206 2006-02-22 06:10:16 +0100 glTexImage2D fails on external context 2010-03-24 07:48:30 +0100 0 0 3 JogAmp Jogl core 1 All linux VERIFIED FIXED P3 normal --- 1 sgothel sgothel DEFECT --- oldest_to_newest 222 0 sgothel 2010-03-24 07:48:30 +0100 ---- Reported by gmueckl 2006-02-22 18:10:16 ---- When using JOGL with an external context (the context has an on screen drawable provided by SWT) glTexImage2D fails. The relevant part of the stack backtrace is included. javax.media.opengl.GLException: Context not current at com.sun.opengl.impl.x11.X11GLContext.getPlatformExtensionsString(X11GLContext.java:212) at com.sun.opengl.impl.FunctionAvailabilityCache.initAvailableExtensions(FunctionAvailabilityCache.java:116) at com.sun.opengl.impl.FunctionAvailabilityCache.isExtensionAvailable(FunctionAvailabilityCache.java:104) at com.sun.opengl.impl.GLContextImpl.isExtensionAvailable(GLContextImpl.java:314) at com.sun.opengl.impl.x11.X11GLContext.isExtensionAvailable(X11GLContext.java:256) at com.sun.opengl.impl.GLImpl.isExtensionAvailable(GLImpl.java:27851) at com.sun.opengl.impl.GLImpl.checkBufferObject(GLImpl.java:27992) at com.sun.opengl.impl.GLImpl.checkUnpackPBODisabled(GLImpl.java:28012) at com.sun.opengl.impl.GLImpl.glTexImage2D(GLImpl.java:19578) Please note that glTexImage2D is indeed called on the correct (and cureent) context. Because of problems with generating the GLImpl code I cannot have a look at how you've attempted to optimize texture loading, although the intent is obvious from the stack backtrace. To me this looks a lot like JOGL fails to catch that exception and therefore is unable to fall back to a plain call of glTexImage2D. If this is what happens, then this behaviour is clearly a bug. ---- Additional Comments From gmueckl 2006-02-22 18:12:48 ---- I forgot to mention that this happens with the nightly build from 2006-02-22. ---- Additional Comments From kbr 2006-02-22 20:45:52 ---- It looks like there has been a bug basically forever in the X11ExternalGLContext code where the mostRecentDisplay was never set, causing failure of extension queries. I find it hard to believe that this could have been broken for this long, but it's pretty clear a bug was there. It's been fixed in the JOGL tree and will show up in the nightly build of 2/23. Please retest with that build or later and verify the fix. Please also double-check that the application is calling makeCurrent()/release() on the external GLContext, which is required even though it will not change the actual underlying OpenGL context. FYI, this had nothing to do with texturing specifically. ---- Additional Comments From gmueckl 2006-02-23 12:35:47 ---- OK, there are no more exceptions with the new version, so it appears to be fixed. Thanks! ---- Additional Comments From kbr 2006-02-23 15:06:30 ---- Marking bug as fixed. --- Bug imported by sgothel@jausoft.com 2010-03-24 07:48 EDT --- This bug was previously known as _bug_ 206 at https://jogl.dev.java.net/bugs/show_bug.cgi?id=206