Hi I am thinking of wrapping filament in kmp proje...

# kotlin-native

[dhia chemingui]

Hi I am thinking of wrapping filament in kmp project and share logic between Ios and android any suggestions
filament: https://github.com/google/filament
I dont know how to bind this or any thing just I need guidance

[Adam S]

I think it would be a big undertaking. Have you created Kotlin Native bindings before?

Kotlin's cinterop tool can only generate Kotlin bindings for C, but Filament written in C++. This can be overcome by writing extern "C" wrappers for the C++ code, which can be very hard.

I see there are already some C wrappers, for use in JNI. Maybe these could be used as a basis, or you could create some tool for automatically converting them to make them suitable for cinterop.

[Adam S]

Another step to overcome: Kotlin Native requires a very specific gcc version that isn't widely distributed. So you'd need to compile Filament with this specific gcc. In theory it shouldn't be difficult, but I always encounter problems when compiling C/C++!

I shared an example of how to create a Gradle task to compile C/C++ using Kotlin Native's gcc here: https://gist.github.com/aSemy/076591d565867839b6009f36c3b8b3ae

[dhia chemingui]

I realize later that there is cocopods integration in ios and maven dependency for android jvm target maybe using expect actual will be the best approach what do you think ?