<?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>261102</bug_id>
          
          <creation_ts>2023-09-04 00:36:43 -0700</creation_ts>
          <short_desc>[TextureMapper] Use linear sampling when blurring for better performance</short_desc>
          <delta_ts>2023-09-06 20:29:16 -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>Platform</component>
          <version>WebKit Nightly 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>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          <dependson>261101</dependson>
          <blocked>231653</blocked>
          <everconfirmed>1</everconfirmed>
          <reporter name="Akihiro Kiuchi">aki.develop8128</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1975335</commentid>
    <comment_count>0</comment_count>
    <who name="Akihiro Kiuchi">aki.develop8128</who>
    <bug_when>2023-09-04 00:36:43 -0700</bug_when>
    <thetext>This is a sub issue of https://bugs.webkit.org/show_bug.cgi?id=231653

Depending issue Bug261101 may add additional passes for better blurring.
To reduce the increasing gpu load, this issue speeds up the blurring process using linear sampling when applying gaussian kernel.

ref: https://www.rastergrid.com/blog/2010/09/efficient-gaussian-blur-with-linear-sampling/</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1975727</commentid>
    <comment_count>1</comment_count>
    <who name="Akihiro Kiuchi">aki.develop8128</who>
    <bug_when>2023-09-05 22:44:45 -0700</bug_when>
    <thetext>Pull request: https://github.com/WebKit/WebKit/pull/17471</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1976034</commentid>
    <comment_count>2</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2023-09-06 20:28:11 -0700</bug_when>
    <thetext>Committed 267715@main (437b5540d082): &lt;https://commits.webkit.org/267715@main&gt;

Reviewed commits have been landed. Closing PR #17471 and removing active labels.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1976036</commentid>
    <comment_count>3</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2023-09-06 20:29:16 -0700</bug_when>
    <thetext>&lt;rdar://problem/115091406&gt;</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>