MeasureThat.net

Run results for: NO GETIMAGEDATA! PutImageData vs just DrawImage

v3

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Chrome 126
Windows
Desktop
9 months ago
Test name Executions per second
DrawImage whole master into di canvas 271356.2 Ops/sec
PutImageData whole master into pid canvas 24757.6 Ops/sec
DrawImage half master into di2 canvas 293920.6 Ops/sec
PutImageData half master into pid2 canvas 24470.7 Ops/sec
HTML Preparation code:
AخA
 
1
<canvas id='master' width='100' height='100'></canvas>master<br><br>
2
<canvas id='pid' width='100' height='100'></canvas>pid1<br><br>
3
<canvas id='di' width='100' height='100'></canvas>di1<br><br>
4
<canvas id='pid2' width='100' height='100'></canvas>pid2<br><br>
5
<canvas id='di2' width='100' height='100'></canvas>di2
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');
var pid2 = document.getElementById('pid2').getContext('2d');
var di2 = document.getElementById('di2').getContext('2d');
​
masterctx.fillRect(0,0,50,50);
masterctx.fillStyle = "red";
masterctx.fillRect(50,50,100,100);
​
var imgData = masterctx.getImageData(0,0,100,100);
var imgDatas = masterctx.getImageData(25,0,50,100);
Tests:

  • DrawImage whole master into di canvas

     
    di.drawImage(master,0,0);

  • PutImageData whole master into pid canvas

     
    pid.putImageData(imgData,0,0);

  • DrawImage half master into di2 canvas

     
    di2.drawImage(master,25,0,50,100,25,0,50,100);

  • PutImageData half master into pid2 canvas

     
    pid2.putImageData(imgDatas,25,0);