2 * Copyright © 2009 Red Hat, 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 * Red Hat Author(s): Behdad Esfahbod
27 #include "hb-private.hh"
31 #include "hb-buffer-private.hh"
33 #include "hb-ot-shape.h"
36 #include "hb-graphite.h"
43 hb_shape_internal (hb_font_t *font,
45 const hb_feature_t *features,
46 unsigned int num_features)
48 hb_ot_shape (font, buffer, features, num_features);
52 hb_shape (hb_font_t *font,
54 const hb_feature_t *features,
55 unsigned int num_features)
57 hb_segment_properties_t orig_props;
59 orig_props = buffer->props;
61 /* If script is set to INVALID, guess from buffer contents */
62 if (buffer->props.script == HB_SCRIPT_INVALID) {
63 hb_unicode_funcs_t *unicode = buffer->unicode;
64 unsigned int count = buffer->len;
65 for (unsigned int i = 0; i < count; i++) {
66 hb_script_t script = unicode->get_script (buffer->info[i].codepoint);
67 if (likely (script != HB_SCRIPT_COMMON &&
68 script != HB_SCRIPT_INHERITED &&
69 script != HB_SCRIPT_UNKNOWN)) {
70 buffer->props.script = script;
76 /* If direction is set to INVALID, guess from script */
77 if (buffer->props.direction == HB_DIRECTION_INVALID) {
78 buffer->props.direction = hb_script_get_horizontal_direction (buffer->props.script);
81 /* If language is not set, use default language from locale */
82 if (buffer->props.language == NULL) {
83 /* TODO get_default_for_script? using $LANGUAGE */
84 buffer->props.language = hb_language_get_default ();
87 hb_shape_internal (font, buffer, features, num_features);
89 buffer->props = orig_props;