I&#39;d like to use some OpenGL resources (VBOs, textures, shaders, and shader programs) in a functional way, with immutability, garbage collection, and IO-free creation interfaces.  Has anyone played with doing such a thing?  I guess the GC part would involve foreign pointers with foreign finalizers (which now run promptly in GHC iiuc).  I don&#39;t know of any reliable way to add finalizers to Ptr values, because of the unboxing problem [1].<br>

<br>One tricky issue is that graphics context initialization must take place before any of these &quot;pure&quot; resources get evaluated.  If the APIs allowed access to to multiple graphics contexts, things would get stickier.<br>

<br>Comments?<br><br>  - Conal<br><br>[1] <a href="http://www.haskell.org/ghc/docs/latest/html/libraries/base/System-Mem-Weak.html#v%3AaddFinalizer">http://www.haskell.org/ghc/docs/latest/html/libraries/base/System-Mem-Weak.html#v%3AaddFinalizer</a><br>

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