#273 glGenerateMipmap undefined in virtualbox
Hello,
I'm running an app built with Minko (http://minko.io). We use glew on Windows. I've recently tried to compile/run a simple example app (source: https://github.com/aerys/minko/tree/master/example/cube) inside a Windows 7 SP1 VM running inside VirtualBox. I'm using GLEW 1.12.0.
I've installed VirtualBox and setup hardware acceleration properly: GPU Caps tells me I have OpenGL 2.1 and I can run OpenGL apps. But my app crashes because of glGenerateMipmap.
How to reproduce:
Call glGenerateMipmap from the app running in a VirtualBox Windows 7 VM.
It looks like glGenerateMipmap is a null pointer.
Expected behavior:
The app should not crash and calling glGenerateMipmap should have the behavior specified by the OpenGL 2.1 specification.
Workaround:
Calling glGenerateMipmapEXT works fine though:
undef glGenerateMipmap
define glGenerateMipmap glGenerateMipmapEXT
I'm guessing it's not the way to go and that's not really portable. Any idea of how to fix this properly?
Thank you,
Discussion
My bad: glGenerateMipmap is not available before OpenGL 3.0, and VirtualBox has OpenGL 2.1
https://www.opengl.org/sdk/docs/man/html/glGenerateMipmap.xhtml
No worries, thanks for the follow-up.