Bug 599 - FBObject / Offscreen Support - Part 1

- New FBObject implementation handling FBO and it's attachments  *** API CHANGE: Util -> Core ***
  while it's size and sample-count can be reconfigured on the fly.
    - com.jogamp.opengl.util.FBObject -> com.jogamp.opengl.FBObject
    - agnostic to texture unit
    - separate attachments using OO hierarchy reflecting FBO
    - handling MSAA and blitting
    - no FBO destruction for reconfig (attach/detach)

- New GLFBODrawableImpl impl. an FBObject based GLDrawable
   - Instantiated by a dummy native surface (onscreen and invisible)
     hooked up to a dummy GLDrawable, which is the delegation for context creation.

   - Utilizies ProxySurface.UpstreamSurfaceHook for dummy surface
     avoiding specialization for native platforms.

   - TODO: Allow to utilize common surface interface as a
     dummy-surface to supporting API seperation of
     windowing/GL. The latter allows impl. of createGLDrawable(NativeSurface)
     with FBO.

- New OffscreenAutoDrawable (extends GLAutoDrawableDelegate)
  for all offscreen drawables. Shall replace GLPbuffer.

- New GLCapabilities*.isFBO() / setFBO(boolean) to request FBO offscreen,
  similar to isPBuffer(). Rule: if both are requested, FBO shall be favored.

- GLContext adds raw FBO availability query (min. FBO avail),
  FBObject contains fine grained queries (TODO: Move parts to GLContext for efficiency).

- Add framebuffer tracking, allowing fast querying:
  - GLBase/GLContext:
      public int getBoundFramebuffer(int target);
      public int getDefaultDrawFramebuffer();
      public int getDefaultReadFramebuffer();

  - GLContextImpl
      public final void setBoundFramebuffer(int target, int framebufferName)
      .. called by GL impl bind framebuffer

- GL: getDefaultDrawFramebuffer(), getDefaultReadFramebuffer()
  Adding default framebuffer queries being issued by
  GL.glBindFramebuffer(target, 0) w/ a default framebuffer, o.e. zero.
  This allows a transparent use of a custom FBO even in case the applications
  attempts to reset FBO to zero.
    Value flow: GL <- GLContext <- GLDrawable,

- GLCapabilities handle fbo/pbuffer seperate, don't disable the other

- GLContext/GL track read/write framebuffer to be queried by FBObject
  to determine whether to bind/unbind  a framebuffer

- Test cases for multiple FBO w/ and w/o MSAA

Other Features:

- New interface ProxySurface.UpstreamSurfaceHook,
  allowing to hook an upstream surface of unknown type
  providing lifecycle and information (size, ..) callbacks.
  Used for all new dummy NativeSurface impl and SWT GLCanvas.

  - GLContext -> GLDrawable propagation context/drawable lifecycle
    via ProxySurface.UpstreamSurfaceHook allowing dynamic resources
    to react (create, init, ..)
    - contextRealized()
    - contextMadeCurrent()

- SurfaceChangeable -> MutableSurface
  currently only contains setting the surface handle.

  TODO: May need to move ProxySurface.UpstreamSurfaceHook -> MutableSurface.UpstreamSurfaceHook,
        allowing other impl. classes (NEWT OffscreenWindow) to utilize the new
        upstream hookup mechanism - will allow FBO/Dummy window to work.

- SWT GLCanvas using ProxySurface.UpstreamSurfaceHook for proper size
  propagation.

- New GLAutoDrawable::getUpstreamWidget(), allowing GLEventListener
  to fetch the owning Java side UI element (NEWT, SWT, AWT, ..).

- GLDrawableFactory: Removed createOffscreenSurface() - unused and not GL related

- EGLDrawableFactory handles device/profile avail. mapping
  while actually creating context/drawable.
  This allows us to learn whether the ES context is software/hardware as well as FBO avail.

- EGLDrawable: Removed secret buckets of EGL configs :)
  Employ native surface (X11, WGL, ..) to EGL 'mapping' in
  EGLDrawableFactory utilizing new EGLUpstreamSurfaceHook (implements ProxySurface.UpstreamSurfaceHook).

Other Bugs:

- Add CTX_OPTION_DEBUG to ctx/extension cache key since only a debug ctx
  may expose the ARB debug capability.
  This bug caused lack of ARB/AMD debug functionality.

- Fix GLProfile deadlock (debug mode, w/ EGL/ES, no X11),
  dump availability information _after_ lock.

- ImmModeSink draw(): Use GL's glDrawElements(..), don't cast for GL2ES1.
  Fixes use for GL2ES2.

- Fix KeyEvent.getKeyChar() comment (-> only stable for keyTyped(..))

Misc:

- Refined alot of API doc

- New GLExtensions holds commonly used GL extension strings,
  allows better referencing and usage lookup.

- Move GL (interface) decl. to GLBase

- GLBuffers: Cleanup API doc (format, types)

- TextureIO: Add PAM and PPM static suffix identifier

- GLCapabilities getNumSamples() returns 0 if sampleBuffers is disabled, this seems to be more natural.

- finalized a lot

10 files changed, 156 insertions, 194 deletions

diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11DummyGLXDrawable.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11DummyGLXDrawable.java
deleted file mode 100644
index 8914e2db9..000000000
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11DummyGLXDrawable.java
+++ /dev/null
@@ -1,102 +0,0 @@
-/**
- * Copyright 2010 JogAmp Community. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification, are
- * permitted provided that the following conditions are met:
- *
- *    1. Redistributions of source code must retain the above copyright notice, this list of
- *       conditions and the following disclaimer.
- *
- *    2. Redistributions in binary form must reproduce the above copyright notice, this list
- *       of conditions and the following disclaimer in the documentation and/or other materials
- *       provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * The views and conclusions contained in the software and documentation are those of the
- * authors and should not be interpreted as representing official policies, either expressed
- * or implied, of JogAmp Community.
- */
-
-package jogamp.opengl.x11.glx;
-
-import javax.media.opengl.GLCapabilities;
-import javax.media.opengl.GLCapabilitiesImmutable;
-import javax.media.opengl.GLDrawableFactory;
-import javax.media.opengl.GLProfile;
-
-import jogamp.nativewindow.x11.X11Lib;
-
-import com.jogamp.nativewindow.WrappedSurface;
-import com.jogamp.nativewindow.x11.X11GraphicsDevice;
-import com.jogamp.nativewindow.x11.X11GraphicsScreen;
-
-public class X11DummyGLXDrawable extends X11OnscreenGLXDrawable {
-  private static final int f_dim = 64;
-  private long dummyWindow = 0;
-
-  /**
-   * Due to the ATI Bug https://bugzilla.mozilla.org/show_bug.cgi?id=486277,
-   * we cannot switch the Display as we please,
-   * hence we reuse the target's screen configuration.
-   */
-  public X11DummyGLXDrawable(X11GraphicsScreen screen, GLDrawableFactory factory, GLCapabilitiesImmutable caps) {
-    super(factory,
-          new WrappedSurface(X11GLXGraphicsConfigurationFactory.chooseGraphicsConfigurationStatic(
-            caps, caps, null, screen)));
-    this.realized = true;
-
-    WrappedSurface ns = (WrappedSurface) getNativeSurface();
-    X11GLXGraphicsConfiguration config = (X11GLXGraphicsConfiguration)ns.getGraphicsConfiguration();
-
-    X11GraphicsDevice device = (X11GraphicsDevice) screen.getDevice();
-    long dpy = device.getHandle();
-    int scrn = screen.getIndex();
-    int visualID = config.getXVisualID();
-
-    dummyWindow = X11Lib.CreateDummyWindow(dpy, scrn, visualID, f_dim, f_dim);
-    ns.setSurfaceHandle( dummyWindow );
-    ns.surfaceSizeChanged(f_dim, f_dim);
-
-    updateHandle();
-  }
-
-  public static X11DummyGLXDrawable create(X11GraphicsScreen screen, GLDrawableFactory factory, GLProfile glp) {
-      GLCapabilities caps = new GLCapabilities(glp);
-      return new X11DummyGLXDrawable(screen, factory, caps);
-  }
-
-  public void setSize(int width, int height) {
-  }
-
-  @Override
-  public int getWidth() {
-    return 1;
-  }
-
-  @Override
-  public int getHeight() {
-    return 1;
-  }
-  
-  
-  @Override
-  protected void setRealizedImpl() {
-    super.setRealizedImpl();
-    if(!realized) {
-        if(0!=dummyWindow) {
-            destroyHandle();
-            X11GLXGraphicsConfiguration config = (X11GLXGraphicsConfiguration)getNativeSurface().getGraphicsConfiguration();
-            X11Lib.DestroyDummyWindow(config.getScreen().getDevice().getHandle(), dummyWindow);
-        }
-    }
-  }
-}
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11ExternalGLXContext.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11ExternalGLXContext.java
index 53776386c..b847363e0 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11ExternalGLXContext.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11ExternalGLXContext.java
@@ -76,8 +76,15 @@ public class X11ExternalGLXContext extends X11GLXContext {
     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];
+    
+    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, ctx, GLX.GLX_SCREEN, val, 0);
     X11GraphicsScreen x11Screen = (X11GraphicsScreen) X11GraphicsScreen.createScreenDevice(display, val[0], false);
 
@@ -97,8 +104,7 @@ public class X11ExternalGLXContext extends X11GLXContext {
         cfg = X11GLXGraphicsConfiguration.create(glp, x11Screen, val[0]);
     }
 
-    WrappedSurface ns = new WrappedSurface(cfg);
-    ns.setSurfaceHandle(drawable);
+    final WrappedSurface ns = new WrappedSurface(cfg, drawable, w, h, null);
     return new X11ExternalGLXContext(new Drawable(factory, ns), ctx);
   }
 
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11ExternalGLXDrawable.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11ExternalGLXDrawable.java
index 3fabe7a13..8652e2d4a 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11ExternalGLXDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11ExternalGLXDrawable.java
@@ -87,10 +87,7 @@ public class X11ExternalGLXDrawable extends X11GLXDrawable {
         System.err.println("X11ExternalGLXDrawable: WARNING: forcing GLX_RGBA_TYPE for newly created contexts (current 0x"+Integer.toHexString(val[0])+")");
       }
     }
-    WrappedSurface ns = new WrappedSurface(cfg);
-    ns.setSurfaceHandle(drawable);
-    ns.surfaceSizeChanged(w, h);
-    return new X11ExternalGLXDrawable(factory, ns);
+    return new X11ExternalGLXDrawable(factory, new WrappedSurface(cfg, drawable, w, h, null));
   }
 
   @Override
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java
index 0afadc677..e6b74a769 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXContext.java
@@ -61,6 +61,7 @@ import jogamp.opengl.GLDrawableImpl;
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.gluegen.runtime.ProcAddressTable;
 import com.jogamp.gluegen.runtime.opengl.GLProcAddressResolver;
+import com.jogamp.opengl.GLExtensions;
 
 public abstract class X11GLXContext extends GLContextImpl {
   private static final Map<String, String> functionNameMap;
@@ -83,8 +84,8 @@ public abstract class X11GLXContext extends GLContextImpl {
     functionNameMap.put("glFreeMemoryNV", "glXFreeMemoryNV");
 
     extensionNameMap = new HashMap<String, String>();
-    extensionNameMap.put("GL_ARB_pbuffer",      "GLX_SGIX_pbuffer");
-    extensionNameMap.put("GL_ARB_pixel_format", "GLX_SGIX_pbuffer"); // good enough
+    extensionNameMap.put(GLExtensions.ARB_pbuffer,      X11GLXDrawableFactory.GLX_SGIX_pbuffer);
+    extensionNameMap.put(GLExtensions.ARB_pixel_format, X11GLXDrawableFactory.GLX_SGIX_pbuffer); // good enough
   }
 
   X11GLXContext(GLDrawableImpl drawable,
@@ -508,8 +509,8 @@ public abstract class X11GLXContext extends GLContextImpl {
 
   @Override
   public boolean isExtensionAvailable(String glExtensionName) {
-    if (glExtensionName.equals("GL_ARB_pbuffer") ||
-        glExtensionName.equals("GL_ARB_pixel_format")) {
+    if (glExtensionName.equals(GLExtensions.ARB_pbuffer) ||
+        glExtensionName.equals(GLExtensions.ARB_pixel_format)) {
       return getGLDrawable().getFactory().canCreateGLPbuffer(
           drawable.getNativeSurface().getGraphicsConfiguration().getScreen().getDevice() );
     }
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java
index 9a563bdb8..8ffbf3951 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXDrawableFactory.java
@@ -49,6 +49,8 @@ import javax.media.nativewindow.AbstractGraphicsScreen;
 import javax.media.nativewindow.NativeSurface;
 import javax.media.nativewindow.NativeWindowFactory;
 import javax.media.nativewindow.ProxySurface;
+import javax.media.nativewindow.ProxySurface.UpstreamSurfaceHook;
+import javax.media.opengl.GLCapabilities;
 import javax.media.opengl.GLCapabilitiesChooser;
 import javax.media.opengl.GLCapabilitiesImmutable;
 import javax.media.opengl.GLContext;
@@ -64,6 +66,7 @@ import jogamp.opengl.GLContextImpl;
 import jogamp.opengl.GLDrawableFactoryImpl;
 import jogamp.opengl.GLDrawableImpl;
 import jogamp.opengl.GLDynamicLookupHelper;
+import jogamp.opengl.GLGraphicsConfigurationUtil;
 import jogamp.opengl.SharedResourceRunner;
 
 import com.jogamp.common.util.VersionNumber;
@@ -79,6 +82,8 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl {
   public static final VersionNumber versionOneThree = new VersionNumber(1, 3, 0);
   public static final VersionNumber versionOneFour = new VersionNumber(1, 4, 0);
 
+  static final String GLX_SGIX_pbuffer = "GLX_SGIX_pbuffer";
+  
   private static DesktopGLDynamicLookupHelper x11GLXDynamicLookupHelper = null;
 
   public X11GLXDrawableFactory() {
@@ -153,8 +158,8 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl {
   static class SharedResource implements SharedResourceRunner.Resource {
       X11GraphicsDevice device;
       X11GraphicsScreen screen;
-      X11DummyGLXDrawable drawable;
-      X11GLXContext context;
+      GLDrawableImpl drawable;
+      GLContextImpl context;
       String glXServerVendorName;
       boolean isGLXServerVendorATI;
       boolean isGLXServerVendorNVIDIA;
@@ -164,7 +169,7 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl {
       boolean glXMultisampleAvailable;
 
       SharedResource(X11GraphicsDevice dev, X11GraphicsScreen scrn,
-                     X11DummyGLXDrawable draw, X11GLXContext ctx,
+                     GLDrawableImpl draw, GLContextImpl ctx,
                      VersionNumber glXServerVer, String glXServerVendor, boolean glXServerMultisampleAvail) {
           device = dev;
           screen = scrn;
@@ -224,13 +229,15 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl {
 
         @Override
         public SharedResourceRunner.Resource createSharedResource(String connection) {
-            X11GraphicsDevice sharedDevice =
+            final X11GraphicsDevice sharedDevice =
                     new X11GraphicsDevice(X11Util.openDisplay(connection), AbstractGraphicsDevice.DEFAULT_UNIT,
-                                          true); // own non-shared display connection, no locking
+                                          true); // own non-shared display connection, w/ locking
                     // new X11GraphicsDevice(X11Util.openDisplay(connection), AbstractGraphicsDevice.DEFAULT_UNIT,
-                    //                       NativeWindowFactory.getNullToolkitLock(), true); // own non-shared display connection, no locking
+                    //                       NativeWindowFactory.getNullToolkitLock(), true); // own non-shared display connection, w/o locking
             sharedDevice.lock();
             try {
+                final X11GraphicsScreen sharedScreen = new X11GraphicsScreen(sharedDevice, 0);
+                
                 if(!GLXUtil.isGLXAvailableOnServer(sharedDevice)) {
                     throw new GLException("GLX not available on device/server: "+sharedDevice);
                 }
@@ -242,20 +249,20 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl {
                     X11Util.setMarkAllDisplaysUnclosable(true);
                     X11Util.markDisplayUncloseable(sharedDevice.getHandle());
                 }
-                X11GraphicsScreen sharedScreen = new X11GraphicsScreen(sharedDevice, 0);
-
-                GLProfile glp = GLProfile.get(sharedDevice, GLProfile.GL_PROFILE_LIST_MIN_DESKTOP, false);
+                
+                final GLProfile glp = GLProfile.get(sharedDevice, GLProfile.GL_PROFILE_LIST_MIN_DESKTOP, false);
                 if (null == glp) {
                     throw new GLException("Couldn't get default GLProfile for device: "+sharedDevice);
                 }
-                X11DummyGLXDrawable sharedDrawable = X11DummyGLXDrawable.create(sharedScreen, X11GLXDrawableFactory.this, glp);
-                if (null == sharedDrawable) {
-                    throw new GLException("Couldn't create shared drawable for screen: "+sharedScreen+", "+glp);
-                }
-                X11GLXContext sharedContext = (X11GLXContext) sharedDrawable.createContext(null);
+                
+                final GLDrawableImpl sharedDrawable = createOnscreenDrawableImpl(createDummySurfaceImpl(sharedDevice, false, new GLCapabilities(glp), null, 64, 64));
+                sharedDrawable.setRealized(true);
+                
+                final GLContextImpl sharedContext = (GLContextImpl) sharedDrawable.createContext(null);
                 if (null == sharedContext) {
                     throw new GLException("Couldn't create shared context for drawable: "+sharedDrawable);
                 }
+                
                 boolean madeCurrent = false;
                 sharedContext.makeCurrent();
                 try {
@@ -298,7 +305,7 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl {
 
             if (null != sr.context) {
                 // may cause JVM SIGSEGV:
-                sr.context.destroy();
+                sr.context.destroy(); // will also pull the dummy MutuableSurface
                 sr.context = null;
             }
 
@@ -394,7 +401,7 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl {
     if (target == null) {
       throw new IllegalArgumentException("Null target");
     }
-    return new X11OnscreenGLXDrawable(this, target);
+    return new X11OnscreenGLXDrawable(this, target, false);
   }
 
   @Override
@@ -495,40 +502,88 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl {
   }
 
   @Override
-  protected final NativeSurface createOffscreenSurfaceImpl(AbstractGraphicsDevice deviceReq,
-                                                           GLCapabilitiesImmutable capsChosen, GLCapabilitiesImmutable capsRequested,
-                                                           GLCapabilitiesChooser chooser,
-                                                           int width, int height) {
-    if(null == deviceReq) {
-        throw new InternalError("deviceReq is null");
-    }
-    final SharedResourceRunner.Resource sr = sharedResourceRunner.getOrCreateShared(deviceReq);
-    if(null==sr) {
-        throw new InternalError("No SharedResource for: "+deviceReq);
+  protected final ProxySurface createMutableSurfaceImpl(AbstractGraphicsDevice deviceReq, boolean createNewDevice, 
+                                                        GLCapabilitiesImmutable capsChosen,
+                                                        GLCapabilitiesImmutable capsRequested,
+                                                        GLCapabilitiesChooser chooser, int width, int height, UpstreamSurfaceHook lifecycleHook) {
+    final X11GraphicsDevice device;
+    if(createNewDevice) {
+        // Null X11 locking, due to private non-shared Display handle
+        device = new X11GraphicsDevice(X11Util.openDisplay(deviceReq.getConnection()), deviceReq.getUnitID(), NativeWindowFactory.getNullToolkitLock(), true);
+    } else {
+        device = (X11GraphicsDevice)deviceReq;
     }
-    final X11GraphicsScreen sharedScreen = (X11GraphicsScreen) sr.getScreen();
-    final AbstractGraphicsDevice sharedDevice = sharedScreen.getDevice(); // should be same ..
-
-    // create screen/device pair - Null X11 locking, due to private non-shared Display handle
-    final X11GraphicsDevice device = new X11GraphicsDevice(X11Util.openDisplay(sharedDevice.getConnection()), AbstractGraphicsDevice.DEFAULT_UNIT, NativeWindowFactory.getNullToolkitLock(), true);
-    final X11GraphicsScreen screen = new X11GraphicsScreen(device, sharedScreen.getIndex());
-
-    WrappedSurface ns = new WrappedSurface(
-               X11GLXGraphicsConfigurationFactory.chooseGraphicsConfigurationStatic(capsChosen, capsRequested, chooser, screen) );
-    if(ns != null) {
-        ns.surfaceSizeChanged(width, height);
+    final X11GraphicsScreen screen = new X11GraphicsScreen(device, 0);
+    final X11GLXGraphicsConfiguration config = X11GLXGraphicsConfigurationFactory.chooseGraphicsConfigurationStatic(capsChosen, capsRequested, chooser, screen);
+    if(null == config) {
+        throw new GLException("Choosing GraphicsConfiguration failed w/ "+capsChosen+" on "+screen); 
     }
-    return ns;
+    return new WrappedSurface( config, 0, width, height, lifecycleHook);
   }
 
   @Override
-  protected final ProxySurface createProxySurfaceImpl(AbstractGraphicsDevice adevice, long windowHandle, GLCapabilitiesImmutable capsRequested, GLCapabilitiesChooser chooser) {
-    // FIXME device/windowHandle -> screen ?!
-    X11GraphicsDevice device = (X11GraphicsDevice) adevice;
-    X11GraphicsScreen screen = new X11GraphicsScreen(device, 0);
-    X11GLXGraphicsConfiguration cfg = X11GLXGraphicsConfigurationFactory.chooseGraphicsConfigurationStatic(capsRequested, capsRequested, chooser, screen);
-    WrappedSurface ns = new WrappedSurface(cfg, windowHandle);
-    return ns;
+  public final ProxySurface createDummySurfaceImpl(AbstractGraphicsDevice deviceReq, boolean createNewDevice, 
+                                                   GLCapabilitiesImmutable requestedCaps, GLCapabilitiesChooser chooser, int width, int height) {
+    final GLCapabilitiesImmutable chosenCaps = GLGraphicsConfigurationUtil.fixOnscreenGLCapabilities(requestedCaps);
+    return createMutableSurfaceImpl(deviceReq, createNewDevice, chosenCaps, requestedCaps, chooser, width, height, dummySurfaceLifecycleHook); 
+  }  
+  private static final ProxySurface.UpstreamSurfaceHook dummySurfaceLifecycleHook = new ProxySurface.UpstreamSurfaceHook() {
+    @Override
+    public final void create(ProxySurface s) {
+        if( 0 == s.getSurfaceHandle() ) {
+            final X11GLXGraphicsConfiguration cfg = (X11GLXGraphicsConfiguration) s.getGraphicsConfiguration();
+            final X11GraphicsScreen screen = (X11GraphicsScreen) cfg.getScreen();
+            final X11GraphicsDevice device = (X11GraphicsDevice) screen.getDevice();
+            if(0 == device.getHandle()) {
+                device.open();
+                s.setImplBitfield(ProxySurface.OWN_DEVICE);
+            }
+            final long windowHandle = X11Lib.CreateDummyWindow(device.getHandle(), screen.getIndex(), cfg.getXVisualID(), s.getWidth(), s.getHeight());
+            if(0 == windowHandle) {
+                throw new GLException("Creating dummy window failed w/ "+cfg+", "+s.getWidth()+"x"+s.getHeight());
+            }
+            s.setSurfaceHandle(windowHandle);
+            if(DEBUG) {
+                System.err.println("X11GLXDrawableFactory.dummySurfaceLifecycleHook.create: "+s);
+            }
+        }
+    }
+    @Override
+    public final void destroy(ProxySurface s) {
+        if(0 != s.getSurfaceHandle()) {
+            final X11GLXGraphicsConfiguration config = (X11GLXGraphicsConfiguration) s.getGraphicsConfiguration();
+            final X11GraphicsDevice device = (X11GraphicsDevice) config.getScreen().getDevice();
+            X11Lib.DestroyDummyWindow(device.getHandle(), s.getSurfaceHandle());            
+            s.setSurfaceHandle(0);
+            if( 0 != ( ProxySurface.OWN_DEVICE & s.getImplBitfield() ) ) {
+                device.close();
+            }
+            if(DEBUG) {
+                System.err.println("X11GLXDrawableFactory.dummySurfaceLifecycleHook.destroy: "+s);
+            }
+        }
+    }
+    @Override
+    public final int getWidth(ProxySurface s) {
+        return s.initialWidth;
+    }
+    @Override
+    public final int getHeight(ProxySurface s) {
+        return s.initialHeight;
+    }
+    @Override
+    public String toString() {
+       return "X11SurfaceLifecycleHook[]";
+    }
+  };
+  
+  
+  @Override
+  protected final ProxySurface createProxySurfaceImpl(AbstractGraphicsDevice deviceReq, int screenIdx, long windowHandle, GLCapabilitiesImmutable capsRequested, GLCapabilitiesChooser chooser, UpstreamSurfaceHook upstream) {
+    final X11GraphicsDevice device = new X11GraphicsDevice(X11Util.openDisplay(deviceReq.getConnection()), deviceReq.getUnitID(), NativeWindowFactory.getNullToolkitLock(), true);
+    final X11GraphicsScreen screen = new X11GraphicsScreen(device, screenIdx);
+    final X11GLXGraphicsConfiguration cfg = X11GLXGraphicsConfigurationFactory.chooseGraphicsConfigurationStatic(capsRequested, capsRequested, chooser, screen);
+    return new WrappedSurface(cfg, windowHandle, 0, 0, upstream);
   }
 
   @Override
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java
index b54b5150c..b5b80e0b3 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfiguration.java
@@ -36,12 +36,14 @@ package jogamp.opengl.x11.glx;
 import java.util.ArrayList;
 import java.util.List;
 
+import javax.media.nativewindow.AbstractGraphicsDevice;
 import javax.media.nativewindow.GraphicsConfigurationFactory;
 import javax.media.opengl.DefaultGLCapabilitiesChooser;
 import javax.media.opengl.GL;
 import javax.media.opengl.GLCapabilities;
 import javax.media.opengl.GLCapabilitiesChooser;
 import javax.media.opengl.GLCapabilitiesImmutable;
+import javax.media.opengl.GLContext;
 import javax.media.opengl.GLDrawableFactory;
 import javax.media.opengl.GLException;
 import javax.media.opengl.GLProfile;
@@ -67,7 +69,8 @@ public class X11GLXGraphicsConfiguration extends X11GraphicsConfiguration implem
     }
 
     static X11GLXGraphicsConfiguration create(GLProfile glp, X11GraphicsScreen x11Screen, int fbcfgID) {
-      final long display = x11Screen.getDevice().getHandle();
+      final AbstractGraphicsDevice device = x11Screen.getDevice();
+      final long display = device.getHandle();
       if(0==display) {
           throw new GLException("Display null of "+x11Screen);
       }
@@ -80,7 +83,7 @@ public class X11GLXGraphicsConfiguration extends X11GraphicsConfiguration implem
         glp = GLProfile.getDefault(x11Screen.getDevice());
       }
       final X11GLXDrawableFactory factory = (X11GLXDrawableFactory) GLDrawableFactory.getDesktopFactory();
-      final X11GLCapabilities caps = GLXFBConfig2GLCapabilities(glp, display, fbcfg, true, true, true, factory.isGLXMultisampleAvailable(x11Screen.getDevice()));
+      final X11GLCapabilities caps = GLXFBConfig2GLCapabilities(glp, device, fbcfg, true, true, true, factory.isGLXMultisampleAvailable(device));
       if(null==caps) {
           throw new GLException("GLCapabilities null of "+toHexString(fbcfg));
       }
@@ -233,11 +236,11 @@ public class X11GLXGraphicsConfiguration extends X11GraphicsConfiguration implem
     return true;
   }
 
-  static int FBCfgDrawableTypeBits(final long display, final long fbcfg) {
+  static int FBCfgDrawableTypeBits(final AbstractGraphicsDevice device, GLProfile glp, final long fbcfg) {
     int val = 0;
 
     int[] tmp = new int[1];
-    int fbtype = glXGetFBConfig(display, fbcfg, GLX.GLX_DRAWABLE_TYPE, tmp, 0);
+    int fbtype = glXGetFBConfig(device.getHandle(), fbcfg, GLX.GLX_DRAWABLE_TYPE, tmp, 0);
 
     if ( 0 != ( fbtype & GLX.GLX_WINDOW_BIT ) ) {
         val |= GLGraphicsConfigurationUtil.WINDOW_BIT;
@@ -248,17 +251,20 @@ public class X11GLXGraphicsConfiguration extends X11GraphicsConfiguration implem
     if ( 0 != ( fbtype & GLX.GLX_PBUFFER_BIT ) ) {
         val |= GLGraphicsConfigurationUtil.PBUFFER_BIT;
     }
+    if ( GLContext.isFBOAvailable(device, glp) ) {
+        val |= GLGraphicsConfigurationUtil.FBO_BIT;
+    }
     return val;
   }
 
-  static X11GLCapabilities GLXFBConfig2GLCapabilities(GLProfile glp, long display, long fbcfg,
+  static X11GLCapabilities GLXFBConfig2GLCapabilities(GLProfile glp, AbstractGraphicsDevice device, long fbcfg,
                                                             boolean relaxed, boolean onscreen, boolean usePBuffer,
                                                             boolean isMultisampleAvailable) {
     ArrayList<GLCapabilitiesImmutable> bucket = new ArrayList<GLCapabilitiesImmutable>();
-    final int winattrmask = GLGraphicsConfigurationUtil.getWinAttributeBits(onscreen, usePBuffer);
-    if( GLXFBConfig2GLCapabilities(bucket, glp, display, fbcfg, winattrmask, isMultisampleAvailable) ) {
+    final int winattrmask = GLGraphicsConfigurationUtil.getWinAttributeBits(onscreen, usePBuffer, false);
+    if( GLXFBConfig2GLCapabilities(bucket, glp, device, fbcfg, winattrmask, isMultisampleAvailable) ) {
         return (X11GLCapabilities) bucket.get(0);
-    } else if ( relaxed && GLXFBConfig2GLCapabilities(bucket, glp, display, fbcfg, GLGraphicsConfigurationUtil.ALL_BITS, isMultisampleAvailable) ) {
+    } else if ( relaxed && GLXFBConfig2GLCapabilities(bucket, glp, device, fbcfg, GLGraphicsConfigurationUtil.ALL_BITS, isMultisampleAvailable) ) {
         return (X11GLCapabilities) bucket.get(0);
     }
     return null;
@@ -273,11 +279,12 @@ public class X11GLXGraphicsConfiguration extends X11GraphicsConfiguration implem
   }
 
   static boolean GLXFBConfig2GLCapabilities(List<GLCapabilitiesImmutable> capsBucket,
-                                            GLProfile glp, long display, long fbcfg,
+                                            GLProfile glp, AbstractGraphicsDevice device, long fbcfg,
                                             int winattrmask, boolean isMultisampleAvailable) {
-    final int allDrawableTypeBits = FBCfgDrawableTypeBits(display, fbcfg);
+    final int allDrawableTypeBits = FBCfgDrawableTypeBits(device, glp,  fbcfg);
     int drawableTypeBits = winattrmask & allDrawableTypeBits;
-
+    
+    final long display = device.getHandle(); 
     int fbcfgid = X11GLXGraphicsConfiguration.glXFBConfig2FBConfigID(display, fbcfg);
     XVisualInfo visualInfo = GLX.glXGetVisualFromFBConfig(display, fbcfg);
     if(null == visualInfo) {
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfigurationFactory.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfigurationFactory.java
index 8377d2453..331401c06 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfigurationFactory.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11GLXGraphicsConfigurationFactory.java
@@ -44,6 +44,7 @@ import javax.media.opengl.DefaultGLCapabilitiesChooser;
 import javax.media.opengl.GLCapabilities;
 import javax.media.opengl.GLCapabilitiesChooser;
 import javax.media.opengl.GLCapabilitiesImmutable;
+import javax.media.opengl.GLContext;
 import javax.media.opengl.GLDrawableFactory;
 import javax.media.opengl.GLException;
 import javax.media.opengl.GLProfile;
@@ -161,7 +162,7 @@ public class X11GLXGraphicsConfigurationFactory extends GLGraphicsConfigurationF
             return null;
         }
         for (int i = 0; i < fbcfgsL.limit(); i++) {
-            if( !X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(availableCaps, glProfile, display, fbcfgsL.get(i), GLGraphicsConfigurationUtil.ALL_BITS, isMultisampleAvailable) ) {
+            if( !X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(availableCaps, glProfile, absDevice, fbcfgsL.get(i), GLGraphicsConfigurationUtil.ALL_BITS, isMultisampleAvailable) ) {
                 if(DEBUG) {
                     System.err.println("X11GLXGraphicsConfiguration.getAvailableGLCapabilitiesFBConfig: FBConfig invalid (2): ("+x11Screen+"): fbcfg: "+toHexString(fbcfgsL.get(i)));
                 }
@@ -209,7 +210,7 @@ public class X11GLXGraphicsConfigurationFactory extends GLGraphicsConfigurationF
         X11GraphicsDevice x11Device = (X11GraphicsDevice) x11Screen.getDevice();        
         X11GLXDrawableFactory factory = (X11GLXDrawableFactory) GLDrawableFactory.getDesktopFactory();
 
-        capsChosen = GLGraphicsConfigurationUtil.fixGLCapabilities( capsChosen, factory.canCreateGLPbuffer(x11Device) );
+        capsChosen = GLGraphicsConfigurationUtil.fixGLCapabilities( capsChosen, GLContext.isFBOAvailable(x11Device, capsChosen.getGLProfile()), factory.canCreateGLPbuffer(x11Device) );
         boolean usePBuffer = capsChosen.isPBuffer();
     
         X11GLXGraphicsConfiguration res = null;
@@ -245,7 +246,7 @@ public class X11GLXGraphicsConfigurationFactory extends GLGraphicsConfigurationF
         }
         final X11GLXDrawableFactory factory = (X11GLXDrawableFactory) GLDrawableFactory.getDesktopFactory();
                
-        final X11GLCapabilities caps = X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(glp, display, fbcfg, true, true, true, factory.isGLXMultisampleAvailable(absDevice));
+        final X11GLCapabilities caps = X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(glp, absDevice, fbcfg, true, true, true, factory.isGLXMultisampleAvailable(absDevice));
         return new X11GLXGraphicsConfiguration(x11Screen, caps, caps, new DefaultGLCapabilitiesChooser());
     }
 
@@ -258,6 +259,7 @@ public class X11GLXGraphicsConfigurationFactory extends GLGraphicsConfigurationF
         GLProfile glProfile = capsChosen.getGLProfile();
         boolean onscreen = capsChosen.isOnscreen();
         boolean usePBuffer = capsChosen.isPBuffer();
+        boolean useFBO = capsChosen.isFBO();
 
         // Utilizing FBConfig
         //
@@ -270,13 +272,12 @@ public class X11GLXGraphicsConfigurationFactory extends GLGraphicsConfigurationF
         int[] attribs = X11GLXGraphicsConfiguration.GLCapabilities2AttribList(capsChosen, true, isMultisampleAvailable, display, screen);
         int[] count = { -1 };
         List<GLCapabilitiesImmutable> availableCaps = new ArrayList<GLCapabilitiesImmutable>();
-        final int winattrmask = GLGraphicsConfigurationUtil.getWinAttributeBits(onscreen, usePBuffer);
-
+        final int winattrmask = GLGraphicsConfigurationUtil.getWinAttributeBits(onscreen, usePBuffer, useFBO);
         // 1st choice: get GLCapabilities based on users GLCapabilities setting recommendedIndex as preferred choice
         fbcfgsL = GLX.glXChooseFBConfig(display, screen, attribs, 0, count, 0);
         if (fbcfgsL != null && fbcfgsL.limit()>0) {
             for (int i = 0; i < fbcfgsL.limit(); i++) {
-                if( !X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(availableCaps, glProfile, display, fbcfgsL.get(i), winattrmask, isMultisampleAvailable) ) {
+                if( !X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(availableCaps, glProfile, absDevice, fbcfgsL.get(i), winattrmask, isMultisampleAvailable) ) {
                     if(DEBUG) {
                         System.err.println("X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: FBConfig invalid (1): ("+x11Screen+","+capsChosen+"): fbcfg: "+toHexString(fbcfgsL.get(i)));
                     }
@@ -309,7 +310,7 @@ public class X11GLXGraphicsConfigurationFactory extends GLGraphicsConfigurationF
             }
 
             for (int i = 0; i < fbcfgsL.limit(); i++) {
-                if( !X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(availableCaps, glProfile, display, fbcfgsL.get(i), winattrmask, isMultisampleAvailable) ) {
+                if( !X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(availableCaps, glProfile, absDevice, fbcfgsL.get(i), winattrmask, isMultisampleAvailable) ) {
                     if(DEBUG) {
                         System.err.println("X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: FBConfig invalid (2): ("+x11Screen+"): fbcfg: "+toHexString(fbcfgsL.get(i)));
                     }
@@ -338,7 +339,7 @@ public class X11GLXGraphicsConfigurationFactory extends GLGraphicsConfigurationF
         }
 
         GLProfile glProfile = capsChosen.getGLProfile();
-        final int winattrmask = GLGraphicsConfigurationUtil.getWinAttributeBits(capsChosen.isOnscreen(), false /* pbuffer */);
+        final int winattrmask = GLGraphicsConfigurationUtil.getWinAttributeBits(capsChosen.isOnscreen(), false /* pbuffer */, false);
         List<GLCapabilitiesImmutable> availableCaps = new ArrayList<GLCapabilitiesImmutable>();
         int recommendedIndex = -1;
 
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXDrawable.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXDrawable.java
index 9e22afa6d..363299321 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11OnscreenGLXDrawable.java
@@ -51,10 +51,13 @@ public class X11OnscreenGLXDrawable extends X11GLXDrawable {
   long glXWindow; // GLXWindow, a GLXDrawable representation
   boolean useGLXWindow;
 
-  protected X11OnscreenGLXDrawable(GLDrawableFactory factory, NativeSurface component) {
-    super(factory, component, false);
+  protected X11OnscreenGLXDrawable(GLDrawableFactory factory, NativeSurface component, boolean realized) {
+    super(factory, component, realized);
     glXWindow=0;
     useGLXWindow=false;
+    if(realized) {
+        updateHandle();
+    }
   }
 
   @Override
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11PbufferGLXDrawable.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11PbufferGLXDrawable.java
index cdf81ebd3..e1fe2f27e 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11PbufferGLXDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11PbufferGLXDrawable.java
@@ -43,7 +43,7 @@ package jogamp.opengl.x11.glx;
 import javax.media.nativewindow.AbstractGraphicsDevice;
 import javax.media.nativewindow.AbstractGraphicsScreen;
 import javax.media.nativewindow.NativeSurface;
-import javax.media.nativewindow.SurfaceChangeable;
+import javax.media.nativewindow.MutableSurface;
 import javax.media.opengl.GLCapabilitiesImmutable;
 import javax.media.opengl.GLContext;
 import javax.media.opengl.GLDrawableFactory;
@@ -77,7 +77,7 @@ public class X11PbufferGLXDrawable extends X11GLXDrawable {
     if (ns.getSurfaceHandle() != 0) {
       GLX.glXDestroyPbuffer(ns.getDisplayHandle(), ns.getSurfaceHandle());
     }
-    ((SurfaceChangeable)ns).setSurfaceHandle(0);
+    ((MutableSurface)ns).setSurfaceHandle(0);
   }
 
   private void createPbuffer() {
@@ -108,12 +108,14 @@ public class X11PbufferGLXDrawable extends X11GLXDrawable {
 
       // Create the p-buffer.
       int niattribs = 0;
-      int[] iattributes = new int[5];
+      int[] iattributes = new int[7];
 
       iattributes[niattribs++] = GLX.GLX_PBUFFER_WIDTH;
       iattributes[niattribs++] = ns.getWidth();
       iattributes[niattribs++] = GLX.GLX_PBUFFER_HEIGHT;
       iattributes[niattribs++] = ns.getHeight();
+      iattributes[niattribs++] = GLX.GLX_LARGEST_PBUFFER; // exact
+      iattributes[niattribs++] = 0;
       iattributes[niattribs++] = 0;
 
       long pbuffer = GLX.glXCreatePbuffer(display, config.getFBConfig(), iattributes, 0);
@@ -123,15 +125,7 @@ public class X11PbufferGLXDrawable extends X11GLXDrawable {
       }
 
       // Set up instance variables
-      ((SurfaceChangeable)ns).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)ns).surfaceSizeChanged(width, height);
+      ((MutableSurface)ns).setSurfaceHandle(pbuffer);
 
       if (DEBUG) {
         System.err.println("Created pbuffer " + this);
diff --git a/src/jogl/classes/jogamp/opengl/x11/glx/X11PixmapGLXDrawable.java b/src/jogl/classes/jogamp/opengl/x11/glx/X11PixmapGLXDrawable.java
index 1e7b89828..04627724c 100644
--- a/src/jogl/classes/jogamp/opengl/x11/glx/X11PixmapGLXDrawable.java
+++ b/src/jogl/classes/jogamp/opengl/x11/glx/X11PixmapGLXDrawable.java
@@ -43,7 +43,7 @@ package jogamp.opengl.x11.glx;
 import javax.media.nativewindow.AbstractGraphicsDevice;
 import javax.media.nativewindow.AbstractGraphicsScreen;
 import javax.media.nativewindow.NativeSurface;
-import javax.media.nativewindow.SurfaceChangeable;
+import javax.media.nativewindow.MutableSurface;
 import javax.media.opengl.GLContext;
 import javax.media.opengl.GLDrawableFactory;
 import javax.media.opengl.GLException;
@@ -93,7 +93,7 @@ public class X11PixmapGLXDrawable extends X11GLXDrawable {
         pixmap = 0;
         throw new GLException("glXCreateGLXPixmap failed");
     }
-    ((SurfaceChangeable)ns).setSurfaceHandle(drawable);
+    ((MutableSurface)ns).setSurfaceHandle(drawable);
     if (DEBUG) {
         System.err.println("Created pixmap " + toHexString(pixmap) +
                            ", GLXPixmap " + toHexString(drawable) +
@@ -133,7 +133,7 @@ public class X11PixmapGLXDrawable extends X11GLXDrawable {
     X11Lib.XFreePixmap(display, pixmap);
     drawable = 0;
     pixmap = 0;
-    ((SurfaceChangeable)ns).setSurfaceHandle(0);
+    ((MutableSurface)ns).setSurfaceHandle(0);
     display = 0;
   }
 }