[whatwg] createImageData -> new ImageData() ?

Ian Hickson ian at hixie.ch
Sun Feb 10 15:25:51 PST 2008


On Sun, 10 Feb 2008, Anne van Kesteren wrote:
> On Sun, 10 Feb 2008 10:21:34 +0100, Ian Hickson <ian at hixie.ch> wrote:
> > On Sun, 3 Feb 2008, Anne van Kesteren wrote:
> > > Why not give the object a constructor? I think that's cleaner. Also,
> > > Opera already supports that :-)
> > 
> > The relationship between the height and width arguments and the height and
> > width of the ImageData structure returned can vary on a per-canvas basis.
> 
> That would mean that passing ImageData around between two <canvas> 
> elements doesn't always work as expected. I think that's highly 
> undesirable. Is there any implementation where we know this will the 
> case?

Not today, but why preclude it? Implementations could get higher quality 
renderings on canvases that get resized dynamically, by using a bigger 
backing store. What's wrong with what we have now?

-- 
Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'



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