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annotate src/cdrom/macosx/AudioFilePlayer.h @ 1585:980d2a0dc2a3

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Date: Tue, 4 Mar 2003 15:05:31 -0800 From: "Jim" Subject: [SDL] Frame Buffer patches... Okay I'm new at patch generation - so please tell me if there's a better way I could have done this. Attached are two patch files generated with 'cvs diff -u' SDL-fb-open-lock.patch applies to SDL_fbvideo.c Modifies the open loop to check /dev/fb/0 found on devfs... Modifies the lock code to return failure if the current virtual terminal is not the one opened for frame buffer writing... Lock would hang forever if switched away (ctrl-alt-F1) ... SDL-fb-mousedrv-screensave.patch applies to SDL_fbevents.c Switches default mouse mode based on SDL_MOUSEDRV - currently only accepts PS2 - otherwise default is MS Mouse. When the screen is switched - exisiting code (wrapped in ifdef SAVE_SCREEN_COTENTS) would save the wrong bit of the screen.... ( I run frame buffer 1600x1200, the size I requested was 800x600 - the save would save the top 800 lines (non biased) and restore them... Adding screen->offset fixed that ) However, if that option is not set, then a call to SDL_UpdateRect (full screen) is made. (which may have had it's contents changed since the screen is not entirely locked because of lock-failure patch) Jim [patches slightly tweaked for SDL 1.2.10]
author Sam Lantinga <slouken@libsdl.org>
date Wed, 22 Mar 2006 07:48:22 +0000
parents dc6b59e925a2
children 782fd950bd46 c121d94672cb 9df8136abec0
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 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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21
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22 This file based on Apple sample code. We haven't changed the file name,
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23 so if you want to see the original search for it on apple.com/developer
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24 */
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25 #include "SDL_config.h"
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26
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27 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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28 AudioFilePlayer.h
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29 */
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30 #ifndef __AudioFilePlayer_H__
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31 #define __AudioFilePlayer_H__
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32
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33 #include <CoreServices/CoreServices.h>
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34
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35 #include <AudioUnit/AudioUnit.h>
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36
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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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41 /*
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42 void ThrowResult (OSStatus result, const char *str);
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43
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44 #define THROW_RESULT(str) \
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45 if (result) { \
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46 ThrowResult (result, str); \
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47 }
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48 */
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49
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50 typedef void (*AudioFilePlayNotifier)(void *inRefCon,
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51 OSStatus inStatus);
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52
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53 enum {
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54 kAudioFilePlayErr_FilePlayUnderrun = -10000,
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55 kAudioFilePlay_FileIsFinished = -10001,
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56 kAudioFilePlay_PlayerIsUninitialized = -10002
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57 };
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58
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60 struct S_AudioFileManager;
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61
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62 #pragma mark __________ AudioFilePlayer
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63 typedef struct S_AudioFilePlayer
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64 {
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65 /*public:*/
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66 int (*SetDestination)(struct S_AudioFilePlayer *afp, AudioUnit *inDestUnit);
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67 void (*SetNotifier)(struct S_AudioFilePlayer *afp, AudioFilePlayNotifier inNotifier, void *inRefCon);
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68 void (*SetStartFrame)(struct S_AudioFilePlayer *afp, int frame); /* seek in the file */
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69 int (*GetCurrentFrame)(struct S_AudioFilePlayer *afp); /* get the current frame position */
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70 void (*SetStopFrame)(struct S_AudioFilePlayer *afp, int frame); /* set limit in the file */
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71 int (*Connect)(struct S_AudioFilePlayer *afp);
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72 void (*Disconnect)(struct S_AudioFilePlayer *afp);
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73 void (*DoNotification)(struct S_AudioFilePlayer *afp, OSStatus inError);
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74 int (*IsConnected)(struct S_AudioFilePlayer *afp);
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75 AudioUnit (*GetDestUnit)(struct S_AudioFilePlayer *afp);
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76 void (*Print)(struct S_AudioFilePlayer *afp);
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77
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78 /*private:*/
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79 AudioUnit mPlayUnit;
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80 SInt16 mForkRefNum;
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81
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82 AudioUnitInputCallback mInputCallback;
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83
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84 AudioStreamBasicDescription mFileDescription;
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86 int mConnected;
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88 struct S_AudioFileManager* mAudioFileManager;
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89
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90 AudioFilePlayNotifier mNotifier;
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91 void* mRefCon;
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92
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93 int mStartFrame;
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94
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95 #pragma mark __________ Private_Methods
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96
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97 int (*OpenFile)(struct S_AudioFilePlayer *afp, const FSRef *inRef, SInt64 *outFileSize);
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98 } AudioFilePlayer;
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101 AudioFilePlayer *new_AudioFilePlayer(const FSRef *inFileRef);
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102 void delete_AudioFilePlayer(AudioFilePlayer *afp);
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105
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106 #pragma mark __________ AudioFileManager
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107 typedef struct S_AudioFileManager
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108 {
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109 /*public:*/
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110 /* this method should NOT be called by an object of this class
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111 as it is called by the parent's Disconnect() method */
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112 void (*Disconnect)(struct S_AudioFileManager *afm);
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113 int (*DoConnect)(struct S_AudioFileManager *afm);
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114 OSStatus (*Read)(struct S_AudioFileManager *afm, char *buffer, UInt32 *len);
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115 const char* (*GetFileBuffer)(struct S_AudioFileManager *afm);
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116 const AudioFilePlayer *(*GetParent)(struct S_AudioFileManager *afm);
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117 void (*SetPosition)(struct S_AudioFileManager *afm, SInt64 pos); /* seek/rewind in the file */
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118 int (*GetByteCounter)(struct S_AudioFileManager *afm); /* return actual bytes streamed to audio hardware */
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119 void (*SetEndOfFile)(struct S_AudioFileManager *afm, SInt64 pos); /* set the "EOF" (will behave just like it reached eof) */
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120
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121 /*protected:*/
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122 AudioFilePlayer* mParent;
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123 SInt16 mForkRefNum;
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124 SInt64 mAudioDataOffset;
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125
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126 char* mFileBuffer;
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127
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128 int mByteCounter;
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129
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130 int mReadFromFirstBuffer;
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131 int mLockUnsuccessful;
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132 int mIsEngaged;
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133
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134 int mNumTimesAskedSinceFinished;
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135
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136
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137 void* mTmpBuffer;
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138 UInt32 mBufferSize;
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139 UInt32 mBufferOffset;
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140 /*public:*/
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141 UInt32 mChunkSize;
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142 SInt64 mFileLength;
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143 SInt64 mReadFilePosition;
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144 int mWriteToFirstBuffer;
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145 int mFinishedReadingData;
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146
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147 /*protected:*/
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148 OSStatus (*Render)(struct S_AudioFileManager *afm, AudioBuffer *ioData);
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149 OSStatus (*GetFileData)(struct S_AudioFileManager *afm, void** inOutData, UInt32 *inOutDataSize);
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150 void (*AfterRender)(struct S_AudioFileManager *afm);
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151
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152 /*public:*/
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153 /*static*/
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154 OSStatus (*FileInputProc)(void *inRefCon,
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155 AudioUnitRenderActionFlags inActionFlags,
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156 const AudioTimeStamp *inTimeStamp,
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157 UInt32 inBusNumber,
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158 AudioBuffer *ioData);
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159 } AudioFileManager;
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160
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161
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162 AudioFileManager *new_AudioFileManager (AudioFilePlayer *inParent,
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163 SInt16 inForkRefNum,
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164 SInt64 inFileLength,
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165 UInt32 inChunkSize);
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166
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167 void delete_AudioFileManager(AudioFileManager *afm);
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168
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169 #endif
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170