blink::PaintPropertyTreeBuilder
Blink28610 Okt 2025

blink::PaintPropertyTreeBuilder

builds/updates paint property trees.

Consumes the layout/fragment data and produces the four paint property trees (Transform, Clip, Effect, Scroll) for the current frame. These trees encode coordinate systems, clipping, visual effects, and scrolling in a way that can be reused across frames and mapped into cc. (Chromium Git Repositories)

Key idea
It decides when nodes change values vs. structure (important for fast paths like “directly update compositor node”), and prepares the property state used to key paint chunks later. (Chromium Git Repositories)

Hands off to: the actual recording of display items with property‑tree state.

Avsnitt(396)

blink::PaintArtifact

blink::PaintArtifact

The immutable package of paint chunks + display items for this frame, used to drive compositing without re‑painting.

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blink::TransformPaintPropertyNode / ClipPaintPropertyNode / EffectPaintPropertyNode / ScrollPaintPropertyNode

blink::TransformPaintPropertyNode / ClipPaintPropertyNode / EffectPaintPropertyNode / ScrollPaintPropertyNode

The paint property trees captured during painting (transform, clip, effect/opacity, scroll offset) that define visual & coordinate‑space state.

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blink::PaintController

blink::PaintController

Records drawing into a DisplayItemList, segmenting it into PaintChunks keyed by property‑tree state. (Output: a PaintArtifact.)

21 Sep 202533min

blink::LayoutView (root of the layout tree)

blink::LayoutView (root of the layout tree)

Computes geometry for boxes when layout is dirty.

21 Sep 202539min

blink::StyleEngine / style resolver

blink::StyleEngine / style resolver

Recalculates computed styles that changed since last frame (if any).

21 Sep 202542min

blink::Page → blink::LocalFrame / LocalFrameView

blink::Page → blink::LocalFrame / LocalFrameView

The document’s frame & viewport; LocalFrameView is the scrollable root that triggers layout/paint when needed. provided source outlines the fundamental components of the Blink rendering engine, specif...

21 Sep 202539min

blink::WebViewImpl

blink::WebViewImpl

The source text provides an in-depth explanation of the blink::WebViewImpl class within Chromium's Blink rendering engine, characterizing it as the central control point on the renderer's main thread ...

20 Sep 202539min

cc::LayerTreeHost in Chromium's Compositor

cc::LayerTreeHost in Chromium's Compositor

The source provides an extensive technical explanation of the cc::LayerTreeHost class, which acts as the central main-thread component in the Chromium compositor architecture. It details how this comp...

20 Sep 202537min

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