hb-ot-shape.cc revision e53d77142ac4ecbe38ab3235491fa93cb7ff16ab
12014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod/* 22014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * Copyright (C) 2009 Red Hat, Inc. 32014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * 4c755cb3e3ac55156d0d2ec05adea7a650b97cc41Behdad Esfahbod * This is part of HarfBuzz, a text shaping library. 52014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * 62014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * Permission is hereby granted, without written agreement and without 72014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * license or royalty fees, to use, copy, modify, and distribute this 82014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * software and its documentation for any purpose, provided that the 92014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * above copyright notice and the following two paragraphs appear in 102014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * all copies of this software. 112014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * 122014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR 132014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 142014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN 152014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 162014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * DAMAGE. 172014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * 182014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, 192014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 202014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 212014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO 222014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 232014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * 242014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * Red Hat Author(s): Behdad Esfahbod 252014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod */ 262014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 2722da7fd94d6318c52df69d70470a85464ffc533dBehdad Esfahbod#include "hb-ot-shape-private.hh" 282014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 2922da7fd94d6318c52df69d70470a85464ffc533dBehdad Esfahbod#include "hb-buffer-private.hh" 302014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 312014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod#include "hb-ot-layout.h" 322014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 332014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbodhb_tag_t default_features[] = { 342014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod /* GSUB */ 352014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod HB_TAG('c','c','m','p'), 362014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod HB_TAG('l','o','c','l'), 372014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod HB_TAG('l','i','g','a'), 382014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod HB_TAG('c','l','i','g'), 392014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod /* GPOS */ 402014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod HB_TAG('k','e','r','n'), 412014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod HB_TAG('m','a','r','k'), 422014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod HB_TAG('m','k','m','k'), 432014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod}; 442014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 456b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbodstruct lookup_map { 466b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod unsigned int index; 476b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod hb_mask_t mask; 486b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod}; 496b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod 502014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 512014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbodstatic void 522014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbodadd_feature (hb_face_t *face, 532014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_tag_t table_tag, 542014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int feature_index, 556b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod hb_mask_t mask, 566b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod lookup_map *lookups, 572014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int *num_lookups, 582014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int room_lookups) 592014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod{ 602014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int i = room_lookups - *num_lookups; 616b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod lookups += *num_lookups; 626b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod 636b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod unsigned int *lookup_indices = (unsigned int *) lookups; 646b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod 652014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_ot_layout_feature_get_lookup_indexes (face, table_tag, feature_index, 0, 662014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod &i, 676b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod lookup_indices); 686b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod 692014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod *num_lookups += i; 706b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod 716b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod while (i--) { 726b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod lookups[i].mask = mask; 736b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod lookups[i].index = lookup_indices[i]; 746b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod } 752014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod} 762014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 772014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbodstatic int 782014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbodcmp_lookups (const void *p1, const void *p2) 792014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod{ 806b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod const lookup_map *a = (const lookup_map *) p1; 816b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod const lookup_map *b = (const lookup_map *) p2; 822014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 836b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod return a->index - b->index; 842014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod} 852014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 862014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbodstatic void 874206e9511a222c0c50cc9b4fe72ec421983bba2cBehdad Esfahbodsetup_lookups (hb_face_t *face, 882014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_buffer_t *buffer, 892014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_feature_t *features, 902014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int num_features, 912014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_tag_t table_tag, 926b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod lookup_map *lookups, 932014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int *num_lookups) 942014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod{ 952014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int i, j, script_index, language_index, feature_index, room_lookups; 962014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 972014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod room_lookups = *num_lookups; 982014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod *num_lookups = 0; 992014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 1002014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_ot_layout_table_choose_script (face, table_tag, 1012014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_ot_tags_from_script (buffer->script), 1022014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod &script_index); 1032014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_ot_layout_script_find_language (face, table_tag, script_index, 1042014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_ot_tag_from_language (buffer->language), 1052014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod &language_index); 1062014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 1072014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod if (hb_ot_layout_language_get_required_feature_index (face, table_tag, script_index, language_index, 1082014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod &feature_index)) 1096b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod add_feature (face, table_tag, feature_index, 1, lookups, num_lookups, room_lookups); 1102014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 1112014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod for (i = 0; i < ARRAY_LENGTH (default_features); i++) 1122014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod { 1132014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod if (hb_ot_layout_language_find_feature (face, table_tag, script_index, language_index, 1142014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod default_features[i], 1152014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod &feature_index)) 1166b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod add_feature (face, table_tag, feature_index, 1, lookups, num_lookups, room_lookups); 1172014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod } 1182014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 1196774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod /* Clear buffer masks. */ 1206774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod unsigned int count = buffer->len; 1216774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod for (unsigned int i = 0; i < count; i++) 1226774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod buffer->info[i].mask = 1; 1236774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod 1246774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod unsigned int last_bit_used = 1; 125e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod unsigned int global_values = 0; 1267f411dbfd9f8d5360c948531ff9f6c3998d1d897Behdad Esfahbod for (i = 0; i < num_features; i++) 1277f411dbfd9f8d5360c948531ff9f6c3998d1d897Behdad Esfahbod { 1286774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod unsigned int bits_needed = _hb_bit_storage (features[i].value); 1296774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod if (!bits_needed) 1306774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod continue; 1316774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod unsigned int mask = (1 << (last_bit_used + bits_needed)) - (1 << last_bit_used); 1326774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod unsigned int value = features[i].value << last_bit_used; 1336774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod last_bit_used += bits_needed; 1346774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod 1357f411dbfd9f8d5360c948531ff9f6c3998d1d897Behdad Esfahbod if (hb_ot_layout_language_find_feature (face, table_tag, script_index, language_index, 1367f411dbfd9f8d5360c948531ff9f6c3998d1d897Behdad Esfahbod features[i].tag, 1377f411dbfd9f8d5360c948531ff9f6c3998d1d897Behdad Esfahbod &feature_index)) 1386774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod add_feature (face, table_tag, feature_index, mask, lookups, num_lookups, room_lookups); 1396774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod 140e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod if (features[i].start == 0 && features[i].end == (unsigned int)-1) 141e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod global_values |= value; 142e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod else 143e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod { 144e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod unsigned int start = features[i].start, end = features[i].end; 145e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod unsigned int a = 0, b = buffer->len; 146e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod while (a < b) 147e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod { 148e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod unsigned int h = a + ((b - a) / 2); 149e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod if (buffer->info[h].cluster < start) 150e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod a = h + 1; 151e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod else 152e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod b = h; 153e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod } 154e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod unsigned int count = buffer->len; 155e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod for (unsigned int j = a; j < count && buffer->info[j].cluster < end; j++) 156e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod buffer->info[j].mask |= value; 1576774463883978b00b4d8c719ed75edfc4537c77fBehdad Esfahbod } 1587f411dbfd9f8d5360c948531ff9f6c3998d1d897Behdad Esfahbod } 1597f411dbfd9f8d5360c948531ff9f6c3998d1d897Behdad Esfahbod 160e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod if (global_values) 161e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod { 162e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod unsigned int count = buffer->len; 163e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod for (unsigned int j = 0; j < count; j++) 164e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod buffer->info[j].mask |= global_values; 165e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod } 166e53d77142ac4ecbe38ab3235491fa93cb7ff16abBehdad Esfahbod 1672014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod qsort (lookups, *num_lookups, sizeof (lookups[0]), cmp_lookups); 1682014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 1692014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod if (*num_lookups) 1702014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod { 1712014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod for (i = 1, j = 0; i < *num_lookups; i++) 1726b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod if (lookups[i].index != lookups[j].index) 1732014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod lookups[++j] = lookups[i]; 1746b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod else 1756b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod lookups[j].mask |= lookups[i].mask; 1766b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod j++; 1772014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod *num_lookups = j; 1782014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod } 1792014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod} 1802014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 1812014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 1822f78c17197892b2bdc2f64caeb1c1c806ef44545Behdad Esfahbodhb_bool_t 18333d13fdda99acaeffa9600737e8870278d053ebeBehdad Esfahbod_hb_ot_substitute_complex (hb_font_t *font HB_UNUSED, 1842014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_face_t *face, 1852014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_buffer_t *buffer, 1862014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_feature_t *features, 1872014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int num_features) 1882014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod{ 1896b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod lookup_map lookups[1000]; 1902014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int num_lookups = ARRAY_LENGTH (lookups); 1912014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int i; 1922014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 1932014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod if (!hb_ot_layout_has_substitution (face)) 1942014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod return FALSE; 1952014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 1964206e9511a222c0c50cc9b4fe72ec421983bba2cBehdad Esfahbod setup_lookups (face, buffer, features, num_features, 1972014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod HB_OT_TAG_GSUB, 1982014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod lookups, &num_lookups); 1992014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 2002014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod for (i = 0; i < num_lookups; i++) 2016b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod hb_ot_layout_substitute_lookup (face, buffer, lookups[i].index, lookups[i].mask); 2022014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 203e70f45eb522bcb41388cc218b79bbd6aaecf8050Behdad Esfahbod return TRUE; 2042014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod} 2052014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 2062f78c17197892b2bdc2f64caeb1c1c806ef44545Behdad Esfahbodhb_bool_t 2072014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod_hb_ot_position_complex (hb_font_t *font, 2082014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_face_t *face, 2092014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_buffer_t *buffer, 2102014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_feature_t *features, 2112014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int num_features) 2122014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod{ 2136b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod lookup_map lookups[1000]; 2142014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int num_lookups = ARRAY_LENGTH (lookups); 2152014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod unsigned int i; 2162014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 2172014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod if (!hb_ot_layout_has_positioning (face)) 2182014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod return FALSE; 2192014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 2204206e9511a222c0c50cc9b4fe72ec421983bba2cBehdad Esfahbod setup_lookups (face, buffer, features, num_features, 2212014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod HB_OT_TAG_GPOS, 2222014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod lookups, &num_lookups); 2232014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 2242014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod for (i = 0; i < num_lookups; i++) 2256b1b957f6d2955cbe4fa97e2659e033b3eaaf4d2Behdad Esfahbod hb_ot_layout_position_lookup (font, face, buffer, lookups[i].index, lookups[i].mask); 2262014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 2272014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod hb_ot_layout_position_finish (font, face, buffer); 2282014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 229e70f45eb522bcb41388cc218b79bbd6aaecf8050Behdad Esfahbod return TRUE; 2302014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod} 231