Module glyph_cache 

Backend-neutral glyph/render cache with byte-weighted eviction

Caches complete RenderOutput values keyed by the shaped glyph stream, render parameters, font identity, and renderer backend name. This sits in typf-core so every renderer can benefit without bespoke cache logic.

Memory safety: Uses byte-weighted eviction to prevent memory explosions. A 4MB emoji bitmap consumes 4000x more cache quota than a 1KB glyph.

Structs

GlyphCache

Byte-weighted render output cache

GlyphCacheKey

Stable key for render output caching

Type Aliases

SharedGlyphCache

Thread-safe shared glyph cache