Run results for: PutImageData vs DrawImage (big canvases)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:115.0) Gecko/20100101 Goanna/6.7 Firefox/115.0 PaleMoon/33.6.1

Browser: Pale Moon (Firefox Variant) 33

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
DrawImage	314838.7 Ops/sec
DrawImage (subrectangle)	309783.4 Ops/sec
PutImageData	291.8 Ops/sec
PutImageData (subrectangle)	821.1 Ops/sec

HTML Preparation code:

<canvas id='master' width='500' height='500'></canvas>
<canvas id='pid' width='200' height='200'></canvas>
<canvas id='di' width='200' height='200'></canvas>

Script Preparation code:

var master = document.getElementById('master');
var masterctx = master.getContext('2d');
var pid = document.getElementById('pid').getContext('2d');
var di = document.getElementById('di').getContext('2d');

masterctx.fillRect(0,0,50,50);
masterctx.fillStyle = "red";
masterctx.fillRect(50,50,100,100);

Tests:

DrawImage
di.drawImage(master,0,0);
DrawImage (subrectangle)
di.drawImage(master,0,0,200,200,0,0,200,200);
PutImageData
let imgData = masterctx.getImageData(0,0,500,500); pid.putImageData(imgData,0,0);
PutImageData (subrectangle)
let imgData = masterctx.getImageData(0,0,200,200); pid.putImageData(imgData,0,0);

Run results for: PutImageData vs DrawImage (big canvases)

DrawImage

DrawImage (subrectangle)

PutImageData

PutImageData (subrectangle)