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diff --git a/gfx/thebes/gfxFT2Fonts.h b/gfx/thebes/gfxFT2Fonts.h
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+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GFX_FT2FONTS_H
+#define GFX_FT2FONTS_H
+
+#include "mozilla/MemoryReporting.h"
+#include "gfxTypes.h"
+#include "gfxFont.h"
+#include "gfxFT2FontBase.h"
+#include "gfxContext.h"
+#include "gfxFontUtils.h"
+#include "gfxUserFontSet.h"
+
+class FT2FontEntry;
+
+class gfxFT2Font final : public gfxFT2FontBase {
+ public: // new functions
+ gfxFT2Font(const RefPtr<mozilla::gfx::UnscaledFontFreeType>& aUnscaledFont,
+ RefPtr<mozilla::gfx::SharedFTFace>&& aFTFace,
+ FT2FontEntry* aFontEntry, const gfxFontStyle* aFontStyle,
+ int aLoadFlags);
+
+ FT2FontEntry* GetFontEntry();
+
+ already_AddRefed<mozilla::gfx::ScaledFont> GetScaledFont(
+ const TextRunDrawParams& aRunParams) override;
+
+ bool ShouldHintMetrics() const override;
+
+ void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,
+ FontCacheSizes* aSizes) const override;
+ void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
+ FontCacheSizes* aSizes) const override;
+
+ protected:
+ ~gfxFT2Font() override;
+
+ struct CachedGlyphData {
+ CachedGlyphData() : glyphIndex(0xffffffffU) {}
+
+ explicit CachedGlyphData(uint32_t gid) : glyphIndex(gid) {}
+
+ uint32_t glyphIndex;
+ int32_t lsbDelta;
+ int32_t rsbDelta;
+ int32_t xAdvance;
+ };
+
+ const CachedGlyphData* GetGlyphDataForChar(FT_Face aFace, uint32_t ch) {
+ CharGlyphMapEntryType* entry = mCharGlyphCache.PutEntry(ch);
+
+ if (!entry) return nullptr;
+
+ if (entry->GetData().glyphIndex == 0xffffffffU) {
+ // this is a new entry, fill it
+ FillGlyphDataForChar(aFace, ch, entry->GetModifiableData());
+ }
+
+ return &entry->GetData();
+ }
+
+ bool ShapeText(DrawTarget* aDrawTarget, const char16_t* aText,
+ uint32_t aOffset, uint32_t aLength, Script aScript,
+ nsAtom* aLanguage, bool aVertical, RoundingFlags aRounding,
+ gfxShapedText* aShapedText) override;
+
+ void FillGlyphDataForChar(FT_Face face, uint32_t ch, CachedGlyphData* gd);
+
+ void AddRange(const char16_t* aText, uint32_t aOffset, uint32_t aLength,
+ gfxShapedText* aShapedText);
+
+ typedef nsBaseHashtableET<nsUint32HashKey, CachedGlyphData>
+ CharGlyphMapEntryType;
+ typedef nsTHashtable<CharGlyphMapEntryType> CharGlyphMap;
+ CharGlyphMap mCharGlyphCache;
+};
+
+#endif /* GFX_FT2FONTS_H */