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Re: [whatwg] Enabling LCD Text and antialiasing in canvas

From: Robert O'Callahan <robert@ocallahan.org>
Date: Mon, 18 Mar 2013 09:40:51 +1300
Message-ID: <CAOp6jLZvB-hgvgXPrL6guNRGz8h237U6K9pfrCHJbWYgQZsTwA@mail.gmail.com>
To: Gregg Tavares <gman@google.com>
Cc: WHATWG <whatwg@lists.whatwg.org>
On Sat, Mar 16, 2013 at 5:52 PM, Gregg Tavares <gman@google.com> wrote:

> Let me ask again in a different way ;-)  Specifically about LCD style
> antialiasing.
> What about a context attribute "antialiasRenderingQualityHint" for now with
> 2 settings "default" and "displayDependent"
>    context.antialiasRenderingQualityHint = "displayDependent"

How would this interact with canvas opacity? E.g. if the author uses
displayDependent and then draws text over transparent pixels in the canvas,
what is the UA supposed to do?

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lbh zhfg or lbhe freinag, naq jubrire jnagf gb or svefg zhfg or lbhe fynir
— whfg nf gur Fba bs Zna qvq abg pbzr gb or freirq, ohg gb freir, naq gb
tvir uvf yvsr nf n enafbz sbe znal.” [Znggurj 20:25-28]
Received on Sunday, 17 March 2013 20:41:17 UTC

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