Module ffi 

C-ABI compatible types for FFI consumers.

This module provides #[repr(C)] types that can be safely passed across FFI boundaries. These types mirror the internal Rust types but use C-compatible layouts for integration with C, Python (via ctypes/cffi), and other languages.

Memory Ownership

• Types ending in C are C-ABI compatible copies
• Slice views (*const T, len) are borrowed - caller must not free
• Owned arrays should be freed via the corresponding _free() function

Example (conceptual C usage)

TypfShapingResultC result;
int err = typf_shape_text("hb", "Hello", "/path/font.ttf", 24.0, &result);
if (err == 0) {
    for (uint32_t i = 0; i < result.glyph_count; i++) {
        printf("Glyph %u at (%.1f, %.1f)\n",
               result.glyphs[i].glyph_id,
               result.glyphs[i].x,
               result.glyphs[i].y);
    }
    typf_shaping_result_free(&result);
}

Structs

GlyphIterator

Glyph iterator for zero-copy consumption.

GlyphMesh

A mesh of triangles for GPU rendering.

PositionedGlyphC

C-ABI compatible positioned glyph.

RenderMesh

A collection of glyph meshes ready for GPU rendering.

ShapingResultC

C-ABI compatible shaping result.

Vertex2D

Vertex for GPU rendering (2D position only).

VertexColor

Vertex with position and RGBA color.

VertexUV

Vertex with position and UV coordinates for textured rendering.

Enums

DirectionC

Text direction as a C-compatible enum.