Merge pull request #3171 from googlefonts/unicode_glyph_invert
[subset] use inverted set for all unicodes.
This commit is contained in:
Behdad Esfahbod
GitHub
commit
18b4aab652
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@ -240,7 +240,12 @@ _populate_unicodes_to_retain (const hb_set_t *unicodes,
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{
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OT::cmap::accelerator_t cmap;
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cmap.init (plan->source);
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constexpr static const int size_threshold = 4000;
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if (unicodes->get_population () < size_threshold && glyphs->is_empty ())
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{
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// This is the fast path if it's anticipated that size of unicodes
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// is << than the number of codepoints in the font.
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for (hb_codepoint_t cp : *unicodes)
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{
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hb_codepoint_t gid;
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@ -249,33 +254,41 @@ _populate_unicodes_to_retain (const hb_set_t *unicodes,
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DEBUG_MSG(SUBSET, nullptr, "Drop U+%04X; no gid", cp);
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continue;
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}
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plan->unicodes->add (cp);
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plan->codepoint_to_glyph->set (cp, gid);
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plan->_glyphset_gsub->add (gid);
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}
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if (glyphs->is_empty ())
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{
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cmap.fini ();
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return;
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}
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} else {
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hb_map_t unicode_glyphid_map;
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cmap.collect_mapping (hb_set_get_empty (), &unicode_glyphid_map);
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cmap.fini ();
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for (hb_pair_t<hb_codepoint_t, hb_codepoint_t> cp_gid :
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+ unicode_glyphid_map.iter () | hb_filter (glyphs, hb_second))
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+ unicode_glyphid_map.iter ())
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{
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plan->unicodes->add (cp_gid.first);
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if (!unicodes->has (cp_gid.first) && !glyphs->has (cp_gid.second))
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continue;
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plan->codepoint_to_glyph->set (cp_gid.first, cp_gid.second);
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}
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// Add gids which where requested, but not mapped in cmap
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// TODO(garretrieger): once https://github.com/harfbuzz/harfbuzz/issues/3169
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// is implemented, this can be done with union and del_range
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for (hb_codepoint_t gid : glyphs->iter ())
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{
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if (gid >= plan->source->get_num_glyphs ())
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break;
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plan->_glyphset_gsub->add (gid);
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}
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}
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+ plan->codepoint_to_glyph->keys () | hb_sink (plan->unicodes);
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+ plan->codepoint_to_glyph->values () | hb_sink (plan->_glyphset_gsub);
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}
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static void
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_populate_gids_to_retain (hb_subset_plan_t* plan,
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const hb_set_t *unicodes,
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const hb_set_t *input_glyphs_to_retain,
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bool close_over_gsub,
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bool close_over_gpos,
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bool close_over_gdef)
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@ -292,7 +305,6 @@ _populate_gids_to_retain (hb_subset_plan_t* plan,
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colr.init (plan->source);
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plan->_glyphset_gsub->add (0); // Not-def
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hb_set_union (plan->_glyphset_gsub, input_glyphs_to_retain);
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_cmap_closure (plan->source, plan->unicodes, plan->_glyphset_gsub);
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@ -477,8 +489,6 @@ hb_subset_plan_create (hb_face_t *face,
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_populate_unicodes_to_retain (input->unicodes, input->glyphs, plan);
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_populate_gids_to_retain (plan,
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input->unicodes,
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input->glyphs,
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!input->drop_tables->has (HB_OT_TAG_GSUB),
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!input->drop_tables->has (HB_OT_TAG_GPOS),
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!input->drop_tables->has (HB_OT_TAG_GDEF));
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@ -131,13 +131,6 @@ struct subset_main_t : option_parser_t, face_options_t, output_options_t<false>
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return true;
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}
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void
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add_all_unicodes ()
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{
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hb_set_t *codepoints = hb_subset_input_unicode_set (input);
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hb_face_collect_unicodes (face, codepoints);
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}
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void add_options ();
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protected:
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@ -165,8 +158,17 @@ parse_gids (const char *name G_GNUC_UNUSED,
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GError **error)
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{
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subset_main_t *subset_main = (subset_main_t *) data;
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hb_bool_t is_remove = (name[strlen (name) - 1] == '-');
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hb_set_t *gids = hb_subset_input_glyph_set (subset_main->input);
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if (0 == strcmp (arg, "*"))
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{
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hb_set_clear (gids);
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if (!is_remove)
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hb_set_invert (gids);
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return true;
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}
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char *s = (char *) arg;
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char *p;
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@ -203,11 +205,17 @@ parse_gids (const char *name G_GNUC_UNUSED,
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"Invalid glyph-index range %u-%u", start_code, end_code);
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return false;
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}
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if (!is_remove)
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hb_set_add_range (gids, start_code, end_code);
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else
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hb_set_del_range (gids, start_code, end_code);
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}
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else
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{
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if (!is_remove)
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hb_set_add (gids, start_code);
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else
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hb_set_del (gids, start_code);
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}
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s = p;
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@ -223,8 +231,17 @@ parse_glyphs (const char *name G_GNUC_UNUSED,
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GError **error G_GNUC_UNUSED)
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{
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subset_main_t *subset_main = (subset_main_t *) data;
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hb_bool_t is_remove = (name[strlen (name) - 1] == '-');
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hb_set_t *gids = hb_subset_input_glyph_set (subset_main->input);
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if (0 == strcmp (arg, "*"))
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{
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hb_set_clear (gids);
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if (!is_remove)
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hb_set_invert (gids);
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return true;
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}
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const char *p = arg;
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const char *p_end = arg + strlen (arg);
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@ -248,7 +265,10 @@ parse_glyphs (const char *name G_GNUC_UNUSED,
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return false;
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}
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if (!is_remove)
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hb_set_add (gids, gid);
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else
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hb_set_del (gids, gid);
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}
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p = end + 1;
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@ -265,20 +285,26 @@ parse_text (const char *name G_GNUC_UNUSED,
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GError **error G_GNUC_UNUSED)
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{
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subset_main_t *subset_main = (subset_main_t *) data;
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hb_bool_t is_remove = (name[strlen (name) - 1] == '-');
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hb_set_t *unicodes = hb_subset_input_unicode_set (subset_main->input);
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if (0 == strcmp (arg, "*"))
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{
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subset_main->add_all_unicodes ();
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hb_set_clear (unicodes);
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if (!is_remove)
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hb_set_invert (unicodes);
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return true;
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}
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hb_set_t *unicodes = hb_subset_input_unicode_set (subset_main->input);
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for (gchar *c = (gchar *) arg;
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*c;
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c = g_utf8_find_next_char(c, nullptr))
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{
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gunichar cp = g_utf8_get_char(c);
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if (!is_remove)
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hb_set_add (unicodes, cp);
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else
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hb_set_del (unicodes, cp);
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}
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return true;
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}
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@ -290,16 +316,18 @@ parse_unicodes (const char *name G_GNUC_UNUSED,
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GError **error)
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{
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subset_main_t *subset_main = (subset_main_t *) data;
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hb_bool_t is_remove = (name[strlen (name) - 1] == '-');
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hb_set_t *unicodes = hb_subset_input_unicode_set (subset_main->input);
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if (0 == strcmp (arg, "*"))
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{
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subset_main->add_all_unicodes ();
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hb_set_clear (unicodes);
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if (!is_remove)
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hb_set_invert (unicodes);
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return true;
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}
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// XXX TODO Ranges
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hb_set_t *unicodes = hb_subset_input_unicode_set (subset_main->input);
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#define DELIMITERS "<+->{},;&#\\xXuUnNiI\n\t\v\f\r "
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char *s = (char *) arg;
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@ -338,11 +366,17 @@ parse_unicodes (const char *name G_GNUC_UNUSED,
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"Invalid Unicode range %u-%u", start_code, end_code);
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return false;
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}
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if (!is_remove)
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hb_set_add_range (unicodes, start_code, end_code);
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else
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hb_set_del_range (unicodes, start_code, end_code);
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}
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else
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{
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if (!is_remove)
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hb_set_add (unicodes, start_code);
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else
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hb_set_del (unicodes, start_code);
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}
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s = p;
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@ -667,13 +701,39 @@ subset_main_t::add_options ()
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GOptionEntry glyphset_entries[] =
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{
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{"gids", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_gids, "Specify glyph IDs or ranges to include in the subset", "list of glyph indices/ranges"},
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{"gids", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_gids,
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"Specify glyph IDs or ranges to include in the subset.\n"
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" "
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"Use --gids-=... to subtract codepoints from the current set.", "list of glyph indices/ranges or *"},
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{"gids-", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_gids, "Specify glyph IDs or ranges to remove from the subset", "list of glyph indices/ranges or *"},
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{"gids+", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_gids, "Specify glyph IDs or ranges to include in the subset", "list of glyph indices/ranges or *"},
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{"gids-file", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_file_for<parse_gids>, "Specify file to read glyph IDs or ranges from", "filename"},
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{"glyphs", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_glyphs, "Specify glyph names to include in the subset", "list of glyph names"},
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{"glyphs", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_glyphs, "Specify glyph names to include in the subset. Use --glyphs-=... to subtract glyphs from the current set.", "list of glyph names or *"},
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{"glyphs+", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_glyphs, "Specify glyph names to include in the subset", "list of glyph names"},
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{"glyphs-", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_glyphs, "Specify glyph names to remove from the subset", "list of glyph names"},
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{"glyphs-file", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_file_for<parse_glyphs>, "Specify file to read glyph names fromt", "filename"},
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{"text", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_text, "Specify text to include in the subset", "string"},
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{"text", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_text, "Specify text to include in the subset. Use --text-=... to subtract codepoints from the current set.", "string"},
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{"text-", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_text, "Specify text to remove from the subset", "string"},
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{"text+", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_text, "Specify text to include in the subset", "string"},
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{"text-file", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_file_for<parse_text, false>,"Specify file to read text from", "filename"},
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{"unicodes", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_unicodes, "Specify Unicode codepoints or ranges to include in the subset", "list of hex numbers/ranges"},
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{"unicodes", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_unicodes,
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"Specify Unicode codepoints or ranges to include in the subset. Use * to include all codepoints.\n"
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" "
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"--unicodes-=... can be used to subtract codepoints "
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"from the current set.\n"
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" "
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"For example: --unicodes=* --unicodes-=41,42,43 would create a subset with all codepoints\n"
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" "
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"except for 41, 42, 43.",
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"list of hex numbers/ranges or *"},
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{"unicodes-", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_unicodes, "Specify Unicode codepoints or ranges to remove from the subset", "list of hex numbers/ranges or *"},
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{"unicodes+", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, (gpointer) &parse_unicodes, "Specify Unicode codepoints or ranges to include in the subset", "list of hex numbers/ranges or *"},
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{"unicodes-file", 0, 0, G_OPTION_ARG_CALLBACK, (gpointer) &parse_file_for<parse_unicodes>,"Specify file to read Unicode codepoints or ranges from", "filename"},
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{nullptr}
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};
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