LWJGL & Linux

OpenGL Development
#1

Hi :slight_smile:

I’m currently trying to get my game working on Linux (yahoo! 1st positive results are in :D) and I have a couple of questions:

  1. Display.getAvailableDisplayModes() seems to return only the modes which are defined in some config file (sorry to be vague, apart from the usual grepping and stuff I don’t know anything about linux).
    Is this a linux limitation or an lwjgl characteristic?

  2. I’m still unclear about the 2 linux implementations of lwjgl. There’s a red hat one and a suse one. What about other linux implementations? Will that simply not work or do they need either of the 2 native libs?

  3. Is there a way to tell the different linux flavours apart in a JWS jnlp file? The element has an ‘os’ and an ‘arch’ attribute, and os=“Linux” seems to work for RH. I suppose ‘arch’ is something like ‘x86’ on PC’s?

Greetings,
Erik

#2

I’ll take a crack at this:

[quote]Display.getAvailableDisplayModes() seems to return only the modes which are defined in some config file (sorry to be vague, apart from the usual grepping and stuff I don’t know anything about linux).
Is this a linux limitation or an lwjgl characteristic?
[/quote]
This is a characteristic of XFree86. It’s a rather primitive X Server that’s grown up into a very complex piece of code. For now, autodetection trys to list all supported modes during configuration. Hopefully the X Server will just plain get smarter in future revisions. (I’m not holding my breath.)

[quote]I’m still unclear about the 2 linux implementations of lwjgl. There’s a red hat one and a suse one. What about other linux implementations? Will that simply not work or do they need either of the 2 native libs?
[/quote]
Actually it has nothing to do with RedHat vs. Suse and everything to do with the GLib version. I don’t remember who uses what, but cutting edge Linuxes (Mandrake 9.1, RedHat 8&9, etc.) should use the RedHat download while more stable ones (Suse, Debian, etc.) should use the Suse download. The situation here is kind of like VBRun4 vs. VBRun5. Machines can always upgrade to the latest version of GLib and use the RedHat download.

[quote]Is there a way to tell the different linux flavours apart in a JWS jnlp file? The element has an ‘os’ and an ‘arch’ attribute, and os=“Linux” seems to work for RH. I suppose ‘arch’ is something like ‘x86’ on PC’s?
[/quote]
I’ll punt on this one. Different systems have different files/utilities that can be used to determine the exact OS. As for what they are, I’m afraid I don’t remember…

#3

Thanks, jbanes :slight_smile:

These things really ought to be documented when lwjgl 1.0 hits the streets (but hopefully sooner, hint, hint ;))

#4

Ok, I’ll let the cat peep out of the bag, but this is what’s happening: the LWJGL is officially going to move back home and come and live with us at puppygames.net. It’s undecided whether we’ll move the CVS off of sourceforge and put it on our own server, maybe not, because then it’s their bandwidth :slight_smile:

After the release of AF I’m going to be dedicating three whole months to finishing LWJGL and getting it to 1.0, which means fully documenting it inside and out for users and porters alike. I will also be running a series of tutorials.

It was all part of the master plan, see.

Cas :slight_smile: