Windows 플레이어: IL2CPP 스크립팅 백엔드

You can use IL2CPP as an alternative to Mono for scripting backend when building projects for Windows Player.

IL2CPP를 사용하여 프로젝트를 빌드하는 경우 Unity는 스크립트의 IL 코드를 변환하고, C++로 다시 조립한 후 네이티브 바이너리를 생성합니다. 자세한 내용은 IL2CPP를 참조하십시오.

C++ source code plugins for IL2CPP

You can add C++ (.cpp) code files directly into a Unity Project when using the IL2CPP scripting backend. The C++ files act as plugins within the Plugin Inspector. If you configure the C++ files to be compatible with Windows Player, Unity compiles them together with C++ code that gets generated from managed assemblies.

To view the plugin importer settings for C++ files, click a .cpp file and select the appropriate Windows option in the Platform settings section of the Inspector:

함수들은 생성된 C++ 코드와 연결되어 있으므로 _P/Invoke를 호출할 별도의 DLL 파일은 없습니다. 이런 이유로 DLL 이름 대신 "__Internal" 키워드를 사용할 수 있으며, 이 경우 다음 예제와 같이 런타임 시점에 함수를 로드하는 대신 C++ 링커가 함수를 확인하는 역할을 맡습니다.

[DllImport("__Internal")]
private static extern int
CountLettersInString([MarshalAs(UnmanagedType.LPWStr)]string str);

You can define this kind of function in NativeFunctions.cpp as follows:

extern "C" __declspec(dllexport) int __stdcall CountLettersInString(wchar_t* str)
{
    int length = 0;
    while (*str++ != L'\0')
        length++;
    return length;
}

Because the linker resolves the function call, any error made in the function declaration on the managed side (C# code that executes under managed run time) produces a linker error instead of a run-time error. This means, no dynamic loading can take place during run time, and the function is called directly from C#, which significantly decreases the performance overhead of a P/Invoke call.

Unity compiles source code plug-ins with the same C++ compiler arguments as the generated C++ code, which can’t be modified. If some plug-in source code requires control over C++ compiler arguments, you must build a native plug-in instead. For more information, see Native plug-in.

IL2CPP build files

A project using the IL2CPP scripting backend typically produces these files:

The following files are common to projects that use IL2CPP:

추가 리소스:

• Plugin Inspector
• IL2CPP
• Use P/Invoke