Blink PrePaint: Fragment Traversal and Paint Property Tree Construction
Blink28629 Joulu 2025

Blink PrePaint: Fragment Traversal and Paint Property Tree Construction

The provided text explains the PrePaint phase within Blink’s rendering engine, a critical stage where the system prepares for visual output by invalidating old paint and building property trees. During this process, a tree walk traverses the layout and fragment trees to establish hierarchical relationships for CSS properties like transforms, clips, and effects. This traversal is optimized to skip clean subtrees, ensuring that only "dirty" elements or those affected by ancestor changes are processed. The system specifically manages complex scenarios such as block fragmentation and out-of-flow elements, ensuring they are correctly positioned within their containing blocks. Results are stored in FragmentData objects, which provide the essential coordinate and property state used by the subsequent Paint phase to generate display items. Ultimately, this phase bridges the gap between layout geometry and the final composited layers sent to the screen.


Jaksot(397)

HTML & CSS Evolution: Key Proposals (2022-2025)

HTML & CSS Evolution: Key Proposals (2022-2025)

The provided text details several significant advancements in HTML and CSS capabilities between 2022 and 2025, largely driven by Blink (Chrome) team involvement and collaborative cross-browser standar...

14 Syys 20251h 2min

Mastering Blink: Developing for the Web Platform

Mastering Blink: Developing for the Web Platform

This extensive guide thoroughly explains the process of developing features for Blink, Chromium's rendering engine, focusing on HTML/CSS. It begins by highlighting the critical role of web standards (...

14 Syys 20251h 22min

Mastering Modern Web Platform Development in Blink

Mastering Modern Web Platform Development in Blink

This extensive guide, "Mastering Modern Web Platform Development in Blink," offers a structured curriculum for C++ engineers new to the Chrome/Blink team, focusing on HTML/CSS standards implementation...

14 Syys 202547min

Blink Team Essentials: Browser Engine Fundamentals for Engineers

Blink Team Essentials: Browser Engine Fundamentals for Engineers

This document outlines twelve essential topics for new members of the Blink team, Google Chrome's rendering engine. It covers fundamental aspects of browser architecture, detailing the multi-process m...

14 Syys 20251h 13min

Chrome Blink Development and Debugging Guide

Chrome Blink Development and Debugging Guide

The provided text offers a comprehensive guide to developing and debugging the Chrome Blink rendering engine. It outlines the essential commands and workflows, starting with setting up and updating th...

7 Syys 20251h

Testing New CSS Features for the Web Platform

Testing New CSS Features for the Web Platform

This guide outlines the process of creating and implementing Web Platform Tests (WPT) for a new CSS feature within Chromium's Blink engine. It details steps from initial feature implementation under a...

7 Syys 20251h 23min

Blink's Rendering Engine: A Forest of Trees

Blink's Rendering Engine: A Forest of Trees

The provided source details the intricate rendering pipeline of Google Chrome's Blink engine, explaining how web content transforms from HTML/CSS into on-screen pixels. It outlines a sequence of speci...

6 Syys 202540min

Blink's StyleEngine: Chromium CSS Deep Dive

Blink's StyleEngine: Chromium CSS Deep Dive

The provided document details Blink's StyleEngine, a crucial component within Chromium's rendering engine responsible for managing all CSS styles for a web document. It orchestrates style data and ope...

5 Syys 202555min