Sweden-Number/dlls/dsound/dsound_main.c

666 lines
20 KiB
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
*/
/*
* Most thread locking is complete. There may be a few race
* conditions still lurking.
*
* Tested with a Soundblaster clone, a Gravis UltraSound Classic,
* and a Turtle Beach Tropez+.
*
* TODO:
* Implement SetCooperativeLevel properly (need to address focus issues)
* Implement DirectSound3DBuffers (stubs in place)
* Use hardware 3D support if available
* Add critical section locking inside Release and AddRef methods
* Handle static buffers - put those in hardware, non-static not in hardware
* Hardware DuplicateSoundBuffer
* Proper volume calculation, and setting volume in HEL primary buffer
* Optimize WINMM and negotiate fragment size, decrease DS_HEL_MARGIN
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <stdarg.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/fcntl.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <math.h>
#define NONAMELESSSTRUCT
#define NONAMELESSUNION
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "winuser.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
#include "mmsystem.h"
#include "winternl.h"
#include "mmddk.h"
#include "wine/windef16.h"
#include "wine/winbase16.h"
#include "wine/debug.h"
#include "dsound.h"
#include "dsdriver.h"
#include "dsound_private.h"
#include "dsconf.h"
WINE_DEFAULT_DEBUG_CHANNEL(dsound);
/* these are eligible for tuning... they must be high on slow machines... */
/* some stuff may get more responsive with lower values though... */
#define DS_EMULDRIVER 0 /* some games (Quake 2, UT) refuse to accept
emulated dsound devices. set to 0 ! */
#define DS_HEL_MARGIN 5 /* HEL only: number of waveOut fragments ahead to mix in new buffers
* (keep this close or equal to DS_HEL_QUEUE for best results) */
#define DS_HEL_QUEUE 5 /* HEL only: number of waveOut fragments ahead to queue to driver
* (this will affect HEL sound reliability and latency) */
#define DS_SND_QUEUE_MAX 28 /* max number of fragments to prebuffer */
#define DS_SND_QUEUE_MIN 12 /* min number of fragments to prebuffer */
IDirectSoundImpl* dsound = NULL;
HRESULT mmErr(UINT err)
{
switch(err) {
case MMSYSERR_NOERROR:
return DS_OK;
case MMSYSERR_ALLOCATED:
return DSERR_ALLOCATED;
case MMSYSERR_ERROR:
case MMSYSERR_INVALHANDLE:
case WAVERR_STILLPLAYING:
return DSERR_GENERIC; /* FIXME */
case MMSYSERR_NODRIVER:
return DSERR_NODRIVER;
case MMSYSERR_NOMEM:
return DSERR_OUTOFMEMORY;
case MMSYSERR_INVALPARAM:
case WAVERR_BADFORMAT:
case WAVERR_UNPREPARED:
return DSERR_INVALIDPARAM;
case MMSYSERR_NOTSUPPORTED:
return DSERR_UNSUPPORTED;
default:
FIXME("Unknown MMSYS error %d\n",err);
return DSERR_GENERIC;
}
}
int ds_emuldriver = DS_EMULDRIVER;
int ds_hel_margin = DS_HEL_MARGIN;
int ds_hel_queue = DS_HEL_QUEUE;
int ds_snd_queue_max = DS_SND_QUEUE_MAX;
int ds_snd_queue_min = DS_SND_QUEUE_MIN;
int ds_hw_accel = DS_HW_ACCEL_FULL;
int ds_default_playback = 0;
int ds_default_capture = 0;
/*
* Get a config key from either the app-specific or the default config
*/
inline static DWORD get_config_key( HKEY defkey, HKEY appkey, const char *name,
char *buffer, DWORD size )
{
if (appkey && !RegQueryValueExA( appkey, name, 0, NULL, buffer, &size )) return 0;
return RegQueryValueExA( defkey, name, 0, NULL, buffer, &size );
}
/*
* Setup the dsound options.
*/
void setup_dsound_options(void)
{
char buffer[MAX_PATH+1];
HKEY hkey, appkey = 0;
DWORD len;
buffer[MAX_PATH]='\0';
if (RegCreateKeyExA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\dsound", 0, NULL,
REG_OPTION_VOLATILE, KEY_ALL_ACCESS, NULL, &hkey, NULL ))
{
ERR("Cannot create config registry key\n" );
ExitProcess(1);
}
len = GetModuleFileNameA( 0, buffer, MAX_PATH );
if (len && len < MAX_PATH)
{
HKEY tmpkey;
if (!RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\AppDefaults", &tmpkey ))
{
char appname[MAX_PATH+16];
char *p = strrchr( buffer, '\\' );
if (p!=NULL) {
appname[MAX_PATH]='\0';
strncpy(appname,p+1,MAX_PATH);
strcat(appname,"\\dsound");
TRACE("appname = [%s] \n",appname);
if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
RegCloseKey( tmpkey );
}
}
}
/* get options */
if (!get_config_key( hkey, appkey, "EmulDriver", buffer, MAX_PATH ))
ds_emuldriver = strcmp(buffer, "N");
if (!get_config_key( hkey, appkey, "HELmargin", buffer, MAX_PATH ))
ds_hel_margin = atoi(buffer);
if (!get_config_key( hkey, appkey, "HELqueue", buffer, MAX_PATH ))
ds_hel_queue = atoi(buffer);
if (!get_config_key( hkey, appkey, "SndQueueMax", buffer, MAX_PATH ))
ds_snd_queue_max = atoi(buffer);
if (!get_config_key( hkey, appkey, "SndQueueMin", buffer, MAX_PATH ))
ds_snd_queue_min = atoi(buffer);
if (!get_config_key( hkey, appkey, "HardwareAcceleration", buffer, MAX_PATH )) {
if (strcmp(buffer, "Full") == 0)
ds_hw_accel = DS_HW_ACCEL_FULL;
else if (strcmp(buffer, "Standard") == 0)
ds_hw_accel = DS_HW_ACCEL_STANDARD;
else if (strcmp(buffer, "Basic") == 0)
ds_hw_accel = DS_HW_ACCEL_BASIC;
else if (strcmp(buffer, "Emulation") == 0)
ds_hw_accel = DS_HW_ACCEL_EMULATION;
}
if (!get_config_key( hkey, appkey, "DefaultPlayback", buffer, MAX_PATH ))
ds_default_playback = atoi(buffer);
if (!get_config_key( hkey, appkey, "DefaultCapture", buffer, MAX_PATH ))
ds_default_capture = atoi(buffer);
if (appkey) RegCloseKey( appkey );
RegCloseKey( hkey );
if (ds_emuldriver != DS_EMULDRIVER )
WARN("ds_emuldriver = %d (default=%d)\n",ds_emuldriver, DS_EMULDRIVER);
if (ds_hel_margin != DS_HEL_MARGIN )
WARN("ds_hel_margin = %d (default=%d)\n",ds_hel_margin, DS_HEL_MARGIN );
if (ds_hel_queue != DS_HEL_QUEUE )
WARN("ds_hel_queue = %d (default=%d)\n",ds_hel_queue, DS_HEL_QUEUE );
if (ds_snd_queue_max != DS_SND_QUEUE_MAX)
WARN("ds_snd_queue_max = %d (default=%d)\n",ds_snd_queue_max ,DS_SND_QUEUE_MAX);
if (ds_snd_queue_min != DS_SND_QUEUE_MIN)
WARN("ds_snd_queue_min = %d (default=%d)\n",ds_snd_queue_min ,DS_SND_QUEUE_MIN);
if (ds_hw_accel != DS_HW_ACCEL_FULL)
WARN("ds_hw_accel = %s (default=Full)\n",
ds_hw_accel==DS_HW_ACCEL_FULL ? "Full" :
ds_hw_accel==DS_HW_ACCEL_STANDARD ? "Standard" :
ds_hw_accel==DS_HW_ACCEL_BASIC ? "Basic" :
ds_hw_accel==DS_HW_ACCEL_EMULATION ? "Emulation" :
"Unknown");
if (ds_default_playback != 0)
WARN("ds_default_playback = %d (default=0)\n",ds_default_playback);
if (ds_default_capture != 0)
WARN("ds_default_capture = %d (default=0)\n",ds_default_playback);
}
/***************************************************************************
* GetDeviceID [DSOUND.9]
*
* Retrieves unique identifier of default device specified
*
* PARAMS
* pGuidSrc [I] Address of device GUID.
* pGuidDest [O] Address to receive unique device GUID.
*
* RETURNS
* Success: DS_OK
* Failure: DSERR_INVALIDPARAM
*
* NOTES
* pGuidSrc is a valid device GUID or DSDEVID_DefaultPlayback,
* DSDEVID_DefaultCapture, DSDEVID_DefaultVoicePlayback, or
* DSDEVID_DefaultVoiceCapture.
* Returns pGuidSrc if pGuidSrc is a valid device or the device
* GUID for the specified constants.
*/
HRESULT WINAPI GetDeviceID(LPCGUID pGuidSrc, LPGUID pGuidDest)
{
TRACE("(%p,%p)\n",pGuidSrc,pGuidDest);
if ( pGuidSrc == NULL) {
WARN("invalid parameter: pGuidSrc == NULL\n");
return DSERR_INVALIDPARAM;
}
if ( pGuidDest == NULL ) {
WARN("invalid parameter: pGuidDest == NULL\n");
return DSERR_INVALIDPARAM;
}
if ( IsEqualGUID( &DSDEVID_DefaultPlayback, pGuidSrc ) ||
IsEqualGUID( &DSDEVID_DefaultVoicePlayback, pGuidSrc ) ) {
GUID guid;
int err = mmErr(waveOutMessage((HWAVEOUT)ds_default_playback,DRV_QUERYDSOUNDGUID,(DWORD)&guid,0));
if (err == DS_OK) {
memcpy(pGuidDest, &guid, sizeof(GUID));
return DS_OK;
}
}
if ( IsEqualGUID( &DSDEVID_DefaultCapture, pGuidSrc ) ||
IsEqualGUID( &DSDEVID_DefaultVoiceCapture, pGuidSrc ) ) {
GUID guid;
int err = mmErr(waveInMessage((HWAVEIN)ds_default_capture,DRV_QUERYDSOUNDGUID,(DWORD)&guid,0));
if (err == DS_OK) {
memcpy(pGuidDest, &guid, sizeof(GUID));
return DS_OK;
}
}
memcpy(pGuidDest, pGuidSrc, sizeof(GUID));
return DS_OK;
}
/***************************************************************************
* DirectSoundEnumerateA [DSOUND.2]
*
* Enumerate all DirectSound drivers installed in the system
*
* PARAMS
* lpDSEnumCallback [I] Address of callback function.
* lpContext [I] Address of user defined context passed to callback function.
*
* RETURNS
* Success: DS_OK
* Failure: DSERR_INVALIDPARAM
*/
HRESULT WINAPI DirectSoundEnumerateA(
LPDSENUMCALLBACKA lpDSEnumCallback,
LPVOID lpContext)
{
unsigned devs, wod;
DSDRIVERDESC desc;
GUID guid;
int err;
TRACE("lpDSEnumCallback = %p, lpContext = %p\n",
lpDSEnumCallback, lpContext);
if (lpDSEnumCallback == NULL) {
WARN("invalid parameter: lpDSEnumCallback == NULL\n");
return DSERR_INVALIDPARAM;
}
devs = waveOutGetNumDevs();
if (devs > 0) {
if (GetDeviceID(&DSDEVID_DefaultPlayback, &guid) == DS_OK) {
GUID temp;
for (wod = 0; wod < devs; ++wod) {
err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDGUID,(DWORD)&temp,0));
if (err == DS_OK) {
if (IsEqualGUID( &guid, &temp ) ) {
err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD)&desc,0));
if (err == DS_OK) {
TRACE("calling lpDSEnumCallback(NULL,\"%s\",\"%s\",%p)\n",
"Primary Sound Driver",desc.szDrvName,lpContext);
if (lpDSEnumCallback(NULL, "Primary Sound Driver", desc.szDrvName, lpContext) == FALSE)
return DS_OK;
}
}
}
}
}
}
for (wod = 0; wod < devs; ++wod) {
err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD)&desc,0));
if (err == DS_OK) {
err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDGUID,(DWORD)&guid,0));
if (err == DS_OK) {
TRACE("calling lpDSEnumCallback(%s,\"%s\",\"%s\",%p)\n",
debugstr_guid(&guid),desc.szDesc,desc.szDrvName,lpContext);
if (lpDSEnumCallback(&guid, desc.szDesc, desc.szDrvName, lpContext) == FALSE)
return DS_OK;
}
}
}
return DS_OK;
}
/***************************************************************************
* DirectSoundEnumerateW [DSOUND.3]
*
* Enumerate all DirectSound drivers installed in the system
*
* PARAMS
* lpDSEnumCallback [I] Address of callback function.
* lpContext [I] Address of user defined context passed to callback function.
*
* RETURNS
* Success: DS_OK
* Failure: DSERR_INVALIDPARAM
*/
HRESULT WINAPI DirectSoundEnumerateW(
LPDSENUMCALLBACKW lpDSEnumCallback,
LPVOID lpContext )
{
unsigned devs, wod;
DSDRIVERDESC desc;
GUID guid;
int err;
WCHAR wDesc[MAXPNAMELEN];
WCHAR wName[MAXPNAMELEN];
TRACE("lpDSEnumCallback = %p, lpContext = %p\n",
lpDSEnumCallback, lpContext);
if (lpDSEnumCallback == NULL) {
WARN("invalid parameter: lpDSEnumCallback == NULL\n");
return DSERR_INVALIDPARAM;
}
devs = waveOutGetNumDevs();
if (devs > 0) {
if (GetDeviceID(&DSDEVID_DefaultPlayback, &guid) == DS_OK) {
GUID temp;
for (wod = 0; wod < devs; ++wod) {
err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDGUID,(DWORD)&temp,0));
if (err == DS_OK) {
if (IsEqualGUID( &guid, &temp ) ) {
err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD)&desc,0));
if (err == DS_OK) {
TRACE("calling lpDSEnumCallback(NULL,\"%s\",\"%s\",%p)\n",
"Primary Sound Driver",desc.szDrvName,lpContext);
MultiByteToWideChar( CP_ACP, 0, "Primary Sound Driver", -1,
wDesc, sizeof(wDesc)/sizeof(WCHAR) );
MultiByteToWideChar( CP_ACP, 0, desc.szDrvName, -1,
wName, sizeof(wName)/sizeof(WCHAR) );
if (lpDSEnumCallback(NULL, wDesc, wName, lpContext) == FALSE)
return DS_OK;
}
}
}
}
}
}
for (wod = 0; wod < devs; ++wod) {
err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDDESC,(DWORD)&desc,0));
if (err == DS_OK) {
err = mmErr(waveOutMessage((HWAVEOUT)wod,DRV_QUERYDSOUNDGUID,(DWORD)&guid,0));
if (err == DS_OK) {
TRACE("calling lpDSEnumCallback(%s,\"%s\",\"%s\",%p)\n",
debugstr_guid(&guid),desc.szDesc,desc.szDrvName,lpContext);
MultiByteToWideChar( CP_ACP, 0, desc.szDesc, -1,
wDesc, sizeof(wDesc)/sizeof(WCHAR) );
MultiByteToWideChar( CP_ACP, 0, desc.szDrvName, -1,
wName, sizeof(wName)/sizeof(WCHAR) );
if (lpDSEnumCallback(&guid, wDesc, wName, lpContext) == FALSE)
return DS_OK;
}
}
}
return DS_OK;
}
/*******************************************************************************
* DirectSound ClassFactory
*/
static HRESULT WINAPI
DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
ICOM_THIS(IClassFactoryImpl,iface);
FIXME("(%p)->(%s,%p),stub!\n",This,debugstr_guid(riid),ppobj);
return E_NOINTERFACE;
}
static ULONG WINAPI
DSCF_AddRef(LPCLASSFACTORY iface) {
ICOM_THIS(IClassFactoryImpl,iface);
TRACE("(%p) ref was %ld\n", This, This->ref);
return ++(This->ref);
}
static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface) {
ICOM_THIS(IClassFactoryImpl,iface);
/* static class, won't be freed */
TRACE("(%p) ref was %ld\n", This, This->ref);
return --(This->ref);
}
static HRESULT WINAPI DSCF_CreateInstance(
LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj
) {
ICOM_THIS(IClassFactoryImpl,iface);
TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
if (ppobj == NULL) {
WARN("invalid parameter\n");
return DSERR_INVALIDPARAM;
}
*ppobj = NULL;
if ( IsEqualIID( &IID_IDirectSound, riid ) )
return DirectSoundCreate(0,(LPDIRECTSOUND*)ppobj,pOuter);
if ( IsEqualIID( &IID_IDirectSound8, riid ) )
return DirectSoundCreate8(0,(LPDIRECTSOUND8*)ppobj,pOuter);
WARN("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);
return E_NOINTERFACE;
}
static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
ICOM_THIS(IClassFactoryImpl,iface);
FIXME("(%p)->(%d),stub!\n",This,dolock);
return S_OK;
}
static ICOM_VTABLE(IClassFactory) DSCF_Vtbl = {
ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
DSCF_QueryInterface,
DSCF_AddRef,
DSCF_Release,
DSCF_CreateInstance,
DSCF_LockServer
};
static IClassFactoryImpl DSOUND_CF = { &DSCF_Vtbl, 1 };
/*******************************************************************************
* DirectSoundPrivate ClassFactory
*/
static HRESULT WINAPI
DSPCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
ICOM_THIS(IClassFactoryImpl,iface);
FIXME("(%p)->(%s,%p),stub!\n",This,debugstr_guid(riid),ppobj);
return E_NOINTERFACE;
}
static ULONG WINAPI
DSPCF_AddRef(LPCLASSFACTORY iface) {
ICOM_THIS(IClassFactoryImpl,iface);
TRACE("(%p) ref was %ld\n", This, This->ref);
return ++(This->ref);
}
static ULONG WINAPI
DSPCF_Release(LPCLASSFACTORY iface) {
ICOM_THIS(IClassFactoryImpl,iface);
/* static class, won't be freed */
TRACE("(%p) ref was %ld\n", This, This->ref);
return --(This->ref);
}
static HRESULT WINAPI
DSPCF_CreateInstance(
LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj
) {
ICOM_THIS(IClassFactoryImpl,iface);
TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
if (ppobj == NULL) {
WARN("invalid parameter\n");
return DSERR_INVALIDPARAM;
}
*ppobj = NULL;
if ( IsEqualGUID( &IID_IKsPropertySet, riid ) ) {
return IKsPrivatePropertySetImpl_Create((IKsPrivatePropertySetImpl**)ppobj);
}
WARN("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);
return E_NOINTERFACE;
}
static HRESULT WINAPI
DSPCF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
ICOM_THIS(IClassFactoryImpl,iface);
FIXME("(%p)->(%d),stub!\n",This,dolock);
return S_OK;
}
static ICOM_VTABLE(IClassFactory) DSPCF_Vtbl = {
ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
DSPCF_QueryInterface,
DSPCF_AddRef,
DSPCF_Release,
DSPCF_CreateInstance,
DSPCF_LockServer
};
static IClassFactoryImpl DSOUND_PRIVATE_CF = { &DSPCF_Vtbl, 1 };
/*******************************************************************************
* DllGetClassObject [DSOUND.5]
* Retrieves class object from a DLL object
*
* NOTES
* Docs say returns STDAPI
*
* PARAMS
* rclsid [I] CLSID for the class object
* riid [I] Reference to identifier of interface for class object
* ppv [O] Address of variable to receive interface pointer for riid
*
* RETURNS
* Success: S_OK
* Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
* E_UNEXPECTED
*/
DWORD WINAPI DSOUND_DllGetClassObject(REFCLSID rclsid,REFIID riid,LPVOID *ppv)
{
TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
if (ppv == NULL) {
WARN("invalid parameter\n");
return E_INVALIDARG;
}
*ppv = NULL;
if ( IsEqualCLSID( &CLSID_DirectSound, rclsid ) ||
IsEqualCLSID( &CLSID_DirectSound8, rclsid ) ) {
if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
*ppv = (LPVOID)&DSOUND_CF;
IClassFactory_AddRef((IClassFactory*)*ppv);
return S_OK;
}
WARN("(%s,%s,%p): no interface found.\n",
debugstr_guid(rclsid), debugstr_guid(riid), ppv);
return S_FALSE;
}
if ( IsEqualCLSID( &CLSID_DirectSoundCapture, rclsid ) ||
IsEqualCLSID( &CLSID_DirectSoundCapture8, rclsid ) ) {
if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
*ppv = (LPVOID)&DSOUND_CAPTURE_CF;
IClassFactory_AddRef((IClassFactory*)*ppv);
return S_OK;
}
WARN("(%s,%s,%p): no interface found.\n",
debugstr_guid(rclsid), debugstr_guid(riid), ppv);
return S_FALSE;
}
if ( IsEqualCLSID( &CLSID_DirectSoundFullDuplex, rclsid ) ) {
if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
*ppv = (LPVOID)&DSOUND_FULLDUPLEX_CF;
IClassFactory_AddRef((IClassFactory*)*ppv);
return S_OK;
}
WARN("(%s,%s,%p): no interface found.\n",
debugstr_guid(rclsid), debugstr_guid(riid), ppv);
return S_FALSE;
}
if ( IsEqualCLSID( &CLSID_DirectSoundPrivate, rclsid ) ) {
if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
*ppv = (LPVOID)&DSOUND_PRIVATE_CF;
IClassFactory_AddRef((IClassFactory*)*ppv);
return S_OK;
}
WARN("(%s,%s,%p): no interface found.\n",
debugstr_guid(rclsid), debugstr_guid(riid), ppv);
return S_FALSE;
}
WARN("(%s,%s,%p): no class found.\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
return CLASS_E_CLASSNOTAVAILABLE;
}
/*******************************************************************************
* DllCanUnloadNow [DSOUND.4]
* Determines whether the DLL is in use.
*
* RETURNS
* Success: S_OK
* Failure: S_FALSE
*/
DWORD WINAPI DSOUND_DllCanUnloadNow(void)
{
FIXME("(void): stub\n");
return S_FALSE;
}