Bug 186764

Summary:

[Threaded paintingEngine] Fix rendering glitches

Product:

WebKit

Reporter:

Karl Leplat <karl.leplat_ext>

Component:

WPE WebKit

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

bugs-noreply, calvaris, commit-queue, loic.yhuel, magomez, olivier.blin, zan

Priority:

Version:

WebKit Nightly Build

Hardware:

Unspecified

OS:

Unspecified

Attachments:

Description	Flags
Patch	none

Description Karl Leplat 2018-06-18 07:32:20 PDT

By enabling NicosiaPaintingEngineThreaded instead of NicosiaPaintingEngineBasic which is the default implementation,
we have seen that some frames are incomplete causing glitches on the screen.

In fact, we are trying to upload buffers that have not finished processing.

To avoid this problem, we must use the Nicosia::Buffer function waitUntilPaintingComplete() before each
uploading.

Comment 1 Karl Leplat 2018-06-18 07:40:35 PDT

Created attachment 342935 [details]
Patch

Comment 2 WebKit Commit Bot 2018-06-18 08:40:40 PDT

Comment on attachment 342935 [details]
Patch

Clearing flags on attachment: 342935

Committed r232931: <https://trac.webkit.org/changeset/232931>

Comment 3 WebKit Commit Bot 2018-06-18 08:40:41 PDT

All reviewed patches have been landed.  Closing bug.