MacOSXCGLContext Offscreen Layer: Throw exception in case drawable is not realized or texture size is invalid.

1 files changed, 5 insertions, 2 deletions

diff --git a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLContext.java b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLContext.java
index 166876b24..77da2650f 100644
--- a/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLContext.java
+++ b/src/jogl/classes/jogamp/opengl/macosx/cgl/MacOSXCGLContext.java
@@ -477,9 +477,12 @@ public abstract class MacOSXCGLContext extends GLContextImpl
                   texHeight = drawable.getHeight();                  
               }              
               nsOpenGLLayer = CGL.createNSOpenGLLayer(ctx, nsOpenGLLayerPFmt, drawable.getHandle(), fixedCaps.isBackgroundOpaque(), texWidth, texHeight);
+              if(0>=texWidth || 0>=texHeight || !drawable.isRealized()) {
+                  throw new GLException("Drawable not realized yet or invalid texture size, texSize "+texWidth+"x"+texHeight+", "+drawable);
+              }
               if (DEBUG) {
-                  System.err.println("NS create nsOpenGLLayer "+toHexString(nsOpenGLLayer));
-              }              
+                  System.err.println("NS create nsOpenGLLayer "+toHexString(nsOpenGLLayer)+", texSize "+texWidth+"x"+texHeight+", "+drawable);
+              }
               backingLayerHost.attachSurfaceLayer(nsOpenGLLayer);
           }
         } finally {