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Add keeper fix

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This commit is contained in:
Emmanuel AYME
2025-11-20 14:59:33 +01:00
parent a82981c081
commit 595045d089
1 changed files with 407 additions and 0 deletions
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Keeper/dllmain.cpp Normal file
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#include "CommonHeaders.h"
#include "GameFixes.h"
#include "GameInformations.h"
#include "ObfuscateString.h"
#include "Memory.hpp"
#include "Maths.hpp"
#include "UEngine.hpp";
#include "SDK/Basic.hpp"
#include "SDK/Engine_classes.hpp"
using namespace SDK;
// Constants
const std::string PLUGIN_NAME = "Keeper";
const std::string PLUGIN_LOG = PLUGIN_NAME + ".log";
const float BASE_ASPECT = 1.777777791;
const float DEFAULT_WORLD_FOV = 90.f;
// Logger
std::shared_ptr<spdlog::logger> logger;
// Screen informations
static int screenWidth = GetSystemMetrics(SM_CXSCREEN);
static int screenHeight = GetSystemMetrics(SM_CYSCREEN);
static float aspectRatio = (float)screenWidth / screenHeight;
// Plugin states
static bool AOBScanDone = false;
static bool g_fix_enabled = false;
static bool g_fov_fix_enabled = false;
static bool g_ultrawide_fix_enabled = false;
static bool g_DOF_fix_enabled = false;
static bool g_CA_fix_enabled = false;
static bool g_Vignetting_fix_enabled = false;
static bool g_Fog_fix_enabled = false;
static int g_AdditionalFOVValue = 0;
static bool g_Console = false;
// Shared values
static float g_FOV_In = 70.f;
static float g_Compensated_FOV = 70.f;
static float g_FOV_Out = 70.f;
static bool g_Console_Enabled = false;
// AOB Unreal Engine offsets addresses
static uint8_t* GObjectsaddress = nullptr;
static uint8_t* AppendStringaddress = nullptr;
static uint8_t* ProcessEventaddress = nullptr;
// AOB Scan pointers
static uint8_t* FOVaddress = nullptr;
static uint8_t* Ultrawideaddress = nullptr;
static uint8_t* DOFaddress = nullptr;
static uint8_t* CAaddress = nullptr;
static uint8_t* Vignettingaddress = nullptr;
static uint8_t* Fogaddress = nullptr;
// Hooking
static SafetyHookMid FOVHook{};
static SafetyHookMid AspectHook{};
static SafetyHookMid FogHook{};
// Prototypes
static void FOVFixEnabled();
static void UltrawideFixEnabled();
static void DOFFixEnabled();
static void CAFixEnabled();
static void VignettingFixEnabled();
static void FogFixEnabled();
static void EnableConsole();
extern "C" __declspec(dllexport) void SetFixEnabled(bool enabled, bool init)
{
g_fix_enabled = enabled;
if (g_fix_enabled && !AOBScanDone) {
logger->info("--------------- AOB scan started ---------------");
if (FOVaddress == nullptr) {
constexpr auto FOVStringObfuscated = make_obfuscated<0x4A>("77 ?? 48 ?? ?? FF ?? ?? ?? ?? ?? F3 0F ?? ?? ?? 48");
FOVaddress = Memory::AOBScan("", FOVStringObfuscated.decrypt(), PAGE_EXECUTE_READ, logger);
if (!FOVaddress)
logger->warn("FOV signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else
logger->info("FOV signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(FOVaddress));
}
if (Ultrawideaddress == nullptr) {
constexpr auto AspectStringObfuscated = make_obfuscated<0x4A>("F3 0F ?? ?? ?? ?? ?? ?? 48 8D ?? ?? ?? 83 8C ?? ?? ?? ?? ?? ?? 48");
Ultrawideaddress = Memory::AOBScan("", AspectStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
if (!Ultrawideaddress)
logger->warn("Ultrawide ratio signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else
logger->info("Ultrawide signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(Ultrawideaddress));
}
if (DOFaddress == nullptr) {
constexpr auto DOFStringObfuscated = make_obfuscated<0x4A>("8B ?? ?? 48 ?? ?? E8 ?? ?? ?? ?? 0F ?? ?? 48 ?? ?? ?? 48 8D");
DOFaddress = Memory::AOBScan("", DOFStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
if (!DOFaddress)
logger->warn("DOF signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else
logger->info("DOF signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(DOFaddress));
}
if (CAaddress == nullptr) {
constexpr auto CAStringObfuscated = make_obfuscated<0x4A>("7F ?? 44 89 ?? ?? ?? ?? ?? 43 ?? ?? ?? 39 05");
CAaddress = Memory::AOBScan("", CAStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
if (!CAaddress)
logger->warn("Chromatic aberrations signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else
logger->info("Chromatic aberrations signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(CAaddress));
}
if (Vignettingaddress == nullptr) {
constexpr auto VignettingStringObfuscated = make_obfuscated<0x4A>("8B ?? 83 ?? ?? 7D ?? 44 89");
Vignettingaddress = Memory::AOBScan("", VignettingStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
if (!Vignettingaddress)
logger->warn("Vignetting signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else
logger->info("Vignetting signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(Vignettingaddress));
}
if (Fogaddress == nullptr) {
constexpr auto FogStringObfuscated = make_obfuscated<0x4A>("40 ?? 48 83 ?? ?? 48 8B ?? ?? ?? ?? ?? 48 ?? ?? 48 89 ?? ?? ?? 48 8D ?? ?? 48 8D ?? ?? ?? E8");
Fogaddress = Memory::AOBScan("", FogStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
if (!Fogaddress)
logger->warn("Fog signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else
logger->info("Fog signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(Fogaddress));
}
if (FOVaddress && Ultrawideaddress && DOFaddress && CAaddress && Vignettingaddress && Fogaddress)
logger->info("All AOB signatures found. Ready to patch...");
AOBScanDone = true;
if (!GObjectsaddress || !AppendStringaddress || !ProcessEventaddress) {
logger->info("------------ UEngine offsets search ------------");
uint8_t* baseModule = reinterpret_cast<uint8_t*>(GetModuleHandleA(nullptr)); // Get game base address
constexpr auto GObjetcsStringObfuscated = make_obfuscated<0x4A>("48 8B ?? ?? ?? ?? ?? 48 8B ?? ?? 48 8D ?? ?? EB ?? 33");
GObjectsaddress = Memory::AOBScan("", GObjetcsStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
constexpr auto AppendStringStringObfuscated = make_obfuscated<0x4A>("48 89 ?? ?? ?? 48 89 ?? ?? ?? 57 48 83 ?? ?? 80 3D ?? ?? ?? ?? ?? 48 8B F2 8B ?? 48");
AppendStringaddress = Memory::AOBScan("", AppendStringStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
constexpr auto ProcessEventStringObfuscated = make_obfuscated<0x4A>("40 ?? 56 57 41 ?? 41 ?? 41 ?? 41 ?? 48 81 ?? ?? ?? ?? ?? 48 8D ?? ?? ?? 48 89 ?? ?? ?? ?? ?? 48 8B ?? ?? ?? ?? ?? 48 33 ?? 48 89 ?? ?? ?? ?? ?? 4D ?? ?? 48");
ProcessEventaddress = Memory::AOBScan("", ProcessEventStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
if (!GObjectsaddress)
logger->warn("GObjects signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else {
uint32_t gObjectsOffset = static_cast<uint32_t>(Memory::GetOffsetFromOpcode(GObjectsaddress + 0x3) -
baseModule);
logger->info("GObjects offset is: 0x{:X}.", gObjectsOffset);
Offsets::GObjects = static_cast<UC::uint32>(gObjectsOffset); // Update GObjects offset
}
if (!AppendStringaddress)
logger->warn("AppendString signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else {
std::optional<uint32_t> gAppendStringOffsetOpt = UE::CalculateOffset("", AppendStringaddress); // Get Offset from opcode
uint32_t gAppendStringOffset = *gAppendStringOffsetOpt;
logger->info("AppendString offset is: 0x{:X}.", gAppendStringOffset);
Offsets::AppendString = static_cast<UC::uint32>(gAppendStringOffset); // Update AppendString offset
}
if (!ProcessEventaddress)
logger->warn("Process Event signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else {
std::optional<uint32_t> gProcessEventOffsetOpt = UE::CalculateOffset("", ProcessEventaddress);
uint32_t gProcessEventOffset = *gProcessEventOffsetOpt;
logger->info("Process Event offset is: 0x{:X}.", gProcessEventOffset);
Offsets::ProcessEvent = static_cast<UC::uint32>(gProcessEventOffset);// Update ProcessEvent offset
}
}
logger->info("-------------- Fixes initialisation -------------");
}
if (!init && FOVaddress) FOVFixEnabled();
if (!init && Ultrawideaddress) UltrawideFixEnabled();
if (!init && DOFaddress) DOFFixEnabled();
if (!init && CAaddress) CAFixEnabled();
if (!init && Vignettingaddress) VignettingFixEnabled();
if (!init && Fogaddress) FogFixEnabled();
}
// Setters for Reshade addon call
extern "C" __declspec(dllexport) void SetFixesEnabled(GameFixes fix, bool enabled) {
if (fix == GameFixes::DevConsole) { g_Console = enabled; EnableConsole(); };
if (fix == GameFixes::FOV) { g_fov_fix_enabled = enabled; FOVFixEnabled(); }
if (fix == GameFixes::UltraWide) { g_ultrawide_fix_enabled = enabled; UltrawideFixEnabled(); }
if (fix == GameFixes::DOF) { g_DOF_fix_enabled = enabled; DOFFixEnabled(); }
if (fix == GameFixes::ChromaticAberrations) { g_CA_fix_enabled = enabled; CAFixEnabled(); }
if (fix == GameFixes::Vignetting) { g_Vignetting_fix_enabled = enabled; VignettingFixEnabled(); }
if (fix == GameFixes::Fog) { g_Fog_fix_enabled = enabled; FogFixEnabled(); }
}
extern "C" __declspec(dllexport) void SetFOV(int fov)
{
g_AdditionalFOVValue = fov;
}
// Getters for Reshade addon call
extern "C" __declspec(dllexport) void GetGameInfos(GameInfos* infos) {
if (!infos) return;
infos->FOVIn = g_FOV_In;
infos->CompensatedFOV = g_Compensated_FOV;
infos->FOVOut = g_FOV_Out;
infos->consoleEnabled = g_Console_Enabled;
}
// Code injection functions
static void FOVFixEnabled() {
if (FOVaddress) {
if (g_fix_enabled && (g_fov_fix_enabled || g_ultrawide_fix_enabled) && FOVaddress) {
if (!FOVHook) { // Hook only once
FOVHook = safetyhook::create_mid(FOVaddress + 0x10,
[](SafetyHookContext& ctx) {
g_FOV_In = ctx.xmm0.f32[0];
// FOV compensation when ultrawide is checked
if (aspectRatio > BASE_ASPECT && g_ultrawide_fix_enabled)
ctx.xmm0.f32[0] = Maths::CompensateHorizontalFOV(g_FOV_In, BASE_ASPECT, aspectRatio);
g_Compensated_FOV = ctx.xmm0.f32[0];
// Additional FOV
ctx.xmm0.f32[0] += (g_fix_enabled && g_fov_fix_enabled ? g_AdditionalFOVValue : 0);
g_FOV_Out = ctx.xmm0.f32[0];
});
}
else FOVHook.enable();
logger->info("FOV fix enabled");
}
if (!(g_fix_enabled && (g_fov_fix_enabled || g_ultrawide_fix_enabled)) && FOVaddress) {
if (FOVHook) FOVHook.disable();
logger->info("FOV fix disabled");
}
}
}
static void UltrawideFixEnabled() {
if (g_fix_enabled && g_ultrawide_fix_enabled && Ultrawideaddress) {
if (!AspectHook) {
AspectHook = safetyhook::create_mid(Ultrawideaddress + 0x8,
[](SafetyHookContext& ctx) {
ctx.xmm0.f32[0] = aspectRatio;
});
}
else AspectHook.enable();
FOVFixEnabled();
logger->info("Aspect fix enabled");
}
if (!(g_fix_enabled && g_ultrawide_fix_enabled)) {
if (AspectHook) AspectHook.disable();
logger->info("Aspect ratio fix disabled");
}
}
// Memory patch fixes
static void DOFFixEnabled() {
if (g_fix_enabled && g_DOF_fix_enabled && DOFaddress) {
Memory::PatchBytes(DOFaddress, "\x31\xFF\x90", 3); // xor edi,edi r.DepthOfFieldQuality = 0
logger->info("Depth of field fix enabled");
}
if (!(g_fix_enabled && g_DOF_fix_enabled) && DOFaddress) {
Memory::RestoreBytes(DOFaddress);
logger->info("Depth of field fix disabled");
}
}
static void CAFixEnabled() {
if (g_fix_enabled && g_CA_fix_enabled && CAaddress) {
Memory::PatchBytes(CAaddress, "\x90\x90", 2); // NOP jg "HellIsUs-Win64-Shipping.exe"+3D73BD5 r.SceneColorFringeQuality = 0
logger->info("Chromatic aberrations fix enabled");
}
if (!(g_fix_enabled && g_CA_fix_enabled) && CAaddress) {
Memory::RestoreBytes(CAaddress);
logger->info("Chromatic aberrations fix disabled");
}
}
static void VignettingFixEnabled() {
if (g_fix_enabled && g_Vignetting_fix_enabled && Vignettingaddress) {
Memory::PatchBytes(Vignettingaddress, "\x31\xC9", 2); // xor ecx,ecx r.Tonemapper.Quality=0
logger->info("Vignetting fix enabled");
}
if (!(g_fix_enabled && g_Vignetting_fix_enabled) && Vignettingaddress) {
Memory::RestoreBytes(Vignettingaddress);
logger->info("Vignetting fix disabled");
}
}
static void FogFixEnabled() {
if (g_fix_enabled && g_Fog_fix_enabled && Fogaddress) {
if (!FogHook) {
FogHook = safetyhook::create_mid(Fogaddress + 0x31,
[](SafetyHookContext& ctx) {
if (!ctx.rax) return;
uintptr_t* rax = reinterpret_cast<uintptr_t*>(ctx.rax);
bool* bFog = reinterpret_cast<bool*>(reinterpret_cast<uint8_t*>(rax) + 0x04);
*bFog = g_fix_enabled && g_Fog_fix_enabled ? false : true;
});
}
logger->info("Fog fix enabled");
}
if (!(g_fix_enabled && g_Fog_fix_enabled) && Fogaddress)
logger->info("Fog fix disabled");
}
// UE Console creation
static void EnableConsole()
{
if (g_Console_Enabled) return;
if (!g_Console) {
logger->info("------------------ User inputs ------------------");
return;
}
logger->info("-------------- Console re-enabling --------------");
if (!GObjectsaddress || !AppendStringaddress || !ProcessEventaddress) {
logger->warn("Could not re-enable console");
logger->info("------------------ User inputs ------------------");
return;
}
std::thread([&]() {
auto start = std::chrono::high_resolution_clock::now(); // Measure the time to renable console
UEngine* Engine = nullptr;
for (int i = 0; i < 100; ++i) { // gives 10 seconds to find UE Engine
std::this_thread::sleep_for(std::chrono::milliseconds(100));
Engine = UEngine::GetEngine();
if (Engine && Engine->ConsoleClass && Engine->GameViewport)
break;
}
if (!Engine || !Engine->ConsoleClass || !Engine->GameViewport) {
logger->error("Console could not be found in engine.");
return;
}
logger->info("Console found in engine");
/* Creates a new UObject of class-type specified by Engine->ConsoleClass */
UObject* NewObject = UGameplayStatics::SpawnObject(Engine->ConsoleClass, Engine->GameViewport);
if (NewObject)
{
logger->info("Successfully spawned console object");
// Set the console viewport so that it will be displayed
Engine->GameViewport->ViewportConsole = static_cast<UConsole*>(NewObject);
// Compute console enabling duration
auto end = std::chrono::high_resolution_clock::now();
std::chrono::duration<double> elapsed = end - start;
// Set the all the console shortkey to F2
for (int i = 0; i < UInputSettings::GetDefaultObj()->ConsoleKeys.Num(); i++)
{
UInputSettings::GetDefaultObj()->ConsoleKeys[i].KeyName = UKismetStringLibrary::Conv_StringToName(L"F2");
}
logger->info("Console fully reactivated in {:.3f}s and bound to key F2", elapsed.count());
logger->info("------------------ User inputs ------------------");
g_Console_Enabled = true;
}
else {
logger->error("Could not spawn console object");
}
}).detach();
}
static void InitializeLogger()
{
try
{
std::filesystem::path log_path = std::filesystem::absolute(PLUGIN_LOG);
if (std::filesystem::exists(log_path))
std::filesystem::remove(log_path);
logger = std::make_shared<spdlog::logger>("Keeper", std::make_shared<spdlog::sinks::rotating_file_sink_st>(PLUGIN_LOG, 10 * 1024 * 1024, 1));
logger->set_level(spdlog::level::debug);
logger->flush_on(spdlog::level::debug); // Flush automatically
}
catch (const spdlog::spdlog_ex& ex)
{
std::string plugin_error_message = "Could not open " + PLUGIN_LOG;
MessageBoxA(nullptr, plugin_error_message.c_str(), "Logger Error", MB_ICONERROR | MB_OK);
}
}
// Standard dll entry
BOOL APIENTRY DllMain(HMODULE hModule, DWORD reason, LPVOID)
{
if (reason == DLL_PROCESS_ATTACH)
{
InitializeLogger();
logger->info("Plugin {} loaded.", PLUGIN_NAME);
}
else if (reason == DLL_PROCESS_DETACH)
{
logger->info("Plugin {} unloaded.", PLUGIN_NAME);
spdlog::drop_all();
}
return TRUE;
}