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[cff] Optimize INDEX operator[]

This commit is contained in:
Behdad Esfahbod 2022-11-21 14:36:57 -07:00
parent d9de515a38
commit b238578a9c
1 changed files with 8 additions and 4 deletions
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12
src/hb-ot-cff-common.hh
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@ -207,10 +207,14 @@ struct CFFIndex
unsigned int size = offSize;
const HBUINT8 *p = offsets + size * index;
unsigned int offset = 0;
for (; size; size--)
offset = (offset << 8) + *p++;
return offset;
switch (size)
{
case 1: return * (HBUINT8 *) p;
case 2: return * (HBUINT16 *) p;
case 3: return * (HBUINT24 *) p;
case 4: return * (HBUINT32 *) p;
default: return 0;
}
}
unsigned int length_at (unsigned int index) const