Fix OSX CALayer Bug 690 and Bug 691: Occasional Freeze on CVDisplayLinkStop; Layers and native GL-Context are _not_ Released ; Java Side wait for Main-Thread

- Fix Bug 690: Occasional Freeze on CVDisplayLinkStop
  - NSOpenGLLayer.disableAnimation() shall not claim the renderLock mutex,
    since the CVDisplayLink callback could be waiting for the lock.
    This waiting callback could freeze the call to CVDisplayLinkStop.

- Fix Bug 691: Layers and native GL-Context are _not_ Released
  - Following proper release cycle:

    Context unrealized:
      - JAWTWindow.detachSurfaceLayer() -> OSXUtil.RemoveCASublayer(..)
      - CGL.releaseNSOpenGLLayer(..)

    JAWTWindow.destroy()
      - MacOSXJAWTWindow.UnsetJAWTRootSurfaceLayer(..)
      - OSXUtil.DestroyCALayer(..)

  - 'Magic' CALayer release calls (w/o manual retain beforehand) at:
     - OSXUtil.RemoveCASublayer(..): [subLayer release]
     - MacOSXJAWTWindow.UnsetJAWTRootSurfaceLayer(..): [rootLayer release]
     - OSXUtil.DestroyCALayer(..): [rootLayer release]

  - 'Magic' NSOpenGLLayer's NSOpenGLContext dealloc:
     - [NSOpenGLContext clearDrawable]
     - CGLDestroyContext( [NSOpenGLContext CGLContextObj] )

- Java Side wait for Main-Thread
  - Waiting for the delegated Main-Thread on the Java side eases debugging
    and won't block the Main-Thread in native code.

  - Utilizing this for all CALayer calls

Test case: TestGLCanvasAddRemove01SwingAWT

2 files changed, 9 insertions, 7 deletions

diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
index 8527a0200..007a917a6 100644
--- a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
+++ b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
@@ -205,7 +205,7 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
       }
       try {
           if(DEBUG) {
-            System.err.println("JAWTWindow.attachSurfaceHandle(): 0x"+Long.toHexString(layerHandle) + ", bounds "+bounds);
+            System.err.println("JAWTWindow.attachSurfaceHandle(): "+toHexString(layerHandle) + ", bounds "+bounds);
           }
           attachSurfaceLayerImpl(layerHandle);
           offscreenSurfaceLayer = layerHandle;
@@ -229,7 +229,7 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
       }
       try {
           if(DEBUG) {
-            System.err.println("JAWTWindow.detachSurfaceHandle(): 0x"+Long.toHexString(offscreenSurfaceLayer));
+            System.err.println("JAWTWindow.detachSurfaceHandle(): osh "+toHexString(offscreenSurfaceLayer));
           }
           detachSurfaceLayerImpl(offscreenSurfaceLayer);
           offscreenSurfaceLayer = 0;
@@ -341,7 +341,7 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
                     if(LOCK_SUCCESS == res && drawable_old != drawable) {
                         res = LOCK_SURFACE_CHANGED;
                         if(DEBUG) {
-                            System.err.println("JAWTWindow: surface change 0x"+Long.toHexString(drawable_old)+" -> 0x"+Long.toHexString(drawable));
+                            System.err.println("JAWTWindow: surface change "+toHexString(drawable_old)+" -> "+toHexString(drawable));
                             // Thread.dumpStack();
                         }
                     }
@@ -549,8 +549,8 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
     StringBuilder sb = new StringBuilder();
 
     sb.append("JAWT-Window["+
-                "windowHandle 0x"+Long.toHexString(getWindowHandle())+
-                ", surfaceHandle 0x"+Long.toHexString(getSurfaceHandle())+
+                "windowHandle "+toHexString(getWindowHandle())+
+                ", surfaceHandle "+toHexString(getSurfaceHandle())+
                 ", bounds "+bounds+", insets "+insets+
                 ", shallUseOffscreenLayer "+shallUseOffscreenLayer+", isOffscreenLayerSurface "+isOffscreenLayerSurface);
     if(null!=component) {
@@ -566,4 +566,8 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
 
     return sb.toString();
   }
+  
+  protected final String toHexString(long l) {
+      return "0x"+Long.toHexString(l);
+  }
 }
diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/swt/SWTAccessor.java b/src/nativewindow/classes/com/jogamp/nativewindow/swt/SWTAccessor.java
index 2b49f6745..5479f2495 100644
--- a/src/nativewindow/classes/com/jogamp/nativewindow/swt/SWTAccessor.java
+++ b/src/nativewindow/classes/com/jogamp/nativewindow/swt/SWTAccessor.java
@@ -38,7 +38,6 @@ import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.widgets.Control;
 
 import javax.media.nativewindow.AbstractGraphicsScreen;
-import javax.media.nativewindow.DefaultGraphicsScreen;
 import javax.media.nativewindow.NativeWindowException;
 import javax.media.nativewindow.AbstractGraphicsDevice;
 import javax.media.nativewindow.NativeWindowFactory;
@@ -49,7 +48,6 @@ import com.jogamp.common.util.VersionNumber;
 import com.jogamp.nativewindow.macosx.MacOSXGraphicsDevice;
 import com.jogamp.nativewindow.windows.WindowsGraphicsDevice;
 import com.jogamp.nativewindow.x11.X11GraphicsDevice;
-import com.jogamp.nativewindow.x11.X11GraphicsScreen;
 
 import jogamp.nativewindow.macosx.OSXUtil;
 import jogamp.nativewindow.x11.X11Lib;