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-rw-r--r--src/3rdparty/harfbuzz-ng/src/hb-ot-map.cc125
1 files changed, 69 insertions, 56 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-map.cc b/src/3rdparty/harfbuzz-ng/src/hb-ot-map.cc
index 95bd04ee8e..9b331d5210 100644
--- a/src/3rdparty/harfbuzz-ng/src/hb-ot-map.cc
+++ b/src/3rdparty/harfbuzz-ng/src/hb-ot-map.cc
@@ -31,44 +31,13 @@
#include "hb-ot-layout-private.hh"
-void
-hb_ot_map_t::add_lookups (hb_face_t *face,
- unsigned int table_index,
- unsigned int feature_index,
- hb_mask_t mask,
- bool auto_zwj)
+void hb_ot_map_t::collect_lookups (unsigned int table_index, hb_set_t *lookups_out) const
{
- unsigned int lookup_indices[32];
- unsigned int offset, len;
- unsigned int table_lookup_count;
-
- table_lookup_count = hb_ot_layout_table_get_lookup_count (face, table_tags[table_index]);
-
- offset = 0;
- do {
- len = ARRAY_LENGTH (lookup_indices);
- hb_ot_layout_feature_get_lookups (face,
- table_tags[table_index],
- feature_index,
- offset, &len,
- lookup_indices);
-
- for (unsigned int i = 0; i < len; i++)
- {
- if (lookup_indices[i] >= table_lookup_count)
- continue;
- hb_ot_map_t::lookup_map_t *lookup = lookups[table_index].push ();
- if (unlikely (!lookup))
- return;
- lookup->mask = mask;
- lookup->index = lookup_indices[i];
- lookup->auto_zwj = auto_zwj;
- }
-
- offset += len;
- } while (len == ARRAY_LENGTH (lookup_indices));
+ for (unsigned int i = 0; i < lookups[table_index].len; i++)
+ hb_set_add (lookups_out, lookups[table_index][i].index);
}
+
hb_ot_map_builder_t::hb_ot_map_builder_t (hb_face_t *face_,
const hb_segment_properties_t *props_)
{
@@ -89,7 +58,7 @@ hb_ot_map_builder_t::hb_ot_map_builder_t (hb_face_t *face_,
for (unsigned int table_index = 0; table_index < 2; table_index++) {
hb_tag_t table_tag = table_tags[table_index];
- found_script[table_index] = hb_ot_layout_table_choose_script (face, table_tag, script_tags, &script_index[table_index], &chosen_script[table_index]);
+ found_script[table_index] = (bool) hb_ot_layout_table_choose_script (face, table_tag, script_tags, &script_index[table_index], &chosen_script[table_index]);
hb_ot_layout_script_find_language (face, table_tag, script_index[table_index], language_tag, &language_index[table_index]);
}
}
@@ -109,13 +78,48 @@ void hb_ot_map_builder_t::add_feature (hb_tag_t tag, unsigned int value,
info->stage[1] = current_stage[1];
}
-
-void hb_ot_map_t::collect_lookups (unsigned int table_index, hb_set_t *lookups_out) const
+void
+hb_ot_map_builder_t::add_lookups (hb_ot_map_t &m,
+ hb_face_t *face,
+ unsigned int table_index,
+ unsigned int feature_index,
+ unsigned int variations_index,
+ hb_mask_t mask,
+ bool auto_zwj)
{
- for (unsigned int i = 0; i < lookups[table_index].len; i++)
- hb_set_add (lookups_out, lookups[table_index][i].index);
+ unsigned int lookup_indices[32];
+ unsigned int offset, len;
+ unsigned int table_lookup_count;
+
+ table_lookup_count = hb_ot_layout_table_get_lookup_count (face, table_tags[table_index]);
+
+ offset = 0;
+ do {
+ len = ARRAY_LENGTH (lookup_indices);
+ hb_ot_layout_feature_with_variations_get_lookups (face,
+ table_tags[table_index],
+ feature_index,
+ variations_index,
+ offset, &len,
+ lookup_indices);
+
+ for (unsigned int i = 0; i < len; i++)
+ {
+ if (lookup_indices[i] >= table_lookup_count)
+ continue;
+ hb_ot_map_t::lookup_map_t *lookup = m.lookups[table_index].push ();
+ if (unlikely (!lookup))
+ return;
+ lookup->mask = mask;
+ lookup->index = lookup_indices[i];
+ lookup->auto_zwj = auto_zwj;
+ }
+
+ offset += len;
+ } while (len == ARRAY_LENGTH (lookup_indices));
}
+
void hb_ot_map_builder_t::add_pause (unsigned int table_index, hb_ot_map_t::pause_func_t pause_func)
{
stage_info_t *s = stages[table_index].push ();
@@ -128,7 +132,9 @@ void hb_ot_map_builder_t::add_pause (unsigned int table_index, hb_ot_map_t::paus
}
void
-hb_ot_map_builder_t::compile (hb_ot_map_t &m)
+hb_ot_map_builder_t::compile (hb_ot_map_t &m,
+ const int *coords,
+ unsigned int num_coords)
{
m.global_mask = 1;
@@ -193,7 +199,8 @@ hb_ot_map_builder_t::compile (hb_ot_map_t &m)
/* Uses the global bit */
bits_needed = 0;
else
- bits_needed = _hb_bit_storage (info->max_value);
+ /* Limit to 8 bits per feature. */
+ bits_needed = MIN(8u, _hb_bit_storage (info->max_value));
if (!info->max_value || next_bit + bits_needed > 8 * sizeof (hb_mask_t))
continue; /* Feature disabled, or not enough bits. */
@@ -204,11 +211,8 @@ hb_ot_map_builder_t::compile (hb_ot_map_t &m)
for (unsigned int table_index = 0; table_index < 2; table_index++)
{
if (required_feature_tag[table_index] == info->tag)
- {
required_feature_stage[table_index] = info->stage[table_index];
- found = true;
- continue;
- }
+
found |= hb_ot_layout_language_find_feature (face,
table_tags[table_index],
script_index[table_index],
@@ -246,11 +250,11 @@ hb_ot_map_builder_t::compile (hb_ot_map_t &m)
map->mask = 1;
} else {
map->shift = next_bit;
- map->mask = (1 << (next_bit + bits_needed)) - (1 << next_bit);
+ map->mask = (1u << (next_bit + bits_needed)) - (1u << next_bit);
next_bit += bits_needed;
m.global_mask |= (info->default_value << map->shift) & map->mask;
}
- map->_1_mask = (1 << map->shift) & map->mask;
+ map->_1_mask = (1u << map->shift) & map->mask;
map->needs_fallback = !found;
}
@@ -264,23 +268,32 @@ hb_ot_map_builder_t::compile (hb_ot_map_t &m)
{
/* Collect lookup indices for features */
+ unsigned int variations_index;
+ hb_ot_layout_table_find_feature_variations (face,
+ table_tags[table_index],
+ coords,
+ num_coords,
+ &variations_index);
+
unsigned int stage_index = 0;
unsigned int last_num_lookups = 0;
for (unsigned stage = 0; stage < current_stage[table_index]; stage++)
{
if (required_feature_index[table_index] != HB_OT_LAYOUT_NO_FEATURE_INDEX &&
required_feature_stage[table_index] == stage)
- m.add_lookups (face, table_index,
- required_feature_index[table_index],
- 1 /* mask */,
- true /* auto_zwj */);
+ add_lookups (m, face, table_index,
+ required_feature_index[table_index],
+ variations_index,
+ 1 /* mask */,
+ true /* auto_zwj */);
for (unsigned i = 0; i < m.features.len; i++)
if (m.features[i].stage[table_index] == stage)
- m.add_lookups (face, table_index,
- m.features[i].index[table_index],
- m.features[i].mask,
- m.features[i].auto_zwj);
+ add_lookups (m, face, table_index,
+ m.features[i].index[table_index],
+ variations_index,
+ m.features[i].mask,
+ m.features[i].auto_zwj);
/* Sort lookups and merge duplicates */
if (last_num_lookups < m.lookups[table_index].len)
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 14:36:34 +0000