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/*
* Copyright (c) 2003 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.
*/
package com.jogamp.openal.impl;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.security.*;
import com.jogamp.gluegen.runtime.*;
public class NativeLibLoader {
private static volatile boolean loadingEnabled = true;
private static volatile boolean didLoading;
private NativeLibLoader() {}
public static void disableLoading() {
loadingEnabled = false;
}
public static void enableLoading() {
loadingEnabled = true;
}
public static void load() {
if (!didLoading && loadingEnabled) {
synchronized (NativeLibLoader.class) {
if (!didLoading && loadingEnabled) {
didLoading = true;
AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
// Workaround for problem in OpenAL32.dll, which is actually
// the "wrapper" DLL which looks for real OpenAL
// implementations like nvopenal.dll and "*oal.dll".
// joal.dll matches this wildcard and a bug in OpenAL32.dll
// causes a call through a null function pointer.
loadLibraryInternal("joal");
// Workaround for 4845371.
// Make sure the first reference to the JNI GetDirectBufferAddress is done
// from a privileged context so the VM's internal class lookups will succeed.
// FIXME: need to figure out an appropriate entry point to call for JOAL
// JAWT jawt = new JAWT();
// JAWTFactory.JAWT_GetAWT(jawt);
return null;
}
});
}
}
}
}
private static void loadLibraryInternal(String libraryName) {
String sunAppletLauncher = System.getProperty("sun.jnlp.applet.launcher");
boolean usingJNLPAppletLauncher = Boolean.valueOf(sunAppletLauncher).booleanValue();
if (usingJNLPAppletLauncher) {
try {
Class jnlpAppletLauncherClass = Class.forName("org.jdesktop.applet.util.JNLPAppletLauncher");
Method jnlpLoadLibraryMethod = jnlpAppletLauncherClass.getDeclaredMethod("loadLibrary", new Class[] { String.class });
jnlpLoadLibraryMethod.invoke(null, new Object[] { libraryName });
} catch (Exception e) {
Throwable t = e;
if (t instanceof InvocationTargetException) {
t = ((InvocationTargetException) t).getTargetException();
}
if (t instanceof Error)
throw (Error) t;
if (t instanceof RuntimeException) {
throw (RuntimeException) t;
}
// Throw UnsatisfiedLinkError for best compatibility with System.loadLibrary()
throw (UnsatisfiedLinkError) new UnsatisfiedLinkError().initCause(e);
}
} else {
System.loadLibrary(libraryName);
}
}
}
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