Struct GlyphCache 

pub struct GlyphCache { /* private fields */ }

Cache of built glyph paths and pre-rasterized cells.

Implementations

impl GlyphCache

pub fn new() -> Self

pub fn paths_len(&self) -> usize

Entry count of the glyph-path cache (for leak probes).

pub fn cells_len(&self) -> usize

Entry count of the pre-rasterized cell cache (for leak probes).

pub fn get_or_build( &mut self, font_hash: u64, glyph_id: u16, glyph_data: &OwnedGlyph, parsed_font: &ParsedFont, ppem: u16, ) -> Option<CachedGlyph<'_>>

Get a cached path, or build it on cache miss. Returns None if the glyph has no outline (e.g. space character).

pub fn get_or_build_cells( &mut self, font_hash: u64, glyph_id: u16, ppem: u16, glyph_x: f32, glyph_y: f32, scale: f32, is_hinted: bool, ) -> Option<(&[CellAa], i32, i32)>

Get cached rasterizer cells for a glyph, or build them from the path.

• glyph_x, glyph_y: final pixel position (used for sub-pixel quantization)
• scale: font-unit→pixel scale (0.0 for hinted glyphs)
• is_hinted: whether the path is in pixel coords (hinted) or font units

Returns the cached cells and the integer pixel offset to apply.

pub fn clear(&mut self)

Evict all cached paths and cells.

pub fn evict_if_needed(&mut self)

Evict caches if they exceed size limits. Called automatically by get_or_build / get_or_build_cells, but can also be called manually between frames to enforce bounds.

pub fn is_empty(&self) -> bool

Returns true if the path cache is empty.

pub fn len(&self) -> usize

Number of cached path entries.

pub fn cell_cache_len(&self) -> usize

Number of cached cell entries.