blink::PaintChunk and blink::DisplayItemList
Blink28610 Okt 2025

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 Skia/paint operations (text, images, paths, etc.). This split lets us reason about “where/how to draw” (chunk) vs. “what to draw” (items). (Chromium Git Repositories)

Hands off to: PaintArtifactCompositor for compositing decisions, then PropertyTreeManager to mirror trees into cc.


Episoder(396)

CSS Scroll Snap: Chromium Implementation and Specification

CSS Scroll Snap: Chromium Implementation and Specification

This documentation provides a comprehensive analysis of CSS Scroll Snap, specifically focusing on its technical implementation within Chromium’s Blink engine. It details how Level 1 specifications all...

5 Jan 31min

Implementing Scroll-Driven Animations in CSS and Blink Architecture

Implementing Scroll-Driven Animations in CSS and Blink Architecture

This text details the development and technical mechanics of CSS scroll-driven animations, a modern web feature that links animation progress to a container's scroll position rather than traditional c...

5 Jan 42min

Web Scrolling Mechanics: Focus and Viewport Synchronization

Web Scrolling Mechanics: Focus and Viewport Synchronization

Modern web standards and browser engines utilize sophisticated mechanisms to manage how elements are scrolled into view during navigation or script execution. CSS properties like scroll-padding and sc...

5 Jan 30min

Single-Axis Scroll Containers: Motivation and Implementation

Single-Axis Scroll Containers: Motivation and Implementation

The provided text details a technical implementation in the Blink rendering engine that enables single-axis scroll containers, allowing an element to scroll in one direction while remaining visible or...

3 Jan 31min

[EXTENDED] Blink and CC Thread: Implementing Position Sticky

[EXTENDED] Blink and CC Thread: Implementing Position Sticky

The provided text describes the technical workflow for managing sticky positioning within the Blink rendering engine and the Chromium compositor. This process begins on the main thread, where the engi...

2 Jan 42min

Blink and CC Thread: Implementing Position Sticky

Blink and CC Thread: Implementing Position Sticky

The provided text describes the technical workflow for managing sticky positioning within the Blink rendering engine and the Chromium compositor. This process begins on the main thread, where the engi...

2 Jan 31min

Paint Property Tree Testing: A Deep Dive

Paint Property Tree Testing: A Deep Dive

The provided text explains the PaintPropertyTreeBuilderTest, a C++ unit test suite within the Blink rendering engine of Chromium. This suite is essential for verifying the paint property trees—specifi...

2 Jan 35min

ScrollingTest: Suite

ScrollingTest: Suite

The ScrollingTest suite is a vital collection of unit tests designed to ensure the Blink rendering engine handles web scrolling with precision and efficiency. It systematically verifies how the browse...

2 Jan 25min

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