android: Frontend: Fix rendering aspect ratio & add a setting for it.

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

@@ -159,11 +159,13 @@ public final class SettingsFragmentPresenter {
         Setting rendererBackend = rendererSection.getSetting(SettingsFile.KEY_RENDERER_BACKEND);
         Setting rendererAccuracy = rendererSection.getSetting(SettingsFile.KEY_RENDERER_ACCURACY);
         Setting rendererReolution = rendererSection.getSetting(SettingsFile.KEY_RENDERER_RESOLUTION);
+        Setting rendererAspectRation = rendererSection.getSetting(SettingsFile.KEY_RENDERER_ASPECT_RATIO);
         Setting rendererAsynchronousShaders = rendererSection.getSetting(SettingsFile.KEY_RENDERER_ASYNCHRONOUS_SHADERS);
 
         sl.add(new SingleChoiceSetting(SettingsFile.KEY_RENDERER_BACKEND, Settings.SECTION_RENDERER, R.string.renderer_api, 0, R.array.rendererApiNames, R.array.rendererApiValues, 0, rendererBackend));
         sl.add(new SingleChoiceSetting(SettingsFile.KEY_RENDERER_ACCURACY, Settings.SECTION_RENDERER, R.string.renderer_accuracy, 0, R.array.rendererAccuracyNames, R.array.rendererAccuracyValues, 1, rendererAccuracy));
         sl.add(new SingleChoiceSetting(SettingsFile.KEY_RENDERER_RESOLUTION, Settings.SECTION_RENDERER, R.string.renderer_resolution, 0, R.array.rendererResolutionNames, R.array.rendererResolutionValues, 2, rendererReolution));
+        sl.add(new SingleChoiceSetting(SettingsFile.KEY_RENDERER_ASPECT_RATIO, Settings.SECTION_RENDERER, R.string.renderer_aspect_ratio, 0, R.array.rendererAspectRatioNames, R.array.rendererAspectRatioValues, 0, rendererAspectRation));
         sl.add(new CheckBoxSetting(SettingsFile.KEY_RENDERER_ASYNCHRONOUS_SHADERS, Settings.SECTION_RENDERER, R.string.renderer_asynchronous_shaders, R.string.renderer_asynchronous_shaders_description, false, rendererAsynchronousShaders));
     }
 

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/utils/SettingsFile.java

@@ -44,6 +44,7 @@ public final class SettingsFile {
     public static final String KEY_RENDERER_BACKEND = "backend";
     // Renderer
     public static final String KEY_RENDERER_RESOLUTION = "resolution_setup";
+    public static final String KEY_RENDERER_ASPECT_RATIO = "aspect_ratio";
     public static final String KEY_RENDERER_ACCURACY = "gpu_accuracy";
     public static final String KEY_RENDERER_ASYNCHRONOUS_SHADERS = "use_asynchronous_shaders";
     public static final String KEY_RENDERER_USE_SPEED_LIMIT = "use_speed_limit";

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

@@ -294,7 +294,7 @@ anti_aliasing =
 fullscreen_mode =
 
 # Aspect ratio
-# 0: Default (16:9), 1: Force 4:3, 2: Force 21:9, 3: Stretch to Window
+# 0: Default (16:9), 1: Force 4:3, 2: Force 21:9, 3: Force 16:10, 4: Stretch to Window
 aspect_ratio =
 
 # Anisotropic filtering

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

@@ -46,6 +46,9 @@ EmuWindow_Android::EmuWindow_Android(InputCommon::InputSubsystem* input_subsyste
     window_width = ANativeWindow_getWidth(surface_);
     window_height = ANativeWindow_getHeight(surface_);
 
+    // Ensures that we emulate with the correct aspect ratio.
+    UpdateCurrentFramebufferLayout(window_width, window_height);
+
     host_window = surface_;
     window_info.type = Core::Frontend::WindowSystemType::Android;
     window_info.render_surface = reinterpret_cast<void*>(host_window);

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

@@ -140,6 +140,22 @@
         <item>5</item>
     </integer-array>
 
+    <string-array name="rendererAspectRatioNames">
+        <item>Default (16:9)</item>
+        <item>Force 4:3</item>
+        <item>Force 21:9</item>
+        <item>Force 16:10</item>
+        <item>Stretch to Window</item>
+    </string-array>
+
+    <integer-array name="rendererAspectRatioValues">
+        <item>0</item>
+        <item>1</item>
+        <item>2</item>
+        <item>3</item>
+        <item>4</item>
+    </integer-array>
+
     <string-array name="cpuAccuracyNames">
         <item>Auto</item>
         <item>Accurate</item>

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

@@ -28,6 +28,7 @@
     <string name="renderer_api">API</string>
     <string name="renderer_accuracy">Accuracy level</string>
     <string name="renderer_resolution">Resolution</string>
+    <string name="renderer_aspect_ratio">Aspect Ratio</string>
     <string name="renderer_asynchronous_shaders">Use asynchronous shaders</string>
     <string name="renderer_asynchronous_shaders_description">Compiles shaders asynchronously, which will reduce stutter but may introduce glitches.</string>
 

src/yuzu_cmd/default_ini.h

@@ -318,7 +318,7 @@ anti_aliasing =
 fullscreen_mode =
 
 # Aspect ratio
-# 0: Default (16:9), 1: Force 4:3, 2: Force 21:9, 3: Stretch to Window
+# 0: Default (16:9), 1: Force 4:3, 2: Force 21:9, 3: Force 16:10, 4: Stretch to Window
 aspect_ratio =
 
 # Anisotropic filtering