1 /* 2 * Copyright 2024 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef SKFONTSCANNER_FREE_TYPE_PRIV_H_ 9 #define SKFONTSCANNER_FREE_TYPE_PRIV_H_ 10 11 #include "include/core/SkFontScanner.h" 12 #include "include/core/SkTypeface.h" 13 #include "include/core/SkTypes.h" 14 #include "src/ports/SkTypeface_FreeType.h" 15 16 class SkFontScanner_FreeType : public SkFontScanner { 17 public: 18 SkFontScanner_FreeType(); 19 ~SkFontScanner_FreeType() override; 20 21 bool scanFile(SkStreamAsset* stream, int* numFaces) const override; 22 bool scanFace(SkStreamAsset* stream, int faceIndex, int* numInstances) const override; 23 bool scanInstance(SkStreamAsset* stream, 24 int faceIndex, 25 int instanceIndex, 26 SkString* name, 27 SkFontStyle* style, 28 bool* isFixedPitch, 29 AxisDefinitions* axes, 30 VariationPosition* position) const override; 31 sk_sp<SkTypeface> MakeFromStream(std::unique_ptr<SkStreamAsset> stream, 32 const SkFontArguments& args) const override; 33 SkTypeface::FactoryId getFactoryId() const override; 34 static void computeAxisValues( 35 const AxisDefinitions& axisDefinitions, 36 const SkFontArguments::VariationPosition currentPosition, 37 const SkFontArguments::VariationPosition requestedPosition, 38 SkFixed* axisValues, 39 const SkString& name, 40 SkFontStyle* style); 41 private: 42 FT_Face openFace(SkStreamAsset* stream, int ttcIndex, FT_Stream ftStream) const; 43 FT_Library fLibrary; 44 mutable SkMutex fLibraryMutex; 45 }; 46 47 #endif // SKFONTSCANNER_FREE_TYPE_PRIV_H_ 48