1453797 - Carousel images have jagged edges when scrolling through

Status: NEW

(Core :: Graphics, defect, P3)

Description

[Adam Stevenson [:adamopenweb]]

Attachment: Issue on FF Windows

Originally reported: https://webcompat.com/issues/10422

Reproducible in Firefox 59-61 for Windows 10.

Steps to reproduce:
1. Navigate to https://www.android.com/
2. Scroll down to the section "Come on, get appy"
3. Scroll through some of the apps

Expected behavior:
Edges on images are smooth

Actual behavior:
Edges on images are jagged

- Doesn't reproduce in MacOS or Linux 
- Screenshots taken with screenshot tool do not exhibit the issue
- Enabling webrender did not change the result 

layout.css.servo.enabled: true

Comment 1

[Milan Sreckovic [:milan] (needinfo for best results)]

This looks correct for me on the first draw, but once we start using the carousel, it loses AA until we do the tab switch. We think this is active layers not getting AA on transformed layers.

This has been around for a long time, but I will clone a WebRender bug where we never see AA.

Comment 2

[Firefox Bug Husbandry Bot]

Migrating Webcompat whiteboard priorities to project flags. See bug 1547409.

Comment 3

[Firefox Bug Husbandry Bot]

See bug 1547409. Migrating whiteboard priority tags to program flags.