- From: Boris Zbarsky <bzbarsky@MIT.EDU>
- Date: Thu, 03 Sep 2009 08:57:27 -0400
Philip J?genstedt wrote: > I wasn't involved then, but I can only presume that there was no > perceived benefit of high-DPI ImageData since you can get high-quality > rendering just as well with techniques that don't rely on the canvas > being higher resolution than the display device. To be clear, in this context "high-DPI" means "using the DPI of the display device, instead of the about 96dpi you get with CSS pixels". So if this were done and I have a 300-dpi screen, there would be, say, 3 imagedata pixels per CSS pixel. If you have a 200-dpi screen, then on our computer there would be 2 imagedata pixels per CSS pixel. Script would have to be able to deal with this, which is where the APIs like createImageData(imageData) come in. -Boris
Received on Thursday, 3 September 2009 05:57:27 UTC