pub fn mul_div_no_round(a: i32, b: i32, c: i32) -> i32
Fixed point multiply and divide without rounding: a * b / c
Based on https://gitlab.freedesktop.org/freetype/freetype/-/blob/57617782464411201ce7bbc93b086c1b4d7d84a5/src/base/ftcalc.c#L200