2 * Copyright (C) 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.h"
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,
46 const hb_feature_t *features,
47 unsigned int num_features)
49 #if 0 && defined(HAVE_GRAPHITE)
51 silf_blob = hb_face_get_table (face, HB_GRAPHITE_TAG_Silf);
52 if (hb_blob_get_length(silf_blob))
54 hb_graphite_shape(font, face, buffer, features, num_features);
55 hb_blob_destroy(silf_blob);
58 hb_blob_destroy(silf_blob);
61 hb_ot_shape (font, face, buffer, features, num_features);
65 hb_shape (hb_font_t *font,
68 const hb_feature_t *features,
69 unsigned int num_features)
71 hb_segment_properties_t orig_props;
73 orig_props = buffer->props;
75 /* If script is set to INVALID, guess from buffer contents */
76 if (buffer->props.script == HB_SCRIPT_INVALID) {
77 hb_unicode_funcs_t *unicode = buffer->unicode;
78 unsigned int count = buffer->len;
79 for (unsigned int i = 0; i < count; i++) {
80 hb_script_t script = unicode->get_script (buffer->info[i].codepoint);
81 if (likely (script != HB_SCRIPT_COMMON &&
82 script != HB_SCRIPT_INHERITED &&
83 script != HB_SCRIPT_UNKNOWN)) {
84 buffer->props.script = script;
90 /* If direction is set to INVALID, guess from script */
91 if (buffer->props.direction == HB_DIRECTION_INVALID) {
92 buffer->props.direction = hb_script_get_horizontal_direction (buffer->props.script);
95 /* If language is not set, use default language from locale */
96 if (buffer->props.language == NULL) {
97 /* TODO get_default_for_script? using $LANGUAGE */
98 //buffer->props.language = hb_language_get_default ();
101 hb_shape_internal (font, face, buffer, features, num_features);
103 buffer->props = orig_props;