Run results for: PutImageData vs DrawImage vs fillRect

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.6668.70 Mobile Safari/537.36

Browser: Chrome Mobile 129

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

rect

345K/s

DrawImage whole master into di canvas

52K/s

DrawImage half master into di canvas

49K/s

PutImageData half master into pid canvas

12K/s

PutImageData whole master into pid canvas

10K/s

View exact numbers

Test name	Executions per second
✓ rect	344,681 Ops/sec
DrawImage whole master into di canvas	51,695 Ops/sec
DrawImage half master into di canvas	48,971 Ops/sec
PutImageData half master into pid canvas	12,372 Ops/sec
PutImageData whole master into pid canvas	10,241 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>
<canvas id='rect' 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');
var rect = document.getElementById('rect').getContext('2d');

masterctx.fillRect(0,0,50,50);
masterctx.fillStyle = "red";
masterctx.fillRect(50,50,100,100);

Tests:

DrawImage whole master into di canvas
di.drawImage(master,0,0);
PutImageData whole master into pid canvas
let imgData = masterctx.getImageData(0,0,100,100); pid.putImageData(imgData,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
let imgData = masterctx.getImageData(25,0,75,100); pid.putImageData(imgData,25,0);
rect
rect.fillRect(0,0,50,50); rect.fillStyle = "red"; rect.fillRect(50,50,100,100);