ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Sweden-Number/dlls/wineoss.drv/dscapture.c

1331 lines
44 KiB
C
Raw Blame History

/*
* Direct Sound Capture driver
*
* Copyright 2004 Robert Reif
*
* 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
*/
#include "config.h"
#include "wine/port.h"
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <errno.h>
#include <fcntl.h>
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_MMAN_H
# include <sys/mman.h>
#endif
#ifdef HAVE_POLL_H
#include <poll.h>
#endif
#ifdef HAVE_SYS_POLL_H
# include <sys/poll.h>
#endif
#ifdef HAVE_SYS_ERRNO_H
#include <sys/errno.h>
#endif
#include <sys/soundcard.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
#include "mmddk.h"
#include "mmreg.h"
#include "dsound.h"
#include "dsdriver.h"
#include "wine/debug.h"
#include "audio.h"
WINE_DEFAULT_DEBUG_CHANNEL(dscapture);
/*======================================================================*
* Low level DSOUND capture definitions *
*======================================================================*/
typedef struct IDsCaptureDriverPropertySetImpl IDsCaptureDriverPropertySetImpl;
typedef struct IDsCaptureDriverNotifyImpl IDsCaptureDriverNotifyImpl;
typedef struct IDsCaptureDriverImpl IDsCaptureDriverImpl;
typedef struct IDsCaptureDriverBufferImpl IDsCaptureDriverBufferImpl;
struct IDsCaptureDriverPropertySetImpl
{
/* IUnknown fields */
IDsDriverPropertySet IDsDriverPropertySet_iface;
LONG ref;
IDsCaptureDriverBufferImpl* capture_buffer;
};
struct IDsCaptureDriverNotifyImpl
{
/* IUnknown fields */
IDsDriverNotify IDsDriverNotify_iface;
LONG ref;
IDsCaptureDriverBufferImpl* capture_buffer;
};
struct IDsCaptureDriverImpl
{
/* IUnknown fields */
IDsCaptureDriver IDsCaptureDriver_iface;
LONG ref;
/* IDsCaptureDriverImpl fields */
UINT wDevID;
IDsCaptureDriverBufferImpl* capture_buffer;
};
struct IDsCaptureDriverBufferImpl
{
/* IUnknown fields */
IDsCaptureDriverBuffer IDsCaptureDriverBuffer_iface;
LONG ref;
/* IDsCaptureDriverBufferImpl fields */
IDsCaptureDriverImpl* drv;
LPBYTE buffer; /* user buffer */
DWORD buflen; /* user buffer length */
LPBYTE mapping; /* DMA buffer */
DWORD maplen; /* DMA buffer length */
BOOL is_direct_map; /* DMA == user ? */
DWORD fragsize;
DWORD map_writepos; /* DMA write offset */
DWORD map_readpos; /* DMA read offset */
DWORD writeptr; /* user write offset */
DWORD readptr; /* user read offset */
/* IDsDriverNotifyImpl fields */
IDsCaptureDriverNotifyImpl* notify;
int notify_index;
LPDSBPOSITIONNOTIFY notifies;
int nrofnotifies;
/* IDsDriverPropertySetImpl fields */
IDsCaptureDriverPropertySetImpl* property_set;
BOOL is_capturing;
BOOL is_looping;
WAVEFORMATEX wfx;
HANDLE hThread;
DWORD dwThreadID;
HANDLE hStartUpEvent;
HANDLE hExitEvent;
int pipe_fd[2];
int fd;
};
static inline IDsCaptureDriverPropertySetImpl *impl_from_IDsDriverPropertySet(IDsDriverPropertySet *iface)
{
return CONTAINING_RECORD(iface, IDsCaptureDriverPropertySetImpl, IDsDriverPropertySet_iface);
}
static inline IDsCaptureDriverNotifyImpl *impl_from_IDsDriverNotify(IDsDriverNotify *iface)
{
return CONTAINING_RECORD(iface, IDsCaptureDriverNotifyImpl, IDsDriverNotify_iface);
}
static inline IDsCaptureDriverImpl *impl_from_IDsCaptureDriver(IDsCaptureDriver *iface)
{
return CONTAINING_RECORD(iface, IDsCaptureDriverImpl, IDsCaptureDriver_iface);
}
static inline IDsCaptureDriverBufferImpl *impl_from_IDsCaptureDriverBuffer(IDsCaptureDriverBuffer *iface)
{
return CONTAINING_RECORD(iface, IDsCaptureDriverBufferImpl, IDsCaptureDriverBuffer_iface);
}
static HRESULT IDsCaptureDriverPropertySetImpl_Create(
IDsCaptureDriverBufferImpl * dscdb,
IDsCaptureDriverPropertySetImpl **pdscdps);
static HRESULT IDsCaptureDriverNotifyImpl_Create(
IDsCaptureDriverBufferImpl * dsdcb,
IDsCaptureDriverNotifyImpl **pdscdn);
/*======================================================================*
* Low level DSOUND capture property set implementation *
*======================================================================*/
static HRESULT WINAPI IDsCaptureDriverPropertySetImpl_QueryInterface(
PIDSDRIVERPROPERTYSET iface,
REFIID riid,
LPVOID *ppobj)
{
IDsCaptureDriverPropertySetImpl *This = impl_from_IDsDriverPropertySet(iface);
TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppobj);
if ( IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IDsDriverPropertySet) ) {
IDsDriverPropertySet_AddRef(iface);
*ppobj = This;
return DS_OK;
}
FIXME( "Unknown IID %s\n", debugstr_guid( riid ) );
*ppobj = 0;
return E_NOINTERFACE;
}
static ULONG WINAPI IDsCaptureDriverPropertySetImpl_AddRef(
PIDSDRIVERPROPERTYSET iface)
{
IDsCaptureDriverPropertySetImpl *This = impl_from_IDsDriverPropertySet(iface);
ULONG refCount = InterlockedIncrement(&This->ref);
TRACE("(%p) ref was %d\n", This, refCount - 1);
return refCount;
}
static ULONG WINAPI IDsCaptureDriverPropertySetImpl_Release(
PIDSDRIVERPROPERTYSET iface)
{
IDsCaptureDriverPropertySetImpl *This = impl_from_IDsDriverPropertySet(iface);
ULONG refCount = InterlockedDecrement(&This->ref);
TRACE("(%p) ref was %d\n", This, refCount + 1);
if (!refCount) {
IDsCaptureDriverBuffer_Release((PIDSCDRIVERBUFFER)This->capture_buffer);
This->capture_buffer->property_set = NULL;
HeapFree(GetProcessHeap(),0,This);
TRACE("(%p) released\n",This);
}
return refCount;
}
static HRESULT WINAPI IDsCaptureDriverPropertySetImpl_Get(
PIDSDRIVERPROPERTYSET iface,
PDSPROPERTY pDsProperty,
LPVOID pPropertyParams,
ULONG cbPropertyParams,
LPVOID pPropertyData,
ULONG cbPropertyData,
PULONG pcbReturnedData )
{
IDsCaptureDriverPropertySetImpl *This = impl_from_IDsDriverPropertySet(iface);
FIXME("(%p,%p,%p,%x,%p,%x,%p)\n",This,pDsProperty,pPropertyParams,
cbPropertyParams,pPropertyData,cbPropertyData,pcbReturnedData);
return DSERR_UNSUPPORTED;
}
static HRESULT WINAPI IDsCaptureDriverPropertySetImpl_Set(
PIDSDRIVERPROPERTYSET iface,
PDSPROPERTY pDsProperty,
LPVOID pPropertyParams,
ULONG cbPropertyParams,
LPVOID pPropertyData,
ULONG cbPropertyData )
{
IDsCaptureDriverPropertySetImpl *This = impl_from_IDsDriverPropertySet(iface);
FIXME("(%p,%p,%p,%x,%p,%x)\n",This,pDsProperty,pPropertyParams,
cbPropertyParams,pPropertyData,cbPropertyData);
return DSERR_UNSUPPORTED;
}
static HRESULT WINAPI IDsCaptureDriverPropertySetImpl_QuerySupport(
PIDSDRIVERPROPERTYSET iface,
REFGUID PropertySetId,
ULONG PropertyId,
PULONG pSupport )
{
IDsCaptureDriverPropertySetImpl *This = impl_from_IDsDriverPropertySet(iface);
FIXME("(%p,%s,%x,%p)\n",This,debugstr_guid(PropertySetId),PropertyId,
pSupport);
return DSERR_UNSUPPORTED;
}
static const IDsDriverPropertySetVtbl dscdpsvt =
{
IDsCaptureDriverPropertySetImpl_QueryInterface,
IDsCaptureDriverPropertySetImpl_AddRef,
IDsCaptureDriverPropertySetImpl_Release,
IDsCaptureDriverPropertySetImpl_Get,
IDsCaptureDriverPropertySetImpl_Set,
IDsCaptureDriverPropertySetImpl_QuerySupport,
};
/*======================================================================*
* Low level DSOUND capture notify implementation *
*======================================================================*/
static HRESULT WINAPI IDsCaptureDriverNotifyImpl_QueryInterface(
PIDSDRIVERNOTIFY iface,
REFIID riid,
LPVOID *ppobj)
{
IDsCaptureDriverNotifyImpl *This = impl_from_IDsDriverNotify(iface);
TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppobj);
if ( IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IDsDriverNotify) ) {
IDsDriverNotify_AddRef(iface);
*ppobj = This;
return DS_OK;
}
FIXME( "Unknown IID %s\n", debugstr_guid( riid ) );
*ppobj = 0;
return E_NOINTERFACE;
}
static ULONG WINAPI IDsCaptureDriverNotifyImpl_AddRef(
PIDSDRIVERNOTIFY iface)
{
IDsCaptureDriverNotifyImpl *This = impl_from_IDsDriverNotify(iface);
ULONG refCount = InterlockedIncrement(&This->ref);
TRACE("(%p) ref was %d\n", This, refCount - 1);
return refCount;
}
static ULONG WINAPI IDsCaptureDriverNotifyImpl_Release(
PIDSDRIVERNOTIFY iface)
{
IDsCaptureDriverNotifyImpl *This = impl_from_IDsDriverNotify(iface);
ULONG refCount = InterlockedDecrement(&This->ref);
TRACE("(%p) ref was %d\n", This, refCount + 1);
if (!refCount) {
IDsCaptureDriverBuffer_Release((PIDSCDRIVERBUFFER)This->capture_buffer);
This->capture_buffer->notify = NULL;
HeapFree(GetProcessHeap(),0,This);
TRACE("(%p) released\n",This);
}
return refCount;
}
static HRESULT WINAPI IDsCaptureDriverNotifyImpl_SetNotificationPositions(
PIDSDRIVERNOTIFY iface,
DWORD howmuch,
LPCDSBPOSITIONNOTIFY notify)
{
IDsCaptureDriverNotifyImpl *This = impl_from_IDsDriverNotify(iface);
TRACE("(%p,0x%08x,%p)\n",This,howmuch,notify);
if (!notify) {
WARN("invalid parameter\n");
return DSERR_INVALIDPARAM;
}
if (TRACE_ON(dscapture)) {
DWORD i;
for (i=0;i<howmuch;i++)
TRACE("notify at %d to 0x%08lx\n",
notify[i].dwOffset,(DWORD_PTR)notify[i].hEventNotify);
}
/* Make an internal copy of the caller-supplied array.
* Replace the existing copy if one is already present. */
if (This->capture_buffer->notifies)
This->capture_buffer->notifies = HeapReAlloc(GetProcessHeap(),
HEAP_ZERO_MEMORY, This->capture_buffer->notifies,
howmuch * sizeof(DSBPOSITIONNOTIFY));
else
This->capture_buffer->notifies = HeapAlloc(GetProcessHeap(),
HEAP_ZERO_MEMORY, howmuch * sizeof(DSBPOSITIONNOTIFY));
memcpy(This->capture_buffer->notifies, notify,
howmuch * sizeof(DSBPOSITIONNOTIFY));
This->capture_buffer->nrofnotifies = howmuch;
return S_OK;
}
static const IDsDriverNotifyVtbl dscdnvt =
{
IDsCaptureDriverNotifyImpl_QueryInterface,
IDsCaptureDriverNotifyImpl_AddRef,
IDsCaptureDriverNotifyImpl_Release,
IDsCaptureDriverNotifyImpl_SetNotificationPositions,
};
/*======================================================================*
* Low level DSOUND capture implementation *
*======================================================================*/
static HRESULT DSCDB_MapBuffer(IDsCaptureDriverBufferImpl *dscdb)
{
if (!dscdb->mapping) {
dscdb->mapping = mmap(NULL, dscdb->maplen, PROT_READ, MAP_SHARED,
WInDev[dscdb->drv->wDevID].ossdev.fd, 0);
if (dscdb->mapping == (LPBYTE)-1) {
TRACE("(%p): Could not map sound device for direct access (%s)\n",
dscdb, strerror(errno));
return DSERR_GENERIC;
}
TRACE("(%p): sound device has been mapped for direct access at %p, "
"size=%d\n", dscdb, dscdb->mapping, dscdb->maplen);
}
return DS_OK;
}
static HRESULT DSCDB_UnmapBuffer(IDsCaptureDriverBufferImpl *dscdb)
{
if (dscdb->mapping) {
if (munmap(dscdb->mapping, dscdb->maplen) < 0) {
ERR("(%p): Could not unmap sound device (%s)\n",
dscdb, strerror(errno));
return DSERR_GENERIC;
}
dscdb->mapping = NULL;
TRACE("(%p): sound device unmapped\n", dscdb);
}
return DS_OK;
}
static HRESULT WINAPI IDsCaptureDriverBufferImpl_QueryInterface(
PIDSCDRIVERBUFFER iface,
REFIID riid,
LPVOID *ppobj)
{
IDsCaptureDriverBufferImpl *This = impl_from_IDsCaptureDriverBuffer(iface);
TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppobj);
*ppobj = 0;
if ( IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IDsCaptureDriverBuffer) ) {
IDsCaptureDriverBuffer_AddRef(iface);
*ppobj = This;
return DS_OK;
}
if ( IsEqualGUID( &IID_IDsDriverNotify, riid ) ) {
if (!This->notify)
IDsCaptureDriverNotifyImpl_Create(This, &(This->notify));
if (This->notify) {
IDsDriverNotify_AddRef((PIDSDRIVERNOTIFY)This->notify);
*ppobj = This->notify;
return DS_OK;
}
return E_FAIL;
}
if ( IsEqualGUID( &IID_IDsDriverPropertySet, riid ) ) {
if (!This->property_set)
IDsCaptureDriverPropertySetImpl_Create(This, &(This->property_set));
if (This->property_set) {
IDsDriverPropertySet_AddRef((PIDSDRIVERPROPERTYSET)This->property_set);
*ppobj = This->property_set;
return DS_OK;
}
return E_FAIL;
}
FIXME("(%p,%s,%p) unsupported GUID\n", This, debugstr_guid(riid), ppobj);
return DSERR_UNSUPPORTED;
}
static ULONG WINAPI IDsCaptureDriverBufferImpl_AddRef(PIDSCDRIVERBUFFER iface)
{
IDsCaptureDriverBufferImpl *This = impl_from_IDsCaptureDriverBuffer(iface);
ULONG refCount = InterlockedIncrement(&This->ref);
TRACE("(%p) ref was %d\n", This, refCount - 1);
return refCount;
}
static ULONG WINAPI IDsCaptureDriverBufferImpl_Release(PIDSCDRIVERBUFFER iface)
{
IDsCaptureDriverBufferImpl *This = impl_from_IDsCaptureDriverBuffer(iface);
ULONG refCount = InterlockedDecrement(&This->ref);
TRACE("(%p) ref was %d\n", This, refCount + 1);
if (!refCount) {
WINE_WAVEIN* wwi;
wwi = &WInDev[This->drv->wDevID];
if (This->hThread) {
int x = 0;
/* request thread termination */
write(This->pipe_fd[1], &x, sizeof(x));
/* wait for reply */
WaitForSingleObject(This->hExitEvent, INFINITE);
CloseHandle(This->hExitEvent);
}
close(This->pipe_fd[0]);
close(This->pipe_fd[1]);
DSCDB_UnmapBuffer(This);
OSS_CloseDevice(&wwi->ossdev);
wwi->state = WINE_WS_CLOSED;
wwi->dwFragmentSize = 0;
This->drv->capture_buffer = NULL;
HeapFree(GetProcessHeap(), 0, This->notifies);
HeapFree(GetProcessHeap(),0,This);
TRACE("(%p) released\n",This);
}
return refCount;
}
static HRESULT WINAPI IDsCaptureDriverBufferImpl_Lock(
PIDSCDRIVERBUFFER iface,
LPVOID* ppvAudio1,
LPDWORD pdwLen1,
LPVOID* ppvAudio2,
LPDWORD pdwLen2,
DWORD dwWritePosition,
DWORD dwWriteLen,
DWORD dwFlags)
{
IDsCaptureDriverBufferImpl *This = impl_from_IDsCaptureDriverBuffer(iface);
TRACE("(%p,%p,%p,%p,%p,%d,%d,0x%08x)\n",This,ppvAudio1,pdwLen1,
ppvAudio2,pdwLen2,dwWritePosition,dwWriteLen,dwFlags);
if (This->is_direct_map) {
if (ppvAudio1)
*ppvAudio1 = This->mapping + dwWritePosition;
if (dwWritePosition + dwWriteLen < This->maplen) {
if (pdwLen1)
*pdwLen1 = dwWriteLen;
if (ppvAudio2)
*ppvAudio2 = 0;
if (pdwLen2)
*pdwLen2 = 0;
} else {
if (pdwLen1)
*pdwLen1 = This->maplen - dwWritePosition;
if (ppvAudio2)
*ppvAudio2 = 0;
if (pdwLen2)
*pdwLen2 = dwWriteLen - (This->maplen - dwWritePosition);
}
} else {
if (ppvAudio1)
*ppvAudio1 = This->buffer + dwWritePosition;
if (dwWritePosition + dwWriteLen < This->buflen) {
if (pdwLen1)
*pdwLen1 = dwWriteLen;
if (ppvAudio2)
*ppvAudio2 = 0;
if (pdwLen2)
*pdwLen2 = 0;
} else {
if (pdwLen1)
*pdwLen1 = This->buflen - dwWritePosition;
if (ppvAudio2)
*ppvAudio2 = 0;
if (pdwLen2)
*pdwLen2 = dwWriteLen - (This->buflen - dwWritePosition);
}
}
return DS_OK;
}
static HRESULT WINAPI IDsCaptureDriverBufferImpl_Unlock(
PIDSCDRIVERBUFFER iface,
LPVOID pvAudio1,
DWORD dwLen1,
LPVOID pvAudio2,
DWORD dwLen2)
{
IDsCaptureDriverBufferImpl *This = impl_from_IDsCaptureDriverBuffer(iface);
TRACE("(%p,%p,%d,%p,%d)\n",This,pvAudio1,dwLen1,pvAudio2,dwLen2);
if (This->is_direct_map)
This->map_readpos = (This->map_readpos + dwLen1 + dwLen2) % This->maplen;
else
This->readptr = (This->readptr + dwLen1 + dwLen2) % This->buflen;
return DS_OK;
}
static HRESULT WINAPI IDsCaptureDriverBufferImpl_GetPosition(
PIDSCDRIVERBUFFER iface,
LPDWORD lpdwCapture,
LPDWORD lpdwRead)
{
IDsCaptureDriverBufferImpl *This = impl_from_IDsCaptureDriverBuffer(iface);
TRACE("(%p,%p,%p)\n",This,lpdwCapture,lpdwRead);
if (WInDev[This->drv->wDevID].state == WINE_WS_CLOSED) {
ERR("device not open, but accessing?\n");
return DSERR_UNINITIALIZED;
}
if (!This->is_capturing) {
if (lpdwCapture)
*lpdwCapture = 0;
if (lpdwRead)
*lpdwRead = 0;
}
if (This->is_direct_map) {
if (lpdwCapture)
*lpdwCapture = This->map_writepos;
if (lpdwRead) {
*lpdwRead = This->map_readpos;
}
} else {
if (lpdwCapture)
*lpdwCapture = This->writeptr;
if (lpdwRead)
*lpdwRead = This->readptr;
}
TRACE("capturepos=%d, readpos=%d\n", lpdwCapture?*lpdwCapture:0,
lpdwRead?*lpdwRead:0);
return DS_OK;
}
static HRESULT WINAPI IDsCaptureDriverBufferImpl_GetStatus(
PIDSCDRIVERBUFFER iface,
LPDWORD lpdwStatus)
{
IDsCaptureDriverBufferImpl *This = impl_from_IDsCaptureDriverBuffer(iface);
TRACE("(%p,%p)\n",This,lpdwStatus);
if (This->is_capturing) {
if (This->is_looping)
*lpdwStatus = DSCBSTATUS_CAPTURING | DSCBSTATUS_LOOPING;
else
*lpdwStatus = DSCBSTATUS_CAPTURING;
} else
*lpdwStatus = 0;
return DS_OK;
}
static HRESULT WINAPI IDsCaptureDriverBufferImpl_Start(
PIDSCDRIVERBUFFER iface,
DWORD dwFlags)
{
IDsCaptureDriverBufferImpl *This = impl_from_IDsCaptureDriverBuffer(iface);
int enable;
TRACE("(%p,%x)\n",This,dwFlags);
if (This->is_capturing)
return DS_OK;
if (dwFlags & DSCBSTART_LOOPING)
This->is_looping = TRUE;
WInDev[This->drv->wDevID].ossdev.bInputEnabled = TRUE;
enable = getEnables(&WInDev[This->drv->wDevID].ossdev);
if (ioctl(WInDev[This->drv->wDevID].ossdev.fd, SNDCTL_DSP_SETTRIGGER, &enable) < 0) {
if (errno == EINVAL) {
/* Don't give up yet. OSS trigger support is inconsistent. */
if (WInDev[This->drv->wDevID].ossdev.open_count == 1) {
/* try the opposite output enable */
if (WInDev[This->drv->wDevID].ossdev.bOutputEnabled == FALSE)
WInDev[This->drv->wDevID].ossdev.bOutputEnabled = TRUE;
else
WInDev[This->drv->wDevID].ossdev.bOutputEnabled = FALSE;
/* try it again */
enable = getEnables(&WInDev[This->drv->wDevID].ossdev);
if (ioctl(WInDev[This->drv->wDevID].ossdev.fd, SNDCTL_DSP_SETTRIGGER, &enable) >= 0) {
This->is_capturing = TRUE;
return DS_OK;
}
}
}
ERR("ioctl(%s, SNDCTL_DSP_SETTRIGGER) failed (%s)\n",
WInDev[This->drv->wDevID].ossdev.dev_name, strerror(errno));
WInDev[This->drv->wDevID].ossdev.bInputEnabled = FALSE;
return DSERR_GENERIC;
}
This->is_capturing = TRUE;
return DS_OK;
}
static HRESULT WINAPI IDsCaptureDriverBufferImpl_Stop(PIDSCDRIVERBUFFER iface)
{
IDsCaptureDriverBufferImpl *This = impl_from_IDsCaptureDriverBuffer(iface);
int enable;
TRACE("(%p)\n",This);
if (!This->is_capturing)
return DS_OK;
/* no more capturing */
WInDev[This->drv->wDevID].ossdev.bInputEnabled = FALSE;
enable = getEnables(&WInDev[This->drv->wDevID].ossdev);
if (ioctl(WInDev[This->drv->wDevID].ossdev.fd, SNDCTL_DSP_SETTRIGGER, &enable) < 0) {
ERR("ioctl(%s, SNDCTL_DSP_SETTRIGGER) failed (%s)\n",
WInDev[This->drv->wDevID].ossdev.dev_name, strerror(errno));
return DSERR_GENERIC;
}
/* send a final event if necessary */
if (This->nrofnotifies > 0) {
if (This->notifies[This->nrofnotifies - 1].dwOffset == DSBPN_OFFSETSTOP)
SetEvent(This->notifies[This->nrofnotifies - 1].hEventNotify);
}
This->is_capturing = FALSE;
This->is_looping = FALSE;
if (This->hThread) {
int x = 0;
write(This->pipe_fd[1], &x, sizeof(x));
WaitForSingleObject(This->hExitEvent, INFINITE);
CloseHandle(This->hExitEvent);
This->hExitEvent = INVALID_HANDLE_VALUE;
This->hThread = 0;
}
return DS_OK;
}
static HRESULT WINAPI IDsCaptureDriverBufferImpl_SetFormat(
PIDSCDRIVERBUFFER iface,
LPWAVEFORMATEX pwfx)
{
IDsCaptureDriverBufferImpl *This = impl_from_IDsCaptureDriverBuffer(iface);
FIXME("(%p): stub!\n",This);
return DSERR_UNSUPPORTED;
}
static const IDsCaptureDriverBufferVtbl dscdbvt =
{
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 = impl_from_IDsCaptureDriver(iface);
TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppobj);
if ( IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IDsCaptureDriver) ) {
IDsCaptureDriver_AddRef(iface);
*ppobj = This;
return DS_OK;
}
FIXME( "Unknown IID %s\n", debugstr_guid( riid ) );
*ppobj = 0;
return E_NOINTERFACE;
}
static ULONG WINAPI IDsCaptureDriverImpl_AddRef(PIDSCDRIVER iface)
{
IDsCaptureDriverImpl *This = impl_from_IDsCaptureDriver(iface);
ULONG refCount = InterlockedIncrement(&This->ref);
TRACE("(%p) ref was %d\n", This, refCount - 1);
return refCount;
}
static ULONG WINAPI IDsCaptureDriverImpl_Release(PIDSCDRIVER iface)
{
IDsCaptureDriverImpl *This = impl_from_IDsCaptureDriver(iface);
ULONG refCount = InterlockedDecrement(&This->ref);
TRACE("(%p) ref was %d\n", This, refCount + 1);
if (!refCount) {
HeapFree(GetProcessHeap(),0,This);
TRACE("(%p) released\n",This);
}
return refCount;
}
static HRESULT WINAPI IDsCaptureDriverImpl_GetDriverDesc(
PIDSCDRIVER iface,
PDSDRIVERDESC pDesc)
{
IDsCaptureDriverImpl *This = impl_from_IDsCaptureDriver(iface);
TRACE("(%p,%p)\n",This,pDesc);
if (!pDesc) {
TRACE("invalid parameter\n");
return DSERR_INVALIDPARAM;
}
/* copy version from driver */
*pDesc = WInDev[This->wDevID].ossdev.ds_desc;
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 = 0;
pDesc->dwMemEndAddress = 0;
pDesc->dwMemAllocExtra = 0;
pDesc->pvReserved1 = NULL;
pDesc->pvReserved2 = NULL;
return DS_OK;
}
static HRESULT WINAPI IDsCaptureDriverImpl_Open(PIDSCDRIVER iface)
{
IDsCaptureDriverImpl *This = impl_from_IDsCaptureDriver(iface);
TRACE("(%p)\n",This);
return DS_OK;
}
static HRESULT WINAPI IDsCaptureDriverImpl_Close(PIDSCDRIVER iface)
{
IDsCaptureDriverImpl *This = impl_from_IDsCaptureDriver(iface);
TRACE("(%p)\n",This);
if (This->capture_buffer) {
ERR("problem with DirectSound: capture buffer not released\n");
return DSERR_GENERIC;
}
return DS_OK;
}
static HRESULT WINAPI IDsCaptureDriverImpl_GetCaps(
PIDSCDRIVER iface,
PDSCDRIVERCAPS pCaps)
{
IDsCaptureDriverImpl *This = impl_from_IDsCaptureDriver(iface);
TRACE("(%p,%p)\n",This,pCaps);
*pCaps = WInDev[This->wDevID].ossdev.dsc_caps;
return DS_OK;
}
static void DSCDB_CheckEvent(
IDsCaptureDriverBufferImpl *dscb,
DWORD writepos,
DWORD len,
DWORD buflen)
{
LPDSBPOSITIONNOTIFY event = dscb->notifies + dscb->notify_index;
DWORD offset = event->dwOffset;
TRACE("(%p,%d,%d,%d)\n", dscb, writepos, len, buflen);
TRACE("(%p) buflen = %d, writeptr = %d\n",
dscb, dscb->buflen, dscb->writeptr);
TRACE("checking %d, position %d, event = %p\n",
dscb->notify_index, offset, event->hEventNotify);
if ((writepos + len) > offset) {
TRACE("signalled event %p (%d) %d\n",
event->hEventNotify, dscb->notify_index, offset);
SetEvent(event->hEventNotify);
dscb->notify_index = (dscb->notify_index + 1) % dscb->nrofnotifies;
return;
} else if ((writepos + len) > buflen) {
writepos = writepos + len - buflen;
if ((writepos + len) > offset) {
TRACE("signalled event %p (%d) %d\n",
event->hEventNotify, dscb->notify_index, offset);
SetEvent(event->hEventNotify);
dscb->notify_index = (dscb->notify_index + 1) % dscb->nrofnotifies;
return;
}
}
return;
}
/* FIXME: using memcpy can cause strange crashes so use this fake one */
static void * my_memcpy(void * dst, const void * src, int length)
{
int i;
for (i = 0; i < length; i++)
((char *)dst)[i] = ((const char *)src)[i];
return dst;
}
static DWORD CALLBACK DSCDB_Thread(LPVOID lpParameter)
{
IDsCaptureDriverBufferImpl *This = lpParameter;
struct pollfd poll_list[2];
int retval;
DWORD offset = 0;
DWORD map_offset = 0;
TRACE("(%p)\n", lpParameter);
poll_list[0].fd = This->fd; /* data available */
poll_list[1].fd = This->pipe_fd[0]; /* message from parent process */
poll_list[0].events = POLLIN;
poll_list[1].events = POLLIN;
/* let other process know we are running */
SetEvent(This->hStartUpEvent);
while (1) {
/* wait for something to happen */
retval = poll(poll_list,(unsigned long)2,-1);
/* Retval will always be greater than 0 or -1 in this case.
* Since we're doing it while blocking
*/
if (retval < 0) {
ERR("Error while polling: %s\n",strerror(errno));
continue;
}
/* check for exit command */
if ((poll_list[1].revents & POLLIN) == POLLIN) {
TRACE("(%p) done\n", lpParameter);
/* acknowledge command and exit */
SetEvent(This->hExitEvent);
ExitThread(0);
return 0;
}
/* check for data */
if ((poll_list[0].revents & POLLIN) == POLLIN) {
count_info info;
int fragsize, first, second;
/* get the current DMA position */
if (ioctl(This->fd, SNDCTL_DSP_GETIPTR, &info) < 0) {
ERR("ioctl(%s, SNDCTL_DSP_GETIPTR) failed (%s)\n",
WInDev[This->drv->wDevID].ossdev.dev_name, strerror(errno));
return DSERR_GENERIC;
}
if (This->is_direct_map) {
offset = This->map_writepos;
This->map_writepos = info.ptr;
if (info.ptr < offset)
fragsize = info.ptr + This->maplen - offset;
else
fragsize = info.ptr - offset;
DSCDB_CheckEvent(This, offset, fragsize, This->maplen);
} else {
map_offset = This->map_writepos;
offset = This->writeptr;
/* test for mmap buffer wrap */
if (info.ptr < map_offset) {
/* mmap buffer wrapped */
fragsize = info.ptr + This->maplen - map_offset;
/* check for user buffer wrap */
if ((offset + fragsize) > This->buflen) {
/* both buffers wrapped
* figure out which wrapped first
*/
if ((This->maplen - map_offset) > (This->buflen - offset)) {
/* user buffer wrapped first */
first = This->buflen - offset;
second = (This->maplen - map_offset) - first;
my_memcpy(This->buffer + offset, This->mapping + map_offset, first);
my_memcpy(This->buffer, This->mapping + map_offset + first, second);
my_memcpy(This->buffer + second, This->mapping, fragsize - (first + second));
} else {
/* mmap buffer wrapped first */
first = This->maplen - map_offset;
second = (This->buflen - offset) - first;
my_memcpy(This->buffer + offset, This->mapping + map_offset, first);
my_memcpy(This->buffer + offset + first, This->mapping, second);
my_memcpy(This->buffer, This->mapping + second, fragsize - (first + second));
}
} else {
/* only mmap buffer wrapped */
first = This->maplen - map_offset;
my_memcpy(This->buffer + offset, This->mapping + map_offset, first);
my_memcpy(This->buffer + offset + first, This->mapping, fragsize - first);
}
} else {
/* mmap buffer didn't wrap */
fragsize = info.ptr - map_offset;
/* check for user buffer wrap */
if ((offset + fragsize) > This->buflen) {
first = This->buflen - offset;
my_memcpy(This->buffer + offset, This->mapping + map_offset, first);
my_memcpy(This->buffer, This->mapping + map_offset + first, fragsize - first);
} else
my_memcpy(This->buffer + offset, This->mapping + map_offset, fragsize);
}
This->map_writepos = info.ptr;
This->writeptr = (This->writeptr + fragsize) % This->buflen;
DSCDB_CheckEvent(This, offset, fragsize, This->buflen);
}
}
}
}
static HRESULT WINAPI IDsCaptureDriverImpl_CreateCaptureBuffer(
PIDSCDRIVER iface,
LPWAVEFORMATEX pwfx,
DWORD dwFlags,
DWORD dwCardAddress,
LPDWORD pdwcbBufferSize,
LPBYTE *ppbBuffer,
LPVOID *ppvObj)
{
IDsCaptureDriverImpl *This = impl_from_IDsCaptureDriver(iface);
IDsCaptureDriverBufferImpl** ippdscdb = (IDsCaptureDriverBufferImpl**)ppvObj;
HRESULT err;
audio_buf_info info;
int audio_fragment, fsize, shift, ret;
BOOL bNewBuffer = FALSE;
WINE_WAVEIN* wwi;
TRACE("(%p,%p,%x,%x,%p,%p,%p)\n",This,pwfx,dwFlags,dwCardAddress,
pdwcbBufferSize,ppbBuffer,ppvObj);
if (This->capture_buffer) {
TRACE("already allocated\n");
return DSERR_ALLOCATED;
}
/* must be given a buffer size */
if (pdwcbBufferSize == NULL || *pdwcbBufferSize == 0) {
TRACE("invalid parameter: pdwcbBufferSize\n");
return DSERR_INVALIDPARAM;
}
/* must be given a buffer pointer */
if (ppbBuffer == NULL) {
TRACE("invalid parameter: ppbBuffer\n");
return DSERR_INVALIDPARAM;
}
/* may or may not be given a buffer */
if (*ppbBuffer == NULL) {
TRACE("creating buffer\n");
bNewBuffer = TRUE; /* not given a buffer so create one */
} else
TRACE("using supplied buffer\n");
*ippdscdb = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDsCaptureDriverBufferImpl));
if (*ippdscdb == NULL) {
TRACE("out of memory\n");
return DSERR_OUTOFMEMORY;
}
(*ippdscdb)->IDsCaptureDriverBuffer_iface.lpVtbl = &dscdbvt;
(*ippdscdb)->ref = 1;
(*ippdscdb)->drv = This;
(*ippdscdb)->notify = NULL;
(*ippdscdb)->notify_index = 0;
(*ippdscdb)->notifies = NULL;
(*ippdscdb)->nrofnotifies = 0;
(*ippdscdb)->property_set = NULL;
(*ippdscdb)->is_capturing = FALSE;
(*ippdscdb)->is_looping = FALSE;
(*ippdscdb)->wfx = *pwfx;
(*ippdscdb)->buflen = *pdwcbBufferSize;
if (bNewBuffer)
(*ippdscdb)->buffer = NULL;
else
(*ippdscdb)->buffer = *ppbBuffer;
wwi = &WInDev[This->wDevID];
if (wwi->state == WINE_WS_CLOSED) {
unsigned int frag_size;
if (wwi->ossdev.open_count > 0) {
/* opened already so use existing fragment size */
audio_fragment = wwi->ossdev.audio_fragment;
} else {
/* calculate a fragment size */
unsigned int mask = 0xffffffff;
/* calculate largest fragment size less than 10 ms. */
fsize = pwfx->nAvgBytesPerSec / 100; /* 10 ms chunk */
shift = 0;
while ((1 << shift) <= fsize)
shift++;
shift--;
fsize = 1 << shift;
TRACE("shift = %d, fragment size = %d\n", shift, fsize);
TRACE("BufferSize=%d(%08x)\n", *pdwcbBufferSize, *pdwcbBufferSize);
/* See if we can directly map the buffer first.
* (buffer length is multiple of a power of 2)
*/
mask = (mask >> (32 - shift));
TRACE("mask=%08x\n", mask);
if (*pdwcbBufferSize & mask) {
/* no so try a smaller fragment size greater than 1 ms */
int new_shift = shift - 1;
int min_shift = 0;
int min_fsize = pwfx->nAvgBytesPerSec / 1000;
BOOL found_one = FALSE;
while ((1 << min_shift) <= min_fsize)
min_shift++;
min_shift--;
while (new_shift > min_shift) {
if (*pdwcbBufferSize & (-1 >> (32 - new_shift))) {
new_shift--;
continue;
} else {
found_one = TRUE;
break;
}
}
if (found_one) {
/* found a smaller one that will work */
audio_fragment = ((*pdwcbBufferSize >> new_shift) << 16) | new_shift;
(*ippdscdb)->is_direct_map = TRUE;
TRACE("new shift = %d, fragment size = %d\n",
new_shift, 1 << (audio_fragment & 0xffff));
} else {
/* buffer can't be direct mapped */
audio_fragment = 0x00100000 + shift; /* 16 fragments of 2^shift */
(*ippdscdb)->is_direct_map = FALSE;
}
} else {
/* good fragment size */
audio_fragment = ((*pdwcbBufferSize >> shift) << 16) | shift;
(*ippdscdb)->is_direct_map = TRUE;
}
}
frag_size = 1 << (audio_fragment & 0xffff);
TRACE("is_direct_map = %s\n", (*ippdscdb)->is_direct_map ? "TRUE" : "FALSE");
TRACE("requesting %d %d byte fragments (%d bytes) (%d ms/fragment)\n",
audio_fragment >> 16, frag_size, frag_size * (audio_fragment >> 16),
(frag_size * 1000) / pwfx->nAvgBytesPerSec);
ret = OSS_OpenDevice(&wwi->ossdev, O_RDWR, &audio_fragment, 1,
pwfx->nSamplesPerSec,
(pwfx->nChannels > 1) ? 1 : 0,
(pwfx->wBitsPerSample == 16)
? AFMT_S16_LE : AFMT_U8);
if (ret != 0) {
WARN("OSS_OpenDevice failed\n");
HeapFree(GetProcessHeap(),0,*ippdscdb);
*ippdscdb = NULL;
return DSERR_GENERIC;
}
wwi->state = WINE_WS_STOPPED;
/* find out what fragment and buffer sizes OSS gave us */
if (ioctl(wwi->ossdev.fd, SNDCTL_DSP_GETISPACE, &info) < 0) {
ERR("ioctl(%s, SNDCTL_DSP_GETISPACE) failed (%s)\n",
wwi->ossdev.dev_name, strerror(errno));
OSS_CloseDevice(&wwi->ossdev);
wwi->state = WINE_WS_CLOSED;
HeapFree(GetProcessHeap(),0,*ippdscdb);
*ippdscdb = NULL;
return DSERR_GENERIC;
}
TRACE("got %d %d byte fragments (%d bytes) (%d ms/fragment)\n",
info.fragstotal, info.fragsize, info.fragstotal * info.fragsize,
info.fragsize * 1000 / pwfx->nAvgBytesPerSec);
wwi->dwTotalRecorded = 0;
memcpy(&wwi->waveFormat, pwfx, sizeof(PCMWAVEFORMAT));
wwi->dwFragmentSize = info.fragsize;
/* make sure we got what we asked for */
if ((*ippdscdb)->buflen != info.fragstotal * info.fragsize) {
TRACE("Couldn't create requested buffer\n");
if ((*ippdscdb)->is_direct_map) {
(*ippdscdb)->is_direct_map = FALSE;
TRACE("is_direct_map = FALSE\n");
}
} else if (info.fragsize != frag_size) {
TRACE("same buffer length but different fragment size\n");
}
}
(*ippdscdb)->fd = WInDev[This->wDevID].ossdev.fd;
if (pipe((*ippdscdb)->pipe_fd) < 0) {
TRACE("pipe() failed (%s)\n", strerror(errno));
OSS_CloseDevice(&wwi->ossdev);
wwi->state = WINE_WS_CLOSED;
HeapFree(GetProcessHeap(),0,*ippdscdb);
*ippdscdb = NULL;
return DSERR_GENERIC;
}
/* check how big the DMA buffer is now */
if (ioctl(wwi->ossdev.fd, SNDCTL_DSP_GETISPACE, &info) < 0) {
ERR("ioctl(%s, SNDCTL_DSP_GETISPACE) failed (%s)\n",
wwi->ossdev.dev_name, strerror(errno));
OSS_CloseDevice(&wwi->ossdev);
wwi->state = WINE_WS_CLOSED;
close((*ippdscdb)->pipe_fd[0]);
close((*ippdscdb)->pipe_fd[1]);
HeapFree(GetProcessHeap(),0,*ippdscdb);
*ippdscdb = NULL;
return DSERR_GENERIC;
}
(*ippdscdb)->maplen = info.fragstotal * info.fragsize;
(*ippdscdb)->fragsize = info.fragsize;
(*ippdscdb)->map_writepos = 0;
(*ippdscdb)->map_readpos = 0;
/* map the DMA buffer */
err = DSCDB_MapBuffer(*ippdscdb);
if (err != DS_OK) {
OSS_CloseDevice(&wwi->ossdev);
wwi->state = WINE_WS_CLOSED;
close((*ippdscdb)->pipe_fd[0]);
close((*ippdscdb)->pipe_fd[1]);
HeapFree(GetProcessHeap(),0,*ippdscdb);
*ippdscdb = NULL;
return err;
}
/* create the buffer if necessary */
if (!(*ippdscdb)->buffer)
(*ippdscdb)->buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,(*ippdscdb)->buflen);
if ((*ippdscdb)->buffer == NULL) {
OSS_CloseDevice(&wwi->ossdev);
wwi->state = WINE_WS_CLOSED;
close((*ippdscdb)->pipe_fd[0]);
close((*ippdscdb)->pipe_fd[1]);
HeapFree(GetProcessHeap(),0,*ippdscdb);
*ippdscdb = NULL;
return DSERR_OUTOFMEMORY;
}
This->capture_buffer = *ippdscdb;
(*ippdscdb)->hStartUpEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
(*ippdscdb)->hExitEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
(*ippdscdb)->hThread = CreateThread(NULL, 0, DSCDB_Thread, *ippdscdb, 0, &((*ippdscdb)->dwThreadID));
WaitForSingleObject((*ippdscdb)->hStartUpEvent, INFINITE);
CloseHandle((*ippdscdb)->hStartUpEvent);
(*ippdscdb)->hStartUpEvent = INVALID_HANDLE_VALUE;
return DS_OK;
}
static const IDsCaptureDriverVtbl dscdvt =
{
IDsCaptureDriverImpl_QueryInterface,
IDsCaptureDriverImpl_AddRef,
IDsCaptureDriverImpl_Release,
IDsCaptureDriverImpl_GetDriverDesc,
IDsCaptureDriverImpl_Open,
IDsCaptureDriverImpl_Close,
IDsCaptureDriverImpl_GetCaps,
IDsCaptureDriverImpl_CreateCaptureBuffer
};
static HRESULT IDsCaptureDriverPropertySetImpl_Create(
IDsCaptureDriverBufferImpl * dscdb,
IDsCaptureDriverPropertySetImpl **pdscdps)
{
IDsCaptureDriverPropertySetImpl * dscdps;
TRACE("(%p,%p)\n",dscdb,pdscdps);
dscdps = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*dscdps));
if (dscdps == NULL) {
WARN("out of memory\n");
return DSERR_OUTOFMEMORY;
}
dscdps->ref = 0;
dscdps->IDsDriverPropertySet_iface.lpVtbl = &dscdpsvt;
dscdps->capture_buffer = dscdb;
dscdb->property_set = dscdps;
IDsCaptureDriverBuffer_AddRef((PIDSCDRIVER)dscdb);
*pdscdps = dscdps;
return DS_OK;
}
static HRESULT IDsCaptureDriverNotifyImpl_Create(
IDsCaptureDriverBufferImpl * dscdb,
IDsCaptureDriverNotifyImpl **pdscdn)
{
IDsCaptureDriverNotifyImpl * dscdn;
TRACE("(%p,%p)\n",dscdb,pdscdn);
dscdn = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*dscdn));
if (dscdn == NULL) {
WARN("out of memory\n");
return DSERR_OUTOFMEMORY;
}
dscdn->ref = 0;
dscdn->IDsDriverNotify_iface.lpVtbl = &dscdnvt;
dscdn->capture_buffer = dscdb;
dscdb->notify = dscdn;
IDsCaptureDriverBuffer_AddRef((PIDSCDRIVER)dscdb);
*pdscdn = dscdn;
return DS_OK;
}
DWORD widDsCreate(UINT wDevID, PIDSCDRIVER* drv)
{
IDsCaptureDriverImpl** idrv = (IDsCaptureDriverImpl**)drv;
TRACE("(%d,%p)\n",wDevID,drv);
/* the HAL isn't much better than the HEL if we can't do mmap() */
if (!(WInDev[wDevID].ossdev.in_caps_support & WAVECAPS_DIRECTSOUND)) {
ERR("DirectSoundCapture flag not set\n");
MESSAGE("This sound card's driver does not support direct access\n");
MESSAGE("The (slower) DirectSound HEL mode will be used instead.\n");
return MMSYSERR_NOTSUPPORTED;
}
*idrv = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDsCaptureDriverImpl));
if (!*idrv)
return MMSYSERR_NOMEM;
(*idrv)->IDsCaptureDriver_iface.lpVtbl = &dscdvt;
(*idrv)->ref = 1;
(*idrv)->wDevID = wDevID;
(*idrv)->capture_buffer = NULL;
return MMSYSERR_NOERROR;
}
DWORD widDsDesc(UINT wDevID, PDSDRIVERDESC desc)
{
memcpy(desc, &(WInDev[wDevID].ossdev.ds_desc), sizeof(DSDRIVERDESC));
return MMSYSERR_NOERROR;
}
Reference in New Issue View Git Blame Copy Permalink