268 lines
10 KiB
C++
268 lines
10 KiB
C++
#include "Memory.hpp";
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#include "Maths.hpp";
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#include "ObfuscateString.h"
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#include <string>
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#include <spdlog/spdlog.h>
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#include <spdlog/sinks/basic_file_sink.h>
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#include <safetyhook.hpp>
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// Constants
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const std::string PLUGIN_NAME = "Metro Exodus";
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const std::string PLUGIN_LOG = PLUGIN_NAME + ".log";
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const std::string gameExecutable = "MetroExodus.exe";
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static int screenWidth = GetSystemMetrics(SM_CXSCREEN);
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static int screenHeight = GetSystemMetrics(SM_CYSCREEN);
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static float aspectRatio = (float)screenWidth / screenHeight;
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// Logger
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std::shared_ptr<spdlog::logger> logger;
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// Plugin states
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static bool AOBScanDone = false;
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static bool g_fix_enabled = false;
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static bool g_fov_fix_enabled = false;
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static bool g_cutscenes_fix_enabled = false;
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static bool g_aspect_ratio_fix_enabled = false;
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static int g_AdditionalFOVValue = 0;
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static int g_AdditionalCutscenesFOVValue = 0;
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// Shared values
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static float g_FOV_In = 0;
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static float g_FOV_Out = 0;
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// AOB Scan pointers
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static uint8_t* FOVaddress = nullptr;
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static uint8_t* CutscenesFOVaddress = nullptr;
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static uint8_t* Aspectaddress_1 = nullptr;
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static uint8_t* Aspectaddress_2 = nullptr;
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// Hooking
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static SafetyHookMid FOVHook{};
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static SafetyHookMid CutscenesFOVHook{};
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static SafetyHookMid AspectRatioHook_1{};
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static SafetyHookMid AspectRatioHook_2{};
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// Prototypes
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static void FOVFixEnabled(bool fix_enabled);
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static void CutscenesFOVFixEnabled(bool fix_enabled);
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static void AspectRatioFixEnabled(bool fix_enabled);
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extern "C" __declspec(dllexport) void SetFixEnabled(bool enabled)
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{
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g_fix_enabled = enabled;
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if (g_fix_enabled && !AOBScanDone) {
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logger->info("--------------- AOB scan started ---------------");
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if (FOVaddress == nullptr) {
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constexpr auto FOVStringObfuscated = make_obfuscated<0x4A>("3C ?? 0F 86 ?? ?? ?? ?? F3 0F");
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FOVaddress = Memory::AOBScan(gameExecutable, FOVStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
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if (!FOVaddress)
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logger->warn("FOV signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
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else {
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logger->info("FOV signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(FOVaddress));
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FOVaddress += 0x10; // Offset for the target opcode
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}
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}
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if (CutscenesFOVaddress == nullptr) {
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constexpr auto CutscenesFOVStringObfuscated = make_obfuscated<0x4A>("F3 0F ?? ?? ?? ?? ?? ?? E9 96 ?? ?? ?? 48 8B");
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CutscenesFOVaddress = Memory::AOBScan(gameExecutable, CutscenesFOVStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
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if (!CutscenesFOVaddress)
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logger->warn("Cutscenes FOV signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
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else {
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logger->info("Cutscenes FOV signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(CutscenesFOVaddress));
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CutscenesFOVaddress += 0x8; // Offset for the target opcode
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}
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}
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if (Aspectaddress_1 == nullptr) {
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constexpr auto AspectRatioStringObfuscated_1 = make_obfuscated<0x4A>("F3 0F ?? ?? ?? ?? ?? ?? F3 0F ?? ?? ?? ?? ?? ?? 89 84 ?? ?? ?? ?? ?? 8B");
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Aspectaddress_1 = Memory::AOBScan(gameExecutable, AspectRatioStringObfuscated_1.decrypt(), PAGE_EXECUTE_READ);
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if (!Aspectaddress_1)
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logger->warn("1st aspect ratio signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
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else {
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logger->info("1st aspect ratio signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(Aspectaddress_1));
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Aspectaddress_1 += 0x8; // Offset for the target opcode
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}
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}
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if (Aspectaddress_2 == nullptr) {
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constexpr auto AspectRatioStringObfuscated_2 = make_obfuscated<0x4A>("F3 0F ?? ?? ?? ?? ?? ?? 0F ?? ?? 48 8D ?? ?? ?? ?? ?? F3 48 ?? ?? ?? 49 8D");
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Aspectaddress_2 = Memory::AOBScan(gameExecutable, AspectRatioStringObfuscated_2.decrypt(), PAGE_EXECUTE_READ);
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if (!Aspectaddress_2)
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logger->warn("2nd aspect ratio signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
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else {
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logger->info("2nd aspect ratio signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(Aspectaddress_2));
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Aspectaddress_2 += 0x8; // Offset for the target opcode
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}
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if (FOVaddress && CutscenesFOVaddress && Aspectaddress_1 && Aspectaddress_2) {
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logger->info("All AOB signatures found. Ready to patch...");
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logger->info("--------------- AOB scan finished ---------------");
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AOBScanDone = true;
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}
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}
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}
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if (g_fix_enabled) {
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if (FOVaddress) FOVFixEnabled(g_fov_fix_enabled);
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if (CutscenesFOVaddress) CutscenesFOVFixEnabled(g_cutscenes_fix_enabled);
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if (Aspectaddress_1 && Aspectaddress_2) AspectRatioFixEnabled(g_aspect_ratio_fix_enabled);
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}
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else {
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if (FOVaddress) FOVFixEnabled(false);
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if (CutscenesFOVaddress) CutscenesFOVFixEnabled(false);
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if (Aspectaddress_1 && Aspectaddress_2) AspectRatioFixEnabled(false);
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logger->info("All fixes disabled.");
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}
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}
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// Setters for Reshade addon call
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extern "C" __declspec(dllexport) void SetFOVFixEnabled(bool enabled, bool init)
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{
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g_fov_fix_enabled = enabled;
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if (!init) FOVFixEnabled(g_fov_fix_enabled);
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}
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extern "C" __declspec(dllexport) void SetCutscenesFOVFixEnabled(bool enabled, bool init)
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{
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g_cutscenes_fix_enabled = enabled;
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if (!init) CutscenesFOVFixEnabled(g_cutscenes_fix_enabled);
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}
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extern "C" __declspec(dllexport) void SetAspectRatioFixEnabled(bool enabled, bool init)
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{
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g_aspect_ratio_fix_enabled = enabled;
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if (!init) {
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AspectRatioFixEnabled(g_aspect_ratio_fix_enabled);
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}
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}
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extern "C" __declspec(dllexport) void SetFOV(int fov)
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{
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g_AdditionalFOVValue = fov;
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}
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extern "C" __declspec(dllexport) void SetCutscenesFOV(int fov)
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{
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g_AdditionalCutscenesFOVValue = fov;
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}
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// Getters for Reshade addon call
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extern "C" __declspec(dllexport) float GetFOVIn() {
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return g_FOV_In;
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}
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extern "C" __declspec(dllexport) float GetFOVOut() {
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return g_FOV_Out;
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}
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// Injection functions
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static void FOVFixEnabled(bool fix_enabled) {
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if (g_fix_enabled && fix_enabled && FOVaddress != nullptr) {
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if (!FOVHook) { // Hook only once
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FOVHook = safetyhook::create_mid(FOVaddress,
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[](SafetyHookContext& ctx) {
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g_FOV_In = ctx.xmm2.f32[0];
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g_FOV_Out = ctx.xmm2.f32[0] += g_AdditionalFOVValue;
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});
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}
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else FOVHook.enable();
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logger->info("FOV fix enabled");
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}
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if (!fix_enabled && FOVHook) {
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FOVHook.disable();
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logger->info("FOV fix disabled");
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}
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}
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static void CutscenesFOVFixEnabled (bool fix_enabled) {
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if (g_fix_enabled && fix_enabled && CutscenesFOVaddress) {
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if (!CutscenesFOVHook) { // Hook only once
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CutscenesFOVHook = safetyhook::create_mid(CutscenesFOVaddress,
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[](SafetyHookContext& ctx) {
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g_FOV_In = ctx.xmm2.f32[0];
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g_FOV_Out = ctx.xmm2.f32[0] += g_AdditionalCutscenesFOVValue;
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});
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}
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else CutscenesFOVHook.enable();
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logger->info("Cutscenes FOV fix enabled");
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}
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if (!fix_enabled && CutscenesFOVHook) {
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CutscenesFOVHook.disable();
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logger->info("Cutscenes FOV fix disabled");
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}
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}
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static void AspectRatioFixEnabled(bool fix_enabled) {
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if (g_fix_enabled && fix_enabled && Aspectaddress_1 && Aspectaddress_2) {
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if (!AspectRatioHook_1) {
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AspectRatioHook_1 = safetyhook::create_mid(Aspectaddress_1,
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[](SafetyHookContext& ctx) {
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ctx.xmm6.f32[0] = aspectRatio;
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});
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}
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else {
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AspectRatioHook_1.enable();
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}
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if (!AspectRatioHook_2) {
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AspectRatioHook_2 = safetyhook::create_mid(Aspectaddress_2,
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[](SafetyHookContext& ctx) {
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ctx.xmm2.f32[0] = aspectRatio;
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});
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}
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else {
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AspectRatioHook_2.enable();
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}
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logger->info("Aspect ratio fix enabled");
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}
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if (!fix_enabled) {
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if (AspectRatioHook_1 && Aspectaddress_1)
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AspectRatioHook_1.disable();
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if (AspectRatioHook_2 && Aspectaddress_2)
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AspectRatioHook_2.disable();
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uint8_t* Aspectaddress_3 = Aspectaddress_2 - 0x12;
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int32_t rel_offset = static_cast<int32_t>(Aspectaddress_3[4]) | (static_cast<int32_t>(Aspectaddress_3[5]) << 8) |
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(static_cast<int32_t>(Aspectaddress_3[6]) << 16) | (static_cast<int32_t>(Aspectaddress_3[7]) << 24);
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// Calculer l'adresse effective (rip + offset), instruction fait 8 octets
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uint8_t* target_addr = Aspectaddress_3 + 8 + rel_offset; // opcode is 8 bytes long
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*reinterpret_cast<float*>(target_addr) = 1.78f; // movss xmm2, [MetroExodus.exe + 164FEBC] patch base + offset
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logger->info("Aspect ratio fix disabled");
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}
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}
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// Initialisation de spdlog avec format personnalisé
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static void InitializeLogger()
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{
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try
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{
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logger = spdlog::basic_logger_mt("Fixlib", PLUGIN_LOG, true);
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spdlog::set_default_logger(logger);
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// Format : [YYYY-MM-DD HH:MM:SS] [INFO] message
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spdlog::set_pattern("[%Y-%m-%d %H:%M:%S] [%^%l%$] %v");
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spdlog::set_level(spdlog::level::debug);
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logger->flush_on(spdlog::level::debug); // Flush automatically
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}
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catch (const spdlog::spdlog_ex& ex)
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{
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std::string plugin_error_message = "Could not open " + PLUGIN_LOG;
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MessageBoxA(nullptr, plugin_error_message.c_str(), "Logger Error", MB_ICONERROR | MB_OK);
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}
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}
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// Standard dll entry
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BOOL APIENTRY DllMain(HMODULE hModule, DWORD reason, LPVOID)
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{
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if (reason == DLL_PROCESS_ATTACH)
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{
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InitializeLogger();
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logger->info("Plugin {} loaded.", PLUGIN_NAME);
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}
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else if (reason == DLL_PROCESS_DETACH)
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{
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logger->info("Plugin {} unloaded.", PLUGIN_NAME);
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spdlog::drop_all();
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}
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return TRUE;
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} |