diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/OT/Layout/GSUB/ReverseChainSingleSubstFormat1.hh')
-rw-r--r-- | src/3rdparty/harfbuzz-ng/src/OT/Layout/GSUB/ReverseChainSingleSubstFormat1.hh | 49 |
1 files changed, 33 insertions, 16 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/OT/Layout/GSUB/ReverseChainSingleSubstFormat1.hh b/src/3rdparty/harfbuzz-ng/src/OT/Layout/GSUB/ReverseChainSingleSubstFormat1.hh index 7a79a9df25..ec374f2f02 100644 --- a/src/3rdparty/harfbuzz-ng/src/OT/Layout/GSUB/ReverseChainSingleSubstFormat1.hh +++ b/src/3rdparty/harfbuzz-ng/src/OT/Layout/GSUB/ReverseChainSingleSubstFormat1.hh @@ -5,7 +5,7 @@ namespace OT { namespace Layout { -namespace GSUB { +namespace GSUB_impl { struct ReverseChainSingleSubstFormat1 { @@ -33,10 +33,12 @@ struct ReverseChainSingleSubstFormat1 TRACE_SANITIZE (this); if (!(coverage.sanitize (c, this) && backtrack.sanitize (c, this))) return_trace (false); - const Array16OfOffset16To<Coverage> &lookahead = StructAfter<Array16OfOffset16To<Coverage>> (backtrack); + hb_barrier (); + const auto &lookahead = StructAfter<decltype (lookaheadX)> (backtrack); if (!lookahead.sanitize (c, this)) return_trace (false); - const Array16Of<HBGlyphID16> &substitute = StructAfter<Array16Of<HBGlyphID16>> (lookahead); + hb_barrier (); + const auto &substitute = StructAfter<decltype (substituteX)> (lookahead); return_trace (substitute.sanitize (c)); } @@ -45,7 +47,7 @@ struct ReverseChainSingleSubstFormat1 if (!(this+coverage).intersects (glyphs)) return false; - const Array16OfOffset16To<Coverage> &lookahead = StructAfter<Array16OfOffset16To<Coverage>> (backtrack); + const auto &lookahead = StructAfter<decltype (lookaheadX)> (backtrack); unsigned int count; @@ -69,8 +71,8 @@ struct ReverseChainSingleSubstFormat1 { if (!intersects (c->glyphs)) return; - const Array16OfOffset16To<Coverage> &lookahead = StructAfter<Array16OfOffset16To<Coverage>> (backtrack); - const Array16Of<HBGlyphID16> &substitute = StructAfter<Array16Of<HBGlyphID16>> (lookahead); + const auto &lookahead = StructAfter<decltype (lookaheadX)> (backtrack); + const auto &substitute = StructAfter<decltype (substituteX)> (lookahead); + hb_zip (this+coverage, substitute) | hb_filter (c->parent_active_glyphs (), hb_first) @@ -91,12 +93,12 @@ struct ReverseChainSingleSubstFormat1 for (unsigned int i = 0; i < count; i++) if (unlikely (!(this+backtrack[i]).collect_coverage (c->before))) return; - const Array16OfOffset16To<Coverage> &lookahead = StructAfter<Array16OfOffset16To<Coverage>> (backtrack); + const auto &lookahead = StructAfter<decltype (lookaheadX)> (backtrack); count = lookahead.len; for (unsigned int i = 0; i < count; i++) if (unlikely (!(this+lookahead[i]).collect_coverage (c->after))) return; - const Array16Of<HBGlyphID16> &substitute = StructAfter<Array16Of<HBGlyphID16>> (lookahead); + const auto &substitute = StructAfter<decltype (substituteX)> (lookahead); count = substitute.len; c->output->add_array (substitute.arrayZ, substitute.len); } @@ -109,14 +111,14 @@ struct ReverseChainSingleSubstFormat1 bool apply (hb_ot_apply_context_t *c) const { TRACE_APPLY (this); - if (unlikely (c->nesting_level_left != HB_MAX_NESTING_LEVEL)) - return_trace (false); /* No chaining to this type */ - unsigned int index = (this+coverage).get_coverage (c->buffer->cur ().codepoint); if (likely (index == NOT_COVERED)) return_trace (false); - const Array16OfOffset16To<Coverage> &lookahead = StructAfter<Array16OfOffset16To<Coverage>> (backtrack); - const Array16Of<HBGlyphID16> &substitute = StructAfter<Array16Of<HBGlyphID16>> (lookahead); + if (unlikely (c->nesting_level_left != HB_MAX_NESTING_LEVEL)) + return_trace (false); /* No chaining to this type */ + + const auto &lookahead = StructAfter<decltype (lookaheadX)> (backtrack); + const auto &substitute = StructAfter<decltype (substituteX)> (lookahead); if (unlikely (index >= substitute.len)) return_trace (false); @@ -131,7 +133,23 @@ struct ReverseChainSingleSubstFormat1 c->buffer->idx + 1, &end_index)) { c->buffer->unsafe_to_break_from_outbuffer (start_index, end_index); + + if (HB_BUFFER_MESSAGE_MORE && c->buffer->messaging ()) + { + c->buffer->message (c->font, + "replacing glyph at %u (reverse chaining substitution)", + c->buffer->idx); + } + c->replace_glyph_inplace (substitute[index]); + + if (HB_BUFFER_MESSAGE_MORE && c->buffer->messaging ()) + { + c->buffer->message (c->font, + "replaced glyph at %u (reverse chaining substitution)", + c->buffer->idx); + } + /* Note: We DON'T decrease buffer->idx. The main loop does it * for us. This is useful for preventing surprises if someone * calls us through a Context lookup. */ @@ -175,7 +193,6 @@ struct ReverseChainSingleSubstFormat1 TRACE_SERIALIZE (this); auto *out = c->serializer->start_embed (this); - if (unlikely (!c->serializer->check_success (out))) return_trace (false); if (unlikely (!c->serializer->embed (this->format))) return_trace (false); if (unlikely (!c->serializer->embed (this->coverage))) return_trace (false); @@ -206,8 +223,8 @@ struct ReverseChainSingleSubstFormat1 const hb_set_t &glyphset = *c->plan->glyphset_gsub (); const hb_map_t &glyph_map = *c->plan->glyph_map; - const Array16OfOffset16To<Coverage> &lookahead = StructAfter<Array16OfOffset16To<Coverage>> (backtrack); - const Array16Of<HBGlyphID16> &substitute = StructAfter<Array16Of<HBGlyphID16>> (lookahead); + const auto &lookahead = StructAfter<decltype (lookaheadX)> (backtrack); + const auto &substitute = StructAfter<decltype (substituteX)> (lookahead); auto it = + hb_zip (this+coverage, substitute) |