draw_logo.c

嵌入式GUI OpenGL源代码。OpenGL是嵌入式开发中常用的一种GUI系统。

/*
 * (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 * Unpublished-- rights reserved under the copyright laws of the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 <GL/glut.h>

#include "objects.h"

static float scp[18][3] = {
  {1.000000, 0.000000, 0.000000},	{1.000000, 0.000000, 5.000000},
  {0.707107, 0.707107, 0.000000},	{0.707107, 0.707107, 5.000000},
  {0.000000, 1.000000, 0.000000},	{0.000000, 1.000000, 5.000000},
  {-0.707107, 0.707107, 0.000000},	{-0.707107, 0.707107, 5.000000},
  {-1.000000, 0.000000, 0.000000},	{-1.000000, 0.000000, 5.000000},
  {-0.707107, -0.707107, 0.000000},	{-0.707107, -0.707107, 5.000000},
  {0.000000, -1.000000, 0.000000},	{0.000000, -1.000000, 5.000000},
  {0.707107, -0.707107, 0.000000},	{0.707107, -0.707107, 5.000000},
  {1.000000, 0.000000, 0.000000},	{1.000000, 0.000000, 5.000000},
};

static float dcp[18][3] = {
  {1.000000, 0.000000, 0.000000},	{1.000000, 0.000000, 7.000000},
  {0.707107, 0.707107, 0.000000},	{0.707107, 0.707107, 7.000000},
  {0.000000, 1.000000, 0.000000},	{0.000000, 1.000000, 7.000000},
  {-0.707107, 0.707107, 0.000000},	{-0.707107, 0.707107, 7.000000},
  {-1.000000, 0.000000, 0.000000},	{-1.000000, 0.000000, 7.000000},
  {-0.707107, -0.707107, 0.000000},	{-0.707107, -0.707107, 7.000000},
  {0.000000, -1.000000, 0.000000},	{0.000000, -1.000000, 7.000000},
  {0.707107, -0.707107, 0.000000},	{0.707107, -0.707107, 7.000000},
  {1.000000, 0.000000, 0.000000},	{1.000000, 0.000000, 7.000000},
};

static float ep[7][9][3] = {
  {
    {1.000000, 0.000000, 0.000000},
    {0.707107, 0.707107, 0.000000},
    {0.000000, 1.000000, 0.000000},
    {-0.707107, 0.707107, 0.000000},
    {-1.000000, 0.000000, 0.000000},
    {-0.707107, -0.707107, 0.000000},
    {0.000000, -1.000000, 0.000000},
    {0.707107, -0.707107, 0.000000},
    {1.000000, 0.000000, 0.000000},
  },
  
  {
    {1.000000, 0.034074, 0.258819},
    {0.707107, 0.717087, 0.075806},
    {0.000000, 1.000000, 0.000000},
    {-0.707107, 0.717087, 0.075806},
    {-1.000000, 0.034074, 0.258819},
    {-0.707107, -0.648939, 0.441832},
    {0.000000, -0.931852, 0.517638},
    {0.707107, -0.648939, 0.441832},
    {1.000000, 0.034074, 0.258819},
  },
  
  {
    {1.000000, 0.133975, 0.500000},
    {0.707107, 0.746347, 0.146447},
    {0.000000, 1.000000, 0.000000},
    {-0.707107, 0.746347, 0.146447},
    {-1.000000, 0.133975, 0.500000},
    {-0.707107, -0.478398, 0.853553},
    {0.000000, -0.732051, 1.000000},
    {0.707107, -0.478398, 0.853553},
    {1.000000, 0.133975, 0.500000},
  },
  
  {
    {1.000000, 0.292893, 0.707107},
    {0.707107, 0.792893, 0.207107},
    {0.000000, 1.000000, 0.000000},
    {-0.707107, 0.792893, 0.207107},
    {-1.000000, 0.292893, 0.707107},
    {-0.707107, -0.207107, 1.207107},
    {0.000000, -0.414214, 1.414214},
    {0.707107, -0.207107, 1.207107},
    {1.000000, 0.292893, 0.707107},
  },
  
  {
    {1.000000, 0.500000, 0.866025},
    {0.707107, 0.853553, 0.253653},
    {0.000000, 1.000000, 0.000000},
    {-0.707107, 0.853553, 0.253653},
    {-1.000000, 0.500000, 0.866025},
    {-0.707107, 0.146447, 1.478398},
    {0.000000, 0.000000, 1.732051},
    {0.707107, 0.146447, 1.478398},
    {1.000000, 0.500000, 0.866025},
  },
  
  {
    {1.000000, 0.741181, 0.965926},
    {0.707107, 0.924194, 0.282913},
    {0.000000, 1.000000, 0.000000},
    {-0.707107, 0.924194, 0.282913},
    {-1.000000, 0.741181, 0.965926},
    {-0.707107, 0.558168, 1.648939},
    {0.000000, 0.482362, 1.931852},
    {0.707107, 0.558168, 1.648939},
    {1.000000, 0.741181, 0.965926},
  },
  
  {
    {1.000000, 1.000000, 1.000000},
    {0.707107, 1.000000, 0.292893},
    {0.000000, 1.000000, 0.000000},
    {-0.707107, 1.000000, 0.292893},
    {-1.000000, 1.000000, 1.000000},
    {-0.707107, 1.000000, 1.707107},
    {0.000000, 1.000000, 2.000000},
    {0.707107, 1.000000, 1.707107},
    {1.000000, 1.000000, 1.000000},
  },
  
};

static float en[7][9][3] = {
  {
    {1.000000, 0.000000, 0.000000},
    {0.707107, 0.707107, 0.000000},
    {0.000000, 1.000000, 0.000000},
    {-0.707107, 0.707107, 0.000000},
    {-1.000000, 0.000000, 0.000000},
    {-0.707107, -0.707107, 0.000000},
    {0.000000, -1.000000, 0.000000},
    {0.707107, -0.707107, 0.000000},
    {1.000000, 0.000000, 0.000000},
  },
  
  {
    {1.000000, 0.000000, 0.000000},
    {0.707107, 0.683013, -0.183013},
    {0.000000, 0.965926, -0.258819},
    {-0.707107, 0.683013, -0.183013},
    {-1.000000, 0.000000, 0.000000},
    {-0.707107, -0.683013, 0.183013},
    {0.000000, -0.965926, 0.258819},
    {0.707107, -0.683013, 0.183013},
    {1.000000, 0.000000, 0.000000},
  },
  
  {
    {1.000000, 0.000000, 0.000000},
    {0.707107, 0.612372, -0.353553},
    {0.000000, 0.866025, -0.500000},
    {-0.707107, 0.612372, -0.353553},
    {-1.000000, 0.000000, 0.000000},
    {-0.707107, -0.612372, 0.353553},
    {0.000000, -0.866025, 0.500000},
    {0.707107, -0.612372, 0.353553},
    {1.000000, 0.000000, 0.000000},
  },
  
  {
    {1.000000, 0.000000, 0.000000},
    {0.707107, 0.500000, -0.500000},
    {0.000000, 0.707107, -0.707107},
    {-0.707107, 0.500000, -0.500000},
    {-1.000000, 0.000000, 0.000000},
    {-0.707107, -0.500000, 0.500000},
    {0.000000, -0.707107, 0.707107},
    {0.707107, -0.500000, 0.500000},
    {1.000000, 0.000000, 0.000000},
  },
  
  {
    {1.000000, 0.000000, 0.000000},
    {0.707107, 0.353553, -0.612372},
    {0.000000, 0.500000, -0.866025},
    {-0.707107, 0.353553, -0.612372},
    {-1.000000, 0.000000, 0.000000},
    {-0.707107, -0.353553, 0.612372},
    {0.000000, -0.500000, 0.866025},
    {0.707107, -0.353553, 0.612372},
    {1.000000, 0.000000, 0.000000},
  },
  
  {
    {1.000000, 0.000000, 0.000000},
    {0.707107, 0.183013, -0.683013},
    {0.000000, 0.258819, -0.965926},
    {-0.707107, 0.183013, -0.683013},
    {-1.000000, 0.000000, 0.000000},
    {-0.707107, -0.183013, 0.683013},
    {0.000000, -0.258819, 0.965926},
    {0.707107, -0.183013, 0.683013},
    {1.000000, 0.000000, 0.000000},
  },
  
  {
    {1.000000, 0.000000, 0.000000},
    {0.707107, 0.000000, -0.707107},
    {0.000000, 0.000000, -1.000000},
    {-0.707107, 0.000000, -0.707107},
    {-1.000000, 0.000000, 0.000000},
    {-0.707107, 0.000000, 0.707107},
    {0.000000, 0.000000, 1.000000},
    {0.707107, 0.000000, 0.707107},
    {1.000000, 0.000000, 0.000000},
  },
  
};

static void draw_single_cylinder(void) {
  
  glBegin(GL_TRIANGLE_STRIP);
  glNormal3fv(scp[0]); glVertex3fv(scp[0]);
  glNormal3fv(scp[0]); glVertex3fv(scp[1]);
  glNormal3fv(scp[2]); glVertex3fv(scp[2]);
  glNormal3fv(scp[2]); glVertex3fv(scp[3]);
  glNormal3fv(scp[4]); glVertex3fv(scp[4]);
  glNormal3fv(scp[4]); glVertex3fv(scp[5]);
  glNormal3fv(scp[6]); glVertex3fv(scp[6]);
  glNormal3fv(scp[6]); glVertex3fv(scp[7]);
  glNormal3fv(scp[8]); glVertex3fv(scp[8]);
  glNormal3fv(scp[8]); glVertex3fv(scp[9]);
  glNormal3fv(scp[10]); glVertex3fv(scp[10]);
  glNormal3fv(scp[10]); glVertex3fv(scp[11]);
  glNormal3fv(scp[12]); glVertex3fv(scp[12]);
  glNormal3fv(scp[12]); glVertex3fv(scp[13]);
  glNormal3fv(scp[14]); glVertex3fv(scp[14]);
  glNormal3fv(scp[14]); glVertex3fv(scp[15]);
  glNormal3fv(scp[16]); glVertex3fv(scp[16]);
  glNormal3fv(scp[16]); glVertex3fv(scp[17]);
  glEnd();
}

static void draw_double_cylinder(void) {