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Portable PNG exporter
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Date: 2008-09-20 (17:37)
From: Janne Hellsten <jjhellst@g...>
Subject: Portable PNG exporter
Hi list,

While working on a graphics related problem, I needed to save the
contents of a Graphics framebuffer to a .png file.  Quick googling for
"ocaml png" didn't bring up any results for libraries that would be
easy to install via GODI.  I am aware of CamlImages but unfortunately
I have never been successful at installing it due its heavy dependence
on external libraries.  I also often work on Windows and installing
external OCaml libraries on Windows is usually a major PITA (if
possible at all).

I decided to write a simple self-contained .png exporter that wouldn't
depend on any external libraries (not even libpng or zlib).  I thought
someone else might benefit from this piece of code and I thus made it
freely available here: