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Run results for: PutImageData vs DrawImage v2

GetImageData with PutImageData vs just DrawImage

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Run details:
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
Opera 87
Android
Desktop
one month ago
Test name Executions per second
DrawImage whole master into di canvas 71621.4 Ops/sec
PutImageData whole master into pid canvas 9928.4 Ops/sec
DrawImage half master into di canvas 65644.7 Ops/sec
PutImageData half master into pid canvas 8833.1 Ops/sec
HTML Preparation code:
AخA
 
1
<canvas id='master' width='100' height='100'></canvas>
2
<canvas id='pid' width='100' height='100'></canvas>
3
<canvas id='di' width='100' height='100'></canvas>
Script Preparation code:
​x
 
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);