Hi.
My application draws many Objects using glDrawElements();
But, When I called GL_LINE_LOOP flag, My Cpu worked highly.
So, I wonder Line drawing use CPU instead of graphic accleration.
I am using PowerVR PC emulation OpenGL ES 1.1 common profile.
That depends on your graphics card and drivers. The PowerVR PC Emulation library is a layer on top of desktop OpenGL, and these calls are likely passed straight on to the OpenGL driver.