[HarfBuzz] Fallback vertical shaping?

[Jungshik SHIN (신정식)]

On Wed, Oct 26, 2016 at 1:29 AM, Behdad Esfahbod <behdad at behdad.org> wrote:

> I didn't know that.  Yes, I think that's in scope for HarfBuzz.
>

"Old' Android browser also did what Firefox does (using vertical
presentation forms in absence of vert feature). I thought HarfBuzz had been
doing that, but obviously I was mistaken.


>
> On Mon, Oct 24, 2016 at 4:37 PM, Khaled Hosny <khaledhosny at eglug.org>
> wrote:
>
>> Hi,
>>
>> I was looking into Firefox’s code to check how they handle vertical text
>> (to see why they get better results for the same font than my code), and
>> noticed that they try to use vertical presentation forms [1] when the
>> font lacks ‘vert’ feature [2]. I was wondering if this is something
>> HarfBuzz should be doing instead?
>>
>> Regards,
>> Khaled
>>
>> 1. https://dxr.mozilla.org/mozilla-central/source/gfx/thebes/
>> gfxHarfBuzzShaper.cpp#208-279
>> 2. https://dxr.mozilla.org/mozilla-central/source/gfx/thebes/
>> gfxHarfBuzzShaper.cpp#1438
>>
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>>
>
>
>
> --
> behdad
> http://behdad.org/
>
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