text: /*  			DirectSound
   *
   * Copyright 1998 Marcus Meissner
   * Copyright 1998 Rob Riggs
   * Copyright 2000-2002 TransGaming Technologies, Inc.
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   *
   * TODO:
   *      When PrimarySetFormat (via ReopenDevice or PrimaryOpen) fails,
   *       it leaves dsound in unusable (not really open) state.
   */
  
  #include <stdarg.h>
  
  #define COBJMACROS
  #define NONAMELESSSTRUCT
  #define NONAMELESSUNION
  #include "windef.h"
  #include "winbase.h"
  #include "winuser.h"
  #include "mmsystem.h"
  #include "winternl.h"
  #include "mmddk.h"
  #include "wine/debug.h"
  #include "dsound.h"
  #include "dsound_private.h"
  
  WINE_DEFAULT_DEBUG_CHANNEL(dsound);
  
  static DWORD DSOUND_fraglen(DirectSoundDevice *device)
  {
      REFERENCE_TIME period;
      HRESULT hr;
      DWORD ret;
  
      hr = IAudioClient_GetDevicePeriod(device->client, &period, NULL);
      if(FAILED(hr)){
          /* just guess at 10ms */
          WARN("GetDevicePeriod failed: %08x\n", hr);
          ret = MulDiv(device->pwfx->nBlockAlign, device->pwfx->nSamplesPerSec, 100);
      }else
          ret = MulDiv(device->pwfx->nSamplesPerSec * device->pwfx->nBlockAlign, period, 10000000);
  
      ret -= ret % device->pwfx->nBlockAlign;
      return ret;
  }
  
  static HRESULT DSOUND_WaveFormat(DirectSoundDevice *device, IAudioClient *client,
  				 BOOL forcewave, WAVEFORMATEX **wfx)
  {
      WAVEFORMATEXTENSIBLE *retwfe = NULL;
      WAVEFORMATEX *w;
      HRESULT hr;
  
      if (!forcewave) {
          WAVEFORMATEXTENSIBLE *mixwfe;
          hr = IAudioClient_GetMixFormat(client, (WAVEFORMATEX**)&mixwfe);
  
          if (FAILED(hr))
              return hr;
  
          if (mixwfe->Format.nChannels > 2) {
              static int once;
              if (!once++)
                  FIXME("Limiting channels to 2 due to lack of multichannel support\n");
  
              mixwfe->Format.nChannels = 2;
              mixwfe->Format.nBlockAlign = mixwfe->Format.nChannels * mixwfe->Format.wBitsPerSample / 8;
              mixwfe->Format.nAvgBytesPerSec = mixwfe->Format.nSamplesPerSec * mixwfe->Format.nBlockAlign;
              mixwfe->dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
          }
  
          if (!IsEqualGUID(&mixwfe->SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)) {
              WAVEFORMATEXTENSIBLE testwfe = *mixwfe;
  
              testwfe.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
              testwfe.Samples.wValidBitsPerSample = testwfe.Format.wBitsPerSample = 32;
              testwfe.Format.nBlockAlign = testwfe.Format.nChannels * testwfe.Format.wBitsPerSample / 8;
              testwfe.Format.nAvgBytesPerSec = testwfe.Format.nSamplesPerSec * testwfe.Format.nBlockAlign;
  
              if (FAILED(IAudioClient_IsFormatSupported(client, AUDCLNT_SHAREMODE_SHARED, &testwfe.Format, (WAVEFORMATEX**)&retwfe)))
                  w = DSOUND_CopyFormat(&mixwfe->Format);
              else if (retwfe)
                  w = DSOUND_CopyFormat(&retwfe->Format);
              else
                  w = DSOUND_CopyFormat(&testwfe.Format);
              CoTaskMemFree(retwfe);
              retwfe = NULL;
          } else
              w = DSOUND_CopyFormat(&mixwfe->Format);
          CoTaskMemFree(mixwfe);
      } else if (device->primary_pwfx->wFormatTag == WAVE_FORMAT_PCM ||
                 device->primary_pwfx->wFormatTag == WAVE_FORMAT_IEEE_FLOAT) {
          WAVEFORMATEX *wi = device->primary_pwfx;
          WAVEFORMATEXTENSIBLE *wfe;
  
          /* Convert to WAVEFORMATEXTENSIBLE */
          w = HeapAlloc(GetProcessHeap(), 0, sizeof(WAVEFORMATEXTENSIBLE));
          wfe = (WAVEFORMATEXTENSIBLE*)w;
          if (!wfe)
              return DSERR_OUTOFMEMORY;
  
          wfe->Format = *wi;
          w->wFormatTag = WAVE_FORMAT_EXTENSIBLE;
          w->cbSize = sizeof(*wfe) - sizeof(*w);
          w->nBlockAlign = w->nChannels * w->wBitsPerSample / 8;
          w->nAvgBytesPerSec = w->nSamplesPerSec * w->nBlockAlign;
  
          wfe->dwChannelMask = 0;
          if (wi->wFormatTag == WAVE_FORMAT_IEEE_FLOAT) {
              w->wBitsPerSample = 32;
              wfe->SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
          } else
              wfe->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
          wfe->Samples.wValidBitsPerSample = w->wBitsPerSample;
      } else
          w = DSOUND_CopyFormat(device->primary_pwfx);
  
      if (!w)
          return DSERR_OUTOFMEMORY;
  
      hr = IAudioClient_IsFormatSupported(client, AUDCLNT_SHAREMODE_SHARED, w, (WAVEFORMATEX**)&retwfe);
      if (retwfe) {
          memcpy(w, retwfe, sizeof(WAVEFORMATEX) + retwfe->Format.cbSize);
          CoTaskMemFree(retwfe);
      }
      if (FAILED(hr)) {
          WARN("IsFormatSupported failed: %08x\n", hr);
          HeapFree(GetProcessHeap(), 0, w);
          return hr;
      }
      *wfx = w;
      return S_OK;
  }
  
  HRESULT DSOUND_ReopenDevice(DirectSoundDevice *device, BOOL forcewave)
  {
      UINT prebuf_frames;
      REFERENCE_TIME prebuf_rt;
      WAVEFORMATEX *wfx = NULL;
      HRESULT hres;
      REFERENCE_TIME period;
      DWORD period_ms;
  
      TRACE("(%p, %d)\n", device, forcewave);
  
      if(device->client){
          IAudioClient_Release(device->client);
          device->client = NULL;
      }
      if(device->render){
          IAudioRenderClient_Release(device->render);
          device->render = NULL;
      }
      if(device->clock){
          IAudioClock_Release(device->clock);
          device->clock = NULL;
      }
      if(device->volume){
          IAudioStreamVolume_Release(device->volume);
          device->volume = NULL;
      }
  
      hres = IMMDevice_Activate(device->mmdevice, &IID_IAudioClient,
              CLSCTX_INPROC_SERVER, NULL, (void **)&device->client);
      if(FAILED(hres)) {
          WARN("Activate failed: %08x\n", hres);
          return hres;
      }
  
      hres = DSOUND_WaveFormat(device, device->client, forcewave, &wfx);
      if (FAILED(hres)) {
          IAudioClient_Release(device->client);
          device->client = NULL;
          return hres;
      }
      HeapFree(GetProcessHeap(), 0, device->pwfx);
      device->pwfx = wfx;
  
      prebuf_frames = device->prebuf * DSOUND_fraglen(device) / device->pwfx->nBlockAlign;
      prebuf_rt = (10000000 * (UINT64)prebuf_frames) / device->pwfx->nSamplesPerSec;
  
      hres = IAudioClient_Initialize(device->client,
              AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_NOPERSIST |
              AUDCLNT_STREAMFLAGS_EVENTCALLBACK, prebuf_rt, 0, device->pwfx, NULL);
      if(FAILED(hres)){
          IAudioClient_Release(device->client);
          device->client = NULL;
          WARN("Initialize failed: %08x\n", hres);
          return hres;
      }
      IAudioClient_SetEventHandle(device->client, device->sleepev);
  
      hres = IAudioClient_GetService(device->client, &IID_IAudioRenderClient,
              (void**)&device->render);
      if(FAILED(hres)){
          IAudioClient_Release(device->client);
          device->client = NULL;
          WARN("GetService failed: %08x\n", hres);
          return hres;
      }
  
      hres = IAudioClient_GetService(device->client, &IID_IAudioClock,
              (void**)&device->clock);
      if(FAILED(hres)){
          IAudioClient_Release(device->client);
          IAudioRenderClient_Release(device->render);
          device->client = NULL;
          device->render = NULL;
          WARN("GetService failed: %08x\n", hres);
          return hres;
      }
  
      hres = IAudioClient_GetService(device->client, &IID_IAudioStreamVolume,
              (void**)&device->volume);
      if(FAILED(hres)){
          IAudioClient_Release(device->client);
          IAudioRenderClient_Release(device->render);
          IAudioClock_Release(device->clock);
          device->client = NULL;
          device->render = NULL;
          device->clock = NULL;
          WARN("GetService failed: %08x\n", hres);
          return hres;
      }
  
      /* Now kick off the timer so the event fires periodically */
      hres = IAudioClient_Start(device->client);
      if (FAILED(hres))
          WARN("starting failed with %08x\n", hres);
  
      hres = IAudioClient_GetStreamLatency(device->client, &period);
      if (FAILED(hres)) {
          WARN("GetStreamLatency failed with %08x\n", hres);
          period_ms = 10;
      } else
          period_ms = (period + 9999) / 10000;
      TRACE("period %u ms fraglen %u prebuf %u\n", period_ms, device->fraglen, device->prebuf);
  
      if (period_ms < 3)
          device->sleeptime = 5;
      else
          device->sleeptime = period_ms * 5 / 2;
  
      return S_OK;
  }
  
  HRESULT DSOUND_PrimaryOpen(DirectSoundDevice *device)
  {
  	IDirectSoundBufferImpl** dsb = device->buffers;
  	LPBYTE newbuf;
          int i;
  
  	TRACE("(%p)\n", device);
  
  	device->fraglen = DSOUND_fraglen(device);
  
  	/* on original windows, the buffer it set to a fixed size, no matter what the settings are.
  	   on windows this size is always fixed (tested on win-xp) */
  	if (!device->buflen)
  		device->buflen = ds_hel_buflen;
  	device->buflen -= device->buflen % device->pwfx->nBlockAlign;
  	while(device->buflen < device->fraglen * device->prebuf){
  		device->buflen += ds_hel_buflen;
  		device->buflen -= device->buflen % device->pwfx->nBlockAlign;
  	}
  
  	HeapFree(GetProcessHeap(), 0, device->mix_buffer);
  	device->mix_buffer_len = (device->buflen / (device->pwfx->wBitsPerSample / 8)) * sizeof(float);
  	device->mix_buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, device->mix_buffer_len);
  	if (!device->mix_buffer)
  		return DSERR_OUTOFMEMORY;
  
  	if (device->state == STATE_PLAYING) device->state = STATE_STARTING;
  	else if (device->state == STATE_STOPPING) device->state = STATE_STOPPED;
  
      /* reallocate emulated primary buffer */
      if (device->buffer)
          newbuf = HeapReAlloc(GetProcessHeap(),0,device->buffer, device->buflen);
      else
          newbuf = HeapAlloc(GetProcessHeap(),0, device->buflen);
  
      if (!newbuf) {
          ERR("failed to allocate primary buffer\n");
          return DSERR_OUTOFMEMORY;
          /* but the old buffer might still exist and must be re-prepared */
      }
  
      device->writelead = (device->pwfx->nSamplesPerSec / 100) * device->pwfx->nBlockAlign;
  
      device->buffer = newbuf;
  
      TRACE("buflen: %u, fraglen: %u, mix_buffer_len: %u\n",
              device->buflen, device->fraglen, device->mix_buffer_len);
  
      if(device->pwfx->wFormatTag == WAVE_FORMAT_IEEE_FLOAT ||
              (device->pwfx->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
               IsEqualGUID(&((WAVEFORMATEXTENSIBLE*)device->pwfx)->SubFormat,
                   &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)))
          device->normfunction = normfunctions[4];
      else
          device->normfunction = normfunctions[device->pwfx->wBitsPerSample/8 - 1];
  
      FillMemory(device->buffer, device->buflen, (device->pwfx->wBitsPerSample == 8) ? 128 : 0);
      FillMemory(device->mix_buffer, device->mix_buffer_len, 0);
      device->playpos = 0;
  
      if (device->pwfx->wFormatTag == WAVE_FORMAT_IEEE_FLOAT ||
  	 (device->pwfx->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
  	  IsEqualGUID(&((WAVEFORMATEXTENSIBLE*)device->pwfx)->SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)))
          device->normfunction = normfunctions[4];
      else
          device->normfunction = normfunctions[device->pwfx->wBitsPerSample/8 - 1];
  
      for (i = 0; i < device->nrofbuffers; i++) {
          RtlAcquireResourceExclusive(&dsb[i]->lock, TRUE);
          DSOUND_RecalcFormat(dsb[i]);
          RtlReleaseResource(&dsb[i]->lock);
      }
  
      return DS_OK;
  }
  
  
  static void DSOUND_PrimaryClose(DirectSoundDevice *device)
  {
      HRESULT hr;
  
      TRACE("(%p)\n", device);
  
      if(device->client){
          hr = IAudioClient_Stop(device->client);
          if(FAILED(hr))
              WARN("Stop failed: %08x\n", hr);
      }
  
      /* clear the queue */
      device->in_mmdev_bytes = 0;
  }
  
  HRESULT DSOUND_PrimaryCreate(DirectSoundDevice *device)
  {
  	HRESULT err = DS_OK;
  	TRACE("(%p)\n", device);
  
  	device->buflen = ds_hel_buflen;
  	err = DSOUND_PrimaryOpen(device);
  
  	if (err != DS_OK) {
  		WARN("DSOUND_PrimaryOpen failed\n");
  		return err;
  	}
  
  	device->state = STATE_STOPPED;
  	return DS_OK;
  }
  
  HRESULT DSOUND_PrimaryDestroy(DirectSoundDevice *device)
  {
  	TRACE("(%p)\n", device);
  
  	/* **** */
  	EnterCriticalSection(&(device->mixlock));
  
  	DSOUND_PrimaryClose(device);
  
  	if(device->primary && (device->primary->ref || device->primary->numIfaces))
  		WARN("Destroying primary buffer while references held (%u %u)\n", device->primary->ref, device->primary->numIfaces);
  
  	HeapFree(GetProcessHeap(), 0, device->primary);
  	device->primary = NULL;
  
  	HeapFree(GetProcessHeap(),0,device->primary_pwfx);
  	HeapFree(GetProcessHeap(),0,device->pwfx);
  	device->pwfx=NULL;
  
  	LeaveCriticalSection(&(device->mixlock));
  	/* **** */
  
  	return DS_OK;
  }
  
  HRESULT DSOUND_PrimaryPlay(DirectSoundDevice *device)
  {
      HRESULT hr;
  
      TRACE("(%p)\n", device);
  
      hr = IAudioClient_Start(device->client);
      if(FAILED(hr) && hr != AUDCLNT_E_NOT_STOPPED){
          WARN("Start failed: %08x\n", hr);
          return hr;
      }
  
      return DS_OK;
  }
  
  HRESULT DSOUND_PrimaryStop(DirectSoundDevice *device)
  {
      HRESULT hr;
  
      TRACE("(%p)\n", device);
  
      hr = IAudioClient_Stop(device->client);
      if(FAILED(hr)){
          WARN("Stop failed: %08x\n", hr);
          return hr;
      }
  
      return DS_OK;
  }
  
  HRESULT DSOUND_PrimaryGetPosition(DirectSoundDevice *device, LPDWORD playpos, LPDWORD writepos)
  {
  	TRACE("(%p,%p,%p)\n", device, playpos, writepos);
  
  	/* check if playpos was requested */
  	if (playpos)
  		*playpos = device->playing_offs_bytes;
  
  	/* check if writepos was requested */
  	if (writepos)
  		/* the writepos is the first non-queued position */
  		*writepos = (device->playing_offs_bytes + device->in_mmdev_bytes) % device->buflen;
  
  	TRACE("playpos = %d, writepos = %d (%p, time=%d)\n", playpos?*playpos:-1, writepos?*writepos:-1, device, GetTickCount());
  	return DS_OK;
  }
  
  WAVEFORMATEX *DSOUND_CopyFormat(const WAVEFORMATEX *wfex)
  {
      WAVEFORMATEX *pwfx;
      if(wfex->wFormatTag == WAVE_FORMAT_PCM){
          pwfx = HeapAlloc(GetProcessHeap(), 0, sizeof(WAVEFORMATEX));
          CopyMemory(pwfx, wfex, sizeof(PCMWAVEFORMAT));
          pwfx->cbSize = 0;
      }else{
          pwfx = HeapAlloc(GetProcessHeap(), 0, sizeof(WAVEFORMATEX) + wfex->cbSize);
          CopyMemory(pwfx, wfex, sizeof(WAVEFORMATEX) + wfex->cbSize);
      }
  
      if(pwfx->wFormatTag == WAVE_FORMAT_PCM ||
              (pwfx->wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
               IsEqualGUID(&((const WAVEFORMATEXTENSIBLE*)pwfx)->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM)))
          pwfx->nBlockAlign = (pwfx->nChannels * pwfx->wBitsPerSample) / 8;
  
      return pwfx;
  }
  
  HRESULT primarybuffer_SetFormat(DirectSoundDevice *device, LPCWAVEFORMATEX passed_fmt)
  {
  	HRESULT err = S_OK;
  	WAVEFORMATEX *old_fmt;
  	WAVEFORMATEXTENSIBLE *fmtex, *passed_fmtex = (WAVEFORMATEXTENSIBLE*)passed_fmt;
  	BOOL forced = (device->priolevel == DSSCL_WRITEPRIMARY);
  
  	TRACE("(%p,%p)\n", device, passed_fmt);
  
  	if (device->priolevel == DSSCL_NORMAL) {
  		WARN("failed priority check!\n");
  		return DSERR_PRIOLEVELNEEDED;
  	}
  
  	/* Let's be pedantic! */
  	if (passed_fmt == NULL) {
  		WARN("invalid parameter: passed_fmt==NULL!\n");
  		return DSERR_INVALIDPARAM;
  	}
  	TRACE("(formattag=0x%04x,chans=%d,samplerate=%d,"
  			  "bytespersec=%d,blockalign=%d,bitspersamp=%d,cbSize=%d)\n",
  		  passed_fmt->wFormatTag, passed_fmt->nChannels, passed_fmt->nSamplesPerSec,
  		  passed_fmt->nAvgBytesPerSec, passed_fmt->nBlockAlign,
  		  passed_fmt->wBitsPerSample, passed_fmt->cbSize);
  
  	if(passed_fmt->wBitsPerSample < 8 || passed_fmt->wBitsPerSample % 8 != 0 ||
  			passed_fmt->nChannels == 0 || passed_fmt->nSamplesPerSec == 0 ||
  			passed_fmt->nAvgBytesPerSec == 0 ||
  			passed_fmt->nBlockAlign != passed_fmt->nChannels * passed_fmt->wBitsPerSample / 8)
  		return DSERR_INVALIDPARAM;
  
  	if(passed_fmt->wFormatTag == WAVE_FORMAT_EXTENSIBLE){
  		if(passed_fmtex->Samples.wValidBitsPerSample > passed_fmtex->Format.wBitsPerSample)
  			return DSERR_INVALIDPARAM;
  	}
  
  	/* **** */
  	RtlAcquireResourceExclusive(&(device->buffer_list_lock), TRUE);
  	EnterCriticalSection(&(device->mixlock));
  
  	if (device->priolevel == DSSCL_WRITEPRIMARY) {
  		old_fmt = device->primary_pwfx;
  		device->primary_pwfx = DSOUND_CopyFormat(passed_fmt);
  		fmtex = (WAVEFORMATEXTENSIBLE *)device->primary_pwfx;
  		if (device->primary_pwfx == NULL) {
  			err = DSERR_OUTOFMEMORY;
  			goto out;
  		}
  
  		if (fmtex->Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
  		    fmtex->Samples.wValidBitsPerSample == 0) {
  			TRACE("Correcting 0 valid bits per sample\n");
  			fmtex->Samples.wValidBitsPerSample = fmtex->Format.wBitsPerSample;
  		}
  
  		DSOUND_PrimaryClose(device);
  
  		err = DSOUND_ReopenDevice(device, forced);
  		if (FAILED(err)) {
  			ERR("No formats could be opened\n");
  			goto done;
  		}
  
  		err = DSOUND_PrimaryOpen(device);
  		if (err != DS_OK) {
  			ERR("DSOUND_PrimaryOpen failed\n");
  			goto done;
  		}
  
  done:
  		if (err != DS_OK)
  			device->primary_pwfx = old_fmt;
  		else
  			HeapFree(GetProcessHeap(), 0, old_fmt);
  	} else {
  		HeapFree(GetProcessHeap(), 0, device->primary_pwfx);
  		device->primary_pwfx = DSOUND_CopyFormat(passed_fmt);
  	}
  
  out:
  	LeaveCriticalSection(&(device->mixlock));
  	RtlReleaseResource(&(device->buffer_list_lock));
  	/* **** */
  
  	return err;
  }
  
  /*******************************************************************************
   *		PrimaryBuffer
   */
  static inline IDirectSoundBufferImpl *impl_from_IDirectSoundBuffer(IDirectSoundBuffer *iface)
  {
      /* IDirectSoundBuffer and IDirectSoundBuffer8 use the same iface. */
      return CONTAINING_RECORD(iface, IDirectSoundBufferImpl, IDirectSoundBuffer8_iface);
  }
  
  /* This sets this format for the primary buffer only */
  static HRESULT WINAPI PrimaryBufferImpl_SetFormat(IDirectSoundBuffer *iface,
          const WAVEFORMATEX *wfex)
  {
      IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
      TRACE("(%p,%p)\n", iface, wfex);
      return primarybuffer_SetFormat(This->device, wfex);
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_SetVolume(IDirectSoundBuffer *iface, LONG vol)
  {
  	IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
  	DirectSoundDevice *device = This->device;
  	HRESULT hr;
  	float lvol, rvol;
  
  	TRACE("(%p,%d)\n", iface, vol);
  
  	if (!(This->dsbd.dwFlags & DSBCAPS_CTRLVOLUME)) {
  		WARN("control unavailable\n");
  		return DSERR_CONTROLUNAVAIL;
  	}
  
  	if ((vol > DSBVOLUME_MAX) || (vol < DSBVOLUME_MIN)) {
  		WARN("invalid parameter: vol = %d\n", vol);
  		return DSERR_INVALIDPARAM;
  	}
  
  	/* **** */
  	EnterCriticalSection(&device->mixlock);
  
  	hr = IAudioStreamVolume_GetChannelVolume(device->volume, 0, &lvol);
  	if(FAILED(hr)){
  		LeaveCriticalSection(&device->mixlock);
  		WARN("GetChannelVolume failed: %08x\n", hr);
  		return hr;
  	}
  
  	if(device->pwfx->nChannels > 1){
  		hr = IAudioStreamVolume_GetChannelVolume(device->volume, 1, &rvol);
  		if(FAILED(hr)){
  			LeaveCriticalSection(&device->mixlock);
  			WARN("GetChannelVolume failed: %08x\n", hr);
  			return hr;
  		}
  	}else
  		rvol = 1;
  
  	device->volpan.dwTotalLeftAmpFactor = ((UINT16)(lvol * (DWORD)0xFFFF));
  	device->volpan.dwTotalRightAmpFactor = ((UINT16)(rvol * (DWORD)0xFFFF));
  
  	DSOUND_AmpFactorToVolPan(&device->volpan);
  	if (vol != device->volpan.lVolume) {
  		device->volpan.lVolume=vol;
  		DSOUND_RecalcVolPan(&device->volpan);
  		lvol = (float)((DWORD)(device->volpan.dwTotalLeftAmpFactor & 0xFFFF) / (float)0xFFFF);
  		hr = IAudioStreamVolume_SetChannelVolume(device->volume, 0, lvol);
  		if(FAILED(hr)){
  			LeaveCriticalSection(&device->mixlock);
  			WARN("SetChannelVolume failed: %08x\n", hr);
  			return hr;
  		}
  
  		if(device->pwfx->nChannels > 1){
  			rvol = (float)((DWORD)(device->volpan.dwTotalRightAmpFactor & 0xFFFF) / (float)0xFFFF);
  			hr = IAudioStreamVolume_SetChannelVolume(device->volume, 1, rvol);
  			if(FAILED(hr)){
  				LeaveCriticalSection(&device->mixlock);
  				WARN("SetChannelVolume failed: %08x\n", hr);
  				return hr;
  			}
  		}
  	}
  
  	LeaveCriticalSection(&(device->mixlock));
  	/* **** */
  
  	return DS_OK;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_GetVolume(IDirectSoundBuffer *iface, LONG *vol)
  {
  	IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
  	DirectSoundDevice *device = This->device;
  	float lvol, rvol;
  	HRESULT hr;
  	TRACE("(%p,%p)\n", iface, vol);
  
  	if (!(This->dsbd.dwFlags & DSBCAPS_CTRLVOLUME)) {
  		WARN("control unavailable\n");
  		return DSERR_CONTROLUNAVAIL;
  	}
  
  	if (vol == NULL) {
  		WARN("invalid parameter: vol = NULL\n");
  		return DSERR_INVALIDPARAM;
  	}
  
  	EnterCriticalSection(&device->mixlock);
  
  	hr = IAudioStreamVolume_GetChannelVolume(device->volume, 0, &lvol);
  	if(FAILED(hr)){
  		LeaveCriticalSection(&device->mixlock);
  		WARN("GetChannelVolume failed: %08x\n", hr);
  		return hr;
  	}
  
  	if(device->pwfx->nChannels > 1){
  		hr = IAudioStreamVolume_GetChannelVolume(device->volume, 1, &rvol);
  		if(FAILED(hr)){
  			LeaveCriticalSection(&device->mixlock);
  			WARN("GetChannelVolume failed: %08x\n", hr);
  			return hr;
  		}
  	}else
  		rvol = 1;
  
  	device->volpan.dwTotalLeftAmpFactor = ((UINT16)(lvol * (DWORD)0xFFFF));
  	device->volpan.dwTotalRightAmpFactor = ((UINT16)(rvol * (DWORD)0xFFFF));
  
  	DSOUND_AmpFactorToVolPan(&device->volpan);
  	*vol = device->volpan.lVolume;
  
  	LeaveCriticalSection(&device->mixlock);
  
  	return DS_OK;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_SetFrequency(IDirectSoundBuffer *iface, DWORD freq)
  {
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
  	TRACE("(%p,%d)\n",This,freq);
  
  	/* You cannot set the frequency of the primary buffer */
  	WARN("control unavailable\n");
  	return DSERR_CONTROLUNAVAIL;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_Play(IDirectSoundBuffer *iface, DWORD reserved1,
          DWORD reserved2, DWORD flags)
  {
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
          DirectSoundDevice *device = This->device;
  	TRACE("(%p,%08x,%08x,%08x)\n", iface, reserved1, reserved2, flags);
  
  	if (!(flags & DSBPLAY_LOOPING)) {
  		WARN("invalid parameter: flags = %08x\n", flags);
  		return DSERR_INVALIDPARAM;
  	}
  
  	/* **** */
  	EnterCriticalSection(&(device->mixlock));
  
  	if (device->state == STATE_STOPPED)
  		device->state = STATE_STARTING;
  	else if (device->state == STATE_STOPPING)
  		device->state = STATE_PLAYING;
  
  	LeaveCriticalSection(&(device->mixlock));
  	/* **** */
  
  	return DS_OK;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_Stop(IDirectSoundBuffer *iface)
  {
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
          DirectSoundDevice *device = This->device;
  	TRACE("(%p)\n", iface);
  
  	/* **** */
  	EnterCriticalSection(&(device->mixlock));
  
  	if (device->state == STATE_PLAYING)
  		device->state = STATE_STOPPING;
  	else if (device->state == STATE_STARTING)
  		device->state = STATE_STOPPED;
  
  	LeaveCriticalSection(&(device->mixlock));
  	/* **** */
  
  	return DS_OK;
  }
  
  static ULONG WINAPI PrimaryBufferImpl_AddRef(IDirectSoundBuffer *iface)
  {
      IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
      ULONG ref = InterlockedIncrement(&(This->ref));
      TRACE("(%p) ref was %d\n", This, ref - 1);
      if(ref == 1)
          InterlockedIncrement(&This->numIfaces);
      return ref;
  }
  
  /* Decreases *out by 1 to no less than 0.
   * Returns the new value of *out. */
  LONG capped_refcount_dec(LONG *out)
  {
      LONG ref, oldref;
      do {
          ref = *out;
          if(!ref)
              return 0;
          oldref = InterlockedCompareExchange(out, ref - 1, ref);
      } while(oldref != ref);
      return ref - 1;
  }
  
  static ULONG WINAPI PrimaryBufferImpl_Release(IDirectSoundBuffer *iface)
  {
      IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
      ULONG ref;
  
      ref = capped_refcount_dec(&This->ref);
      if(!ref)
          capped_refcount_dec(&This->numIfaces);
  
      TRACE("(%p) primary ref is now %d\n", This, ref);
  
      return ref;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_GetCurrentPosition(IDirectSoundBuffer *iface,
          DWORD *playpos, DWORD *writepos)
  {
  	HRESULT	hres;
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
          DirectSoundDevice *device = This->device;
  	TRACE("(%p,%p,%p)\n", iface, playpos, writepos);
  
  	/* **** */
  	EnterCriticalSection(&(device->mixlock));
  
  	hres = DSOUND_PrimaryGetPosition(device, playpos, writepos);
  	if (hres != DS_OK) {
  		WARN("DSOUND_PrimaryGetPosition failed\n");
  		LeaveCriticalSection(&(device->mixlock));
  		return hres;
  	}
  	if (writepos) {
  		if (device->state != STATE_STOPPED)
  			/* apply the documented 10ms lead to writepos */
  			*writepos += device->writelead;
  		while (*writepos >= device->buflen) *writepos -= device->buflen;
  	}
  
  	LeaveCriticalSection(&(device->mixlock));
  	/* **** */
  
  	TRACE("playpos = %d, writepos = %d (%p, time=%d)\n", playpos?*playpos:0, writepos?*writepos:0, device, GetTickCount());
  	return DS_OK;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_GetStatus(IDirectSoundBuffer *iface, DWORD *status)
  {
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
          DirectSoundDevice *device = This->device;
  	TRACE("(%p,%p)\n", iface, status);
  
  	if (status == NULL) {
  		WARN("invalid parameter: status == NULL\n");
  		return DSERR_INVALIDPARAM;
  	}
  
  	*status = 0;
  	if ((device->state == STATE_STARTING) ||
  	    (device->state == STATE_PLAYING))
  		*status |= DSBSTATUS_PLAYING | DSBSTATUS_LOOPING;
  
  	TRACE("status=%x\n", *status);
  	return DS_OK;
  }
  
  
  static HRESULT WINAPI PrimaryBufferImpl_GetFormat(IDirectSoundBuffer *iface, WAVEFORMATEX *lpwf,
          DWORD wfsize, DWORD *wfwritten)
  {
      DWORD size;
      IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
      DirectSoundDevice *device = This->device;
      TRACE("(%p,%p,%d,%p)\n", iface, lpwf, wfsize, wfwritten);
  
      size = sizeof(WAVEFORMATEX) + device->primary_pwfx->cbSize;
  
      if (lpwf) {	/* NULL is valid */
          if (wfsize >= size) {
              CopyMemory(lpwf,device->primary_pwfx,size);
              if (wfwritten)
                  *wfwritten = size;
          } else {
              WARN("invalid parameter: wfsize too small\n");
              if (wfwritten)
                  *wfwritten = 0;
              return DSERR_INVALIDPARAM;
          }
      } else {
          if (wfwritten)
              *wfwritten = sizeof(WAVEFORMATEX) + device->primary_pwfx->cbSize;
          else {
              WARN("invalid parameter: wfwritten == NULL\n");
              return DSERR_INVALIDPARAM;
          }
      }
  
      return DS_OK;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_Lock(IDirectSoundBuffer *iface, DWORD writecursor,
          DWORD writebytes, void **lplpaudioptr1, DWORD *audiobytes1, void **lplpaudioptr2,
          DWORD *audiobytes2, DWORD flags)
  {
  	HRESULT hres;
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
          DirectSoundDevice *device = This->device;
  	TRACE("(%p,%d,%d,%p,%p,%p,%p,0x%08x) at %d\n",
  		iface,
  		writecursor,
  		writebytes,
  		lplpaudioptr1,
  		audiobytes1,
  		lplpaudioptr2,
  		audiobytes2,
  		flags,
  		GetTickCount()
  	);
  
          if (!audiobytes1)
              return DSERR_INVALIDPARAM;
  
  	if (device->priolevel != DSSCL_WRITEPRIMARY) {
  		WARN("failed priority check!\n");
  		return DSERR_PRIOLEVELNEEDED;
  	}
  
          /* when this flag is set, writecursor is meaningless and must be calculated */
  	if (flags & DSBLOCK_FROMWRITECURSOR) {
  		/* GetCurrentPosition does too much magic to duplicate here */
  		hres = IDirectSoundBuffer_GetCurrentPosition(iface, NULL, &writecursor);
  		if (hres != DS_OK) {
  			WARN("IDirectSoundBuffer_GetCurrentPosition failed\n");
  			return hres;
  		}
  	}
  
          /* when this flag is set, writebytes is meaningless and must be set */
  	if (flags & DSBLOCK_ENTIREBUFFER)
  		writebytes = device->buflen;
  
          if (writecursor >= device->buflen) {
                  WARN("Invalid parameter, writecursor: %u >= buflen: %u\n",
  		     writecursor, device->buflen);
                  return DSERR_INVALIDPARAM;
          }
  
          if (writebytes > device->buflen) {
                  WARN("Invalid parameter, writebytes: %u > buflen: %u\n",
  		     writebytes, device->buflen);
                  return DSERR_INVALIDPARAM;
          }
  
  	if (writecursor+writebytes <= device->buflen) {
  		*(LPBYTE*)lplpaudioptr1 = device->buffer+writecursor;
  		*audiobytes1 = writebytes;
  		if (lplpaudioptr2)
  			*(LPBYTE*)lplpaudioptr2 = NULL;
  		if (audiobytes2)
  			*audiobytes2 = 0;
  		TRACE("->%d.0\n",writebytes);
  	} else {
  		*(LPBYTE*)lplpaudioptr1 = device->buffer+writecursor;
  		*audiobytes1 = device->buflen-writecursor;
  		if (lplpaudioptr2)
  			*(LPBYTE*)lplpaudioptr2 = device->buffer;
  		if (audiobytes2)
  			*audiobytes2 = writebytes-(device->buflen-writecursor);
  		TRACE("->%d.%d\n",*audiobytes1,audiobytes2?*audiobytes2:0);
  	}
  	return DS_OK;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_SetCurrentPosition(IDirectSoundBuffer *iface, DWORD newpos)
  {
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
  	TRACE("(%p,%d)\n",This,newpos);
  
  	/* You cannot set the position of the primary buffer */
  	WARN("invalid call\n");
  	return DSERR_INVALIDCALL;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_SetPan(IDirectSoundBuffer *iface, LONG pan)
  {
  	IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
  	DirectSoundDevice *device = This->device;
  	float lvol, rvol;
  	HRESULT hr;
  	TRACE("(%p,%d)\n", iface, pan);
  
  	if (!(This->dsbd.dwFlags & DSBCAPS_CTRLPAN)) {
  		WARN("control unavailable\n");
  		return DSERR_CONTROLUNAVAIL;
  	}
  
  	if ((pan > DSBPAN_RIGHT) || (pan < DSBPAN_LEFT)) {
  		WARN("invalid parameter: pan = %d\n", pan);
  		return DSERR_INVALIDPARAM;
  	}
  
  	/* **** */
  	EnterCriticalSection(&device->mixlock);
  
  	hr = IAudioStreamVolume_GetChannelVolume(device->volume, 0, &lvol);
  	if(FAILED(hr)){
  		LeaveCriticalSection(&device->mixlock);
  		WARN("GetChannelVolume failed: %08x\n", hr);
  		return hr;
  	}
  
  	if(device->pwfx->nChannels > 1){
  		hr = IAudioStreamVolume_GetChannelVolume(device->volume, 1, &rvol);
  		if(FAILED(hr)){
  			LeaveCriticalSection(&device->mixlock);
  			WARN("GetChannelVolume failed: %08x\n", hr);
  			return hr;
  		}
  	}else
  		rvol = 1;
  
  	device->volpan.dwTotalLeftAmpFactor = ((UINT16)(lvol * (DWORD)0xFFFF));
  	device->volpan.dwTotalRightAmpFactor = ((UINT16)(rvol * (DWORD)0xFFFF));
  
  	DSOUND_AmpFactorToVolPan(&device->volpan);
  	if (pan != device->volpan.lPan) {
  		device->volpan.lPan=pan;
  		DSOUND_RecalcVolPan(&device->volpan);
  
  		lvol = (float)((DWORD)(device->volpan.dwTotalLeftAmpFactor & 0xFFFF) / (float)0xFFFF);
  		hr = IAudioStreamVolume_SetChannelVolume(device->volume, 0, lvol);
  		if(FAILED(hr)){
  			LeaveCriticalSection(&device->mixlock);
  			WARN("SetChannelVolume failed: %08x\n", hr);
  			return hr;
  		}
  
  		if(device->pwfx->nChannels > 1){
  			rvol = (float)((DWORD)(device->volpan.dwTotalRightAmpFactor & 0xFFFF) / (float)0xFFFF);
  			hr = IAudioStreamVolume_SetChannelVolume(device->volume, 1, rvol);
  			if(FAILED(hr)){
  				LeaveCriticalSection(&device->mixlock);
  				WARN("SetChannelVolume failed: %08x\n", hr);
  				return hr;
  			}
  		}
  	}
  
  	LeaveCriticalSection(&device->mixlock);
  	/* **** */
  
  	return DS_OK;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_GetPan(IDirectSoundBuffer *iface, LONG *pan)
  {
  	IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
  	DirectSoundDevice *device = This->device;
  	float lvol, rvol;
  	HRESULT hr;
  	TRACE("(%p,%p)\n", iface, pan);
  
  	if (!(This->dsbd.dwFlags & DSBCAPS_CTRLPAN)) {
  		WARN("control unavailable\n");
  		return DSERR_CONTROLUNAVAIL;
  	}
  
  	if (pan == NULL) {
  		WARN("invalid parameter: pan == NULL\n");
  		return DSERR_INVALIDPARAM;
  	}
  
  	EnterCriticalSection(&device->mixlock);
  
  	hr = IAudioStreamVolume_GetChannelVolume(device->volume, 0, &lvol);
  	if(FAILED(hr)){
  		LeaveCriticalSection(&device->mixlock);
  		WARN("GetChannelVolume failed: %08x\n", hr);
  		return hr;
  	}
  
  	if(device->pwfx->nChannels > 1){
  		hr = IAudioStreamVolume_GetChannelVolume(device->volume, 1, &rvol);
  		if(FAILED(hr)){
  			LeaveCriticalSection(&device->mixlock);
  			WARN("GetChannelVolume failed: %08x\n", hr);
  			return hr;
  		}
  	}else
  		rvol = 1;
  
  	device->volpan.dwTotalLeftAmpFactor = ((UINT16)(lvol * (DWORD)0xFFFF));
  	device->volpan.dwTotalRightAmpFactor = ((UINT16)(rvol * (DWORD)0xFFFF));
  
  	DSOUND_AmpFactorToVolPan(&device->volpan);
  	*pan = device->volpan.lPan;
  
  	LeaveCriticalSection(&device->mixlock);
  
  	return DS_OK;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_Unlock(IDirectSoundBuffer *iface, void *p1, DWORD x1,
          void *p2, DWORD x2)
  {
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
          DirectSoundDevice *device = This->device;
  	TRACE("(%p,%p,%d,%p,%d)\n", iface, p1, x1, p2, x2);
  
  	if (device->priolevel != DSSCL_WRITEPRIMARY) {
  		WARN("failed priority check!\n");
  		return DSERR_PRIOLEVELNEEDED;
  	}
  
  	if ((p1 && ((BYTE*)p1 < device->buffer || (BYTE*)p1 >= device->buffer + device->buflen)) ||
  	    (p2 && ((BYTE*)p2 < device->buffer || (BYTE*)p2 >= device->buffer + device->buflen)))
  		return DSERR_INVALIDPARAM;
  
  	return DS_OK;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_Restore(IDirectSoundBuffer *iface)
  {
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
  	FIXME("(%p):stub\n",This);
  	return DS_OK;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_GetFrequency(IDirectSoundBuffer *iface, DWORD *freq)
  {
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
          DirectSoundDevice *device = This->device;
  	TRACE("(%p,%p)\n", iface, freq);
  
  	if (freq == NULL) {
  		WARN("invalid parameter: freq == NULL\n");
  		return DSERR_INVALIDPARAM;
  	}
  
  	if (!(This->dsbd.dwFlags & DSBCAPS_CTRLFREQUENCY)) {
  		WARN("control unavailable\n");
  		return DSERR_CONTROLUNAVAIL;
  	}
  
  	*freq = device->pwfx->nSamplesPerSec;
  	TRACE("-> %d\n", *freq);
  
  	return DS_OK;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_Initialize(IDirectSoundBuffer *iface, IDirectSound *dsound,
          const DSBUFFERDESC *dbsd)
  {
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
  	WARN("(%p) already initialized\n", This);
  	return DSERR_ALREADYINITIALIZED;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_GetCaps(IDirectSoundBuffer *iface, DSBCAPS *caps)
  {
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
          DirectSoundDevice *device = This->device;
    	TRACE("(%p,%p)\n", iface, caps);
  
  	if (caps == NULL) {
  		WARN("invalid parameter: caps == NULL\n");
  		return DSERR_INVALIDPARAM;
  	}
  
  	if (caps->dwSize < sizeof(*caps)) {
  		WARN("invalid parameter: caps->dwSize = %d\n", caps->dwSize);
  		return DSERR_INVALIDPARAM;
  	}
  
  	caps->dwFlags = This->dsbd.dwFlags;
  	caps->dwBufferBytes = device->buflen;
  
  	/* Windows reports these as zero */
  	caps->dwUnlockTransferRate = 0;
  	caps->dwPlayCpuOverhead = 0;
  
  	return DS_OK;
  }
  
  static HRESULT WINAPI PrimaryBufferImpl_QueryInterface(IDirectSoundBuffer *iface, REFIID riid,
          void **ppobj)
  {
          IDirectSoundBufferImpl *This = impl_from_IDirectSoundBuffer(iface);
  
  	TRACE("(%p,%s,%p)\n", iface, debugstr_guid(riid), ppobj);
  
  	if (ppobj == NULL) {
  		WARN("invalid parameter\n");
  		return E_INVALIDARG;
  	}
  
  	*ppobj = NULL;	/* assume failure */
  
  	if ( IsEqualGUID(riid, &IID_IUnknown) ||
  	     IsEqualGUID(riid, &IID_IDirectSoundBuffer) ) {
  		IDirectSoundBuffer_AddRef(iface);
  		*ppobj = iface;
  		return S_OK;
  	}
  
  	/* DirectSoundBuffer and DirectSoundBuffer8 are different and */
  	/* a primary buffer can't have a DirectSoundBuffer8 interface */
  	if ( IsEqualGUID( &IID_IDirectSoundBuffer8, riid ) ) {
  		WARN("app requested DirectSoundBuffer8 on primary buffer\n");
  		return E_NOINTERFACE;
  	}
  
  	if ( IsEqualGUID( &IID_IDirectSoundNotify, riid ) ) {
  		ERR("app requested IDirectSoundNotify on primary buffer\n");
  		/* FIXME: should we support this? */
  		return E_NOINTERFACE;
  	}
  
  	if ( IsEqualGUID( &IID_IDirectSound3DBuffer, riid ) ) {
  		ERR("app requested IDirectSound3DBuffer on primary buffer\n");
  		return E_NOINTERFACE;
  	}
  
          if ( IsEqualGUID( &IID_IDirectSound3DListener, riid ) ) {
                  *ppobj = &This->IDirectSound3DListener_iface;
                  IDirectSound3DListener_AddRef(&This->IDirectSound3DListener_iface);
                  return S_OK;
  	}
  
  	if ( IsEqualGUID( &IID_IKsPropertySet, riid ) ) {
                  *ppobj = &This->IKsPropertySet_iface;
                  IKsPropertySet_AddRef(&This->IKsPropertySet_iface);
                  return S_OK;
  	}
  
  	FIXME( "Unknown IID %s\n", debugstr_guid( riid ) );
  	return E_NOINTERFACE;
  }
  
  static const IDirectSoundBufferVtbl dspbvt =
  {
  	PrimaryBufferImpl_QueryInterface,
  	PrimaryBufferImpl_AddRef,
  	PrimaryBufferImpl_Release,
  	PrimaryBufferImpl_GetCaps,
  	PrimaryBufferImpl_GetCurrentPosition,
  	PrimaryBufferImpl_GetFormat,
  	PrimaryBufferImpl_GetVolume,
  	PrimaryBufferImpl_GetPan,
          PrimaryBufferImpl_GetFrequency,
  	PrimaryBufferImpl_GetStatus,
  	PrimaryBufferImpl_Initialize,
  	PrimaryBufferImpl_Lock,
  	PrimaryBufferImpl_Play,
  	PrimaryBufferImpl_SetCurrentPosition,
  	PrimaryBufferImpl_SetFormat,
  	PrimaryBufferImpl_SetVolume,
  	PrimaryBufferImpl_SetPan,
  	PrimaryBufferImpl_SetFrequency,
  	PrimaryBufferImpl_Stop,
  	PrimaryBufferImpl_Unlock,
  	PrimaryBufferImpl_Restore
  };
  
  HRESULT primarybuffer_create(DirectSoundDevice *device, IDirectSoundBufferImpl **ppdsb,
  	const DSBUFFERDESC *dsbd)
  {
  	IDirectSoundBufferImpl *dsb;
  	TRACE("%p,%p,%p)\n",device,ppdsb,dsbd);
  
  	if (dsbd->lpwfxFormat) {
  		WARN("invalid parameter: dsbd->lpwfxFormat != NULL\n");
  		*ppdsb = NULL;
  		return DSERR_INVALIDPARAM;
  	}
  
  	dsb = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(*dsb));
  
  	if (dsb == NULL) {
  		WARN("out of memory\n");
  		*ppdsb = NULL;
  		return DSERR_OUTOFMEMORY;
  	}
  
          dsb->ref = 0;
          dsb->ref3D = 0;
          dsb->refiks = 0;
          dsb->numIfaces = 0;
  	dsb->device = device;
  	dsb->IDirectSoundBuffer8_iface.lpVtbl = (IDirectSoundBuffer8Vtbl *)&dspbvt;
          dsb->IDirectSound3DListener_iface.lpVtbl = &ds3dlvt;
          dsb->IKsPropertySet_iface.lpVtbl = &iksbvt;
  	dsb->dsbd = *dsbd;
  
          /* IDirectSound3DListener */
          device->ds3dl.dwSize = sizeof(DS3DLISTENER);
          device->ds3dl.vPosition.x = 0.0;
          device->ds3dl.vPosition.y = 0.0;
          device->ds3dl.vPosition.z = 0.0;
          device->ds3dl.vVelocity.x = 0.0;
          device->ds3dl.vVelocity.y = 0.0;
          device->ds3dl.vVelocity.z = 0.0;
          device->ds3dl.vOrientFront.x = 0.0;
          device->ds3dl.vOrientFront.y = 0.0;
          device->ds3dl.vOrientFront.z = 1.0;
          device->ds3dl.vOrientTop.x = 0.0;
          device->ds3dl.vOrientTop.y = 1.0;
          device->ds3dl.vOrientTop.z = 0.0;
          device->ds3dl.flDistanceFactor = DS3D_DEFAULTDISTANCEFACTOR;
          device->ds3dl.flRolloffFactor = DS3D_DEFAULTROLLOFFFACTOR;
          device->ds3dl.flDopplerFactor = DS3D_DEFAULTDOPPLERFACTOR;
          device->ds3dl_need_recalc = TRUE;
  
  	TRACE("Created primary buffer at %p\n", dsb);
  	TRACE("(formattag=0x%04x,chans=%d,samplerate=%d,"
  		"bytespersec=%d,blockalign=%d,bitspersamp=%d,cbSize=%d)\n",
  		device->pwfx->wFormatTag, device->pwfx->nChannels,
                  device->pwfx->nSamplesPerSec, device->pwfx->nAvgBytesPerSec,
                  device->pwfx->nBlockAlign, device->pwfx->wBitsPerSample,
                  device->pwfx->cbSize);
  
          IDirectSoundBuffer_AddRef(&dsb->IDirectSoundBuffer8_iface);
  	*ppdsb = dsb;
  	return S_OK;
  }
  