hb-ot-shape.cc revision 11138ccff71f442da1fcf64faa0e1d22e083e775
12014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod/* 22409d5f8d7dd8b535ce5ea29e933f7db27d33793Behdad Esfahbod * Copyright © 2009,2010 Red Hat, Inc. 3359dcaa0d33271025ca42a5f54ecbac7ae3b56d3Behdad Esfahbod * Copyright © 2010,2011 Google, Inc. 42014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * 5c755cb3e3ac55156d0d2ec05adea7a650b97cc41Behdad Esfahbod * This is part of HarfBuzz, a text shaping library. 62014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * 72014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * Permission is hereby granted, without written agreement and without 82014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * license or royalty fees, to use, copy, modify, and distribute this 92014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * software and its documentation for any purpose, provided that the 102014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * above copyright notice and the following two paragraphs appear in 112014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * all copies of this software. 122014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * 132014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR 142014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 152014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN 162014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 172014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * DAMAGE. 182014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * 192014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, 202014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 212014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 222014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO 232014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 242014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * 252014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod * Red Hat Author(s): Behdad Esfahbod 26476c94218b4f5b8e119e82b0e10b641e0c10bf56Behdad Esfahbod * Google Author(s): Behdad Esfahbod 272014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod */ 282014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 294924affe0f0adf75f2a0e2137a71206b0576d63fBehdad Esfahbod#include "hb-ot-shape-private.hh" 3013403bc67a01e0d4908fb964093fd02ddd11c580Behdad Esfahbod#include "hb-ot-shape-complex-private.hh" 312014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 3272657e4ce757dcb055a8db7291b68f96f0d34bfbBehdad Esfahbod#include "hb-font-private.hh" 3372657e4ce757dcb055a8db7291b68f96f0d34bfbBehdad Esfahbod 34acdba3f90b232fc12fcb200dca2584481b339118Behdad Esfahbod 35acdba3f90b232fc12fcb200dca2584481b339118Behdad Esfahbod 36f6fd3780e12b23ff7ed3743497c8996e71dcb064Behdad Esfahbodhb_tag_t common_features[] = { 372014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod HB_TAG('c','c','m','p'), 3889a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod HB_TAG('l','o','c','l'), 3989a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod HB_TAG('m','a','r','k'), 4089a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod HB_TAG('m','k','m','k'), 4189a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod HB_TAG('r','l','i','g'), 4289a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod}; 4389a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod 4489a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbodhb_tag_t horizontal_features[] = { 4589a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod HB_TAG('c','a','l','t'), 462014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod HB_TAG('c','l','i','g'), 47bd0987386b3a4dddf208ccf1a70ebfff6242ba73Behdad Esfahbod HB_TAG('c','u','r','s'), 482014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod HB_TAG('k','e','r','n'), 49bd0987386b3a4dddf208ccf1a70ebfff6242ba73Behdad Esfahbod HB_TAG('l','i','g','a'), 5089a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod}; 5189a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod 5289a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod/* Note: 5389a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod * Technically speaking, vrt2 and vert are mutually exclusive. 5489a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod * According to the spec, valt and vpal are also mutually exclusive. 5589a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod * But we apply them all for now. 5689a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod */ 5789a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbodhb_tag_t vertical_features[] = { 5889a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod HB_TAG('v','a','l','t'), 5989a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod HB_TAG('v','e','r','t'), 6089a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod HB_TAG('v','k','r','n'), 6189a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod HB_TAG('v','p','a','l'), 6289a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod HB_TAG('v','r','t','2'), 632014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod}; 642014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 652014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbodstatic void 6690645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbodhb_ot_shape_collect_features (hb_ot_shape_planner_t *planner, 6749baa1f69efb0e3c62e45bd59dd88459a84bf390Behdad Esfahbod const hb_segment_properties_t *props, 6890645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbod const hb_feature_t *user_features, 6990645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbod unsigned int num_user_features) 702014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod{ 71895fb5d364e7ae5d9d2e34b9f68b8651804369efBehdad Esfahbod switch (props->direction) { 720e235d0fc9bdeeaffa7215c21abc5d40767a10c7Behdad Esfahbod case HB_DIRECTION_LTR: 7390645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbod planner->map.add_bool_feature (HB_TAG ('l','t','r','a')); 7490645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbod planner->map.add_bool_feature (HB_TAG ('l','t','r','m')); 750e235d0fc9bdeeaffa7215c21abc5d40767a10c7Behdad Esfahbod break; 760e235d0fc9bdeeaffa7215c21abc5d40767a10c7Behdad Esfahbod case HB_DIRECTION_RTL: 7790645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbod planner->map.add_bool_feature (HB_TAG ('r','t','l','a')); 7890645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbod planner->map.add_bool_feature (HB_TAG ('r','t','l','m'), false); 790e235d0fc9bdeeaffa7215c21abc5d40767a10c7Behdad Esfahbod break; 800e235d0fc9bdeeaffa7215c21abc5d40767a10c7Behdad Esfahbod case HB_DIRECTION_TTB: 810e235d0fc9bdeeaffa7215c21abc5d40767a10c7Behdad Esfahbod case HB_DIRECTION_BTT: 823286fc0e9adc3f2874c9409e7fdb09e4d2b7dda1Behdad Esfahbod case HB_DIRECTION_INVALID: 830e235d0fc9bdeeaffa7215c21abc5d40767a10c7Behdad Esfahbod default: 840e235d0fc9bdeeaffa7215c21abc5d40767a10c7Behdad Esfahbod break; 850e235d0fc9bdeeaffa7215c21abc5d40767a10c7Behdad Esfahbod } 860e235d0fc9bdeeaffa7215c21abc5d40767a10c7Behdad Esfahbod 8789a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod#define ADD_FEATURES(array) \ 8889a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod HB_STMT_START { \ 8989a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod for (unsigned int i = 0; i < ARRAY_LENGTH (array); i++) \ 9089a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod planner->map.add_bool_feature (array[i]); \ 9189a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod } HB_STMT_END 9289a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod 9376f76812ac7cca8ac6935952a2360d5e151480faBehdad Esfahbod hb_ot_shape_complex_collect_features (planner->shaper, &planner->map, props); 94e04685ee7be01695ec437fab50f919f1b7423c57Behdad Esfahbod 9589a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod ADD_FEATURES (common_features); 9689a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod 9789a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod if (HB_DIRECTION_IS_HORIZONTAL (props->direction)) 9889a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod ADD_FEATURES (horizontal_features); 9989a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod else 10089a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod ADD_FEATURES (vertical_features); 10189a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod 10289a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod#undef ADD_FEATURES 10389a2bc9ba674e7e57fec1fd8ce7648a44f3aab63Behdad Esfahbod 104895fb5d364e7ae5d9d2e34b9f68b8651804369efBehdad Esfahbod for (unsigned int i = 0; i < num_user_features; i++) { 105895fb5d364e7ae5d9d2e34b9f68b8651804369efBehdad Esfahbod const hb_feature_t *feature = &user_features[i]; 10690645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbod planner->map.add_feature (feature->tag, feature->value, (feature->start == 0 && feature->end == (unsigned int) -1)); 107e04685ee7be01695ec437fab50f919f1b7423c57Behdad Esfahbod } 108e89b7d2a61b7f58e6c7cec00d5ce2246dee1e8a1Behdad Esfahbod} 109e89b7d2a61b7f58e6c7cec00d5ce2246dee1e8a1Behdad Esfahbod 110e89b7d2a61b7f58e6c7cec00d5ce2246dee1e8a1Behdad Esfahbod 111e89b7d2a61b7f58e6c7cec00d5ce2246dee1e8a1Behdad Esfahbodstatic void 11252601275d5e4000dada4f925fb78723eeeee7bd4Behdad Esfahbodhb_ot_shape_setup_masks (hb_ot_shape_context_t *c) 113e89b7d2a61b7f58e6c7cec00d5ce2246dee1e8a1Behdad Esfahbod{ 114605ed468f380f86d642031f6451447d270cb6de1Behdad Esfahbod hb_mask_t global_mask = c->plan->map.get_global_mask (); 11557ac0ecb7843533b2e6e6d6c8a12b2a44437cc1cBehdad Esfahbod c->buffer->reset_masks (global_mask); 1165b88908f12ad1d828dd6075fb8fc0036c2d6af3aBehdad Esfahbod 117b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod hb_ot_shape_complex_setup_masks (c->plan->shaper, &c->plan->map, c->buffer); 1182989be4919242670c94825bded96db20a7b2035bBehdad Esfahbod 119d2ba016ca1ba7489537768b619980d5159b5870cBehdad Esfahbod for (unsigned int i = 0; i < c->num_user_features; i++) 120efe0d682e860ffd23a1d17c68c8273f17d51c1c9Behdad Esfahbod { 121d2ba016ca1ba7489537768b619980d5159b5870cBehdad Esfahbod const hb_feature_t *feature = &c->user_features[i]; 1224924affe0f0adf75f2a0e2137a71206b0576d63fBehdad Esfahbod if (!(feature->start == 0 && feature->end == (unsigned int)-1)) { 1234924affe0f0adf75f2a0e2137a71206b0576d63fBehdad Esfahbod unsigned int shift; 124605ed468f380f86d642031f6451447d270cb6de1Behdad Esfahbod hb_mask_t mask = c->plan->map.get_mask (feature->tag, &shift); 125bd7378b2ef9793de4e7f57b920f29f48ac9d0c25Behdad Esfahbod c->buffer->set_masks (feature->value << shift, mask, feature->start, feature->end); 1264924affe0f0adf75f2a0e2137a71206b0576d63fBehdad Esfahbod } 127efe0d682e860ffd23a1d17c68c8273f17d51c1c9Behdad Esfahbod } 1282014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod} 1292014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 1302014b8d110231b13e524008282ece7451f1ae9e7Behdad Esfahbod 131ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod/* Main shaper */ 132ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 133ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod/* Prepare */ 134ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 13534c22f816808d061a980cffca12de03beb437fa0Behdad Esfahbodvoid 13634c22f816808d061a980cffca12de03beb437fa0Behdad Esfahbod_hb_set_unicode_props (hb_buffer_t *buffer) 1373a852ae7fe6edfaadd75625d27515a3689503395Behdad Esfahbod{ 138aa7264123a088936f2043b45d4d41ca7413fabe5Behdad Esfahbod unsigned int count = buffer->len; 13945412523dc295cb5ee12e096bfacb282cc925843Behdad Esfahbod for (unsigned int i = 1; i < count; i++) 14045412523dc295cb5ee12e096bfacb282cc925843Behdad Esfahbod hb_glyph_info_set_unicode_props (&buffer->info[i], buffer->unicode); 1413a852ae7fe6edfaadd75625d27515a3689503395Behdad Esfahbod} 1423a852ae7fe6edfaadd75625d27515a3689503395Behdad Esfahbod 1433a852ae7fe6edfaadd75625d27515a3689503395Behdad Esfahbodstatic void 144aa7264123a088936f2043b45d4d41ca7413fabe5Behdad Esfahbodhb_form_clusters (hb_buffer_t *buffer) 145ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod{ 146aa7264123a088936f2043b45d4d41ca7413fabe5Behdad Esfahbod unsigned int count = buffer->len; 147ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod for (unsigned int i = 1; i < count; i++) 148aa7264123a088936f2043b45d4d41ca7413fabe5Behdad Esfahbod if (FLAG (buffer->info[i].general_category()) & 1494a68684654e645882095c1189477146287ce9437Behdad Esfahbod (FLAG (HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK) | 1504a68684654e645882095c1189477146287ce9437Behdad Esfahbod FLAG (HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK) | 151d63adfc7d09b26764d9166da97372b21257e7611Behdad Esfahbod FLAG (HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK))) 152aa7264123a088936f2043b45d4d41ca7413fabe5Behdad Esfahbod buffer->info[i].cluster = buffer->info[i - 1].cluster; 153ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod} 154ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 155967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbodstatic void 156aa7264123a088936f2043b45d4d41ca7413fabe5Behdad Esfahbodhb_ensure_native_direction (hb_buffer_t *buffer) 157ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod{ 158aa7264123a088936f2043b45d4d41ca7413fabe5Behdad Esfahbod hb_direction_t direction = buffer->props.direction; 159ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 1607403e055cd1463f38215ad9faedd61c3e1b66ac5Behdad Esfahbod /* TODO vertical: 1617403e055cd1463f38215ad9faedd61c3e1b66ac5Behdad Esfahbod * The only BTT vertical script is Ogham, but it's not clear to me whether OpenType 1627403e055cd1463f38215ad9faedd61c3e1b66ac5Behdad Esfahbod * Ogham fonts are supposed to be implemented BTT or not. Need to research that 1637403e055cd1463f38215ad9faedd61c3e1b66ac5Behdad Esfahbod * first. */ 164aa7264123a088936f2043b45d4d41ca7413fabe5Behdad Esfahbod if ((HB_DIRECTION_IS_HORIZONTAL (direction) && direction != hb_script_get_horizontal_direction (buffer->props.script)) || 1657403e055cd1463f38215ad9faedd61c3e1b66ac5Behdad Esfahbod (HB_DIRECTION_IS_VERTICAL (direction) && direction != HB_DIRECTION_TTB)) 166ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod { 167aa7264123a088936f2043b45d4d41ca7413fabe5Behdad Esfahbod hb_buffer_reverse_clusters (buffer); 168aa7264123a088936f2043b45d4d41ca7413fabe5Behdad Esfahbod buffer->props.direction = HB_DIRECTION_REVERSE (buffer->props.direction); 169ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod } 170ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod} 171ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 172ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 173ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod/* Substitute */ 174ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 175ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbodstatic void 176aa9c450bb2d7c3c9e36ea32e3558250391a0582dBehdad Esfahbodhb_mirror_chars (hb_ot_shape_context_t *c) 177ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod{ 178fb194b8794898f51eb596fa4092c26606889d376Behdad Esfahbod hb_unicode_funcs_t *unicode = c->buffer->unicode; 179ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 180bbbbe80ec9bc45c5b685bc09c8f993e98496555cBehdad Esfahbod if (HB_DIRECTION_IS_FORWARD (c->target_direction)) 181ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod return; 182ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 18339dede9ffffe732f78cbd092ccb3b48d77ddd66dBehdad Esfahbod hb_mask_t rtlm_mask = c->plan->map.get_1_mask (HB_TAG ('r','t','l','m')); 1844e4ef24e46f273ad2bdda2f718223e05b37dd50fBehdad Esfahbod 185aa9c450bb2d7c3c9e36ea32e3558250391a0582dBehdad Esfahbod unsigned int count = c->buffer->len; 186ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod for (unsigned int i = 0; i < count; i++) { 187c4641723fbf6532b2e80a662e15573b31276bc73Behdad Esfahbod hb_codepoint_t codepoint = hb_unicode_mirroring (unicode, c->buffer->info[i].codepoint); 188aa9c450bb2d7c3c9e36ea32e3558250391a0582dBehdad Esfahbod if (likely (codepoint == c->buffer->info[i].codepoint)) 189bd7378b2ef9793de4e7f57b920f29f48ac9d0c25Behdad Esfahbod c->buffer->info[i].mask |= rtlm_mask; /* XXX this should be moved to before setting user-feature masks */ 1901094a294f6a44c47fc75867983f2b135a6442babBehdad Esfahbod else 191aa9c450bb2d7c3c9e36ea32e3558250391a0582dBehdad Esfahbod c->buffer->info[i].codepoint = codepoint; 192ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod } 193ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod} 194ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 195ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbodstatic void 196ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbodhb_map_glyphs (hb_font_t *font, 197ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod hb_buffer_t *buffer) 198ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod{ 1995d90a342e319068716429bf7af76c3896b61a0e5Behdad Esfahbod hb_codepoint_t glyph; 2005d90a342e319068716429bf7af76c3896b61a0e5Behdad Esfahbod 201ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod if (unlikely (!buffer->len)) 202ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod return; 203ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 204a224b4d502d026fa642ee4098bf7bc0b4ba7ce27Behdad Esfahbod buffer->clear_output (); 2055d90a342e319068716429bf7af76c3896b61a0e5Behdad Esfahbod 206ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod unsigned int count = buffer->len - 1; 207468e9cb25c9bc14781b7013e447d763f93bf76a3Behdad Esfahbod for (buffer->idx = 0; buffer->idx < count;) { 2086769f21d579a354e32577ec57348e97d2cb1b438Behdad Esfahbod if (unlikely (_hb_unicode_is_variation_selector (buffer->info[buffer->idx + 1].codepoint))) { 209468e9cb25c9bc14781b7013e447d763f93bf76a3Behdad Esfahbod hb_font_get_glyph (font, buffer->info[buffer->idx].codepoint, buffer->info[buffer->idx + 1].codepoint, &glyph); 2100fd8c2f1be693616f19f2f1526369874763d6cf6Behdad Esfahbod buffer->replace_glyph (glyph); 2119111b21ef99d5e53348176f683261b0101eb427fBehdad Esfahbod buffer->skip_glyph (); 212ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod } else { 213468e9cb25c9bc14781b7013e447d763f93bf76a3Behdad Esfahbod hb_font_get_glyph (font, buffer->info[buffer->idx].codepoint, 0, &glyph); 2140fd8c2f1be693616f19f2f1526369874763d6cf6Behdad Esfahbod buffer->replace_glyph (glyph); 215ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod } 216ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod } 217468e9cb25c9bc14781b7013e447d763f93bf76a3Behdad Esfahbod if (likely (buffer->idx < buffer->len)) { 218468e9cb25c9bc14781b7013e447d763f93bf76a3Behdad Esfahbod hb_font_get_glyph (font, buffer->info[buffer->idx].codepoint, 0, &glyph); 2190fd8c2f1be693616f19f2f1526369874763d6cf6Behdad Esfahbod buffer->replace_glyph (glyph); 2200fd8c2f1be693616f19f2f1526369874763d6cf6Behdad Esfahbod } 221468e9cb25c9bc14781b7013e447d763f93bf76a3Behdad Esfahbod buffer->swap_buffers (); 222ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod} 223ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 224ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbodstatic void 225967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbodhb_substitute_default (hb_ot_shape_context_t *c) 226ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod{ 227b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod hb_ot_layout_substitute_start (c->buffer); 228b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod 229b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod hb_mirror_chars (c); 230b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod 23172657e4ce757dcb055a8db7291b68f96f0d34bfbBehdad Esfahbod hb_map_glyphs (c->font, c->buffer); 232ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod} 233ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 234ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbodstatic void 235c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbodhb_ot_substitute_complex (hb_ot_shape_context_t *c) 236c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod{ 2372118fdb9f584e6735e904638e48bae48314372faBehdad Esfahbod if (hb_ot_layout_has_substitution (c->face)) { 238b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod c->plan->map.substitute (c->face, c->buffer); 2392118fdb9f584e6735e904638e48bae48314372faBehdad Esfahbod c->applied_substitute_complex = TRUE; 2402118fdb9f584e6735e904638e48bae48314372faBehdad Esfahbod } 241c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod 242b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod hb_ot_layout_substitute_finish (c->buffer); 243c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod 244c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod return; 245c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod} 246c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod 247c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbodstatic void 248967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbodhb_substitute_complex_fallback (hb_ot_shape_context_t *c HB_UNUSED) 249ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod{ 250ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod /* TODO Arabic */ 251ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod} 252ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 253ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 254ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod/* Position */ 255ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 256ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbodstatic void 257967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbodhb_position_default (hb_ot_shape_context_t *c) 258ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod{ 2598f0d7e0c3fd4b05c43ac449be4f374dc2dc56127Behdad Esfahbod hb_ot_layout_position_start (c->buffer); 260ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 261967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod unsigned int count = c->buffer->len; 262ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod for (unsigned int i = 0; i < count; i++) { 263744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod hb_font_get_glyph_advance_for_direction (c->font, c->buffer->info[i].codepoint, 264744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod c->buffer->props.direction, 265744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod &c->buffer->pos[i].x_advance, 266744970af4d884cc87ffa645804578fec8df674a9Behdad Esfahbod &c->buffer->pos[i].y_advance); 2678b38faeede41e64eb0f6ac2e12ce51dd7138d50aBehdad Esfahbod hb_font_subtract_glyph_origin_for_direction (c->font, c->buffer->info[i].codepoint, 2688b38faeede41e64eb0f6ac2e12ce51dd7138d50aBehdad Esfahbod c->buffer->props.direction, 2698b38faeede41e64eb0f6ac2e12ce51dd7138d50aBehdad Esfahbod &c->buffer->pos[i].x_offset, 2708b38faeede41e64eb0f6ac2e12ce51dd7138d50aBehdad Esfahbod &c->buffer->pos[i].y_offset); 271ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod } 272ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod} 273ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 274ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbodstatic void 275c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbodhb_ot_position_complex (hb_ot_shape_context_t *c) 276c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod{ 277c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod 278b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod if (hb_ot_layout_has_positioning (c->face)) 279b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod { 280b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod /* Change glyph origin to what GPOS expects, apply GPOS, change it back. */ 281b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod 282b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod unsigned int count = c->buffer->len; 283b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod for (unsigned int i = 0; i < count; i++) { 284b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod hb_font_add_glyph_origin_for_direction (c->font, c->buffer->info[i].codepoint, 285b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod HB_DIRECTION_LTR, 286b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod &c->buffer->pos[i].x_offset, 287b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod &c->buffer->pos[i].y_offset); 288b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod } 289c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod 290b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod c->plan->map.position (c->font, c->buffer); 291c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod 292b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod for (unsigned int i = 0; i < count; i++) { 293b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod hb_font_subtract_glyph_origin_for_direction (c->font, c->buffer->info[i].codepoint, 294b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod HB_DIRECTION_LTR, 295b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod &c->buffer->pos[i].x_offset, 296b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod &c->buffer->pos[i].y_offset); 297b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod } 2982118fdb9f584e6735e904638e48bae48314372faBehdad Esfahbod 2992118fdb9f584e6735e904638e48bae48314372faBehdad Esfahbod c->applied_position_complex = TRUE; 300c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod } 301c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod 302c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod hb_ot_layout_position_finish (c->buffer); 303c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod 304c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod return; 305c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod} 306c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbod 307c86f932015bdf5803572b0904d343d3bc033e009Behdad Esfahbodstatic void 308967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbodhb_position_complex_fallback (hb_ot_shape_context_t *c HB_UNUSED) 309ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod{ 310ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod /* TODO Mark pos */ 311ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod} 312ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 313ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbodstatic void 314967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbodhb_truetype_kern (hb_ot_shape_context_t *c) 315ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod{ 316ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod /* TODO Check for kern=0 */ 317967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod unsigned int count = c->buffer->len; 318ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod for (unsigned int i = 1; i < count; i++) { 319a513dbcf73ab1cc39a7c9653034904d0c6cd9fe9Behdad Esfahbod hb_position_t x_kern, y_kern, kern1, kern2; 3207e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod hb_font_get_glyph_kerning_for_direction (c->font, 3217e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod c->buffer->info[i - 1].codepoint, c->buffer->info[i].codepoint, 3227e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod c->buffer->props.direction, 3237e2c85de305be59e1a6afa7d2061e4b7dd00acf7Behdad Esfahbod &x_kern, &y_kern); 324a513dbcf73ab1cc39a7c9653034904d0c6cd9fe9Behdad Esfahbod 325a513dbcf73ab1cc39a7c9653034904d0c6cd9fe9Behdad Esfahbod kern1 = x_kern >> 1; 326a513dbcf73ab1cc39a7c9653034904d0c6cd9fe9Behdad Esfahbod kern2 = x_kern - kern1; 327967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod c->buffer->pos[i - 1].x_advance += kern1; 328967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod c->buffer->pos[i].x_advance += kern2; 329967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod c->buffer->pos[i].x_offset += kern2; 330a513dbcf73ab1cc39a7c9653034904d0c6cd9fe9Behdad Esfahbod 331a513dbcf73ab1cc39a7c9653034904d0c6cd9fe9Behdad Esfahbod kern1 = y_kern >> 1; 332a513dbcf73ab1cc39a7c9653034904d0c6cd9fe9Behdad Esfahbod kern2 = y_kern - kern1; 333a513dbcf73ab1cc39a7c9653034904d0c6cd9fe9Behdad Esfahbod c->buffer->pos[i - 1].y_advance += kern1; 334a513dbcf73ab1cc39a7c9653034904d0c6cd9fe9Behdad Esfahbod c->buffer->pos[i].y_advance += kern2; 335a513dbcf73ab1cc39a7c9653034904d0c6cd9fe9Behdad Esfahbod c->buffer->pos[i].y_offset += kern2; 336ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod } 337ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod} 338ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 339ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbodstatic void 340967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbodhb_position_complex_fallback_visual (hb_ot_shape_context_t *c) 341ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod{ 342967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod hb_truetype_kern (c); 343ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod} 344ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 345ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 346ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod/* Do it! */ 347ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 348967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbodstatic void 349fd3d32d31cb6d74a9994b6850d539fd0b707d941Behdad Esfahbodhb_ot_shape_execute_internal (hb_ot_shape_context_t *c) 350ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod{ 351b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod c->buffer->deallocate_var_all (); 352b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod 353d2ba016ca1ba7489537768b619980d5159b5870cBehdad Esfahbod /* Save the original direction, we use it later. */ 354bbbbe80ec9bc45c5b685bc09c8f993e98496555cBehdad Esfahbod c->target_direction = c->buffer->props.direction; 355d2ba016ca1ba7489537768b619980d5159b5870cBehdad Esfahbod 356b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod HB_BUFFER_ALLOCATE_VAR (c->buffer, general_category); 357b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod HB_BUFFER_ALLOCATE_VAR (c->buffer, combining_class); 358b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod 359b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod _hb_set_unicode_props (c->buffer); /* BUFFER: Set general_category and combining_class */ 360fc96596b7c1c4e62491e951a3c256fb00dcde550Behdad Esfahbod 3614ff0d2d9dfc4f7e4880a4e964ca9872624508ea0Behdad Esfahbod hb_form_clusters (c->buffer); 3624ff0d2d9dfc4f7e4880a4e964ca9872624508ea0Behdad Esfahbod 363aa7264123a088936f2043b45d4d41ca7413fabe5Behdad Esfahbod hb_ensure_native_direction (c->buffer); 36454d1a0d2b2c4ffe15494967122c6422ecb1fc80bBehdad Esfahbod 36511138ccff71f442da1fcf64faa0e1d22e083e775Behdad Esfahbod _hb_ot_shape_normalize (c->font, c->buffer, hb_ot_shape_complex_normalization_preference (c->plan->shaper)); 366655586fe5e1fadf2a2ef7826e61ee9a445ffa37aBehdad Esfahbod 367b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod hb_ot_shape_setup_masks (c); 36898370e89d1bff248737b482d129c2a4deb8bfd95Behdad Esfahbod 3691094a294f6a44c47fc75867983f2b135a6442babBehdad Esfahbod /* SUBSTITUTE */ 370fdc322a82047c4bda9fa3dab4338a0eac1c1bde7Behdad Esfahbod { 371967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod hb_substitute_default (c); 372bbc7a99d01298f9be1ebaaceacbc9bc961e247e5Behdad Esfahbod 37336925f695d349a53d52ecc3a58f18240a6977463Behdad Esfahbod hb_ot_substitute_complex (c); 374ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 375967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod if (!c->applied_substitute_complex) 376967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod hb_substitute_complex_fallback (c); 377fdc322a82047c4bda9fa3dab4338a0eac1c1bde7Behdad Esfahbod } 3781094a294f6a44c47fc75867983f2b135a6442babBehdad Esfahbod 3791094a294f6a44c47fc75867983f2b135a6442babBehdad Esfahbod /* POSITION */ 380fdc322a82047c4bda9fa3dab4338a0eac1c1bde7Behdad Esfahbod { 381967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod hb_position_default (c); 382ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 38336925f695d349a53d52ecc3a58f18240a6977463Behdad Esfahbod hb_ot_position_complex (c); 384ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 385967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod hb_bool_t position_fallback = !c->applied_position_complex; 386fdc322a82047c4bda9fa3dab4338a0eac1c1bde7Behdad Esfahbod if (position_fallback) 387967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod hb_position_complex_fallback (c); 388ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 389967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod if (HB_DIRECTION_IS_BACKWARD (c->buffer->props.direction)) 390967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod hb_buffer_reverse (c->buffer); 391ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 392fdc322a82047c4bda9fa3dab4338a0eac1c1bde7Behdad Esfahbod if (position_fallback) 393967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod hb_position_complex_fallback_visual (c); 394fdc322a82047c4bda9fa3dab4338a0eac1c1bde7Behdad Esfahbod } 395ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod 396b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod HB_BUFFER_DEALLOCATE_VAR (c->buffer, combining_class); 397b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod HB_BUFFER_DEALLOCATE_VAR (c->buffer, general_category); 398b65c06025d2b54a44f716e030d4b10072c65bea8Behdad Esfahbod 399bbbbe80ec9bc45c5b685bc09c8f993e98496555cBehdad Esfahbod c->buffer->props.direction = c->target_direction; 4009f9bcceca6321d5a5812f878de1de39901349a78Behdad Esfahbod 4019f9bcceca6321d5a5812f878de1de39901349a78Behdad Esfahbod c->buffer->deallocate_var_all (); 402967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod} 403967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod 404376dafa6ed414e368e9dc1d5a2e0bfc8e55f410dBehdad Esfahbodstatic void 405605ed468f380f86d642031f6451447d270cb6de1Behdad Esfahbodhb_ot_shape_plan_internal (hb_ot_shape_plan_t *plan, 406d2ba016ca1ba7489537768b619980d5159b5870cBehdad Esfahbod hb_face_t *face, 40749baa1f69efb0e3c62e45bd59dd88459a84bf390Behdad Esfahbod const hb_segment_properties_t *props, 408d2ba016ca1ba7489537768b619980d5159b5870cBehdad Esfahbod const hb_feature_t *user_features, 409d2ba016ca1ba7489537768b619980d5159b5870cBehdad Esfahbod unsigned int num_user_features) 410d2ba016ca1ba7489537768b619980d5159b5870cBehdad Esfahbod{ 41190645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbod hb_ot_shape_planner_t planner; 41249baa1f69efb0e3c62e45bd59dd88459a84bf390Behdad Esfahbod 41390645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbod planner.shaper = hb_ot_shape_complex_categorize (props); 414d2ba016ca1ba7489537768b619980d5159b5870cBehdad Esfahbod 41590645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbod hb_ot_shape_collect_features (&planner, props, user_features, num_user_features); 41690645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbod 41790645fb24bcbb78183576d3641a99560d87e49f2Behdad Esfahbod planner.compile (face, props, *plan); 418d2ba016ca1ba7489537768b619980d5159b5870cBehdad Esfahbod} 419d2ba016ca1ba7489537768b619980d5159b5870cBehdad Esfahbod 420376dafa6ed414e368e9dc1d5a2e0bfc8e55f410dBehdad Esfahbodstatic void 421fd3d32d31cb6d74a9994b6850d539fd0b707d941Behdad Esfahbodhb_ot_shape_execute (hb_ot_shape_plan_t *plan, 422fd3d32d31cb6d74a9994b6850d539fd0b707d941Behdad Esfahbod hb_font_t *font, 423fd3d32d31cb6d74a9994b6850d539fd0b707d941Behdad Esfahbod hb_buffer_t *buffer, 424fd3d32d31cb6d74a9994b6850d539fd0b707d941Behdad Esfahbod const hb_feature_t *user_features, 425fd3d32d31cb6d74a9994b6850d539fd0b707d941Behdad Esfahbod unsigned int num_user_features) 426fd3d32d31cb6d74a9994b6850d539fd0b707d941Behdad Esfahbod{ 42772657e4ce757dcb055a8db7291b68f96f0d34bfbBehdad Esfahbod hb_ot_shape_context_t c = {plan, font, font->face, buffer, user_features, num_user_features}; 428fd3d32d31cb6d74a9994b6850d539fd0b707d941Behdad Esfahbod hb_ot_shape_execute_internal (&c); 429fd3d32d31cb6d74a9994b6850d539fd0b707d941Behdad Esfahbod} 430fd3d32d31cb6d74a9994b6850d539fd0b707d941Behdad Esfahbod 43102aeca985b570763342c35e99af90025bfa088d5Behdad Esfahbodhb_bool_t 4325814dfa3f5aa41bc3df06b78980d57d7bea0ba58Behdad Esfahbodhb_ot_shape (hb_font_t *font, 4335814dfa3f5aa41bc3df06b78980d57d7bea0ba58Behdad Esfahbod hb_buffer_t *buffer, 4345814dfa3f5aa41bc3df06b78980d57d7bea0ba58Behdad Esfahbod const hb_feature_t *features, 43502aeca985b570763342c35e99af90025bfa088d5Behdad Esfahbod unsigned int num_features, 4360501573deda3a8dcdfcea491392f554f21ed0154Behdad Esfahbod const char * const *shaper_options) 437967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod{ 438e06d4eda7bbdb3a1be1f1ce8d98b059a0730f14dBehdad Esfahbod hb_ot_shape_plan_t plan; 439967240dd8b96802345ef273e75427066e91ea8fbBehdad Esfahbod 44002aeca985b570763342c35e99af90025bfa088d5Behdad Esfahbod buffer->guess_properties (); 44102aeca985b570763342c35e99af90025bfa088d5Behdad Esfahbod 44272657e4ce757dcb055a8db7291b68f96f0d34bfbBehdad Esfahbod hb_ot_shape_plan_internal (&plan, font->face, &buffer->props, features, num_features); 44372657e4ce757dcb055a8db7291b68f96f0d34bfbBehdad Esfahbod hb_ot_shape_execute (&plan, font, buffer, features, num_features); 44402aeca985b570763342c35e99af90025bfa088d5Behdad Esfahbod 44502aeca985b570763342c35e99af90025bfa088d5Behdad Esfahbod return TRUE; 446ca663bb23c16f6a1f04efa6e10dad0e3e7c260a3Behdad Esfahbod} 447acdba3f90b232fc12fcb200dca2584481b339118Behdad Esfahbod 448acdba3f90b232fc12fcb200dca2584481b339118Behdad Esfahbod 449