Porting my C++ app to run in a browser

Question

Is there an easy way to port a C++ OpenGL app to a browser? It's already ported to PC, Mac and iOS. If there is some relatively easy way, would that be portable between computer browsers? I would have to use different binaries for different platforms, of course. I remember hearing something about some sandboxed environment for Chrome some time ago, but that would exclude the other browsers. How did they (id?) do with Quake in the browser?

Answer 1

If you're already targeting ES 2.0 for iOS your shaders should work as-is with WebGL. JavaScript ahoy!

id Software uses a giant plugin for Quake Live.

Answer 2

Try Google's Native Client or NaCl, if you want a lazy port.

But if you want to do a real port - refer to those two examples:

• blog series about porting existing C++ game to html5 (sponsored by Opera)
• short article about porting existing Objective-C game to html5 (sponsored by Microsoft).
• sad example of porting popular copyrighted game from C to JavaScript (sponsored by Mozilla, with extra help of Zenimax)

If you was asking about QuakeLive - that is a custom plugin, made by Id Software. Similar functionality can be achieved with Flash or Unity plugins.