From 732fee2e857414548707c7f9906d1e6eab7c205a Mon Sep 17 00:00:00 2001
From: John <john@eden-emu.dev>
Date: Sat, 9 May 2026 23:49:14 +0200
Subject: [PATCH] Add Enable Legacy Rescale Pass to Android (#3851)

Testing: Luigi Mansion 3 artifact lines also happen on android.

Toggle existed on every platform but android. It works on Android and also removes the artifact lines that also happen on intel and amd gpus.

A testing PR until #3665

Co-authored-by: lizzie <lizzie@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3851
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
---
 .../yuzu_emu/features/settings/model/BooleanSetting.kt   | 1 +
 .../features/settings/model/view/SettingsItem.kt         | 7 +++++++
 .../features/settings/ui/SettingsFragmentPresenter.kt    | 1 +
 src/android/app/src/main/res/values/strings.xml          | 2 ++
 src/common/settings.h                                    | 9 +++++++--
 5 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/BooleanSetting.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/BooleanSetting.kt
index e482725196..eccf0549e7 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/BooleanSetting.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/BooleanSetting.kt
@@ -18,6 +18,7 @@ enum class BooleanSetting(override val key: String) : AbstractBooleanSetting {
     SKIP_CPU_INNER_INVALIDATION("skip_cpu_inner_invalidation"),
     FIX_BLOOM_EFFECTS("fix_bloom_effects"),
     EMULATE_BGR565("emulate_bgr565"),
+    RESCALE_HACK("rescale_hack"),
     CPUOPT_UNSAFE_HOST_MMU("cpuopt_unsafe_host_mmu"),
     USE_DOCKED_MODE("use_docked_mode"),
     USE_AUTO_STUB("use_auto_stub"),
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt
index db2edba1b9..3a5f466f07 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt
@@ -747,6 +747,13 @@ abstract class SettingsItem(
                     descriptionId = R.string.fix_bloom_effects_description
                 )
             )
+            put(
+                SwitchSetting(
+                    BooleanSetting.RESCALE_HACK,
+                    titleId = R.string.rescale_hack,
+                    descriptionId = R.string.rescale_hack_description
+                )
+            )
             put(
                 SwitchSetting(
                     BooleanSetting.EMULATE_BGR565,
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt
index ccbe808cf6..9f0e409cf4 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt
@@ -293,6 +293,7 @@ class SettingsFragmentPresenter(
             add(BooleanSetting.SKIP_CPU_INNER_INVALIDATION.key)
             add(BooleanSetting.FIX_BLOOM_EFFECTS.key)
             add(BooleanSetting.EMULATE_BGR565.key)
+            add(BooleanSetting.RESCALE_HACK.key)
             add(BooleanSetting.RENDERER_ASYNCHRONOUS_SHADERS.key)
             add(BooleanSetting.RENDERER_ASYNCHRONOUS_GPU_EMULATION.key)
             add(BooleanSetting.RENDERER_ASYNC_PRESENTATION.key)
diff --git a/src/android/app/src/main/res/values/strings.xml b/src/android/app/src/main/res/values/strings.xml
index d143a12f4e..7cdce5339f 100644
--- a/src/android/app/src/main/res/values/strings.xml
+++ b/src/android/app/src/main/res/values/strings.xml
@@ -511,6 +511,8 @@
     <string name="fix_bloom_effects_description">Reduces bloom blur in LA/EOW (Adreno A6XX - A7XX/ Turnip), removes bloom in Burnout. Warning: may cause graphical artifacts in other games.</string>
     <string name="emulate_bgr565">Emulate BGR565</string>
     <string name="emulate_bgr565_description">Fixes problems with inverted colors in games or strange artifacts or strange shadows.</string>
+    <string name="rescale_hack">Enable Legacy Rescale Pass</string>
+    <string name="rescale_hack_description">Enables a legacy handling for the rescale configuration pass for games by using a quick rescale path</string>
     <string name="renderer_asynchronous_shaders">Use asynchronous shaders</string>
     <string name="renderer_asynchronous_shaders_description">Compiles shaders asynchronously. This may reduce stutters but may also introduce glitches.</string>
     <string name="gpu_unswizzle_settings">GPU Unswizzle Settings</string>
diff --git a/src/common/settings.h b/src/common/settings.h
index 9749a8df40..d9e1f09dcc 100644
--- a/src/common/settings.h
+++ b/src/common/settings.h
@@ -554,8 +554,13 @@ struct Values {
     SwitchableSetting<bool> emulate_bgr565{linkage, false, "emulate_bgr565",
                                             Category::RendererHacks};
 
-    SwitchableSetting<bool> rescale_hack{linkage, false, "rescale_hack",
-                                                     Category::RendererHacks};
+    SwitchableSetting<bool> rescale_hack{linkage,
+#ifdef __ANDROID__
+        true,
+#else
+        false,
+#endif
+        "rescale_hack", Category::RendererHacks};
 
     SwitchableSetting<bool> use_asynchronous_shaders{linkage, false, "use_asynchronous_shaders",
                                                      Category::RendererHacks};