Cloning ImageData

[inssein]

I can't figure out how to clone an ImageData object, short of retrieving it again from the context.

All the methods I know of require ImageData.data to be a Uint8ClampedArray with the setter exposed. Is there anything I can do right now, short of waiting for #604 to be merged?

[LinusU]

There is putImageData, or am I misunderstanding what it is you want to do?

[inssein]

@LinusU I wanted to clone ImageData, and then perform some operations.

Example: https://github.com/inssein/jsfx/blob/master/src/filter/unsharpMask.ts#L75

[LinusU]

Shouldn't that code work as is right now?

[inssein]

@LinusU works on the web, doesn't seem to properly clone in node-canvas. Also, shouldn't it be a CanvasPixelArray right now, before the PR is merged?

[inssein]

Sorry, the issue was with something else. new Uint8ClampedArray(imageData.data) seems to clone the data just fine.