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#include "pch.h"
#include <stdio.h>
#include <string>
#include <system_error>
#include <Shlwapi.h>
#include <sstream>
#include <fstream>
HMODULE hLauncherModule;
HMODULE hHookModule;
HMODULE hTier0Module;
using CreateInterfaceFn = void* (*)(const char* pName, int* pReturnCode);
// does not seem to ever be used
extern "C" _declspec(dllexport) void* __fastcall CreateInterface(const char* pName, int* pReturnCode)
{
//AppSystemCreateInterfaceFn(pName, pReturnCode);
printf("external CreateInterface: name: %s\n", pName);
static CreateInterfaceFn launcher_CreateInterface = (CreateInterfaceFn)GetProcAddress(hLauncherModule, "CreateInterface");
auto res = launcher_CreateInterface(pName, pReturnCode);
printf("external CreateInterface: return code: %p\n", res);
return res;
}
bool GetExePathWide(wchar_t* dest, DWORD destSize)
{
if (!dest) return NULL;
if (destSize < MAX_PATH) return NULL;
DWORD length = GetModuleFileNameW(NULL, dest, destSize);
return length && PathRemoveFileSpecW(dest);
}
FARPROC GetLauncherMain()
{
static FARPROC Launcher_LauncherMain;
if (!Launcher_LauncherMain)
Launcher_LauncherMain = GetProcAddress(hLauncherModule, "LauncherMain");
return Launcher_LauncherMain;
}
void LibraryLoadError(DWORD dwMessageId, const wchar_t* libName, const wchar_t* location)
{
char text[2048];
std::string message = std::system_category().message(dwMessageId);
sprintf_s(text, "Failed to load the %ls at \"%ls\" (%lu):\n\n%hs", libName, location, dwMessageId, message.c_str());
MessageBoxA(GetForegroundWindow(), text, "Northstar Launcher Proxy Error", 0);
}
BOOL APIENTRY DllMain( HMODULE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
)
{
switch (ul_reason_for_call)
{
case DLL_PROCESS_ATTACH:
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}
wchar_t exePath[4096];
wchar_t dllPath[4096];
bool ShouldLoadNorthstar()
{
bool loadNorthstar = !strstr(GetCommandLineA(), "-vanilla");
if (!loadNorthstar)
return loadNorthstar;
auto runNorthstarFile = std::ifstream("run_northstar.txt");
if (runNorthstarFile)
{
std::stringstream runNorthstarFileBuffer;
runNorthstarFileBuffer << runNorthstarFile.rdbuf();
runNorthstarFile.close();
if (runNorthstarFileBuffer.str()._Starts_with("0"))
loadNorthstar = false;
}
return loadNorthstar;
}
bool LoadNorthstar()
{
FARPROC Hook_Init = nullptr;
{
swprintf_s(dllPath, L"%s\\Northstar.dll", exePath);
hHookModule = LoadLibraryExW(dllPath, 0i64, 8u);
if (hHookModule) Hook_Init = GetProcAddress(hHookModule, "InitialiseNorthstar");
if (!hHookModule || Hook_Init == nullptr)
{
LibraryLoadError(GetLastError(), L"Northstar.dll", dllPath);
return false;
}
}
((bool (*)()) Hook_Init)();
return true;
}
extern "C" __declspec(dllexport) int LauncherMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
{
if (!GetExePathWide(exePath, 4096))
{
MessageBoxA(GetForegroundWindow(), "Failed getting game directory.\nThe game cannot continue and has to exit.", "Northstar Launcher Proxy Error", 0);
return 1;
}
bool loadNorthstar = ShouldLoadNorthstar();
if (loadNorthstar)
{
if (!LoadNorthstar())
return 1;
}
//else printf("\n\n WILL !!!NOT!!! LOAD NORTHSTAR\n\n");
swprintf_s(dllPath, L"%s\\bin\\x64_retail\\launcher.org.dll", exePath);
hLauncherModule = LoadLibraryExW(dllPath, 0i64, 8u);
if (!hLauncherModule)
{
LibraryLoadError(GetLastError(), L"launcher.org.dll", dllPath);
return 1;
}
// this makes zero sense given tier0.dll is already loaded via imports on launcher.dll, but we do it for full consistency with original launcher exe
// and to also let load callbacks in Northstar work for tier0.dll
swprintf_s(dllPath, L"%s\\bin\\x64_retail\\tier0.dll", exePath);
hTier0Module = LoadLibraryW(dllPath);
if (!hTier0Module)
{
LibraryLoadError(GetLastError(), L"tier0.dll", dllPath);
return 1;
}
}
auto LauncherMain = GetLauncherMain();
if (!LauncherMain)
MessageBoxA(GetForegroundWindow(), "Failed loading launcher.org.dll.\nThe game cannot continue and has to exit.", "Northstar Launcher Proxy Error", 0);
//auto result = ((__int64(__fastcall*)())LauncherMain)();
//auto result = ((signed __int64(__fastcall*)(__int64))LauncherMain)(0i64);
return ((int(__fastcall*)(HINSTANCE, HINSTANCE, LPSTR, int))LauncherMain)(hInstance, hPrevInstance, lpCmdLine, nCmdShow);
}
// doubt that will help us here (in launcher.dll) though
extern "C" {
__declspec(dllexport) DWORD AmdPowerXpressRequestHighPerformance = 0x00000001;
__declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
}
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