There is no possibility to create unibyte strings from emacs modules in order to create some binary data representation
The only solution for now is to call `make_string` method and then apply `encode-coding-string' with utf-8 encoding to the result. But on large data this became very slow
Ideally I would like to use user-ptr objects as `:data' in image specification, but solution with `make_data' module method will be suitable enough
In GNU Emacs 27.0.50 (build 19, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
of 2019-03-15 built on XPS
Repository revision: 020e69d992c98fd852e835c9bd707a8d137090f2
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.11906000
System Description: Ubuntu 18.04.1 LTS
Recent messages:
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Saving file /home/lg/.emacs.d/*scratch-file*...
Wrote /home/lg/.emacs.d/*scratch-file*
Finding changes in /home/lg/dev/emacs/src/emacs-module.c...done
Saved text until "nv->set_user_ptr = module_set_user_ptr;
"
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--
lg
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lg