Native Linux compile working and works on steam deck

Source/HarmonyLink/Private/HarmonyLinkLibrary.cpp

@@ -5,6 +5,21 @@
 
 #include "HarmonyLinkLib.h"
 
+bool UHarmonyLinkLibrary::bIsWineCached = false;
+bool UHarmonyLinkLibrary::bIsLinuxCached = false;
+bool UHarmonyLinkLibrary::bIsSteamDeckCached = false;
+bool UHarmonyLinkLibrary::bCPUInfoCached = false;
+bool UHarmonyLinkLibrary::bDeviceInfoCached = false;
+bool UHarmonyLinkLibrary::bOSInfoCached = false;
+
+bool UHarmonyLinkLibrary::bIsWine = false;
+bool UHarmonyLinkLibrary::bIsLinux = false;
+bool UHarmonyLinkLibrary::bIsSteamDeck = false;
+
+FCPUInfo UHarmonyLinkLibrary::CachedCPUInfo = FCPUInfo();
+FDevice UHarmonyLinkLibrary::CachedDeviceInfo = FDevice();
+FOSVerInfo UHarmonyLinkLibrary::CachedOSInfo = FOSVerInfo();
+
 UHarmonyLinkLibrary::UHarmonyLinkLibrary()
 {
 	if (!HarmonyLinkLib::HL_Init())
@@ -16,34 +31,65 @@ UHarmonyLinkLibrary::UHarmonyLinkLibrary()
 	UE_LOG(LogHarmonyLink, Log, TEXT("HarmonyLinkLib Initialised!"));
 }
 
-bool UHarmonyLinkLibrary::IsWine()
+bool UHarmonyLinkLibrary::IsWine(bool bForce)
 {
-	return HarmonyLinkLib::get_is_wine();
+	if (!bIsWineCached || bForce)
+	{
+		bIsWine = HarmonyLinkLib::get_is_wine();
+		bIsWineCached = true;
+	}
+	return bIsWine;
 }
 
-bool UHarmonyLinkLibrary::IsLinux()
+bool UHarmonyLinkLibrary::IsLinux(bool bForce)
 {
-	return HarmonyLinkLib::get_is_linux();
+	if (!bIsLinuxCached || bForce)
+	{
+		bIsLinux = HarmonyLinkLib::get_is_linux();
+		bIsLinuxCached = true;
+	}
+	return bIsLinux;
 }
 
-bool UHarmonyLinkLibrary::IsSteamDeck()
+bool UHarmonyLinkLibrary::IsSteamDeck(bool bForce)
 {
-	return GetDeviceInfo().Device == EDevice::STEAM_DECK;
+	if (!bIsSteamDeckCached || bForce)
+	{
+		bIsSteamDeck = GetDeviceInfo().Device == EDevice::STEAM_DECK;
+		bIsSteamDeckCached = true;
+	}
+	return bIsSteamDeck;
 }
 
-FCPUInfo UHarmonyLinkLibrary::GetCPUInfo()
+FCPUInfo UHarmonyLinkLibrary::GetCPUInfo(bool bForce)
 {
-	return FCPUInfo(HarmonyLinkLib::get_cpu_info());
+	if (!bCPUInfoCached || bForce)
+	{
+		CachedCPUInfo = FCPUInfo(HarmonyLinkLib::get_cpu_info());
+		bCPUInfoCached = true;
+	}
+
+	return CachedCPUInfo;
 }
 
-FDevice UHarmonyLinkLibrary::GetDeviceInfo()
+FDevice UHarmonyLinkLibrary::GetDeviceInfo(bool bForce)
 {
-	return FDevice(HarmonyLinkLib::get_device_info());
+	if (!bDeviceInfoCached || bForce)
+	{
+		CachedDeviceInfo = FDevice(HarmonyLinkLib::get_device_info());
+		bDeviceInfoCached = true;
+	}
+	return CachedDeviceInfo;
 }
 
-FOSVerInfo UHarmonyLinkLibrary::GetOSInfo()
+FOSVerInfo UHarmonyLinkLibrary::GetOSInfo(bool bForce)
 {
-	return FOSVerInfo(HarmonyLinkLib::get_os_version());
+	if (!bOSInfoCached || bForce)
+	{
+		CachedOSInfo = FOSVerInfo(HarmonyLinkLib::get_os_version());
+		bOSInfoCached = true;
+	}
+	return CachedOSInfo;
 }
 
 FBattery UHarmonyLinkLibrary::GetBatteryStatus()

Source/HarmonyLink/Private/Objects/HarmonyLinkGraphics.cpp

@@ -7,6 +7,7 @@
 #include "HarmonyLinkLibrary.h"
 #include "GameFramework/GameUserSettings.h"
 #include "Kismet/GameplayStatics.h"
+#include "HarmonyLinkLib.h"
 
 UHarmonyLinkGraphics* UHarmonyLinkGraphics::_INSTANCE = nullptr;
 int32 UHarmonyLinkGraphics::_TickRate = 1;
@@ -72,8 +73,8 @@ UHarmonyLinkGraphics::UHarmonyLinkGraphics()
 
 	AddToRoot();
 	
-	FWorldDelegates::OnPostWorldInitialization.AddUObject(this, &UHarmonyLinkGraphics::OnPostWorldInitialization);
+	FWorldDelegates::OnPostWorldInitialization.AddStatic(&UHarmonyLinkGraphics::OnPostWorldInitialization);
-	FWorldDelegates::OnPreWorldFinishDestroy.AddUObject(this, &UHarmonyLinkGraphics::OnWorldEnd);
+	FWorldDelegates::OnPreWorldFinishDestroy.AddStatic(&UHarmonyLinkGraphics::OnWorldEnd);
 
 	Init();
 }
@@ -82,6 +83,7 @@ UHarmonyLinkGraphics::~UHarmonyLinkGraphics()
 {
 	UE_LOG(LogHarmonyLink, Verbose, TEXT("~UHarmonyLinkGraphics called."));
 	FWorldDelegates::OnPostWorldInitialization.RemoveAll(this);
+	FWorldDelegates::OnPreWorldFinishDestroy.RemoveAll(this);
 }
 
 void UHarmonyLinkGraphics::LoadConfig(const bool bForceReload)
@@ -352,13 +354,27 @@ void UHarmonyLinkGraphics::DestroySettings()
 void UHarmonyLinkGraphics::Init()
 {
 	UE_LOG(LogHarmonyLink, Log, TEXT("Init called."));
+
+	if (!HarmonyLinkLib::HL_Init())
+	{
+		UE_LOG(LogHarmonyLink, Fatal, TEXT("Failed to initialise HarmonyLinkLib!"));
+		return;
+	}
+
 	LoadConfig();
 
 	const FBattery BatteryStatus = UHarmonyLinkLibrary::GetBatteryStatus();
 
 	if (BatteryStatus.HasBattery)
 	{
-		ApplyProfileInternal(EProfile::BATTERY);
+		if (BatteryStatus.IsACConnected)
+		{
+			ApplyProfileInternal(EProfile::BATTERY);
+		}
+		else
+		{
+			ApplyProfileInternal(EProfile::CHARGING);
+		}
 	}
 }
 
@@ -584,7 +600,7 @@ void UHarmonyLinkGraphics::OnPostWorldInitialization(UWorld* World, UWorld::Init
 	
 	if (World->IsGameWorld())
 	{
-		if (IsValid(_INSTANCE))
+		if (IsValid(GetSettings()))
 		{
 			FTimerManager* TimerManager = &World->GetTimerManager();
 			if (!TimerManager)
@@ -598,7 +614,7 @@ void UHarmonyLinkGraphics::OnPostWorldInitialization(UWorld* World, UWorld::Init
 
 				World->GetTimerManager().SetTimer(_TickTimerHandle, [TimerManager]
 				{
-					if (!_INSTANCE)
+					if (!GetSettings())
 					{
 						UE_LOG(LogHarmonyLink, Error, TEXT("'This' is destroyed, Clearing timer."))
 						if (TimerManager)
@@ -607,7 +623,7 @@ void UHarmonyLinkGraphics::OnPostWorldInitialization(UWorld* World, UWorld::Init
 						}
 						return;
 					}
-					_INSTANCE->Tick();
+					GetSettings()->Tick();
 				}, _TickRate, true);
 			}
 			else

Source/HarmonyLink/Public/HarmonyLinkLibrary.h

@@ -25,29 +25,45 @@ public:
 
 	// Checks if the game is running under Wine.
 	UFUNCTION(BlueprintCallable, BlueprintPure, Category="HarmonyLink")
-	static bool IsWine();
+	static bool IsWine(bool bForce = false);
 
 	// Checks if the operating system is Linux.
 	UFUNCTION(BlueprintCallable, BlueprintPure, Category="HarmonyLink")
-	static bool IsLinux();
+	static bool IsLinux(bool bForce = false);
 
 	// Checks if the game is running on a Steam Deck.
 	UFUNCTION(BlueprintCallable, BlueprintPure, Category="HarmonyLink")
-	static bool IsSteamDeck();
+	static bool IsSteamDeck(bool bForce = false);
 
 	// Retrieves information about the CPU of the current device.
 	UFUNCTION(BlueprintCallable, BlueprintPure, Category="HarmonyLink")
-	static FCPUInfo GetCPUInfo();
+	static FCPUInfo GetCPUInfo(bool bForce = false);
 
 	// Retrieves information about the current device.
 	UFUNCTION(BlueprintCallable, BlueprintPure, Category="HarmonyLink")
-	static FDevice GetDeviceInfo();
+	static FDevice GetDeviceInfo(bool bForce = false);
 
 	// Retrieves information about the operating system of the current device.
 	UFUNCTION(BlueprintCallable, BlueprintPure, Category="HarmonyLink")
-	static FOSVerInfo GetOSInfo();
+	static FOSVerInfo GetOSInfo(bool bForce = false);
 
 	// Retrieves the current battery status of the device.
 	UFUNCTION(BlueprintCallable, BlueprintPure, Category="HarmonyLink")
 	static FBattery GetBatteryStatus();
+
+private:
+	static bool bIsWineCached;
+	static bool bIsWine;
+	static bool bIsLinuxCached;
+	static bool bIsLinux;
+	static bool bIsSteamDeckCached;
+	static bool bIsSteamDeck;
+
+	static bool bCPUInfoCached;
+	static bool bDeviceInfoCached;
+	static bool bOSInfoCached;
+
+	static FCPUInfo CachedCPUInfo;
+	static FDevice CachedDeviceInfo;
+	static FOSVerInfo CachedOSInfo;
 };

Source/HarmonyLink/Public/Objects/HarmonyLinkGraphics.h

@@ -6,7 +6,7 @@
 #include "Enums/Profile.h"
 #include "Structs/SettingsProfile.h"
 
-#include "UObject/Object.h"
+#include "Kismet/BlueprintFunctionLibrary.h"
 #include "HarmonyLinkGraphics.generated.h"
 
 DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnProfileChanged, EProfile, Profile);
@@ -17,7 +17,7 @@ DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnBatteryLevelChanged, int32, Batte
  * 
  */
 UCLASS(Blueprintable, config="HarmonyLink")
-class HARMONYLINK_API UHarmonyLinkGraphics : public UObject
+class HARMONYLINK_API UHarmonyLinkGraphics : public UBlueprintFunctionLibrary
 {
 	GENERATED_BODY()
 
@@ -390,7 +390,7 @@ private:
 	 * 
 	 * @note Uses UE_LOG for logging errors and informational messages.
 	 */
-	void OnPostWorldInitialization(UWorld* World, UWorld::InitializationValues IVS);
+	static void OnPostWorldInitialization(UWorld* World, UWorld::InitializationValues IVS);
 
 	/**
 	 * @brief Handles actions to be performed when the world ends.
@@ -406,7 +406,7 @@ private:
 	 * 
 	 * @note Uses UE_LOG for logging errors and informational messages.
 	 */
-	void OnWorldEnd(UWorld* World);
+	static void OnWorldEnd(UWorld* World);
 
 	/**
 	 * @brief Resets the singleton instance of the UHarmonyLinkGraphics settings.

Source/ThirdParty/HarmonyLinkLib/HarmonyLinkLib.Build.cs

@@ -43,26 +43,30 @@ public class HarmonyLinkLib : ModuleRules
 		}
 		else if (Target.Platform == UnrealTargetPlatform.Linux)
 		{
-			PublicDefinitions.Add("HARMONYLINKLIB_SHARED=1");
+			PublicDefinitions.Add("HARMONYLINKLIB_STATIC=1");
 			//Console.WriteLine("Building Linux");
 			PublicDefinitions.Add("BUILD_LINUX=1");
-			string libPath = Path.Combine(ModuleDirectory, "bin", platformString, "libHarmonyLinkLibShared.so");
+			string dllPath = Path.Combine(ModuleDirectory, "lib", platformString, "libHarmonyLinkLibStatic_clang++.a");
-			//Console.WriteLine("Library Path: " + libPath);
+            //string dllTargetPath = "$(TargetOutputDir)/libHarmonyLinkLibShared.so";
-			PublicAdditionalLibraries.Add(libPath);
+            //Console.WriteLine("Library Path: " + libPath);
+            PublicAdditionalLibraries.Add(dllPath);
 
-			// Add the C++ standard library explicitly
+			// Ensure the proper linking of standard C++ libraries
-			//string toolchainLibPath = "E:/UnrealToolChains/v22_clang-16.0.6-centos7/x86_64-unknown-linux-gnu/lib";
+            //PublicSystemLibraries.Add("stdc++");
-			//PublicSystemLibraryPaths.Add(toolchainLibPath);
+            //PublicSystemLibraries.Add("c++abi");
-			RuntimeDependencies.Add(libPath);
+            //PublicSystemLibraries.Add("m"); // Math library
-		}
+            //PublicSystemLibraries.Add("pthread"); // POSIX threads library
-		// I shall include this if anyone wishes to provide Mac binaries of HarmonyLink but these are not included by default as I don't own one.
+
-		else if (Target.Platform == UnrealTargetPlatform.Mac)
+            // Add the C++ standard library explicitly if needed
-		{
+            PublicSystemLibraries.Add("c++");
-			PublicDefinitions.Add("HARMONYLINKLIB_SHARED=1");
+
-			PublicDefinitions.Add("BUILD_MACOS=1");
+            // Ensure linking with libc and other necessary libraries
-			string dynlibPath = Path.Combine(ModuleDirectory, "lib", platformString, "libHarmonyLinkLibStatic.a");
+            //PublicSystemLibraries.Add("dl"); // Dynamic linking loader
-			//Console.WriteLine("Dynamic Library Path: " + dynlibPath);
+            //PublicSystemLibraries.Add("rt"); // Real-time library
-			RuntimeDependencies.Add(dynlibPath);
+
-		}
+            // Add any other libraries that might be needed
+            //PublicSystemLibraries.Add("gcc_s"); // GCC support library
+            //PublicSystemLibraries.Add("gcc"); // GCC compiler support library
+        }
 	}
 }