Switching rendering context between cocos2d-x and marmalade IwGL

Hello,

I would like to know if anyone know if it’s possible to switch rendering context between cocos2d-x and marmalade IwGL so I can perform a couple of post processing effects, namely the wave ripple effect that is found on the Tetris clone sample of the Marmalade SDK.

Does cocos2d-x have any post processing ability? For example take a screen position and apply a ripple sine wave to it?

TIA