Bug 127065 (hb_aat) - Use HarfBuzz hb_aat API to parse the AAT tables
Summary: Use HarfBuzz hb_aat API to parse the AAT tables
Status: RESOLVED INVALID
Alias: hb_aat
Product: LibreOffice
Classification: Unclassified
Component: LibreOffice (show other bugs)
Version:
(earliest affected)
unspecified
Hardware: All All
: medium normal
Assignee: Not Assigned
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Depends on:
Blocks: HarfBuzz
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Reported: 2019-08-21 04:50 UTC by Volga
Modified: 2019-08-23 16:44 UTC (History)
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Description Volga 2019-08-21 04:50:26 UTC 
Description:
Apple Advanced Typography is a smart font technology brought by Apple, it’s the processor of TrueType GX technology which also created by Apple And lots of fonts included in macOS can present complex text layout with AAT. Since HarfBuzz have been provided APIs to process the AAT tables, LibreOffice could also display the text layout and font variation with some fonts as San Fransisco, but independent of Core Text.

Steps to Reproduce:
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Actual Results:
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Expected Results:
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Reproducible: Always


User Profile Reset: No



Additional Info:
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Comment 1 ⁨خالد حسني⁩ 2019-08-21 21:02:41 UTC 
We already do.
Comment 2 Volga 2019-08-23 15:24:30 UTC 
Yes, you’re right. Confirmed in:
版本: 6.3.0.4 (x64)
Build ID: 057fc023c990d676a43019934386b85b21a9ee99
CPU 线程: 4; 操作系统: Windows 10.0; UI 渲染: 默认; VCL: win; 
区域语言: zh-CN (zh_CN); UI 语言: zh-CN
Calc: CL
And with some fonts available at http://www.mongolfont.com/en/font/index.html

Two questions are: How long does LibreOffice got this support? Is it possible to switch AAT font feature and variation?
Comment 3 Volga 2019-08-23 16:44:58 UTC 
(In reply to Volga from comment #2)
> Two questions are: How long does LibreOffice got this support? Is it
> possible to switch AAT font feature and variation?
Oh, no.