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CGE: Fixed code using memory overruns to do duplication

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This commit is contained in:
Paul Gilbert 2011-07-03 15:41:07 +10:00
parent 900e8cbf5b
commit d53142d95e
1 changed files with 5 additions and 0 deletions
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5
engines/cge/bitmap.cpp
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@ -117,6 +117,11 @@ Bitmap::Bitmap(uint16 w, uint16 h, uint8 fill)
HideDesc *b = (HideDesc *)(v + 4 * psiz);
b->skip = (SCR_WID - _w) >> 2;
b->hide = _w >> 2;
// Replicate across the entire table
for (HideDesc *hdP = b + 1; hdP < (b + _h); ++hdP)
*hdP = *b;
memcpy(b + 1, b, (_h - 1) * sizeof(*b)); // tricky fill entire table
b->skip = 0; // fix the first entry
_v = v;