Mercurial > sdl-ios-xcode

annotate src/cdrom/macosx/AudioFileReaderThread.c @ 1780:7a36f01acf71

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Fixed bug #49 Added support for non-blocking VT switching on the framebuffer console.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 08 May 2006 05:33:02 +0000
parents dc6b59e925a2
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
rev   line source
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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 #include "SDL_config.h"
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26
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27 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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28 AudioFileManager.cpp
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29 */
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30 #include "AudioFilePlayer.h"
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31 #include <mach/mach.h> /* used for setting policy of thread */
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32 #include "SDLOSXCAGuard.h"
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33 #include <pthread.h>
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34
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35 /*#include <list>*/
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36
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37 /*typedef void *FileData;*/
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38 typedef struct S_FileData
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39 {
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40 AudioFileManager *obj;
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41 struct S_FileData *next;
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42 } FileData;
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44
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45 typedef struct S_FileReaderThread {
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46 /*public:*/
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47 SDLOSXCAGuard* (*GetGuard)(struct S_FileReaderThread *frt);
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48 void (*AddReader)(struct S_FileReaderThread *frt);
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49 void (*RemoveReader)(struct S_FileReaderThread *frt, AudioFileManager* inItem);
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50 int (*TryNextRead)(struct S_FileReaderThread *frt, AudioFileManager* inItem);
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51
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52 int mThreadShouldDie;
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53
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54 /*private:*/
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55 /*typedef std::list<AudioFileManager*> FileData;*/
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56
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57 SDLOSXCAGuard *mGuard;
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58 UInt32 mThreadPriority;
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59
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60 int mNumReaders;
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61 FileData *mFileData;
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62
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63
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64 void (*ReadNextChunk)(struct S_FileReaderThread *frt);
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65 int (*StartFixedPriorityThread)(struct S_FileReaderThread *frt);
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66 /*static*/
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67 UInt32 (*GetThreadBasePriority)(pthread_t inThread);
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68 /*static*/
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69 void* (*DiskReaderEntry)(void *inRefCon);
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70 } FileReaderThread;
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71
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72
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73 static SDLOSXCAGuard* FileReaderThread_GetGuard(FileReaderThread *frt)
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74 {
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75 return frt->mGuard;
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76 }
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77
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78 /* returns 1 if succeeded */
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79 static int FileReaderThread_TryNextRead (FileReaderThread *frt, AudioFileManager* inItem)
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80 {
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81 int didLock = 0;
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82 int succeeded = 0;
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83 if (frt->mGuard->Try(frt->mGuard, &didLock))
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84 {
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85 /*frt->mFileData.push_back (inItem);*/
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86 /* !!! FIXME: this could be faster with a "tail" member. --ryan. */
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87 FileData *i = frt->mFileData;
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88 FileData *prev = NULL;
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89
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90 FileData *newfd = (FileData *) SDL_malloc(sizeof (FileData));
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91 newfd->obj = inItem;
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92 newfd->next = NULL;
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93
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94 while (i != NULL) { prev = i; i = i->next; }
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95 if (prev == NULL)
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96 frt->mFileData = newfd;
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97 else
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98 prev->next = newfd;
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99
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100 frt->mGuard->Notify(frt->mGuard);
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101 succeeded = 1;
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102
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103 if (didLock)
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104 frt->mGuard->Unlock(frt->mGuard);
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105 }
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106
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107 return succeeded;
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108 }
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109
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110 static void FileReaderThread_AddReader(FileReaderThread *frt)
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111 {
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112 if (frt->mNumReaders == 0)
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113 {
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114 frt->mThreadShouldDie = 0;
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115 frt->StartFixedPriorityThread (frt);
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116 }
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117 frt->mNumReaders++;
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118 }
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119
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120 static void FileReaderThread_RemoveReader (FileReaderThread *frt, AudioFileManager* inItem)
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121 {
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122 if (frt->mNumReaders > 0)
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123 {
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124 int bNeedsRelease = frt->mGuard->Lock(frt->mGuard);
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125
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126 /*frt->mFileData.remove (inItem);*/
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127 FileData *i = frt->mFileData;
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128 FileData *prev = NULL;
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129 while (i != NULL)
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130 {
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131 FileData *next = i->next;
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132 if (i->obj != inItem)
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133 prev = i;
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134 else
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135 {
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136 if (prev == NULL)
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137 frt->mFileData = next;
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138 else
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139 prev->next = next;
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140 SDL_free(i);
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141 }
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142 i = next;
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143 }
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144
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145 if (--frt->mNumReaders == 0) {
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146 frt->mThreadShouldDie = 1;
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147 frt->mGuard->Notify(frt->mGuard); /* wake up thread so it will quit */
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148 frt->mGuard->Wait(frt->mGuard); /* wait for thread to die */
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149 }
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150
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151 if (bNeedsRelease) frt->mGuard->Unlock(frt->mGuard);
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152 }
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153 }
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154
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155 static int FileReaderThread_StartFixedPriorityThread (FileReaderThread *frt)
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156 {
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157 pthread_attr_t theThreadAttrs;
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158 pthread_t pThread;
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159
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160 OSStatus result = pthread_attr_init(&theThreadAttrs);
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161 if (result) return 0; /*THROW_RESULT("pthread_attr_init - Thread attributes could not be created.")*/
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162
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163 result = pthread_attr_setdetachstate(&theThreadAttrs, PTHREAD_CREATE_DETACHED);
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164 if (result) return 0; /*THROW_RESULT("pthread_attr_setdetachstate - Thread attributes could not be detached.")*/
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165
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166 result = pthread_create (&pThread, &theThreadAttrs, frt->DiskReaderEntry, frt);
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167 if (result) return 0; /*THROW_RESULT("pthread_create - Create and start the thread.")*/
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168
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169 pthread_attr_destroy(&theThreadAttrs);
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170
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171 /* we've now created the thread and started it
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172 we'll now set the priority of the thread to the nominated priority
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173 and we'll also make the thread fixed */
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174 thread_extended_policy_data_t theFixedPolicy;
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175 thread_precedence_policy_data_t thePrecedencePolicy;
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176 SInt32 relativePriority;
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177
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178 /* make thread fixed */
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179 theFixedPolicy.timeshare = 0; /* set to 1 for a non-fixed thread */
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180 result = thread_policy_set (pthread_mach_thread_np(pThread), THREAD_EXTENDED_POLICY, (thread_policy_t)&theFixedPolicy, THREAD_EXTENDED_POLICY_COUNT);
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181 if (result) return 0; /*THROW_RESULT("thread_policy - Couldn't set thread as fixed priority.")*/
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182 /* set priority */
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183 /* precedency policy's "importance" value is relative to spawning thread's priority */
1143
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184 relativePriority = frt->mThreadPriority - frt->GetThreadBasePriority(pthread_self());
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185
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186 thePrecedencePolicy.importance = relativePriority;
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187 result = thread_policy_set (pthread_mach_thread_np(pThread), THREAD_PRECEDENCE_POLICY, (thread_policy_t)&thePrecedencePolicy, THREAD_PRECEDENCE_POLICY_COUNT);
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188 if (result) return 0; /*THROW_RESULT("thread_policy - Couldn't set thread priority.")*/
1143
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189
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190 return 1;
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191 }
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192
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193 static UInt32 FileReaderThread_GetThreadBasePriority (pthread_t inThread)
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194 {
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195 thread_basic_info_data_t threadInfo;
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196 policy_info_data_t thePolicyInfo;
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197 unsigned int count;
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198
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199 /* get basic info */
1143
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200 count = THREAD_BASIC_INFO_COUNT;
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201 thread_info (pthread_mach_thread_np (inThread), THREAD_BASIC_INFO, (integer_t*)&threadInfo, &count);
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202
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203 switch (threadInfo.policy) {
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204 case POLICY_TIMESHARE:
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205 count = POLICY_TIMESHARE_INFO_COUNT;
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206 thread_info(pthread_mach_thread_np (inThread), THREAD_SCHED_TIMESHARE_INFO, (integer_t*)&(thePolicyInfo.ts), &count);
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207 return thePolicyInfo.ts.base_priority;
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208 break;
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209
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210 case POLICY_FIFO:
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211 count = POLICY_FIFO_INFO_COUNT;
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212 thread_info(pthread_mach_thread_np (inThread), THREAD_SCHED_FIFO_INFO, (integer_t*)&(thePolicyInfo.fifo), &count);
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213 if (thePolicyInfo.fifo.depressed) {
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214 return thePolicyInfo.fifo.depress_priority;
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215 } else {
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216 return thePolicyInfo.fifo.base_priority;
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217 }
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218 break;
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219
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220 case POLICY_RR:
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221 count = POLICY_RR_INFO_COUNT;
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222 thread_info(pthread_mach_thread_np (inThread), THREAD_SCHED_RR_INFO, (integer_t*)&(thePolicyInfo.rr), &count);
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223 if (thePolicyInfo.rr.depressed) {
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diff changeset
224 return thePolicyInfo.rr.depress_priority;
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diff changeset
225 } else {
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226 return thePolicyInfo.rr.base_priority;
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227 }
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228 break;
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229 }
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230
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231 return 0;
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232 }
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233
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234 static void *FileReaderThread_DiskReaderEntry (void *inRefCon)
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235 {
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236 FileReaderThread *frt = (FileReaderThread *)inRefCon;
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237 frt->ReadNextChunk(frt);
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diff changeset
238 #if DEBUG
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239 printf ("finished with reading file\n");
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240 #endif
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241
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242 return 0;
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diff changeset
243 }
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244
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
245 static void FileReaderThread_ReadNextChunk (FileReaderThread *frt)
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246 {
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247 OSStatus result;
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248 UInt32 dataChunkSize;
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diff changeset
249 AudioFileManager* theItem = 0;
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diff changeset
250
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diff changeset
251 for (;;)
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252 {
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253 { /* this is a scoped based lock */
1143
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254 int bNeedsRelease = frt->mGuard->Lock(frt->mGuard);
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parents:
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255
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diff changeset
256 if (frt->mThreadShouldDie) {
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257 frt->mGuard->Notify(frt->mGuard);
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258 if (bNeedsRelease) frt->mGuard->Unlock(frt->mGuard);
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diff changeset
259 return;
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parents:
diff changeset
260 }
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diff changeset
261
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262 /*if (frt->mFileData.empty())*/
1143
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263 if (frt->mFileData == NULL)
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264 {
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Ryan C. Gordon <icculus@icculus.org>
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265 frt->mGuard->Wait(frt->mGuard);
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266 }
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267
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268 /* kill thread */
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269 if (frt->mThreadShouldDie) {
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270
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271 frt->mGuard->Notify(frt->mGuard);
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272 if (bNeedsRelease) frt->mGuard->Unlock(frt->mGuard);
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273 return;
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274 }
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275
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276 /*theItem = frt->mFileData.front();*/
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277 /*frt->mFileData.pop_front();*/
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278 theItem = NULL;
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279 if (frt->mFileData != NULL)
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280 {
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281 FileData *next = frt->mFileData->next;
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282 theItem = frt->mFileData->obj;
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283 SDL_free(frt->mFileData);
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284 frt->mFileData = next;
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285 }
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286
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287 if (bNeedsRelease) frt->mGuard->Unlock(frt->mGuard);
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288 }
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289
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290 if ((theItem->mFileLength - theItem->mReadFilePosition) < theItem->mChunkSize)
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291 dataChunkSize = theItem->mFileLength - theItem->mReadFilePosition;
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292 else
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293 dataChunkSize = theItem->mChunkSize;
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294
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295 /* this is the exit condition for the thread */
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296 if (dataChunkSize <= 0) {
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297 theItem->mFinishedReadingData = 1;
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298 continue;
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299 }
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300 /* construct pointer */
1143
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301 char* writePtr = (char *) (theItem->GetFileBuffer(theItem) +
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302 (theItem->mWriteToFirstBuffer ? 0 : theItem->mChunkSize));
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303
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304 /* read data */
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305 result = theItem->Read(theItem, writePtr, &dataChunkSize);
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diff changeset
306 if (result != noErr && result != eofErr) {
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307 AudioFilePlayer *afp = (AudioFilePlayer *) theItem->GetParent(theItem);
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308 afp->DoNotification(afp, result);
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309 continue;
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diff changeset
310 }
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311
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
312 if (dataChunkSize != theItem->mChunkSize)
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313 {
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diff changeset
314 writePtr += dataChunkSize;
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315
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316 /* can't exit yet.. we still have to pass the partial buffer back */
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317 SDL_memset(writePtr, 0, (theItem->mChunkSize - dataChunkSize));
1143
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318 }
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319
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320 theItem->mWriteToFirstBuffer = !theItem->mWriteToFirstBuffer; /* switch buffers */
1143
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diff changeset
321
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
322 if (result == eofErr)
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
323 theItem->mReadFilePosition = theItem->mFileLength;
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diff changeset
324 else
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325 theItem->mReadFilePosition += dataChunkSize; /* increment count */
1143
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diff changeset
326 }
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
327 }
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
328
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
329 void delete_FileReaderThread(FileReaderThread *frt)
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
330 {
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
331 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
332 {
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
333 delete_SDLOSXCAGuard(frt->mGuard);
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1143
diff changeset
334 SDL_free(frt);
1143
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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>
parents:
diff changeset
337
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
338 FileReaderThread *new_FileReaderThread ()
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
339 {
1336
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
340 FileReaderThread *frt = (FileReaderThread *) SDL_malloc(sizeof (FileReaderThread));
1143
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diff changeset
341 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>
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diff changeset
342 return NULL;
1336
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diff changeset
343 SDL_memset(frt, '\0', sizeof (*frt));
1143
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diff changeset
344
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
345 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
346 if (frt->mGuard == 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
347 {
1336
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
348 SDL_free(frt);
1143
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diff changeset
349 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
350 }
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
351
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 #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
353 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
354 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
355 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
356 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
357 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
358 SET_FILEREADERTHREAD_METHOD(StartFixedPriorityThread);
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
359 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>
parents:
diff changeset
360 SET_FILEREADERTHREAD_METHOD(DiskReaderEntry);
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
361 #undef SET_FILEREADERTHREAD_METHOD
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
362
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 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
364 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
365 }
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
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
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
368 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>
parents:
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>
parents:
diff changeset
370
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
371 static int AudioFileManager_DoConnect (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
372 {
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 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
374 {
1487
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diff changeset
375 OSStatus result;
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
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diff changeset
376
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
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diff changeset
377 /*afm->mReadFilePosition = 0;*/
1143
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diff changeset
378 afm->mFinishedReadingData = 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
379
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
380 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
381 afm->mLockUnsuccessful = 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
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 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
384
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 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
386 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
387 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
388 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
389
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 result = afm->Read(afm, afm->mFileBuffer, &dataChunkSize);
1487
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
391 if (result) return 0; /*THROW_RESULT("AudioFileManager::DoConnect(): Read")*/
1143
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->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
394
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 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
396 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
397
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
398 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
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 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
401 }
1487
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
402 /*
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
403 else
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
404 throw static_cast<OSStatus>(-1); */ /* thread has already been started */
1143
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 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
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
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 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
410 {
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 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
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 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
414 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
415 }
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
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 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
419 {
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 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
421 fsFromStart,
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 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
423 *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
424 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
425 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
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
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 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
429 {
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 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
431 {
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 ++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
433 *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
434 *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
435 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
436 }
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
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 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
439 #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
440 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
441 #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
442
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 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
444 *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
445 *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
446 } 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
447 *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
448 *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
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
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 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
452
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 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
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 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
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
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 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
459 {
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 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
461 {
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 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
463 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
464 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
465 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
466 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
467 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
468 }
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 }
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 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
472 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
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
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 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
476 {
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 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
478 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
479 (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
480 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
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 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
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
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 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
487 {
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 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
489 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
490 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
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 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
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
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 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
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 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
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
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 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
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 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
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
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 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
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 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
509 }
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
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
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 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
513 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
514 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
515 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
516 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
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 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
519 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
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
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 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
523 {
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 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
525
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 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
527 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
528 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
529 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
530 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
531 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
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 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
535 }
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
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 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
538 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
539 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
540 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
541
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 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
543 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
544 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
545 }
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
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 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
549 {
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 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
551 if (afm->mFileBuffer) {
1338
604d73db6802 Removed uses of stdlib.h and string.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
552 free(afm->mFileBuffer);
1143
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
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1143
diff changeset
555 SDL_free(afm);
1143
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 }
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
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
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 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
561 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
562 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
563 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
564 {
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 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
566
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 {
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 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
570 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
571 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
572 }
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
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1143
diff changeset
574 afm = (AudioFileManager *) SDL_malloc(sizeof (AudioFileManager));
1143
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 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
576 return NULL;
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1143
diff changeset
577 SDL_memset(afm, '\0', sizeof (*afm));
1143
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
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 #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
580 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
581 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
582 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
583 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
584 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
585 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
586 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
587 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
588 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
589 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
590 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
591 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
592 #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
593
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->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
595 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
596 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
597 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
598 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
599 afm->mFileLength = inFileLength;
1338
604d73db6802 Removed uses of stdlib.h and string.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
600 afm->mFileBuffer = (char*) SDL_malloc(afm->mChunkSize * 2);
1143
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 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
602 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
603 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
604 }
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
605