pub unsafe extern "C" fn ippiAlphaCompC_32f_C1R(
pSrc1: *const f32,
src1Step: i32,
alpha1: f32,
pSrc2: *const f32,
src2Step: i32,
alpha2: f32,
pDst: *mut f32,
dstStep: i32,
roiSize: IppiSize,
alphaType: u32,
) -> i32