Run results for: Untransform vs save canvas

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Save	2399.9 Ops/sec
Undo	729.3 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

let ctx = (typeof OffscreenCanvas === 'function' ? new OffscreenCanvas(150, 300) : document.createElement('canvas'))
    .getContext('2d')
let translate = 10
let scale = 30
let rotation = 1/3
function doStuff() {
   // Change some stuff...
    ctx.translate(translate, translate)
    ctx.scale(scale, scale)
    ctx.rotate(rotation)
}

Tests:

Save
ctx.save() doStuff() ctx.arc(0,0,30,0,6) ctx.restore()
Undo
doStuff() ctx.arc(0,0,30,0,6) ctx.rotate(-rotation) ctx.scale(1/scale,1/scale) ctx.translate(-translate,-translate)

Run results for: Untransform vs save canvas

Save

Undo