[HarfBuzz] "High-DPI, Subpixel Text Positioning, Hinting"

[Jiang Jiang]

Hi Behdad,

On Thu, Nov 22, 2012 at 11:13 PM, Behdad Esfahbod <behdad at behdad.org> wrote:
> [Excuse my cross-lists posting]
>
>
> A while back I wrote a document about the interactions of high-density
> displays and font rendering options.  I just went ahead and made it public,
> so, enjoy!
>
>   http://goo.gl/yf3M7

A very good read indeed. I've noticed that on my rMBP certain fonts
like Arial have terrible spacing in Safari while some other fonts
don't. It is quite noticeable to trained eyes even when reading your
article (presented by Google Docs in Arial). So looks like that is a
caveat from the hybrid method used by Apple.

Opera 12 on Mac seemed to have the same problem on my rMBP.

Out of curiosity, which method does Chrome choose to handle high
resolution displays like rMBP? Is --enable-text-subpixel-positioning
still in use?

Do you aware of any way to force using sub-pixel positioning with
Apple's WebKit port?

Jonathan, can you please comment on the case for Firefox as well? I
noticed that the latest nightlies have turn on the high DPI support.

- Jiang