Run results for: drawImage() scaling up & down big performance

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0

Browser: Firefox 109

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Scaling from a small canvas area to a small canvas area (no scaling)	28.1 Ops/sec
Scaling from a small canvas area to a smaller canvas area	29.3 Ops/sec
Scaling from a small canvas area to a large canvas area	27.2 Ops/sec

Script Preparation code:

$sourceWidth = 2000;
$sourceHeight = 2000;
$sourceCanvas = document.createElement("canvas");
$sourceCanvas.width = $sourceWidth;
$sourceCanvas.height = $sourceHeight;
$sourceContext = $sourceCanvas.getContext("2d");
$sourceContext.fillStyle = "rgba(0,100,200,1)";
$sourceContext.fillRect(0, 0, $sourceWidth, $sourceHeight);

$destCanvas = document.createElement("canvas");
$destCanvas.width = 3000;
$destCanvas.height = 3000;
$destContext = $destCanvas.getContext("2d");

Tests:

Scaling from a small canvas area to a small canvas area (no scaling)
$destContext.drawImage($sourceCanvas, 0, 0, $sourceWidth, $sourceHeight, 0, 0, $sourceWidth, $sourceHeight); // Force the drawImage call to be evaluated within this benchmark code: $destContext.getImageData(0, 0, 1, 1);
Scaling from a small canvas area to a smaller canvas area
$destContext.drawImage($sourceCanvas, 0, 0, $sourceWidth, $sourceHeight, 0, 0, 500, 500); // Force the drawImage call to be evaluated within this benchmark code: $destContext.getImageData(0, 0, 1, 1);
Scaling from a small canvas area to a large canvas area
$destContext.drawImage($sourceCanvas, 0, 0, $sourceWidth, $sourceHeight, 0, 0, 3000, 3000); // Force the drawImage call to be evaluated within this benchmark code: $destContext.getImageData(0, 0, 1, 1);

Run results for: drawImage() scaling up & down big performance

Scaling from a small canvas area to a small canvas area (no scaling)

Scaling from a small canvas area to a smaller canvas area

Scaling from a small canvas area to a large canvas area