提交 74e0c13a 编写于 作者: R Rod Sheeter

[subset] drop hint tables if so flagged. Still need to dump glyf instructions.

上级 0bd100e1
......@@ -191,6 +191,7 @@ hb_subset_plan_create (hb_face_t *face,
plan->gids_to_retain_sorted.init();
plan->source = hb_face_reference (face);
plan->dest = hb_subset_face_create ();
plan->drop_hints = input->drop_hints;
_populate_codepoints (input->unicodes, plan->codepoints);
_populate_gids_to_retain (face,
......
......@@ -37,6 +37,8 @@ struct hb_subset_plan_t {
hb_object_header_t header;
ASSERT_POD ();
hb_bool_t drop_hints;
// TODO(Q1) actual map, drop this crap
// Look at me ma, I'm a poor mans map codepoint : new gid
// codepoints is sorted and aligned with gids_to_retain.
......
......@@ -43,7 +43,7 @@ struct hb_subset_input_t {
hb_set_t *unicodes;
hb_set_t *glyphs;
hb_bool_t retain_hints;
hb_bool_t drop_hints;
/* TODO
*
* features
......
......@@ -268,9 +268,16 @@ _subset_table (hb_subset_plan_t *plan,
}
static bool
_should_drop_table(hb_tag_t tag)
_should_drop_table(hb_subset_plan_t *plan, hb_tag_t tag)
{
switch (tag) {
case HB_TAG ('c', 'v', 'a', 'r'): /* hint table, fallthrough */
case HB_TAG ('c', 'v', 't', ' '): /* hint table, fallthrough */
case HB_TAG ('f', 'p', 'g', 'm'): /* hint table, fallthrough */
case HB_TAG ('p', 'r', 'e', 'p'): /* hint table, fallthrough */
case HB_TAG ('h', 'd', 'm', 'x'): /* hint table, fallthrough */
case HB_TAG ('V', 'D', 'M', 'X'): /* hint table, fallthrough */
return plan->drop_hints;
case HB_TAG ('G', 'D', 'E', 'F'): /* temporary */
case HB_TAG ('G', 'P', 'O', 'S'): /* temporary */
case HB_TAG ('G', 'S', 'U', 'B'): /* temporary */
......@@ -307,7 +314,7 @@ hb_subset (hb_face_t *source,
for (unsigned int i = 0; i < count; i++)
{
hb_tag_t tag = table_tags[i];
if (_should_drop_table(tag))
if (_should_drop_table(plan, tag))
{
DEBUG_MSG(SUBSET, nullptr, "drop %c%c%c%c", HB_UNTAG(tag));
continue;
......
......@@ -90,7 +90,7 @@ struct subset_consumer_t
void finish (const font_options_t *font_opts)
{
input->retain_hints = subset_options.hinting;
input->drop_hints = subset_options.drop_hints;
hb_subset_profile_t *subset_profile = hb_subset_profile_create();
hb_face_t *face = hb_font_get_face (font);
......
......@@ -992,7 +992,7 @@ subset_options_t::add_options (option_parser_t *parser)
{
GOptionEntry entries[] =
{
{"hinting", 0, 0, G_OPTION_ARG_NONE, &this->hinting, "Whether to retain or drop hints", nullptr},
{"no-hinting", 0, 0, G_OPTION_ARG_NONE, &this->drop_hints, "Whether to drop hints", nullptr},
{nullptr}
};
parser->add_group (entries,
......
......@@ -653,14 +653,14 @@ struct subset_options_t : option_group_t
{
subset_options_t (option_parser_t *parser)
{
hinting = true;
drop_hints = false;
add_options (parser);
}
void add_options (option_parser_t *parser);
hb_bool_t hinting;
hb_bool_t drop_hints;
};
/* fallback implementation for scalbn()/scalbnf() for pre-2013 MSVC */
......
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