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-rw-r--r--src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-myanmar.cc547
1 files changed, 0 insertions, 547 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-myanmar.cc b/src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-myanmar.cc
deleted file mode 100644
index 5ea1dbff27..0000000000
--- a/src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-myanmar.cc
+++ /dev/null
@@ -1,547 +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-ot-shape-complex-indic-private.hh"
-
-/* buffer var allocations */
-#define myanmar_category() complex_var_u8_0() /* myanmar_category_t */
-#define myanmar_position() complex_var_u8_1() /* myanmar_position_t */
-
-
-/*
- * Myanmar shaper.
- */
-
-static const hb_tag_t
-basic_features[] =
-{
- /*
- * Basic features.
- * These features are applied in order, one at a time, after initial_reordering.
- */
- 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
-other_features[] =
-{
- /*
- * Other features.
- * These features are applied all at once, after final_reordering.
- */
- HB_TAG('p','r','e','s'),
- HB_TAG('a','b','v','s'),
- HB_TAG('b','l','w','s'),
- HB_TAG('p','s','t','s'),
- /* Positioning features, though we don't care about the types. */
- HB_TAG('d','i','s','t'),
- /* Pre-release version of Windows 8 Myanmar font had abvm,blwm
- * features. The released Windows 8 version of the font (as well
- * as the released spec) used 'mark' instead. The Windows 8
- * shaper however didn't apply 'mark' but did apply 'mkmk'.
- * Perhaps it applied abvm/blwm. This was fixed in a Windows 8
- * update, so now it applies mark/mkmk. We are guessing that
- * it still applies abvm/blwm too.
- */
- HB_TAG('a','b','v','m'),
- HB_TAG('b','l','w','m'),
-};
-
-static void
-setup_syllables (const hb_ot_shape_plan_t *plan,
- hb_font_t *font,
- hb_buffer_t *buffer);
-static void
-initial_reordering (const hb_ot_shape_plan_t *plan,
- hb_font_t *font,
- hb_buffer_t *buffer);
-static void
-final_reordering (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);
-
- map->add_global_bool_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->add_global_bool_feature (HB_TAG('c','c','m','p'));
-
-
- map->add_gsub_pause (initial_reordering);
- for (unsigned int i = 0; i < ARRAY_LENGTH (basic_features); i++)
- {
- map->add_feature (basic_features[i], 1, F_GLOBAL | F_MANUAL_ZWJ);
- map->add_gsub_pause (nullptr);
- }
- map->add_gsub_pause (final_reordering);
- for (unsigned int i = 0; i < ARRAY_LENGTH (other_features); i++)
- map->add_feature (other_features[i], 1, F_GLOBAL | F_MANUAL_ZWJ);
-}
-
-static void
-override_features_myanmar (hb_ot_shape_planner_t *plan)
-{
- plan->map.add_feature (HB_TAG('l','i','g','a'), 0, F_GLOBAL);
-}
-
-
-enum syllable_type_t {
- consonant_syllable,
- punctuation_cluster,
- broken_cluster,
- non_myanmar_cluster,
-};
-
-#include "hb-ot-shape-complex-myanmar-machine.hh"
-
-
-/* Note: This enum is duplicated in the -machine.rl source file.
- * Not sure how to avoid duplication. */
-enum myanmar_category_t {
- OT_As = 18, /* Asat */
- OT_D0 = 20, /* Digit zero */
- OT_DB = OT_N, /* Dot below */
- OT_GB = OT_PLACEHOLDER,
- OT_MH = 21, /* Various consonant medial types */
- OT_MR = 22, /* Various consonant medial types */
- OT_MW = 23, /* Various consonant medial types */
- OT_MY = 24, /* Various consonant medial types */
- OT_PT = 25, /* Pwo and other tones */
- OT_VAbv = 26,
- OT_VBlw = 27,
- OT_VPre = 28,
- OT_VPst = 29,
- OT_VS = 30, /* Variation selectors */
- OT_P = 31, /* Punctuation */
- OT_D = 32, /* Digits except zero */
-};
-
-
-static inline bool
-is_one_of (const hb_glyph_info_t &info, unsigned int flags)
-{
- /* If it ligated, all bets are off. */
- if (_hb_glyph_info_ligated (&info)) return false;
- return !!(FLAG_UNSAFE (info.myanmar_category()) & flags);
-}
-
-static inline bool
-is_consonant (const hb_glyph_info_t &info)
-{
- return is_one_of (info, CONSONANT_FLAGS);
-}
-
-
-static inline void
-set_myanmar_properties (hb_glyph_info_t &info)
-{
- hb_codepoint_t u = info.codepoint;
- unsigned int type = hb_indic_get_categories (u);
- indic_category_t cat = (indic_category_t) (type & 0x7Fu);
- indic_position_t pos = (indic_position_t) (type >> 8);
-
- /* Myanmar
- * http://www.microsoft.com/typography/OpenTypeDev/myanmar/intro.htm#analyze
- */
- if (unlikely (hb_in_range<hb_codepoint_t> (u, 0xFE00u, 0xFE0Fu)))
- cat = (indic_category_t) OT_VS;
-
- switch (u)
- {
- case 0x104Eu:
- cat = (indic_category_t) OT_C; /* The spec says C, IndicSyllableCategory doesn't have. */
- break;
-
- case 0x002Du: case 0x00A0u: case 0x00D7u: case 0x2012u:
- case 0x2013u: case 0x2014u: case 0x2015u: case 0x2022u:
- case 0x25CCu: case 0x25FBu: case 0x25FCu: case 0x25FDu:
- case 0x25FEu:
- cat = (indic_category_t) OT_GB;
- break;
-
- case 0x1004u: case 0x101Bu: case 0x105Au:
- cat = (indic_category_t) OT_Ra;
- break;
-
- case 0x1032u: case 0x1036u:
- cat = (indic_category_t) OT_A;
- break;
-
- case 0x1039u:
- cat = (indic_category_t) OT_H;
- break;
-
- case 0x103Au:
- cat = (indic_category_t) OT_As;
- break;
-
- case 0x1041u: case 0x1042u: case 0x1043u: case 0x1044u:
- case 0x1045u: case 0x1046u: case 0x1047u: case 0x1048u:
- case 0x1049u: case 0x1090u: case 0x1091u: case 0x1092u:
- case 0x1093u: case 0x1094u: case 0x1095u: case 0x1096u:
- case 0x1097u: case 0x1098u: case 0x1099u:
- cat = (indic_category_t) OT_D;
- break;
-
- case 0x1040u:
- cat = (indic_category_t) OT_D; /* XXX The spec says D0, but Uniscribe doesn't seem to do. */
- break;
-
- case 0x103Eu: case 0x1060u:
- cat = (indic_category_t) OT_MH;
- break;
-
- case 0x103Cu:
- cat = (indic_category_t) OT_MR;
- break;
-
- case 0x103Du: case 0x1082u:
- cat = (indic_category_t) OT_MW;
- break;
-
- case 0x103Bu: case 0x105Eu: case 0x105Fu:
- cat = (indic_category_t) OT_MY;
- break;
-
- case 0x1063u: case 0x1064u: case 0x1069u: case 0x106Au:
- case 0x106Bu: case 0x106Cu: case 0x106Du: case 0xAA7Bu:
- cat = (indic_category_t) OT_PT;
- break;
-
- case 0x1038u: case 0x1087u: case 0x1088u: case 0x1089u:
- case 0x108Au: case 0x108Bu: case 0x108Cu: case 0x108Du:
- case 0x108Fu: case 0x109Au: case 0x109Bu: case 0x109Cu:
- cat = (indic_category_t) OT_SM;
- break;
-
- case 0x104Au: case 0x104Bu:
- cat = (indic_category_t) OT_P;
- break;
-
- case 0xAA74u: case 0xAA75u: case 0xAA76u:
- /* https://github.com/roozbehp/unicode-data/issues/3 */
- cat = (indic_category_t) OT_C;
- break;
- }
-
- if (cat == OT_M)
- {
- switch ((int) pos)
- {
- case POS_PRE_C: cat = (indic_category_t) OT_VPre;
- pos = POS_PRE_M; break;
- case POS_ABOVE_C: cat = (indic_category_t) OT_VAbv; break;
- case POS_BELOW_C: cat = (indic_category_t) OT_VBlw; break;
- case POS_POST_C: cat = (indic_category_t) OT_VPst; break;
- }
- }
-
- info.myanmar_category() = (myanmar_category_t) cat;
- info.myanmar_position() = pos;
-}
-
-
-
-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 (const hb_ot_shape_plan_t *plan HB_UNUSED,
- hb_font_t *font HB_UNUSED,
- hb_buffer_t *buffer)
-{
- find_syllables (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:
- * http://www.microsoft.com/typography/OpenTypeDev/myanmar/intro.htm */
-
-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++;
- }
- indic_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 (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
-initial_reordering_syllable (const hb_ot_shape_plan_t *plan,
- hb_face_t *face,
- hb_buffer_t *buffer,
- unsigned int start, unsigned int end)
-{
- syllable_type_t syllable_type = (syllable_type_t) (buffer->info[start].syllable() & 0x0F);
- switch (syllable_type) {
-
- case broken_cluster: /* We already inserted dotted-circles, so just call the consonant_syllable. */
- case consonant_syllable:
- initial_reordering_consonant_syllable (buffer, start, end);
- break;
-
- case punctuation_cluster:
- case non_myanmar_cluster:
- break;
- }
-}
-
-static inline void
-insert_dotted_circles (const hb_ot_shape_plan_t *plan HB_UNUSED,
- hb_font_t *font,
- hb_buffer_t *buffer)
-{
- /* Note: This loop is extra overhead, but should not be measurable. */
- 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) == broken_cluster)
- {
- has_broken_syllables = true;
- break;
- }
- if (likely (!has_broken_syllables))
- return;
-
-
- hb_codepoint_t dottedcircle_glyph;
- if (!font->get_nominal_glyph (0x25CCu, &dottedcircle_glyph))
- return;
-
- hb_glyph_info_t dottedcircle = {0};
- dottedcircle.codepoint = 0x25CCu;
- set_myanmar_properties (dottedcircle);
- dottedcircle.codepoint = dottedcircle_glyph;
-
- buffer->clear_output ();
-
- buffer->idx = 0;
- unsigned int last_syllable = 0;
- while (buffer->idx < buffer->len && !buffer->in_error)
- {
- unsigned int syllable = buffer->cur().syllable();
- syllable_type_t syllable_type = (syllable_type_t) (syllable & 0x0F);
- if (unlikely (last_syllable != syllable && syllable_type == 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();
-
- buffer->output_info (ginfo);
- }
- else
- buffer->next_glyph ();
- }
-
- buffer->swap_buffers ();
-}
-
-static void
-initial_reordering (const hb_ot_shape_plan_t *plan,
- hb_font_t *font,
- hb_buffer_t *buffer)
-{
- insert_dotted_circles (plan, font, buffer);
-
- foreach_syllable (buffer, start, end)
- initial_reordering_syllable (plan, font->face, buffer, start, end);
-}
-
-static void
-final_reordering (const hb_ot_shape_plan_t *plan,
- hb_font_t *font HB_UNUSED,
- hb_buffer_t *buffer)
-{
- hb_glyph_info_t *info = buffer->info;
- unsigned int count = buffer->len;
-
- /* Zero syllables now... */
- for (unsigned int i = 0; i < count; i++)
- info[i].syllable() = 0;
-
- HB_BUFFER_DEALLOCATE_VAR (buffer, myanmar_category);
- HB_BUFFER_DEALLOCATE_VAR (buffer, myanmar_position);
-}
-
-
-/* Uniscribe seems to have a shaper for 'mymr' that is like the
- * generic shaper, except that it zeros mark advances GDEF_LATE. */
-const hb_ot_complex_shaper_t _hb_ot_complex_shaper_myanmar_old =
-{
- nullptr, /* collect_features */
- nullptr, /* override_features */
- nullptr, /* data_create */
- nullptr, /* data_destroy */
- nullptr, /* preprocess_text */
- nullptr, /* postprocess_glyphs */
- HB_OT_SHAPE_NORMALIZATION_MODE_DEFAULT,
- nullptr, /* decompose */
- nullptr, /* compose */
- nullptr, /* setup_masks */
- nullptr, /* disable_otl */
- nullptr, /* reorder_marks */
- HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_LATE,
- true, /* fallback_position */
-};
-
-const hb_ot_complex_shaper_t _hb_ot_complex_shaper_myanmar =
-{
- collect_features_myanmar,
- override_features_myanmar,
- 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,
- nullptr, /* disable_otl */
- nullptr, /* reorder_marks */
- HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_EARLY,
- false, /* fallback_position */
-};
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