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Re: [whatwg] Adding features needed for WebGL to ImageBitmap

From: Ian Hickson <ian@hixie.ch>
Date: Thu, 11 Jul 2013 00:07:48 +0000 (UTC)
To: Kenneth Russell <kbr@google.com>
Message-ID: <alpine.DEB.2.00.1307102354210.22191@ps20323.dreamhostps.com>
Cc: WHATWG <whatwg@whatwg.org>, "Tab Atkins Jr." <jackalmage@gmail.com>, Rik Cabanier <cabanier@gmail.com>
On Wed, 10 Jul 2013, Kenneth Russell wrote:
> ImageBitmap can cleanly address all of the desired use cases simply by 
> adding an optional dictionary of options.

I don't think that's true. The options only make sense for WebGL -- 
flipping which pixel is the first pixel, for example, doesn't do anything 
to 2D canvas, which works at a higher level.

(The other two options don't make much sense to me even for GL. If you 
don't want a color space, don't set one. If you don't want an alpha 
channel, don't set one. You control the image, after all.)

> I suspect that in the future some options will be desired even for the 
> 2D canvas use case, and having the dictionary already specified will 
> make that easier. There is no need to invent a new primitive and means 
> of loading it.

If options make sense for 2D canvas, then having ImageBitmap options would 
make sense, sure.

Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
Received on Thursday, 11 July 2013 00:08:12 UTC

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