* spout */
  78   {68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
  79     80, 81, 82, 83},
  80   {80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91,
  81     92, 93, 94, 95}
  82 };
  83 /* *INDENT-OFF* */
  84
  85 static float cpdata[][3] =
  86 {
  87     {0.2, 0, 2.7}, {0.2, -0.112, 2.7}, {0.112, -0.2, 2.7}, {0,
  88     -0.2, 2.7}, {1.3375, 0, 2.53125}, {1.3375, -0.749, 2.53125},
  89     {0.749, -1.3375, 2.53125}, {0, -1.3375, 2.53125}, {1.4375,
  90     0, 2.53125}, {1.4375, -0.805, 2.53125}, {0.805, -1.4375,
  91     2.53125}, {0, -1.4375, 2.53125}, {1.5, 0, 2.4}, {1.5, -0.84,
  92     2.4}, {0.84, -1.5, 2.4}, {0, -1.5, 2.4}, {1.75, 0, 1.875},
  93     {1.75, -0.98, 1.875}, {0.98, -1.75, 1.875}, {0, -1.75,
  94     1.875}, {2, 0, 1.35}, {2, -1.12, 1.35}, {1.12, -2, 1.35},
  95     {0, -2, 1.35}, {2, 0, 0.9}, {2, -1.12, 0.9}, {1.12, -2,
  96     0.9}, {0, -2, 0.9}, {-2, 0, 0.9}, {2, 0, 0.45}, {2, -1.12,
  97     0.45}, {1.12, -2, 0.45}, {0, -2, 0.45}, {1.5, 0, 0.225},
  98     {1.5, -0.84, 0.225}, {0.84, -1.5, 0.225}, {0, -1.5, 0.225},
  99     {1.5, 0, 0.15}, {1.5, -0.84, 0.15}, {0.84, -1.5, 0.15}, {0,
 100     -1.5, 0.15}, {-1.6, 0, 2.025}, {-1.6, -0.3, 2.025}, {-1.5,
 101     -0.3, 2.25}, {-1.5, 0, 2.25}, {-2.3, 0, 2.025}, {-2.3, -0.3,
 102     2.025}, {-2.5, -0.3, 2.25}, {-2.5, 0, 2.25}, {-2.7, 0,
 103     2.025}, {-2.7, -0.3, 2.025}, {-3, -0.3, 2.25}, {-3, 0,
 104     2.25}, {-2.7, 0, 1.8}, {-2.7, -0.3, 1.8}, {-3, -0.3, 1.8},
 105     {-3, 0, 1.8}, {-2.7, 0, 1.575}, {-2.7, -0.3, 1.575}, {-3,
 106     -0.3, 1.35}, {-3, 0, 1.35}, {-2.5, 0, 1.125}, {-2.5, -0.3,
 107     1.125}, {-2.65, -0.3, 0.9375}, {-2.65, 0, 0.9375}, {-2,
 108     -0.3, 0.9}, {-1.9, -0.3, 0.6}, {-1.9, 0, 0.6}, {1.7, 0,
 109     1.425}, {1.7, -0.66, 1.425}, {1.7, -0.66, 0.6}, {1.7, 0,
 110     0.6}, {2.6, 0, 1.425}, {2.6, -0.66, 1.425}, {3.1, -0.66,
 111     0.825}, {3.1, 0, 0.825}, {2.3, 0, 2.1}, {2.3, -0.25, 2.1},
 112     {2.4, -0.25, 2.025}, {2.4, 0, 2.025}, {2.7, 0, 2.4}, {2.7,
 113     -0.25, 2.4}, {3.3, -0.25, 2.4}, {3.3, 0, 2.4}, {2.8, 0,
 114     2.475}, {2.8, -0.25, 2.475}, {3.525, -0.25, 2.49375},
 115     {3.525, 0, 2.49375}, {2.9, 0, 2.475}, {2.9, -0.15, 2.475},
 116     {3.45, -0.15, 2.5125}, {3.45, 0, 2.5125}, {2.8, 0, 2.4},
 117     {2.8, -0.15, 2.4}, {3.2, -0.15, 2.4}, {3.2, 0, 2.4}, {0, 0,
 118     3.15}, {0.8, 0, 3.15}, {0.8, -0.45, 3.15}, {0.45, -0.8,
 119     3.15}, {0, -0.8, 3.15}, {0, 0, 2.85}, {1.4, 0, 2.4}, {1.4,
 120     -0.784, 2.4}, {0.784, -1.4, 2.4}, {0, -1.4, 2.4}, {0.4, 0,
 121     2.55}, {0.4, -0.224, 2.55}, {0.224, -0.4, 2.55}, {0, -0.4,
 122     2.55}, {1.3, 0, 2.55}, {1.3, -0.728, 2.55}, {0.728, -1.3,
 123     2.55}, {0, -1.3, 2.55}, {1.3, 0, 2.4}, {1.3, -0.728, 2.4},
 124     {0.728, -1.3, 2.4}, {0, -1.3, 2.4}, {0, 0, 0}, {1.425,
 125     -0.798, 0}, {1.5, 0, 0.075}, {1.425, 0, 0}, {0.798, -1.425,
 126     0}, {0, -1.5, 0.075}, {0, -1.425, 0}, {1.5, -0.84, 0.075},
 127     {0.84, -1.5, 0.075}
 128 };
 129
 130 static float tex[2][2][2] =
 131 {
 132   { {0, 0},
 133     {1, 0}},
 134   { {0, 1},
 135     {1, 1}}
 136 };
 137
 138 /* *INDENT-ON* */
 139
 140 static void
 141 teapot(GLint grid, GLdouble scale, GLenum type)
 142 {
 143   float p[4][4][3], q[4][4][3], r[4][4][3], s[4][4][3];
 144   long i, j, k, l;
 145
 146   glPushAttrib(GL_ENABLE_BIT | GL_EVAL_BIT);
 147   glEnable(GL_AUTO_NORMAL);
 148   glEnable(GL_NORMALIZE);
 149   glEnable(GL_MAP2_VERTEX_3);
 150   glEnable(GL_MAP2_TEXTURE_COORD_2);
 151   glPushMatrix();
 152   glRotatef(270.0, 1.0, 0.0, 0.0);
 153   glScalef(0.5 * scale, 0.5 * scale, 0.5 * scale);
 154   glTranslatef(0.0, 0.0, -1.5);
 155   for (i = 0; i < 10; i++) {
 156     for (j = 0; j < 4; j++) {
 157       for (k = 0; k < 4; k++) {
 158         for (l = 0; l < 3; l++) {
 159           p[j][k][l] = cpdata[patchdata[i][j * 4 + k]][l];
 160           q[j][k][l] = cpdata[patchdata[i][j * 4 + (3 - k)]][l];
 161           if (l == 1)
 162             q[j][k][l] *= -1.0;
 163           if (i < 6) {
 164             r[j][k][l] =
 165               cpdata[patchdata[i][j * 4 + (3 - k)]][l];
 166             if (l == 0)
 167               r[j][k][l] *= -1.0;
 168             s[j][k][l] = cpdata[patchdata[i][j * 4 + k]][l];
 169             if (l == 0)
 170               s[j][k][l] *= -1.0;
 171             if (l == 1)
 172               s[j][k][l] *= -1.0;
 173           }
 174         }
 175       }
 176     }
 177     glMap2f(GL_MAP2_TEXTURE_COORD_2, 0, 1, 2, 2, 0, 1, 4, 2,
 178       &tex[0][0][0]);
 179     glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,
 180       &p[0][0][0]);
 181     glMapGrid2f(grid, 0.0, 1.0, grid, 0.0, 1.0);
 182     glEvalMesh2(type, 0, grid, 0, grid);
 183     glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,
 184       &q[0][0][0]);
 185     glEvalMesh2(type, 0, grid, 0, grid);
 186     if (i < 6) {
 187       glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,
 188         &r[0][0][0]);
 189       glEvalMesh2(type, 0, grid, 0, grid);
 190       glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,
 191         &s[0][0][0]);
 192       glEvalMesh2(type, 0, grid, 0, grid);
 193     }
 194   }
 195   glPopMatrix();
 196   glPopAttrib();
 197 }
 198
 199 /* CENTRY */
 200 void APIENTRY
 201 glutSolidTeapot(GLdouble scale)
 202 {
 203   teapot(7, scale, GL_FILL);
 204 }
 205
 206 void APIENTRY
 207 glutWireTeapot(GLdouble scale)
 208 {
 209   teapot(10, scale, GL_LINE);
 210 }
 211
 212 /* ENDCENTRY */