From 3f72e907e869370b98dc7519ae5fc53681376450 Mon Sep 17 00:00:00 2001
From: Michael Bien <mbien@fh-landshut.de>
Date: Sat, 27 Mar 2010 23:28:04 +0100
Subject: refactoring part 3 (impl package): renamed com.sun.opengl ->
com.jogamp.opengl.
---
.../com/sun/opengl/impl/GLWorkerThread.java | 275 ---------------------
1 file changed, 275 deletions(-)
delete mode 100755 src/jogl/classes/com/sun/opengl/impl/GLWorkerThread.java
(limited to 'src/jogl/classes/com/sun/opengl/impl/GLWorkerThread.java')
diff --git a/src/jogl/classes/com/sun/opengl/impl/GLWorkerThread.java b/src/jogl/classes/com/sun/opengl/impl/GLWorkerThread.java
deleted file mode 100755
index b110e4335..000000000
--- a/src/jogl/classes/com/sun/opengl/impl/GLWorkerThread.java
+++ /dev/null
@@ -1,275 +0,0 @@
-/*
- * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package com.sun.opengl.impl;
-
-import java.lang.reflect.InvocationTargetException;
-import java.security.*;
-import java.util.*;
-import javax.media.opengl.*;
-
-/** Singleton thread upon which all OpenGL work is performed by
- default. Unfortunately many vendors' OpenGL drivers are not really
- thread-safe and stability is much improved by performing OpenGL
- work on at most one thread. This is the default behavior of the
- GLAutoDrawable implementations according to the {@link
- javax.media.opengl.Threading Threading} class. The GLWorkerThread
- replaces the original AWT event queue thread-based mechanism for
- two reasons: first, more than one AWT event queue thread may be
- spawned, for example if a dialog is being shown; second, it avoids
- blocking the AWT event queue thread during OpenGL rendering. */
-
-public class GLWorkerThread {
- private static volatile boolean started;
- private static volatile Thread thread;
- private static Object lock;
- private static volatile boolean shouldTerminate;
- private static volatile Throwable exception;
-
- // The Runnable to execute immediately on the worker thread
- private static volatile Runnable work;
- // Queue of Runnables to be asynchronously invoked
- private static List queue = new LinkedList();
-
- /** Should only be called by Threading class if creation of the
- GLWorkerThread was requested via the opengl.1thread system
- property. */
- public static void start() {
- if (!started) {
- synchronized (GLWorkerThread.class) {
- if (!started) {
- lock = new Object();
- thread = new Thread(new WorkerRunnable(),
- "JOGL GLWorkerThread");
- thread.setDaemon(true);
- started = true;
- synchronized (lock) {
- thread.start();
- try {
- lock.wait();
- } 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");
- }
- }
- }
- }
-
- public static void invokeAndWait(Runnable runnable)
- throws InvocationTargetException, InterruptedException {
- if (!started) {
- throw new RuntimeException("May not invokeAndWait on worker thread without starting it first");
- }
-
- Object lockTemp = lock;
- if (lockTemp == null) {
- return; // Terminating
- }
-
- synchronized (lockTemp) {
- if (thread == null) {
- // Terminating
- return;
- }
-
- work = runnable;
- lockTemp.notifyAll();
- lockTemp.wait();
- if (exception != null) {
- Throwable localException = exception;
- exception = null;
- throw new InvocationTargetException(localException);
- }
- }
- }
-
- public static void invokeLater(Runnable runnable) {
- if (!started) {
- throw new RuntimeException("May not invokeLater on worker thread without starting it first");
- }
-
- Object lockTemp = lock;
- if (lockTemp == null) {
- return; // Terminating
- }
-
- synchronized (lockTemp) {
- if (thread == null) {
- // Terminating
- return;
- }
-
- queue.add(runnable);
- lockTemp.notifyAll();
- }
- }
-
- /** Indicates whether the OpenGL worker thread was started, i.e.,
- whether it is currently in use. */
- public static boolean isStarted() {
- return started;
- }
-
- /** Indicates whether the current thread is the OpenGL worker
- thread. */
- public static boolean isWorkerThread() {
- return (Thread.currentThread() == thread);
- }
-
- static class WorkerRunnable implements Runnable {
- public void run() {
- // Notify starting thread that we're ready
- synchronized (lock) {
- lock.notifyAll();
- }
-
- while (!shouldTerminate) {
- synchronized (lock) {
- while (!shouldTerminate &&
- (work == null) &&
- queue.isEmpty()) {
- try {
- // Avoid race conditions with wanting to release contexts on this thread
- lock.wait(1000);
- } catch (InterruptedException e) {
- }
-
- if (GLContext.getCurrent() != null) {
- // Test later to see whether we need to release this context
- break;
- }
- }
-
- if (shouldTerminate) {
- lock.notifyAll();
- thread = null;
- lock = null;
- return;
- }
-
- if (work != null) {
- try {
- work.run();
- } catch (Throwable t) {
- exception = t;
- } finally {
- work = null;
- lock.notifyAll();
- }
- }
-
- while (!queue.isEmpty()) {
- try {
- Runnable curAsync = (Runnable) queue.remove(0);
- curAsync.run();
- } catch (Throwable t) {
- System.out.println("Exception occurred on JOGL OpenGL worker thread:");
- t.printStackTrace();
- }
- }
-
- // See about releasing current context
- GLContext curContext = GLContext.getCurrent();
- if (curContext != null &&
- (curContext instanceof GLContextImpl)) {
- GLContextImpl impl = (GLContextImpl) curContext;
- if (impl.hasWaiters()) {
- impl.release();
- }
- }
- }
- }
- }
- }
-}
--
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