[whatwg] I believe source rectangles for HTML5 Canvas drawImage are specified incorrectly

[Rik Cabanier]

On Wed, Dec 12, 2012 at 10:24 AM, Justin Novosad <junov at chromium.org> wrote:

>
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> On Wed, Dec 12, 2012 at 12:39 PM, Rik Cabanier <cabanier at gmail.com> wrote:
>
>>
>> What would be the next step? Should we define a new version of drawImage
>> with the extra parameter?
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>
> That is one option, but I think a context attribute (like
> imageSmoothingEnabled) is also worth considering.
> Perhaps image smoothing could be an enum rather than boolean with an
> additional mode that prevents color bleeding.
>

It seems a bit too expensive to add a variable to the graphics context that
is checked for just this call.
Maybe just a new drawImage call (like drawNonSmoothedImage?) is all that is
needed.


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>> If so, we probably want the description of the existing drawImage call to
>> change so it leaves the resampling issue undefined unless WebKit is OK with
>> changing their current behavior.
>>
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> IMHO: Undifined behavior is a spec bug. If we have a problem with the
> spec, we fix the spec, we don't just each do our own thing.
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>