Comment on It's an epidemic

• dan@upvote.au ⁨3⁩ ⁨months⁩ ago

  Why does that software not support modern formats though?

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  • lemmyng@lemmy.ca ⁨3⁩ ⁨months⁩ ago

    Maybe because in those scenarios PNG offers sharper images, which is more important than compression when you have complex diagrams. Or because webp is more CPU intensive, and PNG gives better performance when rendering. Or because of CVE-2023-4863.

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    • dan@upvote.au ⁨3⁩ ⁨months⁩ ago

      PNG offers sharper images, which is more important than compression when you have complex diagrams

      WebP supports both lossy and lossless compression. Diagrams should use lossless compression so the image does not lose any quality.

      PNG gives better performance when rendering

      Images on the web usually aren’t large enough for this to make a significant difference, and it can sometimes be offset by the quicker download time.

      because of CVE-2023-4863.

      libjpeg and libpng have had a number of CVEs too though.

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      • lemmyng@lemmy.ca ⁨3⁩ ⁨months⁩ ago

        WebP supports both lossy and lossless compression.

        WebP did not always support lossless compression. It’s conceivable that the tools’ developers made the decision before that.

        Images on the web usually aren’t large enough for this to make a significant difference, and it can sometimes be offset by the quicker download time.

        That does not fit the use case of diagramming tools. They usually have comparatively few assets that are used multiple times in the same document. The larger the document, the more benefit lower CPU cost has. And I’ve seen LARGE diagrams.

        libjpeg and libpng have had a number of CVEs too though.

        Fair. I’m just speculating that it might be a contributing factor for the tools still not supporting the format.

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