sigh

[bedelf]

I'm just bitching cause yesterday I wanted to look at someones (i wont name names) code on sourceforge and i just wanted to get on and grab it as fast as possible.

If I was going to use it more then once then I would peek around. I should just use it anyways, just to learn some amount of source control, interesting thought. Mabey when I can get a Jar file to work properly I'll look into it.

*cough*cas*cough*spgl*cough*

[jbanes]

Sourceforge, eh? Yeah, they're loads of fun when you're working on a project. For quick and easy checkout tho, it really isn't too bad. Let me show you some voodoo:

1. Go to http://www.cygwin.com, download cygwin and install.

2. Run cygwin

3. If you don't have a c:\temp folder, create it with the following command at the "bash$" prompt:

bash$ mkdir /cygdrive/c/temp

4. Create c:\temp\spgl and change to that directory::

bash$ mkdir /cygdrive/c/temp/spgl
bash$ cd /cygdrive/c/temp/spgl

5. Now for the fun part. Perform the following commands. These are the ones from the sf pages, more or less verbatim:

bash$ cvs -d:pserver:anonymous@cvs.sourceforge.net:/cvsroot/spgl login
password: (press enter without entering anything)
bash$ cvs -z3 -d:pserver:anonymous@cvs.sourceforge.net:/cvsroot/spgl co .


You'll note the "." after the co (short for checkout). This means "get me everything". Literally it means "the current directory" as in "cd .". So replacing "." with "spgl-tools" would get you only the spgl tools.

BTW, if you find yourself working with SF a lot, I highly recommend getting TortoiseCVS.

[bedelf]

Oh, I should have implied I got it working.

It's just I wanted it 5 minutes ago and I had to read text files and webpages to figure out how to install (my install.txt seemed to be MIA on the version I dwnloaded) and get the code. SF acually had a nice explaination of the login portion you just mentioned.

To d/l, install, and grab the code, it took me about 20 minutes. But I was highly annoyed at the time.

Games published by our own members! Check 'em out!

[bedelf]

Ok I don't get it.

This is what I'm doing now. I have a batch file that looks like this:

jar -cvmf MANIFEST.MF Test2D.jar Test2D.class nehe.png
del c:\Test2D\Test2D.jar
move Test2D.jar c:\Test2D\

and a manifest file that looks like this:

Main-Class: Test2D
Class-Path: lwjgl.jar


and my program can't find the nehe.png when I tried to new File( "nehe.png" ); So now it's finding the jar, yay, but why can't it find an image in the current directory?

[bedelf]

For fun I checked the eclipse page and there was a new version. Telling eclipse to use a custom manifest from the workspace and giving it

Manifest-Version: 1.0
Main-Class: Test2D
Class-Path: lwjgl.jar
(newline)
(newline)

seems to work like doing it by the commandline. Now, I dunno if this would have worked in the old version or not, it might do something silly (which now it acually looks like thats what it was) like require that first line with the version etc otherwise it generates one with JUST the version.

It still doesn't find my .png though.

[Backmask]

This is how I load my images in an jar file

1   2   3   4   5   6   7   8   9

URL url = YOURCLASSNAME.class.getResource("nehe.png");          Image tempImage = null;          if (url == null)                   // Load image from file.                  tempImage = new ImageIcon(filename).getImage();             else                   // Load image from URL                  tempImage = new ImageIcon(url).getImage();

Change YOURCLASSNAME to the name of the class you are using this code in.

[bedelf]

I wasn't aware that using a URL would matter.

URL url = Test2D.class.getResource( path );
Image image = ImageIO.read( url );

These 2 lines appear to work just fine, thanks.


Now I need to find a way to kill this thread, it's embarassing.

[Backmask]

LOL... well it starting to get quite large...  

[elias]

Psiegel: what's wrong with -Djava.librarypath=<stuff> on linux?

- elias

[psiegel]

Hmm, I had to go back and reread my original post on this very issue:

http://www.java-gaming.org/cgi-bin/JGOForums/YaBB.cgi?board=LWJGL;action=display;num=1051537039;start=0

It looks like the only problem with that was that I was using 0.5.  I'll have to go back and re-test with 0.6.  Unfortunately right now other work is keeping me stuck in Windows land.

By the by, call me Paul.

-Paul

Games published by our own members! Check 'em out!

[psiegel]

Got back into Linux this morning and ran some tests using -Djava.library.path instead of setting the LD_LIBRARY_PATH environment variable.  It appears to work exactly as you've said.  Nice work.

[elias]

That's just it - I was suspicious of it not working exactly because it _shouldn't_ be my job. The library path is where java looks for native libs (including the lwjgl library), and lwjgl has nothing to do with the way the path is searched nor how the lib is loaded. Another thing would be the loading of the openal and gl library, which Matzon had to tweak to make it work with java.library.path.

But I'm glad it works.

- elias

[kalleh]

I've seen some discussion on how to get LWJGL running under Linux.  On my box running MDK 9.1 i just throw in all the so:s in the same dir as the app and then do a:

LD_LIBRARY_PATH = .
export LD_LIBRARY_PATH

java -cp lwjgl.jar MyCoolApp

Thats it!

You can set LD_LIBRARY_PATH to any path that points to the dynamic libs, not just '.' If your system uses LD_LIBRARY_PATH a more gentle command might also be:

LD_LIBRARY_PATH = $LD_LIBRARY_PATH:/path/to/libs
export LD_LIBRARY_PATH

I usually just set up a shellscript with the above contents that  run the above and then start the app.

Good Luck all Free people with Free OS:s

Kalle

That's just it - I was suspicious of it not working exactly because it _shouldn't_ be my job. The library path is where java looks for native libs (including the lwjgl library), and lwjgl has nothing to do with the way the path is searched nor how the lib is loaded. Another thing would be the loading of the openal and gl library, which Matzon had to tweak to make it work with java.library.path.

But I'm glad it works.

- elias

[bedelf]

Oh my GOD. So in my new project I just tried to export to a jar and it didn't work. Sigh. <----

So this is the low-down:

I'm typing this:
jar -cvmf MANIFEST.MF Blah.jar Blah.class

The MANIFEST looks like this:
Manifest-Version: 1.0
Main-Class: Blah
Class-Path: lwjgl.jar



and when I unjar it, the directory structure looks like this:
Blah.class
META-INF/MANIFEST.MF

the contents of the manifest are changed to this:
Manifest-Version: 1.0
Class-Path: lwjgl.jar
Created-By: 1.4.1_02 (Sun Microsystems Inc.)
Main-Class: Blah



Any ideas? I thought I had this problem snuffed but I guess not.

edit: for fun mabey i should say what the error message is? just says main class not found