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annotate src/cdrom/macosx/AudioFileReaderThread.c @ 4168:69bcba65c388 SDL-1.2

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Fixed bug #526 Comment #1 From Simon Howard 2009-03-20 16:50:56 Hi, I'm the author of Chocolate Doom, one of the other source ports that James mentioned. This is a patch against the current SVN version of SDL 1.2 that fixes the bug. It has been tested and hopefully should be obviously correct from examining the changes. I'll give a brief explanation. When the palette is set with SDL_SetPalette, the IDirectDrawPalette_SetEntries DirectX function is invoked. However, when this happens, a WM_PALETTECHANGED message is sent to the window. A WM_PALETTECHANGED message can also be received if the palette is changed for some other reason, like if the system palette is changed. Therefore, the palette change handler (DX5_PaletteChanged) has code to deal with this case. It distinguishes "expected" palette changes (set with SDL_SetPalette) from "unexpected" palette changes using the colorchange_expected variable, which is set before calling IDirectDrawPalette_SetEntries. However, the code to set this variable is missing in the fullscreen code path. By setting this variable, the palette change is handled properly and the freezes go away.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 13 Apr 2009 00:53:12 +0000
parents a1b03ba2fcd0
children 386181851388
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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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19 Sam Lantinga
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20 slouken@libsdl.org
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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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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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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;
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
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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 */
1143
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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.")*/
1143
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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.")*/
1143
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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.")*/
1143
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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 */
1143
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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 */
1143
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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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diff changeset
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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diff changeset
214 return thePolicyInfo.fifo.depress_priority;
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diff changeset
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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diff changeset
219
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220 case POLICY_RR:
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diff changeset
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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diff changeset
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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diff changeset
226 return thePolicyInfo.rr.base_priority;
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diff changeset
227 }
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228 break;
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diff changeset
229 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
230
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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231 return 0;
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diff changeset
232 }
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233
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
234 static void *FileReaderThread_DiskReaderEntry (void *inRefCon)
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diff changeset
235 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
236 FileReaderThread *frt = (FileReaderThread *)inRefCon;
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diff changeset
237 frt->ReadNextChunk(frt);
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diff changeset
238 #if DEBUG
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diff changeset
239 printf ("finished with reading file\n");
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diff changeset
240 #endif
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241
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diff changeset
242 return 0;
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diff changeset
243 }
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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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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diff changeset
246 {
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
247 OSStatus result;
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
248 UInt32 dataChunkSize;
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diff changeset
249 AudioFileManager* theItem = 0;
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diff changeset
250
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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parents:
diff changeset
251 for (;;)
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parents:
diff changeset
252 {
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253 { /* this is a scoped based lock */
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254 int bNeedsRelease = frt->mGuard->Lock(frt->mGuard);
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255
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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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diff changeset
260 }
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diff changeset
261
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262 /*if (frt->mFileData.empty())*/
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263 if (frt->mFileData == NULL)
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264 {
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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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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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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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321
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Ryan C. Gordon <icculus@icculus.org>
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diff changeset
322 if (result == eofErr)
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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 }
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Ryan C. Gordon <icculus@icculus.org>
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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>
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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)
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
332 {
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
333 delete_SDLOSXCAGuard(frt->mGuard);
1336
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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>
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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>
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diff changeset
338 FileReaderThread *new_FileReaderThread ()
71a2648acc75 Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam
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diff changeset
339 {
1336
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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)
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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
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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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diff changeset
348 SDL_free(frt);
1143
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diff changeset
349 return NULL;
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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>
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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>
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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;
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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)
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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 {
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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
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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>
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>
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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>
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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:
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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:
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517 {
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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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:
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519 return afm->Render(afm, ioData);
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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:
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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