1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _ANDROID_GRAPHICS_MINIKIN_SKIA_H_ 18 #define _ANDROID_GRAPHICS_MINIKIN_SKIA_H_ 19 20 #include <SkRefCnt.h> 21 #include <cutils/compiler.h> 22 #include <minikin/MinikinFont.h> 23 24 class SkFont; 25 class SkTypeface; 26 27 namespace android { 28 29 class ANDROID_API MinikinFontSkia : public minikin::MinikinFont { 30 public: 31 MinikinFontSkia(sk_sp<SkTypeface> typeface, const void* fontData, size_t fontSize, 32 std::string_view filePath, int ttcIndex, 33 const std::vector<minikin::FontVariation>& axes); 34 35 float GetHorizontalAdvance(uint32_t glyph_id, const minikin::MinikinPaint& paint, 36 const minikin::FontFakery& fakery) const override; 37 38 void GetHorizontalAdvances(uint16_t* glyph_ids, uint32_t count, 39 const minikin::MinikinPaint& paint, 40 const minikin::FontFakery& fakery, 41 float* outAdvances) const override; 42 43 void GetBounds(minikin::MinikinRect* bounds, uint32_t glyph_id, 44 const minikin::MinikinPaint& paint, 45 const minikin::FontFakery& fakery) const override; 46 47 void GetFontExtent(minikin::MinikinExtent* extent, const minikin::MinikinPaint& paint, 48 const minikin::FontFakery& fakery) const override; 49 50 SkTypeface* GetSkTypeface() const; 51 sk_sp<SkTypeface> RefSkTypeface() const; 52 53 // Access to underlying raw font bytes 54 const void* GetFontData() const; 55 size_t GetFontSize() const; 56 int GetFontIndex() const; getFilePath()57 const std::string& getFilePath() const { return mFilePath; } 58 const std::vector<minikin::FontVariation>& GetAxes() const; 59 std::shared_ptr<minikin::MinikinFont> createFontWithVariation( 60 const std::vector<minikin::FontVariation>&) const; 61 62 static uint32_t packFontFlags(const SkFont&); 63 static void unpackFontFlags(SkFont*, uint32_t fontFlags); 64 65 // set typeface and fake bold/italic parameters 66 static void populateSkFont(SkFont*, const minikin::MinikinFont* font, 67 minikin::FontFakery fakery); 68 69 private: 70 sk_sp<SkTypeface> mTypeface; 71 72 // A raw pointer to the font data - it should be owned by some other object with 73 // lifetime at least as long as this object. 74 const void* mFontData; 75 size_t mFontSize; 76 int mTtcIndex; 77 std::vector<minikin::FontVariation> mAxes; 78 std::string mFilePath; 79 }; 80 81 } // namespace android 82 83 #endif // _ANDROID_GRAPHICS_MINIKIN_SKIA_H_ 84