Opening webp files in Emacs 28.1 on Windows

[deleted] · 2022-04-14 00:55

I see that version 28.1 does not yet support webp. The current developmental does. Are there some tweaks I can perform to get 28.1 to show webp?

xenodium · 2022-04-14 01:08

https://xenodium.com/emacs-viewing-webp-images/

[deleted] · 2022-04-14 01:11

That solution did not work for me. :/

7890yuiop · 2022-04-14 01:27

You should take a look at the relevant commits to master, and see whether they are applicable to 28.

[deleted] · 2022-04-14 01:39

[deleted]

[deleted] · 2022-04-14 02:10

Are you referring to this: [https://mail.gnu.org/archive/html/emacs-diffs/2022-04/msg00238.html](https://mail.gnu.org/archive/html/emacs-diffs/2022-04/msg00238.html) I cannot apply this patch because I have not installed Emacs from source but used the executable provided here: https://www.gnu.org/software/emacs/download.html

xenodium · 2022-04-14 02:14

Do you have error messages? Anything in *Messages* buffer? Do you have imagemagick installed and working? Try it from the command line first.

[deleted] · 2022-04-14 02:31

The error is "Unknown image type." The image file appears like this as text. I have installed ImageMagick and added it to my path.

7890yuiop · 2022-04-14 02:52

I don't know (I'm not familiar with the feature; I'm only going by your statement that it's been implemented in the development version); but if that C code change *is* what's needed, then you cannot use this in Emacs 28 without (at minimum) compiling it from source. (Are you using MS-Windows? The commit message is "Fix WebP image support on MS-Windows". Although it does suggest that C code changes are going to be involved regardless, so you're probably out of luck if you're not intending to compile Emacs.)

[deleted] · 2022-04-14 03:01

Thank you. I will compile tomorrow.

xenodium · 2022-04-14 03:35

Maybe verify if tool is found from Emacs. Can try opening eshell and running mogrify or convert.

[deleted] · 2022-04-14 05:38

>mogrify I have done so. Both tools are available.

xenodium · 2022-04-14 05:43

What’s the elisp snippet you’re using?

[deleted] · 2022-04-14 05:44

I'm not sure I follow?

xenodium · 2022-04-14 06:04

What’s all the elisp you’re using to set it up?

Soupeeee · 2022-04-14 19:49

Unless you want to compile from scratch, I don't think you will be able to. If you are on Windows 11, just use WSL to compile the master branch, then use its ability to run graphical Linux programs.