<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>274478</bug_id>
          
          <creation_ts>2024-05-21 12:10:30 -0700</creation_ts>
          <short_desc>REGRESSION(276827@main): Large animated images may not animate all the frames</short_desc>
          <delta_ts>2024-05-21 17:37:20 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Images</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=273457</see_also>
    
    <see_also>https://bugs.webkit.org/show_bug.cgi?id=265363</see_also>
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Said Abou-Hallawa">sabouhallawa</reporter>
          <assigned_to name="Said Abou-Hallawa">sabouhallawa</assigned_to>
          <cc>sabouhallawa</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>2036785</commentid>
    <comment_count>0</comment_count>
    <who name="Said Abou-Hallawa">sabouhallawa</who>
    <bug_when>2024-05-21 12:10:30 -0700</bug_when>
    <thetext>1. Open https://l.engage.covetruspharmacy.com/custloads/1046323924/md_147976.gif

Result: On a slow network, only a few frames of this image will animate.

2. Wait a few seconds
3. Close the window
4. Open the same link again

Result: In the second time all the frames of the image will be animated.

5. Empty the caches (empty the web site data)
6. Close the window
6. Open the same link again

Result: On a slow network, only a few frames of this image will animate.

This is a regression of the BitmapImage refactoring 276827@main. See bug 273457. We used to postpone animating the image till loading the image is complete. The number of frames can only be known for sure when the loading the encoded data is complete. If we start animating before we get all the data, we may end up animating a small set of the image frames.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2036787</commentid>
    <comment_count>1</comment_count>
    <who name="Said Abou-Hallawa">sabouhallawa</who>
    <bug_when>2024-05-21 12:11:10 -0700</bug_when>
    <thetext>rdar://127697287</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2036789</commentid>
    <comment_count>2</comment_count>
    <who name="Said Abou-Hallawa">sabouhallawa</who>
    <bug_when>2024-05-21 12:15:09 -0700</bug_when>
    <thetext>Pull request: https://github.com/WebKit/WebKit/pull/28863</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2036883</commentid>
    <comment_count>3</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2024-05-21 17:37:18 -0700</bug_when>
    <thetext>Committed 279090@main (fab9c4ba90cc): &lt;https://commits.webkit.org/279090@main&gt;

Reviewed commits have been landed. Closing PR #28863 and removing active labels.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>