1405469 - WebRender: Downscaled /r/firefox header image looks really bad.

Status: RESOLVED FIXED

(Core :: Graphics: WebRender, defect, P1)

Description

[Kacper Michajłow [:kasper93]]

Attachment: r_firefox_webrender_on.png

Hi, 

I have enabled WebRender following this blog post https://mozillagfx.wordpress.com/2017/09/25/webrender-newsletter-5/

Fonts generally look different (worse), but I'm most concerned about the /r/firefox header, which looks very bad. Is this expected, am I missing something? Please see the attached files. 

Regards,
Kacper

Comment 1

[Kacper Michajłow [:kasper93]]

Attachment: r_firefox_webrender_off.png

Comment 2

[Kacper Michajłow [:kasper93]]

Attachment: about_support_raw.json

Comment 3

[Kacper Michajłow [:kasper93]]

Sorry, this is not text, this is transparent image, which was significantly downscaled (original image is 3242x833 px). With WebRender enabled it looks like NN while with it disabled it looks like Bilinear which does way better job here.

Anyway my original thought about fonts still stand, text looks generally little worse and harder to read, but this is probably for another discussion ;>

Comment 4

[Markus Stange [:mstange]]

I filed https://github.com/servo/webrender/issues/2023 in WebRender about this.

Comment 5

[Glenn Watson [:gw]]

This will be fixed when https://github.com/servo/webrender/pull/2408 lands in Gecko via a WR update.

Comment 6

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

This being fixed with a PR - is there a Gecko side reftest that we can add that catches this problem?