Sweden-Number/dlls/amstream/main.c

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/*
* MultiMedia Streams Base Functions (AMSTREAM.DLL)
*
* Copyright 2004 Christian Costa
*
* 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 <stdarg.h>
#include <string.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winerror.h"
#include "ole2.h"
#include "rpcproxy.h"
#include "amstream_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(amstream);
/******************************************************************************
* Multimedia Streams ClassFactory
*/
typedef struct {
IClassFactory IClassFactory_iface;
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LONG ref;
HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
} IClassFactoryImpl;
static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
{
return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
}
struct object_creation_info
{
const CLSID *clsid;
HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
};
static const struct object_creation_info object_creation[] =
{
{ &CLSID_AMMultiMediaStream, multimedia_stream_create },
{ &CLSID_AMDirectDrawStream, ddraw_stream_create },
{ &CLSID_AMAudioStream, audio_stream_create },
{ &CLSID_AMAudioData, AMAudioData_create },
{ &CLSID_MediaStreamFilter, filter_create }
};
static HRESULT WINAPI AMCF_QueryInterface(IClassFactory *iface, REFIID riid, void **ppobj)
{
if (IsEqualGUID(riid, &IID_IUnknown)
|| IsEqualGUID(riid, &IID_IClassFactory))
{
IClassFactory_AddRef(iface);
*ppobj = iface;
return S_OK;
}
*ppobj = NULL;
WARN("(%p)->(%s,%p), not found\n", iface, debugstr_guid(riid), ppobj);
return E_NOINTERFACE;
}
static ULONG WINAPI AMCF_AddRef(IClassFactory *iface)
{
IClassFactoryImpl *This = impl_from_IClassFactory(iface);
return InterlockedIncrement(&This->ref);
}
static ULONG WINAPI AMCF_Release(IClassFactory *iface)
{
IClassFactoryImpl *This = impl_from_IClassFactory(iface);
ULONG ref = InterlockedDecrement(&This->ref);
if (ref == 0)
HeapFree(GetProcessHeap(), 0, This);
return ref;
}
static HRESULT WINAPI AMCF_CreateInstance(IClassFactory *iface, IUnknown *pOuter,
REFIID riid, void **ppobj)
{
IClassFactoryImpl *This = impl_from_IClassFactory(iface);
HRESULT hres;
IUnknown *punk;
TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
*ppobj = NULL;
hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
if (SUCCEEDED(hres)) {
hres = IUnknown_QueryInterface(punk, riid, ppobj);
IUnknown_Release(punk);
}
return hres;
}
static HRESULT WINAPI AMCF_LockServer(IClassFactory *iface, BOOL dolock)
{
IClassFactoryImpl *This = impl_from_IClassFactory(iface);
FIXME("(%p)->(%d),stub!\n",This,dolock);
return S_OK;
}
static const IClassFactoryVtbl DSCF_Vtbl =
{
AMCF_QueryInterface,
AMCF_AddRef,
AMCF_Release,
AMCF_CreateInstance,
AMCF_LockServer
};
/*******************************************************************************
* DllGetClassObject [AMSTREAM.@]
* 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)
{
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unsigned int i;
IClassFactoryImpl *factory;
TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
if ( !IsEqualGUID( &IID_IClassFactory, riid )
&& ! IsEqualGUID( &IID_IUnknown, riid) )
return E_NOINTERFACE;
for (i = 0; i < ARRAY_SIZE(object_creation); i++)
{
if (IsEqualGUID(object_creation[i].clsid, rclsid))
break;
}
if (i == ARRAY_SIZE(object_creation))
{
FIXME("%s: no class found.\n", debugstr_guid(rclsid));
return CLASS_E_CLASSNOTAVAILABLE;
}
factory = HeapAlloc(GetProcessHeap(), 0, sizeof(*factory));
if (factory == NULL) return E_OUTOFMEMORY;
factory->IClassFactory_iface.lpVtbl = &DSCF_Vtbl;
factory->ref = 1;
factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
*ppv = &factory->IClassFactory_iface;
return S_OK;
}