/*************************************************************************/ /* dynamic_font_adv.h */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #ifndef DYNAMIC_FONT_ADV_H #define DYNAMIC_FONT_ADV_H #include "font_adv.h" #include #include FT_FREETYPE_H #include FT_TRUETYPE_TABLES_H #include #include struct DynamicFontDataAdvanced : public FontDataAdvanced { _THREAD_SAFE_CLASS_ private: struct CharTexture { Vector imgdata; int texture_size = 0; Vector offsets; Ref texture; }; struct Character { bool found = false; int texture_idx = 0; Rect2 rect; Rect2 rect_uv; Vector2 align; Vector2 advance = Vector2(-1, -1); static Character not_found(); }; struct TexturePosition { int index = 0; int x = 0; int y = 0; }; struct CacheID { union { struct { uint32_t size : 16; uint32_t outline_size : 16; }; uint32_t key; }; bool operator<(CacheID right) const { return key < right.key; } CacheID() { key = 0; } }; struct DataAtSize { FT_Face face = nullptr; TT_OS2 *os2 = nullptr; FT_StreamRec stream; int size = 0; float scale_color_font = 1.f; float ascent = 0; float descent = 0; float underline_position = 0; float underline_thickness = 0; Vector textures; HashMap glyph_map; hb_font_t *hb_handle = nullptr; ~DataAtSize() { if (hb_handle != nullptr) { hb_font_destroy(hb_handle); } if (face != nullptr) { FT_Done_Face(face); } } }; FT_Library library = nullptr; // Source data. const uint8_t *font_mem = nullptr; int font_mem_size = 0; String font_path; Vector font_mem_cache; float rect_margin = 1.f; int base_size = 16; float oversampling = 1.f; bool antialiased = true; bool force_autohinter = false; TextServer::Hinting hinting = TextServer::HINTING_LIGHT; Map size_cache; Map size_cache_outline; DataAtSize *get_data_for_size(int p_size, int p_outline_size = 0); TexturePosition find_texture_pos_for_glyph(DataAtSize *p_data, int p_color_size, Image::Format p_image_format, int p_width, int p_height); Character bitmap_to_character(DataAtSize *p_data, FT_Bitmap bitmap, int yofs, int xofs, const Vector2 &advance); _FORCE_INLINE_ void update_glyph(int p_size, uint32_t p_index); _FORCE_INLINE_ void update_glyph_outline(int p_size, int p_outline_size, uint32_t p_index); public: virtual void clear_cache() override; virtual Error load_from_file(const String &p_filename, int p_base_size) override; virtual Error load_from_memory(const uint8_t *p_data, size_t p_size, int p_base_size) override; virtual float get_height(int p_size) const override; virtual float get_ascent(int p_size) const override; virtual float get_descent(int p_size) const override; virtual Dictionary get_feature_list() const override; virtual float get_underline_position(int p_size) const override; virtual float get_underline_thickness(int p_size) const override; virtual void set_antialiased(bool p_antialiased) override; virtual bool get_antialiased() const override; virtual void set_hinting(TextServer::Hinting p_hinting) override; virtual TextServer::Hinting get_hinting() const override; virtual void set_force_autohinter(bool p_enabled) override; virtual bool get_force_autohinter() const override; virtual void set_distance_field_hint(bool p_distance_field) override{}; virtual bool get_distance_field_hint() const override { return false; }; virtual bool has_outline() const override; virtual float get_base_size() const override; virtual bool is_script_supported(uint32_t p_script) const override; virtual bool has_char(char32_t p_char) const override; virtual String get_supported_chars() const override; virtual float get_font_scale(int p_size) const override; virtual hb_font_t *get_hb_handle(int p_size) override; virtual uint32_t get_glyph_index(char32_t p_char, char32_t p_variation_selector) const override; virtual Vector2 get_advance(uint32_t p_index, int p_size) const override; virtual Vector2 get_kerning(uint32_t p_char, uint32_t p_next, int p_size) const override; virtual Vector2 draw_glyph(RID p_canvas, int p_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color) const override; virtual Vector2 draw_glyph_outline(RID p_canvas, int p_size, int p_outline_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color) const override; virtual ~DynamicFontDataAdvanced() override; }; #endif // DYNAMIC_FONT_ADV_H