Struct Layout 

struct Layout {
    depth: usize,
    axis_count: usize,
    index_count: usize,
    region_count: usize,
    leaf: usize,
}

The size of a composite’s working memory and how it is split.

A single buffer from the caller holds every slice that the walk uses. The slices are taken in descending order of alignment so that only the first one can need padding. The memory for drawing leaves comes last.

Fields

depth: usize

The nesting depth of the composites, at least one.

axis_count: usize

index_count: usize

The length of the longest axis index list, which sizes the axis indices, their values and their deltas.

region_count: usize

leaf: usize

The size in bytes of the memory needed by the largest leaf.

Implementations

impl Layout

fn tuple_len(&self) -> usize

Returns the length of the longest delta tuple a component reads.

fn packed_len(&self) -> Option<usize>

Returns the size in bytes of the buffer needed for carve to succeed.

Returns None if the table has more regions than memory can hold.

fn carve<'m>(&self, buf: &'m mut [u8]) -> Option<Memory<'m>>

Splits buf into the slices used by a draw, or returns None if it is too short.

Trait Implementations

impl Clone for Layout

fn clone(&self) -> Layout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Layout

impl Debug for Layout

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

Formats the value using the given formatter.

impl Eq for Layout

impl PartialEq for Layout

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Layout