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git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@3 232f8b59-042b-4e1e-8c03-345bb8c30851

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diff --git a/src/net/java/games/util/GLUT.java b/src/net/java/games/util/GLUT.java
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+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package net.java.games.util;
+
+import net.java.games.jogl.*;
+
+/** Subset of the routines provided by the GLUT interface. Note the
+    signatures of many of the methods are necessarily different than
+    the corresponding C version. A GLUT object must only be used from
+    one particular thread at a time. <P>
+
+    Copyright (c) Mark J. Kilgard, 1994, 1997. <P>
+
+    (c) Copyright 1993, Silicon Graphics, Inc. <P>
+
+    ALL RIGHTS RESERVED <P>
+
+    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. <P>
+
+    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. <P>
+
+    US Government Users Restricted Rights <P>
+
+    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. <P>
+
+    OpenGL(TM) is a trademark of Silicon Graphics, Inc. <P>
+*/
+
+public class GLUT {
+  public static final int STROKE_ROMAN = 0;
+  public static final int STROKE_MONO_ROMAN = 1;
+  public static final int BITMAP_9_BY_15 = 2;
+  public static final int BITMAP_8_BY_13 = 3;
+  public static final int BITMAP_TIMES_ROMAN_10 = 4;
+  public static final int BITMAP_TIMES_ROMAN_24 = 5;
+  public static final int BITMAP_HELVETICA_10 = 6;
+  public static final int BITMAP_HELVETICA_12 = 7;
+  public static final int BITMAP_HELVETICA_18 = 8;
+
+  //----------------------------------------------------------------------
+  // Shapes
+  //
+
+  public void glutWireSphere(GLU glu, double radius, int slices, int stacks) {
+    quadObjInit(glu);
+    glu.gluQuadricDrawStyle(quadObj, GLU.GLU_LINE);
+    glu.gluQuadricNormals(quadObj, GLU.GLU_SMOOTH);
+    /* If we ever changed/used the texture or orientation state
+       of quadObj, we'd need to change it to the defaults here
+       with gluQuadricTexture and/or gluQuadricOrientation. */
+    glu.gluSphere(quadObj, radius, slices, stacks);
+  }
+
+  public void glutSolidSphere(GLU glu, double radius, int slices, int stacks) {
+    quadObjInit(glu);
+    glu.gluQuadricDrawStyle(quadObj, GLU.GLU_FILL);
+    glu.gluQuadricNormals(quadObj, GLU.GLU_SMOOTH);
+    /* If we ever changed/used the texture or orientation state
+       of quadObj, we'd need to change it to the defaults here
+       with gluQuadricTexture and/or gluQuadricOrientation. */
+    glu.gluSphere(quadObj, radius, slices, stacks);
+  }
+
+  public void glutWireCone(GLU glu,
+                           double base, double height,
+                           int slices, int stacks) {
+    quadObjInit(glu);
+    glu.gluQuadricDrawStyle(quadObj, GLU.GLU_LINE);
+    glu.gluQuadricNormals(quadObj, GLU.GLU_SMOOTH);
+    /* If we ever changed/used the texture or orientation state
+       of quadObj, we'd need to change it to the defaults here
+       with gluQuadricTexture and/or gluQuadricOrientation. */
+    glu.gluCylinder(quadObj, base, 0.0, height, slices, stacks);
+  }
+
+  public void glutSolidCone(GLU glu,
+                            double base, double height,
+                            int slices, int stacks) {
+    quadObjInit(glu);
+    glu.gluQuadricDrawStyle(quadObj, GLU.GLU_FILL);
+    glu.gluQuadricNormals(quadObj, GLU.GLU_SMOOTH);
+    /* If we ever changed/used the texture or orientation state
+       of quadObj, we'd need to change it to the defaults here
+       with gluQuadricTexture and/or gluQuadricOrientation. */
+    glu.gluCylinder(quadObj, base, 0.0, height, slices, stacks);
+  }
+
+  public void glutWireCube(GL gl, float size) {
+    drawBox(gl, size, GL.GL_LINE_LOOP);
+  }
+
+  public void glutSolidCube(GL gl, float size) {
+    drawBox(gl, size, GL.GL_QUADS);
+  }
+
+  public void glutWireTorus(GL gl,
+                            double innerRadius, double outerRadius,
+                            int nsides, int rings) {
+    gl.glPushAttrib(GL.GL_POLYGON_BIT);
+    gl.glPolygonMode(GL.GL_FRONT_AND_BACK, GL.GL_LINE);
+    doughnut(gl, innerRadius, outerRadius, nsides, rings);
+    gl.glPopAttrib();
+  }
+
+  public void glutSolidTorus(GL gl,
+                             double innerRadius, double outerRadius,
+                             int nsides, int rings) {
+    doughnut(gl, innerRadius, outerRadius, nsides, rings);
+  }
+
+  public void glutWireDodecahedron(GL gl) {
+    dodecahedron(gl, GL.GL_LINE_LOOP);
+  }
+
+  public void glutSolidDodecahedron(GL gl) {
+    dodecahedron(gl, GL.GL_TRIANGLE_FAN);
+  }
+
+  public void glutWireOctahedron(GL gl) {
+    octahedron(gl, GL.GL_LINE_LOOP);
+  }
+
+  public void glutSolidOctahedron(GL gl) {
+    octahedron(gl, GL.GL_TRIANGLES);
+  }
+
+  public void glutWireIcosahedron(GL gl) {
+    icosahedron(gl, GL.GL_LINE_LOOP);
+  }
+
+  public void glutSolidIcosahedron(GL gl) {
+    icosahedron(gl, GL.GL_TRIANGLES);
+  }
+
+  public void glutWireTetrahedron(GL gl) {
+    tetrahedron(gl, GL.GL_LINE_LOOP);
+  }
+
+  public void glutSolidTetrahedron(GL gl) {
+    tetrahedron(gl, GL.GL_TRIANGLES);
+  }
+
+  //----------------------------------------------------------------------
+  // Fonts
+  //
+
+  public void glutBitmapCharacter(GL gl, int font, char character) {
+    int[] swapbytes  = new int[1];
+    int[] lsbfirst   = new int[1];
+    int[] rowlength  = new int[1];
+    int[] skiprows   = new int[1];
+    int[] skippixels = new int[1];
+    int[] alignment  = new int[1];
+    beginBitmap(gl, 
+                swapbytes,
+                lsbfirst,
+                rowlength,
+                skiprows,
+                skippixels,
+                alignment);
+    bitmapCharacterImpl(gl, font, character);
+    endBitmap(gl, 
+              swapbytes,
+              lsbfirst,
+              rowlength,
+              skiprows,
+              skippixels,
+              alignment);
+  }
+
+  public void glutBitmapString   (GL gl, int font, String string) {
+    int[] swapbytes  = new int[1];
+    int[] lsbfirst   = new int[1];
+    int[] rowlength  = new int[1];
+    int[] skiprows   = new int[1];
+    int[] skippixels = new int[1];
+    int[] alignment  = new int[1];
+    beginBitmap(gl, 
+                swapbytes,
+                lsbfirst,
+                rowlength,
+                skiprows,
+                skippixels,
+                alignment);
+    int len = string.length();
+    for (int i = 0; i < len; i++) {
+      bitmapCharacterImpl(gl, font, string.charAt(i));
+    }
+    endBitmap(gl, 
+              swapbytes,
+              lsbfirst,
+              rowlength,
+              skiprows,
+              skippixels,
+              alignment);
+  }
+
+  public int  glutBitmapWidth    (int font, char character) {
+    BitmapFontRec fontinfo = getBitmapFont(font);
+    int c = character & 0xFFFF;
+    if (c < fontinfo.first || c >= fontinfo.first + fontinfo.num_chars)
+      return 0;
+    BitmapCharRec ch = fontinfo.ch[c - fontinfo.first];
+    if (ch != null)
+      return (int) ch.advance;
+    else
+      return 0;
+  }
+
+  public void glutStrokeCharacter(GL gl, int font, char character) {
+    StrokeFontRec fontinfo = getStrokeFont(font);
+    int c = character & 0xFFFF;
+    if (c < 0 || c >= fontinfo.num_chars)
+      return;
+    StrokeCharRec ch = fontinfo.ch[c];
+    if (ch != null) {
+      for (int i = 0; i < ch.num_strokes; i++) {
+        StrokeRec stroke = ch.stroke[i];
+        gl.glBegin(GL.GL_LINE_STRIP);
+        for (int j = 0; j < stroke.num_coords; j++) {
+          CoordRec coord = stroke.coord[j];
+          gl.glVertex2f(coord.x, coord.y);
+        }
+        gl.glEnd();
+      }
+      gl.glTranslatef(ch.right, 0.0f, 0.0f);
+    }
+  }
+
+  public void glutStrokeString(GL gl, int font, String string) {
+    StrokeFontRec fontinfo = getStrokeFont(font);
+    int len = string.length();
+    for (int pos = 0; pos < len; pos++) {
+      int c = string.charAt(pos) & 0xFFFF;
+      if (c < 0 || c >= fontinfo.num_chars)
+        continue;
+      StrokeCharRec ch = fontinfo.ch[c];
+      if (ch != null) {
+        for (int i = 0; i < ch.num_strokes; i++) {
+          StrokeRec stroke = ch.stroke[i];
+          gl.glBegin(GL.GL_LINE_STRIP);
+          for (int j = 0; j < stroke.num_coords; j++) {
+            CoordRec coord = stroke.coord[j];
+            gl.glVertex2f(coord.x, coord.y);
+          }
+          gl.glEnd();
+        }
+        gl.glTranslatef(ch.right, 0.0f, 0.0f);
+      }
+    }
+  }
+
+  public int  glutStrokeWidth    (int font, char character) {
+    StrokeFontRec fontinfo = getStrokeFont(font);
+    int c = character & 0xFFFF;
+    if (c < 0 || c >= fontinfo.num_chars)
+      return 0;
+    StrokeCharRec ch = fontinfo.ch[c];
+    if (ch != null)
+      return (int) ch.right;
+    else
+      return 0;
+  }
+
+  public int  glutBitmapLength   (int font, String string) {
+    BitmapFontRec fontinfo = getBitmapFont(font);
+    int length = 0;
+    int len = string.length();
+    for (int pos = 0; pos < len; pos++) {
+      int c = string.charAt(pos) & 0xFFFF;
+      if (c >= fontinfo.first && c < fontinfo.first + fontinfo.num_chars) {
+        BitmapCharRec ch = fontinfo.ch[c - fontinfo.first];
+        if (ch != null)
+          length += ch.advance;
+      }
+    }
+    return length;
+  }
+
+  public int  glutStrokeLength   (int font, String string) {
+    StrokeFontRec fontinfo = getStrokeFont(font);
+    int length = 0;
+    int len = string.length();
+    for (int i = 0; i < len; i++) {
+      char c = string.charAt(i);
+      if (c >= 0 && c < fontinfo.num_chars) {
+        StrokeCharRec ch = fontinfo.ch[c];
+        if (ch != null)
+          length += ch.right;
+      }
+    }
+    return length;
+  }
+
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  //
+
+  //----------------------------------------------------------------------
+  // Shape implementation
+  //
+
+  private GLUquadric quadObj;
+  private void quadObjInit(GLU glu) {
+    if (quadObj == null) {
+      quadObj = glu.gluNewQuadric();
+    }
+    if (quadObj == null) {
+      throw new GLException("Out of memory");
+    }
+  }
+
+  private static void doughnut(GL gl, double r, double R, int nsides, int rings) {
+    int i, j;
+    float theta, phi, theta1;
+    float cosTheta, sinTheta;
+    float cosTheta1, sinTheta1;
+    float ringDelta, sideDelta;
+
+    ringDelta = (float) (2.0 * Math.PI / rings);
+    sideDelta = (float) (2.0 * Math.PI / nsides);
+
+    theta = 0.0f;
+    cosTheta = 1.0f;
+    sinTheta = 0.0f;
+    for (i = rings - 1; i >= 0; i--) {
+      theta1 = theta + ringDelta;
+      cosTheta1 = (float) Math.cos(theta1);
+      sinTheta1 = (float) Math.sin(theta1);
+      gl.glBegin(GL.GL_QUAD_STRIP);
+      phi = 0.0f;
+      for (j = nsides; j >= 0; j--) {
+        float cosPhi, sinPhi, dist;
+
+        phi += sideDelta;
+        cosPhi = (float) Math.cos(phi);
+        sinPhi = (float) Math.sin(phi);
+        dist = (float) (R + r * cosPhi);
+
+        gl.glNormal3f(cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
+        gl.glVertex3f(cosTheta1 * dist,   -sinTheta1 * dist,   (float) r * sinPhi);
+        gl.glNormal3f(cosTheta  * cosPhi, -sinTheta  * cosPhi, sinPhi);
+        gl.glVertex3f(cosTheta  * dist,   -sinTheta  * dist,   (float) r * sinPhi);
+      }
+      gl.glEnd();
+      theta = theta1;
+      cosTheta = cosTheta1;
+      sinTheta = sinTheta1;
+    }
+  }
+
+  private static final float[][] boxNormals = {
+    {-1.0f, 0.0f, 0.0f},
+    {0.0f, 1.0f, 0.0f},
+    {1.0f, 0.0f, 0.0f},
+    {0.0f, -1.0f, 0.0f},
+    {0.0f, 0.0f, 1.0f},
+    {0.0f, 0.0f, -1.0f}
+  };
+  private static final int[][] boxFaces = {
+    {0, 1, 2, 3},
+    {3, 2, 6, 7},
+    {7, 6, 5, 4},
+    {4, 5, 1, 0},
+    {5, 6, 2, 1},
+    {7, 4, 0, 3}
+  };
+  private float[][] boxVertices;
+  private void drawBox(GL gl, float size, int type) {
+    if (boxVertices == null) {
+      float[][] v = new float[8][];
+      for (int i = 0; i < 8; i++) {
+        v[i] = new float[3];
+      }
+      v[0][0] = v[1][0] = v[2][0] = v[3][0] = -size / 2;
+      v[4][0] = v[5][0] = v[6][0] = v[7][0] = size / 2;
+      v[0][1] = v[1][1] = v[4][1] = v[5][1] = -size / 2;
+      v[2][1] = v[3][1] = v[6][1] = v[7][1] = size / 2;
+      v[0][2] = v[3][2] = v[4][2] = v[7][2] = -size / 2;
+      v[1][2] = v[2][2] = v[5][2] = v[6][2] = size / 2;
+      boxVertices = v;
+    }
+    float[][] v = boxVertices;
+    float[][] n = boxNormals;
+    int[][] faces = boxFaces;
+    for (int i = 5; i >= 0; i--) {
+      gl.glBegin(type);
+      gl.glNormal3fv(n[i]);
+      gl.glVertex3fv(v[faces[i][0]]);
+      gl.glVertex3fv(v[faces[i][1]]);
+      gl.glVertex3fv(v[faces[i][2]]);
+      gl.glVertex3fv(v[faces[i][3]]);
+      gl.glEnd();
+    }
+  }
+
+  private float[][] dodec;
+
+  private void initDodecahedron() {
+    dodec = new float[20][];
+    for (int i = 0; i < dodec.length; i++) {
+      dodec[i] = new float[3];
+    }
+
+    float alpha, beta;
+
+    alpha = (float) Math.sqrt(2.0f / (3.0f + Math.sqrt(5.0)));
+    beta = 1.0f + (float) Math.sqrt(6.0 / (3.0 + Math.sqrt(5.0)) -
+                                    2.0 + 2.0 * Math.sqrt(2.0 / (3.0 + Math.sqrt(5.0))));
+    dodec[0][0] = -alpha; dodec[0][1] = 0; dodec[0][2] = beta;
+    dodec[1][0] = alpha; dodec[1][1] = 0; dodec[1][2] = beta;
+    dodec[2][0] = -1; dodec[2][1] = -1; dodec[2][2] = -1;
+    dodec[3][0] = -1; dodec[3][1] = -1; dodec[3][2] = 1;
+    dodec[4][0] = -1; dodec[4][1] = 1; dodec[4][2] = -1;
+    dodec[5][0] = -1; dodec[5][1] = 1; dodec[5][2] = 1;
+    dodec[6][0] = 1; dodec[6][1] = -1; dodec[6][2] = -1;
+    dodec[7][0] = 1; dodec[7][1] = -1; dodec[7][2] = 1;
+    dodec[8][0] = 1; dodec[8][1] = 1; dodec[8][2] = -1;
+    dodec[9][0] = 1; dodec[9][1] = 1; dodec[9][2] = 1;
+    dodec[10][0] = beta; dodec[10][1] = alpha; dodec[10][2] = 0;
+    dodec[11][0] = beta; dodec[11][1] = -alpha; dodec[11][2] = 0;
+    dodec[12][0] = -beta; dodec[12][1] = alpha; dodec[12][2] = 0;
+    dodec[13][0] = -beta; dodec[13][1] = -alpha; dodec[13][2] = 0;
+    dodec[14][0] = -alpha; dodec[14][1] = 0; dodec[14][2] = -beta;
+    dodec[15][0] = alpha; dodec[15][1] = 0; dodec[15][2] = -beta;
+    dodec[16][0] = 0; dodec[16][1] = beta; dodec[16][2] = alpha;
+    dodec[17][0] = 0; dodec[17][1] = beta; dodec[17][2] = -alpha;
+    dodec[18][0] = 0; dodec[18][1] = -beta; dodec[18][2] = alpha;
+    dodec[19][0] = 0; dodec[19][1] = -beta; dodec[19][2] = -alpha;
+  }
+
+  private static void diff3(float[] a, float[] b, float[] c) {
+    c[0] = a[0] - b[0];
+    c[1] = a[1] - b[1];
+    c[2] = a[2] - b[2];
+  }
+
+  private static void crossprod(float[] v1, float[] v2, float[] prod) {
+    float[] p = new float[3];         /* in case prod == v1 or v2 */
+
+    p[0] = v1[1] * v2[2] - v2[1] * v1[2];
+    p[1] = v1[2] * v2[0] - v2[2] * v1[0];
+    p[2] = v1[0] * v2[1] - v2[0] * v1[1];
+    prod[0] = p[0];
+    prod[1] = p[1];
+    prod[2] = p[2];
+  }
+
+  private static void normalize(float[] v) {
+    float d;
+
+    d = (float) Math.sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
+    if (d == 0.0) {
+      v[0] = d = 1.0f;
+    }
+    d = 1 / d;
+    v[0] *= d;
+    v[1] *= d;
+    v[2] *= d;
+  }
+
+  private void pentagon(GL gl, int a, int b, int c, int d, int e, int shadeType) {
+    float[] n0 = new float[3];
+    float[] d1 = new float[3];
+    float[] d2 = new float[3];
+
+    diff3(dodec[a], dodec[b], d1);
+    diff3(dodec[b], dodec[c], d2);
+    crossprod(d1, d2, n0);
+    normalize(n0);
+
+    gl.glBegin(shadeType);
+    gl.glNormal3fv(n0);
+    gl.glVertex3fv(dodec[a]);
+    gl.glVertex3fv(dodec[b]);
+    gl.glVertex3fv(dodec[c]);
+    gl.glVertex3fv(dodec[d]);
+    gl.glVertex3fv(dodec[e]);
+    gl.glEnd();
+  }
+
+  private void dodecahedron(GL gl, int type) {
+    if (dodec == null) {
+      initDodecahedron();
+    }
+    pentagon(gl, 0, 1, 9, 16, 5, type);
+    pentagon(gl, 1, 0, 3, 18, 7, type);
+    pentagon(gl, 1, 7, 11, 10, 9, type);
+    pentagon(gl, 11, 7, 18, 19, 6, type);
+    pentagon(gl, 8, 17, 16, 9, 10, type);
+    pentagon(gl, 2, 14, 15, 6, 19, type);
+    pentagon(gl, 2, 13, 12, 4, 14, type);
+    pentagon(gl, 2, 19, 18, 3, 13, type);
+    pentagon(gl, 3, 0, 5, 12, 13, type);
+    pentagon(gl, 6, 15, 8, 10, 11, type);
+    pentagon(gl, 4, 17, 8, 15, 14, type);
+    pentagon(gl, 4, 12, 5, 16, 17, type);
+  }
+
+  private static void recorditem(GL gl, float[] n1, float[] n2, float[] n3, int shadeType) {
+    float[] q0 = new float[3];
+    float[] q1 = new float[3];
+
+    diff3(n1, n2, q0);
+    diff3(n2, n3, q1);
+    crossprod(q0, q1, q1);
+    normalize(q1);
+
+    gl.glBegin(shadeType);
+    gl.glNormal3fv(q1);
+    gl.glVertex3fv(n1);
+    gl.glVertex3fv(n2);
+    gl.glVertex3fv(n3);
+    gl.glEnd();
+  }
+
+  private static void subdivide(GL gl, float[] v0, float[] v1, float[] v2, int shadeType) {
+    int depth;
+    float[] w0 = new float[3];
+    float[] w1 = new float[3];
+    float[] w2 = new float[3];
+    float l;
+    int i, j, k, n;
+
+    depth = 1;
+    for (i = 0; i < depth; i++) {
+      for (j = 0; i + j < depth; j++) {
+        k = depth - i - j;
+        for (n = 0; n < 3; n++) {
+          w0[n] = (i * v0[n] + j * v1[n] + k * v2[n]) / depth;
+          w1[n] = ((i + 1) * v0[n] + j * v1[n] + (k - 1) * v2[n])
+            / depth;
+          w2[n] = (i * v0[n] + (j + 1) * v1[n] + (k - 1) * v2[n])
+            / depth;
+        }
+        l = (float) Math.sqrt(w0[0] * w0[0] + w0[1] * w0[1] + w0[2] * w0[2]);
+        w0[0] /= l;
+        w0[1] /= l;
+        w0[2] /= l;
+        l = (float) Math.sqrt(w1[0] * w1[0] + w1[1] * w1[1] + w1[2] * w1[2]);
+        w1[0] /= l;
+        w1[1] /= l;
+        w1[2] /= l;
+        l = (float) Math.sqrt(w2[0] * w2[0] + w2[1] * w2[1] + w2[2] * w2[2]);
+        w2[0] /= l;
+        w2[1] /= l;
+        w2[2] /= l;
+        recorditem(gl, w1, w0, w2, shadeType);
+      }
+    }
+  }
+
+  private static void drawtriangle(GL gl, int i, float[][] data, int[][] ndx, int shadeType) {
+    float[] x0 = data[ndx[i][0]];
+    float[] x1 = data[ndx[i][1]];
+    float[] x2 = data[ndx[i][2]];
+    subdivide(gl, x0, x1, x2, shadeType);
+  }
+
+  /* octahedron data: The octahedron produced is centered at the
+     origin and has radius 1.0 */
+  private static final float[][] odata =
+  {
+    {1.0f, 0.0f, 0.0f},
+    {-1.0f, 0.0f, 0.0f},
+    {0.0f, 1.0f, 0.0f},
+    {0.0f, -1.0f, 0.0f},
+    {0.0f, 0.0f, 1.0f},
+    {0.0f, 0.0f, -1.0f}
+  };
+
+  private static final int[][] ondex =
+  {
+    {0, 4, 2},
+    {1, 2, 4},
+    {0, 3, 4},
+    {1, 4, 3},
+    {0, 2, 5},
+    {1, 5, 2},
+    {0, 5, 3},
+    {1, 3, 5}
+  };
+
+  private static void octahedron(GL gl, int shadeType) {
+    int i;
+
+    for (i = 7; i >= 0; i--) {
+      drawtriangle(gl, i, odata, ondex, shadeType);
+    }
+  }
+
+  /* icosahedron data: These numbers are rigged to make an
+     icosahedron of radius 1.0 */
+
+  private static final float X = .525731112119133606f;
+  private static final float Z = .850650808352039932f;
+
+  private static final float[][] idata =
+  {
+    {-X, 0, Z},
+    {X, 0, Z},
+    {-X, 0, -Z},
+    {X, 0, -Z},
+    {0, Z, X},
+    {0, Z, -X},
+    {0, -Z, X},
+    {0, -Z, -X},
+    {Z, X, 0},
+    {-Z, X, 0},
+    {Z, -X, 0},
+    {-Z, -X, 0}
+  };
+
+  private static final int[][] index =
+  {
+    {0, 4, 1},
+    {0, 9, 4},
+    {9, 5, 4},
+    {4, 5, 8},
+    {4, 8, 1},
+    {8, 10, 1},
+    {8, 3, 10},
+    {5, 3, 8},
+    {5, 2, 3},
+    {2, 7, 3},
+    {7, 10, 3},
+    {7, 6, 10},
+    {7, 11, 6},
+    {11, 0, 6},
+    {0, 1, 6},
+    {6, 1, 10},
+    {9, 0, 11},
+    {9, 11, 2},
+    {9, 2, 5},
+    {7, 2, 11},
+  };
+
+  private static void icosahedron(GL gl, int shadeType) {
+    int i;
+
+    for (i = 19; i >= 0; i--) {
+      drawtriangle(gl, i, idata, index, shadeType);
+    }
+  }
+
+  /* tetrahedron data: */
+
+  private static final float T = 1.73205080756887729f;
+
+  private static final float[][] tdata =
+  {
+    {T, T, T},
+    {T, -T, -T},
+    {-T, T, -T},
+    {-T, -T, T}
+  };
+
+  private static final int[][] tndex =
+  {
+    {0, 1, 3},
+    {2, 1, 0},
+    {3, 2, 0},
+    {1, 2, 3}
+  };
+
+  private static final void tetrahedron(GL gl, int shadeType) {
+    for (int i = 3; i >= 0; i--)
+      drawtriangle(gl, i, tdata, tndex, shadeType);
+  }
+
+  //----------------------------------------------------------------------
+  // Font implementation
+  //
+
+  private static void bitmapCharacterImpl(GL gl, int font, char cin) {
+    BitmapFontRec fontinfo = getBitmapFont(font);
+    int c = cin & 0xFFFF;
+    if (c < fontinfo.first ||
+        c >= fontinfo.first + fontinfo.num_chars)
+      return;
+    BitmapCharRec ch = fontinfo.ch[c - fontinfo.first];
+    if (ch != null) {
+      gl.glBitmap(ch.width, ch.height, ch.xorig, ch.yorig,
+                  ch.advance, 0, ch.bitmap);
+    }
+  }
+
+  private static final BitmapFontRec[] bitmapFonts = new BitmapFontRec[9];
+  private static final StrokeFontRec[] strokeFonts = new StrokeFontRec[9];
+
+  private static BitmapFontRec getBitmapFont(int font) {
+    BitmapFontRec rec = bitmapFonts[font];
+    if (rec == null) {
+      switch (font) {
+        case BITMAP_9_BY_15:
+          rec = GLUTBitmap9x15.glutBitmap9By15;
+          break;
+        case BITMAP_8_BY_13:
+          rec = GLUTBitmap8x13.glutBitmap8By13;
+          break;
+        case BITMAP_TIMES_ROMAN_10:
+          rec = GLUTBitmapTimesRoman10.glutBitmapTimesRoman10;
+          break;
+        case BITMAP_TIMES_ROMAN_24:
+          rec = GLUTBitmapTimesRoman24.glutBitmapTimesRoman24;
+          break;
+        case BITMAP_HELVETICA_10:
+          rec = GLUTBitmapHelvetica10.glutBitmapHelvetica10;
+          break;
+        case BITMAP_HELVETICA_12:
+          rec = GLUTBitmapHelvetica12.glutBitmapHelvetica12;
+          break;
+        case BITMAP_HELVETICA_18:
+          rec = GLUTBitmapHelvetica18.glutBitmapHelvetica18;
+          break;
+        default:
+          throw new GLException("Unknown bitmap font number " + font);
+      }
+      bitmapFonts[font] = rec;
+    }
+    return rec;
+  }
+
+  private static StrokeFontRec getStrokeFont(int font) {
+    StrokeFontRec rec = strokeFonts[font];
+    if (rec == null) {
+      switch (font) {
+        case STROKE_ROMAN:
+          rec = GLUTStrokeRoman.glutStrokeRoman;
+          break;
+        case STROKE_MONO_ROMAN:
+          rec = GLUTStrokeMonoRoman.glutStrokeMonoRoman;
+          break;
+        default:
+          throw new GLException("Unknown stroke font number " + font);
+      }
+    }
+    return rec;
+  }
+
+  private static void beginBitmap(GL gl,
+                                  int[] swapbytes,
+                                  int[] lsbfirst,
+                                  int[] rowlength,
+                                  int[] skiprows,
+                                  int[] skippixels,
+                                  int[] alignment) {
+    gl.glGetIntegerv(GL.GL_UNPACK_SWAP_BYTES, swapbytes);
+    gl.glGetIntegerv(GL.GL_UNPACK_LSB_FIRST, lsbfirst);
+    gl.glGetIntegerv(GL.GL_UNPACK_ROW_LENGTH, rowlength);
+    gl.glGetIntegerv(GL.GL_UNPACK_SKIP_ROWS, skiprows);
+    gl.glGetIntegerv(GL.GL_UNPACK_SKIP_PIXELS, skippixels);
+    gl.glGetIntegerv(GL.GL_UNPACK_ALIGNMENT, alignment);
+    /* Little endian machines (DEC Alpha for example) could
+       benefit from setting GL_UNPACK_LSB_FIRST to GL_TRUE
+       instead of GL_FALSE, but this would require changing the
+       generated bitmaps too. */
+    gl.glPixelStorei(GL.GL_UNPACK_SWAP_BYTES, GL.GL_FALSE);
+    gl.glPixelStorei(GL.GL_UNPACK_LSB_FIRST, GL.GL_FALSE);
+    gl.glPixelStorei(GL.GL_UNPACK_ROW_LENGTH, 0);
+    gl.glPixelStorei(GL.GL_UNPACK_SKIP_ROWS, 0);
+    gl.glPixelStorei(GL.GL_UNPACK_SKIP_PIXELS, 0);
+    gl.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, 1);
+  }
+
+  private static void endBitmap(GL gl,
+                                int[] swapbytes,
+                                int[] lsbfirst,
+                                int[] rowlength,
+                                int[] skiprows,
+                                int[] skippixels,
+                                int[] alignment) {
+    /* Restore saved modes. */
+    gl.glPixelStorei(GL.GL_UNPACK_SWAP_BYTES, swapbytes[0]);
+    gl.glPixelStorei(GL.GL_UNPACK_LSB_FIRST, lsbfirst[0]);
+    gl.glPixelStorei(GL.GL_UNPACK_ROW_LENGTH, rowlength[0]);
+    gl.glPixelStorei(GL.GL_UNPACK_SKIP_ROWS, skiprows[0]);
+    gl.glPixelStorei(GL.GL_UNPACK_SKIP_PIXELS, skippixels[0]);
+    gl.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, alignment[0]);
+  }
+}