Function ReadIntensity 

pub unsafe extern "C" fn ReadIntensity(
    pwrptr: *mut *mut *mut f32,
    pwr1ptr: *mut *mut *mut f32,
    pwr2ptr: *mut *mut *mut f32,
    infiles: *mut infileT,
    linelen: c_long,
    nlines: c_long,
    params: *mut paramT,
    tileparams: *mut tileparamT,
) -> c_int

Reads the intensity information from specified file(s). If possilbe, sets arrays for average power and individual powers of single-pass SAR images.