From 2afa8cf572f1ad67bf6b9646afa31bfef51138e1 Mon Sep 17 00:00:00 2001 From: Akira Kakuto Date: Sat, 25 Feb 2017 22:30:01 +0000 Subject: harfbuzz 1.4.3 git-svn-id: svn://tug.org/texlive/trunk@43339 c570f23f-e606-0410-a88d-b1316a301751 --- .../harfbuzz-src/src/hb-ot-var-mvar-table.hh | 110 +++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-var-mvar-table.hh (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-var-mvar-table.hh') diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-var-mvar-table.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-var-mvar-table.hh new file mode 100644 index 00000000000..3cb74984767 --- /dev/null +++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-var-mvar-table.hh @@ -0,0 +1,110 @@ +/* + * Copyright © 2017 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_VAR_MVAR_TABLE_HH +#define HB_OT_VAR_MVAR_TABLE_HH + +#include "hb-ot-layout-common-private.hh" + + +namespace OT { + + +struct VariationValueRecord +{ + inline bool sanitize (hb_sanitize_context_t *c) const + { + TRACE_SANITIZE (this); + return_trace (c->check_struct (this)); + } + + public: + Tag valueTag; /* Four-byte tag identifying a font-wide measure. */ + ULONG varIdx; /* Outer/inner index into VariationStore item. */ + + public: + DEFINE_SIZE_STATIC (8); +}; + + +/* + * MVAR -- Metrics Variations Table + */ + +#define HB_OT_TAG_MVAR HB_TAG('M','V','A','R') + +struct MVAR +{ + static const hb_tag_t tableTag = HB_OT_TAG_MVAR; + + inline bool sanitize (hb_sanitize_context_t *c) const + { + TRACE_SANITIZE (this); + return_trace (version.sanitize (c) && + likely (version.major == 1) && + c->check_struct (this) && + valueRecordSize >= VariationValueRecord::static_size && + varStore.sanitize (c, this) && + c->check_array (values, valueRecordSize, valueRecordCount)); + } + + inline float get_var (hb_tag_t tag, + int *coords, unsigned int coord_count) const + { + const VariationValueRecord *record; + record = (VariationValueRecord *) bsearch (&tag, values, + valueRecordCount, valueRecordSize, + (hb_compare_func_t) tag_compare); + if (!record) + return 0.; + + return (this+varStore).get_delta (record->varIdx, coords, coord_count); + } + +protected: + static inline int tag_compare (const hb_tag_t *a, const Tag *b) + { return b->cmp (*a); } + + protected: + FixedVersion<>version; /* Version of the metrics variation table + * initially set to 0x00010000u */ + USHORT reserved; /* Not used; set to 0. */ + USHORT valueRecordSize;/* The size in bytes of each value record — + * must be greater than zero. */ + USHORT valueRecordCount;/* The number of value records — may be zero. */ + OffsetTo + varStore; /* Offset to item variation store table. */ + BYTE values[VAR]; /* Array of value records. The records must be + * in binary order of their valueTag field. */ + + public: + DEFINE_SIZE_ARRAY (12, values); +}; + +} /* namespace OT */ + + +#endif /* HB_OT_VAR_MVAR_TABLE_HH */ -- cgit v1.2.3