1697637 - sw-wr: TEST-UNEXPECTED-FAIL | org.mozilla.geckoview.test.ScreenshotTest.screenshotQuartersScaled | java.lang.AssertionError: Images are almost identical

Status: RESOLVED DUPLICATE of bug 1697567

(Core :: Graphics: WebRender, defect)

Description

[Chris Peterson [:cpeterson]]

In bug 1697195, we tried to auto-enable SW-WR with Fission is enabled. Unfortunately, some tests failed when run with Fission + SW-WR mode:

gv failures:

https://treeherder.mozilla.org/logviewer?job_id=332579476&repo=autoland&lineNumber=10414

TEST-UNEXPECTED-FAIL | org.mozilla.geckoview.test.ScreenshotTest.screenshotQuartersScaled | java.lang.AssertionError: Images are almost identical

From here:

https://searchfox.org/mozilla-central/rev/ca910762568921c0faa34838d6a4efac2471dff1/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/ScreenshotTest.kt#88-89

Comment 1

[Jamie Nicol [:jnicol]]

I think this will be fixed by bug 1697567

Comment 2

[Sotaro Ikeda [:sotaro]]

On current m-c on Android, WebRender (Software) is used instead of WebRender (Software OpenGL). Bug 1697567 is for WebRender (Software OpenGL). WebRender (Software OpenGL) needs to be enabled by default on Android.

Bug 1697715 is going to change a default pref..

Comment 3

[Lee Salzman [:lsalzman]]

Jamie, can we verify if this was fixed by bug 1697567 now that it landed?

Comment 4

[Jamie Nicol [:jnicol]]

Yep, I can reproduce the failure locally if I revert the patch (and Android Studio shows the image is flipped vertically). And with the patch it succeeds.

Comment 5

[Intermittent Failures Robot]

1 failures in 4257 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform and build breakdown:

• android-em-7-0-x86_64-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1697637&startday=2021-03-15&endday=2021-03-21&tree=all