Seamless Integration of an FBObject based GLFBODrawable as GLOffscreenAutoDrawable.FBO and as an OffscreenLayerSurface's drawable (OSX) - Fix Bugs 569 and 599

Summary:
=========
The new FBObject based GLFBODrawable implementation allows the seamless utilization of
FBO offscreen rendering in single buffer, double buffer and MSAA mode.

The GLFBODrawable uses a parent drawable based on a
dummy surface to allow a GLOffscreenAutoDrawable.FBO creation
or a mutable surface supporting an existing offscreen layer surface (OSX CALayer).

Offscreen GLDrawable's and GLOffscreenAutoDrawable's can be selected via the
GLCapabilities. If simply !onscreen is selected in the caps instance w/o enabling FBO, PBuffer or Bitmap,
the factory will automatically choose regarding availability:
   FBO > PBuffer > Bitmap

Double buffering is supported in MSAA more (intrinsic) and explicit in non MSAA.
It is preferred when delivering resources (texture id's or framebuffer names)
to a shared GLContext.
This is demonstrated in (emulates our OSX CALayer implementation):
  TestFBOOffThreadSharedContextMix2DemosES2NEWT,
  TestFBOOnThreadSharedContext1DemoES2NEWT
and with the OSX JAWT OffscreenLayerSurface itself. FBO is the preferred choice.

+++

Offscreen drawables can be resized while maintaining a bound GLContext (e.g. w/ GLAutoDrawable).
Previously both, drawable and context, needed to be destroyed and recreated at offscreen resize.
Common implementation in GLDrawableHelper is used in the implementations
(NEWT's GLWindow, AWT GLCanvas, SWT GLCanvas).

+++

Tested:
=======

Manually run all unit tests on:
  - Linux x86_64 NVidia/AMD/Mesa3d(ES)
  - OSX x86_64 NVidia
  - Windows x86_64 NVidia
  - Android arm Mali-400/Tegra-2

No regressions.

Disclaimer:
===========
This feature is committed almost in one patch.

Both previous commits were introducing / fixing the capabilities behavior:
 90d45928186f2be99999461cfe45f76a783cc961
 9036376b7806a5fc61590bf49404eb71830de92f

I have to appologize for the huge size and impact (files and platforms) of this commit
however, I could not find a better way to inject this feature in one sane piece.

NativeWindow Details:
=====================

Complete decoupling of platform impl. detail of surfaces
implementing ProxySurface. Used to generalize dummy surfaces and EGL surfaces
on top of a native platform surface.
  - ProxySurface.UpstreamSurfaceHook -> UpstreamSurfaceHook
  - abstract class ProxySurface -> interface ProxySurface + ProxySurfaceImpl
  - Misc. implementations

JOGL Details:
=====================

FBOObject: API Change / Simplification & Usability
  - Removed reference counter to remove complexity, allow user to choose.
  - Add 'dispose' flag for detachColorbuffer(..), allowing to keep attachment alive
  - Fix equals operation of Attachment
  - Check pre-exising GL errors
  - Interface Colobuffer gets lifecycle methods
  - Add static factory methods to create Attachments w/o FBObject instance
  - Reset:
    - Clip min size to 1
    - Keep alive samplingSink, i.e. don't issue resetMSAATexture2DSink(..).
      It gets called at syncFramebuffer()/use(..) later on before actual usage.
      This allows the consumer to utilize the GL_FRONT buffer until (e.g.) swap.
  - misc bugfixes

GLOffscreenAutoDrawable: API Change
  - Reloc and interfacing
  - class com.jogamp.opengl.OffscreenAutoDrawable -> javax.media.opengl.*
    interfaces GLOffscreenAutoDrawable extends GLAutoDrawable
               GLOffscreenAutoDrawable.FBO extends GLOffscreenAutoDrawable, GLFBODrawable
  - Added general implementation and FBO specialization
  - Replacing GLPBuffer (deprecated) .. usable for any offscreen GLDrawable via factory

GLAutoDrawable:
  - Add 'GLDrawable getDelegatedDrawable()'
  - Refine documentation of setContext(..), remove disclaimer and fixme tags

GLDrawableFactory:
  - Refine API doc and it's selection mechanism for offscreen.
  - Add createOffscreenDrawable(..)
  - Add createOffscreenAutoDrawable(..)
  - Add canCreateFBO(..)
  - Mark createGLPbuffer(..) deprectated

Mark GLPBuffer deprecated

New: GLFBODrawable extends GLDrawable

GLCanvas (AWT and SWT): Add offscreen resize support w/o GLContext recreation

GLAutoDrawableBase .. GLWindow:
  - Add offscreen resize support w/o GLContext recreation
  - Remove double swapBuffer call
  -

GLBase/GLContext:
  - Add:
    - boolean hasBasicFBOSupport()
    - boolean hasFullFBOSupport()
    - int getMaxRenderbufferSamples()
    - boolean isTextureFormatBGRA8888Available()

GLContext: Fix version detection and hasGLSL()
  - Version detection in setGLFunctionAvailability(..)
    - Query GL_VERSION ASAP and parse it and compare w/ given major/minor
    - Use parsed version if valid and lower than given _or_ given is invalid.
    - Use validated version for caching (procaddr, ..), version number, etc.

  - Fix hasGLSL()
    Since 'isGL2ES2()' is true if 'isGL2()'
    and the latter simply alows GL 1.*, we confine the result to a GL >= 2.0
    on desktops. FIXME: May consider GL 1.5 w/ extensions.
    -  return isGL2ES2();
    +      return isGLES2() ||
    +             isGL3() ||
    +             isGL2() && ctxMajorVersion>1 ;

GLDrawableImpl:
  - Add 'associateContext(GLContext, boolean)' allowing impl.
    to have a (weak) reference list of bound context.
    This is was pulled up from the OSX specific drawable impl.
  - swapBuffersImpl() -> swapBuffersImpl(boolean doubleBuffered)
    and call it regardless of single buffering.
    This is required to propagate this event to impl. properly,
    i.e. FBODrawable requires a swap notification.
  - Clarify 'contextMadeCurrent(..)' protocol

GLDrawableHelper:
  - Add resize and recreate offscreen drawable util method
  - Simplify required init/reshape calls for GLEventListener
  -

GLGraphicsConfigurationUtil:
  - fixWinAttribBitsAndHwAccel: Reflect sharede context hw-accel bits
  - OSX has no offscreen bitmap, use pbuffer
  - use proper offscreen auto selection if offscreen and no modes are set

EGL Context/Drawable/DrawableFactory: Abstract native platform code out of base classes
  - Use EGLWrappedSurface w/ UpstreamSurfaceHook to handle upstream (X11, WGL, ..)
    lifecycle - in case the EGL resource is hooked up on it.

Invisible dummy surfaces: All platforms
  - size is now reduced to 64x64 and decoupled of actual generic mutable size
  - fix device  lifecycle, no more leaks

+++

OSX
====

Enable support for GLFBODrawableImpl in offscreen CALayer mode
  - NSOpenGLImpl: hooks to calayer native code
  - calayer code:
    - allows pbuffer and texures (FBO)
    - decouple size and draw calls avoiding flickering
    - enable auto resize of calayer tree

MacOSXCGLContext:
  - NSOpenGLImpl:
  - Fix false pbuffer 'usage', validate the pointer
  - If !pbuffer, copy other window mode bits of caps
  -

MacOSXCGLGraphicsConfiguration:
  - Only assume pbuffer if !onscreen
  - Remove reference of native pixelformat pointer

Native code:
  - use 'respondsToSelector:' query before calling 'new' methods
    avoiding an error message where unsuported (prev. OSX versions)
  - if monitor refresh-rate is queried 0, set to default 60hz
  - add missing NSAutoreleasePool decoration

+++

Android / NEWT:
===============

Issue setVisible(..) w/o wait, i.e. queue on EDT,
@Android surfaceChanged() callback. Otherwise we could deadlock:
   setVisible(..) -> EDT -> setVisibleImpl(..) -> 'GL-display'.
the latter may may cause havoc while Android-EDT is blocked [until it's return].

17 files changed, 920 insertions, 325 deletions

diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/DelegatedUpstreamSurfaceHookMutableSize.java b/src/nativewindow/classes/com/jogamp/nativewindow/DelegatedUpstreamSurfaceHookMutableSize.java
new file mode 100644
index 000000000..22c95f3dd
--- /dev/null
+++ b/src/nativewindow/classes/com/jogamp/nativewindow/DelegatedUpstreamSurfaceHookMutableSize.java
@@ -0,0 +1,39 @@
+package com.jogamp.nativewindow;
+
+import javax.media.nativewindow.ProxySurface;
+import javax.media.nativewindow.UpstreamSurfaceHook;
+
+public class DelegatedUpstreamSurfaceHookMutableSize extends UpstreamSurfaceHookMutableSize {
+    final UpstreamSurfaceHook upstream;
+
+    /**
+     * @param upstream optional upstream UpstreamSurfaceHook used for {@link #create(ProxySurface)} and {@link #destroy(ProxySurface)}.
+     * @param width initial width
+     * @param height initial height
+     */
+    public DelegatedUpstreamSurfaceHookMutableSize(UpstreamSurfaceHook upstream, int width, int height) {
+        super(width, height);
+        this.upstream = upstream;
+    }
+
+    @Override
+    public final void create(ProxySurface s) {
+        if(null != upstream) {
+            upstream.create(s);
+        }
+    }
+
+    @Override
+    public final void destroy(ProxySurface s) {
+        if(null != upstream) {
+            upstream.destroy(s);
+        }
+    }
+    
+    @Override
+    public String toString() {
+        return getClass().getSimpleName()+"[ "+ width + "x" + height + ", " + upstream + "]";        
+    }
+    
+}
+
diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/DelegatedUpstreamSurfaceHookWithSurfaceSize.java b/src/nativewindow/classes/com/jogamp/nativewindow/DelegatedUpstreamSurfaceHookWithSurfaceSize.java
new file mode 100644
index 000000000..85e24582c
--- /dev/null
+++ b/src/nativewindow/classes/com/jogamp/nativewindow/DelegatedUpstreamSurfaceHookWithSurfaceSize.java
@@ -0,0 +1,54 @@
+package com.jogamp.nativewindow;
+
+import javax.media.nativewindow.NativeSurface;
+import javax.media.nativewindow.ProxySurface;
+import javax.media.nativewindow.UpstreamSurfaceHook;
+
+public class DelegatedUpstreamSurfaceHookWithSurfaceSize implements UpstreamSurfaceHook {
+    final UpstreamSurfaceHook upstream;
+    final NativeSurface surface;
+
+    /**
+     * @param upstream optional upstream UpstreamSurfaceHook used for {@link #create(ProxySurface)} and {@link #destroy(ProxySurface)}.
+     * @param surface mandatory {@link NativeSurface} used for {@link #getWidth(ProxySurface)} and {@link #getHeight(ProxySurface)}
+     */
+    public DelegatedUpstreamSurfaceHookWithSurfaceSize(UpstreamSurfaceHook upstream, NativeSurface surface) {
+        this.upstream = upstream;
+        this.surface = surface;
+        if(null == surface) {
+            throw new IllegalArgumentException("given surface is null");
+        }
+    }
+
+    @Override
+    public final void create(ProxySurface s) {
+        if(null != upstream) {
+            upstream.create(s);
+        }
+    }
+
+    @Override
+    public final void destroy(ProxySurface s) {
+        if(null != upstream) {
+            upstream.destroy(s);
+        }
+    }
+
+    @Override
+    public final int getWidth(ProxySurface s) {
+        return surface.getWidth();
+    }
+
+    @Override
+    public final int getHeight(ProxySurface s) {
+        return surface.getHeight();
+    }      
+    
+    @Override
+    public String toString() {
+        final String us_s = null != surface ? ( surface.getClass().getName() + ": 0x" + Long.toHexString(surface.getSurfaceHandle()) + " " +surface.getWidth() + "x" + surface.getHeight() ) : "nil";        
+        return getClass().getSimpleName()+"["+upstream+", "+us_s+"]";
+    }
+    
+}
+
diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/UpstreamSurfaceHookMutableSize.java b/src/nativewindow/classes/com/jogamp/nativewindow/UpstreamSurfaceHookMutableSize.java
new file mode 100644
index 000000000..29c540ac4
--- /dev/null
+++ b/src/nativewindow/classes/com/jogamp/nativewindow/UpstreamSurfaceHookMutableSize.java
@@ -0,0 +1,45 @@
+package com.jogamp.nativewindow;
+
+import javax.media.nativewindow.ProxySurface;
+import javax.media.nativewindow.UpstreamSurfaceHook;
+
+public class UpstreamSurfaceHookMutableSize implements UpstreamSurfaceHook.MutableSize {
+    int width, height;
+
+    /**
+     * @param width initial width
+     * @param height initial height
+     */
+    public UpstreamSurfaceHookMutableSize(int width, int height) {
+        this.width = width;
+        this.height = height;
+    }
+
+    @Override
+    public final void setSize(int width, int height) {
+        this.width = width;
+        this.height = height;        
+    }
+    
+    @Override
+    public final int getWidth(ProxySurface s) {
+        return width;
+    }
+
+    @Override
+    public final int getHeight(ProxySurface s) {
+        return height;
+    }
+    @Override
+    public void create(ProxySurface s) { /* nop */ }
+
+    @Override
+    public void destroy(ProxySurface s) { /* nop */ }
+    
+    @Override
+    public String toString() {
+        return getClass().getSimpleName()+"[ "+ width + "x" + height + "]";        
+    }
+    
+}
+
diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
index d4b927cf1..a62d08ccf 100644
--- a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
+++ b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
@@ -39,12 +39,14 @@ package com.jogamp.nativewindow.awt;
 
 import com.jogamp.common.util.locks.LockFactory;
 import com.jogamp.common.util.locks.RecursiveLock;
+import com.jogamp.nativewindow.MutableGraphicsConfiguration;
 
 import java.awt.Component;
 import java.awt.Container;
 import java.applet.Applet;
 import javax.media.nativewindow.AbstractGraphicsConfiguration;
 import javax.media.nativewindow.AbstractGraphicsDevice;
+import javax.media.nativewindow.CapabilitiesImmutable;
 import javax.media.nativewindow.NativeSurface;
 import javax.media.nativewindow.NativeWindow;
 import javax.media.nativewindow.NativeWindowException;
@@ -110,21 +112,6 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
     this.offscreenSurfaceLayer = 0;
   }
 
-  @Override
-  public void setShallUseOffscreenLayer(boolean v) {
-      shallUseOffscreenLayer = v;
-  }
-
-  @Override
-  public final boolean getShallUseOffscreenLayer() {
-      return shallUseOffscreenLayer;
-  }
-
-  @Override
-  public final boolean isOffscreenLayerSurfaceEnabled() {
-      return isOffscreenLayerSurface;
-  }
-
   protected synchronized void invalidate() {
     invalidateNative();
     jawt = null;
@@ -136,26 +123,29 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
   }
   protected abstract void invalidateNative();
 
-  protected final void updateBounds(JAWT_Rectangle jawtBounds) {
-    if(DEBUG) {
-        final Rectangle jb = new Rectangle(jawtBounds.getX(), jawtBounds.getY(), jawtBounds.getWidth(), jawtBounds.getHeight());
-        if(!bounds.equals(jb)) {
+  protected final boolean updateBounds(JAWT_Rectangle jawtBounds) {
+    final Rectangle jb = new Rectangle(jawtBounds.getX(), jawtBounds.getY(), jawtBounds.getWidth(), jawtBounds.getHeight());
+    final boolean changed = !bounds.equals(jb);
+    
+    if(changed) {
+        if(DEBUG) {
             System.err.println("JAWTWindow.updateBounds: "+bounds+" -> "+jb);
             Thread.dumpStack();
         }
+        bounds.setX(jawtBounds.getX());
+        bounds.setY(jawtBounds.getY());
+        bounds.setWidth(jawtBounds.getWidth());
+        bounds.setHeight(jawtBounds.getHeight());
+    
+        if(component instanceof Container) {
+            java.awt.Insets contInsets = ((Container)component).getInsets();
+            insets.setLeftWidth(contInsets.left);
+            insets.setRightWidth(contInsets.right);
+            insets.setTopHeight(contInsets.top);
+            insets.setBottomHeight(contInsets.bottom);
+        }
     }
-    bounds.setX(jawtBounds.getX());
-    bounds.setY(jawtBounds.getY());
-    bounds.setWidth(jawtBounds.getWidth());
-    bounds.setHeight(jawtBounds.getHeight());
-
-    if(component instanceof Container) {
-        java.awt.Insets contInsets = ((Container)component).getInsets();
-        insets.setLeftWidth(contInsets.left);
-        insets.setRightWidth(contInsets.right);
-        insets.setTopHeight(contInsets.top);
-        insets.setBottomHeight(contInsets.bottom);
-    }
+    return changed;
   }
 
   /** @return the JAWT_DrawingSurfaceInfo's (JAWT_Rectangle) bounds, updated with lock */
@@ -181,9 +171,29 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
       return jawt;
   }
 
-  /**
-   * {@inheritDoc}
-   */
+  //
+  // OffscreenLayerOption
+  //
+  
+  @Override
+  public void setShallUseOffscreenLayer(boolean v) {
+      shallUseOffscreenLayer = v;
+  }
+
+  @Override
+  public final boolean getShallUseOffscreenLayer() {
+      return shallUseOffscreenLayer;
+  }
+
+  @Override
+  public final boolean isOffscreenLayerSurfaceEnabled() {
+      return isOffscreenLayerSurface;
+  }
+
+  //
+  // OffscreenLayerSurface
+  //
+
   @Override
   public final void attachSurfaceLayer(final long layerHandle) throws NativeWindowException {
       if( !isOffscreenLayerSurfaceEnabled() ) {
@@ -205,9 +215,6 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
   }
   protected abstract void attachSurfaceLayerImpl(final long layerHandle);
 
-  /**
-   * {@inheritDoc}
-   */
   @Override
   public final void detachSurfaceLayer() throws NativeWindowException {
       if( !isOffscreenLayerSurfaceEnabled() ) {
@@ -232,11 +239,21 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
   }
   protected abstract void detachSurfaceLayerImpl(final long layerHandle);
 
+  protected final long getAttachedSurfaceLayer() {
+      return offscreenSurfaceLayer;
+  }
+  
   @Override
   public final boolean isSurfaceLayerAttached() {
       return 0 != offscreenSurfaceLayer;
   }
   
+  @Override
+  public final void setChosenCapabilities(CapabilitiesImmutable caps) {
+      ((MutableGraphicsConfiguration)getGraphicsConfiguration()).setChosenCapabilities(caps);
+      getPrivateGraphicsConfiguration().setChosenCapabilities(caps);      
+  }
+  
   //
   // SurfaceUpdateListener
   //
@@ -381,7 +398,7 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
   public final AbstractGraphicsConfiguration getGraphicsConfiguration() {
     return config.getNativeGraphicsConfiguration();
   }
-
+  
   @Override
   public final long getDisplayHandle() {
     return getGraphicsConfiguration().getScreen().getDevice().getHandle();
@@ -393,13 +410,13 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
   }
 
   @Override
-  public int getWidth() {
+  public final int getWidth() {
     return component.getWidth();
   }
 
   @Override
-  public int getHeight() {
-    return component.getHeight();
+  public final int getHeight() {
+    return component.getHeight();    
   }
 
   //
diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/egl/EGLGraphicsDevice.java b/src/nativewindow/classes/com/jogamp/nativewindow/egl/EGLGraphicsDevice.java
index 40042ec81..b824350ff 100644
--- a/src/nativewindow/classes/com/jogamp/nativewindow/egl/EGLGraphicsDevice.java
+++ b/src/nativewindow/classes/com/jogamp/nativewindow/egl/EGLGraphicsDevice.java
@@ -67,8 +67,8 @@ public class EGLGraphicsDevice extends DefaultGraphicsDevice implements Cloneabl
      * Note that this is not an open connection, ie no native display handle exist.
      * This constructor exist to setup a default device connection/unit.<br>
      */
-    public EGLGraphicsDevice(String connection, int unitID) {
-        super(NativeWindowFactory.TYPE_EGL, connection, unitID);
+    public EGLGraphicsDevice() {
+        super(NativeWindowFactory.TYPE_EGL, AbstractGraphicsDevice.DEFAULT_CONNECTION, AbstractGraphicsDevice.DEFAULT_UNIT);
         this.nativeDisplayID[0] = 0 ; // EGL.EGL_DEFAULT_DISPLAY
         this.eglLifecycleCallback = null;
     }
diff --git a/src/nativewindow/classes/javax/media/nativewindow/NativeSurface.java b/src/nativewindow/classes/javax/media/nativewindow/NativeSurface.java
index cec7d4ec3..27462ae70 100644
--- a/src/nativewindow/classes/javax/media/nativewindow/NativeSurface.java
+++ b/src/nativewindow/classes/javax/media/nativewindow/NativeSurface.java
@@ -124,8 +124,11 @@ public interface NativeSurface extends SurfaceUpdatedListener {
   /**
    * Provide a mechanism to utilize custom (pre-) swap surface
    * code. This method is called before the render toolkit (e.g. JOGL) 
-   * swaps the buffer/surface. The implementation may itself apply the swapping,
+   * swaps the buffer/surface if double buffering is enabled.
+   * <p> 
+   * The implementation may itself apply the swapping,
    * in which case true shall be returned.
+   * </p>
    *
    * @return true if this method completed swapping the surface,
    *         otherwise false, in which case eg the GLDrawable 
diff --git a/src/nativewindow/classes/javax/media/nativewindow/OffscreenLayerSurface.java b/src/nativewindow/classes/javax/media/nativewindow/OffscreenLayerSurface.java
index f7dbc6c27..f9800109c 100644
--- a/src/nativewindow/classes/javax/media/nativewindow/OffscreenLayerSurface.java
+++ b/src/nativewindow/classes/javax/media/nativewindow/OffscreenLayerSurface.java
@@ -50,4 +50,7 @@ public interface OffscreenLayerSurface {
   /** Returns true if a surface layer is attached, otherwise false. */
   public boolean isSurfaceLayerAttached();
   
+  /** Sets the capabilities of this instance, allowing upstream API's to refine it, i.e. OpenGL related settings. */
+  public void setChosenCapabilities(CapabilitiesImmutable caps);
+  
 }
diff --git a/src/nativewindow/classes/javax/media/nativewindow/ProxySurface.java b/src/nativewindow/classes/javax/media/nativewindow/ProxySurface.java
index 7fc9789c2..395fdc818 100644
--- a/src/nativewindow/classes/javax/media/nativewindow/ProxySurface.java
+++ b/src/nativewindow/classes/javax/media/nativewindow/ProxySurface.java
@@ -1,5 +1,5 @@
 /**
- * Copyright 2010 JogAmp Community. All rights reserved.
+ * Copyright 2012 JogAmp Community. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification, are
  * permitted provided that the following conditions are met:
@@ -29,242 +29,82 @@
 package javax.media.nativewindow;
 
 import jogamp.nativewindow.Debug;
-import jogamp.nativewindow.SurfaceUpdatedHelper;
 
-import com.jogamp.common.util.locks.LockFactory;
-import com.jogamp.common.util.locks.RecursiveLock;
-
-public abstract class ProxySurface implements NativeSurface, MutableSurface {
+/**
+ * Provides a mutable {@link NativeSurface}, i.e. {@link MutableSurface}, while allowing an
+ * {@link UpstreamSurfaceHook} to influence the lifecycle and information.
+ * 
+ * @see UpstreamSurfaceHook
+ * @see MutableSurface
+ * @see NativeSurface
+ */
+public interface ProxySurface extends MutableSurface {    
     public static final boolean DEBUG = Debug.debug("ProxySurface");
     
     /** 
-     * Implementation specific bitvalue stating the upstream's {@link AbstractGraphicsDevice} is owned by this {@link ProxySurface}.
-     * @see #setImplBitfield(int)
-     * @see #getImplBitfield()
+     * Implementation specific bit-value stating this {@link ProxySurface} owns the upstream's surface handle
+     * @see #addUpstreamOptionBits(int)
+     * @see #getUpstreamOptionBits()
      */ 
-    public static final int OWN_DEVICE = 1 << 7;
+    public static final int OPT_PROXY_OWNS_UPSTREAM_SURFACE = 1 << 6;
+    
+    /** 
+     * Implementation specific bit-value stating this {@link ProxySurface} owns the upstream's {@link AbstractGraphicsDevice}.
+     * @see #addUpstreamOptionBits(int)
+     * @see #getUpstreamOptionBits()
+     */ 
+    public static final int OPT_PROXY_OWNS_UPSTREAM_DEVICE = 1 << 7;
     
     /** 
      * Implementation specific bitvalue stating the upstream's {@link NativeSurface} is an invisible window, i.e. maybe incomplete.
-     * @see #setImplBitfield(int)
-     * @see #getImplBitfield()
+     * @see #addUpstreamOptionBits(int)
+     * @see #getUpstreamOptionBits()
      */ 
-    public static final int INVISIBLE_WINDOW = 1 << 8;
+    public static final int OPT_UPSTREAM_WINDOW_INVISIBLE = 1 << 8;
 
-    /** Interface allowing upstream caller to pass lifecycle actions and size info to a {@link ProxySurface} instance. */ 
-    public interface UpstreamSurfaceHook {
-        /** called within {@link ProxySurface#createNotify()} within lock, before using surface. */
-        public void create(ProxySurface s);
-        /** called within {@link ProxySurface#destroyNotify()} within lock, before clearing fields. */
-        public void destroy(ProxySurface s);
+    /** Allow redefining the AbstractGraphicsConfiguration */
+    public void setGraphicsConfiguration(AbstractGraphicsConfiguration cfg);    
 
-        /** Returns the width of the upstream surface */ 
-        public int getWidth(ProxySurface s);
-        /** Returns the height of the upstream surface */ 
-        public int getHeight(ProxySurface s);
-    }
+    /** Returns the set {@link UpstreamSurfaceHook}, or null if not set. */
+    public UpstreamSurfaceHook getUpstreamSurfaceHook();
     
-    private final SurfaceUpdatedHelper surfaceUpdatedHelper = new SurfaceUpdatedHelper();
-    private final AbstractGraphicsConfiguration config; // control access due to delegation
-    private final UpstreamSurfaceHook upstream;
-    public final int initialWidth;
-    public final int initialHeight;
-    private long surfaceHandle_old;
-    protected RecursiveLock surfaceLock = LockFactory.createRecursiveLock();
-    protected long displayHandle;
-    protected int scrnIndex;
-    protected int implBitfield;
-
     /**
-     * @param cfg the {@link AbstractGraphicsConfiguration} to be used
-     * @param initialWidth the initial width
-     * @param initialHeight the initial height
+     * Sets the {@link UpstreamSurfaceHook} and returns the previous value.
      */
-    protected ProxySurface(AbstractGraphicsConfiguration cfg, int initialWidth, int initialHeight, UpstreamSurfaceHook upstream) {
-        if(null == cfg) {
-            throw new IllegalArgumentException("null config");
-        }
-        this.config = cfg;
-        this.upstream = upstream;
-        this.initialWidth = initialWidth;
-        this.initialHeight = initialHeight;
-        this.displayHandle=config.getNativeGraphicsConfiguration().getScreen().getDevice().getHandle();
-        this.surfaceHandle_old = 0;
-        this.implBitfield = 0;
-    }
-
-    public final UpstreamSurfaceHook getUpstreamSurfaceHook() { return upstream; }
+    public void setUpstreamSurfaceHook(UpstreamSurfaceHook hook);
+    
+    /** 
+     * Enables or disables the {@link UpstreamSurfaceHook} lifecycle functions 
+     * {@link UpstreamSurfaceHook#create(ProxySurface)} and {@link UpstreamSurfaceHook#destroy(ProxySurface)}.
+     * <p>
+     * Use this for small code blocks where the native resources shall not change,
+     * i.e. resizing a derived (OpenGL) drawable.
+     * </p> 
+     */
+    public void enableUpstreamSurfaceHookLifecycle(boolean enable);
     
     /** 
-     * If a valid {@link UpstreamSurfaceHook} instance is passed in the 
-     * {@link ProxySurface#ProxySurface(AbstractGraphicsConfiguration, int, int, UpstreamSurfaceHook) constructor}, 
      * {@link UpstreamSurfaceHook#create(ProxySurface)} is being issued and the proxy surface/window handles shall be set.
      */ 
-    public void createNotify() {
-        if(null != upstream) {
-            upstream.create(this);
-        }
-        this.displayHandle=config.getNativeGraphicsConfiguration().getScreen().getDevice().getHandle();
-        this.surfaceHandle_old = 0;
-    }
+    public void createNotify();
     
     /** 
-     * If a valid {@link UpstreamSurfaceHook} instance is passed in the 
-     * {@link ProxySurface#ProxySurface(AbstractGraphicsConfiguration, int, int, UpstreamSurfaceHook) constructor}, 
-     * {@link UpstreamSurfaceHook#destroy(ProxySurface)} is being issued and all fields are cleared.
+     * {@link UpstreamSurfaceHook#destroy(ProxySurface)} is being issued and all proxy surface/window handles shall be cleared.
      */ 
-    public void destroyNotify() {
-        if(null != upstream) {
-            upstream.destroy(this);
-            invalidateImpl();
-        }
-        this.displayHandle = 0;
-        this.surfaceHandle_old = 0;
-    }
+    public void destroyNotify();
     
-    /** 
-     * Must be overridden by implementations allowing having a {@link UpstreamSurfaceHook} being passed.
-     * @see #destroyNotify() 
-     */
-    protected void invalidateImpl() {
-        throw new InternalError("UpstreamSurfaceHook given, but required method not implemented.");        
-    }
+    public StringBuilder getUpstreamOptionBits(StringBuilder sink);
+    public int getUpstreamOptionBits();
     
-    @Override
-    public final long getDisplayHandle() {
-        return displayHandle;
-    }
-
-    protected final AbstractGraphicsConfiguration getPrivateGraphicsConfiguration() {
-        return config;
-    }
-
-    @Override
-    public final AbstractGraphicsConfiguration getGraphicsConfiguration() {
-        return config.getNativeGraphicsConfiguration();
-    }
-
-    @Override
-    public final int getScreenIndex() {
-        return getGraphicsConfiguration().getScreen().getIndex();
-    }
-
-    @Override
-    public abstract long getSurfaceHandle();
-
-    @Override
-    public abstract void setSurfaceHandle(long surfaceHandle);
+    /** Returns <code>true</code> if the give bit-mask <code>v</code> is set in this instance upstream-option-bits, otherwise <code>false</code>.*/
+    public boolean containsUpstreamOptionBits(int v);
     
-    @Override
-    public final int getWidth() {
-        if(null != upstream) {
-            return upstream.getWidth(this);
-        }
-        return initialWidth;
-    }
-
-    @Override
-    public final int getHeight() {
-        if(null != upstream) {
-            return upstream.getHeight(this);
-        }
-        return initialHeight;
-    }
-
-    @Override
-    public boolean surfaceSwap() {
-        return false;
-    }
-
-    @Override
-    public void addSurfaceUpdatedListener(SurfaceUpdatedListener l) {
-        surfaceUpdatedHelper.addSurfaceUpdatedListener(l);
-    }
-
-    @Override
-    public void addSurfaceUpdatedListener(int index, SurfaceUpdatedListener l) throws IndexOutOfBoundsException {
-        surfaceUpdatedHelper.addSurfaceUpdatedListener(index, l);
-    }
-
-    @Override
-    public void removeSurfaceUpdatedListener(SurfaceUpdatedListener l) {
-        surfaceUpdatedHelper.removeSurfaceUpdatedListener(l);
-    }
-
-    @Override
-    public void surfaceUpdated(Object updater, NativeSurface ns, long when) {
-        surfaceUpdatedHelper.surfaceUpdated(updater, ns, when);
-    }
-
-    @Override
-    public int lockSurface() throws NativeWindowException, RuntimeException  {
-        surfaceLock.lock();
-        int res = surfaceLock.getHoldCount() == 1 ? LOCK_SURFACE_NOT_READY : LOCK_SUCCESS; // new lock ?
-
-        if ( LOCK_SURFACE_NOT_READY == res ) {
-            try {
-                final AbstractGraphicsDevice adevice = getGraphicsConfiguration().getScreen().getDevice();
-                adevice.lock();
-                try {
-                    res = lockSurfaceImpl();
-                    if(LOCK_SUCCESS == res && surfaceHandle_old != getSurfaceHandle()) {
-                        res = LOCK_SURFACE_CHANGED;
-                        if(DEBUG) {
-                            System.err.println("ProxySurface: surface change 0x"+Long.toHexString(surfaceHandle_old)+" -> 0x"+Long.toHexString(getSurfaceHandle()));
-                            // Thread.dumpStack();
-                        }
-                    }
-                } finally {
-                    if (LOCK_SURFACE_NOT_READY >= res) {
-                        adevice.unlock();
-                    }
-                }
-            } finally {
-                if (LOCK_SURFACE_NOT_READY >= res) {
-                    surfaceLock.unlock();
-                }
-            }
-        }
-        return res;
-    }
-
-    @Override
-    public final void unlockSurface() {
-        surfaceLock.validateLocked();
-        surfaceHandle_old = getSurfaceHandle();
-
-        if (surfaceLock.getHoldCount() == 1) {
-            final AbstractGraphicsDevice adevice = getGraphicsConfiguration().getScreen().getDevice();
-            try {
-                unlockSurfaceImpl();
-            } finally {
-                adevice.unlock();
-            }
-        }
-        surfaceLock.unlock();
-    }
-
-    protected abstract int lockSurfaceImpl();
-
-    protected abstract void unlockSurfaceImpl() ;
-
-    public final void validateSurfaceLocked() {
-        surfaceLock.validateLocked();
-    }
-
-    @Override
-    public final boolean isSurfaceLockedByOtherThread() {
-        return surfaceLock.isLockedByOtherThread();
-    }
-
-    @Override
-    public final Thread getSurfaceLockOwner() {
-        return surfaceLock.getOwner();
-    }
+    /** Add the given bit-mask to this instance upstream-option-bits using bit-or w/ <code>v</code>.*/
+    public void addUpstreamOptionBits(int v);
     
-    @Override
-    public abstract String toString();
+    /** Clear the given bit-mask from this instance upstream-option-bits using bit-and w/ <code>~v</code>*/
+    public void clearUpstreamOptionBits(int v);
     
-    public int getImplBitfield() { return implBitfield; }    
-    public void setImplBitfield(int v) { implBitfield=v; }
+    public StringBuilder toString(StringBuilder sink);
+    public String toString();
 }
diff --git a/src/nativewindow/classes/javax/media/nativewindow/UpstreamSurfaceHook.java b/src/nativewindow/classes/javax/media/nativewindow/UpstreamSurfaceHook.java
new file mode 100644
index 000000000..6fe2e5364
--- /dev/null
+++ b/src/nativewindow/classes/javax/media/nativewindow/UpstreamSurfaceHook.java
@@ -0,0 +1,52 @@
+/**
+ * Copyright 2012 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package javax.media.nativewindow;
+
+/** 
+ * Interface allowing upstream caller to pass lifecycle actions and size info 
+ * to a {@link ProxySurface} instance. 
+ */ 
+public interface UpstreamSurfaceHook {
+    /** called within {@link ProxySurface#createNotify()} within lock, before using surface. */
+    public void create(ProxySurface s);
+    /** called within {@link ProxySurface#destroyNotify()} within lock, before clearing fields. */
+    public void destroy(ProxySurface s);
+
+    /** Returns the width of the upstream surface, used if {@link ProxySurface#UPSTREAM_PROVIDES_SIZE} is set. */ 
+    public int getWidth(ProxySurface s);
+    /** Returns the height of the upstream surface, used if {@link ProxySurface#UPSTREAM_PROVIDES_SIZE} is set. */ 
+    public int getHeight(ProxySurface s);
+    
+    /**
+     * {@link UpstreamSurfaceHook} w/ mutable size, allowing it's {@link ProxySurface} user to resize.  
+     */ 
+    public interface MutableSize extends UpstreamSurfaceHook {
+        public void setSize(int width, int height);
+    }
+}
diff --git a/src/nativewindow/classes/jogamp/nativewindow/ProxySurfaceImpl.java b/src/nativewindow/classes/jogamp/nativewindow/ProxySurfaceImpl.java
new file mode 100644
index 000000000..63f56cbae
--- /dev/null
+++ b/src/nativewindow/classes/jogamp/nativewindow/ProxySurfaceImpl.java
@@ -0,0 +1,326 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package jogamp.nativewindow;
+
+import javax.media.nativewindow.AbstractGraphicsConfiguration;
+import javax.media.nativewindow.AbstractGraphicsDevice;
+import javax.media.nativewindow.NativeSurface;
+import javax.media.nativewindow.NativeWindowException;
+import javax.media.nativewindow.ProxySurface;
+import javax.media.nativewindow.SurfaceUpdatedListener;
+import javax.media.nativewindow.UpstreamSurfaceHook;
+
+
+import com.jogamp.common.util.locks.LockFactory;
+import com.jogamp.common.util.locks.RecursiveLock;
+
+public abstract class ProxySurfaceImpl implements ProxySurface {    
+    private final SurfaceUpdatedHelper surfaceUpdatedHelper = new SurfaceUpdatedHelper();
+    protected long displayHandle; // convenient ref of config.screen.device.handle
+    private AbstractGraphicsConfiguration config; // control access due to delegation
+    private UpstreamSurfaceHook upstream;
+    private long surfaceHandle_old;
+    private RecursiveLock surfaceLock = LockFactory.createRecursiveLock();
+    private int implBitfield;
+    private boolean upstreamSurfaceHookLifecycleEnabled;
+
+    /**
+     * @param cfg the {@link AbstractGraphicsConfiguration} to be used
+     * @param upstream the {@link UpstreamSurfaceHook} to be used
+     * @param ownsDevice <code>true</code> if this {@link ProxySurface} instance
+     *                  owns the {@link AbstractGraphicsConfiguration}'s {@link AbstractGraphicsDevice},
+     *                  otherwise <code>false</code>. Owning the device implies closing it at {@link #destroyNotify()}.
+     */
+    protected ProxySurfaceImpl(AbstractGraphicsConfiguration cfg, UpstreamSurfaceHook upstream, boolean ownsDevice) {
+        if(null == cfg) {
+            throw new IllegalArgumentException("null AbstractGraphicsConfiguration");
+        }
+        if(null == upstream) {
+            throw new IllegalArgumentException("null UpstreamSurfaceHook");
+        }
+        this.config = cfg;
+        this.displayHandle=config.getNativeGraphicsConfiguration().getScreen().getDevice().getHandle();
+        this.upstream = upstream;
+        this.surfaceHandle_old = 0;
+        this.implBitfield = 0;
+        this.upstreamSurfaceHookLifecycleEnabled = true;
+        if(ownsDevice) {
+            addUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_DEVICE );
+        }        
+    }
+
+    @Override
+    public final UpstreamSurfaceHook getUpstreamSurfaceHook() { return upstream; }
+    
+    @Override
+    public void setUpstreamSurfaceHook(UpstreamSurfaceHook hook) {
+        if(null == hook) {
+            throw new IllegalArgumentException("null UpstreamSurfaceHook");
+        }
+        upstream = hook;
+    }
+        
+    @Override
+    public final void enableUpstreamSurfaceHookLifecycle(boolean enable) {
+        upstreamSurfaceHookLifecycleEnabled = enable;
+    }
+    
+    @Override
+    public void createNotify() {        
+        if(upstreamSurfaceHookLifecycleEnabled) {
+            upstream.create(this);
+        }
+        this.displayHandle=config.getNativeGraphicsConfiguration().getScreen().getDevice().getHandle();
+        this.surfaceHandle_old = 0;
+    }
+
+    @Override
+    public void destroyNotify() {
+        if(upstreamSurfaceHookLifecycleEnabled) {
+            upstream.destroy(this);
+            if( containsUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_DEVICE ) ) {
+                final AbstractGraphicsDevice aDevice = getGraphicsConfiguration().getScreen().getDevice();
+                aDevice.close();
+                clearUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_DEVICE );
+            }
+            invalidateImpl();
+        }
+        this.displayHandle = 0;
+        this.surfaceHandle_old = 0;
+    }
+    
+    /** 
+     * Must be overridden by implementations allowing having a {@link UpstreamSurfaceHook} being passed.
+     * @see #destroyNotify() 
+     */
+    protected void invalidateImpl() {
+        throw new InternalError("UpstreamSurfaceHook given, but required method not implemented.");        
+    }
+    
+    @Override
+    public final long getDisplayHandle() {
+        return displayHandle;
+    }
+
+    protected final AbstractGraphicsConfiguration getPrivateGraphicsConfiguration() {
+        return config;
+    }
+
+    @Override
+    public final AbstractGraphicsConfiguration getGraphicsConfiguration() {
+        return config.getNativeGraphicsConfiguration();
+    }
+
+    @Override
+    public final void setGraphicsConfiguration(AbstractGraphicsConfiguration cfg) {
+        config = cfg;
+    }
+    
+    @Override
+    public final int getScreenIndex() {
+        return getGraphicsConfiguration().getScreen().getIndex();
+    }
+
+    @Override
+    public abstract long getSurfaceHandle();
+
+    @Override
+    public abstract void setSurfaceHandle(long surfaceHandle);
+    
+    @Override
+    public final int getWidth() {
+        return upstream.getWidth(this);
+    }
+
+    @Override
+    public final int getHeight() {
+        return upstream.getHeight(this);
+    }
+
+    @Override
+    public boolean surfaceSwap() {
+        return false;
+    }
+
+    @Override
+    public void addSurfaceUpdatedListener(SurfaceUpdatedListener l) {
+        surfaceUpdatedHelper.addSurfaceUpdatedListener(l);
+    }
+
+    @Override
+    public void addSurfaceUpdatedListener(int index, SurfaceUpdatedListener l) throws IndexOutOfBoundsException {
+        surfaceUpdatedHelper.addSurfaceUpdatedListener(index, l);
+    }
+
+    @Override
+    public void removeSurfaceUpdatedListener(SurfaceUpdatedListener l) {
+        surfaceUpdatedHelper.removeSurfaceUpdatedListener(l);
+    }
+
+    @Override
+    public void surfaceUpdated(Object updater, NativeSurface ns, long when) {
+        surfaceUpdatedHelper.surfaceUpdated(updater, ns, when);
+    }
+
+    @Override
+    public int lockSurface() throws NativeWindowException, RuntimeException  {
+        surfaceLock.lock();
+        int res = surfaceLock.getHoldCount() == 1 ? LOCK_SURFACE_NOT_READY : LOCK_SUCCESS; // new lock ?
+
+        if ( LOCK_SURFACE_NOT_READY == res ) {
+            try {
+                final AbstractGraphicsDevice adevice = getGraphicsConfiguration().getScreen().getDevice();
+                adevice.lock();
+                try {
+                    res = lockSurfaceImpl();
+                    if(LOCK_SUCCESS == res && surfaceHandle_old != getSurfaceHandle()) {
+                        res = LOCK_SURFACE_CHANGED;
+                        if(DEBUG) {
+                            System.err.println("ProxySurfaceImpl: surface change 0x"+Long.toHexString(surfaceHandle_old)+" -> 0x"+Long.toHexString(getSurfaceHandle()));
+                            // Thread.dumpStack();
+                        }
+                    }
+                } finally {
+                    if (LOCK_SURFACE_NOT_READY >= res) {
+                        adevice.unlock();
+                    }
+                }
+            } finally {
+                if (LOCK_SURFACE_NOT_READY >= res) {
+                    surfaceLock.unlock();
+                }
+            }
+        }
+        return res;
+    }
+
+    @Override
+    public final void unlockSurface() {
+        surfaceLock.validateLocked();
+        surfaceHandle_old = getSurfaceHandle();
+
+        if (surfaceLock.getHoldCount() == 1) {
+            final AbstractGraphicsDevice adevice = getGraphicsConfiguration().getScreen().getDevice();
+            try {
+                unlockSurfaceImpl();
+            } finally {
+                adevice.unlock();
+            }
+        }
+        surfaceLock.unlock();
+    }
+
+    protected abstract int lockSurfaceImpl();
+
+    protected abstract void unlockSurfaceImpl() ;
+
+    public final void validateSurfaceLocked() {
+        surfaceLock.validateLocked();
+    }
+
+    @Override
+    public final boolean isSurfaceLockedByOtherThread() {
+        return surfaceLock.isLockedByOtherThread();
+    }
+
+    @Override
+    public final Thread getSurfaceLockOwner() {
+        return surfaceLock.getOwner();
+    }
+    
+    public final StringBuilder getUpstreamOptionBits(StringBuilder sink) {
+        if(null == sink) {
+            sink = new StringBuilder();
+        }
+        sink.append("UOB[ ");
+        if(0 == implBitfield) {
+            sink.append("]");
+            return sink;
+        }
+        boolean needsOr = false;
+        if( 0 != ( implBitfield & OPT_PROXY_OWNS_UPSTREAM_SURFACE ) ) {
+            sink.append("OWNS_SURFACE");
+            needsOr = true;
+        }
+        if( 0 != ( implBitfield & OPT_PROXY_OWNS_UPSTREAM_DEVICE ) ) {
+            if(needsOr) {
+                sink.append(" | ");
+            }
+            sink.append("OWNS_DEVICE");
+            needsOr = true;
+        }
+        if( 0 != ( implBitfield & OPT_UPSTREAM_WINDOW_INVISIBLE ) ) {
+            if(needsOr) {
+                sink.append(" | ");
+            }
+            sink.append("WINDOW_INVISIBLE");
+            needsOr = true;
+        }
+        sink.append(" ]");
+        return sink;
+    }
+    
+    @Override
+    public final int getUpstreamOptionBits() { return implBitfield; }
+    
+    @Override
+    public final boolean containsUpstreamOptionBits(int v) {
+        return v == ( implBitfield & v ) ;
+    }
+    
+    @Override
+    public final void addUpstreamOptionBits(int v) { implBitfield |= v; }
+    
+    @Override
+    public final void clearUpstreamOptionBits(int v) { implBitfield &= ~v; }
+    
+    @Override
+    public StringBuilder toString(StringBuilder sink) {
+        if(null == sink) {
+            sink = new StringBuilder();
+        }
+        sink.append(getUpstreamSurfaceHook()).
+        append(", displayHandle 0x" + Long.toHexString(getDisplayHandle())).
+        append(", surfaceHandle 0x" + Long.toHexString(getSurfaceHandle())).
+        append(", size " + getWidth() + "x" + getHeight()).append(", ");
+        getUpstreamOptionBits(sink);
+        sink.append(", surfaceLock "+surfaceLock);
+        return sink;
+    }
+    
+    @Override
+    public String toString() {
+        StringBuilder msg = new StringBuilder();
+        msg.append(getClass().getSimpleName()).append("[ ");
+        toString(msg);
+        msg.append(" ]");
+        return msg.toString();
+    }
+
+}
diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/WrappedSurface.java b/src/nativewindow/classes/jogamp/nativewindow/WrappedSurface.java
index b7f6ba45d..e544bc61a 100644
--- a/src/nativewindow/classes/com/jogamp/nativewindow/WrappedSurface.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/WrappedSurface.java
@@ -26,17 +26,46 @@
  * or implied, of JogAmp Community.
  */
 
-package com.jogamp.nativewindow;
+package jogamp.nativewindow;
 
 import javax.media.nativewindow.AbstractGraphicsConfiguration;
+import javax.media.nativewindow.AbstractGraphicsDevice;
 import javax.media.nativewindow.ProxySurface;
+import javax.media.nativewindow.UpstreamSurfaceHook;
 
-public class WrappedSurface extends ProxySurface {
-  protected long surfaceHandle;  
+import com.jogamp.nativewindow.UpstreamSurfaceHookMutableSize;
 
-  public WrappedSurface(AbstractGraphicsConfiguration cfg, long handle, int initialWidth, int initialHeight, UpstreamSurfaceHook upstream) {
-    super(cfg, initialWidth, initialHeight, upstream);
-    surfaceHandle=handle;
+public class WrappedSurface extends ProxySurfaceImpl {
+  protected long surfaceHandle;
+
+  /**
+   * Utilizes a {@link UpstreamSurfaceHook.MutableSize} to hold the size information,
+   * which is being passed to the {@link ProxySurface} instance.
+   * 
+   * @param cfg the {@link AbstractGraphicsConfiguration} to be used
+   * @param handle the wrapped pre-existing native surface handle, maybe 0 if not yet determined
+   * @param initialWidth
+   * @param initialHeight
+   * @param ownsDevice <code>true</code> if this {@link ProxySurface} instance
+   *                  owns the {@link AbstractGraphicsConfiguration}'s {@link AbstractGraphicsDevice},
+   *                  otherwise <code>false</code>. Owning the device implies closing it at {@link #destroyNotify()}.
+   */
+  public WrappedSurface(AbstractGraphicsConfiguration cfg, long handle, int initialWidth, int initialHeight, boolean ownsDevice) {
+      super(cfg, new UpstreamSurfaceHookMutableSize(initialWidth, initialHeight), ownsDevice);
+      surfaceHandle=handle;
+  }
+  
+  /**
+   * @param cfg the {@link AbstractGraphicsConfiguration} to be used
+   * @param handle the wrapped pre-existing native surface handle, maybe 0 if not yet determined
+   * @param upstream the {@link UpstreamSurfaceHook} to be used
+   * @param ownsDevice <code>true</code> if this {@link ProxySurface} instance
+   *                  owns the {@link AbstractGraphicsConfiguration}'s {@link AbstractGraphicsDevice},
+   *                  otherwise <code>false</code>.
+   */
+  public WrappedSurface(AbstractGraphicsConfiguration cfg, long handle, UpstreamSurfaceHook upstream, boolean ownsDevice) {
+      super(cfg, upstream, ownsDevice);
+      surfaceHandle=handle;
   }
 
   @Override
@@ -63,16 +92,4 @@ public class WrappedSurface extends ProxySurface {
   protected final void unlockSurfaceImpl() {
   }
 
-  @Override
-  public String toString() {
-    final UpstreamSurfaceHook ush = getUpstreamSurfaceHook();
-    final String ush_s = null != ush ? ( ush.getClass().getName() + ": " + ush ) : "nil"; 
-    
-    return "WrappedSurface[config " + getPrivateGraphicsConfiguration()+
-           ", displayHandle 0x" + Long.toHexString(getDisplayHandle()) +
-           ", surfaceHandle 0x" + Long.toHexString(getSurfaceHandle()) +
-           ", size " + getWidth() + "x" + getHeight() +
-           ", surfaceLock "+surfaceLock+
-           ", upstreamSurfaceHook "+ush_s+"]";
-  }
 }
diff --git a/src/nativewindow/classes/jogamp/nativewindow/jawt/macosx/MacOSXJAWTWindow.java b/src/nativewindow/classes/jogamp/nativewindow/jawt/macosx/MacOSXJAWTWindow.java
index e81d61e0f..5fd242247 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/jawt/macosx/MacOSXJAWTWindow.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/jawt/macosx/MacOSXJAWTWindow.java
@@ -51,7 +51,6 @@ import javax.media.nativewindow.NativeWindowException;
 import javax.media.nativewindow.MutableSurface;
 import javax.media.nativewindow.util.Point;
 
-import com.jogamp.nativewindow.MutableGraphicsConfiguration;
 import com.jogamp.nativewindow.awt.JAWTWindow;
 
 import jogamp.nativewindow.jawt.JAWT;
@@ -71,17 +70,18 @@ public class MacOSXJAWTWindow extends JAWTWindow implements MutableSurface {
   }
 
   protected void invalidateNative() {
-      surfaceHandle=0;
+      offscreenSurfaceHandle=0;
+      offscreenSurfaceHandleSet=false;
       if(isOffscreenLayerSurfaceEnabled()) {
           if(0 != rootSurfaceLayerHandle) {
               OSXUtil.DestroyCALayer(rootSurfaceLayerHandle);
               rootSurfaceLayerHandle = 0;
           }
-          if(0 != drawable) {
-              OSXUtil.DestroyNSWindow(drawable);
-              drawable = 0;
+          if(0 != windowHandle) {
+              OSXUtil.DestroyNSWindow(windowHandle);
           }
       }
+      windowHandle=0;
   }
 
   protected void attachSurfaceLayerImpl(final long layerHandle) {
@@ -92,8 +92,14 @@ public class MacOSXJAWTWindow extends JAWTWindow implements MutableSurface {
       OSXUtil.RemoveCASublayer(rootSurfaceLayerHandle, layerHandle);
   }
     
-  public long getSurfaceHandle() {
-    return isOffscreenLayerSurfaceEnabled() ? surfaceHandle : super.getSurfaceHandle() ;
+  @Override
+  public final long getWindowHandle() {
+    return windowHandle;
+  }
+  
+  @Override
+  public final long getSurfaceHandle() {
+    return offscreenSurfaceHandleSet ? offscreenSurfaceHandle : drawable /* super.getSurfaceHandle() */ ;
   }
   
   public void setSurfaceHandle(long surfaceHandle) {
@@ -103,7 +109,8 @@ public class MacOSXJAWTWindow extends JAWTWindow implements MutableSurface {
       if(DEBUG) {
         System.err.println("MacOSXJAWTWindow.setSurfaceHandle(): 0x"+Long.toHexString(surfaceHandle));
       }
-      this.surfaceHandle = surfaceHandle;
+      this.offscreenSurfaceHandle = surfaceHandle;
+      this.offscreenSurfaceHandleSet = true;
   }
 
   protected JAWT fetchJAWTImpl() throws NativeWindowException {
@@ -167,6 +174,7 @@ public class MacOSXJAWTWindow extends JAWTWindow implements MutableSurface {
           unlockSurfaceImpl();
           return NativeWindow.LOCK_SURFACE_NOT_READY;
         } else {
+          windowHandle = OSXUtil.GetNSWindow(drawable);
           ret = NativeWindow.LOCK_SUCCESS;
         }
     } else {
@@ -177,36 +185,46 @@ public class MacOSXJAWTWindow extends JAWTWindow implements MutableSurface {
          * The actual surface/ca-layer shall be created/attached 
          * by the upper framework (JOGL) since they require more information. 
          */
+        String errMsg = null;
         if(0 == drawable) {
-            drawable = OSXUtil.CreateNSWindow(0, 0, getBounds().getWidth(), getBounds().getHeight());
-            if(0 == drawable) {
-              unlockSurfaceImpl();
-              throw new NativeWindowException("Unable to created dummy NSWindow (layered case)");
+            windowHandle = OSXUtil.CreateNSWindow(0, 0, 64, 64);
+            if(0 == windowHandle) {
+              errMsg = "Unable to create dummy NSWindow (layered case)";
+            } else {
+                drawable = OSXUtil.GetNSView(windowHandle);
+                if(0 == drawable) {
+                  errMsg = "Null NSView of NSWindow 0x"+Long.toHexString(windowHandle);
+                }
+            }
+            if(null == errMsg) {
+                // fix caps reflecting offscreen! (no GL available here ..)
+                Capabilities caps = (Capabilities) getGraphicsConfiguration().getChosenCapabilities().cloneMutable();
+                caps.setOnscreen(false);
+                setChosenCapabilities(caps);
             }
-            // fix caps reflecting offscreen!
-            Capabilities caps = (Capabilities) getPrivateGraphicsConfiguration().getChosenCapabilities().cloneMutable();
-            caps.setOnscreen(false);
-            getPrivateGraphicsConfiguration().setChosenCapabilities(caps);
-            caps = (Capabilities) getGraphicsConfiguration().getChosenCapabilities().cloneMutable();
-            caps.setOnscreen(false);
-            ((MutableGraphicsConfiguration)getGraphicsConfiguration()).setChosenCapabilities(caps);
         }
-        if(0 == rootSurfaceLayerHandle) {
-            rootSurfaceLayerHandle = OSXUtil.CreateCALayer(bounds.getX(), bounds.getY(), bounds.getWidth(), bounds.getHeight());
-            if(0 == rootSurfaceLayerHandle) {
-              OSXUtil.DestroyNSWindow(drawable);
-              drawable = 0;
-              unlockSurfaceImpl();
-              throw new NativeWindowException("Could not create root CALayer: "+this);                
+        if(null == errMsg) {
+            if(0 == rootSurfaceLayerHandle) {        
+                rootSurfaceLayerHandle = OSXUtil.CreateCALayer(bounds.getX(), bounds.getY(), bounds.getWidth(), bounds.getHeight());
+                if(0 == rootSurfaceLayerHandle) {
+                  errMsg = "Could not create root CALayer";                
+                } else if(!SetJAWTRootSurfaceLayer0(dsi.getBuffer(), rootSurfaceLayerHandle)) {
+                  errMsg = "Could not set JAWT rootSurfaceLayerHandle 0x"+Long.toHexString(rootSurfaceLayerHandle);
+                }
             }
-            if(!SetJAWTRootSurfaceLayer0(dsi.getBuffer(), rootSurfaceLayerHandle)) {
+        }
+        if(null != errMsg) {
+            if(0 != rootSurfaceLayerHandle) {
               OSXUtil.DestroyCALayer(rootSurfaceLayerHandle);
               rootSurfaceLayerHandle = 0;
-              OSXUtil.DestroyNSWindow(drawable);
-              drawable = 0;
-              unlockSurfaceImpl();
-              throw new NativeWindowException("Could not set JAWT rootSurfaceLayerHandle: "+this);
             }
+            if(0 != windowHandle) {
+              OSXUtil.DestroyNSWindow(windowHandle);
+              windowHandle = 0;
+            }
+            drawable = 0;
+            unlockSurfaceImpl();
+            throw new NativeWindowException(errMsg+": "+this);
         }
         ret = NativeWindow.LOCK_SUCCESS;
     }
@@ -264,7 +282,9 @@ public class MacOSXJAWTWindow extends JAWTWindow implements MutableSurface {
   
   private long rootSurfaceLayerHandle = 0; // attached to the JAWT_SurfaceLayer
   
-  private long surfaceHandle = 0;
+  private long windowHandle = 0;
+  private long offscreenSurfaceHandle = 0;
+  private boolean offscreenSurfaceHandleSet = false;
    
   // Workaround for instance of 4796548
   private boolean firstLock = true;
diff --git a/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXDummyUpstreamSurfaceHook.java b/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXDummyUpstreamSurfaceHook.java
new file mode 100644
index 000000000..de3206c0c
--- /dev/null
+++ b/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXDummyUpstreamSurfaceHook.java
@@ -0,0 +1,56 @@
+package jogamp.nativewindow.macosx;
+
+import javax.media.nativewindow.NativeSurface;
+import javax.media.nativewindow.NativeWindowException;
+import javax.media.nativewindow.ProxySurface;
+import javax.media.nativewindow.UpstreamSurfaceHook;
+
+import com.jogamp.nativewindow.UpstreamSurfaceHookMutableSize;
+
+public class OSXDummyUpstreamSurfaceHook extends UpstreamSurfaceHookMutableSize {
+    long nsWindow;
+    
+    /**
+     * @param width the initial width as returned by {@link NativeSurface#getWidth()} via {@link UpstreamSurfaceHook#getWidth(ProxySurface)}, 
+     *        not the actual dummy surface width. 
+     *        The latter is platform specific and small
+     * @param height the initial height as returned by {@link NativeSurface#getHeight()} via {@link UpstreamSurfaceHook#getHeight(ProxySurface)}, 
+     *        not the actual dummy surface height,
+     *        The latter is platform specific and small
+     */
+    public OSXDummyUpstreamSurfaceHook(int width, int height) {
+        super(width, height);
+        nsWindow = 0;
+    }
+    
+    @Override
+    public final void create(ProxySurface s) {
+        if(0 == nsWindow && 0 == s.getSurfaceHandle()) {
+            nsWindow = OSXUtil.CreateNSWindow(0, 0, 64, 64);
+            if(0 == nsWindow) {
+                throw new NativeWindowException("Error NS window 0");
+            }
+            long nsView = OSXUtil.GetNSView(nsWindow);
+            if(0 == nsView) {
+                throw new NativeWindowException("Error NS view 0");
+            }
+            s.setSurfaceHandle(nsView);
+            s.addUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE );            
+        }
+        s.addUpstreamOptionBits(ProxySurface.OPT_UPSTREAM_WINDOW_INVISIBLE);
+    }
+    
+    @Override
+    public final void destroy(ProxySurface s) {
+        if( s.containsUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE ) ) {
+            if( 0 == nsWindow || 0 == s.getSurfaceHandle() ) {
+                throw new InternalError("Owns upstream surface, but no OSX view/window: "+s+", nsWindow 0x"+Long.toHexString(nsWindow));
+            }
+            OSXUtil.DestroyNSWindow(nsWindow);
+            nsWindow = 0;
+            s.setSurfaceHandle(0);
+            s.clearUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE );
+        }
+    }
+
+}
diff --git a/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java b/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java
index 149ebdf4a..b7a83e133 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java
@@ -72,6 +72,10 @@ public class OSXUtil {
         return isNSView0(object);
     }
     
+    public static boolean isNSWindow(long object) {
+        return isNSWindow0(object);
+    }
+    
     /**
      * In case the <code>windowOrView</code> is top-level,
      * you shall set <code>topLevel</code> to true where
@@ -114,6 +118,9 @@ public class OSXUtil {
     public static long GetNSView(long nsWindow) {
       return GetNSView0(nsWindow);
     }
+    public static long GetNSWindow(long nsView) {
+      return GetNSWindow0(nsView);
+    }
     
     public static long CreateCALayer(int x, int y, int width, int height) {
         return CreateCALayer0(x, y, width, height);
@@ -149,6 +156,11 @@ public class OSXUtil {
         return IsMainThread0();
     }
     
+    /** Returns the screen refresh rate in Hz. If unavailable, returns 60Hz. */
+    public static int GetScreenRefreshRate(int scrn_idx) {
+        return GetScreenRefreshRate0(scrn_idx);
+    }
+    
     /***
     private static boolean  isAWTEDTMainThreadInit = false;
     private static boolean  isAWTEDTMainThread;
@@ -172,15 +184,18 @@ public class OSXUtil {
     
     private static native boolean initIDs0();
     private static native boolean isNSView0(long object);
+    private static native boolean isNSWindow0(long object);
     private static native Object GetLocationOnScreen0(long windowOrView, int src_x, int src_y);
     private static native Object GetInsets0(long windowOrView);
     private static native long CreateNSWindow0(int x, int y, int width, int height);
     private static native void DestroyNSWindow0(long nsWindow);
     private static native long GetNSView0(long nsWindow);
+    private static native long GetNSWindow0(long nsView);
     private static native long CreateCALayer0(int x, int y, int width, int height);
     private static native void AddCASublayer0(long rootCALayer, long subCALayer);
     private static native void RemoveCASublayer0(long rootCALayer, long subCALayer);
     private static native void DestroyCALayer0(long caLayer);
     private static native void RunOnMainThread0(boolean waitUntilDone, Runnable runnable);
     private static native boolean IsMainThread0();
+    private static native int GetScreenRefreshRate0(int scrn_idx);
 }
diff --git a/src/nativewindow/classes/jogamp/nativewindow/windows/GDIDummyUpstreamSurfaceHook.java b/src/nativewindow/classes/jogamp/nativewindow/windows/GDIDummyUpstreamSurfaceHook.java
new file mode 100644
index 000000000..aa5f3dac5
--- /dev/null
+++ b/src/nativewindow/classes/jogamp/nativewindow/windows/GDIDummyUpstreamSurfaceHook.java
@@ -0,0 +1,50 @@
+package jogamp.nativewindow.windows;
+
+import javax.media.nativewindow.NativeSurface;
+import javax.media.nativewindow.NativeWindowException;
+import javax.media.nativewindow.ProxySurface;
+import javax.media.nativewindow.UpstreamSurfaceHook;
+
+import com.jogamp.nativewindow.UpstreamSurfaceHookMutableSize;
+
+public class GDIDummyUpstreamSurfaceHook extends UpstreamSurfaceHookMutableSize {
+    /**
+     * @param width the initial width as returned by {@link NativeSurface#getWidth()} via {@link UpstreamSurfaceHook#getWidth(ProxySurface)}, 
+     *        not the actual dummy surface width. 
+     *        The latter is platform specific and small
+     * @param height the initial height as returned by {@link NativeSurface#getHeight()} via {@link UpstreamSurfaceHook#getHeight(ProxySurface)}, 
+     *        not the actual dummy surface height,
+     *        The latter is platform specific and small
+     */
+    public GDIDummyUpstreamSurfaceHook(int width, int height) {
+        super(width, height);
+    }
+    
+    @Override
+    public final void create(ProxySurface s) {
+        final GDISurface ms = (GDISurface)s;
+        if(0 == ms.getWindowHandle()) {            
+            final long windowHandle = GDIUtil.CreateDummyWindow(0, 0, 64, 64);
+            if(0 == windowHandle) {
+                throw new NativeWindowException("Error windowHandle 0, werr: "+GDI.GetLastError());
+            }    
+            ms.setWindowHandle(windowHandle);
+            ms.addUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE );            
+        }
+        s.addUpstreamOptionBits(ProxySurface.OPT_UPSTREAM_WINDOW_INVISIBLE);
+    }
+    
+    @Override
+    public final void destroy(ProxySurface s) {
+        final GDISurface ms = (GDISurface)s;
+        if( ms.containsUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE ) ) {
+            if( 0 == ms.getWindowHandle() ) {
+                throw new InternalError("Owns upstream surface, but no GDI window: "+ms);
+            }
+            GDI.ShowWindow(ms.getWindowHandle(), GDI.SW_HIDE);
+            GDIUtil.DestroyDummyWindow(ms.getWindowHandle());
+            ms.setWindowHandle(0);
+            ms.clearUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE );
+        }
+    }    
+}
diff --git a/src/nativewindow/classes/jogamp/nativewindow/windows/GDISurface.java b/src/nativewindow/classes/jogamp/nativewindow/windows/GDISurface.java
index e368aa6a1..3db2b5fc9 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/windows/GDISurface.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/windows/GDISurface.java
@@ -29,9 +29,13 @@
 package jogamp.nativewindow.windows;
 
 import javax.media.nativewindow.AbstractGraphicsConfiguration;
+import javax.media.nativewindow.AbstractGraphicsDevice;
 import javax.media.nativewindow.NativeWindowException;
 import javax.media.nativewindow.ProxySurface;
-import javax.media.nativewindow.ProxySurface.UpstreamSurfaceHook;
+import javax.media.nativewindow.UpstreamSurfaceHook;
+
+import jogamp.nativewindow.ProxySurfaceImpl;
+import jogamp.nativewindow.windows.GDI;
 
 
 /**
@@ -40,12 +44,20 @@ import javax.media.nativewindow.ProxySurface.UpstreamSurfaceHook;
  * The latter will get and release the HDC.
  * The size via getWidth()/getHeight() is invalid.
  */
-public class GDISurface extends ProxySurface {
+public class GDISurface extends ProxySurfaceImpl {
   protected long windowHandle;
   protected long surfaceHandle;
 
-  public GDISurface(AbstractGraphicsConfiguration cfg, long windowHandle, int initialWidth, int initialHeight, UpstreamSurfaceHook upstream) {
-    super(cfg, initialWidth, initialHeight, upstream);
+  /**
+   * @param cfg the {@link AbstractGraphicsConfiguration} to be used
+   * @param windowHandle the wrapped pre-existing native window handle, maybe 0 if not yet determined
+   * @param upstream the {@link UpstreamSurfaceHook} to be used
+   * @param ownsDevice <code>true</code> if this {@link ProxySurface} instance
+   *                  owns the {@link AbstractGraphicsConfiguration}'s {@link AbstractGraphicsDevice},
+   *                  otherwise <code>false</code>. Owning the device implies closing it at {@link #destroyNotify()}.
+   */
+  public GDISurface(AbstractGraphicsConfiguration cfg, long windowHandle, UpstreamSurfaceHook upstream, boolean ownsDevice) {
+    super(cfg, upstream, ownsDevice);
     this.windowHandle=windowHandle;
     this.surfaceHandle=0;
   }
@@ -114,18 +126,4 @@ public class GDISurface extends ProxySurface {
   final public long getSurfaceHandle() {
     return surfaceHandle;
   }
-
-  @Override
-  final public String toString() {
-    final UpstreamSurfaceHook ush = getUpstreamSurfaceHook();
-    final String ush_s = null != ush ? ( ush.getClass().getName() + ": " + ush ) : "nil";       
-    return getClass().getSimpleName()+"[config "+getPrivateGraphicsConfiguration()+
-                ", displayHandle 0x"+Long.toHexString(getDisplayHandle())+
-                ", windowHandle 0x"+Long.toHexString(windowHandle)+
-                ", surfaceHandle 0x"+Long.toHexString(getSurfaceHandle())+
-                ", size "+getWidth()+"x"+getHeight()+
-                ", surfaceLock "+surfaceLock+
-                ", upstreamSurfaceHook "+ush_s+"]";
-  }
-
 }
diff --git a/src/nativewindow/classes/jogamp/nativewindow/x11/X11DummyUpstreamSurfaceHook.java b/src/nativewindow/classes/jogamp/nativewindow/x11/X11DummyUpstreamSurfaceHook.java
new file mode 100644
index 000000000..55a29dd5e
--- /dev/null
+++ b/src/nativewindow/classes/jogamp/nativewindow/x11/X11DummyUpstreamSurfaceHook.java
@@ -0,0 +1,60 @@
+package jogamp.nativewindow.x11;
+
+import javax.media.nativewindow.NativeSurface;
+import javax.media.nativewindow.NativeWindowException;
+import javax.media.nativewindow.ProxySurface;
+import javax.media.nativewindow.UpstreamSurfaceHook;
+
+import jogamp.nativewindow.x11.X11Lib;
+
+import com.jogamp.nativewindow.UpstreamSurfaceHookMutableSize;
+import com.jogamp.nativewindow.x11.X11GraphicsConfiguration;
+import com.jogamp.nativewindow.x11.X11GraphicsDevice;
+import com.jogamp.nativewindow.x11.X11GraphicsScreen;
+
+public class X11DummyUpstreamSurfaceHook extends UpstreamSurfaceHookMutableSize {
+    /**
+     * @param width the initial width as returned by {@link NativeSurface#getWidth()} via {@link UpstreamSurfaceHook#getWidth(ProxySurface)}, 
+     *        not the actual dummy surface width. 
+     *        The latter is platform specific and small
+     * @param height the initial height as returned by {@link NativeSurface#getHeight()} via {@link UpstreamSurfaceHook#getHeight(ProxySurface)}, 
+     *        not the actual dummy surface height,
+     *        The latter is platform specific and small
+     */
+    public X11DummyUpstreamSurfaceHook(int width, int height) {
+        super(width, height);
+    }
+    
+    @Override
+    public final void create(ProxySurface s) {
+        final X11GraphicsConfiguration cfg = (X11GraphicsConfiguration) s.getGraphicsConfiguration();
+        final X11GraphicsScreen screen = (X11GraphicsScreen) cfg.getScreen();
+        final X11GraphicsDevice device = (X11GraphicsDevice) screen.getDevice();
+        if(0 == device.getHandle()) {
+            device.open();
+            s.addUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_DEVICE );
+        }
+        if( 0 == s.getSurfaceHandle() ) {
+            final long windowHandle = X11Lib.CreateDummyWindow(device.getHandle(), screen.getIndex(), cfg.getXVisualID(), 64, 64);
+            if(0 == windowHandle) {
+                throw new NativeWindowException("Creating dummy window failed w/ "+cfg);
+            }
+            s.setSurfaceHandle(windowHandle);
+            s.addUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE );            
+        }
+        s.addUpstreamOptionBits(ProxySurface.OPT_UPSTREAM_WINDOW_INVISIBLE);
+    }
+    
+    @Override
+    public final void destroy(ProxySurface s) {
+        if( s.containsUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE ) ) {
+            final X11GraphicsDevice device = (X11GraphicsDevice) s.getGraphicsConfiguration().getScreen().getDevice();
+            if( 0 == s.getSurfaceHandle() ) {
+                throw new InternalError("Owns upstream surface, but no X11 window: "+s);
+            }
+            X11Lib.DestroyDummyWindow(device.getHandle(), s.getSurfaceHandle());            
+            s.setSurfaceHandle(0);
+            s.clearUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE );
+        }
+    }
+}