Closed Bug 1657443 Opened 4 years ago Closed 4 years ago

sw-wr: YouTube video shows multiple frames and other image clipping problems

Categories

(Core :: Graphics: WebRender, defect, P3)

Product:
Core
Component:
Graphics: WebRender
Platform:
Unspecified
Windows
Type:
defect

Tracking

()

Status:
RESOLVED WORKSFORME
Tracking Flags:
Tracking Status
firefox-esr68 --- unaffected
firefox-esr78 --- unaffected
firefox79 --- unaffected
firefox80 --- unaffected
firefox81 --- disabled
firefox82 --- verified

People

(Reporter: cpeterson, Unassigned)

References

(Blocks 1 open bug, Regression)

Details

(Keywords: regression)

Attachments

(3 files)

YouTube_screenshot.jpg
(deleted), image/jpeg
Details
My about:support
(deleted), text/plain
Details
YouTube_screenshot_2020-08-26.jpg.png
(deleted), image/png
Details
Attached image YouTube_screenshot.jpg (deleted) —

Steps to reproduce

  1. Set gfx.webrender.software pref = true.
  2. Load https://www.youtube.com/watch?v=Y9KyBdPeKHg
  3. Play the video.

Actual result

The video shows multiple small frames along the top of the video and then other image clipping problems. See the attached screenshot.

If I reset gfx.webrender.software to false, the problem appears to go away.

I bisected this regression to the following pushlog, which includes to three different WebRender bugs. I assume this regression is caused by bug 1653166 because I'm on Windows and the other two bugs mention macOS.

https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=4ed6ec0c8220321b13c108ffaa7ab6cfc8d7698f&tochange=4558b3cfd6fe49647780a0ec86dfa97f0dd3adcb

Attached file My about:support (deleted) —
Summary: sw-wr: YouTube video shows multiple frames and other image clipping problemsw → sw-wr: YouTube video shows multiple frames and other image clipping problems

Marking as S3 since this isn't enabled yet

Severity: -- → S3
Priority: -- → P3

Is this fixed now? I landed some changes to support scaling properly for SWWR in bug 1657771.

Attached image YouTube_screenshot_2020-08-26.jpg.png (deleted) —

(In reply to Matt Woodrow (:mattwoodrow) from comment #3)

Is this fixed now? I landed some changes to support scaling properly for SWWR in bug 1657771.

No. The video is still broken with SWWR, but in a different way. See this new screenshot.

Closing as WORKSFORME because I can no longer reproduce this bug.

Status: NEW → RESOLVED
Closed: 4 years ago
Resolution: --- → WORKSFORME

Like bug 1659369, I suspect this bug was fixed by SwCompositor bug 1622966.

status-firefox82: disabled → verified
Depends on: 1622966

This bug might still be present in the slow path which kicks in when WR cannot layerize the video.

Has Regression Range: --- → yes
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