Canvas.toDataURL image type performance (v29)

Revision 29 of this benchmark created on

Description

Tests toDataURL image types with a large canvas

Preparation HTML

<canvas id="canvas" width="6400" height="4800" style="width:6400px; height:4800px;">
</canvas>

Setup

c = document.getElementById("canvas");
    ctx = c.getContext("2d");
    cpa = ctx.createImageData(6400,4800);
    for (var i=0; i<6400*4800; i++){
     cpa.data[i*4+0]=Math.round(Math.random()*255);
     cpa.data[i*4+1]=Math.round(Math.random()*255);
     cpa.data[i*4+2]=Math.round(Math.random()*255);
     cpa.data[i*4+3]=255;
    }
    ctx.putImageData(cpa,0,0);

Test runner

Ready to run.

Testing in
TestOps/sec
empty parameter
data = c.toDataURL("image/bmp",false);
ready
image/png
data = c.toDataURL("image/png");
ready
image/jpeg
data = c.toDataURL("image/jpeg",100);
ready
image/webp
data = c.toDataURL("image/webp");
ready
ToDataURL()
data = c.toDataURL();
ready
getImageData
data = ctx.getImageData(0, 0, 640, 480);
ready

Revisions

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