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Diffstat (limited to 'loader_launcher_proxy/dllmain.cpp')
-rw-r--r--loader_launcher_proxy/dllmain.cpp158
1 files changed, 158 insertions, 0 deletions
diff --git a/loader_launcher_proxy/dllmain.cpp b/loader_launcher_proxy/dllmain.cpp
new file mode 100644
index 00000000..7a778208
--- /dev/null
+++ b/loader_launcher_proxy/dllmain.cpp
@@ -0,0 +1,158 @@
+#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;
+}