eglView.init("TestCPP",960,640); is more usable as eglView.init("TestCPP",900,640);

The normal resolution is: 960x640 (CocoStudio has it also).
And not the current default 900x640 on TestCpp

  eglView.init("TestCPP",900,640);

Should be changed to 960x640.
Only a probosal.