/* * Sample Wine Driver for Advanced Linux Sound System (ALSA) * Based on version of the ALSA API * * Copyright 2007 - Maarten Lankhorst * * 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 */ /*======================================================================* * Low level dsound input implementation * *======================================================================*/ #include "config.h" #include "wine/port.h" #include #include #include #include #ifdef HAVE_UNISTD_H # include #endif #include #include #include #ifdef HAVE_SYS_IOCTL_H # include #endif #ifdef HAVE_SYS_MMAN_H # include #endif #include "windef.h" #include "winbase.h" #include "wingdi.h" #include "winerror.h" #include "winuser.h" #include "mmddk.h" #include "alsa.h" #include "wine/library.h" #include "wine/unicode.h" #include "wine/debug.h" #ifdef HAVE_ALSA WINE_DEFAULT_DEBUG_CHANNEL(dsalsa); typedef struct IDsCaptureDriverImpl IDsCaptureDriverImpl; typedef struct IDsCaptureDriverBufferImpl IDsCaptureDriverBufferImpl; struct IDsCaptureDriverImpl { /* IUnknown fields */ const IDsCaptureDriverVtbl *lpVtbl; LONG ref; /* IDsCaptureDriverImpl fields */ IDsCaptureDriverBufferImpl* capture_buffer; UINT wDevID; }; struct IDsCaptureDriverBufferImpl { const IDsCaptureDriverBufferVtbl *lpVtbl; LONG ref; IDsCaptureDriverImpl* drv; CRITICAL_SECTION pcm_crst; LPBYTE mmap_buffer, presented_buffer; DWORD mmap_buflen_bytes, play_looping, mmap_ofs_bytes; /* Note: snd_pcm_frames_to_bytes(This->pcm, mmap_buflen_frames) != mmap_buflen_bytes */ /* The actual buffer may differ in size from the wanted buffer size */ snd_pcm_t *pcm; snd_pcm_hw_params_t *hw_params; snd_pcm_sw_params_t *sw_params; snd_pcm_uframes_t mmap_buflen_frames, mmap_pos; }; /** * Allocate the memory-mapped buffer for direct sound, and set up the * callback. */ static int CreateMMAP(IDsCaptureDriverBufferImpl* pdbi) { snd_pcm_t *pcm = pdbi->pcm; snd_pcm_format_t format; snd_pcm_uframes_t frames, ofs, avail, psize, boundary; unsigned int channels, bits_per_sample, bits_per_frame; int err, mmap_mode; const snd_pcm_channel_area_t *areas; snd_pcm_hw_params_t *hw_params = pdbi->hw_params; snd_pcm_sw_params_t *sw_params = pdbi->sw_params; mmap_mode = snd_pcm_type(pcm); if (mmap_mode == SND_PCM_TYPE_HW) TRACE("mmap'd buffer is a direct hardware buffer.\n"); else if (mmap_mode == SND_PCM_TYPE_DMIX) TRACE("mmap'd buffer is an ALSA dmix buffer\n"); else TRACE("mmap'd buffer is an ALSA type %d buffer\n", mmap_mode); err = snd_pcm_hw_params_get_period_size(hw_params, &psize, NULL); err = snd_pcm_hw_params_get_format(hw_params, &format); err = snd_pcm_hw_params_get_buffer_size(hw_params, &frames); err = snd_pcm_hw_params_get_channels(hw_params, &channels); bits_per_sample = snd_pcm_format_physical_width(format); bits_per_frame = bits_per_sample * channels; if (TRACE_ON(dsalsa)) ALSA_TraceParameters(hw_params, NULL, FALSE); TRACE("format=%s frames=%ld channels=%d bits_per_sample=%d bits_per_frame=%d\n", snd_pcm_format_name(format), frames, channels, bits_per_sample, bits_per_frame); pdbi->mmap_buflen_frames = frames; snd_pcm_sw_params_current(pcm, sw_params); snd_pcm_sw_params_set_start_threshold(pcm, sw_params, 0); snd_pcm_sw_params_get_boundary(sw_params, &boundary); snd_pcm_sw_params_set_stop_threshold(pcm, sw_params, boundary); snd_pcm_sw_params_set_silence_threshold(pcm, sw_params, INT_MAX); snd_pcm_sw_params_set_silence_size(pcm, sw_params, 0); snd_pcm_sw_params_set_avail_min(pcm, sw_params, 0); snd_pcm_sw_params_set_xrun_mode(pcm, sw_params, SND_PCM_XRUN_NONE); err = snd_pcm_sw_params(pcm, sw_params); avail = snd_pcm_avail_update(pcm); if (avail < 0) { ERR("No buffer is available: %s.\n", snd_strerror(avail)); return DSERR_GENERIC; } err = snd_pcm_mmap_begin(pcm, &areas, &ofs, &avail); if ( err < 0 ) { ERR("Can't map sound device for direct access: %s\n", snd_strerror(err)); return DSERR_GENERIC; } err = snd_pcm_mmap_commit(pcm, ofs, 0); pdbi->mmap_buffer = areas->addr; TRACE("created mmap buffer of %ld frames (%d bytes) at %p\n", frames, pdbi->mmap_buflen_bytes, pdbi->mmap_buffer); return DS_OK; } static HRESULT WINAPI IDsCaptureDriverBufferImpl_QueryInterface(PIDSCDRIVERBUFFER iface, REFIID riid, LPVOID *ppobj) { /* IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface; */ FIXME("(): stub!\n"); return DSERR_UNSUPPORTED; } static ULONG WINAPI IDsCaptureDriverBufferImpl_AddRef(PIDSCDRIVERBUFFER iface) { IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface; ULONG refCount = InterlockedIncrement(&This->ref); TRACE("(%p)->(ref before=%u)\n",This, refCount - 1); return refCount; } static ULONG WINAPI IDsCaptureDriverBufferImpl_Release(PIDSCDRIVERBUFFER iface) { IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface; ULONG refCount = InterlockedDecrement(&This->ref); TRACE("(%p)->(ref before=%u)\n",This, refCount + 1); if (refCount) return refCount; TRACE("mmap buffer %p destroyed\n", This->mmap_buffer); This->drv->capture_buffer = NULL; This->pcm_crst.DebugInfo->Spare[0] = 0; DeleteCriticalSection(&This->pcm_crst); snd_pcm_drop(This->pcm); snd_pcm_close(This->pcm); This->pcm = NULL; HeapFree(GetProcessHeap(), 0, This->presented_buffer); HeapFree(GetProcessHeap(), 0, This->sw_params); HeapFree(GetProcessHeap(), 0, This->hw_params); HeapFree(GetProcessHeap(), 0, This); return 0; } static HRESULT WINAPI IDsCaptureDriverBufferImpl_Lock(PIDSCDRIVERBUFFER iface, LPVOID*ppvAudio1,LPDWORD pdwLen1,LPVOID*ppvAudio2,LPDWORD pdwLen2, DWORD dwWritePosition,DWORD dwWriteLen, DWORD dwFlags) { IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface; TRACE("(%p,%p,%p,%p,%p,%d,%d,0x%08x)\n", This, ppvAudio1, pdwLen1, ppvAudio2, pdwLen2, dwWritePosition, dwWriteLen, dwFlags); if (ppvAudio1) *ppvAudio1 = (LPBYTE)This->presented_buffer + dwWritePosition; if (dwWritePosition + dwWriteLen < This->mmap_buflen_bytes) { if (pdwLen1) *pdwLen1 = dwWriteLen; if (ppvAudio2) *ppvAudio2 = 0; if (pdwLen2) *pdwLen2 = 0; } else { if (pdwLen1) *pdwLen1 = This->mmap_buflen_bytes - dwWritePosition; if (ppvAudio2) *ppvAudio2 = This->presented_buffer; if (pdwLen2) *pdwLen2 = dwWriteLen - (This->mmap_buflen_bytes - dwWritePosition); } return DS_OK; } static HRESULT WINAPI IDsCaptureDriverBufferImpl_Unlock(PIDSCDRIVERBUFFER iface, LPVOID pvAudio1,DWORD dwLen1, LPVOID pvAudio2,DWORD dwLen2) { IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface; TRACE("(%p,%p,%d,%p,%d)\n",This,pvAudio1,dwLen1,pvAudio2,dwLen2); return DS_OK; } static HRESULT WINAPI IDsCaptureDriverBufferImpl_SetFormat(PIDSCDRIVERBUFFER iface, LPWAVEFORMATEX pwfx) { IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface; WINE_WAVEDEV *wwi = &WInDev[This->drv->wDevID]; snd_pcm_t *pcm = NULL; snd_pcm_hw_params_t *hw_params = This->hw_params; snd_pcm_format_t format = -1; snd_pcm_uframes_t buffer_size; DWORD rate = pwfx->nSamplesPerSec; int err=0; TRACE("(%p, %p)\n", iface, pwfx); switch (pwfx->wBitsPerSample) { case 8: format = SND_PCM_FORMAT_U8; break; case 16: format = SND_PCM_FORMAT_S16_LE; break; case 24: format = SND_PCM_FORMAT_S24_LE; break; case 32: format = SND_PCM_FORMAT_S32_LE; break; default: FIXME("Unsupported bpp: %d\n", pwfx->wBitsPerSample); return DSERR_GENERIC; } /* **** */ EnterCriticalSection(&This->pcm_crst); err = snd_pcm_open(&pcm, wwi->pcmname, SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK); if (err < 0) { if (errno != EBUSY || !This->pcm) { /* **** */ LeaveCriticalSection(&This->pcm_crst); WARN("Cannot open sound device: %s\n", snd_strerror(err)); return DSERR_GENERIC; } snd_pcm_drop(This->pcm); snd_pcm_close(This->pcm); This->pcm = NULL; err = snd_pcm_open(&pcm, wwi->pcmname, SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK); if (err < 0) { /* **** */ LeaveCriticalSection(&This->pcm_crst); WARN("Cannot open sound device: %s\n", snd_strerror(err)); return DSERR_BUFFERLOST; } } /* Set some defaults */ snd_pcm_hw_params_any(pcm, hw_params); err = snd_pcm_hw_params_set_channels(pcm, hw_params, pwfx->nChannels); if (err < 0) { WARN("Could not set channels to %d\n", pwfx->nChannels); goto err; } err = snd_pcm_hw_params_set_format(pcm, hw_params, format); if (err < 0) { WARN("Could not set format to %d bpp\n", pwfx->wBitsPerSample); goto err; } err = snd_pcm_hw_params_set_rate_near(pcm, hw_params, &rate, NULL); if (err < 0) { rate = pwfx->nSamplesPerSec; WARN("Could not set rate\n"); goto err; } if (!ALSA_NearMatch(rate, pwfx->nSamplesPerSec)) { WARN("Could not set sound rate to %d, but instead to %d\n", pwfx->nSamplesPerSec, rate); pwfx->nSamplesPerSec = rate; pwfx->nAvgBytesPerSec = rate * pwfx->nBlockAlign; /* Let DirectSound detect this */ } snd_pcm_hw_params_set_periods_integer(pcm, hw_params); buffer_size = snd_pcm_bytes_to_frames(pcm, This->mmap_buflen_bytes); snd_pcm_hw_params_set_buffer_size_near(pcm, hw_params, &buffer_size); buffer_size = 5000; snd_pcm_hw_params_set_period_time_near(pcm, hw_params, (unsigned int*)&buffer_size, NULL); err = snd_pcm_hw_params(pcm, hw_params); err = snd_pcm_sw_params(pcm, This->sw_params); snd_pcm_prepare(pcm); if (This->pcm) { snd_pcm_drop(This->pcm); snd_pcm_close(This->pcm); } This->pcm = pcm; snd_pcm_prepare(This->pcm); CreateMMAP(This); /* **** */ LeaveCriticalSection(&This->pcm_crst); return S_OK; err: if (err < 0) WARN("Failed to apply changes: %s\n", snd_strerror(err)); if (!This->pcm) This->pcm = pcm; else snd_pcm_close(pcm); if (This->pcm) snd_pcm_hw_params_current(This->pcm, This->hw_params); /* **** */ LeaveCriticalSection(&This->pcm_crst); return DSERR_BADFORMAT; } static HRESULT WINAPI IDsCaptureDriverBufferImpl_GetPosition(PIDSCDRIVERBUFFER iface, LPDWORD lpdwCappos, LPDWORD lpdwReadpos) { IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface; FIXME("stub!\n"); EnterCriticalSection(&This->pcm_crst); if (!This->pcm) { FIXME("Bad pointer for pcm: %p\n", This->pcm); LeaveCriticalSection(&This->pcm_crst); return DSERR_GENERIC; } LeaveCriticalSection(&This->pcm_crst); return DSERR_GENERIC; } static HRESULT WINAPI IDsCaptureDriverBufferImpl_GetStatus(PIDSCDRIVERBUFFER iface, LPDWORD lpdwStatus) { IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface; snd_pcm_state_t state; TRACE("(%p,%p)\n",iface,lpdwStatus); state = snd_pcm_state(This->pcm); switch (state) { case SND_PCM_STATE_XRUN: case SND_PCM_STATE_SUSPENDED: case SND_PCM_STATE_RUNNING: *lpdwStatus = DSCBSTATUS_CAPTURING | (This->play_looping ? DSCBSTATUS_LOOPING : 0); break; default: *lpdwStatus = 0; break; } TRACE("State: %d, flags: 0x%08x\n", state, *lpdwStatus); return DS_OK; } static HRESULT WINAPI IDsCaptureDriverBufferImpl_Start(PIDSCDRIVERBUFFER iface, DWORD dwFlags) { IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface; TRACE("(%p,%x)\n",iface,dwFlags); /* **** */ EnterCriticalSection(&This->pcm_crst); snd_pcm_start(This->pcm); This->play_looping = !!(dwFlags & DSCBSTART_LOOPING); if (!This->play_looping) /* Not well supported because of the difference in ALSA size and DSOUND's notion of size * what it does right now is fill the buffer once.. ALSA size */ FIXME("Non-looping buffers are not properly supported!\n"); /* **** */ LeaveCriticalSection(&This->pcm_crst); return DS_OK; } static HRESULT WINAPI IDsCaptureDriverBufferImpl_Stop(PIDSCDRIVERBUFFER iface) { IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface; TRACE("(%p)\n",iface); /* **** */ EnterCriticalSection(&This->pcm_crst); This->play_looping = FALSE; snd_pcm_drop(This->pcm); snd_pcm_prepare(This->pcm); /* **** */ LeaveCriticalSection(&This->pcm_crst); return DS_OK; } static const IDsCaptureDriverBufferVtbl dsdbvt = { IDsCaptureDriverBufferImpl_QueryInterface, IDsCaptureDriverBufferImpl_AddRef, IDsCaptureDriverBufferImpl_Release, IDsCaptureDriverBufferImpl_Lock, IDsCaptureDriverBufferImpl_Unlock, IDsCaptureDriverBufferImpl_SetFormat, IDsCaptureDriverBufferImpl_GetPosition, IDsCaptureDriverBufferImpl_GetStatus, IDsCaptureDriverBufferImpl_Start, IDsCaptureDriverBufferImpl_Stop }; static HRESULT WINAPI IDsCaptureDriverImpl_QueryInterface(PIDSCDRIVER iface, REFIID riid, LPVOID *ppobj) { /* IDsCaptureDriverImpl *This = (IDsCaptureDriverImpl *)iface; */ FIXME("(%p): stub!\n",iface); return DSERR_UNSUPPORTED; } static ULONG WINAPI IDsCaptureDriverImpl_AddRef(PIDSCDRIVER iface) { IDsCaptureDriverImpl *This = (IDsCaptureDriverImpl *)iface; ULONG refCount = InterlockedIncrement(&This->ref); TRACE("(%p)->(ref before=%u)\n",This, refCount - 1); return refCount; } static ULONG WINAPI IDsCaptureDriverImpl_Release(PIDSCDRIVER iface) { IDsCaptureDriverImpl *This = (IDsCaptureDriverImpl *)iface; ULONG refCount = InterlockedDecrement(&This->ref); TRACE("(%p)->(ref before=%u)\n",This, refCount + 1); if (refCount) return refCount; HeapFree(GetProcessHeap(), 0, This); return 0; } static HRESULT WINAPI IDsCaptureDriverImpl_GetDriverDesc(PIDSCDRIVER iface, PDSDRIVERDESC pDesc) { IDsCaptureDriverImpl *This = (IDsCaptureDriverImpl *)iface; TRACE("(%p,%p)\n",iface,pDesc); memcpy(pDesc, &(WInDev[This->wDevID].ds_desc), sizeof(DSDRIVERDESC)); pDesc->dwFlags = 0; pDesc->dnDevNode = WInDev[This->wDevID].waveDesc.dnDevNode; pDesc->wVxdId = 0; pDesc->wReserved = 0; pDesc->ulDeviceNum = This->wDevID; pDesc->dwHeapType = DSDHEAP_NOHEAP; pDesc->pvDirectDrawHeap = NULL; pDesc->dwMemStartAddress = 0xDEAD0000; pDesc->dwMemEndAddress = 0xDEAF0000; pDesc->dwMemAllocExtra = 0; pDesc->pvReserved1 = NULL; pDesc->pvReserved2 = NULL; return DS_OK; } static HRESULT WINAPI IDsCaptureDriverImpl_Open(PIDSCDRIVER iface) { HRESULT hr = S_OK; IDsCaptureDriverImpl *This = (IDsCaptureDriverImpl *)iface; int err=0; snd_pcm_t *pcm = NULL; snd_pcm_hw_params_t *hw_params; /* While this is not really needed, it is a good idea to do this, * to see if sound can be initialized */ hw_params = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_hw_params_sizeof()); if (!hw_params) { hr = DSERR_OUTOFMEMORY; WARN("--> %08x\n", hr); return hr; } err = snd_pcm_open(&pcm, WOutDev[This->wDevID].pcmname, SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK); if (err < 0) goto err; err = snd_pcm_hw_params_any(pcm, hw_params); if (err < 0) goto err; err = snd_pcm_hw_params_set_access (pcm, hw_params, SND_PCM_ACCESS_MMAP_INTERLEAVED); if (err < 0) goto err; TRACE("Success\n"); snd_pcm_close(pcm); HeapFree(GetProcessHeap(), 0, hw_params); return hr; err: hr = DSERR_GENERIC; WARN("Failed to open device: %s\n", snd_strerror(err)); if (pcm) snd_pcm_close(pcm); HeapFree(GetProcessHeap(), 0, hw_params); WARN("--> %08x\n", hr); return hr; } static HRESULT WINAPI IDsCaptureDriverImpl_Close(PIDSCDRIVER iface) { IDsCaptureDriverImpl *This = (IDsCaptureDriverImpl *)iface; TRACE("(%p) stub, harmless\n",This); return DS_OK; } static HRESULT WINAPI IDsCaptureDriverImpl_GetCaps(PIDSCDRIVER iface, PDSCDRIVERCAPS pCaps) { IDsCaptureDriverImpl *This = (IDsCaptureDriverImpl *)iface; WINE_WAVEDEV *wwi = &WInDev[This->wDevID]; TRACE("(%p,%p)\n",iface,pCaps); pCaps->dwSize = sizeof(DSCDRIVERCAPS); pCaps->dwFlags = wwi->ds_caps.dwFlags; pCaps->dwFormats = wwi->incaps.dwFormats; pCaps->dwChannels = wwi->incaps.wChannels; return DS_OK; } static HRESULT WINAPI IDsCaptureDriverImpl_CreateCaptureBuffer(PIDSCDRIVER iface, LPWAVEFORMATEX pwfx, DWORD dwFlags, DWORD dwCardAddress, LPDWORD pdwcbBufferSize, LPBYTE *ppbBuffer, LPVOID *ppvObj) { IDsCaptureDriverImpl *This = (IDsCaptureDriverImpl *)iface; IDsCaptureDriverBufferImpl** ippdsdb = (IDsCaptureDriverBufferImpl**)ppvObj; HRESULT err; TRACE("(%p,%p,%x,%x)\n",iface,pwfx,dwFlags,dwCardAddress); if (This->capture_buffer) return DSERR_ALLOCATED; This->capture_buffer = *ippdsdb = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDsCaptureDriverBufferImpl)); if (*ippdsdb == NULL) return DSERR_OUTOFMEMORY; (*ippdsdb)->hw_params = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_hw_params_sizeof()); (*ippdsdb)->sw_params = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, snd_pcm_sw_params_sizeof()); (*ippdsdb)->presented_buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *pdwcbBufferSize); if (!(*ippdsdb)->hw_params || !(*ippdsdb)->sw_params || !(*ippdsdb)->presented_buffer) { HeapFree(GetProcessHeap(), 0, (*ippdsdb)->sw_params); HeapFree(GetProcessHeap(), 0, (*ippdsdb)->hw_params); HeapFree(GetProcessHeap(), 0, (*ippdsdb)->presented_buffer); return DSERR_OUTOFMEMORY; } (*ippdsdb)->lpVtbl = &dsdbvt; (*ippdsdb)->ref = 1; (*ippdsdb)->drv = This; (*ippdsdb)->mmap_buflen_bytes = *pdwcbBufferSize; InitializeCriticalSection(&(*ippdsdb)->pcm_crst); (*ippdsdb)->pcm_crst.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ALSA_DSCAPTURE.pcm_crst"); /* SetFormat initialises pcm */ err = IDsDriverBuffer_SetFormat((IDsDriverBuffer*)*ppvObj, pwfx); if (FAILED(err)) { WARN("Error occurred: %08x\n", err); goto err; } *ppbBuffer = (*ippdsdb)->presented_buffer; /* buffer is ready to go */ TRACE("buffer created at %p\n", *ippdsdb); return err; err: HeapFree(GetProcessHeap(), 0, (*ippdsdb)->presented_buffer); HeapFree(GetProcessHeap(), 0, (*ippdsdb)->sw_params); HeapFree(GetProcessHeap(), 0, (*ippdsdb)->hw_params); HeapFree(GetProcessHeap(), 0, *ippdsdb); *ippdsdb = NULL; return err; } static const IDsCaptureDriverVtbl dscdvt = { IDsCaptureDriverImpl_QueryInterface, IDsCaptureDriverImpl_AddRef, IDsCaptureDriverImpl_Release, IDsCaptureDriverImpl_GetDriverDesc, IDsCaptureDriverImpl_Open, IDsCaptureDriverImpl_Close, IDsCaptureDriverImpl_GetCaps, IDsCaptureDriverImpl_CreateCaptureBuffer }; /************************************************************************** * widDsCreate [internal] */ DWORD widDsCreate(UINT wDevID, PIDSCDRIVER* drv) { IDsCaptureDriverImpl** idrv = (IDsCaptureDriverImpl**)drv; TRACE("(%d,%p)\n",wDevID,drv); if (!(WInDev[wDevID].dwSupport & WAVECAPS_DIRECTSOUND)) { WARN("Hardware accelerated capture not supported, falling back to wavein\n"); return MMSYSERR_NOTSUPPORTED; } *idrv = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDsCaptureDriverImpl)); if (!*idrv) return MMSYSERR_NOMEM; (*idrv)->lpVtbl = &dscdvt; (*idrv)->ref = 1; (*idrv)->wDevID = wDevID; return MMSYSERR_NOERROR; } /************************************************************************** * widDsDesc [internal] */ DWORD widDsDesc(UINT wDevID, PDSDRIVERDESC desc) { memcpy(desc, &(WInDev[wDevID].ds_desc), sizeof(DSDRIVERDESC)); return MMSYSERR_NOERROR; } #endif /* HAVE_ALSA */