[android] Replace Oboe audio with SDL3 audio (#4338)

Supersedes #4335.

Replaces the Oboe audio backend with SDL3, since we already support it.
A few caveats:

- SDL defines a JVM OnLoad method already, so we have to instead hijack
  NativeLibrary for id_cache initialization
- This also means some internal fields in Double/Integer/Boolean (namely
  `value`) can't be accessed, so I switched those to methods for now.
- SDL Java sources are pulled in from the CI package.
- Since we can't use SDLActivity, `SDL.setupJNI()` handles everything

Signed-off-by: crueter <crueter@eden-emu.dev>

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

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

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4338
Reviewed-by: Lizzie and Samuel <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

src/android/app/build.gradle.kts

@@ -272,6 +272,13 @@ android {
         resValue("string", "app_name_suffixed", "$currentName$suffix")
         resValue("string", "app_name", "Eden$suffix")
     }
+
+    sourceSets {
+        named("main") {
+            java.srcDir("${edenDir}/externals/generated/sdl/java")
+            kotlin.srcDir("${edenDir}/externals/generated/sdl/java")
+        }
+    }
 }
 
 idea {

src/android/app/proguard-rules.pro

@@ -9,6 +9,9 @@
 -keep class org.ini4j.spi.IniBuilder
 -keep class org.ini4j.spi.IniFormatter
 
+-keep class org.libsdl.app.** { *; }
+-keepclassmembers class org.libsdl.app.** { *; }
+
 # Suppress warnings for R8
 -dontwarn org.bouncycastle.jsse.BCSSLParameters
 -dontwarn org.bouncycastle.jsse.BCSSLSocket

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

@@ -16,6 +16,7 @@ import android.widget.TextView
 import androidx.annotation.Keep
 import androidx.core.net.toUri
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import org.libsdl.app.SDL
 import java.lang.ref.WeakReference
 import org.yuzu.yuzu_emu.activities.EmulationActivity
 import org.yuzu.yuzu_emu.fragments.CoreErrorDialogFragment
@@ -52,6 +53,8 @@ object NativeLibrary {
     init {
         try {
             System.loadLibrary("yuzu-android")
+            SDL.setupJNI()
+            initJvm()
         } catch (ex: UnsatisfiedLinkError) {
             error("[NativeLibrary] $ex")
         }
@@ -367,6 +370,7 @@ object NativeLibrary {
         NetPlayManager.clearChat()
     }
 
+    external fun initJvm()
     external fun initMultiplayer()
 
     @Keep

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

@@ -22,7 +22,7 @@ add_library(yuzu-android SHARED
 set_property(TARGET yuzu-android PROPERTY IMPORTED_LOCATION ${FFmpeg_LIBRARY_DIR})
 
 target_link_libraries(yuzu-android PRIVATE audio_core common core input_common frontend_common video_core)
-target_link_libraries(yuzu-android PRIVATE android camera2ndk EGL glad jnigraphics log)
+target_link_libraries(yuzu-android PRIVATE android camera2ndk EGL glad jnigraphics log GLESv2)
 if (ARCHITECTURE_arm64)
     target_link_libraries(yuzu-android PRIVATE adrenotools)
 endif()

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

@@ -1730,6 +1730,15 @@ jint Java_org_yuzu_yuzu_1emu_NativeLibrary_loadAmiibo(JNIEnv* env, jobject jobj,
     return static_cast<jint>(info);
 }
 
+extern "C" JNIEXPORT void JNICALL
+Java_org_yuzu_yuzu_1emu_NativeLibrary_initJvm(JNIEnv *env, jclass clazz) {
+    JavaVM *vm;
+    if (env->GetJavaVM(&vm) != JNI_OK)
+        return;
+
+    Common::Android::Initialize(vm, env);
+}
+
 JNIEXPORT void JNICALL
 Java_org_yuzu_yuzu_1emu_NativeLibrary_initMultiplayer(
         JNIEnv* env, [[maybe_unused]] jobject obj) {

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

@@ -800,7 +800,6 @@
     <string name="theme_mode_dark">تاریک</string>
 
     <!-- Audio output engines -->
-    <string name="oboe">oboe</string>
     <string name="cubeb">cubeb</string>
 
     <!-- Anisotropic filtering options -->

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

@@ -465,13 +465,13 @@
 
     <string-array name="outputEngineEntries">
         <item>@string/auto</item>
-        <item>@string/oboe</item>
+        <item>@string/sdl3</item>
         <item>@string/cubeb</item>
         <item>@string/string_null</item>
     </string-array>
     <integer-array name="outputEngineValues">
         <item>0</item>
-        <item>4</item>
+        <item>2</item>
         <item>1</item>
         <item>3</item>
     </integer-array>

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

@@ -1240,7 +1240,7 @@
     <string name="theme_mode_dark">Dark</string>
 
     <!-- Audio output engines -->
-    <string name="oboe" translatable="false">oboe</string>
+    <string name="sdl3" translatable="false">SDL3</string>
     <string name="cubeb" translatable="false">cubeb</string>
 
     <!-- Anisotropic filtering options -->