Improve Sync

This reverts commit ee197e6222.

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md)
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4247
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/BooleanSetting.kt

@@ -30,7 +30,6 @@ enum class BooleanSetting(override val key: String) : AbstractBooleanSetting {
     RENDERER_REACTIVE_FLUSHING("use_reactive_flushing"),
     ENABLE_BUFFER_HISTORY("enable_buffer_history"),
     USE_OPTIMIZED_VERTEX_BUFFERS("use_optimized_vertex_buffers"),
-    ENABLE_GPU_BUFFER_READBACK("enable_gpu_buffer_readback"),
     SYNC_MEMORY_OPERATIONS("sync_memory_operations"),
     BUFFER_REORDER_DISABLE("disable_buffer_reorder"),
     RENDERER_DEBUG("debug"),

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt

@@ -808,13 +808,6 @@ abstract class SettingsItem(
                     descriptionId = R.string.enable_buffer_history_description
                 )
             )
-            put(
-                SwitchSetting(
-                    BooleanSetting.ENABLE_GPU_BUFFER_READBACK,
-                    titleId = R.string.enable_gpu_buffer_readback,
-                    descriptionId = R.string.enable_gpu_buffer_readback_description
-                )
-            )
             put(
                 SwitchSetting(
                     BooleanSetting.USE_OPTIMIZED_VERTEX_BUFFERS,

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt

@@ -293,7 +293,6 @@ class SettingsFragmentPresenter(
             add(BooleanSetting.RENDERER_FORCE_MAX_CLOCK.key)
             add(BooleanSetting.RENDERER_REACTIVE_FLUSHING.key)
             add(BooleanSetting.ENABLE_BUFFER_HISTORY.key)
-            add(BooleanSetting.ENABLE_GPU_BUFFER_READBACK.key)
             add(BooleanSetting.USE_OPTIMIZED_VERTEX_BUFFERS.key)
 
             add(HeaderSetting(R.string.hacks))

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

@@ -20,132 +20,96 @@ struct RomMetadata {
     std::vector<u8> icon;
     bool isHomebrew;
 };
+static ankerl::unordered_dense::map<std::string, RomMetadata> m_rom_metadata_cache;
 
-ankerl::unordered_dense::map<std::string, RomMetadata> m_rom_metadata_cache;
+static RomMetadata CacheRomMetadata(const std::string& path) {
+    auto& instance = EmulationSession::GetInstance();
+    const auto file = Core::GetGameFileFromPath(instance.System().GetFilesystem(), path);
+    if (auto loader = Loader::GetLoader(instance.System(), file, 0, 0); loader) {
+        RomMetadata entry;
+        loader->ReadTitle(entry.title);
+        loader->ReadProgramId(entry.programId);
+        loader->ReadIcon(entry.icon);
 
-RomMetadata CacheRomMetadata(const std::string& path) {
-    const auto file =
-        Core::GetGameFileFromPath(EmulationSession::GetInstance().System().GetFilesystem(), path);
-    auto loader = Loader::GetLoader(EmulationSession::GetInstance().System(), file, 0, 0);
+        const FileSys::PatchManager pm{
+            entry.programId,
+            instance.System().GetFileSystemController(),
+            instance.System().GetContentProvider()
+        };
+        const auto control = pm.GetControlMetadata();
 
-    RomMetadata entry;
-    loader->ReadTitle(entry.title);
-    loader->ReadProgramId(entry.programId);
-    loader->ReadIcon(entry.icon);
-
-    const FileSys::PatchManager pm{
-        entry.programId, EmulationSession::GetInstance().System().GetFileSystemController(),
-        EmulationSession::GetInstance().System().GetContentProvider()};
-    const auto control = pm.GetControlMetadata();
-
-    if (control.first != nullptr) {
-        entry.developer = control.first->GetDeveloperName();
-        entry.version = control.first->GetVersionString();
-    } else {
-        FileSys::NACP nacp;
-        if (loader->ReadControlData(nacp) == Loader::ResultStatus::Success) {
-            entry.developer = nacp.GetDeveloperName();
+        if (control.first != nullptr) {
+            entry.developer = control.first->GetDeveloperName();
+            entry.version = control.first->GetVersionString();
         } else {
-            entry.developer = "";
+            FileSys::NACP nacp{};
+            entry.developer = loader->ReadControlData(nacp) == Loader::ResultStatus::Success
+                ? nacp.GetDeveloperName()
+                : "";
+            entry.version = "1.0.0";
         }
-
-        entry.version = "1.0.0";
+        if (loader->GetFileType() == Loader::FileType::NRO) {
+            auto loader_nro = reinterpret_cast<Loader::AppLoader_NRO*>(loader.get());
+            entry.isHomebrew = loader_nro->IsHomebrew();
+        } else {
+            entry.isHomebrew = false;
+        }
+        m_rom_metadata_cache[path] = entry;
+        return entry;
     }
-
-    if (loader->GetFileType() == Loader::FileType::NRO) {
-        auto loader_nro = reinterpret_cast<Loader::AppLoader_NRO*>(loader.get());
-        entry.isHomebrew = loader_nro->IsHomebrew();
-    } else {
-        entry.isHomebrew = false;
-    }
-
-    m_rom_metadata_cache[path] = entry;
-
-    return entry;
+    return {};
 }
 
-RomMetadata GetRomMetadata(const std::string& path, bool reload = false) {
-    if (reload) {
+static RomMetadata GetRomMetadata(const std::string& path, bool reload = false) {
+    if (reload)
         return CacheRomMetadata(path);
-    }
-
-    if (auto search = m_rom_metadata_cache.find(path); search != m_rom_metadata_cache.end()) {
-        return search->second;
-    }
-
+    if (auto it = m_rom_metadata_cache.find(path); it != m_rom_metadata_cache.end())
+        return it->second;
     return CacheRomMetadata(path);
 }
 
 extern "C" {
 
-jboolean Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getIsValid(JNIEnv* env, jobject obj,
-                                                               jstring jpath) {
-    const auto file = EmulationSession::GetInstance().System().GetFilesystem()->OpenFile(
-        Common::Android::GetJString(env, jpath), FileSys::OpenMode::Read);
-    if (!file) {
-        return false;
+jboolean Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getIsValid(JNIEnv* env, jobject obj, jstring jpath) {
+    if (auto const file = EmulationSession::GetInstance().System().GetFilesystem()->OpenFile(Common::Android::GetJString(env, jpath), FileSys::OpenMode::Read); file) {
+        if (auto loader = Loader::GetLoader(EmulationSession::GetInstance().System(), file); loader) {
+            auto const file_type = loader->GetFileType();
+            if (file_type == Loader::FileType::Unknown || file_type == Loader::FileType::Error)
+                return false;
+            if ((file_type == Loader::FileType::NSP || file_type == Loader::FileType::XCI) && !Loader::IsBootableGameContainer(file, file_type))
+                return false;
+            u64 program_id = 0;
+            return loader->ReadProgramId(program_id) == Loader::ResultStatus::Success;
+        }
     }
-
-    auto loader = Loader::GetLoader(EmulationSession::GetInstance().System(), file);
-    if (!loader) {
-        return false;
-    }
-
-    const auto file_type = loader->GetFileType();
-    if (file_type == Loader::FileType::Unknown || file_type == Loader::FileType::Error) {
-        return false;
-    }
-
-    if ((file_type == Loader::FileType::NSP || file_type == Loader::FileType::XCI) &&
-        !Loader::IsBootableGameContainer(file, file_type)) {
-        return false;
-    }
-
-    u64 program_id = 0;
-    Loader::ResultStatus res = loader->ReadProgramId(program_id);
-    if (res != Loader::ResultStatus::Success) {
-        return false;
-    }
-    return true;
+    return false;
 }
 
-jstring Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getTitle(JNIEnv* env, jobject obj,
-                                                            jstring jpath) {
-    return Common::Android::ToJString(
-        env, GetRomMetadata(Common::Android::GetJString(env, jpath)).title);
+jstring Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getTitle(JNIEnv* env, jobject obj, jstring jpath) {
+    return Common::Android::ToJString(env, GetRomMetadata(Common::Android::GetJString(env, jpath)).title);
 }
 
-jstring Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getProgramId(JNIEnv* env, jobject obj,
-                                                                jstring jpath) {
-    return Common::Android::ToJString(
-        env, std::to_string(GetRomMetadata(Common::Android::GetJString(env, jpath)).programId));
+jstring Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getProgramId(JNIEnv* env, jobject obj, jstring jpath) {
+    return Common::Android::ToJString(env, std::to_string(GetRomMetadata(Common::Android::GetJString(env, jpath)).programId));
 }
 
-jstring Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getDeveloper(JNIEnv* env, jobject obj,
-                                                                jstring jpath) {
-    return Common::Android::ToJString(
-        env, GetRomMetadata(Common::Android::GetJString(env, jpath)).developer);
+jstring Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getDeveloper(JNIEnv* env, jobject obj, jstring jpath) {
+    return Common::Android::ToJString(env, GetRomMetadata(Common::Android::GetJString(env, jpath)).developer);
 }
 
-jstring Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getVersion(JNIEnv* env, jobject obj,
-                                                              jstring jpath, jboolean jreload) {
-    return Common::Android::ToJString(
-        env, GetRomMetadata(Common::Android::GetJString(env, jpath), jreload).version);
+jstring Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getVersion(JNIEnv* env, jobject obj, jstring jpath, jboolean jreload) {
+    return Common::Android::ToJString(env, GetRomMetadata(Common::Android::GetJString(env, jpath), jreload).version);
 }
 
-jbyteArray Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getIcon(JNIEnv* env, jobject obj,
-                                                              jstring jpath) {
+jbyteArray Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getIcon(JNIEnv* env, jobject obj, jstring jpath) {
     auto icon_data = GetRomMetadata(Common::Android::GetJString(env, jpath)).icon;
-    jbyteArray icon = env->NewByteArray(static_cast<jsize>(icon_data.size()));
-    env->SetByteArrayRegion(icon, 0, env->GetArrayLength(icon),
-                            reinterpret_cast<jbyte*>(icon_data.data()));
+    jbyteArray icon = env->NewByteArray(jsize(icon_data.size()));
+    env->SetByteArrayRegion(icon, 0, env->GetArrayLength(icon), reinterpret_cast<jbyte*>(icon_data.data()));
     return icon;
 }
 
-jboolean Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getIsHomebrew(JNIEnv* env, jobject obj,
-                                                                  jstring jpath) {
-    return static_cast<jboolean>(
-        GetRomMetadata(Common::Android::GetJString(env, jpath)).isHomebrew);
+jboolean Java_org_yuzu_yuzu_1emu_utils_GameMetadata_getIsHomebrew(JNIEnv* env, jobject obj, jstring jpath) {
+    return jboolean(GetRomMetadata(Common::Android::GetJString(env, jpath)).isHomebrew);
 }
 
 void Java_org_yuzu_yuzu_1emu_utils_GameMetadata_resetMetadata(JNIEnv* env, jobject obj) {

src/android/app/src/main/res/values-ar/strings.xml

@@ -499,8 +499,6 @@
     <string name="renderer_reactive_flushing_description">يحسن دقة العرض في بعض الألعاب على حساب الأداء.</string>
     <string name="enable_buffer_history">تمكين سجل التخزين المؤقت</string>
     <string name="enable_buffer_history_description">يُتيح هذا الخيار الوصول إلى حالات التخزين المؤقت السابقة. وقد يُحسّن جودة العرض وثبات الأداء في بعض الألعاب.</string>
-    <string name="enable_gpu_buffer_readback">تفعيل قراءة مخزن وحدة معالجة الرسومات</string>
-    <string name="enable_gpu_buffer_readback_description">يحافظ هذا النظام على بيانات المخزن المؤقت المُعدّلة بواسطة وحدة معالجة الرسومات عن طريق قراءتها مرة أخرى قبل التحميل. تتطلب بعض الألعاب ذلك لعرض بعض التأثيرات بشكل صحيح. قد يُسبب ذلك مشاكل إذا لم يتمكن الجهاز من التعامل مع عبء العمل الإضافي.</string>
     <string name="use_optimized_vertex_buffers">مخازن الرؤوس المُحسّنة</string>
     <string name="use_optimized_vertex_buffers_description">يُتيح ربطًا مُحسَّنًا لمخازن الرؤوس لتحسين الأداء. يتطلب برامج تشغيل Mesa 26.0+ Turnip/ برامج تشغيل QCOM. قد يتعطل على برامج تشغيل Turnip القديمة (25.3 وما دون).</string>
 

src/android/app/src/main/res/values-es/strings.xml

@@ -491,8 +491,6 @@
     <string name="renderer_reactive_flushing_description">Mejora la precisión de renderizado en algunos juegos, pero reduce el rendimiento.</string>
     <string name="enable_buffer_history">Activar el historial del búfer</string>
     <string name="enable_buffer_history_description">Permite el acceso al estado del búfer anterior. Esta opción puede mejorar la calidad de renderizado y la consistencia en el rendimiento de algunos juegos.</string>
-    <string name="enable_gpu_buffer_readback">Activar la lectura del buffer de la GPU</string>
-    <string name="enable_gpu_buffer_readback_description">Conserva los datos del búfer modificados por la GPU leyéndolos antes de subirlos.\nAlgunos juegos requieren esto para renderizar correctamente ciertos efectos.\nPuede causar problemas si el hardware no puede soportar la carga de trabajo adicional.</string>
     <string name="use_optimized_vertex_buffers">Búferes de vértices optimizados</string>
     <string name="use_optimized_vertex_buffers_description">Permite la optimización del enlace del búfer de vértices para un mejor rendimiento. Requiere controladores Mesa 26.0+ Turnip/ controladores QCOM. Fallará con controladores Turnip más antiguos (versión 25.3 o inferior).</string>
 

src/android/app/src/main/res/values-zh-rCN/strings.xml

@@ -489,8 +489,6 @@
     <string name="renderer_reactive_flushing_description">通过牺牲性能来提升某些游戏的渲染精度。</string>
     <string name="enable_buffer_history">启用缓冲区历史</string>
     <string name="enable_buffer_history_description">启用对先前缓冲区状态的访问。此选项可在某些游戏中提升渲染质量并保持性能的一致性。</string>
-    <string name="enable_gpu_buffer_readback">启用 GPU 缓冲区回读</string>
-    <string name="enable_gpu_buffer_readback_description">在上传前回读经由 GPU 修改过的缓冲区数据，以将其保留。一些游戏会用到这项设定以正确渲染某些效果。如果硬件无法处理额外的工作负载，则可能会导致问题。</string>
     <string name="use_optimized_vertex_buffers">优化顶点缓冲区</string>
     <string name="use_optimized_vertex_buffers_description">启用经过优化的顶点缓冲区绑定以提升性能。需要 Mesa 26.0 及以上版本的 Turnip 或 QCOM 驱动程序。若使用较旧版本的 Turnip 驱动 (25.3 及以下版本) 则会导致崩溃。</string>
 

src/android/app/src/main/res/values/strings.xml

@@ -505,8 +505,6 @@
     <string name="renderer_reactive_flushing_description">Improves rendering accuracy in some games at the cost of performance.</string>
     <string name="enable_buffer_history">Enable buffer history</string>
     <string name="enable_buffer_history_description">Enables access to previous buffer states. This option may improve rendering quality and performance consistency in some games.</string>
-    <string name="enable_gpu_buffer_readback">Enable GPU Buffer Readback</string>
-    <string name="enable_gpu_buffer_readback_description">Preserves GPU-modified buffer data by reading it back before uploads. Some games require this to render certain effects properly. May cause issues if the hardware cannot handle the additional workload.</string>
     <string name="use_optimized_vertex_buffers">Optimized Vertex Buffers</string>
     <string name="use_optimized_vertex_buffers_description">Enables optimized vertex buffer binding for improved performance. Requires Mesa 26.0+ Turnip drivers/ QCOM drivers. Will crash on older Turnip drivers (25.3 and below).</string>
 

src/common/settings.h

@@ -576,13 +576,6 @@ struct Values {
         false,
 #endif
         "rescale_hack", Category::RendererHacks};
-    SwitchableSetting<bool> enable_gpu_buffer_readback{linkage,
-                                                       false,
-                                                       "enable_gpu_buffer_readback",
-                                                       Category::RendererAdvanced,
-                                                       Specialization::Default,
-                                                       true,
-                                                       true};
 
     SwitchableSetting<bool> use_asynchronous_shaders{linkage, false, "use_asynchronous_shaders",
                                                      Category::RendererHacks};

src/common/uuid.cpp

@@ -208,4 +208,12 @@ UUID UUID::MakeRandomRFC4122V4() {
     return uuid;
 }
 
+UUID UUID::MakeRFC4122V5(std::span<u8, 20> sha1) {
+    UUID uuid{};
+    std::memcpy(&uuid.uuid, sha1.data(), sizeof(UUID));
+    uuid.uuid[8] = 0x80 | (uuid.uuid[8] & 0x3F);
+    uuid.uuid[6] = 0x50 | (uuid.uuid[6] & 0xF);
+    return uuid;
+}
+
 } // namespace Common

src/common/uuid.h

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -5,6 +8,7 @@
 
 #include <array>
 #include <functional>
+#include <span>
 #include <string>
 
 #include "common/common_types.h"
@@ -86,28 +90,20 @@ struct UUID {
         };
     }
 
-    /**
-     * Creates a random UUID.
-     *
-     * @returns A random UUID.
-     */
-    static UUID MakeRandom();
+    /// @brief Creates a random UUID.
+    /// @returns A random UUID.
+    [[nodiscard]] static UUID MakeRandom();
 
-    /**
-     * Creates a random UUID with a seed.
-     *
-     * @param seed A seed to initialize the Mersenne-Twister RNG
-     *
-     * @returns A random UUID.
-     */
-    static UUID MakeRandomWithSeed(u32 seed);
+    /// @brief Creates a random UUID with a seed.
+    /// @param seed A seed to initialize the Mersenne-Twister RNG
+    /// @returns A random UUID.
+    [[nodiscard]] static UUID MakeRandomWithSeed(u32 seed);
 
-    /**
-     * Creates a random UUID. The generated UUID is RFC 4122 Version 4 compliant.
-     *
-     * @returns A random UUID that is RFC 4122 Version 4 compliant.
-     */
-    static UUID MakeRandomRFC4122V4();
+    /// @brief Creates a random UUID. The generated UUID is RFC 4122 Version 4 compliant.
+    /// @returns A random UUID that is RFC 4122 Version 4 compliant.
+    [[nodiscard]] static UUID MakeRandomRFC4122V4();
+
+    [[nodiscard]] static UUID MakeRFC4122V5(std::span<u8, 20> sha1);
 
     friend constexpr bool operator==(const UUID& lhs, const UUID& rhs) = default;
 };

src/core/file_sys/control_metadata.h

@@ -274,23 +274,22 @@ public:
     explicit NACP(VirtualFile file);
     ~NACP();
 
-    const LanguageEntry& GetLanguageEntry() const;
-    std::string GetApplicationName() const;
-    std::string GetDeveloperName() const;
-    u64 GetTitleId() const;
-    u64 GetDLCBaseTitleId() const;
-    std::string GetVersionString() const;
-    u64 GetDefaultNormalSaveSize() const;
-    u64 GetDefaultJournalSaveSize() const;
-    u32 GetSupportedLanguages() const;
-    std::vector<std::string> GetApplicationNames() const;
-    std::vector<u8> GetRawBytes() const;
-    bool GetUserAccountSwitchLock() const;
-    u64 GetDeviceSaveDataSize() const;
-    u32 GetParentalControlFlag() const;
-    const std::array<u8, 0x20>& GetRatingAge() const;
+    [[nodiscard]] const LanguageEntry& GetLanguageEntry() const;
+    [[nodiscard]] std::string GetApplicationName() const;
+    [[nodiscard]] std::string GetDeveloperName() const;
+    [[nodiscard]] u64 GetTitleId() const;
+    [[nodiscard]] u64 GetDLCBaseTitleId() const;
+    [[nodiscard]] std::string GetVersionString() const;
+    [[nodiscard]] u64 GetDefaultNormalSaveSize() const;
+    [[nodiscard]] u64 GetDefaultJournalSaveSize() const;
+    [[nodiscard]] u32 GetSupportedLanguages() const;
+    [[nodiscard]] std::vector<std::string> GetApplicationNames() const;
+    [[nodiscard]] std::vector<u8> GetRawBytes() const;
+    [[nodiscard]] bool GetUserAccountSwitchLock() const;
+    [[nodiscard]] u64 GetDeviceSaveDataSize() const;
+    [[nodiscard]] u32 GetParentalControlFlag() const;
+    [[nodiscard]] const std::array<u8, 0x20>& GetRatingAge() const;
 
-private:
     RawNACP raw{};
     std::vector<LanguageEntry> language_entries;
 };

src/core/file_sys/patch_manager.cpp

@@ -1156,4 +1156,14 @@ PatchManager::Metadata PatchManager::ParseControlNCA(const NCA& nca) const {
 
     return {std::move(nacp), icon_file};
 }
+
+[[nodiscard]] PatchManager::Metadata PatchManager::GetMetadataFromBaseOrUpdate(Core::System& system, u64 application_id) noexcept {
+    const FileSys::PatchManager pm{application_id, system.GetFileSystemController(), system.GetContentProvider()};
+    auto metadata = pm.GetControlMetadata();
+    if (metadata.first != nullptr)
+        return metadata;
+    const FileSys::PatchManager pm_update{FileSys::GetUpdateTitleID(application_id), system.GetFileSystemController(), system.GetContentProvider()};
+    return pm_update.GetControlMetadata();
+}
+
 } // namespace FileSys

src/core/file_sys/patch_manager.h

@@ -105,6 +105,9 @@ public:
     // Version of GetControlMetadata that takes an arbitrary NCA
     [[nodiscard]] Metadata ParseControlNCA(const NCA& nca) const;
 
+    /// @brief Gets NACP metadata (accounting for any patches or updates)
+    [[nodiscard]] static PatchManager::Metadata GetMetadataFromBaseOrUpdate(Core::System& system, u64 application_id) noexcept;
+
 private:
     [[nodiscard]] std::vector<VirtualFile> CollectPatches(const std::vector<VirtualDir>& patch_dirs,
                                                           const std::string& build_id) const;

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

@@ -4,6 +4,8 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include <openssl/evp.h>
+
 #include "common/settings.h"
 #include "common/uuid.h"
 #include "core/file_sys/control_metadata.h"
@@ -154,20 +156,7 @@ Result IApplicationFunctions::GetDesiredLanguage(Out<u64> out_language_code) {
     // Default to 0 (all languages supported)
     u32 supported_languages = 0;
 
-    const auto res = [this] {
-        const FileSys::PatchManager pm{m_applet->program_id, system.GetFileSystemController(),
-                                       system.GetContentProvider()};
-        auto metadata = pm.GetControlMetadata();
-        if (metadata.first != nullptr) {
-            return metadata;
-        }
-
-        const FileSys::PatchManager pm_update{FileSys::GetUpdateTitleID(m_applet->program_id),
-                                              system.GetFileSystemController(),
-                                              system.GetContentProvider()};
-        return pm_update.GetControlMetadata();
-    }();
-
+    const auto res = FileSys::PatchManager::GetMetadataFromBaseOrUpdate(system, m_applet->program_id);
     if (res.first != nullptr) {
         supported_languages = res.first->GetSupportedLanguages();
     }
@@ -205,20 +194,7 @@ Result IApplicationFunctions::SetTerminateResult(Result terminate_result) {
 Result IApplicationFunctions::GetDisplayVersion(Out<DisplayVersion> out_display_version) {
     LOG_DEBUG(Service_AM, "called");
 
-    const auto res = [this] {
-        const FileSys::PatchManager pm{m_applet->program_id, system.GetFileSystemController(),
-                                       system.GetContentProvider()};
-        auto metadata = pm.GetControlMetadata();
-        if (metadata.first != nullptr) {
-            return metadata;
-        }
-
-        const FileSys::PatchManager pm_update{FileSys::GetUpdateTitleID(m_applet->program_id),
-                                              system.GetFileSystemController(),
-                                              system.GetContentProvider()};
-        return pm_update.GetControlMetadata();
-    }();
-
+    const auto res = FileSys::PatchManager::GetMetadataFromBaseOrUpdate(system, m_applet->program_id);
     if (res.first != nullptr) {
         const auto& version = res.first->GetVersionString();
         std::memcpy(out_display_version->string.data(), version.data(),
@@ -347,8 +323,21 @@ Result IApplicationFunctions::NotifyRunning(Out<bool> out_became_running) {
 }
 
 Result IApplicationFunctions::GetPseudoDeviceId(Out<Common::UUID> out_pseudo_device_id) {
-    LOG_WARNING(Service_AM, "(STUBBED) called");
-    *out_pseudo_device_id = {};
+    LOG_WARNING(Service_AM, "(stubbed)");
+
+    // This should be hashed with the device specific hash
+    // for now this will do
+    const auto res = FileSys::PatchManager::GetMetadataFromBaseOrUpdate(system, m_applet->program_id);
+    u8 hash[EVP_MAX_MD_SIZE];
+    unsigned int hash_len = 0;
+    auto const seed = res.first->raw.seed_for_pseudo_device_id;
+    EVP_MD_CTX *ctx = EVP_MD_CTX_new();
+    auto const algorithm = EVP_sha1();
+    EVP_DigestInit_ex(ctx, algorithm, nullptr);
+    EVP_DigestUpdate(ctx, &seed, sizeof(seed));
+    EVP_DigestFinal_ex(ctx, hash, &hash_len);
+    EVP_MD_CTX_free(ctx);
+    *out_pseudo_device_id = Common::UUID::MakeRFC4122V5(std::span<u8, 20>{hash, std::size(hash)});
     R_SUCCEED();
 }
 

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

@@ -252,19 +252,7 @@ Result ILibraryAppletSelfAccessor::GetMainAppletApplicationDesiredLanguage(
     // Default to 0 (all languages supported)
     u32 supported_languages = 0;
 
-    const auto res = [this, identity] {
-        const FileSys::PatchManager pm{identity.application_id, system.GetFileSystemController(),
-                                       system.GetContentProvider()};
-        auto metadata = pm.GetControlMetadata();
-        if (metadata.first != nullptr) {
-            return metadata;
-        }
-
-        const FileSys::PatchManager pm_update{FileSys::GetUpdateTitleID(identity.application_id),
-                                              system.GetFileSystemController(),
-                                              system.GetContentProvider()};
-        return pm_update.GetControlMetadata();
-    }();
+    const auto res = FileSys::PatchManager::GetMetadataFromBaseOrUpdate(system, identity.application_id);
 
     if (res.first != nullptr) {
         supported_languages = res.first->GetSupportedLanguages();

src/hid_core/frontend/emulated_console.cpp

@@ -100,6 +100,7 @@ void EmulatedConsole::ReloadInput() {
     motion.gyro = emulated_motion.GetGyroscope();
     motion.rotation = emulated_motion.GetRotations();
     motion.orientation = emulated_motion.GetOrientation();
+    motion.quaternion = emulated_motion.GetQuaternion();
     motion.is_at_rest = !emulated_motion.IsMoving(motion_sensitivity);
 
     // Unique index for identifying touch device source

src/qt_common/config/shared_translation.cpp

@@ -226,8 +226,6 @@ std::unique_ptr<TranslationMap> InitializeTranslations(QObject* parent) {
            tr("Controls the DMA read mode.\nUnsafe is faster, while Safe is more stable and can fix issues in some games.\nDefault follows the GPU Accuracy setting."));
     INSERT(Settings, gpu_fence_behavior, tr("GPU Fence Behavior:"),
            tr("Controls the GPU fence synchronization behavior.\nImmediate is the fastest option, but can introduce some issues.\nBalanced offers better compatibility and may fix issues in some games.\nAccurate further improves compatibility at the cost of some performance.\nStrict is the slowest option, but can fix issues that require stricter synchronization.\nDefault follows the GPU Accuracy setting."));
-    INSERT(Settings, enable_gpu_buffer_readback, tr("Enable GPU buffer readback"),
-           tr("Preserves GPU-modified data by reading it back before uploading.\nSome games require this to render certain effects properly."));
     INSERT(Settings, use_asynchronous_shaders, tr("Enable asynchronous shader compilation"),
            tr("May reduce shader stutter."));
     INSERT(Settings, fast_gpu_time, tr("Fast GPU Time"),

src/video_core/buffer_cache/buffer_cache.h

@@ -1448,8 +1448,8 @@ BufferId BufferCache<P>::FindBuffer(DAddr device_addr, u32 size) {
     const BufferId buffer_id = page_table[page];
     if (buffer_id) {
         Buffer& buffer = slot_buffers[buffer_id];
-        WaitForGpuFenceIfNeeded(buffer);
         if (buffer.IsInBounds(device_addr, size)) {
+            SynchronizeBufferIfNeeded(buffer);
             return buffer_id;
         }
     }
@@ -1457,16 +1457,28 @@ BufferId BufferCache<P>::FindBuffer(DAddr device_addr, u32 size) {
 }
 
 template <class P>
-void BufferCache<P>::WaitForGpuFenceIfNeeded(Buffer& buffer) {
-    if constexpr (!IS_OPENGL) {
-        const bool gpu_fence_accurate = Settings::IsGPUFenceBehaviorAccurate();
-        const bool gpu_fence_strict = Settings::IsGPUFenceBehaviorStrict();
-        if (gpu_fence_accurate || gpu_fence_strict) {
-            const u64 gpu_tick_delay = gpu_fence_strict ? 0 : 3;
-            const u64 buffer_tick = buffer.getWriteTick();
-            const u64 gpu_tick = runtime.KnownGpuTick();
-            if (buffer_tick > gpu_tick + gpu_tick_delay) {
-                runtime.Wait(buffer_tick);
+void BufferCache<P>::SynchronizeBufferIfNeeded(Buffer& buffer) {
+    const bool gpu_fence_accurate = Settings::IsGPUFenceBehaviorAccurate();
+    const bool gpu_fence_strict = Settings::IsGPUFenceBehaviorStrict();
+    const bool should_sync = gpu_fence_accurate || gpu_fence_strict;
+    if (should_sync) {
+        if (gpu_fence_accurate) {
+            if constexpr (!IS_OPENGL) {
+                const bool should_wait = buffer.getWriteTick() > runtime.KnownGpuTick() + 3;
+                if (should_wait) {
+                    runtime.Wait(buffer.getWriteTick());
+                }
+            }
+        } else if (gpu_fence_strict) {
+            bool should_download = true;
+            if constexpr (!IS_OPENGL) {
+                should_download = buffer.getWriteTick() > runtime.KnownGpuTick();
+                if (should_download) {
+                    runtime.Wait(buffer.getWriteTick());
+                }
+            }
+            if (should_download) {
+                DownloadBufferMemory(buffer);
             }
         }
     }
@@ -1688,9 +1700,6 @@ void BufferCache<P>::ImmediateUploadMemory([[maybe_unused]] Buffer& buffer,
                 if (immediate_buffer.empty()) {
                     immediate_buffer = ImmediateBuffer(largest_copy);
                 }
-                if (Settings::values.enable_gpu_buffer_readback.GetValue()) {
-                    DownloadBufferMemory(buffer, device_addr, copy.size);
-                }
                 device_memory.ReadBlockUnsafe(device_addr, immediate_buffer.data(), copy.size);
                 upload_span = immediate_buffer.subspan(0, copy.size);
             }
@@ -1709,9 +1718,6 @@ void BufferCache<P>::MappedUploadMemory([[maybe_unused]] Buffer& buffer,
         for (BufferCopy& copy : copies) {
             u8* const src_pointer = staging_pointer.data() + copy.src_offset;
             const DAddr device_addr = buffer.CpuAddr() + copy.dst_offset;
-            if (Settings::values.enable_gpu_buffer_readback.GetValue()) {
-                DownloadBufferMemory(buffer, device_addr, copy.size);
-            }
             device_memory.ReadBlockUnsafe(device_addr, src_pointer, copy.size);
             // Apply the staging offset
             copy.src_offset += upload_staging.offset;

src/video_core/buffer_cache/buffer_cache_base.h

@@ -435,6 +435,8 @@ private:
 
     bool SynchronizeBuffer(Buffer& buffer, DAddr device_addr, u32 size);
 
+    void SynchronizeBufferIfNeeded(Buffer& buffer);
+
     void UploadMemory(Buffer& buffer, u64 total_size_bytes, u64 largest_copy,
                       std::span<BufferCopy> copies);