Import Strong Logger & Config System

core/Base/Arch.h

@@ -0,0 +1,13 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#if defined(__x86_64__) || defined(_M_X64)
+#define ARCH_X86_64 1
+#elif defined(i386) || defined(__i386__) || defined(__i386) || defined(_M_IX86)
+#define ARCH_X86 1
+#elif defined(__aarch64__) || defined(_M_ARM64)
+#define ARCH_AARCH64 1
+#elif defined(__powerpc) || defined(__powerpc__) || defined(__powerpc64__) || defined(__POWERPC__) || defined(__ppc__) || defined(__PPC__) || defined(_ARCH_PPC)
+#define ARCH_PPC 1
+#endif

core/Base/Assert.cpp

@@ -0,0 +1,54 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#include <stdio.h>
+
+#include "Logging/Backend.h"
+#include "Assert.h"
+#include "Arch.h"
+
+#ifdef  _MSC_VER
+#define Crash() __debugbreak()
+#else
+#if defined(ARCH_X86_64)
+#define Crash() __asm__ __volatile__("int $3")
+#elif defined(ARCH_X86)
+#define Crash() __asm__ __volatile__("int $3")
+#elif defined(ARCH_AARCH64)
+#define Crash() __asm__ __volatile__("brk 0")
+#elif defined(ARCH_PPC)
+#include <signal.h>
+#ifdef SIGTRAP
+#define Crash() raise(SIGTRAP)
+#else
+#define Crash() raise(SIGABRT)
+#endif
+#else
+#define Crash() __builtin_trap()
+#endif
+#endif // _MSVC_VER
+
+void throw_fail_impl() {
+  ::fflush(stdout);
+  Crash();
+}
+
+void assert_fail_impl() {
+  printf("Assertion Failed!\n");
+  throw_fail_impl();
+}
+
+[[noreturn]] void unreachable_impl() {
+  ::fflush(stdout);
+  Crash();
+  throw std::runtime_error("Unreachable code");
+}
+
+void assert_fail_debug_msg(const std::string& msg) {
+  printf("Assertion Failed! %s\n", msg.c_str());
+  assert_fail_impl();
+}
+
+void throw_fail_debug_msg(const std::string& msg) {
+  printf("Assertion Failed! %s\n", msg.c_str());
+  throw_fail_impl();
+}

core/Base/Assert.h

@@ -0,0 +1,101 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include "Logging/Log.h"
+
+// Sometimes we want to try to continue even after hitting an assert.
+// However touching this file yields a global recompilation as this header is included almost
+// everywhere. So let's just move the handling of the failed assert to a single cpp file.
+
+void assert_fail_impl();
+void throw_fail_impl();
+[[noreturn]] void unreachable_impl();
+void assert_fail_debug_msg(const std::string& msg);
+void throw_fail_debug_msg(const std::string& msg);
+
+#ifdef _MSC_VER
+#define POUND_NO_INLINE __declspec(noinline)
+#else
+#define POUND_NO_INLINE __attribute__((noinline))
+#endif
+
+#define THROW(_a_)                                                                           \
+  ([&]() POUND_NO_INLINE {                                                                   \
+    if (!(_a_)) [[unlikely]] {                                                               \
+      LOG_CRITICAL(Debug, "Assertion Failed!");                                              \
+      throw_fail_impl();                                                                     \
+    }                                                                                        \
+  })
+
+#define ASSERT(_a_)                                                                          \
+  ([&]() POUND_NO_INLINE {                                                                   \
+    if (!(_a_)) [[unlikely]] {                                                               \
+      LOG_CRITICAL(Debug, "Assertion Failed!");                                              \
+      assert_fail_impl();                                                                    \
+    }                                                                                        \
+  })
+
+#define THROW_MSG(_a_, ...)                                                                  \
+  ([&]() POUND_NO_INLINE {                                                                   \
+    if (!(_a_)) [[unlikely]] {                                                               \
+      LOG_CRITICAL(Debug, "Assertion Failed!\n" __VA_ARGS__);                                \
+      throw_fail_impl();                                                                     \
+    }                                                                                        \
+  })
+
+#define ASSERT_MSG(_a_, ...)                                                                 \
+  ([&]() POUND_NO_INLINE {                                                                   \
+    if (!(_a_)) [[unlikely]] {                                                               \
+      LOG_CRITICAL(Debug, "Assertion Failed!\n" __VA_ARGS__);                                \
+      assert_fail_impl();                                                                    \
+    }                                                                                        \
+  })
+
+#define UNREACHABLE()                                                                        \
+  do {                                                                                       \
+    LOG_CRITICAL(Debug, "Unreachable code!");                                                \
+    unreachable_impl();                                                                      \
+  } while (0)
+
+#define UNREACHABLE_MSG(...)                                                                 \
+  do {                                                                                       \
+    LOG_CRITICAL(Debug, "Unreachable code!\n" __VA_ARGS__);                                  \
+    unreachable_impl();                                                                      \
+  } while (0)
+
+#ifdef _DEBUG
+#define DEBUG_ASSERT(_a_) ASSERT(_a_)
+#define DEBUG_ASSERT_MSG(_a_, ...) ASSERT_MSG(_a_, __VA_ARGS__)
+#else // not debug
+#define DEBUG_ASSERT(_a_)                                                                    \
+  do {                                                                                       \
+  } while (0)
+#define DEBUG_ASSERT_MSG(_a_, _desc_, ...)                                                   \
+  do {                                                                                       \
+  } while (0)
+#endif
+
+#define UNIMPLEMENTED() THROW_MSG(false, "Unimplemented code!")
+#define UNIMPLEMENTED_MSG(...) THROW_MSG(false, __VA_ARGS__)
+
+#define UNIMPLEMENTED_IF(cond) ASSERT_MSG(!(cond), "Unimplemented code!")
+#define UNIMPLEMENTED_IF_MSG(cond, ...) ASSERT_MSG(!(cond), __VA_ARGS__)
+
+// If the assert is ignored, execute _b_
+#define ASSERT_OR_EXECUTE(_a_, _b_)                                                                \
+  do {                                                                                             \
+    ASSERT(_a_);                                                                                   \
+    if (!(_a_)) [[unlikely]] {                                                                     \
+      _b_                                                                                          \
+    }                                                                                              \
+  } while (0)
+
+// If the assert is ignored, execute _b_
+#define ASSERT_OR_EXECUTE_MSG(_a_, _b_, ...)                                                       \
+  do {                                                                                             \
+    ASSERT_MSG(_a_, __VA_ARGS__);                                                                  \
+    if (!(_a_)) [[unlikely]] {                                                                     \
+      _b_                                                                                          \
+    }                                                                                              \
+  } while (0)

core/Base/BoundedQueue.h

@@ -0,0 +1,242 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include "PolyfillThread.h"
+
+namespace Base {
+
+namespace detail {
+constexpr size_t DefaultCapacity = 0x1000;
+} // namespace detail
+
+template <typename T, size_t Capacity = detail::DefaultCapacity>
+class SPSCQueue {
+  static_assert((Capacity & (Capacity - 1)) == 0, "Capacity must be a power of two.");
+
+public:
+  template <typename... Args>
+  bool TryEmplace(Args&&... args) {
+    return Emplace<PushMode::Try>(std::forward<Args>(args)...);
+  }
+
+  template <typename... Args>
+  void EmplaceWait(Args&&... args) {
+    Emplace<PushMode::Wait>(std::forward<Args>(args)...);
+  }
+
+  bool TryPop(T& t) {
+    return Pop<PopMode::Try>(t);
+  }
+
+  bool PopWait(T& t) {
+    return Pop<PopMode::Wait>(t);
+  }
+
+  bool PopWait(T& t, std::stop_token stopToken) {
+    return Pop<PopMode::WaitWithStopToken>(t, stopToken);
+  }
+
+  T PopWait() {
+    T t;
+    Pop<PopMode::Wait>(t);
+    return t;
+  }
+
+  T PopWait(std::stop_token stopToken) {
+    T t;
+    Pop<PopMode::WaitWithStopToken>(t, stopToken);
+    return t;
+  }
+
+private:
+  enum class PushMode {
+    Try,
+    Wait,
+    Count
+  };
+
+  enum class PopMode {
+    Try,
+    Wait,
+    WaitWithStopToken,
+    Count
+  };
+
+  template <PushMode Mode, typename... Args>
+  bool Emplace(Args&&... args) {
+    const size_t write_index = m_write_index.load(std::memory_order::relaxed);
+
+    if constexpr (Mode == PushMode::Try) {
+      // Check if we have free slots to write to.
+      if ((write_index - m_read_index.load(std::memory_order::acquire)) == Capacity) {
+        return false;
+      }
+    } else if constexpr (Mode == PushMode::Wait) {
+      // Wait until we have free slots to write to.
+      std::unique_lock lock{producer_cv_mutex};
+      producer_cv.wait(lock, [this, write_index] {
+        return (write_index - m_read_index.load(std::memory_order::acquire)) < Capacity;
+      });
+    } else {
+      static_assert(Mode < PushMode::Count, "Invalid PushMode.");
+    }
+
+    // Determine the position to write to.
+    const size_t pos = write_index % Capacity;
+
+    // Emplace into the queue.
+    new (std::addressof(m_data[pos])) T(std::forward<Args>(args)...);
+
+    // Increment the write index.
+    ++m_write_index;
+
+    // Notify the consumer that we have pushed into the queue.
+    std::scoped_lock lock{consumer_cv_mutex};
+    consumer_cv.notify_one();
+
+    return true;
+  }
+
+  template <PopMode Mode>
+  bool Pop(T& t, [[maybe_unused]] std::stop_token stop_token = {}) {
+    const size_t read_index = m_read_index.load(std::memory_order::relaxed);
+
+    if constexpr (Mode == PopMode::Try) {
+      // Check if the queue is empty.
+      if (read_index == m_write_index.load(std::memory_order::acquire)) {
+        return false;
+      }
+    } else if constexpr (Mode == PopMode::Wait) {
+      // Wait until the queue is not empty.
+      std::unique_lock lock{consumer_cv_mutex};
+      consumer_cv.wait(lock, [this, read_index] {
+        return read_index != m_write_index.load(std::memory_order::acquire);
+      });
+    } else if constexpr (Mode == PopMode::WaitWithStopToken) {
+      // Wait until the queue is not empty.
+      std::unique_lock lock{consumer_cv_mutex};
+      Base::CondvarWait(consumer_cv, lock, stop_token, [this, read_index] {
+        return read_index != m_write_index.load(std::memory_order::acquire);
+      });
+      if (stop_token.stop_requested()) {
+        return false;
+      }
+    } else {
+      static_assert(Mode < PopMode::Count, "Invalid PopMode.");
+    }
+
+    // Determine the position to read from.
+    const size_t pos = read_index % Capacity;
+
+    // Pop the data off the queue, moving it.
+    t = std::move(m_data[pos]);
+
+    // Increment the read index.
+    ++m_read_index;
+
+    // Notify the producer that we have popped off the queue.
+    std::scoped_lock lock{producer_cv_mutex};
+    producer_cv.notify_one();
+
+    return true;
+  }
+
+  alignas(128) std::atomic_size_t m_read_index{0};
+  alignas(128) std::atomic_size_t m_write_index{0};
+
+  std::array<T, Capacity> m_data;
+
+  std::condition_variable_any producer_cv;
+  std::mutex producer_cv_mutex;
+  std::condition_variable_any consumer_cv;
+  std::mutex consumer_cv_mutex;
+};
+
+template <typename T, size_t Capacity = detail::DefaultCapacity>
+class MPSCQueue {
+public:
+  template <typename... Args>
+  bool TryEmplace(Args&&... args) {
+    std::scoped_lock lock{writeMutex};
+    return spscQueue.TryEmplace(std::forward<Args>(args)...);
+  }
+
+  template <typename... Args>
+  void EmplaceWait(Args&&... args) {
+    std::scoped_lock lock{writeMutex};
+    spscQueue.EmplaceWait(std::forward<Args>(args)...);
+  }
+
+  bool TryPop(T& t) {
+    return spscQueue.TryPop(t);
+  }
+
+  bool PopWait(T& t) {
+    return spscQueue.PopWait(t);
+  }
+
+  bool PopWait(T& t, std::stop_token stop_token) {
+    return spscQueue.PopWait(t, stop_token);
+  }
+
+  T PopWait() {
+    return spscQueue.PopWait();
+  }
+
+  T PopWait(std::stop_token stop_token) {
+    return spscQueue.PopWait(stop_token);
+  }
+
+private:
+  SPSCQueue<T, Capacity> spscQueue;
+  std::mutex writeMutex;
+};
+
+template <typename T, size_t Capacity = detail::DefaultCapacity>
+class MPMCQueue {
+public:
+  template <typename... Args>
+  bool TryEmplace(Args&&... args) {
+    std::scoped_lock lock{ writeMutex };
+    return spscQueue.TryEmplace(std::forward<Args>(args)...);
+  }
+
+  template <typename... Args>
+  void EmplaceWait(Args&&... args) {
+    std::scoped_lock lock{ writeMutex };
+    spscQueue.EmplaceWait(std::forward<Args>(args)...);
+  }
+
+  bool TryPop(T& t) {
+    std::scoped_lock lock{ readMutex };
+    return spscQueue.TryPop(t);
+  }
+
+  bool PopWait(T& t) {
+    std::scoped_lock lock{ readMutex };
+    return spscQueue.PopWait(t);
+  }
+
+  bool PopWait(T& t, std::stop_token stopToken) {
+    std::scoped_lock lock{ readMutex };
+    return spscQueue.PopWait(t, stopToken);
+  }
+
+  T PopWait() {
+    std::scoped_lock lock{ readMutex };
+    return spscQueue.PopWait();
+  }
+
+  T PopWait(std::stop_token stop_token) {
+    std::scoped_lock lock{ readMutex };
+    return spscQueue.PopWait(stop_token);
+  }
+
+private:
+  SPSCQueue<T, Capacity> spscQueue;
+  std::mutex writeMutex;
+  std::mutex readMutex;
+};
+
+} // namespace Base

core/Base/Config.cpp

@@ -0,0 +1,72 @@
+// Copyright 2025 Pound Emulator Project. All rights reserved.
+
+#include "Config.h"
+
+#include <fmt/core.h>
+#include <toml.hpp>
+
+namespace Config {
+
+static bool logAdvanced = false;
+
+static std::string typeLog = "async";
+
+bool isLogAdvanced() {
+  return logAdvanced;
+}
+
+std::string logType() {
+  return typeLog;
+}
+
+void Load(const std::filesystem::path& path) {
+  // If the configuration file does not exist, create it and return
+  std::error_code error;
+  if (!std::filesystem::exists(path, error)) {
+    Save(path);
+    return;
+  }
+
+  toml::value data;
+
+  try {
+    data = toml::parse(path);
+  } catch (std::exception& ex) {
+    fmt::print("Got exception trying to load config file. Exception: {}\n", ex.what());
+    return;
+  }
+  if (data.contains("General")) {
+    const toml::value& general = data.at("General");
+
+    logAdvanced = toml::find_or<bool>(general, "Advanced Log", false);
+    typeLog = toml::find_or<std::string>(general, "Log Type", "async");
+  }
+}
+
+void Save(const std::filesystem::path& path) {
+  toml::ordered_value data;
+
+  std::error_code error;
+  if (std::filesystem::exists(path, error)) {
+    try {
+      data = toml::parse(path);
+    } catch (const std::exception& ex) {
+      fmt::print("Exception trying to parse config file. Exception: {}\n", ex.what());
+      return;
+    }
+  } else {
+    if (error) {
+      fmt::print("Filesystem error: {}\n", error.message());
+    }
+    fmt::print("Saving new configuration file {}\n", path.string());
+  }
+
+  data["General"]["Advanced Log"] = logAdvanced;
+  data["General"]["Log Type"] = typeLog;
+
+  std::ofstream file(path, std::ios::binary);
+  file << data;
+  file.close();
+}
+
+} // namespace Config

core/Base/Config.h

@@ -0,0 +1,16 @@
+// Copyright 2025 Pound Emulator Project. All rights reserved.
+
+#pragma once
+
+#include <filesystem>
+
+namespace Config {
+
+void Load(const std::filesystem::path& path);
+void Save(const std::filesystem::path& path);
+
+bool isLogAdvanced();
+
+std::string logType();
+
+} // namespace Config

core/Base/Enum.h

@@ -0,0 +1,157 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#define DECLARE_ENUM_FLAG_OPERATORS(type)                                                      \
+  [[nodiscard]] constexpr type operator|(type a, type b) noexcept {                            \
+    using T = std::underlying_type_t<type>;                                                    \
+    return static_cast<type>(static_cast<T>(a) | static_cast<T>(b));                           \
+  }                                                                                            \
+  [[nodiscard]] constexpr type operator&(type a, type b) noexcept {                            \
+    using T = std::underlying_type_t<type>;                                                    \
+    return static_cast<type>(static_cast<T>(a) & static_cast<T>(b));                           \
+  }                                                                                            \
+  [[nodiscard]] constexpr type operator^(type a, type b) noexcept {                            \
+    using T = std::underlying_type_t<type>;                                                    \
+    return static_cast<type>(static_cast<T>(a) ^ static_cast<T>(b));                           \
+  }                                                                                            \
+  [[nodiscard]] constexpr type operator<<(type a, type b) noexcept {                           \
+    using T = std::underlying_type_t<type>;                                                    \
+    return static_cast<type>(static_cast<T>(a) << static_cast<T>(b));                          \
+  }                                                                                            \
+  [[nodiscard]] constexpr type operator>>(type a, type b) noexcept {                           \
+    using T = std::underlying_type_t<type>;                                                    \
+    return static_cast<type>(static_cast<T>(a) >> static_cast<T>(b));                          \
+  }                                                                                            \
+  constexpr type& operator|=(type& a, type b) noexcept {                                       \
+    a = a | b;                                                                                 \
+    return a;                                                                                  \
+  }                                                                                            \
+  constexpr type& operator&=(type& a, type b) noexcept {                                       \
+    a = a & b;                                                                                 \
+    return a;                                                                                  \
+  }                                                                                            \
+  constexpr type& operator^=(type& a, type b) noexcept {                                       \
+    a = a ^ b;                                                                                 \
+    return a;                                                                                  \
+  }                                                                                            \
+  constexpr type& operator<<=(type& a, type b) noexcept {                                      \
+    a = a << b;                                                                                \
+    return a;                                                                                  \
+  }                                                                                            \
+  constexpr type& operator>>=(type& a, type b) noexcept {                                      \
+    a = a >> b;                                                                                \
+    return a;                                                                                  \
+  }                                                                                            \
+  [[nodiscard]] constexpr type operator~(type key) noexcept {                                  \
+    using T = std::underlying_type_t<type>;                                                    \
+    return static_cast<type>(~static_cast<T>(key));                                            \
+  }                                                                                            \
+  [[nodiscard]] constexpr bool True(type key) noexcept {                                       \
+    using T = std::underlying_type_t<type>;                                                    \
+    return static_cast<T>(key) != 0;                                                           \
+  }                                                                                            \
+  [[nodiscard]] constexpr bool False(type key) noexcept {                                      \
+    using T = std::underlying_type_t<type>;                                                    \
+    return static_cast<T>(key) == 0;                                                           \
+  }
+
+namespace Base {
+
+template <typename T>
+class Flags {
+public:
+  using IntType = std::underlying_type_t<T>;
+
+  Flags() {}
+
+  Flags(IntType t) : m_bits(t) {}
+
+  template <typename... Tx>
+  Flags(T f, Tx... fx) {
+    set(f, fx...);
+  }
+
+  template <typename... Tx>
+  void set(Tx... fx) {
+    m_bits |= bits(fx...);
+  }
+
+  void set(Flags flags) {
+    m_bits |= flags.m_bits;
+  }
+
+  template <typename... Tx>
+  void clr(Tx... fx) {
+    m_bits &= ~bits(fx...);
+  }
+
+  void clr(Flags flags) {
+    m_bits &= ~flags.m_bits;
+  }
+
+  template <typename... Tx>
+  bool any(Tx... fx) const {
+    return (m_bits & bits(fx...)) != 0;
+  }
+
+  template <typename... Tx>
+  bool all(Tx... fx) const {
+    const IntType mask = bits(fx...);
+    return (m_bits & mask) == mask;
+  }
+
+  bool test(T f) const {
+    return any(f);
+  }
+
+  bool isClear() const {
+    return m_bits == 0;
+  }
+
+  void clrAll() {
+    m_bits = 0;
+  }
+
+  u32 raw() const {
+    return m_bits;
+  }
+
+  Flags operator&(const Flags& other) const {
+    return Flags(m_bits & other.m_bits);
+  }
+
+  Flags operator|(const Flags& other) const {
+    return Flags(m_bits | other.m_bits);
+  }
+
+  Flags operator^(const Flags& other) const {
+    return Flags(m_bits ^ other.m_bits);
+  }
+
+  bool operator==(const Flags& other) const {
+    return m_bits == other.m_bits;
+  }
+
+  bool operator!=(const Flags& other) const {
+    return m_bits != other.m_bits;
+  }
+
+private:
+  IntType m_bits = 0;
+
+  static IntType bit(T f) {
+    return IntType(1) << static_cast<IntType>(f);
+  }
+
+  template <typename... Tx>
+  static IntType bits(T f, Tx... fx) {
+    return bit(f) | bits(fx...);
+  }
+
+  static IntType bits() {
+    return 0;
+  }
+};
+
+} // namespace Base

core/Base/Error.h

@@ -0,0 +1,19 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include <string>
+
+namespace Base {
+
+// Like GetLastErrorMsg(), but passing an explicit error code.
+// Defined in error.cpp.
+[[nodiscard]] std::string NativeErrorToString(const s32 e);
+
+// Generic function to get last error message.
+// Call directly after the command or use the error num.
+// This function might change the error code.
+// Defined in error.cpp.
+[[nodiscard]] std::string GetLastErrorMsg();
+
+} // namespace Base

core/Base/IoFile.cpp

@@ -0,0 +1,428 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#include <vector>
+
+#include "IoFile.h"
+
+#include "Assert.h"
+#include "Error.h"
+#include "Logging/Log.h"
+#include "PathUtil.h"
+
+#ifdef _WIN32
+#define ftruncate _chsize_s
+#define fsync _commit
+
+#include <io.h>
+#include <share.h>
+#include <Windows.h>
+#else
+#include <unistd.h>
+#endif
+
+#ifdef _MSC_VER
+#define fileno _fileno
+#define fseeko _fseeki64
+#define ftello _ftelli64
+#endif
+
+namespace fs = std::filesystem;
+
+namespace Base::FS {
+
+#ifdef _WIN32
+
+[[nodiscard]] constexpr const wchar_t* AccessModeToWStr(FileAccessMode mode, FileMode type) {
+  switch (type) {
+  case FileMode::BinaryMode:
+    switch (mode) {
+    case FileAccessMode::Read:
+      return L"rb";
+    case FileAccessMode::Write:
+      return L"wb";
+    case FileAccessMode::Append:
+      return L"ab";
+    case FileAccessMode::ReadWrite:
+      return L"r+b";
+    case FileAccessMode::ReadAppend:
+      return L"a+b";
+    }
+    break;
+  case FileMode::TextMode:
+    switch (mode) {
+    case FileAccessMode::Read:
+      return L"r";
+    case FileAccessMode::Write:
+      return L"w";
+    case FileAccessMode::Append:
+      return L"a";
+    case FileAccessMode::ReadWrite:
+      return L"r+";
+    case FileAccessMode::ReadAppend:
+      return L"a+";
+    }
+    break;
+  }
+
+  return L"";
+}
+
+[[nodiscard]] constexpr int ToWindowsFileShareFlag(FileShareFlag flag) {
+  switch (flag) {
+  case FileShareFlag::ShareNone:
+  default:
+    return _SH_DENYRW;
+  case FileShareFlag::ShareReadOnly:
+    return _SH_DENYWR;
+  case FileShareFlag::ShareWriteOnly:
+    return _SH_DENYRD;
+  case FileShareFlag::ShareReadWrite:
+    return _SH_DENYNO;
+  }
+}
+
+#else
+
+[[nodiscard]] constexpr const char* AccessModeToStr(FileAccessMode mode, FileMode type) {
+  switch (type) {
+  case FileMode::BinaryMode:
+    switch (mode) {
+    case FileAccessMode::Read:
+      return "rb";
+    case FileAccessMode::Write:
+      return "wb";
+    case FileAccessMode::Append:
+      return "ab";
+    case FileAccessMode::ReadWrite:
+      return "r+b";
+    case FileAccessMode::ReadAppend:
+      return "a+b";
+    }
+    break;
+  case FileMode::TextMode:
+    switch (mode) {
+    case FileAccessMode::Read:
+      return "r";
+    case FileAccessMode::Write:
+      return "w";
+    case FileAccessMode::Append:
+      return "a";
+    case FileAccessMode::ReadWrite:
+      return "r+";
+    case FileAccessMode::ReadAppend:
+      return "a+";
+    }
+    break;
+  }
+
+  return "";
+}
+
+#endif
+
+[[nodiscard]] constexpr int ToSeekOrigin(SeekOrigin origin) {
+  switch (origin) {
+  case SeekOrigin::SetOrigin:
+  default:
+    return SEEK_SET;
+  case SeekOrigin::CurrentPosition:
+    return SEEK_CUR;
+  case SeekOrigin::End:
+    return SEEK_END;
+  }
+}
+
+IOFile::IOFile() = default;
+
+IOFile::IOFile(const std::string& path, FileAccessMode mode, FileMode type, FileShareFlag flag) {
+  Open(path, mode, type, flag);
+}
+
+IOFile::IOFile(std::string_view path, FileAccessMode mode, FileMode type, FileShareFlag flag) {
+  Open(path, mode, type, flag);
+}
+
+IOFile::IOFile(const fs::path &path, FileAccessMode mode, FileMode type, FileShareFlag flag) {
+  Open(path, mode, type, flag);
+}
+
+IOFile::~IOFile() {
+  Close();
+}
+
+IOFile::IOFile(IOFile&& other) noexcept {
+  std::swap(filePath, other.filePath);
+  std::swap(fileAccessMode, other.fileAccessMode);
+  std::swap(fileType, other.fileType);
+  std::swap(file, other.file);
+}
+
+IOFile& IOFile::operator=(IOFile&& other) noexcept {
+  std::swap(filePath, other.filePath);
+  std::swap(fileAccessMode, other.fileAccessMode);
+  std::swap(fileType, other.fileType);
+  std::swap(file, other.file);
+  return *this;
+}
+
+int IOFile::Open(const fs::path& path, FileAccessMode mode, FileMode type, FileShareFlag flag) {
+  Close();
+
+  filePath = path;
+  fileAccessMode = mode;
+  fileType = type;
+
+  errno = 0;
+  int result = 0;
+
+#ifdef _WIN32
+  if (flag != FileShareFlag::ShareNone) {
+    file = ::_wfsopen(path.c_str(), AccessModeToWStr(mode, type), ToWindowsFileShareFlag(flag));
+    result = errno;
+  } else {
+    result = ::_wfopen_s(&file, path.c_str(), AccessModeToWStr(mode, type));
+  }
+#else
+  file = std::fopen(path.c_str(), AccessModeToStr(mode, type));
+  result = errno;
+#endif
+
+  if (!IsOpen()) {
+    const auto ec = std::error_code{result, std::generic_category()};
+    LOG_ERROR(Base_Filesystem, "Failed to open the file at path={}, error_message={}",
+              PathToUTF8String(filePath), ec.message());
+  }
+
+  return result;
+}
+
+void IOFile::Close() {
+  if (!IsOpen()) {
+    return;
+  }
+
+  errno = 0;
+
+  const bool closeResult = ::fclose(file) == 0;
+
+  if (!closeResult) {
+    const auto ec = std::error_code{errno, std::generic_category()};
+    LOG_ERROR(Base_Filesystem, "Failed to close the file at path={}, ec_message={}",
+              PathToUTF8String(filePath), ec.message());
+  }
+
+  file = nullptr;
+
+#ifdef _WIN64
+  if (fileMapping && fileAccessMode == FileAccessMode::ReadWrite) {
+    ::CloseHandle(std::bit_cast<HANDLE>(fileMapping));
+  }
+#endif
+}
+
+void IOFile::Unlink() {
+  if (!IsOpen()) {
+    return;
+  }
+
+  // Mark the file for deletion
+  std::error_code fsError;
+  fs::remove_all(filePath, fsError);
+  if (fsError) {
+    LOG_ERROR(Base_Filesystem, "Failed to remove the file at '{}'. Reason: {}",
+      PathToUTF8String(filePath), fsError.message());
+  }
+}
+
+uptr IOFile::GetFileMapping() {
+  if (fileMapping) {
+    return fileMapping;
+  }
+#ifdef _WIN64
+  const s32 fd = fileno(file);
+
+  HANDLE hfile = reinterpret_cast<HANDLE>(::_get_osfhandle(fd));
+  HANDLE mapping = nullptr;
+
+/*  if (fileAccessMode == FileAccessMode::ReadWrite) {
+    mapping = CreateFileMapping2(hfile, NULL, FILE_MAP_WRITE, PAGE_READWRITE, SEC_COMMIT, 0,
+                                 NULL, NULL, 0);
+  } else {
+    mapping = hfile;
+  }*/
+
+  mapping = hfile;
+
+  fileMapping = std::bit_cast<uptr>(mapping);
+  ASSERT_MSG(fileMapping, "{}", Base::GetLastErrorMsg());
+  return fileMapping;
+#else
+  fileMapping = fileno(file);
+  return fileMapping;
+#endif
+}
+
+std::string IOFile::ReadString(size_t length) const {
+  std::vector<char> string_buffer(length);
+
+  const u64 charsRead = ReadSpan<char>(string_buffer);
+  const auto stringSize = charsRead != length ? charsRead : length;
+
+  return std::string{ string_buffer.data(), stringSize };
+}
+
+bool IOFile::Flush() const {
+  if (!IsOpen()) {
+    return false;
+  }
+
+  errno = 0;
+
+  const bool flushResult = ::fflush(file) == 0;
+
+  if (!flushResult) {
+    const std::error_code ec = { errno, std::generic_category() };
+    LOG_ERROR(Base_Filesystem, "Failed to flush the file at path={}, ec_message={}",
+              PathToUTF8String(filePath), ec.message());
+  }
+
+  return flushResult;
+}
+
+bool IOFile::Commit() const {
+  if (!IsOpen()) {
+    return false;
+  }
+
+  errno = 0;
+
+  bool commitResult = ::fflush(file) == 0 && ::fsync(::fileno(file)) == 0;
+
+  if (!commitResult) {
+    const std::error_code ec = { errno, std::generic_category() };
+    LOG_ERROR(Base_Filesystem, "Failed to commit the file at path={}, ec_message={}",
+              PathToUTF8String(filePath), ec.message());
+  }
+
+  return commitResult;
+}
+
+bool IOFile::SetSize(u64 size) const {
+  if (!IsOpen()) {
+    return false;
+  }
+
+  errno = 0;
+
+  const bool setSizeResult = ::ftruncate(::fileno(file), static_cast<s64>(size)) == 0;
+
+  if (!setSizeResult) {
+    const std::error_code ec = { errno, std::generic_category() };
+    LOG_ERROR(Base_Filesystem, "Failed to resize the file at path={}, size={}, ec_message={}",
+              PathToUTF8String(filePath), size, ec.message());
+  }
+
+  return setSizeResult;
+}
+
+u64 IOFile::GetSize() const {
+  if (!IsOpen()) {
+    return 0;
+  }
+
+  // Flush any unwritten buffered data into the file prior to retrieving the file size.
+  std::fflush(file);
+
+
+  u64 fSize = 0;
+  // fs::file_size can cause a exception if it is not a valid file
+  try {
+    std::error_code ec{};
+    fSize = fs::file_size(filePath, ec);
+    if (fSize == -1 || !fSize) {
+      LOG_ERROR(Base_Filesystem, "Failed to retrieve the file size of path={}, ec_message={}",
+        PathToUTF8String(filePath), ec.message());
+      return 0;
+    }
+  } catch (const std::exception &ex) {
+    LOG_ERROR(Base_Filesystem, "Exception trying to get file size. Exception: {}",
+        ex.what());
+    return 0;
+  }
+
+  return fSize;
+}
+
+bool IOFile::Seek(s64 offset, SeekOrigin origin) const {
+  if (!IsOpen()) {
+    return false;
+  }
+
+  if (False(fileAccessMode & (FileAccessMode::Write | FileAccessMode::Append))) {
+    u64 size = GetSize();
+    if (origin == SeekOrigin::CurrentPosition && Tell() + offset > size) {
+      LOG_ERROR(Base_Filesystem, "Seeking past the end of the file");
+      return false;
+    } else if (origin == SeekOrigin::SetOrigin && static_cast<u64>(offset) > size) {
+      LOG_ERROR(Base_Filesystem, "Seeking past the end of the file");
+      return false;
+    } else if (origin == SeekOrigin::End && offset > 0) {
+      LOG_ERROR(Base_Filesystem, "Seeking past the end of the file");
+      return false;
+    }
+  }
+
+  errno = 0;
+
+  const s32 seekResult = fseeko(file, offset, ToSeekOrigin(origin)) == 0;
+
+  if (!seekResult) {
+    const std::error_code ec = { errno, std::generic_category() };
+    LOG_ERROR(Base_Filesystem,
+              "Failed to seek the file at path={}, offset={}, origin={}, ec_message={}",
+              PathToUTF8String(filePath), offset, static_cast<u32>(origin), ec.message());
+  }
+
+  return seekResult;
+}
+
+s64 IOFile::Tell() const {
+  if (!IsOpen()) {
+    return 0;
+  }
+
+  errno = 0;
+
+  return ftello(file);
+}
+
+u64 GetDirectorySize(const std::filesystem::path &path) {
+  if (!fs::exists(path)) {
+    return 0;
+  }
+
+  u64 total = 0;
+  for (const auto& entry : fs::recursive_directory_iterator(path)) {
+    if (fs::is_regular_file(entry.path())) {
+      // fs::file_size can cause a exception if it is not a valid file
+      try {
+        std::error_code ec{};
+        u64 fileSize = fs::file_size(entry.path(), ec);
+        if (fileSize != -1 && fileSize) {
+          total += fileSize;
+        }
+        else {
+          LOG_ERROR(Base_Filesystem, "Failed to retrieve the file size of path={}, ec_message={}",
+            PathToUTF8String(entry.path()), ec.message());
+        }
+      }
+      catch (const std::exception& ex) {
+        LOG_ERROR(Base_Filesystem, "Exception trying to get file size. Exception: {}",
+          ex.what());
+      }
+    }
+  }
+  return total;
+}
+
+} // namespace Base::FS

core/Base/IoFile.h

@@ -0,0 +1,222 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include <filesystem>
+#include <span>
+
+#include "Enum.h"
+#include "PathUtil.h"
+
+namespace Base::FS {
+
+enum class FileAccessMode {
+  /**
+   * If the file at path exists, it opens the file for reading.
+   * If the file at path does not exist, it fails to open the file.
+   */
+  Read = 1 << 0,
+  /**
+   * If the file at path exists, the existing contents of the file are erased.
+   * The empty file is then opened for writing.
+   * If the file at path does not exist, it creates and opens a new empty file for writing.
+   */
+  Write = 1 << 1,
+  /**
+   * If the file at path exists, it opens the file for reading and writing.
+   * If the file at path does not exist, it fails to open the file.
+   */
+  ReadWrite = Read | Write,
+  /**
+   * If the file at path exists, it opens the file for appending.
+   * If the file at path does not exist, it creates and opens a new empty file for appending.
+   */
+  Append = 1 << 2,
+  /**
+   * If the file at path exists, it opens the file for both reading and appending.
+   * If the file at path does not exist, it creates and opens a new empty file for both
+   * reading and appending.
+   */
+  ReadAppend = Read | Append
+};
+DECLARE_ENUM_FLAG_OPERATORS(FileAccessMode)
+
+enum class FileMode {
+  BinaryMode,
+  TextMode
+};
+
+enum class FileShareFlag {
+  ShareNone,      // Provides exclusive access to the file.
+  ShareReadOnly,  // Provides read only shared access to the file.
+  ShareWriteOnly, // Provides write only shared access to the file.
+  ShareReadWrite  // Provides read and write shared access to the file.
+};
+
+enum class SeekOrigin : u32 {
+  SetOrigin,       // Seeks from the start of the file.
+  CurrentPosition, // Seeks from the current file pointer position.
+  End              // Seeks from the end of the file.
+};
+
+class IOFile final {
+public:
+  IOFile();
+
+  explicit IOFile(const std::string& path, FileAccessMode mode,
+          FileMode type = FileMode::BinaryMode,
+          FileShareFlag flag = FileShareFlag::ShareReadOnly);
+
+  explicit IOFile(std::string_view path, FileAccessMode mode,
+          FileMode type = FileMode::BinaryMode,
+          FileShareFlag flag = FileShareFlag::ShareReadOnly);
+  explicit IOFile(const fs::path &path, FileAccessMode mode,
+          FileMode type = FileMode::BinaryMode,
+          FileShareFlag flag = FileShareFlag::ShareReadOnly);
+
+  ~IOFile();
+
+  IOFile(const IOFile&) = delete;
+  IOFile& operator=(const IOFile&) = delete;
+
+  IOFile(IOFile&& other) noexcept;
+  IOFile& operator=(IOFile&& other) noexcept;
+
+  fs::path GetPath() const {
+    return filePath;
+  }
+
+  FileAccessMode GetAccessMode() const {
+    return fileAccessMode;
+  }
+
+  FileMode GetType() const {
+    return fileType;
+  }
+
+  bool IsOpen() const {
+    return file != nullptr;
+  }
+
+  uptr GetFileMapping();
+
+  int Open(const fs::path& path, FileAccessMode mode,
+       FileMode type = FileMode::BinaryMode,
+       FileShareFlag flag = FileShareFlag::ShareReadOnly);
+  void Close();
+
+  void Unlink();
+
+  bool Flush() const;
+  bool Commit() const;
+
+  bool SetSize(u64 size) const;
+  u64 GetSize() const;
+
+  bool Seek(s64 offset, SeekOrigin origin = SeekOrigin::SetOrigin) const;
+  s64 Tell() const;
+
+  template <typename T>
+  size_t Read(T& data) const {
+    if constexpr (std::contiguous_iterator<typename T::iterator>) {
+      using ContiguousType = typename T::value_type;
+      static_assert(std::is_trivially_copyable_v<ContiguousType>,
+              "Data type must be trivially copyable.");
+      return ReadSpan<ContiguousType>(data);
+    } else {
+      return ReadObject(data) ? 1 : 0;
+    }
+  }
+
+  template <typename T>
+  size_t Write(const T& data) const {
+    if constexpr (std::contiguous_iterator<typename T::iterator>) {
+      using ContiguousType = typename T::value_type;
+      static_assert(std::is_trivially_copyable_v<ContiguousType>,
+              "Data type must be trivially copyable.");
+      return WriteSpan<ContiguousType>(data);
+    } else {
+      static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
+      return WriteObject(data) ? 1 : 0;
+    }
+  }
+
+  template <typename T>
+  size_t ReadSpan(std::span<T> data) const {
+    static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
+
+    if (!IsOpen()) {
+      return 0;
+    }
+
+    return ReadRaw<T>(data.data(), data.size());
+  }
+
+  template <typename T>
+  size_t ReadRaw(void* data, size_t size) const {
+    return std::fread(data, sizeof(T), size, file);
+  }
+
+  template <typename T>
+  size_t WriteSpan(std::span<const T> data) const {
+    static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
+
+    if (!IsOpen()) {
+      return 0;
+    }
+
+    return std::fwrite(data.data(), sizeof(T), data.size(), file);
+  }
+
+  template <typename T>
+  bool ReadObject(T& object) const {
+    static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
+    static_assert(!std::is_pointer_v<T>, "T must not be a pointer to an object.");
+
+    if (!IsOpen()) {
+      return false;
+    }
+
+    return std::fread(&object, sizeof(T), 1, file) == 1;
+  }
+
+  template <typename T>
+  size_t WriteRaw(const void* data, size_t size) const {
+    return std::fwrite(data, sizeof(T), size, file);
+  }
+
+  template <typename T>
+  bool WriteObject(const T& object) const {
+    static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
+    static_assert(!std::is_pointer_v<T>, "T must not be a pointer to an object.");
+
+    if (!IsOpen()) {
+      return false;
+    }
+
+    return std::fwrite(&object, sizeof(T), 1, file) == 1;
+  }
+
+  std::string ReadString(size_t length) const;
+
+  size_t WriteString(std::span<const char> string) const {
+    return WriteSpan(string);
+  }
+
+  static size_t WriteBytes(const fs::path path, const auto& data) {
+    IOFile out(path, FileAccessMode::Write);
+    return out.Write(data);
+  }
+
+private:
+  fs::path filePath{};
+  FileAccessMode fileAccessMode{};
+  FileMode fileType{};
+
+  std::FILE *file = nullptr;
+  uptr fileMapping = 0;
+};
+
+u64 GetDirectorySize(const fs::path &path);
+
+} // namespace Base::FS

core/Base/Logging/Backend.cpp

@@ -0,0 +1,442 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#include <fmt/format.h>
+#include <functional>
+#include <map>
+
+#include "Base/BoundedQueue.h"
+#include "Base/IoFile.h"
+#include "Base/PathUtil.h"
+#include "Base/StringUtil.h"
+#include "Base/Thread.h"
+
+#include "Backend.h"
+#include "Log.h"
+#include "LogEntry.h"
+#include "TextFormatter.h"
+
+namespace Base {
+namespace Log {
+
+using namespace Base::FS;
+
+// Base backend with shell functions
+class BaseBackend {
+public:
+  virtual ~BaseBackend() = default;
+  virtual void Write(const Entry &entry) = 0;
+  virtual void Flush() = 0;
+};
+
+
+// Backend that writes to stdout and with color
+class ColorConsoleBackend : public BaseBackend {
+public:
+  explicit ColorConsoleBackend() = default;
+
+  ~ColorConsoleBackend() = default;
+
+  void Write(const Entry &entry) override {
+    if (enabled.load(std::memory_order_relaxed)) {
+      PrintColoredMessage(entry);
+    }
+  }
+
+  void Flush() override {
+    // stdout shouldn't be buffered
+  }
+
+  void SetEnabled(bool enabled_) {
+    enabled = enabled_;
+  }
+
+private:
+  std::atomic<bool> enabled = true;
+};
+
+// Backend that writes to a file passed into the constructor
+class FileBackend : public BaseBackend {
+public:
+  explicit FileBackend(const fs::path &filename)
+    : file(filename, FS::FileAccessMode::Write, FS::FileMode::TextMode)
+  {}
+
+  ~FileBackend() {
+    file.Close();
+  }
+
+  void Write(const Entry &entry) override {
+    if (!enabled) {
+      return;
+    }
+
+    if (entry.formatted) {
+      bytesWritten += file.WriteString(FormatLogMessage(entry).append(1, '\n'));
+    }
+    else {
+      bytesWritten += file.WriteString(entry.message);
+    }
+
+    // Prevent logs from exceeding a set maximum size in the event that log entries are spammed.
+    constexpr u64 writeLimit = 100_MB;
+    const bool writeLimitExceeded = bytesWritten > writeLimit;
+    if (entry.logLevel >= Level::Error || writeLimitExceeded) {
+      if (writeLimitExceeded) {
+        // Stop writing after the write limit is exceeded.
+        // Don't close the file so we can print a stacktrace if necessary
+        enabled = false;
+      }
+      file.Flush();
+    }
+  }
+
+  void Flush() override {
+    file.Flush();
+  }
+
+private:
+  Base::FS::IOFile file;
+  std::atomic<bool> enabled = true;
+  size_t bytesWritten = 0;
+};
+
+bool currentlyInitialising = true;
+
+// Static state as a singleton.
+class Impl {
+public:
+  static Impl& Instance() {
+    if (!instance) {
+      throw std::runtime_error("Using Logging instance before its initialization");
+    }
+    return *instance;
+  }
+
+  static void Initialize(const std::string_view logFile) {
+    if (instance) {
+      LOG_WARNING(Log, "Reinitializing logging backend");
+      return;
+    }
+    const auto logDir = GetUserPath(PathType::LogDir);
+    Filter filter;
+    //filter.ParseFilterString(Config::getLogFilter());
+    instance = std::unique_ptr<Impl, decltype(&Deleter)>(new Impl(logDir / logFile, filter), Deleter);
+    currentlyInitialising = false;
+  }
+
+  static bool IsActive() {
+    return instance != nullptr;
+  }
+
+  static void Start() {
+    instance->StartBackendThread();
+  }
+
+  static void Stop() {
+    instance->StopBackendThread();
+  }
+
+  Impl(const Impl&) = delete;
+  Impl& operator=(const Impl&) = delete;
+
+  Impl(Impl&&) = delete;
+  Impl& operator=(Impl&&) = delete;
+
+  void SetGlobalFilter(const Filter& f) {
+    filter = f;
+  }
+
+  void SetColorConsoleBackendEnabled(bool enabled) {
+    colorConsoleBackend->SetEnabled(enabled);
+  }
+
+  void PushEntry(Class logClass, Level logLevel, const char *filename, u32 lineNum,
+           const char *function, const std::string &message) {
+
+    if (!filter.CheckMessage(logClass, logLevel)) {
+      return;
+    }
+
+    using std::chrono::duration_cast;
+    using std::chrono::microseconds;
+    using std::chrono::steady_clock;
+
+    const Entry entry = {
+      .timestamp = duration_cast<microseconds>(steady_clock::now() - timeOrigin),
+      .logClass = logClass,
+      .logLevel = logLevel,
+      .filename = filename,
+      .lineNum = lineNum,
+      .function = function,
+      .message = message,
+    };
+    if (Config::logType() == "async") {
+      messageQueue.EmplaceWait(entry);
+    } else {
+      ForEachBackend([&entry](BaseBackend* backend) { if (backend) { backend->Write(entry); } });
+      std::fflush(stdout);
+    }
+  }
+
+  void PushEntryNoFmt(Class logClass, Level logLevel, const std::string &message) {
+    if (!filter.CheckMessage(logClass, logLevel)) {
+      return;
+    }
+
+    using std::chrono::duration_cast;
+    using std::chrono::microseconds;
+    using std::chrono::steady_clock;
+
+    const Entry entry = {
+      .timestamp = duration_cast<microseconds>(steady_clock::now() - timeOrigin),
+      .logClass = logClass,
+      .logLevel = logLevel,
+      .message = message,
+      .formatted = false
+    };
+    if (Config::logType() == "async") {
+      messageQueue.EmplaceWait(entry);
+    } else {
+      ForEachBackend([&entry](BaseBackend* backend) { if (backend) { backend->Write(entry); } });
+      std::fflush(stdout);
+    }
+  }
+
+private:
+  Impl(const fs::path &fileBackendFilename, const Filter &filter) :
+    filter(filter) {
+#ifdef _WIN32
+    HANDLE conOut = GetStdHandle(STD_OUTPUT_HANDLE);
+    // Get current console mode
+    ul32 mode = 0;
+    GetConsoleMode(conOut, &mode);
+    // Set WinAPI to use a more 'modern' approach, by enabling VT
+    // Allows ASCII escape codes
+    mode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+    // Write adjusted mode back
+    SetConsoleMode(conOut, mode);
+#endif
+    colorConsoleBackend = std::make_unique<ColorConsoleBackend>();
+    fileBackend = std::make_unique<FileBackend>(fileBackendFilename);
+  }
+
+  ~Impl() {
+    Stop();
+    fileBackend.reset();
+    colorConsoleBackend.reset();
+  }
+
+  void StartBackendThread() {
+    backendThread = std::jthread([this](std::stop_token stopToken) {
+      Base::SetCurrentThreadName("[Xe] Log");
+      Entry entry = {};
+      const auto writeLogs = [this, &entry]() {
+        ForEachBackend([&entry](BaseBackend *backend) { backend->Write(entry); });
+      };
+      while (!stopToken.stop_requested()) {
+        if (messageQueue.PopWait(entry, stopToken))
+          writeLogs();
+      }
+      // Drain the logging queue. Only writes out up to MAX_LOGS_TO_WRITE to prevent a
+      // case where a system is repeatedly spamming logs even on close.
+      s32 maxLogsToWrite = filter.IsDebug() ? std::numeric_limits<s32>::max() : 100;
+      while (maxLogsToWrite-- > 0) {
+        if (messageQueue.TryPop(entry)) {
+          writeLogs();
+        } else {
+          break;
+        }
+      }
+    });
+  }
+
+  void StopBackendThread() {
+    backendThread.request_stop();
+    if (backendThread.joinable()) {
+      backendThread.join();
+    }
+
+    ForEachBackend([](BaseBackend *backend) { backend->Flush(); });
+  }
+
+  void ForEachBackend(std::function<void(BaseBackend*)> lambda) {
+    lambda(colorConsoleBackend.get());
+    lambda(fileBackend.get());
+  }
+
+  static void Deleter(Impl* ptr) {
+    delete ptr;
+  }
+
+  static inline std::unique_ptr<Impl, decltype(&Deleter)> instance{ nullptr, Deleter };
+
+  Filter filter;
+  std::unique_ptr<ColorConsoleBackend> colorConsoleBackend = {};
+  std::unique_ptr<FileBackend> fileBackend = {};
+
+  MPSCQueue<Entry> messageQueue = {};
+  std::chrono::steady_clock::time_point timeOrigin = std::chrono::steady_clock::now();
+  std::jthread backendThread;
+};
+
+std::vector<fs::path> filepaths{};
+
+void DeleteOldLogs(const fs::path& path, u64 num_logs, const u16 logLimit) {
+  const std::string filename = path.filename().string();
+  const std::chrono::time_point Now = std::chrono::system_clock::now();
+  const time_t timeNow = std::chrono::system_clock::to_time_t(Now);
+  const tm* time = std::localtime(&timeNow);
+  // We want to get rid of anything that isn't that current day's date
+  const std::string currentDate = fmt::format("{}-{}-{}", time->tm_mon + 1, time->tm_mday, 1900 + time->tm_year);
+  if (filename.find(currentDate) == std::string::npos) {
+    fs::remove_all(path);
+    return;
+  }
+  // We want to delete in date of creation, so just add it to a array
+  if (num_logs >= logLimit) {
+    filepaths.push_back(path);
+  }
+}
+
+u64 CreateIntegralTimestamp(const std::string &date) {
+  const u64 monthPos = date.find('-');
+  if (monthPos == std::string::npos) {
+    return 0;
+  }
+  const std::string month = date.substr(0, monthPos);
+  const u64 dayPos = date.find('-', monthPos);
+  if (dayPos == std::string::npos) {
+    return 0;
+  }
+  const u64 yearPos = date.find('-', dayPos);
+  const std::string day = date.substr(monthPos+1);
+  if (yearPos == std::string::npos) {
+    return 0;
+  }
+  const std::string year = date.substr(yearPos + 1);
+  const u64 yearInt = std::stoull(year);
+  const std::string timestamp = fmt::format("{}{}{}", month, day, yearInt - 1900);
+  return std::stoull(timestamp);
+}
+
+void CleanupOldLogs(const std::string_view &logFileBase, const fs::path &logDir, const u16 logLimit) {
+  const fs::path LogFile = logFileBase;
+  // Track how many logs we have
+  size_t numLogs = 0;
+  for (auto &entry : fs::directory_iterator(logDir)) {
+    if (entry.is_regular_file()) {
+      const fs::path path = entry.path();
+      const std::string ext = path.extension().string();
+      if (!path.has_extension()) {
+        // Skip anything that isn't a log file
+        continue;
+      }
+      if (ext != LogFile.extension()) {
+        // Skip anything that isn't a log file
+        continue;
+      }
+      numLogs++;
+      DeleteOldLogs(path, numLogs, logLimit);
+    } else {
+      // Skip anything that isn't a file
+      continue;
+    }
+  }
+  if (filepaths.empty()) {
+    return;
+  }
+  u64 numToDelete{ logLimit };
+  std::map<u64, fs::path> date_sorted_paths{};
+  for (const auto &path : filepaths) {
+    const std::string stem = path.stem().string();
+    u64 basePos = stem.find('_');
+    // If we cannot get the base, just delete it
+    if (basePos == std::string::npos) {
+      numToDelete--;
+      fs::remove_all(path);
+    } else {
+      const std::string base = stem.substr(0, basePos);
+      const u64 datePos = base.find('_', basePos+1);
+      const std::string date = base.substr(datePos+1);
+      const u64 dateInt = CreateIntegralTimestamp(date);
+      if (datePos == std::string::npos) {
+        // If we cannot find the date, just delete it
+        numToDelete--;
+        fs::remove_all(path);
+      } else {
+        const u64 timePos = base.find('_', datePos+1);
+        const std::string time = base.substr(timePos+1);
+        const u64 timestamp = CreateIntegralTimestamp(time);
+        if (!timestamp) {
+          numToDelete--;
+          fs::remove_all(path);
+          continue;
+        }
+        date_sorted_paths.insert({ dateInt + timestamp, path });
+      }
+    }
+  }
+  // Start deleting based off timestamp
+  for (const auto &entry : date_sorted_paths) {
+    fs::remove_all(entry.second);
+  }
+}
+
+void Initialize(const std::string_view &logFile) {
+  // Create directory vars to so we can use fs::path::stem
+  const fs::path LogDir = GetUserPath(PathType::LogDir);
+  const fs::path LogFile = LOG_FILE;
+  const fs::path LogFileStem = LogFile.stem();
+  const fs::path LogFileName = LogFile.filename();
+  // This is to make string_view happy
+  const std::string LogFileStemStr = LogFileStem.string();
+  const std::string LogFileNameStr = LogFileName.string();
+  // Setup filename
+  const std::string_view filestemBase = logFile.empty() ? LogFileStemStr : logFile;
+  const std::string_view filenameBase = logFile.empty() ? LogFileNameStr : logFile;
+  const std::chrono::time_point now = std::chrono::system_clock::now();
+  const time_t timeNow = std::chrono::system_clock::to_time_t(now);
+  const tm *time = std::localtime(&timeNow);
+  const std::string currentTime = fmt::format("{}-{}-{}", time->tm_hour, time->tm_min, time->tm_sec);
+  const std::string currentDate = fmt::format("{}-{}-{}", time->tm_mon + 1, time->tm_mday, 1900 + time->tm_year);
+  const std::string filename = fmt::format("{}_{}_{}.txt", filestemBase, currentDate, currentTime);
+  CleanupOldLogs(filenameBase, LogDir);
+  Impl::Initialize(logFile.empty() ? filename : logFile);
+}
+
+bool IsActive() {
+  return Impl::IsActive();
+}
+
+void Start() {
+  Impl::Start();
+}
+
+void Stop() {
+  Impl::Stop();
+}
+
+void SetGlobalFilter(const Filter &filter) {
+  Impl::Instance().SetGlobalFilter(filter);
+}
+
+void SetColorConsoleBackendEnabled(bool enabled) {
+  Impl::Instance().SetColorConsoleBackendEnabled(enabled);
+}
+
+void FmtLogMessageImpl(Class logClass, Level logLevel, const char *filename,
+             u32 lineNum, const char *function, const char *format,
+             const fmt::format_args &args) {
+  if (!currentlyInitialising) [[likely]] {
+    Impl::Instance().PushEntry(logClass, logLevel, filename, lineNum, function,
+                   fmt::vformat(format, args));
+  }
+}
+
+void NoFmtMessage(Class logClass, Level logLevel, const std::string &message) {
+  if (!currentlyInitialising) [[likely]] {
+    Impl::Instance().PushEntryNoFmt(logClass, logLevel, message);
+  }
+}
+} // namespace Log
+} // namespace Base

core/Base/Logging/Backend.h

@@ -0,0 +1,37 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include <string_view>
+#include <filesystem>
+
+#include "Base/PathUtil.h"
+
+#include "Filter.h"
+
+namespace Base {
+namespace Log {
+
+class Filter;
+
+/// Cleans up logs from previous days, and any logs within the desired limit
+void CleanupOldLogs(const std::string_view &logFileBase, const fs::path &logDir, const u16 logLimit = 50);
+
+/// Initializes the logging system
+void Initialize(const std::string_view &logFile = {});
+
+bool IsActive();
+
+/// Starts the logging threads
+void Start();
+
+/// Explictily stops the logger thread and flushes the buffers
+void Stop();
+
+/// The global filter will prevent any messages from even being processed if they are filtered
+void SetGlobalFilter(const Filter &filter);
+
+void SetColorConsoleBackendEnabled(bool enabled);
+
+} // namespace Log
+} // namespace Base

core/Base/Logging/Filter.cpp

@@ -0,0 +1,153 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#include "Base/Assert.h"
+
+#include "Filter.h"
+
+namespace Base {
+namespace Log {
+
+template <typename It>
+Level GetLevelByName(const It begin, const It end) {
+  for (u8 i = 0; i < static_cast<u8>(Level::Count); ++i) {
+    const char* level_name = GetLevelName(static_cast<Level>(i));
+    if (std::string_view(begin, end).compare(level_name) == 0) {
+      return static_cast<Level>(i);
+    }
+  }
+  return Level::Count;
+}
+
+template <typename It>
+Class GetClassByName(const It begin, const It end) {
+  for (u8 i = 0; i < static_cast<u8>(Class::Count); ++i) {
+    const char* level_name = GetLogClassName(static_cast<Class>(i));
+    if (std::string_view(begin, end).compare(level_name) == 0) {
+      return static_cast<Class>(i);
+    }
+  }
+  return Class::Count;
+}
+
+template <typename Iterator>
+bool ParseFilterRule(Filter &instance, Iterator begin, Iterator end) {
+  const auto levelSeparator = std::find(begin, end, ':');
+  if (levelSeparator == end) {
+    LOG_ERROR(Log, "Invalid log filter. Must specify a log level after `:`: {}", std::string_view(begin, end));
+    return false;
+  }
+
+  const Level level = GetLevelByName(levelSeparator + 1, end);
+  if (level == Level::Count) {
+    LOG_ERROR(Log, "Unknown log level in filter: {}", std::string_view(begin, end));
+    return false;
+  }
+
+  if (std::string_view(begin, levelSeparator).compare("*") == 0) {
+    instance.ResetAll(level);
+    return true;
+  }
+
+  const Class logClass = GetClassByName(begin, levelSeparator);
+  if (logClass == Class::Count) {
+    LOG_ERROR(Log, "Unknown log class in filter: {}", std::string(begin, end));
+    return false;
+  }
+
+  instance.SetClassLevel(logClass, level);
+  return true;
+}
+
+/// Macro listing all log classes. Code should define CLS and SUB as desired before invoking this.
+#define ALL_LOG_CLASSES()                                                                        \
+  CLS(Log)                                                                                       \
+  CLS(Base)                                                                                      \
+  SUB(Base, Filesystem)                                                                          \
+  CLS(Config)                                                                                    \
+  CLS(Debug)                                                                                     \
+  CLS(System)                                                                                    \
+  CLS(Render)                                                                                    \
+  CLS(ARM)                                                                                       \
+
+// GetClassName is a macro defined by Windows.h, grrr...
+const char* GetLogClassName(Class logClass) {
+  switch (logClass) {
+#define CLS(x)                                                                                   \
+  case Class::x:                                                                                 \
+    return #x;
+#define SUB(x, y)                                                                                \
+  case Class::x##_##y:                                                                           \
+    return #x "." #y;
+    ALL_LOG_CLASSES()
+#undef CLS
+#undef SUB
+  case Class::Count:
+  default:
+    break;
+  }
+  UNREACHABLE();
+}
+
+const char* GetLevelName(Level logLevel) {
+#define LVL(x)                                                                                   \
+  case Level::x:                                                                                 \
+    return #x
+  switch (logLevel) {
+  LVL(Trace);
+  LVL(Debug);
+  LVL(Info);
+  LVL(Warning);
+  LVL(Error);
+  LVL(Critical);
+  LVL(Guest);
+  case Level::Count:
+  default:
+    break;
+  }
+#undef LVL
+  UNREACHABLE();
+}
+
+Filter::Filter(Level defaultLevel) {
+  ResetAll(defaultLevel);
+}
+
+void Filter::ResetAll(Level level) {
+  classLevels.fill(level);
+}
+
+void Filter::SetClassLevel(Class logClass, Level level) {
+  classLevels[static_cast<size_t>(logClass)] = level;
+}
+
+void Filter::ParseFilterString(const std::string_view &filterView) {
+  auto clause_begin = filterView.cbegin();
+  while (clause_begin != filterView.cend()) {
+    auto clause_end = std::find(clause_begin, filterView.cend(), ' ');
+
+    // If clause isn't empty
+    if (clause_end != clause_begin) {
+      ParseFilterRule(*this, clause_begin, clause_end);
+    }
+
+    if (clause_end != filterView.cend()) {
+      // Skip over the whitespace
+      ++clause_end;
+    }
+    clause_begin = clause_end;
+  }
+}
+
+bool Filter::CheckMessage(Class logClass, Level level) const {
+  return static_cast<u8>(level) >=
+         static_cast<u8>(classLevels[static_cast<size_t>(logClass)]);
+}
+
+bool Filter::IsDebug() const {
+  return std::any_of(classLevels.begin(), classLevels.end(), [](const Level& l) {
+    return static_cast<u8>(l) <= static_cast<u8>(Level::Debug);
+  });
+}
+
+} // namespace Log
+} // namespace Base

core/Base/Logging/Filter.h

@@ -0,0 +1,66 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include <array>
+
+#include "LogTypes.h"
+
+namespace Base {
+namespace Log {
+
+/*
+ * Returns the name of the passed log class as a C-string. Subclasses are separated by periods
+ * instead of underscores as in the enumeration.
+ */
+const char* GetLogClassName(Class log_class);
+
+/*
+ * Returns the name of the passed log level as a C-string.
+ */
+const char* GetLevelName(Level log_level);
+
+/*
+ * Implements a log message filter which allows different log classes to have different minimum
+ * severity levels. The filter can be changed at runtime and can be parsed from a string to allow
+ * editing via the interface or loading from a configuration file.
+ */
+class Filter {
+public:
+  /// Initializes the filter with all classes having `default_level` as the minimum level.
+  explicit Filter(Level defaultLevel = Level::Info);
+
+  /// Resets the filter so that all classes have `level` as the minimum displayed level.
+  void ResetAll(Level level);
+
+  /// Sets the minimum level of `log_class` (and not of its subclasses) to `level`.
+  void SetClassLevel(Class logClass, Level level);
+
+  /*
+   * Parses a filter string and applies it to this filter.
+   *
+   * A filter string consists of a space-separated list of filter rules, each of the format
+   * `<class>:<level>`. `<class>` is a log class name, with subclasses separated using periods.
+   * `*` is allowed as a class name and will reset all filters to the specified level. `<level>`
+   * a severity level name which will be set as the minimum logging level of the matched classes.
+   * Rules are applied left to right, with each rule overriding previous ones in the sequence.
+   *
+   * A few examples of filter rules:
+   *  - `*:Info` -- Resets the level of all classes to Info.
+   *  - `Service:Info` -- Sets the level of Service to Info.
+   *  - `Service.FS:Trace` -- Sets the level of the Service.FS class to Trace.
+   */
+  void ParseFilterString(const std::string_view &filterView);
+
+  /// Matches class/level combination against the filter, returning true if it passed.
+  bool CheckMessage(Class logClass, Level level) const;
+
+  /// Returns true if any logging classes are set to debug
+  bool IsDebug() const;
+
+private:
+  std::array<Level, static_cast<const size_t>(Class::Count)> classLevels;
+};
+
+} // namespace Log
+} // namespace Base

core/Base/Logging/Log.h

@@ -0,0 +1,78 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include <algorithm>
+#include <fmt/format.h>
+
+#include "Base/Config.h"
+
+#include "LogTypes.h"
+
+namespace Base {
+namespace Log {
+
+constexpr const char* TrimSourcePath(const std::string_view &source) {
+  const auto rfind = [source](const std::string_view match) {
+    return source.rfind(match) == source.npos ? 0 : (source.rfind(match) + match.size());
+  };
+  const auto idx = std::max({ rfind("/"), rfind("\\") });
+  return source.data() + idx;
+}
+
+/// Logs a message to the global logger, using fmt
+void FmtLogMessageImpl(Class logClass, Level logLevel, const char *filename,
+                       u32 lineNum, const char *function, const char *format,
+                       const fmt::format_args& args);
+
+/// Logs a message without any formatting
+void NoFmtMessage(Class logClass, Level logLevel, const std::string &message);
+
+template <typename... Args>
+void FmtLogMessage(Class logClass, Level logLevel, const char *filename, u32 lineNum,
+                   const char *function, const char *format, const Args&... args) {
+  FmtLogMessageImpl(logClass, logLevel, filename, lineNum, function, format,
+                    fmt::make_format_args(args...));
+}
+
+} // namespace Log
+} // namespace Base
+
+// Define the fmt lib macros
+#define LOG_GENERIC(logClass, logLevel, ...)                                             \
+  Base::Log::FmtLogMessage(logClass, logLevel, Base::Log::TrimSourcePath(__FILE__),      \
+                             __LINE__, __func__, __VA_ARGS__)
+#ifdef DEBUG_BUILD
+#define LOG_TRACE(logClass, ...)                                                         \
+if (Config::log.debugOnly)                                                               \
+  Base::Log::FmtLogMessage(Base::Log::Class::logClass, Base::Log::Level::Trace,          \
+                           Base::Log::TrimSourcePath(__FILE__), __LINE__, __func__,      \
+                           __VA_ARGS__)
+#else
+#define LOG_TRACE(logClass, ...) ;
+#endif
+
+#ifdef DEBUG_BUILD
+#define LOG_DEBUG(logClass, ...)                                                         \
+  Base::Log::FmtLogMessage(Base::Log::Class::logClass, Base::Log::Level::Debug,          \
+                           Base::Log::TrimSourcePath(__FILE__), __LINE__, __func__,      \
+                           __VA_ARGS__)
+#else
+#define LOG_DEBUG(logClass, ...) ;
+#endif
+#define LOG_INFO(logClass, ...)                                                          \
+  Base::Log::FmtLogMessage(Base::Log::Class::logClass, Base::Log::Level::Info,           \
+                           Base::Log::TrimSourcePath(__FILE__), __LINE__, __func__,      \
+                           __VA_ARGS__)
+#define LOG_WARNING(logClass, ...)                                                       \
+  Base::Log::FmtLogMessage(Base::Log::Class::logClass, Base::Log::Level::Warning,        \
+                           Base::Log::TrimSourcePath(__FILE__), __LINE__, __func__,      \
+                           __VA_ARGS__)
+#define LOG_ERROR(logClass, ...)                                                         \
+  Base::Log::FmtLogMessage(Base::Log::Class::logClass, Base::Log::Level::Error,          \
+                           Base::Log::TrimSourcePath(__FILE__), __LINE__, __func__,      \
+                           __VA_ARGS__)
+#define LOG_CRITICAL(logClass, ...)                                                      \
+  Base::Log::FmtLogMessage(Base::Log::Class::logClass, Base::Log::Level::Critical,       \
+                           Base::Log::TrimSourcePath(__FILE__), __LINE__, __func__,      \
+                           __VA_ARGS__)

core/Base/Logging/LogEntry.h

@@ -0,0 +1,28 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include <chrono>
+
+#include "LogTypes.h"
+
+namespace Base {
+namespace Log {
+
+/*
+ * A log entry. Log entries are store in a structured format to permit more varied output
+ * formatting on different frontends, as well as facilitating filtering and aggregation.
+ */
+struct Entry {
+  std::chrono::microseconds timestamp = {};
+  Class logClass = {};
+  Level logLevel = {};
+  const char *filename = nullptr;
+  u32 lineNum = 0;
+  std::string function = {};
+  std::string message = {};
+  bool formatted = true;
+};
+
+} // namespace Log
+} // namespace Base

core/Base/Logging/LogTypes.h

@@ -0,0 +1,41 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include "Base/Types.h"
+
+namespace Base {
+namespace Log {
+
+/// Specifies the severity or level of detail of the log message
+enum class Level : const u8 {
+  Trace,      ///< Extremely detailed and repetitive debugging information that is likely to pollute logs
+  Debug,      ///< Less detailed debugging information
+  Info,       ///< Status information from important points during execution
+  Warning,    ///< Minor or potential problems found during execution of a task
+  Error,      ///< Major problems found during execution of a task that prevent it from being completed
+  Critical,   ///< Major problems during execution that threaten the stability of the entire application
+  Guest,      ///< Output from the guest system
+  Count       ///< Total number of logging levels
+};
+
+/*
+ * Specifies the sub-system that generated the log message
+ *
+ * @note If you add a new entry here, also add a corresponding one to `ALL_LOG_CLASSES` in
+ * filtercpp
+ */
+enum class Class : const u8 {
+  Log,                    // Messages about the log system itself
+  Base,                   // System base routines: FS, logging, etc
+  Base_Filesystem,        // Filesystem messages
+  Config,                 // Emulator configuration (including commandline)
+  Debug,                  // Debugging tools
+  System,                 // Base System messages
+  Render,                 // OpenGL and Window messages
+  ARM,
+  Count                   // Total number of logging classes
+};
+
+} // namespace Log
+} // namespace Base

core/Base/Logging/TextFormatter.cpp

@@ -0,0 +1,68 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#include "Base/Assert.h"
+#include "Base/Config.h"
+
+#include "TextFormatter.h"
+
+#include "Filter.h"
+#include "LogEntry.h"
+
+namespace Base {
+namespace Log {
+
+std::string FormatLogMessage(const Entry &entry) {
+  const char *className = GetLogClassName(entry.logClass);
+  const char *levelName = GetLevelName(entry.logLevel);
+
+  if (Config::isLogAdvanced() && entry.filename) {
+    return fmt::format("[{}] <{}> {}:{}:{}: {}", className, levelName, entry.filename,
+      entry.function, entry.lineNum, entry.message);
+  } else {
+    return fmt::format("[{}] <{}> {}", className, levelName, entry.message);
+  }
+}
+
+#define ESC "\x1b"
+void PrintMessage(const std::string &color, const Entry &entry) {
+  std::string msg = entry.formatted ? FormatLogMessage(entry) : entry.message;
+  const std::string str = color + msg.append(ESC "[0m") + (entry.formatted ? "\n" : "");
+  fputs(str.c_str(), stdout);
+}
+
+void PrintColoredMessage(const Entry &entry) {
+  // NOTE: Custom colors can be achieved
+  // std::format("\x1b[{};2;{};{};{}m", color.bg ? 48 : 38, color.r, color.g, color.b)
+  const char *color = "";
+  switch (entry.logLevel) {
+  case Level::Trace: // Grey
+    color = ESC "[1;30m";
+    break;
+  case Level::Debug: // Cyan
+    color = ESC "[0;36m";
+    break;
+  case Level::Info: // Bright gray
+    color = ESC "[0;37m";
+    break;
+  case Level::Warning: // Bright yellow
+    color = ESC "[1;33m";
+    break;
+  case Level::Error: // Bright red
+    color = ESC "[1;31m";
+    break;
+  case Level::Critical: // Bright magenta
+    color = ESC "[1;35m";
+    break;
+  case Level::Guest: // Green
+    color = ESC "[0;92m";
+    break;
+  case Level::Count:
+    UNREACHABLE();
+  }
+
+  PrintMessage(color, entry);
+}
+#undef ESC
+
+} // namespace Log
+} // namespace Base

core/Base/Logging/TextFormatter.h

@@ -0,0 +1,23 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include <string>
+#include <string_view>
+
+namespace Base {
+namespace Log {
+
+struct Entry;
+
+/// Formats a log entry into the provided text buffer.
+std::string FormatLogMessage(const Entry &entry);
+
+/// Formats and prints a log entry to stderr.
+void PrintMessage(const std::string &color, const Entry &entry);
+
+/// Prints the same message as `PrintMessage`, but colored according to the severity level.
+void PrintColoredMessage(const Entry &entry);
+
+} // namespace Log
+} // namespace Base

core/Base/PathUtil.cpp

@@ -0,0 +1,115 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#include "PathUtil.h"
+#include "Base/Logging/Log.h"
+
+#include <fmt/format.h>
+
+#include <unordered_map>
+#include <fstream>
+#ifdef _WIN32
+#include <Windows.h>
+#endif // _WIN32
+#ifdef __APPLE__
+#include <unistd.h>
+#include <libproc.h>
+#endif // __APPLE__
+
+namespace Base {
+namespace FS {
+
+const fs::path GetBinaryDirectory() {
+  fs::path fspath = {};
+#ifdef _WIN32
+  char path[256];
+  GetModuleFileNameA(nullptr, path, sizeof(path));
+  fspath = path;
+#elif __linux__
+  fspath = fs::canonical("/proc/self/exe");
+#elif __APPLE__
+  pid_t pid = getpid();
+  char path[PROC_PIDPATHINFO_MAXSIZE];
+  // While this is fine for a raw executable,
+  // an application bundle is read-only and these files
+  // should instead be placed in Application Support.
+  proc_pidpath(pid, path, sizeof(path));
+  fspath = path;
+#else
+  // Unknown, just return rootdir
+  fspath = fs::current_path() / "Pound";
+#endif
+  return fs::weakly_canonical(fmt::format("{}/..", fspath.string()));
+}
+
+static auto UserPaths = [] {
+  auto currentDir = fs::current_path();
+  auto binaryDir = GetBinaryDirectory();
+  bool nixos = false;
+
+  std::unordered_map<PathType, fs::path> paths;
+
+  const auto insert_path = [&](PathType pound_path, const fs::path &new_path, bool create = true) {
+    if (create && !fs::exists(new_path))
+      fs::create_directory(new_path);
+
+    paths.insert_or_assign(pound_path, new_path);
+  };
+
+  insert_path(PathType::BinaryDir, binaryDir, false);
+  // If we are in the nix store, it's read-only. Change to currentDir if needed
+  if (binaryDir.string().find("/nix/store/") != std::string::npos) {
+    nixos = true;
+  }
+  if (nixos) {
+    currentDir /= "files";
+    insert_path(PathType::RootDir, currentDir);
+    insert_path(PathType::LogDir, currentDir / LOG_DIR);
+  }
+  else {
+    insert_path(PathType::RootDir, currentDir, false);
+    insert_path(PathType::LogDir, binaryDir / LOG_DIR);
+  }
+  return paths;
+}();
+
+std::string PathToUTF8String(const fs::path &path) {
+  const auto u8_string = path.u8string();
+  return std::string{u8_string.begin(), u8_string.end()};
+}
+
+const fs::path &GetUserPath(PathType pound_path) {
+  return UserPaths.at(pound_path);
+}
+
+std::string GetUserPathString(PathType pound_path) {
+  return PathToUTF8String(GetUserPath(pound_path));
+}
+
+std::vector<FileInfo> ListFilesFromPath(const fs::path &path) {
+  std::vector<FileInfo> fileList;
+
+  fs::path _path = fs::weakly_canonical(path);
+
+  for (auto &entry : fs::directory_iterator{ _path }) {
+    FileInfo fileInfo;
+    if (entry.is_directory()) {
+      fileInfo.fileSize = 0;
+      fileInfo.fileType = FileType::Directory;
+    } else {
+      fileInfo.fileSize = fs::file_size(_path);
+      fileInfo.fileType = FileType::File;
+    }
+
+    fileInfo.filePath = entry.path();
+    fileInfo.fileName = entry.path().filename();
+    fileList.push_back(fileInfo);
+  }
+
+    return fileList;
+}
+
+void SetUserPath(PathType pound_path, const fs::path &new_path) {
+  UserPaths.insert_or_assign(pound_path, new_path);
+}
+} // namespace FS
+} // namespace Base

core/Base/PathUtil.h

@@ -0,0 +1,52 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include <filesystem>
+#include <vector>
+
+namespace fs = std::filesystem;
+
+namespace Base {
+namespace FS {
+
+enum class PathType {
+  BinaryDir,  // Binary Path
+  RootDir,    // Execution Path
+  LogDir,     // Where log files are stored
+};
+
+enum FileType {
+  Directory,
+  File
+};
+
+// Represents a given file inside a directory.
+typedef struct _FileInfo {
+  fs::path fileName;  // The file name and extension
+  fs::path filePath;  // The file path
+  size_t fileSize;    // File size
+  FileType fileType;  // File Type (directory/file)
+} FileInfo;
+
+constexpr auto LOG_DIR = "log";
+
+constexpr auto LOG_FILE = "pound_log.txt";
+
+// Converts a given fs::path to a UTF8 string.
+[[nodiscard]] std::string PathToUTF8String(const fs::path &path);
+
+// Returns a fs::path object containing the current 'User' path.
+[[nodiscard]] const fs::path &GetUserPath(PathType user_path);
+
+// Returns a string containing the current 'User' path.
+[[nodiscard]] std::string GetUserPathString(PathType user_path);
+
+// Returns a container with a list of the files inside the specified path.
+[[nodiscard]] std::vector<FileInfo> ListFilesFromPath(const fs::path &path);
+
+// Sets the current Path for a given PathType.
+void SetUserPath(PathType user_path, const fs::path &new_path);
+
+} // namespace FS
+} // namespace Base

core/Base/PolyfillThread.h

@@ -0,0 +1,373 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+//
+// TODO: remove this file when jthread is supported by all compilation targets
+//
+
+#pragma once
+
+#if defined(__cpp_lib_jthread) || !defined(_MSVC_VER)
+
+#include <mutex>
+#include <chrono>
+#include <condition_variable>
+#include <stop_token>
+#include <thread>
+#include <utility>
+
+namespace Base {
+
+template <typename Condvar, typename Lock, typename Pred>
+void CondvarWait(Condvar& cv, std::unique_lock<Lock>& lk, std::stop_token token, Pred&& pred) {
+  cv.wait(lk, token, std::forward<Pred>(pred));
+}
+
+template <typename Rep, typename Period>
+bool StoppableTimedWait(std::stop_token token, const std::chrono::duration<Rep, Period>& rel_time) {
+  std::condition_variable_any cv;
+  std::mutex m;
+
+  // Perform the timed wait.
+  std::unique_lock lk{m};
+  return !cv.wait_for(lk, token, rel_time, [&] { return token.stop_requested(); });
+}
+
+} // namespace Base
+
+#else
+
+#include <atomic>
+#include <chrono>
+#include <condition_variable>
+#include <functional>
+#include <map>
+#include <memory>
+#include <mutex>
+#include <optional>
+#include <thread>
+#include <type_traits>
+#include <utility>
+
+namespace std {
+namespace polyfill {
+
+using stop_state_callback = size_t;
+
+class stop_state {
+public:
+  stop_state() = default;
+  ~stop_state() = default;
+
+  bool request_stop() {
+    unique_lock lk{m_lock};
+
+    if (m_stop_requested) {
+      // Already set, nothing to do.
+      return false;
+    }
+
+    // Mark stop requested.
+    m_stop_requested = true;
+
+    while (!m_callbacks.empty()) {
+      // Get an iterator to the first element.
+      const auto it = m_callbacks.begin();
+
+      // Move the callback function out of the map.
+      function<void()> f;
+      swap(it->second, f);
+
+      // Erase the now-empty map element.
+      m_callbacks.erase(it);
+
+      // Run the callback.
+      if (f) {
+        f();
+      }
+    }
+
+    return true;
+  }
+
+  bool stop_requested() const {
+    unique_lock lk{m_lock};
+    return m_stop_requested;
+  }
+
+  stop_state_callback insert_callback(function<void()> f) {
+    unique_lock lk{m_lock};
+
+    if (m_stop_requested) {
+      // Stop already requested. Don't insert anything,
+      // just run the callback synchronously.
+      if (f) {
+        f();
+      }
+      return 0;
+    }
+
+    // Insert the callback.
+    stop_state_callback ret = ++m_next_callback;
+    m_callbacks.emplace(ret, std::move(f));
+    return ret;
+  }
+
+  void remove_callback(stop_state_callback cb) {
+    unique_lock lk{m_lock};
+    m_callbacks.erase(cb);
+  }
+
+private:
+  mutable recursive_mutex m_lock;
+  map<stop_state_callback, function<void()>> m_callbacks;
+  stop_state_callback m_next_callback{0};
+  bool m_stop_requested{false};
+};
+
+} // namespace polyfill
+
+class stop_token;
+class stop_source;
+struct nostopstate_t {
+  explicit nostopstate_t() = default;
+};
+inline constexpr nostopstate_t nostopstate{};
+
+template <class Callback>
+class stop_callback;
+
+class stop_token {
+public:
+  stop_token() noexcept = default;
+
+  stop_token(const stop_token&) noexcept = default;
+  stop_token(stop_token&&) noexcept = default;
+  stop_token& operator=(const stop_token&) noexcept = default;
+  stop_token& operator=(stop_token&&) noexcept = default;
+  ~stop_token() = default;
+
+  void swap(stop_token& other) noexcept {
+    m_stop_state.swap(other.m_stop_state);
+  }
+
+  [[nodiscard]] bool stop_requested() const noexcept {
+    return m_stop_state && m_stop_state->stop_requested();
+  }
+  [[nodiscard]] bool stop_possible() const noexcept {
+    return m_stop_state != nullptr;
+  }
+
+private:
+  friend class stop_source;
+  template <typename Callback>
+  friend class stop_callback;
+  stop_token(shared_ptr<polyfill::stop_state> stop_state) : m_stop_state(std::move(stop_state)) {}
+
+private:
+  shared_ptr<polyfill::stop_state> m_stop_state;
+};
+
+class stop_source {
+public:
+  stop_source() : m_stop_state(make_shared<polyfill::stop_state>()) {}
+  explicit stop_source(nostopstate_t) noexcept {}
+
+  stop_source(const stop_source&) noexcept = default;
+  stop_source(stop_source&&) noexcept = default;
+  stop_source& operator=(const stop_source&) noexcept = default;
+  stop_source& operator=(stop_source&&) noexcept = default;
+  ~stop_source() = default;
+  void swap(stop_source& other) noexcept {
+    m_stop_state.swap(other.m_stop_state);
+  }
+
+  [[nodiscard]] stop_token get_token() const noexcept {
+    return stop_token(m_stop_state);
+  }
+  [[nodiscard]] bool stop_possible() const noexcept {
+    return m_stop_state != nullptr;
+  }
+  [[nodiscard]] bool stop_requested() const noexcept {
+    return m_stop_state && m_stop_state->stop_requested();
+  }
+  bool request_stop() noexcept {
+    return m_stop_state && m_stop_state->request_stop();
+  }
+
+private:
+  friend class jthread;
+  explicit stop_source(shared_ptr<polyfill::stop_state> stop_state)
+    : m_stop_state(std::move(stop_state)) {}
+
+private:
+  shared_ptr<polyfill::stop_state> m_stop_state;
+};
+
+template <typename Callback>
+class stop_callback {
+  static_assert(is_nothrow_destructible_v<Callback>);
+  static_assert(is_invocable_v<Callback>);
+
+public:
+  using callback_type = Callback;
+
+  template <typename C>
+    requires constructible_from<Callback, C>
+  explicit stop_callback(const stop_token& st,
+               C&& cb) noexcept(is_nothrow_constructible_v<Callback, C>)
+    : m_stop_state(st.m_stop_state) {
+    if (m_stop_state) {
+      m_callback = m_stop_state->insert_callback(std::move(cb));
+    }
+  }
+  template <typename C>
+    requires constructible_from<Callback, C>
+  explicit stop_callback(stop_token&& st,
+               C&& cb) noexcept(is_nothrow_constructible_v<Callback, C>)
+    : m_stop_state(std::move(st.m_stop_state)) {
+    if (m_stop_state) {
+      m_callback = m_stop_state->insert_callback(std::move(cb));
+    }
+  }
+  ~stop_callback() {
+    if (m_stop_state && m_callback) {
+      m_stop_state->remove_callback(m_callback);
+    }
+  }
+
+  stop_callback(const stop_callback&) = delete;
+  stop_callback(stop_callback&&) = delete;
+  stop_callback& operator=(const stop_callback&) = delete;
+  stop_callback& operator=(stop_callback&&) = delete;
+
+private:
+  shared_ptr<polyfill::stop_state> m_stop_state;
+  polyfill::stop_state_callback m_callback;
+};
+
+template <typename Callback>
+stop_callback(stop_token, Callback) -> stop_callback<Callback>;
+
+class jthread {
+public:
+  using id = thread::id;
+  using native_handle_type = thread::native_handle_type;
+
+  jthread() noexcept = default;
+
+  template <typename F, typename... Args,
+        typename = enable_if_t<!is_same_v<remove_cvref_t<F>, jthread>>>
+  explicit jthread(F&& f, Args&&... args)
+    : m_stop_state(make_shared<polyfill::stop_state>()),
+      m_thread(make_thread(std::forward<F>(f), std::forward<Args>(args)...)) {}
+
+  ~jthread() {
+    if (joinable()) {
+      request_stop();
+      join();
+    }
+  }
+
+  jthread(const jthread&) = delete;
+  jthread(jthread&&) noexcept = default;
+  jthread& operator=(const jthread&) = delete;
+
+  jthread& operator=(jthread&& other) noexcept {
+    m_thread.swap(other.m_thread);
+    m_stop_state.swap(other.m_stop_state);
+    return *this;
+  }
+
+  void swap(jthread& other) noexcept {
+    m_thread.swap(other.m_thread);
+    m_stop_state.swap(other.m_stop_state);
+  }
+  [[nodiscard]] bool joinable() const noexcept {
+    return m_thread.joinable();
+  }
+  void join() {
+    m_thread.join();
+  }
+  void detach() {
+    m_thread.detach();
+    m_stop_state.reset();
+  }
+
+  [[nodiscard]] id get_id() const noexcept {
+    return m_thread.get_id();
+  }
+  [[nodiscard]] native_handle_type native_handle() {
+    return m_thread.native_handle();
+  }
+  [[nodiscard]] stop_source get_stop_source() noexcept {
+    return stop_source(m_stop_state);
+  }
+  [[nodiscard]] stop_token get_stop_token() const noexcept {
+    return stop_source(m_stop_state).get_token();
+  }
+  bool request_stop() noexcept {
+    return get_stop_source().request_stop();
+  }
+  [[nodiscard]] static u32 hardware_concurrency() noexcept {
+    return thread::hardware_concurrency();
+  }
+
+private:
+  template <typename F, typename... Args>
+  thread make_thread(F&& f, Args&&... args) {
+    if constexpr (is_invocable_v<decay_t<F>, stop_token, decay_t<Args>...>) {
+      return thread(std::forward<F>(f), get_stop_token(), std::forward<Args>(args)...);
+    } else {
+      return thread(std::forward<F>(f), std::forward<Args>(args)...);
+    }
+  }
+
+  shared_ptr<polyfill::stop_state> m_stop_state;
+  thread m_thread;
+};
+
+} // namespace std
+
+namespace Base {
+
+template <typename Condvar, typename Lock, typename Pred>
+void CondvarWait(Condvar& cv, std::unique_lock<Lock>& lk, std::stop_token token, Pred pred) {
+  if (token.stop_requested()) {
+    return;
+  }
+
+  std::stop_callback callback(token, [&] {
+    { std::scoped_lock lk2{*lk.mutex()}; }
+    cv.notify_all();
+  });
+
+  cv.wait(lk, [&] { return pred() || token.stop_requested(); });
+}
+
+template <typename Rep, typename Period>
+bool StoppableTimedWait(std::stop_token token, const std::chrono::duration<Rep, Period>& rel_time) {
+  if (token.stop_requested()) {
+    return false;
+  }
+
+  bool stop_requested = false;
+  std::condition_variable cv;
+  std::mutex m;
+
+  std::stop_callback cb(token, [&] {
+    // Wake up the waiting thread.
+    {
+      std::scoped_lock lk{m};
+      stop_requested = true;
+    }
+    cv.notify_one();
+  });
+
+  // Perform the timed wait.
+  std::unique_lock lk{m};
+  return !cv.wait_for(lk, rel_time, [&] { return stop_requested; });
+}
+
+} // namespace Base
+
+#endif

core/Base/StringUtil.cpp

@@ -0,0 +1,65 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#include "StringUtil.h"
+
+namespace Base {
+
+#ifdef _WIN32
+static std::wstring CPToUTF16(u32 code_page, std::string_view input) {
+  const s32 size =
+    ::MultiByteToWideChar(code_page, 0, input.data(), static_cast<s32>(input.size()), nullptr, 0);
+
+  if (size == 0) {
+    return {};
+  }
+
+  std::wstring output(size, L'\0');
+
+  if (size != ::MultiByteToWideChar(code_page, 0, input.data(), static_cast<s32>(input.size()),
+                  &output[0], static_cast<s32>(output.size()))) {
+    output.clear();
+  }
+
+  return output;
+}
+#endif // ifdef _WIN32
+
+std::string UTF16ToUTF8(const std::wstring_view &input) {
+#ifdef _WIN32
+  const s32 size = ::WideCharToMultiByte(CP_UTF8, 0, input.data(), static_cast<s32>(input.size()),
+                      nullptr, 0, nullptr, nullptr);
+  if (size == 0) {
+    return {};
+  }
+
+  std::string output(size, '\0');
+
+  if (size != ::WideCharToMultiByte(CP_UTF8, 0, input.data(), static_cast<s32>(input.size()),
+                  &output[0], static_cast<s32>(output.size()), nullptr,
+                  nullptr)) {
+    output.clear();
+  }
+  return output;
+#else
+  // Very hacky way to get cross-platform wstring conversion
+  return std::filesystem::path(input).string();
+#endif // ifdef _WIN32
+}
+
+std::wstring UTF8ToUTF16W(const std::string_view &input) {
+#ifdef _WIN32
+  return CPToUTF16(CP_UTF8, input);
+#else
+  // Very hacky way to get cross-platform wstring conversion
+  return std::filesystem::path(input).wstring();
+#endif // ifdef _WIN32
+}
+
+std::string ToLower(const std::string &str) {
+  std::string out = str;
+  std::transform(str.begin(), str.end(), out.data(), ::tolower);
+  return out;
+}
+
+
+} // namespace Base

core/Base/StringUtil.h

@@ -0,0 +1,22 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include <string>
+#include <string_view>
+#include <algorithm>
+#include <cctype>
+
+#ifdef _WIN32
+#include <Windows.h>
+#else
+#include <filesystem>
+#endif
+
+namespace Base {
+
+[[nodiscard]] std::string UTF16ToUTF8(const std::wstring_view &input);
+[[nodiscard]] std::wstring UTF8ToUTF16W(const std::string_view &str);
+[[nodiscard]] std::string ToLower(const std::string &str);
+
+} // namespace Base

core/Base/Thread.cpp

@@ -0,0 +1,214 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#include "Thread.h" 
+#include "Error.h"
+#include "Logging/Log.h"
+
+#ifdef __APPLE__
+#include <mach/mach.h>
+#include <mach/mach_time.h>
+#include <pthread.h>
+#elif defined(_WIN32)
+#include <Windows.h>
+#include "StringUtil.h"
+#else
+
+#if defined(__Bitrig__) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__OpenBSD__)
+#include <pthread_np.h>
+#else
+#include <pthread.h>
+#endif
+#include <sched.h>
+#endif
+#ifndef _WIN32
+#include <unistd.h>
+#endif
+#include <thread>
+#include <algorithm>
+
+#ifdef __FreeBSD__
+#define cpu_set_t cpuset_t
+#endif
+
+namespace Base {
+
+#ifdef __APPLE__
+
+void SetCurrentThreadRealtime(const std::chrono::nanoseconds period_ns) {
+  // CPU time to grant.
+  const std::chrono::nanoseconds computation_ns = period_ns / 2;
+
+  // Determine the timebase for converting time to ticks.
+  struct mach_timebase_info timebase {};
+  mach_timebase_info(&timebase);
+  const auto ticks_per_ns =
+    static_cast<f64>(timebase.denom) / static_cast<f64>(timebase.numer);
+
+  const auto period_ticks =
+    static_cast<u32>(static_cast<f64>(period_ns.count()) * ticks_per_ns);
+  const auto computation_ticks =
+    static_cast<u32>(static_cast<f64>(computation_ns.count()) * ticks_per_ns);
+
+  thread_time_constraint_policy policy = {
+    .period = period_ticks,
+    .computation = computation_ticks,
+    // Should not matter since preemptible is false, but needs to be >= computation regardless.
+    .constraint = computation_ticks,
+    .preemptible = false,
+  };
+
+  int ret = thread_policy_set(
+    pthread_mach_thread_np(pthread_self()), THREAD_TIME_CONSTRAINT_POLICY,
+    reinterpret_cast<thread_policy_t>(&policy), THREAD_TIME_CONSTRAINT_POLICY_COUNT);
+  if (ret != KERN_SUCCESS) {
+    LOG_ERROR(Base, "Could not set thread to real-time with period {} ns: {}",
+          period_ns.count(), ret);
+  }
+}
+
+#else
+
+void SetCurrentThreadRealtime(const std::chrono::nanoseconds period_ns) {
+  // Not implemented
+}
+
+#endif
+
+#ifdef _WIN32
+
+void SetCurrentThreadPriority(ThreadPriority new_priority) {
+  const auto handle = GetCurrentThread();
+  int windows_priority = 0;
+  switch (new_priority) {
+  case ThreadPriority::Low:
+    windows_priority = THREAD_PRIORITY_BELOW_NORMAL;
+    break;
+  case ThreadPriority::Normal:
+    windows_priority = THREAD_PRIORITY_NORMAL;
+    break;
+  case ThreadPriority::High:
+    windows_priority = THREAD_PRIORITY_ABOVE_NORMAL;
+    break;
+  case ThreadPriority::VeryHigh:
+    windows_priority = THREAD_PRIORITY_HIGHEST;
+    break;
+  case ThreadPriority::Critical:
+    windows_priority = THREAD_PRIORITY_TIME_CRITICAL;
+    break;
+  default:
+    windows_priority = THREAD_PRIORITY_NORMAL;
+    break;
+  }
+  SetThreadPriority(handle, windows_priority);
+}
+
+static void AccurateSleep(std::chrono::nanoseconds duration) {
+  LARGE_INTEGER interval{
+    .QuadPart = -1 * (duration.count() / 100u),
+  };
+  const HANDLE timer = ::CreateWaitableTimer(nullptr, TRUE, nullptr);
+  SetWaitableTimer(timer, &interval, 0, nullptr, nullptr, 0);
+  WaitForSingleObject(timer, INFINITE);
+  ::CloseHandle(timer);
+}
+
+#else
+
+void SetCurrentThreadPriority(ThreadPriority new_priority) {
+  pthread_t this_thread = pthread_self();
+
+  constexpr auto scheduling_type = SCHED_OTHER;
+  const s32 max_prio = sched_get_priority_max(scheduling_type);
+  const s32 min_prio = sched_get_priority_min(scheduling_type);
+  const u32 level = std::max(static_cast<u32>(new_priority) + 1, 4U);
+
+  struct sched_param params;
+  if (max_prio > min_prio) {
+    params.sched_priority = min_prio + ((max_prio - min_prio) * level) / 4;
+  } else {
+    params.sched_priority = min_prio - ((min_prio - max_prio) * level) / 4;
+  }
+
+  pthread_setschedparam(this_thread, scheduling_type, &params);
+}
+
+static void AccurateSleep(std::chrono::nanoseconds duration) {
+  std::this_thread::sleep_for(duration);
+}
+
+#endif
+
+#if defined(_MSC_VER) || defined(__MINGW32__)
+
+// Sets the debugger-visible name of the current thread.
+void SetCurrentThreadName(const std::string_view &name) {
+  SetThreadDescription(GetCurrentThread(), UTF8ToUTF16W(name).data());
+}
+
+void SetThreadName(void *thread, const std::string_view &name) {
+  const char* nchar = name.data();
+  std::string truncated(nchar, std::min(name.size(), static_cast<size_t>(15)));
+  SetThreadDescription(thread, UTF8ToUTF16W(name).data());
+}
+
+#else // !MSVC_VER, so must be POSIX threads
+
+// MinGW with the POSIX threading model does not support pthread_setname_np
+#if !defined(_WIN32) || defined(_MSC_VER)
+void SetCurrentThreadName(const std::string_view &name) {
+  const char* nchar = name.data();
+#ifdef __APPLE__
+  pthread_setname_np(nchar);
+#elif defined(__Bitrig__) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__OpenBSD__)
+  pthread_set_name_np(pthread_self(), nchar);
+#elif defined(__NetBSD__)
+  pthread_setname_np(pthread_self(), "%s", (void*)nchar);
+#elif defined(__linux__)
+  // Linux limits thread names to 15 characters and will outright reject any
+  // attempt to set a longer name with ERANGE.
+  std::string truncated(nchar, std::min(name.size(), static_cast<size_t>(15)));
+  if (int e = pthread_setname_np(pthread_self(), truncated.c_str())) {
+    errno = e;
+  }
+#else
+  pthread_setname_np(pthread_self(), nchar);
+#endif
+}
+
+void SetThreadName(void *thread, const std::string_view &name) {
+  // TODO
+}
+#endif
+
+#if defined(_WIN32)
+void SetCurrentThreadName(const std::string_view &name) {
+  // Do Nothing on MinGW
+}
+
+void SetThreadName(void *thread, const std::string_view &name) {
+  // Do Nothing on MinGW
+}
+#endif
+
+#endif
+
+AccurateTimer::AccurateTimer(std::chrono::nanoseconds target_interval) :
+  target_interval(target_interval)
+{}
+
+void AccurateTimer::Start() {
+  const auto begin_sleep = std::chrono::high_resolution_clock::now();
+  if (total_wait.count() > 0) {
+    AccurateSleep(total_wait);
+  }
+  start_time = std::chrono::high_resolution_clock::now();
+  total_wait -= std::chrono::duration_cast<std::chrono::nanoseconds>(start_time - begin_sleep);
+}
+
+void AccurateTimer::End() {
+  const auto now = std::chrono::high_resolution_clock::now();
+  total_wait +=
+    target_interval - std::chrono::duration_cast<std::chrono::nanoseconds>(now - start_time);
+}
+
+} // namespace Base

core/Base/Thread.h

@@ -0,0 +1,43 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include <chrono>
+
+namespace Base {
+
+enum class ThreadPriority : u32 {
+  Low = 0,
+  Normal = 1,
+  High = 2,
+  VeryHigh = 3,
+  Critical = 4
+};
+
+void SetCurrentThreadRealtime(std::chrono::nanoseconds period_ns);
+
+void SetCurrentThreadPriority(ThreadPriority new_priority);
+
+void SetCurrentThreadName(const std::string_view &name);
+
+void SetThreadName(void *thread, const std::string_view &name);
+
+class AccurateTimer {
+  std::chrono::nanoseconds target_interval{};
+  std::chrono::nanoseconds total_wait{};
+
+  std::chrono::high_resolution_clock::time_point start_time;
+
+public:
+  explicit AccurateTimer(std::chrono::nanoseconds target_interval);
+
+  void Start();
+
+  void End();
+
+  std::chrono::nanoseconds GetTotalWait() const {
+    return total_wait;
+  }
+};
+
+} // namespace Base

core/Base/Types.h

@@ -0,0 +1,52 @@
+// Copyright 2025 Xenon Emulator Project. All rights reserved.
+
+#pragma once
+
+#include <fmt/format.h>
+
+#include "Arch.h"
+
+// Signed
+using s8 = signed char;
+using s16 = signed short;
+using s32 = signed int;
+using sl32 = signed long;
+using s64 = signed long long;
+
+// Unsigned
+using u8 = unsigned char;
+using u16 = unsigned short;
+using u32 = unsigned int;
+using ul32 = unsigned long;
+using u64 = unsigned long long;
+
+using uptr = uintptr_t;
+
+// Floating point
+using f32 = float;
+using f64 = double;
+
+// Function pointer
+template <typename T>
+  requires std::is_function_v<T>
+using fptr = std::add_pointer_t<T>;
+
+// UDLs for memory size values
+[[nodiscard]] constexpr u64 operator""_KB(const u64 x) {
+  return 1000ULL * x;
+}
+[[nodiscard]] constexpr u64 operator""_KiB(const u64 x) {
+  return 1024ULL * x;
+}
+[[nodiscard]] constexpr u64 operator""_MB(const u64 x) {
+  return 1000_KB * x;
+}
+[[nodiscard]] constexpr u64 operator""_MiB(const u64 x) {
+  return 1024_KiB * x;
+}
+[[nodiscard]] constexpr u64 operator""_GB(const u64 x) {
+  return 1000_MB * x;
+}
+[[nodiscard]] constexpr u64 operator""_GiB(const u64 x) {
+  return 1024_MiB * x;
+}

core/Base/swap.h

@@ -0,0 +1,665 @@
+// SPDX-FileCopyrightText: 2012 PPSSPP Project
+// SPDX-FileCopyrightText: 2012 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+// Official git repository and contact information can be found at
+// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
+
+#pragma once
+
+#if defined(_MSC_VER)
+#include <cstdlib>
+#endif
+#include <bit>
+#include <cstring>
+#include <type_traits>
+#include "common/common_types.h"
+
+namespace Common {
+
+#ifdef _MSC_VER
+[[nodiscard]] inline u16 swap16(u16 data) noexcept {
+    return _byteswap_ushort(data);
+}
+[[nodiscard]] inline u32 swap32(u32 data) noexcept {
+    return _byteswap_ulong(data);
+}
+[[nodiscard]] inline u64 swap64(u64 data) noexcept {
+    return _byteswap_uint64(data);
+}
+#elif defined(__clang__) || defined(__GNUC__)
+#if defined(__Bitrig__) || defined(__OpenBSD__)
+// redefine swap16, swap32, swap64 as inline functions
+#undef swap16
+#undef swap32
+#undef swap64
+#endif
+[[nodiscard]] inline u16 swap16(u16 data) noexcept {
+    return __builtin_bswap16(data);
+}
+[[nodiscard]] inline u32 swap32(u32 data) noexcept {
+    return __builtin_bswap32(data);
+}
+[[nodiscard]] inline u64 swap64(u64 data) noexcept {
+    return __builtin_bswap64(data);
+}
+#else
+// Generic implementation.
+[[nodiscard]] inline u16 swap16(u16 data) noexcept {
+    return (data >> 8) | (data << 8);
+}
+[[nodiscard]] inline u32 swap32(u32 data) noexcept {
+    return ((data & 0xFF000000U) >> 24) | ((data & 0x00FF0000U) >> 8) |
+           ((data & 0x0000FF00U) << 8) | ((data & 0x000000FFU) << 24);
+}
+[[nodiscard]] inline u64 swap64(u64 data) noexcept {
+    return ((data & 0xFF00000000000000ULL) >> 56) | ((data & 0x00FF000000000000ULL) >> 40) |
+           ((data & 0x0000FF0000000000ULL) >> 24) | ((data & 0x000000FF00000000ULL) >> 8) |
+           ((data & 0x00000000FF000000ULL) << 8) | ((data & 0x0000000000FF0000ULL) << 24) |
+           ((data & 0x000000000000FF00ULL) << 40) | ((data & 0x00000000000000FFULL) << 56);
+}
+#endif
+
+[[nodiscard]] inline float swapf(float f) noexcept {
+    static_assert(sizeof(u32) == sizeof(float), "float must be the same size as uint32_t.");
+
+    u32 value;
+    std::memcpy(&value, &f, sizeof(u32));
+
+    value = swap32(value);
+    std::memcpy(&f, &value, sizeof(u32));
+
+    return f;
+}
+
+[[nodiscard]] inline double swapd(double f) noexcept {
+    static_assert(sizeof(u64) == sizeof(double), "double must be the same size as uint64_t.");
+
+    u64 value;
+    std::memcpy(&value, &f, sizeof(u64));
+
+    value = swap64(value);
+    std::memcpy(&f, &value, sizeof(u64));
+
+    return f;
+}
+
+} // Namespace Common
+
+template <typename T, typename F>
+struct swap_struct_t {
+    using swapped_t = swap_struct_t;
+
+protected:
+    T value;
+
+    static T swap(T v) {
+        return F::swap(v);
+    }
+
+public:
+    T swap() const {
+        return swap(value);
+    }
+    swap_struct_t() = default;
+    swap_struct_t(const T& v) : value(swap(v)) {}
+
+    template <typename S>
+    swapped_t& operator=(const S& source) {
+        value = swap(static_cast<T>(source));
+        return *this;
+    }
+
+    operator s8() const {
+        return static_cast<s8>(swap());
+    }
+    operator u8() const {
+        return static_cast<u8>(swap());
+    }
+    operator s16() const {
+        return static_cast<s16>(swap());
+    }
+    operator u16() const {
+        return static_cast<u16>(swap());
+    }
+    operator s32() const {
+        return static_cast<s32>(swap());
+    }
+    operator u32() const {
+        return static_cast<u32>(swap());
+    }
+    operator s64() const {
+        return static_cast<s64>(swap());
+    }
+    operator u64() const {
+        return static_cast<u64>(swap());
+    }
+    operator float() const {
+        return static_cast<float>(swap());
+    }
+    operator double() const {
+        return static_cast<double>(swap());
+    }
+
+    // +v
+    swapped_t operator+() const {
+        return +swap();
+    }
+    // -v
+    swapped_t operator-() const {
+        return -swap();
+    }
+
+    // v / 5
+    swapped_t operator/(const swapped_t& i) const {
+        return swap() / i.swap();
+    }
+    template <typename S>
+    swapped_t operator/(const S& i) const {
+        return swap() / i;
+    }
+
+    // v * 5
+    swapped_t operator*(const swapped_t& i) const {
+        return swap() * i.swap();
+    }
+    template <typename S>
+    swapped_t operator*(const S& i) const {
+        return swap() * i;
+    }
+
+    // v + 5
+    swapped_t operator+(const swapped_t& i) const {
+        return swap() + i.swap();
+    }
+    template <typename S>
+    swapped_t operator+(const S& i) const {
+        return swap() + static_cast<T>(i);
+    }
+    // v - 5
+    swapped_t operator-(const swapped_t& i) const {
+        return swap() - i.swap();
+    }
+    template <typename S>
+    swapped_t operator-(const S& i) const {
+        return swap() - static_cast<T>(i);
+    }
+
+    // v += 5
+    swapped_t& operator+=(const swapped_t& i) {
+        value = swap(swap() + i.swap());
+        return *this;
+    }
+    template <typename S>
+    swapped_t& operator+=(const S& i) {
+        value = swap(swap() + static_cast<T>(i));
+        return *this;
+    }
+    // v -= 5
+    swapped_t& operator-=(const swapped_t& i) {
+        value = swap(swap() - i.swap());
+        return *this;
+    }
+    template <typename S>
+    swapped_t& operator-=(const S& i) {
+        value = swap(swap() - static_cast<T>(i));
+        return *this;
+    }
+
+    // ++v
+    swapped_t& operator++() {
+        value = swap(swap() + 1);
+        return *this;
+    }
+    // --v
+    swapped_t& operator--() {
+        value = swap(swap() - 1);
+        return *this;
+    }
+
+    // v++
+    swapped_t operator++(int) {
+        swapped_t old = *this;
+        value = swap(swap() + 1);
+        return old;
+    }
+    // v--
+    swapped_t operator--(int) {
+        swapped_t old = *this;
+        value = swap(swap() - 1);
+        return old;
+    }
+    // Comparison
+    // v == i
+    bool operator==(const swapped_t& i) const {
+        return swap() == i.swap();
+    }
+    template <typename S>
+    bool operator==(const S& i) const {
+        return swap() == i;
+    }
+
+    // v != i
+    bool operator!=(const swapped_t& i) const {
+        return swap() != i.swap();
+    }
+    template <typename S>
+    bool operator!=(const S& i) const {
+        return swap() != i;
+    }
+
+    // v > i
+    bool operator>(const swapped_t& i) const {
+        return swap() > i.swap();
+    }
+    template <typename S>
+    bool operator>(const S& i) const {
+        return swap() > i;
+    }
+
+    // v < i
+    bool operator<(const swapped_t& i) const {
+        return swap() < i.swap();
+    }
+    template <typename S>
+    bool operator<(const S& i) const {
+        return swap() < i;
+    }
+
+    // v >= i
+    bool operator>=(const swapped_t& i) const {
+        return swap() >= i.swap();
+    }
+    template <typename S>
+    bool operator>=(const S& i) const {
+        return swap() >= i;
+    }
+
+    // v <= i
+    bool operator<=(const swapped_t& i) const {
+        return swap() <= i.swap();
+    }
+    template <typename S>
+    bool operator<=(const S& i) const {
+        return swap() <= i;
+    }
+
+    // logical
+    swapped_t operator!() const {
+        return !swap();
+    }
+
+    // bitmath
+    swapped_t operator~() const {
+        return ~swap();
+    }
+
+    swapped_t operator&(const swapped_t& b) const {
+        return swap() & b.swap();
+    }
+    template <typename S>
+    swapped_t operator&(const S& b) const {
+        return swap() & b;
+    }
+    swapped_t& operator&=(const swapped_t& b) {
+        value = swap(swap() & b.swap());
+        return *this;
+    }
+    template <typename S>
+    swapped_t& operator&=(const S b) {
+        value = swap(swap() & b);
+        return *this;
+    }
+
+    swapped_t operator|(const swapped_t& b) const {
+        return swap() | b.swap();
+    }
+    template <typename S>
+    swapped_t operator|(const S& b) const {
+        return swap() | b;
+    }
+    swapped_t& operator|=(const swapped_t& b) {
+        value = swap(swap() | b.swap());
+        return *this;
+    }
+    template <typename S>
+    swapped_t& operator|=(const S& b) {
+        value = swap(swap() | b);
+        return *this;
+    }
+
+    swapped_t operator^(const swapped_t& b) const {
+        return swap() ^ b.swap();
+    }
+    template <typename S>
+    swapped_t operator^(const S& b) const {
+        return swap() ^ b;
+    }
+    swapped_t& operator^=(const swapped_t& b) {
+        value = swap(swap() ^ b.swap());
+        return *this;
+    }
+    template <typename S>
+    swapped_t& operator^=(const S& b) {
+        value = swap(swap() ^ b);
+        return *this;
+    }
+
+    template <typename S>
+    swapped_t operator<<(const S& b) const {
+        return swap() << b;
+    }
+    template <typename S>
+    swapped_t& operator<<=(const S& b) const {
+        value = swap(swap() << b);
+        return *this;
+    }
+
+    template <typename S>
+    swapped_t operator>>(const S& b) const {
+        return swap() >> b;
+    }
+    template <typename S>
+    swapped_t& operator>>=(const S& b) const {
+        value = swap(swap() >> b);
+        return *this;
+    }
+
+    // Member
+    /** todo **/
+
+    // Arithmetic
+    template <typename S, typename T2, typename F2>
+    friend S operator+(const S& p, const swapped_t v);
+
+    template <typename S, typename T2, typename F2>
+    friend S operator-(const S& p, const swapped_t v);
+
+    template <typename S, typename T2, typename F2>
+    friend S operator/(const S& p, const swapped_t v);
+
+    template <typename S, typename T2, typename F2>
+    friend S operator*(const S& p, const swapped_t v);
+
+    template <typename S, typename T2, typename F2>
+    friend S operator%(const S& p, const swapped_t v);
+
+    // Arithmetic + assignments
+    template <typename S, typename T2, typename F2>
+    friend S operator+=(const S& p, const swapped_t v);
+
+    template <typename S, typename T2, typename F2>
+    friend S operator-=(const S& p, const swapped_t v);
+
+    // Bitmath
+    template <typename S, typename T2, typename F2>
+    friend S operator&(const S& p, const swapped_t v);
+
+    // Comparison
+    template <typename S, typename T2, typename F2>
+    friend bool operator<(const S& p, const swapped_t v);
+
+    template <typename S, typename T2, typename F2>
+    friend bool operator>(const S& p, const swapped_t v);
+
+    template <typename S, typename T2, typename F2>
+    friend bool operator<=(const S& p, const swapped_t v);
+
+    template <typename S, typename T2, typename F2>
+    friend bool operator>=(const S& p, const swapped_t v);
+
+    template <typename S, typename T2, typename F2>
+    friend bool operator!=(const S& p, const swapped_t v);
+
+    template <typename S, typename T2, typename F2>
+    friend bool operator==(const S& p, const swapped_t v);
+};
+
+// Arithmetic
+template <typename S, typename T, typename F>
+S operator+(const S& i, const swap_struct_t<T, F> v) {
+    return i + v.swap();
+}
+
+template <typename S, typename T, typename F>
+S operator-(const S& i, const swap_struct_t<T, F> v) {
+    return i - v.swap();
+}
+
+template <typename S, typename T, typename F>
+S operator/(const S& i, const swap_struct_t<T, F> v) {
+    return i / v.swap();
+}
+
+template <typename S, typename T, typename F>
+S operator*(const S& i, const swap_struct_t<T, F> v) {
+    return i * v.swap();
+}
+
+template <typename S, typename T, typename F>
+S operator%(const S& i, const swap_struct_t<T, F> v) {
+    return i % v.swap();
+}
+
+// Arithmetic + assignments
+template <typename S, typename T, typename F>
+S& operator+=(S& i, const swap_struct_t<T, F> v) {
+    i += v.swap();
+    return i;
+}
+
+template <typename S, typename T, typename F>
+S& operator-=(S& i, const swap_struct_t<T, F> v) {
+    i -= v.swap();
+    return i;
+}
+
+// Logical
+template <typename S, typename T, typename F>
+S operator&(const S& i, const swap_struct_t<T, F> v) {
+    return i & v.swap();
+}
+
+// Comparison
+template <typename S, typename T, typename F>
+bool operator<(const S& p, const swap_struct_t<T, F> v) {
+    return p < v.swap();
+}
+template <typename S, typename T, typename F>
+bool operator>(const S& p, const swap_struct_t<T, F> v) {
+    return p > v.swap();
+}
+template <typename S, typename T, typename F>
+bool operator<=(const S& p, const swap_struct_t<T, F> v) {
+    return p <= v.swap();
+}
+template <typename S, typename T, typename F>
+bool operator>=(const S& p, const swap_struct_t<T, F> v) {
+    return p >= v.swap();
+}
+template <typename S, typename T, typename F>
+bool operator!=(const S& p, const swap_struct_t<T, F> v) {
+    return p != v.swap();
+}
+template <typename S, typename T, typename F>
+bool operator==(const S& p, const swap_struct_t<T, F> v) {
+    return p == v.swap();
+}
+
+template <typename T>
+struct swap_64_t {
+    static T swap(T x) {
+        return static_cast<T>(Common::swap64(x));
+    }
+};
+
+template <typename T>
+struct swap_32_t {
+    static T swap(T x) {
+        return static_cast<T>(Common::swap32(x));
+    }
+};
+
+template <typename T>
+struct swap_16_t {
+    static T swap(T x) {
+        return static_cast<T>(Common::swap16(x));
+    }
+};
+
+template <typename T>
+struct swap_float_t {
+    static T swap(T x) {
+        return static_cast<T>(Common::swapf(x));
+    }
+};
+
+template <typename T>
+struct swap_double_t {
+    static T swap(T x) {
+        return static_cast<T>(Common::swapd(x));
+    }
+};
+
+template <typename T>
+struct swap_enum_t {
+    static_assert(std::is_enum_v<T>);
+    using base = std::underlying_type_t<T>;
+
+public:
+    swap_enum_t() = default;
+    swap_enum_t(const T& v) : value(swap(v)) {}
+
+    swap_enum_t& operator=(const T& v) {
+        value = swap(v);
+        return *this;
+    }
+
+    operator T() const {
+        return swap(value);
+    }
+
+    explicit operator base() const {
+        return static_cast<base>(swap(value));
+    }
+
+protected:
+    T value{};
+    // clang-format off
+    using swap_t = std::conditional_t<
+        std::is_same_v<base, u16>, swap_16_t<u16>, std::conditional_t<
+        std::is_same_v<base, s16>, swap_16_t<s16>, std::conditional_t<
+        std::is_same_v<base, u32>, swap_32_t<u32>, std::conditional_t<
+        std::is_same_v<base, s32>, swap_32_t<s32>, std::conditional_t<
+        std::is_same_v<base, u64>, swap_64_t<u64>, std::conditional_t<
+        std::is_same_v<base, s64>, swap_64_t<s64>, void>>>>>>;
+    // clang-format on
+    static T swap(T x) {
+        return static_cast<T>(swap_t::swap(static_cast<base>(x)));
+    }
+};
+
+struct SwapTag {}; // Use the different endianness from the system
+struct KeepTag {}; // Use the same endianness as the system
+
+template <typename T, typename Tag>
+struct AddEndian;
+
+// KeepTag specializations
+
+template <typename T>
+struct AddEndian<T, KeepTag> {
+    using type = T;
+};
+
+// SwapTag specializations
+
+template <>
+struct AddEndian<u8, SwapTag> {
+    using type = u8;
+};
+
+template <>
+struct AddEndian<u16, SwapTag> {
+    using type = swap_struct_t<u16, swap_16_t<u16>>;
+};
+
+template <>
+struct AddEndian<u32, SwapTag> {
+    using type = swap_struct_t<u32, swap_32_t<u32>>;
+};
+
+template <>
+struct AddEndian<u64, SwapTag> {
+    using type = swap_struct_t<u64, swap_64_t<u64>>;
+};
+
+template <>
+struct AddEndian<s8, SwapTag> {
+    using type = s8;
+};
+
+template <>
+struct AddEndian<s16, SwapTag> {
+    using type = swap_struct_t<s16, swap_16_t<s16>>;
+};
+
+template <>
+struct AddEndian<s32, SwapTag> {
+    using type = swap_struct_t<s32, swap_32_t<s32>>;
+};
+
+template <>
+struct AddEndian<s64, SwapTag> {
+    using type = swap_struct_t<s64, swap_64_t<s64>>;
+};
+
+template <>
+struct AddEndian<float, SwapTag> {
+    using type = swap_struct_t<float, swap_float_t<float>>;
+};
+
+template <>
+struct AddEndian<double, SwapTag> {
+    using type = swap_struct_t<double, swap_double_t<double>>;
+};
+
+template <typename T>
+struct AddEndian<T, SwapTag> {
+    static_assert(std::is_enum_v<T>);
+    using type = swap_enum_t<T>;
+};
+
+// Alias LETag/BETag as KeepTag/SwapTag depending on the system
+using LETag = std::conditional_t<std::endian::native == std::endian::little, KeepTag, SwapTag>;
+using BETag = std::conditional_t<std::endian::native == std::endian::big, KeepTag, SwapTag>;
+
+// Aliases for LE types
+using u16_le = AddEndian<u16, LETag>::type;
+using u32_le = AddEndian<u32, LETag>::type;
+using u64_le = AddEndian<u64, LETag>::type;
+
+using s16_le = AddEndian<s16, LETag>::type;
+using s32_le = AddEndian<s32, LETag>::type;
+using s64_le = AddEndian<s64, LETag>::type;
+
+template <typename T>
+using enum_le = std::enable_if_t<std::is_enum_v<T>, typename AddEndian<T, LETag>::type>;
+
+using float_le = AddEndian<float, LETag>::type;
+using double_le = AddEndian<double, LETag>::type;
+
+// Aliases for BE types
+using u16_be = AddEndian<u16, BETag>::type;
+using u32_be = AddEndian<u32, BETag>::type;
+using u64_be = AddEndian<u64, BETag>::type;
+
+using s16_be = AddEndian<s16, BETag>::type;
+using s32_be = AddEndian<s32, BETag>::type;
+using s64_be = AddEndian<s64, BETag>::type;
+
+template <typename T>
+using enum_be = std::enable_if_t<std::is_enum_v<T>, typename AddEndian<T, BETag>::type>;
+
+using float_be = AddEndian<float, BETag>::type;
+using double_be = AddEndian<double, BETag>::type;