platform/uiq2/audio/motorola/audio_motorola.h

   1 /*******************************************************************\r
   2  *\r
   3  *      File:           Audio_motorola.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 <cmaudiofb.h>\r
  19 \r
  20 #include "audio.h"\r
  21 #include "polledas.h"\r
  22 \r
  23 const TInt KSoundBuffers = 8;\r
  24 const TInt KMaxUnderflows = 20; // max underflows/API errors we are going allow in a row (to prevent lockups)\r
  25 \r
  26 \r
  27 class TGameAudioEventListener : public MMAudioFBObserver, public MMAudioACObserver\r
  28 {\r
  29 public:\r
  30         // Implementation of MMAudioFBObserver\r
  31         void OnEvent(TMAudioFBCallbackState aState, TInt aError);\r
  32         void OnEvent(TMAudioFBCallbackState aState, TInt aError, TDes8* aBuffer);\r
  33         // Implementation of MMAudioACObserver\r
  34         void OnEvent(TMAudioACCallbackState aState, TInt aError);\r
  35 \r
  36         TBool                                   iIsOpen;\r
  37         TBool                                   iIsCtrlOpen;\r
  38 //      TBool                                   iHasCopied;\r
  39         TInt                                    iUnderflowed;\r
  40         TBool                                   iFatalError;\r
  41 };\r
  42 \r
  43 \r
  44 class CGameAudioMot : public IGameAudio // IGameAudio MUST be specified first!\r
  45 {\r
  46 public: // implements IGameAudio\r
  47         TInt16 *NextFrameL();\r
  48         TInt16 *DupeFrameL(TInt &aUnderflowed);\r
  49         TInt16 *ResumeL();\r
  50         void Pause();\r
  51         void ChangeVolume(TInt aUp);\r
  52 \r
  53 public:\r
  54         ~CGameAudioMot();\r
  55         CGameAudioMot(TInt aRate, TBool aStereo, TInt aPcmFrames, TInt aBufferedFrames);\r
  56         void ConstructL();\r
  57         EXPORT_C static CGameAudioMot* NewL(TInt aRate, TBool aStereo, TInt aPcmFrames, TInt aBufferedFrames);\r
  58 \r
  59 protected:\r
  60         void WriteBlockL();\r
  61         void UnderflowedL();\r
  62 \r
  63 protected:\r
  64         void WaitForOpenToCompleteL();\r
  65 \r
  66         TInt                                    iRate;\r
  67         TBool                                   iStereo;\r
  68 \r
  69         CMAudioFB                               *iAudioOutputStream;\r
  70         CMAudioAC                               *iAudioControl;\r
  71     TMAudioFBBufSettings        iSettings;\r
  72 \r
  73         TGameAudioEventListener iListener;\r
  74 \r
  75         CPolledActiveScheduler  *iScheduler;\r
  76 \r
  77         HBufC8*                                 iSoundBuffers[KSoundBuffers+1];\r
  78         TPtr8*                                  iSoundBufferPtrs[KSoundBuffers+1];\r
  79 \r
  80         TInt                                    iBufferedFrames;\r
  81         TInt16*                                 iCurrentPosition;\r
  82         TInt                                    iCurrentBuffer;\r
  83         TInt                                    iFrameCount;\r
  84         TInt                                    iPcmFrames;\r
  85 \r
  86         TBool                                   iDecoding;\r
  87 \r
  88         //TInt64                                        iTime; // removed because can't test\r
  89 };\r
  90 \r
  91 #endif                  /* __AUDIO_MEDIASERVER_H */\r