source: trunk/src/winmm/waveoutdaud.h

/* $Id: waveoutdaud.h,v 1.5 2002-06-04 17:36:56 sandervl Exp $ */

/*
 * Wave playback class (DirectAudio)
 *
 * Copyright 2001 Sander van Leeuwen (sandervl@xs4all.nl)
 *
 * Project Odin Software License can be found in LICENSE.TXT
 */

#ifndef __DWAVEOUTEX_H__
#define __DWAVEOUTEX_H__

#include "waveoutbase.h"
#include <daudio.h>

#ifdef _OS2WIN_H
typedef DWORD HEV;
#endif

#define SECTION_WINMM      "WINMM"
#define KEY_DIRECTAUDIO    "DirectAudio"

class DAudioWaveOut : public WaveOut
{
public:
                    DAudioWaveOut(LPWAVEFORMATEX pwfx, ULONG fdwOpen,
                                  ULONG nCallback, ULONG dwInstance);
  virtual           ~DAudioWaveOut();

  virtual MMRESULT  open();
  virtual MMRESULT  write(LPWAVEHDR pwh, UINT cbwh);
  virtual MMRESULT  pause();
  virtual MMRESULT  stop();
  virtual MMRESULT  resume();
  virtual MMRESULT  setVolume(ULONG ulVol);
  virtual MMRESULT  reset();
  virtual ULONG     getPosition();

   static BOOL      queryFormat(ULONG formatTag, ULONG nChannels,
                                ULONG nSamplesPerSec, ULONG sampleSize);
   static BOOL      isDirectAudioAvailable();

protected:

private:
          BOOL      handler();
          MMRESULT  sendIOCTL(ULONG cmd, DAUDIO_CMD *pDataPacket);

          HEV       hSem;
          HFILE     hDAudioDrv;
          HANDLE    hThread;
          DWORD     dwThreadID;
          ULONG     bytesReturned;
          BOOL      fUnderrun;

  friend  DWORD WIN32API DAudioThreadHandler(LPVOID pUserData);
};

#endif