Run results for: PutImageData vs DrawImage v2

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36 OPR/87.0.0.0

Browser: Opera 87

Operating system: Android

Device Platform: Desktop

Date tested: one year ago

DrawImage whole master into di canvas

72K/s

DrawImage half master into di canvas

66K/s

PutImageData whole master into pid canvas

10K/s

PutImageData half master into pid canvas

9K/s

View exact numbers

Test name	Executions per second
✓ DrawImage whole master into di canvas	71,621 Ops/sec
DrawImage half master into di canvas	65,645 Ops/sec
PutImageData whole master into pid canvas	9,928 Ops/sec
PutImageData half master into pid canvas	8,833 Ops/sec

HTML Preparation code:

<canvas id='master' width='100' height='100'></canvas>
<canvas id='pid' width='100' height='100'></canvas>
<canvas id='di' width='100' height='100'></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);

let imgData1 = masterctx.getImageData(0,0,100,100);
let imgData2 = masterctx.getImageData(25,0,75,100);

Tests:

DrawImage whole master into di canvas
di.drawImage(master,0,0);
PutImageData whole master into pid canvas
pid.putImageData(imgData1,0,0);
DrawImage half master into di canvas
di.drawImage(master,25,0,50,100,25,0,50,100);
PutImageData half master into pid canvas
pid.putImageData(imgData2,25,0);

Run results for: PutImageData vs DrawImage v2

GetImageData with PutImageData vs just DrawImage

DrawImage whole master into di canvas

PutImageData whole master into pid canvas

DrawImage half master into di canvas

PutImageData half master into pid canvas