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[instancer] update hhea vertical metrics with OS/2 ones

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Qunxin Liu 2023-11-15 11:38:41 -08:00 • committed by Behdad Esfahbod
parent 6a3ca37373
commit f1ac36ba7f
5 changed files with 36 additions and 1 deletions
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23
src/hb-ot-hmtx-table.hh
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@ -145,6 +145,29 @@ struct hmtxvmtx
table->minTrailingBearing = min_rsb;
table->maxExtent = max_extent;
}
if (T::is_horizontal)
{
const auto &OS2 = *c->plan->source->table.OS2;
if (OS2.has_data () &&
table->ascender == OS2.sTypoAscender &&
table->descender == OS2.sTypoDescender &&
table->lineGap == OS2.sTypoLineGap)
{
table->ascender = static_cast<int> (roundf (OS2.sTypoAscender +
MVAR.get_var (HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER,
c->plan->normalized_coords.arrayZ,
c->plan->normalized_coords.length)));
table->descender = static_cast<int> (roundf (OS2.sTypoDescender +
MVAR.get_var (HB_OT_METRICS_TAG_HORIZONTAL_DESCENDER,
c->plan->normalized_coords.arrayZ,
c->plan->normalized_coords.length)));
table->lineGap = static_cast<int> (roundf (OS2.sTypoLineGap +
MVAR.get_var (HB_OT_METRICS_TAG_HORIZONTAL_LINE_GAP,
c->plan->normalized_coords.arrayZ,
c->plan->normalized_coords.length)));
}
}
}
#endif

BIN
test/subset/data/expected/sync_vmetrics/playwrite_mm.subset.default.retain-all-codepoint.SPED=25,YEXT=520,wght=100-400,slnt=18.ttf Normal file
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test/subset/data/fonts/playwrite_mm.subset.ttf Normal file
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11
test/subset/data/tests/sync_vmetrics.tests Normal file
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@ -0,0 +1,11 @@
FONTS:
playwrite_mm.subset.ttf
PROFILES:
default.txt
SUBSETS:
*
INSTANCES:
SPED=25,YEXT=520,wght=100:400,slnt=18

3
test/subset/meson.build
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@ -79,7 +79,8 @@ if get_option('experimental_api')
'gdef_partial_instance',
'value_format_partial_instance',
'feature_variation_instance_collect_lookups',
'iftb_requirements'
'iftb_requirements',
'sync_vmetrics',
]
endif