Fix On-/Offscreen and PBuffer.

Demos are working again:
    demos.jrefract.JRefract
        - X11, Win32, OSX

    -Dsun.java2d.opengl=true  demos.jrefract.JRefract
        - X11, Win32

    demos.readbuffer.Main [-GL2,-GL2ES1] -test 0 demos.es1.RedSquare
        - X11, Win32, OSX, EGL

    demos.readbuffer.Main [-GL2,-GL2ES1] -test [12] demos.es1.RedSquare
        - X11, Win32
        - OSX not, because of the missing feature of
          attaching a read surface.
        - EGL not, because the emulation I used didn't support
          attaching a read surface. Emulation bug .. probably ..

MacOSXWindowSystemInterface.m createContext():
    - Verify if passed surface handle _is_ a view,
      now it could be a pbuffer etc .. handle as well.

Cleanup GLDrawableImpl.setRealized(boolean realized)
    - Calls setRealizedImpl() (implementation) now,
      and only if new stated differs ..

    - setRealizedImpl() fixed for:
        MacOSXPbufferCGLDrawable:    recreate/destroy
        WindowsOffscreenWGLDrawable: recreate/destroy
        WindowsPbufferWGLDrawable:   no-recreate/destroy
        X11OffscreenGLXDrawable:     recreate/destroy
        X11PbufferGLXDrawable:       recreate/destroy

WindowsWGLContext:
    - wglMakeContextCurrent(): uses isFunctionAvailable ..
    - create():
        Uses WGL.MakeCurrent() and releases the created context,
        due to unavailable MakeContextCurrent extensions
        before updating the procaddress tables.

16 files changed, 115 insertions, 43 deletions

diff --git a/src/jogl/classes/com/sun/opengl/impl/GLDrawableFactoryImpl.java b/src/jogl/classes/com/sun/opengl/impl/GLDrawableFactoryImpl.java
index aa775c3ae..ceef07727 100644
--- a/src/jogl/classes/com/sun/opengl/impl/GLDrawableFactoryImpl.java
+++ b/src/jogl/classes/com/sun/opengl/impl/GLDrawableFactoryImpl.java
@@ -173,6 +173,15 @@ public abstract class GLDrawableFactoryImpl extends GLDrawableFactory {
     super();
   }
 
+  protected void maybeDoSingleThreadedWorkaround(Runnable action) {
+    if (Threading.isSingleThreaded() &&
+        !Threading.isOpenGLThread()) {
+      Threading.invokeOnOpenGLThread(action);
+    } else {
+      action.run();
+    }
+  }
+
   /**
    * Returns the sole GLDrawableFactoryImpl instance.
    *
diff --git a/src/jogl/classes/com/sun/opengl/impl/GLDrawableImpl.java b/src/jogl/classes/com/sun/opengl/impl/GLDrawableImpl.java
index 865abe09f..befee170f 100644
--- a/src/jogl/classes/com/sun/opengl/impl/GLDrawableImpl.java
+++ b/src/jogl/classes/com/sun/opengl/impl/GLDrawableImpl.java
@@ -112,8 +112,17 @@ public abstract class GLDrawableImpl implements GLDrawable {
   }
 
   public void setRealized(boolean realized) {
-    this.realized = 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;
diff --git a/src/jogl/classes/com/sun/opengl/impl/egl/EGLDrawable.java b/src/jogl/classes/com/sun/opengl/impl/egl/EGLDrawable.java
index f109c9497..dd801e4e2 100755
--- a/src/jogl/classes/com/sun/opengl/impl/egl/EGLDrawable.java
+++ b/src/jogl/classes/com/sun/opengl/impl/egl/EGLDrawable.java
@@ -97,9 +97,7 @@ public abstract class EGLDrawable extends GLDrawableImpl {
         }
     }
 
-    public void setRealized(boolean realized) {
-        super.setRealized(realized);
-
+    protected void setRealizedImpl() {
         if (realized) {
             if ( NativeWindow.LOCK_SURFACE_NOT_READY == lockSurface() ) {
                 throw new GLException("Couldn't lock surface");
diff --git a/src/jogl/classes/com/sun/opengl/impl/macosx/cgl/MacOSXCGLDrawable.java b/src/jogl/classes/com/sun/opengl/impl/macosx/cgl/MacOSXCGLDrawable.java
index 662c2ba78..b417668da 100644
--- a/src/jogl/classes/com/sun/opengl/impl/macosx/cgl/MacOSXCGLDrawable.java
+++ b/src/jogl/classes/com/sun/opengl/impl/macosx/cgl/MacOSXCGLDrawable.java
@@ -82,9 +82,7 @@ public abstract class MacOSXCGLDrawable extends GLDrawableImpl {
     super(factory, comp, realized);
  }
 
-  public void setRealized(boolean realized) {
-    super.setRealized(realized);
-
+  protected void setRealizedImpl() {
     if(realized) {
         if( NativeWindow.LOCK_SURFACE_NOT_READY == lockSurface() ) {
             throw new GLException("Couldn't lock surface");
diff --git a/src/jogl/classes/com/sun/opengl/impl/macosx/cgl/MacOSXCGLDrawableFactory.java b/src/jogl/classes/com/sun/opengl/impl/macosx/cgl/MacOSXCGLDrawableFactory.java
index f8c15b7f2..be18ee2da 100644
--- a/src/jogl/classes/com/sun/opengl/impl/macosx/cgl/MacOSXCGLDrawableFactory.java
+++ b/src/jogl/classes/com/sun/opengl/impl/macosx/cgl/MacOSXCGLDrawableFactory.java
@@ -77,7 +77,20 @@ public class MacOSXCGLDrawableFactory extends GLDrawableFactoryImpl implements D
     return true;
   }
 
-  protected GLDrawableImpl createGLPbufferDrawableImpl(NativeWindow target) {
+  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);
   }
 
diff --git a/src/jogl/classes/com/sun/opengl/impl/macosx/cgl/MacOSXPbufferCGLDrawable.java b/src/jogl/classes/com/sun/opengl/impl/macosx/cgl/MacOSXPbufferCGLDrawable.java
index c90e5d6bd..f57952b7c 100644
--- a/src/jogl/classes/com/sun/opengl/impl/macosx/cgl/MacOSXPbufferCGLDrawable.java
+++ b/src/jogl/classes/com/sun/opengl/impl/macosx/cgl/MacOSXPbufferCGLDrawable.java
@@ -71,14 +71,24 @@ public class MacOSXPbufferCGLDrawable extends MacOSXCGLDrawable {
     }
   }
 
+  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);
       }
diff --git a/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsOffscreenWGLDrawable.java b/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsOffscreenWGLDrawable.java
index 35fbcc6f5..f254748d1 100644
--- a/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsOffscreenWGLDrawable.java
+++ b/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsOffscreenWGLDrawable.java
@@ -53,6 +53,14 @@ public class WindowsOffscreenWGLDrawable extends WindowsWGLDrawable {
     create();
   }
 
+  protected void setRealizedImpl() {
+    if(realized) {
+        create();
+    } else {
+        destroy();
+    }
+  }
+
   public GLContext createContext(GLContext shareWith) {
     return new WindowsOffscreenWGLContext(this, shareWith);
   }
diff --git a/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsPbufferWGLDrawable.java b/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsPbufferWGLDrawable.java
index 798eafad3..2bc6660fb 100644
--- a/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsPbufferWGLDrawable.java
+++ b/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsPbufferWGLDrawable.java
@@ -67,6 +67,14 @@ public class WindowsPbufferWGLDrawable extends WindowsWGLDrawable {
     }
   }
 
+  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);
   }
diff --git a/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsWGLContext.java b/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsWGLContext.java
index b07cd6046..418336e3f 100644
--- a/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsWGLContext.java
+++ b/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsWGLContext.java
@@ -95,9 +95,12 @@ public class WindowsWGLContext extends GLContextImpl {
   public boolean wglMakeContextCurrent(long hDrawDC, long hReadDC, long hglrc) {
     WGLExt wglExt = getWGLExt();
     if (!wglMakeContextCurrentInitialized) {
-      wglMakeContextCurrentARBAvailable = (WGL.wglGetProcAddress("wglMakeContextCurrentARB") != 0);
-      wglMakeContextCurrentEXTAvailable = (WGL.wglGetProcAddress("wglMakeContextCurrentEXT") != 0);
+      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);
@@ -163,7 +166,7 @@ public class WindowsWGLContext extends GLContextImpl {
     if (temp_hglrc == 0) {
       throw new GLException("Unable to create temp OpenGL context for device context " + toHexString(drawable.getNativeWindow().getSurfaceHandle()));
     } else {
-        if (!wglMakeContextCurrent(drawable.getNativeWindow().getSurfaceHandle(), drawableRead.getNativeWindow().getSurfaceHandle(), temp_hglrc)) {
+        if (!WGL.wglMakeCurrent(drawable.getNativeWindow().getSurfaceHandle(), temp_hglrc)) {
             throw new GLException("Error making temp context current: 0x" + Integer.toHexString(WGL.GetLastError()));
         }
         setGLFunctionAvailability(true);
@@ -171,7 +174,7 @@ public class WindowsWGLContext extends GLContextImpl {
         if( !isFunctionAvailable("wglCreateContextAttribsARB") ||
             !isExtensionAvailable("WGL_ARB_create_context") ) {
             if(glCaps.getGLProfile().isGL3()) {
-              wglMakeContextCurrent(0, 0, 0);
+              WGL.wglMakeCurrent(0, 0);
               WGL.wglDeleteContext(temp_hglrc);
               throw new GLException("Unable to create OpenGL >= 3.1 context (no WGL_ARB_create_context)");
             }
@@ -230,25 +233,26 @@ public class WindowsWGLContext extends GLContextImpl {
 
             if(0==hglrc) {
                 if(glCaps.getGLProfile().isGL3()) {
-                  wglMakeContextCurrent(0, 0, 0);
+                  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 (!wglMakeContextCurrent(drawable.getNativeWindow().getSurfaceHandle(), drawableRead.getNativeWindow().getSurfaceHandle(), 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 ..
-                wglMakeContextCurrent(0, 0, 0);
+                WGL.wglMakeCurrent(0, 0);
                 WGL.wglDeleteContext(temp_hglrc);
 
-                if (!wglMakeContextCurrent(drawable.getNativeWindow().getSurfaceHandle(), drawableRead.getNativeWindow().getSurfaceHandle(), hglrc)) {
+                if (!WGL.wglMakeCurrent(drawable.getNativeWindow().getSurfaceHandle(), hglrc)) {
                     throw new GLException("Error making new context current: 0x" + Integer.toHexString(WGL.GetLastError()));
                 }
                 updateGLProcAddressTable();
@@ -266,6 +270,7 @@ public class WindowsWGLContext extends GLContextImpl {
         }
     }
     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));
     }
diff --git a/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsWGLDrawable.java b/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsWGLDrawable.java
index 01e259665..91604d18e 100644
--- a/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsWGLDrawable.java
+++ b/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsWGLDrawable.java
@@ -60,9 +60,7 @@ public abstract class WindowsWGLDrawable extends GLDrawableImpl {
     super(factory, comp, realized);
   }
 
-  public void setRealized(boolean realized) {
-    super.setRealized(realized);
-
+  protected void setRealizedImpl() {
     if(!realized) {
         return; // nothing todo ..
     }
diff --git a/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsWGLDrawableFactory.java b/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsWGLDrawableFactory.java
index af65861b9..e37179191 100644
--- a/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsWGLDrawableFactory.java
+++ b/src/jogl/classes/com/sun/opengl/impl/windows/wgl/WindowsWGLDrawableFactory.java
@@ -222,15 +222,6 @@ public class WindowsWGLDrawableFactory extends GLDrawableFactoryImpl implements
     return detail;
   }
 
-  private void maybeDoSingleThreadedWorkaround(Runnable action) {
-    if (Threading.isSingleThreaded() &&
-        !Threading.isOpenGLThread()) {
-      Threading.invokeOnOpenGLThread(action);
-    } else {
-      action.run();
-    }
-  }
-
   public boolean canCreateContextOnJava2DSurface() {
     return false;
   }
diff --git a/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11GLXDrawable.java b/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11GLXDrawable.java
index 1abc36c58..c2a1987cc 100644
--- a/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11GLXDrawable.java
+++ b/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11GLXDrawable.java
@@ -54,9 +54,7 @@ public abstract class X11GLXDrawable extends GLDrawableImpl {
     return (X11GLXDrawableFactory) getFactoryImpl() ;
   }
 
-  public void setRealized(boolean realized) {
-    super.setRealized(realized);
-
+  protected void setRealizedImpl() {
     if(!realized) {
         return; // nothing to do 
     }
diff --git a/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11GLXDrawableFactory.java b/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11GLXDrawableFactory.java
index f6c911c63..ebf650ae4 100644
--- a/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11GLXDrawableFactory.java
+++ b/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11GLXDrawableFactory.java
@@ -110,10 +110,24 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl implements Dyna
     return canCreateGLPbuffer;
   }
 
-  protected GLDrawableImpl createGLPbufferDrawableImpl(NativeWindow target) {
+  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));
@@ -147,15 +161,6 @@ public class X11GLXDrawableFactory extends GLDrawableFactoryImpl implements Dyna
     return res;
   }
 
-  private void maybeDoSingleThreadedWorkaround(Runnable action) {
-    if (Threading.isSingleThreaded() &&
-        !Threading.isOpenGLThread()) {
-      Threading.invokeOnOpenGLThread(action);
-    } else {
-      action.run();
-    }
-  }
-
   public boolean canCreateContextOnJava2DSurface() {
     return false;
   }
diff --git a/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11OffscreenGLXDrawable.java b/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11OffscreenGLXDrawable.java
index 98eca44d9..c8b8851f8 100644
--- a/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11OffscreenGLXDrawable.java
+++ b/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11OffscreenGLXDrawable.java
@@ -52,6 +52,14 @@ public class X11OffscreenGLXDrawable extends X11GLXDrawable {
     create();
   }
 
+  protected void setRealizedImpl() {
+    if(realized) {
+        create();
+    } else {
+        destroy();
+    }
+  }
+
   public GLContext createContext(GLContext shareWith) {
     return new X11OffscreenGLXContext(this, shareWith);
   }
@@ -123,6 +131,7 @@ public class X11OffscreenGLXDrawable extends X11GLXDrawable {
       drawable = 0;
       pixmap = 0;
       display = 0;
+      ((SurfaceChangeable)nw).setSurfaceHandle(0);
     } finally {
       getFactoryImpl().unlockToolkit();
     }
diff --git a/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11PbufferGLXDrawable.java b/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11PbufferGLXDrawable.java
index ddb96ae6b..e87ef54ac 100644
--- a/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11PbufferGLXDrawable.java
+++ b/src/jogl/classes/com/sun/opengl/impl/x11/glx/X11PbufferGLXDrawable.java
@@ -63,6 +63,14 @@ public class X11PbufferGLXDrawable extends X11GLXDrawable {
     }
   }
 
+  protected void setRealizedImpl() {
+    if(realized) {
+        createPbuffer();
+    } else {
+        destroy();
+    }
+  }
+
   public GLContext createContext(GLContext shareWith) {
     return new X11PbufferGLXContext(this, shareWith);
   }
@@ -74,7 +82,7 @@ public class X11PbufferGLXDrawable extends X11GLXDrawable {
         if (nw.getSurfaceHandle() != 0) {
           GLX.glXDestroyPbuffer(nw.getDisplayHandle(), nw.getSurfaceHandle());
         }
-        nw.invalidate();
+        ((SurfaceChangeable)nw).setSurfaceHandle(0);
     } finally {
         getFactoryImpl().unlockToolkit();
     }
diff --git a/src/jogl/native/macosx/MacOSXWindowSystemInterface.m b/src/jogl/native/macosx/MacOSXWindowSystemInterface.m
index 5405ad4ee..cbfea6d71 100644
--- a/src/jogl/native/macosx/MacOSXWindowSystemInterface.m
+++ b/src/jogl/native/macosx/MacOSXWindowSystemInterface.m
@@ -476,7 +476,12 @@ void* createContext(void* shareContext,
 	
 	NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
 
-	NSView *nsView = (NSView*)view;
+	NSView *nsView = NULL;
+    NSObject *nsObj = (NSObject*) view;
+
+    if( nsObj != NULL && [nsObj isKindOfClass:[NSView class]] ) {
+        nsView = (NSView*)nsObj;
+    }
 
 	if (nsView != NULL)
 	{