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authorKenneth Russel <[email protected]>2005-05-07 00:45:24 +0000
committerKenneth Russel <[email protected]>2005-05-07 00:45:24 +0000
commit7b17f6f020c4c58c50e42da800a1ceb34a5b3cbf (patch)
treeb3506dd03239e2ebd641b6300d27a1a751effae3 /www/jcanyon_sm.jpg
parente5f602657d568b8a3ad6ac784f2d8d08921f46af (diff)
Fixed Issue 151: starting up the Animator before the GLJPanel has been shown result in an error
The root cause of this error was the fact that WindowsPbufferGLContext.destroyImpl() uses WGL extensions to clean up resources associated with the pbuffer. Because these extensions are in the public WGL interface, they are wrapped by the DebugGL. However, an OpenGL context is not current at the time these routines are called, and it is illegal to call glGetError() at those points. The DebugGL pipeline was implicitly calling glGetError() after each of those calls, leading to the failure. This bug unmasked a couple of others. The code in the DebugGL needed a recursion count to make sure that glGetError() didn't get called in an infinite loop. Also, as a side effect of the fix for Issue 160, calling getGL() on the GLJPanel outside of GLEventListener.init() was causing a NullPointerException to be thrown. The GLJPanel has been fixed to return null in this case, and the specification of GLDrawable.getGL() has been improved. In order to make the behavior between the GLCanvas and GLJPanel similar, the GL object is now reset in the GLDrawable each time the underlying OpenGL context is recreated. This allows end users to set up e.g. the DebugGL unconditionally in their GLEventListener.init() method. The JOGL demos have been changed to reflect this. The test case in the bug report will be updated with code similar to the originally submitted test case (i.e., the Animator is started early) but which now works. git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@71 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4
Diffstat (limited to 'www/jcanyon_sm.jpg')
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