[android] Early release fences option (#95)

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/95

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

@@ -25,6 +25,7 @@ enum class BooleanSetting(override val key: String) : AbstractBooleanSetting {
     RENDERER_ASYNCHRONOUS_SHADERS("use_asynchronous_shaders"),
     RENDERER_FAST_GPU("use_fast_gpu_time"),
     RENDERER_REACTIVE_FLUSHING("use_reactive_flushing"),
+    RENDERER_EARLY_RELEASE_FENCES("early_release_fences"),
     RENDERER_DEBUG("debug"),
     RENDERER_PROVOKING_VERTEX("provoking_vertex"),
     RENDERER_DESCRIPTOR_INDEXING("descriptor_indexing"),

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

@@ -666,6 +666,13 @@ abstract class SettingsItem(
                     descriptionId = R.string.renderer_reactive_flushing_description
                 )
             )
+            put(
+                SwitchSetting(
+                    BooleanSetting.RENDERER_EARLY_RELEASE_FENCES,
+                    titleId = R.string.renderer_early_release_fences,
+                    descriptionId = R.string.renderer_early_release_fences_description
+                )
+            )
             put(
                 SingleChoiceSetting(
                     IntSetting.MAX_ANISOTROPY,

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

@@ -450,6 +450,7 @@ class SettingsFragmentPresenter(
             add(BooleanSetting.ENABLE_RAII.key)
             add(BooleanSetting.FRAME_INTERPOLATION.key)
             add(BooleanSetting.RENDERER_FAST_GPU.key)
+            add(BooleanSetting.RENDERER_EARLY_RELEASE_FENCES.key)
             add(IntSetting.FAST_GPU_TIME.key)
             add(IntSetting.RENDERER_SHADER_BACKEND.key)
             add(IntSetting.RENDERER_NVDEC_EMULATION.key)

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

@@ -88,12 +88,8 @@
     <string name="enable_raii_description">A method of automatic resource management in Vulkan that ensures proper release of resources when they are no longer needed, but may cause crashes in bundled games.</string>
     <string name="frame_interpolation">Enhanced Frame Pacing</string>
     <string name="frame_interpolation_description">Ensures smooth and consistent frame delivery by synchronizing the timing between frames, reducing stuttering and uneven animation. Ideal for games that experience frame timing instability or micro-stutters during gameplay.</string>
-    <string name="use_auto_stub">Use Auto Stub</string>
-    <string name="use_auto_stub_description">Automatically stub missing services and functions. This may improve compatibility but can cause crashes and stability issues.</string>
-    <string name="uninstall_firmware">Uninstall firmware</string>
-    <string name="uninstall_firmware_description">Uninstalling the firmware will remove it from the device and may affect game compatibility.</string>
-    <string name="firmware_uninstalling">Uninstalling firmware</string>
-    <string name="firmware_uninstalled_success">Firmware uninstalled successfully</string>
+    <string name="renderer_early_release_fences">Release fences early</string>
+    <string name="renderer_early_release_fences_description">Some games may require this to get past 0FPS errors, such as DKCR:HD, Subnautica, and Ori 2.</string>
 
     <string name="veil_misc">CPU and Memory</string>
     <string name="use_sync_core">Synchronize Core Speed</string>
@@ -385,6 +381,11 @@
     <string name="keys_missing_description">Firmware and retail games cannot be decrypted</string>
     <string name="keys_missing_help">https://yuzu-mirror.github.io/help/quickstart/#dumping-decryption-keys</string>
 
+    <string name="uninstall_firmware">Uninstall firmware</string>
+    <string name="uninstall_firmware_description">Uninstalling the firmware will remove it from the device and may affect game compatibility.</string>
+    <string name="firmware_uninstalling">Uninstalling firmware</string>
+    <string name="firmware_uninstalled_success">Firmware uninstalled successfully</string>
+
     <string name="firmware_invalid">Firmware Invalid</string>
     <string name="error_firmware_missing">Firmware is required to run certain games and use system applications. Eden only works with firmware 19.0.1 and earlier.</string>
     <string name="error_firmware_corrupted">Firmware reported as present, but was unable to be read. Check for decryption keys and redump firmware if necessary.</string>
@@ -510,6 +511,8 @@
     <string name="cpu">CPU</string>
     <string name="cpu_debug_mode">CPU Debugging</string>
     <string name="cpu_debug_mode_description">Puts the CPU in a slow debugging mode.</string>
+    <string name="use_auto_stub">Use Auto Stub</string>
+    <string name="use_auto_stub_description">Automatically stub missing services and functions. This may improve compatibility but can cause crashes and stability issues.</string>
 
     <string name="gpu">GPU</string>
     <string name="renderer_api">API</string>

src/common/settings.h

@@ -457,6 +457,16 @@ struct Values {
                                                         Specialization::Default,
                                                         true,
                                                         true};
+#ifdef ANDROID
+    SwitchableSetting<bool> early_release_fences{linkage,
+                                                 false,
+                                                 "early_release_fences",
+                                                 Category::RendererAdvanced,
+                                                 Specialization::Default,
+                                                 true,
+                                                 true};
+#endif
+
     SwitchableSetting<bool> async_presentation{linkage,
 #ifdef ANDROID
                                                true,

src/video_core/fence_manager.h

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -73,9 +76,15 @@ public:
 
     void SignalFence(std::function<void()>&& func) {
         bool delay_fence = Settings::IsGPULevelHigh();
+        #ifdef __ANDROID__
+        if (!delay_fence && Settings::values.early_release_fences.GetValue()) {
+            TryReleasePendingFences<false>();
+        }
+        #else
         if constexpr (!can_async_check) {
             TryReleasePendingFences<false>();
         }
+        #endif
         const bool should_flush = ShouldFlush();
         CommitAsyncFlushes();
         TFence new_fence = CreateFence(!should_flush);