diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-subset-cff1.cc')
-rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-subset-cff1.cc | 130 |
1 files changed, 77 insertions, 53 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-subset-cff1.cc b/src/3rdparty/harfbuzz-ng/src/hb-subset-cff1.cc index b4e24122c9..1d7ed6444a 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-subset-cff1.cc +++ b/src/3rdparty/harfbuzz-ng/src/hb-subset-cff1.cc @@ -167,9 +167,10 @@ struct cff1_top_dict_op_serializer_t : cff_top_dict_op_serializer_t<cff1_top_dic * for supplement, the original byte string is copied along with the op code */ op_str_t supp_op; supp_op.op = op; - if ( unlikely (!(opstr.str.length >= opstr.last_arg_offset + 3))) + if ( unlikely (!(opstr.length >= opstr.last_arg_offset + 3))) return_trace (false); - supp_op.str = byte_str_t (&opstr.str + opstr.last_arg_offset, opstr.str.length - opstr.last_arg_offset); + supp_op.ptr = opstr.ptr + opstr.last_arg_offset; + supp_op.length = opstr.length - opstr.last_arg_offset; return_trace (UnsizedByteStr::serialize_int2 (c, mod.nameSIDs[name_dict_values_t::registry]) && UnsizedByteStr::serialize_int2 (c, mod.nameSIDs[name_dict_values_t::ordering]) && copy_opstr (c, supp_op)); @@ -233,7 +234,7 @@ struct cff1_cs_opset_flatten_t : cff1_cs_opset_t<cff1_cs_opset_flatten_t, flatte { str_encoder_t encoder (param.flatStr); for (unsigned int i = env.arg_start; i < env.argStack.get_count (); i++) - encoder.encode_num (env.eval_arg (i)); + encoder.encode_num_cs (env.eval_arg (i)); SUPER::flush_args (env, param); } @@ -247,7 +248,7 @@ struct cff1_cs_opset_flatten_t : cff1_cs_opset_t<cff1_cs_opset_flatten_t, flatte { assert (env.has_width); str_encoder_t encoder (param.flatStr); - encoder.encode_num (env.width); + encoder.encode_num_cs (env.width); } static void flush_hintmask (op_code_t op, cff1_cs_interp_env_t &env, flatten_param_t& param) @@ -270,13 +271,13 @@ struct range_list_t : hb_vector_t<code_pair_t> /* replace the first glyph ID in the "glyph" field each range with a nLeft value */ bool complete (unsigned int last_glyph) { - bool two_byte = false; - for (unsigned int i = (*this).length; i > 0; i--) + bool two_byte = false; + unsigned count = this->length; + for (unsigned int i = count; i; i--) { - code_pair_t &pair = (*this)[i - 1]; - unsigned int nLeft = last_glyph - pair.glyph - 1; - if (nLeft >= 0x100) - two_byte = true; + code_pair_t &pair = arrayZ[i - 1]; + unsigned int nLeft = last_glyph - pair.glyph - 1; + two_byte |= nLeft >= 0x100; last_glyph = pair.glyph; pair.glyph = nLeft; } @@ -334,6 +335,36 @@ struct cff1_cs_opset_subr_subset_t : cff1_cs_opset_t<cff1_cs_opset_subr_subset_t typedef cff1_cs_opset_t<cff1_cs_opset_subr_subset_t, subr_subset_param_t> SUPER; }; +struct cff1_private_dict_op_serializer_t : op_serializer_t +{ + cff1_private_dict_op_serializer_t (bool desubroutinize_, bool drop_hints_) + : desubroutinize (desubroutinize_), drop_hints (drop_hints_) {} + + bool serialize (hb_serialize_context_t *c, + const op_str_t &opstr, + objidx_t subrs_link) const + { + TRACE_SERIALIZE (this); + + if (drop_hints && dict_opset_t::is_hint_op (opstr.op)) + return_trace (true); + + if (opstr.op == OpCode_Subrs) + { + if (desubroutinize || !subrs_link) + return_trace (true); + else + return_trace (FontDict::serialize_link2_op (c, opstr.op, subrs_link)); + } + + return_trace (copy_opstr (c, opstr)); + } + + protected: + const bool desubroutinize; + const bool drop_hints; +}; + struct cff1_subr_subsetter_t : subr_subsetter_t<cff1_subr_subsetter_t, CFF1Subrs, const OT::cff1::accelerator_subset_t, cff1_cs_interp_env_t, cff1_cs_opset_subr_subset_t, OpCode_endchar> { cff1_subr_subsetter_t (const OT::cff1::accelerator_subset_t &acc_, const hb_subset_plan_t *plan_) @@ -362,43 +393,11 @@ struct cff1_subr_subsetter_t : subr_subsetter_t<cff1_subr_subsetter_t, CFF1Subrs struct cff_subset_plan { cff_subset_plan () - : info (), - orig_fdcount (0), - subset_fdcount (1), - subset_fdselect_format (0), - drop_hints (false), - desubroutinize(false) - { - topdict_mod.init (); - subset_fdselect_ranges.init (); - fdmap.init (); - subset_charstrings.init (); - subset_globalsubrs.init (); - subset_localsubrs.init (); - fontdicts_mod.init (); - subset_enc_code_ranges.init (); - subset_enc_supp_codes.init (); - subset_charset_ranges.init (); - sidmap.init (); + { for (unsigned int i = 0; i < name_dict_values_t::ValCount; i++) topDictModSIDs[i] = CFF_UNDEF_SID; } - ~cff_subset_plan () - { - topdict_mod.fini (); - subset_fdselect_ranges.fini (); - fdmap.fini (); - subset_charstrings.fini_deep (); - subset_globalsubrs.fini_deep (); - subset_localsubrs.fini_deep (); - fontdicts_mod.fini (); - subset_enc_code_ranges.fini (); - subset_enc_supp_codes.fini (); - subset_charset_ranges.fini (); - sidmap.fini (); - } - void plan_subset_encoding (const OT::cff1::accelerator_subset_t &acc, hb_subset_plan_t *plan) { const Encoding *encoding = acc.encoding; @@ -474,6 +473,18 @@ struct cff_subset_plan { return; } + hb_map_t *glyph_to_sid_map = (plan->accelerator && plan->accelerator->cff_accelerator) ? + plan->accelerator->cff_accelerator->glyph_to_sid_map : + nullptr; + bool created_map = false; + if (!glyph_to_sid_map && + ((plan->accelerator && plan->accelerator->cff_accelerator) || + plan->num_output_glyphs () > plan->source->get_num_glyphs () / 8.)) + { + created_map = true; + glyph_to_sid_map = acc.create_glyph_to_sid_map (); + } + unsigned int glyph; for (glyph = 1; glyph < plan->num_output_glyphs (); glyph++) { @@ -483,7 +494,7 @@ struct cff_subset_plan { /* Retain the SID for the old missing glyph ID */ old_glyph = glyph; } - sid = acc.glyph_to_sid (old_glyph); + sid = glyph_to_sid_map ? glyph_to_sid_map->get (old_glyph) : acc.glyph_to_sid (old_glyph); if (!acc.is_CID ()) sid = sidmap.add (sid); @@ -496,6 +507,13 @@ struct cff_subset_plan { last_sid = sid; } + if (created_map) + { + if (!(plan->accelerator && plan->accelerator->cff_accelerator) || + !plan->accelerator->cff_accelerator->glyph_to_sid_map.cmpexch (nullptr, glyph_to_sid_map)) + hb_map_destroy (glyph_to_sid_map); + } + bool two_byte = subset_charset_ranges.complete (glyph); size0 = Charset0::min_size + HBUINT16::static_size * (plan->num_output_glyphs () - 1); @@ -672,9 +690,9 @@ struct cff_subset_plan { cff1_sub_table_info_t info; unsigned int num_glyphs; - unsigned int orig_fdcount; - unsigned int subset_fdcount; - unsigned int subset_fdselect_format; + unsigned int orig_fdcount = 0; + unsigned int subset_fdcount = 1; + unsigned int subset_fdselect_format = 0; hb_vector_t<code_pair_t> subset_fdselect_ranges; /* font dict index remap table from fullset FDArray to subset FDArray. @@ -686,7 +704,7 @@ struct cff_subset_plan { hb_vector_t<str_buff_vec_t> subset_localsubrs; hb_vector_t<cff1_font_dict_values_mod_t> fontdicts_mod; - bool drop_hints; + bool drop_hints = false; bool gid_renum; bool subset_encoding; @@ -702,7 +720,7 @@ struct cff_subset_plan { remap_sid_t sidmap; unsigned int topDictModSIDs[name_dict_values_t::ValCount]; - bool desubroutinize; + bool desubroutinize = false; }; static bool _serialize_cff1 (hb_serialize_context_t *c, @@ -733,7 +751,7 @@ static bool _serialize_cff1 (hb_serialize_context_t *c, PrivateDict *pd = c->start_embed<PrivateDict> (); if (unlikely (!pd)) return false; c->push (); - cff_private_dict_op_serializer_t privSzr (plan.desubroutinize, plan.drop_hints); + cff1_private_dict_op_serializer_t privSzr (plan.desubroutinize, plan.drop_hints); /* N.B. local subrs immediately follows its corresponding private dict. i.e., subr offset == private dict size */ if (likely (pd->serialize (c, acc.privateDicts[i], privSzr, subrs_link))) { @@ -754,11 +772,17 @@ static bool _serialize_cff1 (hb_serialize_context_t *c, /* CharStrings */ { + c->push<CFF1CharStrings> (); + + unsigned total_size = CFF1CharStrings::total_size (plan.subset_charstrings); + if (unlikely (!c->start_zerocopy (total_size))) + return false; + CFF1CharStrings *cs = c->start_embed<CFF1CharStrings> (); if (unlikely (!cs)) return false; - c->push (); + if (likely (cs->serialize (c, plan.subset_charstrings))) - plan.info.char_strings_link = c->pop_pack (); + plan.info.char_strings_link = c->pop_pack (false); else { c->pop_discard (); @@ -841,7 +865,7 @@ static bool _serialize_cff1 (hb_serialize_context_t *c, CFF1Subrs *dest = c->start_embed <CFF1Subrs> (); if (unlikely (!dest)) return false; if (likely (dest->serialize (c, plan.subset_globalsubrs))) - c->pop_pack (); + c->pop_pack (false); else { c->pop_discard (); |