From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- gfx/harfbuzz/src/hb-ot-shaper-syllabic.cc | 100 ++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 gfx/harfbuzz/src/hb-ot-shaper-syllabic.cc (limited to 'gfx/harfbuzz/src/hb-ot-shaper-syllabic.cc') diff --git a/gfx/harfbuzz/src/hb-ot-shaper-syllabic.cc b/gfx/harfbuzz/src/hb-ot-shaper-syllabic.cc new file mode 100644 index 0000000000..89226ae4a1 --- /dev/null +++ b/gfx/harfbuzz/src/hb-ot-shaper-syllabic.cc @@ -0,0 +1,100 @@ +/* + * Copyright © 2021 Behdad Esfahbod. + * + * 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. + */ + +#include "hb.hh" + +#ifndef HB_NO_OT_SHAPE + +#include "hb-ot-shaper-syllabic.hh" + + +bool +hb_syllabic_insert_dotted_circles (hb_font_t *font, + hb_buffer_t *buffer, + unsigned int broken_syllable_type, + unsigned int dottedcircle_category, + int repha_category, + int dottedcircle_position) +{ + if (unlikely (buffer->flags & HB_BUFFER_FLAG_DO_NOT_INSERT_DOTTED_CIRCLE)) + return false; + if (likely (!(buffer->scratch_flags & HB_BUFFER_SCRATCH_FLAG_HAS_BROKEN_SYLLABLE))) + return false; + + hb_codepoint_t dottedcircle_glyph; + if (!font->get_nominal_glyph (0x25CCu, &dottedcircle_glyph)) + return false; + + hb_glyph_info_t dottedcircle = {0}; + dottedcircle.codepoint = 0x25CCu; + dottedcircle.ot_shaper_var_u8_category() = dottedcircle_category; + if (dottedcircle_position != -1) + dottedcircle.ot_shaper_var_u8_auxiliary() = dottedcircle_position; + dottedcircle.codepoint = dottedcircle_glyph; + + buffer->clear_output (); + + buffer->idx = 0; + unsigned int last_syllable = 0; + while (buffer->idx < buffer->len && buffer->successful) + { + unsigned int syllable = buffer->cur().syllable(); + if (unlikely (last_syllable != syllable && (syllable & 0x0F) == broken_syllable_type)) + { + 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. */ + if (repha_category != -1) + { + while (buffer->idx < buffer->len && buffer->successful && + last_syllable == buffer->cur().syllable() && + buffer->cur().ot_shaper_var_u8_category() == (unsigned) repha_category) + (void) buffer->next_glyph (); + } + + (void) buffer->output_info (ginfo); + } + else + (void) buffer->next_glyph (); + } + buffer->sync (); + return true; +} + +HB_INTERNAL bool +hb_syllabic_clear_var (const hb_ot_shape_plan_t *plan, + hb_font_t *font, + hb_buffer_t *buffer) +{ + HB_BUFFER_DEALLOCATE_VAR (buffer, syllable); + return false; +} + + +#endif -- cgit v1.2.3