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.

55 files changed, 272 insertions, 1570 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/swt/GLCanvas.java b/src/jogl/classes/com/jogamp/opengl/swt/GLCanvas.java
index 169266152..ff764d849 100644
--- a/src/jogl/classes/com/jogamp/opengl/swt/GLCanvas.java
+++ b/src/jogl/classes/com/jogamp/opengl/swt/GLCanvas.java
@@ -589,6 +589,12 @@ public class GLCanvas extends Canvas implements GLAutoDrawable {
    }
 
    @Override
+   public boolean isGLOriented() {
+      final GLDrawable _drawable = drawable;
+      return null != _drawable ? _drawable.isGLOriented() : true;
+   }
+    
+   @Override
    public void addGLEventListener(final GLEventListener listener) {
       helper.addGLEventListener(listener);
    }
diff --git a/src/jogl/classes/com/jogamp/opengl/util/GLReadBufferUtil.java b/src/jogl/classes/com/jogamp/opengl/util/GLReadBufferUtil.java
index b8709f31c..1345d29bd 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/GLReadBufferUtil.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/GLReadBufferUtil.java
@@ -111,11 +111,15 @@ public class GLReadBufferUtil {
      * 
      * @param gl the current GL context object. It's read drawable is being used as the pixel source.
      * @param drawable the drawable to read from
-     * @param flip weather to flip the data vertically or not
+     * @param mustFlipVertically indicates weather to flip the data vertically or not.
+     *                           The context's drawable {@link GLDrawable#isGLOriented()} state
+     *                           is taken into account.
+     *                           Vertical flipping is propagated to TextureData
+     *                           and handled in a efficient manner there (TextureCoordinates and TextureIO writer).
      * 
      * @see #GLReadBufferUtil(boolean, boolean)
      */
-    public boolean readPixels(GL gl, boolean flip) {
+    public boolean readPixels(GL gl, boolean mustFlipVertically) {
         final int glerr0 = gl.glGetError();
         if(GL.GL_NO_ERROR != glerr0) {
             System.err.println("Info: GLReadBufferUtil.readPixels: pre-exisiting GL error 0x"+Integer.toHexString(glerr0));
@@ -124,6 +128,13 @@ public class GLReadBufferUtil {
         final int textureInternalFormat, textureDataFormat, textureDataType;
         final int[] glImplColorReadVals = new int[] { 0, 0 };
         
+        final boolean flipVertically;
+        if( drawable.isGLOriented() ) {
+            flipVertically = mustFlipVertically;
+        } else {
+            flipVertically = !mustFlipVertically;
+        }
+        
         if(gl.isGL2GL3() && 3 == components) {
             textureInternalFormat=GL.GL_RGB;
             textureDataFormat=GL.GL_RGB;
@@ -158,7 +169,7 @@ public class GLReadBufferUtil {
                            textureDataFormat,
                            textureDataType,
                            false, false, 
-                           flip,
+                           flipVertically,
                            readPixelBuffer,
                            null /* Flusher */);
                 newData = true;
diff --git a/src/jogl/classes/com/jogamp/opengl/util/awt/Screenshot.java b/src/jogl/classes/com/jogamp/opengl/util/awt/Screenshot.java
index 0022d5c2d..0eab65380 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/awt/Screenshot.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/awt/Screenshot.java
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright (c) 2013 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
@@ -43,17 +44,24 @@ import java.io.IOException;
 import java.nio.ByteBuffer;
 
 import javax.imageio.ImageIO;
+import javax.media.opengl.GL;
 import javax.media.opengl.GL2;
+import javax.media.opengl.GL2GL3;
+import javax.media.opengl.GLContext;
+import javax.media.opengl.GLDrawable;
 import javax.media.opengl.GLException;
-import javax.media.opengl.glu.gl2.GLUgl2;
 
 import com.jogamp.common.util.IOUtil;
 import com.jogamp.opengl.GLExtensions;
 import com.jogamp.opengl.util.GLPixelStorageModes;
 import com.jogamp.opengl.util.TGAWriter;
 
-/** Utilities for taking screenshots of OpenGL applications. */
-
+/** 
+ * Utilities for taking screenshots of OpenGL applications.
+ * @deprecated Please consider using {@link com.jogamp.opengl.util.GLReadBufferUtil}, 
+ *             which is AWT independent and does not require a CPU based vertical image flip 
+ *             in case drawable {@link GLDrawable#isGLOriented() is in OpenGL orientation}.
+ */
 public class Screenshot {
   private Screenshot() {}
 
@@ -149,17 +157,17 @@ public class Screenshot {
     writer.open(file, width, height, alpha);
     ByteBuffer bgr = writer.getImageData();
 
-    GL2 gl = GLUgl2.getCurrentGL2();
+    GL gl = GLContext.getCurrentGL();
 
     // Set up pixel storage modes
     GLPixelStorageModes psm = new GLPixelStorageModes();
     psm.setPackAlignment(gl, 1);
 
-    int readbackType = (alpha ? GL2.GL_ABGR_EXT : GL2.GL_BGR);
+    int readbackType = (alpha ? GL2.GL_ABGR_EXT : GL2GL3.GL_BGR);
 
     // read the BGR values into the image buffer
     gl.glReadPixels(x, y, width, height, readbackType,
-                    GL2.GL_UNSIGNED_BYTE, bgr);
+                    GL.GL_UNSIGNED_BYTE, bgr);
 
     // Restore pixel storage modes
     psm.restore(gl);
@@ -247,7 +255,7 @@ public class Screenshot {
                                                   int height,
                                                   boolean alpha) throws GLException {
     int bufImgType = (alpha ? BufferedImage.TYPE_4BYTE_ABGR : BufferedImage.TYPE_3BYTE_BGR);
-    int readbackType = (alpha ? GL2.GL_ABGR_EXT : GL2.GL_BGR);
+    int readbackType = (alpha ? GL2.GL_ABGR_EXT : GL2GL3.GL_BGR);
 
     if (alpha) {
       checkExtABGR();
@@ -256,7 +264,8 @@ public class Screenshot {
     // Allocate necessary storage
     BufferedImage image = new BufferedImage(width, height, bufImgType);
 
-    GL2 gl = GLUgl2.getCurrentGL2();
+    GLContext glc = GLContext.getCurrent();
+    GL gl = glc.getGL();
 
     // Set up pixel storage modes
     GLPixelStorageModes psm = new GLPixelStorageModes();
@@ -264,14 +273,16 @@ public class Screenshot {
 
     // read the BGR values into the image
     gl.glReadPixels(x, y, width, height, readbackType,
-                    GL2.GL_UNSIGNED_BYTE,
+                    GL.GL_UNSIGNED_BYTE,
                     ByteBuffer.wrap(((DataBufferByte) image.getRaster().getDataBuffer()).getData()));
 
     // Restore pixel storage modes
     psm.restore(gl);
 
-    // Must flip BufferedImage vertically for correct results
-    ImageUtil.flipImageVertically(image);
+    if( glc.getGLDrawable().isGLOriented() ) {
+        // Must flip BufferedImage vertically for correct results
+        ImageUtil.flipImageVertically(image);
+    }
     return image;
   }
 
@@ -392,7 +403,8 @@ public class Screenshot {
   }
 
   private static void checkExtABGR() {
-    GL2 gl = GLUgl2.getCurrentGL2();
+    GL gl = GLContext.getCurrentGL();
+
     if (!gl.isExtensionAvailable(GLExtensions.EXT_abgr)) {
       throw new IllegalArgumentException("Saving alpha channel requires GL_EXT_abgr");
     }
diff --git a/src/jogl/classes/com/jogamp/opengl/util/texture/TextureIO.java b/src/jogl/classes/com/jogamp/opengl/util/texture/TextureIO.java
index 0b0af5625..14ceb6421 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/texture/TextureIO.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/texture/TextureIO.java
@@ -1408,7 +1408,7 @@ public class TextureIO {
                     buf.rewind();
                     
                     PNGImage image = PNGImage.createFromData(data.getWidth(), data.getHeight(), -1f, -1f,
-                                                             bytesPerPixel, reversedChannels, buf);
+                                                             bytesPerPixel, reversedChannels, !data.getMustFlipVertically(), buf);
                     image.write(file, true);
                     return true;
                 }
diff --git a/src/jogl/classes/com/jogamp/opengl/util/texture/spi/PNGImage.java b/src/jogl/classes/com/jogamp/opengl/util/texture/spi/PNGImage.java
index 847451b41..b4b00e744 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/texture/spi/PNGImage.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/texture/spi/PNGImage.java
@@ -53,20 +53,39 @@ import com.jogamp.common.util.IOUtil;
 public class PNGImage {
     private static final boolean DEBUG = Debug.debug("PNGImage");    
     
-    /** Creates a PNGImage from data supplied by the end user. Shares
-        data with the passed ByteBuffer. Assumes the data is already in
-        the correct byte order for writing to disk, i.e., LUMINANCE, RGB or RGBA bottom-to-top (OpenGL coord). */
+    /**
+     * Creates a PNGImage from data supplied by the end user. Shares
+     * data with the passed ByteBuffer. Assumes the data is already in
+     * the correct byte order for writing to disk, i.e., LUMINANCE, RGB or RGBA.
+     * Orientation is <i>bottom-to-top</i> (OpenGL coord. default)
+     * or <i>top-to-bottom</i> depending on <code>isGLOriented</code>.
+     * 
+     * @param width
+     * @param height
+     * @param dpiX
+     * @param dpiY
+     * @param bytesPerPixel
+     * @param reversedChannels
+     * @param isGLOriented see {@link #isGLOriented()}.
+     * @param data
+     * @return
+     */
     public static PNGImage createFromData(int width, int height, double dpiX, double dpiY,
-                                          int bytesPerPixel, boolean reversedChannels, ByteBuffer data) {
-        return new PNGImage(width, height, dpiX, dpiY, bytesPerPixel, reversedChannels, data);
+                                          int bytesPerPixel, boolean reversedChannels, boolean isGLOriented, ByteBuffer data) {
+        return new PNGImage(width, height, dpiX, dpiY, bytesPerPixel, reversedChannels, isGLOriented, data);
     }
     
-    /** Reads a PNG image from the specified InputStream. */
+    /** 
+     * Reads a PNG image from the specified InputStream.
+     * <p>
+     * Implicitly flip image to GL orientation, see {@link #isGLOriented()}.
+     * </p> 
+     */
     public static PNGImage read(InputStream in) throws IOException {
         return new PNGImage(in);
     }
     
-    /** Reverse read and store, implicitly flip image to GL coords. */
+    /** Reverse read and store, implicitly flip image to GL orientation, see {@link #isGLOriented()}. */
     private static final int getPixelRGBA8(ByteBuffer d, int dOff, int[] scanline, int lineOff, boolean hasAlpha) {
     	if(hasAlpha) {
             d.put(dOff--, (byte)scanline[lineOff + 3]); // A
@@ -76,27 +95,28 @@ public class PNGImage {
         d.put(dOff--, (byte)scanline[lineOff    ]); // R
         return dOff;
     }
-    /** Reverse read and store, implicitly flip image from GL coords. Handle reversed channels (BGR[A])*/
-    private static int setPixelRGBA8(ImageLine line, int lineOff, ByteBuffer d, int dOff, boolean hasAlpha, boolean reversedChannels) {
-        if(reversedChannels) {
-            line.scanline[lineOff    ] = d.get(dOff--); // R, A
-            line.scanline[lineOff + 1] = d.get(dOff--); // G, B
-            line.scanline[lineOff + 2] = d.get(dOff--); // B, G
+    
+    /** Reverse write and store, implicitly flip image from current orientation, see {@link #isGLOriented()}. Handle reversed channels (BGR[A]). */
+    private int setPixelRGBA8(ImageLine line, int lineOff, ByteBuffer d, int dOff, boolean hasAlpha) {
+        if( reversedChannels ) {
             if(hasAlpha) {
-                line.scanline[lineOff + 3] = d.get(dOff--);// R
+                line.scanline[lineOff + 3] = d.get(dOff++); // A
             }
+            line.scanline[lineOff + 2] = d.get(dOff++); // R
+            line.scanline[lineOff + 1] = d.get(dOff++); // G
+            line.scanline[lineOff    ] = d.get(dOff++); // B
         } else {
+            line.scanline[lineOff    ] = d.get(dOff++); // R
+            line.scanline[lineOff + 1] = d.get(dOff++); // G
+            line.scanline[lineOff + 2] = d.get(dOff++); // B
             if(hasAlpha) {
-                line.scanline[lineOff + 3] = d.get(dOff--); // A
+                line.scanline[lineOff + 3] = d.get(dOff++); // A
             }
-            line.scanline[lineOff + 2] = d.get(dOff--); // B
-            line.scanline[lineOff + 1] = d.get(dOff--); // G
-            line.scanline[lineOff    ] = d.get(dOff--); // R
         }
-        return dOff;
+        return isGLOriented ? dOff - bytesPerPixel - bytesPerPixel : dOff;
     }
 
-    private PNGImage(int width, int height, double dpiX, double dpiY, int bytesPerPixel, boolean reversedChannels, ByteBuffer data) {
+    private PNGImage(int width, int height, double dpiX, double dpiY, int bytesPerPixel, boolean reversedChannels, boolean isGLOriented, ByteBuffer data) {
         pixelWidth=width;
         pixelHeight=height;
         dpi = new double[] { dpiX, dpiY };
@@ -109,6 +129,7 @@ public class PNGImage {
         }
         this.bytesPerPixel = bytesPerPixel;
         this.reversedChannels = reversedChannels;
+        this.isGLOriented = isGLOriented;
         this.data = data;        
     }
     
@@ -162,13 +183,14 @@ public class PNGImage {
         
         data = Buffers.newDirectByteBuffer(bytesPerPixel * pixelWidth * pixelHeight);
         reversedChannels = false; // RGB[A]
+        isGLOriented = true;
         int dataOff = bytesPerPixel * pixelWidth * pixelHeight - 1; // start at end-of-buffer, reverse store
 
         int[] rgbaScanline = indexed ? new int[imgInfo.cols * channels] : null;
         
         for (int row = 0; row < pixelHeight; row++) {
             final ImageLine l1 = pngr.readRow(row);
-            int lineOff = ( pixelWidth - 1 ) * bytesPerPixel ;      // start w/ last pixel in line, reverse read
+            int lineOff = ( pixelWidth - 1 ) * bytesPerPixel ; // start w/ last pixel in line, reverse read (PNG top-left -> OpenGL bottom-left origin)
             if( indexed ) {
                 for (int j = pixelWidth - 1; j >= 0; j--) {
                     rgbaScanline = ImageLineHelper.palette2rgb(l1, plte, trns, rgbaScanline); // reuse rgbaScanline and update if resized
@@ -189,7 +211,8 @@ public class PNGImage {
         pngr.end();
     }
     private final int pixelWidth, pixelHeight, glFormat, bytesPerPixel;
-    private boolean reversedChannels;
+    private final boolean reversedChannels;
+    private final boolean isGLOriented;
     private final double[] dpi;
     private final ByteBuffer data;
     
@@ -202,6 +225,16 @@ public class PNGImage {
     /** Returns true if data has the channels reversed to BGR or BGRA, otherwise RGB or RGBA is expected. */
     public boolean getHasReversedChannels() { return reversedChannels; }
     
+    /**
+     * Returns <code>true</code> if the drawable is rendered in 
+     * OpenGL's coordinate system, <i>origin at bottom left</i>.
+     * Otherwise returns <code>false</code>, i.e. <i>origin at top left</i>.
+     * <p>
+     * Default impl. is <code>true</code>, i.e. OpenGL coordinate system.
+     * </p> 
+     */
+    public boolean isGLOriented() { return isGLOriented; }
+    
     /** Returns the dpi of the image. */
     public double[] getDpi() { return dpi; }
     
@@ -231,20 +264,40 @@ public class PNGImage {
             // png.getMetadata().setText("my key", "my text");
             final boolean hasAlpha = 4 == bytesPerPixel;
             final ImageLine l1 = new ImageLine(imi);
-            int dataOff = bytesPerPixel * pixelWidth * pixelHeight - 1; // start at end-of-buffer, reverse read
-            for (int row = 0; row < pixelHeight; row++) {
-                int lineOff = ( pixelWidth - 1 ) * bytesPerPixel ;      // start w/ last pixel in line, reverse store
-                if(1 == bytesPerPixel) {
-                    for (int j = pixelWidth - 1; j >= 0; j--) {
-                        l1.scanline[lineOff--] = data.get(dataOff--); // // Luminance, 1 bytesPerPixel
-                    }
-                } else {
-                    for (int j = pixelWidth - 1; j >= 0; j--) {
-                        dataOff = setPixelRGBA8(l1, lineOff, data, dataOff, hasAlpha, reversedChannels);
-                        lineOff -= bytesPerPixel;
+            if( isGLOriented ) {
+                // start at last pixel at end-of-buffer, reverse read (OpenGL bottom-left -> PNG top-left origin)
+                int dataOff = ( pixelWidth * bytesPerPixel * ( pixelHeight - 1 ) ) + // full lines - 1 line 
+                              ( ( pixelWidth - 1 ) * bytesPerPixel );                // one line - 1 pixel
+                for (int row = 0; row < pixelHeight; row++) {
+                    int lineOff = ( pixelWidth - 1 ) * bytesPerPixel ; // start w/ last pixel in line, reverse store (OpenGL bottom-left -> PNG top-left origin)
+                    if(1 == bytesPerPixel) {
+                        for (int j = pixelWidth - 1; j >= 0; j--) {
+                            l1.scanline[lineOff--] = data.get(dataOff--); // // Luminance, 1 bytesPerPixel
+                        }
+                    } else {
+                        for (int j = pixelWidth - 1; j >= 0; j--) {
+                            dataOff = setPixelRGBA8(l1, lineOff, data, dataOff, hasAlpha);
+                            lineOff -= bytesPerPixel;
+                        }
                     }
+                    png.writeRow(l1, row);
                 }
-                png.writeRow(l1, row);
+            } else {
+                int dataOff = 0; // start at first pixel at start-of-buffer, normal read (same origin: top-left)
+                for (int row = 0; row < pixelHeight; row++) {
+                    int lineOff = 0; // start w/ first pixel in line, normal store (same origin: top-left)
+                    if(1 == bytesPerPixel) {
+                        for (int j = pixelWidth - 1; j >= 0; j--) {
+                            l1.scanline[lineOff++] = data.get(dataOff++); // // Luminance, 1 bytesPerPixel
+                        }
+                    } else {
+                        for (int j = pixelWidth - 1; j >= 0; j--) {
+                            dataOff = setPixelRGBA8(l1, lineOff, data, dataOff, hasAlpha);
+                            lineOff += bytesPerPixel;
+                        }
+                    }
+                    png.writeRow(l1, row);
+                }                
             }
             png.end();
         } finally {
diff --git a/src/jogl/classes/javax/media/opengl/GLCapabilities.java b/src/jogl/classes/javax/media/opengl/GLCapabilities.java
index 09db70f64..5b3eb9119 100644
--- a/src/jogl/classes/javax/media/opengl/GLCapabilities.java
+++ b/src/jogl/classes/javax/media/opengl/GLCapabilities.java
@@ -75,11 +75,6 @@ public class GLCapabilities extends Capabilities implements Cloneable, GLCapabil
   private boolean sampleBuffers = false;
   private int     numSamples    = 2;
 
-  // Bits for pbuffer creation
-  private boolean pbufferFloatingPointBuffers;
-  private boolean pbufferRenderToTexture;
-  private boolean pbufferRenderToTextureRectangle;
-
   /** Creates a GLCapabilities object. All attributes are in a default state.
     * @param glp GLProfile, or null for the default GLProfile
     * @throws GLException if no profile is given and no default profile is available for the default device.
@@ -122,9 +117,6 @@ public class GLCapabilities extends Capabilities implements Cloneable, GLCapabil
     accumBlueBits = source.getAccumBlueBits();
     accumAlphaBits = source.getAccumAlphaBits();
     sampleBuffers = source.getSampleBuffers();
-    pbufferFloatingPointBuffers = source.getPbufferFloatingPointBuffers();
-    pbufferRenderToTexture = source.getPbufferRenderToTexture();
-    pbufferRenderToTextureRectangle = source.getPbufferRenderToTextureRectangle();
     numSamples = source.getNumSamples();
     sampleExtension = source.getSampleExtension();
     return this;
@@ -148,9 +140,6 @@ public class GLCapabilities extends Capabilities implements Cloneable, GLCapabil
     hash = ((hash << 5) - hash) + this.accumGreenBits;
     hash = ((hash << 5) - hash) + this.accumBlueBits;
     hash = ((hash << 5) - hash) + this.accumAlphaBits;
-    hash = ((hash << 5) - hash) + ( this.pbufferFloatingPointBuffers ? 1 : 0 );
-    hash = ((hash << 5) - hash) + ( this.pbufferRenderToTexture ? 1 : 0 );
-    hash = ((hash << 5) - hash) + ( this.pbufferRenderToTextureRectangle ? 1 : 0 );
     return hash;
   }
 
@@ -174,10 +163,7 @@ public class GLCapabilities extends Capabilities implements Cloneable, GLCapabil
                   other.getAccumGreenBits()==accumGreenBits &&
                   other.getAccumBlueBits()==accumBlueBits &&
                   other.getAccumAlphaBits()==accumAlphaBits &&
-                  other.getSampleBuffers()==sampleBuffers &&
-                  other.getPbufferFloatingPointBuffers()==pbufferFloatingPointBuffers &&
-                  other.getPbufferRenderToTexture()==pbufferRenderToTexture &&
-                  other.getPbufferRenderToTextureRectangle()==pbufferRenderToTextureRectangle;
+                  other.getSampleBuffers()==sampleBuffers;
     if(res && sampleBuffers) {
         res = other.getNumSamples()==getNumSamples() &&
               other.getSampleExtension().equals(sampleExtension) ;
@@ -449,40 +435,6 @@ public class GLCapabilities extends Capabilities implements Cloneable, GLCapabil
     return sampleBuffers ? numSamples : 0;
   }
 
-  /** For pbuffers only, indicates whether floating-point buffers
-      should be used if available. Defaults to false. */
-  public void setPbufferFloatingPointBuffers(boolean enable) {
-    pbufferFloatingPointBuffers = enable;
-  }
-
-  @Override
-  public final boolean getPbufferFloatingPointBuffers() {
-    return pbufferFloatingPointBuffers;
-  }
-
-  /** For pbuffers only, indicates whether the render-to-texture
-      extension should be used if available.  Defaults to false. */
-  public void setPbufferRenderToTexture(boolean enable) {
-    pbufferRenderToTexture = enable;
-  }
-
-  @Override
-  public final boolean getPbufferRenderToTexture() {
-    return pbufferRenderToTexture;
-  }
-
-  /** For pbuffers only, indicates whether the
-      render-to-texture-rectangle extension should be used if
-      available. Defaults to false. */
-  public void setPbufferRenderToTextureRectangle(boolean enable) {
-    pbufferRenderToTextureRectangle = enable;
-  }
-
-  @Override
-  public final boolean getPbufferRenderToTextureRectangle() {
-    return pbufferRenderToTextureRectangle;
-  }
-
   @Override
   public StringBuilder toString(StringBuilder sink) {
     if(null == sink) {
@@ -526,10 +478,7 @@ public class GLCapabilities extends Capabilities implements Cloneable, GLCapabil
     }
     if(isPBuffer()) {
         if(ns) { sink.append(CSEP); }
-        sink.append("pbuffer [r2t ").append(pbufferRenderToTexture?1:0)
-            .append(", r2tr ").append(pbufferRenderToTextureRectangle?1:0)
-            .append(", float ").append(pbufferFloatingPointBuffers?1:0)
-            .append("]");                
+        sink.append("pbuffer");
         ns = true;
     }
     if(isBitmap()) {
diff --git a/src/jogl/classes/javax/media/opengl/GLCapabilitiesImmutable.java b/src/jogl/classes/javax/media/opengl/GLCapabilitiesImmutable.java
index ee261ca01..6af35021f 100644
--- a/src/jogl/classes/javax/media/opengl/GLCapabilitiesImmutable.java
+++ b/src/jogl/classes/javax/media/opengl/GLCapabilitiesImmutable.java
@@ -130,33 +130,6 @@ public interface GLCapabilitiesImmutable extends CapabilitiesImmutable {
     int getNumSamples();
 
     /**
-     * For pbuffers only, returns whether floating-point buffers should
-     * be used if available. 
-     * <p>
-     * Default is false.
-     * </p>
-     */
-    boolean getPbufferFloatingPointBuffers();
-
-    /**
-     * For pbuffers only, returns whether the render-to-texture
-     * extension should be used if available.  
-     * <p>
-     * Default is false.
-     * </p>
-     */
-    boolean getPbufferRenderToTexture();
-
-    /**
-     * For pbuffers only, returns whether the render-to-texture
-     * extension should be used. 
-     * <p>
-     * Default is false.
-     * </p>
-     */
-    boolean getPbufferRenderToTextureRectangle();
-
-    /**
      * Returns the number of stencil buffer bits.
      * <p>
      * Default is 0.
diff --git a/src/jogl/classes/javax/media/opengl/GLContext.java b/src/jogl/classes/javax/media/opengl/GLContext.java
index 23ca96504..d26076344 100644
--- a/src/jogl/classes/javax/media/opengl/GLContext.java
+++ b/src/jogl/classes/javax/media/opengl/GLContext.java
@@ -1026,16 +1026,6 @@ public abstract class GLContext {
    */
   public abstract int getDefaultReadBuffer();
   
-  /** On some platforms the mismatch between OpenGL's coordinate
-      system (origin at bottom left) and the window system's
-      coordinate system (origin at top left) necessitates a vertical
-      flip of pixels read from offscreen contexts.
-      <p>
-      Default impl. is <code>true</code>.
-      </p> 
-   */
-  public abstract boolean isGLOrientationFlippedVertical();
-  
   /** Get the default pixel data type, as required by e.g. {@link GL#glReadPixels(int, int, int, int, int, int, java.nio.Buffer)}. */
   public abstract int getDefaultPixelDataType();
   
diff --git a/src/jogl/classes/javax/media/opengl/GLDrawable.java b/src/jogl/classes/javax/media/opengl/GLDrawable.java
index 65c8b2ea5..369ea6d2b 100644
--- a/src/jogl/classes/javax/media/opengl/GLDrawable.java
+++ b/src/jogl/classes/javax/media/opengl/GLDrawable.java
@@ -145,6 +145,20 @@ public interface GLDrawable {
   /** Returns the current height of this GLDrawable. */
   public int getHeight();
 
+  /**
+   * Returns <code>true</code> if the drawable is rendered in 
+   * OpenGL's coordinate system, <i>origin at bottom left</i>.
+   * Otherwise returns <code>false</code>, i.e. <i>origin at top left</i>.
+   * <p>
+   * Default impl. is <code>true</code>, i.e. OpenGL coordinate system.
+   * </p> 
+   * <p>
+   * Currently only MS-Windows bitmap offscreen drawable uses a non OpenGL orientation and hence returns <code>false</code>.<br/>
+   * This removes the need of a vertical flip when used in AWT or Windows applications.
+   * </p>
+   */
+  public boolean isGLOriented();
+  
   /** Swaps the front and back buffers of this drawable. For {@link
       GLAutoDrawable} implementations, when automatic buffer swapping
       is enabled (as is the default), this method is called
diff --git a/src/jogl/classes/javax/media/opengl/GLDrawableFactory.java b/src/jogl/classes/javax/media/opengl/GLDrawableFactory.java
index e775afbff..9feb54a46 100644
--- a/src/jogl/classes/javax/media/opengl/GLDrawableFactory.java
+++ b/src/jogl/classes/javax/media/opengl/GLDrawableFactory.java
@@ -114,9 +114,6 @@ public abstract class GLDrawableFactory {
    */
   protected static final boolean disableOpenGLES = Debug.isPropertyDefined("jogl.disable.opengles", true);
 
-  static final String macosxFactoryClassNameCGL = "jogamp.opengl.macosx.cgl.MacOSXCGLDrawableFactory";
-  static final String macosxFactoryClassNameAWTCGL = "jogamp.opengl.macosx.cgl.awt.MacOSXAWTCGLDrawableFactory";
-
   private static volatile boolean isInit = false;
   private static GLDrawableFactory eglFactory;
   private static GLDrawableFactory nativeOSFactory;
@@ -154,11 +151,7 @@ public abstract class GLDrawableFactory {
         } else if ( nwt == NativeWindowFactory.TYPE_WINDOWS ) {
           factoryClassName = "jogamp.opengl.windows.wgl.WindowsWGLDrawableFactory";
         } else if ( nwt == NativeWindowFactory.TYPE_MACOSX ) {
-            if(ReflectionUtil.isClassAvailable(macosxFactoryClassNameAWTCGL, cl)) {
-                factoryClassName = macosxFactoryClassNameAWTCGL;
-            } else {
-                factoryClassName = macosxFactoryClassNameCGL;
-            }
+          factoryClassName = "jogamp.opengl.macosx.cgl.MacOSXCGLDrawableFactory";
         } else {
           // may use egl*Factory ..
           if (DEBUG || GLProfile.DEBUG) {
diff --git a/src/jogl/classes/javax/media/opengl/GLPbuffer.java b/src/jogl/classes/javax/media/opengl/GLPbuffer.java
index de7731a3b..12f57fcd8 100644
--- a/src/jogl/classes/javax/media/opengl/GLPbuffer.java
+++ b/src/jogl/classes/javax/media/opengl/GLPbuffer.java
@@ -50,32 +50,7 @@ package javax.media.opengl;
     @deprecated Use {@link GLOffscreenAutoDrawable} w/ {@link GLCapabilities#setFBO(boolean)} 
                 via {@link GLDrawableFactory#createOffscreenAutoDrawable(javax.media.nativewindow.AbstractGraphicsDevice, GLCapabilitiesImmutable, GLCapabilitiesChooser, int, int, GLContext) GLDrawableFactory.createOffscreenAutoDrawable(..)}.
   */
-
 public interface GLPbuffer extends GLAutoDrawable {
-  /** Indicates the GL_APPLE_float_pixels extension is being used for this pbuffer. */
-  public static final int APPLE_FLOAT = 1;
-
-  /** Indicates the GL_ATI_texture_float extension is being used for this pbuffer. */
-  public static final int ATI_FLOAT = 2;
-
-  /** Indicates the GL_NV_float_buffer extension is being used for this pbuffer. */
-  public static final int NV_FLOAT = 3;
-
-  /** Binds this pbuffer to its internal texture target. Only valid to
-      call if offscreen render-to-texture has been specified in the
-      NWCapabilities for this GLPbuffer. If the
-      render-to-texture-rectangle capability has also been specified,
-      this will use e.g. wglBindTexImageARB as its implementation and
-      cause the texture to be bound to e.g. the
-      GL_TEXTURE_RECTANGLE_NV state; otherwise, during the display()
-      phase the pixels will have been copied into an internal texture
-      target and this will cause that to be bound to the GL_TEXTURE_2D
-      state. */
-  public void bindTexture();
-
-  /** Unbinds the pbuffer from its internal texture target. */
-  public void releaseTexture();
-
   /** Destroys the native resources associated with this pbuffer. It
       is not valid to call display() or any other routines on this
       pbuffer after it has been destroyed. Before destroying the
@@ -84,13 +59,4 @@ public interface GLPbuffer extends GLAutoDrawable {
       #createContext}. */
   @Override
   public void destroy();
-
-  /** Indicates which vendor's extension is being used to support
-      floating point channels in this pbuffer if that capability was
-      requested in the NWCapabilities during pbuffer creation. Returns
-      one of NV_FLOAT, ATI_FLOAT or APPLE_FLOAT, or throws GLException
-      if floating-point channels were not requested for this pbuffer.
-      This function may only be called once the init method for this
-      pbuffer's GLEventListener has been called. */
-  public int getFloatingPointMode();
 }
diff --git a/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java b/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
index c1d5fb1d2..b7a24a777 100644
--- a/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
+++ b/src/jogl/classes/javax/media/opengl/awt/GLCanvas.java
@@ -887,6 +887,12 @@ public class GLCanvas extends Canvas implements AWTGLAutoDrawable, WindowClosing
   }
 
   @Override
+  public boolean isGLOriented() {
+    final GLDrawable _drawable = drawable;
+    return null != _drawable ? _drawable.isGLOriented() : true;
+  }
+  
+  @Override
   public NativeSurface getNativeSurface() {
     final GLDrawable _drawable = drawable;
     return (null != _drawable) ? _drawable.getNativeSurface() : null;
diff --git a/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java b/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java
index e82ad54c3..6ef695319 100644
--- a/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java
+++ b/src/jogl/classes/javax/media/opengl/awt/GLJPanel.java
@@ -83,17 +83,12 @@ import jogamp.opengl.GLDrawableFactoryImpl;
 import jogamp.opengl.GLDrawableHelper;
 import jogamp.opengl.GLDrawableImpl;
 import jogamp.opengl.awt.Java2D;
-import jogamp.opengl.awt.Java2DGLContext;
 import jogamp.opengl.util.glsl.GLSLTextureRaster;
 
 import com.jogamp.nativewindow.awt.AWTWindowClosingProtocol;
 import com.jogamp.opengl.FBObject;
 import com.jogamp.opengl.util.GLPixelStorageModes;
 
-// FIXME: Subclasses need to call resetGLFunctionAvailability() on their
-// context whenever the displayChanged() function is called on their
-// GLEventListeners
-
 /** A lightweight Swing component which provides OpenGL rendering
     support. Provided for compatibility with Swing user interfaces
     when adding a heavyweight doesn't work either because of
@@ -627,6 +622,14 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
   }
 
   @Override
+  public boolean isGLOriented() {
+    if(null != backend) {
+        return backend.getDrawable().isGLOriented();
+    }
+    return true;
+  }
+  
+  @Override
   public GLCapabilitiesImmutable getChosenGLCapabilities() {
     return backend.getChosenGLCapabilities();
   }
@@ -916,7 +919,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
     private final int fboTextureUnit = 0;
     
     private GLContextImpl offscreenContext;
-    private boolean flippedVertical;          
+    private boolean flipVertical;          
     
     // For saving/restoring of OpenGL state during ReadPixels
     private final GLPixelStorageModes psm =  new GLPixelStorageModes();
@@ -941,9 +944,9 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
           if( GLContext.CONTEXT_NOT_CURRENT < offscreenContext.makeCurrent() ) {
               isInitialized = true;
               final GL gl = offscreenContext.getGL();
-              flippedVertical = offscreenContext.isGLOrientationFlippedVertical();
+              flipVertical = offscreenDrawable.isGLOriented();
               final GLCapabilitiesImmutable chosenCaps = offscreenDrawable.getChosenGLCapabilities();
-              if( USE_GLSL_TEXTURE_RASTERIZER && chosenCaps.isFBO() && flippedVertical && gl.isGL2ES2() ) {
+              if( USE_GLSL_TEXTURE_RASTERIZER && chosenCaps.isFBO() && flipVertical && gl.isGL2ES2() ) {
                   final boolean _autoSwapBufferMode = helper.getAutoSwapBufferMode();
                   helper.setAutoSwapBufferMode(false);
                   final GLFBODrawable fboDrawable = (GLFBODrawable) offscreenDrawable;
@@ -1054,14 +1057,14 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
           glType   = GL.GL_UNSIGNED_BYTE; // offscreenContext.getDefaultPixelDataType();          
           
           offscreenImage = new BufferedImage(panelWidth, panelHeight, withAlpha ? BufferedImage.TYPE_INT_ARGB : BufferedImage.TYPE_INT_RGB);
-          if(!flippedVertical || null != glslTextureRaster) {
+          if(!flipVertical || null != glslTextureRaster) {
               final int[] readBackIntBuffer = ((DataBufferInt) offscreenImage.getRaster().getDataBuffer()).getData();
               readBackInts = IntBuffer.wrap(readBackIntBuffer);
           } else {
               readBackInts = IntBuffer.allocate(readBackWidthInPixels * readBackHeightInPixels);
           }
           if(DEBUG) {
-              System.err.println(getThreadName()+": GLJPanel.OffscreenBackend.postGL.0: flippedVertical "+flippedVertical+", glslTextureRaster "+(null!=glslTextureRaster));
+              System.err.println(getThreadName()+": GLJPanel.OffscreenBackend.postGL.0: flippedVertical "+flipVertical+", glslTextureRaster "+(null!=glslTextureRaster));
               System.err.println(getThreadName()+": GLJPanel.OffscreenBackend.postGL.0: panelSize "+panelWidth+"x"+panelHeight +", readBackSizeInPixels "+readBackWidthInPixels+"x"+readBackHeightInPixels);
               System.err.println(getThreadName()+": GLJPanel.OffscreenBackend.postGL.0: offscreenImage "+offscreenImage.getWidth()+"x"+offscreenImage.getHeight());
           }
@@ -1101,7 +1104,7 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
         } else {
             gl.glReadPixels(0, 0, readBackWidthInPixels, readBackHeightInPixels, glFormat, glType, readBackInts);
             
-            if ( flippedVertical ) {
+            if ( flipVertical ) {
                 // Copy temporary data into raster of BufferedImage for faster
                 // blitting Note that we could avoid this copy in the cases
                 // where !offscreenContext.offscreenImageNeedsVerticalFlip(),
@@ -1641,28 +1644,13 @@ public class GLJPanel extends JPanel implements AWTGLAutoDrawable, WindowClosing
                         System.err.println("-- Created External Drawable: "+joglDrawable);
                         System.err.println("-- Created Context: "+joglContext);
                     }
-                  } else if (factory.canCreateContextOnJava2DSurface(device)) {
-                    // Mac OS X code path
-                    joglContext = factory.createContextOnJava2DSurface(g, j2dContext);
-                    if (DEBUG) {
-                        System.err.println("-- Created Context: "+joglContext);
-                    }
                   }
-                  /*if (DEBUG) {
-                    joglContext.setGL(new DebugGL2(joglContext.getGL().getGL2()));
-                  }*/
-
                   if (Java2D.isFBOEnabled() &&
                       Java2D.getOGLSurfaceType(g) == Java2D.FBOBJECT &&
                       fbObjectWorkarounds) {
                     createNewDepthBuffer = true;
                   }
                 }
-                if (joglContext instanceof Java2DGLContext) {
-                  // Mac OS X code path
-                  ((Java2DGLContext) joglContext).setGraphics(g);
-                }
-
                 helper.invokeGL(joglDrawable, joglContext, updaterDisplayAction, updaterInitAction);
               }
             } finally {
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() {