refactor: migrate old code

materializer/Utilities.cpp

@@ -2,4 +2,55 @@
 
 namespace VSW::Materializer::Utilities {
 
+	std::string RelativeAddress(const void* absolute_addr) {
+		// prepare return value
+		std::string ret("<error>");
+
+		// If address is nullptr, return directly
+		if (absolute_addr == nullptr) {
+			ret = "<nullptr>";
+			return ret;
+		}
+
+		// Get the module handle which given function address belongs to
+		// Reference: https://stackoverflow.com/questions/557081/how-do-i-get-the-hmodule-for-the-currently-executing-code
+		HMODULE hModule = NULL;
+		GetModuleHandleExW(
+			GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,	// get address and do not inc ref counter.
+			(LPCWSTR)absolute_addr,
+			&hModule);
+		if (hModule == NULL)
+			return ret;
+
+		// Get full path to module
+		YYCC::yycc_u8string u8_module_path;
+		if (!YYCC::WinFctHelper::GetModuleFileName(hModule, u8_module_path))
+			return ret;
+		// Then get its file name part
+		auto module_path = YYCC::FsPathPatch::FromUTF8Path(u8_module_path.c_str());
+		auto u8_module_name = YYCC::FsPathPatch::ToUTF8Path(module_path.filename());
+		
+		// Get the base address of current module
+		// HMODULE is the base address of loaded module
+		// Reference: https://stackoverflow.com/questions/4298331/exe-or-dll-image-base-address
+		uintptr_t relative_addr = reinterpret_cast<uintptr_t>(absolute_addr) - reinterpret_cast<uintptr_t>(hModule);
+		
+		// get final result
+		auto u8_ret = YYCC::StringHelper::Printf(YYCC_U8("%s+%" PRI_XPTR_LEFT_PADDING PRIXPTR), u8_module_name.c_str(), relative_addr);
+		ret = YYCC::EncodingHelper::ToOrdinaryView(u8_ret);
+		return ret;
+	}
+
+	void CopyGuid(int64_t& dst, const CKGUID& src) {
+		// todo: use template argument to implement this to improve performance
+		if (sizeof(dst) != sizeof(src))
+			throw std::invalid_argument("CKGUID size error");
+		std::memcpy(&dst, &src, sizeof(int64_t));
+	}
+
+	void CopyCKString(std::string& storage, const char* str) {
+		if (str == nullptr) storage = "<unamed>";
+		else storage = str;
+	}
+
 }