Function IntegerScaling::calculateRatios

pub fn calculateRatios(
    areaWidth: u32, 
    areaHeight: u32, 
    imageWidth: u32, 
    imageHeight: u32, 
    aspectX: f64, 
    aspectY: f64
) -> Ratios

Calculates integer scaling ratios potentially different for X/Y axes as a result of aspect-ratio correction (rectangular pixels).