[HB] Use ArrayOf<> in GSUB
This commit is contained in:
Behdad Esfahbod
parent
5f810363ac
commit
c9a7cbe9cb
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@ -50,7 +50,8 @@ struct GlyphClassDef : ClassDef {
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*/
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struct AttachPoint {
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Array pointIndex; /* Array of contour point indices--in
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ArrayOf<USHORT>
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pointIndex; /* Array of contour point indices--in
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* increasing numerical order */
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};
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ASSERT_SIZE (AttachPoint, 2);
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@ -84,7 +84,7 @@ struct SingleSubstFormat2 {
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unsigned int index = (this+coverage) (glyph_id);
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if (index >= glyphCount)
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if (index >= substitute.len)
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return false;
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glyph_id = substitute[index];
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@ -96,9 +96,8 @@ struct SingleSubstFormat2 {
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OffsetTo<Coverage>
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coverage; /* Offset to Coverage table--from
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* beginning of Substitution table */
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USHORT glyphCount; /* Number of GlyphIDs in the Substitute
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* array */
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GlyphID substitute[]; /* Array of substitute
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ArrayOf<GlyphID>
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substitute; /* Array of substitute
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* GlyphIDs--ordered by Coverage Index */
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};
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ASSERT_SIZE (SingleSubstFormat2, 6);
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@ -154,23 +153,21 @@ struct Sequence {
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friend struct MultipleSubstFormat1;
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private:
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/* GlyphID tables, in Coverage Index order */
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DEFINE_OFFSET_ARRAY_TYPE (GlyphID, substitute, glyphCount);
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inline void set_glyph_class (hb_ot_layout_t *layout, unsigned int property) const {
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unsigned int count = glyphCount;
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unsigned int count = substitute.len;
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for (unsigned int n = 0; n < count; n++)
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_hb_ot_layout_set_glyph_property (layout, substitute[n], property);
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}
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inline bool substitute_sequence (SUBTABLE_SUBSTITUTE_ARGS_DEF, unsigned int property) const {
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if (HB_UNLIKELY (!get_len ()))
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if (HB_UNLIKELY (!substitute.len))
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return false;
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_hb_buffer_add_output_glyph_ids (buffer, 1,
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glyphCount, substitute,
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substitute.len, substitute.array,
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0xFFFF, 0xFFFF);
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if ( _hb_ot_layout_has_new_glyph_classes (layout) )
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@ -187,10 +184,8 @@ struct Sequence {
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}
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private:
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USHORT glyphCount; /* Number of GlyphIDs in the Substitute
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* array. This should always be
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* greater than 0. */
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GlyphID substitute[]; /* String of GlyphIDs to substitute */
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ArrayOf<GlyphID>
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substitute; /* String of GlyphIDs to substitute */
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};
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ASSERT_SIZE (Sequence, 2);
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@ -199,8 +194,6 @@ struct MultipleSubstFormat1 {
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friend struct MultipleSubst;
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private:
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/* Sequence tables, in Coverage Index order */
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DEFINE_OFFSET_ARRAY_TYPE (Sequence, sequence, sequenceCount);
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inline bool substitute (SUBTABLE_SUBSTITUTE_ARGS_DEF) const {
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@ -208,12 +201,8 @@ struct MultipleSubstFormat1 {
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if (!_hb_ot_layout_check_glyph_property (layout, IN_CURITEM (), lookup_flag, &property))
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return false;
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hb_codepoint_t glyph_id = IN_CURGLYPH ();
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unsigned int index = (this+coverage) (glyph_id);
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const Sequence &seq = (*this)[index];
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return seq.substitute_sequence (SUBTABLE_SUBSTITUTE_ARGS, property);
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unsigned int index = (this+coverage) (IN_CURGLYPH ());
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return (this+sequence[index]).substitute_sequence (SUBTABLE_SUBSTITUTE_ARGS, property);
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}
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private:
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@ -221,12 +210,9 @@ struct MultipleSubstFormat1 {
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OffsetTo<Coverage>
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coverage; /* Offset to Coverage table--from
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* beginning of Substitution table */
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USHORT sequenceCount; /* Number of Sequence table offsets in
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* the Sequence array */
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Offset sequence[]; /* Array of offsets to Sequence
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* tables--from beginning of
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* Substitution table--ordered by
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* Coverage Index */
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OffsetArrayOf<Sequence>
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sequence; /* Array of Sequence tables
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* ordered by Coverage Index */
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};
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ASSERT_SIZE (MultipleSubstFormat1, 6);
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@ -252,17 +238,8 @@ struct MultipleSubst {
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DEFINE_NULL (MultipleSubst, 2);
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struct AlternateSet {
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/* GlyphIDs, in no particular order */
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DEFINE_ARRAY_TYPE (GlyphID, alternate, glyphCount);
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private:
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USHORT glyphCount; /* Number of GlyphIDs in the Alternate
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* array */
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GlyphID alternate[]; /* Array of alternate GlyphIDs--in
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typedef ArrayOf<GlyphID> AlternateSet; /* Array of alternate GlyphIDs--in
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* arbitrary order */
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};
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ASSERT_SIZE (AlternateSet, 2);
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struct AlternateSubstFormat1 {
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@ -270,8 +247,6 @@ struct AlternateSubstFormat1 {
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friend struct AlternateSubst;
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private:
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/* AlternateSet tables, in Coverage Index order */
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DEFINE_OFFSET_ARRAY_TYPE (AlternateSet, alternateSet, alternateSetCount);
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inline bool substitute (SUBTABLE_SUBSTITUTE_ARGS_DEF) const {
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@ -282,10 +257,9 @@ struct AlternateSubstFormat1 {
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hb_codepoint_t glyph_id = IN_CURGLYPH ();
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unsigned int index = (this+coverage) (glyph_id);
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const AlternateSet &alt_set = this+alternateSet[index];
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const AlternateSet &alt_set = (*this)[index];
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if (HB_UNLIKELY (!alt_set.get_len ()))
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if (HB_UNLIKELY (!alt_set.len))
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return false;
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unsigned int alt_index = 0;
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@ -297,7 +271,7 @@ struct AlternateSubstFormat1 {
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gsub->data );
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*/
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if (HB_UNLIKELY (alt_index >= alt_set.get_len ()))
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if (HB_UNLIKELY (alt_index >= alt_set.len))
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return false;
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glyph_id = alt_set[alt_index];
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@ -318,11 +292,9 @@ struct AlternateSubstFormat1 {
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OffsetTo<Coverage>
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coverage; /* Offset to Coverage table--from
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* beginning of Substitution table */
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USHORT alternateSetCount; /* Number of AlternateSet tables */
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Offset alternateSet[]; /* Array of offsets to AlternateSet
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* tables--from beginning of
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* Substitution table--ordered by
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* Coverage Index */
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OffsetArrayOf<AlternateSet>
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alternateSet; /* Array of AlternateSet tables
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* ordered by Coverage Index */
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};
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ASSERT_SIZE (AlternateSubstFormat1, 6);
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@ -435,13 +407,12 @@ struct LigatureSet {
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friend struct LigatureSubstFormat1;
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private:
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DEFINE_OFFSET_ARRAY_TYPE (Ligature, ligature, ligatureCount);
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inline bool substitute_ligature (SUBTABLE_SUBSTITUTE_ARGS_DEF, bool is_mark) const {
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unsigned int num_ligs = get_len ();
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unsigned int num_ligs = ligature.len;
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for (unsigned int i = 0; i < num_ligs; i++) {
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const Ligature &lig = (*this)[i];
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const Ligature &lig = this+ligature[i];
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if (lig.substitute_ligature (SUBTABLE_SUBSTITUTE_ARGS, is_mark))
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return true;
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}
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@ -450,11 +421,9 @@ struct LigatureSet {
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}
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private:
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USHORT ligatureCount; /* Number of Ligature tables */
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Offset ligature[]; /* Array of offsets to Ligature
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* tables--from beginning of
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* LigatureSet table--ordered by
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* preference */
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OffsetArrayOf<Ligature>
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ligature; /* Array LigatureSet tables
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* ordered by preference */
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};
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ASSERT_SIZE (LigatureSet, 2);
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@ -463,8 +432,6 @@ struct LigatureSubstFormat1 {
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friend struct LigatureSubst;
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private:
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/* LigatureSet tables, in Coverage Index order */
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DEFINE_OFFSET_ARRAY_TYPE (LigatureSet, ligatureSet, ligSetCount);
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inline bool substitute (SUBTABLE_SUBSTITUTE_ARGS_DEF) const {
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@ -474,12 +441,11 @@ struct LigatureSubstFormat1 {
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hb_codepoint_t glyph_id = IN_CURGLYPH ();
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unsigned int index = (this+coverage) (glyph_id);
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bool first_is_mark = (property == HB_OT_LAYOUT_GLYPH_CLASS_MARK ||
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property & LookupFlag::MarkAttachmentType);
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const LigatureSet &lig_set = (*this)[index];
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unsigned int index = (this+coverage) (glyph_id);
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const LigatureSet &lig_set = this+ligatureSet[index];
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return lig_set.substitute_ligature (SUBTABLE_SUBSTITUTE_ARGS, first_is_mark);
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}
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@ -488,11 +454,9 @@ struct LigatureSubstFormat1 {
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OffsetTo<Coverage>
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coverage; /* Offset to Coverage table--from
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* beginning of Substitution table */
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USHORT ligSetCount; /* Number of LigatureSet tables */
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Offset ligatureSet[]; /* Array of offsets to LigatureSet
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* tables--from beginning of
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* Substitution table--ordered by
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* Coverage Index */
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OffsetArrayOf<LigatureSet>\
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ligatureSet; /* Array LigatureSet tables
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* ordered by Coverage Index */
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};
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ASSERT_SIZE (LigatureSubstFormat1, 6);
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@ -608,13 +572,12 @@ struct SubRuleSet {
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friend struct ContextSubstFormat1;
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private:
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DEFINE_OFFSET_ARRAY_TYPE (SubRule, subRule, subRuleCount);
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inline bool substitute (SUBTABLE_SUBSTITUTE_ARGS_DEF) const {
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unsigned int num_rules = get_len ();
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unsigned int num_rules = subRule.len;
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for (unsigned int i = 0; i < num_rules; i++) {
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const SubRule &rule = (*this)[i];
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const SubRule &rule = this+subRule[i];
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if (rule.substitute (SUBTABLE_SUBSTITUTE_ARGS))
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return true;
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}
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@ -623,10 +586,9 @@ struct SubRuleSet {
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}
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private:
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USHORT subRuleCount; /* Number of SubRule tables */
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Offset subRule[]; /* Array of offsets to SubRule
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* tables--from beginning of SubRuleSet
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* table--ordered by preference */
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OffsetArrayOf<SubRule>
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subRule; /* Array SubRule tables
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* ordered by preference */
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};
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ASSERT_SIZE (SubRuleSet, 2);
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@ -635,8 +597,6 @@ struct ContextSubstFormat1 {
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friend struct ContextSubst;
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private:
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/* SubRuleSet tables, in Coverage Index order */
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DEFINE_OFFSET_ARRAY_TYPE (SubRuleSet, subRuleSet, subRuleSetCount);
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inline bool substitute (SUBTABLE_SUBSTITUTE_ARGS_DEF) const {
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@ -644,11 +604,8 @@ struct ContextSubstFormat1 {
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if (!_hb_ot_layout_check_glyph_property (layout, IN_CURITEM (), lookup_flag, &property))
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return false;
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hb_codepoint_t glyph_id = IN_CURGLYPH ();
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unsigned int index = (this+coverage) (glyph_id);
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const SubRuleSet &rule_set = (*this)[index];
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unsigned int index = (this+coverage) (IN_CURGLYPH ());
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const SubRuleSet &rule_set = this+subRuleSet[index];
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return rule_set.substitute (SUBTABLE_SUBSTITUTE_ARGS);
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}
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@ -657,12 +614,9 @@ struct ContextSubstFormat1 {
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OffsetTo<Coverage>
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coverage; /* Offset to Coverage table--from
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* beginning of Substitution table */
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USHORT subRuleSetCount; /* Number of SubRuleSet tables--must
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* equal GlyphCount in Coverage table */
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Offset subRuleSet[]; /* Array of offsets to SubRuleSet
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* tables--from beginning of
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* Substitution table--ordered by
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* Coverage Index */
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OffsetArrayOf<SubRuleSet>
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subRuleSet; /* Array of SubRuleSet tables
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* ordered by Coverage Index */
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};
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ASSERT_SIZE (ContextSubstFormat1, 6);
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@ -747,7 +701,6 @@ struct SubClassSet {
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friend struct ContextSubstFormat2;
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private:
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DEFINE_OFFSET_ARRAY_TYPE (SubClassRule, subClassRule, subClassRuleCnt);
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inline bool substitute_class (SUBTABLE_SUBSTITUTE_ARGS_DEF, const ClassDef &class_def) const {
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@ -755,9 +708,9 @@ struct SubClassSet {
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* them across subrule lookups. Not sure it's worth it.
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*/
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unsigned int num_rules = get_len ();
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unsigned int num_rules = subClassRule.len;
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for (unsigned int i = 0; i < num_rules; i++) {
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const SubClassRule &rule = (*this)[i];
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const SubClassRule &rule = this+subClassRule[i];
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if (rule.substitute_class (SUBTABLE_SUBSTITUTE_ARGS, class_def))
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return true;
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}
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@ -766,10 +719,9 @@ struct SubClassSet {
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}
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private:
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USHORT subClassRuleCnt; /* Number of SubClassRule tables */
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Offset subClassRule[]; /* Array of offsets to SubClassRule
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* tables--from beginning of
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* SubClassSet--ordered by preference */
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OffsetArrayOf<SubClassRule>
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subClassRule; /* Array of SubClassRule tables
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* ordered by preference */
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};
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ASSERT_SIZE (SubClassSet, 2);
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@ -778,8 +730,6 @@ struct ContextSubstFormat2 {
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friend struct ContextSubst;
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private:
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/* SubClassSet tables, in Coverage Index order */
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DEFINE_OFFSET_ARRAY_TYPE (SubClassSet, subClassSet, subClassSetCnt);
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inline bool substitute (SUBTABLE_SUBSTITUTE_ARGS_DEF) const {
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@ -787,11 +737,8 @@ struct ContextSubstFormat2 {
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if (!_hb_ot_layout_check_glyph_property (layout, IN_CURITEM (), lookup_flag, &property))
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return false;
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hb_codepoint_t glyph_id = IN_CURGLYPH ();
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unsigned int index = (this+coverage) (glyph_id);
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const SubClassSet &class_set = (*this)[index];
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unsigned int index = (this+coverage) (IN_CURGLYPH ());
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const SubClassSet &class_set = this+subClassSet[index];
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return class_set.substitute_class (SUBTABLE_SUBSTITUTE_ARGS, this+classDef);
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}
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@ -803,11 +750,9 @@ struct ContextSubstFormat2 {
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OffsetTo<ClassDef>
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classDef; /* Offset to glyph ClassDef table--from
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* beginning of Substitution table */
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USHORT subClassSetCnt; /* Number of SubClassSet tables */
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Offset subClassSet[]; /* Array of offsets to SubClassSet
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* tables--from beginning of
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* Substitution table--ordered by
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* class--may be NULL */
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OffsetArrayOf<SubClassSet>
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subClassSet; /* Array of SubClassSet tables
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* ordered by class */
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};
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ASSERT_SIZE (ContextSubstFormat2, 8);
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@ -336,7 +336,6 @@ struct OffsetTo : Offset {
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return * (const Type *) ((const char *) base + offset);
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}
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};
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template <typename Base, typename Type>
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inline const Type& operator + (const Base &base, OffsetTo<Type> offset) {
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return offset(base);
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@ -384,13 +383,9 @@ struct ArrayOf {
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}
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USHORT len;
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private:
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Type array[];
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};
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/* Array of USHORT's */
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typedef ArrayOf<USHORT> Array;
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/* Array of Offset's */
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template <typename Type>
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struct OffsetArrayOf : ArrayOf<OffsetTo<Type> > {
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