blink::TransformPaintPropertyNode / ClipPaintPropertyNode / EffectPaintPropertyNode / ScrollPaintPropertyNode
Blink28610 Okt 2025

blink::TransformPaintPropertyNode / ClipPaintPropertyNode / EffectPaintPropertyNode / ScrollPaintPropertyNode

These are the nodes within those four trees. Every piece of painted content (a “paint chunk”) is associated with a tuple of (Transform, Clip, Effect, Scroll) nodes—its PropertyTreeState. This precisely defines where and how to draw it and enables efficient partial updates. (Chromium Git Repositories)

What they carry (high‑value fields)

Change tracking Nodes track change types (PaintPropertyChangeType) so we can choose fast paths (e.g., update value without rebuilding topology). (Chromium Git Repositories)

Hands off to: painting/recording with GraphicsContext + PaintController.


Episoder(397)

CSS Backdrop-Filter

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The sources provide an extensive technical explanation of the CSS backdrop-filter property within Google Chrome's Blink rendering engine. This deep dive details how the feature, which allows filters l...

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Chrome Compositor Animation Architecture (cc)

Chrome Compositor Animation Architecture (cc)

The sources provide an extensive architectural overview of the Chrome Compositor Animation (cc) subsystem, which is responsible for executing visual animations like transforms and opacity changes effi...

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Blink's Graph Data Structures and Traversals

The text provides an extensive overview of the graph-structured data structures used within Blink, Chromium's rendering engine, detailing how web content is processed from initial input to final displ...

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blink::PropertyTreeManager

blink::PropertyTreeManager

bridges Blink property trees → cc property trees. Given Blink’s Transform/Clip/Effect/Scroll nodes (from paint property trees), this class creates/updates the cc counterparts (cc::TransformNode, cc::C...

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blink::PaintArtifactCompositor

blink::PaintArtifactCompositor

turns chunks into compositor layers & updates cc property trees. Consumes the new PaintArtifact and does the layerization and property‑tree updates required for compositor draw. It supports fast paths...

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blink::PaintChunk and blink::DisplayItemList

blink::PaintChunk and blink::DisplayItemList

grouping and content. PaintChunk: groups sequential display items that share the same property‑tree state and cull/visibility; it’s the unit we layerize and invalidate.DisplayItemList: the recorded Sk...

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blink::PaintArtifact

blink::PaintArtifact

the immutable “what to draw” package for this frame. A PaintArtifact is the product of Blink painting: a DisplayItemList plus an ordered vector of PaintChunks. It is immutable post‑creation and design...

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