diff options
Diffstat (limited to 'third_party/BaseClasses/dllentry.cpp')
| -rw-r--r-- | third_party/BaseClasses/dllentry.cpp | 367 |
1 files changed, 0 insertions, 367 deletions
diff --git a/third_party/BaseClasses/dllentry.cpp b/third_party/BaseClasses/dllentry.cpp deleted file mode 100644 index 130aad6a..00000000 --- a/third_party/BaseClasses/dllentry.cpp +++ /dev/null @@ -1,367 +0,0 @@ -//------------------------------------------------------------------------------
-// File: DlleEntry.cpp
-//
-// Desc: DirectShow base classes - implements classes used to support dll
-// entry points for COM objects.
-//
-// Copyright (c) 1992-2001 Microsoft Corporation. All rights reserved.
-//------------------------------------------------------------------------------
-
-
-#include <streams.h>
-#include <initguid.h>
-
-#ifdef DEBUG
-#ifdef UNICODE
-#ifndef _UNICODE
-#define _UNICODE
-#endif // _UNICODE
-#endif // UNICODE
-
-#include <tchar.h>
-#endif // DEBUG
-#include <strsafe.h>
-
-extern CFactoryTemplate g_Templates[];
-extern int g_cTemplates;
-
-HINSTANCE g_hInst;
-DWORD g_amPlatform; // VER_PLATFORM_WIN32_WINDOWS etc... (from GetVersionEx)
-OSVERSIONINFO g_osInfo;
-
-//
-// an instance of this is created by the DLLGetClassObject entrypoint
-// it uses the CFactoryTemplate object it is given to support the
-// IClassFactory interface
-
-class CClassFactory : public IClassFactory, public CBaseObject
-{
-
-private:
- const CFactoryTemplate *const m_pTemplate;
-
- ULONG m_cRef;
-
- static int m_cLocked;
-public:
- CClassFactory(const CFactoryTemplate *);
-
- // IUnknown
- STDMETHODIMP QueryInterface(REFIID riid, __deref_out void ** ppv);
- STDMETHODIMP_(ULONG)AddRef();
- STDMETHODIMP_(ULONG)Release();
-
- // IClassFactory
- STDMETHODIMP CreateInstance(LPUNKNOWN pUnkOuter, REFIID riid, __deref_out void **pv);
- STDMETHODIMP LockServer(BOOL fLock);
-
- // allow DLLGetClassObject to know about global server lock status
- static BOOL IsLocked() {
- return (m_cLocked > 0);
- };
-};
-
-// process-wide dll locked state
-int CClassFactory::m_cLocked = 0;
-
-CClassFactory::CClassFactory(const CFactoryTemplate *pTemplate)
-: CBaseObject(NAME("Class Factory"))
-, m_cRef(0)
-, m_pTemplate(pTemplate)
-{
-}
-
-
-STDMETHODIMP
-CClassFactory::QueryInterface(REFIID riid,__deref_out void **ppv)
-{
- CheckPointer(ppv,E_POINTER)
- ValidateReadWritePtr(ppv,sizeof(PVOID));
- *ppv = NULL;
-
- // any interface on this object is the object pointer.
- if ((riid == IID_IUnknown) || (riid == IID_IClassFactory)) {
- *ppv = (LPVOID) this;
- // AddRef returned interface pointer
- ((LPUNKNOWN) *ppv)->AddRef();
- return NOERROR;
- }
-
- return ResultFromScode(E_NOINTERFACE);
-}
-
-
-STDMETHODIMP_(ULONG)
-CClassFactory::AddRef()
-{
- return ++m_cRef;
-}
-
-STDMETHODIMP_(ULONG)
-CClassFactory::Release()
-{
- LONG lRef = InterlockedDecrement((volatile LONG *)&m_cRef);
- if (lRef == 0) {
- delete this;
- return 0;
- } else {
- return lRef;
- }
-}
-
-STDMETHODIMP
-CClassFactory::CreateInstance(
- LPUNKNOWN pUnkOuter,
- REFIID riid,
- __deref_out void **pv)
-{
- CheckPointer(pv,E_POINTER)
- ValidateReadWritePtr(pv,sizeof(void *));
- *pv = NULL;
-
- /* Enforce the normal OLE rules regarding interfaces and delegation */
-
- if (pUnkOuter != NULL) {
- if (IsEqualIID(riid,IID_IUnknown) == FALSE) {
- *pv = NULL;
- return ResultFromScode(E_NOINTERFACE);
- }
- }
-
- /* Create the new object through the derived class's create function */
-
- HRESULT hr = NOERROR;
- CUnknown *pObj = m_pTemplate->CreateInstance(pUnkOuter, &hr);
-
- if (pObj == NULL) {
- *pv = NULL;
- if (SUCCEEDED(hr)) {
- hr = E_OUTOFMEMORY;
- }
- return hr;
- }
-
- /* Delete the object if we got a construction error */
-
- if (FAILED(hr)) {
- delete pObj;
- *pv = NULL;
- return hr;
- }
-
- /* Get a reference counted interface on the object */
-
- /* We wrap the non-delegating QI with NDAddRef & NDRelease. */
- /* This protects any outer object from being prematurely */
- /* released by an inner object that may have to be created */
- /* in order to supply the requested interface. */
- pObj->NonDelegatingAddRef();
- hr = pObj->NonDelegatingQueryInterface(riid, pv);
- pObj->NonDelegatingRelease();
- /* Note that if NonDelegatingQueryInterface fails, it will */
- /* not increment the ref count, so the NonDelegatingRelease */
- /* will drop the ref back to zero and the object will "self-*/
- /* destruct". Hence we don't need additional tidy-up code */
- /* to cope with NonDelegatingQueryInterface failing. */
-
- if (SUCCEEDED(hr)) {
- ASSERT(*pv);
- }
-
- return hr;
-}
-
-STDMETHODIMP
-CClassFactory::LockServer(BOOL fLock)
-{
- if (fLock) {
- m_cLocked++;
- } else {
- m_cLocked--;
- }
- return NOERROR;
-}
-
-
-// --- COM entrypoints -----------------------------------------
-
-//called by COM to get the class factory object for a given class
-__control_entrypoint(DllExport) STDAPI
-DllGetClassObject(
- __in REFCLSID rClsID,
- __in REFIID riid,
- __deref_out void **pv)
-{
- *pv = NULL;
- if (!(riid == IID_IUnknown) && !(riid == IID_IClassFactory)) {
- return E_NOINTERFACE;
- }
-
- // traverse the array of templates looking for one with this
- // class id
- for (int i = 0; i < g_cTemplates; i++) {
- const CFactoryTemplate * pT = &g_Templates[i];
- if (pT->IsClassID(rClsID)) {
-
- // found a template - make a class factory based on this
- // template
-
- *pv = (LPVOID) (LPUNKNOWN) new CClassFactory(pT);
- if (*pv == NULL) {
- return E_OUTOFMEMORY;
- }
- ((LPUNKNOWN)*pv)->AddRef();
- return NOERROR;
- }
- }
- return CLASS_E_CLASSNOTAVAILABLE;
-}
-
-//
-// Call any initialization routines
-//
-void
-DllInitClasses(BOOL bLoading)
-{
- int i;
-
- // traverse the array of templates calling the init routine
- // if they have one
- for (i = 0; i < g_cTemplates; i++) {
- const CFactoryTemplate * pT = &g_Templates[i];
- if (pT->m_lpfnInit != NULL) {
- (*pT->m_lpfnInit)(bLoading, pT->m_ClsID);
- }
- }
-
-}
-
-// called by COM to determine if this dll can be unloaded
-// return ok unless there are outstanding objects or a lock requested
-// by IClassFactory::LockServer
-//
-// CClassFactory has a static function that can tell us about the locks,
-// and CCOMObject has a static function that can tell us about the active
-// object count
-STDAPI
-DllCanUnloadNow()
-{
- DbgLog((LOG_MEMORY,2,TEXT("DLLCanUnloadNow called - IsLocked = %d, Active objects = %d"),
- CClassFactory::IsLocked(),
- CBaseObject::ObjectsActive()));
-
- if (CClassFactory::IsLocked() || CBaseObject::ObjectsActive()) {
- return S_FALSE;
- } else {
- return S_OK;
- }
-}
-
-
-// --- standard WIN32 entrypoints --------------------------------------
-
-
-extern "C" void __cdecl __security_init_cookie(void);
-extern "C" BOOL WINAPI _DllEntryPoint(HINSTANCE, ULONG, __inout_opt LPVOID);
-#pragma comment(linker, "/merge:.CRT=.rdata")
-
-extern "C"
-DECLSPEC_NOINLINE
-BOOL
-WINAPI
-DllEntryPoint(
- HINSTANCE hInstance,
- ULONG ulReason,
- __inout_opt LPVOID pv
- )
-{
- if ( ulReason == DLL_PROCESS_ATTACH ) {
- // Must happen before any other code is executed. Thankfully - it's re-entrant
- __security_init_cookie();
- }
- return _DllEntryPoint(hInstance, ulReason, pv);
-}
-
-
-DECLSPEC_NOINLINE
-BOOL
-WINAPI
-_DllEntryPoint(
- HINSTANCE hInstance,
- ULONG ulReason,
- __inout_opt LPVOID pv
- )
-{
-#ifdef DEBUG
- extern bool g_fDbgInDllEntryPoint;
- g_fDbgInDllEntryPoint = true;
-#endif
-
- switch (ulReason)
- {
-
- case DLL_PROCESS_ATTACH:
- DisableThreadLibraryCalls(hInstance);
- DbgInitialise(hInstance);
-
- {
- // The platform identifier is used to work out whether
- // full unicode support is available or not. Hence the
- // default will be the lowest common denominator - i.e. N/A
- g_amPlatform = VER_PLATFORM_WIN32_WINDOWS; // win95 assumed in case GetVersionEx fails
-
- g_osInfo.dwOSVersionInfoSize = sizeof(g_osInfo);
- if (GetVersionEx(&g_osInfo)) {
- g_amPlatform = g_osInfo.dwPlatformId;
- } else {
- DbgLog((LOG_ERROR, 1, TEXT("Failed to get the OS platform, assuming Win95")));
- }
- }
-
- g_hInst = hInstance;
- DllInitClasses(TRUE);
- break;
-
- case DLL_PROCESS_DETACH:
- DllInitClasses(FALSE);
-
-#ifdef DEBUG
- if (CBaseObject::ObjectsActive()) {
- DbgSetModuleLevel(LOG_MEMORY, 2);
- TCHAR szInfo[512];
- extern TCHAR m_ModuleName[]; // Cut down module name
-
- TCHAR FullName[_MAX_PATH]; // Load the full path and module name
- TCHAR *pName; // Searches from the end for a backslash
-
- GetModuleFileName(NULL,FullName,_MAX_PATH);
- pName = _tcsrchr(FullName,'\\');
- if (pName == NULL) {
- pName = FullName;
- } else {
- pName++;
- }
-
- (void)StringCchPrintf(szInfo, NUMELMS(szInfo), TEXT("Executable: %s Pid %x Tid %x. "),
- pName, GetCurrentProcessId(), GetCurrentThreadId());
-
- (void)StringCchPrintf(szInfo+lstrlen(szInfo), NUMELMS(szInfo) - lstrlen(szInfo), TEXT("Module %s, %d objects left active!"),
- m_ModuleName, CBaseObject::ObjectsActive());
- DbgAssert(szInfo, TEXT(__FILE__),__LINE__);
-
- // If running remotely wait for the Assert to be acknowledged
- // before dumping out the object register
- DbgDumpObjectRegister();
- }
- DbgTerminate();
-#endif
- break;
- }
-
-#ifdef DEBUG
- g_fDbgInDllEntryPoint = false;
-#endif
- return TRUE;
-}
-
-
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