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| author | Behdad Esfahbod <behdad@behdad.org> | 2018-09-07 10:24:22 -0400 |
|---|---|---|
| committer | Behdad Esfahbod <behdad@behdad.org> | 2018-09-07 10:24:22 -0400 |
| commit | 5f17dbc3025093308d2191a4abd2eec24db35c0e (patch) | |
| tree | a841ceefe549bb1d263bf5e6d28b8c506bfe01e8 /src/hb-subset.cc | |
| parent | 21bf147054f6b5bd1c430c0e02a8c4058ed229a1 (diff) | |
| download | harfbuzz-5f17dbc3025093308d2191a4abd2eec24db35c0e.tar.gz | |
[subset] Fix div-by-zero
Diffstat (limited to 'src/hb-subset.cc')
| -rw-r--r-- | src/hb-subset.cc | 3 |
1 files changed, 3 insertions, 0 deletions
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)); } |