Unsupported image depth

[TidbitSoftware]

Hello,
First off, thank you for making this very cool tool public! I am having an issue at runtime: I have input two .png images, but am getting,

Unsupported image depth
Can't read (invalid?) image file: <file>

I suspect that the second message is actually a result of the error pointed to in the first. I grep'ed the source, but it wasn't clear what the valid range is for image depth. Do you have documentation on this?

[kallaballa]

Hello, First off, thank you for making this very cool tool public!

Thx!

I am having an issue at runtime: I have input two .png images, but am getting,

Unsupported image depth
Can't read (invalid?) image file: <file>

I suspect that the second message is actually a result of the error pointed to in the first. I grep'ed the source, but it wasn't clear what the valid range is for image depth. Do you have documentation on this?

No documenation yet.
The exception is raised here: https://github.com/kallaballa/Poppy/blob/f0e41fd1fcb2db185d90dd280ebf73b58e2e66ef/src/poppy.cpp#L145C1-L147
Supported are images with uchar samples and 1 channels (gray), 3 channels (rgb) or 4 channels (rgba).

[lasconic]

I had the same problem on Mac M1. The depth was 0.
The solution : don't link sdl2_image while the code include SDL everywhere.
See also https://stackoverflow.com/questions/34642644/weird-sdl-surface-format-bytesperpixel-value