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-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape.cc16
1 files changed, 14 insertions, 2 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape.cc b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape.cc
index ddd6662e845..6b38739c91b 100644
--- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape.cc
+++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape.cc
@@ -362,6 +362,18 @@ hb_ot_shape_setup_masks_fraction (hb_ot_shape_context_t *c)
hb_buffer_t *buffer = c->buffer;
+ hb_mask_t pre_mask, post_mask;
+ if (HB_DIRECTION_IS_FORWARD (buffer->props.direction))
+ {
+ pre_mask = c->plan->numr_mask | c->plan->frac_mask;
+ post_mask = c->plan->frac_mask | c->plan->dnom_mask;
+ }
+ else
+ {
+ pre_mask = c->plan->frac_mask | c->plan->dnom_mask;
+ post_mask = c->plan->numr_mask | c->plan->frac_mask;
+ }
+
/* TODO look in pre/post context text also. */
unsigned int count = buffer->len;
hb_glyph_info_t *info = buffer->info;
@@ -380,10 +392,10 @@ hb_ot_shape_setup_masks_fraction (hb_ot_shape_context_t *c)
end++;
for (unsigned int j = start; j < i; j++)
- info[j].mask |= c->plan->numr_mask | c->plan->frac_mask;
+ info[j].mask |= pre_mask;
info[i].mask |= c->plan->frac_mask;
for (unsigned int j = i + 1; j < end; j++)
- info[j].mask |= c->plan->frac_mask | c->plan->dnom_mask;
+ info[j].mask |= post_mask;
i = end - 1;
}