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jPCT - a 3d engine for Java => Support => Topic started by: raft on June 23, 2010, 10:17:39 pm

Title: lwjgl 2.4.2 fails on linux
Post by: raft on June 23, 2010, 10:17:39 pm

hi,

hello world GL example in latest release (1.21) doesn't launch. it throws the exception below. it runs ok in previous versions including 1.21 alpha. i guess this is related to LWJGL 2.4.2

Quote

Exception in thread "main" java.lang.ExceptionInInitializerError
   at com.threed.jpct.GLHelper.findMode(Unknown Source)
   at com.threed.jpct.GLHelper.findMode(Unknown Source)
   at com.threed.jpct.GLHelper.init(Unknown Source)
   at com.threed.jpct.GLRenderer.init(Unknown Source)
   at com.threed.jpct.FrameBuffer.enableRenderer(Unknown Source)
   at com.threed.jpct.FrameBuffer.enableRenderer(Unknown Source)
   at com.threed.jpct.FrameBuffer.enableRenderer(Unknown Source)
   at HelloWorldOGL.loop(HelloWorldOGL.java:37)
   at HelloWorldOGL.main(HelloWorldOGL.java:15)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
   at org.lwjgl.opengl.XRandR$Screen.<init>(XRandR.java:234)
   at org.lwjgl.opengl.XRandR$Screen.<init>(XRandR.java:196)
   at org.lwjgl.opengl.XRandR.populate(XRandR.java:87)
   at org.lwjgl.opengl.XRandR.access$100(XRandR.java:52)
   at org.lwjgl.opengl.XRandR$1.run(XRandR.java:110)
   at java.security.AccessController.doPrivileged(Native Method)
   at org.lwjgl.opengl.XRandR.getConfiguration(XRandR.java:108)
   at org.lwjgl.opengl.LinuxDisplay.init(LinuxDisplay.java:618)
   at org.lwjgl.opengl.Display.<clinit>(Display.java:135)
   ... 9 more

Title: Re: lwjgl 2.4.2 fails on linux
Post by: EgonOlsen on June 23, 2010, 10:24:40 pm

Looks like as if it fails on this call:

Code: [Select]

Display.getAvailableDisplayModes();

because that's the only lwjgl related thing that GLHelper.findMode() does. Maybe you can write a simple test case that does this call and see what happens then!?

Title: Re: lwjgl 2.4.2 fails on linux
Post by: raft on June 23, 2010, 10:37:02 pm

yes, that call fails with same exception

Code: [Select]

Exception in thread "main" java.lang.ExceptionInInitializerError
at tmp.LWTest.main(LWTest.java:17)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
at org.lwjgl.opengl.XRandR$Screen.<init>(XRandR.java:234)
at org.lwjgl.opengl.XRandR$Screen.<init>(XRandR.java:196)
at org.lwjgl.opengl.XRandR.populate(XRandR.java:87)
at org.lwjgl.opengl.XRandR.access$100(XRandR.java:52)
at org.lwjgl.opengl.XRandR$1.run(XRandR.java:110)
at java.security.AccessController.doPrivileged(Native Method)
at org.lwjgl.opengl.XRandR.getConfiguration(XRandR.java:108)
at org.lwjgl.opengl.LinuxDisplay.init(LinuxDisplay.java:618)
at org.lwjgl.opengl.Display.<clinit>(Display.java:135)
... 1 more


Title: Re: lwjgl 2.4.2 fails on linux
Post by: EgonOlsen on June 23, 2010, 10:47:35 pm

Looks like an issue for the lwjgl forum then... ;)

Title: Re: lwjgl 2.4.2 fails on linux
Post by: raft on June 23, 2010, 10:58:07 pm

posted:
http://lwjgl.org/forum/index.php/topic,3380.0.html