Bug 88224 - Freeze behaviour, not correct, depends on begin time ( Looks like Floating Point Problem )
Summary: Freeze behaviour, not correct, depends on begin time ( Looks like Floating Po...
Status: RESOLVED WONTFIX
Alias: None
Product: WebKit
Classification: Unclassified
Component: SVG (show other bugs)
Version: 528+ (Nightly build)
Hardware: PC Windows XP
: P2 Major
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-06-04 04:31 PDT by Raks
Modified: 2023-01-15 04:40 PST (History)
2 users (show)

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Description Raks 2012-06-04 04:31:11 PDT
I wrote a very small animation. All this does is make a circle on and off
I have two such blocks one with a begin time of 0s and another of begin 3.9s. Rest all of the things being same the behaviour is still different in that for the block with begin as 0s the freeze behaviour is correct and as expected whereas for animation with begin 3.9s the fill=freeze behaviour is not correct.

Not only this if I change the second block and make the duration as 0.8 and end as 4.8s, it starts behaving correctly

Pretty strange
I tried this on Google Chrome 17.0.963.46
Attached is the svg I tried with



<?xml version="1.0" encoding="UTF-8"?>
<svg display="inherit" version="1.1" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ev="http://www.w3.org/2001/xml-events">
    <g display="none">
        <animate attributeName="display" begin="0" calcMode="discrete" dur="0.8" fill="freeze" end="0.8" keyTimes="0;0.25;0.75;1.0" values="inherit;none;inherit;none"/>
        <circle cx="215" cy="120" r="20" fill="#ff0000"/>
        <circle cx="715" cy="620" r="20" fill="#00f0f0"/>
    </g>

    <g display="none">
        <animate attributeName="display" begin="3.9" calcMode="discrete" dur="0.8" end="4.7" fill="freeze" keyTimes="0;0.25;0.75;1.0" values="inherit;none;inherit;none"/>
        <circle cx="415" cy="120" r="20" fill="#ff0000"/>
        <circle cx="615" cy="620" r="20" fill="#00f0f0"/>
    </g>
</svg>
Comment 1 Ahmad Saleem 2023-01-15 04:40:33 PST
I took the testcase from Comment 0 and changed it into JSFiddle:

Link - https://jsfiddle.net/omzpd04s/show

It works same in Chrome Canary 111, Firefox Nightly 110, Safari 16.2 and Safari Technology Preview 161. Since all browsers are behaving same, I am marking this as "RESOLVED WONTFIX" (since it was never confirmed as an issue). Please reopen, if it is still reproducible.