Struct SdfCacheKey 

pub struct SdfCacheKey {
    pub glyph_id: u16,
    pub font_id: u32,
}

SDF glyph cache key - size-independent for scale-free rendering.

Unlike bitmap glyphs which need different cache entries per font size, SDF glyphs are rendered at a fixed base size (48px) and scaled via shader, so we only need glyph_id and font_id as cache keys.

Fields

glyph_id: u16

The glyph ID within the font

font_id: u32

The font ID (for supporting multiple fonts)

Implementations

impl SdfCacheKey

pub fn from_cache_key(cache_key: CacheKey) -> Self

Create a new SDF cache key from a cosmic-text CacheKey.

Extracts glyph_id and font_id, ignoring size-related fields since SDF glyphs are resolution-independent.

Trait Implementations

impl Clone for SdfCacheKey

fn clone(&self) -> SdfCacheKey

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SdfCacheKey

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for SdfCacheKey

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for SdfCacheKey

fn eq(&self, other: &SdfCacheKey) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for SdfCacheKey

impl Eq for SdfCacheKey

impl StructuralPartialEq for SdfCacheKey