fix alpha for 32bpp screen
[sdl_omap.git] / src / cdrom / macosx / AudioFilePlayer.h
CommitLineData
e14743d1 1/*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2009 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21
22 This file based on Apple sample code. We haven't changed the file name,
23 so if you want to see the original search for it on apple.com/developer
24*/
25#include "SDL_config.h"
26
27/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
28 AudioFilePlayer.h
29*/
30#ifndef __AudioFilePlayer_H__
31#define __AudioFilePlayer_H__
32
33#include <CoreServices/CoreServices.h>
34
35#include <AudioUnit/AudioUnit.h>
36#if MAC_OS_X_VERSION_MAX_ALLOWED <= 1050
37#include <AudioUnit/AUNTComponent.h>
38#endif
39
40#if __MAC_OS_X_VERSION_MIN_REQUIRED < 1050
41typedef SInt16 FSIORefNum;
42#endif
43
44#include "SDL_error.h"
45
46const char* AudioFilePlayerErrorStr (OSStatus error);
47
48/*
49void ThrowResult (OSStatus result, const char *str);
50
51#define THROW_RESULT(str) \
52 if (result) { \
53 ThrowResult (result, str); \
54 }
55*/
56
57typedef void (*AudioFilePlayNotifier)(void *inRefCon,
58 OSStatus inStatus);
59
60enum {
61 kAudioFilePlayErr_FilePlayUnderrun = -10000,
62 kAudioFilePlay_FileIsFinished = -10001,
63 kAudioFilePlay_PlayerIsUninitialized = -10002
64};
65
66
67struct S_AudioFileManager;
68
69#pragma mark __________ AudioFilePlayer
70typedef struct S_AudioFilePlayer
71{
72/*public:*/
73 int (*SetDestination)(struct S_AudioFilePlayer *afp, AudioUnit *inDestUnit);
74 void (*SetNotifier)(struct S_AudioFilePlayer *afp, AudioFilePlayNotifier inNotifier, void *inRefCon);
75 void (*SetStartFrame)(struct S_AudioFilePlayer *afp, int frame); /* seek in the file */
76 int (*GetCurrentFrame)(struct S_AudioFilePlayer *afp); /* get the current frame position */
77 void (*SetStopFrame)(struct S_AudioFilePlayer *afp, int frame); /* set limit in the file */
78 int (*Connect)(struct S_AudioFilePlayer *afp);
79 void (*Disconnect)(struct S_AudioFilePlayer *afp);
80 void (*DoNotification)(struct S_AudioFilePlayer *afp, OSStatus inError);
81 int (*IsConnected)(struct S_AudioFilePlayer *afp);
82 AudioUnit (*GetDestUnit)(struct S_AudioFilePlayer *afp);
83 void (*Print)(struct S_AudioFilePlayer *afp);
84
85/*private:*/
86 AudioUnit mPlayUnit;
87 FSIORefNum mForkRefNum;
88
89 AURenderCallbackStruct mInputCallback;
90
91 AudioStreamBasicDescription mFileDescription;
92
93 int mConnected;
94
95 struct S_AudioFileManager* mAudioFileManager;
96
97 AudioFilePlayNotifier mNotifier;
98 void* mRefCon;
99
100 int mStartFrame;
101
102#pragma mark __________ Private_Methods
103
104 int (*OpenFile)(struct S_AudioFilePlayer *afp, const FSRef *inRef, SInt64 *outFileSize);
105} AudioFilePlayer;
106
107
108AudioFilePlayer *new_AudioFilePlayer(const FSRef *inFileRef);
109void delete_AudioFilePlayer(AudioFilePlayer *afp);
110
111
112
113#pragma mark __________ AudioFileManager
114typedef struct S_AudioFileManager
115{
116/*public:*/
117 /* this method should NOT be called by an object of this class
118 as it is called by the parent's Disconnect() method */
119 void (*Disconnect)(struct S_AudioFileManager *afm);
120 int (*DoConnect)(struct S_AudioFileManager *afm);
121 OSStatus (*Read)(struct S_AudioFileManager *afm, char *buffer, ByteCount *len);
122 const char* (*GetFileBuffer)(struct S_AudioFileManager *afm);
123 const AudioFilePlayer *(*GetParent)(struct S_AudioFileManager *afm);
124 void (*SetPosition)(struct S_AudioFileManager *afm, SInt64 pos); /* seek/rewind in the file */
125 int (*GetByteCounter)(struct S_AudioFileManager *afm); /* return actual bytes streamed to audio hardware */
126 void (*SetEndOfFile)(struct S_AudioFileManager *afm, SInt64 pos); /* set the "EOF" (will behave just like it reached eof) */
127
128/*protected:*/
129 AudioFilePlayer* mParent;
130 SInt16 mForkRefNum;
131 SInt64 mAudioDataOffset;
132
133 char* mFileBuffer;
134
135 int mByteCounter;
136
137 int mReadFromFirstBuffer;
138 int mLockUnsuccessful;
139 int mIsEngaged;
140
141 int mNumTimesAskedSinceFinished;
142
143
144 void* mTmpBuffer;
145 UInt32 mBufferSize;
146 UInt32 mBufferOffset;
147/*public:*/
148 UInt32 mChunkSize;
149 SInt64 mFileLength;
150 SInt64 mReadFilePosition;
151 int mWriteToFirstBuffer;
152 int mFinishedReadingData;
153
154/*protected:*/
155 OSStatus (*Render)(struct S_AudioFileManager *afm, AudioBufferList *ioData);
156 OSStatus (*GetFileData)(struct S_AudioFileManager *afm, void** inOutData, UInt32 *inOutDataSize);
157 void (*AfterRender)(struct S_AudioFileManager *afm);
158
159/*public:*/
160 /*static*/
161 OSStatus (*FileInputProc)(void *inRefCon,
162 AudioUnitRenderActionFlags *ioActionFlags,
163 const AudioTimeStamp *inTimeStamp,
164 UInt32 inBusNumber,
165 UInt32 inNumberFrames,
166 AudioBufferList *ioData);
167} AudioFileManager;
168
169
170AudioFileManager *new_AudioFileManager (AudioFilePlayer *inParent,
171 SInt16 inForkRefNum,
172 SInt64 inFileLength,
173 UInt32 inChunkSize);
174
175void delete_AudioFileManager(AudioFileManager *afm);
176
177#endif
178