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QtJambi + JOGL + Ubuntu (Lucid)

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musa

QtJambi + JOGL + Ubuntu (Lucid)

Hello,

is anyone using this configuration?

I have simple code that works fine under Windows, but I get following exception when run under Linux.
(not a single hit when searching Google) :

Info: XInitThreads() called for concurrent Thread support
QtJambi: Exception pending in native code in file '../cpp/com_trolltech_qt_opengl/qtjambishell_QGLWidget.cpp':774
Exception in thread "main" javax.media.opengl.GLException: Error: current context null
at com.jogamp.opengl.impl.x11.glx.X11ExternalGLXContext.create(X11ExternalGLXContext.java:64)
at com.jogamp.opengl.impl.x11.glx.X11GLXDrawableFactory.createExternalGLContext(X11GLXDrawableFactory.java:250)
at net.musanek.vlt.jogl.GLWidget.initializeGL(GLWidget.java:43)
at com.trolltech.qt.gui.QWidget.__qt_show(Native Method)
at com.trolltech.qt.gui.QWidget.show(QWidget.java:2254)
at net.musanek.vlt.jogl.GLWidget.main(GLWidget.java:228)

Thanks for help

Michael Bien

Re: QtJambi + JOGL + Ubuntu (Lucid)

sorry, I don't know QtJambi.

but if you could somehow build a small testcase to reproduce the issue (without native code if possible)... always welcome

regards,

michael

On 06/20/2010 08:00 PM, musa [via jogamp] wrote:

Hello,

is anyone using this configuration?

I have simple code that works fine under Windows, but I get following exception when run under Linux.
(not a single hit when searching Google) :

Info: XInitThreads() called for concurrent Thread support
QtJambi: Exception pending in native code in file '../cpp/com_trolltech_qt_opengl/qtjambishell_QGLWidget.cpp':774
Exception in thread "main" javax.media.opengl.GLException: Error: current context null
at com.jogamp.opengl.impl.x11.glx.X11ExternalGLXContext.create(X11ExternalGLXContext.java:64)
at com.jogamp.opengl.impl.x11.glx.X11GLXDrawableFactory.createExternalGLContext(X11GLXDrawableFactory.java:250)
at net.musanek.vlt.jogl.GLWidget.initializeGL(GLWidget.java:43)
at com.trolltech.qt.gui.QWidget.__qt_show(Native Method)
at com.trolltech.qt.gui.QWidget.show(QWidget.java:2254)
at net.musanek.vlt.jogl.GLWidget.main(GLWidget.java:228)

Thanks for help

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musa

Re: QtJambi + JOGL + Ubuntu (Lucid)

Hello Michael,

thanks for reply.
I did test it again in Windows and get error as well, but the exception was clear as oppose to Linux and helped me to fix it.
The previous test I made in windows was using older version of jogl taken from some example.

The problem was in setting the context in Qt using context().makeCurrent(); (I was expecting this to be set in this method) :

public void initializeGL() {

GLProfile profile = GLProfile.get(GLProfile.GL2);
GLDrawableFactory factory = GLDrawableFactory.getFactory(profile);
context().makeCurrent();
ctx = factory.createExternalGLContext();
ctx.makeCurrent();
gl = ctx.getGL().getGL2();
glu = new GLU();
glut = new GLUT();
}

This code works.

It still throws some Info at the start and SIGSEGV when closing but it works.

Info: XInitThreads() called for concurrent Thread support

#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007f9e4f5173c4, pid=2216, tid=140317892855568
#
# JRE version: 6.0_20-b02
# Java VM: Java HotSpot(TM) 64-Bit Server VM (16.3-b01 mixed mode linux-amd64 )
# Problematic frame:
# C [libpthread.so.0+0x93c4] pthread_mutex_lock+0x4
#
# An error report file with more information is saved as:
# /home/musa/data/eclipse/jogl/hs_err_pid2216.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.

Michael Bien

Re: QtJambi + JOGL + Ubuntu (Lucid)

great. The SIGSEGV on exit should be fixed in the newer builds. But work is still going on in this area (locking/multithreading).

regards,
michael

On 06/22/2010 10:59 PM, musa [via jogamp] wrote:

Hello Michael,

thanks for reply.
I did test it again in Windows and get error as well, but the exception was clear as oppose to Linux and helped me to fix it.
The previous test I made in windows was using older version of jogl taken from some example.

The problem was in setting the context in Qt using context().makeCurrent(); (I was expecting this to be set in this method) :

public void initializeGL() {

GLProfile profile = GLProfile.get(GLProfile.GL2);
GLDrawableFactory factory = GLDrawableFactory.getFactory(profile);
context().makeCurrent();
ctx = factory.createExternalGLContext();
ctx.makeCurrent();
gl = ctx.getGL().getGL2();
glu = new GLU();
glut = new GLUT();
}

This code works.

It still throws some Info at the start and SIGSEGV when closing but it works.

Info: XInitThreads() called for concurrent Thread support

#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007f9e4f5173c4, pid=2216, tid=140317892855568
#
# JRE version: 6.0_20-b02
# Java VM: Java HotSpot(TM) 64-Bit Server VM (16.3-b01 mixed mode linux-amd64 )
# Problematic frame:
# C [libpthread.so.0+0x93c4] pthread_mutex_lock+0x4
#
# An error report file with more information is saved as:
# /home/musa/data/eclipse/jogl/hs_err_pid2216.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.

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Sven Gothel

Re: QtJambi + JOGL + Ubuntu (Lucid)

Administrator

In reply to this post by musa

On Tuesday, June 22, 2010 11:59:56 pm musa [via jogamp] wrote:

>
> Hello Michael,
>
> thanks for reply.
> I did test it again in Windows and get error as well, but the exception was
> clear as oppose to Linux and helped me to fix it.
> The previous test I made in windows was using older version of jogl taken
> from some example.
>
> The problem was in setting the context in Qt using context().makeCurrent();
> (I was expecting this to be set in this method) :
>
> public void initializeGL() {
>
> GLProfile profile = GLProfile.get(GLProfile.GL2);
> GLDrawableFactory factory = GLDrawableFactory.getFactory(profile);
> context().makeCurrent();
> ctx = factory.createExternalGLContext();
> ctx.makeCurrent();
> gl = ctx.getGL().getGL2();
> glu = new GLU();
> glut = new GLUT();
> }
>
> This code works.
>
> It still throws some Info at the start and SIGSEGV when closing but it
> works.
>
> Info: XInitThreads() called for concurrent Thread support

Don't know QtJambi, but if you _can_,
please call XInitThreads() as the very first X11 methods in your application.
Read the manual of it ..

Cheers, Sven

>
> #
> # A fatal error has been detected by the Java Runtime Environment:
> #
> # SIGSEGV (0xb) at pc=0x00007f9e4f5173c4, pid=2216, tid=140317892855568
> #
> # JRE version: 6.0_20-b02
> # Java VM: Java HotSpot(TM) 64-Bit Server VM (16.3-b01 mixed mode
> linux-amd64 )
> # Problematic frame:
> # C [libpthread.so.0+0x93c4] pthread_mutex_lock+0x4
> #
> # An error report file with more information is saved as:
> # /home/musa/data/eclipse/jogl/hs_err_pid2216.log
> #
> # If you would like to submit a bug report, please visit:
> # http://java.sun.com/webapps/bugreport/crash.jsp
> # The crash happened outside the Java Virtual Machine in native code.
> # See problematic frame for where to report the bug.
>
>
>
> ______________________________________
> View message @ http://jogamp.762907.n3.nabble.com/QtJambi-JOGL-Ubuntu-Lucid-tp909554p915308.html
> To start a new topic under jogamp, email [hidden email]
> To unsubscribe from jogamp, click http://jogamp.762907.n3.nabble.com/subscriptions/Unsubscribe.jtp?code=c2dvdGhlbEBqYXVzb2Z0LmNvbXw3NjI5MDd8MzkxNDI4MzU5
>

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