diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-ot-layout-common-private.hh')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-ot-layout-common-private.hh | 261 |
1 files changed, 160 insertions, 101 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-layout-common-private.hh b/src/3rdparty/harfbuzz-ng/src/hb-ot-layout-common-private.hh index 62ca7a348e..5e699e1967 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-ot-layout-common-private.hh +++ b/src/3rdparty/harfbuzz-ng/src/hb-ot-layout-common-private.hh @@ -29,6 +29,8 @@ #ifndef HB_OT_LAYOUT_COMMON_PRIVATE_HH #define HB_OT_LAYOUT_COMMON_PRIVATE_HH +#include "hb-private.hh" +#include "hb-debug.hh" #include "hb-ot-layout-private.hh" #include "hb-open-type-private.hh" #include "hb-set-private.hh" @@ -45,12 +47,6 @@ namespace OT { -#define TRACE_DISPATCH(this, format) \ - hb_auto_trace_t<context_t::max_debug_depth, typename context_t::return_t> trace \ - (&c->debug_depth, c->get_name (), this, HB_FUNC, \ - "format %d", (int) format); - - #define NOT_COVERED ((unsigned int) -1) @@ -159,13 +155,13 @@ struct RangeRecord } template <typename set_t> - inline void add_coverage (set_t *glyphs) const { - glyphs->add_range (start, end); + inline bool add_coverage (set_t *glyphs) const { + return glyphs->add_range (start, end); } GlyphID start; /* First GlyphID in the range */ GlyphID end; /* Last GlyphID in the range */ - USHORT value; /* Value */ + UINT16 value; /* Value */ public: DEFINE_SIZE_STATIC (6); }; @@ -179,7 +175,7 @@ struct IndexArray : ArrayOf<Index> unsigned int *_indexes /* OUT */) const { if (_count) { - const USHORT *arr = this->sub_array (start_offset, _count); + const UINT16 *arr = this->sub_array (start_offset, _count); unsigned int count = *_count; for (unsigned int i = 0; i < count; i++) _indexes[i] = arr[i]; @@ -214,15 +210,15 @@ struct LangSys } inline bool sanitize (hb_sanitize_context_t *c, - const Record<LangSys>::sanitize_closure_t * = NULL) const + const Record<LangSys>::sanitize_closure_t * = nullptr) const { TRACE_SANITIZE (this); return_trace (c->check_struct (this) && featureIndex.sanitize (c)); } - Offset<> lookupOrderZ; /* = Null (reserved for an offset to a + Offset16 lookupOrderZ; /* = Null (reserved for an offset to a * reordering table) */ - USHORT reqFeatureIndex;/* Index of a feature required for this + UINT16 reqFeatureIndex;/* Index of a feature required for this * language system--if no required features * = 0xFFFFu */ IndexArray featureIndex; /* Array of indices into the FeatureList */ @@ -254,7 +250,7 @@ struct Script inline const LangSys& get_default_lang_sys (void) const { return this+defaultLangSys; } inline bool sanitize (hb_sanitize_context_t *c, - const Record<Script>::sanitize_closure_t * = NULL) const + const Record<Script>::sanitize_closure_t * = nullptr) const { TRACE_SANITIZE (this); return_trace (defaultLangSys.sanitize (c, this) && langSys.sanitize (c, this)); @@ -347,12 +343,12 @@ struct FeatureParamsSize return_trace (true); } - USHORT designSize; /* Represents the design size in 720/inch + UINT16 designSize; /* Represents the design size in 720/inch * units (decipoints). The design size entry * must be non-zero. When there is a design * size but no recommended size range, the * rest of the array will consist of zeros. */ - USHORT subfamilyID; /* Has no independent meaning, but serves + UINT16 subfamilyID; /* Has no independent meaning, but serves * as an identifier that associates fonts * in a subfamily. All fonts which share a * Preferred or Font Family name and which @@ -362,7 +358,7 @@ struct FeatureParamsSize * same subfamily value. If this value is * zero, the remaining fields in the array * will be ignored. */ - USHORT subfamilyNameID;/* If the preceding value is non-zero, this + UINT16 subfamilyNameID;/* If the preceding value is non-zero, this * value must be set in the range 256 - 32767 * (inclusive). It records the value of a * field in the name table, which must @@ -376,10 +372,10 @@ struct FeatureParamsSize * subfamily in a menu. Applications will * choose the appropriate version based on * their selection criteria. */ - USHORT rangeStart; /* Large end of the recommended usage range + UINT16 rangeStart; /* Large end of the recommended usage range * (inclusive), stored in 720/inch units * (decipoints). */ - USHORT rangeEnd; /* Small end of the recommended usage range + UINT16 rangeEnd; /* Small end of the recommended usage range (exclusive), stored in 720/inch units * (decipoints). */ public: @@ -397,12 +393,12 @@ struct FeatureParamsStylisticSet return_trace (c->check_struct (this)); } - USHORT version; /* (set to 0): This corresponds to a “minor” + UINT16 version; /* (set to 0): This corresponds to a “minor” * version number. Additional data may be * added to the end of this Feature Parameters * table in the future. */ - USHORT uiNameID; /* The 'name' table name ID that specifies a + UINT16 uiNameID; /* The 'name' table name ID that specifies a * string (or strings, for multiple languages) * for a user-interface label for this * feature. The values of uiLabelNameId and @@ -430,25 +426,25 @@ struct FeatureParamsCharacterVariants characters.sanitize (c)); } - USHORT format; /* Format number is set to 0. */ - USHORT featUILableNameID; /* The ‘name’ table name ID that + UINT16 format; /* Format number is set to 0. */ + UINT16 featUILableNameID; /* The ‘name’ table name ID that * specifies a string (or strings, * for multiple languages) for a * user-interface label for this - * feature. (May be NULL.) */ - USHORT featUITooltipTextNameID;/* The ‘name’ table name ID that + * feature. (May be nullptr.) */ + UINT16 featUITooltipTextNameID;/* The ‘name’ table name ID that * specifies a string (or strings, * for multiple languages) that an * application can use for tooltip * text for this feature. (May be - * NULL.) */ - USHORT sampleTextNameID; /* The ‘name’ table name ID that + * nullptr.) */ + UINT16 sampleTextNameID; /* The ‘name’ table name ID that * specifies sample text that * illustrates the effect of this - * feature. (May be NULL.) */ - USHORT numNamedParameters; /* Number of named parameters. (May + * feature. (May be nullptr.) */ + UINT16 numNamedParameters; /* Number of named parameters. (May * be zero.) */ - USHORT firstParamUILabelNameID;/* The first ‘name’ table name ID + UINT16 firstParamUILabelNameID;/* The first ‘name’ table name ID * used to specify strings for * user-interface labels for the * feature parameters. (Must be zero @@ -507,7 +503,7 @@ struct Feature { return this+featureParams; } inline bool sanitize (hb_sanitize_context_t *c, - const Record<Feature>::sanitize_closure_t *closure = NULL) const + const Record<Feature>::sanitize_closure_t *closure = nullptr) const { TRACE_SANITIZE (this); if (unlikely (!(c->check_struct (this) && lookupIndex.sanitize (c)))) @@ -566,7 +562,7 @@ struct Feature typedef RecordListOf<Feature> FeatureList; -struct LookupFlag : USHORT +struct LookupFlag : UINT16 { enum Flags { RightToLeft = 0x0001u, @@ -612,7 +608,7 @@ struct Lookup unsigned int flag = lookupFlag; if (unlikely (flag & LookupFlag::UseMarkFilteringSet)) { - const USHORT &markFilteringSet = StructAfter<USHORT> (subTable); + const UINT16 &markFilteringSet = StructAfter<UINT16> (subTable); flag += (markFilteringSet << 16); } return flag; @@ -644,7 +640,7 @@ struct Lookup if (unlikely (!subTable.serialize (c, num_subtables))) return_trace (false); if (lookupFlag & LookupFlag::UseMarkFilteringSet) { - USHORT &markFilteringSet = StructAfter<USHORT> (subTable); + UINT16 &markFilteringSet = StructAfter<UINT16> (subTable); markFilteringSet.set (lookup_props >> 16); } return_trace (true); @@ -657,18 +653,18 @@ struct Lookup if (!(c->check_struct (this) && subTable.sanitize (c))) return_trace (false); if (lookupFlag & LookupFlag::UseMarkFilteringSet) { - const USHORT &markFilteringSet = StructAfter<USHORT> (subTable); + const UINT16 &markFilteringSet = StructAfter<UINT16> (subTable); if (!markFilteringSet.sanitize (c)) return_trace (false); } return_trace (true); } private: - USHORT lookupType; /* Different enumerations for GSUB and GPOS */ - USHORT lookupFlag; /* Lookup qualifiers */ - ArrayOf<Offset<> > + UINT16 lookupType; /* Different enumerations for GSUB and GPOS */ + UINT16 lookupFlag; /* Lookup qualifiers */ + ArrayOf<Offset16> subTable; /* Array of SubTables */ - USHORT markFilteringSetX[VAR]; /* Index (base 0) into GDEF mark glyph sets + UINT16 markFilteringSetX[VAR]; /* Index (base 0) into GDEF mark glyph sets * structure. This field is only present if bit * UseMarkFilteringSet of lookup flags is set. */ public: @@ -690,7 +686,7 @@ struct CoverageFormat1 inline unsigned int get_coverage (hb_codepoint_t glyph_id) const { int i = glyphArray.bsearch (glyph_id); - ASSERT_STATIC (((unsigned int) -1) == NOT_COVERED); + static_assert ((((unsigned int) -1) == NOT_COVERED), ""); return i; } @@ -719,10 +715,8 @@ struct CoverageFormat1 } template <typename set_t> - inline void add_coverage (set_t *glyphs) const { - unsigned int count = glyphArray.len; - for (unsigned int i = 0; i < count; i++) - glyphs->add (glyphArray[i]); + inline bool add_coverage (set_t *glyphs) const { + return glyphs->add_sorted_array (glyphArray.array, glyphArray.len); } public: @@ -741,7 +735,7 @@ struct CoverageFormat1 private: protected: - USHORT coverageFormat; /* Format identifier--format = 1 */ + UINT16 coverageFormat; /* Format identifier--format = 1 */ SortedArrayOf<GlyphID> glyphArray; /* Array of GlyphIDs--in numerical order */ public: @@ -821,10 +815,12 @@ struct CoverageFormat2 } template <typename set_t> - inline void add_coverage (set_t *glyphs) const { + inline bool add_coverage (set_t *glyphs) const { unsigned int count = rangeRecord.len; for (unsigned int i = 0; i < count; i++) - rangeRecord[i].add_coverage (glyphs); + if (unlikely (!rangeRecord[i].add_coverage (glyphs))) + return false; + return true; } public: @@ -864,7 +860,7 @@ struct CoverageFormat2 private: protected: - USHORT coverageFormat; /* Format identifier--format = 2 */ + UINT16 coverageFormat; /* Format identifier--format = 2 */ SortedArrayOf<RangeRecord> rangeRecord; /* Array of glyph ranges--ordered by * Start GlyphID. rangeCount entries @@ -931,17 +927,19 @@ struct Coverage } } + /* Might return false if array looks unsorted. + * Used for faster rejection of corrupt data. */ template <typename set_t> - inline void add_coverage (set_t *glyphs) const { + inline bool add_coverage (set_t *glyphs) const { switch (u.format) { - case 1: u.format1.add_coverage (glyphs); break; - case 2: u.format2.add_coverage (glyphs); break; - default: break; + case 1: return u.format1.add_coverage (glyphs); + case 2: return u.format2.add_coverage (glyphs); + default:return false; } } struct Iter { - Iter (void) : format (0) {}; + Iter (void) : format (0), u () {}; inline void init (const Coverage &c_) { format = c_.u.format; switch (format) { @@ -982,14 +980,14 @@ struct Coverage private: unsigned int format; union { + CoverageFormat2::Iter format2; /* Put this one first since it's larger; helps shut up compiler. */ CoverageFormat1::Iter format1; - CoverageFormat2::Iter format2; } u; }; protected: union { - USHORT format; /* Format identifier */ + UINT16 format; /* Format identifier */ CoverageFormat1 format1; CoverageFormat2 format2; } u; @@ -1022,11 +1020,36 @@ struct ClassDefFormat1 } template <typename set_t> - inline void add_class (set_t *glyphs, unsigned int klass) const { + inline bool add_coverage (set_t *glyphs) const { + unsigned int start = 0; unsigned int count = classValue.len; for (unsigned int i = 0; i < count; i++) + { + if (classValue[i]) + continue; + + if (start != i) + if (unlikely (!glyphs->add_range (startGlyph + start, startGlyph + i))) + return false; + + start = i + 1; + } + if (start != count) + if (unlikely (!glyphs->add_range (startGlyph + start, startGlyph + count))) + return false; + + return true; + } + + template <typename set_t> + inline bool add_class (set_t *glyphs, unsigned int klass) const { + unsigned int count = classValue.len; + for (unsigned int i = 0; i < count; i++) + { if (classValue[i] == klass) glyphs->add (startGlyph + i); + } + return true; } inline bool intersects_class (const hb_set_t *glyphs, unsigned int klass) const { @@ -1051,9 +1074,9 @@ struct ClassDefFormat1 } protected: - USHORT classFormat; /* Format identifier--format = 1 */ + UINT16 classFormat; /* Format identifier--format = 1 */ GlyphID startGlyph; /* First GlyphID of the classValueArray */ - ArrayOf<USHORT> + ArrayOf<UINT16> classValue; /* Array of Class Values--one per GlyphID */ public: DEFINE_SIZE_ARRAY (6, classValue); @@ -1079,11 +1102,25 @@ struct ClassDefFormat2 } template <typename set_t> - inline void add_class (set_t *glyphs, unsigned int klass) const { + inline bool add_coverage (set_t *glyphs) const { unsigned int count = rangeRecord.len; for (unsigned int i = 0; i < count; i++) + if (rangeRecord[i].value) + if (unlikely (!rangeRecord[i].add_coverage (glyphs))) + return false; + return true; + } + + template <typename set_t> + inline bool add_class (set_t *glyphs, unsigned int klass) const { + unsigned int count = rangeRecord.len; + for (unsigned int i = 0; i < count; i++) + { if (rangeRecord[i].value == klass) - rangeRecord[i].add_coverage (glyphs); + if (unlikely (!rangeRecord[i].add_coverage (glyphs))) + return false; + } + return true; } inline bool intersects_class (const hb_set_t *glyphs, unsigned int klass) const { @@ -1111,7 +1148,7 @@ struct ClassDefFormat2 } protected: - USHORT classFormat; /* Format identifier--format = 2 */ + UINT16 classFormat; /* Format identifier--format = 2 */ SortedArrayOf<RangeRecord> rangeRecord; /* Array of glyph ranges--ordered by * Start GlyphID */ @@ -1141,11 +1178,25 @@ struct ClassDef } } - inline void add_class (hb_set_t *glyphs, unsigned int klass) const { + /* Might return false if array looks unsorted. + * Used for faster rejection of corrupt data. */ + template <typename set_t> + inline bool add_coverage (set_t *glyphs) const { + switch (u.format) { + case 1: return u.format1.add_coverage (glyphs); + case 2: return u.format2.add_coverage (glyphs); + default:return false; + } + } + + /* Might return false if array looks unsorted. + * Used for faster rejection of corrupt data. */ + template <typename set_t> + inline bool add_class (set_t *glyphs, unsigned int klass) const { switch (u.format) { - case 1: u.format1.add_class (glyphs, klass); return; - case 2: u.format2.add_class (glyphs, klass); return; - default:return; + case 1: return u.format1.add_class (glyphs, klass); + case 2: return u.format2.add_class (glyphs, klass); + default:return false; } } @@ -1159,7 +1210,7 @@ struct ClassDef protected: union { - USHORT format; /* Format identifier */ + UINT16 format; /* Format identifier */ ClassDefFormat1 format1; ClassDefFormat2 format2; } u; @@ -1244,8 +1295,8 @@ struct VarRegionList } protected: - USHORT axisCount; - USHORT regionCount; + UINT16 axisCount; + UINT16 regionCount; VarRegionAxis axesZ[VAR]; public: DEFINE_SIZE_ARRAY (4, axesZ); @@ -1269,13 +1320,13 @@ struct VarData unsigned int count = regionIndices.len; unsigned int scount = shortCount; - const BYTE *bytes = &StructAfter<BYTE> (regionIndices); - const BYTE *row = bytes + inner * (scount + count); + const UINT8 *bytes = &StructAfter<UINT8> (regionIndices); + const UINT8 *row = bytes + inner * (scount + count); float delta = 0.; unsigned int i = 0; - const SHORT *scursor = reinterpret_cast<const SHORT *> (row); + const INT16 *scursor = reinterpret_cast<const INT16 *> (row); for (; i < scount; i++) { float scalar = regions.evaluate (regionIndices.array[i], coords, coord_count); @@ -1297,15 +1348,15 @@ struct VarData return_trace (c->check_struct (this) && regionIndices.sanitize(c) && shortCount <= regionIndices.len && - c->check_array (&StructAfter<BYTE> (regionIndices), + c->check_array (&StructAfter<UINT8> (regionIndices), get_row_size (), itemCount)); } protected: - USHORT itemCount; - USHORT shortCount; - ArrayOf<USHORT> regionIndices; - BYTE bytesX[VAR]; + UINT16 itemCount; + UINT16 shortCount; + ArrayOf<UINT16> regionIndices; + UINT8 bytesX[VAR]; public: DEFINE_SIZE_ARRAY2 (6, regionIndices, bytesX); }; @@ -1323,6 +1374,14 @@ struct VariationStore this+regions); } + inline float get_delta (unsigned int index, + int *coords, unsigned int coord_count) const + { + unsigned int outer = index >> 16; + unsigned int inner = index & 0xFFFF; + return get_delta (outer, inner, coords, coord_count); + } + inline bool sanitize (hb_sanitize_context_t *c) const { TRACE_SANITIZE (this); @@ -1333,9 +1392,9 @@ struct VariationStore } protected: - USHORT format; - OffsetTo<VarRegionList, ULONG> regions; - OffsetArrayOf<VarData, ULONG> dataSets; + UINT16 format; + LOffsetTo<VarRegionList> regions; + OffsetArrayOf<VarData, UINT32> dataSets; public: DEFINE_SIZE_ARRAY (8, dataSets); }; @@ -1362,8 +1421,8 @@ struct ConditionFormat1 } protected: - USHORT format; /* Format identifier--format = 1 */ - USHORT axisIndex; + UINT16 format; /* Format identifier--format = 1 */ + UINT16 axisIndex; F2DOT14 filterRangeMinValue; F2DOT14 filterRangeMaxValue; public: @@ -1392,7 +1451,7 @@ struct Condition protected: union { - USHORT format; /* Format identifier */ + UINT16 format; /* Format identifier */ ConditionFormat1 format1; } u; public: @@ -1417,7 +1476,7 @@ struct ConditionSet } protected: - OffsetArrayOf<Condition, ULONG> conditions; + OffsetArrayOf<Condition, UINT32> conditions; public: DEFINE_SIZE_ARRAY (2, conditions); }; @@ -1433,8 +1492,8 @@ struct FeatureTableSubstitutionRecord } protected: - USHORT featureIndex; - OffsetTo<Feature, ULONG> feature; + UINT16 featureIndex; + LOffsetTo<Feature> feature; public: DEFINE_SIZE_STATIC (6); }; @@ -1450,7 +1509,7 @@ struct FeatureTableSubstitution if (record.featureIndex == feature_index) return &(this+record.feature); } - return NULL; + return nullptr; } inline bool sanitize (hb_sanitize_context_t *c) const @@ -1481,9 +1540,9 @@ struct FeatureVariationRecord } protected: - OffsetTo<ConditionSet, ULONG> + LOffsetTo<ConditionSet> conditions; - OffsetTo<FeatureTableSubstitution, ULONG> + LOffsetTo<FeatureTableSubstitution> substitutions; public: DEFINE_SIZE_STATIC (8); @@ -1527,7 +1586,7 @@ struct FeatureVariations protected: FixedVersion<> version; /* Version--0x00010000u */ - ArrayOf<FeatureVariationRecord, ULONG> + LArrayOf<FeatureVariationRecord> varRecords; public: DEFINE_SIZE_ARRAY (8, varRecords); @@ -1553,8 +1612,8 @@ struct HintingDevice inline unsigned int get_size (void) const { unsigned int f = deltaFormat; - if (unlikely (f < 1 || f > 3 || startSize > endSize)) return 3 * USHORT::static_size; - return USHORT::static_size * (4 + ((endSize - startSize) >> (4 - f))); + if (unlikely (f < 1 || f > 3 || startSize > endSize)) return 3 * UINT16::static_size; + return UINT16::static_size * (4 + ((endSize - startSize) >> (4 - f))); } inline bool sanitize (hb_sanitize_context_t *c) const @@ -1599,14 +1658,14 @@ struct HintingDevice } protected: - USHORT startSize; /* Smallest size to correct--in ppem */ - USHORT endSize; /* Largest size to correct--in ppem */ - USHORT deltaFormat; /* Format of DeltaValue array data: 1, 2, or 3 + UINT16 startSize; /* Smallest size to correct--in ppem */ + UINT16 endSize; /* Largest size to correct--in ppem */ + UINT16 deltaFormat; /* Format of DeltaValue array data: 1, 2, or 3 * 1 Signed 2-bit value, 8 values per uint16 * 2 Signed 4-bit value, 4 values per uint16 * 3 Signed 8-bit value, 2 values per uint16 */ - USHORT deltaValue[VAR]; /* Array of compressed data */ + UINT16 deltaValue[VAR]; /* Array of compressed data */ public: DEFINE_SIZE_ARRAY (6, deltaValue); }; @@ -1637,9 +1696,9 @@ struct VariationDevice } protected: - USHORT outerIndex; - USHORT innerIndex; - USHORT deltaFormat; /* Format identifier for this table: 0x0x8000 */ + UINT16 outerIndex; + UINT16 innerIndex; + UINT16 deltaFormat; /* Format identifier for this table: 0x0x8000 */ public: DEFINE_SIZE_STATIC (6); }; @@ -1647,10 +1706,10 @@ struct VariationDevice struct DeviceHeader { protected: - USHORT reserved1; - USHORT reserved2; + UINT16 reserved1; + UINT16 reserved2; public: - USHORT format; /* Format identifier */ + UINT16 format; /* Format identifier */ public: DEFINE_SIZE_STATIC (6); }; |