Re: [gl4java-usergroup] GL4Java + Linux +Nvidia crash

[Tomas K. <kar...@ag...>]

Hi Tomasz

I've also experinced the same problem with GL4Java + Redhat + Nvidia.
It seems that the problem is related to a bug in GL4Java with nvidia
drivers.
Try to compile GL4Java from the latest source from the cvs, that should do
the trick.

Cheers
Tomas

----- Original Message -----
From: "Tomasz Sztejka" <szt...@ya...>
To: <gl4...@li...>
Sent: Saturday, March 22, 2003 2:08 PM
Subject: [gl4java-usergroup] GL4Java + Linux +Nvidia crash


> Hi,
>  I just started to leard openGL with famous GL4Java library and got
> some problems which I'm not able to solve by mylsef.
>  My OS configuration is:
>    Linux Debian 3.0, GL4Java 2.8.2.0, j2sdk1.4.1 Blackdown.org, Nvidia
> GForce2 drivers from nvidia.com(games are working ok, so driver works).
>
>  I composed this simple program below from demos examples (this is
> demos/ronsDemos/animApplet.skel based). As you can see it does nothing
> except trying to run few gl commands on animation thread. Once i run it
> it crashes after openning window with message:
> ----------------------------
> init(): X$myappletCanvas[canvas0,4,20,42x29]
>
> An unexpected exception has been detected in native code outside the
> VM.
> Unexpected Signal : 11 occurred at PC=0x4C97E188
> Function=__nvsym17103+0x0
> Library=/usr/lib/libGL.so
>
> Current Java thread:
>         at gl4java.GLContext.gljMakeCurrentNative(Native Method)
>         at gl4java.GLContext.gljMakeCurrent(GLContext.java:2472)
>         - locked <0x44184330> (a gl4java.GLContext)
>         at gl4java.awt.GLCanvas.sDisplay(GLCanvas.java:697)
>         at gl4java.awt.GLAnimCanvas.run(GLAnimCanvas.java:466)
>         at java.lang.Thread.run(Thread.java:536)
>
> Dynamic libraries:
> 08048000-0804d000 r-xp 00000000 03:03 291350
> /usr/local/j2sdk1.4.1/bin/java
> ....
> ----------------------------
>
>  I have seen some threads on this forum mentioning similar problems,
> but answers were not enough detailed for me to be helpfull (I'm pretty
> new Linux user).
>
>   regards,
>     Tomasz Sztejka.
>
> This is my problematic code:
>
> public class X extends Frame
> {
>     myappletCanvas canvas = null;
> public static void main(String [] ar)
> {
> X x = new X();
> x.init();
> x.setVisible(true);
> x.start();
> };
>
> public void init()
> {
>         Dimension d = getSize();
>         setLayout(new BorderLayout());
>         canvas = new myappletCanvas(d.width, d.height);
>         add("Center", canvas);
> }
>
>     public void start()
>     {
>         canvas.start();
>     }
>     public void stop()
>     {
>         canvas.stop();
>     }
>     public void destroy()
>     {
>         canvas.stop();
>         canvas.destroy();
>     }
>     private class myappletCanvas extends GLAnimCanvas
>     {
>         public myappletCanvas(int w, int h)
>         {
>             super(w, h);
>             GLContext.gljNativeDebug = false;
>             GLContext.gljClassDebug = false;
>             setAnimateFps(60.0);
>         }
>
>         public void preInit()
>         {
>             doubleBuffer = true;
>             stereoView = false;
>         }
>
>         public void init()
>         {
>             System.out.println("init(): " + this);
>             reshape(getSize().width, getSize().height);
>             glj.gljCheckGL();
>         }
>
>         public void destroy()
>         {
>             System.out.println("destroy(): " + this);
>             cvsDispose();
>         }
>
>         public void reshape(int width, int height)
>         {
>             gl.glViewport(0,0,width,height);
>         }
>
>         public void display()
>         {
>             if (glj.gljMakeCurrent(true) == false) return;
>             glj.gljSwap();
>             glj.gljCheckGL();
>             glj.gljFree();
>             if (!isSuspended()) repaint();  // Animate at full speed.
>         }
>     }
> }
>
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