gatsby-plugin-sharp | Support withoutEnlargement

[schwiet]

Summary

The Sharp resize() function has a useful option: withoutEnlargement that can be used to prevent source images from being enlarged beyond their original size, which helps prevent undesirable degradation in image quality. It would be nice if Gatsby Plugin Sharp exposed this option as a Shared Option.

Basic example

childImageSharp{
    fixed(
        width: 1000
        height: 600
        withoutEnlargement: true
    ){
        ...GatsbyImageSharpFixed
    }
}

childImageSharp{
    fluid(
        maxWidth: 1000
        maxHeight: 600
        withoutEnlargement: true
    ){
        ...GatsbyImageSharpFluid
    }
}

childImageSharp{
    resize(
        width: 1000
        height: 600
        withoutEnlargement: true
    ){
        ...GatsbyImageSharpResize
    }
}

Motivation

There are use cases where it is desirable to limit the resizing of an image to sizes that are <= its original size, in order to prevent loss in image quality. The withoutEnlargement option allows you to enforce this restriction. It would be great if Gatsby's Sharp plugin exposed this functionality.

[github-actions[bot]]

Hiya!

This issue has gone quiet. Spooky quiet. 👻

We get a lot of issues, so we currently close issues after 60 days of inactivity. It’s been at least 20 days since the last update here.
If we missed this issue or if you want to keep it open, please reply here.
As a friendly reminder: the best way to see this issue, or any other, fixed is to open a Pull Request. Check out gatsby.dev/contribute for more information about opening PRs, triaging issues, and contributing!

Thanks for being a part of the Gatsby community! 💪💜

[marcotisi]

Our team also need that feature, any ETA? Thanks!

[ascorbic]

This is the default behaviour in the new gatsbyImageData resolver from gatsby-plugin-image, so we're unlikely to add it to this to the legacy one.

[marcotisi]

Thank you, I'll take a look at the new resolver

[ascorbic]

It's still in beta, but should be stable next month