cunha-renato/msdf_font

How cunha-renato/msdf_font works

msdf_font is a Rust MSDF/SDF glyph rasterization library with optional atlas generation. The documented workflow starts with a parsed font face, builds glyph geometry, generates a distance-field bitmap, and exposes its bytes for image output; atlas mode builds glyphs, packs them, and rasterizes them into a shared bitmap. Geometry, distance selection, and error correction are distinct internal stages. Error correction is a documented capability, but its invocation point is not established by the excerpts, so no connection to the rasterization path is asserted.

Main entry points: shape.rs Shape rasterizer · mod.rs Atlas builder · shape_distance_finder.rs Distance finder · glyph.rs Glyph builder

Components 17

Glyph workflow

Glyph builder src/glyph.rs
Bitmap storage src/bitmap.rs

Shape geometry

Shape rasterizer src/shape.rs
Contours src/contour.rs
Shape edges src/edge.rs
Bounds src/bounds.rs
Edge coloring src/edge_color.rs
Curve solvers src/solvers.rs

Distance fields

Distance finder src/shape_distance_finder.rs
Distance selectors src/edge_selector.rs
Distance math src/distance.rs
Error correction src/error_correction/mod.rs
Artifact classifier src/error_correction/artifact_classifier.rs

Atlas generation

Atlas builder src/atlas/mod.rs
Rectangle packer src/atlas/packer.rs
Atlas bitmap region src/atlas/bitmap.rs

Other components

Font consumer

Connections 17

Font consumer → Glyph builder: builds glyphs README.md
Glyph builder → Shape rasterizer: uses shape src/glyph.rs
Font consumer → Bitmap storage: reads output bytes README.md
Shape rasterizer → Contours: uses contours src/shape.rs
Shape rasterizer → Shape edges: uses edges src/shape.rs
Shape rasterizer → Bounds: uses bounds src/shape.rs
Shape rasterizer → Edge coloring: colors edges src/shape.rs
Shape rasterizer → Distance finder: queries distances src/shape_distance_finder.rs
Distance finder → Shape rasterizer: reads shape src/shape_distance_finder.rs
Distance finder → Distance selectors: uses selectors src/shape_distance_finder.rs
Shape edges → Curve solvers: solves curves src/edge.rs
Error correction → Artifact classifier: classifies artifacts src/error_correction/mod.rs
Font consumer → Atlas builder: builds atlas README.md
Atlas builder → Glyph builder: builds glyphs src/atlas/mod.rs
Atlas builder → Rectangle packer: packs glyphs src/atlas/mod.rs
Atlas builder → Atlas bitmap region: writes regions src/atlas/mod.rs
Atlas bitmap region → Bitmap storage: uses bitmap data src/atlas/bitmap.rs

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Drawn by GitDiagram on September 30, 2026 from the repository's file tree, README and source files. Read as Markdown ·