2 * Copyright © 2011 Google, Inc.
4 * This is part of HarfBuzz, a text shaping library.
6 * Permission is hereby granted, without written agreement and without
7 * license or royalty fees, to use, copy, modify, and distribute this
8 * software and its documentation for any purpose, provided that the
9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
24 * Google Author(s): Behdad Esfahbod
27 #include "hb-ot-shape-private.hh"
32 get_glyph (hb_ot_shape_context_t *c, unsigned int i)
34 hb_buffer_t *b = c->buffer;
36 return hb_font_get_glyph (c->font, b->info[i].codepoint, 0, &b->info[i].intermittent_glyph());
40 handle_single_char_cluster (hb_ot_shape_context_t *c,
52 handle_multi_char_cluster (hb_ot_shape_context_t *c,
56 /* If there's a variation-selector, give-up, it's just too hard. */
61 _hb_normalize (hb_ot_shape_context_t *c)
63 hb_buffer_t *b = c->buffer;
66 unsigned int count = b->len;
67 for (unsigned int i = 0; i < count;) {
69 for (end = i + 1; end < count; end++)
70 if (b->info[i].cluster != b->info[end].cluster)
73 changed |= handle_single_char_cluster (c, i);
75 changed |= handle_multi_char_cluster (c, i, end);