Misc Rename/Reloc; GLArrayData*/PMVMatrix enhancments; Test fixes/adds (GearsES1/ES2)

rename/reloc:
 - javax.media.nativewindow.util:
      DimensionReadOnly -> DimensionImmutable
      PointReadOnly -> PointImmutable
      RectangleReadOnly -> RectangleImmutable

   unified 'immutable' name as used within jogamp already

 - remove array handler from public API
   com.jogamp.opengl.util.GL*ArrayHandler -> jogamp.opengl.util.GL*ArrayHandler

 - GLArrayData: Clarify method names
     getComponentNumber() -> getComponentCount()
     getComponentSize() -> getComponentSizeInBytes()
     getElementNumber() -> getElementCount()
     getByteSize() -> getSizeInBytes()

- FixedFuncPipeline: Moved def. array names to GLPointerFuncUtil

enhancement:
  - GLArrayDataServer: Add support for interleaved arrays/VBO
  - GLArrayData*.createFixed(..) remove 'name' argument (non sense for fixed function)
  - PMVMatrix:
    - one nio buffer
    - removed 'Pmv' multiplied matrix
    - removed 2x2 cut down 'Mvi' normal matrix (use 4x4 Mvi)
    -
tests:
 - RedSquare -> RedSquareES1/RedSquareES2
 - Gears ES1 fixed + ES2 added. Both work properly and share common Gears VBO construction
 - Added TestMapBuffer01NEWT, testing glMapBuffer

5 files changed, 18 insertions, 440 deletions

diff --git a/src/newt/classes/com/jogamp/newt/ScreenMode.java b/src/newt/classes/com/jogamp/newt/ScreenMode.java
index 2a05d842e..414e2fb9c 100644
--- a/src/newt/classes/com/jogamp/newt/ScreenMode.java
+++ b/src/newt/classes/com/jogamp/newt/ScreenMode.java
@@ -28,7 +28,7 @@
 
 package com.jogamp.newt;
 
-import javax.media.nativewindow.util.DimensionReadOnly;
+import javax.media.nativewindow.util.DimensionImmutable;
 
 import com.jogamp.newt.util.MonitorMode;
 
@@ -206,7 +206,7 @@ public class ScreenMode implements Cloneable {
     }
     
     private final int getRotatedWH(boolean width) {
-        final DimensionReadOnly d = getMonitorMode().getSurfaceSize().getResolution();
+        final DimensionImmutable d = getMonitorMode().getSurfaceSize().getResolution();
         final boolean swap = ScreenMode.ROTATE_90 == rotation || ScreenMode.ROTATE_270 == rotation ;
         if ( (  width &&  swap ) || ( !width && !swap ) ) {
             return d.getHeight();
diff --git a/src/newt/classes/com/jogamp/newt/util/MonitorMode.java b/src/newt/classes/com/jogamp/newt/util/MonitorMode.java
index fb2d0ceb5..69dc584d3 100644
--- a/src/newt/classes/com/jogamp/newt/util/MonitorMode.java
+++ b/src/newt/classes/com/jogamp/newt/util/MonitorMode.java
@@ -33,16 +33,16 @@ import javax.media.nativewindow.util.*;
 /** Immutable MonitorMode Class, consisting of it's read only components:<br>
  * <ul>
  *  <li>{@link javax.media.nativewindow.util.SurfaceSize} surface memory size</li>
- *  <li>{@link javax.media.nativewindow.util.DimensionReadOnly} size in [mm]</li>
+ *  <li>{@link javax.media.nativewindow.util.DimensionImmutable} size in [mm]</li>
  *  <li><code>refresh rate</code></li>
  * </ul>
  */
 public class MonitorMode  implements Cloneable {
     SurfaceSize surfaceSize;
-    DimensionReadOnly screenSizeMM; // in [mm]
+    DimensionImmutable screenSizeMM; // in [mm]
     int refreshRate;
 
-    public MonitorMode(SurfaceSize surfaceSize, DimensionReadOnly screenSizeMM, int refreshRate) {
+    public MonitorMode(SurfaceSize surfaceSize, DimensionImmutable screenSizeMM, int refreshRate) {
         if(null==surfaceSize || refreshRate<=0) {
             throw new IllegalArgumentException("surfaceSize must be set and refreshRate greater 0");
         }
@@ -63,7 +63,7 @@ public class MonitorMode  implements Cloneable {
         return surfaceSize;
     }
 
-    public final DimensionReadOnly getScreenSizeMM() {
+    public final DimensionImmutable getScreenSizeMM() {
         return screenSizeMM;
     }
 
diff --git a/src/newt/classes/com/jogamp/newt/util/ScreenModeUtil.java b/src/newt/classes/com/jogamp/newt/util/ScreenModeUtil.java
index 9c4993f1d..6986e3657 100644
--- a/src/newt/classes/com/jogamp/newt/util/ScreenModeUtil.java
+++ b/src/newt/classes/com/jogamp/newt/util/ScreenModeUtil.java
@@ -33,7 +33,7 @@ import com.jogamp.newt.ScreenMode;
 import java.util.ArrayList;
 import java.util.List;
 import javax.media.nativewindow.util.Dimension;
-import javax.media.nativewindow.util.DimensionReadOnly;
+import javax.media.nativewindow.util.DimensionImmutable;
 import javax.media.nativewindow.util.SurfaceSize;
 
 /**
@@ -84,7 +84,7 @@ public class ScreenModeUtil {
      * @param resolution
      * @return modes with nearest resolution, or matching ones
      */
-    public static List/*<ScreenMode>*/ filterByResolution(List/*<ScreenMode>*/ screenModes, DimensionReadOnly resolution) {
+    public static List/*<ScreenMode>*/ filterByResolution(List/*<ScreenMode>*/ screenModes, DimensionImmutable resolution) {
         if(null==screenModes || screenModes.size()==0) {
             return null;
         }
@@ -94,7 +94,7 @@ public class ScreenModeUtil {
 
         for (int i=0; null!=screenModes && i<screenModes.size(); i++) {
             ScreenMode sm = (ScreenMode)screenModes.get(i);
-            DimensionReadOnly res = sm.getMonitorMode().getSurfaceSize().getResolution();
+            DimensionImmutable res = sm.getMonitorMode().getSurfaceSize().getResolution();
             int dsq = Math.abs(resolution_sq - res.getHeight()*res.getWidth());
             if(dsq<sm_dsq) {
                 sm_dsq = dsq;
@@ -216,19 +216,19 @@ public class ScreenModeUtil {
     }
 
     /** WARNING: must be synchronized with ScreenMode.h, native implementation */
-    public static DimensionReadOnly streamInResolution(int[] resolutionProperties, int offset) {
+    public static DimensionImmutable streamInResolution(int[] resolutionProperties, int offset) {
         Dimension resolution = new Dimension(resolutionProperties[offset++], resolutionProperties[offset++]);
         return resolution;
     }
 
     /** WARNING: must be synchronized with ScreenMode.h, native implementation */
-    public static SurfaceSize streamInSurfaceSize(DimensionReadOnly resolution, int[] sizeProperties, int offset) {
+    public static SurfaceSize streamInSurfaceSize(DimensionImmutable resolution, int[] sizeProperties, int offset) {
         SurfaceSize surfaceSize = new SurfaceSize(resolution, sizeProperties[offset++]);
         return surfaceSize;
     }
 
     /** WARNING: must be synchronized with ScreenMode.h, native implementation */
-    public static MonitorMode streamInMonitorMode(SurfaceSize surfaceSize, DimensionReadOnly screenSizeMM, int[] monitorProperties, int offset) {
+    public static MonitorMode streamInMonitorMode(SurfaceSize surfaceSize, DimensionImmutable screenSizeMM, int[] monitorProperties, int offset) {
         int refreshRate = monitorProperties[offset++];
         return new MonitorMode(surfaceSize, screenSizeMM, refreshRate);
     }
@@ -288,10 +288,10 @@ public class ScreenModeUtil {
             throw new RuntimeException("properties array too short, should be >= "+NUM_SCREEN_MODE_PROPERTIES_ALL+", is "+(modeProperties.length-offset));
         }
         offset++;
-        DimensionReadOnly resolution = ScreenModeUtil.streamInResolution(modeProperties, offset);
+        DimensionImmutable resolution = ScreenModeUtil.streamInResolution(modeProperties, offset);
         offset += ScreenModeUtil.NUM_RESOLUTION_PROPERTIES;
         if(null!=resolutionPool) {
-            resolution = (DimensionReadOnly) resolutionPool.getOrAdd(resolution);
+            resolution = (DimensionImmutable) resolutionPool.getOrAdd(resolution);
         }
 
         SurfaceSize surfaceSize = ScreenModeUtil.streamInSurfaceSize(resolution, modeProperties, offset);
@@ -300,10 +300,10 @@ public class ScreenModeUtil {
             surfaceSize = (SurfaceSize) surfaceSizePool.getOrAdd(surfaceSize);
         }
 
-        DimensionReadOnly screenSizeMM = ScreenModeUtil.streamInResolution(modeProperties, offset);
+        DimensionImmutable screenSizeMM = ScreenModeUtil.streamInResolution(modeProperties, offset);
         offset += ScreenModeUtil.NUM_RESOLUTION_PROPERTIES;
         if(null!=screenSizeMMPool) {
-            screenSizeMM = (DimensionReadOnly) screenSizeMMPool.getOrAdd(screenSizeMM);
+            screenSizeMM = (DimensionImmutable) screenSizeMMPool.getOrAdd(screenSizeMM);
         }
 
         MonitorMode monitorMode = ScreenModeUtil.streamInMonitorMode(surfaceSize, screenSizeMM, modeProperties, offset);
diff --git a/src/newt/classes/jogamp/newt/WindowImpl.java b/src/newt/classes/jogamp/newt/WindowImpl.java
index e03c4553e..54a8c2bb8 100644
--- a/src/newt/classes/jogamp/newt/WindowImpl.java
+++ b/src/newt/classes/jogamp/newt/WindowImpl.java
@@ -64,7 +64,7 @@ import javax.media.nativewindow.NativeWindow;
 import javax.media.nativewindow.NativeWindowException;
 import javax.media.nativewindow.NativeWindowFactory;
 import javax.media.nativewindow.SurfaceUpdatedListener;
-import javax.media.nativewindow.util.DimensionReadOnly;
+import javax.media.nativewindow.util.DimensionImmutable;
 import javax.media.nativewindow.util.Insets;
 import javax.media.nativewindow.util.Point;
 import javax.media.nativewindow.util.Rectangle;
@@ -1527,7 +1527,7 @@ public abstract class WindowImpl implements Window, NEWTEventConsumer
             }
 
             if(success) {
-                DimensionReadOnly screenSize = sm.getMonitorMode().getSurfaceSize().getResolution();
+                DimensionImmutable screenSize = sm.getMonitorMode().getSurfaceSize().getResolution();
                 if ( getHeight() > screenSize.getHeight()  ||
                      getWidth() > screenSize.getWidth() ) {
                     setSize(screenSize.getWidth(), screenSize.getHeight());
diff --git a/src/newt/classes/jogamp/newt/driver/android/test/GearsGL2ES1.java b/src/newt/classes/jogamp/newt/driver/android/test/GearsGL2ES1.java
deleted file mode 100644
index 1a4e16112..000000000
--- a/src/newt/classes/jogamp/newt/driver/android/test/GearsGL2ES1.java
+++ /dev/null
@@ -1,422 +0,0 @@
-
-package jogamp.newt.driver.android.test;
-
-import javax.media.opengl.GL;
-import javax.media.opengl.GL2ES1;
-import javax.media.opengl.GLAutoDrawable;
-import javax.media.opengl.GLEventListener;
-import javax.media.opengl.GLProfile;
-import com.jogamp.opengl.util.ImmModeSink;
-
-import com.jogamp.newt.Window;
-import com.jogamp.newt.event.KeyAdapter;
-import com.jogamp.newt.event.KeyEvent;
-import com.jogamp.newt.event.KeyListener;
-import com.jogamp.newt.event.MouseAdapter;
-import com.jogamp.newt.event.MouseEvent;
-import com.jogamp.newt.event.MouseListener;
-
-/**
- * Gears.java <BR>
- * author: Brian Paul (converted to Java by Ron Cemer and Sven Gothel) <P>
- *
- * This version is equal to Brian Paul's version 1.2 1999/10/21
- */
-
-public class GearsGL2ES1 implements GLEventListener {
-  private final float pos[] = { 5.0f, 5.0f, 10.0f, 0.0f };
-  private final float red[] = { 0.8f, 0.1f, 0.0f, 0.7f };
-  private final float green[] = { 0.0f, 0.8f, 0.2f, 0.7f };
-  private final float blue[] = { 0.2f, 0.2f, 1.0f, 0.7f };
-
-  private float view_rotx = 20.0f, view_roty = 30.0f, view_rotz = 0.0f;
-  private GearBuffers gear1=null, gear2=null, gear3=null;
-  private float angle = 0.0f;
-  private int swapInterval;
-
-  private int prevMouseX, prevMouseY;
-
-  public GearsGL2ES1(int swapInterval) {
-    this.swapInterval = swapInterval;
-  }
-
-  public GearsGL2ES1() {
-    this.swapInterval = 1;
-  }
-  
-  public void init(GLAutoDrawable drawable) {
-    System.err.println("Gears: Init: "+drawable);
-    // Use debug pipeline
-    // drawable.setGL(new DebugGL(drawable.getGL()));
-
-    GL _gl = drawable.getGL();
-    // GL2ES1 gl = FixedFuncUtil.wrapFixedFuncEmul(_gl /*, true*/);
-    GL2ES1 gl = _gl.getGL2ES1();
-    
-    System.err.println("Chosen GLCapabilities: " + drawable.getChosenGLCapabilities());
-    System.err.println("INIT GL IS: " + gl.getClass().getName());
-    System.err.println("GL_VENDOR: " + gl.glGetString(GL.GL_VENDOR));
-    System.err.println("GL_RENDERER: " + gl.glGetString(GL.GL_RENDERER));
-    System.err.println("GL_VERSION: " + gl.glGetString(GL.GL_VERSION));
-
-    gl.glLightfv(GL2ES1.GL_LIGHT0, GL2ES1.GL_POSITION, pos, 0);
-    gl.glEnable(GL.GL_CULL_FACE);
-    gl.glEnable(GL2ES1.GL_LIGHTING);
-    gl.glEnable(GL2ES1.GL_LIGHT0);
-    gl.glEnable(GL2ES1.GL_DEPTH_TEST);
-            
-    /* make the gears */
-    if(null == gear1) {
-        gear1 = gear(gl, 1.0f, 4.0f, 1.0f, 20, 0.7f);
-        System.err.println("gear1 created: "+gear1);
-    } else {
-        System.err.println("gear1 reused: "+gear1);
-    }
-            
-    if(null == gear2) {
-        gear2 = gear(gl, 0.5f, 2.0f, 2.0f, 10, 0.7f);
-        System.err.println("gear2 created: "+gear2);
-    } else {
-        System.err.println("gear2 reused: "+gear2);
-    }
-            
-    if(null == gear3) {
-        gear3 = gear(gl, 1.3f, 2.0f, 0.5f, 10, 0.7f);
-        System.err.println("gear3 created: "+gear3);
-    } else {
-        System.err.println("gear3 reused: "+gear3);
-    }
-            
-    gl.glEnable(GL2ES1.GL_NORMALIZE);
-                
-    // MouseListener gearsMouse = new TraceMouseAdapter(new GearsMouseAdapter());
-    MouseListener gearsMouse = new GearsMouseAdapter();    
-    KeyListener gearsKeys = new GearsKeyAdapter();
-
-    if (drawable instanceof Window) {
-        Window window = (Window) drawable;
-        window.addMouseListener(gearsMouse);
-        window.addKeyListener(gearsKeys);
-    } /* else if (GLProfile.isAWTAvailable() && drawable instanceof java.awt.Component) {
-        java.awt.Component comp = (java.awt.Component) drawable;
-        new AWTMouseAdapter(gearsMouse).addTo(comp);
-        new AWTKeyAdapter(gearsKeys).addTo(comp);
-    } */
-  }
-    
-  public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
-    System.err.println("Gears: Reshape "+x+"/"+y+" "+width+"x"+height);
-    GL2ES1 gl = drawable.getGL().getGL2ES1();
-
-    gl.setSwapInterval(swapInterval);
-
-    float h = (float)height / (float)width;
-            
-    gl.glMatrixMode(GL2ES1.GL_PROJECTION);
-
-    gl.glLoadIdentity();
-    gl.glFrustum(-1.0f, 1.0f, -h, h, 5.0f, 60.0f);
-    gl.glMatrixMode(GL2ES1.GL_MODELVIEW);
-    gl.glLoadIdentity();
-    gl.glTranslatef(0.0f, 0.0f, -40.0f);
-  }
-
-  public void dispose(GLAutoDrawable drawable) {
-    System.err.println("Gears: Dispose");
-  }
-
-  public void display(GLAutoDrawable drawable) {
-    // Turn the gears' teeth
-    angle += 2.0f;
-
-    // Get the GL corresponding to the drawable we are animating
-    GL2ES1 gl = drawable.getGL().getGL2ES1();
-
-    gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
-
-    gl.glClear(GL2ES1.GL_COLOR_BUFFER_BIT | GL2ES1.GL_DEPTH_BUFFER_BIT);
-
-    gl.glNormal3f(0.0f, 0.0f, 1.0f);
-    
-    // Rotate the entire assembly of gears based on how the user
-    // dragged the mouse around
-    gl.glPushMatrix();
-    gl.glRotatef(view_rotx, 1.0f, 0.0f, 0.0f);
-    gl.glRotatef(view_roty, 0.0f, 1.0f, 0.0f);
-    gl.glRotatef(view_rotz, 0.0f, 0.0f, 1.0f);
-            
-    final boolean disableBufferAfterDraw = true;
-    
-    // Place the first gear and call its display list
-    gl.glPushMatrix();
-    gl.glTranslatef(-3.0f, -2.0f, 0.0f);
-    gl.glRotatef(angle, 0.0f, 0.0f, 1.0f);
-    gl.glMaterialfv(GL2ES1.GL_FRONT_AND_BACK, GL2ES1.GL_AMBIENT_AND_DIFFUSE, red, 0);
-    gear1.draw(gl, disableBufferAfterDraw);
-    gl.glPopMatrix();
-            
-    // Place the second gear and call its display list
-    gl.glPushMatrix();
-    gl.glTranslatef(3.1f, -2.0f, 0.0f);
-    gl.glRotatef(-2.0f * angle - 9.0f, 0.0f, 0.0f, 1.0f);
-    gl.glMaterialfv(GL2ES1.GL_FRONT_AND_BACK, GL2ES1.GL_AMBIENT_AND_DIFFUSE, green, 0);
-    gear2.draw(gl, disableBufferAfterDraw);
-    gl.glPopMatrix();
-            
-    // Place the third gear and call its display list
-    gl.glPushMatrix();
-    gl.glTranslatef(-3.1f, 4.2f, 0.0f);
-    gl.glRotatef(-2.0f * angle - 25.0f, 0.0f, 0.0f, 1.0f);
-    gl.glMaterialfv(GL2ES1.GL_FRONT_AND_BACK, GL2ES1.GL_AMBIENT_AND_DIFFUSE, blue, 0);
-    gear3.draw(gl, disableBufferAfterDraw);
-    gl.glPopMatrix();
-            
-    // Remember that every push needs a pop; this one is paired with
-    // rotating the entire gear assembly
-    gl.glPopMatrix();
-  }
-
-  static class GearBuffers {
-      public final ImmModeSink frontFace;
-      public final ImmModeSink frontSide;
-      public final ImmModeSink backFace;
-      public final ImmModeSink backSide;
-      public final ImmModeSink outwardFace;
-      public final ImmModeSink insideRadiusCyl;
-      
-      public GearBuffers(
-          ImmModeSink frontFace,
-          ImmModeSink frontSide,
-          ImmModeSink backFace,
-          ImmModeSink backSide,
-          ImmModeSink outwardFace,
-          ImmModeSink insideRadiusCyl) {
-          this.frontFace = frontFace;
-          this.frontSide = frontSide;
-          this.backFace = backFace;          
-          this.backSide = backSide;
-          this.outwardFace = outwardFace;
-          this.insideRadiusCyl = insideRadiusCyl;          
-      }
-      
-      public void draw(GL2ES1 gl, boolean disableBufferAfterDraw) {
-          gl.glShadeModel(GL2ES1.GL_FLAT);          
-          frontFace.draw(gl, disableBufferAfterDraw);
-          frontSide.draw(gl, disableBufferAfterDraw);
-          backFace.draw(gl, disableBufferAfterDraw);
-          backSide.draw(gl, disableBufferAfterDraw);
-          outwardFace.draw(gl, disableBufferAfterDraw);
-          gl.glShadeModel(GL2ES1.GL_SMOOTH);          
-          insideRadiusCyl.draw(gl, disableBufferAfterDraw);
-      }
-  }
-  
-  public static GearBuffers gear(GL2ES1 gl,
-                                 float inner_radius,
-                                 float outer_radius,
-                                 float width,
-                                 int teeth,
-                                 float tooth_depth)
-  {
-    final float dz = width * 0.5f; 
-    int i;
-    float r0, r1, r2;
-    float angle, da;
-    float u, v, len;
-
-    r0 = inner_radius;
-    r1 = outer_radius - tooth_depth / 2.0f;
-    r2 = outer_radius + tooth_depth / 2.0f;
-            
-    da = 2.0f * (float) Math.PI / teeth / 4.0f;
-            
-    /* draw front face */
-    ImmModeSink vboFrontFace = ImmModeSink.createFixed(gl, GL.GL_STATIC_DRAW, 4*teeth+2,
-                          /* vertex */ 3, GL.GL_FLOAT,  /* color */ 0, GL.GL_FLOAT,  
-                          /* normal */ 0, GL.GL_BYTE,   /* texture */ 0, GL.GL_FLOAT);     
-    vboFrontFace.glBegin(GL.GL_TRIANGLE_STRIP);
-    for (i = 0; i < teeth; i++) {
-        angle = i * 2.0f * (float) Math.PI / teeth;
-        vboFrontFace.glVertex3f(r0 * (float)Math.cos(angle), r0 * (float)Math.sin(angle), dz);
-        vboFrontFace.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), dz);
-        vboFrontFace.glVertex3f(r0 * (float)Math.cos(angle), r0 * (float)Math.sin(angle), dz);
-        vboFrontFace.glVertex3f(r1 * (float)Math.cos(angle + 3.0f * da), r1 * (float)Math.sin(angle + 3.0f * da), dz);
-    }
-    vboFrontFace.glVertex3f(r0 * (float)Math.cos(0f), r0 * (float)Math.sin(0f), dz);
-    vboFrontFace.glVertex3f(r1 * (float)Math.cos(0f), r1 * (float)Math.sin(0f), dz);
-    vboFrontFace.glEnd(gl, false /* immediate */);
-
-    /* draw front sides of teeth */
-    ImmModeSink vboFrontSide = ImmModeSink.createFixed(gl, GL.GL_STATIC_DRAW, 6*teeth,
-                          /* vertex */ 3, GL.GL_FLOAT,  /* color */ 0, GL.GL_FLOAT,  
-                          /* normal */ 0, GL.GL_FLOAT,   /* texture */ 0, GL.GL_FLOAT); 
-    vboFrontSide.glBegin(GL.GL_TRIANGLES);
-    for (i = 0; i < teeth; i++) {
-        // QUAD [s0..s3] -> 2x TRIs
-        angle = i * 2.0f * (float) Math.PI / teeth;
-        // s0
-        vboFrontSide.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), dz);
-        // s1
-        vboFrontSide.glVertex3f(r2 * (float)Math.cos(angle + da), r2 * (float)Math.sin(angle + da), dz);
-        // s2
-        vboFrontSide.glVertex3f(r2 * (float)Math.cos(angle + 2.0f * da), r2 * (float)Math.sin(angle + 2.0f * da), dz);
-
-        // s0
-        vboFrontSide.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), dz);
-        // s2
-        vboFrontSide.glVertex3f(r2 * (float)Math.cos(angle + 2.0f * da), r2 * (float)Math.sin(angle + 2.0f * da), dz);        
-        // s3
-        vboFrontSide.glVertex3f(r1 * (float)Math.cos(angle + 3.0f * da), r1 * (float)Math.sin(angle + 3.0f * da), dz);
-    }
-    vboFrontSide.glEnd(gl, false /* immediate */);
-    
-    /* draw back face */
-    ImmModeSink vboBackFace = ImmModeSink.createFixed(gl, GL.GL_STATIC_DRAW, 4*teeth+2,
-                          /* vertex */ 3, GL.GL_FLOAT,  /* color */ 0, GL.GL_FLOAT,  
-                          /* normal */ 0, GL.GL_FLOAT,   /* texture */ 0, GL.GL_FLOAT);     
-    vboBackFace.glBegin(GL.GL_TRIANGLE_STRIP);
-    for (i = 0; i < teeth; i++) {
-        angle = i * 2.0f * (float) Math.PI / teeth;
-        vboBackFace.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), -dz);
-        vboBackFace.glVertex3f(r0 * (float)Math.cos(angle), r0 * (float)Math.sin(angle), -dz);
-        vboBackFace.glVertex3f(r1 * (float)Math.cos(angle + 3 * da), r1 * (float)Math.sin(angle + 3 * da), -dz);
-        vboBackFace.glVertex3f(r0 * (float)Math.cos(angle), r0 * (float)Math.sin(angle), -dz);
-    }
-    vboBackFace.glVertex3f(r1 * (float)Math.cos(0f), r1 * (float)Math.sin(0f), -dz);
-    vboBackFace.glVertex3f(r0 * (float)Math.cos(0f), r0 * (float)Math.sin(0f), -dz);
-    vboBackFace.glEnd(gl, false /* immediate */);
-    
-    /* draw back sides of teeth */
-    ImmModeSink vboBackSide = ImmModeSink.createFixed(gl, GL.GL_STATIC_DRAW, 6*teeth,
-                          /* vertex */ 3, GL.GL_FLOAT,  /* color */ 0, GL.GL_FLOAT,  
-                          /* normal */ 0, GL.GL_FLOAT,   /* texture */ 0, GL.GL_FLOAT);
-    vboBackSide.glBegin(GL.GL_TRIANGLES);
-    for (i = 0; i < teeth; i++) {
-        // QUAD [s0..s3] -> 2x TRIs
-        angle = i * 2.0f * (float) Math.PI / teeth;
-        // s0
-        vboBackSide.glVertex3f(r1 * (float)Math.cos(angle + 3 * da), r1 * (float)Math.sin(angle + 3 * da), -dz);
-        // s1
-        vboBackSide.glVertex3f(r2 * (float)Math.cos(angle + 2 * da), r2 * (float)Math.sin(angle + 2 * da), -dz);
-        // s2
-        vboBackSide.glVertex3f(r2 * (float)Math.cos(angle + da), r2 * (float)Math.sin(angle + da), -dz);
-        
-        // s0
-        vboBackSide.glVertex3f(r1 * (float)Math.cos(angle + 3 * da), r1 * (float)Math.sin(angle + 3 * da), -dz);
-        // s2
-        vboBackSide.glVertex3f(r2 * (float)Math.cos(angle + da), r2 * (float)Math.sin(angle + da), -dz);        
-        // s3
-        vboBackSide.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), -dz);
-    }
-    vboBackSide.glEnd(gl, false /* immediate */);
-    
-    /* draw outward faces of teeth */
-    ImmModeSink vboOutwardFace = ImmModeSink.createFixed(gl, GL.GL_STATIC_DRAW, 4*4*teeth,
-                          /* vertex */ 3, GL.GL_FLOAT,  /* color */ 0, GL.GL_FLOAT,  
-                          /* normal */ 3, GL.GL_FLOAT,  /* texture */ 0, GL.GL_FLOAT); 
-    vboOutwardFace.glBegin(GL.GL_TRIANGLE_STRIP);
-    for (i = 0; i < teeth; i++) {
-        angle = i * 2.0f * (float) Math.PI / teeth;
-        u = r2 * (float)Math.cos(angle + da) - r1 * (float)Math.cos(angle);
-        v = r2 * (float)Math.sin(angle + da) - r1 * (float)Math.sin(angle);
-        len = (float)Math.sqrt(u * u + v * v);
-        u /= len;
-        v /= len;
-        
-        vboOutwardFace.glNormal3f(v, -u, 0.0f);
-        vboOutwardFace.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), dz);
-        vboOutwardFace.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), -dz);
-        vboOutwardFace.glVertex3f(r2 * (float)Math.cos(angle + 1 * da), r2 * (float)Math.sin(angle + 1 * da), dz);
-        vboOutwardFace.glVertex3f(r2 * (float)Math.cos(angle + 1 * da), r2 * (float)Math.sin(angle + 1 * da), -dz);
-        
-        vboOutwardFace.glNormal3f((float)Math.cos(angle), (float)Math.sin(angle), 0.0f);
-        vboOutwardFace.glVertex3f(r2 * (float)Math.cos(angle + 1 * da), r2 * (float)Math.sin(angle + 1 * da), dz);
-        vboOutwardFace.glVertex3f(r2 * (float)Math.cos(angle + 1 * da), r2 * (float)Math.sin(angle + 1 * da), -dz);
-        vboOutwardFace.glVertex3f(r2 * (float)Math.cos(angle + 2 * da), r2 * (float)Math.sin(angle + 2 * da), dz);
-        vboOutwardFace.glVertex3f(r2 * (float)Math.cos(angle + 2 * da), r2 * (float)Math.sin(angle + 2 * da), -dz);
-        
-        u = r1 * (float)Math.cos(angle + 3 * da) - r2 * (float)Math.cos(angle + 2 * da);
-        v = r1 * (float)Math.sin(angle + 3 * da) - r2 * (float)Math.sin(angle + 2 * da);
-        vboOutwardFace.glNormal3f(v, -u, 0.0f);
-        vboOutwardFace.glVertex3f(r2 * (float)Math.cos(angle + 2 * da), r2 * (float)Math.sin(angle + 2 * da), dz);
-        vboOutwardFace.glVertex3f(r2 * (float)Math.cos(angle + 2 * da), r2 * (float)Math.sin(angle + 2 * da), -dz);        
-        vboOutwardFace.glVertex3f(r1 * (float)Math.cos(angle + 3 * da), r1 * (float)Math.sin(angle + 3 * da), dz);
-        vboOutwardFace.glVertex3f(r1 * (float)Math.cos(angle + 3 * da), r1 * (float)Math.sin(angle + 3 * da), -dz);
-        
-        vboOutwardFace.glNormal3f((float)Math.cos(angle), (float)Math.sin(angle), 0.0f);
-        vboOutwardFace.glVertex3f(r1 * (float)Math.cos(angle + 3 * da), r1 * (float)Math.sin(angle + 3 * da), dz);
-        vboOutwardFace.glVertex3f(r1 * (float)Math.cos(angle + 3 * da), r1 * (float)Math.sin(angle + 3 * da), -dz);
-        vboOutwardFace.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), dz);
-        vboOutwardFace.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), -dz);
-    }
-    vboOutwardFace.glEnd(gl, false /* immediate */);
-    
-    /* draw inside radius cylinder */
-    ImmModeSink vboInsideRadiusCyl = ImmModeSink.createFixed(gl, GL.GL_STATIC_DRAW, 2*teeth+2,
-                          /* vertex */ 3, GL.GL_FLOAT,  /* color */ 0, GL.GL_FLOAT,  
-                          /* normal */ 3, GL.GL_FLOAT,  /* texture */ 0, GL.GL_FLOAT); 
-    vboInsideRadiusCyl.glBegin(GL.GL_TRIANGLE_STRIP);
-    for (i = 0; i < teeth; i++) {
-        angle = i * 2.0f * (float) Math.PI / teeth;
-        vboInsideRadiusCyl.glNormal3f(-(float)Math.cos(angle), -(float)Math.sin(angle), 0.0f);
-        vboInsideRadiusCyl.glVertex3f(r0 * (float)Math.cos(angle), r0 * (float)Math.sin(angle), -dz);
-        vboInsideRadiusCyl.glVertex3f(r0 * (float)Math.cos(angle), r0 * (float)Math.sin(angle), dz);
-    }
-    vboInsideRadiusCyl.glNormal3f(-(float)Math.cos(0f), -(float)Math.sin(0f), 0.0f);
-    vboInsideRadiusCyl.glVertex3f(r0 * (float)Math.cos(0f), r0 * (float)Math.sin(0f), -dz);
-    vboInsideRadiusCyl.glVertex3f(r0 * (float)Math.cos(0f), r0 * (float)Math.sin(0f), dz);
-    vboInsideRadiusCyl.glEnd(gl, false /* immediate */);
-    return new GearBuffers(vboFrontFace, vboFrontSide, vboBackFace, vboBackSide, vboOutwardFace, vboInsideRadiusCyl);    
-  }
-
-  class GearsKeyAdapter extends KeyAdapter {      
-    public void keyPressed(KeyEvent e) {
-        int kc = e.getKeyCode();
-        if(KeyEvent.VK_LEFT == kc) {
-            view_roty -= 1;
-        } else if(KeyEvent.VK_RIGHT == kc) {
-            view_roty += 1;
-        } else if(KeyEvent.VK_UP == kc) {
-            view_rotx -= 1;
-        } else if(KeyEvent.VK_DOWN == kc) {
-            view_rotx += 1;
-        }
-    }
-  }
-  
-  class GearsMouseAdapter extends MouseAdapter {
-      public void mousePressed(MouseEvent e) {
-        prevMouseX = e.getX();
-        prevMouseY = e.getY();
-      }
-        
-      public void mouseReleased(MouseEvent e) {
-      }
-        
-      public void mouseDragged(MouseEvent e) {
-        int x = e.getX();
-        int y = e.getY();
-        int width=0, height=0;
-        Object source = e.getSource();
-        if(source instanceof Window) {
-            Window window = (Window) source;
-            width=window.getWidth();
-            height=window.getHeight();
-        } else if (GLProfile.isAWTAvailable() && source instanceof java.awt.Component) {
-            java.awt.Component comp = (java.awt.Component) source;
-            width=comp.getWidth();
-            height=comp.getHeight();
-        } else {
-            throw new RuntimeException("Event source neither Window nor Component: "+source);
-        }
-        float thetaY = 360.0f * ( (float)(x-prevMouseX)/(float)width);
-        float thetaX = 360.0f * ( (float)(prevMouseY-y)/(float)height);
-        
-        prevMouseX = x;
-        prevMouseY = y;
-
-        view_rotx += thetaX;
-        view_roty += thetaY;
-      }
-  }
-}