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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [FreeType] FontPlatformData::fallbacks() returns incomplete FcPatterns"
href="https://bugs.webkit.org/show_bug.cgi?id=164689">164689</a>
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<th>Summary</th>
<td>[FreeType] FontPlatformData::fallbacks() returns incomplete FcPatterns
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<th>Classification</th>
<td>Unclassified
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<th>Product</th>
<td>WebKit
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<th>Version</th>
<td>WebKit Nightly Build
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>Normal
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>WebKit Gtk
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>mcatanzaro@igalia.com
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<th>CC</th>
<td>bugs-noreply@webkitgtk.org, mmaxfield@apple.com, mrobinson@webkit.org
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<p>
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<pre>Behdad warned me about this at the Web Engines Hackfest. From the documentation of FcFontSort():
"""The returned FcFontSet references FcPattern structures which may be shared by the return value from multiple FcFontSort calls, applications must not modify these patterns. Instead, they should be passed, along with p to FcFontRenderPrepare which combines them into a complete pattern."""
That means each call to FcFontSort() must be followed up by a call to FcFontRenderPrepare(), else the patterns will lack information about how to draw the font properly.</pre>
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