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diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-use.cc b/src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-use.cc
deleted file mode 100644
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--- a/src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-use.cc
+++ /dev/null
@@ -1,602 +0,0 @@
-/*
- * Copyright © 2015 Mozilla Foundation.
- * Copyright © 2015 Google, Inc.
- *
- * This is part of HarfBuzz, a text shaping library.
- *
- * Permission is hereby granted, without written agreement and without
- * license or royalty fees, to use, copy, modify, and distribute this
- * software and its documentation for any purpose, provided that the
- * above copyright notice and the following two paragraphs appear in
- * all copies of this software.
- *
- * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
- * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
- * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
- * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
- * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
- * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
- * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- *
- * Mozilla Author(s): Jonathan Kew
- * Google Author(s): Behdad Esfahbod
- */
-
-#include "hb.hh"
-
-#ifndef HB_NO_OT_SHAPE
-
-#include "hb-ot-shape-complex-use.hh"
-#include "hb-ot-shape-complex-arabic.hh"
-#include "hb-ot-shape-complex-vowel-constraints.hh"
-
-/* buffer var allocations */
-#define use_category() complex_var_u8_0()
-
-
-/*
- * Universal Shaping Engine.
- * https://docs.microsoft.com/en-us/typography/script-development/use
- */
-
-static const hb_tag_t
-use_basic_features[] =
-{
- /*
- * Basic features.
- * These features are applied all at once, before reordering.
- */
- HB_TAG('r','k','r','f'),
- HB_TAG('a','b','v','f'),
- HB_TAG('b','l','w','f'),
- HB_TAG('h','a','l','f'),
- HB_TAG('p','s','t','f'),
- HB_TAG('v','a','t','u'),
- HB_TAG('c','j','c','t'),
-};
-static const hb_tag_t
-use_topographical_features[] =
-{
- HB_TAG('i','s','o','l'),
- HB_TAG('i','n','i','t'),
- HB_TAG('m','e','d','i'),
- HB_TAG('f','i','n','a'),
-};
-/* Same order as use_topographical_features. */
-enum joining_form_t {
- USE_ISOL,
- USE_INIT,
- USE_MEDI,
- USE_FINA,
- _USE_NONE
-};
-static const hb_tag_t
-use_other_features[] =
-{
- /*
- * Other features.
- * These features are applied all at once, after reordering and
- * clearing syllables.
- */
- HB_TAG('a','b','v','s'),
- HB_TAG('b','l','w','s'),
- HB_TAG('h','a','l','n'),
- HB_TAG('p','r','e','s'),
- HB_TAG('p','s','t','s'),
-};
-
-static void
-setup_syllables_use (const hb_ot_shape_plan_t *plan,
- hb_font_t *font,
- hb_buffer_t *buffer);
-static void
-record_rphf_use (const hb_ot_shape_plan_t *plan,
- hb_font_t *font,
- hb_buffer_t *buffer);
-static void
-record_pref_use (const hb_ot_shape_plan_t *plan,
- hb_font_t *font,
- hb_buffer_t *buffer);
-static void
-reorder_use (const hb_ot_shape_plan_t *plan,
- hb_font_t *font,
- hb_buffer_t *buffer);
-
-static void
-collect_features_use (hb_ot_shape_planner_t *plan)
-{
- hb_ot_map_builder_t *map = &plan->map;
-
- /* Do this before any lookups have been applied. */
- map->add_gsub_pause (setup_syllables_use);
-
- /* "Default glyph pre-processing group" */
- map->enable_feature (HB_TAG('l','o','c','l'));
- map->enable_feature (HB_TAG('c','c','m','p'));
- map->enable_feature (HB_TAG('n','u','k','t'));
- map->enable_feature (HB_TAG('a','k','h','n'), F_MANUAL_ZWJ);
-
- /* "Reordering group" */
- map->add_gsub_pause (_hb_clear_substitution_flags);
- map->add_feature (HB_TAG('r','p','h','f'), F_MANUAL_ZWJ);
- map->add_gsub_pause (record_rphf_use);
- map->add_gsub_pause (_hb_clear_substitution_flags);
- map->enable_feature (HB_TAG('p','r','e','f'), F_MANUAL_ZWJ);
- map->add_gsub_pause (record_pref_use);
-
- /* "Orthographic unit shaping group" */
- for (unsigned int i = 0; i < ARRAY_LENGTH (use_basic_features); i++)
- map->enable_feature (use_basic_features[i], F_MANUAL_ZWJ);
-
- map->add_gsub_pause (reorder_use);
- map->add_gsub_pause (_hb_clear_syllables);
-
- /* "Topographical features" */
- for (unsigned int i = 0; i < ARRAY_LENGTH (use_topographical_features); i++)
- map->add_feature (use_topographical_features[i]);
- map->add_gsub_pause (nullptr);
-
- /* "Standard typographic presentation" */
- for (unsigned int i = 0; i < ARRAY_LENGTH (use_other_features); i++)
- map->enable_feature (use_other_features[i], F_MANUAL_ZWJ);
-}
-
-struct use_shape_plan_t
-{
- hb_mask_t rphf_mask;
-
- arabic_shape_plan_t *arabic_plan;
-};
-
-static bool
-has_arabic_joining (hb_script_t script)
-{
- /* List of scripts that have data in arabic-table. */
- switch ((int) script)
- {
- /* Unicode-1.1 additions */
- case HB_SCRIPT_ARABIC:
-
- /* Unicode-3.0 additions */
- case HB_SCRIPT_MONGOLIAN:
- case HB_SCRIPT_SYRIAC:
-
- /* Unicode-5.0 additions */
- case HB_SCRIPT_NKO:
- case HB_SCRIPT_PHAGS_PA:
-
- /* Unicode-6.0 additions */
- case HB_SCRIPT_MANDAIC:
-
- /* Unicode-7.0 additions */
- case HB_SCRIPT_MANICHAEAN:
- case HB_SCRIPT_PSALTER_PAHLAVI:
-
- /* Unicode-9.0 additions */
- case HB_SCRIPT_ADLAM:
-
- return true;
-
- default:
- return false;
- }
-}
-
-static void *
-data_create_use (const hb_ot_shape_plan_t *plan)
-{
- use_shape_plan_t *use_plan = (use_shape_plan_t *) calloc (1, sizeof (use_shape_plan_t));
- if (unlikely (!use_plan))
- return nullptr;
-
- use_plan->rphf_mask = plan->map.get_1_mask (HB_TAG('r','p','h','f'));
-
- if (has_arabic_joining (plan->props.script))
- {
- use_plan->arabic_plan = (arabic_shape_plan_t *) data_create_arabic (plan);
- if (unlikely (!use_plan->arabic_plan))
- {
- free (use_plan);
- return nullptr;
- }
- }
-
- return use_plan;
-}
-
-static void
-data_destroy_use (void *data)
-{
- use_shape_plan_t *use_plan = (use_shape_plan_t *) data;
-
- if (use_plan->arabic_plan)
- data_destroy_arabic (use_plan->arabic_plan);
-
- free (data);
-}
-
-enum use_syllable_type_t {
- use_independent_cluster,
- use_virama_terminated_cluster,
- use_sakot_terminated_cluster,
- use_standard_cluster,
- use_number_joiner_terminated_cluster,
- use_numeral_cluster,
- use_symbol_cluster,
- use_broken_cluster,
- use_non_cluster,
-};
-
-#include "hb-ot-shape-complex-use-machine.hh"
-
-
-static void
-setup_masks_use (const hb_ot_shape_plan_t *plan,
- hb_buffer_t *buffer,
- hb_font_t *font HB_UNUSED)
-{
- const use_shape_plan_t *use_plan = (const use_shape_plan_t *) plan->data;
-
- /* Do this before allocating use_category(). */
- if (use_plan->arabic_plan)
- {
- setup_masks_arabic_plan (use_plan->arabic_plan, buffer, plan->props.script);
- }
-
- HB_BUFFER_ALLOCATE_VAR (buffer, use_category);
-
- /* We cannot setup masks here. We save information about characters
- * and setup masks later on in a pause-callback. */
-
- unsigned int count = buffer->len;
- hb_glyph_info_t *info = buffer->info;
- for (unsigned int i = 0; i < count; i++)
- info[i].use_category() = hb_use_get_category (info[i].codepoint);
-}
-
-static void
-setup_rphf_mask (const hb_ot_shape_plan_t *plan,
- hb_buffer_t *buffer)
-{
- const use_shape_plan_t *use_plan = (const use_shape_plan_t *) plan->data;
-
- hb_mask_t mask = use_plan->rphf_mask;
- if (!mask) return;
-
- hb_glyph_info_t *info = buffer->info;
-
- foreach_syllable (buffer, start, end)
- {
- unsigned int limit = info[start].use_category() == USE_R ? 1 : hb_min (3u, end - start);
- for (unsigned int i = start; i < start + limit; i++)
- info[i].mask |= mask;
- }
-}
-
-static void
-setup_topographical_masks (const hb_ot_shape_plan_t *plan,
- hb_buffer_t *buffer)
-{
- const use_shape_plan_t *use_plan = (const use_shape_plan_t *) plan->data;
- if (use_plan->arabic_plan)
- return;
-
- static_assert ((USE_INIT < 4 && USE_ISOL < 4 && USE_MEDI < 4 && USE_FINA < 4), "");
- hb_mask_t masks[4], all_masks = 0;
- for (unsigned int i = 0; i < 4; i++)
- {
- masks[i] = plan->map.get_1_mask (use_topographical_features[i]);
- if (masks[i] == plan->map.get_global_mask ())
- masks[i] = 0;
- all_masks |= masks[i];
- }
- if (!all_masks)
- return;
- hb_mask_t other_masks = ~all_masks;
-
- unsigned int last_start = 0;
- joining_form_t last_form = _USE_NONE;
- hb_glyph_info_t *info = buffer->info;
- foreach_syllable (buffer, start, end)
- {
- use_syllable_type_t syllable_type = (use_syllable_type_t) (info[start].syllable() & 0x0F);
- switch (syllable_type)
- {
- case use_independent_cluster:
- case use_symbol_cluster:
- case use_non_cluster:
- /* These don't join. Nothing to do. */
- last_form = _USE_NONE;
- break;
-
- case use_virama_terminated_cluster:
- case use_sakot_terminated_cluster:
- case use_standard_cluster:
- case use_number_joiner_terminated_cluster:
- case use_numeral_cluster:
- case use_broken_cluster:
-
- bool join = last_form == USE_FINA || last_form == USE_ISOL;
-
- if (join)
- {
- /* Fixup previous syllable's form. */
- last_form = last_form == USE_FINA ? USE_MEDI : USE_INIT;
- for (unsigned int i = last_start; i < start; i++)
- info[i].mask = (info[i].mask & other_masks) | masks[last_form];
- }
-
- /* Form for this syllable. */
- last_form = join ? USE_FINA : USE_ISOL;
- for (unsigned int i = start; i < end; i++)
- info[i].mask = (info[i].mask & other_masks) | masks[last_form];
-
- break;
- }
-
- last_start = start;
- }
-}
-
-static void
-setup_syllables_use (const hb_ot_shape_plan_t *plan,
- hb_font_t *font HB_UNUSED,
- hb_buffer_t *buffer)
-{
- find_syllables_use (buffer);
- foreach_syllable (buffer, start, end)
- buffer->unsafe_to_break (start, end);
- setup_rphf_mask (plan, buffer);
- setup_topographical_masks (plan, buffer);
-}
-
-static void
-record_rphf_use (const hb_ot_shape_plan_t *plan,
- hb_font_t *font HB_UNUSED,
- hb_buffer_t *buffer)
-{
- const use_shape_plan_t *use_plan = (const use_shape_plan_t *) plan->data;
-
- hb_mask_t mask = use_plan->rphf_mask;
- if (!mask) return;
- hb_glyph_info_t *info = buffer->info;
-
- foreach_syllable (buffer, start, end)
- {
- /* Mark a substituted repha as USE_R. */
- for (unsigned int i = start; i < end && (info[i].mask & mask); i++)
- if (_hb_glyph_info_substituted (&info[i]))
- {
- info[i].use_category() = USE_R;
- break;
- }
- }
-}
-
-static void
-record_pref_use (const hb_ot_shape_plan_t *plan HB_UNUSED,
- hb_font_t *font HB_UNUSED,
- hb_buffer_t *buffer)
-{
- hb_glyph_info_t *info = buffer->info;
-
- foreach_syllable (buffer, start, end)
- {
- /* Mark a substituted pref as VPre, as they behave the same way. */
- for (unsigned int i = start; i < end; i++)
- if (_hb_glyph_info_substituted (&info[i]))
- {
- info[i].use_category() = USE_VPre;
- break;
- }
- }
-}
-
-static inline bool
-is_halant_use (const hb_glyph_info_t &info)
-{
- return (info.use_category() == USE_H || info.use_category() == USE_HVM) &&
- !_hb_glyph_info_ligated (&info);
-}
-
-static void
-reorder_syllable_use (hb_buffer_t *buffer, unsigned int start, unsigned int end)
-{
- use_syllable_type_t syllable_type = (use_syllable_type_t) (buffer->info[start].syllable() & 0x0F);
- /* Only a few syllable types need reordering. */
- if (unlikely (!(FLAG_UNSAFE (syllable_type) &
- (FLAG (use_virama_terminated_cluster) |
- FLAG (use_sakot_terminated_cluster) |
- FLAG (use_standard_cluster) |
- FLAG (use_broken_cluster) |
- 0))))
- return;
-
- hb_glyph_info_t *info = buffer->info;
-
-#define POST_BASE_FLAGS64 (FLAG64 (USE_FM) | \
- FLAG64 (USE_FAbv) | \
- FLAG64 (USE_FBlw) | \
- FLAG64 (USE_FPst) | \
- FLAG64 (USE_MAbv) | \
- FLAG64 (USE_MBlw) | \
- FLAG64 (USE_MPst) | \
- FLAG64 (USE_MPre) | \
- FLAG64 (USE_VAbv) | \
- FLAG64 (USE_VBlw) | \
- FLAG64 (USE_VPst) | \
- FLAG64 (USE_VPre) | \
- FLAG64 (USE_VMAbv) | \
- FLAG64 (USE_VMBlw) | \
- FLAG64 (USE_VMPst) | \
- FLAG64 (USE_VMPre))
-
- /* Move things forward. */
- if (info[start].use_category() == USE_R && end - start > 1)
- {
- /* Got a repha. Reorder it towards the end, but before the first post-base
- * glyph. */
- for (unsigned int i = start + 1; i < end; i++)
- {
- bool is_post_base_glyph = (FLAG64_UNSAFE (info[i].use_category()) & POST_BASE_FLAGS64) ||
- is_halant_use (info[i]);
- if (is_post_base_glyph || i == end - 1)
- {
- /* If we hit a post-base glyph, move before it; otherwise move to the
- * end. Shift things in between backward. */
-
- if (is_post_base_glyph)
- i--;
-
- buffer->merge_clusters (start, i + 1);
- hb_glyph_info_t t = info[start];
- memmove (&info[start], &info[start + 1], (i - start) * sizeof (info[0]));
- info[i] = t;
-
- break;
- }
- }
- }
-
- /* Move things back. */
- unsigned int j = start;
- for (unsigned int i = start; i < end; i++)
- {
- uint32_t flag = FLAG_UNSAFE (info[i].use_category());
- if (is_halant_use (info[i]))
- {
- /* If we hit a halant, move after it; otherwise move to the beginning, and
- * shift things in between forward. */
- j = i + 1;
- }
- else if (((flag) & (FLAG (USE_VPre) | FLAG (USE_VMPre))) &&
- /* Only move the first component of a MultipleSubst. */
- 0 == _hb_glyph_info_get_lig_comp (&info[i]) &&
- j < i)
- {
- buffer->merge_clusters (j, i + 1);
- hb_glyph_info_t t = info[i];
- memmove (&info[j + 1], &info[j], (i - j) * sizeof (info[0]));
- info[j] = t;
- }
- }
-}
-
-static inline void
-insert_dotted_circles_use (const hb_ot_shape_plan_t *plan HB_UNUSED,
- hb_font_t *font,
- hb_buffer_t *buffer)
-{
- if (unlikely (buffer->flags & HB_BUFFER_FLAG_DO_NOT_INSERT_DOTTED_CIRCLE))
- return;
-
- /* Note: This loop is extra overhead, but should not be measurable.
- * TODO Use a buffer scratch flag to remove the loop. */
- bool has_broken_syllables = false;
- unsigned int count = buffer->len;
- hb_glyph_info_t *info = buffer->info;
- for (unsigned int i = 0; i < count; i++)
- if ((info[i].syllable() & 0x0F) == use_broken_cluster)
- {
- has_broken_syllables = true;
- break;
- }
- if (likely (!has_broken_syllables))
- return;
-
- hb_glyph_info_t dottedcircle = {0};
- if (!font->get_nominal_glyph (0x25CCu, &dottedcircle.codepoint))
- return;
- dottedcircle.use_category() = hb_use_get_category (0x25CC);
-
- buffer->clear_output ();
-
- buffer->idx = 0;
- unsigned int last_syllable = 0;
- while (buffer->idx < buffer->len && buffer->successful)
- {
- unsigned int syllable = buffer->cur().syllable();
- use_syllable_type_t syllable_type = (use_syllable_type_t) (syllable & 0x0F);
- if (unlikely (last_syllable != syllable && syllable_type == use_broken_cluster))
- {
- last_syllable = syllable;
-
- hb_glyph_info_t ginfo = dottedcircle;
- ginfo.cluster = buffer->cur().cluster;
- ginfo.mask = buffer->cur().mask;
- ginfo.syllable() = buffer->cur().syllable();
-
- /* Insert dottedcircle after possible Repha. */
- while (buffer->idx < buffer->len && buffer->successful &&
- last_syllable == buffer->cur().syllable() &&
- buffer->cur().use_category() == USE_R)
- buffer->next_glyph ();
-
- buffer->output_info (ginfo);
- }
- else
- buffer->next_glyph ();
- }
- buffer->swap_buffers ();
-}
-
-static void
-reorder_use (const hb_ot_shape_plan_t *plan,
- hb_font_t *font,
- hb_buffer_t *buffer)
-{
- insert_dotted_circles_use (plan, font, buffer);
-
- foreach_syllable (buffer, start, end)
- reorder_syllable_use (buffer, start, end);
-
- HB_BUFFER_DEALLOCATE_VAR (buffer, use_category);
-}
-
-
-static void
-preprocess_text_use (const hb_ot_shape_plan_t *plan,
- hb_buffer_t *buffer,
- hb_font_t *font)
-{
- _hb_preprocess_text_vowel_constraints (plan, buffer, font);
-}
-
-static bool
-compose_use (const hb_ot_shape_normalize_context_t *c,
- hb_codepoint_t a,
- hb_codepoint_t b,
- hb_codepoint_t *ab)
-{
- /* Avoid recomposing split matras. */
- if (HB_UNICODE_GENERAL_CATEGORY_IS_MARK (c->unicode->general_category (a)))
- return false;
-
- return (bool)c->unicode->compose (a, b, ab);
-}
-
-
-const hb_ot_complex_shaper_t _hb_ot_complex_shaper_use =
-{
- collect_features_use,
- nullptr, /* override_features */
- data_create_use,
- data_destroy_use,
- preprocess_text_use,
- nullptr, /* postprocess_glyphs */
- HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS_NO_SHORT_CIRCUIT,
- nullptr, /* decompose */
- compose_use,
- setup_masks_use,
- HB_TAG_NONE, /* gpos_tag */
- nullptr, /* reorder_marks */
- HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_EARLY,
- false, /* fallback_position */
-};
-
-
-#endif
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