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209 lines
5.4 KiB
C
209 lines
5.4 KiB
C
/*
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* MultiMedia Streams Base Functions (AMSTREAM.DLL)
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*
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* Copyright 2004 Christian Costa
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*
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* This file contains the (internal) driver registration functions,
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* driver enumeration APIs and DirectDraw creation functions.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include <string.h>
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#define COBJMACROS
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#include "windef.h"
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#include "winbase.h"
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#include "winuser.h"
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#include "winerror.h"
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#include "ole2.h"
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#include "amstream_private.h"
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#include "amstream.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(amstream);
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static DWORD dll_ref = 0;
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/* For the moment, do nothing here. */
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BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
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{
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switch(fdwReason) {
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case DLL_PROCESS_ATTACH:
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DisableThreadLibraryCalls(hInstDLL);
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break;
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case DLL_PROCESS_DETACH:
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break;
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}
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return TRUE;
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}
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/******************************************************************************
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* Multimedia Streams ClassFactory
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*/
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typedef struct {
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IClassFactory ITF_IClassFactory;
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LONG ref;
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HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
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} IClassFactoryImpl;
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struct object_creation_info
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{
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const CLSID *clsid;
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HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
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};
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static const struct object_creation_info object_creation[] =
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{
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{ &CLSID_AMMultiMediaStream, AM_create },
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{ &CLSID_AMDirectDrawStream, AM_create },
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};
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static HRESULT WINAPI
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AMCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj)
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{
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IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
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if (IsEqualGUID(riid, &IID_IUnknown)
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|| IsEqualGUID(riid, &IID_IClassFactory))
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{
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IClassFactory_AddRef(iface);
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*ppobj = This;
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return S_OK;
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}
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WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
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return E_NOINTERFACE;
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}
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static ULONG WINAPI AMCF_AddRef(LPCLASSFACTORY iface)
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{
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IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
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return InterlockedIncrement(&This->ref);
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}
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static ULONG WINAPI AMCF_Release(LPCLASSFACTORY iface)
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{
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IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
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ULONG ref = InterlockedDecrement(&This->ref);
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if (ref == 0)
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HeapFree(GetProcessHeap(), 0, This);
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return ref;
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}
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static HRESULT WINAPI AMCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter,
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REFIID riid, LPVOID *ppobj)
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{
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IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
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HRESULT hres;
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LPUNKNOWN punk;
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TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
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*ppobj = NULL;
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hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
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if (SUCCEEDED(hres)) {
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hres = IUnknown_QueryInterface(punk, riid, ppobj);
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IUnknown_Release(punk);
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}
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return hres;
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}
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static HRESULT WINAPI AMCF_LockServer(LPCLASSFACTORY iface,BOOL dolock)
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{
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IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
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FIXME("(%p)->(%d),stub!\n",This,dolock);
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return S_OK;
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}
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static const IClassFactoryVtbl DSCF_Vtbl =
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{
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AMCF_QueryInterface,
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AMCF_AddRef,
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AMCF_Release,
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AMCF_CreateInstance,
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AMCF_LockServer
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};
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/*******************************************************************************
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* DllGetClassObject [AMSTREAM.@]
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* Retrieves class object from a DLL object
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*
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* NOTES
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* Docs say returns STDAPI
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*
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* PARAMS
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* rclsid [I] CLSID for the class object
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* riid [I] Reference to identifier of interface for class object
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* ppv [O] Address of variable to receive interface pointer for riid
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*
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* RETURNS
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* Success: S_OK
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* Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
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* E_UNEXPECTED
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*/
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HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
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{
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unsigned int i;
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IClassFactoryImpl *factory;
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TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
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if ( !IsEqualGUID( &IID_IClassFactory, riid )
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&& ! IsEqualGUID( &IID_IUnknown, riid) )
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return E_NOINTERFACE;
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for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
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{
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if (IsEqualGUID(object_creation[i].clsid, rclsid))
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break;
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}
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if (i == sizeof(object_creation)/sizeof(object_creation[0]))
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{
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FIXME("%s: no class found.\n", debugstr_guid(rclsid));
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return CLASS_E_CLASSNOTAVAILABLE;
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}
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factory = HeapAlloc(GetProcessHeap(), 0, sizeof(*factory));
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if (factory == NULL) return E_OUTOFMEMORY;
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factory->ITF_IClassFactory.lpVtbl = &DSCF_Vtbl;
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factory->ref = 1;
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factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
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*ppv = &(factory->ITF_IClassFactory);
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return S_OK;
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}
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/***********************************************************************
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* DllCanUnloadNow (AMSTREAM.@)
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*/
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HRESULT WINAPI DllCanUnloadNow(void)
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{
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return dll_ref != 0 ? S_FALSE : S_OK;
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}
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