15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright © 2011,2012 Google, Inc. 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This is part of HarfBuzz, a text shaping library. 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Permission is hereby granted, without written agreement and without 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * license or royalty fees, to use, copy, modify, and distribute this 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * software and its documentation for any purpose, provided that the 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * above copyright notice and the following two paragraphs appear in 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * all copies of this software. 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * DAMAGE. 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Google Author(s): Behdad Esfahbod 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef HB_OT_NAME_TABLE_HH 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define HB_OT_NAME_TABLE_HH 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "hb-open-type-private.hh" 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace OT { 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * name -- The Naming Table 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define HB_OT_TAG_name HB_TAG('n','a','m','e') 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NameRecord 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static int cmp (const NameRecord *a, const NameRecord *b) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int ret; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ret = b->platformID.cmp (a->platformID); 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ret) return ret; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ret = b->encodingID.cmp (a->encodingID); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ret) return ret; 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ret = b->languageID.cmp (a->languageID); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ret) return ret; 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ret = b->nameID.cmp (a->nameID); 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ret) return ret; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 0; 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) inline bool sanitize (hb_sanitize_context_t *c, void *base) { 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) TRACE_SANITIZE (this); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* We can check from base all the way up to the end of string... */ 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return TRACE_RETURN (c->check_struct (this) && c->check_range ((char *) base, (unsigned int) length + offset)); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT platformID; /* Platform ID. */ 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT encodingID; /* Platform-specific encoding ID. */ 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT languageID; /* Language ID. */ 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT nameID; /* Name ID. */ 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT length; /* String length (in bytes). */ 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT offset; /* String offset from start of storage area (in bytes). */ 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DEFINE_SIZE_STATIC (12); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct name 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 77f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) static const hb_tag_t tableTag = HB_OT_TAG_name; 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) inline unsigned int get_name (unsigned int platform_id, 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned int encoding_id, 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned int language_id, 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned int name_id, 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void *buffer, 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned int buffer_length) const 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NameRecord key; 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) key.platformID.set (platform_id); 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) key.encodingID.set (encoding_id); 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) key.languageID.set (language_id); 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) key.nameID.set (name_id); 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NameRecord *match = (NameRecord *) bsearch (&key, nameRecord, count, sizeof (nameRecord[0]), (hb_compare_func_t) NameRecord::cmp); 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!match) 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 0; 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned int length = MIN (buffer_length, (unsigned int) match->length); 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memcpy (buffer, (char *) this + stringOffset + match->offset, length); 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return length; 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 101f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) inline unsigned int get_size (void) const 102f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) { return min_size + count * nameRecord[0].min_size; } 103f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) inline bool sanitize_records (hb_sanitize_context_t *c) { 1052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) TRACE_SANITIZE (this); 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char *string_pool = (char *) this + stringOffset; 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned int _count = count; 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (unsigned int i = 0; i < _count; i++) 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!nameRecord[i].sanitize (c, string_pool)) return TRACE_RETURN (false); 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return TRACE_RETURN (true); 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) inline bool sanitize (hb_sanitize_context_t *c) { 1142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) TRACE_SANITIZE (this); 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return TRACE_RETURN (c->check_struct (this) && 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) likely (format == 0 || format == 1) && 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) c->check_array (nameRecord, nameRecord[0].static_size, count) && 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sanitize_records (c)); 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* We only implement format 0 for now. */ 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT format; /* Format selector (=0/1). */ 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT count; /* Number of name records. */ 1245f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) Offset<> stringOffset; /* Offset to start of string storage (from start of table). */ 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NameRecord nameRecord[VAR]; /* The name records where count is the number of records. */ 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DEFINE_SIZE_ARRAY (6, nameRecord); 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} /* namespace OT */ 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* HB_OT_NAME_TABLE_HH */ 135