Fix Bug 720: Unify all platform specific GLContextImpl specializations; Fix Bug 719 - Windows BITMAP Offscreen Orientation is not propagated through API

Fix Bug 719 - Windows BITMAP Offscreen Orientation is not propagated through API
  Depends on Bug 720, since cleaning up GLContextImpl* is required to move
  property 'GLContext.isGLOrientationFlippedVertical()'
  to 'GLDrawable.isGLOriented()' where it belongs!

  Windows BITMAP GLDrawable impl. isGLOriented() shall return false,
  while we keep the BITMAPINFOHEADER's height field negative
  to remove the need for vertical flip when used w/ AWT or Windows, ..

  Then property 'GLDrawable.isGLOriented()' has to be recognized throughout the
  utility functions, i.e. TextureData's mustFlipVertically and hence TextureIO writer.

Fix Bug 720: Unify all platform specific GLContextImpl specializations
  GLContextImpl shall have only _one_ unique platform derivative
  to allow proper swapping of GLDrawables of any type via:
    - 'GLAutoDrawable.setContext(GLContext newCtx, boolean destroyPrevCtx)', which calls
    - 'GLContext.setGLDrawable(GLDrawable readWrite, boolean setWriteOnly)'

  Exception: External context may be specialized.

  All drawable specific property handling shall be provided
  and implemented (if possible) via GLDrawable specializations.

- GLContext.isGLOrientationFlippedVertical() -> GLDrawable.isGLOriented()
  - PNGImage.createFromData() takes 'isGLOriented' to properly handle vertical flipping simply by line ordering
  - TextureIO's PNG writer passes TextureData's getMustFlipVertically() as isGLOriented to PNGImage.createFromData()
  - GLReadBufferUtil respects GLDrawable's isGLOriented() when creating TextureData instance.
  - Screenshot respects GLDrawable's isGLOriented()

- Screenshot is deprecated, use GLReadBufferUtil.

- Removed all PBuffer attributes, i.e. floatingPoint, RenderToTexture and RenderToTextureRectangle.
   - Allows removal of special pbuffer handling in GLContext* implementations.
   - Removed also from GLCapabilities*
   - Removed from deprecated GLPbuffer

  Impact:
    - Low, users who desire to render into a texture shall use our FBO GLOffscreenDrawable.
    - Only use case was the deprecated GLPbuffer
    - floating point framebuffer technology is still patented anyways :)

- Removed Java2DGLContext, which was only used for OSX's GLJPanel Java2D bridge,
  which is no more supported anyways.

42 files changed, 103 insertions, 1362 deletions

diff --git a/src/jogl/classes/jogamp/opengl/GLAutoDrawableBase.java b/src/jogl/classes/jogamp/opengl/GLAutoDrawableBase.java
index 705f8b94e..53fe6c3c9 100644
--- a/src/jogl/classes/jogamp/opengl/GLAutoDrawableBase.java
+++ b/src/jogl/classes/jogamp/opengl/GLAutoDrawableBase.java
@@ -655,6 +655,12 @@ public abstract class GLAutoDrawableBase implements GLAutoDrawable, GLStateKeepe
     }
 
     @Override
+    public boolean isGLOriented() {
+        final GLDrawable _drawable = drawable;
+        return null != _drawable ? _drawable.isGLOriented() : true;
+    }
+  
+    @Override
     public final GLCapabilitiesImmutable getChosenGLCapabilities() {
         final GLDrawable _drawable = drawable;
         return null != _drawable ? _drawable.getChosenGLCapabilities() : null;
diff --git a/src/jogl/classes/jogamp/opengl/GLContextImpl.java b/src/jogl/classes/jogamp/opengl/GLContextImpl.java
index 7b760ed0e..883f90591 100644
--- a/src/jogl/classes/jogamp/opengl/GLContextImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLContextImpl.java
@@ -1766,11 +1766,6 @@ public abstract class GLContextImpl extends GLContext {
   }
 
   @Override
-  public boolean isGLOrientationFlippedVertical() {
-      return true;
-  }
-
-  @Override
   public int getDefaultPixelDataType() {
       if(!pixelDataTypeEvaluated) {
           synchronized(this) {
@@ -1804,6 +1799,8 @@ public abstract class GLContextImpl extends GLContext {
         pixelDataFormat=GL.GL_RGBA;
         pixelDataType = GL.GL_UNSIGNED_BYTE;
     }            
+    // TODO: Consider:
+    // return gl.isGL2GL3()?GL2GL3.GL_UNSIGNED_INT_8_8_8_8_REV:GL.GL_UNSIGNED_SHORT_5_5_5_1;
   }
 
   //----------------------------------------------------------------------
diff --git a/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java b/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java
index 92ec96ad7..7ef99b241 100644
--- a/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java
@@ -469,17 +469,6 @@ public abstract class GLDrawableFactoryImpl extends GLDrawableFactory {
     return (GLDrawableFactoryImpl) getFactory(glp);
   }
 
-  //---------------------------------------------------------------------------
-  // Support for Java2D/JOGL bridge on Mac OS X; the external
-  // GLDrawable mechanism in the public API is sufficient to
-  // implement this functionality on all other platforms
-  //
-
-  public abstract boolean canCreateContextOnJava2DSurface(AbstractGraphicsDevice device);
-
-  public abstract GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
-    throws GLException;
-
   //----------------------------------------------------------------------
   // Gamma adjustment support
   // Thanks to the LWJGL team for illustrating how to make these
diff --git a/src/jogl/classes/jogamp/opengl/GLDrawableImpl.java b/src/jogl/classes/jogamp/opengl/GLDrawableImpl.java
index a2b99c7da..877e7b60b 100644
--- a/src/jogl/classes/jogamp/opengl/GLDrawableImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLDrawableImpl.java
@@ -283,6 +283,11 @@ public abstract class GLDrawableImpl implements GLDrawable {
     return surface.getHeight();
   }
 
+  @Override
+  public boolean isGLOriented() {
+      return true;      
+  }
+  
   /** 
    * {@link NativeSurface#lockSurface() Locks} the underlying windowing toolkit's {@link NativeSurface surface}.
    * <p>
diff --git a/src/jogl/classes/jogamp/opengl/GLPbufferImpl.java b/src/jogl/classes/jogamp/opengl/GLPbufferImpl.java
index ddc6d5917..b8841d6e2 100644
--- a/src/jogl/classes/jogamp/opengl/GLPbufferImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLPbufferImpl.java
@@ -49,7 +49,6 @@ import com.jogamp.common.util.locks.RecursiveLock;
 
 @SuppressWarnings("deprecation")
 public class GLPbufferImpl extends GLAutoDrawableBase implements GLPbuffer {
-  private int floatMode;
 
   public GLPbufferImpl(GLDrawableImpl pbufferDrawable, GLContextImpl pbufferContext) {
     super(pbufferDrawable, pbufferContext, true); // drawable := pbufferDrawable, context := pbufferContext  
@@ -59,28 +58,6 @@ public class GLPbufferImpl extends GLAutoDrawableBase implements GLPbuffer {
   // pbuffer specifics
   //
 
-  @Override
-  public void bindTexture() {
-    // Doesn't make much sense to try to do this on the event dispatch
-    // thread given that it has to be called while the context is current
-    context.bindPbufferToTexture();
-  }
-
-  @Override
-  public void releaseTexture() {
-    // Doesn't make much sense to try to do this on the event dispatch
-    // thread given that it has to be called while the context is current
-    context.releasePbufferFromTexture();
-  }
-
-  @Override
-  public int getFloatingPointMode() {
-    if (floatMode == 0) {
-      throw new GLException("Pbuffer not initialized, or floating-point support not requested");
-    }
-    return floatMode;
-  }
-
   //
   // GLDrawable delegation
   // 
@@ -119,22 +96,10 @@ public class GLPbufferImpl extends GLAutoDrawableBase implements GLPbuffer {
     _lock.lock(); // sync: context/drawable could been recreated/destroyed while animating
     try {
         if( null != context ) {
-          helper.invokeGL(drawable, context, defaultDisplayAction, initAction);
+          helper.invokeGL(drawable, context, defaultDisplayAction, defaultInitAction);
         }
     } finally {
         _lock.unlock();
     }
   }
-
-  //----------------------------------------------------------------------
-  // Internals only below this point
-  //
-
-  protected final Runnable initAction = new Runnable() {
-    @Override
-    public final void run() {
-        floatMode = context.getFloatingPointMode();
-        defaultInitAction.run();
-    } };
-  
 }
diff --git a/src/jogl/classes/jogamp/opengl/awt/Java2DGLContext.java b/src/jogl/classes/jogamp/opengl/awt/Java2DGLContext.java
deleted file mode 100644
index 4a5b1db54..000000000
--- a/src/jogl/classes/jogamp/opengl/awt/Java2DGLContext.java
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- * 
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- * 
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- * 
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- * 
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- * 
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- * 
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package jogamp.opengl.awt;
-
-import jogamp.opengl.*;
-import java.awt.Graphics;
-
-/** Provides a construct by which the shared GLJPanel code can
- * interact with a few methods in the Mac OS X-specific Java2D/JOGL
- * bridge implementation.
- */
-
-public interface Java2DGLContext {
-  public void setGraphics(Graphics g);
-}
diff --git a/src/jogl/classes/jogamp/opengl/egl/EGLContext.java b/src/jogl/classes/jogamp/opengl/egl/EGLContext.java
index 1c0cd0d3c..2b8ca31c9 100644
--- a/src/jogl/classes/jogamp/opengl/egl/EGLContext.java
+++ b/src/jogl/classes/jogamp/opengl/egl/EGLContext.java
@@ -56,7 +56,7 @@ import com.jogamp.gluegen.runtime.opengl.GLProcAddressResolver;
 import com.jogamp.nativewindow.egl.EGLGraphicsDevice;
 import com.jogamp.opengl.GLRendererQuirks;
 
-public abstract class EGLContext extends GLContextImpl {
+public class EGLContext extends GLContextImpl {
     private boolean eglQueryStringInitialized;
     private boolean eglQueryStringAvailable;
     private EGLExt _eglExt;
diff --git a/src/jogl/classes/jogamp/opengl/egl/EGLDrawableFactory.java b/src/jogl/classes/jogamp/opengl/egl/EGLDrawableFactory.java
index 9b87860cb..431de5159 100644
--- a/src/jogl/classes/jogamp/opengl/egl/EGLDrawableFactory.java
+++ b/src/jogl/classes/jogamp/opengl/egl/EGLDrawableFactory.java
@@ -779,15 +779,4 @@ public class EGLDrawableFactory extends GLDrawableFactoryImpl {
     protected GLDrawable createExternalGLDrawableImpl() {
         throw new GLException("Not yet implemented");
     }
-
-    @Override
-    public boolean canCreateContextOnJava2DSurface(AbstractGraphicsDevice device) {
-        return false;
-    }
-
-    @Override
-    public GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
-        throws GLException {
-        throw new GLException("Unimplemented on this platform");
-    }
 }
diff --git a/src/jogl/classes/jogamp/opengl/egl/EGLOnscreenContext.java b/src/jogl/classes/jogamp/opengl/egl/EGLOnscreenContext.java
deleted file mode 100644
index 325ad6142..000000000
--- a/src/jogl/classes/jogamp/opengl/egl/EGLOnscreenContext.java
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (c) 2008 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package jogamp.opengl.egl;
-
-import javax.media.opengl.*;
-
-public class EGLOnscreenContext extends EGLContext {
-    public EGLOnscreenContext(EGLOnscreenDrawable drawable, GLContext shareWith) {
-        super(drawable, shareWith);
-    }
-}
-
diff --git a/src/jogl/classes/jogamp/opengl/egl/EGLOnscreenDrawable.java b/src/jogl/classes/jogamp/opengl/egl/EGLOnscreenDrawable.java
index 6440cf1e5..19084ba19 100644
--- a/src/jogl/classes/jogamp/opengl/egl/EGLOnscreenDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/egl/EGLOnscreenDrawable.java
@@ -50,7 +50,7 @@ public class EGLOnscreenDrawable extends EGLDrawable {
 
     @Override
     public GLContext createContext(GLContext shareWith) {
-        return new EGLOnscreenContext(this, shareWith);
+        return new EGLContext(this, shareWith);
     }
 
     @Override
diff --git a/src/jogl/classes/jogamp/opengl/egl/EGLPbufferContext.java b/src/jogl/classes/jogamp/opengl/egl/EGLPbufferContext.java
deleted file mode 100644
index bb9eeb892..000000000
--- a/src/jogl/classes/jogamp/opengl/egl/EGLPbufferContext.java
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright (c) 2008 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package jogamp.opengl.egl;
-
-import javax.media.opengl.*;
-
-public class EGLPbufferContext extends EGLContext {
-    public EGLPbufferContext(EGLPbufferDrawable drawable, GLContext shareWith) {
-        super(drawable, shareWith);
-    }
-
-    @Override
-    public int getFloatingPointMode() {
-        return 0; // FIXME ??
-    }
-}
-
diff --git a/src/jogl/classes/jogamp/opengl/egl/EGLPbufferDrawable.java b/src/jogl/classes/jogamp/opengl/egl/EGLPbufferDrawable.java
index 9e5d9327b..45e39f5d1 100644
--- a/src/jogl/classes/jogamp/opengl/egl/EGLPbufferDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/egl/EGLPbufferDrawable.java
@@ -57,7 +57,7 @@ public class EGLPbufferDrawable extends EGLDrawable {
 
     @Override
     public GLContext createContext(GLContext shareWith) {
-        return new EGLPbufferContext(this, shareWith);
+        return new EGLContext(this, shareWith);
     }
 }
 
diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLContext.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLContext.java
index 6cab369cf..666cd30af 100644
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLContext.java
+++ b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLContext.java
@@ -80,7 +80,7 @@ import com.jogamp.opengl.util.PMVMatrix;
 import com.jogamp.opengl.util.glsl.ShaderCode;
 import com.jogamp.opengl.util.glsl.ShaderProgram;
 
-public abstract class MacOSXCGLContext extends GLContextImpl
+public class MacOSXCGLContext extends GLContextImpl
 {
   // Abstract interface for implementation of this context (either
   // NSOpenGL-based or CGL-based)
@@ -184,6 +184,9 @@ public abstract class MacOSXCGLContext extends GLContextImpl
   // CGL extension functions.
   private CGLExtProcAddressTable cglExtProcAddressTable;
 
+  private long updateHandle = 0;
+  private int lastWidth, lastHeight;
+  
   protected MacOSXCGLContext(GLDrawableImpl drawable,
                    GLContext shareWith) {
     super(drawable, shareWith);
@@ -280,9 +283,6 @@ public abstract class MacOSXCGLContext extends GLContextImpl
 
     MacOSXCGLGraphicsConfiguration config = (MacOSXCGLGraphicsConfiguration) drawable.getNativeSurface().getGraphicsConfiguration();
     GLCapabilitiesImmutable capabilitiesChosen = (GLCapabilitiesImmutable) config.getChosenCapabilities();
-    if (capabilitiesChosen.getPbufferFloatingPointBuffers() && !isTigerOrLater) {
-       throw new GLException("Floating-point pbuffers supported only on OS X 10.4 or later");
-    }
     GLProfile glp = capabilitiesChosen.getGLProfile();
     if(glp.isGLES1() || glp.isGLES2() || glp.isGL4() || glp.isGL3() && !isLionOrLater) {
         throw new GLException("OpenGL profile not supported on MacOSX "+Platform.getOSVersionNumber()+": "+glp);
@@ -311,6 +311,7 @@ public abstract class MacOSXCGLContext extends GLContextImpl
     if (!impl.makeCurrent(contextHandle)) {
       throw new GLException("Error making Context current: "+this);
     }
+    drawableUpdatedNotify();
   }
 
   @Override
@@ -322,18 +323,70 @@ public abstract class MacOSXCGLContext extends GLContextImpl
 
   @Override
   protected void destroyImpl() throws GLException {
+    releaseUpdateHandle();
     if(!impl.destroy(contextHandle)) {
         throw new GLException("Error destroying OpenGL Context: "+this);
     }
   }
   
+  private final long getUpdateHandle() {
+    if( 0 == updateHandle ) {
+        lastWidth = -1;
+        lastHeight = -1;
+        if( isCreated() && drawable.getChosenGLCapabilities().isOnscreen() && isNSContext() ) {
+            final boolean incompleteView;
+            final NativeSurface surface = drawable.getNativeSurface();
+            if( surface instanceof ProxySurface ) {
+              incompleteView = ((ProxySurface)surface).containsUpstreamOptionBits( ProxySurface.OPT_UPSTREAM_WINDOW_INVISIBLE );
+            } else {
+              incompleteView = false;
+            }
+            if(!incompleteView) {        
+                updateHandle = CGL.updateContextRegister(contextHandle, drawable.getHandle());
+                if(0 == updateHandle) {
+                    throw new InternalError("XXX2");
+                }
+            }
+        }
+    }
+    return updateHandle;
+  }
+  
+  private final void releaseUpdateHandle() {
+    if ( 0 != updateHandle ) {
+        CGL.updateContextUnregister(updateHandle);
+        updateHandle = 0;
+    }      
+  }
+  
+  @Override
+  protected void drawableUpdatedNotify() throws GLException {
+    if( drawable.getChosenGLCapabilities().isOnscreen() ) {
+        final long _updateHandle = getUpdateHandle();
+        final int w = drawable.getWidth();
+        final int h = drawable.getHeight();
+        final boolean updateContext = ( 0!=_updateHandle && CGL.updateContextNeedsUpdate(_updateHandle) ) ||
+                                      w != lastWidth || h != lastHeight;
+        if(updateContext) {
+            lastWidth = w;
+            lastHeight = h;
+            if (contextHandle == 0) {
+              throw new GLException("Context not created");
+            }
+            CGL.updateContext(contextHandle);
+        }
+    }
+  }
+  
   @Override
   protected void associateDrawable(boolean bound) {
       // context stuff depends on drawable stuff
       if(bound) {
           super.associateDrawable(true);   // 1) init drawable stuff
           impl.associateDrawable(true);    // 2) init context stuff
+          getUpdateHandle();
       } else {
+          releaseUpdateHandle();
           impl.associateDrawable(false);   // 1) free context stuff
           super.associateDrawable(false);  // 2) free drawable stuff
       }
diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLDrawableFactory.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLDrawableFactory.java
index 6c647108f..39178290a 100644
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLDrawableFactory.java
+++ b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLDrawableFactory.java
@@ -405,17 +405,6 @@ public class MacOSXCGLDrawableFactory extends GLDrawableFactoryImpl {
     throw new GLException("Not yet implemented");
   }
 
-  @Override
-  public boolean canCreateContextOnJava2DSurface(AbstractGraphicsDevice device) {
-    return false;
-  }
-
-  @Override
-  public GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
-    throws GLException {
-    throw new GLException("not supported in non AWT enviroment");
-  }
-
   //------------------------------------------------------
   // Gamma-related functionality
   //
diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLGraphicsConfiguration.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLGraphicsConfiguration.java
index fa8e8d468..86e1ef481 100644
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLGraphicsConfiguration.java
+++ b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLGraphicsConfiguration.java
@@ -104,7 +104,8 @@ public class MacOSXCGLGraphicsConfiguration extends MutableGraphicsConfiguration
                 break;
                   
               case CGL.kCGLPFAColorFloat:
-                ivalues.put(idx, ( !caps.isOnscreen() && caps.isPBuffer() && caps.getPbufferFloatingPointBuffers() ) ? 1 : 0);
+                // ivalues.put(idx, ( !caps.isOnscreen() && caps.isPBuffer() && caps.getPbufferFloatingPointBuffers() ) ? 1 : 0);
+                  ivalues.put(idx, 0);
                 break;
 
               case CGL.NSOpenGLPFAPixelBuffer:
@@ -176,12 +177,13 @@ public class MacOSXCGLGraphicsConfiguration extends MutableGraphicsConfiguration
           attrs.put(i++, CGL.kCGLPFAOpenGLProfile); 
           attrs.put(i++, MacOSXCGLContext.GLProfile2CGLOGLProfileValue(ctp, major, minor));
       }
+      /**
       if(!caps.isOnscreen() && caps.isPBuffer()) {
         attrs.put(i++, CGL.kCGLPFAPBuffer);
         if (caps.getPbufferFloatingPointBuffers()) {
           attrs.put(i++, CGL.kCGLPFAColorFloat);
         }
-      }
+      } */
       if (caps.getDoubleBuffered()) {
         attrs.put(i++, CGL.kCGLPFADoubleBuffer);
       }
@@ -284,7 +286,7 @@ public class MacOSXCGLGraphicsConfiguration extends MutableGraphicsConfiguration
                 break;
                 
               case CGL.kCGLPFAColorFloat:
-                caps.setPbufferFloatingPointBuffers(ivalue != 0);
+                // caps.setPbufferFloatingPointBuffers(ivalue != 0);
                 break;
 
               case CGL.NSOpenGLPFAPixelBuffer:
diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOffscreenCGLContext.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOffscreenCGLContext.java
deleted file mode 100644
index f2e636796..000000000
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOffscreenCGLContext.java
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package jogamp.opengl.macosx.cgl;
-
-import javax.media.opengl.*;
-
-public class MacOSXOffscreenCGLContext extends MacOSXPbufferCGLContext
-{
-  public MacOSXOffscreenCGLContext(MacOSXPbufferCGLDrawable drawable,
-                                  GLContext shareWith) {
-    super(drawable, shareWith);
-  }
-
-  @Override
-  public int getDefaultPixelDataType() {
-    final GL gl = getGL();
-    return gl.isGL2GL3()?GL2GL3.GL_UNSIGNED_INT_8_8_8_8_REV:GL.GL_UNSIGNED_SHORT_5_5_5_1;
-  }
-}
diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOffscreenCGLDrawable.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOffscreenCGLDrawable.java
index 4f9005504..446a834b9 100644
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOffscreenCGLDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOffscreenCGLDrawable.java
@@ -53,6 +53,6 @@ public class MacOSXOffscreenCGLDrawable extends MacOSXPbufferCGLDrawable {
 
   @Override
   public GLContext createContext(GLContext shareWith) {
-    return new MacOSXOffscreenCGLContext(this, shareWith);
+    return new MacOSXCGLContext(this, shareWith);
   }
 }
diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOnscreenCGLContext.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOnscreenCGLContext.java
deleted file mode 100644
index 447d18f68..000000000
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOnscreenCGLContext.java
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package jogamp.opengl.macosx.cgl;
-
-import javax.media.nativewindow.NativeSurface;
-import javax.media.nativewindow.ProxySurface;
-import javax.media.opengl.GLContext;
-import javax.media.opengl.GLException;
-
-import jogamp.opengl.GLContextImpl;
-
-public class MacOSXOnscreenCGLContext extends MacOSXCGLContext {
-
-  public MacOSXOnscreenCGLContext(MacOSXOnscreenCGLDrawable drawable,
-                                 GLContext shareWith) {
-    super(drawable, shareWith);
-  }
-
-  @Override
-  protected void makeCurrentImpl() throws GLException {
-      super.makeCurrentImpl();
-      drawableUpdatedNotify();
-  }
-
-  @Override
-  protected void drawableUpdatedNotify() throws GLException {
-    final int w = drawable.getWidth();
-    final int h = drawable.getHeight();    
-    final boolean updateContext = ( 0!=updateHandle && CGL.updateContextNeedsUpdate(updateHandle) ) ||
-                                  w != lastWidth || h != lastHeight;
-    if(updateContext) {
-        lastWidth = w;
-        lastHeight = h;
-        if (contextHandle == 0) {
-          throw new GLException("Context not created");
-        }
-        CGL.updateContext(contextHandle);
-    }
-  }
-
-  @Override
-  protected boolean createImpl(GLContextImpl sharedWith) {
-    boolean res = super.createImpl(sharedWith);
-    lastWidth = -1;
-    lastHeight = -1;
-    if(res && isNSContext()) {
-        if(0 != updateHandle) {
-            throw new InternalError("XXX1");
-        }
-        final boolean incompleteView;
-        final NativeSurface surface = drawable.getNativeSurface();
-        if( surface instanceof ProxySurface ) {
-          incompleteView = ((ProxySurface)surface).containsUpstreamOptionBits( ProxySurface.OPT_UPSTREAM_WINDOW_INVISIBLE );
-        } else {
-          incompleteView = false;
-        }
-        if(!incompleteView) {        
-            updateHandle = CGL.updateContextRegister(contextHandle, drawable.getHandle());
-            if(0 == updateHandle) {
-                throw new InternalError("XXX2");
-            }
-        }
-    }
-    return res;
-  }
-
-  @Override
-  protected void destroyImpl() throws GLException {
-    if ( 0 != updateHandle ) {
-        CGL.updateContextUnregister(updateHandle);
-        updateHandle = 0;
-    }
-    super.destroyImpl();
-  }
-
-  private long updateHandle = 0;
-  private int lastWidth, lastHeight;
-}
diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOnscreenCGLDrawable.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOnscreenCGLDrawable.java
index ec9628004..c6f0c1383 100644
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOnscreenCGLDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXOnscreenCGLDrawable.java
@@ -52,7 +52,7 @@ public class MacOSXOnscreenCGLDrawable extends MacOSXCGLDrawable {
 
   @Override
   public GLContext createContext(GLContext shareWith) {
-    return new MacOSXOnscreenCGLContext(this, shareWith);
+    return new MacOSXCGLContext(this, shareWith);
   }
 
 }
diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXPbufferCGLContext.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXPbufferCGLContext.java
deleted file mode 100644
index 7e2d8cf10..000000000
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXPbufferCGLContext.java
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- * Copyright (c) 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:
- *
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- */
-
-package jogamp.opengl.macosx.cgl;
-
-import javax.media.opengl.GL;
-import javax.media.opengl.GLContext;
-import javax.media.opengl.GLPbuffer;
-
-import jogamp.opengl.GLContextImpl;
-
-@SuppressWarnings("deprecation")
-public class MacOSXPbufferCGLContext extends MacOSXCGLContext {
-
-  // State for render-to-texture and render-to-texture-rectangle support
-  private int texture;       // actual texture object
-
-  public MacOSXPbufferCGLContext(MacOSXPbufferCGLDrawable drawable,
-                                GLContext shareWith) {
-    super(drawable, shareWith);
-  }
-
-  @Override
-  public void bindPbufferToTexture() {
-    GL gl = getGL();
-    gl.glBindTexture(((MacOSXPbufferCGLDrawable)drawable).getTextureTarget(), texture);
-    // FIXME: not clear whether this is really necessary, but since
-    // the API docs seem to imply it is and since it doesn't seem to
-    // impact performance, leaving it in
-    CGL.setContextTextureImageToPBuffer(contextHandle, drawable.getHandle(), GL.GL_FRONT);
-  }
-
-  @Override
-  public void releasePbufferFromTexture() {
-  }
-
-  @Override
-  protected boolean createImpl(GLContextImpl shareWith) {
-    boolean res = super.createImpl(shareWith);
-    if(res) {
-      // Initialize render-to-texture support if requested
-      final GL gl = getGL();
-      final MacOSXPbufferCGLDrawable osxPDrawable = (MacOSXPbufferCGLDrawable)drawable;
-      final int textureTarget = osxPDrawable.getTextureTarget();
-
-      int[] tmp = new int[1];
-      gl.glGenTextures(1, tmp, 0);
-      texture = tmp[0];
-      gl.glBindTexture(textureTarget, texture);
-      gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST);
-      gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST);
-      gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_WRAP_S, GL.GL_CLAMP_TO_EDGE);
-      gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_WRAP_T, GL.GL_CLAMP_TO_EDGE);
-      gl.glTexImage2D(textureTarget, 0, GL.GL_RGB, osxPDrawable.getTextureWidth(), osxPDrawable.getTextureHeight(),
-                      0, GL.GL_RGB, GL.GL_UNSIGNED_BYTE, null);
-      gl.glCopyTexSubImage2D(textureTarget, 0, 0, 0, 0, 0, drawable.getWidth(), drawable.getHeight());
-    }
-    return res;
-  }
-
-  @Override
-  public int getFloatingPointMode() {
-    return GLPbuffer.APPLE_FLOAT;
-  }
-}
diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXPbufferCGLDrawable.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXPbufferCGLDrawable.java
index 1e845d179..982bb57e1 100644
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXPbufferCGLDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXPbufferCGLDrawable.java
@@ -47,7 +47,6 @@ import javax.media.nativewindow.NativeSurface;
 import javax.media.nativewindow.MutableSurface;
 import javax.media.opengl.GL;
 import javax.media.opengl.GL2;
-import javax.media.opengl.GL2GL3;
 import javax.media.opengl.GLCapabilitiesImmutable;
 import javax.media.opengl.GLContext;
 import javax.media.opengl.GLDrawableFactory;
@@ -89,7 +88,7 @@ public class MacOSXPbufferCGLDrawable extends MacOSXCGLDrawable {
 
   @Override
   public GLContext createContext(GLContext shareWith) {
-    return new MacOSXPbufferCGLContext(this, shareWith);
+    return new MacOSXCGLContext(this, shareWith);
   }
   
   protected int getTextureTarget() { return pBufferTexTarget;  }
@@ -134,12 +133,8 @@ public class MacOSXPbufferCGLDrawable extends MacOSXCGLDrawable {
         }
     }
 
-    if ( capabilities.getPbufferRenderToTextureRectangle() && null!=sr && sr.isRECTTextureAvailable() ) {
-      pBufferTexTarget = GL2GL3.GL_TEXTURE_RECTANGLE;
-    } else {
-      pBufferTexTarget = GL.GL_TEXTURE_2D;
-    }
-    if ( GL2GL3.GL_TEXTURE_RECTANGLE == pBufferTexTarget || ( null!=sr && sr.isNPOTTextureAvailable() ) ) {
+    pBufferTexTarget = GL.GL_TEXTURE_2D;
+    if ( null!=sr && sr.isNPOTTextureAvailable() ) {
       pBufferTexWidth = getWidth();
       pBufferTexHeight = getHeight();
     } else {
@@ -147,18 +142,7 @@ public class MacOSXPbufferCGLDrawable extends MacOSXCGLDrawable {
       pBufferTexHeight = GLBuffers.getNextPowerOf2(getHeight());
     }
 
-    int internalFormat = GL.GL_RGBA;
-    if (capabilities.getPbufferFloatingPointBuffers()) {
-      if(!glProfile.isGL2GL3() || null==sr || sr.isAppleFloatPixelsAvailable()) {
-          throw new GLException("Floating-point support (GL_APPLE_float_pixels) not available");
-      }
-      switch (capabilities.getRedBits()) {
-        case 16: internalFormat = GL2.GL_RGBA_FLOAT16_APPLE; break;
-        case 32: internalFormat = GL2.GL_RGBA_FLOAT32_APPLE; break;
-        default: throw new GLException("Invalid floating-point bit depth (only 16 and 32 supported)");
-      }
-    }
-
+    final int internalFormat = GL.GL_RGBA;
     final long pBuffer = impl.create(pBufferTexTarget, internalFormat, getWidth(), getHeight());
     if(DEBUG) {
         System.err.println("MacOSXPbufferCGLDrawable tex: target "+toHexString(pBufferTexTarget)+
diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/awt/MacOSXAWTCGLDrawableFactory.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/awt/MacOSXAWTCGLDrawableFactory.java
deleted file mode 100644
index fe60710f0..000000000
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/awt/MacOSXAWTCGLDrawableFactory.java
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- * 
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- * 
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- * 
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- * 
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- * 
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- * 
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package jogamp.opengl.macosx.cgl.awt;
-
-import javax.media.nativewindow.*;
-import javax.media.opengl.*;
-import jogamp.opengl.macosx.cgl.*;
-
-public class MacOSXAWTCGLDrawableFactory extends MacOSXCGLDrawableFactory {
-
-  public MacOSXAWTCGLDrawableFactory() {
-    super();
-  }
-
-  public boolean canCreateContextOnJava2DSurface(AbstractGraphicsDevice device) {
-    return true;
-  }
-
-  public GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
-    throws GLException {
-    return new MacOSXJava2DCGLContext(shareWith);
-  }
-}
diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/awt/MacOSXJava2DCGLContext.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/awt/MacOSXJava2DCGLContext.java
deleted file mode 100644
index bd183b900..000000000
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/awt/MacOSXJava2DCGLContext.java
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- * 
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- * 
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- * 
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- * 
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- * 
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- * 
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package jogamp.opengl.macosx.cgl.awt;
-
-import java.awt.Graphics;
-
-import javax.media.opengl.GLContext;
-import javax.media.opengl.GLException;
-
-import jogamp.opengl.GLContextImpl;
-import jogamp.opengl.awt.Java2D;
-import jogamp.opengl.awt.Java2DGLContext;
-import jogamp.opengl.macosx.cgl.MacOSXCGLContext;
-import jogamp.opengl.macosx.cgl.MacOSXCGLDrawable.GLBackendType;
-
-
-/** MacOSXCGLContext implementation supporting the Java2D/JOGL bridge
- * on Mac OS X. The external GLDrawable mechanism does not work on Mac
- * OS X due to how drawables and contexts are operated upon on this
- * platform, so it is necessary to supply an alternative means to
- * create, make current, and destroy contexts on the Java2D "drawable"
- * on the Mac platform.
- */
-
-public class MacOSXJava2DCGLContext extends MacOSXCGLContext implements Java2DGLContext {
-  private Graphics graphics;
-
-  // FIXME: ignoring context sharing for the time being; will need to
-  // rethink this in particular if using FBOs to implement the
-  // Java2D/OpenGL pipeline on Mac OS X
-
-  MacOSXJava2DCGLContext(GLContext shareWith) {
-    super(null, shareWith);
-  }
-
-  public void setGraphics(Graphics g) {
-    this.graphics = g;
-  }
-
-  protected void makeCurrentImpl() throws GLException {
-    if (!Java2D.makeOGLContextCurrentOnSurface(graphics, contextHandle)) {
-      throw new GLException("Error making context current");
-    }            
-  }
-
-  protected boolean createImpl(GLContextImpl shareWith) {
-    long share = createImplPreset(shareWith);
-    
-    long ctx = Java2D.createOGLContextOnSurface(graphics, share);
-    if (ctx == 0) {
-      if(DEBUG) { 
-          System.err.println("Error creating current: "+this);
-      }
-      return false;
-    }
-    if (!Java2D.makeOGLContextCurrentOnSurface(graphics, contextHandle)) {
-      Java2D.destroyOGLContext(ctx);
-      if(DEBUG) { 
-          System.err.println("Error making created context current: "+this);
-      }
-      return false;
-    }
-    setGLFunctionAvailability(true, 0, 0, CTX_PROFILE_COMPAT, false); // use GL_VERSION
-    contextHandle = ctx;
-    return true;
-  }
-
-  protected void releaseImpl() throws GLException {
-    // FIXME: would need another primitive in the Java2D class in
-    // order to implement this; hopefully should not matter for
-    // correctness
-  }
-
-  protected void destroyImpl() throws GLException {
-      Java2D.destroyOGLContext(contextHandle);
-  }
-
-  public void setOpenGLMode(GLBackendType mode) {
-    if (mode != GLBackendType.CGL) {
-      throw new GLException("OpenGL mode switching not supported for Java2D GLContexts");
-    }
-    super.setOpenGLMode(mode);
-  }
-}
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WGLGLCapabilities.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WGLGLCapabilities.java
index 10a4b56d5..4444e9d63 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WGLGLCapabilities.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WGLGLCapabilities.java
@@ -32,9 +32,7 @@ import java.nio.IntBuffer;
 
 import jogamp.nativewindow.windows.GDI;
 import jogamp.nativewindow.windows.PIXELFORMATDESCRIPTOR;
-import jogamp.opengl.GLGraphicsConfigurationUtil;
 
-import javax.media.nativewindow.AbstractGraphicsDevice;
 import javax.media.nativewindow.NativeWindowException;
 import javax.media.opengl.GL;
 import javax.media.opengl.GLCapabilities;
@@ -161,19 +159,13 @@ public class WGLGLCapabilities extends GLCapabilities {
                   }
 
                   if (res == WGLExt.WGL_TYPE_RGBA_FLOAT_ARB) {
-                      setPbufferFloatingPointBuffers(true);
+                      return false; // not supported
                   }
 
                   // normal RGBA FB: WGLExt.WGL_TYPE_RGBA_ARB
                   // ignore unknown results here
                   break;
 
-              case WGLExt.WGL_FLOAT_COMPONENTS_NV:
-                  if (res != 0) {
-                      setPbufferFloatingPointBuffers(true);
-                  }
-                  break;
-
               case WGLExt.WGL_RED_BITS_ARB:
                   setRedBits(res);
                   break;
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsBitmapWGLContext.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsBitmapWGLContext.java
deleted file mode 100644
index c8aac7f7b..000000000
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsBitmapWGLContext.java
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- * Copyright (c) 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:
- *
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package jogamp.opengl.windows.wgl;
-
-import javax.media.opengl.*;
-
-public class WindowsBitmapWGLContext extends WindowsWGLContext {
-  public WindowsBitmapWGLContext(WindowsBitmapWGLDrawable drawable,
-                                   GLContext shareWith) {
-    super(drawable, shareWith);
-  }
-
-  @Override
-  public int getDefaultPixelDataType() {
-      return GL.GL_UNSIGNED_BYTE;
-  }
-
-  @Override
-  public boolean isGLOrientationFlippedVertical() {
-    // We can take care of this in the DIB creation (see below)
-    return false;
-  }
-}
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsBitmapWGLDrawable.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsBitmapWGLDrawable.java
index bd018105a..a7f62fccf 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsBitmapWGLDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsBitmapWGLDrawable.java
@@ -73,9 +73,14 @@ public class WindowsBitmapWGLDrawable extends WindowsWGLDrawable {
 
   @Override
   public GLContext createContext(GLContext shareWith) {
-    return new WindowsBitmapWGLContext(this, shareWith);
+    return new WindowsWGLContext(this, shareWith);
   }
 
+  @Override
+  public boolean isGLOriented() {
+      return false;
+  }
+  
   private void createBitmap() {
     int werr;
     final NativeSurface ns = getNativeSurface();
@@ -111,9 +116,9 @@ public class WindowsBitmapWGLDrawable extends WindowsWGLDrawable {
     bitsPerPixel = 24; // RGB888 only!
     header.setBiSize(BITMAPINFOHEADER.size());
     header.setBiWidth(width);
-    // NOTE: negating the height causes the DIB to be in top-down row
-    // order rather than bottom-up; ends up being correct during pixel
-    // readback
+    // NOTE: Positive height causes the DIB's origin at bottom-left (OpenGL),
+    // a negative height causes the DIB's origin at top-left (Java AWT, Windows, ..).
+    // We use !OpenGL origin to remove the need for vertical flip, see 'isGLOriented()' above.
     header.setBiHeight(-1 * height);
     header.setBiPlanes((short) 1);
     header.setBiBitCount((short) bitsPerPixel);
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsOnscreenWGLContext.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsOnscreenWGLContext.java
deleted file mode 100644
index aef55efc6..000000000
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsOnscreenWGLContext.java
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package jogamp.opengl.windows.wgl;
-
-import javax.media.opengl.*;
-
-public class WindowsOnscreenWGLContext extends WindowsWGLContext {
-  public WindowsOnscreenWGLContext(WindowsOnscreenWGLDrawable drawable,
-                                  GLContext shareWith) {
-    super(drawable, shareWith);
-  }
-}
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsOnscreenWGLDrawable.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsOnscreenWGLDrawable.java
index ddbb29d51..61fb787c6 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsOnscreenWGLDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsOnscreenWGLDrawable.java
@@ -51,7 +51,7 @@ public class WindowsOnscreenWGLDrawable extends WindowsWGLDrawable {
 
   @Override
   public GLContext createContext(GLContext shareWith) {
-    return new WindowsOnscreenWGLContext(this, shareWith);
+    return new WindowsWGLContext(this, shareWith);
   }
 
 }
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsPbufferWGLContext.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsPbufferWGLContext.java
deleted file mode 100644
index 7dda6a1f1..000000000
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsPbufferWGLContext.java
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- * Copyright (c) 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:
- *
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package jogamp.opengl.windows.wgl;
-
-import javax.media.opengl.*;
-
-import com.jogamp.opengl.GLExtensions;
-
-import jogamp.opengl.GLContextImpl;
-
-public class WindowsPbufferWGLContext extends WindowsWGLContext {
-  // State for render-to-texture and render-to-texture-rectangle support
-  private boolean rtt;       // render-to-texture?
-  private boolean hasRTT;    // render-to-texture extension available?
-  private boolean rect;      // render-to-texture-rectangle?
-  private int textureTarget; // e.g. GL_TEXTURE_2D, GL_TEXTURE_RECTANGLE_NV
-  private int texture;       // actual texture object
-
-  protected WindowsPbufferWGLContext(WindowsPbufferWGLDrawable drawable,
-                                 GLContext shareWith) {
-    super(drawable, shareWith);
-  }
-
-  @Override
-  public void bindPbufferToTexture() {
-    if (!rtt) {
-      throw new GLException("Shouldn't try to bind a pbuffer to a texture if render-to-texture hasn't been " +
-                            "specified in its GLCapabilities");
-    }
-    GL gl = getGL();
-    WGLExt wglExt = getWGLExt();
-    gl.glBindTexture(textureTarget, texture);
-    if (rtt && hasRTT) {
-      if (!wglExt.wglBindTexImageARB(((WindowsPbufferWGLDrawable)drawable).getPbufferHandle(), WGLExt.WGL_FRONT_LEFT_ARB)) {
-        throw new GLException("Binding of pbuffer to texture failed: " + wglGetLastError());
-      }
-    }
-    // FIXME: comment is wrong now
-    // Note that if the render-to-texture extension is not supported,
-    // we perform a glCopyTexImage2D in swapBuffers().
-  }
-
-  @Override
-  public void releasePbufferFromTexture() {
-    if (!rtt) {
-      throw new GLException("Shouldn't try to bind a pbuffer to a texture if render-to-texture hasn't been " +
-                            "specified in its GLCapabilities");
-    }
-    if (rtt && hasRTT) {
-      WGLExt wglExt = getWGLExt();
-      if (!wglExt.wglReleaseTexImageARB(((WindowsPbufferWGLDrawable)drawable).getPbufferHandle(), WGLExt.WGL_FRONT_LEFT_ARB)) {
-        throw new GLException("Releasing of pbuffer from texture failed: " + wglGetLastError());
-      }
-    }
-  }
-
-  @Override
-  protected boolean createImpl(GLContextImpl shareWith) {
-    boolean res = super.createImpl(shareWith);
-    if(res) {
-      GLCapabilitiesImmutable capabilities = drawable.getChosenGLCapabilities();
-
-      // Initialize render-to-texture support if requested
-      GL gl = getGL();
-      rtt  = capabilities.getPbufferRenderToTexture();
-      rect = gl.isGL2GL3() && capabilities.getPbufferRenderToTextureRectangle();
-
-      if (rtt) {
-        if (DEBUG) {
-          System.err.println("Initializing render-to-texture support");
-        }
-
-        if (!gl.isExtensionAvailable("WGL_ARB_render_texture")) {
-          System.err.println("WindowsPbufferWGLContext: WARNING: WGL_ARB_render_texture extension not " +
-                             "supported; implementing render_to_texture support using slow texture readback");
-        } else {
-          hasRTT = true;
-
-          if (rect && !gl.isExtensionAvailable(GLExtensions.NV_texture_rectangle)) {
-            System.err.println("WindowsPbufferWGLContext: WARNING: GL_NV_texture_rectangle extension not " +
-                               "supported; skipping requested render_to_texture_rectangle support for pbuffer");
-            rect = false;
-          }
-          if (rect) {
-            if (DEBUG) {
-              System.err.println("  Using render-to-texture-rectangle");
-            }
-            textureTarget = GL2GL3.GL_TEXTURE_RECTANGLE_ARB;
-          } else {
-            if (DEBUG) {
-              System.err.println("  Using vanilla render-to-texture");
-            }
-            textureTarget = GL.GL_TEXTURE_2D;
-          }
-          int[] tmp = new int[1];
-          gl.glGenTextures(1, tmp, 0);
-          texture = tmp[0];
-          gl.glBindTexture(textureTarget, texture);
-          gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST);
-          gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST);
-          gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_WRAP_S, GL.GL_CLAMP_TO_EDGE);
-          gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_WRAP_T, GL.GL_CLAMP_TO_EDGE);
-          gl.glCopyTexImage2D(textureTarget, 0, GL.GL_RGB, 0, 0, drawable.getWidth(), drawable.getHeight(), 0);
-        }
-      }
-    }
-    return res;
-  }
-
-  @Override
-  public int getFloatingPointMode() {
-    return ((WindowsPbufferWGLDrawable)drawable).getFloatingPointMode();
-  }
-
-  private static String wglGetLastError() {
-    return WindowsWGLDrawableFactory.wglGetLastError();
-  }
-}
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsPbufferWGLDrawable.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsPbufferWGLDrawable.java
index b65f5dd2f..2a0f2596e 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsPbufferWGLDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsPbufferWGLDrawable.java
@@ -47,7 +47,6 @@ import javax.media.nativewindow.AbstractGraphicsDevice;
 import javax.media.nativewindow.NativeSurface;
 import javax.media.nativewindow.NativeWindowException;
 import javax.media.nativewindow.MutableSurface;
-import javax.media.opengl.GL;
 import javax.media.opengl.GLCapabilitiesImmutable;
 import javax.media.opengl.GLContext;
 import javax.media.opengl.GLDrawableFactory;
@@ -60,15 +59,12 @@ import jogamp.nativewindow.windows.GDI;
 import jogamp.opengl.GLDrawableImpl;
 import jogamp.opengl.GLGraphicsConfigurationUtil;
 import jogamp.opengl.windows.wgl.WindowsWGLDrawableFactory.SharedResource;
-// import javax.media.opengl.GLPbuffer;
 
 public class WindowsPbufferWGLDrawable extends WindowsWGLDrawable {
   private WGLExt cachedWGLExt; // cached WGLExt instance from parent GLCanvas,
                                // needed to destroy pbuffer
   private long buffer; // pbuffer handle
 
-  private int floatMode;
-
   protected WindowsPbufferWGLDrawable(GLDrawableFactory factory, NativeSurface target) {
     super(factory, target, false);
   }
@@ -84,7 +80,7 @@ public class WindowsPbufferWGLDrawable extends WindowsWGLDrawable {
 
   @Override
   public GLContext createContext(GLContext shareWith) {
-    return new WindowsPbufferWGLContext(this, shareWith);
+    return new WindowsWGLContext(this, shareWith);
   }
 
   protected void destroyPbuffer() {
@@ -115,10 +111,6 @@ public class WindowsPbufferWGLDrawable extends WindowsWGLDrawable {
     return buffer;
   }
 
-  public int getFloatingPointMode() {
-    return floatMode;
-  }
-
   private void createPbuffer() {
     WindowsWGLGraphicsConfiguration config = (WindowsWGLGraphicsConfiguration) getNativeSurface().getGraphicsConfiguration();
     SharedResource sharedResource = ((WindowsWGLDrawableFactory)factory).getOrCreateSharedResource(config.getScreen().getDevice());
@@ -155,17 +147,6 @@ public class WindowsPbufferWGLDrawable extends WindowsWGLDrawable {
           throw new GLException("Pbuffer-related extensions not supported");
         }
 
-        floatMode = floatModeTmp[0];
-        boolean rtt      = chosenCaps.getPbufferRenderToTexture();
-        boolean rect     = chosenCaps.getPbufferRenderToTextureRectangle();
-        boolean useFloat = chosenCaps.getPbufferFloatingPointBuffers();
-        // boolean ati      = false;
-
-        /**
-        if (useFloat) {
-          ati = (floatMode == GLPbuffer.ATI_FLOAT);
-        } */
-
         final IntBuffer pformats = Buffers.newDirectIntBuffer(WindowsWGLGraphicsConfiguration.MAX_PFORMATS);
         final IntBuffer nformatsTmp = Buffers.newDirectIntBuffer(1);
         if (!wglExt.wglChoosePixelFormatARB(sharedHdc,
@@ -198,24 +179,6 @@ public class WindowsPbufferWGLDrawable extends WindowsWGLDrawable {
               // Create the p-buffer.
               niattribs = 0;
 
-              if (rtt) {
-                iattributes.put(niattribs++, WGLExt.WGL_TEXTURE_FORMAT_ARB);
-                if (useFloat) {
-                  iattributes.put(niattribs++, WGLExt.WGL_TEXTURE_FLOAT_RGB_NV);
-                } else {
-                  iattributes.put(niattribs++, WGLExt.WGL_TEXTURE_RGBA_ARB);
-                }
-
-                iattributes.put(niattribs++, WGLExt.WGL_TEXTURE_TARGET_ARB);
-                iattributes.put(niattribs++, rect ? WGLExt.WGL_TEXTURE_RECTANGLE_NV : WGLExt.WGL_TEXTURE_2D_ARB);
-
-                iattributes.put(niattribs++, WGLExt.WGL_MIPMAP_TEXTURE_ARB);
-                iattributes.put(niattribs++, GL.GL_FALSE);
-
-                iattributes.put(niattribs++, WGLExt.WGL_PBUFFER_LARGEST_ARB); // exact
-                iattributes.put(niattribs++, GL.GL_FALSE);
-              }
-
               iattributes.put(niattribs++, 0);
 
               tmpBuffer = wglExt.wglCreatePbufferARB(sharedHdc, format, getWidth(), getHeight(), iattributes);
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLContext.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLContext.java
index 9f034adb1..1f41563ba 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLContext.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLContext.java
@@ -540,15 +540,4 @@ public class WindowsWGLContext extends GLContextImpl {
   public ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3) {
     return getWGLExt().wglAllocateMemoryNV(arg0, arg1, arg2, arg3);
   }
-
-  @Override
-  public void bindPbufferToTexture() {
-    throw new GLException("Should not call this");
-  }
-
-  @Override
-  public void releasePbufferFromTexture() {
-    throw new GLException("Should not call this");
-  }
-
 }
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawableFactory.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawableFactory.java
index d7d6ceab4..26d73638f 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawableFactory.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLDrawableFactory.java
@@ -617,17 +617,6 @@ public class WindowsWGLDrawableFactory extends GLDrawableFactoryImpl {
     return detail;
   }
 
-  @Override
-  public final boolean canCreateContextOnJava2DSurface(AbstractGraphicsDevice device) {
-    return false;
-  }
-
-  @Override
-  public final GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
-    throws GLException {
-    throw new GLException("Unimplemented on this platform");
-  }
-
   //------------------------------------------------------
   // Gamma-related functionality
   //
diff --git a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfiguration.java b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfiguration.java
index fdff20daa..3b71c4462 100644
--- a/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfiguration.java
+++ b/src/jogl/classes/jogamp/opengl/windows/wgl/WindowsWGLGraphicsConfiguration.java
@@ -46,12 +46,10 @@ import javax.media.opengl.GLCapabilitiesImmutable;
 import javax.media.opengl.GLCapabilitiesChooser;
 import javax.media.opengl.GLDrawableFactory;
 import javax.media.opengl.GLException;
-import javax.media.opengl.GLPbuffer;
 import javax.media.opengl.GLProfile;
 
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.nativewindow.MutableGraphicsConfiguration;
-import com.jogamp.opengl.GLExtensions;
 
 import jogamp.nativewindow.windows.DWM_BLURBEHIND;
 import jogamp.nativewindow.windows.GDI;
@@ -61,7 +59,6 @@ import jogamp.nativewindow.windows.PIXELFORMATDESCRIPTOR;
 import jogamp.opengl.GLContextImpl;
 import jogamp.opengl.GLGraphicsConfigurationUtil;
 
-@SuppressWarnings("deprecation")
 public class WindowsWGLGraphicsConfiguration extends MutableGraphicsConfiguration implements Cloneable {    
     protected static final int MAX_PFORMATS = 256;
     protected static final int MAX_ATTRIBS  = 256;
@@ -257,15 +254,6 @@ public class WindowsWGLGraphicsConfiguration extends MutableGraphicsConfiguratio
             iattributes.put(niattribs++, WGLExt.WGL_SAMPLE_BUFFERS_ARB);
             iattributes.put(niattribs++, WGLExt.WGL_SAMPLES_ARB);
         }
-            
-        if(sharedResource.hasARBPBuffer()) {
-            GLContextImpl sharedCtx = sharedResource.getContext();
-            if(null != sharedCtx && sharedCtx.isExtensionAvailable(WindowsWGLDrawableFactory.WGL_NV_float_buffer)) {
-                // pbo float buffer
-                iattributes.put(niattribs++, WGLExt.WGL_FLOAT_COMPONENTS_NV); // nvidia
-            }
-        }
-
         return niattribs;
     }
     
@@ -511,85 +499,8 @@ public class WindowsWGLGraphicsConfiguration extends MutableGraphicsConfiguratio
             iattributes.put(niattribs++, caps.getNumSamples());
         }
 
-        boolean rtt      = caps.getPbufferRenderToTexture();
-        boolean rect     = caps.getPbufferRenderToTextureRectangle();
-        boolean useFloat = caps.getPbufferFloatingPointBuffers();
-        boolean ati      = false;
-        boolean nvidia   = false;
-        if ( usePBuffer ) {
-          // Check some invariants and set up some state
-          if (rect && !rtt) {
-            throw new GLException("Render-to-texture-rectangle requires render-to-texture to be specified");
-          }
-
-          GLContextImpl sharedCtx = sharedResource.getContext();
-          if (rect) {
-            if (!sharedCtx.isExtensionAvailable(GLExtensions.NV_texture_rectangle)) {
-              throw new GLException("Render-to-texture-rectangle requires GL_NV_texture_rectangle extension");
-            }
-          }
-
-          if (useFloat) {
-            // Prefer NVidia extension over ATI
-            nvidia = sharedCtx.isExtensionAvailable(WindowsWGLDrawableFactory.WGL_NV_float_buffer);
-            if(nvidia) {
-              floatMode[0] = GLPbuffer.NV_FLOAT;
-            } else {
-                ati = sharedCtx.isExtensionAvailable("WGL_ATI_pixel_format_float");
-                if(ati) {
-                    floatMode[0] = GLPbuffer.ATI_FLOAT;
-                } else {
-                    throw new GLException("Floating-point pbuffers not supported by this hardware");                    
-                }
-            }
-            
-            if (DEBUG) {
-              System.err.println("Using " + (ati ? "ATI" : ( nvidia ? "NVidia" : "NONE" ) ) + " floating-point extension");
-            }
-          }
-
-          // See whether we need to change the pixel type to support ATI's
-          // floating-point pbuffers
-          if (useFloat && ati) {
-            if (rtt) {
-              throw new GLException("Render-to-floating-point-texture not supported on ATI hardware");
-            } else {
-              iattributes.put(niattribs++, WGLExt.WGL_PIXEL_TYPE_ARB);
-              iattributes.put(niattribs++, WGLExt.WGL_TYPE_RGBA_FLOAT_ARB);
-            }
-          } else {
-            if (!rtt) {
-              // Currently we don't support non-truecolor visuals in the
-              // GLCapabilities, so we don't offer the option of making
-              // color-index pbuffers.
-              iattributes.put(niattribs++, WGLExt.WGL_PIXEL_TYPE_ARB);
-              iattributes.put(niattribs++, WGLExt.WGL_TYPE_RGBA_ARB);
-            }
-          }
-
-          if (useFloat && nvidia) {
-            iattributes.put(niattribs++, WGLExt.WGL_FLOAT_COMPONENTS_NV);
-            iattributes.put(niattribs++, GL.GL_TRUE);
-          }
-
-          if (rtt) {
-            if (useFloat) {
-              assert(!ati);
-              assert(nvidia);
-              if (!rect) {
-                throw new GLException("Render-to-floating-point-texture only supported on NVidia hardware with render-to-texture-rectangle");
-              }
-              iattributes.put(niattribs++, WGLExt.WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGB_NV);
-              iattributes.put(niattribs++, GL.GL_TRUE);
-            } else {
-              iattributes.put(niattribs++, rect ? WGLExt.WGL_BIND_TO_TEXTURE_RECTANGLE_RGB_NV : WGLExt.WGL_BIND_TO_TEXTURE_RGB_ARB);
-              iattributes.put(niattribs++, GL.GL_TRUE);
-            }
-          }
-        } else {
-          iattributes.put(niattribs++, WGLExt.WGL_PIXEL_TYPE_ARB);
-          iattributes.put(niattribs++, WGLExt.WGL_TYPE_RGBA_ARB);
-        }
+        iattributes.put(niattribs++, WGLExt.WGL_PIXEL_TYPE_ARB);
+        iattributes.put(niattribs++, WGLExt.WGL_TYPE_RGBA_ARB);
         iattributes.put(niattribs++, 0);
 
         return true;
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java
index 575ff51b8..c60619452 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java
@@ -65,7 +65,7 @@ import com.jogamp.gluegen.runtime.opengl.GLProcAddressResolver;
 import com.jogamp.nativewindow.x11.X11GraphicsDevice;
 import com.jogamp.opengl.GLExtensions;
 
-public abstract class X11GLXContext extends GLContextImpl {
+public class X11GLXContext extends GLContextImpl {
   private static final Map<String, String> functionNameMap;
   private static final Map<String, String> extensionNameMap;
   private GLXExt _glXExt;
@@ -624,16 +624,6 @@ public abstract class X11GLXContext extends GLContextImpl {
   }
 
   @Override
-  public void bindPbufferToTexture() {
-    throw new GLException("Should not call this");
-  }
-
-  @Override
-  public void releasePbufferFromTexture() {
-    throw new GLException("Should not call this");
-  }
-
-  @Override
   public String toString() {
     StringBuilder sb = new StringBuilder();
     sb.append(getClass().getSimpleName());
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java
index 9486b5875..19005e48c 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java
@@ -571,17 +571,6 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl {
     return X11ExternalGLXDrawable.create(this, null);
   }
 
-  @Override
-  public final boolean canCreateContextOnJava2DSurface(AbstractGraphicsDevice device) {
-    return false;
-  }
-
-  @Override
-  public final GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
-    throws GLException {
-    throw new GLException("Unimplemented on this platform");
-  }
-
   //----------------------------------------------------------------------
   // Gamma-related functionality
   //
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java
index 12ce22392..523364389 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java
@@ -225,17 +225,6 @@ public class X11GLXGraphicsConfiguration extends X11GraphicsConfiguration implem
           res.put(idx++, GLX.GLX_SAMPLES);
           res.put(idx++, caps.getNumSamples());
         }
-        if (caps.isPBuffer()) {
-          if (caps.getPbufferFloatingPointBuffers()) {
-            String glXExtensions = GLX.glXQueryExtensionsString(display, screen);
-            if (glXExtensions == null ||
-                glXExtensions.indexOf("GLX_NV_float_buffer") < 0) {
-              throw new GLException("Floating-point pbuffers on X11 currently require NVidia hardware: "+glXExtensions);
-            }
-            res.put(idx++, GLXExt.GLX_FLOAT_COMPONENTS_NV);
-            res.put(idx++, GL.GL_TRUE);
-          }
-        }
         res.put(idx++, 0);
         return res;
   }
@@ -341,10 +330,6 @@ public class X11GLXGraphicsConfiguration extends X11GraphicsConfiguration implem
     res.setDepthBits     (glXGetFBConfig(display, fbcfg, GLX.GLX_DEPTH_SIZE,       tmp));
     res.setStencilBits   (glXGetFBConfig(display, fbcfg, GLX.GLX_STENCIL_SIZE,     tmp));
     
-    try { 
-        res.setPbufferFloatingPointBuffers(glXGetFBConfig(display, fbcfg, GLXExt.GLX_FLOAT_COMPONENTS_NV, tmp) != GL.GL_FALSE);
-    } catch (Exception e) {}
-
     return (X11GLCapabilities) GLGraphicsConfigurationUtil.fixWinAttribBitsAndHwAccel(device, drawableTypeBits, res); 
   }
 
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXContext.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXContext.java
deleted file mode 100644
index 460dc10ca..000000000
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXContext.java
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-package jogamp.opengl.x11.glx;
-
-import javax.media.opengl.*;
-
-public class X11OnscreenGLXContext extends X11GLXContext {
-
-    public X11OnscreenGLXContext(X11OnscreenGLXDrawable drawable, GLContext shareWith) {
-        super(drawable, shareWith);
-    }
-}
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXDrawable.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXDrawable.java
index 6b239a43d..9da189290 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXDrawable.java
@@ -104,6 +104,6 @@ public class X11OnscreenGLXDrawable extends X11GLXDrawable {
 
   @Override
   public GLContext createContext(GLContext shareWith) {
-    return new X11OnscreenGLXContext(this, shareWith);
+    return new X11GLXContext(this, shareWith);
   }
 }
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11PbufferGLXContext.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11PbufferGLXContext.java
deleted file mode 100644
index a34e050cd..000000000
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11PbufferGLXContext.java
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package jogamp.opengl.x11.glx;
-
-import javax.media.opengl.*;
-
-public class X11PbufferGLXContext extends X11GLXContext {
-
-  public X11PbufferGLXContext(X11PbufferGLXDrawable drawable, GLContext shareWith) {
-    super(drawable, shareWith);
-  }
-
-  @Override
-  public void bindPbufferToTexture() {
-    // FIXME: figure out how to implement this
-    throw new GLException("Not yet implemented");
-  }
-
-  @Override
-  public void releasePbufferFromTexture() {
-    // FIXME: figure out how to implement this
-    throw new GLException("Not yet implemented");
-  }
-
-
-  @Override
-  public int getFloatingPointMode() {
-    return ((X11PbufferGLXDrawable)drawable).getFloatingPointMode();
-  }
-}
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11PbufferGLXDrawable.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11PbufferGLXDrawable.java
index d2d0c6789..0e771fd0f 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11PbufferGLXDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11PbufferGLXDrawable.java
@@ -46,15 +46,12 @@ import javax.media.nativewindow.AbstractGraphicsDevice;
 import javax.media.nativewindow.AbstractGraphicsScreen;
 import javax.media.nativewindow.NativeSurface;
 import javax.media.nativewindow.MutableSurface;
-import javax.media.opengl.GLCapabilitiesImmutable;
 import javax.media.opengl.GLContext;
 import javax.media.opengl.GLDrawableFactory;
 import javax.media.opengl.GLException;
-import javax.media.opengl.GLPbuffer;
 
 import com.jogamp.common.nio.Buffers;
 
-@SuppressWarnings("deprecation")
 public class X11PbufferGLXDrawable extends X11GLXDrawable {
   protected X11PbufferGLXDrawable(GLDrawableFactory factory, NativeSurface target) {
                                   /* GLCapabilities caps,
@@ -74,7 +71,7 @@ public class X11PbufferGLXDrawable extends X11GLXDrawable {
 
   @Override
   public GLContext createContext(GLContext shareWith) {
-    return new X11PbufferGLXContext(this, shareWith);
+    return new X11GLXContext(this, shareWith);
   }
 
   protected void destroyPbuffer() {
@@ -103,16 +100,6 @@ public class X11PbufferGLXDrawable extends X11GLXDrawable {
         throw new GLException("Null display");
       }
 
-      GLCapabilitiesImmutable chosenCaps = (GLCapabilitiesImmutable)config.getChosenCapabilities();
-
-      if (chosenCaps.getPbufferRenderToTexture()) {
-        throw new GLException("Render-to-texture pbuffers not supported yet on X11");
-      }
-
-      if (chosenCaps.getPbufferRenderToTextureRectangle()) {
-        throw new GLException("Render-to-texture-rectangle pbuffers not supported yet on X11");
-      }
-
       // Create the p-buffer.
       int niattribs = 0;
       IntBuffer iattributes = Buffers.newDirectIntBuffer(7);
@@ -138,9 +125,4 @@ public class X11PbufferGLXDrawable extends X11GLXDrawable {
         System.err.println(getThreadName()+": Created pbuffer " + this);
       }
   }
-
-  public int getFloatingPointMode() {
-    // Floating-point pbuffers currently require NVidia hardware on X11
-    return GLPbuffer.NV_FLOAT;
-  }
 }
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11PixmapGLXContext.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11PixmapGLXContext.java
deleted file mode 100644
index 1cfb7e427..000000000
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11PixmapGLXContext.java
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- * Copyright (c) 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:
- *
- * - Redistribution of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package jogamp.opengl.x11.glx;
-
-import javax.media.opengl.*;
-
-public class X11PixmapGLXContext extends X11GLXContext {
-
-  public X11PixmapGLXContext(X11PixmapGLXDrawable drawable,
-                               GLContext shareWith) {
-    super(drawable, shareWith);
-  }
-
-  @Override
-  public int getDefaultPixelDataType() {
-    GL gl = getGL();
-    return gl.isGL2GL3()?GL2GL3.GL_UNSIGNED_INT_8_8_8_8_REV:GL.GL_UNSIGNED_SHORT_5_5_5_1;
-  }
-
-}
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11PixmapGLXDrawable.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11PixmapGLXDrawable.java
index ab25e4ef4..c1388db8a 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11PixmapGLXDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11PixmapGLXDrawable.java
@@ -69,7 +69,7 @@ public class X11PixmapGLXDrawable extends X11GLXDrawable {
 
   @Override
   public GLContext createContext(GLContext shareWith) {
-    return new X11PixmapGLXContext(this, shareWith);
+    return new X11GLXContext(this, shareWith);
   }
 
   private void createPixmap() {