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authorMamadou DIOP <bossiel@yahoo.fr>2015-08-17 01:56:35 +0200
committerMamadou DIOP <bossiel@yahoo.fr>2015-08-17 01:56:35 +0200
commit631fffee8a28b1bec5ed1f1d26a20e0135967f99 (patch)
tree74afe3bf3efe15aa82bcd0272b2b0f4d48c2d837 /branches/1.0/thirdparties/win32/include/directshow/wxutil.h
parent7908865936604036e6f200f1b5e069f8752f3a3a (diff)
downloaddoubango-631fffee8a28b1bec5ed1f1d26a20e0135967f99.zip
doubango-631fffee8a28b1bec5ed1f1d26a20e0135967f99.tar.gz
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Diffstat (limited to 'branches/1.0/thirdparties/win32/include/directshow/wxutil.h')
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diff --git a/branches/1.0/thirdparties/win32/include/directshow/wxutil.h b/branches/1.0/thirdparties/win32/include/directshow/wxutil.h
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--- a/branches/1.0/thirdparties/win32/include/directshow/wxutil.h
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@@ -1,540 +0,0 @@
-//------------------------------------------------------------------------------
-// File: WXUtil.h
-//
-// Desc: DirectShow base classes - defines helper classes and functions for
-// building multimedia filters.
-//
-// Copyright (c) Microsoft Corporation. All rights reserved.
-//------------------------------------------------------------------------------
-
-
-#ifndef __WXUTIL__
-#define __WXUTIL__
-
-// eliminate spurious "statement has no effect" warnings.
-#pragma warning(disable: 4705)
-
-// wrapper for whatever critical section we have
-class CCritSec {
-
- // make copy constructor and assignment operator inaccessible
-
- CCritSec(const CCritSec &refCritSec);
- CCritSec &operator=(const CCritSec &refCritSec);
-
- CRITICAL_SECTION m_CritSec;
-
-#ifdef DEBUG
-public:
- DWORD m_currentOwner;
- DWORD m_lockCount;
- BOOL m_fTrace; // Trace this one
-public:
- CCritSec();
- ~CCritSec();
- void Lock();
- void Unlock();
-#else
-
-public:
- CCritSec() {
- InitializeCriticalSection(&m_CritSec);
- };
-
- ~CCritSec() {
- DeleteCriticalSection(&m_CritSec);
- };
-
- void Lock() {
- EnterCriticalSection(&m_CritSec);
- };
-
- void Unlock() {
- LeaveCriticalSection(&m_CritSec);
- };
-#endif
-};
-
-//
-// To make deadlocks easier to track it is useful to insert in the
-// code an assertion that says whether we own a critical section or
-// not. We make the routines that do the checking globals to avoid
-// having different numbers of member functions in the debug and
-// retail class implementations of CCritSec. In addition we provide
-// a routine that allows usage of specific critical sections to be
-// traced. This is NOT on by default - there are far too many.
-//
-
-#ifdef DEBUG
- BOOL WINAPI CritCheckIn(CCritSec * pcCrit);
- BOOL WINAPI CritCheckIn(const CCritSec * pcCrit);
- BOOL WINAPI CritCheckOut(CCritSec * pcCrit);
- BOOL WINAPI CritCheckOut(const CCritSec * pcCrit);
- void WINAPI DbgLockTrace(CCritSec * pcCrit, BOOL fTrace);
-#else
- #define CritCheckIn(x) TRUE
- #define CritCheckOut(x) TRUE
- #define DbgLockTrace(pc, fT)
-#endif
-
-
-// locks a critical section, and unlocks it automatically
-// when the lock goes out of scope
-class CAutoLock {
-
- // make copy constructor and assignment operator inaccessible
-
- CAutoLock(const CAutoLock &refAutoLock);
- CAutoLock &operator=(const CAutoLock &refAutoLock);
-
-protected:
- CCritSec * m_pLock;
-
-public:
- CAutoLock(CCritSec * plock)
- {
- m_pLock = plock;
- m_pLock->Lock();
- };
-
- ~CAutoLock() {
- m_pLock->Unlock();
- };
-};
-
-
-
-// wrapper for event objects
-class CAMEvent
-{
-
- // make copy constructor and assignment operator inaccessible
-
- CAMEvent(const CAMEvent &refEvent);
- CAMEvent &operator=(const CAMEvent &refEvent);
-
-protected:
- HANDLE m_hEvent;
-public:
- CAMEvent(BOOL fManualReset = FALSE);
- ~CAMEvent();
-
- // Cast to HANDLE - we don't support this as an lvalue
- operator HANDLE () const { return m_hEvent; };
-
- void Set() {EXECUTE_ASSERT(SetEvent(m_hEvent));};
- BOOL Wait(DWORD dwTimeout = INFINITE) {
- return (WaitForSingleObject(m_hEvent, dwTimeout) == WAIT_OBJECT_0);
- };
- void Reset() { ResetEvent(m_hEvent); };
- BOOL Check() { return Wait(0); };
-};
-
-
-// wrapper for event objects that do message processing
-// This adds ONE method to the CAMEvent object to allow sent
-// messages to be processed while waiting
-
-class CAMMsgEvent : public CAMEvent
-{
-
-public:
-
- // Allow SEND messages to be processed while waiting
- BOOL WaitMsg(DWORD dwTimeout = INFINITE);
-};
-
-// old name supported for the time being
-#define CTimeoutEvent CAMEvent
-
-// support for a worker thread
-
-// simple thread class supports creation of worker thread, synchronization
-// and communication. Can be derived to simplify parameter passing
-class AM_NOVTABLE CAMThread {
-
- // make copy constructor and assignment operator inaccessible
-
- CAMThread(const CAMThread &refThread);
- CAMThread &operator=(const CAMThread &refThread);
-
- CAMEvent m_EventSend;
- CAMEvent m_EventComplete;
-
- DWORD m_dwParam;
- DWORD m_dwReturnVal;
-
-protected:
- HANDLE m_hThread;
-
- // thread will run this function on startup
- // must be supplied by derived class
- virtual DWORD ThreadProc() = 0;
-
-public:
- CAMThread();
- virtual ~CAMThread();
-
- CCritSec m_AccessLock; // locks access by client threads
- CCritSec m_WorkerLock; // locks access to shared objects
-
- // thread initially runs this. param is actually 'this'. function
- // just gets this and calls ThreadProc
- static DWORD WINAPI InitialThreadProc(LPVOID pv);
-
- // start thread running - error if already running
- BOOL Create();
-
- // signal the thread, and block for a response
- //
- DWORD CallWorker(DWORD);
-
- // accessor thread calls this when done with thread (having told thread
- // to exit)
- void Close() {
- #pragma warning( push )
- // C4312: 'type cast' : conversion from 'LONG' to 'PVOID' of greater size
- //
- // This code works correctly on 32-bit and 64-bit systems.
- #pragma warning( disable : 4312 )
- HANDLE hThread = (HANDLE)InterlockedExchangePointer(&m_hThread, 0);
- #pragma warning( pop )
-
- if (hThread) {
- WaitForSingleObject(hThread, INFINITE);
- CloseHandle(hThread);
- }
- };
-
- // ThreadExists
- // Return TRUE if the thread exists. FALSE otherwise
- BOOL ThreadExists(void) const
- {
- if (m_hThread == 0) {
- return FALSE;
- } else {
- return TRUE;
- }
- }
-
- // wait for the next request
- DWORD GetRequest();
-
- // is there a request?
- BOOL CheckRequest(DWORD * pParam);
-
- // reply to the request
- void Reply(DWORD);
-
- // If you want to do WaitForMultipleObjects you'll need to include
- // this handle in your wait list or you won't be responsive
- HANDLE GetRequestHandle() const { return m_EventSend; };
-
- // Find out what the request was
- DWORD GetRequestParam() const { return m_dwParam; };
-
- // call CoInitializeEx (COINIT_DISABLE_OLE1DDE) if
- // available. S_FALSE means it's not available.
- static HRESULT CoInitializeHelper();
-};
-
-
-// CQueue
-//
-// Implements a simple Queue ADT. The queue contains a finite number of
-// objects, access to which is controlled by a semaphore. The semaphore
-// is created with an initial count (N). Each time an object is added
-// a call to WaitForSingleObject is made on the semaphore's handle. When
-// this function returns a slot has been reserved in the queue for the new
-// object. If no slots are available the function blocks until one becomes
-// available. Each time an object is removed from the queue ReleaseSemaphore
-// is called on the semaphore's handle, thus freeing a slot in the queue.
-// If no objects are present in the queue the function blocks until an
-// object has been added.
-
-#define DEFAULT_QUEUESIZE 2
-
-template <class T> class CQueue {
-private:
- HANDLE hSemPut; // Semaphore controlling queue "putting"
- HANDLE hSemGet; // Semaphore controlling queue "getting"
- CRITICAL_SECTION CritSect; // Thread seriallization
- int nMax; // Max objects allowed in queue
- int iNextPut; // Array index of next "PutMsg"
- int iNextGet; // Array index of next "GetMsg"
- T *QueueObjects; // Array of objects (ptr's to void)
-
- void Initialize(int n) {
- iNextPut = iNextGet = 0;
- nMax = n;
- InitializeCriticalSection(&CritSect);
- hSemPut = CreateSemaphore(NULL, n, n, NULL);
- hSemGet = CreateSemaphore(NULL, 0, n, NULL);
- QueueObjects = new T[n];
- }
-
-
-public:
- CQueue(int n) {
- Initialize(n);
- }
-
- CQueue() {
- Initialize(DEFAULT_QUEUESIZE);
- }
-
- ~CQueue() {
- delete [] QueueObjects;
- DeleteCriticalSection(&CritSect);
- CloseHandle(hSemPut);
- CloseHandle(hSemGet);
- }
-
- T GetQueueObject() {
- int iSlot;
- T Object;
- LONG lPrevious;
-
- // Wait for someone to put something on our queue, returns straight
- // away is there is already an object on the queue.
- //
- WaitForSingleObject(hSemGet, INFINITE);
-
- EnterCriticalSection(&CritSect);
- iSlot = iNextGet++ % nMax;
- Object = QueueObjects[iSlot];
- LeaveCriticalSection(&CritSect);
-
- // Release anyone waiting to put an object onto our queue as there
- // is now space available in the queue.
- //
- ReleaseSemaphore(hSemPut, 1L, &lPrevious);
- return Object;
- }
-
- void PutQueueObject(T Object) {
- int iSlot;
- LONG lPrevious;
-
- // Wait for someone to get something from our queue, returns straight
- // away is there is already an empty slot on the queue.
- //
- WaitForSingleObject(hSemPut, INFINITE);
-
- EnterCriticalSection(&CritSect);
- iSlot = iNextPut++ % nMax;
- QueueObjects[iSlot] = Object;
- LeaveCriticalSection(&CritSect);
-
- // Release anyone waiting to remove an object from our queue as there
- // is now an object available to be removed.
- //
- ReleaseSemaphore(hSemGet, 1L, &lPrevious);
- }
-};
-
-// miscellaneous string conversion functions
-// NOTE: as we need to use the same binaries on Win95 as on NT this code should
-// be compiled WITHOUT unicode being defined. Otherwise we will not pick up
-// these internal routines and the binary will not run on Win95.
-
-// int WINAPIV wsprintfWInternal(LPWSTR, LPCWSTR, ...);
-
-//LPWSTR
-//WINAPI
-//lstrcpyWInternal(
-// LPWSTR lpString1,
-// LPCWSTR lpString2
-// );
-LPWSTR
-WINAPI
-lstrcpynWInternal(
- LPWSTR lpString1,
- LPCWSTR lpString2,
- int iMaxLength
- );
-int
-WINAPI
-lstrcmpWInternal(
- LPCWSTR lpString1,
- LPCWSTR lpString2
- );
-int
-WINAPI
-lstrcmpiWInternal(
- LPCWSTR lpString1,
- LPCWSTR lpString2
- );
-int
-WINAPI
-lstrlenWInternal(
- LPCWSTR lpString
- );
-
-#ifndef UNICODE
-#define wsprintfW wsprintfWInternal
-#define lstrcpyW lstrcpyWInternal
-#define lstrcpynW lstrcpynWInternal
-#define lstrcmpW lstrcmpWInternal
-#define lstrcmpiW lstrcmpiWInternal
-#define lstrlenW lstrlenWInternal
-#endif
-
-extern "C"
-void * __stdcall memmoveInternal(void *, const void *, size_t);
-
-inline void * __cdecl memchrInternal(const void *buf, int chr, size_t cnt)
-{
-#ifdef _X86_
- void *pRet = NULL;
-
- _asm {
- cld // make sure we get the direction right
- mov ecx, cnt // num of bytes to scan
- mov edi, buf // pointer byte stream
- mov eax, chr // byte to scan for
- repne scasb // look for the byte in the byte stream
- jnz exit_memchr // Z flag set if byte found
- dec edi // scasb always increments edi even when it
- // finds the required byte
- mov pRet, edi
-exit_memchr:
- }
- return pRet;
-
-#else
- while ( cnt && (*(unsigned char *)buf != (unsigned char)chr) ) {
- buf = (unsigned char *)buf + 1;
- cnt--;
- }
-
- return(cnt ? (void *)buf : NULL);
-#endif
-}
-
-void WINAPI IntToWstr(int i, LPWSTR wstr, size_t len);
-
-#define WstrToInt(sz) _wtoi(sz)
-#define atoiW(sz) _wtoi(sz)
-#define atoiA(sz) atoi(sz)
-
-// These are available to help managing bitmap VIDEOINFOHEADER media structures
-
-extern const DWORD bits555[3];
-extern const DWORD bits565[3];
-extern const DWORD bits888[3];
-
-// These help convert between VIDEOINFOHEADER and BITMAPINFO structures
-
-STDAPI_(const GUID) GetTrueColorType(const BITMAPINFOHEADER *pbmiHeader);
-STDAPI_(const GUID) GetBitmapSubtype(const BITMAPINFOHEADER *pbmiHeader);
-STDAPI_(WORD) GetBitCount(const GUID *pSubtype);
-
-// strmbase.lib implements this for compatibility with people who
-// managed to link to this directly. we don't want to advertise it.
-//
-// STDAPI_(/* T */ CHAR *) GetSubtypeName(const GUID *pSubtype);
-
-STDAPI_(CHAR *) GetSubtypeNameA(const GUID *pSubtype);
-STDAPI_(WCHAR *) GetSubtypeNameW(const GUID *pSubtype);
-
-#ifdef UNICODE
-#define GetSubtypeName GetSubtypeNameW
-#else
-#define GetSubtypeName GetSubtypeNameA
-#endif
-
-STDAPI_(LONG) GetBitmapFormatSize(const BITMAPINFOHEADER *pHeader);
-STDAPI_(DWORD) GetBitmapSize(const BITMAPINFOHEADER *pHeader);
-STDAPI_(BOOL) ContainsPalette(const VIDEOINFOHEADER *pVideoInfo);
-STDAPI_(const RGBQUAD *) GetBitmapPalette(const VIDEOINFOHEADER *pVideoInfo);
-
-
-// Compares two interfaces and returns TRUE if they are on the same object
-BOOL WINAPI IsEqualObject(IUnknown *pFirst, IUnknown *pSecond);
-
-// This is for comparing pins
-#define EqualPins(pPin1, pPin2) IsEqualObject(pPin1, pPin2)
-
-
-// Arithmetic helper functions
-
-// Compute (a * b + rnd) / c
-LONGLONG WINAPI llMulDiv(LONGLONG a, LONGLONG b, LONGLONG c, LONGLONG rnd);
-LONGLONG WINAPI Int64x32Div32(LONGLONG a, LONG b, LONG c, LONG rnd);
-
-
-// Avoids us dyna-linking to SysAllocString to copy BSTR strings
-STDAPI WriteBSTR(BSTR * pstrDest, LPCWSTR szSrc);
-STDAPI FreeBSTR(BSTR* pstr);
-
-// Return a wide string - allocating memory for it
-// Returns:
-// S_OK - no error
-// E_POINTER - ppszReturn == NULL
-// E_OUTOFMEMORY - can't allocate memory for returned string
-STDAPI AMGetWideString(LPCWSTR pszString, LPWSTR *ppszReturn);
-
-// Special wait for objects owning windows
-DWORD WINAPI WaitDispatchingMessages(
- HANDLE hObject,
- DWORD dwWait,
- HWND hwnd = NULL,
- UINT uMsg = 0,
- HANDLE hEvent = NULL);
-
-// HRESULT_FROM_WIN32 converts ERROR_SUCCESS to a success code, but in
-// our use of HRESULT_FROM_WIN32, it typically means a function failed
-// to call SetLastError(), and we still want a failure code.
-//
-#define AmHresultFromWin32(x) (MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, x))
-
-// call GetLastError and return an HRESULT value that will fail the
-// SUCCEEDED() macro.
-HRESULT AmGetLastErrorToHResult(void);
-
-// duplicate of ATL's CComPtr to avoid linker conflicts.
-
-IUnknown* QzAtlComPtrAssign(IUnknown** pp, IUnknown* lp);
-
-template <class T>
-class QzCComPtr
-{
-public:
- typedef T _PtrClass;
- QzCComPtr() {p=NULL;}
- QzCComPtr(T* lp)
- {
- if ((p = lp) != NULL)
- p->AddRef();
- }
- QzCComPtr(const QzCComPtr<T>& lp)
- {
- if ((p = lp.p) != NULL)
- p->AddRef();
- }
- ~QzCComPtr() {if (p) p->Release();}
- void Release() {if (p) p->Release(); p=NULL;}
- operator T*() {return (T*)p;}
- T& operator*() {ASSERT(p!=NULL); return *p; }
- //The assert on operator& usually indicates a bug. If this is really
- //what is needed, however, take the address of the p member explicitly.
- T** operator&() { ASSERT(p==NULL); return &p; }
- T* operator->() { ASSERT(p!=NULL); return p; }
- T* operator=(T* lp){return (T*)QzAtlComPtrAssign((IUnknown**)&p, lp);}
- T* operator=(const QzCComPtr<T>& lp)
- {
- return (T*)QzAtlComPtrAssign((IUnknown**)&p, lp.p);
- }
-#if _MSC_VER>1020
- bool operator!(){return (p == NULL);}
-#else
- BOOL operator!(){return (p == NULL) ? TRUE : FALSE;}
-#endif
- T* p;
-};
-
-MMRESULT CompatibleTimeSetEvent( UINT uDelay, UINT uResolution, LPTIMECALLBACK lpTimeProc, DWORD_PTR dwUser, UINT fuEvent );
-bool TimeKillSynchronousFlagAvailable( void );
-
-#endif /* __WXUTIL__ */
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