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-rw-r--r--thirdparty/harfbuzz/src/hb-ot-layout-gdef-table.hh376
1 files changed, 272 insertions, 104 deletions
diff --git a/thirdparty/harfbuzz/src/hb-ot-layout-gdef-table.hh b/thirdparty/harfbuzz/src/hb-ot-layout-gdef-table.hh
index 9d47bac2b9..5bc26d9182 100644
--- a/thirdparty/harfbuzz/src/hb-ot-layout-gdef-table.hh
+++ b/thirdparty/harfbuzz/src/hb-ot-layout-gdef-table.hh
@@ -510,6 +510,101 @@ struct MarkGlyphSets
*/
+template <typename Types>
+struct GDEFVersion1_2
+{
+ friend struct GDEF;
+
+ protected:
+ FixedVersion<>version; /* Version of the GDEF table--currently
+ * 0x00010003u */
+ typename Types::template OffsetTo<ClassDef>
+ glyphClassDef; /* Offset to class definition table
+ * for glyph type--from beginning of
+ * GDEF header (may be Null) */
+ typename Types::template OffsetTo<AttachList>
+ attachList; /* Offset to list of glyphs with
+ * attachment points--from beginning
+ * of GDEF header (may be Null) */
+ typename Types::template OffsetTo<LigCaretList>
+ ligCaretList; /* Offset to list of positioning points
+ * for ligature carets--from beginning
+ * of GDEF header (may be Null) */
+ typename Types::template OffsetTo<ClassDef>
+ markAttachClassDef; /* Offset to class definition table for
+ * mark attachment type--from beginning
+ * of GDEF header (may be Null) */
+ typename Types::template OffsetTo<MarkGlyphSets>
+ markGlyphSetsDef; /* Offset to the table of mark set
+ * definitions--from beginning of GDEF
+ * header (may be NULL). Introduced
+ * in version 0x00010002. */
+ Offset32To<VariationStore>
+ varStore; /* Offset to the table of Item Variation
+ * Store--from beginning of GDEF
+ * header (may be NULL). Introduced
+ * in version 0x00010003. */
+ public:
+ DEFINE_SIZE_MIN (4 + 4 * Types::size);
+
+ unsigned int get_size () const
+ {
+ return min_size +
+ (version.to_int () >= 0x00010002u ? markGlyphSetsDef.static_size : 0) +
+ (version.to_int () >= 0x00010003u ? varStore.static_size : 0);
+ }
+
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (version.sanitize (c) &&
+ glyphClassDef.sanitize (c, this) &&
+ attachList.sanitize (c, this) &&
+ ligCaretList.sanitize (c, this) &&
+ markAttachClassDef.sanitize (c, this) &&
+ (version.to_int () < 0x00010002u || markGlyphSetsDef.sanitize (c, this)) &&
+ (version.to_int () < 0x00010003u || varStore.sanitize (c, this)));
+ }
+
+ bool subset (hb_subset_context_t *c) const
+ {
+ TRACE_SUBSET (this);
+ auto *out = c->serializer->embed (*this);
+ if (unlikely (!out)) return_trace (false);
+
+ bool subset_glyphclassdef = out->glyphClassDef.serialize_subset (c, glyphClassDef, this, nullptr, false, true);
+ bool subset_attachlist = out->attachList.serialize_subset (c, attachList, this);
+ bool subset_ligcaretlist = out->ligCaretList.serialize_subset (c, ligCaretList, this);
+ bool subset_markattachclassdef = out->markAttachClassDef.serialize_subset (c, markAttachClassDef, this, nullptr, false, true);
+
+ bool subset_markglyphsetsdef = false;
+ if (version.to_int () >= 0x00010002u)
+ {
+ subset_markglyphsetsdef = out->markGlyphSetsDef.serialize_subset (c, markGlyphSetsDef, this);
+ }
+
+ bool subset_varstore = false;
+ if (version.to_int () >= 0x00010003u)
+ {
+ subset_varstore = out->varStore.serialize_subset (c, varStore, this);
+ }
+
+ if (subset_varstore)
+ {
+ out->version.minor = 3;
+ } else if (subset_markglyphsetsdef) {
+ out->version.minor = 2;
+ } else {
+ out->version.minor = 0;
+ }
+
+ return_trace (subset_glyphclassdef || subset_attachlist ||
+ subset_ligcaretlist || subset_markattachclassdef ||
+ (out->version.to_int () >= 0x00010002u && subset_markglyphsetsdef) ||
+ (out->version.to_int () >= 0x00010003u && subset_varstore));
+ }
+};
+
struct GDEF
{
static constexpr hb_tag_t tableTag = HB_OT_TAG_GDEF;
@@ -522,42 +617,190 @@ struct GDEF
ComponentGlyph = 4
};
- bool has_data () const { return version.to_int (); }
- bool has_glyph_classes () const { return glyphClassDef != 0; }
+ unsigned int get_size () const
+ {
+ switch (u.version.major) {
+ case 1: return u.version1.get_size ();
+#ifndef HB_NO_BEYOND_64K
+ case 2: return u.version2.get_size ();
+#endif
+ default: return u.version.static_size;
+ }
+ }
+
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ if (unlikely (!u.version.sanitize (c))) return_trace (false);
+ switch (u.version.major) {
+ case 1: return_trace (u.version1.sanitize (c));
+#ifndef HB_NO_BEYOND_64K
+ case 2: return_trace (u.version2.sanitize (c));
+#endif
+ default: return_trace (true);
+ }
+ }
+
+ bool subset (hb_subset_context_t *c) const
+ {
+ switch (u.version.major) {
+ case 1: return u.version1.subset (c);
+#ifndef HB_NO_BEYOND_64K
+ case 2: return u.version2.subset (c);
+#endif
+ default: return false;
+ }
+ }
+
+ bool has_glyph_classes () const
+ {
+ switch (u.version.major) {
+ case 1: return u.version1.glyphClassDef != 0;
+#ifndef HB_NO_BEYOND_64K
+ case 2: return u.version2.glyphClassDef != 0;
+#endif
+ default: return false;
+ }
+ }
+ const ClassDef &get_glyph_class_def () const
+ {
+ switch (u.version.major) {
+ case 1: return this+u.version1.glyphClassDef;
+#ifndef HB_NO_BEYOND_64K
+ case 2: return this+u.version2.glyphClassDef;
+#endif
+ default: return Null(ClassDef);
+ }
+ }
+ bool has_attach_list () const
+ {
+ switch (u.version.major) {
+ case 1: return u.version1.attachList != 0;
+#ifndef HB_NO_BEYOND_64K
+ case 2: return u.version2.attachList != 0;
+#endif
+ default: return false;
+ }
+ }
+ const AttachList &get_attach_list () const
+ {
+ switch (u.version.major) {
+ case 1: return this+u.version1.attachList;
+#ifndef HB_NO_BEYOND_64K
+ case 2: return this+u.version2.attachList;
+#endif
+ default: return Null(AttachList);
+ }
+ }
+ bool has_lig_carets () const
+ {
+ switch (u.version.major) {
+ case 1: return u.version1.ligCaretList != 0;
+#ifndef HB_NO_BEYOND_64K
+ case 2: return u.version2.ligCaretList != 0;
+#endif
+ default: return false;
+ }
+ }
+ const LigCaretList &get_lig_caret_list () const
+ {
+ switch (u.version.major) {
+ case 1: return this+u.version1.ligCaretList;
+#ifndef HB_NO_BEYOND_64K
+ case 2: return this+u.version2.ligCaretList;
+#endif
+ default: return Null(LigCaretList);
+ }
+ }
+ bool has_mark_attachment_types () const
+ {
+ switch (u.version.major) {
+ case 1: return u.version1.markAttachClassDef != 0;
+#ifndef HB_NO_BEYOND_64K
+ case 2: return u.version2.markAttachClassDef != 0;
+#endif
+ default: return false;
+ }
+ }
+ const ClassDef &get_mark_attach_class_def () const
+ {
+ switch (u.version.major) {
+ case 1: return this+u.version1.markAttachClassDef;
+#ifndef HB_NO_BEYOND_64K
+ case 2: return this+u.version2.markAttachClassDef;
+#endif
+ default: return Null(ClassDef);
+ }
+ }
+ bool has_mark_glyph_sets () const
+ {
+ switch (u.version.major) {
+ case 1: return u.version.to_int () >= 0x00010002u && u.version1.markGlyphSetsDef != 0;
+#ifndef HB_NO_BEYOND_64K
+ case 2: return u.version2.markGlyphSetsDef != 0;
+#endif
+ default: return false;
+ }
+ }
+ const MarkGlyphSets &get_mark_glyph_sets () const
+ {
+ switch (u.version.major) {
+ case 1: return u.version.to_int () >= 0x00010002u ? this+u.version1.markGlyphSetsDef : Null(MarkGlyphSets);
+#ifndef HB_NO_BEYOND_64K
+ case 2: return this+u.version2.markGlyphSetsDef;
+#endif
+ default: return Null(MarkGlyphSets);
+ }
+ }
+ bool has_var_store () const
+ {
+ switch (u.version.major) {
+ case 1: return u.version.to_int () >= 0x00010003u && u.version1.varStore != 0;
+#ifndef HB_NO_BEYOND_64K
+ case 2: return u.version2.varStore != 0;
+#endif
+ default: return false;
+ }
+ }
+ const VariationStore &get_var_store () const
+ {
+ switch (u.version.major) {
+ case 1: return u.version.to_int () >= 0x00010003u ? this+u.version1.varStore : Null(VariationStore);
+#ifndef HB_NO_BEYOND_64K
+ case 2: return this+u.version2.varStore;
+#endif
+ default: return Null(VariationStore);
+ }
+ }
+
+
+ bool has_data () const { return u.version.to_int (); }
unsigned int get_glyph_class (hb_codepoint_t glyph) const
- { return (this+glyphClassDef).get_class (glyph); }
+ { return get_glyph_class_def ().get_class (glyph); }
void get_glyphs_in_class (unsigned int klass, hb_set_t *glyphs) const
- { (this+glyphClassDef).collect_class (glyphs, klass); }
+ { get_glyph_class_def ().collect_class (glyphs, klass); }
- bool has_mark_attachment_types () const { return markAttachClassDef != 0; }
unsigned int get_mark_attachment_type (hb_codepoint_t glyph) const
- { return (this+markAttachClassDef).get_class (glyph); }
+ { return get_mark_attach_class_def ().get_class (glyph); }
- bool has_attach_points () const { return attachList != 0; }
unsigned int get_attach_points (hb_codepoint_t glyph_id,
unsigned int start_offset,
unsigned int *point_count /* IN/OUT */,
unsigned int *point_array /* OUT */) const
- { return (this+attachList).get_attach_points (glyph_id, start_offset, point_count, point_array); }
+ { return get_attach_list ().get_attach_points (glyph_id, start_offset, point_count, point_array); }
- bool has_lig_carets () const { return ligCaretList != 0; }
unsigned int get_lig_carets (hb_font_t *font,
hb_direction_t direction,
hb_codepoint_t glyph_id,
unsigned int start_offset,
unsigned int *caret_count /* IN/OUT */,
hb_position_t *caret_array /* OUT */) const
- { return (this+ligCaretList).get_lig_carets (font,
- direction, glyph_id, get_var_store(),
- start_offset, caret_count, caret_array); }
+ { return get_lig_caret_list ().get_lig_carets (font,
+ direction, glyph_id, get_var_store(),
+ start_offset, caret_count, caret_array); }
- bool has_mark_sets () const { return version.to_int () >= 0x00010002u && markGlyphSetsDef != 0; }
bool mark_set_covers (unsigned int set_index, hb_codepoint_t glyph_id) const
- { return version.to_int () >= 0x00010002u && (this+markGlyphSetsDef).covers (set_index, glyph_id); }
-
- bool has_var_store () const { return version.to_int () >= 0x00010003u && varStore != 0; }
- const VariationStore &get_var_store () const
- { return version.to_int () >= 0x00010003u ? this+varStore : Null (VariationStore); }
+ { return get_mark_glyph_sets ().covers (set_index, glyph_id); }
/* glyph_props is a 16-bit integer where the lower 8-bit have bits representing
* glyph class and other bits, and high 8-bit the mark attachment type (if any).
@@ -599,20 +842,13 @@ struct GDEF
hb_blob_ptr_t<GDEF> table;
};
- unsigned int get_size () const
- {
- return min_size +
- (version.to_int () >= 0x00010002u ? markGlyphSetsDef.static_size : 0) +
- (version.to_int () >= 0x00010003u ? varStore.static_size : 0);
- }
-
void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
- { (this+ligCaretList).collect_variation_indices (c); }
+ { get_lig_caret_list ().collect_variation_indices (c); }
void remap_layout_variation_indices (const hb_set_t *layout_variation_indices,
hb_map_t *layout_variation_idx_map /* OUT */) const
{
- if (version.to_int () < 0x00010003u || !varStore) return;
+ if (!has_var_store ()) return;
if (layout_variation_indices->is_empty ()) return;
unsigned new_major = 0, new_minor = 0;
@@ -620,7 +856,7 @@ struct GDEF
for (unsigned idx : layout_variation_indices->iter ())
{
uint16_t major = idx >> 16;
- if (major >= (this+varStore).get_sub_table_count ()) break;
+ if (major >= get_var_store ().get_sub_table_count ()) break;
if (major != last_major)
{
new_minor = 0;
@@ -634,84 +870,16 @@ struct GDEF
}
}
- bool subset (hb_subset_context_t *c) const
- {
- TRACE_SUBSET (this);
- auto *out = c->serializer->embed (*this);
- if (unlikely (!out)) return_trace (false);
-
- bool subset_glyphclassdef = out->glyphClassDef.serialize_subset (c, glyphClassDef, this, nullptr, false, true);
- bool subset_attachlist = out->attachList.serialize_subset (c, attachList, this);
- bool subset_ligcaretlist = out->ligCaretList.serialize_subset (c, ligCaretList, this);
- bool subset_markattachclassdef = out->markAttachClassDef.serialize_subset (c, markAttachClassDef, this, nullptr, false, true);
-
- bool subset_markglyphsetsdef = true;
- if (version.to_int () >= 0x00010002u)
- {
- subset_markglyphsetsdef = out->markGlyphSetsDef.serialize_subset (c, markGlyphSetsDef, this);
- if (!subset_markglyphsetsdef &&
- version.to_int () == 0x00010002u)
- out->version.minor = 0;
- }
-
- bool subset_varstore = true;
- if (version.to_int () >= 0x00010003u)
- {
- subset_varstore = out->varStore.serialize_subset (c, varStore, this);
- if (!subset_varstore && version.to_int () == 0x00010003u)
- out->version.minor = 2;
- }
-
- return_trace (subset_glyphclassdef || subset_attachlist ||
- subset_ligcaretlist || subset_markattachclassdef ||
- (out->version.to_int () >= 0x00010002u && subset_markglyphsetsdef) ||
- (out->version.to_int () >= 0x00010003u && subset_varstore));
- }
-
- bool sanitize (hb_sanitize_context_t *c) const
- {
- TRACE_SANITIZE (this);
- return_trace (version.sanitize (c) &&
- likely (version.major == 1) &&
- glyphClassDef.sanitize (c, this) &&
- attachList.sanitize (c, this) &&
- ligCaretList.sanitize (c, this) &&
- markAttachClassDef.sanitize (c, this) &&
- (version.to_int () < 0x00010002u || markGlyphSetsDef.sanitize (c, this)) &&
- (version.to_int () < 0x00010003u || varStore.sanitize (c, this)));
- }
-
protected:
- FixedVersion<>version; /* Version of the GDEF table--currently
- * 0x00010003u */
- Offset16To<ClassDef>
- glyphClassDef; /* Offset to class definition table
- * for glyph type--from beginning of
- * GDEF header (may be Null) */
- Offset16To<AttachList>
- attachList; /* Offset to list of glyphs with
- * attachment points--from beginning
- * of GDEF header (may be Null) */
- Offset16To<LigCaretList>
- ligCaretList; /* Offset to list of positioning points
- * for ligature carets--from beginning
- * of GDEF header (may be Null) */
- Offset16To<ClassDef>
- markAttachClassDef; /* Offset to class definition table for
- * mark attachment type--from beginning
- * of GDEF header (may be Null) */
- Offset16To<MarkGlyphSets>
- markGlyphSetsDef; /* Offset to the table of mark set
- * definitions--from beginning of GDEF
- * header (may be NULL). Introduced
- * in version 0x00010002. */
- Offset32To<VariationStore>
- varStore; /* Offset to the table of Item Variation
- * Store--from beginning of GDEF
- * header (may be NULL). Introduced
- * in version 0x00010003. */
+ union {
+ FixedVersion<> version; /* Version identifier */
+ GDEFVersion1_2<SmallTypes> version1;
+#ifndef HB_NO_BEYOND_64K
+ GDEFVersion1_2<MediumTypes> version2;
+#endif
+ } u;
public:
- DEFINE_SIZE_MIN (12);
+ DEFINE_SIZE_MIN (4);
};
struct GDEF_accelerator_t : GDEF::accelerator_t {