static void nsc_encode_sse2(NSC_CONTEXT* context, const BYTE* data,
                            UINT32 scanline)
{
	nsc_encode_argb_to_aycocg_sse2(context, data, scanline);

	if (context->ChromaSubsamplingLevel > 0)
	{
		nsc_encode_subsampling_sse2(context);
	}
}
The software writes data past the end, or before the beginning, of the intended buffer.