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/*
* (c) Copyright 1993, Silicon Graphics, Inc. * ALL RIGHTS RESERVED * Permission to use, copy, modify, and distribute this software for * any purpose and without fee is hereby granted, provided that the above * copyright notice appear in all copies and that both the copyright notice * and this permission notice appear in supporting documentation, and that * the name of Silicon Graphics, Inc. not be used in advertising * or publicity pertaining to distribution of the software without specific, * written prior permission. * * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE. * * US Government Users Restricted Rights * Use, duplication, or disclosure by the Government is subject to * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph * (c)(1)(ii) of the Rights in Technical Data and Computer Software * clause at DFARS 252.227-7013 and/or in similar or successor * clauses in the FAR or the DOD or NASA FAR Supplement. * Unpublished-- rights reserved under the copyright laws of the * United States. Contractor/manufacturer is Silicon Graphics, * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311. * * OpenGL(TM) is a trademark of Silicon Graphics, Inc. */#include <windows.h>
#include <GL/gl.h>
#include <gl/glaux.h>
#include "teapot.h"
#define static
long GRD;
#define TEAPOTSOLID 0
#define TEAPOTWIRE 1
static GLuint teapots[2] = {0, 0};
static float tex[2][2][2] = {{{0, 0},{1, 0}},{{0, 1},{1, 1}}};
static void solidTeapot(long grid, GLdouble scale){ float p[4][4][3], q[4][4][3], r[4][4][3], s[4][4][3]; long i, j, k, l;
if (grid < 2) grid = 7; GRD = grid; teapots[TEAPOTSOLID] = glGenLists (1); glNewList(teapots[TEAPOTSOLID], GL_COMPILE); glPushMatrix (); glRotatef ((GLfloat)270.0, (GLfloat)1.0, (GLfloat)0.0, (GLfloat)0.0); glScalef ((GLdouble)0.5*scale, (GLdouble)0.5*scale, (GLdouble)0.5*scale); glTranslatef ((GLfloat)0.0, (GLfloat)0.0, (GLfloat)-1.5); for (i = 0; i < 10; i++) { for (j = 0; j < 4; j++) for (k = 0; k < 4; k++) for (l = 0; l < 3; l++) { p[j][k][l] = cpdata[patchdata[i][j*4+k]][l]; q[j][k][l] = cpdata[patchdata[i][j*4+(3-k)]][l]; if (l == 1) q[j][k][l] *= (float)-1.0; if (i < 6) { r[j][k][l] = cpdata[patchdata[i][j*4+(3-k)]][l]; if (l == 0) r[j][k][l] *= (float)-1.0; s[j][k][l] = cpdata[patchdata[i][j*4+k]][l]; if (l == 0) s[j][k][l] *= (float)-1.0; if (l == 1) s[j][k][l] *= (float)-1.0; } } glMap2f(GL_MAP2_TEXTURE_COORD_2, 0, 1, 2, 2, 0, 1, 4, 2, &tex[0][0][0]); glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, &p[0][0][0]); glEnable(GL_MAP2_VERTEX_3); glEnable(GL_MAP2_TEXTURE_COORD_2); glMapGrid2f(GRD, (GLfloat)0.0, (GLfloat)1.0, GRD, (GLfloat)0.0, (GLfloat)1.0); glEvalMesh2(GL_FILL, 0, GRD, 0, GRD); glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, &q[0][0][0]); glEvalMesh2(GL_FILL, 0, GRD, 0, GRD); if (i < 6) { glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, &r[0][0][0]); glEvalMesh2(GL_FILL, 0, GRD, 0, GRD); glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, &s[0][0][0]); glEvalMesh2(GL_FILL, 0, GRD, 0, GRD); } } glDisable(GL_MAP2_VERTEX_3); glDisable(GL_MAP2_TEXTURE_COORD_2); glPopMatrix (); glEndList();}
static void wireTeapot(long grid, GLdouble scale){ float p[4][4][3], q[4][4][3], r[4][4][3], s[4][4][3]; long i, j, k, l; if (grid < 2) grid = 7; GRD = grid; teapots[TEAPOTWIRE] = glGenLists (1); glNewList(teapots[TEAPOTWIRE], GL_COMPILE); glPushMatrix (); glRotatef ((GLfloat)270.0, (GLfloat)1.0, (GLfloat)0.0, (GLfloat)0.0); glScalef ((GLdouble)0.5*scale, (GLdouble)0.5*scale, (GLdouble)0.5*scale); glTranslatef ((GLfloat)0.0, (GLfloat)0.0, (GLfloat)-1.5); for (i = 0; i < 10; i++) { for (j = 0; j < 4; j++) for (k = 0; k < 4; k++) for (l = 0; l < 3; l++) { p[j][k][l] = cpdata[patchdata[i][j*4+k]][l]; q[j][k][l] = cpdata[patchdata[i][j*4+(3-k)]][l]; if (l == 1) q[j][k][l] *= (float)-1.0; if (i < 6) { r[j][k][l] = cpdata[patchdata[i][j*4+(3-k)]][l]; if (l == 0) r[j][k][l] *= (float)-1.0; s[j][k][l] = cpdata[patchdata[i][j*4+k]][l]; if (l == 0) s[j][k][l] *= (float)-1.0; if (l == 1) s[j][k][l] *= (float)-1.0; } } glMap2f(GL_MAP2_TEXTURE_COORD_2, 0, 1, 2, 2, 0, 1, 4, 2, &tex[0][0][0]); glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, &p[0][0][0]); glEnable(GL_MAP2_VERTEX_3); glEnable(GL_MAP2_TEXTURE_COORD_2); glMapGrid2f(GRD, (GLfloat)0.0, (GLfloat)1.0, GRD, (GLfloat)0.0, (GLfloat)1.0); glEvalMesh2(GL_LINE, 0, GRD, 0, GRD); glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, &q[0][0][0]); glEvalMesh2(GL_LINE, 0, GRD, 0, GRD); if (i < 6) { glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, &r[0][0][0]); glEvalMesh2(GL_LINE, 0, GRD, 0, GRD); glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, &s[0][0][0]); glEvalMesh2(GL_LINE, 0, GRD, 0, GRD); } } glDisable(GL_MAP2_VERTEX_3); glDisable(GL_MAP2_TEXTURE_COORD_2); glPopMatrix (); glEndList();}
void auxSolidTeapot(GLdouble scale){ if (glIsList(teapots[TEAPOTSOLID]) == 0) solidTeapot (14, scale); glCallList(teapots[TEAPOTSOLID]);}
void auxWireTeapot(GLdouble scale){ if (glIsList(teapots[TEAPOTWIRE]) == 0) wireTeapot (10, scale); glCallList(teapots[TEAPOTWIRE]);}
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