Attachment 357219 Details for Bug 192589 – Patch for landing

[patch] Patch for landing

wk-hb-face-removed.diff (text/plain), 45.08 KB, created by Carlos Garcia Campos on 2018-12-13 01:20:36 PST

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Creator: Carlos Garcia Campos

Created: 2018-12-13 01:20:36 PST

Size: 45.08 KB

patch

obsolete

>diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
>index d4c3a3475d9..595a46c44dc 100644
>--- a/LayoutTests/ChangeLog
>+++ b/LayoutTests/ChangeLog
>@@ -1,3 +1,15 @@
>+2018-12-13  Carlos Garcia Campos  <cgarcia@igalia.com>
>+
>+        [FreeType] Remove HarfBuzzFace
>+        https://bugs.webkit.org/show_bug.cgi?id=192589
>+
>+        Reviewed by Michael Catanzaro.
>+
>+        Rebaseline test that now matches the firefox output.
>+
>+        * platform/gtk/mathml/opentype/opentype-stretchy-expected.png:
>+        * platform/gtk/mathml/opentype/opentype-stretchy-expected.txt:
>+
> 2018-12-12  Carlos Garcia Campos  <cgarcia@igalia.com>
> 
>         [FreeType] Add initial implementation of variation fonts
>diff --git a/LayoutTests/platform/gtk/mathml/opentype/opentype-stretchy-expected.png b/LayoutTests/platform/gtk/mathml/opentype/opentype-stretchy-expected.png
>index 35ebe7311ef20606e407b82ca6c460e7c8a39d32..0585a0e6f56d3ba75324bd010f24affb7b06d6f4 100644
>GIT binary patch
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>diff --git a/LayoutTests/platform/gtk/mathml/opentype/opentype-stretchy-expected.txt b/LayoutTests/platform/gtk/mathml/opentype/opentype-stretchy-expected.txt
>index 892e925a17b..2591cf3f421 100644
>--- a/LayoutTests/platform/gtk/mathml/opentype/opentype-stretchy-expected.txt
>+++ b/LayoutTests/platform/gtk/mathml/opentype/opentype-stretchy-expected.txt
>@@ -1,8 +1,8 @@
> layer at (0,0) size 800x600
>   RenderView at (0,0) size 800x600
>-layer at (0,0) size 800x339
>-  RenderBlock {HTML} at (0,0) size 800x339
>-    RenderBody {BODY} at (8,16) size 784x307
>+layer at (0,0) size 800x350
>+  RenderBlock {HTML} at (0,0) size 800x350
>+    RenderBody {BODY} at (8,16) size 784x318
>       RenderBlock {P} at (0,0) size 784x35
>         RenderMathMLMath {math} at (0,20) size 26x11
>           RenderMathMLRow {mrow} at (0,0) size 26x11
>@@ -35,10 +35,10 @@ layer at (0,0) size 800x339
>                 RenderText {#text} at (0,-3) size 2x0
>                   text run at (0,-3) width 2: "\x{219F}"
>         RenderText {#text} at (0,0) size 0x0
>-      RenderBlock {P} at (0,221) size 784x86
>-        RenderMathMLMath {math} at (0,0) size 84x82
>-          RenderMathMLRow {mrow} at (0,0) size 84x82
>-            RenderMathMLOperator {mo} at (0,0) size 84x82
>+      RenderBlock {P} at (0,221) size 784x97
>+        RenderMathMLMath {math} at (0,0) size 94x93
>+          RenderMathMLRow {mrow} at (0,0) size 94x93
>+            RenderMathMLOperator {mo} at (0,0) size 94x93
>               RenderBlock (anonymous) at (0,0) size 10x12
>                 RenderText {#text} at (0,6) size 10x0
>                   text run at (0,6) width 10: "\x{2A1B}"
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index af0e6b01ec3..78e724deb02 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,37 @@
>+2018-12-13  Carlos Garcia Campos  <cgarcia@igalia.com>
>+
>+        [FreeType] Remove HarfBuzzFace
>+        https://bugs.webkit.org/show_bug.cgi?id=192589
>+
>+        Reviewed by Michael Catanzaro.
>+
>+        This was used to share the common implementation with the chromium port, but now that only freetype based ports
>+        use it, it can be removed and use hb_ft_face_create_cached() instead. We don't need the glyph cache either,
>+        since we are already caching glyphs in Font.
>+
>+        * platform/FreeType.cmake: Remove HarfBuzzFaceCairo.cpp and HarfBuzzFace.cpp.
>+        * platform/graphics/FontPlatformData.h: Remove HarfBuzzFace member.
>+        * platform/graphics/freetype/FontCustomPlatformDataFreeType.cpp: Add missing include.
>+        * platform/graphics/freetype/FontPlatformDataFreeType.cpp:
>+        (WebCore::FontPlatformData::operator=): Remove m_harfBuzzFace handling.
>+        (WebCore::FontPlatformData::createOpenTypeMathHarfBuzzFont const): New funtction to create a hb_font_t for
>+        OpenType math.
>+        * platform/graphics/harfbuzz/ComplexTextControllerHarfBuzz.cpp:
>+        (WebCore::floatToHarfBuzzPosition): Moved from HarfBuzzFaceCairo.cpp.
>+        (WebCore::doubleToHarfBuzzPosition): Ditto.
>+        (WebCore::harfBuzzFontFunctions): Also moved from HarfBuzzFaceCairo.cpp, but implement get_nominal/variation
>+        functions when using HarfBuzz >= 1.2.3 and use Font::glyphForCharacter() to make it simpler.
>+        (WebCore::fontFeatures): Moved from HarfBuzzFaceCairo.cpp.
>+        (WebCore::findScriptForVerticalGlyphSubstitution): Moved from HarfBuzzFace.cpp.
>+        (WebCore::ComplexTextController::collectComplexTextRunsForCharacters): Create the HarfBuzz face and font here.
>+        * platform/graphics/harfbuzz/HarfBuzzFace.cpp: Removed.
>+        * platform/graphics/harfbuzz/HarfBuzzFace.h: Removed.
>+        * platform/graphics/harfbuzz/HarfBuzzFaceCairo.cpp: Removed.
>+        * platform/graphics/harfbuzz/HbUniquePtr.h:
>+        (WebCore::HbPtrDeleter<hb_face_t>::operator() const): Add deleter for hb_face_t.
>+        * platform/graphics/opentype/OpenTypeMathData.cpp:
>+        (WebCore::OpenTypeMathData::OpenTypeMathData): Use FontPlatformData::createOpenTypeMathHarfBuzzFont().
>+
> 2018-12-12  Carlos Garcia Campos  <cgarcia@igalia.com>
> 
>         [FreeType] Add initial implementation of variation fonts
>diff --git a/Source/WebCore/platform/FreeType.cmake b/Source/WebCore/platform/FreeType.cmake
>index 98f3ee185c9..c16977f497c 100644
>--- a/Source/WebCore/platform/FreeType.cmake
>+++ b/Source/WebCore/platform/FreeType.cmake
>@@ -11,7 +11,6 @@ list(APPEND WebCore_SOURCES
>     platform/graphics/freetype/SimpleFontDataFreeType.cpp
> 
>     platform/graphics/harfbuzz/ComplexTextControllerHarfBuzz.cpp
>-    platform/graphics/harfbuzz/HarfBuzzFace.cpp
> )
> 
> if (PORT STREQUAL "GTK")
>@@ -27,8 +26,6 @@ endif ()
> if (USE_CAIRO)
>     list(APPEND WebCore_SOURCES
>         platform/graphics/cairo/FontCairoHarfbuzzNG.cpp
>-
>-        platform/graphics/harfbuzz/HarfBuzzFaceCairo.cpp
>     )
> endif ()
> 
>diff --git a/Source/WebCore/platform/graphics/FontPlatformData.h b/Source/WebCore/platform/graphics/FontPlatformData.h
>index bf623add32f..8a17c8be7bd 100644
>--- a/Source/WebCore/platform/graphics/FontPlatformData.h
>+++ b/Source/WebCore/platform/graphics/FontPlatformData.h
>@@ -40,7 +40,7 @@
> 
> #if USE(FREETYPE)
> #include "FcUniquePtr.h"
>-#include "HarfBuzzFace.h"
>+#include "HbUniquePtr.h"
> #include "RefPtrFontconfig.h"
> #include <memory>
> #endif
>@@ -168,7 +168,7 @@ public:
> #endif
> 
> #if USE(FREETYPE)
>-    HarfBuzzFace& harfBuzzFace() const;
>+    HbUniquePtr<hb_font_t> createOpenTypeMathHarfBuzzFont() const;
>     bool hasCompatibleCharmap() const;
>     FcPattern* fcPattern() const;
>     bool isFixedWidth() const { return m_fixedWidth; }
>@@ -249,7 +249,6 @@ private:
> 
> #if USE(FREETYPE)
>     RefPtr<FcPattern> m_pattern;
>-    mutable std::unique_ptr<HarfBuzzFace> m_harfBuzzFace;
> #endif
> 
>     // The values below are common to all ports
>diff --git a/Source/WebCore/platform/graphics/freetype/FontCustomPlatformDataFreeType.cpp b/Source/WebCore/platform/graphics/freetype/FontCustomPlatformDataFreeType.cpp
>index 8821d42a729..13765f43da8 100644
>--- a/Source/WebCore/platform/graphics/freetype/FontCustomPlatformDataFreeType.cpp
>+++ b/Source/WebCore/platform/graphics/freetype/FontCustomPlatformDataFreeType.cpp
>@@ -31,6 +31,7 @@
> #include <cairo.h>
> #include <ft2build.h>
> #include FT_MODULE_H
>+#include <mutex>
> 
> namespace WebCore {
> 
>diff --git a/Source/WebCore/platform/graphics/freetype/FontPlatformDataFreeType.cpp b/Source/WebCore/platform/graphics/freetype/FontPlatformDataFreeType.cpp
>index b46744c0cef..645cd173528 100644
>--- a/Source/WebCore/platform/graphics/freetype/FontPlatformDataFreeType.cpp
>+++ b/Source/WebCore/platform/graphics/freetype/FontPlatformDataFreeType.cpp
>@@ -33,6 +33,8 @@
> #include <fontconfig/fcfreetype.h>
> #include <ft2build.h>
> #include FT_TRUETYPE_TABLES_H
>+#include <hb-ft.h>
>+#include <hb-ot.h>
> #include <wtf/MathExtras.h>
> #include <wtf/text/WTFString.h>
> 
>@@ -144,9 +146,6 @@ FontPlatformData& FontPlatformData::operator=(const FontPlatformData& other)
> 
>     m_scaledFont = other.m_scaledFont;
> 
>-    // This will be re-created on demand.
>-    m_harfBuzzFace = nullptr;
>-
>     return *this;
> }
> 
>@@ -184,13 +183,6 @@ FontPlatformData FontPlatformData::cloneWithSize(const FontPlatformData& source,
>     return copy;
> }
> 
>-HarfBuzzFace& FontPlatformData::harfBuzzFace() const
>-{
>-    if (!m_harfBuzzFace)
>-        m_harfBuzzFace = std::make_unique<HarfBuzzFace>(const_cast<FontPlatformData&>(*this), hash());
>-    return *m_harfBuzzFace;
>-}
>-
> FcPattern* FontPlatformData::fcPattern() const
> {
>     return m_pattern.get();
>@@ -304,4 +296,18 @@ RefPtr<SharedBuffer> FontPlatformData::openTypeTable(uint32_t table) const
>     return SharedBuffer::create(WTFMove(data));
> }
> 
>+HbUniquePtr<hb_font_t> FontPlatformData::createOpenTypeMathHarfBuzzFont() const
>+{
>+    CairoFtFaceLocker cairoFtFaceLocker(m_scaledFont.get());
>+    FT_Face ftFace = cairoFtFaceLocker.ftFace();
>+    if (!ftFace)
>+        return nullptr;
>+
>+    HbUniquePtr<hb_face_t> face(hb_ft_face_create_cached(ftFace));
>+    if (!hb_ot_math_has_data(face.get()))
>+        return nullptr;
>+
>+    return HbUniquePtr<hb_font_t>(hb_font_create(face.get()));
>+}
>+
> } // namespace WebCore
>diff --git a/Source/WebCore/platform/graphics/harfbuzz/ComplexTextControllerHarfBuzz.cpp b/Source/WebCore/platform/graphics/harfbuzz/ComplexTextControllerHarfBuzz.cpp
>index 27123d3b680..44226972e47 100644
>--- a/Source/WebCore/platform/graphics/harfbuzz/ComplexTextControllerHarfBuzz.cpp
>+++ b/Source/WebCore/platform/graphics/harfbuzz/ComplexTextControllerHarfBuzz.cpp
>@@ -26,10 +26,17 @@
> #include "config.h"
> #include "ComplexTextController.h"
> 
>+#include "CairoUtilities.h"
> #include "FontCascade.h"
> #include "HbUniquePtr.h"
> #include "SurrogatePairAwareTextIterator.h"
>+#include <hb-ft.h>
> #include <hb-icu.h>
>+#include <hb-ot.h>
>+
>+#if ENABLE(VARIATION_FONTS)
>+#include FT_MULTIPLE_MASTERS_H
>+#endif
> 
> namespace WebCore {
> 
>@@ -38,6 +45,90 @@ static inline float harfBuzzPositionToFloat(hb_position_t value)
>     return static_cast<float>(value) / (1 << 16);
> }
> 
>+static inline hb_position_t floatToHarfBuzzPosition(float value)
>+{
>+    return static_cast<hb_position_t>(value * (1 << 16));
>+}
>+
>+static inline hb_position_t doubleToHarfBuzzPosition(double value)
>+{
>+    return static_cast<hb_position_t>(value * (1 << 16));
>+}
>+
>+static hb_font_funcs_t* harfBuzzFontFunctions()
>+{
>+    static hb_font_funcs_t* fontFunctions = nullptr;
>+
>+    // We don't set callback functions which we can't support.
>+    // Harfbuzz will use the fallback implementation if they aren't set.
>+    if (!fontFunctions) {
>+        fontFunctions = hb_font_funcs_create();
>+#if HB_VERSION_ATLEAST(1, 2, 3)
>+        hb_font_funcs_set_nominal_glyph_func(fontFunctions, [](hb_font_t*, void* context, hb_codepoint_t unicode, hb_codepoint_t* glyph, void*) -> hb_bool_t {
>+            auto& font = *static_cast<Font*>(context);
>+            *glyph = font.glyphForCharacter(unicode);
>+            return !!*glyph;
>+        }, nullptr, nullptr);
>+
>+        hb_font_funcs_set_variation_glyph_func(fontFunctions, [](hb_font_t*, void* context, hb_codepoint_t unicode, hb_codepoint_t variation, hb_codepoint_t* glyph, void*) -> hb_bool_t {
>+            auto& font = *static_cast<Font*>(context);
>+            auto* scaledFont = font.platformData().scaledFont();
>+            ASSERT(scaledFont);
>+
>+            CairoFtFaceLocker cairoFtFaceLocker(scaledFont);
>+            if (FT_Face ftFace = cairoFtFaceLocker.ftFace()) {
>+                *glyph = FT_Face_GetCharVariantIndex(ftFace, unicode, variation);
>+                return true;
>+            }
>+            return false;
>+            }, nullptr, nullptr);
>+#else
>+        hb_font_funcs_set_glyph_func(fontFunctions, [](hb_font_t*, void* context, hb_codepoint_t unicode, hb_codepoint_t, hb_codepoint_t* glyph, void*) -> hb_bool_t {
>+            auto& font = *static_cast<Font*>(context);
>+            *glyph = font.glyphForCharacter(unicode);
>+            return !!*glyph;
>+        }, nullptr, nullptr);
>+#endif
>+        hb_font_funcs_set_glyph_h_advance_func(fontFunctions, [](hb_font_t*, void* context, hb_codepoint_t point, void*) -> hb_bool_t {
>+            auto& font = *static_cast<Font*>(context);
>+            auto* scaledFont = font.platformData().scaledFont();
>+            ASSERT(scaledFont);
>+
>+            cairo_text_extents_t glyphExtents;
>+            cairo_glyph_t glyph = { point, 0, 0 };
>+            cairo_scaled_font_glyph_extents(scaledFont, &glyph, 1, &glyphExtents);
>+
>+            bool hasVerticalGlyphs = glyphExtents.y_advance;
>+            return doubleToHarfBuzzPosition(hasVerticalGlyphs ? -glyphExtents.y_advance : glyphExtents.x_advance);
>+        }, nullptr, nullptr);
>+
>+        hb_font_funcs_set_glyph_h_origin_func(fontFunctions, [](hb_font_t*, void*, hb_codepoint_t, hb_position_t*, hb_position_t*, void*) -> hb_bool_t {
>+            // Just return true, following the way that Harfbuzz-FreeType implementation does.
>+            return true;
>+        }, nullptr, nullptr);
>+
>+        hb_font_funcs_set_glyph_extents_func(fontFunctions, [](hb_font_t*, void* context, hb_codepoint_t point, hb_glyph_extents_t* extents, void*) -> hb_bool_t {
>+            auto& font = *static_cast<Font*>(context);
>+            auto* scaledFont = font.platformData().scaledFont();
>+            ASSERT(scaledFont);
>+
>+            cairo_text_extents_t glyphExtents;
>+            cairo_glyph_t glyph = { point, 0, 0 };
>+            cairo_scaled_font_glyph_extents(scaledFont, &glyph, 1, &glyphExtents);
>+
>+            bool hasVerticalGlyphs = glyphExtents.y_advance;
>+            extents->x_bearing = doubleToHarfBuzzPosition(glyphExtents.x_bearing);
>+            extents->y_bearing = doubleToHarfBuzzPosition(hasVerticalGlyphs ? -glyphExtents.y_bearing : glyphExtents.y_bearing);
>+            extents->width = doubleToHarfBuzzPosition(hasVerticalGlyphs ? -glyphExtents.height : glyphExtents.width);
>+            extents->height = doubleToHarfBuzzPosition(hasVerticalGlyphs ? glyphExtents.width : glyphExtents.height);
>+            return true;
>+        }, nullptr, nullptr);
>+
>+        hb_font_funcs_make_immutable(fontFunctions);
>+    }
>+    return fontFunctions;
>+}
>+
> ComplexTextController::ComplexTextRun::ComplexTextRun(hb_buffer_t* buffer, const Font& font, const UChar* characters, unsigned stringLocation, unsigned stringLength, unsigned indexBegin, unsigned indexEnd)
>     : m_initialAdvance(0, 0)
>     , m_font(font)
>@@ -83,25 +174,28 @@ ComplexTextController::ComplexTextRun::ComplexTextRun(hb_buffer_t* buffer, const
>     }
> }
> 
>-static const unsigned hbEnd = static_cast<unsigned>(-1);
>+static const hb_tag_t s_vertTag = HB_TAG('v', 'e', 'r', 't');
>+static const hb_tag_t s_vrt2Tag = HB_TAG('v', 'r', 't', '2');
>+static const hb_tag_t s_kernTag = HB_TAG('k', 'e', 'r', 'n');
>+static const unsigned s_hbEnd = static_cast<unsigned>(-1);
> 
> static Vector<hb_feature_t, 4> fontFeatures(const FontCascade& font, FontOrientation orientation)
> {
>     Vector<hb_feature_t, 4> features;
> 
>     if (orientation == FontOrientation::Vertical) {
>-        features.append({ HarfBuzzFace::vertTag, 1, 0, hbEnd });
>-        features.append({ HarfBuzzFace::vrt2Tag, 1, 0, hbEnd });
>+        features.append({ s_vertTag, 1, 0, s_hbEnd });
>+        features.append({ s_vrt2Tag, 1, 0, s_hbEnd });
>     }
> 
>-    hb_feature_t kerning = { HarfBuzzFace::kernTag, 0, 0, hbEnd };
>+    hb_feature_t kerning = { s_kernTag, 0, 0, s_hbEnd };
>     if (font.enableKerning())
>         kerning.value = 1;
>     features.append(WTFMove(kerning));
> 
>     for (auto& feature : font.fontDescription().featureSettings()) {
>         auto& tag = feature.tag();
>-        features.append({ HB_TAG(tag[0], tag[1], tag[2], tag[3]), static_cast<uint32_t>(feature.value()), 0, hbEnd });
>+        features.append({ HB_TAG(tag[0], tag[1], tag[2], tag[3]), static_cast<uint32_t>(feature.value()), 0, s_hbEnd });
>     }
> 
>     return features;
>@@ -168,6 +262,27 @@ static std::optional<HBRun> findNextRun(const UChar* characters, unsigned length
>     return std::optional<HBRun>({ startIndex, textIterator.currentIndex(), currentScript.value() });
> }
> 
>+static hb_script_t findScriptForVerticalGlyphSubstitution(hb_face_t* face)
>+{
>+    static const unsigned maxCount = 32;
>+
>+    unsigned scriptCount = maxCount;
>+    hb_tag_t scriptTags[maxCount];
>+    hb_ot_layout_table_get_script_tags(face, HB_OT_TAG_GSUB, 0, &scriptCount, scriptTags);
>+    for (unsigned scriptIndex = 0; scriptIndex < scriptCount; ++scriptIndex) {
>+        unsigned languageCount = maxCount;
>+        hb_tag_t languageTags[maxCount];
>+        hb_ot_layout_script_get_language_tags(face, HB_OT_TAG_GSUB, scriptIndex, 0, &languageCount, languageTags);
>+        for (unsigned languageIndex = 0; languageIndex < languageCount; ++languageIndex) {
>+            unsigned featureIndex;
>+            if (hb_ot_layout_language_find_feature(face, HB_OT_TAG_GSUB, scriptIndex, languageIndex, s_vertTag, &featureIndex)
>+                || hb_ot_layout_language_find_feature(face, HB_OT_TAG_GSUB, scriptIndex, languageIndex, s_vrt2Tag, &featureIndex))
>+                return hb_ot_tag_to_script(scriptTags[scriptIndex]);
>+        }
>+    }
>+    return HB_SCRIPT_INVALID;
>+}
>+
> void ComplexTextController::collectComplexTextRunsForCharacters(const UChar* characters, unsigned length, unsigned stringLocation, const Font* font)
> {
>     if (!font) {
>@@ -191,13 +306,50 @@ void ComplexTextController::collectComplexTextRunsForCharacters(const UChar* cha
>         return;
> 
>     const auto& fontPlatformData = font->platformData();
>+    auto* scaledFont = fontPlatformData.scaledFont();
>+    CairoFtFaceLocker cairoFtFaceLocker(scaledFont);
>+    FT_Face ftFace = cairoFtFaceLocker.ftFace();
>+    if (!ftFace)
>+        return;
>+
>+    HbUniquePtr<hb_face_t> face(hb_ft_face_create_cached(ftFace));
>+    HbUniquePtr<hb_font_t> harfBuzzFont(hb_font_create(face.get()));
>+    hb_font_set_funcs(harfBuzzFont.get(), harfBuzzFontFunctions(), const_cast<Font*>(font), nullptr);
>+    const float size = fontPlatformData.size();
>+    if (floorf(size) == size)
>+        hb_font_set_ppem(harfBuzzFont.get(), size, size);
>+    int scale = floatToHarfBuzzPosition(size);
>+    hb_font_set_scale(harfBuzzFont.get(), scale, scale);
>+
>+#if ENABLE(VARIATION_FONTS)
>+    FT_MM_Var* ftMMVar;
>+    if (!FT_Get_MM_Var(ftFace, &ftMMVar)) {
>+        Vector<FT_Fixed, 4> coords;
>+        coords.resize(ftMMVar->num_axis);
>+        if (!FT_Get_Var_Design_Coordinates(ftFace, coords.size(), coords.data())) {
>+            Vector<hb_variation_t, 4> variations(coords.size());
>+            for (FT_UInt i = 0; i < ftMMVar->num_axis; ++i) {
>+                variations[i].tag = ftMMVar->axis[i].tag;
>+                variations[i].value = coords[i] / 65536.0;
>+            }
>+            hb_font_set_variations(harfBuzzFont.get(), variations.data(), variations.size());
>+        }
>+        FT_Done_MM_Var(ftFace->glyph->library, ftMMVar);
>+    }
>+#endif
>+
>+    hb_font_make_immutable(harfBuzzFont.get());
>+
>     auto features = fontFeatures(m_font, fontPlatformData.orientation());
>     HbUniquePtr<hb_buffer_t> buffer(hb_buffer_create());
>+    if (fontPlatformData.orientation() == FontOrientation::Vertical)
>+        hb_buffer_set_script(buffer.get(), findScriptForVerticalGlyphSubstitution(face.get()));
> 
>     for (unsigned i = 0; i < runCount; ++i) {
>         auto& run = runList[m_run.rtl() ? runCount - i - 1 : i];
> 
>-        hb_buffer_set_script(buffer.get(), hb_icu_script_to_script(run.script));
>+        if (fontPlatformData.orientation() != FontOrientation::Vertical)
>+            hb_buffer_set_script(buffer.get(), hb_icu_script_to_script(run.script));
>         if (!m_mayUseNaturalWritingDirection || m_run.directionalOverride())
>             hb_buffer_set_direction(buffer.get(), m_run.rtl() ? HB_DIRECTION_RTL : HB_DIRECTION_LTR);
>         else {
>@@ -206,11 +358,6 @@ void ComplexTextController::collectComplexTextRunsForCharacters(const UChar* cha
>         }
>         hb_buffer_add_utf16(buffer.get(), reinterpret_cast<const uint16_t*>(characters), length, run.startIndex, run.endIndex - run.startIndex);
> 
>-        auto& face = fontPlatformData.harfBuzzFace();
>-        if (fontPlatformData.orientation() == FontOrientation::Vertical)
>-            face.setScriptForVerticalGlyphSubstitution(buffer.get());
>-
>-        HbUniquePtr<hb_font_t> harfBuzzFont(face.createFont());
>         hb_shape(harfBuzzFont.get(), buffer.get(), features.isEmpty() ? nullptr : features.data(), features.size());
>         m_complexTextRuns.append(ComplexTextRun::create(buffer.get(), *font, characters, stringLocation, length, run.startIndex, run.endIndex));
>         hb_buffer_reset(buffer.get());
>diff --git a/Source/WebCore/platform/graphics/harfbuzz/HarfBuzzFace.cpp b/Source/WebCore/platform/graphics/harfbuzz/HarfBuzzFace.cpp
>deleted file mode 100644
>index 45691d8335c..00000000000
>--- a/Source/WebCore/platform/graphics/harfbuzz/HarfBuzzFace.cpp
>+++ /dev/null
>@@ -1,118 +0,0 @@
>-/*
>- * Copyright (c) 2012 Google Inc. All rights reserved.
>- *
>- * Redistribution and use in source and binary forms, with or without
>- * modification, are permitted provided that the following conditions are
>- * met:
>- *
>- *     * Redistributions of source code must retain the above copyright
>- * notice, this list of conditions and the following disclaimer.
>- *     * Redistributions in binary form must reproduce the above
>- * copyright notice, this list of conditions and the following disclaimer
>- * in the documentation and/or other materials provided with the
>- * distribution.
>- *     * Neither the name of Google Inc. nor the names of its
>- * contributors may be used to endorse or promote products derived from
>- * this software without specific prior written permission.
>- *
>- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
>- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
>- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>- */
>-
>-#include "config.h"
>-#include "HarfBuzzFace.h"
>-
>-#include "FontPlatformData.h"
>-#include <hb-ot.h>
>-#include <hb.h>
>-#include <wtf/NeverDestroyed.h>
>-
>-namespace WebCore {
>-
>-const hb_tag_t HarfBuzzFace::vertTag = HB_TAG('v', 'e', 'r', 't');
>-const hb_tag_t HarfBuzzFace::vrt2Tag = HB_TAG('v', 'r', 't', '2');
>-const hb_tag_t HarfBuzzFace::kernTag = HB_TAG('k', 'e', 'r', 'n');
>-
>-// Though we have FontCache class, which provides the cache mechanism for
>-// WebKit's font objects, we also need additional caching layer for HarfBuzz
>-// to reduce the memory consumption because hb_face_t should be associated with
>-// underling font data (e.g. CTFontRef, FTFace).
>-
>-HarfBuzzFace::CacheEntry::CacheEntry(hb_face_t* face)
>-    : m_face(face)
>-{
>-    ASSERT(m_face);
>-}
>-
>-HarfBuzzFace::CacheEntry::~CacheEntry()
>-{
>-    hb_face_destroy(m_face);
>-}
>-
>-HarfBuzzFace::Cache& HarfBuzzFace::cache()
>-{
>-    static NeverDestroyed<Cache> s_cache;
>-    return s_cache;
>-}
>-
>-HarfBuzzFace::HarfBuzzFace(FontPlatformData& platformData, uint64_t uniqueID)
>-    : m_platformData(platformData)
>-    , m_uniqueID(uniqueID)
>-    , m_scriptForVerticalText(HB_SCRIPT_INVALID)
>-{
>-    auto result = cache().add(m_uniqueID, nullptr);
>-    if (result.isNewEntry)
>-        result.iterator->value = CacheEntry::create(createFace());
>-    m_cacheEntry = result.iterator->value;
>-}
>-
>-HarfBuzzFace::~HarfBuzzFace()
>-{
>-    auto it = cache().find(m_uniqueID);
>-    ASSERT(it != cache().end());
>-    ASSERT(it->value == m_cacheEntry);
>-    ASSERT(it->value->refCount() > 1);
>-
>-    m_cacheEntry = nullptr;
>-    if (it->value->refCount() == 1)
>-        cache().remove(it);
>-}
>-
>-static hb_script_t findScriptForVerticalGlyphSubstitution(hb_face_t* face)
>-{
>-    static const unsigned maxCount = 32;
>-
>-    unsigned scriptCount = maxCount;
>-    hb_tag_t scriptTags[maxCount];
>-    hb_ot_layout_table_get_script_tags(face, HB_OT_TAG_GSUB, 0, &scriptCount, scriptTags);
>-    for (unsigned scriptIndex = 0; scriptIndex < scriptCount; ++scriptIndex) {
>-        unsigned languageCount = maxCount;
>-        hb_tag_t languageTags[maxCount];
>-        hb_ot_layout_script_get_language_tags(face, HB_OT_TAG_GSUB, scriptIndex, 0, &languageCount, languageTags);
>-        for (unsigned languageIndex = 0; languageIndex < languageCount; ++languageIndex) {
>-            unsigned featureIndex;
>-            if (hb_ot_layout_language_find_feature(face, HB_OT_TAG_GSUB, scriptIndex, languageIndex, HarfBuzzFace::vertTag, &featureIndex)
>-                || hb_ot_layout_language_find_feature(face, HB_OT_TAG_GSUB, scriptIndex, languageIndex, HarfBuzzFace::vrt2Tag, &featureIndex))
>-                return hb_ot_tag_to_script(scriptTags[scriptIndex]);
>-        }
>-    }
>-    return HB_SCRIPT_INVALID;
>-}
>-
>-void HarfBuzzFace::setScriptForVerticalGlyphSubstitution(hb_buffer_t* buffer)
>-{
>-    if (m_scriptForVerticalText == HB_SCRIPT_INVALID)
>-        m_scriptForVerticalText = findScriptForVerticalGlyphSubstitution(m_cacheEntry->face());
>-    hb_buffer_set_script(buffer, m_scriptForVerticalText);
>-}
>-
>-} // namespace WebCore
>diff --git a/Source/WebCore/platform/graphics/harfbuzz/HarfBuzzFace.h b/Source/WebCore/platform/graphics/harfbuzz/HarfBuzzFace.h
>deleted file mode 100644
>index 006d5f7bca8..00000000000
>--- a/Source/WebCore/platform/graphics/harfbuzz/HarfBuzzFace.h
>+++ /dev/null
>@@ -1,94 +0,0 @@
>-/*
>- * Copyright (c) 2012 Google Inc. All rights reserved.
>- *
>- * Redistribution and use in source and binary forms, with or without
>- * modification, are permitted provided that the following conditions are
>- * met:
>- *
>- *     * Redistributions of source code must retain the above copyright
>- * notice, this list of conditions and the following disclaimer.
>- *     * Redistributions in binary form must reproduce the above
>- * copyright notice, this list of conditions and the following disclaimer
>- * in the documentation and/or other materials provided with the
>- * distribution.
>- *     * Neither the name of Google Inc. nor the names of its
>- * contributors may be used to endorse or promote products derived from
>- * this software without specific prior written permission.
>- *
>- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
>- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
>- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>- */
>-
>-#ifndef HarfBuzzFace_h
>-#define HarfBuzzFace_h
>-
>-#include <hb.h>
>-
>-#include <memory>
>-#include <wtf/FastMalloc.h>
>-#include <wtf/HashMap.h>
>-#include <wtf/Ref.h>
>-#include <wtf/RefCounted.h>
>-
>-namespace WebCore {
>-
>-class FontPlatformData;
>-
>-class HarfBuzzFace {
>-    WTF_MAKE_FAST_ALLOCATED;
>-public:
>-    static const hb_tag_t vertTag;
>-    static const hb_tag_t vrt2Tag;
>-    static const hb_tag_t kernTag;
>-
>-    HarfBuzzFace(FontPlatformData&, uint64_t);
>-    ~HarfBuzzFace();
>-
>-    hb_font_t* createFont();
>-
>-    void setScriptForVerticalGlyphSubstitution(hb_buffer_t*);
>-
>-    using GlyphCache = HashMap<uint32_t, uint32_t, DefaultHash<uint32_t>::Hash, WTF::UnsignedWithZeroKeyHashTraits<uint32_t>>;
>-private:
>-    class CacheEntry : public RefCounted<CacheEntry> {
>-    public:
>-        static Ref<CacheEntry> create(hb_face_t* face)
>-        {
>-            return adoptRef(*new CacheEntry(face));
>-        }
>-        ~CacheEntry();
>-
>-        hb_face_t* face() { return m_face; }
>-        GlyphCache& glyphCache() { return m_glyphCache; }
>-
>-    private:
>-        CacheEntry(hb_face_t*);
>-
>-        hb_face_t* m_face;
>-        GlyphCache m_glyphCache;
>-    };
>-
>-    using Cache = HashMap<uint64_t, RefPtr<CacheEntry>, WTF::IntHash<uint64_t>, WTF::UnsignedWithZeroKeyHashTraits<uint64_t>>;
>-    static Cache& cache();
>-
>-    hb_face_t* createFace();
>-
>-    FontPlatformData& m_platformData;
>-    uint64_t m_uniqueID;
>-    RefPtr<CacheEntry> m_cacheEntry;
>-
>-    hb_script_t m_scriptForVerticalText;
>-};
>-
>-}
>-
>-#endif // HarfBuzzFace_h
>diff --git a/Source/WebCore/platform/graphics/harfbuzz/HarfBuzzFaceCairo.cpp b/Source/WebCore/platform/graphics/harfbuzz/HarfBuzzFaceCairo.cpp
>deleted file mode 100644
>index d54b5894aab..00000000000
>--- a/Source/WebCore/platform/graphics/harfbuzz/HarfBuzzFaceCairo.cpp
>+++ /dev/null
>@@ -1,247 +0,0 @@
>-/*
>- * Copyright (c) 2012 Google Inc. All rights reserved.
>- * Copyright (c) 2012 Intel Corporation
>- *
>- * Redistribution and use in source and binary forms, with or without
>- * modification, are permitted provided that the following conditions are
>- * met:
>- *
>- *     * Redistributions of source code must retain the above copyright
>- * notice, this list of conditions and the following disclaimer.
>- *     * Redistributions in binary form must reproduce the above
>- * copyright notice, this list of conditions and the following disclaimer
>- * in the documentation and/or other materials provided with the
>- * distribution.
>- *     * Neither the name of Google Inc. nor the names of its
>- * contributors may be used to endorse or promote products derived from
>- * this software without specific prior written permission.
>- *
>- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
>- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
>- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
>- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
>- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
>- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
>- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>- */
>-
>-#include "config.h"
>-#include "HarfBuzzFace.h"
>-
>-#include "CairoUtilities.h"
>-#include "Font.h"
>-#include "FontCascade.h"
>-#include "FontPlatformData.h"
>-#include "GlyphBuffer.h"
>-#include "TextEncoding.h"
>-#include <cairo-ft.h>
>-#include <cairo.h>
>-#include <ft2build.h>
>-#include FT_FREETYPE_H
>-#include FT_TRUETYPE_TABLES_H
>-#include <hb.h>
>-#include <wtf/text/CString.h>
>-#include <wtf/text/StringView.h>
>-
>-#if ENABLE(VARIATION_FONTS)
>-#include FT_MULTIPLE_MASTERS_H
>-#endif
>-
>-namespace WebCore {
>-
>-struct HarfBuzzFontData {
>-    HarfBuzzFace::GlyphCache& glyphCacheForFaceCacheEntry;
>-    RefPtr<cairo_scaled_font_t> cairoScaledFont;
>-};
>-
>-static hb_position_t floatToHarfBuzzPosition(float value)
>-{
>-    return static_cast<hb_position_t>(value * (1 << 16));
>-}
>-
>-static hb_position_t doubleToHarfBuzzPosition(double value)
>-{
>-    return static_cast<hb_position_t>(value * (1 << 16));
>-}
>-
>-static void CairoGetGlyphWidthAndExtents(cairo_scaled_font_t* scaledFont, hb_codepoint_t codepoint, hb_position_t* advance, hb_glyph_extents_t* extents)
>-{
>-    cairo_text_extents_t glyphExtents;
>-    cairo_glyph_t glyph;
>-    glyph.index = codepoint;
>-    glyph.x = 0;
>-    glyph.y = 0;
>-    cairo_scaled_font_glyph_extents(scaledFont, &glyph, 1, &glyphExtents);
>-
>-    bool hasVerticalGlyphs = glyphExtents.y_advance;
>-    if (advance)
>-        *advance = doubleToHarfBuzzPosition(hasVerticalGlyphs ? -glyphExtents.y_advance : glyphExtents.x_advance);
>-
>-    if (extents) {
>-        extents->x_bearing = doubleToHarfBuzzPosition(glyphExtents.x_bearing);
>-        extents->y_bearing = doubleToHarfBuzzPosition(hasVerticalGlyphs ? -glyphExtents.y_bearing : glyphExtents.y_bearing);
>-        extents->width = doubleToHarfBuzzPosition(hasVerticalGlyphs ? -glyphExtents.height : glyphExtents.width);
>-        extents->height = doubleToHarfBuzzPosition(hasVerticalGlyphs ? glyphExtents.width : glyphExtents.height);
>-    }
>-}
>-
>-static hb_bool_t harfBuzzGetGlyph(hb_font_t*, void* fontData, hb_codepoint_t unicode, hb_codepoint_t, hb_codepoint_t* glyph, void*)
>-{
>-    auto& hbFontData = *static_cast<HarfBuzzFontData*>(fontData);
>-    auto* scaledFont = hbFontData.cairoScaledFont.get();
>-    ASSERT(scaledFont);
>-
>-    auto result = hbFontData.glyphCacheForFaceCacheEntry.add(unicode, 0);
>-    if (result.isNewEntry) {
>-        cairo_glyph_t* glyphs = 0;
>-        int numGlyphs = 0;
>-        char buffer[U8_MAX_LENGTH];
>-        size_t bufferLength = 0;
>-        if (FontCascade::treatAsSpace(unicode) && unicode != '\t')
>-            unicode = ' ';
>-        else if (FontCascade::treatAsZeroWidthSpaceInComplexScript(unicode))
>-            unicode = zeroWidthSpace;
>-        U8_APPEND_UNSAFE(buffer, bufferLength, unicode);
>-        if (cairo_scaled_font_text_to_glyphs(scaledFont, 0, 0, buffer, bufferLength, &glyphs, &numGlyphs, nullptr, nullptr, nullptr) != CAIRO_STATUS_SUCCESS || !numGlyphs)
>-            return false;
>-        result.iterator->value = glyphs[0].index;
>-        cairo_glyph_free(glyphs);
>-    }
>-    *glyph = result.iterator->value;
>-    return !!*glyph;
>-}
>-
>-static hb_position_t harfBuzzGetGlyphHorizontalAdvance(hb_font_t*, void* fontData, hb_codepoint_t glyph, void*)
>-{
>-    auto& hbFontData = *static_cast<HarfBuzzFontData*>(fontData);
>-    auto* scaledFont = hbFontData.cairoScaledFont.get();
>-    ASSERT(scaledFont);
>-
>-    hb_position_t advance = 0;
>-    CairoGetGlyphWidthAndExtents(scaledFont, glyph, &advance, 0);
>-    return advance;
>-}
>-
>-static hb_bool_t harfBuzzGetGlyphHorizontalOrigin(hb_font_t*, void*, hb_codepoint_t, hb_position_t*, hb_position_t*, void*)
>-{
>-    // Just return true, following the way that Harfbuzz-FreeType
>-    // implementation does.
>-    return true;
>-}
>-
>-static hb_bool_t harfBuzzGetGlyphExtents(hb_font_t*, void* fontData, hb_codepoint_t glyph, hb_glyph_extents_t* extents, void*)
>-{
>-    auto& hbFontData = *static_cast<HarfBuzzFontData*>(fontData);
>-    auto* scaledFont = hbFontData.cairoScaledFont.get();
>-    ASSERT(scaledFont);
>-
>-    CairoGetGlyphWidthAndExtents(scaledFont, glyph, 0, extents);
>-    return true;
>-}
>-
>-static hb_font_funcs_t* harfBuzzCairoTextGetFontFuncs()
>-{
>-    static hb_font_funcs_t* harfBuzzCairoFontFuncs = 0;
>-
>-    // We don't set callback functions which we can't support.
>-    // Harfbuzz will use the fallback implementation if they aren't set.
>-    if (!harfBuzzCairoFontFuncs) {
>-        harfBuzzCairoFontFuncs = hb_font_funcs_create();
>-        hb_font_funcs_set_glyph_func(harfBuzzCairoFontFuncs, harfBuzzGetGlyph, 0, 0);
>-        hb_font_funcs_set_glyph_h_advance_func(harfBuzzCairoFontFuncs, harfBuzzGetGlyphHorizontalAdvance, 0, 0);
>-        hb_font_funcs_set_glyph_h_origin_func(harfBuzzCairoFontFuncs, harfBuzzGetGlyphHorizontalOrigin, 0, 0);
>-        hb_font_funcs_set_glyph_extents_func(harfBuzzCairoFontFuncs, harfBuzzGetGlyphExtents, 0, 0);
>-        hb_font_funcs_make_immutable(harfBuzzCairoFontFuncs);
>-    }
>-    return harfBuzzCairoFontFuncs;
>-}
>-
>-static hb_blob_t* harfBuzzCairoGetTable(hb_face_t*, hb_tag_t tag, void* userData)
>-{
>-    auto* scaledFont = static_cast<cairo_scaled_font_t*>(userData);
>-    if (!scaledFont)
>-        return 0;
>-
>-    CairoFtFaceLocker cairoFtFaceLocker(scaledFont);
>-    FT_Face ftFont = cairoFtFaceLocker.ftFace();
>-    if (!ftFont)
>-        return nullptr;
>-
>-    FT_ULong tableSize = 0;
>-    FT_Error error = FT_Load_Sfnt_Table(ftFont, tag, 0, 0, &tableSize);
>-    if (error)
>-        return 0;
>-
>-    FT_Byte* buffer = reinterpret_cast<FT_Byte*>(fastMalloc(tableSize));
>-    if (!buffer)
>-        return 0;
>-    FT_ULong expectedTableSize = tableSize;
>-    error = FT_Load_Sfnt_Table(ftFont, tag, 0, buffer, &tableSize);
>-    if (error || tableSize != expectedTableSize) {
>-        fastFree(buffer);
>-        return 0;
>-    }
>-
>-    return hb_blob_create(reinterpret_cast<const char*>(buffer), tableSize, HB_MEMORY_MODE_WRITABLE, buffer, fastFree);
>-}
>-
>-hb_face_t* HarfBuzzFace::createFace()
>-{
>-    auto* scaledFont = m_platformData.scaledFont();
>-    cairo_scaled_font_reference(scaledFont);
>-
>-    hb_face_t* face = hb_face_create_for_tables(harfBuzzCairoGetTable, scaledFont,
>-        [](void* data)
>-        {
>-            cairo_scaled_font_destroy(static_cast<cairo_scaled_font_t*>(data));
>-        });
>-    ASSERT(face);
>-    return face;
>-}
>-
>-hb_font_t* HarfBuzzFace::createFont()
>-{
>-    hb_font_t* font = hb_font_create(m_cacheEntry->face());
>-    hb_font_set_funcs(font, harfBuzzCairoTextGetFontFuncs(), new HarfBuzzFontData { m_cacheEntry->glyphCache(), m_platformData.scaledFont() },
>-        [](void* data)
>-        {
>-            delete static_cast<HarfBuzzFontData*>(data);
>-        });
>-
>-    const float size = m_platformData.size();
>-    if (floorf(size) == size)
>-        hb_font_set_ppem(font, size, size);
>-    int scale = floatToHarfBuzzPosition(size);
>-    hb_font_set_scale(font, scale, scale);
>-
>-#if ENABLE(VARIATION_FONTS)
>-    {
>-        CairoFtFaceLocker cairoFtFaceLocker(m_platformData.scaledFont());
>-        if (FT_Face face = cairoFtFaceLocker.ftFace()) {
>-            FT_MM_Var* ftMMVar;
>-            if (!FT_Get_MM_Var(face, &ftMMVar)) {
>-                Vector<FT_Fixed, 4> coords;
>-                coords.resize(ftMMVar->num_axis);
>-                if (!FT_Get_Var_Design_Coordinates(face, coords.size(), coords.data())) {
>-                    Vector<hb_variation_t, 4> variations(coords.size());
>-                    for (FT_UInt i = 0; i < ftMMVar->num_axis; ++i) {
>-                        variations[i].tag = ftMMVar->axis[i].tag;
>-                        variations[i].value = coords[i] / 65536.0;
>-                    }
>-                    hb_font_set_variations(font, variations.data(), variations.size());
>-                }
>-                FT_Done_MM_Var(face->glyph->library, ftMMVar);
>-            }
>-        }
>-    }
>-#endif
>-
>-    hb_font_make_immutable(font);
>-    return font;
>-}
>-
>-} // namespace WebCore
>diff --git a/Source/WebCore/platform/graphics/harfbuzz/HbUniquePtr.h b/Source/WebCore/platform/graphics/harfbuzz/HbUniquePtr.h
>index eab95c63dd9..0d6f293e755 100644
>--- a/Source/WebCore/platform/graphics/harfbuzz/HbUniquePtr.h
>+++ b/Source/WebCore/platform/graphics/harfbuzz/HbUniquePtr.h
>@@ -52,6 +52,13 @@ template<> struct HbPtrDeleter<hb_buffer_t> {
>     }
> };
> 
>+template<> struct HbPtrDeleter<hb_face_t> {
>+    void operator()(hb_face_t* ptr) const
>+    {
>+        hb_face_destroy(ptr);
>+    }
>+};
>+
> } // namespace WebCore
> 
> using WebCore::HbUniquePtr;
>diff --git a/Source/WebCore/platform/graphics/opentype/OpenTypeMathData.cpp b/Source/WebCore/platform/graphics/opentype/OpenTypeMathData.cpp
>index 766d24633e3..5d88cd77689 100644
>--- a/Source/WebCore/platform/graphics/opentype/OpenTypeMathData.cpp
>+++ b/Source/WebCore/platform/graphics/opentype/OpenTypeMathData.cpp
>@@ -34,7 +34,6 @@
> #endif
> #include "SharedBuffer.h"
> 
>-
> namespace WebCore {
> using namespace std;
> 
>@@ -257,10 +256,8 @@ OpenTypeMathData::OpenTypeMathData(const FontPlatformData& font)
> }
> #elif USE(HARFBUZZ)
> OpenTypeMathData::OpenTypeMathData(const FontPlatformData& font)
>-    : m_mathFont(font.harfBuzzFace().createFont())
>+    : m_mathFont(font.createOpenTypeMathHarfBuzzFont())
> {
>-    if (!hb_ot_math_has_data(hb_font_get_face(m_mathFont.get())))
>-        m_mathFont = nullptr;
> }
> #elif USE(DIRECT2D)
> OpenTypeMathData::OpenTypeMathData(const FontPlatformData& font)
>@@ -296,13 +293,13 @@ float OpenTypeMathData::getMathConstant(const Font& font, MathConstant constant)
> 
>     return value * font.sizePerUnit();
> #elif USE(HARFBUZZ)
>-float OpenTypeMathData::getMathConstant(const Font&, MathConstant constant) const
>+float OpenTypeMathData::getMathConstant(const Font& font, MathConstant constant) const
> {
>     hb_position_t value = hb_ot_math_get_constant(m_mathFont.get(), static_cast<hb_ot_math_constant_t>(constant));
>     if (constant == ScriptPercentScaleDown || constant == ScriptScriptPercentScaleDown || constant == RadicalDegreeBottomRaisePercent)
>         return value / 100.0;
> 
>-    return value / 65536.0;
>+    return value * font.sizePerUnit();
> #else
> float OpenTypeMathData::getMathConstant(const Font&, MathConstant) const
> {
>@@ -326,9 +323,9 @@ float OpenTypeMathData::getItalicCorrection(const Font& font, Glyph glyph) const
> 
>     return mathItalicsCorrectionInfo->getItalicCorrection(*m_mathBuffer, glyph) * font.sizePerUnit();
> #elif USE(HARFBUZZ)
>-float OpenTypeMathData::getItalicCorrection(const Font&, Glyph glyph) const
>+float OpenTypeMathData::getItalicCorrection(const Font& font, Glyph glyph) const
> {
>-    return hb_ot_math_get_glyph_italics_correction(m_mathFont.get(), glyph) / 65536.0;
>+    return hb_ot_math_get_glyph_italics_correction(m_mathFont.get(), glyph) * font.sizePerUnit();
> #else
> float OpenTypeMathData::getItalicCorrection(const Font&, Glyph) const
> {

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Attachments on bug 192589: 357047 | 357219