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Diffstat (limited to 'scene/resources/dynamic_font.cpp')
| -rw-r--r-- | scene/resources/dynamic_font.cpp | 1156 |
1 files changed, 0 insertions, 1156 deletions
diff --git a/scene/resources/dynamic_font.cpp b/scene/resources/dynamic_font.cpp deleted file mode 100644 index d76d364737..0000000000 --- a/scene/resources/dynamic_font.cpp +++ /dev/null @@ -1,1156 +0,0 @@ -/*************************************************************************/ -/* 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. */ -/*************************************************************************/ - -#include "modules/modules_enabled.gen.h" -#ifdef MODULE_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 = nullptr; - 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 == nullptr && 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); - if (!f) { - FT_Done_FreeType(library); - ERR_FAIL_V_MSG(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 == nullptr && font->font_path != String()) { - FileAccess *f = FileAccess::open(font->font_path, FileAccess::READ); - if (!f) { - FT_Done_FreeType(library); - ERR_FAIL_V_MSG(ERR_CANT_OPEN, "Cannot open font file '" + font->font_path + "'."); - } - - memset(&stream, 0, sizeof(FT_StreamRec)); - stream.base = nullptr; - 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 { - FT_Done_FreeType(library); - 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; - underline_position = -face->underline_position / 64.0 / oversampling * scale_color_font; - underline_thickness = face->underline_thickness / 64.0 / oversampling * scale_color_font; - linegap = 0; - - 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; -} - -float DynamicFontAtSize::get_underline_position() const { - return underline_position; -} - -float DynamicFontAtSize::get_underline_thickness() const { - return underline_thickness; -} - -const Pair<const DynamicFontAtSize::Character *, DynamicFontAtSize *> DynamicFontAtSize::_find_char_with_font(char32_t 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 *>(nullptr, nullptr))); - - 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 *>(nullptr, nullptr))); - } - - return Pair<const Character *, DynamicFontAtSize *>(chr, const_cast<DynamicFontAtSize *>(this)); -} - -Size2 DynamicFontAtSize::get_char_size(char32_t p_char, char32_t 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; -} - -String DynamicFontAtSize::get_available_chars() const { - String chars; - - FT_UInt gindex; - FT_ULong charcode = FT_Get_First_Char(face, &gindex); - while (gindex != 0) { - if (charcode != 0) { - chars += char32_t(charcode); - } - charcode = FT_Get_Next_Char(face, charcode, &gindex); - } - - return chars; -} - -float DynamicFontAtSize::draw_char(RID p_canvas_item, const Point2 &p_pos, char32_t p_char, char32_t 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 character - 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(); - RenderingServer::get_singleton()->canvas_item_add_texture_rect_region(p_canvas_item, Rect2(cpos, ch->rect.size), texture, ch->rect_uv, modulate, false, 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 - uint8_t *w = tex.imgdata.ptrw(); - ERR_FAIL_COND_V(texsize * texsize * p_color_size > tex.imgdata.size(), ret); - - // Initialize the texture to all-white pixels to prevent artifacts when the - // font is displayed at a non-default scale with filtering enabled. - if (p_color_size == 2) { - for (int i = 0; i < texsize * texsize * p_color_size; i += 2) { - w[i + 0] = 255; - w[i + 1] = 0; - } - } else { - for (int i = 0; i < texsize * texsize * p_color_size; i += 4) { - w[i + 0] = 255; - w[i + 1] = 255; - w[i + 2] = 255; - w[i + 3] = 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]; - - { - uint8_t *wr = tex.imgdata.ptrw(); - - 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); - } else { - tex.texture->update(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(char32_t 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, font->antialiased ? FT_RENDER_MODE_NORMAL : FT_RENDER_MODE_MONO, nullptr, 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(char32_t 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; - 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 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; -} - -float DynamicFont::get_underline_position() const { - if (!data_at_size.is_valid()) { - return 2; - } - - return data_at_size->get_underline_position(); -} - -float DynamicFont::get_underline_thickness() const { - if (!data_at_size.is_valid()) { - return 1; - } - - return data_at_size->get_underline_thickness(); -} - -Size2 DynamicFont::get_char_size(char32_t p_char, char32_t 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; -} - -String DynamicFont::get_available_chars() const { - if (!data_at_size.is_valid()) { - return ""; - } - - String chars = data_at_size->get_available_chars(); - - for (int i = 0; i < fallback_data_at_size.size(); i++) { - String fallback_chars = fallback_data_at_size[i]->get_available_chars(); - for (int j = 0; j < fallback_chars.length(); j++) { - if (chars.find_char(fallback_chars[j]) == -1) { - chars += fallback_chars[j]; - } - } - } - - return chars; -} - -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, char32_t p_char, char32_t 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("get_available_chars"), &DynamicFont::get_available_chars); - - 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_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, "1,1024,1"), "set_size", "get_size"); - ADD_PROPERTY(PropertyInfo(Variant::INT, "outline_size", PROPERTY_HINT_RANGE, "0,1024,1"), "set_outline_size", "get_outline_size"); - ADD_PROPERTY(PropertyInfo(Variant::COLOR, "outline_color"), "set_outline_color", "get_outline_color"); - 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; - -SelfList<DynamicFont>::List *DynamicFont::dynamic_fonts = nullptr; - -DynamicFont::DynamicFont() : - font_list(this) { - valid = false; - 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); - - MutexLock lock(dynamic_font_mutex); - dynamic_fonts->add(&font_list); -} - -DynamicFont::~DynamicFont() { - MutexLock lock(dynamic_font_mutex); - dynamic_fonts->remove(&font_list); -} - -void DynamicFont::initialize_dynamic_fonts() { - dynamic_fonts = memnew(SelfList<DynamicFont>::List()); -} - -void DynamicFont::finish_dynamic_fonts() { - memdelete(dynamic_fonts); - dynamic_fonts = nullptr; -} - -void DynamicFont::update_oversampling() { - Vector<Ref<DynamicFont>> changed; - { - MutexLock lock(dynamic_font_mutex); - - 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(); - } - } - - 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, bool p_use_sub_threads, float *r_progress, bool p_no_cache) { - 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 |