182424 2018-02-02 02:03:16 -0800 Complete ImageBitmap implementation 2023-10-30 05:38:41 -0700 1 1 1 Unclassified WebKit Canvas WebKit Nightly Build Unspecified Unspecified RESOLVED CONFIGURATION CHANGED P2 Normal --- 149990 182335 182388 183131 183247 183438 183439 183440 184449 211484 227140 237082 1 Ms2ger webkit-unassigned ashley daytonlowell dcasorran dino ik kkinnunen oconnorct1 ranbuch tomac oldest_to_newest 1395783 0 Ms2ger 2018-02-02 02:03:16 -0800 At the very least: * Cannot create ImageBitmap with a negative width or height -> should be a minor fix * createImageBitmap with HTMLVideoElement is not implemented -> bug 182388 * createImageBitmap with OffscreenCanvas is not implemented -> should be a minor fix; OffscreenCanvas::transferToImageBitmap() does something similar * createImageBitmap with SVGImageElement is not implemented * createImageBitmap with ImageData is not implemented -> needs to integrate mime sniffing code somehow * createImageBitmap with Blob is not implemented -> needs to integrate mime sniffing code somehow 1408090 1 daytonlowell 2018-03-21 10:52:37 -0700 spec: https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#dom-createimagebitmap 1776643 2 ik 2021-07-13 09:22:19 -0700 +1 1827744 3 ashley 2022-01-03 08:26:08 -0800 Is the "premultiplyAlpha" option supported? It looks like WebGL gets unpremultiplied data when specifying that option, it's hard to find up-to-date documentation, and it's difficult to feature detect the supported ImageBitmapOptions. 1850990 4 oconnorct1 2022-03-14 13:31:30 -0700 The image is still getting mutated a little when createImageBitmap is used in Safari. I store data in an RGBA encoded image, so any changes causes errors. It seems like the default setting is not entirely "premultiply", nor is it "none". For now, if browser detects it's safari, I have to use a polyfill to avoid image manipulation: if (!('createImageBitmap' in window) || isSafari) { window.createImageBitmap = async function (blob) { return new Promise((resolve, reject) => { const img = document.createElement('img') img.addEventListener('load', function () { resolve(this) }) img.src = URL.createObjectURL(blob) img.deleteURL = function () { URL.revokeObjectURL(this.src) } }) } } 1958565 5 ranbuch 2023-05-28 22:43:42 -0700 +1 1987929 6 kkinnunen 2023-10-27 00:45:23 -0700 Thank you for the reports. ashley@scirra.com: would you have a reproduction testcase for your problem? oconnorct1@gmail.com: would you have a reproduction for your problem? 1987957 7 ashley 2023-10-27 04:34:54 -0700 It's been so long it's difficult to remember what the original situation was. But I think I filed issue 237082 in the end, which was fixed eventually. 1987958 8 kkinnunen 2023-10-27 04:42:30 -0700 Thank you, seems probable. 1988459 9 oconnorct1 2023-10-30 04:56:17 -0700 Sorry for the delay. I checked ticket 237082 with the example and it was identical to my problem. Seems it is resolved now. Thanks for your effort! 1988469 10 kkinnunen 2023-10-30 05:38:41 -0700 Seems fixed in the bugs listed in depends on section.