WebRender newsletter 24

Hi there, this your twenty fourth WebRender newsletter. A lot of work in progress this week, so the change list is pretty short. To compensate I added a list of noteworthy ongoing work which hasn’t landed yet is but will probably land soon and gives a rough idea of what’s keeping us busy.

Without further ado,

Notable WebRender and Gecko changes

• Bobby improved WebRender’s code documentation.
• Jeff fixed a crash.
• Kats fixed a bug that was causing issues with parallax scrolling type of effects.
• Kats improved the CI infrastructure for WebRender.
• Gankro cleaned up some of the blob image rendering code.
• Andrew improved the memory recycling logic for shared images.
• Glenn fixed a crash.
• Glenn fixed a bug causing content to leak out of the their iframes.
• Glenn improved the performance of building clip chains.
• Glenn made progress ( 1 , 2 towards an upcoming picture caching infrastructure.
• Nical fixed various source of UI freezes.
• Nical fixed a crash with large shadow radii.
• Sotaro fixed an issue related to moving tabs between windows.
• Sotaro removed a synchronous operation that sometimes blocked the compositor for a long time.

Ongoing work

• Bobby is working on reducing WebRender’s memory usage.
• Kvark is working on taming the infamous backface-visibility property.
• Matt and Dan are almost done with big startup time improvements related to the time we spent compiling shaders.
• Gankro and Jeff are working on blob image rasterization performance.
• Andrew has some more shared image recycling changes in the work.
• Sotaro is reducing the amount of extra work we do for some types of async animations.
• Chris is fixing some rendering correctness bugs.
• Glenn is working on the picture caching infrastructure (this one is a bit longer term than the rest of this list but we expect it will bring a lot of improvements on some difficult cases).