Function ippiAlphaComp_8u_AC4IR 

pub unsafe extern "C" fn ippiAlphaComp_8u_AC4IR(
    pSrc: *const u8,
    srcStep: i32,
    pSrcDst: *mut u8,
    srcDstStep: i32,
    roiSize: IppiSize,
    alphaType: u32,
) -> i32