Struct BufferLengths 

pub struct BufferLengths {
    pub points: u32,
    pub contours: u32,
    pub unscaled: u32,
    pub deltas: u32,
    pub iup: u32,
    pub composite_deltas: u32,
}

How long each scratch buffer an outline needs has to be.

These are element counts, not byte lengths: the element types differ per buffer and, for the coordinate buffers, per Scale. For the bytes one block needs to hold them all, see packed_len.

Created by OutlinePlan::buffer_lengths.

Fields

points: u32

Scaled points, including phantom points. The flag buffer is this long too, since there is one flag per point.

contours: u32

Contour end point indices.

unscaled: u32

Points in font units, or zero when the Scale does not keep them.

deltas: u32

Accumulated variation deltas, or zero for a non-variable draw.

iup: u32

Working space for interpolating sparse deltas.

composite_deltas: u32

Per-component deltas for composite glyphs.

Implementations

impl BufferLengths

pub fn packed_len<S: Scale>(&self) -> usize

The number of bytes Buffers::from_bytes needs to carve every buffer from one block.

Includes room to align the block, which need not be aligned already. Zero when the outline needs no storage.

Trait Implementations

impl Clone for BufferLengths

fn clone(&self) -> BufferLengths

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for BufferLengths

impl Debug for BufferLengths

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

Formats the value using the given formatter.

impl Default for BufferLengths

fn default() -> BufferLengths

Returns the “default value” for a type.

impl Eq for BufferLengths

impl PartialEq for BufferLengths

fn eq(&self, other: &BufferLengths) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for BufferLengths