Add Stereoscopy settings UI

src/android/app/src/main/java/org/citra/citra_emu/features/settings/model/Settings.java

@@ -20,6 +20,7 @@ public class Settings {
     public static final String SECTION_CAMERA = "Camera";
     public static final String SECTION_CONTROLS = "Controls";
     public static final String SECTION_RENDERER = "Renderer";
+    public static final String SECTION_LAYOUT = "Layout";
     public static final String SECTION_AUDIO = "Audio";
     public static final String SECTION_DEBUG = "Debug";
 
@@ -28,7 +29,7 @@ public class Settings {
     private static final Map<String, List<String>> configFileSectionsMap = new HashMap<>();
 
     static {
-        configFileSectionsMap.put(SettingsFile.FILE_NAME_CONFIG, Arrays.asList(SECTION_PREMIUM, SECTION_CORE, SECTION_SYSTEM, SECTION_CAMERA, SECTION_CONTROLS, SECTION_RENDERER, SECTION_AUDIO, SECTION_DEBUG));
+        configFileSectionsMap.put(SettingsFile.FILE_NAME_CONFIG, Arrays.asList(SECTION_PREMIUM, SECTION_CORE, SECTION_SYSTEM, SECTION_CAMERA, SECTION_CONTROLS, SECTION_RENDERER, SECTION_LAYOUT, SECTION_AUDIO, SECTION_DEBUG));
     }
 
     /**

src/android/app/src/main/java/org/citra/citra_emu/features/settings/ui/SettingsFragmentPresenter.java

@@ -355,11 +355,18 @@ public final class SettingsFragmentPresenter {
         Setting filterMode = rendererSection.getSetting(SettingsFile.KEY_FILTER_MODE);
         Setting useAsynchronousGpuEmulation = rendererSection.getSetting(SettingsFile.KEY_USE_ASYNCHRONOUS_GPU_EMULATION);
         Setting shadersAccurateMul = rendererSection.getSetting(SettingsFile.KEY_SHADERS_ACCURATE_MUL);
+        Setting render3dMode = rendererSection.getSetting(SettingsFile.KEY_RENDER_3D);
+        Setting factor3d = rendererSection.getSetting(SettingsFile.KEY_FACTOR_3D);
 
+        sl.add(new HeaderSetting(null, null, R.string.renderer, 0));
         sl.add(new SliderSetting(SettingsFile.KEY_RESOLUTION_FACTOR, Settings.SECTION_RENDERER, R.string.internal_resolution, R.string.internal_resolution_description, 1, 4, "x", 1, resolutionFactor));
         sl.add(new CheckBoxSetting(SettingsFile.KEY_FILTER_MODE, Settings.SECTION_RENDERER, R.string.linear_filtering, R.string.linear_filtering_description, true, filterMode));
         sl.add(new CheckBoxSetting(SettingsFile.KEY_USE_ASYNCHRONOUS_GPU_EMULATION, Settings.SECTION_RENDERER, R.string.asynchronous_gpu, R.string.asynchronous_gpu_description, true, useAsynchronousGpuEmulation));
         sl.add(new CheckBoxSetting(SettingsFile.KEY_SHADERS_ACCURATE_MUL, Settings.SECTION_RENDERER, R.string.shaders_accurate_mul, R.string.shaders_accurate_mul_description, false, shadersAccurateMul));
+
+        sl.add(new HeaderSetting(null, null, R.string.stereoscopy, 0));
+        sl.add(new SingleChoiceSetting(SettingsFile.KEY_RENDER_3D, Settings.SECTION_RENDERER, R.string.render3d, 0, R.array.render3dModes, R.array.render3dValues, 0, render3dMode));
+        sl.add(new SliderSetting(SettingsFile.KEY_FACTOR_3D, Settings.SECTION_RENDERER, R.string.factor3d, R.string.factor3d_description, 0, 100, "%", 0, factor3d));
     }
 
     private void addAudioSettings(ArrayList<SettingsItem> sl) {

src/android/app/src/main/java/org/citra/citra_emu/features/settings/utils/SettingsFile.java

@@ -50,7 +50,9 @@ public final class SettingsFile {
     public static final String KEY_BACKGROUND_RED = "bg_red";
     public static final String KEY_BACKGROUND_BLUE = "bg_blue";
     public static final String KEY_BACKGROUND_GREEN = "bg_green";
+    public static final String KEY_RENDER_3D = "render_3d";
     public static final String KEY_FACTOR_3D = "factor_3d";
+    public static final String KEY_PP_SHADER_NAME = "pp_shader_name";
     public static final String KEY_FILTER_MODE = "filter_mode";
     public static final String KEY_TEXTURE_FILTER_NAME = "texture_filter_name";
     public static final String KEY_USE_ASYNCHRONOUS_GPU_EMULATION = "use_asynchronous_gpu_emulation";

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

@@ -132,10 +132,13 @@ void Config::ReadValues() {
         sdl2_config->GetInteger("Renderer", "render_3d", 0));
     Settings::values.factor_3d =
         static_cast<u8>(sdl2_config->GetInteger("Renderer", "factor_3d", 0));
-    Settings::values.pp_shader_name = sdl2_config->GetString(
+    std::string default_shader = "none (builtin)";
-        "Renderer", "pp_shader_name",
+    if (Settings::values.render_3d == Settings::StereoRenderOption::Anaglyph)
-        (Settings::values.render_3d == Settings::StereoRenderOption::Anaglyph) ? "dubois (builtin)"
+        default_shader = "dubois (builtin)";
-                                                                               : "none (builtin)");
+    else if (Settings::values.render_3d == Settings::StereoRenderOption::Interlaced)
+        default_shader = "horizontal (builtin)";
+    Settings::values.pp_shader_name =
+            sdl2_config->GetString("Renderer", "pp_shader_name", default_shader);
     Settings::values.filter_mode = sdl2_config->GetBoolean("Renderer", "filter_mode", true);
 
     Settings::values.bg_red = static_cast<float>(sdl2_config->GetReal("Renderer", "bg_red", 0.0));

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

@@ -140,7 +140,7 @@ bg_blue =
 bg_green =
 
 # Whether and how Stereoscopic 3D should be rendered
-# 0 (default): Off, 1: Side by Side, 2: Anaglyph
+# 0 (default): Off, 1: Side by Side, 2: Anaglyph, 3: Interlaced
 render_3d =
 
 # Change 3D Intensity

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

@@ -153,4 +153,18 @@
         <item>1</item>
         <item>2</item>
     </integer-array>
+
+    <string-array name="render3dModes">
+        <item>Off</item>
+        <item>Side by Side</item>
+        <item>Anaglyph</item>
+        <item>Interlaced</item>
+    </string-array>
+
+    <integer-array name="render3dValues">
+        <item>0</item>
+        <item>1</item>
+        <item>2</item>
+        <item>3</item>
+    </integer-array>
 </resources>

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

@@ -66,6 +66,7 @@
     <string name="image_flip">Image Flip</string>
 
     <!-- Graphics settings strings -->
+    <string name="renderer">Renderer</string>
     <string name="vsync">Enable V-Sync</string>
     <string name="vsync_description">Synchronizes the game frame rate to the refresh rate of your device.</string>
     <string name="linear_filtering">Enable linear filtering</string>
@@ -88,6 +89,10 @@
     <string name="internal_resolution_description">Specifies the resolution used to render at. A high resolution will improve visual quality a lot but is also quite heavy on performance and might cause glitches in certain games.</string>
     <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="debug_warning">Warning: Modifying these settings will slow emulation</string>
+    <string name="stereoscopy">Stereoscopy</string>
+    <string name="render3d">Stereoscopic 3D Mode</string>
+    <string name="factor3d">Depth</string>
+    <string name="factor3d_description">Specifies the value of the 3D slider. This should be set to higher than 0% when Stereoscopic 3D is enabled.</string>
 
     <!-- Premium strings -->
     <string name="premium_text">Premium</string>