wine support

closes #80 #97

src/client/component/resources.cpp

@@ -32,20 +32,34 @@ namespace resources
 	public:
 		~component()
 		{
+			if (utils::nt::is_wine())
+			{
+				return;
+			}
+
 			if (icon) DestroyIcon(icon);
 			if (splash) DeleteObject(splash);
 		}
 
 		void post_start() override
 		{
-			const utils::nt::library self;
+			if (utils::nt::is_wine())
+			{
+				return;
+			}
 
+			const utils::nt::library self;
 			icon = LoadIconA(self.get_handle(), MAKEINTRESOURCEA(ID_ICON));
 			splash = LoadImageA(self.get_handle(), MAKEINTRESOURCEA(IMAGE_SPLASH), 0, 0, 0, LR_COPYFROMRESOURCE);
 		}
 
 		void* load_import(const std::string& library, const std::string& function) override
 		{
+			if (utils::nt::is_wine())
+			{
+				return nullptr;
+			}
+
 			if (library == "USER32.dll")
 			{
 				if (function == "LoadIconA")

src/client/component/splash.cpp

@@ -13,13 +13,18 @@ namespace splash
 	public:
 		void post_start() override
 		{
+			if (utils::nt::is_wine())
+			{
+				return;
+			}
+
 			const utils::nt::library self;
 			image_ = LoadImageA(self, MAKEINTRESOURCE(IMAGE_SPLASH), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR);
 		}
 
 		void post_load() override
 		{
-			if (game::environment::is_dedi())
+			if (utils::nt::is_wine() || game::environment::is_dedi())
 			{
 				return;
 			}
@@ -31,12 +36,20 @@ namespace splash
 		{
 			// Disable native splash screen
 			utils::hook::set<uint8_t>(0xD58240_b, 0xC3);
+			if (!utils::nt::is_wine())
+			{
 				utils::hook::jump(0xD584F0_b, destroy_stub, true);
 				utils::hook::jump(0xD58530_b, destroy_stub, true);
 			}
+		}
 
 		void pre_destroy() override
 		{
+			if (utils::nt::is_wine() || game::environment::is_dedi())
+			{
+				return;
+			}
+
 			this->destroy();
 
 			MSG msg;

src/client/component/steam_proxy.cpp

@@ -40,6 +40,12 @@ namespace steam_proxy
 			error,
 		};
 
+		bool is_disabled()
+		{
+			static const auto disabled = utils::flags::has_flag("nosteam");
+			return disabled;
+		}
+
 		void* load_client_engine()
 		{
 			if (!steam_client_module_) return nullptr;
@@ -175,13 +181,18 @@ namespace steam_proxy
 	public:
 		void post_load() override
 		{
+			if (game::environment::is_dedi() || is_disabled() || !FindWindowA(0, "Steam"))
+			{
+				return;
+			}
+
 			load_client();
 			perform_cleanup_if_needed();
 		}
 
 		void post_unpack() override
 		{
-			if (game::environment::is_dedi())
+			if (game::environment::is_dedi() || is_disabled() || !FindWindowA(0, "Steam"))
 			{
 				return;
 			}

src/client/component/system_check.cpp

@@ -4,8 +4,9 @@
 
 #include "game/game.hpp"
 
-#include <utils/io.hpp>
 #include <utils/cryptography.hpp>
+#include <utils/io.hpp>
+#include <utils/nt.hpp>
 
 namespace system_check
 {
@@ -66,12 +67,15 @@ namespace system_check
 		void verify_binary_version()
 		{
 			const auto value = *reinterpret_cast<DWORD*>(0x1337_b);
+			if (!utils::nt::is_wine())
+			{
 				if (value != 0xB43C9275)
 				{
 					throw std::runtime_error("Unsupported Call of Duty: Infinite Warfare version");
 				}
 			}
 		}
+	}
 
 	bool is_valid()
 	{

src/client/steam/steam.cpp

@@ -115,8 +115,8 @@ namespace steam
 
 	bool SteamAPI_Init()
 	{
-		const std::filesystem::path steam_path = SteamAPI_GetSteamInstallPath();
+		const std::filesystem::path steam_path = steam::SteamAPI_GetSteamInstallPath();
-		if (steam_path.empty()) return false;
+		if (steam_path.empty()) return true; // h1-mod has this as true, is this right?
 
 		::utils::nt::library::load(steam_path / "tier0_s64.dll");
 		::utils::nt::library::load(steam_path / "vstdlib_s64.dll");
@@ -165,17 +165,23 @@ namespace steam
 			return install_path.data();
 		}
 
-		HKEY reg_key;
-		if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, "Software\\WOW6432Node\\Valve\\Steam", 0, KEY_QUERY_VALUE,
-		                  &reg_key) ==
-			ERROR_SUCCESS)
-		{
 		char path[MAX_PATH] = {0};
 		DWORD length = sizeof(path);
-			RegQueryValueExA(reg_key, "InstallPath", nullptr, nullptr, reinterpret_cast<BYTE*>(path),
-			                 &length);
-			RegCloseKey(reg_key);
 
+		std::string path_str;
+		if (::utils::io::read_file("steam_path.txt", &path_str)) // steam_path.txt in root for directory
+		{
+			install_path = path_str;
+			return install_path.data();
+		}
+
+		// check if Steam contains information in registry for the install path
+		HKEY reg_key;
+		if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, "Software\\WOW6432Node\\Valve\\Steam", 0, KEY_QUERY_VALUE,
+		                  &reg_key) == ERROR_SUCCESS)
+		{
+			RegQueryValueExA(reg_key, "InstallPath", nullptr, nullptr, reinterpret_cast<BYTE*>(path), &length);
+			RegCloseKey(reg_key);
 			install_path = path;
 		}
 

src/common/utils/nt.cpp

@@ -213,6 +213,17 @@ namespace utils::nt
 		return nullptr;
 	}
 
+	bool is_wine()
+	{
+		static const auto has_wine_export = []() -> bool
+		{
+			const library ntdll("ntdll.dll");
+			return ntdll.get_proc<void*>("wine_get_version");
+		}();
+
+		return has_wine_export;
+	}
+
 	bool is_shutdown_in_progress()
 	{
 		static auto* shutdown_in_progress = []

src/common/utils/nt.hpp

@@ -165,6 +165,8 @@ namespace utils::nt
 		HANDLE handle_{ InvalidHandle };
 	};
 
+	bool is_wine();
+
 	bool is_shutdown_in_progress();
 
 	__declspec(noreturn) void raise_hard_exception();