annotate src/cdrom/macosx/AudioFileReaderThread.c @ 1143:71a2648acc75

Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam requested this effort on the mailing list, apparently because of binary compatibility issues between 10.4 and earlier systems (or gcc4 and earlier compilers?). Works fine with SDL12/test/testcdrom.c, with this command line: ./testcdrom -status -list -play -sleep 5000 -pause -sleep 3000 -resume \ -sleep 5000 -stop -sleep 3000 -play -sleep 3000 -stop \ -sleep 3000 -eject Unix Makefiles work, XCode project still need updating for new filenames.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 22 Sep 2005 08:48:16 +0000
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children 3692456e7b0f
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21
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22 This file based on Apple sample code. We haven't changed the file name,
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23 so if you want to see the original search for it on apple.com/developer
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24 */
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25
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26 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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27 // AudioFileManager.cpp
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28 //
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29 #include "AudioFilePlayer.h"
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30 #include <mach/mach.h> //used for setting policy of thread
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31 #include "SDLOSXCAGuard.h"
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32 #include <pthread.h>
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33
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34 //#include <list>
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35
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36 //typedef void *FileData;
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37 typedef struct S_FileData
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38 {
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39 AudioFileManager *obj;
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40 struct S_FileData *next;
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41 } FileData;
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42
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43
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44 typedef struct S_FileReaderThread {
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45 //public:
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46 SDLOSXCAGuard* (*GetGuard)(struct S_FileReaderThread *frt);
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47 void (*AddReader)(struct S_FileReaderThread *frt);
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48 void (*RemoveReader)(struct S_FileReaderThread *frt, AudioFileManager* inItem);
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49 int (*TryNextRead)(struct S_FileReaderThread *frt, AudioFileManager* inItem);
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50
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51 int mThreadShouldDie;
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52
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53 //private:
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54 //typedef std::list<AudioFileManager*> FileData;
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55
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56 SDLOSXCAGuard *mGuard;
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57 UInt32 mThreadPriority;
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58
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59 int mNumReaders;
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60 FileData *mFileData;
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61
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62
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63 void (*ReadNextChunk)(struct S_FileReaderThread *frt);
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64 int (*StartFixedPriorityThread)(struct S_FileReaderThread *frt);
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65 //static
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66 UInt32 (*GetThreadBasePriority)(pthread_t inThread);
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67 //static
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68 void* (*DiskReaderEntry)(void *inRefCon);
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69 } FileReaderThread;
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70
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71
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72 static SDLOSXCAGuard* FileReaderThread_GetGuard(FileReaderThread *frt)
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73 {
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74 return frt->mGuard;
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75 }
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76
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77 // returns 1 if succeeded
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78 static int FileReaderThread_TryNextRead (FileReaderThread *frt, AudioFileManager* inItem)
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79 {
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80 int didLock = 0;
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81 int succeeded = 0;
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82 if (frt->mGuard->Try(frt->mGuard, &didLock))
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83 {
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84 //frt->mFileData.push_back (inItem);
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85 // !!! FIXME: this could be faster with a "tail" member. --ryan.
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86 FileData *i = frt->mFileData;
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87 FileData *prev = NULL;
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88
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89 FileData *newfd = (FileData *) malloc(sizeof (FileData));
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90 newfd->obj = inItem;
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91 newfd->next = NULL;
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92
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93 while (i != NULL) { prev = i; i = i->next; }
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94 if (prev == NULL)
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95 frt->mFileData = newfd;
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96 else
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97 prev->next = newfd;
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98
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99 frt->mGuard->Notify(frt->mGuard);
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100 succeeded = 1;
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101
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102 if (didLock)
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103 frt->mGuard->Unlock(frt->mGuard);
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104 }
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105
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106 return succeeded;
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107 }
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108
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109 static void FileReaderThread_AddReader(FileReaderThread *frt)
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110 {
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111 if (frt->mNumReaders == 0)
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112 {
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113 frt->mThreadShouldDie = 0;
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114 frt->StartFixedPriorityThread (frt);
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115 }
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116 frt->mNumReaders++;
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117 }
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118
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119 static void FileReaderThread_RemoveReader (FileReaderThread *frt, AudioFileManager* inItem)
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120 {
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121 if (frt->mNumReaders > 0)
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122 {
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123 int bNeedsRelease = frt->mGuard->Lock(frt->mGuard);
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124
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125 //frt->mFileData.remove (inItem);
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126 FileData *i = frt->mFileData;
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127 FileData *prev = NULL;
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128 while (i != NULL)
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129 {
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130 FileData *next = i->next;
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131 if (i->obj != inItem)
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132 prev = i;
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133 else
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134 {
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135 if (prev == NULL)
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136 frt->mFileData = next;
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137 else
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138 prev->next = next;
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139 free(i);
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140 }
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141 i = next;
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142 }
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143
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144 if (--frt->mNumReaders == 0) {
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145 frt->mThreadShouldDie = 1;
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146 frt->mGuard->Notify(frt->mGuard); // wake up thread so it will quit
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147 frt->mGuard->Wait(frt->mGuard); // wait for thread to die
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148 }
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149
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150 if (bNeedsRelease) frt->mGuard->Unlock(frt->mGuard);
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151 }
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152 }
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153
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154 static int FileReaderThread_StartFixedPriorityThread (FileReaderThread *frt)
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155 {
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156 pthread_attr_t theThreadAttrs;
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157 pthread_t pThread;
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158
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159 OSStatus result = pthread_attr_init(&theThreadAttrs);
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160 if (result) return 0; //THROW_RESULT("pthread_attr_init - Thread attributes could not be created.")
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161
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162 result = pthread_attr_setdetachstate(&theThreadAttrs, PTHREAD_CREATE_DETACHED);
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163 if (result) return 0; //THROW_RESULT("pthread_attr_setdetachstate - Thread attributes could not be detached.")
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164
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165 result = pthread_create (&pThread, &theThreadAttrs, frt->DiskReaderEntry, frt);
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166 if (result) return 0; //THROW_RESULT("pthread_create - Create and start the thread.")
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167
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168 pthread_attr_destroy(&theThreadAttrs);
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169
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170 // we've now created the thread and started it
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171 // we'll now set the priority of the thread to the nominated priority
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172 // and we'll also make the thread fixed
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173 thread_extended_policy_data_t theFixedPolicy;
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174 thread_precedence_policy_data_t thePrecedencePolicy;
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175 SInt32 relativePriority;
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176
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177 // make thread fixed
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178 theFixedPolicy.timeshare = 0; // set to 1 for a non-fixed thread
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179 result = thread_policy_set (pthread_mach_thread_np(pThread), THREAD_EXTENDED_POLICY, (thread_policy_t)&theFixedPolicy, THREAD_EXTENDED_POLICY_COUNT);
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180 if (result) return 0; //THROW_RESULT("thread_policy - Couldn't set thread as fixed priority.")
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181 // set priority
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182 // precedency policy's "importance" value is relative to spawning thread's priority
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183 relativePriority = frt->mThreadPriority - frt->GetThreadBasePriority(pthread_self());
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184
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185 thePrecedencePolicy.importance = relativePriority;
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186 result = thread_policy_set (pthread_mach_thread_np(pThread), THREAD_PRECEDENCE_POLICY, (thread_policy_t)&thePrecedencePolicy, THREAD_PRECEDENCE_POLICY_COUNT);
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187 if (result) return 0; //THROW_RESULT("thread_policy - Couldn't set thread priority.")
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188
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189 return 1;
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190 }
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191
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192 static UInt32 FileReaderThread_GetThreadBasePriority (pthread_t inThread)
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193 {
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194 thread_basic_info_data_t threadInfo;
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195 policy_info_data_t thePolicyInfo;
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196 unsigned int count;
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197
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198 // get basic info
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199 count = THREAD_BASIC_INFO_COUNT;
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200 thread_info (pthread_mach_thread_np (inThread), THREAD_BASIC_INFO, (integer_t*)&threadInfo, &count);
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201
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202 switch (threadInfo.policy) {
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203 case POLICY_TIMESHARE:
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204 count = POLICY_TIMESHARE_INFO_COUNT;
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205 thread_info(pthread_mach_thread_np (inThread), THREAD_SCHED_TIMESHARE_INFO, (integer_t*)&(thePolicyInfo.ts), &count);
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206 return thePolicyInfo.ts.base_priority;
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207 break;
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208
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209 case POLICY_FIFO:
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210 count = POLICY_FIFO_INFO_COUNT;
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211 thread_info(pthread_mach_thread_np (inThread), THREAD_SCHED_FIFO_INFO, (integer_t*)&(thePolicyInfo.fifo), &count);
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212 if (thePolicyInfo.fifo.depressed) {
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213 return thePolicyInfo.fifo.depress_priority;
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214 } else {
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215 return thePolicyInfo.fifo.base_priority;
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216 }
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217 break;
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218
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219 case POLICY_RR:
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220 count = POLICY_RR_INFO_COUNT;
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221 thread_info(pthread_mach_thread_np (inThread), THREAD_SCHED_RR_INFO, (integer_t*)&(thePolicyInfo.rr), &count);
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222 if (thePolicyInfo.rr.depressed) {
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223 return thePolicyInfo.rr.depress_priority;
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224 } else {
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225 return thePolicyInfo.rr.base_priority;
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226 }
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227 break;
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228 }
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229
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230 return 0;
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231 }
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232
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233 static void *FileReaderThread_DiskReaderEntry (void *inRefCon)
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234 {
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235 FileReaderThread *frt = (FileReaderThread *)inRefCon;
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236 frt->ReadNextChunk(frt);
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237 #if DEBUG
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238 printf ("finished with reading file\n");
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239 #endif
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240
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241 return 0;
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242 }
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243
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244 static void FileReaderThread_ReadNextChunk (FileReaderThread *frt)
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245 {
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246 OSStatus result;
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247 UInt32 dataChunkSize;
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248 AudioFileManager* theItem = 0;
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249
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250 for (;;)
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251 {
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252 { // this is a scoped based lock
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253 int bNeedsRelease = frt->mGuard->Lock(frt->mGuard);
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254
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255 if (frt->mThreadShouldDie) {
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256 frt->mGuard->Notify(frt->mGuard);
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257 if (bNeedsRelease) frt->mGuard->Unlock(frt->mGuard);
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258 return;
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259 }
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260
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261 //if (frt->mFileData.empty())
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262 if (frt->mFileData == NULL)
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263 {
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Ryan C. Gordon <icculus@icculus.org>
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264 frt->mGuard->Wait(frt->mGuard);
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265 }
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266
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267 // kill thread
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268 if (frt->mThreadShouldDie) {
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269
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270 frt->mGuard->Notify(frt->mGuard);
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271 if (bNeedsRelease) frt->mGuard->Unlock(frt->mGuard);
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272 return;
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273 }
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274
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275 //theItem = frt->mFileData.front();
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276 //frt->mFileData.pop_front();
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277 theItem = NULL;
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278 if (frt->mFileData != NULL)
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279 {
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280 FileData *next = frt->mFileData->next;
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281 theItem = frt->mFileData->obj;
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282 free(frt->mFileData);
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283 frt->mFileData = next;
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284 }
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285
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286 if (bNeedsRelease) frt->mGuard->Unlock(frt->mGuard);
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287 }
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288
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289 if ((theItem->mFileLength - theItem->mReadFilePosition) < theItem->mChunkSize)
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290 dataChunkSize = theItem->mFileLength - theItem->mReadFilePosition;
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291 else
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292 dataChunkSize = theItem->mChunkSize;
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293
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294 // this is the exit condition for the thread
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295 if (dataChunkSize <= 0) {
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296 theItem->mFinishedReadingData = 1;
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297 continue;
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298 }
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299 // construct pointer
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300 char* writePtr = (char *) (theItem->GetFileBuffer(theItem) +
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301 (theItem->mWriteToFirstBuffer ? 0 : theItem->mChunkSize));
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302
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303 // read data
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304 result = theItem->Read(theItem, writePtr, &dataChunkSize);
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305 if (result != noErr && result != eofErr) {
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306 AudioFilePlayer *afp = (AudioFilePlayer *) theItem->GetParent(theItem);
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307 afp->DoNotification(afp, result);
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308 continue;
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309 }
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310
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311 if (dataChunkSize != theItem->mChunkSize)
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312 {
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313 writePtr += dataChunkSize;
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diff changeset
314
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315 // can't exit yet.. we still have to pass the partial buffer back
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316 memset (writePtr, 0, (theItem->mChunkSize - dataChunkSize));
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317 }
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318
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319 theItem->mWriteToFirstBuffer = !theItem->mWriteToFirstBuffer; // switch buffers
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320
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321 if (result == eofErr)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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322 theItem->mReadFilePosition = theItem->mFileLength;
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diff changeset
323 else
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
324 theItem->mReadFilePosition += dataChunkSize; // increment count
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diff changeset
325 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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parents:
diff changeset
326 }
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diff changeset
327
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
328 void delete_FileReaderThread(FileReaderThread *frt)
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diff changeset
329 {
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
330 if (frt != NULL)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
331 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
332 delete_SDLOSXCAGuard(frt->mGuard);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
333 free(frt);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
334 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
335 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
336
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
337 FileReaderThread *new_FileReaderThread ()
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parents:
diff changeset
338 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
339 FileReaderThread *frt = (FileReaderThread *) malloc(sizeof (FileReaderThread));
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diff changeset
340 if (frt == NULL)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
341 return NULL;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
342 memset(frt, '\0', sizeof (*frt));
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
343
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
344 frt->mGuard = new_SDLOSXCAGuard();
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
345 if (frt->mGuard == NULL)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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parents:
diff changeset
346 {
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parents:
diff changeset
347 free(frt);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
348 return NULL;
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parents:
diff changeset
349 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
350
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
351 #define SET_FILEREADERTHREAD_METHOD(m) frt->m = FileReaderThread_##m
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
352 SET_FILEREADERTHREAD_METHOD(GetGuard);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
353 SET_FILEREADERTHREAD_METHOD(AddReader);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
354 SET_FILEREADERTHREAD_METHOD(RemoveReader);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
355 SET_FILEREADERTHREAD_METHOD(TryNextRead);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
356 SET_FILEREADERTHREAD_METHOD(ReadNextChunk);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
357 SET_FILEREADERTHREAD_METHOD(StartFixedPriorityThread);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
358 SET_FILEREADERTHREAD_METHOD(GetThreadBasePriority);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
359 SET_FILEREADERTHREAD_METHOD(DiskReaderEntry);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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parents:
diff changeset
360 #undef SET_FILEREADERTHREAD_METHOD
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parents:
diff changeset
361
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
362 frt->mThreadPriority = 62;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
363 return frt;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
364 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
365
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
366
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
367 static FileReaderThread *sReaderThread;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
368
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
369
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
370 static int AudioFileManager_DoConnect (AudioFileManager *afm)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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parents:
diff changeset
371 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
372 if (!afm->mIsEngaged)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
373 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
374 //afm->mReadFilePosition = 0;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
375 afm->mFinishedReadingData = 0;
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parents:
diff changeset
376
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
377 afm->mNumTimesAskedSinceFinished = 0;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
378 afm->mLockUnsuccessful = 0;
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diff changeset
379
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
380 OSStatus result;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
381 UInt32 dataChunkSize;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
382
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
383 if ((afm->mFileLength - afm->mReadFilePosition) < afm->mChunkSize)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
384 dataChunkSize = afm->mFileLength - afm->mReadFilePosition;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
385 else
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
386 dataChunkSize = afm->mChunkSize;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
387
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
388 result = afm->Read(afm, afm->mFileBuffer, &dataChunkSize);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
389 if (result) return 0; //THROW_RESULT("AudioFileManager::DoConnect(): Read")
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
390
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
391 afm->mReadFilePosition += dataChunkSize;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
392
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
393 afm->mWriteToFirstBuffer = 0;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
394 afm->mReadFromFirstBuffer = 1;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
395
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
396 sReaderThread->AddReader(sReaderThread);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
397
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
398 afm->mIsEngaged = 1;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
399 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
400 //else
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
401 // throw static_cast<OSStatus>(-1); //thread has already been started
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
402
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
403 return 1;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
404 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
405
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
406 static void AudioFileManager_Disconnect (AudioFileManager *afm)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
407 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
408 if (afm->mIsEngaged)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
409 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
410 sReaderThread->RemoveReader (sReaderThread, afm);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
411 afm->mIsEngaged = 0;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
412 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
413 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
414
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
415 static OSStatus AudioFileManager_Read(AudioFileManager *afm, char *buffer, UInt32 *len)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
416 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
417 return FSReadFork (afm->mForkRefNum,
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
418 fsFromStart,
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
419 afm->mReadFilePosition + afm->mAudioDataOffset,
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
420 *len,
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
421 buffer,
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
422 len);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
423 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
424
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
425 static OSStatus AudioFileManager_GetFileData (AudioFileManager *afm, void** inOutData, UInt32 *inOutDataSize)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
426 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
427 if (afm->mFinishedReadingData)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
428 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
429 ++afm->mNumTimesAskedSinceFinished;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
430 *inOutDataSize = 0;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
431 *inOutData = 0;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
432 return noErr;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
433 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
434
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
435 if (afm->mReadFromFirstBuffer == afm->mWriteToFirstBuffer) {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
436 #if DEBUG
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
437 printf ("* * * * * * * Can't keep up with reading file\n");
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
438 #endif
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
439
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
440 afm->mParent->DoNotification (afm->mParent, kAudioFilePlayErr_FilePlayUnderrun);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
441 *inOutDataSize = 0;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
442 *inOutData = 0;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
443 } else {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
444 *inOutDataSize = afm->mChunkSize;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
445 *inOutData = afm->mReadFromFirstBuffer ? afm->mFileBuffer : (afm->mFileBuffer + afm->mChunkSize);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
446 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
447
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
448 afm->mLockUnsuccessful = !sReaderThread->TryNextRead (sReaderThread, afm);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
449
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
450 afm->mReadFromFirstBuffer = !afm->mReadFromFirstBuffer;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
451
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
452 return noErr;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
453 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
454
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
455 static void AudioFileManager_AfterRender (AudioFileManager *afm)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
456 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
457 if (afm->mNumTimesAskedSinceFinished > 0)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
458 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
459 int didLock = 0;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
460 SDLOSXCAGuard *guard = sReaderThread->GetGuard(sReaderThread);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
461 if (guard->Try(guard, &didLock)) {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
462 afm->mParent->DoNotification (afm->mParent, kAudioFilePlay_FileIsFinished);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
463 if (didLock)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
464 guard->Unlock(guard);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
465 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
466 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
467
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
468 if (afm->mLockUnsuccessful)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
469 afm->mLockUnsuccessful = !sReaderThread->TryNextRead (sReaderThread, afm);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
470 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
471
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
472 static void AudioFileManager_SetPosition (AudioFileManager *afm, SInt64 pos)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
473 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
474 if (pos < 0 || pos >= afm->mFileLength) {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
475 SDL_SetError ("AudioFileManager::SetPosition - position invalid: %d filelen=%d\n",
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
476 (unsigned int)pos, (unsigned int)afm->mFileLength);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
477 pos = 0;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
478 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
479
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
480 afm->mReadFilePosition = pos;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
481 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
482
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
483 static void AudioFileManager_SetEndOfFile (AudioFileManager *afm, SInt64 pos)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
484 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
485 if (pos <= 0 || pos > afm->mFileLength) {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
486 SDL_SetError ("AudioFileManager::SetEndOfFile - position beyond actual eof\n");
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
487 pos = afm->mFileLength;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
488 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
489
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
490 afm->mFileLength = pos;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
491 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
492
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
493 static const char *AudioFileManager_GetFileBuffer(AudioFileManager *afm)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
494 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
495 return afm->mFileBuffer;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
496 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
497
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
498 const AudioFilePlayer *AudioFileManager_GetParent(AudioFileManager *afm)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
499 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
500 return afm->mParent;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
501 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
502
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
503 static int AudioFileManager_GetByteCounter(AudioFileManager *afm)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
504 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
505 return afm->mByteCounter;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
506 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
507
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
508
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
509 static OSStatus AudioFileManager_FileInputProc (void *inRefCon,
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
510 AudioUnitRenderActionFlags inActionFlags,
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
511 const AudioTimeStamp *inTimeStamp,
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
512 UInt32 inBusNumber,
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
513 AudioBuffer *ioData)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
514 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
515 AudioFileManager* afm = (AudioFileManager*)inRefCon;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
516 return afm->Render(afm, ioData);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
517 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
518
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
519 static OSStatus AudioFileManager_Render (AudioFileManager *afm, AudioBuffer *ioData)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
520 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
521 OSStatus result = noErr;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
522
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
523 if (afm->mBufferOffset >= afm->mBufferSize) {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
524 result = afm->GetFileData(afm, &afm->mTmpBuffer, &afm->mBufferSize);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
525 if (result) {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
526 SDL_SetError ("AudioConverterFillBuffer:%ld\n", result);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
527 afm->mParent->DoNotification(afm->mParent, result);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
528 return result;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
529 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
530
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
531 afm->mBufferOffset = 0;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
532 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
533
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
534 if (ioData->mDataByteSize > afm->mBufferSize - afm->mBufferOffset)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
535 ioData->mDataByteSize = afm->mBufferSize - afm->mBufferOffset;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
536 ioData->mData = (char *)afm->mTmpBuffer + afm->mBufferOffset;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
537 afm->mBufferOffset += ioData->mDataByteSize;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
538
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
539 afm->mByteCounter += ioData->mDataByteSize;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
540 afm->AfterRender(afm);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
541 return result;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
542 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
543
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
544
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
545 void delete_AudioFileManager (AudioFileManager *afm)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
546 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
547 if (afm != NULL) {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
548 if (afm->mFileBuffer) {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
549 free (afm->mFileBuffer);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
550 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
551
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
552 free(afm);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
553 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
554 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
555
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
556
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
557 AudioFileManager *new_AudioFileManager(AudioFilePlayer *inParent,
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
558 SInt16 inForkRefNum,
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
559 SInt64 inFileLength,
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
560 UInt32 inChunkSize)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
561 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
562 AudioFileManager *afm;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
563
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
564 if (sReaderThread == NULL)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
565 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
566 sReaderThread = new_FileReaderThread();
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
567 if (sReaderThread == NULL)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
568 return NULL;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
569 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
570
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
571 afm = (AudioFileManager *) malloc(sizeof (AudioFileManager));
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
572 if (afm == NULL)
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
573 return NULL;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
574 memset(afm, '\0', sizeof (*afm));
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
575
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
576 #define SET_AUDIOFILEMANAGER_METHOD(m) afm->m = AudioFileManager_##m
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
577 SET_AUDIOFILEMANAGER_METHOD(Disconnect);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
578 SET_AUDIOFILEMANAGER_METHOD(DoConnect);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
579 SET_AUDIOFILEMANAGER_METHOD(Read);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
580 SET_AUDIOFILEMANAGER_METHOD(GetFileBuffer);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
581 SET_AUDIOFILEMANAGER_METHOD(GetParent);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
582 SET_AUDIOFILEMANAGER_METHOD(SetPosition);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
583 SET_AUDIOFILEMANAGER_METHOD(GetByteCounter);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
584 SET_AUDIOFILEMANAGER_METHOD(SetEndOfFile);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
585 SET_AUDIOFILEMANAGER_METHOD(Render);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
586 SET_AUDIOFILEMANAGER_METHOD(GetFileData);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
587 SET_AUDIOFILEMANAGER_METHOD(AfterRender);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
588 SET_AUDIOFILEMANAGER_METHOD(FileInputProc);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
589 #undef SET_AUDIOFILEMANAGER_METHOD
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
590
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
591 afm->mParent = inParent;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
592 afm->mForkRefNum = inForkRefNum;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
593 afm->mBufferSize = inChunkSize;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
594 afm->mBufferOffset = inChunkSize;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
595 afm->mChunkSize = inChunkSize;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
596 afm->mFileLength = inFileLength;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
597 afm->mFileBuffer = (char*) malloc (afm->mChunkSize * 2);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
598 FSGetForkPosition(afm->mForkRefNum, &afm->mAudioDataOffset);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
599 assert (afm->mFileBuffer != NULL);
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
600 return afm;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
601 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
602