Re: [whatwg] High-density canvases

On Thu, Jun 19, 2014 at 3:30 AM, Justin Novosad <junov@google.com> wrote:

> I am currently trying an experimental approach where canvases that are
> drawn to, but never read from (no toDataURL or getImageData calls) have
> their contents stored as a command buffer, rather than a pixel buffer.
>

There must be a cliff with that approach, where if you issue a sufficient
number of drawing commands without clearing the canvas you have to
rasterize, otherwise memory usage will grow without bound. That seems like
a problem for authors. I think it's reasonably easy for authors to
understand and control canvas memory usage at the moment, and I'd like to
not make it worse.

I can see that the command buffer approach would be useful for many
applications though.

Rob
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Received on Wednesday, 18 June 2014 23:53:22 UTC