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-rw-r--r--src/3rdparty/harfbuzz-ng/src/hb-ot-layout-gsubgpos-private.hh91
1 files changed, 56 insertions, 35 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-layout-gsubgpos-private.hh b/src/3rdparty/harfbuzz-ng/src/hb-ot-layout-gsubgpos-private.hh
index 546ff4b0fd..57fc1e05f7 100644
--- a/src/3rdparty/harfbuzz-ng/src/hb-ot-layout-gsubgpos-private.hh
+++ b/src/3rdparty/harfbuzz-ng/src/hb-ot-layout-gsubgpos-private.hh
@@ -38,10 +38,10 @@ namespace OT {
-#define TRACE_DISPATCH(this) \
+#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);
#ifndef HB_DEBUG_CLOSURE
#define HB_DEBUG_CLOSURE (HB_DEBUG+0)
@@ -168,6 +168,10 @@ struct hb_collect_glyphs_context_t
if (output == hb_set_get_empty ())
return HB_VOID;
+ /* Return if new lookup was recursed to before. */
+ if (recursed_lookups.has (lookup_index))
+ return HB_VOID;
+
hb_set_t *old_before = before;
hb_set_t *old_input = input;
hb_set_t *old_after = after;
@@ -181,6 +185,8 @@ struct hb_collect_glyphs_context_t
input = old_input;
after = old_after;
+ recursed_lookups.add (lookup_index);
+
return HB_VOID;
}
@@ -190,6 +196,7 @@ struct hb_collect_glyphs_context_t
hb_set_t *after;
hb_set_t *output;
recurse_func_t recurse_func;
+ hb_set_t recursed_lookups;
unsigned int nesting_level_left;
unsigned int debug_depth;
@@ -205,18 +212,30 @@ struct hb_collect_glyphs_context_t
after (glyphs_after ? glyphs_after : hb_set_get_empty ()),
output (glyphs_output ? glyphs_output : hb_set_get_empty ()),
recurse_func (NULL),
+ recursed_lookups (),
nesting_level_left (nesting_level_left_),
- debug_depth (0) {}
+ debug_depth (0)
+ {
+ recursed_lookups.init ();
+ }
+ ~hb_collect_glyphs_context_t (void)
+ {
+ recursed_lookups.fini ();
+ }
void set_recurse_func (recurse_func_t func) { recurse_func = func; }
};
+#ifndef HB_DEBUG_GET_COVERAGE
+#define HB_DEBUG_GET_COVERAGE (HB_DEBUG+0)
+#endif
+
struct hb_get_coverage_context_t
{
inline const char *get_name (void) { return "GET_COVERAGE"; }
- static const unsigned int max_debug_depth = 0;
+ static const unsigned int max_debug_depth = HB_DEBUG_GET_COVERAGE;
typedef const Coverage &return_t;
template <typename T>
inline return_t dispatch (const T &obj) { return obj.get_coverage (); }
@@ -1117,9 +1136,9 @@ struct Rule
inline void closure (hb_closure_context_t *c, ContextClosureLookupContext &lookup_context) const
{
TRACE_CLOSURE (this);
- const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (input, input[0].static_size * (inputCount ? inputCount - 1 : 0));
+ const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (inputZ, inputZ[0].static_size * (inputCount ? inputCount - 1 : 0));
context_closure_lookup (c,
- inputCount, input,
+ inputCount, inputZ,
lookupCount, lookupRecord,
lookup_context);
}
@@ -1127,9 +1146,9 @@ struct Rule
inline void collect_glyphs (hb_collect_glyphs_context_t *c, ContextCollectGlyphsLookupContext &lookup_context) const
{
TRACE_COLLECT_GLYPHS (this);
- const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (input, input[0].static_size * (inputCount ? inputCount - 1 : 0));
+ const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (inputZ, inputZ[0].static_size * (inputCount ? inputCount - 1 : 0));
context_collect_glyphs_lookup (c,
- inputCount, input,
+ inputCount, inputZ,
lookupCount, lookupRecord,
lookup_context);
}
@@ -1137,15 +1156,15 @@ struct Rule
inline bool would_apply (hb_would_apply_context_t *c, ContextApplyLookupContext &lookup_context) const
{
TRACE_WOULD_APPLY (this);
- const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (input, input[0].static_size * (inputCount ? inputCount - 1 : 0));
- return TRACE_RETURN (context_would_apply_lookup (c, inputCount, input, lookupCount, lookupRecord, lookup_context));
+ const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (inputZ, inputZ[0].static_size * (inputCount ? inputCount - 1 : 0));
+ return TRACE_RETURN (context_would_apply_lookup (c, inputCount, inputZ, lookupCount, lookupRecord, lookup_context));
}
inline bool apply (hb_apply_context_t *c, ContextApplyLookupContext &lookup_context) const
{
TRACE_APPLY (this);
- const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (input, input[0].static_size * (inputCount ? inputCount - 1 : 0));
- return TRACE_RETURN (context_apply_lookup (c, inputCount, input, lookupCount, lookupRecord, lookup_context));
+ const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (inputZ, inputZ[0].static_size * (inputCount ? inputCount - 1 : 0));
+ return TRACE_RETURN (context_apply_lookup (c, inputCount, inputZ, lookupCount, lookupRecord, lookup_context));
}
public:
@@ -1153,8 +1172,8 @@ struct Rule
TRACE_SANITIZE (this);
return inputCount.sanitize (c)
&& lookupCount.sanitize (c)
- && c->check_range (input,
- input[0].static_size * inputCount
+ && c->check_range (inputZ,
+ inputZ[0].static_size * inputCount
+ lookupRecordX[0].static_size * lookupCount);
}
@@ -1163,12 +1182,12 @@ struct Rule
* glyph sequence--includes the first
* glyph */
USHORT lookupCount; /* Number of LookupRecords */
- USHORT input[VAR]; /* Array of match inputs--start with
+ USHORT inputZ[VAR]; /* Array of match inputs--start with
* second glyph */
LookupRecord lookupRecordX[VAR]; /* Array of LookupRecords--in
* design order */
public:
- DEFINE_SIZE_ARRAY2 (4, input, lookupRecordX);
+ DEFINE_SIZE_ARRAY2 (4, inputZ, lookupRecordX);
};
struct RuleSet
@@ -1413,16 +1432,16 @@ struct ContextFormat3
inline void closure (hb_closure_context_t *c) const
{
TRACE_CLOSURE (this);
- if (!(this+coverage[0]).intersects (c->glyphs))
+ if (!(this+coverageZ[0]).intersects (c->glyphs))
return;
- const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (coverage, coverage[0].static_size * glyphCount);
+ const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (coverageZ, coverageZ[0].static_size * glyphCount);
struct ContextClosureLookupContext lookup_context = {
{intersects_coverage},
this
};
context_closure_lookup (c,
- glyphCount, (const USHORT *) (coverage + 1),
+ glyphCount, (const USHORT *) (coverageZ + 1),
lookupCount, lookupRecord,
lookup_context);
}
@@ -1430,16 +1449,16 @@ struct ContextFormat3
inline void collect_glyphs (hb_collect_glyphs_context_t *c) const
{
TRACE_COLLECT_GLYPHS (this);
- (this+coverage[0]).add_coverage (c->input);
+ (this+coverageZ[0]).add_coverage (c->input);
- const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (coverage, coverage[0].static_size * glyphCount);
+ const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (coverageZ, coverageZ[0].static_size * glyphCount);
struct ContextCollectGlyphsLookupContext lookup_context = {
{collect_coverage},
this
};
context_collect_glyphs_lookup (c,
- glyphCount, (const USHORT *) (coverage + 1),
+ glyphCount, (const USHORT *) (coverageZ + 1),
lookupCount, lookupRecord,
lookup_context);
}
@@ -1448,41 +1467,42 @@ struct ContextFormat3
{
TRACE_WOULD_APPLY (this);
- const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (coverage, coverage[0].static_size * glyphCount);
+ const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (coverageZ, coverageZ[0].static_size * glyphCount);
struct ContextApplyLookupContext lookup_context = {
{match_coverage},
this
};
- return TRACE_RETURN (context_would_apply_lookup (c, glyphCount, (const USHORT *) (coverage + 1), lookupCount, lookupRecord, lookup_context));
+ return TRACE_RETURN (context_would_apply_lookup (c, glyphCount, (const USHORT *) (coverageZ + 1), lookupCount, lookupRecord, lookup_context));
}
inline const Coverage &get_coverage (void) const
{
- return this+coverage[0];
+ return this+coverageZ[0];
}
inline bool apply (hb_apply_context_t *c) const
{
TRACE_APPLY (this);
- unsigned int index = (this+coverage[0]).get_coverage (c->buffer->cur().codepoint);
+ unsigned int index = (this+coverageZ[0]).get_coverage (c->buffer->cur().codepoint);
if (likely (index == NOT_COVERED)) return TRACE_RETURN (false);
- const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (coverage, coverage[0].static_size * glyphCount);
+ const LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (coverageZ, coverageZ[0].static_size * glyphCount);
struct ContextApplyLookupContext lookup_context = {
{match_coverage},
this
};
- return TRACE_RETURN (context_apply_lookup (c, glyphCount, (const USHORT *) (coverage + 1), lookupCount, lookupRecord, lookup_context));
+ return TRACE_RETURN (context_apply_lookup (c, glyphCount, (const USHORT *) (coverageZ + 1), lookupCount, lookupRecord, lookup_context));
}
inline bool sanitize (hb_sanitize_context_t *c) {
TRACE_SANITIZE (this);
if (!c->check_struct (this)) return TRACE_RETURN (false);
unsigned int count = glyphCount;
- if (!c->check_array (coverage, coverage[0].static_size, count)) return TRACE_RETURN (false);
+ if (!count) return TRACE_RETURN (false); /* We want to access coverageZ[0] freely. */
+ if (!c->check_array (coverageZ, coverageZ[0].static_size, count)) return TRACE_RETURN (false);
for (unsigned int i = 0; i < count; i++)
- if (!coverage[i].sanitize (c, this)) return TRACE_RETURN (false);
- LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (coverage, coverage[0].static_size * count);
+ if (!coverageZ[i].sanitize (c, this)) return TRACE_RETURN (false);
+ LookupRecord *lookupRecord = &StructAtOffset<LookupRecord> (coverageZ, coverageZ[0].static_size * count);
return TRACE_RETURN (c->check_array (lookupRecord, lookupRecord[0].static_size, lookupCount));
}
@@ -1492,12 +1512,12 @@ struct ContextFormat3
* sequence */
USHORT lookupCount; /* Number of LookupRecords */
OffsetTo<Coverage>
- coverage[VAR]; /* Array of offsets to Coverage
+ coverageZ[VAR]; /* Array of offsets to Coverage
* table in glyph sequence order */
LookupRecord lookupRecordX[VAR]; /* Array of LookupRecords--in
* design order */
public:
- DEFINE_SIZE_ARRAY2 (6, coverage, lookupRecordX);
+ DEFINE_SIZE_ARRAY2 (6, coverageZ, lookupRecordX);
};
struct Context
@@ -1505,7 +1525,7 @@ struct Context
template <typename context_t>
inline typename context_t::return_t dispatch (context_t *c) const
{
- TRACE_DISPATCH (this);
+ TRACE_DISPATCH (this, u.format);
switch (u.format) {
case 1: return TRACE_RETURN (c->dispatch (u.format1));
case 2: return TRACE_RETURN (c->dispatch (u.format2));
@@ -2090,6 +2110,7 @@ struct ChainContextFormat3
if (!backtrack.sanitize (c, this)) return TRACE_RETURN (false);
OffsetArrayOf<Coverage> &input = StructAfter<OffsetArrayOf<Coverage> > (backtrack);
if (!input.sanitize (c, this)) return TRACE_RETURN (false);
+ if (!input.len) return TRACE_RETURN (false); /* To be consistent with Context. */
OffsetArrayOf<Coverage> &lookahead = StructAfter<OffsetArrayOf<Coverage> > (input);
if (!lookahead.sanitize (c, this)) return TRACE_RETURN (false);
ArrayOf<LookupRecord> &lookup = StructAfter<ArrayOf<LookupRecord> > (lookahead);
@@ -2122,7 +2143,7 @@ struct ChainContext
template <typename context_t>
inline typename context_t::return_t dispatch (context_t *c) const
{
- TRACE_DISPATCH (this);
+ TRACE_DISPATCH (this, u.format);
switch (u.format) {
case 1: return TRACE_RETURN (c->dispatch (u.format1));
case 2: return TRACE_RETURN (c->dispatch (u.format2));
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-21 05:25:45 +0000