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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/194912">194912</a></dd>
<dt>Author</dt> <dd>matthew_hanson@apple.com</dd>
<dt>Date</dt> <dd>2016-01-12 11:31:35 -0800 (Tue, 12 Jan 2016)</dd>
</dl>

<h3>Log Message</h3>
<pre>Merge <a href="http://trac.webkit.org/projects/webkit/changeset/194750">r194750</a>. rdar://problem/24074335</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#branchessafari601146branchSourceWebCoreChangeLog">branches/safari-601.1.46-branch/Source/WebCore/ChangeLog</a></li>
<li><a href="#branchessafari601146branchSourceWebCoreplatformgraphicscocoaIOSurfaceh">branches/safari-601.1.46-branch/Source/WebCore/platform/graphics/cocoa/IOSurface.h</a></li>
<li><a href="#branchessafari601146branchSourceWebCoreplatformgraphicscocoaIOSurfacemm">branches/safari-601.1.46-branch/Source/WebCore/platform/graphics/cocoa/IOSurface.mm</a></li>
<li><a href="#branchessafari601146branchSourceWebKit2ChangeLog">branches/safari-601.1.46-branch/Source/WebKit2/ChangeLog</a></li>
<li><a href="#branchessafari601146branchSourceWebKit2UIProcessAPICocoaWKWebViewmm">branches/safari-601.1.46-branch/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.mm</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="branchessafari601146branchSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/Source/WebCore/ChangeLog (194911 => 194912)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/Source/WebCore/ChangeLog        2016-01-12 19:31:33 UTC (rev 194911)
+++ branches/safari-601.1.46-branch/Source/WebCore/ChangeLog        2016-01-12 19:31:35 UTC (rev 194912)
</span><span class="lines">@@ -1,5 +1,24 @@
</span><span class="cx"> 2016-01-11  Matthew Hanson  &lt;matthew_hanson@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Merge r194750. rdar://problem/24074335
+
+    2016-01-07  Simon Fraser  &lt;simon.fraser@apple.com&gt;
+
+            Use an appropriate buffer format for swipe snapshots
+            https://bugs.webkit.org/show_bug.cgi?id=152880
+            rdar://problem/23728299
+
+            Reviewed by Tim Horton.
+
+            Choose an appropriate buffer format for swipe snapshots, and avoid converting
+            them to YUV422.
+
+            * platform/graphics/cocoa/IOSurface.h:
+            * platform/graphics/cocoa/IOSurface.mm:
+            (IOSurface::allowConversionFromFormatToFormat):
+
+2016-01-11  Matthew Hanson  &lt;matthew_hanson@apple.com&gt;
+
</ins><span class="cx">         Merge r194667. rdar://problem/24074334
</span><span class="cx"> 
</span><span class="cx">     2016-01-06  Simon Fraser  &lt;simon.fraser@apple.com&gt;
</span></span></pre></div>
<a id="branchessafari601146branchSourceWebCoreplatformgraphicscocoaIOSurfaceh"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/Source/WebCore/platform/graphics/cocoa/IOSurface.h (194911 => 194912)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/Source/WebCore/platform/graphics/cocoa/IOSurface.h        2016-01-12 19:31:33 UTC (rev 194911)
+++ branches/safari-601.1.46-branch/Source/WebCore/platform/graphics/cocoa/IOSurface.h        2016-01-12 19:31:35 UTC (rev 194912)
</span><span class="lines">@@ -92,6 +92,7 @@
</span><span class="cx"> 
</span><span class="cx"> #if PLATFORM(IOS)
</span><span class="cx">     WEBCORE_EXPORT void copyToSurface(IOSurface&amp;);
</span><ins>+    WEBCORE_EXPORT static bool allowConversionFromFormatToFormat(Format, Format);
</ins><span class="cx">     WEBCORE_EXPORT static void convertToFormat(std::unique_ptr&lt;WebCore::IOSurface&gt;&amp;&amp; inSurface, Format, std::function&lt;void(std::unique_ptr&lt;WebCore::IOSurface&gt;)&gt;);
</span><span class="cx"> #endif
</span><span class="cx"> 
</span></span></pre></div>
<a id="branchessafari601146branchSourceWebCoreplatformgraphicscocoaIOSurfacemm"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/Source/WebCore/platform/graphics/cocoa/IOSurface.mm (194911 => 194912)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/Source/WebCore/platform/graphics/cocoa/IOSurface.mm        2016-01-12 19:31:33 UTC (rev 194911)
+++ branches/safari-601.1.46-branch/Source/WebCore/platform/graphics/cocoa/IOSurface.mm        2016-01-12 19:31:35 UTC (rev 194912)
</span><span class="lines">@@ -378,6 +378,14 @@
</span><span class="cx">         WTFLogAlways(&quot;IOSurfaceAcceleratorTransformSurface %p to %p failed with error %d&quot;, m_surface.get(), destSurface.surface(), ret);
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+bool IOSurface::allowConversionFromFormatToFormat(Format sourceFormat, Format destFormat)
+{
+    if ((sourceFormat == Format::RGB10 || sourceFormat == Format::RGB10A8) &amp;&amp; destFormat == Format::YUV422)
+        return false;
+
+    return true;
+}
+
</ins><span class="cx"> void IOSurface::convertToFormat(std::unique_ptr&lt;WebCore::IOSurface&gt;&amp;&amp; inSurface, Format format, std::function&lt;void(std::unique_ptr&lt;WebCore::IOSurface&gt;)&gt; callback)
</span><span class="cx"> {
</span><span class="cx">     static IOSurfaceAcceleratorRef accelerator;
</span></span></pre></div>
<a id="branchessafari601146branchSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/Source/WebKit2/ChangeLog (194911 => 194912)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/Source/WebKit2/ChangeLog        2016-01-12 19:31:33 UTC (rev 194911)
+++ branches/safari-601.1.46-branch/Source/WebKit2/ChangeLog        2016-01-12 19:31:35 UTC (rev 194912)
</span><span class="lines">@@ -1,5 +1,24 @@
</span><span class="cx"> 2016-01-11  Matthew Hanson  &lt;matthew_hanson@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Merge r194750. rdar://problem/24074335
+
+    2016-01-07  Simon Fraser  &lt;simon.fraser@apple.com&gt;
+
+            Use an appropriate buffer format for swipe snapshots
+            https://bugs.webkit.org/show_bug.cgi?id=152880
+            rdar://problem/23728299
+
+            Reviewed by Tim Horton.
+
+            Choose an appropriate buffer format for swipe snapshots, and avoid converting
+            them to YUV422.
+
+            * UIProcess/API/Cocoa/WKWebView.mm:
+            (WebKit::bufferFormat):
+            (-[WKWebView _takeViewSnapshot]):
+
+2016-01-11  Matthew Hanson  &lt;matthew_hanson@apple.com&gt;
+
</ins><span class="cx">         Merge r194667. rdar://problem/24074334
</span><span class="cx"> 
</span><span class="cx">     2016-01-06  Simon Fraser  &lt;simon.fraser@apple.com&gt;
</span></span></pre></div>
<a id="branchessafari601146branchSourceWebKit2UIProcessAPICocoaWKWebViewmm"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.mm (194911 => 194912)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.mm        2016-01-12 19:31:33 UTC (rev 194911)
+++ branches/safari-601.1.46-branch/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.mm        2016-01-12 19:31:35 UTC (rev 194912)
</span><span class="lines">@@ -133,8 +133,25 @@
</span><span class="cx">     ResizingWithDocumentHidden,
</span><span class="cx"> };
</span><span class="cx"> 
</span><ins>+#if __has_include(&lt;WebKitAdditions/RemoteLayerBackingStoreAdditions.mm&gt;)
+#import &lt;WebKitAdditions/RemoteLayerBackingStoreAdditions.mm&gt;
+#else
+
+namespace WebKit {
+
+#if USE(IOSURFACE)
+static WebCore::IOSurface::Format bufferFormat(bool)
+{
+    return WebCore::IOSurface::Format::RGBA;
+}
+#endif // USE(IOSURFACE)
+
+} // namespace WebKit
+
</ins><span class="cx"> #endif
</span><span class="cx"> 
</span><ins>+#endif // PLATFORM(IOS)
+
</ins><span class="cx"> #if PLATFORM(MAC)
</span><span class="cx"> #import &quot;WKViewInternal.h&quot;
</span><span class="cx"> #import &lt;WebCore/ColorMac.h&gt;
</span><span class="lines">@@ -1136,9 +1153,20 @@
</span><span class="cx">     CATransform3D transform = CATransform3DMakeScale(deviceScale, deviceScale, 1);
</span><span class="cx"> 
</span><span class="cx"> #if USE(IOSURFACE)
</span><del>-    auto surface = WebCore::IOSurface::create(WebCore::expandedIntSize(snapshotSize), WebCore::ColorSpaceSRGB);
</del><ins>+    WebCore::IOSurface::Format snapshotFormat = WebKit::bufferFormat(true /* is opaque */);
+    auto surface = WebCore::IOSurface::create(WebCore::expandedIntSize(snapshotSize), WebCore::ColorSpaceSRGB, snapshotFormat);
</ins><span class="cx">     CARenderServerRenderLayerWithTransform(MACH_PORT_NULL, self.layer.context.contextId, reinterpret_cast&lt;uint64_t&gt;(self.layer), surface-&gt;surface(), 0, 0, &amp;transform);
</span><span class="cx"> 
</span><ins>+    WebCore::IOSurface::Format compressedFormat = WebCore::IOSurface::Format::YUV422;
+    if (WebCore::IOSurface::allowConversionFromFormatToFormat(snapshotFormat, compressedFormat)) {
+        RefPtr&lt;WebKit::ViewSnapshot&gt; viewSnapshot = WebKit::ViewSnapshot::create(nullptr);
+        WebCore::IOSurface::convertToFormat(WTF::move(surface), WebCore::IOSurface::Format::YUV422, [viewSnapshot](std::unique_ptr&lt;WebCore::IOSurface&gt; convertedSurface) {
+            viewSnapshot-&gt;setSurface(WTF::move(convertedSurface));
+        });
+
+        return viewSnapshot;
+    }
+
</ins><span class="cx">     return WebKit::ViewSnapshot::create(WTF::move(surface));
</span><span class="cx"> #else
</span><span class="cx">     uint32_t slotID = [WebKit::ViewSnapshotStore::snapshottingContext() createImageSlot:snapshotSize hasAlpha:YES];
</span></span></pre>
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