/*************************************************************************/ /* dynamic_font.cpp */ /*************************************************************************/ /* 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. */ /*************************************************************************/ #ifdef FREETYPE_ENABLED #include "dynamic_font.h" #include "core/os/file_access.h" #include "core/os/os.h" #include FT_STROKER_H #define __STDC_LIMIT_MACROS #include <stdint.h> bool DynamicFontData::CacheID::operator<(CacheID right) const { return key < right.key; } Ref<DynamicFontAtSize> DynamicFontData::_get_dynamic_font_at_size(CacheID p_cache_id) { if (size_cache.has(p_cache_id)) { return Ref<DynamicFontAtSize>(size_cache[p_cache_id]); } Ref<DynamicFontAtSize> dfas; dfas.instance(); dfas->font = Ref<DynamicFontData>(this); size_cache[p_cache_id] = dfas.ptr(); dfas->id = p_cache_id; dfas->_load(); return dfas; } void DynamicFontData::set_font_ptr(const uint8_t *p_font_mem, int p_font_mem_size) { font_mem = p_font_mem; font_mem_size = p_font_mem_size; } void DynamicFontData::set_font_path(const String &p_path) { font_path = p_path; } String DynamicFontData::get_font_path() const { return font_path; } void DynamicFontData::set_force_autohinter(bool p_force) { force_autohinter = p_force; } void DynamicFontData::_bind_methods() { ClassDB::bind_method(D_METHOD("set_antialiased", "antialiased"), &DynamicFontData::set_antialiased); ClassDB::bind_method(D_METHOD("is_antialiased"), &DynamicFontData::is_antialiased); ClassDB::bind_method(D_METHOD("set_font_path", "path"), &DynamicFontData::set_font_path); ClassDB::bind_method(D_METHOD("get_font_path"), &DynamicFontData::get_font_path); ClassDB::bind_method(D_METHOD("set_hinting", "mode"), &DynamicFontData::set_hinting); ClassDB::bind_method(D_METHOD("get_hinting"), &DynamicFontData::get_hinting); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "antialiased"), "set_antialiased", "is_antialiased"); ADD_PROPERTY(PropertyInfo(Variant::INT, "hinting", PROPERTY_HINT_ENUM, "None,Light,Normal"), "set_hinting", "get_hinting"); BIND_ENUM_CONSTANT(HINTING_NONE); BIND_ENUM_CONSTANT(HINTING_LIGHT); BIND_ENUM_CONSTANT(HINTING_NORMAL); ADD_PROPERTY(PropertyInfo(Variant::STRING, "font_path", PROPERTY_HINT_FILE, "*.ttf,*.otf"), "set_font_path", "get_font_path"); } DynamicFontData::DynamicFontData() { antialiased = true; force_autohinter = false; hinting = DynamicFontData::HINTING_NORMAL; font_mem = NULL; font_mem_size = 0; } DynamicFontData::~DynamicFontData() { } //////////////////// HashMap<String, Vector<uint8_t> > DynamicFontAtSize::_fontdata; Error DynamicFontAtSize::_load() { int error = FT_Init_FreeType(&library); ERR_FAIL_COND_V_MSG(error != 0, ERR_CANT_CREATE, "Error initializing FreeType."); // FT_OPEN_STREAM is extremely slow only on Android. if (OS::get_singleton()->get_name() == "Android" && font->font_mem == NULL && font->font_path != String()) { // cache font only once for each font->font_path if (_fontdata.has(font->font_path)) { font->set_font_ptr(_fontdata[font->font_path].ptr(), _fontdata[font->font_path].size()); } else { FileAccess *f = FileAccess::open(font->font_path, FileAccess::READ); ERR_FAIL_COND_V_MSG(!f, ERR_CANT_OPEN, "Cannot open font file '" + font->font_path + "'."); size_t len = f->get_len(); _fontdata[font->font_path] = Vector<uint8_t>(); Vector<uint8_t> &fontdata = _fontdata[font->font_path]; fontdata.resize(len); f->get_buffer(fontdata.ptrw(), len); font->set_font_ptr(fontdata.ptr(), len); f->close(); } } if (font->font_mem == NULL && font->font_path != String()) { FileAccess *f = FileAccess::open(font->font_path, FileAccess::READ); ERR_FAIL_COND_V_MSG(!f, ERR_CANT_OPEN, "Cannot open font file '" + font->font_path + "'."); memset(&stream, 0, sizeof(FT_StreamRec)); stream.base = NULL; stream.size = f->get_len(); stream.pos = 0; stream.descriptor.pointer = f; stream.read = _ft_stream_io; stream.close = _ft_stream_close; FT_Open_Args fargs; memset(&fargs, 0, sizeof(FT_Open_Args)); fargs.flags = FT_OPEN_STREAM; fargs.stream = &stream; error = FT_Open_Face(library, &fargs, 0, &face); } else if (font->font_mem) { memset(&stream, 0, sizeof(FT_StreamRec)); stream.base = (unsigned char *)font->font_mem; stream.size = font->font_mem_size; stream.pos = 0; FT_Open_Args fargs; memset(&fargs, 0, sizeof(FT_Open_Args)); fargs.memory_base = (unsigned char *)font->font_mem; fargs.memory_size = font->font_mem_size; fargs.flags = FT_OPEN_MEMORY; fargs.stream = &stream; error = FT_Open_Face(library, &fargs, 0, &face); } else { ERR_FAIL_V_MSG(ERR_UNCONFIGURED, "DynamicFont uninitialized."); } //error = FT_New_Face( library, src_path.utf8().get_data(),0,&face ); if (error == FT_Err_Unknown_File_Format) { FT_Done_FreeType(library); ERR_FAIL_V_MSG(ERR_FILE_CANT_OPEN, "Unknown font format."); } else if (error) { FT_Done_FreeType(library); ERR_FAIL_V_MSG(ERR_FILE_CANT_OPEN, "Error loading font."); } if (FT_HAS_COLOR(face) && face->num_fixed_sizes > 0) { int best_match = 0; int diff = ABS(id.size - ((int64_t)face->available_sizes[0].width)); scale_color_font = float(id.size * oversampling) / face->available_sizes[0].width; for (int i = 1; i < face->num_fixed_sizes; i++) { int ndiff = ABS(id.size - ((int64_t)face->available_sizes[i].width)); if (ndiff < diff) { best_match = i; diff = ndiff; scale_color_font = float(id.size * oversampling) / face->available_sizes[i].width; } } FT_Select_Size(face, best_match); } else { FT_Set_Pixel_Sizes(face, 0, id.size * oversampling); } ascent = (face->size->metrics.ascender / 64.0) / oversampling * scale_color_font; descent = (-face->size->metrics.descender / 64.0) / oversampling * scale_color_font; linegap = 0; texture_flags = 0; if (id.mipmaps) texture_flags |= Texture::FLAG_MIPMAPS; if (id.filter) texture_flags |= Texture::FLAG_FILTER; valid = true; return OK; } float DynamicFontAtSize::font_oversampling = 1.0; float DynamicFontAtSize::get_height() const { return ascent + descent; } float DynamicFontAtSize::get_ascent() const { return ascent; } float DynamicFontAtSize::get_descent() const { return descent; } const Pair<const DynamicFontAtSize::Character *, DynamicFontAtSize *> DynamicFontAtSize::_find_char_with_font(CharType p_char, const Vector<Ref<DynamicFontAtSize> > &p_fallbacks) const { const Character *chr = char_map.getptr(p_char); ERR_FAIL_COND_V(!chr, (Pair<const Character *, DynamicFontAtSize *>(NULL, NULL))); if (!chr->found) { //not found, try in fallbacks for (int i = 0; i < p_fallbacks.size(); i++) { DynamicFontAtSize *fb = const_cast<DynamicFontAtSize *>(p_fallbacks[i].ptr()); if (!fb->valid) continue; fb->_update_char(p_char); const Character *fallback_chr = fb->char_map.getptr(p_char); ERR_CONTINUE(!fallback_chr); if (!fallback_chr->found) continue; return Pair<const Character *, DynamicFontAtSize *>(fallback_chr, fb); } //not found, try 0xFFFD to display 'not found'. const_cast<DynamicFontAtSize *>(this)->_update_char(0xFFFD); chr = char_map.getptr(0xFFFD); ERR_FAIL_COND_V(!chr, (Pair<const Character *, DynamicFontAtSize *>(NULL, NULL))); } return Pair<const Character *, DynamicFontAtSize *>(chr, const_cast<DynamicFontAtSize *>(this)); } Size2 DynamicFontAtSize::get_char_size(CharType p_char, CharType p_next, const Vector<Ref<DynamicFontAtSize> > &p_fallbacks) const { if (!valid) return Size2(1, 1); const_cast<DynamicFontAtSize *>(this)->_update_char(p_char); Pair<const Character *, DynamicFontAtSize *> char_pair_with_font = _find_char_with_font(p_char, p_fallbacks); const Character *ch = char_pair_with_font.first; ERR_FAIL_COND_V(!ch, Size2()); Size2 ret(0, get_height()); if (ch->found) { ret.x = ch->advance; } return ret; } void DynamicFontAtSize::set_texture_flags(uint32_t p_flags) { texture_flags = p_flags; for (int i = 0; i < textures.size(); i++) { Ref<ImageTexture> &tex = textures.write[i].texture; if (!tex.is_null()) tex->set_flags(p_flags); } } 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 { if (!valid) return 0; const_cast<DynamicFontAtSize *>(this)->_update_char(p_char); Pair<const Character *, DynamicFontAtSize *> char_pair_with_font = _find_char_with_font(p_char, p_fallbacks); const Character *ch = char_pair_with_font.first; DynamicFontAtSize *font = char_pair_with_font.second; ERR_FAIL_COND_V(!ch, 0.0); float advance = 0.0; // use normal character size if there's no outline charater if (p_outline && !ch->found) { FT_GlyphSlot slot = face->glyph; int error = FT_Load_Char(face, p_char, FT_HAS_COLOR(face) ? FT_LOAD_COLOR : FT_LOAD_DEFAULT); if (!error) { error = FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL); if (!error) { Character character = Character::not_found(); character = const_cast<DynamicFontAtSize *>(this)->_bitmap_to_character(slot->bitmap, slot->bitmap_top, slot->bitmap_left, slot->advance.x / 64.0); advance = character.advance; } } } if (ch->found) { ERR_FAIL_COND_V(ch->texture_idx < -1 || ch->texture_idx >= font->textures.size(), 0); if (!p_advance_only && ch->texture_idx != -1) { Point2 cpos = p_pos; cpos.x += ch->h_align; cpos.y -= font->get_ascent(); cpos.y += ch->v_align; Color modulate = p_modulate; if (FT_HAS_COLOR(face)) { modulate.r = modulate.g = modulate.b = 1.0; } RID texture = font->textures[ch->texture_idx].texture->get_rid(); 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); } advance = ch->advance; } return advance; } unsigned long DynamicFontAtSize::_ft_stream_io(FT_Stream stream, unsigned long offset, unsigned char *buffer, unsigned long count) { FileAccess *f = (FileAccess *)stream->descriptor.pointer; if (f->get_position() != offset) { f->seek(offset); } if (count == 0) return 0; return f->get_buffer(buffer, count); } void DynamicFontAtSize::_ft_stream_close(FT_Stream stream) { FileAccess *f = (FileAccess *)stream->descriptor.pointer; f->close(); memdelete(f); } DynamicFontAtSize::Character DynamicFontAtSize::Character::not_found() { Character ch; ch.texture_idx = -1; ch.advance = 0; ch.h_align = 0; ch.v_align = 0; ch.found = false; return ch; } DynamicFontAtSize::TexturePosition DynamicFontAtSize::_find_texture_pos_for_glyph(int p_color_size, Image::Format p_image_format, int p_width, int p_height) { TexturePosition ret; ret.index = -1; ret.x = 0; ret.y = 0; int mw = p_width; int mh = p_height; for (int i = 0; i < textures.size(); i++) { const CharTexture &ct = textures[i]; if (ct.texture->get_format() != p_image_format) continue; if (mw > ct.texture_size || mh > ct.texture_size) //too big for this texture continue; ret.y = 0x7FFFFFFF; ret.x = 0; for (int j = 0; j < ct.texture_size - mw; j++) { int max_y = 0; for (int k = j; k < j + mw; k++) { int y = ct.offsets[k]; if (y > max_y) max_y = y; } if (max_y < ret.y) { ret.y = max_y; ret.x = j; } } if (ret.y == 0x7FFFFFFF || ret.y + mh > ct.texture_size) continue; //fail, could not fit it here ret.index = i; break; } if (ret.index == -1) { //could not find texture to fit, create one ret.x = 0; ret.y = 0; int texsize = MAX(id.size * oversampling * 8, 256); if (mw > texsize) texsize = mw; //special case, adapt to it? if (mh > texsize) texsize = mh; //special case, adapt to it? texsize = next_power_of_2(texsize); texsize = MIN(texsize, 4096); CharTexture tex; tex.texture_size = texsize; tex.imgdata.resize(texsize * texsize * p_color_size); //grayscale alpha { //zero texture PoolVector<uint8_t>::Write w = tex.imgdata.write(); ERR_FAIL_COND_V(texsize * texsize * p_color_size > tex.imgdata.size(), ret); for (int i = 0; i < texsize * texsize * p_color_size; i++) { w[i] = 0; } } tex.offsets.resize(texsize); for (int i = 0; i < texsize; i++) //zero offsets tex.offsets.write[i] = 0; textures.push_back(tex); ret.index = textures.size() - 1; } return ret; } DynamicFontAtSize::Character DynamicFontAtSize::_bitmap_to_character(FT_Bitmap bitmap, int yofs, int xofs, float advance) { int w = bitmap.width; int h = bitmap.rows; int mw = w + rect_margin * 2; int mh = h + rect_margin * 2; ERR_FAIL_COND_V(mw > 4096, Character::not_found()); ERR_FAIL_COND_V(mh > 4096, Character::not_found()); int color_size = bitmap.pixel_mode == FT_PIXEL_MODE_BGRA ? 4 : 2; Image::Format require_format = color_size == 4 ? Image::FORMAT_RGBA8 : Image::FORMAT_LA8; 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); ClassDB::bind_method(D_METHOD("set_size", "data"), &DynamicFont::set_size); ClassDB::bind_method(D_METHOD("get_size"), &DynamicFont::get_size); 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); ClassDB::bind_method(D_METHOD("get_use_mipmaps"), &DynamicFont::get_use_mipmaps); 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); ADD_GROUP("Settings", ""); 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