cfg: implement serialization to json

.gitmodules

@@ -107,4 +107,7 @@
 [submodule "3rdparty/GPUOpen/VulkanMemoryAllocator"]
 	path = 3rdparty/GPUOpen/VulkanMemoryAllocator
 	url = ../../Megamouse/VulkanMemoryAllocator.git
+[submodule "3rdparty/json"]
+	path = 3rdparty/json
+	url = ../../nlohmann/json.git
 	ignore = dirty

3rdparty/CMakeLists.txt

@@ -353,6 +353,10 @@ add_subdirectory(opencv EXCLUDE_FROM_ALL)
 # FUSION
 add_subdirectory(fusion EXCLUDE_FROM_ALL)
 
+# nlohmann json
+add_library(3rdparty_json INTERFACE)
+target_include_directories(3rdparty_json INTERFACE json/include)
+
 # add nice ALIAS targets for ease of use
 if(USE_SYSTEM_LIBUSB)
 	add_library(3rdparty::libusb ALIAS usb-1.0-shared)
@@ -385,3 +389,4 @@ add_library(3rdparty::miniupnpc ALIAS libminiupnpc-static)
 add_library(3rdparty::rtmidi ALIAS rtmidi)
 add_library(3rdparty::opencv ALIAS ${OPENCV_TARGET})
 add_library(3rdparty::fusion ALIAS Fusion)
+add_library(3rdparty::json ALIAS 3rdparty_json)

Utilities/Config.cpp

@@ -531,6 +531,54 @@ std::string cfg::node::to_string() const
 	return {out.c_str(), out.size()};
 }
 
+nlohmann::json cfg::node::to_json() const 
+{
+	auto result = nlohmann::json::object();
+
+	for (const auto& node : get_nodes())
+	{
+		result[node->get_name()] = node->to_json();
+	}
+
+	return result;
+}
+
+bool cfg::node::from_json(const nlohmann::json &json, bool dynamic)
+{
+	if (!json.is_object())
+	{
+		return false;
+	}
+
+	auto find_node = [this](std::string_view name) -> _base *
+	{
+		for (const auto& node : get_nodes())
+		{
+			if (node->get_name() == name)
+			{
+				return node;
+			}
+		}
+
+		return nullptr;
+	};
+
+
+	for (auto &[key, value] : json.get<nlohmann::json::object_t>())
+	{
+		auto keyNode = find_node(key);
+
+		if (keyNode == nullptr || (dynamic && !keyNode->get_is_dynamic()))
+		{
+			continue;
+		}
+
+		keyNode->from_json(value, dynamic);
+	}
+
+	return false;
+}
+
 bool cfg::node::from_string(std::string_view value, bool dynamic)
 {
 	auto [result, error] = yaml_load(std::string(value));

Utilities/Config.h

@@ -5,6 +5,7 @@
 #include "util/logs.hpp"
 #include "util/atomic.hpp"
 #include "util/shared_ptr.hpp"
+#include "nlohmann/json.hpp"
 
 #include <algorithm>
 #include <utility>
@@ -96,6 +97,9 @@ namespace cfg
 			return {};
 		}
 
+		virtual nlohmann::json to_json() const = 0;
+		virtual bool from_json(const nlohmann::json &, bool dynamic = false) = 0;
+
 		// Convert default to string (optional)
 		virtual std::string def_to_string() const
 		{
@@ -145,9 +149,11 @@ namespace cfg
 
 		// Serialize node
 		std::string to_string() const override;
+		nlohmann::json to_json() const override;
 
 		// Deserialize node
 		bool from_string(std::string_view value, bool dynamic = false) override;
+		bool from_json(const nlohmann::json &, bool dynamic = false) override;
 
 		// Set default values
 		void from_default() override;
@@ -184,6 +190,16 @@ namespace cfg
 			return m_value ? "true" : "false";
 		}
 
+		nlohmann::json to_json() const override
+		{
+			return
+			{ 
+				{"type", "bool"},
+				{"value", m_value.load()},
+				{"default", def},
+			};
+		}
+
 		std::string def_to_string() const override
 		{
 			return def ? "true" : "false";
@@ -209,6 +225,17 @@ namespace cfg
 			return true;
 		}
 
+		bool from_json(const nlohmann::json &json, bool) override
+		{
+			if (!json.is_boolean())
+			{
+				return false;
+			}
+
+			m_value = json.get<nlohmann::json::boolean_t>();
+			return true;
+		}
+
 		void set(const bool& value)
 		{
 			m_value = value;
@@ -263,6 +290,17 @@ namespace cfg
 			return result; // TODO: ???
 		}
 
+		nlohmann::json to_json() const override
+		{
+			return
+			{ 
+				{"type", "enum"},
+				{"value", to_string()},
+				{"default", def_to_string()},
+				{"variants", to_list()},
+			};
+		}
+
 		std::string def_to_string() const override
 		{
 			std::string result;
@@ -284,6 +322,16 @@ namespace cfg
 			return false;
 		}
 
+		bool from_json(const nlohmann::json &json, bool dynamic) override
+		{
+			if (!json.is_string())
+			{
+				return false;
+			}
+
+			return from_string(json.get<nlohmann::json::string_t>(), dynamic);
+		}
+
 		std::vector<std::string> to_list() const override
 		{
 			return try_to_enum_list(&fmt_class_string<T>::format);
@@ -335,6 +383,18 @@ namespace cfg
 			return std::to_string(m_value);
 		}
 
+		nlohmann::json to_json() const override
+		{
+			return
+			{ 
+				{"type", "int"},
+				{"value", m_value.load()},
+				{"default", def},
+				{"min", min},
+				{"man", max},
+			};
+		}
+
 		std::string def_to_string() const override
 		{
 			return std::to_string(def);
@@ -352,6 +412,23 @@ namespace cfg
 			return false;
 		}
 
+		bool from_json(const nlohmann::json &json, bool) override
+		{
+			if (!json.is_number_integer())
+			{
+				return false;
+			}
+
+			auto value = json.get<nlohmann::json::number_integer_t>();
+			if (value < min || value > max)
+			{
+				return false;
+			}
+
+			m_value = value;
+			return true;
+		}
+
 		void set(const s64& value)
 		{
 			ensure(value >= Min && value <= Max);
@@ -413,6 +490,18 @@ namespace cfg
 			return "0.0";
 		}
 
+		nlohmann::json to_json() const override
+		{
+			return
+			{ 
+				{"type", "float"},
+				{"value", m_value.load()},
+				{"default", def},
+				{"min", min},
+				{"man", max},
+			};
+		}
+
 		std::string def_to_string() const override
 		{
 			std::string result;
@@ -436,6 +525,23 @@ namespace cfg
 			return false;
 		}
 
+		bool from_json(const nlohmann::json &json, bool) override
+		{
+			if (!json.is_number_float())
+			{
+				return false;
+			}
+
+			auto value = json.get<nlohmann::json::number_float_t>();
+			if (value < min || value > max)
+			{
+				return false;
+			}
+
+			m_value = value;
+			return true;
+		}
+
 		void set(const f64& value)
 		{
 			ensure(value >= Min && value <= Max);
@@ -499,6 +605,18 @@ namespace cfg
 			return std::to_string(m_value);
 		}
 
+		nlohmann::json to_json() const override
+		{
+			return
+			{ 
+				{"type", "uint"},
+				{"value", m_value.load()},
+				{"default", def},
+				{"min", min},
+				{"man", max},
+			};
+		}
+
 		std::string def_to_string() const override
 		{
 			return std::to_string(def);
@@ -516,6 +634,23 @@ namespace cfg
 			return false;
 		}
 
+		bool from_json(const nlohmann::json &json, bool) override
+		{
+			if (!json.is_number_unsigned())
+			{
+				return false;
+			}
+
+			auto value = json.get<nlohmann::json::number_unsigned_t>();
+			if (value < min || value > max)
+			{
+				return false;
+			}
+
+			m_value = value;
+			return true;
+		}
+
 		void set(const u64& value)
 		{
 			ensure(value >= Min && value <= Max);
@@ -561,6 +696,16 @@ namespace cfg
 			return *m_value.load().get();
 		}
 
+		nlohmann::json to_json() const override
+		{
+			return
+			{ 
+				{"type", "string"},
+				{"value", to_string()},
+				{"default", def_to_string()},
+			};
+		}
+
 		std::string def_to_string() const override
 		{
 			return def;
@@ -571,6 +716,17 @@ namespace cfg
 			m_value = std::string(value);
 			return true;
 		}
+
+		bool from_json(const nlohmann::json &json, bool) override
+		{
+			if (!json.is_string())
+			{
+				return false;
+			}
+
+			m_value = json.get<nlohmann::json::string_t>();
+			return true;
+		}
 	};
 
 	// Simple set entry (TODO: template for various types)
@@ -602,12 +758,46 @@ namespace cfg
 			return { m_set.begin(), m_set.end() };
 		}
 
+		nlohmann::json to_json() const override
+		{
+			return
+			{ 
+				{"type", "set"},
+				{"value", to_list()},
+			};
+		}
+
 		bool from_list(std::vector<std::string>&& list) override
 		{
 			m_set = { std::make_move_iterator(list.begin()), std::make_move_iterator(list.end()) };
 
 			return true;
 		}
+
+		bool from_json(const nlohmann::json &json, bool) override
+		{
+			if (!json.is_array())
+			{
+				return false;
+			}
+
+			auto array = json.get<nlohmann::json::array_t>();
+
+			std::vector<std::string> string_array;
+			string_array.reserve(array.size());
+
+			for (auto &elem : array)
+			{
+				if (!elem.is_string())
+				{
+					return false;
+				}
+
+				string_array.push_back(elem.get<nlohmann::json::string_t>());
+			}
+
+			return from_list(std::move(string_array));
+		}
 	};
 
 	template<typename T>
@@ -628,6 +818,31 @@ namespace cfg
 			return m_map;
 		}
 
+		nlohmann::json to_json() const override
+		{
+			return
+			{ 
+				{"type", "map"},
+				{"value", m_map},
+			};
+		}
+
+
+		bool from_json(const nlohmann::json &json, bool) override
+		{
+			if (!json.is_object())
+			{
+				return false;
+			}
+
+			for (auto &elem : json.get<nlohmann::json::object_t>())
+			{
+				set_value(elem.first, elem.second);
+			}
+
+			return true;
+		}
+
 		std::string get_value(std::string_view key);
 
 		void set_value(std::string key, std::string value);
@@ -662,6 +877,57 @@ namespace cfg
 			return m_map;
 		}
 
+		nlohmann::json to_json() const override
+		{
+			auto levels = try_to_enum_list(&fmt_class_string<logs::level>::format);
+			auto values = nlohmann::json::object();
+			for (auto [key, level] : m_map)
+			{
+				std::string level_string;
+				fmt_class_string<logs::level>::format(level_string, fmt_unveil<logs::level>::get(level));
+				values[key] = level_string;
+			}
+
+			return
+			{ 
+				{"type", "log_map"},
+				{"values", values},
+				{"levels", levels},
+			};
+		}
+
+		bool from_json(const nlohmann::json &json, bool) override
+		{
+			if (!json.is_object())
+			{
+				return false;
+			}
+
+			for  (auto [key, valueString] : json.get<nlohmann::json::object_t>())
+			{
+				if (!valueString.is_string())
+				{
+					continue;
+				}
+
+				logs::level value;
+
+				if (u64 int_value;
+					try_to_enum_value(&int_value, &fmt_class_string<logs::level>::format, valueString.get<std::string>()))
+				{
+					value = static_cast<logs::level>(static_cast<std::underlying_type_t<logs::level>>(int_value));
+				}
+				else
+				{
+					continue;
+				}
+
+				m_map[key] = value;
+			}
+
+			return true;
+		}
+
 		void set_map(map_of_type<logs::level>&& map);
 
 		void from_default() override;
@@ -674,6 +940,61 @@ namespace cfg
 		std::string vid;
 		std::string pid;
 		std::pair<u16, u16> get_usb_ids() const;
+
+		nlohmann::json to_json() const
+		{
+			return {
+				{"path", path},
+				{"serial", serial},
+				{"vid", vid},
+				{"pid", pid},
+			};
+		}
+
+		bool from_json(const nlohmann::json &json)
+		{
+			if (json.contains("path"))
+			{
+				if (!json["path"].is_string())
+				{
+					return false;
+				}
+
+				path = json["path"];
+			}
+
+			if (json.contains("serial"))
+			{
+				if (!json["serial"].is_string())
+				{
+					return false;
+				}
+
+				path = json["serial"];
+			}
+
+			if (json.contains("vid"))
+			{
+				if (!json["vid"].is_string())
+				{
+					return false;
+				}
+
+				path = json["vid"];
+			}
+
+			if (json.contains("pid"))
+			{
+				if (!json["pid"].is_string())
+				{
+					return false;
+				}
+
+				path = json["pid"];
+			}
+
+			return true;
+		}
 	};
 
 	class device_entry final : public _base
@@ -689,6 +1010,16 @@ namespace cfg
 			m_default = m_map;
 		}
 
+		nlohmann::json to_json() const override
+		{
+			return {};
+		}
+
+		bool from_json(const nlohmann::json &, bool) override
+		{
+			return false;
+		}
+
 		const map_of_type<device_info>& get_map() const
 		{
 			return m_map;

rpcs3/Emu/CMakeLists.txt

@@ -173,19 +173,12 @@ endif()
 
 target_link_libraries(rpcs3_emu
     PUBLIC
-        3rdparty::openal)
-
-target_link_libraries(rpcs3_emu
-    PUBLIC
-        3rdparty::cubeb)
-
-target_link_libraries(rpcs3_emu
-    PUBLIC
-        3rdparty::soundtouch)
-
-target_link_libraries(rpcs3_emu
-    PUBLIC
-        3rdparty::miniupnpc)
+        3rdparty::openal
+        3rdparty::cubeb
+        3rdparty::soundtouch
+        3rdparty::miniupnpc
+        3rdparty::json
+)
 
 # Cell
 target_sources(rpcs3_emu PRIVATE