diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-aat-layout-common.hh')
| -rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb-aat-layout-common.hh | 60 |
1 files changed, 35 insertions, 25 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-aat-layout-common.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-aat-layout-common.hh index c26f376aa67..2ea86a2a192 100644 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-aat-layout-common.hh +++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-aat-layout-common.hh @@ -39,6 +39,7 @@ namespace AAT { using namespace OT; +#define HB_AAT_BUFFER_DIGEST_THRESHOLD 32 struct ankr; @@ -60,6 +61,7 @@ struct hb_aat_apply_context_t : const ankr *ankr_table; const OT::GDEF *gdef_table; const hb_sorted_vector_t<hb_aat_map_t::range_flags_t> *range_flags = nullptr; + hb_set_digest_t buffer_digest = hb_set_digest_t::full (); hb_set_digest_t machine_glyph_set = hb_set_digest_t::full (); hb_set_digest_t left_set = hb_set_digest_t::full (); hb_set_digest_t right_set = hb_set_digest_t::full (); @@ -466,11 +468,11 @@ struct Lookup const T* get_value (hb_codepoint_t glyph_id, unsigned int num_glyphs) const { switch (u.format) { - case 0: return u.format0.get_value (glyph_id, num_glyphs); - case 2: return u.format2.get_value (glyph_id); - case 4: return u.format4.get_value (glyph_id); - case 6: return u.format6.get_value (glyph_id); - case 8: return u.format8.get_value (glyph_id); + case 0: hb_barrier (); return u.format0.get_value (glyph_id, num_glyphs); + case 2: hb_barrier (); return u.format2.get_value (glyph_id); + case 4: hb_barrier (); return u.format4.get_value (glyph_id); + case 6: hb_barrier (); return u.format6.get_value (glyph_id); + case 8: hb_barrier (); return u.format8.get_value (glyph_id); default:return nullptr; } } @@ -479,7 +481,7 @@ struct Lookup { switch (u.format) { /* Format 10 cannot return a pointer. */ - case 10: return u.format10.get_value_or_null (glyph_id); + case 10: hb_barrier (); return u.format10.get_value_or_null (glyph_id); default: const T *v = get_value (glyph_id, num_glyphs); return v ? *v : Null (T); @@ -490,12 +492,12 @@ struct Lookup void collect_glyphs (set_t &glyphs, unsigned int num_glyphs) const { switch (u.format) { - case 0: u.format0.collect_glyphs (glyphs, num_glyphs); return; - case 2: u.format2.collect_glyphs (glyphs); return; - case 4: u.format4.collect_glyphs (glyphs); return; - case 6: u.format6.collect_glyphs (glyphs); return; - case 8: u.format8.collect_glyphs (glyphs); return; - case 10: u.format10.collect_glyphs (glyphs); return; + case 0: hb_barrier (); u.format0.collect_glyphs (glyphs, num_glyphs); return; + case 2: hb_barrier (); u.format2.collect_glyphs (glyphs); return; + case 4: hb_barrier (); u.format4.collect_glyphs (glyphs); return; + case 6: hb_barrier (); u.format6.collect_glyphs (glyphs); return; + case 8: hb_barrier (); u.format8.collect_glyphs (glyphs); return; + case 10: hb_barrier (); u.format10.collect_glyphs (glyphs); return; default:return; } } @@ -514,12 +516,12 @@ struct Lookup if (!u.format.sanitize (c)) return_trace (false); hb_barrier (); switch (u.format) { - case 0: return_trace (u.format0.sanitize (c)); - case 2: return_trace (u.format2.sanitize (c)); - case 4: return_trace (u.format4.sanitize (c)); - case 6: return_trace (u.format6.sanitize (c)); - case 8: return_trace (u.format8.sanitize (c)); - case 10: return_trace (u.format10.sanitize (c)); + case 0: hb_barrier (); return_trace (u.format0.sanitize (c)); + case 2: hb_barrier (); return_trace (u.format2.sanitize (c)); + case 4: hb_barrier (); return_trace (u.format4.sanitize (c)); + case 6: hb_barrier (); return_trace (u.format6.sanitize (c)); + case 8: hb_barrier (); return_trace (u.format8.sanitize (c)); + case 10: hb_barrier (); return_trace (u.format10.sanitize (c)); default:return_trace (true); } } @@ -529,11 +531,11 @@ struct Lookup if (!u.format.sanitize (c)) return_trace (false); hb_barrier (); switch (u.format) { - case 0: return_trace (u.format0.sanitize (c, base)); - case 2: return_trace (u.format2.sanitize (c, base)); - case 4: return_trace (u.format4.sanitize (c, base)); - case 6: return_trace (u.format6.sanitize (c, base)); - case 8: return_trace (u.format8.sanitize (c, base)); + case 0: hb_barrier (); return_trace (u.format0.sanitize (c, base)); + case 2: hb_barrier (); return_trace (u.format2.sanitize (c, base)); + case 4: hb_barrier (); return_trace (u.format4.sanitize (c, base)); + case 6: hb_barrier (); return_trace (u.format6.sanitize (c, base)); + case 8: hb_barrier (); return_trace (u.format8.sanitize (c, base)); case 10: return_trace (false); /* We don't support format10 here currently. */ default:return_trace (true); } @@ -927,7 +929,15 @@ struct StateTableDriver machine (machine_), num_glyphs (face_->get_num_glyphs ()) {} - template <typename context_t, typename set_t = hb_set_digest_t> + template <typename context_t> + bool is_idempotent_on_all_out_of_bounds (context_t *c, hb_aat_apply_context_t *ac) + { + const auto entry = machine.get_entry (StateTableT::STATE_START_OF_TEXT, CLASS_OUT_OF_BOUNDS); + return !c->is_actionable (ac->buffer, this, entry) && + machine.new_state (entry.newState) == StateTableT::STATE_START_OF_TEXT; + } + + template <typename context_t> void drive (context_t *c, hb_aat_apply_context_t *ac) { hb_buffer_t *buffer = ac->buffer; @@ -1005,7 +1015,7 @@ struct StateTableDriver const auto is_safe_to_break_extra = [&]() { /* 2c. */ - const auto wouldbe_entry = machine.get_entry(StateTableT::STATE_START_OF_TEXT, klass); + const auto &wouldbe_entry = machine.get_entry(StateTableT::STATE_START_OF_TEXT, klass); /* 2c'. */ if (c->is_actionable (buffer, this, wouldbe_entry)) |