Run results for: Get and Put image data on a canvas

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:72.0) Gecko/20100101 Firefox/72.0

Browser: Firefox 72

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
get and set	167.4 Ops/sec
get, paint, and set	137.3 Ops/sec

HTML Preparation code:

<canvas id='drawcan' width='512' height='512'></canvas>

Script Preparation code:

var drawCon = document.getElementById('drawcan').getContext('2d');

Tests:

get and set
var imageData = drawCon.getImageData(0,0,512,512); drawCon.putImageData(imageData,0,0);
get, paint, and set
var imageData = drawCon.getImageData(0,0,512,512); for (var i = 0; i < 200; i++) { for (var j = 0; j < 200; j++) { imageData[i*512+j] = 0xff00ff; } } drawCon.putImageData(imageData,0,0);