From c1d261fdb09db3aae4c7fa6587812a697f2ea8cd Mon Sep 17 00:00:00 2001 From: bruvzg <7645683+bruvzg@users.noreply.github.com> Date: Thu, 22 Oct 2020 19:40:18 +0300 Subject: [Complex Text Layouts] Add variable fonts support. --- modules/gdnative/include/text/godot_text.h | 3 + modules/gdnative/text/text_server_gdnative.cpp | 18 ++++++ modules/gdnative/text/text_server_gdnative.h | 4 ++ modules/text_server_adv/dynamic_font_adv.cpp | 78 +++++++++++++++++++++++++- modules/text_server_adv/dynamic_font_adv.h | 6 ++ modules/text_server_adv/font_adv.h | 4 ++ modules/text_server_adv/text_server_adv.cpp | 23 +++++++- modules/text_server_adv/text_server_adv.h | 4 ++ 8 files changed, 138 insertions(+), 2 deletions(-) (limited to 'modules') diff --git a/modules/gdnative/include/text/godot_text.h b/modules/gdnative/include/text/godot_text.h index 2eac6adfb5..6885f2463d 100644 --- a/modules/gdnative/include/text/godot_text.h +++ b/modules/gdnative/include/text/godot_text.h @@ -82,6 +82,9 @@ typedef struct { void (*font_set_antialiased)(void *, godot_rid *, bool); bool (*font_get_antialiased)(void *, godot_rid *); godot_dictionary (*font_get_feature_list)(void *, godot_rid *); + godot_dictionary (*font_get_variation_list)(void *, godot_rid *); + void (*font_set_variation)(void *, godot_rid *, const godot_string *, double); + double (*font_get_variation)(void *, godot_rid *, const godot_string *); void (*font_set_distance_field_hint)(void *, godot_rid *, bool); bool (*font_get_distance_field_hint)(void *, godot_rid *); void (*font_set_hinting)(void *, godot_rid *, godot_int); diff --git a/modules/gdnative/text/text_server_gdnative.cpp b/modules/gdnative/text/text_server_gdnative.cpp index 68624260a6..cb87adafe8 100644 --- a/modules/gdnative/text/text_server_gdnative.cpp +++ b/modules/gdnative/text/text_server_gdnative.cpp @@ -148,6 +148,24 @@ bool TextServerGDNative::font_get_antialiased(RID p_font) const { return interface->font_get_antialiased(data, (godot_rid *)&p_font); } +Dictionary TextServerGDNative::font_get_variation_list(RID p_font) const { + ERR_FAIL_COND_V(interface == nullptr, Dictionary()); + godot_dictionary result = interface->font_get_variation_list(data, (godot_rid *)&p_font); + Dictionary info = *(Dictionary *)&result; + godot_dictionary_destroy(&result); + + return info; +} + +void TextServerGDNative::font_set_variation(RID p_font, const String &p_name, double p_value) { + ERR_FAIL_COND(interface == nullptr); + interface->font_set_variation(data, (godot_rid *)&p_font, (godot_string *)&p_name, p_value); +} + +double TextServerGDNative::font_get_variation(RID p_font, const String &p_name) const { + return interface->font_get_variation(data, (godot_rid *)&p_font, (godot_string *)&p_name); +} + void TextServerGDNative::font_set_hinting(RID p_font, TextServer::Hinting p_hinting) { ERR_FAIL_COND(interface == nullptr); interface->font_set_hinting(data, (godot_rid *)&p_font, (godot_int)p_hinting); diff --git a/modules/gdnative/text/text_server_gdnative.h b/modules/gdnative/text/text_server_gdnative.h index 0196120c00..959302aaf4 100644 --- a/modules/gdnative/text/text_server_gdnative.h +++ b/modules/gdnative/text/text_server_gdnative.h @@ -76,6 +76,10 @@ public: virtual bool font_get_antialiased(RID p_font) const override; virtual Dictionary font_get_feature_list(RID p_font) const override; + virtual Dictionary font_get_variation_list(RID p_font) const override; + + virtual void font_set_variation(RID p_font, const String &p_name, double p_value) override; + virtual double font_get_variation(RID p_font, const String &p_name) const override; virtual void font_set_hinting(RID p_font, Hinting p_hinting) override; virtual Hinting font_get_hinting(RID p_font) const override; diff --git a/modules/text_server_adv/dynamic_font_adv.cpp b/modules/text_server_adv/dynamic_font_adv.cpp index 9c7c36ea5c..08c4ad2727 100644 --- a/modules/text_server_adv/dynamic_font_adv.cpp +++ b/modules/text_server_adv/dynamic_font_adv.cpp @@ -32,6 +32,7 @@ #include FT_STROKER_H #include FT_ADVANCES_H +#include FT_MULTIPLE_MASTERS_H DynamicFontDataAdvanced::DataAtSize *DynamicFontDataAdvanced::get_data_for_size(int p_size, int p_outline_size) { ERR_FAIL_COND_V(!valid, nullptr); @@ -134,16 +135,91 @@ DynamicFontDataAdvanced::DataAtSize *DynamicFontDataAdvanced::get_data_for_size( memdelete(fds); ERR_FAIL_V_MSG(nullptr, "Error loading HB font."); } + if (p_outline_size != 0) { size_cache_outline[id] = fds; } else { size_cache[id] = fds; } - } + // Write variations. + if (fds->face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS) { + FT_MM_Var *amaster; + + FT_Get_MM_Var(fds->face, &amaster); + + Vector hb_vars; + Vector coords; + coords.resize(amaster->num_axis); + + FT_Get_Var_Design_Coordinates(fds->face, coords.size(), coords.ptrw()); + + for (FT_UInt i = 0; i < amaster->num_axis; i++) { + hb_variation_t var; + + // Reset to default. + var.tag = amaster->axis[i].tag; + var.value = (double)amaster->axis[i].def / 65536.f; + coords.write[i] = amaster->axis[i].def; + + if (variations.has(var.tag)) { + var.value = variations[var.tag]; + coords.write[i] = CLAMP(variations[var.tag] * 65536.f, amaster->axis[i].minimum, amaster->axis[i].maximum); + } + + hb_vars.push_back(var); + } + + FT_Set_Var_Design_Coordinates(fds->face, coords.size(), coords.ptrw()); + hb_font_set_variations(fds->hb_handle, hb_vars.empty() ? nullptr : &hb_vars[0], hb_vars.size()); + + FT_Done_MM_Var(library, amaster); + } + } return fds; } +Dictionary DynamicFontDataAdvanced::get_variation_list() const { + _THREAD_SAFE_METHOD_ + DataAtSize *fds = const_cast(this)->get_data_for_size(base_size); + if (fds == nullptr) { + return Dictionary(); + } + + Dictionary ret; + // Read variations. + if (fds->face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS) { + FT_MM_Var *amaster; + + FT_Get_MM_Var(fds->face, &amaster); + + for (FT_UInt i = 0; i < amaster->num_axis; i++) { + ret[(int32_t)amaster->axis[i].tag] = Vector3i(amaster->axis[i].minimum / 65536, amaster->axis[i].maximum / 65536, amaster->axis[i].def / 65536); + } + + FT_Done_MM_Var(library, amaster); + } + return ret; +} + +void DynamicFontDataAdvanced::set_variation(const String &p_name, double p_value) { + _THREAD_SAFE_METHOD_ + int32_t tag = TS->name_to_tag(p_name); + if (!variations.has(tag) || (variations[tag] != p_value)) { + variations[tag] = p_value; + clear_cache(); + } +} + +double DynamicFontDataAdvanced::get_variation(const String &p_name) const { + _THREAD_SAFE_METHOD_ + int32_t tag = TS->name_to_tag(p_name); + if (!variations.has(tag)) { + return 0.f; + } + return variations[tag]; +} + Dictionary DynamicFontDataAdvanced::get_feature_list() const { _THREAD_SAFE_METHOD_ DataAtSize *fds = const_cast(this)->get_data_for_size(base_size); diff --git a/modules/text_server_adv/dynamic_font_adv.h b/modules/text_server_adv/dynamic_font_adv.h index 4ba120f203..f9d6735c32 100644 --- a/modules/text_server_adv/dynamic_font_adv.h +++ b/modules/text_server_adv/dynamic_font_adv.h @@ -118,6 +118,8 @@ private: String font_path; Vector font_mem_cache; + Map variations; + float rect_margin = 1.f; int base_size = 16; float oversampling = 1.f; @@ -146,6 +148,10 @@ public: virtual float get_descent(int p_size) const override; virtual Dictionary get_feature_list() const override; + virtual Dictionary get_variation_list() const override; + + virtual void set_variation(const String &p_name, double p_value) override; + virtual double get_variation(const String &p_name) const override; virtual float get_underline_position(int p_size) const override; virtual float get_underline_thickness(int p_size) const override; diff --git a/modules/text_server_adv/font_adv.h b/modules/text_server_adv/font_adv.h index 232d6d7d08..88b327f57b 100644 --- a/modules/text_server_adv/font_adv.h +++ b/modules/text_server_adv/font_adv.h @@ -50,6 +50,10 @@ struct FontDataAdvanced { virtual float get_descent(int p_size) const = 0; virtual Dictionary get_feature_list() const { return Dictionary(); }; + virtual Dictionary get_variation_list() const { return Dictionary(); }; + + virtual void set_variation(const String &p_name, double p_value){}; + virtual double get_variation(const String &p_name) const { return 0; }; virtual float get_underline_position(int p_size) const = 0; virtual float get_underline_thickness(int p_size) const = 0; diff --git a/modules/text_server_adv/text_server_adv.cpp b/modules/text_server_adv/text_server_adv.cpp index 95103c6ef6..803004f93f 100644 --- a/modules/text_server_adv/text_server_adv.cpp +++ b/modules/text_server_adv/text_server_adv.cpp @@ -132,7 +132,7 @@ _FORCE_INLINE_ bool is_linebreak(char32_t p_char) { /*************************************************************************/ String TextServerAdvanced::interface_name = "ICU / HarfBuzz / Graphite"; -uint32_t TextServerAdvanced::interface_features = FEATURE_BIDI_LAYOUT | FEATURE_VERTICAL_LAYOUT | FEATURE_SHAPING | FEATURE_KASHIDA_JUSTIFICATION | FEATURE_BREAK_ITERATORS | FEATURE_USE_SUPPORT_DATA; +uint32_t TextServerAdvanced::interface_features = FEATURE_BIDI_LAYOUT | FEATURE_VERTICAL_LAYOUT | FEATURE_SHAPING | FEATURE_KASHIDA_JUSTIFICATION | FEATURE_BREAK_ITERATORS | FEATURE_USE_SUPPORT_DATA | FEATURE_FONT_VARIABLE; bool TextServerAdvanced::has_feature(Feature p_feature) { return (interface_features & p_feature) == p_feature; @@ -622,6 +622,27 @@ bool TextServerAdvanced::font_get_antialiased(RID p_font) const { return fd->get_antialiased(); } +Dictionary TextServerAdvanced::font_get_variation_list(RID p_font) const { + _THREAD_SAFE_METHOD_ + const FontDataAdvanced *fd = font_owner.getornull(p_font); + ERR_FAIL_COND_V(!fd, Dictionary()); + return fd->get_variation_list(); +} + +void TextServerAdvanced::font_set_variation(RID p_font, const String &p_name, double p_value) { + _THREAD_SAFE_METHOD_ + FontDataAdvanced *fd = font_owner.getornull(p_font); + ERR_FAIL_COND(!fd); + fd->set_variation(p_name, p_value); +} + +double TextServerAdvanced::font_get_variation(RID p_font, const String &p_name) const { + _THREAD_SAFE_METHOD_ + const FontDataAdvanced *fd = font_owner.getornull(p_font); + ERR_FAIL_COND_V(!fd, 0); + return fd->get_variation(p_name); +} + void TextServerAdvanced::font_set_distance_field_hint(RID p_font, bool p_distance_field) { _THREAD_SAFE_METHOD_ FontDataAdvanced *fd = font_owner.getornull(p_font); diff --git a/modules/text_server_adv/text_server_adv.h b/modules/text_server_adv/text_server_adv.h index f26b87f67e..8c26554158 100644 --- a/modules/text_server_adv/text_server_adv.h +++ b/modules/text_server_adv/text_server_adv.h @@ -138,6 +138,10 @@ public: virtual bool font_get_antialiased(RID p_font) const override; virtual Dictionary font_get_feature_list(RID p_font) const override; + virtual Dictionary font_get_variation_list(RID p_font) const override; + + virtual void font_set_variation(RID p_font, const String &p_name, double p_value) override; + virtual double font_get_variation(RID p_font, const String &p_name) const override; virtual void font_set_hinting(RID p_font, Hinting p_hinting) override; virtual Hinting font_get_hinting(RID p_font) const override; -- cgit v1.2.3