@orillusion/core

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Class: LifetimeAnalyzer

Defined in: src/gfx/renderJob/graph/transient/LifetimeAnalyzer.ts:58

Compile-time lifetime analysis over the TransientResourceRegistry's declarations and the compiled pass order. Invoked from RenderGraph.compile() immediately after topoSort; output drives the transient texture + buffer pools.

The analyzer walks the topo order and updates each resource's [firstUseIdx, lastUseIdx] envelope from every pass's reads / writes / _lifetimeReads / _lifetimeWrites arrays. The _lifetime* arrays are populated by the typed-RT builders (borrowRenderTarget etc., Phase 2) to extend a resource's lifetime without polluting the topo edge set; Phase 0 tolerates their absence.

Constructors

Constructor

new LifetimeAnalyzer(): LifetimeAnalyzer

Returns

LifetimeAnalyzer

Methods

analyze()

static analyze(order, byName, registry, presentationSize): ResourceLifetime[]

Defined in: src/gfx/renderJob/graph/transient/LifetimeAnalyzer.ts:68

Analyze one compile window.

Parameters

order

readonly string[]

Topo-sorted pass names from topoSort.

byName

ReadonlyMap<string, RenderGraphPass>

Pass lookup map.

registry

TransientResourceRegistry

Per-graph transient registry populated during setup.

presentationSize

readonly [number, number]

[width, height] of the owning view's canvas. Used to resolve 'screen' / 'screen/2' size tokens.

Returns

ResourceLifetime[]