Merge "Select emoji font based on variation selectors."

include/minikin/FontFamily.h

@@ -48,6 +48,7 @@ public:
     operator bool() const { return mBits != 0; }
 
     bool isUnsupported() const { return mBits == kUnsupportedLanguage; }
+    bool hasEmojiFlag() const { return isUnsupported() ? false : (mBits & kEmojiFlag); }
 
     std::string getString() const;
 
@@ -61,9 +62,10 @@ private:
 
     static const uint32_t kUnsupportedLanguage = 0xFFFFFFFFu;
     static const uint32_t kBaseLangMask = 0xFFFFFFu;
-    static const uint32_t kScriptMask = (1u << 26) - (1u << 24);
     static const uint32_t kHansFlag = 1u << 24;
     static const uint32_t kHantFlag = 1u << 25;
+    static const uint32_t kEmojiFlag = 1u << 26;
+    static const uint32_t kScriptMask = kHansFlag | kHantFlag | kEmojiFlag;
     uint32_t mBits;
 };
 

libs/minikin/FontCollection.cpp

@@ -106,7 +106,15 @@ FontCollection::~FontCollection() {
 // 2. If a font matches both language and script, it gets a score of 4.
 // 3. If a font matches just language, it gets a score of 2.
 // 4. Matching the "compact" or "elegant" variant adds one to the score.
-// 5. Highest score wins, with ties resolved to the first font.
+// 5. If there is a variation selector and a font supports the complete variation sequence, we add
+//    12 to the score.
+// 6. If there is a color variation selector (U+FE0F), we add 6 to the score if the font is an emoji
+//    font. This additional score of 6 is only given if the base character is supported in the font,
+//    but not the whole variation sequence.
+// 7. If there is a text variation selector (U+FE0E), we add 6 to the score if the font is not an
+//    emoji font. This additional score of 6 is only given if the base character is supported in the
+//    font, but not the whole variation sequence.
+// 8. Highest score wins, with ties resolved to the first font.
 FontFamily* FontCollection::getFamilyForChar(uint32_t ch, uint32_t vs,
             FontLanguage lang, int variant) const {
     if (ch >= mMaxChar) {
@@ -131,27 +139,29 @@ FontFamily* FontCollection::getFamilyForChar(uint32_t ch, uint32_t vs,
     int bestScore = -1;
     for (size_t i = range.start; i < range.end; i++) {
         FontFamily* family = familyVec[i];
-        if (vs == 0 ? family->getCoverage()->get(ch) : family->hasVariationSelector(ch, vs)) {
-            // First font family in collection always matches
-            if (mFamilies[0] == family) {
+        const bool hasVSGlyph = (vs != 0) && family->hasVariationSelector(ch, vs);
+        if (hasVSGlyph || family->getCoverage()->get(ch)) {
+            if ((vs == 0 || hasVSGlyph) && mFamilies[0] == family) {
+                // If the first font family in collection supports the given character or sequence,
+                // always use it.
                 return family;
             }
             int score = lang.match(family->lang()) * 2;
             if (family->variant() == 0 || family->variant() == variant) {
                 score++;
             }
+            if (hasVSGlyph) {
+                score += 12;
+            } else if (((vs == 0xFE0F) && family->lang().hasEmojiFlag()) ||
+                    ((vs == 0xFE0E) && !family->lang().hasEmojiFlag())) {
+                score += 6;
+            }
             if (score > bestScore) {
                 bestScore = score;
                 bestFamily = family;
             }
         }
     }
-    if (bestFamily == nullptr && vs != 0) {
-        // If no fonts support the codepoint and variation selector pair,
-        // fallback to select a font family that supports just the base
-        // character, ignoring the variation selector.
-        return getFamilyForChar(ch, 0, lang, variant);
-    }
     if (bestFamily == nullptr && !mFamilyVec.empty()) {
         UErrorCode errorCode = U_ZERO_ERROR;
         const UNormalizer2* normalizer = unorm2_getNFDInstance(&errorCode);

libs/minikin/FontFamily.cpp

@@ -62,12 +62,16 @@ FontLanguage::FontLanguage(const char* buf, size_t size) {
             uint16_t c = buf[next];
             if (c == '-' || c == '_') break;
         }
-        if (next - i == 4 && buf[i] == 'H' && buf[i+1] == 'a' && buf[i+2] == 'n') {
+        if (next - i == 4) {
+            if (buf[i] == 'H' && buf[i+1] == 'a' && buf[i+2] == 'n') {
                 if (buf[i+3] == 's') {
                     bits |= kHansFlag;
                 } else if (buf[i+3] == 't') {
                     bits |= kHantFlag;
                 }
+            } else if (buf[i] == 'Q' && buf[i+1] == 'a' && buf[i+2] == 'a'&& buf[i+3] == 'e') {
+                bits |= kEmojiFlag;
+            }
         }
         // TODO: this might be a good place to infer script from country (zh_TW -> Hant),
         // but perhaps it's up to the client to do that, before passing a string.
@@ -96,11 +100,18 @@ std::string FontLanguage::getString() const {
             buf[i++] = 'd';
         }
         buf[i++] = '-';
+        if (mBits & kEmojiFlag) {
+            buf[i++] = 'Q';
+            buf[i++] = 'a';
+            buf[i++] = 'a';
+            buf[i++] = 'e';
+        } else {
             buf[i++] = 'H';
             buf[i++] = 'a';
             buf[i++] = 'n';
             buf[i++] = (mBits & kHansFlag) ? 's' : 't';
         }
+    }
     return std::string(buf, i);
 }
 

tests/FontCollectionItemizeTest.cpp

@@ -25,9 +25,9 @@ using android::FontFamily;
 using android::FontLanguage;
 using android::FontStyle;
 
-const char kItemizeFontXml[] = "/data/minikin/test/data/itemize.xml";
 #define kTestFontDir "/data/minikin/test/data/"
 
+const char kItemizeFontXml[] = kTestFontDir "itemize.xml";
 const char kEmojiFont[] = kTestFontDir "Emoji.ttf";
 const char kJAFont[] = kTestFontDir "Ja.ttf";
 const char kKOFont[] = kTestFontDir "Ko.ttf";
@@ -38,6 +38,12 @@ const char kLatinItalicFont[] = kTestFontDir "Italic.ttf";
 const char kZH_HansFont[] = kTestFontDir "ZhHans.ttf";
 const char kZH_HantFont[] = kTestFontDir "ZhHant.ttf";
 
+const char kEmojiXmlFile[] = kTestFontDir "emoji.xml";
+const char kNoGlyphFont[] =  kTestFontDir "NoGlyphFont.ttf";
+const char kColorEmojiFont[] = kTestFontDir "ColorEmojiFont.ttf";
+const char kTextEmojiFont[] = kTestFontDir "TextEmojiFont.ttf";
+const char kMixedEmojiFont[] = kTestFontDir "ColorTextMixedEmojiFont.ttf";
+
 // Utility function for calling itemize function.
 void itemize(FontCollection* collection, const char* str, FontStyle style,
         std::vector<FontCollection::Run>* result) {
@@ -52,6 +58,7 @@ void itemize(FontCollection* collection, const char* str, FontStyle style,
 
 // Utility function to obtain font path associated with run.
 const std::string& getFontPath(const FontCollection::Run& run) {
+    EXPECT_NE(nullptr, run.fakedFont.font);
     return ((MinikinFontForTest*)run.fakedFont.font)->fontPath();
 }
 
@@ -425,6 +432,21 @@ TEST(FontCollectionItemizeTest, itemize_variationSelector) {
     EXPECT_EQ(0, runs[0].start);
     EXPECT_EQ(1, runs[0].end);
     EXPECT_TRUE(runs[0].fakedFont.font == nullptr || kLatinFont == getFontPath(runs[0]));
+
+    // First font family (Regular.ttf) supports U+203C but doesn't support U+203C U+FE0F.
+    // Emoji.ttf font supports supports U+203C U+FE0F.  Emoji.ttf should be selected.
+    itemize(collection.get(), "U+203C U+FE0F", kZH_HantStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_EQ(kEmojiFont, getFontPath(runs[0]));
+
+    // First font family (Regular.ttf) supports U+203C U+FE0E.
+    itemize(collection.get(), "U+203C U+FE0E", kZH_HantStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_EQ(kLatinFont, getFontPath(runs[0]));
 }
 
 TEST(FontCollectionItemizeTest, itemize_variationSelectorSupplement) {
@@ -643,3 +665,240 @@ TEST(FontCollectionItemizeTest, itemize_vs_sequence_but_no_base_char) {
     family1->Unref();
     family2->Unref();
 }
+
+TEST(FontCollectionItemizeTest, itemize_emojiSelection) {
+    std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kEmojiXmlFile);
+    std::vector<FontCollection::Run> runs;
+
+    const FontStyle kDefaultFontStyle;
+
+    // U+00A9 is a text default emoji which is only available in TextEmojiFont.ttf.
+    // TextEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+00A9", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(1, runs[0].end);
+    EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
+
+    // U+00AE is a text default emoji which is only available in ColorEmojiFont.ttf.
+    // ColorEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+00AE", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(1, runs[0].end);
+    EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
+
+    // U+203C is a text default emoji which is available in both TextEmojiFont.ttf and
+    // ColorEmojiFont.ttf. TextEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+203C", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(1, runs[0].end);
+    // TODO: use text font for text default emoji.
+    // EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
+
+    // U+2049 is a text default emoji which is not available in either TextEmojiFont.ttf or
+    // ColorEmojiFont.ttf. No font should be selected.
+    itemize(collection.get(), "U+2049", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(1, runs[0].end);
+    EXPECT_TRUE(runs[0].fakedFont.font == NULL || kNoGlyphFont == getFontPath(runs[0]));
+
+    // U+231A is a emoji default emoji which is available only in TextEmojiFont.ttf.
+    // TextEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+231A", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(1, runs[0].end);
+    EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
+
+    // U+231B is a emoji default emoji which is available only in ColorEmojiFont.ttf.
+    // ColorEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+231B", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(1, runs[0].end);
+    EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
+
+    // U+23E9 is a emoji default emoji which is available in both TextEmojiFont.ttf and
+    // ColorEmojiFont.ttf. ColorEmojiFont should be selected.
+    itemize(collection.get(), "U+23E9", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(1, runs[0].end);
+    EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
+
+    // U+23EA is a emoji default emoji which is not avaialble in either TextEmojiFont.ttf and
+    // ColorEmojiFont.ttf. No font should b e selected.
+    itemize(collection.get(), "U+23EA", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(1, runs[0].end);
+    EXPECT_TRUE(runs[0].fakedFont.font == NULL || kNoGlyphFont == getFontPath(runs[0]));
+}
+
+TEST(FontCollectionItemizeTest, itemize_emojiSelection_withFE0E) {
+    std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kEmojiXmlFile);
+    std::vector<FontCollection::Run> runs;
+
+    const FontStyle kDefaultFontStyle;
+
+    // U+00A9 is a text default emoji which is only available in TextEmojiFont.ttf.
+    // TextEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+00A9 U+FE0E", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
+
+    // U+00A9 is a text default emoji which is only available in ColorEmojiFont.ttf.
+    // ColorEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+00AE U+FE0E", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    // Text emoji is specified but it is not available. Use color emoji instead.
+    EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
+
+    // U+203C is a text default emoji which is available in both TextEmojiFont.ttf and
+    // ColorEmojiFont.ttf. TextEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+203C U+FE0E", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
+
+    // U+2049 is a text default emoji which is not available either TextEmojiFont.ttf or
+    // ColorEmojiFont.ttf. No font should be selected.
+    itemize(collection.get(), "U+2049 U+FE0E", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_TRUE(runs[0].fakedFont.font == NULL || kNoGlyphFont == getFontPath(runs[0]));
+
+    // U+231A is a emoji default emoji which is available only in TextEmojifFont.
+    // TextEmojiFont.ttf sohuld be selected.
+    itemize(collection.get(), "U+231A U+FE0E", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
+
+    // U+231B is a emoji default emoji which is available only in ColorEmojiFont.ttf.
+    // ColorEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+231B U+FE0E", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    // Text emoji is specified but it is not available. Use color emoji instead.
+    EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
+
+    // U+23E9 is a emoji default emoji which is available in both TextEmojiFont.ttf and
+    // ColorEmojiFont.ttf. TextEmojiFont.ttf should be selected even if U+23E9 is emoji default
+    // emoji since U+FE0E is appended.
+    itemize(collection.get(), "U+23E9 U+FE0E", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
+
+    // U+23EA is a emoji default emoji but which is not available in either TextEmojiFont.ttf or
+    // ColorEmojiFont.ttf. No font should be selected.
+    itemize(collection.get(), "U+23EA U+FE0E", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_TRUE(runs[0].fakedFont.font == NULL || kNoGlyphFont == getFontPath(runs[0]));
+
+    // U+26FA U+FE0E is specified but ColorTextMixedEmojiFont has a variation sequence U+26F9 U+FE0F
+    // in its cmap, so ColorTextMixedEmojiFont should be selected instaed of ColorEmojiFont.
+    itemize(collection.get(), "U+26FA U+FE0E", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_EQ(kMixedEmojiFont, getFontPath(runs[0]));
+}
+
+TEST(FontCollectionItemizeTest, itemize_emojiSelection_withFE0F) {
+    std::unique_ptr<FontCollection> collection = getFontCollection(kTestFontDir, kEmojiXmlFile);
+    std::vector<FontCollection::Run> runs;
+
+    const FontStyle kDefaultFontStyle;
+
+    // U+00A9 is a text default emoji which is available only in TextEmojiFont.ttf.
+    // TextEmojiFont.ttf shoudl be selected.
+    itemize(collection.get(), "U+00A9 U+FE0F", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    // Color emoji is specified but it is not available. Use text representaion instead.
+    EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
+
+    // U+00AE is a text default emoji which is available only in ColorEmojiFont.ttf.
+    // ColorEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+00AE U+FE0F", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
+
+    // U+203C is a text default emoji which is available in both TextEmojiFont.ttf and
+    // ColorEmojiFont.ttf. ColorEmojiFont.ttf should be selected even if U+203C is a text default
+    // emoji since U+FF0F is appended.
+    itemize(collection.get(), "U+203C U+FE0F", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
+
+    // U+2049 is a text default emoji which is not available in either TextEmojiFont.ttf or
+    // ColorEmojiFont.ttf. No font should be selected.
+    itemize(collection.get(), "U+2049 U+FE0F", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_TRUE(runs[0].fakedFont.font == NULL || kNoGlyphFont == getFontPath(runs[0]));
+
+    // U+231A is a emoji default emoji which is available only in TextEmojiFont.ttf.
+    // TextEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+231A U+FE0F", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    // Color emoji is specified but it is not available. Use text representation instead.
+    EXPECT_EQ(kTextEmojiFont, getFontPath(runs[0]));
+
+    // U+231B is a emoji default emoji which is available only in ColorEmojiFont.ttf.
+    // ColorEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+231B U+FE0F", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
+
+    // U+23E9 is a emoji default emoji which is available in both TextEmojiFont.ttf and
+    // ColorEmojiFont.ttf. ColorEmojiFont.ttf should be selected.
+    itemize(collection.get(), "U+23E9 U+FE0F", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_EQ(kColorEmojiFont, getFontPath(runs[0]));
+
+    // U+23EA is a emoji default emoji which is not available in either TextEmojiFont.ttf or
+    // ColorEmojiFont.ttf. No font should be selected.
+    itemize(collection.get(), "U+23EA U+FE0F", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_TRUE(runs[0].fakedFont.font == NULL || kNoGlyphFont == getFontPath(runs[0]));
+
+    // U+26F9 U+FE0F is specified but ColorTextMixedEmojiFont has a variation sequence U+26F9 U+FE0F
+    // in its cmap, so ColorTextMixedEmojiFont should be selected instaed of ColorEmojiFont.
+    itemize(collection.get(), "U+26F9 U+FE0F", kDefaultFontStyle, &runs);
+    ASSERT_EQ(1U, runs.size());
+    EXPECT_EQ(0, runs[0].start);
+    EXPECT_EQ(2, runs[0].end);
+    EXPECT_EQ(kMixedEmojiFont, getFontPath(runs[0]));
+}
+

tests/FontFamilyTest.cpp

@@ -70,6 +70,19 @@ TEST(FontLanguagesTest, repeatedLanguageTests) {
     EXPECT_EQ(english, langs[0]);
 }
 
+TEST(FontLanguagesTest, undEmojiTests) {
+    FontLanguage emoji("und-Qaae", 8);
+    EXPECT_TRUE(emoji.hasEmojiFlag());
+
+    FontLanguage und("und", 3);
+    EXPECT_FALSE(und.hasEmojiFlag());
+    EXPECT_FALSE(emoji == und);
+
+    FontLanguage undExample("und-example", 10);
+    EXPECT_FALSE(undExample.hasEmojiFlag());
+    EXPECT_FALSE(emoji == undExample);
+}
+
 // The test font has following glyphs.
 // U+82A6
 // U+82A6 U+FE00 (VS1)

tests/data/ColorEmojiFont.ttx

+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright (C) 2015 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<ttFont sfntVersion="\x00\x01\x00\x00" ttLibVersion="3.0">
+
+  <GlyphOrder>
+    <!-- The 'id' attribute is only for humans; it is ignored when parsed. -->
+    <GlyphID id="0" name=".notdef"/>
+    <GlyphID id="1" name="Emoji1"/>
+    <GlyphID id="2" name="Emoji2"/>
+    <GlyphID id="3" name="Emoji3"/>
+    <GlyphID id="4" name="Emoji4"/>
+    <GlyphID id="5" name="Emoji5"/>
+    <GlyphID id="6" name="Emoji6"/>
+    <GlyphID id="7" name="Emoji7"/>
+    <GlyphID id="8" name="Emoji8"/>
+    <GlyphID id="9" name="Emoji9"/>
+  </GlyphOrder>
+
+  <head>
+    <!-- Most of this table will be recalculated by the compiler -->
+    <tableVersion value="1.0"/>
+    <fontRevision value="1.0"/>
+    <checkSumAdjustment value="0x640cdb2f"/>
+    <magicNumber value="0x5f0f3cf5"/>
+    <flags value="00000000 00000011"/>
+    <unitsPerEm value="1000"/>
+    <created value="Wed Sep  9 08:01:17 2015"/>
+    <modified value="Wed Sep  9 08:48:07 2015"/>
+    <xMin value="30"/>
+    <yMin value="-200"/>
+    <xMax value="629"/>
+    <yMax value="800"/>
+    <macStyle value="00000000 00000000"/>
+    <lowestRecPPEM value="7"/>
+    <fontDirectionHint value="2"/>
+    <indexToLocFormat value="0"/>
+    <glyphDataFormat value="0"/>
+  </head>
+
+  <hhea>
+    <tableVersion value="1.0"/>
+    <ascent value="1000"/>
+    <descent value="-200"/>
+    <lineGap value="0"/>
+    <advanceWidthMax value="659"/>
+    <minLeftSideBearing value="0"/>
+    <minRightSideBearing value="30"/>
+    <xMaxExtent value="629"/>
+    <caretSlopeRise value="1"/>
+    <caretSlopeRun value="0"/>
+    <caretOffset value="0"/>
+    <reserved0 value="0"/>
+    <reserved1 value="0"/>
+    <reserved2 value="0"/>
+    <reserved3 value="0"/>
+    <metricDataFormat value="0"/>
+    <numberOfHMetrics value="18"/>
+  </hhea>
+
+  <maxp>
+    <!-- Most of this table will be recalculated by the compiler -->
+    <tableVersion value="0x10000"/>
+    <numGlyphs value="54"/>
+    <maxPoints value="73"/>
+    <maxContours value="10"/>
+    <maxCompositePoints value="0"/>
+    <maxCompositeContours value="0"/>
+    <maxZones value="2"/>
+    <maxTwilightPoints value="12"/>
+    <maxStorage value="28"/>
+    <maxFunctionDefs value="119"/>
+    <maxInstructionDefs value="0"/>
+    <maxStackElements value="61"/>
+    <maxSizeOfInstructions value="2967"/>
+    <maxComponentElements value="0"/>
+    <maxComponentDepth value="0"/>
+  </maxp>
+
+  <OS_2>
+    <!-- The fields 'usFirstCharIndex' and 'usLastCharIndex'
+         will be recalculated by the compiler -->
+    <version value="3"/>
+    <xAvgCharWidth value="594"/>
+    <usWeightClass value="400"/>
+    <usWidthClass value="5"/>
+    <fsType value="00000000 00001000"/>
+    <ySubscriptXSize value="650"/>
+    <ySubscriptYSize value="600"/>
+    <ySubscriptXOffset value="0"/>
+    <ySubscriptYOffset value="75"/>
+    <ySuperscriptXSize value="650"/>
+    <ySuperscriptYSize value="600"/>
+    <ySuperscriptXOffset value="0"/>
+    <ySuperscriptYOffset value="350"/>
+    <yStrikeoutSize value="50"/>
+    <yStrikeoutPosition value="300"/>
+    <sFamilyClass value="0"/>
+    <panose>
+      <bFamilyType value="0"/>
+      <bSerifStyle value="0"/>
+      <bWeight value="5"/>
+      <bProportion value="0"/>
+      <bContrast value="0"/>
+      <bStrokeVariation value="0"/>
+      <bArmStyle value="0"/>
+      <bLetterForm value="0"/>
+      <bMidline value="0"/>
+      <bXHeight value="0"/>
+    </panose>
+    <ulUnicodeRange1 value="00000000 00000000 00000000 00000001"/>
+    <ulUnicodeRange2 value="00000000 00000000 00000000 00000000"/>
+    <ulUnicodeRange3 value="00000000 00000000 00000000 00000000"/>
+    <ulUnicodeRange4 value="00000000 00000000 00000000 00000000"/>
+    <achVendID value="UKWN"/>
+    <fsSelection value="00000000 01000000"/>
+    <usFirstCharIndex value="32"/>
+    <usLastCharIndex value="122"/>
+    <sTypoAscender value="800"/>
+    <sTypoDescender value="-200"/>
+    <sTypoLineGap value="200"/>
+    <usWinAscent value="1000"/>
+    <usWinDescent value="200"/>
+    <ulCodePageRange1 value="00000000 00000000 00000000 00000001"/>
+    <ulCodePageRange2 value="00000000 00000000 00000000 00000000"/>
+    <sxHeight value="500"/>
+    <sCapHeight value="700"/>
+    <usDefaultChar value="0"/>
+    <usBreakChar value="32"/>
+    <usMaxContext value="0"/>
+  </OS_2>
+
+  <hmtx>
+    <mtx name=".notdef" width="500" lsb="93"/>
+    <mtx name="Emoji1" width="500" lsb="93"/>
+    <mtx name="Emoji2" width="500" lsb="93"/>
+    <mtx name="Emoji3" width="500" lsb="93"/>
+    <mtx name="Emoji4" width="500" lsb="93"/>
+    <mtx name="Emoji5" width="500" lsb="93"/>
+    <mtx name="Emoji6" width="500" lsb="93"/>
+    <mtx name="Emoji7" width="500" lsb="93"/>
+    <mtx name="Emoji8" width="500" lsb="93"/>
+    <mtx name="Emoji9" width="500" lsb="93"/>
+  </hmtx>
+
+  <cmap>
+    <tableVersion version="0"/>
+    <cmap_format_4 platformID="3" platEncID="10" language="0">
+      <map code="0x00AE" name="Emoji2" /> <!-- Text Default -->
+      <map code="0x203C" name="Emoji3" /> <!-- Text Default -->
+      <map code="0x231B" name="Emoji6" /> <!-- Emoji Default -->
+      <map code="0x23E9" name="Emoji7" /> <!-- Emoji Default -->
+      <map code="0x26F9" name="Emoji9" /> <!-- U+26F9 U+FE0F is in ColorTextMixedEmojiFont.ttf -->
+    </cmap_format_4>
+  </cmap>
+
+  <loca>
+    <!-- The 'loca' table will be calculated by the compiler -->
+  </loca>
+
+  <glyf>
+
+    <!-- The xMin, yMin, xMax and yMax values
+         will be recalculated by the compiler. -->
+
+    <TTGlyph name=".notdef" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+
+    <TTGlyph name="Emoji1" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji2" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji3" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji4" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji5" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji6" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji7" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji8" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji9" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+  </glyf>
+
+  <name>
+    <namerecord nameID="1" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      ColorEmojiFont Test
+    </namerecord>
+    <namerecord nameID="2" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      Regular
+    </namerecord>
+    <namerecord nameID="4" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      ColorEmojiFont Test
+    </namerecord>
+    <namerecord nameID="6" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      ColorEmojiFontTest-Regular
+    </namerecord>
+    <namerecord nameID="1" platformID="3" platEncID="1" langID="0x409">
+      ColorEmojiFont Test
+    </namerecord>
+    <namerecord nameID="2" platformID="3" platEncID="1" langID="0x409">
+      Regular
+    </namerecord>
+    <namerecord nameID="4" platformID="3" platEncID="1" langID="0x409">
+      ColorEmojiFont Test
+    </namerecord>
+    <namerecord nameID="6" platformID="3" platEncID="1" langID="0x409">
+      ColorEmojiFontTest-Regular
+    </namerecord>
+  </name>
+
+  <post>
+    <formatType value="3.0"/>
+    <italicAngle value="0.0"/>
+    <underlinePosition value="-75"/>
+    <underlineThickness value="50"/>
+    <isFixedPitch value="0"/>
+    <minMemType42 value="0"/>
+    <maxMemType42 value="0"/>
+    <minMemType1 value="0"/>
+    <maxMemType1 value="0"/>
+  </post>
+
+</ttFont>

tests/data/ColorTextMixedEmojiFont.ttx

+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright (C) 2015 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<ttFont sfntVersion="\x00\x01\x00\x00" ttLibVersion="3.0">
+
+  <GlyphOrder>
+    <!-- The 'id' attribute is only for humans; it is ignored when parsed. -->
+    <GlyphID id="0" name=".notdef"/>
+    <GlyphID id="1" name="Emoji1"/>
+    <GlyphID id="2" name="Emoji2"/>
+  </GlyphOrder>
+
+  <head>
+    <!-- Most of this table will be recalculated by the compiler -->
+    <tableVersion value="1.0"/>
+    <fontRevision value="1.0"/>
+    <checkSumAdjustment value="0x640cdb2f"/>
+    <magicNumber value="0x5f0f3cf5"/>
+    <flags value="00000000 00000011"/>
+    <unitsPerEm value="1000"/>
+    <created value="Wed Sep  9 08:01:17 2015"/>
+    <modified value="Wed Sep  9 08:48:07 2015"/>
+    <xMin value="30"/>
+    <yMin value="-200"/>
+    <xMax value="629"/>
+    <yMax value="800"/>
+    <macStyle value="00000000 00000000"/>
+    <lowestRecPPEM value="7"/>
+    <fontDirectionHint value="2"/>
+    <indexToLocFormat value="0"/>
+    <glyphDataFormat value="0"/>
+  </head>
+
+  <hhea>
+    <tableVersion value="1.0"/>
+    <ascent value="1000"/>
+    <descent value="-200"/>
+    <lineGap value="0"/>
+    <advanceWidthMax value="659"/>
+    <minLeftSideBearing value="0"/>
+    <minRightSideBearing value="30"/>
+    <xMaxExtent value="629"/>
+    <caretSlopeRise value="1"/>
+    <caretSlopeRun value="0"/>
+    <caretOffset value="0"/>
+    <reserved0 value="0"/>
+    <reserved1 value="0"/>
+    <reserved2 value="0"/>
+    <reserved3 value="0"/>
+    <metricDataFormat value="0"/>
+    <numberOfHMetrics value="18"/>
+  </hhea>
+
+  <maxp>
+    <!-- Most of this table will be recalculated by the compiler -->
+    <tableVersion value="0x10000"/>
+    <numGlyphs value="54"/>
+    <maxPoints value="73"/>
+    <maxContours value="10"/>
+    <maxCompositePoints value="0"/>
+    <maxCompositeContours value="0"/>
+    <maxZones value="2"/>
+    <maxTwilightPoints value="12"/>
+    <maxStorage value="28"/>
+    <maxFunctionDefs value="119"/>
+    <maxInstructionDefs value="0"/>
+    <maxStackElements value="61"/>
+    <maxSizeOfInstructions value="2967"/>
+    <maxComponentElements value="0"/>
+    <maxComponentDepth value="0"/>
+  </maxp>
+
+  <OS_2>
+    <!-- The fields 'usFirstCharIndex' and 'usLastCharIndex'
+         will be recalculated by the compiler -->
+    <version value="3"/>
+    <xAvgCharWidth value="594"/>
+    <usWeightClass value="400"/>
+    <usWidthClass value="5"/>
+    <fsType value="00000000 00001000"/>
+    <ySubscriptXSize value="650"/>
+    <ySubscriptYSize value="600"/>
+    <ySubscriptXOffset value="0"/>
+    <ySubscriptYOffset value="75"/>
+    <ySuperscriptXSize value="650"/>
+    <ySuperscriptYSize value="600"/>
+    <ySuperscriptXOffset value="0"/>
+    <ySuperscriptYOffset value="350"/>
+    <yStrikeoutSize value="50"/>
+    <yStrikeoutPosition value="300"/>
+    <sFamilyClass value="0"/>
+    <panose>
+      <bFamilyType value="0"/>
+      <bSerifStyle value="0"/>
+      <bWeight value="5"/>
+      <bProportion value="0"/>
+      <bContrast value="0"/>
+      <bStrokeVariation value="0"/>
+      <bArmStyle value="0"/>
+      <bLetterForm value="0"/>
+      <bMidline value="0"/>
+      <bXHeight value="0"/>
+    </panose>
+    <ulUnicodeRange1 value="00000000 00000000 00000000 00000001"/>
+    <ulUnicodeRange2 value="00000000 00000000 00000000 00000000"/>
+    <ulUnicodeRange3 value="00000000 00000000 00000000 00000000"/>
+    <ulUnicodeRange4 value="00000000 00000000 00000000 00000000"/>
+    <achVendID value="UKWN"/>
+    <fsSelection value="00000000 01000000"/>
+    <usFirstCharIndex value="32"/>
+    <usLastCharIndex value="122"/>
+    <sTypoAscender value="800"/>
+    <sTypoDescender value="-200"/>
+    <sTypoLineGap value="200"/>
+    <usWinAscent value="1000"/>
+    <usWinDescent value="200"/>
+    <ulCodePageRange1 value="00000000 00000000 00000000 00000001"/>
+    <ulCodePageRange2 value="00000000 00000000 00000000 00000000"/>
+    <sxHeight value="500"/>
+    <sCapHeight value="700"/>
+    <usDefaultChar value="0"/>
+    <usBreakChar value="32"/>
+    <usMaxContext value="0"/>
+  </OS_2>
+
+  <hmtx>
+    <mtx name=".notdef" width="500" lsb="93"/>
+    <mtx name="Emoji1" width="500" lsb="93"/>
+    <mtx name="Emoji2" width="500" lsb="93"/>
+  </hmtx>
+
+  <cmap>
+    <tableVersion version="0"/>
+    <cmap_format_14 format="14" platformID="0" platEncID="5" length="40" numVarSelectorRecords="2">
+      <map uvs="0xFE0E" uv="0x26FA" name="Emoji1" />
+      <map uvs="0xFE0F" uv="0x26F9" name="Emoji2" />
+    </cmap_format_14>
+  </cmap>
+
+  <loca>
+    <!-- The 'loca' table will be calculated by the compiler -->
+  </loca>
+
+  <glyf>
+
+    <!-- The xMin, yMin, xMax and yMax values
+         will be recalculated by the compiler. -->
+
+    <TTGlyph name=".notdef" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+
+    <TTGlyph name="Emoji1" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji2" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+  </glyf>
+
+  <name>
+    <namerecord nameID="1" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      ColorTextMixedEmojiFont Test
+    </namerecord>
+    <namerecord nameID="2" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      Regular
+    </namerecord>
+    <namerecord nameID="4" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      ColorTextMixedEmojiFont Test
+    </namerecord>
+    <namerecord nameID="6" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      ColorTextMixedEmojiFontTest-Regular
+    </namerecord>
+    <namerecord nameID="1" platformID="3" platEncID="1" langID="0x409">
+      ColorTextMixedEmojiFont Test
+    </namerecord>
+    <namerecord nameID="2" platformID="3" platEncID="1" langID="0x409">
+      Regular
+    </namerecord>
+    <namerecord nameID="4" platformID="3" platEncID="1" langID="0x409">
+      ColorTextMixedEmojiFont Test
+    </namerecord>
+    <namerecord nameID="6" platformID="3" platEncID="1" langID="0x409">
+      ColorTextMixedEmojiFontTest-Regular
+    </namerecord>
+  </name>
+
+  <post>
+    <formatType value="3.0"/>
+    <italicAngle value="0.0"/>
+    <underlinePosition value="-75"/>
+    <underlineThickness value="50"/>
+    <isFixedPitch value="0"/>
+    <minMemType42 value="0"/>
+    <maxMemType42 value="0"/>
+    <minMemType1 value="0"/>
+    <maxMemType1 value="0"/>
+  </post>
+
+</ttFont>

tests/data/Emoji.ttx

@@ -23,6 +23,7 @@
     <GlyphID id="3" name="U+20E3"/>
     <GlyphID id="4" name="0"/>
     <GlyphID id="5" name="U+1F470"/>
+    <GlyphID id="6" name="U+203C_VS16"/>
   </GlyphOrder>
 
   <head>
@@ -145,6 +146,7 @@
     <mtx name="U+20E3" width="500" lsb="93"/>
     <mtx name="0" width="500" lsb="93"/>
     <mtx name="U+1F470" width="500" lsb="93"/>
+    <mtx name="U+203C_VS16" width="500" lsb="93"/>
   </hmtx>
 
   <cmap>
@@ -156,6 +158,9 @@
       <map code="0x0030" name="0" />
       <map code="0x1F470" name="U+1F470" />
     </cmap_format_12>
+    <cmap_format_14 format="14" platformID="0" platEncID="5" length="30" numVarSelectorRecords="1">
+      <map uvs="0xFE0F" uv="0x203C" name="U+203C_VS16" />
+    </cmap_format_14>
   </cmap>
 
   <loca>
@@ -186,6 +191,9 @@
     <TTGlyph name="U+1F470" xMin="0" yMin="0" xMax="0" yMax="0">
       <contour></contour><instructions><assembly></assembly></instructions>
     </TTGlyph>
+    <TTGlyph name="U+203C_VS16" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
   </glyf>
 
   <name>

tests/data/NoGlyphFont.ttx

+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright (C) 2015 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<ttFont sfntVersion="\x00\x01\x00\x00" ttLibVersion="3.0">
+
+  <GlyphOrder>
+    <!-- The 'id' attribute is only for humans; it is ignored when parsed. -->
+    <GlyphID id="0" name=".notdef"/>
+  </GlyphOrder>
+
+  <head>
+    <!-- Most of this table will be recalculated by the compiler -->
+    <tableVersion value="1.0"/>
+    <fontRevision value="1.0"/>
+    <checkSumAdjustment value="0x640cdb2f"/>
+    <magicNumber value="0x5f0f3cf5"/>
+    <flags value="00000000 00000011"/>
+    <unitsPerEm value="1000"/>
+    <created value="Wed Sep  9 08:01:17 2015"/>
+    <modified value="Wed Sep  9 08:48:07 2015"/>
+    <xMin value="30"/>
+    <yMin value="-200"/>
+    <xMax value="629"/>
+    <yMax value="800"/>
+    <macStyle value="00000000 00000000"/>
+    <lowestRecPPEM value="7"/>
+    <fontDirectionHint value="2"/>
+    <indexToLocFormat value="0"/>
+    <glyphDataFormat value="0"/>
+  </head>
+
+  <hhea>
+    <tableVersion value="1.0"/>
+    <ascent value="1000"/>
+    <descent value="-200"/>
+    <lineGap value="0"/>
+    <advanceWidthMax value="659"/>
+    <minLeftSideBearing value="0"/>
+    <minRightSideBearing value="30"/>
+    <xMaxExtent value="629"/>
+    <caretSlopeRise value="1"/>
+    <caretSlopeRun value="0"/>
+    <caretOffset value="0"/>
+    <reserved0 value="0"/>
+    <reserved1 value="0"/>
+    <reserved2 value="0"/>
+    <reserved3 value="0"/>
+    <metricDataFormat value="0"/>
+    <numberOfHMetrics value="18"/>
+  </hhea>
+
+  <maxp>
+    <!-- Most of this table will be recalculated by the compiler -->
+    <tableVersion value="0x10000"/>
+    <numGlyphs value="54"/>
+    <maxPoints value="73"/>
+    <maxContours value="10"/>
+    <maxCompositePoints value="0"/>
+    <maxCompositeContours value="0"/>
+    <maxZones value="2"/>
+    <maxTwilightPoints value="12"/>
+    <maxStorage value="28"/>
+    <maxFunctionDefs value="119"/>
+    <maxInstructionDefs value="0"/>
+    <maxStackElements value="61"/>
+    <maxSizeOfInstructions value="2967"/>
+    <maxComponentElements value="0"/>
+    <maxComponentDepth value="0"/>
+  </maxp>
+
+  <OS_2>
+    <!-- The fields 'usFirstCharIndex' and 'usLastCharIndex'
+         will be recalculated by the compiler -->
+    <version value="3"/>
+    <xAvgCharWidth value="594"/>
+    <usWeightClass value="400"/>
+    <usWidthClass value="5"/>
+    <fsType value="00000000 00001000"/>
+    <ySubscriptXSize value="650"/>
+    <ySubscriptYSize value="600"/>
+    <ySubscriptXOffset value="0"/>
+    <ySubscriptYOffset value="75"/>
+    <ySuperscriptXSize value="650"/>
+    <ySuperscriptYSize value="600"/>
+    <ySuperscriptXOffset value="0"/>
+    <ySuperscriptYOffset value="350"/>
+    <yStrikeoutSize value="50"/>
+    <yStrikeoutPosition value="300"/>
+    <sFamilyClass value="0"/>
+    <panose>
+      <bFamilyType value="0"/>
+      <bSerifStyle value="0"/>
+      <bWeight value="5"/>
+      <bProportion value="0"/>
+      <bContrast value="0"/>
+      <bStrokeVariation value="0"/>
+      <bArmStyle value="0"/>
+      <bLetterForm value="0"/>
+      <bMidline value="0"/>
+      <bXHeight value="0"/>
+    </panose>
+    <ulUnicodeRange1 value="00000000 00000000 00000000 00000001"/>
+    <ulUnicodeRange2 value="00000000 00000000 00000000 00000000"/>
+    <ulUnicodeRange3 value="00000000 00000000 00000000 00000000"/>
+    <ulUnicodeRange4 value="00000000 00000000 00000000 00000000"/>
+    <achVendID value="UKWN"/>
+    <fsSelection value="00000000 01000000"/>
+    <usFirstCharIndex value="32"/>
+    <usLastCharIndex value="122"/>
+    <sTypoAscender value="800"/>
+    <sTypoDescender value="-200"/>
+    <sTypoLineGap value="200"/>
+    <usWinAscent value="1000"/>
+    <usWinDescent value="200"/>
+    <ulCodePageRange1 value="00000000 00000000 00000000 00000001"/>
+    <ulCodePageRange2 value="00000000 00000000 00000000 00000000"/>
+    <sxHeight value="500"/>
+    <sCapHeight value="700"/>
+    <usDefaultChar value="0"/>
+    <usBreakChar value="32"/>
+    <usMaxContext value="0"/>
+  </OS_2>
+
+  <hmtx>
+    <mtx name=".notdef" width="500" lsb="93"/>
+  </hmtx>
+
+  <cmap>
+    <tableVersion version="0"/>
+    <cmap_format_4 platformID="3" platEncID="10" language="0">
+    </cmap_format_4>
+  </cmap>
+
+  <loca>
+    <!-- The 'loca' table will be calculated by the compiler -->
+  </loca>
+
+  <glyf>
+
+    <!-- The xMin, yMin, xMax and yMax values
+         will be recalculated by the compiler. -->
+
+    <TTGlyph name=".notdef" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+  </glyf>
+
+  <name>
+    <namerecord nameID="1" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      EmptyFont Test
+    </namerecord>
+    <namerecord nameID="2" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      Regular
+    </namerecord>
+    <namerecord nameID="4" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      EmptyFont Test
+    </namerecord>
+    <namerecord nameID="6" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      EmptyFontTest-Regular
+    </namerecord>
+    <namerecord nameID="1" platformID="3" platEncID="1" langID="0x409">
+      EmptyFont Test
+    </namerecord>
+    <namerecord nameID="2" platformID="3" platEncID="1" langID="0x409">
+      Regular
+    </namerecord>
+    <namerecord nameID="4" platformID="3" platEncID="1" langID="0x409">
+      EmptyFont Test
+    </namerecord>
+    <namerecord nameID="6" platformID="3" platEncID="1" langID="0x409">
+      EmptyFontTest-Regular
+    </namerecord>
+  </name>
+
+  <post>
+    <formatType value="3.0"/>
+    <italicAngle value="0.0"/>
+    <underlinePosition value="-75"/>
+    <underlineThickness value="50"/>
+    <isFixedPitch value="0"/>
+    <minMemType42 value="0"/>
+    <maxMemType42 value="0"/>
+    <minMemType1 value="0"/>
+    <maxMemType1 value="0"/>
+  </post>
+
+</ttFont>

tests/data/Regular.ttx

@@ -27,6 +27,7 @@
     <GlyphID id="7" name="-"/>
     <GlyphID id="8" name="!"/>
     <GlyphID id="9" name="U+0301"/>
+    <GlyphID id="10" name="U+203C"/>
   </GlyphOrder>
 
   <head>
@@ -153,6 +154,7 @@
     <mtx name="-" width="500" lsb="93"/>
     <mtx name="!" width="500" lsb="93"/>
     <mtx name="U+0301" width="500" lsb="93"/>
+    <mtx name="U+203C" width="500" lsb="93"/>
   </hmtx>
 
   <cmap>
@@ -167,7 +169,11 @@
       <map code="0x002D" name="-" />
       <map code="0x0021" name="!" />
       <map code="0x0301" name="U+0301" />
+      <map code="0x203C" name="U+203C" />
     </cmap_format_4>
+    <cmap_format_14 format="14" platformID="0" platEncID="5" length="29" numVarSelectorRecords="1">
+      <map uvs="0xFE0E" uv="0x203C" name="None" />
+    </cmap_format_14>
   </cmap>
 
   <loca>
@@ -210,6 +216,9 @@
     <TTGlyph name="U+0301" xMin="0" yMin="0" xMax="0" yMax="0">
       <contour></contour><instructions><assembly></assembly></instructions>
     </TTGlyph>
+    <TTGlyph name="U+203C" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
   </glyf>
 
   <name>

tests/data/TextEmojiFont.ttx

+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright (C) 2015 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<ttFont sfntVersion="\x00\x01\x00\x00" ttLibVersion="3.0">
+
+  <GlyphOrder>
+    <!-- The 'id' attribute is only for humans; it is ignored when parsed. -->
+    <GlyphID id="0" name=".notdef"/>
+    <GlyphID id="1" name="Emoji1"/>
+    <GlyphID id="2" name="Emoji2"/>
+    <GlyphID id="3" name="Emoji3"/>
+    <GlyphID id="4" name="Emoji4"/>
+    <GlyphID id="5" name="Emoji5"/>
+    <GlyphID id="6" name="Emoji6"/>
+    <GlyphID id="7" name="Emoji7"/>
+    <GlyphID id="8" name="Emoji8"/>
+    <GlyphID id="9" name="Emoji9"/>
+  </GlyphOrder>
+
+  <head>
+    <!-- Most of this table will be recalculated by the compiler -->
+    <tableVersion value="1.0"/>
+    <fontRevision value="1.0"/>
+    <checkSumAdjustment value="0x640cdb2f"/>
+    <magicNumber value="0x5f0f3cf5"/>
+    <flags value="00000000 00000011"/>
+    <unitsPerEm value="1000"/>
+    <created value="Wed Sep  9 08:01:17 2015"/>
+    <modified value="Wed Sep  9 08:48:07 2015"/>
+    <xMin value="30"/>
+    <yMin value="-200"/>
+    <xMax value="629"/>
+    <yMax value="800"/>
+    <macStyle value="00000000 00000000"/>
+    <lowestRecPPEM value="7"/>
+    <fontDirectionHint value="2"/>
+    <indexToLocFormat value="0"/>
+    <glyphDataFormat value="0"/>
+  </head>
+
+  <hhea>
+    <tableVersion value="1.0"/>
+    <ascent value="1000"/>
+    <descent value="-200"/>
+    <lineGap value="0"/>
+    <advanceWidthMax value="659"/>
+    <minLeftSideBearing value="0"/>
+    <minRightSideBearing value="30"/>
+    <xMaxExtent value="629"/>
+    <caretSlopeRise value="1"/>
+    <caretSlopeRun value="0"/>
+    <caretOffset value="0"/>
+    <reserved0 value="0"/>
+    <reserved1 value="0"/>
+    <reserved2 value="0"/>
+    <reserved3 value="0"/>
+    <metricDataFormat value="0"/>
+    <numberOfHMetrics value="18"/>
+  </hhea>
+
+  <maxp>
+    <!-- Most of this table will be recalculated by the compiler -->
+    <tableVersion value="0x10000"/>
+    <numGlyphs value="54"/>
+    <maxPoints value="73"/>
+    <maxContours value="10"/>
+    <maxCompositePoints value="0"/>
+    <maxCompositeContours value="0"/>
+    <maxZones value="2"/>
+    <maxTwilightPoints value="12"/>
+    <maxStorage value="28"/>
+    <maxFunctionDefs value="119"/>
+    <maxInstructionDefs value="0"/>
+    <maxStackElements value="61"/>
+    <maxSizeOfInstructions value="2967"/>
+    <maxComponentElements value="0"/>
+    <maxComponentDepth value="0"/>
+  </maxp>
+
+  <OS_2>
+    <!-- The fields 'usFirstCharIndex' and 'usLastCharIndex'
+         will be recalculated by the compiler -->
+    <version value="3"/>
+    <xAvgCharWidth value="594"/>
+    <usWeightClass value="400"/>
+    <usWidthClass value="5"/>
+    <fsType value="00000000 00001000"/>
+    <ySubscriptXSize value="650"/>
+    <ySubscriptYSize value="600"/>
+    <ySubscriptXOffset value="0"/>
+    <ySubscriptYOffset value="75"/>
+    <ySuperscriptXSize value="650"/>
+    <ySuperscriptYSize value="600"/>
+    <ySuperscriptXOffset value="0"/>
+    <ySuperscriptYOffset value="350"/>
+    <yStrikeoutSize value="50"/>
+    <yStrikeoutPosition value="300"/>
+    <sFamilyClass value="0"/>
+    <panose>
+      <bFamilyType value="0"/>
+      <bSerifStyle value="0"/>
+      <bWeight value="5"/>
+      <bProportion value="0"/>
+      <bContrast value="0"/>
+      <bStrokeVariation value="0"/>
+      <bArmStyle value="0"/>
+      <bLetterForm value="0"/>
+      <bMidline value="0"/>
+      <bXHeight value="0"/>
+    </panose>
+    <ulUnicodeRange1 value="00000000 00000000 00000000 00000001"/>
+    <ulUnicodeRange2 value="00000000 00000000 00000000 00000000"/>
+    <ulUnicodeRange3 value="00000000 00000000 00000000 00000000"/>
+    <ulUnicodeRange4 value="00000000 00000000 00000000 00000000"/>
+    <achVendID value="UKWN"/>
+    <fsSelection value="00000000 01000000"/>
+    <usFirstCharIndex value="32"/>
+    <usLastCharIndex value="122"/>
+    <sTypoAscender value="800"/>
+    <sTypoDescender value="-200"/>
+    <sTypoLineGap value="200"/>
+    <usWinAscent value="1000"/>
+    <usWinDescent value="200"/>
+    <ulCodePageRange1 value="00000000 00000000 00000000 00000001"/>
+    <ulCodePageRange2 value="00000000 00000000 00000000 00000000"/>
+    <sxHeight value="500"/>
+    <sCapHeight value="700"/>
+    <usDefaultChar value="0"/>
+    <usBreakChar value="32"/>
+    <usMaxContext value="0"/>
+  </OS_2>
+
+  <hmtx>
+    <mtx name=".notdef" width="500" lsb="93"/>
+    <mtx name="Emoji1" width="500" lsb="93"/>
+    <mtx name="Emoji2" width="500" lsb="93"/>
+    <mtx name="Emoji3" width="500" lsb="93"/>
+    <mtx name="Emoji4" width="500" lsb="93"/>
+    <mtx name="Emoji5" width="500" lsb="93"/>
+    <mtx name="Emoji6" width="500" lsb="93"/>
+    <mtx name="Emoji7" width="500" lsb="93"/>
+    <mtx name="Emoji8" width="500" lsb="93"/>
+    <mtx name="Emoji9" width="500" lsb="93"/>
+  </hmtx>
+
+  <cmap>
+    <tableVersion version="0"/>
+    <cmap_format_4 platformID="3" platEncID="10" language="0">
+      <map code="0x00A9" name="Emoji1" /> <!-- Text Default -->
+      <map code="0x203C" name="Emoji3" /> <!-- Text Default -->
+      <map code="0x231A" name="Emoji5" /> <!-- Emoji Default -->
+      <map code="0x23E9" name="Emoji7" /> <!-- Emoji Default -->
+      <map code="0x26FA" name="Emoji9" /> <!-- U+26FA U+FE0E is in ColorTextMixedEmojiFont.ttf -->
+    </cmap_format_4>
+  </cmap>
+
+  <loca>
+    <!-- The 'loca' table will be calculated by the compiler -->
+  </loca>
+
+  <glyf>
+
+    <!-- The xMin, yMin, xMax and yMax values
+         will be recalculated by the compiler. -->
+
+    <TTGlyph name=".notdef" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+
+    <TTGlyph name="Emoji1" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji2" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji3" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji4" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji5" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji6" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji7" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji8" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+    <TTGlyph name="Emoji9" xMin="0" yMin="0" xMax="0" yMax="0">
+      <contour></contour><instructions><assembly></assembly></instructions>
+    </TTGlyph>
+  </glyf>
+
+  <name>
+    <namerecord nameID="1" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      TextEmojiFont Test
+    </namerecord>
+    <namerecord nameID="2" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      Regular
+    </namerecord>
+    <namerecord nameID="4" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      TextEmojiFont Test
+    </namerecord>
+    <namerecord nameID="6" platformID="1" platEncID="0" langID="0x0" unicode="True">
+      TextEmojiFontTest-Regular
+    </namerecord>
+    <namerecord nameID="1" platformID="3" platEncID="1" langID="0x409">
+      TextEmojiFont Test
+    </namerecord>
+    <namerecord nameID="2" platformID="3" platEncID="1" langID="0x409">
+      Regular
+    </namerecord>
+    <namerecord nameID="4" platformID="3" platEncID="1" langID="0x409">
+      TextEmojiFont Test
+    </namerecord>
+    <namerecord nameID="6" platformID="3" platEncID="1" langID="0x409">
+      TextEmojiFontTest-Regular
+    </namerecord>
+  </name>
+
+  <post>
+    <formatType value="3.0"/>
+    <italicAngle value="0.0"/>
+    <underlinePosition value="-75"/>
+    <underlineThickness value="50"/>
+    <isFixedPitch value="0"/>
+    <minMemType42 value="0"/>
+    <maxMemType42 value="0"/>
+    <minMemType1 value="0"/>
+    <maxMemType1 value="0"/>
+  </post>
+
+</ttFont>

tests/data/emoji.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2015 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<familyset version="22">
+    <!-- Place NoGlyphFont here since the first font can be chosen if no font is
+         available for the code point. -->
+    <family>
+        <font weight="400" style="normal">NoGlyphFont.ttf</font>
+    </family>
+    <family lang="und-Qaae">
+        <font weight="400" style="normal">ColorEmojiFont.ttf</font>
+    </family>
+    <family>
+        <font weight="400" style="normal">TextEmojiFont.ttf</font>
+    </family>
+    <family>
+        <font weight="400" style="normal">ColorTextMixedEmojiFont.ttf</font>
+    </family>
+</familyset>