Run results for: MAGENTA PutImageData vs fillRect

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

rect

1.1M/s

putImageData

16K/s

View exact numbers

Test name	Executions per second
✓ rect	1,105,093 Ops/sec
putImageData	15,566 Ops/sec

HTML Preparation code:

<canvas id='pid' width='256' height='256'></canvas>
<canvas id='rect' width='256' height='256'></canvas>

Script Preparation code:

var pid = document.getElementById('pid').getContext('2d');
var rect = document.getElementById('rect').getContext('2d');

var imgData = new ImageData(256,256)
for (let i = 0; i <imgData.length; i+=4) { imgData[i] = 255; imgData[i+2] = 255; }

Tests:

putImageData
pid.putImageData(imgData,0,0);
rect
rect.fillStyle = "magenta"; rect.fillRect(0,0,256,256);

Run results for: MAGENTA PutImageData vs fillRect

GetImageData with PutImageData vs just DrawImage

putImageData

rect