ByReference to Struct, how to ?

[jsorel]

Hello,

I am trying to make a binding for Khronos libKTX : https://github.com/KhronosGroup/KTX-Software
(second time I use JNR-FFI, very nice lib by the way)

But I struggle on pointers to struct.

Here you can see the function call which is the problem : https://github.com/KhronosGroup/KTX-Software/blob/a7159924a6095488d8fb1ded358113d85813f669/include/ktx.h#L895

ktxTexture_CreateFromNamedFile(const char* const filename,
                               ktxTextureCreateFlags createFlags,
                               ktxTexture** newTex);

I translated it to Java as :

KTXErrorCode ktxTexture_CreateFromNamedFile(String filename, int createFlags, PointerByReference texture);

but I can't manage to map this pointer back to a Struct, there is a 'useMemory' method but it doesn't do the trick :

KTXTexture texture = new KTXTexture(runtime);
PointerByReference adrRef = new PointerByReference();
KTXErrorCode error = ktx.ktxTexture_CreateFromNamedFile(
        "/.../rgb-reference.ktx",
        KTX.KTX_TEXTURE_CREATE_LOAD_IMAGE_DATA_BIT,
        adrRef);
texture.useMemory(adrRef.getValue());

a little help would be appreciated :)

Thank you

[jsorel]

Find the solution on my own.
I forget to map correctly a field in the KtxTexture and everything got messed up.