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Add Metal Gear Solid Delta : Snake Eater

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This commit is contained in:
Emmanuel AYME
2025-08-28 06:27:27 +02:00
parent 8570d305fa
commit bf54e6aacc
3 changed files with 681 additions and 0 deletions
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216
Metal Gear Solid Delta/MGSDelta.vcxproj Normal file
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<RootNamespace>Metal Gear Solid Delta Snake Eater</RootNamespace>
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455
Metal Gear Solid Delta/dllmain.cpp Normal file
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#include "Memory.hpp";
#include "Maths.hpp";
#include "ObfuscateString.h"
#include <string>
#include <spdlog/spdlog.h>
#include <spdlog/sinks/rotating_file_sink.h>
#include <filesystem>
#include <safetyhook.hpp>
// Constants
const std::string PLUGIN_NAME = "MGSDSE";
const std::string PLUGIN_LOG = PLUGIN_NAME + ".log";
const std::string gameExecutable = "MGSDelta-Win64-Shipping.exe";
const float baseAspect = 1.777777791;
// 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;
// Transform screen width into bytes little-endian
float floatWidth = static_cast<float>(screenWidth);
char* bytesWidth = reinterpret_cast<char*>(&floatWidth);
// Plugin states
static bool AOBScanDone = false;
static bool g_fix_enabled = false;
static bool g_fov_fix_enabled = false;
static bool g_FPS_fix_enabled = false;
static bool g_resolution_fix_enabled = false;
static bool g_aspect_fix_enabled = false;
static bool g_DOF_fix_enabled = false;
static bool g_Vignetting_fix_enabled = false;
static bool g_Fog_fix_enabled = false;
static int g_AdditionalFOVValue = 0;
// Shared values
static float g_FOV_In = 0;
static float g_Compensated_FOV = 0;
static float g_FOV_Out = 0;
// AOB Scan pointers
static uint8_t* FOVaddress = nullptr;
static uint8_t* FPSaddress = nullptr;
static uint8_t* Resolutionaddress_1 = nullptr;
static uint8_t* Resolutionaddress_2 = nullptr;
static uint8_t* Aspectaddress = nullptr;
static uint8_t* AspectMenuaddress = nullptr;
static uint8_t* DOFaddress = nullptr;
static uint8_t* Vignettingaddress = nullptr;
static uint8_t* Fogaddress = nullptr;
// Hooking
static SafetyHookMid FOVHook{};
static SafetyHookMid FPSHook{};
static SafetyHookMid ResolutionHook{};
static SafetyHookMid AspectHook{};
static SafetyHookMid AspectMenuHook{};
static SafetyHookMid FogHook{};
// Prototypes
static void FOVFixEnabled(bool fix_enabled);
static void FPSFixEnabled(bool fix_enabled);
static void ResolutionFixEnabled(bool fix_enabled);
static void AspectFixEnabled(bool fix_enabled);
static void DOFFixEnabled(bool fix_enabled);
static void VignettingFixEnabled(bool fix_enabled);
static void FogFixEnabled(bool fix_enabled);
extern "C" __declspec(dllexport) void SetFixEnabled(bool enabled)
{
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(gameExecutable, FOVStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
//"MGSDelta-Win64-Shipping.exe" + 43A6B64 - 48 8B 01 - mov rax, [rcx]
//"MGSDelta-Win64-Shipping.exe" + 43A6B67 - FF 90 48 07 00 00 - call qword ptr[rax + 00000748]
//"MGSDelta-Win64-Shipping.exe" + 43A6B6D - F3 0F 10 40 30 - movss xmm0, [rax + 30]
//"MGSDelta-Win64-Shipping.exe" + 43A6B72 - 48 83 C4 28 - add rsp, 28
//"MGSDelta-Win64-Shipping.exe" + 43A6B76 - C3 - ret
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));
FOVaddress += 0x10;
}
}
if (Resolutionaddress_1 == nullptr) {
constexpr auto ResolutionStringObfuscated = make_obfuscated<0x4A>("C7 44 ?? ?? ?? ?? ?? ?? 0F 11 ?? ?? ?? 48 8D ?? ?? ?? 48 89 ?? ?? ?? 89 ?? ?? ?? C6 ?? ?? ?? ?? E8 ?? ?? ?? ?? 48 8B ?? ?? ?? ?? ?? 66");
Resolutionaddress_1 = Memory::AOBScan(gameExecutable, ResolutionStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
//"MGSDelta-Win64-Shipping.exe" + 43A6B64 - 48 8B 01 - mov rax, [rcx]
//"MGSDelta-Win64-Shipping.exe" + 43A6B67 - FF 90 48 07 00 00 - call qword ptr[rax + 00000748]
//"MGSDelta-Win64-Shipping.exe" + 43A6B6D - F3 0F 10 40 30 - movss xmm0, [rax + 30]
//"MGSDelta-Win64-Shipping.exe" + 43A6B72 - 48 83 C4 28 - add rsp, 28
//"MGSDelta-Win64-Shipping.exe" + 43A6B76 - C3 - ret
if (!Resolutionaddress_1)
logger->warn("Resolution signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else {
logger->info("Resolution signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(Resolutionaddress_1));
Resolutionaddress_1 += 4;
Resolutionaddress_2 = Resolutionaddress_1 + 0x3D;
}
}
if (FPSaddress == nullptr) {
constexpr auto FPSStringObfuscated = make_obfuscated<0x4A>("F3 0F ?? ?? ?? EB ?? 0F ?? ?? 48 8B ?? ?? ?? 48 8B ?? ?? ?? 48 8B ?? ?? ?? 48 8B ?? ?? ?? 0F");
FPSaddress = Memory::AOBScan(gameExecutable, FPSStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
//"MGSDelta-Win64-Shipping.exe" + 465256F - 74 02 - je "MGSDelta-Win64-Shipping.exe" + 4652573
//"MGSDelta-Win64-Shipping.exe" + 4652571 - 33 FF - xor edi, edi
//"MGSDelta-Win64-Shipping.exe" + 4652573 - F3 0F 10 04 3B - movss xmm0, [rbx + rdi]
//"MGSDelta-Win64-Shipping.exe" + 4652578 - EB 03 - jmp "MGSDelta-Win64-Shipping.exe" + 465257D
//"MGSDelta-Win64-Shipping.exe" + 465257A - 0F 28 C6 - movaps xmm0, xmm6
if (!FPSaddress)
logger->warn("Frame time signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else {
logger->info("Frame time signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(FPSaddress));
FPSaddress += 0x5;
}
}
if (Aspectaddress == nullptr) {
constexpr auto AspectStringObfuscated = make_obfuscated<0x4A>("C3 CC CC CC CC CC CC CC CC CC 48 89 ?? ?? ?? 57 48 83 ?? ?? 0F ?? ?? 48 ?? ?? 48 ?? ?? 0F ?? ?? F2 0F ?? ?? ?? F2 0F ?? ?? ?? 0F");
Aspectaddress = Memory::AOBScan(gameExecutable, AspectStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
//"MGSDelta-Win64-Shipping.exe" + 3A03453 - 89 41 44 - mov[rcx + 44], eax
//"MGSDelta-Win64-Shipping.exe" + 3A03456 - 8B 42 48 - mov eax, [rdx + 48]
//"MGSDelta-Win64-Shipping.exe" + 3A03459 - 89 41 48 - mov[rcx + 48], eax
//"MGSDelta-Win64-Shipping.exe" + 3A0345C - 48 8D 42 4C - lea rax, [rdx + 4C]
//"MGSDelta-Win64-Shipping.exe" + 3A03460 - 48 83 C1 4C - add rcx, 4C
if (!Aspectaddress)
logger->warn("Aspect ratio ratio signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else {
logger->info("Aspect ratio signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(Aspectaddress));
Aspectaddress = Aspectaddress + 0x63;
}
}
if (AspectMenuaddress == nullptr) {
constexpr auto AspectMenuStringObfuscated = make_obfuscated<0x4A>("66 ?? ?? ?? 66 ?? ?? ?? 0F ?? ?? F2 ?? ?? ?? 0F 11 ?? ?? ?? F2 ?? ?? ?? 0F");
AspectMenuaddress = Memory::AOBScan(gameExecutable, AspectMenuStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
//"MGSDelta-Win64-Shipping.exe" + 50155AF - F2 0F 10 05 39 88 84 07 - movsd xmm0, ["MGSDelta-Win64-Shipping.exe" + C85DDF0]
//"MGSDelta-Win64-Shipping.exe" + 50155B7 - 0F 28 DE - movaps xmm3, xmm6
//"MGSDelta-Win64-Shipping.exe" + 50155BA - F2 0F 5E 05 36888407 - divsd xmm0, ["MGSDelta-Win64-Shipping.exe" + C85DDF8]
//"MGSDelta-Win64-Shipping.exe" + 50155C2 - 66 0F 15 DE - unpckhpd xmm3, xmm6
//"MGSDelta-Win64-Shipping.exe" + 50155C6 - 66 0F 5A C8 - cvtpd2ps xmm1, xmm0
if (!AspectMenuaddress)
logger->warn("Aspect ratio ratio signature not found. Maybe your game has been updated and is no more compatible with this plugin.");
else {
logger->info("Aspect ratio signature found at address: 0x{:X}.", reinterpret_cast<uintptr_t>(AspectMenuaddress));
}
}
if (DOFaddress == nullptr) {
constexpr auto DOFStringObfuscated = make_obfuscated<0x4A>("7E ?? F6 ?? ?? ?? 74 ?? F6 83");
DOFaddress = Memory::AOBScan(gameExecutable, DOFStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
//"MGSDelta-Win64-Shipping.exe" + 2B90DE4 - 74 37 - je "MGSDelta-Win64-Shipping.exe" + 2B90E1D
//"MGSDelta-Win64-Shipping.exe" + 2B90DE6 - 83 3C 2F 00 - cmp dword ptr[rdi + rbp], 00
//"MGSDelta-Win64-Shipping.exe" + 2B90DEA - 7E 31 - jle "MGSDelta-Win64-Shipping.exe" + 2B90E1D
//"MGSDelta-Win64-Shipping.exe" + 2B90DEC - F6 40 38 08 - test byte ptr[rax + 38], 08
//"MGSDelta-Win64-Shipping.exe" + 2B90DF0 - 74 09 - je "MGSDelta-Win64-Shipping.exe" + 2B90DFB
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 (Vignettingaddress == nullptr) {
constexpr auto VignettingStringObfuscated = make_obfuscated<0x4A>("8B ?? 83 ?? ?? 7D ?? 89 B3 ?? ?? ?? ?? EB");
Vignettingaddress = Memory::AOBScan(gameExecutable, VignettingStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
//"MGSDelta-Win64-Shipping.exe" + 4496C77 - C7 83 C8 20 00 00 00 00 80 3F - mov[rbx + 000020C8], 3F800000
//"MGSDelta-Win64-Shipping.exe" + 4496C81 - 48 8B 05 D8 94 D9 0F - mov rax, ["MGSDelta-Win64-Shipping.exe" + 14230160]
//"MGSDelta-Win64-Shipping.exe" + 4496C88 - 8B 08 - mov ecx, [rax]
//"MGSDelta-Win64-Shipping.exe" + 4496C8A - 83 F9 02 - cmp ecx, 02
//"MGSDelta-Win64-Shipping.exe" + 4496C8D - 7D 08 - jnl "MGSDelta-Win64-Shipping.exe" + 4496C97
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>("74 ?? 48 8B ?? ?? ?? ?? ?? 83 ?? ?? ?? 75 ?? B3");
Fogaddress = Memory::AOBScan(gameExecutable, FogStringObfuscated.decrypt(), PAGE_EXECUTE_READ);
//"MGSDelta-Win64-Shipping.exe" + 2696A3D - 48 8B 05 BC D7 B6 11 - mov rax, ["MGSDelta-Win64-Shipping.exe" + 14204200]
//"MGSDelta-Win64-Shipping.exe" + 2696A44 - 83 78 04 01 - cmp dword ptr[rax + 04], 01
//"MGSDelta-Win64-Shipping.exe" + 2696A48 - 75 04 - jne "MGSDelta-Win64-Shipping.exe" + 2696A4E
//"MGSDelta-Win64-Shipping.exe" + 2696A4A - B3 01 - mov bl, 01
//"MGSDelta-Win64-Shipping.exe" + 2696A4C - EB 02 - jmp "MGSDelta-Win64-Shipping.exe" + 2696A50
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));
Fogaddress += 0xd;
}
}
if (FOVaddress && Resolutionaddress_1 && FPSaddress && Aspectaddress && AspectMenuaddress && DOFaddress && Vignettingaddress && Fogaddress) {
logger->info("All AOB signatures found. Ready to patch...");
AOBScanDone = true;
}
logger->info("--------------- AOB scan finished ---------------");
}
if (g_fix_enabled) {
if (FOVaddress) FOVFixEnabled(g_fov_fix_enabled || g_aspect_fix_enabled);
if (FPSaddress) FPSFixEnabled(g_FPS_fix_enabled);
if (Resolutionaddress_1) ResolutionFixEnabled(g_resolution_fix_enabled);
if (Aspectaddress) AspectFixEnabled(g_aspect_fix_enabled);
if (DOFaddress) DOFFixEnabled(g_DOF_fix_enabled);
if (Vignettingaddress) VignettingFixEnabled(g_Vignetting_fix_enabled);
if (Fogaddress) FogFixEnabled(g_Fog_fix_enabled);
}
else {
if (FOVaddress) FOVFixEnabled(false);
if (FPSaddress) FPSFixEnabled(false);
if (Resolutionaddress_1) ResolutionFixEnabled(false);
if (Aspectaddress) AspectFixEnabled(false);
if (DOFaddress) DOFFixEnabled(false);
if (Vignettingaddress) VignettingFixEnabled(false);
if (Fogaddress) FogFixEnabled(false);
logger->info("All fixes disabled.");
}
}
// Setters for Reshade addon calls
extern "C" __declspec(dllexport) void SetFOVFixEnabled(bool enabled, bool init)
{
g_fov_fix_enabled = enabled;
if (!init) FOVFixEnabled(g_fov_fix_enabled || g_aspect_fix_enabled);
}
extern "C" __declspec(dllexport) void SetFPSFixEnabled(bool enabled, bool init)
{
g_FPS_fix_enabled = enabled;
if (!init) FPSFixEnabled(g_FPS_fix_enabled);
}
extern "C" __declspec(dllexport) void SetResolutionFixEnabled(bool enabled, bool init)
{
g_resolution_fix_enabled = enabled;
if (!init) ResolutionFixEnabled(g_resolution_fix_enabled);
}
extern "C" __declspec(dllexport) void SetAspectRatioFixEnabled(bool enabled, bool init)
{
g_aspect_fix_enabled = enabled;
if (!init) AspectFixEnabled(g_aspect_fix_enabled);
}
extern "C" __declspec(dllexport) void SetDOFFixEnabled(bool enabled, bool init)
{
g_DOF_fix_enabled = enabled;
if (!init) DOFFixEnabled(g_DOF_fix_enabled);
}
extern "C" __declspec(dllexport) void SetVignettingFixEnabled(bool enabled, bool init)
{
g_Vignetting_fix_enabled = enabled;
if (!init) VignettingFixEnabled(g_Vignetting_fix_enabled);
}
extern "C" __declspec(dllexport) void SetFogFixEnabled(bool enabled, bool init)
{
g_Fog_fix_enabled = enabled;
if (!init) FogFixEnabled(g_Fog_fix_enabled);
}
extern "C" __declspec(dllexport) void SetFOV(int fov)
{
g_AdditionalFOVValue = fov;
}
// Getters for Reshade addon calls
extern "C" __declspec(dllexport) float GetFOVIn() {
return g_FOV_In;
}
extern "C" __declspec(dllexport) float GetCompensatedFOV() {
return g_Compensated_FOV;
}
extern "C" __declspec(dllexport) float GetFOVOut() {
return g_FOV_Out;
}
// Code injection functions
static void FOVFixEnabled(bool fix_enabled) {
if (g_fix_enabled && fix_enabled && FOVaddress) {
if (!FOVHook) { // Hook only once
FOVHook = safetyhook::create_mid(FOVaddress,
[](SafetyHookContext& ctx) {
g_FOV_In = ctx.xmm0.f32[0];
if (g_aspect_fix_enabled)
g_Compensated_FOV = ctx.xmm0.f32[0] = Maths::CompensateHorizontalFOV(g_FOV_In, baseAspect, aspectRatio);
else
g_Compensated_FOV = ctx.xmm0.f32[0];
g_FOV_Out = ctx.xmm0.f32[0] += (g_fov_fix_enabled ? g_AdditionalFOVValue : 0);
});
}
else FOVHook.enable();
logger->info("FOV fix enabled");
}
if (!fix_enabled) {
if (FOVHook) FOVHook.disable();
logger->info("FOV fix disabled");
}
}
static void ResolutionFixEnabled(bool fix_enabled) {
if (g_fix_enabled && fix_enabled && Resolutionaddress_1 && Resolutionaddress_2) {
Memory::PatchBytes(Resolutionaddress_1, bytesWidth, 4); // patch scree nwidth in memory
if (!ResolutionHook) { // Hook only once
ResolutionHook = safetyhook::create_mid(Resolutionaddress_2,
[](SafetyHookContext& ctx) {
ctx.xmm0.f32[0] = (float)screenHeight;
});
}
else ResolutionHook.enable();
logger->info("Resolution fix enabled");
}
if (!fix_enabled) {
if (ResolutionHook) ResolutionHook.disable();
Memory::RestoreBytes(Resolutionaddress_1);
logger->info("Resolution fix disabled");
}
}
static void FPSFixEnabled(bool fix_enabled) {
if (g_fix_enabled && fix_enabled && FPSaddress) {
if (!FPSHook) { // Hook only once
FPSHook = safetyhook::create_mid(FPSaddress,
[](SafetyHookContext& ctx) {
ctx.xmm0.f32[0] = 0;
});
}
else FPSHook.enable();
logger->info("Frame time fix enabled");
}
if (!fix_enabled) {
if (FPSHook) FPSHook.disable();
logger->info("Frame time fix disabled");
}
}
static void AspectFixEnabled(bool fix_enabled) {
if (g_fix_enabled && fix_enabled && Aspectaddress) {
if (!AspectHook) {
AspectHook = safetyhook::create_mid(Aspectaddress,
[](SafetyHookContext& ctx) {
ctx.rax = *reinterpret_cast<uint32_t*>(&aspectRatio);
});
}
else AspectHook.enable();
if (!AspectMenuHook) {
AspectMenuHook = safetyhook::create_mid(AspectMenuaddress,
[](SafetyHookContext& ctx) {
ctx.xmm0.f64[0] = static_cast<double>(aspectRatio);
});
}
else AspectMenuHook.enable();
logger->info("Aspect fix enabled");
FOVFixEnabled(fix_enabled);
}
if (!fix_enabled) {
if (AspectHook) AspectHook.disable();
if (AspectMenuHook) AspectMenuHook.disable();
logger->info("Aspect ratio fix disabled");
if (!g_fov_fix_enabled)
FOVFixEnabled(fix_enabled);
}
}
// Memory patch fixes
static void DOFFixEnabled(bool fix_enabled) {
if (g_fix_enabled && fix_enabled && DOFaddress) {
Memory::PatchBytes(DOFaddress, "\xEB", 1); // jle => jmp r.DepthOfFieldQuality = 0
logger->info("Depth of field fix enabled");
}
if (!fix_enabled && DOFaddress) {
Memory::RestoreBytes(DOFaddress);
logger->info("Depth of field fix disabled");
}
}
static void VignettingFixEnabled(bool fix_enabled) {
if (g_fix_enabled && fix_enabled && Vignettingaddress) {
Memory::PatchBytes(Vignettingaddress, "\x31\xC9", 2); // xor ecx,ecx r.Tonemapper.Quality=0
logger->info("Vignetting fix enabled");
}
if (!fix_enabled && Vignettingaddress) {
Memory::RestoreBytes(Vignettingaddress);
logger->info("Vignetting fix disabled");
}
}
static void FogFixEnabled(bool fix_enabled) {
if (g_fix_enabled && fix_enabled && Fogaddress) {
Memory::PatchBytes(Fogaddress, "\xEB", 1); // jle => jmp r.DepthOfFieldQuality = 0
logger->info("Fog fix enabled");
}
}
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>("Metal Gear Solid Delta : Snake Eater", std::make_shared<spdlog::sinks::rotating_file_sink_st>(PLUGIN_LOG, 10 * 1024 * 1024, 1));
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;
}