platform/uiq3/engine/audio_mediaserver.h

   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 \r
  26 \r
  27 class TGameAudioEventListener : public MMdaAudioOutputStreamCallback\r
  28 {\r
  29 public: // implements MMdaAudioOutputStreamCallback\r
  30         void MaoscOpenComplete(TInt aError);\r
  31         void MaoscBufferCopied(TInt aError, const TDesC8& );\r
  32         void MaoscPlayComplete(TInt aError);\r
  33 \r
  34         TBool                                   iIsOpen;\r
  35 //      TBool                                   iHasCopied;\r
  36         TInt                                    iUnderflowed;\r
  37         TInt                                    iLastError;\r
  38 };\r
  39 \r
  40 \r
  41 class CGameAudioMS // : public IGameAudio // IGameAudio MUST be specified first!\r
  42 {\r
  43 public: // implements IGameAudio\r
  44         TInt16 *NextFrameL(TInt aPcmFrames);\r
  45         TInt16 *ResumeL();\r
  46         void Pause();\r
  47         TInt ChangeVolume(TInt aUp);\r
  48 \r
  49 public:\r
  50         ~CGameAudioMS();\r
  51         CGameAudioMS(TInt aRate, TBool aStereo, TInt aWritesPerSec, TInt aVolume);\r
  52         static CGameAudioMS* NewL(TInt aRate, TBool aStereo, TInt aWritesPerSec, TInt aVolume);\r
  53 \r
  54 protected:\r
  55         void WriteBlockL();\r
  56         void UnderflowedL();\r
  57         void ConstructL();\r
  58 \r
  59 protected:\r
  60         void WaitForOpenToCompleteL();\r
  61 \r
  62         TInt                                    iRate;\r
  63         TBool                                   iStereo;\r
  64 \r
  65         CMdaAudioOutputStream   *iMdaAudioOutputStream;\r
  66         TMdaAudioDataSettings   iMdaAudioDataSettings;\r
  67 \r
  68         TGameAudioEventListener iListener;\r
  69 \r
  70         CPolledActiveScheduler  *iScheduler;\r
  71 \r
  72         HBufC8*                                 iSoundBuffers[KSoundBuffers];\r
  73         TInt                                    iWritesPerSec;                  // fps, may be more actual writes\r
  74         TInt                                    iMaxWriteSamples;               // max samples per write\r
  75         TInt16*                                 iCurrentPosition;\r
  76         TInt                                    iCurrentBuffer;                 // active buffer\r
  77         TInt                                    iCurrentBufferSize;             // bytes filled in buffer\r
  78         TInt                                    iBufferSize;\r
  79         CMdaServer*                             iServer;\r
  80 \r
  81         TInt64                                  iTime;\r
  82         TInt                                    iVolume;\r
  83 };\r
  84 \r
  85 #endif                  /* __AUDIO_MEDIASERVER_H */\r