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1  Java Game APIs & Engines / JOGL Development / Relationship btw Sun's OpenGL in 1.5 and JOGL on: 2004-10-30 21:41:18
I just noticed in sun's most recent java release that it optionally supports using opengl for Graphics2D drawings.  Is the any relationships btw jogl and what sun's done?  Could there be a merging in the future?
2  Java Game APIs & Engines / JOGL Development / Why does this program crash jogl? on: 2003-09-18 23:40:20
Try running this simple program.  The code opens a window and draws a cube.  Double clicking in the window is supposed to open up a 2nd frame showing an identical cube.  Instead, it crashes the VM  with an exception and EXCEPTION_ACCESS_VIOLATION from the graphic driver.

Could someone tell me why this doesn't work?

import java.awt.*;
import java.awt.event.*;

import net.java.games.jogl.*;
import net.java.games.jogl.util.GLUT;

public class Simple {
     public static void main(String[] args) {new Simple();}
     
     public Simple() {      
           Frame frame = new Frame();      
           GLCanvas canvas = GLDrawableFactory.getFactory().createGLCanvas(new GLCapabilities());
           canvas.addGLEventListener(new CubeRenderer());
           frame.add(canvas);
           frame.setSize(300, 300);
           frame.show();
     }
     
static class CubeRenderer implements GLEventListener, MouseListener{
     public void init(GLDrawable drawable) {
       GL gl = drawable.getGL();
       gl.glClearColor(0,0,0,0);
       drawable.addMouseListener(this);
     }
     
     public void reshape(GLDrawable drawable, int x, int y, int width, int height) {
           GL gl = drawable.getGL();
           gl.glViewport(x, y, width, height);
           gl.glMatrixMode(GL.GL_PROJECTION);
           gl.glLoadIdentity();
           gl.glOrtho(-1,1,-1,1,-1,1);
           gl.glMatrixMode(GL.GL_MODELVIEW);
     }

     public void display(GLDrawable drawable) {      
           GL gl = drawable.getGL();
           GLUT glut = new GLUT();
           gl.glClear(GL.GL_COLOR_BUFFER_BIT);
           gl.glColor3d(1, .25, .75);
           gl.glLoadIdentity();
           glut.glutSolidCube(gl, 1);
     }
     
     public void displayChanged(GLDrawable drawable, boolean modeChanged, boolean deviceChanged) {}
     
     public void mouseEntered(MouseEvent e) {}
     public void mouseExited(MouseEvent e) {}
     public void mousePressed(MouseEvent e) { }  
     public void mouseReleased(MouseEvent e) {}
     // Double Click to launch new window
     public void mouseClicked(MouseEvent e) {System.err.println("Double Clicking ..."); new Simple();}
 }
}

*****************
ouble Clicking ...



****************
Another exception has been detected while we were handling last error.
Dumping information about last error:
ERROR REPORT FILE = hs_err_pid2280.log
PC                = 0x69350594
SIGNAL            = -1073741819
FUNCTION NAME     = DrvSetContext
OFFSET            = 0xF0874
LIBRARY NAME      = C:\WINDOWS\System32\atioglxx.dll
Please check ERROR REPORT FILE for further information, if there is any.
Good bye.
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred at PC=0x69350594
Function=DrvSetContext+0xF0874
Library=C:\WINDOWS\System32\atioglxx.dll

Current Java thread:
     at net.java.games.jogl.impl.windows.WGL.wglCreateContext(Native Method)
     at net.java.games.jogl.impl.windows.WindowsGLContext.choosePixelFormatAndCreateContext(WindowsGLContext.java:296)
     at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.create(WindowsOnscreenGLContext.java:204)
     at net.java.games.jogl.impl.windows.WindowsGLContext.makeCurrent(WindowsGLContext.java:117)
     - locked <0x100585f8> (a net.java.games.jogl.impl.windows.WindowsOnscreenGLContext)
     at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.makeCurrent(WindowsOnscreenGLContext.java:110)
     - locked <0x100585f8> (a net.java.games.jogl.impl.windows.WindowsOnscreenGLContext)
     at net.java.games.jogl.impl.GLContext.invokeGL(GLContext.java:162)
     - locked <0x100585f8> (a net.java.games.jogl.impl.windows.WindowsOnscreenGLContext)
     at net.java.games.jogl.GLCanvas.reshape(GLCanvas.java:105)
     at java.awt.Component.setBounds(Unknown Source)
     at java.awt.BorderLayout.layoutContainer(Unknown Source)
     - locked <0x1050dee8> (a java.awt.Component$AWTTreeLock)
     at java.awt.Container.layout(Unknown Source)
     at java.awt.Container.doLayout(Unknown Source)
     at java.awt.Container.validateTree(Unknown Source)
     at java.awt.Container.validate(Unknown Source)
     - locked <0x1050dee8> (a java.awt.Component$AWTTreeLock)
     at java.awt.Window.show(Unknown Source)
     at JOGLstructuredArguments.Simple.<init>(Simple.java:18)
     at JOGLstructuredArguments.Simple$CubeRenderer.mouseClicked(Simple.java:53)
     at java.awt.Component.processMouseEvent(Unknown Source)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.run(Unknown Source)

Dynamic libraries:
0x00400000 - 0x00407000       C:\Program Files\Java\j2re1.4.2\bin\javaw.exe
0x77F50000 - 0x77FF7000       C:\WINDOWS\System32\ntdll.dll
0x77E60000 - 0x77F46000       C:\WINDOWS\system32\kernel32.dll
0x77DD0000 - 0x77E5D000       C:\WINDOWS\system32\ADVAPI32.dll
0x78000000 - 0x78086000       C:\WINDOWS\system32\RPCRT4.dll
0x77D40000 - 0x77DC6000       C:\WINDOWS\system32\USER32.dll
0x77C70000 - 0x77CB0000       C:\WINDOWS\system32\GDI32.dll
0x77C10000 - 0x77C63000       C:\WINDOWS\system32\MSVCRT.dll
0x629C0000 - 0x629C8000       C:\WINDOWS\System32\LPK.DLL
0x72FA0000 - 0x72FFA000       C:\WINDOWS\System32\USP10.dll
0x08000000 - 0x08136000       C:\Program Files\Java\j2re1.4.2\bin\client\jvm.dll
0x76B40000 - 0x76B6C000       C:\WINDOWS\System32\WINMM.dll
0x10000000 - 0x10007000       C:\Program Files\Java\j2re1.4.2\bin\hpi.dll
0x00830000 - 0x0083E000       C:\Program Files\Java\j2re1.4.2\bin\verify.dll
0x00840000 - 0x00858000       C:\Program Files\Java\j2re1.4.2\bin\java.dll
0x00860000 - 0x0086D000       C:\Program Files\Java\j2re1.4.2\bin\zip.dll
0x02C50000 - 0x02D5A000       C:\Program Files\Java\j2re1.4.2\bin\awt.dll
0x73000000 - 0x73023000       C:\WINDOWS\System32\WINSPOOL.DRV
0x76390000 - 0x763AC000       C:\WINDOWS\System32\IMM32.dll
0x771B0000 - 0x772D1000       C:\WINDOWS\system32\ole32.dll
0x5AD70000 - 0x5ADA4000       C:\WINDOWS\System32\uxtheme.dll
0x02DD0000 - 0x02E20000       C:\Program Files\Java\j2re1.4.2\bin\fontmanager.dll
0x51000000 - 0x51047000       C:\WINDOWS\System32\ddraw.dll
0x73BC0000 - 0x73BC6000       C:\WINDOWS\System32\DCIMAN32.dll
0x5C000000 - 0x5C0C8000       C:\WINDOWS\System32\D3DIM700.DLL
0x74720000 - 0x74764000       C:\WINDOWS\System32\MSCTF.dll
0x07100000 - 0x07105000       C:\Program Files\Java\j2re1.4.2\bin\jawt.dll
0x07110000 - 0x07186000       C:\Program Files\Java\j2re1.4.2\bin\jogl.dll
0x5ED00000 - 0x5EDC6000       C:\WINDOWS\System32\OPENGL32.dll
0x68B20000 - 0x68B3E000       C:\WINDOWS\System32\GLU32.dll
0x69000000 - 0x694AC000       C:\WINDOWS\System32\atioglxx.dll
0x67590000 - 0x67597000       C:\Program Files\Groove Networks\Groove\Bin\GrooveHooks.DLL
0x76C90000 - 0x76CB2000       C:\WINDOWS\system32\imagehlp.dll
0x6D510000 - 0x6D58D000       C:\WINDOWS\system32\DBGHELP.dll
0x77C00000 - 0x77C07000       C:\WINDOWS\system32\VERSION.dll
0x76BF0000 - 0x76BFB000       C:\WINDOWS\System32\PSAPI.DLL

Heap at VM Abort:
Heap
def new generation   total 576K, used 307K [0x10010000, 0x100b0000, 0x104f0000)
 eden space 512K,  57% used [0x10010000, 0x10059cb8, 0x10090000)
 from space 64K,  19% used [0x100a0000, 0x100a3310, 0x100b0000)
 to   space 64K,   0% used [0x10090000, 0x10090000, 0x100a0000)
tenured generation   total 1408K, used 210K [0x104f0000, 0x10650000, 0x14010000)
  the space 1408K,  14% used [0x104f0000, 0x10524998, 0x10524a00, 0x10650000)
compacting perm gen  total 4096K, used 3991K [0x14010000, 0x14410000, 0x18010000)
  the space 4096K,  97% used [0x14010000, 0x143f5e40, 0x143f6000, 0x14410000)

Local Time = Thu Sep 18 20:36:32 2003
Elapsed Time = 2
#
# The exception above was detected in native code outside the VM
#
# Java VM: Java HotSpot(TM) Client VM (1.4.2-b28 mixed mode)
#
# An error report file has been saved as hs_err_pid2280.log.
# Please refer to the file for further information.
#
3  Java Game APIs & Engines / JOGL Development / An unexpected exception has been detected in nativ on: 2003-09-18 15:49:56
The following pretty simple program blows up with an exception in the VM.  All the code does is draw a cube and if you click in the window it opens another window with another cube.

Any idea how to get around this problem?

import java.awt.*;
import java.awt.event.*;

import net.java.games.jogl.*;
import net.java.games.jogl.util.GLUT;

public class Cube {
     public static void main(String[] args) {
           Cube c = new Cube(0, 0);
     }
     
     public Cube(int x, int y) {      
           Frame frame = new Frame("Cube Demo");      
           GLCanvas canvas = GLDrawableFactory.getFactory().createGLCanvas(new GLCapabilities());
           canvas.addGLEventListener(new CubeRenderer());
           frame.add(canvas);
           frame.setSize(300, 300);
           frame.setLocation(new Point(x,y));

           frame.addWindowListener(new WindowAdapter() {
                 public void windowClosing(WindowEvent e) {
                   System.exit(0);
                 }
             });
           frame.show();
     }
     
static class CubeRenderer implements GLEventListener, MouseListener{
     int x=0, y=0;
     public void init(GLDrawable drawable) {
       GL gl = drawable.getGL();
       gl.glClearColor(0,0,0,0);
       
       drawable.addMouseListener(this);
     }
     
     public void reshape(GLDrawable drawable, int x, int y, int width, int height) {
           GLU glu = drawable.getGLU();
           GL gl = drawable.getGL();
           gl.glViewport(x, y, width, height);
           gl.glMatrixMode(GL.GL_PROJECTION);
           gl.glLoadIdentity();
           
           if(width>height)
                 gl.glOrtho(-(double)width/height, (double)width/height, -1, 1, -1, 1);
           else
                 gl.glOrtho(-1, 1, -(double)height/width, (double)height/width, -1, 1);

           gl.glMatrixMode(GL.GL_MODELVIEW);
     }

     public void display(GLDrawable drawable) {      
           GL gl = drawable.getGL();
           GLUT glut = new GLUT();
           gl.glClear(GL.GL_COLOR_BUFFER_BIT);
           gl.glColor3d(1, .25, .75);

           gl.glPushMatrix();
                 glut.glutSolidCube(gl, 1);
           gl.glPopMatrix();
     }
     
     public void displayChanged(GLDrawable drawable, boolean modeChanged, boolean deviceChanged) {}
     
     public void mouseEntered(MouseEvent e) {}
     public void mouseExited(MouseEvent e) {}
     public void mousePressed(MouseEvent e) { }  
     public void mouseReleased(MouseEvent e) {}
     public void mouseClicked(MouseEvent e) {new Cube(x+=100, y+=100);}
 }
}


An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred at PC=0x69350594
Function=DrvSetContext+0xF0874
Library=C:\WINDOWS\System32\atioglxx.dll

Current Java thread:
     at net.java.games.jogl.impl.windows.WGL.wglCreateContext(Native Method)
     at net.java.games.jogl.impl.windows.WindowsGLContext.choosePixelFormatAndCreateContext(WindowsGLContext.java:296)
     at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.create(WindowsOnscreenGLContext.java:204)
     at net.java.games.jogl.impl.windows.WindowsGLContext.makeCurrent(WindowsGLContext.java:117)
     - locked <0x10058138> (a net.java.games.jogl.impl.windows.WindowsOnscreenGLContext)
     at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.makeCurrent(WindowsOnscreenGLContext.java:110)
     - locked <0x10058138> (a net.java.games.jogl.impl.windows.WindowsOnscreenGLContext)
     at net.java.games.jogl.impl.GLContext.invokeGL(GLContext.java:162)
     - locked <0x10058138> (a net.java.games.jogl.impl.windows.WindowsOnscreenGLContext)
     at net.java.games.jogl.GLCanvas.reshape(GLCanvas.java:105)
     at java.awt.Component.setBounds(Unknown Source)
     at java.awt.BorderLayout.layoutContainer(Unknown Source)
     - locked <0x1050de98> (a java.awt.Component$AWTTreeLock)
     at java.awt.Container.layout(Unknown Source)
     at java.awt.Container.doLayout(Unknown Source)
     at java.awt.Container.validateTree(Unknown Source)
     at java.awt.Container.validate(Unknown Source)
     - locked <0x1050de98> (a java.awt.Component$AWTTreeLock)
     at java.awt.Window.show(Unknown Source)
     at JOGLstructuredArguments.Cube.<init>(Cube.java:28)
     at JOGLstructuredArguments.Cube$CubeRenderer.mouseClicked(Cube.java:73)
     at java.awt.Component.processMouseEvent(Unknown Source)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.run(Unknown Source)

Dynamic libraries:
0x00400000 - 0x00407000       C:\Program Files\Java\j2re1.4.2\bin\javaw.exe
0x77F50000 - 0x77FF7000       C:\WINDOWS\System32\ntdll.dll
0x77E60000 - 0x77F46000       C:\WINDOWS\system32\kernel32.dll
0x77DD0000 - 0x77E5D000       C:\WINDOWS\system32\ADVAPI32.dll
0x78000000 - 0x78086000       C:\WINDOWS\system32\RPCRT4.dll
0x77D40000 - 0x77DC6000       C:\WINDOWS\system32\USER32.dll
0x77C70000 - 0x77CB0000       C:\WINDOWS\system32\GDI32.dll
0x77C10000 - 0x77C63000       C:\WINDOWS\system32\MSVCRT.dll
0x629C0000 - 0x629C8000       C:\WINDOWS\System32\LPK.DLL
4  Java Game APIs & Engines / JOGL Development / Surface already unlocked on: 2003-09-17 23:05:00
What might cause this error?  It's coming from deep within the bowels of JOGL after my picking code.

Any ideas would be much appreciated.
5  Java Game APIs & Engines / JOGL Development / Surface already unlocked on: 2003-09-10 18:11:39
In my mouse handling code I call drawable.display() to update my image.  I'm getting a weird error about surface locking.  Any ideas on what's going wrong?


net.java.games.jogl.GLException: Surface already unlocked
     at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.unlockSurface(WindowsOnscreenGLContext.java:192)
     at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.free(WindowsOnscreenGLContext.java:134)
     at net.java.games.jogl.impl.GLContext.invokeGL(GLContext.java:203)
     at net.java.games.jogl.GLCanvas.displayImpl(GLCanvas.java:182)
     at net.java.games.jogl.GLCanvas.display(GLCanvas.java:82)
     at JOGLstructuredArguments.ArgTreeViewRenderer.mouseMoved(ArgTreeViewRenderer.java:524)
6  Java Game APIs & Engines / JOGL Development / repainting speed on: 2003-09-09 18:25:53
The jogl user's guide suggests using GLDrawable.display() to cause a repaint.  I find that calling the repaint method on my GLCanvas, e.g. glCanvas.repaint(), actually runs must faster.

Why is this?
7  Java Game APIs & Engines / JOGL Development / Re: syncing animations using multiple jogl windows on: 2003-09-04 18:33:43
Could someone provide a little more detail?  I would like to animate multiple jogl GLCanvas windows that are to remain in sync.  My code advances to the next frame and calls GLCanvas.repaint() for each window.  

Is there a way to pause until after the repaints complete?
8  Java Game APIs & Engines / JOGL Development / syncing animations using multiple jogl windows on: 2003-09-03 16:02:16
My application uses mutiple GLCanvas's that I would like to animate.  Is there an easy way to syncronize the animations so that every GLCanvas renders itself before my frame counter advances?

many thanks
9  Java Game APIs & Engines / JOGL Development / Re: picking on: 2003-07-24 16:33:04
I also couldn't get picking to work.  Has anybody gotten picking to work?  
10  Java Game APIs & Engines / JOGL Development / Re: jawt and jogl install on: 2003-07-22 21:45:50
Thanks for you  help  Smiley.

The problem apparently was caused by me putting the dll's in the windows/system32 directory instead of jre/bin.  It work fine now!
11  Java Game APIs & Engines / JOGL Development / Re: jawt and jogl install on: 2003-07-22 20:00:11
No, I'm still at the install step.  Evidently jogl.dll uses jawt.dll as a dependent library.  When I run the tiny program, it fails on loadLibrary("jogl") with error message that it cannot finddependent library "jawt".

I can't figure out why it doesn't find "jawt"  It's a clean install of java.
12  Java Game APIs & Engines / JOGL Development / jawt and jogl install on: 2003-07-22 19:29:51
I'm trying to install jogl on a xp machine.  I put the two .dll files in windows/system32 and my tiny program comples correctly.  When I run it I get an error: jawt.dll not found as it fails on the loadLibrary line.

Any suggestions?  It's a clean install of the current java release.

import net.java.games.jogl.*;
public class Simple {
     public static void main( String[] args )
     {
           System.out.println( System.getProperty("java.library.path") );
           System.loadLibrary("jogl");
           System.err.println("***** jogl loaded ******");
     }
}
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