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Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-0.9.23/src/hb-ot-name-table.hh')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-0.9.23/src/hb-ot-name-table.hh | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-0.9.23/src/hb-ot-name-table.hh b/Build/source/libs/harfbuzz/harfbuzz-0.9.23/src/hb-ot-name-table.hh new file mode 100644 index 00000000000..07dc0565ca6 --- /dev/null +++ b/Build/source/libs/harfbuzz/harfbuzz-0.9.23/src/hb-ot-name-table.hh @@ -0,0 +1,134 @@ +/* + * Copyright © 2011,2012 Google, Inc. + * + * This is part of HarfBuzz, a text shaping library. + * + * Permission is hereby granted, without written agreement and without + * license or royalty fees, to use, copy, modify, and distribute this + * software and its documentation for any purpose, provided that the + * above copyright notice and the following two paragraphs appear in + * all copies of this software. + * + * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR + * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES + * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN + * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * + * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, + * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS + * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO + * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. + * + * Google Author(s): Behdad Esfahbod + */ + +#ifndef HB_OT_NAME_TABLE_HH +#define HB_OT_NAME_TABLE_HH + +#include "hb-open-type-private.hh" + + +namespace OT { + + +/* + * name -- The Naming Table + */ + +#define HB_OT_TAG_name HB_TAG('n','a','m','e') + + +struct NameRecord +{ + static int cmp (const NameRecord *a, const NameRecord *b) + { + int ret; + ret = b->platformID.cmp (a->platformID); + if (ret) return ret; + ret = b->encodingID.cmp (a->encodingID); + if (ret) return ret; + ret = b->languageID.cmp (a->languageID); + if (ret) return ret; + ret = b->nameID.cmp (a->nameID); + if (ret) return ret; + return 0; + } + + inline bool sanitize (hb_sanitize_context_t *c, void *base) { + TRACE_SANITIZE (this); + /* We can check from base all the way up to the end of string... */ + return TRACE_RETURN (c->check_struct (this) && c->check_range ((char *) base, (unsigned int) length + offset)); + } + + USHORT platformID; /* Platform ID. */ + USHORT encodingID; /* Platform-specific encoding ID. */ + USHORT languageID; /* Language ID. */ + USHORT nameID; /* Name ID. */ + USHORT length; /* String length (in bytes). */ + USHORT offset; /* String offset from start of storage area (in bytes). */ + public: + DEFINE_SIZE_STATIC (12); +}; + +struct name +{ + static const hb_tag_t tableTag = HB_OT_TAG_name; + + inline unsigned int get_name (unsigned int platform_id, + unsigned int encoding_id, + unsigned int language_id, + unsigned int name_id, + void *buffer, + unsigned int buffer_length) const + { + NameRecord key; + key.platformID.set (platform_id); + key.encodingID.set (encoding_id); + key.languageID.set (language_id); + key.nameID.set (name_id); + NameRecord *match = (NameRecord *) bsearch (&key, nameRecord, count, sizeof (nameRecord[0]), (hb_compare_func_t) NameRecord::cmp); + + if (!match) + return 0; + + unsigned int length = MIN (buffer_length, (unsigned int) match->length); + memcpy (buffer, (char *) this + stringOffset + match->offset, length); + return length; + } + + inline unsigned int get_size (void) const + { return min_size + count * nameRecord[0].min_size; } + + inline bool sanitize_records (hb_sanitize_context_t *c) { + TRACE_SANITIZE (this); + char *string_pool = (char *) this + stringOffset; + unsigned int _count = count; + for (unsigned int i = 0; i < _count; i++) + if (!nameRecord[i].sanitize (c, string_pool)) return TRACE_RETURN (false); + return TRACE_RETURN (true); + } + + inline bool sanitize (hb_sanitize_context_t *c) { + TRACE_SANITIZE (this); + return TRACE_RETURN (c->check_struct (this) && + likely (format == 0 || format == 1) && + c->check_array (nameRecord, nameRecord[0].static_size, count) && + sanitize_records (c)); + } + + /* We only implement format 0 for now. */ + USHORT format; /* Format selector (=0/1). */ + USHORT count; /* Number of name records. */ + Offset stringOffset; /* Offset to start of string storage (from start of table). */ + NameRecord nameRecord[VAR]; /* The name records where count is the number of records. */ + public: + DEFINE_SIZE_ARRAY (6, nameRecord); +}; + + +} /* namespace OT */ + + +#endif /* HB_OT_NAME_TABLE_HH */ |