Run results for: PID vs DrawImage

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

di half

307K/s

di full

305K/s

pid full

301K/s

pid half

279K/s

View exact numbers

Test name	Executions per second
✓ di half	307,120 Ops/sec
di full	304,539 Ops/sec
pid full	300,560 Ops/sec
pid half	279,073 Ops/sec

HTML Preparation code:

<canvas id='master' width='100' height='100'></canvas>
<canvas id='clone' width='100' height='100'></canvas>

Script Preparation code:

var master = document.getElementById('master');
var masterctx = master.getContext('2d');
var clone = document.getElementById('master').getContext('2d');

masterctx.fillRect(0,0,50,50);
masterctx.fillStyle = "red";
masterctx.fillRect(50,50,100,100);
var img = masterctx.getImageData(0,0,100,100);

var half = masterctx.getImageData(25,0,50,100);

Tests:

di full
clone.drawImage(master,0,0); clone.clearRect(0,0,100,100);
di half
clone.drawImage(master,25,0,50,100,25,0,50,100); clone.clearRect(0,0,100,100);
pid full
clone.putImageData(img,0,0); clone.clearRect(0,0,100,100);
pid half
clone.putImageData(half,25,0); clone.clearRect(0,0,100,100);