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[OTLayout] Fix various introspection issues with ClassDef's 

As reported by Jonathan Kew.
This commit is contained in:
Behdad Esfahbod 2013-01-02 23:36:37 -06:00
parent e81aff9ef7
commit 11fba79ee9
1 changed files with 15 additions and 4 deletions
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19
src/hb-ot-layout-gsubgpos-private.hh
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@ -1175,7 +1175,7 @@ struct ContextFormat2
struct ContextClosureLookupContext lookup_context = {
{intersects_class},
NULL
&class_def
};
unsigned int count = ruleSet.len;
@ -1191,9 +1191,10 @@ struct ContextFormat2
TRACE_COLLECT_GLYPHS (this);
(this+coverage).add_coverage (c->input);
const ClassDef &class_def = this+classDef;
struct ContextCollectGlyphsLookupContext lookup_context = {
{collect_class},
NULL
&class_def
};
unsigned int count = ruleSet.len;
@ -1750,9 +1751,15 @@ struct ChainContextFormat2
TRACE_COLLECT_GLYPHS (this);
(this+coverage).add_coverage (c->input);
const ClassDef &backtrack_class_def = this+backtrackClassDef;
const ClassDef &input_class_def = this+inputClassDef;
const ClassDef &lookahead_class_def = this+lookaheadClassDef;
struct ChainContextCollectGlyphsLookupContext lookup_context = {
{collect_class},
{NULL, NULL, NULL}
{&backtrack_class_def,
&input_class_def,
&lookahead_class_def}
};
unsigned int count = ruleSet.len;
@ -1764,13 +1771,17 @@ struct ChainContextFormat2
{
TRACE_WOULD_APPLY (this);
const ClassDef &backtrack_class_def = this+backtrackClassDef;
const ClassDef &input_class_def = this+inputClassDef;
const ClassDef &lookahead_class_def = this+lookaheadClassDef;
unsigned int index = input_class_def.get_class (c->glyphs[0]);
const ChainRuleSet &rule_set = this+ruleSet[index];
struct ChainContextApplyLookupContext lookup_context = {
{match_class},
{NULL, &input_class_def, NULL}
{&backtrack_class_def,
&input_class_def,
&lookahead_class_def}
};
return TRACE_RETURN (rule_set.would_apply (c, lookup_context));
}