Run results for: PutImageData vs DrawImage (with getImageData removed)

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:136.0) Gecko/20100101 Firefox/136.0

Browser: Firefox 136

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

DrawImage whole master into di canvas

691K/s

PutImageData half master into pid canvas

451K/s

PutImageData whole master into pid canvas

357K/s

DrawImage half master into di canvas

244K/s

View exact numbers

Test name	Executions per second
✓ DrawImage whole master into di canvas	690,694 Ops/sec
PutImageData half master into pid canvas	451,423 Ops/sec
PutImageData whole master into pid canvas	356,884 Ops/sec
DrawImage half master into di canvas	244,297 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);

var idfull = masterctx.getImageData(0, 0, 100, 100);
var idhalf = 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(idfull,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(idhalf,25,0);

Run results for: PutImageData vs DrawImage (with getImageData removed)

GetImageData with PutImageData vs just DrawImage with getImageData removed

DrawImage whole master into di canvas

PutImageData whole master into pid canvas

DrawImage half master into di canvas

PutImageData half master into pid canvas