Fix GLDrawableFactory: Move 'GLContext getOrCreateSharedContext(..)' to non public class GLDrawableFactoryImpl.

Michael Weber's test case (commit e7388512b69979d00e5a213a1b166a1b1726ae0c)
pointed me to the flaw in GLDrawableFactory which exposed a non-public method,
ie. 'getOrCreateSharedContext()'.

This lead to the assumption, that the 'shared' drawable/context of the factory is multi purpose
and may be used for application context sharing - which is not the case.

Changed Michael's test case to use a local shared pbuffer based drawable/context
and made the method non-public, where it belongs.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java b/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java
index 068190cb2..cc0637200 100644
--- a/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java
+++ b/src/jogl/classes/jogamp/opengl/GLDrawableFactoryImpl.java
@@ -81,6 +81,22 @@ public abstract class GLDrawableFactoryImpl extends GLDrawableFactory {
   }
 
   /**
+   * Returns the shared context mapped to the <code>device</code> {@link AbstractGraphicsDevice#getConnection()},
+   * either a pre-existing or newly created, or <code>null</code> if creation failed or not supported.<br>
+   * Creation of the shared context is tried only once.
+   *
+   * @param device which {@link javax.media.nativewindow.AbstractGraphicsDevice#getConnection() connection} denotes the shared the target device, may be <code>null</code> for the platform's default device.
+   */
+  public final GLContext getOrCreateSharedContext(AbstractGraphicsDevice device) {
+      device = validateDevice(device);
+      if(null!=device) {
+        return getOrCreateSharedContextImpl(device);
+      }
+      return null;
+  }
+  protected abstract GLContext getOrCreateSharedContextImpl(AbstractGraphicsDevice device);
+  
+  /**
    * Returns the shared device mapped to the <code>device</code> {@link AbstractGraphicsDevice#getConnection()},
    * either a preexisting or newly created, or <code>null</code> if creation failed or not supported.<br>
    * Creation of the shared context is tried only once.