Added optimized path to GLDrawableHelper for situation where

GLWorkerThread is being used; last context made current on that thread
is left current on that thread. In the case where only a single OpenGL
context is in use this eliminates the repeated calls to makeCurrent.
Ran into same NVidia driver bug causing crashes upon exit with
Java2D/OpenGL pipeline. Added workaround to GLDrawableHelper which can
be enabled with -Djogl.nvidia.crash.workaround, which just disables
this optimization. Fixed GLCanvas and GLPbufferImpl's destruction
paths to behave correctly in the face of the context being left
current on the GLWorkerThread. Updated code in Threading related to
GLWorkerThread to interoperate better with Java2D/OpenGL pipeline.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@629 232f8b59-042b-4e1e-8c03-345bb8c30851

3 files changed, 167 insertions, 33 deletions

diff --git a/src/classes/com/sun/opengl/impl/GLDrawableHelper.java b/src/classes/com/sun/opengl/impl/GLDrawableHelper.java
index 614b26096..920fac624 100644
--- a/src/classes/com/sun/opengl/impl/GLDrawableHelper.java
+++ b/src/classes/com/sun/opengl/impl/GLDrawableHelper.java
@@ -49,6 +49,7 @@ public class GLDrawableHelper {
   private volatile List listeners = new ArrayList();
   private static final boolean DEBUG = Debug.debug("GLDrawableHelper");
   private static final boolean VERBOSE = Debug.verbose();
+  private static final boolean NVIDIA_CRASH_WORKAROUND = Debug.isPropertyDefined("jogl.nvidia.crash.workaround");
   private boolean autoSwapBufferMode = true;
 
   public GLDrawableHelper() {
@@ -104,46 +105,106 @@ public class GLDrawableHelper {
                        GLContext context,
                        Runnable  runnable,
                        Runnable  initAction) {
-    // Support for recursive makeCurrent() calls as well as calling
-    // other drawables' display() methods from within another one's
-    GLContext lastContext    = GLContext.getCurrent();
-    Runnable  lastInitAction = (Runnable) perThreadInitAction.get();
-    if (lastContext != null) {
-      lastContext.release();
-    }
-    
-    int res = 0;
-    try {
-      res = context.makeCurrent();
-      if (res != GLContext.CONTEXT_NOT_CURRENT) {
-        perThreadInitAction.set(initAction);
-        if (res == GLContext.CONTEXT_CURRENT_NEW) {
-          if (DEBUG) {
-            System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running initAction");
+    if (GLWorkerThread.isStarted() &&
+        GLWorkerThread.isWorkerThread()) {
+      // We're going to allow a context to be left current on the
+      // GLWorkerThread for optimization purposes
+      GLContext lastContext    = GLContext.getCurrent();
+      Runnable  lastInitAction = (Runnable) perThreadInitAction.get();
+      if (lastContext != null && lastContext != context) {
+        lastContext.release();
+      } else {
+        lastContext = null;
+      }
+
+      // FIXME: probably need to handle the case where the user is
+      // waiting for this context to be released; need to periodically
+      // release the context? See if anybody is waiting to make it
+      // current on another thread? (The latter would require the use
+      // of internal APIs...)
+
+      int res = 0;
+      try {
+        res = context.makeCurrent();
+        if (res != GLContext.CONTEXT_NOT_CURRENT) {
+          perThreadInitAction.set(initAction);
+          if (res == GLContext.CONTEXT_CURRENT_NEW) {
+            if (DEBUG) {
+              System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running initAction");
+            }
+            initAction.run();
+          }
+          if (DEBUG && VERBOSE) {
+            System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running runnable");
+          }
+          runnable.run();
+          if (autoSwapBufferMode) {
+            if (drawable != null) {
+              drawable.swapBuffers();
+            }
           }
-          initAction.run();
         }
-        if (DEBUG && VERBOSE) {
-          System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running runnable");
+      } finally {
+
+        // FIXME: take this out as soon as possible
+        if (NVIDIA_CRASH_WORKAROUND) {
+          try {
+            if (res != GLContext.CONTEXT_NOT_CURRENT) {
+              context.release();
+            }
+          } catch (Exception e) {
+          }
         }
-        runnable.run();
-        if (autoSwapBufferMode) {
-          if (drawable != null) {
-            drawable.swapBuffers();
+
+        if (lastContext != null) {
+          int res2 = lastContext.makeCurrent();
+          if (res2 == GLContext.CONTEXT_CURRENT_NEW) {
+            lastInitAction.run();
           }
         }
       }
-    } finally {
+    } else {
+      // Support for recursive makeCurrent() calls as well as calling
+      // other drawables' display() methods from within another one's
+      GLContext lastContext    = GLContext.getCurrent();
+      Runnable  lastInitAction = (Runnable) perThreadInitAction.get();
+      if (lastContext != null) {
+        lastContext.release();
+      }
+    
+      int res = 0;
       try {
+        res = context.makeCurrent();
         if (res != GLContext.CONTEXT_NOT_CURRENT) {
-          context.release();
+          perThreadInitAction.set(initAction);
+          if (res == GLContext.CONTEXT_CURRENT_NEW) {
+            if (DEBUG) {
+              System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running initAction");
+            }
+            initAction.run();
+          }
+          if (DEBUG && VERBOSE) {
+            System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running runnable");
+          }
+          runnable.run();
+          if (autoSwapBufferMode) {
+            if (drawable != null) {
+              drawable.swapBuffers();
+            }
+          }
         }
-      } catch (Exception e) {
-      }
-      if (lastContext != null) {
-        int res2 = lastContext.makeCurrent();
-        if (res2 == GLContext.CONTEXT_CURRENT_NEW) {
-          lastInitAction.run();
+      } finally {
+        try {
+          if (res != GLContext.CONTEXT_NOT_CURRENT) {
+            context.release();
+          }
+        } catch (Exception e) {
+        }
+        if (lastContext != null) {
+          int res2 = lastContext.makeCurrent();
+          if (res2 == GLContext.CONTEXT_CURRENT_NEW) {
+            lastInitAction.run();
+          }
         }
       }
     }
diff --git a/src/classes/com/sun/opengl/impl/GLPbufferImpl.java b/src/classes/com/sun/opengl/impl/GLPbufferImpl.java
index 196ea7223..feb9d3512 100644
--- a/src/classes/com/sun/opengl/impl/GLPbufferImpl.java
+++ b/src/classes/com/sun/opengl/impl/GLPbufferImpl.java
@@ -172,8 +172,12 @@ public class GLPbufferImpl implements GLPbuffer {
                                            PropertyChangeListener listener) {}
 
   public void destroy() {
-    context.destroy();
-    pbufferDrawable.destroy();
+    if (Threading.isSingleThreaded() &&
+        !Threading.isOpenGLThread()) {
+      Threading.invokeOnOpenGLThread(destroyAction);
+    } else {
+      destroyAction.run();
+    }
   }
 
   public int getFloatingPointMode() {
@@ -238,4 +242,16 @@ public class GLPbufferImpl implements GLPbuffer {
   }
   private SwapBuffersOnEventDispatchThreadAction swapBuffersOnEventDispatchThreadAction =
     new SwapBuffersOnEventDispatchThreadAction();
+
+  class DestroyAction implements Runnable {
+    public void run() {
+      GLContext current = GLContext.getCurrent();
+      if (current == context) {
+        context.release();
+      }
+      context.destroy();
+      pbufferDrawable.destroy();
+    }
+  }
+  private DestroyAction destroyAction = new DestroyAction();
 }
diff --git a/src/classes/com/sun/opengl/impl/GLWorkerThread.java b/src/classes/com/sun/opengl/impl/GLWorkerThread.java
index 52ada9bac..4091d1a77 100755
--- a/src/classes/com/sun/opengl/impl/GLWorkerThread.java
+++ b/src/classes/com/sun/opengl/impl/GLWorkerThread.java
@@ -40,6 +40,8 @@
 package com.sun.opengl.impl;
 
 import java.lang.reflect.InvocationTargetException;
+import java.security.*;
+import javax.media.opengl.*;
 
 /** Singleton thread upon which all OpenGL work is performed by
     default. Unfortunately many vendors' OpenGL drivers are not really
@@ -73,6 +75,7 @@ public class GLWorkerThread {
           lock = new Object();
           thread = new Thread(new WorkerRunnable(),
                               "JOGL GLWorkerThread");
+          thread.setDaemon(true);
           started = true;
           synchronized (lock) {
             thread.start();
@@ -81,6 +84,59 @@ public class GLWorkerThread {
             } catch (InterruptedException e) {
             }
           }
+
+          /*
+
+          // Note: it appears that there is a bug in NVidia's current
+          // drivers where if a context was ever made current on a
+          // given thread and that thread has exited before program
+          // exit, a crash occurs in the drivers. Releasing the
+          // context from the given thread does not work around the
+          // problem.
+          //
+          // For the time being, we're going to work around this
+          // problem by not terminating the GLWorkerThread. In theory,
+          // shutting down the GLWorkerThread cleanly could be a good
+          // general solution to the problem of needing to
+          // cooperatively terminate all Animators at program exit.
+          //
+          // It appears that this doesn't even work around all of the
+          // kinds of crashes. Causing the context to be unilaterally
+          // released from the GLWorkerThread after each invocation
+          // seems to work around all of the kinds of crashes seen.
+          //
+          // These appear to be similar to the kinds of crashes seen
+          // when the Java2D/OpenGL pipeline terminates, and those are
+          // a known issue being fixed, so presumably these will be
+          // fixed in NVidia's next driver set.
+
+          // Install shutdown hook to terminate daemon thread more or
+          // less cooperatively
+          AccessController.doPrivileged(new PrivilegedAction() {
+              public Object run() {
+                Runtime.getRuntime().addShutdownHook(new Thread() {
+                    public void run() {
+                      Object lockTemp = lock;
+                      if (lockTemp == null) {
+                        // Already terminating (?)
+                        return;
+                      }
+                      synchronized (lockTemp) {
+                        shouldTerminate = true;
+                        lockTemp.notifyAll();
+                        try {
+                          lockTemp.wait(500);
+                        } catch (InterruptedException e) {
+                        }
+                      }
+                    }
+                  });
+                return null;
+              }
+            });
+
+          */
+
         } else {
           throw new RuntimeException("Should not start GLWorkerThread twice");
         }
@@ -143,6 +199,7 @@ public class GLWorkerThread {
           }
           
           if (shouldTerminate) {
+            lock.notifyAll();
             thread = null;
             lock = null;
             return;