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annotate src/cdrom/macosx/AudioFilePlayer.h @ 753:b14fdadd8311

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Date: Thu, 4 Dec 2003 07:48:40 +0200 From: "Mike Gorchak" Subject: SDL/QNX6 new patch Here in attachment my patch for the SDL/QNX6 again :) It contain non-crtitical/cosmetic fixes: 1. Fixed window centering at other than the first consoles. 2. Fixed window centering algorithm in case when window height or width are greater than the desktop resolution. 3. Fixed window positioning on other than the first consoles. 4. Fixed occasional input focus lost when switching to fullscreen. 5. Removed the Photon's default chroma color for the overlays, added RGB(12, 6, 12) color instead (very dark pink). 6. Added more checks to the YUV overlay code (fixed crashes during resolution mode switches). 7. Added support for Enter/Backspace keys in unicode mode (used by Maelstrom and by other games). 8. Fixed window restore/maximize function. It works, finally.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 10 Dec 2003 12:35:56 +0000
parents 1bd056de5d1b
children de1b2c3063b9
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
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26 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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27 // AudioFilePlayer.h
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28 //
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29 #ifndef __AudioFilePlayer_H__
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30 #define __AudioFilePlayer_H__
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31
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32 #include <CoreServices/CoreServices.h>
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33
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34 #include <AudioToolbox/AudioToolbox.h>
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35 #include <AudioUnit/AudioUnit.h>
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36
653
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37 #include "SDL_error.h"
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38
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39 const char* AudioFilePlayerErrorStr (OSStatus error);
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40
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41 void ThrowResult (OSStatus result, const char *str);
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42
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43 #define THROW_RESULT(str) \
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44 if (result) { \
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45 ThrowResult (result, str); \
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46 }
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47
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48 typedef void (*AudioFilePlayNotifier)(void *inRefCon,
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49 OSStatus inStatus);
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50
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51 enum {
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52 kAudioFilePlayErr_FilePlayUnderrun = -10000,
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53 kAudioFilePlay_FileIsFinished = -10001,
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54 kAudioFilePlay_PlayerIsUninitialized = -10002
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55 };
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56
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57
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58 class AudioFileManager;
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59
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60 #pragma mark __________ AudioFilePlayer
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61 class AudioFilePlayer
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62 {
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63 public:
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64 AudioFilePlayer (const FSRef *inFileRef);
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65
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66 ~AudioFilePlayer();
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67
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68 void SetDestination (AudioUnit &inDestUnit,
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69 int inBusNumber);
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70
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71 void SetNotifier (AudioFilePlayNotifier inNotifier, void *inRefCon)
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72 {
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73 mNotifier = inNotifier;
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74 mRefCon = inRefCon;
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75 }
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76
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77 void SetStartFrame (int frame); // seek in the file
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78
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79 int GetCurrentFrame (); // get the current frame position
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80
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81 void SetStopFrame (int frame); // set limit in the file
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82
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83 void Connect();
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84
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85 void Disconnect();
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86
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87 void DoNotification (OSStatus inError) const;
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88
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89 bool IsConnected () const { return mConnected; }
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90
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91 UInt32 GetBusNumber () const { return mBusNumber; }
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92
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93 AudioUnit GetDestUnit () const { return mPlayUnit; }
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94
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95 AudioConverterRef GetAudioConverter() const { return mConverter; }
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96
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97 #if DEBUG
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98 void Print() const
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99 {
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100 CAShow (mAudioFileID);
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101 printf ("Destination Bus:%ld\n", GetBusNumber());
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102 printf ("Is 'aunt' unit:%s\n", (mIsAUNTUnit ? "true" : "false"));
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103 printf ("Is Connected:%s\n", (IsConnected() ? "true" : "false"));
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104 if (mConverter) CAShow (mConverter);
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105 printf ("- - - - - - - - - - - - - - \n");
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106 }
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107 #endif
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108
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109 const AudioStreamBasicDescription& GetFileFormat() const { return mFileDescription; }
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110
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111 private:
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112 AudioUnit mPlayUnit;
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113 UInt32 mBusNumber;
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114 AudioFileID mAudioFileID;
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115
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116 AudioUnitInputCallback mInputCallback;
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117
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118 AudioStreamBasicDescription mFileDescription;
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119
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120 bool mConnected;
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121 bool mIsAUNTUnit;
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122
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123 AudioFileManager* mAudioFileManager;
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124 AudioConverterRef mConverter;
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125
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126 AudioFilePlayNotifier mNotifier;
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127 void* mRefCon;
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128
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129 int mStartFrame;
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130
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131 #pragma mark __________ Private_Methods
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132
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133 void OpenFile (const FSRef *inRef, SInt64& outFileSize);
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134 };
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135
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136 #pragma mark __________ AudioFileManager
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137 class AudioFileManager
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138 {
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139 public:
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140 AudioFileManager (AudioFilePlayer& inParent, AudioFileID inFile)
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141 : mParent (inParent),
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142 mAudioFileID (inFile),
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143 mFileBuffer (0),
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144 mByteCounter (0)
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145 {}
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146
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147 virtual ~AudioFileManager();
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148
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149
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150 void Connect (AudioConverterRef inConverter)
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151 {
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152 mParentConverter = inConverter;
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153 DoConnect();
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154 }
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155
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156 // this method should NOT be called by an object of this class
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157 // as it is called by the parent's Disconnect() method
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158 virtual void Disconnect () {}
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159
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160 const AudioFileID& GetFileID() const { return mAudioFileID; }
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161
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162 const char* GetFileBuffer () { return mFileBuffer; }
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163
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164 const AudioFilePlayer& GetParent () const { return mParent; }
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165
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166 virtual void SetPosition (SInt64 pos) = 0; // seek/rewind in the file
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167
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168 virtual int GetByteCounter () { return mByteCounter; } // return actual bytes streamed to audio hardware
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169
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170 virtual void SetEndOfFile (SInt64 pos) = 0; // set the "EOF" (will behave just like it reached eof)
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171
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172 protected:
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173 AudioFilePlayer& mParent;
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174 AudioConverterRef mParentConverter;
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175 const AudioFileID mAudioFileID;
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176
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177 char* mFileBuffer;
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178
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179 OSStatus Render (AudioBuffer &ioData);
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180
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181 int mByteCounter;
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182
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183 virtual OSStatus GetFileData (void** inOutData, UInt32 *inOutDataSize) = 0;
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184
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185 virtual void DoConnect () = 0;
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186
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187 virtual void AfterRender () = 0;
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188
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189 public:
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190 static OSStatus FileInputProc (void *inRefCon,
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191 AudioUnitRenderActionFlags inActionFlags,
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192 const AudioTimeStamp *inTimeStamp,
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193 UInt32 inBusNumber,
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194 AudioBuffer *ioData);
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195 static OSStatus ACInputProc (AudioConverterRef inAudioConverter,
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196 UInt32* outDataSize,
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197 void** outData,
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198 void* inUserData);
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199 };
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200
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201
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202 #pragma mark __________ AudioFileReaderThread
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203 class AudioFileReaderThread
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204 : public AudioFileManager
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205 {
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206 public:
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207 const UInt32 mChunkSize;
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208 SInt64 mFileLength;
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209 SInt64 mReadFilePosition;
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210 bool mWriteToFirstBuffer;
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211 bool mFinishedReadingData;
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212
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213 AudioFileReaderThread (AudioFilePlayer &inParent,
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214 AudioFileID &inFile,
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215 SInt64 inFileLength,
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216 UInt32 inChunkSize);
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217
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218 virtual void Disconnect ();
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219
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220 virtual void SetPosition (SInt64 pos); // seek/rewind in the file
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221
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222 virtual void SetEndOfFile (SInt64 pos); // set the "EOF" (will behave just like it reached eof)
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223
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224 protected:
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225 virtual void DoConnect ();
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226
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227 virtual OSStatus GetFileData (void** inOutData, UInt32 *inOutDataSize);
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228
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229 virtual void AfterRender ();
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230
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231 private:
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232 bool mReadFromFirstBuffer;
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233 bool mLockUnsuccessful;
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234 bool mIsEngaged;
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235
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236 int mNumTimesAskedSinceFinished;
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237 };
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238
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239
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240 #endif