RFR: 8318364: Add an FFM-based implementation of harfbuzz OpenType layout [v4]

[Phil Race]

On Wed, 15 Nov 2023 15:52:43 GMT, Jayathirth D V <jdv at openjdk.org> wrote:

>> Phil Race has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   indentation
>
> src/java.desktop/share/classes/sun/font/HBShaper.java line 142:
> 
>> 140:     private static final MemorySegment get_contour_pt_stub;
>> 141: 
>> 142:     private static final MemorySegment store_layout_results_stub;
> 
> I see this Upcall is named `store_layout_results` in case of FFM and we call it similar function in JNI case as `storeGVData`. If we can find some common name and use it will be beneficial in future when we want to compare code between FFM and JNI implementation.

noted, but not something I intend to change here.

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PR Review Comment: https://git.openjdk.org/jdk/pull/15476#discussion_r1395138283