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<!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>312166</bug_id>
          
          <creation_ts>2026-04-13 10:23:42 -0700</creation_ts>
          <short_desc>[Skia] Add deferred texture binding support for dma-buf backed GPU atlas textures</short_desc>
          <delta_ts>2026-04-22 00:43:10 -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>WPE WebKit</component>
          <version>WebKit Local Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          <blocked>312971</blocked>
          <everconfirmed>1</everconfirmed>
          <reporter name="Nikolas Zimmermann">zimmermann</reporter>
          <assigned_to name="Nikolas Zimmermann">zimmermann</assigned_to>
          <cc>bugs-noreply</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>2199775</commentid>
    <comment_count>0</comment_count>
    <who name="Nikolas Zimmermann">zimmermann</who>
    <bug_when>2026-04-13 10:23:42 -0700</bug_when>
    <thetext>There are glitches with the GPU Atlas support such as https://bugs.webkit.org/show_bug.cgi?id=311103 -- here I&apos;m trying to address the core issue: missing explicit synchronization between GPU / dma-bufs (after writing into pre-allocated dma-bufs, _after_ EGLImage creation). We can defer the EGLImage / GL texture creation instead of having to add another sync mechanism, let&apos;s try that.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2199780</commentid>
    <comment_count>1</comment_count>
    <who name="Nikolas Zimmermann">zimmermann</who>
    <bug_when>2026-04-13 10:29:51 -0700</bug_when>
    <thetext>Pull request: https://github.com/WebKit/WebKit/pull/62644</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2200361</commentid>
    <comment_count>2</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2026-04-14 14:32:37 -0700</bug_when>
    <thetext>Committed 311234@main (57a7b16feca3): &lt;https://commits.webkit.org/311234@main&gt;

Reviewed commits have been landed. Closing PR #62644 and removing active labels.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>2203077</commentid>
    <comment_count>3</comment_count>
    <who name="Nikolas Zimmermann">zimmermann</who>
    <bug_when>2026-04-22 00:43:04 -0700</bug_when>
    <thetext>Will revert in PR  https://github.com/WebKit/WebKit/pull/63307 - caused a performance regression (see ticket for details).</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>