Module atlas 

Glyph bitmap atlas cache for efficient text rendering.

This module provides a glyph bitmap atlas cache that:

• Rasterizes glyphs once and reuses the bitmaps for subsequent draws
• Packs glyph bitmaps into shared atlas images using guillotiere
• Uses stable glyph keys for reliable cache hits
• Supports multiple atlas pages for scalability
• Implements simple age-based eviction

The core type is GlyphAtlas, which handles allocation, eviction, and pending-command queues.

Re-exports

pub use cache::GlyphCacheStats;

pub use cache::GLYPH_PADDING;

pub use cache::GlyphAtlas;

pub use cache::GlyphCacheConfig;

pub use cache::PendingBitmapUpload;

pub use cache::PendingClearRect;

pub use commands::AtlasCommand;

pub use commands::AtlasCommandRecorder;

pub use commands::AtlasPaint;

pub use key::GlyphCacheKey;

Modules

cache

Glyph atlas cache with LRU eviction.

commands

Deferred atlas rendering commands.

key

Cache key for glyph bitmaps stored in the atlas.

region 🔒

Atlas slot and rasterization data structures.

Structs

AtlasConfig

Configuration for multiple atlas support.

AtlasSlot

Location and metrics of a cached glyph within an atlas page.

ImageCache

Manages image resources for the renderer.

RasterMetrics

Metadata for a rasterized glyph (no pixel data).