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/* DirectSound
*
* Copyright 1998 Marcus Meissner
* Copyright 1998 Rob Riggs
* Copyright 2000-2002 TransGaming Technologies, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* Most thread locking is complete. There may be a few race
* conditions still lurking.
*
* 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 for 3d buffers
* Remove DS_HEL_FRAGS and use mixer fragment length for it
*/
#include <stdarg.h>
#define COBJMACROS
#define NONAMELESSUNION
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winnls.h"
#include "winreg.h"
#include "mmsystem.h"
#include "mmddk.h"
#include "wine/debug.h"
#include "dsound.h"
#include "dsconf.h"
#include "ks.h"
#include "rpcproxy.h"
#include "rpc.h"
#include "rpcndr.h"
#include "unknwn.h"
#include "oleidl.h"
#include "shobjidl.h"
#include "strmif.h"
#include "initguid.h"
#include "ksmedia.h"
#include "propkey.h"
#include "devpkey.h"
#include "dsound_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(dsound);
struct list DSOUND_renderers = LIST_INIT(DSOUND_renderers);
CRITICAL_SECTION DSOUND_renderers_lock;
static CRITICAL_SECTION_DEBUG DSOUND_renderers_lock_debug =
{
0, 0, &DSOUND_renderers_lock,
{ &DSOUND_renderers_lock_debug.ProcessLocksList, &DSOUND_renderers_lock_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": DSOUND_renderers_lock") }
};
CRITICAL_SECTION DSOUND_renderers_lock = { &DSOUND_renderers_lock_debug, -1, 0, 0, 0, 0 };
struct list DSOUND_capturers = LIST_INIT(DSOUND_capturers);
CRITICAL_SECTION DSOUND_capturers_lock;
static CRITICAL_SECTION_DEBUG DSOUND_capturers_lock_debug =
{
0, 0, &DSOUND_capturers_lock,
{ &DSOUND_capturers_lock_debug.ProcessLocksList, &DSOUND_capturers_lock_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": DSOUND_capturers_lock") }
};
CRITICAL_SECTION DSOUND_capturers_lock = { &DSOUND_capturers_lock_debug, -1, 0, 0, 0, 0 };
GUID DSOUND_renderer_guids[MAXWAVEDRIVERS];
GUID DSOUND_capture_guids[MAXWAVEDRIVERS];
const WCHAR wine_vxd_drv[] = L"winemm.vxd";
/* All default settings, you most likely don't want to touch these, see wiki on UsefulRegistryKeys */
int ds_hel_buflen = 32768 * 2;
static HINSTANCE instance;
/*
* Get a config key from either the app-specific or the default config
*/
static inline DWORD get_config_key( HKEY defkey, HKEY appkey, const char *name,
char *buffer, DWORD size )
{
if (appkey && !RegQueryValueExA( appkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
if (defkey && !RegQueryValueExA( defkey, name, 0, NULL, (LPBYTE)buffer, &size )) return 0;
return ERROR_FILE_NOT_FOUND;
}
/*
* Setup the dsound options.
*/
void setup_dsound_options(void)
{
char buffer[MAX_PATH+16];
HKEY hkey, appkey = 0;
DWORD len;
buffer[MAX_PATH]='\0';
/* @@ Wine registry key: HKCU\Software\Wine\DirectSound */
if (RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\DirectSound", &hkey )) hkey = 0;
len = GetModuleFileNameA( 0, buffer, MAX_PATH );
if (len && len < MAX_PATH)
{
HKEY tmpkey;
/* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\DirectSound */
if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\AppDefaults", &tmpkey ))
{
char *p, *appname = buffer;
if ((p = strrchr( appname, '/' ))) appname = p + 1;
if ((p = strrchr( appname, '\\' ))) appname = p + 1;
strcat( appname, "\\DirectSound" );
TRACE("appname = [%s]\n", appname);
if (RegOpenKeyA( tmpkey, appname, &appkey )) appkey = 0;
RegCloseKey( tmpkey );
}
}
/* get options */
if (!get_config_key( hkey, appkey, "HelBuflen", buffer, MAX_PATH ))
ds_hel_buflen = atoi(buffer);
if (appkey) RegCloseKey( appkey );
if (hkey) RegCloseKey( hkey );
TRACE("ds_hel_buflen = %d\n", ds_hel_buflen);
}
static const char * get_device_id(LPCGUID pGuid)
{
if (IsEqualGUID(&DSDEVID_DefaultPlayback, pGuid))
return "DSDEVID_DefaultPlayback";
else if (IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuid))
return "DSDEVID_DefaultVoicePlayback";
else if (IsEqualGUID(&DSDEVID_DefaultCapture, pGuid))
return "DSDEVID_DefaultCapture";
else if (IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuid))
return "DSDEVID_DefaultVoiceCapture";
return debugstr_guid(pGuid);
}
static HRESULT get_mmdevenum(IMMDeviceEnumerator **devenum)
{
HRESULT hr, init_hr;
init_hr = CoInitialize(NULL);
hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL,
CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, (void**)devenum);
if(FAILED(hr)){
if(SUCCEEDED(init_hr))
CoUninitialize();
*devenum = NULL;
ERR("CoCreateInstance failed: %08x\n", hr);
return hr;
}
return init_hr;
}
static void release_mmdevenum(IMMDeviceEnumerator *devenum, HRESULT init_hr)
{
IMMDeviceEnumerator_Release(devenum);
if(SUCCEEDED(init_hr))
CoUninitialize();
}
static HRESULT get_mmdevice_guid(IMMDevice *device, IPropertyStore *ps,
GUID *guid)
{
PROPVARIANT pv;
HRESULT hr;
if(!ps){
hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
if(FAILED(hr)){
WARN("OpenPropertyStore failed: %08x\n", hr);
return hr;
}
}else
IPropertyStore_AddRef(ps);
PropVariantInit(&pv);
hr = IPropertyStore_GetValue(ps, &PKEY_AudioEndpoint_GUID, &pv);
if(FAILED(hr)){
IPropertyStore_Release(ps);
WARN("GetValue(GUID) failed: %08x\n", hr);
return hr;
}
CLSIDFromString(pv.u.pwszVal, guid);
PropVariantClear(&pv);
IPropertyStore_Release(ps);
return S_OK;
}
/***************************************************************************
* 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)
{
IMMDeviceEnumerator *devenum;
EDataFlow flow = (EDataFlow)-1;
ERole role = (ERole)-1;
HRESULT hr, init_hr;
TRACE("(%s,%p)\n", get_device_id(pGuidSrc),pGuidDest);
if(!pGuidSrc || !pGuidDest)
return DSERR_INVALIDPARAM;
init_hr = get_mmdevenum(&devenum);
if(!devenum)
return init_hr;
if(IsEqualGUID(&DSDEVID_DefaultPlayback, pGuidSrc)){
role = eMultimedia;
flow = eRender;
}else if(IsEqualGUID(&DSDEVID_DefaultVoicePlayback, pGuidSrc)){
role = eCommunications;
flow = eRender;
}else if(IsEqualGUID(&DSDEVID_DefaultCapture, pGuidSrc)){
role = eMultimedia;
flow = eCapture;
}else if(IsEqualGUID(&DSDEVID_DefaultVoiceCapture, pGuidSrc)){
role = eCommunications;
flow = eCapture;
}
if(role != (ERole)-1 && flow != (EDataFlow)-1){
IMMDevice *device;
hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum,
flow, role, &device);
if(FAILED(hr)){
WARN("GetDefaultAudioEndpoint failed: %08x\n", hr);
release_mmdevenum(devenum, init_hr);
return DSERR_NODRIVER;
}
hr = get_mmdevice_guid(device, NULL, pGuidDest);
IMMDevice_Release(device);
release_mmdevenum(devenum, init_hr);
return (hr == S_OK) ? DS_OK : hr;
}
release_mmdevenum(devenum, init_hr);
*pGuidDest = *pGuidSrc;
return DS_OK;
}
struct morecontext
{
LPDSENUMCALLBACKA callA;
LPVOID data;
};
static BOOL CALLBACK a_to_w_callback(LPGUID guid, LPCWSTR descW, LPCWSTR modW, LPVOID data)
{
struct morecontext *context = data;
char descA[MAXPNAMELEN], modA[MAXPNAMELEN];
WideCharToMultiByte(CP_ACP, 0, descW, -1, descA, sizeof(descA), NULL, NULL);
WideCharToMultiByte(CP_ACP, 0, modW, -1, modA, sizeof(modA), NULL, NULL);
return context->callA(guid, descA, modA, context->data);
}
/***************************************************************************
* 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)
{
struct morecontext context;
if (lpDSEnumCallback == NULL) {
WARN("invalid parameter: lpDSEnumCallback == NULL\n");
return DSERR_INVALIDPARAM;
}
context.callA = lpDSEnumCallback;
context.data = lpContext;
return DirectSoundEnumerateW(a_to_w_callback, &context);
}
HRESULT get_mmdevice(EDataFlow flow, const GUID *tgt, IMMDevice **device)
{
IMMDeviceEnumerator *devenum;
IMMDeviceCollection *coll;
UINT count, i;
HRESULT hr, init_hr;
init_hr = get_mmdevenum(&devenum);
if(!devenum)
return init_hr;
hr = IMMDeviceEnumerator_EnumAudioEndpoints(devenum, flow,
DEVICE_STATE_ACTIVE, &coll);
if(FAILED(hr)){
WARN("EnumAudioEndpoints failed: %08x\n", hr);
release_mmdevenum(devenum, init_hr);
return hr;
}
hr = IMMDeviceCollection_GetCount(coll, &count);
if(FAILED(hr)){
IMMDeviceCollection_Release(coll);
release_mmdevenum(devenum, init_hr);
WARN("GetCount failed: %08x\n", hr);
return hr;
}
for(i = 0; i < count; ++i){
GUID guid;
hr = IMMDeviceCollection_Item(coll, i, device);
if(FAILED(hr))
continue;
hr = get_mmdevice_guid(*device, NULL, &guid);
if(FAILED(hr)){
IMMDevice_Release(*device);
continue;
}
if(IsEqualGUID(&guid, tgt)){
IMMDeviceCollection_Release(coll);
release_mmdevenum(devenum, init_hr);
return DS_OK;
}
IMMDevice_Release(*device);
}
WARN("No device with GUID %s found!\n", wine_dbgstr_guid(tgt));
IMMDeviceCollection_Release(coll);
release_mmdevenum(devenum, init_hr);
return DSERR_INVALIDPARAM;
}
static BOOL send_device(IMMDevice *device, GUID *guid,
LPDSENUMCALLBACKW cb, void *user)
{
IPropertyStore *ps;
PROPVARIANT pv;
BOOL keep_going;
HRESULT hr;
PropVariantInit(&pv);
hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
if(FAILED(hr)){
WARN("OpenPropertyStore failed: %08x\n", hr);
return TRUE;
}
hr = get_mmdevice_guid(device, ps, guid);
if(FAILED(hr)){
IPropertyStore_Release(ps);
return TRUE;
}
hr = IPropertyStore_GetValue(ps,
(const PROPERTYKEY *)&DEVPKEY_Device_FriendlyName, &pv);
if(FAILED(hr)){
IPropertyStore_Release(ps);
WARN("GetValue(FriendlyName) failed: %08x\n", hr);
return TRUE;
}
TRACE("Calling back with %s (%s)\n", wine_dbgstr_guid(guid),
wine_dbgstr_w(pv.u.pwszVal));
keep_going = cb(guid, pv.u.pwszVal, wine_vxd_drv, user);
PropVariantClear(&pv);
IPropertyStore_Release(ps);
return keep_going;
}
/* S_FALSE means the callback returned FALSE at some point
* S_OK means the callback always returned TRUE */
HRESULT enumerate_mmdevices(EDataFlow flow, GUID *guids,
LPDSENUMCALLBACKW cb, void *user)
{
IMMDeviceEnumerator *devenum;
IMMDeviceCollection *coll;
IMMDevice *defdev = NULL;
UINT count, i, n;
BOOL keep_going;
HRESULT hr, init_hr;
init_hr = get_mmdevenum(&devenum);
if(!devenum)
return init_hr;
hr = IMMDeviceEnumerator_EnumAudioEndpoints(devenum, flow,
DEVICE_STATE_ACTIVE, &coll);
if(FAILED(hr)){
release_mmdevenum(devenum, init_hr);
WARN("EnumAudioEndpoints failed: %08x\n", hr);
return DS_OK;
}
hr = IMMDeviceCollection_GetCount(coll, &count);
if(FAILED(hr)){
IMMDeviceCollection_Release(coll);
release_mmdevenum(devenum, init_hr);
WARN("GetCount failed: %08x\n", hr);
return DS_OK;
}
if(count == 0){
IMMDeviceCollection_Release(coll);
release_mmdevenum(devenum, init_hr);
return DS_OK;
}
TRACE("Calling back with NULL (Primary Sound Driver)\n");
keep_going = cb(NULL, L"Primary Sound Driver", L"", user);
/* always send the default device first */
if(keep_going){
hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum, flow,
eMultimedia, &defdev);
if(FAILED(hr)){
defdev = NULL;
n = 0;
}else{
keep_going = send_device(defdev, &guids[0], cb, user);
n = 1;
}
}
for(i = 0; keep_going && i < count; ++i){
IMMDevice *device;
hr = IMMDeviceCollection_Item(coll, i, &device);
if(FAILED(hr)){
WARN("Item failed: %08x\n", hr);
continue;
}
if(device != defdev){
keep_going = send_device(device, &guids[n], cb, user);
++n;
}
IMMDevice_Release(device);
}
if(defdev)
IMMDevice_Release(defdev);
IMMDeviceCollection_Release(coll);
release_mmdevenum(devenum, init_hr);
return keep_going ? S_OK : S_FALSE;
}
/***************************************************************************
* 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 )
{
HRESULT hr;
TRACE("(%p,%p)\n", lpDSEnumCallback, lpContext);
if (lpDSEnumCallback == NULL) {
WARN("invalid parameter: lpDSEnumCallback == NULL\n");
return DSERR_INVALIDPARAM;
}
setup_dsound_options();
hr = enumerate_mmdevices(eRender, DSOUND_renderer_guids,
lpDSEnumCallback, lpContext);
return SUCCEEDED(hr) ? DS_OK : hr;
}
/***************************************************************************
* DirectSoundCaptureEnumerateA [DSOUND.7]
*
* 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 DirectSoundCaptureEnumerateA(
LPDSENUMCALLBACKA lpDSEnumCallback,
LPVOID lpContext)
{
struct morecontext context;
if (lpDSEnumCallback == NULL) {
WARN("invalid parameter: lpDSEnumCallback == NULL\n");
return DSERR_INVALIDPARAM;
}
context.callA = lpDSEnumCallback;
context.data = lpContext;
return DirectSoundCaptureEnumerateW(a_to_w_callback, &context);
}
/***************************************************************************
* DirectSoundCaptureEnumerateW [DSOUND.8]
*
* 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
DirectSoundCaptureEnumerateW(
LPDSENUMCALLBACKW lpDSEnumCallback,
LPVOID lpContext)
{
HRESULT hr;
TRACE("(%p,%p)\n", lpDSEnumCallback, lpContext );
if (lpDSEnumCallback == NULL) {
WARN("invalid parameter: lpDSEnumCallback == NULL\n");
return DSERR_INVALIDPARAM;
}
setup_dsound_options();
hr = enumerate_mmdevices(eCapture, DSOUND_capture_guids,
lpDSEnumCallback, lpContext);
return SUCCEEDED(hr) ? DS_OK : hr;
}
/*******************************************************************************
* DirectSound ClassFactory
*/
typedef HRESULT (*FnCreateInstance)(REFIID riid, LPVOID *ppobj);
typedef struct {
IClassFactory IClassFactory_iface;
REFCLSID rclsid;
FnCreateInstance pfnCreateInstance;
} IClassFactoryImpl;
static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
{
return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
}
static HRESULT WINAPI
DSCF_QueryInterface(IClassFactory *iface, REFIID riid, LPVOID *ppobj)
{
IClassFactoryImpl *This = impl_from_IClassFactory(iface);
TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppobj);
if (ppobj == NULL)
return E_POINTER;
if (IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IClassFactory))
{
*ppobj = iface;
IClassFactory_AddRef(iface);
return S_OK;
}
*ppobj = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
{
return 2;
}
static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
{
/* static class, won't be freed */
return 1;
}
static HRESULT WINAPI DSCF_CreateInstance(
LPCLASSFACTORY iface,
LPUNKNOWN pOuter,
REFIID riid,
LPVOID *ppobj)
{
IClassFactoryImpl *This = impl_from_IClassFactory(iface);
TRACE("(%p, %p, %s, %p)\n", This, pOuter, debugstr_guid(riid), ppobj);
if (pOuter)
return CLASS_E_NOAGGREGATION;
if (ppobj == NULL) {
WARN("invalid parameter\n");
return DSERR_INVALIDPARAM;
}
*ppobj = NULL;
return This->pfnCreateInstance(riid, ppobj);
}
static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
{
IClassFactoryImpl *This = impl_from_IClassFactory(iface);
FIXME("(%p, %d) stub!\n", This, dolock);
return S_OK;
}
static const IClassFactoryVtbl DSCF_Vtbl = {
DSCF_QueryInterface,
DSCF_AddRef,
DSCF_Release,
DSCF_CreateInstance,
DSCF_LockServer
};
static IClassFactoryImpl DSOUND_CF[] = {
{ { &DSCF_Vtbl }, &CLSID_DirectSound, DSOUND_Create },
{ { &DSCF_Vtbl }, &CLSID_DirectSound8, DSOUND_Create8 },
{ { &DSCF_Vtbl }, &CLSID_DirectSoundCapture, DSOUND_CaptureCreate },
{ { &DSCF_Vtbl }, &CLSID_DirectSoundCapture8, DSOUND_CaptureCreate8 },
{ { &DSCF_Vtbl }, &CLSID_DirectSoundFullDuplex, DSOUND_FullDuplexCreate },
{ { &DSCF_Vtbl }, &CLSID_DirectSoundPrivate, IKsPrivatePropertySetImpl_Create },
{ { NULL }, NULL, NULL }
};
/*******************************************************************************
* DllGetClassObject [DSOUND.@]
* 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
*/
HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
{
int i = 0;
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 (!IsEqualIID(riid, &IID_IClassFactory) &&
!IsEqualIID(riid, &IID_IUnknown)) {
WARN("no interface for %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
while (NULL != DSOUND_CF[i].rclsid) {
if (IsEqualGUID(rclsid, DSOUND_CF[i].rclsid)) {
DSCF_AddRef(&DSOUND_CF[i].IClassFactory_iface);
*ppv = &DSOUND_CF[i];
return S_OK;
}
i++;
}
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
* Can unload now: S_OK
* Cannot unload now (the DLL is still active): S_FALSE
*/
HRESULT WINAPI DllCanUnloadNow(void)
{
return S_FALSE;
}
#define INIT_GUID(guid, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
guid.Data1 = l; guid.Data2 = w1; guid.Data3 = w2; \
guid.Data4[0] = b1; guid.Data4[1] = b2; guid.Data4[2] = b3; \
guid.Data4[3] = b4; guid.Data4[4] = b5; guid.Data4[5] = b6; \
guid.Data4[6] = b7; guid.Data4[7] = b8;
/***********************************************************************
* DllMain (DSOUND.init)
*/
BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
TRACE("(%p %d %p)\n", hInstDLL, fdwReason, lpvReserved);
switch (fdwReason) {
case DLL_PROCESS_ATTACH:
instance = hInstDLL;
DisableThreadLibraryCalls(hInstDLL);
/* Increase refcount on dsound by 1 */
GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, (LPCWSTR)hInstDLL, &hInstDLL);
break;
case DLL_PROCESS_DETACH:
if (lpvReserved) break;
DeleteCriticalSection(&DSOUND_renderers_lock);
DeleteCriticalSection(&DSOUND_capturers_lock);
break;
}
return TRUE;
}
/***********************************************************************
* DllRegisterServer (DSOUND.@)
*/
HRESULT WINAPI DllRegisterServer(void)
{
return __wine_register_resources( instance );
}
/***********************************************************************
* DllUnregisterServer (DSOUND.@)
*/
HRESULT WINAPI DllUnregisterServer(void)
{
return __wine_unregister_resources( instance );
}
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