src/hb-subset.cc | 3 +++
1 file changed, 3 insertions(+)
New commits:
commit 5f17dbc3025093308d2191a4abd2eec24db35c0e
Author: Behdad Esfahbod <[email protected]>
Date: Fri Sep 7 10:24:22 2018 -0400
[subset] Fix div-by-zero
diff --git a/src/hb-subset.cc b/src/hb-subset.cc
index adc7c51d..2bed3586 100644
--- a/src/hb-subset.cc
+++ b/src/hb-subset.cc
@@ -51,6 +51,9 @@ _plan_estimate_subset_table_size (hb_subset_plan_t *plan,
unsigned int src_glyphs = plan->source->get_num_glyphs ();
unsigned int dst_glyphs = plan->glyphset->get_population ();
+ if (unlikely (!src_glyphs))
+ return 512 + table_len;
+
return 512 + (unsigned int) (table_len * sqrt ((double) dst_glyphs /
src_glyphs));
}
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