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-rw-r--r--src/3rdparty/harfbuzz-ng/src/hb-ot-layout-common-private.hh97
1 files changed, 74 insertions, 23 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 abd063c896..3db7f57ab4 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
@@ -37,6 +37,12 @@
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)
#define MAX_NESTING_LEVEL 8
#define MAX_CONTEXT_LENGTH 64
@@ -63,9 +69,10 @@ struct Record
struct sanitize_closure_t {
hb_tag_t tag;
- void *list_base;
+ const void *list_base;
};
- inline bool sanitize (hb_sanitize_context_t *c, void *base) {
+ inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
+ {
TRACE_SANITIZE (this);
const sanitize_closure_t closure = {tag, base};
return TRACE_RETURN (c->check_struct (this) && offset.sanitize (c, base, &closure));
@@ -121,7 +128,8 @@ struct RecordListOf : RecordArrayOf<Type>
inline const Type& operator [] (unsigned int i) const
{ return this+RecordArrayOf<Type>::operator [](i).offset; }
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
return TRACE_RETURN (RecordArrayOf<Type>::sanitize (c, this));
}
@@ -134,7 +142,8 @@ struct RangeRecord
return g < start ? -1 : g <= end ? 0 : +1 ;
}
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
return TRACE_RETURN (c->check_struct (this));
}
@@ -199,7 +208,8 @@ struct LangSys
}
inline bool sanitize (hb_sanitize_context_t *c,
- const Record<LangSys>::sanitize_closure_t * = NULL) {
+ const Record<LangSys>::sanitize_closure_t * = NULL) const
+ {
TRACE_SANITIZE (this);
return TRACE_RETURN (c->check_struct (this) && featureIndex.sanitize (c));
}
@@ -238,7 +248,8 @@ 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 Record<Script>::sanitize_closure_t * = NULL) const
+ {
TRACE_SANITIZE (this);
return TRACE_RETURN (defaultLangSys.sanitize (c, this) && langSys.sanitize (c, this));
}
@@ -260,7 +271,8 @@ typedef RecordListOf<Script> ScriptList;
/* http://www.microsoft.com/typography/otspec/features_pt.htm#size */
struct FeatureParamsSize
{
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
if (unlikely (!c->check_struct (this))) return TRACE_RETURN (false);
@@ -371,7 +383,8 @@ struct FeatureParamsSize
/* http://www.microsoft.com/typography/otspec/features_pt.htm#ssxx */
struct FeatureParamsStylisticSet
{
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
/* Right now minorVersion is at zero. Which means, any table supports
* the uiNameID field. */
@@ -404,7 +417,8 @@ struct FeatureParamsStylisticSet
/* http://www.microsoft.com/typography/otspec/features_ae.htm#cv01-cv99 */
struct FeatureParamsCharacterVariants
{
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
return TRACE_RETURN (c->check_struct (this) &&
characters.sanitize (c));
@@ -444,7 +458,8 @@ struct FeatureParamsCharacterVariants
struct FeatureParams
{
- inline bool sanitize (hb_sanitize_context_t *c, hb_tag_t tag) {
+ inline bool sanitize (hb_sanitize_context_t *c, hb_tag_t tag) const
+ {
TRACE_SANITIZE (this);
if (tag == HB_TAG ('s','i','z','e'))
return TRACE_RETURN (u.size.sanitize (c));
@@ -486,7 +501,8 @@ struct Feature
{ return this+featureParams; }
inline bool sanitize (hb_sanitize_context_t *c,
- const Record<Feature>::sanitize_closure_t *closure) {
+ const Record<Feature>::sanitize_closure_t *closure) const
+ {
TRACE_SANITIZE (this);
if (unlikely (!(c->check_struct (this) && lookupIndex.sanitize (c))))
return TRACE_RETURN (false);
@@ -561,6 +577,17 @@ struct Lookup
{
inline unsigned int get_subtable_count (void) const { return subTable.len; }
+ template <typename SubTableType>
+ inline const SubTableType& get_subtable (unsigned int i) const
+ { return this+CastR<OffsetArrayOf<SubTableType> > (subTable)[i]; }
+
+ template <typename SubTableType>
+ inline const OffsetArrayOf<SubTableType>& get_subtables (void) const
+ { return CastR<OffsetArrayOf<SubTableType> > (subTable); }
+ template <typename SubTableType>
+ inline OffsetArrayOf<SubTableType>& get_subtables (void)
+ { return CastR<OffsetArrayOf<SubTableType> > (subTable); }
+
inline unsigned int get_type (void) const { return lookupType; }
/* lookup_props is a 32-bit integer where the lower 16-bit is LookupFlag and
@@ -577,6 +604,20 @@ struct Lookup
return flag;
}
+ template <typename SubTableType, typename context_t>
+ inline typename context_t::return_t dispatch (context_t *c) const
+ {
+ unsigned int lookup_type = get_type ();
+ TRACE_DISPATCH (this, lookup_type);
+ unsigned int count = get_subtable_count ();
+ for (unsigned int i = 0; i < count; i++) {
+ typename context_t::return_t r = get_subtable<SubTableType> (i).dispatch (c, lookup_type);
+ if (c->stop_sublookup_iteration (r))
+ return TRACE_RETURN (r);
+ }
+ return TRACE_RETURN (c->default_return_value ());
+ }
+
inline bool serialize (hb_serialize_context_t *c,
unsigned int lookup_type,
uint32_t lookup_props,
@@ -595,18 +636,20 @@ struct Lookup
return TRACE_RETURN (true);
}
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
/* Real sanitize of the subtables is done by GSUB/GPOS/... */
if (!(c->check_struct (this) && subTable.sanitize (c))) return TRACE_RETURN (false);
if (lookupFlag & LookupFlag::UseMarkFilteringSet)
{
- USHORT &markFilteringSet = StructAfter<USHORT> (subTable);
+ const USHORT &markFilteringSet = StructAfter<USHORT> (subTable);
if (!markFilteringSet.sanitize (c)) return TRACE_RETURN (false);
}
return TRACE_RETURN (true);
}
+ private:
USHORT lookupType; /* Different enumerations for GSUB and GPOS */
USHORT lookupFlag; /* Lookup qualifiers */
ArrayOf<Offset<> >
@@ -651,7 +694,8 @@ struct CoverageFormat1
return TRACE_RETURN (true);
}
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
return TRACE_RETURN (glyphArray.sanitize (c));
}
@@ -737,7 +781,8 @@ struct CoverageFormat2
return TRACE_RETURN (true);
}
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
return TRACE_RETURN (rangeRecord.sanitize (c));
}
@@ -832,7 +877,8 @@ struct Coverage
}
}
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
if (!u.format.sanitize (c)) return TRACE_RETURN (false);
switch (u.format) {
@@ -938,12 +984,14 @@ struct ClassDefFormat1
private:
inline unsigned int get_class (hb_codepoint_t glyph_id) const
{
- if (unlikely ((unsigned int) (glyph_id - startGlyph) < classValue.len))
- return classValue[glyph_id - startGlyph];
+ unsigned int i = (unsigned int) (glyph_id - startGlyph);
+ if (unlikely (i < classValue.len))
+ return classValue[i];
return 0;
}
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
return TRACE_RETURN (c->check_struct (this) && classValue.sanitize (c));
}
@@ -994,12 +1042,13 @@ struct ClassDefFormat2
inline unsigned int get_class (hb_codepoint_t glyph_id) const
{
int i = rangeRecord.bsearch (glyph_id);
- if (i != -1)
+ if (unlikely (i != -1))
return rangeRecord[i].value;
return 0;
}
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
return TRACE_RETURN (rangeRecord.sanitize (c));
}
@@ -1056,7 +1105,8 @@ struct ClassDef
}
}
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
if (!u.format.sanitize (c)) return TRACE_RETURN (false);
switch (u.format) {
@@ -1148,7 +1198,8 @@ struct Device
return USHORT::static_size * (4 + ((endSize - startSize) >> (4 - f)));
}
- inline bool sanitize (hb_sanitize_context_t *c) {
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
TRACE_SANITIZE (this);
return TRACE_RETURN (c->check_struct (this) && c->check_range (this, this->get_size ()));
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-06 20:26:12 +0000