Android #87

core_timing: Replace queue with a fibonacci heap

CMakeLists.txt

@@ -333,6 +333,7 @@ find_package(LLVM 17 MODULE COMPONENTS Demangle)
 find_package(lz4 REQUIRED)
 find_package(nlohmann_json 3.8 REQUIRED)
 find_package(Opus 1.3 MODULE)
+find_package(RenderDoc MODULE)
 find_package(VulkanMemoryAllocator CONFIG)
 find_package(ZLIB 1.2 REQUIRED)
 find_package(zstd 1.5 REQUIRED)

CMakeModules/FindRenderDoc.cmake

@@ -0,0 +1,19 @@
+# SPDX-FileCopyrightText: 2023 Alexandre Bouvier <contact@amb.tf>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+find_path(RenderDoc_INCLUDE_DIR renderdoc_app.h)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(RenderDoc
+    REQUIRED_VARS RenderDoc_INCLUDE_DIR
+)
+
+if (RenderDoc_FOUND AND NOT TARGET RenderDoc::API)
+    add_library(RenderDoc::API INTERFACE IMPORTED)
+    set_target_properties(RenderDoc::API PROPERTIES
+        INTERFACE_INCLUDE_DIRECTORIES "${RenderDoc_INCLUDE_DIR}"
+    )
+endif()
+
+mark_as_advanced(RenderDoc_INCLUDE_DIR)

README.md

@@ -1,3 +1,11 @@
+| Pull Request | Commit | Title | Author | Merged? |
+|----|----|----|----|----|
+
+
+End of merge log. You can find the original README.md below the break.
+
+-----
+
 <!--
 SPDX-FileCopyrightText: 2018 yuzu Emulator Project
 SPDX-License-Identifier: GPL-2.0-or-later

externals/CMakeLists.txt

@@ -174,8 +174,11 @@ target_include_directories(stb PUBLIC ./stb)
 add_library(bc_decoder bc_decoder/bc_decoder.cpp)
 target_include_directories(bc_decoder PUBLIC ./bc_decoder)
 
-add_library(renderdoc INTERFACE)
-target_include_directories(renderdoc SYSTEM INTERFACE ./renderdoc)
+if (NOT TARGET RenderDoc::API)
+    add_library(renderdoc INTERFACE)
+    target_include_directories(renderdoc SYSTEM INTERFACE ./renderdoc)
+    add_library(RenderDoc::API ALIAS renderdoc)
+endif()
 
 if (ANDROID)
    if (ARCHITECTURE_arm64)

src/android/.gitignore

@@ -63,3 +63,6 @@ fastlane/Preview.html
 fastlane/screenshots
 fastlane/test_output
 fastlane/readme.md
+
+# Autogenerated library for vulkan validation layers
+libVkLayer_khronos_validation.so

src/android/app/build.gradle.kts

@@ -77,13 +77,30 @@ android {
         buildConfigField("String", "BRANCH", "\"${getBranch()}\"")
     }
 
+    val keystoreFile = System.getenv("ANDROID_KEYSTORE_FILE")
+    if (keystoreFile != null) {
+        signingConfigs {
+            create("release") {
+                storeFile = file(keystoreFile)
+                storePassword = System.getenv("ANDROID_KEYSTORE_PASS")
+                keyAlias = System.getenv("ANDROID_KEY_ALIAS")
+                keyPassword = System.getenv("ANDROID_KEYSTORE_PASS")
+            }
+        }
+    }
+
     // Define build types, which are orthogonal to product flavors.
     buildTypes {
 
         // Signed by release key, allowing for upload to Play Store.
         release {
+            signingConfig = if (keystoreFile != null) {
+                signingConfigs.getByName("release")
+            } else {
+                signingConfigs.getByName("debug")
+            }
+
             resValue("string", "app_name_suffixed", "yuzu")
-            signingConfig = signingConfigs.getByName("debug")
             isMinifyEnabled = true
             isDebuggable = false
             proguardFiles(
@@ -197,7 +214,7 @@ dependencies {
     implementation("androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.1")
     implementation("io.coil-kt:coil:2.2.2")
     implementation("androidx.core:core-splashscreen:1.0.1")
-    implementation("androidx.window:window:1.1.0")
+    implementation("androidx.window:window:1.2.0-beta03")
     implementation("org.ini4j:ini4j:0.5.4")
     implementation("androidx.constraintlayout:constraintlayout:2.1.4")
     implementation("androidx.swiperefreshlayout:swiperefreshlayout:1.1.0")

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

@@ -247,7 +247,12 @@ object NativeLibrary {
 
     external fun setAppDirectory(directory: String)
 
-    external fun installFileToNand(filename: String): Int
+    /**
+     * Installs a nsp or xci file to nand
+     * @param filename String representation of file uri
+     * @param extension Lowercase string representation of file extension without "."
+     */
+    external fun installFileToNand(filename: String, extension: String): Int
 
     external fun initializeGpuDriver(
         hookLibDir: String?,
@@ -511,6 +516,11 @@ object NativeLibrary {
      */
     external fun submitInlineKeyboardInput(key_code: Int)
 
+    /**
+     * Creates a generic user directory if it doesn't exist already
+     */
+    external fun initializeEmptyUserDirectory()
+
     /**
      * Button type for use in onTouchEvent
      */

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

@@ -3,6 +3,7 @@
 
 package org.yuzu.yuzu_emu.activities
 
+import android.annotation.SuppressLint
 import android.app.Activity
 import android.app.PendingIntent
 import android.app.PictureInPictureParams
@@ -397,6 +398,7 @@ class EmulationActivity : AppCompatActivity(), SensorEventListener {
         }
     }
 
+    @SuppressLint("UnspecifiedRegisterReceiverFlag")
     override fun onPictureInPictureModeChanged(
         isInPictureInPictureMode: Boolean,
         newConfig: Configuration
@@ -409,7 +411,11 @@ class EmulationActivity : AppCompatActivity(), SensorEventListener {
                 addAction(actionMute)
                 addAction(actionUnmute)
             }.also {
-                registerReceiver(pictureInPictureReceiver, it)
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                    registerReceiver(pictureInPictureReceiver, it, RECEIVER_EXPORTED)
+                } else {
+                    registerReceiver(pictureInPictureReceiver, it)
+                }
             }
         } else {
             try {

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/HomeSettingAdapter.kt

@@ -49,6 +49,7 @@ class HomeSettingAdapter(
             holder.option.onClick.invoke()
         } else {
             MessageDialogFragment.newInstance(
+                activity,
                 titleId = holder.option.disabledTitleId,
                 descriptionId = holder.option.disabledMessageId
             ).show(activity.supportFragmentManager, MessageDialogFragment.TAG)

src/android/app/src/main/java/org/yuzu/yuzu_emu/adapters/InstallableAdapter.kt

@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.adapters
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import org.yuzu.yuzu_emu.databinding.CardInstallableBinding
+import org.yuzu.yuzu_emu.model.Installable
+
+class InstallableAdapter(private val installables: List<Installable>) :
+    RecyclerView.Adapter<InstallableAdapter.InstallableViewHolder>() {
+    override fun onCreateViewHolder(
+        parent: ViewGroup,
+        viewType: Int
+    ): InstallableAdapter.InstallableViewHolder {
+        val binding =
+            CardInstallableBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+        return InstallableViewHolder(binding)
+    }
+
+    override fun getItemCount(): Int = installables.size
+
+    override fun onBindViewHolder(holder: InstallableAdapter.InstallableViewHolder, position: Int) =
+        holder.bind(installables[position])
+
+    inner class InstallableViewHolder(val binding: CardInstallableBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+        lateinit var installable: Installable
+
+        fun bind(installable: Installable) {
+            this.installable = installable
+
+            binding.title.setText(installable.titleId)
+            binding.description.setText(installable.descriptionId)
+
+            if (installable.install != null) {
+                binding.buttonInstall.visibility = View.VISIBLE
+                binding.buttonInstall.setOnClickListener { installable.install.invoke() }
+            }
+            if (installable.export != null) {
+                binding.buttonExport.visibility = View.VISIBLE
+                binding.buttonExport.setOnClickListener { installable.export.invoke() }
+            }
+        }
+    }
+}

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

@@ -21,6 +21,7 @@ import androidx.navigation.navArgs
 import com.google.android.material.color.MaterialColors
 import kotlinx.coroutines.flow.collectLatest
 import kotlinx.coroutines.launch
+import org.yuzu.yuzu_emu.NativeLibrary
 import java.io.IOException
 import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.databinding.ActivitySettingsBinding
@@ -168,7 +169,7 @@ class SettingsActivity : AppCompatActivity() {
         if (!settingsFile.delete()) {
             throw IOException("Failed to delete $settingsFile")
         }
-        Settings.settingsList.forEach { it.reset() }
+        NativeLibrary.reloadSettings()
 
         Toast.makeText(
             applicationContext,
@@ -181,12 +182,14 @@ class SettingsActivity : AppCompatActivity() {
     private fun setInsets() {
         ViewCompat.setOnApplyWindowInsetsListener(
             binding.navigationBarShade
-        ) { view: View, windowInsets: WindowInsetsCompat ->
+        ) { _: View, windowInsets: WindowInsetsCompat ->
             val barInsets = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars())
 
-            val mlpShade = view.layoutParams as MarginLayoutParams
-            mlpShade.height = barInsets.bottom
-            view.layoutParams = mlpShade
+            // The only situation where we care to have a nav bar shade is when it's at the bottom
+            // of the screen where scrolling list elements can go behind it.
+            val mlpNavShade = binding.navigationBarShade.layoutParams as MarginLayoutParams
+            mlpNavShade.height = barInsets.bottom
+            binding.navigationBarShade.layoutParams = mlpNavShade
 
             windowInsets
         }

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

@@ -15,9 +15,9 @@ import android.net.Uri
 import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
-import android.util.Rational
 import android.view.*
 import android.widget.TextView
+import android.widget.Toast
 import androidx.activity.OnBackPressedCallback
 import androidx.appcompat.widget.PopupMenu
 import androidx.core.content.res.ResourcesCompat
@@ -54,6 +54,7 @@ import org.yuzu.yuzu_emu.model.Game
 import org.yuzu.yuzu_emu.model.EmulationViewModel
 import org.yuzu.yuzu_emu.overlay.InputOverlay
 import org.yuzu.yuzu_emu.utils.*
+import java.lang.NullPointerException
 
 class EmulationFragment : Fragment(), SurfaceHolder.Callback {
     private lateinit var preferences: SharedPreferences
@@ -105,10 +106,21 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
                 null
             }
         }
-        game = if (args.game != null) {
-            args.game!!
-        } else {
-            intentGame ?: error("[EmulationFragment] No bootable game present!")
+
+        try {
+            game = if (args.game != null) {
+                args.game!!
+            } else {
+                intentGame!!
+            }
+        } catch (e: NullPointerException) {
+            Toast.makeText(
+                requireContext(),
+                R.string.no_game_present,
+                Toast.LENGTH_SHORT
+            ).show()
+            requireActivity().finish()
+            return
         }
 
         // So this fragment doesn't restart on configuration changes; i.e. rotation.
@@ -132,6 +144,11 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
     // This is using the correct scope, lint is just acting up
     @SuppressLint("UnsafeRepeatOnLifecycleDetector")
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        if (requireActivity().isFinishing) {
+            return
+        }
+
         binding.surfaceEmulation.holder.addCallback(this)
         binding.showFpsText.setTextColor(Color.YELLOW)
         binding.doneControlConfig.setOnClickListener { stopConfiguringControls() }
@@ -287,24 +304,23 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
 
     override fun onConfigurationChanged(newConfig: Configuration) {
         super.onConfigurationChanged(newConfig)
+        if (_binding == null) {
+            return
+        }
+
+        updateScreenLayout()
         if (emulationActivity?.isInPictureInPictureMode == true) {
             if (binding.drawerLayout.isOpen) {
                 binding.drawerLayout.close()
             }
             if (EmulationMenuSettings.showOverlay) {
-                binding.surfaceInputOverlay.post {
-                    binding.surfaceInputOverlay.visibility = View.VISIBLE
-                }
+                binding.surfaceInputOverlay.visibility = View.INVISIBLE
             }
         } else {
             if (EmulationMenuSettings.showOverlay && emulationViewModel.emulationStarted.value) {
-                binding.surfaceInputOverlay.post {
-                    binding.surfaceInputOverlay.visibility = View.VISIBLE
-                }
+                binding.surfaceInputOverlay.visibility = View.VISIBLE
             } else {
-                binding.surfaceInputOverlay.post {
-                    binding.surfaceInputOverlay.visibility = View.INVISIBLE
-                }
+                binding.surfaceInputOverlay.visibility = View.INVISIBLE
             }
             if (!isInFoldableLayout) {
                 if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT) {
@@ -328,7 +344,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
     }
 
     override fun onPause() {
-        if (emulationState.isRunning) {
+        if (emulationState.isRunning && emulationActivity?.isInPictureInPictureMode != true) {
             emulationState.pause()
         }
         super.onPause()
@@ -394,16 +410,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
     }
 
     private fun updateScreenLayout() {
-        binding.surfaceEmulation.setAspectRatio(
-            when (IntSetting.RENDERER_ASPECT_RATIO.int) {
-                0 -> Rational(16, 9)
-                1 -> Rational(4, 3)
-                2 -> Rational(21, 9)
-                3 -> Rational(16, 10)
-                4 -> null // Stretch
-                else -> Rational(16, 9)
-            }
-        )
+        binding.surfaceEmulation.setAspectRatio(null)
         emulationActivity?.buildPictureInPictureParams()
         updateOrientation()
     }
@@ -693,7 +700,6 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
     private class EmulationState(private val gamePath: String) {
         private var state: State
         private var surface: Surface? = null
-        private var runWhenSurfaceIsValid = false
 
         init {
             // Starting state is stopped.
@@ -751,8 +757,6 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
             // If the surface is set, run now. Otherwise, wait for it to get set.
             if (surface != null) {
                 runWithValidSurface()
-            } else {
-                runWhenSurfaceIsValid = true
             }
         }
 
@@ -760,7 +764,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
         @Synchronized
         fun newSurface(surface: Surface?) {
             this.surface = surface
-            if (runWhenSurfaceIsValid) {
+            if (this.surface != null) {
                 runWithValidSurface()
             }
         }
@@ -788,10 +792,9 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
         }
 
         private fun runWithValidSurface() {
-            runWhenSurfaceIsValid = false
+            NativeLibrary.surfaceChanged(surface)
             when (state) {
                 State.STOPPED -> {
-                    NativeLibrary.surfaceChanged(surface)
                     val emulationThread = Thread({
                         Log.debug("[EmulationFragment] Starting emulation thread.")
                         NativeLibrary.run(gamePath)
@@ -801,7 +804,6 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
 
                 State.PAUSED -> {
                     Log.debug("[EmulationFragment] Resuming emulation.")
-                    NativeLibrary.surfaceChanged(surface)
                     NativeLibrary.unpauseEmulation()
                 }
 

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

@@ -118,18 +118,13 @@ class HomeSettingsFragment : Fragment() {
             )
             add(
                 HomeSetting(
-                    R.string.install_amiibo_keys,
-                    R.string.install_amiibo_keys_description,
-                    R.drawable.ic_nfc,
-                    { mainActivity.getAmiiboKey.launch(arrayOf("*/*")) }
-                )
-            )
-            add(
-                HomeSetting(
-                    R.string.install_game_content,
-                    R.string.install_game_content_description,
-                    R.drawable.ic_system_update_alt,
-                    { mainActivity.installGameUpdate.launch(arrayOf("*/*")) }
+                    R.string.manage_yuzu_data,
+                    R.string.manage_yuzu_data_description,
+                    R.drawable.ic_install,
+                    {
+                        binding.root.findNavController()
+                            .navigate(R.id.action_homeSettingsFragment_to_installableFragment)
+                    }
                 )
             )
             add(
@@ -148,35 +143,6 @@ class HomeSettingsFragment : Fragment() {
                     homeViewModel.gamesDir
                 )
             )
-            add(
-                HomeSetting(
-                    R.string.manage_save_data,
-                    R.string.import_export_saves_description,
-                    R.drawable.ic_save,
-                    {
-                        ImportExportSavesFragment().show(
-                            parentFragmentManager,
-                            ImportExportSavesFragment.TAG
-                        )
-                    }
-                )
-            )
-            add(
-                HomeSetting(
-                    R.string.install_prod_keys,
-                    R.string.install_prod_keys_description,
-                    R.drawable.ic_unlock,
-                    { mainActivity.getProdKey.launch(arrayOf("*/*")) }
-                )
-            )
-            add(
-                HomeSetting(
-                    R.string.install_firmware,
-                    R.string.install_firmware_description,
-                    R.drawable.ic_firmware,
-                    { mainActivity.getFirmware.launch(arrayOf("application/zip")) }
-                )
-            )
             add(
                 HomeSetting(
                     R.string.share_log,

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

@@ -1,213 +0,0 @@
-// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-package org.yuzu.yuzu_emu.fragments
-
-import android.app.Dialog
-import android.content.Intent
-import android.net.Uri
-import android.os.Bundle
-import android.provider.DocumentsContract
-import android.widget.Toast
-import androidx.activity.result.ActivityResultLauncher
-import androidx.activity.result.contract.ActivityResultContracts
-import androidx.appcompat.app.AppCompatActivity
-import androidx.documentfile.provider.DocumentFile
-import androidx.fragment.app.DialogFragment
-import com.google.android.material.dialog.MaterialAlertDialogBuilder
-import java.io.BufferedOutputStream
-import java.io.File
-import java.io.FileOutputStream
-import java.io.FilenameFilter
-import java.time.LocalDateTime
-import java.time.format.DateTimeFormatter
-import java.util.zip.ZipEntry
-import java.util.zip.ZipOutputStream
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
-import org.yuzu.yuzu_emu.R
-import org.yuzu.yuzu_emu.YuzuApplication
-import org.yuzu.yuzu_emu.features.DocumentProvider
-import org.yuzu.yuzu_emu.getPublicFilesDir
-import org.yuzu.yuzu_emu.utils.FileUtil
-
-class ImportExportSavesFragment : DialogFragment() {
-    private val context = YuzuApplication.appContext
-    private val savesFolder =
-        "${context.getPublicFilesDir().canonicalPath}/nand/user/save/0000000000000000"
-
-    // Get first subfolder in saves folder (should be the user folder)
-    private val savesFolderRoot = File(savesFolder).listFiles()?.firstOrNull()?.canonicalPath ?: ""
-    private var lastZipCreated: File? = null
-
-    private lateinit var startForResultExportSave: ActivityResultLauncher<Intent>
-    private lateinit var documentPicker: ActivityResultLauncher<Array<String>>
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        val activity = requireActivity() as AppCompatActivity
-
-        val activityResultRegistry = requireActivity().activityResultRegistry
-        startForResultExportSave = activityResultRegistry.register(
-            "startForResultExportSaveKey",
-            ActivityResultContracts.StartActivityForResult()
-        ) {
-            File(context.getPublicFilesDir().canonicalPath, "temp").deleteRecursively()
-        }
-        documentPicker = activityResultRegistry.register(
-            "documentPickerKey",
-            ActivityResultContracts.OpenDocument()
-        ) {
-            it?.let { uri -> importSave(uri, activity) }
-        }
-    }
-
-    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
-        return if (savesFolderRoot == "") {
-            MaterialAlertDialogBuilder(requireContext())
-                .setTitle(R.string.manage_save_data)
-                .setMessage(R.string.import_export_saves_no_profile)
-                .setPositiveButton(android.R.string.ok, null)
-                .show()
-        } else {
-            MaterialAlertDialogBuilder(requireContext())
-                .setTitle(R.string.manage_save_data)
-                .setMessage(R.string.manage_save_data_description)
-                .setNegativeButton(R.string.export_saves) { _, _ ->
-                    exportSave()
-                }
-                .setPositiveButton(R.string.import_saves) { _, _ ->
-                    documentPicker.launch(arrayOf("application/zip"))
-                }
-                .setNeutralButton(android.R.string.cancel, null)
-                .show()
-        }
-    }
-
-    /**
-     * Zips the save files located in the given folder path and creates a new zip file with the current date and time.
-     * @return true if the zip file is successfully created, false otherwise.
-     */
-    private fun zipSave(): Boolean {
-        try {
-            val tempFolder = File(requireContext().getPublicFilesDir().canonicalPath, "temp")
-            tempFolder.mkdirs()
-            val saveFolder = File(savesFolderRoot)
-            val outputZipFile = File(
-                tempFolder,
-                "yuzu saves - ${
-                LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm"))
-                }.zip"
-            )
-            outputZipFile.createNewFile()
-            ZipOutputStream(BufferedOutputStream(FileOutputStream(outputZipFile))).use { zos ->
-                saveFolder.walkTopDown().forEach { file ->
-                    val zipFileName =
-                        file.absolutePath.removePrefix(savesFolderRoot).removePrefix("/")
-                    if (zipFileName == "") {
-                        return@forEach
-                    }
-                    val entry = ZipEntry("$zipFileName${(if (file.isDirectory) "/" else "")}")
-                    zos.putNextEntry(entry)
-                    if (file.isFile) {
-                        file.inputStream().use { fis -> fis.copyTo(zos) }
-                    }
-                }
-            }
-            lastZipCreated = outputZipFile
-        } catch (e: Exception) {
-            return false
-        }
-        return true
-    }
-
-    /**
-     * Exports the save file located in the given folder path by creating a zip file and sharing it via intent.
-     */
-    private fun exportSave() {
-        CoroutineScope(Dispatchers.IO).launch {
-            val wasZipCreated = zipSave()
-            val lastZipFile = lastZipCreated
-            if (!wasZipCreated || lastZipFile == null) {
-                withContext(Dispatchers.Main) {
-                    Toast.makeText(context, "Failed to export save", Toast.LENGTH_LONG).show()
-                }
-                return@launch
-            }
-
-            withContext(Dispatchers.Main) {
-                val file = DocumentFile.fromSingleUri(
-                    context,
-                    DocumentsContract.buildDocumentUri(
-                        DocumentProvider.AUTHORITY,
-                        "${DocumentProvider.ROOT_ID}/temp/${lastZipFile.name}"
-                    )
-                )!!
-                val intent = Intent(Intent.ACTION_SEND)
-                    .setDataAndType(file.uri, "application/zip")
-                    .addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
-                    .putExtra(Intent.EXTRA_STREAM, file.uri)
-                startForResultExportSave.launch(Intent.createChooser(intent, "Share save file"))
-            }
-        }
-    }
-
-    /**
-     * Imports the save files contained in the zip file, and replaces any existing ones with the new save file.
-     * @param zipUri The Uri of the zip file containing the save file(s) to import.
-     */
-    private fun importSave(zipUri: Uri, activity: AppCompatActivity) {
-        val inputZip = context.contentResolver.openInputStream(zipUri)
-        // A zip needs to have at least one subfolder named after a TitleId in order to be considered valid.
-        var validZip = false
-        val savesFolder = File(savesFolderRoot)
-        val cacheSaveDir = File("${context.cacheDir.path}/saves/")
-        cacheSaveDir.mkdir()
-
-        if (inputZip == null) {
-            Toast.makeText(context, context.getString(R.string.fatal_error), Toast.LENGTH_LONG)
-                .show()
-            return
-        }
-
-        val filterTitleId =
-            FilenameFilter { _, dirName -> dirName.matches(Regex("^0100[\\dA-Fa-f]{12}$")) }
-
-        try {
-            CoroutineScope(Dispatchers.IO).launch {
-                FileUtil.unzip(inputZip, cacheSaveDir)
-                cacheSaveDir.list(filterTitleId)?.forEach { savePath ->
-                    File(savesFolder, savePath).deleteRecursively()
-                    File(cacheSaveDir, savePath).copyRecursively(File(savesFolder, savePath), true)
-                    validZip = true
-                }
-
-                withContext(Dispatchers.Main) {
-                    if (!validZip) {
-                        MessageDialogFragment.newInstance(
-                            titleId = R.string.save_file_invalid_zip_structure,
-                            descriptionId = R.string.save_file_invalid_zip_structure_description
-                        ).show(activity.supportFragmentManager, MessageDialogFragment.TAG)
-                        return@withContext
-                    }
-                    Toast.makeText(
-                        context,
-                        context.getString(R.string.save_file_imported_success),
-                        Toast.LENGTH_LONG
-                    ).show()
-                }
-
-                cacheSaveDir.deleteRecursively()
-            }
-        } catch (e: Exception) {
-            Toast.makeText(context, context.getString(R.string.fatal_error), Toast.LENGTH_LONG)
-                .show()
-        }
-    }
-
-    companion object {
-        const val TAG = "ImportExportSavesFragment"
-    }
-}

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

@@ -9,6 +9,7 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Toast
+import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import androidx.fragment.app.DialogFragment
 import androidx.fragment.app.activityViewModels
@@ -18,6 +19,7 @@ import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.repeatOnLifecycle
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import kotlinx.coroutines.launch
+import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.databinding.DialogProgressBarBinding
 import org.yuzu.yuzu_emu.model.TaskViewModel
 
@@ -28,19 +30,25 @@ class IndeterminateProgressDialogFragment : DialogFragment() {
 
     override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
         val titleId = requireArguments().getInt(TITLE)
+        val cancellable = requireArguments().getBoolean(CANCELLABLE)
 
         binding = DialogProgressBarBinding.inflate(layoutInflater)
         binding.progressBar.isIndeterminate = true
         val dialog = MaterialAlertDialogBuilder(requireContext())
             .setTitle(titleId)
             .setView(binding.root)
-            .create()
-        dialog.setCanceledOnTouchOutside(false)
+
+        if (cancellable) {
+            dialog.setNegativeButton(android.R.string.cancel, null)
+        }
+
+        val alertDialog = dialog.create()
+        alertDialog.setCanceledOnTouchOutside(false)
 
         if (!taskViewModel.isRunning.value) {
             taskViewModel.runTask()
         }
-        return dialog
+        return alertDialog
     }
 
     override fun onCreateView(
@@ -53,24 +61,50 @@ class IndeterminateProgressDialogFragment : DialogFragment() {
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        viewLifecycleOwner.lifecycleScope.launch {
-            repeatOnLifecycle(Lifecycle.State.CREATED) {
-                taskViewModel.isComplete.collect {
-                    if (it) {
-                        dismiss()
-                        when (val result = taskViewModel.result.value) {
-                            is String -> Toast.makeText(requireContext(), result, Toast.LENGTH_LONG)
-                                .show()
+        viewLifecycleOwner.lifecycleScope.apply {
+            launch {
+                repeatOnLifecycle(Lifecycle.State.CREATED) {
+                    taskViewModel.isComplete.collect {
+                        if (it) {
+                            dismiss()
+                            when (val result = taskViewModel.result.value) {
+                                is String -> Toast.makeText(
+                                    requireContext(),
+                                    result,
+                                    Toast.LENGTH_LONG
+                                ).show()
 
-                            is MessageDialogFragment -> result.show(
-                                requireActivity().supportFragmentManager,
-                                MessageDialogFragment.TAG
-                            )
+                                is MessageDialogFragment -> result.show(
+                                    requireActivity().supportFragmentManager,
+                                    MessageDialogFragment.TAG
+                                )
+                            }
+                            taskViewModel.clear()
                         }
-                        taskViewModel.clear()
                     }
                 }
             }
+            launch {
+                repeatOnLifecycle(Lifecycle.State.CREATED) {
+                    taskViewModel.cancelled.collect {
+                        if (it) {
+                            dialog?.setTitle(R.string.cancelling)
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    // By default, the ProgressDialog will immediately dismiss itself upon a button being pressed.
+    // Setting the OnClickListener again after the dialog is shown overrides this behavior.
+    override fun onResume() {
+        super.onResume()
+        val alertDialog = dialog as AlertDialog
+        val negativeButton = alertDialog.getButton(Dialog.BUTTON_NEGATIVE)
+        negativeButton.setOnClickListener {
+            alertDialog.setTitle(getString(R.string.cancelling))
+            taskViewModel.setCancelled(true)
         }
     }
 
@@ -78,16 +112,19 @@ class IndeterminateProgressDialogFragment : DialogFragment() {
         const val TAG = "IndeterminateProgressDialogFragment"
 
         private const val TITLE = "Title"
+        private const val CANCELLABLE = "Cancellable"
 
         fun newInstance(
             activity: AppCompatActivity,
             titleId: Int,
+            cancellable: Boolean = false,
             task: () -> Any
         ): IndeterminateProgressDialogFragment {
             val dialog = IndeterminateProgressDialogFragment()
             val args = Bundle()
             ViewModelProvider(activity)[TaskViewModel::class.java].task = task
             args.putInt(TITLE, titleId)
+            args.putBoolean(CANCELLABLE, cancellable)
             dialog.arguments = args
             return dialog
         }

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

@@ -0,0 +1,138 @@
+// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.core.view.updatePadding
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.navigation.findNavController
+import androidx.recyclerview.widget.GridLayoutManager
+import com.google.android.material.transition.MaterialSharedAxis
+import org.yuzu.yuzu_emu.R
+import org.yuzu.yuzu_emu.adapters.InstallableAdapter
+import org.yuzu.yuzu_emu.databinding.FragmentInstallablesBinding
+import org.yuzu.yuzu_emu.model.HomeViewModel
+import org.yuzu.yuzu_emu.model.Installable
+import org.yuzu.yuzu_emu.ui.main.MainActivity
+
+class InstallableFragment : Fragment() {
+    private var _binding: FragmentInstallablesBinding? = null
+    private val binding get() = _binding!!
+
+    private val homeViewModel: HomeViewModel by activityViewModels()
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enterTransition = MaterialSharedAxis(MaterialSharedAxis.X, true)
+        returnTransition = MaterialSharedAxis(MaterialSharedAxis.X, false)
+        reenterTransition = MaterialSharedAxis(MaterialSharedAxis.X, false)
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        _binding = FragmentInstallablesBinding.inflate(layoutInflater)
+        return binding.root
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        val mainActivity = requireActivity() as MainActivity
+
+        homeViewModel.setNavigationVisibility(visible = false, animated = true)
+        homeViewModel.setStatusBarShadeVisibility(visible = false)
+
+        binding.toolbarInstallables.setNavigationOnClickListener {
+            binding.root.findNavController().popBackStack()
+        }
+
+        val installables = listOf(
+            Installable(
+                R.string.user_data,
+                R.string.user_data_description,
+                install = { mainActivity.importUserData.launch(arrayOf("application/zip")) },
+                export = { mainActivity.exportUserData.launch("export.zip") }
+            ),
+            Installable(
+                R.string.install_game_content,
+                R.string.install_game_content_description,
+                install = { mainActivity.installGameUpdate.launch(arrayOf("*/*")) }
+            ),
+            Installable(
+                R.string.install_firmware,
+                R.string.install_firmware_description,
+                install = { mainActivity.getFirmware.launch(arrayOf("application/zip")) }
+            ),
+            if (mainActivity.savesFolderRoot != "") {
+                Installable(
+                    R.string.manage_save_data,
+                    R.string.import_export_saves_description,
+                    install = { mainActivity.importSaves.launch(arrayOf("application/zip")) },
+                    export = { mainActivity.exportSave() }
+                )
+            } else {
+                Installable(
+                    R.string.manage_save_data,
+                    R.string.import_export_saves_description,
+                    install = { mainActivity.importSaves.launch(arrayOf("application/zip")) }
+                )
+            },
+            Installable(
+                R.string.install_prod_keys,
+                R.string.install_prod_keys_description,
+                install = { mainActivity.getProdKey.launch(arrayOf("*/*")) }
+            ),
+            Installable(
+                R.string.install_amiibo_keys,
+                R.string.install_amiibo_keys_description,
+                install = { mainActivity.getAmiiboKey.launch(arrayOf("*/*")) }
+            )
+        )
+
+        binding.listInstallables.apply {
+            layoutManager = GridLayoutManager(
+                requireContext(),
+                resources.getInteger(R.integer.grid_columns)
+            )
+            adapter = InstallableAdapter(installables)
+        }
+
+        setInsets()
+    }
+
+    private fun setInsets() =
+        ViewCompat.setOnApplyWindowInsetsListener(
+            binding.root
+        ) { _: View, windowInsets: WindowInsetsCompat ->
+            val barInsets = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars())
+            val cutoutInsets = windowInsets.getInsets(WindowInsetsCompat.Type.displayCutout())
+
+            val leftInsets = barInsets.left + cutoutInsets.left
+            val rightInsets = barInsets.right + cutoutInsets.right
+
+            val mlpAppBar = binding.toolbarInstallables.layoutParams as ViewGroup.MarginLayoutParams
+            mlpAppBar.leftMargin = leftInsets
+            mlpAppBar.rightMargin = rightInsets
+            binding.toolbarInstallables.layoutParams = mlpAppBar
+
+            val mlpScrollAbout =
+                binding.listInstallables.layoutParams as ViewGroup.MarginLayoutParams
+            mlpScrollAbout.leftMargin = leftInsets
+            mlpScrollAbout.rightMargin = rightInsets
+            binding.listInstallables.layoutParams = mlpScrollAbout
+
+            binding.listInstallables.updatePadding(bottom = barInsets.bottom)
+
+            windowInsets
+        }
+}

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

@@ -4,14 +4,21 @@
 package org.yuzu.yuzu_emu.fragments
 
 import android.app.Dialog
+import android.content.DialogInterface
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
 import androidx.fragment.app.DialogFragment
+import androidx.fragment.app.FragmentActivity
+import androidx.fragment.app.activityViewModels
+import androidx.lifecycle.ViewModelProvider
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import org.yuzu.yuzu_emu.R
+import org.yuzu.yuzu_emu.model.MessageDialogViewModel
 
 class MessageDialogFragment : DialogFragment() {
+    private val messageDialogViewModel: MessageDialogViewModel by activityViewModels()
+
     override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
         val titleId = requireArguments().getInt(TITLE_ID)
         val titleString = requireArguments().getString(TITLE_STRING)!!
@@ -37,6 +44,12 @@ class MessageDialogFragment : DialogFragment() {
         return dialog.show()
     }
 
+    override fun onDismiss(dialog: DialogInterface) {
+        super.onDismiss(dialog)
+        messageDialogViewModel.dismissAction.invoke()
+        messageDialogViewModel.clear()
+    }
+
     private fun openLink(link: String) {
         val intent = Intent(Intent.ACTION_VIEW, Uri.parse(link))
         startActivity(intent)
@@ -52,11 +65,13 @@ class MessageDialogFragment : DialogFragment() {
         private const val HELP_LINK = "Link"
 
         fun newInstance(
+            activity: FragmentActivity,
             titleId: Int = 0,
             titleString: String = "",
             descriptionId: Int = 0,
             descriptionString: String = "",
-            helpLinkId: Int = 0
+            helpLinkId: Int = 0,
+            dismissAction: () -> Unit = {}
         ): MessageDialogFragment {
             val dialog = MessageDialogFragment()
             val bundle = Bundle()
@@ -67,6 +82,8 @@ class MessageDialogFragment : DialogFragment() {
                 putString(DESCRIPTION_STRING, descriptionString)
                 putInt(HELP_LINK, helpLinkId)
             }
+            ViewModelProvider(activity)[MessageDialogViewModel::class.java].dismissAction =
+                dismissAction
             dialog.arguments = bundle
             return dialog
         }

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

@@ -295,8 +295,10 @@ class SetupFragment : Fragment() {
 
     override fun onSaveInstanceState(outState: Bundle) {
         super.onSaveInstanceState(outState)
-        outState.putBoolean(KEY_NEXT_VISIBILITY, binding.buttonNext.isVisible)
-        outState.putBoolean(KEY_BACK_VISIBILITY, binding.buttonBack.isVisible)
+        if (_binding != null) {
+            outState.putBoolean(KEY_NEXT_VISIBILITY, binding.buttonNext.isVisible)
+            outState.putBoolean(KEY_BACK_VISIBILITY, binding.buttonBack.isVisible)
+        }
         outState.putBooleanArray(KEY_HAS_BEEN_WARNED, hasBeenWarned)
     }
 
@@ -353,11 +355,15 @@ class SetupFragment : Fragment() {
     }
 
     fun pageForward() {
-        binding.viewPager2.currentItem = binding.viewPager2.currentItem + 1
+        if (_binding != null) {
+            binding.viewPager2.currentItem += 1
+        }
     }
 
     fun pageBackward() {
-        binding.viewPager2.currentItem = binding.viewPager2.currentItem - 1
+        if (_binding != null) {
+            binding.viewPager2.currentItem -= 1
+        }
     }
 
     fun setPageWarned(page: Int) {

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

@@ -0,0 +1,13 @@
+// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.model
+
+import androidx.annotation.StringRes
+
+data class Installable(
+    @StringRes val titleId: Int,
+    @StringRes val descriptionId: Int,
+    val install: (() -> Unit)? = null,
+    val export: (() -> Unit)? = null
+)

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

@@ -0,0 +1,14 @@
+// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.model
+
+import androidx.lifecycle.ViewModel
+
+class MessageDialogViewModel : ViewModel() {
+    var dismissAction: () -> Unit = {}
+
+    fun clear() {
+        dismissAction = {}
+    }
+}

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

@@ -20,12 +20,20 @@ class TaskViewModel : ViewModel() {
     val isRunning: StateFlow<Boolean> get() = _isRunning
     private val _isRunning = MutableStateFlow(false)
 
+    val cancelled: StateFlow<Boolean> get() = _cancelled
+    private val _cancelled = MutableStateFlow(false)
+
     lateinit var task: () -> Any
 
     fun clear() {
         _result.value = Any()
         _isComplete.value = false
         _isRunning.value = false
+        _cancelled.value = false
+    }
+
+    fun setCancelled(value: Boolean) {
+        _cancelled.value = value
     }
 
     fun runTask() {
@@ -42,3 +50,9 @@ class TaskViewModel : ViewModel() {
         }
     }
 }
+
+enum class TaskState {
+    Completed,
+    Failed,
+    Cancelled
+}

src/android/app/src/main/java/org/yuzu/yuzu_emu/overlay/InputOverlay.kt

@@ -352,7 +352,7 @@ class InputOverlay(context: Context, attrs: AttributeSet?) :
     }
 
     private fun addOverlayControls(layout: String) {
-        val windowSize = getSafeScreenSize(context)
+        val windowSize = getSafeScreenSize(context, Pair(measuredWidth, measuredHeight))
         if (preferences.getBoolean(Settings.PREF_BUTTON_A, true)) {
             overlayButtons.add(
                 initializeOverlayButton(
@@ -593,7 +593,7 @@ class InputOverlay(context: Context, attrs: AttributeSet?) :
     }
 
     private fun saveControlPosition(prefId: String, x: Int, y: Int, layout: String) {
-        val windowSize = getSafeScreenSize(context)
+        val windowSize = getSafeScreenSize(context, Pair(measuredWidth, measuredHeight))
         val min = windowSize.first
         val max = windowSize.second
         PreferenceManager.getDefaultSharedPreferences(YuzuApplication.appContext).edit()
@@ -968,14 +968,17 @@ class InputOverlay(context: Context, attrs: AttributeSet?) :
          * @return A pair of points, the first being the top left corner of the safe area,
          *                  the second being the bottom right corner of the safe area
          */
-        private fun getSafeScreenSize(context: Context): Pair<Point, Point> {
+        private fun getSafeScreenSize(
+            context: Context,
+            screenSize: Pair<Int, Int>
+        ): Pair<Point, Point> {
             // Get screen size
             val windowMetrics = WindowMetricsCalculator.getOrCreate()
                 .computeCurrentWindowMetrics(context as Activity)
-            var maxY = windowMetrics.bounds.height().toFloat()
-            var maxX = windowMetrics.bounds.width().toFloat()
-            var minY = 0
+            var maxX = screenSize.first.toFloat()
+            var maxY = screenSize.second.toFloat()
             var minX = 0
+            var minY = 0
 
             // If we have API access, calculate the safe area to draw the overlay
             var cutoutLeft = 0

src/android/app/src/main/java/org/yuzu/yuzu_emu/ui/main/MainActivity.kt

@@ -6,6 +6,7 @@ package org.yuzu.yuzu_emu.ui.main
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
+import android.provider.DocumentsContract
 import android.view.View
 import android.view.ViewGroup.MarginLayoutParams
 import android.view.WindowManager
@@ -19,6 +20,7 @@ import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
+import androidx.documentfile.provider.DocumentFile
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.repeatOnLifecycle
@@ -29,6 +31,7 @@ import androidx.preference.PreferenceManager
 import com.google.android.material.color.MaterialColors
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.navigation.NavigationBarView
+import kotlinx.coroutines.CoroutineScope
 import java.io.File
 import java.io.FilenameFilter
 import java.io.IOException
@@ -41,21 +44,40 @@ import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.activities.EmulationActivity
 import org.yuzu.yuzu_emu.databinding.ActivityMainBinding
 import org.yuzu.yuzu_emu.databinding.DialogProgressBarBinding
+import org.yuzu.yuzu_emu.features.DocumentProvider
 import org.yuzu.yuzu_emu.features.settings.model.Settings
 import org.yuzu.yuzu_emu.fragments.IndeterminateProgressDialogFragment
 import org.yuzu.yuzu_emu.fragments.MessageDialogFragment
+import org.yuzu.yuzu_emu.getPublicFilesDir
 import org.yuzu.yuzu_emu.model.GamesViewModel
 import org.yuzu.yuzu_emu.model.HomeViewModel
+import org.yuzu.yuzu_emu.model.TaskState
+import org.yuzu.yuzu_emu.model.TaskViewModel
 import org.yuzu.yuzu_emu.utils.*
+import java.io.BufferedInputStream
+import java.io.BufferedOutputStream
+import java.io.FileOutputStream
+import java.time.LocalDateTime
+import java.time.format.DateTimeFormatter
+import java.util.zip.ZipEntry
+import java.util.zip.ZipInputStream
 
 class MainActivity : AppCompatActivity(), ThemeProvider {
     private lateinit var binding: ActivityMainBinding
 
     private val homeViewModel: HomeViewModel by viewModels()
     private val gamesViewModel: GamesViewModel by viewModels()
+    private val taskViewModel: TaskViewModel by viewModels()
 
     override var themeId: Int = 0
 
+    private val savesFolder
+        get() = "${getPublicFilesDir().canonicalPath}/nand/user/save/0000000000000000"
+
+    // Get first subfolder in saves folder (should be the user folder)
+    val savesFolderRoot get() = File(savesFolder).listFiles()?.firstOrNull()?.canonicalPath ?: ""
+    private var lastZipCreated: File? = null
+
     override fun onCreate(savedInstanceState: Bundle?) {
         val splashScreen = installSplashScreen()
         splashScreen.setKeepOnScreenCondition { !DirectoryInitialization.areDirectoriesReady }
@@ -307,6 +329,7 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
     fun processKey(result: Uri): Boolean {
         if (FileUtil.getExtension(result) != "keys") {
             MessageDialogFragment.newInstance(
+                this,
                 titleId = R.string.reading_keys_failure,
                 descriptionId = R.string.install_prod_keys_failure_extension_description
             ).show(supportFragmentManager, MessageDialogFragment.TAG)
@@ -336,6 +359,7 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
                 return true
             } else {
                 MessageDialogFragment.newInstance(
+                    this,
                     titleId = R.string.invalid_keys_error,
                     descriptionId = R.string.install_keys_failure_description,
                     helpLinkId = R.string.dumping_keys_quickstart_link
@@ -371,11 +395,12 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
             val task: () -> Any = {
                 var messageToShow: Any
                 try {
-                    FileUtil.unzip(inputZip, cacheFirmwareDir)
+                    FileUtil.unzipToInternalStorage(BufferedInputStream(inputZip), cacheFirmwareDir)
                     val unfilteredNumOfFiles = cacheFirmwareDir.list()?.size ?: -1
                     val filteredNumOfFiles = cacheFirmwareDir.list(filterNCA)?.size ?: -2
                     messageToShow = if (unfilteredNumOfFiles != filteredNumOfFiles) {
                         MessageDialogFragment.newInstance(
+                            this,
                             titleId = R.string.firmware_installed_failure,
                             descriptionId = R.string.firmware_installed_failure_description
                         )
@@ -395,7 +420,7 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
             IndeterminateProgressDialogFragment.newInstance(
                 this,
                 R.string.firmware_installing,
-                task
+                task = task
             ).show(supportFragmentManager, IndeterminateProgressDialogFragment.TAG)
         }
 
@@ -407,6 +432,7 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
 
             if (FileUtil.getExtension(result) != "bin") {
                 MessageDialogFragment.newInstance(
+                    this,
                     titleId = R.string.reading_keys_failure,
                     descriptionId = R.string.install_amiibo_keys_failure_extension_description
                 ).show(supportFragmentManager, MessageDialogFragment.TAG)
@@ -434,6 +460,7 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
                     ).show()
                 } else {
                     MessageDialogFragment.newInstance(
+                        this,
                         titleId = R.string.invalid_keys_error,
                         descriptionId = R.string.install_keys_failure_description,
                         helpLinkId = R.string.dumping_keys_quickstart_link
@@ -501,7 +528,7 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
         if (documents.isNotEmpty()) {
             IndeterminateProgressDialogFragment.newInstance(
                 this@MainActivity,
-                R.string.install_game_content
+                R.string.installing_game_content
             ) {
                 var installSuccess = 0
                 var installOverwrite = 0
@@ -509,7 +536,12 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
                 var errorExtension = 0
                 var errorOther = 0
                 documents.forEach {
-                    when (NativeLibrary.installFileToNand(it.toString())) {
+                    when (
+                        NativeLibrary.installFileToNand(
+                            it.toString(),
+                            FileUtil.getExtension(it)
+                        )
+                    ) {
                         NativeLibrary.InstallFileToNandResult.Success -> {
                             installSuccess += 1
                         }
@@ -583,12 +615,14 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
                         installResult.append(separator)
                     }
                     return@newInstance MessageDialogFragment.newInstance(
+                        this,
                         titleId = R.string.install_game_content_failure,
                         descriptionString = installResult.toString().trim(),
                         helpLinkId = R.string.install_game_content_help_link
                     )
                 } else {
                     return@newInstance MessageDialogFragment.newInstance(
+                        this,
                         titleId = R.string.install_game_content_success,
                         descriptionString = installResult.toString().trim()
                     )
@@ -596,4 +630,228 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
             }.show(supportFragmentManager, IndeterminateProgressDialogFragment.TAG)
         }
     }
+
+    val exportUserData = registerForActivityResult(
+        ActivityResultContracts.CreateDocument("application/zip")
+    ) { result ->
+        if (result == null) {
+            return@registerForActivityResult
+        }
+
+        IndeterminateProgressDialogFragment.newInstance(
+            this,
+            R.string.exporting_user_data,
+            true
+        ) {
+            val zipResult = FileUtil.zipFromInternalStorage(
+                File(DirectoryInitialization.userDirectory!!),
+                DirectoryInitialization.userDirectory!!,
+                BufferedOutputStream(contentResolver.openOutputStream(result)),
+                taskViewModel.cancelled
+            )
+            return@newInstance when (zipResult) {
+                TaskState.Completed -> getString(R.string.user_data_export_success)
+                TaskState.Failed -> R.string.export_failed
+                TaskState.Cancelled -> R.string.user_data_export_cancelled
+            }
+        }.show(supportFragmentManager, IndeterminateProgressDialogFragment.TAG)
+    }
+
+    val importUserData =
+        registerForActivityResult(ActivityResultContracts.OpenDocument()) { result ->
+            if (result == null) {
+                return@registerForActivityResult
+            }
+
+            IndeterminateProgressDialogFragment.newInstance(
+                this,
+                R.string.importing_user_data
+            ) {
+                val checkStream =
+                    ZipInputStream(BufferedInputStream(contentResolver.openInputStream(result)))
+                var isYuzuBackup = false
+                checkStream.use { stream ->
+                    var ze: ZipEntry? = null
+                    while (stream.nextEntry?.also { ze = it } != null) {
+                        val itemName = ze!!.name.trim()
+                        if (itemName == "/config/config.ini" || itemName == "config/config.ini") {
+                            isYuzuBackup = true
+                            return@use
+                        }
+                    }
+                }
+                if (!isYuzuBackup) {
+                    return@newInstance MessageDialogFragment.newInstance(
+                        this,
+                        titleId = R.string.invalid_yuzu_backup,
+                        descriptionId = R.string.user_data_import_failed_description
+                    )
+                }
+
+                // Clear existing user data
+                File(DirectoryInitialization.userDirectory!!).deleteRecursively()
+
+                // Copy archive to internal storage
+                try {
+                    FileUtil.unzipToInternalStorage(
+                        BufferedInputStream(contentResolver.openInputStream(result)),
+                        File(DirectoryInitialization.userDirectory!!)
+                    )
+                } catch (e: Exception) {
+                    return@newInstance MessageDialogFragment.newInstance(
+                        this,
+                        titleId = R.string.import_failed,
+                        descriptionId = R.string.user_data_import_failed_description
+                    )
+                }
+
+                // Reinitialize relevant data
+                NativeLibrary.initializeEmulation()
+                gamesViewModel.reloadGames(false)
+
+                return@newInstance getString(R.string.user_data_import_success)
+            }.show(supportFragmentManager, IndeterminateProgressDialogFragment.TAG)
+        }
+
+    /**
+     * Zips the save files located in the given folder path and creates a new zip file with the current date and time.
+     * @return true if the zip file is successfully created, false otherwise.
+     */
+    private fun zipSave(): Boolean {
+        try {
+            val tempFolder = File(getPublicFilesDir().canonicalPath, "temp")
+            tempFolder.mkdirs()
+            val saveFolder = File(savesFolderRoot)
+            val outputZipFile = File(
+                tempFolder,
+                "yuzu saves - ${
+                LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm"))
+                }.zip"
+            )
+            outputZipFile.createNewFile()
+            val result = FileUtil.zipFromInternalStorage(
+                saveFolder,
+                savesFolderRoot,
+                BufferedOutputStream(FileOutputStream(outputZipFile))
+            )
+            if (result == TaskState.Failed) {
+                return false
+            }
+            lastZipCreated = outputZipFile
+        } catch (e: Exception) {
+            return false
+        }
+        return true
+    }
+
+    /**
+     * Exports the save file located in the given folder path by creating a zip file and sharing it via intent.
+     */
+    fun exportSave() {
+        CoroutineScope(Dispatchers.IO).launch {
+            val wasZipCreated = zipSave()
+            val lastZipFile = lastZipCreated
+            if (!wasZipCreated || lastZipFile == null) {
+                withContext(Dispatchers.Main) {
+                    Toast.makeText(
+                        this@MainActivity,
+                        getString(R.string.export_save_failed),
+                        Toast.LENGTH_LONG
+                    ).show()
+                }
+                return@launch
+            }
+
+            withContext(Dispatchers.Main) {
+                val file = DocumentFile.fromSingleUri(
+                    this@MainActivity,
+                    DocumentsContract.buildDocumentUri(
+                        DocumentProvider.AUTHORITY,
+                        "${DocumentProvider.ROOT_ID}/temp/${lastZipFile.name}"
+                    )
+                )!!
+                val intent = Intent(Intent.ACTION_SEND)
+                    .setDataAndType(file.uri, "application/zip")
+                    .addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+                    .putExtra(Intent.EXTRA_STREAM, file.uri)
+                startForResultExportSave.launch(
+                    Intent.createChooser(
+                        intent,
+                        getString(R.string.share_save_file)
+                    )
+                )
+            }
+        }
+    }
+
+    private val startForResultExportSave =
+        registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { _ ->
+            File(getPublicFilesDir().canonicalPath, "temp").deleteRecursively()
+        }
+
+    val importSaves =
+        registerForActivityResult(ActivityResultContracts.OpenDocument()) { result ->
+            if (result == null) {
+                return@registerForActivityResult
+            }
+
+            NativeLibrary.initializeEmptyUserDirectory()
+
+            val inputZip = contentResolver.openInputStream(result)
+            // A zip needs to have at least one subfolder named after a TitleId in order to be considered valid.
+            var validZip = false
+            val savesFolder = File(savesFolderRoot)
+            val cacheSaveDir = File("${applicationContext.cacheDir.path}/saves/")
+            cacheSaveDir.mkdir()
+
+            if (inputZip == null) {
+                Toast.makeText(
+                    applicationContext,
+                    getString(R.string.fatal_error),
+                    Toast.LENGTH_LONG
+                ).show()
+                return@registerForActivityResult
+            }
+
+            val filterTitleId =
+                FilenameFilter { _, dirName -> dirName.matches(Regex("^0100[\\dA-Fa-f]{12}$")) }
+
+            try {
+                CoroutineScope(Dispatchers.IO).launch {
+                    FileUtil.unzipToInternalStorage(BufferedInputStream(inputZip), cacheSaveDir)
+                    cacheSaveDir.list(filterTitleId)?.forEach { savePath ->
+                        File(savesFolder, savePath).deleteRecursively()
+                        File(cacheSaveDir, savePath).copyRecursively(
+                            File(savesFolder, savePath),
+                            true
+                        )
+                        validZip = true
+                    }
+
+                    withContext(Dispatchers.Main) {
+                        if (!validZip) {
+                            MessageDialogFragment.newInstance(
+                                this@MainActivity,
+                                titleId = R.string.save_file_invalid_zip_structure,
+                                descriptionId = R.string.save_file_invalid_zip_structure_description
+                            ).show(supportFragmentManager, MessageDialogFragment.TAG)
+                            return@withContext
+                        }
+                        Toast.makeText(
+                            applicationContext,
+                            getString(R.string.save_file_imported_success),
+                            Toast.LENGTH_LONG
+                        ).show()
+                    }
+
+                    cacheSaveDir.deleteRecursively()
+                }
+            } catch (e: Exception) {
+                Toast.makeText(
+                    applicationContext,
+                    getString(R.string.fatal_error),
+                    Toast.LENGTH_LONG
+                ).show()
+            }
+        }
 }

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

@@ -8,6 +8,7 @@ import android.database.Cursor
 import android.net.Uri
 import android.provider.DocumentsContract
 import androidx.documentfile.provider.DocumentFile
+import kotlinx.coroutines.flow.StateFlow
 import java.io.BufferedInputStream
 import java.io.File
 import java.io.FileOutputStream
@@ -18,6 +19,9 @@ import java.util.zip.ZipEntry
 import java.util.zip.ZipInputStream
 import org.yuzu.yuzu_emu.YuzuApplication
 import org.yuzu.yuzu_emu.model.MinimalDocumentFile
+import org.yuzu.yuzu_emu.model.TaskState
+import java.io.BufferedOutputStream
+import java.util.zip.ZipOutputStream
 
 object FileUtil {
     const val PATH_TREE = "tree"
@@ -282,30 +286,65 @@ object FileUtil {
 
     /**
      * Extracts the given zip file into the given directory.
-     * @exception IOException if the file was being created outside of the target directory
      */
     @Throws(SecurityException::class)
-    fun unzip(zipStream: InputStream, destDir: File): Boolean {
-        ZipInputStream(BufferedInputStream(zipStream)).use { zis ->
+    fun unzipToInternalStorage(zipStream: BufferedInputStream, destDir: File) {
+        ZipInputStream(zipStream).use { zis ->
             var entry: ZipEntry? = zis.nextEntry
             while (entry != null) {
-                val entryName = entry.name
-                val entryFile = File(destDir, entryName)
-                if (!entryFile.canonicalPath.startsWith(destDir.canonicalPath + File.separator)) {
-                    throw SecurityException("Entry is outside of the target dir: " + entryFile.name)
+                val newFile = File(destDir, entry.name)
+                val destinationDirectory = if (entry.isDirectory) newFile else newFile.parentFile
+
+                if (!newFile.canonicalPath.startsWith(destDir.canonicalPath + File.separator)) {
+                    throw SecurityException("Zip file attempted path traversal! ${entry.name}")
                 }
-                if (entry.isDirectory) {
-                    entryFile.mkdirs()
-                } else {
-                    entryFile.parentFile?.mkdirs()
-                    entryFile.createNewFile()
-                    entryFile.outputStream().use { fos -> zis.copyTo(fos) }
+
+                if (!destinationDirectory.isDirectory && !destinationDirectory.mkdirs()) {
+                    throw IOException("Failed to create directory $destinationDirectory")
+                }
+
+                if (!entry.isDirectory) {
+                    newFile.outputStream().use { fos -> zis.copyTo(fos) }
                 }
                 entry = zis.nextEntry
             }
         }
+    }
 
-        return true
+    /**
+     * Creates a zip file from a directory within internal storage
+     * @param inputFile File representation of the item that will be zipped
+     * @param rootDir Directory containing the inputFile
+     * @param outputStream Stream where the zip file will be output
+     */
+    fun zipFromInternalStorage(
+        inputFile: File,
+        rootDir: String,
+        outputStream: BufferedOutputStream,
+        cancelled: StateFlow<Boolean>? = null
+    ): TaskState {
+        try {
+            ZipOutputStream(outputStream).use { zos ->
+                inputFile.walkTopDown().forEach { file ->
+                    if (cancelled?.value == true) {
+                        return TaskState.Cancelled
+                    }
+
+                    if (!file.isDirectory) {
+                        val entryName =
+                            file.absolutePath.removePrefix(rootDir).removePrefix("/")
+                        val entry = ZipEntry(entryName)
+                        zos.putNextEntry(entry)
+                        if (file.isFile) {
+                            file.inputStream().use { fis -> fis.copyTo(zos) }
+                        }
+                    }
+                }
+            }
+        } catch (e: Exception) {
+            return TaskState.Failed
+        }
+        return TaskState.Completed
     }
 
     fun isRootTreeUri(uri: Uri): Boolean {

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

@@ -11,6 +11,12 @@
 #include "jni/emu_window/emu_window.h"
 
 void EmuWindow_Android::OnSurfaceChanged(ANativeWindow* surface) {
+    m_window_width = ANativeWindow_getWidth(surface);
+    m_window_height = ANativeWindow_getHeight(surface);
+
+    // Ensures that we emulate with the correct aspect ratio.
+    UpdateCurrentFramebufferLayout(m_window_width, m_window_height);
+
     window_info.render_surface = reinterpret_cast<void*>(surface);
 }
 
@@ -62,14 +68,8 @@ EmuWindow_Android::EmuWindow_Android(InputCommon::InputSubsystem* input_subsyste
         return;
     }
 
-    m_window_width = ANativeWindow_getWidth(surface);
-    m_window_height = ANativeWindow_getHeight(surface);
-
-    // Ensures that we emulate with the correct aspect ratio.
-    UpdateCurrentFramebufferLayout(m_window_width, m_window_height);
-
+    OnSurfaceChanged(surface);
     window_info.type = Core::Frontend::WindowSystemType::Android;
-    window_info.render_surface = reinterpret_cast<void*>(surface);
 
     m_input_subsystem->Initialize();
 }

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

@@ -13,6 +13,8 @@
 
 #include <android/api-level.h>
 #include <android/native_window_jni.h>
+#include <common/fs/fs.h>
+#include <core/file_sys/savedata_factory.h>
 #include <core/loader/nro.h>
 #include <jni.h>
 
@@ -102,7 +104,7 @@ public:
         m_native_window = native_window;
     }
 
-    int InstallFileToNand(std::string filename) {
+    int InstallFileToNand(std::string filename, std::string file_extension) {
         jconst copy_func = [](const FileSys::VirtualFile& src, const FileSys::VirtualFile& dest,
                               std::size_t block_size) {
             if (src == nullptr || dest == nullptr) {
@@ -134,15 +136,11 @@ public:
         m_system.GetFileSystemController().CreateFactories(*m_vfs);
 
         [[maybe_unused]] std::shared_ptr<FileSys::NSP> nsp;
-        if (filename.ends_with("nsp")) {
+        if (file_extension == "nsp") {
             nsp = std::make_shared<FileSys::NSP>(m_vfs->OpenFile(filename, FileSys::Mode::Read));
             if (nsp->IsExtractedType()) {
                 return InstallError;
             }
-        } else if (filename.ends_with("xci")) {
-            jconst xci =
-                std::make_shared<FileSys::XCI>(m_vfs->OpenFile(filename, FileSys::Mode::Read));
-            nsp = xci->GetSecurePartitionNSP();
         } else {
             return ErrorFilenameExtension;
         }
@@ -607,8 +605,10 @@ void Java_org_yuzu_yuzu_1emu_NativeLibrary_setAppDirectory(JNIEnv* env, jobject
 }
 
 int Java_org_yuzu_yuzu_1emu_NativeLibrary_installFileToNand(JNIEnv* env, jobject instance,
-                                                            [[maybe_unused]] jstring j_file) {
-    return EmulationSession::GetInstance().InstallFileToNand(GetJString(env, j_file));
+                                                            jstring j_file,
+                                                            jstring j_file_extension) {
+    return EmulationSession::GetInstance().InstallFileToNand(GetJString(env, j_file),
+                                                             GetJString(env, j_file_extension));
 }
 
 void JNICALL Java_org_yuzu_yuzu_1emu_NativeLibrary_initializeGpuDriver(JNIEnv* env, jclass clazz,
@@ -879,4 +879,24 @@ void Java_org_yuzu_yuzu_1emu_NativeLibrary_submitInlineKeyboardInput(JNIEnv* env
     EmulationSession::GetInstance().SoftwareKeyboard()->SubmitInlineKeyboardInput(j_key_code);
 }
 
+void Java_org_yuzu_yuzu_1emu_NativeLibrary_initializeEmptyUserDirectory(JNIEnv* env,
+                                                                        jobject instance) {
+    const auto nand_dir = Common::FS::GetYuzuPath(Common::FS::YuzuPath::NANDDir);
+    auto vfs_nand_dir = EmulationSession::GetInstance().System().GetFilesystem()->OpenDirectory(
+        Common::FS::PathToUTF8String(nand_dir), FileSys::Mode::Read);
+
+    Service::Account::ProfileManager manager;
+    const auto user_id = manager.GetUser(static_cast<std::size_t>(0));
+    ASSERT(user_id);
+
+    const auto user_save_data_path = FileSys::SaveDataFactory::GetFullPath(
+        EmulationSession::GetInstance().System(), vfs_nand_dir, FileSys::SaveDataSpaceId::NandUser,
+        FileSys::SaveDataType::SaveData, 1, user_id->AsU128(), 0);
+
+    const auto full_path = Common::FS::ConcatPathSafe(nand_dir, user_save_data_path);
+    if (!Common::FS::CreateParentDirs(full_path)) {
+        LOG_WARNING(Frontend, "Failed to create full path of the default user's save directory");
+    }
+}
+
 } // extern "C"

src/android/app/src/main/res/drawable/ic_export.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="?attr/colorControlNormal"
+        android:pathData="M9,16h6v-6h4l-7,-7 -7,7h4zM5,18h14v2L5,20z" />
+</vector>

src/android/app/src/main/res/drawable/ic_import.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="?attr/colorControlNormal"
+        android:pathData="M19,9h-4V3H9v6H5l7,7 7,-7zM5,18v2h14v-2H5z" />
+</vector>

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

@@ -22,7 +22,7 @@
 
     <View
         android:id="@+id/navigation_bar_shade"
-        android:layout_width="match_parent"
+        android:layout_width="0dp"
         android:layout_height="1px"
         android:background="@android:color/transparent"
         android:clickable="false"

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

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="utf-8"?>
+<com.google.android.material.card.MaterialCardView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    style="?attr/materialCardViewOutlinedStyle"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginHorizontal="16dp"
+    android:layout_marginVertical="12dp">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        android:orientation="horizontal"
+        android:layout_gravity="center">
+
+        <LinearLayout
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginEnd="16dp"
+            android:layout_weight="1"
+            android:orientation="vertical">
+
+            <com.google.android.material.textview.MaterialTextView
+                android:id="@+id/title"
+                style="@style/TextAppearance.Material3.TitleMedium"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="@string/user_data"
+                android:textAlignment="viewStart" />
+
+            <com.google.android.material.textview.MaterialTextView
+                android:id="@+id/description"
+                style="@style/TextAppearance.Material3.BodyMedium"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="6dp"
+                android:text="@string/user_data_description"
+                android:textAlignment="viewStart" />
+
+        </LinearLayout>
+
+        <Button
+            android:id="@+id/button_export"
+            style="@style/Widget.Material3.Button.IconButton.Filled.Tonal"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_vertical"
+            android:contentDescription="@string/export"
+            android:tooltipText="@string/export"
+            android:visibility="gone"
+            app:icon="@drawable/ic_export"
+            tools:visibility="visible" />
+
+        <Button
+            android:id="@+id/button_install"
+            style="@style/Widget.Material3.Button.IconButton.Filled.Tonal"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_vertical"
+            android:layout_marginStart="12dp"
+            android:contentDescription="@string/string_import"
+            android:tooltipText="@string/string_import"
+            android:visibility="gone"
+            app:icon="@drawable/ic_import"
+            tools:visibility="visible" />
+
+    </LinearLayout>
+
+</com.google.android.material.card.MaterialCardView>

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

@@ -1,24 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
+<com.google.android.material.progressindicator.LinearProgressIndicator xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:orientation="vertical">
-
-    <com.google.android.material.progressindicator.LinearProgressIndicator
-        android:id="@+id/progress_bar"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_margin="24dp"
-        app:trackCornerRadius="4dp" />
-
-    <TextView
-        android:id="@+id/progress_text"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginLeft="24dp"
-        android:layout_marginRight="24dp"
-        android:layout_marginBottom="24dp"
-        android:gravity="end" />
-
-</LinearLayout>
+    android:id="@+id/progress_bar"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="24dp"
+    app:trackCornerRadius="4dp" />

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

@@ -32,7 +32,8 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
-                android:focusable="false">
+                android:focusable="false"
+                android:clickable="false">
 
                 <androidx.constraintlayout.widget.ConstraintLayout
                     android:id="@+id/loading_layout"
@@ -155,7 +156,7 @@
         android:id="@+id/in_game_menu"
         android:layout_width="wrap_content"
         android:layout_height="match_parent"
-        android:layout_gravity="start|bottom"
+        android:layout_gravity="start"
         app:headerLayout="@layout/header_in_game"
         app:menu="@menu/menu_in_game"
         tools:visibility="gone" />

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

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/coordinator_licenses"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="?attr/colorSurface">
+
+    <com.google.android.material.appbar.AppBarLayout
+        android:id="@+id/appbar_installables"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:fitsSystemWindows="true">
+
+        <com.google.android.material.appbar.MaterialToolbar
+            android:id="@+id/toolbar_installables"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            app:title="@string/manage_yuzu_data"
+            app:navigationIcon="@drawable/ic_back" />
+
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/list_installables"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:clipToPadding="false"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

src/android/app/src/main/res/navigation/home_navigation.xml

@@ -19,6 +19,9 @@
         <action
             android:id="@+id/action_homeSettingsFragment_to_earlyAccessFragment"
             app:destination="@id/earlyAccessFragment" />
+        <action
+            android:id="@+id/action_homeSettingsFragment_to_installableFragment"
+            app:destination="@id/installableFragment" />
     </fragment>
 
     <fragment
@@ -88,5 +91,9 @@
     <action
         android:id="@+id/action_global_settingsActivity"
         app:destination="@id/settingsActivity" />
+    <fragment
+        android:id="@+id/installableFragment"
+        android:name="org.yuzu.yuzu_emu.fragments.InstallableFragment"
+        android:label="InstallableFragment" />
 
 </navigation>

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

@@ -79,7 +79,6 @@
     <string name="manage_save_data">Speicherdaten verwalten</string>
     <string name="manage_save_data_description">Speicherdaten gefunden. Bitte wähle unten eine Option aus.</string>
     <string name="import_export_saves_description">Speicherdaten importieren oder exportieren</string>
-    <string name="import_export_saves_no_profile">Keine Speicherdaten gefunden. Bitte starte ein Spiel und versuche es erneut.</string>
     <string name="save_file_imported_success">Erfolgreich importiert</string>
     <string name="save_file_invalid_zip_structure">Ungültige Speicherverzeichnisstruktur</string>
     <string name="save_file_invalid_zip_structure_description">Der erste Unterordnername muss die Titel-ID des Spiels sein.</string>

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

@@ -81,7 +81,6 @@
     <string name="manage_save_data">Administrar datos de guardado</string>
     <string name="manage_save_data_description">Guardar los datos encontrados. Por favor, seleccione una opción de abajo.</string>
     <string name="import_export_saves_description">Importar o exportar archivos de guardado</string>
-    <string name="import_export_saves_no_profile">No se han encontrado datos de guardado. Por favor, ejecute un juego y vuelva a intentarlo.</string>
     <string name="save_file_imported_success">Importado correctamente</string>
     <string name="save_file_invalid_zip_structure">Estructura del directorio de guardado no válido</string>
     <string name="save_file_invalid_zip_structure_description">El nombre de la primera subcarpeta debe ser el Title ID del juego.</string>

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

@@ -81,7 +81,6 @@
     <string name="manage_save_data">Gérer les données de sauvegarde</string>
     <string name="manage_save_data_description">Données de sauvegarde trouvées. Veuillez sélectionner une option ci-dessous.</string>
     <string name="import_export_saves_description">Importer ou exporter des fichiers de sauvegarde</string>
-    <string name="import_export_saves_no_profile">Aucune données de sauvegarde trouvées. Veuillez lancer un jeu et réessayer.</string>
     <string name="save_file_imported_success">Importé avec succès</string>
     <string name="save_file_invalid_zip_structure">Structure de répertoire de sauvegarde non valide</string>
     <string name="save_file_invalid_zip_structure_description">Le nom du premier sous-dossier doit être l\'identifiant du titre du jeu.</string>

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

@@ -81,7 +81,6 @@
     <string name="manage_save_data">Gestisci i salvataggi</string>
     <string name="manage_save_data_description">Salvataggio non trovato. Seleziona un\'opzione di seguito.</string>
     <string name="import_export_saves_description">Importa o esporta i salvataggi</string>
-    <string name="import_export_saves_no_profile">Nessun salvataggio trovato. Avvia un gioco e riprova.</string>
     <string name="save_file_imported_success">Importato con successo</string>
     <string name="save_file_invalid_zip_structure">La struttura della cartella dei salvataggi è invalida</string>
     <string name="save_file_invalid_zip_structure_description">La prima sotto cartella <b>deve</b> chiamarsi come l\'ID del titolo del gioco.</string>

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

@@ -80,7 +80,6 @@
     <string name="manage_save_data">セーブデータを管理</string>
     <string name="manage_save_data_description">セーブデータが見つかりました。以下のオプションから選択してください。</string>
     <string name="import_export_saves_description">セーブファイルをインポート/エクスポート</string>
-    <string name="import_export_saves_no_profile">セーブデータがありません。ゲームを起動してから再度お試しください。</string>
     <string name="save_file_imported_success">インポートが完了しました</string>
     <string name="save_file_invalid_zip_structure">セーブデータのディレクトリ構造が無効です</string>
     <string name="save_file_invalid_zip_structure_description">最初のサブフォルダ名は、ゲームのタイトルIDである必要があります。</string>

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

@@ -81,7 +81,6 @@
     <string name="manage_save_data">저장 데이터 관리</string>
     <string name="manage_save_data_description">데이터를 저장했습니다. 아래에서 옵션을 선택하세요.</string>
     <string name="import_export_saves_description">저장 파일 가져오기 또는 내보내기</string>
-    <string name="import_export_saves_no_profile">저장 데이터를 찾을 수 없습니다. 게임을 실행한 후 다시 시도하세요.</string>
     <string name="save_file_imported_success">가져오기 성공</string>
     <string name="save_file_invalid_zip_structure">저장 디렉터리 구조가 잘못됨</string>
     <string name="save_file_invalid_zip_structure_description">첫 번째 하위 폴더 이름은 게임의 타이틀 ID여야 합니다.</string>

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

@@ -81,7 +81,6 @@
     <string name="manage_save_data">Administrere lagringsdata</string>
     <string name="manage_save_data_description">Lagringsdata funnet. Velg et alternativ nedenfor.</string>
     <string name="import_export_saves_description">Importer eller eksporter lagringsfiler</string>
-    <string name="import_export_saves_no_profile">Ingen lagringsdata funnet. Start et nytt spill og prøv på nytt.</string>
     <string name="save_file_imported_success">Vellykket import</string>
     <string name="save_file_invalid_zip_structure">Ugyldig struktur for lagringskatalog</string>
     <string name="save_file_invalid_zip_structure_description">Det første undermappenavnet må være spillets tittel-ID.</string>

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

@@ -81,7 +81,6 @@
     <string name="manage_save_data">Zarządzaj plikami zapisów gier</string>
     <string name="manage_save_data_description">Znaleziono pliki zapisów gier. Wybierz opcję poniżej.</string>
     <string name="import_export_saves_description">Importuj lub wyeksportuj pliki zapisów</string>
-    <string name="import_export_saves_no_profile">Nie znaleziono plików zapisów. Uruchom grę i spróbuj ponownie.</string>
     <string name="save_file_imported_success">Zaimportowano pomyślnie</string>
     <string name="save_file_invalid_zip_structure">Niepoprawna struktura folderów</string>
     <string name="save_file_invalid_zip_structure_description">Pierwszy podkatalog musi zawierać w nazwie numer ID tytułu gry.</string>

src/android/app/src/main/res/values-pt-rBR/strings.xml

@@ -81,7 +81,6 @@
     <string name="manage_save_data">Gerir dados guardados</string>
     <string name="manage_save_data_description">Dados não encontrados. Por favor seleciona uma opção abaixo.</string>
     <string name="import_export_saves_description">Importa ou exporta dados guardados</string>
-    <string name="import_export_saves_no_profile">Dados não encontrados. Por favor lança o jogo e tenta novamente.</string>
     <string name="save_file_imported_success">Importado com sucesso</string>
     <string name="save_file_invalid_zip_structure">Estrutura de diretório de dados invalida</string>
     <string name="save_file_invalid_zip_structure_description">O nome da primeira sub pasta tem de ser a ID do jogo.</string>

src/android/app/src/main/res/values-pt-rPT/strings.xml

@@ -81,7 +81,6 @@
     <string name="manage_save_data">Gerir dados guardados</string>
     <string name="manage_save_data_description">Dados não encontrados. Por favor seleciona uma opção abaixo.</string>
     <string name="import_export_saves_description">Importa ou exporta dados guardados</string>
-    <string name="import_export_saves_no_profile">Dados não encontrados. Por favor lança o jogo e tenta novamente.</string>
     <string name="save_file_imported_success">Importado com sucesso</string>
     <string name="save_file_invalid_zip_structure">Estrutura de diretório de dados invalida</string>
     <string name="save_file_invalid_zip_structure_description">O nome da primeira sub pasta tem de ser a ID do jogo.</string>

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

@@ -81,7 +81,6 @@
     <string name="manage_save_data">Управление данными сохранений</string>
     <string name="manage_save_data_description">Найдено данные сохранений. Пожалуйста, выберите вариант ниже.</string>
     <string name="import_export_saves_description">Импорт или экспорт файлов сохранения</string>
-    <string name="import_export_saves_no_profile">Данные сохранений не найдены. Пожалуйста, запустите игру и повторите попытку.</string>
     <string name="save_file_imported_success">Успешно импортировано</string>
     <string name="save_file_invalid_zip_structure">Недопустимая структура папки сохранения</string>
     <string name="save_file_invalid_zip_structure_description">Название первой вложенной папки должно быть идентификатором игры.</string>

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

@@ -81,7 +81,6 @@
     <string name="manage_save_data">Керування даними збережень</string>
     <string name="manage_save_data_description">Знайдено дані збережень. Будь ласка, виберіть варіант нижче.</string>
     <string name="import_export_saves_description">Імпорт або експорт файлів збереження</string>
-    <string name="import_export_saves_no_profile">Дані збережень не знайдено. Будь ласка, запустіть гру та повторіть спробу.</string>
     <string name="save_file_imported_success">Успішно імпортовано</string>
     <string name="save_file_invalid_zip_structure">Неприпустима структура папки збереження</string>
     <string name="save_file_invalid_zip_structure_description">Назва першої вкладеної папки має бути ідентифікатором гри.</string>

src/android/app/src/main/res/values-w600dp/integers.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <integer name="grid_columns">2</integer>
+
+</resources>

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

@@ -81,7 +81,6 @@
     <string name="manage_save_data">管理存档数据</string>
     <string name="manage_save_data_description">已找到存档数据，请选择下方的选项。</string>
     <string name="import_export_saves_description">导入或导出存档</string>
-    <string name="import_export_saves_no_profile">找不到存档数据，请启动游戏并重试。</string>
     <string name="save_file_imported_success">已成功导入存档</string>
     <string name="save_file_invalid_zip_structure">无效的存档目录</string>
     <string name="save_file_invalid_zip_structure_description">第一个子文件夹名称必须为当前游戏的 ID。</string>

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

@@ -81,7 +81,6 @@
     <string name="manage_save_data">管理儲存資料</string>
     <string name="manage_save_data_description">已找到儲存資料，請選取下方的選項。</string>
     <string name="import_export_saves_description">匯入或匯出儲存檔案</string>
-    <string name="import_export_saves_no_profile">找不到儲存資料，請啟動遊戲並重試。</string>
     <string name="save_file_imported_success">已成功匯入</string>
     <string name="save_file_invalid_zip_structure">無效的儲存目錄結構</string>
     <string name="save_file_invalid_zip_structure_description">首個子資料夾名稱必須為遊戲標題 ID。</string>

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

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <integer name="game_title_lines">2</integer>
+    <integer name="grid_columns">1</integer>
 
     <!-- Default SWITCH landscape layout -->
     <integer name="SWITCH_BUTTON_A_X">760</integer>

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

@@ -90,7 +90,6 @@
     <string name="manage_save_data">Manage save data</string>
     <string name="manage_save_data_description">Save data found. Please select an option below.</string>
     <string name="import_export_saves_description">Import or export save files</string>
-    <string name="import_export_saves_no_profile">No save data found. Please launch a game and retry.</string>
     <string name="save_file_imported_success">Imported successfully</string>
     <string name="save_file_invalid_zip_structure">Invalid save directory structure</string>
     <string name="save_file_invalid_zip_structure_description">The first subfolder name must be the title ID of the game.</string>
@@ -101,12 +100,13 @@
     <string name="firmware_installing">Installing firmware</string>
     <string name="firmware_installed_success">Firmware installed successfully</string>
     <string name="firmware_installed_failure">Firmware installation failed</string>
-    <string name="firmware_installed_failure_description">Verify that the ZIP contains valid firmware and try again.</string>
+    <string name="firmware_installed_failure_description">Make sure the firmware nca files are at the root of the zip and try again.</string>
     <string name="share_log">Share debug logs</string>
     <string name="share_log_description">Share yuzu\'s log file to debug issues</string>
     <string name="share_log_missing">No log file found</string>
     <string name="install_game_content">Install game content</string>
     <string name="install_game_content_description">Install game updates or DLC</string>
+    <string name="installing_game_content">Installing content…</string>
     <string name="install_game_content_failure">Error installing file(s) to NAND</string>
     <string name="install_game_content_failure_description">Please ensure content(s) are valid and that the prod.keys file is installed.</string>
     <string name="install_game_content_failure_base">Installation of base games isn\'t permitted in order to avoid possible conflicts.</string>
@@ -118,6 +118,10 @@
     <string name="install_game_content_help_link">https://yuzu-emu.org/help/quickstart/#dumping-installed-updates</string>
     <string name="custom_driver_not_supported">Custom drivers not supported</string>
     <string name="custom_driver_not_supported_description">Custom driver loading isn\'t currently supported for this device.\nCheck this option again in the future to see if support was added!</string>
+    <string name="manage_yuzu_data">Manage yuzu data</string>
+    <string name="manage_yuzu_data_description">Import/export firmware, keys, user data, and more!</string>
+    <string name="share_save_file">Share save file</string>
+    <string name="export_save_failed">Failed to export save</string>
 
     <!-- About screen strings -->
     <string name="gaia_is_not_real">Gaia isn\'t real</string>
@@ -128,6 +132,16 @@
     <string name="contributors_link">https://github.com/yuzu-emu/yuzu/graphs/contributors</string>
     <string name="licenses_description">Projects that make yuzu for Android possible</string>
     <string name="build">Build</string>
+    <string name="user_data">User data</string>
+    <string name="user_data_description">Import/export all app data.\n\nWhen importing user data, all existing user data will be deleted!</string>
+    <string name="exporting_user_data">Exporting user data…</string>
+    <string name="importing_user_data">Importing user data…</string>
+    <string name="import_user_data">Import user data</string>
+    <string name="invalid_yuzu_backup">Invalid yuzu backup</string>
+    <string name="user_data_export_success">User data exported successfully</string>
+    <string name="user_data_import_success">User data imported successfully</string>
+    <string name="user_data_export_cancelled">Export cancelled</string>
+    <string name="user_data_import_failed_description">Make sure the user data folders are at the root of the zip folder and contain a config file at config/config.ini and try again.</string>
     <string name="support_link">https://discord.gg/u77vRWY</string>
     <string name="website_link">https://yuzu-emu.org/</string>
     <string name="github_link">https://github.com/yuzu-emu</string>
@@ -215,6 +229,11 @@
     <string name="auto">Auto</string>
     <string name="submit">Submit</string>
     <string name="string_null">Null</string>
+    <string name="string_import">Import</string>
+    <string name="export">Export</string>
+    <string name="export_failed">Export failed</string>
+    <string name="import_failed">Import failed</string>
+    <string name="cancelling">Cancelling</string>
 
     <!-- GPU driver installation -->
     <string name="select_gpu_driver">Select GPU driver</string>
@@ -281,6 +300,7 @@
     <string name="performance_warning">Turning off this setting will significantly reduce emulation performance! For the best experience, it is recommended that you leave this setting enabled.</string>
     <string name="device_memory_inadequate">Device RAM: %1$s\nRecommended: %2$s</string>
     <string name="memory_formatted">%1$s %2$s</string>
+    <string name="no_game_present">No bootable game present!</string>
 
     <!-- Region Names -->
     <string name="region_japan">Japan</string>

src/audio_core/CMakeLists.txt

@@ -10,6 +10,13 @@ add_library(audio_core STATIC
     adsp/apps/audio_renderer/command_buffer.h
     adsp/apps/audio_renderer/command_list_processor.cpp
     adsp/apps/audio_renderer/command_list_processor.h
+    adsp/apps/opus/opus_decoder.cpp
+    adsp/apps/opus/opus_decoder.h
+    adsp/apps/opus/opus_decode_object.cpp
+    adsp/apps/opus/opus_decode_object.h
+    adsp/apps/opus/opus_multistream_decode_object.cpp
+    adsp/apps/opus/opus_multistream_decode_object.h
+    adsp/apps/opus/shared_memory.h
     audio_core.cpp
     audio_core.h
     audio_event.h
@@ -35,6 +42,13 @@ add_library(audio_core STATIC
     in/audio_in.h
     in/audio_in_system.cpp
     in/audio_in_system.h
+    opus/hardware_opus.cpp
+    opus/hardware_opus.h
+    opus/decoder_manager.cpp
+    opus/decoder_manager.h
+    opus/decoder.cpp
+    opus/decoder.h
+    opus/parameters.h
     out/audio_out.cpp
     out/audio_out.h
     out/audio_out_system.cpp
@@ -214,7 +228,7 @@ else()
     )
 endif()
 
-target_link_libraries(audio_core PUBLIC common core)
+target_link_libraries(audio_core PUBLIC common core Opus::opus)
 if (ARCHITECTURE_x86_64 OR ARCHITECTURE_arm64)
     target_link_libraries(audio_core PRIVATE dynarmic::dynarmic)
 endif()

src/audio_core/adsp/adsp.cpp

@@ -7,12 +7,21 @@
 namespace AudioCore::ADSP {
 
 ADSP::ADSP(Core::System& system, Sink::Sink& sink) {
-    audio_renderer =
-        std::make_unique<AudioRenderer::AudioRenderer>(system, system.ApplicationMemory(), sink);
+    audio_renderer = std::make_unique<AudioRenderer::AudioRenderer>(system, sink);
+    opus_decoder = std::make_unique<OpusDecoder::OpusDecoder>(system);
+    opus_decoder->Send(Direction::DSP, OpusDecoder::Message::Start);
+    if (opus_decoder->Receive(Direction::Host) != OpusDecoder::Message::StartOK) {
+        LOG_ERROR(Service_Audio, "OpusDeocder failed to initialize.");
+        return;
+    }
 }
 
 AudioRenderer::AudioRenderer& ADSP::AudioRenderer() {
     return *audio_renderer.get();
 }
 
+OpusDecoder::OpusDecoder& ADSP::OpusDecoder() {
+    return *opus_decoder.get();
+}
+
 } // namespace AudioCore::ADSP

src/audio_core/adsp/adsp.h

@@ -4,6 +4,7 @@
 #pragma once
 
 #include "audio_core/adsp/apps/audio_renderer/audio_renderer.h"
+#include "audio_core/adsp/apps/opus/opus_decoder.h"
 #include "common/common_types.h"
 
 namespace Core {
@@ -40,10 +41,12 @@ public:
     ~ADSP() = default;
 
     AudioRenderer::AudioRenderer& AudioRenderer();
+    OpusDecoder::OpusDecoder& OpusDecoder();
 
 private:
     /// AudioRenderer app
     std::unique_ptr<AudioRenderer::AudioRenderer> audio_renderer{};
+    std::unique_ptr<OpusDecoder::OpusDecoder> opus_decoder{};
 };
 
 } // namespace ADSP

src/audio_core/adsp/apps/audio_renderer/audio_renderer.cpp

@@ -14,13 +14,12 @@
 #include "core/core.h"
 #include "core/core_timing.h"
 
-MICROPROFILE_DEFINE(Audio_Renderer, "Audio", "DSP", MP_RGB(60, 19, 97));
+MICROPROFILE_DEFINE(Audio_Renderer, "Audio", "DSP_AudioRenderer", MP_RGB(60, 19, 97));
 
 namespace AudioCore::ADSP::AudioRenderer {
 
-AudioRenderer::AudioRenderer(Core::System& system_, Core::Memory::Memory& memory_,
-                             Sink::Sink& sink_)
-    : system{system_}, memory{memory_}, sink{sink_} {}
+AudioRenderer::AudioRenderer(Core::System& system_, Sink::Sink& sink_)
+    : system{system_}, sink{sink_} {}
 
 AudioRenderer::~AudioRenderer() {
     Stop();
@@ -33,8 +32,8 @@ void AudioRenderer::Start() {
 
     main_thread = std::jthread([this](std::stop_token stop_token) { Main(stop_token); });
 
-    mailbox.Send(Direction::DSP, {Message::InitializeOK, {}});
-    if (mailbox.Receive(Direction::Host).msg != Message::InitializeOK) {
+    mailbox.Send(Direction::DSP, Message::InitializeOK);
+    if (mailbox.Receive(Direction::Host) != Message::InitializeOK) {
         LOG_ERROR(Service_Audio, "Host Audio Renderer -- Failed to receive shutdown "
                                  "message response from ADSP!");
         return;
@@ -47,8 +46,8 @@ void AudioRenderer::Stop() {
         return;
     }
 
-    mailbox.Send(Direction::DSP, {Message::Shutdown, {}});
-    if (mailbox.Receive(Direction::Host).msg != Message::Shutdown) {
+    mailbox.Send(Direction::DSP, Message::Shutdown);
+    if (mailbox.Receive(Direction::Host) != Message::Shutdown) {
         LOG_ERROR(Service_Audio, "Host Audio Renderer -- Failed to receive shutdown "
                                  "message response from ADSP!");
     }
@@ -67,25 +66,25 @@ void AudioRenderer::Stop() {
 
 void AudioRenderer::Signal() {
     signalled_tick = system.CoreTiming().GetGlobalTimeNs().count();
-    Send(Direction::DSP, {Message::Render, {}});
+    Send(Direction::DSP, Message::Render);
 }
 
 void AudioRenderer::Wait() {
-    auto received = Receive(Direction::Host);
-    if (received.msg != Message::RenderResponse) {
+    auto msg = Receive(Direction::Host);
+    if (msg != Message::RenderResponse) {
         LOG_ERROR(Service_Audio,
                   "Did not receive the expected render response from the AudioRenderer! Expected "
                   "{}, got {}",
-                  Message::RenderResponse, received.msg);
+                  Message::RenderResponse, msg);
     }
 }
 
-void AudioRenderer::Send(Direction dir, MailboxMessage message) {
+void AudioRenderer::Send(Direction dir, u32 message) {
     mailbox.Send(dir, std::move(message));
 }
 
-MailboxMessage AudioRenderer::Receive(Direction dir, bool block) {
-    return mailbox.Receive(dir, block);
+u32 AudioRenderer::Receive(Direction dir) {
+    return mailbox.Receive(dir);
 }
 
 void AudioRenderer::SetCommandBuffer(s32 session_id, CpuAddr buffer, u64 size, u64 time_limit,
@@ -120,7 +119,7 @@ void AudioRenderer::CreateSinkStreams() {
 }
 
 void AudioRenderer::Main(std::stop_token stop_token) {
-    static constexpr char name[]{"AudioRenderer"};
+    static constexpr char name[]{"DSP_AudioRenderer_Main"};
     MicroProfileOnThreadCreate(name);
     Common::SetCurrentThreadName(name);
     Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
@@ -128,28 +127,28 @@ void AudioRenderer::Main(std::stop_token stop_token) {
     // TODO: Create buffer map/unmap thread + mailbox
     // TODO: Create gMix devices, initialize them here
 
-    if (mailbox.Receive(Direction::DSP).msg != Message::InitializeOK) {
+    if (mailbox.Receive(Direction::DSP) != Message::InitializeOK) {
         LOG_ERROR(Service_Audio,
                   "ADSP Audio Renderer -- Failed to receive initialize message from host!");
         return;
     }
 
-    mailbox.Send(Direction::Host, {Message::InitializeOK, {}});
+    mailbox.Send(Direction::Host, Message::InitializeOK);
 
     // 0.12 seconds (2,304,000 / 19,200,000)
     constexpr u64 max_process_time{2'304'000ULL};
 
     while (!stop_token.stop_requested()) {
-        auto received{mailbox.Receive(Direction::DSP)};
-        switch (received.msg) {
+        auto msg{mailbox.Receive(Direction::DSP)};
+        switch (msg) {
         case Message::Shutdown:
-            mailbox.Send(Direction::Host, {Message::Shutdown, {}});
+            mailbox.Send(Direction::Host, Message::Shutdown);
             return;
 
         case Message::Render: {
             if (system.IsShuttingDown()) [[unlikely]] {
                 std::this_thread::sleep_for(std::chrono::milliseconds(5));
-                mailbox.Send(Direction::Host, {Message::RenderResponse, {}});
+                mailbox.Send(Direction::Host, Message::RenderResponse);
                 continue;
             }
             std::array<bool, MaxRendererSessions> buffers_reset{};
@@ -205,13 +204,12 @@ void AudioRenderer::Main(std::stop_token stop_token) {
                 }
             }
 
-            mailbox.Send(Direction::Host, {Message::RenderResponse, {}});
+            mailbox.Send(Direction::Host, Message::RenderResponse);
         } break;
 
         default:
             LOG_WARNING(Service_Audio,
-                        "ADSP AudioRenderer received an invalid message, msg={:02X}!",
-                        received.msg);
+                        "ADSP AudioRenderer received an invalid message, msg={:02X}!", msg);
             break;
         }
     }

src/audio_core/adsp/apps/audio_renderer/audio_renderer.h

@@ -17,13 +17,6 @@
 
 namespace Core {
 class System;
-namespace Timing {
-struct EventType;
-}
-namespace Memory {
-class Memory;
-}
-class System;
 } // namespace Core
 
 namespace AudioCore {
@@ -34,19 +27,19 @@ class Sink;
 namespace ADSP::AudioRenderer {
 
 enum Message : u32 {
-    Invalid = 0x00,
-    MapUnmap_Map = 0x01,
-    MapUnmap_MapResponse = 0x02,
-    MapUnmap_Unmap = 0x03,
-    MapUnmap_UnmapResponse = 0x04,
-    MapUnmap_InvalidateCache = 0x05,
-    MapUnmap_InvalidateCacheResponse = 0x06,
-    MapUnmap_Shutdown = 0x07,
-    MapUnmap_ShutdownResponse = 0x08,
-    InitializeOK = 0x16,
-    RenderResponse = 0x20,
-    Render = 0x2A,
-    Shutdown = 0x34,
+    Invalid = 0,
+    MapUnmap_Map = 1,
+    MapUnmap_MapResponse = 2,
+    MapUnmap_Unmap = 3,
+    MapUnmap_UnmapResponse = 4,
+    MapUnmap_InvalidateCache = 5,
+    MapUnmap_InvalidateCacheResponse = 6,
+    MapUnmap_Shutdown = 7,
+    MapUnmap_ShutdownResponse = 8,
+    InitializeOK = 22,
+    RenderResponse = 32,
+    Render = 42,
+    Shutdown = 52,
 };
 
 /**
@@ -54,7 +47,7 @@ enum Message : u32 {
  */
 class AudioRenderer {
 public:
-    explicit AudioRenderer(Core::System& system, Core::Memory::Memory& memory, Sink::Sink& sink);
+    explicit AudioRenderer(Core::System& system, Sink::Sink& sink);
     ~AudioRenderer();
 
     /**
@@ -72,8 +65,8 @@ public:
     void Signal();
     void Wait();
 
-    void Send(Direction dir, MailboxMessage message);
-    MailboxMessage Receive(Direction dir, bool block = true);
+    void Send(Direction dir, u32 message);
+    u32 Receive(Direction dir);
 
     void SetCommandBuffer(s32 session_id, CpuAddr buffer, u64 size, u64 time_limit,
                           u64 applet_resource_user_id, bool reset) noexcept;
@@ -94,9 +87,7 @@ private:
 
     /// Core system
     Core::System& system;
-    /// Memory
-    Core::Memory::Memory& memory;
-    /// The output sink the AudioRenderer will use
+    /// The output sink the AudioRenderer will send samples to
     Sink::Sink& sink;
     /// The active mailbox
     Mailbox mailbox;
@@ -104,11 +95,13 @@ private:
     std::jthread main_thread{};
     /// The current state
     std::atomic<bool> running{};
+    /// Shared memory of input command buffers, set by host, read by DSP
     std::array<CommandBuffer, MaxRendererSessions> command_buffers{};
     /// The command lists to process
     std::array<CommandListProcessor, MaxRendererSessions> command_list_processors{};
     /// The streams which will receive the processed samples
     std::array<Sink::SinkStream*, MaxRendererSessions> streams{};
+    /// CPU Tick when the DSP was signalled to process, uses time rather than tick
     u64 signalled_tick{0};
 };
 

src/audio_core/adsp/apps/opus/opus_decode_object.cpp

@@ -0,0 +1,107 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/adsp/apps/opus/opus_decode_object.h"
+#include "common/assert.h"
+
+namespace AudioCore::ADSP::OpusDecoder {
+namespace {
+bool IsValidChannelCount(u32 channel_count) {
+    return channel_count == 1 || channel_count == 2;
+}
+} // namespace
+
+u32 OpusDecodeObject::GetWorkBufferSize(u32 channel_count) {
+    if (!IsValidChannelCount(channel_count)) {
+        return 0;
+    }
+    return static_cast<u32>(sizeof(OpusDecodeObject)) + opus_decoder_get_size(channel_count);
+}
+
+OpusDecodeObject& OpusDecodeObject::Initialize(u64 buffer, u64 buffer2) {
+    auto* new_decoder = reinterpret_cast<OpusDecodeObject*>(buffer);
+    auto* comparison = reinterpret_cast<OpusDecodeObject*>(buffer2);
+
+    if (new_decoder->magic == DecodeObjectMagic) {
+        if (!new_decoder->initialized ||
+            (new_decoder->initialized && new_decoder->self == comparison)) {
+            new_decoder->state_valid = true;
+        }
+    } else {
+        new_decoder->initialized = false;
+        new_decoder->state_valid = true;
+    }
+    return *new_decoder;
+}
+
+s32 OpusDecodeObject::InitializeDecoder(u32 sample_rate, u32 channel_count) {
+    if (!state_valid) {
+        return OPUS_INVALID_STATE;
+    }
+
+    if (initialized) {
+        return OPUS_OK;
+    }
+
+    // Unfortunately libopus does not expose the OpusDecoder struct publicly, so we can't include
+    // it in this class. Nintendo does not allocate memory, which is why we have a workbuffer
+    // provided.
+    // We could use _create and have libopus allocate it for us, but then we have to separately
+    // track which decoder is being used between this and multistream in order to call the correct
+    // destroy from the host side.
+    // This is a bit cringe, but is safe as these objects are only ever initialized inside the given
+    // workbuffer, and GetWorkBufferSize will guarantee there's enough space to follow.
+    decoder = (LibOpusDecoder*)(this + 1);
+    s32 ret = opus_decoder_init(decoder, sample_rate, channel_count);
+    if (ret == OPUS_OK) {
+        magic = DecodeObjectMagic;
+        initialized = true;
+        state_valid = true;
+        self = this;
+        final_range = 0;
+    }
+    return ret;
+}
+
+s32 OpusDecodeObject::Shutdown() {
+    if (!state_valid) {
+        return OPUS_INVALID_STATE;
+    }
+
+    if (initialized) {
+        magic = 0x0;
+        initialized = false;
+        state_valid = false;
+        self = nullptr;
+        final_range = 0;
+        decoder = nullptr;
+    }
+    return OPUS_OK;
+}
+
+s32 OpusDecodeObject::ResetDecoder() {
+    return opus_decoder_ctl(decoder, OPUS_RESET_STATE);
+}
+
+s32 OpusDecodeObject::Decode(u32& out_sample_count, u64 output_data, u64 output_data_size,
+                             u64 input_data, u64 input_data_size) {
+    ASSERT(initialized);
+    out_sample_count = 0;
+
+    if (!state_valid) {
+        return OPUS_INVALID_STATE;
+    }
+
+    auto ret_code_or_samples = opus_decode(
+        decoder, reinterpret_cast<const u8*>(input_data), static_cast<opus_int32>(input_data_size),
+        reinterpret_cast<opus_int16*>(output_data), static_cast<opus_int32>(output_data_size), 0);
+
+    if (ret_code_or_samples < OPUS_OK) {
+        return ret_code_or_samples;
+    }
+
+    out_sample_count = ret_code_or_samples;
+    return opus_decoder_ctl(decoder, OPUS_GET_FINAL_RANGE_REQUEST, &final_range);
+}
+
+} // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/apps/opus/opus_decode_object.h

@@ -0,0 +1,38 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <opus.h>
+
+#include "common/common_types.h"
+
+namespace AudioCore::ADSP::OpusDecoder {
+using LibOpusDecoder = ::OpusDecoder;
+static constexpr u32 DecodeObjectMagic = 0xDEADBEEF;
+
+class OpusDecodeObject {
+public:
+    static u32 GetWorkBufferSize(u32 channel_count);
+    static OpusDecodeObject& Initialize(u64 buffer, u64 buffer2);
+
+    s32 InitializeDecoder(u32 sample_rate, u32 channel_count);
+    s32 Shutdown();
+    s32 ResetDecoder();
+    s32 Decode(u32& out_sample_count, u64 output_data, u64 output_data_size, u64 input_data,
+               u64 input_data_size);
+    u32 GetFinalRange() const noexcept {
+        return final_range;
+    }
+
+private:
+    u32 magic;
+    bool initialized;
+    bool state_valid;
+    OpusDecodeObject* self;
+    u32 final_range;
+    LibOpusDecoder* decoder;
+};
+static_assert(std::is_trivially_constructible_v<OpusDecodeObject>);
+
+} // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/apps/opus/opus_decoder.cpp

@@ -0,0 +1,269 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <array>
+#include <chrono>
+
+#include "audio_core/adsp/apps/opus/opus_decode_object.h"
+#include "audio_core/adsp/apps/opus/opus_multistream_decode_object.h"
+#include "audio_core/adsp/apps/opus/shared_memory.h"
+#include "audio_core/audio_core.h"
+#include "audio_core/common/common.h"
+#include "common/logging/log.h"
+#include "common/microprofile.h"
+#include "common/thread.h"
+#include "core/core.h"
+#include "core/core_timing.h"
+
+MICROPROFILE_DEFINE(OpusDecoder, "Audio", "DSP_OpusDecoder", MP_RGB(60, 19, 97));
+
+namespace AudioCore::ADSP::OpusDecoder {
+
+namespace {
+constexpr size_t OpusStreamCountMax = 255;
+
+bool IsValidChannelCount(u32 channel_count) {
+    return channel_count == 1 || channel_count == 2;
+}
+
+bool IsValidMultiStreamChannelCount(u32 channel_count) {
+    return channel_count <= OpusStreamCountMax;
+}
+
+bool IsValidMultiStreamStreamCounts(s32 total_stream_count, s32 sterero_stream_count) {
+    return IsValidMultiStreamChannelCount(total_stream_count) && total_stream_count > 0 &&
+           sterero_stream_count > 0 && sterero_stream_count <= total_stream_count;
+}
+} // namespace
+
+OpusDecoder::OpusDecoder(Core::System& system_) : system{system_} {
+    init_thread = std::jthread([this](std::stop_token stop_token) { Init(stop_token); });
+}
+
+OpusDecoder::~OpusDecoder() {
+    if (!running) {
+        init_thread.request_stop();
+        return;
+    }
+
+    // Shutdown the thread
+    Send(Direction::DSP, Message::Shutdown);
+    auto msg = Receive(Direction::Host);
+    ASSERT_MSG(msg == Message::ShutdownOK, "Expected Opus shutdown code {}, got {}",
+               Message::ShutdownOK, msg);
+    main_thread.request_stop();
+    main_thread.join();
+    running = false;
+}
+
+void OpusDecoder::Send(Direction dir, u32 message) {
+    mailbox.Send(dir, std::move(message));
+}
+
+u32 OpusDecoder::Receive(Direction dir, std::stop_token stop_token) {
+    return mailbox.Receive(dir, stop_token);
+}
+
+void OpusDecoder::Init(std::stop_token stop_token) {
+    Common::SetCurrentThreadName("DSP_OpusDecoder_Init");
+
+    if (Receive(Direction::DSP, stop_token) != Message::Start) {
+        LOG_ERROR(Service_Audio,
+                  "DSP OpusDecoder failed to receive Start message. Opus initialization failed.");
+        return;
+    }
+    main_thread = std::jthread([this](std::stop_token st) { Main(st); });
+    running = true;
+    Send(Direction::Host, Message::StartOK);
+}
+
+void OpusDecoder::Main(std::stop_token stop_token) {
+    Common::SetCurrentThreadName("DSP_OpusDecoder_Main");
+
+    while (!stop_token.stop_requested()) {
+        auto msg = Receive(Direction::DSP, stop_token);
+        switch (msg) {
+        case Shutdown:
+            Send(Direction::Host, Message::ShutdownOK);
+            return;
+
+        case GetWorkBufferSize: {
+            auto channel_count = static_cast<s32>(shared_memory->host_send_data[0]);
+
+            ASSERT(IsValidChannelCount(channel_count));
+
+            shared_memory->dsp_return_data[0] = OpusDecodeObject::GetWorkBufferSize(channel_count);
+            Send(Direction::Host, Message::GetWorkBufferSizeOK);
+        } break;
+
+        case InitializeDecodeObject: {
+            auto buffer = shared_memory->host_send_data[0];
+            auto buffer_size = shared_memory->host_send_data[1];
+            auto sample_rate = static_cast<s32>(shared_memory->host_send_data[2]);
+            auto channel_count = static_cast<s32>(shared_memory->host_send_data[3]);
+
+            ASSERT(sample_rate >= 0);
+            ASSERT(IsValidChannelCount(channel_count));
+            ASSERT(buffer_size >= OpusDecodeObject::GetWorkBufferSize(channel_count));
+
+            auto& decoder_object = OpusDecodeObject::Initialize(buffer, buffer);
+            shared_memory->dsp_return_data[0] =
+                decoder_object.InitializeDecoder(sample_rate, channel_count);
+
+            Send(Direction::Host, Message::InitializeDecodeObjectOK);
+        } break;
+
+        case ShutdownDecodeObject: {
+            auto buffer = shared_memory->host_send_data[0];
+            [[maybe_unused]] auto buffer_size = shared_memory->host_send_data[1];
+
+            auto& decoder_object = OpusDecodeObject::Initialize(buffer, buffer);
+            shared_memory->dsp_return_data[0] = decoder_object.Shutdown();
+
+            Send(Direction::Host, Message::ShutdownDecodeObjectOK);
+        } break;
+
+        case DecodeInterleaved: {
+            auto start_time = system.CoreTiming().GetGlobalTimeUs();
+
+            auto buffer = shared_memory->host_send_data[0];
+            auto input_data = shared_memory->host_send_data[1];
+            auto input_data_size = shared_memory->host_send_data[2];
+            auto output_data = shared_memory->host_send_data[3];
+            auto output_data_size = shared_memory->host_send_data[4];
+            auto final_range = static_cast<u32>(shared_memory->host_send_data[5]);
+            auto reset_requested = shared_memory->host_send_data[6];
+
+            u32 decoded_samples{0};
+
+            auto& decoder_object = OpusDecodeObject::Initialize(buffer, buffer);
+            s32 error_code{OPUS_OK};
+            if (reset_requested) {
+                error_code = decoder_object.ResetDecoder();
+            }
+
+            if (error_code == OPUS_OK) {
+                error_code = decoder_object.Decode(decoded_samples, output_data, output_data_size,
+                                                   input_data, input_data_size);
+            }
+
+            if (error_code == OPUS_OK) {
+                if (final_range && decoder_object.GetFinalRange() != final_range) {
+                    error_code = OPUS_INVALID_PACKET;
+                }
+            }
+
+            auto end_time = system.CoreTiming().GetGlobalTimeUs();
+            shared_memory->dsp_return_data[0] = error_code;
+            shared_memory->dsp_return_data[1] = decoded_samples;
+            shared_memory->dsp_return_data[2] = (end_time - start_time).count();
+
+            Send(Direction::Host, Message::DecodeInterleavedOK);
+        } break;
+
+        case MapMemory: {
+            [[maybe_unused]] auto buffer = shared_memory->host_send_data[0];
+            [[maybe_unused]] auto buffer_size = shared_memory->host_send_data[1];
+            Send(Direction::Host, Message::MapMemoryOK);
+        } break;
+
+        case UnmapMemory: {
+            [[maybe_unused]] auto buffer = shared_memory->host_send_data[0];
+            [[maybe_unused]] auto buffer_size = shared_memory->host_send_data[1];
+            Send(Direction::Host, Message::UnmapMemoryOK);
+        } break;
+
+        case GetWorkBufferSizeForMultiStream: {
+            auto total_stream_count = static_cast<s32>(shared_memory->host_send_data[0]);
+            auto stereo_stream_count = static_cast<s32>(shared_memory->host_send_data[1]);
+
+            ASSERT(IsValidMultiStreamStreamCounts(total_stream_count, stereo_stream_count));
+
+            shared_memory->dsp_return_data[0] = OpusMultiStreamDecodeObject::GetWorkBufferSize(
+                total_stream_count, stereo_stream_count);
+            Send(Direction::Host, Message::GetWorkBufferSizeForMultiStreamOK);
+        } break;
+
+        case InitializeMultiStreamDecodeObject: {
+            auto buffer = shared_memory->host_send_data[0];
+            auto buffer_size = shared_memory->host_send_data[1];
+            auto sample_rate = static_cast<s32>(shared_memory->host_send_data[2]);
+            auto channel_count = static_cast<s32>(shared_memory->host_send_data[3]);
+            auto total_stream_count = static_cast<s32>(shared_memory->host_send_data[4]);
+            auto stereo_stream_count = static_cast<s32>(shared_memory->host_send_data[5]);
+            // Nintendo seem to have a bug here, they try to use &host_send_data[6] for the channel
+            // mappings, but [6] is never set, and there is not enough room in the argument data for
+            // more than 40 channels, when 255 are possible.
+            // It also means the mapping values are undefined, though likely always 0,
+            // and the mappings given by the game are ignored. The mappings are copied to this
+            // dedicated buffer host side, so let's do as intended.
+            auto mappings = shared_memory->channel_mapping.data();
+
+            ASSERT(IsValidMultiStreamStreamCounts(total_stream_count, stereo_stream_count));
+            ASSERT(sample_rate >= 0);
+            ASSERT(buffer_size >= OpusMultiStreamDecodeObject::GetWorkBufferSize(
+                                      total_stream_count, stereo_stream_count));
+
+            auto& decoder_object = OpusMultiStreamDecodeObject::Initialize(buffer, buffer);
+            shared_memory->dsp_return_data[0] = decoder_object.InitializeDecoder(
+                sample_rate, total_stream_count, channel_count, stereo_stream_count, mappings);
+
+            Send(Direction::Host, Message::InitializeMultiStreamDecodeObjectOK);
+        } break;
+
+        case ShutdownMultiStreamDecodeObject: {
+            auto buffer = shared_memory->host_send_data[0];
+            [[maybe_unused]] auto buffer_size = shared_memory->host_send_data[1];
+
+            auto& decoder_object = OpusMultiStreamDecodeObject::Initialize(buffer, buffer);
+            shared_memory->dsp_return_data[0] = decoder_object.Shutdown();
+
+            Send(Direction::Host, Message::ShutdownMultiStreamDecodeObjectOK);
+        } break;
+
+        case DecodeInterleavedForMultiStream: {
+            auto start_time = system.CoreTiming().GetGlobalTimeUs();
+
+            auto buffer = shared_memory->host_send_data[0];
+            auto input_data = shared_memory->host_send_data[1];
+            auto input_data_size = shared_memory->host_send_data[2];
+            auto output_data = shared_memory->host_send_data[3];
+            auto output_data_size = shared_memory->host_send_data[4];
+            auto final_range = static_cast<u32>(shared_memory->host_send_data[5]);
+            auto reset_requested = shared_memory->host_send_data[6];
+
+            u32 decoded_samples{0};
+
+            auto& decoder_object = OpusMultiStreamDecodeObject::Initialize(buffer, buffer);
+            s32 error_code{OPUS_OK};
+            if (reset_requested) {
+                error_code = decoder_object.ResetDecoder();
+            }
+
+            if (error_code == OPUS_OK) {
+                error_code = decoder_object.Decode(decoded_samples, output_data, output_data_size,
+                                                   input_data, input_data_size);
+            }
+
+            if (error_code == OPUS_OK) {
+                if (final_range && decoder_object.GetFinalRange() != final_range) {
+                    error_code = OPUS_INVALID_PACKET;
+                }
+            }
+
+            auto end_time = system.CoreTiming().GetGlobalTimeUs();
+            shared_memory->dsp_return_data[0] = error_code;
+            shared_memory->dsp_return_data[1] = decoded_samples;
+            shared_memory->dsp_return_data[2] = (end_time - start_time).count();
+
+            Send(Direction::Host, Message::DecodeInterleavedForMultiStreamOK);
+        } break;
+
+        default:
+            LOG_ERROR(Service_Audio, "Invalid OpusDecoder command {}", msg);
+            continue;
+        }
+    }
+}
+
+} // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/apps/opus/opus_decoder.h

@@ -0,0 +1,92 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+#include <thread>
+
+#include "audio_core/adsp/apps/opus/shared_memory.h"
+#include "audio_core/adsp/mailbox.h"
+#include "common/common_types.h"
+
+namespace Core {
+class System;
+} // namespace Core
+
+namespace AudioCore::ADSP::OpusDecoder {
+
+enum Message : u32 {
+    Invalid = 0,
+    Start = 1,
+    Shutdown = 2,
+    StartOK = 11,
+    ShutdownOK = 12,
+    GetWorkBufferSize = 21,
+    InitializeDecodeObject = 22,
+    ShutdownDecodeObject = 23,
+    DecodeInterleaved = 24,
+    MapMemory = 25,
+    UnmapMemory = 26,
+    GetWorkBufferSizeForMultiStream = 27,
+    InitializeMultiStreamDecodeObject = 28,
+    ShutdownMultiStreamDecodeObject = 29,
+    DecodeInterleavedForMultiStream = 30,
+
+    GetWorkBufferSizeOK = 41,
+    InitializeDecodeObjectOK = 42,
+    ShutdownDecodeObjectOK = 43,
+    DecodeInterleavedOK = 44,
+    MapMemoryOK = 45,
+    UnmapMemoryOK = 46,
+    GetWorkBufferSizeForMultiStreamOK = 47,
+    InitializeMultiStreamDecodeObjectOK = 48,
+    ShutdownMultiStreamDecodeObjectOK = 49,
+    DecodeInterleavedForMultiStreamOK = 50,
+};
+
+/**
+ * The AudioRenderer application running on the ADSP.
+ */
+class OpusDecoder {
+public:
+    explicit OpusDecoder(Core::System& system);
+    ~OpusDecoder();
+
+    bool IsRunning() const noexcept {
+        return running;
+    }
+
+    void Send(Direction dir, u32 message);
+    u32 Receive(Direction dir, std::stop_token stop_token = {});
+
+    void SetSharedMemory(SharedMemory& shared_memory_) {
+        shared_memory = &shared_memory_;
+    }
+
+private:
+    /**
+     * Initializing thread, launched at audio_core boot to avoid blocking the main emu boot thread.
+     */
+    void Init(std::stop_token stop_token);
+    /**
+     * Main OpusDecoder thread, responsible for processing the incoming Opus packets.
+     */
+    void Main(std::stop_token stop_token);
+
+    /// Core system
+    Core::System& system;
+    /// Mailbox to communicate messages with the host, drives the main thread
+    Mailbox mailbox;
+    /// Init thread
+    std::jthread init_thread{};
+    /// Main thread
+    std::jthread main_thread{};
+    /// The current state
+    bool running{};
+    /// Structure shared with the host, input data set by the host before sending a mailbox message,
+    /// and the responses are written back by the OpusDecoder.
+    SharedMemory* shared_memory{};
+};
+
+} // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/apps/opus/opus_multistream_decode_object.cpp

@@ -0,0 +1,111 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/adsp/apps/opus/opus_multistream_decode_object.h"
+#include "common/assert.h"
+
+namespace AudioCore::ADSP::OpusDecoder {
+
+namespace {
+bool IsValidChannelCount(u32 channel_count) {
+    return channel_count == 1 || channel_count == 2;
+}
+
+bool IsValidStreamCounts(u32 total_stream_count, u32 stereo_stream_count) {
+    return total_stream_count > 0 && stereo_stream_count > 0 &&
+           stereo_stream_count <= total_stream_count && IsValidChannelCount(total_stream_count);
+}
+} // namespace
+
+u32 OpusMultiStreamDecodeObject::GetWorkBufferSize(u32 total_stream_count,
+                                                   u32 stereo_stream_count) {
+    if (IsValidStreamCounts(total_stream_count, stereo_stream_count)) {
+        return static_cast<u32>(sizeof(OpusMultiStreamDecodeObject)) +
+               opus_multistream_decoder_get_size(total_stream_count, stereo_stream_count);
+    }
+    return 0;
+}
+
+OpusMultiStreamDecodeObject& OpusMultiStreamDecodeObject::Initialize(u64 buffer, u64 buffer2) {
+    auto* new_decoder = reinterpret_cast<OpusMultiStreamDecodeObject*>(buffer);
+    auto* comparison = reinterpret_cast<OpusMultiStreamDecodeObject*>(buffer2);
+
+    if (new_decoder->magic == DecodeMultiStreamObjectMagic) {
+        if (!new_decoder->initialized ||
+            (new_decoder->initialized && new_decoder->self == comparison)) {
+            new_decoder->state_valid = true;
+        }
+    } else {
+        new_decoder->initialized = false;
+        new_decoder->state_valid = true;
+    }
+    return *new_decoder;
+}
+
+s32 OpusMultiStreamDecodeObject::InitializeDecoder(u32 sample_rate, u32 total_stream_count,
+                                                   u32 channel_count, u32 stereo_stream_count,
+                                                   u8* mappings) {
+    if (!state_valid) {
+        return OPUS_INVALID_STATE;
+    }
+
+    if (initialized) {
+        return OPUS_OK;
+    }
+
+    // See OpusDecodeObject::InitializeDecoder for an explanation of this
+    decoder = (LibOpusMSDecoder*)(this + 1);
+    s32 ret = opus_multistream_decoder_init(decoder, sample_rate, channel_count, total_stream_count,
+                                            stereo_stream_count, mappings);
+    if (ret == OPUS_OK) {
+        magic = DecodeMultiStreamObjectMagic;
+        initialized = true;
+        state_valid = true;
+        self = this;
+        final_range = 0;
+    }
+    return ret;
+}
+
+s32 OpusMultiStreamDecodeObject::Shutdown() {
+    if (!state_valid) {
+        return OPUS_INVALID_STATE;
+    }
+
+    if (initialized) {
+        magic = 0x0;
+        initialized = false;
+        state_valid = false;
+        self = nullptr;
+        final_range = 0;
+        decoder = nullptr;
+    }
+    return OPUS_OK;
+}
+
+s32 OpusMultiStreamDecodeObject::ResetDecoder() {
+    return opus_multistream_decoder_ctl(decoder, OPUS_RESET_STATE);
+}
+
+s32 OpusMultiStreamDecodeObject::Decode(u32& out_sample_count, u64 output_data,
+                                        u64 output_data_size, u64 input_data, u64 input_data_size) {
+    ASSERT(initialized);
+    out_sample_count = 0;
+
+    if (!state_valid) {
+        return OPUS_INVALID_STATE;
+    }
+
+    auto ret_code_or_samples = opus_multistream_decode(
+        decoder, reinterpret_cast<const u8*>(input_data), static_cast<opus_int32>(input_data_size),
+        reinterpret_cast<opus_int16*>(output_data), static_cast<opus_int32>(output_data_size), 0);
+
+    if (ret_code_or_samples < OPUS_OK) {
+        return ret_code_or_samples;
+    }
+
+    out_sample_count = ret_code_or_samples;
+    return opus_multistream_decoder_ctl(decoder, OPUS_GET_FINAL_RANGE_REQUEST, &final_range);
+}
+
+} // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/apps/opus/opus_multistream_decode_object.h

@@ -0,0 +1,39 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <opus_multistream.h>
+
+#include "common/common_types.h"
+
+namespace AudioCore::ADSP::OpusDecoder {
+using LibOpusMSDecoder = ::OpusMSDecoder;
+static constexpr u32 DecodeMultiStreamObjectMagic = 0xDEADBEEF;
+
+class OpusMultiStreamDecodeObject {
+public:
+    static u32 GetWorkBufferSize(u32 total_stream_count, u32 stereo_stream_count);
+    static OpusMultiStreamDecodeObject& Initialize(u64 buffer, u64 buffer2);
+
+    s32 InitializeDecoder(u32 sample_rate, u32 total_stream_count, u32 channel_count,
+                          u32 stereo_stream_count, u8* mappings);
+    s32 Shutdown();
+    s32 ResetDecoder();
+    s32 Decode(u32& out_sample_count, u64 output_data, u64 output_data_size, u64 input_data,
+               u64 input_data_size);
+    u32 GetFinalRange() const noexcept {
+        return final_range;
+    }
+
+private:
+    u32 magic;
+    bool initialized;
+    bool state_valid;
+    OpusMultiStreamDecodeObject* self;
+    u32 final_range;
+    LibOpusMSDecoder* decoder;
+};
+static_assert(std::is_trivially_constructible_v<OpusMultiStreamDecodeObject>);
+
+} // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/apps/opus/shared_memory.h

@@ -0,0 +1,17 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+
+namespace AudioCore::ADSP::OpusDecoder {
+
+struct SharedMemory {
+    std::array<u8, 0x100> channel_mapping{};
+    std::array<u64, 16> host_send_data{};
+    std::array<u64, 16> dsp_return_data{};
+};
+
+} // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/mailbox.h

@@ -3,6 +3,8 @@
 
 #pragma once
 
+#include <span>
+
 #include "common/bounded_threadsafe_queue.h"
 #include "common/common_types.h"
 
@@ -19,11 +21,6 @@ enum class Direction : u32 {
     DSP,
 };
 
-struct MailboxMessage {
-    u32 msg;
-    std::span<u8> data;
-};
-
 class Mailbox {
 public:
     void Initialize(AppMailboxId id_) {
@@ -35,25 +32,19 @@ public:
         return id;
     }
 
-    void Send(Direction dir, MailboxMessage&& message) {
+    void Send(Direction dir, u32 message) {
         auto& queue = dir == Direction::Host ? host_queue : adsp_queue;
-        queue.EmplaceWait(std::move(message));
+        queue.EmplaceWait(message);
     }
 
-    MailboxMessage Receive(Direction dir, bool block = true) {
+    u32 Receive(Direction dir, std::stop_token stop_token = {}) {
         auto& queue = dir == Direction::Host ? host_queue : adsp_queue;
-        MailboxMessage t;
-        if (block) {
-            queue.PopWait(t);
-        } else {
-            queue.TryPop(t);
-        }
-        return t;
+        return queue.PopWait(stop_token);
     }
 
     void Reset() {
         id = AppMailboxId::Invalid;
-        MailboxMessage t;
+        u32 t{};
         while (host_queue.TryPop(t)) {
         }
         while (adsp_queue.TryPop(t)) {
@@ -62,8 +53,8 @@ public:
 
 private:
     AppMailboxId id{0};
-    Common::SPSCQueue<MailboxMessage> host_queue;
-    Common::SPSCQueue<MailboxMessage> adsp_queue;
+    Common::SPSCQueue<u32> host_queue;
+    Common::SPSCQueue<u32> adsp_queue;
 };
 
 } // namespace AudioCore::ADSP

src/audio_core/opus/decoder.cpp

@@ -0,0 +1,179 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/opus/decoder.h"
+#include "audio_core/opus/hardware_opus.h"
+#include "audio_core/opus/parameters.h"
+#include "common/alignment.h"
+#include "common/swap.h"
+#include "core/core.h"
+
+namespace AudioCore::OpusDecoder {
+using namespace Service::Audio;
+namespace {
+OpusPacketHeader ReverseHeader(OpusPacketHeader header) {
+    OpusPacketHeader out;
+    out.size = Common::swap32(header.size);
+    out.final_range = Common::swap32(header.final_range);
+    return out;
+}
+} // namespace
+
+OpusDecoder::OpusDecoder(Core::System& system_, HardwareOpus& hardware_opus_)
+    : system{system_}, hardware_opus{hardware_opus_} {}
+
+OpusDecoder::~OpusDecoder() {
+    if (decode_object_initialized) {
+        hardware_opus.ShutdownDecodeObject(shared_buffer.get(), shared_buffer_size);
+    }
+}
+
+Result OpusDecoder::Initialize(OpusParametersEx& params, Kernel::KTransferMemory* transfer_memory,
+                               u64 transfer_memory_size) {
+    auto frame_size{params.use_large_frame_size ? 5760 : 1920};
+    shared_buffer_size = transfer_memory_size;
+    shared_buffer = std::make_unique<u8[]>(shared_buffer_size);
+    shared_memory_mapped = true;
+
+    buffer_size =
+        Common::AlignUp((frame_size * params.channel_count) / (48'000 / params.sample_rate), 16);
+
+    out_data = {shared_buffer.get() + shared_buffer_size - buffer_size, buffer_size};
+    size_t in_data_size{0x600u};
+    in_data = {out_data.data() - in_data_size, in_data_size};
+
+    ON_RESULT_FAILURE {
+        if (shared_memory_mapped) {
+            shared_memory_mapped = false;
+            ASSERT(R_SUCCEEDED(hardware_opus.UnmapMemory(shared_buffer.get(), shared_buffer_size)));
+        }
+    };
+
+    R_TRY(hardware_opus.InitializeDecodeObject(params.sample_rate, params.channel_count,
+                                               shared_buffer.get(), shared_buffer_size));
+
+    sample_rate = params.sample_rate;
+    channel_count = params.channel_count;
+    use_large_frame_size = params.use_large_frame_size;
+    decode_object_initialized = true;
+    R_SUCCEED();
+}
+
+Result OpusDecoder::Initialize(OpusMultiStreamParametersEx& params,
+                               Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size) {
+    auto frame_size{params.use_large_frame_size ? 5760 : 1920};
+    shared_buffer_size = transfer_memory_size;
+    shared_buffer = std::make_unique<u8[]>(shared_buffer_size);
+    shared_memory_mapped = true;
+
+    buffer_size =
+        Common::AlignUp((frame_size * params.channel_count) / (48'000 / params.sample_rate), 16);
+
+    out_data = {shared_buffer.get() + shared_buffer_size - buffer_size, buffer_size};
+    size_t in_data_size{Common::AlignUp(1500ull * params.total_stream_count, 64u)};
+    in_data = {out_data.data() - in_data_size, in_data_size};
+
+    ON_RESULT_FAILURE {
+        if (shared_memory_mapped) {
+            shared_memory_mapped = false;
+            ASSERT(R_SUCCEEDED(hardware_opus.UnmapMemory(shared_buffer.get(), shared_buffer_size)));
+        }
+    };
+
+    R_TRY(hardware_opus.InitializeMultiStreamDecodeObject(
+        params.sample_rate, params.channel_count, params.total_stream_count,
+        params.stereo_stream_count, params.mappings.data(), shared_buffer.get(),
+        shared_buffer_size));
+
+    sample_rate = params.sample_rate;
+    channel_count = params.channel_count;
+    total_stream_count = params.total_stream_count;
+    stereo_stream_count = params.stereo_stream_count;
+    use_large_frame_size = params.use_large_frame_size;
+    decode_object_initialized = true;
+    R_SUCCEED();
+}
+
+Result OpusDecoder::DecodeInterleaved(u32* out_data_size, u64* out_time_taken,
+                                      u32* out_sample_count, std::span<const u8> input_data,
+                                      std::span<u8> output_data, bool reset) {
+    u32 out_samples;
+    u64 time_taken{};
+
+    R_UNLESS(input_data.size_bytes() > sizeof(OpusPacketHeader), ResultInputDataTooSmall);
+
+    auto* header_p{reinterpret_cast<const OpusPacketHeader*>(input_data.data())};
+    OpusPacketHeader header{ReverseHeader(*header_p)};
+
+    R_UNLESS(in_data.size_bytes() >= header.size &&
+                 header.size + sizeof(OpusPacketHeader) <= input_data.size_bytes(),
+             ResultBufferTooSmall);
+
+    if (!shared_memory_mapped) {
+        R_TRY(hardware_opus.MapMemory(shared_buffer.get(), shared_buffer_size));
+        shared_memory_mapped = true;
+    }
+
+    std::memcpy(in_data.data(), input_data.data() + sizeof(OpusPacketHeader), header.size);
+
+    R_TRY(hardware_opus.DecodeInterleaved(out_samples, out_data.data(), out_data.size_bytes(),
+                                          channel_count, in_data.data(), header.size,
+                                          shared_buffer.get(), time_taken, reset));
+
+    std::memcpy(output_data.data(), out_data.data(), out_samples * channel_count * sizeof(s16));
+
+    *out_data_size = header.size + sizeof(OpusPacketHeader);
+    *out_sample_count = out_samples;
+    if (out_time_taken) {
+        *out_time_taken = time_taken / 1000;
+    }
+    R_SUCCEED();
+}
+
+Result OpusDecoder::SetContext([[maybe_unused]] std::span<const u8> context) {
+    R_SUCCEED_IF(shared_memory_mapped);
+    shared_memory_mapped = true;
+    R_RETURN(hardware_opus.MapMemory(shared_buffer.get(), shared_buffer_size));
+}
+
+Result OpusDecoder::DecodeInterleavedForMultiStream(u32* out_data_size, u64* out_time_taken,
+                                                    u32* out_sample_count,
+                                                    std::span<const u8> input_data,
+                                                    std::span<u8> output_data, bool reset) {
+    u32 out_samples;
+    u64 time_taken{};
+
+    R_UNLESS(input_data.size_bytes() > sizeof(OpusPacketHeader), ResultInputDataTooSmall);
+
+    auto* header_p{reinterpret_cast<const OpusPacketHeader*>(input_data.data())};
+    OpusPacketHeader header{ReverseHeader(*header_p)};
+
+    LOG_ERROR(Service_Audio, "header size 0x{:X} input data size 0x{:X} in_data size 0x{:X}",
+              header.size, input_data.size_bytes(), in_data.size_bytes());
+
+    R_UNLESS(in_data.size_bytes() >= header.size &&
+                 header.size + sizeof(OpusPacketHeader) <= input_data.size_bytes(),
+             ResultBufferTooSmall);
+
+    if (!shared_memory_mapped) {
+        R_TRY(hardware_opus.MapMemory(shared_buffer.get(), shared_buffer_size));
+        shared_memory_mapped = true;
+    }
+
+    std::memcpy(in_data.data(), input_data.data() + sizeof(OpusPacketHeader), header.size);
+
+    R_TRY(hardware_opus.DecodeInterleavedForMultiStream(
+        out_samples, out_data.data(), out_data.size_bytes(), channel_count, in_data.data(),
+        header.size, shared_buffer.get(), time_taken, reset));
+
+    std::memcpy(output_data.data(), out_data.data(), out_samples * channel_count * sizeof(s16));
+
+    *out_data_size = header.size + sizeof(OpusPacketHeader);
+    *out_sample_count = out_samples;
+    if (out_time_taken) {
+        *out_time_taken = time_taken / 1000;
+    }
+    R_SUCCEED();
+}
+
+} // namespace AudioCore::OpusDecoder

src/audio_core/opus/decoder.h

@@ -0,0 +1,53 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <span>
+
+#include "audio_core/opus/parameters.h"
+#include "common/common_types.h"
+#include "core/hle/kernel/k_transfer_memory.h"
+#include "core/hle/service/audio/errors.h"
+
+namespace Core {
+class System;
+}
+
+namespace AudioCore::OpusDecoder {
+class HardwareOpus;
+
+class OpusDecoder {
+public:
+    explicit OpusDecoder(Core::System& system, HardwareOpus& hardware_opus_);
+    ~OpusDecoder();
+
+    Result Initialize(OpusParametersEx& params, Kernel::KTransferMemory* transfer_memory,
+                      u64 transfer_memory_size);
+    Result Initialize(OpusMultiStreamParametersEx& params, Kernel::KTransferMemory* transfer_memory,
+                      u64 transfer_memory_size);
+    Result DecodeInterleaved(u32* out_data_size, u64* out_time_taken, u32* out_sample_count,
+                             std::span<const u8> input_data, std::span<u8> output_data, bool reset);
+    Result SetContext([[maybe_unused]] std::span<const u8> context);
+    Result DecodeInterleavedForMultiStream(u32* out_data_size, u64* out_time_taken,
+                                           u32* out_sample_count, std::span<const u8> input_data,
+                                           std::span<u8> output_data, bool reset);
+
+private:
+    Core::System& system;
+    HardwareOpus& hardware_opus;
+    std::unique_ptr<u8[]> shared_buffer{};
+    u64 shared_buffer_size;
+    std::span<u8> in_data{};
+    std::span<u8> out_data{};
+    u64 buffer_size{};
+    s32 sample_rate{};
+    s32 channel_count{};
+    bool use_large_frame_size{false};
+    s32 total_stream_count{};
+    s32 stereo_stream_count{};
+    bool shared_memory_mapped{false};
+    bool decode_object_initialized{false};
+};
+
+} // namespace AudioCore::OpusDecoder

src/audio_core/opus/decoder_manager.cpp

@@ -0,0 +1,102 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/adsp/apps/opus/opus_decoder.h"
+#include "audio_core/opus/decoder_manager.h"
+#include "common/alignment.h"
+#include "core/core.h"
+
+namespace AudioCore::OpusDecoder {
+using namespace Service::Audio;
+
+namespace {
+bool IsValidChannelCount(u32 channel_count) {
+    return channel_count == 1 || channel_count == 2;
+}
+
+bool IsValidMultiStreamChannelCount(u32 channel_count) {
+    return channel_count > 0 && channel_count <= OpusStreamCountMax;
+}
+
+bool IsValidSampleRate(u32 sample_rate) {
+    return sample_rate == 8'000 || sample_rate == 12'000 || sample_rate == 16'000 ||
+           sample_rate == 24'000 || sample_rate == 48'000;
+}
+
+bool IsValidStreamCount(u32 channel_count, u32 total_stream_count, u32 stereo_stream_count) {
+    return total_stream_count > 0 && stereo_stream_count > 0 &&
+           stereo_stream_count <= total_stream_count &&
+           total_stream_count + stereo_stream_count <= channel_count;
+}
+
+} // namespace
+
+OpusDecoderManager::OpusDecoderManager(Core::System& system_)
+    : system{system_}, hardware_opus{system} {
+    for (u32 i = 0; i < MaxChannels; i++) {
+        required_workbuffer_sizes[i] = hardware_opus.GetWorkBufferSize(1 + i);
+    }
+}
+
+Result OpusDecoderManager::GetWorkBufferSize(OpusParameters& params, u64& out_size) {
+    OpusParametersEx ex{
+        .sample_rate = params.sample_rate,
+        .channel_count = params.channel_count,
+        .use_large_frame_size = false,
+    };
+    R_RETURN(GetWorkBufferSizeExEx(ex, out_size));
+}
+
+Result OpusDecoderManager::GetWorkBufferSizeEx(OpusParametersEx& params, u64& out_size) {
+    R_RETURN(GetWorkBufferSizeExEx(params, out_size));
+}
+
+Result OpusDecoderManager::GetWorkBufferSizeExEx(OpusParametersEx& params, u64& out_size) {
+    R_UNLESS(IsValidChannelCount(params.channel_count), ResultInvalidOpusChannelCount);
+    R_UNLESS(IsValidSampleRate(params.sample_rate), ResultInvalidOpusSampleRate);
+
+    auto work_buffer_size{required_workbuffer_sizes[params.channel_count - 1]};
+    auto frame_size{params.use_large_frame_size ? 5760 : 1920};
+    work_buffer_size +=
+        Common::AlignUp((frame_size * params.channel_count) / (48'000 / params.sample_rate), 64);
+    out_size = work_buffer_size + 0x600;
+    R_SUCCEED();
+}
+
+Result OpusDecoderManager::GetWorkBufferSizeForMultiStream(OpusMultiStreamParameters& params,
+                                                           u64& out_size) {
+    OpusMultiStreamParametersEx ex{
+        .sample_rate = params.sample_rate,
+        .channel_count = params.channel_count,
+        .total_stream_count = params.total_stream_count,
+        .stereo_stream_count = params.stereo_stream_count,
+        .use_large_frame_size = false,
+        .mappings = {},
+    };
+    R_RETURN(GetWorkBufferSizeForMultiStreamExEx(ex, out_size));
+}
+
+Result OpusDecoderManager::GetWorkBufferSizeForMultiStreamEx(OpusMultiStreamParametersEx& params,
+                                                             u64& out_size) {
+    R_RETURN(GetWorkBufferSizeForMultiStreamExEx(params, out_size));
+}
+
+Result OpusDecoderManager::GetWorkBufferSizeForMultiStreamExEx(OpusMultiStreamParametersEx& params,
+                                                               u64& out_size) {
+    R_UNLESS(IsValidMultiStreamChannelCount(params.channel_count), ResultInvalidOpusChannelCount);
+    R_UNLESS(IsValidSampleRate(params.sample_rate), ResultInvalidOpusSampleRate);
+    R_UNLESS(IsValidStreamCount(params.channel_count, params.total_stream_count,
+                                params.stereo_stream_count),
+             ResultInvalidOpusSampleRate);
+
+    auto work_buffer_size{hardware_opus.GetWorkBufferSizeForMultiStream(
+        params.total_stream_count, params.stereo_stream_count)};
+    auto frame_size{params.use_large_frame_size ? 5760 : 1920};
+    work_buffer_size += Common::AlignUp(1500 * params.total_stream_count, 64);
+    work_buffer_size +=
+        Common::AlignUp((frame_size * params.channel_count) / (48'000 / params.sample_rate), 64);
+    out_size = work_buffer_size;
+    R_SUCCEED();
+}
+
+} // namespace AudioCore::OpusDecoder

src/audio_core/opus/decoder_manager.h

@@ -0,0 +1,38 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "audio_core/opus/hardware_opus.h"
+#include "audio_core/opus/parameters.h"
+#include "common/common_types.h"
+#include "core/hle/service/audio/errors.h"
+
+namespace Core {
+class System;
+}
+
+namespace AudioCore::OpusDecoder {
+
+class OpusDecoderManager {
+public:
+    OpusDecoderManager(Core::System& system);
+
+    HardwareOpus& GetHardwareOpus() {
+        return hardware_opus;
+    }
+
+    Result GetWorkBufferSize(OpusParameters& params, u64& out_size);
+    Result GetWorkBufferSizeEx(OpusParametersEx& params, u64& out_size);
+    Result GetWorkBufferSizeExEx(OpusParametersEx& params, u64& out_size);
+    Result GetWorkBufferSizeForMultiStream(OpusMultiStreamParameters& params, u64& out_size);
+    Result GetWorkBufferSizeForMultiStreamEx(OpusMultiStreamParametersEx& params, u64& out_size);
+    Result GetWorkBufferSizeForMultiStreamExEx(OpusMultiStreamParametersEx& params, u64& out_size);
+
+private:
+    Core::System& system;
+    HardwareOpus hardware_opus;
+    std::array<u64, MaxChannels> required_workbuffer_sizes{};
+};
+
+} // namespace AudioCore::OpusDecoder

src/audio_core/opus/hardware_opus.cpp

@@ -0,0 +1,241 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <array>
+
+#include "audio_core/audio_core.h"
+#include "audio_core/opus/hardware_opus.h"
+#include "core/core.h"
+
+namespace AudioCore::OpusDecoder {
+namespace {
+using namespace Service::Audio;
+
+static constexpr Result ResultCodeFromLibOpusErrorCode(u64 error_code) {
+    s32 error{static_cast<s32>(error_code)};
+    ASSERT(error <= OPUS_OK);
+    switch (error) {
+    case OPUS_ALLOC_FAIL:
+        R_THROW(ResultLibOpusAllocFail);
+    case OPUS_INVALID_STATE:
+        R_THROW(ResultLibOpusInvalidState);
+    case OPUS_UNIMPLEMENTED:
+        R_THROW(ResultLibOpusUnimplemented);
+    case OPUS_INVALID_PACKET:
+        R_THROW(ResultLibOpusInvalidPacket);
+    case OPUS_INTERNAL_ERROR:
+        R_THROW(ResultLibOpusInternalError);
+    case OPUS_BUFFER_TOO_SMALL:
+        R_THROW(ResultBufferTooSmall);
+    case OPUS_BAD_ARG:
+        R_THROW(ResultLibOpusBadArg);
+    case OPUS_OK:
+        R_RETURN(ResultSuccess);
+    }
+    UNREACHABLE();
+}
+
+} // namespace
+
+HardwareOpus::HardwareOpus(Core::System& system_)
+    : system{system_}, opus_decoder{system.AudioCore().ADSP().OpusDecoder()} {
+    opus_decoder.SetSharedMemory(shared_memory);
+}
+
+u64 HardwareOpus::GetWorkBufferSize(u32 channel) {
+    if (!opus_decoder.IsRunning()) {
+        return 0;
+    }
+    std::scoped_lock l{mutex};
+    shared_memory.host_send_data[0] = channel;
+    opus_decoder.Send(ADSP::Direction::DSP, ADSP::OpusDecoder::Message::GetWorkBufferSize);
+    auto msg = opus_decoder.Receive(ADSP::Direction::Host);
+    if (msg != ADSP::OpusDecoder::Message::GetWorkBufferSizeOK) {
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+                  ADSP::OpusDecoder::Message::GetWorkBufferSizeOK, msg);
+        return 0;
+    }
+    return shared_memory.dsp_return_data[0];
+}
+
+u64 HardwareOpus::GetWorkBufferSizeForMultiStream(u32 total_stream_count, u32 stereo_stream_count) {
+    std::scoped_lock l{mutex};
+    shared_memory.host_send_data[0] = total_stream_count;
+    shared_memory.host_send_data[1] = stereo_stream_count;
+    opus_decoder.Send(ADSP::Direction::DSP,
+                      ADSP::OpusDecoder::Message::GetWorkBufferSizeForMultiStream);
+    auto msg = opus_decoder.Receive(ADSP::Direction::Host);
+    if (msg != ADSP::OpusDecoder::Message::GetWorkBufferSizeForMultiStreamOK) {
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+                  ADSP::OpusDecoder::Message::GetWorkBufferSizeForMultiStreamOK, msg);
+        return 0;
+    }
+    return shared_memory.dsp_return_data[0];
+}
+
+Result HardwareOpus::InitializeDecodeObject(u32 sample_rate, u32 channel_count, void* buffer,
+                                            u64 buffer_size) {
+    std::scoped_lock l{mutex};
+    shared_memory.host_send_data[0] = (u64)buffer;
+    shared_memory.host_send_data[1] = buffer_size;
+    shared_memory.host_send_data[2] = sample_rate;
+    shared_memory.host_send_data[3] = channel_count;
+
+    opus_decoder.Send(ADSP::Direction::DSP, ADSP::OpusDecoder::Message::InitializeDecodeObject);
+    auto msg = opus_decoder.Receive(ADSP::Direction::Host);
+    if (msg != ADSP::OpusDecoder::Message::InitializeDecodeObjectOK) {
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+                  ADSP::OpusDecoder::Message::InitializeDecodeObjectOK, msg);
+        R_THROW(ResultInvalidOpusDSPReturnCode);
+    }
+
+    R_RETURN(ResultCodeFromLibOpusErrorCode(shared_memory.dsp_return_data[0]));
+}
+
+Result HardwareOpus::InitializeMultiStreamDecodeObject(u32 sample_rate, u32 channel_count,
+                                                       u32 total_stream_count,
+                                                       u32 stereo_stream_count, void* mappings,
+                                                       void* buffer, u64 buffer_size) {
+    std::scoped_lock l{mutex};
+    shared_memory.host_send_data[0] = (u64)buffer;
+    shared_memory.host_send_data[1] = buffer_size;
+    shared_memory.host_send_data[2] = sample_rate;
+    shared_memory.host_send_data[3] = channel_count;
+    shared_memory.host_send_data[4] = total_stream_count;
+    shared_memory.host_send_data[5] = stereo_stream_count;
+
+    ASSERT(channel_count <= MaxChannels);
+    std::memcpy(shared_memory.channel_mapping.data(), mappings, channel_count * sizeof(u8));
+
+    opus_decoder.Send(ADSP::Direction::DSP,
+                      ADSP::OpusDecoder::Message::InitializeMultiStreamDecodeObject);
+    auto msg = opus_decoder.Receive(ADSP::Direction::Host);
+    if (msg != ADSP::OpusDecoder::Message::InitializeMultiStreamDecodeObjectOK) {
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+                  ADSP::OpusDecoder::Message::InitializeMultiStreamDecodeObjectOK, msg);
+        R_THROW(ResultInvalidOpusDSPReturnCode);
+    }
+
+    R_RETURN(ResultCodeFromLibOpusErrorCode(shared_memory.dsp_return_data[0]));
+}
+
+Result HardwareOpus::ShutdownDecodeObject(void* buffer, u64 buffer_size) {
+    std::scoped_lock l{mutex};
+    shared_memory.host_send_data[0] = (u64)buffer;
+    shared_memory.host_send_data[1] = buffer_size;
+
+    opus_decoder.Send(ADSP::Direction::DSP, ADSP::OpusDecoder::Message::ShutdownDecodeObject);
+    auto msg = opus_decoder.Receive(ADSP::Direction::Host);
+    ASSERT_MSG(msg == ADSP::OpusDecoder::Message::ShutdownDecodeObjectOK,
+               "Expected Opus shutdown code {}, got {}",
+               ADSP::OpusDecoder::Message::ShutdownDecodeObjectOK, msg);
+
+    R_RETURN(ResultCodeFromLibOpusErrorCode(shared_memory.dsp_return_data[0]));
+}
+
+Result HardwareOpus::ShutdownMultiStreamDecodeObject(void* buffer, u64 buffer_size) {
+    std::scoped_lock l{mutex};
+    shared_memory.host_send_data[0] = (u64)buffer;
+    shared_memory.host_send_data[1] = buffer_size;
+
+    opus_decoder.Send(ADSP::Direction::DSP,
+                      ADSP::OpusDecoder::Message::ShutdownMultiStreamDecodeObject);
+    auto msg = opus_decoder.Receive(ADSP::Direction::Host);
+    ASSERT_MSG(msg == ADSP::OpusDecoder::Message::ShutdownMultiStreamDecodeObjectOK,
+               "Expected Opus shutdown code {}, got {}",
+               ADSP::OpusDecoder::Message::ShutdownMultiStreamDecodeObjectOK, msg);
+
+    R_RETURN(ResultCodeFromLibOpusErrorCode(shared_memory.dsp_return_data[0]));
+}
+
+Result HardwareOpus::DecodeInterleaved(u32& out_sample_count, void* output_data,
+                                       u64 output_data_size, u32 channel_count, void* input_data,
+                                       u64 input_data_size, void* buffer, u64& out_time_taken,
+                                       bool reset) {
+    std::scoped_lock l{mutex};
+    shared_memory.host_send_data[0] = (u64)buffer;
+    shared_memory.host_send_data[1] = (u64)input_data;
+    shared_memory.host_send_data[2] = input_data_size;
+    shared_memory.host_send_data[3] = (u64)output_data;
+    shared_memory.host_send_data[4] = output_data_size;
+    shared_memory.host_send_data[5] = 0;
+    shared_memory.host_send_data[6] = reset;
+
+    opus_decoder.Send(ADSP::Direction::DSP, ADSP::OpusDecoder::Message::DecodeInterleaved);
+    auto msg = opus_decoder.Receive(ADSP::Direction::Host);
+    if (msg != ADSP::OpusDecoder::Message::DecodeInterleavedOK) {
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+                  ADSP::OpusDecoder::Message::DecodeInterleavedOK, msg);
+        R_THROW(ResultInvalidOpusDSPReturnCode);
+    }
+
+    auto error_code{static_cast<s32>(shared_memory.dsp_return_data[0])};
+    if (error_code == OPUS_OK) {
+        out_sample_count = static_cast<u32>(shared_memory.dsp_return_data[1]);
+        out_time_taken = 1000 * shared_memory.dsp_return_data[2];
+    }
+    R_RETURN(ResultCodeFromLibOpusErrorCode(error_code));
+}
+
+Result HardwareOpus::DecodeInterleavedForMultiStream(u32& out_sample_count, void* output_data,
+                                                     u64 output_data_size, u32 channel_count,
+                                                     void* input_data, u64 input_data_size,
+                                                     void* buffer, u64& out_time_taken,
+                                                     bool reset) {
+    std::scoped_lock l{mutex};
+    shared_memory.host_send_data[0] = (u64)buffer;
+    shared_memory.host_send_data[1] = (u64)input_data;
+    shared_memory.host_send_data[2] = input_data_size;
+    shared_memory.host_send_data[3] = (u64)output_data;
+    shared_memory.host_send_data[4] = output_data_size;
+    shared_memory.host_send_data[5] = 0;
+    shared_memory.host_send_data[6] = reset;
+
+    opus_decoder.Send(ADSP::Direction::DSP,
+                      ADSP::OpusDecoder::Message::DecodeInterleavedForMultiStream);
+    auto msg = opus_decoder.Receive(ADSP::Direction::Host);
+    if (msg != ADSP::OpusDecoder::Message::DecodeInterleavedForMultiStreamOK) {
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+                  ADSP::OpusDecoder::Message::DecodeInterleavedForMultiStreamOK, msg);
+        R_THROW(ResultInvalidOpusDSPReturnCode);
+    }
+
+    auto error_code{static_cast<s32>(shared_memory.dsp_return_data[0])};
+    if (error_code == OPUS_OK) {
+        out_sample_count = static_cast<u32>(shared_memory.dsp_return_data[1]);
+        out_time_taken = 1000 * shared_memory.dsp_return_data[2];
+    }
+    R_RETURN(ResultCodeFromLibOpusErrorCode(error_code));
+}
+
+Result HardwareOpus::MapMemory(void* buffer, u64 buffer_size) {
+    std::scoped_lock l{mutex};
+    shared_memory.host_send_data[0] = (u64)buffer;
+    shared_memory.host_send_data[1] = buffer_size;
+
+    opus_decoder.Send(ADSP::Direction::DSP, ADSP::OpusDecoder::Message::MapMemory);
+    auto msg = opus_decoder.Receive(ADSP::Direction::Host);
+    if (msg != ADSP::OpusDecoder::Message::MapMemoryOK) {
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+                  ADSP::OpusDecoder::Message::MapMemoryOK, msg);
+        R_THROW(ResultInvalidOpusDSPReturnCode);
+    }
+    R_SUCCEED();
+}
+
+Result HardwareOpus::UnmapMemory(void* buffer, u64 buffer_size) {
+    std::scoped_lock l{mutex};
+    shared_memory.host_send_data[0] = (u64)buffer;
+    shared_memory.host_send_data[1] = buffer_size;
+
+    opus_decoder.Send(ADSP::Direction::DSP, ADSP::OpusDecoder::Message::UnmapMemory);
+    auto msg = opus_decoder.Receive(ADSP::Direction::Host);
+    if (msg != ADSP::OpusDecoder::Message::UnmapMemoryOK) {
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+                  ADSP::OpusDecoder::Message::UnmapMemoryOK, msg);
+        R_THROW(ResultInvalidOpusDSPReturnCode);
+    }
+    R_SUCCEED();
+}
+
+} // namespace AudioCore::OpusDecoder

src/audio_core/opus/hardware_opus.h

@@ -0,0 +1,45 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+#include <opus.h>
+
+#include "audio_core/adsp/apps/opus/opus_decoder.h"
+#include "audio_core/adsp/apps/opus/shared_memory.h"
+#include "audio_core/adsp/mailbox.h"
+#include "core/hle/service/audio/errors.h"
+
+namespace AudioCore::OpusDecoder {
+class HardwareOpus {
+public:
+    HardwareOpus(Core::System& system);
+
+    u64 GetWorkBufferSize(u32 channel);
+    u64 GetWorkBufferSizeForMultiStream(u32 total_stream_count, u32 stereo_stream_count);
+
+    Result InitializeDecodeObject(u32 sample_rate, u32 channel_count, void* buffer,
+                                  u64 buffer_size);
+    Result InitializeMultiStreamDecodeObject(u32 sample_rate, u32 channel_count,
+                                             u32 totaL_stream_count, u32 stereo_stream_count,
+                                             void* mappings, void* buffer, u64 buffer_size);
+    Result ShutdownDecodeObject(void* buffer, u64 buffer_size);
+    Result ShutdownMultiStreamDecodeObject(void* buffer, u64 buffer_size);
+    Result DecodeInterleaved(u32& out_sample_count, void* output_data, u64 output_data_size,
+                             u32 channel_count, void* input_data, u64 input_data_size, void* buffer,
+                             u64& out_time_taken, bool reset);
+    Result DecodeInterleavedForMultiStream(u32& out_sample_count, void* output_data,
+                                           u64 output_data_size, u32 channel_count,
+                                           void* input_data, u64 input_data_size, void* buffer,
+                                           u64& out_time_taken, bool reset);
+    Result MapMemory(void* buffer, u64 buffer_size);
+    Result UnmapMemory(void* buffer, u64 buffer_size);
+
+private:
+    Core::System& system;
+    std::mutex mutex;
+    ADSP::OpusDecoder::OpusDecoder& opus_decoder;
+    ADSP::OpusDecoder::SharedMemory shared_memory;
+};
+} // namespace AudioCore::OpusDecoder

src/audio_core/opus/parameters.h

@@ -0,0 +1,54 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+
+namespace AudioCore::OpusDecoder {
+constexpr size_t OpusStreamCountMax = 255;
+constexpr size_t MaxChannels = 2;
+
+struct OpusParameters {
+    /* 0x00 */ u32 sample_rate;
+    /* 0x04 */ u32 channel_count;
+}; // size = 0x8
+static_assert(sizeof(OpusParameters) == 0x8, "OpusParameters has the wrong size!");
+
+struct OpusParametersEx {
+    /* 0x00 */ u32 sample_rate;
+    /* 0x04 */ u32 channel_count;
+    /* 0x08 */ bool use_large_frame_size;
+    /* 0x09 */ INSERT_PADDING_BYTES(7);
+}; // size = 0x10
+static_assert(sizeof(OpusParametersEx) == 0x10, "OpusParametersEx has the wrong size!");
+
+struct OpusMultiStreamParameters {
+    /* 0x00 */ u32 sample_rate;
+    /* 0x04 */ u32 channel_count;
+    /* 0x08 */ u32 total_stream_count;
+    /* 0x0C */ u32 stereo_stream_count;
+    /* 0x10 */ std::array<u8, OpusStreamCountMax + 1> mappings;
+}; // size = 0x110
+static_assert(sizeof(OpusMultiStreamParameters) == 0x110,
+              "OpusMultiStreamParameters has the wrong size!");
+
+struct OpusMultiStreamParametersEx {
+    /* 0x00 */ u32 sample_rate;
+    /* 0x04 */ u32 channel_count;
+    /* 0x08 */ u32 total_stream_count;
+    /* 0x0C */ u32 stereo_stream_count;
+    /* 0x10 */ bool use_large_frame_size;
+    /* 0x11 */ INSERT_PADDING_BYTES(7);
+    /* 0x18 */ std::array<u8, OpusStreamCountMax + 1> mappings;
+}; // size = 0x118
+static_assert(sizeof(OpusMultiStreamParametersEx) == 0x118,
+              "OpusMultiStreamParametersEx has the wrong size!");
+
+struct OpusPacketHeader {
+    /* 0x00 */ u32 size;
+    /* 0x04 */ u32 final_range;
+}; // size = 0x8
+static_assert(sizeof(OpusPacketHeader) == 0x8, "OpusPacketHeader has the wrong size!");
+} // namespace AudioCore::OpusDecoder

src/audio_core/renderer/command/command_processing_time_estimator.cpp

@@ -27,12 +27,12 @@ u32 CommandProcessingTimeEstimatorVersion1::Estimate(
 
 u32 CommandProcessingTimeEstimatorVersion1::Estimate(
     const AdpcmDataSourceVersion1Command& command) const {
-    return static_cast<u32>(command.pitch * 0.25f * 1.2f);
+    return static_cast<u32>(command.pitch * 0.46f * 1.2f);
 }
 
 u32 CommandProcessingTimeEstimatorVersion1::Estimate(
     const AdpcmDataSourceVersion2Command& command) const {
-    return static_cast<u32>(command.pitch * 0.25f * 1.2f);
+    return static_cast<u32>(command.pitch * 0.46f * 1.2f);
 }
 
 u32 CommandProcessingTimeEstimatorVersion1::Estimate(

src/audio_core/renderer/system.cpp

@@ -684,11 +684,11 @@ u64 System::GenerateCommand(std::span<u8> in_command_buffer,
                                        sink_context,   splitter_context,     perf_manager};
 
     voice_context.SortInfo();
+    command_generator.GenerateVoiceCommands();
 
     const auto start_estimated_time{drop_voice_param *
                                     static_cast<f32>(command_buffer.estimated_process_time)};
 
-    command_generator.GenerateVoiceCommands();
     command_generator.GenerateSubMixCommands();
     command_generator.GenerateFinalMixCommands();
     command_generator.GenerateSinkCommands();
@@ -708,11 +708,13 @@ u64 System::GenerateCommand(std::span<u8> in_command_buffer,
 
         const auto end_estimated_time{drop_voice_param *
                                       static_cast<f32>(command_buffer.estimated_process_time)};
+
+        const auto dsp_time_limit{((time_limit_percent / 100.0f) * 2'880'000.0f) *
+                                  (static_cast<f32>(render_time_limit_percent) / 100.0f)};
+
         const auto estimated_time{start_estimated_time - end_estimated_time};
 
-        const auto time_limit{static_cast<u32>(
-            estimated_time + (((time_limit_percent / 100.0f) * 2'880'000.0) *
-                              (static_cast<f32>(render_time_limit_percent) / 100.0f)))};
+        const auto time_limit{static_cast<u32>(std::max(dsp_time_limit + estimated_time, 0.0f))};
         num_voices_dropped =
             DropVoices(command_buffer, static_cast<u32>(start_estimated_time), time_limit);
     }

src/common/CMakeLists.txt

@@ -26,12 +26,11 @@ add_library(common STATIC
     assert.h
     atomic_helpers.h
     atomic_ops.h
-    detached_tasks.cpp
-    detached_tasks.h
     bit_cast.h
     bit_field.h
     bit_set.h
     bit_util.h
+    bounded_threadsafe_queue.h
     cityhash.cpp
     cityhash.h
     common_funcs.h
@@ -41,6 +40,8 @@ add_library(common STATIC
     container_hash.h
     demangle.cpp
     demangle.h
+    detached_tasks.cpp
+    detached_tasks.h
     div_ceil.h
     dynamic_library.cpp
     dynamic_library.h

src/common/bounded_threadsafe_queue.h

@@ -45,13 +45,13 @@ public:
     }
 
     T PopWait() {
-        T t;
+        T t{};
         Pop<PopMode::Wait>(t);
         return t;
     }
 
     T PopWait(std::stop_token stop_token) {
-        T t;
+        T t{};
         Pop<PopMode::WaitWithStopToken>(t, stop_token);
         return t;
     }

src/common/settings.cpp

@@ -130,13 +130,17 @@ void LogSettings() {
     log_path("DataStorage_SDMCDir", Common::FS::GetYuzuPath(Common::FS::YuzuPath::SDMCDir));
 }
 
+void UpdateGPUAccuracy() {
+    values.current_gpu_accuracy = values.gpu_accuracy.GetValue();
+}
+
 bool IsGPULevelExtreme() {
-    return values.gpu_accuracy.GetValue() == GpuAccuracy::Extreme;
+    return values.current_gpu_accuracy == GpuAccuracy::Extreme;
 }
 
 bool IsGPULevelHigh() {
-    return values.gpu_accuracy.GetValue() == GpuAccuracy::Extreme ||
-           values.gpu_accuracy.GetValue() == GpuAccuracy::High;
+    return values.current_gpu_accuracy == GpuAccuracy::Extreme ||
+           values.current_gpu_accuracy == GpuAccuracy::High;
 }
 
 bool IsFastmemEnabled() {

src/common/settings.h

@@ -307,6 +307,7 @@ struct Values {
                                                       Specialization::Default,
                                                       true,
                                                       true};
+    GpuAccuracy current_gpu_accuracy{GpuAccuracy::High};
     SwitchableSetting<AnisotropyMode, true> max_anisotropy{
         linkage,          AnisotropyMode::Automatic, AnisotropyMode::Automatic, AnisotropyMode::X16,
         "max_anisotropy", Category::RendererAdvanced};
@@ -350,6 +351,8 @@ struct Values {
         linkage, false, "disable_shader_loop_safety_checks", Category::RendererDebug};
     Setting<bool> enable_renderdoc_hotkey{linkage, false, "renderdoc_hotkey",
                                           Category::RendererDebug};
+    // TODO: remove this once AMDVLK supports VK_EXT_depth_bias_control
+    bool renderer_amdvlk_depth_bias_workaround{};
 
     // System
     SwitchableSetting<Language, true> language_index{linkage,
@@ -522,6 +525,7 @@ struct Values {
 
 extern Values values;
 
+void UpdateGPUAccuracy();
 bool IsGPULevelExtreme();
 bool IsGPULevelHigh();
 

src/common/settings_setting.h

@@ -187,6 +187,8 @@ public:
                 this->SetValue(input == "true");
             } else if constexpr (std::is_same_v<Type, float>) {
                 this->SetValue(std::stof(input));
+            } else if constexpr (std::is_same_v<Type, AudioEngine>) {
+                this->SetValue(ToEnum<AudioEngine>(input));
             } else {
                 this->SetValue(static_cast<Type>(std::stoll(input)));
             }

src/core/CMakeLists.txt

@@ -596,6 +596,10 @@ add_library(core STATIC
     hle/service/mii/types/ver3_store_data.h
     hle/service/mii/mii.cpp
     hle/service/mii/mii.h
+    hle/service/mii/mii_database.cpp
+    hle/service/mii/mii_database.h
+    hle/service/mii/mii_database_manager.cpp
+    hle/service/mii/mii_database_manager.h
     hle/service/mii/mii_manager.cpp
     hle/service/mii/mii_manager.h
     hle/service/mii/mii_result.h
@@ -890,7 +894,7 @@ endif()
 create_target_directory_groups(core)
 
 target_link_libraries(core PUBLIC common PRIVATE audio_core network video_core nx_tzdb)
-target_link_libraries(core PUBLIC Boost::headers PRIVATE fmt::fmt nlohmann_json::nlohmann_json mbedtls Opus::opus renderdoc)
+target_link_libraries(core PUBLIC Boost::headers PRIVATE fmt::fmt nlohmann_json::nlohmann_json mbedtls RenderDoc::API)
 if (MINGW)
     target_link_libraries(core PRIVATE ${MSWSOCK_LIBRARY})
 endif()

src/core/core.cpp

@@ -381,6 +381,10 @@ struct System::Impl {
             room_member->SendGameInfo(game_info);
         }
 
+        // Workarounds:
+        // Activate this in Super Smash Brothers Ultimate, it only affects AMD cards using AMDVLK
+        Settings::values.renderer_amdvlk_depth_bias_workaround = program_id == 0x1006A800016E000ULL;
+
         status = SystemResultStatus::Success;
         return status;
     }
@@ -440,6 +444,9 @@ struct System::Impl {
             room_member->SendGameInfo(game_info);
         }
 
+        // Workarounds
+        Settings::values.renderer_amdvlk_depth_bias_workaround = false;
+
         LOG_DEBUG(Core, "Shutdown OK");
     }
 

src/core/core_timing.cpp

@@ -32,6 +32,7 @@ struct CoreTiming::Event {
     std::uintptr_t user_data;
     std::weak_ptr<EventType> type;
     s64 reschedule_time;
+    heap_t::handle_type handle{};
 
     // Sort by time, unless the times are the same, in which case sort by
     // the order added to the queue
@@ -122,9 +123,9 @@ void CoreTiming::ScheduleEvent(std::chrono::nanoseconds ns_into_future,
         std::scoped_lock scope{basic_lock};
         const auto next_time{absolute_time ? ns_into_future : GetGlobalTimeNs() + ns_into_future};
 
-        event_queue.emplace_back(
-            Event{next_time.count(), event_fifo_id++, user_data, event_type, 0});
-        std::push_heap(event_queue.begin(), event_queue.end(), std::greater<>());
+        auto h{event_queue.emplace(
+            Event{next_time.count(), event_fifo_id++, user_data, event_type, 0})};
+        (*h).handle = h;
     }
 
     event.Set();
@@ -138,10 +139,9 @@ void CoreTiming::ScheduleLoopingEvent(std::chrono::nanoseconds start_time,
         std::scoped_lock scope{basic_lock};
         const auto next_time{absolute_time ? start_time : GetGlobalTimeNs() + start_time};
 
-        event_queue.emplace_back(
-            Event{next_time.count(), event_fifo_id++, user_data, event_type, resched_time.count()});
-
-        std::push_heap(event_queue.begin(), event_queue.end(), std::greater<>());
+        auto h{event_queue.emplace(Event{next_time.count(), event_fifo_id++, user_data, event_type,
+                                         resched_time.count()})};
+        (*h).handle = h;
     }
 
     event.Set();
@@ -151,15 +151,17 @@ void CoreTiming::UnscheduleEvent(const std::shared_ptr<EventType>& event_type,
                                  std::uintptr_t user_data, bool wait) {
     {
         std::scoped_lock lk{basic_lock};
-        const auto itr =
-            std::remove_if(event_queue.begin(), event_queue.end(), [&](const Event& e) {
-                return e.type.lock().get() == event_type.get() && e.user_data == user_data;
-            });
 
-        // Removing random items breaks the invariant so we have to re-establish it.
-        if (itr != event_queue.end()) {
-            event_queue.erase(itr, event_queue.end());
-            std::make_heap(event_queue.begin(), event_queue.end(), std::greater<>());
+        std::vector<heap_t::handle_type> to_remove;
+        for (auto itr = event_queue.begin(); itr != event_queue.end(); itr++) {
+            const Event& e = *itr;
+            if (e.type.lock().get() == event_type.get() && e.user_data == user_data) {
+                to_remove.push_back(itr->handle);
+            }
+        }
+
+        for (auto h : to_remove) {
+            event_queue.erase(h);
         }
     }
 
@@ -200,35 +202,45 @@ std::optional<s64> CoreTiming::Advance() {
     std::scoped_lock lock{advance_lock, basic_lock};
     global_timer = GetGlobalTimeNs().count();
 
-    while (!event_queue.empty() && event_queue.front().time <= global_timer) {
-        Event evt = std::move(event_queue.front());
-        std::pop_heap(event_queue.begin(), event_queue.end(), std::greater<>());
-        event_queue.pop_back();
+    while (!event_queue.empty() && event_queue.top().time <= global_timer) {
+        const Event& evt = event_queue.top();
 
         if (const auto event_type{evt.type.lock()}) {
-            basic_lock.unlock();
+            if (evt.reschedule_time == 0) {
+                const auto evt_user_data = evt.user_data;
+                const auto evt_time = evt.time;
 
-            const auto new_schedule_time{event_type->callback(
-                evt.user_data, evt.time,
-                std::chrono::nanoseconds{GetGlobalTimeNs().count() - evt.time})};
+                event_queue.pop();
 
-            basic_lock.lock();
+                basic_lock.unlock();
+
+                event_type->callback(
+                    evt_user_data, evt_time,
+                    std::chrono::nanoseconds{GetGlobalTimeNs().count() - evt_time});
+
+                basic_lock.lock();
+            } else {
+                basic_lock.unlock();
+
+                const auto new_schedule_time{event_type->callback(
+                    evt.user_data, evt.time,
+                    std::chrono::nanoseconds{GetGlobalTimeNs().count() - evt.time})};
+
+                basic_lock.lock();
 
-            if (evt.reschedule_time != 0) {
                 const auto next_schedule_time{new_schedule_time.has_value()
                                                   ? new_schedule_time.value().count()
                                                   : evt.reschedule_time};
 
-                // If this event was scheduled into a pause, its time now is going to be way behind.
-                // Re-set this event to continue from the end of the pause.
+                // If this event was scheduled into a pause, its time now is going to be way
+                // behind. Re-set this event to continue from the end of the pause.
                 auto next_time{evt.time + next_schedule_time};
                 if (evt.time < pause_end_time) {
                     next_time = pause_end_time + next_schedule_time;
                 }
 
-                event_queue.emplace_back(
-                    Event{next_time, event_fifo_id++, evt.user_data, evt.type, next_schedule_time});
-                std::push_heap(event_queue.begin(), event_queue.end(), std::greater<>());
+                event_queue.update(evt.handle, Event{next_time, event_fifo_id++, evt.user_data,
+                                                     evt.type, next_schedule_time, evt.handle});
             }
         }
 
@@ -236,7 +248,7 @@ std::optional<s64> CoreTiming::Advance() {
     }
 
     if (!event_queue.empty()) {
-        return event_queue.front().time;
+        return event_queue.top().time;
     } else {
         return std::nullopt;
     }
@@ -274,7 +286,8 @@ void CoreTiming::ThreadLoop() {
 #endif
                 }
             } else {
-                // Queue is empty, wait until another event is scheduled and signals us to continue.
+                // Queue is empty, wait until another event is scheduled and signals us to
+                // continue.
                 wait_set = true;
                 event.Wait();
             }

src/core/core_timing.h

@@ -11,7 +11,8 @@
 #include <optional>
 #include <string>
 #include <thread>
-#include <vector>
+
+#include <boost/heap/fibonacci_heap.hpp>
 
 #include "common/common_types.h"
 #include "common/thread.h"
@@ -151,11 +152,10 @@ private:
     s64 timer_resolution_ns;
 #endif
 
-    // The queue is a min-heap using std::make_heap/push_heap/pop_heap.
-    // We don't use std::priority_queue because we need to be able to serialize, unserialize and
-    // erase arbitrary events (RemoveEvent()) regardless of the queue order. These aren't
-    // accommodated by the standard adaptor class.
-    std::vector<Event> event_queue;
+    using heap_t =
+        boost::heap::fibonacci_heap<CoreTiming::Event, boost::heap::compare<std::greater<>>>;
+
+    heap_t event_queue;
     u64 event_fifo_id = 0;
 
     std::shared_ptr<EventType> ev_lost;

src/core/file_sys/partition_filesystem.cpp

@@ -47,6 +47,7 @@ PartitionFilesystem::PartitionFilesystem(VirtualFile file) {
     // Actually read in now...
     std::vector<u8> file_data = file->ReadBytes(metadata_size);
     const std::size_t total_size = file_data.size();
+    file_data.push_back(0);
 
     if (total_size != metadata_size) {
         status = Loader::ResultStatus::ErrorIncorrectPFSFileSize;

src/core/file_sys/registered_cache.cpp

@@ -752,7 +752,9 @@ bool RegisteredCache::RemoveExistingEntry(u64 title_id) const {
     for (u8 i = 0; i < 0x10; i++) {
         const auto meta_dir = dir->CreateDirectoryRelative("yuzu_meta");
         const auto filename = GetCNMTName(TitleType::Update, title_id + i);
-        removed_data |= meta_dir->DeleteFile(filename);
+        if (meta_dir->GetFile(filename)) {
+            removed_data |= meta_dir->DeleteFile(filename);
+        }
     }
 
     return removed_data;

src/core/hid/emulated_controller.cpp

@@ -542,6 +542,7 @@ void EmulatedController::UnloadInput() {
 }
 
 void EmulatedController::EnableConfiguration() {
+    std::scoped_lock lock{connect_mutex, npad_mutex};
     is_configuring = true;
     tmp_is_connected = is_connected;
     tmp_npad_type = npad_type;
@@ -1556,7 +1557,7 @@ void EmulatedController::Connect(bool use_temporary_value) {
 
     auto trigger_guard =
         SCOPE_GUARD({ TriggerOnChange(ControllerTriggerType::Connected, !is_configuring); });
-    std::scoped_lock lock{mutex};
+    std::scoped_lock lock{connect_mutex, mutex};
     if (is_configuring) {
         tmp_is_connected = true;
         return;
@@ -1572,7 +1573,7 @@ void EmulatedController::Connect(bool use_temporary_value) {
 void EmulatedController::Disconnect() {
     auto trigger_guard =
         SCOPE_GUARD({ TriggerOnChange(ControllerTriggerType::Disconnected, !is_configuring); });
-    std::scoped_lock lock{mutex};
+    std::scoped_lock lock{connect_mutex, mutex};
     if (is_configuring) {
         tmp_is_connected = false;
         return;
@@ -1586,7 +1587,7 @@ void EmulatedController::Disconnect() {
 }
 
 bool EmulatedController::IsConnected(bool get_temporary_value) const {
-    std::scoped_lock lock{mutex};
+    std::scoped_lock lock{connect_mutex};
     if (get_temporary_value && is_configuring) {
         return tmp_is_connected;
     }
@@ -1599,7 +1600,7 @@ NpadIdType EmulatedController::GetNpadIdType() const {
 }
 
 NpadStyleIndex EmulatedController::GetNpadStyleIndex(bool get_temporary_value) const {
-    std::scoped_lock lock{mutex};
+    std::scoped_lock lock{npad_mutex};
     if (get_temporary_value && is_configuring) {
         return tmp_npad_type;
     }
@@ -1609,7 +1610,7 @@ NpadStyleIndex EmulatedController::GetNpadStyleIndex(bool get_temporary_value) c
 void EmulatedController::SetNpadStyleIndex(NpadStyleIndex npad_type_) {
     auto trigger_guard =
         SCOPE_GUARD({ TriggerOnChange(ControllerTriggerType::Type, !is_configuring); });
-    std::scoped_lock lock{mutex};
+    std::scoped_lock lock{mutex, npad_mutex};
 
     if (is_configuring) {
         if (tmp_npad_type == npad_type_) {

src/core/hid/emulated_controller.h

@@ -603,6 +603,8 @@ private:
 
     mutable std::mutex mutex;
     mutable std::mutex callback_mutex;
+    mutable std::mutex npad_mutex;
+    mutable std::mutex connect_mutex;
     std::unordered_map<int, ControllerUpdateCallback> callback_list;
     int last_callback_key = 0;
 

src/core/hle/kernel/k_hardware_timer.cpp

@@ -35,7 +35,9 @@ void KHardwareTimer::DoTask() {
         }
 
         // Disable the timer interrupt while we handle this.
-        this->DisableInterrupt();
+        // Not necessary due to core timing already having popped this event to call it.
+        // this->DisableInterrupt();
+        m_wakeup_time = std::numeric_limits<s64>::max();
 
         if (const s64 next_time = this->DoInterruptTaskImpl(GetTick());
             0 < next_time && next_time <= m_wakeup_time) {

src/core/hle/result.h

@@ -62,7 +62,7 @@ enum class ErrorModule : u32 {
     XCD = 108,
     TMP451 = 109,
     NIFM = 110,
-    Hwopus = 111,
+    HwOpus = 111,
     LSM6DS3 = 112,
     Bluetooth = 113,
     VI = 114,

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

@@ -19,6 +19,7 @@
 #include "core/hle/service/am/am.h"
 #include "core/hle/service/am/applet_ae.h"
 #include "core/hle/service/am/applet_oe.h"
+#include "core/hle/service/am/applets/applet_mii_edit_types.h"
 #include "core/hle/service/am/applets/applet_profile_select.h"
 #include "core/hle/service/am/applets/applet_web_browser.h"
 #include "core/hle/service/am/applets/applets.h"
@@ -190,7 +191,7 @@ IDisplayController::IDisplayController(Core::System& system_)
         {5, nullptr, "GetLastForegroundCaptureImageEx"},
         {6, nullptr, "GetLastApplicationCaptureImageEx"},
         {7, nullptr, "GetCallerAppletCaptureImageEx"},
-        {8, nullptr, "TakeScreenShotOfOwnLayer"},
+        {8, &IDisplayController::TakeScreenShotOfOwnLayer, "TakeScreenShotOfOwnLayer"},
         {9, nullptr, "CopyBetweenCaptureBuffers"},
         {10, nullptr, "AcquireLastApplicationCaptureBuffer"},
         {11, nullptr, "ReleaseLastApplicationCaptureBuffer"},
@@ -218,6 +219,13 @@ IDisplayController::IDisplayController(Core::System& system_)
 
 IDisplayController::~IDisplayController() = default;
 
+void IDisplayController::TakeScreenShotOfOwnLayer(HLERequestContext& ctx) {
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
 IDebugFunctions::IDebugFunctions(Core::System& system_)
     : ServiceFramework{system_, "IDebugFunctions"} {
     // clang-format off
@@ -724,7 +732,7 @@ ICommonStateGetter::ICommonStateGetter(Core::System& system_,
         {110, nullptr, "OpenMyGpuErrorHandler"},
         {120, nullptr, "GetAppletLaunchedHistory"},
         {200, nullptr, "GetOperationModeSystemInfo"},
-        {300, nullptr, "GetSettingsPlatformRegion"},
+        {300, &ICommonStateGetter::GetSettingsPlatformRegion, "GetSettingsPlatformRegion"},
         {400, nullptr, "ActivateMigrationService"},
         {401, nullptr, "DeactivateMigrationService"},
         {500, nullptr, "DisableSleepTillShutdown"},
@@ -736,6 +744,10 @@ ICommonStateGetter::ICommonStateGetter(Core::System& system_,
     // clang-format on
 
     RegisterHandlers(functions);
+
+    // Configure applets to be in foreground state
+    msg_queue->PushMessage(AppletMessageQueue::AppletMessage::FocusStateChanged);
+    msg_queue->PushMessage(AppletMessageQueue::AppletMessage::ChangeIntoForeground);
 }
 
 ICommonStateGetter::~ICommonStateGetter() = default;
@@ -867,6 +879,14 @@ void ICommonStateGetter::PerformSystemButtonPressingIfInFocus(HLERequestContext&
     rb.Push(ResultSuccess);
 }
 
+void ICommonStateGetter::GetSettingsPlatformRegion(HLERequestContext& ctx) {
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.PushEnum(SysPlatformRegion::Global);
+}
+
 void ICommonStateGetter::SetRequestExitToLibraryAppletAtExecuteNextProgramEnabled(
     HLERequestContext& ctx) {
     LOG_WARNING(Service_AM, "(STUBBED) called");
@@ -1324,18 +1344,19 @@ void ILibraryAppletCreator::CreateHandleStorage(HLERequestContext& ctx) {
 
 ILibraryAppletSelfAccessor::ILibraryAppletSelfAccessor(Core::System& system_)
     : ServiceFramework{system_, "ILibraryAppletSelfAccessor"} {
+    // clang-format off
     static const FunctionInfo functions[] = {
-        {0, nullptr, "PopInData"},
-        {1, nullptr, "PushOutData"},
+        {0, &ILibraryAppletSelfAccessor::PopInData, "PopInData"},
+        {1, &ILibraryAppletSelfAccessor::PushOutData, "PushOutData"},
         {2, nullptr, "PopInteractiveInData"},
         {3, nullptr, "PushInteractiveOutData"},
         {5, nullptr, "GetPopInDataEvent"},
         {6, nullptr, "GetPopInteractiveInDataEvent"},
-        {10, nullptr, "ExitProcessAndReturn"},
-        {11, nullptr, "GetLibraryAppletInfo"},
+        {10, &ILibraryAppletSelfAccessor::ExitProcessAndReturn, "ExitProcessAndReturn"},
+        {11, &ILibraryAppletSelfAccessor::GetLibraryAppletInfo, "GetLibraryAppletInfo"},
         {12, nullptr, "GetMainAppletIdentityInfo"},
         {13, nullptr, "CanUseApplicationCore"},
-        {14, nullptr, "GetCallerAppletIdentityInfo"},
+        {14, &ILibraryAppletSelfAccessor::GetCallerAppletIdentityInfo, "GetCallerAppletIdentityInfo"},
         {15, nullptr, "GetMainAppletApplicationControlProperty"},
         {16, nullptr, "GetMainAppletStorageId"},
         {17, nullptr, "GetCallerAppletIdentityInfoStack"},
@@ -1361,10 +1382,142 @@ ILibraryAppletSelfAccessor::ILibraryAppletSelfAccessor(Core::System& system_)
         {140, nullptr, "SetApplicationMemoryReservation"},
         {150, nullptr, "ShouldSetGpuTimeSliceManually"},
     };
+    // clang-format on
     RegisterHandlers(functions);
+
+    PushInShowMiiEditData();
 }
 
 ILibraryAppletSelfAccessor::~ILibraryAppletSelfAccessor() = default;
+void ILibraryAppletSelfAccessor::PopInData(HLERequestContext& ctx) {
+    LOG_INFO(Service_AM, "called");
+
+    if (queue_data.empty()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultNoDataInChannel);
+        return;
+    }
+
+    auto data = queue_data.front();
+    queue_data.pop_front();
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<IStorage>(system, std::move(data));
+}
+
+void ILibraryAppletSelfAccessor::PushOutData(HLERequestContext& ctx) {
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void ILibraryAppletSelfAccessor::ExitProcessAndReturn(HLERequestContext& ctx) {
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    system.Exit();
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void ILibraryAppletSelfAccessor::GetLibraryAppletInfo(HLERequestContext& ctx) {
+    struct LibraryAppletInfo {
+        Applets::AppletId applet_id;
+        Applets::LibraryAppletMode library_applet_mode;
+    };
+
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    const LibraryAppletInfo applet_info{
+        .applet_id = Applets::AppletId::MiiEdit,
+        .library_applet_mode = Applets::LibraryAppletMode::AllForeground,
+    };
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(ResultSuccess);
+    rb.PushRaw(applet_info);
+}
+
+void ILibraryAppletSelfAccessor::GetCallerAppletIdentityInfo(HLERequestContext& ctx) {
+    struct AppletIdentityInfo {
+        Applets::AppletId applet_id;
+        INSERT_PADDING_BYTES(0x4);
+        u64 application_id;
+    };
+
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    const AppletIdentityInfo applet_info{
+        .applet_id = Applets::AppletId::QLaunch,
+        .application_id = 0x0100000000001000ull,
+    };
+
+    IPC::ResponseBuilder rb{ctx, 6};
+    rb.Push(ResultSuccess);
+    rb.PushRaw(applet_info);
+}
+
+void ILibraryAppletSelfAccessor::PushInShowMiiEditData() {
+    struct MiiEditV3 {
+        Applets::MiiEditAppletInputCommon common;
+        Applets::MiiEditAppletInputV3 input;
+    };
+    static_assert(sizeof(MiiEditV3) == 0x100, "MiiEditV3 has incorrect size.");
+
+    MiiEditV3 mii_arguments{
+        .common =
+            {
+                .version = Applets::MiiEditAppletVersion::Version3,
+                .applet_mode = Applets::MiiEditAppletMode::ShowMiiEdit,
+            },
+        .input{},
+    };
+
+    std::vector<u8> argument_data(sizeof(mii_arguments));
+    std::memcpy(argument_data.data(), &mii_arguments, sizeof(mii_arguments));
+
+    queue_data.emplace_back(std::move(argument_data));
+}
+
+IAppletCommonFunctions::IAppletCommonFunctions(Core::System& system_)
+    : ServiceFramework{system_, "IAppletCommonFunctions"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "SetTerminateResult"},
+        {10, nullptr, "ReadThemeStorage"},
+        {11, nullptr, "WriteThemeStorage"},
+        {20, nullptr, "PushToAppletBoundChannel"},
+        {21, nullptr, "TryPopFromAppletBoundChannel"},
+        {40, nullptr, "GetDisplayLogicalResolution"},
+        {42, nullptr, "SetDisplayMagnification"},
+        {50, nullptr, "SetHomeButtonDoubleClickEnabled"},
+        {51, nullptr, "GetHomeButtonDoubleClickEnabled"},
+        {52, nullptr, "IsHomeButtonShortPressedBlocked"},
+        {60, nullptr, "IsVrModeCurtainRequired"},
+        {61, nullptr, "IsSleepRequiredByHighTemperature"},
+        {62, nullptr, "IsSleepRequiredByLowBattery"},
+        {70, &IAppletCommonFunctions::SetCpuBoostRequestPriority, "SetCpuBoostRequestPriority"},
+        {80, nullptr, "SetHandlingCaptureButtonShortPressedMessageEnabledForApplet"},
+        {81, nullptr, "SetHandlingCaptureButtonLongPressedMessageEnabledForApplet"},
+        {90, nullptr, "OpenNamedChannelAsParent"},
+        {91, nullptr, "OpenNamedChannelAsChild"},
+        {100, nullptr, "SetApplicationCoreUsageMode"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IAppletCommonFunctions::~IAppletCommonFunctions() = default;
+
+void IAppletCommonFunctions::SetCpuBoostRequestPriority(HLERequestContext& ctx) {
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
 
 IApplicationFunctions::IApplicationFunctions(Core::System& system_)
     : ServiceFramework{system_, "IApplicationFunctions"}, service_context{system,
@@ -1941,9 +2094,6 @@ void IApplicationFunctions::PrepareForJit(HLERequestContext& ctx) {
 
 void LoopProcess(Nvnflinger::Nvnflinger& nvnflinger, Core::System& system) {
     auto message_queue = std::make_shared<AppletMessageQueue>(system);
-    // Needed on game boot
-    message_queue->PushMessage(AppletMessageQueue::AppletMessage::FocusStateChanged);
-
     auto server_manager = std::make_unique<ServerManager>(system);
 
     server_manager->RegisterNamedService(
@@ -2049,8 +2199,8 @@ IProcessWindingController::IProcessWindingController(Core::System& system_)
     : ServiceFramework{system_, "IProcessWindingController"} {
     // clang-format off
     static const FunctionInfo functions[] = {
-        {0, nullptr, "GetLaunchReason"},
-        {11, nullptr, "OpenCallingLibraryApplet"},
+        {0, &IProcessWindingController::GetLaunchReason, "GetLaunchReason"},
+        {11, &IProcessWindingController::OpenCallingLibraryApplet, "OpenCallingLibraryApplet"},
         {21, nullptr, "PushContext"},
         {22, nullptr, "PopContext"},
         {23, nullptr, "CancelWindingReservation"},
@@ -2064,4 +2214,46 @@ IProcessWindingController::IProcessWindingController(Core::System& system_)
 }
 
 IProcessWindingController::~IProcessWindingController() = default;
+
+void IProcessWindingController::GetLaunchReason(HLERequestContext& ctx) {
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    struct AppletProcessLaunchReason {
+        u8 flag;
+        INSERT_PADDING_BYTES(3);
+    };
+    static_assert(sizeof(AppletProcessLaunchReason) == 0x4,
+                  "AppletProcessLaunchReason is an invalid size");
+
+    AppletProcessLaunchReason reason{
+        .flag = 0,
+    };
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.PushRaw(reason);
+}
+
+void IProcessWindingController::OpenCallingLibraryApplet(HLERequestContext& ctx) {
+    const auto applet_id = Applets::AppletId::MiiEdit;
+    const auto applet_mode = Applets::LibraryAppletMode::AllForeground;
+
+    LOG_WARNING(Service_AM, "(STUBBED) called with applet_id={:08X}, applet_mode={:08X}", applet_id,
+                applet_mode);
+
+    const auto& applet_manager{system.GetAppletManager()};
+    const auto applet = applet_manager.GetApplet(applet_id, applet_mode);
+
+    if (applet == nullptr) {
+        LOG_ERROR(Service_AM, "Applet doesn't exist! applet_id={}", applet_id);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultUnknown);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<ILibraryAppletAccessor>(system, applet);
+}
 } // namespace Service::AM

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

@@ -120,6 +120,9 @@ class IDisplayController final : public ServiceFramework<IDisplayController> {
 public:
     explicit IDisplayController(Core::System& system_);
     ~IDisplayController() override;
+
+private:
+    void TakeScreenShotOfOwnLayer(HLERequestContext& ctx);
 };
 
 class IDebugFunctions final : public ServiceFramework<IDebugFunctions> {
@@ -212,6 +215,11 @@ private:
         CaptureButtonLongPressing,
     };
 
+    enum class SysPlatformRegion : s32 {
+        Global = 1,
+        Terra = 2,
+    };
+
     void GetEventHandle(HLERequestContext& ctx);
     void ReceiveMessage(HLERequestContext& ctx);
     void GetCurrentFocusState(HLERequestContext& ctx);
@@ -227,6 +235,7 @@ private:
     void GetDefaultDisplayResolution(HLERequestContext& ctx);
     void SetCpuBoostMode(HLERequestContext& ctx);
     void PerformSystemButtonPressingIfInFocus(HLERequestContext& ctx);
+    void GetSettingsPlatformRegion(HLERequestContext& ctx);
     void SetRequestExitToLibraryAppletAtExecuteNextProgramEnabled(HLERequestContext& ctx);
 
     std::shared_ptr<AppletMessageQueue> msg_queue;
@@ -294,6 +303,26 @@ class ILibraryAppletSelfAccessor final : public ServiceFramework<ILibraryAppletS
 public:
     explicit ILibraryAppletSelfAccessor(Core::System& system_);
     ~ILibraryAppletSelfAccessor() override;
+
+private:
+    void PopInData(HLERequestContext& ctx);
+    void PushOutData(HLERequestContext& ctx);
+    void GetLibraryAppletInfo(HLERequestContext& ctx);
+    void ExitProcessAndReturn(HLERequestContext& ctx);
+    void GetCallerAppletIdentityInfo(HLERequestContext& ctx);
+
+    void PushInShowMiiEditData();
+
+    std::deque<std::vector<u8>> queue_data;
+};
+
+class IAppletCommonFunctions final : public ServiceFramework<IAppletCommonFunctions> {
+public:
+    explicit IAppletCommonFunctions(Core::System& system_);
+    ~IAppletCommonFunctions() override;
+
+private:
+    void SetCpuBoostRequestPriority(HLERequestContext& ctx);
 };
 
 class IApplicationFunctions final : public ServiceFramework<IApplicationFunctions> {
@@ -378,6 +407,10 @@ class IProcessWindingController final : public ServiceFramework<IProcessWindingC
 public:
     explicit IProcessWindingController(Core::System& system_);
     ~IProcessWindingController() override;
+
+private:
+    void GetLaunchReason(HLERequestContext& ctx);
+    void OpenCallingLibraryApplet(HLERequestContext& ctx);
 };
 
 void LoopProcess(Nvnflinger::Nvnflinger& nvnflinger, Core::System& system);

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

@@ -27,7 +27,7 @@ public:
             {10, &ILibraryAppletProxy::GetProcessWindingController, "GetProcessWindingController"},
             {11, &ILibraryAppletProxy::GetLibraryAppletCreator, "GetLibraryAppletCreator"},
             {20, &ILibraryAppletProxy::OpenLibraryAppletSelfAccessor, "OpenLibraryAppletSelfAccessor"},
-            {21, nullptr, "GetAppletCommonFunctions"},
+            {21, &ILibraryAppletProxy::GetAppletCommonFunctions, "GetAppletCommonFunctions"},
             {22, nullptr, "GetHomeMenuFunctions"},
             {23, nullptr, "GetGlobalStateController"},
             {1000, &ILibraryAppletProxy::GetDebugFunctions, "GetDebugFunctions"},
@@ -86,14 +86,6 @@ private:
         rb.PushIpcInterface<IProcessWindingController>(system);
     }
 
-    void GetDebugFunctions(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_AM, "called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-        rb.Push(ResultSuccess);
-        rb.PushIpcInterface<IDebugFunctions>(system);
-    }
-
     void GetLibraryAppletCreator(HLERequestContext& ctx) {
         LOG_DEBUG(Service_AM, "called");
 
@@ -110,6 +102,22 @@ private:
         rb.PushIpcInterface<ILibraryAppletSelfAccessor>(system);
     }
 
+    void GetAppletCommonFunctions(HLERequestContext& ctx) {
+        LOG_DEBUG(Service_AM, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(ResultSuccess);
+        rb.PushIpcInterface<IAppletCommonFunctions>(system);
+    }
+
+    void GetDebugFunctions(HLERequestContext& ctx) {
+        LOG_DEBUG(Service_AM, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(ResultSuccess);
+        rb.PushIpcInterface<IDebugFunctions>(system);
+    }
+
     Nvnflinger::Nvnflinger& nvnflinger;
     std::shared_ptr<AppletMessageQueue> msg_queue;
 };
@@ -133,7 +141,7 @@ public:
             {20, &ISystemAppletProxy::GetHomeMenuFunctions, "GetHomeMenuFunctions"},
             {21, &ISystemAppletProxy::GetGlobalStateController, "GetGlobalStateController"},
             {22, &ISystemAppletProxy::GetApplicationCreator, "GetApplicationCreator"},
-            {23, nullptr, "GetAppletCommonFunctions"},
+            {23,  &ISystemAppletProxy::GetAppletCommonFunctions, "GetAppletCommonFunctions"},
             {1000, &ISystemAppletProxy::GetDebugFunctions, "GetDebugFunctions"},
         };
         // clang-format on
@@ -182,14 +190,6 @@ private:
         rb.PushIpcInterface<IDisplayController>(system);
     }
 
-    void GetDebugFunctions(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_AM, "called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-        rb.Push(ResultSuccess);
-        rb.PushIpcInterface<IDebugFunctions>(system);
-    }
-
     void GetLibraryAppletCreator(HLERequestContext& ctx) {
         LOG_DEBUG(Service_AM, "called");
 
@@ -222,6 +222,22 @@ private:
         rb.PushIpcInterface<IApplicationCreator>(system);
     }
 
+    void GetAppletCommonFunctions(HLERequestContext& ctx) {
+        LOG_DEBUG(Service_AM, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(ResultSuccess);
+        rb.PushIpcInterface<IAppletCommonFunctions>(system);
+    }
+
+    void GetDebugFunctions(HLERequestContext& ctx) {
+        LOG_DEBUG(Service_AM, "called");
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(ResultSuccess);
+        rb.PushIpcInterface<IDebugFunctions>(system);
+    }
+
     Nvnflinger::Nvnflinger& nvnflinger;
     std::shared_ptr<AppletMessageQueue> msg_queue;
 };

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

@@ -7,7 +7,9 @@
 #include "core/frontend/applets/mii_edit.h"
 #include "core/hle/service/am/am.h"
 #include "core/hle/service/am/applets/applet_mii_edit.h"
+#include "core/hle/service/mii/mii.h"
 #include "core/hle/service/mii/mii_manager.h"
+#include "core/hle/service/sm/sm.h"
 
 namespace Service::AM::Applets {
 
@@ -56,6 +58,12 @@ void MiiEdit::Initialize() {
                     sizeof(MiiEditAppletInputV4));
         break;
     }
+
+    manager = system.ServiceManager().GetService<Mii::MiiDBModule>("mii:e")->GetMiiManager();
+    if (manager == nullptr) {
+        manager = std::make_shared<Mii::MiiManager>();
+    }
+    manager->Initialize(metadata);
 }
 
 bool MiiEdit::TransactionComplete() const {
@@ -78,22 +86,46 @@ void MiiEdit::Execute() {
     // This is a default stub for each of the MiiEdit applet modes.
     switch (applet_input_common.applet_mode) {
     case MiiEditAppletMode::ShowMiiEdit:
-    case MiiEditAppletMode::AppendMii:
     case MiiEditAppletMode::AppendMiiImage:
     case MiiEditAppletMode::UpdateMiiImage:
         MiiEditOutput(MiiEditResult::Success, 0);
         break;
-    case MiiEditAppletMode::CreateMii:
-    case MiiEditAppletMode::EditMii: {
-        Mii::CharInfo char_info{};
+    case MiiEditAppletMode::AppendMii: {
         Mii::StoreData store_data{};
-        store_data.BuildBase(Mii::Gender::Male);
-        char_info.SetFromStoreData(store_data);
+        store_data.BuildRandom(Mii::Age::All, Mii::Gender::All, Mii::Race::All);
+        store_data.SetNickname({u'y', u'u', u'z', u'u'});
+        store_data.SetChecksum();
+        const auto result = manager->AddOrReplace(metadata, store_data);
+
+        if (result.IsError()) {
+            MiiEditOutput(MiiEditResult::Cancel, 0);
+            break;
+        }
+
+        s32 index = manager->FindIndex(store_data.GetCreateId(), false);
+
+        if (index == -1) {
+            MiiEditOutput(MiiEditResult::Cancel, 0);
+            break;
+        }
+
+        MiiEditOutput(MiiEditResult::Success, index);
+        break;
+    }
+    case MiiEditAppletMode::CreateMii: {
+        Mii::CharInfo char_info{};
+        manager->BuildRandom(char_info, Mii::Age::All, Mii::Gender::All, Mii::Race::All);
 
         const MiiEditCharInfo edit_char_info{
-            .mii_info{applet_input_common.applet_mode == MiiEditAppletMode::EditMii
-                          ? applet_input_v4.char_info.mii_info
-                          : char_info},
+            .mii_info{char_info},
+        };
+
+        MiiEditOutputForCharInfoEditing(MiiEditResult::Success, edit_char_info);
+        break;
+    }
+    case MiiEditAppletMode::EditMii: {
+        const MiiEditCharInfo edit_char_info{
+            .mii_info{applet_input_v4.char_info.mii_info},
         };
 
         MiiEditOutputForCharInfoEditing(MiiEditResult::Success, edit_char_info);
@@ -113,6 +145,8 @@ void MiiEdit::MiiEditOutput(MiiEditResult result, s32 index) {
         .index{index},
     };
 
+    LOG_INFO(Input, "called, result={}, index={}", result, index);
+
     std::vector<u8> out_data(sizeof(MiiEditAppletOutput));
     std::memcpy(out_data.data(), &applet_output, sizeof(MiiEditAppletOutput));
 

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

@@ -11,6 +11,11 @@ namespace Core {
 class System;
 } // namespace Core
 
+namespace Service::Mii {
+struct DatabaseSessionMetadata;
+class MiiManager;
+} // namespace Service::Mii
+
 namespace Service::AM::Applets {
 
 class MiiEdit final : public Applet {
@@ -40,6 +45,8 @@ private:
     MiiEditAppletInputV4 applet_input_v4{};
 
     bool is_complete{false};
+    std::shared_ptr<Mii::MiiManager> manager = nullptr;
+    Mii::DatabaseSessionMetadata metadata{};
 };
 
 } // namespace Service::AM::Applets

src/core/hle/service/aoc/aoc_u.cpp

@@ -22,6 +22,8 @@
 
 namespace Service::AOC {
 
+constexpr Result ResultNoPurchasedProductInfoAvailable{ErrorModule::NIMShop, 400};
+
 static bool CheckAOCTitleIDMatchesBase(u64 title_id, u64 base) {
     return FileSys::GetBaseTitleID(title_id) == base;
 }
@@ -54,8 +56,8 @@ public:
             {0, &IPurchaseEventManager::SetDefaultDeliveryTarget, "SetDefaultDeliveryTarget"},
             {1, &IPurchaseEventManager::SetDeliveryTarget, "SetDeliveryTarget"},
             {2, &IPurchaseEventManager::GetPurchasedEventReadableHandle, "GetPurchasedEventReadableHandle"},
-            {3, nullptr, "PopPurchasedProductInfo"},
-            {4, nullptr, "PopPurchasedProductInfoWithUid"},
+            {3, &IPurchaseEventManager::PopPurchasedProductInfo, "PopPurchasedProductInfo"},
+            {4, &IPurchaseEventManager::PopPurchasedProductInfoWithUid, "PopPurchasedProductInfoWithUid"},
         };
         // clang-format on
 
@@ -101,6 +103,20 @@ private:
         rb.PushCopyObjects(purchased_event->GetReadableEvent());
     }
 
+    void PopPurchasedProductInfo(HLERequestContext& ctx) {
+        LOG_DEBUG(Service_AOC, "(STUBBED) called");
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultNoPurchasedProductInfoAvailable);
+    }
+
+    void PopPurchasedProductInfoWithUid(HLERequestContext& ctx) {
+        LOG_DEBUG(Service_AOC, "(STUBBED) called");
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultNoPurchasedProductInfoAvailable);
+    }
+
     KernelHelpers::ServiceContext service_context;
 
     Kernel::KEvent* purchased_event;

src/core/hle/service/audio/errors.h

@@ -20,4 +20,16 @@ constexpr Result ResultNotSupported{ErrorModule::Audio, 513};
 constexpr Result ResultInvalidHandle{ErrorModule::Audio, 1536};
 constexpr Result ResultInvalidRevision{ErrorModule::Audio, 1537};
 
+constexpr Result ResultLibOpusAllocFail{ErrorModule::HwOpus, 7};
+constexpr Result ResultInputDataTooSmall{ErrorModule::HwOpus, 8};
+constexpr Result ResultLibOpusInvalidState{ErrorModule::HwOpus, 6};
+constexpr Result ResultLibOpusUnimplemented{ErrorModule::HwOpus, 5};
+constexpr Result ResultLibOpusInvalidPacket{ErrorModule::HwOpus, 17};
+constexpr Result ResultLibOpusInternalError{ErrorModule::HwOpus, 4};
+constexpr Result ResultBufferTooSmall{ErrorModule::HwOpus, 3};
+constexpr Result ResultLibOpusBadArg{ErrorModule::HwOpus, 2};
+constexpr Result ResultInvalidOpusDSPReturnCode{ErrorModule::HwOpus, 259};
+constexpr Result ResultInvalidOpusSampleRate{ErrorModule::HwOpus, 1001};
+constexpr Result ResultInvalidOpusChannelCount{ErrorModule::HwOpus, 1002};
+
 } // namespace Service::Audio

src/core/hle/service/audio/hwopus.cpp

@@ -1,420 +1,506 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <chrono>
-#include <cstring>
 #include <memory>
 #include <vector>
 
-#include <opus.h>
-#include <opus_multistream.h>
-
+#include "audio_core/opus/decoder.h"
+#include "audio_core/opus/parameters.h"
 #include "common/assert.h"
 #include "common/logging/log.h"
 #include "common/scratch_buffer.h"
+#include "core/core.h"
 #include "core/hle/service/audio/hwopus.h"
 #include "core/hle/service/ipc_helpers.h"
 
 namespace Service::Audio {
-namespace {
-struct OpusDeleter {
-    void operator()(OpusMSDecoder* ptr) const {
-        opus_multistream_decoder_destroy(ptr);
-    }
-};
+using namespace AudioCore::OpusDecoder;
 
-using OpusDecoderPtr = std::unique_ptr<OpusMSDecoder, OpusDeleter>;
-
-struct OpusPacketHeader {
-    // Packet size in bytes.
-    u32_be size;
-    // Indicates the final range of the codec's entropy coder.
-    u32_be final_range;
-};
-static_assert(sizeof(OpusPacketHeader) == 0x8, "OpusHeader is an invalid size");
-
-class OpusDecoderState {
+class IHardwareOpusDecoder final : public ServiceFramework<IHardwareOpusDecoder> {
 public:
-    /// Describes extra behavior that may be asked of the decoding context.
-    enum class ExtraBehavior {
-        /// No extra behavior.
-        None,
-
-        /// Resets the decoder context back to a freshly initialized state.
-        ResetContext,
-    };
-
-    enum class PerfTime {
-        Disabled,
-        Enabled,
-    };
-
-    explicit OpusDecoderState(OpusDecoderPtr decoder_, u32 sample_rate_, u32 channel_count_)
-        : decoder{std::move(decoder_)}, sample_rate{sample_rate_}, channel_count{channel_count_} {}
-
-    // Decodes interleaved Opus packets. Optionally allows reporting time taken to
-    // perform the decoding, as well as any relevant extra behavior.
-    void DecodeInterleaved(HLERequestContext& ctx, PerfTime perf_time,
-                           ExtraBehavior extra_behavior) {
-        if (perf_time == PerfTime::Disabled) {
-            DecodeInterleavedHelper(ctx, nullptr, extra_behavior);
-        } else {
-            u64 performance = 0;
-            DecodeInterleavedHelper(ctx, &performance, extra_behavior);
-        }
-    }
-
-private:
-    void DecodeInterleavedHelper(HLERequestContext& ctx, u64* performance,
-                                 ExtraBehavior extra_behavior) {
-        u32 consumed = 0;
-        u32 sample_count = 0;
-        samples.resize_destructive(ctx.GetWriteBufferNumElements<opus_int16>());
-
-        if (extra_behavior == ExtraBehavior::ResetContext) {
-            ResetDecoderContext();
-        }
-
-        if (!DecodeOpusData(consumed, sample_count, ctx.ReadBuffer(), samples, performance)) {
-            LOG_ERROR(Audio, "Failed to decode opus data");
-            IPC::ResponseBuilder rb{ctx, 2};
-            // TODO(ogniK): Use correct error code
-            rb.Push(ResultUnknown);
-            return;
-        }
-
-        const u32 param_size = performance != nullptr ? 6 : 4;
-        IPC::ResponseBuilder rb{ctx, param_size};
-        rb.Push(ResultSuccess);
-        rb.Push<u32>(consumed);
-        rb.Push<u32>(sample_count);
-        if (performance) {
-            rb.Push<u64>(*performance);
-        }
-        ctx.WriteBuffer(samples);
-    }
-
-    bool DecodeOpusData(u32& consumed, u32& sample_count, std::span<const u8> input,
-                        std::span<opus_int16> output, u64* out_performance_time) const {
-        const auto start_time = std::chrono::steady_clock::now();
-        const std::size_t raw_output_sz = output.size() * sizeof(opus_int16);
-        if (sizeof(OpusPacketHeader) > input.size()) {
-            LOG_ERROR(Audio, "Input is smaller than the header size, header_sz={}, input_sz={}",
-                      sizeof(OpusPacketHeader), input.size());
-            return false;
-        }
-
-        OpusPacketHeader hdr{};
-        std::memcpy(&hdr, input.data(), sizeof(OpusPacketHeader));
-        if (sizeof(OpusPacketHeader) + static_cast<u32>(hdr.size) > input.size()) {
-            LOG_ERROR(Audio, "Input does not fit in the opus header size. data_sz={}, input_sz={}",
-                      sizeof(OpusPacketHeader) + static_cast<u32>(hdr.size), input.size());
-            return false;
-        }
-
-        const auto frame = input.data() + sizeof(OpusPacketHeader);
-        const auto decoded_sample_count = opus_packet_get_nb_samples(
-            frame, static_cast<opus_int32>(input.size() - sizeof(OpusPacketHeader)),
-            static_cast<opus_int32>(sample_rate));
-        if (decoded_sample_count * channel_count * sizeof(u16) > raw_output_sz) {
-            LOG_ERROR(
-                Audio,
-                "Decoded data does not fit into the output data, decoded_sz={}, raw_output_sz={}",
-                decoded_sample_count * channel_count * sizeof(u16), raw_output_sz);
-            return false;
-        }
-
-        const int frame_size = (static_cast<int>(raw_output_sz / sizeof(s16) / channel_count));
-        const auto out_sample_count =
-            opus_multistream_decode(decoder.get(), frame, hdr.size, output.data(), frame_size, 0);
-        if (out_sample_count < 0) {
-            LOG_ERROR(Audio,
-                      "Incorrect sample count received from opus_decode, "
-                      "output_sample_count={}, frame_size={}, data_sz_from_hdr={}",
-                      out_sample_count, frame_size, static_cast<u32>(hdr.size));
-            return false;
-        }
-
-        const auto end_time = std::chrono::steady_clock::now() - start_time;
-        sample_count = out_sample_count;
-        consumed = static_cast<u32>(sizeof(OpusPacketHeader) + hdr.size);
-        if (out_performance_time != nullptr) {
-            *out_performance_time =
-                std::chrono::duration_cast<std::chrono::milliseconds>(end_time).count();
-        }
-
-        return true;
-    }
-
-    void ResetDecoderContext() {
-        ASSERT(decoder != nullptr);
-
-        opus_multistream_decoder_ctl(decoder.get(), OPUS_RESET_STATE);
-    }
-
-    OpusDecoderPtr decoder;
-    u32 sample_rate;
-    u32 channel_count;
-    Common::ScratchBuffer<opus_int16> samples;
-};
-
-class IHardwareOpusDecoderManager final : public ServiceFramework<IHardwareOpusDecoderManager> {
-public:
-    explicit IHardwareOpusDecoderManager(Core::System& system_, OpusDecoderState decoder_state_)
-        : ServiceFramework{system_, "IHardwareOpusDecoderManager"}, decoder_state{
-                                                                        std::move(decoder_state_)} {
+    explicit IHardwareOpusDecoder(Core::System& system_, HardwareOpus& hardware_opus)
+        : ServiceFramework{system_, "IHardwareOpusDecoder"},
+          impl{std::make_unique<AudioCore::OpusDecoder::OpusDecoder>(system_, hardware_opus)} {
         // clang-format off
         static const FunctionInfo functions[] = {
-            {0, &IHardwareOpusDecoderManager::DecodeInterleavedOld, "DecodeInterleavedOld"},
-            {1, nullptr, "SetContext"},
-            {2, nullptr, "DecodeInterleavedForMultiStreamOld"},
-            {3, nullptr, "SetContextForMultiStream"},
-            {4, &IHardwareOpusDecoderManager::DecodeInterleavedWithPerfOld, "DecodeInterleavedWithPerfOld"},
-            {5, nullptr, "DecodeInterleavedForMultiStreamWithPerfOld"},
-            {6, &IHardwareOpusDecoderManager::DecodeInterleaved, "DecodeInterleavedWithPerfAndResetOld"},
-            {7, nullptr, "DecodeInterleavedForMultiStreamWithPerfAndResetOld"},
-            {8, &IHardwareOpusDecoderManager::DecodeInterleaved, "DecodeInterleaved"},
-            {9, &IHardwareOpusDecoderManager::DecodeInterleavedForMultiStream, "DecodeInterleavedForMultiStream"},
+            {0, &IHardwareOpusDecoder::DecodeInterleavedOld, "DecodeInterleavedOld"},
+            {1, &IHardwareOpusDecoder::SetContext, "SetContext"},
+            {2, &IHardwareOpusDecoder::DecodeInterleavedForMultiStreamOld, "DecodeInterleavedForMultiStreamOld"},
+            {3, &IHardwareOpusDecoder::SetContextForMultiStream, "SetContextForMultiStream"},
+            {4, &IHardwareOpusDecoder::DecodeInterleavedWithPerfOld, "DecodeInterleavedWithPerfOld"},
+            {5, &IHardwareOpusDecoder::DecodeInterleavedForMultiStreamWithPerfOld, "DecodeInterleavedForMultiStreamWithPerfOld"},
+            {6, &IHardwareOpusDecoder::DecodeInterleavedWithPerfAndResetOld, "DecodeInterleavedWithPerfAndResetOld"},
+            {7, &IHardwareOpusDecoder::DecodeInterleavedForMultiStreamWithPerfAndResetOld, "DecodeInterleavedForMultiStreamWithPerfAndResetOld"},
+            {8, &IHardwareOpusDecoder::DecodeInterleaved, "DecodeInterleaved"},
+            {9, &IHardwareOpusDecoder::DecodeInterleavedForMultiStream, "DecodeInterleavedForMultiStream"},
         };
         // clang-format on
 
         RegisterHandlers(functions);
     }
 
+    Result Initialize(OpusParametersEx& params, Kernel::KTransferMemory* transfer_memory,
+                      u64 transfer_memory_size) {
+        return impl->Initialize(params, transfer_memory, transfer_memory_size);
+    }
+
+    Result Initialize(OpusMultiStreamParametersEx& params, Kernel::KTransferMemory* transfer_memory,
+                      u64 transfer_memory_size) {
+        return impl->Initialize(params, transfer_memory, transfer_memory_size);
+    }
+
 private:
     void DecodeInterleavedOld(HLERequestContext& ctx) {
-        LOG_DEBUG(Audio, "called");
+        IPC::RequestParser rp{ctx};
 
-        decoder_state.DecodeInterleaved(ctx, OpusDecoderState::PerfTime::Disabled,
-                                        OpusDecoderState::ExtraBehavior::None);
+        auto input_data{ctx.ReadBuffer(0)};
+        output_data.resize_destructive(ctx.GetWriteBufferSize());
+
+        u32 size{};
+        u32 sample_count{};
+        auto result =
+            impl->DecodeInterleaved(&size, nullptr, &sample_count, input_data, output_data, false);
+
+        LOG_DEBUG(Service_Audio, "bytes read 0x{:X} samples generated {}", size, sample_count);
+
+        ctx.WriteBuffer(output_data);
+
+        IPC::ResponseBuilder rb{ctx, 4};
+        rb.Push(result);
+        rb.Push(size);
+        rb.Push(sample_count);
+    }
+
+    void SetContext(HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+
+        LOG_DEBUG(Service_Audio, "called");
+
+        auto input_data{ctx.ReadBuffer(0)};
+        auto result = impl->SetContext(input_data);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result);
+    }
+
+    void DecodeInterleavedForMultiStreamOld(HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+
+        auto input_data{ctx.ReadBuffer(0)};
+        output_data.resize_destructive(ctx.GetWriteBufferSize());
+
+        u32 size{};
+        u32 sample_count{};
+        auto result = impl->DecodeInterleavedForMultiStream(&size, nullptr, &sample_count,
+                                                            input_data, output_data, false);
+
+        LOG_DEBUG(Service_Audio, "bytes read 0x{:X} samples generated {}", size, sample_count);
+
+        ctx.WriteBuffer(output_data);
+
+        IPC::ResponseBuilder rb{ctx, 4};
+        rb.Push(result);
+        rb.Push(size);
+        rb.Push(sample_count);
+    }
+
+    void SetContextForMultiStream(HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+
+        LOG_DEBUG(Service_Audio, "called");
+
+        auto input_data{ctx.ReadBuffer(0)};
+        auto result = impl->SetContext(input_data);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result);
     }
 
     void DecodeInterleavedWithPerfOld(HLERequestContext& ctx) {
-        LOG_DEBUG(Audio, "called");
+        IPC::RequestParser rp{ctx};
 
-        decoder_state.DecodeInterleaved(ctx, OpusDecoderState::PerfTime::Enabled,
-                                        OpusDecoderState::ExtraBehavior::None);
+        auto input_data{ctx.ReadBuffer(0)};
+        output_data.resize_destructive(ctx.GetWriteBufferSize());
+
+        u32 size{};
+        u32 sample_count{};
+        u64 time_taken{};
+        auto result = impl->DecodeInterleaved(&size, &time_taken, &sample_count, input_data,
+                                              output_data, false);
+
+        LOG_DEBUG(Service_Audio, "bytes read 0x{:X} samples generated {} time taken {}", size,
+                  sample_count, time_taken);
+
+        ctx.WriteBuffer(output_data);
+
+        IPC::ResponseBuilder rb{ctx, 6};
+        rb.Push(result);
+        rb.Push(size);
+        rb.Push(sample_count);
+        rb.Push(time_taken);
+    }
+
+    void DecodeInterleavedForMultiStreamWithPerfOld(HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+
+        auto input_data{ctx.ReadBuffer(0)};
+        output_data.resize_destructive(ctx.GetWriteBufferSize());
+
+        u32 size{};
+        u32 sample_count{};
+        u64 time_taken{};
+        auto result = impl->DecodeInterleavedForMultiStream(&size, &time_taken, &sample_count,
+                                                            input_data, output_data, false);
+
+        LOG_DEBUG(Service_Audio, "bytes read 0x{:X} samples generated {} time taken {}", size,
+                  sample_count, time_taken);
+
+        ctx.WriteBuffer(output_data);
+
+        IPC::ResponseBuilder rb{ctx, 6};
+        rb.Push(result);
+        rb.Push(size);
+        rb.Push(sample_count);
+        rb.Push(time_taken);
+    }
+
+    void DecodeInterleavedWithPerfAndResetOld(HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+
+        auto reset{rp.Pop<bool>()};
+
+        auto input_data{ctx.ReadBuffer(0)};
+        output_data.resize_destructive(ctx.GetWriteBufferSize());
+
+        u32 size{};
+        u32 sample_count{};
+        u64 time_taken{};
+        auto result = impl->DecodeInterleaved(&size, &time_taken, &sample_count, input_data,
+                                              output_data, reset);
+
+        LOG_DEBUG(Service_Audio, "reset {} bytes read 0x{:X} samples generated {} time taken {}",
+                  reset, size, sample_count, time_taken);
+
+        ctx.WriteBuffer(output_data);
+
+        IPC::ResponseBuilder rb{ctx, 6};
+        rb.Push(result);
+        rb.Push(size);
+        rb.Push(sample_count);
+        rb.Push(time_taken);
+    }
+
+    void DecodeInterleavedForMultiStreamWithPerfAndResetOld(HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+
+        auto reset{rp.Pop<bool>()};
+
+        auto input_data{ctx.ReadBuffer(0)};
+        output_data.resize_destructive(ctx.GetWriteBufferSize());
+
+        u32 size{};
+        u32 sample_count{};
+        u64 time_taken{};
+        auto result = impl->DecodeInterleavedForMultiStream(&size, &time_taken, &sample_count,
+                                                            input_data, output_data, reset);
+
+        LOG_DEBUG(Service_Audio, "reset {} bytes read 0x{:X} samples generated {} time taken {}",
+                  reset, size, sample_count, time_taken);
+
+        ctx.WriteBuffer(output_data);
+
+        IPC::ResponseBuilder rb{ctx, 6};
+        rb.Push(result);
+        rb.Push(size);
+        rb.Push(sample_count);
+        rb.Push(time_taken);
     }
 
     void DecodeInterleaved(HLERequestContext& ctx) {
-        LOG_DEBUG(Audio, "called");
-
         IPC::RequestParser rp{ctx};
-        const auto extra_behavior = rp.Pop<bool>() ? OpusDecoderState::ExtraBehavior::ResetContext
-                                                   : OpusDecoderState::ExtraBehavior::None;
 
-        decoder_state.DecodeInterleaved(ctx, OpusDecoderState::PerfTime::Enabled, extra_behavior);
+        auto reset{rp.Pop<bool>()};
+
+        auto input_data{ctx.ReadBuffer(0)};
+        output_data.resize_destructive(ctx.GetWriteBufferSize());
+
+        u32 size{};
+        u32 sample_count{};
+        u64 time_taken{};
+        auto result = impl->DecodeInterleaved(&size, &time_taken, &sample_count, input_data,
+                                              output_data, reset);
+
+        LOG_DEBUG(Service_Audio, "reset {} bytes read 0x{:X} samples generated {} time taken {}",
+                  reset, size, sample_count, time_taken);
+
+        ctx.WriteBuffer(output_data);
+
+        IPC::ResponseBuilder rb{ctx, 6};
+        rb.Push(result);
+        rb.Push(size);
+        rb.Push(sample_count);
+        rb.Push(time_taken);
     }
 
     void DecodeInterleavedForMultiStream(HLERequestContext& ctx) {
-        LOG_DEBUG(Audio, "called");
-
         IPC::RequestParser rp{ctx};
-        const auto extra_behavior = rp.Pop<bool>() ? OpusDecoderState::ExtraBehavior::ResetContext
-                                                   : OpusDecoderState::ExtraBehavior::None;
 
-        decoder_state.DecodeInterleaved(ctx, OpusDecoderState::PerfTime::Enabled, extra_behavior);
+        auto reset{rp.Pop<bool>()};
+
+        auto input_data{ctx.ReadBuffer(0)};
+        output_data.resize_destructive(ctx.GetWriteBufferSize());
+
+        u32 size{};
+        u32 sample_count{};
+        u64 time_taken{};
+        auto result = impl->DecodeInterleavedForMultiStream(&size, &time_taken, &sample_count,
+                                                            input_data, output_data, reset);
+
+        LOG_DEBUG(Service_Audio, "reset {} bytes read 0x{:X} samples generated {} time taken {}",
+                  reset, size, sample_count, time_taken);
+
+        ctx.WriteBuffer(output_data);
+
+        IPC::ResponseBuilder rb{ctx, 6};
+        rb.Push(result);
+        rb.Push(size);
+        rb.Push(sample_count);
+        rb.Push(time_taken);
     }
 
-    OpusDecoderState decoder_state;
+    std::unique_ptr<AudioCore::OpusDecoder::OpusDecoder> impl;
+    Common::ScratchBuffer<u8> output_data;
 };
 
-std::size_t WorkerBufferSize(u32 channel_count) {
-    ASSERT_MSG(channel_count == 1 || channel_count == 2, "Invalid channel count");
-    constexpr int num_streams = 1;
-    const int num_stereo_streams = channel_count == 2 ? 1 : 0;
-    return opus_multistream_decoder_get_size(num_streams, num_stereo_streams);
-}
-
-// Creates the mapping table that maps the input channels to the particular
-// output channels. In the stereo case, we map the left and right input channels
-// to the left and right output channels respectively.
-//
-// However, in the monophonic case, we only map the one available channel
-// to the sole output channel. We specify 255 for the would-be right channel
-// as this is a special value defined by Opus to indicate to the decoder to
-// ignore that channel.
-std::array<u8, 2> CreateMappingTable(u32 channel_count) {
-    if (channel_count == 2) {
-        return {{0, 1}};
-    }
-
-    return {{0, 255}};
-}
-} // Anonymous namespace
-
-void HwOpus::GetWorkBufferSize(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto sample_rate = rp.Pop<u32>();
-    const auto channel_count = rp.Pop<u32>();
-
-    LOG_DEBUG(Audio, "called with sample_rate={}, channel_count={}", sample_rate, channel_count);
-
-    ASSERT_MSG(sample_rate == 48000 || sample_rate == 24000 || sample_rate == 16000 ||
-                   sample_rate == 12000 || sample_rate == 8000,
-               "Invalid sample rate");
-    ASSERT_MSG(channel_count == 1 || channel_count == 2, "Invalid channel count");
-
-    const u32 worker_buffer_sz = static_cast<u32>(WorkerBufferSize(channel_count));
-    LOG_DEBUG(Audio, "worker_buffer_sz={}", worker_buffer_sz);
-
-    IPC::ResponseBuilder rb{ctx, 3};
-    rb.Push(ResultSuccess);
-    rb.Push<u32>(worker_buffer_sz);
-}
-
-void HwOpus::GetWorkBufferSizeEx(HLERequestContext& ctx) {
-    GetWorkBufferSize(ctx);
-}
-
-void HwOpus::GetWorkBufferSizeExEx(HLERequestContext& ctx) {
-    GetWorkBufferSizeEx(ctx);
-}
-
-void HwOpus::GetWorkBufferSizeForMultiStreamEx(HLERequestContext& ctx) {
-    OpusMultiStreamParametersEx param;
-    std::memcpy(&param, ctx.ReadBuffer().data(), ctx.GetReadBufferSize());
-
-    const auto sample_rate = param.sample_rate;
-    const auto channel_count = param.channel_count;
-    const auto number_streams = param.number_streams;
-    const auto number_stereo_streams = param.number_stereo_streams;
-
-    LOG_DEBUG(
-        Audio,
-        "called with sample_rate={}, channel_count={}, number_streams={}, number_stereo_streams={}",
-        sample_rate, channel_count, number_streams, number_stereo_streams);
-
-    ASSERT_MSG(sample_rate == 48000 || sample_rate == 24000 || sample_rate == 16000 ||
-                   sample_rate == 12000 || sample_rate == 8000,
-               "Invalid sample rate");
-
-    const u32 worker_buffer_sz =
-        static_cast<u32>(opus_multistream_decoder_get_size(number_streams, number_stereo_streams));
-
-    IPC::ResponseBuilder rb{ctx, 3};
-    rb.Push(ResultSuccess);
-    rb.Push<u32>(worker_buffer_sz);
-}
-
 void HwOpus::OpenHardwareOpusDecoder(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
-    const auto sample_rate = rp.Pop<u32>();
-    const auto channel_count = rp.Pop<u32>();
-    const auto buffer_sz = rp.Pop<u32>();
 
-    LOG_DEBUG(Audio, "called sample_rate={}, channel_count={}, buffer_size={}", sample_rate,
-              channel_count, buffer_sz);
+    auto params = rp.PopRaw<OpusParameters>();
+    auto transfer_memory_size{rp.Pop<u32>()};
+    auto transfer_memory_handle{ctx.GetCopyHandle(0)};
+    auto transfer_memory{
+        system.ApplicationProcess()->GetHandleTable().GetObject<Kernel::KTransferMemory>(
+            transfer_memory_handle)};
 
-    ASSERT_MSG(sample_rate == 48000 || sample_rate == 24000 || sample_rate == 16000 ||
-                   sample_rate == 12000 || sample_rate == 8000,
-               "Invalid sample rate");
-    ASSERT_MSG(channel_count == 1 || channel_count == 2, "Invalid channel count");
+    LOG_DEBUG(Service_Audio, "sample_rate {} channel_count {} transfer_memory_size 0x{:X}",
+              params.sample_rate, params.channel_count, transfer_memory_size);
 
-    const std::size_t worker_sz = WorkerBufferSize(channel_count);
-    ASSERT_MSG(buffer_sz >= worker_sz, "Worker buffer too large");
+    auto decoder{std::make_shared<IHardwareOpusDecoder>(system, impl.GetHardwareOpus())};
 
-    const int num_stereo_streams = channel_count == 2 ? 1 : 0;
-    const auto mapping_table = CreateMappingTable(channel_count);
-
-    int error = 0;
-    OpusDecoderPtr decoder{
-        opus_multistream_decoder_create(sample_rate, static_cast<int>(channel_count), 1,
-                                        num_stereo_streams, mapping_table.data(), &error)};
-    if (error != OPUS_OK || decoder == nullptr) {
-        LOG_ERROR(Audio, "Failed to create Opus decoder (error={}).", error);
-        IPC::ResponseBuilder rb{ctx, 2};
-        // TODO(ogniK): Use correct error code
-        rb.Push(ResultUnknown);
-        return;
-    }
+    OpusParametersEx ex{
+        .sample_rate = params.sample_rate,
+        .channel_count = params.channel_count,
+        .use_large_frame_size = false,
+    };
+    auto result = decoder->Initialize(ex, transfer_memory.GetPointerUnsafe(), transfer_memory_size);
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-    rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IHardwareOpusDecoderManager>(
-        system, OpusDecoderState{std::move(decoder), sample_rate, channel_count});
+    rb.Push(result);
+    rb.PushIpcInterface(decoder);
+}
+
+void HwOpus::GetWorkBufferSize(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    auto params = rp.PopRaw<OpusParameters>();
+
+    u64 size{};
+    auto result = impl.GetWorkBufferSize(params, size);
+
+    LOG_DEBUG(Service_Audio, "sample_rate {} channel_count {} -- returned size 0x{:X}",
+              params.sample_rate, params.channel_count, size);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(result);
+    rb.Push(size);
+}
+
+void HwOpus::OpenHardwareOpusDecoderForMultiStream(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+
+    auto input{ctx.ReadBuffer()};
+    OpusMultiStreamParameters params;
+    std::memcpy(&params, input.data(), sizeof(OpusMultiStreamParameters));
+
+    auto transfer_memory_size{rp.Pop<u32>()};
+    auto transfer_memory_handle{ctx.GetCopyHandle(0)};
+    auto transfer_memory{
+        system.ApplicationProcess()->GetHandleTable().GetObject<Kernel::KTransferMemory>(
+            transfer_memory_handle)};
+
+    LOG_DEBUG(Service_Audio,
+              "sample_rate {} channel_count {} total_stream_count {} stereo_stream_count {} "
+              "transfer_memory_size 0x{:X}",
+              params.sample_rate, params.channel_count, params.total_stream_count,
+              params.stereo_stream_count, transfer_memory_size);
+
+    auto decoder{std::make_shared<IHardwareOpusDecoder>(system, impl.GetHardwareOpus())};
+
+    OpusMultiStreamParametersEx ex{
+        .sample_rate = params.sample_rate,
+        .channel_count = params.channel_count,
+        .total_stream_count = params.total_stream_count,
+        .stereo_stream_count = params.stereo_stream_count,
+        .use_large_frame_size = false,
+        .mappings{},
+    };
+    std::memcpy(ex.mappings.data(), params.mappings.data(), sizeof(params.mappings));
+    auto result = decoder->Initialize(ex, transfer_memory.GetPointerUnsafe(), transfer_memory_size);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(result);
+    rb.PushIpcInterface(decoder);
+}
+
+void HwOpus::GetWorkBufferSizeForMultiStream(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+
+    auto input{ctx.ReadBuffer()};
+    OpusMultiStreamParameters params;
+    std::memcpy(&params, input.data(), sizeof(OpusMultiStreamParameters));
+
+    u64 size{};
+    auto result = impl.GetWorkBufferSizeForMultiStream(params, size);
+
+    LOG_DEBUG(Service_Audio, "size 0x{:X}", size);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(result);
+    rb.Push(size);
 }
 
 void HwOpus::OpenHardwareOpusDecoderEx(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
-    const auto sample_rate = rp.Pop<u32>();
-    const auto channel_count = rp.Pop<u32>();
 
-    LOG_DEBUG(Audio, "called sample_rate={}, channel_count={}", sample_rate, channel_count);
+    auto params = rp.PopRaw<OpusParametersEx>();
+    auto transfer_memory_size{rp.Pop<u32>()};
+    auto transfer_memory_handle{ctx.GetCopyHandle(0)};
+    auto transfer_memory{
+        system.ApplicationProcess()->GetHandleTable().GetObject<Kernel::KTransferMemory>(
+            transfer_memory_handle)};
 
-    ASSERT_MSG(sample_rate == 48000 || sample_rate == 24000 || sample_rate == 16000 ||
-                   sample_rate == 12000 || sample_rate == 8000,
-               "Invalid sample rate");
-    ASSERT_MSG(channel_count == 1 || channel_count == 2, "Invalid channel count");
+    LOG_DEBUG(Service_Audio, "sample_rate {} channel_count {} transfer_memory_size 0x{:X}",
+              params.sample_rate, params.channel_count, transfer_memory_size);
 
-    const int num_stereo_streams = channel_count == 2 ? 1 : 0;
-    const auto mapping_table = CreateMappingTable(channel_count);
+    auto decoder{std::make_shared<IHardwareOpusDecoder>(system, impl.GetHardwareOpus())};
 
-    int error = 0;
-    OpusDecoderPtr decoder{
-        opus_multistream_decoder_create(sample_rate, static_cast<int>(channel_count), 1,
-                                        num_stereo_streams, mapping_table.data(), &error)};
-    if (error != OPUS_OK || decoder == nullptr) {
-        LOG_ERROR(Audio, "Failed to create Opus decoder (error={}).", error);
-        IPC::ResponseBuilder rb{ctx, 2};
-        // TODO(ogniK): Use correct error code
-        rb.Push(ResultUnknown);
-        return;
-    }
+    auto result =
+        decoder->Initialize(params, transfer_memory.GetPointerUnsafe(), transfer_memory_size);
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-    rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IHardwareOpusDecoderManager>(
-        system, OpusDecoderState{std::move(decoder), sample_rate, channel_count});
+    rb.Push(result);
+    rb.PushIpcInterface(decoder);
+}
+
+void HwOpus::GetWorkBufferSizeEx(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    auto params = rp.PopRaw<OpusParametersEx>();
+
+    u64 size{};
+    auto result = impl.GetWorkBufferSizeEx(params, size);
+
+    LOG_DEBUG(Service_Audio, "size 0x{:X}", size);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(result);
+    rb.Push(size);
 }
 
 void HwOpus::OpenHardwareOpusDecoderForMultiStreamEx(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+
+    auto input{ctx.ReadBuffer()};
     OpusMultiStreamParametersEx params;
-    std::memcpy(&params, ctx.ReadBuffer().data(), ctx.GetReadBufferSize());
+    std::memcpy(&params, input.data(), sizeof(OpusMultiStreamParametersEx));
 
-    const auto& sample_rate = params.sample_rate;
-    const auto& channel_count = params.channel_count;
+    auto transfer_memory_size{rp.Pop<u32>()};
+    auto transfer_memory_handle{ctx.GetCopyHandle(0)};
+    auto transfer_memory{
+        system.ApplicationProcess()->GetHandleTable().GetObject<Kernel::KTransferMemory>(
+            transfer_memory_handle)};
 
-    LOG_INFO(
-        Audio,
-        "called with sample_rate={}, channel_count={}, number_streams={}, number_stereo_streams={}",
-        sample_rate, channel_count, params.number_streams, params.number_stereo_streams);
+    LOG_DEBUG(Service_Audio,
+              "sample_rate {} channel_count {} total_stream_count {} stereo_stream_count {} "
+              "use_large_frame_size {}"
+              "transfer_memory_size 0x{:X}",
+              params.sample_rate, params.channel_count, params.total_stream_count,
+              params.stereo_stream_count, params.use_large_frame_size, transfer_memory_size);
 
-    ASSERT_MSG(sample_rate == 48000 || sample_rate == 24000 || sample_rate == 16000 ||
-                   sample_rate == 12000 || sample_rate == 8000,
-               "Invalid sample rate");
+    auto decoder{std::make_shared<IHardwareOpusDecoder>(system, impl.GetHardwareOpus())};
 
-    int error = 0;
-    OpusDecoderPtr decoder{opus_multistream_decoder_create(
-        sample_rate, static_cast<int>(channel_count), params.number_streams,
-        params.number_stereo_streams, params.channel_mappings.data(), &error)};
-    if (error != OPUS_OK || decoder == nullptr) {
-        LOG_ERROR(Audio, "Failed to create Opus decoder (error={}).", error);
-        IPC::ResponseBuilder rb{ctx, 2};
-        // TODO(ogniK): Use correct error code
-        rb.Push(ResultUnknown);
-        return;
-    }
+    auto result =
+        decoder->Initialize(params, transfer_memory.GetPointerUnsafe(), transfer_memory_size);
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-    rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IHardwareOpusDecoderManager>(
-        system, OpusDecoderState{std::move(decoder), sample_rate, channel_count});
+    rb.Push(result);
+    rb.PushIpcInterface(decoder);
 }
 
-HwOpus::HwOpus(Core::System& system_) : ServiceFramework{system_, "hwopus"} {
+void HwOpus::GetWorkBufferSizeForMultiStreamEx(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+
+    auto input{ctx.ReadBuffer()};
+    OpusMultiStreamParametersEx params;
+    std::memcpy(&params, input.data(), sizeof(OpusMultiStreamParametersEx));
+
+    u64 size{};
+    auto result = impl.GetWorkBufferSizeForMultiStreamEx(params, size);
+
+    LOG_DEBUG(Service_Audio,
+              "sample_rate {} channel_count {} total_stream_count {} stereo_stream_count {} "
+              "use_large_frame_size {} -- returned size 0x{:X}",
+              params.sample_rate, params.channel_count, params.total_stream_count,
+              params.stereo_stream_count, params.use_large_frame_size, size);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(result);
+    rb.Push(size);
+}
+
+void HwOpus::GetWorkBufferSizeExEx(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    auto params = rp.PopRaw<OpusParametersEx>();
+
+    u64 size{};
+    auto result = impl.GetWorkBufferSizeExEx(params, size);
+
+    LOG_DEBUG(Service_Audio, "size 0x{:X}", size);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(result);
+    rb.Push(size);
+}
+
+void HwOpus::GetWorkBufferSizeForMultiStreamExEx(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+
+    auto input{ctx.ReadBuffer()};
+    OpusMultiStreamParametersEx params;
+    std::memcpy(&params, input.data(), sizeof(OpusMultiStreamParametersEx));
+
+    u64 size{};
+    auto result = impl.GetWorkBufferSizeForMultiStreamExEx(params, size);
+
+    LOG_DEBUG(Service_Audio, "size 0x{:X}", size);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(result);
+    rb.Push(size);
+}
+
+HwOpus::HwOpus(Core::System& system_)
+    : ServiceFramework{system_, "hwopus"}, system{system_}, impl{system} {
     static const FunctionInfo functions[] = {
         {0, &HwOpus::OpenHardwareOpusDecoder, "OpenHardwareOpusDecoder"},
         {1, &HwOpus::GetWorkBufferSize, "GetWorkBufferSize"},
-        {2, nullptr, "OpenOpusDecoderForMultiStream"},
-        {3, nullptr, "GetWorkBufferSizeForMultiStream"},
+        {2, &HwOpus::OpenHardwareOpusDecoderForMultiStream, "OpenOpusDecoderForMultiStream"},
+        {3, &HwOpus::GetWorkBufferSizeForMultiStream, "GetWorkBufferSizeForMultiStream"},
         {4, &HwOpus::OpenHardwareOpusDecoderEx, "OpenHardwareOpusDecoderEx"},
         {5, &HwOpus::GetWorkBufferSizeEx, "GetWorkBufferSizeEx"},
         {6, &HwOpus::OpenHardwareOpusDecoderForMultiStreamEx,
          "OpenHardwareOpusDecoderForMultiStreamEx"},
         {7, &HwOpus::GetWorkBufferSizeForMultiStreamEx, "GetWorkBufferSizeForMultiStreamEx"},
         {8, &HwOpus::GetWorkBufferSizeExEx, "GetWorkBufferSizeExEx"},
-        {9, nullptr, "GetWorkBufferSizeForMultiStreamExEx"},
+        {9, &HwOpus::GetWorkBufferSizeForMultiStreamExEx, "GetWorkBufferSizeForMultiStreamExEx"},
     };
     RegisterHandlers(functions);
 }

src/core/hle/service/audio/hwopus.h

@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include "audio_core/opus/decoder_manager.h"
 #include "core/hle/service/service.h"
 
 namespace Core {
@@ -11,18 +12,6 @@ class System;
 
 namespace Service::Audio {
 
-struct OpusMultiStreamParametersEx {
-    u32 sample_rate;
-    u32 channel_count;
-    u32 number_streams;
-    u32 number_stereo_streams;
-    u32 use_large_frame_size;
-    u32 padding;
-    std::array<u8, 0x100> channel_mappings;
-};
-static_assert(sizeof(OpusMultiStreamParametersEx) == 0x118,
-              "OpusMultiStreamParametersEx has incorrect size");
-
 class HwOpus final : public ServiceFramework<HwOpus> {
 public:
     explicit HwOpus(Core::System& system_);
@@ -30,12 +19,18 @@ public:
 
 private:
     void OpenHardwareOpusDecoder(HLERequestContext& ctx);
-    void OpenHardwareOpusDecoderEx(HLERequestContext& ctx);
-    void OpenHardwareOpusDecoderForMultiStreamEx(HLERequestContext& ctx);
     void GetWorkBufferSize(HLERequestContext& ctx);
+    void OpenHardwareOpusDecoderForMultiStream(HLERequestContext& ctx);
+    void GetWorkBufferSizeForMultiStream(HLERequestContext& ctx);
+    void OpenHardwareOpusDecoderEx(HLERequestContext& ctx);
     void GetWorkBufferSizeEx(HLERequestContext& ctx);
-    void GetWorkBufferSizeExEx(HLERequestContext& ctx);
+    void OpenHardwareOpusDecoderForMultiStreamEx(HLERequestContext& ctx);
     void GetWorkBufferSizeForMultiStreamEx(HLERequestContext& ctx);
+    void GetWorkBufferSizeExEx(HLERequestContext& ctx);
+    void GetWorkBufferSizeForMultiStreamExEx(HLERequestContext& ctx);
+
+    Core::System& system;
+    AudioCore::OpusDecoder::OpusDecoderManager impl;
 };
 
 } // namespace Service::Audio

src/core/hle/service/filesystem/fsp_srv.cpp

@@ -329,6 +329,7 @@ public:
             {13, &IFileSystem::CleanDirectoryRecursively, "CleanDirectoryRecursively"},
             {14, &IFileSystem::GetFileTimeStampRaw, "GetFileTimeStampRaw"},
             {15, nullptr, "QueryEntry"},
+            {16, &IFileSystem::GetFileSystemAttribute, "GetFileSystemAttribute"},
         };
         RegisterHandlers(functions);
     }
@@ -521,6 +522,46 @@ public:
         rb.PushRaw(vfs_timestamp);
     }
 
+    void GetFileSystemAttribute(HLERequestContext& ctx) {
+        LOG_WARNING(Service_FS, "(STUBBED) called");
+
+        struct FileSystemAttribute {
+            u8 dir_entry_name_length_max_defined;
+            u8 file_entry_name_length_max_defined;
+            u8 dir_path_name_length_max_defined;
+            u8 file_path_name_length_max_defined;
+            INSERT_PADDING_BYTES_NOINIT(0x5);
+            u8 utf16_dir_entry_name_length_max_defined;
+            u8 utf16_file_entry_name_length_max_defined;
+            u8 utf16_dir_path_name_length_max_defined;
+            u8 utf16_file_path_name_length_max_defined;
+            INSERT_PADDING_BYTES_NOINIT(0x18);
+            s32 dir_entry_name_length_max;
+            s32 file_entry_name_length_max;
+            s32 dir_path_name_length_max;
+            s32 file_path_name_length_max;
+            INSERT_PADDING_WORDS_NOINIT(0x5);
+            s32 utf16_dir_entry_name_length_max;
+            s32 utf16_file_entry_name_length_max;
+            s32 utf16_dir_path_name_length_max;
+            s32 utf16_file_path_name_length_max;
+            INSERT_PADDING_WORDS_NOINIT(0x18);
+            INSERT_PADDING_WORDS_NOINIT(0x1);
+        };
+        static_assert(sizeof(FileSystemAttribute) == 0xc0,
+                      "FileSystemAttribute has incorrect size");
+
+        FileSystemAttribute savedata_attribute{};
+        savedata_attribute.dir_entry_name_length_max_defined = true;
+        savedata_attribute.file_entry_name_length_max_defined = true;
+        savedata_attribute.dir_entry_name_length_max = 0x40;
+        savedata_attribute.file_entry_name_length_max = 0x40;
+
+        IPC::ResponseBuilder rb{ctx, 50};
+        rb.Push(ResultSuccess);
+        rb.PushRaw(savedata_attribute);
+    }
+
 private:
     VfsDirectoryServiceWrapper backend;
     SizeGetter size;
@@ -698,7 +739,7 @@ FSP_SRV::FSP_SRV(Core::System& system_)
         {19, nullptr, "FormatSdCardFileSystem"},
         {21, nullptr, "DeleteSaveDataFileSystem"},
         {22, &FSP_SRV::CreateSaveDataFileSystem, "CreateSaveDataFileSystem"},
-        {23, nullptr, "CreateSaveDataFileSystemBySystemSaveDataId"},
+        {23, &FSP_SRV::CreateSaveDataFileSystemBySystemSaveDataId, "CreateSaveDataFileSystemBySystemSaveDataId"},
         {24, nullptr, "RegisterSaveDataFileSystemAtomicDeletion"},
         {25, nullptr, "DeleteSaveDataFileSystemBySaveDataSpaceId"},
         {26, nullptr, "FormatSdCardDryRun"},
@@ -712,7 +753,7 @@ FSP_SRV::FSP_SRV(Core::System& system_)
         {35, nullptr, "CreateSaveDataFileSystemByHashSalt"},
         {36, nullptr, "OpenHostFileSystemWithOption"},
         {51, &FSP_SRV::OpenSaveDataFileSystem, "OpenSaveDataFileSystem"},
-        {52, nullptr, "OpenSaveDataFileSystemBySystemSaveDataId"},
+        {52, &FSP_SRV::OpenSaveDataFileSystemBySystemSaveDataId, "OpenSaveDataFileSystemBySystemSaveDataId"},
         {53, &FSP_SRV::OpenReadOnlySaveDataFileSystem, "OpenReadOnlySaveDataFileSystem"},
         {57, nullptr, "ReadSaveDataFileSystemExtraDataBySaveDataSpaceId"},
         {58, nullptr, "ReadSaveDataFileSystemExtraData"},
@@ -870,6 +911,21 @@ void FSP_SRV::CreateSaveDataFileSystem(HLERequestContext& ctx) {
     rb.Push(ResultSuccess);
 }
 
+void FSP_SRV::CreateSaveDataFileSystemBySystemSaveDataId(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+
+    auto save_struct = rp.PopRaw<FileSys::SaveDataAttribute>();
+    [[maybe_unused]] auto save_create_struct = rp.PopRaw<std::array<u8, 0x40>>();
+
+    LOG_DEBUG(Service_FS, "called save_struct = {}", save_struct.DebugInfo());
+
+    FileSys::VirtualDir save_data_dir{};
+    fsc.CreateSaveData(&save_data_dir, FileSys::SaveDataSpaceId::NandSystem, save_struct);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
 void FSP_SRV::OpenSaveDataFileSystem(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
 
@@ -916,6 +972,11 @@ void FSP_SRV::OpenSaveDataFileSystem(HLERequestContext& ctx) {
     rb.PushIpcInterface<IFileSystem>(std::move(filesystem));
 }
 
+void FSP_SRV::OpenSaveDataFileSystemBySystemSaveDataId(HLERequestContext& ctx) {
+    LOG_WARNING(Service_FS, "(STUBBED) called, delegating to 51 OpenSaveDataFilesystem");
+    OpenSaveDataFileSystem(ctx);
+}
+
 void FSP_SRV::OpenReadOnlySaveDataFileSystem(HLERequestContext& ctx) {
     LOG_WARNING(Service_FS, "(STUBBED) called, delegating to 51 OpenSaveDataFilesystem");
     OpenSaveDataFileSystem(ctx);

src/core/hle/service/filesystem/fsp_srv.h

@@ -39,7 +39,9 @@ private:
     void OpenFileSystemWithPatch(HLERequestContext& ctx);
     void OpenSdCardFileSystem(HLERequestContext& ctx);
     void CreateSaveDataFileSystem(HLERequestContext& ctx);
+    void CreateSaveDataFileSystemBySystemSaveDataId(HLERequestContext& ctx);
     void OpenSaveDataFileSystem(HLERequestContext& ctx);
+    void OpenSaveDataFileSystemBySystemSaveDataId(HLERequestContext& ctx);
     void OpenReadOnlySaveDataFileSystem(HLERequestContext& ctx);
     void OpenSaveDataInfoReaderBySaveDataSpaceId(HLERequestContext& ctx);
     void OpenSaveDataInfoReaderOnlyCacheStorage(HLERequestContext& ctx);

src/core/hle/service/hid/controllers/npad.cpp

@@ -346,6 +346,7 @@ void Controller_NPad::InitNewlyAddedController(Core::HID::NpadIdType npad_id) {
     }
     SignalStyleSetChangedEvent(npad_id);
     WriteEmptyEntry(controller.shared_memory);
+    hid_core.SetLastActiveController(npad_id);
 }
 
 void Controller_NPad::OnInit() {