diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-subset-cff-common.hh')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-subset-cff-common.hh | 169 |
1 files changed, 116 insertions, 53 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-subset-cff-common.hh b/src/3rdparty/harfbuzz-ng/src/hb-subset-cff-common.hh index ff50b0e518..4039f9c959 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-subset-cff-common.hh +++ b/src/3rdparty/harfbuzz-ng/src/hb-subset-cff-common.hh @@ -115,7 +115,7 @@ struct str_encoder_t encode_byte (OpCode_BCD); // Based on: - // https://github.com/fonttools/fonttools/blob/97ed3a61cde03e17b8be36f866192fbd56f1d1a7/Lib/fontTools/misc/psCharStrings.py#L265-L294 + // https://github.com/fonttools/fonttools/blob/0738c41dfbcbc213ab9263f486ef0cccc6eb5ce5/Lib/fontTools/misc/psCharStrings.py#L267-L316 char buf[16]; /* FontTools has the following comment: @@ -133,6 +133,10 @@ struct str_encoder_t (void) hb_uselocale (((void) freelocale (clocale), oldlocale)); char *s = buf; + size_t len; + char *comma = strchr (s, ','); + if (comma) // Comma for some European locales in case no uselocale available. + *comma = '.'; if (s[0] == '0' && s[1] == '.') s++; else if (s[0] == '-' && s[1] == '0' && s[2] == '.') @@ -140,6 +144,45 @@ struct str_encoder_t s[1] = '-'; s++; } + else if ((len = strlen (s)) > 3 && !strcmp (s + len - 3, "000")) + { + unsigned exponent = len - 3; + char *s2 = s + exponent - 1; + while (*s2 == '0' && exponent > 1) + { + s2--; + exponent++; + } + snprintf (s2 + 1, sizeof (buf) - (s2 + 1 - buf), "E%u", exponent); + } + else + { + char *dot = strchr (s, '.'); + char *e = strchr (s, 'E'); + if (dot && e) + { + memmove (dot, dot + 1, e - (dot + 1)); + int exponent = atoi (e + 1); + int new_exponent = exponent - (e - (dot + 1)); + if (new_exponent == 1) + { + e[-1] = '0'; + e[0] = '\0'; + } + else + snprintf (e - 1, sizeof (buf) - (e - 1 - buf), "E%d", new_exponent); + } + } + if ((s[0] == '.' && s[1] == '0') || (s[0] == '-' && s[1] == '.' && s[2] == '0')) + { + int sign = s[0] == '-'; + char *s2 = s + sign + 1; + while (*s2 == '0') + s2++; + len = strlen (s2); + memmove (s + sign, s2, len); + snprintf (s + sign + len, sizeof (buf) - (s + sign + len - buf), "E-%u", (unsigned) (strlen (s + sign) - 1)); + } hb_vector_t<char> nibbles; while (*s) { @@ -155,20 +198,22 @@ struct str_encoder_t { s++; nibbles.push (0x0C); // E- - continue; + } else { + if (c2 == '+') + s++; + nibbles.push (0x0B); // E } - if (c2 == '+') + if (*s == '0') s++; - nibbles.push (0x0B); // E continue; } - case '.': case ',': // Comma for some European locales in case no uselocale available. + case '.': nibbles.push (0x0A); // . continue; case '-': - nibbles.push (0x0E); // . + nibbles.push (0x0E); // - continue; } @@ -480,6 +525,7 @@ struct cff_subset_accelerator_t const hb_vector_t<parsed_cs_str_vec_t>& parsed_local_subrs) { cff_subset_accelerator_t* accel = (cff_subset_accelerator_t*) hb_malloc (sizeof(cff_subset_accelerator_t)); + if (unlikely (!accel)) return nullptr; new (accel) cff_subset_accelerator_t (original_blob, parsed_charstrings, parsed_global_subrs, @@ -510,15 +556,21 @@ struct cff_subset_accelerator_t original_blob = hb_blob_reference (original_blob_); } - ~cff_subset_accelerator_t() { + ~cff_subset_accelerator_t() + { hb_blob_destroy (original_blob); - hb_map_destroy (glyph_to_sid_map.get_relaxed ()); + auto *mapping = glyph_to_sid_map.get_relaxed (); + if (mapping) + { + mapping->~glyph_to_sid_map_t (); + hb_free (mapping); + } } parsed_cs_str_vec_t parsed_charstrings; parsed_cs_str_vec_t parsed_global_subrs; hb_vector_t<parsed_cs_str_vec_t> parsed_local_subrs; - mutable hb_atomic_ptr_t<hb_map_t> glyph_to_sid_map = nullptr; + mutable hb_atomic_ptr_t<glyph_to_sid_map_t> glyph_to_sid_map; private: hb_blob_t* original_blob; @@ -600,9 +652,8 @@ struct subr_remap_t : hb_inc_bimap_t * no optimization based on usage counts. fonttools doesn't appear doing that either. */ - resize (closure->get_population ()); - hb_codepoint_t old_num = HB_SET_VALUE_INVALID; - while (hb_set_next (closure, &old_num)) + alloc (closure->get_population ()); + for (auto old_num : *closure) add (old_num); if (get_population () < 1240) @@ -672,8 +723,8 @@ struct subr_subsetter_t { unsigned fd_count = acc.fdCount; const cff_subset_accelerator_t* cff_accelerator = nullptr; - if (plan->accelerator && plan->accelerator->cff_accelerator) { - cff_accelerator = plan->accelerator->cff_accelerator; + if (acc.cff_accelerator) { + cff_accelerator = acc.cff_accelerator; fd_count = cff_accelerator->parsed_local_subrs.length; } @@ -709,14 +760,13 @@ struct subr_subsetter_t } /* phase 1 & 2 */ - for (unsigned int i = 0; i < plan->num_output_glyphs (); i++) + for (auto _ : plan->new_to_old_gid_list) { - hb_codepoint_t glyph; - if (!plan->old_gid_for_new_gid (i, &glyph)) - continue; + hb_codepoint_t new_glyph = _.first; + hb_codepoint_t old_glyph = _.second; - const hb_ubytes_t str = (*acc.charStrings)[glyph]; - unsigned int fd = acc.fdSelect->get_fd (glyph); + const hb_ubytes_t str = (*acc.charStrings)[old_glyph]; + unsigned int fd = acc.fdSelect->get_fd (old_glyph); if (unlikely (fd >= acc.fdCount)) return false; @@ -725,9 +775,9 @@ struct subr_subsetter_t // parsed string already exists in accelerator, copy it and move // on. if (cached_charstrings) - cached_charstrings[i] = &cff_accelerator->parsed_charstrings[glyph]; + cached_charstrings[new_glyph] = &cff_accelerator->parsed_charstrings[old_glyph]; else - parsed_charstrings[i] = cff_accelerator->parsed_charstrings[glyph]; + parsed_charstrings[new_glyph] = cff_accelerator->parsed_charstrings[old_glyph]; continue; } @@ -735,8 +785,8 @@ struct subr_subsetter_t ENV env (str, acc, fd); cs_interpreter_t<ENV, OPSET, subr_subset_param_t> interp (env); - parsed_charstrings[i].alloc (str.length); - subr_subset_param_t param (&parsed_charstrings[i], + parsed_charstrings[new_glyph].alloc (str.length); + subr_subset_param_t param (&parsed_charstrings[new_glyph], &parsed_global_subrs_storage, &parsed_local_subrs_storage[fd], &closures.global_closure, @@ -747,12 +797,12 @@ struct subr_subsetter_t return false; /* complete parsed string esp. copy CFF1 width or CFF2 vsindex to the parsed charstring for encoding */ - SUBSETTER::complete_parsed_str (interp.env, param, parsed_charstrings[i]); + SUBSETTER::complete_parsed_str (interp.env, param, parsed_charstrings[new_glyph]); /* mark hint ops and arguments for drop */ if ((plan->flags & HB_SUBSET_FLAGS_NO_HINTING) || plan->inprogress_accelerator) { - subr_subset_param_t param (&parsed_charstrings[i], + subr_subset_param_t param (&parsed_charstrings[new_glyph], &parsed_global_subrs_storage, &parsed_local_subrs_storage[fd], &closures.global_closure, @@ -760,21 +810,21 @@ struct subr_subsetter_t plan->flags & HB_SUBSET_FLAGS_NO_HINTING); drop_hints_param_t drop; - if (drop_hints_in_str (parsed_charstrings[i], param, drop)) + if (drop_hints_in_str (parsed_charstrings[new_glyph], param, drop)) { - parsed_charstrings[i].set_hint_dropped (); + parsed_charstrings[new_glyph].set_hint_dropped (); if (drop.vsindex_dropped) - parsed_charstrings[i].set_vsindex_dropped (); + parsed_charstrings[new_glyph].set_vsindex_dropped (); } } - /* Doing this here one by one instead of compacting all at the en + /* Doing this here one by one instead of compacting all at the end * has massive peak-memory saving. * * The compacting both saves memory and makes further operations * faster. */ - parsed_charstrings[i].compact (); + parsed_charstrings[new_glyph].compact (); } /* Since parsed strings were loaded from accelerator, we still need @@ -797,23 +847,40 @@ struct subr_subsetter_t bool encode_charstrings (str_buff_vec_t &buffArray, bool encode_prefix = true) const { - if (unlikely (!buffArray.resize_exact (plan->num_output_glyphs ()))) + unsigned num_glyphs = plan->num_output_glyphs (); + if (unlikely (!buffArray.resize_exact (num_glyphs))) return false; - for (unsigned int i = 0; i < plan->num_output_glyphs (); i++) + hb_codepoint_t last = 0; + for (auto _ : plan->new_to_old_gid_list) { - hb_codepoint_t glyph; - if (!plan->old_gid_for_new_gid (i, &glyph)) - { - /* add an endchar only charstring for a missing glyph if CFF1 */ - if (endchar_op != OpCode_Invalid) buffArray.arrayZ[i].push (endchar_op); - continue; - } - unsigned int fd = acc.fdSelect->get_fd (glyph); + hb_codepoint_t gid = _.first; + hb_codepoint_t old_glyph = _.second; + + if (endchar_op != OpCode_Invalid) + for (; last < gid; last++) + { + // Hack to point vector to static string. + auto &b = buffArray.arrayZ[last]; + b.length = 1; + b.arrayZ = const_cast<unsigned char *>(endchar_str); + } + + last++; // Skip over gid + unsigned int fd = acc.fdSelect->get_fd (old_glyph); if (unlikely (fd >= acc.fdCount)) return false; - if (unlikely (!encode_str (get_parsed_charstring (i), fd, buffArray.arrayZ[i], encode_prefix))) + if (unlikely (!encode_str (get_parsed_charstring (gid), fd, buffArray.arrayZ[gid], encode_prefix))) return false; } + if (endchar_op != OpCode_Invalid) + for (; last < num_glyphs; last++) + { + // Hack to point vector to static string. + auto &b = buffArray.arrayZ[last]; + b.length = 1; + b.arrayZ = const_cast<unsigned char *>(endchar_str); + } + return true; } @@ -980,24 +1047,23 @@ struct subr_subsetter_t const hb_vector_t<parsed_cs_str_vec_t>& local_subrs) { closures.reset (); - for (unsigned int i = 0; i < plan->num_output_glyphs (); i++) + for (auto _ : plan->new_to_old_gid_list) { - hb_codepoint_t glyph; - if (!plan->old_gid_for_new_gid (i, &glyph)) - continue; - unsigned int fd = acc.fdSelect->get_fd (glyph); + hb_codepoint_t new_glyph = _.first; + hb_codepoint_t old_glyph = _.second; + unsigned int fd = acc.fdSelect->get_fd (old_glyph); if (unlikely (fd >= acc.fdCount)) return false; // Note: const cast is safe here because the collect_subr_refs_in_str only performs a // closure and does not modify any of the charstrings. - subr_subset_param_t param (const_cast<parsed_cs_str_t*> (&get_parsed_charstring (i)), + subr_subset_param_t param (const_cast<parsed_cs_str_t*> (&get_parsed_charstring (new_glyph)), const_cast<parsed_cs_str_vec_t*> (&global_subrs), const_cast<parsed_cs_str_vec_t*> (&local_subrs[fd]), &closures.global_closure, &closures.local_closures[fd], plan->flags & HB_SUBSET_FLAGS_NO_HINTING); - collect_subr_refs_in_str (get_parsed_charstring (i), param); + collect_subr_refs_in_str (get_parsed_charstring (new_glyph), param); } return true; @@ -1105,14 +1171,11 @@ struct subr_subsetter_t compact_parsed_subrs (); - plan->inprogress_accelerator->cff_accelerator = + acc.cff_accelerator = cff_subset_accelerator_t::create(acc.blob, parsed_charstrings, parsed_global_subrs_storage, parsed_local_subrs_storage); - plan->inprogress_accelerator->destroy_cff_accelerator = - cff_subset_accelerator_t::destroy; - } const parsed_cs_str_t& get_parsed_charstring (unsigned i) const |