Function cogl_sys::cogl_sub_texture_new

pub unsafe extern "C" fn cogl_sub_texture_new(
    ctx: *mut CoglContext, 
    parent_texture: *mut CoglTexture, 
    sub_x: c_int, 
    sub_y: c_int, 
    sub_width: c_int, 
    sub_height: c_int
) -> *mut CoglSubTexture