m039 / xlis

Simple examples of cross-language interactions

Cross-Language Interaction Sandbox

Various experiments with programming languages and platforms.

Examples of cross-language polymorphism

First language in the name of a folder is a host language. For example, CSharp-Cpp-Interop means "I want to use C++ in a C# enviroment".

C# and C++

• CSharp-Cpp-CppSharp
• CSharp-Cpp-Interop
• CSharp-Cpp-SWIG
• Cpp-CSharp-Blackmire
• Cpp-CSharp-SharpCpp

Swift and C++

• ObjC-Swift-Interop

Example in multiplatform environment

• Cpp-Cross-Platform - example of using C++ on iOS, Android, Windows and Mac with Xamarin.

Notes

• CppLibraryProject is copy-pasted and slightly modified across the projects, to make it obvious which differences each approach has.
• All projects were tested on mac.

xlis's Issues

Quick question / Experience feedback

Hi Dmitry,

Hope you are all well !

Context:

I wanted to ask you a feedback about your cross-compilation experience as I am also working on some projects that would require to automatically generated unsafe bindings on some C/C++ projects. The difference with your experience is that I would like to create native plugins for Unity3D and not for Xamarin, and probably to build them with CMake. ^^

Actually, I am making some experiments with a couple of CMake macros, mainly to get all librairies properties (headers files list, define the expected library type per platforms like iOS (static lib) /Android (shared lib),... but I cannot test/forecast the worthiness of my efforts for a wider scope of integration.

Some examples of C++ projects to bind on my wish list :

• https://github.com/hunter-packages/opencv
• https://github.com/hunter-packages/dlib

  • I know a Unity Plugin for Dlib, for example, but I would like to develop a pattern that I can apply to some other libs.

    • https://github.com/ardevar/Mask/blob/master/Assets/DlibFaceLandmarkDetector/Scripts/DisposableDlibObject.cs
    • https://github.com/ardevar/Mask/blob/master/Assets/DlibFaceLandmarkDetector/Scripts/FaceLandmarkDetector.cs

Question:
So, I am not sure if it would be possible to automate in a reliable way the generation of native plugins for U3D with https://github.com/mono/CppSharp from the Mono team ?

From your latest tests/experiments, would u see a way to automate such process with tools like Hunter/Polly ?

Ps #1. I saw that you were familiar with Polly in some shell scripts.
Ps #2. Please find some references in order to save u some time of research on these topics. ^^

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CMake driven examples of Unity Native Plugins (manually wrapped):

• https://github.com/hellowod/unity-plugins-development
• https://github.com/mixpanel/mixpanel-unity (with SWIG)
• https://github.com/zillemarco/CppPlugGen (with CppSharp)
• https://github.com/zillemarco/CppSharp.CLI
• https://github.com/zillemarco/CppPlug

**Docs - Native Plugins for Unity3D **

• http://www.alanzucconi.com/2015/10/11/how-to-write-native-plugins-for-unity/
• https://docs.unity3d.com/Manual/AndroidNativePlugins.html
• https://docs.unity3d.com/Manual/PluginsForIOS.html

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Cheers,
Richard