Bug 116826

Summary: [Texmap] Fix flickering CSS animations.
Product: WebKit Reporter: Zoltan Herczeg <zherczeg>
Component: PlatformAssignee: Nobody <webkit-unassigned>
Status: RESOLVED WONTFIX    
Severity: Normal CC: cmarcelo, commit-queue, Hironori.Fujii, luiz, noam
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
patch
none
draft patch none

Description Zoltan Herczeg 2013-05-27 06:56:08 PDT 
Proposing a fix to the flickering CSS animations, by displaying the last frame until the WebProcess sends other commands to update it. My approach is different from the behavior before (shown the unfiltered layer data), and the current one as well (shows the last update sent by WebCore),
Comment 1 Zoltan Herczeg 2013-05-27 07:03:52 PDT 
Created attachment 202981 [details]
patch
Comment 2 Noam Rosenthal 2013-05-27 07:07:06 PDT 
Comment on attachment 202981 [details]
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=202981&action=review

> Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:251
> +    m_state.filters = filters;

How come this is specific to filters and doesn't occur for transform/opacity?
Comment 3 Zoltan Herczeg 2013-05-28 06:34:28 PDT 
Created attachment 203046 [details]
draft patch

I tried to add a mechanism to disable animation fallbacks when the WebProcess generates an update. The mechanism seems working, but there is still flickering. Am I did something wrong?
Comment 4 Fujii Hironori 2022-06-21 20:47:02 PDT 
185569@main removed multiprocess coordinated graphcis. Closed old ticket.