:ihavenomouth: on Nostr: I moved 1 (one) integer division out of a hot loop, and the entire thing now runs ...

I moved 1 (one) integer division out of a hot loop, and the entire thing now runs 8-10% faster. I can't move the second division, but I can replace both with bit shifts. The downside is that I won't be able to support 4x or 3:x:y chroma subsampling (implicitly allowed by the specification) which is not actually a downside because fuck you if you use it