Android: add FRAME_SKIPPING and FRAME_INTERPOLATION

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

@@ -89,11 +89,10 @@ enum class BooleanSetting(override val key: String) : AbstractBooleanSetting {
     GPU_LOG_MEMORY_TRACKING("gpu_log_memory_tracking"),
     GPU_LOG_DRIVER_DEBUG("gpu_log_driver_debug"),
 
+    ENABLE_FRAME_INTERPOLATION("enable_frame_interpolation"),
+    ENABLE_FRAME_SKIPPING("enable_frame_skipping"),
     ENABLE_QUICK_SETTINGS("enable_quick_settings");
 
-//  external fun isFrameSkippingEnabled(): Boolean
-    external fun isFrameInterpolationEnabled(): Boolean
-
     override fun getBoolean(needsGlobal: Boolean): Boolean =
         NativeConfig.getBoolean(key, needsGlobal)
 

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

@@ -238,6 +238,22 @@ abstract class SettingsItem(
                 override fun reset() = BooleanSetting.USE_DOCKED_MODE.reset()
             }
 
+            put(
+                SwitchSetting(
+                    BooleanSetting.ENABLE_FRAME_INTERPOLATION,
+                    titleId = R.string.enable_frame_interpolation,
+                    descriptionId = R.string.enable_frame_interpolation_description
+                )
+            )
+
+            put(
+                SwitchSetting(
+                    BooleanSetting.ENABLE_FRAME_SKIPPING,
+                    titleId = R.string.enable_frame_skipping,
+                    descriptionId = R.string.enable_frame_skipping_description
+                )
+            )
+
             put(
                 SwitchSetting(
                     dockedModeSetting,

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

@@ -271,6 +271,8 @@ class SettingsFragmentPresenter(
         sl.apply {
             // add(IntSetting.RENDERER_NVDEC_EMULATION.key)
 
+            add(BooleanSetting.ENABLE_FRAME_INTERPOLATION.key)
+            add(BooleanSetting.ENABLE_FRAME_SKIPPING.key)
             add(IntSetting.RENDERER_RESOLUTION.key)
             add(IntSetting.RENDERER_VSYNC.key)
             add(IntSetting.RENDERER_SCALING_FILTER.key)

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/EmulationFragment.kt

@@ -1509,6 +1509,9 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
 
                     if (BooleanSetting.SHOW_FPS.getBoolean(needsGlobal)) {
                         var fpsText = String.format("FPS: %.1f", actualFps)
+                        if (BooleanSetting.ENABLE_FRAME_INTERPOLATION.getBoolean(needsGlobal)) {
+                            fpsText += String.format(" (Generated: %.1f)", actualFps * 2)
+                        }
                         sb.append(fpsText)
                     }
 

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

@@ -465,6 +465,10 @@
     <string name="network">Network</string>
 
     <!-- Graphics settings strings -->
+    <string name="enable_frame_skipping">Enable Frame Skipping</string>
+    <string name="enable_frame_skipping_description">Toggle frame skipping to improve performance by reducing the number of rendered frames.</string>
+    <string name="enable_frame_interpolation">Enable Frame Interpolation</string>
+    <string name="enable_frame_interpolation_description">Toggle frame interpolation to improve visual smoothness by generating intermediate frames.</string>
     <string name="renderer_resolution">Resolution (Handheld/Docked)</string>
     <string name="renderer_vsync">VSync mode</string>
     <string name="renderer_scaling_filter">Window adapting filter</string>

src/common/settings.h

@@ -337,6 +337,10 @@ struct Values {
 #endif
         "backend", Category::Renderer};
     SwitchableSetting<int> vulkan_device{linkage, 0, "vulkan_device", Category::Renderer, Specialization::RuntimeList};
+    SwitchableSetting<bool> enable_frame_interpolation{linkage, true, "enable_frame_interpolation",
+                                                       Category::Renderer};
+    SwitchableSetting<bool> enable_frame_skipping{linkage, true, "enable_frame_skipping",
+                                                  Category::Renderer};
 
     // Graphics Settings
     ResolutionScalingInfo resolution_info{};

src/video_core/renderer_vulkan/renderer_vulkan.cpp

@@ -38,9 +38,6 @@
 #include "video_core/vulkan_common/vulkan_memory_allocator.h"
 #include "video_core/vulkan_common/vulkan_surface.h"
 #include "video_core/vulkan_common/vulkan_wrapper.h"
-#ifdef __ANDROID__
-#include <jni.h>
-#endif
 namespace Vulkan {
 namespace {
 
@@ -175,6 +172,16 @@ RendererVulkan::~RendererVulkan() {
 }
 
 void RendererVulkan::Composite(std::span<const Tegra::FramebufferConfig> framebuffers) {
+#ifdef __ANDROID__
+    static u64 frame_counter = 0;
+    if (Settings::values.enable_frame_skipping.GetValue()) {
+        ++frame_counter;
+        if ((frame_counter % 2) != 0) {
+            return;
+        }
+    }
+#endif
+
     SCOPE_EXIT {
         render_window.OnFrameDisplayed();
     };