misc/libphysfs/lzma/CPP/Common/MyVector.cpp
author alfadur
Fri, 13 Apr 2018 00:17:30 +0200
changeset 13321 23ade5604f8d
parent 12213 bb5522e88ab2
permissions -rw-r--r--
Fix bullet trails overlapping when the pass through wrap or bounce world edge
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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// Common/MyVector.cpp
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#include "StdAfx.h"
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#include <string.h>
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#include "MyVector.h"
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CBaseRecordVector::~CBaseRecordVector() { Free(); }
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void CBaseRecordVector::Free()
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{ 
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  delete []((unsigned char *)_items); 
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  _capacity = 0;
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  _size = 0;
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  _items = 0;
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}
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void CBaseRecordVector::Clear() { DeleteFrom(0); }
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void CBaseRecordVector::DeleteBack() { Delete(_size - 1); }
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void CBaseRecordVector::DeleteFrom(int index) { Delete(index, _size - index); }
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void CBaseRecordVector::ReserveOnePosition()
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{
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  if (_size != _capacity)
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    return;
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  int delta;
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  if (_capacity > 64)
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    delta = _capacity / 2;
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  else if (_capacity > 8)
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    delta = 8;
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  else
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    delta = 4;
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  Reserve(_capacity + delta);
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}
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void CBaseRecordVector::Reserve(int newCapacity)
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{
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  if (newCapacity <= _capacity)
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    return;
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  if ((unsigned)newCapacity >= ((unsigned)1 << (sizeof(unsigned) * 8 - 1)))
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    throw 1052353;
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  size_t newSize = (size_t)(unsigned)newCapacity * _itemSize;
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  if (newSize / _itemSize != (size_t)(unsigned)newCapacity)
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    throw 1052354;
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  unsigned char *p = new unsigned char[newSize];
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  if (p == 0)
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    throw 1052355;
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  int numRecordsToMove = _capacity;
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  memmove(p, _items, _itemSize * numRecordsToMove);
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  delete [](unsigned char *)_items;
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  _items = p;
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  _capacity = newCapacity;
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}
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void CBaseRecordVector::MoveItems(int destIndex, int srcIndex)
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{
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  memmove(((unsigned char *)_items) + destIndex * _itemSize, 
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    ((unsigned char  *)_items) + srcIndex * _itemSize, 
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    _itemSize * (_size - srcIndex));
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}
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void CBaseRecordVector::InsertOneItem(int index)
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{
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  ReserveOnePosition();
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  MoveItems(index + 1, index);
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  _size++;
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}
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void CBaseRecordVector::Delete(int index, int num)
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{
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  TestIndexAndCorrectNum(index, num);
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  if (num > 0)
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  {
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    MoveItems(index, index + num);
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    _size -= num;
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    77
  }
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents:
diff changeset
    78
}