diff --git a/SilentHill2Remake/dllmain.cpp b/SilentHill2Remake/dllmain.cpp new file mode 100644 index 0000000..d8ddcf8 --- /dev/null +++ b/SilentHill2Remake/dllmain.cpp @@ -0,0 +1,446 @@ +#include +#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 = "SilentHill22024"; +const std::string PLUGIN_LOG = PLUGIN_NAME + ".log"; + +// Logger +std::shared_ptr logger; + +// Screen informations +static int screenWidth = GetSystemMetrics(SM_CXSCREEN); +static int screenHeight = GetSystemMetrics(SM_CYSCREEN); +const float baseAspect = 1.7777778; // Game base aspect ratio +static float aspectRatio = (float)screenWidth / screenHeight; + +// Plugin states +static bool AOBScanDone = false; +static bool g_Console = false; +static bool g_fix_enabled = false; +static bool g_fov_fix_enabled = false; +static bool g_ultrawide_fix_enabled = false; +static bool g_camera_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 float g_CameraDistanceValue = 1.f; + +// Shared values +static float g_FOV_In = 60.f; +static float g_FOV_Out = 60.f; +static float g_CompensatedFOV = 0.f; +static float g_CameraIn = 156.25f; +static float g_CameraOut = 156.25f; +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* Cameraaddress = 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 CameraHook{}; +static SafetyHookMid DOFHook{}; + +// Prototypes +static void FOVFixEnabled(); +static void UltraWideFixEnabled(); +static void CameraFixEnabled(); +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) { // Unreal Engine 5.1.1 + logger->info("--------------- AOB scan started ---------------"); + if (FOVaddress == nullptr) { + constexpr auto FOVStringObfuscated = make_obfuscated<0x4A>("77 ?? 48 8B ?? FF 90 ?? ?? ?? ?? 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 found at address: 0x{:X}.", reinterpret_cast(FOVaddress)); + FOVaddress += 0x10; + } + } + + if (UltraWideaddress == nullptr) { + constexpr auto UltraWideStringObfuscated = make_obfuscated<0x4A>("C7 47 ?? ?? ?? ?? ?? C7 83 ?? ?? ?? ?? ?? ?? ?? ?? 48 8B ?? ?? ?? 48 83"); + UltraWideaddress = Memory::AOBScan("", UltraWideStringObfuscated.decrypt(), PAGE_EXECUTE_READ); + + if (!UltraWideaddress) + logger->warn("Aspect ratio signature not found. Maybe your game has been updated and is no more compatible with this plugin."); + else { + logger->info("Aspect ratio found at address: 0x{:X}.", reinterpret_cast(UltraWideaddress)); + UltraWideaddress += 0x3; + } + } + + if (!Cameraaddress) { + constexpr auto DOFStringObfuscated = make_obfuscated<0x4A>("E8 ?? ?? ?? ?? F2 0F ?? ?? ?? ?? 48 8D ?? ?? F3 0F ?? ?? ?? ?? ?? ?? 48 8D"); + Cameraaddress = Memory::AOBScan("", DOFStringObfuscated.decrypt(), PAGE_EXECUTE_READ); + + if (!Cameraaddress) + logger->warn("Camera signature not found. Maybe your game has been updated and is no more compatible with this plugin."); + else { + logger->info("Camera signature found at address: 0x{:X}.", reinterpret_cast(Cameraaddress)); + Cameraaddress += 0x17; + } + } + + if (!DOFaddress) { // + // 48 ?? ?? 8B ?? ?? E8 ?? ?? ?? ?? 48 ?? ?? 48 6B ?? ?? 48 8D + constexpr auto DOFStringObfuscated = make_obfuscated<0x4A>("83 ?? ?? ?? 0F 8E ?? ?? ?? ?? 0F 2F ?? ?? ?? ?? ?? 0F 83 ?? ?? ?? ?? 0F 2F ?? ?? ?? ?? ?? 0F 83"); + 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(DOFaddress)); + //DOFaddress += 0x3; + } + } + + if (!CAaddress) { + constexpr auto CAStringObfuscated = make_obfuscated<0x4A>("7F ?? 89 B3 ?? ?? ?? ?? 8B ?? ?? 39 05 ?? ?? ?? ?? 7E"); + 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(CAaddress)); + } + + if (!Vignettingaddress) { + constexpr auto CAStringObfuscated = make_obfuscated<0x4A>("8B ?? 83 ?? ?? 7D ?? 89 B3 ?? ?? ?? ?? EB ?? 83"); + Vignettingaddress = Memory::AOBScan("", CAStringObfuscated.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(Vignettingaddress)); + } + + if (!Fogaddress) { + constexpr auto FogStringObfuscated = make_obfuscated<0x4A>("75 ?? B3 ?? EB ?? 32 ?? 48 8B ?? ?? ?? 48 ?? ?? 74 ?? E8 ?? ?? ?? ?? 0F ?? ?? 48 8B"); + 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(Fogaddress)); + } + } + + if (UltraWideaddress && FOVaddress && Cameraaddress && 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(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 ?? F2 8B ?? 48 ?? ?? 74 ?? 4C 8D ?? ?? ?? ?? ?? EB ?? 48 8D ?? ?? ?? ?? ?? E8 ?? ?? ?? ?? 4C"); + 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 ?? ?? 48 89 ?? ?? ?? ?? ?? 4D"); + 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(Memory::GetOffsetFromOpcode(GObjectsaddress + 0x3) - baseModule); + logger->info("GObjects offset is: 0x{:X}.", gObjectsOffset); + Offsets::GObjects = static_cast(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 gAppendStringOffsetOpt = UE::CalculateOffset("", AppendStringaddress); + uint32_t gAppendStringOffset = *gAppendStringOffsetOpt; + logger->info("AppendString offset is: 0x{:X}.", gAppendStringOffset); + Offsets::AppendString = static_cast(gAppendStringOffset);// Update AppendString + } + + 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 gProcessEventOffsetOpt = UE::CalculateOffset("", ProcessEventaddress); + uint32_t gProcessEventOffset = *gProcessEventOffsetOpt; + logger->info("Process Event offset is: 0x{:X}.", gProcessEventOffset); + Offsets::ProcessEvent = static_cast(gProcessEventOffset);// Update ProcessEvent offset + } + } + logger->info("-------------- Fixes initialisation -------------"); + } + + if (!init && FOVaddress) FOVFixEnabled(); + if (!init && UltraWideaddress) UltraWideFixEnabled(); + if (!init && Cameraaddress) CameraFixEnabled(); + 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) +{ // Set each fix individually + 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::Camera) { g_camera_fix_enabled = enabled; CameraFixEnabled(); } + 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; +} + +extern "C" __declspec(dllexport) void SetCameraDistance(float cameraDistance) +{ + g_CameraDistanceValue = cameraDistance; +} + +// Getters for Reshade addon call +extern "C" __declspec(dllexport) void GetGameInfos(GameInfos* infos) { + if (!infos) return; + + infos->FOVIn = g_FOV_In; + infos->CompensatedFOV = g_CompensatedFOV; + infos->FOVOut = g_FOV_Out; + infos->cameraIn = g_CameraIn; + infos->cameraOut = g_CameraOut; + infos->consoleEnabled = g_Console_Enabled; +} + +// Code injection functions +static void FOVFixEnabled() { + if (g_fix_enabled && (g_fov_fix_enabled || g_ultrawide_fix_enabled) && FOVaddress) { + if (!FOVHook) { // Hook only once + FOVHook = safetyhook::create_mid(FOVaddress, + [](SafetyHookContext& ctx) { + g_FOV_In = ctx.xmm0.f32[0]; + if (g_fix_enabled && g_ultrawide_fix_enabled) + ctx.xmm0.f32[0] = Maths::CompensateHorizontalFOV(g_FOV_In, baseAspect, aspectRatio); + g_CompensatedFOV = ctx.xmm0.f32[0]; + 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 CameraFixEnabled() { + if (g_fix_enabled && g_camera_fix_enabled && Cameraaddress) { + if (!CameraHook) { // Hook only once + CameraHook = safetyhook::create_mid(Cameraaddress, + [](SafetyHookContext& ctx) { + g_CameraIn = ctx.xmm1.f32[0]; + ctx.xmm1.f32[0] *= (g_fix_enabled && g_camera_fix_enabled ? g_CameraDistanceValue : 1.f); + g_CameraOut = ctx.xmm1.f32[0]; + }); + } + else CameraHook.enable(); + logger->info("Camera distance fix enabled"); + } + if (!(g_fix_enabled && g_camera_fix_enabled) && Cameraaddress) { + if (CameraHook) CameraHook.disable(); + logger->info("Camera distance fix disabled"); + } +} + +static void DOFFixEnabled() { + if (g_fix_enabled && g_DOF_fix_enabled && DOFaddress) { + if (!DOFHook) { + DOFHook = safetyhook::create_mid(DOFaddress, + [](SafetyHookContext& ctx) { + if (!ctx.rax) return; + uint8_t* rDepthOfFieldQuality = reinterpret_cast(ctx.rax) + 0x4; + if (g_DOF_fix_enabled) + Memory::PatchBytes(rDepthOfFieldQuality, "\x00", 1); // r.DepthOfFieldQuality = 0 <= memory patched + else + Memory::RestoreBytes(rDepthOfFieldQuality); // r.DepthOfFieldQuality = 0 <= memory patched + }); + } + logger->info("Depth of field fix enabled"); + } + if (!(g_fix_enabled && g_DOF_fix_enabled) && DOFaddress) + logger->info("Depth of field fix disabled"); +} + +// Memory patch fixes +static void UltraWideFixEnabled() { + if (g_fix_enabled && g_ultrawide_fix_enabled && UltraWideaddress) { + const char* newAspectRatio = Memory::Float32ToHexBytes(aspectRatio); // Converts new apsect ratio in 4 char bytes + Memory::PatchBytes(UltraWideaddress, newAspectRatio, 4); // mov[rdi + 48], 3FE38E39 <== patch here + logger->info("Ultra wide fix enabled"); + FOVFixEnabled(); + } + if (!(g_fix_enabled && g_ultrawide_fix_enabled) && UltraWideaddress) { + Memory::RestoreBytes(UltraWideaddress); + logger->info("Ultra wide fix disabled"); + if (!g_fov_fix_enabled) FOVFixEnabled(); + } +} + +static void CAFixEnabled() { + if (g_fix_enabled && g_CA_fix_enabled && CAaddress) { + Memory::PatchBytes(CAaddress, "\x90\x90", 2); // NOP x 2 r.SceneColorFringeQuality = 0 + logger->info("Chromatics aberrations fix enabled"); + } + if (!(g_fix_enabled && g_CA_fix_enabled) && CAaddress) { + Memory::RestoreBytes(CAaddress); + logger->info("Chromatics 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) { + Memory::PatchBytes(Fogaddress, "\xEB", 1); // jmp r.Fog 0 + logger->info("Fog fix enabled"); + } +} + +// UE Console creation +static void EnableConsole() +{ + 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(NewObject); + auto end = std::chrono::high_resolution_clock::now(); + std::chrono::duration 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()); + g_Console_Enabled = true; + } + else + logger->error("Could not spawn console object"); + + logger->info("------------------ User inputs ------------------"); + }).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("Silent Hill 2 2024", std::make_shared(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; +} \ No newline at end of file