drawImage whole pixels (v10)

Revision 10 of this benchmark created by skyblue on

Preparation HTML

<canvas id="screen"></canvas>
<script>
  var ctx = document.getElementById("screen").getContext("2d");
  var image = document.createElement("img");
  image.src = "http://icons.iconarchive.com/icons/ph03nyx/super-mario/48/Retro-Mushroom-1UP-2-icon.png";
</script>

Test runner

Ready to run.

Testing in
TestOps/sec
whole pixel
ctx.drawImage(image, 0, 0);
ready
sub pixel
ctx.drawImage(image, 0.5, 0.5);
ready
whole pixel2
ctx.drawImage(image, 1.1|0, 1.1|0);
ready
whole pixel3
ctx.drawImage(image, 1.6>>0, 1.6>>0);
ready
whole pixel4
ctx.drawImage(image, parseInt(1.6), parseInt(1.6));
ready

Revisions

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