android: Expose audio output engine setting

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

@@ -8,6 +8,7 @@ enum class StringSetting(
     override val section: String,
     override val defaultValue: String
 ) : AbstractStringSetting {
+    AUDIO_OUTPUT_ENGINE("output_engine", Settings.SECTION_AUDIO, "auto"),
     CUSTOM_RTC("custom_rtc", Settings.SECTION_SYSTEM, "0");
 
     override var string: String = defaultValue

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

@@ -7,20 +7,20 @@ import org.yuzu.yuzu_emu.features.settings.model.AbstractSetting
 import org.yuzu.yuzu_emu.features.settings.model.AbstractStringSetting
 
 class StringSingleChoiceSetting(
-    val key: String? = null,
     setting: AbstractSetting?,
     titleId: Int,
     descriptionId: Int,
-    val choicesId: Array<String>,
+    val choices: Array<String>,
-    private val valuesId: Array<String>?,
+    val values: Array<String>?,
+    val key: String? = null,
     private val defaultValue: String? = null
 ) : SettingsItem(setting, titleId, descriptionId) {
     override val type = TYPE_STRING_SINGLE_CHOICE
 
     fun getValueAt(index: Int): String? {
-        if (valuesId == null) return null
+        if (values == null) return null
-        return if (index >= 0 && index < valuesId.size) {
+        return if (index >= 0 && index < values.size) {
-            valuesId[index]
+            values[index]
         } else {
             ""
         }
@@ -36,8 +36,8 @@ class StringSingleChoiceSetting(
     val selectValueIndex: Int
         get() {
             val selectedValue = selectedValue
-            for (i in valuesId!!.indices) {
+            for (i in values!!.indices) {
-                if (valuesId[i] == selectedValue) {
+                if (values[i] == selectedValue) {
                     return i
                 }
             }

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

@@ -138,7 +138,7 @@ class SettingsAdapter(
         clickedItem = item
         dialog = MaterialAlertDialogBuilder(context)
             .setTitle(item.nameId)
-            .setSingleChoiceItems(item.choicesId, item.selectValueIndex, this)
+            .setSingleChoiceItems(item.choices, item.selectValueIndex, this)
             .show()
     }
 

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

@@ -353,18 +353,31 @@ class SettingsFragmentPresenter(private val fragmentView: SettingsFragmentView)
 
     private fun addAudioSettings(sl: ArrayList<SettingsItem>) {
         settingsActivity.setToolbarTitle(settingsActivity.getString(R.string.preferences_audio))
-        sl.add(
+        sl.apply {
-            SliderSetting(
+            add(
-                IntSetting.AUDIO_VOLUME,
+                StringSingleChoiceSetting(
-                R.string.audio_volume,
+                    StringSetting.AUDIO_OUTPUT_ENGINE,
-                R.string.audio_volume_description,
+                    R.string.audio_output_engine,
-                0,
+                    0,
-                100,
+                    settingsActivity.resources.getStringArray(R.array.outputEngineEntries),
-                "%",
+                    settingsActivity.resources.getStringArray(R.array.outputEngineValues),
-                IntSetting.AUDIO_VOLUME.key,
+                    StringSetting.AUDIO_OUTPUT_ENGINE.key,
-                IntSetting.AUDIO_VOLUME.defaultValue
+                    StringSetting.AUDIO_OUTPUT_ENGINE.defaultValue
+                )
             )
-        )
+            add(
+                SliderSetting(
+                    IntSetting.AUDIO_VOLUME,
+                    R.string.audio_volume,
+                    R.string.audio_volume_description,
+                    0,
+                    100,
+                    "%",
+                    IntSetting.AUDIO_VOLUME.key,
+                    IntSetting.AUDIO_VOLUME.defaultValue
+                )
+            )
+        }
     }
 
     private fun addThemeSettings(sl: ArrayList<SettingsItem>) {

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

@@ -26,6 +26,14 @@ class SingleChoiceViewHolder(val binding: ListItemSettingBinding, adapter: Setti
             for (i in values.indices) {
                 if (values[i] == item.selectedValue) {
                     binding.textSettingDescription.text = resMgr.getStringArray(item.choicesId)[i]
+                    return
+                }
+            }
+        } else if (item is StringSingleChoiceSetting) {
+            for (i in item.values!!.indices) {
+                if (item.values[i] == item.selectedValue) {
+                    binding.textSettingDescription.text = item.choices[i]
+                    return
                 }
             }
         } else {

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

@@ -236,4 +236,15 @@
         <item>2</item>
     </integer-array>
 
+    <string-array name="outputEngineEntries">
+        <item>@string/auto</item>
+        <item>@string/cubeb</item>
+        <item>@string/string_null</item>
+    </string-array>
+    <string-array name="outputEngineValues">
+        <item>auto</item>
+        <item>cubeb</item>
+        <item>null</item>
+    </string-array>
+
 </resources>

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

@@ -185,6 +185,7 @@
     <string name="fastmem">Fastmem</string>
 
     <!-- Audio settings strings -->
+    <string name="audio_output_engine">Output engine</string>
     <string name="audio_volume">Volume</string>
     <string name="audio_volume_description">Specifies the volume of audio output.</string>
 
@@ -203,6 +204,7 @@
     <string name="learn_more">Learn more</string>
     <string name="auto">Auto</string>
     <string name="submit">Submit</string>
+    <string name="string_null">Null</string>
 
     <!-- GPU driver installation -->
     <string name="select_gpu_driver">Select GPU driver</string>
@@ -373,6 +375,9 @@
     <string name="theme_mode_light">Light</string>
     <string name="theme_mode_dark">Dark</string>
 
+    <!-- Audio output engines -->
+    <string name="cubeb">cubeb</string>
+
     <!-- Black backgrounds theme -->
     <string name="use_black_backgrounds">Black backgrounds</string>
     <string name="use_black_backgrounds_description">When using the dark theme, apply black backgrounds.</string>