1924152 - Add support for rendering only the picture snapshots without presenting the frame to the window

Status: RESOLVED FIXED

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

Comment 1

[Nicolas Silva [:nical]]

Attachment: Bug 1924152 - Add support for dettached stacking contexts. r=#gfx-reviewers

A dettached stacking context is cached into a snapshot image but not drawn into the frame.

Depends on D231909

Comment 2

[Phabricator Automation]

Comment on attachment 9443158 [details]
Bug 1924152 - Add support for dettached stacking contexts. r=#gfx-reviewers

Revision D231914 was moved to bug 1924130. Setting attachment 9443158 [details] to obsolete.

Comment 3

[Nicolas Silva [:nical]]

Attachment: Bug 1924152 - Support rendering without presenting. r=gw

The goal for this initial implementation is to be able to render picture snapshots without presenting the frame, but it could be extended to supporting some picture cache slices without presenting (for example if we know that the picture is not affected by scrolling or animated properties and want to start rendering it early).

Comment 4

[Nicolas Silva [:nical]]

Attachment: Bug 1924152 - Add multi-frame reftests to wrench. r=gw

Also add a test to exercise the feature as well as the new render-without-present mode in WebRender.

Depends on D234162

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/cedb2697277d
Support rendering without presenting. r=gw
https://hg.mozilla.org/integration/autoland/rev/03b773761f5d
Add multi-frame reftests to wrench. r=gw

Comment 6

[Atila Butkovits]

Backed out for causing WR bustages.

Backout link: https://hg.mozilla.org/integration/autoland/rev/89c1825a29bcfe5157d543b6425849a8627a6873

Push with failures: https://treeherder.mozilla.org/jobs?repo=autoland&resultStatus=testfailed%2Cbusted%2Cexception%2Cretry%2Cusercancel&revision=03b773761f5d40ee501204a1d596c5dde90cb6f7

Failure log:
https://treeherder.mozilla.org/logviewer?job_id=490199534&repo=autoland&lineNumber=48237

Comment 7

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/656bdcc5d6b0
Support rendering without presenting. r=gw
https://hg.mozilla.org/integration/autoland/rev/48aaa9a98d33
Add multi-frame reftests to wrench. r=gw

Comment 8

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/656bdcc5d6b0
https://hg.mozilla.org/mozilla-central/rev/48aaa9a98d33