core: Do not update framebuffer layout on android

* Associate 3ds files with Citra in Info.plist

* qt: Add support for opening files directly on macOS.

---------

Co-authored-by: shinra-electric <50119606+shinra-electric@users.noreply.github.com>

dist/apple/Info.plist.in

@@ -26,6 +26,38 @@
     <!-- Fixed -->
     <key>LSApplicationCategoryType</key>
     <string>public.app-category.games</string>
+    <key>CFBundleDocumentTypes</key>
+    <array>
+        <dict>
+            <key>CFBundleTypeExtensions</key>
+            <array>
+                <string>3ds</string>
+                <string>3dsx</string>
+                <string>cci</string>
+                <string>cxi</string>
+                <string>cia</string>
+            </array>
+            <key>CFBundleTypeName</key>
+            <string>Nintendo 3DS File</string>
+            <key>CFBundleTypeRole</key>
+            <string>Viewer</string>
+            <key>LSHandlerRank</key>
+            <string>Default</string>
+        </dict>
+        <dict>
+            <key>CFBundleTypeExtensions</key>
+            <array>
+                <string>elf</string>
+                <string>axf</string>
+            </array>
+            <key>CFBundleTypeName</key>
+            <string>Unix Executable and Linkable Format</string>
+            <key>CFBundleTypeRole</key>
+            <string>Viewer</string>
+            <key>LSHandlerRank</key>
+            <string>Alternate</string>
+        </dict>
+    </array>
     <key>NSCameraUsageDescription</key>
     <string>This app requires camera access to emulate the 3DS&apos;s cameras.</string>
     <key>NSMicrophoneUsageDescription</key>

src/android/app/src/main/java/org/citra/citra_emu/features/cheats/model/CheatEngine.kt

@@ -7,25 +7,13 @@ package org.citra.citra_emu.features.cheats.model
 import androidx.annotation.Keep
 
 @Keep
-class CheatEngine(titleId: Long) {
-    @Keep
-    private val mPointer: Long
-
-    init {
-        mPointer = initialize(titleId)
-    }
-
-    protected external fun finalize()
+object CheatEngine {
+    external fun loadCheatFile(titleId: Long)
+    external fun saveCheatFile(titleId: Long)
 
     external fun getCheats(): Array<Cheat>
 
     external fun addCheat(cheat: Cheat?)
     external fun removeCheat(index: Int)
     external fun updateCheat(index: Int, newCheat: Cheat?)
-    external fun saveCheatFile()
-
-    companion object {
-        @JvmStatic
-        private external fun initialize(titleId: Long): Long
-    }
 }

src/android/app/src/main/java/org/citra/citra_emu/features/cheats/model/CheatsViewModel.kt

@@ -47,18 +47,19 @@ class CheatsViewModel : ViewModel() {
     val detailsViewFocusChange get() = _detailsViewFocusChange.asStateFlow()
     private val _detailsViewFocusChange = MutableStateFlow(false)
 
-    private var cheatEngine: CheatEngine? = null
+    private var titleId: Long = 0
     lateinit var cheats: Array<Cheat>
     private var cheatsNeedSaving = false
     private var selectedCheatPosition = -1
 
-    fun initialize(titleId: Long) {
-        cheatEngine = CheatEngine(titleId)
+    fun initialize(titleId_: Long) {
+        titleId = titleId_;
         load()
     }
 
     private fun load() {
-        cheats = cheatEngine!!.getCheats()
+        CheatEngine.loadCheatFile(titleId)
+        cheats = CheatEngine.getCheats()
         for (i in cheats.indices) {
             cheats[i].setEnabledChangedCallback {
                 cheatsNeedSaving = true
@@ -69,7 +70,7 @@ class CheatsViewModel : ViewModel() {
 
     fun saveIfNeeded() {
         if (cheatsNeedSaving) {
-            cheatEngine!!.saveCheatFile()
+            CheatEngine.saveCheatFile(titleId)
             cheatsNeedSaving = false
         }
     }
@@ -107,7 +108,7 @@ class CheatsViewModel : ViewModel() {
         _isAdding.value = false
         _isEditing.value = false
         val position = cheats.size
-        cheatEngine!!.addCheat(cheat)
+        CheatEngine.addCheat(cheat)
         cheatsNeedSaving = true
         load()
         notifyCheatAdded(position)
@@ -123,7 +124,7 @@ class CheatsViewModel : ViewModel() {
     }
 
     fun updateSelectedCheat(newCheat: Cheat?) {
-        cheatEngine!!.updateCheat(selectedCheatPosition, newCheat)
+        CheatEngine.updateCheat(selectedCheatPosition, newCheat)
         cheatsNeedSaving = true
         load()
         notifyCheatUpdated(selectedCheatPosition)
@@ -141,7 +142,7 @@ class CheatsViewModel : ViewModel() {
     fun deleteSelectedCheat() {
         val position = selectedCheatPosition
         setSelectedCheat(null, -1)
-        cheatEngine!!.removeCheat(position)
+        CheatEngine.removeCheat(position)
         cheatsNeedSaving = true
         load()
         notifyCheatDeleted(position)

src/android/app/src/main/jni/cheats/cheat_engine.cpp

@@ -15,24 +15,24 @@
 
 extern "C" {
 
-static Cheats::CheatEngine* GetPointer(JNIEnv* env, jobject obj) {
-    return reinterpret_cast<Cheats::CheatEngine*>(
-        env->GetLongField(obj, IDCache::GetCheatEnginePointer()));
+static Cheats::CheatEngine& GetEngine() {
+    Core::System& system{Core::System::GetInstance()};
+    return system.CheatEngine();
 }
 
-JNIEXPORT jlong JNICALL Java_org_citra_citra_1emu_features_cheats_model_CheatEngine_initialize(
+JNIEXPORT void JNICALL Java_org_citra_citra_1emu_features_cheats_model_CheatEngine_loadCheatFile(
     JNIEnv* env, jclass, jlong title_id) {
-    return reinterpret_cast<jlong>(new Cheats::CheatEngine(title_id, Core::System::GetInstance()));
+    GetEngine().LoadCheatFile(title_id);
 }
 
-JNIEXPORT void JNICALL
-Java_org_citra_citra_1emu_features_cheats_model_CheatEngine_finalize(JNIEnv* env, jobject obj) {
-    delete GetPointer(env, obj);
+JNIEXPORT void JNICALL Java_org_citra_citra_1emu_features_cheats_model_CheatEngine_saveCheatFile(
+    JNIEnv* env, jclass, jlong title_id) {
+    GetEngine().SaveCheatFile(title_id);
 }
 
 JNIEXPORT jobjectArray JNICALL
-Java_org_citra_citra_1emu_features_cheats_model_CheatEngine_getCheats(JNIEnv* env, jobject obj) {
-    auto cheats = GetPointer(env, obj)->GetCheats();
+Java_org_citra_citra_1emu_features_cheats_model_CheatEngine_getCheats(JNIEnv* env, jclass) {
+    auto cheats = GetEngine().GetCheats();
 
     const jobjectArray array =
         env->NewObjectArray(static_cast<jsize>(cheats.size()), IDCache::GetCheatClass(), nullptr);
@@ -45,22 +45,19 @@ Java_org_citra_citra_1emu_features_cheats_model_CheatEngine_getCheats(JNIEnv* en
 }
 
 JNIEXPORT void JNICALL Java_org_citra_citra_1emu_features_cheats_model_CheatEngine_addCheat(
-    JNIEnv* env, jobject obj, jobject j_cheat) {
-    GetPointer(env, obj)->AddCheat(*CheatFromJava(env, j_cheat));
+    JNIEnv* env, jclass, jobject j_cheat) {
+    auto cheat = *CheatFromJava(env, j_cheat);
+    GetEngine().AddCheat(std::move(cheat));
 }
 
 JNIEXPORT void JNICALL Java_org_citra_citra_1emu_features_cheats_model_CheatEngine_removeCheat(
-    JNIEnv* env, jobject obj, jint index) {
-    GetPointer(env, obj)->RemoveCheat(index);
+    JNIEnv* env, jclass, jint index) {
+    GetEngine().RemoveCheat(index);
 }
 
 JNIEXPORT void JNICALL Java_org_citra_citra_1emu_features_cheats_model_CheatEngine_updateCheat(
-    JNIEnv* env, jobject obj, jint index, jobject j_new_cheat) {
-    GetPointer(env, obj)->UpdateCheat(index, *CheatFromJava(env, j_new_cheat));
-}
-
-JNIEXPORT void JNICALL Java_org_citra_citra_1emu_features_cheats_model_CheatEngine_saveCheatFile(
-    JNIEnv* env, jobject obj) {
-    GetPointer(env, obj)->SaveCheatFile();
+    JNIEnv* env, jclass, jint index, jobject j_new_cheat) {
+    auto cheat = *CheatFromJava(env, j_new_cheat);
+    GetEngine().UpdateCheat(index, std::move(cheat));
 }
 }

src/android/app/src/main/jni/config.cpp

@@ -146,6 +146,7 @@ void Config::ReadValues() {
     ReadSetting("Renderer", Settings::values.use_disk_shader_cache);
     ReadSetting("Renderer", Settings::values.use_vsync_new);
     ReadSetting("Renderer", Settings::values.texture_filter);
+    ReadSetting("Renderer", Settings::values.texture_sampling);
 
     // Work around to map Android setting for enabling the frame limiter to the format Citra expects
     if (sdl2_config->GetBoolean("Renderer", "use_frame_limit", true)) {

src/android/app/src/main/jni/id_cache.cpp

@@ -35,8 +35,6 @@ static jclass s_cheat_class;
 static jfieldID s_cheat_pointer;
 static jmethodID s_cheat_constructor;
 
-static jfieldID s_cheat_engine_pointer;
-
 static jfieldID s_game_info_pointer;
 
 static jclass s_disk_cache_progress_class;
@@ -116,10 +114,6 @@ jmethodID GetCheatConstructor() {
     return s_cheat_constructor;
 }
 
-jfieldID GetCheatEnginePointer() {
-    return s_cheat_engine_pointer;
-}
-
 jfieldID GetGameInfoPointer() {
     return s_game_info_pointer;
 }
@@ -195,12 +189,6 @@ jint JNI_OnLoad(JavaVM* vm, void* reserved) {
     s_cheat_constructor = env->GetMethodID(cheat_class, "<init>", "(J)V");
     env->DeleteLocalRef(cheat_class);
 
-    // Initialize CheatEngine
-    const jclass cheat_engine_class =
-        env->FindClass("org/citra/citra_emu/features/cheats/model/CheatEngine");
-    s_cheat_engine_pointer = env->GetFieldID(cheat_engine_class, "mPointer", "J");
-    env->DeleteLocalRef(cheat_engine_class);
-
     // Initialize GameInfo
     const jclass game_info_class = env->FindClass("org/citra/citra_emu/model/GameInfo");
     s_game_info_pointer = env->GetFieldID(game_info_class, "pointer", "J");

src/android/app/src/main/jni/id_cache.h

@@ -35,8 +35,6 @@ jclass GetCheatClass();
 jfieldID GetCheatPointer();
 jmethodID GetCheatConstructor();
 
-jfieldID GetCheatEnginePointer();
-
 jfieldID GetGameInfoPointer();
 
 jclass GetDiskCacheProgressClass();

src/audio_core/CMakeLists.txt

@@ -4,11 +4,11 @@ add_library(audio_core STATIC
     codec.h
     dsp_interface.cpp
     dsp_interface.h
+    hle/aac_decoder.cpp
+    hle/aac_decoder.h
     hle/common.h
     hle/decoder.cpp
     hle/decoder.h
-    hle/faad2_decoder.cpp
-    hle/faad2_decoder.h
     hle/filter.cpp
     hle/filter.h
     hle/hle.cpp

src/audio_core/hle/aac_decoder.cpp

@@ -3,30 +3,11 @@
 // Refer to the license.txt file included.
 
 #include <neaacdec.h>
-#include "audio_core/hle/faad2_decoder.h"
+#include "audio_core/hle/aac_decoder.h"
 
 namespace AudioCore::HLE {
 
-class FAAD2Decoder::Impl {
-public:
-    explicit Impl(Memory::MemorySystem& memory);
-    ~Impl();
-    std::optional<BinaryMessage> ProcessRequest(const BinaryMessage& request);
-    bool IsValid() const {
-        return decoder != nullptr;
-    }
-
-private:
-    std::optional<BinaryMessage> Initalize(const BinaryMessage& request);
-
-    std::optional<BinaryMessage> Decode(const BinaryMessage& request);
-
-    Memory::MemorySystem& memory;
-
-    NeAACDecHandle decoder = nullptr;
-};
-
-FAAD2Decoder::Impl::Impl(Memory::MemorySystem& memory) : memory(memory) {
+AACDecoder::AACDecoder(Memory::MemorySystem& memory) : memory(memory) {
     decoder = NeAACDecOpen();
     if (decoder == nullptr) {
         LOG_CRITICAL(Audio_DSP, "Could not open FAAD2 decoder.");
@@ -46,7 +27,7 @@ FAAD2Decoder::Impl::Impl(Memory::MemorySystem& memory) : memory(memory) {
     LOG_INFO(Audio_DSP, "Created FAAD2 AAC decoder.");
 }
 
-FAAD2Decoder::Impl::~Impl() {
+AACDecoder::~AACDecoder() {
     if (decoder) {
         NeAACDecClose(decoder);
         decoder = nullptr;
@@ -55,16 +36,23 @@ FAAD2Decoder::Impl::~Impl() {
     }
 }
 
-std::optional<BinaryMessage> FAAD2Decoder::Impl::ProcessRequest(const BinaryMessage& request) {
+BinaryMessage AACDecoder::ProcessRequest(const BinaryMessage& request) {
     if (request.header.codec != DecoderCodec::DecodeAAC) {
-        LOG_ERROR(Audio_DSP, "FAAD2 AAC Decoder cannot handle such codec: {}",
+        LOG_ERROR(Audio_DSP, "AAC decoder received unsupported codec: {}",
                   static_cast<u16>(request.header.codec));
-        return {};
+        return {
+            .header =
+                {
+                    .result = ResultStatus::Error,
+                },
+        };
     }
 
     switch (request.header.cmd) {
     case DecoderCommand::Init: {
-        return Initalize(request);
+        BinaryMessage response = request;
+        response.header.result = ResultStatus::Success;
+        return response;
     }
     case DecoderCommand::EncodeDecode: {
         return Decode(request);
@@ -72,26 +60,25 @@ std::optional<BinaryMessage> FAAD2Decoder::Impl::ProcessRequest(const BinaryMess
     case DecoderCommand::Shutdown:
     case DecoderCommand::SaveState:
     case DecoderCommand::LoadState: {
-        LOG_WARNING(Audio_DSP, "Got unimplemented binary request: {}",
+        LOG_WARNING(Audio_DSP, "Got unimplemented AAC binary request: {}",
                     static_cast<u16>(request.header.cmd));
         BinaryMessage response = request;
         response.header.result = ResultStatus::Success;
         return response;
     }
     default:
-        LOG_ERROR(Audio_DSP, "Got unknown binary request: {}",
+        LOG_ERROR(Audio_DSP, "Got unknown AAC binary request: {}",
                   static_cast<u16>(request.header.cmd));
-        return {};
+        return {
+            .header =
+                {
+                    .result = ResultStatus::Error,
+                },
+        };
     }
 }
 
-std::optional<BinaryMessage> FAAD2Decoder::Impl::Initalize(const BinaryMessage& request) {
-    BinaryMessage response = request;
-    response.header.result = ResultStatus::Success;
-    return response;
-}
-
-std::optional<BinaryMessage> FAAD2Decoder::Impl::Decode(const BinaryMessage& request) {
+BinaryMessage AACDecoder::Decode(const BinaryMessage& request) {
     BinaryMessage response{};
     response.header.codec = request.header.codec;
     response.header.cmd = request.header.cmd;
@@ -101,6 +88,10 @@ std::optional<BinaryMessage> FAAD2Decoder::Impl::Decode(const BinaryMessage& req
     response.decode_aac_response.num_channels = 2;
     response.decode_aac_response.num_samples = 1024;
 
+    if (decoder == nullptr) {
+        return response;
+    }
+
     if (request.decode_aac_request.src_addr < Memory::FCRAM_PADDR ||
         request.decode_aac_request.src_addr + request.decode_aac_request.size >
             Memory::FCRAM_PADDR + Memory::FCRAM_SIZE) {
@@ -171,16 +162,4 @@ std::optional<BinaryMessage> FAAD2Decoder::Impl::Decode(const BinaryMessage& req
     return response;
 }
 
-FAAD2Decoder::FAAD2Decoder(Memory::MemorySystem& memory) : impl(std::make_unique<Impl>(memory)) {}
-
-FAAD2Decoder::~FAAD2Decoder() = default;
-
-std::optional<BinaryMessage> FAAD2Decoder::ProcessRequest(const BinaryMessage& request) {
-    return impl->ProcessRequest(request);
-}
-
-bool FAAD2Decoder::IsValid() const {
-    return impl->IsValid();
-}
-
 } // namespace AudioCore::HLE

src/audio_core/hle/aac_decoder.h

@@ -0,0 +1,26 @@
+// Copyright 2023 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "audio_core/hle/decoder.h"
+
+namespace AudioCore::HLE {
+
+using NeAACDecHandle = void*;
+
+class AACDecoder final : public DecoderBase {
+public:
+    explicit AACDecoder(Memory::MemorySystem& memory);
+    ~AACDecoder() override;
+    BinaryMessage ProcessRequest(const BinaryMessage& request) override;
+
+private:
+    BinaryMessage Decode(const BinaryMessage& request);
+
+    Memory::MemorySystem& memory;
+    NeAACDecHandle decoder = nullptr;
+};
+
+} // namespace AudioCore::HLE

src/audio_core/hle/decoder.cpp

@@ -32,34 +32,4 @@ DecoderSampleRate GetSampleRateEnum(u32 sample_rate) {
     }
 }
 
-DecoderBase::~DecoderBase(){};
-
-NullDecoder::NullDecoder() = default;
-
-NullDecoder::~NullDecoder() = default;
-
-std::optional<BinaryMessage> NullDecoder::ProcessRequest(const BinaryMessage& request) {
-    BinaryMessage response{};
-    switch (request.header.cmd) {
-    case DecoderCommand::Init:
-    case DecoderCommand::Shutdown:
-    case DecoderCommand::SaveState:
-    case DecoderCommand::LoadState:
-        response = request;
-        response.header.result = ResultStatus::Success;
-        return response;
-    case DecoderCommand::EncodeDecode:
-        response.header.codec = request.header.codec;
-        response.header.cmd = request.header.cmd;
-        response.header.result = ResultStatus::Success;
-        response.decode_aac_response.num_channels = 2; // Just assume stereo here
-        response.decode_aac_response.size = request.decode_aac_request.size;
-        response.decode_aac_response.num_samples = 1024; // Just assume 1024 here
-        return response;
-    default:
-        LOG_ERROR(Audio_DSP, "Got unknown binary request: {}",
-                  static_cast<u16>(request.header.cmd));
-        return std::nullopt;
-    }
-};
 } // namespace AudioCore::HLE

src/audio_core/hle/decoder.h

@@ -135,21 +135,8 @@ enum_le<DecoderSampleRate> GetSampleRateEnum(u32 sample_rate);
 
 class DecoderBase {
 public:
-    virtual ~DecoderBase();
-    virtual std::optional<BinaryMessage> ProcessRequest(const BinaryMessage& request) = 0;
-    /// Return true if this Decoder can be loaded. Return false if the system cannot create the
-    /// decoder
-    virtual bool IsValid() const = 0;
-};
-
-class NullDecoder final : public DecoderBase {
-public:
-    NullDecoder();
-    ~NullDecoder() override;
-    std::optional<BinaryMessage> ProcessRequest(const BinaryMessage& request) override;
-    bool IsValid() const override {
-        return true;
-    }
+    virtual ~DecoderBase() = default;
+    virtual BinaryMessage ProcessRequest(const BinaryMessage& request) = 0;
 };
 
 } // namespace AudioCore::HLE

src/audio_core/hle/faad2_decoder.h

@@ -1,23 +0,0 @@
-// Copyright 2023 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include "audio_core/hle/decoder.h"
-
-namespace AudioCore::HLE {
-
-class FAAD2Decoder final : public DecoderBase {
-public:
-    explicit FAAD2Decoder(Memory::MemorySystem& memory);
-    ~FAAD2Decoder() override;
-    std::optional<BinaryMessage> ProcessRequest(const BinaryMessage& request) override;
-    bool IsValid() const override;
-
-private:
-    class Impl;
-    std::unique_ptr<Impl> impl;
-};
-
-} // namespace AudioCore::HLE

src/audio_core/hle/hle.cpp

@@ -8,9 +8,9 @@
 #include <boost/serialization/vector.hpp>
 #include <boost/serialization/weak_ptr.hpp>
 #include "audio_core/audio_types.h"
+#include "audio_core/hle/aac_decoder.h"
 #include "audio_core/hle/common.h"
 #include "audio_core/hle/decoder.h"
-#include "audio_core/hle/faad2_decoder.h"
 #include "audio_core/hle/hle.h"
 #include "audio_core/hle/mixers.h"
 #include "audio_core/hle/shared_memory.h"
@@ -24,16 +24,10 @@
 #include "core/core.h"
 #include "core/core_timing.h"
 
-SERIALIZE_EXPORT_IMPL(AudioCore::DspHle)
-
 using InterruptType = Service::DSP::InterruptType;
 
 namespace AudioCore {
 
-DspHle::DspHle()
-    : DspHle(Core::System::GetInstance(), Core::System::GetInstance().Memory(),
-             Core::System::GetInstance().CoreTiming()) {}
-
 DspHle::DspHle(Core::System& system) : DspHle(system, system.Memory(), system.CoreTiming()) {}
 
 template <class Archive>
@@ -98,7 +92,7 @@ private:
     Core::Timing& core_timing;
     Core::TimingEventType* tick_event{};
 
-    std::unique_ptr<HLE::DecoderBase> decoder{};
+    std::unique_ptr<HLE::DecoderBase> aac_decoder{};
 
     std::function<void(Service::DSP::InterruptType type, DspPipe pipe)> interrupt_handler{};
 
@@ -114,13 +108,6 @@ private:
     friend class boost::serialization::access;
 };
 
-static std::vector<std::function<std::unique_ptr<HLE::DecoderBase>(Memory::MemorySystem&)>>
-    decoder_backends = {
-        [](Memory::MemorySystem& memory) -> std::unique_ptr<HLE::DecoderBase> {
-            return std::make_unique<HLE::FAAD2Decoder>(memory);
-        },
-};
-
 DspHle::Impl::Impl(DspHle& parent_, Memory::MemorySystem& memory, Core::Timing& timing)
     : parent(parent_), core_timing(timing) {
     dsp_memory.raw_memory.fill(0);
@@ -129,19 +116,7 @@ DspHle::Impl::Impl(DspHle& parent_, Memory::MemorySystem& memory, Core::Timing&
         source.SetMemory(memory);
     }
 
-    for (auto& factory : decoder_backends) {
-        decoder = factory(memory);
-        if (decoder && decoder->IsValid()) {
-            break;
-        }
-    }
-
-    if (!decoder || !decoder->IsValid()) {
-        LOG_WARNING(Audio_DSP,
-                    "Unable to load any decoders, this could cause missing audio in some games");
-        decoder = std::make_unique<HLE::NullDecoder>();
-    }
-
+    aac_decoder = std::make_unique<HLE::AACDecoder>(memory);
     tick_event =
         core_timing.RegisterEvent("AudioCore::DspHle::tick_event", [this](u64, s64 cycles_late) {
             this->AudioTickCallback(cycles_late);
@@ -291,12 +266,9 @@ void DspHle::Impl::PipeWrite(DspPipe pipe_number, std::span<const u8> buffer) {
             UNIMPLEMENTED();
             return;
         }
-        std::optional<HLE::BinaryMessage> response = decoder->ProcessRequest(request);
-        if (response) {
-            const HLE::BinaryMessage& value = *response;
-            pipe_data[static_cast<u32>(pipe_number)].resize(sizeof(value));
-            std::memcpy(pipe_data[static_cast<u32>(pipe_number)].data(), &value, sizeof(value));
-        }
+        const HLE::BinaryMessage response = aac_decoder->ProcessRequest(request);
+        pipe_data[static_cast<u32>(pipe_number)].resize(sizeof(response));
+        std::memcpy(pipe_data[static_cast<u32>(pipe_number)].data(), &response, sizeof(response));
 
         interrupt_handler(InterruptType::Pipe, DspPipe::Binary);
         break;

src/audio_core/hle/hle.h

@@ -50,13 +50,9 @@ private:
     friend struct Impl;
     std::unique_ptr<Impl> impl;
 
-    DspHle();
-
     template <class Archive>
     void serialize(Archive& ar, const unsigned int);
     friend class boost::serialization::access;
 };
 
 } // namespace AudioCore
-
-BOOST_CLASS_EXPORT_KEY(AudioCore::DspHle)

src/audio_core/input_details.cpp

@@ -24,8 +24,8 @@ namespace {
 constexpr std::array input_details = {
 #ifdef HAVE_CUBEB
     InputDetails{InputType::Cubeb, "Real Device (Cubeb)", true,
-                 [](std::string_view device_id) -> std::unique_ptr<Input> {
-                     if (!Core::System::GetInstance().HasMicPermission()) {
+                 [](Core::System& system, std::string_view device_id) -> std::unique_ptr<Input> {
+                     if (!system.HasMicPermission()) {
                          LOG_WARNING(Audio,
                                      "Microphone permission denied, falling back to null input.");
                          return std::make_unique<NullInput>();
@@ -36,8 +36,8 @@ constexpr std::array input_details = {
 #endif
 #ifdef HAVE_OPENAL
     InputDetails{InputType::OpenAL, "Real Device (OpenAL)", true,
-                 [](std::string_view device_id) -> std::unique_ptr<Input> {
-                     if (!Core::System::GetInstance().HasMicPermission()) {
+                 [](Core::System& system, std::string_view device_id) -> std::unique_ptr<Input> {
+                     if (!system.HasMicPermission()) {
                          LOG_WARNING(Audio,
                                      "Microphone permission denied, falling back to null input.");
                          return std::make_unique<NullInput>();
@@ -47,12 +47,12 @@ constexpr std::array input_details = {
                  &ListOpenALInputDevices},
 #endif
     InputDetails{InputType::Static, "Static Noise", false,
-                 [](std::string_view device_id) -> std::unique_ptr<Input> {
+                 [](Core::System& system, std::string_view device_id) -> std::unique_ptr<Input> {
                      return std::make_unique<StaticInput>();
                  },
                  [] { return std::vector<std::string>{"Static Noise"}; }},
     InputDetails{InputType::Null, "None", false,
-                 [](std::string_view device_id) -> std::unique_ptr<Input> {
+                 [](Core::System& system, std::string_view device_id) -> std::unique_ptr<Input> {
                      return std::make_unique<NullInput>();
                  },
                  [] { return std::vector<std::string>{"None"}; }},

src/audio_core/input_details.h

@@ -10,6 +10,10 @@
 #include <vector>
 #include "common/common_types.h"
 
+namespace Core {
+class System;
+}
+
 namespace AudioCore {
 
 class Input;
@@ -23,7 +27,7 @@ enum class InputType : u32 {
 };
 
 struct InputDetails {
-    using FactoryFn = std::unique_ptr<Input> (*)(std::string_view device_id);
+    using FactoryFn = std::unique_ptr<Input> (*)(Core::System& system, std::string_view device_id);
     using ListDevicesFn = std::vector<std::string> (*)();
 
     /// Type of this input.

src/citra/config.cpp

@@ -146,6 +146,7 @@ void Config::ReadValues() {
     ReadSetting("Renderer", Settings::values.frame_limit);
     ReadSetting("Renderer", Settings::values.use_vsync_new);
     ReadSetting("Renderer", Settings::values.texture_filter);
+    ReadSetting("Renderer", Settings::values.texture_sampling);
 
     ReadSetting("Renderer", Settings::values.mono_render_option);
     ReadSetting("Renderer", Settings::values.render_3d);

src/citra_qt/configuration/config.cpp

@@ -645,6 +645,7 @@ void Config::ReadRendererValues() {
     ReadGlobalSetting(Settings::values.bg_blue);
 
     ReadGlobalSetting(Settings::values.texture_filter);
+    ReadGlobalSetting(Settings::values.texture_sampling);
 
     if (global) {
         ReadBasicSetting(Settings::values.use_shader_jit);
@@ -1130,6 +1131,7 @@ void Config::SaveRendererValues() {
     WriteGlobalSetting(Settings::values.bg_blue);
 
     WriteGlobalSetting(Settings::values.texture_filter);
+    WriteGlobalSetting(Settings::values.texture_sampling);
 
     if (global) {
         WriteSetting(QStringLiteral("use_shader_jit"), Settings::values.use_shader_jit.GetValue(),

src/citra_qt/configuration/configure_cheats.cpp

@@ -11,8 +11,10 @@
 #include "core/cheats/gateway_cheat.h"
 #include "ui_configure_cheats.h"
 
-ConfigureCheats::ConfigureCheats(Core::System& system, u64 title_id_, QWidget* parent)
-    : QWidget(parent), ui(std::make_unique<Ui::ConfigureCheats>()), title_id{title_id_} {
+ConfigureCheats::ConfigureCheats(Cheats::CheatEngine& cheat_engine_, u64 title_id_, QWidget* parent)
+    : QWidget(parent),
+      ui(std::make_unique<Ui::ConfigureCheats>()), cheat_engine{cheat_engine_}, title_id{
+                                                                                    title_id_} {
     // Setup gui control settings
     ui->setupUi(this);
     ui->tableCheats->setColumnWidth(0, 30);
@@ -34,15 +36,14 @@ ConfigureCheats::ConfigureCheats(Core::System& system, u64 title_id_, QWidget* p
             [this] { SaveCheat(ui->tableCheats->currentRow()); });
     connect(ui->buttonDelete, &QPushButton::clicked, this, &ConfigureCheats::OnDeleteCheat);
 
-    cheat_engine = std::make_unique<Cheats::CheatEngine>(title_id, system);
-
+    cheat_engine.LoadCheatFile(title_id);
     LoadCheats();
 }
 
 ConfigureCheats::~ConfigureCheats() = default;
 
 void ConfigureCheats::LoadCheats() {
-    cheats = cheat_engine->GetCheats();
+    cheats = cheat_engine.GetCheats();
     const int cheats_count = static_cast<int>(cheats.size());
 
     ui->tableCheats->setRowCount(cheats_count);
@@ -106,12 +107,12 @@ bool ConfigureCheats::SaveCheat(int row) {
                                                         ui->textNotes->toPlainText().toStdString());
 
     if (newly_created) {
-        cheat_engine->AddCheat(cheat);
+        cheat_engine.AddCheat(std::move(cheat));
         newly_created = false;
     } else {
-        cheat_engine->UpdateCheat(row, cheat);
+        cheat_engine.UpdateCheat(row, std::move(cheat));
     }
-    cheat_engine->SaveCheatFile();
+    cheat_engine.SaveCheatFile(title_id);
 
     int previous_row = ui->tableCheats->currentRow();
     int previous_col = ui->tableCheats->currentColumn();
@@ -161,7 +162,7 @@ void ConfigureCheats::OnCheckChanged(int state) {
     const QCheckBox* checkbox = qobject_cast<QCheckBox*>(sender());
     int row = static_cast<int>(checkbox->property("row").toInt());
     cheats[row]->SetEnabled(state);
-    cheat_engine->SaveCheatFile();
+    cheat_engine.SaveCheatFile(title_id);
 }
 
 void ConfigureCheats::OnTextEdited() {
@@ -173,8 +174,8 @@ void ConfigureCheats::OnDeleteCheat() {
     if (newly_created) {
         newly_created = false;
     } else {
-        cheat_engine->RemoveCheat(ui->tableCheats->currentRow());
-        cheat_engine->SaveCheatFile();
+        cheat_engine.RemoveCheat(ui->tableCheats->currentRow());
+        cheat_engine.SaveCheatFile(title_id);
     }
 
     LoadCheats();

src/citra_qt/configuration/configure_cheats.h

@@ -5,6 +5,7 @@
 #pragma once
 
 #include <memory>
+#include <span>
 #include <QWidget>
 #include "common/common_types.h"
 
@@ -25,7 +26,8 @@ class ConfigureCheats : public QWidget {
     Q_OBJECT
 
 public:
-    explicit ConfigureCheats(Core::System& system, u64 title_id, QWidget* parent = nullptr);
+    explicit ConfigureCheats(Cheats::CheatEngine& cheat_engine, u64 title_id_,
+                             QWidget* parent = nullptr);
     ~ConfigureCheats();
     bool ApplyConfiguration();
 
@@ -58,9 +60,9 @@ private slots:
 
 private:
     std::unique_ptr<Ui::ConfigureCheats> ui;
-    std::vector<std::shared_ptr<Cheats::CheatBase>> cheats;
+    Cheats::CheatEngine& cheat_engine;
+    std::span<const std::shared_ptr<Cheats::CheatBase>> cheats;
     bool edited = false, newly_created = false;
     int last_row = -1, last_col = -1;
     u64 title_id;
-    std::unique_ptr<Cheats::CheatEngine> cheat_engine;
 };

src/citra_qt/configuration/configure_per_game.cpp

@@ -38,7 +38,7 @@ ConfigurePerGame::ConfigurePerGame(QWidget* parent, u64 title_id_, const QString
     graphics_tab = std::make_unique<ConfigureGraphics>(physical_devices, is_powered_on, this);
     system_tab = std::make_unique<ConfigureSystem>(system, this);
     debug_tab = std::make_unique<ConfigureDebug>(is_powered_on, this);
-    cheat_tab = std::make_unique<ConfigureCheats>(system, title_id, this);
+    cheat_tab = std::make_unique<ConfigureCheats>(system.CheatEngine(), title_id, this);
 
     ui->setupUi(this);
 

src/citra_qt/debugger/ipc/recorder.cpp

@@ -49,7 +49,7 @@ QString IPCRecorderWidget::GetStatusStr(const IPCDebugger::RequestRecord& record
     case IPCDebugger::RequestStatus::Handling:
         return tr("Handling");
     case IPCDebugger::RequestStatus::Handled:
-        if (record.translated_reply_cmdbuf[1] == RESULT_SUCCESS.raw) {
+        if (record.translated_reply_cmdbuf[1] == ResultSuccess.raw) {
             return tr("Success");
         }
         return tr("Error");
@@ -88,7 +88,7 @@ void IPCRecorderWidget::OnEntryUpdated(IPCDebugger::RequestRecord record) {
 
     if (record.status == IPCDebugger::RequestStatus::HLEUnimplemented ||
         (record.status == IPCDebugger::RequestStatus::Handled &&
-         record.translated_reply_cmdbuf[1] != RESULT_SUCCESS.raw)) { // Unimplemented / Error
+         record.translated_reply_cmdbuf[1] != ResultSuccess.raw)) { // Unimplemented / Error
 
         auto item = ui->main->invisibleRootItem()->child(row_id);
         for (int column = 0; column < item->columnCount(); ++column) {

src/citra_qt/main.cpp

@@ -229,6 +229,7 @@ GMainWindow::GMainWindow(Core::System& system_)
     SetDefaultUIGeometry();
     RestoreUIState();
 
+    ConnectAppEvents();
     ConnectMenuEvents();
     ConnectWidgetEvents();
 
@@ -761,6 +762,21 @@ void GMainWindow::OnAppFocusStateChanged(Qt::ApplicationState state) {
     }
 }
 
+bool GApplicationEventFilter::eventFilter(QObject* object, QEvent* event) {
+    if (event->type() == QEvent::FileOpen) {
+        emit FileOpen(static_cast<QFileOpenEvent*>(event));
+        return true;
+    }
+    return false;
+}
+
+void GMainWindow::ConnectAppEvents() {
+    const auto filter = new GApplicationEventFilter();
+    QGuiApplication::instance()->installEventFilter(filter);
+
+    connect(filter, &GApplicationEventFilter::FileOpen, this, &GMainWindow::OnFileOpen);
+}
+
 void GMainWindow::ConnectWidgetEvents() {
     connect(game_list, &GameList::GameChosen, this, &GMainWindow::OnGameListLoadFile);
     connect(game_list, &GameList::OpenDirectory, this, &GMainWindow::OnGameListOpenDirectory);
@@ -2752,6 +2768,10 @@ bool GMainWindow::DropAction(QDropEvent* event) {
     return true;
 }
 
+void GMainWindow::OnFileOpen(const QFileOpenEvent* event) {
+    BootGame(event->file());
+}
+
 void GMainWindow::dropEvent(QDropEvent* event) {
     DropAction(event);
 }

src/citra_qt/main.h

@@ -41,6 +41,7 @@ class LoadingScreen;
 class MicroProfileDialog;
 class MultiplayerState;
 class ProfilerWidget;
+class QFileOpenEvent;
 template <typename>
 class QFutureWatcher;
 class QLabel;
@@ -96,6 +97,8 @@ public:
     bool DropAction(QDropEvent* event);
     void AcceptDropEvent(QDropEvent* event);
 
+    void OnFileOpen(const QFileOpenEvent* event);
+
     void UninstallTitles(
         const std::vector<std::tuple<Service::FS::MediaType, u64, QString>>& titles);
 
@@ -137,6 +140,7 @@ private:
     void SyncMenuUISettings();
     void RestoreUIState();
 
+    void ConnectAppEvents();
     void ConnectWidgetEvents();
     void ConnectMenuEvents();
     void UpdateMenuState();
@@ -382,5 +386,15 @@ protected:
     void mouseReleaseEvent(QMouseEvent* event) override;
 };
 
+class GApplicationEventFilter : public QObject {
+    Q_OBJECT
+
+signals:
+    void FileOpen(const QFileOpenEvent* event);
+
+protected:
+    bool eventFilter(QObject* object, QEvent* event) override;
+};
+
 Q_DECLARE_METATYPE(std::size_t);
 Q_DECLARE_METATYPE(Service::AM::InstallStatus);

src/core/cheats/cheats.cpp

@@ -10,7 +10,6 @@
 #include "core/cheats/gateway_cheat.h"
 #include "core/core.h"
 #include "core/core_timing.h"
-#include "core/hle/kernel/process.h"
 
 namespace Cheats {
 
@@ -18,11 +17,11 @@ namespace Cheats {
 // we use the same value
 constexpr u64 run_interval_ticks = 50'000'000;
 
-CheatEngine::CheatEngine(u64 title_id_, Core::System& system_)
-    : system(system_), title_id{title_id_} {
-    LoadCheatFile();
+CheatEngine::CheatEngine(Core::System& system_) : system{system_} {}
+
+CheatEngine::~CheatEngine() {
     if (system.IsPoweredOn()) {
-        Connect();
+        system.CoreTiming().UnscheduleEvent(event, 0);
     }
 }
 
@@ -33,24 +32,18 @@ void CheatEngine::Connect() {
     system.CoreTiming().ScheduleEvent(run_interval_ticks, event);
 }
 
-CheatEngine::~CheatEngine() {
-    if (system.IsPoweredOn()) {
-        system.CoreTiming().UnscheduleEvent(event, 0);
-    }
-}
-
-std::vector<std::shared_ptr<CheatBase>> CheatEngine::GetCheats() const {
-    std::shared_lock<std::shared_mutex> lock(cheats_list_mutex);
+std::span<const std::shared_ptr<CheatBase>> CheatEngine::GetCheats() const {
+    std::shared_lock lock{cheats_list_mutex};
     return cheats_list;
 }
 
-void CheatEngine::AddCheat(const std::shared_ptr<CheatBase>& cheat) {
-    std::unique_lock<std::shared_mutex> lock(cheats_list_mutex);
-    cheats_list.push_back(cheat);
+void CheatEngine::AddCheat(std::shared_ptr<CheatBase>&& cheat) {
+    std::unique_lock lock{cheats_list_mutex};
+    cheats_list.push_back(std::move(cheat));
 }
 
 void CheatEngine::RemoveCheat(std::size_t index) {
-    std::unique_lock<std::shared_mutex> lock(cheats_list_mutex);
+    std::unique_lock lock{cheats_list_mutex};
     if (index < 0 || index >= cheats_list.size()) {
         LOG_ERROR(Core_Cheats, "Invalid index {}", index);
         return;
@@ -58,16 +51,16 @@ void CheatEngine::RemoveCheat(std::size_t index) {
     cheats_list.erase(cheats_list.begin() + index);
 }
 
-void CheatEngine::UpdateCheat(std::size_t index, const std::shared_ptr<CheatBase>& new_cheat) {
-    std::unique_lock<std::shared_mutex> lock(cheats_list_mutex);
+void CheatEngine::UpdateCheat(std::size_t index, std::shared_ptr<CheatBase>&& new_cheat) {
+    std::unique_lock lock{cheats_list_mutex};
     if (index < 0 || index >= cheats_list.size()) {
         LOG_ERROR(Core_Cheats, "Invalid index {}", index);
         return;
     }
-    cheats_list[index] = new_cheat;
+    cheats_list[index] = std::move(new_cheat);
 }
 
-void CheatEngine::SaveCheatFile() const {
+void CheatEngine::SaveCheatFile(u64 title_id) const {
     const std::string cheat_dir = FileUtil::GetUserPath(FileUtil::UserPath::CheatsDir);
     const std::string filepath = fmt::format("{}{:016X}.txt", cheat_dir, title_id);
 
@@ -82,7 +75,14 @@ void CheatEngine::SaveCheatFile() const {
     }
 }
 
-void CheatEngine::LoadCheatFile() {
+void CheatEngine::LoadCheatFile(u64 title_id) {
+    {
+        std::unique_lock lock{cheats_list_mutex};
+        if (loaded_title_id.has_value() && loaded_title_id == title_id) {
+            return;
+        }
+    }
+
     const std::string cheat_dir = FileUtil::GetUserPath(FileUtil::UserPath::CheatsDir);
     const std::string filepath = fmt::format("{}{:016X}.txt", cheat_dir, title_id);
 
@@ -90,20 +90,22 @@ void CheatEngine::LoadCheatFile() {
         FileUtil::CreateDir(cheat_dir);
     }
 
-    if (!FileUtil::Exists(filepath))
+    if (!FileUtil::Exists(filepath)) {
         return;
+    }
 
     auto gateway_cheats = GatewayCheat::LoadFile(filepath);
     {
-        std::unique_lock<std::shared_mutex> lock(cheats_list_mutex);
-        std::move(gateway_cheats.begin(), gateway_cheats.end(), std::back_inserter(cheats_list));
+        std::unique_lock lock{cheats_list_mutex};
+        loaded_title_id = title_id;
+        cheats_list = std::move(gateway_cheats);
     }
 }
 
 void CheatEngine::RunCallback([[maybe_unused]] std::uintptr_t user_data, s64 cycles_late) {
     {
-        std::shared_lock<std::shared_mutex> lock(cheats_list_mutex);
-        for (auto& cheat : cheats_list) {
+        std::shared_lock lock{cheats_list_mutex};
+        for (const auto& cheat : cheats_list) {
             if (cheat->IsEnabled()) {
                 cheat->Execute(system);
             }

src/core/cheats/cheats.h

@@ -5,7 +5,9 @@
 #pragma once
 
 #include <memory>
+#include <optional>
 #include <shared_mutex>
+#include <span>
 #include <vector>
 #include "common/common_types.h"
 
@@ -24,22 +26,39 @@ class CheatBase;
 
 class CheatEngine {
 public:
-    explicit CheatEngine(u64 title_id_, Core::System& system);
+    explicit CheatEngine(Core::System& system);
     ~CheatEngine();
+
+    /// Registers the cheat execution callback.
     void Connect();
-    std::vector<std::shared_ptr<CheatBase>> GetCheats() const;
-    void AddCheat(const std::shared_ptr<CheatBase>& cheat);
+
+    /// Returns a span of the currently active cheats.
+    std::span<const std::shared_ptr<CheatBase>> GetCheats() const;
+
+    /// Adds a cheat to the cheat engine.
+    void AddCheat(std::shared_ptr<CheatBase>&& cheat);
+
+    /// Removes a cheat at the specified index in the cheats list.
     void RemoveCheat(std::size_t index);
-    void UpdateCheat(std::size_t index, const std::shared_ptr<CheatBase>& new_cheat);
-    void SaveCheatFile() const;
+
+    /// Updates a cheat at the specified index in the cheats list.
+    void UpdateCheat(std::size_t index, std::shared_ptr<CheatBase>&& new_cheat);
+
+    /// Loads the cheat file from disk for the specified title id.
+    void LoadCheatFile(u64 title_id);
+
+    /// Saves currently active cheats to file for the specified title id.
+    void SaveCheatFile(u64 title_id) const;
 
 private:
-    void LoadCheatFile();
+    /// The cheat execution callback.
     void RunCallback(std::uintptr_t user_data, s64 cycles_late);
+
+private:
+    Core::System& system;
+    Core::TimingEventType* event;
+    std::optional<u64> loaded_title_id;
     std::vector<std::shared_ptr<CheatBase>> cheats_list;
     mutable std::shared_mutex cheats_list_mutex;
-    Core::TimingEventType* event;
-    Core::System& system;
-    u64 title_id;
 };
 } // namespace Cheats

src/core/cheats/gateway_cheat.cpp

@@ -472,8 +472,8 @@ std::string GatewayCheat::ToString() const {
     return result;
 }
 
-std::vector<std::unique_ptr<CheatBase>> GatewayCheat::LoadFile(const std::string& filepath) {
-    std::vector<std::unique_ptr<CheatBase>> cheats;
+std::vector<std::shared_ptr<CheatBase>> GatewayCheat::LoadFile(const std::string& filepath) {
+    std::vector<std::shared_ptr<CheatBase>> cheats;
 
     boost::iostreams::stream<boost::iostreams::file_descriptor_source> file;
     FileUtil::OpenFStream<std::ios_base::in>(file, filepath);
@@ -493,7 +493,7 @@ std::vector<std::unique_ptr<CheatBase>> GatewayCheat::LoadFile(const std::string
         line = Common::StripSpaces(line); // remove spaces at front and end
         if (line.length() >= 2 && line.front() == '[') {
             if (!cheat_lines.empty()) {
-                cheats.push_back(std::make_unique<GatewayCheat>(name, cheat_lines, comments));
+                cheats.push_back(std::make_shared<GatewayCheat>(name, cheat_lines, comments));
                 cheats.back()->SetEnabled(enabled);
                 enabled = false;
             }
@@ -511,7 +511,7 @@ std::vector<std::unique_ptr<CheatBase>> GatewayCheat::LoadFile(const std::string
         }
     }
     if (!cheat_lines.empty()) {
-        cheats.push_back(std::make_unique<GatewayCheat>(name, cheat_lines, comments));
+        cheats.push_back(std::make_shared<GatewayCheat>(name, cheat_lines, comments));
         cheats.back()->SetEnabled(enabled);
     }
     return cheats;

src/core/cheats/gateway_cheat.h

@@ -77,7 +77,7 @@ public:
     ///     (there might be multiple lines of those hex numbers)
     ///     Comment lines start with a '*'
     /// This function will pares the file for such structures
-    static std::vector<std::unique_ptr<CheatBase>> LoadFile(const std::string& filepath);
+    static std::vector<std::shared_ptr<CheatBase>> LoadFile(const std::string& filepath);
 
 private:
     std::atomic<bool> enabled = false;

src/core/core.cpp

@@ -72,7 +72,7 @@ Core::Timing& Global() {
     return System::GetInstance().CoreTiming();
 }
 
-System::System() : movie{*this} {}
+System::System() : movie{*this}, cheat_engine{*this} {}
 
 System::~System() = default;
 
@@ -320,7 +320,10 @@ System::ResultStatus System::Load(Frontend::EmuWindow& emu_window, const std::st
         LOG_ERROR(Core, "Failed to find title id for ROM (Error {})",
                   static_cast<u32>(load_result));
     }
-    cheat_engine = std::make_unique<Cheats::CheatEngine>(title_id, *this);
+
+    cheat_engine.LoadCheatFile(title_id);
+    cheat_engine.Connect();
+
     perf_stats = std::make_unique<PerfStats>(title_id);
 
     if (Settings::values.dump_textures) {
@@ -502,11 +505,11 @@ const Memory::MemorySystem& System::Memory() const {
 }
 
 Cheats::CheatEngine& System::CheatEngine() {
-    return *cheat_engine;
+    return cheat_engine;
 }
 
 const Cheats::CheatEngine& System::CheatEngine() const {
-    return *cheat_engine;
+    return cheat_engine;
 }
 
 void System::RegisterVideoDumper(std::shared_ptr<VideoDumper::Backend> dumper) {
@@ -560,7 +563,6 @@ void System::Shutdown(bool is_deserializing) {
     if (!is_deserializing) {
         GDBStub::Shutdown();
         perf_stats.reset();
-        cheat_engine.reset();
         app_loader.reset();
     }
     custom_tex_manager.reset();
@@ -627,7 +629,9 @@ void System::ApplySettings() {
     GDBStub::ToggleServer(Settings::values.use_gdbstub.GetValue());
 
     if (gpu) {
+#ifndef ANDROID
         gpu->Renderer().UpdateCurrentFramebufferLayout();
+#endif
         auto& settings = gpu->Renderer().Settings();
         settings.bg_color_update_requested = true;
         settings.shader_update_requested = true;
@@ -664,9 +668,11 @@ void System::ApplySettings() {
         Service::MIC::ReloadMic(*this);
     }
 
-    Service::PLGLDR::PLG_LDR::SetEnabled(Settings::values.plugin_loader_enabled.GetValue());
-    Service::PLGLDR::PLG_LDR::SetAllowGameChangeState(
-        Settings::values.allow_plugin_loader.GetValue());
+    auto plg_ldr = Service::PLGLDR::GetService(*this);
+    if (plg_ldr) {
+        plg_ldr->SetEnabled(Settings::values.plugin_loader_enabled.GetValue());
+        plg_ldr->SetAllowGameChangeState(Settings::values.allow_plugin_loader.GetValue());
+    }
 }
 
 template <class Archive>
@@ -718,7 +724,7 @@ void System::serialize(Archive& ar, const unsigned int file_version) {
     if (Archive::is_loading::value) {
         timing->UnlockEventQueue();
         memory->SetDSP(*dsp_core);
-        cheat_engine->Connect();
+        cheat_engine.Connect();
         gpu->Sync();
 
         // Re-register gpu callback, because gsp service changed after service_manager got

src/core/core.h

@@ -11,6 +11,7 @@
 #include <boost/serialization/version.hpp>
 #include "common/common_types.h"
 #include "core/arm/arm_interface.h"
+#include "core/cheats/cheats.h"
 #include "core/movie.h"
 #include "core/perf_stats.h"
 
@@ -48,10 +49,6 @@ struct New3dsHwCapabilities;
 enum class MemoryMode : u8;
 } // namespace Kernel
 
-namespace Cheats {
-class CheatEngine;
-}
-
 namespace VideoDumper {
 class Backend;
 }
@@ -401,7 +398,7 @@ private:
     Core::Movie movie;
 
     /// Cheats manager
-    std::unique_ptr<Cheats::CheatEngine> cheat_engine;
+    Cheats::CheatEngine cheat_engine;
 
     /// Video dumper backend
     std::shared_ptr<VideoDumper::Backend> video_dumper;

src/core/file_sys/archive_backend.h

@@ -127,7 +127,7 @@ public:
      * @param path Path relative to the archive
      * @return Result of the operation
      */
-    virtual ResultCode DeleteFile(const Path& path) const = 0;
+    virtual Result DeleteFile(const Path& path) const = 0;
 
     /**
      * Rename a File specified by its path
@@ -135,21 +135,21 @@ public:
      * @param dest_path Destination path relative to the archive
      * @return Result of the operation
      */
-    virtual ResultCode RenameFile(const Path& src_path, const Path& dest_path) const = 0;
+    virtual Result RenameFile(const Path& src_path, const Path& dest_path) const = 0;
 
     /**
      * Delete a directory specified by its path
      * @param path Path relative to the archive
      * @return Result of the operation
      */
-    virtual ResultCode DeleteDirectory(const Path& path) const = 0;
+    virtual Result DeleteDirectory(const Path& path) const = 0;
 
     /**
      * Delete a directory specified by its path and anything under it
      * @param path Path relative to the archive
      * @return Result of the operation
      */
-    virtual ResultCode DeleteDirectoryRecursively(const Path& path) const = 0;
+    virtual Result DeleteDirectoryRecursively(const Path& path) const = 0;
 
     /**
      * Create a file specified by its path
@@ -157,14 +157,14 @@ public:
      * @param size The size of the new file, filled with zeroes
      * @return Result of the operation
      */
-    virtual ResultCode CreateFile(const Path& path, u64 size) const = 0;
+    virtual Result CreateFile(const Path& path, u64 size) const = 0;
 
     /**
      * Create a directory specified by its path
      * @param path Path relative to the archive
      * @return Result of the operation
      */
-    virtual ResultCode CreateDirectory(const Path& path) const = 0;
+    virtual Result CreateDirectory(const Path& path) const = 0;
 
     /**
      * Rename a Directory specified by its path
@@ -172,7 +172,7 @@ public:
      * @param dest_path Destination path relative to the archive
      * @return Result of the operation
      */
-    virtual ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const = 0;
+    virtual Result RenameDirectory(const Path& src_path, const Path& dest_path) const = 0;
 
     /**
      * Open a directory specified by its path
@@ -229,10 +229,10 @@ public:
      * @param path Path to the archive
      * @param format_info Format information for the new archive
      * @param program_id the program ID of the client that requests the operation
-     * @return ResultCode of the operation, 0 on success
+     * @return Result of the operation, 0 on success
      */
-    virtual ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
-                              u64 program_id) = 0;
+    virtual Result Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                          u64 program_id) = 0;
 
     /**
      * Retrieves the format info about the archive with the specified path

src/core/file_sys/archive_extsavedata.cpp

@@ -40,7 +40,7 @@ public:
     ResultVal<std::size_t> Write(u64 offset, std::size_t length, bool flush,
                                  const u8* buffer) override {
         if (offset > size) {
-            return ERR_WRITE_BEYOND_END;
+            return ResultWriteBeyondEnd;
         } else if (offset == size) {
             return 0ULL;
         }
@@ -108,17 +108,17 @@ public:
 
         if (!path_parser.IsValid()) {
             LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-            return ERROR_INVALID_PATH;
+            return ResultInvalidPath;
         }
 
         if (mode.hex == 0) {
             LOG_ERROR(Service_FS, "Empty open mode");
-            return ERROR_UNSUPPORTED_OPEN_FLAGS;
+            return ResultUnsupportedOpenFlags;
         }
 
         if (mode.create_flag) {
             LOG_ERROR(Service_FS, "Create flag is not supported");
-            return ERROR_UNSUPPORTED_OPEN_FLAGS;
+            return ResultUnsupportedOpenFlags;
         }
 
         const auto full_path = path_parser.BuildHostPath(mount_point);
@@ -126,17 +126,17 @@ public:
         switch (path_parser.GetHostStatus(mount_point)) {
         case PathParser::InvalidMountPoint:
             LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-            return ERROR_FILE_NOT_FOUND;
+            return ResultFileNotFound;
         case PathParser::PathNotFound:
             LOG_ERROR(Service_FS, "Path not found {}", full_path);
-            return ERROR_PATH_NOT_FOUND;
+            return ResultPathNotFound;
         case PathParser::FileInPath:
         case PathParser::DirectoryFound:
             LOG_ERROR(Service_FS, "Unexpected file or directory in {}", full_path);
-            return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
+            return ResultUnexpectedFileOrDirectory;
         case PathParser::NotFound:
             LOG_ERROR(Service_FS, "{} not found", full_path);
-            return ERROR_FILE_NOT_FOUND;
+            return ResultFileNotFound;
         case PathParser::FileFound:
             break; // Expected 'success' case
         }
@@ -144,7 +144,7 @@ public:
         FileUtil::IOFile file(full_path, "r+b");
         if (!file.IsOpen()) {
             LOG_CRITICAL(Service_FS, "(unreachable) Unknown error opening {}", full_path);
-            return ERROR_FILE_NOT_FOUND;
+            return ResultFileNotFound;
         }
 
         Mode rwmode;
@@ -155,10 +155,10 @@ public:
                                                  std::move(delay_generator));
     }
 
-    ResultCode CreateFile(const Path& path, u64 size) const override {
+    Result CreateFile(const Path& path, u64 size) const override {
         if (size == 0) {
             LOG_ERROR(Service_FS, "Zero-size file is not supported");
-            return ERROR_UNSUPPORTED_OPEN_FLAGS;
+            return ResultUnsupportedOpenFlags;
         }
         return SaveDataArchive::CreateFile(path, size);
     }
@@ -250,18 +250,18 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_ExtSaveData::Open(cons
         // TODO(Subv): Verify the archive behavior of SharedExtSaveData compared to ExtSaveData.
         // ExtSaveData seems to return FS_NotFound (120) when the archive doesn't exist.
         if (type != ExtSaveDataType::Shared) {
-            return ERR_NOT_FOUND_INVALID_STATE;
+            return ResultNotFoundInvalidState;
         } else {
-            return ERR_NOT_FORMATTED;
+            return ResultNotFormatted;
         }
     }
     std::unique_ptr<DelayGenerator> delay_generator = std::make_unique<ExtSaveDataDelayGenerator>();
     return std::make_unique<ExtSaveDataArchive>(fullpath, std::move(delay_generator));
 }
 
-ResultCode ArchiveFactory_ExtSaveData::Format(const Path& path,
-                                              const FileSys::ArchiveFormatInfo& format_info,
-                                              u64 program_id) {
+Result ArchiveFactory_ExtSaveData::Format(const Path& path,
+                                          const FileSys::ArchiveFormatInfo& format_info,
+                                          u64 program_id) {
     auto corrected_path = GetCorrectedPath(path);
 
     // These folders are always created with the ExtSaveData
@@ -276,11 +276,11 @@ ResultCode ArchiveFactory_ExtSaveData::Format(const Path& path,
 
     if (!file.IsOpen()) {
         // TODO(Subv): Find the correct error code
-        return RESULT_UNKNOWN;
+        return ResultUnknown;
     }
 
     file.WriteBytes(&format_info, sizeof(format_info));
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 ResultVal<ArchiveFormatInfo> ArchiveFactory_ExtSaveData::GetFormatInfo(const Path& path,
@@ -291,7 +291,7 @@ ResultVal<ArchiveFormatInfo> ArchiveFactory_ExtSaveData::GetFormatInfo(const Pat
     if (!file.IsOpen()) {
         LOG_ERROR(Service_FS, "Could not open metadata information for archive");
         // TODO(Subv): Verify error code
-        return ERR_NOT_FORMATTED;
+        return ResultNotFormatted;
     }
 
     ArchiveFormatInfo info = {};

src/core/file_sys/archive_extsavedata.h

@@ -31,8 +31,8 @@ public:
     }
 
     ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path, u64 program_id) override;
-    ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
-                      u64 program_id) override;
+    Result Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                  u64 program_id) override;
     ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path, u64 program_id) const override;
 
     const std::string& GetMountPoint() const {

src/core/file_sys/archive_ncch.cpp

@@ -73,13 +73,13 @@ ResultVal<std::unique_ptr<FileBackend>> NCCHArchive::OpenFile(const Path& path,
                                                               const Mode& mode) const {
     if (path.GetType() != LowPathType::Binary) {
         LOG_ERROR(Service_FS, "Path need to be Binary");
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     std::vector<u8> binary = path.AsBinary();
     if (binary.size() != sizeof(NCCHFilePath)) {
         LOG_ERROR(Service_FS, "Wrong path size {}", binary.size());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     NCCHFilePath openfile_path;
@@ -174,63 +174,63 @@ ResultVal<std::unique_ptr<FileBackend>> NCCHArchive::OpenFile(const Path& path,
             return std::make_unique<IVFCFileInMemory>(std::move(archive_data), romfs_offset,
                                                       romfs_size, std::move(delay_generator));
         }
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     }
 
     return file;
 }
 
-ResultCode NCCHArchive::DeleteFile(const Path& path) const {
+Result NCCHArchive::DeleteFile(const Path& path) const {
     LOG_CRITICAL(Service_FS, "Attempted to delete a file from an NCCH archive ({}).", GetName());
     // TODO(Subv): Verify error code
-    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, ErrorSummary::Canceled,
-                      ErrorLevel::Status);
+    return Result(ErrorDescription::NoData, ErrorModule::FS, ErrorSummary::Canceled,
+                  ErrorLevel::Status);
 }
 
-ResultCode NCCHArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
+Result NCCHArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
     LOG_CRITICAL(Service_FS, "Attempted to rename a file within an NCCH archive ({}).", GetName());
     // TODO(wwylele): Use correct error code
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
-ResultCode NCCHArchive::DeleteDirectory(const Path& path) const {
+Result NCCHArchive::DeleteDirectory(const Path& path) const {
     LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an NCCH archive ({}).",
                  GetName());
     // TODO(wwylele): Use correct error code
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
-ResultCode NCCHArchive::DeleteDirectoryRecursively(const Path& path) const {
+Result NCCHArchive::DeleteDirectoryRecursively(const Path& path) const {
     LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an NCCH archive ({}).",
                  GetName());
     // TODO(wwylele): Use correct error code
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
-ResultCode NCCHArchive::CreateFile(const Path& path, u64 size) const {
+Result NCCHArchive::CreateFile(const Path& path, u64 size) const {
     LOG_CRITICAL(Service_FS, "Attempted to create a file in an NCCH archive ({}).", GetName());
     // TODO: Verify error code
-    return ResultCode(ErrorDescription::NotAuthorized, ErrorModule::FS, ErrorSummary::NotSupported,
-                      ErrorLevel::Permanent);
+    return Result(ErrorDescription::NotAuthorized, ErrorModule::FS, ErrorSummary::NotSupported,
+                  ErrorLevel::Permanent);
 }
 
-ResultCode NCCHArchive::CreateDirectory(const Path& path) const {
+Result NCCHArchive::CreateDirectory(const Path& path) const {
     LOG_CRITICAL(Service_FS, "Attempted to create a directory in an NCCH archive ({}).", GetName());
     // TODO(wwylele): Use correct error code
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
-ResultCode NCCHArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
+Result NCCHArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
     LOG_CRITICAL(Service_FS, "Attempted to rename a file within an NCCH archive ({}).", GetName());
     // TODO(wwylele): Use correct error code
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
 ResultVal<std::unique_ptr<DirectoryBackend>> NCCHArchive::OpenDirectory(const Path& path) const {
     LOG_CRITICAL(Service_FS, "Attempted to open a directory within an NCCH archive ({}).",
                  GetName().c_str());
     // TODO(shinyquagsire23): Use correct error code
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
 u64 NCCHArchive::GetFreeBytes() const {
@@ -276,13 +276,13 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_NCCH::Open(const Path&
                                                                      u64 program_id) {
     if (path.GetType() != LowPathType::Binary) {
         LOG_ERROR(Service_FS, "Path need to be Binary");
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     std::vector<u8> binary = path.AsBinary();
     if (binary.size() != sizeof(NCCHArchivePath)) {
         LOG_ERROR(Service_FS, "Wrong path size {}", binary.size());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     NCCHArchivePath open_path;
@@ -292,20 +292,19 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_NCCH::Open(const Path&
         open_path.tid, static_cast<Service::FS::MediaType>(open_path.media_type & 0xFF));
 }
 
-ResultCode ArchiveFactory_NCCH::Format(const Path& path,
-                                       const FileSys::ArchiveFormatInfo& format_info,
-                                       u64 program_id) {
+Result ArchiveFactory_NCCH::Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                                   u64 program_id) {
     LOG_ERROR(Service_FS, "Attempted to format a NCCH archive.");
     // TODO: Verify error code
-    return ResultCode(ErrorDescription::NotAuthorized, ErrorModule::FS, ErrorSummary::NotSupported,
-                      ErrorLevel::Permanent);
+    return Result(ErrorDescription::NotAuthorized, ErrorModule::FS, ErrorSummary::NotSupported,
+                  ErrorLevel::Permanent);
 }
 
 ResultVal<ArchiveFormatInfo> ArchiveFactory_NCCH::GetFormatInfo(const Path& path,
                                                                 u64 program_id) const {
     // TODO(Subv): Implement
     LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
 } // namespace FileSys

src/core/file_sys/archive_ncch.h

@@ -50,13 +50,13 @@ public:
 
     ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path,
                                                      const Mode& mode) const override;
-    ResultCode DeleteFile(const Path& path) const override;
-    ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
-    ResultCode DeleteDirectory(const Path& path) const override;
-    ResultCode DeleteDirectoryRecursively(const Path& path) const override;
-    ResultCode CreateFile(const Path& path, u64 size) const override;
-    ResultCode CreateDirectory(const Path& path) const override;
-    ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
+    Result DeleteFile(const Path& path) const override;
+    Result RenameFile(const Path& src_path, const Path& dest_path) const override;
+    Result DeleteDirectory(const Path& path) const override;
+    Result DeleteDirectoryRecursively(const Path& path) const override;
+    Result CreateFile(const Path& path, u64 size) const override;
+    Result CreateDirectory(const Path& path) const override;
+    Result RenameDirectory(const Path& src_path, const Path& dest_path) const override;
     ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) const override;
     u64 GetFreeBytes() const override;
 
@@ -114,8 +114,8 @@ public:
     }
 
     ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path, u64 program_id) override;
-    ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
-                      u64 program_id) override;
+    Result Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                  u64 program_id) override;
     ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path, u64 program_id) const override;
 
 private:

src/core/file_sys/archive_other_savedata.cpp

@@ -25,14 +25,14 @@ template <typename T>
 ResultVal<std::tuple<MediaType, u64>> ParsePath(const Path& path, T program_id_reader) {
     if (path.GetType() != LowPathType::Binary) {
         LOG_ERROR(Service_FS, "Wrong path type {}", path.GetType());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     std::vector<u8> vec_data = path.AsBinary();
 
     if (vec_data.size() != 12) {
         LOG_ERROR(Service_FS, "Wrong path length {}", vec_data.size());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const u32* data = reinterpret_cast<const u32*>(vec_data.data());
@@ -42,7 +42,7 @@ ResultVal<std::tuple<MediaType, u64>> ParsePath(const Path& path, T program_id_r
         LOG_ERROR(Service_FS, "Unsupported media type {}", media_type);
 
         // Note: this is strange, but the error code was verified with a real 3DS
-        return ERROR_UNSUPPORTED_OPEN_FLAGS;
+        return ResultUnsupportedOpenFlags;
     }
 
     return std::make_tuple(media_type, program_id_reader(data));
@@ -72,16 +72,17 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_OtherSaveDataPermitted
 
     if (media_type == MediaType::GameCard) {
         LOG_WARNING(Service_FS, "(stubbed) Unimplemented media type GameCard");
-        return ERROR_GAMECARD_NOT_INSERTED;
+        return ResultGamecardNotInserted;
     }
 
     return sd_savedata_source->Open(program_id);
 }
 
-ResultCode ArchiveFactory_OtherSaveDataPermitted::Format(
-    const Path& path, const FileSys::ArchiveFormatInfo& format_info, u64 program_id) {
+Result ArchiveFactory_OtherSaveDataPermitted::Format(const Path& path,
+                                                     const FileSys::ArchiveFormatInfo& format_info,
+                                                     u64 program_id) {
     LOG_ERROR(Service_FS, "Attempted to format a OtherSaveDataPermitted archive.");
-    return ERROR_INVALID_PATH;
+    return ResultInvalidPath;
 }
 
 ResultVal<ArchiveFormatInfo> ArchiveFactory_OtherSaveDataPermitted::GetFormatInfo(
@@ -92,7 +93,7 @@ ResultVal<ArchiveFormatInfo> ArchiveFactory_OtherSaveDataPermitted::GetFormatInf
 
     if (media_type == MediaType::GameCard) {
         LOG_WARNING(Service_FS, "(stubbed) Unimplemented media type GameCard");
-        return ERROR_GAMECARD_NOT_INSERTED;
+        return ResultGamecardNotInserted;
     }
 
     return sd_savedata_source->GetFormatInfo(program_id);
@@ -110,21 +111,22 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_OtherSaveDataGeneral::
 
     if (media_type == MediaType::GameCard) {
         LOG_WARNING(Service_FS, "(stubbed) Unimplemented media type GameCard");
-        return ERROR_GAMECARD_NOT_INSERTED;
+        return ResultGamecardNotInserted;
     }
 
     return sd_savedata_source->Open(program_id);
 }
 
-ResultCode ArchiveFactory_OtherSaveDataGeneral::Format(
-    const Path& path, const FileSys::ArchiveFormatInfo& format_info, u64 /*client_program_id*/) {
+Result ArchiveFactory_OtherSaveDataGeneral::Format(const Path& path,
+                                                   const FileSys::ArchiveFormatInfo& format_info,
+                                                   u64 /*client_program_id*/) {
     MediaType media_type;
     u64 program_id;
     CASCADE_RESULT(std::tie(media_type, program_id), ParsePathGeneral(path));
 
     if (media_type == MediaType::GameCard) {
         LOG_WARNING(Service_FS, "(stubbed) Unimplemented media type GameCard");
-        return ERROR_GAMECARD_NOT_INSERTED;
+        return ResultGamecardNotInserted;
     }
 
     return sd_savedata_source->Format(program_id, format_info);
@@ -138,7 +140,7 @@ ResultVal<ArchiveFormatInfo> ArchiveFactory_OtherSaveDataGeneral::GetFormatInfo(
 
     if (media_type == MediaType::GameCard) {
         LOG_WARNING(Service_FS, "(stubbed) Unimplemented media type GameCard");
-        return ERROR_GAMECARD_NOT_INSERTED;
+        return ResultGamecardNotInserted;
     }
 
     return sd_savedata_source->GetFormatInfo(program_id);

src/core/file_sys/archive_other_savedata.h

@@ -22,8 +22,8 @@ public:
     }
 
     ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path, u64 program_id) override;
-    ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
-                      u64 program_id) override;
+    Result Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                  u64 program_id) override;
     ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path, u64 program_id) const override;
 
 private:
@@ -49,8 +49,8 @@ public:
     }
 
     ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path, u64 program_id) override;
-    ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
-                      u64 program_id) override;
+    Result Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                  u64 program_id) override;
     ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path, u64 program_id) const override;
 
 private:

src/core/file_sys/archive_savedata.cpp

@@ -21,9 +21,9 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SaveData::Open(const P
     return sd_savedata_source->Open(program_id);
 }
 
-ResultCode ArchiveFactory_SaveData::Format(const Path& path,
-                                           const FileSys::ArchiveFormatInfo& format_info,
-                                           u64 program_id) {
+Result ArchiveFactory_SaveData::Format(const Path& path,
+                                       const FileSys::ArchiveFormatInfo& format_info,
+                                       u64 program_id) {
     return sd_savedata_source->Format(program_id, format_info);
 }
 

src/core/file_sys/archive_savedata.h

@@ -20,8 +20,8 @@ public:
     }
 
     ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path, u64 program_id) override;
-    ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
-                      u64 program_id) override;
+    Result Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                  u64 program_id) override;
 
     ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path, u64 program_id) const override;
 

src/core/file_sys/archive_sdmc.cpp

@@ -62,17 +62,17 @@ ResultVal<std::unique_ptr<FileBackend>> SDMCArchive::OpenFileBase(const Path& pa
 
     if (!path_parser.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     if (mode.hex == 0) {
         LOG_ERROR(Service_FS, "Empty open mode");
-        return ERROR_INVALID_OPEN_FLAGS;
+        return ResultInvalidOpenFlags;
     }
 
     if (mode.create_flag && !mode.write_flag) {
         LOG_ERROR(Service_FS, "Create flag set but write flag not set");
-        return ERROR_INVALID_OPEN_FLAGS;
+        return ResultInvalidOpenFlags;
     }
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
@@ -80,19 +80,19 @@ ResultVal<std::unique_ptr<FileBackend>> SDMCArchive::OpenFileBase(const Path& pa
     switch (path_parser.GetHostStatus(mount_point)) {
     case PathParser::InvalidMountPoint:
         LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     case PathParser::PathNotFound:
     case PathParser::FileInPath:
         LOG_ERROR(Service_FS, "Path not found {}", full_path);
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     case PathParser::DirectoryFound:
         LOG_ERROR(Service_FS, "{} is not a file", full_path);
-        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC;
+        return ResultUnexpectedFileOrDirectorySdmc;
     case PathParser::NotFound:
         if (!mode.create_flag) {
             LOG_ERROR(Service_FS, "Non-existing file {} can't be open without mode create.",
                       full_path);
-            return ERROR_NOT_FOUND;
+            return ResultNotFound;
         } else {
             // Create the file
             FileUtil::CreateEmptyFile(full_path);
@@ -105,19 +105,19 @@ ResultVal<std::unique_ptr<FileBackend>> SDMCArchive::OpenFileBase(const Path& pa
     FileUtil::IOFile file(full_path, mode.write_flag ? "r+b" : "rb");
     if (!file.IsOpen()) {
         LOG_CRITICAL(Service_FS, "Error opening {}: {}", full_path, Common::GetLastErrorMsg());
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     }
 
     std::unique_ptr<DelayGenerator> delay_generator = std::make_unique<SDMCDelayGenerator>();
     return std::make_unique<DiskFile>(std::move(file), mode, std::move(delay_generator));
 }
 
-ResultCode SDMCArchive::DeleteFile(const Path& path) const {
+Result SDMCArchive::DeleteFile(const Path& path) const {
     const PathParser path_parser(path);
 
     if (!path_parser.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
@@ -125,110 +125,109 @@ ResultCode SDMCArchive::DeleteFile(const Path& path) const {
     switch (path_parser.GetHostStatus(mount_point)) {
     case PathParser::InvalidMountPoint:
         LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     case PathParser::PathNotFound:
     case PathParser::FileInPath:
     case PathParser::NotFound:
         LOG_DEBUG(Service_FS, "{} not found", full_path);
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     case PathParser::DirectoryFound:
         LOG_ERROR(Service_FS, "{} is not a file", full_path);
-        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC;
+        return ResultUnexpectedFileOrDirectorySdmc;
     case PathParser::FileFound:
         break; // Expected 'success' case
     }
 
     if (FileUtil::Delete(full_path)) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     LOG_CRITICAL(Service_FS, "(unreachable) Unknown error deleting {}", full_path);
-    return ERROR_NOT_FOUND;
+    return ResultNotFound;
 }
 
-ResultCode SDMCArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
+Result SDMCArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
     const PathParser path_parser_src(src_path);
 
     // TODO: Verify these return codes with HW
     if (!path_parser_src.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid src path {}", src_path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const PathParser path_parser_dest(dest_path);
 
     if (!path_parser_dest.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid dest path {}", dest_path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const auto src_path_full = path_parser_src.BuildHostPath(mount_point);
     const auto dest_path_full = path_parser_dest.BuildHostPath(mount_point);
 
     if (FileUtil::Rename(src_path_full, dest_path_full)) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     // TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
     // exist or similar. Verify.
-    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
-                      ErrorSummary::NothingHappened, ErrorLevel::Status);
+    return Result(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                  ErrorSummary::NothingHappened, ErrorLevel::Status);
 }
 
 template <typename T>
-static ResultCode DeleteDirectoryHelper(const Path& path, const std::string& mount_point,
-                                        T deleter) {
+static Result DeleteDirectoryHelper(const Path& path, const std::string& mount_point, T deleter) {
     const PathParser path_parser(path);
 
     if (!path_parser.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     if (path_parser.IsRootDirectory())
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
 
     switch (path_parser.GetHostStatus(mount_point)) {
     case PathParser::InvalidMountPoint:
         LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     case PathParser::PathNotFound:
     case PathParser::NotFound:
         LOG_ERROR(Service_FS, "Path not found {}", full_path);
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     case PathParser::FileInPath:
     case PathParser::FileFound:
         LOG_ERROR(Service_FS, "Unexpected file in path {}", full_path);
-        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC;
+        return ResultUnexpectedFileOrDirectorySdmc;
     case PathParser::DirectoryFound:
         break; // Expected 'success' case
     }
 
     if (deleter(full_path)) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     LOG_ERROR(Service_FS, "Directory not empty {}", full_path);
-    return ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC;
+    return ResultUnexpectedFileOrDirectorySdmc;
 }
 
-ResultCode SDMCArchive::DeleteDirectory(const Path& path) const {
+Result SDMCArchive::DeleteDirectory(const Path& path) const {
     return DeleteDirectoryHelper(path, mount_point, FileUtil::DeleteDir);
 }
 
-ResultCode SDMCArchive::DeleteDirectoryRecursively(const Path& path) const {
+Result SDMCArchive::DeleteDirectoryRecursively(const Path& path) const {
     return DeleteDirectoryHelper(
         path, mount_point, [](const std::string& p) { return FileUtil::DeleteDirRecursively(p); });
 }
 
-ResultCode SDMCArchive::CreateFile(const FileSys::Path& path, u64 size) const {
+Result SDMCArchive::CreateFile(const FileSys::Path& path, u64 size) const {
     const PathParser path_parser(path);
 
     if (!path_parser.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
@@ -236,44 +235,44 @@ ResultCode SDMCArchive::CreateFile(const FileSys::Path& path, u64 size) const {
     switch (path_parser.GetHostStatus(mount_point)) {
     case PathParser::InvalidMountPoint:
         LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     case PathParser::PathNotFound:
     case PathParser::FileInPath:
         LOG_ERROR(Service_FS, "Path not found {}", full_path);
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     case PathParser::DirectoryFound:
         LOG_ERROR(Service_FS, "{} already exists", full_path);
-        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC;
+        return ResultUnexpectedFileOrDirectorySdmc;
     case PathParser::FileFound:
         LOG_ERROR(Service_FS, "{} already exists", full_path);
-        return ERROR_ALREADY_EXISTS;
+        return ResultAlreadyExists;
     case PathParser::NotFound:
         break; // Expected 'success' case
     }
 
     if (size == 0) {
         FileUtil::CreateEmptyFile(full_path);
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     FileUtil::IOFile file(full_path, "wb");
     // Creates a sparse file (or a normal file on filesystems without the concept of sparse files)
     // We do this by seeking to the right size, then writing a single null byte.
     if (file.Seek(size - 1, SEEK_SET) && file.WriteBytes("", 1) == 1) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     LOG_ERROR(Service_FS, "Too large file");
-    return ResultCode(ErrorDescription::TooLarge, ErrorModule::FS, ErrorSummary::OutOfResource,
-                      ErrorLevel::Info);
+    return Result(ErrorDescription::TooLarge, ErrorModule::FS, ErrorSummary::OutOfResource,
+                  ErrorLevel::Info);
 }
 
-ResultCode SDMCArchive::CreateDirectory(const Path& path) const {
+Result SDMCArchive::CreateDirectory(const Path& path) const {
     const PathParser path_parser(path);
 
     if (!path_parser.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
@@ -281,55 +280,55 @@ ResultCode SDMCArchive::CreateDirectory(const Path& path) const {
     switch (path_parser.GetHostStatus(mount_point)) {
     case PathParser::InvalidMountPoint:
         LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     case PathParser::PathNotFound:
     case PathParser::FileInPath:
         LOG_ERROR(Service_FS, "Path not found {}", full_path);
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     case PathParser::DirectoryFound:
     case PathParser::FileFound:
         LOG_DEBUG(Service_FS, "{} already exists", full_path);
-        return ERROR_ALREADY_EXISTS;
+        return ResultAlreadyExists;
     case PathParser::NotFound:
         break; // Expected 'success' case
     }
 
     if (FileUtil::CreateDir(mount_point + path.AsString())) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     LOG_CRITICAL(Service_FS, "(unreachable) Unknown error creating {}", mount_point);
-    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, ErrorSummary::Canceled,
-                      ErrorLevel::Status);
+    return Result(ErrorDescription::NoData, ErrorModule::FS, ErrorSummary::Canceled,
+                  ErrorLevel::Status);
 }
 
-ResultCode SDMCArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
+Result SDMCArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
     const PathParser path_parser_src(src_path);
 
     // TODO: Verify these return codes with HW
     if (!path_parser_src.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid src path {}", src_path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const PathParser path_parser_dest(dest_path);
 
     if (!path_parser_dest.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid dest path {}", dest_path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const auto src_path_full = path_parser_src.BuildHostPath(mount_point);
     const auto dest_path_full = path_parser_dest.BuildHostPath(mount_point);
 
     if (FileUtil::Rename(src_path_full, dest_path_full)) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     // TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
     // exist or similar. Verify.
-    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
-                      ErrorSummary::NothingHappened, ErrorLevel::Status);
+    return Result(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                  ErrorSummary::NothingHappened, ErrorLevel::Status);
 }
 
 ResultVal<std::unique_ptr<DirectoryBackend>> SDMCArchive::OpenDirectory(const Path& path) const {
@@ -337,7 +336,7 @@ ResultVal<std::unique_ptr<DirectoryBackend>> SDMCArchive::OpenDirectory(const Pa
 
     if (!path_parser.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
@@ -345,15 +344,15 @@ ResultVal<std::unique_ptr<DirectoryBackend>> SDMCArchive::OpenDirectory(const Pa
     switch (path_parser.GetHostStatus(mount_point)) {
     case PathParser::InvalidMountPoint:
         LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     case PathParser::PathNotFound:
     case PathParser::NotFound:
     case PathParser::FileFound:
         LOG_ERROR(Service_FS, "{} not found", full_path);
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     case PathParser::FileInPath:
         LOG_ERROR(Service_FS, "Unexpected file in path {}", full_path);
-        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC;
+        return ResultUnexpectedFileOrDirectorySdmc;
     case PathParser::DirectoryFound:
         break; // Expected 'success' case
     }
@@ -392,18 +391,17 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SDMC::Open(const Path&
     return std::make_unique<SDMCArchive>(sdmc_directory, std::move(delay_generator));
 }
 
-ResultCode ArchiveFactory_SDMC::Format(const Path& path,
-                                       const FileSys::ArchiveFormatInfo& format_info,
-                                       u64 program_id) {
+Result ArchiveFactory_SDMC::Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                                   u64 program_id) {
     // This is kind of an undesirable operation, so let's just ignore it. :)
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 ResultVal<ArchiveFormatInfo> ArchiveFactory_SDMC::GetFormatInfo(const Path& path,
                                                                 u64 program_id) const {
     // TODO(Subv): Implement
     LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 } // namespace FileSys
 

src/core/file_sys/archive_sdmc.h

@@ -29,13 +29,13 @@ public:
 
     ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path,
                                                      const Mode& mode) const override;
-    ResultCode DeleteFile(const Path& path) const override;
-    ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
-    ResultCode DeleteDirectory(const Path& path) const override;
-    ResultCode DeleteDirectoryRecursively(const Path& path) const override;
-    ResultCode CreateFile(const Path& path, u64 size) const override;
-    ResultCode CreateDirectory(const Path& path) const override;
-    ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
+    Result DeleteFile(const Path& path) const override;
+    Result RenameFile(const Path& src_path, const Path& dest_path) const override;
+    Result DeleteDirectory(const Path& path) const override;
+    Result DeleteDirectoryRecursively(const Path& path) const override;
+    Result CreateFile(const Path& path, u64 size) const override;
+    Result CreateDirectory(const Path& path) const override;
+    Result RenameDirectory(const Path& src_path, const Path& dest_path) const override;
     ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) const override;
     u64 GetFreeBytes() const override;
 
@@ -68,8 +68,8 @@ public:
     }
 
     ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path, u64 program_id) override;
-    ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
-                      u64 program_id) override;
+    Result Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                  u64 program_id) override;
     ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path, u64 program_id) const override;
 
 private:

src/core/file_sys/archive_sdmcwriteonly.cpp

@@ -44,7 +44,7 @@ ResultVal<std::unique_ptr<FileBackend>> SDMCWriteOnlyArchive::OpenFile(const Pat
                                                                        const Mode& mode) const {
     if (mode.read_flag) {
         LOG_ERROR(Service_FS, "Read flag is not supported");
-        return ERROR_INVALID_READ_FLAG;
+        return ResultInvalidReadFlag;
     }
     return SDMCArchive::OpenFileBase(path, mode);
 }
@@ -52,7 +52,7 @@ ResultVal<std::unique_ptr<FileBackend>> SDMCWriteOnlyArchive::OpenFile(const Pat
 ResultVal<std::unique_ptr<DirectoryBackend>> SDMCWriteOnlyArchive::OpenDirectory(
     const Path& path) const {
     LOG_ERROR(Service_FS, "Not supported");
-    return ERROR_UNSUPPORTED_OPEN_FLAGS;
+    return ResultUnsupportedOpenFlags;
 }
 
 ArchiveFactory_SDMCWriteOnly::ArchiveFactory_SDMCWriteOnly(const std::string& mount_point)
@@ -81,19 +81,19 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SDMCWriteOnly::Open(co
     return std::make_unique<SDMCWriteOnlyArchive>(sdmc_directory, std::move(delay_generator));
 }
 
-ResultCode ArchiveFactory_SDMCWriteOnly::Format(const Path& path,
-                                                const FileSys::ArchiveFormatInfo& format_info,
-                                                u64 program_id) {
+Result ArchiveFactory_SDMCWriteOnly::Format(const Path& path,
+                                            const FileSys::ArchiveFormatInfo& format_info,
+                                            u64 program_id) {
     // TODO(wwylele): hwtest this
     LOG_ERROR(Service_FS, "Attempted to format a SDMC write-only archive.");
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
 ResultVal<ArchiveFormatInfo> ArchiveFactory_SDMCWriteOnly::GetFormatInfo(const Path& path,
                                                                          u64 program_id) const {
     // TODO(Subv): Implement
     LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
 } // namespace FileSys

src/core/file_sys/archive_sdmcwriteonly.h

@@ -54,8 +54,8 @@ public:
     }
 
     ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path, u64 program_id) override;
-    ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
-                      u64 program_id) override;
+    Result Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                  u64 program_id) override;
     ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path, u64 program_id) const override;
 
 private:

src/core/file_sys/archive_selfncch.cpp

@@ -39,12 +39,12 @@ public:
     ResultVal<std::size_t> Read(u64 offset, std::size_t length, u8* buffer) const override {
         if (offset != 0) {
             LOG_ERROR(Service_FS, "offset must be zero!");
-            return ERROR_UNSUPPORTED_OPEN_FLAGS;
+            return ResultUnsupportedOpenFlags;
         }
 
         if (length != data->size()) {
             LOG_ERROR(Service_FS, "size must match the file size!");
-            return ERROR_INCORRECT_EXEFS_READ_SIZE;
+            return ResultIncorrectExefsReadSize;
         }
 
         std::memcpy(buffer, data->data(), data->size());
@@ -54,7 +54,7 @@ public:
     ResultVal<std::size_t> Write(u64 offset, std::size_t length, bool flush,
                                  const u8* buffer) override {
         LOG_ERROR(Service_FS, "The file is read-only!");
-        return ERROR_UNSUPPORTED_OPEN_FLAGS;
+        return ResultUnsupportedOpenFlags;
     }
 
     u64 GetSize() const override {
@@ -99,13 +99,13 @@ public:
 
         if (path.GetType() != LowPathType::Binary) {
             LOG_ERROR(Service_FS, "Path need to be Binary");
-            return ERROR_INVALID_PATH;
+            return ResultInvalidPath;
         }
 
         std::vector<u8> binary = path.AsBinary();
         if (binary.size() != sizeof(SelfNCCHFilePath)) {
             LOG_ERROR(Service_FS, "Wrong path size {}", binary.size());
-            return ERROR_INVALID_PATH;
+            return ResultInvalidPath;
         }
 
         SelfNCCHFilePath file_path;
@@ -120,7 +120,7 @@ public:
 
         case SelfNCCHFilePathType::Code:
             LOG_ERROR(Service_FS, "Reading the code section is not supported!");
-            return ERROR_COMMAND_NOT_ALLOWED;
+            return ResultCommandNotAllowed;
 
         case SelfNCCHFilePathType::ExeFS: {
             const auto& raw = file_path.exefs_filename;
@@ -130,48 +130,48 @@ public:
         }
         default:
             LOG_ERROR(Service_FS, "Unknown file type {}!", file_path.type);
-            return ERROR_INVALID_PATH;
+            return ResultInvalidPath;
         }
     }
 
-    ResultCode DeleteFile(const Path& path) const override {
+    Result DeleteFile(const Path& path) const override {
         LOG_ERROR(Service_FS, "Unsupported");
-        return ERROR_UNSUPPORTED_OPEN_FLAGS;
+        return ResultUnsupportedOpenFlags;
     }
 
-    ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override {
+    Result RenameFile(const Path& src_path, const Path& dest_path) const override {
         LOG_ERROR(Service_FS, "Unsupported");
-        return ERROR_UNSUPPORTED_OPEN_FLAGS;
+        return ResultUnsupportedOpenFlags;
     }
 
-    ResultCode DeleteDirectory(const Path& path) const override {
+    Result DeleteDirectory(const Path& path) const override {
         LOG_ERROR(Service_FS, "Unsupported");
-        return ERROR_UNSUPPORTED_OPEN_FLAGS;
+        return ResultUnsupportedOpenFlags;
     }
 
-    ResultCode DeleteDirectoryRecursively(const Path& path) const override {
+    Result DeleteDirectoryRecursively(const Path& path) const override {
         LOG_ERROR(Service_FS, "Unsupported");
-        return ERROR_UNSUPPORTED_OPEN_FLAGS;
+        return ResultUnsupportedOpenFlags;
     }
 
-    ResultCode CreateFile(const Path& path, u64 size) const override {
+    Result CreateFile(const Path& path, u64 size) const override {
         LOG_ERROR(Service_FS, "Unsupported");
-        return ERROR_UNSUPPORTED_OPEN_FLAGS;
+        return ResultUnsupportedOpenFlags;
     }
 
-    ResultCode CreateDirectory(const Path& path) const override {
+    Result CreateDirectory(const Path& path) const override {
         LOG_ERROR(Service_FS, "Unsupported");
-        return ERROR_UNSUPPORTED_OPEN_FLAGS;
+        return ResultUnsupportedOpenFlags;
     }
 
-    ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override {
+    Result RenameDirectory(const Path& src_path, const Path& dest_path) const override {
         LOG_ERROR(Service_FS, "Unsupported");
-        return ERROR_UNSUPPORTED_OPEN_FLAGS;
+        return ResultUnsupportedOpenFlags;
     }
 
     ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) const override {
         LOG_ERROR(Service_FS, "Unsupported");
-        return ERROR_UNSUPPORTED_OPEN_FLAGS;
+        return ResultUnsupportedOpenFlags;
     }
 
     u64 GetFreeBytes() const override {
@@ -186,7 +186,7 @@ private:
             return std::make_unique<IVFCFile>(ncch_data.romfs_file, std::move(delay_generator));
         } else {
             LOG_INFO(Service_FS, "Unable to read RomFS");
-            return ERROR_ROMFS_NOT_FOUND;
+            return ResultRomfsNotFound;
         }
     }
 
@@ -198,7 +198,7 @@ private:
                                               std::move(delay_generator));
         } else {
             LOG_INFO(Service_FS, "Unable to read update RomFS");
-            return ERROR_ROMFS_NOT_FOUND;
+            return ResultRomfsNotFound;
         }
     }
 
@@ -209,7 +209,7 @@ private:
             }
 
             LOG_WARNING(Service_FS, "Unable to read icon");
-            return ERROR_EXEFS_SECTION_NOT_FOUND;
+            return ResultExefsSectionNotFound;
         }
 
         if (filename == "logo") {
@@ -218,7 +218,7 @@ private:
             }
 
             LOG_WARNING(Service_FS, "Unable to read logo");
-            return ERROR_EXEFS_SECTION_NOT_FOUND;
+            return ResultExefsSectionNotFound;
         }
 
         if (filename == "banner") {
@@ -227,11 +227,11 @@ private:
             }
 
             LOG_WARNING(Service_FS, "Unable to read banner");
-            return ERROR_EXEFS_SECTION_NOT_FOUND;
+            return ResultExefsSectionNotFound;
         }
 
         LOG_ERROR(Service_FS, "Unknown ExeFS section {}!", filename);
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     NCCHData ncch_data;
@@ -296,16 +296,16 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SelfNCCH::Open(const P
     return std::make_unique<SelfNCCHArchive>(ncch_data[program_id]);
 }
 
-ResultCode ArchiveFactory_SelfNCCH::Format(const Path&, const FileSys::ArchiveFormatInfo&,
-                                           u64 program_id) {
+Result ArchiveFactory_SelfNCCH::Format(const Path&, const FileSys::ArchiveFormatInfo&,
+                                       u64 program_id) {
     LOG_ERROR(Service_FS, "Attempted to format a SelfNCCH archive.");
-    return ERROR_INVALID_PATH;
+    return ResultInvalidPath;
 }
 
 ResultVal<ArchiveFormatInfo> ArchiveFactory_SelfNCCH::GetFormatInfo(const Path&,
                                                                     u64 program_id) const {
     LOG_ERROR(Service_FS, "Attempted to get format info of a SelfNCCH archive");
-    return ERROR_INVALID_PATH;
+    return ResultInvalidPath;
 }
 
 } // namespace FileSys

src/core/file_sys/archive_selfncch.h

@@ -50,8 +50,8 @@ public:
         return "SelfNCCH";
     }
     ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path, u64 program_id) override;
-    ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
-                      u64 program_id) override;
+    Result Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                  u64 program_id) override;
     ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path, u64 program_id) const override;
 
 private:

src/core/file_sys/archive_source_sd_savedata.cpp

@@ -47,14 +47,14 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveSource_SDSaveData::Open(u64 pr
         // save file/directory structure expected by the game has not yet been initialized.
         // Returning the NotFormatted error code will signal the game to provision the SaveData
         // archive with the files and folders that it expects.
-        return ERR_NOT_FORMATTED;
+        return ResultNotFormatted;
     }
 
     return std::make_unique<SaveDataArchive>(std::move(concrete_mount_point));
 }
 
-ResultCode ArchiveSource_SDSaveData::Format(u64 program_id,
-                                            const FileSys::ArchiveFormatInfo& format_info) {
+Result ArchiveSource_SDSaveData::Format(u64 program_id,
+                                        const FileSys::ArchiveFormatInfo& format_info) {
     std::string concrete_mount_point = GetSaveDataPath(mount_point, program_id);
     FileUtil::DeleteDirRecursively(concrete_mount_point);
     FileUtil::CreateFullPath(concrete_mount_point);
@@ -65,9 +65,9 @@ ResultCode ArchiveSource_SDSaveData::Format(u64 program_id,
 
     if (file.IsOpen()) {
         file.WriteBytes(&format_info, sizeof(format_info));
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 ResultVal<ArchiveFormatInfo> ArchiveSource_SDSaveData::GetFormatInfo(u64 program_id) const {
@@ -77,7 +77,7 @@ ResultVal<ArchiveFormatInfo> ArchiveSource_SDSaveData::GetFormatInfo(u64 program
     if (!file.IsOpen()) {
         LOG_ERROR(Service_FS, "Could not open metadata information for archive");
         // TODO(Subv): Verify error code
-        return ERR_NOT_FORMATTED;
+        return ResultNotFormatted;
     }
 
     ArchiveFormatInfo info = {};

src/core/file_sys/archive_source_sd_savedata.h

@@ -19,7 +19,7 @@ public:
     explicit ArchiveSource_SDSaveData(const std::string& mount_point);
 
     ResultVal<std::unique_ptr<ArchiveBackend>> Open(u64 program_id);
-    ResultCode Format(u64 program_id, const FileSys::ArchiveFormatInfo& format_info);
+    Result Format(u64 program_id, const FileSys::ArchiveFormatInfo& format_info);
     ResultVal<ArchiveFormatInfo> GetFormatInfo(u64 program_id) const;
 
     static std::string GetSaveDataPathFor(const std::string& mount_point, u64 program_id);

src/core/file_sys/archive_systemsavedata.cpp

@@ -57,25 +57,25 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SystemSaveData::Open(c
     std::string fullpath = GetSystemSaveDataPath(base_path, path);
     if (!FileUtil::Exists(fullpath)) {
         // TODO(Subv): Check error code, this one is probably wrong
-        return ERROR_NOT_FOUND;
+        return ResultNotFound;
     }
     return std::make_unique<SaveDataArchive>(fullpath);
 }
 
-ResultCode ArchiveFactory_SystemSaveData::Format(const Path& path,
-                                                 const FileSys::ArchiveFormatInfo& format_info,
-                                                 u64 program_id) {
+Result ArchiveFactory_SystemSaveData::Format(const Path& path,
+                                             const FileSys::ArchiveFormatInfo& format_info,
+                                             u64 program_id) {
     std::string fullpath = GetSystemSaveDataPath(base_path, path);
     FileUtil::DeleteDirRecursively(fullpath);
     FileUtil::CreateFullPath(fullpath);
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 ResultVal<ArchiveFormatInfo> ArchiveFactory_SystemSaveData::GetFormatInfo(const Path& path,
                                                                           u64 program_id) const {
     // TODO(Subv): Implement
     LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive {}", GetName());
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
 } // namespace FileSys

src/core/file_sys/archive_systemsavedata.h

@@ -20,8 +20,8 @@ public:
     explicit ArchiveFactory_SystemSaveData(const std::string& mount_point);
 
     ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path, u64 program_id) override;
-    ResultCode Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
-                      u64 program_id) override;
+    Result Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info,
+                  u64 program_id) override;
     ResultVal<ArchiveFormatInfo> GetFormatInfo(const Path& path, u64 program_id) const override;
 
     std::string GetName() const override {

src/core/file_sys/disk_archive.cpp

@@ -19,7 +19,7 @@ namespace FileSys {
 ResultVal<std::size_t> DiskFile::Read(const u64 offset, const std::size_t length,
                                       u8* buffer) const {
     if (!mode.read_flag)
-        return ERROR_INVALID_OPEN_FLAGS;
+        return ResultInvalidOpenFlags;
 
     file->Seek(offset, SEEK_SET);
     return file->ReadBytes(buffer, length);
@@ -28,7 +28,7 @@ ResultVal<std::size_t> DiskFile::Read(const u64 offset, const std::size_t length
 ResultVal<std::size_t> DiskFile::Write(const u64 offset, const std::size_t length, const bool flush,
                                        const u8* buffer) {
     if (!mode.write_flag)
-        return ERROR_INVALID_OPEN_FLAGS;
+        return ResultInvalidOpenFlags;
 
     file->Seek(offset, SEEK_SET);
     std::size_t written = file->WriteBytes(buffer, length);

src/core/file_sys/errors.h

@@ -35,63 +35,60 @@ enum {
 };
 }
 
-constexpr ResultCode ERROR_INVALID_PATH(ErrCodes::InvalidPath, ErrorModule::FS,
-                                        ErrorSummary::InvalidArgument, ErrorLevel::Usage);
-constexpr ResultCode ERROR_UNSUPPORTED_OPEN_FLAGS(ErrCodes::UnsupportedOpenFlags, ErrorModule::FS,
-                                                  ErrorSummary::NotSupported, ErrorLevel::Usage);
-constexpr ResultCode ERROR_INVALID_OPEN_FLAGS(ErrCodes::InvalidOpenFlags, ErrorModule::FS,
-                                              ErrorSummary::Canceled, ErrorLevel::Status);
-constexpr ResultCode ERROR_INVALID_READ_FLAG(ErrCodes::InvalidReadFlag, ErrorModule::FS,
-                                             ErrorSummary::InvalidArgument, ErrorLevel::Usage);
-constexpr ResultCode ERROR_FILE_NOT_FOUND(ErrCodes::FileNotFound, ErrorModule::FS,
-                                          ErrorSummary::NotFound, ErrorLevel::Status);
-constexpr ResultCode ERROR_PATH_NOT_FOUND(ErrCodes::PathNotFound, ErrorModule::FS,
-                                          ErrorSummary::NotFound, ErrorLevel::Status);
-constexpr ResultCode ERROR_NOT_FOUND(ErrCodes::NotFound, ErrorModule::FS, ErrorSummary::NotFound,
-                                     ErrorLevel::Status);
-constexpr ResultCode ERROR_UNEXPECTED_FILE_OR_DIRECTORY(ErrCodes::UnexpectedFileOrDirectory,
-                                                        ErrorModule::FS, ErrorSummary::NotSupported,
-                                                        ErrorLevel::Usage);
-constexpr ResultCode ERROR_UNEXPECTED_FILE_OR_DIRECTORY_SDMC(ErrCodes::NotAFile, ErrorModule::FS,
-                                                             ErrorSummary::Canceled,
-                                                             ErrorLevel::Status);
-constexpr ResultCode ERROR_DIRECTORY_ALREADY_EXISTS(ErrCodes::DirectoryAlreadyExists,
-                                                    ErrorModule::FS, ErrorSummary::NothingHappened,
-                                                    ErrorLevel::Status);
-constexpr ResultCode ERROR_FILE_ALREADY_EXISTS(ErrCodes::FileAlreadyExists, ErrorModule::FS,
-                                               ErrorSummary::NothingHappened, ErrorLevel::Status);
-constexpr ResultCode ERROR_ALREADY_EXISTS(ErrCodes::AlreadyExists, ErrorModule::FS,
-                                          ErrorSummary::NothingHappened, ErrorLevel::Status);
-constexpr ResultCode ERROR_DIRECTORY_NOT_EMPTY(ErrCodes::DirectoryNotEmpty, ErrorModule::FS,
-                                               ErrorSummary::Canceled, ErrorLevel::Status);
-constexpr ResultCode ERROR_GAMECARD_NOT_INSERTED(ErrCodes::GameCardNotInserted, ErrorModule::FS,
-                                                 ErrorSummary::NotFound, ErrorLevel::Status);
-constexpr ResultCode ERROR_INCORRECT_EXEFS_READ_SIZE(ErrCodes::IncorrectExeFSReadSize,
-                                                     ErrorModule::FS, ErrorSummary::NotSupported,
-                                                     ErrorLevel::Usage);
-constexpr ResultCode ERROR_ROMFS_NOT_FOUND(ErrCodes::RomFSNotFound, ErrorModule::FS,
+constexpr Result ResultInvalidPath(ErrCodes::InvalidPath, ErrorModule::FS,
+                                   ErrorSummary::InvalidArgument, ErrorLevel::Usage);
+constexpr Result ResultUnsupportedOpenFlags(ErrCodes::UnsupportedOpenFlags, ErrorModule::FS,
+                                            ErrorSummary::NotSupported, ErrorLevel::Usage);
+constexpr Result ResultInvalidOpenFlags(ErrCodes::InvalidOpenFlags, ErrorModule::FS,
+                                        ErrorSummary::Canceled, ErrorLevel::Status);
+constexpr Result ResultInvalidReadFlag(ErrCodes::InvalidReadFlag, ErrorModule::FS,
+                                       ErrorSummary::InvalidArgument, ErrorLevel::Usage);
+constexpr Result ResultFileNotFound(ErrCodes::FileNotFound, ErrorModule::FS, ErrorSummary::NotFound,
+                                    ErrorLevel::Status);
+constexpr Result ResultPathNotFound(ErrCodes::PathNotFound, ErrorModule::FS, ErrorSummary::NotFound,
+                                    ErrorLevel::Status);
+constexpr Result ResultNotFound(ErrCodes::NotFound, ErrorModule::FS, ErrorSummary::NotFound,
+                                ErrorLevel::Status);
+constexpr Result ResultUnexpectedFileOrDirectory(ErrCodes::UnexpectedFileOrDirectory,
+                                                 ErrorModule::FS, ErrorSummary::NotSupported,
+                                                 ErrorLevel::Usage);
+constexpr Result ResultUnexpectedFileOrDirectorySdmc(ErrCodes::NotAFile, ErrorModule::FS,
+                                                     ErrorSummary::Canceled, ErrorLevel::Status);
+constexpr Result ResultDirectoryAlreadyExists(ErrCodes::DirectoryAlreadyExists, ErrorModule::FS,
+                                              ErrorSummary::NothingHappened, ErrorLevel::Status);
+constexpr Result ResultFileAlreadyExists(ErrCodes::FileAlreadyExists, ErrorModule::FS,
+                                         ErrorSummary::NothingHappened, ErrorLevel::Status);
+constexpr Result ResultAlreadyExists(ErrCodes::AlreadyExists, ErrorModule::FS,
+                                     ErrorSummary::NothingHappened, ErrorLevel::Status);
+constexpr Result ResultDirectoryNotEmpty(ErrCodes::DirectoryNotEmpty, ErrorModule::FS,
+                                         ErrorSummary::Canceled, ErrorLevel::Status);
+constexpr Result ResultGamecardNotInserted(ErrCodes::GameCardNotInserted, ErrorModule::FS,
                                            ErrorSummary::NotFound, ErrorLevel::Status);
-constexpr ResultCode ERROR_COMMAND_NOT_ALLOWED(ErrCodes::CommandNotAllowed, ErrorModule::FS,
-                                               ErrorSummary::WrongArgument, ErrorLevel::Permanent);
-constexpr ResultCode ERROR_EXEFS_SECTION_NOT_FOUND(ErrCodes::ExeFSSectionNotFound, ErrorModule::FS,
-                                                   ErrorSummary::NotFound, ErrorLevel::Status);
-constexpr ResultCode ERROR_INSUFFICIENT_SPACE(ErrCodes::InsufficientSpace, ErrorModule::FS,
-                                              ErrorSummary::OutOfResource, ErrorLevel::Status);
+constexpr Result ResultIncorrectExefsReadSize(ErrCodes::IncorrectExeFSReadSize, ErrorModule::FS,
+                                              ErrorSummary::NotSupported, ErrorLevel::Usage);
+constexpr Result ResultRomfsNotFound(ErrCodes::RomFSNotFound, ErrorModule::FS,
+                                     ErrorSummary::NotFound, ErrorLevel::Status);
+constexpr Result ResultCommandNotAllowed(ErrCodes::CommandNotAllowed, ErrorModule::FS,
+                                         ErrorSummary::WrongArgument, ErrorLevel::Permanent);
+constexpr Result ResultExefsSectionNotFound(ErrCodes::ExeFSSectionNotFound, ErrorModule::FS,
+                                            ErrorSummary::NotFound, ErrorLevel::Status);
+constexpr Result ResultInsufficientSpace(ErrCodes::InsufficientSpace, ErrorModule::FS,
+                                         ErrorSummary::OutOfResource, ErrorLevel::Status);
 
 /// Returned when a function is passed an invalid archive handle.
-constexpr ResultCode ERR_INVALID_ARCHIVE_HANDLE(ErrCodes::ArchiveNotMounted, ErrorModule::FS,
-                                                ErrorSummary::NotFound,
-                                                ErrorLevel::Status); // 0xC8804465
-constexpr ResultCode ERR_WRITE_BEYOND_END(ErrCodes::WriteBeyondEnd, ErrorModule::FS,
-                                          ErrorSummary::InvalidArgument, ErrorLevel::Usage);
+constexpr Result ResultInvalidArchiveHandle(ErrCodes::ArchiveNotMounted, ErrorModule::FS,
+                                            ErrorSummary::NotFound,
+                                            ErrorLevel::Status); // 0xC8804465
+constexpr Result ResultWriteBeyondEnd(ErrCodes::WriteBeyondEnd, ErrorModule::FS,
+                                      ErrorSummary::InvalidArgument, ErrorLevel::Usage);
 
 /**
- * Variant of ERROR_NOT_FOUND returned in some places in the code. Unknown if these usages are
+ * Variant of ResultNotFound returned in some places in the code. Unknown if these usages are
  * correct or a bug.
  */
-constexpr ResultCode ERR_NOT_FOUND_INVALID_STATE(ErrCodes::NotFound, ErrorModule::FS,
-                                                 ErrorSummary::InvalidState, ErrorLevel::Status);
-constexpr ResultCode ERR_NOT_FORMATTED(ErrCodes::NotFormatted, ErrorModule::FS,
-                                       ErrorSummary::InvalidState, ErrorLevel::Status);
+constexpr Result ResultNotFoundInvalidState(ErrCodes::NotFound, ErrorModule::FS,
+                                            ErrorSummary::InvalidState, ErrorLevel::Status);
+constexpr Result ResultNotFormatted(ErrCodes::NotFormatted, ErrorModule::FS,
+                                    ErrorSummary::InvalidState, ErrorLevel::Status);
 
 } // namespace FileSys

src/core/file_sys/ivfc_archive.cpp

@@ -34,50 +34,50 @@ ResultVal<std::unique_ptr<FileBackend>> IVFCArchive::OpenFile(const Path& path,
     return std::make_unique<IVFCFile>(romfs_file, std::move(delay_generator));
 }
 
-ResultCode IVFCArchive::DeleteFile(const Path& path) const {
+Result IVFCArchive::DeleteFile(const Path& path) const {
     LOG_CRITICAL(Service_FS, "Attempted to delete a file from an IVFC archive ({}).", GetName());
     // TODO(Subv): Verify error code
-    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, ErrorSummary::Canceled,
-                      ErrorLevel::Status);
+    return Result(ErrorDescription::NoData, ErrorModule::FS, ErrorSummary::Canceled,
+                  ErrorLevel::Status);
 }
 
-ResultCode IVFCArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
+Result IVFCArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
     LOG_CRITICAL(Service_FS, "Attempted to rename a file within an IVFC archive ({}).", GetName());
     // TODO(wwylele): Use correct error code
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
-ResultCode IVFCArchive::DeleteDirectory(const Path& path) const {
+Result IVFCArchive::DeleteDirectory(const Path& path) const {
     LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an IVFC archive ({}).",
                  GetName());
     // TODO(wwylele): Use correct error code
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
-ResultCode IVFCArchive::DeleteDirectoryRecursively(const Path& path) const {
+Result IVFCArchive::DeleteDirectoryRecursively(const Path& path) const {
     LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an IVFC archive ({}).",
                  GetName());
     // TODO(wwylele): Use correct error code
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
-ResultCode IVFCArchive::CreateFile(const Path& path, u64 size) const {
+Result IVFCArchive::CreateFile(const Path& path, u64 size) const {
     LOG_CRITICAL(Service_FS, "Attempted to create a file in an IVFC archive ({}).", GetName());
     // TODO: Verify error code
-    return ResultCode(ErrorDescription::NotAuthorized, ErrorModule::FS, ErrorSummary::NotSupported,
-                      ErrorLevel::Permanent);
+    return Result(ErrorDescription::NotAuthorized, ErrorModule::FS, ErrorSummary::NotSupported,
+                  ErrorLevel::Permanent);
 }
 
-ResultCode IVFCArchive::CreateDirectory(const Path& path) const {
+Result IVFCArchive::CreateDirectory(const Path& path) const {
     LOG_CRITICAL(Service_FS, "Attempted to create a directory in an IVFC archive ({}).", GetName());
     // TODO(wwylele): Use correct error code
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
-ResultCode IVFCArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
+Result IVFCArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
     LOG_CRITICAL(Service_FS, "Attempted to rename a file within an IVFC archive ({}).", GetName());
     // TODO(wwylele): Use correct error code
-    return RESULT_UNKNOWN;
+    return ResultUnknown;
 }
 
 ResultVal<std::unique_ptr<DirectoryBackend>> IVFCArchive::OpenDirectory(const Path& path) const {

src/core/file_sys/ivfc_archive.h

@@ -103,13 +103,13 @@ public:
 
     ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path,
                                                      const Mode& mode) const override;
-    ResultCode DeleteFile(const Path& path) const override;
-    ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
-    ResultCode DeleteDirectory(const Path& path) const override;
-    ResultCode DeleteDirectoryRecursively(const Path& path) const override;
-    ResultCode CreateFile(const Path& path, u64 size) const override;
-    ResultCode CreateDirectory(const Path& path) const override;
-    ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
+    Result DeleteFile(const Path& path) const override;
+    Result RenameFile(const Path& src_path, const Path& dest_path) const override;
+    Result DeleteDirectory(const Path& path) const override;
+    Result DeleteDirectoryRecursively(const Path& path) const override;
+    Result CreateFile(const Path& path, u64 size) const override;
+    Result CreateDirectory(const Path& path) const override;
+    Result RenameDirectory(const Path& src_path, const Path& dest_path) const override;
     ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) const override;
     u64 GetFreeBytes() const override;
 

src/core/file_sys/plugin_3gx.cpp

@@ -65,7 +65,7 @@ static bool ReadSection(std::vector<u8>& data_out, FileUtil::IOFile& file, std::
 
 Loader::ResultStatus FileSys::Plugin3GXLoader::Load(
     Service::PLGLDR::PLG_LDR::PluginLoaderContext& plg_context, Kernel::Process& process,
-    Kernel::KernelSystem& kernel) {
+    Kernel::KernelSystem& kernel, Service::PLGLDR::PLG_LDR& plg_ldr) {
     FileUtil::IOFile file(plg_context.plugin_path, "rb");
     if (!file.IsOpen()) {
         LOG_ERROR(Service_PLGLDR, "Failed to load 3GX plugin. Not found: {}",
@@ -158,12 +158,12 @@ Loader::ResultStatus FileSys::Plugin3GXLoader::Load(
         return Loader::ResultStatus::Error;
     }
 
-    return Map(plg_context, process, kernel);
+    return Map(plg_context, process, kernel, plg_ldr);
 }
 
 Loader::ResultStatus FileSys::Plugin3GXLoader::Map(
     Service::PLGLDR::PLG_LDR::PluginLoaderContext& plg_context, Kernel::Process& process,
-    Kernel::KernelSystem& kernel) {
+    Kernel::KernelSystem& kernel, Service::PLGLDR::PLG_LDR& plg_ldr) {
 
     // Verify exe load checksum function is available
     if (exe_load_func.empty() && plg_context.load_exe_func.empty()) {
@@ -195,7 +195,7 @@ Loader::ResultStatus FileSys::Plugin3GXLoader::Map(
         return Loader::ResultStatus::ErrorMemoryAllocationFailed;
     }
     auto backing_memory_fb = kernel.memory.GetFCRAMRef(*offset_fb);
-    Service::PLGLDR::PLG_LDR::SetPluginFBAddr(Memory::FCRAM_PADDR + *offset_fb);
+    plg_ldr.SetPluginFBAddr(Memory::FCRAM_PADDR + *offset_fb);
     std::fill(backing_memory_fb.GetPtr(), backing_memory_fb.GetPtr() + _3GX_fb_size, 0);
 
     auto vma_heap_fb = process.vm_manager.MapBackingMemory(

src/core/file_sys/plugin_3gx.h

@@ -43,7 +43,8 @@ class FileBackend;
 class Plugin3GXLoader {
 public:
     Loader::ResultStatus Load(Service::PLGLDR::PLG_LDR::PluginLoaderContext& plg_context,
-                              Kernel::Process& process, Kernel::KernelSystem& kernel);
+                              Kernel::Process& process, Kernel::KernelSystem& kernel,
+                              Service::PLGLDR::PLG_LDR& plg_ldr);
 
     struct PluginHeader {
         u32_le magic;
@@ -68,7 +69,8 @@ public:
 
 private:
     Loader::ResultStatus Map(Service::PLGLDR::PLG_LDR::PluginLoaderContext& plg_context,
-                             Kernel::Process& process, Kernel::KernelSystem& kernel);
+                             Kernel::Process& process, Kernel::KernelSystem& kernel,
+                             Service::PLGLDR::PLG_LDR& plg_ldr);
 
     static constexpr size_t bootloader_memory_size = 0x1000;
     static void MapBootloader(Kernel::Process& process, Kernel::KernelSystem& kernel,

src/core/file_sys/savedata_archive.cpp

@@ -43,17 +43,17 @@ ResultVal<std::unique_ptr<FileBackend>> SaveDataArchive::OpenFile(const Path& pa
 
     if (!path_parser.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     if (mode.hex == 0) {
         LOG_ERROR(Service_FS, "Empty open mode");
-        return ERROR_UNSUPPORTED_OPEN_FLAGS;
+        return ResultUnsupportedOpenFlags;
     }
 
     if (mode.create_flag && !mode.write_flag) {
         LOG_ERROR(Service_FS, "Create flag set but write flag not set");
-        return ERROR_UNSUPPORTED_OPEN_FLAGS;
+        return ResultUnsupportedOpenFlags;
     }
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
@@ -61,19 +61,19 @@ ResultVal<std::unique_ptr<FileBackend>> SaveDataArchive::OpenFile(const Path& pa
     switch (path_parser.GetHostStatus(mount_point)) {
     case PathParser::InvalidMountPoint:
         LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-        return ERROR_FILE_NOT_FOUND;
+        return ResultFileNotFound;
     case PathParser::PathNotFound:
         LOG_ERROR(Service_FS, "Path not found {}", full_path);
-        return ERROR_PATH_NOT_FOUND;
+        return ResultPathNotFound;
     case PathParser::FileInPath:
     case PathParser::DirectoryFound:
         LOG_ERROR(Service_FS, "Unexpected file or directory in {}", full_path);
-        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
+        return ResultUnexpectedFileOrDirectory;
     case PathParser::NotFound:
         if (!mode.create_flag) {
             LOG_ERROR(Service_FS, "Non-existing file {} can't be open without mode create.",
                       full_path);
-            return ERROR_FILE_NOT_FOUND;
+            return ResultFileNotFound;
         } else {
             // Create the file
             FileUtil::CreateEmptyFile(full_path);
@@ -86,19 +86,19 @@ ResultVal<std::unique_ptr<FileBackend>> SaveDataArchive::OpenFile(const Path& pa
     FileUtil::IOFile file(full_path, mode.write_flag ? "r+b" : "rb");
     if (!file.IsOpen()) {
         LOG_CRITICAL(Service_FS, "(unreachable) Unknown error opening {}", full_path);
-        return ERROR_FILE_NOT_FOUND;
+        return ResultFileNotFound;
     }
 
     std::unique_ptr<DelayGenerator> delay_generator = std::make_unique<SaveDataDelayGenerator>();
     return std::make_unique<DiskFile>(std::move(file), mode, std::move(delay_generator));
 }
 
-ResultCode SaveDataArchive::DeleteFile(const Path& path) const {
+Result SaveDataArchive::DeleteFile(const Path& path) const {
     const PathParser path_parser(path);
 
     if (!path_parser.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
@@ -106,110 +106,109 @@ ResultCode SaveDataArchive::DeleteFile(const Path& path) const {
     switch (path_parser.GetHostStatus(mount_point)) {
     case PathParser::InvalidMountPoint:
         LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-        return ERROR_FILE_NOT_FOUND;
+        return ResultFileNotFound;
     case PathParser::PathNotFound:
         LOG_ERROR(Service_FS, "Path not found {}", full_path);
-        return ERROR_PATH_NOT_FOUND;
+        return ResultPathNotFound;
     case PathParser::FileInPath:
     case PathParser::DirectoryFound:
     case PathParser::NotFound:
         LOG_ERROR(Service_FS, "File not found {}", full_path);
-        return ERROR_FILE_NOT_FOUND;
+        return ResultFileNotFound;
     case PathParser::FileFound:
         break; // Expected 'success' case
     }
 
     if (FileUtil::Delete(full_path)) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     LOG_CRITICAL(Service_FS, "(unreachable) Unknown error deleting {}", full_path);
-    return ERROR_FILE_NOT_FOUND;
+    return ResultFileNotFound;
 }
 
-ResultCode SaveDataArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
+Result SaveDataArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
     const PathParser path_parser_src(src_path);
 
     // TODO: Verify these return codes with HW
     if (!path_parser_src.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid src path {}", src_path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const PathParser path_parser_dest(dest_path);
 
     if (!path_parser_dest.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid dest path {}", dest_path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const auto src_path_full = path_parser_src.BuildHostPath(mount_point);
     const auto dest_path_full = path_parser_dest.BuildHostPath(mount_point);
 
     if (FileUtil::Rename(src_path_full, dest_path_full)) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     // TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
     // exist or similar. Verify.
-    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
-                      ErrorSummary::NothingHappened, ErrorLevel::Status);
+    return Result(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                  ErrorSummary::NothingHappened, ErrorLevel::Status);
 }
 
 template <typename T>
-static ResultCode DeleteDirectoryHelper(const Path& path, const std::string& mount_point,
-                                        T deleter) {
+static Result DeleteDirectoryHelper(const Path& path, const std::string& mount_point, T deleter) {
     const PathParser path_parser(path);
 
     if (!path_parser.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     if (path_parser.IsRootDirectory())
-        return ERROR_DIRECTORY_NOT_EMPTY;
+        return ResultDirectoryNotEmpty;
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
 
     switch (path_parser.GetHostStatus(mount_point)) {
     case PathParser::InvalidMountPoint:
         LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-        return ERROR_PATH_NOT_FOUND;
+        return ResultPathNotFound;
     case PathParser::PathNotFound:
     case PathParser::NotFound:
         LOG_ERROR(Service_FS, "Path not found {}", full_path);
-        return ERROR_PATH_NOT_FOUND;
+        return ResultPathNotFound;
     case PathParser::FileInPath:
     case PathParser::FileFound:
         LOG_ERROR(Service_FS, "Unexpected file or directory {}", full_path);
-        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
+        return ResultUnexpectedFileOrDirectory;
     case PathParser::DirectoryFound:
         break; // Expected 'success' case
     }
 
     if (deleter(full_path)) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     LOG_ERROR(Service_FS, "Directory not empty {}", full_path);
-    return ERROR_DIRECTORY_NOT_EMPTY;
+    return ResultDirectoryNotEmpty;
 }
 
-ResultCode SaveDataArchive::DeleteDirectory(const Path& path) const {
+Result SaveDataArchive::DeleteDirectory(const Path& path) const {
     return DeleteDirectoryHelper(path, mount_point, FileUtil::DeleteDir);
 }
 
-ResultCode SaveDataArchive::DeleteDirectoryRecursively(const Path& path) const {
+Result SaveDataArchive::DeleteDirectoryRecursively(const Path& path) const {
     return DeleteDirectoryHelper(
         path, mount_point, [](const std::string& p) { return FileUtil::DeleteDirRecursively(p); });
 }
 
-ResultCode SaveDataArchive::CreateFile(const FileSys::Path& path, u64 size) const {
+Result SaveDataArchive::CreateFile(const FileSys::Path& path, u64 size) const {
     const PathParser path_parser(path);
 
     if (!path_parser.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
@@ -217,44 +216,44 @@ ResultCode SaveDataArchive::CreateFile(const FileSys::Path& path, u64 size) cons
     switch (path_parser.GetHostStatus(mount_point)) {
     case PathParser::InvalidMountPoint:
         LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-        return ERROR_FILE_NOT_FOUND;
+        return ResultFileNotFound;
     case PathParser::PathNotFound:
         LOG_ERROR(Service_FS, "Path not found {}", full_path);
-        return ERROR_PATH_NOT_FOUND;
+        return ResultPathNotFound;
     case PathParser::FileInPath:
         LOG_ERROR(Service_FS, "Unexpected file in path {}", full_path);
-        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
+        return ResultUnexpectedFileOrDirectory;
     case PathParser::DirectoryFound:
     case PathParser::FileFound:
         LOG_ERROR(Service_FS, "{} already exists", full_path);
-        return ERROR_FILE_ALREADY_EXISTS;
+        return ResultFileAlreadyExists;
     case PathParser::NotFound:
         break; // Expected 'success' case
     }
 
     if (size == 0) {
         FileUtil::CreateEmptyFile(full_path);
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     FileUtil::IOFile file(full_path, "wb");
     // Creates a sparse file (or a normal file on filesystems without the concept of sparse files)
     // We do this by seeking to the right size, then writing a single null byte.
     if (file.Seek(size - 1, SEEK_SET) && file.WriteBytes("", 1) == 1) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     LOG_ERROR(Service_FS, "Too large file");
-    return ResultCode(ErrorDescription::TooLarge, ErrorModule::FS, ErrorSummary::OutOfResource,
-                      ErrorLevel::Info);
+    return Result(ErrorDescription::TooLarge, ErrorModule::FS, ErrorSummary::OutOfResource,
+                  ErrorLevel::Info);
 }
 
-ResultCode SaveDataArchive::CreateDirectory(const Path& path) const {
+Result SaveDataArchive::CreateDirectory(const Path& path) const {
     const PathParser path_parser(path);
 
     if (!path_parser.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
@@ -262,57 +261,57 @@ ResultCode SaveDataArchive::CreateDirectory(const Path& path) const {
     switch (path_parser.GetHostStatus(mount_point)) {
     case PathParser::InvalidMountPoint:
         LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-        return ERROR_FILE_NOT_FOUND;
+        return ResultFileNotFound;
     case PathParser::PathNotFound:
         LOG_ERROR(Service_FS, "Path not found {}", full_path);
-        return ERROR_PATH_NOT_FOUND;
+        return ResultPathNotFound;
     case PathParser::FileInPath:
         LOG_ERROR(Service_FS, "Unexpected file in path {}", full_path);
-        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
+        return ResultUnexpectedFileOrDirectory;
     case PathParser::DirectoryFound:
     case PathParser::FileFound:
         LOG_ERROR(Service_FS, "{} already exists", full_path);
-        return ERROR_DIRECTORY_ALREADY_EXISTS;
+        return ResultDirectoryAlreadyExists;
     case PathParser::NotFound:
         break; // Expected 'success' case
     }
 
     if (FileUtil::CreateDir(mount_point + path.AsString())) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     LOG_CRITICAL(Service_FS, "(unreachable) Unknown error creating {}", mount_point);
-    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, ErrorSummary::Canceled,
-                      ErrorLevel::Status);
+    return Result(ErrorDescription::NoData, ErrorModule::FS, ErrorSummary::Canceled,
+                  ErrorLevel::Status);
 }
 
-ResultCode SaveDataArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
+Result SaveDataArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
     const PathParser path_parser_src(src_path);
 
     // TODO: Verify these return codes with HW
     if (!path_parser_src.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid src path {}", src_path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const PathParser path_parser_dest(dest_path);
 
     if (!path_parser_dest.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid dest path {}", dest_path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const auto src_path_full = path_parser_src.BuildHostPath(mount_point);
     const auto dest_path_full = path_parser_dest.BuildHostPath(mount_point);
 
     if (FileUtil::Rename(src_path_full, dest_path_full)) {
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     // TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
     // exist or similar. Verify.
-    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
-                      ErrorSummary::NothingHappened, ErrorLevel::Status);
+    return Result(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
+                  ErrorSummary::NothingHappened, ErrorLevel::Status);
 }
 
 ResultVal<std::unique_ptr<DirectoryBackend>> SaveDataArchive::OpenDirectory(
@@ -321,7 +320,7 @@ ResultVal<std::unique_ptr<DirectoryBackend>> SaveDataArchive::OpenDirectory(
 
     if (!path_parser.IsValid()) {
         LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
-        return ERROR_INVALID_PATH;
+        return ResultInvalidPath;
     }
 
     const auto full_path = path_parser.BuildHostPath(mount_point);
@@ -329,15 +328,15 @@ ResultVal<std::unique_ptr<DirectoryBackend>> SaveDataArchive::OpenDirectory(
     switch (path_parser.GetHostStatus(mount_point)) {
     case PathParser::InvalidMountPoint:
         LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
-        return ERROR_FILE_NOT_FOUND;
+        return ResultFileNotFound;
     case PathParser::PathNotFound:
     case PathParser::NotFound:
         LOG_ERROR(Service_FS, "Path not found {}", full_path);
-        return ERROR_PATH_NOT_FOUND;
+        return ResultPathNotFound;
     case PathParser::FileInPath:
     case PathParser::FileFound:
         LOG_ERROR(Service_FS, "Unexpected file in path {}", full_path);
-        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
+        return ResultUnexpectedFileOrDirectory;
     case PathParser::DirectoryFound:
         break; // Expected 'success' case
     }

src/core/file_sys/savedata_archive.h

@@ -23,13 +23,13 @@ public:
 
     ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path,
                                                      const Mode& mode) const override;
-    ResultCode DeleteFile(const Path& path) const override;
-    ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
-    ResultCode DeleteDirectory(const Path& path) const override;
-    ResultCode DeleteDirectoryRecursively(const Path& path) const override;
-    ResultCode CreateFile(const Path& path, u64 size) const override;
-    ResultCode CreateDirectory(const Path& path) const override;
-    ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
+    Result DeleteFile(const Path& path) const override;
+    Result RenameFile(const Path& src_path, const Path& dest_path) const override;
+    Result DeleteDirectory(const Path& path) const override;
+    Result DeleteDirectoryRecursively(const Path& path) const override;
+    Result CreateFile(const Path& path, u64 size) const override;
+    Result CreateDirectory(const Path& path) const override;
+    Result RenameDirectory(const Path& src_path, const Path& dest_path) const override;
     ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) const override;
     u64 GetFreeBytes() const override;
 

src/core/frontend/applets/default_applets.cpp

@@ -9,7 +9,7 @@
 
 namespace Frontend {
 void RegisterDefaultApplets(Core::System& system) {
-    system.RegisterSoftwareKeyboard(std::make_shared<DefaultKeyboard>());
+    system.RegisterSoftwareKeyboard(std::make_shared<DefaultKeyboard>(system));
     system.RegisterMiiSelector(std::make_shared<DefaultMiiSelector>());
 }
 } // namespace Frontend

src/core/frontend/applets/swkbd.cpp

@@ -144,10 +144,12 @@ const KeyboardData& SoftwareKeyboard::ReceiveData() {
     return data;
 }
 
+DefaultKeyboard::DefaultKeyboard(Core::System& system_) : system(system_) {}
+
 void DefaultKeyboard::Execute(const Frontend::KeyboardConfig& config_) {
     SoftwareKeyboard::Execute(config_);
 
-    auto cfg = Service::CFG::GetModule(Core::System::GetInstance());
+    auto cfg = Service::CFG::GetModule(system);
     std::string username = Common::UTF16ToUTF8(cfg->GetUsername());
     switch (this->config.button_config) {
     case ButtonConfig::None:

src/core/frontend/applets/swkbd.h

@@ -8,6 +8,10 @@
 #include <vector>
 #include "common/assert.h"
 
+namespace Core {
+class System;
+}
+
 namespace Frontend {
 
 enum class AcceptedInput {
@@ -137,8 +141,12 @@ protected:
 
 class DefaultKeyboard final : public SoftwareKeyboard {
 public:
+    explicit DefaultKeyboard(Core::System& system_);
     void Execute(const KeyboardConfig& config) override;
     void ShowError(const std::string& error) override;
+
+private:
+    Core::System& system;
 };
 
 } // namespace Frontend

src/core/frontend/emu_window.cpp

@@ -173,8 +173,7 @@ void EmuWindow::TouchMoved(unsigned framebuffer_x, unsigned framebuffer_y) {
     TouchPressed(framebuffer_x, framebuffer_y);
 }
 
-void EmuWindow::UpdateCurrentFramebufferLayout(unsigned width, unsigned height,
-                                               bool is_portrait_mode) {
+void EmuWindow::UpdateCurrentFramebufferLayout(u32 width, u32 height, bool is_portrait_mode) {
     Layout::FramebufferLayout layout;
 
     // If in portrait mode, only the MobilePortrait option really makes sense
@@ -200,7 +199,8 @@ void EmuWindow::UpdateCurrentFramebufferLayout(unsigned width, unsigned height,
             layout =
                 Layout::LargeFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
                                          Settings::values.upright_screen.GetValue(),
-                                         Settings::values.large_screen_proportion.GetValue());
+                                         Settings::values.large_screen_proportion.GetValue(),
+                                         Layout::VerticalAlignment::Bottom);
             break;
         case Settings::LayoutOption::HybridScreen:
             layout =
@@ -208,8 +208,10 @@ void EmuWindow::UpdateCurrentFramebufferLayout(unsigned width, unsigned height,
                                            Settings::values.upright_screen.GetValue());
             break;
         case Settings::LayoutOption::SideScreen:
-            layout = Layout::SideFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
-                                             Settings::values.upright_screen.GetValue());
+            layout =
+                Layout::LargeFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
+                                         Settings::values.upright_screen.GetValue(), 1.0f,
+                                         Layout::VerticalAlignment::Bottom);
             break;
 #ifndef ANDROID
         case Settings::LayoutOption::SeparateWindows:
@@ -222,8 +224,9 @@ void EmuWindow::UpdateCurrentFramebufferLayout(unsigned width, unsigned height,
                                                        Settings::values.swap_screen.GetValue());
             break;
         case Settings::LayoutOption::MobileLandscape:
-            layout = Layout::MobileLandscapeFrameLayout(
-                width, height, Settings::values.swap_screen.GetValue(), 2.25f, false);
+            layout =
+                Layout::LargeFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
+                                         false, 2.25f, Layout::VerticalAlignment::Top);
             break;
         case Settings::LayoutOption::Default:
         default:

src/core/frontend/framebuffer_layout.cpp

@@ -30,7 +30,7 @@ u32 FramebufferLayout::GetScalingRatio() const {
 
 // Finds the largest size subrectangle contained in window area that is confined to the aspect ratio
 template <class T>
-static Common::Rectangle<T> maxRectangle(Common::Rectangle<T> window_area,
+static Common::Rectangle<T> MaxRectangle(Common::Rectangle<T> window_area,
                                          float screen_aspect_ratio) {
     float scale = std::min(static_cast<float>(window_area.GetWidth()),
                            window_area.GetHeight() / screen_aspect_ratio);
@@ -50,15 +50,15 @@ FramebufferLayout DefaultFrameLayout(u32 width, u32 height, bool swapped, bool u
     if (upright) {
         // Default layout gives equal screen sizes to the top and bottom screen
         screen_window_area = {0, 0, width / 2, height};
-        top_screen = maxRectangle(screen_window_area, TOP_SCREEN_UPRIGHT_ASPECT_RATIO);
-        bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_UPRIGHT_ASPECT_RATIO);
+        top_screen = MaxRectangle(screen_window_area, TOP_SCREEN_UPRIGHT_ASPECT_RATIO);
+        bot_screen = MaxRectangle(screen_window_area, BOT_SCREEN_UPRIGHT_ASPECT_RATIO);
         // both screens width are taken into account by dividing by 2
         emulation_aspect_ratio = TOP_SCREEN_UPRIGHT_ASPECT_RATIO / 2;
     } else {
         // Default layout gives equal screen sizes to the top and bottom screen
         screen_window_area = {0, 0, width, height / 2};
-        top_screen = maxRectangle(screen_window_area, TOP_SCREEN_ASPECT_RATIO);
-        bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_ASPECT_RATIO);
+        top_screen = MaxRectangle(screen_window_area, TOP_SCREEN_ASPECT_RATIO);
+        bot_screen = MaxRectangle(screen_window_area, BOT_SCREEN_ASPECT_RATIO);
         // both screens height are taken into account by multiplying by 2
         emulation_aspect_ratio = TOP_SCREEN_ASPECT_RATIO * 2;
     }
@@ -71,7 +71,7 @@ FramebufferLayout DefaultFrameLayout(u32 width, u32 height, bool swapped, bool u
             // Recalculate the bottom screen to account for the height difference between right and
             // left
             screen_window_area = {0, 0, top_screen.GetWidth(), height};
-            bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_UPRIGHT_ASPECT_RATIO);
+            bot_screen = MaxRectangle(screen_window_area, BOT_SCREEN_UPRIGHT_ASPECT_RATIO);
             bot_screen =
                 bot_screen.TranslateY((top_screen.GetHeight() - bot_screen.GetHeight()) / 2);
             if (swapped) {
@@ -96,7 +96,7 @@ FramebufferLayout DefaultFrameLayout(u32 width, u32 height, bool swapped, bool u
             // Recalculate the bottom screen to account for the width difference between top and
             // bottom
             screen_window_area = {0, 0, width, top_screen.GetHeight()};
-            bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_ASPECT_RATIO);
+            bot_screen = MaxRectangle(screen_window_area, BOT_SCREEN_ASPECT_RATIO);
             bot_screen = bot_screen.TranslateX((top_screen.GetWidth() - bot_screen.GetWidth()) / 2);
             if (swapped) {
                 bot_screen = bot_screen.TranslateY(height / 2 - bot_screen.GetHeight());
@@ -124,8 +124,8 @@ FramebufferLayout MobilePortraitFrameLayout(u32 width, u32 height, bool swapped)
     FramebufferLayout res{width, height, true, true, {}, {}};
     // Default layout gives equal screen sizes to the top and bottom screen
     Common::Rectangle<u32> screen_window_area{0, 0, width, height / 2};
-    Common::Rectangle<u32> top_screen = maxRectangle(screen_window_area, TOP_SCREEN_ASPECT_RATIO);
-    Common::Rectangle<u32> bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_ASPECT_RATIO);
+    Common::Rectangle<u32> top_screen = MaxRectangle(screen_window_area, TOP_SCREEN_ASPECT_RATIO);
+    Common::Rectangle<u32> bot_screen = MaxRectangle(screen_window_area, BOT_SCREEN_ASPECT_RATIO);
 
     float window_aspect_ratio = static_cast<float>(height) / width;
     // both screens height are taken into account by multiplying by 2
@@ -151,48 +151,6 @@ FramebufferLayout MobilePortraitFrameLayout(u32 width, u32 height, bool swapped)
     return res;
 }
 
-FramebufferLayout MobileLandscapeFrameLayout(u32 width, u32 height, bool swapped,
-                                             float scale_factor, bool center_vertical) {
-    ASSERT(width > 0);
-    ASSERT(height > 0);
-
-    FramebufferLayout res{width, height, true, true, {}, {}};
-    // Split the window into two parts. Give 4x width to the main screen and 1x width to the small
-    // To do that, find the total emulation box and maximize that based on window size
-    float window_aspect_ratio = static_cast<float>(height) / width;
-    float emulation_aspect_ratio =
-        swapped ? Core::kScreenBottomHeight * scale_factor /
-                      (Core::kScreenBottomWidth * scale_factor + Core::kScreenTopWidth)
-                : Core::kScreenTopHeight * scale_factor /
-                      (Core::kScreenTopWidth * scale_factor + Core::kScreenBottomWidth);
-    float large_screen_aspect_ratio = swapped ? BOT_SCREEN_ASPECT_RATIO : TOP_SCREEN_ASPECT_RATIO;
-    float small_screen_aspect_ratio = swapped ? TOP_SCREEN_ASPECT_RATIO : BOT_SCREEN_ASPECT_RATIO;
-
-    Common::Rectangle<u32> screen_window_area{0, 0, width, height};
-    Common::Rectangle<u32> total_rect = maxRectangle(screen_window_area, emulation_aspect_ratio);
-    Common::Rectangle<u32> large_screen = maxRectangle(total_rect, large_screen_aspect_ratio);
-    Common::Rectangle<u32> fourth_size_rect = total_rect.Scale(1.f / scale_factor);
-    Common::Rectangle<u32> small_screen = maxRectangle(fourth_size_rect, small_screen_aspect_ratio);
-
-    if (window_aspect_ratio < emulation_aspect_ratio) {
-        large_screen =
-            large_screen.TranslateX((screen_window_area.GetWidth() - total_rect.GetWidth()) / 2);
-    } else if (center_vertical) {
-        large_screen = large_screen.TranslateY((height - total_rect.GetHeight()) / 2);
-    }
-
-    // Shift the small screen to the bottom right corner
-    small_screen = small_screen.TranslateX(large_screen.right);
-    if (center_vertical) {
-        small_screen = small_screen.TranslateY(large_screen.GetHeight() + large_screen.top -
-                                               small_screen.GetHeight());
-    }
-
-    res.top_screen = swapped ? small_screen : large_screen;
-    res.bottom_screen = swapped ? large_screen : small_screen;
-    return res;
-}
-
 FramebufferLayout SingleFrameLayout(u32 width, u32 height, bool swapped, bool upright) {
     ASSERT(width > 0);
     ASSERT(height > 0);
@@ -205,13 +163,13 @@ FramebufferLayout SingleFrameLayout(u32 width, u32 height, bool swapped, bool up
     Common::Rectangle<u32> bot_screen;
     float emulation_aspect_ratio;
     if (upright) {
-        top_screen = maxRectangle(screen_window_area, TOP_SCREEN_UPRIGHT_ASPECT_RATIO);
-        bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_UPRIGHT_ASPECT_RATIO);
+        top_screen = MaxRectangle(screen_window_area, TOP_SCREEN_UPRIGHT_ASPECT_RATIO);
+        bot_screen = MaxRectangle(screen_window_area, BOT_SCREEN_UPRIGHT_ASPECT_RATIO);
         emulation_aspect_ratio =
             (swapped) ? BOT_SCREEN_UPRIGHT_ASPECT_RATIO : TOP_SCREEN_UPRIGHT_ASPECT_RATIO;
     } else {
-        top_screen = maxRectangle(screen_window_area, TOP_SCREEN_ASPECT_RATIO);
-        bot_screen = maxRectangle(screen_window_area, BOT_SCREEN_ASPECT_RATIO);
+        top_screen = MaxRectangle(screen_window_area, TOP_SCREEN_ASPECT_RATIO);
+        bot_screen = MaxRectangle(screen_window_area, BOT_SCREEN_ASPECT_RATIO);
         emulation_aspect_ratio = (swapped) ? BOT_SCREEN_ASPECT_RATIO : TOP_SCREEN_ASPECT_RATIO;
     }
 
@@ -232,7 +190,7 @@ FramebufferLayout SingleFrameLayout(u32 width, u32 height, bool swapped, bool up
 }
 
 FramebufferLayout LargeFrameLayout(u32 width, u32 height, bool swapped, bool upright,
-                                   float scale_factor) {
+                                   float scale_factor, VerticalAlignment vertical_alignment) {
     ASSERT(width > 0);
     ASSERT(height > 0);
 
@@ -274,10 +232,10 @@ FramebufferLayout LargeFrameLayout(u32 width, u32 height, bool swapped, bool upr
     }
 
     Common::Rectangle<u32> screen_window_area{0, 0, width, height};
-    Common::Rectangle<u32> total_rect = maxRectangle(screen_window_area, emulation_aspect_ratio);
-    Common::Rectangle<u32> large_screen = maxRectangle(total_rect, large_screen_aspect_ratio);
-    Common::Rectangle<u32> fourth_size_rect = total_rect.Scale(1.f / scale_factor);
-    Common::Rectangle<u32> small_screen = maxRectangle(fourth_size_rect, small_screen_aspect_ratio);
+    Common::Rectangle<u32> total_rect = MaxRectangle(screen_window_area, emulation_aspect_ratio);
+    Common::Rectangle<u32> large_screen = MaxRectangle(total_rect, large_screen_aspect_ratio);
+    Common::Rectangle<u32> scaled_rect = total_rect.Scale(1.f / scale_factor);
+    Common::Rectangle<u32> small_screen = MaxRectangle(scaled_rect, small_screen_aspect_ratio);
 
     if (window_aspect_ratio < emulation_aspect_ratio) {
         large_screen = large_screen.TranslateX((width - total_rect.GetWidth()) / 2);
@@ -286,13 +244,46 @@ FramebufferLayout LargeFrameLayout(u32 width, u32 height, bool swapped, bool upr
     }
     if (upright) {
         large_screen = large_screen.TranslateY(small_screen.GetHeight());
-        small_screen = small_screen.TranslateX(large_screen.right - small_screen.GetWidth())
-                           .TranslateY(large_screen.top - small_screen.GetHeight());
+        small_screen = small_screen.TranslateY(large_screen.top - small_screen.GetHeight());
+        switch (vertical_alignment) {
+        case VerticalAlignment::Top:
+            // Shift the small screen to the top right corner
+            small_screen = small_screen.TranslateX(large_screen.left);
+            break;
+        case VerticalAlignment::Middle:
+            // Shift the small screen to the center right
+            small_screen = small_screen.TranslateX(
+                ((large_screen.GetWidth() - small_screen.GetWidth()) / 2) + large_screen.left);
+            break;
+        case VerticalAlignment::Bottom:
+            // Shift the small screen to the bottom right corner
+            small_screen = small_screen.TranslateX(large_screen.right - small_screen.GetWidth());
+            break;
+        default:
+            UNREACHABLE();
+            break;
+        }
+
     } else {
-        // Shift the small screen to the bottom right corner
-        small_screen =
-            small_screen.TranslateX(large_screen.right)
-                .TranslateY(large_screen.GetHeight() + large_screen.top - small_screen.GetHeight());
+        small_screen = small_screen.TranslateX(large_screen.right);
+        switch (vertical_alignment) {
+        case VerticalAlignment::Top:
+            // Shift the small screen to the top right corner
+            small_screen = small_screen.TranslateY(large_screen.top);
+            break;
+        case VerticalAlignment::Middle:
+            // Shift the small screen to the center right
+            small_screen = small_screen.TranslateY(
+                ((large_screen.GetHeight() - small_screen.GetHeight()) / 2) + large_screen.top);
+            break;
+        case VerticalAlignment::Bottom:
+            // Shift the small screen to the bottom right corner
+            small_screen = small_screen.TranslateY(large_screen.bottom - small_screen.GetHeight());
+            break;
+        default:
+            UNREACHABLE();
+            break;
+        }
     }
     res.top_screen = swapped ? small_screen : large_screen;
     res.bottom_screen = swapped ? large_screen : small_screen;
@@ -331,11 +322,11 @@ FramebufferLayout HybridScreenLayout(u32 width, u32 height, bool swapped, bool u
     }
 
     Common::Rectangle<u32> screen_window_area{0, 0, width, height};
-    Common::Rectangle<u32> total_rect = maxRectangle(screen_window_area, hybrid_area_aspect_ratio);
-    Common::Rectangle<u32> large_main_screen = maxRectangle(total_rect, main_screen_aspect_ratio);
+    Common::Rectangle<u32> total_rect = MaxRectangle(screen_window_area, hybrid_area_aspect_ratio);
+    Common::Rectangle<u32> large_main_screen = MaxRectangle(total_rect, main_screen_aspect_ratio);
     Common::Rectangle<u32> side_rect = total_rect.Scale(1.f / scale_factor);
-    Common::Rectangle<u32> small_top_screen = maxRectangle(side_rect, top_screen_aspect_ratio);
-    Common::Rectangle<u32> small_bottom_screen = maxRectangle(side_rect, bot_screen_aspect_ratio);
+    Common::Rectangle<u32> small_top_screen = MaxRectangle(side_rect, top_screen_aspect_ratio);
+    Common::Rectangle<u32> small_bottom_screen = MaxRectangle(side_rect, bot_screen_aspect_ratio);
 
     if (window_aspect_ratio < hybrid_area_aspect_ratio) {
         large_main_screen = large_main_screen.TranslateX((width - total_rect.GetWidth()) / 2);
@@ -373,54 +364,6 @@ FramebufferLayout HybridScreenLayout(u32 width, u32 height, bool swapped, bool u
     return res;
 }
 
-FramebufferLayout SideFrameLayout(u32 width, u32 height, bool swapped, bool upright) {
-    ASSERT(width > 0);
-    ASSERT(height > 0);
-
-    FramebufferLayout res{width, height, true, true, {}, {}, !upright};
-
-    // Aspect ratio of both screens side by side
-    float emulation_aspect_ratio =
-        upright ? static_cast<float>(Core::kScreenTopWidth + Core::kScreenBottomWidth) /
-                      Core::kScreenTopHeight
-                : static_cast<float>(Core::kScreenTopHeight) /
-                      (Core::kScreenTopWidth + Core::kScreenBottomWidth);
-
-    float window_aspect_ratio = static_cast<float>(height) / width;
-    Common::Rectangle<u32> screen_window_area{0, 0, width, height};
-    // Find largest Rectangle that can fit in the window size with the given aspect ratio
-    Common::Rectangle<u32> screen_rect = maxRectangle(screen_window_area, emulation_aspect_ratio);
-    // Find sizes of top and bottom screen
-    Common::Rectangle<u32> top_screen =
-        upright ? maxRectangle(screen_rect, TOP_SCREEN_UPRIGHT_ASPECT_RATIO)
-                : maxRectangle(screen_rect, TOP_SCREEN_ASPECT_RATIO);
-    Common::Rectangle<u32> bot_screen =
-        upright ? maxRectangle(screen_rect, BOT_SCREEN_UPRIGHT_ASPECT_RATIO)
-                : maxRectangle(screen_rect, BOT_SCREEN_ASPECT_RATIO);
-
-    if (window_aspect_ratio < emulation_aspect_ratio) {
-        // Apply borders to the left and right sides of the window.
-        u32 shift_horizontal = (screen_window_area.GetWidth() - screen_rect.GetWidth()) / 2;
-        top_screen = top_screen.TranslateX(shift_horizontal);
-        bot_screen = bot_screen.TranslateX(shift_horizontal);
-    } else {
-        // Window is narrower than the emulation content => apply borders to the top and bottom
-        u32 shift_vertical = (screen_window_area.GetHeight() - screen_rect.GetHeight()) / 2;
-        top_screen = top_screen.TranslateY(shift_vertical);
-        bot_screen = bot_screen.TranslateY(shift_vertical);
-    }
-    if (upright) {
-        // Leave the top screen at the top if we are swapped.
-        res.top_screen = swapped ? top_screen : top_screen.TranslateY(bot_screen.GetHeight());
-        res.bottom_screen = swapped ? bot_screen.TranslateY(top_screen.GetHeight()) : bot_screen;
-    } else {
-        // Move the top screen to the right if we are swapped.
-        res.top_screen = swapped ? top_screen.TranslateX(bot_screen.GetWidth()) : top_screen;
-        res.bottom_screen = swapped ? bot_screen : bot_screen.TranslateX(top_screen.GetWidth());
-    }
-    return res;
-}
-
 FramebufferLayout SeparateWindowsLayout(u32 width, u32 height, bool is_secondary, bool upright) {
     // When is_secondary is true, we disable the top screen, and enable the bottom screen.
     // The same logic is found in the SingleFrameLayout using the is_swapped bool.
@@ -454,131 +397,103 @@ FramebufferLayout CustomFrameLayout(u32 width, u32 height, bool is_swapped) {
 }
 
 FramebufferLayout FrameLayoutFromResolutionScale(u32 res_scale, bool is_secondary) {
-    FramebufferLayout layout;
     if (Settings::values.custom_layout.GetValue() == true) {
-        layout = CustomFrameLayout(std::max(Settings::values.custom_top_right.GetValue(),
-                                            Settings::values.custom_bottom_right.GetValue()),
-                                   std::max(Settings::values.custom_top_bottom.GetValue(),
-                                            Settings::values.custom_bottom_bottom.GetValue()),
-                                   Settings::values.swap_screen.GetValue());
-    } else {
-        int width, height;
-        switch (Settings::values.layout_option.GetValue()) {
-        case Settings::LayoutOption::SingleScreen:
+        return CustomFrameLayout(std::max(Settings::values.custom_top_right.GetValue(),
+                                          Settings::values.custom_bottom_right.GetValue()),
+                                 std::max(Settings::values.custom_top_bottom.GetValue(),
+                                          Settings::values.custom_bottom_bottom.GetValue()),
+                                 Settings::values.swap_screen.GetValue());
+    }
+
+    int width, height;
+    switch (Settings::values.layout_option.GetValue()) {
+    case Settings::LayoutOption::SingleScreen:
 #ifndef ANDROID
-        case Settings::LayoutOption::SeparateWindows:
+    case Settings::LayoutOption::SeparateWindows:
 #endif
-        {
-            const bool swap_screens = is_secondary || Settings::values.swap_screen.GetValue();
-            if (Settings::values.upright_screen.GetValue()) {
-                if (swap_screens) {
-                    width = Core::kScreenBottomHeight * res_scale;
-                    height = Core::kScreenBottomWidth * res_scale;
-                } else {
-                    width = Core::kScreenTopHeight * res_scale;
-                    height = Core::kScreenTopWidth * res_scale;
-                }
-            } else {
-                if (swap_screens) {
-                    width = Core::kScreenBottomWidth * res_scale;
-                    height = Core::kScreenBottomHeight * res_scale;
-                } else {
-                    width = Core::kScreenTopWidth * res_scale;
-                    height = Core::kScreenTopHeight * res_scale;
-                }
-            }
-            layout = SingleFrameLayout(width, height, swap_screens,
-                                       Settings::values.upright_screen.GetValue());
-            break;
-        }
-        case Settings::LayoutOption::LargeScreen:
-            if (Settings::values.upright_screen.GetValue()) {
-                if (Settings::values.swap_screen.GetValue()) {
-                    width = Core::kScreenBottomHeight * res_scale;
-                    height =
-                        (Core::kScreenBottomWidth +
-                         static_cast<int>(Core::kScreenTopWidth /
-                                          Settings::values.large_screen_proportion.GetValue())) *
-                        res_scale;
-                } else {
-                    width = Core::kScreenTopHeight * res_scale;
-                    height =
-                        (Core::kScreenTopWidth +
-                         static_cast<int>(Core::kScreenBottomWidth /
-                                          Settings::values.large_screen_proportion.GetValue())) *
-                        res_scale;
-                }
-            } else {
-                if (Settings::values.swap_screen.GetValue()) {
-                    width = (Core::kScreenBottomWidth +
-                             Core::kScreenTopWidth /
-                                 static_cast<int>(
-                                     Settings::values.large_screen_proportion.GetValue())) *
-                            res_scale;
-                    height = Core::kScreenBottomHeight * res_scale;
-                } else {
-                    width = (Core::kScreenTopWidth +
-                             Core::kScreenBottomWidth /
-                                 static_cast<int>(
-                                     Settings::values.large_screen_proportion.GetValue())) *
-                            res_scale;
-                    height = Core::kScreenTopHeight * res_scale;
-                }
-            }
-            layout = LargeFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
-                                      Settings::values.upright_screen.GetValue(),
-                                      Settings::values.large_screen_proportion.GetValue());
-            break;
-        case Settings::LayoutOption::SideScreen:
-            if (Settings::values.upright_screen.GetValue()) {
-                width = Core::kScreenTopHeight * res_scale;
-                height = (Core::kScreenTopWidth + Core::kScreenBottomWidth) * res_scale;
-            } else {
-                width = (Core::kScreenTopWidth + Core::kScreenBottomWidth) * res_scale;
-                height = Core::kScreenTopHeight * res_scale;
-            }
-            layout = SideFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
-                                     Settings::values.upright_screen.GetValue());
-            break;
-        case Settings::LayoutOption::MobilePortrait:
+    {
+        const bool swap_screens = is_secondary || Settings::values.swap_screen.GetValue();
+        if (swap_screens) {
+            width = Core::kScreenBottomWidth * res_scale;
+            height = Core::kScreenBottomHeight * res_scale;
+        } else {
             width = Core::kScreenTopWidth * res_scale;
-            height = (Core::kScreenTopHeight + Core::kScreenBottomHeight) * res_scale;
-            layout =
-                MobilePortraitFrameLayout(width, height, Settings::values.swap_screen.GetValue());
-            break;
-        case Settings::LayoutOption::MobileLandscape:
-            if (Settings::values.swap_screen.GetValue()) {
-                width =
-                    (Core::kScreenBottomWidth + static_cast<int>(Core::kScreenTopWidth / 2.25f)) *
-                    res_scale;
-                height = Core::kScreenBottomHeight * res_scale;
-            } else {
-                width =
-                    (Core::kScreenTopWidth + static_cast<int>(Core::kScreenBottomWidth / 2.25f)) *
-                    res_scale;
-                height = Core::kScreenTopHeight * res_scale;
-            }
-            layout = MobileLandscapeFrameLayout(
-                width, height, Settings::values.swap_screen.GetValue(), 2.25f, false);
-            break;
-        case Settings::LayoutOption::Default:
-        default:
-            if (Settings::values.upright_screen.GetValue()) {
-                width = (Core::kScreenTopHeight + Core::kScreenBottomHeight) * res_scale;
-                height = Core::kScreenTopWidth * res_scale;
-            } else {
-                width = Core::kScreenTopWidth * res_scale;
-                height = (Core::kScreenTopHeight + Core::kScreenBottomHeight) * res_scale;
-            }
-            layout = DefaultFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
-                                        Settings::values.upright_screen.GetValue());
-            break;
+            height = Core::kScreenTopHeight * res_scale;
         }
+        if (Settings::values.upright_screen.GetValue()) {
+            std::swap(width, height);
+        }
+        return SingleFrameLayout(width, height, swap_screens,
+                                 Settings::values.upright_screen.GetValue());
     }
-    if (Settings::values.render_3d.GetValue() == Settings::StereoRenderOption::CardboardVR) {
-        layout = Layout::GetCardboardSettings(layout);
+
+    case Settings::LayoutOption::LargeScreen:
+        if (Settings::values.swap_screen.GetValue()) {
+            width = (Core::kScreenBottomWidth +
+                     Core::kScreenTopWidth /
+                         static_cast<int>(Settings::values.large_screen_proportion.GetValue())) *
+                    res_scale;
+            height = Core::kScreenBottomHeight * res_scale;
+        } else {
+            width = (Core::kScreenTopWidth +
+                     Core::kScreenBottomWidth /
+                         static_cast<int>(Settings::values.large_screen_proportion.GetValue())) *
+                    res_scale;
+            height = Core::kScreenTopHeight * res_scale;
+        }
+        if (Settings::values.upright_screen.GetValue()) {
+            std::swap(width, height);
+        }
+        return LargeFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
+                                Settings::values.upright_screen.GetValue(),
+                                Settings::values.large_screen_proportion.GetValue(),
+                                VerticalAlignment::Bottom);
+
+    case Settings::LayoutOption::SideScreen:
+        width = (Core::kScreenTopWidth + Core::kScreenBottomWidth) * res_scale;
+        height = Core::kScreenTopHeight * res_scale;
+
+        if (Settings::values.upright_screen.GetValue()) {
+            std::swap(width, height);
+        }
+        return LargeFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
+                                Settings::values.upright_screen.GetValue(), 1,
+                                VerticalAlignment::Middle);
+
+    case Settings::LayoutOption::MobilePortrait:
+        width = Core::kScreenTopWidth * res_scale;
+        height = (Core::kScreenTopHeight + Core::kScreenBottomHeight) * res_scale;
+        return MobilePortraitFrameLayout(width, height, Settings::values.swap_screen.GetValue());
+
+    case Settings::LayoutOption::MobileLandscape: {
+        constexpr float large_screen_proportion = 2.25f;
+        if (Settings::values.swap_screen.GetValue()) {
+            width = (Core::kScreenBottomWidth +
+                     static_cast<int>(Core::kScreenTopWidth / large_screen_proportion)) *
+                    res_scale;
+            height = Core::kScreenBottomHeight * res_scale;
+        } else {
+            width = (Core::kScreenTopWidth +
+                     static_cast<int>(Core::kScreenBottomWidth / large_screen_proportion)) *
+                    res_scale;
+            height = Core::kScreenTopHeight * res_scale;
+        }
+        return LargeFrameLayout(width, height, Settings::values.swap_screen.GetValue(), false,
+                                large_screen_proportion, VerticalAlignment::Top);
     }
-    return layout;
+
+    case Settings::LayoutOption::Default:
+    default:
+        width = Core::kScreenTopWidth * res_scale;
+        height = (Core::kScreenTopHeight + Core::kScreenBottomHeight) * res_scale;
+
+        if (Settings::values.upright_screen.GetValue()) {
+            std::swap(width, height);
+        }
+        return DefaultFrameLayout(width, height, Settings::values.swap_screen.GetValue(),
+                                  Settings::values.upright_screen.GetValue());
+    }
+    UNREACHABLE();
 }
 
 FramebufferLayout GetCardboardSettings(const FramebufferLayout& layout) {

src/core/frontend/framebuffer_layout.h

@@ -20,6 +20,31 @@ enum class DisplayOrientation {
     PortraitFlipped,  // 3DS rotated 270 degrees counter-clockwise
 };
 
+/// Describes the vertical alignment of the top and bottom screens in LargeFrameLayout
+/// Top
+/// +-------------+-----+
+/// |             |     |
+/// |             +-----+
+/// |             |
+/// +-------------+
+/// Middle
+/// +-------------+
+/// |             +-----+
+/// |             |     |
+/// |             +-----+
+/// +-------------+
+/// Bottom
+/// +-------------+
+/// |             |
+/// |             +-----+
+/// |             |     |
+/// +-------------+-----+
+enum class VerticalAlignment {
+    Top,
+    Middle,
+    Bottom,
+};
+
 /// Describes the horizontal coordinates for the right eye screen when using Cardboard VR
 struct CardboardSettings {
     u32 top_screen_right_eye;
@@ -43,7 +68,7 @@ struct FramebufferLayout {
     CardboardSettings cardboard;
 
     /**
-     * Returns the ration of pixel size of the top screen, compared to the native size of the 3DS
+     * Returns the ratio of pixel size of the top screen, compared to the native size of the 3DS
      * screen.
      */
     u32 GetScalingRatio() const;
@@ -54,6 +79,7 @@ struct FramebufferLayout {
  * @param width Window framebuffer width in pixels
  * @param height Window framebuffer height in pixels
  * @param is_swapped if true, the bottom screen will be displayed above the top screen
+ * @param upright if true, the screens will be rotated 90 degrees anti-clockwise
  * @return Newly created FramebufferLayout object with default screen regions initialized
  */
 FramebufferLayout DefaultFrameLayout(u32 width, u32 height, bool is_swapped, bool upright);
@@ -67,25 +93,12 @@ FramebufferLayout DefaultFrameLayout(u32 width, u32 height, bool is_swapped, boo
  */
 FramebufferLayout MobilePortraitFrameLayout(u32 width, u32 height, bool is_swapped);
 
-/**
- * Factory method for constructing a Frame with the a 4x size Top screen with a 1x size bottom
- * screen on the right
- * This is useful in particular because it matches well with a 1920x1080 resolution monitor
- * @param width Window framebuffer width in pixels
- * @param height Window framebuffer height in pixels
- * @param is_swapped if true, the bottom screen will be the large display
- * @param scale_factor Scale factor to use for bottom screen with respect to top screen
- * @param center_vertical When true, centers the top and bottom screens vertically
- * @return Newly created FramebufferLayout object with default screen regions initialized
- */
-FramebufferLayout MobileLandscapeFrameLayout(u32 width, u32 height, bool is_swapped,
-                                             float scale_factor, bool center_vertical);
-
 /**
  * Factory method for constructing a FramebufferLayout with only the top or bottom screen
  * @param width Window framebuffer width in pixels
  * @param height Window framebuffer height in pixels
  * @param is_swapped if true, the bottom screen will be displayed (and the top won't be displayed)
+ * @param upright if true, the screens will be rotated 90 degrees anti-clockwise
  * @return Newly created FramebufferLayout object with default screen regions initialized
  */
 FramebufferLayout SingleFrameLayout(u32 width, u32 height, bool is_swapped, bool upright);
@@ -97,32 +110,25 @@ FramebufferLayout SingleFrameLayout(u32 width, u32 height, bool is_swapped, bool
  * @param width Window framebuffer width in pixels
  * @param height Window framebuffer height in pixels
  * @param is_swapped if true, the bottom screen will be the large display
+ * @param upright if true, the screens will be rotated 90 degrees anti-clockwise
  * @param scale_factor The ratio between the large screen with respect to the smaller screen
+ * @param vertical_alignment The vertical alignment of the smaller screen relative to the larger
+ * screen
  * @return Newly created FramebufferLayout object with default screen regions initialized
  */
 FramebufferLayout LargeFrameLayout(u32 width, u32 height, bool is_swapped, bool upright,
-                                   float scale_factor);
+                                   float scale_factor, VerticalAlignment vertical_alignment);
 /**
  * Factory method for constructing a frame with 2.5 times bigger top screen on the right,
  * and 1x top and bottom screen on the left
  * @param width Window framebuffer width in pixels
  * @param height Window framebuffer height in pixels
  * @param is_swapped if true, the bottom screen will be the large display
+ * @param upright if true, the screens will be rotated 90 degrees anti-clockwise
  * @return Newly created FramebufferLayout object with default screen regions initialized
  */
 FramebufferLayout HybridScreenLayout(u32 width, u32 height, bool swapped, bool upright);
 
-/**
- * Factory method for constructing a Frame with the Top screen and bottom
- * screen side by side
- * This is useful for devices with small screens, like the GPDWin
- * @param width Window framebuffer width in pixels
- * @param height Window framebuffer height in pixels
- * @param is_swapped if true, the bottom screen will be the left display
- * @return Newly created FramebufferLayout object with default screen regions initialized
- */
-FramebufferLayout SideFrameLayout(u32 width, u32 height, bool is_swapped, bool upright);
-
 /**
  * Factory method for constructing a Frame with the Top screen and bottom
  * screen on separate windows

src/core/hle/applets/applet.cpp

@@ -5,97 +5,16 @@
 #include <cstddef>
 #include <memory>
 #include <type_traits>
-#include <unordered_map>
 #include <utility>
 #include "common/assert.h"
 #include "common/common_types.h"
 #include "core/core.h"
 #include "core/core_timing.h"
 #include "core/hle/applets/applet.h"
-#include "core/hle/applets/erreula.h"
-#include "core/hle/applets/mii_selector.h"
-#include "core/hle/applets/mint.h"
-#include "core/hle/applets/swkbd.h"
 #include "core/hle/result.h"
 
 namespace HLE::Applets {
 
-static std::unordered_map<Service::APT::AppletId, std::shared_ptr<Applet>> applets;
-/// The CoreTiming event identifier for the Applet update callback.
-static Core::TimingEventType* applet_update_event = nullptr;
-/// The interval at which the Applet update callback will be called, 16.6ms
-static const u64 applet_update_interval_us = 16666;
-
-ResultCode Applet::Create(Service::APT::AppletId id, Service::APT::AppletId parent, bool preload,
-                          const std::shared_ptr<Service::APT::AppletManager>& manager) {
-    switch (id) {
-    case Service::APT::AppletId::SoftwareKeyboard1:
-    case Service::APT::AppletId::SoftwareKeyboard2:
-        applets[id] = std::make_shared<SoftwareKeyboard>(id, parent, preload, manager);
-        break;
-    case Service::APT::AppletId::Ed1:
-    case Service::APT::AppletId::Ed2:
-        applets[id] = std::make_shared<MiiSelector>(id, parent, preload, manager);
-        break;
-    case Service::APT::AppletId::Error:
-    case Service::APT::AppletId::Error2:
-        applets[id] = std::make_shared<ErrEula>(id, parent, preload, manager);
-        break;
-    case Service::APT::AppletId::Mint:
-    case Service::APT::AppletId::Mint2:
-        applets[id] = std::make_shared<Mint>(id, parent, preload, manager);
-        break;
-    default:
-        LOG_ERROR(Service_APT, "Could not create applet {}", id);
-        // TODO(Subv): Find the right error code
-        return ResultCode(ErrorDescription::NotFound, ErrorModule::Applet,
-                          ErrorSummary::NotSupported, ErrorLevel::Permanent);
-    }
-
-    Service::APT::AppletAttributes attributes;
-    attributes.applet_pos.Assign(Service::APT::AppletPos::AutoLibrary);
-    attributes.is_home_menu.Assign(false);
-    const auto lock_handle_data = manager->GetLockHandle(attributes);
-
-    manager->Initialize(id, lock_handle_data->corrected_attributes);
-    manager->Enable(lock_handle_data->corrected_attributes);
-    if (preload) {
-        manager->FinishPreloadingLibraryApplet(id);
-    }
-
-    // Schedule the update event
-    Core::System::GetInstance().CoreTiming().ScheduleEvent(
-        usToCycles(applet_update_interval_us), applet_update_event, static_cast<u64>(id));
-    return RESULT_SUCCESS;
-}
-
-std::shared_ptr<Applet> Applet::Get(Service::APT::AppletId id) {
-    auto itr = applets.find(id);
-    if (itr != applets.end())
-        return itr->second;
-    return nullptr;
-}
-
-/// Handles updating the current Applet every time it's called.
-static void AppletUpdateEvent(u64 applet_id, s64 cycles_late) {
-    const auto id = static_cast<Service::APT::AppletId>(applet_id);
-    const auto applet = Applet::Get(id);
-    ASSERT_MSG(applet != nullptr, "Applet doesn't exist! applet_id={:08X}", id);
-
-    if (applet->IsActive()) {
-        applet->Update();
-    }
-
-    // If the applet is still running after the last update, reschedule the event
-    if (applet->IsRunning()) {
-        Core::System::GetInstance().CoreTiming().ScheduleEvent(
-            usToCycles(applet_update_interval_us) - cycles_late, applet_update_event, applet_id);
-    } else {
-        // Otherwise the applet has terminated, in which case we should clean it up
-        applets[id] = nullptr;
-    }
-}
-
 bool Applet::IsRunning() const {
     return is_running;
 }
@@ -104,10 +23,10 @@ bool Applet::IsActive() const {
     return is_active;
 }
 
-ResultCode Applet::ReceiveParameter(const Service::APT::MessageParameter& parameter) {
+Result Applet::ReceiveParameter(const Service::APT::MessageParameter& parameter) {
     switch (parameter.signal) {
     case Service::APT::SignalType::Wakeup: {
-        ResultCode result = Start(parameter);
+        Result result = Start(parameter);
         if (!result.IsError()) {
             is_active = true;
         }
@@ -140,13 +59,4 @@ void Applet::CloseApplet(std::shared_ptr<Kernel::Object> object, const std::vect
     is_running = false;
 }
 
-void Init() {
-    // Register the applet update callback
-    applet_update_event = Core::System::GetInstance().CoreTiming().RegisterEvent(
-        "HLE Applet Update Event", AppletUpdateEvent);
-}
-
-void Shutdown() {
-    Core::System::GetInstance().CoreTiming().RemoveEvent(applet_update_event);
-}
 } // namespace HLE::Applets

src/core/hle/applets/applet.h

@@ -14,30 +14,12 @@ class Applet {
 public:
     virtual ~Applet() = default;
 
-    /**
-     * Creates an instance of the Applet subclass identified by the parameter.
-     * and stores it in a global map.
-     * @param id Id of the applet to create.
-     * @param parent Id of the applet's parent.
-     * @param preload Whether the applet is being preloaded.
-     * @returns ResultCode Whether the operation was successful or not.
-     */
-    static ResultCode Create(Service::APT::AppletId id, Service::APT::AppletId parent, bool preload,
-                             const std::shared_ptr<Service::APT::AppletManager>& manager);
-
-    /**
-     * Retrieves the Applet instance identified by the specified id.
-     * @param id Id of the Applet to retrieve.
-     * @returns Requested Applet or nullptr if not found.
-     */
-    static std::shared_ptr<Applet> Get(Service::APT::AppletId id);
-
     /**
      * Handles a parameter from the application.
      * @param parameter Parameter data to handle.
-     * @returns ResultCode Whether the operation was successful or not.
+     * @returns Result Whether the operation was successful or not.
      */
-    ResultCode ReceiveParameter(const Service::APT::MessageParameter& parameter);
+    Result ReceiveParameter(const Service::APT::MessageParameter& parameter);
 
     /**
      * Whether the applet is currently running.
@@ -55,29 +37,31 @@ public:
     virtual void Update() = 0;
 
 protected:
-    Applet(Service::APT::AppletId id, Service::APT::AppletId parent, bool preload,
-           std::weak_ptr<Service::APT::AppletManager> manager)
-        : id(id), parent(parent), preload(preload), manager(std::move(manager)) {}
+    Applet(Core::System& system, Service::APT::AppletId id, Service::APT::AppletId parent,
+           bool preload, std::weak_ptr<Service::APT::AppletManager> manager)
+        : system(system), id(id), parent(parent), preload(preload), manager(std::move(manager)) {}
 
     /**
      * Handles a parameter from the application.
      * @param parameter Parameter data to handle.
-     * @returns ResultCode Whether the operation was successful or not.
+     * @returns Result Whether the operation was successful or not.
      */
-    virtual ResultCode ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) = 0;
+    virtual Result ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) = 0;
 
     /**
      * Handles the Applet start event, triggered from the application.
      * @param parameter Parameter data to handle.
-     * @returns ResultCode Whether the operation was successful or not.
+     * @returns Result Whether the operation was successful or not.
      */
-    virtual ResultCode Start(const Service::APT::MessageParameter& parameter) = 0;
+    virtual Result Start(const Service::APT::MessageParameter& parameter) = 0;
 
     /**
      * Sends the LibAppletClosing signal to the application,
      * along with the relevant data buffers.
      */
-    virtual ResultCode Finalize() = 0;
+    virtual Result Finalize() = 0;
+
+    Core::System& system;
 
     Service::APT::AppletId id;                    ///< Id of this Applet
     Service::APT::AppletId parent;                ///< Id of this Applet's parent
@@ -97,9 +81,4 @@ private:
     std::weak_ptr<Service::APT::AppletManager> manager;
 };
 
-/// Initializes the HLE applets
-void Init();
-
-/// Shuts down the HLE applets
-void Shutdown();
 } // namespace HLE::Applets

src/core/hle/applets/erreula.cpp

@@ -9,12 +9,12 @@
 
 namespace HLE::Applets {
 
-ResultCode ErrEula::ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) {
+Result ErrEula::ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) {
     if (parameter.signal != Service::APT::SignalType::Request) {
         LOG_ERROR(Service_APT, "unsupported signal {}", parameter.signal);
         UNIMPLEMENTED();
         // TODO(Subv): Find the right error code
-        return ResultCode(-1);
+        return ResultUnknown;
     }
 
     // The LibAppJustStarted message contains a buffer with the size of the framebuffer shared
@@ -28,7 +28,7 @@ ResultCode ErrEula::ReceiveParameterImpl(const Service::APT::MessageParameter& p
     // TODO: allocated memory never released
     using Kernel::MemoryPermission;
     // Create a SharedMemory that directly points to this heap block.
-    framebuffer_memory = Core::System::GetInstance().Kernel().CreateSharedMemoryForApplet(
+    framebuffer_memory = system.Kernel().CreateSharedMemoryForApplet(
         0, capture_info.size, MemoryPermission::ReadWrite, MemoryPermission::ReadWrite,
         "ErrEula Memory");
 
@@ -40,10 +40,10 @@ ResultCode ErrEula::ReceiveParameterImpl(const Service::APT::MessageParameter& p
         .object = framebuffer_memory,
     });
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
-ResultCode ErrEula::Start(const Service::APT::MessageParameter& parameter) {
+Result ErrEula::Start(const Service::APT::MessageParameter& parameter) {
     startup_param = parameter.buffer;
 
     // TODO(Subv): Set the expected fields in the response buffer before resending it to the
@@ -52,14 +52,14 @@ ResultCode ErrEula::Start(const Service::APT::MessageParameter& parameter) {
 
     // Let the application know that we're closing.
     Finalize();
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
-ResultCode ErrEula::Finalize() {
+Result ErrEula::Finalize() {
     std::vector<u8> buffer(startup_param.size());
     std::fill(buffer.begin(), buffer.end(), 0);
     CloseApplet(nullptr, buffer);
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 void ErrEula::Update() {}

src/core/hle/applets/erreula.h

@@ -11,13 +11,13 @@ namespace HLE::Applets {
 
 class ErrEula final : public Applet {
 public:
-    explicit ErrEula(Service::APT::AppletId id, Service::APT::AppletId parent, bool preload,
-                     std::weak_ptr<Service::APT::AppletManager> manager)
-        : Applet(id, parent, preload, std::move(manager)) {}
+    explicit ErrEula(Core::System& system, Service::APT::AppletId id, Service::APT::AppletId parent,
+                     bool preload, std::weak_ptr<Service::APT::AppletManager> manager)
+        : Applet(system, id, parent, preload, std::move(manager)) {}
 
-    ResultCode ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) override;
-    ResultCode Start(const Service::APT::MessageParameter& parameter) override;
-    ResultCode Finalize() override;
+    Result ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) override;
+    Result Start(const Service::APT::MessageParameter& parameter) override;
+    Result Finalize() override;
     void Update() override;
 
 private:

src/core/hle/applets/mii_selector.cpp

@@ -17,12 +17,12 @@
 
 namespace HLE::Applets {
 
-ResultCode MiiSelector::ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) {
+Result MiiSelector::ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) {
     if (parameter.signal != Service::APT::SignalType::Request) {
         LOG_ERROR(Service_APT, "unsupported signal {}", parameter.signal);
         UNIMPLEMENTED();
         // TODO(Subv): Find the right error code
-        return ResultCode(-1);
+        return ResultUnknown;
     }
 
     // The LibAppJustStarted message contains a buffer with the size of the framebuffer shared
@@ -35,7 +35,7 @@ ResultCode MiiSelector::ReceiveParameterImpl(const Service::APT::MessageParamete
 
     using Kernel::MemoryPermission;
     // Create a SharedMemory that directly points to this heap block.
-    framebuffer_memory = Core::System::GetInstance().Kernel().CreateSharedMemoryForApplet(
+    framebuffer_memory = system.Kernel().CreateSharedMemoryForApplet(
         0, capture_info.size, MemoryPermission::ReadWrite, MemoryPermission::ReadWrite,
         "MiiSelector Memory");
 
@@ -47,23 +47,23 @@ ResultCode MiiSelector::ReceiveParameterImpl(const Service::APT::MessageParamete
         .object = framebuffer_memory,
     });
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
-ResultCode MiiSelector::Start(const Service::APT::MessageParameter& parameter) {
+Result MiiSelector::Start(const Service::APT::MessageParameter& parameter) {
     ASSERT_MSG(parameter.buffer.size() == sizeof(config),
                "The size of the parameter (MiiConfig) is wrong");
 
     std::memcpy(&config, parameter.buffer.data(), parameter.buffer.size());
 
     using namespace Frontend;
-    frontend_applet = Core::System::GetInstance().GetMiiSelector();
+    frontend_applet = system.GetMiiSelector();
     ASSERT(frontend_applet);
 
     MiiSelectorConfig frontend_config = ToFrontendConfig(config);
     frontend_applet->Setup(frontend_config);
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 void MiiSelector::Update() {
@@ -78,11 +78,11 @@ void MiiSelector::Update() {
     Finalize();
 }
 
-ResultCode MiiSelector::Finalize() {
+Result MiiSelector::Finalize() {
     std::vector<u8> buffer(sizeof(MiiResult));
     std::memcpy(buffer.data(), &result, buffer.size());
     CloseApplet(nullptr, buffer);
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 MiiResult MiiSelector::GetStandardMiiResult() {

src/core/hle/applets/mii_selector.h

@@ -62,13 +62,13 @@ ASSERT_REG_POSITION(guest_mii_name, 0x6C);
 
 class MiiSelector final : public Applet {
 public:
-    MiiSelector(Service::APT::AppletId id, Service::APT::AppletId parent, bool preload,
-                std::weak_ptr<Service::APT::AppletManager> manager)
-        : Applet(id, parent, preload, std::move(manager)) {}
+    MiiSelector(Core::System& system, Service::APT::AppletId id, Service::APT::AppletId parent,
+                bool preload, std::weak_ptr<Service::APT::AppletManager> manager)
+        : Applet(system, id, parent, preload, std::move(manager)) {}
 
-    ResultCode ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) override;
-    ResultCode Start(const Service::APT::MessageParameter& parameter) override;
-    ResultCode Finalize() override;
+    Result ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) override;
+    Result Start(const Service::APT::MessageParameter& parameter) override;
+    Result Finalize() override;
     void Update() override;
 
     static MiiResult GetStandardMiiResult();

src/core/hle/applets/mint.cpp

@@ -9,12 +9,12 @@
 
 namespace HLE::Applets {
 
-ResultCode Mint::ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) {
+Result Mint::ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) {
     if (parameter.signal != Service::APT::SignalType::Request) {
         LOG_ERROR(Service_APT, "unsupported signal {}", parameter.signal);
         UNIMPLEMENTED();
         // TODO(Subv): Find the right error code
-        return ResultCode(-1);
+        return ResultUnknown;
     }
 
     // The Request message contains a buffer with the size of the framebuffer shared
@@ -28,7 +28,7 @@ ResultCode Mint::ReceiveParameterImpl(const Service::APT::MessageParameter& para
     // TODO: allocated memory never released
     using Kernel::MemoryPermission;
     // Create a SharedMemory that directly points to this heap block.
-    framebuffer_memory = Core::System::GetInstance().Kernel().CreateSharedMemoryForApplet(
+    framebuffer_memory = system.Kernel().CreateSharedMemoryForApplet(
         0, capture_info.size, MemoryPermission::ReadWrite, MemoryPermission::ReadWrite,
         "Mint Memory");
 
@@ -40,10 +40,10 @@ ResultCode Mint::ReceiveParameterImpl(const Service::APT::MessageParameter& para
         .object = framebuffer_memory,
     });
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
-ResultCode Mint::Start(const Service::APT::MessageParameter& parameter) {
+Result Mint::Start(const Service::APT::MessageParameter& parameter) {
     startup_param = parameter.buffer;
 
     // TODO(Subv): Set the expected fields in the response buffer before resending it to the
@@ -52,14 +52,14 @@ ResultCode Mint::Start(const Service::APT::MessageParameter& parameter) {
 
     // Let the application know that we're closing
     Finalize();
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
-ResultCode Mint::Finalize() {
+Result Mint::Finalize() {
     std::vector<u8> buffer(startup_param.size());
     std::fill(buffer.begin(), buffer.end(), 0);
     CloseApplet(nullptr, buffer);
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 void Mint::Update() {}

src/core/hle/applets/mint.h

@@ -11,13 +11,13 @@ namespace HLE::Applets {
 
 class Mint final : public Applet {
 public:
-    explicit Mint(Service::APT::AppletId id, Service::APT::AppletId parent, bool preload,
-                  std::weak_ptr<Service::APT::AppletManager> manager)
-        : Applet(id, parent, preload, std::move(manager)) {}
+    explicit Mint(Core::System& system, Service::APT::AppletId id, Service::APT::AppletId parent,
+                  bool preload, std::weak_ptr<Service::APT::AppletManager> manager)
+        : Applet(system, id, parent, preload, std::move(manager)) {}
 
-    ResultCode ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) override;
-    ResultCode Start(const Service::APT::MessageParameter& parameter) override;
-    ResultCode Finalize() override;
+    Result ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) override;
+    Result Start(const Service::APT::MessageParameter& parameter) override;
+    Result Finalize() override;
     void Update() override;
 
 private:

src/core/hle/applets/swkbd.cpp

@@ -19,7 +19,7 @@
 
 namespace HLE::Applets {
 
-ResultCode SoftwareKeyboard::ReceiveParameterImpl(Service::APT::MessageParameter const& parameter) {
+Result SoftwareKeyboard::ReceiveParameterImpl(Service::APT::MessageParameter const& parameter) {
     switch (parameter.signal) {
     case Service::APT::SignalType::Request: {
         // The LibAppJustStarted message contains a buffer with the size of the framebuffer shared
@@ -32,7 +32,7 @@ ResultCode SoftwareKeyboard::ReceiveParameterImpl(Service::APT::MessageParameter
 
         using Kernel::MemoryPermission;
         // Create a SharedMemory that directly points to this heap block.
-        framebuffer_memory = Core::System::GetInstance().Kernel().CreateSharedMemoryForApplet(
+        framebuffer_memory = system.Kernel().CreateSharedMemoryForApplet(
             0, capture_info.size, MemoryPermission::ReadWrite, MemoryPermission::ReadWrite,
             "SoftwareKeyboard Memory");
 
@@ -44,7 +44,7 @@ ResultCode SoftwareKeyboard::ReceiveParameterImpl(Service::APT::MessageParameter
             .object = framebuffer_memory,
         });
 
-        return RESULT_SUCCESS;
+        return ResultSuccess;
     }
 
     case Service::APT::SignalType::Message: {
@@ -58,7 +58,7 @@ ResultCode SoftwareKeyboard::ReceiveParameterImpl(Service::APT::MessageParameter
         case SoftwareKeyboardCallbackResult::OK:
             // Finish execution
             Finalize();
-            return RESULT_SUCCESS;
+            return ResultSuccess;
 
         case SoftwareKeyboardCallbackResult::Close:
             // Let the frontend display error and quit
@@ -66,14 +66,14 @@ ResultCode SoftwareKeyboard::ReceiveParameterImpl(Service::APT::MessageParameter
             config.return_code = SoftwareKeyboardResult::BannedInput;
             config.text_offset = config.text_length = 0;
             Finalize();
-            return RESULT_SUCCESS;
+            return ResultSuccess;
 
         case SoftwareKeyboardCallbackResult::Continue:
             // Let the frontend display error and get input again
             // The input will be sent for validation again on next Update().
             frontend_applet->ShowError(Common::UTF16BufferToUTF8(config.callback_msg));
             frontend_applet->Execute(ToFrontendConfig(config));
-            return RESULT_SUCCESS;
+            return ResultSuccess;
 
         default:
             UNREACHABLE();
@@ -84,12 +84,12 @@ ResultCode SoftwareKeyboard::ReceiveParameterImpl(Service::APT::MessageParameter
         LOG_ERROR(Service_APT, "unsupported signal {}", parameter.signal);
         UNIMPLEMENTED();
         // TODO(Subv): Find the right error code
-        return ResultCode(-1);
+        return ResultUnknown;
     }
     }
 }
 
-ResultCode SoftwareKeyboard::Start(Service::APT::MessageParameter const& parameter) {
+Result SoftwareKeyboard::Start(Service::APT::MessageParameter const& parameter) {
     ASSERT_MSG(parameter.buffer.size() == sizeof(config),
                "The size of the parameter (SoftwareKeyboardConfig) is wrong");
 
@@ -99,12 +99,12 @@ ResultCode SoftwareKeyboard::Start(Service::APT::MessageParameter const& paramet
     DrawScreenKeyboard();
 
     using namespace Frontend;
-    frontend_applet = Core::System::GetInstance().GetSoftwareKeyboard();
+    frontend_applet = system.GetSoftwareKeyboard();
     ASSERT(frontend_applet);
 
     frontend_applet->Execute(ToFrontendConfig(config));
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 void SoftwareKeyboard::Update() {
@@ -166,12 +166,12 @@ void SoftwareKeyboard::DrawScreenKeyboard() {
     // TODO(Subv): Draw the HLE keyboard, for now just do nothing
 }
 
-ResultCode SoftwareKeyboard::Finalize() {
+Result SoftwareKeyboard::Finalize() {
     std::vector<u8> buffer(sizeof(SoftwareKeyboardConfig));
     std::memcpy(buffer.data(), &config, buffer.size());
     CloseApplet(nullptr, buffer);
     text_memory = nullptr;
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 Frontend::KeyboardConfig SoftwareKeyboard::ToFrontendConfig(

src/core/hle/applets/swkbd.h

@@ -175,13 +175,13 @@ static_assert(sizeof(SoftwareKeyboardConfig) == 0x400, "Software Keyboard Config
 
 class SoftwareKeyboard final : public Applet {
 public:
-    SoftwareKeyboard(Service::APT::AppletId id, Service::APT::AppletId parent, bool preload,
-                     std::weak_ptr<Service::APT::AppletManager> manager)
-        : Applet(id, parent, preload, std::move(manager)) {}
+    SoftwareKeyboard(Core::System& system, Service::APT::AppletId id, Service::APT::AppletId parent,
+                     bool preload, std::weak_ptr<Service::APT::AppletManager> manager)
+        : Applet(system, id, parent, preload, std::move(manager)) {}
 
-    ResultCode ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) override;
-    ResultCode Start(const Service::APT::MessageParameter& parameter) override;
-    ResultCode Finalize() override;
+    Result ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) override;
+    Result Start(const Service::APT::MessageParameter& parameter) override;
+    Result Finalize() override;
     void Update() override;
 
     /**

src/core/hle/ipc.h

@@ -20,8 +20,8 @@ constexpr std::size_t MAX_STATIC_BUFFERS = 16;
 // These errors are commonly returned by invalid IPC translations, so alias them here for
 // convenience.
 // TODO(yuriks): These will probably go away once translation is implemented inside the kernel.
-using Kernel::ERR_INVALID_BUFFER_DESCRIPTOR;
-constexpr auto ERR_INVALID_HANDLE = Kernel::ERR_INVALID_HANDLE_OS;
+using Kernel::ResultInvalidBufferDescriptor;
+constexpr auto ResultInvalidHandle = Kernel::ResultInvalidHandleOs;
 
 enum DescriptorType : u32 {
     // Buffer related descriptors types (mask : 0x0F)

src/core/hle/ipc_helpers.h

@@ -161,7 +161,7 @@ inline void RequestBuilder::Push(bool value) {
 }
 
 template <>
-inline void RequestBuilder::Push(ResultCode value) {
+inline void RequestBuilder::Push(Result value) {
     Push(value.raw);
 }
 
@@ -371,8 +371,8 @@ inline bool RequestParser::Pop() {
 }
 
 template <>
-inline ResultCode RequestParser::Pop() {
-    return ResultCode{Pop<u32>()};
+inline Result RequestParser::Pop() {
+    return Result{Pop<u32>()};
 }
 
 template <typename T>

src/core/hle/kernel/address_arbiter.cpp

@@ -108,8 +108,8 @@ void AddressArbiter::WakeUp(ThreadWakeupReason reason, std::shared_ptr<Thread> t
                           waiting_threads.end());
 };
 
-ResultCode AddressArbiter::ArbitrateAddress(std::shared_ptr<Thread> thread, ArbitrationType type,
-                                            VAddr address, s32 value, u64 nanoseconds) {
+Result AddressArbiter::ArbitrateAddress(std::shared_ptr<Thread> thread, ArbitrationType type,
+                                        VAddr address, s32 value, u64 nanoseconds) {
     switch (type) {
 
     // Signal thread(s) waiting for arbitrate address...
@@ -171,17 +171,16 @@ ResultCode AddressArbiter::ArbitrateAddress(std::shared_ptr<Thread> thread, Arbi
 
     default:
         LOG_ERROR(Kernel, "unknown type={}", type);
-        return ERR_INVALID_ENUM_VALUE_FND;
+        return ResultInvalidEnumValueFnd;
     }
 
     // The calls that use a timeout seem to always return a Timeout error even if they did not put
     // the thread to sleep
     if (type == ArbitrationType::WaitIfLessThanWithTimeout ||
         type == ArbitrationType::DecrementAndWaitIfLessThanWithTimeout) {
-
-        return RESULT_TIMEOUT;
+        return ResultTimeout;
     }
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 } // namespace Kernel

src/core/hle/kernel/address_arbiter.h

@@ -55,8 +55,8 @@ public:
     std::shared_ptr<ResourceLimit> resource_limit;
     std::string name; ///< Name of address arbiter object (optional)
 
-    ResultCode ArbitrateAddress(std::shared_ptr<Thread> thread, ArbitrationType type, VAddr address,
-                                s32 value, u64 nanoseconds);
+    Result ArbitrateAddress(std::shared_ptr<Thread> thread, ArbitrationType type, VAddr address,
+                            s32 value, u64 nanoseconds);
 
     class Callback;
 

src/core/hle/kernel/client_port.cpp

@@ -20,32 +20,31 @@ namespace Kernel {
 ClientPort::ClientPort(KernelSystem& kernel) : Object(kernel), kernel(kernel) {}
 ClientPort::~ClientPort() = default;
 
-ResultVal<std::shared_ptr<ClientSession>> ClientPort::Connect() {
+Result ClientPort::Connect(std::shared_ptr<ClientSession>* out_client_session) {
     // Note: Threads do not wait for the server endpoint to call
     // AcceptSession before returning from this call.
 
-    if (active_sessions >= max_sessions) {
-        return ERR_MAX_CONNECTIONS_REACHED;
-    }
+    R_UNLESS(active_sessions < max_sessions, ResultMaxConnectionsReached);
     active_sessions++;
 
     // Create a new session pair, let the created sessions inherit the parent port's HLE handler.
     auto [server, client] = kernel.CreateSessionPair(server_port->GetName(), SharedFrom(this));
 
-    if (server_port->hle_handler)
+    if (server_port->hle_handler) {
         server_port->hle_handler->ClientConnected(server);
-    else
+    } else {
         server_port->pending_sessions.push_back(server);
+    }
 
     // Wake the threads waiting on the ServerPort
     server_port->WakeupAllWaitingThreads();
 
-    return client;
+    *out_client_session = client;
+    return ResultSuccess;
 }
 
 void ClientPort::ConnectionClosed() {
     ASSERT(active_sessions > 0);
-
     --active_sessions;
 }
 

src/core/hle/kernel/client_port.h

@@ -46,7 +46,7 @@ public:
      * waiting on it to awake.
      * @returns ClientSession The client endpoint of the created Session pair, or error code.
      */
-    ResultVal<std::shared_ptr<ClientSession>> Connect();
+    Result Connect(std::shared_ptr<ClientSession>* out_client_session);
 
     /**
      * Signifies that a previously active connection has been closed,

src/core/hle/kernel/client_session.cpp

@@ -44,11 +44,10 @@ ClientSession::~ClientSession() {
     }
 }
 
-ResultCode ClientSession::SendSyncRequest(std::shared_ptr<Thread> thread) {
+Result ClientSession::SendSyncRequest(std::shared_ptr<Thread> thread) {
     // Keep ServerSession alive until we're done working with it.
     std::shared_ptr<ServerSession> server = SharedFrom(parent->server);
-    if (server == nullptr)
-        return ERR_SESSION_CLOSED_BY_REMOTE;
+    R_UNLESS(server, ResultSessionClosed);
 
     // Signal the server session that new data is available
     return server->HandleSyncRequest(std::move(thread));

src/core/hle/kernel/client_session.h

@@ -42,9 +42,9 @@ public:
     /**
      * Sends an SyncRequest from the current emulated thread.
      * @param thread Thread that initiated the request.
-     * @return ResultCode of the operation.
+     * @return Result of the operation.
      */
-    ResultCode SendSyncRequest(std::shared_ptr<Thread> thread);
+    Result SendSyncRequest(std::shared_ptr<Thread> thread);
 
     std::string name; ///< Name of client port (optional)
 

src/core/hle/kernel/errors.h

@@ -31,85 +31,83 @@ enum {
 // WARNING: The kernel is quite inconsistent in it's usage of errors code. Make sure to always
 // double check that the code matches before re-using the constant.
 
-constexpr ResultCode ERR_OUT_OF_HANDLES(ErrCodes::OutOfHandles, ErrorModule::Kernel,
-                                        ErrorSummary::OutOfResource,
-                                        ErrorLevel::Permanent); // 0xD8600413
-constexpr ResultCode ERR_SESSION_CLOSED_BY_REMOTE(ErrCodes::SessionClosedByRemote, ErrorModule::OS,
-                                                  ErrorSummary::Canceled,
-                                                  ErrorLevel::Status); // 0xC920181A
-constexpr ResultCode ERR_PORT_NAME_TOO_LONG(ErrCodes::PortNameTooLong, ErrorModule::OS,
-                                            ErrorSummary::InvalidArgument,
-                                            ErrorLevel::Usage); // 0xE0E0181E
-constexpr ResultCode ERR_WRONG_PERMISSION(ErrCodes::WrongPermission, ErrorModule::OS,
-                                          ErrorSummary::WrongArgument, ErrorLevel::Permanent);
-constexpr ResultCode ERR_INVALID_BUFFER_DESCRIPTOR(ErrCodes::InvalidBufferDescriptor,
-                                                   ErrorModule::OS, ErrorSummary::WrongArgument,
-                                                   ErrorLevel::Permanent);
-constexpr ResultCode ERR_MAX_CONNECTIONS_REACHED(ErrCodes::MaxConnectionsReached, ErrorModule::OS,
-                                                 ErrorSummary::WouldBlock,
-                                                 ErrorLevel::Temporary); // 0xD0401834
-
-constexpr ResultCode ERR_NOT_AUTHORIZED(ErrorDescription::NotAuthorized, ErrorModule::OS,
-                                        ErrorSummary::WrongArgument,
-                                        ErrorLevel::Permanent); // 0xD9001BEA
-constexpr ResultCode ERR_INVALID_ENUM_VALUE(ErrorDescription::InvalidEnumValue, ErrorModule::Kernel,
-                                            ErrorSummary::InvalidArgument,
-                                            ErrorLevel::Permanent); // 0xD8E007ED
-constexpr ResultCode ERR_INVALID_ENUM_VALUE_FND(ErrorDescription::InvalidEnumValue,
-                                                ErrorModule::FND, ErrorSummary::InvalidArgument,
-                                                ErrorLevel::Permanent); // 0xD8E093ED
-constexpr ResultCode ERR_INVALID_COMBINATION(ErrorDescription::InvalidCombination, ErrorModule::OS,
-                                             ErrorSummary::InvalidArgument,
-                                             ErrorLevel::Usage); // 0xE0E01BEE
-constexpr ResultCode ERR_INVALID_COMBINATION_KERNEL(ErrorDescription::InvalidCombination,
-                                                    ErrorModule::Kernel,
-                                                    ErrorSummary::WrongArgument,
-                                                    ErrorLevel::Permanent); // 0xD90007EE
-constexpr ResultCode ERR_MISALIGNED_ADDRESS(ErrorDescription::MisalignedAddress, ErrorModule::OS,
-                                            ErrorSummary::InvalidArgument,
-                                            ErrorLevel::Usage); // 0xE0E01BF1
-constexpr ResultCode ERR_MISALIGNED_SIZE(ErrorDescription::MisalignedSize, ErrorModule::OS,
-                                         ErrorSummary::InvalidArgument,
-                                         ErrorLevel::Usage); // 0xE0E01BF2
-constexpr ResultCode ERR_OUT_OF_MEMORY(ErrorDescription::OutOfMemory, ErrorModule::Kernel,
-                                       ErrorSummary::OutOfResource,
-                                       ErrorLevel::Permanent); // 0xD86007F3
-/// Returned when out of heap or linear heap memory when allocating
-constexpr ResultCode ERR_OUT_OF_HEAP_MEMORY(ErrorDescription::OutOfMemory, ErrorModule::OS,
-                                            ErrorSummary::OutOfResource,
-                                            ErrorLevel::Status); // 0xC860180A
-constexpr ResultCode ERR_NOT_IMPLEMENTED(ErrorDescription::NotImplemented, ErrorModule::OS,
-                                         ErrorSummary::InvalidArgument,
-                                         ErrorLevel::Usage); // 0xE0E01BF4
-constexpr ResultCode ERR_INVALID_ADDRESS(ErrorDescription::InvalidAddress, ErrorModule::OS,
-                                         ErrorSummary::InvalidArgument,
-                                         ErrorLevel::Usage); // 0xE0E01BF5
-constexpr ResultCode ERR_INVALID_ADDRESS_STATE(ErrorDescription::InvalidAddress, ErrorModule::OS,
-                                               ErrorSummary::InvalidState,
-                                               ErrorLevel::Usage); // 0xE0A01BF5
-constexpr ResultCode ERR_INVALID_POINTER(ErrorDescription::InvalidPointer, ErrorModule::Kernel,
-                                         ErrorSummary::InvalidArgument,
-                                         ErrorLevel::Permanent); // 0xD8E007F6
-constexpr ResultCode ERR_INVALID_HANDLE(ErrorDescription::InvalidHandle, ErrorModule::Kernel,
-                                        ErrorSummary::InvalidArgument,
-                                        ErrorLevel::Permanent); // 0xD8E007F7
-/// Alternate code returned instead of ERR_INVALID_HANDLE in some code paths.
-constexpr ResultCode ERR_INVALID_HANDLE_OS(ErrorDescription::InvalidHandle, ErrorModule::OS,
-                                           ErrorSummary::WrongArgument,
-                                           ErrorLevel::Permanent); // 0xD9001BF7
-constexpr ResultCode ERR_NOT_FOUND(ErrorDescription::NotFound, ErrorModule::Kernel,
-                                   ErrorSummary::NotFound, ErrorLevel::Permanent); // 0xD88007FA
-constexpr ResultCode ERR_OUT_OF_RANGE(ErrorDescription::OutOfRange, ErrorModule::OS,
-                                      ErrorSummary::InvalidArgument,
-                                      ErrorLevel::Usage); // 0xE0E01BFD
-constexpr ResultCode ERR_OUT_OF_RANGE_KERNEL(ErrorDescription::OutOfRange, ErrorModule::Kernel,
-                                             ErrorSummary::InvalidArgument,
-                                             ErrorLevel::Permanent); // 0xD8E007FD
-constexpr ResultCode RESULT_TIMEOUT(ErrorDescription::Timeout, ErrorModule::OS,
-                                    ErrorSummary::StatusChanged, ErrorLevel::Info);
-/// Returned when Accept() is called on a port with no sessions to be accepted.
-constexpr ResultCode ERR_NO_PENDING_SESSIONS(ErrCodes::NoPendingSessions, ErrorModule::OS,
+constexpr Result ResultOutOfHandles(ErrCodes::OutOfHandles, ErrorModule::Kernel,
+                                    ErrorSummary::OutOfResource,
+                                    ErrorLevel::Permanent); // 0xD8600413
+constexpr Result ResultSessionClosed(ErrCodes::SessionClosedByRemote, ErrorModule::OS,
+                                     ErrorSummary::Canceled,
+                                     ErrorLevel::Status); // 0xC920181A
+constexpr Result ResultPortNameTooLong(ErrCodes::PortNameTooLong, ErrorModule::OS,
+                                       ErrorSummary::InvalidArgument,
+                                       ErrorLevel::Usage); // 0xE0E0181E
+constexpr Result ResultWrongPermission(ErrCodes::WrongPermission, ErrorModule::OS,
+                                       ErrorSummary::WrongArgument, ErrorLevel::Permanent);
+constexpr Result ResultInvalidBufferDescriptor(ErrCodes::InvalidBufferDescriptor, ErrorModule::OS,
+                                               ErrorSummary::WrongArgument, ErrorLevel::Permanent);
+constexpr Result ResultMaxConnectionsReached(ErrCodes::MaxConnectionsReached, ErrorModule::OS,
                                              ErrorSummary::WouldBlock,
-                                             ErrorLevel::Permanent); // 0xD8401823
+                                             ErrorLevel::Temporary); // 0xD0401834
+
+constexpr Result ResultNotAuthorized(ErrorDescription::NotAuthorized, ErrorModule::OS,
+                                     ErrorSummary::WrongArgument,
+                                     ErrorLevel::Permanent); // 0xD9001BEA
+constexpr Result ResultInvalidEnumValue(ErrorDescription::InvalidEnumValue, ErrorModule::Kernel,
+                                        ErrorSummary::InvalidArgument,
+                                        ErrorLevel::Permanent); // 0xD8E007ED
+constexpr Result ResultInvalidEnumValueFnd(ErrorDescription::InvalidEnumValue, ErrorModule::FND,
+                                           ErrorSummary::InvalidArgument,
+                                           ErrorLevel::Permanent); // 0xD8E093ED
+constexpr Result ResultInvalidCombination(ErrorDescription::InvalidCombination, ErrorModule::OS,
+                                          ErrorSummary::InvalidArgument,
+                                          ErrorLevel::Usage); // 0xE0E01BEE
+constexpr Result ResultInvalidCombinationKernel(ErrorDescription::InvalidCombination,
+                                                ErrorModule::Kernel, ErrorSummary::WrongArgument,
+                                                ErrorLevel::Permanent); // 0xD90007EE
+constexpr Result ResultMisalignedAddress(ErrorDescription::MisalignedAddress, ErrorModule::OS,
+                                         ErrorSummary::InvalidArgument,
+                                         ErrorLevel::Usage); // 0xE0E01BF1
+constexpr Result ResultMisalignedSize(ErrorDescription::MisalignedSize, ErrorModule::OS,
+                                      ErrorSummary::InvalidArgument,
+                                      ErrorLevel::Usage); // 0xE0E01BF2
+constexpr Result ResultOutOfMemory(ErrorDescription::OutOfMemory, ErrorModule::Kernel,
+                                   ErrorSummary::OutOfResource,
+                                   ErrorLevel::Permanent); // 0xD86007F3
+/// Returned when out of heap or linear heap memory when allocating
+constexpr Result ResultOutOfHeapMemory(ErrorDescription::OutOfMemory, ErrorModule::OS,
+                                       ErrorSummary::OutOfResource,
+                                       ErrorLevel::Status); // 0xC860180A
+constexpr Result ResultNotImplemented(ErrorDescription::NotImplemented, ErrorModule::OS,
+                                      ErrorSummary::InvalidArgument,
+                                      ErrorLevel::Usage); // 0xE0E01BF4
+constexpr Result ResultInvalidAddress(ErrorDescription::InvalidAddress, ErrorModule::OS,
+                                      ErrorSummary::InvalidArgument,
+                                      ErrorLevel::Usage); // 0xE0E01BF5
+constexpr Result ResultInvalidAddressState(ErrorDescription::InvalidAddress, ErrorModule::OS,
+                                           ErrorSummary::InvalidState,
+                                           ErrorLevel::Usage); // 0xE0A01BF5
+constexpr Result ResultInvalidPointer(ErrorDescription::InvalidPointer, ErrorModule::Kernel,
+                                      ErrorSummary::InvalidArgument,
+                                      ErrorLevel::Permanent); // 0xD8E007F6
+constexpr Result ResultInvalidHandle(ErrorDescription::InvalidHandle, ErrorModule::Kernel,
+                                     ErrorSummary::InvalidArgument,
+                                     ErrorLevel::Permanent); // 0xD8E007F7
+/// Alternate code returned instead of ResultInvalidHandle in some code paths.
+constexpr Result ResultInvalidHandleOs(ErrorDescription::InvalidHandle, ErrorModule::OS,
+                                       ErrorSummary::WrongArgument,
+                                       ErrorLevel::Permanent); // 0xD9001BF7
+constexpr Result ResultNotFound(ErrorDescription::NotFound, ErrorModule::Kernel,
+                                ErrorSummary::NotFound, ErrorLevel::Permanent); // 0xD88007FA
+constexpr Result ResultOutOfRange(ErrorDescription::OutOfRange, ErrorModule::OS,
+                                  ErrorSummary::InvalidArgument,
+                                  ErrorLevel::Usage); // 0xE0E01BFD
+constexpr Result ResultOutOfRangeKernel(ErrorDescription::OutOfRange, ErrorModule::Kernel,
+                                        ErrorSummary::InvalidArgument,
+                                        ErrorLevel::Permanent); // 0xD8E007FD
+constexpr Result ResultTimeout(ErrorDescription::Timeout, ErrorModule::OS,
+                               ErrorSummary::StatusChanged, ErrorLevel::Info);
+/// Returned when Accept() is called on a port with no sessions to be accepted.
+constexpr Result ResultNoPendingSessions(ErrCodes::NoPendingSessions, ErrorModule::OS,
+                                         ErrorSummary::WouldBlock,
+                                         ErrorLevel::Permanent); // 0xD8401823
 
 } // namespace Kernel

src/core/hle/kernel/event.cpp

@@ -36,8 +36,9 @@ bool Event::ShouldWait(const Thread* thread) const {
 void Event::Acquire(Thread* thread) {
     ASSERT_MSG(!ShouldWait(thread), "object unavailable!");
 
-    if (reset_type == ResetType::OneShot)
+    if (reset_type == ResetType::OneShot) {
         signaled = false;
+    }
 }
 
 void Event::Signal() {
@@ -52,8 +53,9 @@ void Event::Clear() {
 void Event::WakeupAllWaitingThreads() {
     WaitObject::WakeupAllWaitingThreads();
 
-    if (reset_type == ResetType::Pulse)
+    if (reset_type == ResetType::Pulse) {
         signaled = false;
+    }
 }
 
 } // namespace Kernel

src/core/hle/kernel/handle_table.cpp

@@ -28,56 +28,48 @@ HandleTable::HandleTable(KernelSystem& kernel) : kernel(kernel) {
 
 HandleTable::~HandleTable() = default;
 
-ResultVal<Handle> HandleTable::Create(std::shared_ptr<Object> obj) {
+Result HandleTable::Create(Handle* out_handle, std::shared_ptr<Object> obj) {
     DEBUG_ASSERT(obj != nullptr);
 
     u16 slot = next_free_slot;
-    if (slot >= generations.size()) {
-        LOG_ERROR(Kernel, "Unable to allocate Handle, too many slots in use.");
-        return ERR_OUT_OF_HANDLES;
-    }
+    R_UNLESS(slot < generations.size(), ResultOutOfHandles);
     next_free_slot = generations[slot];
 
     u16 generation = next_generation++;
 
     // Overflow count so it fits in the 15 bits dedicated to the generation in the handle.
     // CTR-OS doesn't use generation 0, so skip straight to 1.
-    if (next_generation >= (1 << 15))
+    if (next_generation >= (1 << 15)) {
         next_generation = 1;
+    }
 
     generations[slot] = generation;
     objects[slot] = std::move(obj);
 
-    Handle handle = generation | (slot << 15);
-    return handle;
+    *out_handle = generation | (slot << 15);
+    return ResultSuccess;
 }
 
-ResultVal<Handle> HandleTable::Duplicate(Handle handle) {
+Result HandleTable::Duplicate(Handle* out_handle, Handle handle) {
     std::shared_ptr<Object> object = GetGeneric(handle);
-    if (object == nullptr) {
-        LOG_ERROR(Kernel, "Tried to duplicate invalid handle: {:08X}", handle);
-        return ERR_INVALID_HANDLE;
-    }
-    return Create(std::move(object));
+    R_UNLESS(object, ResultInvalidHandle);
+    return Create(out_handle, std::move(object));
 }
 
-ResultCode HandleTable::Close(Handle handle) {
-    if (!IsValid(handle))
-        return ERR_INVALID_HANDLE;
-
-    u16 slot = GetSlot(handle);
+Result HandleTable::Close(Handle handle) {
+    R_UNLESS(IsValid(handle), ResultInvalidHandle);
 
+    const u16 slot = GetSlot(handle);
     objects[slot] = nullptr;
 
     generations[slot] = next_free_slot;
     next_free_slot = slot;
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 bool HandleTable::IsValid(Handle handle) const {
-    std::size_t slot = GetSlot(handle);
-    u16 generation = GetGeneration(handle);
-
+    const u16 slot = GetSlot(handle);
+    const u16 generation = GetGeneration(handle);
     return slot < MAX_COUNT && objects[slot] != nullptr && generations[slot] == generation;
 }
 

src/core/hle/kernel/handle_table.h

@@ -51,24 +51,24 @@ public:
     /**
      * Allocates a handle for the given object.
      * @return The created Handle or one of the following errors:
-     *           - `ERR_OUT_OF_HANDLES`: the maximum number of handles has been exceeded.
+     *           - `ResultOutOfHandles`: the maximum number of handles has been exceeded.
      */
-    ResultVal<Handle> Create(std::shared_ptr<Object> obj);
+    Result Create(Handle* out_handle, std::shared_ptr<Object> obj);
 
     /**
      * Returns a new handle that points to the same object as the passed in handle.
      * @return The duplicated Handle or one of the following errors:
-     *           - `ERR_INVALID_HANDLE`: an invalid handle was passed in.
+     *           - `ResultInvalidHandle`: an invalid handle was passed in.
      *           - Any errors returned by `Create()`.
      */
-    ResultVal<Handle> Duplicate(Handle handle);
+    Result Duplicate(Handle* out_handle, Handle handle);
 
     /**
      * Closes a handle, removing it from the table and decreasing the object's ref-count.
-     * @return `RESULT_SUCCESS` or one of the following errors:
-     *           - `ERR_INVALID_HANDLE`: an invalid handle was passed in.
+     * @return `ResultSuccess` or one of the following errors:
+     *           - `ResultInvalidHandle`: an invalid handle was passed in.
      */
-    ResultCode Close(Handle handle);
+    Result Close(Handle handle);
 
     /// Checks if a handle is valid and points to an existing object.
     bool IsValid(Handle handle) const;

src/core/hle/kernel/hle_ipc.cpp

@@ -126,8 +126,8 @@ void HLERequestContext::AddStaticBuffer(u8 buffer_id, std::vector<u8> data) {
     static_buffers[buffer_id] = std::move(data);
 }
 
-ResultCode HLERequestContext::PopulateFromIncomingCommandBuffer(
-    const u32_le* src_cmdbuf, std::shared_ptr<Process> src_process_) {
+Result HLERequestContext::PopulateFromIncomingCommandBuffer(const u32_le* src_cmdbuf,
+                                                            std::shared_ptr<Process> src_process_) {
     auto& src_process = *src_process_;
     IPC::Header header{src_cmdbuf[0]};
 
@@ -203,11 +203,11 @@ ResultCode HLERequestContext::PopulateFromIncomingCommandBuffer(
                                                std::move(translated_cmdbuf));
     }
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
-ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf,
-                                                           Process& dst_process) const {
+Result HLERequestContext::WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf,
+                                                       Process& dst_process) const {
     IPC::Header header{cmd_buf[0]};
 
     std::size_t untranslated_size = 1u + header.normal_params_size;
@@ -239,7 +239,7 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf,
                 Handle handle = 0;
                 if (object != nullptr) {
                     // TODO(yuriks): Figure out the proper error handling for if this fails
-                    handle = dst_process.handle_table.Create(object).Unwrap();
+                    R_ASSERT(dst_process.handle_table.Create(std::addressof(handle), object));
                 }
                 dst_cmdbuf[i++] = handle;
             }
@@ -281,7 +281,7 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf,
                                              std::move(translated_cmdbuf));
     }
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 MappedBuffer& HLERequestContext::GetMappedBuffer(u32 id_from_cmdbuf) {

src/core/hle/kernel/hle_ipc.h

@@ -363,10 +363,10 @@ public:
     MappedBuffer& GetMappedBuffer(u32 id_from_cmdbuf);
 
     /// Populates this context with data from the requesting process/thread.
-    ResultCode PopulateFromIncomingCommandBuffer(const u32_le* src_cmdbuf,
-                                                 std::shared_ptr<Process> src_process);
+    Result PopulateFromIncomingCommandBuffer(const u32_le* src_cmdbuf,
+                                             std::shared_ptr<Process> src_process);
     /// Writes data from this context back to the requesting process/thread.
-    ResultCode WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf, Process& dst_process) const;
+    Result WriteToOutgoingCommandBuffer(u32_le* dst_cmdbuf, Process& dst_process) const;
 
     /// Reports an unimplemented function.
     void ReportUnimplemented() const;

src/core/hle/kernel/ipc.cpp

@@ -18,12 +18,11 @@
 
 namespace Kernel {
 
-ResultCode TranslateCommandBuffer(Kernel::KernelSystem& kernel, Memory::MemorySystem& memory,
-                                  std::shared_ptr<Thread> src_thread,
-                                  std::shared_ptr<Thread> dst_thread, VAddr src_address,
-                                  VAddr dst_address,
-                                  std::vector<MappedBufferContext>& mapped_buffer_context,
-                                  bool reply) {
+Result TranslateCommandBuffer(Kernel::KernelSystem& kernel, Memory::MemorySystem& memory,
+                              std::shared_ptr<Thread> src_thread,
+                              std::shared_ptr<Thread> dst_thread, VAddr src_address,
+                              VAddr dst_address,
+                              std::vector<MappedBufferContext>& mapped_buffer_context, bool reply) {
     auto src_process = src_thread->owner_process.lock();
     auto dst_process = dst_thread->owner_process.lock();
     ASSERT(src_process && dst_process);
@@ -60,8 +59,8 @@ ResultCode TranslateCommandBuffer(Kernel::KernelSystem& kernel, Memory::MemorySy
             // Note: The real kernel does not check that the number of handles fits into the command
             // buffer before writing them, only after finishing.
             if (i + num_handles > command_size) {
-                return ResultCode(ErrCodes::CommandTooLarge, ErrorModule::OS,
-                                  ErrorSummary::InvalidState, ErrorLevel::Status);
+                return Result(ErrCodes::CommandTooLarge, ErrorModule::OS,
+                              ErrorSummary::InvalidState, ErrorLevel::Status);
             }
 
             for (u32 j = 0; j < num_handles; ++j) {
@@ -88,8 +87,8 @@ ResultCode TranslateCommandBuffer(Kernel::KernelSystem& kernel, Memory::MemorySy
                     continue;
                 }
 
-                auto result = dst_process->handle_table.Create(std::move(object));
-                cmd_buf[i++] = result.ValueOr(0);
+                R_ASSERT(dst_process->handle_table.Create(std::addressof(cmd_buf[i++]),
+                                                          std::move(object)));
             }
             break;
         }
@@ -180,10 +179,10 @@ ResultCode TranslateCommandBuffer(Kernel::KernelSystem& kernel, Memory::MemorySy
                        next_vma.meminfo_state == MemoryState::Reserved);
 
                 // Unmap the buffer and guard pages from the source process
-                ResultCode result =
+                Result result =
                     src_process->vm_manager.UnmapRange(page_start - Memory::CITRA_PAGE_SIZE,
                                                        (num_pages + 2) * Memory::CITRA_PAGE_SIZE);
-                ASSERT(result == RESULT_SUCCESS);
+                ASSERT(result == ResultSuccess);
 
                 mapped_buffer_context.erase(found);
 
@@ -216,11 +215,11 @@ ResultCode TranslateCommandBuffer(Kernel::KernelSystem& kernel, Memory::MemorySy
             ASSERT(dst_process->vm_manager.ChangeMemoryState(
                        low_guard_address, Memory::CITRA_PAGE_SIZE, Kernel::MemoryState::Shared,
                        Kernel::VMAPermission::ReadWrite, Kernel::MemoryState::Reserved,
-                       Kernel::VMAPermission::None) == RESULT_SUCCESS);
+                       Kernel::VMAPermission::None) == ResultSuccess);
             ASSERT(dst_process->vm_manager.ChangeMemoryState(
                        high_guard_address, Memory::CITRA_PAGE_SIZE, Kernel::MemoryState::Shared,
                        Kernel::VMAPermission::ReadWrite, Kernel::MemoryState::Reserved,
-                       Kernel::VMAPermission::None) == RESULT_SUCCESS);
+                       Kernel::VMAPermission::None) == ResultSuccess);
 
             // Get proper mapped buffer address and store it in the cmd buffer.
             target_address += Memory::CITRA_PAGE_SIZE;
@@ -249,6 +248,6 @@ ResultCode TranslateCommandBuffer(Kernel::KernelSystem& kernel, Memory::MemorySy
 
     memory.WriteBlock(*dst_process, dst_address, cmd_buf.data(), command_size * sizeof(u32));
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 } // namespace Kernel

src/core/hle/kernel/ipc.h

@@ -40,10 +40,9 @@ private:
 };
 
 /// Performs IPC command buffer translation from one process to another.
-ResultCode TranslateCommandBuffer(KernelSystem& system, Memory::MemorySystem& memory,
-                                  std::shared_ptr<Thread> src_thread,
-                                  std::shared_ptr<Thread> dst_thread, VAddr src_address,
-                                  VAddr dst_address,
-                                  std::vector<MappedBufferContext>& mapped_buffer_context,
-                                  bool reply);
+Result TranslateCommandBuffer(KernelSystem& system, Memory::MemorySystem& memory,
+                              std::shared_ptr<Thread> src_thread,
+                              std::shared_ptr<Thread> dst_thread, VAddr src_address,
+                              VAddr dst_address,
+                              std::vector<MappedBufferContext>& mapped_buffer_context, bool reply);
 } // namespace Kernel

src/core/hle/kernel/mutex.cpp

@@ -66,7 +66,7 @@ void Mutex::Acquire(Thread* thread) {
     lock_count++;
 }
 
-ResultCode Mutex::Release(Thread* thread) {
+Result Mutex::Release(Thread* thread) {
     // We can only release the mutex if it's held by the calling thread.
     if (thread != holding_thread.get()) {
         if (holding_thread) {
@@ -75,15 +75,15 @@ ResultCode Mutex::Release(Thread* thread) {
                 "Tried to release a mutex (owned by thread id {}) from a different thread id {}",
                 holding_thread->thread_id, thread->thread_id);
         }
-        return ResultCode(ErrCodes::WrongLockingThread, ErrorModule::Kernel,
-                          ErrorSummary::InvalidArgument, ErrorLevel::Permanent);
+        return Result(ErrCodes::WrongLockingThread, ErrorModule::Kernel,
+                      ErrorSummary::InvalidArgument, ErrorLevel::Permanent);
     }
 
     // Note: It should not be possible for the situation where the mutex has a holding thread with a
     // zero lock count to occur. The real kernel still checks for this, so we do too.
     if (lock_count <= 0)
-        return ResultCode(ErrorDescription::InvalidResultValue, ErrorModule::Kernel,
-                          ErrorSummary::InvalidState, ErrorLevel::Permanent);
+        return Result(ErrorDescription::InvalidResultValue, ErrorModule::Kernel,
+                      ErrorSummary::InvalidState, ErrorLevel::Permanent);
 
     lock_count--;
 
@@ -96,7 +96,7 @@ ResultCode Mutex::Release(Thread* thread) {
         kernel.PrepareReschedule();
     }
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 void Mutex::AddWaitingThread(std::shared_ptr<Thread> thread) {

src/core/hle/kernel/mutex.h

@@ -60,7 +60,7 @@ public:
      * @param thread Thread that wants to release the mutex.
      * @returns The result code of the operation.
      */
-    ResultCode Release(Thread* thread);
+    Result Release(Thread* thread);
 
 private:
     KernelSystem& kernel;

src/core/hle/kernel/process.cpp

@@ -192,9 +192,12 @@ void Process::Run(s32 main_thread_priority, u32 stack_size) {
         return;
     }
 
+    VAddr out_addr{};
+
     auto MapSegment = [&](CodeSet::Segment& segment, VMAPermission permissions,
                           MemoryState memory_state) {
-        HeapAllocate(segment.addr, segment.size, permissions, memory_state, true);
+        HeapAllocate(std::addressof(out_addr), segment.addr, segment.size, permissions,
+                     memory_state, true);
         kernel.memory.WriteBlock(*this, segment.addr, codeset->memory.data() + segment.offset,
                                  segment.size);
     };
@@ -205,8 +208,8 @@ void Process::Run(s32 main_thread_priority, u32 stack_size) {
     MapSegment(codeset->DataSegment(), VMAPermission::ReadWrite, MemoryState::Private);
 
     // Allocate and map stack
-    HeapAllocate(Memory::HEAP_VADDR_END - stack_size, stack_size, VMAPermission::ReadWrite,
-                 MemoryState::Locked, true);
+    HeapAllocate(std::addressof(out_addr), Memory::HEAP_VADDR_END - stack_size, stack_size,
+                 VMAPermission::ReadWrite, MemoryState::Locked, true);
 
     // Map special address mappings
     kernel.MapSharedPages(vm_manager);
@@ -246,14 +249,14 @@ VAddr Process::GetLinearHeapLimit() const {
     return GetLinearHeapBase() + memory_region->size;
 }
 
-ResultVal<VAddr> Process::HeapAllocate(VAddr target, u32 size, VMAPermission perms,
-                                       MemoryState memory_state, bool skip_range_check) {
+Result Process::HeapAllocate(VAddr* out_addr, VAddr target, u32 size, VMAPermission perms,
+                             MemoryState memory_state, bool skip_range_check) {
     LOG_DEBUG(Kernel, "Allocate heap target={:08X}, size={:08X}", target, size);
     if (target < Memory::HEAP_VADDR || target + size > Memory::HEAP_VADDR_END ||
         target + size < target) {
         if (!skip_range_check) {
             LOG_ERROR(Kernel, "Invalid heap address");
-            return ERR_INVALID_ADDRESS;
+            return ResultInvalidAddress;
         }
     }
     {
@@ -261,13 +264,13 @@ ResultVal<VAddr> Process::HeapAllocate(VAddr target, u32 size, VMAPermission per
         if (vma->second.type != VMAType::Free ||
             vma->second.base + vma->second.size < target + size) {
             LOG_ERROR(Kernel, "Trying to allocate already allocated memory");
-            return ERR_INVALID_ADDRESS_STATE;
+            return ResultInvalidAddressState;
         }
     }
     auto allocated_fcram = memory_region->HeapAllocate(size);
     if (allocated_fcram.empty()) {
         LOG_ERROR(Kernel, "Not enough space");
-        return ERR_OUT_OF_HEAP_MEMORY;
+        return ResultOutOfHeapMemory;
     }
 
     // Maps heap block by block
@@ -290,20 +293,19 @@ ResultVal<VAddr> Process::HeapAllocate(VAddr target, u32 size, VMAPermission per
     memory_used += size;
     resource_limit->Reserve(ResourceLimitType::Commit, size);
 
-    return target;
+    *out_addr = target;
+    return ResultSuccess;
 }
 
-ResultCode Process::HeapFree(VAddr target, u32 size) {
+Result Process::HeapFree(VAddr target, u32 size) {
     LOG_DEBUG(Kernel, "Free heap target={:08X}, size={:08X}", target, size);
     if (target < Memory::HEAP_VADDR || target + size > Memory::HEAP_VADDR_END ||
         target + size < target) {
         LOG_ERROR(Kernel, "Invalid heap address");
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
-    if (size == 0) {
-        return RESULT_SUCCESS;
-    }
+    R_SUCCEED_IF(size == 0);
 
     // Free heaps block by block
     CASCADE_RESULT(auto backing_blocks, vm_manager.GetBackingBlocksForRange(target, size));
@@ -313,23 +315,23 @@ ResultCode Process::HeapFree(VAddr target, u32 size) {
         holding_memory -= MemoryRegionInfo::Interval(backing_offset, backing_offset + block_size);
     }
 
-    ResultCode result = vm_manager.UnmapRange(target, size);
+    Result result = vm_manager.UnmapRange(target, size);
     ASSERT(result.IsSuccess());
 
     memory_used -= size;
     resource_limit->Release(ResourceLimitType::Commit, size);
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
-ResultVal<VAddr> Process::LinearAllocate(VAddr target, u32 size, VMAPermission perms) {
+Result Process::LinearAllocate(VAddr* out_addr, VAddr target, u32 size, VMAPermission perms) {
     LOG_DEBUG(Kernel, "Allocate linear heap target={:08X}, size={:08X}", target, size);
     u32 physical_offset;
     if (target == 0) {
         auto offset = memory_region->LinearAllocate(size);
         if (!offset) {
             LOG_ERROR(Kernel, "Not enough space");
-            return ERR_OUT_OF_HEAP_MEMORY;
+            return ResultOutOfHeapMemory;
         }
         physical_offset = *offset;
         target = physical_offset + GetLinearHeapAreaAddress();
@@ -337,7 +339,7 @@ ResultVal<VAddr> Process::LinearAllocate(VAddr target, u32 size, VMAPermission p
         if (target < GetLinearHeapBase() || target + size > GetLinearHeapLimit() ||
             target + size < target) {
             LOG_ERROR(Kernel, "Invalid linear heap address");
-            return ERR_INVALID_ADDRESS;
+            return ResultInvalidAddress;
         }
 
         // Kernel would crash/return error when target doesn't meet some requirement.
@@ -350,7 +352,7 @@ ResultVal<VAddr> Process::LinearAllocate(VAddr target, u32 size, VMAPermission p
         physical_offset = target - GetLinearHeapAreaAddress(); // relative to FCRAM
         if (!memory_region->LinearAllocate(physical_offset, size)) {
             LOG_ERROR(Kernel, "Trying to allocate already allocated memory");
-            return ERR_INVALID_ADDRESS_STATE;
+            return ResultInvalidAddressState;
         }
     }
 
@@ -366,26 +368,20 @@ ResultVal<VAddr> Process::LinearAllocate(VAddr target, u32 size, VMAPermission p
     resource_limit->Reserve(ResourceLimitType::Commit, size);
 
     LOG_DEBUG(Kernel, "Allocated at target={:08X}", target);
-    return target;
+    *out_addr = target;
+    return ResultSuccess;
 }
 
-ResultCode Process::LinearFree(VAddr target, u32 size) {
+Result Process::LinearFree(VAddr target, u32 size) {
     LOG_DEBUG(Kernel, "Free linear heap target={:08X}, size={:08X}", target, size);
     if (target < GetLinearHeapBase() || target + size > GetLinearHeapLimit() ||
         target + size < target) {
         LOG_ERROR(Kernel, "Invalid linear heap address");
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
-    if (size == 0) {
-        return RESULT_SUCCESS;
-    }
-
-    ResultCode result = vm_manager.UnmapRange(target, size);
-    if (result.IsError()) {
-        LOG_ERROR(Kernel, "Trying to free already freed memory");
-        return result;
-    }
+    R_SUCCEED_IF(size == 0);
+    R_TRY(vm_manager.UnmapRange(target, size));
 
     u32 physical_offset = target - GetLinearHeapAreaAddress(); // relative to FCRAM
     memory_region->Free(physical_offset, size);
@@ -394,7 +390,7 @@ ResultCode Process::LinearFree(VAddr target, u32 size) {
     memory_used -= size;
     resource_limit->Release(ResourceLimitType::Commit, size);
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 ResultVal<VAddr> Process::AllocateThreadLocalStorage() {
@@ -435,7 +431,7 @@ ResultVal<VAddr> Process::AllocateThreadLocalStorage() {
         if (!offset) {
             LOG_ERROR(Kernel_SVC,
                       "Not enough space in BASE linear region to allocate a new TLS page");
-            return ERR_OUT_OF_MEMORY;
+            return ResultOutOfMemory;
         }
 
         holding_tls_memory +=
@@ -467,14 +463,13 @@ ResultVal<VAddr> Process::AllocateThreadLocalStorage() {
     return tls_address;
 }
 
-ResultCode Process::Map(VAddr target, VAddr source, u32 size, VMAPermission perms,
-                        bool privileged) {
+Result Process::Map(VAddr target, VAddr source, u32 size, VMAPermission perms, bool privileged) {
     LOG_DEBUG(Kernel, "Map memory target={:08X}, source={:08X}, size={:08X}, perms={:08X}", target,
               source, size, perms);
     if (!privileged && (source < Memory::HEAP_VADDR || source + size > Memory::HEAP_VADDR_END ||
                         source + size < source)) {
         LOG_ERROR(Kernel, "Invalid source address");
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     // TODO(wwylele): check target address range. Is it also restricted to heap region?
@@ -489,17 +484,17 @@ ResultCode Process::Map(VAddr target, VAddr source, u32 size, VMAPermission perm
                                                     VMAPermission::ReadWrite,
                                                     MemoryState::AliasCode, perms);
             } else {
-                return ERR_INVALID_ADDRESS;
+                return ResultInvalidAddress;
             }
         } else {
-            return ERR_INVALID_ADDRESS_STATE;
+            return ResultInvalidAddressState;
         }
     }
 
     auto vma = vm_manager.FindVMA(target);
     if (vma->second.type != VMAType::Free || vma->second.base + vma->second.size < target + size) {
         LOG_ERROR(Kernel, "Trying to map to already allocated memory");
-        return ERR_INVALID_ADDRESS_STATE;
+        return ResultInvalidAddressState;
     }
 
     MemoryState source_state = privileged ? MemoryState::Locked : MemoryState::Aliased;
@@ -507,8 +502,8 @@ ResultCode Process::Map(VAddr target, VAddr source, u32 size, VMAPermission perm
     VMAPermission source_perm = privileged ? VMAPermission::None : VMAPermission::ReadWrite;
 
     // Mark source region as Aliased
-    CASCADE_CODE(vm_manager.ChangeMemoryState(source, size, MemoryState::Private,
-                                              VMAPermission::ReadWrite, source_state, source_perm));
+    R_TRY(vm_manager.ChangeMemoryState(source, size, MemoryState::Private, VMAPermission::ReadWrite,
+                                       source_state, source_perm));
 
     CASCADE_RESULT(auto backing_blocks, vm_manager.GetBackingBlocksForRange(source, size));
     VAddr interval_target = target;
@@ -520,16 +515,15 @@ ResultCode Process::Map(VAddr target, VAddr source, u32 size, VMAPermission perm
         interval_target += block_size;
     }
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
-ResultCode Process::Unmap(VAddr target, VAddr source, u32 size, VMAPermission perms,
-                          bool privileged) {
+Result Process::Unmap(VAddr target, VAddr source, u32 size, VMAPermission perms, bool privileged) {
     LOG_DEBUG(Kernel, "Unmap memory target={:08X}, source={:08X}, size={:08X}, perms={:08X}",
               target, source, size, perms);
     if (!privileged && (source < Memory::HEAP_VADDR || source + size > Memory::HEAP_VADDR_END ||
                         source + size < source)) {
         LOG_ERROR(Kernel, "Invalid source address");
-        return ERR_INVALID_ADDRESS;
+        return ResultInvalidAddress;
     }
 
     // TODO(wwylele): check target address range. Is it also restricted to heap region?
@@ -543,10 +537,10 @@ ResultCode Process::Unmap(VAddr target, VAddr source, u32 size, VMAPermission pe
                                                     VMAPermission::None, MemoryState::Private,
                                                     perms);
             } else {
-                return ERR_INVALID_ADDRESS;
+                return ResultInvalidAddress;
             }
         } else {
-            return ERR_INVALID_ADDRESS_STATE;
+            return ResultInvalidAddressState;
         }
     }
 
@@ -555,13 +549,13 @@ ResultCode Process::Unmap(VAddr target, VAddr source, u32 size, VMAPermission pe
 
     MemoryState source_state = privileged ? MemoryState::Locked : MemoryState::Aliased;
 
-    CASCADE_CODE(vm_manager.UnmapRange(target, size));
+    R_TRY(vm_manager.UnmapRange(target, size));
 
     // Change back source region state. Note that the permission is reprotected according to param
-    CASCADE_CODE(vm_manager.ChangeMemoryState(source, size, source_state, VMAPermission::None,
-                                              MemoryState::Private, perms));
+    R_TRY(vm_manager.ChangeMemoryState(source, size, source_state, VMAPermission::None,
+                                       MemoryState::Private, perms));
 
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 void Process::FreeAllMemory() {

src/core/hle/kernel/process.h

@@ -231,20 +231,19 @@ public:
     VAddr GetLinearHeapBase() const;
     VAddr GetLinearHeapLimit() const;
 
-    ResultVal<VAddr> HeapAllocate(VAddr target, u32 size, VMAPermission perms,
-                                  MemoryState memory_state = MemoryState::Private,
-                                  bool skip_range_check = false);
-    ResultCode HeapFree(VAddr target, u32 size);
+    Result HeapAllocate(VAddr* out_addr, VAddr target, u32 size, VMAPermission perms,
+                        MemoryState memory_state = MemoryState::Private,
+                        bool skip_range_check = false);
+    Result HeapFree(VAddr target, u32 size);
 
-    ResultVal<VAddr> LinearAllocate(VAddr target, u32 size, VMAPermission perms);
-    ResultCode LinearFree(VAddr target, u32 size);
+    Result LinearAllocate(VAddr* out_addr, VAddr target, u32 size, VMAPermission perms);
+    Result LinearFree(VAddr target, u32 size);
 
     ResultVal<VAddr> AllocateThreadLocalStorage();
 
-    ResultCode Map(VAddr target, VAddr source, u32 size, VMAPermission perms,
-                   bool privileged = false);
-    ResultCode Unmap(VAddr target, VAddr source, u32 size, VMAPermission perms,
-                     bool privileged = false);
+    Result Map(VAddr target, VAddr source, u32 size, VMAPermission perms, bool privileged = false);
+    Result Unmap(VAddr target, VAddr source, u32 size, VMAPermission perms,
+                 bool privileged = false);
 
 private:
     void FreeAllMemory();

src/core/hle/kernel/semaphore.cpp

@@ -26,9 +26,7 @@ ResultVal<std::shared_ptr<Semaphore>> KernelSystem::CreateSemaphore(s32 initial_
                                                                     s32 max_count,
                                                                     std::string name) {
 
-    if (initial_count > max_count) {
-        return ERR_INVALID_COMBINATION_KERNEL;
-    }
+    R_UNLESS(initial_count <= max_count, ResultInvalidCombinationKernel);
 
     // When the semaphore is created, some slots are reserved for other threads,
     // and the rest is reserved for the caller thread
@@ -44,21 +42,20 @@ bool Semaphore::ShouldWait(const Thread* thread) const {
 }
 
 void Semaphore::Acquire(Thread* thread) {
-    if (available_count <= 0)
+    if (available_count <= 0) {
         return;
+    }
     --available_count;
 }
 
-ResultVal<s32> Semaphore::Release(s32 release_count) {
-    if (max_count - available_count < release_count)
-        return ERR_OUT_OF_RANGE_KERNEL;
+Result Semaphore::Release(s32* out_count, s32 release_count) {
+    R_UNLESS(max_count >= release_count + available_count, ResultOutOfRangeKernel);
 
-    s32 previous_count = available_count;
+    *out_count = available_count;
     available_count += release_count;
-
     WakeupAllWaitingThreads();
 
-    return previous_count;
+    return ResultSuccess;
 }
 
 } // namespace Kernel

src/core/hle/kernel/semaphore.h

@@ -47,7 +47,7 @@ public:
      * @param release_count The number of slots to release
      * @return The number of free slots the semaphore had before this call
      */
-    ResultVal<s32> Release(s32 release_count);
+    Result Release(s32* out_count, s32 release_count);
 
 private:
     friend class boost::serialization::access;

src/core/hle/kernel/server_port.cpp

@@ -24,14 +24,12 @@ namespace Kernel {
 ServerPort::ServerPort(KernelSystem& kernel) : WaitObject(kernel) {}
 ServerPort::~ServerPort() {}
 
-ResultVal<std::shared_ptr<ServerSession>> ServerPort::Accept() {
-    if (pending_sessions.empty()) {
-        return ERR_NO_PENDING_SESSIONS;
-    }
+Result ServerPort::Accept(std::shared_ptr<ServerSession>* out_server_session) {
+    R_UNLESS(!pending_sessions.empty(), ResultNoPendingSessions);
 
-    auto session = std::move(pending_sessions.back());
+    *out_server_session = std::move(pending_sessions.back());
     pending_sessions.pop_back();
-    return session;
+    return ResultSuccess;
 }
 
 bool ServerPort::ShouldWait(const Thread* thread) const {

src/core/hle/kernel/server_port.h

@@ -39,9 +39,9 @@ public:
 
     /**
      * Accepts a pending incoming connection on this port. If there are no pending sessions, will
-     * return ERR_NO_PENDING_SESSIONS.
+     * return ResultNoPendingSessions.
      */
-    ResultVal<std::shared_ptr<ServerSession>> Accept();
+    Result Accept(std::shared_ptr<ServerSession>* out_server_session);
 
     /**
      * Sets the HLE handler template for the port. ServerSessions crated by connecting to this port

src/core/hle/kernel/server_session.cpp

@@ -77,7 +77,7 @@ void ServerSession::Acquire(Thread* thread) {
     pending_requesting_threads.pop_back();
 }
 
-ResultCode ServerSession::HandleSyncRequest(std::shared_ptr<Thread> thread) {
+Result ServerSession::HandleSyncRequest(std::shared_ptr<Thread> thread) {
     // The ServerSession received a sync request, this means that there's new data available
     // from its ClientSession, so wake up any threads that may be waiting on a svcReplyAndReceive or
     // similar.
@@ -136,7 +136,7 @@ ResultCode ServerSession::HandleSyncRequest(std::shared_ptr<Thread> thread) {
     // If this ServerSession does not have an HLE implementation, just wake up the threads waiting
     // on it.
     WakeupAllWaitingThreads();
-    return RESULT_SUCCESS;
+    return ResultSuccess;
 }
 
 KernelSystem::SessionPair KernelSystem::CreateSessionPair(const std::string& name,