ci: Don't fetch submodules when fetching PRs

Project A.R.T. Advanced Rendering Techniques

.ci/scripts/merge/apply-patches-by-label-private.py

@@ -25,7 +25,7 @@ def check_individual(repo_id, pr_id):
 
 def merge_pr(pn, ref):
     print("Matched PR# %s" % pn)
-    print(subprocess.check_output(["git", "fetch", "https://%sdev.azure.com/%s/_git/%s" % (user, org, repo), ref, "-f"]))
+    print(subprocess.check_output(["git", "fetch", "https://%sdev.azure.com/%s/_git/%s" % (user, org, repo), ref, "-f", "--no-recurse-submodules"]))
     print(subprocess.check_output(["git", "merge", "--squash", 'origin/' + ref.replace('refs/heads/','')]))
     print(subprocess.check_output(["git", "commit", "-m\"Merge %s PR %s\"" % (tagline, pn)]))
 

.ci/scripts/merge/apply-patches-by-label.py

@@ -1,7 +1,7 @@
 # Download all pull requests as patches that match a specific label
 # Usage: python download-patches-by-label.py <Label to Match> <Root Path Folder to DL to>
 
-import requests, sys, json, urllib3.request, shutil, subprocess, os
+import requests, sys, json, urllib3.request, shutil, subprocess, os, traceback
 
 tagline = sys.argv[2]
 
@@ -25,7 +25,7 @@ def do_page(page):
             if (check_individual(pr["labels"])):
                 pn = pr["number"]
                 print("Matched PR# %s" % pn)
-                print(subprocess.check_output(["git", "fetch", "https://github.com/yuzu-emu/yuzu.git", "pull/%s/head:pr-%s" % (pn, pn), "-f"]))
+                print(subprocess.check_output(["git", "fetch", "https://github.com/yuzu-emu/yuzu.git", "pull/%s/head:pr-%s" % (pn, pn), "-f", "--no-recurse-submodules"]))
                 print(subprocess.check_output(["git", "merge", "--squash", "pr-%s" % pn]))
                 print(subprocess.check_output(["git", "commit", "-m\"Merge %s PR %s\"" % (tagline, pn)]))
 
@@ -33,4 +33,5 @@ try:
     for i in range(1,30):
         do_page(i)
 except:
+    traceback.print_exc(file=sys.stdout)
     sys.exit(-1)

CMakeLists.txt

@@ -57,7 +57,7 @@ function(check_submodules_present)
         string(REGEX REPLACE "path *= *" "" module ${module})
         if (NOT EXISTS "${PROJECT_SOURCE_DIR}/${module}/.git")
             message(FATAL_ERROR "Git submodule ${module} not found. "
-                    "Please run: \ngit submodule update --init --recursive")
+                    "Please run: git submodule update --init --recursive")
         endif()
     endforeach()
 endfunction()
@@ -166,7 +166,7 @@ macro(yuzu_find_packages)
     # Capitalization matters here. We need the naming to match the generated paths from Conan
     set(REQUIRED_LIBS
     #    Cmake Pkg Prefix  Version     Conan Pkg
-        "Catch2            2.13        catch2/2.13.0"
+        "Catch2            2.13.7      catch2/2.13.7"
         "fmt               8.0         fmt/8.0.0"
         "lz4               1.8         lz4/1.9.2"
         "nlohmann_json     3.8         nlohmann_json/3.8.0"
@@ -600,6 +600,7 @@ if (YUZU_USE_BUNDLED_FFMPEG)
                 ${LIBVA_LIBRARIES})
             set(FFmpeg_HWACCEL_FLAGS
                 --enable-hwaccel=h264_vaapi
+                --enable-hwaccel=vp8_vaapi
                 --enable-hwaccel=vp9_vaapi
                 --enable-libdrm)
             list(APPEND FFmpeg_HWACCEL_INCLUDE_DIRS
@@ -620,6 +621,7 @@ if (YUZU_USE_BUNDLED_FFMPEG)
                 --enable-ffnvcodec
                 --enable-nvdec
                 --enable-hwaccel=h264_nvdec
+                --enable-hwaccel=vp8_nvdec
                 --enable-hwaccel=vp9_nvdec
                 --extra-cflags=-I${CUDA_INCLUDE_DIRS}
             )
@@ -670,6 +672,7 @@ if (YUZU_USE_BUNDLED_FFMPEG)
                     --disable-postproc
                     --disable-swresample
                     --enable-decoder=h264
+                    --enable-decoder=vp8
                     --enable-decoder=vp9
                     --cc="${CMAKE_C_COMPILER}"
                     --cxx="${CMAKE_CXX_COMPILER}"

externals/FidelityFX-FSR/license.txt

@@ -0,0 +1,19 @@
+Copyright (c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

src/common/CMakeLists.txt

@@ -55,6 +55,7 @@ add_library(common STATIC
     dynamic_library.h
     error.cpp
     error.h
+    expected.h
     fiber.cpp
     fiber.h
     fs/file.cpp

src/common/expected.h

@@ -0,0 +1,987 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+// This is based on the proposed implementation of std::expected (P0323)
+// https://github.com/TartanLlama/expected/blob/master/include/tl/expected.hpp
+
+#pragma once
+
+#include <type_traits>
+#include <utility>
+
+namespace Common {
+
+template <typename T, typename E>
+class Expected;
+
+template <typename E>
+class Unexpected {
+public:
+    Unexpected() = delete;
+
+    constexpr explicit Unexpected(const E& e) : m_val{e} {}
+
+    constexpr explicit Unexpected(E&& e) : m_val{std::move(e)} {}
+
+    constexpr E& value() & {
+        return m_val;
+    }
+
+    constexpr const E& value() const& {
+        return m_val;
+    }
+
+    constexpr E&& value() && {
+        return std::move(m_val);
+    }
+
+    constexpr const E&& value() const&& {
+        return std::move(m_val);
+    }
+
+private:
+    E m_val;
+};
+
+template <typename E>
+constexpr auto operator<=>(const Unexpected<E>& lhs, const Unexpected<E>& rhs) {
+    return lhs.value() <=> rhs.value();
+}
+
+struct unexpect_t {
+    constexpr explicit unexpect_t() = default;
+};
+
+namespace detail {
+
+struct no_init_t {
+    constexpr explicit no_init_t() = default;
+};
+
+/**
+ * This specialization is for when T is not trivially destructible,
+ * so the destructor must be called on destruction of `expected'
+ * Additionally, this requires E to be trivially destructible
+ */
+template <typename T, typename E, bool = std::is_trivially_destructible_v<T>>
+requires std::is_trivially_destructible_v<E>
+struct expected_storage_base {
+    constexpr expected_storage_base() : m_val{T{}}, m_has_val{true} {}
+
+    constexpr expected_storage_base(no_init_t) : m_has_val{false} {}
+
+    template <typename... Args, std::enable_if_t<std::is_constructible_v<T, Args&&...>>* = nullptr>
+    constexpr expected_storage_base(std::in_place_t, Args&&... args)
+        : m_val{std::forward<Args>(args)...}, m_has_val{true} {}
+
+    template <typename U, typename... Args,
+              std::enable_if_t<std::is_constructible_v<T, std::initializer_list<U>&, Args&&...>>* =
+                  nullptr>
+    constexpr expected_storage_base(std::in_place_t, std::initializer_list<U> il, Args&&... args)
+        : m_val{il, std::forward<Args>(args)...}, m_has_val{true} {}
+
+    template <typename... Args, std::enable_if_t<std::is_constructible_v<E, Args&&...>>* = nullptr>
+    constexpr explicit expected_storage_base(unexpect_t, Args&&... args)
+        : m_unexpect{std::forward<Args>(args)...}, m_has_val{false} {}
+
+    template <typename U, typename... Args,
+              std::enable_if_t<std::is_constructible_v<E, std::initializer_list<U>&, Args&&...>>* =
+                  nullptr>
+    constexpr explicit expected_storage_base(unexpect_t, std::initializer_list<U> il,
+                                             Args&&... args)
+        : m_unexpect{il, std::forward<Args>(args)...}, m_has_val{false} {}
+
+    ~expected_storage_base() {
+        if (m_has_val) {
+            m_val.~T();
+        }
+    }
+
+    union {
+        T m_val;
+        Unexpected<E> m_unexpect;
+    };
+
+    bool m_has_val;
+};
+
+/**
+ * This specialization is for when T is trivially destructible,
+ * so the destructor of `expected` can be trivial
+ * Additionally, this requires E to be trivially destructible
+ */
+template <typename T, typename E>
+requires std::is_trivially_destructible_v<E>
+struct expected_storage_base<T, E, true> {
+    constexpr expected_storage_base() : m_val{T{}}, m_has_val{true} {}
+
+    constexpr expected_storage_base(no_init_t) : m_has_val{false} {}
+
+    template <typename... Args, std::enable_if_t<std::is_constructible_v<T, Args&&...>>* = nullptr>
+    constexpr expected_storage_base(std::in_place_t, Args&&... args)
+        : m_val{std::forward<Args>(args)...}, m_has_val{true} {}
+
+    template <typename U, typename... Args,
+              std::enable_if_t<std::is_constructible_v<T, std::initializer_list<U>&, Args&&...>>* =
+                  nullptr>
+    constexpr expected_storage_base(std::in_place_t, std::initializer_list<U> il, Args&&... args)
+        : m_val{il, std::forward<Args>(args)...}, m_has_val{true} {}
+
+    template <typename... Args, std::enable_if_t<std::is_constructible_v<E, Args&&...>>* = nullptr>
+    constexpr explicit expected_storage_base(unexpect_t, Args&&... args)
+        : m_unexpect{std::forward<Args>(args)...}, m_has_val{false} {}
+
+    template <typename U, typename... Args,
+              std::enable_if_t<std::is_constructible_v<E, std::initializer_list<U>&, Args&&...>>* =
+                  nullptr>
+    constexpr explicit expected_storage_base(unexpect_t, std::initializer_list<U> il,
+                                             Args&&... args)
+        : m_unexpect{il, std::forward<Args>(args)...}, m_has_val{false} {}
+
+    ~expected_storage_base() = default;
+
+    union {
+        T m_val;
+        Unexpected<E> m_unexpect;
+    };
+
+    bool m_has_val;
+};
+
+template <typename T, typename E>
+struct expected_operations_base : expected_storage_base<T, E> {
+    using expected_storage_base<T, E>::expected_storage_base;
+
+    template <typename... Args>
+    void construct(Args&&... args) noexcept {
+        new (std::addressof(this->m_val)) T{std::forward<Args>(args)...};
+        this->m_has_val = true;
+    }
+
+    template <typename Rhs>
+    void construct_with(Rhs&& rhs) noexcept {
+        new (std::addressof(this->m_val)) T{std::forward<Rhs>(rhs).get()};
+        this->m_has_val = true;
+    }
+
+    template <typename... Args>
+    void construct_error(Args&&... args) noexcept {
+        new (std::addressof(this->m_unexpect)) Unexpected<E>{std::forward<Args>(args)...};
+        this->m_has_val = false;
+    }
+
+    void assign(const expected_operations_base& rhs) noexcept {
+        if (!this->m_has_val && rhs.m_has_val) {
+            geterr().~Unexpected<E>();
+            construct(rhs.get());
+        } else {
+            assign_common(rhs);
+        }
+    }
+
+    void assign(expected_operations_base&& rhs) noexcept {
+        if (!this->m_has_val && rhs.m_has_val) {
+            geterr().~Unexpected<E>();
+            construct(std::move(rhs).get());
+        } else {
+            assign_common(rhs);
+        }
+    }
+
+    template <typename Rhs>
+    void assign_common(Rhs&& rhs) {
+        if (this->m_has_val) {
+            if (rhs.m_has_val) {
+                get() = std::forward<Rhs>(rhs).get();
+            } else {
+                destroy_val();
+                construct_error(std::forward<Rhs>(rhs).geterr());
+            }
+        } else {
+            if (!rhs.m_has_val) {
+                geterr() = std::forward<Rhs>(rhs).geterr();
+            }
+        }
+    }
+
+    bool has_value() const {
+        return this->m_has_val;
+    }
+
+    constexpr T& get() & {
+        return this->m_val;
+    }
+
+    constexpr const T& get() const& {
+        return this->m_val;
+    }
+
+    constexpr T&& get() && {
+        return std::move(this->m_val);
+    }
+
+    constexpr const T&& get() const&& {
+        return std::move(this->m_val);
+    }
+
+    constexpr Unexpected<E>& geterr() & {
+        return this->m_unexpect;
+    }
+
+    constexpr const Unexpected<E>& geterr() const& {
+        return this->m_unexpect;
+    }
+
+    constexpr Unexpected<E>&& geterr() && {
+        return std::move(this->m_unexpect);
+    }
+
+    constexpr const Unexpected<E>&& geterr() const&& {
+        return std::move(this->m_unexpect);
+    }
+
+    constexpr void destroy_val() {
+        get().~T();
+    }
+};
+
+/**
+ * This manages conditionally having a trivial copy constructor
+ * This specialization is for when T is trivially copy constructible
+ * Additionally, this requires E to be trivially copy constructible
+ */
+template <typename T, typename E, bool = std::is_trivially_copy_constructible_v<T>>
+requires std::is_trivially_copy_constructible_v<E>
+struct expected_copy_base : expected_operations_base<T, E> {
+    using expected_operations_base<T, E>::expected_operations_base;
+};
+
+/**
+ * This specialization is for when T is not trivially copy constructible
+ * Additionally, this requires E to be trivially copy constructible
+ */
+template <typename T, typename E>
+requires std::is_trivially_copy_constructible_v<E>
+struct expected_copy_base<T, E, false> : expected_operations_base<T, E> {
+    using expected_operations_base<T, E>::expected_operations_base;
+
+    expected_copy_base() = default;
+
+    expected_copy_base(const expected_copy_base& rhs)
+        : expected_operations_base<T, E>{no_init_t{}} {
+        if (rhs.has_value()) {
+            this->construct_with(rhs);
+        } else {
+            this->construct_error(rhs.geterr());
+        }
+    }
+
+    expected_copy_base(expected_copy_base&&) = default;
+
+    expected_copy_base& operator=(const expected_copy_base&) = default;
+
+    expected_copy_base& operator=(expected_copy_base&&) = default;
+};
+
+/**
+ * This manages conditionally having a trivial move constructor
+ * This specialization is for when T is trivially move constructible
+ * Additionally, this requires E to be trivially move constructible
+ */
+template <typename T, typename E, bool = std::is_trivially_move_constructible_v<T>>
+requires std::is_trivially_move_constructible_v<E>
+struct expected_move_base : expected_copy_base<T, E> {
+    using expected_copy_base<T, E>::expected_copy_base;
+};
+
+/**
+ * This specialization is for when T is not trivially move constructible
+ * Additionally, this requires E to be trivially move constructible
+ */
+template <typename T, typename E>
+requires std::is_trivially_move_constructible_v<E>
+struct expected_move_base<T, E, false> : expected_copy_base<T, E> {
+    using expected_copy_base<T, E>::expected_copy_base;
+
+    expected_move_base() = default;
+
+    expected_move_base(const expected_move_base&) = default;
+
+    expected_move_base(expected_move_base&& rhs) noexcept(std::is_nothrow_move_constructible_v<T>)
+        : expected_copy_base<T, E>{no_init_t{}} {
+        if (rhs.has_value()) {
+            this->construct_with(std::move(rhs));
+        } else {
+            this->construct_error(std::move(rhs.geterr()));
+        }
+    }
+
+    expected_move_base& operator=(const expected_move_base&) = default;
+
+    expected_move_base& operator=(expected_move_base&&) = default;
+};
+
+/**
+ * This manages conditionally having a trivial copy assignment operator
+ * This specialization is for when T is trivially copy assignable
+ * Additionally, this requires E to be trivially copy assignable
+ */
+template <typename T, typename E,
+          bool = std::conjunction_v<std::is_trivially_copy_assignable<T>,
+                                    std::is_trivially_copy_constructible<T>,
+                                    std::is_trivially_destructible<T>>>
+requires std::conjunction_v<std::is_trivially_copy_assignable<E>,
+                            std::is_trivially_copy_constructible<E>,
+                            std::is_trivially_destructible<E>>
+struct expected_copy_assign_base : expected_move_base<T, E> {
+    using expected_move_base<T, E>::expected_move_base;
+};
+
+/**
+ * This specialization is for when T is not trivially copy assignable
+ * Additionally, this requires E to be trivially copy assignable
+ */
+template <typename T, typename E>
+requires std::conjunction_v<std::is_trivially_copy_assignable<E>,
+                            std::is_trivially_copy_constructible<E>,
+                            std::is_trivially_destructible<E>>
+struct expected_copy_assign_base<T, E, false> : expected_move_base<T, E> {
+    using expected_move_base<T, E>::expected_move_base;
+
+    expected_copy_assign_base() = default;
+
+    expected_copy_assign_base(const expected_copy_assign_base&) = default;
+
+    expected_copy_assign_base(expected_copy_assign_base&&) = default;
+
+    expected_copy_assign_base& operator=(const expected_copy_assign_base& rhs) {
+        this->assign(rhs);
+        return *this;
+    }
+
+    expected_copy_assign_base& operator=(expected_copy_assign_base&&) = default;
+};
+
+/**
+ * This manages conditionally having a trivial move assignment operator
+ * This specialization is for when T is trivially move assignable
+ * Additionally, this requires E to be trivially move assignable
+ */
+template <typename T, typename E,
+          bool = std::conjunction_v<std::is_trivially_move_assignable<T>,
+                                    std::is_trivially_move_constructible<T>,
+                                    std::is_trivially_destructible<T>>>
+requires std::conjunction_v<std::is_trivially_move_assignable<E>,
+                            std::is_trivially_move_constructible<E>,
+                            std::is_trivially_destructible<E>>
+struct expected_move_assign_base : expected_copy_assign_base<T, E> {
+    using expected_copy_assign_base<T, E>::expected_copy_assign_base;
+};
+
+/**
+ * This specialization is for when T is not trivially move assignable
+ * Additionally, this requires E to be trivially move assignable
+ */
+template <typename T, typename E>
+requires std::conjunction_v<std::is_trivially_move_assignable<E>,
+                            std::is_trivially_move_constructible<E>,
+                            std::is_trivially_destructible<E>>
+struct expected_move_assign_base<T, E, false> : expected_copy_assign_base<T, E> {
+    using expected_copy_assign_base<T, E>::expected_copy_assign_base;
+
+    expected_move_assign_base() = default;
+
+    expected_move_assign_base(const expected_move_assign_base&) = default;
+
+    expected_move_assign_base(expected_move_assign_base&&) = default;
+
+    expected_move_assign_base& operator=(const expected_move_assign_base&) = default;
+
+    expected_move_assign_base& operator=(expected_move_assign_base&& rhs) noexcept(
+        std::conjunction_v<std::is_nothrow_move_constructible<T>,
+                           std::is_nothrow_move_assignable<T>>) {
+        this->assign(std::move(rhs));
+        return *this;
+    }
+};
+
+/**
+ * expected_delete_ctor_base will conditionally delete copy and move constructors
+ * depending on whether T is copy/move constructible
+ * Additionally, this requires E to be copy/move constructible
+ */
+template <typename T, typename E, bool EnableCopy = std::is_copy_constructible_v<T>,
+          bool EnableMove = std::is_move_constructible_v<T>>
+requires std::conjunction_v<std::is_copy_constructible<E>, std::is_move_constructible<E>>
+struct expected_delete_ctor_base {
+    expected_delete_ctor_base() = default;
+    expected_delete_ctor_base(const expected_delete_ctor_base&) = default;
+    expected_delete_ctor_base(expected_delete_ctor_base&&) noexcept = default;
+    expected_delete_ctor_base& operator=(const expected_delete_ctor_base&) = default;
+    expected_delete_ctor_base& operator=(expected_delete_ctor_base&&) noexcept = default;
+};
+
+template <typename T, typename E>
+requires std::conjunction_v<std::is_copy_constructible<E>, std::is_move_constructible<E>>
+struct expected_delete_ctor_base<T, E, true, false> {
+    expected_delete_ctor_base() = default;
+    expected_delete_ctor_base(const expected_delete_ctor_base&) = default;
+    expected_delete_ctor_base(expected_delete_ctor_base&&) noexcept = delete;
+    expected_delete_ctor_base& operator=(const expected_delete_ctor_base&) = default;
+    expected_delete_ctor_base& operator=(expected_delete_ctor_base&&) noexcept = default;
+};
+
+template <typename T, typename E>
+requires std::conjunction_v<std::is_copy_constructible<E>, std::is_move_constructible<E>>
+struct expected_delete_ctor_base<T, E, false, true> {
+    expected_delete_ctor_base() = default;
+    expected_delete_ctor_base(const expected_delete_ctor_base&) = delete;
+    expected_delete_ctor_base(expected_delete_ctor_base&&) noexcept = default;
+    expected_delete_ctor_base& operator=(const expected_delete_ctor_base&) = default;
+    expected_delete_ctor_base& operator=(expected_delete_ctor_base&&) noexcept = default;
+};
+
+template <typename T, typename E>
+requires std::conjunction_v<std::is_copy_constructible<E>, std::is_move_constructible<E>>
+struct expected_delete_ctor_base<T, E, false, false> {
+    expected_delete_ctor_base() = default;
+    expected_delete_ctor_base(const expected_delete_ctor_base&) = delete;
+    expected_delete_ctor_base(expected_delete_ctor_base&&) noexcept = delete;
+    expected_delete_ctor_base& operator=(const expected_delete_ctor_base&) = default;
+    expected_delete_ctor_base& operator=(expected_delete_ctor_base&&) noexcept = default;
+};
+
+/**
+ * expected_delete_assign_base will conditionally delete copy and move assignment operators
+ * depending on whether T is copy/move constructible + assignable
+ * Additionally, this requires E to be copy/move constructible + assignable
+ */
+template <
+    typename T, typename E,
+    bool EnableCopy = std::conjunction_v<std::is_copy_constructible<T>, std::is_copy_assignable<T>>,
+    bool EnableMove = std::conjunction_v<std::is_move_constructible<T>, std::is_move_assignable<T>>>
+requires std::conjunction_v<std::is_copy_constructible<E>, std::is_move_constructible<E>,
+                            std::is_copy_assignable<E>, std::is_move_assignable<E>>
+struct expected_delete_assign_base {
+    expected_delete_assign_base() = default;
+    expected_delete_assign_base(const expected_delete_assign_base&) = default;
+    expected_delete_assign_base(expected_delete_assign_base&&) noexcept = default;
+    expected_delete_assign_base& operator=(const expected_delete_assign_base&) = default;
+    expected_delete_assign_base& operator=(expected_delete_assign_base&&) noexcept = default;
+};
+
+template <typename T, typename E>
+requires std::conjunction_v<std::is_copy_constructible<E>, std::is_move_constructible<E>,
+                            std::is_copy_assignable<E>, std::is_move_assignable<E>>
+struct expected_delete_assign_base<T, E, true, false> {
+    expected_delete_assign_base() = default;
+    expected_delete_assign_base(const expected_delete_assign_base&) = default;
+    expected_delete_assign_base(expected_delete_assign_base&&) noexcept = default;
+    expected_delete_assign_base& operator=(const expected_delete_assign_base&) = default;
+    expected_delete_assign_base& operator=(expected_delete_assign_base&&) noexcept = delete;
+};
+
+template <typename T, typename E>
+requires std::conjunction_v<std::is_copy_constructible<E>, std::is_move_constructible<E>,
+                            std::is_copy_assignable<E>, std::is_move_assignable<E>>
+struct expected_delete_assign_base<T, E, false, true> {
+    expected_delete_assign_base() = default;
+    expected_delete_assign_base(const expected_delete_assign_base&) = default;
+    expected_delete_assign_base(expected_delete_assign_base&&) noexcept = default;
+    expected_delete_assign_base& operator=(const expected_delete_assign_base&) = delete;
+    expected_delete_assign_base& operator=(expected_delete_assign_base&&) noexcept = default;
+};
+
+template <typename T, typename E>
+requires std::conjunction_v<std::is_copy_constructible<E>, std::is_move_constructible<E>,
+                            std::is_copy_assignable<E>, std::is_move_assignable<E>>
+struct expected_delete_assign_base<T, E, false, false> {
+    expected_delete_assign_base() = default;
+    expected_delete_assign_base(const expected_delete_assign_base&) = default;
+    expected_delete_assign_base(expected_delete_assign_base&&) noexcept = default;
+    expected_delete_assign_base& operator=(const expected_delete_assign_base&) = delete;
+    expected_delete_assign_base& operator=(expected_delete_assign_base&&) noexcept = delete;
+};
+
+/**
+ * This is needed to be able to construct the expected_default_ctor_base which follows,
+ * while still conditionally deleting the default constructor.
+ */
+struct default_constructor_tag {
+    constexpr explicit default_constructor_tag() = default;
+};
+
+/**
+ * expected_default_ctor_base will ensure that expected
+ * has a deleted default constructor if T is not default constructible
+ * This specialization is for when T is default constructible
+ */
+template <typename T, typename E, bool Enable = std::is_default_constructible_v<T>>
+struct expected_default_ctor_base {
+    constexpr expected_default_ctor_base() noexcept = default;
+    constexpr expected_default_ctor_base(expected_default_ctor_base const&) noexcept = default;
+    constexpr expected_default_ctor_base(expected_default_ctor_base&&) noexcept = default;
+    expected_default_ctor_base& operator=(expected_default_ctor_base const&) noexcept = default;
+    expected_default_ctor_base& operator=(expected_default_ctor_base&&) noexcept = default;
+
+    constexpr explicit expected_default_ctor_base(default_constructor_tag) {}
+};
+
+template <typename T, typename E>
+struct expected_default_ctor_base<T, E, false> {
+    constexpr expected_default_ctor_base() noexcept = delete;
+    constexpr expected_default_ctor_base(expected_default_ctor_base const&) noexcept = default;
+    constexpr expected_default_ctor_base(expected_default_ctor_base&&) noexcept = default;
+    expected_default_ctor_base& operator=(expected_default_ctor_base const&) noexcept = default;
+    expected_default_ctor_base& operator=(expected_default_ctor_base&&) noexcept = default;
+
+    constexpr explicit expected_default_ctor_base(default_constructor_tag) {}
+};
+
+template <typename T, typename E, typename U>
+using expected_enable_forward_value =
+    std::enable_if_t<std::is_constructible_v<T, U&&> &&
+                     !std::is_same_v<std::remove_cvref_t<U>, std::in_place_t> &&
+                     !std::is_same_v<Expected<T, E>, std::remove_cvref_t<U>> &&
+                     !std::is_same_v<Unexpected<E>, std::remove_cvref_t<U>>>;
+
+template <typename T, typename E, typename U, typename G, typename UR, typename GR>
+using expected_enable_from_other = std::enable_if_t<
+    std::is_constructible_v<T, UR> && std::is_constructible_v<E, GR> &&
+    !std::is_constructible_v<T, Expected<U, G>&> && !std::is_constructible_v<T, Expected<U, G>&&> &&
+    !std::is_constructible_v<T, const Expected<U, G>&> &&
+    !std::is_constructible_v<T, const Expected<U, G>&&> &&
+    !std::is_convertible_v<Expected<U, G>&, T> && !std::is_convertible_v<Expected<U, G>&&, T> &&
+    !std::is_convertible_v<const Expected<U, G>&, T> &&
+    !std::is_convertible_v<const Expected<U, G>&&, T>>;
+
+} // namespace detail
+
+template <typename T, typename E>
+class Expected : private detail::expected_move_assign_base<T, E>,
+                 private detail::expected_delete_ctor_base<T, E>,
+                 private detail::expected_delete_assign_base<T, E>,
+                 private detail::expected_default_ctor_base<T, E> {
+public:
+    using value_type = T;
+    using error_type = E;
+    using unexpected_type = Unexpected<E>;
+
+    constexpr Expected() = default;
+    constexpr Expected(const Expected&) = default;
+    constexpr Expected(Expected&&) = default;
+    Expected& operator=(const Expected&) = default;
+    Expected& operator=(Expected&&) = default;
+
+    template <typename... Args, std::enable_if_t<std::is_constructible_v<T, Args&&...>>* = nullptr>
+    constexpr Expected(std::in_place_t, Args&&... args)
+        : impl_base{std::in_place, std::forward<Args>(args)...},
+          ctor_base{detail::default_constructor_tag{}} {}
+
+    template <typename U, typename... Args,
+              std::enable_if_t<std::is_constructible_v<T, std::initializer_list<U>&, Args&&...>>* =
+                  nullptr>
+    constexpr Expected(std::in_place_t, std::initializer_list<U> il, Args&&... args)
+        : impl_base{std::in_place, il, std::forward<Args>(args)...},
+          ctor_base{detail::default_constructor_tag{}} {}
+
+    template <typename G = E, std::enable_if_t<std::is_constructible_v<E, const G&>>* = nullptr,
+              std::enable_if_t<!std::is_convertible_v<const G&, E>>* = nullptr>
+    constexpr explicit Expected(const Unexpected<G>& e)
+        : impl_base{unexpect_t{}, e.value()}, ctor_base{detail::default_constructor_tag{}} {}
+
+    template <typename G = E, std::enable_if_t<std::is_constructible_v<E, const G&>>* = nullptr,
+              std::enable_if_t<std::is_convertible_v<const G&, E>>* = nullptr>
+    constexpr Expected(Unexpected<G> const& e)
+        : impl_base{unexpect_t{}, e.value()}, ctor_base{detail::default_constructor_tag{}} {}
+
+    template <typename G = E, std::enable_if_t<std::is_constructible_v<E, G&&>>* = nullptr,
+              std::enable_if_t<!std::is_convertible_v<G&&, E>>* = nullptr>
+    constexpr explicit Expected(Unexpected<G>&& e) noexcept(std::is_nothrow_constructible_v<E, G&&>)
+        : impl_base{unexpect_t{}, std::move(e.value())}, ctor_base{
+                                                             detail::default_constructor_tag{}} {}
+
+    template <typename G = E, std::enable_if_t<std::is_constructible_v<E, G&&>>* = nullptr,
+              std::enable_if_t<std::is_convertible_v<G&&, E>>* = nullptr>
+    constexpr Expected(Unexpected<G>&& e) noexcept(std::is_nothrow_constructible_v<E, G&&>)
+        : impl_base{unexpect_t{}, std::move(e.value())}, ctor_base{
+                                                             detail::default_constructor_tag{}} {}
+
+    template <typename... Args, std::enable_if_t<std::is_constructible_v<E, Args&&...>>* = nullptr>
+    constexpr explicit Expected(unexpect_t, Args&&... args)
+        : impl_base{unexpect_t{}, std::forward<Args>(args)...},
+          ctor_base{detail::default_constructor_tag{}} {}
+
+    template <typename U, typename... Args,
+              std::enable_if_t<std::is_constructible_v<E, std::initializer_list<U>&, Args&&...>>* =
+                  nullptr>
+    constexpr explicit Expected(unexpect_t, std::initializer_list<U> il, Args&&... args)
+        : impl_base{unexpect_t{}, il, std::forward<Args>(args)...},
+          ctor_base{detail::default_constructor_tag{}} {}
+
+    template <typename U, typename G,
+              std::enable_if_t<!(std::is_convertible_v<U const&, T> &&
+                                 std::is_convertible_v<G const&, E>)>* = nullptr,
+              detail::expected_enable_from_other<T, E, U, G, const U&, const G&>* = nullptr>
+    constexpr explicit Expected(const Expected<U, G>& rhs)
+        : ctor_base{detail::default_constructor_tag{}} {
+        if (rhs.has_value()) {
+            this->construct(*rhs);
+        } else {
+            this->construct_error(rhs.error());
+        }
+    }
+
+    template <typename U, typename G,
+              std::enable_if_t<(std::is_convertible_v<U const&, T> &&
+                                std::is_convertible_v<G const&, E>)>* = nullptr,
+              detail::expected_enable_from_other<T, E, U, G, const U&, const G&>* = nullptr>
+    constexpr Expected(const Expected<U, G>& rhs) : ctor_base{detail::default_constructor_tag{}} {
+        if (rhs.has_value()) {
+            this->construct(*rhs);
+        } else {
+            this->construct_error(rhs.error());
+        }
+    }
+
+    template <typename U, typename G,
+              std::enable_if_t<!(std::is_convertible_v<U&&, T> && std::is_convertible_v<G&&, E>)>* =
+                  nullptr,
+              detail::expected_enable_from_other<T, E, U, G, U&&, G&&>* = nullptr>
+    constexpr explicit Expected(Expected<U, G>&& rhs)
+        : ctor_base{detail::default_constructor_tag{}} {
+        if (rhs.has_value()) {
+            this->construct(std::move(*rhs));
+        } else {
+            this->construct_error(std::move(rhs.error()));
+        }
+    }
+
+    template <typename U, typename G,
+              std::enable_if_t<(std::is_convertible_v<U&&, T> && std::is_convertible_v<G&&, E>)>* =
+                  nullptr,
+              detail::expected_enable_from_other<T, E, U, G, U&&, G&&>* = nullptr>
+    constexpr Expected(Expected<U, G>&& rhs) : ctor_base{detail::default_constructor_tag{}} {
+        if (rhs.has_value()) {
+            this->construct(std::move(*rhs));
+        } else {
+            this->construct_error(std::move(rhs.error()));
+        }
+    }
+
+    template <typename U = T, std::enable_if_t<!std::is_convertible_v<U&&, T>>* = nullptr,
+              detail::expected_enable_forward_value<T, E, U>* = nullptr>
+    constexpr explicit Expected(U&& v) : Expected{std::in_place, std::forward<U>(v)} {}
+
+    template <typename U = T, std::enable_if_t<std::is_convertible_v<U&&, T>>* = nullptr,
+              detail::expected_enable_forward_value<T, E, U>* = nullptr>
+    constexpr Expected(U&& v) : Expected{std::in_place, std::forward<U>(v)} {}
+
+    template <typename U = T, typename G = T,
+              std::enable_if_t<std::is_nothrow_constructible_v<T, U&&>>* = nullptr,
+              std::enable_if_t<(
+                  !std::is_same_v<Expected<T, E>, std::remove_cvref_t<U>> &&
+                  !std::conjunction_v<std::is_scalar<T>, std::is_same<T, std::remove_cvref_t<U>>> &&
+                  std::is_constructible_v<T, U> && std::is_assignable_v<G&, U> &&
+                  std::is_nothrow_move_constructible_v<E>)>* = nullptr>
+    Expected& operator=(U&& v) {
+        if (has_value()) {
+            val() = std::forward<U>(v);
+        } else {
+            err().~Unexpected<E>();
+            new (valptr()) T{std::forward<U>(v)};
+            this->m_has_val = true;
+        }
+
+        return *this;
+    }
+
+    template <typename U = T, typename G = T,
+              std::enable_if_t<!std::is_nothrow_constructible_v<T, U&&>>* = nullptr,
+              std::enable_if_t<(
+                  !std::is_same_v<Expected<T, E>, std::remove_cvref_t<U>> &&
+                  !std::conjunction_v<std::is_scalar<T>, std::is_same<T, std::remove_cvref_t<U>>> &&
+                  std::is_constructible_v<T, U> && std::is_assignable_v<G&, U> &&
+                  std::is_nothrow_move_constructible_v<E>)>* = nullptr>
+    Expected& operator=(U&& v) {
+        if (has_value()) {
+            val() = std::forward<U>(v);
+        } else {
+            auto tmp = std::move(err());
+            err().~Unexpected<E>();
+            new (valptr()) T{std::forward<U>(v)};
+            this->m_has_val = true;
+        }
+
+        return *this;
+    }
+
+    template <typename G = E, std::enable_if_t<std::is_nothrow_copy_constructible_v<G> &&
+                                               std::is_assignable_v<G&, G>>* = nullptr>
+    Expected& operator=(const Unexpected<G>& rhs) {
+        if (!has_value()) {
+            err() = rhs;
+        } else {
+            this->destroy_val();
+            new (errptr()) Unexpected<E>{rhs};
+            this->m_has_val = false;
+        }
+
+        return *this;
+    }
+
+    template <typename G = E, std::enable_if_t<std::is_nothrow_move_constructible_v<G> &&
+                                               std::is_move_assignable_v<G>>* = nullptr>
+    Expected& operator=(Unexpected<G>&& rhs) noexcept {
+        if (!has_value()) {
+            err() = std::move(rhs);
+        } else {
+            this->destroy_val();
+            new (errptr()) Unexpected<E>{std::move(rhs)};
+            this->m_has_val = false;
+        }
+
+        return *this;
+    }
+
+    template <typename... Args,
+              std::enable_if_t<std::is_nothrow_constructible_v<T, Args&&...>>* = nullptr>
+    void emplace(Args&&... args) {
+        if (has_value()) {
+            val() = T{std::forward<Args>(args)...};
+        } else {
+            err().~Unexpected<E>();
+            new (valptr()) T{std::forward<Args>(args)...};
+            this->m_has_val = true;
+        }
+    }
+
+    template <typename... Args,
+              std::enable_if_t<!std::is_nothrow_constructible_v<T, Args&&...>>* = nullptr>
+    void emplace(Args&&... args) {
+        if (has_value()) {
+            val() = T{std::forward<Args>(args)...};
+        } else {
+            auto tmp = std::move(err());
+            err().~Unexpected<E>();
+            new (valptr()) T{std::forward<Args>(args)...};
+            this->m_has_val = true;
+        }
+    }
+
+    template <typename U, typename... Args,
+              std::enable_if_t<std::is_nothrow_constructible_v<T, std::initializer_list<U>&,
+                                                               Args&&...>>* = nullptr>
+    void emplace(std::initializer_list<U> il, Args&&... args) {
+        if (has_value()) {
+            T t{il, std::forward<Args>(args)...};
+            val() = std::move(t);
+        } else {
+            err().~Unexpected<E>();
+            new (valptr()) T{il, std::forward<Args>(args)...};
+            this->m_has_val = true;
+        }
+    }
+
+    template <typename U, typename... Args,
+              std::enable_if_t<!std::is_nothrow_constructible_v<T, std::initializer_list<U>&,
+                                                                Args&&...>>* = nullptr>
+    void emplace(std::initializer_list<U> il, Args&&... args) {
+        if (has_value()) {
+            T t{il, std::forward<Args>(args)...};
+            val() = std::move(t);
+        } else {
+            auto tmp = std::move(err());
+            err().~Unexpected<E>();
+            new (valptr()) T{il, std::forward<Args>(args)...};
+            this->m_has_val = true;
+        }
+    }
+
+    constexpr T* operator->() {
+        return valptr();
+    }
+
+    constexpr const T* operator->() const {
+        return valptr();
+    }
+
+    template <typename U = T>
+    constexpr U& operator*() & {
+        return val();
+    }
+
+    template <typename U = T>
+    constexpr const U& operator*() const& {
+        return val();
+    }
+
+    template <typename U = T>
+    constexpr U&& operator*() && {
+        return std::move(val());
+    }
+
+    template <typename U = T>
+    constexpr const U&& operator*() const&& {
+        return std::move(val());
+    }
+
+    constexpr bool has_value() const noexcept {
+        return this->m_has_val;
+    }
+
+    constexpr explicit operator bool() const noexcept {
+        return this->m_has_val;
+    }
+
+    template <typename U = T>
+    constexpr U& value() & {
+        return val();
+    }
+
+    template <typename U = T>
+    constexpr const U& value() const& {
+        return val();
+    }
+
+    template <typename U = T>
+    constexpr U&& value() && {
+        return std::move(val());
+    }
+
+    template <typename U = T>
+    constexpr const U&& value() const&& {
+        return std::move(val());
+    }
+
+    constexpr E& error() & {
+        return err().value();
+    }
+
+    constexpr const E& error() const& {
+        return err().value();
+    }
+
+    constexpr E&& error() && {
+        return std::move(err().value());
+    }
+
+    constexpr const E&& error() const&& {
+        return std::move(err().value());
+    }
+
+    template <typename U>
+    constexpr T value_or(U&& v) const& {
+        static_assert(std::is_copy_constructible_v<T> && std::is_convertible_v<U&&, T>,
+                      "T must be copy-constructible and convertible from U&&");
+        return bool(*this) ? **this : static_cast<T>(std::forward<U>(v));
+    }
+
+    template <typename U>
+    constexpr T value_or(U&& v) && {
+        static_assert(std::is_move_constructible_v<T> && std::is_convertible_v<U&&, T>,
+                      "T must be move-constructible and convertible from U&&");
+        return bool(*this) ? std::move(**this) : static_cast<T>(std::forward<U>(v));
+    }
+
+private:
+    static_assert(!std::is_reference_v<T>, "T must not be a reference");
+    static_assert(!std::is_same_v<T, std::remove_cv_t<std::in_place_t>>,
+                  "T must not be std::in_place_t");
+    static_assert(!std::is_same_v<T, std::remove_cv_t<unexpect_t>>, "T must not be unexpect_t");
+    static_assert(!std::is_same_v<T, std::remove_cv_t<Unexpected<E>>>,
+                  "T must not be Unexpected<E>");
+    static_assert(!std::is_reference_v<E>, "E must not be a reference");
+
+    T* valptr() {
+        return std::addressof(this->m_val);
+    }
+
+    const T* valptr() const {
+        return std::addressof(this->m_val);
+    }
+
+    Unexpected<E>* errptr() {
+        return std::addressof(this->m_unexpect);
+    }
+
+    const Unexpected<E>* errptr() const {
+        return std::addressof(this->m_unexpect);
+    }
+
+    template <typename U = T>
+    constexpr U& val() {
+        return this->m_val;
+    }
+
+    template <typename U = T>
+    constexpr const U& val() const {
+        return this->m_val;
+    }
+
+    constexpr Unexpected<E>& err() {
+        return this->m_unexpect;
+    }
+
+    constexpr const Unexpected<E>& err() const {
+        return this->m_unexpect;
+    }
+
+    using impl_base = detail::expected_move_assign_base<T, E>;
+    using ctor_base = detail::expected_default_ctor_base<T, E>;
+};
+
+template <typename T, typename E, typename U, typename F>
+constexpr bool operator==(const Expected<T, E>& lhs, const Expected<U, F>& rhs) {
+    return (lhs.has_value() != rhs.has_value())
+               ? false
+               : (!lhs.has_value() ? lhs.error() == rhs.error() : *lhs == *rhs);
+}
+
+template <typename T, typename E, typename U, typename F>
+constexpr bool operator!=(const Expected<T, E>& lhs, const Expected<U, F>& rhs) {
+    return !operator==(lhs, rhs);
+}
+
+template <typename T, typename E, typename U>
+constexpr bool operator==(const Expected<T, E>& x, const U& v) {
+    return x.has_value() ? *x == v : false;
+}
+
+template <typename T, typename E, typename U>
+constexpr bool operator==(const U& v, const Expected<T, E>& x) {
+    return x.has_value() ? *x == v : false;
+}
+
+template <typename T, typename E, typename U>
+constexpr bool operator!=(const Expected<T, E>& x, const U& v) {
+    return !operator==(x, v);
+}
+
+template <typename T, typename E, typename U>
+constexpr bool operator!=(const U& v, const Expected<T, E>& x) {
+    return !operator==(v, x);
+}
+
+template <typename T, typename E>
+constexpr bool operator==(const Expected<T, E>& x, const Unexpected<E>& e) {
+    return x.has_value() ? false : x.error() == e.value();
+}
+
+template <typename T, typename E>
+constexpr bool operator==(const Unexpected<E>& e, const Expected<T, E>& x) {
+    return x.has_value() ? false : x.error() == e.value();
+}
+
+template <typename T, typename E>
+constexpr bool operator!=(const Expected<T, E>& x, const Unexpected<E>& e) {
+    return !operator==(x, e);
+}
+
+template <typename T, typename E>
+constexpr bool operator!=(const Unexpected<E>& e, const Expected<T, E>& x) {
+    return !operator==(e, x);
+}
+
+} // namespace Common

src/common/logging/backend.cpp

@@ -6,6 +6,7 @@
 #include <chrono>
 #include <climits>
 #include <exception>
+#include <stop_token>
 #include <thread>
 #include <vector>
 
@@ -186,6 +187,10 @@ public:
         initialization_in_progress_suppress_logging = false;
     }
 
+    static void Start() {
+        instance->StartBackendThread();
+    }
+
     Impl(const Impl&) = delete;
     Impl& operator=(const Impl&) = delete;
 
@@ -201,7 +206,7 @@ public:
     }
 
     void PushEntry(Class log_class, Level log_level, const char* filename, unsigned int line_num,
-                   const char* function, std::string message) {
+                   const char* function, std::string&& message) {
         if (!filter.CheckMessage(log_class, log_level))
             return;
         const Entry& entry =
@@ -211,40 +216,41 @@ public:
 
 private:
     Impl(const std::filesystem::path& file_backend_filename, const Filter& filter_)
-        : filter{filter_}, file_backend{file_backend_filename}, backend_thread{std::thread([this] {
-              Common::SetCurrentThreadName("yuzu:Log");
-              Entry entry;
-              const auto write_logs = [this, &entry]() {
-                  ForEachBackend([&entry](Backend& backend) { backend.Write(entry); });
-              };
-              while (true) {
-                  entry = message_queue.PopWait();
-                  if (entry.final_entry) {
-                      break;
-                  }
-                  write_logs();
-              }
-              // 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.
-              int max_logs_to_write = filter.IsDebug() ? INT_MAX : 100;
-              while (max_logs_to_write-- && message_queue.Pop(entry)) {
-                  write_logs();
-              }
-          })} {}
+        : filter{filter_}, file_backend{file_backend_filename} {}
 
     ~Impl() {
         StopBackendThread();
     }
 
+    void StartBackendThread() {
+        backend_thread = std::thread([this] {
+            Common::SetCurrentThreadName("yuzu:Log");
+            Entry entry;
+            const auto write_logs = [this, &entry]() {
+                ForEachBackend([&entry](Backend& backend) { backend.Write(entry); });
+            };
+            while (!stop.stop_requested()) {
+                entry = message_queue.PopWait(stop.get_token());
+                if (entry.filename != nullptr) {
+                    write_logs();
+                }
+            }
+            // 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.
+            int max_logs_to_write = filter.IsDebug() ? INT_MAX : 100;
+            while (max_logs_to_write-- && message_queue.Pop(entry)) {
+                write_logs();
+            }
+        });
+    }
+
     void StopBackendThread() {
-        Entry stop_entry{};
-        stop_entry.final_entry = true;
-        message_queue.Push(stop_entry);
+        stop.request_stop();
         backend_thread.join();
     }
 
     Entry CreateEntry(Class log_class, Level log_level, const char* filename, unsigned int line_nr,
-                      const char* function, std::string message) const {
+                      const char* function, std::string&& message) const {
         using std::chrono::duration_cast;
         using std::chrono::microseconds;
         using std::chrono::steady_clock;
@@ -257,7 +263,6 @@ private:
             .line_num = line_nr,
             .function = function,
             .message = std::move(message),
-            .final_entry = false,
         };
     }
 
@@ -278,8 +283,9 @@ private:
     ColorConsoleBackend color_console_backend{};
     FileBackend file_backend;
 
+    std::stop_source stop;
     std::thread backend_thread;
-    MPSCQueue<Entry> message_queue{};
+    MPSCQueue<Entry, true> message_queue{};
     std::chrono::steady_clock::time_point time_origin{std::chrono::steady_clock::now()};
 };
 } // namespace
@@ -288,6 +294,10 @@ void Initialize() {
     Impl::Initialize();
 }
 
+void Start() {
+    Impl::Start();
+}
+
 void DisableLoggingInTests() {
     initialization_in_progress_suppress_logging = true;
 }

src/common/logging/backend.h

@@ -14,6 +14,8 @@ class Filter;
 /// Initializes the logging system. This should be the first thing called in main.
 void Initialize();
 
+void Start();
+
 void DisableLoggingInTests();
 
 /**

src/common/logging/log_entry.h

@@ -22,7 +22,6 @@ struct Entry {
     unsigned int line_num = 0;
     std::string function;
     std::string message;
-    bool final_entry = false;
 };
 
 } // namespace Common::Log

src/common/math_util.h

@@ -48,8 +48,8 @@ struct Rectangle {
     }
 
     [[nodiscard]] Rectangle<T> Scale(const float s) const {
-        return Rectangle{left, top, static_cast<T>(left + GetWidth() * s),
-                         static_cast<T>(top + GetHeight() * s)};
+        return Rectangle{left, top, static_cast<T>(static_cast<float>(left + GetWidth()) * s),
+                         static_cast<T>(static_cast<float>(top + GetHeight()) * s)};
     }
 };
 

src/common/settings.cpp

@@ -47,7 +47,9 @@ void LogSettings() {
     log_setting("System_TimeZoneIndex", values.time_zone_index.GetValue());
     log_setting("Core_UseMultiCore", values.use_multi_core.GetValue());
     log_setting("CPU_Accuracy", values.cpu_accuracy.GetValue());
-    log_setting("Renderer_UseResolutionFactor", values.resolution_factor.GetValue());
+    log_setting("Renderer_UseResolutionScaling", values.resolution_setup.GetValue());
+    log_setting("Renderer_ScalingFilter", values.scaling_filter.GetValue());
+    log_setting("Renderer_AntiAliasing", values.anti_aliasing.GetValue());
     log_setting("Renderer_UseSpeedLimit", values.use_speed_limit.GetValue());
     log_setting("Renderer_SpeedLimit", values.speed_limit.GetValue());
     log_setting("Renderer_UseDiskShaderCache", values.use_disk_shader_cache.GetValue());
@@ -105,6 +107,55 @@ float Volume() {
     return values.volume.GetValue() / 100.0f;
 }
 
+void UpdateRescalingInfo() {
+    const auto setup = values.resolution_setup.GetValue();
+    auto& info = values.resolution_info;
+    info.downscale = false;
+    switch (setup) {
+    case ResolutionSetup::Res1_2X:
+        info.up_scale = 1;
+        info.down_shift = 1;
+        info.downscale = true;
+        break;
+    case ResolutionSetup::Res3_4X:
+        info.up_scale = 3;
+        info.down_shift = 2;
+        info.downscale = true;
+        break;
+    case ResolutionSetup::Res1X:
+        info.up_scale = 1;
+        info.down_shift = 0;
+        break;
+    case ResolutionSetup::Res2X:
+        info.up_scale = 2;
+        info.down_shift = 0;
+        break;
+    case ResolutionSetup::Res3X:
+        info.up_scale = 3;
+        info.down_shift = 0;
+        break;
+    case ResolutionSetup::Res4X:
+        info.up_scale = 4;
+        info.down_shift = 0;
+        break;
+    case ResolutionSetup::Res5X:
+        info.up_scale = 5;
+        info.down_shift = 0;
+        break;
+    case ResolutionSetup::Res6X:
+        info.up_scale = 6;
+        info.down_shift = 0;
+        break;
+    default:
+        UNREACHABLE();
+        info.up_scale = 1;
+        info.down_shift = 0;
+    }
+    info.up_factor = static_cast<f32>(info.up_scale) / (1U << info.down_shift);
+    info.down_factor = static_cast<f32>(1U << info.down_shift) / info.up_scale;
+    info.active = info.up_scale != 1 || info.down_shift != 0;
+}
+
 void RestoreGlobalState(bool is_powered_on) {
     // If a game is running, DO NOT restore the global settings state
     if (is_powered_on) {

src/common/settings.h

@@ -52,6 +52,56 @@ enum class NvdecEmulation : u32 {
     GPU = 2,
 };
 
+enum class ResolutionSetup : u32 {
+    Res1_2X = 0,
+    Res3_4X = 1,
+    Res1X = 2,
+    Res2X = 3,
+    Res3X = 4,
+    Res4X = 5,
+    Res5X = 6,
+    Res6X = 7,
+};
+
+enum class ScalingFilter : u32 {
+    NearestNeighbor = 0,
+    Bilinear = 1,
+    Bicubic = 2,
+    Gaussian = 3,
+    ScaleForce = 4,
+    Fsr = 5,
+    LastFilter = Fsr,
+};
+
+enum class AntiAliasing : u32 {
+    None = 0,
+    Fxaa = 1,
+    LastAA = Fxaa,
+};
+
+struct ResolutionScalingInfo {
+    u32 up_scale{1};
+    u32 down_shift{0};
+    f32 up_factor{1.0f};
+    f32 down_factor{1.0f};
+    bool active{};
+    bool downscale{};
+
+    s32 ScaleUp(s32 value) const {
+        if (value == 0) {
+            return 0;
+        }
+        return std::max((value * static_cast<s32>(up_scale)) >> static_cast<s32>(down_shift), 1);
+    }
+
+    u32 ScaleUp(u32 value) const {
+        if (value == 0U) {
+            return 0U;
+        }
+        return std::max((value * up_scale) >> down_shift, 1U);
+    }
+};
+
 /** The BasicSetting class is a simple resource manager. It defines a label and default value
  * alongside the actual value of the setting for simpler and less-error prone use with frontend
  * configurations. Setting a default value and label is required, though subclasses may deviate from
@@ -451,7 +501,10 @@ struct Values {
                                                          "disable_shader_loop_safety_checks"};
     Setting<int> vulkan_device{0, "vulkan_device"};
 
-    Setting<u16> resolution_factor{1, "resolution_factor"};
+    ResolutionScalingInfo resolution_info{};
+    Setting<ResolutionSetup> resolution_setup{ResolutionSetup::Res1X, "resolution_setup"};
+    Setting<ScalingFilter> scaling_filter{ScalingFilter::Bilinear, "scaling_filter"};
+    Setting<AntiAliasing> anti_aliasing{AntiAliasing::None, "anti_aliasing"};
     // *nix platforms may have issues with the borderless windowed fullscreen mode.
     // Default to exclusive fullscreen on these platforms for now.
     RangedSetting<FullscreenMode> fullscreen_mode{
@@ -462,7 +515,7 @@ struct Values {
 #endif
         FullscreenMode::Borderless, FullscreenMode::Exclusive, "fullscreen_mode"};
     RangedSetting<int> aspect_ratio{0, 0, 3, "aspect_ratio"};
-    RangedSetting<int> max_anisotropy{0, 0, 4, "max_anisotropy"};
+    RangedSetting<int> max_anisotropy{0, 0, 5, "max_anisotropy"};
     Setting<bool> use_speed_limit{true, "use_speed_limit"};
     RangedSetting<u16> speed_limit{100, 0, 9999, "speed_limit"};
     Setting<bool> use_disk_shader_cache{true, "use_disk_shader_cache"};
@@ -595,6 +648,8 @@ std::string GetTimeZoneString();
 
 void LogSettings();
 
+void UpdateRescalingInfo();
+
 // Restore the global state of all applicable settings in the Values struct
 void RestoreGlobalState(bool is_powered_on);
 

src/core/arm/dynarmic/arm_dynarmic_32.h

@@ -9,7 +9,6 @@
 
 #include <dynarmic/interface/A32/a32.h>
 #include <dynarmic/interface/A64/a64.h>
-#include <dynarmic/interface/exclusive_monitor.h>
 #include "common/common_types.h"
 #include "common/hash.h"
 #include "core/arm/arm_interface.h"

src/core/arm/dynarmic/arm_dynarmic_64.cpp

@@ -18,7 +18,6 @@
 #include "core/core_timing.h"
 #include "core/hardware_properties.h"
 #include "core/hle/kernel/k_process.h"
-#include "core/hle/kernel/k_scheduler.h"
 #include "core/hle/kernel/svc.h"
 #include "core/memory.h"
 

src/core/arm/dynarmic/arm_dynarmic_cp15.cpp

@@ -8,7 +8,6 @@
 #include "core/arm/dynarmic/arm_dynarmic_cp15.h"
 #include "core/core.h"
 #include "core/core_timing.h"
-#include "core/core_timing_util.h"
 
 using Callback = Dynarmic::A32::Coprocessor::Callback;
 using CallbackOrAccessOneWord = Dynarmic::A32::Coprocessor::CallbackOrAccessOneWord;

src/core/arm/dynarmic/arm_dynarmic_cp15.h

@@ -4,7 +4,6 @@
 
 #pragma once
 
-#include <memory>
 #include <optional>
 
 #include <dynarmic/interface/A32/coprocessor.h>

src/core/arm/dynarmic/arm_exclusive_monitor.cpp

@@ -2,8 +2,6 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <cinttypes>
-#include <memory>
 #include "core/arm/dynarmic/arm_exclusive_monitor.h"
 #include "core/memory.h"
 

src/core/arm/dynarmic/arm_exclusive_monitor.h

@@ -4,7 +4,6 @@
 
 #pragma once
 
-#include <memory>
 #include <unordered_map>
 
 #include <dynarmic/interface/exclusive_monitor.h>

src/core/core.cpp

@@ -19,20 +19,16 @@
 #include "core/cpu_manager.h"
 #include "core/device_memory.h"
 #include "core/file_sys/bis_factory.h"
-#include "core/file_sys/card_image.h"
 #include "core/file_sys/mode.h"
 #include "core/file_sys/patch_manager.h"
 #include "core/file_sys/registered_cache.h"
 #include "core/file_sys/romfs_factory.h"
 #include "core/file_sys/savedata_factory.h"
-#include "core/file_sys/sdmc_factory.h"
 #include "core/file_sys/vfs_concat.h"
 #include "core/file_sys/vfs_real.h"
 #include "core/hardware_interrupt_manager.h"
-#include "core/hle/kernel/k_client_port.h"
 #include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_scheduler.h"
-#include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/physical_core.h"
 #include "core/hle/service/am/applets/applets.h"
@@ -328,8 +324,8 @@ struct System::Impl {
         time_manager.Shutdown();
         core_timing.Shutdown();
         app_loader.reset();
-        perf_stats.reset();
         gpu_core.reset();
+        perf_stats.reset();
         kernel.Shutdown();
         memory.Reset();
         applet_manager.ClearAll();
@@ -353,7 +349,7 @@ struct System::Impl {
         }
 
         Service::Glue::ApplicationLaunchProperty launch{};
-        launch.title_id = process.GetTitleID();
+        launch.title_id = process.GetProgramID();
 
         FileSys::PatchManager pm{launch.title_id, fs_controller, *content_provider};
         launch.version = pm.GetGameVersion().value_or(0);
@@ -643,6 +639,10 @@ const Core::SpeedLimiter& System::SpeedLimiter() const {
     return impl->speed_limiter;
 }
 
+u64 System::GetCurrentProcessProgramID() const {
+    return impl->kernel.CurrentProcess()->GetProgramID();
+}
+
 Loader::ResultStatus System::GetGameName(std::string& out) const {
     return impl->GetGameName(out);
 }

src/core/core.h

@@ -297,6 +297,8 @@ public:
     /// Provides a constant reference to the speed limiter
     [[nodiscard]] const Core::SpeedLimiter& SpeedLimiter() const;
 
+    [[nodiscard]] u64 GetCurrentProcessProgramID() const;
+
     /// Gets the name of the current game
     [[nodiscard]] Loader::ResultStatus GetGameName(std::string& out) const;
 

src/core/core_timing.h

@@ -8,7 +8,6 @@
 #include <chrono>
 #include <functional>
 #include <memory>
-#include <mutex>
 #include <optional>
 #include <string>
 #include <thread>

src/core/cpu_manager.cpp

@@ -6,7 +6,6 @@
 #include "common/microprofile.h"
 #include "common/scope_exit.h"
 #include "common/thread.h"
-#include "core/arm/exclusive_monitor.h"
 #include "core/core.h"
 #include "core/core_timing.h"
 #include "core/cpu_manager.h"

src/core/crypto/ctr_encryption_layer.cpp

@@ -4,7 +4,6 @@
 
 #include <algorithm>
 #include <cstring>
-#include "common/assert.h"
 #include "core/crypto/ctr_encryption_layer.h"
 
 namespace Core::Crypto {

src/core/crypto/key_manager.cpp

@@ -10,14 +10,12 @@
 #include <locale>
 #include <map>
 #include <sstream>
-#include <string_view>
 #include <tuple>
 #include <vector>
 #include <mbedtls/bignum.h>
 #include <mbedtls/cipher.h>
 #include <mbedtls/cmac.h>
 #include <mbedtls/sha256.h>
-#include "common/common_funcs.h"
 #include "common/fs/file.h"
 #include "common/fs/fs.h"
 #include "common/fs/path_util.h"
@@ -30,7 +28,6 @@
 #include "core/crypto/partition_data_manager.h"
 #include "core/file_sys/content_archive.h"
 #include "core/file_sys/nca_metadata.h"
-#include "core/file_sys/partition_filesystem.h"
 #include "core/file_sys/registered_cache.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/loader/loader.h"

src/core/crypto/key_manager.h

@@ -15,7 +15,6 @@
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "core/crypto/partition_data_manager.h"
-#include "core/file_sys/vfs_types.h"
 
 namespace Common::FS {
 class IOFile;

src/core/crypto/partition_data_manager.cpp

@@ -12,7 +12,6 @@
 #include <cctype>
 #include <cstring>
 #include <mbedtls/sha256.h>
-#include "common/assert.h"
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "common/hex_util.h"

src/core/crypto/xts_encryption_layer.cpp

@@ -4,7 +4,6 @@
 
 #include <algorithm>
 #include <cstring>
-#include "common/assert.h"
 #include "core/crypto/xts_encryption_layer.h"
 
 namespace Core::Crypto {

src/core/file_sys/card_image.cpp

@@ -14,7 +14,6 @@
 #include "core/file_sys/nca_metadata.h"
 #include "core/file_sys/partition_filesystem.h"
 #include "core/file_sys/submission_package.h"
-#include "core/file_sys/vfs_concat.h"
 #include "core/file_sys/vfs_offset.h"
 #include "core/file_sys/vfs_vector.h"
 #include "core/loader/loader.h"

src/core/file_sys/control_metadata.h

@@ -5,7 +5,6 @@
 #pragma once
 
 #include <array>
-#include <memory>
 #include <string>
 #include "common/common_funcs.h"
 #include "common/common_types.h"

src/core/file_sys/directory.h

@@ -6,7 +6,6 @@
 
 #include <cstddef>
 #include <iterator>
-#include <string_view>
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 

src/core/file_sys/nca_metadata.h

@@ -5,7 +5,6 @@
 #pragma once
 
 #include <array>
-#include <memory>
 #include <vector>
 #include "common/common_funcs.h"
 #include "common/common_types.h"

src/core/file_sys/program_metadata.cpp

@@ -53,13 +53,16 @@ Loader::ResultStatus ProgramMetadata::Load(VirtualFile file) {
 }
 
 /*static*/ ProgramMetadata ProgramMetadata::GetDefault() {
+    // Allow use of cores 0~3 and thread priorities 1~63.
+    constexpr u32 default_thread_info_capability = 0x30007F7;
+
     ProgramMetadata result;
 
     result.LoadManual(
         true /*is_64_bit*/, FileSys::ProgramAddressSpaceType::Is39Bit /*address_space*/,
         0x2c /*main_thread_prio*/, 0 /*main_thread_core*/, 0x00100000 /*main_thread_stack_size*/,
         0 /*title_id*/, 0xFFFFFFFFFFFFFFFF /*filesystem_permissions*/,
-        0x1FE00000 /*system_resource_size*/, {} /*capabilities*/);
+        0x1FE00000 /*system_resource_size*/, {default_thread_info_capability} /*capabilities*/);
 
     return result;
 }

src/core/file_sys/romfs_factory.cpp

@@ -6,7 +6,6 @@
 #include "common/assert.h"
 #include "common/common_types.h"
 #include "common/logging/log.h"
-#include "core/file_sys/card_image.h"
 #include "core/file_sys/common_funcs.h"
 #include "core/file_sys/content_archive.h"
 #include "core/file_sys/nca_metadata.h"
@@ -39,13 +38,12 @@ void RomFSFactory::SetPackedUpdate(VirtualFile update_raw_file) {
 
 ResultVal<VirtualFile> RomFSFactory::OpenCurrentProcess(u64 current_process_title_id) const {
     if (!updatable) {
-        return MakeResult<VirtualFile>(file);
+        return file;
     }
 
     const PatchManager patch_manager{current_process_title_id, filesystem_controller,
                                      content_provider};
-    return MakeResult<VirtualFile>(
-        patch_manager.PatchRomFS(file, ivfc_offset, ContentRecordType::Program, update_raw));
+    return patch_manager.PatchRomFS(file, ivfc_offset, ContentRecordType::Program, update_raw);
 }
 
 ResultVal<VirtualFile> RomFSFactory::OpenPatchedRomFS(u64 title_id, ContentRecordType type) const {
@@ -58,8 +56,7 @@ ResultVal<VirtualFile> RomFSFactory::OpenPatchedRomFS(u64 title_id, ContentRecor
 
     const PatchManager patch_manager{title_id, filesystem_controller, content_provider};
 
-    return MakeResult<VirtualFile>(
-        patch_manager.PatchRomFS(nca->GetRomFS(), nca->GetBaseIVFCOffset(), type));
+    return patch_manager.PatchRomFS(nca->GetRomFS(), nca->GetBaseIVFCOffset(), type);
 }
 
 ResultVal<VirtualFile> RomFSFactory::OpenPatchedRomFSWithProgramIndex(
@@ -83,7 +80,7 @@ ResultVal<VirtualFile> RomFSFactory::Open(u64 title_id, StorageId storage,
         return ResultUnknown;
     }
 
-    return MakeResult<VirtualFile>(romfs);
+    return romfs;
 }
 
 std::shared_ptr<NCA> RomFSFactory::GetEntry(u64 title_id, StorageId storage,

src/core/file_sys/romfs_factory.h

@@ -5,8 +5,9 @@
 #pragma once
 
 #include <memory>
+
 #include "common/common_types.h"
-#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs_types.h"
 #include "core/hle/result.h"
 
 namespace Loader {

src/core/file_sys/savedata_factory.cpp

@@ -9,7 +9,6 @@
 #include "core/core.h"
 #include "core/file_sys/savedata_factory.h"
 #include "core/file_sys/vfs.h"
-#include "core/hle/kernel/k_process.h"
 
 namespace FileSys {
 
@@ -94,7 +93,7 @@ ResultVal<VirtualDir> SaveDataFactory::Create(SaveDataSpaceId space,
         return ResultUnknown;
     }
 
-    return MakeResult<VirtualDir>(std::move(out));
+    return out;
 }
 
 ResultVal<VirtualDir> SaveDataFactory::Open(SaveDataSpaceId space,
@@ -115,7 +114,7 @@ ResultVal<VirtualDir> SaveDataFactory::Open(SaveDataSpaceId space,
         return ResultUnknown;
     }
 
-    return MakeResult<VirtualDir>(std::move(out));
+    return out;
 }
 
 VirtualDir SaveDataFactory::GetSaveDataSpaceDirectory(SaveDataSpaceId space) const {
@@ -143,7 +142,7 @@ std::string SaveDataFactory::GetFullPath(Core::System& system, SaveDataSpaceId s
     // be interpreted as the title id of the current process.
     if (type == SaveDataType::SaveData || type == SaveDataType::DeviceSaveData) {
         if (title_id == 0) {
-            title_id = system.CurrentProcess()->GetTitleID();
+            title_id = system.GetCurrentProcessProgramID();
         }
     }
 

src/core/file_sys/savedata_factory.h

@@ -8,7 +8,6 @@
 #include <string>
 #include "common/common_funcs.h"
 #include "common/common_types.h"
-#include "common/swap.h"
 #include "core/file_sys/vfs.h"
 #include "core/hle/result.h"
 

src/core/file_sys/sdmc_factory.cpp

@@ -25,7 +25,7 @@ SDMCFactory::SDMCFactory(VirtualDir sd_dir_, VirtualDir sd_mod_dir_)
 SDMCFactory::~SDMCFactory() = default;
 
 ResultVal<VirtualDir> SDMCFactory::Open() const {
-    return MakeResult<VirtualDir>(sd_dir);
+    return sd_dir;
 }
 
 VirtualDir SDMCFactory::GetSDMCModificationLoadRoot(u64 title_id) const {

src/core/file_sys/submission_package.cpp

@@ -4,7 +4,6 @@
 
 #include <algorithm>
 #include <cstring>
-#include <string_view>
 
 #include <fmt/ostream.h>
 

src/core/file_sys/system_archive/time_zone_binary.h

@@ -4,7 +4,6 @@
 
 #pragma once
 
-#include <string>
 #include "core/file_sys/vfs_types.h"
 
 namespace FileSys::SystemArchive {

src/core/file_sys/vfs.h

@@ -9,7 +9,6 @@
 #include <memory>
 #include <optional>
 #include <string>
-#include <string_view>
 #include <type_traits>
 #include <vector>
 

src/core/file_sys/vfs_concat.h

@@ -6,7 +6,6 @@
 
 #include <map>
 #include <memory>
-#include <string_view>
 #include "core/file_sys/vfs.h"
 
 namespace FileSys {

src/core/file_sys/vfs_offset.h

@@ -5,7 +5,6 @@
 #pragma once
 
 #include <memory>
-#include <string_view>
 
 #include "core/file_sys/vfs.h"
 

src/core/frontend/applets/general_frontend.h

@@ -5,7 +5,6 @@
 #pragma once
 
 #include <functional>
-#include <optional>
 #include "common/common_types.h"
 
 namespace Core::Frontend {

src/core/frontend/applets/software_keyboard.cpp

@@ -16,7 +16,8 @@ DefaultSoftwareKeyboardApplet::~DefaultSoftwareKeyboardApplet() = default;
 
 void DefaultSoftwareKeyboardApplet::InitializeKeyboard(
     bool is_inline, KeyboardInitializeParameters initialize_parameters,
-    std::function<void(Service::AM::Applets::SwkbdResult, std::u16string)> submit_normal_callback_,
+    std::function<void(Service::AM::Applets::SwkbdResult, std::u16string, bool)>
+        submit_normal_callback_,
     std::function<void(Service::AM::Applets::SwkbdReplyType, std::u16string, s32)>
         submit_inline_callback_) {
     if (is_inline) {
@@ -128,7 +129,7 @@ void DefaultSoftwareKeyboardApplet::ExitKeyboard() const {
 }
 
 void DefaultSoftwareKeyboardApplet::SubmitNormalText(std::u16string text) const {
-    submit_normal_callback(Service::AM::Applets::SwkbdResult::Ok, text);
+    submit_normal_callback(Service::AM::Applets::SwkbdResult::Ok, text, true);
 }
 
 void DefaultSoftwareKeyboardApplet::SubmitInlineText(std::u16string_view text) const {

src/core/frontend/applets/software_keyboard.h

@@ -5,7 +5,6 @@
 #pragma once
 
 #include <functional>
-#include <thread>
 
 #include "common/common_types.h"
 
@@ -58,7 +57,7 @@ public:
 
     virtual void InitializeKeyboard(
         bool is_inline, KeyboardInitializeParameters initialize_parameters,
-        std::function<void(Service::AM::Applets::SwkbdResult, std::u16string)>
+        std::function<void(Service::AM::Applets::SwkbdResult, std::u16string, bool)>
             submit_normal_callback_,
         std::function<void(Service::AM::Applets::SwkbdReplyType, std::u16string, s32)>
             submit_inline_callback_) = 0;
@@ -83,7 +82,7 @@ public:
 
     void InitializeKeyboard(
         bool is_inline, KeyboardInitializeParameters initialize_parameters,
-        std::function<void(Service::AM::Applets::SwkbdResult, std::u16string)>
+        std::function<void(Service::AM::Applets::SwkbdResult, std::u16string, bool)>
             submit_normal_callback_,
         std::function<void(Service::AM::Applets::SwkbdReplyType, std::u16string, s32)>
             submit_inline_callback_) override;
@@ -107,7 +106,7 @@ private:
 
     KeyboardInitializeParameters parameters;
 
-    mutable std::function<void(Service::AM::Applets::SwkbdResult, std::u16string)>
+    mutable std::function<void(Service::AM::Applets::SwkbdResult, std::u16string, bool)>
         submit_normal_callback;
     mutable std::function<void(Service::AM::Applets::SwkbdReplyType, std::u16string, s32)>
         submit_inline_callback;

src/core/frontend/applets/web_browser.h

@@ -5,7 +5,6 @@
 #pragma once
 
 #include <functional>
-#include <string_view>
 
 #include "core/hle/service/am/applets/applet_web_browser_types.h"
 

src/core/frontend/emu_window.cpp

@@ -2,7 +2,6 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <cmath>
 #include <mutex>
 #include "common/settings.h"
 #include "core/frontend/emu_window.h"

src/core/frontend/emu_window.h

@@ -5,7 +5,6 @@
 #pragma once
 
 #include <memory>
-#include <tuple>
 #include <utility>
 #include "common/common_types.h"
 #include "core/frontend/framebuffer_layout.h"

src/core/frontend/framebuffer_layout.cpp

@@ -44,16 +44,13 @@ FramebufferLayout DefaultFrameLayout(u32 width, u32 height) {
     return res;
 }
 
-FramebufferLayout FrameLayoutFromResolutionScale(u32 res_scale) {
-    u32 width, height;
+FramebufferLayout FrameLayoutFromResolutionScale(f32 res_scale) {
+    const bool is_docked = Settings::values.use_docked_mode.GetValue();
+    const u32 screen_width = is_docked ? ScreenDocked::Width : ScreenUndocked::Width;
+    const u32 screen_height = is_docked ? ScreenDocked::Height : ScreenUndocked::Height;
 
-    if (Settings::values.use_docked_mode.GetValue()) {
-        width = ScreenDocked::Width * res_scale;
-        height = ScreenDocked::Height * res_scale;
-    } else {
-        width = ScreenUndocked::Width * res_scale;
-        height = ScreenUndocked::Height * res_scale;
-    }
+    const u32 width = static_cast<u32>(static_cast<f32>(screen_width) * res_scale);
+    const u32 height = static_cast<u32>(static_cast<f32>(screen_height) * res_scale);
 
     return DefaultFrameLayout(width, height);
 }

src/core/frontend/framebuffer_layout.h

@@ -60,7 +60,7 @@ FramebufferLayout DefaultFrameLayout(u32 width, u32 height);
  * Convenience method to get frame layout by resolution scale
  * @param res_scale resolution scale factor
  */
-FramebufferLayout FrameLayoutFromResolutionScale(u32 res_scale);
+FramebufferLayout FrameLayoutFromResolutionScale(f32 res_scale);
 
 /**
  * Convenience method to determine emulation aspect ratio

src/core/hle/kernel/board/nintendo/nx/secure_monitor.h

@@ -4,8 +4,6 @@
 
 #pragma once
 
-#include "common/common_types.h"
-
 namespace Kernel::Board::Nintendo::Nx::Smc {
 
 enum MemorySize {

src/core/hle/kernel/code_set.h

@@ -5,7 +5,6 @@
 #pragma once
 
 #include <cstddef>
-#include <vector>
 
 #include "common/common_types.h"
 #include "core/hle/kernel/physical_memory.h"

src/core/hle/kernel/hle_ipc.cpp

@@ -5,7 +5,6 @@
 #include <algorithm>
 #include <array>
 #include <sstream>
-#include <utility>
 
 #include <boost/range/algorithm_ext/erase.hpp>
 
@@ -19,14 +18,9 @@
 #include "core/hle/kernel/k_handle_table.h"
 #include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_readable_event.h"
-#include "core/hle/kernel/k_scheduler.h"
-#include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
 #include "core/hle/kernel/k_server_session.h"
 #include "core/hle/kernel/k_thread.h"
-#include "core/hle/kernel/k_writable_event.h"
 #include "core/hle/kernel/kernel.h"
-#include "core/hle/kernel/svc_results.h"
-#include "core/hle/kernel/time_manager.h"
 #include "core/memory.h"
 
 namespace Kernel {

src/core/hle/kernel/init/init_slab_setup.cpp

@@ -20,8 +20,6 @@
 #include "core/hle/kernel/k_system_control.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/k_transfer_memory.h"
-#include "core/hle/kernel/memory_types.h"
-#include "core/memory.h"
 
 namespace Kernel::Init {
 

src/core/hle/kernel/k_auto_object_container.h

@@ -4,14 +4,9 @@
 
 #pragma once
 
-#include <atomic>
-
 #include <boost/intrusive/rbtree.hpp>
 
-#include "common/assert.h"
 #include "common/common_funcs.h"
-#include "common/common_types.h"
-#include "common/intrusive_red_black_tree.h"
 #include "core/hle/kernel/k_auto_object.h"
 #include "core/hle/kernel/k_light_lock.h"
 

src/core/hle/kernel/k_class_token.h

@@ -6,7 +6,6 @@
 
 #include <atomic>
 
-#include "common/assert.h"
 #include "common/bit_util.h"
 #include "common/common_types.h"
 

src/core/hle/kernel/k_client_session.cpp

@@ -7,7 +7,6 @@
 #include "core/hle/kernel/k_server_session.h"
 #include "core/hle/kernel/k_session.h"
 #include "core/hle/kernel/k_thread.h"
-#include "core/hle/kernel/svc_results.h"
 #include "core/hle/result.h"
 
 namespace Kernel {

src/core/hle/kernel/k_client_session.h

@@ -4,11 +4,9 @@
 
 #pragma once
 
-#include <memory>
 #include <string>
 
 #include "core/hle/kernel/k_auto_object.h"
-#include "core/hle/kernel/k_synchronization_object.h"
 #include "core/hle/kernel/slab_helpers.h"
 #include "core/hle/result.h"
 

src/core/hle/kernel/k_condition_variable.cpp

@@ -2,8 +2,6 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <vector>
-
 #include "core/arm/exclusive_monitor.h"
 #include "core/core.h"
 #include "core/hle/kernel/k_condition_variable.h"

src/core/hle/kernel/k_handle_table.h

@@ -8,7 +8,6 @@
 
 #include "common/assert.h"
 #include "common/bit_field.h"
-#include "common/bit_util.h"
 #include "common/common_types.h"
 #include "core/hle/kernel/k_auto_object.h"
 #include "core/hle/kernel/k_spin_lock.h"

src/core/hle/kernel/k_light_condition_variable.h

@@ -10,7 +10,6 @@
 #include "common/common_types.h"
 #include "core/hle/kernel/k_scheduler.h"
 #include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
-#include "core/hle/kernel/k_thread_queue.h"
 #include "core/hle/kernel/time_manager.h"
 
 namespace Kernel {

src/core/hle/kernel/k_light_lock.h

@@ -6,7 +6,6 @@
 
 #include <atomic>
 
-#include "common/common_types.h"
 #include "core/hle/kernel/k_scoped_lock.h"
 
 namespace Kernel {

src/core/hle/kernel/k_memory_manager.h

@@ -8,7 +8,6 @@
 #include <mutex>
 #include <tuple>
 
-#include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "core/hle/kernel/k_page_heap.h"
 #include "core/hle/result.h"

src/core/hle/kernel/k_page_heap.cpp

@@ -4,7 +4,6 @@
 
 #include "core/core.h"
 #include "core/hle/kernel/k_page_heap.h"
-#include "core/memory.h"
 
 namespace Kernel {
 

src/core/hle/kernel/k_page_heap.h

@@ -5,12 +5,9 @@
 #pragma once
 
 #include <array>
-#include <bit>
 #include <vector>
 
 #include "common/alignment.h"
-#include "common/assert.h"
-#include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "core/hle/kernel/k_page_bitmap.h"
 #include "core/hle/kernel/memory_types.h"

src/core/hle/kernel/k_page_table.cpp

@@ -859,7 +859,7 @@ ResultVal<VAddr> KPageTable::SetHeapSize(std::size_t size) {
         current_heap_addr = heap_region_start + size;
     }
 
-    return MakeResult<VAddr>(heap_region_start);
+    return heap_region_start;
 }
 
 ResultVal<VAddr> KPageTable::AllocateAndMapMemory(std::size_t needed_num_pages, std::size_t align,
@@ -893,7 +893,7 @@ ResultVal<VAddr> KPageTable::AllocateAndMapMemory(std::size_t needed_num_pages,
 
     block_manager->Update(addr, needed_num_pages, state, perm);
 
-    return MakeResult<VAddr>(addr);
+    return addr;
 }
 
 ResultCode KPageTable::LockForDeviceAddressSpace(VAddr addr, std::size_t size) {

src/core/hle/kernel/k_port.h

@@ -4,7 +4,6 @@
 
 #pragma once
 
-#include <memory>
 #include <string>
 
 #include "common/common_types.h"

src/core/hle/kernel/k_process.h

@@ -8,7 +8,6 @@
 #include <cstddef>
 #include <list>
 #include <string>
-#include <unordered_map>
 #include <vector>
 #include "common/common_types.h"
 #include "core/hle/kernel/k_address_arbiter.h"
@@ -155,8 +154,8 @@ public:
         return process_id;
     }
 
-    /// Gets the title ID corresponding to this process.
-    u64 GetTitleID() const {
+    /// Gets the program ID corresponding to this process.
+    u64 GetProgramID() const {
         return program_id;
     }
 

src/core/hle/kernel/k_scheduler_lock.h

@@ -5,7 +5,6 @@
 #pragma once
 
 #include "common/assert.h"
-#include "core/hardware_properties.h"
 #include "core/hle/kernel/k_spin_lock.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/kernel.h"

src/core/hle/kernel/k_scoped_lock.h

@@ -7,7 +7,8 @@
 
 #pragma once
 
-#include "common/common_types.h"
+#include <concepts>
+#include <type_traits>
 
 namespace Kernel {
 

src/core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h

@@ -8,7 +8,6 @@
 #pragma once
 
 #include "common/common_types.h"
-#include "core/hle/kernel/k_handle_table.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/time_manager.h"

src/core/hle/kernel/k_server_port.cpp

@@ -10,7 +10,6 @@
 #include "core/hle/kernel/k_server_port.h"
 #include "core/hle/kernel/k_server_session.h"
 #include "core/hle/kernel/k_thread.h"
-#include "core/hle/kernel/svc_results.h"
 
 namespace Kernel {
 

src/core/hle/kernel/k_server_port.h

@@ -7,14 +7,11 @@
 #include <memory>
 #include <string>
 #include <utility>
-#include <vector>
 
 #include <boost/intrusive/list.hpp>
 
-#include "common/common_types.h"
 #include "core/hle/kernel/k_server_session.h"
 #include "core/hle/kernel/k_synchronization_object.h"
-#include "core/hle/result.h"
 
 namespace Kernel {
 

src/core/hle/kernel/k_server_session.cpp

@@ -14,7 +14,6 @@
 #include "core/hle/kernel/hle_ipc.h"
 #include "core/hle/kernel/k_client_port.h"
 #include "core/hle/kernel/k_handle_table.h"
-#include "core/hle/kernel/k_port.h"
 #include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_scheduler.h"
 #include "core/hle/kernel/k_server_port.h"
@@ -22,6 +21,7 @@
 #include "core/hle/kernel/k_session.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/service_thread.h"
 #include "core/memory.h"
 
 namespace Kernel {

src/core/hle/kernel/k_server_session.h

@@ -7,14 +7,11 @@
 #include <memory>
 #include <string>
 #include <utility>
-#include <vector>
 
 #include <boost/intrusive/list.hpp>
 
-#include "common/threadsafe_queue.h"
 #include "core/hle/kernel/hle_ipc.h"
 #include "core/hle/kernel/k_synchronization_object.h"
-#include "core/hle/kernel/service_thread.h"
 #include "core/hle/result.h"
 
 namespace Core::Memory {

src/core/hle/kernel/k_session.cpp

@@ -2,7 +2,6 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include "common/assert.h"
 #include "core/hle/kernel/k_client_port.h"
 #include "core/hle/kernel/k_client_session.h"
 #include "core/hle/kernel/k_scoped_resource_reservation.h"

src/core/hle/kernel/k_shared_memory.h

@@ -4,7 +4,6 @@
 
 #pragma once
 
-#include <memory>
 #include <string>
 
 #include "common/common_types.h"

src/core/hle/kernel/k_shared_memory_info.h

@@ -4,12 +4,8 @@
 
 #pragma once
 
-#include <memory>
-#include <string>
-
 #include <boost/intrusive/list.hpp>
 
-#include "common/assert.h"
 #include "core/hle/kernel/slab_helpers.h"
 
 namespace Kernel {

src/core/hle/kernel/k_thread.cpp

@@ -13,8 +13,6 @@
 #include "common/common_types.h"
 #include "common/fiber.h"
 #include "common/logging/log.h"
-#include "common/scope_exit.h"
-#include "common/thread_queue_list.h"
 #include "core/core.h"
 #include "core/cpu_manager.h"
 #include "core/hardware_properties.h"
@@ -31,11 +29,9 @@
 #include "core/hle/kernel/svc_results.h"
 #include "core/hle/kernel/time_manager.h"
 #include "core/hle/result.h"
-#include "core/memory.h"
 
 #ifdef ARCHITECTURE_x86_64
 #include "core/arm/dynarmic/arm_dynarmic_32.h"
-#include "core/arm/dynarmic/arm_dynarmic_64.h"
 #endif
 
 namespace {

src/core/hle/kernel/k_trace.h

@@ -4,8 +4,6 @@
 
 #pragma once
 
-#include "common/common_funcs.h"
-
 namespace Kernel {
 
 using namespace Common::Literals;

src/core/hle/kernel/k_transfer_memory.h

@@ -4,8 +4,6 @@
 
 #pragma once
 
-#include <memory>
-
 #include "core/hle/kernel/slab_helpers.h"
 #include "core/hle/kernel/svc_types.h"
 #include "core/hle/result.h"

src/core/hle/kernel/kernel.cpp

@@ -39,9 +39,7 @@
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/physical_core.h"
 #include "core/hle/kernel/service_thread.h"
-#include "core/hle/kernel/svc_results.h"
 #include "core/hle/kernel/time_manager.h"
-#include "core/hle/lock.h"
 #include "core/hle/result.h"
 #include "core/hle/service/sm/sm.h"
 #include "core/memory.h"

src/core/hle/kernel/physical_core.h

@@ -4,7 +4,6 @@
 
 #pragma once
 
-#include <array>
 #include <cstddef>
 #include <memory>
 

src/core/hle/kernel/service_thread.cpp

@@ -9,15 +9,11 @@
 #include <vector>
 #include <queue>
 
-#include "common/assert.h"
 #include "common/scope_exit.h"
 #include "common/thread.h"
-#include "core/core.h"
 #include "core/hle/kernel/k_session.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/service_thread.h"
-#include "core/hle/lock.h"
-#include "video_core/renderer_base.h"
 
 namespace Kernel {
 

src/core/hle/kernel/slab_helpers.h

@@ -4,16 +4,8 @@
 
 #pragma once
 
-#include <atomic>
-
-#include "common/assert.h"
-#include "common/common_funcs.h"
-#include "common/common_types.h"
-#include "common/intrusive_red_black_tree.h"
 #include "core/hle/kernel/k_auto_object.h"
 #include "core/hle/kernel/k_auto_object_container.h"
-#include "core/hle/kernel/k_light_lock.h"
-#include "core/hle/kernel/k_slab_heap.h"
 #include "core/hle/kernel/kernel.h"
 
 namespace Kernel {

src/core/hle/kernel/svc.cpp

@@ -13,18 +13,11 @@
 #include "common/common_funcs.h"
 #include "common/fiber.h"
 #include "common/logging/log.h"
-#include "common/microprofile.h"
 #include "common/scope_exit.h"
-#include "common/string_util.h"
-#include "core/arm/exclusive_monitor.h"
 #include "core/core.h"
 #include "core/core_timing.h"
-#include "core/core_timing_util.h"
-#include "core/cpu_manager.h"
-#include "core/hle/kernel/k_address_arbiter.h"
 #include "core/hle/kernel/k_client_port.h"
 #include "core/hle/kernel/k_client_session.h"
-#include "core/hle/kernel/k_condition_variable.h"
 #include "core/hle/kernel/k_event.h"
 #include "core/hle/kernel/k_handle_table.h"
 #include "core/hle/kernel/k_memory_block.h"
@@ -35,7 +28,6 @@
 #include "core/hle/kernel/k_resource_limit.h"
 #include "core/hle/kernel/k_scheduler.h"
 #include "core/hle/kernel/k_scoped_resource_reservation.h"
-#include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
 #include "core/hle/kernel/k_shared_memory.h"
 #include "core/hle/kernel/k_synchronization_object.h"
 #include "core/hle/kernel/k_thread.h"
@@ -47,10 +39,8 @@
 #include "core/hle/kernel/svc_results.h"
 #include "core/hle/kernel/svc_types.h"
 #include "core/hle/kernel/svc_wrap.h"
-#include "core/hle/kernel/time_manager.h"
 #include "core/hle/lock.h"
 #include "core/hle/result.h"
-#include "core/hle/service/service.h"
 #include "core/memory.h"
 #include "core/reporter.h"
 
@@ -409,7 +399,7 @@ static ResultCode GetProcessId32(Core::System& system, u32* out_process_id_low,
 
 /// Wait for the given handles to synchronize, timeout after the specified nanoseconds
 static ResultCode WaitSynchronization(Core::System& system, s32* index, VAddr handles_address,
-                                      u64 num_handles, s64 nano_seconds) {
+                                      s32 num_handles, s64 nano_seconds) {
     LOG_TRACE(Kernel_SVC, "called handles_address=0x{:X}, num_handles={}, nano_seconds={}",
               handles_address, num_handles, nano_seconds);
 
@@ -434,7 +424,7 @@ static ResultCode WaitSynchronization(Core::System& system, s32* index, VAddr ha
 
     // Ensure handles are closed when we're done.
     SCOPE_EXIT({
-        for (u64 i = 0; i < num_handles; ++i) {
+        for (s32 i = 0; i < num_handles; ++i) {
             kernel.UnregisterInUseObject(objs[i]);
             objs[i]->Close();
         }
@@ -778,7 +768,7 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, Handle
             return ResultSuccess;
 
         case GetInfoType::TitleId:
-            *result = process->GetTitleID();
+            *result = process->GetProgramID();
             return ResultSuccess;
 
         case GetInfoType::UserExceptionContextAddr:

src/core/hle/kernel/svc_wrap.h

@@ -248,10 +248,10 @@ void SvcWrap64(Core::System& system) {
 }
 
 // Used by WaitSynchronization
-template <ResultCode func(Core::System&, s32*, u64, u64, s64)>
+template <ResultCode func(Core::System&, s32*, u64, s32, s64)>
 void SvcWrap64(Core::System& system) {
     s32 param_1 = 0;
-    const u32 retval = func(system, &param_1, Param(system, 1), static_cast<u32>(Param(system, 2)),
+    const u32 retval = func(system, &param_1, Param(system, 1), static_cast<s32>(Param(system, 2)),
                             static_cast<s64>(Param(system, 3)))
                            .raw;
 

src/core/hle/kernel/time_manager.cpp

@@ -5,10 +5,7 @@
 #include "common/assert.h"
 #include "core/core.h"
 #include "core/core_timing.h"
-#include "core/core_timing_util.h"
-#include "core/hle/kernel/k_scheduler.h"
 #include "core/hle/kernel/k_thread.h"
-#include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/time_manager.h"
 
 namespace Kernel {

src/core/hle/kernel/time_manager.h

@@ -6,7 +6,6 @@
 
 #include <memory>
 #include <mutex>
-#include <unordered_map>
 
 namespace Core {
 class System;

src/core/hle/result.h

@@ -4,11 +4,10 @@
 
 #pragma once
 
-#include <new>
-#include <utility>
 #include "common/assert.h"
 #include "common/bit_field.h"
 #include "common/common_types.h"
+#include "common/expected.h"
 
 // All the constants in this file come from http://switchbrew.org/index.php?title=Error_codes
 
@@ -155,204 +154,131 @@ constexpr ResultCode ResultSuccess(0);
 constexpr ResultCode ResultUnknown(UINT32_MAX);
 
 /**
- * This is an optional value type. It holds a `ResultCode` and, if that code is a success code,
- * also holds a result of type `T`. If the code is an error code then trying to access the inner
- * value fails, thus ensuring that the ResultCode of functions is always checked properly before
- * their return value is used.  It is similar in concept to the `std::optional` type
- * (http://en.cppreference.com/w/cpp/experimental/optional) originally proposed for inclusion in
- * C++14, or the `Result` type in Rust (http://doc.rust-lang.org/std/result/index.html).
+ * This is an optional value type. It holds a `ResultCode` and, if that code is ResultSuccess, it
+ * also holds a result of type `T`. If the code is an error code (not ResultSuccess), then trying
+ * to access the inner value with operator* is undefined behavior and will assert with Unwrap().
+ * Users of this class must be cognizant to check the status of the ResultVal with operator bool(),
+ * Code(), Succeeded() or Failed() prior to accessing the inner value.
  *
  * An example of how it could be used:
  * \code
  * ResultVal<int> Frobnicate(float strength) {
  *     if (strength < 0.f || strength > 1.0f) {
  *         // Can't frobnicate too weakly or too strongly
- *         return ResultCode(ErrorDescription::OutOfRange, ErrorModule::Common,
- *             ErrorSummary::InvalidArgument, ErrorLevel::Permanent);
+ *         return ResultCode{ErrorModule::Common, 1};
  *     } else {
  *         // Frobnicated! Give caller a cookie
- *         return MakeResult<int>(42);
+ *         return 42;
  *     }
  * }
  * \endcode
  *
  * \code
- * ResultVal<int> frob_result = Frobnicate(0.75f);
+ * auto frob_result = Frobnicate(0.75f);
  * if (frob_result) {
  *     // Frobbed ok
  *     printf("My cookie is %d\n", *frob_result);
  * } else {
- *     printf("Guess I overdid it. :( Error code: %ux\n", frob_result.code().hex);
+ *     printf("Guess I overdid it. :( Error code: %ux\n", frob_result.Code().raw);
  * }
  * \endcode
  */
 template <typename T>
 class ResultVal {
 public:
-    /// Constructs an empty `ResultVal` with the given error code. The code must not be a success
-    /// code.
-    ResultVal(ResultCode error_code = ResultUnknown) : result_code(error_code) {
-        ASSERT(error_code.IsError());
-    }
+    constexpr ResultVal() : expected{} {}
 
-    /**
-     * Similar to the non-member function `MakeResult`, with the exception that you can manually
-     * specify the success code. `success_code` must not be an error code.
-     */
-    template <typename... Args>
-    [[nodiscard]] static ResultVal WithCode(ResultCode success_code, Args&&... args) {
-        ResultVal<T> result;
-        result.emplace(success_code, std::forward<Args>(args)...);
-        return result;
-    }
+    constexpr ResultVal(ResultCode code) : expected{Common::Unexpected(code)} {}
 
-    ResultVal(const ResultVal& o) noexcept : result_code(o.result_code) {
-        if (!o.empty()) {
-            new (&object) T(o.object);
-        }
-    }
-
-    ResultVal(ResultVal&& o) noexcept : result_code(o.result_code) {
-        if (!o.empty()) {
-            new (&object) T(std::move(o.object));
-        }
-    }
-
-    ~ResultVal() {
-        if (!empty()) {
-            object.~T();
-        }
-    }
-
-    ResultVal& operator=(const ResultVal& o) noexcept {
-        if (this == &o) {
-            return *this;
-        }
-        if (!empty()) {
-            if (!o.empty()) {
-                object = o.object;
-            } else {
-                object.~T();
-            }
-        } else {
-            if (!o.empty()) {
-                new (&object) T(o.object);
-            }
-        }
-        result_code = o.result_code;
-
-        return *this;
-    }
-
-    ResultVal& operator=(ResultVal&& o) noexcept {
-        if (this == &o) {
-            return *this;
-        }
-        if (!empty()) {
-            if (!o.empty()) {
-                object = std::move(o.object);
-            } else {
-                object.~T();
-            }
-        } else {
-            if (!o.empty()) {
-                new (&object) T(std::move(o.object));
-            }
-        }
-        result_code = o.result_code;
-
-        return *this;
-    }
-
-    /**
-     * Replaces the current result with a new constructed result value in-place. The code must not
-     * be an error code.
-     */
-    template <typename... Args>
-    void emplace(ResultCode success_code, Args&&... args) {
-        ASSERT(success_code.IsSuccess());
-        if (!empty()) {
-            object.~T();
-        }
-        new (&object) T(std::forward<Args>(args)...);
-        result_code = success_code;
-    }
-
-    /// Returns true if the `ResultVal` contains an error code and no value.
-    [[nodiscard]] bool empty() const {
-        return result_code.IsError();
-    }
-
-    /// Returns true if the `ResultVal` contains a return value.
-    [[nodiscard]] bool Succeeded() const {
-        return result_code.IsSuccess();
-    }
-    /// Returns true if the `ResultVal` contains an error code and no value.
-    [[nodiscard]] bool Failed() const {
-        return empty();
-    }
-
-    [[nodiscard]] ResultCode Code() const {
-        return result_code;
-    }
-
-    [[nodiscard]] const T& operator*() const {
-        return object;
-    }
-    [[nodiscard]] T& operator*() {
-        return object;
-    }
-    [[nodiscard]] const T* operator->() const {
-        return &object;
-    }
-    [[nodiscard]] T* operator->() {
-        return &object;
-    }
-
-    /// Returns the value contained in this `ResultVal`, or the supplied default if it is missing.
     template <typename U>
-    [[nodiscard]] T ValueOr(U&& value) const {
-        return !empty() ? object : std::move(value);
+    constexpr ResultVal(U&& val) : expected{std::forward<U>(val)} {}
+
+    template <typename... Args>
+    constexpr ResultVal(Args&&... args) : expected{std::in_place, std::forward<Args>(args)...} {}
+
+    ~ResultVal() = default;
+
+    constexpr ResultVal(const ResultVal&) = default;
+    constexpr ResultVal(ResultVal&&) = default;
+
+    ResultVal& operator=(const ResultVal&) = default;
+    ResultVal& operator=(ResultVal&&) = default;
+
+    [[nodiscard]] constexpr explicit operator bool() const noexcept {
+        return expected.has_value();
     }
 
-    /// Asserts that the result succeeded and returns a reference to it.
-    [[nodiscard]] T& Unwrap() & {
-        ASSERT_MSG(Succeeded(), "Tried to Unwrap empty ResultVal");
-        return **this;
+    [[nodiscard]] constexpr ResultCode Code() const {
+        return expected.has_value() ? ResultSuccess : expected.error();
     }
 
-    [[nodiscard]] T&& Unwrap() && {
+    [[nodiscard]] constexpr bool Succeeded() const {
+        return expected.has_value();
+    }
+
+    [[nodiscard]] constexpr bool Failed() const {
+        return !expected.has_value();
+    }
+
+    [[nodiscard]] constexpr T* operator->() {
+        return std::addressof(expected.value());
+    }
+
+    [[nodiscard]] constexpr const T* operator->() const {
+        return std::addressof(expected.value());
+    }
+
+    [[nodiscard]] constexpr T& operator*() & {
+        return *expected;
+    }
+
+    [[nodiscard]] constexpr const T& operator*() const& {
+        return *expected;
+    }
+
+    [[nodiscard]] constexpr T&& operator*() && {
+        return *expected;
+    }
+
+    [[nodiscard]] constexpr const T&& operator*() const&& {
+        return *expected;
+    }
+
+    [[nodiscard]] constexpr T& Unwrap() & {
         ASSERT_MSG(Succeeded(), "Tried to Unwrap empty ResultVal");
-        return std::move(**this);
+        return expected.value();
+    }
+
+    [[nodiscard]] constexpr const T& Unwrap() const& {
+        ASSERT_MSG(Succeeded(), "Tried to Unwrap empty ResultVal");
+        return expected.value();
+    }
+
+    [[nodiscard]] constexpr T&& Unwrap() && {
+        ASSERT_MSG(Succeeded(), "Tried to Unwrap empty ResultVal");
+        return std::move(expected.value());
+    }
+
+    [[nodiscard]] constexpr const T&& Unwrap() const&& {
+        ASSERT_MSG(Succeeded(), "Tried to Unwrap empty ResultVal");
+        return std::move(expected.value());
+    }
+
+    template <typename U>
+    [[nodiscard]] constexpr T ValueOr(U&& v) const& {
+        return expected.value_or(v);
+    }
+
+    template <typename U>
+    [[nodiscard]] constexpr T ValueOr(U&& v) && {
+        return expected.value_or(v);
     }
 
 private:
-    // A union is used to allocate the storage for the value, while allowing us to construct and
-    // destruct it at will.
-    union {
-        T object;
-    };
-    ResultCode result_code;
+    // TODO: Replace this with std::expected once it is standardized in the STL.
+    Common::Expected<T, ResultCode> expected;
 };
 
-/**
- * This function is a helper used to construct `ResultVal`s. It receives the arguments to construct
- * `T` with and creates a success `ResultVal` contained the constructed value.
- */
-template <typename T, typename... Args>
-[[nodiscard]] ResultVal<T> MakeResult(Args&&... args) {
-    return ResultVal<T>::WithCode(ResultSuccess, std::forward<Args>(args)...);
-}
-
-/**
- * Deducible overload of MakeResult, allowing the template parameter to be ommited if you're just
- * copy or move constructing.
- */
-template <typename Arg>
-[[nodiscard]] ResultVal<std::remove_cvref_t<Arg>> MakeResult(Arg&& arg) {
-    return ResultVal<std::remove_cvref_t<Arg>>::WithCode(ResultSuccess, std::forward<Arg>(arg));
-}
-
 /**
  * Check for the success of `source` (which must evaluate to a ResultVal). If it succeeds, unwraps
  * the contained value and assigns it to `target`, which can be either an l-value expression or a

src/core/hle/service/acc/acc.cpp

@@ -16,7 +16,6 @@
 #include "core/file_sys/control_metadata.h"
 #include "core/file_sys/patch_manager.h"
 #include "core/hle/ipc_helpers.h"
-#include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/service/acc/acc.h"
 #include "core/hle/service/acc/acc_aa.h"
@@ -26,9 +25,7 @@
 #include "core/hle/service/acc/async_context.h"
 #include "core/hle/service/acc/errors.h"
 #include "core/hle/service/acc/profile_manager.h"
-#include "core/hle/service/glue/arp.h"
 #include "core/hle/service/glue/glue_manager.h"
-#include "core/hle/service/sm/sm.h"
 #include "core/loader/loader.h"
 
 namespace Service::Account {
@@ -761,9 +758,8 @@ ResultCode Module::Interface::InitializeApplicationInfoBase() {
     // TODO(ogniK): This should be changed to reflect the target process for when we have multiple
     // processes emulated. As we don't actually have pid support we should assume we're just using
     // our own process
-    const auto& current_process = system.Kernel().CurrentProcess();
     const auto launch_property =
-        system.GetARPManager().GetLaunchProperty(current_process->GetTitleID());
+        system.GetARPManager().GetLaunchProperty(system.GetCurrentProcessProgramID());
 
     if (launch_property.Failed()) {
         LOG_ERROR(Service_ACC, "Failed to get launch property");
@@ -807,7 +803,7 @@ void Module::Interface::IsUserAccountSwitchLocked(Kernel::HLERequestContext& ctx
     bool is_locked = false;
 
     if (res != Loader::ResultStatus::Success) {
-        const FileSys::PatchManager pm{system.CurrentProcess()->GetTitleID(),
+        const FileSys::PatchManager pm{system.GetCurrentProcessProgramID(),
                                        system.GetFileSystemController(),
                                        system.GetContentProvider()};
         const auto nacp_unique = pm.GetControlMetadata().first;
@@ -826,6 +822,13 @@ void Module::Interface::IsUserAccountSwitchLocked(Kernel::HLERequestContext& ctx
     rb.Push(is_locked);
 }
 
+void Module::Interface::InitializeApplicationInfoV2(Kernel::HLERequestContext& ctx) {
+    LOG_WARNING(Service_ACC, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
 void Module::Interface::GetProfileEditor(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     Common::UUID user_id = rp.PopRaw<Common::UUID>();

src/core/hle/service/acc/acc.h

@@ -33,6 +33,7 @@ public:
         void IsUserRegistrationRequestPermitted(Kernel::HLERequestContext& ctx);
         void TrySelectUserWithoutInteraction(Kernel::HLERequestContext& ctx);
         void IsUserAccountSwitchLocked(Kernel::HLERequestContext& ctx);
+        void InitializeApplicationInfoV2(Kernel::HLERequestContext& ctx);
         void GetProfileEditor(Kernel::HLERequestContext& ctx);
         void ListQualifiedUsers(Kernel::HLERequestContext& ctx);
         void LoadOpenContext(Kernel::HLERequestContext& ctx);

src/core/hle/service/acc/acc_u0.cpp

@@ -34,6 +34,7 @@ ACC_U0::ACC_U0(std::shared_ptr<Module> module_, std::shared_ptr<ProfileManager>
         {140, &ACC_U0::InitializeApplicationInfoRestricted, "InitializeApplicationInfoRestricted"}, // 6.0.0+
         {141, &ACC_U0::ListQualifiedUsers, "ListQualifiedUsers"}, // 6.0.0+
         {150, &ACC_U0::IsUserAccountSwitchLocked, "IsUserAccountSwitchLocked"}, // 6.0.0+
+        {160, &ACC_U0::InitializeApplicationInfoV2, "InitializeApplicationInfoV2"},
     };
     // clang-format on
 

src/core/hle/service/am/am.cpp

@@ -15,15 +15,12 @@
 #include "core/file_sys/savedata_factory.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/k_event.h"
-#include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_transfer_memory.h"
-#include "core/hle/kernel/kernel.h"
 #include "core/hle/service/acc/profile_manager.h"
 #include "core/hle/service/am/am.h"
 #include "core/hle/service/am/applet_ae.h"
 #include "core/hle/service/am/applet_oe.h"
 #include "core/hle/service/am/applets/applet_profile_select.h"
-#include "core/hle/service/am/applets/applet_software_keyboard.h"
 #include "core/hle/service/am/applets/applet_web_browser.h"
 #include "core/hle/service/am/applets/applets.h"
 #include "core/hle/service/am/idle.h"
@@ -37,7 +34,6 @@
 #include "core/hle/service/ns/ns.h"
 #include "core/hle/service/nvflinger/nvflinger.h"
 #include "core/hle/service/pm/pm.h"
-#include "core/hle/service/set/set.h"
 #include "core/hle/service/sm/sm.h"
 #include "core/hle/service/vi/vi.h"
 #include "core/memory.h"
@@ -801,15 +797,11 @@ void ICommonStateGetter::GetDefaultDisplayResolution(Kernel::HLERequestContext&
     rb.Push(ResultSuccess);
 
     if (Settings::values.use_docked_mode.GetValue()) {
-        rb.Push(static_cast<u32>(Service::VI::DisplayResolution::DockedWidth) *
-                static_cast<u32>(Settings::values.resolution_factor.GetValue()));
-        rb.Push(static_cast<u32>(Service::VI::DisplayResolution::DockedHeight) *
-                static_cast<u32>(Settings::values.resolution_factor.GetValue()));
+        rb.Push(static_cast<u32>(Service::VI::DisplayResolution::DockedWidth));
+        rb.Push(static_cast<u32>(Service::VI::DisplayResolution::DockedHeight));
     } else {
-        rb.Push(static_cast<u32>(Service::VI::DisplayResolution::UndockedWidth) *
-                static_cast<u32>(Settings::values.resolution_factor.GetValue()));
-        rb.Push(static_cast<u32>(Service::VI::DisplayResolution::UndockedHeight) *
-                static_cast<u32>(Settings::values.resolution_factor.GetValue()));
+        rb.Push(static_cast<u32>(Service::VI::DisplayResolution::UndockedWidth));
+        rb.Push(static_cast<u32>(Service::VI::DisplayResolution::UndockedHeight));
     }
 }
 
@@ -1432,7 +1424,7 @@ void IApplicationFunctions::PopLaunchParameter(Kernel::HLERequestContext& ctx) {
         u64 build_id{};
         std::memcpy(&build_id, build_id_full.data(), sizeof(u64));
 
-        auto data = backend->GetLaunchParameter({system.CurrentProcess()->GetTitleID(), build_id});
+        auto data = backend->GetLaunchParameter({system.GetCurrentProcessProgramID(), build_id});
         if (data.has_value()) {
             IPC::ResponseBuilder rb{ctx, 2, 0, 1};
             rb.Push(ResultSuccess);
@@ -1484,7 +1476,7 @@ void IApplicationFunctions::EnsureSaveData(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_AM, "called, uid={:016X}{:016X}", user_id[1], user_id[0]);
 
     FileSys::SaveDataAttribute attribute{};
-    attribute.title_id = system.CurrentProcess()->GetTitleID();
+    attribute.title_id = system.GetCurrentProcessProgramID();
     attribute.user_id = user_id;
     attribute.type = FileSys::SaveDataType::SaveData;
     const auto res = system.GetFileSystemController().CreateSaveData(
@@ -1514,7 +1506,7 @@ void IApplicationFunctions::GetDisplayVersion(Kernel::HLERequestContext& ctx) {
     std::array<u8, 0x10> version_string{};
 
     const auto res = [this] {
-        const auto title_id = system.CurrentProcess()->GetTitleID();
+        const auto title_id = system.GetCurrentProcessProgramID();
 
         const FileSys::PatchManager pm{title_id, system.GetFileSystemController(),
                                        system.GetContentProvider()};
@@ -1551,7 +1543,7 @@ void IApplicationFunctions::GetDesiredLanguage(Kernel::HLERequestContext& ctx) {
     u32 supported_languages = 0;
 
     const auto res = [this] {
-        const auto title_id = system.CurrentProcess()->GetTitleID();
+        const auto title_id = system.GetCurrentProcessProgramID();
 
         const FileSys::PatchManager pm{title_id, system.GetFileSystemController(),
                                        system.GetContentProvider()};
@@ -1659,7 +1651,7 @@ void IApplicationFunctions::ExtendSaveData(Kernel::HLERequestContext& ctx) {
               static_cast<u8>(type), user_id[1], user_id[0], new_normal_size, new_journal_size);
 
     system.GetFileSystemController().WriteSaveDataSize(
-        type, system.CurrentProcess()->GetTitleID(), user_id, {new_normal_size, new_journal_size});
+        type, system.GetCurrentProcessProgramID(), user_id, {new_normal_size, new_journal_size});
 
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(ResultSuccess);
@@ -1683,7 +1675,7 @@ void IApplicationFunctions::GetSaveDataSize(Kernel::HLERequestContext& ctx) {
               user_id[0]);
 
     const auto size = system.GetFileSystemController().ReadSaveDataSize(
-        type, system.CurrentProcess()->GetTitleID(), user_id);
+        type, system.GetCurrentProcessProgramID(), user_id);
 
     IPC::ResponseBuilder rb{ctx, 6};
     rb.Push(ResultSuccess);

src/core/hle/service/am/applets/applet_error.cpp

@@ -9,7 +9,6 @@
 #include "common/string_util.h"
 #include "core/core.h"
 #include "core/frontend/applets/error.h"
-#include "core/hle/kernel/k_process.h"
 #include "core/hle/service/am/am.h"
 #include "core/hle/service/am/applets/applet_error.h"
 #include "core/reporter.h"
@@ -167,7 +166,7 @@ void Error::Execute() {
     }
 
     const auto callback = [this] { DisplayCompleted(); };
-    const auto title_id = system.CurrentProcess()->GetTitleID();
+    const auto title_id = system.GetCurrentProcessProgramID();
     const auto& reporter{system.GetReporter()};
 
     switch (mode) {

src/core/hle/service/am/applets/applet_general_backend.cpp

@@ -2,14 +2,11 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <string_view>
-
 #include "common/assert.h"
 #include "common/hex_util.h"
 #include "common/logging/log.h"
 #include "core/core.h"
 #include "core/frontend/applets/general_frontend.h"
-#include "core/hle/kernel/k_process.h"
 #include "core/hle/result.h"
 #include "core/hle/service/am/am.h"
 #include "core/hle/service/am/applets/applet_general_backend.h"
@@ -189,7 +186,7 @@ void PhotoViewer::Execute() {
     const auto callback = [this] { ViewFinished(); };
     switch (mode) {
     case PhotoViewerAppletMode::CurrentApp:
-        frontend.ShowPhotosForApplication(system.CurrentProcess()->GetTitleID(), callback);
+        frontend.ShowPhotosForApplication(system.GetCurrentProcessProgramID(), callback);
         break;
     case PhotoViewerAppletMode::AllApps:
         frontend.ShowAllPhotos(callback);

src/core/hle/service/am/applets/applet_software_keyboard.cpp

@@ -109,13 +109,18 @@ void SoftwareKeyboard::Execute() {
     ShowNormalKeyboard();
 }
 
-void SoftwareKeyboard::SubmitTextNormal(SwkbdResult result, std::u16string submitted_text) {
+void SoftwareKeyboard::SubmitTextNormal(SwkbdResult result, std::u16string submitted_text,
+                                        bool confirmed) {
     if (complete) {
         return;
     }
 
     if (swkbd_config_common.use_text_check && result == SwkbdResult::Ok) {
-        SubmitForTextCheck(submitted_text);
+        if (confirmed) {
+            SubmitNormalOutputAndExit(result, submitted_text);
+        } else {
+            SubmitForTextCheck(submitted_text);
+        }
     } else {
         SubmitNormalOutputAndExit(result, submitted_text);
     }
@@ -273,13 +278,21 @@ void SoftwareKeyboard::ProcessTextCheck() {
 
     std::memcpy(&swkbd_text_check, text_check_data.data(), sizeof(SwkbdTextCheck));
 
-    std::u16string text_check_message =
-        swkbd_text_check.text_check_result == SwkbdTextCheckResult::Failure ||
-                swkbd_text_check.text_check_result == SwkbdTextCheckResult::Confirm
-            ? Common::UTF16StringFromFixedZeroTerminatedBuffer(
-                  swkbd_text_check.text_check_message.data(),
-                  swkbd_text_check.text_check_message.size())
-            : u"";
+    std::u16string text_check_message = [this, &swkbd_text_check]() -> std::u16string {
+        if (swkbd_text_check.text_check_result == SwkbdTextCheckResult::Failure ||
+            swkbd_text_check.text_check_result == SwkbdTextCheckResult::Confirm) {
+            return swkbd_config_common.use_utf8
+                       ? Common::UTF8ToUTF16(Common::StringFromFixedZeroTerminatedBuffer(
+                             reinterpret_cast<const char*>(
+                                 swkbd_text_check.text_check_message.data()),
+                             swkbd_text_check.text_check_message.size() * sizeof(char16_t)))
+                       : Common::UTF16StringFromFixedZeroTerminatedBuffer(
+                             swkbd_text_check.text_check_message.data(),
+                             swkbd_text_check.text_check_message.size());
+        } else {
+            return u"";
+        }
+    }();
 
     LOG_INFO(Service_AM, "\nTextCheckResult: {}\nTextCheckMessage: {}",
              GetTextCheckResultName(swkbd_text_check.text_check_result),
@@ -583,11 +596,12 @@ void SoftwareKeyboard::InitializeFrontendKeyboard() {
             .disable_cancel_button{disable_cancel_button},
         };
 
-        frontend.InitializeKeyboard(false, std::move(initialize_parameters),
-                                    [this](SwkbdResult result, std::u16string submitted_text) {
-                                        SubmitTextNormal(result, submitted_text);
-                                    },
-                                    {});
+        frontend.InitializeKeyboard(
+            false, std::move(initialize_parameters),
+            [this](SwkbdResult result, std::u16string submitted_text, bool confirmed) {
+                SubmitTextNormal(result, submitted_text, confirmed);
+            },
+            {});
     }
 }
 

src/core/hle/service/am/applets/applet_software_keyboard.h

@@ -4,7 +4,6 @@
 
 #pragma once
 
-#include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "core/hle/result.h"
 #include "core/hle/service/am/applets/applet_software_keyboard_types.h"
@@ -37,8 +36,9 @@ public:
      *
      * @param result SwkbdResult enum
      * @param submitted_text UTF-16 encoded string
+     * @param confirmed Whether the text has been confirmed after TextCheckResult::Confirm
      */
-    void SubmitTextNormal(SwkbdResult result, std::u16string submitted_text);
+    void SubmitTextNormal(SwkbdResult result, std::u16string submitted_text, bool confirmed);
 
     /**
      * Submits the input text to the application.