/**
* NEWT Utility class MainThread
*
* <p>This class provides a startup singleton <i>main thread</i>, from which a new thread with the
* users main class is launched.<br>
* Such behavior is necessary for native windowing toolkits, where the windowing management must
* happen on the so called <i>main thread</i> e.g. for Mac OS X !<br>
* Utilizing this class as a launchpad, now you are able to use a NEWT multithreaded application
* with window handling within the different threads, even on these restricted platforms.<br>
* To support your NEWT Window platform, you have to pass your <i>main thread</i> actions to {@link
* #invoke invoke(..)}, have a look at the {@link com.jogamp.newt.macosx.MacWindow MacWindow}
* implementation.<br>
* <i>TODO</i>: Some hardcoded dependencies exist in this implementation, where you have to patch
* this code or factor it out.
*
* <p>If your platform is not Mac OS X, but you want to test your code without modifying this class,
* you have to set the system property <code>newt.MainThread.force</code> to <code>true</code>.
*
* <p>The code is compatible with all other platform, which support multithreaded windowing
* handling. Since those platforms won't trigger the <i>main thread</i> serialization, the main
* method will be simply executed, in case you haven't set <code>newt.MainThread.force</code> to
* <code>true</code>.
*
* <p>Test case on Mac OS X (or any other platform):
*
* <PRE>
* java -XstartOnFirstThread com.jogamp.newt.util.MainThread demos.es1.RedSquare -GL2 -GL2 -GL2 -GL2
* </PRE>
*
* Which starts 4 threads, each with a window and OpenGL rendering.<br>
*/
public class MainThread implements EDTUtil {
private static AccessControlContext localACC = AccessController.getContext();
public static final boolean MAIN_THREAD_CRITERIA =
(!NativeWindowFactory.isAWTAvailable()
&& NativeWindowFactory.TYPE_MACOSX.equals(
NativeWindowFactory.getNativeWindowType(false)))
|| Debug.getBooleanProperty("newt.MainThread.force", true, localACC);
protected static final boolean DEBUG = Debug.debug("MainThread");
private static MainThread singletonMainThread = new MainThread(); // one singleton MainThread
private static boolean isExit = false;
private static volatile boolean isRunning = false;
private static Object taskWorkerLock = new Object();
private static boolean shouldStop;
private static ArrayList tasks;
private static Thread mainThread;
private static Timer pumpMessagesTimer = null;
private static TimerTask pumpMessagesTimerTask = null;
private static Map /*<Display, Runnable>*/ pumpMessageDisplayMap = new HashMap();
private static boolean useMainThread = false;
private static Class cAWTEventQueue = null;
private static Method mAWTInvokeAndWait = null;
private static Method mAWTInvokeLater = null;
private static Method mAWTIsDispatchThread = null;
static class MainAction extends Thread {
private String mainClassName;
private String[] mainClassArgs;
private Class mainClass;
private Method mainClassMain;
public MainAction(String mainClassName, String[] mainClassArgs) {
this.mainClassName = mainClassName;
this.mainClassArgs = mainClassArgs;
}
public void run() {
if (useMainThread) {
// we have to start first to provide the service ..
singletonMainThread.waitUntilRunning();
}
// start user app ..
try {
Class mainClass = ReflectionUtil.getClass(mainClassName, true, getClass().getClassLoader());
if (null == mainClass) {
throw new RuntimeException(
new ClassNotFoundException("MainThread couldn't find main class " + mainClassName));
}
try {
mainClassMain = mainClass.getDeclaredMethod("main", new Class[] {String[].class});
mainClassMain.setAccessible(true);
} catch (Throwable t) {
throw new RuntimeException(t);
}
if (DEBUG)
System.err.println(
"MainAction.run(): " + Thread.currentThread().getName() + " invoke " + mainClassName);
mainClassMain.invoke(null, new Object[] {mainClassArgs});
} catch (InvocationTargetException ite) {
ite.getTargetException().printStackTrace();
} catch (Throwable t) {
t.printStackTrace();
}
if (DEBUG)
System.err.println(
"MainAction.run(): " + Thread.currentThread().getName() + " user app fin");
if (useMainThread) {
singletonMainThread.stop();
if (DEBUG)
System.err.println(
"MainAction.run(): " + Thread.currentThread().getName() + " MainThread fin - stop");
System.exit(0);
}
}
}
private static MainAction mainAction;
/** Your new java application main entry, which pipelines your application */
public static void main(String[] args) {
useMainThread = MAIN_THREAD_CRITERIA;
if (DEBUG)
System.err.println(
"MainThread.main(): "
+ Thread.currentThread().getName()
+ " useMainThread "
+ useMainThread);
if (args.length == 0) {
return;
}
String mainClassName = args[0];
String[] mainClassArgs = new String[args.length - 1];
if (args.length > 1) {
System.arraycopy(args, 1, mainClassArgs, 0, args.length - 1);
}
NEWTJNILibLoader.loadNEWT();
mainAction = new MainAction(mainClassName, mainClassArgs);
if (NativeWindowFactory.TYPE_MACOSX.equals(NativeWindowFactory.getNativeWindowType(false))) {
ReflectionUtil.callStaticMethod(
"com.jogamp.newt.impl.macosx.MacDisplay",
"initSingleton",
null,
null,
MainThread.class.getClassLoader());
}
if (useMainThread) {
shouldStop = false;
tasks = new ArrayList();
mainThread = Thread.currentThread();
// dispatch user's main thread ..
mainAction.start();
// do our main thread task scheduling
singletonMainThread.run();
} else {
// run user's main in this thread
mainAction.run();
}
}
public static final MainThread getSingleton() {
return singletonMainThread;
}
public static Runnable removePumpMessage(Display dpy) {
synchronized (pumpMessageDisplayMap) {
return (Runnable) pumpMessageDisplayMap.remove(dpy);
}
}
public static void addPumpMessage(Display dpy, Runnable pumpMessage) {
if (useMainThread) {
return; // error ?
}
if (null == pumpMessagesTimer) {
synchronized (MainThread.class) {
if (null == pumpMessagesTimer) {
pumpMessagesTimer = new Timer();
pumpMessagesTimerTask =
new TimerTask() {
public void run() {
synchronized (pumpMessageDisplayMap) {
for (Iterator i = pumpMessageDisplayMap.values().iterator(); i.hasNext(); ) {
((Runnable) i.next()).run();
}
}
}
};
pumpMessagesTimer.scheduleAtFixedRate(
pumpMessagesTimerTask, 0, defaultEDTPollGranularity);
}
}
}
synchronized (pumpMessageDisplayMap) {
pumpMessageDisplayMap.put(dpy, pumpMessage);
}
}
private void initAWTReflection() {
if (null == cAWTEventQueue) {
ClassLoader cl = MainThread.class.getClassLoader();
cAWTEventQueue = ReflectionUtil.getClass("java.awt.EventQueue", true, cl);
mAWTInvokeAndWait =
ReflectionUtil.getMethod(
cAWTEventQueue, "invokeAndWait", new Class[] {java.lang.Runnable.class}, cl);
mAWTInvokeLater =
ReflectionUtil.getMethod(
cAWTEventQueue, "invokeLater", new Class[] {java.lang.Runnable.class}, cl);
mAWTIsDispatchThread =
ReflectionUtil.getMethod(cAWTEventQueue, "isDispatchThread", new Class[] {}, cl);
}
}
public void start() {
// nop
}
public void stop() {
if (DEBUG)
System.err.println("MainThread.stop(): " + Thread.currentThread().getName() + " start");
synchronized (taskWorkerLock) {
if (isRunning) {
shouldStop = true;
}
taskWorkerLock.notifyAll();
}
if (DEBUG)
System.err.println("MainThread.stop(): " + Thread.currentThread().getName() + " end");
}
public boolean isCurrentThreadEDT() {
if (NativeWindowFactory.isAWTAvailable()) {
initAWTReflection();
return ((Boolean) ReflectionUtil.callMethod(null, mAWTIsDispatchThread, null)).booleanValue();
}
return isRunning() && mainThread == Thread.currentThread();
}
public boolean isRunning() {
if (useMainThread) {
synchronized (taskWorkerLock) {
return isRunning;
}
}
return true; // AWT is always running
}
private void invokeLater(Runnable task) {
synchronized (taskWorkerLock) {
if (isRunning() && mainThread != Thread.currentThread()) {
tasks.add(task);
taskWorkerLock.notifyAll();
} else {
// if !running or isEDTThread, do it right away
task.run();
}
}
}
/** invokes the given Runnable */
public void invoke(boolean wait, Runnable r) {
if (r == null) {
return;
}
if (NativeWindowFactory.isAWTAvailable()) {
initAWTReflection();
// handover to AWT MainThread ..
try {
if (((Boolean) ReflectionUtil.callMethod(null, mAWTIsDispatchThread, null))
.booleanValue()) {
r.run();
return;
}
if (wait) {
ReflectionUtil.callMethod(null, mAWTInvokeAndWait, new Object[] {r});
} else {
ReflectionUtil.callMethod(null, mAWTInvokeLater, new Object[] {r});
}
} catch (Exception e) {
throw new NativeWindowException(e);
}
return;
}
// if this main thread is not being used or
// if this is already the main thread .. just execute.
if (!isRunning() || mainThread == Thread.currentThread()) {
r.run();
return;
}
boolean doWait = wait && isRunning() && mainThread != Thread.currentThread();
Object lock = new Object();
RunnableTask rTask = new RunnableTask(r, doWait ? lock : null, true);
Throwable throwable = null;
synchronized (lock) {
invokeLater(rTask);
if (doWait) {
try {
lock.wait();
} catch (InterruptedException ie) {
throwable = ie;
}
}
}
if (null == throwable) {
throwable = rTask.getThrowable();
}
if (null != throwable) {
throw new RuntimeException(throwable);
}
}
public void waitUntilIdle() {}
public void waitUntilStopped() {}
private void waitUntilRunning() {
synchronized (taskWorkerLock) {
if (isExit) return;
while (!isRunning) {
try {
taskWorkerLock.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
public void run() {
if (DEBUG) System.err.println("MainThread.run(): " + Thread.currentThread().getName());
synchronized (taskWorkerLock) {
isRunning = true;
taskWorkerLock.notifyAll();
}
while (!shouldStop) {
try {
// wait for something todo ..
synchronized (taskWorkerLock) {
while (!shouldStop && tasks.size() == 0) {
try {
taskWorkerLock.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
// take over the tasks ..
if (!shouldStop && tasks.size() > 0) {
Runnable task = (Runnable) tasks.remove(0);
task.run(); // FIXME: could be run outside of lock
}
taskWorkerLock.notifyAll();
}
} catch (Throwable t) {
// handle errors ..
t.printStackTrace();
} finally {
// epilog - unlock locked stuff
}
}
if (DEBUG) System.err.println("MainThread.run(): " + Thread.currentThread().getName() + " fin");
synchronized (taskWorkerLock) {
isRunning = false;
isExit = true;
taskWorkerLock.notifyAll();
}
}
}
/**
* Subclass of GraphicsConfigurationFactory used when non-AWT tookits are used on X11 platforms.
* Toolkits will likely need to delegate to this one to change the accepted and returned types of
* the GraphicsDevice and GraphicsConfiguration abstractions.
*/
public class X11GLXGraphicsConfigurationFactory extends GraphicsConfigurationFactory {
protected static final boolean DEBUG = Debug.debug("GraphicsConfiguration");
public X11GLXGraphicsConfigurationFactory() {
GraphicsConfigurationFactory.registerFactory(
javax.media.nativewindow.x11.X11GraphicsDevice.class, this);
}
public AbstractGraphicsConfiguration chooseGraphicsConfiguration(
Capabilities capabilities, CapabilitiesChooser chooser, AbstractGraphicsScreen absScreen) {
return chooseGraphicsConfigurationStatic(capabilities, chooser, absScreen);
}
protected static X11GLXGraphicsConfiguration createDefaultGraphicsConfiguration(
AbstractGraphicsScreen absScreen, boolean onscreen, boolean usePBuffer) {
if (absScreen == null) {
throw new IllegalArgumentException("AbstractGraphicsScreen is null");
}
if (!(absScreen instanceof X11GraphicsScreen)) {
throw new IllegalArgumentException("Only X11GraphicsScreen are allowed here");
}
X11GraphicsScreen x11Screen = (X11GraphicsScreen) absScreen;
GLProfile glProfile = GLProfile.getDefault();
GLCapabilities caps = null;
XVisualInfo xvis = null;
long fbcfg = 0;
int fbid = -1;
// Utilizing FBConfig
//
GLCapabilities capsFB = null;
long display = x11Screen.getDevice().getHandle();
try {
NativeWindowFactory.getDefaultFactory().getToolkitLock().lock();
X11Lib.XLockDisplay(display);
int screen = x11Screen.getIndex();
boolean isMultisampleAvailable = GLXUtil.isMultisampleAvailable(display);
long visID = X11Lib.DefaultVisualID(display, x11Screen.getIndex());
xvis = X11GLXGraphicsConfiguration.XVisualID2XVisualInfo(display, visID);
caps =
X11GLXGraphicsConfiguration.XVisualInfo2GLCapabilities(
glProfile, display, xvis, onscreen, usePBuffer, isMultisampleAvailable);
int[] attribs =
X11GLXGraphicsConfiguration.GLCapabilities2AttribList(
caps, true, isMultisampleAvailable, display, screen);
int[] count = {-1};
PointerBuffer fbcfgsL = GLX.glXChooseFBConfigCopied(display, screen, attribs, 0, count, 0);
if (fbcfgsL == null || fbcfgsL.limit() < 1) {
throw new Exception("Could not fetch FBConfig for " + caps);
}
fbcfg = fbcfgsL.get(0);
capsFB =
X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(
glProfile, display, fbcfg, true, onscreen, usePBuffer, isMultisampleAvailable);
fbid = X11GLXGraphicsConfiguration.glXFBConfig2FBConfigID(display, fbcfg);
xvis = GLX.glXGetVisualFromFBConfigCopied(display, fbcfg);
if (xvis == null) {
throw new GLException("Error: Choosen FBConfig has no visual");
}
} catch (Throwable t) {
} finally {
X11Lib.XUnlockDisplay(display);
NativeWindowFactory.getDefaultFactory().getToolkitLock().unlock();
}
return new X11GLXGraphicsConfiguration(
x11Screen, (null != capsFB) ? capsFB : caps, caps, null, xvis, fbcfg, fbid);
}
protected static X11GLXGraphicsConfiguration chooseGraphicsConfigurationStatic(
Capabilities capabilities, CapabilitiesChooser chooser, AbstractGraphicsScreen absScreen) {
if (absScreen == null) {
throw new IllegalArgumentException("AbstractGraphicsScreen is null");
}
if (!(absScreen instanceof X11GraphicsScreen)) {
throw new IllegalArgumentException("Only X11GraphicsScreen are allowed here");
}
X11GraphicsScreen x11Screen = (X11GraphicsScreen) absScreen;
if (capabilities != null && !(capabilities instanceof GLCapabilities)) {
throw new IllegalArgumentException(
"This NativeWindowFactory accepts only GLCapabilities objects");
}
if (chooser != null && !(chooser instanceof GLCapabilitiesChooser)) {
throw new IllegalArgumentException(
"This NativeWindowFactory accepts only GLCapabilitiesChooser objects");
}
if (capabilities == null) {
capabilities = new GLCapabilities(null);
}
boolean onscreen = capabilities.isOnscreen();
boolean usePBuffer = ((GLCapabilities) capabilities).isPBuffer();
GLCapabilities caps2 = (GLCapabilities) capabilities.clone();
if (!caps2.isOnscreen()) {
// OFFSCREEN !DOUBLE_BUFFER // FIXME DBLBUFOFFSCRN
caps2.setDoubleBuffered(false);
}
X11GLXGraphicsConfiguration res;
res =
chooseGraphicsConfigurationFBConfig(
(GLCapabilities) caps2, (GLCapabilitiesChooser) chooser, x11Screen);
if (null == res) {
if (usePBuffer) {
throw new GLException(
"Error: Couldn't create X11GLXGraphicsConfiguration based on FBConfig");
}
res =
chooseGraphicsConfigurationXVisual(
(GLCapabilities) caps2, (GLCapabilitiesChooser) chooser, x11Screen);
}
if (null == res) {
throw new GLException("Error: Couldn't create X11GLXGraphicsConfiguration");
}
if (DEBUG) {
System.err.println(
"X11GLXGraphicsConfiguration.chooseGraphicsConfigurationStatic("
+ x11Screen
+ ","
+ caps2
+ "): "
+ res);
}
return res;
}
protected static X11GLXGraphicsConfiguration chooseGraphicsConfigurationFBConfig(
GLCapabilities capabilities, GLCapabilitiesChooser chooser, X11GraphicsScreen x11Screen) {
int recommendedIndex = -1;
GLCapabilities[] caps = null;
PointerBuffer fbcfgsL = null;
int chosen = -1;
int retFBID = -1;
XVisualInfo retXVisualInfo = null;
GLProfile glProfile = capabilities.getGLProfile();
boolean onscreen = capabilities.isOnscreen();
boolean usePBuffer = capabilities.isPBuffer();
// Utilizing FBConfig
//
AbstractGraphicsDevice absDevice = x11Screen.getDevice();
long display = absDevice.getHandle();
try {
NativeWindowFactory.getDefaultFactory().getToolkitLock().lock();
X11Lib.XLockDisplay(display);
int screen = x11Screen.getIndex();
boolean isMultisampleAvailable = GLXUtil.isMultisampleAvailable(display);
int[] attribs =
X11GLXGraphicsConfiguration.GLCapabilities2AttribList(
capabilities, true, isMultisampleAvailable, display, screen);
int[] count = {-1};
fbcfgsL = GLX.glXChooseFBConfigCopied(display, screen, attribs, 0, count, 0);
if (fbcfgsL == null || fbcfgsL.limit() < 1) {
if (DEBUG) {
System.err.println(
"X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: Failed glXChooseFBConfig ("
+ x11Screen
+ ","
+ capabilities
+ "): "
+ fbcfgsL
+ ", "
+ count[0]);
}
return null;
}
if (!X11GLXGraphicsConfiguration.GLXFBConfigValid(display, fbcfgsL.get(0))) {
if (DEBUG) {
System.err.println(
"X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: Failed - GLX FBConfig invalid: ("
+ x11Screen
+ ","
+ capabilities
+ "): "
+ fbcfgsL
+ ", fbcfg: 0x"
+ Long.toHexString(fbcfgsL.get(0)));
}
return null;
}
recommendedIndex = 0; // 1st match is always recommended ..
caps = new GLCapabilities[fbcfgsL.limit()];
for (int i = 0; i < fbcfgsL.limit(); i++) {
caps[i] =
X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(
glProfile,
display,
fbcfgsL.get(i),
false,
onscreen,
usePBuffer,
isMultisampleAvailable);
}
if (null == chooser) {
chosen = recommendedIndex;
} else {
try {
chosen = chooser.chooseCapabilities(capabilities, caps, recommendedIndex);
} catch (NativeWindowException e) {
if (DEBUG) {
e.printStackTrace();
}
chosen = -1;
}
}
if (chosen < 0) {
// keep on going ..
if (DEBUG) {
System.err.println(
"X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig Failed .. unable to choose config, using first");
}
chosen = 0; // default ..
} else if (chosen >= caps.length) {
throw new GLException(
"GLCapabilitiesChooser specified invalid index (expected 0.."
+ (caps.length - 1)
+ ")");
}
retFBID = X11GLXGraphicsConfiguration.glXFBConfig2FBConfigID(display, fbcfgsL.get(chosen));
retXVisualInfo = GLX.glXGetVisualFromFBConfigCopied(display, fbcfgsL.get(chosen));
if (retXVisualInfo == null) {
if (DEBUG) {
System.err.println(
"X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: Failed glXGetVisualFromFBConfig ("
+ x11Screen
+ ", "
+ fbcfgsL.get(chosen)
+ " (Continue: "
+ (false == caps[chosen].isOnscreen())
+ "):\n\t"
+ caps[chosen]);
}
if (caps[chosen].isOnscreen()) {
// Onscreen drawables shall have a XVisual ..
return null;
}
}
} finally {
X11Lib.XUnlockDisplay(display);
NativeWindowFactory.getDefaultFactory().getToolkitLock().unlock();
}
return new X11GLXGraphicsConfiguration(
x11Screen,
caps[chosen],
capabilities,
chooser,
retXVisualInfo,
fbcfgsL.get(chosen),
retFBID);
}
protected static X11GLXGraphicsConfiguration chooseGraphicsConfigurationXVisual(
GLCapabilities capabilities, GLCapabilitiesChooser chooser, X11GraphicsScreen x11Screen) {
if (chooser == null) {
chooser = new DefaultGLCapabilitiesChooser();
}
// Until we have a rock-solid visual selection algorithm written
// in pure Java, we're going to provide the underlying window
// system's selection to the chooser as a hint
GLProfile glProfile = capabilities.getGLProfile();
boolean onscreen = capabilities.isOnscreen();
GLCapabilities[] caps = null;
int recommendedIndex = -1;
XVisualInfo retXVisualInfo = null;
int chosen = -1;
AbstractGraphicsDevice absDevice = x11Screen.getDevice();
long display = absDevice.getHandle();
try {
NativeWindowFactory.getDefaultFactory().getToolkitLock().lock();
X11Lib.XLockDisplay(display);
int screen = x11Screen.getIndex();
boolean isMultisampleAvailable = GLXUtil.isMultisampleAvailable(display);
int[] attribs =
X11GLXGraphicsConfiguration.GLCapabilities2AttribList(
capabilities, false, isMultisampleAvailable, display, screen);
XVisualInfo[] infos = null;
XVisualInfo recommendedVis = GLX.glXChooseVisualCopied(display, screen, attribs, 0);
if (DEBUG) {
System.err.print("!!! glXChooseVisual recommended ");
if (recommendedVis == null) {
System.err.println("null visual");
} else {
System.err.println("visual id 0x" + Long.toHexString(recommendedVis.getVisualid()));
}
}
int[] count = new int[1];
XVisualInfo template = XVisualInfo.create();
template.setScreen(screen);
infos = X11Lib.XGetVisualInfoCopied(display, X11Lib.VisualScreenMask, template, count, 0);
if (infos == null || infos.length < 1) {
throw new GLException("Error while enumerating available XVisualInfos");
}
caps = new GLCapabilities[infos.length];
for (int i = 0; i < infos.length; i++) {
caps[i] =
X11GLXGraphicsConfiguration.XVisualInfo2GLCapabilities(
glProfile, display, infos[i], onscreen, false, isMultisampleAvailable);
// Attempt to find the visual chosen by glXChooseVisual
if (recommendedVis != null && recommendedVis.getVisualid() == infos[i].getVisualid()) {
recommendedIndex = i;
}
}
try {
chosen = chooser.chooseCapabilities(capabilities, caps, recommendedIndex);
} catch (NativeWindowException e) {
if (DEBUG) {
e.printStackTrace();
}
chosen = -1;
}
if (chosen < 0) {
// keep on going ..
if (DEBUG) {
System.err.println(
"X11GLXGraphicsConfiguration.chooseGraphicsConfigurationXVisual Failed .. unable to choose config, using first");
}
chosen = 0; // default ..
} else if (chosen >= caps.length) {
throw new GLException(
"GLCapabilitiesChooser specified invalid index (expected 0.."
+ (caps.length - 1)
+ ")");
}
if (infos[chosen] == null) {
throw new GLException("GLCapabilitiesChooser chose an invalid visual");
}
retXVisualInfo = XVisualInfo.create(infos[chosen]);
} finally {
X11Lib.XUnlockDisplay(display);
NativeWindowFactory.getDefaultFactory().getToolkitLock().unlock();
}
return new X11GLXGraphicsConfiguration(
x11Screen, caps[chosen], capabilities, chooser, retXVisualInfo, 0, -1);
}
}