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blogs.igalia.com
In recent years we have had an ongoing effort to improve graphics performance of the WebKit GTK and WPE ports. As a result of this we shipped features like threaded rendering, the DMA-BUF renderer, or proper vertical retrace synchronization (VSync). While these improvements have helped keep WebKit competitive, and even perform better than other engines in some scenarios, it has been clear for a wh
This blog post introduces sched_ext, a recently proposed extensible scheduler class. sched_ext allows you to write and run your custom process scheduler optimized for your target workloads and hardware architectures using BPF programs. In the rest of the post, I recap the concept of a scheduler at the high level and go over the default schedulers in Linux kernel. Then, I introduce why an extensibl
This article is written by referring to the Multiple Page Architecture document. Motivation According to the Google Chromium team, some years ago it turned out that the BFCache(Back/Forward cache), Portals, Guest Views, and Prerender faced the same fundamental problem of having to support multiple pages in the same tab, but were implemented with different architecture models. BFCache and pending d
Introduction The Steam Deck is a handheld gaming computer that runs a Linux-based operating system called SteamOS. The machine comes with SteamOS 3 (code name “holo”), which is in turn based on Arch Linux. Although there is no SteamOS 3 installer for a generic PC (yet), it is very easy to install on a virtual machine using QEMU. This post explains how to do it. The goal of this VM is not to play g
tl;dr: We are looking for feedback on the Temporal proposal. Try out the polyfill, and complete the survey; but don't use it in production yet! JavaScript Date is broken in ways that cannot be fixed without breaking the web. As the story goes, it was included in the original 10-day JavaScript engine hack and based on java.util.Date, which itself was deprecated in 1997 due to being a terrible API a
Since the beginning of the web we have been used to deal with physical CSS properties for different features, for example we all know how to set a margin in an element using margin-left, margin-right, margin-top and/or margin-bottom. But with the appearance of CSS Writing Modes features, the concepts of left, right, top and bottom have somehow lost their meaning. Imagine that you have some right-t
Similar to what I wrote for caret-color in January, this is a blog post about the process to implement a new feature on Chromium/Blink. This time it’s the turn for :focus-within pseudo-class from the Selectors 4 spec, I’ll talk about the different things that happened during the development. :focus-within pseudo-class # This is a new selector that allows to modify the style of an element when this
During the last months as part of my work in Igalia I’ve been focused on finishing the new/missing bits of the CSS Grid Layout Blink’s implementation related to items placement. In summary the task was mostly related to 2 things: Support implicit grid before explicit. So the grid can add tracks on demand not only on the growing direction (usually right/bottom) but also on the opposite one. Fix unk
After the review of the changes in the CSS Grid Layout spec in my previous post, let’s focus now in the status of the implementation in Blink and WebKit. This post will try to cover what we’ve been doing in Igalia during 2014 around grid layout, and it’ll talk about our plans for 2015. Work done in 2014 # Spec syntax # During the first part of the year we were updating the CSS Grid Layout syntax i
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