<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>[195368] branches/safari-601.1.46-branch</title>
</head>
<body>
<style type="text/css"><!--
#msg dl.meta { border: 1px #006 solid; background: #369; padding: 6px; color: #fff; }
#msg dl.meta dt { float: left; width: 6em; font-weight: bold; }
#msg dt:after { content:':';}
#msg dl, #msg dt, #msg ul, #msg li, #header, #footer, #logmsg { font-family: verdana,arial,helvetica,sans-serif; font-size: 10pt; }
#msg dl a { font-weight: bold}
#msg dl a:link { color:#fc3; }
#msg dl a:active { color:#ff0; }
#msg dl a:visited { color:#cc6; }
h3 { font-family: verdana,arial,helvetica,sans-serif; font-size: 10pt; font-weight: bold; }
#msg pre { overflow: auto; background: #ffc; border: 1px #fa0 solid; padding: 6px; }
#logmsg { background: #ffc; border: 1px #fa0 solid; padding: 1em 1em 0 1em; }
#logmsg p, #logmsg pre, #logmsg blockquote { margin: 0 0 1em 0; }
#logmsg p, #logmsg li, #logmsg dt, #logmsg dd { line-height: 14pt; }
#logmsg h1, #logmsg h2, #logmsg h3, #logmsg h4, #logmsg h5, #logmsg h6 { margin: .5em 0; }
#logmsg h1:first-child, #logmsg h2:first-child, #logmsg h3:first-child, #logmsg h4:first-child, #logmsg h5:first-child, #logmsg h6:first-child { margin-top: 0; }
#logmsg ul, #logmsg ol { padding: 0; list-style-position: inside; margin: 0 0 0 1em; }
#logmsg ul { text-indent: -1em; padding-left: 1em; }#logmsg ol { text-indent: -1.5em; padding-left: 1.5em; }
#logmsg > ul, #logmsg > ol { margin: 0 0 1em 0; }
#logmsg pre { background: #eee; padding: 1em; }
#logmsg blockquote { border: 1px solid #fa0; border-left-width: 10px; padding: 1em 1em 0 1em; background: white;}
#logmsg dl { margin: 0; }
#logmsg dt { font-weight: bold; }
#logmsg dd { margin: 0; padding: 0 0 0.5em 0; }
#logmsg dd:before { content:'\00bb';}
#logmsg table { border-spacing: 0px; border-collapse: collapse; border-top: 4px solid #fa0; border-bottom: 1px solid #fa0; background: #fff; }
#logmsg table th { text-align: left; font-weight: normal; padding: 0.2em 0.5em; border-top: 1px dotted #fa0; }
#logmsg table td { text-align: right; border-top: 1px dotted #fa0; padding: 0.2em 0.5em; }
#logmsg table thead th { text-align: center; border-bottom: 1px solid #fa0; }
#logmsg table th.Corner { text-align: left; }
#logmsg hr { border: none 0; border-top: 2px dashed #fa0; height: 1px; }
#header, #footer { color: #fff; background: #636; border: 1px #300 solid; padding: 6px; }
#patch { width: 100%; }
#patch h4 {font-family: verdana,arial,helvetica,sans-serif;font-size:10pt;padding:8px;background:#369;color:#fff;margin:0;}
#patch .propset h4, #patch .binary h4 {margin:0;}
#patch pre {padding:0;line-height:1.2em;margin:0;}
#patch .diff {width:100%;background:#eee;padding: 0 0 10px 0;overflow:auto;}
#patch .propset .diff, #patch .binary .diff {padding:10px 0;}
#patch span {display:block;padding:0 10px;}
#patch .modfile, #patch .addfile, #patch .delfile, #patch .propset, #patch .binary, #patch .copfile {border:1px solid #ccc;margin:10px 0;}
#patch ins {background:#dfd;text-decoration:none;display:block;padding:0 10px;}
#patch del {background:#fdd;text-decoration:none;display:block;padding:0 10px;}
#patch .lines, .info {color:#888;background:#fff;}
--></style>
<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/195368">195368</a></dd>
<dt>Author</dt> <dd>matthew_hanson@apple.com</dd>
<dt>Date</dt> <dd>2016-01-20 12:59:38 -0800 (Wed, 20 Jan 2016)</dd>
</dl>
<h3>Log Message</h3>
<pre>Merge <a href="http://trac.webkit.org/projects/webkit/changeset/188263">r188263</a>. rdar://problem/24208161</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#branchessafari601146branchLayoutTestsChangeLog">branches/safari-601.1.46-branch/LayoutTests/ChangeLog</a></li>
<li><a href="#branchessafari601146branchLayoutTestsplatformeflTestExpectations">branches/safari-601.1.46-branch/LayoutTests/platform/efl/TestExpectations</a></li>
<li><a href="#branchessafari601146branchLayoutTestsplatformgtkTestExpectations">branches/safari-601.1.46-branch/LayoutTests/platform/gtk/TestExpectations</a></li>
<li><a href="#branchessafari601146branchLayoutTestsplatformwinTestExpectations">branches/safari-601.1.46-branch/LayoutTests/platform/win/TestExpectations</a></li>
<li><a href="#branchessafari601146branchSourceWebCoreChangeLog">branches/safari-601.1.46-branch/Source/WebCore/ChangeLog</a></li>
<li><a href="#branchessafari601146branchSourceWebCoreplatformgraphicsmacGlyphPageMaccpp">branches/safari-601.1.46-branch/Source/WebCore/platform/graphics/mac/GlyphPageMac.cpp</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="branchessafari601146branchLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/LayoutTests/ChangeLog (195367 => 195368)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/LayoutTests/ChangeLog 2016-01-20 20:59:37 UTC (rev 195367)
+++ branches/safari-601.1.46-branch/LayoutTests/ChangeLog 2016-01-20 20:59:38 UTC (rev 195368)
</span><span class="lines">@@ -1,3 +1,22 @@
</span><ins>+2016-01-19 Matthew Hanson <matthew_hanson@apple.com>
+
+ Merge r188263. rdar://problem/24208161
+
+ 2015-08-11 Myles C. Maxfield <mmaxfield@apple.com>
+
+ [iOS] Arabic letter Yeh is drawn in LastResort
+ https://bugs.webkit.org/show_bug.cgi?id=147862
+ <rdar://problem/22202935>
+
+ Reviewed by Darin Adler.
+
+ * fast/text/arabic-glyph-cache-fill-combine-expected.html: Added.
+ * fast/text/arabic-glyph-cache-fill-combine.html: Added.
+ * platform/mac/TestExpectations: Mark test as iOS-specific
+ * platform/gtk/TestExpectations: Mark test as iOS-specific
+ * platform/efl/TestExpectations: Mark test as iOS-specific
+ * platform/efl/TestExpectations: Mark test as iOS-specific
+
</ins><span class="cx"> 2016-01-15 Babak Shafiei <bshafiei@apple.com>
</span><span class="cx">
</span><span class="cx"> Merge r195130.
</span></span></pre></div>
<a id="branchessafari601146branchLayoutTestsplatformeflTestExpectations"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/LayoutTests/platform/efl/TestExpectations (195367 => 195368)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/LayoutTests/platform/efl/TestExpectations 2016-01-20 20:59:37 UTC (rev 195367)
+++ branches/safari-601.1.46-branch/LayoutTests/platform/efl/TestExpectations 2016-01-20 20:59:38 UTC (rev 195368)
</span><span class="lines">@@ -2304,3 +2304,6 @@
</span><span class="cx">
</span><span class="cx"> # This test uses an MPEG-4 video
</span><span class="cx"> media/video-seek-to-current-time.html [ Skip ]
</span><ins>+
+# This test relies on iOS-specific font fallback.
+fast/text/arabic-glyph-cache-fill-combine.html [ ImageOnlyFailure ]
</ins></span></pre></div>
<a id="branchessafari601146branchLayoutTestsplatformgtkTestExpectations"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/LayoutTests/platform/gtk/TestExpectations (195367 => 195368)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/LayoutTests/platform/gtk/TestExpectations 2016-01-20 20:59:37 UTC (rev 195367)
+++ branches/safari-601.1.46-branch/LayoutTests/platform/gtk/TestExpectations 2016-01-20 20:59:38 UTC (rev 195368)
</span><span class="lines">@@ -2406,3 +2406,6 @@
</span><span class="cx">
</span><span class="cx"> # This test uses an MPEG-4 video
</span><span class="cx"> media/video-seek-to-current-time.html [ Skip ]
</span><ins>+
+# This test relies on iOS-specific font fallback.
+fast/text/arabic-glyph-cache-fill-combine.html [ ImageOnlyFailure ]
</ins></span></pre></div>
<a id="branchessafari601146branchLayoutTestsplatformwinTestExpectations"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/LayoutTests/platform/win/TestExpectations (195367 => 195368)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/LayoutTests/platform/win/TestExpectations 2016-01-20 20:59:37 UTC (rev 195367)
+++ branches/safari-601.1.46-branch/LayoutTests/platform/win/TestExpectations 2016-01-20 20:59:38 UTC (rev 195368)
</span><span class="lines">@@ -3146,3 +3146,6 @@
</span><span class="cx"> media/video-seek-to-current-time.html [ Skip ]
</span><span class="cx">
</span><span class="cx"> webkit.org/b/151949 streams/reference-implementation/pipe-to.html [ Failure ]
</span><ins>+
+# This test relies on iOS-specific font fallback.
+fast/text/arabic-glyph-cache-fill-combine.html [ ImageOnlyFailure ]
</ins></span></pre></div>
<a id="branchessafari601146branchSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/Source/WebCore/ChangeLog (195367 => 195368)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/Source/WebCore/ChangeLog 2016-01-20 20:59:37 UTC (rev 195367)
+++ branches/safari-601.1.46-branch/Source/WebCore/ChangeLog 2016-01-20 20:59:38 UTC (rev 195368)
</span><span class="lines">@@ -1,5 +1,46 @@
</span><span class="cx"> 2016-01-19 Matthew Hanson <matthew_hanson@apple.com>
</span><span class="cx">
</span><ins>+ Merge r188263. rdar://problem/24208161
+
+ 2015-08-11 Myles C. Maxfield <mmaxfield@apple.com>
+
+ [iOS] Arabic letter Yeh is drawn in LastResort
+ https://bugs.webkit.org/show_bug.cgi?id=147862
+ <rdar://problem/22202935>
+
+ Reviewed by Darin Adler.
+
+ In order to perform font fallback, we must know which fonts support which characters. We
+ perform this check by asking each font to map a sequence of codepoints to glyphs, and
+ any glyphs which end up with a 0 value are unsupported by the font.
+
+ One of the mechanisms that we use to do this is to combine the code points into a string,
+ and tell Core Text to lay out the string. However, this is fundamentally a different
+ operation than the one we are trying to perform. Strings combine adjacent codepoints into
+ grapheme clusters, and CoreText operates on these. However, we are trying to gain
+ information regarding codepoints, not grapheme clusters.
+
+ Instead of taking this string-based approach, we should try harder to use Core Text
+ functions which operate on ordered collections of characters, rather than strings. In
+ particular, CTFontGetGlyphsForCharacters() and CTFontGetVerticalGlyphsForCharacters()
+ have the behavior we want where any unmapped characters end up with a 0 value glyph.
+
+ Previously, we were only using the result of those functions if they were successfully
+ able to map their entire input. However, given the fact that we can degrade gracefully
+ in the case of a partial mapping, we shouldn't need to bail completely to the
+ string-based approach should a partial mapping occur.
+
+ At some point we should delete the string-based approach entirely. However, this path
+ is still explicitly used for composite fonts. Fixing that use case is out of scope
+ for this patch.
+
+ Test: fast/text/arabic-glyph-cache-fill-combine.html
+
+ * platform/graphics/mac/GlyphPageMac.cpp:
+ (WebCore::GlyphPage::fill):
+
+2016-01-19 Matthew Hanson <matthew_hanson@apple.com>
+
</ins><span class="cx"> Merge r187693. rdar://problem/24208161
</span><span class="cx">
</span><span class="cx"> 2015-07-31 Myles C. Maxfield <mmaxfield@apple.com>
</span></span></pre></div>
<a id="branchessafari601146branchSourceWebCoreplatformgraphicsmacGlyphPageMaccpp"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46-branch/Source/WebCore/platform/graphics/mac/GlyphPageMac.cpp (195367 => 195368)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46-branch/Source/WebCore/platform/graphics/mac/GlyphPageMac.cpp 2016-01-20 20:59:37 UTC (rev 195367)
+++ branches/safari-601.1.46-branch/Source/WebCore/platform/graphics/mac/GlyphPageMac.cpp 2016-01-20 20:59:38 UTC (rev 195368)
</span><span class="lines">@@ -93,10 +93,11 @@
</span><span class="cx"> } else if (!fontData->platformData().isCompositeFontReference()) {
</span><span class="cx"> // Because we know the implementation of shouldUseCoreText(), if the font isn't for text combine and it isn't a system font,
</span><span class="cx"> // we know it must have vertical glyphs.
</span><del>- if (fontData->platformData().isForTextCombine() || fontData->isSystemFont())
</del><ins>+ if (fontData->platformData().widthVariant() == RegularWidth)
+ CTFontGetVerticalGlyphsForCharacters(fontData->platformData().ctFont(), buffer, glyphs.data(), bufferLength);
+ else
</ins><span class="cx"> CTFontGetGlyphsForCharacters(fontData->platformData().ctFont(), buffer, glyphs.data(), bufferLength);
</span><del>- else
- CTFontGetVerticalGlyphsForCharacters(fontData->platformData().ctFont(), buffer, glyphs.data(), bufferLength);
</del><ins>+
</ins><span class="cx"> // When buffer consists of surrogate pairs, CTFontGetVerticalGlyphsForCharacters and CTFontGetGlyphsForCharacters
</span><span class="cx"> // place the glyphs at indices corresponding to the first character of each pair.
</span><span class="cx"> ASSERT(!(bufferLength % length) && (bufferLength / length == 1 || bufferLength / length == 2));
</span></span></pre>
</div>
</div>
</body>
</html>