pub fn logical_size(
physical_width: u32,
physical_height: u32,
scale: f64,
) -> (f64, f64)Expand description
Logical (density-independent) size from a physical pixel size and an
already-sanitize_scaled scale factor, mirroring the desktop shell’s
HiDPI math: lay out in logical pixels, then scale the scene
by scale so glyphs re-rasterise sharp at physical resolution.