Core: Avoid (Some) Global System Accessor

Source/Android/jni/MainAndroid.cpp

@@ -258,7 +258,7 @@ JNIEXPORT void JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_PauseEmulati
 JNIEXPORT void JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_StopEmulation(JNIEnv*, jclass)
 {
   HostThreadLock guard;
-  Core::Stop();
+  Core::Stop(Core::System::GetInstance());
 
   // Kick the waiting event
   s_update_main_frame_event.Set();
@@ -586,11 +586,11 @@ static void Run(JNIEnv* env, std::unique_ptr<BootParameters>&& boot, bool riivol
     host_identity_guard.Unlock();
     s_update_main_frame_event.Wait();
     host_identity_guard.Lock();
-    Core::HostDispatchJobs();
+    Core::HostDispatchJobs(Core::System::GetInstance());
   }
 
   s_game_metadata_is_valid = false;
-  Core::Shutdown();
+  Core::Shutdown(Core::System::GetInstance());
   host_identity_guard.Unlock();
 
   env->CallStaticVoidMethod(IDCache::GetNativeLibraryClass(),

Source/Core/Core/BootManager.cpp

@@ -146,7 +146,7 @@ bool BootCore(Core::System& system, std::unique_ptr<BootParameters> boot,
 
   system.Initialize();
 
-  Core::UpdateWantDeterminism(/*initial*/ true);
+  Core::UpdateWantDeterminism(system, /*initial*/ true);
 
   if (system.IsWii())
   {

Source/Core/Core/ConfigManager.cpp

@@ -190,7 +190,7 @@ void SConfig::SetRunningGameMetadata(const std::string& game_id, const std::stri
   Host_TitleChanged();
   if (Core::IsRunning())
   {
-    Core::UpdateTitle();
+    Core::UpdateTitle(system);
   }
 
   Config::AddLayer(ConfigLoaders::GenerateGlobalGameConfigLoader(game_id, revision));

Source/Core/Core/Core.cpp

@@ -120,7 +120,7 @@ static std::unique_ptr<MemoryWatcher> s_memory_watcher;
 
 struct HostJob
 {
-  std::function<void()> job;
+  std::function<void(Core::System&)> job;
   bool run_after_stop;
 };
 static std::mutex s_host_jobs_lock;
@@ -166,13 +166,13 @@ void FrameUpdateOnCPUThread()
     NetPlay::NetPlayClient::SendTimeBase();
 }
 
-void OnFrameEnd()
+void OnFrameEnd(Core::System& system)
 {
 #ifdef USE_MEMORYWATCHER
   if (s_memory_watcher)
   {
     ASSERT(IsCPUThread());
-    CPUThreadGuard guard(Core::System::GetInstance());
+    const CPUThreadGuard guard(system);
 
     s_memory_watcher->Step(guard);
   }
@@ -252,7 +252,7 @@ bool Init(Core::System& system, std::unique_ptr<BootParameters> boot, const Wind
   }
 
   // Drain any left over jobs
-  HostDispatchJobs();
+  HostDispatchJobs(system);
 
   INFO_LOG_FMT(BOOT, "Starting core = {} mode", system.IsWii() ? "Wii" : "GameCube");
   INFO_LOG_FMT(BOOT, "CPU Thread separate = {}", system.IsDualCoreMode() ? "Yes" : "No");
@@ -284,7 +284,7 @@ static void ResetRumble()
 }
 
 // Called from GUI thread
-void Stop()  // - Hammertime!
+void Stop(Core::System& system)  // - Hammertime!
 {
   if (GetState() == State::Stopping || GetState() == State::Uninitialized)
     return;
@@ -299,9 +299,7 @@ void Stop()  // - Hammertime!
   CallOnStateChangedCallbacks(State::Stopping);
 
   // Dump left over jobs
-  HostDispatchJobs();
-
-  auto& system = Core::System::GetInstance();
+  HostDispatchJobs(system);
 
   system.GetFifo().EmulatorState(false);
 
@@ -359,7 +357,7 @@ static void CPUSetInitialExecutionState(bool force_paused = false)
 {
   // The CPU starts in stepping state, and will wait until a new state is set before executing.
   // SetState must be called on the host thread, so we defer it for later.
-  QueueHostJob([force_paused]() {
+  QueueHostJob([force_paused](Core::System&) {
     bool paused = SConfig::GetInstance().bBootToPause || force_paused;
     SetState(paused ? State::Paused : State::Running);
     Host_UpdateDisasmDialog();
@@ -663,7 +661,7 @@ static void EmuThread(Core::System& system, std::unique_ptr<BootParameters> boot
     system.GetPowerPC().SetMode(PowerPC::CoreMode::Interpreter);
   }
 
-  UpdateTitle();
+  UpdateTitle(system);
 
   // ENTER THE VIDEO THREAD LOOP
   if (system.IsDualCoreMode())
@@ -936,13 +934,12 @@ void Callback_NewField(Core::System& system)
 #endif  // USE_RETRO_ACHIEVEMENTS
 }
 
-void UpdateTitle()
+void UpdateTitle(Core::System& system)
 {
   // Settings are shown the same for both extended and summary info
   const std::string SSettings = fmt::format(
-      "{} {} | {} | {}", Core::System::GetInstance().GetPowerPC().GetCPUName(),
-      Core::System::GetInstance().IsDualCoreMode() ? "DC" : "SC", g_video_backend->GetDisplayName(),
-      Config::Get(Config::MAIN_DSP_HLE) ? "HLE" : "LLE");
+      "{} {} | {} | {}", system.GetPowerPC().GetCPUName(), system.IsDualCoreMode() ? "DC" : "SC",
+      g_video_backend->GetDisplayName(), Config::Get(Config::MAIN_DSP_HLE) ? "HLE" : "LLE");
 
   std::string message = fmt::format("{} | {}", Common::GetScmRevStr(), SSettings);
   if (Config::Get(Config::MAIN_SHOW_ACTIVE_TITLE))
@@ -955,7 +952,7 @@ void UpdateTitle()
   Host_UpdateTitle(message);
 }
 
-void Shutdown()
+void Shutdown(Core::System& system)
 {
   // During shutdown DXGI expects us to handle some messages on the UI thread.
   // Therefore we can't immediately block and wait for the emu thread to shut
@@ -967,7 +964,7 @@ void Shutdown()
     s_emu_thread.join();
 
   // Make sure there's nothing left over in case we're about to exit.
-  HostDispatchJobs();
+  HostDispatchJobs(system);
 }
 
 int AddOnStateChangedCallback(StateChangedCallbackFunc callback)
@@ -1004,12 +1001,11 @@ void CallOnStateChangedCallbacks(Core::State state)
   }
 }
 
-void UpdateWantDeterminism(bool initial)
+void UpdateWantDeterminism(Core::System& system, bool initial)
 {
   // For now, this value is not itself configurable.  Instead, individual
   // settings that depend on it, such as GPU determinism mode. should have
   // override options for testing,
-  auto& system = Core::System::GetInstance();
   bool new_want_determinism = system.GetMovie().IsMovieActive() || NetPlay::IsNetPlayRunning();
   if (new_want_determinism != s_wants_determinism || initial)
   {
@@ -1030,7 +1026,7 @@ void UpdateWantDeterminism(bool initial)
   }
 }
 
-void QueueHostJob(std::function<void()> job, bool run_during_stop)
+void QueueHostJob(std::function<void(Core::System&)> job, bool run_during_stop)
 {
   if (!job)
     return;
@@ -1046,7 +1042,7 @@ void QueueHostJob(std::function<void()> job, bool run_during_stop)
     Host_Message(HostMessageID::WMUserJobDispatch);
 }
 
-void HostDispatchJobs()
+void HostDispatchJobs(Core::System& system)
 {
   // WARNING: This should only run on the Host Thread.
   // NOTE: This function is potentially re-entrant. If a job calls
@@ -1066,7 +1062,7 @@ void HostDispatchJobs()
       continue;
 
     guard.unlock();
-    job.job();
+    job.job(system);
     guard.lock();
   }
 }

Source/Core/Core/Core.h

@@ -125,8 +125,8 @@ private:
 };
 
 bool Init(Core::System& system, std::unique_ptr<BootParameters> boot, const WindowSystemInfo& wsi);
-void Stop();
-void Shutdown();
+void Stop(Core::System& system);
+void Shutdown(Core::System& system);
 
 void DeclareAsCPUThread();
 void UndeclareAsCPUThread();
@@ -157,7 +157,7 @@ void SaveScreenShot(std::string_view name);
 void DisplayMessage(std::string message, int time_in_ms);
 
 void FrameUpdateOnCPUThread();
-void OnFrameEnd();
+void OnFrameEnd(Core::System& system);
 
 // Run a function as the CPU thread.
 //
@@ -181,7 +181,7 @@ bool RemoveOnStateChangedCallback(int* handle);
 void CallOnStateChangedCallbacks(Core::State state);
 
 // Run on the Host thread when the factors change. [NOT THREADSAFE]
-void UpdateWantDeterminism(bool initial = false);
+void UpdateWantDeterminism(Core::System& system, bool initial = false);
 
 // Queue an arbitrary function to asynchronously run once on the Host thread later.
 // Threadsafe. Can be called by any thread, including the Host itself.
@@ -192,16 +192,16 @@ void UpdateWantDeterminism(bool initial = false);
 // NOTE: Make sure the jobs check the global state instead of assuming everything is
 //   still the same as when the job was queued.
 // NOTE: Jobs that are not set to run during stop will be discarded instead.
-void QueueHostJob(std::function<void()> job, bool run_during_stop = false);
+void QueueHostJob(std::function<void(Core::System&)> job, bool run_during_stop = false);
 
 // Should be called periodically by the Host to run pending jobs.
 // WMUserJobDispatch will be sent when something is added to the queue.
-void HostDispatchJobs();
+void HostDispatchJobs(Core::System& system);
 
 void DoFrameStep();
 
 void UpdateInputGate(bool require_focus, bool require_full_focus = false);
 
-void UpdateTitle();
+void UpdateTitle(Core::System& system);
 
 }  // namespace Core

Source/Core/Core/HW/VideoInterface.cpp

@@ -841,7 +841,7 @@ void VideoInterfaceManager::EndField(FieldType field, u64 ticks)
 
   g_perf_metrics.CountVBlank();
   VIEndFieldEvent::Trigger();
-  Core::OnFrameEnd();
+  Core::OnFrameEnd(m_system);
 }
 
 // Purpose: Send VI interrupt when triggered

Source/Core/Core/IOS/USB/Bluetooth/BTReal.cpp

@@ -177,7 +177,7 @@ std::optional<IPCReply> BluetoothRealDevice::Open(const OpenRequest& request)
           "The emulated console will now stop.",
           m_last_open_error);
     }
-    Core::QueueHostJob(Core::Stop);
+    Core::QueueHostJob(&Core::Stop);
     return IPCReply(IPC_ENOENT);
   }
 

Source/Core/Core/Movie.cpp

@@ -572,7 +572,7 @@ bool MovieManager::BeginRecordingInput(const ControllerTypeArray& controllers,
     Config::AddLayer(ConfigLoaders::GenerateMovieConfigLoader(&header));
 
     if (Core::IsRunning())
-      Core::UpdateWantDeterminism();
+      Core::UpdateWantDeterminism(m_system);
   };
   Core::RunOnCPUThread(start_recording, true);
 
@@ -958,7 +958,7 @@ bool MovieManager::PlayInput(const std::string& movie_path,
   // Wiimotes cause desync issues if they're not reset before launching the game
   Wiimote::ResetAllWiimotes();
 
-  Core::UpdateWantDeterminism();
+  Core::UpdateWantDeterminism(m_system);
 
   m_temp_input.resize(recording_file.GetSize() - 256);
   recording_file.ReadBytes(m_temp_input.data(), m_temp_input.size());
@@ -1152,7 +1152,7 @@ void MovieManager::LoadInput(const std::string& movie_path)
       if (m_play_mode != PlayMode::Playing)
       {
         m_play_mode = PlayMode::Playing;
-        Core::UpdateWantDeterminism();
+        Core::UpdateWantDeterminism(m_system);
         Core::DisplayMessage("Switched to playback", 2000);
       }
     }
@@ -1161,7 +1161,7 @@ void MovieManager::LoadInput(const std::string& movie_path)
       if (m_play_mode != PlayMode::Recording)
       {
         m_play_mode = PlayMode::Recording;
-        Core::UpdateWantDeterminism();
+        Core::UpdateWantDeterminism(m_system);
         Core::DisplayMessage("Switched to recording", 2000);
       }
     }
@@ -1355,7 +1355,7 @@ void MovieManager::EndPlayInput(bool cont)
     // delete tmpInput;
     // tmpInput = nullptr;
 
-    Core::QueueHostJob([=] { Core::UpdateWantDeterminism(); });
+    Core::QueueHostJob([](Core::System& system) { Core::UpdateWantDeterminism(system); });
   }
 }
 

Source/Core/DolphinNoGUI/MainNoGUI.cpp

@@ -316,9 +316,9 @@ int main(int argc, char* argv[])
 #endif
 
   s_platform->MainLoop();
-  Core::Stop();
+  Core::Stop(Core::System::GetInstance());
 
-  Core::Shutdown();
+  Core::Shutdown(Core::System::GetInstance());
   s_platform.reset();
 
   return 0;

Source/Core/DolphinNoGUI/PlatformFBDev.cpp

@@ -9,6 +9,7 @@
 #include "Core/ConfigManager.h"
 #include "Core/Core.h"
 #include "Core/State.h"
+#include "Core/System.h"
 
 #include <climits>
 #include <cstdio>
@@ -78,7 +79,7 @@ void PlatformFBDev::MainLoop()
   while (IsRunning())
   {
     UpdateRunningFlag();
-    Core::HostDispatchJobs();
+    Core::HostDispatchJobs(Core::System::GetInstance());
 
     // TODO: Is this sleep appropriate?
     std::this_thread::sleep_for(std::chrono::milliseconds(1));

Source/Core/DolphinNoGUI/PlatformHeadless.cpp

@@ -3,7 +3,9 @@
 
 #include <cstdio>
 #include <thread>
+
 #include "Core/Core.h"
+#include "Core/System.h"
 #include "DolphinNoGUI/Platform.h"
 
 namespace
@@ -27,7 +29,7 @@ void PlatformHeadless::MainLoop()
   while (m_running.IsSet())
   {
     UpdateRunningFlag();
-    Core::HostDispatchJobs();
+    Core::HostDispatchJobs(Core::System::GetInstance());
     std::this_thread::sleep_for(std::chrono::milliseconds(100));
   }
 }

Source/Core/DolphinNoGUI/PlatformMacos.mm

@@ -7,6 +7,7 @@
 #include "Core/Config/MainSettings.h"
 #include "Core/Core.h"
 #include "Core/State.h"
+#include "Core/System.h"
 #include "VideoCommon/Present.h"
 #include "VideoCommon/RenderBase.h"
 
@@ -225,7 +226,7 @@ void PlatformMacOS::MainLoop()
   while (IsRunning())
   {
     UpdateRunningFlag();
-    Core::HostDispatchJobs();
+    Core::HostDispatchJobs(Core::System::GetInstance());
     ProcessEvents();
     UpdateWindowPosition();
   }

Source/Core/DolphinNoGUI/PlatformWin32.cpp

@@ -8,6 +8,7 @@
 #include "Core/ConfigManager.h"
 #include "Core/Core.h"
 #include "Core/State.h"
+#include "Core/System.h"
 
 #include <Windows.h>
 #include <climits>
@@ -123,7 +124,7 @@ void PlatformWin32::MainLoop()
   while (IsRunning())
   {
     UpdateRunningFlag();
-    Core::HostDispatchJobs();
+    Core::HostDispatchJobs(Core::System::GetInstance());
     ProcessEvents();
     UpdateWindowPosition();
 

Source/Core/DolphinNoGUI/PlatformX11.cpp

@@ -15,6 +15,7 @@ static constexpr auto X_None = None;
 #include "Core/Config/MainSettings.h"
 #include "Core/Core.h"
 #include "Core/State.h"
+#include "Core/System.h"
 
 #include <climits>
 #include <cstdio>
@@ -151,7 +152,7 @@ void PlatformX11::MainLoop()
   while (IsRunning())
   {
     UpdateRunningFlag();
-    Core::HostDispatchJobs();
+    Core::HostDispatchJobs(Core::System::GetInstance());
     ProcessEvents();
     UpdateWindowPosition();
 

Source/Core/DolphinQt/Main.cpp

@@ -28,6 +28,7 @@
 #include "Core/Config/MainSettings.h"
 #include "Core/Core.h"
 #include "Core/DolphinAnalytics.h"
+#include "Core/System.h"
 
 #include "DolphinQt/Host.h"
 #include "DolphinQt/MainWindow.h"
@@ -179,7 +180,7 @@ int main(int argc, char* argv[])
   // Whenever the event loop is about to go to sleep, dispatch the jobs
   // queued in the Core first.
   QObject::connect(QAbstractEventDispatcher::instance(), &QAbstractEventDispatcher::aboutToBlock,
-                   &app, &Core::HostDispatchJobs);
+                   &app, [] { Core::HostDispatchJobs(Core::System::GetInstance()); });
 
   std::optional<std::string> save_state_path;
   if (options.is_set("save_state"))
@@ -293,7 +294,7 @@ int main(int argc, char* argv[])
     retval = app.exec();
   }
 
-  Core::Shutdown();
+  Core::Shutdown(Core::System::GetInstance());
   UICommon::Shutdown();
   Host::GetInstance()->deleteLater();
 

Source/Core/DolphinQt/MainWindow.cpp

@@ -909,7 +909,7 @@ bool MainWindow::RequestStop()
 {
   if (!Core::IsRunning())
   {
-    Core::QueueHostJob([this] { OnStopComplete(); }, true);
+    Core::QueueHostJob([this](Core::System&) { OnStopComplete(); }, true);
     return true;
   }
 
@@ -1009,7 +1009,7 @@ bool MainWindow::RequestStop()
 
 void MainWindow::ForceStop()
 {
-  Core::Stop();
+  Core::Stop(Core::System::GetInstance());
 }
 
 void MainWindow::Reset()