Add config class

.gitmodules

@@ -16,3 +16,6 @@
 [submodule "third_party/xbyak"]
 	path = third_party/xbyak
 	url = https://github.com/herumi/xbyak
+[submodule "third_party/toml11"]
+	path = third_party/toml11
+	url = https://github.com/ToruNiina/toml11

CMakeLists.txt

@@ -41,7 +41,9 @@ set(SDL_STATIC ON CACHE BOOL "" FORCE)
 set(SDL_SHARED OFF CACHE BOOL "" FORCE)
 add_subdirectory(third_party/SDL2)
 add_subdirectory(third_party/glad)
+add_subdirectory(third_party/toml11)
 include_directories(${SDL2_INCLUDE_DIR})
+include_directories(third_party/toml11)
 
 set(BOOST_ROOT "${CMAKE_SOURCE_DIR}/third_party/boost")
 set(Boost_INCLUDE_DIR "${CMAKE_SOURCE_DIR}/third_party/boost")
@@ -83,8 +85,8 @@ else()
     message(FATAL_ERROR "Currently unsupported CPU architecture")
 endif()
 
-set(SOURCE_FILES src/main.cpp src/emulator.cpp src/io_file.cpp src/gl_state.cpp src/core/CPU/cpu_dynarmic.cpp
+set(SOURCE_FILES src/main.cpp src/emulator.cpp src/io_file.cpp src/gl_state.cpp src/config.cpp
-                 src/core/CPU/dynarmic_cycles.cpp src/core/memory.cpp
+                 src/core/CPU/cpu_dynarmic.cpp src/core/CPU/dynarmic_cycles.cpp src/core/memory.cpp
 )
 set(CRYPTO_SOURCE_FILES src/core/crypto/aes_engine.cpp)
 set(KERNEL_SOURCE_FILES src/core/kernel/kernel.cpp src/core/kernel/resource_limits.cpp
@@ -139,6 +141,7 @@ set(HEADER_FILES include/emulator.hpp include/helpers.hpp include/opengl.hpp inc
                  include/result/result_common.hpp include/result/result_fs.hpp include/result/result_fnd.hpp
                  include/result/result_gsp.hpp include/result/result_kernel.hpp include/result/result_os.hpp
                  include/crypto/aes_engine.hpp include/metaprogramming.hpp include/PICA/pica_vertex.hpp include/gl_state.hpp
+                 include/config.hpp
 )
 
 set(THIRD_PARTY_SOURCE_FILES third_party/imgui/imgui.cpp

include/config.hpp

@@ -0,0 +1,10 @@
+#pragma once
+#include <filesystem>
+
+// Remember to initialize everything field here to its default value otherwise bad things will happen
+struct EmulatorConfig {
+	bool shaderJitEnabled = false;
+
+	void load(const std::filesystem::path& path);
+	void save(const std::filesystem::path& path);
+};

include/emulator.hpp

@@ -9,6 +9,7 @@
 
 #include "PICA/gpu.hpp"
 #include "cpu.hpp"
+#include "config.hpp"
 #include "crypto/aes_engine.hpp"
 #include "io_file.hpp"
 #include "memory.hpp"
@@ -24,6 +25,7 @@ class Emulator {
 	Crypto::AESEngine aesEngine;
 
 	GLStateManager gl;
+	EmulatorConfig config;
 	SDL_Window* window;
 	SDL_GLContext glContext;
 	SDL_GameController* gameController = nullptr;
@@ -49,6 +51,7 @@ class Emulator {
 
   public:
 	Emulator();
+	~Emulator();
 
 	void step();
 	void render();

src/config.cpp

@@ -0,0 +1,53 @@
+#include "config.hpp"
+
+#include <fstream>
+
+#include "helpers.hpp"
+#include "toml.hpp"
+
+// Largely based on https://github.com/nba-emu/NanoBoyAdvance/blob/master/src/platform/core/src/config.cpp
+
+void EmulatorConfig::load(const std::filesystem::path& path) {
+	// If the configuration file does not exist, create it and return
+	if (!std::filesystem::exists(path)) {
+		save(path);
+		return;
+	}
+
+	toml::value data;
+
+	try {
+		data = toml::parse(path);
+	} catch (std::exception& ex) {
+		Helpers::warn("Got exception trying to load config file. Exception: %s\n", ex.what());
+		return;
+	}
+
+	if (data.contains("GPU")) {
+		auto gpuResult = toml::expect<toml::value>(data.at("GPU"));
+		if (gpuResult.is_ok()) {
+			auto gpu = gpuResult.unwrap();
+
+			shaderJitEnabled = toml::find_or<toml::boolean>(gpu, "EnableShaderJIT", false);
+		}
+	}
+}
+
+void EmulatorConfig::save(const std::filesystem::path& path) {
+	toml::basic_value<toml::preserve_comments> data;
+
+	if (std::filesystem::exists(path)) {
+		try {
+			data = toml::parse<toml::preserve_comments>(path);
+		} catch (std::exception& ex) {
+			Helpers::warn("Got exception trying to save config file. Exception: %s\n", ex.what());
+			return;
+		}
+	}
+
+	data["GPU"]["EnableShaderJIT"] = shaderJitEnabled;
+
+	std::ofstream file(path, std::ios::out);
+	file << data;
+	file.close();
+}

third_party/toml11

@@ -0,0 +1 @@
+Subproject commit 1340692442b530ada93a63f4b76a1421b3c139fe