Struct MemoryBudget 

pub struct MemoryBudget {
    pub shaping_bytes: usize,
    pub layout_bytes: usize,
    pub diff_bytes: usize,
    pub width_cache_entries: usize,
    pub shaping_cache_entries: usize,
}

Transient per-frame memory budget.

These are ceilings for scratch allocations that are live during a single frame. Persistent caches (width cache, shaping cache) are accounted separately in their own capacity configs.

Fields

shaping_bytes: usize

Maximum bytes for shaping scratch (glyph buffers, cluster maps).

layout_bytes: usize

Maximum bytes for layout scratch (constraint vectors, flex splits).

diff_bytes: usize

Maximum bytes for diff scratch (dirty bitmaps, change lists).

width_cache_entries: usize

Maximum entries in the width cache.

shaping_cache_entries: usize

Maximum entries in the shaping cache.

Implementations

impl MemoryBudget

pub const fn transient_total(&self) -> usize

Total transient ceiling (shaping + layout + diff).

Trait Implementations

impl Clone for MemoryBudget

fn clone(&self) -> MemoryBudget

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryBudget

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

Formats the value using the given formatter.

impl Display for MemoryBudget

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

Formats the value using the given formatter.

impl PartialEq for MemoryBudget

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for MemoryBudget

impl Eq for MemoryBudget

impl StructuralPartialEq for MemoryBudget