[HarfBuzz] [EXTERNAL] - Re: hb_shape API failing for MAC default Indic MT and Sangam MN fonts

[Vijendra Singh]

Thanks Behdad, I will try with latest HarfBuzz.

Thanks,
Vijendra

From: behdad.esfahbod at gmail.com [mailto:behdad.esfahbod at gmail.com] On Behalf Of Behdad Esfahbod
Sent: Thursday, October 11, 2018 7:14 PM
To: Muthu Nedumaran
Cc: harfbuzz at lists.freedesktop.org; Vijendra Singh
Subject: [EXTERNAL] - Re: [HarfBuzz] hb_shape API failing for MAC default Indic MT and Sangam MN fonts

Or try with HarfBuzz master, as I just finished implementing morx/kerx last night. ;)

On Thu, Oct 11, 2018 at 7:14 AM, Muthu Nedumaran <fontwork at murasu.com<mailto:fontwork at murasu.com>> wrote:
The MN fonts prior to macOS Mojave do not include OpenType tables.  They only had AAT.  Try it on Mojave.

~ MUTHU


On 11Oct, 2018, at 6:09 PM, Vijendra Singh <visingh at quark.com<mailto:visingh at quark.com>> wrote:

Hi All,

I am using Harfbuzz 1.7.6 for Indic languages in my application but failed to get correct result from hb_shape API for all MAC default Indic MT and MN fonts like- Devanagari MT and Devanagari Sangam MN fonts.

e.g- Input buffer is-
   प+त+्+र+क+ा+र   द+ि+स+ं+ब+र   स+े  म+य+ा+ं+म+ा+र

Resulting output is-
<image001.png>

whereas it should be like-
     पत्रकार दिसंबर से मयांमार

It seems that issue is in glyph substitution and glyph positioning.
Similar issue is also in Chrome if we render the above text with these fonts but it is rendering fine in application like- MAC TextEdit and Safari with these fonts.

Kindly suggest whether the issue is in hb_shape API or in the fonts or I have to do something at my end to get desire result.

Thanks,
Vijendra Singh

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--
behdad
http://behdad.org/
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