SWFgl is a project mainly written in C, it's free.
c-lib to use swf files with opengl
SWFgl is a c-lib intended to used with opengl loading/running swf files.
This project under the GPL v2 until I deem otherwise.
Useful links: http://www.the-labs.com/MacromediaFlash/SWF-Spec/SWFfileformat.html http://www.m2osw.com/swf_alexref.html