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From: Max G. <gi...@li...> - 2000-11-18 23:14:07
|
Sven Goethel wrote: > Well - this looks like a stack overflow behavior ! > I guess it is NOT GL4Java's native libraries, but I am not shure ! This happens in various places but always when calling GL4J, is it still possible to be an overflow problem? If so, I'll investigate it deeply, thx for suggestion. BTW, would it be a big problem to check stack and throw an exception instead of segfaulting whole JVM? > Try to make JVM's startup and average memory heaps bigger ! > If no error will occure, I really would guess, it is about a wrong arrays > size. No difference, I tried. > Mesa 3.X ? 3.3 > XFree86 4.0.X - DRI / XXX ? 4.0.1 which came with RedHat > NVidia ? TNT, but not accelerated (didn't have the time to investigate how to turn it on) Max -- ----------------------------------------------- Max Gilead gi...@li... XMage library http://xmage.sourceforge.net ----------------------------------------------- -- Sex on TV is bad. You might fall off... |
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From: Sven G. <sgo...@ja...> - 2000-11-18 03:05:50
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Friday 17 November 2000 15:47, aNt wrote: > I have made a InstallAnywhere for Mac/Win of GL4Java. works cool as. not > had time to do the other platforms as yet. > > if u wont that installer I can send u it over. > > love to see a MacOSX port of GL4Java. > > aNt > Well, how is InstallAnywhere licensed ? I mean the product, the InstallerInstaller :-) I guess it is not GNU (GPL, LGPL) !? GL4Java now has only one non (L)GPL dependency, it is: JavaCC ! One time, I will remove this one either ! BUT PLEASE - no more non GNU things ! Thanxs a lot ! Anyway, just send those files 2 me, I will offer them as an alternate installation method ! Thanxs a lot. Sven > _______________________________________________ > gl4java-usergroup mailing list > gl4...@li... > http://lists.sourceforge.net/mailman/listinfo/gl4java-usergroup - -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440, +49-170-2115963; fax: +49-521-2399442 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE6FfH8HdOA30NoFAARAj7LAKC0+f3Q7OYbfAnvPz/nMHK+FthwBACfZM8x S5G3YoPFrlWd+DEZPmoYaew= =mnkN -----END PGP SIGNATURE----- |
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From: aNt <an...@to...> - 2000-11-17 16:59:24
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Swing.. arrrr downer. looks to me like the Swing GLAnimJPanel uses a java.awt.image.BufferedImage now I take it that's Java2 stuff. On the Mac there's no joy with that call, being Java1.1 I need to also pass the data to the TGA exporter, can I still do that using the swing GLAnimPanel ? is there a work around for the BufferedImage ? panic !!! aNt |
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From: aNt <an...@to...> - 2000-11-17 14:48:03
|
I have made a InstallAnywhere for Mac/Win of GL4Java. works cool as. not had time to do the other platforms as yet. if u wont that installer I can send u it over. love to see a MacOSX port of GL4Java. aNt |
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From: Sven G. <sgo...@ja...> - 2000-11-17 11:58:09
|
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Tue, 14 Nov 2000, Max Gilead wrote: > Hi! > > I'm experiencing continuous JVM crashes because of GL4Java (GLFuncJauJNI > is listed on top of program trace each time). The problem is that those > crashes are semi-random ie. I change something insignificant (like > variable initial value or even launch another application like currently > Netscape) and problem disappears. I don't have any idea how this > behavior can be reproduced but it's *very* tiresome and it occures > *very* often (several times per hour - note that I have to wait for > 130MB core to be dumped each time - it takes time). > > Again - I don't have to change *anything* in application (but it > sometimes works too), just change system environment a little and it > 'solves' problem. > > If anyone has ANY ideas what should I do, I would be VERY grateful. > Well - this looks like a stack overflow behavior ! I guess it is NOT GL4Java's native libraries, but I am not shure ! GL4Java gives you the following chances to create a stack overflow, or a mysterious memory crash: - allocating a too small array, passing the array to OpenGL, which needs a bigger array ! This semantics are not checked. I have just tried to create this kind of crash, but I was not succesfull :-( Demo "select.java": I gave the "vp"-array just a zero size. "vp" is passed to GL and GLU ! But it works ... may be because the JVM allocates enough memory, so we did not crossed the border to an illegal memory area .. ?! I suppose, that - if somebody has the time - to add semantic arrays checks for another debug-test library ! But this task would be _very_ time consuming, because the many functions we do have. This "user" mistake, or a bug within the GL driver (which one are you using ?), can create those mysterical results ! Try to make JVM's startup and average memory heaps bigger ! If no error will occure, I really would guess, it is about a wrong arrays size. Comments and Ideas about automatically array-size checking for Java<->JNI are welcome. > BTW, remember my posts from about two weeks ago? I believe it was one of > such situations. > I must check my email archive. > I'm using GNU/Linux RedHat 7.0, GL4Java 2.4.0.0 and Sun JDK 1.3. > Which OpenGL driver ? Mesa 3.X ? XFree86 4.0.X - DRI / XXX ? NVidia ? > Bye, > Max > It would be cool, to have a very array consuming Java/OpenGL example, which always tries to run out of any bounds, even the JVM pre-allocated memory bounds. Kind regards, Sven > -- > ----------------------------------------------- > Max Gilead gi...@li... > XMage library http://xmage.sourceforge.net > ----------------------------------------------- > -- Sex on TV is bad. You might fall off... - -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440, +49-170-2115963; fax: +49-521-2399442 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE6FR0DHdOA30NoFAARAgpNAJ9a7AvqGL+9BO9VB5sk+Jy+twggVQCgtEZM 8htlxooRaVG8TUjOGPty/tI= =xD7w -----END PGP SIGNATURE----- |
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From: Sven G. <sgo...@ja...> - 2000-11-16 23:33:51
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thu, 16 Nov 2000, Dev Brown wrote: > DEFINATELY! Sven, please port gl4Java to OSX! > > tschuess, > Dev > Yo yo - hold on a secound .. I never said, that I will NOT port it to OSX ! I am really willing to do so. Status: - Installed MacOS X on my powerbook - beside GNU/Linux & mac os 9 ! ;-) TODO: - Installing the developer CD - Check OpenGL support in OSX & powerbook - does it run - how does the agl interface is being changed from OS9 -> OSX well, at this time, I have to find some more oppurtunities to earn some money. but in the near future, I will do it - may be in december 2000 ! if somebody really needs this port commercially or/and want to found the port, you are wellcome :-) till the port is finished, i advice you to use a: GNU/Linux box (runs very well for i386 and ppc) Mac OS 9 Win32 QUESTION: I have updated my Mac OS 9 installation. Then, the applescript did not get started anymore, if I have opened the gl4java installation directory ! Has somebody a solution ? I am also looking somebody to rewrite the installation script for Mac OS X ! kind regards, sven - -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440, +49-170-2115963; fax: +49-521-2399442 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE6FG52HdOA30NoFAARAiX6AJsGt/q7+TehVXtmLY/tVZ95xV86XACgrfW+ Yz1zCIMqaMNy8qN8UAMs7DU= =Q2L1 -----END PGP SIGNATURE----- |
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From: Dev B. <pat...@ea...> - 2000-11-16 20:46:40
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DEFINATELY! Sven, please port gl4Java to OSX! tschuess, Dev ------Original Message------ From: gl4...@li... To: gl4...@li... Sent: November 16, 2000 8:29:12 PM GMT Subject: gl4java-usergroup digest, Vol 1 #160 - 1 msg Send gl4java-usergroup mailing list submissions to gl4...@li... To subscribe or unsubscribe via the World Wide Web, visit http://lists.sourceforge.net/mailman/listinfo/gl4java-usergroup or, via email, send a message with subject or body 'help' to gl4...@li... You can reach the person managing the list at gl4...@li... When replying, please edit your Subject line so it is more specific than "Re: Contents of gl4java-usergroup digest..." Today's Topics: 1. OS X? (J Anger) --__--__-- Message: 1 Date: Wed, 15 Nov 2000 22:16:33 -0700 From: J Anger <joh...@ar...> To: <gl4...@li...> Subject: [gl4java-usergroup] OS X? What do you think? - I'd like to see gl4java on OS X beta. Anybody else? Thanks Sven, etc.... John Anger --__--__-- _______________________________________________ gl4java-usergroup mailing list gl4...@li... http://lists.sourceforge.net/mailman/listinfo/gl4java-usergroup End of gl4java-usergroup Digest_______________________________________________ gl4java-usergroup mailing list gl4...@li... http://lists.sourceforge.net/mailman/listinfo/gl4java-usergroup |
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From: J A. <joh...@ar...> - 2000-11-16 05:13:12
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What do you think? - I'd like to see gl4java on OS X beta. Anybody else? Thanks Sven, etc.... John Anger |
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From: Max G. <gi...@li...> - 2000-11-14 21:06:28
|
Hi! I'm experiencing continuous JVM crashes because of GL4Java (GLFuncJauJNI is listed on top of program trace each time). The problem is that those crashes are semi-random ie. I change something insignificant (like variable initial value or even launch another application like currently Netscape) and problem disappears. I don't have any idea how this behavior can be reproduced but it's *very* tiresome and it occures *very* often (several times per hour - note that I have to wait for 130MB core to be dumped each time - it takes time). Again - I don't have to change *anything* in application (but it sometimes works too), just change system environment a little and it 'solves' problem. If anyone has ANY ideas what should I do, I would be VERY grateful. BTW, remember my posts from about two weeks ago? I believe it was one of such situations. I'm using GNU/Linux RedHat 7.0, GL4Java 2.4.0.0 and Sun JDK 1.3. Bye, Max -- ----------------------------------------------- Max Gilead gi...@li... XMage library http://xmage.sourceforge.net ----------------------------------------------- -- Sex on TV is bad. You might fall off... |
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From: Sven G. <sgo...@ja...> - 2000-11-13 22:54:22
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Mon, 13 Nov 2000, aNt wrote: > hello everyone. > > well everything is running well cool :) gl4java rocks. > > but 'aarrrrrrr' downer... help!! I'm grabbing the gl area using: > > textGrab4Snapshot = new TGATextureGrabber(gl) ; > textGrab4Snapshot.grabPixels(GL_BACK, 0, 0, cvsGetWidth(), cvsGetHeight()); > textGrab4Snapshot.write2File(fname); > > as in the demo... > > now this works great untill I make the area of GL Canvas bigger then my > monitor screen size. then is seems to just grab the area that is drawn to > screen not the area off the screen :(... > > is there anyway of grabbing stuff that's not all on the screen ? > > I need to do this, like real bad :(. > well, the opengl direct rendering context has usually just the screen size as its maximum ! looks like you want to use OffscreenRendering (it is not that fast) -> look into the gl4java.swing realisation for description. Respect: Offscreen rendering & swing support was founded by "Desys GmbH", http://www.desys.com ! > help > > > aNt > Being peacefull - Sven - -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440, +49-170-2115963; fax: +49-521-2399442 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE6EHEDHdOA30NoFAARArS/AKC+Z+RAzCkf6QKjZ6KmeLqOKBLR8gCdHc0J Jr7cKfU0IQgN1o4/km7yIrA= =koPU -----END PGP SIGNATURE----- |
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From: aNt <an...@to...> - 2000-11-13 22:02:32
|
hello everyone. well everything is running well cool :) gl4java rocks. but 'aarrrrrrr' downer... help!! I'm grabbing the gl area using: textGrab4Snapshot = new TGATextureGrabber(gl) ; textGrab4Snapshot.grabPixels(GL_BACK, 0, 0, cvsGetWidth(), cvsGetHeight()); textGrab4Snapshot.write2File(fname); as in the demo... now this works great untill I make the area of GL Canvas bigger then my monitor screen size. then is seems to just grab the area that is drawn to screen not the area off the screen :(... is there anyway of grabbing stuff that's not all on the screen ? I need to do this, like real bad :(. help aNt -- email: an...@to... |
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From: Nikk A. <nik...@ar...> - 2000-11-08 16:10:43
|
Hi, I saw a post on the website (before I joined the list) about Windows 2000 compatibility. I have GL4Java running very well on Windows 2000, with theSunVM (1.2.2) - also on Win 95 and Win 98 - the libraries were installed manually rather than the web installer. I use JBuilder3.5 to compile and test the apps. If you need more specific info just mail. Hope that helps. I do however have a problem running on the IRIX beta port of the Java1.3 VM. The error message occurs during the GL Initialisation, and reports a String Index Out of Bounds error when detecting the java version. Anyone else have this problem? Nikk |
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From: Thorsten R. <tho...@iv...> - 2000-11-08 11:59:40
|
>[...]
> public static void main(String[] args)
> {
> Frame myFrame = new Frame("Voronoi");
> myFrame.addWindowListener(
> new WindowAdapter(){
> public void windowClosing(WindowEvent e){
> applet.stop();
> applet.destroy();
> System.exit(0);
> }
> });
> myFrame.setSize(640,480);
> applet = new Voronoiapplet();
> applet.setSize(640,480);
> applet.init();
try to insert the following:
myFrame.setLayout (new BorderLayout()); // set layout of frame
myFrame.add (applet, BorderLayout.CENTER); // add applet to frame
> applet.start();
> myFrame.setVisible(true);
> }
>[...]
ciao, Thorsten
|
|
From: Matthias S. <mat...@st...> - 2000-11-07 22:42:25
|
hello
I have an applet up and running but when I tried to run it from an
application , it didn't work :-(
this is the code i added in my applet:
public static void main(String[] args)
{
Frame myFrame = new Frame("Voronoi");
myFrame.addWindowListener(
new WindowAdapter(){
public void windowClosing(WindowEvent e){
applet.stop();
applet.destroy();
System.exit(0);
}
});
myFrame.setSize(640,480);
applet = new Voronoiapplet();
applet.setSize(640,480);
applet.init();
applet.start();
myFrame.setVisible(true);
}
it uses a jar file
i use vj++ so the arguments for jview are:
/p /cp:p "<JAVAPACKAGES>" Voronoiapplet
i believe <javapackages> refers to the classpath var so the jar
shouldn't be a problem since I included it in the classpath
the only thing I see is an empty white frame!
does anybody see the problem?
thanks
mattie
|
|
From: Emil S. <emi...@ho...> - 2000-11-03 08:29:22
|
I have problems to get GL4Java to work on my Windows 2000 machine. I have run the web installer and everything went smooth there. But I still cant get the demos to work:( I get the following javalog: load native libs:null, null, null java.lang.UnsatisfiedLinkError: gl4java/system/GljMSJDirect.createOGLWindowNativeJDirect Possible causes: If you are trying to use J/Direct (@dll.import), check your compiler version (for JVC, requires 4336 or greater.) If you are trying to use RNI, there are new requirements: see documentation. at gl4java/system/GljMSJDirect.createOGLWindowNativeJDirect at gl4java/system/GljMSJDirect.createOGLWindowNative at gl4java/GLContext.run at java/lang/Thread.run I have MS-JVM machine (build 3234) installed, I have opengl.dll and glu.dll I am able to compile using the jdk1.3, I still cant run them either... Is the resent build not compatible with the Windows 2000? Or am I just doing something really stupid? I have gotten evrything to work on a mac, havent tried on w98 but maybe I can get my hands on one later on. Best regards and everything Emil _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. |
|
From: aNt <an...@to...> - 2000-11-02 14:54:06
|
hello all... hope u are all well ? I wonder if anyone can tell me how I change the pixel colors [r,g,b] of a PNG texture once I have loaded it with the PNGTextureLoader. I wont to leave the alpha alone, but mess around with the r, g, b values (make them something else). can anyone tell me how I go about this ? tops aNt |
|
From: Sven G. <sgo...@ja...> - 2000-10-31 17:45:28
|
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Saturday 28 October 2000 01:12, you wrote: > Sven, > > I ran into a problem when using GL4Java on IBM's VisualAge for Jave > application and Borlands JBuilder. GL4Java extends upon the > sun.awt.windows package in the MSWin32, Win32, and X11 handle access > classes. This is causing problems in the Java IDEs (at least for me). > When running the application an error stating that Win32HandleAccess > cannot be found. Have you heard of anyone else having problems like > this? > > A developer around here said it is not a good idea to extend sun's > packages. As a workaround, I moved sun.awt.windows to > gl4java.sun.awt.windows. This seemed to work. I only needed to modify > GLContext and Win32HandleAccess (I didn't worry about > MSWin32HandleAccess). What do you think? > > Question. Even though this fix works in VisualAge, a console terminal > appears with the "problem in use() method" string printed whenever > glj.gljMakeCurrent fails (this occurs when the window containing the > GLAnimCanvas is selected after being hidden). This message does not > appear when the Java application is run normally. The GLAnimCanvas > still works, but this error message is printed out. Any ideas what > could cause gljMakeCurrent to fail? > > Thanks, > Brian Thanks for your advice ! The next upcoming version 2.5.0.0, will have the sun.awt.windows.* packages moved to gl4java.jau.awt.windows ! To access the new location of the packages, a little change is also made in gl4java.GLContext ! Thanxs a lot ! Yours Sven - -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440, +49-170-2115963; fax: +49-521-2399442 ! PEACE ON MOTHER EARTH - and the middle east, etc., of course - NOW ! -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE5/wUjHdOA30NoFAARAqczAJ9EnDZf4X3goND9qhMzzvd5gu2xjwCdHmRr MbSWri9XBFCqGzvl+wQLPzo= =qn0K -----END PGP SIGNATURE----- |
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From: Sven G. <sgo...@ja...> - 2000-10-31 16:59:04
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---------- Forwarded Message ---------- Subject: Re: [gl4java-usergroup] gl4java/security policies/jdk1.3 under Linux Date: Tue, 31 Oct 2000 17:52:06 +0100 From: Sven Goethel <sgo...@ja...> To: Josep Torra Valles <jt...@ca...> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Tuesday 31 October 2000 16:53, you wrote: > > I'm using a Linux box with Mandrake 7.1/kernel 2.2.17/Mesa > > 3.3/xfree 3.3.6/netscape 4.73/jdk 1.3 from sun, this box is > connected to internet across a Wingate proxy box, that's the > reason I believe of why can't install gl4java from the web. > > I tried to install it by hand following the docs INSTALL.txt > Java2.txt and Netscape.txt. > > jar files copied into /jdk/jre/lib, /jdk/jre/lib/ext, > /usr/lib/netscape/java/classes/ > > native libs copied into /jdk/jre/lib/i386 and /usr/lib perfect ! > java glDemosCvs runs right > netscape glDemosCvs.html not using Java2-Pluggin seems to run too > , only an error message "cannot find glXGetProcAddress* in GLX > library libglx.so" ok - you have no function like this, but GL4Java uses the dlopen way .. fine ! (BTW: glXGetProcAddress is implemented within XFree86 4.0 + DRI) ! > the proble that I have is related to appletviwer/Netscape > Java2 pluggin and security policies, the message is > java.lang.ExceptionInIntialize error: > java.security.AccesControlException:acces denied > (java.langRuntimePermision loadLibrary.GL4JavaJauGljJNI12) > > appletviewer -J-Djava.security.policy=gl4java.policy > glLogoCvsApplet.html > > Could someone help me to fix it in my machine? Puhh .. I just tried it by myself: Linux, Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0), Java HotSpot(TM) Client VM (build 1.3.0, mixed mode) and I have the same error .. Well, I just installed on www.jausoft.com/gl4java all demos with the java2 plugin and they do run well with the given java.policy add on ... any help is welcome looks like something is broken ? yours, sven > Thanks in advance. - -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440, +49-170-2115963; fax: +49-521-2399442 ! PEACE ON MOTHER EARTH - and the middle east, etc., of course - NOW ! -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE5/vi3HdOA30NoFAARAvWuAJ9LghG2b1C7DfN4iG4VwY5tSoMK5ACgwrnf cXOkfqagLF1uaqimMS8Jjc0= =HXcP -----END PGP SIGNATURE----- ------------------------------------------------------- -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440, +49-170-2115963; fax: +49-521-2399442 ! PEACE ON MOTHER EARTH - and the middle east, etc., of course - NOW ! |
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From: Josep T. V. <jt...@ca...> - 2000-10-31 15:58:20
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I'm using a Linux box with Mandrake 7.1/kernel 2.2.17/Mesa =0D 3.3/xfree 3.3.6/netscape 4.73/jdk 1.3 from sun, this box is =0D connected to internet across a Wingate proxy box, that's the =0D reason I believe of why can't install gl4java from the web.=0D =0D I tried to install it by hand following the docs INSTALL.txt =0D Java2.txt and Netscape.txt.=0D =0D jar files copied into /jdk/jre/lib, /jdk/jre/lib/ext, =0D /usr/lib/netscape/java/classes/=0D =0D native libs copied into /jdk/jre/lib/i386 and /usr/lib =0D =0D java glDemosCvs runs right=0D netscape glDemosCvs.html not using Java2-Pluggin seems to run too =0D , only an error message "cannot find glXGetProcAddress* in GLX =0D library libglx.so"=0D =0D the proble that I have is related to appletviwer/Netscape =0D Java2 pluggin and security policies, the message is =0D java.lang.ExceptionInIntialize error: =0D java.security.AccesControlException:acces denied =0D (java.langRuntimePermision loadLibrary.GL4JavaJauGljJNI12)=0D =0D appletviewer -J-Djava.security.policy=3Dgl4java.policy =0D glLogoCvsApplet.html=0D =0D Could someone help me to fix it in my machine?=0D =0D Thanks in advance.=0D |
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From: Thorsten R. <tho...@iv...> - 2000-10-30 14:11:22
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Hi *, does anybody know if it's possible to use texture compression with gl4java ? ciao, Thorsten |
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From: Max G. <gi...@li...> - 2000-10-28 12:13:03
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Max Gilead wrote: > Sven Goethel wrote: > > Hmm .. well no application - in my experience - crashes, > > if gljMakeCurrent replaces a current context ! > Okay, I'll send a small code snippet so everyone can test it. Shit, I cannot reproduce the bug right now. I thought it's so staightforward that it's not worth saving the code. Although I was able to crash JVM without problem. If it happens again I'll save this precious code ;-) Sorry then. Thx for attention, Max -- Max Gilead (gi...@li...) http://3d.linart.krakow.pl/OfficinaArtificialis --- -- XMage: Image / 3D / OpenGL Java library - http://xmage.sourceforge.net ----------------------------------------------------------------------------- -- Developers must not be afraid to get a little mud on their shoes as -- -- they explore new territory for the first time. Architectural insight is -- -- not the product of master plans, but of hard won experience. -- -- - 'Big Ball of Mud' B. Foote and J. Yoder -- |
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From: Max G. <gi...@li...> - 2000-10-26 21:49:51
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Sven Goethel wrote: > Hmm .. well no application - in my experience - crashes, > if gljMakeCurrent replaces a current context ! Okay, I'll send a small code snippet so everyone can test it. Max -- Max Gilead (gi...@li...) http://3d.linart.krakow.pl/OfficinaArtificialis ------ XMage: Image / 3D / OpenGL Java library - http://xmage.sourceforge.net ----------------------------------------------------------------------------- -- Developers must not be afraid to get a little mud on their shoes as -- -- they explore new territory for the first time. Architectural insight is -- -- not the product of master plans, but of hard won experience. -- -- - 'Big Ball of Mud' B. Foote and J. Yoder -- |
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From: Sven G. <sgo...@ja...> - 2000-10-26 20:18:36
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Request: Anybody interesting, in distributing the source in a cvs archive ? Yours, Sven - -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440, +49-170-2115963; fax: +49-521-2399442 ! PEACE ON MOTHER EARTH - and the middle east, etc., of course - NOW ! -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.3 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE5+JGBHdOA30NoFAARAiwAAJ4+ONNKo9H7CtS3BNrfXdDwFr9yxgCgl92T 5tGRE+B/KHhYQ9HLAm2kFkw= =H/8e -----END PGP SIGNATURE----- |
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From: Sven G. <sgo...@ja...> - 2000-10-26 16:24:16
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sunday 22 October 2000 12:16, you wrote: > Hello! > > It seems like this message slipped by unnoticed. Since it is important > issue I'm sending it again. > > > > -------- Original Message -------- > From: Max Gilead <gi...@li...> > Subject: Activating and freeing GL context > To: GL4Java mailing list <gl4...@li...> > > Hello! > > Is there any way of checking if a GL context is made already current > (gljMakeCurrent())? Calling gljMakeCurrent() twice crashes JVM, haven't > checkeg gljFree() twice... but is there some clean way of checking it? > Hmm .. well no application - in my experience - crashes, if gljMakeCurrent replaces a current context ! Well, we can add a gljGetCurrentContext native function to GLContext. Also we may can add a gljMakeCurrentNoReplace thing to GLContext ! How do you vote ? > BTW, is it possible to change GL4Java's behavior from crashing JVM to > just throwing an exception in case of duplicate context activation? This > is true for GL4J 2.4.0.0 and Sun's JVMs 1.2.2 and 1.3rc1 and IBM's 1.3 / > Linux. > Never happens to me. Please send a little code, where the error occures (a complete class, please). > Max > Sven > > -- > Max Gilead (gi...@li...) > http://3d.linart.krakow.pl/OfficinaArtificialis > --- > -- XMage: Image / 3D / OpenGL Java library - > http://xmage.sourceforge.net > --------------------------------------------------------------------------- >-- -- This email was published on recyclable bytes and no AI was > harmed -- > -- during its > creation. -- - -- mailto:sgo...@ja... www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/ voice : +49-521-2399440, +49-170-2115963; fax: +49-521-2399442 ! PEACE ON MOTHER EARTH - and the middle east, etc., of course - NOW ! -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.3 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE5+FpZHdOA30NoFAARAm5cAKCbdZi6ND60ocC0+49cQcuZcGntcACfUQU7 7OLi50xfhUYmPLAMMG1rWSU= =/8uJ -----END PGP SIGNATURE----- |
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From: Jean-Yves B. <jea...@wa...> - 2000-10-26 08:02:38
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Hello Max.
1.
==
I tried to call several times gljmakeCurrent(true)
in the display method and I didn't get any crash
on Windows.
I use sun jvm from jdk 1.2.2.
2.
==
When I need to make gl call outside of display() method,
I use the following piece of code:
/////
synchronized(MyConstants.synchronizator)
// MyConstants.synchonizator is a static String used to
// synchronize all gl call.
{
if (canvas.gljmakeCurrent(true))
{
GLFunc gl = canvas.getGl();
GLUFunc glu = canvas.getGlu();
// Here all my gl calls...
// ....
canvas.glFree();
}
///////
Maybe it is too heavy code. I don't know if
gljmakeCurrent() and glFree() takes lot of time or not to execute.
3.
==
Anyway, I agree with you:
Checking if a GL context is made already current
would be nice.
Jean-Yves
Max Gilead a *crit :
> Hello!
>
> It seems like this message slipped by unnoticed. Since it is important
> issue I'm sending it again.
>
> -------- Original Message --------
> From: Max Gilead <gi...@li...>
> Subject: Activating and freeing GL context
> To: GL4Java mailing list <gl4...@li...>
>
> Hello!
>
> Is there any way of checking if a GL context is made already current
> (gljMakeCurrent())? Calling gljMakeCurrent() twice crashes JVM, haven't
> checkeg gljFree() twice... but is there some clean way of checking it?
>
> BTW, is it possible to change GL4Java's behavior from crashing JVM to
> just throwing an exception in case of duplicate context activation? This
> is true for GL4J 2.4.0.0 and Sun's JVMs 1.2.2 and 1.3rc1 and IBM's 1.3 /
> Linux.
>
> Max
>
> --
> Max Gilead (gi...@li...)
> http://3d.linart.krakow.pl/OfficinaArtificialis
> ---
> -- XMage: Image / 3D / OpenGL Java library -
> http://xmage.sourceforge.net
> -----------------------------------------------------------------------------
> -- This email was published on recyclable bytes and no AI was
> harmed --
> -- during its
> creation. --
> _______________________________________________
> gl4java-usergroup mailing list
> gl4...@li...
> http://lists.sourceforge.net/mailman/listinfo/gl4java-usergroup
--
--------------------------------------
Jean-Yves BRUD
POLYQUARK - Ingenierie & Creation 3D
Palahou - 31330 LARRA France
Tel: 05.62.79.03.33 Fax: 05.62.79.03.38
Mail: jea...@wa...
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