<?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>232555</bug_id>
          
          <creation_ts>2021-10-31 22:34:13 -0700</creation_ts>
          <short_desc>[WinCairo] Enable gpu_process_canvas_rendering and gpu_process_webgl by default</short_desc>
          <delta_ts>2021-11-01 15:09:20 -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>WebKit2</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>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Fujii Hironori">fujii</reporter>
          <assigned_to name="Fujii Hironori">fujii</assigned_to>
          <cc>don.olmstead</cc>
    
    <cc>kkinnunen</cc>
    
    <cc>ross.kirsling</cc>
    
    <cc>simon.fraser</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1810555</commentid>
    <comment_count>0</comment_count>
    <who name="Fujii Hironori">fujii</who>
    <bug_when>2021-10-31 22:34:13 -0700</bug_when>
    <thetext>[WinCairo] Enable gpu_process_canvas_rendering and gpu_process_webgl by default</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1810557</commentid>
    <comment_count>1</comment_count>
      <attachid>442959</attachid>
    <who name="Fujii Hironori">fujii</who>
    <bug_when>2021-10-31 22:38:37 -0700</bug_when>
    <thetext>Created attachment 442959
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1810767</commentid>
    <comment_count>2</comment_count>
      <attachid>442959</attachid>
    <who name="Don Olmstead">don.olmstead</who>
    <bug_when>2021-11-01 12:36:56 -0700</bug_when>
    <thetext>Comment on attachment 442959
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=442959&amp;action=review

Think there&apos;s a better way to address this.

As an aside it would be nice to be able to set these registry values through the MiniBrowser.

&gt; Source/WebKit/Shared/WebPreferencesDefaultValues.cpp:164
&gt; -#if ENABLE(GPU_PROCESS_BY_DEFAULT)
&gt; +#if ENABLE(GPU_PROCESS_BY_DEFAULT) || PLATFORM(WIN)

Can&apos;t we just add `ENABLE_GPU_PROCESS_BY_DEFAULT` in the CMake code?

&gt; Source/WebKit/Shared/WebPreferencesDefaultValues.cpp:196
&gt; -    return isFeatureFlagEnabled(&quot;gpu_process_webgl&quot;, false);
&gt; +#if PLATFORM(WIN)
&gt; +    bool defaultValue = true;
&gt; +#else
&gt; +    bool defaultValue = false;
&gt; +#endif
&gt; +    return isFeatureFlagEnabled(&quot;gpu_process_webgl&quot;, defaultValue);

Couldn&apos;t this be written in terms of `ENABLE(GPU_PROCESS_BY_DEFAULT)`?

Maybe need to ask the Apple folks if this is ok.

&gt; Source/WebKit/Shared/win/WebPreferencesDefaultValuesWin.cpp:46
&gt; -        return false;
&gt; +        return defaultValue;
&gt;      if (keyType != REG_DWORD)
&gt; -        return false;
&gt; +        return defaultValue;
&gt;      if (dataSize != sizeof data)
&gt; -        return false;
&gt; +        return defaultValue;

Whoops! This is a good catch here.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1810828</commentid>
    <comment_count>3</comment_count>
      <attachid>442959</attachid>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2021-11-01 12:56:40 -0700</bug_when>
    <thetext>Comment on attachment 442959
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=442959&amp;action=review

&gt;&gt; Source/WebKit/Shared/WebPreferencesDefaultValues.cpp:196
&gt;&gt; +    return isFeatureFlagEnabled(&quot;gpu_process_webgl&quot;, defaultValue);
&gt; 
&gt; Couldn&apos;t this be written in terms of `ENABLE(GPU_PROCESS_BY_DEFAULT)`?
&gt; 
&gt; Maybe need to ask the Apple folks if this is ok.

I don&apos;t think we want the default to be true if ENABLE(GPU_PROCESS_BY_DEFAULT) is defined. We switch WebGL independently from the other GPU Process things.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1810831</commentid>
    <comment_count>4</comment_count>
      <attachid>442959</attachid>
    <who name="Don Olmstead">don.olmstead</who>
    <bug_when>2021-11-01 13:07:10 -0700</bug_when>
    <thetext>Comment on attachment 442959
Patch

After getting more info on what Apple is up to with that ENABLE_GPU_PROCESS_BY_DEFAULT I agree that wee should just use PLATFORM(WIN) here. Changing my review</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1810840</commentid>
    <comment_count>5</comment_count>
    <who name="EWS">ews-feeder</who>
    <bug_when>2021-11-01 13:32:58 -0700</bug_when>
    <thetext>Committed r285127 (243766@main): &lt;https://commits.webkit.org/243766@main&gt;

All reviewed patches have been landed. Closing bug and clearing flags on attachment 442959.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1810842</commentid>
    <comment_count>6</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2021-11-01 13:33:37 -0700</bug_when>
    <thetext>&lt;rdar://problem/84896922&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1810845</commentid>
    <comment_count>7</comment_count>
    <who name="Fujii Hironori">fujii</who>
    <bug_when>2021-11-01 13:35:48 -0700</bug_when>
    <thetext>Thank you for the review.

(In reply to Don Olmstead from comment #2)
&gt; As an aside it would be nice to be able to set these registry values through
&gt; the MiniBrowser.

I&apos;d like to remove WinCairo WK2 non-GPU process mode support.
WinCairo supports WK1 that supports only non-GPU process mode.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1810902</commentid>
    <comment_count>8</comment_count>
    <who name="Don Olmstead">don.olmstead</who>
    <bug_when>2021-11-01 15:09:20 -0700</bug_when>
    <thetext>(In reply to Fujii Hironori from comment #7)
&gt; Thank you for the review.
&gt; 
&gt; (In reply to Don Olmstead from comment #2)
&gt; &gt; As an aside it would be nice to be able to set these registry values through
&gt; &gt; the MiniBrowser.
&gt; 
&gt; I&apos;d like to remove WinCairo WK2 non-GPU process mode support.
&gt; WinCairo supports WK1 that supports only non-GPU process mode.

Agreed to removing non-GPU Process mode support.

The comment was not just about GPU Process feature flags it was about not having a good way to set any feature flags in MiniBrowser.</thetext>
  </long_desc>
      
          <attachment
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            <attachid>442959</attachid>
            <date>2021-10-31 22:38:37 -0700</date>
            <delta_ts>2021-11-01 13:32:59 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-232555-20211101143836.patch</filename>
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            <attacher name="Fujii Hironori">fujii</attacher>
            
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