Render thread checks for OpenGL 2.0 support in software only

[Connor Behan]

The code has a perfect opportunity to check for OpenGL >= 2.0 and exit gracefully if it is not present. I know 1.2 users that try to get Lightspark to work and see every error message except the one that matters. Patch also contains a note about TrueColor being assumed by Lightspark. Another reason why someone might be unable to diagnose a crash.

[Jani Monoses (jani)]

The patch checks GLX version which currently is at 1.4 so the checks always fails. Moreover returning NULL there does not abort lightspark, exit() would.

[Connor Behan (connor-behan)]

Oh true. Would glGetString(GL_VERSION) be reliable enough?

[Alessandro Pignotti (a-pignotti)]

Feel free to 'fork' the project on github to provide an updated patch. Any contribution is, of course, very welcome.

I'm not really sure about how reliable glGetString(GL_VERSION) is.