virtualbox.org

I'm probably doing everything wrong this being a first post ...

I'm running VirtualBox under Vista, guest OS being XP/SP3. Guest additions are versioned as Virtual Box Guest Additions 3.2.8r64453. The logfile shows - among other stuff - this (I can post the full log if required):

• VirtualBox 3.2.8 r64453 win.x86 (Aug 5 2010 14:06:59)
• OpenGL Info: Render SPU: GL_VENDOR: NVIDIA Corporation
• OpenGL Info: Render SPU: GL_RENDERER: GeForce 8400M GS/PCI/SSE2
• OpenGL Info: Render SPU: GL_VERSION: 2.1.1
• OpenGL Info: Render SPU: GL_EXTENSIONS: ...
• Shared crOpenGL service loaded.

Now, I have a piece of OpenGL code which uses glGetVertexAttribiv() with attribute GL_VERTEX_ATTRIB_ARRAY_ENABLED. This call is supposed to return a single integer. It does so running natively under Vista and XP. Running inside the VM with guest additions installed will return said integer but the call also corrupts the following 3 integer locations in memory (same values for a given VM session but different between sessions).

Is this a known issue? I thought before I report this as a bug I get an opinion here. FWIW other calls like e.g. glGetIntegeriv don't have this issue so it could be specific to the way this particular function is implemented.

Thanks

See Chapter 4.5.1. Hardware 3D acceleration (OpenGL and Direct3D 8/9) in your VirtualBox users guide.
Most of this is still experimental. You can post a ticket at bugtracker but most of these are being worked on already.

Thanks, much appreciated.