Add new typemap for always existing objects

Not to be confused with singletons or global variables.

rpcs3/Emu/Cell/SPUASMJITRecompiler.cpp

@@ -41,7 +41,7 @@ void spu_recompiler::init()
 	if (!m_spurt)
 	{
 		m_cache = fxm::get<spu_cache>();
-		m_spurt = fxm::get_always<spu_runtime>();
+		m_spurt = g_fxo->get<spu_runtime>();
 	}
 }
 

rpcs3/Emu/Cell/SPURecompiler.cpp

@@ -538,8 +538,6 @@ spu_runtime::spu_runtime()
 		fs::file(m_cache_path + "spu.log", fs::rewrite);
 		fs::file(m_cache_path + "spu-ir.log", fs::rewrite);
 	}
-
-	LOG_SUCCESS(SPU, "SPU Recompiler Runtime initialized...");
 }
 
 bool spu_runtime::add(u64 last_reset_count, void* _where, spu_function_t compiled)
@@ -4165,7 +4163,7 @@ public:
 		if (!m_spurt)
 		{
 			m_cache = fxm::get<spu_cache>();
-			m_spurt = fxm::get_always<spu_runtime>();
+			m_spurt = g_fxo->get<spu_runtime>();
 			cpu_translator::initialize(m_jit.get_context(), m_jit.get_engine());
 
 			const auto md_name = llvm::MDString::get(m_context, "branch_weights");

rpcs3/Emu/Cell/SPURecompiler.h

@@ -76,6 +76,10 @@ public:
 public:
 	spu_runtime();
 
+	spu_runtime(const spu_runtime&) = delete;
+
+	spu_runtime& operator=(const spu_runtime&) = delete;
+
 	const std::string& get_cache_path() const
 	{
 		return m_cache_path;
@@ -226,7 +230,7 @@ public:
 	};
 
 protected:
-	std::shared_ptr<spu_runtime> m_spurt;
+	spu_runtime* m_spurt{};
 
 	u32 m_pos;
 	u32 m_size;

rpcs3/Emu/IdManager.h

@@ -785,6 +785,7 @@ public:
 };
 
 #include "Utilities/typemap.h"
+#include "util/fixed_typemap.hpp"
 
 extern utils::typemap g_typemap;
 
@@ -793,3 +794,7 @@ constexpr utils::typemap* g_idm = &g_typemap;
 using utils::id_new;
 using utils::id_any;
 using utils::id_always;
+
+extern stx::manual_fixed_typemap<void> g_fixed_typemap;
+
+constexpr stx::manual_fixed_typemap<void>* g_fxo = &g_fixed_typemap;

rpcs3/Emu/System.cpp

@@ -46,6 +46,8 @@
 #include "Emu/RSX/VK/VulkanAPI.h"
 #endif
 
+stx::manual_fixed_typemap<void> g_fixed_typemap;
+
 utils::typemap g_typemap{nullptr};
 
 cfg_root g_cfg;
@@ -318,6 +320,7 @@ void Emulator::Init()
 	idm::init();
 	fxm::init();
 	g_idm->init();
+	g_fxo->reset();
 
 	// Reset defaults, cache them
 	g_cfg.from_default();
@@ -1511,6 +1514,7 @@ void Emulator::Load(const std::string& title_id, bool add_only, bool force_globa
 				LOG_NOTICE(LOADER, "Cache: %s", _main->cache);
 			}
 
+			g_fxo->init();
 			fxm::import<GSRender>(Emu.GetCallbacks().get_gs_render); // TODO: must be created in appropriate sys_rsx syscall
 			fxm::import<pad_thread>(Emu.GetCallbacks().get_pad_handler, m_title_id);
 			network_thread_init();
@@ -1735,6 +1739,7 @@ void Emulator::Stop(bool restart)
 	idm::clear();
 	fxm::clear();
 	g_idm->init();
+	g_fxo->reset();
 
 	LOG_NOTICE(GENERAL, "Objects cleared...");
 

rpcs3/util/fixed_typemap.hpp

@@ -0,0 +1,118 @@
+#pragma once
+
+#include <memory>
+#include <utility>
+#include <type_traits>
+#include <util/typeindices.hpp>
+
+namespace stx
+{
+	// Typemap with exactly one object of each used type, created on init() and destroyed on clear()
+	template <typename /*Tag*/>
+	class manual_fixed_typemap
+	{
+		// Save default constructor and destructor
+		struct typeinfo
+		{
+			void(*create)(void*& ptr) noexcept;
+			void(*destroy)(void*& ptr) noexcept;
+
+			template <typename T>
+			static void call_ctor(void*& ptr) noexcept
+			{
+				// Call default constructor only if available
+				if constexpr (std::is_default_constructible_v<T>)
+				{
+					// Don't overwrite if already exists
+					if (!ptr)
+					{
+						ptr = new T{};
+					}
+				}
+			}
+
+			template <typename T>
+			static void call_dtor(void*& ptr) noexcept
+			{
+				delete static_cast<T*>(ptr);
+				ptr = nullptr;
+			}
+
+			template <typename T>
+			static typeinfo make_typeinfo()
+			{
+				typeinfo r;
+				r.create = &call_ctor<T>;
+				r.destroy = &call_dtor<T>;
+				return r;
+			}
+		};
+
+		std::unique_ptr<void*[]> m_list;
+
+	public:
+		constexpr manual_fixed_typemap() noexcept = default;
+
+		manual_fixed_typemap(const manual_fixed_typemap&) = delete;
+
+		manual_fixed_typemap(manual_fixed_typemap&& r) noexcept
+		{
+			std::swap(m_list, r.m_list);
+		}
+
+		manual_fixed_typemap& operator=(const manual_fixed_typemap&) = delete;
+
+		manual_fixed_typemap& operator=(manual_fixed_typemap&& r) noexcept
+		{
+			manual_fixed_typemap x(std::move(*this));
+			std::swap(m_list, x.m_list);
+		}
+
+		// Destroy all objects and keep them in uninitialized state, must be called first
+		void reset() noexcept
+		{
+			if (!m_list)
+			{
+				m_list = std::make_unique<void*[]>(stx::typeinfo_v<typeinfo>.count());
+				return;
+			}
+
+			for (auto& type : stx::typeinfo_v<typeinfo>)
+			{
+				type.destroy(m_list[type.index()]);
+			}
+		}
+
+		// Default initialize all objects if possible and not already initialized
+		void init() noexcept
+		{
+			for (auto& type : stx::typeinfo_v<typeinfo>)
+			{
+				type.create(m_list[type.index()]);
+			}
+		}
+
+		// Explicitly (re)initialize object of type T possibly with dynamic type As and arguments
+		template <typename T, typename As = T, typename... Args>
+		T* init(Args&&... args) noexcept
+		{
+			auto& ptr = m_list[stx::type_counter<typeinfo>::template type<std::decay_t<T>>.index()];
+
+			if (ptr)
+			{
+				delete static_cast<T*>(ptr);
+			}
+
+			auto* obj = static_cast<T*>(new std::decay_t<As>(std::forward<Args>(args)...));
+			ptr = obj;
+			return obj;
+		}
+
+		// Obtain object pointer (the only thread safe function)
+		template <typename T>
+		T* get() const noexcept
+		{
+			return static_cast<T*>(m_list[stx::type_counter<typeinfo>::template type<std::decay_t<T>>.index()]);
+		}
+	};
+}