1 | /************************************************************************* |
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2 | * * |
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3 | * Open Dynamics Engine, Copyright (C) 2001,2002 Russell L. Smith. * |
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4 | * All rights reserved. Email: russ@q12.org Web: www.q12.org * |
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5 | * * |
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6 | * This library is free software; you can redistribute it and/or * |
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7 | * modify it under the terms of EITHER: * |
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8 | * (1) The GNU Lesser General Public License as published by the Free * |
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9 | * Software Foundation; either version 2.1 of the License, or (at * |
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10 | * your option) any later version. The text of the GNU Lesser * |
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11 | * General Public License is included with this library in the * |
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12 | * file LICENSE.TXT. * |
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13 | * (2) The BSD-style license that is included with this library in * |
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14 | * the file LICENSE-BSD.TXT. * |
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15 | * * |
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16 | * This library is distributed in the hope that it will be useful, * |
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17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files * |
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19 | * LICENSE.TXT and LICENSE-BSD.TXT for more details. * |
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20 | * * |
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21 | *************************************************************************/ |
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22 | |
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23 | #include <ode/config.h> |
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24 | #include <ode/memory.h> |
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25 | #include <ode/error.h> |
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26 | #include "array.h" |
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27 | |
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28 | |
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29 | static inline int roundUpToPowerOfTwo (int x) |
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30 | { |
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31 | int i = 1; |
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32 | while (i < x) i <<= 1; |
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33 | return i; |
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34 | } |
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35 | |
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36 | |
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37 | void dArrayBase::_freeAll (int sizeofT) |
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38 | { |
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39 | if (_data) { |
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40 | if (_data == this+1) return; // if constructLocalArray() was called |
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41 | dFree (_data,_anum * sizeofT); |
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42 | } |
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43 | } |
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44 | |
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45 | |
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46 | void dArrayBase::_setSize (int newsize, int sizeofT) |
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47 | { |
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48 | if (newsize < 0) return; |
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49 | if (newsize > _anum) { |
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50 | if (_data == this+1) { |
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51 | // this is a no-no, because constructLocalArray() was called |
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52 | dDebug (0,"setSize() out of space in LOCAL array"); |
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53 | } |
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54 | int newanum = roundUpToPowerOfTwo (newsize); |
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55 | if (_data) _data = dRealloc (_data, _anum*sizeofT, newanum*sizeofT); |
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56 | else _data = dAlloc (newanum*sizeofT); |
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57 | _anum = newanum; |
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58 | } |
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59 | _size = newsize; |
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60 | } |
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61 | |
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62 | |
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63 | void * dArrayBase::operator new (size_t size) |
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64 | { |
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65 | return dAlloc (size); |
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66 | } |
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67 | |
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68 | |
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69 | void dArrayBase::operator delete (void *ptr, size_t size) |
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70 | { |
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71 | dFree (ptr,size); |
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72 | } |
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73 | |
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74 | |
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75 | void dArrayBase::constructLocalArray (int __anum) |
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76 | { |
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77 | _size = 0; |
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78 | _anum = __anum; |
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79 | _data = this+1; |
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80 | } |
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