Image Decode API: img.decode()

Category: Graphics
Type: New or changed feature
Status: Enabled by default (Chrome 64)
Intent stage: None

Summary

This change allows web developers to request to decode an img element. The call to a new HTML <img> element’s decode() function returns a promise, which, when fulfilled, ensures that the image can be appended to the DOM without causing a decoding delay on the next frame.

Standards & signals

Specification: https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-decode
Firefox: No signal
Safari: Positive
Web developers: No signals
Tracking bug: http://crbug.com/705669

Docs: https://github.com/whatwg/html/issues/1920 https://github.com/whatwg/html/issues/2037

Samples: https://drive.google.com/file/d/0B5cKk7MxQ2LsUUotR3RuWUlpSXc/view https://drive.google.com/drive/folders/0B5cKk7MxQ2LsNVQzaVVoWHRnVHc

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