Module cache 

Glyph atlas cache with LRU eviction.

Structs

AtlasConfig

Configuration for multiple atlas support.

GlyphAtlas

Core glyph atlas cache data shared by all renderer backends.

GlyphCacheConfig

Configuration for glyph cache behavior.

GlyphCacheEntry 🔒

Internal cache entry storing atlas slot and access time.

GlyphCacheStats

Statistics about cached glyphs.

ImageCache

Manages image resources for the renderer.

PendingBitmapUpload

A bitmap glyph pixmap awaiting GPU upload.

PendingClearRect

An atlas region that must be cleared to transparent.

VarLookupKey 🔒

Lookup key for variable font caches (borrowed version).

Constants

EMPTY_GLYPH_MAP 🔒

Compile-time empty map for static (non-variable) glyph entries.

EMPTY_VAR_MAP 🔒

Compile-time empty map for variable-font glyph entries, keyed by variation coordinates.

GLYPH_PADDING

Padding in pixels added to each side of a glyph to prevent texture bleeding.

HASH_SEED 🔒

Fixed seed for deterministic hashing across all glyph cache maps.

Functions

push_clear_rect_for_slot 🔒

Queue a clear rect covering the full padded region of an evicted atlas slot.

Type Aliases

FixedHashMap 🔒

Deterministic hash map type alias.

VarKey 🔒

Key for variable font caches (owned version).