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Diffstat (limited to 'third_party/harfbuzz/src/harfbuzz-open.h')
| -rw-r--r-- | third_party/harfbuzz/src/harfbuzz-open.h | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/third_party/harfbuzz/src/harfbuzz-open.h b/third_party/harfbuzz/src/harfbuzz-open.h new file mode 100644 index 0000000..bdc6358 --- /dev/null +++ b/third_party/harfbuzz/src/harfbuzz-open.h @@ -0,0 +1,282 @@ +/* + * Copyright (C) 1998-2004 David Turner and Werner Lemberg + * Copyright (C) 2006 Behdad Esfahbod + * + * This is part of HarfBuzz, an OpenType Layout engine 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. + */ + +#ifndef HARFBUZZ_OPEN_H +#define HARFBUZZ_OPEN_H + +#include "harfbuzz-global.h" + +HB_BEGIN_HEADER + +/* Use this if a feature applies to all glyphs */ +#define HB_ALL_GLYPHS 0xFFFF + +#define HB_DEFAULT_LANGUAGE 0xFFFF + +#define HB_MAX_NESTING_LEVEL 100 + + +/* Script list related structures */ + +struct HB_LangSys_ +{ + HB_UShort LookupOrderOffset; /* always 0 for TT Open 1.0 */ + HB_UShort ReqFeatureIndex; /* required FeatureIndex */ + HB_UShort FeatureCount; /* number of Feature indices */ + HB_UShort* FeatureIndex; /* array of Feature indices */ +}; + +typedef struct HB_LangSys_ HB_LangSys; + + +struct HB_LangSysRecord_ +{ + HB_UInt LangSysTag; /* LangSysTag identifier */ + HB_LangSys LangSys; /* LangSys table */ +}; + +typedef struct HB_LangSysRecord_ HB_LangSysRecord; + + +struct HB_ScriptTable_ +{ + HB_LangSys DefaultLangSys; /* DefaultLangSys table */ + HB_UShort LangSysCount; /* number of LangSysRecords */ + HB_LangSysRecord* LangSysRecord; /* array of LangSysRecords */ +}; + +typedef struct HB_ScriptTable_ HB_ScriptTable; + + +struct HB_ScriptRecord_ +{ + HB_UInt ScriptTag; /* ScriptTag identifier */ + HB_ScriptTable Script; /* Script table */ +}; + +typedef struct HB_ScriptRecord_ HB_ScriptRecord; + + +struct HB_ScriptList_ +{ + HB_UShort ScriptCount; /* number of ScriptRecords */ + HB_ScriptRecord* ScriptRecord; /* array of ScriptRecords */ +}; + +typedef struct HB_ScriptList_ HB_ScriptList; + + +/* Feature list related structures */ + +struct HB_Feature_ +{ + HB_UShort FeatureParams; /* always 0 for TT Open 1.0 */ + HB_UShort LookupListCount; /* number of LookupList indices */ + HB_UShort* LookupListIndex; /* array of LookupList indices */ +}; + +typedef struct HB_Feature_ HB_Feature; + + +struct HB_FeatureRecord_ +{ + HB_UInt FeatureTag; /* FeatureTag identifier */ + HB_Feature Feature; /* Feature table */ +}; + +typedef struct HB_FeatureRecord_ HB_FeatureRecord; + + +struct HB_FeatureList_ +{ + HB_UShort FeatureCount; /* number of FeatureRecords */ + HB_FeatureRecord* FeatureRecord; /* array of FeatureRecords */ + HB_UShort* ApplyOrder; /* order to apply features */ + HB_UShort ApplyCount; /* number of elements in ApplyOrder */ +}; + +typedef struct HB_FeatureList_ HB_FeatureList; + + +/* Lookup list related structures */ + +typedef struct HB_SubTable_ HB_SubTable; + + +struct HB_Lookup_ +{ + HB_UShort LookupType; /* Lookup type */ + HB_UShort LookupFlag; /* Lookup qualifiers */ + HB_UShort SubTableCount; /* number of SubTables */ + HB_SubTable* SubTable; /* array of SubTables */ +}; + +typedef struct HB_Lookup_ HB_Lookup; + + +/* The `Properties' field is not defined in the OpenType specification but + is needed for processing lookups. If properties[n] is > 0, the + functions HB_GSUB_Apply_String() resp. HB_GPOS_Apply_String() will + process Lookup[n] for glyphs which have the specific bit not set in + the `properties' field of the input string object. */ + +struct HB_LookupList_ +{ + HB_UShort LookupCount; /* number of Lookups */ + HB_Lookup* Lookup; /* array of Lookup records */ + HB_UInt* Properties; /* array of flags */ +}; + +typedef struct HB_LookupList_ HB_LookupList; + + +/* Possible LookupFlag bit masks. `HB_LOOKUP_FLAG_IGNORE_SPECIAL_MARKS' comes from the + OpenType 1.2 specification; HB_LOOKUP_FLAG_RIGHT_TO_LEFT has been (re)introduced in + OpenType 1.3 -- if set, the last glyph in a cursive attachment + sequence has to be positioned on the baseline -- regardless of the + writing direction. */ + +#define HB_LOOKUP_FLAG_RIGHT_TO_LEFT 0x0001 +#define HB_LOOKUP_FLAG_IGNORE_BASE_GLYPHS 0x0002 +#define HB_LOOKUP_FLAG_IGNORE_LIGATURES 0x0004 +#define HB_LOOKUP_FLAG_IGNORE_MARKS 0x0008 +#define HB_LOOKUP_FLAG_IGNORE_SPECIAL_MARKS 0xFF00 + + +struct HB_CoverageFormat1_ +{ + HB_UShort GlyphCount; /* number of glyphs in GlyphArray */ + HB_UShort* GlyphArray; /* array of glyph IDs */ +}; + +typedef struct HB_CoverageFormat1_ HB_CoverageFormat1; + + +struct HB_RangeRecord_ +{ + HB_UShort Start; /* first glyph ID in the range */ + HB_UShort End; /* last glyph ID in the range */ + HB_UShort StartCoverageIndex; /* coverage index of first + glyph ID in the range */ +}; + +typedef struct HB_RangeRecord_ HB_RangeRecord; + + +struct HB_CoverageFormat2_ +{ + HB_UShort RangeCount; /* number of RangeRecords */ + HB_RangeRecord* RangeRecord; /* array of RangeRecords */ +}; + +typedef struct HB_CoverageFormat2_ HB_CoverageFormat2; + + +struct HB_Coverage_ +{ + HB_UShort CoverageFormat; /* 1 or 2 */ + + union + { + HB_CoverageFormat1 cf1; + HB_CoverageFormat2 cf2; + } cf; +}; + +typedef struct HB_Coverage_ HB_Coverage; + + +struct HB_ClassDefFormat1_ +{ + HB_UShort StartGlyph; /* first glyph ID of the + ClassValueArray */ + HB_UShort GlyphCount; /* size of the ClassValueArray */ + HB_UShort* ClassValueArray; /* array of class values */ +}; + +typedef struct HB_ClassDefFormat1_ HB_ClassDefFormat1; + + +struct HB_ClassRangeRecord_ +{ + HB_UShort Start; /* first glyph ID in the range */ + HB_UShort End; /* last glyph ID in the range */ + HB_UShort Class; /* applied to all glyphs in range */ +}; + +typedef struct HB_ClassRangeRecord_ HB_ClassRangeRecord; + + +struct HB_ClassDefFormat2_ +{ + HB_UShort ClassRangeCount; + /* number of ClassRangeRecords */ + HB_ClassRangeRecord* ClassRangeRecord; + /* array of ClassRangeRecords */ +}; + +typedef struct HB_ClassDefFormat2_ HB_ClassDefFormat2; + + +struct HB_ClassDefinition_ +{ + HB_Bool loaded; + + HB_UShort ClassFormat; /* 1 or 2 */ + + union + { + HB_ClassDefFormat1 cd1; + HB_ClassDefFormat2 cd2; + } cd; +}; + +typedef struct HB_ClassDefinition_ HB_ClassDefinition; + + +struct HB_Device_ +{ + HB_UShort StartSize; /* smallest size to correct */ + HB_UShort EndSize; /* largest size to correct */ + HB_UShort DeltaFormat; /* DeltaValue array data format: + 1, 2, or 3 */ + HB_UShort* DeltaValue; /* array of compressed data */ +}; + +typedef struct HB_Device_ HB_Device; + + +enum HB_Type_ +{ + HB_Type_GSUB, + HB_Type_GPOS +}; + +typedef enum HB_Type_ HB_Type; + + +HB_END_HEADER + +#endif /* HARFBUZZ_OPEN_H */ |