cc68a136 |
1 | /*******************************************************************\r |
2 | *\r |
3 | * File: Audio_mediaserver.h\r |
4 | *\r |
5 | * Author: Peter van Sebille (peter@yipton.net)\r |
6 | *\r |
7 | * Modified/adapted for picodriveN by notaz, 2006\r |
8 | *\r |
9 | * (c) Copyright 2006, notaz\r |
10 | * (c) Copyright 2001, Peter van Sebille\r |
11 | * All Rights Reserved\r |
12 | *\r |
13 | *******************************************************************/\r |
14 | \r |
15 | #ifndef __AUDIO_MEDIASERVER_H\r |
16 | #define __AUDIO_MEDIASERVER_H\r |
17 | \r |
18 | #include <Mda\Common\Audio.h>\r |
19 | #include <MdaAudioOutputStream.h>\r |
20 | \r |
21 | #include "audio.h"\r |
22 | #include "polledas.h"\r |
23 | \r |
24 | const TInt KSoundBuffers = 4;\r |
25 | const TInt KBlockTime = 1000000 / 5; // hardcoded: 5 updates/sec\r |
26 | const TInt KMaxLag = 260000; // max sound lag, lower values increase chanse of underflow\r |
27 | const TInt KMaxUnderflows = 50; // max underflows/API errors we are going allow in a row (to prevent lockups)\r |
28 | \r |
29 | \r |
30 | class TGameAudioEventListener : public MMdaAudioOutputStreamCallback\r |
31 | {\r |
32 | public: // implements MMdaAudioOutputStreamCallback\r |
33 | void MaoscOpenComplete(TInt aError);\r |
34 | void MaoscBufferCopied(TInt aError, const TDesC8& );\r |
35 | void MaoscPlayComplete(TInt aError);\r |
36 | \r |
37 | TBool iIsOpen;\r |
38 | // TBool iHasCopied;\r |
39 | TInt iUnderflowed;\r |
40 | };\r |
41 | \r |
42 | \r |
43 | class CGameAudioMS : public IGameAudio // IGameAudio MUST be specified first!\r |
44 | {\r |
45 | public: // implements IGameAudio\r |
46 | TInt16 *NextFrameL();\r |
47 | TInt16 *DupeFrameL(TInt &aUnderflowed);\r |
48 | TInt16 *ResumeL();\r |
49 | void Pause();\r |
50 | void ChangeVolume(TInt aUp);\r |
51 | \r |
52 | public:\r |
53 | ~CGameAudioMS();\r |
54 | CGameAudioMS(TInt aRate, TBool aStereo, TInt aPcmFrames, TInt aBufferedFrames);\r |
55 | void ConstructL();\r |
56 | EXPORT_C static CGameAudioMS* NewL(TInt aRate, TBool aStereo, TInt aPcmFrames, TInt aBufferedFrames);\r |
57 | \r |
58 | protected:\r |
59 | void WriteBlockL();\r |
60 | void UnderflowedL();\r |
61 | \r |
62 | protected:\r |
63 | void WaitForOpenToCompleteL();\r |
64 | // void WaitForCopyToCompleteL();\r |
65 | \r |
66 | TInt iRate;\r |
67 | TBool iStereo;\r |
68 | \r |
69 | CMdaAudioOutputStream *iMdaAudioOutputStream;\r |
70 | TMdaAudioDataSettings iMdaAudioDataSettings;\r |
71 | \r |
72 | TGameAudioEventListener iListener;\r |
73 | \r |
74 | CPolledActiveScheduler *iScheduler;\r |
75 | \r |
76 | HBufC8* iSoundBuffers[KSoundBuffers+1];\r |
77 | TInt iBufferedFrames;\r |
78 | TInt16* iCurrentPosition;\r |
79 | TInt iCurrentBuffer;\r |
80 | TInt iFrameCount;\r |
81 | TInt iPcmFrames;\r |
82 | CMdaServer* iServer;\r |
83 | \r |
84 | TInt64 iTime;\r |
85 | };\r |
86 | \r |
87 | #endif /* __AUDIO_MEDIASERVER_H */\r |