Fixed crash triggered by Java 3D's JoglPipeline in off-screen

rendering on X11 platforms by watching for destruction of the pbuffer
out from under an application-created context; could do better by
explicitly destroying all application-created contexts in the shared
code for both the GLCanvas and GLPbufferImpl (and probably the
GLJPanel too)


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@881 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 4 insertions, 0 deletions

diff --git a/src/classes/com/sun/opengl/impl/x11/X11PbufferGLContext.java b/src/classes/com/sun/opengl/impl/x11/X11PbufferGLContext.java
index 5ff3bd86c..4207c7d99 100644
--- a/src/classes/com/sun/opengl/impl/x11/X11PbufferGLContext.java
+++ b/src/classes/com/sun/opengl/impl/x11/X11PbufferGLContext.java
@@ -110,6 +110,10 @@ public class X11PbufferGLContext extends X11GLContext {
   protected void releaseImpl() throws GLException {
     lockToolkit();
     try {
+      if (drawable.getDisplay() == 0) {
+        throw new GLException("Pbuffer destroyed out from under application-created context");
+      }
+
       if (!GLX.glXMakeContextCurrent(drawable.getDisplay(), 0, 0, 0)) {
         throw new GLException("Error freeing OpenGL context");
       }