[luatex] callback for image loading?

Patrick Gundlach patrick at gundla.ch
Fri Sep 28 15:19:56 CEST 2018

Hello all,

is there a callback for image loading (reading)?

I use

img.scan{filename = "some filename" }

which (if I understand it correctly) calls find_image_file (with kpathsea disabled) but no reader callback. 

Why I am asking: I have an image caching mechanism for images got via http(s) and I'd like to serve these images from memory.


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