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-rw-r--r--thirdparty/harfbuzz/src/hb-ot-shape-complex-myanmar.cc321
1 files changed, 0 insertions, 321 deletions
diff --git a/thirdparty/harfbuzz/src/hb-ot-shape-complex-myanmar.cc b/thirdparty/harfbuzz/src/hb-ot-shape-complex-myanmar.cc
deleted file mode 100644
index e6ae75e8f2..0000000000
--- a/thirdparty/harfbuzz/src/hb-ot-shape-complex-myanmar.cc
+++ /dev/null
@@ -1,321 +0,0 @@
-/*
- * Copyright © 2011,2012,2013 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.
- *
- * Google Author(s): Behdad Esfahbod
- */
-
-#include "hb.hh"
-
-#ifndef HB_NO_OT_SHAPE
-
-#include "hb-ot-shape-complex-myanmar.hh"
-#include "hb-ot-shape-complex-myanmar-machine.hh"
-
-
-/*
- * Myanmar shaper.
- */
-
-static const hb_tag_t
-myanmar_basic_features[] =
-{
- /*
- * Basic features.
- * These features are applied in order, one at a time, after reordering,
- * constrained to the syllable.
- */
- HB_TAG('r','p','h','f'),
- HB_TAG('p','r','e','f'),
- HB_TAG('b','l','w','f'),
- HB_TAG('p','s','t','f'),
-};
-static const hb_tag_t
-myanmar_other_features[] =
-{
- /*
- * Other features.
- * These features are applied all at once, after clearing syllables.
- */
- HB_TAG('p','r','e','s'),
- HB_TAG('a','b','v','s'),
- HB_TAG('b','l','w','s'),
- HB_TAG('p','s','t','s'),
-};
-
-static void
-setup_syllables_myanmar (const hb_ot_shape_plan_t *plan,
- hb_font_t *font,
- hb_buffer_t *buffer);
-static void
-reorder_myanmar (const hb_ot_shape_plan_t *plan,
- hb_font_t *font,
- hb_buffer_t *buffer);
-
-static void
-collect_features_myanmar (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_myanmar);
-
- map->enable_feature (HB_TAG('l','o','c','l'));
- /* The Indic specs do not require ccmp, but we apply it here since if
- * there is a use of it, it's typically at the beginning. */
- map->enable_feature (HB_TAG('c','c','m','p'));
-
-
- map->add_gsub_pause (reorder_myanmar);
-
- for (unsigned int i = 0; i < ARRAY_LENGTH (myanmar_basic_features); i++)
- {
- map->enable_feature (myanmar_basic_features[i], F_MANUAL_ZWJ);
- map->add_gsub_pause (nullptr);
- }
-
- map->add_gsub_pause (_hb_clear_syllables);
-
- for (unsigned int i = 0; i < ARRAY_LENGTH (myanmar_other_features); i++)
- map->enable_feature (myanmar_other_features[i], F_MANUAL_ZWJ);
-}
-
-static void
-setup_masks_myanmar (const hb_ot_shape_plan_t *plan HB_UNUSED,
- hb_buffer_t *buffer,
- hb_font_t *font HB_UNUSED)
-{
- HB_BUFFER_ALLOCATE_VAR (buffer, myanmar_category);
- HB_BUFFER_ALLOCATE_VAR (buffer, myanmar_position);
-
- /* 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++)
- set_myanmar_properties (info[i]);
-}
-
-static void
-setup_syllables_myanmar (const hb_ot_shape_plan_t *plan HB_UNUSED,
- hb_font_t *font HB_UNUSED,
- hb_buffer_t *buffer)
-{
- find_syllables_myanmar (buffer);
- foreach_syllable (buffer, start, end)
- buffer->unsafe_to_break (start, end);
-}
-
-static int
-compare_myanmar_order (const hb_glyph_info_t *pa, const hb_glyph_info_t *pb)
-{
- int a = pa->myanmar_position();
- int b = pb->myanmar_position();
-
- return a < b ? -1 : a == b ? 0 : +1;
-}
-
-
-/* Rules from:
- * https://docs.microsoft.com/en-us/typography/script-development/myanmar */
-
-static void
-initial_reordering_consonant_syllable (hb_buffer_t *buffer,
- unsigned int start, unsigned int end)
-{
- hb_glyph_info_t *info = buffer->info;
-
- unsigned int base = end;
- bool has_reph = false;
-
- {
- unsigned int limit = start;
- if (start + 3 <= end &&
- info[start ].myanmar_category() == OT_Ra &&
- info[start+1].myanmar_category() == OT_As &&
- info[start+2].myanmar_category() == OT_H)
- {
- limit += 3;
- base = start;
- has_reph = true;
- }
-
- {
- if (!has_reph)
- base = limit;
-
- for (unsigned int i = limit; i < end; i++)
- if (is_consonant (info[i]))
- {
- base = i;
- break;
- }
- }
- }
-
- /* Reorder! */
- {
- unsigned int i = start;
- for (; i < start + (has_reph ? 3 : 0); i++)
- info[i].myanmar_position() = POS_AFTER_MAIN;
- for (; i < base; i++)
- info[i].myanmar_position() = POS_PRE_C;
- if (i < end)
- {
- info[i].myanmar_position() = POS_BASE_C;
- i++;
- }
- myanmar_position_t pos = POS_AFTER_MAIN;
- /* The following loop may be ugly, but it implements all of
- * Myanmar reordering! */
- for (; i < end; i++)
- {
- if (info[i].myanmar_category() == OT_MR) /* Pre-base reordering */
- {
- info[i].myanmar_position() = POS_PRE_C;
- continue;
- }
- if (info[i].myanmar_position() < POS_BASE_C) /* Left matra */
- {
- continue;
- }
- if (info[i].myanmar_category() == OT_VS)
- {
- info[i].myanmar_position() = info[i - 1].myanmar_position();
- continue;
- }
-
- if (pos == POS_AFTER_MAIN && info[i].myanmar_category() == OT_VBlw)
- {
- pos = POS_BELOW_C;
- info[i].myanmar_position() = pos;
- continue;
- }
-
- if (pos == POS_BELOW_C && info[i].myanmar_category() == OT_A)
- {
- info[i].myanmar_position() = POS_BEFORE_SUB;
- continue;
- }
- if (pos == POS_BELOW_C && info[i].myanmar_category() == OT_VBlw)
- {
- info[i].myanmar_position() = pos;
- continue;
- }
- if (pos == POS_BELOW_C && info[i].myanmar_category() != OT_A)
- {
- pos = POS_AFTER_SUB;
- info[i].myanmar_position() = pos;
- continue;
- }
- info[i].myanmar_position() = pos;
- }
- }
-
- /* Sit tight, rock 'n roll! */
- buffer->sort (start, end, compare_myanmar_order);
-}
-
-static void
-reorder_syllable_myanmar (const hb_ot_shape_plan_t *plan HB_UNUSED,
- hb_face_t *face HB_UNUSED,
- hb_buffer_t *buffer,
- unsigned int start, unsigned int end)
-{
- myanmar_syllable_type_t syllable_type = (myanmar_syllable_type_t) (buffer->info[start].syllable() & 0x0F);
- switch (syllable_type) {
-
- case myanmar_broken_cluster: /* We already inserted dotted-circles, so just call the consonant_syllable. */
- case myanmar_consonant_syllable:
- initial_reordering_consonant_syllable (buffer, start, end);
- break;
-
- case myanmar_punctuation_cluster:
- case myanmar_non_myanmar_cluster:
- break;
- }
-}
-
-static void
-reorder_myanmar (const hb_ot_shape_plan_t *plan,
- hb_font_t *font,
- hb_buffer_t *buffer)
-{
- if (buffer->message (font, "start reordering myanmar"))
- {
- hb_syllabic_insert_dotted_circles (font, buffer,
- myanmar_broken_cluster,
- OT_GB);
-
- foreach_syllable (buffer, start, end)
- reorder_syllable_myanmar (plan, font->face, buffer, start, end);
- (void) buffer->message (font, "end reordering myanmar");
- }
-
- HB_BUFFER_DEALLOCATE_VAR (buffer, myanmar_category);
- HB_BUFFER_DEALLOCATE_VAR (buffer, myanmar_position);
-}
-
-
-const hb_ot_complex_shaper_t _hb_ot_complex_shaper_myanmar =
-{
- collect_features_myanmar,
- nullptr, /* override_features */
- nullptr, /* data_create */
- nullptr, /* data_destroy */
- nullptr, /* preprocess_text */
- nullptr, /* postprocess_glyphs */
- HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS_NO_SHORT_CIRCUIT,
- nullptr, /* decompose */
- nullptr, /* compose */
- setup_masks_myanmar,
- HB_TAG_NONE, /* gpos_tag */
- nullptr, /* reorder_marks */
- HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_EARLY,
- false, /* fallback_position */
-};
-
-
-/* Ugly Zawgyi encoding.
- * Disable all auto processing.
- * https://github.com/harfbuzz/harfbuzz/issues/1162 */
-const hb_ot_complex_shaper_t _hb_ot_complex_shaper_myanmar_zawgyi =
-{
- nullptr, /* collect_features */
- nullptr, /* override_features */
- nullptr, /* data_create */
- nullptr, /* data_destroy */
- nullptr, /* preprocess_text */
- nullptr, /* postprocess_glyphs */
- HB_OT_SHAPE_NORMALIZATION_MODE_NONE,
- nullptr, /* decompose */
- nullptr, /* compose */
- nullptr, /* setup_masks */
- HB_TAG_NONE, /* gpos_tag */
- nullptr, /* reorder_marks */
- HB_OT_SHAPE_ZERO_WIDTH_MARKS_NONE,
- false, /* fallback_position */
-};
-
-
-#endif
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