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bug#33282: ImageMagick delegates
From: |
Juri Linkov |
Subject: |
bug#33282: ImageMagick delegates |
Date: |
Tue, 06 Nov 2018 23:39:42 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (x86_64-pc-linux-gnu) |
> WebP is an image format that is gaining popularity,
> but currently can't be displayed by image-mode.
>
> It's supported by ImageMagick after installing
>
> sudo apt-get install webp
>
> The command `identify -list delegate` confirms that:
>
> webp => "dwebp' -pam '%i' -o '%o"
>
> It's possible to work around its missing support by adding to ~/.emacs:
>
> (add-to-list 'imagemagick-enabled-types 'WEBP)
>
> (advice-add 'imagemagick-types :around
> (lambda (orig-fun &rest args)
> (append (apply orig-fun args) '(WEBP))))
>
> (imagemagick-register-types)
>
> So the question is: should `imagemagick-types' return
> the delegate list in addition to the current list
> of non-delegate image types?
I tried GetDelegateList, but it returned some delegates on whose
calling MagickRelinquishMemory caused a crash during bootstrapping.
There is no crash when calling MagickRelinquishMemory not during
bootstrapping, and I have no idea what is wrong.