diff options
Diffstat (limited to 'thirdparty/harfbuzz/src/hb-ot-glyf-table.hh')
| -rw-r--r-- | thirdparty/harfbuzz/src/hb-ot-glyf-table.hh | 73 |
1 files changed, 54 insertions, 19 deletions
diff --git a/thirdparty/harfbuzz/src/hb-ot-glyf-table.hh b/thirdparty/harfbuzz/src/hb-ot-glyf-table.hh index 6b419ea1ac..6aa34295c7 100644 --- a/thirdparty/harfbuzz/src/hb-ot-glyf-table.hh +++ b/thirdparty/harfbuzz/src/hb-ot-glyf-table.hh @@ -93,22 +93,16 @@ struct glyf template<typename Iterator, hb_requires (hb_is_source_of (Iterator, unsigned int))> static bool - _add_loca_and_head (hb_subset_plan_t * plan, Iterator padded_offsets) + _add_loca_and_head (hb_subset_plan_t * plan, Iterator padded_offsets, bool use_short_loca) { - unsigned max_offset = - + padded_offsets - | hb_reduce (hb_add, 0) - ; unsigned num_offsets = padded_offsets.len () + 1; - bool use_short_loca = max_offset < 0x1FFFF; unsigned entry_size = use_short_loca ? 2 : 4; char *loca_prime_data = (char *) hb_calloc (entry_size, num_offsets); if (unlikely (!loca_prime_data)) return false; - DEBUG_MSG (SUBSET, nullptr, "loca entry_size %d num_offsets %d " - "max_offset %d size %d", - entry_size, num_offsets, max_offset, entry_size * num_offsets); + DEBUG_MSG (SUBSET, nullptr, "loca entry_size %d num_offsets %d size %d", + entry_size, num_offsets, entry_size * num_offsets); if (use_short_loca) _write_loca (padded_offsets, 1, hb_array ((HBUINT16 *) loca_prime_data, num_offsets)); @@ -151,11 +145,12 @@ struct glyf template <typename Iterator> bool serialize (hb_serialize_context_t *c, Iterator it, + bool use_short_loca, const hb_subset_plan_t *plan) { TRACE_SERIALIZE (this); unsigned init_len = c->length (); - for (const auto &_ : it) _.serialize (c, plan); + for (const auto &_ : it) _.serialize (c, use_short_loca, plan); /* As a special case when all glyph in the font are empty, add a zero byte * to the table, so that OTS doesn’t reject it, and to make the table work @@ -183,16 +178,28 @@ struct glyf hb_vector_t<SubsetGlyph> glyphs; _populate_subset_glyphs (c->plan, &glyphs); - glyf_prime->serialize (c->serializer, hb_iter (glyphs), c->plan); - auto padded_offsets = + hb_iter (glyphs) | hb_map (&SubsetGlyph::padded_size) ; + unsigned max_offset = + padded_offsets | hb_reduce (hb_add, 0); + bool use_short_loca = max_offset < 0x1FFFF; + + + glyf_prime->serialize (c->serializer, hb_iter (glyphs), use_short_loca, c->plan); + if (!use_short_loca) { + padded_offsets = + + hb_iter (glyphs) + | hb_map (&SubsetGlyph::length) + ; + } + + if (unlikely (c->serializer->in_error ())) return_trace (false); return_trace (c->serializer->check_success (_add_loca_and_head (c->plan, - padded_offsets))); + padded_offsets, + use_short_loca))); } template <typename SubsetGlyph> @@ -792,10 +799,23 @@ struct glyf hb_array_t<contour_point_t> phantoms = points.sub_array (points.length - PHANTOM_COUNT, PHANTOM_COUNT); { for (unsigned i = 0; i < PHANTOM_COUNT; ++i) phantoms[i].init (); - int h_delta = (int) header->xMin - glyf_accelerator.hmtx->get_side_bearing (gid); - int v_orig = (int) header->yMax + glyf_accelerator.vmtx->get_side_bearing (gid); + int h_delta = (int) header->xMin - + glyf_accelerator.hmtx->get_side_bearing (gid); + int v_orig = (int) header->yMax + +#ifndef HB_NO_VERTICAL + glyf_accelerator.vmtx->get_side_bearing (gid) +#else + 0 +#endif + ; unsigned h_adv = glyf_accelerator.hmtx->get_advance (gid); - unsigned v_adv = glyf_accelerator.vmtx->get_advance (gid); + unsigned v_adv = +#ifndef HB_NO_VERTICAL + glyf_accelerator.vmtx->get_advance (gid) +#else + - font->face->get_upem () +#endif + ; phantoms[PHANTOM_LEFT].x = h_delta; phantoms[PHANTOM_RIGHT].x = h_adv + h_delta; phantoms[PHANTOM_TOP].y = v_orig; @@ -910,7 +930,9 @@ struct glyf gvar = nullptr; #endif hmtx = nullptr; +#ifndef HB_NO_VERTICAL vmtx = nullptr; +#endif face = face_; const OT::head &head = *face->table.head; if (head.indexToLocFormat > 1 || head.glyphDataFormat > 0) @@ -924,7 +946,9 @@ struct glyf gvar = face->table.gvar; #endif hmtx = face->table.hmtx; +#ifndef HB_NO_VERTICAL vmtx = face->table.vmtx; +#endif num_glyphs = hb_max (1u, loca_table.get_length () / (short_offset ? 2 : 4)) - 1; num_glyphs = hb_min (num_glyphs, face->get_num_glyphs ()); @@ -1037,7 +1061,11 @@ struct glyf success = get_points (font, gid, points_aggregator_t (font, nullptr, phantoms)); if (unlikely (!success)) - return is_vertical ? vmtx->get_advance (gid) : hmtx->get_advance (gid); + return +#ifndef HB_NO_VERTICAL + is_vertical ? vmtx->get_advance (gid) : +#endif + hmtx->get_advance (gid); float result = is_vertical ? phantoms[PHANTOM_TOP].y - phantoms[PHANTOM_BOTTOM].y @@ -1053,7 +1081,11 @@ struct glyf contour_point_t phantoms[PHANTOM_COUNT]; if (unlikely (!get_points (font, gid, points_aggregator_t (font, &extents, phantoms)))) - return is_vertical ? vmtx->get_side_bearing (gid) : hmtx->get_side_bearing (gid); + return +#ifndef HB_NO_VERTICAL + is_vertical ? vmtx->get_side_bearing (gid) : +#endif + hmtx->get_side_bearing (gid); return is_vertical ? ceilf (phantoms[PHANTOM_TOP].y) - extents.y_bearing @@ -1250,7 +1282,9 @@ struct glyf const gvar_accelerator_t *gvar; #endif const hmtx_accelerator_t *hmtx; +#ifndef HB_NO_VERTICAL const vmtx_accelerator_t *vmtx; +#endif private: bool short_offset; @@ -1269,13 +1303,14 @@ struct glyf hb_bytes_t dest_end; /* region of source_glyph to copy second */ bool serialize (hb_serialize_context_t *c, + bool use_short_loca, const hb_subset_plan_t *plan) const { TRACE_SERIALIZE (this); hb_bytes_t dest_glyph = dest_start.copy (c); dest_glyph = hb_bytes_t (&dest_glyph, dest_glyph.length + dest_end.copy (c).length); - unsigned int pad_length = padding (); + unsigned int pad_length = use_short_loca ? padding () : 0; DEBUG_MSG (SUBSET, nullptr, "serialize %d byte glyph, width %d pad %d", dest_glyph.length, dest_glyph.length + pad_length, pad_length); HBUINT8 pad; |