pub fn quantize_colors(
colors: &[[f32; 4]],
) -> impl Iterator<Item = CompressedColor> + '_Expand description
Quantize [f32; 4] colors to Unorm8x4, clamping out-of-range
components.
Colors are normally already [u8; 4] and need no conversion; this is
for callers whose colors come from a float source such as a [glam::Vec4].
Computed on demand, so nothing is allocated.