Either experimental or very latest Clutter can tile textures to be able to process images bigger than the hardware allows natively. However, last time I checked this feature was under experimental API, which means that you might need to change some Clutter API calls.
If such functionality in Clutter still isn't stable and is not going to be stable by 14.04, we're probably better off with developing an OpenGL ES codepath equivalent to the current OpenGL one.
Either experimental or very latest Clutter can tile textures to be able to process images bigger than the hardware allows natively. However, last time I checked this feature was under experimental API, which means that you might need to change some Clutter API calls.
If such functionality in Clutter still isn't stable and is not going to be stable by 14.04, we're probably better off with developing an OpenGL ES codepath equivalent to the current OpenGL one.