refactoring part 3 (impl package): renamed com.sun.opengl -> com.jogamp.opengl.

87 files changed, 18909 insertions, 0 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/impl/DRIHack.java b/src/jogl/classes/com/jogamp/opengl/impl/DRIHack.java
new file mode 100755
index 000000000..ede966259
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/DRIHack.java
@@ -0,0 +1,127 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+import java.io.*;
+import java.security.*;
+import com.jogamp.gluegen.runtime.*;
+
+/**
+ * Helper class for working around problems with open-source DRI
+ * drivers. In the current DRI implementation it is required that the
+ * symbols in libGL.so.1.2 be globally visible to be accessible from
+ * other libraries that are dynamically loaded by the implementation.
+ * Applications may typically satisfy this need either by linking
+ * against libGL.so on the command line (-lGL) or by dlopen'ing
+ * libGL.so.1.2 with the RTLD_GLOBAL flag. The JOGL implementation
+ * links against libGL on all platforms rather than forcing all OpenGL
+ * entry points to be called through a function pointer. This allows
+ * the JOGL library to link directly to core 1.1 OpenGL entry points
+ * like glVertex3f, while calling through function pointers for entry
+ * points from later OpenGL versions as well as from
+ * extensions. However, because libjogl.so (which links against
+ * libGL.so) is loaded by the JVM, and because the JVM implicitly uses
+ * RTLD_LOCAL in the implementation of System.loadLibrary(), this
+ * means via transitivity that the symbols for libGL.so have only
+ * RTLD_LOCAL visibility to the rest of the application, so the DRI
+ * drivers can not find the symbols required. <P>
+ *
+ * There are at least two possible solutions. One would be to change
+ * the JOGL implementation to call through function pointers uniformly
+ * so that it does not need to link against libGL.so. This is
+ * possible, but requires changes to GlueGen and also is not really
+ * necessary in any other situation than with the DRI drivers. Another
+ * solution is to force the first load of libGL.so.1.2 to be done
+ * dynamically with RTLD_GLOBAL before libjogl.so is loaded and causes
+ * libGL.so.1.2 to be loaded again. The NativeLibrary class in the
+ * GlueGen runtime has this property, and we use it to implement this
+ * workaround.
+ */
+
+public class DRIHack {
+  private static final boolean DEBUG = Debug.debug("DRIHack");
+  private static boolean driHackNeeded;
+  private static NativeLibrary oglLib;
+
+  public static void begin() {
+    AccessController.doPrivileged(new PrivilegedAction() {
+        public Object run() {
+          String os = Debug.getProperty("os.name", false).toLowerCase();
+          // Do DRI hack on all Linux distributions for best robustness
+          driHackNeeded =
+            (os.startsWith("linux") ||
+             new File("/usr/lib/dri").exists() ||
+             new File("/usr/X11R6/lib/modules/dri").exists());
+          // Allow manual overriding for now as a workaround for
+          // problems seen in some situations -- needs more investigation
+          if (Debug.getProperty("jogl.drihack.disable", true) != null) {
+            driHackNeeded = false;
+          }
+          return null;
+        }
+      });
+
+    if (driHackNeeded) {
+      if (DEBUG) {
+        System.err.println("Beginning DRI hack");
+      }
+
+      // Try a few different variants for best robustness
+      // In theory probably only the first is necessary
+      oglLib = NativeLibrary.open("libGL.so.1", null);
+      if (DEBUG && oglLib != null) System.err.println(" Found libGL.so.1");
+      if (oglLib == null) {
+        oglLib = NativeLibrary.open("/usr/lib/libGL.so.1", null);
+        if (DEBUG && oglLib != null) System.err.println(" Found /usr/lib/libGL.so.1");
+      }
+    }
+  }
+
+  public static void end() {
+    if (oglLib != null) {
+      if (DEBUG) {
+        System.err.println("Ending DRI hack");
+      }
+
+      oglLib.close();
+      oglLib = null;
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/Debug.java b/src/jogl/classes/com/jogamp/opengl/impl/Debug.java
new file mode 100644
index 000000000..82a5f2ff2
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/Debug.java
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2003-2005 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 com.jogamp.opengl.impl;
+
+import java.security.*;
+
+/** Helper routines for logging and debugging. */
+
+public class Debug {
+  // Some common properties
+  private static boolean verbose;
+  private static boolean debugAll;
+  private static AccessControlContext localACC;
+  
+  static {
+    localACC=AccessController.getContext();
+    verbose = isPropertyDefined("jogl.verbose", true);
+    debugAll = isPropertyDefined("jogl.debug", true);
+    if (verbose) {
+       Package p = Package.getPackage("javax.media.opengl");
+       System.err.println("JOGL specification version " + p.getSpecificationVersion());
+       System.err.println("JOGL implementation version " + p.getImplementationVersion());
+       System.err.println("JOGL implementation vendor " + p.getImplementationVendor());
+    }
+  }
+
+  static int getIntProperty(final String property, final boolean jnlpAlias) {
+      return getIntProperty(property, jnlpAlias, localACC);
+  }
+
+  public static int getIntProperty(final String property, final boolean jnlpAlias, final AccessControlContext acc) {
+    int i=0;
+    try {
+        Integer iv = Integer.valueOf(Debug.getProperty(property, jnlpAlias, acc));
+        i = iv.intValue();
+    } catch (NumberFormatException nfe) {}
+    return i;
+  }
+
+  static boolean getBooleanProperty(final String property, final boolean jnlpAlias) {
+    return getBooleanProperty(property, jnlpAlias, localACC);
+  }
+
+  public static boolean getBooleanProperty(final String property, final boolean jnlpAlias, final AccessControlContext acc) {
+    Boolean b = Boolean.valueOf(Debug.getProperty(property, jnlpAlias, acc));
+    return b.booleanValue();
+  }
+
+  static boolean isPropertyDefined(final String property, final boolean jnlpAlias) {
+    return isPropertyDefined(property, jnlpAlias, localACC);
+  }
+
+  public static boolean isPropertyDefined(final String property, final boolean jnlpAlias, final AccessControlContext acc) {
+    return (Debug.getProperty(property, jnlpAlias, acc) != null) ? true : false;
+  }
+
+  static String getProperty(final String property, final boolean jnlpAlias) {
+    return getProperty(property, jnlpAlias, localACC);
+  }
+
+  public static String getProperty(final String property, final boolean jnlpAlias, final AccessControlContext acc) {
+    String s=null;
+    if(null!=acc && acc.equals(localACC)) {
+        s = (String) AccessController.doPrivileged(new PrivilegedAction() {
+            public Object run() {
+              String val=null;
+              try {
+                  val = System.getProperty(property);
+              } catch (Exception e) {}
+              if(null==val && jnlpAlias && !property.startsWith(jnlp_prefix)) {
+                  try {
+                      val = System.getProperty(jnlp_prefix + property);
+                  } catch (Exception e) {}
+              }
+              return val;
+            }
+          });
+    } else {
+        try {
+            s = System.getProperty(property);
+        } catch (Exception e) {}
+        if(null==s && jnlpAlias && !property.startsWith(jnlp_prefix)) {
+            try {
+                s = System.getProperty(jnlp_prefix + property);
+            } catch (Exception e) {}
+        }
+    }
+    return s;
+  }
+  public static final String jnlp_prefix = "jnlp." ;
+
+  public static boolean verbose() {
+    return verbose;
+  }
+
+  public static boolean debugAll() {
+    return debugAll;
+  }
+
+  public static boolean debug(String subcomponent) {
+    return debugAll() || isPropertyDefined("jogl.debug." + subcomponent, true);
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/ExtensionAvailabilityCache.java b/src/jogl/classes/com/jogamp/opengl/impl/ExtensionAvailabilityCache.java
new file mode 100644
index 000000000..f36c4f749
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/ExtensionAvailabilityCache.java
@@ -0,0 +1,390 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+import javax.media.opengl.*;
+import java.util.*;
+// FIXME: refactor Java SE dependencies
+//import java.util.regex.*;
+import java.lang.reflect.*;
+
+/**
+ * A utility object intended to be used by implementations to act as a cache
+ * of which OpenGL extensions are currently available on both the host machine
+ * and display.
+ */
+public final class ExtensionAvailabilityCache {
+  private static final boolean DEBUG = Debug.debug("ExtensionAvailabilityCache");
+  private static final boolean DEBUG_AVAILABILITY = Debug.isPropertyDefined("ExtensionAvailabilityCache", true);
+
+  ExtensionAvailabilityCache(GLContextImpl context)
+  {
+    this.context = context;
+  }
+
+  /**
+   * Flush the cache. The cache will be rebuilt lazily as calls to {@link
+   * #isExtensionAvailable(String)} are received.
+   */
+  public void flush()
+  {
+    if(DEBUG) {
+        System.out.println("ExtensionAvailabilityCache: Flush availability OpenGL "+majorVersion+"."+minorVersion);
+    }
+    availableExtensionCache.clear();
+    initialized = false;
+    majorVersion = 1;
+    minorVersion = 0;
+  }
+
+  /**
+   * Flush the cache and rebuild the cache.
+   */
+  public void reset() {
+    flush();
+    initAvailableExtensions();
+  }
+
+  public boolean isInitialized() {
+    return initialized && !availableExtensionCache.isEmpty() ;
+  }
+
+  public boolean isExtensionAvailable(String glExtensionName) {
+    initAvailableExtensions();
+    return availableExtensionCache.contains(mapGLExtensionName(glExtensionName));
+  }
+
+  public String getPlatformExtensionsString() {
+    initAvailableExtensions();
+    return glXExtensions;
+  }
+
+  public String getGLExtensions() {
+    initAvailableExtensions();
+    if(DEBUG) {
+        System.err.println("ExtensionAvailabilityCache: getGLExtensions() called");
+    }
+    return glExtensions;
+  }
+
+  public int getMajorVersion() {
+    initAvailableExtensions();
+    return majorVersion;
+  }
+
+  public int getMinorVersion() {
+    initAvailableExtensions();
+    return minorVersion;
+  }
+
+  private void initAvailableExtensions() {
+    // if hash is empty (meaning it was flushed), pre-cache it with the list
+    // of extensions that are in the GL_EXTENSIONS string
+    if (availableExtensionCache.isEmpty() || !initialized) {
+      GL gl = context.getGL();
+
+      if (DEBUG) {
+         System.err.println("ExtensionAvailabilityCache: Pre-caching init "+gl+", GL_VERSION "+gl.glGetString(GL.GL_VERSION));
+      }
+
+      // Set version
+      Version version = new Version(gl.glGetString(GL.GL_VERSION));
+      if (version.isValid()) {
+        majorVersion = version.getMajor();
+        minorVersion = version.getMinor();
+
+        if( !gl.isGL3() &&
+            ( majorVersion > 3 ||
+              ( majorVersion == 3 && minorVersion >= 1 ) ) ) {
+            // downsize version to 3.0 in case we are not using GL3 (3.1)
+            majorVersion = 3;
+            minorVersion = 0;
+        }
+      }
+
+      boolean useGetStringi = false;
+
+      if ( majorVersion > 3 ||
+           ( majorVersion == 3 && minorVersion >= 0 ) ||
+           gl.isGL3() ) {
+          if ( ! gl.isGL2GL3() ) {
+            if(DEBUG) {
+                System.err.println("ExtensionAvailabilityCache: GL >= 3.1 usage, but no GL2GL3 interface: "+gl.getClass().getName());
+            }
+          } else if ( ! gl.isFunctionAvailable("glGetStringi") ) {
+            if(DEBUG) {
+                System.err.println("ExtensionAvailabilityCache: GL >= 3.1 usage, but no glGetStringi");
+            }
+          } else {
+              useGetStringi = true;
+          }
+      }
+
+      if (DEBUG) {
+        System.err.println("ExtensionAvailabilityCache: Pre-caching extension availability OpenGL "+majorVersion+"."+minorVersion+
+                           ", use "+ ( useGetStringi ? "glGetStringi" : "glGetString" ) );
+      }
+
+      StringBuffer sb = new StringBuffer();
+      if(useGetStringi) {
+        GL2GL3 gl2gl3 = gl.getGL2GL3();
+        int[] numExtensions = { 0 } ;
+        gl2gl3.glGetIntegerv(gl2gl3.GL_NUM_EXTENSIONS, numExtensions, 0);
+        for (int i = 0; i < numExtensions[0]; i++) {
+            sb.append(gl2gl3.glGetStringi(gl2gl3.GL_EXTENSIONS, i));
+            if(i < numExtensions[0]) {
+                sb.append(" ");
+            }
+        }
+      } else {
+        sb.append(gl.glGetString(GL.GL_EXTENSIONS));
+      }
+      glExtensions = sb.toString();
+      glXExtensions = context.getPlatformExtensionsString();
+
+      sb.append(" ");
+      sb.append(glXExtensions);
+
+      String allAvailableExtensions = sb.toString();
+      if (DEBUG_AVAILABILITY) {
+        System.err.println("ExtensionAvailabilityCache: Available extensions: " + allAvailableExtensions);
+        System.err.println("ExtensionAvailabilityCache: GL vendor: " + gl.glGetString(GL.GL_VENDOR));
+      }
+      StringTokenizer tok = new StringTokenizer(allAvailableExtensions);
+      while (tok.hasMoreTokens()) {
+        String availableExt = tok.nextToken().trim();
+        availableExt = availableExt.intern();
+        availableExtensionCache.add(availableExt);
+        if (DEBUG_AVAILABILITY) {
+          System.err.println("ExtensionAvailabilityCache:   Available: " + availableExt);
+        }
+      }
+
+      // Put GL version strings in the table as well
+      // FIXME: this needs to be adjusted when the major rev changes
+      // beyond the known ones
+      int major = majorVersion;
+      int minor = minorVersion;
+      while (major > 0) {
+        while (minor >= 0) {
+          availableExtensionCache.add("GL_VERSION_" + major + "_" + minor);
+          if (DEBUG) {
+            System.err.println("ExtensionAvailabilityCache: Added GL_VERSION_" + major + "_" + minor + " to known extensions");
+          }
+          --minor;
+        }
+
+        switch (major) {
+        case 3:
+          if(gl.isGL3()) {
+              // GL3 is a GL 3.1 forward compatible context,
+              // hence no 2.0, 1.0 - 1.5 GL versions are supported.
+              major=0; 
+          }
+          // Restart loop at version 2.1
+          minor = 1;
+          break;
+        case 2:
+          // Restart loop at version 1.5
+          minor = 5;
+          break;
+        case 1:
+          break;
+        }
+
+        --major;
+      }
+
+      // put a dummy var in here so that the cache is no longer empty even if
+      // no extensions are in the GL_EXTENSIONS string
+      availableExtensionCache.add("<INTERNAL_DUMMY_PLACEHOLDER>");
+
+      initialized = true;
+    }
+  }
+
+  // FIXME: hack to re-enable GL_NV_vertex_array_range extension after
+  // recent upgrade to new wglext.h and glxext.h headers
+  private static String mapGLExtensionName(String extensionName) {
+    if (extensionName != null &&
+        (extensionName.equals("WGL_NV_vertex_array_range") ||
+         extensionName.equals("GLX_NV_vertex_array_range"))) 
+      return "GL_NV_vertex_array_range";
+    return extensionName;
+  }
+
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  //
+
+  private boolean initialized = false;
+  private int majorVersion = 1;
+  private int minorVersion = 0;
+  private String glExtensions = null;
+  private String glXExtensions = null;
+  private HashSet availableExtensionCache = new HashSet(50);
+  private GLContextImpl context;
+
+  /**
+   * A class for storing and comparing OpenGL version numbers.
+   * This only works for desktop OpenGL at the moment.
+   */
+  private static class Version implements Comparable
+  {
+    private boolean valid;
+    private int major, minor, sub;
+    public Version(int majorRev, int minorRev, int subMinorRev)
+    {
+      major = majorRev;
+      minor = minorRev;
+      sub = subMinorRev;
+    }
+
+    /**
+     * @param versionString must be of the form "GL_VERSION_X" or
+     * "GL_VERSION_X_Y" or "GL_VERSION_X_Y_Z" or "X.Y", where X, Y,
+     * and Z are integers.
+     *
+     * @exception IllegalArgumentException if the argument is not a valid
+     * OpenGL version identifier
+     */
+    public Version(String versionString)
+    {
+      try 
+      {
+        if (versionString.startsWith("GL_VERSION_"))
+        {
+          StringTokenizer tok = new StringTokenizer(versionString, "_");
+
+          tok.nextToken(); // GL_
+          tok.nextToken(); // VERSION_ 
+          if (!tok.hasMoreTokens()) { major = 0; return; }
+          major = Integer.valueOf(tok.nextToken()).intValue();
+          if (!tok.hasMoreTokens()) { minor = 0; return; }
+          minor = Integer.valueOf(tok.nextToken()).intValue();
+          if (!tok.hasMoreTokens()) { sub = 0; return; }
+          sub = Integer.valueOf(tok.nextToken()).intValue();
+        }
+        else
+        {
+          int radix = 10;
+          if (versionString.length() > 2) {
+            if (Character.isDigit(versionString.charAt(0)) &&
+                versionString.charAt(1) == '.' &&
+                Character.isDigit(versionString.charAt(2))) {
+              major = Character.digit(versionString.charAt(0), radix);
+              minor = Character.digit(versionString.charAt(2), radix);
+
+              // See if there's version-specific information which might
+              // imply a more recent OpenGL version
+              StringTokenizer tok = new StringTokenizer(versionString, " ");
+              if (tok.hasMoreTokens()) {
+                tok.nextToken();
+                if (tok.hasMoreTokens()) {
+                  String token = tok.nextToken();
+                  int i = 0;
+                  while (i < token.length() && !Character.isDigit(token.charAt(i))) {
+                    i++;
+                  }
+                  if (i < token.length() - 2 &&
+                      Character.isDigit(token.charAt(i)) &&
+                      token.charAt(i+1) == '.' &&
+                      Character.isDigit(token.charAt(i+2))) {
+                    int altMajor = Character.digit(token.charAt(i), radix);
+                    int altMinor = Character.digit(token.charAt(i+2), radix);
+                    // Avoid possibly confusing situations by putting some
+                    // constraints on the upgrades we do to the major and
+                    // minor versions
+                    if ((altMajor == major && altMinor > minor) ||
+                        altMajor == major + 1) {
+                      major = altMajor;
+                      minor = altMinor;
+                    }
+                  }
+                }
+              }
+            }
+          }
+        }
+        valid = true;
+      }
+      catch (Exception e)
+      {
+        // FIXME: refactor desktop OpenGL dependencies and make this
+        // class work properly for OpenGL ES
+        System.err.println("ExtensionAvailabilityCache: FunctionAvailabilityCache.Version.<init>: "+e);
+        major = 1;
+        minor = 0;
+        /*
+        throw (IllegalArgumentException)
+          new IllegalArgumentException(
+            "Illegally formatted version identifier: \"" + versionString + "\"")
+              .initCause(e);
+        */
+      }
+    }
+
+    public boolean isValid() {
+      return valid;
+    }
+
+    public int compareTo(Object o)
+    {
+      Version vo = (Version)o;
+      if (major > vo.major) return 1; 
+      else if (major < vo.major) return -1; 
+      else if (minor > vo.minor) return 1; 
+      else if (minor < vo.minor) return -1; 
+      else if (sub > vo.sub) return 1; 
+      else if (sub < vo.sub) return -1; 
+
+      return 0; // they are equal
+    }
+
+    public int getMajor() {
+      return major;
+    }
+
+    public int getMinor() {
+      return minor;
+    }
+    
+  } // end class Version
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/GLBufferSizeTracker.java b/src/jogl/classes/com/jogamp/opengl/impl/GLBufferSizeTracker.java
new file mode 100755
index 000000000..48affa534
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/GLBufferSizeTracker.java
@@ -0,0 +1,188 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+import java.util.*;
+import javax.media.opengl.*;
+
+/**
+ * Tracks as closely as possible the sizes of allocated OpenGL buffer
+ * objects. When glMapBuffer or glMapBufferARB is called, in order to
+ * turn the resulting base address into a java.nio.ByteBuffer, we need
+ * to know the size in bytes of the allocated OpenGL buffer object.
+ * Previously we would compute this size by using
+ * glGetBufferParameterivARB with a pname of GL_BUFFER_SIZE, but
+ * it appears doing so each time glMapBuffer is called is too costly
+ * on at least Apple's new multithreaded OpenGL implementation. <P>
+ *
+ * Instead we now try to track the sizes of allocated buffer objects.
+ * We watch calls to glBindBuffer to see which buffer is bound to
+ * which target and to glBufferData to see how large the buffer's
+ * allocated size is. When glMapBuffer is called, we consult our table
+ * of buffer sizes to see if we can return an answer without a glGet
+ * call. <P>
+ *
+ * We share the GLBufferSizeTracker objects among all GLContexts for
+ * which sharing is enabled, because the namespace for buffer objects
+ * is the same for these contexts. <P>
+ *
+ * Tracking the state of which buffer objects are bound is done in the
+ * GLBufferStateTracker and is not completely trivial. In the face of
+ * calls to glPushClientAttrib / glPopClientAttrib we currently punt
+ * and re-fetch the bound buffer object for the state in question;
+ * see, for example, glVertexPointer and the calls down to
+ * GLBufferStateTracker.getBoundBufferObject(). Note that we currently
+ * ignore new binding targets such as GL_TRANSFORM_FEEDBACK_BUFFER_NV;
+ * the fact that new binding targets may be added in the future makes
+ * it impossible to cache state for these new targets. <P>
+ *
+ * Ignoring new binding targets, the primary situation in which we may
+ * not be able to return a cached answer is in the case of an error,
+ * where glBindBuffer may not have been called before trying to call
+ * glBufferData. Also, if external native code modifies a buffer
+ * object, we may return an incorrect answer. (FIXME: this case
+ * requires more thought, and perhaps stochastic and
+ * exponential-fallback checking. However, note that it can only occur
+ * in the face of external native code which requires that the
+ * application be signed anyway, so there is no security risk in this
+ * area.)
+ */
+
+public class GLBufferSizeTracker {
+  // Map from buffer names to sizes.
+  // Note: should probably have some way of shrinking this map, but
+  // can't just make it a WeakHashMap because nobody holds on to the
+  // keys; would have to always track creation and deletion of buffer
+  // objects, which is probably sub-optimal. The expected usage
+  // pattern of buffer objects indicates that the fact that this map
+  // never shrinks is probably not that bad.
+  private Map/*<Integer,Integer>*/ bufferSizeMap =
+    Collections.synchronizedMap(new HashMap/*<Integer,Integer>*/());
+
+  private static final boolean DEBUG = Debug.debug("GLBufferSizeTracker");
+
+  public GLBufferSizeTracker() {
+  }
+
+  public void setBufferSize(GLBufferStateTracker bufferStateTracker,
+                            int target,
+                            GL caller,
+                            int size) {
+    // Need to do some similar queries to getBufferSize below
+    int buffer = bufferStateTracker.getBoundBufferObject(target, caller);
+    boolean valid = bufferStateTracker.isBoundBufferObjectKnown(target);
+    if (valid) {
+      if (buffer == 0) {
+        // FIXME: this really should not happen if we know what's
+        // going on. Very likely there is an OpenGL error in the
+        // application if we get here. Could silently return 0, but it
+        // seems better to get an early warning that something is
+        // wrong.
+        throw new GLException("Error: no OpenGL buffer object appears to be bound to target 0x" +
+                              Integer.toHexString(target));
+      }
+      bufferSizeMap.put(new Integer(buffer), new Integer(size));
+    }
+    // We don't know the current buffer state. Note that the buffer
+    // state tracker will have made the appropriate OpenGL query if it
+    // didn't know what was going on, so at this point we have nothing
+    // left to do except drop this piece of information on the floor.
+  }
+
+  public int getBufferSize(GLBufferStateTracker bufferStateTracker,
+                           int target,
+                           GL caller) {
+    // See whether we know what buffer is currently bound to the given
+    // state
+    int buffer = bufferStateTracker.getBoundBufferObject(target, caller);
+    boolean valid = bufferStateTracker.isBoundBufferObjectKnown(target);
+    if (valid) {
+      if (buffer == 0) {
+        // FIXME: this really should not happen if we know what's
+        // going on. Very likely there is an OpenGL error in the
+        // application if we get here. Could silently return 0, but it
+        // seems better to get an early warning that something is
+        // wrong.
+        throw new GLException("Error: no OpenGL buffer object appears to be bound to target 0x" +
+                              Integer.toHexString(target));
+      }
+      // See whether we know the size of this buffer object; at this
+      // point we almost certainly should if the application is
+      // written correctly
+      Integer key = new Integer(buffer);
+      Integer sz = (Integer) bufferSizeMap.get(key);
+      if (sz == null) {
+        // For robustness, try to query this value from the GL as we used to
+        int[] tmp = new int[1];
+        caller.glGetBufferParameteriv(target, GL.GL_BUFFER_SIZE, tmp, 0);
+        if (tmp[0] == 0) {
+          // Assume something is wrong rather than silently going along
+          throw new GLException("Error: buffer size returned by glGetBufferParameteriv was zero; probably application error");
+        }
+        // Assume we just don't know what's happening
+        sz = new Integer(tmp[0]);
+        bufferSizeMap.put(key, sz);
+        if (DEBUG) {
+          System.err.println("GLBufferSizeTracker.getBufferSize(): made slow query to cache size " +
+                             tmp[0] +
+                             " for buffer " +
+                             buffer);
+        }
+      }
+      return sz.intValue();
+    }
+    // We don't know what's going on in this case; query the GL for an answer
+    int[] tmp = new int[1];
+    caller.glGetBufferParameteriv(target, GL.GL_BUFFER_SIZE, tmp, 0);
+    if (DEBUG) {
+      System.err.println("GLBufferSizeTracker.getBufferSize(): no cached buffer information");
+    }
+    return tmp[0];
+  }
+
+  // This should be called on any major event where we might start
+  // producing wrong answers, such as OpenGL context creation and
+  // destruction if we don't know whether there are other currently-
+  // created contexts that might be keeping the buffer objects alive
+  // that we're dealing with
+  public void clearCachedBufferSizes() {
+    bufferSizeMap.clear();
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/GLBufferStateTracker.java b/src/jogl/classes/com/jogamp/opengl/impl/GLBufferStateTracker.java
new file mode 100755
index 000000000..df8d673a1
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/GLBufferStateTracker.java
@@ -0,0 +1,169 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+import java.util.*;
+import javax.media.opengl.*;
+
+/**
+ * Tracks as closely as possible which OpenGL buffer object is bound
+ * to which binding target in the current OpenGL context.
+ * GLBufferStateTracker objects are allocated on a per-OpenGL-context basis.
+ * This class is used to verify that e.g. the vertex
+ * buffer object extension is in use when the glVertexPointer variant
+ * taking a long as argument is called. <P>
+ * 
+ * Note that because the enumerated value used for the binding of a
+ * buffer object (e.g. GL_ARRAY_BUFFER) is different than that used to
+ * query the binding using glGetIntegerv (e.g.
+ * GL_ARRAY_BUFFER_BINDING), then in the face of new binding targets
+ * being added to the GL (e.g. GL_TRANSFORM_FEEDBACK_BUFFER_NV) it is
+ * impossible to set up a query of the buffer object currently bound
+ * to a particular state. It turns out that for some uses, such as
+ * finding the size of the currently bound buffer, this doesn't
+ * matter, though of course without knowing the buffer object we can't
+ * re-associate the queried size with the buffer object ID. <P>
+ *
+ * Because the namespace of buffer objects is the unsigned integers
+ * with 0 reserved by the GL, and because we have to be able to return
+ * both 0 and other integers as valid answers from
+ * getBoundBufferObject(), we need a second query, which is to ask
+ * whether we know the state of the binding for a given target. For
+ * "unknown" targets such as GL_TRANSFORM_FEEDBACK_BUFFER_NV we return
+ * false from this, but we also clear the valid bit and later refresh
+ * the binding state if glPushClientAttrib / glPopClientAttrib are
+ * called, since we don't want the complexity of tracking stacks of
+ * these attributes.
+ *
+ */
+
+public class GLBufferStateTracker {
+  private static final boolean DEBUG = Debug.debug("GLBufferStateTracker");
+
+  private static final Integer arrayBufferEnum        = new Integer(GL.GL_ARRAY_BUFFER);
+  private static final Integer elementArrayBufferEnum = new Integer(GL.GL_ELEMENT_ARRAY_BUFFER);
+  private static final Integer pixelPackBufferEnum    = new Integer(GL2.GL_PIXEL_PACK_BUFFER);
+  private static final Integer pixelUnpackBufferEnum  = new Integer(GL2.GL_PIXEL_UNPACK_BUFFER);
+  private static final Integer zero                   = new Integer(0);
+
+  // Maps binding targets to buffer objects. A null value indicates
+  // that the binding is unknown. A zero value indicates that it is
+  // known that no buffer is bound to the target.
+  private Map/*<Integer,Integer>*/ bindingMap = new HashMap/*<Integer,Integer>*/();
+
+  private int[] bufTmp = new int[1];
+
+  public GLBufferStateTracker() {
+    // Start with known unbound targets for known keys
+    bindingMap.put(arrayBufferEnum,        zero);
+    bindingMap.put(elementArrayBufferEnum, zero);
+    bindingMap.put(pixelPackBufferEnum,    zero);
+    bindingMap.put(pixelUnpackBufferEnum,  zero);
+  }
+
+  public void setBoundBufferObject(int target, int buffer) {
+    bindingMap.put(box(target), box(buffer));
+  }
+
+  /** Note: returns an unspecified value if the binding for the
+      specified target (e.g. GL_ARRAY_BUFFER) is currently unknown.
+      You must use isBoundBufferObjectKnown() to see whether the
+      return value is valid. */
+  public int getBoundBufferObject(int target, GL caller) {
+    Integer value = (Integer) bindingMap.get(box(target));
+    if (value == null) {
+      // User probably either called glPushClientAttrib /
+      // glPopClientAttrib or is querying an unknown target. See
+      // whether we know how to fetch this state.
+      boolean gotQueryTarget = true;
+      int queryTarget = 0;
+      switch (target) {
+        case GL.GL_ARRAY_BUFFER:          queryTarget = GL.GL_ARRAY_BUFFER_BINDING;         break;
+        case GL.GL_ELEMENT_ARRAY_BUFFER:  queryTarget = GL.GL_ELEMENT_ARRAY_BUFFER_BINDING; break;
+        case GL2.GL_PIXEL_PACK_BUFFER:    queryTarget = GL2.GL_PIXEL_PACK_BUFFER_BINDING;    break;
+        case GL2.GL_PIXEL_UNPACK_BUFFER:  queryTarget = GL2.GL_PIXEL_UNPACK_BUFFER_BINDING;  break;
+        default:                          gotQueryTarget = false; break;
+      }
+      if (gotQueryTarget) {
+        caller.glGetIntegerv(queryTarget, bufTmp, 0);
+        if (DEBUG) {
+          System.err.println("GLBufferStateTracker.getBoundBufferObject(): queried bound buffer " +
+                             bufTmp[0] +
+                             " for query target 0x" + Integer.toHexString(queryTarget));
+        }
+        setBoundBufferObject(target, bufTmp[0]);
+        // Try once more
+        return getBoundBufferObject(target, caller);
+      }
+      return 0;
+    }
+    return value.intValue();
+  }
+
+  /** Indicates whether the binding state for the specified target is
+      currently known. Should be called after getBoundBufferObject()
+      because that method may change the answer for a given target. */
+  public boolean isBoundBufferObjectKnown(int target) {
+    return (bindingMap.get(box(target)) != null);
+  }
+
+  /** Clears out the known/unknown state of the various buffer object
+      binding states. These will be refreshed later on an as-needed
+      basis. This is called by the implementations of
+      glPushClientAttrib / glPopClientAttrib. Might want to call this
+      from GLContext.makeCurrent() in the future to possibly increase
+      the robustness of these caches in the face of external native
+      code manipulating OpenGL state. */
+  public void clearBufferObjectState() {
+    bindingMap.clear();
+  }
+
+  // FIXME: could largely remove this and use Integer.valueOf() in JDK 5
+  private static Integer box(int key) {
+    switch (key) {
+      case 0:                          return zero;
+      case GL.GL_ARRAY_BUFFER:         return arrayBufferEnum;
+      case GL.GL_ELEMENT_ARRAY_BUFFER: return elementArrayBufferEnum;
+      case GL2.GL_PIXEL_PACK_BUFFER:   return pixelPackBufferEnum;
+      case GL2.GL_PIXEL_UNPACK_BUFFER: return pixelUnpackBufferEnum;
+      default:                         return new Integer(key);
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/GLContextImpl.java b/src/jogl/classes/com/jogamp/opengl/impl/GLContextImpl.java
new file mode 100644
index 000000000..32a32e322
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/GLContextImpl.java
@@ -0,0 +1,602 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+import java.nio.*;
+import java.lang.reflect.*;
+
+import javax.media.opengl.*;
+import com.sun.nativewindow.impl.NWReflection;
+import com.jogamp.gluegen.runtime.*;
+import com.jogamp.gluegen.runtime.opengl.*;
+
+public abstract class GLContextImpl extends GLContext {
+  protected GLContextLock lock = new GLContextLock();
+  protected static final boolean DEBUG = Debug.debug("GLContext");
+  protected static final boolean VERBOSE = Debug.verbose();
+  // NOTE: default sense of GLContext optimization disabled in JSR-231
+  // 1.0 beta 5 due to problems on X11 platforms (both Linux and
+  // Solaris) when moving and resizing windows. Apparently GLX tokens
+  // get sent to the X server under the hood (and out from under the
+  // cover of the AWT lock) in these situations. Users requiring
+  // multi-screen X11 applications can manually enable this flag. It
+  // basically had no tangible effect on the Windows or Mac OS X
+  // platforms anyway in particular with the disabling of the
+  // GLWorkerThread which we found to be necessary in 1.0 beta 4.
+  protected boolean optimizationEnabled = Debug.isPropertyDefined("jogl.GLContext.optimize", true);
+
+  // Cache of the functions that are available to be called at the current
+  // moment in time
+  protected ExtensionAvailabilityCache extensionAvailability;
+  // Table that holds the addresses of the native C-language entry points for
+  // OpenGL functions.
+  private ProcAddressTable glProcAddressTable;
+
+  // Tracks creation and initialization of buffer objects to avoid
+  // repeated glGet calls upon glMapBuffer operations
+  private GLBufferSizeTracker bufferSizeTracker; // Singleton - Set by GLContextShareSet
+  private GLBufferStateTracker bufferStateTracker = new GLBufferStateTracker();
+  private GLStateTracker glStateTracker = new GLStateTracker();
+
+  protected GLDrawableImpl drawable;
+  protected GLDrawableImpl drawableRead;
+
+  protected GL gl;
+
+  public GLContextImpl(GLDrawableImpl drawable, GLDrawableImpl drawableRead, GLContext shareWith) {
+    extensionAvailability = new ExtensionAvailabilityCache(this);
+    if (shareWith != null) {
+      GLContextShareSet.registerSharing(this, shareWith);
+    }
+    GLContextShareSet.registerForBufferObjectSharing(shareWith, this);
+    // This must occur after the above calls into the
+    // GLContextShareSet, which set up state needed by the GL object
+    setGL(createGL(drawable.getGLProfile()));
+
+    this.drawable = drawable;
+    setGLDrawableRead(drawableRead);
+  }
+
+  public GLContextImpl(GLDrawableImpl drawable, GLContext shareWith) {
+    this(drawable, null, shareWith);
+  }
+
+  public void setGLDrawableRead(GLDrawable read) {
+    boolean lockHeld = lock.isHeld();
+    if(lockHeld) {
+        release();
+    }
+    drawableRead = ( null != read ) ? (GLDrawableImpl) read : drawable;
+    if(lockHeld) {
+        makeCurrent();
+    }
+  }
+
+  public GLDrawable getGLDrawable() {
+    return drawable;
+  }
+
+  public GLDrawable getGLDrawableRead() {
+    return drawableRead;
+  }
+
+  public GLDrawableImpl getDrawableImpl() {
+    return (GLDrawableImpl) getGLDrawable();
+  }
+
+  public int makeCurrent() throws GLException {
+    // Support calls to makeCurrent() over and over again with
+    // different contexts without releasing them
+    // Could implement this more efficiently without explicit
+    // releasing of the underlying context; would require more error
+    // checking during the makeCurrentImpl phase
+    GLContext current = getCurrent();
+    if (current != null) {
+      if (current == this) {
+        // Assume we don't need to make this context current again
+        // For Mac OS X, however, we need to update the context to track resizes
+        update();
+        return CONTEXT_CURRENT;
+      } else {
+        current.release();
+      }
+    }
+
+    if (GLWorkerThread.isStarted() &&
+        !GLWorkerThread.isWorkerThread()) {
+      // Kick the GLWorkerThread off its current context
+      GLWorkerThread.invokeLater(new Runnable() { public void run() {} });
+    }
+
+    lock.lock();
+    int res = 0;
+    try {
+      res = makeCurrentImpl();
+
+      /* FIXME: refactor dependence on Java 2D / JOGL bridge
+      if ((tracker != null) &&
+          (res == CONTEXT_CURRENT_NEW)) {
+        // Increase reference count of GLObjectTracker
+        tracker.ref();
+      }
+      */
+    } catch (GLException e) {
+      lock.unlock();
+      throw(e);
+    }
+    if (res == CONTEXT_NOT_CURRENT) {
+      lock.unlock();
+    } else {
+      if(res == CONTEXT_CURRENT_NEW) {
+        // check if the drawable's and the GL's GLProfile are equal
+        // throws an GLException if not 
+        getGLDrawable().getGLProfile().verifyEquality(gl.getGLProfile());
+      }
+      setCurrent(this);
+
+      /* FIXME: refactor dependence on Java 2D / JOGL bridge
+
+      // Try cleaning up any stale server-side OpenGL objects
+      // FIXME: not sure what to do here if this throws
+      if (deletedObjectTracker != null) {
+        deletedObjectTracker.clean(getGL());
+      }
+      */
+    }
+    return res;
+  }
+
+  protected abstract int makeCurrentImpl() throws GLException;
+
+  public void release() throws GLException {
+    if (!lock.isHeld()) {
+      throw new GLException("Context not current on current thread");
+    }
+    setCurrent(null);
+    try {
+      releaseImpl();
+    } finally {
+      lock.unlock();
+    }
+  }
+
+  protected abstract void releaseImpl() throws GLException;
+
+  public void destroy() {
+    if (lock.isHeld()) {
+        // release current context 
+        release();
+    }
+
+    // Must hold the lock around the destroy operation to make sure we
+    // don't destroy the context out from under another thread rendering to it
+    lock.lock();
+    try {
+      /* FIXME: refactor dependence on Java 2D / JOGL bridge
+      if (tracker != null) {
+        // Don't need to do anything for contexts that haven't been
+        // created yet
+        if (isCreated()) {
+          // If we are tracking creation and destruction of server-side
+          // OpenGL objects, we must decrement the reference count of the
+          // GLObjectTracker upon context destruction.
+          //
+          // Note that we can only eagerly delete these server-side
+          // objects if there is another context currrent right now
+          // which shares textures and display lists with this one.
+          tracker.unref(deletedObjectTracker);
+        }
+      }
+      */
+  
+      // Because we don't know how many other contexts we might be
+      // sharing with (and it seems too complicated to implement the
+      // GLObjectTracker's ref/unref scheme for the buffer-related
+      // optimizations), simply clear the cache of known buffers' sizes
+      // when we destroy contexts
+      if (bufferSizeTracker != null) {
+          bufferSizeTracker.clearCachedBufferSizes();
+      }
+
+      if (bufferStateTracker != null) {
+          bufferStateTracker.clearBufferObjectState();
+      }
+  
+      if (glStateTracker != null) {
+          glStateTracker.clearStates(false);
+      }
+  
+      destroyImpl();
+    } finally {
+      lock.unlock();
+    }
+  }
+
+  protected abstract void destroyImpl() throws GLException;
+
+  // This is only needed for Mac OS X on-screen contexts
+  protected void update() throws GLException {
+  }
+
+  public boolean isSynchronized() {
+    return !lock.getFailFastMode();
+  }
+
+  public void setSynchronized(boolean isSynchronized) {
+    lock.setFailFastMode(!isSynchronized);
+  }
+
+  public final GL getGL() {
+    return gl;
+  }
+
+  public GL setGL(GL gl) {
+    if(DEBUG) {
+        String sgl1 = (null!=this.gl)?this.gl.getClass().toString()+", "+this.gl.toString():new String("<null>");
+        String sgl2 = (null!=gl)?gl.getClass().toString()+", "+gl.toString():new String("<null>");
+        Exception e = new Exception("setGL: "+Thread.currentThread()+", "+sgl1+" -> "+sgl2);
+        e.printStackTrace();
+    }
+    this.gl = gl;
+    return gl;
+  }
+
+  public abstract Object getPlatformGLExtensions();
+
+  //----------------------------------------------------------------------
+  // Helpers for various context implementations
+  //
+
+  private Object createInstance(GLProfile glp, String suffix, Class[] cstrArgTypes, Object[] cstrArgs) {
+    return NWReflection.createInstance(glp.getGLImplBaseClassName()+suffix, cstrArgTypes, cstrArgs);
+  }
+
+  /** Create the GL for this context. */
+  protected GL createGL(GLProfile glp) {
+    GL gl = (GL) createInstance(glp, "Impl", new Class[] { GLProfile.class, GLContextImpl.class }, new Object[] { glp, this } );
+
+    /* FIXME: refactor dependence on Java 2D / JOGL bridge
+    if (tracker != null) {
+      gl.setObjectTracker(tracker);
+    }
+    */
+    return gl;
+  }
+  
+  public final ProcAddressTable getGLProcAddressTable() {
+    return glProcAddressTable;
+  }
+  
+  /**
+   * Shall return the platform extension ProcAddressTable,
+   * ie for GLXExt, EGLExt, ..
+   */
+  public abstract ProcAddressTable getPlatformExtProcAddressTable();
+
+  /**
+   * Pbuffer support; given that this is a GLContext associated with a
+   * pbuffer, binds this pbuffer to its texture target.
+   */
+  public abstract void bindPbufferToTexture();
+
+  /**
+   * Pbuffer support; given that this is a GLContext associated with a
+   * pbuffer, releases this pbuffer from its texture target.
+   */
+  public abstract void releasePbufferFromTexture();
+
+  public abstract ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3);
+
+  public void setSwapInterval(final int interval) {
+    GLContext current = getCurrent();
+    if (current != this) {
+        throw new GLException("This context is not current. Current context: "+current+
+                              ", this context "+this);
+    }
+    setSwapIntervalImpl(interval);
+  }
+
+  protected int currentSwapInterval = -1; // default: not set yet ..
+
+  public int getSwapInterval() {
+    return currentSwapInterval;
+  }
+
+  protected void setSwapIntervalImpl(final int interval) {
+    // nop per default ..
+  }
+
+  /** Maps the given "platform-independent" function name to a real function
+      name. Currently this is only used to map "glAllocateMemoryNV" and
+      associated routines to wglAllocateMemoryNV / glXAllocateMemoryNV. */
+  protected abstract String mapToRealGLFunctionName(String glFunctionName);
+
+  /** Maps the given "platform-independent" extension name to a real
+      function name. Currently this is only used to map
+      "GL_ARB_pbuffer" and "GL_ARB_pixel_format" to "WGL_ARB_pbuffer"
+      and "WGL_ARB_pixel_format" (not yet mapped to X11). */
+  protected abstract String mapToRealGLExtensionName(String glExtensionName);
+
+  /** Helper routine which resets a ProcAddressTable generated by the
+      GLEmitter by looking up anew all of its function pointers. */
+  protected void resetProcAddressTable(Object table) {
+    GLProcAddressHelper.resetProcAddressTable(table, getDrawableImpl().getDynamicLookupHelper() );
+  }
+
+  /** Indicates whether the underlying OpenGL context has been
+      created. This is used to manage sharing of display lists and
+      textures between contexts. */
+  public abstract boolean isCreated();
+
+  /**
+   * Sets the OpenGL implementation class and
+   * the cache of which GL functions are available for calling through this
+   * context. See {@link #isFunctionAvailable(String)} for more information on
+   * the definition of "available".
+   *
+   * @param force force the setting, even if is already being set.
+   *              This might be usefull if you change the OpenGL implementation.
+   */
+  protected void setGLFunctionAvailability(boolean force) {
+    if(null!=this.gl && null!=glProcAddressTable && !force) {
+        return; // already done and not forced
+    }
+    if(null==this.gl || force) {
+        setGL(createGL(getGLDrawable().getGLProfile()));
+    }
+
+    updateGLProcAddressTable();
+  }
+
+  /**
+   * Updates the cache of which GL functions are available for calling through this
+   * context. See {@link #isFunctionAvailable(String)} for more information on
+   * the definition of "available".
+   */
+  protected void updateGLProcAddressTable() {
+    if(null==this.gl) {
+        throw new GLException("setGLFunctionAvailability not called yet");
+    }
+    if (DEBUG) {
+      System.err.println(getThreadName() + ": !!! Initializing OpenGL extension address table for " + this);
+    }
+    if (glProcAddressTable == null) {
+      glProcAddressTable = (ProcAddressTable) createInstance(gl.getGLProfile(), "ProcAddressTable", new Class[0], null);
+      // FIXME: cache ProcAddressTables by capability bits so we can
+      // share them among contexts with the same capabilities
+    }
+    resetProcAddressTable(getGLProcAddressTable());
+
+    extensionAvailability.reset();
+  }
+
+  /**
+   * Returns true if the specified OpenGL core- or extension-function can be
+   * successfully called using this GL context given the current host (OpenGL
+   * <i>client</i>) and display (OpenGL <i>server</i>) configuration.
+   *
+   * See {@link GL#isFunctionAvailable(String)} for more details.
+   *
+   * @param glFunctionName the name of the OpenGL function (e.g., use
+   * "glPolygonOffsetEXT" or "glPolygonOffset" to check if the {@link
+   * javax.media.opengl.GL#glPolygonOffset(float,float)} is available).
+   */
+  public boolean isFunctionAvailable(String glFunctionName) {
+    if(isCreated()) {
+        // Check GL 1st (cached)
+        ProcAddressTable pTable = getGLProcAddressTable();
+        try {
+            if(0!=pTable.getAddressFor(glFunctionName)) {
+                return true;
+            }
+        } catch (Exception e) {}
+
+        // Check platform extensions 2nd (cached)
+        pTable = getPlatformExtProcAddressTable();
+        try {
+            if(0!=pTable.getAddressFor(glFunctionName)) {
+                return true;
+            }
+        } catch (Exception e) {}
+    }
+    // dynamic function lookup at last incl name aliasing (not cached)
+    DynamicLookupHelper dynLookup = getDrawableImpl().getDynamicLookupHelper();
+    String tmpBase = GLExtensionNames.normalizeVEN(GLExtensionNames.normalizeARB(glFunctionName, true), true);
+    long addr = 0;
+    int  variants = GLExtensionNames.getFuncNamePermutationNumber(tmpBase);
+    for(int i = 0; 0==addr && i < variants; i++) {
+        String tmp = GLExtensionNames.getFuncNamePermutation(tmpBase, i);
+        try {
+            addr = dynLookup.dynamicLookupFunction(tmp);
+        } catch (Exception e) { }
+    }
+    if(0!=addr) {
+        return true;
+    }
+    return false;
+  }
+
+  /**
+   * Returns true if the specified OpenGL extension can be
+   * successfully called using this GL context given the current host (OpenGL
+   * <i>client</i>) and display (OpenGL <i>server</i>) configuration.
+   *
+   * See {@link GL#isExtensionAvailable(String)} for more details.
+   *
+   * @param glExtensionName the name of the OpenGL extension (e.g.,
+   * "GL_VERTEX_PROGRAM_ARB").
+   */
+  public boolean isExtensionAvailable(String glExtensionName) {
+      return extensionAvailability.isExtensionAvailable(mapToRealGLExtensionName(glExtensionName));
+  }
+
+  public String getPlatformExtensionsString() {
+      return extensionAvailability.getPlatformExtensionsString();
+  }
+
+  public String getGLExtensions() {
+      return extensionAvailability.getGLExtensions();
+  }
+
+  public int getMajorVersion() {
+      return extensionAvailability.getMajorVersion();
+  }
+
+  public int getMinorVersion() {
+      return extensionAvailability.getMinorVersion();
+  }
+
+  public boolean isExtensionCacheInitialized() {
+      return extensionAvailability.isInitialized();
+  }
+
+  /** Indicates which floating-point pbuffer implementation is in
+      use. Returns one of GLPbuffer.APPLE_FLOAT, GLPbuffer.ATI_FLOAT,
+      or GLPbuffer.NV_FLOAT. */
+  public int getFloatingPointMode() throws GLException {
+    throw new GLException("Not supported on non-pbuffer contexts");
+  }
+
+  /** 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. */
+  public abstract boolean offscreenImageNeedsVerticalFlip();
+
+  /** Only called for offscreen contexts; needed by glReadPixels */
+  public abstract int getOffscreenContextPixelDataType();
+
+  protected static String getThreadName() {
+    return Thread.currentThread().getName();
+  }
+
+  public static String toHexString(long hex) {
+    return "0x" + Long.toHexString(hex);
+  }
+
+  //----------------------------------------------------------------------
+  // Helpers for buffer object optimizations
+  
+  public void setBufferSizeTracker(GLBufferSizeTracker bufferSizeTracker) {
+    this.bufferSizeTracker = bufferSizeTracker;
+  }
+
+  public GLBufferSizeTracker getBufferSizeTracker() {
+    return bufferSizeTracker;
+  }
+
+  public GLBufferStateTracker getBufferStateTracker() {
+    return bufferStateTracker;
+  }
+
+  public GLStateTracker getGLStateTracker() {
+    return glStateTracker;
+  }
+
+  //---------------------------------------------------------------------------
+  // Helpers for context optimization where the last context is left
+  // current on the OpenGL worker thread
+  //
+
+  public boolean isOptimizable() {
+    return optimizationEnabled;
+  }
+
+  public boolean hasWaiters() {
+    return lock.hasWaiters();
+  }
+
+  /* FIXME: needed only by the Java 2D / JOGL bridge; refactor
+
+  public GLContextImpl(GLContext shareWith) {
+    this(shareWith, false);
+  }
+  
+  public GLContextImpl(GLContext shareWith, boolean dontShareWithJava2D) {
+    extensionAvailability = new ExtensionAvailabilityCache(this);
+    GLContext shareContext = shareWith;
+    if (!dontShareWithJava2D) {
+      shareContext = Java2D.filterShareContext(shareWith);
+    }
+    if (shareContext != null) {
+      GLContextShareSet.registerSharing(this, shareContext);
+    }
+    // Always indicate real behind-the-scenes sharing to track deleted objects
+    if (shareContext == null) {
+      shareContext = Java2D.filterShareContext(shareWith);
+    }
+    GLContextShareSet.registerForObjectTracking(shareWith, this, shareContext);
+    GLContextShareSet.registerForBufferObjectSharing(shareWith, this);
+    // This must occur after the above calls into the
+    // GLContextShareSet, which set up state needed by the GL object
+    setGL(createGL());
+  }
+
+  //---------------------------------------------------------------------------
+  // Helpers for integration with Java2D/OpenGL pipeline when FBOs are
+  // being used
+  //
+
+  public void setObjectTracker(GLObjectTracker tracker) {
+    this.tracker = tracker;
+  }
+  
+  public GLObjectTracker getObjectTracker() {
+    return tracker;
+  }
+
+  public void setDeletedObjectTracker(GLObjectTracker deletedObjectTracker) {
+    this.deletedObjectTracker = deletedObjectTracker;
+  }
+
+  public GLObjectTracker getDeletedObjectTracker() {
+    return deletedObjectTracker;
+  }
+
+  // Tracks creation and deletion of server-side OpenGL objects when
+  // the Java2D/OpenGL pipeline is active and using FBOs to render
+  private GLObjectTracker tracker;
+  // Supports deletion of these objects when no other context is
+  // current which can support immediate deletion of them
+  private GLObjectTracker deletedObjectTracker;
+
+  */
+
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/GLContextLock.java b/src/jogl/classes/com/jogamp/opengl/impl/GLContextLock.java
new file mode 100644
index 000000000..56a5b023f
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/GLContextLock.java
@@ -0,0 +1,126 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+import javax.media.opengl.*;
+
+/** Implements the makeCurrent / release locking behavior of the
+    GLContext class. When "fail fast mode" is enabled, attempts to
+    lock the same GLContextLock on more than one thread cause
+    GLException to be raised. This lock is not recursive. Attempts to
+    lock it more than once on a given thread will cause GLException to
+    be raised. */
+
+public class GLContextLock {
+  private Object lock = new Object();
+  private Thread owner;
+  private boolean failFastMode = true;
+  private volatile int waiters;
+
+  /** Locks this GLContextLock on the current thread. If fail fast
+      mode is enabled and the GLContextLock is already owned by
+      another thread, throws GLException. */
+  public void lock() throws GLException {
+    synchronized(lock) {
+      Thread current = Thread.currentThread();
+      if (owner == null) {
+        owner = current;
+      } else if (owner != current) {
+        while (owner != null) {
+          if (failFastMode) {
+            throw new GLException("Attempt to make context current on thread " + current +
+                                  " which is already current on thread " + owner);
+          } else {
+            try {
+              ++waiters;
+              lock.wait();
+            } catch (InterruptedException e) {
+              throw new GLException(e);
+            } finally {
+              --waiters;
+            }
+          }
+        }
+        owner = current;
+      } else {
+        throw new GLException("Attempt to make the same context current twice on thread " + current);
+      }
+    }
+  }
+
+  /** Unlocks this GLContextLock. */
+  public void unlock() throws GLException {
+    synchronized (lock) {
+      Thread current = Thread.currentThread();
+      if (owner == current) {
+        owner = null;
+        lock.notifyAll();
+      } else {
+        if (owner != null) {
+          throw new GLException("Attempt by thread " + current +
+                                " to release context owned by thread " + owner);
+        } else {
+          throw new GLException("Attempt by thread " + current +
+                                " to release unowned context");
+        }
+      }
+    }
+  }
+
+  /** Indicates whether this lock is held by the current thread. */
+  public boolean isHeld() {
+    synchronized(lock) {
+      Thread current = Thread.currentThread();
+      return (owner == current);
+    }
+  }
+
+  public void setFailFastMode(boolean onOrOff) {
+    failFastMode = onOrOff;
+  }
+
+  public boolean getFailFastMode() {
+    return failFastMode;
+  }
+
+  public boolean hasWaiters() {
+    return (waiters != 0);
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/GLContextShareSet.java b/src/jogl/classes/com/jogamp/opengl/impl/GLContextShareSet.java
new file mode 100644
index 000000000..abeb231f4
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/GLContextShareSet.java
@@ -0,0 +1,293 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+// FIXME: refactor Java SE dependencies
+// import java.awt.GraphicsConfiguration;
+// import java.awt.GraphicsDevice;
+// import java.awt.GraphicsEnvironment;
+import java.lang.ref.*;
+import java.util.*;
+import javax.media.opengl.*;
+
+/** Provides a mechanism by which OpenGL contexts can share textures
+    and display lists in the face of multithreading and asynchronous
+    context creation as is inherent in the AWT and Swing. */
+
+public class GLContextShareSet {
+  // FIXME: refactor Java SE dependencies
+  //  private static boolean forceTracking = Debug.isPropertyDefined("jogl.glcontext.forcetracking");
+  private static final boolean DEBUG = Debug.debug("GLContextShareSet");
+
+  // This class is implemented with a WeakHashMap that goes from the
+  // contexts as keys to a complex data structure as value that tracks
+  // context creation and deletion.
+
+  private static Map/*<GLContext, ShareSet>*/ shareMap = new WeakHashMap();
+  private static Object dummyValue = new Object();
+
+  private static class ShareSet {
+    private Map allShares       = new WeakHashMap();
+    private Map createdShares   = new WeakHashMap();
+    private Map destroyedShares = new WeakHashMap();
+
+    public void add(GLContext ctx) {
+      if (allShares.put(ctx, dummyValue) == null) {
+        // FIXME: downcast to GLContextImpl undesirable
+        if (((GLContextImpl) ctx).isCreated()) {
+          createdShares.put(ctx, dummyValue);
+        } else {
+          destroyedShares.put(ctx, dummyValue);
+        }
+      }      
+    }
+
+    public GLContext getCreatedShare(GLContext ignore) {
+      for (Iterator iter = createdShares.keySet().iterator(); iter.hasNext(); ) {
+        GLContext ctx = (GLContext) iter.next();
+        if (ctx != ignore) {
+          return ctx;
+        }
+      }
+      return null;
+    }
+
+    public void contextCreated(GLContext ctx) {
+      Object res = destroyedShares.remove(ctx);
+      assert res != null : "State of ShareSet corrupted; thought context " +
+        ctx + " should have been in destroyed set but wasn't";
+      res = createdShares.put(ctx, dummyValue);
+      assert res == null : "State of ShareSet corrupted; thought context " +
+        ctx + " shouldn't have been in created set but was";
+    }
+
+    public void contextDestroyed(GLContext ctx) {
+      Object res = createdShares.remove(ctx);
+      assert res != null : "State of ShareSet corrupted; thought context " +
+        ctx + " should have been in created set but wasn't";
+      res = destroyedShares.put(ctx, dummyValue);
+      assert res == null : "State of ShareSet corrupted; thought context " +
+        ctx + " shouldn't have been in destroyed set but was";
+    }
+  }
+
+  /** Indicate that contexts <code>share1</code> and
+      <code>share2</code> will share textures and display lists. Both
+      must be non-null. */
+  public static synchronized void registerSharing(GLContext share1, GLContext share2) {
+    if (share1 == null || share2 == null) {
+      throw new IllegalArgumentException("Both share1 and share2 must be non-null");
+    }
+    ShareSet share = entryFor(share1);
+    if (share == null) {
+      share = entryFor(share2);
+    }
+    if (share == null) {
+      share = new ShareSet();
+    }
+    share.add(share1);
+    share.add(share2);
+    addEntry(share1, share);
+    addEntry(share2, share);
+  }
+
+  public static synchronized GLContext getShareContext(GLContext contextToCreate) {
+    ShareSet share = entryFor(contextToCreate);
+    if (share == null) {
+      return null;
+    }
+    return share.getCreatedShare(contextToCreate);
+  }
+
+  public static synchronized void contextCreated(GLContext context) {
+    ShareSet share = entryFor(context);
+    if (share != null) {
+      share.contextCreated(context);
+    }
+  }
+
+  public static synchronized void contextDestroyed(GLContext context) {
+    ShareSet share = entryFor(context);
+    if (share != null) {
+      share.contextDestroyed(context);
+    }
+  }
+
+  /** In order to avoid glGet calls for buffer object checks related
+      to glVertexPointer, etc. calls as well as glMapBuffer calls, we
+      need to share the same GLBufferSizeTracker object between
+      contexts sharing textures and display lists. For now we keep
+      this mechanism orthogonal to the GLObjectTracker to hopefully
+      keep things easier to understand. (The GLObjectTracker is
+      currently only needed in a fairly esoteric case, when the
+      Java2D/JOGL bridge is active, but the GLBufferSizeTracker
+      mechanism is now always required.) */
+  public static void registerForBufferObjectSharing(GLContext olderContextOrNull, GLContext newContext) {
+    // FIXME: downcasts to GLContextImpl undesirable
+    GLContextImpl older = (GLContextImpl) olderContextOrNull;
+    GLContextImpl newer = (GLContextImpl) newContext;
+    GLBufferSizeTracker tracker = null;
+    if (older != null) {
+      tracker = older.getBufferSizeTracker();
+      assert (tracker != null)
+        : "registerForBufferObjectSharing was not called properly for the older context, or has a bug in it";
+    }
+    if (tracker == null) {
+      tracker = new GLBufferSizeTracker();
+    }
+    newer.setBufferSizeTracker(tracker);
+  }
+
+  // FIXME: refactor Java SE dependencies
+  //  /** Indicates that the two supplied contexts (which must be able to
+  //      share textures and display lists) should be in the same
+  //      namespace for tracking of server-side object creation and
+  //      deletion. Because the sharing necessary behind the scenes is
+  //      different than that requested at the user level, the two notions
+  //      are different. This must be called immediately after the
+  //      creation of the new context (which is the second argument)
+  //      before any server-side OpenGL objects have been created in that
+  //      context. */
+  //  public static void registerForObjectTracking(GLContext olderContextOrNull,
+  //                                               GLContext newContext,
+  //                                               GLContext realShareContext) {
+  //    if (isObjectTrackingEnabled() || isObjectTrackingDebuggingEnabled()) {
+  //      GLContextImpl impl1 = null;      
+  //      GLContextImpl impl2 = null;      
+  //      GLObjectTracker tracker = null;
+  //
+  //      synchronized (GLContextShareSet.class) {
+  //        if (olderContextOrNull != null &&
+  //            newContext != null) {
+  //          if (entryFor(olderContextOrNull) != entryFor(newContext)) {
+  //            throw new IllegalArgumentException("old and new contexts must be able to share textures and display lists");
+  //          }
+  //        }
+  //
+  //        // FIXME: downcast to GLContextImpl undesirable
+  //        impl1 = (GLContextImpl) olderContextOrNull;
+  //        impl2 = (GLContextImpl) newContext;
+  //
+  //        GLObjectTracker deletedObjectTracker = null;
+  //        GLContextImpl shareImpl = (GLContextImpl) realShareContext;
+  //        // Before we zap the "user-level" object trackers, make sure
+  //        // that all contexts in the share set share the destroyed object
+  //        // tracker
+  //        if (shareImpl != null) {
+  //          deletedObjectTracker = shareImpl.getDeletedObjectTracker();
+  //        }
+  //        if (deletedObjectTracker == null) {
+  //          // Must create one and possibly set it up in the older context
+  //          deletedObjectTracker = new GLObjectTracker();
+  //          if (DEBUG) {
+  //            System.err.println("Created deletedObjectTracker " + deletedObjectTracker + " because " +
+  //                               ((shareImpl == null) ? "shareImpl was null" : "shareImpl's (" + shareImpl + ") deletedObjectTracker was null"));
+  //          }
+  //
+  //          if (shareImpl != null) {
+  //            // FIXME: think should really assert in this case
+  //            shareImpl.setDeletedObjectTracker(deletedObjectTracker);
+  //            if (DEBUG) {
+  //              System.err.println("Set deletedObjectTracker " + deletedObjectTracker + " in shareImpl context " + shareImpl);
+  //            }
+  //          }
+  //        }
+  //        impl2.setDeletedObjectTracker(deletedObjectTracker);
+  //        if (DEBUG) {
+  //          System.err.println("Set deletedObjectTracker " + deletedObjectTracker + " in impl2 context " + impl2);
+  //        }
+  //      }
+  //
+  //      // Must not hold lock around this operation
+  //      // Don't share object trackers with the primordial share context from Java2D
+  //      if (Java2D.isOGLPipelineActive()) {
+  //        // FIXME: probably need to do something different here
+  //        // Need to be able to figure out the GraphicsDevice for the
+  //        // older context if it's on-screen
+  //        GraphicsDevice device = GraphicsEnvironment.
+  //          getLocalGraphicsEnvironment().
+  //          getDefaultScreenDevice();
+  //        GLContext j2dShareContext = Java2D.getShareContext(device);
+  //        if (impl1 != null && impl1 == j2dShareContext) {
+  //          impl1 = null;
+  //        }
+  //      }
+  //
+  //      synchronized (GLContextShareSet.class) {
+  //        if (impl1 != null) {
+  //          tracker = impl1.getObjectTracker();
+  //          assert (tracker != null)
+  //            : "registerForObjectTracking was not called properly for the older context";
+  //        }
+  //        if (tracker == null) {
+  //          tracker = new GLObjectTracker();
+  //        }
+  //        // Note that we don't assert that the tracker is non-null for
+  //        // impl2 because the way we use this functionality we actually
+  //        // overwrite the initially-set object tracker in the new context
+  //        impl2.setObjectTracker(tracker);
+  //      }
+  //    }
+  //  }
+  
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  
+
+  private static ShareSet entryFor(GLContext context) {
+    return (ShareSet) shareMap.get(context);
+  }
+
+  private static void addEntry(GLContext context, ShareSet share) {
+    if (shareMap.get(context) == null) {
+      shareMap.put(context, share);
+    }
+  }
+
+  // FIXME: refactor Java SE dependencies
+  //  private static boolean isObjectTrackingEnabled() {
+  //    return ((Java2D.isOGLPipelineActive() && Java2D.isFBOEnabled()) ||
+  //            isObjectTrackingDebuggingEnabled());
+  //  }
+  //
+  //  private static boolean isObjectTrackingDebuggingEnabled() {
+  //    return forceTracking;
+  //  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/GLDrawableFactoryImpl.java b/src/jogl/classes/com/jogamp/opengl/impl/GLDrawableFactoryImpl.java
new file mode 100644
index 000000000..20d0c8072
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/GLDrawableFactoryImpl.java
@@ -0,0 +1,377 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+import java.nio.*;
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.gluegen.runtime.*;
+import com.sun.nativewindow.impl.NWReflection;
+import java.lang.reflect.*;
+
+/** Extends GLDrawableFactory with a few methods for handling
+    typically software-accelerated offscreen rendering (Device
+    Independent Bitmaps on Windows, pixmaps on X11). Direct access to
+    these GLDrawables is not supplied directly to end users, though
+    they may be instantiated by the GLJPanel implementation. */
+public abstract class GLDrawableFactoryImpl extends GLDrawableFactory {
+  protected static final boolean DEBUG = Debug.debug("GLDrawableFactory");
+
+  //---------------------------------------------------------------------------
+  // Dispatching GLDrawable construction in respect to the NativeWindow Capabilities
+  //
+  public GLDrawable createGLDrawable(NativeWindow target) {
+    if (target == null) {
+      throw new IllegalArgumentException("Null target");
+    }
+    AbstractGraphicsConfiguration config = target.getGraphicsConfiguration().getNativeGraphicsConfiguration();
+    GLCapabilities caps = (GLCapabilities) target.getGraphicsConfiguration().getNativeGraphicsConfiguration().getChosenCapabilities();
+    GLDrawable result = null;
+    if(caps.isOnscreen()) {
+        if(caps.isPBuffer()) {
+            throw new IllegalArgumentException("Onscreen target can't be PBuffer: "+caps);
+        }
+        if(DEBUG) {
+            System.out.println("GLDrawableFactoryImpl.createGLDrawable -> OnscreenDrawable: "+target);
+        }
+        result = createOnscreenDrawable(target);
+    } else {
+        if( ! ( target instanceof SurfaceChangeable ) ) {
+            throw new IllegalArgumentException("Passed NativeWindow must implement SurfaceChangeable for offscreen: "+target);
+        }
+        if(caps.isPBuffer() && canCreateGLPbuffer()) {
+            if(DEBUG) {
+                System.out.println("GLDrawableFactoryImpl.createGLDrawable -> PbufferDrawable: "+target);
+            }
+            result = createGLPbufferDrawable(target);
+        }
+        if(null==result) {
+            if(DEBUG) {
+                System.out.println("GLDrawableFactoryImpl.createGLDrawable -> OffScreenDrawable: "+target);
+            }
+            result = createOffscreenDrawable(target);
+        }
+    }
+    if(DEBUG) {
+        System.out.println("GLDrawableFactoryImpl.createGLDrawable: "+result);
+    }
+    return result;
+  }
+
+  //---------------------------------------------------------------------------
+  //
+  // Onscreen GLDrawable construction 
+  //
+
+  protected abstract GLDrawableImpl createOnscreenDrawable(NativeWindow target);
+
+  //---------------------------------------------------------------------------
+  //
+  // PBuffer GLDrawable construction 
+  //
+
+  /** Target must implement SurfaceChangeable */
+  protected abstract GLDrawableImpl createGLPbufferDrawableImpl(NativeWindow target);
+
+  protected GLDrawableImpl createGLPbufferDrawable(NativeWindow target) {
+    if (!canCreateGLPbuffer()) {
+        throw new GLException("Pbuffer support not available with current graphics card");
+    }
+    return createGLPbufferDrawableImpl(target);
+  }
+
+  public GLDrawable createGLPbufferDrawable(GLCapabilities capabilities,
+                                            GLCapabilitiesChooser chooser,
+                                            int width,
+                                            int height) {
+    if(height<=0 || height<=0) {
+        throw new GLException("Width and height of pbuffer must be positive (were (" +
+                        width + ", " + height + "))");
+    }
+    capabilities.setDoubleBuffered(false); // FIXME
+    capabilities.setOnscreen(false);
+    capabilities.setPBuffer(true);
+    return createGLPbufferDrawable( createOffscreenWindow(capabilities, chooser, height, height) );
+  }
+
+  public GLPbuffer createGLPbuffer(GLCapabilities capabilities,
+                                   GLCapabilitiesChooser chooser,
+                                   int width,
+                                   int height,
+                                   GLContext shareWith) {
+    return new GLPbufferImpl( (GLDrawableImpl) createGLPbufferDrawable(capabilities, chooser, height, height),
+                              shareWith);
+  }
+
+
+  //---------------------------------------------------------------------------
+  //
+  // Offscreen GLDrawable construction 
+  //
+
+  protected abstract GLDrawableImpl createOffscreenDrawable(NativeWindow target) ;
+
+  public GLDrawable createOffscreenDrawable(GLCapabilities capabilities,
+                                            GLCapabilitiesChooser chooser,
+                                            int width,
+                                            int height) {
+    if(width<=0 || height<=0) {
+        throw new GLException("Width and height of pbuffer must be positive (were (" +
+                        width + ", " + height + "))");
+    }
+    capabilities.setDoubleBuffered(false); // FIXME
+    capabilities.setOnscreen(false);
+    capabilities.setPBuffer(false);
+    return createOffscreenDrawable( createOffscreenWindow(capabilities, chooser, width, height) );
+  }
+
+  /**
+   * creates an offscreen NativeWindow, which must implement SurfaceChangeable as well,
+   * so the windowing system related implementation is able to set the surface handle.
+   */
+  protected abstract NativeWindow createOffscreenWindow(GLCapabilities capabilities, GLCapabilitiesChooser chooser, 
+                                                        int width, int height);
+
+  protected GLDrawableFactoryImpl() {
+    super();
+  }
+
+  protected void maybeDoSingleThreadedWorkaround(Runnable action) {
+    if (Threading.isSingleThreaded() &&
+        !Threading.isOpenGLThread()) {
+      Threading.invokeOnOpenGLThread(action);
+    } else {
+      action.run();
+    }
+  }
+
+  /**
+   * Returns the sole GLDrawableFactoryImpl instance.
+   *
+   * @param glProfile GLProfile to determine the factory type, ie EGLDrawableFactory,
+   *                or one of the native GLDrawableFactory's, ie X11/GLX, Windows/WGL or MacOSX/CGL.
+   */
+  public static GLDrawableFactoryImpl getFactoryImpl(GLProfile glp) {
+    return (GLDrawableFactoryImpl) getFactory(glp);
+  }
+
+  // Helper function for more lazily loading the GLU library;
+  // apparently can't use System.loadLibrary on UNIX because it uses
+  // RTLD_LOCAL and we need to call dlsym(RTLD_DEFAULT)
+  public abstract void loadGLULibrary();
+
+  //----------------------------------------------------------------------
+  // Support for locking and unlocking the toolkit -- needed only on X11 platforms
+  //
+
+  public void lockToolkit() {
+    NativeWindowFactory.getDefaultFactory().getToolkitLock().lock();
+  }
+
+  public void unlockToolkit() {
+    NativeWindowFactory.getDefaultFactory().getToolkitLock().unlock();
+  }
+
+  //---------------------------------------------------------------------------
+  // 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();
+
+  public abstract GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
+    throws GLException;
+
+  //----------------------------------------------------------------------
+  // Gamma adjustment support
+  // Thanks to the LWJGL team for illustrating how to make these
+  // adjustments on various OSs.
+
+  /*
+   * Portions Copyright (c) 2002-2004 LWJGL Project
+   * All rights reserved.
+   *
+   * Redistribution and use in source and binary forms, with or without
+   * modification, are permitted provided that the following conditions are
+   * met:
+   *
+   * * Redistributions of source code must retain the above copyright
+   *   notice, this list of conditions and the following disclaimer.
+   *
+   * * Redistributions in binary form must reproduce the above copyright
+   *   notice, this list of conditions and the following disclaimer in the
+   *   documentation and/or other materials provided with the distribution.
+   *
+   * * Neither the name of 'LWJGL' nor the names of
+   *   its contributors may be used to endorse or promote products derived
+   *   from this software without specific prior written permission.
+   *
+   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+   */
+
+  /**
+   * Sets the gamma, brightness, and contrast of the current main
+   * display. Returns true if the settings were changed, false if
+   * not. If this method returns true, the display settings will
+   * automatically be reset upon JVM exit (assuming the JVM does not
+   * crash); if the user wishes to change the display settings back to
+   * normal ahead of time, use resetDisplayGamma(). Throws
+   * IllegalArgumentException if any of the parameters were
+   * out-of-bounds.
+   * 
+   * @param gamma The gamma value, typically > 1.0 (default value is
+   *   1.0)
+   * @param brightness The brightness value between -1.0 and 1.0,
+   *   inclusive (default value is 0)
+   * @param contrast The contrast, greater than 0.0 (default value is 1)
+   * @throws IllegalArgumentException if any of the parameters were
+   *   out-of-bounds
+   */
+  public boolean setDisplayGamma(float gamma, float brightness, float contrast) throws IllegalArgumentException {
+    if ((brightness < -1.0f) || (brightness > 1.0f)) {
+      throw new IllegalArgumentException("Brightness must be between -1.0 and 1.0");
+    }
+    if (contrast < 0) {
+      throw new IllegalArgumentException("Contrast must be greater than 0.0");
+    }
+    // FIXME: ensure gamma is > 1.0? Are smaller / negative values legal?
+    int rampLength = getGammaRampLength();
+    if (rampLength == 0) {
+      return false;
+    }
+    float[] gammaRamp = new float[rampLength];
+    for (int i = 0; i < rampLength; i++) {
+      float intensity = (float) i / (float) (rampLength - 1);
+      // apply gamma
+      float rampEntry = (float) java.lang.Math.pow(intensity, gamma);
+      // apply brightness
+      rampEntry += brightness;
+      // apply contrast
+      rampEntry = (rampEntry - 0.5f) * contrast + 0.5f;
+      // Clamp entry to [0, 1]
+      if (rampEntry > 1.0f)
+        rampEntry = 1.0f;
+      else if (rampEntry < 0.0f)
+        rampEntry = 0.0f;
+      gammaRamp[i] = rampEntry;
+    }
+    registerGammaShutdownHook();
+    return setGammaRamp(gammaRamp);
+  }
+
+  public synchronized void resetDisplayGamma() {
+    if (gammaShutdownHook == null) {
+      throw new IllegalArgumentException("Should not call this unless setDisplayGamma called first");
+    }
+    resetGammaRamp(originalGammaRamp);
+    unregisterGammeShutdownHook();
+  }
+
+  //------------------------------------------------------
+  // Gamma-related methods to be implemented by subclasses
+  //
+
+  /** Returns the length of the computed gamma ramp for this OS and
+      hardware. Returns 0 if gamma changes are not supported. */
+  protected int getGammaRampLength() {
+    return 0;
+  }
+
+  /** Sets the gamma ramp for the main screen. Returns false if gamma
+      ramp changes were not supported. */
+  protected boolean setGammaRamp(float[] ramp) {
+    return false;
+  }
+
+  /** Gets the current gamma ramp. This is basically an opaque value
+      used only on some platforms to reset the gamma ramp to its
+      original settings. */
+  protected Buffer getGammaRamp() {
+    return null;
+  }
+
+  /** Resets the gamma ramp, potentially using the specified Buffer as
+      data to restore the original values. */
+  protected void resetGammaRamp(Buffer originalGammaRamp) {
+  }
+
+  // Shutdown hook mechanism for resetting gamma
+  private boolean gammaShutdownHookRegistered;
+  private Thread  gammaShutdownHook;
+  private Buffer  originalGammaRamp;
+  private synchronized void registerGammaShutdownHook() {
+    if (gammaShutdownHookRegistered)
+      return;
+    if (gammaShutdownHook == null) {
+      gammaShutdownHook = new Thread(new Runnable() {
+          public void run() {
+            synchronized (GLDrawableFactoryImpl.this) {
+              resetGammaRamp(originalGammaRamp);
+            }
+          }
+        });
+      originalGammaRamp = getGammaRamp();
+    }
+    Runtime.getRuntime().addShutdownHook(gammaShutdownHook);
+    gammaShutdownHookRegistered = true;
+  }
+
+  private synchronized void unregisterGammeShutdownHook() {
+    if (!gammaShutdownHookRegistered)
+      return;
+    if (gammaShutdownHook == null) {
+      throw new InternalError("Error in gamma shutdown hook logic");
+    }
+    Runtime.getRuntime().removeShutdownHook(gammaShutdownHook);
+    gammaShutdownHookRegistered = false;
+    // Leave the original gamma ramp data alone
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/GLDrawableHelper.java b/src/jogl/classes/com/jogamp/opengl/impl/GLDrawableHelper.java
new file mode 100644
index 000000000..7a4e84081
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/GLDrawableHelper.java
@@ -0,0 +1,180 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+import java.util.*;
+import javax.media.opengl.*;
+
+/** Encapsulates the implementation of most of the GLAutoDrawable's
+    methods to be able to share it between GLCanvas and GLJPanel. */
+
+public class GLDrawableHelper {
+  private volatile List listeners = new ArrayList();
+  private static final boolean DEBUG = Debug.debug("GLDrawableHelper");
+  private static final boolean VERBOSE = Debug.verbose();
+  private static final boolean NVIDIA_CRASH_WORKAROUND = Debug.isPropertyDefined("jogl.nvidia.crash.workaround", true);
+  private boolean autoSwapBufferMode = true;
+
+  public GLDrawableHelper() {
+  }
+
+  public synchronized String toString() {
+    StringBuffer sb = new StringBuffer();
+    sb.append("GLEventListeners num "+listeners.size()+" [");
+    for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
+      sb.append(iter.next()+", ");
+    }
+    sb.append("]");
+    return sb.toString();
+  }
+
+  public synchronized void addGLEventListener(GLEventListener listener) {
+    List newListeners = (List) ((ArrayList) listeners).clone();
+    newListeners.add(listener);
+    listeners = newListeners;
+  }
+  
+  public synchronized void removeGLEventListener(GLEventListener listener) {
+    List newListeners = (List) ((ArrayList) listeners).clone();
+    newListeners.remove(listener);
+    listeners = newListeners;
+  }
+
+  public synchronized void dispose(GLAutoDrawable drawable) {
+    for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
+      ((GLEventListener) iter.next()).dispose(drawable);
+    }
+  }
+
+  public void init(GLAutoDrawable drawable) {
+    for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
+      ((GLEventListener) iter.next()).init(drawable);
+    }
+  }
+
+  public void display(GLAutoDrawable drawable) {
+    for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
+      ((GLEventListener) iter.next()).display(drawable);
+    }
+  }
+
+  public void reshape(GLAutoDrawable drawable,
+                      int x, int y, int width, int height) {
+    for (Iterator iter = listeners.iterator(); iter.hasNext(); ) {
+      ((GLEventListener) iter.next()).reshape(drawable, x, y, width, height);
+    }
+  }
+
+  public void setAutoSwapBufferMode(boolean onOrOff) {
+    autoSwapBufferMode = onOrOff;
+  }
+
+  public boolean getAutoSwapBufferMode() {
+    return autoSwapBufferMode;
+  }
+
+  private static final ThreadLocal perThreadInitAction = new ThreadLocal();
+  /** Principal helper method which runs a Runnable with the context
+      made current. This could have been made part of GLContext, but a
+      desired goal is to be able to implement the GLCanvas in terms of
+      the GLContext's public APIs, and putting it into a separate
+      class helps ensure that we don't inadvertently use private
+      methods of the GLContext or its implementing classes. */
+  public void invokeGL(GLDrawable drawable,
+                       GLContext context,
+                       Runnable  runnable,
+                       Runnable  initAction) {
+    if(null==context) {
+        if (DEBUG) {
+            Exception e = new GLException(Thread.currentThread().getName()+" GLDrawableHelper " + this + ".invokeGL(): NULL GLContext");
+            e.printStackTrace();
+        }
+        return;
+    }
+    // Support for recursive makeCurrent() calls as well as calling
+    // other drawables' display() methods from within another one's
+    GLContext lastContext    = GLContext.getCurrent();
+    Runnable  lastInitAction = (Runnable) perThreadInitAction.get();
+    if (lastContext != null) {
+      lastContext.release();
+    }
+  
+    int res = 0;
+    try {
+      res = context.makeCurrent();
+      if (res != GLContext.CONTEXT_NOT_CURRENT) {
+        if(null!=initAction) {
+            perThreadInitAction.set(initAction);
+            if (res == GLContext.CONTEXT_CURRENT_NEW) {
+              if (DEBUG) {
+                System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running initAction");
+              }
+              initAction.run();
+            }
+        }
+        if(null!=runnable) {
+            if (DEBUG && VERBOSE) {
+              System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running runnable");
+            }
+            runnable.run();
+            if (autoSwapBufferMode) {
+              if (drawable != null) {
+                drawable.swapBuffers();
+              }
+            }
+        }
+      }
+    } finally {
+      try {
+        if (res != GLContext.CONTEXT_NOT_CURRENT) {
+          context.release();
+        }
+      } catch (Exception e) {
+      }
+      if (lastContext != null) {
+        int res2 = lastContext.makeCurrent();
+        if (res2 == GLContext.CONTEXT_CURRENT_NEW) {
+          lastInitAction.run();
+        }
+      }
+    }
+  }
+
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/GLDrawableImpl.java b/src/jogl/classes/com/jogamp/opengl/impl/GLDrawableImpl.java
new file mode 100644
index 000000000..20bf20c20
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/GLDrawableImpl.java
@@ -0,0 +1,179 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.gluegen.runtime.DynamicLookupHelper;
+
+public abstract class GLDrawableImpl implements GLDrawable {
+  protected static final boolean DEBUG = Debug.debug("GLDrawable");
+
+  protected GLDrawableImpl(GLDrawableFactory factory,
+                           NativeWindow comp,
+                           boolean realized) {
+      this.factory = factory;
+      this.component = comp;
+      this.realized = realized;
+      this.requestedCapabilities = (GLCapabilities)component.getGraphicsConfiguration().getNativeGraphicsConfiguration().getRequestedCapabilities(); // a copy ..
+  }
+
+  /** 
+   * Returns the DynamicLookupHelper
+   */
+  public abstract DynamicLookupHelper getDynamicLookupHelper();
+
+  public GLDrawableFactoryImpl getFactoryImpl() {
+    return (GLDrawableFactoryImpl) getFactory();
+  }
+
+  /** For offscreen GLDrawables (pbuffers and "pixmap" drawables),
+      indicates that native resources should be reclaimed. */
+  public void destroy() {
+    throw new GLException("Should not call this (should only be called for offscreen GLDrawables)");
+  }
+
+  public void swapBuffers() throws GLException {
+    GLCapabilities caps = (GLCapabilities)component.getGraphicsConfiguration().getNativeGraphicsConfiguration().getChosenCapabilities();
+    if ( caps.getDoubleBuffered() ) {
+        if(!component.surfaceSwap()) {
+            swapBuffersImpl();
+        }
+    } else {
+        GLContext ctx = GLContext.getCurrent();
+        if(null!=ctx && ctx.getGLDrawable()==this) { 
+            ctx.getGL().glFinish();
+        }
+    }
+    component.surfaceUpdated(this, component, System.currentTimeMillis());
+  }
+
+  protected abstract void swapBuffersImpl();
+
+  public static String toHexString(long hex) {
+    return GLContextImpl.toHexString(hex);
+  }
+
+  public GLProfile getGLProfile() {
+    return requestedCapabilities.getGLProfile();
+  }
+
+  public GLCapabilities getChosenGLCapabilities() {
+    return  (GLCapabilities)component.getGraphicsConfiguration().getNativeGraphicsConfiguration().getChosenCapabilities(); // a copy
+  }
+
+  public GLCapabilities getRequestedGLCapabilities() {
+    return requestedCapabilities;
+  }
+
+  public NativeWindow getNativeWindow() {
+    return component;
+  }
+
+  public GLDrawableFactory getFactory() {
+    return factory;
+  }
+
+  public void setRealized(boolean realized) {
+    if ( this.realized != realized ) {
+        if(DEBUG) {
+            System.err.println("setRealized: "+getClass().getName()+" "+this.realized+" -> "+realized);
+        }
+        this.realized = realized;
+        setRealizedImpl();
+    } else if(DEBUG) {
+        System.err.println("setRealized: "+getClass().getName()+" "+this.realized+" == "+realized);
+    }
+  }
+  protected abstract void setRealizedImpl();
+
+  public boolean getRealized() {
+    return realized;
+  }
+
+  public int getWidth() {
+    return component.getWidth();
+  }
+
+  /** Returns the current height of this GLDrawable. */
+  public int getHeight() {
+    return component.getHeight();
+  }
+
+  public int lockSurface() throws GLException {
+    if (!realized) {
+      return NativeWindow.LOCK_SURFACE_NOT_READY;
+    }
+    return component.lockSurface();
+  }
+
+  public void unlockSurface() {
+    component.unlockSurface();
+  }
+
+  public boolean isSurfaceLocked() {
+    return component.isSurfaceLocked();
+  }
+
+  public String toString() {
+    return getClass().getName()+"[realized "+getRealized()+
+                ",\n\tfactory   "+getFactory()+
+                ",\n\twindow    "+getNativeWindow()+
+                ",\n\trequested "+getRequestedGLCapabilities()+
+                ",\n\tchosen    "+getChosenGLCapabilities()+"]";
+  }
+
+  protected GLDrawableFactory factory;
+  protected NativeWindow component;
+  protected GLCapabilities requestedCapabilities;
+
+  // Indicates whether the component (if an onscreen context) has been
+  // realized. Plausibly, before the component is realized the JAWT
+  // should return an error or NULL object from some of its
+  // operations; this appears to be the case on Win32 but is not true
+  // at least with Sun's current X11 implementation (1.4.x), which
+  // crashes with no other error reported if the DrawingSurfaceInfo is
+  // fetched from a locked DrawingSurface during the validation as a
+  // result of calling show() on the main thread. To work around this
+  // we prevent any JAWT or OpenGL operations from being done until
+  // addNotify() is called on the component.
+  protected boolean realized;
+
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/GLPbufferImpl.java b/src/jogl/classes/com/jogamp/opengl/impl/GLPbufferImpl.java
new file mode 100644
index 000000000..dd8d980a6
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/GLPbufferImpl.java
@@ -0,0 +1,320 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+/**
+import java.awt.Dimension;
+import java.awt.EventQueue;
+import java.awt.event.*;
+import java.beans.PropertyChangeListener;
+ */
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+
+/** Platform-independent class exposing pbuffer functionality to
+    applications. This class is not exposed in the public API as it
+    would probably add no value; however it implements the GLDrawable
+    interface so can be interacted with via its display() method. */
+
+public class GLPbufferImpl implements GLPbuffer {
+  private GLDrawableImpl pbufferDrawable;
+  private GLContextImpl context;
+  private GLDrawableHelper drawableHelper = new GLDrawableHelper();
+  private int floatMode;
+
+  public GLPbufferImpl(GLDrawableImpl pbufferDrawable,
+                       GLContext parentContext) {
+    GLCapabilities caps = (GLCapabilities) 
+         pbufferDrawable.getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration().getChosenCapabilities();
+    if(caps.isOnscreen()) {
+        if(caps.isPBuffer()) {
+            throw new IllegalArgumentException("Error: Given drawable is Onscreen and Pbuffer: "+pbufferDrawable);
+        }
+        throw new IllegalArgumentException("Error: Given drawable is Onscreen: "+pbufferDrawable);
+    } else {
+        if(!caps.isPBuffer()) {
+            throw new IllegalArgumentException("Error: Given drawable is not Pbuffer: "+pbufferDrawable);
+        }
+    }
+    this.pbufferDrawable = pbufferDrawable;
+    context = (GLContextImpl) pbufferDrawable.createContext(parentContext);
+    context.setSynchronized(true);
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    return pbufferDrawable.createContext(shareWith);
+  }
+
+  public void setRealized(boolean realized) {
+  }
+
+  public void setSize(int width, int height) {
+    // FIXME
+    throw new GLException("Not yet implemented");
+  }
+
+  public NativeWindow getNativeWindow() {
+      return pbufferDrawable.getNativeWindow();
+  }
+
+  public GLDrawableFactory getFactory() {
+      return pbufferDrawable.getFactory();
+  }
+
+  public int getWidth() {
+    return pbufferDrawable.getWidth();
+  }
+
+  public int getHeight() {
+    return pbufferDrawable.getHeight();
+  }
+
+  public void display() {
+    maybeDoSingleThreadedWorkaround(displayOnEventDispatchThreadAction,
+                                    displayAction,
+                                    false);
+  }
+
+  public void repaint() {
+    display();
+  }
+
+  public void addGLEventListener(GLEventListener listener) {
+    drawableHelper.addGLEventListener(listener);
+  }
+
+  public void removeGLEventListener(GLEventListener listener) {
+    drawableHelper.removeGLEventListener(listener);
+  }
+
+  public void setContext(GLContext ctx) {
+    context=(GLContextImpl)ctx;
+  }
+
+  public GLContext getContext() {
+    return context;
+  }
+
+  public GLDrawable getDrawable() {
+    return pbufferDrawable;
+  }
+
+  public GL getGL() {
+    return getContext().getGL();
+  }
+
+  public GL setGL(GL gl) {
+    return getContext().setGL(gl);
+  }
+
+  public void setAutoSwapBufferMode(boolean onOrOff) {
+    drawableHelper.setAutoSwapBufferMode(onOrOff);
+  }
+
+  public boolean getAutoSwapBufferMode() {
+    return drawableHelper.getAutoSwapBufferMode();
+  }
+
+  public void swapBuffers() {
+    maybeDoSingleThreadedWorkaround(swapBuffersOnEventDispatchThreadAction, swapBuffersAction, false);
+  }
+
+  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();
+  }
+
+  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();
+  }
+
+  public GLCapabilities getChosenGLCapabilities() {
+    if (pbufferDrawable == null)
+      return null;
+
+    return pbufferDrawable.getChosenGLCapabilities();
+  }
+
+  public GLCapabilities getRequestedGLCapabilities() {
+    if (pbufferDrawable == null)
+      return null;
+
+    return pbufferDrawable.getRequestedGLCapabilities();
+  }
+
+  public GLProfile getGLProfile() {
+    if (pbufferDrawable == null)
+      return null;
+
+    return pbufferDrawable.getGLProfile();
+  }
+
+  private boolean surfaceLocked = false;
+
+  public int lockSurface() throws GLException {
+    surfaceLocked=true;
+    return NativeWindow.LOCK_SUCCESS;
+  }
+
+  public void unlockSurface() {
+    surfaceLocked=false;
+  }
+
+  public boolean isSurfaceLocked() {
+    return surfaceLocked;
+  }
+
+  //----------------------------------------------------------------------
+  // No-ops for ComponentEvents
+  //
+
+  /*
+  public void addComponentListener(ComponentListener l) {}
+  public void removeComponentListener(ComponentListener l) {}
+  public void addFocusListener(FocusListener l) {}
+  public void removeFocusListener(FocusListener l) {}
+  public void addHierarchyBoundsListener(HierarchyBoundsListener l) {}
+  public void removeHierarchyBoundsListener(HierarchyBoundsListener l) {}
+  public void addHierarchyListener(HierarchyListener l) {}
+  public void removeHierarchyListener(HierarchyListener l) {}
+  public void addInputMethodListener(InputMethodListener l) {}
+  public void removeInputMethodListener(InputMethodListener l) {}
+  public void addKeyListener(KeyListener l) {}
+  public void removeKeyListener(KeyListener l) {}
+  public void addMouseListener(MouseListener l) {}
+  public void removeMouseListener(MouseListener l) {}
+  public void addMouseMotionListener(MouseMotionListener l) {}
+  public void removeMouseMotionListener(MouseMotionListener l) {}
+  public void addMouseWheelListener(MouseWheelListener l) {}
+  public void removeMouseWheelListener(MouseWheelListener l) {}
+  public void addPropertyChangeListener(PropertyChangeListener listener) {}
+  public void removePropertyChangeListener(PropertyChangeListener listener) {}
+  public void addPropertyChangeListener(String propertyName,
+                                        PropertyChangeListener listener) {}
+  public void removePropertyChangeListener(String propertyName,
+                                           PropertyChangeListener listener) {}
+                                           */
+
+  public void destroy() {
+    // FIXME: not calling event listeners .. see GLAutoDrawable spec
+    if (Threading.isSingleThreaded() &&
+        !Threading.isOpenGLThread()) {
+      Threading.invokeOnOpenGLThread(destroyAction);
+    } else {
+      destroyAction.run();
+    }
+  }
+
+  public int getFloatingPointMode() {
+    if (floatMode == 0) {
+      throw new GLException("Pbuffer not initialized, or floating-point support not requested");
+    }
+    return floatMode;
+  }
+
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  //
+
+  private void maybeDoSingleThreadedWorkaround(Runnable eventDispatchThreadAction,
+                                               Runnable invokeGLAction,
+                                               boolean  isReshape) {
+    if (Threading.isSingleThreaded() &&
+        !Threading.isOpenGLThread()) {
+      Threading.invokeOnOpenGLThread(eventDispatchThreadAction);
+    } else {
+      drawableHelper.invokeGL(pbufferDrawable, context, invokeGLAction, initAction);
+    }
+  }
+
+  class InitAction implements Runnable {
+    public void run() {
+      floatMode = context.getFloatingPointMode();
+      drawableHelper.init(GLPbufferImpl.this);
+    }
+  }
+  private InitAction initAction = new InitAction();
+  
+  class DisplayAction implements Runnable {
+    public void run() {
+      drawableHelper.display(GLPbufferImpl.this);
+    }
+  }
+  private DisplayAction displayAction = new DisplayAction();
+
+  class SwapBuffersAction implements Runnable {
+    public void run() {
+      pbufferDrawable.swapBuffers();
+    }
+  }
+  private SwapBuffersAction swapBuffersAction = new SwapBuffersAction();
+
+  // Workaround for ATI driver bugs related to multithreading issues
+  // like simultaneous rendering via Animators to canvases that are
+  // being resized on the AWT event dispatch thread
+  class DisplayOnEventDispatchThreadAction implements Runnable {
+    public void run() {
+      drawableHelper.invokeGL(pbufferDrawable, context, displayAction, initAction);
+    }
+  }
+  private DisplayOnEventDispatchThreadAction displayOnEventDispatchThreadAction =
+    new DisplayOnEventDispatchThreadAction();
+  class SwapBuffersOnEventDispatchThreadAction implements Runnable {
+    public void run() {
+      drawableHelper.invokeGL(pbufferDrawable, context, swapBuffersAction, initAction);
+    }
+  }
+  private SwapBuffersOnEventDispatchThreadAction swapBuffersOnEventDispatchThreadAction =
+    new SwapBuffersOnEventDispatchThreadAction();
+
+  class DestroyAction implements Runnable {
+    public void run() {
+      if (null != context) {
+          context.destroy();
+      }
+      pbufferDrawable.destroy();
+    }
+  }
+  private DestroyAction destroyAction = new DestroyAction();
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/GLStateTracker.java b/src/jogl/classes/com/jogamp/opengl/impl/GLStateTracker.java
new file mode 100755
index 000000000..744e7b924
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/GLStateTracker.java
@@ -0,0 +1,238 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+import java.util.*;
+import javax.media.opengl.*;
+
+/**
+ * Tracks as closely as possible OpenGL states.
+ * GLStateTracker objects are allocated on a per-OpenGL-context basis.
+ * <p>
+ * Currently supported states: PixelStorei
+ */
+
+public class GLStateTracker {
+  private static final boolean DEBUG = Debug.debug("GLStateTracker");
+
+  private volatile boolean enabled = true;
+
+  private Map/*<Integer,Integer>*/ pixelStateMap = new HashMap/*<Integer,Integer>*/();
+
+  static class SavedState {
+    SavedState() {
+        this.pixelStateMap = null;
+    }
+    void putPixelStateMap(Map pixelStateMap) {
+        this.pixelStateMap = new HashMap();
+        this.pixelStateMap.putAll(pixelStateMap);
+    }
+    Map getPixelStateMap() { return pixelStateMap; }
+
+    private Map pixelStateMap;
+    // private Map otherStateMap;
+  }
+  private List/*<SavedState>*/ stack = new ArrayList();
+
+  public GLStateTracker() {
+    resetStates();
+  }
+
+  public void clearStates(boolean enable) {
+    enabled = enable;    
+    pixelStateMap.clear();
+  }
+
+  public void setEnabled(boolean on) {
+    enabled = on;    
+  }
+
+  public boolean isEnabled() {
+    return enabled;
+  }
+
+  public boolean getInt(int pname, int[] params, int params_offset) {
+    if(enabled) {
+        Integer key = boxKey(pname);
+        if(null!=key) {
+            Integer value = (Integer) pixelStateMap.get(key);
+            if(null!=value) {
+                params[params_offset] = value.intValue();
+            } else {
+                GLException re = new GLException("Key (0x"+Integer.toHexString(key.intValue())+") is not mapped");
+                throw re;
+            }
+            return true;
+        }
+    }
+    return false;
+  }
+
+  public boolean getInt(int pname, java.nio.IntBuffer params, int dummy) {
+    if(enabled) {
+        Integer key = boxKey(pname);
+        if(null!=key) {
+            Integer value = (Integer) pixelStateMap.get(key);
+            if(null!=value) {
+                params.put(params.position(), value.intValue());
+            } else {
+                GLException re = new GLException("Key (0x"+Integer.toHexString(key.intValue())+") is not mapped");
+                throw re;
+            }
+            return true;
+        }
+    }
+    return false;
+  }
+
+  public void setInt(int pname, int param) {
+    if(enabled) {
+        Integer key = boxKey(pname);
+        if(null!=key) {
+            pixelStateMap.put(key, boxInt(param));
+        }
+    }
+  }
+
+  public void pushAttrib(int flags) {
+    if(enabled) {
+        SavedState state = new SavedState();
+        if( 0 != (flags&GL2.GL_CLIENT_PIXEL_STORE_BIT) ) {
+            state.putPixelStateMap(pixelStateMap);
+        }
+        stack.add(0, state);
+    }
+  }
+
+  public void popAttrib() {
+    if(enabled) {
+        if(stack.size()==0) {
+            throw new GLException("stack contains no elements");
+        }
+        SavedState state = (SavedState) stack.remove(0);
+        if(null==state) {
+            throw new GLException("null stack element (remaining stack size "+stack.size()+")");
+        }
+
+        Map/*<Integer,Integer>*/ pixelStateMapNew = new HashMap/*<Integer,Integer>*/();
+        if ( null != state.getPixelStateMap() ) {
+            pixelStateMapNew.putAll(state.getPixelStateMap());
+        }
+        pixelStateMap = pixelStateMapNew;
+    }
+  }
+
+  private static final Integer GL_PACK_SWAP_BYTES   = new Integer(GL2GL3.GL_PACK_SWAP_BYTES);
+  private static final Integer GL_PACK_LSB_FIRST    = new Integer(GL2GL3.GL_PACK_LSB_FIRST);
+  private static final Integer GL_PACK_ROW_LENGTH   = new Integer(GL2GL3.GL_PACK_ROW_LENGTH);
+  private static final Integer GL_PACK_SKIP_ROWS    = new Integer(GL2GL3.GL_PACK_SKIP_ROWS);
+  private static final Integer GL_PACK_SKIP_PIXELS  = new Integer(GL2GL3.GL_PACK_SKIP_PIXELS);
+  private static final Integer GL_PACK_ALIGNMENT    = new Integer(GL.GL_PACK_ALIGNMENT);
+  private static final Integer GL_PACK_IMAGE_HEIGHT = new Integer(GL2GL3.GL_PACK_IMAGE_HEIGHT);
+  private static final Integer GL_PACK_SKIP_IMAGES  = new Integer(GL2GL3.GL_PACK_SKIP_IMAGES);
+
+  private static final Integer GL_UNPACK_SWAP_BYTES   = new Integer(GL2GL3.GL_UNPACK_SWAP_BYTES);
+  private static final Integer GL_UNPACK_LSB_FIRST    = new Integer(GL2GL3.GL_UNPACK_LSB_FIRST);
+  private static final Integer GL_UNPACK_ROW_LENGTH   = new Integer(GL2GL3.GL_UNPACK_ROW_LENGTH);
+  private static final Integer GL_UNPACK_SKIP_ROWS    = new Integer(GL2GL3.GL_UNPACK_SKIP_ROWS);
+  private static final Integer GL_UNPACK_SKIP_PIXELS  = new Integer(GL2GL3.GL_UNPACK_SKIP_PIXELS);
+  private static final Integer GL_UNPACK_ALIGNMENT    = new Integer(GL.GL_UNPACK_ALIGNMENT);
+  private static final Integer GL_UNPACK_IMAGE_HEIGHT = new Integer(GL2GL3.GL_UNPACK_IMAGE_HEIGHT);
+  private static final Integer GL_UNPACK_SKIP_IMAGES  = new Integer(GL2GL3.GL_UNPACK_SKIP_IMAGES);
+
+  private static final Integer zero                   = new Integer(0);
+  private static final Integer one                    = new Integer(1);
+
+  private static Integer boxKey(int key) {
+    switch (key) {
+      case 0:                          return zero;
+      case GL2GL3.GL_PACK_SWAP_BYTES:     return GL_PACK_SWAP_BYTES;
+      case GL2GL3.GL_PACK_LSB_FIRST:      return GL_PACK_LSB_FIRST;
+      case GL2GL3.GL_PACK_ROW_LENGTH:     return GL_PACK_ROW_LENGTH;
+      case GL2GL3.GL_PACK_SKIP_ROWS:      return GL_PACK_SKIP_ROWS;
+      case GL2GL3.GL_PACK_SKIP_PIXELS:    return GL_PACK_SKIP_PIXELS;
+      case GL.GL_PACK_ALIGNMENT:          return GL_PACK_ALIGNMENT;
+      case GL2GL3.GL_PACK_IMAGE_HEIGHT:   return GL_PACK_IMAGE_HEIGHT;
+      case GL2GL3.GL_PACK_SKIP_IMAGES:    return GL_PACK_SKIP_IMAGES;
+
+      case GL2GL3.GL_UNPACK_SWAP_BYTES:   return GL_UNPACK_SWAP_BYTES;
+      case GL2GL3.GL_UNPACK_LSB_FIRST:    return GL_UNPACK_LSB_FIRST;
+      case GL2GL3.GL_UNPACK_ROW_LENGTH:   return GL_UNPACK_ROW_LENGTH;
+      case GL2GL3.GL_UNPACK_SKIP_ROWS:    return GL_UNPACK_SKIP_ROWS;
+      case GL2GL3.GL_UNPACK_SKIP_PIXELS:  return GL_UNPACK_SKIP_PIXELS;
+      case GL.GL_UNPACK_ALIGNMENT:        return GL_UNPACK_ALIGNMENT;
+      case GL2GL3.GL_UNPACK_IMAGE_HEIGHT: return GL_UNPACK_IMAGE_HEIGHT;
+      case GL2GL3.GL_UNPACK_SKIP_IMAGES:  return GL_UNPACK_SKIP_IMAGES;
+
+      default: return null;
+    }
+  }
+
+  public void resetStates() {
+    pixelStateMap.clear();
+
+    pixelStateMap.put(GL_PACK_SWAP_BYTES,   zero /* GL_FALSE */);
+    pixelStateMap.put(GL_PACK_LSB_FIRST,    zero /* GL_FALSE */);
+    pixelStateMap.put(GL_PACK_ROW_LENGTH,   zero);
+    pixelStateMap.put(GL_PACK_SKIP_ROWS,    zero);
+    pixelStateMap.put(GL_PACK_SKIP_PIXELS,  zero);
+    pixelStateMap.put(GL_PACK_ALIGNMENT,    new Integer(4));
+    pixelStateMap.put(GL_PACK_IMAGE_HEIGHT, zero);
+    pixelStateMap.put(GL_PACK_SKIP_IMAGES,  zero);
+
+    pixelStateMap.put(GL_UNPACK_SWAP_BYTES,   zero /* GL_FALSE */);
+    pixelStateMap.put(GL_UNPACK_LSB_FIRST,    zero /* GL_FALSE */);
+    pixelStateMap.put(GL_UNPACK_ROW_LENGTH,   zero);
+    pixelStateMap.put(GL_UNPACK_SKIP_ROWS,    zero);
+    pixelStateMap.put(GL_UNPACK_SKIP_PIXELS,  zero);
+    pixelStateMap.put(GL_UNPACK_ALIGNMENT,    new Integer(4));
+    pixelStateMap.put(GL_UNPACK_IMAGE_HEIGHT, zero);
+    pixelStateMap.put(GL_UNPACK_SKIP_IMAGES,  zero);
+  }
+
+  private static Integer boxInt(int value) {
+    switch (value) {
+      case 0:           return zero;
+      case 1:           return one;
+
+      default: return new Integer(value);
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/GLWorkerThread.java b/src/jogl/classes/com/jogamp/opengl/impl/GLWorkerThread.java
new file mode 100755
index 000000000..768eea3f7
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/GLWorkerThread.java
@@ -0,0 +1,275 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+import java.lang.reflect.InvocationTargetException;
+import java.security.*;
+import java.util.*;
+import javax.media.opengl.*;
+
+/** Singleton thread upon which all OpenGL work is performed by
+    default. Unfortunately many vendors' OpenGL drivers are not really
+    thread-safe and stability is much improved by performing OpenGL
+    work on at most one thread. This is the default behavior of the
+    GLAutoDrawable implementations according to the {@link
+    javax.media.opengl.Threading Threading} class. The GLWorkerThread
+    replaces the original AWT event queue thread-based mechanism for
+    two reasons: first, more than one AWT event queue thread may be
+    spawned, for example if a dialog is being shown; second, it avoids
+    blocking the AWT event queue thread during OpenGL rendering. */
+
+public class GLWorkerThread {
+  private static volatile boolean started;
+  private static volatile Thread thread;
+  private static Object lock;
+  private static volatile boolean shouldTerminate;
+  private static volatile Throwable exception;
+
+  // The Runnable to execute immediately on the worker thread
+  private static volatile Runnable work;
+  // Queue of Runnables to be asynchronously invoked
+  private static List queue = new LinkedList();
+  
+  /** Should only be called by Threading class if creation of the
+      GLWorkerThread was requested via the opengl.1thread system
+      property. */
+  public static void start() {
+    if (!started) {
+      synchronized (GLWorkerThread.class) {
+        if (!started) {
+          lock = new Object();
+          thread = new Thread(new WorkerRunnable(),
+                              "JOGL GLWorkerThread");
+          thread.setDaemon(true);
+          started = true;
+          synchronized (lock) {
+            thread.start();
+            try {
+              lock.wait();
+            } catch (InterruptedException e) {
+            }
+          }
+
+          /*
+
+          // Note: it appears that there is a bug in NVidia's current
+          // drivers where if a context was ever made current on a
+          // given thread and that thread has exited before program
+          // exit, a crash occurs in the drivers. Releasing the
+          // context from the given thread does not work around the
+          // problem.
+          //
+          // For the time being, we're going to work around this
+          // problem by not terminating the GLWorkerThread. In theory,
+          // shutting down the GLWorkerThread cleanly could be a good
+          // general solution to the problem of needing to
+          // cooperatively terminate all Animators at program exit.
+          //
+          // It appears that this doesn't even work around all of the
+          // kinds of crashes. Causing the context to be unilaterally
+          // released from the GLWorkerThread after each invocation
+          // seems to work around all of the kinds of crashes seen.
+          //
+          // These appear to be similar to the kinds of crashes seen
+          // when the Java2D/OpenGL pipeline terminates, and those are
+          // a known issue being fixed, so presumably these will be
+          // fixed in NVidia's next driver set.
+
+          // Install shutdown hook to terminate daemon thread more or
+          // less cooperatively
+          AccessController.doPrivileged(new PrivilegedAction() {
+              public Object run() {
+                Runtime.getRuntime().addShutdownHook(new Thread() {
+                    public void run() {
+                      Object lockTemp = lock;
+                      if (lockTemp == null) {
+                        // Already terminating (?)
+                        return;
+                      }
+                      synchronized (lockTemp) {
+                        shouldTerminate = true;
+                        lockTemp.notifyAll();
+                        try {
+                          lockTemp.wait(500);
+                        } catch (InterruptedException e) {
+                        }
+                      }
+                    }
+                  });
+                return null;
+              }
+            });
+
+          */
+
+        } else {
+          throw new RuntimeException("Should not start GLWorkerThread twice");
+        }
+      }
+    }
+  }
+
+  public static void invokeAndWait(Runnable runnable)
+    throws InvocationTargetException, InterruptedException {
+    if (!started) {
+      throw new RuntimeException("May not invokeAndWait on worker thread without starting it first");
+    }
+
+    Object lockTemp = lock;
+    if (lockTemp == null) {
+      return; // Terminating
+    }
+
+    synchronized (lockTemp) {
+      if (thread == null) {
+        // Terminating
+        return;
+      }
+
+      work = runnable;
+      lockTemp.notifyAll();
+      lockTemp.wait();
+      if (exception != null) {
+        Throwable localException = exception;
+        exception = null;
+        throw new InvocationTargetException(localException);
+      }
+    }
+  }
+
+  public static void invokeLater(Runnable runnable) {
+    if (!started) {
+      throw new RuntimeException("May not invokeLater on worker thread without starting it first");
+    }
+
+    Object lockTemp = lock;
+    if (lockTemp == null) {
+      return; // Terminating
+    }
+
+    synchronized (lockTemp) {
+      if (thread == null) {
+        // Terminating
+        return;
+      }
+
+      queue.add(runnable);
+      lockTemp.notifyAll();
+    }
+  }
+
+  /** Indicates whether the OpenGL worker thread was started, i.e.,
+      whether it is currently in use. */
+  public static boolean isStarted() {
+    return started;
+  }
+
+  /** Indicates whether the current thread is the OpenGL worker
+      thread. */
+  public static boolean isWorkerThread() {
+    return (Thread.currentThread() == thread);
+  }
+
+  static class WorkerRunnable implements Runnable {
+    public void run() {
+      // Notify starting thread that we're ready
+      synchronized (lock) {
+        lock.notifyAll();
+      }
+
+      while (!shouldTerminate) {
+        synchronized (lock) {
+          while (!shouldTerminate &&
+                 (work == null) &&
+                 queue.isEmpty()) {
+            try {
+              // Avoid race conditions with wanting to release contexts on this thread
+              lock.wait(1000);
+            } catch (InterruptedException e) {
+            }
+
+            if (GLContext.getCurrent() != null) {
+              // Test later to see whether we need to release this context
+              break;
+            }
+          }
+          
+          if (shouldTerminate) {
+            lock.notifyAll();
+            thread = null;
+            lock = null;
+            return;
+          }
+
+          if (work != null) {
+            try {
+              work.run();
+            } catch (Throwable t) {
+              exception = t;
+            } finally {
+              work = null;
+              lock.notifyAll();
+            }
+          }
+
+          while (!queue.isEmpty()) {
+            try {
+              Runnable curAsync = (Runnable) queue.remove(0);
+              curAsync.run();
+            } catch (Throwable t) {
+              System.out.println("Exception occurred on JOGL OpenGL worker thread:");
+              t.printStackTrace();
+            }
+          }
+
+          // See about releasing current context
+          GLContext curContext = GLContext.getCurrent();
+          if (curContext != null &&
+              (curContext instanceof GLContextImpl)) {
+            GLContextImpl impl = (GLContextImpl) curContext;
+            if (impl.hasWaiters()) {
+              impl.release();
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/InternalBufferUtil.java.javame_cdc_fp b/src/jogl/classes/com/jogamp/opengl/impl/InternalBufferUtil.java.javame_cdc_fp
new file mode 100644
index 000000000..4a0eaa22b
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/InternalBufferUtil.java.javame_cdc_fp
@@ -0,0 +1,189 @@
+/*
+ * Copyright (c) 2009 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.
+ * 
+ */
+
+package com.jogamp.opengl.impl;
+
+import java.lang.reflect.*;
+import java.nio.*;
+
+/** Internal copy of selected routines from BufferUtil to avoid
+    outward dependencies on com.jogamp.opengl.util package. */
+public class InternalBufferUtil {
+    public static final int SIZEOF_BYTE = 1;
+    public static final int SIZEOF_SHORT = 2;
+    public static final int SIZEOF_INT = 4;
+    public static final int SIZEOF_FLOAT = 4;
+
+    //----------------------------------------------------------------------
+    // Allocation routines
+    //
+
+    /** Allocates a new direct ByteBuffer with the specified number of
+        elements. The returned buffer will have its byte order set to
+        the host platform's native byte order. */
+    public static ByteBuffer newByteBuffer(int numElements) {
+        ByteBuffer bb = ByteBuffer.allocateDirect(numElements);
+        nativeOrder(bb);
+        return bb;
+    }
+    
+    /** Allocates a new direct IntBuffer with the specified number of
+        elements. The returned buffer will have its byte order set to
+        the host platform's native byte order. */
+    public static IntBuffer newIntBuffer(int numElements) {
+        ByteBuffer bb = newByteBuffer(numElements * SIZEOF_INT);
+        return bb.asIntBuffer();
+    }
+    
+    /** Allocates a new direct ShortBuffer with the specified number of
+        elements. The returned buffer will have its byte order set to
+        the host platform's native byte order. */
+    public static ShortBuffer newShortBuffer(int numElements) {
+        ByteBuffer bb = newByteBuffer(numElements * SIZEOF_SHORT);
+        return bb.asShortBuffer();
+    }
+    
+    /** Allocates a new direct FloatBuffer with the specified number of
+        elements. The returned buffer will have its byte order set to
+        the host platform's native byte order. */
+    public static FloatBuffer newFloatBuffer(int numElements) {
+        ByteBuffer bb = newByteBuffer(numElements * SIZEOF_FLOAT);
+        return bb.asFloatBuffer();
+    }
+    
+    //----------------------------------------------------------------------
+    // Copy routines (type-to-type)
+    //
+
+    /** Copies the <i>remaining</i> elements (as defined by
+        <code>limit() - position()</code>) in the passed FloatBuffer
+        into a newly-allocated direct ByteBuffer. The returned buffer
+        will have its byte order set to the host platform's native byte
+        order. The position of the newly-allocated buffer will be zero,
+        and the position of the passed buffer is unchanged (though its
+        mark is changed). */
+    public static ByteBuffer copyFloatBufferAsByteBuffer(FloatBuffer orig) {
+        ByteBuffer dest = newByteBuffer(orig.remaining() * SIZEOF_FLOAT);
+        dest.asFloatBuffer().put(orig);
+        dest.rewind();
+        return dest;
+    }
+  
+    /** Copies the <i>remaining</i> elements (as defined by
+        <code>limit() - position()</code>) in the passed IntBuffer into
+        a newly-allocated direct ByteBuffer. The returned buffer will
+        have its byte order set to the host platform's native byte
+        order. The position of the newly-allocated buffer will be zero,
+        and the position of the passed buffer is unchanged (though its
+        mark is changed). */
+    public static ByteBuffer copyIntBufferAsByteBuffer(IntBuffer orig) {
+        ByteBuffer dest = newByteBuffer(orig.remaining() * SIZEOF_INT);
+        dest.asIntBuffer().put(orig);
+        dest.rewind();
+        return dest;
+    }
+  
+    /** Copies the <i>remaining</i> elements (as defined by
+        <code>limit() - position()</code>) in the passed ShortBuffer
+        into a newly-allocated direct ByteBuffer. The returned buffer
+        will have its byte order set to the host platform's native byte
+        order. The position of the newly-allocated buffer will be zero,
+        and the position of the passed buffer is unchanged (though its
+        mark is changed). */
+    public static ByteBuffer copyShortBufferAsByteBuffer(ShortBuffer orig) {
+        ByteBuffer dest = newByteBuffer(orig.remaining() * SIZEOF_SHORT);
+        dest.asShortBuffer().put(orig);
+        dest.rewind();
+        return dest;
+    }
+
+    /** Copies the <i>remaining</i> elements (as defined by
+        <code>limit() - position()</code>) in the passed ByteBuffer into
+        a newly-allocated direct ByteBuffer. The returned buffer will
+        have its byte order set to the host platform's native byte
+        order. The position of the newly-allocated buffer will be zero,
+        and the position of the passed buffer is unchanged (though its
+        mark is changed). */
+    public static ByteBuffer copyByteBuffer(ByteBuffer orig) {
+        ByteBuffer dest = newByteBuffer(orig.remaining());
+        dest.put(orig);
+        dest.rewind();
+        return dest;
+    }
+
+    //----------------------------------------------------------------------
+    // Conversion routines 
+    //
+
+    public static float[] getFloatArray(double[] source) {
+        int i=source.length;
+        float[] dest = new float[i--];
+        while(i>=0) { dest[i]=(float)source[i]; i--; }
+        return dest;
+    }
+
+    public static ByteBuffer nativeOrder(ByteBuffer buf) {
+        if (!isCDCFP) {
+            try {
+                if (byteOrderClass == null) {
+                    byteOrderClass = Class.forName("java.nio.ByteOrder");
+                    orderMethod = ByteBuffer.class.getMethod("order", new Class[] { byteOrderClass });
+                    Method nativeOrderMethod = byteOrderClass.getMethod("nativeOrder", null);
+                    nativeOrderObject = nativeOrderMethod.invoke(null, null);
+                }
+            } catch (Throwable t) {
+                // Must be running on CDC / FP
+                isCDCFP = true;
+            }
+
+            if (!isCDCFP) {
+                try {
+                    orderMethod.invoke(buf, new Object[] { nativeOrderObject });
+                } catch (Throwable t) {
+                }
+            }
+        }
+        return buf;
+    }
+
+    //----------------------------------------------------------------------
+    // Internals only below this point
+    //
+
+    // NOTE that this work must be done reflectively at the present time
+    // because this code must compile and run correctly on both CDC/FP and J2SE
+    private static boolean isCDCFP;
+    private static Class byteOrderClass;
+    private static Object nativeOrderObject;
+    private static Method orderMethod;
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/InternalBufferUtil.java.javase b/src/jogl/classes/com/jogamp/opengl/impl/InternalBufferUtil.java.javase
new file mode 100644
index 000000000..655fa95de
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/InternalBufferUtil.java.javase
@@ -0,0 +1,199 @@
+/*
+ * Copyright (c) 2009 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.
+ * 
+ */
+
+package com.jogamp.opengl.impl;
+
+import java.lang.reflect.*;
+import java.nio.*;
+
+/** Internal copy of selected routines from BufferUtil to avoid
+    outward dependencies on com.jogamp.opengl.util package. */
+public class InternalBufferUtil {
+    public static final int SIZEOF_BYTE = 1;
+    public static final int SIZEOF_SHORT = 2;
+    public static final int SIZEOF_INT = 4;
+    public static final int SIZEOF_FLOAT = 4;
+    public static final int SIZEOF_LONG = 8;
+    public static final int SIZEOF_DOUBLE = 8;
+
+    //----------------------------------------------------------------------
+    // Allocation routines
+    //
+
+    /** Allocates a new direct ByteBuffer with the specified number of
+        elements. The returned buffer will have its byte order set to
+        the host platform's native byte order. */
+    public static ByteBuffer newByteBuffer(int numElements) {
+        ByteBuffer bb = ByteBuffer.allocateDirect(numElements);
+        nativeOrder(bb);
+        return bb;
+    }
+    
+    /** Allocates a new direct DoubleBuffer with the specified number of
+        elements. The returned buffer will have its byte order set to
+        the host platform's native byte order. */
+    public static DoubleBuffer newDoubleBuffer(int numElements) {
+        ByteBuffer bb = newByteBuffer(numElements * SIZEOF_DOUBLE);
+        return bb.asDoubleBuffer();
+    }
+
+    /** Allocates a new direct IntBuffer with the specified number of
+        elements. The returned buffer will have its byte order set to
+        the host platform's native byte order. */
+    public static IntBuffer newIntBuffer(int numElements) {
+        ByteBuffer bb = newByteBuffer(numElements * SIZEOF_INT);
+        return bb.asIntBuffer();
+    }
+    
+    /** Allocates a new direct ShortBuffer with the specified number of
+        elements. The returned buffer will have its byte order set to
+        the host platform's native byte order. */
+    public static ShortBuffer newShortBuffer(int numElements) {
+        ByteBuffer bb = newByteBuffer(numElements * SIZEOF_SHORT);
+        return bb.asShortBuffer();
+    }
+    
+    /** Allocates a new direct FloatBuffer with the specified number of
+        elements. The returned buffer will have its byte order set to
+        the host platform's native byte order. */
+    public static FloatBuffer newFloatBuffer(int numElements) {
+        ByteBuffer bb = newByteBuffer(numElements * SIZEOF_FLOAT);
+        return bb.asFloatBuffer();
+    }
+    
+    //----------------------------------------------------------------------
+    // Copy routines (type-to-ByteBuffer)
+    //
+
+    /** Copies the <i>remaining</i> elements (as defined by
+        <code>limit() - position()</code>) in the passed FloatBuffer
+        into a newly-allocated direct ByteBuffer. The returned buffer
+        will have its byte order set to the host platform's native byte
+        order. The position of the newly-allocated buffer will be zero,
+        and the position of the passed buffer is unchanged (though its
+        mark is changed). */
+    public static ByteBuffer copyFloatBufferAsByteBuffer(FloatBuffer orig) {
+        ByteBuffer dest = newByteBuffer(orig.remaining() * SIZEOF_FLOAT);
+        dest.asFloatBuffer().put(orig);
+        dest.rewind();
+        return dest;
+    }
+  
+    /** Copies the <i>remaining</i> elements (as defined by
+        <code>limit() - position()</code>) in the passed IntBuffer into
+        a newly-allocated direct ByteBuffer. The returned buffer will
+        have its byte order set to the host platform's native byte
+        order. The position of the newly-allocated buffer will be zero,
+        and the position of the passed buffer is unchanged (though its
+        mark is changed). */
+    public static ByteBuffer copyIntBufferAsByteBuffer(IntBuffer orig) {
+        ByteBuffer dest = newByteBuffer(orig.remaining() * SIZEOF_INT);
+        dest.asIntBuffer().put(orig);
+        dest.rewind();
+        return dest;
+    }
+  
+    /** Copies the <i>remaining</i> elements (as defined by
+        <code>limit() - position()</code>) in the passed ShortBuffer
+        into a newly-allocated direct ByteBuffer. The returned buffer
+        will have its byte order set to the host platform's native byte
+        order. The position of the newly-allocated buffer will be zero,
+        and the position of the passed buffer is unchanged (though its
+        mark is changed). */
+    public static ByteBuffer copyShortBufferAsByteBuffer(ShortBuffer orig) {
+        ByteBuffer dest = newByteBuffer(orig.remaining() * SIZEOF_SHORT);
+        dest.asShortBuffer().put(orig);
+        dest.rewind();
+        return dest;
+    }
+
+    /** Copies the <i>remaining</i> elements (as defined by
+        <code>limit() - position()</code>) in the passed ByteBuffer into
+        a newly-allocated direct ByteBuffer. The returned buffer will
+        have its byte order set to the host platform's native byte
+        order. The position of the newly-allocated buffer will be zero,
+        and the position of the passed buffer is unchanged (though its
+        mark is changed). */
+    public static ByteBuffer copyByteBuffer(ByteBuffer orig) {
+        ByteBuffer dest = newByteBuffer(orig.remaining());
+        dest.put(orig);
+        dest.rewind();
+        return dest;
+    }
+
+    //----------------------------------------------------------------------
+    // Conversion routines 
+    //
+
+    public static float[] getFloatArray(double[] source) {
+        int i=source.length;
+        float[] dest = new float[i--];
+        while(i>=0) { dest[i]=(float)source[i]; i--; }
+        return dest;
+    }
+
+    public static ByteBuffer nativeOrder(ByteBuffer buf) {
+        if (!isCDCFP) {
+            try {
+                if (byteOrderClass == null) {
+                    byteOrderClass = Class.forName("java.nio.ByteOrder");
+                    orderMethod = ByteBuffer.class.getMethod("order", new Class[] { byteOrderClass });
+                    Method nativeOrderMethod = byteOrderClass.getMethod("nativeOrder", null);
+                    nativeOrderObject = nativeOrderMethod.invoke(null, null);
+                }
+            } catch (Throwable t) {
+                // Must be running on CDC / FP
+                isCDCFP = true;
+            }
+
+            if (!isCDCFP) {
+                try {
+                    orderMethod.invoke(buf, new Object[] { nativeOrderObject });
+                } catch (Throwable t) {
+                }
+            }
+        }
+        return buf;
+    }
+
+    //----------------------------------------------------------------------
+    // Internals only below this point
+    //
+
+    // NOTE that this work must be done reflectively at the present time
+    // because this code must compile and run correctly on both CDC/FP and J2SE
+    private static boolean isCDCFP;
+    private static Class byteOrderClass;
+    private static Object nativeOrderObject;
+    private static Method orderMethod;
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/NativeLibLoader.java b/src/jogl/classes/com/jogamp/opengl/impl/NativeLibLoader.java
new file mode 100644
index 000000000..aa71a37da
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/NativeLibLoader.java
@@ -0,0 +1,109 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+// FIXME: refactor Java SE dependencies
+//import java.awt.Toolkit;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.HashSet;
+import com.sun.nativewindow.impl.NativeLibLoaderBase;
+
+public class NativeLibLoader extends NativeLibLoaderBase {
+  public static void loadNEWT() {
+    AccessController.doPrivileged(new PrivilegedAction() {
+      public Object run() {
+        loadLibrary("newt", nativeOSPreload, true);
+        return null;
+      }
+    });
+  }
+
+  public static void loadGLDesktop() {
+    AccessController.doPrivileged(new PrivilegedAction() {
+      public Object run() {
+        loadLibrary("jogl_gl2", nativeOSPreload, true);
+        return null;
+      }
+    });
+  }
+
+  public static void loadGLDesktopES12() {
+    AccessController.doPrivileged(new PrivilegedAction() {
+      public Object run() {
+        loadLibrary("jogl_gl2es12", nativeOSPreload, true);
+        return null;
+      }
+    });
+  }
+
+  public static void loadES2() {
+    AccessController.doPrivileged(new PrivilegedAction() {
+      public Object run() {
+        loadLibrary("jogl_es2", nativeOSPreload, true);
+        return null;
+      }
+    });
+  }
+
+  public static void loadES1() {
+    AccessController.doPrivileged(new PrivilegedAction() {
+      public Object run() {
+        loadLibrary("jogl_es1", nativeOSPreload, true);
+        return null;
+      }
+    });
+  }
+
+  public static void loadCgImpl() {
+    AccessController.doPrivileged(new PrivilegedAction() {
+      public Object run() {
+        String[] preload = { "nativewindow", "cg", "cgGL" };
+        loadLibrary("jogl_cg", preload, true);
+        return null;
+      }
+    });
+  }
+
+  private static final String[] nativeOSPreload = { "nativewindow_x11" };
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/ProjectFloat.java b/src/jogl/classes/com/jogamp/opengl/impl/ProjectFloat.java
new file mode 100755
index 000000000..dbd84c9de
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/ProjectFloat.java
@@ -0,0 +1,1057 @@
+/*
+** License Applicability. Except to the extent portions of this file are
+** made subject to an alternative license as permitted in the SGI Free
+** Software License B, Version 2.0 (the "License"), the contents of this
+** file are subject only to the provisions of the License. You may not use
+** this file except in compliance with the License. You may obtain a copy
+** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
+** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+** 
+** http://oss.sgi.com/projects/FreeB
+** 
+** Note that, as provided in the License, the Software is distributed on an
+** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+**
+** NOTE:  The Original Code (as defined below) has been licensed to Sun
+** Microsystems, Inc. ("Sun") under the SGI Free Software License B
+** (Version 1.1), shown above ("SGI License").   Pursuant to Section
+** 3.2(3) of the SGI License, Sun is distributing the Covered Code to
+** you under an alternative license ("Alternative License").  This
+** Alternative License includes all of the provisions of the SGI License
+** except that Section 2.2 and 11 are omitted.  Any differences between
+** the Alternative License and the SGI License are offered solely by Sun
+** and not by SGI.
+** 
+** Original Code. The Original Code is: OpenGL Sample Implementation,
+** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+** Copyright in any portions created by third parties is as indicated
+** elsewhere herein. All Rights Reserved.
+** 
+** Additional Notice Provisions: The application programming interfaces
+** established by SGI in conjunction with the Original Code are The
+** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
+** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
+** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
+** Window System(R) (Version 1.3), released October 19, 1998. This software
+** was created using the OpenGL(R) version 1.2.1 Sample Implementation
+** published by SGI, but has not been independently verified as being
+** compliant with the OpenGL(R) version 1.2.1 Specification.
+**
+** $Date: 2009-03-13 22:20:29 -0700 (Fri, 13 Mar 2009) $ $Revision: 1867 $
+** $Header$
+*/
+
+/* 
+ * Copyright (c) 2002-2004 LWJGL Project
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are 
+ * met:
+ * 
+ * * Redistributions of source code must retain the above copyright 
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'LWJGL' nor the names of 
+ *   its contributors may be used to endorse or promote products derived 
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * 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.
+ */
+package com.jogamp.opengl.impl;
+
+import java.nio.*;
+
+import javax.media.opengl.*;
+import javax.media.opengl.fixedfunc.GLMatrixFunc;
+
+/**
+ * ProjectFloat.java
+ * <p/>
+ * <p/>
+ * Created 11-jan-2004
+ * 
+ * @author Erik Duijs
+ * @author Kenneth Russell
+ */
+public class ProjectFloat {
+  private static final float[] IDENTITY_MATRIX =
+    new float[] {
+      1.0f, 0.0f, 0.0f, 0.0f,
+      0.0f, 1.0f, 0.0f, 0.0f,
+      0.0f, 0.0f, 1.0f, 0.0f,
+      0.0f, 0.0f, 0.0f, 1.0f };
+
+  private static final float[] ZERO_MATRIX =
+    new float[] {
+      0.0f, 0.0f, 0.0f, 0.0f,
+      0.0f, 0.0f, 0.0f, 0.0f,
+      0.0f, 0.0f, 0.0f, 0.0f,
+      0.0f, 0.0f, 0.0f, 0.0f };
+
+  // Note that we have cloned parts of the implementation in order to
+  // support incoming Buffers. The reason for this is to avoid loading
+  // non-direct buffer subclasses unnecessarily, because doing so can
+  // cause performance decreases on direct buffer operations, at least
+  // on the current HotSpot JVM. It would be nicer (and make the code
+  // simpler) to simply have the array-based entry points delegate to
+  // the versions taking Buffers by wrapping the arrays.
+
+  // Array-based implementation
+  private final float[] matrix = new float[16];
+  private final float[][] tempInvertMatrix = new float[4][4];
+
+  private final float[] in = new float[4];
+  private final float[] out = new float[4];
+
+  private final float[] forward = new float[3];
+  private final float[] side = new float[3];
+  private final float[] up = new float[3];
+  
+  // Buffer-based implementation
+  private FloatBuffer locbuf;
+  private final FloatBuffer matrixBuf;
+  private final FloatBuffer tempInvertMatrixBuf;
+
+  private final FloatBuffer inBuf;
+  private final FloatBuffer outBuf;
+
+  private final FloatBuffer forwardBuf;
+  private final FloatBuffer sideBuf;
+  private final FloatBuffer upBuf;
+
+  public ProjectFloat() {
+    // Use direct buffers to avoid loading indirect buffer
+    // implementations for applications trying to avoid doing so.
+    // Slice up one big buffer because some NIO implementations
+    // allocate a huge amount of memory to back even the smallest of
+    // buffers.
+    locbuf = InternalBufferUtil.newFloatBuffer(2*16+2*4+3*3);
+    int pos = 0;
+    int sz = 16;
+    matrixBuf = slice(locbuf, pos, sz);
+    pos += sz;
+    tempInvertMatrixBuf = slice(locbuf, pos, sz);
+    pos += sz;
+    sz = 4;
+    inBuf = slice(locbuf, pos, sz);
+    pos += sz;
+    outBuf = slice(locbuf, pos, sz);
+    pos += sz;
+    sz = 3;
+    forwardBuf = slice(locbuf, pos, sz);
+    pos += sz;
+    sideBuf = slice(locbuf, pos, sz);
+    pos += sz;
+    upBuf = slice(locbuf, pos, sz);
+  }
+
+  public void destroy() {
+    if(locbuf!=null) {
+        locbuf.clear();
+        locbuf=null;
+    }
+  }
+
+  private static FloatBuffer slice(FloatBuffer buf, int pos, int len) {
+    buf.position(pos);
+    buf.limit(pos + len);
+    return buf.slice();
+  }
+
+  /**
+   * Make matrix an identity matrix
+   */
+  public static void gluMakeIdentityf(FloatBuffer m) {
+    int oldPos = m.position();
+    m.put(IDENTITY_MATRIX);
+    m.position(oldPos);
+  }
+
+  /**
+   * Make matrix an zero matrix
+   */
+  public static void gluMakeZero(FloatBuffer m) {
+    int oldPos = m.position();
+    m.put(ZERO_MATRIX);
+    m.position(oldPos);
+  }
+
+  /**
+   * Make matrix an identity matrix
+   */
+  public static void gluMakeIdentityf(float[] m) {
+    for (int i = 0; i < 16; i++) {
+      m[i] = IDENTITY_MATRIX[i];
+    }
+  }
+
+  /**
+   * Method __gluMultMatrixVecf
+   * 
+   * @param matrix
+   * @param in
+   * @param out
+   */
+  private void __gluMultMatrixVecf(float[] matrix, int matrix_offset, float[] in, float[] out) {
+    for (int i = 0; i < 4; i++) {
+      out[i] =
+        in[0] * matrix[0*4+i+matrix_offset] +
+        in[1] * matrix[1*4+i+matrix_offset] +
+        in[2] * matrix[2*4+i+matrix_offset] +
+        in[3] * matrix[3*4+i+matrix_offset];
+    }
+  }
+
+  /**
+   * Method __gluMultMatrixVecf
+   * 
+   * @param matrix
+   * @param in
+   * @param out
+   */
+  private void __gluMultMatrixVecf(FloatBuffer matrix, FloatBuffer in, FloatBuffer out) {
+    int inPos = in.position();
+    int outPos = out.position();
+    int matrixPos = matrix.position();
+    for (int i = 0; i < 4; i++) {
+      out.put(i + outPos,
+              in.get(0+inPos) * matrix.get(0*4+i+matrixPos) +
+              in.get(1+inPos) * matrix.get(1*4+i+matrixPos) +
+              in.get(2+inPos) * matrix.get(2*4+i+matrixPos) +
+              in.get(3+inPos) * matrix.get(3*4+i+matrixPos));
+    }
+  }
+
+  /**
+   * @param src
+   * @param inverse
+   * 
+   * @return
+   */
+  public boolean gluInvertMatrixf(float[] src, float[] inverse) {
+    int i, j, k, swap;
+    float t;
+    float[][] temp = tempInvertMatrix;
+
+    for (i = 0; i < 4; i++) {
+      for (j = 0; j < 4; j++) {
+        temp[i][j] = src[i*4+j];
+      }
+    }
+    gluMakeIdentityf(inverse);
+
+    for (i = 0; i < 4; i++) {
+      //
+      // Look for largest element in column
+      //
+      swap = i;
+      for (j = i + 1; j < 4; j++) {
+        if (Math.abs(temp[j][i]) > Math.abs(temp[i][i])) {
+          swap = j;
+        }
+      }
+
+      if (swap != i) {
+        //
+        // Swap rows.
+        //
+        for (k = 0; k < 4; k++) {
+          t = temp[i][k];
+          temp[i][k] = temp[swap][k];
+          temp[swap][k] = t;
+
+          t = inverse[i*4+k];
+          inverse[i*4+k] = inverse[swap*4+k];
+          inverse[swap*4+k] = t;
+        }
+      }
+
+      if (temp[i][i] == 0) {
+        //
+        // No non-zero pivot. The matrix is singular, which shouldn't
+        // happen. This means the user gave us a bad matrix.
+        //
+        return false;
+      }
+
+      t = temp[i][i];
+      for (k = 0; k < 4; k++) {
+        temp[i][k] /= t;
+        inverse[i*4+k] /= t;
+      }
+      for (j = 0; j < 4; j++) {
+        if (j != i) {
+          t = temp[j][i];
+          for (k = 0; k < 4; k++) {
+            temp[j][k] -= temp[i][k] * t;
+            inverse[j*4+k] -= inverse[i*4+k]*t;
+          }
+        }
+      }
+    }
+    return true;
+  }
+
+  /**
+   * @param src
+   * @param inverse
+   * 
+   * @return
+   */
+  public boolean gluInvertMatrixf(FloatBuffer src, FloatBuffer inverse) {
+    int i, j, k, swap;
+    float t;
+
+    int srcPos = src.position();
+    int invPos = inverse.position();
+
+    FloatBuffer temp = tempInvertMatrixBuf;
+
+    for (i = 0; i < 4; i++) {
+      for (j = 0; j < 4; j++) {
+        temp.put(i*4+j, src.get(i*4+j + srcPos));
+      }
+    }
+    gluMakeIdentityf(inverse);
+
+    for (i = 0; i < 4; i++) {
+      //
+      // Look for largest element in column
+      //
+      swap = i;
+      for (j = i + 1; j < 4; j++) {
+        if (Math.abs(temp.get(j*4+i)) > Math.abs(temp.get(i*4+i))) {
+          swap = j;
+        }
+      }
+
+      if (swap != i) {
+        //
+        // Swap rows.
+        //
+        for (k = 0; k < 4; k++) {
+          t = temp.get(i*4+k);
+          temp.put(i*4+k, temp.get(swap*4+k));
+          temp.put(swap*4+k, t);
+
+          t = inverse.get(i*4+k + invPos);
+          inverse.put(i*4+k + invPos, inverse.get(swap*4+k + invPos));
+          inverse.put(swap*4+k + invPos, t);
+        }
+      }
+
+      if (temp.get(i*4+i) == 0) {
+        //
+        // No non-zero pivot. The matrix is singular, which shouldn't
+        // happen. This means the user gave us a bad matrix.
+        //
+        return false;
+      }
+
+      t = temp.get(i*4+i);
+      for (k = 0; k < 4; k++) {
+        temp.put(i*4+k, temp.get(i*4+k) / t);
+        inverse.put(i*4+k + invPos, inverse.get(i*4+k + invPos) / t);
+      }
+      for (j = 0; j < 4; j++) {
+        if (j != i) {
+          t = temp.get(j*4+i);
+          for (k = 0; k < 4; k++) {
+            temp.put(j*4+k, temp.get(j*4+k) - temp.get(i*4+k) * t);
+            inverse.put(j*4+k + invPos, inverse.get(j*4+k + invPos) - inverse.get(i*4+k + invPos) * t);
+          }
+        }
+      }
+    }
+    return true;
+  }
+
+
+  /**
+   * @param a
+   * @param b
+   * @param r
+   */
+  private void gluMultMatricesf(float[] a, int a_offset, float[] b, int b_offset, float[] r) {
+    for (int i = 0; i < 4; i++) {
+      for (int j = 0; j < 4; j++) {
+        r[i*4+j] =
+          a[i*4+0+a_offset]*b[0*4+j+b_offset] +
+          a[i*4+1+a_offset]*b[1*4+j+b_offset] +
+          a[i*4+2+a_offset]*b[2*4+j+b_offset] +
+          a[i*4+3+a_offset]*b[3*4+j+b_offset];
+      }
+    }
+  }
+
+
+  /**
+   * @param a
+   * @param b
+   * @param r
+   */
+  public static void gluMultMatricesf(FloatBuffer a, FloatBuffer b, FloatBuffer r) {
+    int aPos = a.position();
+    int bPos = b.position();
+    int rPos = r.position();
+
+    for (int i = 0; i < 4; i++) {
+      for (int j = 0; j < 4; j++) {
+        r.put(i*4+j + rPos,
+          a.get(i*4+0+aPos)*b.get(0*4+j+bPos) +
+          a.get(i*4+1+aPos)*b.get(1*4+j+bPos) +
+          a.get(i*4+2+aPos)*b.get(2*4+j+bPos) +
+          a.get(i*4+3+aPos)*b.get(3*4+j+bPos));
+      }
+    }
+  }
+
+  /**
+   * Normalize vector
+   *
+   * @param v
+   */
+  public static void normalize(float[] v) {
+    float r;
+
+    r = (float) Math.sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
+    if ( r == 0.0 || r == 1.0)
+      return;
+
+    r = 1.0f / r;
+
+    v[0] *= r;
+    v[1] *= r;
+    v[2] *= r;
+
+    return;
+  }
+
+  /**
+   * Normalize vector
+   *
+   * @param v
+   */
+  public static void normalize(FloatBuffer v) {
+    float r;
+
+    int vPos = v.position();
+
+    r = (float) Math.sqrt(v.get(0+vPos) * v.get(0+vPos) +
+                          v.get(1+vPos) * v.get(1+vPos) +
+                          v.get(2+vPos) * v.get(2+vPos));
+    if ( r == 0.0 || r == 1.0)
+      return;
+
+    r = 1.0f / r;
+
+    v.put(0+vPos, v.get(0+vPos) * r);
+    v.put(1+vPos, v.get(1+vPos) * r);
+    v.put(2+vPos, v.get(2+vPos) * r);
+
+    return;
+  }
+
+
+  /**
+   * Calculate cross-product
+   *
+   * @param v1
+   * @param v2
+   * @param result
+   */
+  private static void cross(float[] v1, float[] v2, float[] result) {
+    result[0] = v1[1] * v2[2] - v1[2] * v2[1];
+    result[1] = v1[2] * v2[0] - v1[0] * v2[2];
+    result[2] = v1[0] * v2[1] - v1[1] * v2[0];
+  }
+
+  /**
+   * Calculate cross-product
+   *
+   * @param v1
+   * @param v2
+   * @param result
+   */
+  private static void cross(FloatBuffer v1, FloatBuffer v2, FloatBuffer result) {
+    int v1Pos = v1.position();
+    int v2Pos = v2.position();
+    int rPos  = result.position();
+
+    result.put(0+rPos, v1.get(1+v1Pos) * v2.get(2+v2Pos) - v1.get(2+v1Pos) * v2.get(1+v2Pos));
+    result.put(1+rPos, v1.get(2+v1Pos) * v2.get(0+v2Pos) - v1.get(0+v1Pos) * v2.get(2+v2Pos));
+    result.put(2+rPos, v1.get(0+v1Pos) * v2.get(1+v2Pos) - v1.get(1+v1Pos) * v2.get(0+v2Pos));
+  }
+
+  /**
+   * Method gluOrtho2D.
+   * 
+   * @param left
+   * @param right
+   * @param bottom
+   * @param top
+   */
+  public void gluOrtho2D(GLMatrixFunc gl, float left, float right, float bottom, float top) {
+    gl.glOrthof(left, right, bottom, top, -1, 1);
+  }
+
+  /**
+   * Method gluPerspective.
+   * 
+   * @param fovy
+   * @param aspect
+   * @param zNear
+   * @param zFar
+   */
+  public void gluPerspective(GLMatrixFunc gl, float fovy, float aspect, float zNear, float zFar) {
+    float sine, cotangent, deltaZ;
+    float radians = fovy / 2 * (float) Math.PI / 180;
+
+    deltaZ = zFar - zNear;
+    sine = (float) Math.sin(radians);
+
+    if ((deltaZ == 0) || (sine == 0) || (aspect == 0)) {
+      return;
+    }
+
+    cotangent = (float) Math.cos(radians) / sine;
+
+    gluMakeIdentityf(matrixBuf);
+
+    matrixBuf.put(0 * 4 + 0, cotangent / aspect);
+    matrixBuf.put(1 * 4 + 1, cotangent);
+    matrixBuf.put(2 * 4 + 2, - (zFar + zNear) / deltaZ);
+    matrixBuf.put(2 * 4 + 3, -1);
+    matrixBuf.put(3 * 4 + 2, -2 * zNear * zFar / deltaZ);
+    matrixBuf.put(3 * 4 + 3, 0);
+
+    gl.glMultMatrixf(matrixBuf);
+  }
+
+  /**
+   * Method gluLookAt
+   * 
+   * @param eyex
+   * @param eyey
+   * @param eyez
+   * @param centerx
+   * @param centery
+   * @param centerz
+   * @param upx
+   * @param upy
+   * @param upz
+   */
+  public void gluLookAt(GLMatrixFunc gl,
+                        float eyex,
+                        float eyey,
+                        float eyez,
+                        float centerx,
+                        float centery,
+                        float centerz,
+                        float upx,
+                        float upy,
+                        float upz) {
+    FloatBuffer forward = this.forwardBuf;
+    FloatBuffer side = this.sideBuf;
+    FloatBuffer up = this.upBuf;
+
+    forward.put(0, centerx - eyex);
+    forward.put(1, centery - eyey);
+    forward.put(2, centerz - eyez);
+
+    up.put(0, upx);
+    up.put(1, upy);
+    up.put(2, upz);
+
+    normalize(forward);
+
+    /* Side = forward x up */
+    cross(forward, up, side);
+    normalize(side);
+
+    /* Recompute up as: up = side x forward */
+    cross(side, forward, up);
+
+    gluMakeIdentityf(matrixBuf);
+    matrixBuf.put(0 * 4 + 0, side.get(0));
+    matrixBuf.put(1 * 4 + 0, side.get(1));
+    matrixBuf.put(2 * 4 + 0, side.get(2));
+
+    matrixBuf.put(0 * 4 + 1, up.get(0));
+    matrixBuf.put(1 * 4 + 1, up.get(1));
+    matrixBuf.put(2 * 4 + 1, up.get(2));
+
+    matrixBuf.put(0 * 4 + 2, -forward.get(0));
+    matrixBuf.put(1 * 4 + 2, -forward.get(1));
+    matrixBuf.put(2 * 4 + 2, -forward.get(2));
+
+    gl.glMultMatrixf(matrixBuf);
+    gl.glTranslatef(-eyex, -eyey, -eyez);
+  }
+
+  /**
+   * Method gluProject
+   * 
+   * @param objx
+   * @param objy
+   * @param objz
+   * @param modelMatrix
+   * @param projMatrix
+   * @param viewport
+   * @param win_pos
+   * 
+   * @return
+   */
+  public boolean gluProject(float objx,
+                            float objy,
+                            float objz,
+                            float[] modelMatrix,
+                            int modelMatrix_offset,
+                            float[] projMatrix,
+                            int projMatrix_offset,
+                            int[] viewport,
+                            int viewport_offset,
+                            float[] win_pos,
+                            int win_pos_offset ) {
+
+    float[] in = this.in;
+    float[] out = this.out;
+
+    in[0] = objx;
+    in[1] = objy;
+    in[2] = objz;
+    in[3] = 1.0f;
+
+    __gluMultMatrixVecf(modelMatrix, modelMatrix_offset, in, out);
+    __gluMultMatrixVecf(projMatrix, projMatrix_offset, out, in);
+
+    if (in[3] == 0.0f)
+      return false;
+
+    in[3] = (1.0f / in[3]) * 0.5f;
+
+    // Map x, y and z to range 0-1
+    in[0] = in[0] * in[3] + 0.5f;
+    in[1] = in[1] * in[3] + 0.5f;
+    in[2] = in[2] * in[3] + 0.5f;
+
+    // Map x,y to viewport
+    win_pos[0+win_pos_offset] = in[0] * viewport[2+viewport_offset] + viewport[0+viewport_offset];
+    win_pos[1+win_pos_offset] = in[1] * viewport[3+viewport_offset] + viewport[1+viewport_offset];
+    win_pos[2+win_pos_offset] = in[2];
+
+    return true;
+  }
+
+  /**
+   * Method gluProject
+   * 
+   * @param objx
+   * @param objy
+   * @param objz
+   * @param modelMatrix
+   * @param projMatrix
+   * @param viewport
+   * @param win_pos
+   * 
+   * @return
+   */
+  public boolean gluProject(float objx,
+                            float objy,
+                            float objz,
+                            FloatBuffer modelMatrix,
+                            FloatBuffer projMatrix,
+                            IntBuffer viewport,
+                            FloatBuffer win_pos) {
+
+    FloatBuffer in = this.inBuf;
+    FloatBuffer out = this.outBuf;
+
+    in.put(0, objx);
+    in.put(1, objy);
+    in.put(2, objz);
+    in.put(3, 1.0f);
+
+    __gluMultMatrixVecf(modelMatrix, in, out);
+    __gluMultMatrixVecf(projMatrix, out, in);
+
+    if (in.get(3) == 0.0f)
+      return false;
+
+    in.put(3, (1.0f / in.get(3)) * 0.5f);
+
+    // Map x, y and z to range 0-1
+    in.put(0, in.get(0) * in.get(3) + 0.5f);
+    in.put(1, in.get(1) * in.get(3) + 0.5f);
+    in.put(2, in.get(2) * in.get(3) + 0.5f);
+
+    // Map x,y to viewport
+    int vPos = viewport.position();
+    int wPos = win_pos.position();
+    win_pos.put(0+wPos, in.get(0) * viewport.get(2+vPos) + viewport.get(0+vPos));
+    win_pos.put(1+wPos, in.get(1) * viewport.get(3+vPos) + viewport.get(1+vPos));
+    win_pos.put(2+wPos, in.get(2));
+
+    return true;
+  }
+
+
+  /**
+   * Method gluUnproject
+   * 
+   * @param winx
+   * @param winy
+   * @param winz
+   * @param modelMatrix
+   * @param projMatrix
+   * @param viewport
+   * @param obj_pos
+   * 
+   * @return
+   */
+  public boolean gluUnProject(float winx,
+                              float winy,
+                              float winz,
+                              float[] modelMatrix,
+                              int modelMatrix_offset,
+                              float[] projMatrix,
+                              int projMatrix_offset,
+                              int[] viewport,
+                              int viewport_offset,
+                              float[] obj_pos,
+                              int obj_pos_offset) {
+    float[] in = this.in;
+    float[] out = this.out;
+
+    gluMultMatricesf(modelMatrix, modelMatrix_offset, projMatrix, projMatrix_offset, matrix);
+
+    if (!gluInvertMatrixf(matrix, matrix))
+      return false;
+
+    in[0] = winx;
+    in[1] = winy;
+    in[2] = winz;
+    in[3] = 1.0f;
+
+    // Map x and y from window coordinates
+    in[0] = (in[0] - viewport[0+viewport_offset]) / viewport[2+viewport_offset];
+    in[1] = (in[1] - viewport[1+viewport_offset]) / viewport[3+viewport_offset];
+
+    // Map to range -1 to 1
+    in[0] = in[0] * 2 - 1;
+    in[1] = in[1] * 2 - 1;
+    in[2] = in[2] * 2 - 1;
+
+    __gluMultMatrixVecf(matrix, 0, in, out);
+
+    if (out[3] == 0.0)
+      return false;
+
+    out[3] = 1.0f / out[3];
+
+    obj_pos[0+obj_pos_offset] = out[0] * out[3];
+    obj_pos[1+obj_pos_offset] = out[1] * out[3];
+    obj_pos[2+obj_pos_offset] = out[2] * out[3];
+
+    return true;
+  }
+
+
+  /**
+   * Method gluUnproject
+   * 
+   * @param winx
+   * @param winy
+   * @param winz
+   * @param modelMatrix
+   * @param projMatrix
+   * @param viewport
+   * @param obj_pos
+   * 
+   * @return
+   */
+  public boolean gluUnProject(float winx,
+                              float winy,
+                              float winz,
+                              FloatBuffer modelMatrix,
+                              FloatBuffer projMatrix,
+                              IntBuffer viewport,
+                              FloatBuffer obj_pos) {
+    FloatBuffer in = this.inBuf;
+    FloatBuffer out = this.outBuf;
+
+    gluMultMatricesf(modelMatrix, projMatrix, matrixBuf);
+
+    if (!gluInvertMatrixf(matrixBuf, matrixBuf))
+      return false;
+
+    in.put(0, winx);
+    in.put(1, winy);
+    in.put(2, winz);
+    in.put(3, 1.0f);
+
+    // Map x and y from window coordinates
+    int vPos = viewport.position();
+    int oPos = obj_pos.position();
+    in.put(0, (in.get(0) - viewport.get(0+vPos)) / viewport.get(2+vPos));
+    in.put(1, (in.get(1) - viewport.get(1+vPos)) / viewport.get(3+vPos));
+
+    // Map to range -1 to 1
+    in.put(0, in.get(0) * 2 - 1);
+    in.put(1, in.get(1) * 2 - 1);
+    in.put(2, in.get(2) * 2 - 1);
+
+    __gluMultMatrixVecf(matrixBuf, in, out);
+
+    if (out.get(3) == 0.0f)
+      return false;
+
+    out.put(3, 1.0f / out.get(3));
+
+    obj_pos.put(0+oPos, out.get(0) * out.get(3));
+    obj_pos.put(1+oPos, out.get(1) * out.get(3));
+    obj_pos.put(2+oPos, out.get(2) * out.get(3));
+
+    return true;
+  }
+
+
+  /**
+   * Method gluUnproject4
+   * 
+   * @param winx
+   * @param winy
+   * @param winz
+   * @param clipw
+   * @param modelMatrix
+   * @param projMatrix
+   * @param viewport
+   * @param near
+   * @param far
+   * @param obj_pos
+   * 
+   * @return
+   */
+  public boolean gluUnProject4(float winx,
+                               float winy,
+                               float winz,
+                               float clipw,
+                               float[] modelMatrix,
+                               int modelMatrix_offset,
+                               float[] projMatrix,
+                               int projMatrix_offset,
+                               int[] viewport,
+                               int viewport_offset,
+                               float near,
+                               float far,
+                               float[] obj_pos,
+                               int obj_pos_offset ) {
+    float[] in = this.in;
+    float[] out = this.out;
+
+    gluMultMatricesf(modelMatrix, modelMatrix_offset, projMatrix, projMatrix_offset, matrix);
+
+    if (!gluInvertMatrixf(matrix, matrix))
+      return false;
+
+    in[0] = winx;
+    in[1] = winy;
+    in[2] = winz;
+    in[3] = clipw;
+
+    // Map x and y from window coordinates
+    in[0] = (in[0] - viewport[0+viewport_offset]) / viewport[2+viewport_offset];
+    in[1] = (in[1] - viewport[1+viewport_offset]) / viewport[3+viewport_offset];
+    in[2] = (in[2] - near) / (far - near);
+
+    // Map to range -1 to 1
+    in[0] = in[0] * 2 - 1;
+    in[1] = in[1] * 2 - 1;
+    in[2] = in[2] * 2 - 1;
+
+    __gluMultMatrixVecf(matrix, 0, in, out);
+
+    if (out[3] == 0.0f)
+      return false;
+
+    obj_pos[0+obj_pos_offset] = out[0];
+    obj_pos[1+obj_pos_offset] = out[1];
+    obj_pos[2+obj_pos_offset] = out[2];
+    obj_pos[3+obj_pos_offset] = out[3];
+    return true;
+  }
+
+  /**
+   * Method gluUnproject4
+   * 
+   * @param winx
+   * @param winy
+   * @param winz
+   * @param clipw
+   * @param modelMatrix
+   * @param projMatrix
+   * @param viewport
+   * @param near
+   * @param far
+   * @param obj_pos
+   * 
+   * @return
+   */
+  public boolean gluUnProject4(float winx,
+                               float winy,
+                               float winz,
+                               float clipw,
+                               FloatBuffer modelMatrix,
+                               FloatBuffer projMatrix,
+                               IntBuffer viewport,
+                               float near,
+                               float far,
+                               FloatBuffer obj_pos) {
+    FloatBuffer in = this.inBuf;
+    FloatBuffer out = this.outBuf;
+
+    gluMultMatricesf(modelMatrix, projMatrix, matrixBuf);
+
+    if (!gluInvertMatrixf(matrixBuf, matrixBuf))
+      return false;
+
+    in.put(0, winx);
+    in.put(1, winy);
+    in.put(2, winz);
+    in.put(3, clipw);
+
+    // Map x and y from window coordinates
+    int vPos = viewport.position();
+    in.put(0, (in.get(0) - viewport.get(0+vPos)) / viewport.get(2+vPos));
+    in.put(1, (in.get(1) - viewport.get(1+vPos)) / viewport.get(3+vPos));
+    in.put(2, (in.get(2) - near) / (far - near));
+
+    // Map to range -1 to 1
+    in.put(0, in.get(0) * 2 - 1);
+    in.put(1, in.get(1) * 2 - 1);
+    in.put(2, in.get(2) * 2 - 1);
+
+    __gluMultMatrixVecf(matrixBuf, in, out);
+
+    if (out.get(3) == 0.0f)
+      return false;
+
+    int oPos = obj_pos.position();
+    obj_pos.put(0+oPos, out.get(0));
+    obj_pos.put(1+oPos, out.get(1));
+    obj_pos.put(2+oPos, out.get(2));
+    obj_pos.put(3+oPos, out.get(3));
+    return true;
+  }
+
+
+  /**
+   * Method gluPickMatrix
+   * 
+   * @param x
+   * @param y
+   * @param deltaX
+   * @param deltaY
+   * @param viewport
+   */
+  public void gluPickMatrix(GLMatrixFunc gl,
+                            float x,
+                            float y,
+                            float deltaX,
+                            float deltaY,
+                            IntBuffer viewport) {
+    if (deltaX <= 0 || deltaY <= 0) {
+      return;
+    }
+
+    /* Translate and scale the picked region to the entire window */
+    int vPos = viewport.position();
+    gl.glTranslatef((viewport.get(2+vPos) - 2 * (x - viewport.get(0+vPos))) / deltaX,
+                    (viewport.get(3+vPos) - 2 * (y - viewport.get(1+vPos))) / deltaY,
+                    0);
+    gl.glScalef(viewport.get(2) / deltaX, viewport.get(3) / deltaY, 1.0f);
+  }
+
+  /**
+   * Method gluPickMatrix
+   * 
+   * @param x
+   * @param y
+   * @param deltaX
+   * @param deltaY
+   * @param viewport
+   * @param viewport_offset
+   */
+  public void gluPickMatrix(GLMatrixFunc gl,
+                            float x,
+                            float y,
+                            float deltaX,
+                            float deltaY,
+                            int[] viewport,
+                            int viewport_offset) {
+    if (deltaX <= 0 || deltaY <= 0) {
+      return;
+    }
+
+    /* Translate and scale the picked region to the entire window */
+    gl.glTranslatef((viewport[2+viewport_offset] - 2 * (x - viewport[0+viewport_offset])) / deltaX,
+                    (viewport[3+viewport_offset] - 2 * (y - viewport[1+viewport_offset])) / deltaY,
+                    0);
+    gl.glScalef(viewport[2+viewport_offset] / deltaX, viewport[3+viewport_offset] / deltaY, 1.0f);
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/SystemUtil.java.javame_cdc_fp b/src/jogl/classes/com/jogamp/opengl/impl/SystemUtil.java.javame_cdc_fp
new file mode 100644
index 000000000..f686bea92
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/SystemUtil.java.javame_cdc_fp
@@ -0,0 +1,10 @@
+package com.jogamp.opengl.impl;
+
+public class SystemUtil {
+
+    /** Wrapper for System.getenv(), which doesn't work on platforms
+        earlier than JDK 5 */
+    public static String getenv(String variableName) {
+        return null;
+    }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/SystemUtil.java.javase b/src/jogl/classes/com/jogamp/opengl/impl/SystemUtil.java.javase
new file mode 100644
index 000000000..dbb717a32
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/SystemUtil.java.javase
@@ -0,0 +1,18 @@
+package com.jogamp.opengl.impl;
+
+public class SystemUtil {
+
+    private static volatile boolean getenvSupported = true;
+    /** Wrapper for System.getenv(), which doesn't work on platforms
+        earlier than JDK 5 */
+    public static String getenv(String variableName) {
+        if (getenvSupported) {
+            try {
+                return System.getenv(variableName);
+            } catch (Error e) {
+                getenvSupported = false;
+            }
+        }
+        return null;
+    }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/ThreadingImpl.java b/src/jogl/classes/com/jogamp/opengl/impl/ThreadingImpl.java
new file mode 100644
index 000000000..2576c8ae8
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/ThreadingImpl.java
@@ -0,0 +1,234 @@
+/*
+ * Copyright (c) 2009 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.
+ * 
+ */
+
+package com.jogamp.opengl.impl;
+
+import java.lang.reflect.InvocationTargetException;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+
+import javax.media.nativewindow.NativeWindowFactory;
+import com.sun.nativewindow.impl.NWReflection;
+import javax.media.opengl.GLException;
+
+/** Implementation of the {@link javax.media.opengl.Threading} class. */
+
+public class ThreadingImpl {
+    public static final int AWT    = 1;
+    public static final int WORKER = 2;
+
+    protected static final boolean DEBUG = Debug.debug("Threading");
+
+    private static boolean singleThreaded = true;
+    private static int mode;
+    private static boolean hasAWT;
+    // We need to know whether we're running on X11 platforms to change
+    // our behavior when the Java2D/JOGL bridge is active
+    private static boolean _isX11;
+
+    private static final ThreadingPlugin threadingPlugin;
+  
+    static {
+        Object threadingPluginTmp =
+            AccessController.doPrivileged(new PrivilegedAction() {
+                    public Object run() {
+                        String workaround = Debug.getProperty("jogl.1thread", true);
+                        // Default to using the AWT thread on all platforms except
+                        // Windows. On OS X there is instability apparently due to
+                        // using the JAWT on non-AWT threads. On X11 platforms there
+                        // are potential deadlocks which can be caused if the AWT
+                        // EventQueue thread hands work off to the GLWorkerThread
+                        // while holding the AWT lock. The optimization of
+                        // makeCurrent / release calls isn't worth these stability
+                        // problems.
+                        hasAWT = NWReflection.isClassAvailable("java.awt.Canvas") &&
+                            NWReflection.isClassAvailable("javax.media.opengl.awt.GLCanvas");
+
+                        String osType = NativeWindowFactory.getNativeWindowType(false);
+                        _isX11 = NativeWindowFactory.TYPE_X11.equals(osType);
+                        // boolean isWindows = NativeWindowFactory.TYPE_WINDOWS.equals(osType);
+
+                        // int defaultMode = (isWindows ? WORKER : ( hasAWT ? AWT : WORKER ) );
+                        int defaultMode = ( hasAWT ? AWT : WORKER );
+
+                        mode = defaultMode;
+                        if (workaround != null) {
+                            workaround = workaround.toLowerCase();
+                            if (workaround.equals("true") ||
+                                workaround.equals("auto")) {
+                                // Nothing to do; singleThreaded and mode already set up
+                            } else if (workaround.equals("worker")) {
+                                singleThreaded = true;
+                                mode = WORKER;
+                            } else if (workaround.equals("awt")) {
+                                singleThreaded = true;
+                                mode = AWT;
+                            } else {
+                                singleThreaded = false;
+                            }
+                        }
+                        printWorkaroundNotice();
+
+                        Object threadingPluginObj=null;
+                        // try to fetch the AWTThreadingPlugin
+                        try {
+                            threadingPluginObj = NWReflection.createInstance("com.jogamp.opengl.impl.awt.AWTThreadingPlugin");
+                        } catch (Throwable t) { }
+                        return threadingPluginObj;
+                    }
+                });
+        threadingPlugin = (ThreadingPlugin) threadingPluginTmp;
+        if(DEBUG) {
+            System.err.println("Threading: hasAWT "+hasAWT+", mode "+((mode==AWT)?"AWT":"WORKER")+", plugin "+threadingPlugin);
+        }
+    }
+
+    /** No reason to ever instantiate this class */
+    private ThreadingImpl() {}
+
+    public static boolean isX11() { return _isX11; }
+    public static int getMode() { return mode; }
+
+    /** If an implementation of the javax.media.opengl APIs offers a 
+        multithreading option but the default behavior is single-threading, 
+        this API provides a mechanism for end users to disable single-threading 
+        in this implementation.  Users are strongly discouraged from
+        calling this method unless they are aware of all of the
+        consequences and are prepared to enforce some amount of
+        threading restrictions in their applications. Disabling
+        single-threading, for example, may have unintended consequences
+        on GLAutoDrawable implementations such as GLCanvas, GLJPanel and
+        GLPbuffer. Currently there is no supported way to re-enable it
+        once disabled, partly to discourage careless use of this
+        method. This method should be called as early as possible in an
+        application. */ 
+    public static void disableSingleThreading() {
+        singleThreaded = false;
+        if (Debug.verbose()) {
+            System.err.println("Application forced disabling of single-threading of javax.media.opengl implementation");
+        }
+    }
+
+    /** Indicates whether OpenGL work is being automatically forced to a
+        single thread in this implementation. */
+    public static boolean isSingleThreaded() {
+        return singleThreaded;
+    }
+
+    /** Indicates whether the current thread is the single thread on
+        which this implementation of the javax.media.opengl APIs
+        performs all of its OpenGL-related work. This method should only
+        be called if the single-thread model is in effect. */
+    public static boolean isOpenGLThread() throws GLException {
+        if (!isSingleThreaded()) {
+            throw new GLException("Should only call this in single-threaded mode");
+        }
+
+        if(null!=threadingPlugin) {
+            return threadingPlugin.isOpenGLThread();
+        }
+
+        switch (mode) {
+        case AWT:
+            return true;
+        case WORKER:
+            return GLWorkerThread.isWorkerThread();
+        default:
+            throw new InternalError("Illegal single-threading mode " + mode);
+        }
+    }
+
+    /** Executes the passed Runnable on the single thread used for all
+        OpenGL work in this javax.media.opengl API implementation. It is
+        not specified exactly which thread is used for this
+        purpose. This method should only be called if the single-thread
+        model is in use and if the current thread is not the OpenGL
+        thread (i.e., if <code>isOpenGLThread()</code> returns
+        false). It is up to the end user to check to see whether the
+        current thread is the OpenGL thread and either execute the
+        Runnable directly or perform the work inside it. */
+    public static void invokeOnOpenGLThread(Runnable r) throws GLException {
+        if (!isSingleThreaded()) {
+            throw new GLException ("Should only call this in single-threaded mode");
+        }
+
+        if (isOpenGLThread()) {
+            throw new GLException ("Should only call this from other threads than the OpenGL thread");
+        }    
+
+        if(null!=threadingPlugin) {
+            threadingPlugin.invokeOnOpenGLThread(r);
+            return;
+        }
+
+        switch (mode) {
+            case AWT:
+                r.run();
+                break;
+
+            case WORKER:
+                if (!GLWorkerThread.isStarted()) {
+                    synchronized (GLWorkerThread.class) {
+                        if (!GLWorkerThread.isStarted()) {
+                            GLWorkerThread.start();
+                        }
+                    }
+                }
+                try {
+                    GLWorkerThread.invokeAndWait(r);
+                } catch (InvocationTargetException e) {
+                    throw new GLException(e.getTargetException());
+                } catch (InterruptedException e) {
+                    throw new GLException(e);
+                }
+                break;
+
+            default:
+                throw new InternalError("Illegal single-threading mode " + mode);
+        }
+    }
+
+    /** This is a workaround for AWT-related deadlocks which only seem
+        to show up in the context of applets */
+    public static boolean isAWTMode() {
+        return (mode == AWT);
+    }
+
+    private static void printWorkaroundNotice() {
+        if (singleThreaded && Debug.verbose()) {
+            System.err.println("Using " +
+                               (mode == AWT ? "AWT" : "OpenGL worker") +
+                               " thread for performing OpenGL work in javax.media.opengl implementation");
+        }
+    }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/ThreadingPlugin.java b/src/jogl/classes/com/jogamp/opengl/impl/ThreadingPlugin.java
new file mode 100644
index 000000000..37e4aac70
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/ThreadingPlugin.java
@@ -0,0 +1,62 @@
+/*
+ * 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 com.jogamp.opengl.impl;
+
+import javax.media.opengl.*;
+
+public interface ThreadingPlugin {
+  /** Indicates whether the current thread is the single thread on
+      which this implementation of the javax.media.opengl APIs
+      performs all of its OpenGL-related work. This method should only
+      be called if the single-thread model is in effect. */
+  public boolean isOpenGLThread() throws GLException;
+
+  /** Executes the passed Runnable on the single thread used for all
+      OpenGL work in this javax.media.opengl API implementation. It is
+      not specified exactly which thread is used for this
+      purpose. This method should only be called if the single-thread
+      model is in use and if the current thread is not the OpenGL
+      thread (i.e., if <code>isOpenGLThread()</code> returns
+      false). It is up to the end user to check to see whether the
+      current thread is the OpenGL thread and either execute the
+      Runnable directly or perform the work inside it. */
+  public void invokeOnOpenGLThread(Runnable r) throws GLException;
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/awt/AWTThreadingPlugin.java b/src/jogl/classes/com/jogamp/opengl/impl/awt/AWTThreadingPlugin.java
new file mode 100755
index 000000000..07bf2f2db
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/awt/AWTThreadingPlugin.java
@@ -0,0 +1,129 @@
+/*
+ * 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 com.jogamp.opengl.impl.awt;
+
+import javax.media.opengl.*;
+
+import java.awt.event.*;
+
+import java.awt.EventQueue;
+import java.lang.reflect.InvocationTargetException;
+
+import com.jogamp.opengl.impl.*;
+
+public class AWTThreadingPlugin implements ThreadingPlugin {
+
+  public AWTThreadingPlugin() {}
+
+  public boolean isOpenGLThread() throws GLException {
+    switch (ThreadingImpl.getMode()) {
+      case ThreadingImpl.AWT:
+        if (Java2D.isOGLPipelineActive()) {
+          // FIXME: ideally only the QFT would be considered to be the
+          // "OpenGL thread", but we can not currently run all of
+          // JOGL's OpenGL work on that thread. See the FIXME in
+          // invokeOnOpenGLThread.
+          return (Java2D.isQueueFlusherThread() ||
+                  (ThreadingImpl.isX11() && EventQueue.isDispatchThread()));
+        } else {
+          return EventQueue.isDispatchThread();
+        }
+      case ThreadingImpl.WORKER:
+        if (Java2D.isOGLPipelineActive()) {
+          // FIXME: ideally only the QFT would be considered to be the
+          // "OpenGL thread", but we can not currently run all of
+          // JOGL's OpenGL work on that thread. See the FIXME in
+          // invokeOnOpenGLThread.
+          return (Java2D.isQueueFlusherThread() ||
+                  (ThreadingImpl.isX11() && GLWorkerThread.isWorkerThread()));
+        } else {
+          return GLWorkerThread.isWorkerThread();
+        }
+      default:
+        throw new InternalError("Illegal single-threading mode " + ThreadingImpl.getMode());
+    }
+  }
+
+  public void invokeOnOpenGLThread(Runnable r) throws GLException {
+    switch (ThreadingImpl.getMode()) {
+      case ThreadingImpl.AWT:
+        // FIXME: ideally should run all OpenGL work on the Java2D QFT
+        // thread when it's enabled, but unfortunately there are
+        // deadlock issues on X11 platforms when making our
+        // heavyweight OpenGL contexts current on the QFT because we
+        // perform the JAWT lock inside the makeCurrent()
+        // implementation, which attempts to grab the AWT lock on the
+        // QFT which is not allowed. For now, on X11 platforms,
+        // continue to perform this work on the EDT.
+        if (Java2D.isOGLPipelineActive() && !ThreadingImpl.isX11()) {
+          Java2D.invokeWithOGLContextCurrent(null, r);
+        } else {
+          try {
+            EventQueue.invokeAndWait(r);
+          } catch (InvocationTargetException e) {
+            throw new GLException(e.getTargetException());
+          } catch (InterruptedException e) {
+            throw new GLException(e);
+          }
+        }
+        break;
+
+      case ThreadingImpl.WORKER:
+        if (!GLWorkerThread.isStarted()) {
+          synchronized (GLWorkerThread.class) {
+            if (!GLWorkerThread.isStarted()) {
+              GLWorkerThread.start();
+            }
+          }
+        }
+        try {
+          GLWorkerThread.invokeAndWait(r);
+        } catch (InvocationTargetException e) {
+          throw new GLException(e.getTargetException());
+        } catch (InterruptedException e) {
+          throw new GLException(e);
+        }
+        break;
+
+      default:
+        throw new InternalError("Illegal single-threading mode " + ThreadingImpl.getMode());
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/awt/AWTUtil.java b/src/jogl/classes/com/jogamp/opengl/impl/awt/AWTUtil.java
new file mode 100644
index 000000000..306f6cee7
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/awt/AWTUtil.java
@@ -0,0 +1,125 @@
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.awt;
+
+import com.sun.nativewindow.impl.jawt.*;
+
+import com.jogamp.opengl.impl.*;
+
+import javax.media.opengl.*;
+
+import java.lang.reflect.*;
+import java.awt.GraphicsEnvironment;
+
+public class AWTUtil {
+  // See whether we're running in headless mode
+  private static boolean headlessMode;
+  private static Class j2dClazz = null;
+  private static Method isOGLPipelineActive = null;
+  private static Method isQueueFlusherThread = null;
+  private static boolean j2dOk = false;
+
+  static {
+    lockedToolkit = false;
+    headlessMode = GraphicsEnvironment.isHeadless();
+    if(!headlessMode) {
+        try {
+            j2dClazz = Class.forName("com.jogamp.opengl.impl.awt.Java2D");
+            isOGLPipelineActive = j2dClazz.getMethod("isOGLPipelineActive", null);
+            isQueueFlusherThread = j2dClazz.getMethod("isQueueFlusherThread", null);
+            j2dOk = true;
+        } catch (Exception e) {}
+    }
+  }
+
+  private static boolean lockedToolkit;
+
+  public static synchronized void lockToolkit() throws GLException {
+    if (lockedToolkit) {
+      throw new GLException("Toolkit already locked");
+    }
+    lockedToolkit = true;
+
+    if (headlessMode) {
+      // Workaround for running (to some degree) in headless
+      // environments but still supporting rendering via pbuffers
+      // For full correctness, would need to implement a Lock class
+      return;
+    }
+
+    if(j2dOk) {
+      try {
+        if( !((Boolean)isOGLPipelineActive.invoke(null, null)).booleanValue() ||
+            !((Boolean)isQueueFlusherThread.invoke(null, null)).booleanValue() ) {
+          JAWTUtil.lockToolkit();
+        }
+      } catch (Exception e) { j2dOk=false; }
+    } 
+    if(!j2dOk) {
+      JAWTUtil.lockToolkit();
+    }
+  }
+
+  public static synchronized void unlockToolkit() {
+    if (lockedToolkit) {
+        lockedToolkit = false;
+        if (headlessMode) {
+          // Workaround for running (to some degree) in headless
+          // environments but still supporting rendering via pbuffers
+          // For full correctness, would need to implement a Lock class
+          return;
+        }
+
+        if(j2dOk) {
+          try {
+            if( !((Boolean)isOGLPipelineActive.invoke(null, null)).booleanValue() ||
+                !((Boolean)isQueueFlusherThread.invoke(null, null)).booleanValue() ) {
+              JAWTUtil.unlockToolkit();
+            }
+          } catch (Exception e) { j2dOk=false; }
+        } 
+        if(!j2dOk) {
+          JAWTUtil.unlockToolkit();
+        }
+    }
+  }
+
+  public static boolean isToolkitLocked() {
+    return JAWTUtil.isToolkitLocked();
+  }
+
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/awt/Java2D.java b/src/jogl/classes/com/jogamp/opengl/impl/awt/Java2D.java
new file mode 100755
index 000000000..b871c66a7
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/awt/Java2D.java
@@ -0,0 +1,569 @@
+/*
+ * Copyright (c) 2003-2005 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 com.jogamp.opengl.impl.awt;
+
+import com.jogamp.opengl.impl.*;
+
+import java.awt.*;
+import java.awt.image.*;
+import java.lang.reflect.*;
+import java.security.*;
+
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.awt.*;
+
+/** Defines integration with the Java2D OpenGL pipeline. This
+    integration is only supported in 1.6 and is highly experimental. */
+
+public class Java2D {
+  private static boolean DEBUG = Debug.debug("Java2D");
+  private static boolean VERBOSE = Debug.verbose();
+  private static boolean isHeadless;
+  private static boolean isOGLPipelineActive;
+  private static Method invokeWithOGLContextCurrentMethod;
+  private static Method isQueueFlusherThreadMethod;
+  private static Method getOGLViewportMethod;
+  private static Method getOGLScissorBoxMethod;
+  private static Method getOGLSurfaceIdentifierMethod;
+  // This one is currently optional and is only in very recent Mustang builds
+  private static Method getOGLTextureTypeMethod;
+
+  // The following methods and fields are needed for proper support of
+  // Frame Buffer Objects in the Java2D/OpenGL pipeline
+  // (-Dsun.java2d.opengl.fbobject=true)
+  private static boolean fbObjectSupportInitialized;
+  private static Method invokeWithOGLSharedContextCurrentMethod;
+  private static Method getOGLSurfaceTypeMethod;
+
+  // Publicly-visible constants for OpenGL surface types
+  public static final int UNDEFINED       = getOGLUtilitiesIntField("UNDEFINED");
+  public static final int WINDOW          = getOGLUtilitiesIntField("WINDOW");
+  public static final int PBUFFER         = getOGLUtilitiesIntField("PBUFFER");
+  public static final int TEXTURE         = getOGLUtilitiesIntField("TEXTURE");
+  public static final int FLIP_BACKBUFFER = getOGLUtilitiesIntField("FLIP_BACKBUFFER");
+  public static final int FBOBJECT        = getOGLUtilitiesIntField("FBOBJECT");
+
+  // If FBOs are enabled in the Java2D/OpenGL pipeline, all contexts
+  // created by JOGL must share textures and display lists with the
+  // Java2D contexts in order to access the frame buffer object for
+  // potential rendering, and to simultaneously support sharing of
+  // textures and display lists with one another. Java2D has the
+  // notion of a single shared context with which all other contexts
+  // (on the same display device?) share textures and display lists;
+  // this is an approximation to that notion which will be refined
+  // later.
+  private static boolean initializedJ2DFBOShareContext;
+  private static GLContext j2dFBOShareContext;
+
+  // Accessors for new methods in sun.java2d.opengl.CGLSurfaceData
+  // class on OS X for enabling bridge
+  //  public static long    createOGLContextOnSurface(Graphics g, long ctx);
+  //  public static boolean makeOGLContextCurrentOnSurface(Graphics g, long ctx);
+  //  public static void    destroyOGLContext(long ctx);
+  private static Method createOGLContextOnSurfaceMethod;
+  private static Method makeOGLContextCurrentOnSurfaceMethod;
+  private static Method destroyOGLContextMethod;
+
+  static {
+    AccessController.doPrivileged(new PrivilegedAction() {
+        public Object run() {
+          if (DEBUG && VERBOSE) {
+            System.err.println("Checking for Java2D/OpenGL support");
+          }
+          try {
+            isHeadless = true;
+            // Figure out whether the default graphics configuration is an
+            // OpenGL graphics configuration
+            GraphicsConfiguration cfg =
+              GraphicsEnvironment.getLocalGraphicsEnvironment().
+              getDefaultScreenDevice().
+              getDefaultConfiguration();
+            // If we get here, we aren't running in headless mode
+            isHeadless = false;
+            String name = cfg.getClass().getName();
+            if (DEBUG && VERBOSE) {
+              System.err.println("Java2D support: default GraphicsConfiguration = " + name);
+            }
+            isOGLPipelineActive = (name.startsWith("sun.java2d.opengl"));
+
+            if (isOGLPipelineActive) {
+              try {
+                // Try to get methods we need to integrate
+                Class utils = Class.forName("sun.java2d.opengl.OGLUtilities");
+                invokeWithOGLContextCurrentMethod = utils.getDeclaredMethod("invokeWithOGLContextCurrent",
+                                                                            new Class[] {
+                                                                              Graphics.class,
+                                                                              Runnable.class
+                                                                            });
+                invokeWithOGLContextCurrentMethod.setAccessible(true);
+
+                isQueueFlusherThreadMethod = utils.getDeclaredMethod("isQueueFlusherThread",
+                                                                     new Class[] {});
+                isQueueFlusherThreadMethod.setAccessible(true);
+
+                getOGLViewportMethod = utils.getDeclaredMethod("getOGLViewport",
+                                                               new Class[] {
+                                                                 Graphics.class,
+                                                                 Integer.TYPE,
+                                                                 Integer.TYPE
+                                                               });
+                getOGLViewportMethod.setAccessible(true);
+
+                getOGLScissorBoxMethod = utils.getDeclaredMethod("getOGLScissorBox",
+                                                                 new Class[] {
+                                                                   Graphics.class
+                                                                 });
+                getOGLScissorBoxMethod.setAccessible(true);
+
+                getOGLSurfaceIdentifierMethod = utils.getDeclaredMethod("getOGLSurfaceIdentifier",
+                                                                        new Class[] {
+                                                                          Graphics.class
+                                                                        });
+                getOGLSurfaceIdentifierMethod.setAccessible(true);
+
+                // Try to get additional methods required for proper FBO support
+                fbObjectSupportInitialized = true;
+                try {
+                  invokeWithOGLSharedContextCurrentMethod = utils.getDeclaredMethod("invokeWithOGLSharedContextCurrent",
+                                                                                    new Class[] {
+                                                                                      GraphicsConfiguration.class,
+                                                                                      Runnable.class
+                                                                                    });
+                  invokeWithOGLSharedContextCurrentMethod.setAccessible(true);
+
+                  getOGLSurfaceTypeMethod = utils.getDeclaredMethod("getOGLSurfaceType",
+                                                                    new Class[] {
+                                                                      Graphics.class
+                                                                    });
+                  getOGLSurfaceTypeMethod.setAccessible(true);
+                } catch (Exception e) {
+                  fbObjectSupportInitialized = false;
+                  if (DEBUG && VERBOSE) {
+                    e.printStackTrace();
+                    System.err.println("Disabling Java2D/JOGL FBO support");
+                  }
+                }
+
+                // Try to get an additional method for FBO support in recent Mustang builds
+                try {
+                  getOGLTextureTypeMethod = utils.getDeclaredMethod("getOGLTextureType",
+                                                                    new Class[] {
+                                                                      Graphics.class
+                                                                    });
+                  getOGLTextureTypeMethod.setAccessible(true);
+                } catch (Exception e) {
+                  if (DEBUG && VERBOSE) {
+                    e.printStackTrace();
+                    System.err.println("GL_ARB_texture_rectangle FBO support disabled");
+                  }
+                }
+
+                // Try to set up APIs for enabling the bridge on OS X,
+                // where it isn't possible to create generalized
+                // external GLDrawables
+                Class cglSurfaceData = null;
+                try {
+                  cglSurfaceData = Class.forName("sun.java2d.opengl.CGLSurfaceData");
+                } catch (Exception e) {
+                  if (DEBUG && VERBOSE) {
+                    e.printStackTrace();
+                    System.err.println("Unable to find class sun.java2d.opengl.CGLSurfaceData for OS X");
+                  }
+                }
+                if (cglSurfaceData != null) {
+                  // FIXME: for now, assume that FBO support is not enabled on OS X
+                  fbObjectSupportInitialized = false;
+
+                  // We need to find these methods in order to make the bridge work on OS X
+                  createOGLContextOnSurfaceMethod = cglSurfaceData.getDeclaredMethod("createOGLContextOnSurface",
+                                                                                     new Class[] {
+                                                                                       Graphics.class,
+                                                                                       Long.TYPE
+                                                                                     });
+                  createOGLContextOnSurfaceMethod.setAccessible(true);
+
+                  makeOGLContextCurrentOnSurfaceMethod = cglSurfaceData.getDeclaredMethod("makeOGLContextCurrentOnSurface",
+                                                                                          new Class[] {
+                                                                                            Graphics.class,
+                                                                                            Long.TYPE
+                                                                                          });
+                  makeOGLContextCurrentOnSurfaceMethod.setAccessible(true);
+
+                  destroyOGLContextMethod = cglSurfaceData.getDeclaredMethod("destroyOGLContext",
+                                                                             new Class[] {
+                                                                               Long.TYPE
+                                                                             });
+                  destroyOGLContextMethod.setAccessible(true);
+                }
+              } catch (Exception e) {
+                if (DEBUG && VERBOSE) {
+                  e.printStackTrace();
+                  System.err.println("Disabling Java2D/JOGL integration");
+                }
+                isOGLPipelineActive = false;
+              }
+            }
+          } catch (HeadlessException e) {
+            // The AWT is running in headless mode, so the Java 2D / JOGL bridge is clearly disabled
+          }
+
+          if (DEBUG) {
+            System.err.println("JOGL/Java2D integration " + (isOGLPipelineActive ? "enabled" : "disabled"));
+          }
+          return null;
+        }
+      });
+  }
+
+  public static boolean isOGLPipelineActive() {
+    return isOGLPipelineActive;
+  }
+
+  public static boolean isFBOEnabled() {
+    return fbObjectSupportInitialized;
+  }
+
+  public static boolean isQueueFlusherThread() {
+    checkActive();
+
+    try {
+      return ((Boolean) isQueueFlusherThreadMethod.invoke(null, new Object[] {})).booleanValue();
+    } catch (InvocationTargetException e) {
+      throw new GLException(e.getTargetException());
+    } catch (Exception e) {
+      throw (InternalError) new InternalError().initCause(e);
+    }
+  }
+  
+  /** Makes current the OpenGL context associated with the passed
+      Graphics object and runs the given Runnable on the Queue
+      Flushing Thread in one atomic action. */
+  public static void invokeWithOGLContextCurrent(Graphics g, Runnable r) throws GLException {
+    checkActive();
+
+    try {
+      // FIXME: this may need adjustment
+      // This seems to be needed in many applications which don't
+      // initialize an OpenGL context before this and which would
+      // otherwise cause initFBOShareContext to be called from the
+      // Queue Flusher Thread, which isn't allowed
+      initFBOShareContext(GraphicsEnvironment.
+                          getLocalGraphicsEnvironment().
+                          getDefaultScreenDevice());
+
+      AWTUtil.lockToolkit();
+      try {
+        invokeWithOGLContextCurrentMethod.invoke(null, new Object[] {g, r});
+      } finally {
+        AWTUtil.unlockToolkit();
+      }
+    } catch (InvocationTargetException e) {
+      throw new GLException(e.getTargetException());
+    } catch (Exception e) {
+      throw (InternalError) new InternalError().initCause(e);
+    }
+  }
+
+  /** Makes current the "shared" OpenGL context associated with the
+      given GraphicsConfiguration object, allowing JOGL to share
+      server-side OpenGL objects like textures and display lists with
+      this context when necessary. This is needed when Java2D's FBO
+      support is enabled, because in order to render into that FBO,
+      JOGL must share textures and display lists with it. Returns
+      false if the passed GraphicsConfiguration was not an OpenGL
+      GraphicsConfiguration. */
+  public static boolean invokeWithOGLSharedContextCurrent(GraphicsConfiguration g, Runnable r) throws GLException {
+    checkActive();
+
+    try {
+      AWTUtil.lockToolkit();
+      try {
+        return ((Boolean) invokeWithOGLSharedContextCurrentMethod.invoke(null, new Object[] {g, r})).booleanValue();
+      } finally {
+        AWTUtil.unlockToolkit();
+      }
+    } catch (InvocationTargetException e) {
+      throw new GLException(e.getTargetException());
+    } catch (Exception e) {
+      throw (InternalError) new InternalError().initCause(e);
+    }
+  }
+
+  /** Returns the OpenGL viewport associated with the given Graphics
+      object, assuming that the Graphics object is associated with a
+      component of the specified width and height. The user should
+      call glViewport() with the returned rectangle's bounds in order
+      to get correct rendering results. Should only be called from the
+      Queue Flusher Thread. */
+  public static Rectangle getOGLViewport(Graphics g,
+                                         int componentWidth,
+                                         int componentHeight) {
+    checkActive();
+
+    try {
+      return (Rectangle) getOGLViewportMethod.invoke(null, new Object[] {g,
+                                                                         new Integer(componentWidth),
+                                                                         new Integer(componentHeight)});
+    } catch (InvocationTargetException e) {
+      throw new GLException(e.getTargetException());
+    } catch (Exception e) {
+      throw (InternalError) new InternalError().initCause(e);
+    }
+  }
+
+  /** Returns the OpenGL scissor region associated with the given
+      Graphics object, taking into account all clipping regions, etc.
+      To avoid destroying Java2D's previous rendering results, this
+      method should be called and the resulting rectangle's bounds
+      passed to a call to glScissor(). Should only be called from the
+      Queue Flusher Thread. */
+  public static Rectangle getOGLScissorBox(Graphics g) {
+    checkActive();
+
+    try {
+      return (Rectangle) getOGLScissorBoxMethod.invoke(null, new Object[] {g});
+    } catch (InvocationTargetException e) {
+      throw new GLException(e.getTargetException());
+    } catch (Exception e) {
+      throw (InternalError) new InternalError().initCause(e);
+    }
+  }
+
+  /** Returns an opaque "surface identifier" associated with the given
+      Graphics object. If this changes from invocation to invocation,
+      the underlying OpenGL drawable for the Graphics object has
+      changed and a new external GLDrawable and GLContext should be
+      created (and the old ones destroyed). Should only be called from
+      the Queue Flusher Thread.*/
+  public static Object getOGLSurfaceIdentifier(Graphics g) {
+    checkActive();
+
+    try {
+      return getOGLSurfaceIdentifierMethod.invoke(null, new Object[] {g});
+    } catch (InvocationTargetException e) {
+      throw new GLException(e.getTargetException());
+    } catch (Exception e) {
+      throw (InternalError) new InternalError().initCause(e);
+    }
+  }
+
+  /** Returns the underlying surface type for the given Graphics
+      object. This indicates, in particular, whether Java2D is
+      currently rendering into a pbuffer or FBO. */
+  public static int getOGLSurfaceType(Graphics g) {
+    checkActive();
+
+    try {
+      // FIXME: fallback path for pre-b73 (?) Mustang builds -- remove
+      // once fbobject support is in OGLUtilities
+      if (!fbObjectSupportInitialized) {
+        return 0;
+      }
+
+      return ((Integer) getOGLSurfaceTypeMethod.invoke(null, new Object[] { g })).intValue();
+    } catch (InvocationTargetException e) {
+      throw new GLException(e.getTargetException());
+    } catch (Exception e) {
+      throw (InternalError) new InternalError().initCause(e);
+    }
+  }
+
+  /** Returns the underlying texture target of the given Graphics
+      object assuming it is rendering to an FBO. Returns either
+      GL_TEXTURE_2D or GL_TEXTURE_RECTANGLE_ARB. */
+  public static int getOGLTextureType(Graphics g) {
+    checkActive();
+
+    if (getOGLTextureTypeMethod == null) {
+      return GL.GL_TEXTURE_2D;
+    }
+
+    try {
+      return ((Integer) getOGLTextureTypeMethod.invoke(null, new Object[] { g })).intValue();
+    } catch (InvocationTargetException e) {
+      throw new GLException(e.getTargetException());
+    } catch (Exception e) {
+      throw (InternalError) new InternalError().initCause(e);
+    }
+  }
+
+  /** Returns either the given GLContext or a substitute one with
+      which clients should share textures and display lists. Needed
+      when the Java2D/OpenGL pipeline is active and FBOs are being
+      used for rendering. FIXME: may need to alter the API in the
+      future to indicate which GraphicsDevice the source context is
+      associated with. */
+  public static GLContext filterShareContext(GLContext shareContext) {
+    if (isHeadless)
+      return shareContext;
+
+    // FIXME: this may need adjustment
+    initFBOShareContext(GraphicsEnvironment.
+                        getLocalGraphicsEnvironment().
+                        getDefaultScreenDevice());
+    if (j2dFBOShareContext != null) {
+      return j2dFBOShareContext;
+    }
+    return shareContext;
+  }
+
+  /** Returns the GLContext associated with the Java2D "share
+      context", with which all contexts created by JOGL must share
+      textures and display lists when the FBO option is enabled for
+      the Java2D/OpenGL pipeline. */
+  public static GLContext getShareContext(GraphicsDevice device) {
+    initFBOShareContext(device);
+    // FIXME: for full generality probably need to have multiple of
+    // these, one per GraphicsConfiguration seen?
+    return j2dFBOShareContext;
+  }
+
+  //----------------------------------------------------------------------
+  // Mac OS X-specific methods
+  //
+
+  /** (Mac OS X-specific) Creates a new OpenGL context on the surface
+      associated with the given Graphics object, sharing textures and
+      display lists with the specified (CGLContextObj) share context. */
+  public static long createOGLContextOnSurface(Graphics g, long shareCtx) {
+    checkActive();
+
+    try {
+      return ((Long) createOGLContextOnSurfaceMethod.invoke(null, new Object[] { g, new Long(shareCtx) })).longValue();
+    } catch (InvocationTargetException e) {
+      throw new GLException(e.getTargetException());
+    } catch (Exception e) {
+      throw (InternalError) new InternalError().initCause(e);
+    }
+  }
+
+  /** (Mac OS X-specific) Makes the given OpenGL context current on
+      the surface associated with the given Graphics object. */
+  public static boolean makeOGLContextCurrentOnSurface(Graphics g, long ctx) {
+    checkActive();
+
+    try {
+      return ((Boolean) makeOGLContextCurrentOnSurfaceMethod.invoke(null, new Object[] { g, new Long(ctx) })).booleanValue();
+    } catch (InvocationTargetException e) {
+      throw new GLException(e.getTargetException());
+    } catch (Exception e) {
+      throw (InternalError) new InternalError().initCause(e);
+    }
+  }
+
+  /** (Mac OS X-specific) Destroys the given OpenGL context. */
+  public static void destroyOGLContext(long ctx) {
+    checkActive();
+
+    try {
+      destroyOGLContextMethod.invoke(null, new Object[] { new Long(ctx) });
+    } catch (InvocationTargetException e) {
+      throw new GLException(e.getTargetException());
+    } catch (Exception e) {
+      throw (InternalError) new InternalError().initCause(e);
+    }
+  }
+
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  //
+
+  private static void checkActive() {
+    if (!isOGLPipelineActive()) {
+      throw new GLException("Java2D OpenGL pipeline not active (or necessary support not present)");
+    }
+  }
+
+  private static int getOGLUtilitiesIntField(final String name) {
+    Integer i = (Integer) AccessController.doPrivileged(new PrivilegedAction() {
+        public Object run() {
+          try {
+            Class utils = Class.forName("sun.java2d.opengl.OGLUtilities");
+            Field f = utils.getField(name);
+            f.setAccessible(true);
+            return f.get(null);
+          } catch (Exception e) {
+            if (DEBUG && VERBOSE) {
+              e.printStackTrace();
+            }
+            return null;
+          }
+        }
+      });
+    if (i == null)
+      return 0;
+    if (DEBUG && VERBOSE) {
+      System.err.println("OGLUtilities." + name + " = " + i.intValue());
+    }
+    return i.intValue();
+  }
+
+  private static void initFBOShareContext(final GraphicsDevice device) {
+    // Note 1: this must not be done in the static initalizer due to
+    // deadlock problems.
+
+    // Note 2: the first execution of this method must not be from the
+    // Java2D Queue Flusher Thread.
+
+    if (isOGLPipelineActive() &&
+        isFBOEnabled() &&
+        !initializedJ2DFBOShareContext) {
+
+      // FIXME: this technique is probably not adequate in multi-head
+      // situations. Ideally we would keep track of a given share
+      // context on a per-GraphicsConfiguration basis or something
+      // similar rather than keeping one share context in a global
+      // variable.
+      initializedJ2DFBOShareContext = true;
+      if (DEBUG) {
+        System.err.println("Starting initialization of J2D FBO share context");
+      }
+      invokeWithOGLSharedContextCurrent(device.getDefaultConfiguration(), new Runnable() {
+          public void run() {
+            j2dFBOShareContext = GLDrawableFactory.getFactory(GLProfile.getDefault()).createExternalGLContext();
+          }
+        });
+      if (DEBUG) {
+        System.err.println("Ending initialization of J2D FBO share context");
+      }
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/awt/Java2DGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/awt/Java2DGLContext.java
new file mode 100644
index 000000000..07bc54b6a
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/awt/Java2DGLContext.java
@@ -0,0 +1,52 @@
+/*
+ * 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 com.jogamp.opengl.impl.awt;
+
+import com.jogamp.opengl.impl.*;
+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/com/jogamp/opengl/impl/egl/EGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLContext.java
new file mode 100755
index 000000000..42d4588b5
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLContext.java
@@ -0,0 +1,299 @@
+/*
+ * 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 com.jogamp.opengl.impl.egl;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.gluegen.runtime.ProcAddressTable;
+import java.nio.*;
+import java.util.*;
+
+public abstract class EGLContext extends GLContextImpl {
+    private long eglContext;
+    private boolean eglQueryStringInitialized;
+    private boolean eglQueryStringAvailable;
+    private EGLExt eglExt;
+    // Table that holds the addresses of the native C-language entry points for
+    // EGL extension functions.
+    private EGLExtProcAddressTable eglExtProcAddressTable;
+
+    public EGLContext(GLDrawableImpl drawable, GLDrawableImpl drawableRead,
+                      GLContext shareWith) {
+        super(drawable, drawableRead, shareWith);
+    }
+
+    public EGLContext(GLDrawableImpl drawable,
+                      GLContext shareWith) {
+        this(drawable, null, shareWith);
+    }
+
+    public Object getPlatformGLExtensions() {
+      return getEGLExt();
+    }
+
+    public EGLExt getEGLExt() {
+      if (eglExt == null) {
+        eglExt = new EGLExtImpl(this);
+      }
+      return eglExt;
+    }
+
+    public final ProcAddressTable getPlatformExtProcAddressTable() {
+        return eglExtProcAddressTable;
+    }
+
+    public final EGLExtProcAddressTable getEGLExtProcAddressTable() {
+        return eglExtProcAddressTable;
+    }
+
+    protected String mapToRealGLFunctionName(String glFunctionName) {
+        return glFunctionName;
+    }
+
+    protected String mapToRealGLExtensionName(String glExtensionName) {
+        return glExtensionName;
+    }
+
+    public long getContext() {
+        return eglContext;
+    }
+
+    protected int makeCurrentImpl() throws GLException {
+        if(EGL.EGL_NO_DISPLAY==((EGLDrawable)drawable).getDisplay() ) {
+            System.err.println("drawable not properly initialized");
+            return CONTEXT_NOT_CURRENT;
+        }
+        boolean created = false;
+        if (eglContext == 0) {
+            create();
+            if (DEBUG) {
+                System.err.println(getThreadName() + ": !!! Created GL context 0x" +
+                                   Long.toHexString(eglContext) + " for " + getClass().getName());
+            }
+            created = true;
+        }
+        if (EGL.eglGetCurrentContext() != eglContext) {
+            if (!EGL.eglMakeCurrent(((EGLDrawable)drawable).getDisplay(),
+                                    ((EGLDrawable)drawable).getSurface(),
+                                    ((EGLDrawable)drawableRead).getSurface(),
+                                    eglContext)) {
+                throw new GLException("Error making context 0x" +
+                                      Long.toHexString(eglContext) + " current: error code " + EGL.eglGetError());
+            }
+        }
+
+        if (created) {
+            setGLFunctionAvailability(false);
+            return CONTEXT_CURRENT_NEW;
+        }
+        return CONTEXT_CURRENT;
+    }
+
+    protected void releaseImpl() throws GLException {
+      getDrawableImpl().getFactoryImpl().lockToolkit();
+      try {
+          if (!EGL.eglMakeCurrent(((EGLDrawable)drawable).getDisplay(),
+                                  EGL.EGL_NO_SURFACE,
+                                  EGL.EGL_NO_SURFACE,
+                                  EGL.EGL_NO_CONTEXT)) {
+                throw new GLException("Error freeing OpenGL context 0x" +
+                                      Long.toHexString(eglContext) + ": error code " + EGL.eglGetError());
+          }
+      } finally {
+          getDrawableImpl().getFactoryImpl().unlockToolkit();
+      }
+    }
+
+    protected void destroyImpl() throws GLException {
+      getDrawableImpl().getFactoryImpl().lockToolkit();
+      try {
+          if (eglContext != 0) {
+              if (!EGL.eglDestroyContext(((EGLDrawable)drawable).getDisplay(), eglContext)) {
+                  throw new GLException("Error destroying OpenGL context 0x" +
+                                        Long.toHexString(eglContext) + ": error code " + EGL.eglGetError());
+              }
+              eglContext = 0;
+              GLContextShareSet.contextDestroyed(this);
+          }
+      } finally {
+          getDrawableImpl().getFactoryImpl().unlockToolkit();
+      }
+    }
+
+    protected void create() throws GLException {
+        long eglDisplay = ((EGLDrawable)drawable).getDisplay();
+        EGLGraphicsConfiguration config = ((EGLDrawable)drawable).getGraphicsConfiguration();
+        GLProfile glProfile = drawable.getGLProfile();
+        _EGLConfig eglConfig = config.getNativeConfig();
+        long shareWith = EGL.EGL_NO_CONTEXT;
+
+        if (eglDisplay == 0) {
+            throw new GLException("Error: attempted to create an OpenGL context without a display connection");
+        }
+        if (eglConfig == null) {
+            throw new GLException("Error: attempted to create an OpenGL context without a graphics configuration");
+        }
+
+        try {
+            // might be unavailable on EGL < 1.2
+            if(!EGL.eglBindAPI(EGL.EGL_OPENGL_ES_API)) {
+                throw new GLException("eglBindAPI to ES failed , error 0x"+Integer.toHexString(EGL.eglGetError()));
+            }
+        } catch (GLException glex) {
+            if (DEBUG) {
+                glex.printStackTrace();
+            }
+        }
+
+        EGLContext other = (EGLContext) GLContextShareSet.getShareContext(this);
+        if (other != null) {
+            shareWith = other.getContext();
+            if (shareWith == 0) {
+                throw new GLException("GLContextShareSet returned an invalid OpenGL context");
+            }
+        }
+
+        int[] contextAttrs = new int[] {
+                EGL.EGL_CONTEXT_CLIENT_VERSION, -1,
+                EGL.EGL_NONE
+        };
+        if (glProfile.usesNativeGLES2()) {
+            contextAttrs[1] = 2;
+        } else if (glProfile.usesNativeGLES1()) {
+            contextAttrs[1] = 1;
+        } else {
+            throw new GLException("Error creating OpenGL context - invalid GLProfile: "+glProfile);
+        }
+        eglContext = EGL.eglCreateContext(eglDisplay, eglConfig, shareWith, contextAttrs, 0);
+        if (eglContext == 0) {
+            throw new GLException("Error creating OpenGL context: eglDisplay 0x"+Long.toHexString(eglDisplay)+
+                                  ", "+glProfile+", error 0x"+Integer.toHexString(EGL.eglGetError()));
+        }
+        GLContextShareSet.contextCreated(this);
+        if (DEBUG) {
+            System.err.println(getThreadName() + ": !!! Created OpenGL context 0x" +
+                               Long.toHexString(eglContext) + 
+                               ",\n\twrite surface 0x" + Long.toHexString(((EGLDrawable)drawable).getSurface()) +
+                               ",\n\tread  surface 0x" + Long.toHexString(((EGLDrawable)drawableRead).getSurface())+
+                               ",\n\t"+this+
+                               ",\n\tsharing with 0x" + Long.toHexString(shareWith));
+        }
+        if (!EGL.eglMakeCurrent(((EGLDrawable)drawable).getDisplay(),
+                                ((EGLDrawable)drawable).getSurface(),
+                                ((EGLDrawable)drawableRead).getSurface(),
+                                eglContext)) {
+            throw new GLException("Error making context 0x" +
+                                  Long.toHexString(eglContext) + " current: error code " + EGL.eglGetError());
+        }
+        setGLFunctionAvailability(true);
+    }
+
+    public boolean isCreated() {
+        return (eglContext != 0);
+    }
+
+    protected void updateGLProcAddressTable() {
+        if (DEBUG) {
+          System.err.println(getThreadName() + ": !!! Initializing EGL extension address table");
+        }
+        eglQueryStringInitialized = false;
+        eglQueryStringAvailable = false;
+
+        if (eglExtProcAddressTable == null) {
+          // FIXME: cache ProcAddressTables by capability bits so we can
+          // share them among contexts with the same capabilities
+          eglExtProcAddressTable = new EGLExtProcAddressTable();
+        }          
+        resetProcAddressTable(getEGLExtProcAddressTable());
+        super.updateGLProcAddressTable();
+    }
+  
+    public synchronized String getPlatformExtensionsString() {
+        if (!eglQueryStringInitialized) {
+          eglQueryStringAvailable =
+            getDrawableImpl().getDynamicLookupHelper().dynamicLookupFunction("eglQueryString") != 0;
+          eglQueryStringInitialized = true;
+        }
+        if (eglQueryStringAvailable) {
+          GLDrawableFactoryImpl factory = getDrawableImpl().getFactoryImpl();
+          factory.lockToolkit();
+          try {
+            String ret = EGL.eglQueryString(((EGLDrawable)drawable).getDisplay(), 
+                                            EGL.EGL_EXTENSIONS);
+            if (DEBUG) {
+              System.err.println("!!! EGL extensions: " + ret);
+            }
+            return ret;
+          } finally {
+            factory.unlockToolkit();
+          }
+        } else {
+          return "";
+        }
+    }
+
+    protected void setSwapIntervalImpl(int interval) {
+        if (EGL.eglSwapInterval(((EGLDrawable)drawable).getDisplay(), interval)) {
+            currentSwapInterval = interval ;
+        }
+    }
+
+    public abstract void bindPbufferToTexture();
+
+    public abstract void releasePbufferFromTexture();
+
+    //----------------------------------------------------------------------
+    // Currently unimplemented stuff
+    //
+
+    public void copy(GLContext source, int mask) throws GLException {
+        throw new GLException("Not yet implemented");
+    }
+
+
+    public ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3) {
+        throw new GLException("Should not call this");
+    }
+
+    public boolean offscreenImageNeedsVerticalFlip() {
+        throw new GLException("Should not call this");
+    }
+
+    public int getOffscreenContextPixelDataType() {
+        throw new GLException("Should not call this");
+    }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLDrawable.java
new file mode 100755
index 000000000..e48c78301
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLDrawable.java
@@ -0,0 +1,225 @@
+/*
+ * 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 com.jogamp.opengl.impl.egl;
+
+import com.jogamp.opengl.impl.GLDrawableImpl;
+import com.sun.nativewindow.impl.NWReflection;
+import com.jogamp.gluegen.runtime.DynamicLookupHelper;
+
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.egl.*;
+import javax.media.opengl.*;
+
+public abstract class EGLDrawable extends GLDrawableImpl {
+    protected boolean ownEGLDisplay = false; // for destruction
+    protected boolean ownEGLSurface = false; // for destruction
+    private EGLGraphicsConfiguration eglConfig;
+    protected long eglDisplay;
+    protected long eglSurface;
+
+    protected EGLDrawable(EGLDrawableFactory factory,
+                       NativeWindow component) throws GLException {
+        super(factory, component, false);
+        eglSurface=EGL.EGL_NO_SURFACE;
+        eglDisplay=0;
+    }
+
+    public long getDisplay() {
+        return eglDisplay;
+    }
+
+    public long getSurface() {
+        return eglSurface;
+    }
+
+    public EGLGraphicsConfiguration getGraphicsConfiguration() {
+        return eglConfig;
+    }
+
+    public GLCapabilities getChosenGLCapabilities() {
+        return (null==eglConfig)?super.getChosenGLCapabilities():(GLCapabilities)eglConfig.getChosenCapabilities();
+    }
+
+    public abstract GLContext createContext(GLContext shareWith);
+
+    protected abstract long createSurface(long eglDpy, _EGLConfig eglNativeCfg, long surfaceHandle);
+
+    private void recreateSurface() {
+        // create a new EGLSurface ..
+        if(EGL.EGL_NO_SURFACE!=eglSurface) {
+            EGL.eglDestroySurface(eglDisplay, eglSurface);
+        }
+
+        if(DEBUG) {
+            System.err.println("createSurface using eglDisplay 0x"+Long.toHexString(eglDisplay)+", "+eglConfig);
+        }
+
+        eglSurface = createSurface(eglDisplay, eglConfig.getNativeConfig(), component.getSurfaceHandle());
+        if (EGL.EGL_NO_SURFACE==eglSurface) {
+            throw new GLException("Creation of window surface failed: "+eglConfig+", error 0x"+Integer.toHexString(EGL.eglGetError()));
+        }
+
+        if(DEBUG) {
+            System.err.println("setSurface using component: handle 0x"+Long.toHexString(component.getSurfaceHandle())+" -> 0x"+Long.toHexString(eglSurface));
+        }
+    }
+
+    protected void setRealizedImpl() {
+        if (realized) {
+            if ( NativeWindow.LOCK_SURFACE_NOT_READY == lockSurface() ) {
+                throw new GLException("Couldn't lock surface");
+            }
+            // lockSurface() also resolved the window/surface handles
+            try {
+                AbstractGraphicsConfiguration aConfig = component.getGraphicsConfiguration().getNativeGraphicsConfiguration();
+                AbstractGraphicsDevice aDevice = aConfig.getScreen().getDevice();
+                if(aDevice instanceof EGLGraphicsDevice) {
+                    // just fetch the data .. trust but verify ..
+                    eglDisplay = aDevice.getHandle();
+                    if (eglDisplay == EGL.EGL_NO_DISPLAY) {
+                        throw new GLException("Invalid EGL display in EGLGraphicsDevice from "+aDevice);
+                    }
+                    if(aConfig instanceof EGLGraphicsConfiguration) {
+                        eglConfig = (EGLGraphicsConfiguration) aConfig; // done ..
+                        if (null == eglConfig) {
+                            throw new GLException("Null EGLGraphicsConfiguration from "+aConfig);
+                        }
+
+                        int[] tmp = new int[1];
+                        if ( 0 != component.getSurfaceHandle() &&
+                             EGL.eglQuerySurface(eglDisplay, component.getSurfaceHandle(), EGL.EGL_CONFIG_ID, tmp, 0) ) {
+                            // component holds static EGLSurface
+                            eglSurface = component.getSurfaceHandle();
+                            if(DEBUG) {
+                                System.err.println("setSurface re-using component's EGLSurface: handle 0x"+Long.toHexString(eglSurface));
+                            }
+                        } else {
+                            // EGLSurface is ours ..
+                            ownEGLSurface=true;
+                            
+                            eglConfig.updateGraphicsConfiguration();
+
+                            recreateSurface();
+                        }
+                    } else {
+                        throw new GLException("EGLGraphicsDevice hold by non EGLGraphicsConfiguration: "+aConfig);
+                    }
+                } else {
+                    // create a new EGL config ..
+                    ownEGLDisplay=true;
+                    // EGLSurface is ours ..
+                    ownEGLSurface=true;
+
+                    long nDisplay=0;
+                    if( NativeWindowFactory.TYPE_WINDOWS.equals(NativeWindowFactory.getNativeWindowType(false)) ) {
+                        nDisplay = component.getSurfaceHandle(); // don't even ask ..
+                    } else {
+                        nDisplay = aDevice.getHandle(); // 0 == EGL.EGL_DEFAULT_DISPLAY
+                    }
+                    eglDisplay = EGL.eglGetDisplay(nDisplay);
+                    if (eglDisplay == EGL.EGL_NO_DISPLAY) {
+                        if(DEBUG) {
+                            System.err.println("eglDisplay("+Long.toHexString(nDisplay)+" <surfaceHandle>): failed, using EGL_DEFAULT_DISPLAY");
+                        }
+                        nDisplay = EGL.EGL_DEFAULT_DISPLAY;
+                        eglDisplay = EGL.eglGetDisplay(nDisplay);
+                    }
+                    if (eglDisplay == EGL.EGL_NO_DISPLAY) {
+                        throw new GLException("Failed to created EGL display: nhandle 0x"+Long.toHexString(nDisplay)+", "+aDevice+", error 0x"+Integer.toHexString(EGL.eglGetError()));
+                    } else if(DEBUG) {
+                        System.err.println("eglDisplay("+Long.toHexString(nDisplay)+"): 0x"+Long.toHexString(eglDisplay));
+                    }
+                    if (!EGL.eglInitialize(eglDisplay, null, null)) {
+                        throw new GLException("eglInitialize failed"+", error 0x"+Integer.toHexString(EGL.eglGetError()));
+                    }
+                    EGLGraphicsDevice e = new EGLGraphicsDevice(eglDisplay);
+                    DefaultGraphicsScreen s = new DefaultGraphicsScreen(e, aConfig.getScreen().getIndex());
+                    GLCapabilities caps = (GLCapabilities) aConfig.getChosenCapabilities(); // yes, use the already choosen Capabilities (x11,win32,..)
+                    eglConfig = (EGLGraphicsConfiguration) GraphicsConfigurationFactory.getFactory(e).chooseGraphicsConfiguration(caps, null, s);
+                    if (null == eglConfig) {
+                        throw new GLException("Couldn't create EGLGraphicsConfiguration from "+s);
+                    } else if(DEBUG) {
+                        System.err.println("Chosen eglConfig: "+eglConfig);
+                    }
+                    recreateSurface();
+                }
+            } finally {
+              unlockSurface();
+            }
+        } else if (ownEGLSurface && eglSurface != EGL.EGL_NO_SURFACE) {
+            // Destroy the window surface
+            if (!EGL.eglDestroySurface(eglDisplay, eglSurface)) {
+                throw new GLException("Error destroying window surface (eglDestroySurface)");
+            }
+            eglSurface = EGL.EGL_NO_SURFACE;
+            if (ownEGLDisplay && EGL.EGL_NO_DISPLAY!=eglDisplay) {
+                EGL.eglTerminate(eglDisplay);
+            }
+            eglDisplay=EGL.EGL_NO_DISPLAY;
+            eglConfig=null;
+        }
+    }
+
+    public int getWidth() {
+        int[] tmp = new int[1];
+        if (!EGL.eglQuerySurface(eglDisplay, eglSurface, EGL.EGL_WIDTH, tmp, 0)) {
+            throw new GLException("Error querying surface width");
+        }
+        return tmp[0];
+    }
+
+    public int getHeight() {
+        int[] tmp = new int[1];
+        if (!EGL.eglQuerySurface(eglDisplay, eglSurface, EGL.EGL_HEIGHT, tmp, 0)) {
+            throw new GLException("Error querying surface height");
+        }
+        return tmp[0];
+    }
+
+    public DynamicLookupHelper getDynamicLookupHelper() {
+        return EGLDynamicLookupHelper.getDynamicLookupHelper(getGLProfile());
+    }
+
+    public String toString() {
+        return getClass().getName()+"[realized "+getRealized()+
+                    ",\n\tfactory    "+getFactory()+
+                    ",\n\twindow     "+getNativeWindow()+
+                    ",\n\teglSurface  0x"+Long.toHexString(eglSurface)+
+                    ",\n\teglConfig  "+eglConfig+
+                    ",\n\trequested  "+getRequestedGLCapabilities()+
+                    ",\n\tchosen     "+getChosenGLCapabilities()+"]";
+    }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLDrawableFactory.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLDrawableFactory.java
new file mode 100755
index 000000000..f6c8b800e
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLDrawableFactory.java
@@ -0,0 +1,113 @@
+/*
+ * 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 com.jogamp.opengl.impl.egl;
+
+import java.util.*;
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.*;
+import com.jogamp.gluegen.runtime.NativeLibrary;
+
+public class EGLDrawableFactory extends GLDrawableFactoryImpl {
+  
+    static {
+        // Register our GraphicsConfigurationFactory implementations
+        // The act of constructing them causes them to be registered
+        new EGLGraphicsConfigurationFactory();
+
+        // Check for other underlying stuff ..
+        if(NativeWindowFactory.TYPE_X11.equals(NativeWindowFactory.getNativeWindowType(true))) {
+            try {
+                NWReflection.createInstance("com.jogamp.opengl.impl.x11.glx.X11GLXGraphicsConfigurationFactory");
+            } catch (Throwable t) {}
+        }
+    }
+
+    public EGLDrawableFactory() {
+        super();
+    }
+
+    public GLDrawableImpl createOnscreenDrawable(NativeWindow target) {
+        if (target == null) {
+          throw new IllegalArgumentException("Null target");
+        }
+        return new EGLOnscreenDrawable(this, target);
+    }
+
+    protected GLDrawableImpl createOffscreenDrawable(NativeWindow target) {
+        throw new GLException("Not yet implemented");
+    }
+
+    public boolean canCreateGLPbuffer() {
+        return true;
+    }
+
+    protected GLDrawableImpl createGLPbufferDrawableImpl(NativeWindow target) {
+        return new EGLPbufferDrawable(this, target);
+    }
+
+    protected NativeWindow createOffscreenWindow(GLCapabilities capabilities, GLCapabilitiesChooser chooser, int width, int height) {
+        NullWindow nw = new NullWindow(EGLGraphicsConfigurationFactory.createOffscreenGraphicsConfiguration(capabilities, chooser));
+        nw.setSize(width, height);
+        return nw;
+    }
+
+    public GLContext createExternalGLContext() {
+        AbstractGraphicsScreen absScreen = DefaultGraphicsScreen.createScreenDevice(0);
+        return new EGLExternalContext(absScreen);
+    }
+
+    public boolean canCreateExternalGLDrawable() {
+        return false;
+    }
+
+    public GLDrawable createExternalGLDrawable() {
+        throw new GLException("Not yet implemented");
+    }
+
+    public void loadGLULibrary() {
+    }
+
+    public boolean canCreateContextOnJava2DSurface() {
+        return false;
+    }
+
+    public GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
+        throws GLException {
+        throw new GLException("Unimplemented on this platform");
+    }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLDynamicLookupHelper.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLDynamicLookupHelper.java
new file mode 100755
index 000000000..21e28ad28
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLDynamicLookupHelper.java
@@ -0,0 +1,271 @@
+/*
+ * 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 com.jogamp.opengl.impl.egl;
+
+import java.util.*;
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.*;
+import com.jogamp.gluegen.runtime.NativeLibrary;
+import com.jogamp.gluegen.runtime.DynamicLookupHelper;
+import java.security.*;
+
+/**
+ * Abstract implementation of the DynamicLookupHelper for EGL,
+ * which decouples it's dependencies to EGLDrawableFactory.
+ *
+ * Currently two implementations exist, one for ES1 and one for ES2.
+ */
+public abstract class EGLDynamicLookupHelper implements DynamicLookupHelper {
+    protected static final boolean DEBUG = com.jogamp.opengl.impl.Debug.debug("EGL");
+    protected static final boolean DEBUG_LOOKUP;
+
+    private static final EGLDynamicLookupHelper eglES1DynamicLookupHelper;
+    private static final EGLDynamicLookupHelper eglES2DynamicLookupHelper;
+    private List/*<NativeLibrary>*/ glesLibraries;
+
+    static {
+        AccessControlContext localACC=AccessController.getContext();
+        DEBUG_LOOKUP = com.jogamp.opengl.impl.Debug.isPropertyDefined("jogl.debug.DynamicLookup", true, localACC);
+
+        EGLDynamicLookupHelper tmp=null;
+        try {
+            tmp = new EGLES1DynamicLookupHelper();
+        } catch (Throwable t) {
+            if(DEBUG) {
+                t.printStackTrace();
+            }
+        }
+        eglES1DynamicLookupHelper = tmp;
+
+        tmp=null;
+        try {
+            tmp = new EGLES2DynamicLookupHelper();
+        } catch (Throwable t) {
+            if(DEBUG) {
+                t.printStackTrace();
+            }
+        }
+        eglES2DynamicLookupHelper = tmp;
+    }
+
+    public static EGLDynamicLookupHelper getDynamicLookupHelper(GLProfile glp) {
+        if (glp.usesNativeGLES2()) {
+            if(null==eglES2DynamicLookupHelper) {
+                throw new GLException("EGLDynamicLookupHelper for ES2 not available");
+            }
+            return eglES2DynamicLookupHelper;
+        } else if (glp.usesNativeGLES1()) {
+            if(null==eglES1DynamicLookupHelper) {
+                throw new GLException("EGLDynamicLookupHelper for ES1 not available");
+            }
+            return eglES1DynamicLookupHelper;
+        } else {
+            throw new GLException("Unsupported: "+glp);
+        }
+    }
+
+    public static EGLDynamicLookupHelper getDynamicLookupHelper(int esProfile) {
+        if (2==esProfile) {
+            if(null==eglES2DynamicLookupHelper) {
+                throw new GLException("EGLDynamicLookupHelper for ES2 not available");
+            }
+            return eglES2DynamicLookupHelper;
+        } else if (1==esProfile) {
+            if(null==eglES1DynamicLookupHelper) {
+                throw new GLException("EGLDynamicLookupHelper for ES1 not available");
+            }
+            return eglES1DynamicLookupHelper;
+        } else {
+            throw new GLException("Unsupported: ES"+esProfile);
+        }
+    }
+
+    protected EGLDynamicLookupHelper() {
+        loadGLESLibrary(getESProfile());
+        EGL.resetProcAddressTable(this);
+    }
+
+    /** Must return the proper ES profile number, 1 for ES1 and 2 for ES2 */
+    protected abstract int getESProfile();
+
+    /** Must return at least one OpenGL ES library name */
+    protected abstract List/*<String>*/ getGLESLibNames();
+
+    /** May return OpenGL ES library name(s) */
+    protected List/*<String>*/ getEGLLibNames() {
+        List/*<String>*/ eglLibNames = new ArrayList();
+
+        // EGL
+        eglLibNames.add("EGL");
+        // for windows distributions using the 'unlike' lib prefix, 
+        // where our tool does not add it.
+        eglLibNames.add("libEGL");
+
+        return eglLibNames;
+    }
+
+    private NativeLibrary loadFirstAvailable(List/*<String>*/ libNames, ClassLoader loader) {
+        for (Iterator iter = libNames.iterator(); iter.hasNext(); ) {
+            NativeLibrary lib = NativeLibrary.open((String) iter.next(), loader, false /*global*/);
+            if (lib != null) {
+                return lib;
+            }
+        }
+        return null;
+    }
+
+    private boolean loadEGLLibrary(ClassLoader loader, List/*<String>*/ eglLibNames) {
+        NativeLibrary lib = null;
+        if(null!=eglLibNames && eglLibNames.size()>0) {
+            // EGL libraries ..
+            lib = loadFirstAvailable(eglLibNames, loader);
+            if ( null != lib ) {
+                glesLibraries.add(lib);
+            }
+        }
+        return null!=lib;
+    }
+
+    private void loadGLESLibrary(int esProfile) {
+        List/*<String>*/ glesLibNames = getGLESLibNames();
+        List/*<String>*/ eglLibNames = getEGLLibNames();
+        boolean eglLoaded = false;
+
+        ClassLoader loader = getClass().getClassLoader();
+        NativeLibrary lib = null;
+
+        glesLibraries = new ArrayList();
+
+        // ES libraries ..
+        lib = loadFirstAvailable(glesLibNames, loader);
+        if ( null == lib ) {
+            /*** FIXME: Have to think about this ..
+            // try again with EGL loaded first ..
+            if ( !eglLoaded && loadEGLLibrary(loader, eglLibNames) ) {
+                eglLoaded = true ;
+                lib = loadFirstAvailable(glesLibNames, loader);
+            }
+            if ( null == lib ) {
+                throw new GLException("Unable to dynamically load OpenGL ES library for profile ES" + esProfile);
+            } */
+            throw new GLException("Unable to dynamically load OpenGL ES library for profile ES" + esProfile);
+        }
+        glesLibraries.add(lib);
+
+        if ( !eglLoaded && !loadEGLLibrary(loader, eglLibNames) ) {
+            throw new GLException("Unable to dynamically load EGL library for profile ES" + esProfile);
+        }
+
+        if (esProfile==2) {
+            NativeLibLoader.loadES2();
+        } else if (esProfile==1) {
+            NativeLibLoader.loadES1();
+        } else {
+            throw new GLException("Unsupported: ES"+esProfile);
+        }
+    }
+
+    private long dynamicLookupFunctionOnLibs(String glFuncName) {
+        String funcName=glFuncName;
+        long addr = dynamicLookupFunctionOnLibsImpl(funcName);
+        if( 0==addr && NativeWindowFactory.TYPE_WINDOWS.equals(NativeWindowFactory.getNativeWindowType(false)) ) {
+            // Hack: try some C++ decoration here for Imageon's emulation libraries ..
+            final int argAlignment=4;  // 4 byte alignment of each argument
+            final int maxArguments=12; // experience ..
+            for(int arg=0; 0==addr && arg<=maxArguments; arg++) {
+                funcName = "_"+glFuncName+"@"+(arg*argAlignment);
+                addr = dynamicLookupFunctionOnLibsImpl(funcName);
+            }
+        }
+        if(DEBUG_LOOKUP) {
+            if(0!=addr) {
+                System.err.println("Lookup-Native: "+glFuncName+" / "+funcName+" 0x"+Long.toHexString(addr));
+            } else {
+                System.err.println("Lookup-Native: "+glFuncName+" / "+funcName+" ** FAILED ** ");
+            }
+        }
+        return addr;
+    }
+
+    private long dynamicLookupFunctionOnLibsImpl(String glFuncName) {
+        // Look up this function name in all known libraries
+        for (Iterator iter = glesLibraries.iterator(); iter.hasNext(); ) {
+            NativeLibrary lib = (NativeLibrary) iter.next();
+            long addr = lib.lookupFunction(glFuncName);
+            if (addr != 0) {
+                return addr;
+            }
+        }
+        return 0;
+    }
+
+    private long eglGetProcAddressHandle = 0;
+
+    public long dynamicLookupFunction(String glFuncName) {
+        if(null==glFuncName) {
+            return 0;
+        }
+
+        // bootstrap eglGetProcAddress
+        if(0==eglGetProcAddressHandle) {
+            eglGetProcAddressHandle = dynamicLookupFunctionOnLibs("eglGetProcAddress");
+            if(0==eglGetProcAddressHandle) {
+                GLException e = new GLException("Couldn't find eglGetProcAddress function entry");
+                if(DEBUG) {
+                    e.printStackTrace();
+                }
+                throw e;
+            }
+        }
+
+        if(glFuncName.equals("eglGetProcAddress")) {
+            return eglGetProcAddressHandle;
+        }
+
+        long addr = EGL.eglGetProcAddress(eglGetProcAddressHandle, glFuncName);
+        if(DEBUG_LOOKUP) {
+            if(0!=addr) {
+                System.err.println("Lookup-EGL: <"+glFuncName+"> 0x"+Long.toHexString(addr));
+            }
+        }
+        if(0==addr) {
+            addr = dynamicLookupFunctionOnLibs(glFuncName);
+        }
+        return addr;
+    }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLES1DynamicLookupHelper.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLES1DynamicLookupHelper.java
new file mode 100755
index 000000000..0dc9535ce
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLES1DynamicLookupHelper.java
@@ -0,0 +1,73 @@
+/*
+ * 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 com.jogamp.opengl.impl.egl;
+
+import java.util.*;
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.*;
+import com.jogamp.gluegen.runtime.NativeLibrary;
+
+/**
+ * Implementation of the EGLDynamicLookupHelper for ES1.
+ */
+public class EGLES1DynamicLookupHelper extends EGLDynamicLookupHelper {
+  
+    protected EGLES1DynamicLookupHelper() {
+        super();
+    }
+
+    protected int getESProfile() {
+        return 1;
+    }
+
+    protected List/*<String>*/ getGLESLibNames() {
+        List/*<String>*/ glesLibNames = new ArrayList();
+
+        glesLibNames.add("GLES_CM");
+        glesLibNames.add("GLES_CL");
+        glesLibNames.add("GLESv1_CM");
+        // for windows distributions using the 'unlike' lib prefix, 
+        // where our tool does not add it.
+        glesLibNames.add("libGLES_CM");
+        glesLibNames.add("libGLES_CL");
+        glesLibNames.add("libGLESv1_CM");
+
+        return glesLibNames;
+    }
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLES2DynamicLookupHelper.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLES2DynamicLookupHelper.java
new file mode 100755
index 000000000..595ded538
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLES2DynamicLookupHelper.java
@@ -0,0 +1,73 @@
+/*
+ * 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 com.jogamp.opengl.impl.egl;
+
+import java.util.*;
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.*;
+import com.jogamp.gluegen.runtime.NativeLibrary;
+
+/**
+ * Implementation of the EGLDynamicLookupHelper for ES2.
+ */
+public class EGLES2DynamicLookupHelper extends EGLDynamicLookupHelper {
+  
+    protected EGLES2DynamicLookupHelper() {
+        super();
+    }
+
+    protected int getESProfile() {
+        return 2;
+    }
+
+    protected List/*<String>*/ getGLESLibNames() {
+        List/*<String>*/ glesLibNames = new ArrayList();
+
+        glesLibNames.add("GLES20");
+        glesLibNames.add("GLESv2");
+        glesLibNames.add("GLESv2_CM");
+        // for windows distributions using the 'unlike' lib prefix
+        // where our tool does not add it.
+        glesLibNames.add("libGLES20"); 
+        glesLibNames.add("libGLESv2");
+        glesLibNames.add("libGLESv2_CM");
+
+        return glesLibNames;
+    }
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLExternalContext.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLExternalContext.java
new file mode 100755
index 000000000..de7fd2ba4
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLExternalContext.java
@@ -0,0 +1,99 @@
+/*
+ * 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 com.jogamp.opengl.impl.egl;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import javax.media.nativewindow.*;
+
+public class EGLExternalContext extends EGLContext {
+    private boolean firstMakeCurrent = true;
+    private boolean created = true;
+    private GLContext lastContext;
+
+    public EGLExternalContext(AbstractGraphicsScreen screen) {
+        super(null, null);
+        GLContextShareSet.contextCreated(this);
+        setGLFunctionAvailability(false);
+        getGLStateTracker().setEnabled(false); // external context usage can't track state in Java
+    }
+
+    public int makeCurrent() throws GLException {
+        // Save last context if necessary to allow external GLContexts to
+        // talk to other GLContexts created by this library
+        GLContext cur = getCurrent();
+        if (cur != null && cur != this) {
+            lastContext = cur;
+            setCurrent(null);
+        }
+        return super.makeCurrent();
+    }  
+
+    public void release() throws GLException {
+        super.release();
+        setCurrent(lastContext);
+        lastContext = null;
+    }
+
+    protected int makeCurrentImpl() throws GLException {
+        if (firstMakeCurrent) {
+            firstMakeCurrent = false;
+            return CONTEXT_CURRENT_NEW;
+        }
+        return CONTEXT_CURRENT;
+    }
+
+    protected void releaseImpl() throws GLException {
+    }
+
+    protected void destroyImpl() throws GLException {
+        created = false;
+        GLContextShareSet.contextDestroyed(this);
+    }
+
+    public boolean isCreated() {
+        return created;
+    }
+
+    public void bindPbufferToTexture() {
+        throw new GLException("Should not call this");
+    }
+
+    public void releasePbufferFromTexture() {
+        throw new GLException("Should not call this");
+    }
+
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLGraphicsConfiguration.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLGraphicsConfiguration.java
new file mode 100644
index 000000000..33f9db140
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLGraphicsConfiguration.java
@@ -0,0 +1,306 @@
+/*
+ * 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 com.jogamp.opengl.impl.egl;
+
+import java.util.*;
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.egl.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.gluegen.runtime.NativeLibrary;
+
+public class EGLGraphicsConfiguration extends DefaultGraphicsConfiguration implements Cloneable {
+    protected static final boolean DEBUG = Debug.debug("GraphicsConfiguration");
+
+    public _EGLConfig getNativeConfig() {
+        return _config;
+    }
+
+    public int getNativeConfigID() {
+        return configID;
+    }
+
+    public EGLGraphicsConfiguration(AbstractGraphicsScreen absScreen, 
+                                    GLCapabilities capsChosen, GLCapabilities capsRequested, GLCapabilitiesChooser chooser,
+                                    _EGLConfig cfg, int cfgID) {
+        super(absScreen, capsChosen, capsRequested);
+        this.chooser = chooser;
+        _config = cfg;
+        configID = cfgID;
+    }
+
+    public static EGLGraphicsConfiguration create(GLCapabilities capsRequested, AbstractGraphicsScreen absScreen, int cfgID) {
+        AbstractGraphicsDevice absDevice = absScreen.getDevice();
+        if(null==absDevice || !(absDevice instanceof EGLGraphicsDevice)) {
+            throw new GLException("GraphicsDevice must be a valid EGLGraphicsDevice");
+        }
+        long dpy = absDevice.getHandle();
+        if (dpy == EGL.EGL_NO_DISPLAY) {
+            throw new GLException("Invalid EGL display: "+absDevice);
+        }
+        GLProfile glp = capsRequested.getGLProfile();
+        _EGLConfig _cfg = EGLConfigId2EGLConfig(glp, dpy, cfgID);
+        GLCapabilities caps = EGLConfig2Capabilities(glp, dpy, _cfg, false, capsRequested.isOnscreen(), capsRequested.isPBuffer());
+        return new EGLGraphicsConfiguration(absScreen, caps, capsRequested, new DefaultGLCapabilitiesChooser(), _cfg, cfgID);
+    }
+
+    public Object clone() {
+        return super.clone();
+    }
+
+    protected void updateGraphicsConfiguration() {
+        EGLGraphicsConfiguration newConfig = (EGLGraphicsConfiguration)
+            GraphicsConfigurationFactory.getFactory(getScreen().getDevice()).chooseGraphicsConfiguration(getRequestedCapabilities(),
+                                                                                                         chooser,
+                                                                                                         getScreen());
+        if(null!=newConfig) {
+            // FIXME: setScreen( ... );
+            setChosenCapabilities(newConfig.getChosenCapabilities());
+            _config = newConfig.getNativeConfig();
+            configID = newConfig.getNativeConfigID();
+            if(DEBUG) {
+                System.err.println("!!! updateGraphicsConfiguration: "+this);
+            }
+        }
+    }
+
+    public static _EGLConfig EGLConfigId2EGLConfig(GLProfile glp, long display, int configID) {
+        int[] attrs = new int[] {
+                EGL.EGL_CONFIG_ID, configID,
+                EGL.EGL_NONE
+            };
+        _EGLConfig[] configs = new _EGLConfig[1];
+        int[] numConfigs = new int[1];
+        if (!EGL.eglChooseConfig(display,
+                                 attrs, 0,
+                                 configs, 1,
+                                 numConfigs, 0)) {
+            return null;
+        }
+        if (numConfigs[0] == 0) {
+            return null;
+        }
+        return configs[0];
+    }
+
+    public static boolean EGLConfigDrawableTypeVerify(int val, boolean onscreen, boolean usePBuffer) {
+        boolean res;
+
+        if ( onscreen ) {
+            res = ( 0 != (val & EGL.EGL_WINDOW_BIT) ) ;
+        } else {
+            res = ( 0 != (val & EGL.EGL_PIXMAP_BIT) ) || usePBuffer ;
+        }
+        if ( usePBuffer ) {
+            res = res && ( 0 != (val & EGL.EGL_PBUFFER_BIT) ) ;
+        }
+
+        return res;
+    }
+
+    public static GLCapabilities EGLConfig2Capabilities(GLProfile glp, long display, _EGLConfig _config, 
+                                                        boolean relaxed, boolean onscreen, boolean usePBuffer) {
+        GLCapabilities caps = new GLCapabilities(glp);
+        int[] val = new int[1];
+
+        // Read the actual configuration into the choosen caps
+        if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_RED_SIZE, val, 0)) {
+            caps.setRedBits(val[0]);
+        }
+        if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_GREEN_SIZE, val, 0)) {
+            caps.setGreenBits(val[0]);
+        }
+        if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_BLUE_SIZE, val, 0)) {
+            caps.setBlueBits(val[0]);
+        }
+        if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_ALPHA_SIZE, val, 0)) {
+            caps.setAlphaBits(val[0]);
+        }
+        if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_STENCIL_SIZE, val, 0)) {
+            caps.setStencilBits(val[0]);
+        }
+        if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_DEPTH_SIZE, val, 0)) {
+            caps.setDepthBits(val[0]);
+        }
+        if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_SAMPLES, val, 0)) {
+            caps.setSampleBuffers(val[0]>0?true:false);
+            caps.setNumSamples(val[0]);
+        }
+        if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_TRANSPARENT_TYPE, val, 0)) {
+            caps.setBackgroundOpaque(val[0] != EGL.EGL_TRANSPARENT_RGB);
+        }
+        if(!caps.isBackgroundOpaque()) {
+            if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_TRANSPARENT_RED_VALUE, val, 0)) {
+                caps.setTransparentRedValue(val[0]==EGL.EGL_DONT_CARE?-1:val[0]);
+            }
+            if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_TRANSPARENT_GREEN_VALUE, val, 0)) {
+                caps.setTransparentGreenValue(val[0]==EGL.EGL_DONT_CARE?-1:val[0]);
+            }
+            if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_TRANSPARENT_BLUE_VALUE, val, 0)) {
+                caps.setTransparentBlueValue(val[0]==EGL.EGL_DONT_CARE?-1:val[0]);
+            }
+            /** Not defined in EGL 
+            if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_TRANSPARENT_ALPHA_VALUE, val, 0)) {
+                caps.setTransparentAlphaValue(val[0]==EGL.EGL_DONT_CARE?-1:val[0]);
+            } */
+        }
+        if(EGL.eglGetConfigAttrib(display, _config, EGL.EGL_SURFACE_TYPE, val, 0)) {
+            if(EGLConfigDrawableTypeVerify(val[0], onscreen, usePBuffer)) {
+                caps.setDoubleBuffered(onscreen);
+                caps.setOnscreen(onscreen);
+                caps.setPBuffer(usePBuffer);
+            } else if(relaxed) {
+                caps.setDoubleBuffered( 0 != (val[0] & EGL.EGL_WINDOW_BIT) );
+                caps.setOnscreen( 0 != (val[0] & EGL.EGL_WINDOW_BIT) );
+                caps.setPBuffer ( 0 != (val[0] & EGL.EGL_PBUFFER_BIT) );
+            } else {
+                throw new GLException("EGL_SURFACE_TYPE does not match !!!");
+            }
+        } else {
+            if(relaxed) {
+                if(DEBUG) {
+                    System.err.println("Could not determine EGL_SURFACE_TYPE !!!");
+                }
+                return null;
+            } else {
+                throw new GLException("Could not determine EGL_SURFACE_TYPE !!!");
+            }
+        }
+
+        return caps;
+    }
+
+    public static int[] GLCapabilities2AttribList(GLCapabilities caps) {
+        int[] attrs = new int[32];
+        int idx=0;
+
+        attrs[idx++] = EGL.EGL_SURFACE_TYPE;
+        attrs[idx++] = caps.isOnscreen() ? ( EGL.EGL_WINDOW_BIT ) : ( caps.isPBuffer() ? EGL.EGL_PBUFFER_BIT : EGL.EGL_PIXMAP_BIT ) ;
+
+        attrs[idx++] = EGL.EGL_RED_SIZE;
+        attrs[idx++] = caps.getRedBits();
+
+        attrs[idx++] = EGL.EGL_GREEN_SIZE;
+        attrs[idx++] = caps.getGreenBits();
+
+        attrs[idx++] = EGL.EGL_BLUE_SIZE;
+        attrs[idx++] = caps.getBlueBits();
+
+        attrs[idx++] = EGL.EGL_ALPHA_SIZE;
+        attrs[idx++] = caps.getAlphaBits() > 0 ? caps.getAlphaBits() : EGL.EGL_DONT_CARE;
+
+        attrs[idx++] = EGL.EGL_STENCIL_SIZE;
+        attrs[idx++] = caps.getStencilBits() > 0 ? caps.getStencilBits() : EGL.EGL_DONT_CARE;
+
+        attrs[idx++] = EGL.EGL_DEPTH_SIZE;
+        attrs[idx++] = caps.getDepthBits();
+
+        attrs[idx++] = EGL.EGL_SAMPLES;
+        attrs[idx++] = caps.getSampleBuffers() ? caps.getNumSamples() : 1;
+
+        attrs[idx++] = EGL.EGL_TRANSPARENT_TYPE;
+        attrs[idx++] = caps.isBackgroundOpaque() ? EGL.EGL_NONE : EGL.EGL_TRANSPARENT_TYPE;
+
+        // 20
+
+        if(!caps.isBackgroundOpaque()) {
+            attrs[idx++] = EGL.EGL_TRANSPARENT_RED_VALUE;
+            attrs[idx++] = caps.getTransparentRedValue()>=0?caps.getTransparentRedValue():EGL.EGL_DONT_CARE;
+
+            attrs[idx++] = EGL.EGL_TRANSPARENT_GREEN_VALUE;
+            attrs[idx++] = caps.getTransparentGreenValue()>=0?caps.getTransparentGreenValue():EGL.EGL_DONT_CARE;
+
+            attrs[idx++] = EGL.EGL_TRANSPARENT_BLUE_VALUE;
+            attrs[idx++] = caps.getTransparentBlueValue()>=0?caps.getTransparentBlueValue():EGL.EGL_DONT_CARE;
+
+            /** Not define in EGL
+            attrs[idx++] = EGL.EGL_TRANSPARENT_ALPHA_VALUE;
+            attrs[idx++] = caps.getTransparentAlphaValue()>=0?caps.getTransparentAlphaValue():EGL.EGL_DONT_CARE; */
+        }
+
+        // 26 
+
+        attrs[idx++] = EGL.EGL_RENDERABLE_TYPE;
+        if(caps.getGLProfile().usesNativeGLES1()) {
+            attrs[idx++] = EGL.EGL_OPENGL_ES_BIT;
+        }
+        else if(caps.getGLProfile().usesNativeGLES2()) {
+            attrs[idx++] = EGL.EGL_OPENGL_ES2_BIT;
+        } else {
+            attrs[idx++] = EGL.EGL_OPENGL_BIT;
+        }
+
+        // 28
+
+        attrs[idx++] = EGL.EGL_NONE;
+
+        return attrs;
+    }
+
+    public static int[] CreatePBufferSurfaceAttribList(int width, int height, int texFormat) {
+        int[] attrs = new int[16];
+        int idx=0;
+
+        attrs[idx++] = EGL.EGL_WIDTH;
+        attrs[idx++] = width;
+
+        attrs[idx++] = EGL.EGL_HEIGHT;
+        attrs[idx++] = height;
+
+        attrs[idx++] = EGL.EGL_TEXTURE_FORMAT;
+        attrs[idx++] = texFormat;
+
+        attrs[idx++] = EGL.EGL_TEXTURE_TARGET;
+        attrs[idx++] = EGL.EGL_NO_TEXTURE==texFormat ? EGL.EGL_NO_TEXTURE : EGL.EGL_TEXTURE_2D;
+
+        attrs[idx++] = EGL.EGL_NONE;
+
+        return attrs;
+    }
+
+    public String toString() {
+        return getClass().toString()+"["+getScreen()+", eglConfigID 0x"+Integer.toHexString(configID)+
+                                     ",\n\trequested " + getRequestedCapabilities()+
+                                     ",\n\tchosen    " + getChosenCapabilities()+
+                                     "]";
+
+    }
+
+    private GLCapabilitiesChooser chooser;
+    private _EGLConfig _config;
+    private int configID;
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLGraphicsConfigurationFactory.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLGraphicsConfigurationFactory.java
new file mode 100644
index 000000000..6546ecab7
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLGraphicsConfigurationFactory.java
@@ -0,0 +1,298 @@
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.egl;
+
+import java.io.PrintStream;
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.egl.*;
+import com.sun.nativewindow.impl.*;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+
+/** Subclass of GraphicsConfigurationFactory used when non-AWT tookits
+    are used on X11 platforms. Toolkits will likely need to delegate
+    to this one to change the accepted and returned types of the
+    GraphicsDevice and GraphicsConfiguration abstractions. */
+
+public class EGLGraphicsConfigurationFactory extends GraphicsConfigurationFactory {
+    protected static final boolean DEBUG = GraphicsConfigurationFactory.DEBUG || com.jogamp.opengl.impl.Debug.debug("EGL");
+
+    public EGLGraphicsConfigurationFactory() {
+        // become the selector for KD/EGL ..
+        GraphicsConfigurationFactory.registerFactory(javax.media.nativewindow.egl.EGLGraphicsDevice.class, this);
+    }
+
+    public AbstractGraphicsConfiguration chooseGraphicsConfiguration(Capabilities capabilities,
+                                                                     CapabilitiesChooser chooser,
+                                                                     AbstractGraphicsScreen absScreen) {
+        if (absScreen == null) {
+            throw new IllegalArgumentException("This NativeWindowFactory accepts only AbstractGraphicsDevice objects");
+        }
+
+        if (capabilities != null &&
+            !(capabilities instanceof GLCapabilities)) {
+            throw new IllegalArgumentException("This NativeWindowFactory accepts only GLCapabilities objects");
+        }
+
+        if (chooser != null &&
+            !(chooser instanceof GLCapabilitiesChooser)) {
+            throw new IllegalArgumentException("This NativeWindowFactory accepts only GLCapabilitiesChooser objects");
+        }
+
+        return chooseGraphicsConfigurationStatic((GLCapabilities) capabilities,
+                                                 (GLCapabilitiesChooser) chooser,
+                                                 absScreen);
+    }
+
+    public static EGLGraphicsConfiguration chooseGraphicsConfigurationStatic(GLCapabilities capabilities,
+                                                                             GLCapabilitiesChooser chooser,
+                                                                             AbstractGraphicsScreen absScreen) {
+        if (capabilities == null) {
+            capabilities = new GLCapabilities(null);
+        }
+        GLProfile glp = capabilities.getGLProfile();
+
+        if(null==absScreen) {
+            throw new GLException("Null AbstractGraphicsScreen");
+        }
+        AbstractGraphicsDevice absDevice = absScreen.getDevice();
+
+        if(null==absDevice || !(absDevice instanceof EGLGraphicsDevice)) {
+            throw new GLException("GraphicsDevice must be a valid EGLGraphicsDevice");
+        }
+        long eglDisplay = absDevice.getHandle();
+
+        if (eglDisplay == EGL.EGL_NO_DISPLAY) {
+            throw new GLException("Invalid EGL display: "+absDevice);
+        }
+
+        GLCapabilities caps2 = (GLCapabilities) capabilities.clone();
+        if(!caps2.isOnscreen()) {
+            // OFFSCREEN !DOUBLE_BUFFER
+            caps2.setDoubleBuffered(false);
+        }
+
+        EGLGraphicsConfiguration res = eglChooseConfig(eglDisplay, caps2, capabilities, chooser, absScreen);
+        if(null!=res) {
+            return res;
+        }
+        if(DEBUG) {
+            System.err.println("eglChooseConfig failed with given capabilities "+caps2);
+        }
+
+        if (chooser == null) {
+            chooser = new DefaultGLCapabilitiesChooser();
+        }
+
+        _EGLConfig[] configs = new _EGLConfig[10];
+        int[] numConfigs = new int[1];
+
+        if(!EGL.eglGetConfigs(eglDisplay, configs, configs.length, numConfigs, 0)) {
+            throw new GLException("Graphics configuration fetch (eglGetConfigs) failed");
+        }
+        if (numConfigs[0] == 0) {
+            throw new GLException("Graphics configuration fetch (eglGetConfigs) - no EGLConfig found");
+        }
+        GLCapabilities[] caps = eglConfigs2GLCaps(glp, eglDisplay, configs, numConfigs[0],
+                                                    caps2.isOnscreen(), caps2.isPBuffer());
+        if(DEBUG) {
+            System.err.println("EGL Get Configs: "+numConfigs[0]+", Caps "+caps.length);
+            printCaps("eglGetConfigs", caps, System.err);
+        }
+        int chosen = -1;
+        try {
+            chosen = chooser.chooseCapabilities(caps2, caps, -1);
+        } catch (NativeWindowException e) { throw new GLException(e); }
+        if(chosen<0) {
+            throw new GLException("Graphics configuration chooser failed");
+        }
+        if(DEBUG) {
+            System.err.println("Chosen "+caps[chosen]);
+        }
+        res = eglChooseConfig(eglDisplay, caps[chosen], capabilities, chooser, absScreen);
+        if(null!=res) {
+            return res;
+        }
+        if(DEBUG) {
+            System.err.println("eglChooseConfig failed with eglGetConfig/choosen capabilities "+caps[chosen]);
+        }
+
+        // Last try .. add a fixed embedded profile [ATI, Nokia, Intel, ..]
+        //
+        // rgb888 - d16, s4
+        GLCapabilities fixedCaps = new GLCapabilities(glp);
+        fixedCaps.setRedBits(8);
+        fixedCaps.setGreenBits(8);
+        fixedCaps.setBlueBits(8);
+        fixedCaps.setDepthBits(16);
+        fixedCaps.setSampleBuffers(true);
+        fixedCaps.setNumSamples(4);
+        if(DEBUG) {
+            System.err.println("trying fixed caps (1): "+fixedCaps);
+        }
+        res = eglChooseConfig(eglDisplay, fixedCaps, capabilities, chooser, absScreen);
+        if(null!=res) {
+            return res;
+        }
+
+        //
+        // rgb565 - d16, s0
+        fixedCaps = new GLCapabilities(glp);
+        fixedCaps.setRedBits(5);
+        fixedCaps.setGreenBits(6);
+        fixedCaps.setBlueBits(5);
+        fixedCaps.setDepthBits(16);
+        if(DEBUG) {
+            System.err.println("trying fixed caps (2): "+fixedCaps);
+        }
+        res = eglChooseConfig(eglDisplay, fixedCaps, capabilities, chooser, absScreen);
+        if(null!=res) {
+            return res;
+        }
+
+        //
+        // rgb565 - d16, s4
+        fixedCaps = new GLCapabilities(glp);
+        fixedCaps.setRedBits(5);
+        fixedCaps.setGreenBits(6);
+        fixedCaps.setBlueBits(5);
+        fixedCaps.setDepthBits(16);
+        fixedCaps.setSampleBuffers(true);
+        fixedCaps.setNumSamples(4);
+        if(DEBUG) {
+            System.err.println("trying fixed caps (3): "+fixedCaps);
+        }
+        res = eglChooseConfig(eglDisplay, fixedCaps, capabilities, chooser, absScreen);
+        if(null!=res) {
+            return res;
+        }
+        throw new GLException("Graphics configuration failed [direct caps, eglGetConfig/chooser and fixed-caps(1-3)]");
+    }
+
+    protected static EGLGraphicsConfiguration eglChooseConfig(long eglDisplay, 
+                                                              GLCapabilities capsChosen0, GLCapabilities capsRequested, GLCapabilitiesChooser chooser,
+                                                              AbstractGraphicsScreen absScreen) {
+        GLProfile glp = capsChosen0.getGLProfile();
+        int[] attrs = EGLGraphicsConfiguration.GLCapabilities2AttribList(capsChosen0);
+        _EGLConfig[] configs = new _EGLConfig[1];
+        int[] numConfigs = new int[1];
+        if (!EGL.eglChooseConfig(eglDisplay,
+                                 attrs, 0,
+                                 configs, configs.length,
+                                 numConfigs, 0)) {
+            throw new GLException("Graphics configuration selection (eglChooseConfig) failed for "+capsChosen0);
+        }
+        if (numConfigs[0] > 0) {
+            if(DEBUG) {
+                GLCapabilities[] caps = eglConfigs2GLCaps(glp, eglDisplay, configs, numConfigs[0],
+                                                    capsChosen0.isOnscreen(), capsChosen0.isPBuffer());
+                System.err.println("EGL Choose Configs: "+numConfigs[0]+", Caps "+caps.length);
+                printCaps("eglChooseConfig", caps, System.err);
+            }
+            int[] val = new int[1];
+            // get the configID 
+            if(!EGL.eglGetConfigAttrib(eglDisplay, configs[0], EGL.EGL_CONFIG_ID, val, 0)) {
+                if(DEBUG) {
+                    // FIXME: this happens on a ATI PC Emulation ..
+                    System.err.println("EGL couldn't retrieve ConfigID for already chosen eglConfig "+capsChosen0+", error 0x"+Integer.toHexString(EGL.eglGetError()));
+                }
+                return null;
+            }
+            GLCapabilities capsChosen1 = EGLGraphicsConfiguration.EGLConfig2Capabilities(glp, eglDisplay, configs[0],
+                                                                    true, capsChosen0.isOnscreen(), capsChosen0.isPBuffer());
+            if(null!=capsChosen1) {
+                if(DEBUG) {
+                    System.err.println("eglChooseConfig found: eglDisplay 0x"+Long.toHexString(eglDisplay)+
+                                                            ", eglConfig ID 0x"+Integer.toHexString(val[0])+
+                                                            ", "+capsChosen0+" -> "+capsChosen1);
+                }
+                return new EGLGraphicsConfiguration(absScreen, capsChosen1, capsRequested, chooser, configs[0], val[0]);
+            }
+            if(DEBUG) {
+                System.err.println("eglChooseConfig couldn't verify: eglDisplay 0x"+Long.toHexString(eglDisplay)+
+                                                                        ", eglConfig ID 0x"+Integer.toHexString(val[0])+
+                                                                        ", for "+capsChosen0);
+            }
+        } else {
+            if(DEBUG) {
+                System.err.println("EGL Choose Configs: None using eglDisplay 0x"+Long.toHexString(eglDisplay)+
+                                                                ", "+capsChosen0);
+            }
+        }
+        return null;
+    }
+
+    protected static GLCapabilities[] eglConfigs2GLCaps(GLProfile glp, long eglDisplay, _EGLConfig[] configs, int num,
+                                                        boolean onscreen, boolean usePBuffer) {
+        GLCapabilities[] caps = new GLCapabilities[num];
+        for(int i=0; i<num; i++) {
+            caps[i] = EGLGraphicsConfiguration.EGLConfig2Capabilities(glp, eglDisplay, configs[i],
+                                            true, onscreen, usePBuffer);
+        }
+        return caps;
+    }
+
+    protected static void printCaps(String prefix, GLCapabilities[] caps, PrintStream out) {
+        for(int i=0; i<caps.length; i++) {
+            out.println(prefix+"["+i+"] "+caps[i]);
+        }
+    }
+
+    protected static EGLGraphicsConfiguration createOffscreenGraphicsConfiguration(GLCapabilities caps, GLCapabilitiesChooser chooser) {
+        if(caps.isOnscreen()) {
+            throw new GLException("Error: Onscreen set: "+caps);
+        }
+        caps.setDoubleBuffered(false); // FIXME
+        long eglDisplay = EGL.eglGetDisplay(EGL.EGL_DEFAULT_DISPLAY);
+        if (eglDisplay == EGL.EGL_NO_DISPLAY) {
+            throw new GLException("Failed to created EGL default display: error 0x"+Integer.toHexString(EGL.eglGetError()));
+        } else if(DEBUG) {
+            System.err.println("eglDisplay(EGL_DEFAULT_DISPLAY): 0x"+Long.toHexString(eglDisplay));
+        }
+        if (!EGL.eglInitialize(eglDisplay, null, null)) {
+            throw new GLException("eglInitialize failed"+", error 0x"+Integer.toHexString(EGL.eglGetError()));
+        }
+        EGLGraphicsDevice e = new EGLGraphicsDevice(eglDisplay);
+        DefaultGraphicsScreen s = new DefaultGraphicsScreen(e, 0);
+        EGLGraphicsConfiguration eglConfig = chooseGraphicsConfigurationStatic(caps, chooser, s);
+        if (null == eglConfig) {
+            EGL.eglTerminate(eglDisplay);
+            throw new GLException("Couldn't create EGLGraphicsConfiguration from "+s);
+        } else if(DEBUG) {
+            System.err.println("Chosen eglConfig: "+eglConfig);
+        }
+        return eglConfig;
+    }
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLOnscreenContext.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLOnscreenContext.java
new file mode 100755
index 000000000..b74991671
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLOnscreenContext.java
@@ -0,0 +1,90 @@
+/*
+ * 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 com.jogamp.opengl.impl.egl;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.gluegen.runtime.ProcAddressTable;
+import java.nio.*;
+import java.util.*;
+
+public class EGLOnscreenContext extends EGLContext {
+    public EGLOnscreenContext(EGLOnscreenDrawable drawable, GLContext shareWith) {
+        super(drawable, shareWith);
+    }
+
+    // Note: Usually the surface shall be locked within [makeCurrent .. swap .. release]
+    protected int makeCurrentImpl() throws GLException {
+        int lockRes = drawable.lockSurface();
+        boolean exceptionOccurred = false;
+        try {
+          if (lockRes == NativeWindow.LOCK_SURFACE_NOT_READY) {
+            return CONTEXT_NOT_CURRENT;
+          }
+          return super.makeCurrentImpl();
+        } catch (RuntimeException e) {
+          exceptionOccurred = true;
+          throw e;
+        } finally {
+          if (exceptionOccurred ||
+              (isOptimizable() && lockRes != NativeWindow.LOCK_SURFACE_NOT_READY) && drawable.isSurfaceLocked()) {
+            drawable.unlockSurface();
+          }
+        }
+    }
+
+    // Note: Usually the surface shall be locked within [makeCurrent .. swap .. release]
+    protected void releaseImpl() throws GLException {
+        try {
+          super.releaseImpl();
+        } finally {
+          if (!isOptimizable() && drawable.isSurfaceLocked()) {
+            drawable.unlockSurface();
+          }
+        }
+    }
+
+    public void bindPbufferToTexture() {
+        throw new GLException("Should not call this");
+    }
+
+    public void releasePbufferFromTexture() {
+        throw new GLException("Should not call this");
+    }
+
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLOnscreenDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLOnscreenDrawable.java
new file mode 100644
index 000000000..d37a36fb0
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLOnscreenDrawable.java
@@ -0,0 +1,82 @@
+/*
+ * 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 com.jogamp.opengl.impl.egl;
+
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.egl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.NullWindow;
+
+public class EGLOnscreenDrawable extends EGLDrawable {
+    protected EGLOnscreenDrawable(EGLDrawableFactory factory, NativeWindow component) throws GLException {
+        super(factory, component);
+    }
+
+    public GLContext createContext(GLContext shareWith) {
+        return new EGLOnscreenContext(this, shareWith);
+    }
+
+    protected long createSurface(long eglDpy, _EGLConfig eglNativeCfg, long surfaceHandle) {
+        return EGL.eglCreateWindowSurface(eglDpy, eglNativeCfg, surfaceHandle, null);
+    }
+
+    protected void swapBuffersImpl() {
+        boolean didLock = false;
+        try {
+          if ( !isSurfaceLocked() ) {
+              // Usually the surface shall be locked within [makeCurrent .. swap .. release]
+              if (lockSurface() == NativeWindow.LOCK_SURFACE_NOT_READY) {
+                  return;
+              }
+              didLock = true;
+          }
+
+          EGL.eglSwapBuffers(eglDisplay, eglSurface);
+
+        } finally {
+          if(didLock) {
+              unlockSurface();
+          }
+        }
+    }
+
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLPbufferContext.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLPbufferContext.java
new file mode 100755
index 000000000..5c634b9bd
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLPbufferContext.java
@@ -0,0 +1,62 @@
+/*
+ * 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 com.jogamp.opengl.impl.egl;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.gluegen.runtime.ProcAddressTable;
+import java.nio.*;
+import java.util.*;
+
+public class EGLPbufferContext extends EGLContext {
+    public EGLPbufferContext(EGLPbufferDrawable drawable, GLContext shareWith) {
+        super(drawable, shareWith);
+    }
+
+    public int getFloatingPointMode() {
+        return 0; // FIXME ??
+    }
+
+    public void bindPbufferToTexture() {
+        throw new GLException("Not yet implemented");
+    }
+
+    public void releasePbufferFromTexture() {
+        throw new GLException("Not yet implemented");
+    }
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLPbufferDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLPbufferDrawable.java
new file mode 100644
index 000000000..a86045789
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/egl/EGLPbufferDrawable.java
@@ -0,0 +1,99 @@
+/*
+ * 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 com.jogamp.opengl.impl.egl;
+
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.egl.*;
+import com.jogamp.opengl.impl.*;
+
+public class EGLPbufferDrawable extends EGLDrawable {
+    private int texFormat;
+    protected static final boolean useTexture = false; // No yet ..
+
+    protected EGLPbufferDrawable(EGLDrawableFactory factory, NativeWindow target) {
+        super(factory, target);
+        ownEGLDisplay = true;
+
+        // get choosen ones ..
+        GLCapabilities caps = (GLCapabilities) getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration().getChosenCapabilities();
+
+        if(useTexture) {
+            this.texFormat = caps.getAlphaBits() > 0 ? EGL.EGL_TEXTURE_RGBA : EGL.EGL_TEXTURE_RGB ;
+        } else {
+            this.texFormat = EGL.EGL_NO_TEXTURE;
+        }
+
+        if (DEBUG) {
+          System.out.println("Pbuffer config: " + getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration());
+        }
+
+        setRealized(true);
+
+        if (DEBUG) {
+          System.out.println("Created pbuffer: " + this);
+        }
+
+    }
+
+    protected long createSurface(long eglDpy, _EGLConfig eglNativeCfg, long surfaceHandle) {
+        NativeWindow nw = getNativeWindow();
+        int[] attrs = EGLGraphicsConfiguration.CreatePBufferSurfaceAttribList(nw.getWidth(), nw.getHeight(), texFormat);
+        long surf = EGL.eglCreatePbufferSurface(eglDpy, eglNativeCfg, attrs, 0);
+        if (EGL.EGL_NO_SURFACE==surf) {
+            throw new GLException("Creation of window surface (eglCreatePbufferSurface) failed, dim "+nw.getWidth()+"x"+nw.getHeight()+", error 0x"+Integer.toHexString(EGL.eglGetError()));
+        } else if(DEBUG) {
+            System.err.println("PBuffer setSurface result: eglSurface 0x"+Long.toHexString(surf));
+        }
+        ((SurfaceChangeable)nw).setSurfaceHandle(surf);
+        return surf;
+    }
+
+    public GLContext createContext(GLContext shareWith) {
+        return new EGLPbufferContext(this, shareWith);
+    }
+
+    protected void swapBuffersImpl() { 
+        if(DEBUG) {
+            System.err.println("unhandled swapBuffersImpl() called for: "+this);
+        }
+    }
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/gl2/ProjectDouble.java b/src/jogl/classes/com/jogamp/opengl/impl/gl2/ProjectDouble.java
new file mode 100755
index 000000000..2eb3ca5df
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/gl2/ProjectDouble.java
@@ -0,0 +1,1041 @@
+/*
+** License Applicability. Except to the extent portions of this file are
+** made subject to an alternative license as permitted in the SGI Free
+** Software License B, Version 2.0 (the "License"), the contents of this
+** file are subject only to the provisions of the License. You may not use
+** this file except in compliance with the License. You may obtain a copy
+** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
+** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+** 
+** http://oss.sgi.com/projects/FreeB
+** 
+** Note that, as provided in the License, the Software is distributed on an
+** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+**
+** NOTE:  The Original Code (as defined below) has been licensed to Sun
+** Microsystems, Inc. ("Sun") under the SGI Free Software License B
+** (Version 1.1), shown above ("SGI License").   Pursuant to Section
+** 3.2(3) of the SGI License, Sun is distributing the Covered Code to
+** you under an alternative license ("Alternative License").  This
+** Alternative License includes all of the provisions of the SGI License
+** except that Section 2.2 and 11 are omitted.  Any differences between
+** the Alternative License and the SGI License are offered solely by Sun
+** and not by SGI.
+** 
+** Original Code. The Original Code is: OpenGL Sample Implementation,
+** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+** Copyright in any portions created by third parties is as indicated
+** elsewhere herein. All Rights Reserved.
+** 
+** Additional Notice Provisions: The application programming interfaces
+** established by SGI in conjunction with the Original Code are The
+** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
+** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
+** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
+** Window System(R) (Version 1.3), released October 19, 1998. This software
+** was created using the OpenGL(R) version 1.2.1 Sample Implementation
+** published by SGI, but has not been independently verified as being
+** compliant with the OpenGL(R) version 1.2.1 Specification.
+**
+** $Date: 2009-03-13 22:20:29 -0700 (Fri, 13 Mar 2009) $ $Revision: 1867 $
+** $Header$
+*/
+
+/* 
+ * Copyright (c) 2002-2004 LWJGL Project
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are 
+ * met:
+ * 
+ * * Redistributions of source code must retain the above copyright 
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'LWJGL' nor the names of 
+ *   its contributors may be used to endorse or promote products derived 
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * 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.
+ */
+package com.jogamp.opengl.impl.gl2;
+
+import java.nio.*;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+
+/**
+ * Project.java
+ * <p/>
+ * <p/>
+ * Created 11-jan-2004
+ * 
+ * @author Erik Duijs
+ * @author Kenneth Russell
+ */
+public class ProjectDouble {
+  private static final double[] IDENTITY_MATRIX =
+    new double[] {
+      1.0, 0.0, 0.0, 0.0,
+      0.0, 1.0, 0.0, 0.0,
+      0.0, 0.0, 1.0, 0.0,
+      0.0, 0.0, 0.0, 1.0 };
+
+  // Note that we have cloned parts of the implementation in order to
+  // support incoming Buffers. The reason for this is to avoid loading
+  // non-direct buffer subclasses unnecessarily, because doing so can
+  // cause performance decreases on direct buffer operations, at least
+  // on the current HotSpot JVM. It would be nicer (and make the code
+  // simpler) to simply have the array-based entry points delegate to
+  // the versions taking Buffers by wrapping the arrays.
+
+  // Array-based implementation
+  private final double[] matrix = new double[16];
+
+  private final double[][] tempMatrix = new double[4][4];
+  private final double[] in = new double[4];
+  private final double[] out = new double[4];
+
+  private final double[] forward = new double[3];
+  private final double[] side = new double[3];
+  private final double[] up = new double[3];
+  
+  // Buffer-based implementation
+  private DoubleBuffer locbuf;
+  private final DoubleBuffer matrixBuf;
+
+  private final DoubleBuffer tempMatrixBuf;
+  private final DoubleBuffer inBuf;
+  private final DoubleBuffer outBuf;
+
+  private final DoubleBuffer forwardBuf;
+  private final DoubleBuffer sideBuf;
+  private final DoubleBuffer upBuf;
+
+  public ProjectDouble() {
+    // Use direct buffers to avoid loading indirect buffer
+    // implementations for applications trying to avoid doing so.
+    // Slice up one big buffer because some NIO implementations
+    // allocate a huge amount of memory to back even the smallest of
+    // buffers.
+    DoubleBuffer locbuf = InternalBufferUtil.newDoubleBuffer(128);
+    int pos = 0;
+    int sz = 16;
+    matrixBuf = slice(locbuf, pos, sz);
+    pos += sz;
+    tempMatrixBuf = slice(locbuf, pos, sz);
+    pos += sz;
+    sz = 4;
+    inBuf = slice(locbuf, pos, sz);
+    pos += sz;
+    outBuf = slice(locbuf, pos, sz);
+    pos += sz;
+    sz = 3;
+    forwardBuf = slice(locbuf, pos, sz);
+    pos += sz;
+    sideBuf = slice(locbuf, pos, sz);
+    pos += sz;
+    upBuf = slice(locbuf, pos, sz);
+  }
+
+  public void destroy() {
+    if(locbuf!=null) {
+        locbuf.clear();
+        locbuf=null;
+    }
+  }
+
+  private static DoubleBuffer slice(DoubleBuffer buf, int pos, int len) {
+    buf.position(pos);
+    buf.limit(pos + len);
+    return buf.slice();
+  }
+
+  /**
+   * Make matrix an identity matrix
+   */
+  private void __gluMakeIdentityd(DoubleBuffer m) {
+    int oldPos = m.position();
+    m.put(IDENTITY_MATRIX);
+    m.position(oldPos);
+  }
+
+  /**
+   * Make matrix an identity matrix
+   */
+  private void __gluMakeIdentityd(double[] m) {
+    for (int i = 0; i < 16; i++) {
+      m[i] = IDENTITY_MATRIX[i];
+    }
+  }
+
+  /**
+   * Method __gluMultMatrixVecd
+   * 
+   * @param matrix
+   * @param in
+   * @param out
+   */
+  private void __gluMultMatrixVecd(double[] matrix, int matrix_offset, double[] in, double[] out) {
+    for (int i = 0; i < 4; i++) {
+      out[i] =
+        in[0] * matrix[0*4+i+matrix_offset] +
+        in[1] * matrix[1*4+i+matrix_offset] +
+        in[2] * matrix[2*4+i+matrix_offset] +
+        in[3] * matrix[3*4+i+matrix_offset];
+    }
+  }
+
+  /**
+   * Method __gluMultMatrixVecd
+   * 
+   * @param matrix
+   * @param in
+   * @param out
+   */
+  private void __gluMultMatrixVecd(DoubleBuffer matrix, DoubleBuffer in, DoubleBuffer out) {
+    int inPos = in.position();
+    int outPos = out.position();
+    int matrixPos = matrix.position();
+    for (int i = 0; i < 4; i++) {
+      out.put(i + outPos,
+              in.get(0+inPos) * matrix.get(0*4+i+matrixPos) +
+              in.get(1+inPos) * matrix.get(1*4+i+matrixPos) +
+              in.get(2+inPos) * matrix.get(2*4+i+matrixPos) +
+              in.get(3+inPos) * matrix.get(3*4+i+matrixPos));
+    }
+  }
+
+  /**
+   * @param src
+   * @param inverse
+   * 
+   * @return
+   */
+  private boolean __gluInvertMatrixd(double[] src, double[] inverse) {
+    int i, j, k, swap;
+    double t;
+    double[][] temp = tempMatrix;
+
+    for (i = 0; i < 4; i++) {
+      for (j = 0; j < 4; j++) {
+        temp[i][j] = src[i*4+j];
+      }
+    }
+    __gluMakeIdentityd(inverse);
+
+    for (i = 0; i < 4; i++) {
+      //
+      // Look for largest element in column
+      //
+      swap = i;
+      for (j = i + 1; j < 4; j++) {
+        if (Math.abs(temp[j][i]) > Math.abs(temp[i][i])) {
+          swap = j;
+        }
+      }
+
+      if (swap != i) {
+        //
+        // Swap rows.
+        //
+        for (k = 0; k < 4; k++) {
+          t = temp[i][k];
+          temp[i][k] = temp[swap][k];
+          temp[swap][k] = t;
+
+          t = inverse[i*4+k];
+          inverse[i*4+k] = inverse[swap*4+k];
+          inverse[swap*4+k] = t;
+        }
+      }
+
+      if (temp[i][i] == 0) {
+        //
+        // No non-zero pivot. The matrix is singular, which shouldn't
+        // happen. This means the user gave us a bad matrix.
+        //
+        return false;
+      }
+
+      t = temp[i][i];
+      for (k = 0; k < 4; k++) {
+        temp[i][k] /= t;
+        inverse[i*4+k] /= t;
+      }
+      for (j = 0; j < 4; j++) {
+        if (j != i) {
+          t = temp[j][i];
+          for (k = 0; k < 4; k++) {
+            temp[j][k] -= temp[i][k] * t;
+            inverse[j*4+k] -= inverse[i*4+k]*t;
+          }
+        }
+      }
+    }
+    return true;
+  }
+
+  /**
+   * @param src
+   * @param inverse
+   * 
+   * @return
+   */
+  private boolean __gluInvertMatrixd(DoubleBuffer src, DoubleBuffer inverse) {
+    int i, j, k, swap;
+    double t;
+
+    int srcPos = src.position();
+    int invPos = inverse.position();
+
+    DoubleBuffer temp = tempMatrixBuf;
+
+    for (i = 0; i < 4; i++) {
+      for (j = 0; j < 4; j++) {
+        temp.put(i*4+j, src.get(i*4+j + srcPos));
+      }
+    }
+    __gluMakeIdentityd(inverse);
+
+    for (i = 0; i < 4; i++) {
+      //
+      // Look for largest element in column
+      //
+      swap = i;
+      for (j = i + 1; j < 4; j++) {
+        if (Math.abs(temp.get(j*4+i)) > Math.abs(temp.get(i*4+i))) {
+          swap = j;
+        }
+      }
+
+      if (swap != i) {
+        //
+        // Swap rows.
+        //
+        for (k = 0; k < 4; k++) {
+          t = temp.get(i*4+k);
+          temp.put(i*4+k, temp.get(swap*4+k));
+          temp.put(swap*4+k, t);
+
+          t = inverse.get(i*4+k + invPos);
+          inverse.put(i*4+k + invPos, inverse.get(swap*4+k + invPos));
+          inverse.put(swap*4+k + invPos, t);
+        }
+      }
+
+      if (temp.get(i*4+i) == 0) {
+        //
+        // No non-zero pivot. The matrix is singular, which shouldn't
+        // happen. This means the user gave us a bad matrix.
+        //
+        return false;
+      }
+
+      t = temp.get(i*4+i);
+      for (k = 0; k < 4; k++) {
+        temp.put(i*4+k, temp.get(i*4+k) / t);
+        inverse.put(i*4+k + invPos, inverse.get(i*4+k + invPos) / t);
+      }
+      for (j = 0; j < 4; j++) {
+        if (j != i) {
+          t = temp.get(j*4+i);
+          for (k = 0; k < 4; k++) {
+            temp.put(j*4+k, temp.get(j*4+k) - temp.get(i*4+k) * t);
+            inverse.put(j*4+k + invPos, inverse.get(j*4+k + invPos) - inverse.get(i*4+k + invPos) * t);
+          }
+        }
+      }
+    }
+    return true;
+  }
+
+
+  /**
+   * @param a
+   * @param b
+   * @param r
+   */
+  private void __gluMultMatricesd(double[] a, int a_offset, double[] b, int b_offset, double[] r) {
+    for (int i = 0; i < 4; i++) {
+      for (int j = 0; j < 4; j++) {
+        r[i*4+j] =
+          a[i*4+0+a_offset]*b[0*4+j+b_offset] +
+          a[i*4+1+a_offset]*b[1*4+j+b_offset] +
+          a[i*4+2+a_offset]*b[2*4+j+b_offset] +
+          a[i*4+3+a_offset]*b[3*4+j+b_offset];
+      }
+    }
+  }
+
+
+  /**
+   * @param a
+   * @param b
+   * @param r
+   */
+  private void __gluMultMatricesd(DoubleBuffer a, DoubleBuffer b, DoubleBuffer r) {
+    int aPos = a.position();
+    int bPos = b.position();
+    int rPos = r.position();
+
+    for (int i = 0; i < 4; i++) {
+      for (int j = 0; j < 4; j++) {
+        r.put(i*4+j + rPos,
+          a.get(i*4+0+aPos)*b.get(0*4+j+bPos) +
+          a.get(i*4+1+aPos)*b.get(1*4+j+bPos) +
+          a.get(i*4+2+aPos)*b.get(2*4+j+bPos) +
+          a.get(i*4+3+aPos)*b.get(3*4+j+bPos));
+      }
+    }
+  }
+
+  /**
+   * Normalize vector
+   *
+   * @param v
+   */
+  private static void normalize(double[] v) {
+    double r;
+
+    r = Math.sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
+    if ( r == 0.0 )
+      return;
+
+    r = 1.0 / r;
+
+    v[0] *= r;
+    v[1] *= r;
+    v[2] *= r;
+
+    return;
+  }
+
+  /**
+   * Normalize vector
+   *
+   * @param v
+   */
+  private static void normalize(DoubleBuffer v) {
+    double r;
+
+    int vPos = v.position();
+
+    r = Math.sqrt(v.get(0+vPos) * v.get(0+vPos) +
+                  v.get(1+vPos) * v.get(1+vPos) +
+                  v.get(2+vPos) * v.get(2+vPos));
+    if ( r == 0.0 )
+      return;
+
+    r = 1.0 / r;
+
+    v.put(0+vPos, v.get(0+vPos) * r);
+    v.put(1+vPos, v.get(1+vPos) * r);
+    v.put(2+vPos, v.get(2+vPos) * r);
+
+    return;
+  }
+
+
+  /**
+   * Calculate cross-product
+   *
+   * @param v1
+   * @param v2
+   * @param result
+   */
+  private static void cross(double[] v1, double[] v2, double[] result) {
+    result[0] = v1[1] * v2[2] - v1[2] * v2[1];
+    result[1] = v1[2] * v2[0] - v1[0] * v2[2];
+    result[2] = v1[0] * v2[1] - v1[1] * v2[0];
+  }
+
+  /**
+   * Calculate cross-product
+   *
+   * @param v1
+   * @param v2
+   * @param result
+   */
+  private static void cross(DoubleBuffer v1, DoubleBuffer v2, DoubleBuffer result) {
+    int v1Pos = v1.position();
+    int v2Pos = v2.position();
+    int rPos  = result.position();
+
+    result.put(0+rPos, v1.get(1+v1Pos) * v2.get(2+v2Pos) - v1.get(2+v1Pos) * v2.get(1+v2Pos));
+    result.put(1+rPos, v1.get(2+v1Pos) * v2.get(0+v2Pos) - v1.get(0+v1Pos) * v2.get(2+v2Pos));
+    result.put(2+rPos, v1.get(0+v1Pos) * v2.get(1+v2Pos) - v1.get(1+v1Pos) * v2.get(0+v2Pos));
+  }
+
+  /**
+   * Method gluOrtho2D.
+   * 
+   * @param left
+   * @param right
+   * @param bottom
+   * @param top
+   */
+  public void gluOrtho2D(GL2 gl, double left, double right, double bottom, double top) {
+    gl.glOrtho(left, right, bottom, top, -1, 1);
+  }
+
+  /**
+   * Method gluPerspective.
+   * 
+   * @param fovy
+   * @param aspect
+   * @param zNear
+   * @param zFar
+   */
+  public void gluPerspective(GL2 gl, double fovy, double aspect, double zNear, double zFar) {
+    double sine, cotangent, deltaZ;
+    double radians = fovy / 2 * Math.PI / 180;
+
+    deltaZ = zFar - zNear;
+    sine = Math.sin(radians);
+
+    if ((deltaZ == 0) || (sine == 0) || (aspect == 0)) {
+      return;
+    }
+
+    cotangent = Math.cos(radians) / sine;
+
+    __gluMakeIdentityd(matrixBuf);
+
+    matrixBuf.put(0 * 4 + 0, cotangent / aspect);
+    matrixBuf.put(1 * 4 + 1, cotangent);
+    matrixBuf.put(2 * 4 + 2, - (zFar + zNear) / deltaZ);
+    matrixBuf.put(2 * 4 + 3, -1);
+    matrixBuf.put(3 * 4 + 2, -2 * zNear * zFar / deltaZ);
+    matrixBuf.put(3 * 4 + 3, 0);
+
+    gl.glMultMatrixd(matrixBuf);
+  }
+
+  /**
+   * Method gluLookAt
+   * 
+   * @param eyex
+   * @param eyey
+   * @param eyez
+   * @param centerx
+   * @param centery
+   * @param centerz
+   * @param upx
+   * @param upy
+   * @param upz
+   */
+  public void gluLookAt(GL2 gl,
+                        double eyex,
+                        double eyey,
+                        double eyez,
+                        double centerx,
+                        double centery,
+                        double centerz,
+                        double upx,
+                        double upy,
+                        double upz) {
+    DoubleBuffer forward = this.forwardBuf;
+    DoubleBuffer side = this.sideBuf;
+    DoubleBuffer up = this.upBuf;
+
+    forward.put(0, centerx - eyex);
+    forward.put(1, centery - eyey);
+    forward.put(2, centerz - eyez);
+
+    up.put(0, upx);
+    up.put(1, upy);
+    up.put(2, upz);
+
+    normalize(forward);
+
+    /* Side = forward x up */
+    cross(forward, up, side);
+    normalize(side);
+
+    /* Recompute up as: up = side x forward */
+    cross(side, forward, up);
+
+    __gluMakeIdentityd(matrixBuf);
+    matrixBuf.put(0 * 4 + 0, side.get(0));
+    matrixBuf.put(1 * 4 + 0, side.get(1));
+    matrixBuf.put(2 * 4 + 0, side.get(2));
+
+    matrixBuf.put(0 * 4 + 1, up.get(0));
+    matrixBuf.put(1 * 4 + 1, up.get(1));
+    matrixBuf.put(2 * 4 + 1, up.get(2));
+
+    matrixBuf.put(0 * 4 + 2, -forward.get(0));
+    matrixBuf.put(1 * 4 + 2, -forward.get(1));
+    matrixBuf.put(2 * 4 + 2, -forward.get(2));
+
+    gl.glMultMatrixd(matrixBuf);
+    gl.glTranslated(-eyex, -eyey, -eyez);
+  }
+
+  /**
+   * Method gluProject
+   * 
+   * @param objx
+   * @param objy
+   * @param objz
+   * @param modelMatrix
+   * @param projMatrix
+   * @param viewport
+   * @param win_pos
+   * 
+   * @return
+   */
+  public boolean gluProject(double objx,
+                            double objy,
+                            double objz,
+                            double[] modelMatrix,
+                            int modelMatrix_offset,
+                            double[] projMatrix,
+                            int projMatrix_offset,
+                            int[] viewport,
+                            int viewport_offset,
+                            double[] win_pos,
+                            int win_pos_offset ) {
+
+    double[] in = this.in;
+    double[] out = this.out;
+
+    in[0] = objx;
+    in[1] = objy;
+    in[2] = objz;
+    in[3] = 1.0;
+
+    __gluMultMatrixVecd(modelMatrix, modelMatrix_offset, in, out);
+    __gluMultMatrixVecd(projMatrix, projMatrix_offset, out, in);
+
+    if (in[3] == 0.0)
+      return false;
+
+    in[3] = (1.0 / in[3]) * 0.5;
+
+    // Map x, y and z to range 0-1
+    in[0] = in[0] * in[3] + 0.5f;
+    in[1] = in[1] * in[3] + 0.5f;
+    in[2] = in[2] * in[3] + 0.5f;
+
+    // Map x,y to viewport
+    win_pos[0+win_pos_offset] = in[0] * viewport[2+viewport_offset] + viewport[0+viewport_offset];
+    win_pos[1+win_pos_offset] = in[1] * viewport[3+viewport_offset] + viewport[1+viewport_offset];
+    win_pos[2+win_pos_offset] = in[2];
+
+    return true;
+  }
+
+  /**
+   * Method gluProject
+   * 
+   * @param objx
+   * @param objy
+   * @param objz
+   * @param modelMatrix
+   * @param projMatrix
+   * @param viewport
+   * @param win_pos
+   * 
+   * @return
+   */
+  public boolean gluProject(double objx,
+                            double objy,
+                            double objz,
+                            DoubleBuffer modelMatrix,
+                            DoubleBuffer projMatrix,
+                            IntBuffer viewport,
+                            DoubleBuffer win_pos) {
+
+    DoubleBuffer in = this.inBuf;
+    DoubleBuffer out = this.outBuf;
+
+    in.put(0, objx);
+    in.put(1, objy);
+    in.put(2, objz);
+    in.put(3, 1.0);
+
+    __gluMultMatrixVecd(modelMatrix, in, out);
+    __gluMultMatrixVecd(projMatrix, out, in);
+
+    if (in.get(3) == 0.0)
+      return false;
+
+    in.put(3, (1.0 / in.get(3)) * 0.5);
+
+    // Map x, y and z to range 0-1
+    in.put(0, in.get(0) * in.get(3) + 0.5f);
+    in.put(1, in.get(1) * in.get(3) + 0.5f);
+    in.put(2, in.get(2) * in.get(3) + 0.5f);
+
+    // Map x,y to viewport
+    int vPos = viewport.position();
+    int wPos = win_pos.position();
+    win_pos.put(0+wPos, in.get(0) * viewport.get(2+vPos) + viewport.get(0+vPos));
+    win_pos.put(1+wPos, in.get(1) * viewport.get(3+vPos) + viewport.get(1+vPos));
+    win_pos.put(2+wPos, in.get(2));
+
+    return true;
+  }
+
+
+  /**
+   * Method gluUnproject
+   * 
+   * @param winx
+   * @param winy
+   * @param winz
+   * @param modelMatrix
+   * @param projMatrix
+   * @param viewport
+   * @param obj_pos
+   * 
+   * @return
+   */
+  public boolean gluUnProject(double winx,
+                              double winy,
+                              double winz,
+                              double[] modelMatrix,
+                              int modelMatrix_offset,
+                              double[] projMatrix,
+                              int projMatrix_offset,
+                              int[] viewport,
+                              int viewport_offset,
+                              double[] obj_pos,
+                              int obj_pos_offset) {
+    double[] in = this.in;
+    double[] out = this.out;
+
+    __gluMultMatricesd(modelMatrix, modelMatrix_offset, projMatrix, projMatrix_offset, matrix);
+
+    if (!__gluInvertMatrixd(matrix, matrix))
+      return false;
+
+    in[0] = winx;
+    in[1] = winy;
+    in[2] = winz;
+    in[3] = 1.0;
+
+    // Map x and y from window coordinates
+    in[0] = (in[0] - viewport[0+viewport_offset]) / viewport[2+viewport_offset];
+    in[1] = (in[1] - viewport[1+viewport_offset]) / viewport[3+viewport_offset];
+
+    // Map to range -1 to 1
+    in[0] = in[0] * 2 - 1;
+    in[1] = in[1] * 2 - 1;
+    in[2] = in[2] * 2 - 1;
+
+    __gluMultMatrixVecd(matrix, 0, in, out);
+
+    if (out[3] == 0.0)
+      return false;
+
+    out[3] = 1.0 / out[3];
+
+    obj_pos[0+obj_pos_offset] = out[0] * out[3];
+    obj_pos[1+obj_pos_offset] = out[1] * out[3];
+    obj_pos[2+obj_pos_offset] = out[2] * out[3];
+
+    return true;
+  }
+
+
+  /**
+   * Method gluUnproject
+   * 
+   * @param winx
+   * @param winy
+   * @param winz
+   * @param modelMatrix
+   * @param projMatrix
+   * @param viewport
+   * @param obj_pos
+   * 
+   * @return
+   */
+  public boolean gluUnProject(double winx,
+                              double winy,
+                              double winz,
+                              DoubleBuffer modelMatrix,
+                              DoubleBuffer projMatrix,
+                              IntBuffer viewport,
+                              DoubleBuffer obj_pos) {
+    DoubleBuffer in = this.inBuf;
+    DoubleBuffer out = this.outBuf;
+
+    __gluMultMatricesd(modelMatrix, projMatrix, matrixBuf);
+
+    if (!__gluInvertMatrixd(matrixBuf, matrixBuf))
+      return false;
+
+    in.put(0, winx);
+    in.put(1, winy);
+    in.put(2, winz);
+    in.put(3, 1.0);
+
+    // Map x and y from window coordinates
+    int vPos = viewport.position();
+    int oPos = obj_pos.position();
+    in.put(0, (in.get(0) - viewport.get(0+vPos)) / viewport.get(2+vPos));
+    in.put(1, (in.get(1) - viewport.get(1+vPos)) / viewport.get(3+vPos));
+
+    // Map to range -1 to 1
+    in.put(0, in.get(0) * 2 - 1);
+    in.put(1, in.get(1) * 2 - 1);
+    in.put(2, in.get(2) * 2 - 1);
+
+    __gluMultMatrixVecd(matrixBuf, in, out);
+
+    if (out.get(3) == 0.0)
+      return false;
+
+    out.put(3, 1.0 / out.get(3));
+
+    obj_pos.put(0+oPos, out.get(0) * out.get(3));
+    obj_pos.put(1+oPos, out.get(1) * out.get(3));
+    obj_pos.put(2+oPos, out.get(2) * out.get(3));
+
+    return true;
+  }
+
+
+  /**
+   * Method gluUnproject4
+   * 
+   * @param winx
+   * @param winy
+   * @param winz
+   * @param clipw
+   * @param modelMatrix
+   * @param projMatrix
+   * @param viewport
+   * @param near
+   * @param far
+   * @param obj_pos
+   * 
+   * @return
+   */
+  public boolean gluUnProject4(double winx,
+                               double winy,
+                               double winz,
+                               double clipw,
+                               double[] modelMatrix,
+                               int modelMatrix_offset,
+                               double[] projMatrix,
+                               int projMatrix_offset,
+                               int[] viewport,
+                               int viewport_offset,
+                               double near,
+                               double far,
+                               double[] obj_pos,
+                               int obj_pos_offset ) {
+    double[] in = this.in;
+    double[] out = this.out;
+
+    __gluMultMatricesd(modelMatrix, modelMatrix_offset, projMatrix, projMatrix_offset, matrix);
+
+    if (!__gluInvertMatrixd(matrix, matrix))
+      return false;
+
+    in[0] = winx;
+    in[1] = winy;
+    in[2] = winz;
+    in[3] = clipw;
+
+    // Map x and y from window coordinates
+    in[0] = (in[0] - viewport[0+viewport_offset]) / viewport[2+viewport_offset];
+    in[1] = (in[1] - viewport[1+viewport_offset]) / viewport[3+viewport_offset];
+    in[2] = (in[2] - near) / (far - near);
+
+    // Map to range -1 to 1
+    in[0] = in[0] * 2 - 1;
+    in[1] = in[1] * 2 - 1;
+    in[2] = in[2] * 2 - 1;
+
+    __gluMultMatrixVecd(matrix, 0, in, out);
+
+    if (out[3] == 0.0)
+      return false;
+
+    obj_pos[0+obj_pos_offset] = out[0];
+    obj_pos[1+obj_pos_offset] = out[1];
+    obj_pos[2+obj_pos_offset] = out[2];
+    obj_pos[3+obj_pos_offset] = out[3];
+    return true;
+  }
+
+  /**
+   * Method gluUnproject4
+   * 
+   * @param winx
+   * @param winy
+   * @param winz
+   * @param clipw
+   * @param modelMatrix
+   * @param projMatrix
+   * @param viewport
+   * @param near
+   * @param far
+   * @param obj_pos
+   * 
+   * @return
+   */
+  public boolean gluUnProject4(double winx,
+                               double winy,
+                               double winz,
+                               double clipw,
+                               DoubleBuffer modelMatrix,
+                               DoubleBuffer projMatrix,
+                               IntBuffer viewport,
+                               double near,
+                               double far,
+                               DoubleBuffer obj_pos) {
+    DoubleBuffer in = this.inBuf;
+    DoubleBuffer out = this.outBuf;
+
+    __gluMultMatricesd(modelMatrix, projMatrix, matrixBuf);
+
+    if (!__gluInvertMatrixd(matrixBuf, matrixBuf))
+      return false;
+
+    in.put(0, winx);
+    in.put(1, winy);
+    in.put(2, winz);
+    in.put(3, clipw);
+
+    // Map x and y from window coordinates
+    int vPos = viewport.position();
+    in.put(0, (in.get(0) - viewport.get(0+vPos)) / viewport.get(2+vPos));
+    in.put(1, (in.get(1) - viewport.get(1+vPos)) / viewport.get(3+vPos));
+    in.put(2, (in.get(2) - near) / (far - near));
+
+    // Map to range -1 to 1
+    in.put(0, in.get(0) * 2 - 1);
+    in.put(1, in.get(1) * 2 - 1);
+    in.put(2, in.get(2) * 2 - 1);
+
+    __gluMultMatrixVecd(matrixBuf, in, out);
+
+    if (out.get(3) == 0.0)
+      return false;
+
+    int oPos = obj_pos.position();
+    obj_pos.put(0+oPos, out.get(0));
+    obj_pos.put(1+oPos, out.get(1));
+    obj_pos.put(2+oPos, out.get(2));
+    obj_pos.put(3+oPos, out.get(3));
+    return true;
+  }
+
+
+  /**
+   * Method gluPickMatrix
+   * 
+   * @param x
+   * @param y
+   * @param deltaX
+   * @param deltaY
+   * @param viewport
+   */
+  public void gluPickMatrix(GL2 gl,
+                            double x,
+                            double y,
+                            double deltaX,
+                            double deltaY,
+                            IntBuffer viewport) {
+    if (deltaX <= 0 || deltaY <= 0) {
+      return;
+    }
+
+    /* Translate and scale the picked region to the entire window */
+    int vPos = viewport.position();
+    gl.glTranslated((viewport.get(2+vPos) - 2 * (x - viewport.get(0+vPos))) / deltaX,
+                    (viewport.get(3+vPos) - 2 * (y - viewport.get(1+vPos))) / deltaY,
+                    0);
+    gl.glScaled(viewport.get(2) / deltaX, viewport.get(3) / deltaY, 1.0);
+  }
+
+  /**
+   * Method gluPickMatrix
+   * 
+   * @param x
+   * @param y
+   * @param deltaX
+   * @param deltaY
+   * @param viewport
+   * @param viewport_offset
+   */
+  public void gluPickMatrix(GL2 gl,
+                            double x,
+                            double y,
+                            double deltaX,
+                            double deltaY,
+                            int[] viewport,
+                            int viewport_offset) {
+    if (deltaX <= 0 || deltaY <= 0) {
+      return;
+    }
+
+    /* Translate and scale the picked region to the entire window */
+    gl.glTranslated((viewport[2+viewport_offset] - 2 * (x - viewport[0+viewport_offset])) / deltaX,
+                    (viewport[3+viewport_offset] - 2 * (y - viewport[1+viewport_offset])) / deltaY,
+                    0);
+    gl.glScaled(viewport[2+viewport_offset] / deltaX, viewport[3+viewport_offset] / deltaY, 1.0);
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/gl2/Util.java b/src/jogl/classes/com/jogamp/opengl/impl/gl2/Util.java
new file mode 100644
index 000000000..a542dcf19
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/gl2/Util.java
@@ -0,0 +1,244 @@
+/* 
+ * Copyright (c) 2002-2004 LWJGL Project
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are 
+ * met:
+ * 
+ * * Redistributions of source code must retain the above copyright 
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'LWJGL' nor the names of 
+ *   its contributors may be used to endorse or promote products derived 
+ *   from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.gl2;
+
+import com.jogamp.opengl.impl.*;
+
+import java.nio.IntBuffer;
+import javax.media.opengl.*;
+
+/**
+ * Util.java
+ * <p/>
+ * <p/>
+ * Created 7-jan-2004
+ *
+ * @author Erik Duijs
+ */
+class Util {
+
+  /**
+   * temp int[] of one for getting an int from some GL functions
+   */
+  private int[] scratch = new int[1];
+
+  /**
+   * Return ceiling of integer division
+   *
+   * @param a
+   * @param b
+   *
+   * @return int
+   */
+  protected static int ceil(int a, int b) {
+    return (a % b == 0 ? a / b : a / b + 1);
+  }
+
+  /**
+   * Method compPerPix.
+   *
+   * @param format
+   *
+   * @return int
+   */
+  protected static int compPerPix(int format) {
+    /* Determine number of components per pixel */
+    switch ( format ) {
+    case GL2.GL_COLOR_INDEX:
+    case GL2.GL_STENCIL_INDEX:
+    case GL2.GL_DEPTH_COMPONENT:
+    case GL2.GL_RED:
+    case GL2.GL_GREEN:
+    case GL2.GL_BLUE:
+    case GL2.GL_ALPHA:
+    case GL2.GL_LUMINANCE:
+      return 1;
+    case GL2.GL_LUMINANCE_ALPHA:
+      return 2;
+    case GL2.GL_RGB:
+    case GL2.GL_BGR:
+      return 3;
+    case GL2.GL_RGBA:
+    case GL2.GL_BGRA:
+      return 4;
+    default :
+      return -1;
+    }
+  }
+
+  /**
+   * Method nearestPower.
+   * <p/>
+   * Compute the nearest power of 2 number.  This algorithm is a little strange, but it works quite well.
+   *
+   * @param value
+   *
+   * @return int
+   */
+  protected static int nearestPower(int value) {
+    int i;
+
+    i = 1;
+
+    /* Error! */
+    if ( value == 0 )
+      return -1;
+
+    for ( ; ; ) {
+      if ( value == 1 ) {
+        return i;
+      } else if ( value == 3 ) {
+        return i << 2;
+      }
+      value >>= 1;
+      i <<= 1;
+    }
+  }
+
+  /**
+   * Method bytesPerPixel.
+   *
+   * @param format
+   * @param type
+   *
+   * @return int
+   */
+  protected static int bytesPerPixel(int format, int type) {
+    int n, m;
+
+    switch ( format ) {
+    case GL2.GL_COLOR_INDEX:
+    case GL2.GL_STENCIL_INDEX:
+    case GL2.GL_DEPTH_COMPONENT:
+    case GL2.GL_RED:
+    case GL2.GL_GREEN:
+    case GL2.GL_BLUE:
+    case GL2.GL_ALPHA:
+    case GL2.GL_LUMINANCE:
+      n = 1;
+      break;
+    case GL2.GL_LUMINANCE_ALPHA:
+      n = 2;
+      break;
+    case GL2.GL_RGB:
+    case GL2.GL_BGR:
+      n = 3;
+      break;
+    case GL2.GL_RGBA:
+    case GL2.GL_BGRA:
+      n = 4;
+      break;
+    default :
+      n = 0;
+    }
+
+    switch ( type ) {
+    case GL2.GL_UNSIGNED_BYTE:
+      m = 1;
+      break;
+    case GL2.GL_BYTE:
+      m = 1;
+      break;
+    case GL2.GL_BITMAP:
+      m = 1;
+      break;
+    case GL2.GL_UNSIGNED_SHORT:
+      m = 2;
+      break;
+    case GL2.GL_SHORT:
+      m = 2;
+      break;
+    case GL2.GL_UNSIGNED_INT:
+      m = 4;
+      break;
+    case GL2.GL_INT:
+      m = 4;
+      break;
+    case GL2.GL_FLOAT:
+      m = 4;
+      break;
+    default :
+      m = 0;
+    }
+
+    return n * m;
+  }
+
+  /**
+   * Convenience method for returning an int, rather than getting it out of a buffer yourself.
+   *
+   * @param what
+   *
+   * @return int
+   */
+  protected int glGetIntegerv(GL gl, int what) {
+    gl.glGetIntegerv(what, scratch, 0);
+    return scratch[0];
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/gl2/fixme/GLObjectTracker.java b/src/jogl/classes/com/jogamp/opengl/impl/gl2/fixme/GLObjectTracker.java
new file mode 100755
index 000000000..3e3b6ae87
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/gl2/fixme/GLObjectTracker.java
@@ -0,0 +1,835 @@
+/*
+ * 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 com.jogamp.opengl.impl.gl2;
+
+import com.jogamp.opengl.impl.*;
+
+import java.nio.*;
+import javax.media.opengl.*;
+
+/** 
+ * Tracks the creation of server-side OpenGL objects which can be
+ * shared between contexts. Ordinarily, when an OpenGL context is
+ * deleted and no other contexts are sharing server-side objects with
+ * it, all of the server-side objects are automatically deleted by the
+ * OpenGL implementation. It is not necessary for the end user to
+ * explicitly delete these objects. However, when the Java2D/OpenGL
+ * pipeline is active and frame buffer objects are being used for
+ * rendering, it is necessary for all OpenGL contexts created by JOGL
+ * to share server-side objects with the Java2D OpenGL context. This
+ * means that these objects "leak" into the namespace used by Java2D.
+ * In order to prevent memory leaks and to present the same
+ * programming model to the end user, it is necessary to track the
+ * creation and destruction of all of these server-side OpenGL objects
+ * and to explicitly release them when all of the JOGL-created
+ * contexts which can see them have been released. <P>
+ *
+ * The {@link #ref ref} and {@link #unref unref} methods should be
+ * used during the creation and destruction of OpenGL contexts by JOGL
+ * in order to update the liveness of the objects being tracked. The
+ * various other methods should be called by the OpenGL binding in the
+ * various named methods.
+ */
+
+public class GLObjectTracker {
+  private static final boolean DEBUG = Debug.debug("GLObjectTracker");
+
+  //----------------------------------------------------------------------
+  // Adders
+  //
+
+  // glGenBuffers
+  public synchronized void addBuffers(int n, IntBuffer ids) {
+    add(getList(BUFFERS), n, ids);
+  }
+
+  // glGenBuffers
+  public synchronized void addBuffers(int n, int[] ids, int ids_offset) {
+    add(getList(BUFFERS), n, ids, ids_offset);
+  }
+
+  // glGenBuffersARB
+  public synchronized void addBuffersARB(int n, IntBuffer ids) {
+    add(getList(BUFFERS_ARB), n, ids);
+  }
+
+  // glGenBuffersARB
+  public synchronized void addBuffersARB(int n, int[] ids, int ids_offset) {
+    add(getList(BUFFERS_ARB), n, ids, ids_offset);
+  }
+
+  // glGenFencesAPPLE
+  public synchronized void addFencesAPPLE(int n, IntBuffer ids) {
+    add(getList(FENCES_APPLE), n, ids);
+  }
+
+  // glGenFencesAPPLE
+  public synchronized void addFencesAPPLE(int n, int[] ids, int ids_offset) {
+    add(getList(FENCES_APPLE), n, ids, ids_offset);
+  }
+
+  // glGenFencesNV
+  public synchronized void addFencesNV(int n, IntBuffer ids) {
+    add(getList(FENCES_NV), n, ids);
+  }
+
+  // glGenFencesNV
+  public synchronized void addFencesNV(int n, int[] ids, int ids_offset) {
+    add(getList(FENCES_NV), n, ids, ids_offset);
+  }
+
+  // glGenFragmentShadersATI
+  public synchronized void addFragmentShadersATI(int start, int n) {
+    add(getList(FRAGMENT_SHADERS_ATI), start, n);
+  }
+
+  // glGenFramebuffersEXT
+  public synchronized void addFramebuffersEXT(int n, IntBuffer ids) {
+    add(getList(FRAMEBUFFERS_EXT), n, ids);
+  }
+
+  // glGenFramebuffersEXT
+  public synchronized void addFramebuffersEXT(int n, int[] ids, int ids_offset) {
+    add(getList(FRAMEBUFFERS_EXT), n, ids, ids_offset);
+  }
+  
+  // glGenLists
+  public synchronized void addLists(int start, int n) {
+    add(getList(LISTS), start, n);
+  }
+
+  // glGenOcclusionQueriesNV
+  public synchronized void addOcclusionQueriesNV(int n, IntBuffer ids) {
+    add(getList(OCCLUSION_QUERIES_NV), n, ids);
+  }
+
+  // glGenOcclusionQueriesNV
+  public synchronized void addOcclusionQueriesNV(int n, int[] ids, int ids_offset) {
+    add(getList(OCCLUSION_QUERIES_NV), n, ids, ids_offset);
+  }
+
+  // glCreateProgram
+  public synchronized void addProgramObject(int obj) {
+    add(getList(PROGRAM_OBJECTS), obj, 1);
+  }
+
+  // glCreateProgramObjectARB
+  public synchronized void addProgramObjectARB(int obj) {
+    add(getList(PROGRAM_AND_SHADER_OBJECTS_ARB), obj, 1);
+  }
+
+  // glGenProgramsARB
+  public synchronized void addProgramsARB(int n, IntBuffer ids) {
+    add(getList(PROGRAMS_ARB), n, ids);
+  }
+
+  // glGenProgramsARB
+  public synchronized void addProgramsARB(int n, int[] ids, int ids_offset) {
+    add(getList(PROGRAMS_ARB), n, ids, ids_offset);
+  }
+
+  // glGenProgramsNV
+  public synchronized void addProgramsNV(int n, IntBuffer ids) {
+    add(getList(PROGRAMS_NV), n, ids);
+  }
+
+  // glGenProgramsNV
+  public synchronized void addProgramsNV(int n, int[] ids, int ids_offset) {
+    add(getList(PROGRAMS_NV), n, ids, ids_offset);
+  }
+
+  // glGenQueries
+  public synchronized void addQueries(int n, IntBuffer ids) {
+    add(getList(QUERIES), n, ids);
+  }
+
+  // glGenQueries
+  public synchronized void addQueries(int n, int[] ids, int ids_offset) {
+    add(getList(QUERIES), n, ids, ids_offset);
+  }
+
+  // glGenQueriesARB
+  public synchronized void addQueriesARB(int n, IntBuffer ids) {
+    add(getList(QUERIES_ARB), n, ids);
+  }
+
+  // glGenQueriesARB
+  public synchronized void addQueriesARB(int n, int[] ids, int ids_offset) {
+    add(getList(QUERIES_ARB), n, ids, ids_offset);
+  }
+
+  // glGenRenderbuffersEXT
+  public synchronized void addRenderbuffersEXT(int n, IntBuffer ids) {
+    add(getList(RENDERBUFFERS_EXT), n, ids);
+  }
+
+  // glGenRenderbuffersEXT
+  public synchronized void addRenderbuffersEXT(int n, int[] ids, int ids_offset) {
+    add(getList(RENDERBUFFERS_EXT), n, ids, ids_offset);
+  }
+
+  // glCreateShader
+  public synchronized void addShaderObject(int obj) {
+    add(getList(SHADER_OBJECTS), obj, 1);
+  }
+
+  // glCreateShaderObjectARB
+  public synchronized void addShaderObjectARB(int obj) {
+    add(getList(PROGRAM_AND_SHADER_OBJECTS_ARB), obj, 1);
+  }
+
+  // glGenTextures
+  public synchronized void addTextures(int n, IntBuffer ids) {
+    add(getList(TEXTURES), n, ids);
+  }
+
+  // glGenTextures
+  public synchronized void addTextures(int n, int[] ids, int ids_offset) {
+    add(getList(TEXTURES), n, ids, ids_offset);
+  }
+
+  // glGenVertexArraysAPPLE
+  public synchronized void addVertexArraysAPPLE(int n, IntBuffer ids) {
+    add(getList(VERTEX_ARRAYS_APPLE), n, ids);
+  }
+
+  // glGenVertexArraysAPPLE
+  public synchronized void addVertexArraysAPPLE(int n, int[] ids, int ids_offset) {
+    add(getList(VERTEX_ARRAYS_APPLE), n, ids, ids_offset);
+  }
+
+  // glGenVertexShadersEXT
+  public synchronized void addVertexShadersEXT(int start, int n) {
+    add(getList(VERTEX_SHADERS_EXT), start, n);
+  }
+
+  //----------------------------------------------------------------------
+  // Removers
+  //
+
+  // glDeleteBuffers
+  public synchronized void removeBuffers(int n, IntBuffer ids) {
+    remove(getList(BUFFERS), n, ids);
+  }
+
+  // glDeleteBuffers
+  public synchronized void removeBuffers(int n, int[] ids, int ids_offset) {
+    remove(getList(BUFFERS), n, ids, ids_offset);
+  }
+
+  // glDeleteBuffersARB
+  public synchronized void removeBuffersARB(int n, IntBuffer ids) {
+    remove(getList(BUFFERS_ARB), n, ids);
+  }
+
+  // glDeleteBuffersARB
+  public synchronized void removeBuffersARB(int n, int[] ids, int ids_offset) {
+    remove(getList(BUFFERS_ARB), n, ids, ids_offset);
+  }
+
+  // glDeleteFencesAPPLE
+  public synchronized void removeFencesAPPLE(int n, IntBuffer ids) {
+    remove(getList(FENCES_APPLE), n, ids);
+  }
+
+  // glDeleteFencesAPPLE
+  public synchronized void removeFencesAPPLE(int n, int[] ids, int ids_offset) {
+    remove(getList(FENCES_APPLE), n, ids, ids_offset);
+  }
+
+  // glDeleteFencesNV
+  public synchronized void removeFencesNV(int n, IntBuffer ids) {
+    remove(getList(FENCES_NV), n, ids);
+  }
+
+  // glDeleteFencesNV
+  public synchronized void removeFencesNV(int n, int[] ids, int ids_offset) {
+    remove(getList(FENCES_NV), n, ids, ids_offset);
+  }
+
+  // glDeleteFragmentShaderATI
+  public synchronized void removeFragmentShaderATI(int obj) {
+    remove(getList(FRAGMENT_SHADERS_ATI), obj, 1);
+  }
+
+  // glDeleteFramebuffersEXT
+  public synchronized void removeFramebuffersEXT(int n, IntBuffer ids) {
+    remove(getList(FRAMEBUFFERS_EXT), n, ids);
+  }
+
+  // glDeleteFramebuffersEXT
+  public synchronized void removeFramebuffersEXT(int n, int[] ids, int ids_offset) {
+    remove(getList(FRAMEBUFFERS_EXT), n, ids, ids_offset);
+  }
+  
+  // glDeleteLists
+  public synchronized void removeLists(int start, int n) {
+    remove(getList(LISTS), start, n);
+  }
+
+  // glDeleteOcclusionQueriesNV
+  public synchronized void removeOcclusionQueriesNV(int n, IntBuffer ids) {
+    remove(getList(OCCLUSION_QUERIES_NV), n, ids);
+  }
+
+  // glDeleteOcclusionQueriesNV
+  public synchronized void removeOcclusionQueriesNV(int n, int[] ids, int ids_offset) {
+    remove(getList(OCCLUSION_QUERIES_NV), n, ids, ids_offset);
+  }
+
+  // glDeleteProgram
+  public synchronized void removeProgramObject(int obj) {
+    remove(getList(PROGRAM_OBJECTS), obj, 1);
+  }
+
+  // glDeleteObjectARB
+  public synchronized void removeProgramOrShaderObjectARB(int obj) {
+    remove(getList(PROGRAM_AND_SHADER_OBJECTS_ARB), obj, 1);
+  }
+
+  // glDeleteProgramsARB
+  public synchronized void removeProgramsARB(int n, IntBuffer ids) {
+    remove(getList(PROGRAMS_ARB), n, ids);
+  }
+
+  // glDeleteProgramsARB
+  public synchronized void removeProgramsARB(int n, int[] ids, int ids_offset) {
+    remove(getList(PROGRAMS_ARB), n, ids, ids_offset);
+  }
+
+  // glDeleteProgramsNV
+  public synchronized void removeProgramsNV(int n, IntBuffer ids) {
+    remove(getList(PROGRAMS_NV), n, ids);
+  }
+
+  // glDeleteProgramsNV
+  public synchronized void removeProgramsNV(int n, int[] ids, int ids_offset) {
+    remove(getList(PROGRAMS_NV), n, ids, ids_offset);
+  }
+
+  // glDeleteQueries
+  public synchronized void removeQueries(int n, IntBuffer ids) {
+    remove(getList(QUERIES), n, ids);
+  }
+
+  // glDeleteQueries
+  public synchronized void removeQueries(int n, int[] ids, int ids_offset) {
+    remove(getList(QUERIES), n, ids, ids_offset);
+  }
+
+  // glDeleteQueriesARB
+  public synchronized void removeQueriesARB(int n, IntBuffer ids) {
+    remove(getList(QUERIES_ARB), n, ids);
+  }
+
+  // glDeleteQueriesARB
+  public synchronized void removeQueriesARB(int n, int[] ids, int ids_offset) {
+    remove(getList(QUERIES_ARB), n, ids, ids_offset);
+  }
+
+  // glDeleteRenderbuffersEXT
+  public synchronized void removeRenderbuffersEXT(int n, IntBuffer ids) {
+    remove(getList(RENDERBUFFERS_EXT), n, ids);
+  }
+
+  // glDeleteRenderbuffersEXT
+  public synchronized void removeRenderbuffersEXT(int n, int[] ids, int ids_offset) {
+    remove(getList(RENDERBUFFERS_EXT), n, ids, ids_offset);
+  }
+
+  // glDeleteShader
+  public synchronized void removeShaderObject(int obj) {
+    remove(getList(SHADER_OBJECTS), obj, 1);
+  }
+
+  // glDeleteTextures
+  public synchronized void removeTextures(int n, IntBuffer ids) {
+    remove(getList(TEXTURES), n, ids);
+  }
+
+  // glDeleteTextures
+  public synchronized void removeTextures(int n, int[] ids, int ids_offset) {
+    remove(getList(TEXTURES), n, ids, ids_offset);
+  }
+
+  // glDeleteVertexArraysAPPLE
+  public synchronized void removeVertexArraysAPPLE(int n, IntBuffer ids) {
+    remove(getList(VERTEX_ARRAYS_APPLE), n, ids);
+  }
+
+  // glDeleteVertexArraysAPPLE
+  public synchronized void removeVertexArraysAPPLE(int n, int[] ids, int ids_offset) {
+    remove(getList(VERTEX_ARRAYS_APPLE), n, ids, ids_offset);
+  }
+
+  // glDeleteVertexShaderEXT
+  public synchronized void removeVertexShaderEXT(int obj) {
+    remove(getList(VERTEX_SHADERS_EXT), obj, 1);
+  }
+
+  //----------------------------------------------------------------------
+  // Reference count maintenance and manual deletion
+  //
+
+  public synchronized void transferAll(GLObjectTracker other) {
+    for (int i = 0; i < lists.length; i++) {
+      getList(i).addAll(other.lists[i]);
+      if (other.lists[i] != null) {
+        other.lists[i].clear();
+      }
+    }
+    dirty = true;
+  }
+
+  public synchronized void ref() {
+    ++refCount;
+  }
+
+  public void unref(GLObjectTracker deletedObjectPool) {
+    boolean tryDelete = false;
+    synchronized (this) {
+      if (--refCount == 0) {
+        tryDelete = true;
+      }
+    }
+    if (tryDelete) {
+      // See whether we should try to do the work now or whether we
+      // have to postpone
+      GLContext cur = GLContext.getCurrent();
+      if ((cur != null) &&
+          (cur instanceof GLContextImpl)) {
+        GLContextImpl curImpl = (GLContextImpl) cur;
+        if (deletedObjectPool != null &&
+            deletedObjectPool == curImpl.getDeletedObjectTracker()) {
+          // Should be safe to delete these objects now
+          try {
+            delete((GL2)curImpl.getGL());
+            return;
+          } catch (GLException e) {
+            // Shouldn't happen, but if it does, transfer all objects
+            // to the deleted object pool hoping we can later clean
+            // them up
+            deletedObjectPool.transferAll(this);
+            throw(e);
+          }
+        }
+      }
+      // If we get here, we couldn't attempt to delete the objects
+      // right now; instead try to transfer them to the
+      // deletedObjectPool for later cleanup (FIXME: should consider
+      // throwing an exception if deletedObjectPool is null, since
+      // that shouldn't happen)
+      if (DEBUG) {
+        String s = null;
+        if (cur == null) {
+          s = "current context was null";
+        } else if (!(cur instanceof GLContextImpl)) {
+          s = "current context was not a GLContextImpl";
+        } else if (deletedObjectPool == null) {
+          s = "no current deletedObjectPool";
+        } else if (deletedObjectPool != ((GLContextImpl) cur).getDeletedObjectTracker()) {
+          s = "deletedObjectTracker didn't match";
+          if (((GLContextImpl) cur).getDeletedObjectTracker() == null) {
+            s += " (other was null)";
+          }
+        } else {
+          s = "unknown reason";
+        }
+        System.err.println("Deferred destruction of server-side OpenGL objects into " + deletedObjectPool + ": " + s);
+      }
+
+      if (deletedObjectPool != null) {
+        deletedObjectPool.transferAll(this);
+      }
+    }
+  }
+
+  public void clean(GL2 gl) {
+    if (dirty) {
+      try {
+        delete(gl);
+        dirty = false;
+      } catch (GLException e) {
+        // FIXME: not sure what to do here; probably a bad idea to be
+        // throwing exceptions during an otherwise-successful makeCurrent
+      }
+    }
+  }
+
+
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  //
+
+  // Kinds of sharable server-side OpenGL objects this class tracks
+  private static final int BUFFERS                        = 0;
+  private static final int BUFFERS_ARB                    = 1;
+  private static final int FENCES_APPLE                   = 2;
+  private static final int FENCES_NV                      = 3;
+  private static final int FRAGMENT_SHADERS_ATI           = 4;
+  private static final int FRAMEBUFFERS_EXT               = 5;
+  private static final int LISTS                          = 6;
+  private static final int OCCLUSION_QUERIES_NV           = 7;
+  private static final int PROGRAM_AND_SHADER_OBJECTS_ARB = 8;
+  private static final int PROGRAM_OBJECTS                = 9;
+  private static final int PROGRAMS_ARB                   = 10;
+  private static final int PROGRAMS_NV                    = 11;
+  private static final int QUERIES                        = 12;
+  private static final int QUERIES_ARB                    = 13;
+  private static final int RENDERBUFFERS_EXT              = 14;
+  private static final int SHADER_OBJECTS                 = 15;
+  private static final int TEXTURES                       = 16;
+  private static final int VERTEX_ARRAYS_APPLE            = 17;
+  private static final int VERTEX_SHADERS_EXT             = 18;
+  private static final int NUM_OBJECT_TYPES               = 19;
+
+  static abstract class Deleter {
+    public abstract void delete(GL2 gl, int obj);
+  }
+
+  static class ObjectList {
+    private static final int MIN_CAPACITY = 4;
+
+    private int size;
+    private int capacity;
+    private int[] data;
+    private Deleter deleter;
+    private String name;
+
+    public ObjectList(Deleter deleter) {
+      this.deleter = deleter;
+      clear();
+    }
+
+    public void add(int obj) {
+      if (size == capacity) {
+        int newCapacity = 2 * capacity;
+        int[] newData = new int[newCapacity];
+        System.arraycopy(data, 0, newData, 0, size);
+        data = newData;
+        capacity = newCapacity;
+      }
+
+      data[size++] = obj;
+    }
+
+    public void addAll(ObjectList other) {
+      if (other == null) {
+        return;
+      }
+      for (int i = 0; i < other.size; i++) {
+        add(other.data[i]);
+      }
+    }
+
+    public boolean remove(int value) {
+      for (int i = 0; i < size; i++) {
+        if (data[i] == value) {
+          if (i < size - 1) {
+            System.arraycopy(data, i+1, data, i, size - i - 1);
+          }
+          --size;
+          if ((size < capacity / 4) &&
+              (capacity > MIN_CAPACITY)) {
+            int newCapacity = capacity / 4;
+            if (newCapacity < MIN_CAPACITY) {
+              newCapacity = MIN_CAPACITY;
+            }
+            int[] newData = new int[newCapacity];
+            System.arraycopy(data, 0, newData, 0, size);
+            data = newData;
+            capacity = newCapacity;
+          }
+          return true;
+        }
+      }
+      return false;
+    }
+
+    public void setName(String name) {
+      if (DEBUG) {
+        this.name = name;
+      }
+    }
+
+    public void delete(GL2 gl) {
+      // Just in case we start throwing exceptions during deletion,
+      // make sure we make progress rather than going into an infinite
+      // loop
+      while (size > 0) {
+        int obj = data[size - 1];
+        --size;
+        if (DEBUG) {
+          System.err.println("Deleting server-side OpenGL object " + obj +
+                             ((name != null) ? (" (" + name + ")") : ""));
+        }
+        deleter.delete(gl, obj);
+      }
+    }
+
+    public void clear() {
+      size = 0;
+      capacity = MIN_CAPACITY;
+      data = new int[capacity];
+    }
+  }
+
+  private ObjectList[] lists = new ObjectList[NUM_OBJECT_TYPES];
+  private int refCount;
+  private boolean dirty;
+
+  private void add(ObjectList list, int n, IntBuffer ids) {
+    int pos = ids.position();
+    for (int i = 0; i < n; i++) {
+      list.add(ids.get(pos + i));
+    }
+  }
+
+  private void add(ObjectList list, int n, int[] ids, int ids_offset) {
+    for (int i = 0; i < n; i++) {
+      list.add(ids[i + ids_offset]);
+    }
+  }
+
+  private void add(ObjectList list, int start, int n) {
+    for (int i = 0; i < n; i++) {
+      list.add(start + i);
+    }
+  }
+
+  private void remove(ObjectList list, int n, IntBuffer ids) {
+    int pos = ids.position();
+    for (int i = 0; i < n; i++) {
+      list.remove(ids.get(pos + i));
+    }
+  }
+
+  private void remove(ObjectList list, int n, int[] ids, int ids_offset) {
+    for (int i = 0; i < n; i++) {
+      list.remove(ids[i + ids_offset]);
+    }
+  }
+
+  private void remove(ObjectList list, int start, int n) {
+    for (int i = 0; i < n; i++) {
+      list.remove(start + i);
+    }
+  }
+
+  private ObjectList getList(int which) {
+    ObjectList list = lists[which];
+    if (list == null) {
+      Deleter deleter = null;
+      String name = null;
+      // Figure out which deleter we need
+      switch (which) {
+        case BUFFERS:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteBuffers(1, new int[] { obj }, 0);
+              }
+            };
+          name = "buffer";
+          break;
+        case BUFFERS_ARB:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteBuffersARB(1, new int[] { obj }, 0);
+              }
+            };
+          name = "ARB buffer";
+          break;
+        case FENCES_APPLE:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteFencesAPPLE(1, new int[] { obj }, 0);
+              }
+            };
+          name = "APPLE fence";
+          break;
+        case FENCES_NV:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteFencesNV(1, new int[] { obj }, 0);
+              }
+            };
+          name = "NV fence";
+          break;
+        case FRAGMENT_SHADERS_ATI:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteFragmentShaderATI(obj);
+              }
+            };
+          name = "ATI fragment shader";
+          break;
+        case FRAMEBUFFERS_EXT:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteFramebuffersEXT(1, new int[] { obj }, 0);
+              }
+            };
+          name = "EXT framebuffer";
+          break;
+        case LISTS:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteLists(obj, 1);
+              }
+            };
+          name = "display list";
+          break;
+        case OCCLUSION_QUERIES_NV:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteOcclusionQueriesNV(1, new int[] { obj }, 0);
+              }
+            };
+          name = "NV occlusion query";
+          break;
+        case PROGRAM_AND_SHADER_OBJECTS_ARB:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteObjectARB(obj);
+              }
+            };
+          name = "ARB program or shader object";
+          break;
+        case PROGRAM_OBJECTS:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteProgram(obj);
+              }
+            };
+          name = "program object";
+          break;
+        case PROGRAMS_ARB:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteProgramsARB(1, new int[] { obj }, 0);
+              }
+            };
+          name = "ARB program object";
+          break;
+        case PROGRAMS_NV:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteProgramsNV(1, new int[] { obj }, 0);
+              }
+            };
+          name = "NV program";
+          break;
+        case QUERIES:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteQueries(1, new int[] { obj }, 0);
+              }
+            };
+          name = "query";
+          break;
+        case QUERIES_ARB:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteQueriesARB(1, new int[] { obj }, 0);
+              }
+            };
+          name = "ARB query";
+          break;
+        case RENDERBUFFERS_EXT:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteRenderbuffersEXT(1, new int[] { obj }, 0);
+              }
+            };
+          name = "EXT renderbuffer";
+          break;
+        case SHADER_OBJECTS:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteShader(obj);
+              }
+            };
+          name = "shader object";
+          break;
+        case TEXTURES:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteTextures(1, new int[] { obj }, 0);
+              }
+            };
+          name = "texture";
+          break;
+        case VERTEX_ARRAYS_APPLE:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteVertexArraysAPPLE(1, new int[] { obj }, 0);
+              }
+            };
+          name = "APPLE vertex array";
+          break;
+        case VERTEX_SHADERS_EXT:
+          deleter = new Deleter() {
+              public void delete(GL2 gl, int obj) {
+                gl.glDeleteVertexShaderEXT(obj);
+              }
+            };
+          name = "EXT vertex shader";
+          break;
+        default:
+          throw new InternalError("Unexpected OpenGL object type " + which);
+      }
+
+      list = new ObjectList(deleter);
+      list.setName(name);
+      lists[which] = list;
+    }
+    return list;
+  }
+
+  private void delete(GL2 gl) {
+    for (int i = 0; i < lists.length; i++) {
+      ObjectList list = lists[i];
+      if (list != null) {
+        list.delete(gl);
+        lists[i] = null;
+      }
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLContext.java
new file mode 100644
index 000000000..bf4023c1c
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLContext.java
@@ -0,0 +1,342 @@
+/*
+ * 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 com.jogamp.opengl.impl.macosx.cgl;
+
+import java.nio.*;
+import java.util.*;
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.gluegen.runtime.ProcAddressTable;
+
+public abstract class MacOSXCGLContext extends GLContextImpl
+{	
+  protected long nsContext;  // NSOpenGLContext
+  protected long cglContext; // CGLContextObj
+  private CGLExt cglExt;
+  // Table that holds the addresses of the native C-language entry points for
+  // CGL extension functions.
+  private CGLExtProcAddressTable cglExtProcAddressTable;
+  
+  public MacOSXCGLContext(GLDrawableImpl drawable, GLDrawableImpl drawableRead,
+                          GLContext shareWith) {
+    super(drawable, drawableRead, shareWith);
+  }
+
+  public MacOSXCGLContext(GLDrawableImpl drawable,
+                          GLContext shareWith) {
+    this(drawable, null, shareWith);
+  }
+  
+  public Object getPlatformGLExtensions() {
+    return getCGLExt();
+  }
+
+  public CGLExt getCGLExt() {
+    if (cglExt == null) {
+      cglExt = new CGLExtImpl(this);
+    }
+    return cglExt;
+  }
+
+  public final ProcAddressTable getPlatformExtProcAddressTable() {
+    return getCGLExtProcAddressTable();
+  }
+
+  public final CGLExtProcAddressTable getCGLExtProcAddressTable() {
+    return cglExtProcAddressTable;
+  }
+
+  protected String mapToRealGLFunctionName(String glFunctionName)
+  {
+    return glFunctionName;
+  }
+	
+  protected String mapToRealGLExtensionName(String glExtensionName)
+  {
+    return glExtensionName;
+  }
+	
+  protected abstract boolean create();
+
+  /**
+   * Creates and initializes an appropriate OpenGl nsContext. Should only be
+   * called by {@link makeCurrentImpl()}.
+   */
+  protected boolean create(boolean pbuffer, boolean floatingPoint) {
+    MacOSXCGLContext other = (MacOSXCGLContext) GLContextShareSet.getShareContext(this);
+    long share = 0;
+    if (other != null) {
+      share = other.getNSContext();
+      if (share == 0) {
+        throw new GLException("GLContextShareSet returned an invalid OpenGL context");
+      }
+    }
+    MacOSXCGLGraphicsConfiguration config = (MacOSXCGLGraphicsConfiguration) drawable.getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+    GLCapabilities capabilitiesRequested = (GLCapabilities)config.getRequestedCapabilities();
+    GLProfile glProfile = capabilitiesRequested.getGLProfile();
+    if(glProfile.isGL3()) {
+        throw new GLException("GL3 profile currently not supported on MacOSX, due to the lack of a OpenGL 3.1 implementation");
+    }
+    // HACK .. bring in OnScreen/PBuffer selection to the DrawableFactory !!
+    GLCapabilities capabilities = (GLCapabilities) capabilitiesRequested.clone();
+    capabilities.setPBuffer(pbuffer);
+    capabilities.setPbufferFloatingPointBuffers(floatingPoint);
+
+    long pixelFormat = MacOSXCGLGraphicsConfiguration.GLCapabilities2NSPixelFormat(capabilities);
+    if (pixelFormat == 0) {
+      throw new GLException("Unable to allocate pixel format with requested GLCapabilities");
+    }
+    config.setChosenPixelFormat(pixelFormat);
+    try {
+      int[] viewNotReady = new int[1];
+      // Try to allocate a context with this
+      nsContext = CGL.createContext(share,
+                                    drawable.getNativeWindow().getSurfaceHandle(),
+                                    pixelFormat,
+                                    viewNotReady, 0);
+      if (nsContext == 0) {
+        if (viewNotReady[0] == 1) {
+          if (DEBUG) {
+            System.err.println("!!! View not ready for " + getClass().getName());
+          }
+          // View not ready at the window system level -- this is OK
+          return false;
+        }
+        throw new GLException("Error creating NSOpenGLContext with requested pixel format");
+      }
+
+      if (!pbuffer && !capabilities.isBackgroundOpaque()) {
+          // Set the context opacity
+          CGL.setContextOpacity(nsContext, 0);
+      }
+
+      GLCapabilities caps = MacOSXCGLGraphicsConfiguration.NSPixelFormat2GLCapabilities(glProfile, pixelFormat);
+      config.setChosenCapabilities(caps);
+    } finally {
+      CGL.deletePixelFormat(pixelFormat);
+    }
+    if (!CGL.makeCurrentContext(nsContext)) {
+      throw new GLException("Error making nsContext current");
+    }
+    setGLFunctionAvailability(true);
+    GLContextShareSet.contextCreated(this);
+    return true;
+  }    
+	
+  protected int makeCurrentImpl() throws GLException {
+    if (0 == cglContext && drawable.getNativeWindow().getSurfaceHandle() == 0) {
+        if (DEBUG) {
+          System.err.println("drawable not properly initialized");
+        }
+        return CONTEXT_NOT_CURRENT;
+    }
+    boolean created = false;
+    if ( 0 == cglContext && 0 == nsContext) {
+      if (!create()) {
+        return CONTEXT_NOT_CURRENT;
+      }
+      if (DEBUG) {
+        System.err.println("!!! Created OpenGL context " + toHexString(nsContext) + " for " + getClass().getName());
+      }
+      created = true;
+    }
+            
+    if ( 0 != cglContext ) {
+        if (CGL.kCGLNoError != CGL.CGLSetCurrentContext(cglContext)) {
+          throw new GLException("Error making cglContext current");
+        }
+    } else {
+        if (!CGL.makeCurrentContext(nsContext)) {
+          throw new GLException("Error making nsContext current");
+        }
+    }
+            
+    if (created) {
+      setGLFunctionAvailability(false);
+      return CONTEXT_CURRENT_NEW;
+    }
+    return CONTEXT_CURRENT;
+  }
+	
+  protected void releaseImpl() throws GLException {
+    if ( 0 != cglContext ) {
+        CGL.CGLReleaseContext(cglContext);
+    } else {
+        if (!CGL.clearCurrentContext(nsContext)) {
+          throw new GLException("Error freeing OpenGL nsContext");
+        }
+    }
+  }
+	
+  protected void destroyImpl() throws GLException {
+    boolean hadContext = isCreated();
+    if ( 0 != cglContext ) {
+      if (CGL.kCGLNoError != CGL.CGLDestroyContext(cglContext)) {
+        throw new GLException("Unable to delete OpenGL cglContext");
+      }
+      if (DEBUG) {
+        System.err.println("!!! Destroyed OpenGL cglContext " + cglContext);
+      }
+      cglContext = 0;
+      GLContextShareSet.contextDestroyed(this);
+    } else if ( 0 != nsContext ) {
+      if (!CGL.deleteContext(nsContext)) {
+        throw new GLException("Unable to delete OpenGL nsContext");
+      }
+      if (DEBUG) {
+        System.err.println("!!! Destroyed OpenGL nsContext " + nsContext);
+      }
+      nsContext = 0;
+    }
+    if(hadContext) {
+      GLContextShareSet.contextDestroyed(this);
+    }
+  }
+
+  public boolean isCreated() {
+    return 0 != cglContext || 0 != nsContext ;
+  }
+	
+  public void copy(GLContext source, int mask) throws GLException {
+    long dst = getCGLContext();
+    long src = 0;
+    if( 0 != dst ) {
+        src = ((MacOSXCGLContext) source).getCGLContext();
+        if (src == 0) {
+          throw new GLException("Source OpenGL cglContext has not been created ; Destination has a cglContext.");
+        }
+        CGL.CGLCopyContext(src, dst, mask);
+    } else {
+        dst = getNSContext();
+        src = ((MacOSXCGLContext) source).getNSContext();
+        if (src == 0) {
+          throw new GLException("Source OpenGL nsContext has not been created");
+        }
+        if (dst == 0) {
+          throw new GLException("Destination OpenGL nsContext has not been created");
+        }
+        CGL.copyContext(dst, src, mask);
+    }
+  }
+
+  protected void updateGLProcAddressTable() {
+    if (DEBUG) {
+      System.err.println("!!! Initializing CGL extension address table");
+    }
+    if (cglExtProcAddressTable == null) {
+      // FIXME: cache ProcAddressTables by capability bits so we can
+      // share them among contexts with the same capabilities
+      cglExtProcAddressTable = new CGLExtProcAddressTable();
+    }          
+    resetProcAddressTable(getCGLExtProcAddressTable());
+    super.updateGLProcAddressTable();
+  }
+	
+  public String getPlatformExtensionsString()
+  {
+    return "";
+  }
+	
+  protected void setSwapIntervalImpl(int interval) {
+    if ( 0 != cglContext ) {
+        int[] lval = new int[] { (int) interval } ;
+        CGL.CGLSetParameter(cglContext, CGL.kCGLCPSwapInterval, lval, 0);
+    } else if ( 0 != nsContext ) {
+        CGL.setSwapInterval(nsContext, interval);
+    } else {
+      throw new GLException("OpenGL context not current");
+    }
+    currentSwapInterval = interval ;
+  }
+
+  public ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3) {
+    // FIXME: apparently the Apple extension doesn't require a custom memory allocator
+    throw new GLException("Not yet implemented");
+  }
+
+  public boolean isFunctionAvailable(String glFunctionName)
+  {
+    return super.isFunctionAvailable(glFunctionName);
+  }
+  
+  public boolean isExtensionAvailable(String glExtensionName) {
+    if (glExtensionName.equals("GL_ARB_pbuffer") ||
+        glExtensionName.equals("GL_ARB_pixel_format")) {
+      return true;
+    }
+    return super.isExtensionAvailable(glExtensionName);
+  }
+  
+  public int getOffscreenContextPixelDataType() {
+    throw new GLException("Should not call this");
+  }
+
+  public int getOffscreenContextReadBuffer() {
+    throw new GLException("Should not call this");
+  }
+
+  public boolean offscreenImageNeedsVerticalFlip() {
+    throw new GLException("Should not call this");
+  }
+
+  public void bindPbufferToTexture() {
+    throw new GLException("Should not call this");
+  }
+    
+  public void releasePbufferFromTexture() {
+    throw new GLException("Should not call this");
+  }
+    
+  // Support for "mode switching" as described in MacOSXCGLDrawable
+  public abstract void setOpenGLMode(int mode);
+  public abstract int  getOpenGLMode();
+
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  //
+	
+  public long getCGLContext() {
+    return cglContext;
+  }
+  public long getNSContext() {
+    return nsContext;
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLDrawable.java
new file mode 100644
index 000000000..2b91eb5d3
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLDrawable.java
@@ -0,0 +1,109 @@
+/*
+ * 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 com.jogamp.opengl.impl.macosx.cgl;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.gluegen.runtime.DynamicLookupHelper;
+
+public abstract class MacOSXCGLDrawable extends GLDrawableImpl {
+  // The Java2D/OpenGL pipeline on OS X uses low-level CGLContextObjs
+  // to represent the contexts for e.g. the Java2D back buffer. When
+  // the Java2D/JOGL bridge is active, this means that if we want to
+  // be able to share textures and display lists with the Java2D
+  // contexts, we need to use the CGL APIs rather than the NSOpenGL
+  // APIs on the JOGL side. For example, if we create a pbuffer using
+  // the NSOpenGL APIs and want to share textures and display lists
+  // between it and the Java2D back buffer, there is no way to do so,
+  // because the Java2D context is actually a CGLContextObj and the
+  // NSOpenGLContext's initWithFormat:shareContext: only accepts an
+  // NSOpenGLContext as its second argument. Of course there is no way
+  // to wrap an NSOpenGLContext around an arbitrary CGLContextObj.
+  //
+  // The situation we care most about is allowing a GLPbuffer to share
+  // textures, etc. with a GLJPanel when the Java2D/JOGL bridge is
+  // active; several of the demos rely on this functionality. We aim
+  // to get there by allowing a GLPBuffer to switch its implementation
+  // between using an NSOpenGLPixelBuffer and a CGLPBufferObj. In
+  // order to track whether this has been done we need to have the
+  // notion of a "mode" of both the MacOSXCGLDrawable and the
+  // MacOSXGLContext. Initially the mode is "unspecified", meaning it
+  // leans toward the default (NSOpenGL). If sharing is requested
+  // between either a GLJPanel and a GLPbuffer or a GLCanvas and a
+  // GLPbuffer, the GLPbuffer will be switched into the appropriate
+  // mode: CGL mode for a GLJPanel and NSOpenGL mode for a GLCanvas.
+  // To avoid thrashing we support exactly one such switch during the
+  // lifetime of a given GLPbuffer. This is not a fully general
+  // solution (for example, you can't share textures among a
+  // GLPbuffer, a GLJPanel and a GLCanvas simultaneously) but should
+  // be enough to get things off the ground.
+  public static final int NSOPENGL_MODE = 1;
+  public static final int CGL_MODE      = 2;
+
+  public MacOSXCGLDrawable(GLDrawableFactory factory, NativeWindow comp, boolean realized) {
+    super(factory, comp, realized);
+ }
+
+  protected void setRealizedImpl() {
+    if(realized) {
+        if( NativeWindow.LOCK_SURFACE_NOT_READY == lockSurface() ) {
+            throw new GLException("Couldn't lock surface");
+        }
+        try {
+            // don't remove this block .. locking the surface is essential to update surface data
+        } finally {
+            unlockSurface();
+        }
+    }
+  }
+
+  public DynamicLookupHelper getDynamicLookupHelper() {
+    return (MacOSXCGLDrawableFactory) getFactoryImpl() ;
+  }
+
+  protected static String getThreadName() {
+    return Thread.currentThread().getName();
+  }
+
+  // Support for "mode switching" as per above
+  public abstract void setOpenGLMode(int mode);
+  public abstract int  getOpenGLMode();
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLDrawableFactory.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLDrawableFactory.java
new file mode 100644
index 000000000..c08599964
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLDrawableFactory.java
@@ -0,0 +1,161 @@
+/*
+ * 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 com.jogamp.opengl.impl.macosx.cgl;
+
+import java.lang.reflect.InvocationTargetException;
+import java.nio.*;
+import java.util.*;
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.*;
+import com.jogamp.gluegen.runtime.DynamicLookupHelper;
+
+public class MacOSXCGLDrawableFactory extends GLDrawableFactoryImpl implements DynamicLookupHelper {
+  public MacOSXCGLDrawableFactory() {
+    super();
+
+    // Register our GraphicsConfigurationFactory implementations
+    // The act of constructing them causes them to be registered
+    new MacOSXCGLGraphicsConfigurationFactory();
+
+    try {
+      NWReflection.createInstance("com.jogamp.opengl.impl.macosx.cgl.awt.MacOSXAWTCGLGraphicsConfigurationFactory",
+                                  new Object[] {});
+    } catch (Throwable t) { }
+  }
+
+  public GLDrawableImpl createOnscreenDrawable(NativeWindow target) {
+    if (target == null) {
+      throw new IllegalArgumentException("Null target");
+    }
+    return new MacOSXOnscreenCGLDrawable(this, target);
+  }
+
+  protected GLDrawableImpl createOffscreenDrawable(NativeWindow target) {
+    return new MacOSXOffscreenCGLDrawable(this, target);
+  }
+
+  public boolean canCreateGLPbuffer() {
+    return true;
+  }
+
+  protected GLDrawableImpl createGLPbufferDrawableImpl(final NativeWindow target) {
+    /** 
+     * FIXME: Think about this ..
+     * should not be necessary ? ..
+    final List returnList = new ArrayList();
+    final GLDrawableFactory factory = this;
+    Runnable r = new Runnable() {
+        public void run() {
+          returnList.add(new MacOSXPbufferCGLDrawable(factory, target));
+        }
+      };
+    maybeDoSingleThreadedWorkaround(r);
+    return (GLDrawableImpl) returnList.get(0);
+    */
+    return new MacOSXPbufferCGLDrawable(this, target);
+  }
+
+  protected NativeWindow createOffscreenWindow(GLCapabilities capabilities, GLCapabilitiesChooser chooser, int width, int height) {
+    AbstractGraphicsScreen screen = DefaultGraphicsScreen.createDefault();
+    NullWindow nw = new NullWindow(MacOSXCGLGraphicsConfigurationFactory.chooseGraphicsConfigurationStatic(capabilities, chooser, screen, true));
+    nw.setSize(width, height);
+    return nw;
+  }
+
+  public GLContext createExternalGLContext() {
+    return MacOSXExternalCGLContext.create(this, null);
+  }
+
+  public boolean canCreateExternalGLDrawable() {
+    return false;
+  }
+
+  public GLDrawable createExternalGLDrawable() {
+    // FIXME
+    throw new GLException("Not yet implemented");
+  }
+
+  public void loadGLULibrary() {
+    // Nothing to do; already loaded by native code; not much point in
+    // making it lazier on this platform
+  }
+
+  public long dynamicLookupFunction(String glFuncName) {
+    return CGL.getProcAddress(glFuncName);
+  }
+
+  public boolean canCreateContextOnJava2DSurface() {
+    return false;
+  }
+
+  public GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
+    throws GLException {
+    throw new GLException("not supported in non AWT enviroment");
+  }
+  
+  //------------------------------------------------------
+  // Gamma-related functionality
+  //
+
+  private static final int GAMMA_RAMP_LENGTH = 256;
+
+  /** Returns the length of the computed gamma ramp for this OS and
+      hardware. Returns 0 if gamma changes are not supported. */
+  protected int getGammaRampLength() {
+    return GAMMA_RAMP_LENGTH;
+  }
+
+  protected boolean setGammaRamp(float[] ramp) {
+    return CGL.setGammaRamp(ramp.length,
+                            ramp, 0,
+                            ramp, 0,
+                            ramp, 0);
+  }
+
+  protected Buffer getGammaRamp() {
+    return null;
+  }
+
+  protected void resetGammaRamp(Buffer originalGammaRamp) {
+    CGL.resetGammaRamp();
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLGraphicsConfiguration.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLGraphicsConfiguration.java
new file mode 100644
index 000000000..889d1c333
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLGraphicsConfiguration.java
@@ -0,0 +1,231 @@
+/*
+ * 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 com.jogamp.opengl.impl.macosx.cgl;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+
+public class MacOSXCGLGraphicsConfiguration extends DefaultGraphicsConfiguration implements Cloneable {
+    long pixelformat;
+
+    public MacOSXCGLGraphicsConfiguration(AbstractGraphicsScreen screen, GLCapabilities capsChosen, GLCapabilities capsRequested,
+                                          long pixelformat) {
+        super(screen, capsChosen, capsRequested);
+        this.pixelformat=pixelformat;
+    }
+
+    public Object clone() {
+        return super.clone();
+    }
+
+    protected void setChosenPixelFormat(long pixelformat) {
+        this.pixelformat=pixelformat;
+    }
+
+    protected void setChosenCapabilities(GLCapabilities caps) {
+        super.setChosenCapabilities(caps);
+    }
+
+    protected static final int[] cglInternalAttributeToken = new int[] {
+        CGL.kCGLPFAColorFloat,
+        CGL.NSOpenGLPFAPixelBuffer,
+        CGL.NSOpenGLPFADoubleBuffer,
+        CGL.NSOpenGLPFAStereo,
+        CGL.NSOpenGLPFAColorSize,
+        CGL.NSOpenGLPFAAlphaSize,
+        CGL.NSOpenGLPFADepthSize,
+        CGL.NSOpenGLPFAAccumSize,
+        CGL.NSOpenGLPFAStencilSize,
+        CGL.NSOpenGLPFASampleBuffers,
+        CGL.NSOpenGLPFASamples };
+
+    protected static int[] GLCapabilities2AttribList(GLCapabilities caps) {
+        int[] ivalues = new int[cglInternalAttributeToken.length];
+
+        for (int idx = 0; idx < cglInternalAttributeToken.length; idx++) {
+          int attr = cglInternalAttributeToken[idx];
+          switch (attr) {
+              case CGL.kCGLPFAColorFloat:
+                ivalues[idx] = caps.getPbufferFloatingPointBuffers() ? 1 : 0;
+                break;
+
+              case CGL.NSOpenGLPFAPixelBuffer:
+                ivalues[idx] = caps.isPBuffer() ? 1 : 0;
+                break;
+
+              case CGL.NSOpenGLPFADoubleBuffer:
+                ivalues[idx] = (caps.getDoubleBuffered() ? 1 : 0);
+                break;
+
+              case CGL.NSOpenGLPFAStereo:
+                ivalues[idx] = (caps.getStereo() ? 1 : 0);
+                break;
+
+              case CGL.NSOpenGLPFAColorSize:
+                ivalues[idx] = (caps.getRedBits() + caps.getGreenBits() + caps.getBlueBits());
+                break;
+
+              case CGL.NSOpenGLPFAAlphaSize:
+                ivalues[idx] = caps.getAlphaBits();
+                break;
+
+              case CGL.NSOpenGLPFADepthSize:
+                ivalues[idx] = caps.getDepthBits();
+                break;
+
+              case CGL.NSOpenGLPFAAccumSize:
+                ivalues[idx] = (caps.getAccumRedBits() + caps.getAccumGreenBits() + caps.getAccumBlueBits() + caps.getAccumAlphaBits());
+                break;
+
+              case CGL.NSOpenGLPFAStencilSize:
+                ivalues[idx] = caps.getStencilBits();
+                break;
+
+              case CGL.NSOpenGLPFASampleBuffers:
+                ivalues[idx] = caps.getSampleBuffers() ? 1 : 0;
+                break;
+
+              case CGL.NSOpenGLPFASamples:
+                ivalues[idx] = caps.getSampleBuffers() ? ivalues[idx] = caps.getNumSamples() : 0;
+                break;
+
+              default:
+                break;
+          }
+        }
+        return ivalues;
+    }
+
+    protected static long GLCapabilities2NSPixelFormat(GLCapabilities caps) {
+        int[] ivalues = GLCapabilities2AttribList(caps);
+        return CGL.createPixelFormat(cglInternalAttributeToken, 0, cglInternalAttributeToken.length, ivalues, 0);
+    }
+
+    protected static GLCapabilities NSPixelFormat2GLCapabilities(GLProfile glp, long pixelFormat) {
+        return PixelFormat2GLCapabilities(glp, pixelFormat, true);
+    }
+
+    protected static GLCapabilities CGLPixelFormat2GLCapabilities(GLProfile glp, long pixelFormat) {
+        return PixelFormat2GLCapabilities(glp, pixelFormat, false);
+    }
+
+    private static GLCapabilities PixelFormat2GLCapabilities(GLProfile glp, long pixelFormat, boolean nsUsage) {
+        int[] ivalues = new int[cglInternalAttributeToken.length];
+
+        // On this platform the pixel format is associated with the
+        // context and not the drawable. However it's a reasonable
+        // approximation to just store the chosen pixel format up in the
+        // NativeWindow's AbstractGraphicsConfiguration, 
+        // since the public API doesn't provide for a different GLCapabilities per context.
+        // Note: These restrictions of the platform's API might be considered as a bug anyways.
+
+        // Figure out what attributes we really got
+        GLCapabilities caps = new GLCapabilities(glp);
+        if(nsUsage) {
+            CGL.queryPixelFormat(pixelFormat, cglInternalAttributeToken, 0, cglInternalAttributeToken.length, ivalues, 0);
+        } else {
+            CGL.CGLQueryPixelFormat(pixelFormat, cglInternalAttributeToken, 0, cglInternalAttributeToken.length, ivalues, 0);
+        }
+        for (int i = 0; i < cglInternalAttributeToken.length; i++) {
+          int attr = cglInternalAttributeToken[i];
+          switch (attr) {
+              case CGL.kCGLPFAColorFloat:
+                caps.setPbufferFloatingPointBuffers(ivalues[i] != 0);
+                break;
+
+              case CGL.NSOpenGLPFAPixelBuffer:
+                caps.setPBuffer(ivalues[i] != 0);
+                break;
+
+              case CGL.NSOpenGLPFADoubleBuffer:
+                caps.setDoubleBuffered(ivalues[i] != 0);
+                break;
+
+              case CGL.NSOpenGLPFAStereo:
+                caps.setStereo(ivalues[i] != 0);
+                break;
+
+              case CGL.NSOpenGLPFAColorSize:
+                {
+                  int bitSize = ivalues[i];
+                  if (bitSize == 32)
+                    bitSize = 24;
+                  bitSize /= 3;
+                  caps.setRedBits(bitSize);
+                  caps.setGreenBits(bitSize);
+                  caps.setBlueBits(bitSize);
+                }
+                break;
+
+              case CGL.NSOpenGLPFAAlphaSize:
+                caps.setAlphaBits(ivalues[i]);
+                break;
+
+              case CGL.NSOpenGLPFADepthSize:
+                caps.setDepthBits(ivalues[i]);
+                break;
+
+              case CGL.NSOpenGLPFAAccumSize:
+                {
+                  int bitSize = ivalues[i] / 4;
+                  caps.setAccumRedBits(bitSize);
+                  caps.setAccumGreenBits(bitSize);
+                  caps.setAccumBlueBits(bitSize);
+                  caps.setAccumAlphaBits(bitSize);
+                }
+                break;
+
+              case CGL.NSOpenGLPFAStencilSize:
+                caps.setStencilBits(ivalues[i]);
+                break;
+
+              case CGL.NSOpenGLPFASampleBuffers:
+                caps.setSampleBuffers(ivalues[i] != 0);
+                break;
+
+              case CGL.NSOpenGLPFASamples:
+                caps.setNumSamples(ivalues[i]);
+                break;
+
+              default:
+                break;
+          }
+        }
+
+        return caps;
+      }
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLGraphicsConfigurationFactory.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLGraphicsConfigurationFactory.java
new file mode 100644
index 000000000..ab53e49e9
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXCGLGraphicsConfigurationFactory.java
@@ -0,0 +1,84 @@
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.macosx.cgl;
+
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.macosx.*;
+import com.sun.nativewindow.impl.*;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+
+/** Subclass of GraphicsConfigurationFactory used when non-AWT tookits
+    are used on OSX platforms. Toolkits will likely need to delegate
+    to this one to change the accepted and returned types of the
+    GraphicsDevice and GraphicsConfiguration abstractions. */
+
+public class MacOSXCGLGraphicsConfigurationFactory extends GraphicsConfigurationFactory {
+    protected static final boolean DEBUG = com.jogamp.opengl.impl.Debug.debug("GraphicsConfiguration");
+
+    public MacOSXCGLGraphicsConfigurationFactory() {
+        GraphicsConfigurationFactory.registerFactory(javax.media.nativewindow.macosx.MacOSXGraphicsDevice.class, this);
+    }
+
+    public AbstractGraphicsConfiguration chooseGraphicsConfiguration(Capabilities capabilities,
+                                                                     CapabilitiesChooser chooser,
+                                                                     AbstractGraphicsScreen absScreen) {
+        return chooseGraphicsConfigurationStatic(capabilities, chooser, absScreen, false);
+    }
+
+    protected static MacOSXCGLGraphicsConfiguration chooseGraphicsConfigurationStatic(Capabilities capabilities,
+                                                                                   CapabilitiesChooser chooser,
+                                                                                   AbstractGraphicsScreen absScreen, boolean usePBuffer) {
+        if (absScreen == null) {
+            throw new IllegalArgumentException("AbstractGraphicsScreen is null");
+        }
+
+        if (capabilities != null &&
+            !(capabilities instanceof GLCapabilities)) {
+            throw new IllegalArgumentException("This NativeWindowFactory accepts only GLCapabilities objects");
+        }
+
+        if (chooser != null &&
+            !(chooser instanceof GLCapabilitiesChooser)) {
+            throw new IllegalArgumentException("This NativeWindowFactory accepts only GLCapabilitiesChooser objects");
+        }
+
+        if (capabilities == null) {
+            capabilities = new GLCapabilities(null);
+        }
+
+        return new MacOSXCGLGraphicsConfiguration(absScreen, (GLCapabilities)capabilities, (GLCapabilities)capabilities, 0);
+    }
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXExternalCGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXExternalCGLContext.java
new file mode 100644
index 000000000..239eedd43
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXExternalCGLContext.java
@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2005 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 com.jogamp.opengl.impl.macosx.cgl;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+
+import javax.media.nativewindow.*;
+import com.sun.nativewindow.impl.NullWindow;
+
+public class MacOSXExternalCGLContext extends MacOSXCGLContext {
+  private boolean firstMakeCurrent = true;
+  private boolean created = true;
+  private GLContext lastContext;
+
+  private MacOSXExternalCGLContext(Drawable drawable, long cglContext, long nsContext) {
+    super(drawable, null);
+    drawable.setExternalCGLContext(this);
+    this.cglContext = cglContext;
+    this.nsContext = nsContext;
+    GLContextShareSet.contextCreated(this);
+    setGLFunctionAvailability(false);
+    getGLStateTracker().setEnabled(false); // external context usage can't track state in Java
+  }
+
+  protected static MacOSXExternalCGLContext create(GLDrawableFactory factory, GLProfile glp) {
+    ((GLDrawableFactoryImpl)factory).lockToolkit();
+    try {
+        long pixelFormat = 0;
+        long currentDrawable = 0;
+        long cglContext = 0;
+        long nsContext = CGL.getCurrentContext(); // Check: MacOSX 10.3 ..
+        if( 0 != nsContext ) {
+            currentDrawable = CGL.getNSView(nsContext);
+            long ctx = CGL.getCGLContext(nsContext);
+            if (ctx == 0) {
+              throw new GLException("Error: NULL cglContext of nsContext 0x" +Long.toHexString(nsContext));
+            }
+            pixelFormat = CGL.CGLGetPixelFormat(ctx);
+            if(DEBUG) {
+                System.err.println("MacOSXExternalCGLContext Create nsContext 0x"+Long.toHexString(nsContext)+
+                                   ", cglContext 0x"+Long.toHexString(ctx)+
+                                   ", pixelFormat 0x"+Long.toHexString(pixelFormat));
+            }
+        } else {
+            cglContext = CGL.CGLGetCurrentContext();
+            if (cglContext == 0) {
+              throw new GLException("Error: current cglContext null, no nsContext");
+            }
+            pixelFormat = CGL.CGLGetPixelFormat(cglContext);
+            if(DEBUG) {
+                System.err.println("MacOSXExternalCGLContext Create cglContext 0x"+Long.toHexString(cglContext)+
+                                   ", pixelFormat 0x"+Long.toHexString(pixelFormat));
+            }
+        }
+
+        if (0 == pixelFormat) {
+          throw new GLException("Error: current pixelformat of current cglContext 0x"+Long.toHexString(cglContext)+" is null");
+        }
+        GLCapabilities caps = MacOSXCGLGraphicsConfiguration.CGLPixelFormat2GLCapabilities(glp, pixelFormat);
+        if(DEBUG) {
+            System.err.println("MacOSXExternalCGLContext Create "+caps);
+        }
+
+        AbstractGraphicsScreen aScreen = DefaultGraphicsScreen.createDefault();
+        MacOSXCGLGraphicsConfiguration cfg = new MacOSXCGLGraphicsConfiguration(aScreen, caps, caps, pixelFormat);
+
+        NullWindow nw = new NullWindow(cfg);
+        nw.setSurfaceHandle(currentDrawable); 
+        return new MacOSXExternalCGLContext(new Drawable(factory, nw), cglContext, nsContext);
+    } finally {
+        ((GLDrawableFactoryImpl)factory).unlockToolkit();
+    }
+  }
+
+  protected boolean create() {
+    return true;
+  }
+
+  public int makeCurrent() throws GLException {
+    // Save last context if necessary to allow external GLContexts to
+    // talk to other GLContexts created by this library
+    GLContext cur = getCurrent();
+    if (cur != null && cur != this) {
+      lastContext = cur;
+      setCurrent(null);
+    }
+    return super.makeCurrent();
+  }  
+
+  protected void swapBuffers() {
+    DefaultGraphicsConfiguration config = (DefaultGraphicsConfiguration) drawable.getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+    GLCapabilities caps = (GLCapabilities)config.getChosenCapabilities();
+    if(caps.isOnscreen()) {
+        if (CGL.kCGLNoError != CGL.CGLFlushDrawable(cglContext)) {
+          throw new GLException("Error swapping buffers");
+        }
+    }
+  }
+
+  public void release() throws GLException {
+    super.release();
+    setCurrent(lastContext);
+    lastContext = null;
+  }
+
+  protected int makeCurrentImpl() throws GLException {
+    if (firstMakeCurrent) {
+      firstMakeCurrent = false;
+      return CONTEXT_CURRENT_NEW;
+    }
+    return CONTEXT_CURRENT;
+  }
+
+  protected void releaseImpl() throws GLException {
+  }
+
+  protected void destroyImpl() throws GLException {
+    created = false;
+    GLContextShareSet.contextDestroyed(this);
+  }
+
+  public boolean isCreated() {
+    return created;
+  }
+
+  public void setOpenGLMode(int mode) {
+    if (mode != MacOSXCGLDrawable.CGL_MODE)
+      throw new GLException("OpenGL mode switching not supported for external GLContexts");
+  }
+    
+  public int  getOpenGLMode() {
+    return MacOSXCGLDrawable.CGL_MODE;
+  }
+
+  // Need to provide the display connection to extension querying APIs
+  static class Drawable extends MacOSXCGLDrawable {
+    MacOSXExternalCGLContext extCtx;
+
+    Drawable(GLDrawableFactory factory, NativeWindow comp) {
+      super(factory, comp, true);
+    }
+
+    void setExternalCGLContext(MacOSXExternalCGLContext externalContext) {
+      extCtx = externalContext;
+    }
+
+    public GLContext createContext(GLContext shareWith) {
+      throw new GLException("Should not call this");
+    }
+
+    public int getWidth() {
+      throw new GLException("Should not call this");
+    }
+
+    public int getHeight() {
+      throw new GLException("Should not call this");
+    }
+
+    public void setSize(int width, int height) {
+      throw new GLException("Should not call this");
+    }
+
+    protected void swapBuffersImpl() {
+      if (extCtx != null) {
+        extCtx.swapBuffers();
+      }
+    }
+  
+    public void setOpenGLMode(int mode) {
+        if (mode != CGL_MODE)
+          throw new GLException("OpenGL mode switching not supported for external GLContext's drawables");
+    }
+
+    public int  getOpenGLMode() {
+        return CGL_MODE;
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXOffscreenCGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXOffscreenCGLContext.java
new file mode 100644
index 000000000..8b8bb46fa
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXOffscreenCGLContext.java
@@ -0,0 +1,64 @@
+/*
+ * 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 com.jogamp.opengl.impl.macosx.cgl;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+
+public class MacOSXOffscreenCGLContext extends MacOSXPbufferCGLContext
+{  
+  public MacOSXOffscreenCGLContext(MacOSXPbufferCGLDrawable drawable,
+                                  GLContext shareWith) {
+    super(drawable, shareWith);
+  }
+	
+  public int getOffscreenContextPixelDataType() {
+    GL gl = getGL();
+    return gl.isGL2()?GL2.GL_UNSIGNED_INT_8_8_8_8_REV:GL.GL_UNSIGNED_SHORT_5_5_5_1;
+  }
+
+  public int getOffscreenContextReadBuffer() {
+    return GL.GL_FRONT;
+  }
+
+  public boolean offscreenImageNeedsVerticalFlip() {
+    return true;
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXOffscreenCGLDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXOffscreenCGLDrawable.java
new file mode 100644
index 000000000..adaa48f34
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXOffscreenCGLDrawable.java
@@ -0,0 +1,56 @@
+/*
+ * 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 com.jogamp.opengl.impl.macosx.cgl;
+
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import com.jogamp.opengl.impl.*;
+
+public class MacOSXOffscreenCGLDrawable extends MacOSXPbufferCGLDrawable {
+
+  public MacOSXOffscreenCGLDrawable(GLDrawableFactory factory,
+                                    NativeWindow target) {
+    super(factory, target);
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    return new MacOSXOffscreenCGLContext(this, shareWith);
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXOnscreenCGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXOnscreenCGLContext.java
new file mode 100644
index 000000000..4c64864fa
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXOnscreenCGLContext.java
@@ -0,0 +1,130 @@
+/*
+ * 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 com.jogamp.opengl.impl.macosx.cgl;
+
+import java.util.*;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+
+public class MacOSXOnscreenCGLContext extends MacOSXCGLContext {
+  protected MacOSXOnscreenCGLDrawable drawable;
+
+  public MacOSXOnscreenCGLContext(MacOSXOnscreenCGLDrawable drawable,
+                                 GLContext shareWith) {
+    super(drawable, shareWith);
+    this.drawable = drawable;
+  }
+
+  protected int makeCurrentImpl() throws GLException {
+    int lockRes = drawable.lockSurface();
+    boolean exceptionOccurred = false;
+    try {
+      if (lockRes == NativeWindow.LOCK_SURFACE_NOT_READY) {
+        return CONTEXT_NOT_CURRENT;
+      }
+      int ret = super.makeCurrentImpl();
+      if ((ret == CONTEXT_CURRENT) ||
+          (ret == CONTEXT_CURRENT_NEW)) {
+        // Assume the canvas might have been resized or moved and tell the OpenGL
+        // context to update itself. This used to be done only upon receiving a
+        // reshape event but that doesn't appear to be sufficient. An experiment
+        // was also done to add a HierarchyBoundsListener to the GLCanvas and
+        // do this updating only upon reshape of this component or reshape or movement
+        // of an ancestor, but this also wasn't sufficient and left garbage on the
+        // screen in some situations.
+        CGL.updateContext(nsContext);
+      } else {
+        if (!isOptimizable()) {
+          // This can happen if the window currently is zero-sized, for example.
+          // Make sure we don't leave the surface locked in this case.
+          drawable.unlockSurface();
+          lockRes = NativeWindow.LOCK_SURFACE_NOT_READY;
+        }
+      }
+      return ret;
+    } catch (RuntimeException e) {
+      exceptionOccurred = true;
+      throw e;
+    } finally {
+      if (exceptionOccurred ||
+          (isOptimizable() && lockRes != NativeWindow.LOCK_SURFACE_NOT_READY)) {
+        drawable.unlockSurface();
+      }
+    }
+  }
+    
+  protected void releaseImpl() throws GLException {
+    try {
+      super.releaseImpl();
+    } finally {
+      if (!isOptimizable() && drawable.isSurfaceLocked()) {
+        drawable.unlockSurface();
+      }
+    }
+  }
+
+  protected void swapBuffers() {
+    if (!CGL.flushBuffer(nsContext)) {
+      throw new GLException("Error swapping buffers");
+    }
+  }
+
+  protected void update() throws GLException {
+    if (nsContext == 0) {
+      throw new GLException("Context not created");
+    }
+    CGL.updateContext(nsContext);
+  }
+
+  protected boolean create() {
+    return create(false, false);
+  }
+
+  public void setOpenGLMode(int mode) {
+    if (mode != MacOSXCGLDrawable.NSOPENGL_MODE)
+      throw new GLException("OpenGL mode switching not supported for on-screen GLContexts");
+  }
+    
+  public int  getOpenGLMode() {
+    return MacOSXCGLDrawable.NSOPENGL_MODE;
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXOnscreenCGLDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXOnscreenCGLDrawable.java
new file mode 100644
index 000000000..6ee023867
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXOnscreenCGLDrawable.java
@@ -0,0 +1,100 @@
+/*
+ * 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 com.jogamp.opengl.impl.macosx.cgl;
+
+import java.lang.ref.WeakReference;
+import java.security.*;
+import java.util.*;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+
+public class MacOSXOnscreenCGLDrawable extends MacOSXCGLDrawable {
+  private List/*<WeakReference<GLContext>>*/ createdContexts =
+    new ArrayList();
+
+  protected MacOSXOnscreenCGLDrawable(GLDrawableFactory factory, NativeWindow component) {
+    super(factory, component, false);
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    MacOSXOnscreenCGLContext context =
+      new MacOSXOnscreenCGLContext(this, shareWith);
+    // NOTE: we need to keep track of the created contexts in order to
+    // implement swapBuffers() because of how Mac OS X implements its
+    // OpenGL window interface
+    synchronized (this) {
+      List newContexts = new ArrayList();
+      newContexts.addAll(createdContexts);
+      newContexts.add(new WeakReference(context));
+      createdContexts = newContexts;
+    }
+    return context;
+  }
+
+  public int getWidth() {
+    return component.getWidth();
+  }
+
+  public int getHeight() {
+    return component.getHeight();
+  }
+
+  protected void swapBuffersImpl() {
+    for (Iterator iter = createdContexts.iterator(); iter.hasNext(); ) {
+      WeakReference ref = (WeakReference) iter.next();
+      MacOSXOnscreenCGLContext ctx = (MacOSXOnscreenCGLContext) ref.get();
+      // FIXME: clear out unreachable contexts
+      if (ctx != null) {
+        ctx.swapBuffers();
+      }
+    }
+  }
+  
+  public void setOpenGLMode(int mode) {
+    if (mode != NSOPENGL_MODE)
+      throw new GLException("OpenGL mode switching not supported for on-screen GLDrawables");
+  }
+
+  public int  getOpenGLMode() {
+    return NSOPENGL_MODE;
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXPbufferCGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXPbufferCGLContext.java
new file mode 100644
index 000000000..131375338
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXPbufferCGLContext.java
@@ -0,0 +1,359 @@
+package com.jogamp.opengl.impl.macosx.cgl;
+
+import java.security.*;
+import java.util.*;
+
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import com.jogamp.opengl.impl.*;
+
+public class MacOSXPbufferCGLContext extends MacOSXCGLContext {
+  protected MacOSXPbufferCGLDrawable drawable;
+
+  // State for render-to-texture and render-to-texture-rectangle support
+  private int textureTarget; // e.g. GL_TEXTURE_2D, GL_TEXTURE_RECTANGLE_NV
+  private int texture;       // actual texture object
+
+  private static boolean isTigerOrLater;
+
+  static {
+    String osVersion = Debug.getProperty("os.version", false, AccessController.getContext());
+    StringTokenizer tok = new StringTokenizer(osVersion, ". ");
+    int major = Integer.parseInt(tok.nextToken());
+    int minor = Integer.parseInt(tok.nextToken());
+    isTigerOrLater = ((major > 10) || (minor > 3));
+  }
+
+  public MacOSXPbufferCGLContext(MacOSXPbufferCGLDrawable drawable,
+                                GLContext shareWith) {
+    super(drawable, shareWith);
+    this.drawable = drawable;
+    initOpenGLImpl();
+  }
+
+  public void bindPbufferToTexture() {
+    GL gl = getGL();
+    gl.glBindTexture(textureTarget, 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(nsContext, drawable.getPbuffer(), GL.GL_FRONT);
+  }
+
+  public void releasePbufferFromTexture() {
+  }
+
+  protected int makeCurrentImpl() throws GLException {
+    if (drawable.getPbuffer() == 0) {
+      if (DEBUG) {
+        System.err.println("Pbuffer not instantiated yet for " + this);
+      }
+      // pbuffer not instantiated yet
+      return CONTEXT_NOT_CURRENT;
+    }
+
+    if (getOpenGLMode() != drawable.getOpenGLMode()) {
+      setOpenGLMode(drawable.getOpenGLMode());
+    }
+
+    boolean created = false;
+    if (nsContext == 0) {
+      if (!create()) {
+        return CONTEXT_NOT_CURRENT;
+      }
+      if (DEBUG) {
+        System.err.println("!!! Created OpenGL context " + toHexString(nsContext) + " for " + getClass().getName());
+      }
+      created = true;
+    }
+    
+    if (!impl.makeCurrent(nsContext)) {
+      throw new GLException("Error making nsContext current");
+    }
+            
+    if (created) {
+      setGLFunctionAvailability(false);
+
+      // Initialize render-to-texture support if requested
+      DefaultGraphicsConfiguration config = (DefaultGraphicsConfiguration) drawable.getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+      GLCapabilities capabilities = (GLCapabilities)config.getChosenCapabilities();
+      GL gl = getGL();
+      boolean rect = gl.isGL2() && capabilities.getPbufferRenderToTextureRectangle();
+      if (rect) {
+        if (!gl.isExtensionAvailable("GL_EXT_texture_rectangle")) {
+          System.err.println("MacOSXPbufferCGLContext: WARNING: GL_EXT_texture_rectangle extension not " +
+                             "supported; skipping requested render_to_texture_rectangle support for pbuffer");
+          rect = false;
+        }
+      }
+      textureTarget = (rect ? GL2.GL_TEXTURE_RECTANGLE : 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 CONTEXT_CURRENT_NEW;
+    }
+    return CONTEXT_CURRENT;
+  }
+
+  protected void releaseImpl() throws GLException {
+    if (!impl.release(nsContext)) {
+      throw new GLException("Error releasing OpenGL nsContext");
+    }
+  }
+
+  protected void destroyImpl() throws GLException {
+    if (nsContext != 0) {
+      if (!impl.destroy(nsContext)) {
+        throw new GLException("Unable to delete OpenGL context");
+      }
+      if (DEBUG) {
+        System.err.println("!!! Destroyed OpenGL context " + nsContext);
+      }
+      nsContext = 0;
+      GLContextShareSet.contextDestroyed(this);
+    }
+  }
+
+  protected void setSwapIntervalImpl(int interval) {
+    if (nsContext == 0) {
+      throw new GLException("OpenGL context not current");
+    }
+    impl.setSwapInterval(nsContext, interval);
+    currentSwapInterval = impl.getSwapInterval() ;
+  }
+
+  public int getFloatingPointMode() {
+    return GLPbuffer.APPLE_FLOAT;
+  }
+
+  protected boolean create() {
+    DefaultGraphicsConfiguration config = (DefaultGraphicsConfiguration) drawable.getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+    GLCapabilities capabilities = (GLCapabilities)config.getChosenCapabilities();
+    if (capabilities.getPbufferFloatingPointBuffers() &&
+	!isTigerOrLater) {
+      throw new GLException("Floating-point pbuffers supported only on OS X 10.4 or later");
+    }
+    // Change our OpenGL mode to match that of any share context before we create ourselves
+    MacOSXCGLContext other = (MacOSXCGLContext) GLContextShareSet.getShareContext(this);
+    if (other != null) {
+      setOpenGLMode(other.getOpenGLMode());
+    }
+    // Will throw exception upon error
+    nsContext = impl.create();
+
+    if (!impl.makeCurrent(nsContext)) {
+      throw new GLException("Error making nsContext current");
+    }
+    setGLFunctionAvailability(true);
+            
+    return true;
+  }
+
+  //---------------------------------------------------------------------------
+  // OpenGL "mode switching" functionality
+  //
+  private boolean haveSetOpenGLMode = false;
+  // FIXME: should consider switching the default mode based on
+  // whether the Java2D/JOGL bridge is active -- need to ask ourselves
+  // whether it's more likely that we will share with a GLCanvas or a
+  // GLJPanel when the bridge is turned on
+  private int     openGLMode = MacOSXCGLDrawable.NSOPENGL_MODE;
+  // Implementation object (either NSOpenGL-based or CGL-based)
+  protected Impl impl;
+
+  public void setOpenGLMode(int mode) {
+    if (mode == openGLMode) {
+      return;
+    }
+    if (haveSetOpenGLMode) {
+      throw new GLException("Can't switch between using NSOpenGLPixelBuffer and CGLPBufferObj more than once");
+    }
+    destroyImpl();
+    drawable.setOpenGLMode(mode);
+    openGLMode = mode;
+    haveSetOpenGLMode = true;
+    if (DEBUG) {
+      System.err.println("Switching PBuffer context mode to " +
+                         ((mode == MacOSXCGLDrawable.NSOPENGL_MODE) ? "NSOPENGL_MODE" : "CGL_MODE"));
+    }
+    initOpenGLImpl();
+  }
+
+  public int  getOpenGLMode() {
+    return openGLMode;
+  }
+
+  private void initOpenGLImpl() {
+    switch (openGLMode) {
+      case MacOSXCGLDrawable.NSOPENGL_MODE:
+        impl = new NSOpenGLImpl();
+        break;
+      case MacOSXCGLDrawable.CGL_MODE:
+        impl = new CGLImpl();
+        break;
+      default:
+        throw new InternalError("Illegal implementation mode " + openGLMode);
+    }
+  }
+
+  // Abstract interface for implementation of this context (either
+  // NSOpenGL-based or CGL-based)
+  interface Impl {
+    public long    create();
+    public boolean destroy(long ctx);
+    public boolean makeCurrent(long ctx);
+    public boolean release(long ctx);
+    public void    setSwapInterval(long ctx, int interval);
+    public int     getSwapInterval();
+  }
+
+  // NSOpenGLContext-based implementation
+  class NSOpenGLImpl implements Impl {
+    public long create() {
+      DefaultGraphicsConfiguration config = (DefaultGraphicsConfiguration) drawable.getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+      GLCapabilities capabilities = (GLCapabilities)config.getChosenCapabilities();
+      if (capabilities.getPbufferFloatingPointBuffers() &&
+          !isTigerOrLater) {
+        throw new GLException("Floating-point pbuffers supported only on OS X 10.4 or later");
+      }
+      if (!MacOSXPbufferCGLContext.this.create(true, capabilities.getPbufferFloatingPointBuffers())) {
+        throw new GLException("Error creating context for pbuffer");
+      }
+      // Must now associate the pbuffer with our newly-created context
+      CGL.setContextPBuffer(nsContext, drawable.getPbuffer());
+      return nsContext;
+    }
+
+    public boolean destroy(long ctx) {
+      return CGL.deleteContext(ctx);
+    }
+
+    public boolean makeCurrent(long ctx) {
+      return CGL.makeCurrentContext(ctx);
+    }
+
+    public boolean release(long ctx) {
+      return CGL.clearCurrentContext(ctx);
+    }
+
+    private int currentSwapInterval = 0 ;
+
+    public void setSwapInterval(long ctx, int interval) {
+      CGL.setSwapInterval(ctx, interval);      
+      currentSwapInterval = interval ;
+    }
+    public int getSwapInterval() {
+        return currentSwapInterval;
+    }
+  }
+
+  class CGLImpl implements Impl {
+    public long create() {
+      // Find and configure share context
+      MacOSXCGLContext other = (MacOSXCGLContext) GLContextShareSet.getShareContext(MacOSXPbufferCGLContext.this);
+      long share = 0;
+      if (other != null) {
+        // Reconfigure pbuffer-based GLContexts
+        if (other instanceof MacOSXPbufferCGLContext) {
+          MacOSXPbufferCGLContext ctx = (MacOSXPbufferCGLContext) other;
+          ctx.setOpenGLMode(MacOSXCGLDrawable.CGL_MODE);
+        } else {
+          if (other.getOpenGLMode() != MacOSXCGLDrawable.CGL_MODE) {
+            throw new GLException("Can't share between NSOpenGLContexts and CGLContextObjs");
+          }
+        }
+        share = other.getNSContext();
+        // Note we don't check for a 0 return value, since switching
+        // the context's mode causes it to be destroyed and not
+        // re-initialized until the next makeCurrent
+      }
+
+      // Set up pixel format attributes
+      // FIXME: shall go into MacOSXCGLGraphicsConfiguration
+      int[] attrs = new int[256];
+      int i = 0;
+      attrs[i++] = CGL.kCGLPFAPBuffer;
+      DefaultGraphicsConfiguration config = (DefaultGraphicsConfiguration) drawable.getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+      GLCapabilities capabilities = (GLCapabilities)config.getChosenCapabilities();
+      if (capabilities.getPbufferFloatingPointBuffers())
+        attrs[i++] = CGL.kCGLPFAColorFloat;
+      if (capabilities.getDoubleBuffered())
+        attrs[i++] = CGL.kCGLPFADoubleBuffer;
+      if (capabilities.getStereo())
+        attrs[i++] = CGL.kCGLPFAStereo;
+      attrs[i++] = CGL.kCGLPFAColorSize;
+      attrs[i++] = (capabilities.getRedBits() +
+                    capabilities.getGreenBits() +
+                    capabilities.getBlueBits());
+      attrs[i++] = CGL.kCGLPFAAlphaSize;
+      attrs[i++] = capabilities.getAlphaBits();
+      attrs[i++] = CGL.kCGLPFADepthSize;
+      attrs[i++] = capabilities.getDepthBits();
+      // FIXME: should validate stencil size as is done in MacOSXWindowSystemInterface.m
+      attrs[i++] = CGL.kCGLPFAStencilSize;
+      attrs[i++] = capabilities.getStencilBits();
+      attrs[i++] = CGL.kCGLPFAAccumSize;
+      attrs[i++] = (capabilities.getAccumRedBits() +
+                    capabilities.getAccumGreenBits() +
+                    capabilities.getAccumBlueBits() +
+                    capabilities.getAccumAlphaBits());
+      if (capabilities.getSampleBuffers()) {
+        attrs[i++] = CGL.kCGLPFASampleBuffers;
+        attrs[i++] = 1;
+        attrs[i++] = CGL.kCGLPFASamples;
+        attrs[i++] = capabilities.getNumSamples();
+      }
+
+      // Use attribute array to select pixel format
+      long[] fmt = new long[1];
+      long[] numScreens = new long[1];
+      int res = CGL.CGLChoosePixelFormat(attrs, 0, fmt, 0, numScreens, 0);
+      if (res != CGL.kCGLNoError) {
+        throw new GLException("Error code " + res + " while choosing pixel format");
+      }
+      
+      // Create new context
+      long[] ctx = new long[1];
+      if (DEBUG) {
+        System.err.println("Share context for CGL-based pbuffer context is " + toHexString(share));
+      }
+      res = CGL.CGLCreateContext(fmt[0], share, ctx, 0);
+      CGL.CGLDestroyPixelFormat(fmt[0]);
+      if (res != CGL.kCGLNoError) {
+        throw new GLException("Error code " + res + " while creating context");
+      }
+      // Attach newly-created context to the pbuffer
+      res = CGL.CGLSetPBuffer(ctx[0], drawable.getPbuffer(), 0, 0, 0);
+      if (res != CGL.kCGLNoError) {
+        throw new GLException("Error code " + res + " while attaching context to pbuffer");
+      }
+      return ctx[0];
+    }
+    
+    public boolean destroy(long ctx) {
+      return (CGL.CGLDestroyContext(ctx) == CGL.kCGLNoError);
+    }
+
+    public boolean makeCurrent(long ctx) {
+      return CGL.CGLSetCurrentContext(ctx) == CGL.kCGLNoError;
+    }
+
+    public boolean release(long ctx) {
+      return (CGL.CGLSetCurrentContext(0) == CGL.kCGLNoError);
+    }
+
+    public void setSwapInterval(long ctx, int interval) {
+      // For now not supported (not really relevant for off-screen contexts anyway)
+    }
+    public int getSwapInterval() {
+        return 0;
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXPbufferCGLDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXPbufferCGLDrawable.java
new file mode 100644
index 000000000..eb6de929d
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/MacOSXPbufferCGLDrawable.java
@@ -0,0 +1,250 @@
+/*
+ * 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 com.jogamp.opengl.impl.macosx.cgl;
+
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import com.jogamp.opengl.impl.*;
+
+public class MacOSXPbufferCGLDrawable extends MacOSXCGLDrawable {
+  private static final boolean DEBUG = Debug.debug("MacOSXPbufferCGLDrawable");
+  
+  // State for render-to-texture and render-to-texture-rectangle support
+  private int textureTarget; // e.g. GL_TEXTURE_2D, GL_TEXTURE_RECTANGLE_NV
+  private int texture;       // actual texture object
+
+  // NSOpenGLPbuffer (for normal mode)
+  // CGLPbufferObj (for CGL_MODE situation, i.e., when Java2D/JOGL bridge is active)
+  // Note that we can not store this in the NativeWindow because the
+  // semantic is that contains an NSView
+  protected long pBuffer;
+
+  public MacOSXPbufferCGLDrawable(GLDrawableFactory factory, NativeWindow target) {
+    super(factory, target, true);
+
+    if (DEBUG) {
+        System.out.println("Pbuffer config: " + getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration());
+    }
+
+    initOpenGLImpl();
+    createPbuffer();
+
+    if (DEBUG) {
+        System.err.println("Created pbuffer " + this);
+    }
+  }
+
+  protected void setRealizedImpl() {
+    if(realized) {
+        createPbuffer();
+    } else {
+        destroy();
+    }
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    return new MacOSXPbufferCGLContext(this, shareWith);
+  }
+
+  public void destroy() {
+    if (this.pBuffer != 0) {
+      NativeWindow nw = getNativeWindow();
+      impl.destroy(pBuffer);
+      this.pBuffer = 0;
+      ((SurfaceChangeable)nw).setSurfaceHandle(0);
+      if (DEBUG) {
+        System.err.println("Destroyed pbuffer: " + pBuffer);
+      }
+    }
+  }
+
+  public long getPbuffer() {
+    return pBuffer;
+  }
+  
+  protected void swapBuffersImpl() {
+    if(DEBUG) {
+        System.err.println("unhandled swapBuffersImpl() called for: "+this);
+    }
+  }
+
+  private void createPbuffer() {
+    NativeWindow nw = getNativeWindow();
+    DefaultGraphicsConfiguration config = (DefaultGraphicsConfiguration) nw.getGraphicsConfiguration().getNativeGraphicsConfiguration();
+    GLCapabilities capabilities = (GLCapabilities)config.getChosenCapabilities();
+    GLProfile glProfile = capabilities.getGLProfile();
+    int renderTarget;
+    if (glProfile.isGL2() && capabilities.getPbufferRenderToTextureRectangle()) {
+      renderTarget = GL2.GL_TEXTURE_RECTANGLE;
+    } else {
+      int w = getNextPowerOf2(getWidth());
+      int h = getNextPowerOf2(getHeight());
+      ((SurfaceChangeable)nw).setSize(w, h);
+      renderTarget = GL.GL_TEXTURE_2D;
+    }
+
+    int internalFormat = GL.GL_RGBA;
+    if (capabilities.getPbufferFloatingPointBuffers()) {
+      // FIXME: want to check availability of GL_APPLE_float_pixels
+      // extension, but need valid OpenGL context in order to do so --
+      // in worst case would need to create dummy window / GLCanvas
+      // (undesirable) -- could maybe also do this with pbuffers
+      /*
+        if (!gl.isExtensionAvailable("GL_APPLE_float_pixels")) {
+        throw new GLException("Floating-point support (GL_APPLE_float_pixels) not available");
+        }
+      */
+      if(glProfile.isGL2()) {
+        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)");
+        }
+      } else {
+        internalFormat = GL.GL_RGBA;
+      }
+    }
+            
+    pBuffer = impl.create(renderTarget, internalFormat, getWidth(), getHeight());
+    if (pBuffer == 0) {
+      throw new GLException("pbuffer creation error: CGL.createPBuffer() failed");
+    }
+
+    ((SurfaceChangeable)nw).setSurfaceHandle(pBuffer);
+
+  }
+
+  private int getNextPowerOf2(int number) {
+    if (((number-1) & number) == 0) {
+      //ex: 8 -> 0b1000; 8-1=7 -> 0b0111; 0b1000&0b0111 == 0
+      return number;
+    }
+    int power = 0;
+    while (number > 0) {
+      number = number>>1;
+      power++;
+    }
+    return (1<<power);
+  }
+
+  //---------------------------------------------------------------------------
+  // OpenGL "mode switching" functionality
+  //
+  private boolean haveSetOpenGLMode = false;
+  // FIXME: should consider switching the default mode based on
+  // whether the Java2D/JOGL bridge is active -- need to ask ourselves
+  // whether it's more likely that we will share with a GLCanvas or a
+  // GLJPanel when the bridge is turned on
+  private int     openGLMode = NSOPENGL_MODE;
+  // Implementation object (either NSOpenGL-based or CGL-based)
+  protected Impl impl;
+
+  public void setOpenGLMode(int mode) {
+    if (mode == openGLMode) {
+      return;
+    }
+    if (haveSetOpenGLMode) {
+      throw new GLException("Can't switch between using NSOpenGLPixelBuffer and CGLPBufferObj more than once");
+    }
+    destroy();
+    openGLMode = mode;
+    haveSetOpenGLMode = true;
+    if (DEBUG) {
+      System.err.println("Switching PBuffer drawable mode to " +
+                         ((mode == MacOSXCGLDrawable.NSOPENGL_MODE) ? "NSOPENGL_MODE" : "CGL_MODE"));
+    }
+    initOpenGLImpl();
+    createPbuffer();
+  }
+
+  public int getOpenGLMode() {
+    return openGLMode;
+  }
+
+  private void initOpenGLImpl() {
+    switch (openGLMode) {
+      case NSOPENGL_MODE:
+        impl = new NSOpenGLImpl();
+        break;
+      case CGL_MODE:
+        impl = new CGLImpl();
+        break;
+      default:
+        throw new InternalError("Illegal implementation mode " + openGLMode);
+    }
+  }
+
+  // Abstract interface for implementation of this drawable (either
+  // NSOpenGL-based or CGL-based)
+  interface Impl {
+    public long create(int renderTarget, int internalFormat, int width, int height);
+    public void destroy(long pbuffer);
+  }
+
+  // NSOpenGLPixelBuffer implementation
+  class NSOpenGLImpl implements Impl {
+    public long create(int renderTarget, int internalFormat, int width, int height) {
+      return CGL.createPBuffer(renderTarget, internalFormat, width, height);
+    }
+
+    public void destroy(long pbuffer) {
+      CGL.destroyPBuffer(pbuffer);
+    }
+  }
+
+  // CGL implementation
+  class CGLImpl implements Impl {
+    public long create(int renderTarget, int internalFormat, int width, int height) {
+      long[] pbuffer = new long[1];
+      int res = CGL.CGLCreatePBuffer(width, height, renderTarget, internalFormat, 0, pbuffer, 0);
+      if (res != CGL.kCGLNoError) {
+        throw new GLException("Error creating CGL-based pbuffer: error code " + res);
+      }
+      return pbuffer[0];
+    }
+
+    public void destroy(long pbuffer) {
+      int res = CGL.CGLDestroyPBuffer(pbuffer);
+      if (res != CGL.kCGLNoError) {
+        throw new GLException("Error destroying CGL-based pbuffer: error code " + res);
+      }
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/awt/MacOSXAWTCGLDrawableFactory.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/awt/MacOSXAWTCGLDrawableFactory.java
new file mode 100644
index 000000000..cc973c56a
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/awt/MacOSXAWTCGLDrawableFactory.java
@@ -0,0 +1,64 @@
+/*
+ * 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 com.jogamp.opengl.impl.macosx.cgl.awt;
+
+import java.lang.reflect.InvocationTargetException;
+import java.nio.*;
+import java.util.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.opengl.impl.awt.*;
+import com.jogamp.opengl.impl.macosx.cgl.*;
+
+public class MacOSXAWTCGLDrawableFactory extends MacOSXCGLDrawableFactory {
+
+  public MacOSXAWTCGLDrawableFactory() {
+    super();
+  }
+
+  public boolean canCreateContextOnJava2DSurface() {
+    return true;
+  }
+
+  public GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
+    throws GLException {
+    return new MacOSXJava2DCGLContext(shareWith);
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/awt/MacOSXAWTCGLGraphicsConfigurationFactory.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/awt/MacOSXAWTCGLGraphicsConfigurationFactory.java
new file mode 100644
index 000000000..97d5e8d68
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/awt/MacOSXAWTCGLGraphicsConfigurationFactory.java
@@ -0,0 +1,111 @@
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.macosx.cgl.awt;
+
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsDevice;
+import java.awt.GraphicsEnvironment;
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.macosx.*;
+import javax.media.nativewindow.awt.*;
+import javax.media.opengl.*;
+import javax.media.opengl.awt.*;
+
+import com.jogamp.opengl.impl.*;
+import com.jogamp.opengl.impl.macosx.cgl.*;
+import com.sun.nativewindow.impl.jawt.*;
+import com.sun.nativewindow.impl.jawt.macosx.*;
+
+public class MacOSXAWTCGLGraphicsConfigurationFactory extends GraphicsConfigurationFactory {
+    protected static final boolean DEBUG = com.jogamp.opengl.impl.Debug.debug("GraphicsConfiguration");
+
+    public MacOSXAWTCGLGraphicsConfigurationFactory() {
+        GraphicsConfigurationFactory.registerFactory(javax.media.nativewindow.awt.AWTGraphicsDevice.class, this);
+    }
+
+    public AbstractGraphicsConfiguration chooseGraphicsConfiguration(Capabilities capabilities,
+                                                                     CapabilitiesChooser chooser,
+                                                                     AbstractGraphicsScreen absScreen) {
+        GraphicsDevice device = null;
+        if (absScreen != null &&
+            !(absScreen instanceof AWTGraphicsScreen)) {
+            throw new IllegalArgumentException("This GraphicsConfigurationFactory accepts only AWTGraphicsScreen objects");
+        }
+
+        if(null==absScreen) {
+            absScreen = AWTGraphicsScreen.createScreenDevice(-1);
+        }
+        AWTGraphicsScreen awtScreen = (AWTGraphicsScreen) absScreen;
+        device = ((AWTGraphicsDevice)awtScreen.getDevice()).getGraphicsDevice();
+
+        if (capabilities != null &&
+            !(capabilities instanceof GLCapabilities)) {
+            throw new IllegalArgumentException("This GraphicsConfigurationFactory accepts only GLCapabilities objects");
+        }
+
+        if (chooser != null &&
+            !(chooser instanceof GLCapabilitiesChooser)) {
+            throw new IllegalArgumentException("This GraphicsConfigurationFactory accepts only GLCapabilitiesChooser objects");
+        }
+
+        if(DEBUG) {
+            System.err.println("MacOSXAWTCGLGraphicsConfigurationFactory: got "+absScreen);
+        }
+
+        long displayHandle = 0;
+
+        MacOSXGraphicsDevice macDevice = new MacOSXGraphicsDevice();
+        DefaultGraphicsScreen macScreen = new DefaultGraphicsScreen(macDevice, awtScreen.getIndex());
+        if(DEBUG) {
+            System.err.println("MacOSXAWTCGLGraphicsConfigurationFactory: made "+macScreen);
+        }
+
+        GraphicsConfiguration gc = device.getDefaultConfiguration();
+        AWTGraphicsConfiguration.setupCapabilitiesRGBABits(capabilities, gc);
+        if(DEBUG) {
+            System.err.println("AWT Colormodel compatible: "+capabilities);
+        }
+
+        MacOSXCGLGraphicsConfiguration macConfig = (MacOSXCGLGraphicsConfiguration)
+            GraphicsConfigurationFactory.getFactory(macDevice).chooseGraphicsConfiguration(capabilities,
+                                                                                           chooser,
+                                                                                           macScreen);
+
+        if (macConfig == null) {
+            throw new GLException("Unable to choose a GraphicsConfiguration: "+capabilities+",\n\t"+chooser+"\n\t"+macScreen);
+        }
+
+        // FIXME: we have nothing to match .. so choose the default
+        return new AWTGraphicsConfiguration(awtScreen, macConfig.getChosenCapabilities(), macConfig.getRequestedCapabilities(), gc, macConfig);
+    }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/awt/MacOSXJava2DCGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/awt/MacOSXJava2DCGLContext.java
new file mode 100644
index 000000000..9010d4461
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/macosx/cgl/awt/MacOSXJava2DCGLContext.java
@@ -0,0 +1,155 @@
+/*
+ * 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 com.jogamp.opengl.impl.macosx.cgl.awt;
+
+import com.jogamp.opengl.impl.macosx.cgl.*;
+
+import java.awt.Graphics;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.opengl.impl.awt.*;
+import com.jogamp.opengl.impl.macosx.cgl.*;
+
+/** 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
+
+  public MacOSXJava2DCGLContext(GLContext shareWith) {
+    super(null, shareWith);
+  }
+
+  public void setGraphics(Graphics g) {
+    this.graphics = g;
+  }
+
+  protected int makeCurrentImpl() throws GLException {
+    boolean created = false;
+    if (nsContext == 0) {
+      if (!create()) {
+        return CONTEXT_NOT_CURRENT;
+      }
+      if (DEBUG) {
+        System.err.println("!!! Created GL nsContext for " + getClass().getName());
+      }
+      created = true;
+    }
+            
+    if (!Java2D.makeOGLContextCurrentOnSurface(graphics, nsContext)) {
+      throw new GLException("Error making context current");
+    }
+            
+    if (created) {
+      setGLFunctionAvailability(false);
+      return CONTEXT_CURRENT_NEW;
+    }
+    return CONTEXT_CURRENT;
+  }
+
+  protected boolean create() {
+    // Find and configure share context
+    MacOSXCGLContext other = (MacOSXCGLContext) GLContextShareSet.getShareContext(this);
+    long share = 0;
+    if (other != null) {
+      // Reconfigure pbuffer-based GLContexts
+      if (other instanceof MacOSXPbufferCGLContext) {
+        MacOSXPbufferCGLContext ctx = (MacOSXPbufferCGLContext) other;
+        ctx.setOpenGLMode(MacOSXCGLDrawable.CGL_MODE);
+      } else {
+        if (other.getOpenGLMode() != MacOSXCGLDrawable.CGL_MODE) {
+          throw new GLException("Can't share between NSOpenGLContexts and CGLContextObjs");
+        }
+      }
+      share = other.getNSContext();
+      // Note we don't check for a 0 return value, since switching
+      // the context's mode causes it to be destroyed and not
+      // re-initialized until the next makeCurrent
+    }
+
+    if (DEBUG) {
+      System.err.println("!!! Share context is " + toHexString(share) + " for " + getClass().getName());
+    }
+
+    long ctx = Java2D.createOGLContextOnSurface(graphics, share);
+    if (ctx == 0) {
+      return false;
+    }
+    // FIXME: think about GLContext sharing
+    nsContext = 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 {
+    if (nsContext != 0) {
+      Java2D.destroyOGLContext(nsContext);
+      if (DEBUG) {
+        System.err.println("!!! Destroyed OpenGL context " + nsContext);
+      }
+      nsContext = 0;
+      // FIXME
+      // GLContextShareSet.contextDestroyed(this);
+    }
+  }
+
+  public void setOpenGLMode(int mode) {
+    if (mode != MacOSXCGLDrawable.CGL_MODE)
+      throw new GLException("OpenGL mode switching not supported for Java2D GLContexts");
+  }
+
+  public int  getOpenGLMode() {
+    return MacOSXCGLDrawable.CGL_MODE;
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsDummyWGLDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsDummyWGLDrawable.java
new file mode 100644
index 000000000..89a25fe9a
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsDummyWGLDrawable.java
@@ -0,0 +1,101 @@
+/*
+ * 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 com.jogamp.opengl.impl.windows.wgl;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.NullWindow;
+
+public class WindowsDummyWGLDrawable extends WindowsWGLDrawable {
+  private long hwnd, hdc;
+
+  public WindowsDummyWGLDrawable(GLDrawableFactory factory) {
+    super(factory, new NullWindow(WindowsWGLGraphicsConfigurationFactory.createDefaultGraphicsConfiguration(null, true, true)), true);
+    // All entries to CreateDummyWindow must synchronize on one object
+    // to avoid accidentally registering the dummy window class twice
+    synchronized (WindowsDummyWGLDrawable.class) {
+      hwnd = WGL.CreateDummyWindow(0, 0, 1, 1);
+    }
+    hdc = WGL.GetDC(hwnd);
+    NullWindow nw = (NullWindow) getNativeWindow();
+    nw.setSurfaceHandle(hdc);
+    // Choose a (hopefully hardware-accelerated) OpenGL pixel format for this device context
+    GLCapabilities caps = new GLCapabilities(null);
+    caps.setDepthBits(16);
+    PIXELFORMATDESCRIPTOR pfd = WindowsWGLGraphicsConfiguration.GLCapabilities2PFD(caps);
+    int pixelFormat = WGL.ChoosePixelFormat(hdc, pfd);
+    if ((pixelFormat == 0) ||
+        (!WGL.SetPixelFormat(hdc, pixelFormat, pfd))) {
+      destroy();
+    }
+  }
+
+  public void setSize(int width, int height) {
+  }
+
+  public int getWidth() {
+    return 1;
+  }
+
+  public int getHeight() {
+    return 1;
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    if (hdc == 0) {
+      // Construction failed
+      return null;
+    }
+    // FIXME: figure out how to hook back in the Java 2D / JOGL bridge
+    return new WindowsWGLContext(this, shareWith);
+  }
+
+  public void destroy() {
+    if (hdc != 0) {
+      WGL.ReleaseDC(hwnd, hdc);
+      hdc = 0;
+    }
+    if (hwnd != 0) {
+      WGL.ShowWindow(hwnd, WGL.SW_HIDE);
+      WGL.DestroyWindow(hwnd);
+      hwnd = 0;
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsExternalWGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsExternalWGLContext.java
new file mode 100755
index 000000000..25691ab91
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsExternalWGLContext.java
@@ -0,0 +1,146 @@
+/*
+ * 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 com.jogamp.opengl.impl.windows.wgl;
+
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.NullWindow;
+
+public class WindowsExternalWGLContext extends WindowsWGLContext {
+  private boolean firstMakeCurrent = true;
+  private boolean created = true;
+  private GLContext lastContext;
+
+  private WindowsExternalWGLContext(Drawable drawable, long hglrc, WindowsWGLGraphicsConfiguration cfg) {
+    super(drawable, null);
+    this.context = hglrc;
+    if (DEBUG) {
+      System.err.println(getThreadName() + ": !!! Created external OpenGL context " + toHexString(hglrc) + " for " + this);
+    }
+    GLContextShareSet.contextCreated(this);
+    setGLFunctionAvailability(false);
+    cfg.updateCapabilitiesByWGL(this);
+    getGLStateTracker().setEnabled(false); // external context usage can't track state in Java
+  }
+
+  protected static WindowsExternalWGLContext create(GLDrawableFactory factory, GLProfile glp) {
+    long hdc = WGL.wglGetCurrentDC();
+    if (0==hdc) {
+      throw new GLException("Error: attempted to make an external GLDrawable without a drawable current");
+    }
+    long hglrc = WGL.wglGetCurrentContext();
+    if (hglrc == 0) {
+      throw new GLException("Error: attempted to make an external GLContext without a context current");
+    }
+    int pfdID = WGL.GetPixelFormat(hdc);
+    if (pfdID == 0) {
+      throw new GLException("Error: attempted to make an external GLContext without a valid pixelformat");
+    }
+
+    AbstractGraphicsScreen aScreen = DefaultGraphicsScreen.createDefault();
+    WindowsWGLGraphicsConfiguration cfg = WindowsWGLGraphicsConfiguration.create(hdc, pfdID, glp, aScreen, true, true);
+
+    NullWindow nw = new NullWindow(cfg);
+    nw.setSurfaceHandle(hdc);
+
+    return new WindowsExternalWGLContext(new Drawable(factory, nw), hglrc, cfg);
+  }
+
+  public int makeCurrent() throws GLException {
+    // Save last context if necessary to allow external GLContexts to
+    // talk to other GLContexts created by this library
+    GLContext cur = getCurrent();
+    if (cur != null && cur != this) {
+      lastContext = cur;
+      setCurrent(null);
+    }
+    return super.makeCurrent();
+  }  
+
+  public void release() throws GLException {
+    super.release();
+    setCurrent(lastContext);
+    lastContext = null;
+  }
+
+  protected int makeCurrentImpl() throws GLException {
+    if (firstMakeCurrent) {
+      firstMakeCurrent = false;
+      return CONTEXT_CURRENT_NEW;
+    }
+    return CONTEXT_CURRENT;
+  }
+
+  protected void releaseImpl() throws GLException {
+  }
+
+  protected void destroyImpl() throws GLException {
+    created = false;
+    GLContextShareSet.contextDestroyed(this);
+  }
+
+  public boolean isCreated() {
+    return created;
+  }
+
+  // Need to provide the display connection to extension querying APIs
+  static class Drawable extends WindowsWGLDrawable {
+    Drawable(GLDrawableFactory factory, NativeWindow comp) {
+      super(factory, comp, true);
+    }
+
+    public GLContext createContext(GLContext shareWith) {
+      throw new GLException("Should not call this");
+    }
+
+    public int getWidth() {
+      throw new GLException("Should not call this");
+    }
+
+    public int getHeight() {
+      throw new GLException("Should not call this");
+    }
+
+    public void setSize(int width, int height) {
+      throw new GLException("Should not call this");
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsExternalWGLDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsExternalWGLDrawable.java
new file mode 100755
index 000000000..f5b89842d
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsExternalWGLDrawable.java
@@ -0,0 +1,90 @@
+/*
+ * 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 com.jogamp.opengl.impl.windows.wgl;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.NullWindow;
+
+public class WindowsExternalWGLDrawable extends WindowsWGLDrawable {
+
+  private WindowsExternalWGLDrawable(GLDrawableFactory factory, NativeWindow component) {
+    super(factory, component, true);
+  }
+
+  protected static WindowsExternalWGLDrawable create(GLDrawableFactory factory, GLProfile glp) {
+    long hdc = WGL.wglGetCurrentDC();
+    if (0==hdc) {
+      throw new GLException("Error: attempted to make an external GLDrawable without a drawable current");
+    }
+    int pfdID = WGL.GetPixelFormat(hdc);
+    if (pfdID == 0) {
+      throw new GLException("Error: attempted to make an external GLContext without a valid pixelformat");
+    }
+
+    AbstractGraphicsScreen aScreen = DefaultGraphicsScreen.createDefault();
+    WindowsWGLGraphicsConfiguration cfg = WindowsWGLGraphicsConfiguration.create(hdc, pfdID, glp, aScreen, true, true);
+
+    NullWindow nw = new NullWindow(cfg);
+    nw.setSurfaceHandle(hdc);
+
+    cfg.updateGraphicsConfiguration(factory, nw);
+
+    return new WindowsExternalWGLDrawable(factory, nw);
+  }
+
+
+  public GLContext createContext(GLContext shareWith) {
+    return new WindowsWGLContext(this, shareWith);
+  }
+  
+  public void setSize(int newWidth, int newHeight) {
+    throw new GLException("Should not call this");
+  }
+
+  public int getWidth() {
+    throw new GLException("Should not call this");
+  }  
+
+  public int getHeight() {
+    throw new GLException("Should not call this");
+  }  
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsOffscreenWGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsOffscreenWGLContext.java
new file mode 100644
index 000000000..25d93b50e
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsOffscreenWGLContext.java
@@ -0,0 +1,64 @@
+/*
+ * 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 com.jogamp.opengl.impl.windows.wgl;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+
+public class WindowsOffscreenWGLContext extends WindowsWGLContext {
+  public WindowsOffscreenWGLContext(WindowsOffscreenWGLDrawable drawable,
+                                   GLContext shareWith) {
+    super(drawable, shareWith);
+  }
+
+  public int getOffscreenContextPixelDataType() {
+      return GL.GL_UNSIGNED_BYTE;
+  }
+  
+  public int getOffscreenContextReadBuffer() {
+    // On Windows these contexts are always single-buffered
+    return GL.GL_FRONT;
+  }
+
+  public boolean offscreenImageNeedsVerticalFlip() {
+    // We can take care of this in the DIB creation (see below)
+    return false;
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsOffscreenWGLDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsOffscreenWGLDrawable.java
new file mode 100644
index 000000000..88bfb3b1c
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsOffscreenWGLDrawable.java
@@ -0,0 +1,139 @@
+/*
+ * 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 com.jogamp.opengl.impl.windows.wgl;
+
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.NullWindow;
+
+public class WindowsOffscreenWGLDrawable extends WindowsWGLDrawable {
+  private long origbitmap;
+  private long hbitmap;
+
+  public WindowsOffscreenWGLDrawable(GLDrawableFactory factory, NativeWindow target) {
+    super(factory, target, true);
+    create();
+  }
+
+  protected void setRealizedImpl() {
+    if(realized) {
+        create();
+    } else {
+        destroy();
+    }
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    return new WindowsOffscreenWGLContext(this, shareWith);
+  }
+
+  private void create() {
+    NativeWindow nw = getNativeWindow();
+    WindowsWGLGraphicsConfiguration config = (WindowsWGLGraphicsConfiguration)nw.getGraphicsConfiguration().getNativeGraphicsConfiguration();
+    GLCapabilities capabilities = (GLCapabilities)config.getRequestedCapabilities();
+    int width = getWidth();
+    int height = getHeight();
+    BITMAPINFO info = BITMAPINFO.create();
+    BITMAPINFOHEADER header = info.getBmiHeader();
+    int bitsPerPixel = (capabilities.getRedBits() +
+                        capabilities.getGreenBits() +
+                        capabilities.getBlueBits() +
+                        capabilities.getAlphaBits());
+    header.setBiSize(header.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
+    header.setBiHeight(-1 * height);
+    header.setBiPlanes((short) 1);
+    header.setBiBitCount((short) bitsPerPixel);
+    header.setBiXPelsPerMeter(0);
+    header.setBiYPelsPerMeter(0);
+    header.setBiClrUsed(0);
+    header.setBiClrImportant(0);
+    header.setBiCompression(WGL.BI_RGB);
+    header.setBiSizeImage(width * height * bitsPerPixel / 8);
+
+    long hdc = WGL.CreateCompatibleDC(0);
+    if (hdc == 0) {
+      System.out.println("LastError: " + WGL.GetLastError());
+      throw new GLException("Error creating device context for offscreen OpenGL context");
+    }
+    ((SurfaceChangeable)nw).setSurfaceHandle(hdc);
+
+    hbitmap = WGL.CreateDIBSection(hdc, info, WGL.DIB_RGB_COLORS, 0, 0, 0);
+    if (hbitmap == 0) {
+      WGL.DeleteDC(hdc);
+      hdc = 0;
+      throw new GLException("Error creating offscreen bitmap of width " + width +
+                            ", height " + height);
+    }
+    if ((origbitmap = WGL.SelectObject(hdc, hbitmap)) == 0) {
+      WGL.DeleteObject(hbitmap);
+      hbitmap = 0;
+      WGL.DeleteDC(hdc);
+      hdc = 0;
+      throw new GLException("Error selecting bitmap into new device context");
+    }
+        
+    config.updateGraphicsConfiguration(getFactory(), nw);
+  }
+  
+  public void destroy() {
+    NativeWindow nw = getNativeWindow();
+    if (nw.getSurfaceHandle() != 0) {
+      // Must destroy bitmap and device context
+      WGL.SelectObject(nw.getSurfaceHandle(), origbitmap);
+      WGL.DeleteObject(hbitmap);
+      WGL.DeleteDC(nw.getSurfaceHandle());
+      origbitmap = 0;
+      hbitmap = 0;
+      ((SurfaceChangeable)nw).setSurfaceHandle(0);
+    }
+  }
+
+  protected void swapBuffersImpl() {
+    if(DEBUG) {
+        System.err.println("unhandled swapBuffersImpl() called for: "+this);
+    }
+  }
+
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsOnscreenWGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsOnscreenWGLContext.java
new file mode 100644
index 000000000..aeb13110e
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsOnscreenWGLContext.java
@@ -0,0 +1,88 @@
+/*
+ * 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 com.jogamp.opengl.impl.windows.wgl;
+
+import java.util.*;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+
+public class WindowsOnscreenWGLContext extends WindowsWGLContext {
+  protected WindowsOnscreenWGLDrawable drawable;
+
+  public WindowsOnscreenWGLContext(WindowsOnscreenWGLDrawable drawable,
+                                  GLContext shareWith) {
+    super(drawable, shareWith);
+    this.drawable = drawable;
+  }
+  
+  // Note: Usually the surface shall be locked within [makeCurrent .. swap .. release]
+  protected int makeCurrentImpl() throws GLException {
+    int lockRes = drawable.lockSurface();
+    boolean exceptionOccurred = false;
+    try {
+      if (lockRes == NativeWindow.LOCK_SURFACE_NOT_READY) {
+        return CONTEXT_NOT_CURRENT;
+      }
+      int ret = super.makeCurrentImpl();
+      return ret;
+    } catch (RuntimeException e) {
+      exceptionOccurred = true;
+      throw e;
+    } finally {
+      if (exceptionOccurred ||
+          (isOptimizable() && lockRes != NativeWindow.LOCK_SURFACE_NOT_READY) && drawable.isSurfaceLocked()) {
+        drawable.unlockSurface();
+      }
+    }
+  }
+
+  // Note: Usually the surface shall be locked within [makeCurrent .. swap .. release]
+  protected void releaseImpl() throws GLException {
+    try {
+      super.releaseImpl();
+    } finally {
+      if (!isOptimizable() && drawable.isSurfaceLocked()) {
+        drawable.unlockSurface();
+      }
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsOnscreenWGLDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsOnscreenWGLDrawable.java
new file mode 100644
index 000000000..401b8c3c6
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsOnscreenWGLDrawable.java
@@ -0,0 +1,63 @@
+/*
+ * 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 com.jogamp.opengl.impl.windows.wgl;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+
+public class WindowsOnscreenWGLDrawable extends WindowsWGLDrawable {
+  protected WindowsOnscreenWGLDrawable(GLDrawableFactory factory, NativeWindow component) {
+    super(factory, component, false);
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    return new WindowsOnscreenWGLContext(this, shareWith);
+  }
+
+  public int getWidth() {
+    return component.getWidth();
+  }
+
+  public int getHeight() {
+    return component.getHeight();
+  }
+
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsPbufferWGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsPbufferWGLContext.java
new file mode 100644
index 000000000..b0524bcd9
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsPbufferWGLContext.java
@@ -0,0 +1,155 @@
+/*
+ * 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 com.jogamp.opengl.impl.windows.wgl;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+
+public class WindowsPbufferWGLContext extends WindowsWGLContext {
+  private static final boolean DEBUG = Debug.debug("WindowsPbufferWGLContext");
+
+  // State for render-to-texture and render-to-texture-rectangle support
+  private WindowsPbufferWGLDrawable drawable;
+  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
+
+  public WindowsPbufferWGLContext(WindowsPbufferWGLDrawable drawable,
+                                 GLContext shareWith) {
+    super(drawable, shareWith);
+    this.drawable = drawable;
+  }
+
+  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(drawable.getPbuffer(), 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().
+  }
+
+  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(drawable.getPbuffer(), WGLExt.WGL_FRONT_LEFT_ARB)) {
+        throw new GLException("Releasing of pbuffer from texture failed: " + wglGetLastError());
+      }
+    }
+  }
+
+  protected int makeCurrentImpl() throws GLException {
+    int res = super.makeCurrentImpl();
+    if (DEBUG && VERBOSE) {
+      System.err.println("WindowsPbufferWGLContext: super.makeCurrentImpl() = " + res);
+    }
+    if (res == CONTEXT_CURRENT_NEW) {
+      GLCapabilities capabilities = drawable.getChosenGLCapabilities();
+
+      // Initialize render-to-texture support if requested
+      GL gl = getGL();
+      rtt  = capabilities.getPbufferRenderToTexture();
+      rect = gl.isGL2() && 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("GL_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 = GL2.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;
+  }
+
+  public int getFloatingPointMode() {
+    return drawable.getFloatingPointMode();
+  }
+
+  private static String wglGetLastError() {
+    return WindowsWGLDrawableFactory.wglGetLastError();
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsPbufferWGLDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsPbufferWGLDrawable.java
new file mode 100644
index 000000000..c7034e93b
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsPbufferWGLDrawable.java
@@ -0,0 +1,330 @@
+/*
+ * 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 com.jogamp.opengl.impl.windows.wgl;
+
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import com.jogamp.opengl.impl.*;
+
+public class WindowsPbufferWGLDrawable extends WindowsWGLDrawable {
+  private long cachedParentHdc;
+  private WGLExt cachedWGLExt; // cached WGLExt instance from parent GLCanvas,
+                               // needed to destroy pbuffer
+  private long buffer; // pbuffer handle
+
+  private int floatMode;
+
+  public WindowsPbufferWGLDrawable(GLDrawableFactory factory, NativeWindow target,
+                                   WindowsWGLDrawable dummyDrawable,
+                                   WGLExt wglExt) {
+    super(factory, target, true);
+
+    if (DEBUG) {
+        System.out.println("Pbuffer config: " + getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration());
+    }
+
+    createPbuffer(dummyDrawable.getNativeWindow().getSurfaceHandle(), wglExt);
+
+    if (DEBUG) {
+        System.err.println("Created pbuffer " + this);
+    }
+  }
+
+  protected void setRealizedImpl() {
+    if(realized) {
+        throw new GLException("Recreation via setRealized not supported.");
+    } else {
+        destroy();
+    }
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    return new WindowsPbufferWGLContext(this, shareWith);
+  }
+
+  public void destroy() {
+    NativeWindow nw = getNativeWindow();
+    if(0!=buffer) {
+        WGLExt wglExt = cachedWGLExt;
+        if (nw.getSurfaceHandle() != 0) {
+          // Must release DC and pbuffer
+          // NOTE that since the context is not current, glGetError() can
+          // not be called here, so we skip the use of any composable
+          // pipelines (see WindowsOnscreenWGLContext.makeCurrentImpl)
+          if (wglExt.wglReleasePbufferDCARB(buffer, nw.getSurfaceHandle()) == 0) {
+            throw new GLException("Error releasing pbuffer device context: error code " + WGL.GetLastError());
+          }
+          ((SurfaceChangeable)nw).setSurfaceHandle(0);
+        }
+        if (!wglExt.wglDestroyPbufferARB(buffer)) {
+            throw new GLException("Error destroying pbuffer: error code " + WGL.GetLastError());
+        }
+        buffer = 0;
+    }
+  }
+
+  public long getPbuffer() {
+    return buffer;
+  }
+
+  public int getFloatingPointMode() {
+    return floatMode;
+  }
+
+  protected void swapBuffersImpl() {
+    if(DEBUG) {
+        System.err.println("unhandled swapBuffersImpl() called for: "+this);
+    }
+  }
+
+  private void createPbuffer(long parentHdc, WGLExt wglExt) {
+    int[]   iattributes = new int  [2*WindowsWGLGraphicsConfiguration.MAX_ATTRIBS];
+    float[] fattributes = new float[1];
+    int[]   floatModeTmp = new int[1];
+    int     niattribs   = 0;
+    int     width, height;
+
+    WindowsWGLGraphicsConfiguration config = (WindowsWGLGraphicsConfiguration) getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+    GLCapabilities capabilities = (GLCapabilities)config.getRequestedCapabilities();
+    GLProfile glProfile = capabilities.getGLProfile();
+
+    if (DEBUG) {
+      System.out.println("Pbuffer parentHdc = " + toHexString(parentHdc));
+      System.out.println("Pbuffer caps: " + capabilities);
+    }
+
+    if(!WindowsWGLGraphicsConfiguration.GLCapabilities2AttribList(capabilities,
+                                    iattributes,
+                                    wglExt,
+                                    true,
+                                    floatModeTmp)){
+      throw new GLException("Pbuffer-related extensions not supported");
+    }
+
+    floatMode = floatModeTmp[0];
+    boolean rtt      = capabilities.getPbufferRenderToTexture();
+    boolean rect     = capabilities.getPbufferRenderToTextureRectangle();
+    boolean useFloat = capabilities.getPbufferFloatingPointBuffers();
+    boolean ati      = false;
+
+    if (useFloat) {
+      ati = (floatMode == GLPbuffer.ATI_FLOAT);
+    }
+
+    int[] pformats = new int[WindowsWGLGraphicsConfiguration.MAX_PFORMATS];
+    int   nformats;
+    int[] nformatsTmp = new int[1];
+    if (!wglExt.wglChoosePixelFormatARB(parentHdc,
+                                     iattributes, 0,
+                                     fattributes, 0,
+                                     WindowsWGLGraphicsConfiguration.MAX_PFORMATS,
+                                     pformats, 0,
+                                     nformatsTmp, 0)) {
+      throw new GLException("pbuffer creation error: wglChoosePixelFormat() failed");
+    }
+    nformats = nformatsTmp[0];
+    if (nformats <= 0) {
+      throw new GLException("pbuffer creation error: Couldn't find a suitable pixel format");
+    }
+
+    boolean haveMultisample = wglExt.isExtensionAvailable("WGL_ARB_multisample");
+
+    if (DEBUG) {
+      System.err.println("" + nformats + " suitable pixel formats found");
+      // query pixel format
+      iattributes[0] = WGLExt.WGL_RED_BITS_ARB;
+      iattributes[1] = WGLExt.WGL_GREEN_BITS_ARB;
+      iattributes[2] = WGLExt.WGL_BLUE_BITS_ARB;
+      iattributes[3] = WGLExt.WGL_ALPHA_BITS_ARB;
+      iattributes[4] = WGLExt.WGL_DEPTH_BITS_ARB;
+      iattributes[5] = (useFloat ? (ati ? WGLExt.WGL_PIXEL_TYPE_ARB : WGLExt.WGL_FLOAT_COMPONENTS_NV) : WGLExt.WGL_RED_BITS_ARB);
+      iattributes[6] = (haveMultisample ? WGLExt.WGL_SAMPLE_BUFFERS_ARB : WGLExt.WGL_RED_BITS_ARB);
+      iattributes[7] = (haveMultisample ? WGLExt.WGL_SAMPLES_ARB : WGLExt.WGL_RED_BITS_ARB);
+      iattributes[8] = WGLExt.WGL_DRAW_TO_PBUFFER_ARB;
+      int[] ivalues = new int[9];
+      for (int i = 0; i < nformats; i++) {
+        if (!wglExt.wglGetPixelFormatAttribivARB(parentHdc, pformats[i], 0, 9, iattributes, 0, ivalues, 0)) {
+          throw new GLException("Error while querying pixel format " + pformats[i] +
+                                "'s (index " + i + "'s) capabilities for debugging");
+        }
+        System.err.print("pixel format " + pformats[i] + " (index " + i + "): ");
+        System.err.print( "r: " + ivalues[0]);
+        System.err.print(" g: " + ivalues[1]);
+        System.err.print(" b: " + ivalues[2]);
+        System.err.print(" a: " + ivalues[3]);
+        System.err.print(" depth: " + ivalues[4]);
+        if (haveMultisample) {
+          System.err.print(" multisample: " + ivalues[6]);
+        }
+        System.err.print(" samples: " + ivalues[7]);
+        if (useFloat) {
+          if (ati) {
+            if (ivalues[5] == WGLExt.WGL_TYPE_RGBA_FLOAT_ARB) {
+              System.err.print(" [ati float]");
+            } else if (ivalues[5] != WGLExt.WGL_TYPE_RGBA_ARB) {
+              System.err.print(" [unknown pixel type " + ivalues[5] + "]");
+            }
+          } else {
+            if (ivalues[5] != 0) {
+              System.err.print(" [float]");
+            }
+          }
+        }
+
+        if (ivalues[8] != 0) {
+          System.err.print(" [pbuffer]");
+        }
+        System.err.println();
+      }
+    }
+
+    long tmpBuffer = 0;
+    int whichFormat = -1;
+    // Loop is a workaround for bugs in NVidia's recent drivers
+    for (whichFormat = 0; whichFormat < nformats; whichFormat++) {
+      int format = pformats[whichFormat];
+
+      // Create the p-buffer.
+      niattribs = 0;
+
+      if (rtt) {
+        iattributes[niattribs++]   = WGLExt.WGL_TEXTURE_FORMAT_ARB;
+        if (useFloat) {
+          iattributes[niattribs++] = WGLExt.WGL_TEXTURE_FLOAT_RGB_NV;
+        } else {
+          iattributes[niattribs++] = WGLExt.WGL_TEXTURE_RGBA_ARB;
+        }
+
+        iattributes[niattribs++] = WGLExt.WGL_TEXTURE_TARGET_ARB;
+        iattributes[niattribs++] = rect ? WGLExt.WGL_TEXTURE_RECTANGLE_NV : WGLExt.WGL_TEXTURE_2D_ARB;
+
+        iattributes[niattribs++] = WGLExt.WGL_MIPMAP_TEXTURE_ARB;
+        iattributes[niattribs++] = GL.GL_FALSE;
+
+        iattributes[niattribs++] = WGLExt.WGL_PBUFFER_LARGEST_ARB;
+        iattributes[niattribs++] = GL.GL_FALSE;
+      }
+
+      iattributes[niattribs++] = 0;
+
+      tmpBuffer = wglExt.wglCreatePbufferARB(parentHdc, format, getWidth(), getHeight(), iattributes, 0);
+      if (tmpBuffer != 0) {
+        // Done
+        break;
+      }
+    }
+
+    if (tmpBuffer == 0) {
+      throw new GLException("pbuffer creation error: wglCreatePbuffer() failed: tried " + nformats +
+                            " pixel formats, last error was: " + wglGetLastError());
+    }
+
+    // Get the device context.
+    long tmpHdc = wglExt.wglGetPbufferDCARB(tmpBuffer);
+    if (tmpHdc == 0) {
+      throw new GLException("pbuffer creation error: wglGetPbufferDC() failed");
+    }
+
+    NativeWindow nw = getNativeWindow();
+    // Set up instance variables
+    buffer = tmpBuffer;
+    ((SurfaceChangeable)nw).setSurfaceHandle(tmpHdc);
+    cachedWGLExt = wglExt;
+    cachedParentHdc = parentHdc;
+
+    // Re-query chosen pixel format
+    {
+      niattribs = 0;
+      iattributes[niattribs++] = WGLExt.WGL_ACCELERATION_ARB;
+      iattributes[niattribs++] = WGLExt.WGL_RED_BITS_ARB;
+      iattributes[niattribs++] = WGLExt.WGL_GREEN_BITS_ARB;
+      iattributes[niattribs++] = WGLExt.WGL_BLUE_BITS_ARB;
+      iattributes[niattribs++] = WGLExt.WGL_ALPHA_BITS_ARB;
+      iattributes[niattribs++] = WGLExt.WGL_DEPTH_BITS_ARB;
+      iattributes[niattribs++] = WGLExt.WGL_STENCIL_BITS_ARB;
+      iattributes[niattribs++] = WGLExt.WGL_DOUBLE_BUFFER_ARB;
+      iattributes[niattribs++] = WGLExt.WGL_STEREO_ARB;
+      iattributes[niattribs++] = WGLExt.WGL_ACCUM_RED_BITS_ARB;
+      iattributes[niattribs++] = WGLExt.WGL_ACCUM_GREEN_BITS_ARB;
+      iattributes[niattribs++] = WGLExt.WGL_ACCUM_BLUE_BITS_ARB;
+      iattributes[niattribs++] = WGLExt.WGL_ACCUM_ALPHA_BITS_ARB;
+      iattributes[niattribs++] = (useFloat ? (ati ? WGLExt.WGL_PIXEL_TYPE_ARB : WGLExt.WGL_FLOAT_COMPONENTS_NV) : WGLExt.WGL_RED_BITS_ARB);
+      iattributes[niattribs++] = (haveMultisample ? WGLExt.WGL_SAMPLE_BUFFERS_ARB : WGLExt.WGL_RED_BITS_ARB);
+      iattributes[niattribs++] = (haveMultisample ? WGLExt.WGL_SAMPLES_ARB : WGLExt.WGL_RED_BITS_ARB);
+      iattributes[niattribs++] = WGLExt.WGL_DRAW_TO_PBUFFER_ARB;
+      int[] ivalues = new int[niattribs];
+      if (wglExt.wglGetPixelFormatAttribivARB(parentHdc, pformats[whichFormat], 0, niattribs, iattributes, 0, ivalues, 0)) {
+        GLCapabilities newCaps = WindowsWGLGraphicsConfiguration.AttribList2GLCapabilities(glProfile, iattributes, niattribs, ivalues, true, false, true);
+        PIXELFORMATDESCRIPTOR pfd = WindowsWGLGraphicsConfiguration.createPixelFormatDescriptor();
+        if (WGL.DescribePixelFormat(parentHdc, pformats[whichFormat], pfd.size(), pfd) == 0) {
+          if (DEBUG) {
+              System.err.println("Unable to describe pixel format (Continue: true) " + whichFormat + "/" + nformats + " pfdID " + pformats[whichFormat]+":\n\t"+newCaps);
+          }
+        }
+        if(newCaps.isOnscreen()) {
+          throw new GLException("Error: Selected Onscreen Caps for PBuffer: "+newCaps+"\n\t"+newCaps);
+        }
+        config.setCapsPFD(newCaps, pfd, pformats[whichFormat], true);
+      } else {
+        PIXELFORMATDESCRIPTOR pfd = WindowsWGLGraphicsConfiguration.createPixelFormatDescriptor();
+        if (WGL.DescribePixelFormat(parentHdc, pformats[whichFormat], pfd.size(), pfd) == 0) {
+          throw new GLException("Unable to describe pixel format " + pformats[whichFormat]);
+        }
+        GLCapabilities newCaps = WindowsWGLGraphicsConfiguration.PFD2GLCapabilities(glProfile, pfd, false, true);
+        if(newCaps.isOnscreen()) {
+          throw new GLException("Error: Selected Onscreen Caps for PBuffer: "+newCaps+"\n\t"+newCaps);
+        }
+        config.setCapsPFD(newCaps, pfd, pformats[whichFormat], false);
+      }
+    }
+
+    // Determine the actual width and height we were able to create.
+    int[] tmp = new int[1];
+    wglExt.wglQueryPbufferARB( buffer, WGLExt.WGL_PBUFFER_WIDTH_ARB,  tmp, 0 );
+    width = tmp[0];
+    wglExt.wglQueryPbufferARB( buffer, WGLExt.WGL_PBUFFER_HEIGHT_ARB, tmp, 0 );
+    height = tmp[0];
+    ((SurfaceChangeable)nw).setSize(width, height);
+  }
+
+  private static String wglGetLastError() {
+    return WindowsWGLDrawableFactory.wglGetLastError();
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLContext.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLContext.java
new file mode 100644
index 000000000..08c77539c
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLContext.java
@@ -0,0 +1,439 @@
+/*
+ * 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 com.jogamp.opengl.impl.windows.wgl;
+
+import java.nio.*;
+import java.util.*;
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.gluegen.runtime.ProcAddressTable;
+
+public class WindowsWGLContext extends GLContextImpl {
+  protected long hglrc;
+  private boolean wglGetExtensionsStringEXTInitialized;
+  private boolean wglGetExtensionsStringEXTAvailable;
+  private boolean wglMakeContextCurrentInitialized;
+  private boolean wglMakeContextCurrentARBAvailable;
+  private boolean wglMakeContextCurrentEXTAvailable;
+  private static final Map/*<String, String>*/ functionNameMap;
+  private static final Map/*<String, String>*/ extensionNameMap;
+  private WGLExt wglExt;
+  // Table that holds the addresses of the native C-language entry points for
+  // WGL extension functions.
+  private WGLExtProcAddressTable wglExtProcAddressTable;
+
+  static {
+    functionNameMap = new HashMap();
+    functionNameMap.put("glAllocateMemoryNV", "wglAllocateMemoryNV");
+    functionNameMap.put("glFreeMemoryNV", "wglFreeMemoryNV");
+
+    extensionNameMap = new HashMap();
+    extensionNameMap.put("GL_ARB_pbuffer", "WGL_ARB_pbuffer");
+    extensionNameMap.put("GL_ARB_pixel_format", "WGL_ARB_pixel_format");
+  }
+
+  // FIXME: figure out how to hook back in the Java 2D / JOGL bridge
+  public WindowsWGLContext(GLDrawableImpl drawable, GLDrawableImpl drawableRead,
+                           GLContext shareWith) {
+    super(drawable, drawableRead, shareWith);
+  }
+
+  public WindowsWGLContext(GLDrawableImpl drawable,
+                           GLContext shareWith) {
+    this(drawable, null, shareWith);
+  }
+  
+  public Object getPlatformGLExtensions() {
+    return getWGLExt();
+  }
+
+  public WGLExt getWGLExt() {
+    if (wglExt == null) {
+      wglExt = new WGLExtImpl(this);
+    }
+    return wglExt;
+  }
+
+  public boolean wglMakeContextCurrent(long hDrawDC, long hReadDC, long hglrc) {
+    WGLExt wglExt = getWGLExt();
+    if (!wglMakeContextCurrentInitialized) {
+      wglMakeContextCurrentARBAvailable = isFunctionAvailable("wglMakeContextCurrentARB");
+      wglMakeContextCurrentEXTAvailable = isFunctionAvailable("wglMakeContextCurrentEXT");
+      wglMakeContextCurrentInitialized = true;
+      if(DEBUG) {
+          System.err.println("WindowsWGLContext.wglMakeContextCurrent: ARB "+wglMakeContextCurrentARBAvailable+", EXT "+wglMakeContextCurrentEXTAvailable);
+      }
+    }
+    if(wglMakeContextCurrentARBAvailable) {
+        return wglExt.wglMakeContextCurrentARB(hDrawDC, hReadDC, hglrc);
+    } else if(wglMakeContextCurrentEXTAvailable) {
+        return wglExt.wglMakeContextCurrentEXT(hDrawDC, hReadDC, hglrc);
+    }
+    return WGL.wglMakeCurrent(hDrawDC, hglrc);
+  }
+
+  public final ProcAddressTable getPlatformExtProcAddressTable() {
+    return getWGLExtProcAddressTable();
+  }
+
+  public final WGLExtProcAddressTable getWGLExtProcAddressTable() {
+    return wglExtProcAddressTable;
+  }
+
+  protected String mapToRealGLFunctionName(String glFunctionName) {
+    String lookup = (String) functionNameMap.get(glFunctionName);
+    if (lookup != null) {
+      return lookup;
+    }
+    return glFunctionName;
+  }
+
+  protected String mapToRealGLExtensionName(String glExtensionName) {
+    String lookup = (String) extensionNameMap.get(glExtensionName);
+    if (lookup != null) {
+      return lookup;
+    }
+    return glExtensionName;
+  }
+
+  /**
+   * Creates and initializes an appropriate OpenGL context. Should only be
+   * called by {@link #makeCurrentImpl()}.
+   */
+  protected void create() {
+    GLCapabilities glCaps = drawable.getChosenGLCapabilities();
+    if(DEBUG) {
+          System.err.println("WindowsWGLContext.create got "+glCaps);
+    }
+
+    if (drawable.getNativeWindow().getSurfaceHandle() == 0) {
+      throw new GLException("Internal error: attempted to create OpenGL context without an associated drawable");
+    }
+    // Windows can set up sharing of display lists after creation time
+    WindowsWGLContext other = (WindowsWGLContext) GLContextShareSet.getShareContext(this);
+    long hglrc2 = 0;
+    if (other != null) {
+      hglrc2 = other.getHGLRC();
+      if (hglrc2 == 0) {
+        throw new GLException("GLContextShareSet returned an invalid OpenGL context");
+      }
+    }
+
+    // To use WGL_ARB_create_context, we have to make a temp context current,
+    // so we are able to use GetProcAddress
+    long temp_hglrc = WGL.wglCreateContext(drawable.getNativeWindow().getSurfaceHandle());
+    if (DEBUG) {
+      System.err.println(getThreadName() + ": !!! Created temp OpenGL context " + toHexString(temp_hglrc) + " for " + this + ", device context " + toHexString(drawable.getNativeWindow().getSurfaceHandle()) + ", not yet sharing");
+    }
+    if (temp_hglrc == 0) {
+      throw new GLException("Unable to create temp OpenGL context for device context " + toHexString(drawable.getNativeWindow().getSurfaceHandle()));
+    } else {
+        if (!WGL.wglMakeCurrent(drawable.getNativeWindow().getSurfaceHandle(), temp_hglrc)) {
+            throw new GLException("Error making temp context current: 0x" + Integer.toHexString(WGL.GetLastError()));
+        }
+        setGLFunctionAvailability(true);
+
+        if( !isFunctionAvailable("wglCreateContextAttribsARB") ||
+            !isExtensionAvailable("WGL_ARB_create_context") ) {
+            if(glCaps.getGLProfile().isGL3()) {
+              WGL.wglMakeCurrent(0, 0);
+              WGL.wglDeleteContext(temp_hglrc);
+              throw new GLException("Unable to create OpenGL >= 3.1 context (no WGL_ARB_create_context)");
+            }
+
+            // continue with temp context for GL < 3.0
+            hglrc = temp_hglrc;
+            if(DEBUG) {
+              System.err.println("WindowsWGLContext.create done (old ctx < 3.0 - no WGL_ARB_create_context) 0x"+Long.toHexString(hglrc));
+            }
+        } else {
+            WGLExt wglExt = getWGLExt();
+
+            // preset with default values
+            int attribs[] = {
+                /*  0 */ WGLExt.WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
+                /*  2 */ WGLExt.WGL_CONTEXT_MINOR_VERSION_ARB, 0,
+                /*  4 */ WGLExt.WGL_CONTEXT_FLAGS_ARB,         0 /* WGLExt.WGL_CONTEXT_DEBUG_BIT_ARB */,
+                /*  6 */ 0,                                    0,
+                /*  8 */ 0
+            };
+
+            if(glCaps.getGLProfile().isGL3()) {
+                // Try >= 3.2 core first !
+                // In contrast to GLX no verify with a None drawable binding (default framebuffer) is necessary,
+                // if no 3.2 is available creation fails already!
+                attribs[0+1]  = 3;
+                attribs[2+1]  = 2;
+                if(glCaps.getGLProfile().isGL3bc()) {
+                    attribs[6+0]  = WGLExt.WGL_CONTEXT_PROFILE_MASK_ARB;
+                    attribs[6+1]  = WGLExt.WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
+                }
+                /**
+                 * don't stricten requirements any further, even compatible would be fine
+                 *
+                 } else {
+                    attribs[6+0]  = WGLExt.WGL_CONTEXT_PROFILE_MASK_ARB;
+                    attribs[6+1]  = WGLExt.WGL_CONTEXT_CORE_PROFILE_BIT_ARB;
+                 } 
+                 */
+                hglrc = wglExt.wglCreateContextAttribsARB(drawable.getNativeWindow().getSurfaceHandle(), hglrc2, attribs, 0); 
+                if(0==hglrc) {
+                    if(DEBUG) {
+                        System.err.println("WindowsWGLContext.createContext couldn't create >= 3.2 core context - fallback");
+                    }
+                    // Try >= 3.1 forward compatible - last resort for GL3 !
+                    attribs[0+1]  = 3;
+                    attribs[2+1]  = 1;
+                    if(!glCaps.getGLProfile().isGL3bc()) {
+                        attribs[4+1] |= WGLExt.WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
+                    }
+                    attribs[6+0]  = 0;
+                    attribs[6+1]  = 0;
+                } else if(DEBUG) {
+                  System.err.println("WindowsWGLContext.createContext >= 3.2 available 0x"+Long.toHexString(hglrc));
+                }
+            }
+            if(0==hglrc) {
+                // 3.1 or 3.0 ..
+                hglrc = wglExt.wglCreateContextAttribsARB(drawable.getNativeWindow().getSurfaceHandle(), hglrc2, attribs, 0); 
+                if(DEBUG) {
+                  if(0==hglrc) {
+                      System.err.println("WindowsWGLContext.createContext couldn't create >= 3.0 context - fallback");
+                  } else {
+                      System.err.println("WindowsWGLContext.createContext >= 3.0 available 0x"+Long.toHexString(hglrc));
+                  }
+                }
+            }
+
+            if(0==hglrc) {
+                if(glCaps.getGLProfile().isGL3()) {
+                  WGL.wglMakeCurrent(0, 0);
+                  WGL.wglDeleteContext(temp_hglrc);
+                  throw new GLException("Unable to create OpenGL >= 3.1 context (have WGL_ARB_create_context)");
+                }
+
+                // continue with temp context for GL < 3.0
+                hglrc = temp_hglrc;
+                if (!WGL.wglMakeCurrent(drawable.getNativeWindow().getSurfaceHandle(), hglrc)) {
+                    throw new GLException("Error making old context current: 0x" + Integer.toHexString(WGL.GetLastError()));
+                }
+                updateGLProcAddressTable();
+                if(DEBUG) {
+                  System.err.println("WindowsWGLContext.create done (old ctx < 3.0 - no 3.0) 0x"+Long.toHexString(hglrc));
+                }
+            } else {
+                hglrc2 = 0; // mark as shared ..
+                WGL.wglMakeCurrent(0, 0);
+                WGL.wglDeleteContext(temp_hglrc);
+
+                if (!WGL.wglMakeCurrent(drawable.getNativeWindow().getSurfaceHandle(), hglrc)) {
+                    throw new GLException("Error making new context current: 0x" + Integer.toHexString(WGL.GetLastError()));
+                }
+                updateGLProcAddressTable();
+                if(DEBUG) {
+                  System.err.println("WindowsWGLContext.create done (new ctx >= 3.0) 0x"+Long.toHexString(hglrc));
+                }
+            }
+        }
+    }
+    if(0!=hglrc2) {
+        if (!WGL.wglShareLists(hglrc2, hglrc)) {
+            throw new GLException("wglShareLists(" + toHexString(hglrc2) +
+                                  ", " + toHexString(hglrc) + ") failed: error code 0x" +
+                                  Integer.toHexString(WGL.GetLastError()));
+        }
+    }
+    GLContextShareSet.contextCreated(this);
+    WGL.wglMakeCurrent(0, 0); // release immediatly to gain from ARB/EXT wglMakeContextCurrent(draw, read, ctx)!
+    if (DEBUG) {
+      System.err.println(getThreadName() + ": !!! Created OpenGL context " + toHexString(hglrc) + " for " + this + ", device context " + toHexString(drawable.getNativeWindow().getSurfaceHandle()) + ", sharing with " + toHexString(hglrc2));
+    }
+  }
+  
+  protected int makeCurrentImpl() throws GLException {
+    if (drawable.getNativeWindow().getSurfaceHandle() == 0) {
+        if (DEBUG) {
+          System.err.println("drawable not properly initialized");
+        }
+        return CONTEXT_NOT_CURRENT;
+    }
+    boolean created = false;
+    if (hglrc == 0) {
+      create();
+      if (DEBUG) {
+        System.err.println(getThreadName() + ": !!! Created GL context for " + getClass().getName());
+      }
+      created = true;
+    }
+
+    if (WGL.wglGetCurrentContext() != hglrc) {
+      if (!wglMakeContextCurrent(drawable.getNativeWindow().getSurfaceHandle(), drawableRead.getNativeWindow().getSurfaceHandle(), hglrc)) {
+        throw new GLException("Error making context current: 0x" + Integer.toHexString(WGL.GetLastError()));
+      } else {
+        if (DEBUG && VERBOSE) {
+          System.err.println(getThreadName() + ": wglMakeCurrent(hdc " + toHexString(drawable.getNativeWindow().getSurfaceHandle()) +
+                             ", hglrc " + toHexString(hglrc) + ") succeeded");
+        }
+      }
+    }
+
+    if (created) {
+      setGLFunctionAvailability(false);
+
+      WindowsWGLGraphicsConfiguration config = 
+        (WindowsWGLGraphicsConfiguration)drawable.getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+      config.updateCapabilitiesByWGL(this);
+
+      return CONTEXT_CURRENT_NEW;
+    }
+    return CONTEXT_CURRENT;
+  }
+
+  protected void releaseImpl() throws GLException {
+    if (!wglMakeContextCurrent(0, 0, 0)) {
+        throw new GLException("Error freeing OpenGL context: 0x" + Integer.toHexString(WGL.GetLastError()));
+    }
+  }
+
+  protected void destroyImpl() throws GLException {
+    if (DEBUG) {
+        Exception e = new Exception(getThreadName() + ": !!! Destroyed OpenGL context " + toHexString(hglrc));
+        e.printStackTrace();
+    }
+    if (hglrc != 0) {
+      if (!WGL.wglDeleteContext(hglrc)) {
+        throw new GLException("Unable to delete OpenGL context");
+      }
+      hglrc = 0;
+      GLContextShareSet.contextDestroyed(this);
+    }
+  }
+
+  public boolean isCreated() {
+    return (hglrc != 0);
+  }
+
+  public void copy(GLContext source, int mask) throws GLException {
+    long dst = getHGLRC();
+    long src = ((WindowsWGLContext) source).getHGLRC();
+    if (src == 0) {
+      throw new GLException("Source OpenGL context has not been created");
+    }
+    if (dst == 0) {
+      throw new GLException("Destination OpenGL context has not been created");
+    }
+    if (!WGL.wglCopyContext(src, dst, mask)) {
+      throw new GLException("wglCopyContext failed");
+    }
+  }
+
+  protected void updateGLProcAddressTable() {
+    if (DEBUG) {
+      System.err.println(getThreadName() + ": !!! Initializing WGL extension address table for " + this);
+    }
+    wglGetExtensionsStringEXTInitialized=false;
+    wglGetExtensionsStringEXTAvailable=false;
+    wglMakeContextCurrentInitialized=false;
+    wglMakeContextCurrentARBAvailable=false;
+    wglMakeContextCurrentEXTAvailable=false;
+
+    if (wglExtProcAddressTable == null) {
+      // FIXME: cache ProcAddressTables by capability bits so we can
+      // share them among contexts with the same capabilities
+      wglExtProcAddressTable = new WGLExtProcAddressTable();
+    }          
+    resetProcAddressTable(getWGLExtProcAddressTable());
+    super.updateGLProcAddressTable();
+  }
+  
+  public String getPlatformExtensionsString() {
+    if (!wglGetExtensionsStringEXTInitialized) {
+      wglGetExtensionsStringEXTAvailable = (WGL.wglGetProcAddress("wglGetExtensionsStringEXT") != 0);
+      wglGetExtensionsStringEXTInitialized = true;
+    }
+    if (wglGetExtensionsStringEXTAvailable) {
+      return getWGLExt().wglGetExtensionsStringEXT();
+    } else {
+      return "";
+    }
+  }
+
+  protected void setSwapIntervalImpl(int interval) {
+    WGLExt wglExt = getWGLExt();
+    if (wglExt.isExtensionAvailable("WGL_EXT_swap_control")) {
+      if ( wglExt.wglSwapIntervalEXT(interval) ) {
+        currentSwapInterval = interval ;
+      }
+    }
+  }
+
+  public ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3) {
+    return getWGLExt().wglAllocateMemoryNV(arg0, arg1, arg2, arg3);
+  }
+
+  public int getOffscreenContextPixelDataType() {
+    throw new GLException("Should not call this");
+  }
+
+  public int getOffscreenContextReadBuffer() {
+    throw new GLException("Should not call this");
+  }
+
+  public boolean offscreenImageNeedsVerticalFlip() {
+    throw new GLException("Should not call this");
+  }
+
+  public void bindPbufferToTexture() {
+    throw new GLException("Should not call this");
+  }
+
+  public void releasePbufferFromTexture() {
+    throw new GLException("Should not call this");
+  }
+
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  //
+
+  public long getHGLRC() {
+    return hglrc;
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLDrawable.java
new file mode 100644
index 000000000..c76766b2e
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLDrawable.java
@@ -0,0 +1,129 @@
+/*
+ * 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 com.jogamp.opengl.impl.windows.wgl;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.gluegen.runtime.DynamicLookupHelper;
+
+public abstract class WindowsWGLDrawable extends GLDrawableImpl {
+  private static final int MAX_SET_PIXEL_FORMAT_FAIL_COUNT = 5;
+  private static final boolean PROFILING = Debug.debug("WindowsWGLDrawable.profiling");
+  private static final int PROFILING_TICKS = 200;
+  private int  profilingLockSurfaceTicks;
+  private long profilingLockSurfaceTime;
+  private int  profilingUnlockSurfaceTicks;
+  private long profilingUnlockSurfaceTime;
+  private int  profilingSwapBuffersTicks;
+  private long profilingSwapBuffersTime;
+
+
+  public WindowsWGLDrawable(GLDrawableFactory factory, NativeWindow comp, boolean realized) {
+    super(factory, comp, realized);
+  }
+
+  protected void setRealizedImpl() {
+    if(!realized) {
+        return; // nothing todo ..
+    }
+
+    if(NativeWindow.LOCK_SURFACE_NOT_READY == lockSurface()) {
+      throw new GLException("WindowsWGLDrawable.setRealized(true): lockSurface - surface not ready");
+    }
+    try {
+        NativeWindow nativeWindow = getNativeWindow();
+        WindowsWGLGraphicsConfiguration config = (WindowsWGLGraphicsConfiguration)nativeWindow.getGraphicsConfiguration().getNativeGraphicsConfiguration();
+        config.updateGraphicsConfiguration(getFactory(), nativeWindow);
+        if (DEBUG) {
+          System.err.println("!!! WindowsWGLDrawable.setRealized(true): "+config);
+        }
+    } finally {
+        unlockSurface();
+    }
+  }
+
+  protected void swapBuffersImpl() {
+    boolean didLock = false;
+
+    try {
+        if ( !isSurfaceLocked() ) {
+            // Usually the surface shall be locked within [makeCurrent .. swap .. release]
+            if (lockSurface() == NativeWindow.LOCK_SURFACE_NOT_READY) {
+                return;
+            }
+            didLock = true;
+        }
+
+        long startTime = 0;
+        if (PROFILING) {
+          startTime = System.currentTimeMillis();
+        }
+
+        if (!WGL.SwapBuffers(getNativeWindow().getSurfaceHandle()) && (WGL.GetLastError() != 0)) {
+          throw new GLException("Error swapping buffers");
+        }
+
+        if (PROFILING) {
+          long endTime = System.currentTimeMillis();
+          profilingSwapBuffersTime += (endTime - startTime);
+          int ticks = PROFILING_TICKS;
+          if (++profilingSwapBuffersTicks == ticks) {
+            System.err.println("SwapBuffers calls: " + profilingSwapBuffersTime + " ms / " + ticks + "  calls (" +
+                               ((float) profilingSwapBuffersTime / (float) ticks) + " ms/call)");
+            profilingSwapBuffersTime = 0;
+            profilingSwapBuffersTicks = 0;
+          }
+        }
+    } finally {
+        if (didLock) {
+          unlockSurface();
+        }
+    }
+  }
+
+  public DynamicLookupHelper getDynamicLookupHelper() {
+    return (WindowsWGLDrawableFactory) getFactoryImpl() ;
+  }
+
+  protected static String getThreadName() {
+    return Thread.currentThread().getName();
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLDrawableFactory.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLDrawableFactory.java
new file mode 100644
index 000000000..38b9bac51
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLDrawableFactory.java
@@ -0,0 +1,279 @@
+/*
+ * 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 com.jogamp.opengl.impl.windows.wgl;
+
+import java.nio.*;
+import java.util.*;
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.NWReflection;
+import com.jogamp.gluegen.runtime.DynamicLookupHelper;
+import com.sun.nativewindow.impl.NullWindow;
+
+public class WindowsWGLDrawableFactory extends GLDrawableFactoryImpl implements DynamicLookupHelper {
+  private static final boolean VERBOSE = Debug.verbose();
+
+  // Handle to GLU32.dll
+  // FIXME: this should go away once we delete support for the C GLU library
+  private long hglu32;
+
+  // Handle to core OpenGL32.dll
+  private long hopengl32;
+
+  public WindowsWGLDrawableFactory() {
+    super();
+
+    // Register our GraphicsConfigurationFactory implementations
+    // The act of constructing them causes them to be registered
+    new WindowsWGLGraphicsConfigurationFactory();
+    try {
+      NWReflection.createInstance("com.jogamp.opengl.impl.windows.wgl.awt.WindowsAWTWGLGraphicsConfigurationFactory",
+                                  new Object[] {});
+    } catch (Throwable t) { }
+
+    loadOpenGL32Library();
+  }
+
+  public GLDrawableImpl createOnscreenDrawable(NativeWindow target) {
+    if (target == null) {
+      throw new IllegalArgumentException("Null target");
+    }
+    return new WindowsOnscreenWGLDrawable(this, target);
+  }
+
+  protected GLDrawableImpl createOffscreenDrawable(NativeWindow target) {
+    return new WindowsOffscreenWGLDrawable(this, target);
+  }
+
+  private boolean pbufferSupportInitialized = false;
+  private boolean canCreateGLPbuffer = false;
+  public boolean canCreateGLPbuffer() {
+    if (!pbufferSupportInitialized) {
+      final GLDrawableFactory factory = this;
+      Runnable r = new Runnable() {
+          public void run() {
+            WindowsDummyWGLDrawable dummyDrawable = new WindowsDummyWGLDrawable(factory);
+            GLContext dummyContext  = dummyDrawable.createContext(null);
+            if (dummyContext != null) {
+              GLContext lastContext = GLContext.getCurrent();
+              if (lastContext != null) {
+                lastContext.release();
+              }
+              dummyContext.makeCurrent();
+              GL dummyGL = dummyContext.getGL();
+              canCreateGLPbuffer = dummyGL.isExtensionAvailable("GL_ARB_pbuffer");
+              pbufferSupportInitialized = true;
+              dummyContext.release();
+              dummyContext.destroy();
+              dummyDrawable.destroy();
+              if (lastContext != null) {
+                lastContext.makeCurrent();
+              }
+            }
+          }
+        };
+      maybeDoSingleThreadedWorkaround(r);
+    }
+    if (DEBUG) {
+      System.err.println("WindowsWGLDrawableFactory.canCreateGLPbuffer() = " + canCreateGLPbuffer);
+    }
+    return canCreateGLPbuffer;
+  }
+
+  protected GLDrawableImpl createGLPbufferDrawableImpl(final NativeWindow target) {
+    final List returnList = new ArrayList();
+    final GLDrawableFactory factory = this;
+    Runnable r = new Runnable() {
+        public void run() {
+          WindowsDummyWGLDrawable dummyDrawable = new WindowsDummyWGLDrawable(factory);
+          WindowsWGLContext       dummyContext  = (WindowsWGLContext) dummyDrawable.createContext(null);
+          GLContext lastContext = GLContext.getCurrent();
+          if (lastContext != null) {
+            lastContext.release();
+          }
+          dummyContext.makeCurrent();
+          WGLExt dummyWGLExt = dummyContext.getWGLExt();
+          try {
+            GLDrawableImpl pbufferDrawable = new WindowsPbufferWGLDrawable(factory, target,
+                                                                           dummyDrawable,
+                                                                           dummyWGLExt);
+            returnList.add(pbufferDrawable);
+            dummyContext.release();
+            dummyContext.destroy();
+            dummyDrawable.destroy();
+          } finally {
+            if (lastContext != null) {
+              lastContext.makeCurrent();
+            }
+          }
+        }
+      };
+    maybeDoSingleThreadedWorkaround(r);
+    return (GLDrawableImpl) returnList.get(0);
+  }
+
+  protected NativeWindow createOffscreenWindow(GLCapabilities capabilities, GLCapabilitiesChooser chooser, int width, int height) {
+    AbstractGraphicsScreen screen = DefaultGraphicsScreen.createDefault();
+    NullWindow nw = new NullWindow(WindowsWGLGraphicsConfigurationFactory.chooseGraphicsConfigurationStatic(
+                                   capabilities, chooser, screen) );
+    nw.setSize(width, height);
+    return nw;
+  }
+ 
+  public GLContext createExternalGLContext() {
+    return WindowsExternalWGLContext.create(this, null);
+  }
+
+  public boolean canCreateExternalGLDrawable() {
+    return true;
+  }
+
+  public GLDrawable createExternalGLDrawable() {
+    return WindowsExternalWGLDrawable.create(this, null);
+  }
+
+  public void loadOpenGL32Library() {
+    if (hopengl32 == 0) {
+      hopengl32 = WGL.LoadLibraryA("OpenGL32");
+      if (DEBUG) {
+        if (hopengl32 == 0) {
+          System.err.println("WindowsWGLDrawableFactory: Could not load OpenGL32.dll - maybe an embedded device");
+        }
+      }
+    }
+  }
+
+  public void loadGLULibrary() {
+    if (hglu32 == 0) {
+      hglu32 = WGL.LoadLibraryA("GLU32");
+      if (hglu32 == 0) {
+        throw new GLException("Error loading GLU32.DLL");
+      }
+    }
+  }
+
+  public long dynamicLookupFunction(String glFuncName) {
+    long res = WGL.wglGetProcAddress(glFuncName);
+    if (res == 0) {
+      // It may happen that a driver doesn't return the OpenGL32 core function pointer
+      // with wglGetProcAddress (e.g. NVidia GL 3.1) - hence we have to look harder.
+      if (hopengl32 != 0) {
+        res = WGL.GetProcAddress(hopengl32, glFuncName);
+      }
+    }
+    if (res == 0) {
+      // GLU routines aren't known to the OpenGL function lookup
+      if (hglu32 != 0) {
+        res = WGL.GetProcAddress(hglu32, glFuncName);
+      }
+    }
+    return res;
+  }
+
+  static String wglGetLastError() {
+    long err = WGL.GetLastError();
+    String detail = null;
+    switch ((int) err) {
+      case WGL.ERROR_INVALID_PIXEL_FORMAT: detail = "ERROR_INVALID_PIXEL_FORMAT";       break;
+      case WGL.ERROR_NO_SYSTEM_RESOURCES:  detail = "ERROR_NO_SYSTEM_RESOURCES";        break;
+      case WGL.ERROR_INVALID_DATA:         detail = "ERROR_INVALID_DATA";               break;
+      case WGL.ERROR_PROC_NOT_FOUND:       detail = "ERROR_PROC_NOT_FOUND";             break;
+      case WGL.ERROR_INVALID_WINDOW_HANDLE:detail = "ERROR_INVALID_WINDOW_HANDLE";      break;
+      default:                             detail = "(Unknown error code " + err + ")"; break;
+    }
+    return detail;
+  }
+
+  public boolean canCreateContextOnJava2DSurface() {
+    return false;
+  }
+
+  public GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
+    throws GLException {
+    throw new GLException("Unimplemented on this platform");
+  }
+
+  //------------------------------------------------------
+  // Gamma-related functionality
+  //
+
+  private static final int GAMMA_RAMP_LENGTH = 256;
+
+  protected int getGammaRampLength() {
+    return GAMMA_RAMP_LENGTH;
+  }
+
+  protected boolean setGammaRamp(float[] ramp) {
+    short[] rampData = new short[3 * GAMMA_RAMP_LENGTH];
+    for (int i = 0; i < GAMMA_RAMP_LENGTH; i++) {
+      short scaledValue = (short) (ramp[i] * 65535);
+      rampData[i] = scaledValue;
+      rampData[i +     GAMMA_RAMP_LENGTH] = scaledValue;
+      rampData[i + 2 * GAMMA_RAMP_LENGTH] = scaledValue;
+    }
+
+    long screenDC = WGL.GetDC(0);
+    boolean res = WGL.SetDeviceGammaRamp(screenDC, ShortBuffer.wrap(rampData));
+    WGL.ReleaseDC(0, screenDC);
+    return res;
+  }
+
+  protected Buffer getGammaRamp() {
+    ShortBuffer rampData = ShortBuffer.wrap(new short[3 * GAMMA_RAMP_LENGTH]);
+    long screenDC = WGL.GetDC(0);
+    boolean res = WGL.GetDeviceGammaRamp(screenDC, rampData);
+    WGL.ReleaseDC(0, screenDC);
+    if (!res) {
+      return null;
+    }
+    return rampData;
+  }
+
+  protected void resetGammaRamp(Buffer originalGammaRamp) {
+    if (originalGammaRamp == null) {
+      // getGammaRamp failed earlier
+      return;
+    }
+    long screenDC = WGL.GetDC(0);
+    WGL.SetDeviceGammaRamp(screenDC, originalGammaRamp);
+    WGL.ReleaseDC(0, screenDC);
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLGraphicsConfiguration.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLGraphicsConfiguration.java
new file mode 100644
index 000000000..bb59434b7
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLGraphicsConfiguration.java
@@ -0,0 +1,638 @@
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.windows.wgl;
+
+import java.util.*;
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.gluegen.runtime.NativeLibrary;
+
+public class WindowsWGLGraphicsConfiguration extends DefaultGraphicsConfiguration implements Cloneable {
+    // Keep this under the same debug flag as the drawable factory for convenience
+    protected static final boolean DEBUG = com.jogamp.opengl.impl.Debug.debug("GraphicsConfiguration");
+    
+    protected static final int MAX_PFORMATS = 256;
+    protected static final int MAX_ATTRIBS  = 256;
+
+    private PIXELFORMATDESCRIPTOR pixelfmt;
+    private int pixelfmtID;
+    private boolean isChosen = false;
+    private GLCapabilitiesChooser chooser;
+    private boolean choosenByWGLPixelFormat=false;
+
+    public WindowsWGLGraphicsConfiguration(AbstractGraphicsScreen screen, GLCapabilities capsChosen, GLCapabilities capsRequested,
+                                           PIXELFORMATDESCRIPTOR pixelfmt, int pixelfmtID, GLCapabilitiesChooser chooser) {
+        super(screen, capsChosen, capsRequested);
+        this.chooser=chooser;
+        this.pixelfmt = pixelfmt;
+        this.pixelfmtID = pixelfmtID;
+    }
+
+    public static WindowsWGLGraphicsConfiguration create(long hdc, int pfdID, 
+                                                         GLProfile glp, AbstractGraphicsScreen screen, boolean onscreen, boolean usePBuffer)
+    {
+        if(pfdID<=0) {
+            throw new GLException("Invalid pixelformat id "+pfdID);
+        }
+        if(null==glp) {
+          glp = GLProfile.getDefault();
+        }
+        PIXELFORMATDESCRIPTOR pfd = createPixelFormatDescriptor();
+        if (WGL.DescribePixelFormat(hdc, pfdID, pfd.size(), pfd) == 0) {
+            throw new GLException("Unable to describe pixel format " + pfdID);
+        }
+
+        GLCapabilities caps = PFD2GLCapabilities(glp, pfd, onscreen, usePBuffer);
+        if(null==caps) {
+            throw new GLException("Couldn't choose Capabilities by: HDC 0x"+Long.toHexString(hdc)+", pfdID "+pfdID);
+        }
+        WindowsWGLGraphicsConfiguration cfg = new WindowsWGLGraphicsConfiguration(screen, caps, caps, pfd, pfdID, new DefaultGLCapabilitiesChooser());
+        cfg.setCapsPFD(caps, pfd, pfdID, false);
+
+        return cfg;
+    }
+
+    public Object clone() {
+        return super.clone();
+    }
+
+    /** Update config - before having a valid context */
+    protected void updateGraphicsConfiguration(GLDrawableFactory factory, NativeWindow nativeWindow) {
+        WindowsWGLGraphicsConfigurationFactory.updateGraphicsConfiguration(chooser, factory, nativeWindow);
+    }
+
+    /** Update config - after having a valid and current context */
+    protected void updateCapabilitiesByWGL(GLContextImpl context) {
+        if(choosenByWGLPixelFormat) return; // already done ..
+
+        GLCapabilities capabilities = (GLCapabilities) getRequestedCapabilities();
+        boolean onscreen = capabilities.isOnscreen();
+        boolean usePBuffer = capabilities.isPBuffer();
+        GLProfile glp = capabilities.getGLProfile();
+
+        WGLExt wglExt = (WGLExt) context.getPlatformGLExtensions();
+        GLDrawable drawable = context.getGLDrawable();
+        NativeWindow nativeWindow = drawable.getNativeWindow();
+        long hdc = nativeWindow.getSurfaceHandle();
+
+        GLCapabilities[] caps = HDC2GLCapabilities(wglExt, hdc, getPixelFormatID(), glp, true, onscreen, usePBuffer);
+        if(null!=caps && null!=caps[0]) {
+            setCapsPFD(caps[0], getPixelFormat(), getPixelFormatID(), true);
+        }
+    }
+
+    protected void setCapsPFD(GLCapabilities caps, PIXELFORMATDESCRIPTOR pfd, int pfdID, boolean choosenByWGLPixelFormat) {
+        this.pixelfmt = pfd;
+        this.pixelfmtID = pfdID;
+        setChosenCapabilities(caps);
+        this.isChosen=true;
+        this.choosenByWGLPixelFormat=choosenByWGLPixelFormat;
+        if (DEBUG) {
+            System.err.println("*** setCapsPFD: WGL-Choosen "+choosenByWGLPixelFormat+", pfdID "+pfdID+", "+caps);
+        }
+    }
+
+    public boolean getCapabilitiesChosen() {
+        return isChosen;
+    }
+
+    public PIXELFORMATDESCRIPTOR getPixelFormat()   { return pixelfmt; }
+    public int getPixelFormatID() { return pixelfmtID; }
+    public boolean isChoosenByWGL() { return choosenByWGLPixelFormat; }
+
+    private static int haveWGLChoosePixelFormatARB = -1;
+    private static int haveWGLARBMultisample = -1;
+
+    public static GLCapabilities[] HDC2GLCapabilities(WGLExt wglExt, long hdc, int pfdIDOnly,
+                                                      GLProfile glp, boolean relaxed, boolean onscreen, boolean usePBuffer) {
+    
+        if(haveWGLChoosePixelFormatARB<0) {
+            haveWGLChoosePixelFormatARB = wglExt.isExtensionAvailable("WGL_ARB_pixel_format")?1:0;
+        }
+        if(haveWGLARBMultisample<0) {
+            haveWGLARBMultisample = wglExt.isExtensionAvailable("WGL_ARB_multisample")?1:0;
+        }
+        if (0==haveWGLChoosePixelFormatARB) {
+            return null;
+        }
+
+        // Produce a list of GLCapabilities to give to the
+        // GLCapabilitiesChooser.
+        // Use wglGetPixelFormatAttribivARB instead of
+        // DescribePixelFormat to get higher-precision information
+        // about the pixel format (should make the GLCapabilities
+        // more precise as well...i.e., remove the
+        // "HardwareAccelerated" bit, which is basically
+        // meaningless, and put in whether it can render to a
+        // window, to a pbuffer, or to a pixmap)
+        GLCapabilities[] availableCaps = null;
+        int numFormats = 0;
+        int niattribs = 0;
+        int[] iattributes = new int  [2*MAX_ATTRIBS];
+        int[] iresults    = new int  [2*MAX_ATTRIBS];
+
+        iattributes[0] = WGLExt.WGL_NUMBER_PIXEL_FORMATS_ARB;
+        if (wglExt.wglGetPixelFormatAttribivARB(hdc, 0, 0, 1, iattributes, 0, iresults, 0)) {
+          numFormats = iresults[0];
+
+          if (DEBUG) {
+            System.err.println("wglGetPixelFormatAttribivARB reported WGL_NUMBER_PIXEL_FORMATS = " + numFormats);
+          }
+
+          if(pfdIDOnly>0 && pfdIDOnly>numFormats) {
+            throw new GLException("Invalid pixelformat ID " + pfdIDOnly + " (should be between 1 and " + numFormats + ")");
+          }
+
+          // Should we be filtering out the pixel formats which aren't
+          // applicable, as we are doing here?
+          // We don't have enough information in the GLCapabilities to
+          // represent those that aren't...
+          iattributes[niattribs++] = WGLExt.WGL_DRAW_TO_WINDOW_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_ACCELERATION_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_SUPPORT_OPENGL_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_DEPTH_BITS_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_STENCIL_BITS_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_DOUBLE_BUFFER_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_STEREO_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_PIXEL_TYPE_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_RED_BITS_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_GREEN_BITS_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_BLUE_BITS_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_ALPHA_BITS_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_ACCUM_RED_BITS_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_ACCUM_GREEN_BITS_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_ACCUM_BLUE_BITS_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_ACCUM_ALPHA_BITS_ARB;
+          if (1==haveWGLARBMultisample) {
+            iattributes[niattribs++] = WGLExt.WGL_SAMPLE_BUFFERS_ARB;
+            iattributes[niattribs++] = WGLExt.WGL_SAMPLES_ARB;
+          }
+
+          if(pfdIDOnly>0) {
+              availableCaps = new GLCapabilities[1];
+              if (!wglExt.wglGetPixelFormatAttribivARB(hdc, pfdIDOnly, 0, niattribs, iattributes, 0, iresults, 0)) {
+                  throw new GLException("Error getting pixel format attributes for pixel format " + pfdIDOnly + " of device context");
+              }
+              availableCaps[0] = AttribList2GLCapabilities(glp, iattributes, niattribs, iresults, 
+                                                           relaxed, onscreen, usePBuffer);
+          } else {
+              availableCaps = new GLCapabilities[numFormats];
+              for (int i = 0; i < numFormats; i++) {
+                if (!wglExt.wglGetPixelFormatAttribivARB(hdc, i+1, 0, niattribs, iattributes, 0, iresults, 0)) {
+                  throw new GLException("Error getting pixel format attributes for pixel format " + (i + 1) + " of device context");
+                }
+                availableCaps[i] = AttribList2GLCapabilities(glp, iattributes, niattribs, iresults, 
+                                                             relaxed, onscreen, usePBuffer);
+              }
+          }
+        } else {
+          long lastErr = WGL.GetLastError();
+          // Intel Extreme graphics fails with a zero error code
+          if (lastErr != 0) {
+            throw new GLException("Unable to enumerate pixel formats of window using wglGetPixelFormatAttribivARB: error code " + WGL.GetLastError());
+          }
+        }
+        return availableCaps;
+    }
+
+    public static boolean GLCapabilities2AttribList(GLCapabilities caps,
+                                                  int[] iattributes,
+                                                  WGLExt wglExt,
+                                                  boolean pbuffer,
+                                                  int[] floatMode) throws GLException {
+        if (!wglExt.isExtensionAvailable("WGL_ARB_pixel_format")) {
+          return false;
+        }
+
+        int niattribs = 0;
+
+        iattributes[niattribs++] = WGLExt.WGL_SUPPORT_OPENGL_ARB;
+        iattributes[niattribs++] = GL.GL_TRUE;
+        if (pbuffer) {
+          iattributes[niattribs++] = WGLExt.WGL_DRAW_TO_PBUFFER_ARB;
+          iattributes[niattribs++] = GL.GL_TRUE;
+        } else {
+          iattributes[niattribs++] = WGLExt.WGL_DRAW_TO_WINDOW_ARB;
+          iattributes[niattribs++] = GL.GL_TRUE;
+        }
+
+        iattributes[niattribs++] = WGLExt.WGL_DOUBLE_BUFFER_ARB;
+        if (caps.getDoubleBuffered()) {
+          iattributes[niattribs++] = GL.GL_TRUE;
+        } else {
+          iattributes[niattribs++] = GL.GL_FALSE;
+        }
+
+        iattributes[niattribs++] = WGLExt.WGL_STEREO_ARB;
+        if (caps.getStereo()) {
+          iattributes[niattribs++] = GL.GL_TRUE;
+        } else {
+          iattributes[niattribs++] = GL.GL_FALSE;
+        }
+        
+        iattributes[niattribs++] = WGLExt.WGL_DEPTH_BITS_ARB;
+        iattributes[niattribs++] = caps.getDepthBits();
+        iattributes[niattribs++] = WGLExt.WGL_RED_BITS_ARB;
+        iattributes[niattribs++] = caps.getRedBits();
+        iattributes[niattribs++] = WGLExt.WGL_GREEN_BITS_ARB;
+        iattributes[niattribs++] = caps.getGreenBits();
+        iattributes[niattribs++] = WGLExt.WGL_BLUE_BITS_ARB;
+        iattributes[niattribs++] = caps.getBlueBits();
+        iattributes[niattribs++] = WGLExt.WGL_ALPHA_BITS_ARB;
+        iattributes[niattribs++] = caps.getAlphaBits();
+        iattributes[niattribs++] = WGLExt.WGL_STENCIL_BITS_ARB;
+        iattributes[niattribs++] = caps.getStencilBits();
+        if (caps.getAccumRedBits()   > 0 ||
+            caps.getAccumGreenBits() > 0 ||
+            caps.getAccumBlueBits()  > 0 ||
+            caps.getAccumAlphaBits() > 0) {
+          iattributes[niattribs++] = WGLExt.WGL_ACCUM_BITS_ARB;
+          iattributes[niattribs++] = (caps.getAccumRedBits() +
+                                      caps.getAccumGreenBits() +
+                                      caps.getAccumBlueBits() +
+                                      caps.getAccumAlphaBits());
+          iattributes[niattribs++] = WGLExt.WGL_ACCUM_RED_BITS_ARB;
+          iattributes[niattribs++] = caps.getAccumRedBits();
+          iattributes[niattribs++] = WGLExt.WGL_ACCUM_GREEN_BITS_ARB;
+          iattributes[niattribs++] = caps.getAccumGreenBits();
+          iattributes[niattribs++] = WGLExt.WGL_ACCUM_BLUE_BITS_ARB;
+          iattributes[niattribs++] = caps.getAccumBlueBits();
+          iattributes[niattribs++] = WGLExt.WGL_ACCUM_ALPHA_BITS_ARB;
+          iattributes[niattribs++] = caps.getAccumAlphaBits();
+        }
+
+        if (wglExt.isExtensionAvailable("WGL_ARB_multisample")) {
+          if (caps.getSampleBuffers()) {
+            iattributes[niattribs++] = WGLExt.WGL_SAMPLE_BUFFERS_ARB;
+            iattributes[niattribs++] = GL.GL_TRUE;
+            iattributes[niattribs++] = WGLExt.WGL_SAMPLES_ARB;
+            iattributes[niattribs++] = caps.getNumSamples();
+          }
+        }
+
+        boolean rtt      = caps.getPbufferRenderToTexture();
+        boolean rect     = caps.getPbufferRenderToTextureRectangle();
+        boolean useFloat = caps.getPbufferFloatingPointBuffers();
+        boolean ati      = false;
+        if (pbuffer) {
+          // 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");
+          }
+
+          if (rect) {
+            if (!wglExt.isExtensionAvailable("GL_NV_texture_rectangle")) {
+              throw new GLException("Render-to-texture-rectangle requires GL_NV_texture_rectangle extension");
+            }
+          }
+
+          if (useFloat) {
+            if (!wglExt.isExtensionAvailable("WGL_ATI_pixel_format_float") &&
+                !wglExt.isExtensionAvailable("WGL_NV_float_buffer")) {
+              throw new GLException("Floating-point pbuffers not supported by this hardware");
+            }
+
+            // Prefer NVidia extension over ATI
+            if (wglExt.isExtensionAvailable("WGL_NV_float_buffer")) {
+              ati = false;
+              floatMode[0] = GLPbuffer.NV_FLOAT;
+            } else {
+              ati = true;
+              floatMode[0] = GLPbuffer.ATI_FLOAT;
+            }
+            if (DEBUG) {
+              System.err.println("Using " + (ati ? "ATI" : "NVidia") + " 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[niattribs++] = WGLExt.WGL_PIXEL_TYPE_ARB;
+              iattributes[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[niattribs++] = WGLExt.WGL_PIXEL_TYPE_ARB;
+              iattributes[niattribs++] = WGLExt.WGL_TYPE_RGBA_ARB;
+            }
+          }
+
+          if (useFloat && !ati) {
+            iattributes[niattribs++] = WGLExt.WGL_FLOAT_COMPONENTS_NV;
+            iattributes[niattribs++] = GL.GL_TRUE;
+          }
+
+          if (rtt) {
+            if (useFloat) {
+              assert(!ati);
+              if (!rect) {
+                throw new GLException("Render-to-floating-point-texture only supported on NVidia hardware with render-to-texture-rectangle");
+              }
+              iattributes[niattribs++] = WGLExt.WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGB_NV;
+              iattributes[niattribs++] = GL.GL_TRUE;
+            } else {
+              iattributes[niattribs++] = rect ? WGLExt.WGL_BIND_TO_TEXTURE_RECTANGLE_RGB_NV : WGLExt.WGL_BIND_TO_TEXTURE_RGB_ARB;
+              iattributes[niattribs++] = GL.GL_TRUE;
+            }
+          }
+        } else {
+          iattributes[niattribs++] = WGLExt.WGL_PIXEL_TYPE_ARB;
+          iattributes[niattribs++] = WGLExt.WGL_TYPE_RGBA_ARB;
+        }
+        iattributes[niattribs++] = 0;
+
+        return true;
+    }
+
+    public static final int WINDOW_BIT  = 1 << 0 ;
+    public static final int BITMAP_BIT  = 1 << 1 ;
+    public static final int PBUFFER_BIT = 1 << 2 ;
+
+    public static int WGLConfig2DrawableTypeBits(int[] iattribs,
+                                                 int niattribs,
+                                                 int[] iresults) {
+        int val = 0;
+
+        for (int i = 0; i < niattribs; i++) {
+          int attr = iattribs[i];
+          switch (attr) {
+            case WGLExt.WGL_DRAW_TO_WINDOW_ARB:
+                if(iresults[i] == GL.GL_TRUE) val |= WINDOW_BIT;
+                break;
+            case WGLExt.WGL_DRAW_TO_BITMAP_ARB:
+                if(iresults[i] == GL.GL_TRUE) val |= BITMAP_BIT;
+                break;
+            case WGLExt.WGL_DRAW_TO_PBUFFER_ARB:
+                if(iresults[i] == GL.GL_TRUE) val |= PBUFFER_BIT;
+                break;
+            }
+        }
+        return val;
+    }
+
+    public static boolean WGLConfigDrawableTypeVerify(int val, boolean onscreen, boolean usePBuffer) {
+        boolean res;
+
+        if ( onscreen ) {
+            res = ( 0 != (val & WINDOW_BIT) ) ;
+        } else {
+            res = ( 0 != (val & BITMAP_BIT) ) || usePBuffer ;
+        }
+        if ( usePBuffer ) {
+            res = res && ( 0 != (val & PBUFFER_BIT) ) ;
+        }
+
+        return res;
+    }
+    public static GLCapabilities AttribList2GLCapabilities(GLProfile glp, int[] iattribs,
+                                                         int niattribs,
+                                                         int[] iresults,
+                                                         boolean relaxed, boolean onscreen, boolean usePBuffer) {
+        GLCapabilities res = new GLCapabilities(glp);
+        int drawableTypeBits = WGLConfig2DrawableTypeBits(iattribs, niattribs, iresults);
+        if(WGLConfigDrawableTypeVerify(drawableTypeBits, onscreen, usePBuffer)) {
+            res.setOnscreen(onscreen);
+            res.setPBuffer(usePBuffer);
+        } else if(relaxed) {
+            res.setOnscreen( 0 != (drawableTypeBits & WINDOW_BIT) );
+            res.setPBuffer ( 0 != (drawableTypeBits & PBUFFER_BIT) );
+        } else {
+            throw new GLException("WGL DrawableType does not match !!!");
+        }
+
+        for (int i = 0; i < niattribs; i++) {
+          int attr = iattribs[i];
+          switch (attr) {
+            case WGLExt.WGL_DRAW_TO_WINDOW_ARB:
+            case WGLExt.WGL_DRAW_TO_BITMAP_ARB:
+            case WGLExt.WGL_DRAW_TO_PBUFFER_ARB:
+              break;
+
+            case WGLExt.WGL_ACCELERATION_ARB:
+              res.setHardwareAccelerated(iresults[i] == WGLExt.WGL_FULL_ACCELERATION_ARB);
+              break;
+
+            case WGLExt.WGL_SUPPORT_OPENGL_ARB:
+              if (iresults[i] != GL.GL_TRUE) {
+                return null;
+              }
+              break;
+
+            case WGLExt.WGL_DEPTH_BITS_ARB:
+              res.setDepthBits(iresults[i]);
+              break;
+
+            case WGLExt.WGL_STENCIL_BITS_ARB:
+              res.setStencilBits(iresults[i]);
+              break;
+
+            case WGLExt.WGL_DOUBLE_BUFFER_ARB:
+              res.setDoubleBuffered(iresults[i] == GL.GL_TRUE);
+              break;
+
+            case WGLExt.WGL_STEREO_ARB:
+              res.setStereo(iresults[i] == GL.GL_TRUE);
+              break;
+
+            case WGLExt.WGL_PIXEL_TYPE_ARB:
+              // Fail softly with unknown results here
+              if (iresults[i] == WGLExt.WGL_TYPE_RGBA_ARB||
+                  iresults[i] == WGLExt.WGL_TYPE_RGBA_FLOAT_ARB) {
+                res.setPbufferFloatingPointBuffers(true);
+              }
+              break;
+
+            case WGLExt.WGL_FLOAT_COMPONENTS_NV:
+              if (iresults[i] != 0) {
+                res.setPbufferFloatingPointBuffers(true);
+              }
+              break;
+
+            case WGLExt.WGL_RED_BITS_ARB:
+              res.setRedBits(iresults[i]);
+              break;
+              
+            case WGLExt.WGL_GREEN_BITS_ARB:
+              res.setGreenBits(iresults[i]);
+              break;
+
+            case WGLExt.WGL_BLUE_BITS_ARB:
+              res.setBlueBits(iresults[i]);
+              break;
+
+            case WGLExt.WGL_ALPHA_BITS_ARB:
+              res.setAlphaBits(iresults[i]);
+              break;
+
+            case WGLExt.WGL_ACCUM_RED_BITS_ARB:
+              res.setAccumRedBits(iresults[i]);
+              break;
+
+            case WGLExt.WGL_ACCUM_GREEN_BITS_ARB:
+              res.setAccumGreenBits(iresults[i]);
+              break;
+
+            case WGLExt.WGL_ACCUM_BLUE_BITS_ARB:
+              res.setAccumBlueBits(iresults[i]);
+              break;
+
+            case WGLExt.WGL_ACCUM_ALPHA_BITS_ARB:
+              res.setAccumAlphaBits(iresults[i]);
+              break;
+
+            case WGLExt.WGL_SAMPLE_BUFFERS_ARB:
+              res.setSampleBuffers(iresults[i] != 0);
+              break;
+
+            case WGLExt.WGL_SAMPLES_ARB:
+              res.setNumSamples(iresults[i]);
+              break;
+
+            default:
+              throw new GLException("Unknown pixel format attribute " + iattribs[i]);
+          }
+        }
+        return res;
+    }
+
+  // PIXELFORMAT
+
+    public static GLCapabilities PFD2GLCapabilities(GLProfile glp, PIXELFORMATDESCRIPTOR pfd, boolean onscreen, boolean usePBuffer) {
+        if ((pfd.getDwFlags() & WGL.PFD_SUPPORT_OPENGL) == 0) {
+          return null;
+        }
+        GLCapabilities res = new GLCapabilities(glp);
+        res.setRedBits       (pfd.getCRedBits());
+        res.setGreenBits     (pfd.getCGreenBits());
+        res.setBlueBits      (pfd.getCBlueBits());
+        res.setAlphaBits     (pfd.getCAlphaBits());
+        res.setAccumRedBits  (pfd.getCAccumRedBits());
+        res.setAccumGreenBits(pfd.getCAccumGreenBits());
+        res.setAccumBlueBits (pfd.getCAccumBlueBits());
+        res.setAccumAlphaBits(pfd.getCAccumAlphaBits());
+        res.setDepthBits     (pfd.getCDepthBits());
+        res.setStencilBits   (pfd.getCStencilBits());
+        res.setDoubleBuffered((pfd.getDwFlags() & WGL.PFD_DOUBLEBUFFER) != 0);
+        res.setStereo        ((pfd.getDwFlags() & WGL.PFD_STEREO) != 0);
+        res.setHardwareAccelerated( ((pfd.getDwFlags() & WGL.PFD_GENERIC_FORMAT) == 0) ||
+                                    ((pfd.getDwFlags() & WGL.PFD_GENERIC_ACCELERATED) != 0) );
+        res.setOnscreen      ( onscreen && ((pfd.getDwFlags() & WGL.PFD_DRAW_TO_WINDOW) != 0) );
+        res.setPBuffer       ( usePBuffer );
+        /* FIXME: Missing ??
+        if (GLXUtil.isMultisampleAvailable()) {
+          res.setSampleBuffers(glXGetFBConfig(display, fbcfg, GLX.GLX_SAMPLE_BUFFERS, tmp, 0) != 0);
+          res.setNumSamples   (glXGetFBConfig(display, fbcfg, GLX.GLX_SAMPLES,        tmp, 0));
+        }
+        res.setBackgroundOpaque(glXGetFBConfig(display, fbcfg, GLX.GLX_TRANSPARENT_TYPE, tmp, 0) != GLX.GLX_NONE);
+        try { 
+            res.setPbufferFloatingPointBuffers(glXGetFBConfig(display, fbcfg, GLXExt.GLX_FLOAT_COMPONENTS_NV, tmp, 0) != GL.GL_FALSE);
+        } catch (Exception e) {}
+        */
+        return res;
+  }
+
+  public static PIXELFORMATDESCRIPTOR GLCapabilities2PFD(GLCapabilities caps) {
+    int colorDepth = (caps.getRedBits() +
+                      caps.getGreenBits() +
+                      caps.getBlueBits());
+    if (colorDepth < 15) {
+      throw new GLException("Bit depths < 15 (i.e., non-true-color) not supported");
+    }
+    PIXELFORMATDESCRIPTOR pfd = createPixelFormatDescriptor();
+    int pfdFlags = (WGL.PFD_SUPPORT_OPENGL |
+                    WGL.PFD_GENERIC_ACCELERATED);
+    if (caps.getDoubleBuffered()) {
+      pfdFlags |= WGL.PFD_DOUBLEBUFFER;
+    }
+    if (caps.isOnscreen()) {
+      pfdFlags |= WGL.PFD_DRAW_TO_WINDOW;
+    } else {
+      pfdFlags |= WGL.PFD_DRAW_TO_BITMAP;
+    }
+    if (caps.getStereo()) {
+      pfdFlags |= WGL.PFD_STEREO;
+    }
+    pfd.setDwFlags(pfdFlags);
+    pfd.setIPixelType((byte) WGL.PFD_TYPE_RGBA);
+    pfd.setCColorBits((byte) colorDepth);
+    pfd.setCRedBits  ((byte) caps.getRedBits());
+    pfd.setCGreenBits((byte) caps.getGreenBits());
+    pfd.setCBlueBits ((byte) caps.getBlueBits());
+    pfd.setCAlphaBits((byte) caps.getAlphaBits());
+    int accumDepth = (caps.getAccumRedBits() +
+                      caps.getAccumGreenBits() +
+                      caps.getAccumBlueBits());
+    pfd.setCAccumBits     ((byte) accumDepth);
+    pfd.setCAccumRedBits  ((byte) caps.getAccumRedBits());
+    pfd.setCAccumGreenBits((byte) caps.getAccumGreenBits());
+    pfd.setCAccumBlueBits ((byte) caps.getAccumBlueBits());
+    pfd.setCAccumAlphaBits((byte) caps.getAccumAlphaBits());
+    pfd.setCDepthBits((byte) caps.getDepthBits());
+    pfd.setCStencilBits((byte) caps.getStencilBits());
+    pfd.setILayerType((byte) WGL.PFD_MAIN_PLANE);
+
+    /* FIXME: Missing: 
+      caps.getSampleBuffers()
+      caps.getNumSamples   ()
+    }
+    caps.getBackgroundOpaque()
+    try { 
+        caps.getPbufferFloatingPointBuffers()
+    } catch (Exception e) {}
+    */
+    return pfd;
+  }
+
+  public static PIXELFORMATDESCRIPTOR createPixelFormatDescriptor() {
+    PIXELFORMATDESCRIPTOR pfd = PIXELFORMATDESCRIPTOR.create();
+    pfd.setNSize((short) pfd.size());
+    pfd.setNVersion((short) 1);
+    return pfd;
+  }
+
+  public String toString() {
+    return "WindowsWGLGraphicsConfiguration["+getScreen()+", pfdID " + pixelfmtID + ", wglChoosen "+choosenByWGLPixelFormat+
+                                            ",\n\trequested " + getRequestedCapabilities() +
+                                            ",\n\tchosen    " + getChosenCapabilities() +
+                                            "]";
+  }
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLGraphicsConfigurationFactory.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLGraphicsConfigurationFactory.java
new file mode 100644
index 000000000..06590a913
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/WindowsWGLGraphicsConfigurationFactory.java
@@ -0,0 +1,319 @@
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.windows.wgl;
+
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.windows.*;
+import com.sun.nativewindow.impl.*;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+
+/** Subclass of GraphicsConfigurationFactory used when non-AWT tookits
+    are used on Windows platforms. Toolkits will likely need to delegate
+    to this one to change the accepted and returned types of the
+    GraphicsDevice and GraphicsConfiguration abstractions. */
+
+public class WindowsWGLGraphicsConfigurationFactory extends GraphicsConfigurationFactory {
+    protected static final boolean DEBUG = com.jogamp.opengl.impl.Debug.debug("GraphicsConfiguration");
+
+    public WindowsWGLGraphicsConfigurationFactory() {
+        GraphicsConfigurationFactory.registerFactory(javax.media.nativewindow.windows.WindowsGraphicsDevice.class, this);
+    }
+
+    public AbstractGraphicsConfiguration chooseGraphicsConfiguration(Capabilities capabilities,
+                                                                     CapabilitiesChooser chooser,
+                                                                     AbstractGraphicsScreen absScreen) {
+        GLCapabilities caps = (GLCapabilities)capabilities;
+        return chooseGraphicsConfigurationStatic(caps, chooser, absScreen);
+    }
+
+    protected static WindowsWGLGraphicsConfiguration createDefaultGraphicsConfiguration(AbstractGraphicsScreen absScreen, boolean onscreen, boolean usePBuffer) {
+        GLCapabilities caps = new GLCapabilities(null);
+        caps.setDoubleBuffered(onscreen); // FIXME
+        caps.setOnscreen  (onscreen);
+        caps.setPBuffer   (usePBuffer);
+
+        GLCapabilities caps2 = (GLCapabilities) caps.clone();
+        if(!caps2.isOnscreen()) {
+            // OFFSCREEN !DOUBLE_BUFFER
+            caps2.setDoubleBuffered(false);
+        }
+
+        if(null==absScreen) {
+            absScreen = DefaultGraphicsScreen.createScreenDevice(0);
+        }
+        return new WindowsWGLGraphicsConfiguration(absScreen, caps2, caps, WindowsWGLGraphicsConfiguration.GLCapabilities2PFD(caps2), -1, null);
+    }
+
+    protected static WindowsWGLGraphicsConfiguration chooseGraphicsConfigurationStatic(GLCapabilities caps,
+                                                                                       CapabilitiesChooser chooser,
+                                                                                       AbstractGraphicsScreen absScreen) {
+        if(null==absScreen) {
+            absScreen = DefaultGraphicsScreen.createScreenDevice(0);
+        }
+        GLCapabilities caps2 = (GLCapabilities) caps.clone();
+        if(!caps2.isOnscreen()) {
+            // OFFSCREEN !DOUBLE_BUFFER
+            caps2.setDoubleBuffered(false);
+        }
+        return new WindowsWGLGraphicsConfiguration(absScreen, caps2, caps, WindowsWGLGraphicsConfiguration.GLCapabilities2PFD(caps2), -1, 
+                                                   (GLCapabilitiesChooser)chooser);
+    }
+
+    protected static void updateGraphicsConfiguration(CapabilitiesChooser chooser,
+                                                      GLDrawableFactory factory, NativeWindow nativeWindow) {
+        if (nativeWindow == null) {
+            throw new IllegalArgumentException("NativeWindow is null");
+        }
+
+        if (chooser != null &&
+            !(chooser instanceof GLCapabilitiesChooser)) {
+            throw new IllegalArgumentException("This NativeWindowFactory accepts only GLCapabilitiesChooser objects");
+        }
+
+        boolean choosenBywGLPixelFormat = false;
+        WindowsWGLGraphicsConfiguration config = (WindowsWGLGraphicsConfiguration) nativeWindow.getGraphicsConfiguration().getNativeGraphicsConfiguration();
+        GLCapabilities capabilities = (GLCapabilities) config.getRequestedCapabilities();
+        boolean onscreen = capabilities.isOnscreen();
+        boolean usePBuffer = capabilities.isPBuffer();
+        GLProfile glProfile = capabilities.getGLProfile();
+        long hdc = nativeWindow.getSurfaceHandle();
+
+        if (DEBUG) {
+          Exception ex = new Exception("WindowsWGLGraphicsConfigurationFactory got HDC "+toHexString(hdc));
+          ex.printStackTrace();
+          System.err.println("WindowsWGLGraphicsConfigurationFactory got NW    "+nativeWindow);
+        }
+
+        PIXELFORMATDESCRIPTOR pfd = null;
+        int pixelFormat = -1; // 1-based pixel format
+        boolean pixelFormatSet = false;
+        GLCapabilities chosenCaps = null;
+
+        if (onscreen) {
+          if ((pixelFormat = WGL.GetPixelFormat(hdc)) != 0) {
+            // Pixelformat already set by either 
+            //  - a previous updateGraphicsConfiguration() call on the same HDC,
+            //  - the graphics driver, copying the HDC's pixelformat to the new one,
+            //  - or the Java2D/OpenGL pipeline's configuration
+            if (DEBUG) {
+              System.err.println("!!!! NOTE: pixel format already chosen for HDC: " + toHexString(hdc)+
+                                 ", pixelformat "+pixelFormat);
+            }
+            pixelFormatSet = true;
+          }
+
+          GLCapabilities[] availableCaps = null;
+          int numFormats = 0;
+          pfd = WindowsWGLGraphicsConfiguration.createPixelFormatDescriptor();
+          // Produce a recommended pixel format selection for the GLCapabilitiesChooser.
+          // Use wglChoosePixelFormatARB if user requested multisampling and if we have it available
+          WindowsWGLDrawable dummyDrawable = null;
+          GLContextImpl     dummyContext  = null;
+          WGLExt            dummyWGLExt   = null;
+          if (capabilities.getSampleBuffers()) {
+              dummyDrawable = new WindowsDummyWGLDrawable(factory);
+              dummyContext  = (GLContextImpl) dummyDrawable.createContext(null);
+              if (dummyContext != null) {
+                dummyContext.makeCurrent();
+                dummyWGLExt = (WGLExt) dummyContext.getPlatformGLExtensions();
+              }
+          } else if (DEBUG) {
+              System.err.println(getThreadName() + ": Not using WGL_ARB_pixel_format, because multisampling not requested");
+          }
+          int recommendedPixelFormat = pixelFormat; // 1-based pixel format
+          boolean haveWGLChoosePixelFormatARB = false;
+          boolean gotAvailableCaps = false;
+          if (dummyWGLExt != null) {
+            try {
+              haveWGLChoosePixelFormatARB = dummyWGLExt.isExtensionAvailable("WGL_ARB_pixel_format");
+              if (haveWGLChoosePixelFormatARB) {
+                if(pixelFormat<=0) {
+                  int[]   iattributes = new int  [2*WindowsWGLGraphicsConfiguration.MAX_ATTRIBS];
+                  float[] fattributes = new float[1];
+
+                  if(WindowsWGLGraphicsConfiguration.GLCapabilities2AttribList(capabilities,
+                                                                               iattributes,
+                                                                               dummyWGLExt,
+                                                                               false,
+                                                                               null)) {
+                    int[] pformats = new int[WindowsWGLGraphicsConfiguration.MAX_PFORMATS];
+                    int[] numFormatsTmp = new int[1];
+                    if (dummyWGLExt.wglChoosePixelFormatARB(hdc,
+                                                         iattributes, 0,
+                                                         fattributes, 0,
+                                                         WindowsWGLGraphicsConfiguration.MAX_PFORMATS,
+                                                         pformats, 0,
+                                                         numFormatsTmp, 0)) {
+                      numFormats = numFormatsTmp[0];
+                      if (recommendedPixelFormat<=0 && numFormats > 0) {
+                        recommendedPixelFormat = pformats[0];
+                        if (DEBUG) {
+                          System.err.println(getThreadName() + ": Used wglChoosePixelFormatARB to recommend pixel format " + recommendedPixelFormat);
+                        }
+                      }
+                    } else {
+                      if (DEBUG) {
+                        System.err.println(getThreadName() + ": wglChoosePixelFormatARB failed: " + WGL.GetLastError() );
+                        Thread.dumpStack();
+                      }
+                    }
+                    if (DEBUG) {
+                      if (recommendedPixelFormat <= 0) {
+                        System.err.print(getThreadName() + ": wglChoosePixelFormatARB didn't recommend a pixel format: "+WGL.GetLastError());
+                        if (capabilities.getSampleBuffers()) {
+                          System.err.print(" for multisampled GLCapabilities");
+                        }
+                        System.err.println();
+                      }
+                    }
+                  }
+                }
+
+                availableCaps = WindowsWGLGraphicsConfiguration.HDC2GLCapabilities(dummyWGLExt, hdc, -1, glProfile, pixelFormatSet, onscreen, usePBuffer);
+                gotAvailableCaps = null!=availableCaps ;
+                choosenBywGLPixelFormat = gotAvailableCaps ;
+              } else if (DEBUG) {
+                System.err.println(getThreadName() + ": wglChoosePixelFormatARB not available");
+              }
+            } finally {
+              dummyContext.release();
+              dummyContext.destroy();
+              dummyDrawable.destroy();
+            }
+          }
+
+          if (!gotAvailableCaps) {
+            if (DEBUG) {
+              System.err.println(getThreadName() + ": Using ChoosePixelFormat ... (LastError: "+WGL.GetLastError()+")");
+            }
+            pfd = WindowsWGLGraphicsConfiguration.GLCapabilities2PFD(capabilities);
+            recommendedPixelFormat = WGL.ChoosePixelFormat(hdc, pfd);
+            if (DEBUG) {
+              System.err.println(getThreadName() + ": ChoosePixelFormat(HDC "+toHexString(hdc)+") = " + recommendedPixelFormat + " (LastError: "+WGL.GetLastError()+")");
+              System.err.println(getThreadName() + ": Used " + capabilities);
+            }
+
+            numFormats = WGL.DescribePixelFormat(hdc, 1, 0, null);
+            if (numFormats == 0) {
+              throw new GLException("Unable to enumerate pixel formats of window " +
+                                    toHexString(hdc) + " for GLCapabilitiesChooser (LastError: "+WGL.GetLastError()+")");
+            }
+            availableCaps = new GLCapabilities[numFormats];
+            for (int i = 0; i < numFormats; i++) {
+              if (WGL.DescribePixelFormat(hdc, 1 + i, pfd.size(), pfd) == 0) {
+                throw new GLException("Error describing pixel format " + (1 + i) + " of device context");
+              }
+              availableCaps[i] = WindowsWGLGraphicsConfiguration.PFD2GLCapabilities(glProfile, pfd, onscreen, usePBuffer);
+            }
+          }
+
+          // NOTE: officially, should make a copy of all of these
+          // GLCapabilities to avoid mutation by the end user during the
+          // chooseCapabilities call, but for the time being, assume they
+          // won't be changed
+
+          if(pixelFormat<=0) {
+              if(null!=chooser) {
+                  // Supply information to chooser
+                  try {
+                    pixelFormat = chooser.chooseCapabilities(capabilities, availableCaps, recommendedPixelFormat) + 1;
+                  } catch (NativeWindowException e) {
+                    if(DEBUG) {
+                          e.printStackTrace();
+                    }
+                    pixelFormat = -1;
+                  }
+              } else {
+                  pixelFormat = recommendedPixelFormat;
+              }
+              if (pixelFormat <= 0) {
+                  // keep on going ..
+                  if(DEBUG) {
+                      System.err.println("WindowsWGLGraphicsConfigurationFactory.updateGraphicsConfiguration .. unable to choose config, using first");
+                  }
+                  pixelFormat = 1; // default ..
+              } else if ( pixelFormat > numFormats ) {
+                throw new GLException("Invalid result " + pixelFormat +
+                                      " from GLCapabilitiesChooser (should be between 1 and " +
+                                      numFormats + ")");
+              }
+          }
+          chosenCaps = availableCaps[pixelFormat-1];
+          if (DEBUG) {
+            System.err.println(getThreadName() + ": Chosen pixel format (" + pixelFormat + "):");
+            System.err.println(chosenCaps);
+          }
+          if (WGL.DescribePixelFormat(hdc, pixelFormat, pfd.size(), pfd) == 0) {
+            throw new GLException("Error re-describing the chosen pixel format: " + WGL.GetLastError());
+          }
+        } else {
+          // For now, use ChoosePixelFormat for offscreen surfaces until
+          // we figure out how to properly choose an offscreen-
+          // compatible pixel format
+          pfd = WindowsWGLGraphicsConfiguration.GLCapabilities2PFD(capabilities);
+          pixelFormat = WGL.ChoosePixelFormat(hdc, pfd);
+        }
+        if(!pixelFormatSet) {
+            if (!WGL.SetPixelFormat(hdc, pixelFormat, pfd)) {
+              long lastError = WGL.GetLastError();
+              if (DEBUG) {
+                System.err.println(getThreadName() + ": SetPixelFormat failed: current context = " + WGL.wglGetCurrentContext() +
+                                   ", current DC = " + WGL.wglGetCurrentDC());
+                System.err.println(getThreadName() + ": GetPixelFormat(hdc " + toHexString(hdc) + ") returns " + WGL.GetPixelFormat(hdc));
+              }
+              throw new GLException("Unable to set pixel format " + pixelFormat + " for device context " + toHexString(hdc) + ": error code " + lastError);
+            }
+            pixelFormatSet=true;
+        }
+        // Reuse the previously-constructed GLCapabilities because it
+        // turns out that using DescribePixelFormat on some pixel formats
+        // (which, for example, support full-scene antialiasing) for some
+        // reason return that they are not OpenGL-capable
+        if (chosenCaps != null) {
+          capabilities = chosenCaps;
+        } else {
+          capabilities = WindowsWGLGraphicsConfiguration.PFD2GLCapabilities(glProfile, pfd, onscreen, usePBuffer);
+        }
+        config.setCapsPFD(capabilities, pfd, pixelFormat, choosenBywGLPixelFormat);
+    }
+
+  protected static String getThreadName() {
+    return Thread.currentThread().getName();
+  }
+  public static String toHexString(long hex) {
+      return "0x" + Long.toHexString(hex);
+  }
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/awt/WindowsAWTWGLGraphicsConfigurationFactory.java b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/awt/WindowsAWTWGLGraphicsConfigurationFactory.java
new file mode 100644
index 000000000..4458fb1ac
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/windows/wgl/awt/WindowsAWTWGLGraphicsConfigurationFactory.java
@@ -0,0 +1,114 @@
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.windows.wgl.awt;
+
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsDevice;
+import java.awt.GraphicsEnvironment;
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.windows.*;
+import javax.media.nativewindow.awt.*;
+import javax.media.opengl.*;
+import javax.media.opengl.awt.*;
+
+import com.jogamp.opengl.impl.*;
+import com.jogamp.opengl.impl.windows.wgl.*;
+import com.sun.nativewindow.impl.jawt.*;
+import com.sun.nativewindow.impl.jawt.windows.*;
+
+public class WindowsAWTWGLGraphicsConfigurationFactory extends GraphicsConfigurationFactory {
+    protected static final boolean DEBUG = com.jogamp.opengl.impl.Debug.debug("GraphicsConfiguration");
+
+    public WindowsAWTWGLGraphicsConfigurationFactory() {
+        GraphicsConfigurationFactory.registerFactory(javax.media.nativewindow.awt.AWTGraphicsDevice.class, this);
+    }
+
+    public AbstractGraphicsConfiguration chooseGraphicsConfiguration(Capabilities capabilities,
+                                                                     CapabilitiesChooser chooser,
+                                                                     AbstractGraphicsScreen absScreen) {
+        GraphicsDevice device = null;
+        if (absScreen != null &&
+            !(absScreen instanceof AWTGraphicsScreen)) {
+            throw new IllegalArgumentException("This GraphicsConfigurationFactory accepts only AWTGraphicsScreen objects");
+        }
+
+        if(null==absScreen) {
+            absScreen = AWTGraphicsScreen.createScreenDevice(-1);
+        }
+        AWTGraphicsScreen awtScreen = (AWTGraphicsScreen) absScreen;
+        device = ((AWTGraphicsDevice)awtScreen.getDevice()).getGraphicsDevice();
+
+        if (capabilities != null &&
+            !(capabilities instanceof GLCapabilities)) {
+            throw new IllegalArgumentException("This GraphicsConfigurationFactory accepts only GLCapabilities objects");
+        }
+
+        if (chooser != null &&
+            !(chooser instanceof GLCapabilitiesChooser)) {
+            throw new IllegalArgumentException("This GraphicsConfigurationFactory accepts only GLCapabilitiesChooser objects");
+        }
+
+        if(DEBUG) {
+            System.err.println("WindowsAWTWGLGraphicsConfigurationFactory: got "+absScreen);
+        }
+        GraphicsConfiguration gc = device.getDefaultConfiguration();
+        AWTGraphicsConfiguration.setupCapabilitiesRGBABits(capabilities, gc);
+        if(DEBUG) {
+            System.err.println("AWT Colormodel compatible: "+capabilities);
+        }
+
+        long displayHandle = 0;
+
+        WindowsGraphicsDevice winDevice = new WindowsGraphicsDevice();
+        DefaultGraphicsScreen winScreen = new DefaultGraphicsScreen(winDevice, awtScreen.getIndex());
+        if(DEBUG) {
+            System.err.println("WindowsAWTWGLGraphicsConfigurationFactory: made "+winScreen);
+        }
+
+        WindowsWGLGraphicsConfiguration winConfig = (WindowsWGLGraphicsConfiguration)
+            GraphicsConfigurationFactory.getFactory(winDevice).chooseGraphicsConfiguration(capabilities,
+                                                                                           chooser,
+                                                                                           winScreen);
+
+        if (winConfig == null) {
+            throw new GLException("Unable to choose a GraphicsConfiguration: "+capabilities+",\n\t"+chooser+"\n\t"+winScreen);
+        }
+
+        if(DEBUG) {
+            System.err.println("WindowsAWTWGLGraphicsConfigurationFactory: chosen "+winConfig);
+        }
+
+        // FIXME: we have nothing to match .. so choose the default
+        return new AWTGraphicsConfiguration(awtScreen, winConfig.getChosenCapabilities(), winConfig.getRequestedCapabilities(), gc, winConfig);
+    }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/GLXUtil.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/GLXUtil.java
new file mode 100644
index 000000000..cbd98014a
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/GLXUtil.java
@@ -0,0 +1,66 @@
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.x11.glx;
+
+import javax.media.opengl.*;
+
+import com.jogamp.opengl.impl.*;
+import javax.media.nativewindow.NativeWindowFactory;
+import com.sun.nativewindow.impl.x11.*;
+
+public class GLXUtil {
+    public static boolean isMultisampleAvailable(long display) {
+        try {
+            X11Lib.XLockDisplay(display);
+            String exts = GLX.glXGetClientString(display, GLX.GLX_EXTENSIONS);
+            if (exts != null) {
+                return (exts.indexOf("GLX_ARB_multisample") >= 0);
+            }
+            return false;
+        } finally {
+            X11Lib.XUnlockDisplay(display);
+        }
+    }
+
+    /** Workaround for apparent issue with ATI's proprietary drivers
+        where direct contexts still send GLX tokens for GL calls */
+    public static boolean isVendorATI(long display) {
+        try {
+            X11Lib.XLockDisplay(display);
+            String vendor = GLX.glXGetClientString(display, GLX.GLX_VENDOR);
+            return vendor != null && vendor.startsWith("ATI") ;
+        } finally {
+            X11Lib.XUnlockDisplay(display);
+        }
+    }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11ExternalGLXContext.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11ExternalGLXContext.java
new file mode 100755
index 000000000..b94dac1da
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11ExternalGLXContext.java
@@ -0,0 +1,154 @@
+/*
+ * 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 com.jogamp.opengl.impl.x11.glx;
+
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.x11.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.NullWindow;
+import com.sun.nativewindow.impl.x11.*;
+
+public class X11ExternalGLXContext extends X11GLXContext {
+  private boolean firstMakeCurrent = true;
+  private boolean created = true;
+  private GLContext lastContext;
+
+  private X11ExternalGLXContext(Drawable drawable, long context) {
+    super(drawable, null);
+    this.context = context;
+    GLContextShareSet.contextCreated(this);
+    setGLFunctionAvailability(false);
+    getGLStateTracker().setEnabled(false); // external context usage can't track state in Java
+  }
+
+  protected static X11ExternalGLXContext create(GLDrawableFactory factory, GLProfile glp) {
+    ((GLDrawableFactoryImpl)factory).lockToolkit();
+    try {
+        long context = GLX.glXGetCurrentContext();
+        if (context == 0) {
+          throw new GLException("Error: current context null");
+        }
+        long display = GLX.glXGetCurrentDisplay();
+        if (display == 0) {
+          throw new GLException("Error: current display null");
+        }
+        long drawable = GLX.glXGetCurrentDrawable();
+        if (drawable == 0) {
+          throw new GLException("Error: attempted to make an external GLDrawable without a drawable/context current");
+        }
+        int[] val = new int[1];
+        GLX.glXQueryContext(display, context, GLX.GLX_SCREEN, val, 0);
+        X11GraphicsScreen x11Screen = (X11GraphicsScreen) X11GraphicsScreen.createScreenDevice(display, val[0]);
+
+        GLX.glXQueryContext(display, context, GLX.GLX_FBCONFIG_ID, val, 0);
+        X11GLXGraphicsConfiguration cfg = X11GLXGraphicsConfiguration.create(glp, x11Screen, val[0]);
+
+        NullWindow nw = new NullWindow(cfg);
+        nw.setSurfaceHandle(drawable);
+        return new X11ExternalGLXContext(new Drawable(factory, nw), context);
+    } finally {
+        ((GLDrawableFactoryImpl)factory).unlockToolkit();
+    }
+  }
+
+  protected void create() {
+  }
+
+  public int makeCurrent() throws GLException {
+    // Save last context if necessary to allow external GLContexts to
+    // talk to other GLContexts created by this library
+    GLContext cur = getCurrent();
+    if (cur != null && cur != this) {
+      lastContext = cur;
+      setCurrent(null);
+    }
+    return super.makeCurrent();
+  }  
+
+  public void release() throws GLException {
+    super.release();
+    setCurrent(lastContext);
+    lastContext = null;
+  }
+
+  protected int makeCurrentImpl() throws GLException {
+    if (firstMakeCurrent) {
+      firstMakeCurrent = false;
+      return CONTEXT_CURRENT_NEW;
+    }
+    return CONTEXT_CURRENT;
+  }
+
+  protected void releaseImpl() throws GLException {
+  }
+
+  protected void destroyImpl() throws GLException {
+    created = false;
+    GLContextShareSet.contextDestroyed(this);
+  }
+
+  public boolean isCreated() {
+    return created;
+  }
+
+  // Need to provide the display connection to extension querying APIs
+  static class Drawable extends X11GLXDrawable {
+    Drawable(GLDrawableFactory factory, NativeWindow comp) {
+      super(factory, comp, true);
+    }
+
+    public GLContext createContext(GLContext shareWith) {
+      throw new GLException("Should not call this");
+    }
+
+    public int getWidth() {
+      throw new GLException("Should not call this");
+    }
+
+    public int getHeight() {
+      throw new GLException("Should not call this");
+    }
+
+    public void setSize(int width, int height) {
+      throw new GLException("Should not call this");
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11ExternalGLXDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11ExternalGLXDrawable.java
new file mode 100755
index 000000000..261b1b370
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11ExternalGLXDrawable.java
@@ -0,0 +1,134 @@
+/*
+ * 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 com.jogamp.opengl.impl.x11.glx;
+
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.x11.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.NullWindow;
+import com.sun.nativewindow.impl.x11.*;
+
+import com.jogamp.gluegen.runtime.PointerBuffer;
+
+public class X11ExternalGLXDrawable extends X11GLXDrawable {
+  private int fbConfigID;
+  private int renderType;
+
+  private X11ExternalGLXDrawable(GLDrawableFactory factory, NativeWindow component, int renderType) {
+    super(factory, component, true);
+
+    this.renderType = renderType;
+
+    // Need GLXFBConfig ID in order to properly create new contexts
+    // on this drawable
+    X11GLXGraphicsConfiguration cfg = (X11GLXGraphicsConfiguration) component.getGraphicsConfiguration();
+    fbConfigID = cfg.getFBConfigID();
+  }
+
+  protected static X11ExternalGLXDrawable create(GLDrawableFactory factory, GLProfile glp) {
+    ((GLDrawableFactoryImpl)factory).lockToolkit();
+    try {
+        long context = GLX.glXGetCurrentContext();
+        if (context == 0) {
+          throw new GLException("Error: current context null");
+        }
+        long display = GLX.glXGetCurrentDisplay();
+        if (display == 0) {
+          throw new GLException("Error: current display null");
+        }
+        long drawable = GLX.glXGetCurrentDrawable();
+        if (drawable == 0) {
+          throw new GLException("Error: attempted to make an external GLDrawable without a drawable current");
+        }
+        int[] val = new int[1];
+        GLX.glXQueryContext(display, context, GLX.GLX_SCREEN, val, 0);
+        X11GraphicsScreen x11Screen = (X11GraphicsScreen) X11GraphicsScreen.createScreenDevice(display, val[0]);
+
+        GLX.glXQueryContext(display, context, GLX.GLX_FBCONFIG_ID, val, 0);
+        X11GLXGraphicsConfiguration cfg = X11GLXGraphicsConfiguration.create(glp, x11Screen, val[0]);
+
+        int w, h;
+        GLX.glXQueryDrawable(display, drawable, GLX.GLX_WIDTH, val, 0);
+        w=val[0];
+        GLX.glXQueryDrawable(display, drawable, GLX.GLX_HEIGHT, val, 0);
+        h=val[0];
+
+        GLX.glXQueryContext(display, context, GLX.GLX_RENDER_TYPE, val, 0);
+        if ((val[0] & GLX.GLX_RGBA_TYPE) == 0) {
+          if (DEBUG) {
+            System.err.println("X11ExternalGLXDrawable: WARNING: forcing GLX_RGBA_TYPE for newly created contexts (current 0x"+Integer.toHexString(val[0])+")");
+          }
+        }
+        NullWindow nw = new NullWindow(cfg);
+        nw.setSurfaceHandle(drawable);
+        nw.setSize(w, h);
+        return new X11ExternalGLXDrawable(factory, nw, GLX.GLX_RGBA_TYPE);
+    } finally {
+        ((GLDrawableFactoryImpl)factory).unlockToolkit();
+    }
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    return new Context(this, shareWith);
+  }
+
+  public void setSize(int newWidth, int newHeight) {
+    throw new GLException("Should not call this");
+  }
+
+  public int getWidth() {
+    return getNativeWindow().getWidth();
+  }  
+
+  public int getHeight() {
+    return getNativeWindow().getHeight();
+  }  
+
+  class Context extends X11GLXContext {
+    Context(X11GLXDrawable drawable, GLContext shareWith) {
+      super(drawable, shareWith);
+    }
+
+    protected void create() {
+      createContext(true);
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXContext.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXContext.java
new file mode 100644
index 000000000..629bcb0b9
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXContext.java
@@ -0,0 +1,555 @@
+/*
+ * 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 com.jogamp.opengl.impl.x11.glx;
+
+import java.nio.*;
+import java.util.*;
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.x11.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.opengl.impl.x11.glx.*;
+import com.sun.nativewindow.impl.x11.*;
+import com.jogamp.gluegen.runtime.ProcAddressTable;
+
+public abstract class X11GLXContext extends GLContextImpl {
+  protected long context;
+  private boolean glXQueryExtensionsStringInitialized;
+  private boolean glXQueryExtensionsStringAvailable;
+  private static final Map/*<String, String>*/ functionNameMap;
+  private GLXExt glXExt;
+  // Table that holds the addresses of the native C-language entry points for
+  // GLX extension functions.
+  private GLXExtProcAddressTable glXExtProcAddressTable;
+
+  static {
+    functionNameMap = new HashMap();
+    functionNameMap.put("glAllocateMemoryNV", "glXAllocateMemoryNV");
+    functionNameMap.put("glFreeMemoryNV", "glXFreeMemoryNV");
+  }
+
+  public X11GLXContext(GLDrawableImpl drawable, GLDrawableImpl drawableRead,
+                      GLContext shareWith) {
+    super(drawable, drawableRead, shareWith);
+  }
+
+  public X11GLXContext(GLDrawableImpl drawable,
+                      GLContext shareWith) {
+    this(drawable, null, shareWith);
+  }
+  
+  public final ProcAddressTable getPlatformExtProcAddressTable() {
+    return getGLXExtProcAddressTable();
+  }
+
+  public final GLXExtProcAddressTable getGLXExtProcAddressTable() {
+    return glXExtProcAddressTable;
+  }
+
+  public Object getPlatformGLExtensions() {
+    return getGLXExt();
+  }
+
+  public GLXExt getGLXExt() {
+    if (glXExt == null) {
+      glXExt = new GLXExtImpl(this);
+    }
+    return glXExt;
+  }
+
+  protected String mapToRealGLFunctionName(String glFunctionName) {
+    String lookup = (String) functionNameMap.get(glFunctionName);
+    if (lookup != null) {
+      return lookup;
+    }
+    return glFunctionName;
+  }
+
+  protected String mapToRealGLExtensionName(String glExtensionName) {
+    return glExtensionName;
+  }
+
+  /** Helper routine which usually just turns around and calls
+   * createContext (except for pbuffers, which use a different context
+   * creation mechanism). Should only be called by {@link
+   * makeCurrentImpl()}.
+   */
+  protected abstract void create();
+
+  /**
+   * Creates and initializes an appropriate OpenGL context. Should only be
+   * called by {@link create()}.
+   * Note: The direct parameter may be overwritten by the direct state of a shared context.
+   */
+  protected void createContext(boolean direct) {
+    X11GLXGraphicsConfiguration config = (X11GLXGraphicsConfiguration)drawable.getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+    if(DEBUG) {
+          System.err.println("X11GLXContext.createContext got "+config);
+    }
+    long display = config.getScreen().getDevice().getHandle();
+
+    X11GLXContext other = (X11GLXContext) GLContextShareSet.getShareContext(this);
+    long share = 0;
+    if (other != null) {
+      share = other.getContext();
+      if (share == 0) {
+        throw new GLException("GLContextShareSet returned an invalid OpenGL context");
+      }
+      direct = GLX.glXIsDirect(display, share);
+    }
+
+    GLCapabilities glCaps = (GLCapabilities) config.getChosenCapabilities();
+    isVendorATI = GLXUtil.isVendorATI(display);
+
+    if(config.getFBConfigID()<0) {
+        // not able to use FBConfig
+        if(glCaps.getGLProfile().isGL3()) {
+          throw new GLException("Unable to create OpenGL >= 3.1 context");
+        }
+        context = GLX.glXCreateContext(display, config.getXVisualInfo(), share, direct);
+        if (context == 0) {
+          throw new GLException("Unable to create OpenGL context");
+        }
+        if (!GLX.glXMakeContextCurrent(display,
+                                       drawable.getNativeWindow().getSurfaceHandle(), 
+                                       drawableRead.getNativeWindow().getSurfaceHandle(), 
+                                       context)) {
+          throw new GLException("Error making temp context (old2) current: display 0x"+Long.toHexString(display)+", context 0x"+Long.toHexString(context)+", drawable "+drawable);
+        }
+        setGLFunctionAvailability(true);
+        if(DEBUG) {
+              System.err.println("X11GLXContext.createContext done (old2 ctx) 0x"+Long.toHexString(context));
+        }
+
+    } else {
+
+        // To use GLX_ARB_create_context, we have to make a temp context current,
+        // so we are able to use GetProcAddress
+        long temp_context = GLX.glXCreateNewContext(display, config.getFBConfig(), GLX.GLX_RGBA_TYPE, share, direct);
+        if (temp_context == 0) {
+            throw new GLException("Unable to create temp OpenGL context");
+        } else {
+            if (!GLX.glXMakeContextCurrent(display,
+                                           drawable.getNativeWindow().getSurfaceHandle(), 
+                                           drawableRead.getNativeWindow().getSurfaceHandle(), 
+                                           temp_context)) {
+              throw new GLException("Error making temp context (old) current: display 0x"+Long.toHexString(display)+", context 0x"+Long.toHexString(context)+", drawable "+drawable);
+            }
+            setGLFunctionAvailability(true);
+
+            if( !isFunctionAvailable("glXCreateContextAttribsARB") ||
+                !isExtensionAvailable("GLX_ARB_create_context") )  {
+                if(glCaps.getGLProfile().isGL3()) {
+                  GLX.glXMakeContextCurrent(display, 0, 0, 0);
+                  GLX.glXDestroyContext(display, temp_context);
+                  throw new GLException("Unable to create OpenGL >= 3.1 context (no GLX_ARB_create_context)");
+                }
+
+                // continue with temp context for GL < 3.0
+                context = temp_context;
+                if(DEBUG) {
+                  System.err.println("X11GLXContext.createContext done (old ctx < 3.0 - no GLX_ARB_create_context) 0x"+Long.toHexString(context));
+                }
+            } else {
+                GLXExt glXExt = getGLXExt();
+
+                // preset with default values
+                int attribs[] = {
+                    /*  0 */ GLX.GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
+                    /*  2 */ GLX.GLX_CONTEXT_MINOR_VERSION_ARB, 0,
+                    /*  4 */ GLX.GLX_RENDER_TYPE,               GLX.GLX_RGBA_TYPE,
+                    /*  6 */ GLX.GLX_CONTEXT_FLAGS_ARB,         0 /* GLX.GLX_CONTEXT_DEBUG_BIT_ARB */,      
+                    /*  8 */ 0,                                 0,
+                    /* 10 */ 0
+                };
+
+                if(glCaps.getGLProfile().isGL3()) {
+                    // Try >= 3.2 core first 
+                    // and verify with a None drawable binding (default framebuffer)
+                    attribs[0+1]  = 3;
+                    attribs[2+1]  = 2;
+                    if(glCaps.getGLProfile().isGL3bc()) {
+                        attribs[8+0]  = GLX.GLX_CONTEXT_PROFILE_MASK_ARB;
+                        attribs[8+1]  = GLX.GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
+                    }
+                    /**
+                     * don't stricten requirements any further, even compatible would be fine
+                     *
+                     } else {
+                        attribs[8+0]  = GLX.GLX_CONTEXT_PROFILE_MASK_ARB;
+                        attribs[8+1]  = GLX.GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
+                     } 
+                     */
+
+                    context = glXExt.glXCreateContextAttribsARB(display, config.getFBConfig(), share, direct, attribs, 0);
+                    if(0!=context) {
+                        if (!GLX.glXMakeContextCurrent(display,
+                                                       drawable.getNativeWindow().getSurfaceHandle(), 
+                                                       drawableRead.getNativeWindow().getSurfaceHandle(), 
+                                                       context)) {
+                            if(DEBUG) {
+                              System.err.println("X11GLXContext.createContext couldn't make >= 3.2 core context current - fallback");
+                            }
+                            GLX.glXMakeContextCurrent(display, 0, 0, 0);
+                            GLX.glXDestroyContext(display, context);
+                            context = 0;
+                        } else if(DEBUG) {
+                          System.err.println("X11GLXContext.createContext >= 3.2 available 0x"+Long.toHexString(context));
+                        }
+                    } else {
+                        if(DEBUG) {
+                          System.err.println("X11GLXContext.createContext couldn't create >= 3.2 core context - fallback");
+                        }
+                    }
+                    if(0==context) {
+                        // Try >= 3.1 forward compatible - last resort for GL3 !
+                        attribs[0+1]  = 3;
+                        attribs[2+1]  = 1;
+                        if(!glCaps.getGLProfile().isGL3bc()) {
+                            attribs[6+1] |= GLX.GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
+                        }
+                        attribs[8+0]  = 0;
+                        attribs[8+1]  = 0;
+                    }
+                }
+                if(0==context) {
+                    // 3.1 or 3.0 ..
+                    context = glXExt.glXCreateContextAttribsARB(display, config.getFBConfig(), share, direct, attribs, 0);
+                    if(0!=context) {
+                        if (!GLX.glXMakeContextCurrent(display,
+                                                       drawable.getNativeWindow().getSurfaceHandle(), 
+                                                       drawableRead.getNativeWindow().getSurfaceHandle(), 
+                                                       context)) {
+                            if(DEBUG) {
+                              System.err.println("X11GLXContext.createContext couldn't make >= 3.0 core context current - fallback");
+                            }
+                            GLX.glXMakeContextCurrent(display, 0, 0, 0);
+                            GLX.glXDestroyContext(display, context);
+                            context = 0;
+                        } else if(DEBUG) {
+                          System.err.println("X11GLXContext.createContext >= 3.0 available 0x"+Long.toHexString(context));
+                        }
+                    } else {
+                        if(DEBUG) {
+                          System.err.println("X11GLXContext.createContext couldn't create >= 3.0 core context - fallback");
+                        }
+                    }
+                }
+
+                if(0==context) {
+                    if(glCaps.getGLProfile().isGL3()) {
+                      GLX.glXMakeContextCurrent(display, 0, 0, 0);
+                      GLX.glXDestroyContext(display, temp_context);
+                      throw new GLException("Unable to create OpenGL >= 3.1 context (have GLX_ARB_create_context)");
+                    }
+
+                    // continue with temp context for GL < 3.0
+                    context = temp_context;
+                    if (!GLX.glXMakeContextCurrent(display,
+                                                   drawable.getNativeWindow().getSurfaceHandle(), 
+                                                   drawableRead.getNativeWindow().getSurfaceHandle(), 
+                                                   context)) {
+                      GLX.glXMakeContextCurrent(display, 0, 0, 0);
+                      GLX.glXDestroyContext(display, temp_context);
+                      throw new GLException("Error making context (old) current: display 0x"+Long.toHexString(display)+", context 0x"+Long.toHexString(context)+", drawable "+drawable);
+                    }
+                    if(DEBUG) {
+                      System.err.println("X11GLXContext.createContext done (old ctx < 3.0 - no 3.0) 0x"+Long.toHexString(context));
+                    }
+                } else {
+                    GLX.glXDestroyContext(display, temp_context);
+
+                    // need to update the GL func table ..
+                    updateGLProcAddressTable();
+                    if(DEBUG) {
+                      System.err.println("X11GLXContext.createContext done (new ctx >= 3.0) 0x"+Long.toHexString(context));
+                    }
+                }
+            }
+        } 
+    } 
+    GLContextShareSet.contextCreated(this);
+  }
+
+  // Note: Usually the surface shall be locked within [makeCurrent .. swap .. release]
+  protected int makeCurrentImpl() throws GLException {
+    int lockRes = drawable.lockSurface();
+    boolean exceptionOccurred = false;
+    try {
+      if (lockRes == NativeWindow.LOCK_SURFACE_NOT_READY) {
+        return CONTEXT_NOT_CURRENT;
+      }
+      return makeCurrentImplAfterLock();
+    } catch (RuntimeException e) {
+      exceptionOccurred = true;
+      throw e;
+    } finally {
+      if (exceptionOccurred ||
+          (isOptimizable() && lockRes != NativeWindow.LOCK_SURFACE_NOT_READY) && drawable.isSurfaceLocked()) {
+        drawable.unlockSurface();
+      }
+    }
+  }
+
+  // Note: Usually the surface shall be locked within [makeCurrent .. swap .. release]
+  protected void releaseImpl() throws GLException {
+    try {
+      releaseImplAfterLock();
+    } finally {
+      if (!isOptimizable() && drawable.isSurfaceLocked()) {
+        drawable.unlockSurface();
+      }
+    }
+  }
+
+  protected int makeCurrentImplAfterLock() throws GLException {
+    getDrawableImpl().getFactoryImpl().lockToolkit();
+    try {
+        if (drawable.getNativeWindow().getSurfaceHandle() == 0) {
+            if (DEBUG) {
+              System.err.println("drawable not properly initialized");
+            }
+            return CONTEXT_NOT_CURRENT;
+        }
+        boolean created = false;
+        if (context == 0) {
+          create();
+          if (DEBUG) {
+            System.err.println(getThreadName() + ": !!! Created GL context for " + getClass().getName());
+          }
+          created = true;
+        }
+
+        if (GLX.glXGetCurrentContext() != context) {
+            
+            if (!GLX.glXMakeContextCurrent(drawable.getNativeWindow().getDisplayHandle(), 
+                                           drawable.getNativeWindow().getSurfaceHandle(), 
+                                           drawableRead.getNativeWindow().getSurfaceHandle(), 
+                                           context)) {
+              throw new GLException("Error making context current");
+            }
+            if (DEBUG && (VERBOSE || created)) {
+              System.err.println(getThreadName() + ": glXMakeCurrent(display " + 
+                                 toHexString(drawable.getNativeWindow().getDisplayHandle()) +
+                                 ", drawable " + toHexString(drawable.getNativeWindow().getSurfaceHandle()) +
+                                 ", drawableRead " + toHexString(drawableRead.getNativeWindow().getSurfaceHandle()) +
+                                 ", context " + toHexString(context) + ") succeeded");
+            }
+        }
+
+        if (created) {
+          setGLFunctionAvailability(false);
+          return CONTEXT_CURRENT_NEW;
+        }
+        return CONTEXT_CURRENT;
+    } finally {
+        getDrawableImpl().getFactoryImpl().unlockToolkit();
+    }
+  }
+
+  protected void releaseImplAfterLock() throws GLException {
+    getDrawableImpl().getFactoryImpl().lockToolkit();
+    try {
+        if (!GLX.glXMakeContextCurrent(drawable.getNativeWindow().getDisplayHandle(), 0, 0, 0)) {
+            throw new GLException("Error freeing OpenGL context");
+        }
+    } finally {
+        getDrawableImpl().getFactoryImpl().unlockToolkit();
+    }
+  }
+
+  protected void destroyImpl() throws GLException {
+    getDrawableImpl().getFactoryImpl().lockToolkit();
+    try {
+        if (context != 0) {
+            if (DEBUG) {
+              System.err.println("glXDestroyContext(0x" +
+                                 Long.toHexString(drawable.getNativeWindow().getDisplayHandle()) +
+                                 ", 0x" +
+                                 Long.toHexString(context) + ")");
+            }
+            GLX.glXDestroyContext(drawable.getNativeWindow().getDisplayHandle(), context);
+            if (DEBUG) {
+              System.err.println("!!! Destroyed OpenGL context " + context);
+            }
+            context = 0;
+            GLContextShareSet.contextDestroyed(this);
+        }
+    } finally {
+        getDrawableImpl().getFactoryImpl().unlockToolkit();
+    }
+  }
+
+  public boolean isCreated() {
+    return (context != 0);
+  }
+
+  public void copy(GLContext source, int mask) throws GLException {
+    long dst = getContext();
+    long src = ((X11GLXContext) source).getContext();
+    if (src == 0) {
+      throw new GLException("Source OpenGL context has not been created");
+    }
+    if (dst == 0) {
+      throw new GLException("Destination OpenGL context has not been created");
+    }
+    if (drawable.getNativeWindow().getDisplayHandle() == 0) {
+      throw new GLException("Connection to X display not yet set up");
+    }
+    getDrawableImpl().getFactoryImpl().lockToolkit();
+    try {
+      GLX.glXCopyContext(drawable.getNativeWindow().getDisplayHandle(), src, dst, mask);
+      // Should check for X errors and raise GLException
+    } finally {
+      getDrawableImpl().getFactoryImpl().unlockToolkit();
+    }
+  }
+
+  protected void updateGLProcAddressTable() {
+    if (DEBUG) {
+      System.err.println(getThreadName() + ": !!! Initializing GLX extension address table");
+    }
+    glXQueryExtensionsStringInitialized = false;
+    glXQueryExtensionsStringAvailable = false;
+
+    if (glXExtProcAddressTable == null) {
+      // FIXME: cache ProcAddressTables by capability bits so we can
+      // share them among contexts with the same capabilities
+      glXExtProcAddressTable = new GLXExtProcAddressTable();
+    }          
+    resetProcAddressTable(getGLXExtProcAddressTable());
+    super.updateGLProcAddressTable();
+  }
+
+  public synchronized String getPlatformExtensionsString() {
+    if (!glXQueryExtensionsStringInitialized) {
+      glXQueryExtensionsStringAvailable =
+        getDrawableImpl().getDynamicLookupHelper().dynamicLookupFunction("glXQueryExtensionsString") != 0;
+      glXQueryExtensionsStringInitialized = true;
+    }
+    if (glXQueryExtensionsStringAvailable) {
+      GLDrawableFactoryImpl factory = getDrawableImpl().getFactoryImpl();
+      factory.lockToolkit();
+      try {
+        String ret = GLX.glXQueryExtensionsString(drawable.getNativeWindow().getDisplayHandle(), 
+                                                  drawable.getNativeWindow().getScreenIndex());
+        if (DEBUG) {
+          System.err.println("!!! GLX extensions: " + ret);
+        }
+        return ret;
+      } finally {
+        factory.unlockToolkit();
+      }
+    } else {
+      return "";
+    }
+  }
+
+  public boolean isExtensionAvailable(String glExtensionName) {
+    if (glExtensionName.equals("GL_ARB_pbuffer") ||
+        glExtensionName.equals("GL_ARB_pixel_format")) {
+      return getGLDrawable().getFactory().canCreateGLPbuffer();
+    }
+    return super.isExtensionAvailable(glExtensionName);
+  }
+
+
+  private int hasSwapIntervalSGI = 0;
+
+  protected void setSwapIntervalImpl(int interval) {
+    getDrawableImpl().getFactoryImpl().lockToolkit();
+    try {
+      GLXExt glXExt = getGLXExt();
+      if(0==hasSwapIntervalSGI) {
+        try {
+            hasSwapIntervalSGI = glXExt.isExtensionAvailable("GLX_SGI_swap_control")?1:-1;
+        } catch (Throwable t) { hasSwapIntervalSGI=1; }
+      }
+      if (hasSwapIntervalSGI>0) {
+        try {
+            if( 0 == glXExt.glXSwapIntervalSGI(interval) ) {
+                currentSwapInterval = interval;
+            }
+        } catch (Throwable t) { hasSwapIntervalSGI=-1; }
+      }
+    } finally {
+      getDrawableImpl().getFactoryImpl().unlockToolkit();
+    }
+  }
+
+  public ByteBuffer glAllocateMemoryNV(int arg0, float arg1, float arg2, float arg3) {
+    return getGLXExt().glXAllocateMemoryNV(arg0, arg1, arg2, arg3);
+  }
+
+  public int getOffscreenContextPixelDataType() {
+    throw new GLException("Should not call this");
+  }
+
+  public int getOffscreenContextReadBuffer() {
+    throw new GLException("Should not call this");
+  }
+
+  public boolean offscreenImageNeedsVerticalFlip() {
+    throw new GLException("Should not call this");
+  }
+
+  public void bindPbufferToTexture() {
+    throw new GLException("Should not call this");
+  }
+
+  public void releasePbufferFromTexture() {
+    throw new GLException("Should not call this");
+  }
+
+  public boolean isOptimizable() {
+    return (super.isOptimizable() && !isVendorATI);
+  }
+
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  //
+
+  public long getContext() {
+    return context;
+  }
+
+  private boolean isVendorATI = false;
+
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXDrawable.java
new file mode 100644
index 000000000..fe030af00
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXDrawable.java
@@ -0,0 +1,100 @@
+/*
+ * 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 com.jogamp.opengl.impl.x11.glx;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.x11.*;
+import com.jogamp.gluegen.runtime.DynamicLookupHelper;
+
+public abstract class X11GLXDrawable extends GLDrawableImpl {
+  protected X11GLXDrawable(GLDrawableFactory factory, NativeWindow comp, boolean realized) {
+    super(factory, comp, realized);
+  }
+
+  public DynamicLookupHelper getDynamicLookupHelper() {
+    return (X11GLXDrawableFactory) getFactoryImpl() ;
+  }
+
+  protected void setRealizedImpl() {
+    if(!realized) {
+        return; // nothing to do 
+    }
+
+    if(NativeWindow.LOCK_SURFACE_NOT_READY == lockSurface()) {
+      throw new GLException("X11GLXDrawable.setRealized(true): lockSurface - surface not ready");
+    }
+    try {
+        X11GLXGraphicsConfiguration config = (X11GLXGraphicsConfiguration)getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+        config.updateGraphicsConfiguration();
+
+        if (DEBUG) {
+          System.err.println("!!! X11GLXDrawable.setRealized(true): "+config);
+        }
+    } finally {
+        unlockSurface();
+    }
+  }
+
+  protected void swapBuffersImpl() {
+    boolean didLock = false;
+    try {
+      if ( !isSurfaceLocked() ) {
+          // Usually the surface shall be locked within [makeCurrent .. swap .. release]
+          if (lockSurface() == NativeWindow.LOCK_SURFACE_NOT_READY) {
+              return;
+          }
+          didLock=true;
+      }
+
+      GLX.glXSwapBuffers(component.getDisplayHandle(), component.getSurfaceHandle());
+
+    } finally {
+      if(didLock) {
+          unlockSurface();
+      }
+    }
+  }
+
+  //---------------------------------------------------------------------------
+  // Internals only below this point
+  //
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXDrawableFactory.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXDrawableFactory.java
new file mode 100644
index 000000000..089a516ee
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXDrawableFactory.java
@@ -0,0 +1,285 @@
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.x11.glx;
+
+import java.nio.*;
+import java.security.*;
+import java.util.*;
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.x11.*;
+import javax.media.opengl.*;
+import com.jogamp.gluegen.runtime.*;
+import com.jogamp.gluegen.runtime.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.opengl.impl.x11.glx.*;
+import com.sun.nativewindow.impl.NullWindow;
+import com.sun.nativewindow.impl.NWReflection;
+import com.sun.nativewindow.impl.x11.*;
+
+public class X11GLXDrawableFactory extends GLDrawableFactoryImpl implements DynamicLookupHelper {
+  public X11GLXDrawableFactory() {
+    super();
+    // Must initialize GLX support eagerly in case a pbuffer is the
+    // first thing instantiated
+    GLProcAddressHelper.resetProcAddressTable(GLX.getGLXProcAddressTable(), this);
+    // Register our GraphicsConfigurationFactory implementations
+    // The act of constructing them causes them to be registered
+    new X11GLXGraphicsConfigurationFactory();
+    try {
+      NWReflection.createInstance("com.jogamp.opengl.impl.x11.glx.awt.X11AWTGLXGraphicsConfigurationFactory",
+                                  new Object[] {});
+    } catch (Throwable t) { }
+  }
+
+  public GLDrawableImpl createOnscreenDrawable(NativeWindow target) {
+    if (target == null) {
+      throw new IllegalArgumentException("Null target");
+    }
+    return new X11OnscreenGLXDrawable(this, target);
+  }
+
+  protected GLDrawableImpl createOffscreenDrawable(NativeWindow target) {
+    return new X11OffscreenGLXDrawable(this, target);
+  }
+
+  private boolean pbufferSupportInitialized = false;
+  private boolean canCreateGLPbuffer = false;
+  public boolean canCreateGLPbuffer() {
+    if (!pbufferSupportInitialized) {
+        long display = X11Util.getThreadLocalDefaultDisplay();
+        int[] major = new int[1];
+        int[] minor = new int[1];
+        int screen = 0; // FIXME: provide way to specify this?
+
+        if (!GLX.glXQueryVersion(display, major, 0, minor, 0)) {
+          throw new GLException("glXQueryVersion failed");
+        }
+        if (DEBUG) {
+          System.err.println("!!! GLX version: major " + major[0] +
+                             ", minor " + minor[0]);
+        }
+
+        // Work around bugs in ATI's Linux drivers where they report they
+        // only implement GLX version 1.2 on the server side
+        if (major[0] == 1 && minor[0] == 2) {
+          String str = GLX.glXGetClientString(display, GLX.GLX_VERSION);
+          if (str != null && str.startsWith("1.") &&
+             (str.charAt(2) >= '3')) {
+            canCreateGLPbuffer = true;
+          }
+        } else {
+          canCreateGLPbuffer = ((major[0] > 1) || (minor[0] > 2));
+        }
+
+        pbufferSupportInitialized = true;        
+    }
+    return canCreateGLPbuffer;
+  }
+
+  protected GLDrawableImpl createGLPbufferDrawableImpl(final NativeWindow target) {
+    /** 
+     * FIXME: Think about this ..
+     * should not be necessary ? ..
+    final List returnList = new ArrayList();
+    final GLDrawableFactory factory = this;
+    Runnable r = new Runnable() {
+        public void run() {
+          returnList.add(new X11PbufferGLXDrawable(factory, target));
+        }
+      };
+    maybeDoSingleThreadedWorkaround(r);
+    return (GLDrawableImpl) returnList.get(0);
+    */
+    return new X11PbufferGLXDrawable(this, target);
+  }
+
+
+  protected NativeWindow createOffscreenWindow(GLCapabilities capabilities, GLCapabilitiesChooser chooser, int width, int height) {
+    AbstractGraphicsScreen screen = X11GraphicsScreen.createDefault();
+    NullWindow nw = new NullWindow(X11GLXGraphicsConfigurationFactory.chooseGraphicsConfigurationStatic(capabilities, chooser, screen));
+    nw.setSize(width, height);
+    return nw;
+  }
+
+  public GLContext createExternalGLContext() {
+    return X11ExternalGLXContext.create(this, null);
+  }
+
+  public boolean canCreateExternalGLDrawable() {
+    return canCreateGLPbuffer();
+  }
+
+  public GLDrawable createExternalGLDrawable() {
+    return X11ExternalGLXDrawable.create(this, null);
+  }
+
+  public void loadGLULibrary() {
+    X11Lib.dlopen("/usr/lib/libGLU.so");
+  }
+
+  public long dynamicLookupFunction(String glFuncName) {
+    long res = 0;
+    res = GLX.glXGetProcAddressARB(glFuncName);
+    if (res == 0) {
+      // GLU routines aren't known to the OpenGL function lookup
+      res = X11Lib.dlsym(glFuncName);
+    }
+    return res;
+  }
+
+  public boolean canCreateContextOnJava2DSurface() {
+    return false;
+  }
+
+  public GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
+    throws GLException {
+    throw new GLException("Unimplemented on this platform");
+  }
+
+  //----------------------------------------------------------------------
+  // Gamma-related functionality
+  //
+
+  private boolean gotGammaRampLength;
+  private int gammaRampLength;
+  protected synchronized int getGammaRampLength() {
+    if (gotGammaRampLength) {
+      return gammaRampLength;
+    }
+
+    long display = X11Util.getThreadLocalDefaultDisplay();
+    try {
+        X11Lib.XLockDisplay(display);
+        int[] size = new int[1];
+        boolean res = X11Lib.XF86VidModeGetGammaRampSize(display,
+                                                      X11Lib.DefaultScreen(display),
+                                                      size, 0);
+        if (!res) {
+          return 0;
+        }
+        gotGammaRampLength = true;
+        gammaRampLength = size[0];
+        return gammaRampLength;
+    } finally {
+        X11Lib.XUnlockDisplay(display);
+    }
+  }
+
+  protected boolean setGammaRamp(float[] ramp) {
+    int len = ramp.length;
+    short[] rampData = new short[len];
+    for (int i = 0; i < len; i++) {
+      rampData[i] = (short) (ramp[i] * 65535);
+    }
+
+    long display = X11Util.getThreadLocalDefaultDisplay();
+    try {
+        X11Lib.XLockDisplay(display);
+        boolean res = X11Lib.XF86VidModeSetGammaRamp(display,
+                                                  X11Lib.DefaultScreen(display),
+                                                  rampData.length,
+                                                  rampData, 0,
+                                                  rampData, 0,
+                                                  rampData, 0);
+        return res;
+    } finally {
+        X11Lib.XUnlockDisplay(display);
+    }
+  }
+
+  protected Buffer getGammaRamp() {
+    int size = getGammaRampLength();
+    ShortBuffer rampData = ShortBuffer.wrap(new short[3 * size]);
+    rampData.position(0);
+    rampData.limit(size);
+    ShortBuffer redRampData = rampData.slice();
+    rampData.position(size);
+    rampData.limit(2 * size);
+    ShortBuffer greenRampData = rampData.slice();
+    rampData.position(2 * size);
+    rampData.limit(3 * size);
+    ShortBuffer blueRampData = rampData.slice();
+    long display = X11Util.getThreadLocalDefaultDisplay();
+    try {
+        X11Lib.XLockDisplay(display);
+        boolean res = X11Lib.XF86VidModeGetGammaRamp(display,
+                                                  X11Lib.DefaultScreen(display),
+                                                  size,
+                                                  redRampData,
+                                                  greenRampData,
+                                                  blueRampData);
+        if (!res) {
+          return null;
+        }
+        return rampData;
+    } finally {
+        X11Lib.XUnlockDisplay(display);
+    }
+  }
+
+  protected void resetGammaRamp(Buffer originalGammaRamp) {
+    if (originalGammaRamp == null)
+      return; // getGammaRamp failed originally
+    ShortBuffer rampData = (ShortBuffer) originalGammaRamp;
+    int capacity = rampData.capacity();
+    if ((capacity % 3) != 0) {
+      throw new IllegalArgumentException("Must not be the original gamma ramp");
+    }
+    int size = capacity / 3;
+    rampData.position(0);
+    rampData.limit(size);
+    ShortBuffer redRampData = rampData.slice();
+    rampData.position(size);
+    rampData.limit(2 * size);
+    ShortBuffer greenRampData = rampData.slice();
+    rampData.position(2 * size);
+    rampData.limit(3 * size);
+    ShortBuffer blueRampData = rampData.slice();
+    long display = X11Util.getThreadLocalDefaultDisplay();
+    try {
+        X11Lib.XLockDisplay(display);
+        X11Lib.XF86VidModeSetGammaRamp(display,
+                                    X11Lib.DefaultScreen(display),
+                                    size,
+                                    redRampData,
+                                    greenRampData,
+                                    blueRampData);
+    } finally {
+        X11Lib.XUnlockDisplay(display);
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXGraphicsConfiguration.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXGraphicsConfiguration.java
new file mode 100644
index 000000000..498605594
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXGraphicsConfiguration.java
@@ -0,0 +1,416 @@
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.x11.glx;
+
+import java.util.*;
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.x11.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.gluegen.runtime.NativeLibrary;
+import com.jogamp.gluegen.runtime.PointerBuffer;
+import com.sun.nativewindow.impl.x11.*;
+
+public class X11GLXGraphicsConfiguration extends X11GraphicsConfiguration implements Cloneable {
+    protected static final boolean DEBUG = Debug.debug("GraphicsConfiguration");
+    
+    public static final int MAX_ATTRIBS = 128;
+    private long fbConfig;
+    private int  fbConfigID;
+    private GLCapabilitiesChooser chooser; 
+
+    public X11GLXGraphicsConfiguration(X11GraphicsScreen screen, 
+                                       GLCapabilities capsChosen, GLCapabilities capsRequested, GLCapabilitiesChooser chooser,
+                                       XVisualInfo info, long fbcfg, int fbcfgID) {
+        super(screen, capsChosen, capsRequested, info);
+        this.chooser=chooser;
+        fbConfig = fbcfg;
+        fbConfigID = fbcfgID;
+    }
+
+    public static X11GLXGraphicsConfiguration create(GLProfile glp, X11GraphicsScreen x11Screen, int fbcfgID) {
+      long display = x11Screen.getDevice().getHandle();
+      if(0==display) {
+          throw new GLException("Display null of "+x11Screen);
+      }
+      int screen = x11Screen.getIndex();
+      long fbcfg = glXFBConfigID2FBConfig(display, screen, fbcfgID);
+      if(0==fbcfg) {
+          throw new GLException("FBConfig null of 0x"+Integer.toHexString(fbcfgID));
+      }
+      if(null==glp) {
+        glp = GLProfile.getDefault();
+      }
+      GLCapabilities caps = GLXFBConfig2GLCapabilities(glp, display, fbcfg, true, true, true, GLXUtil.isMultisampleAvailable(display));
+      if(null==caps) {
+          throw new GLException("GLCapabilities null of 0x"+Long.toHexString(fbcfg));
+      }
+      XVisualInfo xvi = GLX.glXGetVisualFromFBConfigCopied(display, fbcfg);
+      if(null==xvi) {
+          throw new GLException("XVisualInfo null of 0x"+Long.toHexString(fbcfg));
+      }
+      return new X11GLXGraphicsConfiguration(x11Screen, caps, caps, new DefaultGLCapabilitiesChooser(), xvi, fbcfg, fbcfgID);
+    }
+
+    public Object clone() {
+        return super.clone();
+    }
+
+    public long getFBConfig()   { return fbConfig; }
+    public int  getFBConfigID() { return fbConfigID; }
+
+    protected void updateGraphicsConfiguration() {
+        X11GLXGraphicsConfiguration newConfig = (X11GLXGraphicsConfiguration)
+            GraphicsConfigurationFactory.getFactory(getScreen().getDevice()).chooseGraphicsConfiguration(getRequestedCapabilities(),
+                                                                                                         chooser,
+                                                                                                         getScreen());
+        if(null!=newConfig) {
+            // FIXME: setScreen( ... );
+            setXVisualInfo(newConfig.getXVisualInfo());
+            setChosenCapabilities(newConfig.getChosenCapabilities());
+            fbConfig = newConfig.getFBConfig();
+            fbConfigID = newConfig.getFBConfigID();
+            if(DEBUG) {
+                System.err.println("!!! updateGraphicsConfiguration: "+this);
+            }
+        }
+    }
+
+    public static int[] GLCapabilities2AttribList(GLCapabilities caps,
+                                                  boolean forFBAttr,
+                                                  boolean isMultisampleAvailable,
+                                                  long display,
+                                                  int screen) 
+    {
+        int colorDepth = (caps.getRedBits() +
+                          caps.getGreenBits() +
+                          caps.getBlueBits());
+        if (colorDepth < 15) {
+          throw new GLException("Bit depths < 15 (i.e., non-true-color) not supported");
+        }
+        int[] res = new int[MAX_ATTRIBS];
+        int idx = 0;
+
+        if (forFBAttr) {
+          res[idx++] = GLX.GLX_DRAWABLE_TYPE;
+          res[idx++] = caps.isOnscreen() ? ( GLX.GLX_WINDOW_BIT ) : ( caps.isPBuffer() ? GLX.GLX_PBUFFER_BIT : GLX.GLX_PIXMAP_BIT ) ;
+        }
+
+        if (forFBAttr) {
+          res[idx++] = GLX.GLX_RENDER_TYPE;
+          res[idx++] = GLX.GLX_RGBA_BIT;
+        } else {
+          res[idx++] = GLX.GLX_RGBA;
+        }
+
+        // FIXME: Still a bug is Mesa: PBUFFER && GLX_STEREO==GL_FALSE ?
+        if (forFBAttr) {
+            res[idx++] = GLX.GLX_DOUBLEBUFFER;
+            res[idx++] = caps.getDoubleBuffered()?GL.GL_TRUE:GL.GL_FALSE;
+            res[idx++] = GLX.GLX_STEREO;
+            res[idx++] = caps.getStereo()?GL.GL_TRUE:GL.GL_FALSE;
+            res[idx++] = GLX.GLX_TRANSPARENT_TYPE;
+            res[idx++] = caps.isBackgroundOpaque()?GLX.GLX_NONE:GLX.GLX_TRANSPARENT_RGB;
+            if(!caps.isBackgroundOpaque()) {
+                res[idx++] = GLX.GLX_TRANSPARENT_RED_VALUE;
+                res[idx++] = caps.getTransparentRedValue()>=0?caps.getTransparentRedValue():(int)GLX.GLX_DONT_CARE;
+                res[idx++] = GLX.GLX_TRANSPARENT_GREEN_VALUE;
+                res[idx++] = caps.getTransparentGreenValue()>=0?caps.getTransparentGreenValue():(int)GLX.GLX_DONT_CARE;
+                res[idx++] = GLX.GLX_TRANSPARENT_BLUE_VALUE;
+                res[idx++] = caps.getTransparentBlueValue()>=0?caps.getTransparentBlueValue():(int)GLX.GLX_DONT_CARE;
+                res[idx++] = GLX.GLX_TRANSPARENT_ALPHA_VALUE;
+                res[idx++] = caps.getTransparentAlphaValue()>=0?caps.getTransparentAlphaValue():(int)GLX.GLX_DONT_CARE;
+            }
+        } else {
+            if (caps.getDoubleBuffered()) {
+              res[idx++] = GLX.GLX_DOUBLEBUFFER;
+            }
+            if (caps.getStereo()) {
+              res[idx++] = GLX.GLX_STEREO;
+            }
+        }
+
+        res[idx++] = GLX.GLX_RED_SIZE;
+        res[idx++] = caps.getRedBits();
+        res[idx++] = GLX.GLX_GREEN_SIZE;
+        res[idx++] = caps.getGreenBits();
+        res[idx++] = GLX.GLX_BLUE_SIZE;
+        res[idx++] = caps.getBlueBits();
+        res[idx++] = GLX.GLX_ALPHA_SIZE;
+        res[idx++] = caps.getAlphaBits();
+        res[idx++] = GLX.GLX_DEPTH_SIZE;
+        res[idx++] = caps.getDepthBits();
+        if (caps.getStencilBits() > 0) {
+          res[idx++] = GLX.GLX_STENCIL_SIZE;
+          res[idx++] = caps.getStencilBits();
+        }
+        if (caps.getAccumRedBits()   > 0 ||
+            caps.getAccumGreenBits() > 0 ||
+            caps.getAccumBlueBits()  > 0 ||
+            caps.getAccumAlphaBits() > 0) {
+          res[idx++] = GLX.GLX_ACCUM_RED_SIZE;
+          res[idx++] = caps.getAccumRedBits();
+          res[idx++] = GLX.GLX_ACCUM_GREEN_SIZE;
+          res[idx++] = caps.getAccumGreenBits();
+          res[idx++] = GLX.GLX_ACCUM_BLUE_SIZE;
+          res[idx++] = caps.getAccumBlueBits();
+          res[idx++] = GLX.GLX_ACCUM_ALPHA_SIZE;
+          res[idx++] = caps.getAccumAlphaBits();
+        }
+        if (isMultisampleAvailable && caps.getSampleBuffers()) {
+          res[idx++] = GLX.GLX_SAMPLE_BUFFERS;
+          res[idx++] = GL.GL_TRUE;
+          res[idx++] = GLX.GLX_SAMPLES;
+          res[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[idx++] = GLXExt.GLX_FLOAT_COMPONENTS_NV;
+            res[idx++] = GL.GL_TRUE;
+          }
+        }
+        res[idx++] = 0;
+        return res;
+  }
+
+  // FBConfig
+
+  public static boolean GLXFBConfigValid(long display, long fbcfg) {
+    int[] tmp = new int[1];
+    if(GLX.GLX_BAD_ATTRIBUTE == GLX.glXGetFBConfigAttrib(display, fbcfg, GLX.GLX_RENDER_TYPE, tmp, 0)) {
+      return false;
+    }
+    return true;
+  }
+
+  public static boolean GLXFBConfigDrawableTypeVerify(int val, boolean onscreen, boolean usePBuffer) {
+    boolean res;
+
+    if ( onscreen ) {
+        res = ( 0 != (val & GLX.GLX_WINDOW_BIT) ) ;
+    } else {
+        res = ( 0 != (val & GLX.GLX_PIXMAP_BIT) ) || usePBuffer ;
+    }
+    if ( usePBuffer ) {
+        res = res && ( 0 != (val & GLX.GLX_PBUFFER_BIT) ) ;
+    }
+
+    return res;
+  }
+
+  public static GLCapabilities GLXFBConfig2GLCapabilities(GLProfile glp, long display, long fbcfg, 
+                                                          boolean relaxed, boolean onscreen, boolean usePBuffer, boolean isMultisampleEnabled) {
+    int[] tmp = new int[1];
+    int val;
+    val = glXGetFBConfig(display, fbcfg, GLX.GLX_RENDER_TYPE, tmp, 0);
+    if (val != GLX.GLX_RGBA_BIT) {
+      throw new GLException("Visual does not support RGBA");
+    }
+    GLCapabilities res = new GLCapabilities(glp);
+
+    val = glXGetFBConfig(display, fbcfg, GLX.GLX_DRAWABLE_TYPE, tmp, 0);
+    if(GLXFBConfigDrawableTypeVerify(val, onscreen, usePBuffer)) {
+        res.setOnscreen(onscreen);
+        res.setPBuffer(usePBuffer);
+    } else if(relaxed) {
+        res.setOnscreen( 0 != (val & GLX.GLX_WINDOW_BIT) );
+        res.setPBuffer ( 0 != (val & GLX.GLX_PBUFFER_BIT) );
+    } else {
+        throw new GLException("GLX_DRAWABLE_TYPE does not match !!!");
+    }
+    res.setDoubleBuffered(glXGetFBConfig(display, fbcfg, GLX.GLX_DOUBLEBUFFER,     tmp, 0) != 0);
+    res.setStereo        (glXGetFBConfig(display, fbcfg, GLX.GLX_STEREO,           tmp, 0) != 0);
+    res.setHardwareAccelerated(glXGetFBConfig(display, fbcfg, GLX.GLX_CONFIG_CAVEAT, tmp, 0) != GLX.GLX_SLOW_CONFIG);
+    res.setDepthBits     (glXGetFBConfig(display, fbcfg, GLX.GLX_DEPTH_SIZE,       tmp, 0));
+    res.setStencilBits   (glXGetFBConfig(display, fbcfg, GLX.GLX_STENCIL_SIZE,     tmp, 0));
+    res.setRedBits       (glXGetFBConfig(display, fbcfg, GLX.GLX_RED_SIZE,         tmp, 0));
+    res.setGreenBits     (glXGetFBConfig(display, fbcfg, GLX.GLX_GREEN_SIZE,       tmp, 0));
+    res.setBlueBits      (glXGetFBConfig(display, fbcfg, GLX.GLX_BLUE_SIZE,        tmp, 0));
+    res.setAlphaBits     (glXGetFBConfig(display, fbcfg, GLX.GLX_ALPHA_SIZE,       tmp, 0));
+    res.setAccumRedBits  (glXGetFBConfig(display, fbcfg, GLX.GLX_ACCUM_RED_SIZE,   tmp, 0));
+    res.setAccumGreenBits(glXGetFBConfig(display, fbcfg, GLX.GLX_ACCUM_GREEN_SIZE, tmp, 0));
+    res.setAccumBlueBits (glXGetFBConfig(display, fbcfg, GLX.GLX_ACCUM_BLUE_SIZE,  tmp, 0));
+    res.setAccumAlphaBits(glXGetFBConfig(display, fbcfg, GLX.GLX_ACCUM_ALPHA_SIZE, tmp, 0));
+    if (isMultisampleEnabled) {
+      res.setSampleBuffers(glXGetFBConfig(display, fbcfg, GLX.GLX_SAMPLE_BUFFERS, tmp, 0) != 0);
+      res.setNumSamples   (glXGetFBConfig(display, fbcfg, GLX.GLX_SAMPLES,        tmp, 0));
+    }
+    res.setBackgroundOpaque(glXGetFBConfig(display, fbcfg, GLX.GLX_TRANSPARENT_TYPE, tmp, 0) == GLX.GLX_NONE);
+    if(!res.isBackgroundOpaque()) {
+        glXGetFBConfig(display, fbcfg, GLX.GLX_TRANSPARENT_RED_VALUE,  tmp, 0);
+        res.setTransparentRedValue(tmp[0]==GLX.GLX_DONT_CARE?-1:tmp[0]);
+
+        glXGetFBConfig(display, fbcfg, GLX.GLX_TRANSPARENT_GREEN_VALUE,  tmp, 0);
+        res.setTransparentGreenValue(tmp[0]==GLX.GLX_DONT_CARE?-1:tmp[0]);
+
+        glXGetFBConfig(display, fbcfg, GLX.GLX_TRANSPARENT_BLUE_VALUE,  tmp, 0);
+        res.setTransparentBlueValue(tmp[0]==GLX.GLX_DONT_CARE?-1:tmp[0]);
+
+        glXGetFBConfig(display, fbcfg, GLX.GLX_TRANSPARENT_ALPHA_VALUE,  tmp, 0);
+        res.setTransparentAlphaValue(tmp[0]==GLX.GLX_DONT_CARE?-1:tmp[0]);
+    }
+    try { 
+        res.setPbufferFloatingPointBuffers(glXGetFBConfig(display, fbcfg, GLXExt.GLX_FLOAT_COMPONENTS_NV, tmp, 0) != GL.GL_FALSE);
+    } catch (Exception e) {}
+    return res;
+  }
+
+  private static String glXGetFBConfigErrorCode(int err) {
+    switch (err) {
+      case GLX.GLX_NO_EXTENSION:  return "GLX_NO_EXTENSION";
+      case GLX.GLX_BAD_ATTRIBUTE: return "GLX_BAD_ATTRIBUTE";
+      default:                return "Unknown error code " + err;
+    }
+  }
+
+  public static int glXGetFBConfig(long display, long cfg, int attrib, int[] tmp, int tmp_offset) {
+    if (display == 0) {
+      throw new GLException("No display connection");
+    }
+    int res = GLX.glXGetFBConfigAttrib(display, cfg, attrib, tmp, tmp_offset);
+    if (res != 0) {
+      throw new GLException("glXGetFBConfig(0x"+Long.toHexString(attrib)+") failed: error code " + glXGetFBConfigErrorCode(res));
+    }
+    return tmp[tmp_offset];
+  }
+
+  public static int glXFBConfig2FBConfigID(long display, long cfg) {
+      int[] tmpID = new int[1];
+      return glXGetFBConfig(display, cfg, GLX.GLX_FBCONFIG_ID, tmpID, 0);
+  }
+
+  public static long glXFBConfigID2FBConfig(long display, int screen, int id) {
+      int[] attribs = new int[] { GLX.GLX_FBCONFIG_ID, id, 0 };
+      int[] count = { -1 };
+      PointerBuffer fbcfgsL = GLX.glXChooseFBConfigCopied(display, screen, attribs, 0, count, 0);
+      if (fbcfgsL == null || fbcfgsL.limit()<1) {
+          return 0;
+      }
+      return fbcfgsL.get(0);
+  }
+
+  // Visual Info
+
+  public static XVisualInfo XVisualID2XVisualInfo(long display, long visualID) {
+      XVisualInfo res = null;
+      NativeWindowFactory.getDefaultFactory().getToolkitLock().lock();
+      try{
+          int[] count = new int[1];
+          XVisualInfo template = XVisualInfo.create();
+          template.setVisualid(visualID);
+          XVisualInfo[] infos = X11Lib.XGetVisualInfoCopied(display, X11Lib.VisualIDMask, template, count, 0);
+          if (infos == null || infos.length == 0) {
+            return null;
+          }  
+        res = XVisualInfo.create(infos[0]);
+      } finally {
+          NativeWindowFactory.getDefaultFactory().getToolkitLock().unlock();
+      }
+      if (DEBUG) {
+        System.err.println("!!! Fetched XVisualInfo for visual ID 0x" + Long.toHexString(visualID));
+        System.err.println("!!! Resulting XVisualInfo: visualid = 0x" + Long.toHexString(res.getVisualid()));
+      }
+      return res;
+  }
+
+  public static GLCapabilities XVisualInfo2GLCapabilities(GLProfile glp, long display, XVisualInfo info, boolean onscreen, boolean usePBuffer, boolean isMultisampleEnabled) {
+    int[] tmp = new int[1];
+    int val = glXGetConfig(display, info, GLX.GLX_USE_GL, tmp, 0);
+    if (val == 0) {
+      throw new GLException("Visual does not support OpenGL");
+    }
+    val = glXGetConfig(display, info, GLX.GLX_RGBA, tmp, 0);
+    if (val == 0) {
+      throw new GLException("Visual does not support RGBA");
+    }
+    GLCapabilities res = new GLCapabilities(glp);
+    res.setOnscreen      (onscreen);
+    res.setPBuffer       (usePBuffer);
+    res.setDoubleBuffered(glXGetConfig(display, info, GLX.GLX_DOUBLEBUFFER,     tmp, 0) != 0);
+    res.setStereo        (glXGetConfig(display, info, GLX.GLX_STEREO,           tmp, 0) != 0);
+    // Note: use of hardware acceleration is determined by
+    // glXCreateContext, not by the XVisualInfo. Optimistically claim
+    // that all GLCapabilities have the capability to be hardware
+    // accelerated.
+    res.setHardwareAccelerated(true);
+    res.setDepthBits     (glXGetConfig(display, info, GLX.GLX_DEPTH_SIZE,       tmp, 0));
+    res.setStencilBits   (glXGetConfig(display, info, GLX.GLX_STENCIL_SIZE,     tmp, 0));
+    res.setRedBits       (glXGetConfig(display, info, GLX.GLX_RED_SIZE,         tmp, 0));
+    res.setGreenBits     (glXGetConfig(display, info, GLX.GLX_GREEN_SIZE,       tmp, 0));
+    res.setBlueBits      (glXGetConfig(display, info, GLX.GLX_BLUE_SIZE,        tmp, 0));
+    res.setAlphaBits     (glXGetConfig(display, info, GLX.GLX_ALPHA_SIZE,       tmp, 0));
+    res.setAccumRedBits  (glXGetConfig(display, info, GLX.GLX_ACCUM_RED_SIZE,   tmp, 0));
+    res.setAccumGreenBits(glXGetConfig(display, info, GLX.GLX_ACCUM_GREEN_SIZE, tmp, 0));
+    res.setAccumBlueBits (glXGetConfig(display, info, GLX.GLX_ACCUM_BLUE_SIZE,  tmp, 0));
+    res.setAccumAlphaBits(glXGetConfig(display, info, GLX.GLX_ACCUM_ALPHA_SIZE, tmp, 0));
+    if (isMultisampleEnabled) {
+      res.setSampleBuffers(glXGetConfig(display, info, GLX.GLX_SAMPLE_BUFFERS, tmp, 0) != 0);
+      res.setNumSamples   (glXGetConfig(display, info, GLX.GLX_SAMPLES,        tmp, 0));
+    }
+    return res;
+  }
+
+  private static String glXGetConfigErrorCode(int err) {
+    switch (err) {
+      case GLX.GLX_NO_EXTENSION:  return "GLX_NO_EXTENSION";
+      case GLX.GLX_BAD_SCREEN:    return "GLX_BAD_SCREEN";
+      case GLX.GLX_BAD_ATTRIBUTE: return "GLX_BAD_ATTRIBUTE";
+      case GLX.GLX_BAD_VISUAL:    return "GLX_BAD_VISUAL";
+      default:                return "Unknown error code " + err;
+    }
+  }
+
+  public static int glXGetConfig(long display, XVisualInfo info, int attrib, int[] tmp, int tmp_offset) {
+    if (display == 0) {
+      throw new GLException("No display connection");
+    }
+    int res = GLX.glXGetConfig(display, info, attrib, tmp, tmp_offset);
+    if (res != 0) {
+      throw new GLException("glXGetConfig(0x"+Long.toHexString(attrib)+") failed: error code " + glXGetConfigErrorCode(res));
+    }
+    return tmp[tmp_offset];
+  }
+
+  public String toString() {
+    return "X11GLXGraphicsConfiguration["+getScreen()+", visualID 0x" + Long.toHexString(getVisualID()) + ", fbConfigID 0x" + Long.toHexString(fbConfigID) + 
+                                        ",\n\trequested " + getRequestedCapabilities()+
+                                        ",\n\tchosen    " + getChosenCapabilities()+
+                                        "]";
+  }
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXGraphicsConfigurationFactory.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXGraphicsConfigurationFactory.java
new file mode 100644
index 000000000..1ddac9013
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11GLXGraphicsConfigurationFactory.java
@@ -0,0 +1,340 @@
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.x11.glx;
+
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.x11.*;
+import com.sun.nativewindow.impl.NativeWindowFactoryImpl;
+import com.sun.nativewindow.impl.x11.*;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.opengl.impl.x11.glx.*;
+
+import com.jogamp.gluegen.runtime.PointerBuffer;
+
+/** Subclass of GraphicsConfigurationFactory used when non-AWT tookits
+    are used on X11 platforms. Toolkits will likely need to delegate
+    to this one to change the accepted and returned types of the
+    GraphicsDevice and GraphicsConfiguration abstractions. */
+
+public class X11GLXGraphicsConfigurationFactory extends GraphicsConfigurationFactory {
+    protected static final boolean DEBUG = Debug.debug("GraphicsConfiguration");
+
+    public X11GLXGraphicsConfigurationFactory() {
+        GraphicsConfigurationFactory.registerFactory(javax.media.nativewindow.x11.X11GraphicsDevice.class, this);
+    }
+
+    public AbstractGraphicsConfiguration chooseGraphicsConfiguration(Capabilities capabilities,
+                                                                     CapabilitiesChooser chooser,
+                                                                     AbstractGraphicsScreen absScreen) {
+        return chooseGraphicsConfigurationStatic(capabilities, chooser, absScreen);
+    }
+
+    protected static X11GLXGraphicsConfiguration createDefaultGraphicsConfiguration(AbstractGraphicsScreen absScreen, boolean onscreen, boolean usePBuffer) {
+      if (absScreen == null) {
+        throw new IllegalArgumentException("AbstractGraphicsScreen is null");
+      }
+      if (!(absScreen instanceof X11GraphicsScreen)) {
+        throw new IllegalArgumentException("Only X11GraphicsScreen are allowed here");
+      }
+      X11GraphicsScreen x11Screen = (X11GraphicsScreen)absScreen;
+
+      GLProfile glProfile = GLProfile.getDefault();
+      GLCapabilities caps=null;
+      XVisualInfo xvis=null;
+      long fbcfg = 0;
+      int fbid = -1;
+
+      // Utilizing FBConfig
+      //
+      GLCapabilities capsFB = null;
+      long display = x11Screen.getDevice().getHandle();
+      try {
+          NativeWindowFactory.getDefaultFactory().getToolkitLock().lock();
+          X11Lib.XLockDisplay(display);
+          int screen = x11Screen.getIndex();
+          boolean isMultisampleAvailable = GLXUtil.isMultisampleAvailable(display);
+
+          long visID = X11Lib.DefaultVisualID(display, x11Screen.getIndex());
+          xvis = X11GLXGraphicsConfiguration.XVisualID2XVisualInfo(display, visID);
+          caps = X11GLXGraphicsConfiguration.XVisualInfo2GLCapabilities(glProfile, display, xvis, onscreen, usePBuffer, isMultisampleAvailable);
+
+          int[] attribs = X11GLXGraphicsConfiguration.GLCapabilities2AttribList(caps, true, isMultisampleAvailable, display, screen);
+          int[] count = { -1 };
+          PointerBuffer fbcfgsL = GLX.glXChooseFBConfigCopied(display, screen, attribs, 0, count, 0);
+          if (fbcfgsL == null || fbcfgsL.limit()<1) {
+              throw new Exception("Could not fetch FBConfig for "+caps);
+          }
+          fbcfg = fbcfgsL.get(0);
+          capsFB = X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(glProfile, display, fbcfg, true, onscreen, usePBuffer, isMultisampleAvailable);
+
+          fbid = X11GLXGraphicsConfiguration.glXFBConfig2FBConfigID(display, fbcfg);
+
+          xvis = GLX.glXGetVisualFromFBConfigCopied(display, fbcfg);
+          if (xvis==null) {
+            throw new GLException("Error: Choosen FBConfig has no visual");
+          }
+      } catch (Throwable t) {
+      } finally {
+          X11Lib.XUnlockDisplay(display);
+          NativeWindowFactory.getDefaultFactory().getToolkitLock().unlock();
+      }
+
+      return new X11GLXGraphicsConfiguration(x11Screen, (null!=capsFB)?capsFB:caps, caps, null, xvis, fbcfg, fbid);
+    }
+
+    protected static X11GLXGraphicsConfiguration chooseGraphicsConfigurationStatic(Capabilities capabilities,
+                                                                                   CapabilitiesChooser chooser,
+                                                                                   AbstractGraphicsScreen absScreen) {
+        if (absScreen == null) {
+            throw new IllegalArgumentException("AbstractGraphicsScreen is null");
+        }
+        if (!(absScreen instanceof X11GraphicsScreen)) {
+            throw new IllegalArgumentException("Only X11GraphicsScreen are allowed here");
+        }
+        X11GraphicsScreen x11Screen = (X11GraphicsScreen)absScreen;
+
+
+        if (capabilities != null &&
+            !(capabilities instanceof GLCapabilities)) {
+            throw new IllegalArgumentException("This NativeWindowFactory accepts only GLCapabilities objects");
+        }
+
+        if (chooser != null &&
+            !(chooser instanceof GLCapabilitiesChooser)) {
+            throw new IllegalArgumentException("This NativeWindowFactory accepts only GLCapabilitiesChooser objects");
+        }
+
+        if (capabilities == null) {
+            capabilities = new GLCapabilities(null);
+        }
+
+        boolean onscreen = capabilities.isOnscreen();
+        boolean usePBuffer = ((GLCapabilities)capabilities).isPBuffer();
+
+        GLCapabilities caps2 = (GLCapabilities) capabilities.clone();
+        if(!caps2.isOnscreen()) {
+            // OFFSCREEN !DOUBLE_BUFFER
+            caps2.setDoubleBuffered(false);
+        }
+    
+        X11GLXGraphicsConfiguration res;
+        res = chooseGraphicsConfigurationFBConfig((GLCapabilities) caps2,
+                                                  (GLCapabilitiesChooser) chooser,
+                                                  x11Screen);
+        if(null==res) {
+            if(usePBuffer) {
+                throw new GLException("Error: Couldn't create X11GLXGraphicsConfiguration based on FBConfig");
+            }
+            res = chooseGraphicsConfigurationXVisual((GLCapabilities) caps2,
+                                                     (GLCapabilitiesChooser) chooser,
+                                                     x11Screen);
+        }
+        if(null==res) {
+            throw new GLException("Error: Couldn't create X11GLXGraphicsConfiguration");
+        }
+        if(DEBUG) {
+            System.err.println("X11GLXGraphicsConfiguration.chooseGraphicsConfigurationStatic("+x11Screen+","+caps2+"): "+res);
+        }
+        return res;
+    }
+
+    protected static X11GLXGraphicsConfiguration chooseGraphicsConfigurationFBConfig(GLCapabilities capabilities,
+                                                                                     GLCapabilitiesChooser chooser,
+                                                                                     X11GraphicsScreen x11Screen) {
+        int recommendedIndex = -1;
+        GLCapabilities[] caps = null;
+        PointerBuffer fbcfgsL = null;
+        int chosen=-1;
+        int retFBID=-1;
+        XVisualInfo retXVisualInfo = null;
+        GLProfile glProfile = capabilities.getGLProfile();
+        boolean onscreen = capabilities.isOnscreen();
+        boolean usePBuffer = capabilities.isPBuffer();
+
+        // Utilizing FBConfig
+        //
+        AbstractGraphicsDevice absDevice = x11Screen.getDevice();
+        long display = absDevice.getHandle();
+        try {
+            NativeWindowFactory.getDefaultFactory().getToolkitLock().lock();
+            X11Lib.XLockDisplay(display);
+            int screen = x11Screen.getIndex();
+            boolean isMultisampleAvailable = GLXUtil.isMultisampleAvailable(display);
+            int[] attribs = X11GLXGraphicsConfiguration.GLCapabilities2AttribList(capabilities, true, isMultisampleAvailable, display, screen);
+            int[] count = { -1 };
+
+            fbcfgsL = GLX.glXChooseFBConfigCopied(display, screen, attribs, 0, count, 0);
+            if (fbcfgsL == null || fbcfgsL.limit()<1) {
+                if(DEBUG) {
+                    System.err.println("X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: Failed glXChooseFBConfig ("+x11Screen+","+capabilities+"): "+fbcfgsL+", "+count[0]);
+                }
+                return null;
+            }
+            if( !X11GLXGraphicsConfiguration.GLXFBConfigValid( display, fbcfgsL.get(0) ) ) {
+                if(DEBUG) {
+                    System.err.println("X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: Failed - GLX FBConfig invalid: ("+x11Screen+","+capabilities+"): "+fbcfgsL+", fbcfg: 0x"+Long.toHexString(fbcfgsL.get(0)));
+                }
+                return null;
+            }
+            recommendedIndex = 0; // 1st match is always recommended ..
+            caps = new GLCapabilities[fbcfgsL.limit()];
+            for (int i = 0; i < fbcfgsL.limit(); i++) {
+                caps[i] = X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(glProfile, display, fbcfgsL.get(i), 
+                                                                                 false, onscreen, usePBuffer, isMultisampleAvailable);
+            }
+
+            if(null==chooser) {
+                chosen = recommendedIndex;
+            } else {
+                try {
+                  chosen = chooser.chooseCapabilities(capabilities, caps, recommendedIndex);
+                } catch (NativeWindowException e) {
+                  if(DEBUG) {
+                      e.printStackTrace();
+                  }
+                  chosen = -1;
+                }
+            }
+            if (chosen < 0) {
+              // keep on going ..
+              if(DEBUG) {
+                  System.err.println("X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig Failed .. unable to choose config, using first");
+              }
+              chosen = 0; // default ..
+            } else if (chosen >= caps.length) {
+                throw new GLException("GLCapabilitiesChooser specified invalid index (expected 0.." + (caps.length - 1) + ")");
+            }
+
+            retFBID = X11GLXGraphicsConfiguration.glXFBConfig2FBConfigID(display, fbcfgsL.get(chosen));
+
+            retXVisualInfo = GLX.glXGetVisualFromFBConfigCopied(display, fbcfgsL.get(chosen));
+            if (retXVisualInfo==null) {
+                if(DEBUG) {
+                    System.err.println("X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: Failed glXGetVisualFromFBConfig ("+x11Screen+", "+fbcfgsL.get(chosen) +" (Continue: "+(false==caps[chosen].isOnscreen())+"):\n\t"+caps[chosen]);
+                }
+                if(caps[chosen].isOnscreen()) {
+                    // Onscreen drawables shall have a XVisual ..
+                    return null;
+                }
+            }
+        } finally {
+            X11Lib.XUnlockDisplay(display);
+            NativeWindowFactory.getDefaultFactory().getToolkitLock().unlock();
+        }
+
+        return new X11GLXGraphicsConfiguration(x11Screen, caps[chosen], capabilities, chooser, retXVisualInfo, fbcfgsL.get(chosen), retFBID);
+    }
+
+    protected static X11GLXGraphicsConfiguration chooseGraphicsConfigurationXVisual(GLCapabilities capabilities,
+                                                                                    GLCapabilitiesChooser chooser,
+                                                                                    X11GraphicsScreen x11Screen) {
+        if (chooser == null) {
+            chooser = new DefaultGLCapabilitiesChooser();
+        }
+
+        // Until we have a rock-solid visual selection algorithm written
+        // in pure Java, we're going to provide the underlying window
+        // system's selection to the chooser as a hint
+
+        GLProfile glProfile = capabilities.getGLProfile();
+        boolean onscreen = capabilities.isOnscreen();
+        GLCapabilities[] caps = null;
+        int recommendedIndex = -1;
+        XVisualInfo retXVisualInfo = null;
+        int chosen=-1;
+
+        AbstractGraphicsDevice absDevice = x11Screen.getDevice();
+        long display = absDevice.getHandle();
+        try {
+            NativeWindowFactory.getDefaultFactory().getToolkitLock().lock();
+            X11Lib.XLockDisplay(display);
+            int screen = x11Screen.getIndex();
+            boolean isMultisampleAvailable = GLXUtil.isMultisampleAvailable(display);
+            int[] attribs = X11GLXGraphicsConfiguration.GLCapabilities2AttribList(capabilities, false, isMultisampleAvailable, display, screen);
+            XVisualInfo[] infos = null;
+
+            XVisualInfo recommendedVis = GLX.glXChooseVisualCopied(display, screen, attribs, 0);
+            if (DEBUG) {
+                System.err.print("!!! glXChooseVisual recommended ");
+                if (recommendedVis == null) {
+                    System.err.println("null visual");
+                } else {
+                    System.err.println("visual id 0x" + Long.toHexString(recommendedVis.getVisualid()));
+                }
+            }
+            int[] count = new int[1];
+            XVisualInfo template = XVisualInfo.create();
+            template.setScreen(screen);
+            infos = X11Lib.XGetVisualInfoCopied(display, X11Lib.VisualScreenMask, template, count, 0);
+            if (infos == null || infos.length<1) {
+                throw new GLException("Error while enumerating available XVisualInfos");
+            }
+            caps = new GLCapabilities[infos.length];
+            for (int i = 0; i < infos.length; i++) {
+                caps[i] = X11GLXGraphicsConfiguration.XVisualInfo2GLCapabilities(glProfile, display, infos[i], onscreen, false, isMultisampleAvailable);
+                // Attempt to find the visual chosen by glXChooseVisual
+                if (recommendedVis != null && recommendedVis.getVisualid() == infos[i].getVisualid()) {
+                    recommendedIndex = i;
+                }
+            }
+            try {
+              chosen = chooser.chooseCapabilities(capabilities, caps, recommendedIndex);
+            } catch (NativeWindowException e) {
+              if(DEBUG) {
+                  e.printStackTrace();
+              }
+              chosen = -1;
+            }
+            if (chosen < 0) {
+              // keep on going ..
+              if(DEBUG) {
+                  System.err.println("X11GLXGraphicsConfiguration.chooseGraphicsConfigurationXVisual Failed .. unable to choose config, using first");
+              }
+              chosen = 0; // default ..
+            } else if (chosen >= caps.length) {
+                throw new GLException("GLCapabilitiesChooser specified invalid index (expected 0.." + (caps.length - 1) + ")");
+            }
+            if (infos[chosen] == null) {
+                throw new GLException("GLCapabilitiesChooser chose an invalid visual");
+            }
+            retXVisualInfo = XVisualInfo.create(infos[chosen]);
+        } finally {
+            X11Lib.XUnlockDisplay(display);
+            NativeWindowFactory.getDefaultFactory().getToolkitLock().unlock();
+        }
+        return new X11GLXGraphicsConfiguration(x11Screen, caps[chosen], capabilities, chooser, retXVisualInfo, 0, -1);
+    }
+}
+
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11OffscreenGLXContext.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11OffscreenGLXContext.java
new file mode 100644
index 000000000..306a711bd
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11OffscreenGLXContext.java
@@ -0,0 +1,77 @@
+/*
+ * 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 com.jogamp.opengl.impl.x11.glx;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.opengl.impl.x11.*;
+
+public class X11OffscreenGLXContext extends X11GLXContext {
+  private X11OffscreenGLXDrawable drawable;
+
+  public X11OffscreenGLXContext(X11OffscreenGLXDrawable drawable,
+                               GLContext shareWith) {
+    super(drawable, shareWith);
+    this.drawable = drawable;
+  }
+
+  public int getOffscreenContextPixelDataType() {
+    GL gl = getGL();
+    return gl.isGL2()?GL2.GL_UNSIGNED_INT_8_8_8_8_REV:GL.GL_UNSIGNED_SHORT_5_5_5_1;
+  }
+  
+  public int getOffscreenContextReadBuffer() {
+    GLCapabilities caps = (GLCapabilities)drawable.getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration().getChosenCapabilities();
+    if (caps.getDoubleBuffered()) {
+      return GL.GL_BACK;
+    }
+    return GL.GL_FRONT;
+  }
+
+  public boolean offscreenImageNeedsVerticalFlip() {
+    // There doesn't seem to be a way to do this in the construction
+    // of the Pixmap or GLXPixmap
+    return true;
+  }
+
+  protected void create() {
+    createContext(false);
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11OffscreenGLXDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11OffscreenGLXDrawable.java
new file mode 100644
index 000000000..7d866a200
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11OffscreenGLXDrawable.java
@@ -0,0 +1,150 @@
+/*
+ * 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 com.jogamp.opengl.impl.x11.glx;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.x11.*;
+
+public class X11OffscreenGLXDrawable extends X11GLXDrawable {
+  private long pixmap;
+
+  protected X11OffscreenGLXDrawable(GLDrawableFactory factory, NativeWindow target) {
+    super(factory, target, true);
+    create();
+  }
+
+  protected void setRealizedImpl() {
+    if(realized) {
+        create();
+    } else {
+        destroy();
+    }
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    return new X11OffscreenGLXContext(this, shareWith);
+  }
+  
+  private void create() {
+    NativeWindow nw = getNativeWindow();
+    X11GLXGraphicsConfiguration config = (X11GLXGraphicsConfiguration) nw.getGraphicsConfiguration().getNativeGraphicsConfiguration();
+    XVisualInfo vis = config.getXVisualInfo();
+    int bitsPerPixel = vis.getDepth();
+    AbstractGraphicsScreen aScreen = config.getScreen();
+    AbstractGraphicsDevice aDevice = aScreen.getDevice();
+    long dpy = aDevice.getHandle();
+    int screen = aScreen.getIndex();
+
+    getFactoryImpl().lockToolkit();
+    try {
+      X11Lib.XLockDisplay(dpy);
+      pixmap = X11Lib.XCreatePixmap(dpy, (int) X11Lib.RootWindow(dpy, screen), 
+                                    component.getWidth(), component.getHeight(), bitsPerPixel);
+      if (pixmap == 0) {
+        throw new GLException("XCreatePixmap failed");
+      }
+      long drawable = GLX.glXCreateGLXPixmap(dpy, vis, pixmap);
+      if (drawable == 0) {
+        X11Lib.XFreePixmap(dpy, pixmap);
+        pixmap = 0;
+        throw new GLException("glXCreateGLXPixmap failed");
+      }
+      ((SurfaceChangeable)nw).setSurfaceHandle(drawable);
+      if (DEBUG) {
+        System.err.println("Created pixmap " + toHexString(pixmap) +
+                           ", GLXPixmap " + toHexString(drawable) +
+                           ", display " + toHexString(dpy));
+      }
+    } finally {
+      X11Lib.XUnlockDisplay(dpy);
+      getFactoryImpl().unlockToolkit();
+    }
+  }
+
+  public void destroy() {
+    if (pixmap == 0) return;
+
+    NativeWindow nw = getNativeWindow();
+    long display = nw.getDisplayHandle();
+    try {
+      getFactoryImpl().lockToolkit();
+      X11Lib.XLockDisplay(display);
+
+      long drawable = nw.getSurfaceHandle();
+      if (DEBUG) {
+        System.err.println("Destroying pixmap " + toHexString(pixmap) +
+                           ", GLXPixmap " + toHexString(drawable) +
+                           ", display " + toHexString(display));
+      }
+
+      // Must destroy pixmap and GLXPixmap
+
+      if (DEBUG) {
+        long cur = GLX.glXGetCurrentContext();
+        if (cur != 0) {
+          System.err.println("WARNING: found context " + toHexString(cur) + " current during pixmap destruction");
+        }
+      }
+
+      // FIXME: workaround for crashes on NVidia hardware when
+      // destroying pixmap (no context is current at the point of the
+      // crash, at least from the point of view of
+      // glXGetCurrentContext)
+      GLX.glXMakeCurrent(display, 0, 0);
+
+      GLX.glXDestroyGLXPixmap(display, drawable);
+      X11Lib.XFreePixmap(display, pixmap);
+      drawable = 0;
+      pixmap = 0;
+      display = 0;
+      ((SurfaceChangeable)nw).setSurfaceHandle(0);
+    } finally {
+      X11Lib.XUnlockDisplay(display);
+      getFactoryImpl().unlockToolkit();
+    }
+  }
+  protected void swapBuffersImpl() {
+    if(DEBUG) {
+        System.err.println("unhandled swapBuffersImpl() called for: "+this);
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11OnscreenGLXContext.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11OnscreenGLXContext.java
new file mode 100644
index 000000000..c89a5efd5
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11OnscreenGLXContext.java
@@ -0,0 +1,68 @@
+/*
+ * 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 com.jogamp.opengl.impl.x11.glx;
+
+import java.util.*;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.opengl.impl.x11.*;
+
+public class X11OnscreenGLXContext extends X11GLXContext {
+  // This indicates whether the context we have created is indirect
+  // and therefore requires the toolkit to be locked around all GL
+  // calls rather than just all GLX calls
+  protected boolean isIndirect;
+
+  public X11OnscreenGLXContext(X11OnscreenGLXDrawable drawable,
+                              GLContext shareWith) {
+    super(drawable, shareWith);
+  }
+  
+  public boolean isOptimizable() {
+    return super.isOptimizable() && !isIndirect;
+  }
+
+  protected void create() {
+    createContext(true);
+    isIndirect = !GLX.glXIsDirect(drawable.getNativeWindow().getDisplayHandle(), context);
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11OnscreenGLXDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11OnscreenGLXDrawable.java
new file mode 100644
index 000000000..43468b858
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11OnscreenGLXDrawable.java
@@ -0,0 +1,64 @@
+/*
+ * 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 com.jogamp.opengl.impl.x11.glx;
+
+import javax.media.nativewindow.*;
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.opengl.impl.x11.*;
+
+public class X11OnscreenGLXDrawable extends X11GLXDrawable {
+  protected X11OnscreenGLXDrawable(GLDrawableFactory factory, NativeWindow component) {
+    super(factory, component, false);
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    return new X11OnscreenGLXContext(this, shareWith);
+  }
+
+  public int getWidth() {
+    return component.getWidth();
+  }
+
+  public int getHeight() {
+    return component.getHeight();
+  }
+
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11PbufferGLXContext.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11PbufferGLXContext.java
new file mode 100644
index 000000000..e0993abc3
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11PbufferGLXContext.java
@@ -0,0 +1,100 @@
+/*
+ * 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 com.jogamp.opengl.impl.x11.glx;
+
+import javax.media.opengl.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.opengl.impl.x11.*;
+
+public class X11PbufferGLXContext extends X11GLXContext {
+  private X11PbufferGLXDrawable drawable;
+
+  public X11PbufferGLXContext(X11PbufferGLXDrawable drawable,
+                             GLContext shareWith) {
+    super(drawable, shareWith);
+    this.drawable = drawable;
+  }
+
+  public void bindPbufferToTexture() {
+    // FIXME: figure out how to implement this
+    throw new GLException("Not yet implemented");
+  }
+
+  public void releasePbufferFromTexture() {
+    // FIXME: figure out how to implement this
+    throw new GLException("Not yet implemented");
+  }
+
+
+  public int getFloatingPointMode() {
+    return drawable.getFloatingPointMode();
+  }
+
+  protected void create() {
+    if (DEBUG) {
+      System.err.println("Creating context for pbuffer " + drawable.getWidth() +
+                         " x " + drawable.getHeight());
+    }
+
+    // Create a gl context for the p-buffer.
+    X11GLXContext other = (X11GLXContext) GLContextShareSet.getShareContext(this);
+    long share = 0;
+    if (other != null) {
+      share = other.getContext();
+      if (share == 0) {
+        throw new GLException("GLContextShareSet returned an invalid OpenGL context");
+      }
+    }
+    X11GLXGraphicsConfiguration config = (X11GLXGraphicsConfiguration)
+        getGLDrawable().getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+
+    context = GLX.glXCreateNewContext(drawable.getNativeWindow().getDisplayHandle(), 
+                                      config.getFBConfig(), GLX.GLX_RGBA_TYPE, share, true);
+    if (context == 0) {
+      throw new GLException("pbuffer creation error: glXCreateNewContext() failed");
+    }
+    GLContextShareSet.contextCreated(this);
+
+    if (DEBUG) {
+      System.err.println("Created context for pbuffer " + drawable.getWidth() +
+                         " x " + drawable.getHeight());
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11PbufferGLXDrawable.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11PbufferGLXDrawable.java
new file mode 100644
index 000000000..3e012225e
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/X11PbufferGLXDrawable.java
@@ -0,0 +1,157 @@
+/*
+ * 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 com.jogamp.opengl.impl.x11.glx;
+
+import javax.media.opengl.*;
+import javax.media.nativewindow.*;
+import com.jogamp.opengl.impl.*;
+import com.jogamp.opengl.impl.x11.glx.*;
+import com.sun.nativewindow.impl.x11.*;
+
+public class X11PbufferGLXDrawable extends X11GLXDrawable {
+  protected X11PbufferGLXDrawable(GLDrawableFactory factory, NativeWindow target) {
+                                  /* GLCapabilities caps, 
+                                  GLCapabilitiesChooser chooser,
+                                  int width, int height */
+    super(factory, target, true);
+
+    if (DEBUG) {
+        System.out.println("Pbuffer config: " + getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration());
+    }
+
+    createPbuffer();
+
+    if (DEBUG) {
+        System.err.println("Created pbuffer " + this);
+    }
+  }
+
+  protected void setRealizedImpl() {
+    if(realized) {
+        createPbuffer();
+    } else {
+        destroy();
+    }
+  }
+
+  public GLContext createContext(GLContext shareWith) {
+    return new X11PbufferGLXContext(this, shareWith);
+  }
+
+  public void destroy() {
+    getFactoryImpl().lockToolkit();
+    try {
+        NativeWindow nw = getNativeWindow();
+        if (nw.getSurfaceHandle() != 0) {
+          GLX.glXDestroyPbuffer(nw.getDisplayHandle(), nw.getSurfaceHandle());
+        }
+        ((SurfaceChangeable)nw).setSurfaceHandle(0);
+    } finally {
+        getFactoryImpl().unlockToolkit();
+    }
+  }
+
+  private void createPbuffer() {
+    getFactoryImpl().lockToolkit();
+    try {
+      X11GLXGraphicsConfiguration config = (X11GLXGraphicsConfiguration) getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+      AbstractGraphicsScreen aScreen = config.getScreen();
+      AbstractGraphicsDevice aDevice = aScreen.getDevice();
+      long display = aDevice.getHandle();
+      int screen = aScreen.getIndex();
+
+      if (display==0) {
+        throw new GLException("Null display");
+      }
+
+      NativeWindow nw = getNativeWindow();
+    
+      GLCapabilities capabilities = (GLCapabilities)config.getChosenCapabilities();
+
+      if (capabilities.getPbufferRenderToTexture()) {
+        throw new GLException("Render-to-texture pbuffers not supported yet on X11");
+      }
+
+      if (capabilities.getPbufferRenderToTextureRectangle()) {
+        throw new GLException("Render-to-texture-rectangle pbuffers not supported yet on X11");
+      }
+
+      // Create the p-buffer.
+      int niattribs = 0;
+      int[] iattributes = new int[5];
+
+      iattributes[niattribs++] = GLX.GLX_PBUFFER_WIDTH;
+      iattributes[niattribs++] = nw.getWidth();
+      iattributes[niattribs++] = GLX.GLX_PBUFFER_HEIGHT;
+      iattributes[niattribs++] = nw.getHeight();
+      iattributes[niattribs++] = 0;
+
+      long pbuffer = GLX.glXCreatePbuffer(display, config.getFBConfig(), iattributes, 0);
+      if (pbuffer == 0) {
+        // FIXME: query X error code for detail error message
+        throw new GLException("pbuffer creation error: glXCreatePbuffer() failed");
+      }
+
+      // Set up instance variables
+      ((SurfaceChangeable)nw).setSurfaceHandle(pbuffer);
+      
+      // Determine the actual width and height we were able to create.
+      int[] tmp = new int[1];
+      GLX.glXQueryDrawable(display, pbuffer, GLX.GLX_WIDTH, tmp, 0);
+      int width = tmp[0];
+      GLX.glXQueryDrawable(display, pbuffer, GLX.GLX_HEIGHT, tmp, 0);
+      int height = tmp[0];
+      ((SurfaceChangeable)nw).setSize(width, height);
+    } finally {
+      getFactoryImpl().unlockToolkit();
+    }
+  }
+
+  public int getFloatingPointMode() {
+    // Floating-point pbuffers currently require NVidia hardware on X11
+    return GLPbuffer.NV_FLOAT;
+  }
+
+  protected void swapBuffersImpl() {
+    if(DEBUG) {
+        System.err.println("unhandled swapBuffersImpl() called for: "+this);
+    }
+  }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/awt/X11AWTGLXGraphicsConfigurationFactory.java b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/awt/X11AWTGLXGraphicsConfigurationFactory.java
new file mode 100644
index 000000000..3b2c8f541
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/impl/x11/glx/awt/X11AWTGLXGraphicsConfigurationFactory.java
@@ -0,0 +1,150 @@
+/*
+ * 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.
+ */
+
+package com.jogamp.opengl.impl.x11.glx.awt;
+
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsDevice;
+import java.awt.GraphicsEnvironment;
+import javax.media.nativewindow.*;
+import javax.media.nativewindow.x11.*;
+import javax.media.nativewindow.awt.*;
+import javax.media.opengl.*;
+import javax.media.opengl.awt.*;
+
+import com.jogamp.opengl.impl.*;
+import com.sun.nativewindow.impl.jawt.*;
+import com.sun.nativewindow.impl.jawt.x11.*;
+import com.sun.nativewindow.impl.x11.*;
+import com.jogamp.opengl.impl.x11.*;
+import com.jogamp.opengl.impl.x11.glx.*;
+
+public class X11AWTGLXGraphicsConfigurationFactory extends GraphicsConfigurationFactory {
+    protected static final boolean DEBUG = Debug.debug("GraphicsConfiguration");
+
+    public X11AWTGLXGraphicsConfigurationFactory() {
+        GraphicsConfigurationFactory.registerFactory(javax.media.nativewindow.awt.AWTGraphicsDevice.class, this);
+    }
+
+    public AbstractGraphicsConfiguration chooseGraphicsConfiguration(Capabilities capabilities,
+                                                                     CapabilitiesChooser chooser,
+                                                                     AbstractGraphicsScreen absScreen) {
+        GraphicsDevice device = null;
+        if (absScreen != null &&
+            !(absScreen instanceof AWTGraphicsScreen)) {
+            throw new IllegalArgumentException("This GraphicsConfigurationFactory accepts only AWTGraphicsScreen objects");
+        }
+
+        if(null==absScreen) {
+            absScreen = AWTGraphicsScreen.createScreenDevice(-1);
+        }
+        AWTGraphicsScreen awtScreen = (AWTGraphicsScreen) absScreen;
+        device = ((AWTGraphicsDevice)awtScreen.getDevice()).getGraphicsDevice();
+
+        if (capabilities != null &&
+            !(capabilities instanceof GLCapabilities)) {
+            throw new IllegalArgumentException("This GraphicsConfigurationFactory accepts only GLCapabilities objects");
+        }
+
+        if (chooser != null &&
+            !(chooser instanceof GLCapabilitiesChooser)) {
+            throw new IllegalArgumentException("This GraphicsConfigurationFactory accepts only GLCapabilitiesChooser objects");
+        }
+
+        if(DEBUG) {
+            System.err.println("X11AWTGLXGraphicsConfigurationFactory: got "+absScreen);
+        }
+        
+        GraphicsConfiguration gc;
+        X11GraphicsConfiguration x11Config;
+
+        // Need the lock here, since it could be an AWT owned display connection
+        NativeWindowFactory.getDefaultFactory().getToolkitLock().lock();
+        try {
+            long displayHandle = X11SunJDKReflection.graphicsDeviceGetDisplay(device);
+            if(0==displayHandle) {
+                displayHandle = X11Util.getThreadLocalDefaultDisplay();
+                if(DEBUG) {
+                    System.err.println("X11AWTGLXGraphicsConfigurationFactory: using a thread local X11 display");
+                }
+            } else {
+                if(DEBUG) {
+                    System.err.println("X11AWTGLXGraphicsConfigurationFactory: using AWT X11 display 0x"+Long.toHexString(displayHandle));
+                }
+            }
+            ((AWTGraphicsDevice)awtScreen.getDevice()).setHandle(displayHandle);
+            X11GraphicsDevice x11Device = new X11GraphicsDevice(displayHandle);
+
+            X11GraphicsScreen x11Screen = new X11GraphicsScreen(x11Device, awtScreen.getIndex());
+            if(DEBUG) {
+                System.err.println("X11AWTGLXGraphicsConfigurationFactory: made "+x11Screen);
+            }
+
+            gc = device.getDefaultConfiguration();
+            AWTGraphicsConfiguration.setupCapabilitiesRGBABits(capabilities, gc);
+            if(DEBUG) {
+                System.err.println("AWT Colormodel compatible: "+capabilities);
+            }
+
+            x11Config = (X11GraphicsConfiguration)
+                GraphicsConfigurationFactory.getFactory(x11Device).chooseGraphicsConfiguration(capabilities,
+                                                                                               chooser,
+                                                                                               x11Screen);
+            if (x11Config == null) {
+                throw new GLException("Unable to choose a GraphicsConfiguration: "+capabilities+",\n\t"+chooser+"\n\t"+x11Screen);
+            }
+
+            long visualID = x11Config.getVisualID();
+            // Now figure out which GraphicsConfiguration corresponds to this
+            // visual by matching the visual ID
+            GraphicsConfiguration[] configs = device.getConfigurations();
+            for (int i = 0; i < configs.length; i++) {
+                GraphicsConfiguration config = configs[i];
+                if (config != null) {
+                    if (X11SunJDKReflection.graphicsConfigurationGetVisualID(config) == visualID) {
+                        return new AWTGraphicsConfiguration(awtScreen, x11Config.getChosenCapabilities(), x11Config.getRequestedCapabilities(), 
+                                                            config, x11Config);
+                    }
+                }
+            }
+        } finally {
+            NativeWindowFactory.getDefaultFactory().getToolkitLock().unlock();
+        }
+        // Either we weren't able to reflectively introspect on the
+        // X11GraphicsConfig or something went wrong in the steps above;
+        // Let's take the default configuration as used on Windows and MacOSX then ..
+        if(DEBUG) {
+            System.err.println("!!! Using default configuration");
+        }
+        return new AWTGraphicsConfiguration(awtScreen, x11Config.getChosenCapabilities(), x11Config.getRequestedCapabilities(), gc, x11Config);
+    }
+}