Function ippiAlphaCompC_16u_C3IR 

pub unsafe extern "C" fn ippiAlphaCompC_16u_C3IR(
    pSrc: *const u16,
    srcStep: i32,
    alpha1: u16,
    pSrcDst: *mut u16,
    srcDstStep: i32,
    alpha2: u16,
    roiSize: IppiSize,
    alphaType: u32,
) -> i32