diff options
Diffstat (limited to 'modules/text_server_fb/text_server_fb.cpp')
| -rw-r--r-- | modules/text_server_fb/text_server_fb.cpp | 243 |
1 files changed, 241 insertions, 2 deletions
diff --git a/modules/text_server_fb/text_server_fb.cpp b/modules/text_server_fb/text_server_fb.cpp index aaef9c9a3d..9133c277bb 100644 --- a/modules/text_server_fb/text_server_fb.cpp +++ b/modules/text_server_fb/text_server_fb.cpp @@ -34,6 +34,7 @@ // Headers for building as GDExtension plug-in. #include <godot_cpp/classes/file_access.hpp> +#include <godot_cpp/classes/os.hpp> #include <godot_cpp/classes/project_settings.hpp> #include <godot_cpp/classes/rendering_server.hpp> #include <godot_cpp/classes/translation_server.hpp> @@ -49,6 +50,7 @@ using namespace godot; #include "core/config/project_settings.h" #include "core/error/error_macros.h" #include "core/string/print_string.h" +#include "core/string/translation.h" #include "core/string/ucaps.h" #include "modules/modules_enabled.gen.h" // For freetype, msdfgen, svg. @@ -852,11 +854,13 @@ _FORCE_INLINE_ bool TextServerFallback::_ensure_cache_for_size(FontFallback *p_f if (fd->face->style_name != nullptr) { p_font_data->style_name = String::utf8((const char *)fd->face->style_name); } + p_font_data->weight = _font_get_weight_by_name(p_font_data->style_name.to_lower()); + p_font_data->stretch = _font_get_stretch_by_name(p_font_data->style_name.to_lower()); p_font_data->style_flags = 0; - if (fd->face->style_flags & FT_STYLE_FLAG_BOLD) { + if ((fd->face->style_flags & FT_STYLE_FLAG_BOLD) || p_font_data->weight >= 700) { p_font_data->style_flags.set_flag(FONT_BOLD); } - if (fd->face->style_flags & FT_STYLE_FLAG_ITALIC) { + if ((fd->face->style_flags & FT_STYLE_FLAG_ITALIC) || _is_ital_style(p_font_data->style_name.to_lower())) { p_font_data->style_flags.set_flag(FONT_ITALIC); } if (fd->face->face_flags & FT_FACE_FLAG_FIXED_WIDTH) { @@ -1061,6 +1065,46 @@ String TextServerFallback::_font_get_style_name(const RID &p_font_rid) const { return fd->style_name; } +void TextServerFallback::_font_set_weight(const RID &p_font_rid, int64_t p_weight) { + FontFallback *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND(!fd); + + MutexLock lock(fd->mutex); + Vector2i size = _get_size(fd, 16); + ERR_FAIL_COND(!_ensure_cache_for_size(fd, size)); + fd->weight = CLAMP(p_weight, 100, 999); +} + +int64_t TextServerFallback::_font_get_weight(const RID &p_font_rid) const { + FontFallback *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND_V(!fd, 400); + + MutexLock lock(fd->mutex); + Vector2i size = _get_size(fd, 16); + ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), 400); + return fd->weight; +} + +void TextServerFallback::_font_set_stretch(const RID &p_font_rid, int64_t p_stretch) { + FontFallback *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND(!fd); + + MutexLock lock(fd->mutex); + Vector2i size = _get_size(fd, 16); + ERR_FAIL_COND(!_ensure_cache_for_size(fd, size)); + fd->stretch = CLAMP(p_stretch, 50, 200); +} + +int64_t TextServerFallback::_font_get_stretch(const RID &p_font_rid) const { + FontFallback *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND_V(!fd, 100); + + MutexLock lock(fd->mutex); + Vector2i size = _get_size(fd, 16); + ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), 100); + return fd->stretch; +} + void TextServerFallback::_font_set_name(const RID &p_font_rid, const String &p_name) { FontFallback *fd = font_owner.get_or_null(p_font_rid); ERR_FAIL_COND(!fd); @@ -1197,6 +1241,25 @@ int64_t TextServerFallback::_font_get_fixed_size(const RID &p_font_rid) const { return fd->fixed_size; } +void TextServerFallback::_font_set_allow_system_fallback(const RID &p_font_rid, bool p_allow_system_fallback) { + FontFallback *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND(!fd); + + MutexLock lock(fd->mutex); + if (fd->allow_system_fallback != p_allow_system_fallback) { + _font_clear_cache(fd); + fd->allow_system_fallback = p_allow_system_fallback; + } +} + +bool TextServerFallback::_font_is_allow_system_fallback(const RID &p_font_rid) const { + FontFallback *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND_V(!fd, false); + + MutexLock lock(fd->mutex); + return fd->allow_system_fallback; +} + void TextServerFallback::_font_set_force_autohinter(const RID &p_font_rid, bool p_force_autohinter) { FontFallback *fd = font_owner.get_or_null(p_font_rid); ERR_FAIL_COND(!fd); @@ -3603,6 +3666,7 @@ bool TextServerFallback::_shaped_text_shape(const RID &p_shaped) { sd->glyphs.push_back(gl); } else { // Text span. + RID prev_font; for (int j = span.start; j < span.end; j++) { Glyph gl; gl.start = j; @@ -3623,6 +3687,170 @@ bool TextServerFallback::_shaped_text_shape(const RID &p_shaped) { break; } } + if (!gl.font_rid.is_valid() && prev_font.is_valid()) { + if (_font_has_char(prev_font, gl.index)) { + gl.font_rid = prev_font; + } + } + if (!gl.font_rid.is_valid() && OS::get_singleton()->has_feature("system_fonts") && span.fonts.size() > 0) { + // Try system fallback. + RID fdef = span.fonts[0]; + if (_font_is_allow_system_fallback(fdef)) { + String text = sd->text.substr(j, 1); + String font_name = _font_get_name(fdef); + BitField<FontStyle> font_style = _font_get_style(fdef); + int font_weight = _font_get_weight(fdef); + int font_stretch = _font_get_stretch(fdef); + Dictionary dvar = _font_get_variation_coordinates(fdef); + static int64_t wgth_tag = _name_to_tag("weight"); + static int64_t wdth_tag = _name_to_tag("width"); + static int64_t ital_tag = _name_to_tag("italic"); + if (dvar.has(wgth_tag)) { + font_weight = dvar[wgth_tag].operator int(); + } + if (dvar.has(wdth_tag)) { + font_stretch = dvar[wdth_tag].operator int(); + } + if (dvar.has(ital_tag) && dvar[ital_tag].operator int() == 1) { + font_style.set_flag(TextServer::FONT_ITALIC); + } + + String locale = (span.language.is_empty()) ? TranslationServer::get_singleton()->get_tool_locale() : span.language; + + PackedStringArray fallback_font_name = OS::get_singleton()->get_system_font_path_for_text(font_name, text, locale, String(), font_weight, font_stretch, font_style & TextServer::FONT_ITALIC); +#ifdef GDEXTENSION + for (int fb = 0; fb < fallback_font_name.size(); fb++) { + const String &E = fallback_font_name[fb]; +#else + for (const String &E : fallback_font_name) { +#endif + SystemFontKey key = SystemFontKey(E, font_style & TextServer::FONT_ITALIC, font_weight, font_stretch, fdef, this); + if (system_fonts.has(key)) { + const SystemFontCache &sysf_cache = system_fonts[key]; + int best_score = 0; + int best_match = -1; + for (int face_idx = 0; face_idx < sysf_cache.var.size(); face_idx++) { + const SystemFontCacheRec &F = sysf_cache.var[face_idx]; + if (unlikely(!_font_has_char(F.rid, text[0]))) { + continue; + } + BitField<FontStyle> style = _font_get_style(F.rid); + int weight = _font_get_weight(F.rid); + int stretch = _font_get_stretch(F.rid); + int score = (20 - Math::abs(weight - font_weight) / 50); + score += (20 - Math::abs(stretch - font_stretch) / 10); + if (bool(style & TextServer::FONT_ITALIC) == bool(font_style & TextServer::FONT_ITALIC)) { + score += 30; + } + if (score >= best_score) { + best_score = score; + best_match = face_idx; + } + if (best_score == 70) { + break; + } + } + if (best_match != -1) { + gl.font_rid = sysf_cache.var[best_match].rid; + } + } + if (!gl.font_rid.is_valid()) { + if (system_fonts.has(key)) { + const SystemFontCache &sysf_cache = system_fonts[key]; + if (sysf_cache.max_var == sysf_cache.var.size()) { + // All subfonts already tested, skip. + continue; + } + } + + if (!system_font_data.has(E)) { + system_font_data[E] = FileAccess::get_file_as_bytes(E); + } + + const PackedByteArray &font_data = system_font_data[E]; + + SystemFontCacheRec sysf; + sysf.rid = _create_font(); + _font_set_data_ptr(sysf.rid, font_data.ptr(), font_data.size()); + + Dictionary var = dvar; + // Select matching style from collection. + int best_score = 0; + int best_match = -1; + for (int face_idx = 0; face_idx < _font_get_face_count(sysf.rid); face_idx++) { + _font_set_face_index(sysf.rid, face_idx); + if (unlikely(!_font_has_char(sysf.rid, text[0]))) { + continue; + } + BitField<FontStyle> style = _font_get_style(sysf.rid); + int weight = _font_get_weight(sysf.rid); + int stretch = _font_get_stretch(sysf.rid); + int score = (20 - Math::abs(weight - font_weight) / 50); + score += (20 - Math::abs(stretch - font_stretch) / 10); + if (bool(style & TextServer::FONT_ITALIC) == bool(font_style & TextServer::FONT_ITALIC)) { + score += 30; + } + if (score >= best_score) { + best_score = score; + best_match = face_idx; + } + if (best_score == 70) { + break; + } + } + if (best_match == -1) { + _free_rid(sysf.rid); + continue; + } else { + _font_set_face_index(sysf.rid, best_match); + } + sysf.index = best_match; + + // If it's a variable font, apply weight, stretch and italic coordinates to match requested style. + if (best_score != 70) { + Dictionary ftr = _font_supported_variation_list(sysf.rid); + if (ftr.has(wdth_tag)) { + var[wdth_tag] = font_stretch; + _font_set_stretch(sysf.rid, font_stretch); + } + if (ftr.has(wgth_tag)) { + var[wgth_tag] = font_weight; + _font_set_weight(sysf.rid, font_weight); + } + if ((font_style & TextServer::FONT_ITALIC) && ftr.has(ital_tag)) { + var[ital_tag] = 1; + _font_set_style(sysf.rid, _font_get_style(sysf.rid) | TextServer::FONT_ITALIC); + } + } + + _font_set_antialiasing(sysf.rid, key.antialiasing); + _font_set_generate_mipmaps(sysf.rid, key.mipmaps); + _font_set_multichannel_signed_distance_field(sysf.rid, key.msdf); + _font_set_msdf_pixel_range(sysf.rid, key.msdf_range); + _font_set_msdf_size(sysf.rid, key.msdf_source_size); + _font_set_fixed_size(sysf.rid, key.fixed_size); + _font_set_force_autohinter(sysf.rid, key.force_autohinter); + _font_set_hinting(sysf.rid, key.hinting); + _font_set_subpixel_positioning(sysf.rid, key.subpixel_positioning); + _font_set_variation_coordinates(sysf.rid, var); + _font_set_oversampling(sysf.rid, key.oversampling); + _font_set_embolden(sysf.rid, key.embolden); + _font_set_transform(sysf.rid, key.transform); + + if (system_fonts.has(key)) { + system_fonts[key].var.push_back(sysf); + } else { + SystemFontCache &sysf_cache = system_fonts[key]; + sysf_cache.max_var = _font_get_face_count(sysf.rid); + sysf_cache.var.push_back(sysf); + } + gl.font_rid = sysf.rid; + } + break; + } + } + } + prev_font = gl.font_rid; double scale = _font_get_scale(gl.font_rid, gl.font_size); if (gl.font_rid.is_valid()) { @@ -3893,6 +4121,17 @@ TextServerFallback::TextServerFallback() { _insert_feature_sets(); }; +void TextServerFallback::_cleanup() { + for (const KeyValue<SystemFontKey, SystemFontCache> &E : system_fonts) { + const Vector<SystemFontCacheRec> &sysf_cache = E.value.var; + for (const SystemFontCacheRec &F : sysf_cache) { + _free_rid(F.rid); + } + } + system_fonts.clear(); + system_font_data.clear(); +} + TextServerFallback::~TextServerFallback() { #ifdef MODULE_FREETYPE_ENABLED if (ft_library != nullptr) { |