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[aat] Fallback to old style "Letter Case" small caps

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Fixes https://github.com/harfbuzz/harfbuzz/issues/1342
This commit is contained in:
Behdad Esfahbod 2018-10-31 18:51:45 -07:00
parent f928931948
commit 40b19fd469
1 changed files with 8 additions and 0 deletions
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8
src/hb-aat-layout-morx-table.hh
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@ -955,12 +955,20 @@ struct Chain
const Feature &feature = featureZ[i]; const Feature &feature = featureZ[i];
uint16_t type = feature.featureType; uint16_t type = feature.featureType;
uint16_t setting = feature.featureSetting; uint16_t setting = feature.featureSetting;
retry:
const hb_aat_map_builder_t::feature_info_t *info = map->features.bsearch (type); const hb_aat_map_builder_t::feature_info_t *info = map->features.bsearch (type);
if (info && info->setting == setting) if (info && info->setting == setting)
{ {
flags &= feature.disableFlags; flags &= feature.disableFlags;
flags |= feature.enableFlags; flags |= feature.enableFlags;
} }
else if (type == 3/*kLetterCaseType*/ && setting == 3/*kSmallCapsSelector*/)
{
/* Deprecated. https://github.com/harfbuzz/harfbuzz/issues/1342 */
type = 37/*kLowerCaseType*/;
setting = 1/*kLowerCaseSmallCapsSelector*/;
goto retry;
}
} }
} }
return flags; return flags;