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-rw-r--r--modules/text_server_adv/dynamic_font_adv.h195
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diff --git a/modules/text_server_adv/dynamic_font_adv.h b/modules/text_server_adv/dynamic_font_adv.h
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--- a/modules/text_server_adv/dynamic_font_adv.h
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-/*************************************************************************/
-/* dynamic_font_adv.h */
-/*************************************************************************/
-/* This file is part of: */
-/* GODOT ENGINE */
-/* https://godotengine.org */
-/*************************************************************************/
-/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2021 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 "modules/modules_enabled.gen.h"
-#ifdef MODULE_FREETYPE_ENABLED
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_TRUETYPE_TABLES_H
-
-#include <hb-ft.h>
-#include <hb-ot.h>
-
-struct DynamicFontDataAdvanced : public FontDataAdvanced {
- _THREAD_SAFE_CLASS_
-
-private:
- struct CharTexture {
- Vector<uint8_t> imgdata;
- int texture_size = 0;
- Vector<int> offsets;
- Ref<ImageTexture> 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 = 0;
- };
- bool operator<(CacheID right) const {
- return key < right.key;
- }
- };
-
- struct DataAtSize {
- FT_Face face = nullptr;
- TT_OS2 *os2 = nullptr;
- FT_StreamRec stream;
-
- int size = 0;
- float scale_color_font = 1.f;
- float ascent = 0.0;
- float descent = 0.0;
- float underline_position = 0.0;
- float underline_thickness = 0.0;
-
- Vector<CharTexture> textures;
- HashMap<uint32_t, Character> 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<uint8_t> font_mem_cache;
-
- Map<int32_t, double> variations;
-
- 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<CacheID, DataAtSize *> size_cache;
- Map<CacheID, DataAtSize *> 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 Dictionary get_variation_list() const override;
-
- virtual void set_variation(const String &p_name, double p_value) override;
- virtual double get_variation(const String &p_name) 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 bool get_glyph_contours(int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const override;
-
- virtual ~DynamicFontDataAdvanced() override;
-};
-
-#endif // MODULE_FREETYPE_ENABLED
-
-#endif // DYNAMIC_FONT_ADV_H
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