Struct GpuFrameSpans 

pub struct GpuFrameSpans { /* private fields */ }

One frame’s GPU span durations, in the caller’s own span order.

The span names are the caller’s business — this crate knows only how many there are and which index each pass was charged to. frust-engine’s diag::EngineSpan is the naming this repo’s engine tier uses.

Implementations

impl GpuFrameSpans

pub fn zeroed(len: usize) -> Self

An all-zero reading over len spans (clamped to MAX_SPANS).

pub fn len(&self) -> usize

How many spans this reading covers.

pub fn is_empty(&self) -> bool

Whether this reading covers no spans at all.

pub fn span(&self, index: usize) -> Duration

The duration charged to index, or Duration::ZERO past the end — a span no pass was charged to is genuinely zero, so an out-of-range index answering the same is the honest reading rather than a silent failure mode.

pub fn as_slice(&self) -> &[Duration]

Every span in order.

pub fn total(&self) -> Duration

The sum of every span — the frame’s total attributed GPU pass time.

Deliberately a sum rather than last-end-minus-first-begin: the gaps between a frame’s passes are queue and driver time this ring cannot attribute to any pass, and folding them into a “total” would report work the breakdown below it does not account for.

Trait Implementations

impl Clone for GpuFrameSpans

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for GpuFrameSpans

impl Debug for GpuFrameSpans

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

Formats the value using the given formatter.

impl Default for GpuFrameSpans

fn default() -> Self

Returns the “default value” for a type.

impl Eq for GpuFrameSpans

impl PartialEq for GpuFrameSpans

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for GpuFrameSpans