2 files changed, 13 insertions, 0 deletions
diff --git a/src/classes/com/sun/opengl/impl/GLContextImpl.java b/src/classes/com/sun/opengl/impl/GLContextImpl.java
index 8e38ec276..8963b2f5e 100644
--- a/src/classes/com/sun/opengl/impl/GLContextImpl.java
+++ b/src/classes/com/sun/opengl/impl/GLContextImpl.java
@@ -97,6 +97,8 @@ public abstract class GLContextImpl extends GLContext {
     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();
@@ -184,6 +186,10 @@ public abstract class GLContextImpl extends GLContext {
 
   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();
   }
diff --git a/src/classes/com/sun/opengl/impl/macosx/MacOSXOnscreenGLContext.java b/src/classes/com/sun/opengl/impl/macosx/MacOSXOnscreenGLContext.java
index dedc5a0ee..e011d271b 100644
--- a/src/classes/com/sun/opengl/impl/macosx/MacOSXOnscreenGLContext.java
+++ b/src/classes/com/sun/opengl/impl/macosx/MacOSXOnscreenGLContext.java
@@ -88,4 +88,11 @@ public class MacOSXOnscreenGLContext extends MacOSXGLContext {
       throw new GLException("Error swapping buffers");
     }
   }
+
+  protected void update() throws GLException {
+    if (nsContext == 0) {
+      throw new GLException("Context not created");
+    }
+    CGL.updateContext(nsContext);
+  }
 }