- From: Henri Sivonen <hsivonen@iki.fi>
- Date: Wed, 6 Jun 2012 15:36:48 +0300
- To: whatwg <whatwg@lists.whatwg.org>
On Wed, May 23, 2012 at 6:21 PM, Florian Rivoal <florianr@opera.com> wrote: > On the other hand, I think that including 600w 400h in there is misguided. I agree. > 1) simplyfy srcset to only accept the *x qualifier Is there a good reason to believe that * will be something other than a power of two? That is, could we just optimize the *x syntax away and specify that the first option is 1x, the second is 2x, the third is 4x, etc.? > I believe the only way out is through an image format that: ... > - is designed so that the browser can stop downloading half way through > the file, if it determines it got sufficiently high resolution given the > environment More to the point, the important characteristic is being able to stop downloading *quarter* way through the file and get results that are as good as if the full-size file had been down sampled with both dimensions halved and that size had been sent as the full file. (I am not aware of a bitmap format suitable for photographs that has this characteristic. I am aware that JPEG 2000 does not have this characteristic. I believe interlaced PNGs have that characteristic, but they aren't suitable for photographs, due to the lossless compression.) -- Henri Sivonen hsivonen@iki.fi http://hsivonen.iki.fi/
Received on Wednesday, 6 June 2012 12:37:20 UTC