1151 lines
33 KiB
C++
1151 lines
33 KiB
C++
/*************************************************************************/
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/* dynamic_font.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifdef FREETYPE_ENABLED
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#include "dynamic_font.h"
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#include "core/os/file_access.h"
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#include "core/os/os.h"
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#include FT_STROKER_H
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#define __STDC_LIMIT_MACROS
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#include <stdint.h>
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bool DynamicFontData::CacheID::operator<(CacheID right) const {
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return key < right.key;
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}
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Ref<DynamicFontAtSize> DynamicFontData::_get_dynamic_font_at_size(CacheID p_cache_id) {
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if (size_cache.has(p_cache_id)) {
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return Ref<DynamicFontAtSize>(size_cache[p_cache_id]);
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}
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Ref<DynamicFontAtSize> dfas;
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dfas.instance();
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dfas->font = Ref<DynamicFontData>(this);
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size_cache[p_cache_id] = dfas.ptr();
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dfas->id = p_cache_id;
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dfas->_load();
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return dfas;
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}
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void DynamicFontData::set_font_ptr(const uint8_t *p_font_mem, int p_font_mem_size) {
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font_mem = p_font_mem;
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font_mem_size = p_font_mem_size;
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}
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void DynamicFontData::set_font_path(const String &p_path) {
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font_path = p_path;
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}
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String DynamicFontData::get_font_path() const {
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return font_path;
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}
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void DynamicFontData::set_force_autohinter(bool p_force) {
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force_autohinter = p_force;
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}
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void DynamicFontData::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_antialiased", "antialiased"), &DynamicFontData::set_antialiased);
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ClassDB::bind_method(D_METHOD("is_antialiased"), &DynamicFontData::is_antialiased);
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ClassDB::bind_method(D_METHOD("set_font_path", "path"), &DynamicFontData::set_font_path);
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ClassDB::bind_method(D_METHOD("get_font_path"), &DynamicFontData::get_font_path);
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ClassDB::bind_method(D_METHOD("set_hinting", "mode"), &DynamicFontData::set_hinting);
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ClassDB::bind_method(D_METHOD("get_hinting"), &DynamicFontData::get_hinting);
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "antialiased"), "set_antialiased", "is_antialiased");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "hinting", PROPERTY_HINT_ENUM, "None,Light,Normal"), "set_hinting", "get_hinting");
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BIND_ENUM_CONSTANT(HINTING_NONE);
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BIND_ENUM_CONSTANT(HINTING_LIGHT);
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BIND_ENUM_CONSTANT(HINTING_NORMAL);
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ADD_PROPERTY(PropertyInfo(Variant::STRING, "font_path", PROPERTY_HINT_FILE, "*.ttf,*.otf"), "set_font_path", "get_font_path");
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}
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DynamicFontData::DynamicFontData() {
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antialiased = true;
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force_autohinter = false;
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hinting = DynamicFontData::HINTING_NORMAL;
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font_mem = NULL;
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font_mem_size = 0;
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}
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DynamicFontData::~DynamicFontData() {
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}
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////////////////////
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HashMap<String, Vector<uint8_t> > DynamicFontAtSize::_fontdata;
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Error DynamicFontAtSize::_load() {
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int error = FT_Init_FreeType(&library);
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ERR_FAIL_COND_V_MSG(error != 0, ERR_CANT_CREATE, "Error initializing FreeType.");
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// FT_OPEN_STREAM is extremely slow only on Android.
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if (OS::get_singleton()->get_name() == "Android" && font->font_mem == NULL && font->font_path != String()) {
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// cache font only once for each font->font_path
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if (_fontdata.has(font->font_path)) {
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font->set_font_ptr(_fontdata[font->font_path].ptr(), _fontdata[font->font_path].size());
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} else {
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FileAccess *f = FileAccess::open(font->font_path, FileAccess::READ);
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ERR_FAIL_COND_V_MSG(!f, ERR_CANT_OPEN, "Cannot open font file '" + font->font_path + "'.");
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size_t len = f->get_len();
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_fontdata[font->font_path] = Vector<uint8_t>();
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Vector<uint8_t> &fontdata = _fontdata[font->font_path];
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fontdata.resize(len);
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f->get_buffer(fontdata.ptrw(), len);
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font->set_font_ptr(fontdata.ptr(), len);
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f->close();
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}
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}
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if (font->font_mem == NULL && font->font_path != String()) {
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FileAccess *f = FileAccess::open(font->font_path, FileAccess::READ);
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ERR_FAIL_COND_V_MSG(!f, ERR_CANT_OPEN, "Cannot open font file '" + font->font_path + "'.");
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memset(&stream, 0, sizeof(FT_StreamRec));
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stream.base = NULL;
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stream.size = f->get_len();
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stream.pos = 0;
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stream.descriptor.pointer = f;
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stream.read = _ft_stream_io;
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stream.close = _ft_stream_close;
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FT_Open_Args fargs;
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memset(&fargs, 0, sizeof(FT_Open_Args));
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fargs.flags = FT_OPEN_STREAM;
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fargs.stream = &stream;
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error = FT_Open_Face(library, &fargs, 0, &face);
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} else if (font->font_mem) {
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memset(&stream, 0, sizeof(FT_StreamRec));
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stream.base = (unsigned char *)font->font_mem;
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stream.size = font->font_mem_size;
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stream.pos = 0;
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FT_Open_Args fargs;
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memset(&fargs, 0, sizeof(FT_Open_Args));
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fargs.memory_base = (unsigned char *)font->font_mem;
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fargs.memory_size = font->font_mem_size;
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fargs.flags = FT_OPEN_MEMORY;
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fargs.stream = &stream;
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error = FT_Open_Face(library, &fargs, 0, &face);
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} else {
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ERR_FAIL_V_MSG(ERR_UNCONFIGURED, "DynamicFont uninitialized.");
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}
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//error = FT_New_Face( library, src_path.utf8().get_data(),0,&face );
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if (error == FT_Err_Unknown_File_Format) {
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FT_Done_FreeType(library);
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ERR_FAIL_V_MSG(ERR_FILE_CANT_OPEN, "Unknown font format.");
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} else if (error) {
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FT_Done_FreeType(library);
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ERR_FAIL_V_MSG(ERR_FILE_CANT_OPEN, "Error loading font.");
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}
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if (FT_HAS_COLOR(face) && face->num_fixed_sizes > 0) {
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int best_match = 0;
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int diff = ABS(id.size - ((int64_t)face->available_sizes[0].width));
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scale_color_font = float(id.size * oversampling) / face->available_sizes[0].width;
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for (int i = 1; i < face->num_fixed_sizes; i++) {
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int ndiff = ABS(id.size - ((int64_t)face->available_sizes[i].width));
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if (ndiff < diff) {
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best_match = i;
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diff = ndiff;
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scale_color_font = float(id.size * oversampling) / face->available_sizes[i].width;
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}
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}
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FT_Select_Size(face, best_match);
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} else {
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FT_Set_Pixel_Sizes(face, 0, id.size * oversampling);
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}
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ascent = (face->size->metrics.ascender / 64.0) / oversampling * scale_color_font;
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descent = (-face->size->metrics.descender / 64.0) / oversampling * scale_color_font;
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linegap = 0;
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texture_flags = 0;
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if (id.mipmaps)
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texture_flags |= Texture::FLAG_MIPMAPS;
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if (id.filter)
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texture_flags |= Texture::FLAG_FILTER;
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valid = true;
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return OK;
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}
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float DynamicFontAtSize::font_oversampling = 1.0;
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float DynamicFontAtSize::get_height() const {
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return ascent + descent;
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}
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float DynamicFontAtSize::get_ascent() const {
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return ascent;
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}
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float DynamicFontAtSize::get_descent() const {
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return descent;
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}
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const Pair<const DynamicFontAtSize::Character *, DynamicFontAtSize *> DynamicFontAtSize::_find_char_with_font(CharType p_char, const Vector<Ref<DynamicFontAtSize> > &p_fallbacks) const {
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const Character *chr = char_map.getptr(p_char);
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ERR_FAIL_COND_V(!chr, (Pair<const Character *, DynamicFontAtSize *>(NULL, NULL)));
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if (!chr->found) {
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//not found, try in fallbacks
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for (int i = 0; i < p_fallbacks.size(); i++) {
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DynamicFontAtSize *fb = const_cast<DynamicFontAtSize *>(p_fallbacks[i].ptr());
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if (!fb->valid)
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continue;
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fb->_update_char(p_char);
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const Character *fallback_chr = fb->char_map.getptr(p_char);
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ERR_CONTINUE(!fallback_chr);
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if (!fallback_chr->found)
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continue;
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return Pair<const Character *, DynamicFontAtSize *>(fallback_chr, fb);
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}
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//not found, try 0xFFFD to display 'not found'.
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const_cast<DynamicFontAtSize *>(this)->_update_char(0xFFFD);
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chr = char_map.getptr(0xFFFD);
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ERR_FAIL_COND_V(!chr, (Pair<const Character *, DynamicFontAtSize *>(NULL, NULL)));
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}
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return Pair<const Character *, DynamicFontAtSize *>(chr, const_cast<DynamicFontAtSize *>(this));
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}
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Size2 DynamicFontAtSize::get_char_size(CharType p_char, CharType p_next, const Vector<Ref<DynamicFontAtSize> > &p_fallbacks) const {
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if (!valid)
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return Size2(1, 1);
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const_cast<DynamicFontAtSize *>(this)->_update_char(p_char);
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Pair<const Character *, DynamicFontAtSize *> char_pair_with_font = _find_char_with_font(p_char, p_fallbacks);
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const Character *ch = char_pair_with_font.first;
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ERR_FAIL_COND_V(!ch, Size2());
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Size2 ret(0, get_height());
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if (ch->found) {
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ret.x = ch->advance;
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}
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return ret;
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}
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void DynamicFontAtSize::set_texture_flags(uint32_t p_flags) {
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texture_flags = p_flags;
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for (int i = 0; i < textures.size(); i++) {
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Ref<ImageTexture> &tex = textures.write[i].texture;
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if (!tex.is_null())
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tex->set_flags(p_flags);
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}
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}
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float DynamicFontAtSize::draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next, const Color &p_modulate, const Vector<Ref<DynamicFontAtSize> > &p_fallbacks, bool p_advance_only, bool p_outline) const {
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if (!valid)
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return 0;
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const_cast<DynamicFontAtSize *>(this)->_update_char(p_char);
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Pair<const Character *, DynamicFontAtSize *> char_pair_with_font = _find_char_with_font(p_char, p_fallbacks);
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const Character *ch = char_pair_with_font.first;
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DynamicFontAtSize *font = char_pair_with_font.second;
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ERR_FAIL_COND_V(!ch, 0.0);
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float advance = 0.0;
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// use normal character size if there's no outline character
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if (p_outline && !ch->found) {
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FT_GlyphSlot slot = face->glyph;
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int error = FT_Load_Char(face, p_char, FT_HAS_COLOR(face) ? FT_LOAD_COLOR : FT_LOAD_DEFAULT);
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if (!error) {
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error = FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL);
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if (!error) {
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Character character = Character::not_found();
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character = const_cast<DynamicFontAtSize *>(this)->_bitmap_to_character(slot->bitmap, slot->bitmap_top, slot->bitmap_left, slot->advance.x / 64.0);
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advance = character.advance;
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}
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}
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}
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if (ch->found) {
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ERR_FAIL_COND_V(ch->texture_idx < -1 || ch->texture_idx >= font->textures.size(), 0);
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if (!p_advance_only && ch->texture_idx != -1) {
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Point2 cpos = p_pos;
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cpos.x += ch->h_align;
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cpos.y -= font->get_ascent();
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cpos.y += ch->v_align;
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Color modulate = p_modulate;
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if (FT_HAS_COLOR(face)) {
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modulate.r = modulate.g = modulate.b = 1.0;
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}
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RID texture = font->textures[ch->texture_idx].texture->get_rid();
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VisualServer::get_singleton()->canvas_item_add_texture_rect_region(p_canvas_item, Rect2(cpos, ch->rect.size), texture, ch->rect_uv, modulate, false, RID(), false);
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}
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advance = ch->advance;
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}
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return advance;
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}
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unsigned long DynamicFontAtSize::_ft_stream_io(FT_Stream stream, unsigned long offset, unsigned char *buffer, unsigned long count) {
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FileAccess *f = (FileAccess *)stream->descriptor.pointer;
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if (f->get_position() != offset) {
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f->seek(offset);
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}
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if (count == 0)
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return 0;
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return f->get_buffer(buffer, count);
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}
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void DynamicFontAtSize::_ft_stream_close(FT_Stream stream) {
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FileAccess *f = (FileAccess *)stream->descriptor.pointer;
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f->close();
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memdelete(f);
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}
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DynamicFontAtSize::Character DynamicFontAtSize::Character::not_found() {
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Character ch;
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ch.texture_idx = -1;
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ch.advance = 0;
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ch.h_align = 0;
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ch.v_align = 0;
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ch.found = false;
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return ch;
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}
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DynamicFontAtSize::TexturePosition DynamicFontAtSize::_find_texture_pos_for_glyph(int p_color_size, Image::Format p_image_format, int p_width, int p_height) {
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TexturePosition ret;
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ret.index = -1;
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ret.x = 0;
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ret.y = 0;
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int mw = p_width;
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int mh = p_height;
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for (int i = 0; i < textures.size(); i++) {
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const CharTexture &ct = textures[i];
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if (ct.texture->get_format() != p_image_format)
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continue;
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if (mw > ct.texture_size || mh > ct.texture_size) //too big for this texture
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continue;
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ret.y = 0x7FFFFFFF;
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ret.x = 0;
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for (int j = 0; j < ct.texture_size - mw; j++) {
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int max_y = 0;
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for (int k = j; k < j + mw; k++) {
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int y = ct.offsets[k];
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if (y > max_y)
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max_y = y;
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}
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if (max_y < ret.y) {
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ret.y = max_y;
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ret.x = j;
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}
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}
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if (ret.y == 0x7FFFFFFF || ret.y + mh > ct.texture_size)
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continue; //fail, could not fit it here
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ret.index = i;
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break;
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}
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if (ret.index == -1) {
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//could not find texture to fit, create one
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ret.x = 0;
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ret.y = 0;
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int texsize = MAX(id.size * oversampling * 8, 256);
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if (mw > texsize)
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texsize = mw; //special case, adapt to it?
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if (mh > texsize)
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texsize = mh; //special case, adapt to it?
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texsize = next_power_of_2(texsize);
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texsize = MIN(texsize, 4096);
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CharTexture tex;
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tex.texture_size = texsize;
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tex.imgdata.resize(texsize * texsize * p_color_size); //grayscale alpha
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{
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//zero texture
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PoolVector<uint8_t>::Write w = tex.imgdata.write();
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ERR_FAIL_COND_V(texsize * texsize * p_color_size > tex.imgdata.size(), ret);
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for (int i = 0; i < texsize * texsize * p_color_size; i++) {
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w[i] = 0;
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}
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}
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tex.offsets.resize(texsize);
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for (int i = 0; i < texsize; i++) //zero offsets
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tex.offsets.write[i] = 0;
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textures.push_back(tex);
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ret.index = textures.size() - 1;
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}
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return ret;
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}
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DynamicFontAtSize::Character DynamicFontAtSize::_bitmap_to_character(FT_Bitmap bitmap, int yofs, int xofs, float advance) {
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int w = bitmap.width;
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int h = bitmap.rows;
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int mw = w + rect_margin * 2;
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int mh = h + rect_margin * 2;
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ERR_FAIL_COND_V(mw > 4096, Character::not_found());
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ERR_FAIL_COND_V(mh > 4096, Character::not_found());
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int color_size = bitmap.pixel_mode == FT_PIXEL_MODE_BGRA ? 4 : 2;
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Image::Format require_format = color_size == 4 ? Image::FORMAT_RGBA8 : Image::FORMAT_LA8;
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TexturePosition tex_pos = _find_texture_pos_for_glyph(color_size, require_format, mw, mh);
|
|
ERR_FAIL_COND_V(tex_pos.index < 0, Character::not_found());
|
|
|
|
//fit character in char texture
|
|
|
|
CharTexture &tex = textures.write[tex_pos.index];
|
|
|
|
{
|
|
PoolVector<uint8_t>::Write wr = tex.imgdata.write();
|
|
|
|
for (int i = 0; i < h; i++) {
|
|
for (int j = 0; j < w; j++) {
|
|
|
|
int ofs = ((i + tex_pos.y + rect_margin) * tex.texture_size + j + tex_pos.x + rect_margin) * color_size;
|
|
ERR_FAIL_COND_V(ofs >= tex.imgdata.size(), Character::not_found());
|
|
switch (bitmap.pixel_mode) {
|
|
case FT_PIXEL_MODE_MONO: {
|
|
int byte = i * bitmap.pitch + (j >> 3);
|
|
int bit = 1 << (7 - (j % 8));
|
|
wr[ofs + 0] = 255; //grayscale as 1
|
|
wr[ofs + 1] = (bitmap.buffer[byte] & bit) ? 255 : 0;
|
|
} break;
|
|
case FT_PIXEL_MODE_GRAY:
|
|
wr[ofs + 0] = 255; //grayscale as 1
|
|
wr[ofs + 1] = bitmap.buffer[i * bitmap.pitch + j];
|
|
break;
|
|
case FT_PIXEL_MODE_BGRA: {
|
|
int ofs_color = i * bitmap.pitch + (j << 2);
|
|
wr[ofs + 2] = bitmap.buffer[ofs_color + 0];
|
|
wr[ofs + 1] = bitmap.buffer[ofs_color + 1];
|
|
wr[ofs + 0] = bitmap.buffer[ofs_color + 2];
|
|
wr[ofs + 3] = bitmap.buffer[ofs_color + 3];
|
|
} break;
|
|
// TODO: FT_PIXEL_MODE_LCD
|
|
default:
|
|
ERR_FAIL_V_MSG(Character::not_found(), "Font uses unsupported pixel format: " + itos(bitmap.pixel_mode) + ".");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//blit to image and texture
|
|
{
|
|
|
|
Ref<Image> img = memnew(Image(tex.texture_size, tex.texture_size, 0, require_format, tex.imgdata));
|
|
|
|
if (tex.texture.is_null()) {
|
|
tex.texture.instance();
|
|
tex.texture->create_from_image(img, Texture::FLAG_VIDEO_SURFACE | texture_flags);
|
|
} else {
|
|
tex.texture->set_data(img); //update
|
|
}
|
|
}
|
|
|
|
// update height array
|
|
|
|
for (int k = tex_pos.x; k < tex_pos.x + mw; k++) {
|
|
tex.offsets.write[k] = tex_pos.y + mh;
|
|
}
|
|
|
|
Character chr;
|
|
chr.h_align = xofs * scale_color_font / oversampling;
|
|
chr.v_align = ascent - (yofs * scale_color_font / oversampling); // + ascent - descent;
|
|
chr.advance = advance * scale_color_font / oversampling;
|
|
chr.texture_idx = tex_pos.index;
|
|
chr.found = true;
|
|
|
|
chr.rect_uv = Rect2(tex_pos.x + rect_margin, tex_pos.y + rect_margin, w, h);
|
|
chr.rect = chr.rect_uv;
|
|
chr.rect.position /= oversampling;
|
|
chr.rect.size = chr.rect.size * scale_color_font / oversampling;
|
|
return chr;
|
|
}
|
|
|
|
DynamicFontAtSize::Character DynamicFontAtSize::_make_outline_char(CharType p_char) {
|
|
Character ret = Character::not_found();
|
|
|
|
if (FT_Load_Char(face, p_char, FT_LOAD_NO_BITMAP | (font->force_autohinter ? FT_LOAD_FORCE_AUTOHINT : 0)) != 0)
|
|
return ret;
|
|
|
|
FT_Stroker stroker;
|
|
if (FT_Stroker_New(library, &stroker) != 0)
|
|
return ret;
|
|
|
|
FT_Stroker_Set(stroker, (int)(id.outline_size * oversampling * 64.0), FT_STROKER_LINECAP_BUTT, FT_STROKER_LINEJOIN_ROUND, 0);
|
|
FT_Glyph glyph;
|
|
FT_BitmapGlyph glyph_bitmap;
|
|
|
|
if (FT_Get_Glyph(face->glyph, &glyph) != 0)
|
|
goto cleanup_stroker;
|
|
if (FT_Glyph_Stroke(&glyph, stroker, 1) != 0)
|
|
goto cleanup_glyph;
|
|
if (FT_Glyph_To_Bitmap(&glyph, FT_RENDER_MODE_NORMAL, 0, 1) != 0)
|
|
goto cleanup_glyph;
|
|
|
|
glyph_bitmap = (FT_BitmapGlyph)glyph;
|
|
ret = _bitmap_to_character(glyph_bitmap->bitmap, glyph_bitmap->top, glyph_bitmap->left, glyph->advance.x / 65536.0);
|
|
|
|
cleanup_glyph:
|
|
FT_Done_Glyph(glyph);
|
|
cleanup_stroker:
|
|
FT_Stroker_Done(stroker);
|
|
return ret;
|
|
}
|
|
|
|
void DynamicFontAtSize::_update_char(CharType p_char) {
|
|
|
|
if (char_map.has(p_char))
|
|
return;
|
|
|
|
_THREAD_SAFE_METHOD_
|
|
|
|
Character character = Character::not_found();
|
|
|
|
FT_GlyphSlot slot = face->glyph;
|
|
|
|
if (FT_Get_Char_Index(face, p_char) == 0) {
|
|
char_map[p_char] = character;
|
|
return;
|
|
}
|
|
|
|
int ft_hinting;
|
|
|
|
switch (font->hinting) {
|
|
case DynamicFontData::HINTING_NONE:
|
|
ft_hinting = FT_LOAD_NO_HINTING;
|
|
break;
|
|
case DynamicFontData::HINTING_LIGHT:
|
|
ft_hinting = FT_LOAD_TARGET_LIGHT;
|
|
break;
|
|
default:
|
|
ft_hinting = FT_LOAD_TARGET_NORMAL;
|
|
break;
|
|
}
|
|
|
|
int error = FT_Load_Char(face, p_char, FT_HAS_COLOR(face) ? FT_LOAD_COLOR : FT_LOAD_DEFAULT | (font->force_autohinter ? FT_LOAD_FORCE_AUTOHINT : 0) | ft_hinting);
|
|
if (error) {
|
|
char_map[p_char] = character;
|
|
return;
|
|
}
|
|
|
|
if (id.outline_size > 0) {
|
|
character = _make_outline_char(p_char);
|
|
} else {
|
|
error = FT_Render_Glyph(face->glyph, font->antialiased ? FT_RENDER_MODE_NORMAL : FT_RENDER_MODE_MONO);
|
|
if (!error)
|
|
character = _bitmap_to_character(slot->bitmap, slot->bitmap_top, slot->bitmap_left, slot->advance.x / 64.0);
|
|
}
|
|
|
|
char_map[p_char] = character;
|
|
}
|
|
|
|
void DynamicFontAtSize::update_oversampling() {
|
|
if (oversampling == font_oversampling || !valid)
|
|
return;
|
|
|
|
FT_Done_FreeType(library);
|
|
textures.clear();
|
|
char_map.clear();
|
|
oversampling = font_oversampling;
|
|
valid = false;
|
|
_load();
|
|
}
|
|
|
|
DynamicFontAtSize::DynamicFontAtSize() {
|
|
|
|
valid = false;
|
|
rect_margin = 1;
|
|
ascent = 1;
|
|
descent = 1;
|
|
linegap = 1;
|
|
texture_flags = 0;
|
|
oversampling = font_oversampling;
|
|
scale_color_font = 1;
|
|
}
|
|
|
|
DynamicFontAtSize::~DynamicFontAtSize() {
|
|
|
|
if (valid) {
|
|
FT_Done_FreeType(library);
|
|
}
|
|
font->size_cache.erase(id);
|
|
font.unref();
|
|
}
|
|
|
|
/////////////////////////
|
|
|
|
void DynamicFont::_reload_cache() {
|
|
|
|
ERR_FAIL_COND(cache_id.size < 1);
|
|
if (!data.is_valid()) {
|
|
data_at_size.unref();
|
|
outline_data_at_size.unref();
|
|
fallbacks.resize(0);
|
|
fallback_data_at_size.resize(0);
|
|
fallback_outline_data_at_size.resize(0);
|
|
return;
|
|
}
|
|
|
|
data_at_size = data->_get_dynamic_font_at_size(cache_id);
|
|
if (outline_cache_id.outline_size > 0) {
|
|
outline_data_at_size = data->_get_dynamic_font_at_size(outline_cache_id);
|
|
fallback_outline_data_at_size.resize(fallback_data_at_size.size());
|
|
} else {
|
|
outline_data_at_size.unref();
|
|
fallback_outline_data_at_size.resize(0);
|
|
}
|
|
|
|
for (int i = 0; i < fallbacks.size(); i++) {
|
|
fallback_data_at_size.write[i] = fallbacks.write[i]->_get_dynamic_font_at_size(cache_id);
|
|
if (outline_cache_id.outline_size > 0)
|
|
fallback_outline_data_at_size.write[i] = fallbacks.write[i]->_get_dynamic_font_at_size(outline_cache_id);
|
|
}
|
|
|
|
emit_changed();
|
|
_change_notify();
|
|
}
|
|
|
|
void DynamicFont::set_font_data(const Ref<DynamicFontData> &p_data) {
|
|
|
|
data = p_data;
|
|
_reload_cache();
|
|
|
|
emit_changed();
|
|
_change_notify();
|
|
}
|
|
|
|
Ref<DynamicFontData> DynamicFont::get_font_data() const {
|
|
|
|
return data;
|
|
}
|
|
|
|
void DynamicFont::set_size(int p_size) {
|
|
|
|
if (cache_id.size == p_size)
|
|
return;
|
|
cache_id.size = p_size;
|
|
outline_cache_id.size = p_size;
|
|
_reload_cache();
|
|
}
|
|
|
|
int DynamicFont::get_size() const {
|
|
|
|
return cache_id.size;
|
|
}
|
|
|
|
void DynamicFont::set_outline_size(int p_size) {
|
|
if (outline_cache_id.outline_size == p_size)
|
|
return;
|
|
ERR_FAIL_COND(p_size < 0 || p_size > UINT8_MAX);
|
|
outline_cache_id.outline_size = p_size;
|
|
_reload_cache();
|
|
}
|
|
|
|
int DynamicFont::get_outline_size() const {
|
|
return outline_cache_id.outline_size;
|
|
}
|
|
|
|
void DynamicFont::set_outline_color(Color p_color) {
|
|
if (p_color != outline_color) {
|
|
outline_color = p_color;
|
|
emit_changed();
|
|
_change_notify();
|
|
}
|
|
}
|
|
|
|
Color DynamicFont::get_outline_color() const {
|
|
return outline_color;
|
|
}
|
|
|
|
bool DynamicFont::get_use_mipmaps() const {
|
|
|
|
return cache_id.mipmaps;
|
|
}
|
|
|
|
void DynamicFont::set_use_mipmaps(bool p_enable) {
|
|
|
|
if (cache_id.mipmaps == p_enable)
|
|
return;
|
|
cache_id.mipmaps = p_enable;
|
|
outline_cache_id.mipmaps = p_enable;
|
|
_reload_cache();
|
|
}
|
|
|
|
bool DynamicFont::get_use_filter() const {
|
|
|
|
return cache_id.filter;
|
|
}
|
|
|
|
void DynamicFont::set_use_filter(bool p_enable) {
|
|
|
|
if (cache_id.filter == p_enable)
|
|
return;
|
|
cache_id.filter = p_enable;
|
|
outline_cache_id.filter = p_enable;
|
|
_reload_cache();
|
|
}
|
|
|
|
bool DynamicFontData::is_antialiased() const {
|
|
|
|
return antialiased;
|
|
}
|
|
|
|
void DynamicFontData::set_antialiased(bool p_antialiased) {
|
|
|
|
if (antialiased == p_antialiased)
|
|
return;
|
|
antialiased = p_antialiased;
|
|
}
|
|
|
|
DynamicFontData::Hinting DynamicFontData::get_hinting() const {
|
|
|
|
return hinting;
|
|
}
|
|
|
|
void DynamicFontData::set_hinting(Hinting p_hinting) {
|
|
|
|
if (hinting == p_hinting)
|
|
return;
|
|
hinting = p_hinting;
|
|
}
|
|
|
|
int DynamicFont::get_spacing(int p_type) const {
|
|
|
|
if (p_type == SPACING_TOP) {
|
|
return spacing_top;
|
|
} else if (p_type == SPACING_BOTTOM) {
|
|
return spacing_bottom;
|
|
} else if (p_type == SPACING_CHAR) {
|
|
return spacing_char;
|
|
} else if (p_type == SPACING_SPACE) {
|
|
return spacing_space;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void DynamicFont::set_spacing(int p_type, int p_value) {
|
|
|
|
if (p_type == SPACING_TOP) {
|
|
spacing_top = p_value;
|
|
} else if (p_type == SPACING_BOTTOM) {
|
|
spacing_bottom = p_value;
|
|
} else if (p_type == SPACING_CHAR) {
|
|
spacing_char = p_value;
|
|
} else if (p_type == SPACING_SPACE) {
|
|
spacing_space = p_value;
|
|
}
|
|
|
|
emit_changed();
|
|
_change_notify();
|
|
}
|
|
|
|
float DynamicFont::get_height() const {
|
|
|
|
if (!data_at_size.is_valid())
|
|
return 1;
|
|
|
|
return data_at_size->get_height() + spacing_top + spacing_bottom;
|
|
}
|
|
|
|
float DynamicFont::get_ascent() const {
|
|
|
|
if (!data_at_size.is_valid())
|
|
return 1;
|
|
|
|
return data_at_size->get_ascent() + spacing_top;
|
|
}
|
|
|
|
float DynamicFont::get_descent() const {
|
|
|
|
if (!data_at_size.is_valid())
|
|
return 1;
|
|
|
|
return data_at_size->get_descent() + spacing_bottom;
|
|
}
|
|
|
|
Size2 DynamicFont::get_char_size(CharType p_char, CharType p_next) const {
|
|
|
|
if (!data_at_size.is_valid())
|
|
return Size2(1, 1);
|
|
|
|
Size2 ret = data_at_size->get_char_size(p_char, p_next, fallback_data_at_size);
|
|
if (p_char == ' ')
|
|
ret.width += spacing_space + spacing_char;
|
|
else if (p_next)
|
|
ret.width += spacing_char;
|
|
|
|
return ret;
|
|
}
|
|
|
|
bool DynamicFont::is_distance_field_hint() const {
|
|
|
|
return false;
|
|
}
|
|
|
|
bool DynamicFont::has_outline() const {
|
|
return outline_cache_id.outline_size > 0;
|
|
}
|
|
|
|
float DynamicFont::draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next, const Color &p_modulate, bool p_outline) const {
|
|
const Ref<DynamicFontAtSize> &font_at_size = p_outline && outline_cache_id.outline_size > 0 ? outline_data_at_size : data_at_size;
|
|
|
|
if (!font_at_size.is_valid())
|
|
return 0;
|
|
|
|
const Vector<Ref<DynamicFontAtSize> > &fallbacks = p_outline && outline_cache_id.outline_size > 0 ? fallback_outline_data_at_size : fallback_data_at_size;
|
|
Color color = p_outline && outline_cache_id.outline_size > 0 ? p_modulate * outline_color : p_modulate;
|
|
|
|
// If requested outline draw, but no outline is present, simply return advance without drawing anything
|
|
bool advance_only = p_outline && outline_cache_id.outline_size == 0;
|
|
return font_at_size->draw_char(p_canvas_item, p_pos, p_char, p_next, color, fallbacks, advance_only, p_outline) + spacing_char;
|
|
}
|
|
|
|
void DynamicFont::set_fallback(int p_idx, const Ref<DynamicFontData> &p_data) {
|
|
|
|
ERR_FAIL_COND(p_data.is_null());
|
|
ERR_FAIL_INDEX(p_idx, fallbacks.size());
|
|
fallbacks.write[p_idx] = p_data;
|
|
fallback_data_at_size.write[p_idx] = fallbacks.write[p_idx]->_get_dynamic_font_at_size(cache_id);
|
|
}
|
|
|
|
void DynamicFont::add_fallback(const Ref<DynamicFontData> &p_data) {
|
|
|
|
ERR_FAIL_COND(p_data.is_null());
|
|
fallbacks.push_back(p_data);
|
|
fallback_data_at_size.push_back(fallbacks.write[fallbacks.size() - 1]->_get_dynamic_font_at_size(cache_id)); //const..
|
|
if (outline_cache_id.outline_size > 0)
|
|
fallback_outline_data_at_size.push_back(fallbacks.write[fallbacks.size() - 1]->_get_dynamic_font_at_size(outline_cache_id));
|
|
|
|
_change_notify();
|
|
emit_changed();
|
|
_change_notify();
|
|
}
|
|
|
|
int DynamicFont::get_fallback_count() const {
|
|
return fallbacks.size();
|
|
}
|
|
Ref<DynamicFontData> DynamicFont::get_fallback(int p_idx) const {
|
|
|
|
ERR_FAIL_INDEX_V(p_idx, fallbacks.size(), Ref<DynamicFontData>());
|
|
|
|
return fallbacks[p_idx];
|
|
}
|
|
void DynamicFont::remove_fallback(int p_idx) {
|
|
|
|
ERR_FAIL_INDEX(p_idx, fallbacks.size());
|
|
fallbacks.remove(p_idx);
|
|
fallback_data_at_size.remove(p_idx);
|
|
emit_changed();
|
|
_change_notify();
|
|
}
|
|
|
|
bool DynamicFont::_set(const StringName &p_name, const Variant &p_value) {
|
|
|
|
String str = p_name;
|
|
if (str.begins_with("fallback/")) {
|
|
int idx = str.get_slicec('/', 1).to_int();
|
|
Ref<DynamicFontData> fd = p_value;
|
|
|
|
if (fd.is_valid()) {
|
|
if (idx == fallbacks.size()) {
|
|
add_fallback(fd);
|
|
return true;
|
|
} else if (idx >= 0 && idx < fallbacks.size()) {
|
|
set_fallback(idx, fd);
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
} else if (idx >= 0 && idx < fallbacks.size()) {
|
|
remove_fallback(idx);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool DynamicFont::_get(const StringName &p_name, Variant &r_ret) const {
|
|
|
|
String str = p_name;
|
|
if (str.begins_with("fallback/")) {
|
|
int idx = str.get_slicec('/', 1).to_int();
|
|
|
|
if (idx == fallbacks.size()) {
|
|
r_ret = Ref<DynamicFontData>();
|
|
return true;
|
|
} else if (idx >= 0 && idx < fallbacks.size()) {
|
|
r_ret = get_fallback(idx);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
void DynamicFont::_get_property_list(List<PropertyInfo> *p_list) const {
|
|
|
|
for (int i = 0; i < fallbacks.size(); i++) {
|
|
p_list->push_back(PropertyInfo(Variant::OBJECT, "fallback/" + itos(i), PROPERTY_HINT_RESOURCE_TYPE, "DynamicFontData"));
|
|
}
|
|
|
|
p_list->push_back(PropertyInfo(Variant::OBJECT, "fallback/" + itos(fallbacks.size()), PROPERTY_HINT_RESOURCE_TYPE, "DynamicFontData"));
|
|
}
|
|
|
|
void DynamicFont::_bind_methods() {
|
|
|
|
ClassDB::bind_method(D_METHOD("set_font_data", "data"), &DynamicFont::set_font_data);
|
|
ClassDB::bind_method(D_METHOD("get_font_data"), &DynamicFont::get_font_data);
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|
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ClassDB::bind_method(D_METHOD("set_size", "data"), &DynamicFont::set_size);
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|
ClassDB::bind_method(D_METHOD("get_size"), &DynamicFont::get_size);
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|
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|
ClassDB::bind_method(D_METHOD("set_outline_size", "size"), &DynamicFont::set_outline_size);
|
|
ClassDB::bind_method(D_METHOD("get_outline_size"), &DynamicFont::get_outline_size);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_outline_color", "color"), &DynamicFont::set_outline_color);
|
|
ClassDB::bind_method(D_METHOD("get_outline_color"), &DynamicFont::get_outline_color);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_use_mipmaps", "enable"), &DynamicFont::set_use_mipmaps);
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|
ClassDB::bind_method(D_METHOD("get_use_mipmaps"), &DynamicFont::get_use_mipmaps);
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|
ClassDB::bind_method(D_METHOD("set_use_filter", "enable"), &DynamicFont::set_use_filter);
|
|
ClassDB::bind_method(D_METHOD("get_use_filter"), &DynamicFont::get_use_filter);
|
|
ClassDB::bind_method(D_METHOD("set_spacing", "type", "value"), &DynamicFont::set_spacing);
|
|
ClassDB::bind_method(D_METHOD("get_spacing", "type"), &DynamicFont::get_spacing);
|
|
|
|
ClassDB::bind_method(D_METHOD("add_fallback", "data"), &DynamicFont::add_fallback);
|
|
ClassDB::bind_method(D_METHOD("set_fallback", "idx", "data"), &DynamicFont::set_fallback);
|
|
ClassDB::bind_method(D_METHOD("get_fallback", "idx"), &DynamicFont::get_fallback);
|
|
ClassDB::bind_method(D_METHOD("remove_fallback", "idx"), &DynamicFont::remove_fallback);
|
|
ClassDB::bind_method(D_METHOD("get_fallback_count"), &DynamicFont::get_fallback_count);
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|
|
|
ADD_GROUP("Settings", "");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "size", PROPERTY_HINT_RANGE, "1,255,1"), "set_size", "get_size");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "outline_size", PROPERTY_HINT_RANGE, "0,255,1"), "set_outline_size", "get_outline_size");
|
|
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "outline_color"), "set_outline_color", "get_outline_color");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_mipmaps"), "set_use_mipmaps", "get_use_mipmaps");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_filter"), "set_use_filter", "get_use_filter");
|
|
ADD_GROUP("Extra Spacing", "extra_spacing");
|
|
ADD_PROPERTYI(PropertyInfo(Variant::INT, "extra_spacing_top"), "set_spacing", "get_spacing", SPACING_TOP);
|
|
ADD_PROPERTYI(PropertyInfo(Variant::INT, "extra_spacing_bottom"), "set_spacing", "get_spacing", SPACING_BOTTOM);
|
|
ADD_PROPERTYI(PropertyInfo(Variant::INT, "extra_spacing_char"), "set_spacing", "get_spacing", SPACING_CHAR);
|
|
ADD_PROPERTYI(PropertyInfo(Variant::INT, "extra_spacing_space"), "set_spacing", "get_spacing", SPACING_SPACE);
|
|
ADD_GROUP("Font", "");
|
|
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "font_data", PROPERTY_HINT_RESOURCE_TYPE, "DynamicFontData"), "set_font_data", "get_font_data");
|
|
|
|
BIND_ENUM_CONSTANT(SPACING_TOP);
|
|
BIND_ENUM_CONSTANT(SPACING_BOTTOM);
|
|
BIND_ENUM_CONSTANT(SPACING_CHAR);
|
|
BIND_ENUM_CONSTANT(SPACING_SPACE);
|
|
}
|
|
|
|
Mutex *DynamicFont::dynamic_font_mutex = NULL;
|
|
|
|
SelfList<DynamicFont>::List *DynamicFont::dynamic_fonts = NULL;
|
|
|
|
DynamicFont::DynamicFont() :
|
|
font_list(this) {
|
|
|
|
cache_id.size = 16;
|
|
outline_cache_id.size = 16;
|
|
spacing_top = 0;
|
|
spacing_bottom = 0;
|
|
spacing_char = 0;
|
|
spacing_space = 0;
|
|
outline_color = Color(1, 1, 1);
|
|
if (dynamic_font_mutex) {
|
|
dynamic_font_mutex->lock();
|
|
dynamic_fonts->add(&font_list);
|
|
dynamic_font_mutex->unlock();
|
|
}
|
|
}
|
|
|
|
DynamicFont::~DynamicFont() {
|
|
if (dynamic_font_mutex) {
|
|
dynamic_font_mutex->lock();
|
|
dynamic_fonts->remove(&font_list);
|
|
dynamic_font_mutex->unlock();
|
|
}
|
|
}
|
|
|
|
void DynamicFont::initialize_dynamic_fonts() {
|
|
dynamic_fonts = memnew(SelfList<DynamicFont>::List());
|
|
dynamic_font_mutex = Mutex::create();
|
|
}
|
|
|
|
void DynamicFont::finish_dynamic_fonts() {
|
|
memdelete(dynamic_font_mutex);
|
|
dynamic_font_mutex = NULL;
|
|
memdelete(dynamic_fonts);
|
|
dynamic_fonts = NULL;
|
|
}
|
|
|
|
void DynamicFont::update_oversampling() {
|
|
|
|
Vector<Ref<DynamicFont> > changed;
|
|
|
|
if (dynamic_font_mutex)
|
|
dynamic_font_mutex->lock();
|
|
|
|
SelfList<DynamicFont> *E = dynamic_fonts->first();
|
|
while (E) {
|
|
|
|
if (E->self()->data_at_size.is_valid()) {
|
|
E->self()->data_at_size->update_oversampling();
|
|
|
|
if (E->self()->outline_data_at_size.is_valid()) {
|
|
E->self()->outline_data_at_size->update_oversampling();
|
|
}
|
|
|
|
for (int i = 0; i < E->self()->fallback_data_at_size.size(); i++) {
|
|
if (E->self()->fallback_data_at_size[i].is_valid()) {
|
|
E->self()->fallback_data_at_size.write[i]->update_oversampling();
|
|
|
|
if (E->self()->has_outline() && E->self()->fallback_outline_data_at_size[i].is_valid()) {
|
|
E->self()->fallback_outline_data_at_size.write[i]->update_oversampling();
|
|
}
|
|
}
|
|
}
|
|
|
|
changed.push_back(Ref<DynamicFont>(E->self()));
|
|
}
|
|
|
|
E = E->next();
|
|
}
|
|
|
|
if (dynamic_font_mutex)
|
|
dynamic_font_mutex->unlock();
|
|
|
|
for (int i = 0; i < changed.size(); i++) {
|
|
changed.write[i]->emit_changed();
|
|
}
|
|
}
|
|
|
|
/////////////////////////
|
|
|
|
RES ResourceFormatLoaderDynamicFont::load(const String &p_path, const String &p_original_path, Error *r_error) {
|
|
|
|
if (r_error)
|
|
*r_error = ERR_FILE_CANT_OPEN;
|
|
|
|
Ref<DynamicFontData> dfont;
|
|
dfont.instance();
|
|
dfont->set_font_path(p_path);
|
|
|
|
if (r_error)
|
|
*r_error = OK;
|
|
|
|
return dfont;
|
|
}
|
|
|
|
void ResourceFormatLoaderDynamicFont::get_recognized_extensions(List<String> *p_extensions) const {
|
|
|
|
p_extensions->push_back("ttf");
|
|
p_extensions->push_back("otf");
|
|
}
|
|
|
|
bool ResourceFormatLoaderDynamicFont::handles_type(const String &p_type) const {
|
|
|
|
return (p_type == "DynamicFontData");
|
|
}
|
|
|
|
String ResourceFormatLoaderDynamicFont::get_resource_type(const String &p_path) const {
|
|
|
|
String el = p_path.get_extension().to_lower();
|
|
if (el == "ttf" || el == "otf")
|
|
return "DynamicFontData";
|
|
return "";
|
|
}
|
|
|
|
#endif
|