[subset] Add "--name-languages" and "--name-legacy" options

Make name table subsetting consistent with fontTools
This commit is contained in:
Qunxin Liu 2020-01-21 13:37:28 -08:00 committed by Ebrahim Byagowi
parent b7762c7068
commit 36a5c042d7
114 changed files with 121 additions and 4 deletions

View File

@ -108,6 +108,15 @@ struct NameRecord
return_trace (out);
}
bool isUnicode () const
{
unsigned int p = platformID;
unsigned int e = encodingID;
return (p == 0 ||
(p == 3 && (e == 0 || e == 1 || e == 10)));
}
bool sanitize (hb_sanitize_context_t *c, const void *base) const
{
TRACE_SANITIZE (this);
@ -210,6 +219,8 @@ struct name
auto it =
+ nameRecordZ.as_array (count)
| hb_filter (c->plan->name_ids, &NameRecord::nameID)
| hb_filter (c->plan->name_languages, &NameRecord::languageID)
| hb_filter ([&] (const NameRecord& namerecord) { return c->plan->name_legacy || namerecord.isUnicode (); })
;
name_prime->serialize (c->serializer, it, hb_addressof (this + stringOffset));

View File

@ -46,10 +46,13 @@ hb_subset_input_create_or_fail ()
input->glyphs = hb_set_create ();
input->name_ids = hb_set_create ();
hb_set_add_range (input->name_ids, 0, 6);
input->name_languages = hb_set_create ();
hb_set_add (input->name_languages, 0x0409);
input->drop_tables = hb_set_create ();
input->drop_hints = false;
input->desubroutinize = false;
input->retain_gids = false;
input->name_legacy = false;
hb_tag_t default_drop_tables[] = {
// Layout disabled by default
@ -114,6 +117,7 @@ hb_subset_input_destroy (hb_subset_input_t *subset_input)
hb_set_destroy (subset_input->unicodes);
hb_set_destroy (subset_input->glyphs);
hb_set_destroy (subset_input->name_ids);
hb_set_destroy (subset_input->name_languages);
hb_set_destroy (subset_input->drop_tables);
free (subset_input);
@ -149,6 +153,12 @@ hb_subset_input_nameid_set (hb_subset_input_t *subset_input)
return subset_input->name_ids;
}
HB_EXTERN hb_set_t *
hb_subset_input_namelangid_set (hb_subset_input_t *subset_input)
{
return subset_input->name_languages;
}
HB_EXTERN hb_set_t *
hb_subset_input_drop_tables_set (hb_subset_input_t *subset_input)
{
@ -204,3 +214,16 @@ hb_subset_input_get_retain_gids (hb_subset_input_t *subset_input)
{
return subset_input->retain_gids;
}
HB_EXTERN void
hb_subset_input_set_name_legacy (hb_subset_input_t *subset_input,
hb_bool_t name_legacy)
{
subset_input->name_legacy = name_legacy;
}
HB_EXTERN hb_bool_t
hb_subset_input_get_name_legacy (hb_subset_input_t *subset_input)
{
return subset_input->name_legacy;
}

View File

@ -41,11 +41,13 @@ struct hb_subset_input_t
hb_set_t *unicodes;
hb_set_t *glyphs;
hb_set_t *name_ids;
hb_set_t *name_languages;
hb_set_t *drop_tables;
bool drop_hints;
bool desubroutinize;
bool retain_gids;
bool name_legacy;
/* TODO
*
* features

View File

@ -278,9 +278,11 @@ hb_subset_plan_create (hb_face_t *face,
plan->drop_hints = input->drop_hints;
plan->desubroutinize = input->desubroutinize;
plan->retain_gids = input->retain_gids;
plan->name_legacy = input->name_legacy;
plan->unicodes = hb_set_create ();
plan->name_ids = hb_set_reference (input->name_ids);
_nameid_closure (face, plan->name_ids);
plan->name_languages = hb_set_reference (input->name_languages);
plan->drop_tables = hb_set_reference (input->drop_tables);
plan->source = hb_face_reference (face);
plan->dest = hb_face_builder_create ();
@ -323,6 +325,7 @@ hb_subset_plan_destroy (hb_subset_plan_t *plan)
hb_set_destroy (plan->unicodes);
hb_set_destroy (plan->name_ids);
hb_set_destroy (plan->name_languages);
hb_set_destroy (plan->drop_tables);
hb_face_destroy (plan->source);
hb_face_destroy (plan->dest);

View File

@ -42,6 +42,7 @@ struct hb_subset_plan_t
bool drop_hints : 1;
bool desubroutinize : 1;
bool retain_gids : 1;
bool name_legacy : 1;
// For each cp that we'd like to retain maps to the corresponding gid.
hb_set_t *unicodes;
@ -49,6 +50,9 @@ struct hb_subset_plan_t
// name_ids we would like to retain
hb_set_t *name_ids;
// name_languages we would like to retain
hb_set_t *name_languages;
// Tables which should be dropped.
hb_set_t *drop_tables;

View File

@ -57,6 +57,9 @@ hb_subset_input_glyph_set (hb_subset_input_t *subset_input);
HB_EXTERN hb_set_t *
hb_subset_input_nameid_set (hb_subset_input_t *subset_input);
HB_EXTERN hb_set_t *
hb_subset_input_namelangid_set (hb_subset_input_t *subset_input);
HB_EXTERN hb_set_t *
hb_subset_input_drop_tables_set (hb_subset_input_t *subset_input);
@ -78,6 +81,12 @@ hb_subset_input_set_retain_gids (hb_subset_input_t *subset_input,
HB_EXTERN hb_bool_t
hb_subset_input_get_retain_gids (hb_subset_input_t *subset_input);
HB_EXTERN void
hb_subset_input_set_name_legacy (hb_subset_input_t *subset_input,
hb_bool_t name_legacy);
HB_EXTERN hb_bool_t
hb_subset_input_get_name_legacy (hb_subset_input_t *subset_input);
/* hb_subset () */
HB_EXTERN hb_face_t *
hb_subset (hb_face_t *source, hb_subset_input_t *input);

View File

@ -71,6 +71,11 @@ hb_subset_test_create_input_from_nameids (const hb_set_t *name_ids)
hb_subset_input_t *input = hb_subset_input_create_or_fail ();
hb_set_t * input_name_ids = hb_subset_input_nameid_set (input);
hb_set_set (input_name_ids, name_ids);
hb_set_t *name_langids = hb_subset_input_namelangid_set (input);
hb_set_add_range (name_langids, 0, 0x5FFF);
hb_subset_input_set_name_legacy (input, true);
return input;
}

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