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annotate ext/openal-soft/OpenAL32/alThunk.c @ 362:6da97ffede18

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Patch by amo-ej1 (Elie de Brauwer): * Fixes the map editor's save map as functionality * Close #382
author mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
date Sun, 18 Oct 2009 20:13:21 +0000
parents 4a0efb7baf70
children
rev   line source
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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1 /**
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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2 * OpenAL cross platform audio library
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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3 * Copyright (C) 1999-2007 by authors.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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4 * This library is free software; you can redistribute it and/or
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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5 * modify it under the terms of the GNU Library General Public
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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6 * License as published by the Free Software Foundation; either
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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7 * version 2 of the License, or (at your option) any later version.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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8 *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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9 * This library is distributed in the hope that it will be useful,
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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12 * Library General Public License for more details.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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13 *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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14 * You should have received a copy of the GNU Library General Public
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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15 * License along with this library; if not, write to the
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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17 * Boston, MA 02111-1307, USA.
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18 * Or go to http://www.gnu.org/copyleft/lgpl.html
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19 */
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20
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21 #include "config.h"
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22
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23 #include <stdlib.h>
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24
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25 #include "alMain.h"
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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26 #include "alThunk.h"
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27
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28 typedef struct {
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29 ALvoid *ptr;
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30 ALboolean InUse;
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31 } ThunkEntry;
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32
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33 static ThunkEntry *g_ThunkArray;
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34 static ALuint g_ThunkArraySize;
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35
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36 static CRITICAL_SECTION g_ThunkLock;
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37
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38 void alThunkInit(void)
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39 {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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40 InitializeCriticalSection(&g_ThunkLock);
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41 g_ThunkArraySize = 1;
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42 g_ThunkArray = calloc(1, g_ThunkArraySize * sizeof(ThunkEntry));
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43 }
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44
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45 void alThunkExit(void)
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46 {
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47 free(g_ThunkArray);
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48 g_ThunkArray = NULL;
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49 g_ThunkArraySize = 0;
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50 DeleteCriticalSection(&g_ThunkLock);
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51 }
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52
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53 ALuint alThunkAddEntry(ALvoid *ptr)
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54 {
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55 ALuint index;
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56
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57 EnterCriticalSection(&g_ThunkLock);
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58
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59 for(index = 0;index < g_ThunkArraySize;index++)
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60 {
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61 if(g_ThunkArray[index].InUse == AL_FALSE)
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62 break;
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63 }
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64
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65 if(index == g_ThunkArraySize)
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66 {
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67 ThunkEntry *NewList;
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68
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69 NewList = realloc(g_ThunkArray, g_ThunkArraySize*2 * sizeof(ThunkEntry));
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70 if(!NewList)
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71 {
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72 LeaveCriticalSection(&g_ThunkLock);
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73 return 0;
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74 }
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75 memset(&NewList[g_ThunkArraySize], 0, g_ThunkArraySize*sizeof(ThunkEntry));
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76 g_ThunkArraySize *= 2;
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77 g_ThunkArray = NewList;
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78 }
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79
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80 g_ThunkArray[index].ptr = ptr;
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81 g_ThunkArray[index].InUse = AL_TRUE;
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82
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83 LeaveCriticalSection(&g_ThunkLock);
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84
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85 return index+1;
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86 }
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87
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88 void alThunkRemoveEntry(ALuint index)
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89 {
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90 EnterCriticalSection(&g_ThunkLock);
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91
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92 if(index > 0 && index <= g_ThunkArraySize)
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93 g_ThunkArray[index-1].InUse = AL_FALSE;
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94
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95 LeaveCriticalSection(&g_ThunkLock);
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96 }
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97
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98 ALvoid *alThunkLookupEntry(ALuint index)
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99 {
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100 ALvoid *ptr = NULL;
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101
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102 EnterCriticalSection(&g_ThunkLock);
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103
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104 if(index > 0 && index <= g_ThunkArraySize)
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105 ptr = g_ThunkArray[index-1].ptr;
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106
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107 LeaveCriticalSection(&g_ThunkLock);
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108
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109 return ptr;
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110 }