How to detect if OpengGL is supported?

OpenGL Development JOGL Development
#1

Hi,

I tried to load a simple Jogl program (just a Canvas in a JFrame) on a cheap Intel 82845G integrated card. The driver doesn’t support OpenGL. Is there a way to detect when this happens.

It throws me the following exception but I can’t catch it since it’s in the AWT Thread.


Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
        at net.java.games.jogl.impl.windows.WindowsGLContextFactory.getDummyGL(WindowsGLContextFactory.java:168)
        at net.java.games.jogl.impl.windows.WindowsGLContext.choosePixelFormatAndCreateContext(WindowsGLContext.java:288)
        at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.create(WindowsOnscreenGLContext.java:230)
        at net.java.games.jogl.impl.windows.WindowsGLContext.makeCurrent(WindowsGLContext.java:136)
        at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.makeCurrent(WindowsOnscreenGLContext.java:129)
        at net.java.games.jogl.impl.GLContext.invokeGL(GLContext.java:246)
        at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.invokeGL(WindowsOnscreenGLContext.java:76)
        at net.java.games.jogl.GLCanvas$2.run(GLCanvas.java:130)
        at java.awt.event.InvocationEvent.dispatch(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)
#2

Please try upgrading to the JSR-231 beta 1. A lot of this code has been rewritten and should be more correct now.

#3

I think he’s asking how can you detect OGL support via query operations instead of catching an exception which is not clean in my opinion.

#4

The exception above should not be occurring and looks like a bug which we may have worked around in a later build.