diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-hangul.cc')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-hangul.cc | 60 |
1 files changed, 34 insertions, 26 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-hangul.cc b/src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-hangul.cc index 7508c223c4..f5915f43ae 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-hangul.cc +++ b/src/3rdparty/harfbuzz-ng/src/hb-ot-shape-complex-hangul.cc @@ -24,7 +24,11 @@ * Google Author(s): Behdad Esfahbod */ -#include "hb-ot-shape-complex-private.hh" +#include "hb.hh" + +#ifndef HB_NO_OT_SHAPE + +#include "hb-ot-shape-complex.hh" /* Hangul shaper */ @@ -56,7 +60,7 @@ collect_features_hangul (hb_ot_shape_planner_t *plan) hb_ot_map_builder_t *map = &plan->map; for (unsigned int i = FIRST_HANGUL_FEATURE; i < HANGUL_FEATURE_COUNT; i++) - map->add_feature (hangul_features[i], 1, F_NONE); + map->add_feature (hangul_features[i]); } static void @@ -65,13 +69,11 @@ override_features_hangul (hb_ot_shape_planner_t *plan) /* Uniscribe does not apply 'calt' for Hangul, and certain fonts * (Noto Sans CJK, Source Sans Han, etc) apply all of jamo lookups * in calt, which is not desirable. */ - plan->map.add_feature (HB_TAG('c','a','l','t'), 0, F_GLOBAL); + plan->map.disable_feature (HB_TAG('c','a','l','t')); } struct hangul_shape_plan_t { - ASSERT_POD (); - hb_mask_t mask_array[HANGUL_FEATURE_COUNT]; }; @@ -128,7 +130,7 @@ is_zero_width_char (hb_font_t *font, } static void -preprocess_text_hangul (const hb_ot_shape_plan_t *plan, +preprocess_text_hangul (const hb_ot_shape_plan_t *plan HB_UNUSED, hb_buffer_t *buffer, hb_font_t *font) { @@ -151,8 +153,8 @@ preprocess_text_hangul (const hb_ot_shape_plan_t *plan, * - <V>: U+1160..11A7, U+D7B0..D7C7 * - <T>: U+11A8..11FF, U+D7CB..D7FB * - * - Only the <L,V> sequences for the 11xx ranges combine. - * - Only <LV,T> sequences for T in U+11A8..11C3 combine. + * - Only the <L,V> sequences for some of the U+11xx ranges combine. + * - Only <LV,T> sequences for some of the Ts in U+11xx range combine. * * Here is what we want to accomplish in this shaper: * @@ -188,7 +190,7 @@ preprocess_text_hangul (const hb_ot_shape_plan_t *plan, */ unsigned int count = buffer->len; - for (buffer->idx = 0; buffer->idx < count && !buffer->in_error;) + for (buffer->idx = 0; buffer->idx < count && buffer->successful;) { hb_codepoint_t u = buffer->cur().codepoint; @@ -202,7 +204,7 @@ preprocess_text_hangul (const hb_ot_shape_plan_t *plan, if (start < end && end == buffer->out_len) { /* Tone mark follows a valid syllable; move it in front, unless it's zero width. */ - buffer->unsafe_to_break_from_outbuffer (start, buffer->idx); + buffer->unsafe_to_break_from_outbuffer (start, buffer->idx); buffer->next_glyph (); if (!is_zero_width_char (font, u)) { @@ -216,7 +218,8 @@ preprocess_text_hangul (const hb_ot_shape_plan_t *plan, else { /* No valid syllable as base for tone mark; try to insert dotted circle. */ - if (font->has_glyph (0x25CCu)) + if (!(buffer->flags & HB_BUFFER_FLAG_DO_NOT_INSERT_DOTTED_CIRCLE) && + font->has_glyph (0x25CCu)) { hb_codepoint_t chars[2]; if (!is_zero_width_char (font, u)) { @@ -269,7 +272,7 @@ preprocess_text_hangul (const hb_ot_shape_plan_t *plan, if (font->has_glyph (s)) { buffer->replace_glyphs (t ? 3 : 2, 1, &s); - if (unlikely (buffer->in_error)) + if (unlikely (!buffer->successful)) return; end = start + 1; continue; @@ -319,7 +322,7 @@ preprocess_text_hangul (const hb_ot_shape_plan_t *plan, if (font->has_glyph (new_s)) { buffer->replace_glyphs (2, 1, &new_s); - if (unlikely (buffer->in_error)) + if (unlikely (!buffer->successful)) return; end = start + 1; continue; @@ -345,29 +348,31 @@ preprocess_text_hangul (const hb_ot_shape_plan_t *plan, { unsigned int s_len = tindex ? 3 : 2; buffer->replace_glyphs (1, s_len, decomposed); - if (unlikely (buffer->in_error)) - return; - - /* We decomposed S: apply jamo features to the individual glyphs - * that are now in buffer->out_info. - */ - hb_glyph_info_t *info = buffer->out_info; /* If we decomposed an LV because of a non-combining T following, * we want to include this T in the syllable. */ if (has_glyph && !tindex) { - buffer->next_glyph (); - s_len++; - } - end = start + s_len; + buffer->next_glyph (); + s_len++; + } + + if (unlikely (!buffer->successful)) + return; + + /* We decomposed S: apply jamo features to the individual glyphs + * that are now in buffer->out_info. + */ + hb_glyph_info_t *info = buffer->out_info; + end = start + s_len; unsigned int i = start; info[i++].hangul_shaping_feature() = LJMO; info[i++].hangul_shaping_feature() = VJMO; if (i < end) info[i++].hangul_shaping_feature() = TJMO; + if (buffer->cluster_level == HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES) buffer->merge_out_clusters (start, end); continue; @@ -378,7 +383,7 @@ preprocess_text_hangul (const hb_ot_shape_plan_t *plan, if (has_glyph) { - /* We didn't decompose the S, so just advance past it. */ + /* We didn't decompose the S, so just advance past it. */ end = start + 1; buffer->next_glyph (); continue; @@ -424,8 +429,11 @@ const hb_ot_complex_shaper_t _hb_ot_complex_shaper_hangul = nullptr, /* decompose */ nullptr, /* compose */ setup_masks_hangul, - nullptr, /* disable_otl */ + HB_TAG_NONE, /* gpos_tag */ nullptr, /* reorder_marks */ HB_OT_SHAPE_ZERO_WIDTH_MARKS_NONE, false, /* fallback_position */ }; + + +#endif |