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Java™ Binding for the OpenGL® API
/*
* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
* Copyright (c) 2010 JogAmp Community. 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 jogamp.opengl;
import java.util.ArrayList;
import java.util.List;
import java.util.HashSet;
import javax.media.nativewindow.NativeSurface;
import javax.media.nativewindow.NativeWindowException;
import javax.media.nativewindow.ProxySurface;
import javax.media.nativewindow.UpstreamSurfaceHook;
import javax.media.opengl.GLAnimatorControl;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLContext;
import javax.media.opengl.GLDrawable;
import javax.media.opengl.GLDrawableFactory;
import javax.media.opengl.GLEventListener;
import javax.media.opengl.GLException;
import javax.media.opengl.GLFBODrawable;
import javax.media.opengl.GLRunnable;
/** Encapsulates the implementation of most of the GLAutoDrawable's
methods to be able to share it between GLAutoDrawable implementations like GLAutoDrawableBase, GLCanvas and GLJPanel. */
public class GLDrawableHelper {
/** true if property jogl.debug.GLDrawable.PerfStats is defined. */
private static final boolean PERF_STATS = Debug.isPropertyDefined("jogl.debug.GLDrawable.PerfStats", true);
protected static final boolean DEBUG = GLDrawableImpl.DEBUG;
private final Object listenersLock = new Object();
private final ArrayList listeners = new ArrayList();
private final HashSet listenersToBeInit = new HashSet();
private final Object glRunnablesLock = new Object();
private volatile ArrayList glRunnables = new ArrayList();
private boolean autoSwapBufferMode;
private volatile Thread exclusiveContextThread;
/** -1 release, 0 nop, 1 claim */
private volatile int exclusiveContextSwitch;
private GLAnimatorControl animatorCtrl;
private static Runnable nop = new Runnable() { public void run() {} };
public GLDrawableHelper() {
reset();
}
public final void reset() {
synchronized(listenersLock) {
listeners.clear();
listenersToBeInit.clear();
}
autoSwapBufferMode = true;
exclusiveContextThread = null;
exclusiveContextSwitch = 0;
synchronized(glRunnablesLock) {
glRunnables.clear();
}
animatorCtrl = null;
}
@Override
public final String toString() {
StringBuilder sb = new StringBuilder();
sb.append("GLAnimatorControl: "+animatorCtrl+", ");
synchronized(listenersLock) {
sb.append("GLEventListeners num "+listeners.size()+" [");
for (int i=0; i < listeners.size(); i++) {
Object l = listeners.get(i);
sb.append(l);
sb.append("[init ");
sb.append( !listenersToBeInit.contains(l) );
sb.append("], ");
}
}
sb.append("]");
return sb.toString();
}
/** Limit release calls of {@link #forceNativeRelease(GLContext)} to {@value}. */
private static final int MAX_RELEASE_ITER = 512;
/**
* Since GLContext's {@link GLContext#makeCurrent()} and {@link GLContext#release()}
* is recursive, a call to {@link GLContext#release()} may not natively release the context.
*
* This methods continues calling {@link GLContext#release()} until the context has been natively released.
*
* @param ctx
*/
public static final void forceNativeRelease(GLContext ctx) {
int releaseCount = 0;
do {
ctx.release();
releaseCount++;
if (DEBUG) {
System.err.println("GLDrawableHelper.forceNativeRelease() #"+releaseCount+" -- currentThread "+Thread.currentThread()+" -> "+GLContext.getCurrent());
}
} while( MAX_RELEASE_ITER > releaseCount && ctx.isCurrent() );
if( ctx.isCurrent() ) {
throw new GLException("Context still current after "+MAX_RELEASE_ITER+" releases: "+ctx);
}
}
/**
* Switch {@link GLContext} / {@link GLDrawable} association.
*
* The oldCtx will be destroyed if destroyPrevCtx is true,
* otherwise dis-associate oldCtx from drawable
* via {@link GLContext#setGLDrawable(GLDrawable, boolean) oldCtx.setGLDrawable(null, true);}.
*
*
* Re-associate newCtx with drawable
* via {@link GLContext#setGLDrawable(GLDrawable, boolean) newCtx.setGLDrawable(drawable, true);}.
*
*
* If the old or new context was current on this thread, it is being released before switching the drawable.
*
*
* No locking is being performed on the drawable, caller is required to take care of it.
*
*
* @param drawable the drawable which context is changed
* @param oldCtx the old context, maybe null.
* @param destroyOldCtx if true, destroy the oldCtx
* @param newCtx the new context, maybe null for dis-association.
* @param newCtxCreationFlags additional creation flags if newCtx is not null and not been created yet, see {@link GLContext#setContextCreationFlags(int)}
*
* @see GLAutoDrawable#setContext(GLContext, boolean)
*/
public static final void switchContext(GLDrawable drawable, GLContext oldCtx, boolean destroyOldCtx, GLContext newCtx, int newCtxCreationFlags) {
if( null != oldCtx ) {
if( destroyOldCtx ) {
oldCtx.destroy();
} else {
oldCtx.setGLDrawable(null, true); // dis-associate old pair
}
}
if(null!=newCtx) {
newCtx.setContextCreationFlags(newCtxCreationFlags);
newCtx.setGLDrawable(drawable, true); // re-associate new pair
}
}
/**
* If the drawable is not realized, OP is a NOP.
*
* - release context if current
* - destroy old drawable
* - create new drawable
* - attach new drawable to context
* - make context current, if it was current
*
*
* Locking is performed via {@link GLContext#makeCurrent()} on the passed context.
*
*
* @param drawable
* @param context maybe null
* @return the new drawable
*/
public static final GLDrawableImpl recreateGLDrawable(GLDrawableImpl drawable, GLContext context) {
if( ! drawable.isRealized() ) {
return drawable;
}
final GLContext currentContext = GLContext.getCurrent();
final GLDrawableFactory factory = drawable.getFactory();
final NativeSurface surface = drawable.getNativeSurface();
final ProxySurface proxySurface = (surface instanceof ProxySurface) ? (ProxySurface)surface : null;
if( null != context ) {
// Ensure to sync GL command stream
if( currentContext != context ) {
context.makeCurrent();
}
context.getGL().glFinish();
context.setGLDrawable(null, true); // dis-associate
}
if(null != proxySurface) {
proxySurface.enableUpstreamSurfaceHookLifecycle(false);
}
try {
drawable.setRealized(false);
drawable = (GLDrawableImpl) factory.createGLDrawable(surface); // [2]
drawable.setRealized(true);
} finally {
if(null != proxySurface) {
proxySurface.enableUpstreamSurfaceHookLifecycle(true);
}
}
if(null != context) {
context.setGLDrawable(drawable, true); // re-association
}
if( null != currentContext ) {
currentContext.makeCurrent();
}
return drawable;
}
/**
* Performs resize operation on the given drawable, assuming it is offscreen.
*
* The {@link GLDrawableImpl}'s {@link NativeSurface} is being locked during operation.
* In case the holder is an auto drawable or similar, it's lock shall be claimed by the caller.
*
*
* May recreate the drawable via {@link #recreateGLDrawable(GLDrawableImpl, GLContext)}
* in case of a a pbuffer- or pixmap-drawable.
*
*
* FBO drawables are resized w/o drawable destruction.
*
*
* Offscreen resize operation is validated w/ drawable size in the end.
* An exception is thrown if not successful.
*
*
* @param drawable
* @param context
* @param newWidth the new width, it's minimum is capped to 1
* @param newHeight the new height, it's minimum is capped to 1
* @return the new drawable in case of an pbuffer/pixmap drawable, otherwise the passed drawable is being returned.
* @throws NativeWindowException is drawable is not offscreen or it's surface lock couldn't be claimed
* @throws GLException may be thrown a resize operation
*/
public static final GLDrawableImpl resizeOffscreenDrawable(GLDrawableImpl drawable, GLContext context, int newWidth, int newHeight)
throws NativeWindowException, GLException
{
if(drawable.getChosenGLCapabilities().isOnscreen()) {
throw new NativeWindowException("Drawable is not offscreen: "+drawable);
}
final NativeSurface ns = drawable.getNativeSurface();
final int lockRes = ns.lockSurface();
if (NativeSurface.LOCK_SURFACE_NOT_READY >= lockRes) {
throw new NativeWindowException("Could not lock surface of drawable: "+drawable);
}
boolean validateSize = true;
try {
if(DEBUG && ( 0>=newWidth || 0>=newHeight) ) {
System.err.println("WARNING: Odd size detected: "+newWidth+"x"+newHeight+", using safe size 1x1. Drawable "+drawable);
Thread.dumpStack();
}
if(0>=newWidth) { newWidth = 1; validateSize=false; }
if(0>=newHeight) { newHeight = 1; validateSize=false; }
// propagate new size
if(ns instanceof ProxySurface) {
final ProxySurface ps = (ProxySurface) ns;
final UpstreamSurfaceHook ush = ps.getUpstreamSurfaceHook();
if(ush instanceof UpstreamSurfaceHook.MutableSize) {
((UpstreamSurfaceHook.MutableSize)ush).setSize(newWidth, newHeight);
} else if(DEBUG) { // we have to assume UpstreamSurfaceHook contains the new size already, hence size check @ bottom
System.err.println("GLDrawableHelper.resizeOffscreenDrawable: Drawable's offscreen ProxySurface n.a. UpstreamSurfaceHook.MutableSize, but "+ush.getClass().getName()+": "+ush);
}
} else if(DEBUG) { // we have to assume surface contains the new size already, hence size check @ bottom
System.err.println("GLDrawableHelper.resizeOffscreenDrawable: Drawable's offscreen surface n.a. ProxySurface, but "+ns.getClass().getName()+": "+ns);
}
if(drawable instanceof GLFBODrawable) {
if( null != context && context.isCreated() ) {
((GLFBODrawable) drawable).resetSize(context.getGL());
}
} else {
drawable = GLDrawableHelper.recreateGLDrawable(drawable, context);
}
} finally {
ns.unlockSurface();
}
if( validateSize && ( drawable.getWidth() != newWidth || drawable.getHeight() != newHeight ) ) {
throw new InternalError("Incomplete resize operation: expected "+newWidth+"x"+newHeight+", has: "+drawable);
}
return drawable;
}
public final void addGLEventListener(GLEventListener listener) {
addGLEventListener(-1, listener);
}
public final void addGLEventListener(int index, GLEventListener listener) {
synchronized(listenersLock) {
if(0>index) {
index = listeners.size();
}
// GLEventListener may be added after context is created,
// hence we earmark initialization for the next display call.
listenersToBeInit.add(listener);
listeners.add(index, listener);
}
}
/**
* Note that no {@link GLEventListener#dispose(GLAutoDrawable)} call is being issued
* due to the lack of a current context.
* Consider calling {@link #disposeGLEventListener(GLAutoDrawable, GLDrawable, GLContext, GLEventListener)}.
* @return the removed listener, or null if listener was not added
*/
public final GLEventListener removeGLEventListener(GLEventListener listener) {
synchronized(listenersLock) {
listenersToBeInit.remove(listener);
return listeners.remove(listener) ? listener : null;
}
}
public final GLEventListener removeGLEventListener(int index) throws IndexOutOfBoundsException {
synchronized(listenersLock) {
if(0>index) {
index = listeners.size()-1;
}
final GLEventListener listener = listeners.remove(index);
listenersToBeInit.remove(listener);
return listener;
}
}
public final int getGLEventListenerCount() {
synchronized(listenersLock) {
return listeners.size();
}
}
public final GLEventListener getGLEventListener(int index) throws IndexOutOfBoundsException {
synchronized(listenersLock) {
if(0>index) {
index = listeners.size()-1;
}
return listeners.get(index);
}
}
public final boolean getGLEventListenerInitState(GLEventListener listener) {
synchronized(listenersLock) {
return !listenersToBeInit.contains(listener);
}
}
public final void setGLEventListenerInitState(GLEventListener listener, boolean initialized) {
synchronized(listenersLock) {
if(initialized) {
listenersToBeInit.remove(listener);
} else {
listenersToBeInit.add(listener);
}
}
}
/**
* Disposes the given {@link GLEventListener} via {@link GLEventListener#dispose(GLAutoDrawable)}
* if it has been initialized and added to this queue.
*
* If remove is true, the {@link GLEventListener} is removed from this drawable queue before disposal,
* otherwise marked uninitialized.
*
*
* Please consider using {@link #disposeGLEventListener(GLAutoDrawable, GLDrawable, GLContext, GLEventListener)}
* for correctness, i.e. encapsulating all calls w/ makeCurrent etc.
*
* @param autoDrawable
* @param remove if true, the listener gets removed
* @return the disposed and/or removed listener, otherwise null if neither action is performed
*/
public final GLEventListener disposeGLEventListener(GLAutoDrawable autoDrawable, GLEventListener listener, boolean remove) {
synchronized(listenersLock) {
if( remove ) {
if( listeners.remove(listener) ) {
if( !listenersToBeInit.remove(listener) ) {
listener.dispose(autoDrawable);
}
return listener;
}
} else {
if( listeners.contains(listener) && !listenersToBeInit.contains(listener) ) {
listener.dispose(autoDrawable);
listenersToBeInit.add(listener);
return listener;
}
}
}
return null;
}
/**
* Disposes all added initialized {@link GLEventListener}s via {@link GLEventListener#dispose(GLAutoDrawable)}.
*
* If remove is true, the {@link GLEventListener}s are removed from this drawable queue before disposal,
* otherwise maked uninitialized.
*
*
* Please consider using {@link #disposeAllGLEventListener(GLAutoDrawable, GLContext, boolean)}
* or {@link #disposeGL(GLAutoDrawable, GLContext, boolean)}
* for correctness, i.e. encapsulating all calls w/ makeCurrent etc.
*
* @param autoDrawable
* @return the disposal count
*/
public final int disposeAllGLEventListener(GLAutoDrawable autoDrawable, boolean remove) {
int disposeCount = 0;
synchronized(listenersLock) {
if( remove ) {
for (int count = listeners.size(); 0 < count && 0 < listeners.size(); count--) {
final GLEventListener listener = listeners.remove(0);
if( !listenersToBeInit.remove(listener) ) {
listener.dispose(autoDrawable);
disposeCount++;
}
}
} else {
for (int i = 0; i < listeners.size(); i++) {
final GLEventListener listener = listeners.get(i);
if( !listenersToBeInit.contains(listener) ) {
listener.dispose(autoDrawable);
listenersToBeInit.add(listener);
disposeCount++;
}
}
}
}
return disposeCount;
}
/**
* Principal helper method which runs {@link #disposeGLEventListener(GLAutoDrawable, GLEventListener, boolean)}
* with the context made current.
*
* If an {@link GLAnimatorControl} is being attached and the current thread is different
* than {@link GLAnimatorControl#getThread() the animator's thread}, it is paused during the operation.
*
*
* @param autoDrawable
* @param context
* @param listener
* @param initAction
*/
public final GLEventListener disposeGLEventListener(final GLAutoDrawable autoDrawable,
final GLDrawable drawable,
final GLContext context,
final GLEventListener listener,
final boolean remove) {
synchronized(listenersLock) {
// fast path for uninitialized listener
if( listenersToBeInit.contains(listener) ) {
if( remove ) {
listenersToBeInit.remove(listener);
return listeners.remove(listener) ? listener : null;
}
return null;
}
}
final boolean isPaused = isAnimatorAnimatingOnOtherThread() && animatorCtrl.pause();
final GLEventListener[] res = new GLEventListener[] { null };
final Runnable action = new Runnable() {
public void run() {
res[0] = disposeGLEventListener(autoDrawable, listener, remove);
}
};
invokeGL(drawable, context, action, nop);
if(isPaused) {
animatorCtrl.resume();
}
return res[0];
}
/**
* Principal helper method which runs {@link #disposeAllGLEventListener(GLAutoDrawable, boolean)}
* with the context made current.
*
* If an {@link GLAnimatorControl} is being attached and the current thread is different
* than {@link GLAnimatorControl#getThread() the animator's thread}, it is paused during the operation.
*
*
* @param autoDrawable
* @param context
* @param remove
*/
public final void disposeAllGLEventListener(final GLAutoDrawable autoDrawable,
final GLDrawable drawable,
final GLContext context,
final boolean remove) {
final boolean isPaused = isAnimatorAnimatingOnOtherThread() && animatorCtrl.pause();
final Runnable action = new Runnable() {
public void run() {
disposeAllGLEventListener(autoDrawable, remove);
}
};
invokeGL(drawable, context, action, nop);
if(isPaused) {
animatorCtrl.resume();
}
}
private final void init(GLEventListener l, GLAutoDrawable drawable, boolean sendReshape, boolean setViewport) {
l.init(drawable);
if(sendReshape) {
reshape(l, drawable, 0, 0, drawable.getWidth(), drawable.getHeight(), setViewport, false /* checkInit */);
}
}
/**
* The default init action to be called once after ctx is being created @ 1st makeCurrent().
* @param sendReshape set to true if the subsequent display call won't reshape, otherwise false to avoid double reshape.
**/
public final void init(GLAutoDrawable drawable, boolean sendReshape) {
synchronized(listenersLock) {
final ArrayList _listeners = listeners;
final int listenerCount = _listeners.size();
if( listenerCount > 0 ) {
for (int i=0; i < listenerCount; i++) {
final GLEventListener listener = _listeners.get(i) ;
// If make ctx current, invoked by invokGL(..), results in a new ctx, init gets called.
// This may happen not just for initial setup, but for ctx recreation due to resource change (drawable/window),
// hence it must be called unconditional, always.
listenersToBeInit.remove(listener); // remove if exist, avoiding dbl init
init( listener, drawable, sendReshape, 0==i /* setViewport */);
}
} else {
// Expose same GL initialization if not using GLEventListener
drawable.getGL().glViewport(0, 0, drawable.getWidth(), drawable.getHeight());
}
}
}
public final void display(GLAutoDrawable drawable) {
displayImpl(drawable);
if( glRunnables.size()>0 && !execGLRunnables(drawable) ) { // glRunnables volatile OK; execGL.. only executed if size > 0
displayImpl(drawable);
}
}
private final void displayImpl(GLAutoDrawable drawable) {
synchronized(listenersLock) {
final ArrayList _listeners = listeners;
final int listenerCount = _listeners.size();
for (int i=0; i < listenerCount; i++) {
final GLEventListener listener = _listeners.get(i) ;
// GLEventListener may need to be init,
// in case this one is added after the realization of the GLAutoDrawable
if( listenersToBeInit.remove(listener) ) {
init( listener, drawable, true /* sendReshape */, listenersToBeInit.size() + 1 == listenerCount /* setViewport if 1st init */ );
}
listener.display(drawable);
}
}
}
private final void reshape(GLEventListener listener, GLAutoDrawable drawable,
int x, int y, int width, int height, boolean setViewport, boolean checkInit) {
if(checkInit) {
// GLEventListener may need to be init,
// in case this one is added after the realization of the GLAutoDrawable
synchronized(listenersLock) {
if( listenersToBeInit.remove(listener) ) {
listener.init(drawable);
}
}
}
if(setViewport) {
drawable.getGL().glViewport(x, y, width, height);
}
listener.reshape(drawable, x, y, width, height);
}
public final void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
synchronized(listenersLock) {
for (int i=0; i < listeners.size(); i++) {
reshape((GLEventListener) listeners.get(i), drawable, x, y, width, height, 0==i /* setViewport */, true /* checkInit */);
}
}
}
private final boolean execGLRunnables(GLAutoDrawable drawable) { // glRunnables.size()>0
boolean res = true;
// swap one-shot list asap
final ArrayList _glRunnables;
synchronized(glRunnablesLock) {
if(glRunnables.size()>0) {
_glRunnables = glRunnables;
glRunnables = new ArrayList();
} else {
_glRunnables = null;
}
}
if(null!=_glRunnables) {
for (int i=0; i < _glRunnables.size(); i++) {
res = _glRunnables.get(i).run(drawable) && res;
}
}
return res;
}
public final void flushGLRunnables() {
if(glRunnables.size()>0) { // volatile OK
// swap one-shot list asap
final ArrayList _glRunnables;
synchronized(glRunnablesLock) {
if(glRunnables.size()>0) {
_glRunnables = glRunnables;
glRunnables = new ArrayList();
} else {
_glRunnables = null;
}
}
if(null!=_glRunnables) {
for (int i=0; i < _glRunnables.size(); i++) {
_glRunnables.get(i).flush();
}
}
}
}
public final void setAnimator(GLAnimatorControl animator) throws GLException {
synchronized(glRunnablesLock) {
if(animatorCtrl!=animator && null!=animator && null!=animatorCtrl) {
throw new GLException("Trying to register GLAnimatorControl "+animator+", where "+animatorCtrl+" is already registered. Unregister first.");
}
animatorCtrl = animator;
}
}
public final GLAnimatorControl getAnimator() {
synchronized(glRunnablesLock) {
return animatorCtrl;
}
}
public final boolean isAnimatorStartedOnOtherThread() {
return ( null != animatorCtrl ) ? animatorCtrl.isStarted() && animatorCtrl.getThread() != Thread.currentThread() : false ;
}
public final boolean isAnimatorStarted() {
return ( null != animatorCtrl ) ? animatorCtrl.isStarted() : false ;
}
public final boolean isAnimatorAnimatingOnOtherThread() {
return ( null != animatorCtrl ) ? animatorCtrl.isAnimating() && animatorCtrl.getThread() != Thread.currentThread() : false ;
}
public final boolean isAnimatorAnimating() {
return ( null != animatorCtrl ) ? animatorCtrl.isAnimating() : false ;
}
/**
*
* If wait is true the call blocks until the glRunnable
* has been executed.
*
* If wait is true and
* {@link GLDrawable#isRealized()} returns false or {@link GLAutoDrawable#getContext()} returns null,
* the call is ignored and returns false.
* This helps avoiding deadlocking the caller.
*
*
* @param drawable the {@link GLAutoDrawable} to be used
* @param wait if true block until execution of glRunnable is finished, otherwise return immediatly w/o waiting
* @param glRunnable the {@link GLRunnable} to execute within {@link #display()}
* @return true if the {@link GLRunnable} has been processed or queued, otherwise false.
*/
public final boolean invoke(GLAutoDrawable drawable, boolean wait, GLRunnable glRunnable) {
if( null == glRunnable || null == drawable ||
wait && ( !drawable.isRealized() || null==drawable.getContext() ) ) {
return false;
}
GLRunnableTask rTask = null;
Object rTaskLock = new Object();
Throwable throwable = null;
synchronized(rTaskLock) {
final boolean deferred;
synchronized(glRunnablesLock) {
deferred = isAnimatorAnimatingOnOtherThread();
if(!deferred) {
wait = false; // don't wait if exec immediatly
}
rTask = new GLRunnableTask(glRunnable,
wait ? rTaskLock : null,
wait /* catch Exceptions if waiting for result */);
glRunnables.add(rTask);
}
if( !deferred ) {
drawable.display();
} else if( wait ) {
try {
rTaskLock.wait(); // free lock, allow execution of rTask
} catch (InterruptedException ie) {
throwable = ie;
}
if(null==throwable) {
throwable = rTask.getThrowable();
}
if(null!=throwable) {
throw new RuntimeException(throwable);
}
}
}
return true;
}
public final boolean invoke(GLAutoDrawable drawable, boolean wait, List newGLRunnables) {
if( null == newGLRunnables || newGLRunnables.size() == 0 || null == drawable ||
wait && ( !drawable.isRealized() || null==drawable.getContext() ) ) {
return false;
}
final int count = newGLRunnables.size();
GLRunnableTask rTask = null;
Object rTaskLock = new Object();
Throwable throwable = null;
synchronized(rTaskLock) {
final boolean deferred;
synchronized(glRunnablesLock) {
deferred = isAnimatorAnimatingOnOtherThread() || !drawable.isRealized();
if(!deferred) {
wait = false; // don't wait if exec immediately
}
for(int i=0; i exclusiveContextSwitch ? "released" : "claimed" ) ;
}
/**
* Dedicates this instance's {@link GLContext} to the given thread.
* The thread will exclusively claim the {@link GLContext} via {@link #display()} and not release it
* until {@link #destroy()} or setExclusiveContextThread(null) has been called.
*
* Default non-exclusive behavior is requested via setExclusiveContextThread(null),
* which will cause the next call of {@link #display()} on the exclusive thread to
* release the {@link GLContext}. Only after it's async release, {@link #getExclusiveContextThread()}
* will return null.
*
*
* To release a previous made exclusive thread, a user issues setExclusiveContextThread(null)
* and may poll {@link #getExclusiveContextThread()} until it returns null,
* while the exclusive thread is still running.
*
*
* Note: Setting a new exclusive thread without properly releasing a previous one
* will throw an GLException.
*
*
* One scenario could be to dedicate the context to the {@link com.jogamp.opengl.util.AnimatorBase#getThread() animator thread}
* and spare redundant context switches.
*
* @param t the exclusive thread to claim the context, or null for default operation.
* @return previous exclusive context thread
* @throws GLException If an exclusive thread is still active but a new one is attempted to be set
*/
public final Thread setExclusiveContextThread(Thread t, GLContext context) throws GLException {
if (DEBUG) {
System.err.println("GLDrawableHelper.setExclusiveContextThread(): START switch "+getExclusiveContextSwitchString()+", thread "+exclusiveContextThread+" -> "+t+" -- currentThread "+Thread.currentThread());
}
final Thread oldExclusiveContextThread = exclusiveContextThread;
if( exclusiveContextThread == t ) {
exclusiveContextSwitch = 0; // keep
} else if( null == t ) {
exclusiveContextSwitch = -1; // release
} else {
exclusiveContextSwitch = 1; // claim
if( null != exclusiveContextThread ) {
throw new GLException("Release current exclusive Context Thread "+exclusiveContextThread+" first");
}
if( null != context && context.isCurrent() ) {
try {
forceNativeRelease(context);
} catch (Throwable ex) {
ex.printStackTrace();
throw new GLException(ex);
}
}
exclusiveContextThread = t;
}
if (DEBUG) {
System.err.println("GLDrawableHelper.setExclusiveContextThread(): END switch "+getExclusiveContextSwitchString()+", thread "+exclusiveContextThread+" -- currentThread "+Thread.currentThread());
}
return oldExclusiveContextThread;
}
/**
* @see #setExclusiveContextThread(Thread, GLContext)
*/
public final Thread getExclusiveContextThread() {
return exclusiveContextThread;
}
private static final ThreadLocal perThreadInitAction = new ThreadLocal();
/** Principal helper method which runs a Runnable with the context
made current. This could have been made part of GLContext, but a
desired goal is to be able to implement GLAutoDrawable's in terms of
the GLContext's public APIs, and putting it into a separate
class helps ensure that we don't inadvertently use private
methods of the GLContext or its implementing classes.
Note: Locking of the surface is implicit done by {@link GLContext#makeCurrent()},
where unlocking is performed by the latter {@link GLContext#release()}.
*
* @param drawable
* @param context
* @param runnable
* @param initAction
*/
public final void invokeGL(final GLDrawable drawable,
final GLContext context,
final Runnable runnable,
final Runnable initAction) {
if(null==context) {
if (DEBUG) {
Exception e = new GLException(getThreadName()+" Info: GLDrawableHelper " + this + ".invokeGL(): NULL GLContext");
e.printStackTrace();
}
return;
}
if(PERF_STATS) {
invokeGLImplStats(drawable, context, runnable, initAction);
} else {
invokeGLImpl(drawable, context, runnable, initAction);
}
}
/**
* Principal helper method which runs
* {@link #disposeAllGLEventListener(GLAutoDrawable, boolean) disposeAllGLEventListener(autoDrawable, false)}
* with the context made current.
*
* If destroyContext is true the context is destroyed in the end while holding the lock.
*
*
* If destroyContext is false the context is natively released, i.e. released as often as locked before.
*
* @param autoDrawable
* @param context
* @param destroyContext destroy context in the end while holding the lock
*/
public final void disposeGL(final GLAutoDrawable autoDrawable,
final GLContext context, boolean destroyContext) {
// Support for recursive makeCurrent() calls as well as calling
// other drawables' display() methods from within another one's
GLContext lastContext = GLContext.getCurrent();
Runnable lastInitAction = null;
if (lastContext != null) {
if (lastContext == context) {
lastContext = null;
} else {
// utilize recursive locking
lastInitAction = perThreadInitAction.get();
lastContext.release();
}
}
int res;
try {
res = context.makeCurrent();
if (GLContext.CONTEXT_NOT_CURRENT != res) {
if(GLContext.CONTEXT_CURRENT_NEW == res) {
throw new GLException(getThreadName()+" GLDrawableHelper " + this + ".invokeGL(): Dispose case (no init action given): Native context was not created (new ctx): "+context);
}
if( listeners.size() > 0 && null != autoDrawable ) {
disposeAllGLEventListener(autoDrawable, false);
}
}
} finally {
try {
if(destroyContext) {
context.destroy();
} else {
forceNativeRelease(context);
}
flushGLRunnables();
} catch (Exception e) {
System.err.println("Catched Exception on thread "+getThreadName());
e.printStackTrace();
}
if (lastContext != null) {
final int res2 = lastContext.makeCurrent();
if (null != lastInitAction && res2 == GLContext.CONTEXT_CURRENT_NEW) {
lastInitAction.run();
}
}
}
}
private final void invokeGLImpl(final GLDrawable drawable,
final GLContext context,
final Runnable runnable,
final Runnable initAction) {
final Thread currentThread = Thread.currentThread();
// Exclusive Cases:
// 1: lock - unlock : default
// 2: lock - - : exclusive, not locked yet
// 3: - - - : exclusive, already locked
// 4: - - unlock : ex-exclusive, already locked
final boolean _isExclusiveThread, _releaseExclusiveThread;
if( null != exclusiveContextThread) {
if( currentThread == exclusiveContextThread ) {
_releaseExclusiveThread = 0 > exclusiveContextSwitch;
_isExclusiveThread = !_releaseExclusiveThread;
exclusiveContextSwitch = 0;
} else {
// Exclusive thread usage, but on other thread
return;
}
} else {
_releaseExclusiveThread = false;
_isExclusiveThread = false;
}
// Support for recursive makeCurrent() calls as well as calling
// other drawables' display() methods from within another one's
int res = GLContext.CONTEXT_NOT_CURRENT;
GLContext lastContext = GLContext.getCurrent();
Runnable lastInitAction = null;
if (lastContext != null) {
if (lastContext == context) {
res = GLContext.CONTEXT_CURRENT;
lastContext = null;
} else {
// utilize recursive locking
lastInitAction = perThreadInitAction.get();
lastContext.release();
}
}
try {
final boolean releaseContext;
if( GLContext.CONTEXT_NOT_CURRENT == res ) {
res = context.makeCurrent();
releaseContext = !_isExclusiveThread;
} else {
releaseContext = _releaseExclusiveThread;
}
if (GLContext.CONTEXT_NOT_CURRENT != res) {
try {
perThreadInitAction.set(initAction);
if (GLContext.CONTEXT_CURRENT_NEW == res) {
if (DEBUG) {
System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running initAction");
}
initAction.run();
}
runnable.run();
if ( autoSwapBufferMode ) {
drawable.swapBuffers();
}
} finally {
if( _releaseExclusiveThread ) {
exclusiveContextThread = null;
if (DEBUG) {
System.err.println("GLDrawableHelper.invokeGL() - Release ExclusiveContextThread -- currentThread "+Thread.currentThread());
}
}
if( releaseContext ) {
try {
context.release();
} catch (Exception e) {
System.err.println("Catched Exception on thread "+getThreadName());
e.printStackTrace();
}
}
}
}
} finally {
if (lastContext != null) {
final int res2 = lastContext.makeCurrent();
if (null != lastInitAction && res2 == GLContext.CONTEXT_CURRENT_NEW) {
lastInitAction.run();
}
}
}
}
private final void invokeGLImplStats(final GLDrawable drawable,
final GLContext context,
final Runnable runnable,
final Runnable initAction) {
final Thread currentThread = Thread.currentThread();
// Exclusive Cases:
// 1: lock - unlock : default
// 2: lock - - : exclusive, not locked yet
// 3: - - - : exclusive, already locked
// 4: - - unlock : ex-exclusive, already locked
final boolean _isExclusiveThread, _releaseExclusiveThread;
if( null != exclusiveContextThread) {
if( currentThread == exclusiveContextThread ) {
_releaseExclusiveThread = 0 > exclusiveContextSwitch;
_isExclusiveThread = !_releaseExclusiveThread;
} else {
// Exclusive thread usage, but on other thread
return;
}
} else {
_releaseExclusiveThread = false;
_isExclusiveThread = false;
}
// Support for recursive makeCurrent() calls as well as calling
// other drawables' display() methods from within another one's
int res = GLContext.CONTEXT_NOT_CURRENT;
GLContext lastContext = GLContext.getCurrent();
Runnable lastInitAction = null;
if (lastContext != null) {
if (lastContext == context) {
res = GLContext.CONTEXT_CURRENT;
lastContext = null;
} else {
// utilize recursive locking
lastInitAction = perThreadInitAction.get();
lastContext.release();
}
}
long t0 = System.currentTimeMillis();
long tdA = 0; // makeCurrent
long tdR = 0; // render time
long tdS = 0; // swapBuffers
long tdX = 0; // release
boolean ctxClaimed = false;
boolean ctxReleased = false;
boolean ctxDestroyed = false;
try {
final boolean releaseContext;
if( GLContext.CONTEXT_NOT_CURRENT == res ) {
res = context.makeCurrent();
releaseContext = !_isExclusiveThread;
ctxClaimed = true;
} else {
releaseContext = _releaseExclusiveThread;
}
if (GLContext.CONTEXT_NOT_CURRENT != res) {
try {
perThreadInitAction.set(initAction);
if (GLContext.CONTEXT_CURRENT_NEW == res) {
if (DEBUG) {
System.err.println("GLDrawableHelper " + this + ".invokeGL(): Running initAction");
}
initAction.run();
}
tdR = System.currentTimeMillis();
tdA = tdR - t0; // makeCurrent
runnable.run();
tdS = System.currentTimeMillis();
tdR = tdS - tdR; // render time
if ( autoSwapBufferMode ) {
drawable.swapBuffers();
tdX = System.currentTimeMillis();
tdS = tdX - tdS; // swapBuffers
}
} finally {
if( _releaseExclusiveThread ) {
exclusiveContextSwitch = 0;
exclusiveContextThread = null;
if (DEBUG) {
System.err.println("GLDrawableHelper.invokeGL() - Release ExclusiveContextThread -- currentThread "+Thread.currentThread());
}
}
if( releaseContext ) {
try {
context.release();
ctxReleased = true;
} catch (Exception e) {
System.err.println("Catched Exception on thread "+getThreadName());
e.printStackTrace();
}
}
}
}
} finally {
tdX = System.currentTimeMillis() - tdX; // release / destroy
if (lastContext != null) {
final int res2 = lastContext.makeCurrent();
if (null != lastInitAction && res2 == GLContext.CONTEXT_CURRENT_NEW) {
lastInitAction.run();
}
}
}
long td = System.currentTimeMillis() - t0;
System.err.println("td0 "+td+"ms, fps "+(1.0/(td/1000.0))+", td-makeCurrent: "+tdA+"ms, td-render "+tdR+"ms, td-swap "+tdS+"ms, td-release "+tdX+"ms, ctx claimed: "+ctxClaimed+", ctx release: "+ctxReleased+", ctx destroyed "+ctxDestroyed);
}
protected static String getThreadName() { return Thread.currentThread().getName(); }
}