Benchmark: Image vs ImageBitmap+OffscreenCanvas

Script Preparation code:

var img = new Image();
var imageBitmap;
var doneLoading = false;
let canvas = document.createElement('canvas');

canvas.width = 640;
canvas.height = 480;
let canvas2 = document.createElement('canvas');
let offscreen = canvas2.transferControlToOffscreen();
offscreen.width = 640;
offscreen.height = 480;

var ctx = canvas.getContext('2d');
var ctx2 = offscreen.getContext('2d');

img.addEventListener('load', function() {
  Promise.all([
    createImageBitmap(img)
  ]).then(function(images) {
  imageBitmap = images[0];
  doneLoading = true;
}, false);
});

img.src = 'https://media.discordapp.net/attachments/447410261289205781/574359442913492992/unknown.png';

Tests:

Image
if (doneLoading) ctx.drawImage(img,0,0);
ImageBitmap/Offscreen
if (doneLoading) ctx2.drawImage(imageBitmap,0,0);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Image
ImageBitmap/Offscreen

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36

Browser/OS: Chrome 110 on Linux

View result in a separate tab

Test name	Executions per second
Image	8236673.0 Ops/sec
ImageBitmap/Offscreen	8364527.0 Ops/sec

Image vs ImageBitmap+OffscreenCanvas (version: 0)

Comparing performance of: Image vs ImageBitmap/Offscreen

Created: 4 years ago by: Guest

Jump to the latest result

Image

ImageBitmap/Offscreen

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A