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primary.c

/*                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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <stdarg.h>

#define NONAMELESSSTRUCT
#define NONAMELESSUNION
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "mmsystem.h"
#include "winreg.h"
#include "winternl.h"
#include "mmddk.h"
#include "wine/debug.h"
#include "dsound.h"
#include "dsdriver.h"
#include "dsound_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(dsound);

void DSOUND_RecalcPrimary(DirectSoundDevice *device)
{
      DWORD nBlockAlign;
      TRACE("(%p)\n", device);

      nBlockAlign = device->pwfx->nBlockAlign;
      if (device->hwbuf) {
            DWORD fraglen;
            /* let fragment size approximate the timer delay */
            fraglen = (device->pwfx->nSamplesPerSec * DS_TIME_DEL / 1000) * nBlockAlign;
            /* reduce fragment size until an integer number of them fits in the buffer */
            /* (FIXME: this may or may not be a good idea) */
            while (device->buflen % fraglen) fraglen -= nBlockAlign;
            device->fraglen = fraglen;
            TRACE("fraglen=%ld\n", device->fraglen);
      }
      /* calculate the 10ms write lead */
      device->writelead = (device->pwfx->nSamplesPerSec / 100) * nBlockAlign;
}

static HRESULT DSOUND_PrimaryOpen(DirectSoundDevice *device)
{
      HRESULT err = DS_OK;
      TRACE("(%p)\n", device);

      /* are we using waveOut stuff? */
      if (!device->driver) {
            LPBYTE newbuf;
            DWORD buflen;
            HRESULT merr = DS_OK;
            /* Start in pause mode, to allow buffers to get filled */
            waveOutPause(device->hwo);
            if (device->state == STATE_PLAYING) device->state = STATE_STARTING;
            else if (device->state == STATE_STOPPING) device->state = STATE_STOPPED;
            /* use fragments of 10ms (1/100s) each (which should get us within
             * the documented write cursor lead of 10-15ms) */
            buflen = ((device->pwfx->nSamplesPerSec / 100) * device->pwfx->nBlockAlign) * DS_HEL_FRAGS;
            TRACE("desired buflen=%ld, old buffer=%p\n", buflen, device->buffer);
            /* reallocate emulated primary buffer */

            if (device->buffer)
                  newbuf = HeapReAlloc(GetProcessHeap(),0,device->buffer,buflen);
            else
                  newbuf = HeapAlloc(GetProcessHeap(),0,buflen);

            if (newbuf == NULL) {
                  ERR("failed to allocate primary buffer\n");
                  merr = DSERR_OUTOFMEMORY;
                  /* but the old buffer might still exist and must be re-prepared */
            } else {
                  device->buffer = newbuf;
                  device->buflen = buflen;
            }
            if (device->buffer) {
                  unsigned c;

                  device->fraglen = device->buflen / DS_HEL_FRAGS;

                  /* prepare fragment headers */
                  for (c=0; c<DS_HEL_FRAGS; c++) {
                        device->pwave[c]->lpData = (char*)device->buffer + c*device->fraglen;
                        device->pwave[c]->dwBufferLength = device->fraglen;
                        device->pwave[c]->dwUser = (DWORD)device;
                        device->pwave[c]->dwFlags = 0;
                        device->pwave[c]->dwLoops = 0;
                        err = mmErr(waveOutPrepareHeader(device->hwo,device->pwave[c],sizeof(WAVEHDR)));
                        if (err != DS_OK) {
                              while (c--)
                                    waveOutUnprepareHeader(device->hwo,device->pwave[c],sizeof(WAVEHDR));
                              break;
                        }
                  }

                  device->pwplay = 0;
                  device->pwwrite = 0;
                  device->pwqueue = 0;
                  device->playpos = 0;
                  device->mixpos = 0;
                  FillMemory(device->buffer, device->buflen, (device->pwfx->wBitsPerSample == 8) ? 128 : 0);
                  TRACE("fraglen=%ld\n", device->fraglen);
                  DSOUND_WaveQueue(device, (DWORD)-1);
            }
            if ((err == DS_OK) && (merr != DS_OK))
                  err = merr;
      } else if (!device->hwbuf) {
            err = IDsDriver_CreateSoundBuffer(device->driver,device->pwfx,
                                      DSBCAPS_PRIMARYBUFFER,0,
                                      &(device->buflen),&(device->buffer),
                                      (LPVOID*)&(device->hwbuf));
            if (err != DS_OK) {
                  WARN("IDsDriver_CreateSoundBuffer failed\n");
                  return err;
            }

            if (device->state == STATE_PLAYING) device->state = STATE_STARTING;
            else if (device->state == STATE_STOPPING) device->state = STATE_STOPPED;
            device->playpos = 0;
            device->mixpos = 0;
            FillMemory(device->buffer, device->buflen, (device->pwfx->wBitsPerSample == 8) ? 128 : 0);
      }

      return err;
}


static void DSOUND_PrimaryClose(DirectSoundDevice *device)
{
      TRACE("(%p)\n", device);

      /* are we using waveOut stuff? */
      if (!device->hwbuf) {
            unsigned c;

            device->pwqueue = (DWORD)-1; /* resetting queues */
            waveOutReset(device->hwo);
            for (c=0; c<DS_HEL_FRAGS; c++)
                  waveOutUnprepareHeader(device->hwo, device->pwave[c], sizeof(WAVEHDR));
            device->pwqueue = 0;
      } else {
            if (IDsDriverBuffer_Release(device->hwbuf) == 0)
                  device->hwbuf = 0;
      }
}

HRESULT DSOUND_PrimaryCreate(DirectSoundDevice *device)
{
      HRESULT err = DS_OK;
      TRACE("(%p)\n", device);

      device->buflen = device->pwfx->nAvgBytesPerSec;

      /* FIXME: verify that hardware capabilities (DSCAPS_PRIMARY flags) match */

      if (device->driver) {
            err = IDsDriver_CreateSoundBuffer(device->driver,device->pwfx,
                                      DSBCAPS_PRIMARYBUFFER,0,
                                      &(device->buflen),&(device->buffer),
                                      (LPVOID*)&(device->hwbuf));
            if (err != DS_OK) {
                  WARN("IDsDriver_CreateSoundBuffer failed\n");
                  return err;
            }
      }
      if (!device->hwbuf) {
            /* Allocate memory for HEL buffer headers */
            unsigned c;
            for (c=0; c<DS_HEL_FRAGS; c++) {
                  device->pwave[c] = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(WAVEHDR));
                  if (!device->pwave[c]) {
                        /* Argh, out of memory */
                        while (c--) {
                              HeapFree(GetProcessHeap(),0,device->pwave[c]);
                        }
                        WARN("out of memory\n");
                        return DSERR_OUTOFMEMORY;
                  }
            }
      }

      err = DSOUND_PrimaryOpen(device);

      if (err != DS_OK) {
            WARN("DSOUND_PrimaryOpen failed\n");
            return err;
      }

      /* calculate fragment size and write lead */
      DSOUND_RecalcPrimary(device);
      device->state = STATE_STOPPED;
      return DS_OK;
}

HRESULT DSOUND_PrimaryDestroy(DirectSoundDevice *device)
{
      TRACE("(%p)\n", device);

      DSOUND_PrimaryClose(device);
      if (device->driver) {
            if (device->hwbuf) {
                  if (IDsDriverBuffer_Release(device->hwbuf) == 0)
                        device->hwbuf = 0;
            }
      } else {
            unsigned c;
            for (c=0; c<DS_HEL_FRAGS; c++) {
                  HeapFree(GetProcessHeap(),0,device->pwave[c]);
            }
      }
        HeapFree(GetProcessHeap(),0,device->pwfx);
        device->pwfx=NULL;
      return DS_OK;
}

HRESULT DSOUND_PrimaryPlay(DirectSoundDevice *device)
{
      HRESULT err = DS_OK;
      TRACE("(%p)\n", device);

      if (device->hwbuf) {
            err = IDsDriverBuffer_Play(device->hwbuf, 0, 0, DSBPLAY_LOOPING);
            if (err != DS_OK)
                  WARN("IDsDriverBuffer_Play failed\n");
      } else {
            err = mmErr(waveOutRestart(device->hwo));
            if (err != DS_OK)
                  WARN("waveOutRestart failed\n");
      }

      return err;
}

HRESULT DSOUND_PrimaryStop(DirectSoundDevice *device)
{
      HRESULT err = DS_OK;
      TRACE("(%p)\n", device);

      if (device->hwbuf) {
            err = IDsDriverBuffer_Stop(device->hwbuf);
            if (err == DSERR_BUFFERLOST) {
                  DWORD flags = CALLBACK_FUNCTION;
                  if (ds_hw_accel != DS_HW_ACCEL_EMULATION)
                        flags |= WAVE_DIRECTSOUND;
                  /* Wine-only: the driver wants us to reopen the device */
                  /* FIXME: check for errors */
                  IDsDriverBuffer_Release(device->hwbuf);
                  waveOutClose(device->hwo);
                  device->hwo = 0;
                  err = mmErr(waveOutOpen(&(device->hwo), device->drvdesc.dnDevNode,
                                    device->pwfx, (DWORD_PTR)DSOUND_callback, (DWORD)device,
                                    flags));
                  if (err == DS_OK) {
                        err = IDsDriver_CreateSoundBuffer(device->driver,device->pwfx,
                                                  DSBCAPS_PRIMARYBUFFER,0,
                                                  &(device->buflen),&(device->buffer),
                                                  (LPVOID)&(device->hwbuf));
                        if (err != DS_OK)
                              WARN("IDsDriver_CreateSoundBuffer failed\n");
                  } else {
                        WARN("waveOutOpen failed\n");
                  }
            } else if (err != DS_OK) {
                  WARN("IDsDriverBuffer_Stop failed\n");
            }
      } else {
            err = mmErr(waveOutPause(device->hwo));
            if (err != DS_OK)
                  WARN("waveOutPause failed\n");
      }
      return err;
}

HRESULT DSOUND_PrimaryGetPosition(DirectSoundDevice *device, LPDWORD playpos, LPDWORD writepos)
{
      TRACE("(%p,%p,%p)\n", device, playpos, writepos);

      if (device->hwbuf) {
            HRESULT err=IDsDriverBuffer_GetPosition(device->hwbuf,playpos,writepos);
            if (err) {
                  WARN("IDsDriverBuffer_GetPosition failed\n");
                  return err;
            }
      } else {
            if (playpos) {
                  MMTIME mtime;
                  mtime.wType = TIME_BYTES;
                  waveOutGetPosition(device->hwo, &mtime, sizeof(mtime));
                  mtime.u.cb = mtime.u.cb % device->buflen;
                  *playpos = mtime.u.cb;
            }
            if (writepos) {
                  /* the writepos should only be used by apps with WRITEPRIMARY priority,
                   * in which case our software mixer is disabled anyway */
                  *writepos = (device->pwplay + ds_hel_margin) * device->fraglen;
                  while (*writepos >= device->buflen)
                        *writepos -= device->buflen;
            }
      }
      TRACE("playpos = %ld, writepos = %ld (%p, time=%ld)\n", playpos?*playpos:0, writepos?*writepos:0, device, GetTickCount());
      return DS_OK;
}

HRESULT DSOUND_PrimarySetFormat(DirectSoundDevice *device, LPCWAVEFORMATEX wfex)
{
      HRESULT err = DS_OK;
      int i, alloc_size, cp_size;
      DWORD nSamplesPerSec;
      TRACE("(%p,%p)\n", device, wfex);

      if (device->priolevel == DSSCL_NORMAL) {
            WARN("failed priority check!\n");
            return DSERR_PRIOLEVELNEEDED;
      }

      /* Let's be pedantic! */
      if (wfex == NULL) {
            WARN("invalid parameter: wfex==NULL!\n");
            return DSERR_INVALIDPARAM;
      }
      TRACE("(formattag=0x%04x,chans=%d,samplerate=%ld,"
            "bytespersec=%ld,blockalign=%d,bitspersamp=%d,cbSize=%d)\n",
            wfex->wFormatTag, wfex->nChannels, wfex->nSamplesPerSec,
            wfex->nAvgBytesPerSec, wfex->nBlockAlign,
            wfex->wBitsPerSample, wfex->cbSize);

      /* **** */
      RtlAcquireResourceExclusive(&(device->buffer_list_lock), TRUE);
      EnterCriticalSection(&(device->mixlock));

      if (wfex->wFormatTag == WAVE_FORMAT_PCM) {
            alloc_size = sizeof(WAVEFORMATEX);
            cp_size = sizeof(PCMWAVEFORMAT);
        } else
            alloc_size = cp_size = sizeof(WAVEFORMATEX) + wfex->cbSize;

        device->pwfx = HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,device->pwfx,alloc_size);

      nSamplesPerSec = device->pwfx->nSamplesPerSec;

        CopyMemory(device->pwfx, wfex, cp_size);

      if (device->drvdesc.dwFlags & DSDDESC_DOMMSYSTEMSETFORMAT) {
            DWORD flags = CALLBACK_FUNCTION;
            if (ds_hw_accel != DS_HW_ACCEL_EMULATION)
                  flags |= WAVE_DIRECTSOUND;
            /* FIXME: check for errors */
            DSOUND_PrimaryClose(device);
            waveOutClose(device->hwo);
            device->hwo = 0;
                err = mmErr(waveOutOpen(&(device->hwo), device->drvdesc.dnDevNode,
                                        device->pwfx, (DWORD_PTR)DSOUND_callback, (DWORD)device,
                                        flags));
                if (err == DS_OK) {
                    err = DSOUND_PrimaryOpen(device);
                if (err != DS_OK) {
                  WARN("DSOUND_PrimaryOpen failed\n");
                  goto done;
                }
            } else {
                  WARN("waveOutOpen failed\n");
                  goto done;
            }
      } else if (device->hwbuf) {
            err = IDsDriverBuffer_SetFormat(device->hwbuf, device->pwfx);
            if (err == DSERR_BUFFERLOST) {
                  /* Wine-only: the driver wants us to recreate the HW buffer */
                  IDsDriverBuffer_Release(device->hwbuf);
                  err = IDsDriver_CreateSoundBuffer(device->driver,device->pwfx,
                                            DSBCAPS_PRIMARYBUFFER,0,
                                            &(device->buflen),&(device->buffer),
                                            (LPVOID)&(device->hwbuf));
                  if (err != DS_OK) {
                        WARN("IDsDriver_CreateSoundBuffer failed\n");
                        goto done;
                  }
                  if (device->state == STATE_PLAYING) device->state = STATE_STARTING;
                  else if (device->state == STATE_STOPPING) device->state = STATE_STOPPED;
            } else {
                  WARN("IDsDriverBuffer_SetFormat failed\n");
                  goto done;
            }
                /* FIXME: should we set err back to DS_OK in all cases ? */
      }
      DSOUND_RecalcPrimary(device);

      if (nSamplesPerSec != device->pwfx->nSamplesPerSec) {
            IDirectSoundBufferImpl** dsb = device->buffers;
            for (i = 0; i < device->nrofbuffers; i++, dsb++) {
                  /* **** */
                  EnterCriticalSection(&((*dsb)->lock));

                  (*dsb)->freqAdjust = ((*dsb)->freq << DSOUND_FREQSHIFT) /
                        wfex->nSamplesPerSec;

                  LeaveCriticalSection(&((*dsb)->lock));
                  /* **** */
            }
      }

done:
      LeaveCriticalSection(&(device->mixlock));
      RtlReleaseResource(&(device->buffer_list_lock));
      /* **** */

      return err;
}

/*******************************************************************************
 *          PrimaryBuffer
 */
/* This sets this format for the <em>Primary Buffer Only</em> */
/* See file:///cdrom/sdk52/docs/worddoc/dsound.doc page 120 */
static HRESULT WINAPI PrimaryBufferImpl_SetFormat(
    LPDIRECTSOUNDBUFFER8 iface,
    LPCWAVEFORMATEX wfex)
{
    TRACE("(%p,%p)\n", iface, wfex);
    return DSOUND_PrimarySetFormat(((PrimaryBufferImpl *)iface)->device, wfex);
}

static HRESULT WINAPI PrimaryBufferImpl_SetVolume(
      LPDIRECTSOUNDBUFFER8 iface,LONG vol
) {
      DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->device;
      DWORD ampfactors;
      DSVOLUMEPAN volpan;
        HRESULT hres = DS_OK;
      TRACE("(%p,%ld)\n", iface, vol);

      if (!(device->dsbd.dwFlags & DSBCAPS_CTRLVOLUME)) {
            WARN("control unavailable\n");
            return DSERR_CONTROLUNAVAIL;
      }

      if ((vol > DSBVOLUME_MAX) || (vol < DSBVOLUME_MIN)) {
            WARN("invalid parameter: vol = %ld\n", vol);
            return DSERR_INVALIDPARAM;
      }

      /* **** */
      EnterCriticalSection(&(device->mixlock));

        waveOutGetVolume(device->hwo, &ampfactors);
        volpan.dwTotalLeftAmpFactor=ampfactors & 0xffff;
        volpan.dwTotalRightAmpFactor=ampfactors >> 16;
        DSOUND_AmpFactorToVolPan(&volpan);
        if (vol != volpan.lVolume) {
            volpan.lVolume=vol;
            DSOUND_RecalcVolPan(&volpan);
            if (device->hwbuf) {
                hres = IDsDriverBuffer_SetVolumePan(device->hwbuf, &volpan);
                if (hres != DS_OK)
                    WARN("IDsDriverBuffer_SetVolumePan failed\n");
            } else {
                ampfactors = (volpan.dwTotalLeftAmpFactor & 0xffff) | (volpan.dwTotalRightAmpFactor << 16);
                waveOutSetVolume(device->hwo, ampfactors);
            }
        }

      LeaveCriticalSection(&(device->mixlock));
      /* **** */

      return hres;
}

static HRESULT WINAPI PrimaryBufferImpl_GetVolume(
      LPDIRECTSOUNDBUFFER8 iface,LPLONG vol
) {
      DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->device;
      DWORD ampfactors;
      DSVOLUMEPAN volpan;
      TRACE("(%p,%p)\n", iface, vol);

      if (!(device->dsbd.dwFlags & DSBCAPS_CTRLVOLUME)) {
            WARN("control unavailable\n");
            return DSERR_CONTROLUNAVAIL;
      }

      if (vol == NULL) {
            WARN("invalid parameter: vol = NULL\n");
            return DSERR_INVALIDPARAM;
      }

      waveOutGetVolume(device->hwo, &ampfactors);
      volpan.dwTotalLeftAmpFactor=ampfactors & 0xffff;
      volpan.dwTotalRightAmpFactor=ampfactors >> 16;
      DSOUND_AmpFactorToVolPan(&volpan);
      *vol = volpan.lVolume;
      return DS_OK;
}

static HRESULT WINAPI PrimaryBufferImpl_SetFrequency(
      LPDIRECTSOUNDBUFFER8 iface,DWORD freq
) {
      PrimaryBufferImpl *This = (PrimaryBufferImpl *)iface;
      TRACE("(%p,%ld)\n",This,freq);

      /* You cannot set the frequency of the primary buffer */
      WARN("control unavailable\n");
      return DSERR_CONTROLUNAVAIL;
}

static HRESULT WINAPI PrimaryBufferImpl_Play(
      LPDIRECTSOUNDBUFFER8 iface,DWORD reserved1,DWORD reserved2,DWORD flags
) {
      DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->device;
      TRACE("(%p,%08lx,%08lx,%08lx)\n", iface, reserved1, reserved2, flags);

      if (!(flags & DSBPLAY_LOOPING)) {
            WARN("invalid parameter: flags = %08lx\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(LPDIRECTSOUNDBUFFER8 iface)
{
      DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->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(LPDIRECTSOUNDBUFFER8 iface)
{
    PrimaryBufferImpl *This = (PrimaryBufferImpl *)iface;
    ULONG ref = InterlockedIncrement(&(This->ref));
    TRACE("(%p) ref was %ld\n", This, ref - 1);
    return ref;
}

static ULONG WINAPI PrimaryBufferImpl_Release(LPDIRECTSOUNDBUFFER8 iface)
{
    PrimaryBufferImpl *This = (PrimaryBufferImpl *)iface;
    DWORD ref = InterlockedDecrement(&(This->ref));
    TRACE("(%p) ref was %ld\n", This, ref + 1);

    if (!ref) {
        This->device->primary = NULL;
        HeapFree(GetProcessHeap(), 0, This);
        TRACE("(%p) released\n", This);
    }
    return ref;
}

static HRESULT WINAPI PrimaryBufferImpl_GetCurrentPosition(
      LPDIRECTSOUNDBUFFER8 iface,LPDWORD playpos,LPDWORD writepos
) {
      HRESULT     hres;
        DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->device;
      TRACE("(%p,%p,%p)\n", iface, playpos, writepos);

      hres = DSOUND_PrimaryGetPosition(device, playpos, writepos);
      if (hres != DS_OK) {
            WARN("DSOUND_PrimaryGetPosition failed\n");
            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;
      }
      TRACE("playpos = %ld, writepos = %ld (%p, time=%ld)\n", playpos?*playpos:0, writepos?*writepos:0, device, GetTickCount());
      return DS_OK;
}

static HRESULT WINAPI PrimaryBufferImpl_GetStatus(
      LPDIRECTSOUNDBUFFER8 iface,LPDWORD status
) {
        DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->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=%lx\n", *status);
      return DS_OK;
}


static HRESULT WINAPI PrimaryBufferImpl_GetFormat(
    LPDIRECTSOUNDBUFFER8 iface,
    LPWAVEFORMATEX lpwf,
    DWORD wfsize,
    LPDWORD wfwritten)
{
    DWORD size;
    DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->device;
    TRACE("(%p,%p,%ld,%p)\n", iface, lpwf, wfsize, wfwritten);

    size = sizeof(WAVEFORMATEX) + device->pwfx->cbSize;

    if (lpwf) {   /* NULL is valid */
        if (wfsize >= size) {
            CopyMemory(lpwf,device->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->pwfx->cbSize;
        else {
            WARN("invalid parameter: wfwritten == NULL\n");
            return DSERR_INVALIDPARAM;
        }
    }

    return DS_OK;
}

static HRESULT WINAPI PrimaryBufferImpl_Lock(
      LPDIRECTSOUNDBUFFER8 iface,DWORD writecursor,DWORD writebytes,LPVOID lplpaudioptr1,LPDWORD audiobytes1,LPVOID lplpaudioptr2,LPDWORD audiobytes2,DWORD flags
) {
        DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->device;
      TRACE("(%p,%ld,%ld,%p,%p,%p,%p,0x%08lx) at %ld\n",
            iface,
            writecursor,
            writebytes,
            lplpaudioptr1,
            audiobytes1,
            lplpaudioptr2,
            audiobytes2,
            flags,
            GetTickCount()
      );

      if (device->priolevel != DSSCL_WRITEPRIMARY) {
            WARN("failed priority check!\n");
            return DSERR_PRIOLEVELNEEDED;
      }

      if (flags & DSBLOCK_FROMWRITECURSOR) {
            DWORD writepos;
            HRESULT hres;
            /* GetCurrentPosition does too much magic to duplicate here */
            hres = IDirectSoundBuffer_GetCurrentPosition(iface, NULL, &writepos);
            if (hres != DS_OK) {
                  WARN("IDirectSoundBuffer_GetCurrentPosition failed\n");
                  return hres;
            }
            writecursor += writepos;
      }
      while (writecursor >= device->buflen)
            writecursor -= device->buflen;
      if (flags & DSBLOCK_ENTIREBUFFER)
            writebytes = device->buflen;
      if (writebytes > device->buflen)
            writebytes = device->buflen;

      if (!(device->drvdesc.dwFlags & DSDDESC_DONTNEEDPRIMARYLOCK) && device->hwbuf) {
            HRESULT hres;
            hres = IDsDriverBuffer_Lock(device->hwbuf,
                                  lplpaudioptr1, audiobytes1,
                                  lplpaudioptr2, audiobytes2,
                                  writecursor, writebytes,
                                  0);
            if (hres != DS_OK) {
                  WARN("IDsDriverBuffer_Lock failed\n");
                  return hres;
            }
      } else {
            if (writecursor+writebytes <= device->buflen) {
                  *(LPBYTE*)lplpaudioptr1 = device->buffer+writecursor;
                  *audiobytes1 = writebytes;
                  if (lplpaudioptr2)
                        *(LPBYTE*)lplpaudioptr2 = NULL;
                  if (audiobytes2)
                        *audiobytes2 = 0;
                  TRACE("->%ld.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("->%ld.%ld\n",*audiobytes1,audiobytes2?*audiobytes2:0);
            }
      }
      return DS_OK;
}

static HRESULT WINAPI PrimaryBufferImpl_SetCurrentPosition(
      LPDIRECTSOUNDBUFFER8 iface,DWORD newpos
) {
      PrimaryBufferImpl *This = (PrimaryBufferImpl *)iface;
      TRACE("(%p,%ld)\n",This,newpos);

      /* You cannot set the position of the primary buffer */
      WARN("invalid call\n");
      return DSERR_INVALIDCALL;
}

static HRESULT WINAPI PrimaryBufferImpl_SetPan(
      LPDIRECTSOUNDBUFFER8 iface,LONG pan
) {
        DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->device;
      DWORD ampfactors;
      DSVOLUMEPAN volpan;
        HRESULT hres = DS_OK;
      TRACE("(%p,%ld)\n", iface, pan);

      if (!(device->dsbd.dwFlags & DSBCAPS_CTRLPAN)) {
            WARN("control unavailable\n");
            return DSERR_CONTROLUNAVAIL;
      }

      if ((pan > DSBPAN_RIGHT) || (pan < DSBPAN_LEFT)) {
            WARN("invalid parameter: pan = %ld\n", pan);
            return DSERR_INVALIDPARAM;
      }

      /* **** */
      EnterCriticalSection(&(device->mixlock));

        waveOutGetVolume(device->hwo, &ampfactors);
        volpan.dwTotalLeftAmpFactor=ampfactors & 0xffff;
        volpan.dwTotalRightAmpFactor=ampfactors >> 16;
        DSOUND_AmpFactorToVolPan(&volpan);
        if (pan != volpan.lPan) {
            volpan.lPan=pan;
            DSOUND_RecalcVolPan(&volpan);
            if (device->hwbuf) {
                hres = IDsDriverBuffer_SetVolumePan(device->hwbuf, &volpan);
                if (hres != DS_OK)
                    WARN("IDsDriverBuffer_SetVolumePan failed\n");
            } else {
                ampfactors = (volpan.dwTotalLeftAmpFactor & 0xffff) | (volpan.dwTotalRightAmpFactor << 16);
                waveOutSetVolume(device->hwo, ampfactors);
            }
        }

      LeaveCriticalSection(&(device->mixlock));
      /* **** */

      return hres;
}

static HRESULT WINAPI PrimaryBufferImpl_GetPan(
      LPDIRECTSOUNDBUFFER8 iface,LPLONG pan
) {
        DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->device;
      DWORD ampfactors;
      DSVOLUMEPAN volpan;
      TRACE("(%p,%p)\n", iface, pan);

      if (!(device->dsbd.dwFlags & DSBCAPS_CTRLPAN)) {
            WARN("control unavailable\n");
            return DSERR_CONTROLUNAVAIL;
      }

      if (pan == NULL) {
            WARN("invalid parameter: pan == NULL\n");
            return DSERR_INVALIDPARAM;
      }

      waveOutGetVolume(device->hwo, &ampfactors);
      volpan.dwTotalLeftAmpFactor=ampfactors & 0xffff;
      volpan.dwTotalRightAmpFactor=ampfactors >> 16;
      DSOUND_AmpFactorToVolPan(&volpan);
      *pan = volpan.lPan;
      return DS_OK;
}

static HRESULT WINAPI PrimaryBufferImpl_Unlock(
      LPDIRECTSOUNDBUFFER8 iface,LPVOID p1,DWORD x1,LPVOID p2,DWORD x2
) {
        DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->device;
      TRACE("(%p,%p,%ld,%p,%ld)\n", iface, p1, x1, p2, x2);

      if (device->priolevel != DSSCL_WRITEPRIMARY) {
            WARN("failed priority check!\n");
            return DSERR_PRIOLEVELNEEDED;
      }

      if (!(device->drvdesc.dwFlags & DSDDESC_DONTNEEDPRIMARYLOCK) && device->hwbuf) {
            HRESULT     hres;
            
            hres = IDsDriverBuffer_Unlock(device->hwbuf, p1, x1, p2, x2);
            if (hres != DS_OK) {
                  WARN("IDsDriverBuffer_Unlock failed\n");
                  return hres;
            }
      }

      return DS_OK;
}

static HRESULT WINAPI PrimaryBufferImpl_Restore(
      LPDIRECTSOUNDBUFFER8 iface
) {
      PrimaryBufferImpl *This = (PrimaryBufferImpl *)iface;
      FIXME("(%p):stub\n",This);
      return DS_OK;
}

static HRESULT WINAPI PrimaryBufferImpl_GetFrequency(
      LPDIRECTSOUNDBUFFER8 iface,LPDWORD freq
) {
        DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->device;
      TRACE("(%p,%p)\n", iface, freq);

      if (freq == NULL) {
            WARN("invalid parameter: freq == NULL\n");
            return DSERR_INVALIDPARAM;
      }

      if (!(device->dsbd.dwFlags & DSBCAPS_CTRLFREQUENCY)) {
            WARN("control unavailable\n");
            return DSERR_CONTROLUNAVAIL;
      }

      *freq = device->pwfx->nSamplesPerSec;
      TRACE("-> %ld\n", *freq);

      return DS_OK;
}

static HRESULT WINAPI PrimaryBufferImpl_SetFX(
      LPDIRECTSOUNDBUFFER8 iface,DWORD dwEffectsCount,LPDSEFFECTDESC pDSFXDesc,LPDWORD pdwResultCodes
) {
      PrimaryBufferImpl *This = (PrimaryBufferImpl *)iface;
      DWORD u;
      FIXME("(%p,%lu,%p,%p): stub\n",This,dwEffectsCount,pDSFXDesc,pdwResultCodes);

      if (pdwResultCodes)
            for (u=0; u<dwEffectsCount; u++) pdwResultCodes[u] = DSFXR_UNKNOWN;

      WARN("control unavailable\n");
      return DSERR_CONTROLUNAVAIL;
}

static HRESULT WINAPI PrimaryBufferImpl_AcquireResources(
      LPDIRECTSOUNDBUFFER8 iface,DWORD dwFlags,DWORD dwEffectsCount,LPDWORD pdwResultCodes
) {
      PrimaryBufferImpl *This = (PrimaryBufferImpl *)iface;
      DWORD u;
      FIXME("(%p,%08lu,%lu,%p): stub\n",This,dwFlags,dwEffectsCount,pdwResultCodes);

      if (pdwResultCodes)
            for (u=0; u<dwEffectsCount; u++) pdwResultCodes[u] = DSFXR_UNKNOWN;

      WARN("control unavailable\n");
      return DSERR_CONTROLUNAVAIL;
}

static HRESULT WINAPI PrimaryBufferImpl_GetObjectInPath(
      LPDIRECTSOUNDBUFFER8 iface,REFGUID rguidObject,DWORD dwIndex,REFGUID rguidInterface,LPVOID* ppObject
) {
      PrimaryBufferImpl *This = (PrimaryBufferImpl *)iface;
      FIXME("(%p,%s,%lu,%s,%p): stub\n",This,debugstr_guid(rguidObject),dwIndex,debugstr_guid(rguidInterface),ppObject);

      WARN("control unavailable\n");
      return DSERR_CONTROLUNAVAIL;
}

static HRESULT WINAPI PrimaryBufferImpl_Initialize(
      LPDIRECTSOUNDBUFFER8 iface,LPDIRECTSOUND dsound,LPCDSBUFFERDESC dbsd
) {
      PrimaryBufferImpl *This = (PrimaryBufferImpl *)iface;
      FIXME("(%p,%p,%p):stub\n",This,dsound,dbsd);
      DPRINTF("Re-Init!!!\n");
      WARN("already initialized\n");
      return DSERR_ALREADYINITIALIZED;
}

static HRESULT WINAPI PrimaryBufferImpl_GetCaps(
      LPDIRECTSOUNDBUFFER8 iface,LPDSBCAPS caps
) {
        DirectSoundDevice *device = ((PrimaryBufferImpl *)iface)->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 = %ld: < %d\n", caps->dwSize, sizeof(*caps));
            return DSERR_INVALIDPARAM;
      }

      caps->dwFlags = device->dsbd.dwFlags;
      if (device->hwbuf) caps->dwFlags |= DSBCAPS_LOCHARDWARE;
      else caps->dwFlags |= DSBCAPS_LOCSOFTWARE;

      caps->dwBufferBytes = device->buflen;

      /* This value represents the speed of the "unlock" command.
         As unlock is quite fast (it does not do anything), I put
         4096 ko/s = 4 Mo / s */
      /* FIXME: hwbuf speed */
      caps->dwUnlockTransferRate = 4096;
      caps->dwPlayCpuOverhead = 0;

      return DS_OK;
}

static HRESULT WINAPI PrimaryBufferImpl_QueryInterface(
      LPDIRECTSOUNDBUFFER8 iface,REFIID riid,LPVOID *ppobj
) {
        PrimaryBufferImpl *This = (PrimaryBufferImpl *)iface;
        DirectSoundDevice *device = This->device;
      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((LPDIRECTSOUNDBUFFER)This);
            *ppobj = This;
            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 ) ) {
            if (!device->listener)
                  IDirectSound3DListenerImpl_Create(device, &device->listener);
            if (device->listener) {
                  *ppobj = device->listener;
                  IDirectSound3DListener_AddRef((LPDIRECTSOUND3DLISTENER)*ppobj);
                  return S_OK;
            }

            WARN("IID_IDirectSound3DListener failed\n");
            return E_NOINTERFACE;
      }

      if ( IsEqualGUID( &IID_IKsPropertySet, riid ) ) {
            FIXME("app requested IKsPropertySet on primary buffer\n");
            return E_NOINTERFACE;
      }

      FIXME( "Unknown IID %s\n", debugstr_guid( riid ) );
      return E_NOINTERFACE;
}

static const IDirectSoundBuffer8Vtbl 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,
      PrimaryBufferImpl_SetFX,
      PrimaryBufferImpl_AcquireResources,
      PrimaryBufferImpl_GetObjectInPath
};

HRESULT PrimaryBufferImpl_Create(
      DirectSoundDevice * device,
      PrimaryBufferImpl ** ppdsb,
      LPCDSBUFFERDESC dsbd)
{
      PrimaryBufferImpl *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->device = device;
      dsb->lpVtbl = &dspbvt;

      CopyMemory(&device->dsbd, dsbd, sizeof(*dsbd));

      TRACE("Created primary buffer at %p\n", dsb);
      TRACE("(formattag=0x%04x,chans=%d,samplerate=%ld,"
            "bytespersec=%ld,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);

      *ppdsb = dsb;
      return S_OK;
}

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