[android] input over(lay)haul 2: Individual scaling of buttons (#2562)

### (Needs testing)

This PR makes it possible to adjust the scale of each touch input overlay button independently from the global scale
This individual value always goes on top of the global scale.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2562
Co-authored-by: nyx <contact@innix.space>
Co-committed-by: nyx <contact@innix.space>

2 files changed, 11 insertions, 9 deletions

diff --git a/src/common/android/id_cache.cpp b/src/common/android/id_cache.cpp
index e0edd006a5..1198833996 100644
--- a/src/common/android/id_cache.cpp
+++ b/src/common/android/id_cache.cpp
@@ -1,7 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-// SPDX-FileCopyrightText: 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 #include <jni.h>
@@ -49,6 +46,7 @@ static jclass s_overlay_control_data_class;
 static jmethodID s_overlay_control_data_constructor;
 static jfieldID s_overlay_control_data_id_field;
 static jfieldID s_overlay_control_data_enabled_field;
+static jfieldID s_overlay_control_data_individual_scale_field;
 static jfieldID s_overlay_control_data_landscape_position_field;
 static jfieldID s_overlay_control_data_portrait_position_field;
 static jfieldID s_overlay_control_data_foldable_position_field;
@@ -244,6 +242,10 @@ namespace Common::Android {
         return s_overlay_control_data_enabled_field;
     }
 
+    jfieldID GetOverlayControlDataIndividualScaleField() {
+        return s_overlay_control_data_individual_scale_field;
+    }
+
     jfieldID GetOverlayControlDataLandscapePositionField() {
         return s_overlay_control_data_landscape_position_field;
     }
@@ -494,7 +496,7 @@ namespace Common::Android {
                 reinterpret_cast<jclass>(env->NewGlobalRef(overlay_control_data_class));
         s_overlay_control_data_constructor =
                 env->GetMethodID(overlay_control_data_class, "<init>",
-                                 "(Ljava/lang/String;ZLkotlin/Pair;Lkotlin/Pair;Lkotlin/Pair;)V");
+                                 "(Ljava/lang/String;ZLkotlin/Pair;Lkotlin/Pair;Lkotlin/Pair;F)V");
         s_overlay_control_data_id_field =
                 env->GetFieldID(overlay_control_data_class, "id", "Ljava/lang/String;");
         s_overlay_control_data_enabled_field =
@@ -505,6 +507,8 @@ namespace Common::Android {
                 env->GetFieldID(overlay_control_data_class, "portraitPosition", "Lkotlin/Pair;");
         s_overlay_control_data_foldable_position_field =
                 env->GetFieldID(overlay_control_data_class, "foldablePosition", "Lkotlin/Pair;");
+        s_overlay_control_data_individual_scale_field =
+                env->GetFieldID(overlay_control_data_class, "individualScale", "F");
         env->DeleteLocalRef(overlay_control_data_class);
 
         const jclass patch_class = env->FindClass("org/yuzu/yuzu_emu/model/Patch");
diff --git a/src/common/android/id_cache.h b/src/common/android/id_cache.h
index c56ffcf5c6..6b48f471b7 100644
--- a/src/common/android/id_cache.h
+++ b/src/common/android/id_cache.h
@@ -1,7 +1,4 @@
-// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-// SPDX-FileCopyrightText: 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 #pragma once
@@ -67,6 +64,7 @@ jclass GetOverlayControlDataClass();
 jmethodID GetOverlayControlDataConstructor();
 jfieldID GetOverlayControlDataIdField();
 jfieldID GetOverlayControlDataEnabledField();
+jfieldID GetOverlayControlDataIndividualScaleField();
 jfieldID GetOverlayControlDataLandscapePositionField();
 jfieldID GetOverlayControlDataPortraitPositionField();
 jfieldID GetOverlayControlDataFoldablePositionField();