Struct ShapingResultC 

#[repr(C)]
pub struct ShapingResultC {
    pub glyphs: *mut PositionedGlyphC,
    pub glyph_count: u32,
    pub advance_width: f32,
    pub advance_height: f32,
    pub direction: DirectionC,
    pub _reserved: [u8; 3],
}

C-ABI compatible shaping result.

Contains a pointer to an array of positioned glyphs plus metadata.

Memory Ownership

When returned from FFI functions, the caller owns the memory and must call typf_shaping_result_free() to release it. The glyphs pointer is valid until freed.

Null Safety

• glyphs may be null if glyph_count is 0
• Always check glyph_count before dereferencing glyphs

Fields

glyphs: *mut PositionedGlyphC

Pointer to array of positioned glyphs (owned)

glyph_count: u32

Number of glyphs in the array

advance_width: f32

Total horizontal advance width

advance_height: f32

Total vertical advance height

direction: DirectionC

Text direction

_reserved: [u8; 3]

Reserved for future use (padding)

Implementations

impl ShapingResultC

pub fn from_rust(result: &ShapingResult) -> Self

Creates a new ShapingResultC by converting from a Rust ShapingResult.

This allocates a new array for the glyphs. The caller is responsible for freeing it via free().

pub unsafe fn free(&mut self)

Frees the memory allocated for glyphs.

Safety

• Must only be called once per ShapingResultC
• The glyphs pointer must have been allocated by from_rust()

pub unsafe fn glyphs_slice(&self) -> &[PositionedGlyphC]

Returns a slice view of the glyphs.

Safety

The returned slice is valid only while this ShapingResultC is valid and has not been freed.

pub unsafe fn to_rust(&self) -> ShapingResult

Converts back to a Rust ShapingResult.

This creates a new owned Vec, leaving this ShapingResultC unchanged.

Safety

The glyphs pointer must be valid.

Trait Implementations

impl Debug for ShapingResultC

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.