Add MemoryUtil for Apple external.

source/funkin/external/apple/AudioSession.hx

@@ -1,6 +1,6 @@
 package funkin.external.apple;
 
-#if (ios || macos)
+#if ((ios || macos) && cpp)
 /**
  * A utility class to manage the audio session on apple devices.
  */

source/funkin/external/apple/MemoryUtil.hx

@@ -0,0 +1,20 @@
+package funkin.external.apple;
+
+#if ((ios || macos) && cpp)
+/**
+ * A utility class to get information about the mem usage.
+ */
+@:build(funkin.util.macro.LinkerMacro.xml('project/Build.xml'))
+@:include('MemoryUtil.hpp')
+@:unreflective
+extern class MemoryUtil
+{
+  /**
+   * Retrieves the current process's resident set size (RSS) in bytes on Apple platforms.
+   *
+   * @return The resident set size (RSS) in bytes if successful; otherwise, returns 0 on failure.
+   */
+  @:native('Apple_MemoryUtil_GetCurrentProcessRss')
+  static function getCurrentProcessRss():cpp.SizeT;
+}
+#end

source/funkin/external/apple/ScreenUtil.hx

@@ -1,6 +1,6 @@
 package funkin.external.apple;
 
-#if (ios || macos)
+#if ((ios || macos) && cpp)
 /**
  * A utility class to get screen related informations on apple devices.
  */

source/funkin/external/apple/project/Build.xml

@@ -13,8 +13,9 @@
 	<files id="external-apple">
 		<compilerflag value="-I${this_dir}/include" />
 
-		<file name="${this_dir}/src/ScreenUtil.mm" />
 		<file name="${this_dir}/src/AudioSession.mm" />
+		<file name="${this_dir}/src/MemoryUtil.mm" />
+		<file name="${this_dir}/src/ScreenUtil.mm" />
 	</files>
 
 	<target id="haxe">

source/funkin/external/apple/project/include/MemoryUtil.hpp

@@ -0,0 +1,8 @@
+#pragma once
+
+/**
+ * Retrieves the current process's resident set size (RSS) in bytes on Apple platforms.
+ *
+ * @return The resident set size (RSS) in bytes if successful; otherwise, returns 0 on failure.
+ */
+size_t Apple_MemoryUtil_GetCurrentProcessRss();

source/funkin/external/apple/project/src/MemoryUtil.mm

@@ -0,0 +1,13 @@
+#import "MemoryUtil.hpp"
+
+#include <mach/mach.h>
+
+size_t Apple_MemoryUtil_GetCurrentProcessRss()
+{
+  task_basic_info info;
+
+  if (task_info(mach_task_self(), TASK_BASIC_INFO, (task_info_t)&info, &TASK_BASIC_INFO_COUNT) != KERN_SUCCESS)
+    return 0;
+
+  return info.resident_size;
+}

source/funkin/util/MemoryUtil.hx

@@ -47,7 +47,7 @@ class MemoryUtil
 
   public static function supportsTaskMem():Bool
   {
-    #if ((windows && cpp) || linux || android)
+    #if ((cpp && (windows || ios || macos)) || linux || android)
     return true;
     #else
     return false;
@@ -58,6 +58,8 @@ class MemoryUtil
   {
     #if (windows && cpp)
     return funkin.external.windows.WinAPI.getProcessMemoryWorkingSetSize();
+    #elseif ((ios || macos) && cpp)
+    return funkin.external.apple.MemoryUtil.getCurrentProcessRss();
     #elseif (linux || android)
     try
     {