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    <body><span class="vcard"><a class="email" href="mailto:thorton&#64;apple.com" title="Tim Horton &lt;thorton&#64;apple.com&gt;"> <span class="fn">Tim Horton</span></a>
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              <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [Cocoa] Support wide gamut for Drag Image UI"
   href="https://bugs.webkit.org/show_bug.cgi?id=164490">bug 164490</a>
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            <th>What</th>
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            <th>Added</th>
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           <td style="text-align:right;">Attachment #294446 Flags</td>
           <td>review?, commit-queue?
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           <td>review+, commit-queue+
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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [Cocoa] Support wide gamut for Drag Image UI"
   href="https://bugs.webkit.org/show_bug.cgi?id=164490#c9">Comment # 9</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [Cocoa] Support wide gamut for Drag Image UI"
   href="https://bugs.webkit.org/show_bug.cgi?id=164490">bug 164490</a>
              from <span class="vcard"><a class="email" href="mailto:thorton&#64;apple.com" title="Tim Horton &lt;thorton&#64;apple.com&gt;"> <span class="fn">Tim Horton</span></a>
</span></b>
        <pre>Comment on <span class=""><a href="attachment.cgi?id=294446&amp;action=diff" name="attach_294446" title="Patch">attachment 294446</a> <a href="attachment.cgi?id=294446&amp;action=edit" title="Patch">[details]</a></span>
Patch

View in context: <a href="https://bugs.webkit.org/attachment.cgi?id=294446&amp;action=review">https://bugs.webkit.org/attachment.cgi?id=294446&amp;action=review</a>

<span class="quote">&gt; Source/WebCore/ChangeLog:8
&gt; +        Fixed an error in the support define for wide gamut on Mac.</span >

Maybe &quot;use extended sRGB on macOS Sierra&quot;? Or some such.

<span class="quote">&gt; Source/WebKit2/ChangeLog:8
&gt; +        Fixed an error in the gating for the new wide gamut support in ShareableBitmap.</span >

?

<span class="quote">&gt; Source/WebKit2/ChangeLog:9
&gt; +        We should always respect the flags straight out, and not make decisions later, it can lead to mismatched data and data storage.</span >

Maybe &quot;Always respect the stored extended color flag instead of re-computing whether a buffer should use extended color.&quot; or something?

<span class="quote">&gt; Source/WebKit2/WebProcess/WebCoreSupport/mac/WebDragClientMac.mm:59
&gt; +    if (screenSupportsExtendedColor(frame.mainFrame().view()))</span >

is screenSupportsExtendedColor actually *any*ScreenSupportsExtendedColor? Otherwise, what if you drag from a sRGB to P3 display?</pre>
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