diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/OT/Layout/Common/Coverage.hh')
| -rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/OT/Layout/Common/Coverage.hh | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/OT/Layout/Common/Coverage.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/OT/Layout/Common/Coverage.hh index d35654e2457..9ca88f788a9 100644 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/OT/Layout/Common/Coverage.hh +++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/OT/Layout/Common/Coverage.hh @@ -113,22 +113,33 @@ struct Coverage TRACE_SERIALIZE (this); if (unlikely (!c->extend_min (this))) return_trace (false); - unsigned count = 0; + unsigned count = hb_len (glyphs); unsigned num_ranges = 0; hb_codepoint_t last = (hb_codepoint_t) -2; + hb_codepoint_t max = 0; + bool unsorted = false; for (auto g: glyphs) { + if (last != (hb_codepoint_t) -2 && g < last) + unsorted = true; if (last + 1 != g) - num_ranges++; + num_ranges++; last = g; - count++; + if (g > max) max = g; } - u.format = count <= num_ranges * 3 ? 1 : 2; + u.format = !unsorted && count <= num_ranges * 3 ? 1 : 2; #ifndef HB_NO_BEYOND_64K - if (count && last > 0xFFFFu) + if (max > 0xFFFFu) u.format += 2; + if (unlikely (max > 0xFFFFFFu)) +#else + if (unlikely (max > 0xFFFFu)) #endif + { + c->check_success (false, HB_SERIALIZE_ERROR_INT_OVERFLOW); + return_trace (false); + } switch (u.format) { @@ -148,8 +159,8 @@ struct Coverage auto it = + iter () | hb_take (c->plan->source->get_num_glyphs ()) - | hb_filter (c->plan->glyph_map_gsub) | hb_map_retains_sorting (c->plan->glyph_map_gsub) + | hb_filter ([] (hb_codepoint_t glyph) { return glyph != HB_MAP_VALUE_INVALID; }) ; // Cache the iterator result as it will be iterated multiple times |