239 lines
4.7 KiB
C++
239 lines
4.7 KiB
C++
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/*
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* Copyright © 2016 Elie Roux <elie.roux@telecom-bretagne.eu>
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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*/
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#ifndef HB_OT_BASE_TABLE_HH
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#define HB_OT_BASE_TABLE_HH
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#include "hb-open-type-private.hh"
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#include "hb-ot-layout-common-private.hh"
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#define HB_OT_TAG_BASE HB_TAG('B','A','S','E')
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// https://www.microsoft.com/typography/otspec/baselinetags.htm
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#define HB_OT_TAG_BASE_HANG HB_TAG('h','a','n','g')
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#define HB_OT_TAG_BASE_ICFB HB_TAG('i','c','f','b')
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#define HB_OT_TAG_BASE_ICFT HB_TAG('i','c','f','t')
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#define HB_OT_TAG_BASE_IDEO HB_TAG('i','d','e','o')
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#define HB_OT_TAG_BASE_IDTB HB_TAG('i','d','t','b')
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#define HB_OT_TAG_BASE_MATH HB_TAG('m','a','t','h')
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#define HB_OT_TAG_BASE_ROMN HB_TAG('r','o','m','n')
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namespace OT {
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/*
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* BASE -- The BASE Table
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*/
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struct BaseCoordFormat1 {
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protected:
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USHORT baseCoordFormat;
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SHORT coordinate;
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public:
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DEFINE_SIZE_STATIC (4);
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};
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struct BaseCoordFormat2 {
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protected:
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USHORT baseCoordFormat;
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SHORT coordinate;
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USHORT referenceGlyph;
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USHORT baseCoordPoint;
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public:
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DEFINE_SIZE_STATIC (8);
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};
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struct BaseCoordFormat3 {
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protected:
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USHORT baseCoordFormat;
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SHORT coordinate;
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OffsetTo<Device> deviceTable;
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public:
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DEFINE_SIZE_STATIC (6);
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};
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struct BaseCoord {
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protected:
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union {
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USHORT baseCoordFormat;
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BaseCoordFormat1 format1;
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BaseCoordFormat2 format2;
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BaseCoordFormat3 format3;
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} u;
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public:
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DEFINE_SIZE_MIN (4);
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};
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struct FeatMinMaxRecord {
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protected:
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Tag featureTableTag;
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OffsetTo<BaseCoord> minCoord;
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OffsetTo<BaseCoord> maxCoord;
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public:
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DEFINE_SIZE_STATIC (8);
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};
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struct MinMaxTable {
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protected:
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OffsetTo<BaseCoord> minCoord;
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OffsetTo<BaseCoord> maxCoord;
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USHORT featMinMaxCount;
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ArrayOf<FeatMinMaxRecord> featMinMaxRecordTable;
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public:
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DEFINE_SIZE_ARRAY (6, featMinMaxRecordTable);
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};
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struct BaseLangSysRecord {
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protected:
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Tag baseLangSysTag;
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OffsetTo<MinMaxTable> minMax;
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public:
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DEFINE_SIZE_STATIC (6);
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};
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struct BaseValuesTable {
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protected:
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USHORT defaultIndex;
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USHORT baseCoordCount;
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ArrayOf<BaseCoord> baseCoordTable;
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public:
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DEFINE_SIZE_ARRAY (4, baseCoordTable);
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};
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struct BaseScriptTable {
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protected:
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OffsetTo<BaseValuesTable> baseValues;
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OffsetTo<MinMaxTable> defaultMinMax;
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USHORT baseLangSysCount;
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ArrayOf<BaseLangSysRecord> baseLangSysRecordTable;
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public:
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DEFINE_SIZE_ARRAY (6, baseLangSysRecordTable);
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};
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struct BaseScriptRecord {
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protected:
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Tag baseScriptTag;
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OffsetTo<BaseScriptTable> baseScript;
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public:
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DEFINE_SIZE_STATIC (4);
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};
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struct BaseScriptList {
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protected:
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USHORT baseScriptCount;
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ArrayOf<BaseScriptRecord> baseScriptRecordTable;
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public:
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DEFINE_SIZE_ARRAY (2, baseScriptRecordTable);
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};
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struct BaselineTag {
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protected:
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Tag tag;
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public:
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DEFINE_SIZE_STATIC (4);
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};
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struct BaseTagList
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{
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protected:
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USHORT baseTagCount;
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ArrayOf<BaselineTag> BaseTagListTable;
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public:
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DEFINE_SIZE_STATIC (4);
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};
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struct VertAxis
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{
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protected:
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OffsetTo<BaseTagList> baseTagList;
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OffsetTo<BaseScriptList> baseScriptList;
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public:
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DEFINE_SIZE_STATIC (4);
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};
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struct HorizAxis
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{
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protected:
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OffsetTo<HorizAxis> baseTagList;
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OffsetTo<VertAxis> baseScriptList;
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public:
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DEFINE_SIZE_STATIC (4);
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};
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struct BASE
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{
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static const hb_tag_t tableTag = HB_OT_TAG_BASE;
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inline bool sanitize (hb_sanitize_context_t *c) const
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{
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TRACE_SANITIZE (this);
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return_trace (version.sanitize (c) &&
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likely (version.major == 1));
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}
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protected:
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FixedVersion<>version; /* Version of the BASE table: 1.0 or 1.1 */
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OffsetTo<HorizAxis> horizAxis;
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OffsetTo<VertAxis> vertAxis;
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//LOffsetTo<ItemVarStore> itemVarStore;
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public:
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DEFINE_SIZE_MIN (6);
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};
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} /* namespace OT */
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#endif /* HB_OT_BASE_TABLE_HH */
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