android: Expose async shaders in the GUI

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

@@ -357,6 +357,7 @@ public final class SettingsFragmentPresenter {
         SettingSection rendererSection = mSettings.getSection(Settings.SECTION_RENDERER);
         Setting graphicsApi = rendererSection.getSetting(SettingsFile.KEY_GRAPHICS_API);
         Setting spvShaderGen = rendererSection.getSetting(SettingsFile.KEY_SPIRV_SHADER_GEN);
+        Setting asyncShaders = rendererSection.getSetting(SettingsFile.KEY_ASYNC_SHADERS);
         Setting resolutionFactor = rendererSection.getSetting(SettingsFile.KEY_RESOLUTION_FACTOR);
         Setting filterMode = rendererSection.getSetting(SettingsFile.KEY_FILTER_MODE);
         Setting shadersAccurateMul = rendererSection.getSetting(SettingsFile.KEY_SHADERS_ACCURATE_MUL);
@@ -375,6 +376,7 @@ public final class SettingsFragmentPresenter {
         sl.add(new HeaderSetting(null, null, R.string.renderer, 0));
         sl.add(new SingleChoiceSetting(SettingsFile.KEY_GRAPHICS_API, Settings.SECTION_RENDERER, R.string.graphics_api, 0, R.array.graphicsApiNames, R.array.graphicsApiValues, 2, graphicsApi));
         sl.add(new CheckBoxSetting(SettingsFile.KEY_SPIRV_SHADER_GEN, Settings.SECTION_RENDERER, R.string.spirv_shader_gen, R.string.spirv_shader_gen_description, true, spvShaderGen));
+        sl.add(new CheckBoxSetting(SettingsFile.KEY_ASYNC_SHADERS, Settings.SECTION_RENDERER, R.string.async_shaders, R.string.async_shaders_description, false, asyncShaders));
         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_SHADERS_ACCURATE_MUL, Settings.SECTION_RENDERER, R.string.shaders_accurate_mul, R.string.shaders_accurate_mul_description, false, shadersAccurateMul));

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

@@ -42,6 +42,7 @@ public final class SettingsFile {
     public static final String KEY_GRAPHICS_API = "graphics_api";
     public static final String KEY_SPIRV_SHADER_GEN = "spirv_shader_gen";
     public static final String KEY_RENDERER_DEBUG = "renderer_debug";
+    public static final String KEY_ASYNC_SHADERS = "async_shader_compilation";
     public static final String KEY_HW_RENDERER = "use_hw_renderer";
     public static final String KEY_HW_SHADER = "use_hw_shader";
     public static final String KEY_SHADERS_ACCURATE_MUL = "shaders_accurate_mul";

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

@@ -116,13 +116,15 @@ void Config::ReadValues() {
     // Renderer
     Settings::values.graphics_api =
         static_cast<Settings::GraphicsAPI>(sdl2_config->GetInteger("Renderer", "graphics_api", 2));
+    Settings::values.renderer_debug = sdl2_config->GetBoolean("Renderer", "renderer_debug", false);
     Settings::values.async_command_recording =
-        sdl2_config->GetBoolean("Renderer", "async_command_recording", true);
+        sdl2_config->GetBoolean("Renderer", "async_command_recording", true) &&
+        !Settings::values
+             .renderer_debug; ///< Enabling debug renderer force disables async recording
     Settings::values.async_shader_compilation =
         sdl2_config->GetBoolean("Renderer", "async_shader_compilation", false);
     Settings::values.spirv_shader_gen =
         sdl2_config->GetBoolean("Renderer", "spirv_shader_gen", true);
-    Settings::values.renderer_debug = sdl2_config->GetBoolean("Renderer", "renderer_debug", false);
     Settings::values.use_hw_renderer = sdl2_config->GetBoolean("Renderer", "use_hw_renderer", true);
     Settings::values.use_hw_shader = sdl2_config->GetBoolean("Renderer", "use_hw_shader", true);
     Settings::values.shaders_accurate_mul =

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

@@ -75,6 +75,8 @@
     <string name="graphics_api">Graphics API</string>
     <string name="spirv_shader_gen">Enable SPIR-V shader generation</string>
     <string name="spirv_shader_gen_description">Emits the fragment shader used to emulate PICA using SPIR-V instead of GLSL</string>
+    <string name="async_shaders">Enable asynchronous shader compilation</string>
+    <string name="async_shaders_description">Compiles shaders in the background to reduce stuttering during gameplay. When enabled expect temporary graphical glitches</string>
     <string name="renderer_debug">Enable debug renderer</string>
     <string name="renderer_debug_description">Log additional graphics related debug information. When enabled, game performance will be significantly reduced</string>
     <string name="vsync_description">Synchronizes the game frame rate to the refresh rate of your device.</string>