Android 216

android: Multi-program app switching

README.md

@@ -1,8 +1,10 @@
 | Pull Request | Commit | Title | Author | Merged? |
 |----|----|----|----|----|
 | [12749](https://github.com/yuzu-emu/yuzu-android//pull/12749) | [`e3171486d`](https://github.com/yuzu-emu/yuzu-android//pull/12749/files) | general: workarounds for SMMU syncing issues | [liamwhite](https://github.com/liamwhite/) | Yes |
-| [12760](https://github.com/yuzu-emu/yuzu-android//pull/12760) | [`eb46f21c5`](https://github.com/yuzu-emu/yuzu-android//pull/12760/files) | am: rewrite for multiprocess support | [liamwhite](https://github.com/liamwhite/) | Yes |
+| [12760](https://github.com/yuzu-emu/yuzu-android//pull/12760) | [`53f17ede1`](https://github.com/yuzu-emu/yuzu-android//pull/12760/files) | am: rewrite for multiprocess support | [liamwhite](https://github.com/liamwhite/) | Yes |
 | [12802](https://github.com/yuzu-emu/yuzu-android//pull/12802) | [`c5e88c654`](https://github.com/yuzu-emu/yuzu-android//pull/12802/files) | service: mii: Migrate service to new interface | [german77](https://github.com/german77/) | Yes |
+| [12826](https://github.com/yuzu-emu/yuzu-android//pull/12826) | [`2d8f80b65`](https://github.com/yuzu-emu/yuzu-android//pull/12826/files) | android: Show system driver information | [t895](https://github.com/t895/) | Yes |
+| [12827](https://github.com/yuzu-emu/yuzu-android//pull/12827) | [`c770af9b1`](https://github.com/yuzu-emu/yuzu-android//pull/12827/files) | android: Disable focus on loading card | [t895](https://github.com/t895/) | Yes |
 
 
 End of merge log. You can find the original README.md below the break.

externals/nx_tzdb/CMakeLists.txt

@@ -32,7 +32,7 @@ set(NX_TZDB_ARCHIVE "${CMAKE_CURRENT_BINARY_DIR}/${NX_TZDB_VERSION}.zip")
 
 set(NX_TZDB_ROMFS_DIR "${CMAKE_CURRENT_BINARY_DIR}/nx_tzdb")
 
-if ((NOT CAN_BUILD_NX_TZDB OR YUZU_DOWNLOAD_TIME_ZONE_DATA) AND NOT EXISTS ${NX_TZDB_ARCHIVE})
+if ((NOT CAN_BUILD_NX_TZDB OR YUZU_DOWNLOAD_TIME_ZONE_DATA) AND NOT EXISTS ${NX_TZDB_ROMFS_DIR})
     set(NX_TZDB_DOWNLOAD_URL "https://github.com/lat9nq/tzdb_to_nx/releases/download/${NX_TZDB_VERSION}/${NX_TZDB_VERSION}.zip")
 
     message(STATUS "Downloading time zone data from ${NX_TZDB_DOWNLOAD_URL}...")

externals/nx_tzdb/NxTzdbCreateHeader.cmake

@@ -11,6 +11,10 @@ execute_process(
     WORKING_DIRECTORY ${ZONE_PATH}
     OUTPUT_VARIABLE FILE_LIST)
 
+if (NOT FILE_LIST)
+    message(FATAL_ERROR "No timezone files found in directory ${ZONE_PATH}, did the download fail?")
+endif()
+
 set(DIRECTORY_NAME ${HEADER_NAME})
 
 set(FILE_DATA "")

src/android/app/src/main/java/org/yuzu/yuzu_emu/NativeLibrary.kt

@@ -261,7 +261,7 @@ object NativeLibrary {
     /**
      * Begins emulation.
      */
-    external fun run(path: String?)
+    external fun run(path: String?, programIndex: Int = 0)
 
     // Surface Handling
     external fun surfaceChanged(surf: Surface?)
@@ -489,6 +489,12 @@ object NativeLibrary {
         sEmulationActivity.get()!!.onEmulationStopped(status)
     }
 
+    @Keep
+    @JvmStatic
+    fun onProgramChanged(programIndex: Int) {
+        sEmulationActivity.get()!!.onProgramChanged(programIndex)
+    }
+
     /**
      * Logs the Yuzu version, Android version and, CPU.
      */

src/android/app/src/main/java/org/yuzu/yuzu_emu/activities/EmulationActivity.kt

@@ -76,7 +76,6 @@ class EmulationActivity : AppCompatActivity(), SensorEventListener {
 
     override fun onDestroy() {
         stopForegroundService(this)
-        emulationViewModel.clear()
         super.onDestroy()
     }
 
@@ -446,9 +445,14 @@ class EmulationActivity : AppCompatActivity(), SensorEventListener {
     }
 
     fun onEmulationStopped(status: Int) {
-        if (status == 0) {
+        if (status == 0 && emulationViewModel.programChanged.value == -1) {
             finish()
         }
+        emulationViewModel.setEmulationStopped(true)
+    }
+
+    fun onProgramChanged(programIndex: Int) {
+        emulationViewModel.setProgramChanged(programIndex)
     }
 
     private fun startMotionSensorListener() {

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/EmulationFragment.kt

@@ -301,6 +301,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
 
                 R.id.menu_exit -> {
                     emulationState.stop()
+                    NativeConfig.reloadGlobalConfig()
                     emulationViewModel.setIsEmulationStopping(true)
                     binding.drawerLayout.close()
                     binding.inGameMenu.requestFocus()
@@ -423,10 +424,38 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
                     }
                 }
             }
+            launch {
+                repeatOnLifecycle(Lifecycle.State.CREATED) {
+                    emulationViewModel.programChanged.collect {
+                        if (it != 0) {
+                            emulationViewModel.setEmulationStarted(false)
+                            binding.drawerLayout.close()
+                            binding.drawerLayout
+                                .setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED)
+                            ViewUtils.hideView(binding.surfaceInputOverlay)
+                            ViewUtils.showView(binding.loadingIndicator)
+                        }
+                    }
+                }
+            }
+            launch {
+                repeatOnLifecycle(Lifecycle.State.CREATED) {
+                    emulationViewModel.emulationStopped.collect {
+                        if (it && emulationViewModel.programChanged.value != -1) {
+                            if (perfStatsUpdater != null) {
+                                perfStatsUpdateHandler.removeCallbacks(perfStatsUpdater!!)
+                            }
+                            emulationState.changeProgram(emulationViewModel.programChanged.value)
+                            emulationViewModel.setProgramChanged(-1)
+                            emulationViewModel.setEmulationStopped(false)
+                        }
+                    }
+                }
+            }
         }
     }
 
-    private fun startEmulation() {
+    private fun startEmulation(programIndex: Int = 0) {
         if (!NativeLibrary.isRunning() && !NativeLibrary.isPaused()) {
             if (!DirectoryInitialization.areDirectoriesReady) {
                 DirectoryInitialization.start()
@@ -434,7 +463,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
 
             updateScreenLayout()
 
-            emulationState.run(emulationActivity!!.isActivityRecreated)
+            emulationState.run(emulationActivity!!.isActivityRecreated, programIndex)
         }
     }
 
@@ -832,6 +861,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
     ) {
         private var state: State
         private var surface: Surface? = null
+        lateinit var emulationThread: Thread
 
         init {
             // Starting state is stopped.
@@ -877,7 +907,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
         }
 
         @Synchronized
-        fun run(isActivityRecreated: Boolean) {
+        fun run(isActivityRecreated: Boolean, programIndex: Int = 0) {
             if (isActivityRecreated) {
                 if (NativeLibrary.isRunning()) {
                     state = State.PAUSED
@@ -888,10 +918,20 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
 
             // If the surface is set, run now. Otherwise, wait for it to get set.
             if (surface != null) {
-                runWithValidSurface()
+                runWithValidSurface(programIndex)
             }
         }
 
+        @Synchronized
+        fun changeProgram(programIndex: Int) {
+            emulationThread.join()
+            emulationThread = Thread({
+                Log.debug("[EmulationFragment] Starting emulation thread.")
+                NativeLibrary.run(gamePath, programIndex)
+            }, "NativeEmulation")
+            emulationThread.start()
+        }
+
         // Surface callbacks
         @Synchronized
         fun newSurface(surface: Surface?) {
@@ -931,7 +971,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
             }
         }
 
-        private fun runWithValidSurface() {
+        private fun runWithValidSurface(programIndex: Int = 0) {
             NativeLibrary.surfaceChanged(surface)
             if (!emulationCanStart.invoke()) {
                 return
@@ -939,9 +979,9 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
 
             when (state) {
                 State.STOPPED -> {
-                    val emulationThread = Thread({
+                    emulationThread = Thread({
                         Log.debug("[EmulationFragment] Starting emulation thread.")
-                        NativeLibrary.run(gamePath)
+                        NativeLibrary.run(gamePath, programIndex)
                     }, "NativeEmulation")
                     emulationThread.start()
                 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/model/DriverViewModel.kt

@@ -66,10 +66,13 @@ class DriverViewModel : ViewModel() {
 
     fun updateDriverList() {
         val selectedDriver = GpuDriverHelper.customDriverSettingData
+        val systemDriverData = GpuDriverHelper.getSystemDriverInfo()
         val newDriverList = mutableListOf(
             Driver(
                 selectedDriver == GpuDriverMetadata(),
-                YuzuApplication.appContext.getString(R.string.system_gpu_driver)
+                YuzuApplication.appContext.getString(R.string.system_gpu_driver),
+                systemDriverData?.get(0) ?: "",
+                systemDriverData?.get(1) ?: ""
             )
         )
         driverData.forEach {

src/android/app/src/main/java/org/yuzu/yuzu_emu/model/EmulationViewModel.kt

@@ -15,6 +15,12 @@ class EmulationViewModel : ViewModel() {
     val isEmulationStopping: StateFlow<Boolean> get() = _isEmulationStopping
     private val _isEmulationStopping = MutableStateFlow(false)
 
+    private val _emulationStopped = MutableStateFlow(false)
+    val emulationStopped = _emulationStopped.asStateFlow()
+
+    private val _programChanged = MutableStateFlow(-1)
+    val programChanged = _programChanged.asStateFlow()
+
     val shaderProgress: StateFlow<Int> get() = _shaderProgress
     private val _shaderProgress = MutableStateFlow(0)
 
@@ -35,6 +41,17 @@ class EmulationViewModel : ViewModel() {
         _isEmulationStopping.value = value
     }
 
+    fun setEmulationStopped(value: Boolean) {
+        if (value) {
+            _emulationStarted.value = false
+        }
+        _emulationStopped.value = value
+    }
+
+    fun setProgramChanged(programIndex: Int) {
+        _programChanged.value = programIndex
+    }
+
     fun setShaderProgress(progress: Int) {
         _shaderProgress.value = progress
     }
@@ -56,20 +73,4 @@ class EmulationViewModel : ViewModel() {
     fun setDrawerOpen(value: Boolean) {
         _drawerOpen.value = value
     }
-
-    fun clear() {
-        setEmulationStarted(false)
-        setIsEmulationStopping(false)
-        setShaderProgress(0)
-        setTotalShaders(0)
-        setShaderMessage("")
-    }
-
-    companion object {
-        const val KEY_EMULATION_STARTED = "EmulationStarted"
-        const val KEY_IS_EMULATION_STOPPING = "IsEmulationStarting"
-        const val KEY_SHADER_PROGRESS = "ShaderProgress"
-        const val KEY_TOTAL_SHADERS = "TotalShaders"
-        const val KEY_SHADER_MESSAGE = "ShaderMessage"
-    }
 }

src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/GpuDriverHelper.kt

@@ -3,8 +3,10 @@
 
 package org.yuzu.yuzu_emu.utils
 
+import android.graphics.SurfaceTexture
 import android.net.Uri
 import android.os.Build
+import android.view.Surface
 import java.io.File
 import java.io.IOException
 import org.yuzu.yuzu_emu.NativeLibrary
@@ -195,6 +197,11 @@ object GpuDriverHelper {
 
     external fun supportsCustomDriverLoading(): Boolean
 
+    external fun getSystemDriverInfo(
+        surface: Surface = Surface(SurfaceTexture(true)),
+        hookLibPath: String = GpuDriverHelper.hookLibPath!!
+    ): Array<String>?
+
     // Parse the custom driver metadata to retrieve the name.
     val installedCustomDriverData: GpuDriverMetadata
         get() = GpuDriverMetadata(File(driverInstallationPath + META_JSON_FILENAME))

src/android/app/src/main/jni/CMakeLists.txt

@@ -22,7 +22,7 @@ add_library(yuzu-android SHARED
 
 set_property(TARGET yuzu-android PROPERTY IMPORTED_LOCATION ${FFmpeg_LIBRARY_DIR})
 
-target_link_libraries(yuzu-android PRIVATE audio_core common core input_common frontend_common)
+target_link_libraries(yuzu-android PRIVATE audio_core common core input_common frontend_common Vulkan::Headers)
 target_link_libraries(yuzu-android PRIVATE android camera2ndk EGL glad jnigraphics log)
 if (ARCHITECTURE_arm64)
     target_link_libraries(yuzu-android PRIVATE adrenotools)

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

@@ -19,6 +19,7 @@ static jmethodID s_exit_emulation_activity;
 static jmethodID s_disk_cache_load_progress;
 static jmethodID s_on_emulation_started;
 static jmethodID s_on_emulation_stopped;
+static jmethodID s_on_program_changed;
 
 static jclass s_game_class;
 static jmethodID s_game_constructor;
@@ -123,6 +124,10 @@ jmethodID GetOnEmulationStopped() {
     return s_on_emulation_stopped;
 }
 
+jmethodID GetOnProgramChanged() {
+    return s_on_program_changed;
+}
+
 jclass GetGameClass() {
     return s_game_class;
 }
@@ -306,6 +311,8 @@ jint JNI_OnLoad(JavaVM* vm, void* reserved) {
         env->GetStaticMethodID(s_native_library_class, "onEmulationStarted", "()V");
     s_on_emulation_stopped =
         env->GetStaticMethodID(s_native_library_class, "onEmulationStopped", "(I)V");
+    s_on_program_changed =
+        env->GetStaticMethodID(s_native_library_class, "onProgramChanged", "(I)V");
 
     const jclass game_class = env->FindClass("org/yuzu/yuzu_emu/model/Game");
     s_game_class = reinterpret_cast<jclass>(env->NewGlobalRef(game_class));

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

@@ -19,6 +19,7 @@ jmethodID GetExitEmulationActivity();
 jmethodID GetDiskCacheLoadProgress();
 jmethodID GetOnEmulationStarted();
 jmethodID GetOnEmulationStopped();
+jmethodID GetOnProgramChanged();
 
 jclass GetGameClass();
 jmethodID GetGameConstructor();

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

@@ -61,6 +61,9 @@
 #include "jni/id_cache.h"
 #include "jni/native.h"
 #include "video_core/renderer_base.h"
+#include "video_core/renderer_vulkan/renderer_vulkan.h"
+#include "video_core/vulkan_common/vulkan_instance.h"
+#include "video_core/vulkan_common/vulkan_surface.h"
 
 #define jconst [[maybe_unused]] const auto
 #define jauto [[maybe_unused]] auto
@@ -209,7 +212,14 @@ void EmulationSession::InitializeSystem(bool reload) {
     m_system.GetFileSystemController().CreateFactories(*m_vfs);
 }
 
-Core::SystemResultStatus EmulationSession::InitializeEmulation(const std::string& filepath) {
+void EmulationSession::SetAppletId(int applet_id) {
+    m_applet_id = applet_id;
+    m_system.GetFrontendAppletHolder().SetCurrentAppletId(
+        static_cast<Service::AM::AppletId>(m_applet_id));
+}
+
+Core::SystemResultStatus EmulationSession::InitializeEmulation(const std::string& filepath,
+                                                               const std::size_t program_index) {
     std::scoped_lock lock(m_mutex);
 
     // Create the render window.
@@ -240,7 +250,8 @@ Core::SystemResultStatus EmulationSession::InitializeEmulation(const std::string
 
     // Load the ROM.
     Service::AM::FrontendAppletParameters params{
-        .applet_id = Service::AM::AppletId::Application,
+        .applet_id = static_cast<Service::AM::AppletId>(m_applet_id),
+        .program_index = static_cast<s32>(program_index),
     };
     m_load_result = m_system.Load(EmulationSession::GetInstance().Window(), filepath, params);
     if (m_load_result != Core::SystemResultStatus::Success) {
@@ -252,6 +263,12 @@ Core::SystemResultStatus EmulationSession::InitializeEmulation(const std::string
     m_system.GetCpuManager().OnGpuReady();
     m_system.RegisterExitCallback([&] { HaltEmulation(); });
 
+    // Register an ExecuteProgram callback such that Core can execute a sub-program
+    m_system.RegisterExecuteProgramCallback([&](std::size_t program_index_) {
+        m_next_program_index = program_index_;
+        EmulationSession::GetInstance().HaltEmulation();
+    });
+
     OnEmulationStarted();
     return Core::SystemResultStatus::Success;
 }
@@ -259,6 +276,11 @@ Core::SystemResultStatus EmulationSession::InitializeEmulation(const std::string
 void EmulationSession::ShutdownEmulation() {
     std::scoped_lock lock(m_mutex);
 
+    if (m_next_program_index != -1) {
+        ChangeProgram(m_next_program_index);
+        m_next_program_index = -1;
+    }
+
     m_is_running = false;
 
     // Unload user input.
@@ -327,6 +349,9 @@ void EmulationSession::RunEmulation() {
             }
         }
     }
+
+    // Reset current applet ID.
+    m_applet_id = static_cast<int>(Service::AM::AppletId::Application);
 }
 
 bool EmulationSession::IsHandheldOnly() {
@@ -406,6 +431,12 @@ void EmulationSession::OnEmulationStopped(Core::SystemResultStatus result) {
                               static_cast<jint>(result));
 }
 
+void EmulationSession::ChangeProgram(std::size_t program_index) {
+    JNIEnv* env = IDCache::GetEnvForThread();
+    env->CallStaticVoidMethod(IDCache::GetNativeLibraryClass(), IDCache::GetOnProgramChanged(),
+                              static_cast<jint>(program_index));
+}
+
 u64 EmulationSession::GetProgramId(JNIEnv* env, jstring jprogramId) {
     auto program_id_string = GetJString(env, jprogramId);
     try {
@@ -415,7 +446,8 @@ u64 EmulationSession::GetProgramId(JNIEnv* env, jstring jprogramId) {
     }
 }
 
-static Core::SystemResultStatus RunEmulation(const std::string& filepath) {
+static Core::SystemResultStatus RunEmulation(const std::string& filepath,
+                                             const size_t program_index = 0) {
     MicroProfileOnThreadCreate("EmuThread");
     SCOPE_EXIT({ MicroProfileShutdown(); });
 
@@ -428,7 +460,7 @@ static Core::SystemResultStatus RunEmulation(const std::string& filepath) {
 
     SCOPE_EXIT({ EmulationSession::GetInstance().ShutdownEmulation(); });
 
-    jconst result = EmulationSession::GetInstance().InitializeEmulation(filepath);
+    jconst result = EmulationSession::GetInstance().InitializeEmulation(filepath, program_index);
     if (result != Core::SystemResultStatus::Success) {
         return result;
     }
@@ -525,6 +557,37 @@ jboolean JNICALL Java_org_yuzu_yuzu_1emu_utils_GpuDriverHelper_supportsCustomDri
 #endif
 }
 
+jobjectArray Java_org_yuzu_yuzu_1emu_utils_GpuDriverHelper_getSystemDriverInfo(
+    JNIEnv* env, jobject j_obj, jobject j_surf, jstring j_hook_lib_dir) {
+    const char* file_redirect_dir_{};
+    int featureFlags{};
+    std::string hook_lib_dir = GetJString(env, j_hook_lib_dir);
+    auto handle = adrenotools_open_libvulkan(RTLD_NOW, featureFlags, nullptr, hook_lib_dir.c_str(),
+                                             nullptr, nullptr, file_redirect_dir_, nullptr);
+    auto driver_library = std::make_shared<Common::DynamicLibrary>(handle);
+    InputCommon::InputSubsystem input_subsystem;
+    auto m_window = std::make_unique<EmuWindow_Android>(
+        &input_subsystem, ANativeWindow_fromSurface(env, j_surf), driver_library);
+
+    Vulkan::vk::InstanceDispatch dld;
+    Vulkan::vk::Instance vk_instance = Vulkan::CreateInstance(
+        *driver_library, dld, VK_API_VERSION_1_1, Core::Frontend::WindowSystemType::Android);
+
+    auto surface = Vulkan::CreateSurface(vk_instance, m_window->GetWindowInfo());
+
+    auto device = Vulkan::CreateDevice(vk_instance, dld, *surface);
+
+    auto driver_version = device.GetDriverVersion();
+    auto version_string =
+        fmt::format("{}.{}.{}", VK_API_VERSION_MAJOR(driver_version),
+                    VK_API_VERSION_MINOR(driver_version), VK_API_VERSION_PATCH(driver_version));
+
+    jobjectArray j_driver_info =
+        env->NewObjectArray(2, IDCache::GetStringClass(), ToJString(env, version_string));
+    env->SetObjectArrayElement(j_driver_info, 1, ToJString(env, device.GetDriverName()));
+    return j_driver_info;
+}
+
 jboolean Java_org_yuzu_yuzu_1emu_NativeLibrary_reloadKeys(JNIEnv* env, jclass clazz) {
     Core::Crypto::KeyManager::Instance().ReloadKeys();
     return static_cast<jboolean>(Core::Crypto::KeyManager::Instance().AreKeysLoaded());
@@ -693,11 +756,11 @@ void Java_org_yuzu_yuzu_1emu_NativeLibrary_logSettings(JNIEnv* env, jobject jobj
     Settings::LogSettings();
 }
 
-void Java_org_yuzu_yuzu_1emu_NativeLibrary_run__Ljava_lang_String_2(JNIEnv* env, jclass clazz,
-                                                                    jstring j_path) {
+void Java_org_yuzu_yuzu_1emu_NativeLibrary_run(JNIEnv* env, jobject jobj, jstring j_path,
+                                               jint j_program_index) {
     const std::string path = GetJString(env, j_path);
 
-    const Core::SystemResultStatus result{RunEmulation(path)};
+    const Core::SystemResultStatus result{RunEmulation(path, j_program_index)};
     if (result != Core::SystemResultStatus::Success) {
         env->CallStaticVoidMethod(IDCache::GetNativeLibraryClass(),
                                   IDCache::GetExitEmulationActivity(), static_cast<int>(result));
@@ -759,8 +822,7 @@ jstring Java_org_yuzu_yuzu_1emu_NativeLibrary_getAppletLaunchPath(JNIEnv* env, j
 
 void Java_org_yuzu_yuzu_1emu_NativeLibrary_setCurrentAppletId(JNIEnv* env, jclass clazz,
                                                               jint jappletId) {
-    EmulationSession::GetInstance().System().GetFrontendAppletHolder().SetCurrentAppletId(
-        static_cast<Service::AM::AppletId>(jappletId));
+    EmulationSession::GetInstance().SetAppletId(jappletId);
 }
 
 void Java_org_yuzu_yuzu_1emu_NativeLibrary_setCabinetMode(JNIEnv* env, jclass clazz,

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

@@ -45,7 +45,9 @@ public:
     const Core::PerfStatsResults& PerfStats();
     void ConfigureFilesystemProvider(const std::string& filepath);
     void InitializeSystem(bool reload);
-    Core::SystemResultStatus InitializeEmulation(const std::string& filepath);
+    void SetAppletId(int applet_id);
+    Core::SystemResultStatus InitializeEmulation(const std::string& filepath,
+                                                 const std::size_t program_index = 0);
 
     bool IsHandheldOnly();
     void SetDeviceType([[maybe_unused]] int index, int type);
@@ -60,6 +62,7 @@ public:
 private:
     static void LoadDiskCacheProgress(VideoCore::LoadCallbackStage stage, int progress, int max);
     static void OnEmulationStopped(Core::SystemResultStatus result);
+    static void ChangeProgram(std::size_t program_index);
 
 private:
     // Window management
@@ -77,6 +80,7 @@ private:
     std::atomic<bool> m_is_paused = false;
     SoftwareKeyboard::AndroidKeyboard* m_software_keyboard{};
     std::unique_ptr<FileSys::ManualContentProvider> m_manual_provider;
+    int m_applet_id{1};
 
     // GPU driver parameters
     std::shared_ptr<Common::DynamicLibrary> m_vulkan_library;
@@ -84,4 +88,7 @@ private:
     // Synchronization
     std::condition_variable_any m_cv;
     mutable std::mutex m_mutex;
+
+    // Program index for next boot
+    std::atomic<s32> m_next_program_index = -1;
 };

src/android/app/src/main/res/layout/fragment_emulation.xml

@@ -34,8 +34,10 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
+                android:focusable="false"
                 android:defaultFocusHighlightEnabled="false"
-                android:clickable="false">
+                android:clickable="false"
+                app:rippleColor="@android:color/transparent">
 
                 <androidx.constraintlayout.widget.ConstraintLayout
                     android:id="@+id/loading_layout"

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

@@ -221,6 +221,7 @@ void AppletManager::InsertApplet(std::shared_ptr<Applet> applet) {
 
 void AppletManager::TerminateAndRemoveApplet(AppletResourceUserId aruid) {
     std::shared_ptr<Applet> applet;
+    bool should_stop = false;
     {
         std::scoped_lock lk{m_lock};
 
@@ -231,10 +232,17 @@ void AppletManager::TerminateAndRemoveApplet(AppletResourceUserId aruid) {
 
         applet = it->second;
         m_applets.erase(it);
+
+        should_stop = m_applets.empty();
     }
 
     // Terminate process.
     applet->process->Terminate();
+
+    // If there were no applets left, stop emulation.
+    if (should_stop) {
+        m_system.Exit();
+    }
 }
 
 void AppletManager::CreateAndInsertByFrontendAppletParameters(

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

@@ -60,13 +60,12 @@ void IDisplayController::GetCallerAppletCaptureImageEx(HLERequestContext& ctx) {
     LOG_WARNING(Service_AM, "(STUBBED) called");
 
     OutputParameters params{};
-    const auto res = applet->system_buffer_manager.WriteApplicationCaptureBuffer(
+    const auto res = applet->system_buffer_manager.WriteAppletCaptureBuffer(
         &params.was_written, &params.fbshare_layer_index);
 
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(res);
-    rb.Push(params.was_written);
-    rb.Push(params.fbshare_layer_index);
+    rb.PushRaw(params);
 }
 
 void IDisplayController::TakeScreenShotOfOwnLayer(HLERequestContext& ctx) {
@@ -80,13 +79,12 @@ void IDisplayController::AcquireLastApplicationCaptureSharedBuffer(HLERequestCon
     LOG_WARNING(Service_AM, "(STUBBED) called");
 
     OutputParameters params{};
-    const auto res = applet->system_buffer_manager.WriteApplicationCaptureBuffer(
+    const auto res = applet->system_buffer_manager.WriteAppletCaptureBuffer(
         &params.was_written, &params.fbshare_layer_index);
 
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(res);
-    rb.Push(params.was_written);
-    rb.Push(params.fbshare_layer_index);
+    rb.PushRaw(params);
 }
 
 void IDisplayController::ReleaseLastApplicationCaptureSharedBuffer(HLERequestContext& ctx) {
@@ -100,13 +98,12 @@ void IDisplayController::AcquireLastForegroundCaptureSharedBuffer(HLERequestCont
     LOG_WARNING(Service_AM, "(STUBBED) called");
 
     OutputParameters params{};
-    const auto res = applet->system_buffer_manager.WriteApplicationCaptureBuffer(
+    const auto res = applet->system_buffer_manager.WriteAppletCaptureBuffer(
         &params.was_written, &params.fbshare_layer_index);
 
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(res);
-    rb.Push(params.was_written);
-    rb.Push(params.fbshare_layer_index);
+    rb.PushRaw(params);
 }
 
 void IDisplayController::ReleaseLastForegroundCaptureSharedBuffer(HLERequestContext& ctx) {
@@ -120,13 +117,12 @@ void IDisplayController::AcquireCallerAppletCaptureSharedBuffer(HLERequestContex
     LOG_WARNING(Service_AM, "(STUBBED) called");
 
     OutputParameters params{};
-    const auto res = applet->system_buffer_manager.WriteApplicationCaptureBuffer(
+    const auto res = applet->system_buffer_manager.WriteAppletCaptureBuffer(
         &params.was_written, &params.fbshare_layer_index);
 
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(res);
-    rb.Push(params.was_written);
-    rb.Push(params.fbshare_layer_index);
+    rb.PushRaw(params);
 }
 
 void IDisplayController::ReleaseCallerAppletCaptureSharedBuffer(HLERequestContext& ctx) {

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

@@ -115,15 +115,10 @@ AppletProgramId AppletIdToProgramId(AppletId applet_id) {
     return std::make_shared<ILibraryAppletAccessor>(system, broker, applet);
 }
 
-std::shared_ptr<ILibraryAppletAccessor> CreateFrontendApplet(Core::System& system,
-                                                             std::shared_ptr<Applet> caller_applet,
-                                                             AppletId applet_id,
-                                                             LibraryAppletMode mode) {
+[[maybe_unused]] std::shared_ptr<ILibraryAppletAccessor> CreateFrontendApplet(
+    Core::System& system, std::shared_ptr<Applet> caller_applet, AppletId applet_id,
+    LibraryAppletMode mode) {
     const auto program_id = static_cast<u64>(AppletIdToProgramId(applet_id));
-    if (program_id == 0) {
-        // Unknown applet
-        return {};
-    }
 
     auto process = std::make_unique<Process>(system);
     auto applet = std::make_shared<Applet>(system, std::move(process));

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

@@ -60,8 +60,8 @@ void SystemBufferManager::SetWindowVisibility(bool visible) {
     }
 }
 
-Result SystemBufferManager::WriteApplicationCaptureBuffer(bool* out_was_written,
-                                                          s32* out_fbshare_layer_index) {
+Result SystemBufferManager::WriteAppletCaptureBuffer(bool* out_was_written,
+                                                     s32* out_fbshare_layer_index) {
     // TODO
     R_SUCCEED();
 }

src/core/hle/service/am/system_buffer_manager.h

@@ -37,7 +37,7 @@ public:
 
     void SetWindowVisibility(bool visible);
 
-    Result WriteApplicationCaptureBuffer(bool* out_was_written, s32* out_fbshare_layer_index);
+    Result WriteAppletCaptureBuffer(bool* out_was_written, s32* out_fbshare_layer_index);
 
 private:
     Kernel::KProcess* m_process{};

src/hid_core/resources/abstracted_pad/abstract_properties_handler.cpp

@@ -137,7 +137,7 @@ void NpadAbstractPropertiesHandler::UpdateAllDeviceProperties() {
     const auto npad_index = NpadIdTypeToIndex(npad_id_type);
     for (std::size_t aruid_index = 0; aruid_index < AruidIndexMax; aruid_index++) {
         auto* data = applet_resource_holder->applet_resource->GetAruidData(aruid_index);
-        if (!data->flag.is_assigned) {
+        if (data == nullptr || !data->flag.is_assigned) {
             continue;
         }
         auto& npad_entry = data->shared_memory_format->npad.npad_entry[npad_index];