kc3-lang/harfbuzz

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    Commit

  • Hash : 1f519c25
    Author : Ebrahim Byagowi
    Date : 2020-08-07T01:21:19 

    [glyf] Optimize retrieval of hmtx/vmtx/gvar

This should make glyf/gvar faster as makes it to invoke less table wrapper atomic operations and things.

$ meson build -Dexperimental_api=true --buildtype=release && ninja -Cbuild && build/perf/perf "--benchmark_filter=glyf.*- ot -"

Before:
extents/glyf - ot - SourceSerifVariable         46091 ns      46036 ns      16173
extents/glyf/vf - ot - SourceSerifVariable    4160142 ns    4154913 ns        174
extents/glyf - ot - Comfortaa                   25754 ns      25726 ns      27030
extents/glyf/vf - ot - Comfortaa              2627804 ns    2624596 ns        265
extents/glyf - ot - Roboto                      33556 ns      33540 ns      18513
draw/glyf - ot - SourceSerifVariable          2716848 ns    2715438 ns        256
draw/glyf/vf - ot - SourceSerifVariable       4602379 ns    4598907 ns        151
draw/glyf - ot - Comfortaa                    1659364 ns    1658142 ns        417
draw/glyf/vf - ot - Comfortaa                 2845100 ns    2842549 ns        246
draw/glyf - ot - Roboto                       1571509 ns    1570060 ns        442

After:
extents/glyf - ot - SourceSerifVariable         34738 ns      34713 ns      21332
extents/glyf/vf - ot - SourceSerifVariable    3700510 ns    3698104 ns        187
extents/glyf - ot - Comfortaa                   21604 ns      21595 ns      31907
extents/glyf/vf - ot - Comfortaa              2324787 ns    2323440 ns        296
extents/glyf - ot - Roboto                      31259 ns      31246 ns      21814
draw/glyf - ot - SourceSerifVariable          2689230 ns    2687589 ns        260
draw/glyf/vf - ot - SourceSerifVariable       4625135 ns    4622036 ns        131
draw/glyf - ot - Comfortaa                    1690336 ns    1689454 ns        402
draw/glyf/vf - ot - Comfortaa                 2898748 ns    2897074 ns        241
draw/glyf - ot - Roboto                       1570911 ns    1570138 ns        440

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  • Git HTTP https://git.kmx.io/kc3-lang/harfbuzz.git
    Git SSH git@git.kmx.io:kc3-lang/harfbuzz.git
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    Description

    HarfBuzz text shaping engine
    Users
    		 thodg_m kc3_lang_org thodg_w www_kmx_io thodg_l thodg
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  • README

  • This is HarfBuzz, a text shaping library.

For bug reports, mailing list, and other information please visit:

  http://harfbuzz.org/

For license information, see https://github.com/harfbuzz/harfbuzz/blob/master/COPYING

For build information, see https://github.com/harfbuzz/harfbuzz/blob/master/BUILD.md

For custom configurations, see https://github.com/harfbuzz/harfbuzz/blob/master/CONFIG.md

For test execution, see https://github.com/harfbuzz/harfbuzz/blob/master/TESTING.md

Documentation: https://harfbuzz.github.io

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