Struct FeatureVarsStorage 

struct FeatureVarsStorage {
    status: AtomicU32,
    gsub: AtomicU32,
    gpos: AtomicU32,
}

Lazy atomic storage for feature variation selections.

We don’t want to load the GSUB and GPOS tables unless explicitly requested.

Fields

status: AtomicU32

gsub: AtomicU32

gpos: AtomicU32

Implementations

impl FeatureVarsStorage

const UNCHECKED: u32 = 0

We haven’t checked yet.

const PRESENT: u32 = 1

We have a selected feature variation.

const ABSENT: u32 = 2

We don’t have a selected feature variation.

const BOTH_ABSENT: u32

Both GSUB and GPOS don’t have a selected feature variation.

const GPOS_SHIFT: u32 = 16

GPOS status is packed in the high 16 bits. GSUB status is packed in the low 16 bits.

fn new() -> Self

fn load(&self, font: &Font, coords: &[NormalizedCoord]) -> FontFeatureVariations

Trait Implementations

impl Default for FeatureVarsStorage

fn default() -> Self

Returns the “default value” for a type.