Image::data() uses bp_size to return a slice.

[GuillaumeSchmid]

I had a strange bug with my camera: image.data() returns an empty slice. I set the camera in unsafe mode.

If I understood correctly, In unsafe mode, bp_size is 0. This value is used by data to return an empty slice.

The data() function uses the following code to build the slice:
let length = self.xi_img.bp_size as usize / size_of::();
I think it would not work in the case of padding as well.

The type of T is u8. If the image is in RGB24, for instance, the calculation is wrong.

I suggest the implementation of a data_unsafe() that would take in template argument the XI image type (XI_RGB24), and deduce the buffer size from width and height. It would work only for buffers with no padding.

In the streamViewer c++ example, there is an example of how to extract the data according to the pixel type.

[GuillaumeSchmid]

The image struct could have a pixel_type.
The data function would use this to infer the bytes per pixel and return
the right slice size if bp_size = 0.

[GuillaumeSchmid]

Would it be a proper way to handle this problem?
I will try to implement it and test it in my app. Then do a PR draft.

[GuillaumeSchmid]

Would it be a proper way to handle this problem?
I will try to implement it and test it in my app. Then do a PR draft.

[superbort]

PR #12 fixes the issue.

However, under normal circumstances this problem should not appear. "bp_size" should be the correct size of the buffer, even in unsafe mode.

I could not reproduce the 0 in bp_size. Can you please let me know what you did to get this behavior? It is most likely a bug in the C API.