switch to INI for settings (easier), make settings a singleton thingy, slightly simplify core pause/stop/reset. Drop support for remappable inputs for now

.gitignore

@@ -6,7 +6,7 @@ saves/
 .vscode/
 out/
 *.toml
-*.ini
+imgui.ini
 *.z64
 *.n64
 *.v64

resources/options.ini

@@ -0,0 +1,8 @@
+[general]
+savepath=
+[audio]
+volumel=0.74
+volumer=0.74
+lock=true
+[cpu]
+type=interpreter

src/backend/Core.cpp

@@ -8,16 +8,16 @@ Core::Core() : cpu(std::make_unique<Interpreter>(parallel)) {}
 void Core::Stop() {
   pause = true;
   romLoaded = false;
+  rom = {};
   cpu->Reset();
 }
 
 bool Core::LoadTAS(const fs::path &path) const { return cpu->GetMem().mmio.si.pif.movie.Load(path); }
 
 void Core::LoadROM(const std::string &rom_) {
-  pause = true;
+  Stop();
   rom = rom_;
   cpu->Reset();
-  romLoaded = true;
   
   std::string archive_types[] = {".zip", ".7z", ".rar", ".tar"};
   
@@ -37,6 +37,7 @@ void Core::LoadROM(const std::string &rom_) {
   cpu->GetMem().LoadSRAM(cpu->GetMem().saveType, rom);
   cpu->GetMem().mmio.si.pif.Execute();
   pause = false;
+  romLoaded = true;
 }
 
 void Core::Run(float volumeL, float volumeR) {

src/frontend/AudioSettings.cpp

@@ -1,15 +1,15 @@
 #include <AudioSettings.hpp>
 
-AudioSettings::AudioSettings(nlohmann::json &settings) : settings(settings) {
-  lockChannels.setChecked(JSONGetField<bool>(settings, "audio", "lock"));
-  volumeL.setValue(JSONGetField<float>(settings, "audio", "volumeL") * 100);
-  volumeR.setValue(JSONGetField<float>(settings, "audio", "volumeR") * 100);
+AudioSettings::AudioSettings() {
+  lockChannels.setChecked(Options::GetInstance().GetValue<bool>("audio", "lock"));
+  volumeL.setValue(Options::GetInstance().GetValue<float>("audio", "volumeL") * 100);
+  volumeR.setValue(Options::GetInstance().GetValue<float>("audio", "volumeR") * 100);
 }
 
 bool AudioSettings::render() {
   if(lockChannels.render()) {
     auto isChecked = lockChannels.isChecked();
-    JSONSetField(settings, "audio", "lock", isChecked);
+    Options::GetInstance().SetValue("audio", "lock", isChecked);
     if (isChecked) {
       volumeR.setValue(volumeL.getValue());
     }
@@ -21,10 +21,10 @@ bool AudioSettings::render() {
 
   if(volumeL.render()) {
     float valueL = volumeL.getValue();
-    JSONSetField(settings, "audio", "volumeL", float(valueL) / 100.f);
+    Options::GetInstance().SetValue("audio", "volumeL", float(valueL) / 100.f);
     if (lockChannels.isChecked()) {
       volumeR.setValue(valueL);
-      JSONSetField(settings, "audio", "volumeR", float(valueL) / 100.f);
+      Options::GetInstance().SetValue("audio", "volumeR", float(valueL) / 100.f);
     }
 
     modified = true;
@@ -34,7 +34,7 @@ bool AudioSettings::render() {
 
   if(volumeR.render()) {
     if (!lockChannels.isChecked()) {
-      JSONSetField(settings, "audio", "volumeR", float(volumeR.getValue()) / 100.f);
+      Options::GetInstance().SetValue("audio", "volumeR", float(volumeR.getValue()) / 100.f);
     }
 
     modified = true;

src/frontend/AudioSettings.hpp

@@ -1,5 +1,5 @@
 #pragma once
-#include <JSONUtils.hpp>
+#include <Options.hpp>
 #include <ImGuiImpl/Checkbox.hpp>
 #include <ImGuiImpl/Slider.hpp>
 
@@ -9,9 +9,8 @@ class AudioSettings final {
 public:
   gui::SliderFloat volumeL{"Volume L", 0.f, 100.f, 0.f};
   gui::SliderFloat volumeR{"Volume R", 0.f, 100.f, 0.f};
-  explicit AudioSettings(nlohmann::json &);
+  explicit AudioSettings();
   bool render();
   void setModified(bool v) { modified = v; }
   bool getModified() { return modified; }
-  nlohmann::json &settings;
 };

src/frontend/CMakeLists.txt

@@ -49,6 +49,7 @@ include_directories(
   ../../external/imgui/backends
   ../../external/nfd/src/include
   ../../external/cflags/include
+  ../../external/mINI/src/
   ImGuiImpl/
 )
 
@@ -109,6 +110,7 @@ add_subdirectory(../../external/unarr unarr)
 add_subdirectory(../../external/SDL SDL)
 add_subdirectory(../../external/cflags cflags)
 add_subdirectory(../../external/imgui imgui)
+add_subdirectory(../../external/mINI mINI)
 add_subdirectory(../../external/nfd nfd)
 set(CAPSTONE_ARCHITECTURE_DEFAULT OFF)
 set(CAPSTONE_MIPS_SUPPORT ON)
@@ -127,10 +129,10 @@ add_executable(kaizen
   SettingsWindow.cpp
   CPUSettings.hpp
   CPUSettings.cpp
-  JSONUtils.hpp
   AudioSettings.hpp
   AudioSettings.cpp
   NativeWindow.hpp
+  ../utils/Options.cpp
   Debugger.hpp
   Debugger.cpp)
 

src/frontend/CPUSettings.cpp

@@ -1,9 +1,9 @@
 #include <CPUSettings.hpp>
-#include <JSONUtils.hpp>
+#include <Options.hpp>
 #include <log.hpp>
 
-CPUSettings::CPUSettings(nlohmann::json &settings) : settings(settings) {
-  if (JSONGetField<std::string>(settings, "cpu_type") == "jit") {
+CPUSettings::CPUSettings() {
+  if (Options::GetInstance().GetValue<std::string>("cpu", "type") == "jit") {
     cpuTypes.setCurrentIndex(1);
   } else {
     cpuTypes.setCurrentIndex(0);
@@ -13,7 +13,7 @@ CPUSettings::CPUSettings(nlohmann::json &settings) : settings(settings) {
 bool CPUSettings::render() {
   if(cpuTypes.render()) {
     if(cpuTypes.getCurrentIndex() == 0) {
-      JSONSetField(settings, "cpu_type", "interpreter");
+      Options::GetInstance().SetValue<std::string>("cpu", "type", "interpreter");
     } else {
       Util::panic("JIT should not be selectable??");
     }

src/frontend/CPUSettings.hpp

@@ -1,5 +1,5 @@
 #pragma once
-#include <JSONUtils.hpp>
+#include <Options.hpp>
 #include <ImGuiImpl/Combobox.hpp>
 
 class CPUSettings final {
@@ -7,8 +7,7 @@ class CPUSettings final {
   bool modified = false;
 public:
   bool render();
-  explicit CPUSettings(nlohmann::json &);
+  explicit CPUSettings();
   void setModified(bool v) { modified = v; }
   bool getModified() { return modified; }
-  nlohmann::json &settings;
 };

src/frontend/EmuThread.cpp

@@ -7,7 +7,7 @@ EmuThread::EmuThread(const std::shared_ptr<n64::Core> &core, double &fps, Render
     renderWidget(renderWidget), core(core), settings(settings), fps(fps) {}
 
 void EmuThread::run() noexcept {
-  isRunning = true;
+  if(!core->romLoaded) return;
   
   auto lastSample = std::chrono::high_resolution_clock::now();
   auto avgFps = 16.667;
@@ -49,15 +49,11 @@ void EmuThread::TogglePause() const noexcept {
 }
 
 void EmuThread::Reset() const noexcept {
-  core->pause = true;
   core->Stop();
   core->LoadROM(core->rom);
-  core->pause = false;
 }
 
 void EmuThread::Stop() const noexcept {
   Util::RPC::GetInstance().Update(Util::RPC::Idling);
-  core->rom = {};
-  core->pause = true;
   core->Stop();
 }

src/frontend/EmuThread.hpp

@@ -19,7 +19,7 @@ public:
   void Reset() const noexcept;
   void Stop() const noexcept;
 
-  bool interruptionRequested = false, isRunning = false, parallelRDPInitialized = false;
+  bool interruptionRequested = false, parallelRDPInitialized = false;
   std::shared_ptr<n64::Core> core;
   SettingsWindow &settings;
   double& fps;

src/frontend/JSONUtils.hpp

@@ -1,54 +0,0 @@
-#pragma once
-#include <filesystem>
-#include <fstream>
-#include <nlohmann/json.hpp>
-#include <common.hpp>
-
-namespace fs = std::filesystem;
-
-static FORCE_INLINE nlohmann::json JSONOpenOrCreate(const std::string &path) {
-  auto fileExists = fs::exists(path);
-
-  std::fstream file;
-  nlohmann::json json;
-
-  if (fileExists) {
-    file = std::fstream(path, std::fstream::in | std::fstream::out);
-    json = nlohmann::json::parse(file);
-    file.close();
-    return json;
-  }
-
-  file = std::fstream(path, std::fstream::in | std::fstream::out | std::fstream::trunc);
-  json["general"]["savePath"] = "";
-  json["audio"]["volumeL"] = 0.5;
-  json["audio"]["volumeR"] = 0.5;
-  json["audio"]["lock"] = true;
-  json["cpu_type"] = "interpreter";
-
-  file << json;
-  file.close();
-
-  return json;
-}
-
-template <typename T>
-static FORCE_INLINE void JSONSetField(nlohmann::json &json, const std::string &key, const std::string &field,
-                                      const T &value) {
-  json[key][field] = value;
-}
-
-template <typename T>
-static FORCE_INLINE T JSONGetField(nlohmann::json &json, const std::string &key, const std::string &field) {
-  return json[key][field].get<T>();
-}
-
-template <typename T>
-static FORCE_INLINE void JSONSetField(nlohmann::json &json, const std::string &key, const T &value) {
-  json[key] = value;
-}
-
-template <typename T>
-static FORCE_INLINE T JSONGetField(nlohmann::json &json, const std::string &key) {
-  return json[key].get<T>();
-}

src/frontend/KaizenGui.cpp

@@ -3,6 +3,7 @@
 #include <backend/Core.hpp>
 #include <ImGuiImpl/StatusBar.hpp>
 #include <ImGuiImpl/GUI.hpp>
+#include <resources/gamecontrollerdb.h>
 
 bool HandleInput(void *userdata, SDL_Event *event);
 bool QueryDevices(void *userdata, SDL_Event *event);
@@ -10,6 +11,7 @@ bool QueryDevices(void *userdata, SDL_Event *event);
 KaizenGui::KaizenGui() noexcept : window("Kaizen", 800, 600), core(std::make_shared<n64::Core>()), vulkanWidget(core, window.getHandle()), emuThread(core, fpsCounter, vulkanWidget, settingsWindow) {  
   gui::Initialize(core->parallel.wsi, window.getHandle());
 
+  SDL_AddGamepadMapping(gamecontrollerdb_str);
   SDL_AddEventWatch(HandleInput, this);
   SDL_AddEventWatch(QueryDevices, this);
   
@@ -59,6 +61,7 @@ KaizenGui::KaizenGui() noexcept : window("Kaizen", 800, 600), core(std::make_sha
         if(result == NFD_CANCEL) return;
         if(result == NFD_ERROR)
           Util::panic("Error: {}", NFD::GetError());
+        
         LoadROM(path.get());
       }},
       {"Exit", [&]() {
@@ -233,7 +236,6 @@ void KaizenGui::LoadROM(const std::string &path) noexcept {
 
 void KaizenGui::run() {
   while(!quit) {
-    emuThread.run();
     SDL_Event e;
     while (SDL_PollEvent(&e)) {
       ImGui_ImplSDL3_ProcessEvent(&e);
@@ -245,6 +247,7 @@ void KaizenGui::run() {
       }
     }
 
+    emuThread.run();
     RenderUI();
   }
 }

src/frontend/RenderWidget.hpp

@@ -25,10 +25,7 @@ private:
 class SDLWSIPlatform final : public Vulkan::WSIPlatform {
 public:
   explicit SDLWSIPlatform(const std::shared_ptr<n64::Core> &core, SDL_Window* window) : window(window), core(core) {}
-  ~SDLWSIPlatform() {
-    if(gamepadConnected)
-      SDL_CloseGamepad(gamepad);
-  }
+  ~SDLWSIPlatform() = default;
 
   std::vector<const char *> get_instance_extensions() override {
     auto vec = std::vector<const char *>();
@@ -71,7 +68,6 @@ public:
   VkSurfaceKHR surface;
 private:
   std::shared_ptr<n64::Core> core;
-  SDL_Gamepad *gamepad{};
   bool gamepadConnected = false;
 };
 

src/frontend/SettingsWindow.cpp

@@ -2,13 +2,13 @@
 #include <fmt/core.h>
 #include <nfd.hpp>
 #include <log.hpp> 
-#include <JSONUtils.hpp>
+#include <Options.hpp>
 
 std::string savePath;
 
-SettingsWindow::SettingsWindow() : settings{JSONOpenOrCreate("resources/settings.json")}, cpuSettings{settings}, audioSettings{settings} {
+SettingsWindow::SettingsWindow() {
   savesFolder.setName(fmt::format("Save path: {}",
-                      JSONGetField<std::string>(settings, "general", "savePath")));
+                      Options::GetInstance().GetValue<std::string>("general", "savePath")));
 
   tabs.addTab({"General", [&]() {
     if(savesFolder.render()) {
@@ -22,7 +22,7 @@ SettingsWindow::SettingsWindow() : settings{JSONOpenOrCreate("resources/settings
         Util::panic("Error: {}", NFD::GetError());
 
       savesFolder.setName(fmt::format("Save path: {}", outPath.get()));
-      JSONSetField(settings, "general", "savePath", outPath.get());
+      Options::GetInstance().SetValue<std::string>("general", "savePath", outPath.get());
       apply.setEnabled(true);
     }
   }}); 
@@ -48,9 +48,7 @@ SettingsWindow::SettingsWindow() : settings{JSONOpenOrCreate("resources/settings
 
     if(apply.render()) {
       apply.setEnabled(false);
-      std::ofstream file("resources/settings.json");
-      file << settings;
-      file.close();
+      Options::GetInstance().Apply();
     }
   
     ImGui::SameLine();

src/frontend/SettingsWindow.hpp

@@ -9,7 +9,6 @@
 
 class SettingsWindow final {
   gui::PushButton apply{"Apply", "", false}, savesFolder{"Open", "Save path: {}"};
-  nlohmann::json settings;
   CPUSettings cpuSettings;
   AudioSettings audioSettings;
 public:

src/utils/Options.cpp

@@ -0,0 +1,31 @@
+#include <Options.hpp>
+
+template <>
+void Options::SetValue<std::string>(const std::string &key, const std::string &field, const std::string &value) {
+    structure[key][field] = value;
+}
+
+template <>
+void Options::SetValue<float>(const std::string &key, const std::string &field, const float &value) {
+    structure[key][field] = fmt::format("{:.2f}", value);
+}
+
+template <>
+void Options::SetValue<bool>(const std::string &key, const std::string &field, const bool &value) {
+    structure[key][field] = value ? "true" : "false";
+}
+
+template<>
+std::string Options::GetValue<std::string>(const std::string &key, const std::string &field) {
+    return structure[key][field];
+}
+
+template<>
+float Options::GetValue<float>(const std::string &key, const std::string &field) {
+    return std::stof(structure[key][field]);
+}
+
+template<>
+bool Options::GetValue<bool>(const std::string &key, const std::string &field) {
+    return structure[key][field] == "true" ? true : false;
+}

src/utils/Options.hpp

@@ -2,48 +2,44 @@
 #include <filesystem>
 #include <fstream>
 #include <common.hpp>
+#include <mini/ini.h>
+#include <log.hpp>
 
 namespace fs = std::filesystem;
 
-static FORCE_INLINE mINI::INIStructure JSONOpenOrCreate(const std::string &path) {
-  auto fileExists = fs::exists(path);
-
-  mINI::INIStructure options;
-  mINI::INIFile file(path);
-  
+struct Options {
+    Options() : file{"resources/options.ini"} {
+        auto fileExists = fs::exists("resources/options.ini");
         if(fileExists) {
-    file.read(options);
-    return options;
+            file.read(structure);
+            return;
         }
 
-  options["general"]["savePath"] = "";
-  options["audio"]["volumeL"] = 0.5;
-  options["audio"]["volumeR"] = 0.5;
-  options["audio"]["lock"] = true;
-  options["cpu"]["type"] = "interpreter";
+        structure["general"]["savePath"] = "";
+        structure["audio"]["volumeL"] = "0.5";
+        structure["audio"]["volumeR"] = "0.5";
+        structure["audio"]["lock"] = "true";
+        structure["cpu"]["type"] = "interpreter";
 
-  file.write(options);
+        if(!file.generate(structure))
+            Util::panic("Couldn't generate settings' INI!");
+    }
 
-  return options;
+    static Options &GetInstance() {
+        static Options instance;
+        return instance;
     }
 
     template <typename T>
-static FORCE_INLINE void JSONSetField(mINI::INIStructure &options, const std::string &key, const std::string &field,
-                                      const T &value) {
-  options[key][field] = value;
-}
-
+    void SetValue(const std::string &key, const std::string &field, const T &value);
     template <typename T>
-static FORCE_INLINE T JSONGetField(mINI::INIStructure &options, const std::string &key, const std::string &field) {
-  return options[key][field];
-}
+    T GetValue(const std::string &key, const std::string &field);
 
-template <typename T>
-static FORCE_INLINE void JSONSetField(mINI::INIStructure &options, const std::string &key, const T &value) {
-  options[key] = value;
-}
-
-template <typename T>
-static FORCE_INLINE T JSONGetField(mINI::INIStructure &options, const std::string &key) {
-  return options[key];
+    void Apply() {
+        if(!file.write(structure))
+            Util::panic("Could not modify options on disk!");
     }
+private:
+    mINI::INIFile file;
+    mINI::INIStructure structure;
+};