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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
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events were not properly waiting for the Animator to stop.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@55 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4
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to VertexBufferObject demo for storing element indices in element
array buffer, though this didn't end up improving performance.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@22 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4
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git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@21 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4
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if the address and capacity of the underlying buffer object haven't
changed. This saves applications the cost of re-slicing the returned
buffer each frame and avoids allocation of one or more finalizable
objects per frame. Moved GlueGen's checking of whether a passed buffer
is direct up into Java from C to be able to handle buffers that wrap
the NULL pointer (needed for the "buffer offsets" used by
ARB_vertex_buffer_object). Ported the VertexArrayRange demo to
VertexBufferObject. Currently slower than VertexArrayRange but needs
to be updated to triangulate the geometry more efficiently (currently
the triangle strips are only 48 vertices long) and to move the indices
into fast RAM.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@20 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4
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